1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited 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 35 #include <scsi/scsi.h> 36 #include <scsi/scsi_device.h> 37 #include <scsi/scsi_host.h> 38 #include <scsi/scsi_transport_fc.h> 39 #include <scsi/fc/fc_fs.h> 40 41 #include <linux/nvme-fc-driver.h> 42 43 #include "lpfc_hw4.h" 44 #include "lpfc_hw.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc_nl.h" 48 #include "lpfc_disc.h" 49 #include "lpfc.h" 50 #include "lpfc_scsi.h" 51 #include "lpfc_nvme.h" 52 #include "lpfc_nvmet.h" 53 #include "lpfc_logmsg.h" 54 #include "lpfc_crtn.h" 55 #include "lpfc_vport.h" 56 #include "lpfc_version.h" 57 #include "lpfc_compat.h" 58 #include "lpfc_debugfs.h" 59 #include "lpfc_bsg.h" 60 61 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 62 /* 63 * debugfs interface 64 * 65 * To access this interface the user should: 66 * # mount -t debugfs none /sys/kernel/debug 67 * 68 * The lpfc debugfs directory hierarchy is: 69 * /sys/kernel/debug/lpfc/fnX/vportY 70 * where X is the lpfc hba function unique_id 71 * where Y is the vport VPI on that hba 72 * 73 * Debugging services available per vport: 74 * discovery_trace 75 * This is an ACSII readable file that contains a trace of the last 76 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 77 * See lpfc_debugfs.h for different categories of discovery events. 78 * To enable the discovery trace, the following module parameters must be set: 79 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 80 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 81 * EACH vport. X MUST also be a power of 2. 82 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 83 * lpfc_debugfs.h . 84 * 85 * slow_ring_trace 86 * This is an ACSII readable file that contains a trace of the last 87 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 88 * To enable the slow ring trace, the following module parameters must be set: 89 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 90 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 91 * the HBA. X MUST also be a power of 2. 92 */ 93 static int lpfc_debugfs_enable = 1; 94 module_param(lpfc_debugfs_enable, int, S_IRUGO); 95 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 96 97 /* This MUST be a power of 2 */ 98 static int lpfc_debugfs_max_disc_trc; 99 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 100 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 101 "Set debugfs discovery trace depth"); 102 103 /* This MUST be a power of 2 */ 104 static int lpfc_debugfs_max_slow_ring_trc; 105 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 106 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 107 "Set debugfs slow ring trace depth"); 108 109 /* This MUST be a power of 2 */ 110 static int lpfc_debugfs_max_nvmeio_trc; 111 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 112 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 113 "Set debugfs NVME IO trace depth"); 114 115 static int lpfc_debugfs_mask_disc_trc; 116 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 117 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 118 "Set debugfs discovery trace mask"); 119 120 #include <linux/debugfs.h> 121 122 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 123 static unsigned long lpfc_debugfs_start_time = 0L; 124 125 /* iDiag */ 126 static struct lpfc_idiag idiag; 127 128 /** 129 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 130 * @vport: The vport to gather the log info from. 131 * @buf: The buffer to dump log into. 132 * @size: The maximum amount of data to process. 133 * 134 * Description: 135 * This routine gathers the lpfc discovery debugfs data from the @vport and 136 * dumps it to @buf up to @size number of bytes. It will start at the next entry 137 * in the log and process the log until the end of the buffer. Then it will 138 * gather from the beginning of the log and process until the current entry. 139 * 140 * Notes: 141 * Discovery logging will be disabled while while this routine dumps the log. 142 * 143 * Return Value: 144 * This routine returns the amount of bytes that were dumped into @buf and will 145 * not exceed @size. 146 **/ 147 static int 148 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 149 { 150 int i, index, len, enable; 151 uint32_t ms; 152 struct lpfc_debugfs_trc *dtp; 153 char *buffer; 154 155 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 156 if (!buffer) 157 return 0; 158 159 enable = lpfc_debugfs_enable; 160 lpfc_debugfs_enable = 0; 161 162 len = 0; 163 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 164 (lpfc_debugfs_max_disc_trc - 1); 165 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 166 dtp = vport->disc_trc + i; 167 if (!dtp->fmt) 168 continue; 169 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 170 snprintf(buffer, 171 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 172 dtp->seq_cnt, ms, dtp->fmt); 173 len += snprintf(buf+len, size-len, buffer, 174 dtp->data1, dtp->data2, dtp->data3); 175 } 176 for (i = 0; i < index; i++) { 177 dtp = vport->disc_trc + i; 178 if (!dtp->fmt) 179 continue; 180 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 181 snprintf(buffer, 182 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 183 dtp->seq_cnt, ms, dtp->fmt); 184 len += snprintf(buf+len, size-len, buffer, 185 dtp->data1, dtp->data2, dtp->data3); 186 } 187 188 lpfc_debugfs_enable = enable; 189 kfree(buffer); 190 191 return len; 192 } 193 194 /** 195 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 196 * @phba: The HBA to gather the log info from. 197 * @buf: The buffer to dump log into. 198 * @size: The maximum amount of data to process. 199 * 200 * Description: 201 * This routine gathers the lpfc slow ring debugfs data from the @phba and 202 * dumps it to @buf up to @size number of bytes. It will start at the next entry 203 * in the log and process the log until the end of the buffer. Then it will 204 * gather from the beginning of the log and process until the current entry. 205 * 206 * Notes: 207 * Slow ring logging will be disabled while while this routine dumps the log. 208 * 209 * Return Value: 210 * This routine returns the amount of bytes that were dumped into @buf and will 211 * not exceed @size. 212 **/ 213 static int 214 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 215 { 216 int i, index, len, enable; 217 uint32_t ms; 218 struct lpfc_debugfs_trc *dtp; 219 char *buffer; 220 221 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 222 if (!buffer) 223 return 0; 224 225 enable = lpfc_debugfs_enable; 226 lpfc_debugfs_enable = 0; 227 228 len = 0; 229 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 230 (lpfc_debugfs_max_slow_ring_trc - 1); 231 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 232 dtp = phba->slow_ring_trc + i; 233 if (!dtp->fmt) 234 continue; 235 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 236 snprintf(buffer, 237 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 238 dtp->seq_cnt, ms, dtp->fmt); 239 len += snprintf(buf+len, size-len, buffer, 240 dtp->data1, dtp->data2, dtp->data3); 241 } 242 for (i = 0; i < index; i++) { 243 dtp = phba->slow_ring_trc + i; 244 if (!dtp->fmt) 245 continue; 246 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 247 snprintf(buffer, 248 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 249 dtp->seq_cnt, ms, dtp->fmt); 250 len += snprintf(buf+len, size-len, buffer, 251 dtp->data1, dtp->data2, dtp->data3); 252 } 253 254 lpfc_debugfs_enable = enable; 255 kfree(buffer); 256 257 return len; 258 } 259 260 static int lpfc_debugfs_last_hbq = -1; 261 262 /** 263 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 264 * @phba: The HBA to gather host buffer info from. 265 * @buf: The buffer to dump log into. 266 * @size: The maximum amount of data to process. 267 * 268 * Description: 269 * This routine dumps the host buffer queue info from the @phba to @buf up to 270 * @size number of bytes. A header that describes the current hbq state will be 271 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 272 * until @size bytes have been dumped or all the hbq info has been dumped. 273 * 274 * Notes: 275 * This routine will rotate through each configured HBQ each time called. 276 * 277 * Return Value: 278 * This routine returns the amount of bytes that were dumped into @buf and will 279 * not exceed @size. 280 **/ 281 static int 282 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 283 { 284 int len = 0; 285 int i, j, found, posted, low; 286 uint32_t phys, raw_index, getidx; 287 struct lpfc_hbq_init *hip; 288 struct hbq_s *hbqs; 289 struct lpfc_hbq_entry *hbqe; 290 struct lpfc_dmabuf *d_buf; 291 struct hbq_dmabuf *hbq_buf; 292 293 if (phba->sli_rev != 3) 294 return 0; 295 296 spin_lock_irq(&phba->hbalock); 297 298 /* toggle between multiple hbqs, if any */ 299 i = lpfc_sli_hbq_count(); 300 if (i > 1) { 301 lpfc_debugfs_last_hbq++; 302 if (lpfc_debugfs_last_hbq >= i) 303 lpfc_debugfs_last_hbq = 0; 304 } 305 else 306 lpfc_debugfs_last_hbq = 0; 307 308 i = lpfc_debugfs_last_hbq; 309 310 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); 311 312 hbqs = &phba->hbqs[i]; 313 posted = 0; 314 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 315 posted++; 316 317 hip = lpfc_hbq_defs[i]; 318 len += snprintf(buf+len, size-len, 319 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 320 hip->hbq_index, hip->profile, hip->rn, 321 hip->buffer_count, hip->init_count, hip->add_count, posted); 322 323 raw_index = phba->hbq_get[i]; 324 getidx = le32_to_cpu(raw_index); 325 len += snprintf(buf+len, size-len, 326 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 327 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 328 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 329 330 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 331 for (j=0; j<hbqs->entry_count; j++) { 332 len += snprintf(buf+len, size-len, 333 "%03d: %08x %04x %05x ", j, 334 le32_to_cpu(hbqe->bde.addrLow), 335 le32_to_cpu(hbqe->bde.tus.w), 336 le32_to_cpu(hbqe->buffer_tag)); 337 i = 0; 338 found = 0; 339 340 /* First calculate if slot has an associated posted buffer */ 341 low = hbqs->hbqPutIdx - posted; 342 if (low >= 0) { 343 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 344 len += snprintf(buf+len, size-len, "Unused\n"); 345 goto skipit; 346 } 347 } 348 else { 349 if ((j >= hbqs->hbqPutIdx) && 350 (j < (hbqs->entry_count+low))) { 351 len += snprintf(buf+len, size-len, "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 += snprintf(buf+len, size-len, 362 "Buf%d: %p %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 += snprintf(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_hba_slim_off; 382 383 /** 384 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 385 * @phba: The HBA to gather SLIM 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 current contents of HBA SLIM for the HBA associated 391 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 392 * 393 * Notes: 394 * This routine will only dump up to 1024 bytes of data each time called and 395 * should be called multiple times to dump the entire HBA SLIM. 396 * 397 * Return Value: 398 * This routine returns the amount of bytes that were dumped into @buf and will 399 * not exceed @size. 400 **/ 401 static int 402 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 403 { 404 int len = 0; 405 int i, off; 406 uint32_t *ptr; 407 char *buffer; 408 409 buffer = kmalloc(1024, GFP_KERNEL); 410 if (!buffer) 411 return 0; 412 413 off = 0; 414 spin_lock_irq(&phba->hbalock); 415 416 len += snprintf(buf+len, size-len, "HBA SLIM\n"); 417 lpfc_memcpy_from_slim(buffer, 418 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 419 420 ptr = (uint32_t *)&buffer[0]; 421 off = lpfc_debugfs_last_hba_slim_off; 422 423 /* Set it up for the next time */ 424 lpfc_debugfs_last_hba_slim_off += 1024; 425 if (lpfc_debugfs_last_hba_slim_off >= 4096) 426 lpfc_debugfs_last_hba_slim_off = 0; 427 428 i = 1024; 429 while (i > 0) { 430 len += snprintf(buf+len, size-len, 431 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 432 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 433 *(ptr+5), *(ptr+6), *(ptr+7)); 434 ptr += 8; 435 i -= (8 * sizeof(uint32_t)); 436 off += (8 * sizeof(uint32_t)); 437 } 438 439 spin_unlock_irq(&phba->hbalock); 440 kfree(buffer); 441 442 return len; 443 } 444 445 /** 446 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 447 * @phba: The HBA to gather Host SLIM info from. 448 * @buf: The buffer to dump log into. 449 * @size: The maximum amount of data to process. 450 * 451 * Description: 452 * This routine dumps the current contents of host SLIM for the host associated 453 * with @phba to @buf up to @size bytes of data. The dump will contain the 454 * Mailbox, PCB, Rings, and Registers that are located in host memory. 455 * 456 * Return Value: 457 * This routine returns the amount of bytes that were dumped into @buf and will 458 * not exceed @size. 459 **/ 460 static int 461 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 462 { 463 int len = 0; 464 int i, off; 465 uint32_t word0, word1, word2, word3; 466 uint32_t *ptr; 467 struct lpfc_pgp *pgpp; 468 struct lpfc_sli *psli = &phba->sli; 469 struct lpfc_sli_ring *pring; 470 471 off = 0; 472 spin_lock_irq(&phba->hbalock); 473 474 len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); 475 ptr = (uint32_t *)phba->slim2p.virt; 476 i = sizeof(MAILBOX_t); 477 while (i > 0) { 478 len += snprintf(buf+len, size-len, 479 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 480 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 481 *(ptr+5), *(ptr+6), *(ptr+7)); 482 ptr += 8; 483 i -= (8 * sizeof(uint32_t)); 484 off += (8 * sizeof(uint32_t)); 485 } 486 487 len += snprintf(buf+len, size-len, "SLIM PCB\n"); 488 ptr = (uint32_t *)phba->pcb; 489 i = sizeof(PCB_t); 490 while (i > 0) { 491 len += snprintf(buf+len, size-len, 492 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 493 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 494 *(ptr+5), *(ptr+6), *(ptr+7)); 495 ptr += 8; 496 i -= (8 * sizeof(uint32_t)); 497 off += (8 * sizeof(uint32_t)); 498 } 499 500 if (phba->sli_rev <= LPFC_SLI_REV3) { 501 for (i = 0; i < 4; i++) { 502 pgpp = &phba->port_gp[i]; 503 pring = &psli->sli3_ring[i]; 504 len += snprintf(buf+len, size-len, 505 "Ring %d: CMD GetInx:%d " 506 "(Max:%d Next:%d " 507 "Local:%d flg:x%x) " 508 "RSP PutInx:%d Max:%d\n", 509 i, pgpp->cmdGetInx, 510 pring->sli.sli3.numCiocb, 511 pring->sli.sli3.next_cmdidx, 512 pring->sli.sli3.local_getidx, 513 pring->flag, pgpp->rspPutInx, 514 pring->sli.sli3.numRiocb); 515 } 516 517 word0 = readl(phba->HAregaddr); 518 word1 = readl(phba->CAregaddr); 519 word2 = readl(phba->HSregaddr); 520 word3 = readl(phba->HCregaddr); 521 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 522 "HC:%08x\n", word0, word1, word2, word3); 523 } 524 spin_unlock_irq(&phba->hbalock); 525 return len; 526 } 527 528 /** 529 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 530 * @vport: The vport to gather target node info from. 531 * @buf: The buffer to dump log into. 532 * @size: The maximum amount of data to process. 533 * 534 * Description: 535 * This routine dumps the current target node list associated with @vport to 536 * @buf up to @size bytes of data. Each node entry in the dump will contain a 537 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 538 * 539 * Return Value: 540 * This routine returns the amount of bytes that were dumped into @buf and will 541 * not exceed @size. 542 **/ 543 static int 544 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 545 { 546 int len = 0; 547 int cnt; 548 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 549 struct lpfc_hba *phba = vport->phba; 550 struct lpfc_nodelist *ndlp; 551 unsigned char *statep; 552 struct nvme_fc_local_port *localport; 553 struct lpfc_nvmet_tgtport *tgtp; 554 struct nvme_fc_remote_port *nrport; 555 556 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 557 558 len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 559 spin_lock_irq(shost->host_lock); 560 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 561 if (!cnt) { 562 len += snprintf(buf+len, size-len, 563 "Missing Nodelist Entries\n"); 564 break; 565 } 566 cnt--; 567 switch (ndlp->nlp_state) { 568 case NLP_STE_UNUSED_NODE: 569 statep = "UNUSED"; 570 break; 571 case NLP_STE_PLOGI_ISSUE: 572 statep = "PLOGI "; 573 break; 574 case NLP_STE_ADISC_ISSUE: 575 statep = "ADISC "; 576 break; 577 case NLP_STE_REG_LOGIN_ISSUE: 578 statep = "REGLOG"; 579 break; 580 case NLP_STE_PRLI_ISSUE: 581 statep = "PRLI "; 582 break; 583 case NLP_STE_LOGO_ISSUE: 584 statep = "LOGO "; 585 break; 586 case NLP_STE_UNMAPPED_NODE: 587 statep = "UNMAP "; 588 break; 589 case NLP_STE_MAPPED_NODE: 590 statep = "MAPPED"; 591 break; 592 case NLP_STE_NPR_NODE: 593 statep = "NPR "; 594 break; 595 default: 596 statep = "UNKNOWN"; 597 } 598 len += snprintf(buf+len, size-len, "%s DID:x%06x ", 599 statep, ndlp->nlp_DID); 600 len += snprintf(buf+len, size-len, 601 "WWPN x%llx ", 602 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 603 len += snprintf(buf+len, size-len, 604 "WWNN x%llx ", 605 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 606 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 607 len += snprintf(buf+len, size-len, "RPI:%03d ", 608 ndlp->nlp_rpi); 609 else 610 len += snprintf(buf+len, size-len, "RPI:none "); 611 len += snprintf(buf+len, size-len, "flag:x%08x ", 612 ndlp->nlp_flag); 613 if (!ndlp->nlp_type) 614 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); 615 if (ndlp->nlp_type & NLP_FC_NODE) 616 len += snprintf(buf+len, size-len, "FC_NODE "); 617 if (ndlp->nlp_type & NLP_FABRIC) 618 len += snprintf(buf+len, size-len, "FABRIC "); 619 if (ndlp->nlp_type & NLP_FCP_TARGET) 620 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", 621 ndlp->nlp_sid); 622 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 623 len += snprintf(buf+len, size-len, "FCP_INITIATOR "); 624 if (ndlp->nlp_type & NLP_NVME_TARGET) 625 len += snprintf(buf + len, 626 size - len, "NVME_TGT sid:%d ", 627 NLP_NO_SID); 628 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 629 len += snprintf(buf + len, 630 size - len, "NVME_INITIATOR "); 631 len += snprintf(buf+len, size-len, "usgmap:%x ", 632 ndlp->nlp_usg_map); 633 len += snprintf(buf+len, size-len, "refcnt:%x", 634 kref_read(&ndlp->kref)); 635 len += snprintf(buf+len, size-len, "\n"); 636 } 637 spin_unlock_irq(shost->host_lock); 638 639 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 640 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 641 len += snprintf(buf + len, size - len, 642 "\nNVME Targetport Entry ...\n"); 643 644 /* Port state is only one of two values for now. */ 645 if (phba->targetport->port_id) 646 statep = "REGISTERED"; 647 else 648 statep = "INIT"; 649 len += snprintf(buf + len, size - len, 650 "TGT WWNN x%llx WWPN x%llx State %s\n", 651 wwn_to_u64(vport->fc_nodename.u.wwn), 652 wwn_to_u64(vport->fc_portname.u.wwn), 653 statep); 654 len += snprintf(buf + len, size - len, 655 " Targetport DID x%06x\n", 656 phba->targetport->port_id); 657 goto out_exit; 658 } 659 660 len += snprintf(buf + len, size - len, 661 "\nNVME Lport/Rport Entries ...\n"); 662 663 localport = vport->localport; 664 if (!localport) 665 goto out_exit; 666 667 spin_lock_irq(shost->host_lock); 668 669 /* Port state is only one of two values for now. */ 670 if (localport->port_id) 671 statep = "ONLINE"; 672 else 673 statep = "UNKNOWN "; 674 675 len += snprintf(buf + len, size - len, 676 "Lport DID x%06x PortState %s\n", 677 localport->port_id, statep); 678 679 len += snprintf(buf + len, size - len, "\tRport List:\n"); 680 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 681 /* local short-hand pointer. */ 682 if (!ndlp->nrport) 683 continue; 684 685 nrport = ndlp->nrport->remoteport; 686 687 /* Port state is only one of two values for now. */ 688 switch (nrport->port_state) { 689 case FC_OBJSTATE_ONLINE: 690 statep = "ONLINE"; 691 break; 692 case FC_OBJSTATE_UNKNOWN: 693 statep = "UNKNOWN "; 694 break; 695 default: 696 statep = "UNSUPPORTED"; 697 break; 698 } 699 700 /* Tab in to show lport ownership. */ 701 len += snprintf(buf + len, size - len, 702 "\t%s Port ID:x%06x ", 703 statep, nrport->port_id); 704 len += snprintf(buf + len, size - len, "WWPN x%llx ", 705 nrport->port_name); 706 len += snprintf(buf + len, size - len, "WWNN x%llx ", 707 nrport->node_name); 708 709 /* An NVME rport can have multiple roles. */ 710 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 711 len += snprintf(buf + len, size - len, 712 "INITIATOR "); 713 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 714 len += snprintf(buf + len, size - len, 715 "TARGET "); 716 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 717 len += snprintf(buf + len, size - len, 718 "DISCSRVC "); 719 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 720 FC_PORT_ROLE_NVME_TARGET | 721 FC_PORT_ROLE_NVME_DISCOVERY)) 722 len += snprintf(buf + len, size - len, 723 "UNKNOWN ROLE x%x", 724 nrport->port_role); 725 /* Terminate the string. */ 726 len += snprintf(buf + len, size - len, "\n"); 727 } 728 729 spin_unlock_irq(shost->host_lock); 730 out_exit: 731 return len; 732 } 733 734 /** 735 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 736 * @vport: The vport to gather target node info from. 737 * @buf: The buffer to dump log into. 738 * @size: The maximum amount of data to process. 739 * 740 * Description: 741 * This routine dumps the NVME statistics associated with @vport 742 * 743 * Return Value: 744 * This routine returns the amount of bytes that were dumped into @buf and will 745 * not exceed @size. 746 **/ 747 static int 748 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 749 { 750 struct lpfc_hba *phba = vport->phba; 751 struct lpfc_nvmet_tgtport *tgtp; 752 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp; 753 uint64_t tot, data1, data2, data3; 754 int len = 0; 755 int cnt; 756 757 if (phba->nvmet_support) { 758 if (!phba->targetport) 759 return len; 760 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 761 len += snprintf(buf + len, size - len, 762 "\nNVME Targetport Statistics\n"); 763 764 len += snprintf(buf + len, size - len, 765 "LS: Rcv %08x Drop %08x Abort %08x\n", 766 atomic_read(&tgtp->rcv_ls_req_in), 767 atomic_read(&tgtp->rcv_ls_req_drop), 768 atomic_read(&tgtp->xmt_ls_abort)); 769 if (atomic_read(&tgtp->rcv_ls_req_in) != 770 atomic_read(&tgtp->rcv_ls_req_out)) { 771 len += snprintf(buf + len, size - len, 772 "Rcv LS: in %08x != out %08x\n", 773 atomic_read(&tgtp->rcv_ls_req_in), 774 atomic_read(&tgtp->rcv_ls_req_out)); 775 } 776 777 len += snprintf(buf + len, size - len, 778 "LS: Xmt %08x Drop %08x Cmpl %08x Err %08x\n", 779 atomic_read(&tgtp->xmt_ls_rsp), 780 atomic_read(&tgtp->xmt_ls_drop), 781 atomic_read(&tgtp->xmt_ls_rsp_cmpl), 782 atomic_read(&tgtp->xmt_ls_rsp_error)); 783 784 len += snprintf(buf + len, size - len, 785 "FCP: Rcv %08x Defer %08x Release %08x " 786 "Drop %08x\n", 787 atomic_read(&tgtp->rcv_fcp_cmd_in), 788 atomic_read(&tgtp->rcv_fcp_cmd_defer), 789 atomic_read(&tgtp->xmt_fcp_release), 790 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 791 792 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 793 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 794 len += snprintf(buf + len, size - len, 795 "Rcv FCP: in %08x != out %08x\n", 796 atomic_read(&tgtp->rcv_fcp_cmd_in), 797 atomic_read(&tgtp->rcv_fcp_cmd_out)); 798 } 799 800 len += snprintf(buf + len, size - len, 801 "FCP Rsp: read %08x readrsp %08x " 802 "write %08x rsp %08x\n", 803 atomic_read(&tgtp->xmt_fcp_read), 804 atomic_read(&tgtp->xmt_fcp_read_rsp), 805 atomic_read(&tgtp->xmt_fcp_write), 806 atomic_read(&tgtp->xmt_fcp_rsp)); 807 808 len += snprintf(buf + len, size - len, 809 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 810 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 811 atomic_read(&tgtp->xmt_fcp_rsp_error), 812 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 813 814 len += snprintf(buf + len, size - len, 815 "ABORT: Xmt %08x Cmpl %08x\n", 816 atomic_read(&tgtp->xmt_fcp_abort), 817 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 818 819 len += snprintf(buf + len, size - len, 820 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 821 atomic_read(&tgtp->xmt_abort_sol), 822 atomic_read(&tgtp->xmt_abort_unsol), 823 atomic_read(&tgtp->xmt_abort_rsp), 824 atomic_read(&tgtp->xmt_abort_rsp_error)); 825 826 len += snprintf(buf + len, size - len, "\n"); 827 828 cnt = 0; 829 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 830 list_for_each_entry_safe(ctxp, next_ctxp, 831 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 832 list) { 833 cnt++; 834 } 835 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 836 if (cnt) { 837 len += snprintf(buf + len, size - len, 838 "ABORT: %d ctx entries\n", cnt); 839 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 840 list_for_each_entry_safe(ctxp, next_ctxp, 841 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 842 list) { 843 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 844 break; 845 len += snprintf(buf + len, size - len, 846 "Entry: oxid %x state %x " 847 "flag %x\n", 848 ctxp->oxid, ctxp->state, 849 ctxp->flag); 850 } 851 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 852 } 853 854 /* Calculate outstanding IOs */ 855 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 856 tot += atomic_read(&tgtp->xmt_fcp_release); 857 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 858 859 len += snprintf(buf + len, size - len, 860 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 861 "CTX Outstanding %08llx\n", 862 phba->sli4_hba.nvmet_xri_cnt, 863 phba->sli4_hba.nvmet_io_wait_cnt, 864 phba->sli4_hba.nvmet_io_wait_total, 865 tot); 866 } else { 867 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 868 return len; 869 870 len += snprintf(buf + len, size - len, 871 "\nNVME Lport Statistics\n"); 872 873 len += snprintf(buf + len, size - len, 874 "LS: Xmt %016x Cmpl %016x\n", 875 atomic_read(&phba->fc4NvmeLsRequests), 876 atomic_read(&phba->fc4NvmeLsCmpls)); 877 878 tot = atomic_read(&phba->fc4NvmeIoCmpls); 879 data1 = atomic_read(&phba->fc4NvmeInputRequests); 880 data2 = atomic_read(&phba->fc4NvmeOutputRequests); 881 data3 = atomic_read(&phba->fc4NvmeControlRequests); 882 883 len += snprintf(buf + len, size - len, 884 "FCP: Rd %016llx Wr %016llx IO %016llx\n", 885 data1, data2, data3); 886 887 len += snprintf(buf + len, size - len, 888 " Cmpl %016llx Outstanding %016llx\n", 889 tot, (data1 + data2 + data3) - tot); 890 } 891 892 return len; 893 } 894 895 896 /** 897 * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer 898 * @vport: The vport to gather target node info from. 899 * @buf: The buffer to dump log into. 900 * @size: The maximum amount of data to process. 901 * 902 * Description: 903 * This routine dumps the NVME statistics associated with @vport 904 * 905 * Return Value: 906 * This routine returns the amount of bytes that were dumped into @buf and will 907 * not exceed @size. 908 **/ 909 static int 910 lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size) 911 { 912 struct lpfc_hba *phba = vport->phba; 913 int len = 0; 914 915 if (phba->nvmet_support == 0) { 916 /* NVME Initiator */ 917 len += snprintf(buf + len, PAGE_SIZE - len, 918 "ktime %s: Total Samples: %lld\n", 919 (phba->ktime_on ? "Enabled" : "Disabled"), 920 phba->ktime_data_samples); 921 if (phba->ktime_data_samples == 0) 922 return len; 923 924 len += snprintf( 925 buf + len, PAGE_SIZE - len, 926 "Segment 1: Last NVME Cmd cmpl " 927 "done -to- Start of next NVME cnd (in driver)\n"); 928 len += snprintf( 929 buf + len, PAGE_SIZE - len, 930 "avg:%08lld min:%08lld max %08lld\n", 931 div_u64(phba->ktime_seg1_total, 932 phba->ktime_data_samples), 933 phba->ktime_seg1_min, 934 phba->ktime_seg1_max); 935 len += snprintf( 936 buf + len, PAGE_SIZE - len, 937 "Segment 2: Driver start of NVME cmd " 938 "-to- Firmware WQ doorbell\n"); 939 len += snprintf( 940 buf + len, PAGE_SIZE - len, 941 "avg:%08lld min:%08lld max %08lld\n", 942 div_u64(phba->ktime_seg2_total, 943 phba->ktime_data_samples), 944 phba->ktime_seg2_min, 945 phba->ktime_seg2_max); 946 len += snprintf( 947 buf + len, PAGE_SIZE - len, 948 "Segment 3: Firmware WQ doorbell -to- " 949 "MSI-X ISR cmpl\n"); 950 len += snprintf( 951 buf + len, PAGE_SIZE - len, 952 "avg:%08lld min:%08lld max %08lld\n", 953 div_u64(phba->ktime_seg3_total, 954 phba->ktime_data_samples), 955 phba->ktime_seg3_min, 956 phba->ktime_seg3_max); 957 len += snprintf( 958 buf + len, PAGE_SIZE - len, 959 "Segment 4: MSI-X ISR cmpl -to- " 960 "NVME cmpl done\n"); 961 len += snprintf( 962 buf + len, PAGE_SIZE - len, 963 "avg:%08lld min:%08lld max %08lld\n", 964 div_u64(phba->ktime_seg4_total, 965 phba->ktime_data_samples), 966 phba->ktime_seg4_min, 967 phba->ktime_seg4_max); 968 len += snprintf( 969 buf + len, PAGE_SIZE - len, 970 "Total IO avg time: %08lld\n", 971 div_u64(phba->ktime_seg1_total + 972 phba->ktime_seg2_total + 973 phba->ktime_seg3_total + 974 phba->ktime_seg4_total, 975 phba->ktime_data_samples)); 976 return len; 977 } 978 979 /* NVME Target */ 980 len += snprintf(buf + len, PAGE_SIZE-len, 981 "ktime %s: Total Samples: %lld %lld\n", 982 (phba->ktime_on ? "Enabled" : "Disabled"), 983 phba->ktime_data_samples, 984 phba->ktime_status_samples); 985 if (phba->ktime_data_samples == 0) 986 return len; 987 988 len += snprintf(buf + len, PAGE_SIZE-len, 989 "Segment 1: MSI-X ISR Rcv cmd -to- " 990 "cmd pass to NVME Layer\n"); 991 len += snprintf(buf + len, PAGE_SIZE-len, 992 "avg:%08lld min:%08lld max %08lld\n", 993 div_u64(phba->ktime_seg1_total, 994 phba->ktime_data_samples), 995 phba->ktime_seg1_min, 996 phba->ktime_seg1_max); 997 len += snprintf(buf + len, PAGE_SIZE-len, 998 "Segment 2: cmd pass to NVME Layer- " 999 "-to- Driver rcv cmd OP (action)\n"); 1000 len += snprintf(buf + len, PAGE_SIZE-len, 1001 "avg:%08lld min:%08lld max %08lld\n", 1002 div_u64(phba->ktime_seg2_total, 1003 phba->ktime_data_samples), 1004 phba->ktime_seg2_min, 1005 phba->ktime_seg2_max); 1006 len += snprintf(buf + len, PAGE_SIZE-len, 1007 "Segment 3: Driver rcv cmd OP -to- " 1008 "Firmware WQ doorbell: cmd\n"); 1009 len += snprintf(buf + len, PAGE_SIZE-len, 1010 "avg:%08lld min:%08lld max %08lld\n", 1011 div_u64(phba->ktime_seg3_total, 1012 phba->ktime_data_samples), 1013 phba->ktime_seg3_min, 1014 phba->ktime_seg3_max); 1015 len += snprintf(buf + len, PAGE_SIZE-len, 1016 "Segment 4: Firmware WQ doorbell: cmd " 1017 "-to- MSI-X ISR for cmd cmpl\n"); 1018 len += snprintf(buf + len, PAGE_SIZE-len, 1019 "avg:%08lld min:%08lld max %08lld\n", 1020 div_u64(phba->ktime_seg4_total, 1021 phba->ktime_data_samples), 1022 phba->ktime_seg4_min, 1023 phba->ktime_seg4_max); 1024 len += snprintf(buf + len, PAGE_SIZE-len, 1025 "Segment 5: MSI-X ISR for cmd cmpl " 1026 "-to- NVME layer passed cmd done\n"); 1027 len += snprintf(buf + len, PAGE_SIZE-len, 1028 "avg:%08lld min:%08lld max %08lld\n", 1029 div_u64(phba->ktime_seg5_total, 1030 phba->ktime_data_samples), 1031 phba->ktime_seg5_min, 1032 phba->ktime_seg5_max); 1033 1034 if (phba->ktime_status_samples == 0) { 1035 len += snprintf(buf + len, PAGE_SIZE-len, 1036 "Total: cmd received by MSI-X ISR " 1037 "-to- cmd completed on wire\n"); 1038 len += snprintf(buf + len, PAGE_SIZE-len, 1039 "avg:%08lld min:%08lld " 1040 "max %08lld\n", 1041 div_u64(phba->ktime_seg10_total, 1042 phba->ktime_data_samples), 1043 phba->ktime_seg10_min, 1044 phba->ktime_seg10_max); 1045 return len; 1046 } 1047 1048 len += snprintf(buf + len, PAGE_SIZE-len, 1049 "Segment 6: NVME layer passed cmd done " 1050 "-to- Driver rcv rsp status OP\n"); 1051 len += snprintf(buf + len, PAGE_SIZE-len, 1052 "avg:%08lld min:%08lld max %08lld\n", 1053 div_u64(phba->ktime_seg6_total, 1054 phba->ktime_status_samples), 1055 phba->ktime_seg6_min, 1056 phba->ktime_seg6_max); 1057 len += snprintf(buf + len, PAGE_SIZE-len, 1058 "Segment 7: Driver rcv rsp status OP " 1059 "-to- Firmware WQ doorbell: status\n"); 1060 len += snprintf(buf + len, PAGE_SIZE-len, 1061 "avg:%08lld min:%08lld max %08lld\n", 1062 div_u64(phba->ktime_seg7_total, 1063 phba->ktime_status_samples), 1064 phba->ktime_seg7_min, 1065 phba->ktime_seg7_max); 1066 len += snprintf(buf + len, PAGE_SIZE-len, 1067 "Segment 8: Firmware WQ doorbell: status" 1068 " -to- MSI-X ISR for status cmpl\n"); 1069 len += snprintf(buf + len, PAGE_SIZE-len, 1070 "avg:%08lld min:%08lld max %08lld\n", 1071 div_u64(phba->ktime_seg8_total, 1072 phba->ktime_status_samples), 1073 phba->ktime_seg8_min, 1074 phba->ktime_seg8_max); 1075 len += snprintf(buf + len, PAGE_SIZE-len, 1076 "Segment 9: MSI-X ISR for status cmpl " 1077 "-to- NVME layer passed status done\n"); 1078 len += snprintf(buf + len, PAGE_SIZE-len, 1079 "avg:%08lld min:%08lld max %08lld\n", 1080 div_u64(phba->ktime_seg9_total, 1081 phba->ktime_status_samples), 1082 phba->ktime_seg9_min, 1083 phba->ktime_seg9_max); 1084 len += snprintf(buf + len, PAGE_SIZE-len, 1085 "Total: cmd received by MSI-X ISR -to- " 1086 "cmd completed on wire\n"); 1087 len += snprintf(buf + len, PAGE_SIZE-len, 1088 "avg:%08lld min:%08lld max %08lld\n", 1089 div_u64(phba->ktime_seg10_total, 1090 phba->ktime_status_samples), 1091 phba->ktime_seg10_min, 1092 phba->ktime_seg10_max); 1093 return len; 1094 } 1095 1096 /** 1097 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1098 * @phba: The phba to gather target node info from. 1099 * @buf: The buffer to dump log into. 1100 * @size: The maximum amount of data to process. 1101 * 1102 * Description: 1103 * This routine dumps the NVME IO trace associated with @phba 1104 * 1105 * Return Value: 1106 * This routine returns the amount of bytes that were dumped into @buf and will 1107 * not exceed @size. 1108 **/ 1109 static int 1110 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1111 { 1112 struct lpfc_debugfs_nvmeio_trc *dtp; 1113 int i, state, index, skip; 1114 int len = 0; 1115 1116 state = phba->nvmeio_trc_on; 1117 1118 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1119 (phba->nvmeio_trc_size - 1); 1120 skip = phba->nvmeio_trc_output_idx; 1121 1122 len += snprintf(buf + len, size - len, 1123 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1124 (phba->nvmet_support ? "NVME" : "NVMET"), 1125 (state ? "Enabled" : "Disabled"), 1126 index, skip, phba->nvmeio_trc_size); 1127 1128 if (!phba->nvmeio_trc || state) 1129 return len; 1130 1131 /* trace MUST bhe off to continue */ 1132 1133 for (i = index; i < phba->nvmeio_trc_size; i++) { 1134 if (skip) { 1135 skip--; 1136 continue; 1137 } 1138 dtp = phba->nvmeio_trc + i; 1139 phba->nvmeio_trc_output_idx++; 1140 1141 if (!dtp->fmt) 1142 continue; 1143 1144 len += snprintf(buf + len, size - len, dtp->fmt, 1145 dtp->data1, dtp->data2, dtp->data3); 1146 1147 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1148 phba->nvmeio_trc_output_idx = 0; 1149 len += snprintf(buf + len, size - len, 1150 "Trace Complete\n"); 1151 goto out; 1152 } 1153 1154 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1155 len += snprintf(buf + len, size - len, 1156 "Trace Continue (%d of %d)\n", 1157 phba->nvmeio_trc_output_idx, 1158 phba->nvmeio_trc_size); 1159 goto out; 1160 } 1161 } 1162 for (i = 0; i < index; i++) { 1163 if (skip) { 1164 skip--; 1165 continue; 1166 } 1167 dtp = phba->nvmeio_trc + i; 1168 phba->nvmeio_trc_output_idx++; 1169 1170 if (!dtp->fmt) 1171 continue; 1172 1173 len += snprintf(buf + len, size - len, dtp->fmt, 1174 dtp->data1, dtp->data2, dtp->data3); 1175 1176 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1177 phba->nvmeio_trc_output_idx = 0; 1178 len += snprintf(buf + len, size - len, 1179 "Trace Complete\n"); 1180 goto out; 1181 } 1182 1183 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1184 len += snprintf(buf + len, size - len, 1185 "Trace Continue (%d of %d)\n", 1186 phba->nvmeio_trc_output_idx, 1187 phba->nvmeio_trc_size); 1188 goto out; 1189 } 1190 } 1191 1192 len += snprintf(buf + len, size - len, 1193 "Trace Done\n"); 1194 out: 1195 return len; 1196 } 1197 1198 /** 1199 * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer 1200 * @vport: The vport to gather target node info from. 1201 * @buf: The buffer to dump log into. 1202 * @size: The maximum amount of data to process. 1203 * 1204 * Description: 1205 * This routine dumps the NVME statistics associated with @vport 1206 * 1207 * Return Value: 1208 * This routine returns the amount of bytes that were dumped into @buf and will 1209 * not exceed @size. 1210 **/ 1211 static int 1212 lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size) 1213 { 1214 struct lpfc_hba *phba = vport->phba; 1215 int i; 1216 int len = 0; 1217 uint32_t tot_xmt = 0; 1218 uint32_t tot_rcv = 0; 1219 uint32_t tot_cmpl = 0; 1220 uint32_t tot_ccmpl = 0; 1221 1222 if (phba->nvmet_support == 0) { 1223 /* NVME Initiator */ 1224 len += snprintf(buf + len, PAGE_SIZE - len, 1225 "CPUcheck %s\n", 1226 (phba->cpucheck_on & LPFC_CHECK_NVME_IO ? 1227 "Enabled" : "Disabled")); 1228 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1229 if (i >= LPFC_CHECK_CPU_CNT) 1230 break; 1231 len += snprintf(buf + len, PAGE_SIZE - len, 1232 "%02d: xmit x%08x cmpl x%08x\n", 1233 i, phba->cpucheck_xmt_io[i], 1234 phba->cpucheck_cmpl_io[i]); 1235 tot_xmt += phba->cpucheck_xmt_io[i]; 1236 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1237 } 1238 len += snprintf(buf + len, PAGE_SIZE - len, 1239 "tot:xmit x%08x cmpl x%08x\n", 1240 tot_xmt, tot_cmpl); 1241 return len; 1242 } 1243 1244 /* NVME Target */ 1245 len += snprintf(buf + len, PAGE_SIZE - len, 1246 "CPUcheck %s ", 1247 (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ? 1248 "IO Enabled - " : "IO Disabled - ")); 1249 len += snprintf(buf + len, PAGE_SIZE - len, 1250 "%s\n", 1251 (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ? 1252 "Rcv Enabled\n" : "Rcv Disabled\n")); 1253 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1254 if (i >= LPFC_CHECK_CPU_CNT) 1255 break; 1256 len += snprintf(buf + len, PAGE_SIZE - len, 1257 "%02d: xmit x%08x ccmpl x%08x " 1258 "cmpl x%08x rcv x%08x\n", 1259 i, phba->cpucheck_xmt_io[i], 1260 phba->cpucheck_ccmpl_io[i], 1261 phba->cpucheck_cmpl_io[i], 1262 phba->cpucheck_rcv_io[i]); 1263 tot_xmt += phba->cpucheck_xmt_io[i]; 1264 tot_rcv += phba->cpucheck_rcv_io[i]; 1265 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1266 tot_ccmpl += phba->cpucheck_ccmpl_io[i]; 1267 } 1268 len += snprintf(buf + len, PAGE_SIZE - len, 1269 "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n", 1270 tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv); 1271 return len; 1272 } 1273 1274 #endif 1275 1276 /** 1277 * lpfc_debugfs_disc_trc - Store discovery trace log 1278 * @vport: The vport to associate this trace string with for retrieval. 1279 * @mask: Log entry classification. 1280 * @fmt: Format string to be displayed when dumping the log. 1281 * @data1: 1st data parameter to be applied to @fmt. 1282 * @data2: 2nd data parameter to be applied to @fmt. 1283 * @data3: 3rd data parameter to be applied to @fmt. 1284 * 1285 * Description: 1286 * This routine is used by the driver code to add a debugfs log entry to the 1287 * discovery trace buffer associated with @vport. Only entries with a @mask that 1288 * match the current debugfs discovery mask will be saved. Entries that do not 1289 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1290 * printf when displaying the log. 1291 **/ 1292 inline void 1293 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1294 uint32_t data1, uint32_t data2, uint32_t data3) 1295 { 1296 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1297 struct lpfc_debugfs_trc *dtp; 1298 int index; 1299 1300 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1301 return; 1302 1303 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1304 !vport || !vport->disc_trc) 1305 return; 1306 1307 index = atomic_inc_return(&vport->disc_trc_cnt) & 1308 (lpfc_debugfs_max_disc_trc - 1); 1309 dtp = vport->disc_trc + index; 1310 dtp->fmt = fmt; 1311 dtp->data1 = data1; 1312 dtp->data2 = data2; 1313 dtp->data3 = data3; 1314 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1315 dtp->jif = jiffies; 1316 #endif 1317 return; 1318 } 1319 1320 /** 1321 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1322 * @phba: The phba to associate this trace string with for retrieval. 1323 * @fmt: Format string to be displayed when dumping the log. 1324 * @data1: 1st data parameter to be applied to @fmt. 1325 * @data2: 2nd data parameter to be applied to @fmt. 1326 * @data3: 3rd data parameter to be applied to @fmt. 1327 * 1328 * Description: 1329 * This routine is used by the driver code to add a debugfs log entry to the 1330 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1331 * @data3 are used like printf when displaying the log. 1332 **/ 1333 inline void 1334 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1335 uint32_t data1, uint32_t data2, uint32_t data3) 1336 { 1337 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1338 struct lpfc_debugfs_trc *dtp; 1339 int index; 1340 1341 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1342 !phba || !phba->slow_ring_trc) 1343 return; 1344 1345 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1346 (lpfc_debugfs_max_slow_ring_trc - 1); 1347 dtp = phba->slow_ring_trc + index; 1348 dtp->fmt = fmt; 1349 dtp->data1 = data1; 1350 dtp->data2 = data2; 1351 dtp->data3 = data3; 1352 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1353 dtp->jif = jiffies; 1354 #endif 1355 return; 1356 } 1357 1358 /** 1359 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1360 * @phba: The phba to associate this trace string with for retrieval. 1361 * @fmt: Format string to be displayed when dumping the log. 1362 * @data1: 1st data parameter to be applied to @fmt. 1363 * @data2: 2nd data parameter to be applied to @fmt. 1364 * @data3: 3rd data parameter to be applied to @fmt. 1365 * 1366 * Description: 1367 * This routine is used by the driver code to add a debugfs log entry to the 1368 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1369 * @data3 are used like printf when displaying the log. 1370 **/ 1371 inline void 1372 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1373 uint16_t data1, uint16_t data2, uint32_t data3) 1374 { 1375 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1376 struct lpfc_debugfs_nvmeio_trc *dtp; 1377 int index; 1378 1379 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1380 return; 1381 1382 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1383 (phba->nvmeio_trc_size - 1); 1384 dtp = phba->nvmeio_trc + index; 1385 dtp->fmt = fmt; 1386 dtp->data1 = data1; 1387 dtp->data2 = data2; 1388 dtp->data3 = data3; 1389 #endif 1390 } 1391 1392 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1393 /** 1394 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1395 * @inode: The inode pointer that contains a vport pointer. 1396 * @file: The file pointer to attach the log output. 1397 * 1398 * Description: 1399 * This routine is the entry point for the debugfs open file operation. It gets 1400 * the vport from the i_private field in @inode, allocates the necessary buffer 1401 * for the log, fills the buffer from the in-memory log for this vport, and then 1402 * returns a pointer to that log in the private_data field in @file. 1403 * 1404 * Returns: 1405 * This function returns zero if successful. On error it will return a negative 1406 * error value. 1407 **/ 1408 static int 1409 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1410 { 1411 struct lpfc_vport *vport = inode->i_private; 1412 struct lpfc_debug *debug; 1413 int size; 1414 int rc = -ENOMEM; 1415 1416 if (!lpfc_debugfs_max_disc_trc) { 1417 rc = -ENOSPC; 1418 goto out; 1419 } 1420 1421 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1422 if (!debug) 1423 goto out; 1424 1425 /* Round to page boundary */ 1426 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1427 size = PAGE_ALIGN(size); 1428 1429 debug->buffer = kmalloc(size, GFP_KERNEL); 1430 if (!debug->buffer) { 1431 kfree(debug); 1432 goto out; 1433 } 1434 1435 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1436 file->private_data = debug; 1437 1438 rc = 0; 1439 out: 1440 return rc; 1441 } 1442 1443 /** 1444 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1445 * @inode: The inode pointer that contains a vport pointer. 1446 * @file: The file pointer to attach the log output. 1447 * 1448 * Description: 1449 * This routine is the entry point for the debugfs open file operation. It gets 1450 * the vport from the i_private field in @inode, allocates the necessary buffer 1451 * for the log, fills the buffer from the in-memory log for this vport, and then 1452 * returns a pointer to that log in the private_data field in @file. 1453 * 1454 * Returns: 1455 * This function returns zero if successful. On error it will return a negative 1456 * error value. 1457 **/ 1458 static int 1459 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1460 { 1461 struct lpfc_hba *phba = inode->i_private; 1462 struct lpfc_debug *debug; 1463 int size; 1464 int rc = -ENOMEM; 1465 1466 if (!lpfc_debugfs_max_slow_ring_trc) { 1467 rc = -ENOSPC; 1468 goto out; 1469 } 1470 1471 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1472 if (!debug) 1473 goto out; 1474 1475 /* Round to page boundary */ 1476 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1477 size = PAGE_ALIGN(size); 1478 1479 debug->buffer = kmalloc(size, GFP_KERNEL); 1480 if (!debug->buffer) { 1481 kfree(debug); 1482 goto out; 1483 } 1484 1485 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 1486 file->private_data = debug; 1487 1488 rc = 0; 1489 out: 1490 return rc; 1491 } 1492 1493 /** 1494 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 1495 * @inode: The inode pointer that contains a vport pointer. 1496 * @file: The file pointer to attach the log output. 1497 * 1498 * Description: 1499 * This routine is the entry point for the debugfs open file operation. It gets 1500 * the vport from the i_private field in @inode, allocates the necessary buffer 1501 * for the log, fills the buffer from the in-memory log for this vport, and then 1502 * returns a pointer to that log in the private_data field in @file. 1503 * 1504 * Returns: 1505 * This function returns zero if successful. On error it will return a negative 1506 * error value. 1507 **/ 1508 static int 1509 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 1510 { 1511 struct lpfc_hba *phba = inode->i_private; 1512 struct lpfc_debug *debug; 1513 int rc = -ENOMEM; 1514 1515 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1516 if (!debug) 1517 goto out; 1518 1519 /* Round to page boundary */ 1520 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 1521 if (!debug->buffer) { 1522 kfree(debug); 1523 goto out; 1524 } 1525 1526 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 1527 LPFC_HBQINFO_SIZE); 1528 file->private_data = debug; 1529 1530 rc = 0; 1531 out: 1532 return rc; 1533 } 1534 1535 /** 1536 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 1537 * @inode: The inode pointer that contains a vport pointer. 1538 * @file: The file pointer to attach the log output. 1539 * 1540 * Description: 1541 * This routine is the entry point for the debugfs open file operation. It gets 1542 * the vport from the i_private field in @inode, allocates the necessary buffer 1543 * for the log, fills the buffer from the in-memory log for this vport, and then 1544 * returns a pointer to that log in the private_data field in @file. 1545 * 1546 * Returns: 1547 * This function returns zero if successful. On error it will return a negative 1548 * error value. 1549 **/ 1550 static int 1551 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 1552 { 1553 struct lpfc_hba *phba = inode->i_private; 1554 struct lpfc_debug *debug; 1555 int rc = -ENOMEM; 1556 1557 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1558 if (!debug) 1559 goto out; 1560 1561 /* Round to page boundary */ 1562 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 1563 if (!debug->buffer) { 1564 kfree(debug); 1565 goto out; 1566 } 1567 1568 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 1569 LPFC_DUMPHBASLIM_SIZE); 1570 file->private_data = debug; 1571 1572 rc = 0; 1573 out: 1574 return rc; 1575 } 1576 1577 /** 1578 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 1579 * @inode: The inode pointer that contains a vport pointer. 1580 * @file: The file pointer to attach the log output. 1581 * 1582 * Description: 1583 * This routine is the entry point for the debugfs open file operation. It gets 1584 * the vport from the i_private field in @inode, allocates the necessary buffer 1585 * for the log, fills the buffer from the in-memory log for this vport, and then 1586 * returns a pointer to that log in the private_data field in @file. 1587 * 1588 * Returns: 1589 * This function returns zero if successful. On error it will return a negative 1590 * error value. 1591 **/ 1592 static int 1593 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 1594 { 1595 struct lpfc_hba *phba = inode->i_private; 1596 struct lpfc_debug *debug; 1597 int rc = -ENOMEM; 1598 1599 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1600 if (!debug) 1601 goto out; 1602 1603 /* Round to page boundary */ 1604 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 1605 if (!debug->buffer) { 1606 kfree(debug); 1607 goto out; 1608 } 1609 1610 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 1611 LPFC_DUMPHOSTSLIM_SIZE); 1612 file->private_data = debug; 1613 1614 rc = 0; 1615 out: 1616 return rc; 1617 } 1618 1619 static int 1620 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) 1621 { 1622 struct lpfc_debug *debug; 1623 int rc = -ENOMEM; 1624 1625 if (!_dump_buf_data) 1626 return -EBUSY; 1627 1628 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1629 if (!debug) 1630 goto out; 1631 1632 /* Round to page boundary */ 1633 pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n", 1634 __func__, _dump_buf_data); 1635 debug->buffer = _dump_buf_data; 1636 if (!debug->buffer) { 1637 kfree(debug); 1638 goto out; 1639 } 1640 1641 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; 1642 file->private_data = debug; 1643 1644 rc = 0; 1645 out: 1646 return rc; 1647 } 1648 1649 static int 1650 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) 1651 { 1652 struct lpfc_debug *debug; 1653 int rc = -ENOMEM; 1654 1655 if (!_dump_buf_dif) 1656 return -EBUSY; 1657 1658 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1659 if (!debug) 1660 goto out; 1661 1662 /* Round to page boundary */ 1663 pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n", 1664 __func__, _dump_buf_dif, file); 1665 debug->buffer = _dump_buf_dif; 1666 if (!debug->buffer) { 1667 kfree(debug); 1668 goto out; 1669 } 1670 1671 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; 1672 file->private_data = debug; 1673 1674 rc = 0; 1675 out: 1676 return rc; 1677 } 1678 1679 static ssize_t 1680 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, 1681 size_t nbytes, loff_t *ppos) 1682 { 1683 /* 1684 * The Data/DIF buffers only save one failing IO 1685 * The write op is used as a reset mechanism after an IO has 1686 * already been saved to the next one can be saved 1687 */ 1688 spin_lock(&_dump_buf_lock); 1689 1690 memset((void *)_dump_buf_data, 0, 1691 ((1 << PAGE_SHIFT) << _dump_buf_data_order)); 1692 memset((void *)_dump_buf_dif, 0, 1693 ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); 1694 1695 _dump_buf_done = 0; 1696 1697 spin_unlock(&_dump_buf_lock); 1698 1699 return nbytes; 1700 } 1701 1702 static ssize_t 1703 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 1704 size_t nbytes, loff_t *ppos) 1705 { 1706 struct dentry *dent = file->f_path.dentry; 1707 struct lpfc_hba *phba = file->private_data; 1708 char cbuf[32]; 1709 uint64_t tmp = 0; 1710 int cnt = 0; 1711 1712 if (dent == phba->debug_writeGuard) 1713 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 1714 else if (dent == phba->debug_writeApp) 1715 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 1716 else if (dent == phba->debug_writeRef) 1717 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 1718 else if (dent == phba->debug_readGuard) 1719 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 1720 else if (dent == phba->debug_readApp) 1721 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 1722 else if (dent == phba->debug_readRef) 1723 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 1724 else if (dent == phba->debug_InjErrNPortID) 1725 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); 1726 else if (dent == phba->debug_InjErrWWPN) { 1727 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 1728 tmp = cpu_to_be64(tmp); 1729 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); 1730 } else if (dent == phba->debug_InjErrLBA) { 1731 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 1732 cnt = snprintf(cbuf, 32, "off\n"); 1733 else 1734 cnt = snprintf(cbuf, 32, "0x%llx\n", 1735 (uint64_t) phba->lpfc_injerr_lba); 1736 } else 1737 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1738 "0547 Unknown debugfs error injection entry\n"); 1739 1740 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 1741 } 1742 1743 static ssize_t 1744 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 1745 size_t nbytes, loff_t *ppos) 1746 { 1747 struct dentry *dent = file->f_path.dentry; 1748 struct lpfc_hba *phba = file->private_data; 1749 char dstbuf[33]; 1750 uint64_t tmp = 0; 1751 int size; 1752 1753 memset(dstbuf, 0, 33); 1754 size = (nbytes < 32) ? nbytes : 32; 1755 if (copy_from_user(dstbuf, buf, size)) 1756 return 0; 1757 1758 if (dent == phba->debug_InjErrLBA) { 1759 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 1760 tmp = (uint64_t)(-1); 1761 } 1762 1763 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 1764 return 0; 1765 1766 if (dent == phba->debug_writeGuard) 1767 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 1768 else if (dent == phba->debug_writeApp) 1769 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 1770 else if (dent == phba->debug_writeRef) 1771 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 1772 else if (dent == phba->debug_readGuard) 1773 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 1774 else if (dent == phba->debug_readApp) 1775 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 1776 else if (dent == phba->debug_readRef) 1777 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 1778 else if (dent == phba->debug_InjErrLBA) 1779 phba->lpfc_injerr_lba = (sector_t)tmp; 1780 else if (dent == phba->debug_InjErrNPortID) 1781 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 1782 else if (dent == phba->debug_InjErrWWPN) { 1783 tmp = cpu_to_be64(tmp); 1784 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 1785 } else 1786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1787 "0548 Unknown debugfs error injection entry\n"); 1788 1789 return nbytes; 1790 } 1791 1792 static int 1793 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 1794 { 1795 return 0; 1796 } 1797 1798 /** 1799 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 1800 * @inode: The inode pointer that contains a vport pointer. 1801 * @file: The file pointer to attach the log output. 1802 * 1803 * Description: 1804 * This routine is the entry point for the debugfs open file operation. It gets 1805 * the vport from the i_private field in @inode, allocates the necessary buffer 1806 * for the log, fills the buffer from the in-memory log for this vport, and then 1807 * returns a pointer to that log in the private_data field in @file. 1808 * 1809 * Returns: 1810 * This function returns zero if successful. On error it will return a negative 1811 * error value. 1812 **/ 1813 static int 1814 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 1815 { 1816 struct lpfc_vport *vport = inode->i_private; 1817 struct lpfc_debug *debug; 1818 int rc = -ENOMEM; 1819 1820 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1821 if (!debug) 1822 goto out; 1823 1824 /* Round to page boundary */ 1825 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 1826 if (!debug->buffer) { 1827 kfree(debug); 1828 goto out; 1829 } 1830 1831 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 1832 LPFC_NODELIST_SIZE); 1833 file->private_data = debug; 1834 1835 rc = 0; 1836 out: 1837 return rc; 1838 } 1839 1840 /** 1841 * lpfc_debugfs_lseek - Seek through a debugfs file 1842 * @file: The file pointer to seek through. 1843 * @off: The offset to seek to or the amount to seek by. 1844 * @whence: Indicates how to seek. 1845 * 1846 * Description: 1847 * This routine is the entry point for the debugfs lseek file operation. The 1848 * @whence parameter indicates whether @off is the offset to directly seek to, 1849 * or if it is a value to seek forward or reverse by. This function figures out 1850 * what the new offset of the debugfs file will be and assigns that value to the 1851 * f_pos field of @file. 1852 * 1853 * Returns: 1854 * This function returns the new offset if successful and returns a negative 1855 * error if unable to process the seek. 1856 **/ 1857 static loff_t 1858 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 1859 { 1860 struct lpfc_debug *debug = file->private_data; 1861 return fixed_size_llseek(file, off, whence, debug->len); 1862 } 1863 1864 /** 1865 * lpfc_debugfs_read - Read a debugfs file 1866 * @file: The file pointer to read from. 1867 * @buf: The buffer to copy the data to. 1868 * @nbytes: The number of bytes to read. 1869 * @ppos: The position in the file to start reading from. 1870 * 1871 * Description: 1872 * This routine reads data from from the buffer indicated in the private_data 1873 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1874 * data to @buf. 1875 * 1876 * Returns: 1877 * This function returns the amount of data that was read (this could be less 1878 * than @nbytes if the end of the file was reached) or a negative error value. 1879 **/ 1880 static ssize_t 1881 lpfc_debugfs_read(struct file *file, char __user *buf, 1882 size_t nbytes, loff_t *ppos) 1883 { 1884 struct lpfc_debug *debug = file->private_data; 1885 1886 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1887 debug->len); 1888 } 1889 1890 /** 1891 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1892 * @inode: The inode pointer that contains a vport pointer. (unused) 1893 * @file: The file pointer that contains the buffer to release. 1894 * 1895 * Description: 1896 * This routine frees the buffer that was allocated when the debugfs file was 1897 * opened. 1898 * 1899 * Returns: 1900 * This function returns zero. 1901 **/ 1902 static int 1903 lpfc_debugfs_release(struct inode *inode, struct file *file) 1904 { 1905 struct lpfc_debug *debug = file->private_data; 1906 1907 kfree(debug->buffer); 1908 kfree(debug); 1909 1910 return 0; 1911 } 1912 1913 static int 1914 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1915 { 1916 struct lpfc_debug *debug = file->private_data; 1917 1918 debug->buffer = NULL; 1919 kfree(debug); 1920 1921 return 0; 1922 } 1923 1924 1925 static int 1926 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 1927 { 1928 struct lpfc_vport *vport = inode->i_private; 1929 struct lpfc_debug *debug; 1930 int rc = -ENOMEM; 1931 1932 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1933 if (!debug) 1934 goto out; 1935 1936 /* Round to page boundary */ 1937 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 1938 if (!debug->buffer) { 1939 kfree(debug); 1940 goto out; 1941 } 1942 1943 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 1944 LPFC_NVMESTAT_SIZE); 1945 1946 debug->i_private = inode->i_private; 1947 file->private_data = debug; 1948 1949 rc = 0; 1950 out: 1951 return rc; 1952 } 1953 1954 static ssize_t 1955 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 1956 size_t nbytes, loff_t *ppos) 1957 { 1958 struct lpfc_debug *debug = file->private_data; 1959 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 1960 struct lpfc_hba *phba = vport->phba; 1961 struct lpfc_nvmet_tgtport *tgtp; 1962 char mybuf[64]; 1963 char *pbuf; 1964 1965 if (!phba->targetport) 1966 return -ENXIO; 1967 1968 if (nbytes > 64) 1969 nbytes = 64; 1970 1971 memset(mybuf, 0, sizeof(mybuf)); 1972 1973 if (copy_from_user(mybuf, buf, nbytes)) 1974 return -EFAULT; 1975 pbuf = &mybuf[0]; 1976 1977 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1978 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 1979 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 1980 atomic_set(&tgtp->rcv_ls_req_in, 0); 1981 atomic_set(&tgtp->rcv_ls_req_out, 0); 1982 atomic_set(&tgtp->rcv_ls_req_drop, 0); 1983 atomic_set(&tgtp->xmt_ls_abort, 0); 1984 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 1985 atomic_set(&tgtp->xmt_ls_rsp, 0); 1986 atomic_set(&tgtp->xmt_ls_drop, 0); 1987 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 1988 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 1989 1990 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 1991 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 1992 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 1993 atomic_set(&tgtp->xmt_fcp_drop, 0); 1994 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 1995 atomic_set(&tgtp->xmt_fcp_read, 0); 1996 atomic_set(&tgtp->xmt_fcp_write, 0); 1997 atomic_set(&tgtp->xmt_fcp_rsp, 0); 1998 atomic_set(&tgtp->xmt_fcp_release, 0); 1999 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2000 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2001 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2002 2003 atomic_set(&tgtp->xmt_fcp_abort, 0); 2004 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2005 atomic_set(&tgtp->xmt_abort_sol, 0); 2006 atomic_set(&tgtp->xmt_abort_unsol, 0); 2007 atomic_set(&tgtp->xmt_abort_rsp, 0); 2008 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2009 } 2010 return nbytes; 2011 } 2012 2013 static int 2014 lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file) 2015 { 2016 struct lpfc_vport *vport = inode->i_private; 2017 struct lpfc_debug *debug; 2018 int rc = -ENOMEM; 2019 2020 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2021 if (!debug) 2022 goto out; 2023 2024 /* Round to page boundary */ 2025 debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL); 2026 if (!debug->buffer) { 2027 kfree(debug); 2028 goto out; 2029 } 2030 2031 debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer, 2032 LPFC_NVMEKTIME_SIZE); 2033 2034 debug->i_private = inode->i_private; 2035 file->private_data = debug; 2036 2037 rc = 0; 2038 out: 2039 return rc; 2040 } 2041 2042 static ssize_t 2043 lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf, 2044 size_t nbytes, loff_t *ppos) 2045 { 2046 struct lpfc_debug *debug = file->private_data; 2047 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2048 struct lpfc_hba *phba = vport->phba; 2049 char mybuf[64]; 2050 char *pbuf; 2051 2052 if (nbytes > 64) 2053 nbytes = 64; 2054 2055 memset(mybuf, 0, sizeof(mybuf)); 2056 2057 if (copy_from_user(mybuf, buf, nbytes)) 2058 return -EFAULT; 2059 pbuf = &mybuf[0]; 2060 2061 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2062 phba->ktime_data_samples = 0; 2063 phba->ktime_status_samples = 0; 2064 phba->ktime_seg1_total = 0; 2065 phba->ktime_seg1_max = 0; 2066 phba->ktime_seg1_min = 0xffffffff; 2067 phba->ktime_seg2_total = 0; 2068 phba->ktime_seg2_max = 0; 2069 phba->ktime_seg2_min = 0xffffffff; 2070 phba->ktime_seg3_total = 0; 2071 phba->ktime_seg3_max = 0; 2072 phba->ktime_seg3_min = 0xffffffff; 2073 phba->ktime_seg4_total = 0; 2074 phba->ktime_seg4_max = 0; 2075 phba->ktime_seg4_min = 0xffffffff; 2076 phba->ktime_seg5_total = 0; 2077 phba->ktime_seg5_max = 0; 2078 phba->ktime_seg5_min = 0xffffffff; 2079 phba->ktime_seg6_total = 0; 2080 phba->ktime_seg6_max = 0; 2081 phba->ktime_seg6_min = 0xffffffff; 2082 phba->ktime_seg7_total = 0; 2083 phba->ktime_seg7_max = 0; 2084 phba->ktime_seg7_min = 0xffffffff; 2085 phba->ktime_seg8_total = 0; 2086 phba->ktime_seg8_max = 0; 2087 phba->ktime_seg8_min = 0xffffffff; 2088 phba->ktime_seg9_total = 0; 2089 phba->ktime_seg9_max = 0; 2090 phba->ktime_seg9_min = 0xffffffff; 2091 phba->ktime_seg10_total = 0; 2092 phba->ktime_seg10_max = 0; 2093 phba->ktime_seg10_min = 0xffffffff; 2094 2095 phba->ktime_on = 1; 2096 return strlen(pbuf); 2097 } else if ((strncmp(pbuf, "off", 2098 sizeof("off") - 1) == 0)) { 2099 phba->ktime_on = 0; 2100 return strlen(pbuf); 2101 } else if ((strncmp(pbuf, "zero", 2102 sizeof("zero") - 1) == 0)) { 2103 phba->ktime_data_samples = 0; 2104 phba->ktime_status_samples = 0; 2105 phba->ktime_seg1_total = 0; 2106 phba->ktime_seg1_max = 0; 2107 phba->ktime_seg1_min = 0xffffffff; 2108 phba->ktime_seg2_total = 0; 2109 phba->ktime_seg2_max = 0; 2110 phba->ktime_seg2_min = 0xffffffff; 2111 phba->ktime_seg3_total = 0; 2112 phba->ktime_seg3_max = 0; 2113 phba->ktime_seg3_min = 0xffffffff; 2114 phba->ktime_seg4_total = 0; 2115 phba->ktime_seg4_max = 0; 2116 phba->ktime_seg4_min = 0xffffffff; 2117 phba->ktime_seg5_total = 0; 2118 phba->ktime_seg5_max = 0; 2119 phba->ktime_seg5_min = 0xffffffff; 2120 phba->ktime_seg6_total = 0; 2121 phba->ktime_seg6_max = 0; 2122 phba->ktime_seg6_min = 0xffffffff; 2123 phba->ktime_seg7_total = 0; 2124 phba->ktime_seg7_max = 0; 2125 phba->ktime_seg7_min = 0xffffffff; 2126 phba->ktime_seg8_total = 0; 2127 phba->ktime_seg8_max = 0; 2128 phba->ktime_seg8_min = 0xffffffff; 2129 phba->ktime_seg9_total = 0; 2130 phba->ktime_seg9_max = 0; 2131 phba->ktime_seg9_min = 0xffffffff; 2132 phba->ktime_seg10_total = 0; 2133 phba->ktime_seg10_max = 0; 2134 phba->ktime_seg10_min = 0xffffffff; 2135 return strlen(pbuf); 2136 } 2137 return -EINVAL; 2138 } 2139 2140 static int 2141 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2142 { 2143 struct lpfc_hba *phba = inode->i_private; 2144 struct lpfc_debug *debug; 2145 int rc = -ENOMEM; 2146 2147 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2148 if (!debug) 2149 goto out; 2150 2151 /* Round to page boundary */ 2152 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2153 if (!debug->buffer) { 2154 kfree(debug); 2155 goto out; 2156 } 2157 2158 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2159 LPFC_NVMEIO_TRC_SIZE); 2160 2161 debug->i_private = inode->i_private; 2162 file->private_data = debug; 2163 2164 rc = 0; 2165 out: 2166 return rc; 2167 } 2168 2169 static ssize_t 2170 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2171 size_t nbytes, loff_t *ppos) 2172 { 2173 struct lpfc_debug *debug = file->private_data; 2174 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2175 int i; 2176 unsigned long sz; 2177 char mybuf[64]; 2178 char *pbuf; 2179 2180 if (nbytes > 64) 2181 nbytes = 64; 2182 2183 memset(mybuf, 0, sizeof(mybuf)); 2184 2185 if (copy_from_user(mybuf, buf, nbytes)) 2186 return -EFAULT; 2187 pbuf = &mybuf[0]; 2188 2189 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2191 "0570 nvmeio_trc_off\n"); 2192 phba->nvmeio_trc_output_idx = 0; 2193 phba->nvmeio_trc_on = 0; 2194 return strlen(pbuf); 2195 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2197 "0571 nvmeio_trc_on\n"); 2198 phba->nvmeio_trc_output_idx = 0; 2199 phba->nvmeio_trc_on = 1; 2200 return strlen(pbuf); 2201 } 2202 2203 /* We must be off to allocate the trace buffer */ 2204 if (phba->nvmeio_trc_on != 0) 2205 return -EINVAL; 2206 2207 /* If not on or off, the parameter is the trace buffer size */ 2208 i = kstrtoul(pbuf, 0, &sz); 2209 if (i) 2210 return -EINVAL; 2211 phba->nvmeio_trc_size = (uint32_t)sz; 2212 2213 /* It must be a power of 2 - round down */ 2214 i = 0; 2215 while (sz > 1) { 2216 sz = sz >> 1; 2217 i++; 2218 } 2219 sz = (1 << i); 2220 if (phba->nvmeio_trc_size != sz) 2221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2222 "0572 nvmeio_trc_size changed to %ld\n", 2223 sz); 2224 phba->nvmeio_trc_size = (uint32_t)sz; 2225 2226 /* If one previously exists, free it */ 2227 kfree(phba->nvmeio_trc); 2228 2229 /* Allocate new trace buffer and initialize */ 2230 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 2231 sz), GFP_KERNEL); 2232 if (!phba->nvmeio_trc) { 2233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2234 "0573 Cannot create debugfs " 2235 "nvmeio_trc buffer\n"); 2236 return -ENOMEM; 2237 } 2238 atomic_set(&phba->nvmeio_trc_cnt, 0); 2239 phba->nvmeio_trc_on = 0; 2240 phba->nvmeio_trc_output_idx = 0; 2241 2242 return strlen(pbuf); 2243 } 2244 2245 static int 2246 lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file) 2247 { 2248 struct lpfc_vport *vport = inode->i_private; 2249 struct lpfc_debug *debug; 2250 int rc = -ENOMEM; 2251 2252 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2253 if (!debug) 2254 goto out; 2255 2256 /* Round to page boundary */ 2257 debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL); 2258 if (!debug->buffer) { 2259 kfree(debug); 2260 goto out; 2261 } 2262 2263 debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer, 2264 LPFC_NVMEKTIME_SIZE); 2265 2266 debug->i_private = inode->i_private; 2267 file->private_data = debug; 2268 2269 rc = 0; 2270 out: 2271 return rc; 2272 } 2273 2274 static ssize_t 2275 lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf, 2276 size_t nbytes, loff_t *ppos) 2277 { 2278 struct lpfc_debug *debug = file->private_data; 2279 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2280 struct lpfc_hba *phba = vport->phba; 2281 char mybuf[64]; 2282 char *pbuf; 2283 int i; 2284 2285 if (nbytes > 64) 2286 nbytes = 64; 2287 2288 memset(mybuf, 0, sizeof(mybuf)); 2289 2290 if (copy_from_user(mybuf, buf, nbytes)) 2291 return -EFAULT; 2292 pbuf = &mybuf[0]; 2293 2294 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2295 if (phba->nvmet_support) 2296 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO; 2297 else 2298 phba->cpucheck_on |= LPFC_CHECK_NVME_IO; 2299 return strlen(pbuf); 2300 } else if ((strncmp(pbuf, "rcv", 2301 sizeof("rcv") - 1) == 0)) { 2302 if (phba->nvmet_support) 2303 phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV; 2304 else 2305 return -EINVAL; 2306 return strlen(pbuf); 2307 } else if ((strncmp(pbuf, "off", 2308 sizeof("off") - 1) == 0)) { 2309 phba->cpucheck_on = LPFC_CHECK_OFF; 2310 return strlen(pbuf); 2311 } else if ((strncmp(pbuf, "zero", 2312 sizeof("zero") - 1) == 0)) { 2313 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 2314 if (i >= LPFC_CHECK_CPU_CNT) 2315 break; 2316 phba->cpucheck_rcv_io[i] = 0; 2317 phba->cpucheck_xmt_io[i] = 0; 2318 phba->cpucheck_cmpl_io[i] = 0; 2319 phba->cpucheck_ccmpl_io[i] = 0; 2320 } 2321 return strlen(pbuf); 2322 } 2323 return -EINVAL; 2324 } 2325 2326 /* 2327 * --------------------------------- 2328 * iDiag debugfs file access methods 2329 * --------------------------------- 2330 * 2331 * All access methods are through the proper SLI4 PCI function's debugfs 2332 * iDiag directory: 2333 * 2334 * /sys/kernel/debug/lpfc/fn<#>/iDiag 2335 */ 2336 2337 /** 2338 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 2339 * @buf: The pointer to the user space buffer. 2340 * @nbytes: The number of bytes in the user space buffer. 2341 * @idiag_cmd: pointer to the idiag command struct. 2342 * 2343 * This routine reads data from debugfs user space buffer and parses the 2344 * buffer for getting the idiag command and arguments. The while space in 2345 * between the set of data is used as the parsing separator. 2346 * 2347 * This routine returns 0 when successful, it returns proper error code 2348 * back to the user space in error conditions. 2349 */ 2350 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 2351 struct lpfc_idiag_cmd *idiag_cmd) 2352 { 2353 char mybuf[64]; 2354 char *pbuf, *step_str; 2355 int i; 2356 size_t bsize; 2357 2358 memset(mybuf, 0, sizeof(mybuf)); 2359 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 2360 bsize = min(nbytes, (sizeof(mybuf)-1)); 2361 2362 if (copy_from_user(mybuf, buf, bsize)) 2363 return -EFAULT; 2364 pbuf = &mybuf[0]; 2365 step_str = strsep(&pbuf, "\t "); 2366 2367 /* The opcode must present */ 2368 if (!step_str) 2369 return -EINVAL; 2370 2371 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 2372 if (idiag_cmd->opcode == 0) 2373 return -EINVAL; 2374 2375 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 2376 step_str = strsep(&pbuf, "\t "); 2377 if (!step_str) 2378 return i; 2379 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 2380 } 2381 return i; 2382 } 2383 2384 /** 2385 * lpfc_idiag_open - idiag open debugfs 2386 * @inode: The inode pointer that contains a pointer to phba. 2387 * @file: The file pointer to attach the file operation. 2388 * 2389 * Description: 2390 * This routine is the entry point for the debugfs open file operation. It 2391 * gets the reference to phba from the i_private field in @inode, it then 2392 * allocates buffer for the file operation, performs the necessary PCI config 2393 * space read into the allocated buffer according to the idiag user command 2394 * setup, and then returns a pointer to buffer in the private_data field in 2395 * @file. 2396 * 2397 * Returns: 2398 * This function returns zero if successful. On error it will return an 2399 * negative error value. 2400 **/ 2401 static int 2402 lpfc_idiag_open(struct inode *inode, struct file *file) 2403 { 2404 struct lpfc_debug *debug; 2405 2406 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2407 if (!debug) 2408 return -ENOMEM; 2409 2410 debug->i_private = inode->i_private; 2411 debug->buffer = NULL; 2412 file->private_data = debug; 2413 2414 return 0; 2415 } 2416 2417 /** 2418 * lpfc_idiag_release - Release idiag access file operation 2419 * @inode: The inode pointer that contains a vport pointer. (unused) 2420 * @file: The file pointer that contains the buffer to release. 2421 * 2422 * Description: 2423 * This routine is the generic release routine for the idiag access file 2424 * operation, it frees the buffer that was allocated when the debugfs file 2425 * was opened. 2426 * 2427 * Returns: 2428 * This function returns zero. 2429 **/ 2430 static int 2431 lpfc_idiag_release(struct inode *inode, struct file *file) 2432 { 2433 struct lpfc_debug *debug = file->private_data; 2434 2435 /* Free the buffers to the file operation */ 2436 kfree(debug->buffer); 2437 kfree(debug); 2438 2439 return 0; 2440 } 2441 2442 /** 2443 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 2444 * @inode: The inode pointer that contains a vport pointer. (unused) 2445 * @file: The file pointer that contains the buffer to release. 2446 * 2447 * Description: 2448 * This routine frees the buffer that was allocated when the debugfs file 2449 * was opened. It also reset the fields in the idiag command struct in the 2450 * case of command for write operation. 2451 * 2452 * Returns: 2453 * This function returns zero. 2454 **/ 2455 static int 2456 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 2457 { 2458 struct lpfc_debug *debug = file->private_data; 2459 2460 if (debug->op == LPFC_IDIAG_OP_WR) { 2461 switch (idiag.cmd.opcode) { 2462 case LPFC_IDIAG_CMD_PCICFG_WR: 2463 case LPFC_IDIAG_CMD_PCICFG_ST: 2464 case LPFC_IDIAG_CMD_PCICFG_CL: 2465 case LPFC_IDIAG_CMD_QUEACC_WR: 2466 case LPFC_IDIAG_CMD_QUEACC_ST: 2467 case LPFC_IDIAG_CMD_QUEACC_CL: 2468 memset(&idiag, 0, sizeof(idiag)); 2469 break; 2470 default: 2471 break; 2472 } 2473 } 2474 2475 /* Free the buffers to the file operation */ 2476 kfree(debug->buffer); 2477 kfree(debug); 2478 2479 return 0; 2480 } 2481 2482 /** 2483 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 2484 * @file: The file pointer to read from. 2485 * @buf: The buffer to copy the data to. 2486 * @nbytes: The number of bytes to read. 2487 * @ppos: The position in the file to start reading from. 2488 * 2489 * Description: 2490 * This routine reads data from the @phba pci config space according to the 2491 * idiag command, and copies to user @buf. Depending on the PCI config space 2492 * read command setup, it does either a single register read of a byte 2493 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 2494 * registers from the 4K extended PCI config space. 2495 * 2496 * Returns: 2497 * This function returns the amount of data that was read (this could be less 2498 * than @nbytes if the end of the file was reached) or a negative error value. 2499 **/ 2500 static ssize_t 2501 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 2502 loff_t *ppos) 2503 { 2504 struct lpfc_debug *debug = file->private_data; 2505 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2506 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 2507 int where, count; 2508 char *pbuffer; 2509 struct pci_dev *pdev; 2510 uint32_t u32val; 2511 uint16_t u16val; 2512 uint8_t u8val; 2513 2514 pdev = phba->pcidev; 2515 if (!pdev) 2516 return 0; 2517 2518 /* This is a user read operation */ 2519 debug->op = LPFC_IDIAG_OP_RD; 2520 2521 if (!debug->buffer) 2522 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 2523 if (!debug->buffer) 2524 return 0; 2525 pbuffer = debug->buffer; 2526 2527 if (*ppos) 2528 return 0; 2529 2530 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2531 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2532 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2533 } else 2534 return 0; 2535 2536 /* Read single PCI config space register */ 2537 switch (count) { 2538 case SIZE_U8: /* byte (8 bits) */ 2539 pci_read_config_byte(pdev, where, &u8val); 2540 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2541 "%03x: %02x\n", where, u8val); 2542 break; 2543 case SIZE_U16: /* word (16 bits) */ 2544 pci_read_config_word(pdev, where, &u16val); 2545 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2546 "%03x: %04x\n", where, u16val); 2547 break; 2548 case SIZE_U32: /* double word (32 bits) */ 2549 pci_read_config_dword(pdev, where, &u32val); 2550 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2551 "%03x: %08x\n", where, u32val); 2552 break; 2553 case LPFC_PCI_CFG_BROWSE: /* browse all */ 2554 goto pcicfg_browse; 2555 break; 2556 default: 2557 /* illegal count */ 2558 len = 0; 2559 break; 2560 } 2561 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2562 2563 pcicfg_browse: 2564 2565 /* Browse all PCI config space registers */ 2566 offset_label = idiag.offset.last_rd; 2567 offset = offset_label; 2568 2569 /* Read PCI config space */ 2570 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2571 "%03x: ", offset_label); 2572 while (index > 0) { 2573 pci_read_config_dword(pdev, offset, &u32val); 2574 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2575 "%08x ", u32val); 2576 offset += sizeof(uint32_t); 2577 if (offset >= LPFC_PCI_CFG_SIZE) { 2578 len += snprintf(pbuffer+len, 2579 LPFC_PCI_CFG_SIZE-len, "\n"); 2580 break; 2581 } 2582 index -= sizeof(uint32_t); 2583 if (!index) 2584 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2585 "\n"); 2586 else if (!(index % (8 * sizeof(uint32_t)))) { 2587 offset_label += (8 * sizeof(uint32_t)); 2588 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2589 "\n%03x: ", offset_label); 2590 } 2591 } 2592 2593 /* Set up the offset for next portion of pci cfg read */ 2594 if (index == 0) { 2595 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 2596 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 2597 idiag.offset.last_rd = 0; 2598 } else 2599 idiag.offset.last_rd = 0; 2600 2601 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2602 } 2603 2604 /** 2605 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 2606 * @file: The file pointer to read from. 2607 * @buf: The buffer to copy the user data from. 2608 * @nbytes: The number of bytes to get. 2609 * @ppos: The position in the file to start reading from. 2610 * 2611 * This routine get the debugfs idiag command struct from user space and 2612 * then perform the syntax check for PCI config space read or write command 2613 * accordingly. In the case of PCI config space read command, it sets up 2614 * the command in the idiag command struct for the debugfs read operation. 2615 * In the case of PCI config space write operation, it executes the write 2616 * operation into the PCI config space accordingly. 2617 * 2618 * It returns the @nbytges passing in from debugfs user space when successful. 2619 * In case of error conditions, it returns proper error code back to the user 2620 * space. 2621 */ 2622 static ssize_t 2623 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 2624 size_t nbytes, loff_t *ppos) 2625 { 2626 struct lpfc_debug *debug = file->private_data; 2627 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2628 uint32_t where, value, count; 2629 uint32_t u32val; 2630 uint16_t u16val; 2631 uint8_t u8val; 2632 struct pci_dev *pdev; 2633 int rc; 2634 2635 pdev = phba->pcidev; 2636 if (!pdev) 2637 return -EFAULT; 2638 2639 /* This is a user write operation */ 2640 debug->op = LPFC_IDIAG_OP_WR; 2641 2642 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2643 if (rc < 0) 2644 return rc; 2645 2646 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2647 /* Sanity check on PCI config read command line arguments */ 2648 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 2649 goto error_out; 2650 /* Read command from PCI config space, set up command fields */ 2651 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2652 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2653 if (count == LPFC_PCI_CFG_BROWSE) { 2654 if (where % sizeof(uint32_t)) 2655 goto error_out; 2656 /* Starting offset to browse */ 2657 idiag.offset.last_rd = where; 2658 } else if ((count != sizeof(uint8_t)) && 2659 (count != sizeof(uint16_t)) && 2660 (count != sizeof(uint32_t))) 2661 goto error_out; 2662 if (count == sizeof(uint8_t)) { 2663 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2664 goto error_out; 2665 if (where % sizeof(uint8_t)) 2666 goto error_out; 2667 } 2668 if (count == sizeof(uint16_t)) { 2669 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2670 goto error_out; 2671 if (where % sizeof(uint16_t)) 2672 goto error_out; 2673 } 2674 if (count == sizeof(uint32_t)) { 2675 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2676 goto error_out; 2677 if (where % sizeof(uint32_t)) 2678 goto error_out; 2679 } 2680 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 2681 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 2682 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2683 /* Sanity check on PCI config write command line arguments */ 2684 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 2685 goto error_out; 2686 /* Write command to PCI config space, read-modify-write */ 2687 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2688 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2689 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 2690 /* Sanity checks */ 2691 if ((count != sizeof(uint8_t)) && 2692 (count != sizeof(uint16_t)) && 2693 (count != sizeof(uint32_t))) 2694 goto error_out; 2695 if (count == sizeof(uint8_t)) { 2696 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2697 goto error_out; 2698 if (where % sizeof(uint8_t)) 2699 goto error_out; 2700 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2701 pci_write_config_byte(pdev, where, 2702 (uint8_t)value); 2703 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2704 rc = pci_read_config_byte(pdev, where, &u8val); 2705 if (!rc) { 2706 u8val |= (uint8_t)value; 2707 pci_write_config_byte(pdev, where, 2708 u8val); 2709 } 2710 } 2711 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2712 rc = pci_read_config_byte(pdev, where, &u8val); 2713 if (!rc) { 2714 u8val &= (uint8_t)(~value); 2715 pci_write_config_byte(pdev, where, 2716 u8val); 2717 } 2718 } 2719 } 2720 if (count == sizeof(uint16_t)) { 2721 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2722 goto error_out; 2723 if (where % sizeof(uint16_t)) 2724 goto error_out; 2725 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2726 pci_write_config_word(pdev, where, 2727 (uint16_t)value); 2728 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2729 rc = pci_read_config_word(pdev, where, &u16val); 2730 if (!rc) { 2731 u16val |= (uint16_t)value; 2732 pci_write_config_word(pdev, where, 2733 u16val); 2734 } 2735 } 2736 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2737 rc = pci_read_config_word(pdev, where, &u16val); 2738 if (!rc) { 2739 u16val &= (uint16_t)(~value); 2740 pci_write_config_word(pdev, where, 2741 u16val); 2742 } 2743 } 2744 } 2745 if (count == sizeof(uint32_t)) { 2746 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2747 goto error_out; 2748 if (where % sizeof(uint32_t)) 2749 goto error_out; 2750 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2751 pci_write_config_dword(pdev, where, value); 2752 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2753 rc = pci_read_config_dword(pdev, where, 2754 &u32val); 2755 if (!rc) { 2756 u32val |= value; 2757 pci_write_config_dword(pdev, where, 2758 u32val); 2759 } 2760 } 2761 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2762 rc = pci_read_config_dword(pdev, where, 2763 &u32val); 2764 if (!rc) { 2765 u32val &= ~value; 2766 pci_write_config_dword(pdev, where, 2767 u32val); 2768 } 2769 } 2770 } 2771 } else 2772 /* All other opecodes are illegal for now */ 2773 goto error_out; 2774 2775 return nbytes; 2776 error_out: 2777 memset(&idiag, 0, sizeof(idiag)); 2778 return -EINVAL; 2779 } 2780 2781 /** 2782 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 2783 * @file: The file pointer to read from. 2784 * @buf: The buffer to copy the data to. 2785 * @nbytes: The number of bytes to read. 2786 * @ppos: The position in the file to start reading from. 2787 * 2788 * Description: 2789 * This routine reads data from the @phba pci bar memory mapped space 2790 * according to the idiag command, and copies to user @buf. 2791 * 2792 * Returns: 2793 * This function returns the amount of data that was read (this could be less 2794 * than @nbytes if the end of the file was reached) or a negative error value. 2795 **/ 2796 static ssize_t 2797 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 2798 loff_t *ppos) 2799 { 2800 struct lpfc_debug *debug = file->private_data; 2801 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2802 int offset_label, offset, offset_run, len = 0, index; 2803 int bar_num, acc_range, bar_size; 2804 char *pbuffer; 2805 void __iomem *mem_mapped_bar; 2806 uint32_t if_type; 2807 struct pci_dev *pdev; 2808 uint32_t u32val; 2809 2810 pdev = phba->pcidev; 2811 if (!pdev) 2812 return 0; 2813 2814 /* This is a user read operation */ 2815 debug->op = LPFC_IDIAG_OP_RD; 2816 2817 if (!debug->buffer) 2818 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 2819 if (!debug->buffer) 2820 return 0; 2821 pbuffer = debug->buffer; 2822 2823 if (*ppos) 2824 return 0; 2825 2826 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 2827 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 2828 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 2829 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 2830 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 2831 } else 2832 return 0; 2833 2834 if (acc_range == 0) 2835 return 0; 2836 2837 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2838 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2839 if (bar_num == IDIAG_BARACC_BAR_0) 2840 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2841 else if (bar_num == IDIAG_BARACC_BAR_1) 2842 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 2843 else if (bar_num == IDIAG_BARACC_BAR_2) 2844 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 2845 else 2846 return 0; 2847 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2848 if (bar_num == IDIAG_BARACC_BAR_0) 2849 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2850 else 2851 return 0; 2852 } else 2853 return 0; 2854 2855 /* Read single PCI bar space register */ 2856 if (acc_range == SINGLE_WORD) { 2857 offset_run = offset; 2858 u32val = readl(mem_mapped_bar + offset_run); 2859 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2860 "%05x: %08x\n", offset_run, u32val); 2861 } else 2862 goto baracc_browse; 2863 2864 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2865 2866 baracc_browse: 2867 2868 /* Browse all PCI bar space registers */ 2869 offset_label = idiag.offset.last_rd; 2870 offset_run = offset_label; 2871 2872 /* Read PCI bar memory mapped space */ 2873 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2874 "%05x: ", offset_label); 2875 index = LPFC_PCI_BAR_RD_SIZE; 2876 while (index > 0) { 2877 u32val = readl(mem_mapped_bar + offset_run); 2878 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2879 "%08x ", u32val); 2880 offset_run += sizeof(uint32_t); 2881 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2882 if (offset_run >= bar_size) { 2883 len += snprintf(pbuffer+len, 2884 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2885 break; 2886 } 2887 } else { 2888 if (offset_run >= offset + 2889 (acc_range * sizeof(uint32_t))) { 2890 len += snprintf(pbuffer+len, 2891 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2892 break; 2893 } 2894 } 2895 index -= sizeof(uint32_t); 2896 if (!index) 2897 len += snprintf(pbuffer+len, 2898 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2899 else if (!(index % (8 * sizeof(uint32_t)))) { 2900 offset_label += (8 * sizeof(uint32_t)); 2901 len += snprintf(pbuffer+len, 2902 LPFC_PCI_BAR_RD_BUF_SIZE-len, 2903 "\n%05x: ", offset_label); 2904 } 2905 } 2906 2907 /* Set up the offset for next portion of pci bar read */ 2908 if (index == 0) { 2909 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 2910 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2911 if (idiag.offset.last_rd >= bar_size) 2912 idiag.offset.last_rd = 0; 2913 } else { 2914 if (offset_run >= offset + 2915 (acc_range * sizeof(uint32_t))) 2916 idiag.offset.last_rd = offset; 2917 } 2918 } else { 2919 if (acc_range == LPFC_PCI_BAR_BROWSE) 2920 idiag.offset.last_rd = 0; 2921 else 2922 idiag.offset.last_rd = offset; 2923 } 2924 2925 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2926 } 2927 2928 /** 2929 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 2930 * @file: The file pointer to read from. 2931 * @buf: The buffer to copy the user data from. 2932 * @nbytes: The number of bytes to get. 2933 * @ppos: The position in the file to start reading from. 2934 * 2935 * This routine get the debugfs idiag command struct from user space and 2936 * then perform the syntax check for PCI bar memory mapped space read or 2937 * write command accordingly. In the case of PCI bar memory mapped space 2938 * read command, it sets up the command in the idiag command struct for 2939 * the debugfs read operation. In the case of PCI bar memorpy mapped space 2940 * write operation, it executes the write operation into the PCI bar memory 2941 * mapped space accordingly. 2942 * 2943 * It returns the @nbytges passing in from debugfs user space when successful. 2944 * In case of error conditions, it returns proper error code back to the user 2945 * space. 2946 */ 2947 static ssize_t 2948 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 2949 size_t nbytes, loff_t *ppos) 2950 { 2951 struct lpfc_debug *debug = file->private_data; 2952 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2953 uint32_t bar_num, bar_size, offset, value, acc_range; 2954 struct pci_dev *pdev; 2955 void __iomem *mem_mapped_bar; 2956 uint32_t if_type; 2957 uint32_t u32val; 2958 int rc; 2959 2960 pdev = phba->pcidev; 2961 if (!pdev) 2962 return -EFAULT; 2963 2964 /* This is a user write operation */ 2965 debug->op = LPFC_IDIAG_OP_WR; 2966 2967 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2968 if (rc < 0) 2969 return rc; 2970 2971 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2972 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 2973 2974 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2975 if ((bar_num != IDIAG_BARACC_BAR_0) && 2976 (bar_num != IDIAG_BARACC_BAR_1) && 2977 (bar_num != IDIAG_BARACC_BAR_2)) 2978 goto error_out; 2979 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2980 if (bar_num != IDIAG_BARACC_BAR_0) 2981 goto error_out; 2982 } else 2983 goto error_out; 2984 2985 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2986 if (bar_num == IDIAG_BARACC_BAR_0) { 2987 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2988 LPFC_PCI_IF0_BAR0_SIZE; 2989 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2990 } else if (bar_num == IDIAG_BARACC_BAR_1) { 2991 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2992 LPFC_PCI_IF0_BAR1_SIZE; 2993 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 2994 } else if (bar_num == IDIAG_BARACC_BAR_2) { 2995 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2996 LPFC_PCI_IF0_BAR2_SIZE; 2997 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 2998 } else 2999 goto error_out; 3000 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3001 if (bar_num == IDIAG_BARACC_BAR_0) { 3002 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3003 LPFC_PCI_IF2_BAR0_SIZE; 3004 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3005 } else 3006 goto error_out; 3007 } else 3008 goto error_out; 3009 3010 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3011 if (offset % sizeof(uint32_t)) 3012 goto error_out; 3013 3014 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3015 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3016 /* Sanity check on PCI config read command line arguments */ 3017 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3018 goto error_out; 3019 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3020 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3021 if (offset > bar_size - sizeof(uint32_t)) 3022 goto error_out; 3023 /* Starting offset to browse */ 3024 idiag.offset.last_rd = offset; 3025 } else if (acc_range > SINGLE_WORD) { 3026 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3027 goto error_out; 3028 /* Starting offset to browse */ 3029 idiag.offset.last_rd = offset; 3030 } else if (acc_range != SINGLE_WORD) 3031 goto error_out; 3032 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3033 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3034 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3035 /* Sanity check on PCI bar write command line arguments */ 3036 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3037 goto error_out; 3038 /* Write command to PCI bar space, read-modify-write */ 3039 acc_range = SINGLE_WORD; 3040 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3041 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3042 writel(value, mem_mapped_bar + offset); 3043 readl(mem_mapped_bar + offset); 3044 } 3045 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3046 u32val = readl(mem_mapped_bar + offset); 3047 u32val |= value; 3048 writel(u32val, mem_mapped_bar + offset); 3049 readl(mem_mapped_bar + offset); 3050 } 3051 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3052 u32val = readl(mem_mapped_bar + offset); 3053 u32val &= ~value; 3054 writel(u32val, mem_mapped_bar + offset); 3055 readl(mem_mapped_bar + offset); 3056 } 3057 } else 3058 /* All other opecodes are illegal for now */ 3059 goto error_out; 3060 3061 return nbytes; 3062 error_out: 3063 memset(&idiag, 0, sizeof(idiag)); 3064 return -EINVAL; 3065 } 3066 3067 static int 3068 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3069 char *pbuffer, int len) 3070 { 3071 if (!qp) 3072 return len; 3073 3074 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3075 "\t\t%s WQ info: ", wqtype); 3076 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3077 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3078 qp->assoc_qid, qp->q_cnt_1, 3079 (unsigned long long)qp->q_cnt_4); 3080 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3081 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3082 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3083 qp->queue_id, qp->entry_count, 3084 qp->entry_size, qp->host_index, 3085 qp->hba_index, qp->entry_repost); 3086 len += snprintf(pbuffer + len, 3087 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3088 return len; 3089 } 3090 3091 static int 3092 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3093 int *len, int max_cnt, int cq_id) 3094 { 3095 struct lpfc_queue *qp; 3096 int qidx; 3097 3098 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3099 qp = phba->sli4_hba.fcp_wq[qidx]; 3100 if (qp->assoc_qid != cq_id) 3101 continue; 3102 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3103 if (*len >= max_cnt) 3104 return 1; 3105 } 3106 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3107 qp = phba->sli4_hba.nvme_wq[qidx]; 3108 if (qp->assoc_qid != cq_id) 3109 continue; 3110 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3111 if (*len >= max_cnt) 3112 return 1; 3113 } 3114 return 0; 3115 } 3116 3117 static int 3118 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3119 char *pbuffer, int len) 3120 { 3121 if (!qp) 3122 return len; 3123 3124 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3125 "\t%s CQ info: ", cqtype); 3126 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3127 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3128 "xabt:x%x wq:x%llx]\n", 3129 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3130 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3131 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3132 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3133 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3134 qp->queue_id, qp->entry_count, 3135 qp->entry_size, qp->host_index, 3136 qp->hba_index, qp->entry_repost); 3137 3138 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3139 3140 return len; 3141 } 3142 3143 static int 3144 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3145 char *rqtype, char *pbuffer, int len) 3146 { 3147 if (!qp || !datqp) 3148 return len; 3149 3150 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3151 "\t\t%s RQ info: ", rqtype); 3152 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3153 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3154 "posted:x%x rcv:x%llx]\n", 3155 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3156 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3157 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3158 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3159 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n", 3160 qp->queue_id, qp->entry_count, qp->entry_size, 3161 qp->host_index, qp->hba_index, qp->entry_repost); 3162 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3163 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3164 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n", 3165 datqp->queue_id, datqp->entry_count, 3166 datqp->entry_size, datqp->host_index, 3167 datqp->hba_index, datqp->entry_repost); 3168 return len; 3169 } 3170 3171 static int 3172 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3173 int *len, int max_cnt, int eqidx, int eq_id) 3174 { 3175 struct lpfc_queue *qp; 3176 int qidx, rc; 3177 3178 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3179 qp = phba->sli4_hba.fcp_cq[qidx]; 3180 if (qp->assoc_qid != eq_id) 3181 continue; 3182 3183 *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len); 3184 3185 /* Reset max counter */ 3186 qp->CQ_max_cqe = 0; 3187 3188 if (*len >= max_cnt) 3189 return 1; 3190 3191 rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len, 3192 max_cnt, qp->queue_id); 3193 if (rc) 3194 return 1; 3195 } 3196 3197 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3198 qp = phba->sli4_hba.nvme_cq[qidx]; 3199 if (qp->assoc_qid != eq_id) 3200 continue; 3201 3202 *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len); 3203 3204 /* Reset max counter */ 3205 qp->CQ_max_cqe = 0; 3206 3207 if (*len >= max_cnt) 3208 return 1; 3209 3210 rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len, 3211 max_cnt, qp->queue_id); 3212 if (rc) 3213 return 1; 3214 } 3215 3216 if (eqidx < phba->cfg_nvmet_mrq) { 3217 /* NVMET CQset */ 3218 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3219 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3220 3221 /* Reset max counter */ 3222 qp->CQ_max_cqe = 0; 3223 3224 if (*len >= max_cnt) 3225 return 1; 3226 3227 /* RQ header */ 3228 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3229 *len = __lpfc_idiag_print_rqpair(qp, 3230 phba->sli4_hba.nvmet_mrq_data[eqidx], 3231 "NVMET MRQ", pbuffer, *len); 3232 3233 if (*len >= max_cnt) 3234 return 1; 3235 } 3236 3237 return 0; 3238 } 3239 3240 static int 3241 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 3242 char *pbuffer, int len) 3243 { 3244 if (!qp) 3245 return len; 3246 3247 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3248 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 3249 "bs:x%x proc:x%llx eqd %d]\n", 3250 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 3251 (unsigned long long)qp->q_cnt_4, qp->q_mode); 3252 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3253 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3254 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3255 qp->queue_id, qp->entry_count, qp->entry_size, 3256 qp->host_index, qp->hba_index, qp->entry_repost); 3257 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3258 3259 return len; 3260 } 3261 3262 /** 3263 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 3264 * @file: The file pointer to read from. 3265 * @buf: The buffer to copy the data to. 3266 * @nbytes: The number of bytes to read. 3267 * @ppos: The position in the file to start reading from. 3268 * 3269 * Description: 3270 * This routine reads data from the @phba SLI4 PCI function queue information, 3271 * and copies to user @buf. 3272 * This routine only returns 1 EQs worth of information. It remembers the last 3273 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 3274 * retrieve all EQs allocated for the phba. 3275 * 3276 * Returns: 3277 * This function returns the amount of data that was read (this could be less 3278 * than @nbytes if the end of the file was reached) or a negative error value. 3279 **/ 3280 static ssize_t 3281 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 3282 loff_t *ppos) 3283 { 3284 struct lpfc_debug *debug = file->private_data; 3285 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3286 char *pbuffer; 3287 int max_cnt, rc, x, len = 0; 3288 struct lpfc_queue *qp = NULL; 3289 3290 if (!debug->buffer) 3291 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 3292 if (!debug->buffer) 3293 return 0; 3294 pbuffer = debug->buffer; 3295 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 3296 3297 if (*ppos) 3298 return 0; 3299 3300 spin_lock_irq(&phba->hbalock); 3301 3302 /* Fast-path event queue */ 3303 if (phba->sli4_hba.hba_eq && phba->io_channel_irqs) { 3304 3305 x = phba->lpfc_idiag_last_eq; 3306 if (phba->cfg_fof && (x >= phba->io_channel_irqs)) { 3307 phba->lpfc_idiag_last_eq = 0; 3308 goto fof; 3309 } 3310 phba->lpfc_idiag_last_eq++; 3311 if (phba->lpfc_idiag_last_eq >= phba->io_channel_irqs) 3312 if (phba->cfg_fof == 0) 3313 phba->lpfc_idiag_last_eq = 0; 3314 3315 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3316 "EQ %d out of %d HBA EQs\n", 3317 x, phba->io_channel_irqs); 3318 3319 /* Fast-path EQ */ 3320 qp = phba->sli4_hba.hba_eq[x]; 3321 if (!qp) 3322 goto out; 3323 3324 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 3325 3326 /* Reset max counter */ 3327 qp->EQ_max_eqe = 0; 3328 3329 if (len >= max_cnt) 3330 goto too_big; 3331 3332 /* will dump both fcp and nvme cqs/wqs for the eq */ 3333 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 3334 max_cnt, x, qp->queue_id); 3335 if (rc) 3336 goto too_big; 3337 3338 /* Only EQ 0 has slow path CQs configured */ 3339 if (x) 3340 goto out; 3341 3342 /* Slow-path mailbox CQ */ 3343 qp = phba->sli4_hba.mbx_cq; 3344 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 3345 if (len >= max_cnt) 3346 goto too_big; 3347 3348 /* Slow-path MBOX MQ */ 3349 qp = phba->sli4_hba.mbx_wq; 3350 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 3351 if (len >= max_cnt) 3352 goto too_big; 3353 3354 /* Slow-path ELS response CQ */ 3355 qp = phba->sli4_hba.els_cq; 3356 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 3357 /* Reset max counter */ 3358 if (qp) 3359 qp->CQ_max_cqe = 0; 3360 if (len >= max_cnt) 3361 goto too_big; 3362 3363 /* Slow-path ELS WQ */ 3364 qp = phba->sli4_hba.els_wq; 3365 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 3366 if (len >= max_cnt) 3367 goto too_big; 3368 3369 /* Slow-path NVME LS response CQ */ 3370 qp = phba->sli4_hba.nvmels_cq; 3371 len = __lpfc_idiag_print_cq(qp, "NVME LS", 3372 pbuffer, len); 3373 /* Reset max counter */ 3374 if (qp) 3375 qp->CQ_max_cqe = 0; 3376 if (len >= max_cnt) 3377 goto too_big; 3378 3379 /* Slow-path NVME LS WQ */ 3380 qp = phba->sli4_hba.nvmels_wq; 3381 len = __lpfc_idiag_print_wq(qp, "NVME LS", 3382 pbuffer, len); 3383 if (len >= max_cnt) 3384 goto too_big; 3385 3386 qp = phba->sli4_hba.hdr_rq; 3387 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 3388 "RQpair", pbuffer, len); 3389 if (len >= max_cnt) 3390 goto too_big; 3391 3392 goto out; 3393 } 3394 3395 fof: 3396 if (phba->cfg_fof) { 3397 /* FOF EQ */ 3398 qp = phba->sli4_hba.fof_eq; 3399 len = __lpfc_idiag_print_eq(qp, "FOF", pbuffer, len); 3400 3401 /* Reset max counter */ 3402 if (qp) 3403 qp->EQ_max_eqe = 0; 3404 3405 if (len >= max_cnt) 3406 goto too_big; 3407 3408 /* OAS CQ */ 3409 qp = phba->sli4_hba.oas_cq; 3410 len = __lpfc_idiag_print_cq(qp, "OAS", pbuffer, len); 3411 /* Reset max counter */ 3412 if (qp) 3413 qp->CQ_max_cqe = 0; 3414 if (len >= max_cnt) 3415 goto too_big; 3416 3417 /* OAS WQ */ 3418 qp = phba->sli4_hba.oas_wq; 3419 len = __lpfc_idiag_print_wq(qp, "OAS", pbuffer, len); 3420 if (len >= max_cnt) 3421 goto too_big; 3422 } 3423 3424 spin_unlock_irq(&phba->hbalock); 3425 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3426 3427 too_big: 3428 len += snprintf(pbuffer + len, 3429 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 3430 out: 3431 spin_unlock_irq(&phba->hbalock); 3432 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3433 } 3434 3435 /** 3436 * lpfc_idiag_que_param_check - queue access command parameter sanity check 3437 * @q: The pointer to queue structure. 3438 * @index: The index into a queue entry. 3439 * @count: The number of queue entries to access. 3440 * 3441 * Description: 3442 * The routine performs sanity check on device queue access method commands. 3443 * 3444 * Returns: 3445 * This function returns -EINVAL when fails the sanity check, otherwise, it 3446 * returns 0. 3447 **/ 3448 static int 3449 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 3450 { 3451 /* Only support single entry read or browsing */ 3452 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 3453 return -EINVAL; 3454 if (index > q->entry_count - 1) 3455 return -EINVAL; 3456 return 0; 3457 } 3458 3459 /** 3460 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 3461 * @pbuffer: The pointer to buffer to copy the read data into. 3462 * @pque: The pointer to the queue to be read. 3463 * @index: The index into the queue entry. 3464 * 3465 * Description: 3466 * This routine reads out a single entry from the given queue's index location 3467 * and copies it into the buffer provided. 3468 * 3469 * Returns: 3470 * This function returns 0 when it fails, otherwise, it returns the length of 3471 * the data read into the buffer provided. 3472 **/ 3473 static int 3474 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 3475 uint32_t index) 3476 { 3477 int offset, esize; 3478 uint32_t *pentry; 3479 3480 if (!pbuffer || !pque) 3481 return 0; 3482 3483 esize = pque->entry_size; 3484 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3485 "QE-INDEX[%04d]:\n", index); 3486 3487 offset = 0; 3488 pentry = pque->qe[index].address; 3489 while (esize > 0) { 3490 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3491 "%08x ", *pentry); 3492 pentry++; 3493 offset += sizeof(uint32_t); 3494 esize -= sizeof(uint32_t); 3495 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 3496 len += snprintf(pbuffer+len, 3497 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3498 } 3499 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3500 3501 return len; 3502 } 3503 3504 /** 3505 * lpfc_idiag_queacc_read - idiag debugfs read port queue 3506 * @file: The file pointer to read from. 3507 * @buf: The buffer to copy the data to. 3508 * @nbytes: The number of bytes to read. 3509 * @ppos: The position in the file to start reading from. 3510 * 3511 * Description: 3512 * This routine reads data from the @phba device queue memory according to the 3513 * idiag command, and copies to user @buf. Depending on the queue dump read 3514 * command setup, it does either a single queue entry read or browing through 3515 * all entries of the queue. 3516 * 3517 * Returns: 3518 * This function returns the amount of data that was read (this could be less 3519 * than @nbytes if the end of the file was reached) or a negative error value. 3520 **/ 3521 static ssize_t 3522 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 3523 loff_t *ppos) 3524 { 3525 struct lpfc_debug *debug = file->private_data; 3526 uint32_t last_index, index, count; 3527 struct lpfc_queue *pque = NULL; 3528 char *pbuffer; 3529 int len = 0; 3530 3531 /* This is a user read operation */ 3532 debug->op = LPFC_IDIAG_OP_RD; 3533 3534 if (!debug->buffer) 3535 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 3536 if (!debug->buffer) 3537 return 0; 3538 pbuffer = debug->buffer; 3539 3540 if (*ppos) 3541 return 0; 3542 3543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3544 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3545 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3546 pque = (struct lpfc_queue *)idiag.ptr_private; 3547 } else 3548 return 0; 3549 3550 /* Browse the queue starting from index */ 3551 if (count == LPFC_QUE_ACC_BROWSE) 3552 goto que_browse; 3553 3554 /* Read a single entry from the queue */ 3555 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3556 3557 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3558 3559 que_browse: 3560 3561 /* Browse all entries from the queue */ 3562 last_index = idiag.offset.last_rd; 3563 index = last_index; 3564 3565 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 3566 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3567 index++; 3568 if (index > pque->entry_count - 1) 3569 break; 3570 } 3571 3572 /* Set up the offset for next portion of pci cfg read */ 3573 if (index > pque->entry_count - 1) 3574 index = 0; 3575 idiag.offset.last_rd = index; 3576 3577 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3578 } 3579 3580 /** 3581 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 3582 * @file: The file pointer to read from. 3583 * @buf: The buffer to copy the user data from. 3584 * @nbytes: The number of bytes to get. 3585 * @ppos: The position in the file to start reading from. 3586 * 3587 * This routine get the debugfs idiag command struct from user space and then 3588 * perform the syntax check for port queue read (dump) or write (set) command 3589 * accordingly. In the case of port queue read command, it sets up the command 3590 * in the idiag command struct for the following debugfs read operation. In 3591 * the case of port queue write operation, it executes the write operation 3592 * into the port queue entry accordingly. 3593 * 3594 * It returns the @nbytges passing in from debugfs user space when successful. 3595 * In case of error conditions, it returns proper error code back to the user 3596 * space. 3597 **/ 3598 static ssize_t 3599 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 3600 size_t nbytes, loff_t *ppos) 3601 { 3602 struct lpfc_debug *debug = file->private_data; 3603 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3604 uint32_t qidx, quetp, queid, index, count, offset, value; 3605 uint32_t *pentry; 3606 struct lpfc_queue *pque, *qp; 3607 int rc; 3608 3609 /* This is a user write operation */ 3610 debug->op = LPFC_IDIAG_OP_WR; 3611 3612 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3613 if (rc < 0) 3614 return rc; 3615 3616 /* Get and sanity check on command feilds */ 3617 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 3618 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 3619 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3620 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3621 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 3622 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 3623 3624 /* Sanity check on command line arguments */ 3625 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3626 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3627 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3628 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 3629 goto error_out; 3630 if (count != 1) 3631 goto error_out; 3632 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3633 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 3634 goto error_out; 3635 } else 3636 goto error_out; 3637 3638 switch (quetp) { 3639 case LPFC_IDIAG_EQ: 3640 /* HBA event queue */ 3641 if (phba->sli4_hba.hba_eq) { 3642 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) { 3643 qp = phba->sli4_hba.hba_eq[qidx]; 3644 if (qp && qp->queue_id == queid) { 3645 /* Sanity check */ 3646 rc = lpfc_idiag_que_param_check(qp, 3647 index, count); 3648 if (rc) 3649 goto error_out; 3650 idiag.ptr_private = qp; 3651 goto pass_check; 3652 } 3653 } 3654 } 3655 goto error_out; 3656 break; 3657 case LPFC_IDIAG_CQ: 3658 /* MBX complete queue */ 3659 if (phba->sli4_hba.mbx_cq && 3660 phba->sli4_hba.mbx_cq->queue_id == queid) { 3661 /* Sanity check */ 3662 rc = lpfc_idiag_que_param_check( 3663 phba->sli4_hba.mbx_cq, index, count); 3664 if (rc) 3665 goto error_out; 3666 idiag.ptr_private = phba->sli4_hba.mbx_cq; 3667 goto pass_check; 3668 } 3669 /* ELS complete queue */ 3670 if (phba->sli4_hba.els_cq && 3671 phba->sli4_hba.els_cq->queue_id == queid) { 3672 /* Sanity check */ 3673 rc = lpfc_idiag_que_param_check( 3674 phba->sli4_hba.els_cq, index, count); 3675 if (rc) 3676 goto error_out; 3677 idiag.ptr_private = phba->sli4_hba.els_cq; 3678 goto pass_check; 3679 } 3680 /* NVME LS complete queue */ 3681 if (phba->sli4_hba.nvmels_cq && 3682 phba->sli4_hba.nvmels_cq->queue_id == queid) { 3683 /* Sanity check */ 3684 rc = lpfc_idiag_que_param_check( 3685 phba->sli4_hba.nvmels_cq, index, count); 3686 if (rc) 3687 goto error_out; 3688 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 3689 goto pass_check; 3690 } 3691 /* FCP complete queue */ 3692 if (phba->sli4_hba.fcp_cq) { 3693 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3694 qidx++) { 3695 qp = phba->sli4_hba.fcp_cq[qidx]; 3696 if (qp && qp->queue_id == queid) { 3697 /* Sanity check */ 3698 rc = lpfc_idiag_que_param_check( 3699 qp, index, count); 3700 if (rc) 3701 goto error_out; 3702 idiag.ptr_private = qp; 3703 goto pass_check; 3704 } 3705 } 3706 } 3707 /* NVME complete queue */ 3708 if (phba->sli4_hba.nvme_cq) { 3709 qidx = 0; 3710 do { 3711 if (phba->sli4_hba.nvme_cq[qidx] && 3712 phba->sli4_hba.nvme_cq[qidx]->queue_id == 3713 queid) { 3714 /* Sanity check */ 3715 rc = lpfc_idiag_que_param_check( 3716 phba->sli4_hba.nvme_cq[qidx], 3717 index, count); 3718 if (rc) 3719 goto error_out; 3720 idiag.ptr_private = 3721 phba->sli4_hba.nvme_cq[qidx]; 3722 goto pass_check; 3723 } 3724 } while (++qidx < phba->cfg_nvme_io_channel); 3725 } 3726 goto error_out; 3727 break; 3728 case LPFC_IDIAG_MQ: 3729 /* MBX work queue */ 3730 if (phba->sli4_hba.mbx_wq && 3731 phba->sli4_hba.mbx_wq->queue_id == queid) { 3732 /* Sanity check */ 3733 rc = lpfc_idiag_que_param_check( 3734 phba->sli4_hba.mbx_wq, index, count); 3735 if (rc) 3736 goto error_out; 3737 idiag.ptr_private = phba->sli4_hba.mbx_wq; 3738 goto pass_check; 3739 } 3740 goto error_out; 3741 break; 3742 case LPFC_IDIAG_WQ: 3743 /* ELS work queue */ 3744 if (phba->sli4_hba.els_wq && 3745 phba->sli4_hba.els_wq->queue_id == queid) { 3746 /* Sanity check */ 3747 rc = lpfc_idiag_que_param_check( 3748 phba->sli4_hba.els_wq, index, count); 3749 if (rc) 3750 goto error_out; 3751 idiag.ptr_private = phba->sli4_hba.els_wq; 3752 goto pass_check; 3753 } 3754 /* NVME LS work queue */ 3755 if (phba->sli4_hba.nvmels_wq && 3756 phba->sli4_hba.nvmels_wq->queue_id == queid) { 3757 /* Sanity check */ 3758 rc = lpfc_idiag_que_param_check( 3759 phba->sli4_hba.nvmels_wq, index, count); 3760 if (rc) 3761 goto error_out; 3762 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 3763 goto pass_check; 3764 } 3765 /* FCP work queue */ 3766 if (phba->sli4_hba.fcp_wq) { 3767 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3768 qidx++) { 3769 qp = phba->sli4_hba.fcp_wq[qidx]; 3770 if (qp && qp->queue_id == queid) { 3771 /* Sanity check */ 3772 rc = lpfc_idiag_que_param_check( 3773 qp, index, count); 3774 if (rc) 3775 goto error_out; 3776 idiag.ptr_private = qp; 3777 goto pass_check; 3778 } 3779 } 3780 } 3781 /* NVME work queue */ 3782 if (phba->sli4_hba.nvme_wq) { 3783 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3784 qidx++) { 3785 qp = phba->sli4_hba.nvme_wq[qidx]; 3786 if (qp && qp->queue_id == queid) { 3787 /* Sanity check */ 3788 rc = lpfc_idiag_que_param_check( 3789 qp, index, count); 3790 if (rc) 3791 goto error_out; 3792 idiag.ptr_private = qp; 3793 goto pass_check; 3794 } 3795 } 3796 } 3797 3798 /* NVME work queues */ 3799 if (phba->sli4_hba.nvme_wq) { 3800 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3801 qidx++) { 3802 if (!phba->sli4_hba.nvme_wq[qidx]) 3803 continue; 3804 if (phba->sli4_hba.nvme_wq[qidx]->queue_id == 3805 queid) { 3806 /* Sanity check */ 3807 rc = lpfc_idiag_que_param_check( 3808 phba->sli4_hba.nvme_wq[qidx], 3809 index, count); 3810 if (rc) 3811 goto error_out; 3812 idiag.ptr_private = 3813 phba->sli4_hba.nvme_wq[qidx]; 3814 goto pass_check; 3815 } 3816 } 3817 } 3818 goto error_out; 3819 break; 3820 case LPFC_IDIAG_RQ: 3821 /* HDR queue */ 3822 if (phba->sli4_hba.hdr_rq && 3823 phba->sli4_hba.hdr_rq->queue_id == queid) { 3824 /* Sanity check */ 3825 rc = lpfc_idiag_que_param_check( 3826 phba->sli4_hba.hdr_rq, index, count); 3827 if (rc) 3828 goto error_out; 3829 idiag.ptr_private = phba->sli4_hba.hdr_rq; 3830 goto pass_check; 3831 } 3832 /* DAT queue */ 3833 if (phba->sli4_hba.dat_rq && 3834 phba->sli4_hba.dat_rq->queue_id == queid) { 3835 /* Sanity check */ 3836 rc = lpfc_idiag_que_param_check( 3837 phba->sli4_hba.dat_rq, index, count); 3838 if (rc) 3839 goto error_out; 3840 idiag.ptr_private = phba->sli4_hba.dat_rq; 3841 goto pass_check; 3842 } 3843 goto error_out; 3844 break; 3845 default: 3846 goto error_out; 3847 break; 3848 } 3849 3850 pass_check: 3851 3852 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3853 if (count == LPFC_QUE_ACC_BROWSE) 3854 idiag.offset.last_rd = index; 3855 } 3856 3857 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3858 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3859 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3860 /* Additional sanity checks on write operation */ 3861 pque = (struct lpfc_queue *)idiag.ptr_private; 3862 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 3863 goto error_out; 3864 pentry = pque->qe[index].address; 3865 pentry += offset; 3866 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 3867 *pentry = value; 3868 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 3869 *pentry |= value; 3870 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 3871 *pentry &= ~value; 3872 } 3873 return nbytes; 3874 3875 error_out: 3876 /* Clean out command structure on command error out */ 3877 memset(&idiag, 0, sizeof(idiag)); 3878 return -EINVAL; 3879 } 3880 3881 /** 3882 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 3883 * @phba: The pointer to hba structure. 3884 * @pbuffer: The pointer to the buffer to copy the data to. 3885 * @len: The lenght of bytes to copied. 3886 * @drbregid: The id to doorbell registers. 3887 * 3888 * Description: 3889 * This routine reads a doorbell register and copies its content to the 3890 * user buffer pointed to by @pbuffer. 3891 * 3892 * Returns: 3893 * This function returns the amount of data that was copied into @pbuffer. 3894 **/ 3895 static int 3896 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 3897 int len, uint32_t drbregid) 3898 { 3899 3900 if (!pbuffer) 3901 return 0; 3902 3903 switch (drbregid) { 3904 case LPFC_DRB_EQCQ: 3905 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3906 "EQCQ-DRB-REG: 0x%08x\n", 3907 readl(phba->sli4_hba.EQCQDBregaddr)); 3908 break; 3909 case LPFC_DRB_MQ: 3910 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3911 "MQ-DRB-REG: 0x%08x\n", 3912 readl(phba->sli4_hba.MQDBregaddr)); 3913 break; 3914 case LPFC_DRB_WQ: 3915 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3916 "WQ-DRB-REG: 0x%08x\n", 3917 readl(phba->sli4_hba.WQDBregaddr)); 3918 break; 3919 case LPFC_DRB_RQ: 3920 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3921 "RQ-DRB-REG: 0x%08x\n", 3922 readl(phba->sli4_hba.RQDBregaddr)); 3923 break; 3924 default: 3925 break; 3926 } 3927 3928 return len; 3929 } 3930 3931 /** 3932 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 3933 * @file: The file pointer to read from. 3934 * @buf: The buffer to copy the data to. 3935 * @nbytes: The number of bytes to read. 3936 * @ppos: The position in the file to start reading from. 3937 * 3938 * Description: 3939 * This routine reads data from the @phba device doorbell register according 3940 * to the idiag command, and copies to user @buf. Depending on the doorbell 3941 * register read command setup, it does either a single doorbell register 3942 * read or dump all doorbell registers. 3943 * 3944 * Returns: 3945 * This function returns the amount of data that was read (this could be less 3946 * than @nbytes if the end of the file was reached) or a negative error value. 3947 **/ 3948 static ssize_t 3949 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 3950 loff_t *ppos) 3951 { 3952 struct lpfc_debug *debug = file->private_data; 3953 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3954 uint32_t drb_reg_id, i; 3955 char *pbuffer; 3956 int len = 0; 3957 3958 /* This is a user read operation */ 3959 debug->op = LPFC_IDIAG_OP_RD; 3960 3961 if (!debug->buffer) 3962 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 3963 if (!debug->buffer) 3964 return 0; 3965 pbuffer = debug->buffer; 3966 3967 if (*ppos) 3968 return 0; 3969 3970 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 3971 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 3972 else 3973 return 0; 3974 3975 if (drb_reg_id == LPFC_DRB_ACC_ALL) 3976 for (i = 1; i <= LPFC_DRB_MAX; i++) 3977 len = lpfc_idiag_drbacc_read_reg(phba, 3978 pbuffer, len, i); 3979 else 3980 len = lpfc_idiag_drbacc_read_reg(phba, 3981 pbuffer, len, drb_reg_id); 3982 3983 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3984 } 3985 3986 /** 3987 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 3988 * @file: The file pointer to read from. 3989 * @buf: The buffer to copy the user data from. 3990 * @nbytes: The number of bytes to get. 3991 * @ppos: The position in the file to start reading from. 3992 * 3993 * This routine get the debugfs idiag command struct from user space and then 3994 * perform the syntax check for port doorbell register read (dump) or write 3995 * (set) command accordingly. In the case of port queue read command, it sets 3996 * up the command in the idiag command struct for the following debugfs read 3997 * operation. In the case of port doorbell register write operation, it 3998 * executes the write operation into the port doorbell register accordingly. 3999 * 4000 * It returns the @nbytges passing in from debugfs user space when successful. 4001 * In case of error conditions, it returns proper error code back to the user 4002 * space. 4003 **/ 4004 static ssize_t 4005 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4006 size_t nbytes, loff_t *ppos) 4007 { 4008 struct lpfc_debug *debug = file->private_data; 4009 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4010 uint32_t drb_reg_id, value, reg_val = 0; 4011 void __iomem *drb_reg; 4012 int rc; 4013 4014 /* This is a user write operation */ 4015 debug->op = LPFC_IDIAG_OP_WR; 4016 4017 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4018 if (rc < 0) 4019 return rc; 4020 4021 /* Sanity check on command line arguments */ 4022 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4023 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4024 4025 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4026 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4027 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4028 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4029 goto error_out; 4030 if (drb_reg_id > LPFC_DRB_MAX) 4031 goto error_out; 4032 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4033 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4034 goto error_out; 4035 if ((drb_reg_id > LPFC_DRB_MAX) && 4036 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4037 goto error_out; 4038 } else 4039 goto error_out; 4040 4041 /* Perform the write access operation */ 4042 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4043 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4044 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4045 switch (drb_reg_id) { 4046 case LPFC_DRB_EQCQ: 4047 drb_reg = phba->sli4_hba.EQCQDBregaddr; 4048 break; 4049 case LPFC_DRB_MQ: 4050 drb_reg = phba->sli4_hba.MQDBregaddr; 4051 break; 4052 case LPFC_DRB_WQ: 4053 drb_reg = phba->sli4_hba.WQDBregaddr; 4054 break; 4055 case LPFC_DRB_RQ: 4056 drb_reg = phba->sli4_hba.RQDBregaddr; 4057 break; 4058 default: 4059 goto error_out; 4060 } 4061 4062 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4063 reg_val = value; 4064 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4065 reg_val = readl(drb_reg); 4066 reg_val |= value; 4067 } 4068 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4069 reg_val = readl(drb_reg); 4070 reg_val &= ~value; 4071 } 4072 writel(reg_val, drb_reg); 4073 readl(drb_reg); /* flush */ 4074 } 4075 return nbytes; 4076 4077 error_out: 4078 /* Clean out command structure on command error out */ 4079 memset(&idiag, 0, sizeof(idiag)); 4080 return -EINVAL; 4081 } 4082 4083 /** 4084 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4085 * @phba: The pointer to hba structure. 4086 * @pbuffer: The pointer to the buffer to copy the data to. 4087 * @len: The lenght of bytes to copied. 4088 * @drbregid: The id to doorbell registers. 4089 * 4090 * Description: 4091 * This routine reads a control register and copies its content to the 4092 * user buffer pointed to by @pbuffer. 4093 * 4094 * Returns: 4095 * This function returns the amount of data that was copied into @pbuffer. 4096 **/ 4097 static int 4098 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4099 int len, uint32_t ctlregid) 4100 { 4101 4102 if (!pbuffer) 4103 return 0; 4104 4105 switch (ctlregid) { 4106 case LPFC_CTL_PORT_SEM: 4107 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4108 "Port SemReg: 0x%08x\n", 4109 readl(phba->sli4_hba.conf_regs_memmap_p + 4110 LPFC_CTL_PORT_SEM_OFFSET)); 4111 break; 4112 case LPFC_CTL_PORT_STA: 4113 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4114 "Port StaReg: 0x%08x\n", 4115 readl(phba->sli4_hba.conf_regs_memmap_p + 4116 LPFC_CTL_PORT_STA_OFFSET)); 4117 break; 4118 case LPFC_CTL_PORT_CTL: 4119 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4120 "Port CtlReg: 0x%08x\n", 4121 readl(phba->sli4_hba.conf_regs_memmap_p + 4122 LPFC_CTL_PORT_CTL_OFFSET)); 4123 break; 4124 case LPFC_CTL_PORT_ER1: 4125 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4126 "Port Er1Reg: 0x%08x\n", 4127 readl(phba->sli4_hba.conf_regs_memmap_p + 4128 LPFC_CTL_PORT_ER1_OFFSET)); 4129 break; 4130 case LPFC_CTL_PORT_ER2: 4131 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4132 "Port Er2Reg: 0x%08x\n", 4133 readl(phba->sli4_hba.conf_regs_memmap_p + 4134 LPFC_CTL_PORT_ER2_OFFSET)); 4135 break; 4136 case LPFC_CTL_PDEV_CTL: 4137 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4138 "PDev CtlReg: 0x%08x\n", 4139 readl(phba->sli4_hba.conf_regs_memmap_p + 4140 LPFC_CTL_PDEV_CTL_OFFSET)); 4141 break; 4142 default: 4143 break; 4144 } 4145 return len; 4146 } 4147 4148 /** 4149 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4150 * @file: The file pointer to read from. 4151 * @buf: The buffer to copy the data to. 4152 * @nbytes: The number of bytes to read. 4153 * @ppos: The position in the file to start reading from. 4154 * 4155 * Description: 4156 * This routine reads data from the @phba port and device registers according 4157 * to the idiag command, and copies to user @buf. 4158 * 4159 * Returns: 4160 * This function returns the amount of data that was read (this could be less 4161 * than @nbytes if the end of the file was reached) or a negative error value. 4162 **/ 4163 static ssize_t 4164 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4165 loff_t *ppos) 4166 { 4167 struct lpfc_debug *debug = file->private_data; 4168 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4169 uint32_t ctl_reg_id, i; 4170 char *pbuffer; 4171 int len = 0; 4172 4173 /* This is a user read operation */ 4174 debug->op = LPFC_IDIAG_OP_RD; 4175 4176 if (!debug->buffer) 4177 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4178 if (!debug->buffer) 4179 return 0; 4180 pbuffer = debug->buffer; 4181 4182 if (*ppos) 4183 return 0; 4184 4185 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4186 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4187 else 4188 return 0; 4189 4190 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4191 for (i = 1; i <= LPFC_CTL_MAX; i++) 4192 len = lpfc_idiag_ctlacc_read_reg(phba, 4193 pbuffer, len, i); 4194 else 4195 len = lpfc_idiag_ctlacc_read_reg(phba, 4196 pbuffer, len, ctl_reg_id); 4197 4198 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4199 } 4200 4201 /** 4202 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4203 * @file: The file pointer to read from. 4204 * @buf: The buffer to copy the user data from. 4205 * @nbytes: The number of bytes to get. 4206 * @ppos: The position in the file to start reading from. 4207 * 4208 * This routine get the debugfs idiag command struct from user space and then 4209 * perform the syntax check for port and device control register read (dump) 4210 * or write (set) command accordingly. 4211 * 4212 * It returns the @nbytges passing in from debugfs user space when successful. 4213 * In case of error conditions, it returns proper error code back to the user 4214 * space. 4215 **/ 4216 static ssize_t 4217 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4218 size_t nbytes, loff_t *ppos) 4219 { 4220 struct lpfc_debug *debug = file->private_data; 4221 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4222 uint32_t ctl_reg_id, value, reg_val = 0; 4223 void __iomem *ctl_reg; 4224 int rc; 4225 4226 /* This is a user write operation */ 4227 debug->op = LPFC_IDIAG_OP_WR; 4228 4229 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4230 if (rc < 0) 4231 return rc; 4232 4233 /* Sanity check on command line arguments */ 4234 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4235 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4236 4237 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4238 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4239 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4240 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4241 goto error_out; 4242 if (ctl_reg_id > LPFC_CTL_MAX) 4243 goto error_out; 4244 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4245 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4246 goto error_out; 4247 if ((ctl_reg_id > LPFC_CTL_MAX) && 4248 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4249 goto error_out; 4250 } else 4251 goto error_out; 4252 4253 /* Perform the write access operation */ 4254 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4255 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4256 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4257 switch (ctl_reg_id) { 4258 case LPFC_CTL_PORT_SEM: 4259 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4260 LPFC_CTL_PORT_SEM_OFFSET; 4261 break; 4262 case LPFC_CTL_PORT_STA: 4263 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4264 LPFC_CTL_PORT_STA_OFFSET; 4265 break; 4266 case LPFC_CTL_PORT_CTL: 4267 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4268 LPFC_CTL_PORT_CTL_OFFSET; 4269 break; 4270 case LPFC_CTL_PORT_ER1: 4271 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4272 LPFC_CTL_PORT_ER1_OFFSET; 4273 break; 4274 case LPFC_CTL_PORT_ER2: 4275 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4276 LPFC_CTL_PORT_ER2_OFFSET; 4277 break; 4278 case LPFC_CTL_PDEV_CTL: 4279 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4280 LPFC_CTL_PDEV_CTL_OFFSET; 4281 break; 4282 default: 4283 goto error_out; 4284 } 4285 4286 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4287 reg_val = value; 4288 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4289 reg_val = readl(ctl_reg); 4290 reg_val |= value; 4291 } 4292 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4293 reg_val = readl(ctl_reg); 4294 reg_val &= ~value; 4295 } 4296 writel(reg_val, ctl_reg); 4297 readl(ctl_reg); /* flush */ 4298 } 4299 return nbytes; 4300 4301 error_out: 4302 /* Clean out command structure on command error out */ 4303 memset(&idiag, 0, sizeof(idiag)); 4304 return -EINVAL; 4305 } 4306 4307 /** 4308 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4309 * @phba: Pointer to HBA context object. 4310 * @pbuffer: Pointer to data buffer. 4311 * 4312 * Description: 4313 * This routine gets the driver mailbox access debugfs setup information. 4314 * 4315 * Returns: 4316 * This function returns the amount of data that was read (this could be less 4317 * than @nbytes if the end of the file was reached) or a negative error value. 4318 **/ 4319 static int 4320 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 4321 { 4322 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4323 int len = 0; 4324 4325 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4326 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4327 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4328 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4329 4330 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4331 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 4332 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4333 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 4334 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4335 "mbx_word_cnt: %04d\n", mbx_word_cnt); 4336 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4337 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 4338 4339 return len; 4340 } 4341 4342 /** 4343 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 4344 * @file: The file pointer to read from. 4345 * @buf: The buffer to copy the data to. 4346 * @nbytes: The number of bytes to read. 4347 * @ppos: The position in the file to start reading from. 4348 * 4349 * Description: 4350 * This routine reads data from the @phba driver mailbox access debugfs setup 4351 * information. 4352 * 4353 * Returns: 4354 * This function returns the amount of data that was read (this could be less 4355 * than @nbytes if the end of the file was reached) or a negative error value. 4356 **/ 4357 static ssize_t 4358 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 4359 loff_t *ppos) 4360 { 4361 struct lpfc_debug *debug = file->private_data; 4362 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4363 char *pbuffer; 4364 int len = 0; 4365 4366 /* This is a user read operation */ 4367 debug->op = LPFC_IDIAG_OP_RD; 4368 4369 if (!debug->buffer) 4370 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 4371 if (!debug->buffer) 4372 return 0; 4373 pbuffer = debug->buffer; 4374 4375 if (*ppos) 4376 return 0; 4377 4378 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 4379 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 4380 return 0; 4381 4382 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 4383 4384 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4385 } 4386 4387 /** 4388 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 4389 * @file: The file pointer to read from. 4390 * @buf: The buffer to copy the user data from. 4391 * @nbytes: The number of bytes to get. 4392 * @ppos: The position in the file to start reading from. 4393 * 4394 * This routine get the debugfs idiag command struct from user space and then 4395 * perform the syntax check for driver mailbox command (dump) and sets up the 4396 * necessary states in the idiag command struct accordingly. 4397 * 4398 * It returns the @nbytges passing in from debugfs user space when successful. 4399 * In case of error conditions, it returns proper error code back to the user 4400 * space. 4401 **/ 4402 static ssize_t 4403 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 4404 size_t nbytes, loff_t *ppos) 4405 { 4406 struct lpfc_debug *debug = file->private_data; 4407 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4408 int rc; 4409 4410 /* This is a user write operation */ 4411 debug->op = LPFC_IDIAG_OP_WR; 4412 4413 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4414 if (rc < 0) 4415 return rc; 4416 4417 /* Sanity check on command line arguments */ 4418 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4419 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4420 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4421 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4422 4423 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 4424 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 4425 goto error_out; 4426 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 4427 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4428 goto error_out; 4429 if (mbx_word_cnt > sizeof(MAILBOX_t)) 4430 goto error_out; 4431 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 4432 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 4433 goto error_out; 4434 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 4435 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4436 goto error_out; 4437 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 4438 goto error_out; 4439 if (mbx_mbox_cmd != 0x9b) 4440 goto error_out; 4441 } else 4442 goto error_out; 4443 4444 if (mbx_word_cnt == 0) 4445 goto error_out; 4446 if (rc != LPFC_MBX_DMP_ARG) 4447 goto error_out; 4448 if (mbx_mbox_cmd & ~0xff) 4449 goto error_out; 4450 4451 /* condition for stop mailbox dump */ 4452 if (mbx_dump_cnt == 0) 4453 goto reset_out; 4454 4455 return nbytes; 4456 4457 reset_out: 4458 /* Clean out command structure on command error out */ 4459 memset(&idiag, 0, sizeof(idiag)); 4460 return nbytes; 4461 4462 error_out: 4463 /* Clean out command structure on command error out */ 4464 memset(&idiag, 0, sizeof(idiag)); 4465 return -EINVAL; 4466 } 4467 4468 /** 4469 * lpfc_idiag_extacc_avail_get - get the available extents information 4470 * @phba: pointer to lpfc hba data structure. 4471 * @pbuffer: pointer to internal buffer. 4472 * @len: length into the internal buffer data has been copied. 4473 * 4474 * Description: 4475 * This routine is to get the available extent information. 4476 * 4477 * Returns: 4478 * overall lenth of the data read into the internal buffer. 4479 **/ 4480 static int 4481 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 4482 { 4483 uint16_t ext_cnt, ext_size; 4484 4485 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4486 "\nAvailable Extents Information:\n"); 4487 4488 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4489 "\tPort Available VPI extents: "); 4490 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 4491 &ext_cnt, &ext_size); 4492 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4493 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4494 4495 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4496 "\tPort Available VFI extents: "); 4497 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 4498 &ext_cnt, &ext_size); 4499 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4500 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4501 4502 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4503 "\tPort Available RPI extents: "); 4504 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 4505 &ext_cnt, &ext_size); 4506 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4507 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4508 4509 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4510 "\tPort Available XRI extents: "); 4511 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 4512 &ext_cnt, &ext_size); 4513 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4514 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4515 4516 return len; 4517 } 4518 4519 /** 4520 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 4521 * @phba: pointer to lpfc hba data structure. 4522 * @pbuffer: pointer to internal buffer. 4523 * @len: length into the internal buffer data has been copied. 4524 * 4525 * Description: 4526 * This routine is to get the allocated extent information. 4527 * 4528 * Returns: 4529 * overall lenth of the data read into the internal buffer. 4530 **/ 4531 static int 4532 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 4533 { 4534 uint16_t ext_cnt, ext_size; 4535 int rc; 4536 4537 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4538 "\nAllocated Extents Information:\n"); 4539 4540 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4541 "\tHost Allocated VPI extents: "); 4542 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 4543 &ext_cnt, &ext_size); 4544 if (!rc) 4545 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4546 "Port %d Extent %3d, Size %3d\n", 4547 phba->brd_no, ext_cnt, ext_size); 4548 else 4549 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4550 "N/A\n"); 4551 4552 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4553 "\tHost Allocated VFI extents: "); 4554 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 4555 &ext_cnt, &ext_size); 4556 if (!rc) 4557 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4558 "Port %d Extent %3d, Size %3d\n", 4559 phba->brd_no, ext_cnt, ext_size); 4560 else 4561 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4562 "N/A\n"); 4563 4564 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4565 "\tHost Allocated RPI extents: "); 4566 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 4567 &ext_cnt, &ext_size); 4568 if (!rc) 4569 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4570 "Port %d Extent %3d, Size %3d\n", 4571 phba->brd_no, ext_cnt, ext_size); 4572 else 4573 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4574 "N/A\n"); 4575 4576 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4577 "\tHost Allocated XRI extents: "); 4578 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 4579 &ext_cnt, &ext_size); 4580 if (!rc) 4581 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4582 "Port %d Extent %3d, Size %3d\n", 4583 phba->brd_no, ext_cnt, ext_size); 4584 else 4585 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4586 "N/A\n"); 4587 4588 return len; 4589 } 4590 4591 /** 4592 * lpfc_idiag_extacc_drivr_get - get driver extent information 4593 * @phba: pointer to lpfc hba data structure. 4594 * @pbuffer: pointer to internal buffer. 4595 * @len: length into the internal buffer data has been copied. 4596 * 4597 * Description: 4598 * This routine is to get the driver extent information. 4599 * 4600 * Returns: 4601 * overall lenth of the data read into the internal buffer. 4602 **/ 4603 static int 4604 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 4605 { 4606 struct lpfc_rsrc_blks *rsrc_blks; 4607 int index; 4608 4609 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4610 "\nDriver Extents Information:\n"); 4611 4612 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4613 "\tVPI extents:\n"); 4614 index = 0; 4615 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 4616 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4617 "\t\tBlock %3d: Start %4d, Count %4d\n", 4618 index, rsrc_blks->rsrc_start, 4619 rsrc_blks->rsrc_size); 4620 index++; 4621 } 4622 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4623 "\tVFI extents:\n"); 4624 index = 0; 4625 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 4626 list) { 4627 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4628 "\t\tBlock %3d: Start %4d, Count %4d\n", 4629 index, rsrc_blks->rsrc_start, 4630 rsrc_blks->rsrc_size); 4631 index++; 4632 } 4633 4634 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4635 "\tRPI extents:\n"); 4636 index = 0; 4637 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 4638 list) { 4639 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4640 "\t\tBlock %3d: Start %4d, Count %4d\n", 4641 index, rsrc_blks->rsrc_start, 4642 rsrc_blks->rsrc_size); 4643 index++; 4644 } 4645 4646 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4647 "\tXRI extents:\n"); 4648 index = 0; 4649 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 4650 list) { 4651 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4652 "\t\tBlock %3d: Start %4d, Count %4d\n", 4653 index, rsrc_blks->rsrc_start, 4654 rsrc_blks->rsrc_size); 4655 index++; 4656 } 4657 4658 return len; 4659 } 4660 4661 /** 4662 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 4663 * @file: The file pointer to read from. 4664 * @buf: The buffer to copy the user data from. 4665 * @nbytes: The number of bytes to get. 4666 * @ppos: The position in the file to start reading from. 4667 * 4668 * This routine get the debugfs idiag command struct from user space and then 4669 * perform the syntax check for extent information access commands and sets 4670 * up the necessary states in the idiag command struct accordingly. 4671 * 4672 * It returns the @nbytges passing in from debugfs user space when successful. 4673 * In case of error conditions, it returns proper error code back to the user 4674 * space. 4675 **/ 4676 static ssize_t 4677 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 4678 size_t nbytes, loff_t *ppos) 4679 { 4680 struct lpfc_debug *debug = file->private_data; 4681 uint32_t ext_map; 4682 int rc; 4683 4684 /* This is a user write operation */ 4685 debug->op = LPFC_IDIAG_OP_WR; 4686 4687 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4688 if (rc < 0) 4689 return rc; 4690 4691 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4692 4693 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4694 goto error_out; 4695 if (rc != LPFC_EXT_ACC_CMD_ARG) 4696 goto error_out; 4697 if (!(ext_map & LPFC_EXT_ACC_ALL)) 4698 goto error_out; 4699 4700 return nbytes; 4701 error_out: 4702 /* Clean out command structure on command error out */ 4703 memset(&idiag, 0, sizeof(idiag)); 4704 return -EINVAL; 4705 } 4706 4707 /** 4708 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 4709 * @file: The file pointer to read from. 4710 * @buf: The buffer to copy the data to. 4711 * @nbytes: The number of bytes to read. 4712 * @ppos: The position in the file to start reading from. 4713 * 4714 * Description: 4715 * This routine reads data from the proper extent information according to 4716 * the idiag command, and copies to user @buf. 4717 * 4718 * Returns: 4719 * This function returns the amount of data that was read (this could be less 4720 * than @nbytes if the end of the file was reached) or a negative error value. 4721 **/ 4722 static ssize_t 4723 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 4724 loff_t *ppos) 4725 { 4726 struct lpfc_debug *debug = file->private_data; 4727 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4728 char *pbuffer; 4729 uint32_t ext_map; 4730 int len = 0; 4731 4732 /* This is a user read operation */ 4733 debug->op = LPFC_IDIAG_OP_RD; 4734 4735 if (!debug->buffer) 4736 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 4737 if (!debug->buffer) 4738 return 0; 4739 pbuffer = debug->buffer; 4740 if (*ppos) 4741 return 0; 4742 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4743 return 0; 4744 4745 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4746 if (ext_map & LPFC_EXT_ACC_AVAIL) 4747 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 4748 if (ext_map & LPFC_EXT_ACC_ALLOC) 4749 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 4750 if (ext_map & LPFC_EXT_ACC_DRIVR) 4751 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 4752 4753 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4754 } 4755 4756 #undef lpfc_debugfs_op_disc_trc 4757 static const struct file_operations lpfc_debugfs_op_disc_trc = { 4758 .owner = THIS_MODULE, 4759 .open = lpfc_debugfs_disc_trc_open, 4760 .llseek = lpfc_debugfs_lseek, 4761 .read = lpfc_debugfs_read, 4762 .release = lpfc_debugfs_release, 4763 }; 4764 4765 #undef lpfc_debugfs_op_nodelist 4766 static const struct file_operations lpfc_debugfs_op_nodelist = { 4767 .owner = THIS_MODULE, 4768 .open = lpfc_debugfs_nodelist_open, 4769 .llseek = lpfc_debugfs_lseek, 4770 .read = lpfc_debugfs_read, 4771 .release = lpfc_debugfs_release, 4772 }; 4773 4774 #undef lpfc_debugfs_op_hbqinfo 4775 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 4776 .owner = THIS_MODULE, 4777 .open = lpfc_debugfs_hbqinfo_open, 4778 .llseek = lpfc_debugfs_lseek, 4779 .read = lpfc_debugfs_read, 4780 .release = lpfc_debugfs_release, 4781 }; 4782 4783 #undef lpfc_debugfs_op_dumpHBASlim 4784 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 4785 .owner = THIS_MODULE, 4786 .open = lpfc_debugfs_dumpHBASlim_open, 4787 .llseek = lpfc_debugfs_lseek, 4788 .read = lpfc_debugfs_read, 4789 .release = lpfc_debugfs_release, 4790 }; 4791 4792 #undef lpfc_debugfs_op_dumpHostSlim 4793 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 4794 .owner = THIS_MODULE, 4795 .open = lpfc_debugfs_dumpHostSlim_open, 4796 .llseek = lpfc_debugfs_lseek, 4797 .read = lpfc_debugfs_read, 4798 .release = lpfc_debugfs_release, 4799 }; 4800 4801 #undef lpfc_debugfs_op_nvmestat 4802 static const struct file_operations lpfc_debugfs_op_nvmestat = { 4803 .owner = THIS_MODULE, 4804 .open = lpfc_debugfs_nvmestat_open, 4805 .llseek = lpfc_debugfs_lseek, 4806 .read = lpfc_debugfs_read, 4807 .write = lpfc_debugfs_nvmestat_write, 4808 .release = lpfc_debugfs_release, 4809 }; 4810 4811 #undef lpfc_debugfs_op_nvmektime 4812 static const struct file_operations lpfc_debugfs_op_nvmektime = { 4813 .owner = THIS_MODULE, 4814 .open = lpfc_debugfs_nvmektime_open, 4815 .llseek = lpfc_debugfs_lseek, 4816 .read = lpfc_debugfs_read, 4817 .write = lpfc_debugfs_nvmektime_write, 4818 .release = lpfc_debugfs_release, 4819 }; 4820 4821 #undef lpfc_debugfs_op_nvmeio_trc 4822 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 4823 .owner = THIS_MODULE, 4824 .open = lpfc_debugfs_nvmeio_trc_open, 4825 .llseek = lpfc_debugfs_lseek, 4826 .read = lpfc_debugfs_read, 4827 .write = lpfc_debugfs_nvmeio_trc_write, 4828 .release = lpfc_debugfs_release, 4829 }; 4830 4831 #undef lpfc_debugfs_op_cpucheck 4832 static const struct file_operations lpfc_debugfs_op_cpucheck = { 4833 .owner = THIS_MODULE, 4834 .open = lpfc_debugfs_cpucheck_open, 4835 .llseek = lpfc_debugfs_lseek, 4836 .read = lpfc_debugfs_read, 4837 .write = lpfc_debugfs_cpucheck_write, 4838 .release = lpfc_debugfs_release, 4839 }; 4840 4841 #undef lpfc_debugfs_op_dumpData 4842 static const struct file_operations lpfc_debugfs_op_dumpData = { 4843 .owner = THIS_MODULE, 4844 .open = lpfc_debugfs_dumpData_open, 4845 .llseek = lpfc_debugfs_lseek, 4846 .read = lpfc_debugfs_read, 4847 .write = lpfc_debugfs_dumpDataDif_write, 4848 .release = lpfc_debugfs_dumpDataDif_release, 4849 }; 4850 4851 #undef lpfc_debugfs_op_dumpDif 4852 static const struct file_operations lpfc_debugfs_op_dumpDif = { 4853 .owner = THIS_MODULE, 4854 .open = lpfc_debugfs_dumpDif_open, 4855 .llseek = lpfc_debugfs_lseek, 4856 .read = lpfc_debugfs_read, 4857 .write = lpfc_debugfs_dumpDataDif_write, 4858 .release = lpfc_debugfs_dumpDataDif_release, 4859 }; 4860 4861 #undef lpfc_debugfs_op_dif_err 4862 static const struct file_operations lpfc_debugfs_op_dif_err = { 4863 .owner = THIS_MODULE, 4864 .open = simple_open, 4865 .llseek = lpfc_debugfs_lseek, 4866 .read = lpfc_debugfs_dif_err_read, 4867 .write = lpfc_debugfs_dif_err_write, 4868 .release = lpfc_debugfs_dif_err_release, 4869 }; 4870 4871 #undef lpfc_debugfs_op_slow_ring_trc 4872 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 4873 .owner = THIS_MODULE, 4874 .open = lpfc_debugfs_slow_ring_trc_open, 4875 .llseek = lpfc_debugfs_lseek, 4876 .read = lpfc_debugfs_read, 4877 .release = lpfc_debugfs_release, 4878 }; 4879 4880 static struct dentry *lpfc_debugfs_root = NULL; 4881 static atomic_t lpfc_debugfs_hba_count; 4882 4883 /* 4884 * File operations for the iDiag debugfs 4885 */ 4886 #undef lpfc_idiag_op_pciCfg 4887 static const struct file_operations lpfc_idiag_op_pciCfg = { 4888 .owner = THIS_MODULE, 4889 .open = lpfc_idiag_open, 4890 .llseek = lpfc_debugfs_lseek, 4891 .read = lpfc_idiag_pcicfg_read, 4892 .write = lpfc_idiag_pcicfg_write, 4893 .release = lpfc_idiag_cmd_release, 4894 }; 4895 4896 #undef lpfc_idiag_op_barAcc 4897 static const struct file_operations lpfc_idiag_op_barAcc = { 4898 .owner = THIS_MODULE, 4899 .open = lpfc_idiag_open, 4900 .llseek = lpfc_debugfs_lseek, 4901 .read = lpfc_idiag_baracc_read, 4902 .write = lpfc_idiag_baracc_write, 4903 .release = lpfc_idiag_cmd_release, 4904 }; 4905 4906 #undef lpfc_idiag_op_queInfo 4907 static const struct file_operations lpfc_idiag_op_queInfo = { 4908 .owner = THIS_MODULE, 4909 .open = lpfc_idiag_open, 4910 .read = lpfc_idiag_queinfo_read, 4911 .release = lpfc_idiag_release, 4912 }; 4913 4914 #undef lpfc_idiag_op_queAcc 4915 static const struct file_operations lpfc_idiag_op_queAcc = { 4916 .owner = THIS_MODULE, 4917 .open = lpfc_idiag_open, 4918 .llseek = lpfc_debugfs_lseek, 4919 .read = lpfc_idiag_queacc_read, 4920 .write = lpfc_idiag_queacc_write, 4921 .release = lpfc_idiag_cmd_release, 4922 }; 4923 4924 #undef lpfc_idiag_op_drbAcc 4925 static const struct file_operations lpfc_idiag_op_drbAcc = { 4926 .owner = THIS_MODULE, 4927 .open = lpfc_idiag_open, 4928 .llseek = lpfc_debugfs_lseek, 4929 .read = lpfc_idiag_drbacc_read, 4930 .write = lpfc_idiag_drbacc_write, 4931 .release = lpfc_idiag_cmd_release, 4932 }; 4933 4934 #undef lpfc_idiag_op_ctlAcc 4935 static const struct file_operations lpfc_idiag_op_ctlAcc = { 4936 .owner = THIS_MODULE, 4937 .open = lpfc_idiag_open, 4938 .llseek = lpfc_debugfs_lseek, 4939 .read = lpfc_idiag_ctlacc_read, 4940 .write = lpfc_idiag_ctlacc_write, 4941 .release = lpfc_idiag_cmd_release, 4942 }; 4943 4944 #undef lpfc_idiag_op_mbxAcc 4945 static const struct file_operations lpfc_idiag_op_mbxAcc = { 4946 .owner = THIS_MODULE, 4947 .open = lpfc_idiag_open, 4948 .llseek = lpfc_debugfs_lseek, 4949 .read = lpfc_idiag_mbxacc_read, 4950 .write = lpfc_idiag_mbxacc_write, 4951 .release = lpfc_idiag_cmd_release, 4952 }; 4953 4954 #undef lpfc_idiag_op_extAcc 4955 static const struct file_operations lpfc_idiag_op_extAcc = { 4956 .owner = THIS_MODULE, 4957 .open = lpfc_idiag_open, 4958 .llseek = lpfc_debugfs_lseek, 4959 .read = lpfc_idiag_extacc_read, 4960 .write = lpfc_idiag_extacc_write, 4961 .release = lpfc_idiag_cmd_release, 4962 }; 4963 4964 #endif 4965 4966 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 4967 * @phba: Pointer to HBA context object. 4968 * @dmabuf: Pointer to a DMA buffer descriptor. 4969 * 4970 * Description: 4971 * This routine dump a bsg pass-through non-embedded mailbox command with 4972 * external buffer. 4973 **/ 4974 void 4975 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 4976 enum mbox_type mbox_tp, enum dma_type dma_tp, 4977 enum sta_type sta_tp, 4978 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 4979 { 4980 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4981 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 4982 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 4983 int len = 0; 4984 uint32_t do_dump = 0; 4985 uint32_t *pword; 4986 uint32_t i; 4987 4988 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 4989 return; 4990 4991 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4992 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4993 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4994 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4995 4996 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 4997 (*mbx_dump_cnt == 0) || 4998 (*mbx_word_cnt == 0)) 4999 return; 5000 5001 if (*mbx_mbox_cmd != 0x9B) 5002 return; 5003 5004 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5005 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5006 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5007 pr_err("\nRead mbox command (x%x), " 5008 "nemb:0x%x, extbuf_cnt:%d:\n", 5009 sta_tp, nemb_tp, ext_buf); 5010 } 5011 } 5012 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5013 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5014 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5015 pr_err("\nRead mbox buffer (x%x), " 5016 "nemb:0x%x, extbuf_seq:%d:\n", 5017 sta_tp, nemb_tp, ext_buf); 5018 } 5019 } 5020 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5021 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5022 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5023 pr_err("\nWrite mbox command (x%x), " 5024 "nemb:0x%x, extbuf_cnt:%d:\n", 5025 sta_tp, nemb_tp, ext_buf); 5026 } 5027 } 5028 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5029 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5030 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5031 pr_err("\nWrite mbox buffer (x%x), " 5032 "nemb:0x%x, extbuf_seq:%d:\n", 5033 sta_tp, nemb_tp, ext_buf); 5034 } 5035 } 5036 5037 /* dump buffer content */ 5038 if (do_dump) { 5039 pword = (uint32_t *)dmabuf->virt; 5040 for (i = 0; i < *mbx_word_cnt; i++) { 5041 if (!(i % 8)) { 5042 if (i != 0) 5043 pr_err("%s\n", line_buf); 5044 len = 0; 5045 len += snprintf(line_buf+len, 5046 LPFC_MBX_ACC_LBUF_SZ-len, 5047 "%03d: ", i); 5048 } 5049 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5050 "%08x ", (uint32_t)*pword); 5051 pword++; 5052 } 5053 if ((i - 1) % 8) 5054 pr_err("%s\n", line_buf); 5055 (*mbx_dump_cnt)--; 5056 } 5057 5058 /* Clean out command structure on reaching dump count */ 5059 if (*mbx_dump_cnt == 0) 5060 memset(&idiag, 0, sizeof(idiag)); 5061 return; 5062 #endif 5063 } 5064 5065 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5066 * @phba: Pointer to HBA context object. 5067 * @dmabuf: Pointer to a DMA buffer descriptor. 5068 * 5069 * Description: 5070 * This routine dump a pass-through non-embedded mailbox command from issue 5071 * mailbox command. 5072 **/ 5073 void 5074 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5075 { 5076 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5077 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5078 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5079 int len = 0; 5080 uint32_t *pword; 5081 uint8_t *pbyte; 5082 uint32_t i, j; 5083 5084 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5085 return; 5086 5087 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5088 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5089 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5090 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5091 5092 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5093 (*mbx_dump_cnt == 0) || 5094 (*mbx_word_cnt == 0)) 5095 return; 5096 5097 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5098 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5099 return; 5100 5101 /* dump buffer content */ 5102 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5103 pr_err("Mailbox command:0x%x dump by word:\n", 5104 pmbox->mbxCommand); 5105 pword = (uint32_t *)pmbox; 5106 for (i = 0; i < *mbx_word_cnt; i++) { 5107 if (!(i % 8)) { 5108 if (i != 0) 5109 pr_err("%s\n", line_buf); 5110 len = 0; 5111 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5112 len += snprintf(line_buf+len, 5113 LPFC_MBX_ACC_LBUF_SZ-len, 5114 "%03d: ", i); 5115 } 5116 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5117 "%08x ", 5118 ((uint32_t)*pword) & 0xffffffff); 5119 pword++; 5120 } 5121 if ((i - 1) % 8) 5122 pr_err("%s\n", line_buf); 5123 pr_err("\n"); 5124 } 5125 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5126 pr_err("Mailbox command:0x%x dump by byte:\n", 5127 pmbox->mbxCommand); 5128 pbyte = (uint8_t *)pmbox; 5129 for (i = 0; i < *mbx_word_cnt; i++) { 5130 if (!(i % 8)) { 5131 if (i != 0) 5132 pr_err("%s\n", line_buf); 5133 len = 0; 5134 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5135 len += snprintf(line_buf+len, 5136 LPFC_MBX_ACC_LBUF_SZ-len, 5137 "%03d: ", i); 5138 } 5139 for (j = 0; j < 4; j++) { 5140 len += snprintf(line_buf+len, 5141 LPFC_MBX_ACC_LBUF_SZ-len, 5142 "%02x", 5143 ((uint8_t)*pbyte) & 0xff); 5144 pbyte++; 5145 } 5146 len += snprintf(line_buf+len, 5147 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5148 } 5149 if ((i - 1) % 8) 5150 pr_err("%s\n", line_buf); 5151 pr_err("\n"); 5152 } 5153 (*mbx_dump_cnt)--; 5154 5155 /* Clean out command structure on reaching dump count */ 5156 if (*mbx_dump_cnt == 0) 5157 memset(&idiag, 0, sizeof(idiag)); 5158 return; 5159 #endif 5160 } 5161 5162 /** 5163 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5164 * @vport: The vport pointer to initialize. 5165 * 5166 * Description: 5167 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5168 * If not already created, this routine will create the lpfc directory, and 5169 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5170 * also create each file used to access lpfc specific debugfs information. 5171 **/ 5172 inline void 5173 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5174 { 5175 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5176 struct lpfc_hba *phba = vport->phba; 5177 char name[64]; 5178 uint32_t num, i; 5179 bool pport_setup = false; 5180 5181 if (!lpfc_debugfs_enable) 5182 return; 5183 5184 /* Setup lpfc root directory */ 5185 if (!lpfc_debugfs_root) { 5186 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5187 atomic_set(&lpfc_debugfs_hba_count, 0); 5188 if (!lpfc_debugfs_root) { 5189 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5190 "0408 Cannot create debugfs root\n"); 5191 goto debug_failed; 5192 } 5193 } 5194 if (!lpfc_debugfs_start_time) 5195 lpfc_debugfs_start_time = jiffies; 5196 5197 /* Setup funcX directory for specific HBA PCI function */ 5198 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5199 if (!phba->hba_debugfs_root) { 5200 pport_setup = true; 5201 phba->hba_debugfs_root = 5202 debugfs_create_dir(name, lpfc_debugfs_root); 5203 if (!phba->hba_debugfs_root) { 5204 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5205 "0412 Cannot create debugfs hba\n"); 5206 goto debug_failed; 5207 } 5208 atomic_inc(&lpfc_debugfs_hba_count); 5209 atomic_set(&phba->debugfs_vport_count, 0); 5210 5211 /* Setup hbqinfo */ 5212 snprintf(name, sizeof(name), "hbqinfo"); 5213 phba->debug_hbqinfo = 5214 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5215 phba->hba_debugfs_root, 5216 phba, &lpfc_debugfs_op_hbqinfo); 5217 if (!phba->debug_hbqinfo) { 5218 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5219 "0411 Cannot create debugfs hbqinfo\n"); 5220 goto debug_failed; 5221 } 5222 5223 /* Setup dumpHBASlim */ 5224 if (phba->sli_rev < LPFC_SLI_REV4) { 5225 snprintf(name, sizeof(name), "dumpHBASlim"); 5226 phba->debug_dumpHBASlim = 5227 debugfs_create_file(name, 5228 S_IFREG|S_IRUGO|S_IWUSR, 5229 phba->hba_debugfs_root, 5230 phba, &lpfc_debugfs_op_dumpHBASlim); 5231 if (!phba->debug_dumpHBASlim) { 5232 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5233 "0413 Cannot create debugfs " 5234 "dumpHBASlim\n"); 5235 goto debug_failed; 5236 } 5237 } else 5238 phba->debug_dumpHBASlim = NULL; 5239 5240 /* Setup dumpHostSlim */ 5241 if (phba->sli_rev < LPFC_SLI_REV4) { 5242 snprintf(name, sizeof(name), "dumpHostSlim"); 5243 phba->debug_dumpHostSlim = 5244 debugfs_create_file(name, 5245 S_IFREG|S_IRUGO|S_IWUSR, 5246 phba->hba_debugfs_root, 5247 phba, &lpfc_debugfs_op_dumpHostSlim); 5248 if (!phba->debug_dumpHostSlim) { 5249 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5250 "0414 Cannot create debugfs " 5251 "dumpHostSlim\n"); 5252 goto debug_failed; 5253 } 5254 } else 5255 phba->debug_dumpHostSlim = NULL; 5256 5257 /* Setup dumpData */ 5258 snprintf(name, sizeof(name), "dumpData"); 5259 phba->debug_dumpData = 5260 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5261 phba->hba_debugfs_root, 5262 phba, &lpfc_debugfs_op_dumpData); 5263 if (!phba->debug_dumpData) { 5264 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5265 "0800 Cannot create debugfs dumpData\n"); 5266 goto debug_failed; 5267 } 5268 5269 /* Setup dumpDif */ 5270 snprintf(name, sizeof(name), "dumpDif"); 5271 phba->debug_dumpDif = 5272 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5273 phba->hba_debugfs_root, 5274 phba, &lpfc_debugfs_op_dumpDif); 5275 if (!phba->debug_dumpDif) { 5276 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5277 "0801 Cannot create debugfs dumpDif\n"); 5278 goto debug_failed; 5279 } 5280 5281 /* Setup DIF Error Injections */ 5282 snprintf(name, sizeof(name), "InjErrLBA"); 5283 phba->debug_InjErrLBA = 5284 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5285 phba->hba_debugfs_root, 5286 phba, &lpfc_debugfs_op_dif_err); 5287 if (!phba->debug_InjErrLBA) { 5288 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5289 "0807 Cannot create debugfs InjErrLBA\n"); 5290 goto debug_failed; 5291 } 5292 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5293 5294 snprintf(name, sizeof(name), "InjErrNPortID"); 5295 phba->debug_InjErrNPortID = 5296 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5297 phba->hba_debugfs_root, 5298 phba, &lpfc_debugfs_op_dif_err); 5299 if (!phba->debug_InjErrNPortID) { 5300 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5301 "0809 Cannot create debugfs InjErrNPortID\n"); 5302 goto debug_failed; 5303 } 5304 5305 snprintf(name, sizeof(name), "InjErrWWPN"); 5306 phba->debug_InjErrWWPN = 5307 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5308 phba->hba_debugfs_root, 5309 phba, &lpfc_debugfs_op_dif_err); 5310 if (!phba->debug_InjErrWWPN) { 5311 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5312 "0810 Cannot create debugfs InjErrWWPN\n"); 5313 goto debug_failed; 5314 } 5315 5316 snprintf(name, sizeof(name), "writeGuardInjErr"); 5317 phba->debug_writeGuard = 5318 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5319 phba->hba_debugfs_root, 5320 phba, &lpfc_debugfs_op_dif_err); 5321 if (!phba->debug_writeGuard) { 5322 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5323 "0802 Cannot create debugfs writeGuard\n"); 5324 goto debug_failed; 5325 } 5326 5327 snprintf(name, sizeof(name), "writeAppInjErr"); 5328 phba->debug_writeApp = 5329 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5330 phba->hba_debugfs_root, 5331 phba, &lpfc_debugfs_op_dif_err); 5332 if (!phba->debug_writeApp) { 5333 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5334 "0803 Cannot create debugfs writeApp\n"); 5335 goto debug_failed; 5336 } 5337 5338 snprintf(name, sizeof(name), "writeRefInjErr"); 5339 phba->debug_writeRef = 5340 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5341 phba->hba_debugfs_root, 5342 phba, &lpfc_debugfs_op_dif_err); 5343 if (!phba->debug_writeRef) { 5344 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5345 "0804 Cannot create debugfs writeRef\n"); 5346 goto debug_failed; 5347 } 5348 5349 snprintf(name, sizeof(name), "readGuardInjErr"); 5350 phba->debug_readGuard = 5351 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5352 phba->hba_debugfs_root, 5353 phba, &lpfc_debugfs_op_dif_err); 5354 if (!phba->debug_readGuard) { 5355 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5356 "0808 Cannot create debugfs readGuard\n"); 5357 goto debug_failed; 5358 } 5359 5360 snprintf(name, sizeof(name), "readAppInjErr"); 5361 phba->debug_readApp = 5362 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5363 phba->hba_debugfs_root, 5364 phba, &lpfc_debugfs_op_dif_err); 5365 if (!phba->debug_readApp) { 5366 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5367 "0805 Cannot create debugfs readApp\n"); 5368 goto debug_failed; 5369 } 5370 5371 snprintf(name, sizeof(name), "readRefInjErr"); 5372 phba->debug_readRef = 5373 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5374 phba->hba_debugfs_root, 5375 phba, &lpfc_debugfs_op_dif_err); 5376 if (!phba->debug_readRef) { 5377 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5378 "0806 Cannot create debugfs readApp\n"); 5379 goto debug_failed; 5380 } 5381 5382 /* Setup slow ring trace */ 5383 if (lpfc_debugfs_max_slow_ring_trc) { 5384 num = lpfc_debugfs_max_slow_ring_trc - 1; 5385 if (num & lpfc_debugfs_max_slow_ring_trc) { 5386 /* Change to be a power of 2 */ 5387 num = lpfc_debugfs_max_slow_ring_trc; 5388 i = 0; 5389 while (num > 1) { 5390 num = num >> 1; 5391 i++; 5392 } 5393 lpfc_debugfs_max_slow_ring_trc = (1 << i); 5394 pr_err("lpfc_debugfs_max_disc_trc changed to " 5395 "%d\n", lpfc_debugfs_max_disc_trc); 5396 } 5397 } 5398 5399 snprintf(name, sizeof(name), "slow_ring_trace"); 5400 phba->debug_slow_ring_trc = 5401 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5402 phba->hba_debugfs_root, 5403 phba, &lpfc_debugfs_op_slow_ring_trc); 5404 if (!phba->debug_slow_ring_trc) { 5405 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5406 "0415 Cannot create debugfs " 5407 "slow_ring_trace\n"); 5408 goto debug_failed; 5409 } 5410 if (!phba->slow_ring_trc) { 5411 phba->slow_ring_trc = kmalloc( 5412 (sizeof(struct lpfc_debugfs_trc) * 5413 lpfc_debugfs_max_slow_ring_trc), 5414 GFP_KERNEL); 5415 if (!phba->slow_ring_trc) { 5416 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5417 "0416 Cannot create debugfs " 5418 "slow_ring buffer\n"); 5419 goto debug_failed; 5420 } 5421 atomic_set(&phba->slow_ring_trc_cnt, 0); 5422 memset(phba->slow_ring_trc, 0, 5423 (sizeof(struct lpfc_debugfs_trc) * 5424 lpfc_debugfs_max_slow_ring_trc)); 5425 } 5426 5427 snprintf(name, sizeof(name), "nvmeio_trc"); 5428 phba->debug_nvmeio_trc = 5429 debugfs_create_file(name, 0644, 5430 phba->hba_debugfs_root, 5431 phba, &lpfc_debugfs_op_nvmeio_trc); 5432 if (!phba->debug_nvmeio_trc) { 5433 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5434 "0574 No create debugfs nvmeio_trc\n"); 5435 goto debug_failed; 5436 } 5437 5438 atomic_set(&phba->nvmeio_trc_cnt, 0); 5439 if (lpfc_debugfs_max_nvmeio_trc) { 5440 num = lpfc_debugfs_max_nvmeio_trc - 1; 5441 if (num & lpfc_debugfs_max_disc_trc) { 5442 /* Change to be a power of 2 */ 5443 num = lpfc_debugfs_max_nvmeio_trc; 5444 i = 0; 5445 while (num > 1) { 5446 num = num >> 1; 5447 i++; 5448 } 5449 lpfc_debugfs_max_nvmeio_trc = (1 << i); 5450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5451 "0575 lpfc_debugfs_max_nvmeio_trc " 5452 "changed to %d\n", 5453 lpfc_debugfs_max_nvmeio_trc); 5454 } 5455 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 5456 5457 /* Allocate trace buffer and initialize */ 5458 phba->nvmeio_trc = kzalloc( 5459 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 5460 phba->nvmeio_trc_size), GFP_KERNEL); 5461 5462 if (!phba->nvmeio_trc) { 5463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5464 "0576 Cannot create debugfs " 5465 "nvmeio_trc buffer\n"); 5466 goto nvmeio_off; 5467 } 5468 phba->nvmeio_trc_on = 1; 5469 phba->nvmeio_trc_output_idx = 0; 5470 phba->nvmeio_trc = NULL; 5471 } else { 5472 nvmeio_off: 5473 phba->nvmeio_trc_size = 0; 5474 phba->nvmeio_trc_on = 0; 5475 phba->nvmeio_trc_output_idx = 0; 5476 phba->nvmeio_trc = NULL; 5477 } 5478 } 5479 5480 snprintf(name, sizeof(name), "vport%d", vport->vpi); 5481 if (!vport->vport_debugfs_root) { 5482 vport->vport_debugfs_root = 5483 debugfs_create_dir(name, phba->hba_debugfs_root); 5484 if (!vport->vport_debugfs_root) { 5485 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5486 "0417 Can't create debugfs\n"); 5487 goto debug_failed; 5488 } 5489 atomic_inc(&phba->debugfs_vport_count); 5490 } 5491 5492 if (lpfc_debugfs_max_disc_trc) { 5493 num = lpfc_debugfs_max_disc_trc - 1; 5494 if (num & lpfc_debugfs_max_disc_trc) { 5495 /* Change to be a power of 2 */ 5496 num = lpfc_debugfs_max_disc_trc; 5497 i = 0; 5498 while (num > 1) { 5499 num = num >> 1; 5500 i++; 5501 } 5502 lpfc_debugfs_max_disc_trc = (1 << i); 5503 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 5504 lpfc_debugfs_max_disc_trc); 5505 } 5506 } 5507 5508 vport->disc_trc = kzalloc( 5509 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 5510 GFP_KERNEL); 5511 5512 if (!vport->disc_trc) { 5513 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5514 "0418 Cannot create debugfs disc trace " 5515 "buffer\n"); 5516 goto debug_failed; 5517 } 5518 atomic_set(&vport->disc_trc_cnt, 0); 5519 5520 snprintf(name, sizeof(name), "discovery_trace"); 5521 vport->debug_disc_trc = 5522 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5523 vport->vport_debugfs_root, 5524 vport, &lpfc_debugfs_op_disc_trc); 5525 if (!vport->debug_disc_trc) { 5526 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5527 "0419 Cannot create debugfs " 5528 "discovery_trace\n"); 5529 goto debug_failed; 5530 } 5531 snprintf(name, sizeof(name), "nodelist"); 5532 vport->debug_nodelist = 5533 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5534 vport->vport_debugfs_root, 5535 vport, &lpfc_debugfs_op_nodelist); 5536 if (!vport->debug_nodelist) { 5537 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5538 "2985 Can't create debugfs nodelist\n"); 5539 goto debug_failed; 5540 } 5541 5542 snprintf(name, sizeof(name), "nvmestat"); 5543 vport->debug_nvmestat = 5544 debugfs_create_file(name, 0644, 5545 vport->vport_debugfs_root, 5546 vport, &lpfc_debugfs_op_nvmestat); 5547 if (!vport->debug_nvmestat) { 5548 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5549 "0811 Cannot create debugfs nvmestat\n"); 5550 goto debug_failed; 5551 } 5552 5553 snprintf(name, sizeof(name), "nvmektime"); 5554 vport->debug_nvmektime = 5555 debugfs_create_file(name, 0644, 5556 vport->vport_debugfs_root, 5557 vport, &lpfc_debugfs_op_nvmektime); 5558 if (!vport->debug_nvmektime) { 5559 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5560 "0815 Cannot create debugfs nvmektime\n"); 5561 goto debug_failed; 5562 } 5563 5564 snprintf(name, sizeof(name), "cpucheck"); 5565 vport->debug_cpucheck = 5566 debugfs_create_file(name, 0644, 5567 vport->vport_debugfs_root, 5568 vport, &lpfc_debugfs_op_cpucheck); 5569 if (!vport->debug_cpucheck) { 5570 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5571 "0819 Cannot create debugfs cpucheck\n"); 5572 goto debug_failed; 5573 } 5574 5575 /* 5576 * The following section is for additional directories/files for the 5577 * physical port. 5578 */ 5579 5580 if (!pport_setup) 5581 goto debug_failed; 5582 5583 /* 5584 * iDiag debugfs root entry points for SLI4 device only 5585 */ 5586 if (phba->sli_rev < LPFC_SLI_REV4) 5587 goto debug_failed; 5588 5589 snprintf(name, sizeof(name), "iDiag"); 5590 if (!phba->idiag_root) { 5591 phba->idiag_root = 5592 debugfs_create_dir(name, phba->hba_debugfs_root); 5593 if (!phba->idiag_root) { 5594 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5595 "2922 Can't create idiag debugfs\n"); 5596 goto debug_failed; 5597 } 5598 /* Initialize iDiag data structure */ 5599 memset(&idiag, 0, sizeof(idiag)); 5600 } 5601 5602 /* iDiag read PCI config space */ 5603 snprintf(name, sizeof(name), "pciCfg"); 5604 if (!phba->idiag_pci_cfg) { 5605 phba->idiag_pci_cfg = 5606 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5607 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 5608 if (!phba->idiag_pci_cfg) { 5609 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5610 "2923 Can't create idiag debugfs\n"); 5611 goto debug_failed; 5612 } 5613 idiag.offset.last_rd = 0; 5614 } 5615 5616 /* iDiag PCI BAR access */ 5617 snprintf(name, sizeof(name), "barAcc"); 5618 if (!phba->idiag_bar_acc) { 5619 phba->idiag_bar_acc = 5620 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5621 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 5622 if (!phba->idiag_bar_acc) { 5623 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5624 "3056 Can't create idiag debugfs\n"); 5625 goto debug_failed; 5626 } 5627 idiag.offset.last_rd = 0; 5628 } 5629 5630 /* iDiag get PCI function queue information */ 5631 snprintf(name, sizeof(name), "queInfo"); 5632 if (!phba->idiag_que_info) { 5633 phba->idiag_que_info = 5634 debugfs_create_file(name, S_IFREG|S_IRUGO, 5635 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 5636 if (!phba->idiag_que_info) { 5637 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5638 "2924 Can't create idiag debugfs\n"); 5639 goto debug_failed; 5640 } 5641 } 5642 5643 /* iDiag access PCI function queue */ 5644 snprintf(name, sizeof(name), "queAcc"); 5645 if (!phba->idiag_que_acc) { 5646 phba->idiag_que_acc = 5647 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5648 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 5649 if (!phba->idiag_que_acc) { 5650 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5651 "2926 Can't create idiag debugfs\n"); 5652 goto debug_failed; 5653 } 5654 } 5655 5656 /* iDiag access PCI function doorbell registers */ 5657 snprintf(name, sizeof(name), "drbAcc"); 5658 if (!phba->idiag_drb_acc) { 5659 phba->idiag_drb_acc = 5660 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5661 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 5662 if (!phba->idiag_drb_acc) { 5663 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5664 "2927 Can't create idiag debugfs\n"); 5665 goto debug_failed; 5666 } 5667 } 5668 5669 /* iDiag access PCI function control registers */ 5670 snprintf(name, sizeof(name), "ctlAcc"); 5671 if (!phba->idiag_ctl_acc) { 5672 phba->idiag_ctl_acc = 5673 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5674 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 5675 if (!phba->idiag_ctl_acc) { 5676 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5677 "2981 Can't create idiag debugfs\n"); 5678 goto debug_failed; 5679 } 5680 } 5681 5682 /* iDiag access mbox commands */ 5683 snprintf(name, sizeof(name), "mbxAcc"); 5684 if (!phba->idiag_mbx_acc) { 5685 phba->idiag_mbx_acc = 5686 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5687 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 5688 if (!phba->idiag_mbx_acc) { 5689 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5690 "2980 Can't create idiag debugfs\n"); 5691 goto debug_failed; 5692 } 5693 } 5694 5695 /* iDiag extents access commands */ 5696 if (phba->sli4_hba.extents_in_use) { 5697 snprintf(name, sizeof(name), "extAcc"); 5698 if (!phba->idiag_ext_acc) { 5699 phba->idiag_ext_acc = 5700 debugfs_create_file(name, 5701 S_IFREG|S_IRUGO|S_IWUSR, 5702 phba->idiag_root, phba, 5703 &lpfc_idiag_op_extAcc); 5704 if (!phba->idiag_ext_acc) { 5705 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5706 "2986 Cant create " 5707 "idiag debugfs\n"); 5708 goto debug_failed; 5709 } 5710 } 5711 } 5712 5713 debug_failed: 5714 return; 5715 #endif 5716 } 5717 5718 /** 5719 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 5720 * @vport: The vport pointer to remove from debugfs. 5721 * 5722 * Description: 5723 * When Debugfs is configured this routine removes debugfs file system elements 5724 * that are specific to this vport. It also checks to see if there are any 5725 * users left for the debugfs directories associated with the HBA and driver. If 5726 * this is the last user of the HBA directory or driver directory then it will 5727 * remove those from the debugfs infrastructure as well. 5728 **/ 5729 inline void 5730 lpfc_debugfs_terminate(struct lpfc_vport *vport) 5731 { 5732 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5733 struct lpfc_hba *phba = vport->phba; 5734 5735 kfree(vport->disc_trc); 5736 vport->disc_trc = NULL; 5737 5738 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 5739 vport->debug_disc_trc = NULL; 5740 5741 debugfs_remove(vport->debug_nodelist); /* nodelist */ 5742 vport->debug_nodelist = NULL; 5743 5744 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 5745 vport->debug_nvmestat = NULL; 5746 5747 debugfs_remove(vport->debug_nvmektime); /* nvmektime */ 5748 vport->debug_nvmektime = NULL; 5749 5750 debugfs_remove(vport->debug_cpucheck); /* cpucheck */ 5751 vport->debug_cpucheck = NULL; 5752 5753 if (vport->vport_debugfs_root) { 5754 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 5755 vport->vport_debugfs_root = NULL; 5756 atomic_dec(&phba->debugfs_vport_count); 5757 } 5758 5759 if (atomic_read(&phba->debugfs_vport_count) == 0) { 5760 5761 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 5762 phba->debug_hbqinfo = NULL; 5763 5764 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 5765 phba->debug_dumpHBASlim = NULL; 5766 5767 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 5768 phba->debug_dumpHostSlim = NULL; 5769 5770 debugfs_remove(phba->debug_dumpData); /* dumpData */ 5771 phba->debug_dumpData = NULL; 5772 5773 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 5774 phba->debug_dumpDif = NULL; 5775 5776 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 5777 phba->debug_InjErrLBA = NULL; 5778 5779 debugfs_remove(phba->debug_InjErrNPortID); 5780 phba->debug_InjErrNPortID = NULL; 5781 5782 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 5783 phba->debug_InjErrWWPN = NULL; 5784 5785 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 5786 phba->debug_writeGuard = NULL; 5787 5788 debugfs_remove(phba->debug_writeApp); /* writeApp */ 5789 phba->debug_writeApp = NULL; 5790 5791 debugfs_remove(phba->debug_writeRef); /* writeRef */ 5792 phba->debug_writeRef = NULL; 5793 5794 debugfs_remove(phba->debug_readGuard); /* readGuard */ 5795 phba->debug_readGuard = NULL; 5796 5797 debugfs_remove(phba->debug_readApp); /* readApp */ 5798 phba->debug_readApp = NULL; 5799 5800 debugfs_remove(phba->debug_readRef); /* readRef */ 5801 phba->debug_readRef = NULL; 5802 5803 kfree(phba->slow_ring_trc); 5804 phba->slow_ring_trc = NULL; 5805 5806 /* slow_ring_trace */ 5807 debugfs_remove(phba->debug_slow_ring_trc); 5808 phba->debug_slow_ring_trc = NULL; 5809 5810 debugfs_remove(phba->debug_nvmeio_trc); 5811 phba->debug_nvmeio_trc = NULL; 5812 5813 kfree(phba->nvmeio_trc); 5814 phba->nvmeio_trc = NULL; 5815 5816 /* 5817 * iDiag release 5818 */ 5819 if (phba->sli_rev == LPFC_SLI_REV4) { 5820 /* iDiag extAcc */ 5821 debugfs_remove(phba->idiag_ext_acc); 5822 phba->idiag_ext_acc = NULL; 5823 5824 /* iDiag mbxAcc */ 5825 debugfs_remove(phba->idiag_mbx_acc); 5826 phba->idiag_mbx_acc = NULL; 5827 5828 /* iDiag ctlAcc */ 5829 debugfs_remove(phba->idiag_ctl_acc); 5830 phba->idiag_ctl_acc = NULL; 5831 5832 /* iDiag drbAcc */ 5833 debugfs_remove(phba->idiag_drb_acc); 5834 phba->idiag_drb_acc = NULL; 5835 5836 /* iDiag queAcc */ 5837 debugfs_remove(phba->idiag_que_acc); 5838 phba->idiag_que_acc = NULL; 5839 5840 /* iDiag queInfo */ 5841 debugfs_remove(phba->idiag_que_info); 5842 phba->idiag_que_info = NULL; 5843 5844 /* iDiag barAcc */ 5845 debugfs_remove(phba->idiag_bar_acc); 5846 phba->idiag_bar_acc = NULL; 5847 5848 /* iDiag pciCfg */ 5849 debugfs_remove(phba->idiag_pci_cfg); 5850 phba->idiag_pci_cfg = NULL; 5851 5852 /* Finally remove the iDiag debugfs root */ 5853 debugfs_remove(phba->idiag_root); 5854 phba->idiag_root = NULL; 5855 } 5856 5857 if (phba->hba_debugfs_root) { 5858 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 5859 phba->hba_debugfs_root = NULL; 5860 atomic_dec(&lpfc_debugfs_hba_count); 5861 } 5862 5863 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 5864 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 5865 lpfc_debugfs_root = NULL; 5866 } 5867 } 5868 #endif 5869 return; 5870 } 5871 5872 /* 5873 * Driver debug utility routines outside of debugfs. The debug utility 5874 * routines implemented here is intended to be used in the instrumented 5875 * debug driver for debugging host or port issues. 5876 */ 5877 5878 /** 5879 * lpfc_debug_dump_all_queues - dump all the queues with a hba 5880 * @phba: Pointer to HBA context object. 5881 * 5882 * This function dumps entries of all the queues asociated with the @phba. 5883 **/ 5884 void 5885 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 5886 { 5887 int idx; 5888 5889 /* 5890 * Dump Work Queues (WQs) 5891 */ 5892 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 5893 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 5894 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 5895 5896 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5897 lpfc_debug_dump_wq(phba, DUMP_FCP, idx); 5898 5899 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5900 lpfc_debug_dump_wq(phba, DUMP_NVME, idx); 5901 5902 lpfc_debug_dump_hdr_rq(phba); 5903 lpfc_debug_dump_dat_rq(phba); 5904 /* 5905 * Dump Complete Queues (CQs) 5906 */ 5907 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 5908 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 5909 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 5910 5911 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5912 lpfc_debug_dump_cq(phba, DUMP_FCP, idx); 5913 5914 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5915 lpfc_debug_dump_cq(phba, DUMP_NVME, idx); 5916 5917 /* 5918 * Dump Event Queues (EQs) 5919 */ 5920 for (idx = 0; idx < phba->io_channel_irqs; idx++) 5921 lpfc_debug_dump_hba_eq(phba, idx); 5922 } 5923