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 struct nvme_fc_local_port *localport; 754 struct lpfc_nvme_lport *lport; 755 uint64_t tot, data1, data2, data3; 756 int len = 0; 757 int cnt; 758 759 if (phba->nvmet_support) { 760 if (!phba->targetport) 761 return len; 762 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 763 len += snprintf(buf + len, size - len, 764 "\nNVME Targetport Statistics\n"); 765 766 len += snprintf(buf + len, size - len, 767 "LS: Rcv %08x Drop %08x Abort %08x\n", 768 atomic_read(&tgtp->rcv_ls_req_in), 769 atomic_read(&tgtp->rcv_ls_req_drop), 770 atomic_read(&tgtp->xmt_ls_abort)); 771 if (atomic_read(&tgtp->rcv_ls_req_in) != 772 atomic_read(&tgtp->rcv_ls_req_out)) { 773 len += snprintf(buf + len, size - len, 774 "Rcv LS: in %08x != out %08x\n", 775 atomic_read(&tgtp->rcv_ls_req_in), 776 atomic_read(&tgtp->rcv_ls_req_out)); 777 } 778 779 len += snprintf(buf + len, size - len, 780 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 781 atomic_read(&tgtp->xmt_ls_rsp), 782 atomic_read(&tgtp->xmt_ls_drop), 783 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 784 785 len += snprintf(buf + len, size - len, 786 "LS: RSP Abort %08x xb %08x Err %08x\n", 787 atomic_read(&tgtp->xmt_ls_rsp_aborted), 788 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 789 atomic_read(&tgtp->xmt_ls_rsp_error)); 790 791 len += snprintf(buf + len, size - len, 792 "FCP: Rcv %08x Defer %08x Release %08x " 793 "Drop %08x\n", 794 atomic_read(&tgtp->rcv_fcp_cmd_in), 795 atomic_read(&tgtp->rcv_fcp_cmd_defer), 796 atomic_read(&tgtp->xmt_fcp_release), 797 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 798 799 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 800 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 801 len += snprintf(buf + len, size - len, 802 "Rcv FCP: in %08x != out %08x\n", 803 atomic_read(&tgtp->rcv_fcp_cmd_in), 804 atomic_read(&tgtp->rcv_fcp_cmd_out)); 805 } 806 807 len += snprintf(buf + len, size - len, 808 "FCP Rsp: read %08x readrsp %08x " 809 "write %08x rsp %08x\n", 810 atomic_read(&tgtp->xmt_fcp_read), 811 atomic_read(&tgtp->xmt_fcp_read_rsp), 812 atomic_read(&tgtp->xmt_fcp_write), 813 atomic_read(&tgtp->xmt_fcp_rsp)); 814 815 len += snprintf(buf + len, size - len, 816 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 817 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 818 atomic_read(&tgtp->xmt_fcp_rsp_error), 819 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 820 821 len += snprintf(buf + len, size - len, 822 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 823 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 824 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 825 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 826 827 len += snprintf(buf + len, size - len, 828 "ABORT: Xmt %08x Cmpl %08x\n", 829 atomic_read(&tgtp->xmt_fcp_abort), 830 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 831 832 len += snprintf(buf + len, size - len, 833 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 834 atomic_read(&tgtp->xmt_abort_sol), 835 atomic_read(&tgtp->xmt_abort_unsol), 836 atomic_read(&tgtp->xmt_abort_rsp), 837 atomic_read(&tgtp->xmt_abort_rsp_error)); 838 839 len += snprintf(buf + len, size - len, "\n"); 840 841 cnt = 0; 842 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 843 list_for_each_entry_safe(ctxp, next_ctxp, 844 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 845 list) { 846 cnt++; 847 } 848 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 849 if (cnt) { 850 len += snprintf(buf + len, size - len, 851 "ABORT: %d ctx entries\n", cnt); 852 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 853 list_for_each_entry_safe(ctxp, next_ctxp, 854 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 855 list) { 856 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 857 break; 858 len += snprintf(buf + len, size - len, 859 "Entry: oxid %x state %x " 860 "flag %x\n", 861 ctxp->oxid, ctxp->state, 862 ctxp->flag); 863 } 864 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 865 } 866 867 /* Calculate outstanding IOs */ 868 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 869 tot += atomic_read(&tgtp->xmt_fcp_release); 870 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 871 872 len += snprintf(buf + len, size - len, 873 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 874 "CTX Outstanding %08llx\n", 875 phba->sli4_hba.nvmet_xri_cnt, 876 phba->sli4_hba.nvmet_io_wait_cnt, 877 phba->sli4_hba.nvmet_io_wait_total, 878 tot); 879 } else { 880 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 881 return len; 882 883 len += snprintf(buf + len, size - len, 884 "\nNVME Lport Statistics\n"); 885 886 len += snprintf(buf + len, size - len, 887 "LS: Xmt %016x Cmpl %016x\n", 888 atomic_read(&phba->fc4NvmeLsRequests), 889 atomic_read(&phba->fc4NvmeLsCmpls)); 890 891 tot = atomic_read(&phba->fc4NvmeIoCmpls); 892 data1 = atomic_read(&phba->fc4NvmeInputRequests); 893 data2 = atomic_read(&phba->fc4NvmeOutputRequests); 894 data3 = atomic_read(&phba->fc4NvmeControlRequests); 895 896 len += snprintf(buf + len, size - len, 897 "FCP: Rd %016llx Wr %016llx IO %016llx\n", 898 data1, data2, data3); 899 900 len += snprintf(buf + len, size - len, 901 " Cmpl %016llx Outstanding %016llx\n", 902 tot, (data1 + data2 + data3) - tot); 903 904 localport = vport->localport; 905 if (!localport) 906 return len; 907 lport = (struct lpfc_nvme_lport *)localport->private; 908 if (!lport) 909 return len; 910 911 len += snprintf(buf + len, size - len, 912 "LS Xmt Err: Abrt %08x Err %08x " 913 "Cmpl Err: xb %08x Err %08x\n", 914 atomic_read(&lport->xmt_ls_abort), 915 atomic_read(&lport->xmt_ls_err), 916 atomic_read(&lport->cmpl_ls_xb), 917 atomic_read(&lport->cmpl_ls_err)); 918 919 len += snprintf(buf + len, size - len, 920 "FCP Xmt Err: noxri %06x nondlp %06x " 921 "qdepth %06x wqerr %06x Abrt %06x\n", 922 atomic_read(&lport->xmt_fcp_noxri), 923 atomic_read(&lport->xmt_fcp_bad_ndlp), 924 atomic_read(&lport->xmt_fcp_qdepth), 925 atomic_read(&lport->xmt_fcp_wqerr), 926 atomic_read(&lport->xmt_fcp_abort)); 927 928 len += snprintf(buf + len, size - len, 929 "FCP Cmpl Err: xb %08x Err %08x\n", 930 atomic_read(&lport->cmpl_fcp_xb), 931 atomic_read(&lport->cmpl_fcp_err)); 932 933 } 934 935 return len; 936 } 937 938 939 /** 940 * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer 941 * @vport: The vport to gather target node info from. 942 * @buf: The buffer to dump log into. 943 * @size: The maximum amount of data to process. 944 * 945 * Description: 946 * This routine dumps the NVME statistics associated with @vport 947 * 948 * Return Value: 949 * This routine returns the amount of bytes that were dumped into @buf and will 950 * not exceed @size. 951 **/ 952 static int 953 lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size) 954 { 955 struct lpfc_hba *phba = vport->phba; 956 int len = 0; 957 958 if (phba->nvmet_support == 0) { 959 /* NVME Initiator */ 960 len += snprintf(buf + len, PAGE_SIZE - len, 961 "ktime %s: Total Samples: %lld\n", 962 (phba->ktime_on ? "Enabled" : "Disabled"), 963 phba->ktime_data_samples); 964 if (phba->ktime_data_samples == 0) 965 return len; 966 967 len += snprintf( 968 buf + len, PAGE_SIZE - len, 969 "Segment 1: Last NVME Cmd cmpl " 970 "done -to- Start of next NVME cnd (in driver)\n"); 971 len += snprintf( 972 buf + len, PAGE_SIZE - len, 973 "avg:%08lld min:%08lld max %08lld\n", 974 div_u64(phba->ktime_seg1_total, 975 phba->ktime_data_samples), 976 phba->ktime_seg1_min, 977 phba->ktime_seg1_max); 978 len += snprintf( 979 buf + len, PAGE_SIZE - len, 980 "Segment 2: Driver start of NVME cmd " 981 "-to- Firmware WQ doorbell\n"); 982 len += snprintf( 983 buf + len, PAGE_SIZE - len, 984 "avg:%08lld min:%08lld max %08lld\n", 985 div_u64(phba->ktime_seg2_total, 986 phba->ktime_data_samples), 987 phba->ktime_seg2_min, 988 phba->ktime_seg2_max); 989 len += snprintf( 990 buf + len, PAGE_SIZE - len, 991 "Segment 3: Firmware WQ doorbell -to- " 992 "MSI-X ISR cmpl\n"); 993 len += snprintf( 994 buf + len, PAGE_SIZE - len, 995 "avg:%08lld min:%08lld max %08lld\n", 996 div_u64(phba->ktime_seg3_total, 997 phba->ktime_data_samples), 998 phba->ktime_seg3_min, 999 phba->ktime_seg3_max); 1000 len += snprintf( 1001 buf + len, PAGE_SIZE - len, 1002 "Segment 4: MSI-X ISR cmpl -to- " 1003 "NVME cmpl done\n"); 1004 len += snprintf( 1005 buf + len, PAGE_SIZE - len, 1006 "avg:%08lld min:%08lld max %08lld\n", 1007 div_u64(phba->ktime_seg4_total, 1008 phba->ktime_data_samples), 1009 phba->ktime_seg4_min, 1010 phba->ktime_seg4_max); 1011 len += snprintf( 1012 buf + len, PAGE_SIZE - len, 1013 "Total IO avg time: %08lld\n", 1014 div_u64(phba->ktime_seg1_total + 1015 phba->ktime_seg2_total + 1016 phba->ktime_seg3_total + 1017 phba->ktime_seg4_total, 1018 phba->ktime_data_samples)); 1019 return len; 1020 } 1021 1022 /* NVME Target */ 1023 len += snprintf(buf + len, PAGE_SIZE-len, 1024 "ktime %s: Total Samples: %lld %lld\n", 1025 (phba->ktime_on ? "Enabled" : "Disabled"), 1026 phba->ktime_data_samples, 1027 phba->ktime_status_samples); 1028 if (phba->ktime_data_samples == 0) 1029 return len; 1030 1031 len += snprintf(buf + len, PAGE_SIZE-len, 1032 "Segment 1: MSI-X ISR Rcv cmd -to- " 1033 "cmd pass to NVME Layer\n"); 1034 len += snprintf(buf + len, PAGE_SIZE-len, 1035 "avg:%08lld min:%08lld max %08lld\n", 1036 div_u64(phba->ktime_seg1_total, 1037 phba->ktime_data_samples), 1038 phba->ktime_seg1_min, 1039 phba->ktime_seg1_max); 1040 len += snprintf(buf + len, PAGE_SIZE-len, 1041 "Segment 2: cmd pass to NVME Layer- " 1042 "-to- Driver rcv cmd OP (action)\n"); 1043 len += snprintf(buf + len, PAGE_SIZE-len, 1044 "avg:%08lld min:%08lld max %08lld\n", 1045 div_u64(phba->ktime_seg2_total, 1046 phba->ktime_data_samples), 1047 phba->ktime_seg2_min, 1048 phba->ktime_seg2_max); 1049 len += snprintf(buf + len, PAGE_SIZE-len, 1050 "Segment 3: Driver rcv cmd OP -to- " 1051 "Firmware WQ doorbell: cmd\n"); 1052 len += snprintf(buf + len, PAGE_SIZE-len, 1053 "avg:%08lld min:%08lld max %08lld\n", 1054 div_u64(phba->ktime_seg3_total, 1055 phba->ktime_data_samples), 1056 phba->ktime_seg3_min, 1057 phba->ktime_seg3_max); 1058 len += snprintf(buf + len, PAGE_SIZE-len, 1059 "Segment 4: Firmware WQ doorbell: cmd " 1060 "-to- MSI-X ISR for cmd cmpl\n"); 1061 len += snprintf(buf + len, PAGE_SIZE-len, 1062 "avg:%08lld min:%08lld max %08lld\n", 1063 div_u64(phba->ktime_seg4_total, 1064 phba->ktime_data_samples), 1065 phba->ktime_seg4_min, 1066 phba->ktime_seg4_max); 1067 len += snprintf(buf + len, PAGE_SIZE-len, 1068 "Segment 5: MSI-X ISR for cmd cmpl " 1069 "-to- NVME layer passed cmd done\n"); 1070 len += snprintf(buf + len, PAGE_SIZE-len, 1071 "avg:%08lld min:%08lld max %08lld\n", 1072 div_u64(phba->ktime_seg5_total, 1073 phba->ktime_data_samples), 1074 phba->ktime_seg5_min, 1075 phba->ktime_seg5_max); 1076 1077 if (phba->ktime_status_samples == 0) { 1078 len += snprintf(buf + len, PAGE_SIZE-len, 1079 "Total: cmd received by MSI-X ISR " 1080 "-to- cmd completed on wire\n"); 1081 len += snprintf(buf + len, PAGE_SIZE-len, 1082 "avg:%08lld min:%08lld " 1083 "max %08lld\n", 1084 div_u64(phba->ktime_seg10_total, 1085 phba->ktime_data_samples), 1086 phba->ktime_seg10_min, 1087 phba->ktime_seg10_max); 1088 return len; 1089 } 1090 1091 len += snprintf(buf + len, PAGE_SIZE-len, 1092 "Segment 6: NVME layer passed cmd done " 1093 "-to- Driver rcv rsp status OP\n"); 1094 len += snprintf(buf + len, PAGE_SIZE-len, 1095 "avg:%08lld min:%08lld max %08lld\n", 1096 div_u64(phba->ktime_seg6_total, 1097 phba->ktime_status_samples), 1098 phba->ktime_seg6_min, 1099 phba->ktime_seg6_max); 1100 len += snprintf(buf + len, PAGE_SIZE-len, 1101 "Segment 7: Driver rcv rsp status OP " 1102 "-to- Firmware WQ doorbell: status\n"); 1103 len += snprintf(buf + len, PAGE_SIZE-len, 1104 "avg:%08lld min:%08lld max %08lld\n", 1105 div_u64(phba->ktime_seg7_total, 1106 phba->ktime_status_samples), 1107 phba->ktime_seg7_min, 1108 phba->ktime_seg7_max); 1109 len += snprintf(buf + len, PAGE_SIZE-len, 1110 "Segment 8: Firmware WQ doorbell: status" 1111 " -to- MSI-X ISR for status cmpl\n"); 1112 len += snprintf(buf + len, PAGE_SIZE-len, 1113 "avg:%08lld min:%08lld max %08lld\n", 1114 div_u64(phba->ktime_seg8_total, 1115 phba->ktime_status_samples), 1116 phba->ktime_seg8_min, 1117 phba->ktime_seg8_max); 1118 len += snprintf(buf + len, PAGE_SIZE-len, 1119 "Segment 9: MSI-X ISR for status cmpl " 1120 "-to- NVME layer passed status done\n"); 1121 len += snprintf(buf + len, PAGE_SIZE-len, 1122 "avg:%08lld min:%08lld max %08lld\n", 1123 div_u64(phba->ktime_seg9_total, 1124 phba->ktime_status_samples), 1125 phba->ktime_seg9_min, 1126 phba->ktime_seg9_max); 1127 len += snprintf(buf + len, PAGE_SIZE-len, 1128 "Total: cmd received by MSI-X ISR -to- " 1129 "cmd completed on wire\n"); 1130 len += snprintf(buf + len, PAGE_SIZE-len, 1131 "avg:%08lld min:%08lld max %08lld\n", 1132 div_u64(phba->ktime_seg10_total, 1133 phba->ktime_status_samples), 1134 phba->ktime_seg10_min, 1135 phba->ktime_seg10_max); 1136 return len; 1137 } 1138 1139 /** 1140 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1141 * @phba: The phba to gather target node info from. 1142 * @buf: The buffer to dump log into. 1143 * @size: The maximum amount of data to process. 1144 * 1145 * Description: 1146 * This routine dumps the NVME IO trace associated with @phba 1147 * 1148 * Return Value: 1149 * This routine returns the amount of bytes that were dumped into @buf and will 1150 * not exceed @size. 1151 **/ 1152 static int 1153 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1154 { 1155 struct lpfc_debugfs_nvmeio_trc *dtp; 1156 int i, state, index, skip; 1157 int len = 0; 1158 1159 state = phba->nvmeio_trc_on; 1160 1161 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1162 (phba->nvmeio_trc_size - 1); 1163 skip = phba->nvmeio_trc_output_idx; 1164 1165 len += snprintf(buf + len, size - len, 1166 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1167 (phba->nvmet_support ? "NVME" : "NVMET"), 1168 (state ? "Enabled" : "Disabled"), 1169 index, skip, phba->nvmeio_trc_size); 1170 1171 if (!phba->nvmeio_trc || state) 1172 return len; 1173 1174 /* trace MUST bhe off to continue */ 1175 1176 for (i = index; i < phba->nvmeio_trc_size; i++) { 1177 if (skip) { 1178 skip--; 1179 continue; 1180 } 1181 dtp = phba->nvmeio_trc + i; 1182 phba->nvmeio_trc_output_idx++; 1183 1184 if (!dtp->fmt) 1185 continue; 1186 1187 len += snprintf(buf + len, size - len, dtp->fmt, 1188 dtp->data1, dtp->data2, dtp->data3); 1189 1190 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1191 phba->nvmeio_trc_output_idx = 0; 1192 len += snprintf(buf + len, size - len, 1193 "Trace Complete\n"); 1194 goto out; 1195 } 1196 1197 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1198 len += snprintf(buf + len, size - len, 1199 "Trace Continue (%d of %d)\n", 1200 phba->nvmeio_trc_output_idx, 1201 phba->nvmeio_trc_size); 1202 goto out; 1203 } 1204 } 1205 for (i = 0; i < index; i++) { 1206 if (skip) { 1207 skip--; 1208 continue; 1209 } 1210 dtp = phba->nvmeio_trc + i; 1211 phba->nvmeio_trc_output_idx++; 1212 1213 if (!dtp->fmt) 1214 continue; 1215 1216 len += snprintf(buf + len, size - len, dtp->fmt, 1217 dtp->data1, dtp->data2, dtp->data3); 1218 1219 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1220 phba->nvmeio_trc_output_idx = 0; 1221 len += snprintf(buf + len, size - len, 1222 "Trace Complete\n"); 1223 goto out; 1224 } 1225 1226 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1227 len += snprintf(buf + len, size - len, 1228 "Trace Continue (%d of %d)\n", 1229 phba->nvmeio_trc_output_idx, 1230 phba->nvmeio_trc_size); 1231 goto out; 1232 } 1233 } 1234 1235 len += snprintf(buf + len, size - len, 1236 "Trace Done\n"); 1237 out: 1238 return len; 1239 } 1240 1241 /** 1242 * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer 1243 * @vport: The vport to gather target node info from. 1244 * @buf: The buffer to dump log into. 1245 * @size: The maximum amount of data to process. 1246 * 1247 * Description: 1248 * This routine dumps the NVME statistics associated with @vport 1249 * 1250 * Return Value: 1251 * This routine returns the amount of bytes that were dumped into @buf and will 1252 * not exceed @size. 1253 **/ 1254 static int 1255 lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size) 1256 { 1257 struct lpfc_hba *phba = vport->phba; 1258 int i; 1259 int len = 0; 1260 uint32_t tot_xmt = 0; 1261 uint32_t tot_rcv = 0; 1262 uint32_t tot_cmpl = 0; 1263 uint32_t tot_ccmpl = 0; 1264 1265 if (phba->nvmet_support == 0) { 1266 /* NVME Initiator */ 1267 len += snprintf(buf + len, PAGE_SIZE - len, 1268 "CPUcheck %s\n", 1269 (phba->cpucheck_on & LPFC_CHECK_NVME_IO ? 1270 "Enabled" : "Disabled")); 1271 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1272 if (i >= LPFC_CHECK_CPU_CNT) 1273 break; 1274 len += snprintf(buf + len, PAGE_SIZE - len, 1275 "%02d: xmit x%08x cmpl x%08x\n", 1276 i, phba->cpucheck_xmt_io[i], 1277 phba->cpucheck_cmpl_io[i]); 1278 tot_xmt += phba->cpucheck_xmt_io[i]; 1279 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1280 } 1281 len += snprintf(buf + len, PAGE_SIZE - len, 1282 "tot:xmit x%08x cmpl x%08x\n", 1283 tot_xmt, tot_cmpl); 1284 return len; 1285 } 1286 1287 /* NVME Target */ 1288 len += snprintf(buf + len, PAGE_SIZE - len, 1289 "CPUcheck %s ", 1290 (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ? 1291 "IO Enabled - " : "IO Disabled - ")); 1292 len += snprintf(buf + len, PAGE_SIZE - len, 1293 "%s\n", 1294 (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ? 1295 "Rcv Enabled\n" : "Rcv Disabled\n")); 1296 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1297 if (i >= LPFC_CHECK_CPU_CNT) 1298 break; 1299 len += snprintf(buf + len, PAGE_SIZE - len, 1300 "%02d: xmit x%08x ccmpl x%08x " 1301 "cmpl x%08x rcv x%08x\n", 1302 i, phba->cpucheck_xmt_io[i], 1303 phba->cpucheck_ccmpl_io[i], 1304 phba->cpucheck_cmpl_io[i], 1305 phba->cpucheck_rcv_io[i]); 1306 tot_xmt += phba->cpucheck_xmt_io[i]; 1307 tot_rcv += phba->cpucheck_rcv_io[i]; 1308 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1309 tot_ccmpl += phba->cpucheck_ccmpl_io[i]; 1310 } 1311 len += snprintf(buf + len, PAGE_SIZE - len, 1312 "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n", 1313 tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv); 1314 return len; 1315 } 1316 1317 #endif 1318 1319 /** 1320 * lpfc_debugfs_disc_trc - Store discovery trace log 1321 * @vport: The vport to associate this trace string with for retrieval. 1322 * @mask: Log entry classification. 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. Only entries with a @mask that 1331 * match the current debugfs discovery mask will be saved. Entries that do not 1332 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1333 * printf when displaying the log. 1334 **/ 1335 inline void 1336 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1337 uint32_t data1, uint32_t data2, uint32_t data3) 1338 { 1339 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1340 struct lpfc_debugfs_trc *dtp; 1341 int index; 1342 1343 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1344 return; 1345 1346 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1347 !vport || !vport->disc_trc) 1348 return; 1349 1350 index = atomic_inc_return(&vport->disc_trc_cnt) & 1351 (lpfc_debugfs_max_disc_trc - 1); 1352 dtp = vport->disc_trc + index; 1353 dtp->fmt = fmt; 1354 dtp->data1 = data1; 1355 dtp->data2 = data2; 1356 dtp->data3 = data3; 1357 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1358 dtp->jif = jiffies; 1359 #endif 1360 return; 1361 } 1362 1363 /** 1364 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1365 * @phba: The phba to associate this trace string with for retrieval. 1366 * @fmt: Format string to be displayed when dumping the log. 1367 * @data1: 1st data parameter to be applied to @fmt. 1368 * @data2: 2nd data parameter to be applied to @fmt. 1369 * @data3: 3rd data parameter to be applied to @fmt. 1370 * 1371 * Description: 1372 * This routine is used by the driver code to add a debugfs log entry to the 1373 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1374 * @data3 are used like printf when displaying the log. 1375 **/ 1376 inline void 1377 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1378 uint32_t data1, uint32_t data2, uint32_t data3) 1379 { 1380 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1381 struct lpfc_debugfs_trc *dtp; 1382 int index; 1383 1384 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1385 !phba || !phba->slow_ring_trc) 1386 return; 1387 1388 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1389 (lpfc_debugfs_max_slow_ring_trc - 1); 1390 dtp = phba->slow_ring_trc + index; 1391 dtp->fmt = fmt; 1392 dtp->data1 = data1; 1393 dtp->data2 = data2; 1394 dtp->data3 = data3; 1395 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1396 dtp->jif = jiffies; 1397 #endif 1398 return; 1399 } 1400 1401 /** 1402 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1403 * @phba: The phba to associate this trace string with for retrieval. 1404 * @fmt: Format string to be displayed when dumping the log. 1405 * @data1: 1st data parameter to be applied to @fmt. 1406 * @data2: 2nd data parameter to be applied to @fmt. 1407 * @data3: 3rd data parameter to be applied to @fmt. 1408 * 1409 * Description: 1410 * This routine is used by the driver code to add a debugfs log entry to the 1411 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1412 * @data3 are used like printf when displaying the log. 1413 **/ 1414 inline void 1415 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1416 uint16_t data1, uint16_t data2, uint32_t data3) 1417 { 1418 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1419 struct lpfc_debugfs_nvmeio_trc *dtp; 1420 int index; 1421 1422 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1423 return; 1424 1425 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1426 (phba->nvmeio_trc_size - 1); 1427 dtp = phba->nvmeio_trc + index; 1428 dtp->fmt = fmt; 1429 dtp->data1 = data1; 1430 dtp->data2 = data2; 1431 dtp->data3 = data3; 1432 #endif 1433 } 1434 1435 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1436 /** 1437 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1438 * @inode: The inode pointer that contains a vport pointer. 1439 * @file: The file pointer to attach the log output. 1440 * 1441 * Description: 1442 * This routine is the entry point for the debugfs open file operation. It gets 1443 * the vport from the i_private field in @inode, allocates the necessary buffer 1444 * for the log, fills the buffer from the in-memory log for this vport, and then 1445 * returns a pointer to that log in the private_data field in @file. 1446 * 1447 * Returns: 1448 * This function returns zero if successful. On error it will return a negative 1449 * error value. 1450 **/ 1451 static int 1452 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1453 { 1454 struct lpfc_vport *vport = inode->i_private; 1455 struct lpfc_debug *debug; 1456 int size; 1457 int rc = -ENOMEM; 1458 1459 if (!lpfc_debugfs_max_disc_trc) { 1460 rc = -ENOSPC; 1461 goto out; 1462 } 1463 1464 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1465 if (!debug) 1466 goto out; 1467 1468 /* Round to page boundary */ 1469 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1470 size = PAGE_ALIGN(size); 1471 1472 debug->buffer = kmalloc(size, GFP_KERNEL); 1473 if (!debug->buffer) { 1474 kfree(debug); 1475 goto out; 1476 } 1477 1478 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1479 file->private_data = debug; 1480 1481 rc = 0; 1482 out: 1483 return rc; 1484 } 1485 1486 /** 1487 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1488 * @inode: The inode pointer that contains a vport pointer. 1489 * @file: The file pointer to attach the log output. 1490 * 1491 * Description: 1492 * This routine is the entry point for the debugfs open file operation. It gets 1493 * the vport from the i_private field in @inode, allocates the necessary buffer 1494 * for the log, fills the buffer from the in-memory log for this vport, and then 1495 * returns a pointer to that log in the private_data field in @file. 1496 * 1497 * Returns: 1498 * This function returns zero if successful. On error it will return a negative 1499 * error value. 1500 **/ 1501 static int 1502 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1503 { 1504 struct lpfc_hba *phba = inode->i_private; 1505 struct lpfc_debug *debug; 1506 int size; 1507 int rc = -ENOMEM; 1508 1509 if (!lpfc_debugfs_max_slow_ring_trc) { 1510 rc = -ENOSPC; 1511 goto out; 1512 } 1513 1514 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1515 if (!debug) 1516 goto out; 1517 1518 /* Round to page boundary */ 1519 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1520 size = PAGE_ALIGN(size); 1521 1522 debug->buffer = kmalloc(size, GFP_KERNEL); 1523 if (!debug->buffer) { 1524 kfree(debug); 1525 goto out; 1526 } 1527 1528 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 1529 file->private_data = debug; 1530 1531 rc = 0; 1532 out: 1533 return rc; 1534 } 1535 1536 /** 1537 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 1538 * @inode: The inode pointer that contains a vport pointer. 1539 * @file: The file pointer to attach the log output. 1540 * 1541 * Description: 1542 * This routine is the entry point for the debugfs open file operation. It gets 1543 * the vport from the i_private field in @inode, allocates the necessary buffer 1544 * for the log, fills the buffer from the in-memory log for this vport, and then 1545 * returns a pointer to that log in the private_data field in @file. 1546 * 1547 * Returns: 1548 * This function returns zero if successful. On error it will return a negative 1549 * error value. 1550 **/ 1551 static int 1552 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 1553 { 1554 struct lpfc_hba *phba = inode->i_private; 1555 struct lpfc_debug *debug; 1556 int rc = -ENOMEM; 1557 1558 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1559 if (!debug) 1560 goto out; 1561 1562 /* Round to page boundary */ 1563 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 1564 if (!debug->buffer) { 1565 kfree(debug); 1566 goto out; 1567 } 1568 1569 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 1570 LPFC_HBQINFO_SIZE); 1571 file->private_data = debug; 1572 1573 rc = 0; 1574 out: 1575 return rc; 1576 } 1577 1578 /** 1579 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 1580 * @inode: The inode pointer that contains a vport pointer. 1581 * @file: The file pointer to attach the log output. 1582 * 1583 * Description: 1584 * This routine is the entry point for the debugfs open file operation. It gets 1585 * the vport from the i_private field in @inode, allocates the necessary buffer 1586 * for the log, fills the buffer from the in-memory log for this vport, and then 1587 * returns a pointer to that log in the private_data field in @file. 1588 * 1589 * Returns: 1590 * This function returns zero if successful. On error it will return a negative 1591 * error value. 1592 **/ 1593 static int 1594 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 1595 { 1596 struct lpfc_hba *phba = inode->i_private; 1597 struct lpfc_debug *debug; 1598 int rc = -ENOMEM; 1599 1600 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1601 if (!debug) 1602 goto out; 1603 1604 /* Round to page boundary */ 1605 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 1606 if (!debug->buffer) { 1607 kfree(debug); 1608 goto out; 1609 } 1610 1611 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 1612 LPFC_DUMPHBASLIM_SIZE); 1613 file->private_data = debug; 1614 1615 rc = 0; 1616 out: 1617 return rc; 1618 } 1619 1620 /** 1621 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 1622 * @inode: The inode pointer that contains a vport pointer. 1623 * @file: The file pointer to attach the log output. 1624 * 1625 * Description: 1626 * This routine is the entry point for the debugfs open file operation. It gets 1627 * the vport from the i_private field in @inode, allocates the necessary buffer 1628 * for the log, fills the buffer from the in-memory log for this vport, and then 1629 * returns a pointer to that log in the private_data field in @file. 1630 * 1631 * Returns: 1632 * This function returns zero if successful. On error it will return a negative 1633 * error value. 1634 **/ 1635 static int 1636 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 1637 { 1638 struct lpfc_hba *phba = inode->i_private; 1639 struct lpfc_debug *debug; 1640 int rc = -ENOMEM; 1641 1642 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1643 if (!debug) 1644 goto out; 1645 1646 /* Round to page boundary */ 1647 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 1648 if (!debug->buffer) { 1649 kfree(debug); 1650 goto out; 1651 } 1652 1653 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 1654 LPFC_DUMPHOSTSLIM_SIZE); 1655 file->private_data = debug; 1656 1657 rc = 0; 1658 out: 1659 return rc; 1660 } 1661 1662 static int 1663 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) 1664 { 1665 struct lpfc_debug *debug; 1666 int rc = -ENOMEM; 1667 1668 if (!_dump_buf_data) 1669 return -EBUSY; 1670 1671 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1672 if (!debug) 1673 goto out; 1674 1675 /* Round to page boundary */ 1676 pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n", 1677 __func__, _dump_buf_data); 1678 debug->buffer = _dump_buf_data; 1679 if (!debug->buffer) { 1680 kfree(debug); 1681 goto out; 1682 } 1683 1684 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; 1685 file->private_data = debug; 1686 1687 rc = 0; 1688 out: 1689 return rc; 1690 } 1691 1692 static int 1693 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) 1694 { 1695 struct lpfc_debug *debug; 1696 int rc = -ENOMEM; 1697 1698 if (!_dump_buf_dif) 1699 return -EBUSY; 1700 1701 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1702 if (!debug) 1703 goto out; 1704 1705 /* Round to page boundary */ 1706 pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n", 1707 __func__, _dump_buf_dif, file); 1708 debug->buffer = _dump_buf_dif; 1709 if (!debug->buffer) { 1710 kfree(debug); 1711 goto out; 1712 } 1713 1714 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; 1715 file->private_data = debug; 1716 1717 rc = 0; 1718 out: 1719 return rc; 1720 } 1721 1722 static ssize_t 1723 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, 1724 size_t nbytes, loff_t *ppos) 1725 { 1726 /* 1727 * The Data/DIF buffers only save one failing IO 1728 * The write op is used as a reset mechanism after an IO has 1729 * already been saved to the next one can be saved 1730 */ 1731 spin_lock(&_dump_buf_lock); 1732 1733 memset((void *)_dump_buf_data, 0, 1734 ((1 << PAGE_SHIFT) << _dump_buf_data_order)); 1735 memset((void *)_dump_buf_dif, 0, 1736 ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); 1737 1738 _dump_buf_done = 0; 1739 1740 spin_unlock(&_dump_buf_lock); 1741 1742 return nbytes; 1743 } 1744 1745 static ssize_t 1746 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 1747 size_t nbytes, loff_t *ppos) 1748 { 1749 struct dentry *dent = file->f_path.dentry; 1750 struct lpfc_hba *phba = file->private_data; 1751 char cbuf[32]; 1752 uint64_t tmp = 0; 1753 int cnt = 0; 1754 1755 if (dent == phba->debug_writeGuard) 1756 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 1757 else if (dent == phba->debug_writeApp) 1758 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 1759 else if (dent == phba->debug_writeRef) 1760 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 1761 else if (dent == phba->debug_readGuard) 1762 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 1763 else if (dent == phba->debug_readApp) 1764 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 1765 else if (dent == phba->debug_readRef) 1766 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 1767 else if (dent == phba->debug_InjErrNPortID) 1768 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); 1769 else if (dent == phba->debug_InjErrWWPN) { 1770 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 1771 tmp = cpu_to_be64(tmp); 1772 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); 1773 } else if (dent == phba->debug_InjErrLBA) { 1774 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 1775 cnt = snprintf(cbuf, 32, "off\n"); 1776 else 1777 cnt = snprintf(cbuf, 32, "0x%llx\n", 1778 (uint64_t) phba->lpfc_injerr_lba); 1779 } else 1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1781 "0547 Unknown debugfs error injection entry\n"); 1782 1783 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 1784 } 1785 1786 static ssize_t 1787 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 1788 size_t nbytes, loff_t *ppos) 1789 { 1790 struct dentry *dent = file->f_path.dentry; 1791 struct lpfc_hba *phba = file->private_data; 1792 char dstbuf[33]; 1793 uint64_t tmp = 0; 1794 int size; 1795 1796 memset(dstbuf, 0, 33); 1797 size = (nbytes < 32) ? nbytes : 32; 1798 if (copy_from_user(dstbuf, buf, size)) 1799 return 0; 1800 1801 if (dent == phba->debug_InjErrLBA) { 1802 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 1803 tmp = (uint64_t)(-1); 1804 } 1805 1806 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 1807 return 0; 1808 1809 if (dent == phba->debug_writeGuard) 1810 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 1811 else if (dent == phba->debug_writeApp) 1812 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 1813 else if (dent == phba->debug_writeRef) 1814 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 1815 else if (dent == phba->debug_readGuard) 1816 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 1817 else if (dent == phba->debug_readApp) 1818 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 1819 else if (dent == phba->debug_readRef) 1820 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 1821 else if (dent == phba->debug_InjErrLBA) 1822 phba->lpfc_injerr_lba = (sector_t)tmp; 1823 else if (dent == phba->debug_InjErrNPortID) 1824 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 1825 else if (dent == phba->debug_InjErrWWPN) { 1826 tmp = cpu_to_be64(tmp); 1827 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 1828 } else 1829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1830 "0548 Unknown debugfs error injection entry\n"); 1831 1832 return nbytes; 1833 } 1834 1835 static int 1836 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 1837 { 1838 return 0; 1839 } 1840 1841 /** 1842 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 1843 * @inode: The inode pointer that contains a vport pointer. 1844 * @file: The file pointer to attach the log output. 1845 * 1846 * Description: 1847 * This routine is the entry point for the debugfs open file operation. It gets 1848 * the vport from the i_private field in @inode, allocates the necessary buffer 1849 * for the log, fills the buffer from the in-memory log for this vport, and then 1850 * returns a pointer to that log in the private_data field in @file. 1851 * 1852 * Returns: 1853 * This function returns zero if successful. On error it will return a negative 1854 * error value. 1855 **/ 1856 static int 1857 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 1858 { 1859 struct lpfc_vport *vport = inode->i_private; 1860 struct lpfc_debug *debug; 1861 int rc = -ENOMEM; 1862 1863 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1864 if (!debug) 1865 goto out; 1866 1867 /* Round to page boundary */ 1868 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 1869 if (!debug->buffer) { 1870 kfree(debug); 1871 goto out; 1872 } 1873 1874 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 1875 LPFC_NODELIST_SIZE); 1876 file->private_data = debug; 1877 1878 rc = 0; 1879 out: 1880 return rc; 1881 } 1882 1883 /** 1884 * lpfc_debugfs_lseek - Seek through a debugfs file 1885 * @file: The file pointer to seek through. 1886 * @off: The offset to seek to or the amount to seek by. 1887 * @whence: Indicates how to seek. 1888 * 1889 * Description: 1890 * This routine is the entry point for the debugfs lseek file operation. The 1891 * @whence parameter indicates whether @off is the offset to directly seek to, 1892 * or if it is a value to seek forward or reverse by. This function figures out 1893 * what the new offset of the debugfs file will be and assigns that value to the 1894 * f_pos field of @file. 1895 * 1896 * Returns: 1897 * This function returns the new offset if successful and returns a negative 1898 * error if unable to process the seek. 1899 **/ 1900 static loff_t 1901 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 1902 { 1903 struct lpfc_debug *debug = file->private_data; 1904 return fixed_size_llseek(file, off, whence, debug->len); 1905 } 1906 1907 /** 1908 * lpfc_debugfs_read - Read a debugfs file 1909 * @file: The file pointer to read from. 1910 * @buf: The buffer to copy the data to. 1911 * @nbytes: The number of bytes to read. 1912 * @ppos: The position in the file to start reading from. 1913 * 1914 * Description: 1915 * This routine reads data from from the buffer indicated in the private_data 1916 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1917 * data to @buf. 1918 * 1919 * Returns: 1920 * This function returns the amount of data that was read (this could be less 1921 * than @nbytes if the end of the file was reached) or a negative error value. 1922 **/ 1923 static ssize_t 1924 lpfc_debugfs_read(struct file *file, char __user *buf, 1925 size_t nbytes, loff_t *ppos) 1926 { 1927 struct lpfc_debug *debug = file->private_data; 1928 1929 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1930 debug->len); 1931 } 1932 1933 /** 1934 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1935 * @inode: The inode pointer that contains a vport pointer. (unused) 1936 * @file: The file pointer that contains the buffer to release. 1937 * 1938 * Description: 1939 * This routine frees the buffer that was allocated when the debugfs file was 1940 * opened. 1941 * 1942 * Returns: 1943 * This function returns zero. 1944 **/ 1945 static int 1946 lpfc_debugfs_release(struct inode *inode, struct file *file) 1947 { 1948 struct lpfc_debug *debug = file->private_data; 1949 1950 kfree(debug->buffer); 1951 kfree(debug); 1952 1953 return 0; 1954 } 1955 1956 static int 1957 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1958 { 1959 struct lpfc_debug *debug = file->private_data; 1960 1961 debug->buffer = NULL; 1962 kfree(debug); 1963 1964 return 0; 1965 } 1966 1967 1968 static int 1969 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 1970 { 1971 struct lpfc_vport *vport = inode->i_private; 1972 struct lpfc_debug *debug; 1973 int rc = -ENOMEM; 1974 1975 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1976 if (!debug) 1977 goto out; 1978 1979 /* Round to page boundary */ 1980 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 1981 if (!debug->buffer) { 1982 kfree(debug); 1983 goto out; 1984 } 1985 1986 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 1987 LPFC_NVMESTAT_SIZE); 1988 1989 debug->i_private = inode->i_private; 1990 file->private_data = debug; 1991 1992 rc = 0; 1993 out: 1994 return rc; 1995 } 1996 1997 static ssize_t 1998 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 1999 size_t nbytes, loff_t *ppos) 2000 { 2001 struct lpfc_debug *debug = file->private_data; 2002 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2003 struct lpfc_hba *phba = vport->phba; 2004 struct lpfc_nvmet_tgtport *tgtp; 2005 char mybuf[64]; 2006 char *pbuf; 2007 2008 if (!phba->targetport) 2009 return -ENXIO; 2010 2011 if (nbytes > 64) 2012 nbytes = 64; 2013 2014 memset(mybuf, 0, sizeof(mybuf)); 2015 2016 if (copy_from_user(mybuf, buf, nbytes)) 2017 return -EFAULT; 2018 pbuf = &mybuf[0]; 2019 2020 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2021 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2022 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2023 atomic_set(&tgtp->rcv_ls_req_in, 0); 2024 atomic_set(&tgtp->rcv_ls_req_out, 0); 2025 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2026 atomic_set(&tgtp->xmt_ls_abort, 0); 2027 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2028 atomic_set(&tgtp->xmt_ls_rsp, 0); 2029 atomic_set(&tgtp->xmt_ls_drop, 0); 2030 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2031 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2032 2033 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2034 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2035 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2036 atomic_set(&tgtp->xmt_fcp_drop, 0); 2037 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2038 atomic_set(&tgtp->xmt_fcp_read, 0); 2039 atomic_set(&tgtp->xmt_fcp_write, 0); 2040 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2041 atomic_set(&tgtp->xmt_fcp_release, 0); 2042 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2043 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2044 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2045 2046 atomic_set(&tgtp->xmt_fcp_abort, 0); 2047 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2048 atomic_set(&tgtp->xmt_abort_sol, 0); 2049 atomic_set(&tgtp->xmt_abort_unsol, 0); 2050 atomic_set(&tgtp->xmt_abort_rsp, 0); 2051 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2052 } 2053 return nbytes; 2054 } 2055 2056 static int 2057 lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file) 2058 { 2059 struct lpfc_vport *vport = inode->i_private; 2060 struct lpfc_debug *debug; 2061 int rc = -ENOMEM; 2062 2063 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2064 if (!debug) 2065 goto out; 2066 2067 /* Round to page boundary */ 2068 debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL); 2069 if (!debug->buffer) { 2070 kfree(debug); 2071 goto out; 2072 } 2073 2074 debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer, 2075 LPFC_NVMEKTIME_SIZE); 2076 2077 debug->i_private = inode->i_private; 2078 file->private_data = debug; 2079 2080 rc = 0; 2081 out: 2082 return rc; 2083 } 2084 2085 static ssize_t 2086 lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf, 2087 size_t nbytes, loff_t *ppos) 2088 { 2089 struct lpfc_debug *debug = file->private_data; 2090 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2091 struct lpfc_hba *phba = vport->phba; 2092 char mybuf[64]; 2093 char *pbuf; 2094 2095 if (nbytes > 64) 2096 nbytes = 64; 2097 2098 memset(mybuf, 0, sizeof(mybuf)); 2099 2100 if (copy_from_user(mybuf, buf, nbytes)) 2101 return -EFAULT; 2102 pbuf = &mybuf[0]; 2103 2104 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2105 phba->ktime_data_samples = 0; 2106 phba->ktime_status_samples = 0; 2107 phba->ktime_seg1_total = 0; 2108 phba->ktime_seg1_max = 0; 2109 phba->ktime_seg1_min = 0xffffffff; 2110 phba->ktime_seg2_total = 0; 2111 phba->ktime_seg2_max = 0; 2112 phba->ktime_seg2_min = 0xffffffff; 2113 phba->ktime_seg3_total = 0; 2114 phba->ktime_seg3_max = 0; 2115 phba->ktime_seg3_min = 0xffffffff; 2116 phba->ktime_seg4_total = 0; 2117 phba->ktime_seg4_max = 0; 2118 phba->ktime_seg4_min = 0xffffffff; 2119 phba->ktime_seg5_total = 0; 2120 phba->ktime_seg5_max = 0; 2121 phba->ktime_seg5_min = 0xffffffff; 2122 phba->ktime_seg6_total = 0; 2123 phba->ktime_seg6_max = 0; 2124 phba->ktime_seg6_min = 0xffffffff; 2125 phba->ktime_seg7_total = 0; 2126 phba->ktime_seg7_max = 0; 2127 phba->ktime_seg7_min = 0xffffffff; 2128 phba->ktime_seg8_total = 0; 2129 phba->ktime_seg8_max = 0; 2130 phba->ktime_seg8_min = 0xffffffff; 2131 phba->ktime_seg9_total = 0; 2132 phba->ktime_seg9_max = 0; 2133 phba->ktime_seg9_min = 0xffffffff; 2134 phba->ktime_seg10_total = 0; 2135 phba->ktime_seg10_max = 0; 2136 phba->ktime_seg10_min = 0xffffffff; 2137 2138 phba->ktime_on = 1; 2139 return strlen(pbuf); 2140 } else if ((strncmp(pbuf, "off", 2141 sizeof("off") - 1) == 0)) { 2142 phba->ktime_on = 0; 2143 return strlen(pbuf); 2144 } else if ((strncmp(pbuf, "zero", 2145 sizeof("zero") - 1) == 0)) { 2146 phba->ktime_data_samples = 0; 2147 phba->ktime_status_samples = 0; 2148 phba->ktime_seg1_total = 0; 2149 phba->ktime_seg1_max = 0; 2150 phba->ktime_seg1_min = 0xffffffff; 2151 phba->ktime_seg2_total = 0; 2152 phba->ktime_seg2_max = 0; 2153 phba->ktime_seg2_min = 0xffffffff; 2154 phba->ktime_seg3_total = 0; 2155 phba->ktime_seg3_max = 0; 2156 phba->ktime_seg3_min = 0xffffffff; 2157 phba->ktime_seg4_total = 0; 2158 phba->ktime_seg4_max = 0; 2159 phba->ktime_seg4_min = 0xffffffff; 2160 phba->ktime_seg5_total = 0; 2161 phba->ktime_seg5_max = 0; 2162 phba->ktime_seg5_min = 0xffffffff; 2163 phba->ktime_seg6_total = 0; 2164 phba->ktime_seg6_max = 0; 2165 phba->ktime_seg6_min = 0xffffffff; 2166 phba->ktime_seg7_total = 0; 2167 phba->ktime_seg7_max = 0; 2168 phba->ktime_seg7_min = 0xffffffff; 2169 phba->ktime_seg8_total = 0; 2170 phba->ktime_seg8_max = 0; 2171 phba->ktime_seg8_min = 0xffffffff; 2172 phba->ktime_seg9_total = 0; 2173 phba->ktime_seg9_max = 0; 2174 phba->ktime_seg9_min = 0xffffffff; 2175 phba->ktime_seg10_total = 0; 2176 phba->ktime_seg10_max = 0; 2177 phba->ktime_seg10_min = 0xffffffff; 2178 return strlen(pbuf); 2179 } 2180 return -EINVAL; 2181 } 2182 2183 static int 2184 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2185 { 2186 struct lpfc_hba *phba = inode->i_private; 2187 struct lpfc_debug *debug; 2188 int rc = -ENOMEM; 2189 2190 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2191 if (!debug) 2192 goto out; 2193 2194 /* Round to page boundary */ 2195 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2196 if (!debug->buffer) { 2197 kfree(debug); 2198 goto out; 2199 } 2200 2201 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2202 LPFC_NVMEIO_TRC_SIZE); 2203 2204 debug->i_private = inode->i_private; 2205 file->private_data = debug; 2206 2207 rc = 0; 2208 out: 2209 return rc; 2210 } 2211 2212 static ssize_t 2213 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2214 size_t nbytes, loff_t *ppos) 2215 { 2216 struct lpfc_debug *debug = file->private_data; 2217 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2218 int i; 2219 unsigned long sz; 2220 char mybuf[64]; 2221 char *pbuf; 2222 2223 if (nbytes > 64) 2224 nbytes = 64; 2225 2226 memset(mybuf, 0, sizeof(mybuf)); 2227 2228 if (copy_from_user(mybuf, buf, nbytes)) 2229 return -EFAULT; 2230 pbuf = &mybuf[0]; 2231 2232 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2234 "0570 nvmeio_trc_off\n"); 2235 phba->nvmeio_trc_output_idx = 0; 2236 phba->nvmeio_trc_on = 0; 2237 return strlen(pbuf); 2238 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2240 "0571 nvmeio_trc_on\n"); 2241 phba->nvmeio_trc_output_idx = 0; 2242 phba->nvmeio_trc_on = 1; 2243 return strlen(pbuf); 2244 } 2245 2246 /* We must be off to allocate the trace buffer */ 2247 if (phba->nvmeio_trc_on != 0) 2248 return -EINVAL; 2249 2250 /* If not on or off, the parameter is the trace buffer size */ 2251 i = kstrtoul(pbuf, 0, &sz); 2252 if (i) 2253 return -EINVAL; 2254 phba->nvmeio_trc_size = (uint32_t)sz; 2255 2256 /* It must be a power of 2 - round down */ 2257 i = 0; 2258 while (sz > 1) { 2259 sz = sz >> 1; 2260 i++; 2261 } 2262 sz = (1 << i); 2263 if (phba->nvmeio_trc_size != sz) 2264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2265 "0572 nvmeio_trc_size changed to %ld\n", 2266 sz); 2267 phba->nvmeio_trc_size = (uint32_t)sz; 2268 2269 /* If one previously exists, free it */ 2270 kfree(phba->nvmeio_trc); 2271 2272 /* Allocate new trace buffer and initialize */ 2273 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 2274 sz), GFP_KERNEL); 2275 if (!phba->nvmeio_trc) { 2276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2277 "0573 Cannot create debugfs " 2278 "nvmeio_trc buffer\n"); 2279 return -ENOMEM; 2280 } 2281 atomic_set(&phba->nvmeio_trc_cnt, 0); 2282 phba->nvmeio_trc_on = 0; 2283 phba->nvmeio_trc_output_idx = 0; 2284 2285 return strlen(pbuf); 2286 } 2287 2288 static int 2289 lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file) 2290 { 2291 struct lpfc_vport *vport = inode->i_private; 2292 struct lpfc_debug *debug; 2293 int rc = -ENOMEM; 2294 2295 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2296 if (!debug) 2297 goto out; 2298 2299 /* Round to page boundary */ 2300 debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL); 2301 if (!debug->buffer) { 2302 kfree(debug); 2303 goto out; 2304 } 2305 2306 debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer, 2307 LPFC_NVMEKTIME_SIZE); 2308 2309 debug->i_private = inode->i_private; 2310 file->private_data = debug; 2311 2312 rc = 0; 2313 out: 2314 return rc; 2315 } 2316 2317 static ssize_t 2318 lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf, 2319 size_t nbytes, loff_t *ppos) 2320 { 2321 struct lpfc_debug *debug = file->private_data; 2322 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2323 struct lpfc_hba *phba = vport->phba; 2324 char mybuf[64]; 2325 char *pbuf; 2326 int i; 2327 2328 if (nbytes > 64) 2329 nbytes = 64; 2330 2331 memset(mybuf, 0, sizeof(mybuf)); 2332 2333 if (copy_from_user(mybuf, buf, nbytes)) 2334 return -EFAULT; 2335 pbuf = &mybuf[0]; 2336 2337 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2338 if (phba->nvmet_support) 2339 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO; 2340 else 2341 phba->cpucheck_on |= LPFC_CHECK_NVME_IO; 2342 return strlen(pbuf); 2343 } else if ((strncmp(pbuf, "rcv", 2344 sizeof("rcv") - 1) == 0)) { 2345 if (phba->nvmet_support) 2346 phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV; 2347 else 2348 return -EINVAL; 2349 return strlen(pbuf); 2350 } else if ((strncmp(pbuf, "off", 2351 sizeof("off") - 1) == 0)) { 2352 phba->cpucheck_on = LPFC_CHECK_OFF; 2353 return strlen(pbuf); 2354 } else if ((strncmp(pbuf, "zero", 2355 sizeof("zero") - 1) == 0)) { 2356 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 2357 if (i >= LPFC_CHECK_CPU_CNT) 2358 break; 2359 phba->cpucheck_rcv_io[i] = 0; 2360 phba->cpucheck_xmt_io[i] = 0; 2361 phba->cpucheck_cmpl_io[i] = 0; 2362 phba->cpucheck_ccmpl_io[i] = 0; 2363 } 2364 return strlen(pbuf); 2365 } 2366 return -EINVAL; 2367 } 2368 2369 /* 2370 * --------------------------------- 2371 * iDiag debugfs file access methods 2372 * --------------------------------- 2373 * 2374 * All access methods are through the proper SLI4 PCI function's debugfs 2375 * iDiag directory: 2376 * 2377 * /sys/kernel/debug/lpfc/fn<#>/iDiag 2378 */ 2379 2380 /** 2381 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 2382 * @buf: The pointer to the user space buffer. 2383 * @nbytes: The number of bytes in the user space buffer. 2384 * @idiag_cmd: pointer to the idiag command struct. 2385 * 2386 * This routine reads data from debugfs user space buffer and parses the 2387 * buffer for getting the idiag command and arguments. The while space in 2388 * between the set of data is used as the parsing separator. 2389 * 2390 * This routine returns 0 when successful, it returns proper error code 2391 * back to the user space in error conditions. 2392 */ 2393 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 2394 struct lpfc_idiag_cmd *idiag_cmd) 2395 { 2396 char mybuf[64]; 2397 char *pbuf, *step_str; 2398 int i; 2399 size_t bsize; 2400 2401 memset(mybuf, 0, sizeof(mybuf)); 2402 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 2403 bsize = min(nbytes, (sizeof(mybuf)-1)); 2404 2405 if (copy_from_user(mybuf, buf, bsize)) 2406 return -EFAULT; 2407 pbuf = &mybuf[0]; 2408 step_str = strsep(&pbuf, "\t "); 2409 2410 /* The opcode must present */ 2411 if (!step_str) 2412 return -EINVAL; 2413 2414 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 2415 if (idiag_cmd->opcode == 0) 2416 return -EINVAL; 2417 2418 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 2419 step_str = strsep(&pbuf, "\t "); 2420 if (!step_str) 2421 return i; 2422 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 2423 } 2424 return i; 2425 } 2426 2427 /** 2428 * lpfc_idiag_open - idiag open debugfs 2429 * @inode: The inode pointer that contains a pointer to phba. 2430 * @file: The file pointer to attach the file operation. 2431 * 2432 * Description: 2433 * This routine is the entry point for the debugfs open file operation. It 2434 * gets the reference to phba from the i_private field in @inode, it then 2435 * allocates buffer for the file operation, performs the necessary PCI config 2436 * space read into the allocated buffer according to the idiag user command 2437 * setup, and then returns a pointer to buffer in the private_data field in 2438 * @file. 2439 * 2440 * Returns: 2441 * This function returns zero if successful. On error it will return an 2442 * negative error value. 2443 **/ 2444 static int 2445 lpfc_idiag_open(struct inode *inode, struct file *file) 2446 { 2447 struct lpfc_debug *debug; 2448 2449 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2450 if (!debug) 2451 return -ENOMEM; 2452 2453 debug->i_private = inode->i_private; 2454 debug->buffer = NULL; 2455 file->private_data = debug; 2456 2457 return 0; 2458 } 2459 2460 /** 2461 * lpfc_idiag_release - Release idiag access file operation 2462 * @inode: The inode pointer that contains a vport pointer. (unused) 2463 * @file: The file pointer that contains the buffer to release. 2464 * 2465 * Description: 2466 * This routine is the generic release routine for the idiag access file 2467 * operation, it frees the buffer that was allocated when the debugfs file 2468 * was opened. 2469 * 2470 * Returns: 2471 * This function returns zero. 2472 **/ 2473 static int 2474 lpfc_idiag_release(struct inode *inode, struct file *file) 2475 { 2476 struct lpfc_debug *debug = file->private_data; 2477 2478 /* Free the buffers to the file operation */ 2479 kfree(debug->buffer); 2480 kfree(debug); 2481 2482 return 0; 2483 } 2484 2485 /** 2486 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 2487 * @inode: The inode pointer that contains a vport pointer. (unused) 2488 * @file: The file pointer that contains the buffer to release. 2489 * 2490 * Description: 2491 * This routine frees the buffer that was allocated when the debugfs file 2492 * was opened. It also reset the fields in the idiag command struct in the 2493 * case of command for write operation. 2494 * 2495 * Returns: 2496 * This function returns zero. 2497 **/ 2498 static int 2499 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 2500 { 2501 struct lpfc_debug *debug = file->private_data; 2502 2503 if (debug->op == LPFC_IDIAG_OP_WR) { 2504 switch (idiag.cmd.opcode) { 2505 case LPFC_IDIAG_CMD_PCICFG_WR: 2506 case LPFC_IDIAG_CMD_PCICFG_ST: 2507 case LPFC_IDIAG_CMD_PCICFG_CL: 2508 case LPFC_IDIAG_CMD_QUEACC_WR: 2509 case LPFC_IDIAG_CMD_QUEACC_ST: 2510 case LPFC_IDIAG_CMD_QUEACC_CL: 2511 memset(&idiag, 0, sizeof(idiag)); 2512 break; 2513 default: 2514 break; 2515 } 2516 } 2517 2518 /* Free the buffers to the file operation */ 2519 kfree(debug->buffer); 2520 kfree(debug); 2521 2522 return 0; 2523 } 2524 2525 /** 2526 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 2527 * @file: The file pointer to read from. 2528 * @buf: The buffer to copy the data to. 2529 * @nbytes: The number of bytes to read. 2530 * @ppos: The position in the file to start reading from. 2531 * 2532 * Description: 2533 * This routine reads data from the @phba pci config space according to the 2534 * idiag command, and copies to user @buf. Depending on the PCI config space 2535 * read command setup, it does either a single register read of a byte 2536 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 2537 * registers from the 4K extended PCI config space. 2538 * 2539 * Returns: 2540 * This function returns the amount of data that was read (this could be less 2541 * than @nbytes if the end of the file was reached) or a negative error value. 2542 **/ 2543 static ssize_t 2544 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 2545 loff_t *ppos) 2546 { 2547 struct lpfc_debug *debug = file->private_data; 2548 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2549 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 2550 int where, count; 2551 char *pbuffer; 2552 struct pci_dev *pdev; 2553 uint32_t u32val; 2554 uint16_t u16val; 2555 uint8_t u8val; 2556 2557 pdev = phba->pcidev; 2558 if (!pdev) 2559 return 0; 2560 2561 /* This is a user read operation */ 2562 debug->op = LPFC_IDIAG_OP_RD; 2563 2564 if (!debug->buffer) 2565 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 2566 if (!debug->buffer) 2567 return 0; 2568 pbuffer = debug->buffer; 2569 2570 if (*ppos) 2571 return 0; 2572 2573 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2574 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2575 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2576 } else 2577 return 0; 2578 2579 /* Read single PCI config space register */ 2580 switch (count) { 2581 case SIZE_U8: /* byte (8 bits) */ 2582 pci_read_config_byte(pdev, where, &u8val); 2583 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2584 "%03x: %02x\n", where, u8val); 2585 break; 2586 case SIZE_U16: /* word (16 bits) */ 2587 pci_read_config_word(pdev, where, &u16val); 2588 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2589 "%03x: %04x\n", where, u16val); 2590 break; 2591 case SIZE_U32: /* double word (32 bits) */ 2592 pci_read_config_dword(pdev, where, &u32val); 2593 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2594 "%03x: %08x\n", where, u32val); 2595 break; 2596 case LPFC_PCI_CFG_BROWSE: /* browse all */ 2597 goto pcicfg_browse; 2598 break; 2599 default: 2600 /* illegal count */ 2601 len = 0; 2602 break; 2603 } 2604 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2605 2606 pcicfg_browse: 2607 2608 /* Browse all PCI config space registers */ 2609 offset_label = idiag.offset.last_rd; 2610 offset = offset_label; 2611 2612 /* Read PCI config space */ 2613 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2614 "%03x: ", offset_label); 2615 while (index > 0) { 2616 pci_read_config_dword(pdev, offset, &u32val); 2617 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2618 "%08x ", u32val); 2619 offset += sizeof(uint32_t); 2620 if (offset >= LPFC_PCI_CFG_SIZE) { 2621 len += snprintf(pbuffer+len, 2622 LPFC_PCI_CFG_SIZE-len, "\n"); 2623 break; 2624 } 2625 index -= sizeof(uint32_t); 2626 if (!index) 2627 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2628 "\n"); 2629 else if (!(index % (8 * sizeof(uint32_t)))) { 2630 offset_label += (8 * sizeof(uint32_t)); 2631 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2632 "\n%03x: ", offset_label); 2633 } 2634 } 2635 2636 /* Set up the offset for next portion of pci cfg read */ 2637 if (index == 0) { 2638 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 2639 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 2640 idiag.offset.last_rd = 0; 2641 } else 2642 idiag.offset.last_rd = 0; 2643 2644 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2645 } 2646 2647 /** 2648 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 2649 * @file: The file pointer to read from. 2650 * @buf: The buffer to copy the user data from. 2651 * @nbytes: The number of bytes to get. 2652 * @ppos: The position in the file to start reading from. 2653 * 2654 * This routine get the debugfs idiag command struct from user space and 2655 * then perform the syntax check for PCI config space read or write command 2656 * accordingly. In the case of PCI config space read command, it sets up 2657 * the command in the idiag command struct for the debugfs read operation. 2658 * In the case of PCI config space write operation, it executes the write 2659 * operation into the PCI config space accordingly. 2660 * 2661 * It returns the @nbytges passing in from debugfs user space when successful. 2662 * In case of error conditions, it returns proper error code back to the user 2663 * space. 2664 */ 2665 static ssize_t 2666 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 2667 size_t nbytes, loff_t *ppos) 2668 { 2669 struct lpfc_debug *debug = file->private_data; 2670 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2671 uint32_t where, value, count; 2672 uint32_t u32val; 2673 uint16_t u16val; 2674 uint8_t u8val; 2675 struct pci_dev *pdev; 2676 int rc; 2677 2678 pdev = phba->pcidev; 2679 if (!pdev) 2680 return -EFAULT; 2681 2682 /* This is a user write operation */ 2683 debug->op = LPFC_IDIAG_OP_WR; 2684 2685 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2686 if (rc < 0) 2687 return rc; 2688 2689 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2690 /* Sanity check on PCI config read command line arguments */ 2691 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 2692 goto error_out; 2693 /* Read command from PCI config space, set up command fields */ 2694 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2695 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2696 if (count == LPFC_PCI_CFG_BROWSE) { 2697 if (where % sizeof(uint32_t)) 2698 goto error_out; 2699 /* Starting offset to browse */ 2700 idiag.offset.last_rd = where; 2701 } else if ((count != sizeof(uint8_t)) && 2702 (count != sizeof(uint16_t)) && 2703 (count != sizeof(uint32_t))) 2704 goto error_out; 2705 if (count == sizeof(uint8_t)) { 2706 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2707 goto error_out; 2708 if (where % sizeof(uint8_t)) 2709 goto error_out; 2710 } 2711 if (count == sizeof(uint16_t)) { 2712 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2713 goto error_out; 2714 if (where % sizeof(uint16_t)) 2715 goto error_out; 2716 } 2717 if (count == sizeof(uint32_t)) { 2718 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2719 goto error_out; 2720 if (where % sizeof(uint32_t)) 2721 goto error_out; 2722 } 2723 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 2724 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 2725 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2726 /* Sanity check on PCI config write command line arguments */ 2727 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 2728 goto error_out; 2729 /* Write command to PCI config space, read-modify-write */ 2730 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2731 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2732 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 2733 /* Sanity checks */ 2734 if ((count != sizeof(uint8_t)) && 2735 (count != sizeof(uint16_t)) && 2736 (count != sizeof(uint32_t))) 2737 goto error_out; 2738 if (count == sizeof(uint8_t)) { 2739 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2740 goto error_out; 2741 if (where % sizeof(uint8_t)) 2742 goto error_out; 2743 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2744 pci_write_config_byte(pdev, where, 2745 (uint8_t)value); 2746 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2747 rc = pci_read_config_byte(pdev, where, &u8val); 2748 if (!rc) { 2749 u8val |= (uint8_t)value; 2750 pci_write_config_byte(pdev, where, 2751 u8val); 2752 } 2753 } 2754 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2755 rc = pci_read_config_byte(pdev, where, &u8val); 2756 if (!rc) { 2757 u8val &= (uint8_t)(~value); 2758 pci_write_config_byte(pdev, where, 2759 u8val); 2760 } 2761 } 2762 } 2763 if (count == sizeof(uint16_t)) { 2764 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2765 goto error_out; 2766 if (where % sizeof(uint16_t)) 2767 goto error_out; 2768 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2769 pci_write_config_word(pdev, where, 2770 (uint16_t)value); 2771 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2772 rc = pci_read_config_word(pdev, where, &u16val); 2773 if (!rc) { 2774 u16val |= (uint16_t)value; 2775 pci_write_config_word(pdev, where, 2776 u16val); 2777 } 2778 } 2779 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2780 rc = pci_read_config_word(pdev, where, &u16val); 2781 if (!rc) { 2782 u16val &= (uint16_t)(~value); 2783 pci_write_config_word(pdev, where, 2784 u16val); 2785 } 2786 } 2787 } 2788 if (count == sizeof(uint32_t)) { 2789 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2790 goto error_out; 2791 if (where % sizeof(uint32_t)) 2792 goto error_out; 2793 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2794 pci_write_config_dword(pdev, where, value); 2795 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2796 rc = pci_read_config_dword(pdev, where, 2797 &u32val); 2798 if (!rc) { 2799 u32val |= value; 2800 pci_write_config_dword(pdev, where, 2801 u32val); 2802 } 2803 } 2804 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2805 rc = pci_read_config_dword(pdev, where, 2806 &u32val); 2807 if (!rc) { 2808 u32val &= ~value; 2809 pci_write_config_dword(pdev, where, 2810 u32val); 2811 } 2812 } 2813 } 2814 } else 2815 /* All other opecodes are illegal for now */ 2816 goto error_out; 2817 2818 return nbytes; 2819 error_out: 2820 memset(&idiag, 0, sizeof(idiag)); 2821 return -EINVAL; 2822 } 2823 2824 /** 2825 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 2826 * @file: The file pointer to read from. 2827 * @buf: The buffer to copy the data to. 2828 * @nbytes: The number of bytes to read. 2829 * @ppos: The position in the file to start reading from. 2830 * 2831 * Description: 2832 * This routine reads data from the @phba pci bar memory mapped space 2833 * according to the idiag command, and copies to user @buf. 2834 * 2835 * Returns: 2836 * This function returns the amount of data that was read (this could be less 2837 * than @nbytes if the end of the file was reached) or a negative error value. 2838 **/ 2839 static ssize_t 2840 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 2841 loff_t *ppos) 2842 { 2843 struct lpfc_debug *debug = file->private_data; 2844 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2845 int offset_label, offset, offset_run, len = 0, index; 2846 int bar_num, acc_range, bar_size; 2847 char *pbuffer; 2848 void __iomem *mem_mapped_bar; 2849 uint32_t if_type; 2850 struct pci_dev *pdev; 2851 uint32_t u32val; 2852 2853 pdev = phba->pcidev; 2854 if (!pdev) 2855 return 0; 2856 2857 /* This is a user read operation */ 2858 debug->op = LPFC_IDIAG_OP_RD; 2859 2860 if (!debug->buffer) 2861 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 2862 if (!debug->buffer) 2863 return 0; 2864 pbuffer = debug->buffer; 2865 2866 if (*ppos) 2867 return 0; 2868 2869 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 2870 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 2871 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 2872 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 2873 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 2874 } else 2875 return 0; 2876 2877 if (acc_range == 0) 2878 return 0; 2879 2880 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2881 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2882 if (bar_num == IDIAG_BARACC_BAR_0) 2883 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2884 else if (bar_num == IDIAG_BARACC_BAR_1) 2885 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 2886 else if (bar_num == IDIAG_BARACC_BAR_2) 2887 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 2888 else 2889 return 0; 2890 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2891 if (bar_num == IDIAG_BARACC_BAR_0) 2892 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2893 else 2894 return 0; 2895 } else 2896 return 0; 2897 2898 /* Read single PCI bar space register */ 2899 if (acc_range == SINGLE_WORD) { 2900 offset_run = offset; 2901 u32val = readl(mem_mapped_bar + offset_run); 2902 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2903 "%05x: %08x\n", offset_run, u32val); 2904 } else 2905 goto baracc_browse; 2906 2907 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2908 2909 baracc_browse: 2910 2911 /* Browse all PCI bar space registers */ 2912 offset_label = idiag.offset.last_rd; 2913 offset_run = offset_label; 2914 2915 /* Read PCI bar memory mapped space */ 2916 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2917 "%05x: ", offset_label); 2918 index = LPFC_PCI_BAR_RD_SIZE; 2919 while (index > 0) { 2920 u32val = readl(mem_mapped_bar + offset_run); 2921 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2922 "%08x ", u32val); 2923 offset_run += sizeof(uint32_t); 2924 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2925 if (offset_run >= bar_size) { 2926 len += snprintf(pbuffer+len, 2927 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2928 break; 2929 } 2930 } else { 2931 if (offset_run >= offset + 2932 (acc_range * sizeof(uint32_t))) { 2933 len += snprintf(pbuffer+len, 2934 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2935 break; 2936 } 2937 } 2938 index -= sizeof(uint32_t); 2939 if (!index) 2940 len += snprintf(pbuffer+len, 2941 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2942 else if (!(index % (8 * sizeof(uint32_t)))) { 2943 offset_label += (8 * sizeof(uint32_t)); 2944 len += snprintf(pbuffer+len, 2945 LPFC_PCI_BAR_RD_BUF_SIZE-len, 2946 "\n%05x: ", offset_label); 2947 } 2948 } 2949 2950 /* Set up the offset for next portion of pci bar read */ 2951 if (index == 0) { 2952 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 2953 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2954 if (idiag.offset.last_rd >= bar_size) 2955 idiag.offset.last_rd = 0; 2956 } else { 2957 if (offset_run >= offset + 2958 (acc_range * sizeof(uint32_t))) 2959 idiag.offset.last_rd = offset; 2960 } 2961 } else { 2962 if (acc_range == LPFC_PCI_BAR_BROWSE) 2963 idiag.offset.last_rd = 0; 2964 else 2965 idiag.offset.last_rd = offset; 2966 } 2967 2968 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2969 } 2970 2971 /** 2972 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 2973 * @file: The file pointer to read from. 2974 * @buf: The buffer to copy the user data from. 2975 * @nbytes: The number of bytes to get. 2976 * @ppos: The position in the file to start reading from. 2977 * 2978 * This routine get the debugfs idiag command struct from user space and 2979 * then perform the syntax check for PCI bar memory mapped space read or 2980 * write command accordingly. In the case of PCI bar memory mapped space 2981 * read command, it sets up the command in the idiag command struct for 2982 * the debugfs read operation. In the case of PCI bar memorpy mapped space 2983 * write operation, it executes the write operation into the PCI bar memory 2984 * mapped space accordingly. 2985 * 2986 * It returns the @nbytges passing in from debugfs user space when successful. 2987 * In case of error conditions, it returns proper error code back to the user 2988 * space. 2989 */ 2990 static ssize_t 2991 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 2992 size_t nbytes, loff_t *ppos) 2993 { 2994 struct lpfc_debug *debug = file->private_data; 2995 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2996 uint32_t bar_num, bar_size, offset, value, acc_range; 2997 struct pci_dev *pdev; 2998 void __iomem *mem_mapped_bar; 2999 uint32_t if_type; 3000 uint32_t u32val; 3001 int rc; 3002 3003 pdev = phba->pcidev; 3004 if (!pdev) 3005 return -EFAULT; 3006 3007 /* This is a user write operation */ 3008 debug->op = LPFC_IDIAG_OP_WR; 3009 3010 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3011 if (rc < 0) 3012 return rc; 3013 3014 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3015 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3016 3017 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3018 if ((bar_num != IDIAG_BARACC_BAR_0) && 3019 (bar_num != IDIAG_BARACC_BAR_1) && 3020 (bar_num != IDIAG_BARACC_BAR_2)) 3021 goto error_out; 3022 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3023 if (bar_num != IDIAG_BARACC_BAR_0) 3024 goto error_out; 3025 } else 3026 goto error_out; 3027 3028 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3029 if (bar_num == IDIAG_BARACC_BAR_0) { 3030 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3031 LPFC_PCI_IF0_BAR0_SIZE; 3032 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3033 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3034 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3035 LPFC_PCI_IF0_BAR1_SIZE; 3036 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3037 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3038 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3039 LPFC_PCI_IF0_BAR2_SIZE; 3040 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3041 } else 3042 goto error_out; 3043 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3044 if (bar_num == IDIAG_BARACC_BAR_0) { 3045 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3046 LPFC_PCI_IF2_BAR0_SIZE; 3047 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3048 } else 3049 goto error_out; 3050 } else 3051 goto error_out; 3052 3053 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3054 if (offset % sizeof(uint32_t)) 3055 goto error_out; 3056 3057 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3058 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3059 /* Sanity check on PCI config read command line arguments */ 3060 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3061 goto error_out; 3062 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3063 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3064 if (offset > bar_size - sizeof(uint32_t)) 3065 goto error_out; 3066 /* Starting offset to browse */ 3067 idiag.offset.last_rd = offset; 3068 } else if (acc_range > SINGLE_WORD) { 3069 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3070 goto error_out; 3071 /* Starting offset to browse */ 3072 idiag.offset.last_rd = offset; 3073 } else if (acc_range != SINGLE_WORD) 3074 goto error_out; 3075 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3076 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3077 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3078 /* Sanity check on PCI bar write command line arguments */ 3079 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3080 goto error_out; 3081 /* Write command to PCI bar space, read-modify-write */ 3082 acc_range = SINGLE_WORD; 3083 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3084 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3085 writel(value, mem_mapped_bar + offset); 3086 readl(mem_mapped_bar + offset); 3087 } 3088 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3089 u32val = readl(mem_mapped_bar + offset); 3090 u32val |= value; 3091 writel(u32val, mem_mapped_bar + offset); 3092 readl(mem_mapped_bar + offset); 3093 } 3094 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3095 u32val = readl(mem_mapped_bar + offset); 3096 u32val &= ~value; 3097 writel(u32val, mem_mapped_bar + offset); 3098 readl(mem_mapped_bar + offset); 3099 } 3100 } else 3101 /* All other opecodes are illegal for now */ 3102 goto error_out; 3103 3104 return nbytes; 3105 error_out: 3106 memset(&idiag, 0, sizeof(idiag)); 3107 return -EINVAL; 3108 } 3109 3110 static int 3111 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3112 char *pbuffer, int len) 3113 { 3114 if (!qp) 3115 return len; 3116 3117 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3118 "\t\t%s WQ info: ", wqtype); 3119 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3120 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3121 qp->assoc_qid, qp->q_cnt_1, 3122 (unsigned long long)qp->q_cnt_4); 3123 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3124 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3125 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3126 qp->queue_id, qp->entry_count, 3127 qp->entry_size, qp->host_index, 3128 qp->hba_index, qp->entry_repost); 3129 len += snprintf(pbuffer + len, 3130 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3131 return len; 3132 } 3133 3134 static int 3135 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3136 int *len, int max_cnt, int cq_id) 3137 { 3138 struct lpfc_queue *qp; 3139 int qidx; 3140 3141 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3142 qp = phba->sli4_hba.fcp_wq[qidx]; 3143 if (qp->assoc_qid != cq_id) 3144 continue; 3145 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3146 if (*len >= max_cnt) 3147 return 1; 3148 } 3149 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3150 qp = phba->sli4_hba.nvme_wq[qidx]; 3151 if (qp->assoc_qid != cq_id) 3152 continue; 3153 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3154 if (*len >= max_cnt) 3155 return 1; 3156 } 3157 return 0; 3158 } 3159 3160 static int 3161 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3162 char *pbuffer, int len) 3163 { 3164 if (!qp) 3165 return len; 3166 3167 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3168 "\t%s CQ info: ", cqtype); 3169 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3170 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3171 "xabt:x%x wq:x%llx]\n", 3172 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3173 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3174 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3175 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3176 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3177 qp->queue_id, qp->entry_count, 3178 qp->entry_size, qp->host_index, 3179 qp->hba_index, qp->entry_repost); 3180 3181 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3182 3183 return len; 3184 } 3185 3186 static int 3187 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3188 char *rqtype, char *pbuffer, int len) 3189 { 3190 if (!qp || !datqp) 3191 return len; 3192 3193 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3194 "\t\t%s RQ info: ", rqtype); 3195 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3196 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3197 "posted:x%x rcv:x%llx]\n", 3198 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3199 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3200 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3201 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3202 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n", 3203 qp->queue_id, qp->entry_count, qp->entry_size, 3204 qp->host_index, qp->hba_index, qp->entry_repost); 3205 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3206 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3207 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n", 3208 datqp->queue_id, datqp->entry_count, 3209 datqp->entry_size, datqp->host_index, 3210 datqp->hba_index, datqp->entry_repost); 3211 return len; 3212 } 3213 3214 static int 3215 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3216 int *len, int max_cnt, int eqidx, int eq_id) 3217 { 3218 struct lpfc_queue *qp; 3219 int qidx, rc; 3220 3221 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3222 qp = phba->sli4_hba.fcp_cq[qidx]; 3223 if (qp->assoc_qid != eq_id) 3224 continue; 3225 3226 *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len); 3227 3228 /* Reset max counter */ 3229 qp->CQ_max_cqe = 0; 3230 3231 if (*len >= max_cnt) 3232 return 1; 3233 3234 rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len, 3235 max_cnt, qp->queue_id); 3236 if (rc) 3237 return 1; 3238 } 3239 3240 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3241 qp = phba->sli4_hba.nvme_cq[qidx]; 3242 if (qp->assoc_qid != eq_id) 3243 continue; 3244 3245 *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len); 3246 3247 /* Reset max counter */ 3248 qp->CQ_max_cqe = 0; 3249 3250 if (*len >= max_cnt) 3251 return 1; 3252 3253 rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len, 3254 max_cnt, qp->queue_id); 3255 if (rc) 3256 return 1; 3257 } 3258 3259 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3260 /* NVMET CQset */ 3261 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3262 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3263 3264 /* Reset max counter */ 3265 qp->CQ_max_cqe = 0; 3266 3267 if (*len >= max_cnt) 3268 return 1; 3269 3270 /* RQ header */ 3271 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3272 *len = __lpfc_idiag_print_rqpair(qp, 3273 phba->sli4_hba.nvmet_mrq_data[eqidx], 3274 "NVMET MRQ", pbuffer, *len); 3275 3276 if (*len >= max_cnt) 3277 return 1; 3278 } 3279 3280 return 0; 3281 } 3282 3283 static int 3284 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 3285 char *pbuffer, int len) 3286 { 3287 if (!qp) 3288 return len; 3289 3290 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3291 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 3292 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 3293 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 3294 (unsigned long long)qp->q_cnt_4, qp->q_mode); 3295 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3296 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3297 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3298 qp->queue_id, qp->entry_count, qp->entry_size, 3299 qp->host_index, qp->hba_index, qp->entry_repost); 3300 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3301 3302 return len; 3303 } 3304 3305 /** 3306 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 3307 * @file: The file pointer to read from. 3308 * @buf: The buffer to copy the data to. 3309 * @nbytes: The number of bytes to read. 3310 * @ppos: The position in the file to start reading from. 3311 * 3312 * Description: 3313 * This routine reads data from the @phba SLI4 PCI function queue information, 3314 * and copies to user @buf. 3315 * This routine only returns 1 EQs worth of information. It remembers the last 3316 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 3317 * retrieve all EQs allocated for the phba. 3318 * 3319 * Returns: 3320 * This function returns the amount of data that was read (this could be less 3321 * than @nbytes if the end of the file was reached) or a negative error value. 3322 **/ 3323 static ssize_t 3324 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 3325 loff_t *ppos) 3326 { 3327 struct lpfc_debug *debug = file->private_data; 3328 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3329 char *pbuffer; 3330 int max_cnt, rc, x, len = 0; 3331 struct lpfc_queue *qp = NULL; 3332 3333 if (!debug->buffer) 3334 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 3335 if (!debug->buffer) 3336 return 0; 3337 pbuffer = debug->buffer; 3338 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 3339 3340 if (*ppos) 3341 return 0; 3342 3343 spin_lock_irq(&phba->hbalock); 3344 3345 /* Fast-path event queue */ 3346 if (phba->sli4_hba.hba_eq && phba->io_channel_irqs) { 3347 3348 x = phba->lpfc_idiag_last_eq; 3349 if (phba->cfg_fof && (x >= phba->io_channel_irqs)) { 3350 phba->lpfc_idiag_last_eq = 0; 3351 goto fof; 3352 } 3353 phba->lpfc_idiag_last_eq++; 3354 if (phba->lpfc_idiag_last_eq >= phba->io_channel_irqs) 3355 if (phba->cfg_fof == 0) 3356 phba->lpfc_idiag_last_eq = 0; 3357 3358 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3359 "EQ %d out of %d HBA EQs\n", 3360 x, phba->io_channel_irqs); 3361 3362 /* Fast-path EQ */ 3363 qp = phba->sli4_hba.hba_eq[x]; 3364 if (!qp) 3365 goto out; 3366 3367 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 3368 3369 /* Reset max counter */ 3370 qp->EQ_max_eqe = 0; 3371 3372 if (len >= max_cnt) 3373 goto too_big; 3374 3375 /* will dump both fcp and nvme cqs/wqs for the eq */ 3376 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 3377 max_cnt, x, qp->queue_id); 3378 if (rc) 3379 goto too_big; 3380 3381 /* Only EQ 0 has slow path CQs configured */ 3382 if (x) 3383 goto out; 3384 3385 /* Slow-path mailbox CQ */ 3386 qp = phba->sli4_hba.mbx_cq; 3387 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 3388 if (len >= max_cnt) 3389 goto too_big; 3390 3391 /* Slow-path MBOX MQ */ 3392 qp = phba->sli4_hba.mbx_wq; 3393 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 3394 if (len >= max_cnt) 3395 goto too_big; 3396 3397 /* Slow-path ELS response CQ */ 3398 qp = phba->sli4_hba.els_cq; 3399 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 3400 /* Reset max counter */ 3401 if (qp) 3402 qp->CQ_max_cqe = 0; 3403 if (len >= max_cnt) 3404 goto too_big; 3405 3406 /* Slow-path ELS WQ */ 3407 qp = phba->sli4_hba.els_wq; 3408 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 3409 if (len >= max_cnt) 3410 goto too_big; 3411 3412 qp = phba->sli4_hba.hdr_rq; 3413 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 3414 "ELS RQpair", pbuffer, len); 3415 if (len >= max_cnt) 3416 goto too_big; 3417 3418 /* Slow-path NVME LS response CQ */ 3419 qp = phba->sli4_hba.nvmels_cq; 3420 len = __lpfc_idiag_print_cq(qp, "NVME LS", 3421 pbuffer, len); 3422 /* Reset max counter */ 3423 if (qp) 3424 qp->CQ_max_cqe = 0; 3425 if (len >= max_cnt) 3426 goto too_big; 3427 3428 /* Slow-path NVME LS WQ */ 3429 qp = phba->sli4_hba.nvmels_wq; 3430 len = __lpfc_idiag_print_wq(qp, "NVME LS", 3431 pbuffer, len); 3432 if (len >= max_cnt) 3433 goto too_big; 3434 3435 goto out; 3436 } 3437 3438 fof: 3439 if (phba->cfg_fof) { 3440 /* FOF EQ */ 3441 qp = phba->sli4_hba.fof_eq; 3442 len = __lpfc_idiag_print_eq(qp, "FOF", pbuffer, len); 3443 3444 /* Reset max counter */ 3445 if (qp) 3446 qp->EQ_max_eqe = 0; 3447 3448 if (len >= max_cnt) 3449 goto too_big; 3450 3451 /* OAS CQ */ 3452 qp = phba->sli4_hba.oas_cq; 3453 len = __lpfc_idiag_print_cq(qp, "OAS", pbuffer, len); 3454 /* Reset max counter */ 3455 if (qp) 3456 qp->CQ_max_cqe = 0; 3457 if (len >= max_cnt) 3458 goto too_big; 3459 3460 /* OAS WQ */ 3461 qp = phba->sli4_hba.oas_wq; 3462 len = __lpfc_idiag_print_wq(qp, "OAS", pbuffer, len); 3463 if (len >= max_cnt) 3464 goto too_big; 3465 } 3466 3467 spin_unlock_irq(&phba->hbalock); 3468 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3469 3470 too_big: 3471 len += snprintf(pbuffer + len, 3472 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 3473 out: 3474 spin_unlock_irq(&phba->hbalock); 3475 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3476 } 3477 3478 /** 3479 * lpfc_idiag_que_param_check - queue access command parameter sanity check 3480 * @q: The pointer to queue structure. 3481 * @index: The index into a queue entry. 3482 * @count: The number of queue entries to access. 3483 * 3484 * Description: 3485 * The routine performs sanity check on device queue access method commands. 3486 * 3487 * Returns: 3488 * This function returns -EINVAL when fails the sanity check, otherwise, it 3489 * returns 0. 3490 **/ 3491 static int 3492 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 3493 { 3494 /* Only support single entry read or browsing */ 3495 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 3496 return -EINVAL; 3497 if (index > q->entry_count - 1) 3498 return -EINVAL; 3499 return 0; 3500 } 3501 3502 /** 3503 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 3504 * @pbuffer: The pointer to buffer to copy the read data into. 3505 * @pque: The pointer to the queue to be read. 3506 * @index: The index into the queue entry. 3507 * 3508 * Description: 3509 * This routine reads out a single entry from the given queue's index location 3510 * and copies it into the buffer provided. 3511 * 3512 * Returns: 3513 * This function returns 0 when it fails, otherwise, it returns the length of 3514 * the data read into the buffer provided. 3515 **/ 3516 static int 3517 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 3518 uint32_t index) 3519 { 3520 int offset, esize; 3521 uint32_t *pentry; 3522 3523 if (!pbuffer || !pque) 3524 return 0; 3525 3526 esize = pque->entry_size; 3527 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3528 "QE-INDEX[%04d]:\n", index); 3529 3530 offset = 0; 3531 pentry = pque->qe[index].address; 3532 while (esize > 0) { 3533 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3534 "%08x ", *pentry); 3535 pentry++; 3536 offset += sizeof(uint32_t); 3537 esize -= sizeof(uint32_t); 3538 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 3539 len += snprintf(pbuffer+len, 3540 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3541 } 3542 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3543 3544 return len; 3545 } 3546 3547 /** 3548 * lpfc_idiag_queacc_read - idiag debugfs read port queue 3549 * @file: The file pointer to read from. 3550 * @buf: The buffer to copy the data to. 3551 * @nbytes: The number of bytes to read. 3552 * @ppos: The position in the file to start reading from. 3553 * 3554 * Description: 3555 * This routine reads data from the @phba device queue memory according to the 3556 * idiag command, and copies to user @buf. Depending on the queue dump read 3557 * command setup, it does either a single queue entry read or browing through 3558 * all entries of the queue. 3559 * 3560 * Returns: 3561 * This function returns the amount of data that was read (this could be less 3562 * than @nbytes if the end of the file was reached) or a negative error value. 3563 **/ 3564 static ssize_t 3565 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 3566 loff_t *ppos) 3567 { 3568 struct lpfc_debug *debug = file->private_data; 3569 uint32_t last_index, index, count; 3570 struct lpfc_queue *pque = NULL; 3571 char *pbuffer; 3572 int len = 0; 3573 3574 /* This is a user read operation */ 3575 debug->op = LPFC_IDIAG_OP_RD; 3576 3577 if (!debug->buffer) 3578 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 3579 if (!debug->buffer) 3580 return 0; 3581 pbuffer = debug->buffer; 3582 3583 if (*ppos) 3584 return 0; 3585 3586 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3587 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3588 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3589 pque = (struct lpfc_queue *)idiag.ptr_private; 3590 } else 3591 return 0; 3592 3593 /* Browse the queue starting from index */ 3594 if (count == LPFC_QUE_ACC_BROWSE) 3595 goto que_browse; 3596 3597 /* Read a single entry from the queue */ 3598 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3599 3600 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3601 3602 que_browse: 3603 3604 /* Browse all entries from the queue */ 3605 last_index = idiag.offset.last_rd; 3606 index = last_index; 3607 3608 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 3609 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3610 index++; 3611 if (index > pque->entry_count - 1) 3612 break; 3613 } 3614 3615 /* Set up the offset for next portion of pci cfg read */ 3616 if (index > pque->entry_count - 1) 3617 index = 0; 3618 idiag.offset.last_rd = index; 3619 3620 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3621 } 3622 3623 /** 3624 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 3625 * @file: The file pointer to read from. 3626 * @buf: The buffer to copy the user data from. 3627 * @nbytes: The number of bytes to get. 3628 * @ppos: The position in the file to start reading from. 3629 * 3630 * This routine get the debugfs idiag command struct from user space and then 3631 * perform the syntax check for port queue read (dump) or write (set) command 3632 * accordingly. In the case of port queue read command, it sets up the command 3633 * in the idiag command struct for the following debugfs read operation. In 3634 * the case of port queue write operation, it executes the write operation 3635 * into the port queue entry accordingly. 3636 * 3637 * It returns the @nbytges passing in from debugfs user space when successful. 3638 * In case of error conditions, it returns proper error code back to the user 3639 * space. 3640 **/ 3641 static ssize_t 3642 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 3643 size_t nbytes, loff_t *ppos) 3644 { 3645 struct lpfc_debug *debug = file->private_data; 3646 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3647 uint32_t qidx, quetp, queid, index, count, offset, value; 3648 uint32_t *pentry; 3649 struct lpfc_queue *pque, *qp; 3650 int rc; 3651 3652 /* This is a user write operation */ 3653 debug->op = LPFC_IDIAG_OP_WR; 3654 3655 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3656 if (rc < 0) 3657 return rc; 3658 3659 /* Get and sanity check on command feilds */ 3660 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 3661 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 3662 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3663 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3664 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 3665 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 3666 3667 /* Sanity check on command line arguments */ 3668 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3669 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3670 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3671 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 3672 goto error_out; 3673 if (count != 1) 3674 goto error_out; 3675 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3676 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 3677 goto error_out; 3678 } else 3679 goto error_out; 3680 3681 switch (quetp) { 3682 case LPFC_IDIAG_EQ: 3683 /* HBA event queue */ 3684 if (phba->sli4_hba.hba_eq) { 3685 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) { 3686 qp = phba->sli4_hba.hba_eq[qidx]; 3687 if (qp && qp->queue_id == queid) { 3688 /* Sanity check */ 3689 rc = lpfc_idiag_que_param_check(qp, 3690 index, count); 3691 if (rc) 3692 goto error_out; 3693 idiag.ptr_private = qp; 3694 goto pass_check; 3695 } 3696 } 3697 } 3698 goto error_out; 3699 break; 3700 case LPFC_IDIAG_CQ: 3701 /* MBX complete queue */ 3702 if (phba->sli4_hba.mbx_cq && 3703 phba->sli4_hba.mbx_cq->queue_id == queid) { 3704 /* Sanity check */ 3705 rc = lpfc_idiag_que_param_check( 3706 phba->sli4_hba.mbx_cq, index, count); 3707 if (rc) 3708 goto error_out; 3709 idiag.ptr_private = phba->sli4_hba.mbx_cq; 3710 goto pass_check; 3711 } 3712 /* ELS complete queue */ 3713 if (phba->sli4_hba.els_cq && 3714 phba->sli4_hba.els_cq->queue_id == queid) { 3715 /* Sanity check */ 3716 rc = lpfc_idiag_que_param_check( 3717 phba->sli4_hba.els_cq, index, count); 3718 if (rc) 3719 goto error_out; 3720 idiag.ptr_private = phba->sli4_hba.els_cq; 3721 goto pass_check; 3722 } 3723 /* NVME LS complete queue */ 3724 if (phba->sli4_hba.nvmels_cq && 3725 phba->sli4_hba.nvmels_cq->queue_id == queid) { 3726 /* Sanity check */ 3727 rc = lpfc_idiag_que_param_check( 3728 phba->sli4_hba.nvmels_cq, index, count); 3729 if (rc) 3730 goto error_out; 3731 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 3732 goto pass_check; 3733 } 3734 /* FCP complete queue */ 3735 if (phba->sli4_hba.fcp_cq) { 3736 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3737 qidx++) { 3738 qp = phba->sli4_hba.fcp_cq[qidx]; 3739 if (qp && qp->queue_id == queid) { 3740 /* Sanity check */ 3741 rc = lpfc_idiag_que_param_check( 3742 qp, index, count); 3743 if (rc) 3744 goto error_out; 3745 idiag.ptr_private = qp; 3746 goto pass_check; 3747 } 3748 } 3749 } 3750 /* NVME complete queue */ 3751 if (phba->sli4_hba.nvme_cq) { 3752 qidx = 0; 3753 do { 3754 if (phba->sli4_hba.nvme_cq[qidx] && 3755 phba->sli4_hba.nvme_cq[qidx]->queue_id == 3756 queid) { 3757 /* Sanity check */ 3758 rc = lpfc_idiag_que_param_check( 3759 phba->sli4_hba.nvme_cq[qidx], 3760 index, count); 3761 if (rc) 3762 goto error_out; 3763 idiag.ptr_private = 3764 phba->sli4_hba.nvme_cq[qidx]; 3765 goto pass_check; 3766 } 3767 } while (++qidx < phba->cfg_nvme_io_channel); 3768 } 3769 goto error_out; 3770 break; 3771 case LPFC_IDIAG_MQ: 3772 /* MBX work queue */ 3773 if (phba->sli4_hba.mbx_wq && 3774 phba->sli4_hba.mbx_wq->queue_id == queid) { 3775 /* Sanity check */ 3776 rc = lpfc_idiag_que_param_check( 3777 phba->sli4_hba.mbx_wq, index, count); 3778 if (rc) 3779 goto error_out; 3780 idiag.ptr_private = phba->sli4_hba.mbx_wq; 3781 goto pass_check; 3782 } 3783 goto error_out; 3784 break; 3785 case LPFC_IDIAG_WQ: 3786 /* ELS work queue */ 3787 if (phba->sli4_hba.els_wq && 3788 phba->sli4_hba.els_wq->queue_id == queid) { 3789 /* Sanity check */ 3790 rc = lpfc_idiag_que_param_check( 3791 phba->sli4_hba.els_wq, index, count); 3792 if (rc) 3793 goto error_out; 3794 idiag.ptr_private = phba->sli4_hba.els_wq; 3795 goto pass_check; 3796 } 3797 /* NVME LS work queue */ 3798 if (phba->sli4_hba.nvmels_wq && 3799 phba->sli4_hba.nvmels_wq->queue_id == queid) { 3800 /* Sanity check */ 3801 rc = lpfc_idiag_que_param_check( 3802 phba->sli4_hba.nvmels_wq, index, count); 3803 if (rc) 3804 goto error_out; 3805 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 3806 goto pass_check; 3807 } 3808 /* FCP work queue */ 3809 if (phba->sli4_hba.fcp_wq) { 3810 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3811 qidx++) { 3812 qp = phba->sli4_hba.fcp_wq[qidx]; 3813 if (qp && qp->queue_id == queid) { 3814 /* Sanity check */ 3815 rc = lpfc_idiag_que_param_check( 3816 qp, index, count); 3817 if (rc) 3818 goto error_out; 3819 idiag.ptr_private = qp; 3820 goto pass_check; 3821 } 3822 } 3823 } 3824 /* NVME work queue */ 3825 if (phba->sli4_hba.nvme_wq) { 3826 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3827 qidx++) { 3828 qp = phba->sli4_hba.nvme_wq[qidx]; 3829 if (qp && qp->queue_id == queid) { 3830 /* Sanity check */ 3831 rc = lpfc_idiag_que_param_check( 3832 qp, index, count); 3833 if (rc) 3834 goto error_out; 3835 idiag.ptr_private = qp; 3836 goto pass_check; 3837 } 3838 } 3839 } 3840 3841 /* NVME work queues */ 3842 if (phba->sli4_hba.nvme_wq) { 3843 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3844 qidx++) { 3845 if (!phba->sli4_hba.nvme_wq[qidx]) 3846 continue; 3847 if (phba->sli4_hba.nvme_wq[qidx]->queue_id == 3848 queid) { 3849 /* Sanity check */ 3850 rc = lpfc_idiag_que_param_check( 3851 phba->sli4_hba.nvme_wq[qidx], 3852 index, count); 3853 if (rc) 3854 goto error_out; 3855 idiag.ptr_private = 3856 phba->sli4_hba.nvme_wq[qidx]; 3857 goto pass_check; 3858 } 3859 } 3860 } 3861 goto error_out; 3862 break; 3863 case LPFC_IDIAG_RQ: 3864 /* HDR queue */ 3865 if (phba->sli4_hba.hdr_rq && 3866 phba->sli4_hba.hdr_rq->queue_id == queid) { 3867 /* Sanity check */ 3868 rc = lpfc_idiag_que_param_check( 3869 phba->sli4_hba.hdr_rq, index, count); 3870 if (rc) 3871 goto error_out; 3872 idiag.ptr_private = phba->sli4_hba.hdr_rq; 3873 goto pass_check; 3874 } 3875 /* DAT queue */ 3876 if (phba->sli4_hba.dat_rq && 3877 phba->sli4_hba.dat_rq->queue_id == queid) { 3878 /* Sanity check */ 3879 rc = lpfc_idiag_que_param_check( 3880 phba->sli4_hba.dat_rq, index, count); 3881 if (rc) 3882 goto error_out; 3883 idiag.ptr_private = phba->sli4_hba.dat_rq; 3884 goto pass_check; 3885 } 3886 goto error_out; 3887 break; 3888 default: 3889 goto error_out; 3890 break; 3891 } 3892 3893 pass_check: 3894 3895 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3896 if (count == LPFC_QUE_ACC_BROWSE) 3897 idiag.offset.last_rd = index; 3898 } 3899 3900 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3901 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3902 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3903 /* Additional sanity checks on write operation */ 3904 pque = (struct lpfc_queue *)idiag.ptr_private; 3905 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 3906 goto error_out; 3907 pentry = pque->qe[index].address; 3908 pentry += offset; 3909 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 3910 *pentry = value; 3911 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 3912 *pentry |= value; 3913 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 3914 *pentry &= ~value; 3915 } 3916 return nbytes; 3917 3918 error_out: 3919 /* Clean out command structure on command error out */ 3920 memset(&idiag, 0, sizeof(idiag)); 3921 return -EINVAL; 3922 } 3923 3924 /** 3925 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 3926 * @phba: The pointer to hba structure. 3927 * @pbuffer: The pointer to the buffer to copy the data to. 3928 * @len: The lenght of bytes to copied. 3929 * @drbregid: The id to doorbell registers. 3930 * 3931 * Description: 3932 * This routine reads a doorbell register and copies its content to the 3933 * user buffer pointed to by @pbuffer. 3934 * 3935 * Returns: 3936 * This function returns the amount of data that was copied into @pbuffer. 3937 **/ 3938 static int 3939 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 3940 int len, uint32_t drbregid) 3941 { 3942 3943 if (!pbuffer) 3944 return 0; 3945 3946 switch (drbregid) { 3947 case LPFC_DRB_EQCQ: 3948 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3949 "EQCQ-DRB-REG: 0x%08x\n", 3950 readl(phba->sli4_hba.EQCQDBregaddr)); 3951 break; 3952 case LPFC_DRB_MQ: 3953 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3954 "MQ-DRB-REG: 0x%08x\n", 3955 readl(phba->sli4_hba.MQDBregaddr)); 3956 break; 3957 case LPFC_DRB_WQ: 3958 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3959 "WQ-DRB-REG: 0x%08x\n", 3960 readl(phba->sli4_hba.WQDBregaddr)); 3961 break; 3962 case LPFC_DRB_RQ: 3963 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3964 "RQ-DRB-REG: 0x%08x\n", 3965 readl(phba->sli4_hba.RQDBregaddr)); 3966 break; 3967 default: 3968 break; 3969 } 3970 3971 return len; 3972 } 3973 3974 /** 3975 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 3976 * @file: The file pointer to read from. 3977 * @buf: The buffer to copy the data to. 3978 * @nbytes: The number of bytes to read. 3979 * @ppos: The position in the file to start reading from. 3980 * 3981 * Description: 3982 * This routine reads data from the @phba device doorbell register according 3983 * to the idiag command, and copies to user @buf. Depending on the doorbell 3984 * register read command setup, it does either a single doorbell register 3985 * read or dump all doorbell registers. 3986 * 3987 * Returns: 3988 * This function returns the amount of data that was read (this could be less 3989 * than @nbytes if the end of the file was reached) or a negative error value. 3990 **/ 3991 static ssize_t 3992 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 3993 loff_t *ppos) 3994 { 3995 struct lpfc_debug *debug = file->private_data; 3996 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3997 uint32_t drb_reg_id, i; 3998 char *pbuffer; 3999 int len = 0; 4000 4001 /* This is a user read operation */ 4002 debug->op = LPFC_IDIAG_OP_RD; 4003 4004 if (!debug->buffer) 4005 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4006 if (!debug->buffer) 4007 return 0; 4008 pbuffer = debug->buffer; 4009 4010 if (*ppos) 4011 return 0; 4012 4013 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4014 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4015 else 4016 return 0; 4017 4018 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4019 for (i = 1; i <= LPFC_DRB_MAX; i++) 4020 len = lpfc_idiag_drbacc_read_reg(phba, 4021 pbuffer, len, i); 4022 else 4023 len = lpfc_idiag_drbacc_read_reg(phba, 4024 pbuffer, len, drb_reg_id); 4025 4026 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4027 } 4028 4029 /** 4030 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4031 * @file: The file pointer to read from. 4032 * @buf: The buffer to copy the user data from. 4033 * @nbytes: The number of bytes to get. 4034 * @ppos: The position in the file to start reading from. 4035 * 4036 * This routine get the debugfs idiag command struct from user space and then 4037 * perform the syntax check for port doorbell register read (dump) or write 4038 * (set) command accordingly. In the case of port queue read command, it sets 4039 * up the command in the idiag command struct for the following debugfs read 4040 * operation. In the case of port doorbell register write operation, it 4041 * executes the write operation into the port doorbell register accordingly. 4042 * 4043 * It returns the @nbytges passing in from debugfs user space when successful. 4044 * In case of error conditions, it returns proper error code back to the user 4045 * space. 4046 **/ 4047 static ssize_t 4048 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4049 size_t nbytes, loff_t *ppos) 4050 { 4051 struct lpfc_debug *debug = file->private_data; 4052 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4053 uint32_t drb_reg_id, value, reg_val = 0; 4054 void __iomem *drb_reg; 4055 int rc; 4056 4057 /* This is a user write operation */ 4058 debug->op = LPFC_IDIAG_OP_WR; 4059 4060 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4061 if (rc < 0) 4062 return rc; 4063 4064 /* Sanity check on command line arguments */ 4065 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4066 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4067 4068 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4069 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4070 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4071 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4072 goto error_out; 4073 if (drb_reg_id > LPFC_DRB_MAX) 4074 goto error_out; 4075 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4076 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4077 goto error_out; 4078 if ((drb_reg_id > LPFC_DRB_MAX) && 4079 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4080 goto error_out; 4081 } else 4082 goto error_out; 4083 4084 /* Perform the write access operation */ 4085 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4086 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4087 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4088 switch (drb_reg_id) { 4089 case LPFC_DRB_EQCQ: 4090 drb_reg = phba->sli4_hba.EQCQDBregaddr; 4091 break; 4092 case LPFC_DRB_MQ: 4093 drb_reg = phba->sli4_hba.MQDBregaddr; 4094 break; 4095 case LPFC_DRB_WQ: 4096 drb_reg = phba->sli4_hba.WQDBregaddr; 4097 break; 4098 case LPFC_DRB_RQ: 4099 drb_reg = phba->sli4_hba.RQDBregaddr; 4100 break; 4101 default: 4102 goto error_out; 4103 } 4104 4105 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4106 reg_val = value; 4107 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4108 reg_val = readl(drb_reg); 4109 reg_val |= value; 4110 } 4111 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4112 reg_val = readl(drb_reg); 4113 reg_val &= ~value; 4114 } 4115 writel(reg_val, drb_reg); 4116 readl(drb_reg); /* flush */ 4117 } 4118 return nbytes; 4119 4120 error_out: 4121 /* Clean out command structure on command error out */ 4122 memset(&idiag, 0, sizeof(idiag)); 4123 return -EINVAL; 4124 } 4125 4126 /** 4127 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4128 * @phba: The pointer to hba structure. 4129 * @pbuffer: The pointer to the buffer to copy the data to. 4130 * @len: The lenght of bytes to copied. 4131 * @drbregid: The id to doorbell registers. 4132 * 4133 * Description: 4134 * This routine reads a control register and copies its content to the 4135 * user buffer pointed to by @pbuffer. 4136 * 4137 * Returns: 4138 * This function returns the amount of data that was copied into @pbuffer. 4139 **/ 4140 static int 4141 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4142 int len, uint32_t ctlregid) 4143 { 4144 4145 if (!pbuffer) 4146 return 0; 4147 4148 switch (ctlregid) { 4149 case LPFC_CTL_PORT_SEM: 4150 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4151 "Port SemReg: 0x%08x\n", 4152 readl(phba->sli4_hba.conf_regs_memmap_p + 4153 LPFC_CTL_PORT_SEM_OFFSET)); 4154 break; 4155 case LPFC_CTL_PORT_STA: 4156 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4157 "Port StaReg: 0x%08x\n", 4158 readl(phba->sli4_hba.conf_regs_memmap_p + 4159 LPFC_CTL_PORT_STA_OFFSET)); 4160 break; 4161 case LPFC_CTL_PORT_CTL: 4162 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4163 "Port CtlReg: 0x%08x\n", 4164 readl(phba->sli4_hba.conf_regs_memmap_p + 4165 LPFC_CTL_PORT_CTL_OFFSET)); 4166 break; 4167 case LPFC_CTL_PORT_ER1: 4168 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4169 "Port Er1Reg: 0x%08x\n", 4170 readl(phba->sli4_hba.conf_regs_memmap_p + 4171 LPFC_CTL_PORT_ER1_OFFSET)); 4172 break; 4173 case LPFC_CTL_PORT_ER2: 4174 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4175 "Port Er2Reg: 0x%08x\n", 4176 readl(phba->sli4_hba.conf_regs_memmap_p + 4177 LPFC_CTL_PORT_ER2_OFFSET)); 4178 break; 4179 case LPFC_CTL_PDEV_CTL: 4180 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4181 "PDev CtlReg: 0x%08x\n", 4182 readl(phba->sli4_hba.conf_regs_memmap_p + 4183 LPFC_CTL_PDEV_CTL_OFFSET)); 4184 break; 4185 default: 4186 break; 4187 } 4188 return len; 4189 } 4190 4191 /** 4192 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4193 * @file: The file pointer to read from. 4194 * @buf: The buffer to copy the data to. 4195 * @nbytes: The number of bytes to read. 4196 * @ppos: The position in the file to start reading from. 4197 * 4198 * Description: 4199 * This routine reads data from the @phba port and device registers according 4200 * to the idiag command, and copies to user @buf. 4201 * 4202 * Returns: 4203 * This function returns the amount of data that was read (this could be less 4204 * than @nbytes if the end of the file was reached) or a negative error value. 4205 **/ 4206 static ssize_t 4207 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4208 loff_t *ppos) 4209 { 4210 struct lpfc_debug *debug = file->private_data; 4211 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4212 uint32_t ctl_reg_id, i; 4213 char *pbuffer; 4214 int len = 0; 4215 4216 /* This is a user read operation */ 4217 debug->op = LPFC_IDIAG_OP_RD; 4218 4219 if (!debug->buffer) 4220 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4221 if (!debug->buffer) 4222 return 0; 4223 pbuffer = debug->buffer; 4224 4225 if (*ppos) 4226 return 0; 4227 4228 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4229 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4230 else 4231 return 0; 4232 4233 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4234 for (i = 1; i <= LPFC_CTL_MAX; i++) 4235 len = lpfc_idiag_ctlacc_read_reg(phba, 4236 pbuffer, len, i); 4237 else 4238 len = lpfc_idiag_ctlacc_read_reg(phba, 4239 pbuffer, len, ctl_reg_id); 4240 4241 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4242 } 4243 4244 /** 4245 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4246 * @file: The file pointer to read from. 4247 * @buf: The buffer to copy the user data from. 4248 * @nbytes: The number of bytes to get. 4249 * @ppos: The position in the file to start reading from. 4250 * 4251 * This routine get the debugfs idiag command struct from user space and then 4252 * perform the syntax check for port and device control register read (dump) 4253 * or write (set) command accordingly. 4254 * 4255 * It returns the @nbytges passing in from debugfs user space when successful. 4256 * In case of error conditions, it returns proper error code back to the user 4257 * space. 4258 **/ 4259 static ssize_t 4260 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4261 size_t nbytes, loff_t *ppos) 4262 { 4263 struct lpfc_debug *debug = file->private_data; 4264 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4265 uint32_t ctl_reg_id, value, reg_val = 0; 4266 void __iomem *ctl_reg; 4267 int rc; 4268 4269 /* This is a user write operation */ 4270 debug->op = LPFC_IDIAG_OP_WR; 4271 4272 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4273 if (rc < 0) 4274 return rc; 4275 4276 /* Sanity check on command line arguments */ 4277 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4278 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4279 4280 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4281 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4282 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4283 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4284 goto error_out; 4285 if (ctl_reg_id > LPFC_CTL_MAX) 4286 goto error_out; 4287 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4288 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4289 goto error_out; 4290 if ((ctl_reg_id > LPFC_CTL_MAX) && 4291 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4292 goto error_out; 4293 } else 4294 goto error_out; 4295 4296 /* Perform the write access operation */ 4297 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4298 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4299 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4300 switch (ctl_reg_id) { 4301 case LPFC_CTL_PORT_SEM: 4302 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4303 LPFC_CTL_PORT_SEM_OFFSET; 4304 break; 4305 case LPFC_CTL_PORT_STA: 4306 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4307 LPFC_CTL_PORT_STA_OFFSET; 4308 break; 4309 case LPFC_CTL_PORT_CTL: 4310 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4311 LPFC_CTL_PORT_CTL_OFFSET; 4312 break; 4313 case LPFC_CTL_PORT_ER1: 4314 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4315 LPFC_CTL_PORT_ER1_OFFSET; 4316 break; 4317 case LPFC_CTL_PORT_ER2: 4318 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4319 LPFC_CTL_PORT_ER2_OFFSET; 4320 break; 4321 case LPFC_CTL_PDEV_CTL: 4322 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4323 LPFC_CTL_PDEV_CTL_OFFSET; 4324 break; 4325 default: 4326 goto error_out; 4327 } 4328 4329 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4330 reg_val = value; 4331 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4332 reg_val = readl(ctl_reg); 4333 reg_val |= value; 4334 } 4335 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4336 reg_val = readl(ctl_reg); 4337 reg_val &= ~value; 4338 } 4339 writel(reg_val, ctl_reg); 4340 readl(ctl_reg); /* flush */ 4341 } 4342 return nbytes; 4343 4344 error_out: 4345 /* Clean out command structure on command error out */ 4346 memset(&idiag, 0, sizeof(idiag)); 4347 return -EINVAL; 4348 } 4349 4350 /** 4351 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4352 * @phba: Pointer to HBA context object. 4353 * @pbuffer: Pointer to data buffer. 4354 * 4355 * Description: 4356 * This routine gets the driver mailbox access debugfs setup information. 4357 * 4358 * Returns: 4359 * This function returns the amount of data that was read (this could be less 4360 * than @nbytes if the end of the file was reached) or a negative error value. 4361 **/ 4362 static int 4363 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 4364 { 4365 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4366 int len = 0; 4367 4368 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4369 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4370 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4371 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4372 4373 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4374 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 4375 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4376 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 4377 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4378 "mbx_word_cnt: %04d\n", mbx_word_cnt); 4379 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4380 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 4381 4382 return len; 4383 } 4384 4385 /** 4386 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 4387 * @file: The file pointer to read from. 4388 * @buf: The buffer to copy the data to. 4389 * @nbytes: The number of bytes to read. 4390 * @ppos: The position in the file to start reading from. 4391 * 4392 * Description: 4393 * This routine reads data from the @phba driver mailbox access debugfs setup 4394 * information. 4395 * 4396 * Returns: 4397 * This function returns the amount of data that was read (this could be less 4398 * than @nbytes if the end of the file was reached) or a negative error value. 4399 **/ 4400 static ssize_t 4401 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 4402 loff_t *ppos) 4403 { 4404 struct lpfc_debug *debug = file->private_data; 4405 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4406 char *pbuffer; 4407 int len = 0; 4408 4409 /* This is a user read operation */ 4410 debug->op = LPFC_IDIAG_OP_RD; 4411 4412 if (!debug->buffer) 4413 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 4414 if (!debug->buffer) 4415 return 0; 4416 pbuffer = debug->buffer; 4417 4418 if (*ppos) 4419 return 0; 4420 4421 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 4422 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 4423 return 0; 4424 4425 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 4426 4427 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4428 } 4429 4430 /** 4431 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 4432 * @file: The file pointer to read from. 4433 * @buf: The buffer to copy the user data from. 4434 * @nbytes: The number of bytes to get. 4435 * @ppos: The position in the file to start reading from. 4436 * 4437 * This routine get the debugfs idiag command struct from user space and then 4438 * perform the syntax check for driver mailbox command (dump) and sets up the 4439 * necessary states in the idiag command struct accordingly. 4440 * 4441 * It returns the @nbytges passing in from debugfs user space when successful. 4442 * In case of error conditions, it returns proper error code back to the user 4443 * space. 4444 **/ 4445 static ssize_t 4446 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 4447 size_t nbytes, loff_t *ppos) 4448 { 4449 struct lpfc_debug *debug = file->private_data; 4450 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4451 int rc; 4452 4453 /* This is a user write operation */ 4454 debug->op = LPFC_IDIAG_OP_WR; 4455 4456 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4457 if (rc < 0) 4458 return rc; 4459 4460 /* Sanity check on command line arguments */ 4461 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4462 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4463 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4464 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4465 4466 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 4467 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 4468 goto error_out; 4469 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 4470 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4471 goto error_out; 4472 if (mbx_word_cnt > sizeof(MAILBOX_t)) 4473 goto error_out; 4474 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 4475 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 4476 goto error_out; 4477 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 4478 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4479 goto error_out; 4480 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 4481 goto error_out; 4482 if (mbx_mbox_cmd != 0x9b) 4483 goto error_out; 4484 } else 4485 goto error_out; 4486 4487 if (mbx_word_cnt == 0) 4488 goto error_out; 4489 if (rc != LPFC_MBX_DMP_ARG) 4490 goto error_out; 4491 if (mbx_mbox_cmd & ~0xff) 4492 goto error_out; 4493 4494 /* condition for stop mailbox dump */ 4495 if (mbx_dump_cnt == 0) 4496 goto reset_out; 4497 4498 return nbytes; 4499 4500 reset_out: 4501 /* Clean out command structure on command error out */ 4502 memset(&idiag, 0, sizeof(idiag)); 4503 return nbytes; 4504 4505 error_out: 4506 /* Clean out command structure on command error out */ 4507 memset(&idiag, 0, sizeof(idiag)); 4508 return -EINVAL; 4509 } 4510 4511 /** 4512 * lpfc_idiag_extacc_avail_get - get the available extents information 4513 * @phba: pointer to lpfc hba data structure. 4514 * @pbuffer: pointer to internal buffer. 4515 * @len: length into the internal buffer data has been copied. 4516 * 4517 * Description: 4518 * This routine is to get the available extent information. 4519 * 4520 * Returns: 4521 * overall lenth of the data read into the internal buffer. 4522 **/ 4523 static int 4524 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 4525 { 4526 uint16_t ext_cnt, ext_size; 4527 4528 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4529 "\nAvailable Extents Information:\n"); 4530 4531 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4532 "\tPort Available VPI extents: "); 4533 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 4534 &ext_cnt, &ext_size); 4535 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4536 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4537 4538 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4539 "\tPort Available VFI extents: "); 4540 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 4541 &ext_cnt, &ext_size); 4542 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4543 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4544 4545 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4546 "\tPort Available RPI extents: "); 4547 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 4548 &ext_cnt, &ext_size); 4549 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4550 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4551 4552 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4553 "\tPort Available XRI extents: "); 4554 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 4555 &ext_cnt, &ext_size); 4556 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4557 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4558 4559 return len; 4560 } 4561 4562 /** 4563 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 4564 * @phba: pointer to lpfc hba data structure. 4565 * @pbuffer: pointer to internal buffer. 4566 * @len: length into the internal buffer data has been copied. 4567 * 4568 * Description: 4569 * This routine is to get the allocated extent information. 4570 * 4571 * Returns: 4572 * overall lenth of the data read into the internal buffer. 4573 **/ 4574 static int 4575 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 4576 { 4577 uint16_t ext_cnt, ext_size; 4578 int rc; 4579 4580 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4581 "\nAllocated Extents Information:\n"); 4582 4583 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4584 "\tHost Allocated VPI extents: "); 4585 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 4586 &ext_cnt, &ext_size); 4587 if (!rc) 4588 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4589 "Port %d Extent %3d, Size %3d\n", 4590 phba->brd_no, ext_cnt, ext_size); 4591 else 4592 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4593 "N/A\n"); 4594 4595 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4596 "\tHost Allocated VFI extents: "); 4597 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 4598 &ext_cnt, &ext_size); 4599 if (!rc) 4600 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4601 "Port %d Extent %3d, Size %3d\n", 4602 phba->brd_no, ext_cnt, ext_size); 4603 else 4604 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4605 "N/A\n"); 4606 4607 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4608 "\tHost Allocated RPI extents: "); 4609 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 4610 &ext_cnt, &ext_size); 4611 if (!rc) 4612 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4613 "Port %d Extent %3d, Size %3d\n", 4614 phba->brd_no, ext_cnt, ext_size); 4615 else 4616 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4617 "N/A\n"); 4618 4619 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4620 "\tHost Allocated XRI extents: "); 4621 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 4622 &ext_cnt, &ext_size); 4623 if (!rc) 4624 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4625 "Port %d Extent %3d, Size %3d\n", 4626 phba->brd_no, ext_cnt, ext_size); 4627 else 4628 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4629 "N/A\n"); 4630 4631 return len; 4632 } 4633 4634 /** 4635 * lpfc_idiag_extacc_drivr_get - get driver extent information 4636 * @phba: pointer to lpfc hba data structure. 4637 * @pbuffer: pointer to internal buffer. 4638 * @len: length into the internal buffer data has been copied. 4639 * 4640 * Description: 4641 * This routine is to get the driver extent information. 4642 * 4643 * Returns: 4644 * overall lenth of the data read into the internal buffer. 4645 **/ 4646 static int 4647 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 4648 { 4649 struct lpfc_rsrc_blks *rsrc_blks; 4650 int index; 4651 4652 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4653 "\nDriver Extents Information:\n"); 4654 4655 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4656 "\tVPI extents:\n"); 4657 index = 0; 4658 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 4659 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4660 "\t\tBlock %3d: Start %4d, Count %4d\n", 4661 index, rsrc_blks->rsrc_start, 4662 rsrc_blks->rsrc_size); 4663 index++; 4664 } 4665 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4666 "\tVFI extents:\n"); 4667 index = 0; 4668 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 4669 list) { 4670 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4671 "\t\tBlock %3d: Start %4d, Count %4d\n", 4672 index, rsrc_blks->rsrc_start, 4673 rsrc_blks->rsrc_size); 4674 index++; 4675 } 4676 4677 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4678 "\tRPI extents:\n"); 4679 index = 0; 4680 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 4681 list) { 4682 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4683 "\t\tBlock %3d: Start %4d, Count %4d\n", 4684 index, rsrc_blks->rsrc_start, 4685 rsrc_blks->rsrc_size); 4686 index++; 4687 } 4688 4689 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4690 "\tXRI extents:\n"); 4691 index = 0; 4692 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 4693 list) { 4694 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4695 "\t\tBlock %3d: Start %4d, Count %4d\n", 4696 index, rsrc_blks->rsrc_start, 4697 rsrc_blks->rsrc_size); 4698 index++; 4699 } 4700 4701 return len; 4702 } 4703 4704 /** 4705 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 4706 * @file: The file pointer to read from. 4707 * @buf: The buffer to copy the user data from. 4708 * @nbytes: The number of bytes to get. 4709 * @ppos: The position in the file to start reading from. 4710 * 4711 * This routine get the debugfs idiag command struct from user space and then 4712 * perform the syntax check for extent information access commands and sets 4713 * up the necessary states in the idiag command struct accordingly. 4714 * 4715 * It returns the @nbytges passing in from debugfs user space when successful. 4716 * In case of error conditions, it returns proper error code back to the user 4717 * space. 4718 **/ 4719 static ssize_t 4720 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 4721 size_t nbytes, loff_t *ppos) 4722 { 4723 struct lpfc_debug *debug = file->private_data; 4724 uint32_t ext_map; 4725 int rc; 4726 4727 /* This is a user write operation */ 4728 debug->op = LPFC_IDIAG_OP_WR; 4729 4730 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4731 if (rc < 0) 4732 return rc; 4733 4734 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4735 4736 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4737 goto error_out; 4738 if (rc != LPFC_EXT_ACC_CMD_ARG) 4739 goto error_out; 4740 if (!(ext_map & LPFC_EXT_ACC_ALL)) 4741 goto error_out; 4742 4743 return nbytes; 4744 error_out: 4745 /* Clean out command structure on command error out */ 4746 memset(&idiag, 0, sizeof(idiag)); 4747 return -EINVAL; 4748 } 4749 4750 /** 4751 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 4752 * @file: The file pointer to read from. 4753 * @buf: The buffer to copy the data to. 4754 * @nbytes: The number of bytes to read. 4755 * @ppos: The position in the file to start reading from. 4756 * 4757 * Description: 4758 * This routine reads data from the proper extent information according to 4759 * the idiag command, and copies to user @buf. 4760 * 4761 * Returns: 4762 * This function returns the amount of data that was read (this could be less 4763 * than @nbytes if the end of the file was reached) or a negative error value. 4764 **/ 4765 static ssize_t 4766 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 4767 loff_t *ppos) 4768 { 4769 struct lpfc_debug *debug = file->private_data; 4770 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4771 char *pbuffer; 4772 uint32_t ext_map; 4773 int len = 0; 4774 4775 /* This is a user read operation */ 4776 debug->op = LPFC_IDIAG_OP_RD; 4777 4778 if (!debug->buffer) 4779 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 4780 if (!debug->buffer) 4781 return 0; 4782 pbuffer = debug->buffer; 4783 if (*ppos) 4784 return 0; 4785 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4786 return 0; 4787 4788 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4789 if (ext_map & LPFC_EXT_ACC_AVAIL) 4790 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 4791 if (ext_map & LPFC_EXT_ACC_ALLOC) 4792 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 4793 if (ext_map & LPFC_EXT_ACC_DRIVR) 4794 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 4795 4796 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4797 } 4798 4799 #undef lpfc_debugfs_op_disc_trc 4800 static const struct file_operations lpfc_debugfs_op_disc_trc = { 4801 .owner = THIS_MODULE, 4802 .open = lpfc_debugfs_disc_trc_open, 4803 .llseek = lpfc_debugfs_lseek, 4804 .read = lpfc_debugfs_read, 4805 .release = lpfc_debugfs_release, 4806 }; 4807 4808 #undef lpfc_debugfs_op_nodelist 4809 static const struct file_operations lpfc_debugfs_op_nodelist = { 4810 .owner = THIS_MODULE, 4811 .open = lpfc_debugfs_nodelist_open, 4812 .llseek = lpfc_debugfs_lseek, 4813 .read = lpfc_debugfs_read, 4814 .release = lpfc_debugfs_release, 4815 }; 4816 4817 #undef lpfc_debugfs_op_hbqinfo 4818 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 4819 .owner = THIS_MODULE, 4820 .open = lpfc_debugfs_hbqinfo_open, 4821 .llseek = lpfc_debugfs_lseek, 4822 .read = lpfc_debugfs_read, 4823 .release = lpfc_debugfs_release, 4824 }; 4825 4826 #undef lpfc_debugfs_op_dumpHBASlim 4827 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 4828 .owner = THIS_MODULE, 4829 .open = lpfc_debugfs_dumpHBASlim_open, 4830 .llseek = lpfc_debugfs_lseek, 4831 .read = lpfc_debugfs_read, 4832 .release = lpfc_debugfs_release, 4833 }; 4834 4835 #undef lpfc_debugfs_op_dumpHostSlim 4836 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 4837 .owner = THIS_MODULE, 4838 .open = lpfc_debugfs_dumpHostSlim_open, 4839 .llseek = lpfc_debugfs_lseek, 4840 .read = lpfc_debugfs_read, 4841 .release = lpfc_debugfs_release, 4842 }; 4843 4844 #undef lpfc_debugfs_op_nvmestat 4845 static const struct file_operations lpfc_debugfs_op_nvmestat = { 4846 .owner = THIS_MODULE, 4847 .open = lpfc_debugfs_nvmestat_open, 4848 .llseek = lpfc_debugfs_lseek, 4849 .read = lpfc_debugfs_read, 4850 .write = lpfc_debugfs_nvmestat_write, 4851 .release = lpfc_debugfs_release, 4852 }; 4853 4854 #undef lpfc_debugfs_op_nvmektime 4855 static const struct file_operations lpfc_debugfs_op_nvmektime = { 4856 .owner = THIS_MODULE, 4857 .open = lpfc_debugfs_nvmektime_open, 4858 .llseek = lpfc_debugfs_lseek, 4859 .read = lpfc_debugfs_read, 4860 .write = lpfc_debugfs_nvmektime_write, 4861 .release = lpfc_debugfs_release, 4862 }; 4863 4864 #undef lpfc_debugfs_op_nvmeio_trc 4865 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 4866 .owner = THIS_MODULE, 4867 .open = lpfc_debugfs_nvmeio_trc_open, 4868 .llseek = lpfc_debugfs_lseek, 4869 .read = lpfc_debugfs_read, 4870 .write = lpfc_debugfs_nvmeio_trc_write, 4871 .release = lpfc_debugfs_release, 4872 }; 4873 4874 #undef lpfc_debugfs_op_cpucheck 4875 static const struct file_operations lpfc_debugfs_op_cpucheck = { 4876 .owner = THIS_MODULE, 4877 .open = lpfc_debugfs_cpucheck_open, 4878 .llseek = lpfc_debugfs_lseek, 4879 .read = lpfc_debugfs_read, 4880 .write = lpfc_debugfs_cpucheck_write, 4881 .release = lpfc_debugfs_release, 4882 }; 4883 4884 #undef lpfc_debugfs_op_dumpData 4885 static const struct file_operations lpfc_debugfs_op_dumpData = { 4886 .owner = THIS_MODULE, 4887 .open = lpfc_debugfs_dumpData_open, 4888 .llseek = lpfc_debugfs_lseek, 4889 .read = lpfc_debugfs_read, 4890 .write = lpfc_debugfs_dumpDataDif_write, 4891 .release = lpfc_debugfs_dumpDataDif_release, 4892 }; 4893 4894 #undef lpfc_debugfs_op_dumpDif 4895 static const struct file_operations lpfc_debugfs_op_dumpDif = { 4896 .owner = THIS_MODULE, 4897 .open = lpfc_debugfs_dumpDif_open, 4898 .llseek = lpfc_debugfs_lseek, 4899 .read = lpfc_debugfs_read, 4900 .write = lpfc_debugfs_dumpDataDif_write, 4901 .release = lpfc_debugfs_dumpDataDif_release, 4902 }; 4903 4904 #undef lpfc_debugfs_op_dif_err 4905 static const struct file_operations lpfc_debugfs_op_dif_err = { 4906 .owner = THIS_MODULE, 4907 .open = simple_open, 4908 .llseek = lpfc_debugfs_lseek, 4909 .read = lpfc_debugfs_dif_err_read, 4910 .write = lpfc_debugfs_dif_err_write, 4911 .release = lpfc_debugfs_dif_err_release, 4912 }; 4913 4914 #undef lpfc_debugfs_op_slow_ring_trc 4915 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 4916 .owner = THIS_MODULE, 4917 .open = lpfc_debugfs_slow_ring_trc_open, 4918 .llseek = lpfc_debugfs_lseek, 4919 .read = lpfc_debugfs_read, 4920 .release = lpfc_debugfs_release, 4921 }; 4922 4923 static struct dentry *lpfc_debugfs_root = NULL; 4924 static atomic_t lpfc_debugfs_hba_count; 4925 4926 /* 4927 * File operations for the iDiag debugfs 4928 */ 4929 #undef lpfc_idiag_op_pciCfg 4930 static const struct file_operations lpfc_idiag_op_pciCfg = { 4931 .owner = THIS_MODULE, 4932 .open = lpfc_idiag_open, 4933 .llseek = lpfc_debugfs_lseek, 4934 .read = lpfc_idiag_pcicfg_read, 4935 .write = lpfc_idiag_pcicfg_write, 4936 .release = lpfc_idiag_cmd_release, 4937 }; 4938 4939 #undef lpfc_idiag_op_barAcc 4940 static const struct file_operations lpfc_idiag_op_barAcc = { 4941 .owner = THIS_MODULE, 4942 .open = lpfc_idiag_open, 4943 .llseek = lpfc_debugfs_lseek, 4944 .read = lpfc_idiag_baracc_read, 4945 .write = lpfc_idiag_baracc_write, 4946 .release = lpfc_idiag_cmd_release, 4947 }; 4948 4949 #undef lpfc_idiag_op_queInfo 4950 static const struct file_operations lpfc_idiag_op_queInfo = { 4951 .owner = THIS_MODULE, 4952 .open = lpfc_idiag_open, 4953 .read = lpfc_idiag_queinfo_read, 4954 .release = lpfc_idiag_release, 4955 }; 4956 4957 #undef lpfc_idiag_op_queAcc 4958 static const struct file_operations lpfc_idiag_op_queAcc = { 4959 .owner = THIS_MODULE, 4960 .open = lpfc_idiag_open, 4961 .llseek = lpfc_debugfs_lseek, 4962 .read = lpfc_idiag_queacc_read, 4963 .write = lpfc_idiag_queacc_write, 4964 .release = lpfc_idiag_cmd_release, 4965 }; 4966 4967 #undef lpfc_idiag_op_drbAcc 4968 static const struct file_operations lpfc_idiag_op_drbAcc = { 4969 .owner = THIS_MODULE, 4970 .open = lpfc_idiag_open, 4971 .llseek = lpfc_debugfs_lseek, 4972 .read = lpfc_idiag_drbacc_read, 4973 .write = lpfc_idiag_drbacc_write, 4974 .release = lpfc_idiag_cmd_release, 4975 }; 4976 4977 #undef lpfc_idiag_op_ctlAcc 4978 static const struct file_operations lpfc_idiag_op_ctlAcc = { 4979 .owner = THIS_MODULE, 4980 .open = lpfc_idiag_open, 4981 .llseek = lpfc_debugfs_lseek, 4982 .read = lpfc_idiag_ctlacc_read, 4983 .write = lpfc_idiag_ctlacc_write, 4984 .release = lpfc_idiag_cmd_release, 4985 }; 4986 4987 #undef lpfc_idiag_op_mbxAcc 4988 static const struct file_operations lpfc_idiag_op_mbxAcc = { 4989 .owner = THIS_MODULE, 4990 .open = lpfc_idiag_open, 4991 .llseek = lpfc_debugfs_lseek, 4992 .read = lpfc_idiag_mbxacc_read, 4993 .write = lpfc_idiag_mbxacc_write, 4994 .release = lpfc_idiag_cmd_release, 4995 }; 4996 4997 #undef lpfc_idiag_op_extAcc 4998 static const struct file_operations lpfc_idiag_op_extAcc = { 4999 .owner = THIS_MODULE, 5000 .open = lpfc_idiag_open, 5001 .llseek = lpfc_debugfs_lseek, 5002 .read = lpfc_idiag_extacc_read, 5003 .write = lpfc_idiag_extacc_write, 5004 .release = lpfc_idiag_cmd_release, 5005 }; 5006 5007 #endif 5008 5009 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5010 * @phba: Pointer to HBA context object. 5011 * @dmabuf: Pointer to a DMA buffer descriptor. 5012 * 5013 * Description: 5014 * This routine dump a bsg pass-through non-embedded mailbox command with 5015 * external buffer. 5016 **/ 5017 void 5018 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5019 enum mbox_type mbox_tp, enum dma_type dma_tp, 5020 enum sta_type sta_tp, 5021 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5022 { 5023 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5024 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5025 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5026 int len = 0; 5027 uint32_t do_dump = 0; 5028 uint32_t *pword; 5029 uint32_t i; 5030 5031 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5032 return; 5033 5034 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5035 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5036 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5037 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5038 5039 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5040 (*mbx_dump_cnt == 0) || 5041 (*mbx_word_cnt == 0)) 5042 return; 5043 5044 if (*mbx_mbox_cmd != 0x9B) 5045 return; 5046 5047 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5048 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5049 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5050 pr_err("\nRead mbox command (x%x), " 5051 "nemb:0x%x, extbuf_cnt:%d:\n", 5052 sta_tp, nemb_tp, ext_buf); 5053 } 5054 } 5055 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5056 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5057 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5058 pr_err("\nRead mbox buffer (x%x), " 5059 "nemb:0x%x, extbuf_seq:%d:\n", 5060 sta_tp, nemb_tp, ext_buf); 5061 } 5062 } 5063 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5064 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5065 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5066 pr_err("\nWrite mbox command (x%x), " 5067 "nemb:0x%x, extbuf_cnt:%d:\n", 5068 sta_tp, nemb_tp, ext_buf); 5069 } 5070 } 5071 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5072 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5073 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5074 pr_err("\nWrite mbox buffer (x%x), " 5075 "nemb:0x%x, extbuf_seq:%d:\n", 5076 sta_tp, nemb_tp, ext_buf); 5077 } 5078 } 5079 5080 /* dump buffer content */ 5081 if (do_dump) { 5082 pword = (uint32_t *)dmabuf->virt; 5083 for (i = 0; i < *mbx_word_cnt; i++) { 5084 if (!(i % 8)) { 5085 if (i != 0) 5086 pr_err("%s\n", line_buf); 5087 len = 0; 5088 len += snprintf(line_buf+len, 5089 LPFC_MBX_ACC_LBUF_SZ-len, 5090 "%03d: ", i); 5091 } 5092 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5093 "%08x ", (uint32_t)*pword); 5094 pword++; 5095 } 5096 if ((i - 1) % 8) 5097 pr_err("%s\n", line_buf); 5098 (*mbx_dump_cnt)--; 5099 } 5100 5101 /* Clean out command structure on reaching dump count */ 5102 if (*mbx_dump_cnt == 0) 5103 memset(&idiag, 0, sizeof(idiag)); 5104 return; 5105 #endif 5106 } 5107 5108 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5109 * @phba: Pointer to HBA context object. 5110 * @dmabuf: Pointer to a DMA buffer descriptor. 5111 * 5112 * Description: 5113 * This routine dump a pass-through non-embedded mailbox command from issue 5114 * mailbox command. 5115 **/ 5116 void 5117 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5118 { 5119 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5120 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5121 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5122 int len = 0; 5123 uint32_t *pword; 5124 uint8_t *pbyte; 5125 uint32_t i, j; 5126 5127 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5128 return; 5129 5130 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5131 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5132 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5133 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5134 5135 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5136 (*mbx_dump_cnt == 0) || 5137 (*mbx_word_cnt == 0)) 5138 return; 5139 5140 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5141 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5142 return; 5143 5144 /* dump buffer content */ 5145 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5146 pr_err("Mailbox command:0x%x dump by word:\n", 5147 pmbox->mbxCommand); 5148 pword = (uint32_t *)pmbox; 5149 for (i = 0; i < *mbx_word_cnt; i++) { 5150 if (!(i % 8)) { 5151 if (i != 0) 5152 pr_err("%s\n", line_buf); 5153 len = 0; 5154 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5155 len += snprintf(line_buf+len, 5156 LPFC_MBX_ACC_LBUF_SZ-len, 5157 "%03d: ", i); 5158 } 5159 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5160 "%08x ", 5161 ((uint32_t)*pword) & 0xffffffff); 5162 pword++; 5163 } 5164 if ((i - 1) % 8) 5165 pr_err("%s\n", line_buf); 5166 pr_err("\n"); 5167 } 5168 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5169 pr_err("Mailbox command:0x%x dump by byte:\n", 5170 pmbox->mbxCommand); 5171 pbyte = (uint8_t *)pmbox; 5172 for (i = 0; i < *mbx_word_cnt; i++) { 5173 if (!(i % 8)) { 5174 if (i != 0) 5175 pr_err("%s\n", line_buf); 5176 len = 0; 5177 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5178 len += snprintf(line_buf+len, 5179 LPFC_MBX_ACC_LBUF_SZ-len, 5180 "%03d: ", i); 5181 } 5182 for (j = 0; j < 4; j++) { 5183 len += snprintf(line_buf+len, 5184 LPFC_MBX_ACC_LBUF_SZ-len, 5185 "%02x", 5186 ((uint8_t)*pbyte) & 0xff); 5187 pbyte++; 5188 } 5189 len += snprintf(line_buf+len, 5190 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5191 } 5192 if ((i - 1) % 8) 5193 pr_err("%s\n", line_buf); 5194 pr_err("\n"); 5195 } 5196 (*mbx_dump_cnt)--; 5197 5198 /* Clean out command structure on reaching dump count */ 5199 if (*mbx_dump_cnt == 0) 5200 memset(&idiag, 0, sizeof(idiag)); 5201 return; 5202 #endif 5203 } 5204 5205 /** 5206 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5207 * @vport: The vport pointer to initialize. 5208 * 5209 * Description: 5210 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5211 * If not already created, this routine will create the lpfc directory, and 5212 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5213 * also create each file used to access lpfc specific debugfs information. 5214 **/ 5215 inline void 5216 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5217 { 5218 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5219 struct lpfc_hba *phba = vport->phba; 5220 char name[64]; 5221 uint32_t num, i; 5222 bool pport_setup = false; 5223 5224 if (!lpfc_debugfs_enable) 5225 return; 5226 5227 /* Setup lpfc root directory */ 5228 if (!lpfc_debugfs_root) { 5229 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5230 atomic_set(&lpfc_debugfs_hba_count, 0); 5231 if (!lpfc_debugfs_root) { 5232 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5233 "0408 Cannot create debugfs root\n"); 5234 goto debug_failed; 5235 } 5236 } 5237 if (!lpfc_debugfs_start_time) 5238 lpfc_debugfs_start_time = jiffies; 5239 5240 /* Setup funcX directory for specific HBA PCI function */ 5241 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5242 if (!phba->hba_debugfs_root) { 5243 pport_setup = true; 5244 phba->hba_debugfs_root = 5245 debugfs_create_dir(name, lpfc_debugfs_root); 5246 if (!phba->hba_debugfs_root) { 5247 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5248 "0412 Cannot create debugfs hba\n"); 5249 goto debug_failed; 5250 } 5251 atomic_inc(&lpfc_debugfs_hba_count); 5252 atomic_set(&phba->debugfs_vport_count, 0); 5253 5254 /* Setup hbqinfo */ 5255 snprintf(name, sizeof(name), "hbqinfo"); 5256 phba->debug_hbqinfo = 5257 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5258 phba->hba_debugfs_root, 5259 phba, &lpfc_debugfs_op_hbqinfo); 5260 if (!phba->debug_hbqinfo) { 5261 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5262 "0411 Cannot create debugfs hbqinfo\n"); 5263 goto debug_failed; 5264 } 5265 5266 /* Setup dumpHBASlim */ 5267 if (phba->sli_rev < LPFC_SLI_REV4) { 5268 snprintf(name, sizeof(name), "dumpHBASlim"); 5269 phba->debug_dumpHBASlim = 5270 debugfs_create_file(name, 5271 S_IFREG|S_IRUGO|S_IWUSR, 5272 phba->hba_debugfs_root, 5273 phba, &lpfc_debugfs_op_dumpHBASlim); 5274 if (!phba->debug_dumpHBASlim) { 5275 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5276 "0413 Cannot create debugfs " 5277 "dumpHBASlim\n"); 5278 goto debug_failed; 5279 } 5280 } else 5281 phba->debug_dumpHBASlim = NULL; 5282 5283 /* Setup dumpHostSlim */ 5284 if (phba->sli_rev < LPFC_SLI_REV4) { 5285 snprintf(name, sizeof(name), "dumpHostSlim"); 5286 phba->debug_dumpHostSlim = 5287 debugfs_create_file(name, 5288 S_IFREG|S_IRUGO|S_IWUSR, 5289 phba->hba_debugfs_root, 5290 phba, &lpfc_debugfs_op_dumpHostSlim); 5291 if (!phba->debug_dumpHostSlim) { 5292 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5293 "0414 Cannot create debugfs " 5294 "dumpHostSlim\n"); 5295 goto debug_failed; 5296 } 5297 } else 5298 phba->debug_dumpHostSlim = NULL; 5299 5300 /* Setup dumpData */ 5301 snprintf(name, sizeof(name), "dumpData"); 5302 phba->debug_dumpData = 5303 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5304 phba->hba_debugfs_root, 5305 phba, &lpfc_debugfs_op_dumpData); 5306 if (!phba->debug_dumpData) { 5307 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5308 "0800 Cannot create debugfs dumpData\n"); 5309 goto debug_failed; 5310 } 5311 5312 /* Setup dumpDif */ 5313 snprintf(name, sizeof(name), "dumpDif"); 5314 phba->debug_dumpDif = 5315 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5316 phba->hba_debugfs_root, 5317 phba, &lpfc_debugfs_op_dumpDif); 5318 if (!phba->debug_dumpDif) { 5319 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5320 "0801 Cannot create debugfs dumpDif\n"); 5321 goto debug_failed; 5322 } 5323 5324 /* Setup DIF Error Injections */ 5325 snprintf(name, sizeof(name), "InjErrLBA"); 5326 phba->debug_InjErrLBA = 5327 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5328 phba->hba_debugfs_root, 5329 phba, &lpfc_debugfs_op_dif_err); 5330 if (!phba->debug_InjErrLBA) { 5331 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5332 "0807 Cannot create debugfs InjErrLBA\n"); 5333 goto debug_failed; 5334 } 5335 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5336 5337 snprintf(name, sizeof(name), "InjErrNPortID"); 5338 phba->debug_InjErrNPortID = 5339 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5340 phba->hba_debugfs_root, 5341 phba, &lpfc_debugfs_op_dif_err); 5342 if (!phba->debug_InjErrNPortID) { 5343 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5344 "0809 Cannot create debugfs InjErrNPortID\n"); 5345 goto debug_failed; 5346 } 5347 5348 snprintf(name, sizeof(name), "InjErrWWPN"); 5349 phba->debug_InjErrWWPN = 5350 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5351 phba->hba_debugfs_root, 5352 phba, &lpfc_debugfs_op_dif_err); 5353 if (!phba->debug_InjErrWWPN) { 5354 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5355 "0810 Cannot create debugfs InjErrWWPN\n"); 5356 goto debug_failed; 5357 } 5358 5359 snprintf(name, sizeof(name), "writeGuardInjErr"); 5360 phba->debug_writeGuard = 5361 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5362 phba->hba_debugfs_root, 5363 phba, &lpfc_debugfs_op_dif_err); 5364 if (!phba->debug_writeGuard) { 5365 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5366 "0802 Cannot create debugfs writeGuard\n"); 5367 goto debug_failed; 5368 } 5369 5370 snprintf(name, sizeof(name), "writeAppInjErr"); 5371 phba->debug_writeApp = 5372 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5373 phba->hba_debugfs_root, 5374 phba, &lpfc_debugfs_op_dif_err); 5375 if (!phba->debug_writeApp) { 5376 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5377 "0803 Cannot create debugfs writeApp\n"); 5378 goto debug_failed; 5379 } 5380 5381 snprintf(name, sizeof(name), "writeRefInjErr"); 5382 phba->debug_writeRef = 5383 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5384 phba->hba_debugfs_root, 5385 phba, &lpfc_debugfs_op_dif_err); 5386 if (!phba->debug_writeRef) { 5387 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5388 "0804 Cannot create debugfs writeRef\n"); 5389 goto debug_failed; 5390 } 5391 5392 snprintf(name, sizeof(name), "readGuardInjErr"); 5393 phba->debug_readGuard = 5394 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5395 phba->hba_debugfs_root, 5396 phba, &lpfc_debugfs_op_dif_err); 5397 if (!phba->debug_readGuard) { 5398 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5399 "0808 Cannot create debugfs readGuard\n"); 5400 goto debug_failed; 5401 } 5402 5403 snprintf(name, sizeof(name), "readAppInjErr"); 5404 phba->debug_readApp = 5405 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5406 phba->hba_debugfs_root, 5407 phba, &lpfc_debugfs_op_dif_err); 5408 if (!phba->debug_readApp) { 5409 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5410 "0805 Cannot create debugfs readApp\n"); 5411 goto debug_failed; 5412 } 5413 5414 snprintf(name, sizeof(name), "readRefInjErr"); 5415 phba->debug_readRef = 5416 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5417 phba->hba_debugfs_root, 5418 phba, &lpfc_debugfs_op_dif_err); 5419 if (!phba->debug_readRef) { 5420 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5421 "0806 Cannot create debugfs readApp\n"); 5422 goto debug_failed; 5423 } 5424 5425 /* Setup slow ring trace */ 5426 if (lpfc_debugfs_max_slow_ring_trc) { 5427 num = lpfc_debugfs_max_slow_ring_trc - 1; 5428 if (num & lpfc_debugfs_max_slow_ring_trc) { 5429 /* Change to be a power of 2 */ 5430 num = lpfc_debugfs_max_slow_ring_trc; 5431 i = 0; 5432 while (num > 1) { 5433 num = num >> 1; 5434 i++; 5435 } 5436 lpfc_debugfs_max_slow_ring_trc = (1 << i); 5437 pr_err("lpfc_debugfs_max_disc_trc changed to " 5438 "%d\n", lpfc_debugfs_max_disc_trc); 5439 } 5440 } 5441 5442 snprintf(name, sizeof(name), "slow_ring_trace"); 5443 phba->debug_slow_ring_trc = 5444 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5445 phba->hba_debugfs_root, 5446 phba, &lpfc_debugfs_op_slow_ring_trc); 5447 if (!phba->debug_slow_ring_trc) { 5448 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5449 "0415 Cannot create debugfs " 5450 "slow_ring_trace\n"); 5451 goto debug_failed; 5452 } 5453 if (!phba->slow_ring_trc) { 5454 phba->slow_ring_trc = kmalloc( 5455 (sizeof(struct lpfc_debugfs_trc) * 5456 lpfc_debugfs_max_slow_ring_trc), 5457 GFP_KERNEL); 5458 if (!phba->slow_ring_trc) { 5459 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5460 "0416 Cannot create debugfs " 5461 "slow_ring buffer\n"); 5462 goto debug_failed; 5463 } 5464 atomic_set(&phba->slow_ring_trc_cnt, 0); 5465 memset(phba->slow_ring_trc, 0, 5466 (sizeof(struct lpfc_debugfs_trc) * 5467 lpfc_debugfs_max_slow_ring_trc)); 5468 } 5469 5470 snprintf(name, sizeof(name), "nvmeio_trc"); 5471 phba->debug_nvmeio_trc = 5472 debugfs_create_file(name, 0644, 5473 phba->hba_debugfs_root, 5474 phba, &lpfc_debugfs_op_nvmeio_trc); 5475 if (!phba->debug_nvmeio_trc) { 5476 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5477 "0574 No create debugfs nvmeio_trc\n"); 5478 goto debug_failed; 5479 } 5480 5481 atomic_set(&phba->nvmeio_trc_cnt, 0); 5482 if (lpfc_debugfs_max_nvmeio_trc) { 5483 num = lpfc_debugfs_max_nvmeio_trc - 1; 5484 if (num & lpfc_debugfs_max_disc_trc) { 5485 /* Change to be a power of 2 */ 5486 num = lpfc_debugfs_max_nvmeio_trc; 5487 i = 0; 5488 while (num > 1) { 5489 num = num >> 1; 5490 i++; 5491 } 5492 lpfc_debugfs_max_nvmeio_trc = (1 << i); 5493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5494 "0575 lpfc_debugfs_max_nvmeio_trc " 5495 "changed to %d\n", 5496 lpfc_debugfs_max_nvmeio_trc); 5497 } 5498 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 5499 5500 /* Allocate trace buffer and initialize */ 5501 phba->nvmeio_trc = kzalloc( 5502 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 5503 phba->nvmeio_trc_size), GFP_KERNEL); 5504 5505 if (!phba->nvmeio_trc) { 5506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5507 "0576 Cannot create debugfs " 5508 "nvmeio_trc buffer\n"); 5509 goto nvmeio_off; 5510 } 5511 phba->nvmeio_trc_on = 1; 5512 phba->nvmeio_trc_output_idx = 0; 5513 phba->nvmeio_trc = NULL; 5514 } else { 5515 nvmeio_off: 5516 phba->nvmeio_trc_size = 0; 5517 phba->nvmeio_trc_on = 0; 5518 phba->nvmeio_trc_output_idx = 0; 5519 phba->nvmeio_trc = NULL; 5520 } 5521 } 5522 5523 snprintf(name, sizeof(name), "vport%d", vport->vpi); 5524 if (!vport->vport_debugfs_root) { 5525 vport->vport_debugfs_root = 5526 debugfs_create_dir(name, phba->hba_debugfs_root); 5527 if (!vport->vport_debugfs_root) { 5528 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5529 "0417 Can't create debugfs\n"); 5530 goto debug_failed; 5531 } 5532 atomic_inc(&phba->debugfs_vport_count); 5533 } 5534 5535 if (lpfc_debugfs_max_disc_trc) { 5536 num = lpfc_debugfs_max_disc_trc - 1; 5537 if (num & lpfc_debugfs_max_disc_trc) { 5538 /* Change to be a power of 2 */ 5539 num = lpfc_debugfs_max_disc_trc; 5540 i = 0; 5541 while (num > 1) { 5542 num = num >> 1; 5543 i++; 5544 } 5545 lpfc_debugfs_max_disc_trc = (1 << i); 5546 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 5547 lpfc_debugfs_max_disc_trc); 5548 } 5549 } 5550 5551 vport->disc_trc = kzalloc( 5552 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 5553 GFP_KERNEL); 5554 5555 if (!vport->disc_trc) { 5556 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5557 "0418 Cannot create debugfs disc trace " 5558 "buffer\n"); 5559 goto debug_failed; 5560 } 5561 atomic_set(&vport->disc_trc_cnt, 0); 5562 5563 snprintf(name, sizeof(name), "discovery_trace"); 5564 vport->debug_disc_trc = 5565 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5566 vport->vport_debugfs_root, 5567 vport, &lpfc_debugfs_op_disc_trc); 5568 if (!vport->debug_disc_trc) { 5569 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5570 "0419 Cannot create debugfs " 5571 "discovery_trace\n"); 5572 goto debug_failed; 5573 } 5574 snprintf(name, sizeof(name), "nodelist"); 5575 vport->debug_nodelist = 5576 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5577 vport->vport_debugfs_root, 5578 vport, &lpfc_debugfs_op_nodelist); 5579 if (!vport->debug_nodelist) { 5580 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5581 "2985 Can't create debugfs nodelist\n"); 5582 goto debug_failed; 5583 } 5584 5585 snprintf(name, sizeof(name), "nvmestat"); 5586 vport->debug_nvmestat = 5587 debugfs_create_file(name, 0644, 5588 vport->vport_debugfs_root, 5589 vport, &lpfc_debugfs_op_nvmestat); 5590 if (!vport->debug_nvmestat) { 5591 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5592 "0811 Cannot create debugfs nvmestat\n"); 5593 goto debug_failed; 5594 } 5595 5596 snprintf(name, sizeof(name), "nvmektime"); 5597 vport->debug_nvmektime = 5598 debugfs_create_file(name, 0644, 5599 vport->vport_debugfs_root, 5600 vport, &lpfc_debugfs_op_nvmektime); 5601 if (!vport->debug_nvmektime) { 5602 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5603 "0815 Cannot create debugfs nvmektime\n"); 5604 goto debug_failed; 5605 } 5606 5607 snprintf(name, sizeof(name), "cpucheck"); 5608 vport->debug_cpucheck = 5609 debugfs_create_file(name, 0644, 5610 vport->vport_debugfs_root, 5611 vport, &lpfc_debugfs_op_cpucheck); 5612 if (!vport->debug_cpucheck) { 5613 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5614 "0819 Cannot create debugfs cpucheck\n"); 5615 goto debug_failed; 5616 } 5617 5618 /* 5619 * The following section is for additional directories/files for the 5620 * physical port. 5621 */ 5622 5623 if (!pport_setup) 5624 goto debug_failed; 5625 5626 /* 5627 * iDiag debugfs root entry points for SLI4 device only 5628 */ 5629 if (phba->sli_rev < LPFC_SLI_REV4) 5630 goto debug_failed; 5631 5632 snprintf(name, sizeof(name), "iDiag"); 5633 if (!phba->idiag_root) { 5634 phba->idiag_root = 5635 debugfs_create_dir(name, phba->hba_debugfs_root); 5636 if (!phba->idiag_root) { 5637 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5638 "2922 Can't create idiag debugfs\n"); 5639 goto debug_failed; 5640 } 5641 /* Initialize iDiag data structure */ 5642 memset(&idiag, 0, sizeof(idiag)); 5643 } 5644 5645 /* iDiag read PCI config space */ 5646 snprintf(name, sizeof(name), "pciCfg"); 5647 if (!phba->idiag_pci_cfg) { 5648 phba->idiag_pci_cfg = 5649 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5650 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 5651 if (!phba->idiag_pci_cfg) { 5652 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5653 "2923 Can't create idiag debugfs\n"); 5654 goto debug_failed; 5655 } 5656 idiag.offset.last_rd = 0; 5657 } 5658 5659 /* iDiag PCI BAR access */ 5660 snprintf(name, sizeof(name), "barAcc"); 5661 if (!phba->idiag_bar_acc) { 5662 phba->idiag_bar_acc = 5663 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5664 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 5665 if (!phba->idiag_bar_acc) { 5666 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5667 "3056 Can't create idiag debugfs\n"); 5668 goto debug_failed; 5669 } 5670 idiag.offset.last_rd = 0; 5671 } 5672 5673 /* iDiag get PCI function queue information */ 5674 snprintf(name, sizeof(name), "queInfo"); 5675 if (!phba->idiag_que_info) { 5676 phba->idiag_que_info = 5677 debugfs_create_file(name, S_IFREG|S_IRUGO, 5678 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 5679 if (!phba->idiag_que_info) { 5680 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5681 "2924 Can't create idiag debugfs\n"); 5682 goto debug_failed; 5683 } 5684 } 5685 5686 /* iDiag access PCI function queue */ 5687 snprintf(name, sizeof(name), "queAcc"); 5688 if (!phba->idiag_que_acc) { 5689 phba->idiag_que_acc = 5690 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5691 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 5692 if (!phba->idiag_que_acc) { 5693 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5694 "2926 Can't create idiag debugfs\n"); 5695 goto debug_failed; 5696 } 5697 } 5698 5699 /* iDiag access PCI function doorbell registers */ 5700 snprintf(name, sizeof(name), "drbAcc"); 5701 if (!phba->idiag_drb_acc) { 5702 phba->idiag_drb_acc = 5703 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5704 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 5705 if (!phba->idiag_drb_acc) { 5706 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5707 "2927 Can't create idiag debugfs\n"); 5708 goto debug_failed; 5709 } 5710 } 5711 5712 /* iDiag access PCI function control registers */ 5713 snprintf(name, sizeof(name), "ctlAcc"); 5714 if (!phba->idiag_ctl_acc) { 5715 phba->idiag_ctl_acc = 5716 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5717 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 5718 if (!phba->idiag_ctl_acc) { 5719 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5720 "2981 Can't create idiag debugfs\n"); 5721 goto debug_failed; 5722 } 5723 } 5724 5725 /* iDiag access mbox commands */ 5726 snprintf(name, sizeof(name), "mbxAcc"); 5727 if (!phba->idiag_mbx_acc) { 5728 phba->idiag_mbx_acc = 5729 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5730 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 5731 if (!phba->idiag_mbx_acc) { 5732 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5733 "2980 Can't create idiag debugfs\n"); 5734 goto debug_failed; 5735 } 5736 } 5737 5738 /* iDiag extents access commands */ 5739 if (phba->sli4_hba.extents_in_use) { 5740 snprintf(name, sizeof(name), "extAcc"); 5741 if (!phba->idiag_ext_acc) { 5742 phba->idiag_ext_acc = 5743 debugfs_create_file(name, 5744 S_IFREG|S_IRUGO|S_IWUSR, 5745 phba->idiag_root, phba, 5746 &lpfc_idiag_op_extAcc); 5747 if (!phba->idiag_ext_acc) { 5748 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5749 "2986 Cant create " 5750 "idiag debugfs\n"); 5751 goto debug_failed; 5752 } 5753 } 5754 } 5755 5756 debug_failed: 5757 return; 5758 #endif 5759 } 5760 5761 /** 5762 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 5763 * @vport: The vport pointer to remove from debugfs. 5764 * 5765 * Description: 5766 * When Debugfs is configured this routine removes debugfs file system elements 5767 * that are specific to this vport. It also checks to see if there are any 5768 * users left for the debugfs directories associated with the HBA and driver. If 5769 * this is the last user of the HBA directory or driver directory then it will 5770 * remove those from the debugfs infrastructure as well. 5771 **/ 5772 inline void 5773 lpfc_debugfs_terminate(struct lpfc_vport *vport) 5774 { 5775 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5776 struct lpfc_hba *phba = vport->phba; 5777 5778 kfree(vport->disc_trc); 5779 vport->disc_trc = NULL; 5780 5781 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 5782 vport->debug_disc_trc = NULL; 5783 5784 debugfs_remove(vport->debug_nodelist); /* nodelist */ 5785 vport->debug_nodelist = NULL; 5786 5787 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 5788 vport->debug_nvmestat = NULL; 5789 5790 debugfs_remove(vport->debug_nvmektime); /* nvmektime */ 5791 vport->debug_nvmektime = NULL; 5792 5793 debugfs_remove(vport->debug_cpucheck); /* cpucheck */ 5794 vport->debug_cpucheck = NULL; 5795 5796 if (vport->vport_debugfs_root) { 5797 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 5798 vport->vport_debugfs_root = NULL; 5799 atomic_dec(&phba->debugfs_vport_count); 5800 } 5801 5802 if (atomic_read(&phba->debugfs_vport_count) == 0) { 5803 5804 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 5805 phba->debug_hbqinfo = NULL; 5806 5807 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 5808 phba->debug_dumpHBASlim = NULL; 5809 5810 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 5811 phba->debug_dumpHostSlim = NULL; 5812 5813 debugfs_remove(phba->debug_dumpData); /* dumpData */ 5814 phba->debug_dumpData = NULL; 5815 5816 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 5817 phba->debug_dumpDif = NULL; 5818 5819 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 5820 phba->debug_InjErrLBA = NULL; 5821 5822 debugfs_remove(phba->debug_InjErrNPortID); 5823 phba->debug_InjErrNPortID = NULL; 5824 5825 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 5826 phba->debug_InjErrWWPN = NULL; 5827 5828 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 5829 phba->debug_writeGuard = NULL; 5830 5831 debugfs_remove(phba->debug_writeApp); /* writeApp */ 5832 phba->debug_writeApp = NULL; 5833 5834 debugfs_remove(phba->debug_writeRef); /* writeRef */ 5835 phba->debug_writeRef = NULL; 5836 5837 debugfs_remove(phba->debug_readGuard); /* readGuard */ 5838 phba->debug_readGuard = NULL; 5839 5840 debugfs_remove(phba->debug_readApp); /* readApp */ 5841 phba->debug_readApp = NULL; 5842 5843 debugfs_remove(phba->debug_readRef); /* readRef */ 5844 phba->debug_readRef = NULL; 5845 5846 kfree(phba->slow_ring_trc); 5847 phba->slow_ring_trc = NULL; 5848 5849 /* slow_ring_trace */ 5850 debugfs_remove(phba->debug_slow_ring_trc); 5851 phba->debug_slow_ring_trc = NULL; 5852 5853 debugfs_remove(phba->debug_nvmeio_trc); 5854 phba->debug_nvmeio_trc = NULL; 5855 5856 kfree(phba->nvmeio_trc); 5857 phba->nvmeio_trc = NULL; 5858 5859 /* 5860 * iDiag release 5861 */ 5862 if (phba->sli_rev == LPFC_SLI_REV4) { 5863 /* iDiag extAcc */ 5864 debugfs_remove(phba->idiag_ext_acc); 5865 phba->idiag_ext_acc = NULL; 5866 5867 /* iDiag mbxAcc */ 5868 debugfs_remove(phba->idiag_mbx_acc); 5869 phba->idiag_mbx_acc = NULL; 5870 5871 /* iDiag ctlAcc */ 5872 debugfs_remove(phba->idiag_ctl_acc); 5873 phba->idiag_ctl_acc = NULL; 5874 5875 /* iDiag drbAcc */ 5876 debugfs_remove(phba->idiag_drb_acc); 5877 phba->idiag_drb_acc = NULL; 5878 5879 /* iDiag queAcc */ 5880 debugfs_remove(phba->idiag_que_acc); 5881 phba->idiag_que_acc = NULL; 5882 5883 /* iDiag queInfo */ 5884 debugfs_remove(phba->idiag_que_info); 5885 phba->idiag_que_info = NULL; 5886 5887 /* iDiag barAcc */ 5888 debugfs_remove(phba->idiag_bar_acc); 5889 phba->idiag_bar_acc = NULL; 5890 5891 /* iDiag pciCfg */ 5892 debugfs_remove(phba->idiag_pci_cfg); 5893 phba->idiag_pci_cfg = NULL; 5894 5895 /* Finally remove the iDiag debugfs root */ 5896 debugfs_remove(phba->idiag_root); 5897 phba->idiag_root = NULL; 5898 } 5899 5900 if (phba->hba_debugfs_root) { 5901 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 5902 phba->hba_debugfs_root = NULL; 5903 atomic_dec(&lpfc_debugfs_hba_count); 5904 } 5905 5906 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 5907 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 5908 lpfc_debugfs_root = NULL; 5909 } 5910 } 5911 #endif 5912 return; 5913 } 5914 5915 /* 5916 * Driver debug utility routines outside of debugfs. The debug utility 5917 * routines implemented here is intended to be used in the instrumented 5918 * debug driver for debugging host or port issues. 5919 */ 5920 5921 /** 5922 * lpfc_debug_dump_all_queues - dump all the queues with a hba 5923 * @phba: Pointer to HBA context object. 5924 * 5925 * This function dumps entries of all the queues asociated with the @phba. 5926 **/ 5927 void 5928 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 5929 { 5930 int idx; 5931 5932 /* 5933 * Dump Work Queues (WQs) 5934 */ 5935 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 5936 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 5937 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 5938 5939 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5940 lpfc_debug_dump_wq(phba, DUMP_FCP, idx); 5941 5942 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5943 lpfc_debug_dump_wq(phba, DUMP_NVME, idx); 5944 5945 lpfc_debug_dump_hdr_rq(phba); 5946 lpfc_debug_dump_dat_rq(phba); 5947 /* 5948 * Dump Complete Queues (CQs) 5949 */ 5950 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 5951 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 5952 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 5953 5954 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5955 lpfc_debug_dump_cq(phba, DUMP_FCP, idx); 5956 5957 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5958 lpfc_debug_dump_cq(phba, DUMP_NVME, idx); 5959 5960 /* 5961 * Dump Event Queues (EQs) 5962 */ 5963 for (idx = 0; idx < phba->io_channel_irqs; idx++) 5964 lpfc_debug_dump_hba_eq(phba, idx); 5965 } 5966