1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2007-2012 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * * 8 * This program is free software; you can redistribute it and/or * 9 * modify it under the terms of version 2 of the GNU General * 10 * Public License as published by the Free Software Foundation. * 11 * This program is distributed in the hope that it will be useful. * 12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 16 * TO BE LEGALLY INVALID. See the GNU General Public License for * 17 * more details, a copy of which can be found in the file COPYING * 18 * included with this package. * 19 *******************************************************************/ 20 21 #include <linux/blkdev.h> 22 #include <linux/delay.h> 23 #include <linux/module.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/kthread.h> 28 #include <linux/slab.h> 29 #include <linux/pci.h> 30 #include <linux/spinlock.h> 31 #include <linux/ctype.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_transport_fc.h> 37 38 #include "lpfc_hw4.h" 39 #include "lpfc_hw.h" 40 #include "lpfc_sli.h" 41 #include "lpfc_sli4.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_scsi.h" 45 #include "lpfc.h" 46 #include "lpfc_logmsg.h" 47 #include "lpfc_crtn.h" 48 #include "lpfc_vport.h" 49 #include "lpfc_version.h" 50 #include "lpfc_compat.h" 51 #include "lpfc_debugfs.h" 52 #include "lpfc_bsg.h" 53 54 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 55 /* 56 * debugfs interface 57 * 58 * To access this interface the user should: 59 * # mount -t debugfs none /sys/kernel/debug 60 * 61 * The lpfc debugfs directory hierarchy is: 62 * /sys/kernel/debug/lpfc/fnX/vportY 63 * where X is the lpfc hba function unique_id 64 * where Y is the vport VPI on that hba 65 * 66 * Debugging services available per vport: 67 * discovery_trace 68 * This is an ACSII readable file that contains a trace of the last 69 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 70 * See lpfc_debugfs.h for different categories of discovery events. 71 * To enable the discovery trace, the following module parameters must be set: 72 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 73 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 74 * EACH vport. X MUST also be a power of 2. 75 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 76 * lpfc_debugfs.h . 77 * 78 * slow_ring_trace 79 * This is an ACSII readable file that contains a trace of the last 80 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 81 * To enable the slow ring trace, the following module parameters must be set: 82 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 83 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 84 * the HBA. X MUST also be a power of 2. 85 */ 86 static int lpfc_debugfs_enable = 1; 87 module_param(lpfc_debugfs_enable, int, S_IRUGO); 88 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 89 90 /* This MUST be a power of 2 */ 91 static int lpfc_debugfs_max_disc_trc; 92 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 93 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 94 "Set debugfs discovery trace depth"); 95 96 /* This MUST be a power of 2 */ 97 static int lpfc_debugfs_max_slow_ring_trc; 98 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 99 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 100 "Set debugfs slow ring trace depth"); 101 102 static int lpfc_debugfs_mask_disc_trc; 103 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 104 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 105 "Set debugfs discovery trace mask"); 106 107 #include <linux/debugfs.h> 108 109 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 110 static unsigned long lpfc_debugfs_start_time = 0L; 111 112 /* iDiag */ 113 static struct lpfc_idiag idiag; 114 115 /** 116 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 117 * @vport: The vport to gather the log info from. 118 * @buf: The buffer to dump log into. 119 * @size: The maximum amount of data to process. 120 * 121 * Description: 122 * This routine gathers the lpfc discovery debugfs data from the @vport and 123 * dumps it to @buf up to @size number of bytes. It will start at the next entry 124 * in the log and process the log until the end of the buffer. Then it will 125 * gather from the beginning of the log and process until the current entry. 126 * 127 * Notes: 128 * Discovery logging will be disabled while while this routine dumps the log. 129 * 130 * Return Value: 131 * This routine returns the amount of bytes that were dumped into @buf and will 132 * not exceed @size. 133 **/ 134 static int 135 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 136 { 137 int i, index, len, enable; 138 uint32_t ms; 139 struct lpfc_debugfs_trc *dtp; 140 char *buffer; 141 142 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 143 if (!buffer) 144 return 0; 145 146 enable = lpfc_debugfs_enable; 147 lpfc_debugfs_enable = 0; 148 149 len = 0; 150 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 151 (lpfc_debugfs_max_disc_trc - 1); 152 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 153 dtp = vport->disc_trc + i; 154 if (!dtp->fmt) 155 continue; 156 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 157 snprintf(buffer, 158 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 159 dtp->seq_cnt, ms, dtp->fmt); 160 len += snprintf(buf+len, size-len, buffer, 161 dtp->data1, dtp->data2, dtp->data3); 162 } 163 for (i = 0; i < index; i++) { 164 dtp = vport->disc_trc + i; 165 if (!dtp->fmt) 166 continue; 167 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 168 snprintf(buffer, 169 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 170 dtp->seq_cnt, ms, dtp->fmt); 171 len += snprintf(buf+len, size-len, buffer, 172 dtp->data1, dtp->data2, dtp->data3); 173 } 174 175 lpfc_debugfs_enable = enable; 176 kfree(buffer); 177 178 return len; 179 } 180 181 /** 182 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 183 * @phba: The HBA to gather the log info from. 184 * @buf: The buffer to dump log into. 185 * @size: The maximum amount of data to process. 186 * 187 * Description: 188 * This routine gathers the lpfc slow ring debugfs data from the @phba and 189 * dumps it to @buf up to @size number of bytes. It will start at the next entry 190 * in the log and process the log until the end of the buffer. Then it will 191 * gather from the beginning of the log and process until the current entry. 192 * 193 * Notes: 194 * Slow ring logging will be disabled while while this routine dumps the log. 195 * 196 * Return Value: 197 * This routine returns the amount of bytes that were dumped into @buf and will 198 * not exceed @size. 199 **/ 200 static int 201 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 202 { 203 int i, index, len, enable; 204 uint32_t ms; 205 struct lpfc_debugfs_trc *dtp; 206 char *buffer; 207 208 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 209 if (!buffer) 210 return 0; 211 212 enable = lpfc_debugfs_enable; 213 lpfc_debugfs_enable = 0; 214 215 len = 0; 216 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 217 (lpfc_debugfs_max_slow_ring_trc - 1); 218 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 219 dtp = phba->slow_ring_trc + i; 220 if (!dtp->fmt) 221 continue; 222 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 223 snprintf(buffer, 224 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 225 dtp->seq_cnt, ms, dtp->fmt); 226 len += snprintf(buf+len, size-len, buffer, 227 dtp->data1, dtp->data2, dtp->data3); 228 } 229 for (i = 0; i < index; i++) { 230 dtp = phba->slow_ring_trc + i; 231 if (!dtp->fmt) 232 continue; 233 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 234 snprintf(buffer, 235 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 236 dtp->seq_cnt, ms, dtp->fmt); 237 len += snprintf(buf+len, size-len, buffer, 238 dtp->data1, dtp->data2, dtp->data3); 239 } 240 241 lpfc_debugfs_enable = enable; 242 kfree(buffer); 243 244 return len; 245 } 246 247 static int lpfc_debugfs_last_hbq = -1; 248 249 /** 250 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 251 * @phba: The HBA to gather host buffer info from. 252 * @buf: The buffer to dump log into. 253 * @size: The maximum amount of data to process. 254 * 255 * Description: 256 * This routine dumps the host buffer queue info from the @phba to @buf up to 257 * @size number of bytes. A header that describes the current hbq state will be 258 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 259 * until @size bytes have been dumped or all the hbq info has been dumped. 260 * 261 * Notes: 262 * This routine will rotate through each configured HBQ each time called. 263 * 264 * Return Value: 265 * This routine returns the amount of bytes that were dumped into @buf and will 266 * not exceed @size. 267 **/ 268 static int 269 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 270 { 271 int len = 0; 272 int cnt, i, j, found, posted, low; 273 uint32_t phys, raw_index, getidx; 274 struct lpfc_hbq_init *hip; 275 struct hbq_s *hbqs; 276 struct lpfc_hbq_entry *hbqe; 277 struct lpfc_dmabuf *d_buf; 278 struct hbq_dmabuf *hbq_buf; 279 280 if (phba->sli_rev != 3) 281 return 0; 282 cnt = LPFC_HBQINFO_SIZE; 283 spin_lock_irq(&phba->hbalock); 284 285 /* toggle between multiple hbqs, if any */ 286 i = lpfc_sli_hbq_count(); 287 if (i > 1) { 288 lpfc_debugfs_last_hbq++; 289 if (lpfc_debugfs_last_hbq >= i) 290 lpfc_debugfs_last_hbq = 0; 291 } 292 else 293 lpfc_debugfs_last_hbq = 0; 294 295 i = lpfc_debugfs_last_hbq; 296 297 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); 298 299 hbqs = &phba->hbqs[i]; 300 posted = 0; 301 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 302 posted++; 303 304 hip = lpfc_hbq_defs[i]; 305 len += snprintf(buf+len, size-len, 306 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 307 hip->hbq_index, hip->profile, hip->rn, 308 hip->buffer_count, hip->init_count, hip->add_count, posted); 309 310 raw_index = phba->hbq_get[i]; 311 getidx = le32_to_cpu(raw_index); 312 len += snprintf(buf+len, size-len, 313 "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 314 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 315 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 316 317 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 318 for (j=0; j<hbqs->entry_count; j++) { 319 len += snprintf(buf+len, size-len, 320 "%03d: %08x %04x %05x ", j, 321 le32_to_cpu(hbqe->bde.addrLow), 322 le32_to_cpu(hbqe->bde.tus.w), 323 le32_to_cpu(hbqe->buffer_tag)); 324 i = 0; 325 found = 0; 326 327 /* First calculate if slot has an associated posted buffer */ 328 low = hbqs->hbqPutIdx - posted; 329 if (low >= 0) { 330 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 331 len += snprintf(buf+len, size-len, "Unused\n"); 332 goto skipit; 333 } 334 } 335 else { 336 if ((j >= hbqs->hbqPutIdx) && 337 (j < (hbqs->entry_count+low))) { 338 len += snprintf(buf+len, size-len, "Unused\n"); 339 goto skipit; 340 } 341 } 342 343 /* Get the Buffer info for the posted buffer */ 344 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 345 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 346 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 347 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 348 len += snprintf(buf+len, size-len, 349 "Buf%d: %p %06x\n", i, 350 hbq_buf->dbuf.virt, hbq_buf->tag); 351 found = 1; 352 break; 353 } 354 i++; 355 } 356 if (!found) { 357 len += snprintf(buf+len, size-len, "No DMAinfo?\n"); 358 } 359 skipit: 360 hbqe++; 361 if (len > LPFC_HBQINFO_SIZE - 54) 362 break; 363 } 364 spin_unlock_irq(&phba->hbalock); 365 return len; 366 } 367 368 static int lpfc_debugfs_last_hba_slim_off; 369 370 /** 371 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 372 * @phba: The HBA to gather SLIM info from. 373 * @buf: The buffer to dump log into. 374 * @size: The maximum amount of data to process. 375 * 376 * Description: 377 * This routine dumps the current contents of HBA SLIM for the HBA associated 378 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 379 * 380 * Notes: 381 * This routine will only dump up to 1024 bytes of data each time called and 382 * should be called multiple times to dump the entire HBA SLIM. 383 * 384 * Return Value: 385 * This routine returns the amount of bytes that were dumped into @buf and will 386 * not exceed @size. 387 **/ 388 static int 389 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 390 { 391 int len = 0; 392 int i, off; 393 uint32_t *ptr; 394 char *buffer; 395 396 buffer = kmalloc(1024, GFP_KERNEL); 397 if (!buffer) 398 return 0; 399 400 off = 0; 401 spin_lock_irq(&phba->hbalock); 402 403 len += snprintf(buf+len, size-len, "HBA SLIM\n"); 404 lpfc_memcpy_from_slim(buffer, 405 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 406 407 ptr = (uint32_t *)&buffer[0]; 408 off = lpfc_debugfs_last_hba_slim_off; 409 410 /* Set it up for the next time */ 411 lpfc_debugfs_last_hba_slim_off += 1024; 412 if (lpfc_debugfs_last_hba_slim_off >= 4096) 413 lpfc_debugfs_last_hba_slim_off = 0; 414 415 i = 1024; 416 while (i > 0) { 417 len += snprintf(buf+len, size-len, 418 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 419 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 420 *(ptr+5), *(ptr+6), *(ptr+7)); 421 ptr += 8; 422 i -= (8 * sizeof(uint32_t)); 423 off += (8 * sizeof(uint32_t)); 424 } 425 426 spin_unlock_irq(&phba->hbalock); 427 kfree(buffer); 428 429 return len; 430 } 431 432 /** 433 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 434 * @phba: The HBA to gather Host SLIM info from. 435 * @buf: The buffer to dump log into. 436 * @size: The maximum amount of data to process. 437 * 438 * Description: 439 * This routine dumps the current contents of host SLIM for the host associated 440 * with @phba to @buf up to @size bytes of data. The dump will contain the 441 * Mailbox, PCB, Rings, and Registers that are located in host memory. 442 * 443 * Return Value: 444 * This routine returns the amount of bytes that were dumped into @buf and will 445 * not exceed @size. 446 **/ 447 static int 448 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 449 { 450 int len = 0; 451 int i, off; 452 uint32_t word0, word1, word2, word3; 453 uint32_t *ptr; 454 struct lpfc_pgp *pgpp; 455 struct lpfc_sli *psli = &phba->sli; 456 struct lpfc_sli_ring *pring; 457 458 off = 0; 459 spin_lock_irq(&phba->hbalock); 460 461 len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); 462 ptr = (uint32_t *)phba->slim2p.virt; 463 i = sizeof(MAILBOX_t); 464 while (i > 0) { 465 len += snprintf(buf+len, size-len, 466 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 467 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 468 *(ptr+5), *(ptr+6), *(ptr+7)); 469 ptr += 8; 470 i -= (8 * sizeof(uint32_t)); 471 off += (8 * sizeof(uint32_t)); 472 } 473 474 len += snprintf(buf+len, size-len, "SLIM PCB\n"); 475 ptr = (uint32_t *)phba->pcb; 476 i = sizeof(PCB_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 for (i = 0; i < 4; i++) { 488 pgpp = &phba->port_gp[i]; 489 pring = &psli->ring[i]; 490 len += snprintf(buf+len, size-len, 491 "Ring %d: CMD GetInx:%d (Max:%d Next:%d " 492 "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n", 493 i, pgpp->cmdGetInx, pring->sli.sli3.numCiocb, 494 pring->sli.sli3.next_cmdidx, 495 pring->sli.sli3.local_getidx, 496 pring->flag, pgpp->rspPutInx, 497 pring->sli.sli3.numRiocb); 498 } 499 500 if (phba->sli_rev <= LPFC_SLI_REV3) { 501 word0 = readl(phba->HAregaddr); 502 word1 = readl(phba->CAregaddr); 503 word2 = readl(phba->HSregaddr); 504 word3 = readl(phba->HCregaddr); 505 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 506 "HC:%08x\n", word0, word1, word2, word3); 507 } 508 spin_unlock_irq(&phba->hbalock); 509 return len; 510 } 511 512 /** 513 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 514 * @vport: The vport to gather target node info from. 515 * @buf: The buffer to dump log into. 516 * @size: The maximum amount of data to process. 517 * 518 * Description: 519 * This routine dumps the current target node list associated with @vport to 520 * @buf up to @size bytes of data. Each node entry in the dump will contain a 521 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 522 * 523 * Return Value: 524 * This routine returns the amount of bytes that were dumped into @buf and will 525 * not exceed @size. 526 **/ 527 static int 528 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 529 { 530 int len = 0; 531 int cnt; 532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 533 struct lpfc_nodelist *ndlp; 534 unsigned char *statep, *name; 535 536 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 537 538 spin_lock_irq(shost->host_lock); 539 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 540 if (!cnt) { 541 len += snprintf(buf+len, size-len, 542 "Missing Nodelist Entries\n"); 543 break; 544 } 545 cnt--; 546 switch (ndlp->nlp_state) { 547 case NLP_STE_UNUSED_NODE: 548 statep = "UNUSED"; 549 break; 550 case NLP_STE_PLOGI_ISSUE: 551 statep = "PLOGI "; 552 break; 553 case NLP_STE_ADISC_ISSUE: 554 statep = "ADISC "; 555 break; 556 case NLP_STE_REG_LOGIN_ISSUE: 557 statep = "REGLOG"; 558 break; 559 case NLP_STE_PRLI_ISSUE: 560 statep = "PRLI "; 561 break; 562 case NLP_STE_LOGO_ISSUE: 563 statep = "LOGO "; 564 break; 565 case NLP_STE_UNMAPPED_NODE: 566 statep = "UNMAP "; 567 break; 568 case NLP_STE_MAPPED_NODE: 569 statep = "MAPPED"; 570 break; 571 case NLP_STE_NPR_NODE: 572 statep = "NPR "; 573 break; 574 default: 575 statep = "UNKNOWN"; 576 } 577 len += snprintf(buf+len, size-len, "%s DID:x%06x ", 578 statep, ndlp->nlp_DID); 579 name = (unsigned char *)&ndlp->nlp_portname; 580 len += snprintf(buf+len, size-len, 581 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", 582 *name, *(name+1), *(name+2), *(name+3), 583 *(name+4), *(name+5), *(name+6), *(name+7)); 584 name = (unsigned char *)&ndlp->nlp_nodename; 585 len += snprintf(buf+len, size-len, 586 "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", 587 *name, *(name+1), *(name+2), *(name+3), 588 *(name+4), *(name+5), *(name+6), *(name+7)); 589 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 590 len += snprintf(buf+len, size-len, "RPI:%03d ", 591 ndlp->nlp_rpi); 592 else 593 len += snprintf(buf+len, size-len, "RPI:none "); 594 len += snprintf(buf+len, size-len, "flag:x%08x ", 595 ndlp->nlp_flag); 596 if (!ndlp->nlp_type) 597 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); 598 if (ndlp->nlp_type & NLP_FC_NODE) 599 len += snprintf(buf+len, size-len, "FC_NODE "); 600 if (ndlp->nlp_type & NLP_FABRIC) 601 len += snprintf(buf+len, size-len, "FABRIC "); 602 if (ndlp->nlp_type & NLP_FCP_TARGET) 603 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", 604 ndlp->nlp_sid); 605 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 606 len += snprintf(buf+len, size-len, "FCP_INITIATOR "); 607 len += snprintf(buf+len, size-len, "usgmap:%x ", 608 ndlp->nlp_usg_map); 609 len += snprintf(buf+len, size-len, "refcnt:%x", 610 atomic_read(&ndlp->kref.refcount)); 611 len += snprintf(buf+len, size-len, "\n"); 612 } 613 spin_unlock_irq(shost->host_lock); 614 return len; 615 } 616 #endif 617 618 /** 619 * lpfc_debugfs_disc_trc - Store discovery trace log 620 * @vport: The vport to associate this trace string with for retrieval. 621 * @mask: Log entry classification. 622 * @fmt: Format string to be displayed when dumping the log. 623 * @data1: 1st data parameter to be applied to @fmt. 624 * @data2: 2nd data parameter to be applied to @fmt. 625 * @data3: 3rd data parameter to be applied to @fmt. 626 * 627 * Description: 628 * This routine is used by the driver code to add a debugfs log entry to the 629 * discovery trace buffer associated with @vport. Only entries with a @mask that 630 * match the current debugfs discovery mask will be saved. Entries that do not 631 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 632 * printf when displaying the log. 633 **/ 634 inline void 635 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 636 uint32_t data1, uint32_t data2, uint32_t data3) 637 { 638 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 639 struct lpfc_debugfs_trc *dtp; 640 int index; 641 642 if (!(lpfc_debugfs_mask_disc_trc & mask)) 643 return; 644 645 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 646 !vport || !vport->disc_trc) 647 return; 648 649 index = atomic_inc_return(&vport->disc_trc_cnt) & 650 (lpfc_debugfs_max_disc_trc - 1); 651 dtp = vport->disc_trc + index; 652 dtp->fmt = fmt; 653 dtp->data1 = data1; 654 dtp->data2 = data2; 655 dtp->data3 = data3; 656 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 657 dtp->jif = jiffies; 658 #endif 659 return; 660 } 661 662 /** 663 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 664 * @phba: The phba to associate this trace string with for retrieval. 665 * @fmt: Format string to be displayed when dumping the log. 666 * @data1: 1st data parameter to be applied to @fmt. 667 * @data2: 2nd data parameter to be applied to @fmt. 668 * @data3: 3rd data parameter to be applied to @fmt. 669 * 670 * Description: 671 * This routine is used by the driver code to add a debugfs log entry to the 672 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 673 * @data3 are used like printf when displaying the log. 674 **/ 675 inline void 676 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 677 uint32_t data1, uint32_t data2, uint32_t data3) 678 { 679 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 680 struct lpfc_debugfs_trc *dtp; 681 int index; 682 683 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 684 !phba || !phba->slow_ring_trc) 685 return; 686 687 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 688 (lpfc_debugfs_max_slow_ring_trc - 1); 689 dtp = phba->slow_ring_trc + index; 690 dtp->fmt = fmt; 691 dtp->data1 = data1; 692 dtp->data2 = data2; 693 dtp->data3 = data3; 694 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 695 dtp->jif = jiffies; 696 #endif 697 return; 698 } 699 700 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 701 /** 702 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 703 * @inode: The inode pointer that contains a vport pointer. 704 * @file: The file pointer to attach the log output. 705 * 706 * Description: 707 * This routine is the entry point for the debugfs open file operation. It gets 708 * the vport from the i_private field in @inode, allocates the necessary buffer 709 * for the log, fills the buffer from the in-memory log for this vport, and then 710 * returns a pointer to that log in the private_data field in @file. 711 * 712 * Returns: 713 * This function returns zero if successful. On error it will return an negative 714 * error value. 715 **/ 716 static int 717 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 718 { 719 struct lpfc_vport *vport = inode->i_private; 720 struct lpfc_debug *debug; 721 int size; 722 int rc = -ENOMEM; 723 724 if (!lpfc_debugfs_max_disc_trc) { 725 rc = -ENOSPC; 726 goto out; 727 } 728 729 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 730 if (!debug) 731 goto out; 732 733 /* Round to page boundary */ 734 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 735 size = PAGE_ALIGN(size); 736 737 debug->buffer = kmalloc(size, GFP_KERNEL); 738 if (!debug->buffer) { 739 kfree(debug); 740 goto out; 741 } 742 743 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 744 file->private_data = debug; 745 746 rc = 0; 747 out: 748 return rc; 749 } 750 751 /** 752 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 753 * @inode: The inode pointer that contains a vport pointer. 754 * @file: The file pointer to attach the log output. 755 * 756 * Description: 757 * This routine is the entry point for the debugfs open file operation. It gets 758 * the vport from the i_private field in @inode, allocates the necessary buffer 759 * for the log, fills the buffer from the in-memory log for this vport, and then 760 * returns a pointer to that log in the private_data field in @file. 761 * 762 * Returns: 763 * This function returns zero if successful. On error it will return an negative 764 * error value. 765 **/ 766 static int 767 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 768 { 769 struct lpfc_hba *phba = inode->i_private; 770 struct lpfc_debug *debug; 771 int size; 772 int rc = -ENOMEM; 773 774 if (!lpfc_debugfs_max_slow_ring_trc) { 775 rc = -ENOSPC; 776 goto out; 777 } 778 779 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 780 if (!debug) 781 goto out; 782 783 /* Round to page boundary */ 784 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 785 size = PAGE_ALIGN(size); 786 787 debug->buffer = kmalloc(size, GFP_KERNEL); 788 if (!debug->buffer) { 789 kfree(debug); 790 goto out; 791 } 792 793 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 794 file->private_data = debug; 795 796 rc = 0; 797 out: 798 return rc; 799 } 800 801 /** 802 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 803 * @inode: The inode pointer that contains a vport pointer. 804 * @file: The file pointer to attach the log output. 805 * 806 * Description: 807 * This routine is the entry point for the debugfs open file operation. It gets 808 * the vport from the i_private field in @inode, allocates the necessary buffer 809 * for the log, fills the buffer from the in-memory log for this vport, and then 810 * returns a pointer to that log in the private_data field in @file. 811 * 812 * Returns: 813 * This function returns zero if successful. On error it will return an negative 814 * error value. 815 **/ 816 static int 817 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 818 { 819 struct lpfc_hba *phba = inode->i_private; 820 struct lpfc_debug *debug; 821 int rc = -ENOMEM; 822 823 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 824 if (!debug) 825 goto out; 826 827 /* Round to page boundary */ 828 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 829 if (!debug->buffer) { 830 kfree(debug); 831 goto out; 832 } 833 834 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 835 LPFC_HBQINFO_SIZE); 836 file->private_data = debug; 837 838 rc = 0; 839 out: 840 return rc; 841 } 842 843 /** 844 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 845 * @inode: The inode pointer that contains a vport pointer. 846 * @file: The file pointer to attach the log output. 847 * 848 * Description: 849 * This routine is the entry point for the debugfs open file operation. It gets 850 * the vport from the i_private field in @inode, allocates the necessary buffer 851 * for the log, fills the buffer from the in-memory log for this vport, and then 852 * returns a pointer to that log in the private_data field in @file. 853 * 854 * Returns: 855 * This function returns zero if successful. On error it will return an negative 856 * error value. 857 **/ 858 static int 859 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 860 { 861 struct lpfc_hba *phba = inode->i_private; 862 struct lpfc_debug *debug; 863 int rc = -ENOMEM; 864 865 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 866 if (!debug) 867 goto out; 868 869 /* Round to page boundary */ 870 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 871 if (!debug->buffer) { 872 kfree(debug); 873 goto out; 874 } 875 876 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 877 LPFC_DUMPHBASLIM_SIZE); 878 file->private_data = debug; 879 880 rc = 0; 881 out: 882 return rc; 883 } 884 885 /** 886 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 887 * @inode: The inode pointer that contains a vport pointer. 888 * @file: The file pointer to attach the log output. 889 * 890 * Description: 891 * This routine is the entry point for the debugfs open file operation. It gets 892 * the vport from the i_private field in @inode, allocates the necessary buffer 893 * for the log, fills the buffer from the in-memory log for this vport, and then 894 * returns a pointer to that log in the private_data field in @file. 895 * 896 * Returns: 897 * This function returns zero if successful. On error it will return an negative 898 * error value. 899 **/ 900 static int 901 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 902 { 903 struct lpfc_hba *phba = inode->i_private; 904 struct lpfc_debug *debug; 905 int rc = -ENOMEM; 906 907 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 908 if (!debug) 909 goto out; 910 911 /* Round to page boundary */ 912 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 913 if (!debug->buffer) { 914 kfree(debug); 915 goto out; 916 } 917 918 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 919 LPFC_DUMPHOSTSLIM_SIZE); 920 file->private_data = debug; 921 922 rc = 0; 923 out: 924 return rc; 925 } 926 927 static int 928 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) 929 { 930 struct lpfc_debug *debug; 931 int rc = -ENOMEM; 932 933 if (!_dump_buf_data) 934 return -EBUSY; 935 936 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 937 if (!debug) 938 goto out; 939 940 /* Round to page boundary */ 941 printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n", 942 __func__, _dump_buf_data); 943 debug->buffer = _dump_buf_data; 944 if (!debug->buffer) { 945 kfree(debug); 946 goto out; 947 } 948 949 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; 950 file->private_data = debug; 951 952 rc = 0; 953 out: 954 return rc; 955 } 956 957 static int 958 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) 959 { 960 struct lpfc_debug *debug; 961 int rc = -ENOMEM; 962 963 if (!_dump_buf_dif) 964 return -EBUSY; 965 966 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 967 if (!debug) 968 goto out; 969 970 /* Round to page boundary */ 971 printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n", 972 __func__, _dump_buf_dif, file->f_dentry->d_name.name); 973 debug->buffer = _dump_buf_dif; 974 if (!debug->buffer) { 975 kfree(debug); 976 goto out; 977 } 978 979 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; 980 file->private_data = debug; 981 982 rc = 0; 983 out: 984 return rc; 985 } 986 987 static ssize_t 988 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, 989 size_t nbytes, loff_t *ppos) 990 { 991 /* 992 * The Data/DIF buffers only save one failing IO 993 * The write op is used as a reset mechanism after an IO has 994 * already been saved to the next one can be saved 995 */ 996 spin_lock(&_dump_buf_lock); 997 998 memset((void *)_dump_buf_data, 0, 999 ((1 << PAGE_SHIFT) << _dump_buf_data_order)); 1000 memset((void *)_dump_buf_dif, 0, 1001 ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); 1002 1003 _dump_buf_done = 0; 1004 1005 spin_unlock(&_dump_buf_lock); 1006 1007 return nbytes; 1008 } 1009 1010 static ssize_t 1011 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 1012 size_t nbytes, loff_t *ppos) 1013 { 1014 struct dentry *dent = file->f_dentry; 1015 struct lpfc_hba *phba = file->private_data; 1016 char cbuf[32]; 1017 uint64_t tmp = 0; 1018 int cnt = 0; 1019 1020 if (dent == phba->debug_writeGuard) 1021 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 1022 else if (dent == phba->debug_writeApp) 1023 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 1024 else if (dent == phba->debug_writeRef) 1025 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 1026 else if (dent == phba->debug_readGuard) 1027 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 1028 else if (dent == phba->debug_readApp) 1029 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 1030 else if (dent == phba->debug_readRef) 1031 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 1032 else if (dent == phba->debug_InjErrNPortID) 1033 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); 1034 else if (dent == phba->debug_InjErrWWPN) { 1035 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 1036 tmp = cpu_to_be64(tmp); 1037 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); 1038 } else if (dent == phba->debug_InjErrLBA) { 1039 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 1040 cnt = snprintf(cbuf, 32, "off\n"); 1041 else 1042 cnt = snprintf(cbuf, 32, "0x%llx\n", 1043 (uint64_t) phba->lpfc_injerr_lba); 1044 } else 1045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1046 "0547 Unknown debugfs error injection entry\n"); 1047 1048 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 1049 } 1050 1051 static ssize_t 1052 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 1053 size_t nbytes, loff_t *ppos) 1054 { 1055 struct dentry *dent = file->f_dentry; 1056 struct lpfc_hba *phba = file->private_data; 1057 char dstbuf[32]; 1058 uint64_t tmp = 0; 1059 int size; 1060 1061 memset(dstbuf, 0, 32); 1062 size = (nbytes < 32) ? nbytes : 32; 1063 if (copy_from_user(dstbuf, buf, size)) 1064 return 0; 1065 1066 if (dent == phba->debug_InjErrLBA) { 1067 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 1068 tmp = (uint64_t)(-1); 1069 } 1070 1071 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 1072 return 0; 1073 1074 if (dent == phba->debug_writeGuard) 1075 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 1076 else if (dent == phba->debug_writeApp) 1077 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 1078 else if (dent == phba->debug_writeRef) 1079 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 1080 else if (dent == phba->debug_readGuard) 1081 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 1082 else if (dent == phba->debug_readApp) 1083 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 1084 else if (dent == phba->debug_readRef) 1085 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 1086 else if (dent == phba->debug_InjErrLBA) 1087 phba->lpfc_injerr_lba = (sector_t)tmp; 1088 else if (dent == phba->debug_InjErrNPortID) 1089 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 1090 else if (dent == phba->debug_InjErrWWPN) { 1091 tmp = cpu_to_be64(tmp); 1092 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 1093 } else 1094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1095 "0548 Unknown debugfs error injection entry\n"); 1096 1097 return nbytes; 1098 } 1099 1100 static int 1101 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 1102 { 1103 return 0; 1104 } 1105 1106 /** 1107 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 1108 * @inode: The inode pointer that contains a vport pointer. 1109 * @file: The file pointer to attach the log output. 1110 * 1111 * Description: 1112 * This routine is the entry point for the debugfs open file operation. It gets 1113 * the vport from the i_private field in @inode, allocates the necessary buffer 1114 * for the log, fills the buffer from the in-memory log for this vport, and then 1115 * returns a pointer to that log in the private_data field in @file. 1116 * 1117 * Returns: 1118 * This function returns zero if successful. On error it will return an negative 1119 * error value. 1120 **/ 1121 static int 1122 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 1123 { 1124 struct lpfc_vport *vport = inode->i_private; 1125 struct lpfc_debug *debug; 1126 int rc = -ENOMEM; 1127 1128 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1129 if (!debug) 1130 goto out; 1131 1132 /* Round to page boundary */ 1133 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 1134 if (!debug->buffer) { 1135 kfree(debug); 1136 goto out; 1137 } 1138 1139 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 1140 LPFC_NODELIST_SIZE); 1141 file->private_data = debug; 1142 1143 rc = 0; 1144 out: 1145 return rc; 1146 } 1147 1148 /** 1149 * lpfc_debugfs_lseek - Seek through a debugfs file 1150 * @file: The file pointer to seek through. 1151 * @off: The offset to seek to or the amount to seek by. 1152 * @whence: Indicates how to seek. 1153 * 1154 * Description: 1155 * This routine is the entry point for the debugfs lseek file operation. The 1156 * @whence parameter indicates whether @off is the offset to directly seek to, 1157 * or if it is a value to seek forward or reverse by. This function figures out 1158 * what the new offset of the debugfs file will be and assigns that value to the 1159 * f_pos field of @file. 1160 * 1161 * Returns: 1162 * This function returns the new offset if successful and returns a negative 1163 * error if unable to process the seek. 1164 **/ 1165 static loff_t 1166 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 1167 { 1168 struct lpfc_debug *debug; 1169 loff_t pos = -1; 1170 1171 debug = file->private_data; 1172 1173 switch (whence) { 1174 case 0: 1175 pos = off; 1176 break; 1177 case 1: 1178 pos = file->f_pos + off; 1179 break; 1180 case 2: 1181 pos = debug->len - off; 1182 } 1183 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); 1184 } 1185 1186 /** 1187 * lpfc_debugfs_read - Read a debugfs file 1188 * @file: The file pointer to read from. 1189 * @buf: The buffer to copy the data to. 1190 * @nbytes: The number of bytes to read. 1191 * @ppos: The position in the file to start reading from. 1192 * 1193 * Description: 1194 * This routine reads data from from the buffer indicated in the private_data 1195 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1196 * data to @buf. 1197 * 1198 * Returns: 1199 * This function returns the amount of data that was read (this could be less 1200 * than @nbytes if the end of the file was reached) or a negative error value. 1201 **/ 1202 static ssize_t 1203 lpfc_debugfs_read(struct file *file, char __user *buf, 1204 size_t nbytes, loff_t *ppos) 1205 { 1206 struct lpfc_debug *debug = file->private_data; 1207 1208 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1209 debug->len); 1210 } 1211 1212 /** 1213 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1214 * @inode: The inode pointer that contains a vport pointer. (unused) 1215 * @file: The file pointer that contains the buffer to release. 1216 * 1217 * Description: 1218 * This routine frees the buffer that was allocated when the debugfs file was 1219 * opened. 1220 * 1221 * Returns: 1222 * This function returns zero. 1223 **/ 1224 static int 1225 lpfc_debugfs_release(struct inode *inode, struct file *file) 1226 { 1227 struct lpfc_debug *debug = file->private_data; 1228 1229 kfree(debug->buffer); 1230 kfree(debug); 1231 1232 return 0; 1233 } 1234 1235 static int 1236 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1237 { 1238 struct lpfc_debug *debug = file->private_data; 1239 1240 debug->buffer = NULL; 1241 kfree(debug); 1242 1243 return 0; 1244 } 1245 1246 /* 1247 * --------------------------------- 1248 * iDiag debugfs file access methods 1249 * --------------------------------- 1250 * 1251 * All access methods are through the proper SLI4 PCI function's debugfs 1252 * iDiag directory: 1253 * 1254 * /sys/kernel/debug/lpfc/fn<#>/iDiag 1255 */ 1256 1257 /** 1258 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 1259 * @buf: The pointer to the user space buffer. 1260 * @nbytes: The number of bytes in the user space buffer. 1261 * @idiag_cmd: pointer to the idiag command struct. 1262 * 1263 * This routine reads data from debugfs user space buffer and parses the 1264 * buffer for getting the idiag command and arguments. The while space in 1265 * between the set of data is used as the parsing separator. 1266 * 1267 * This routine returns 0 when successful, it returns proper error code 1268 * back to the user space in error conditions. 1269 */ 1270 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 1271 struct lpfc_idiag_cmd *idiag_cmd) 1272 { 1273 char mybuf[64]; 1274 char *pbuf, *step_str; 1275 int i; 1276 size_t bsize; 1277 1278 /* Protect copy from user */ 1279 if (!access_ok(VERIFY_READ, buf, nbytes)) 1280 return -EFAULT; 1281 1282 memset(mybuf, 0, sizeof(mybuf)); 1283 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 1284 bsize = min(nbytes, (sizeof(mybuf)-1)); 1285 1286 if (copy_from_user(mybuf, buf, bsize)) 1287 return -EFAULT; 1288 pbuf = &mybuf[0]; 1289 step_str = strsep(&pbuf, "\t "); 1290 1291 /* The opcode must present */ 1292 if (!step_str) 1293 return -EINVAL; 1294 1295 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 1296 if (idiag_cmd->opcode == 0) 1297 return -EINVAL; 1298 1299 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 1300 step_str = strsep(&pbuf, "\t "); 1301 if (!step_str) 1302 return i; 1303 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 1304 } 1305 return i; 1306 } 1307 1308 /** 1309 * lpfc_idiag_open - idiag open debugfs 1310 * @inode: The inode pointer that contains a pointer to phba. 1311 * @file: The file pointer to attach the file operation. 1312 * 1313 * Description: 1314 * This routine is the entry point for the debugfs open file operation. It 1315 * gets the reference to phba from the i_private field in @inode, it then 1316 * allocates buffer for the file operation, performs the necessary PCI config 1317 * space read into the allocated buffer according to the idiag user command 1318 * setup, and then returns a pointer to buffer in the private_data field in 1319 * @file. 1320 * 1321 * Returns: 1322 * This function returns zero if successful. On error it will return an 1323 * negative error value. 1324 **/ 1325 static int 1326 lpfc_idiag_open(struct inode *inode, struct file *file) 1327 { 1328 struct lpfc_debug *debug; 1329 1330 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1331 if (!debug) 1332 return -ENOMEM; 1333 1334 debug->i_private = inode->i_private; 1335 debug->buffer = NULL; 1336 file->private_data = debug; 1337 1338 return 0; 1339 } 1340 1341 /** 1342 * lpfc_idiag_release - Release idiag access file operation 1343 * @inode: The inode pointer that contains a vport pointer. (unused) 1344 * @file: The file pointer that contains the buffer to release. 1345 * 1346 * Description: 1347 * This routine is the generic release routine for the idiag access file 1348 * operation, it frees the buffer that was allocated when the debugfs file 1349 * was opened. 1350 * 1351 * Returns: 1352 * This function returns zero. 1353 **/ 1354 static int 1355 lpfc_idiag_release(struct inode *inode, struct file *file) 1356 { 1357 struct lpfc_debug *debug = file->private_data; 1358 1359 /* Free the buffers to the file operation */ 1360 kfree(debug->buffer); 1361 kfree(debug); 1362 1363 return 0; 1364 } 1365 1366 /** 1367 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 1368 * @inode: The inode pointer that contains a vport pointer. (unused) 1369 * @file: The file pointer that contains the buffer to release. 1370 * 1371 * Description: 1372 * This routine frees the buffer that was allocated when the debugfs file 1373 * was opened. It also reset the fields in the idiag command struct in the 1374 * case of command for write operation. 1375 * 1376 * Returns: 1377 * This function returns zero. 1378 **/ 1379 static int 1380 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 1381 { 1382 struct lpfc_debug *debug = file->private_data; 1383 1384 if (debug->op == LPFC_IDIAG_OP_WR) { 1385 switch (idiag.cmd.opcode) { 1386 case LPFC_IDIAG_CMD_PCICFG_WR: 1387 case LPFC_IDIAG_CMD_PCICFG_ST: 1388 case LPFC_IDIAG_CMD_PCICFG_CL: 1389 case LPFC_IDIAG_CMD_QUEACC_WR: 1390 case LPFC_IDIAG_CMD_QUEACC_ST: 1391 case LPFC_IDIAG_CMD_QUEACC_CL: 1392 memset(&idiag, 0, sizeof(idiag)); 1393 break; 1394 default: 1395 break; 1396 } 1397 } 1398 1399 /* Free the buffers to the file operation */ 1400 kfree(debug->buffer); 1401 kfree(debug); 1402 1403 return 0; 1404 } 1405 1406 /** 1407 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 1408 * @file: The file pointer to read from. 1409 * @buf: The buffer to copy the data to. 1410 * @nbytes: The number of bytes to read. 1411 * @ppos: The position in the file to start reading from. 1412 * 1413 * Description: 1414 * This routine reads data from the @phba pci config space according to the 1415 * idiag command, and copies to user @buf. Depending on the PCI config space 1416 * read command setup, it does either a single register read of a byte 1417 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 1418 * registers from the 4K extended PCI config space. 1419 * 1420 * Returns: 1421 * This function returns the amount of data that was read (this could be less 1422 * than @nbytes if the end of the file was reached) or a negative error value. 1423 **/ 1424 static ssize_t 1425 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 1426 loff_t *ppos) 1427 { 1428 struct lpfc_debug *debug = file->private_data; 1429 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1430 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 1431 int where, count; 1432 char *pbuffer; 1433 struct pci_dev *pdev; 1434 uint32_t u32val; 1435 uint16_t u16val; 1436 uint8_t u8val; 1437 1438 pdev = phba->pcidev; 1439 if (!pdev) 1440 return 0; 1441 1442 /* This is a user read operation */ 1443 debug->op = LPFC_IDIAG_OP_RD; 1444 1445 if (!debug->buffer) 1446 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 1447 if (!debug->buffer) 1448 return 0; 1449 pbuffer = debug->buffer; 1450 1451 if (*ppos) 1452 return 0; 1453 1454 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 1455 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1456 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1457 } else 1458 return 0; 1459 1460 /* Read single PCI config space register */ 1461 switch (count) { 1462 case SIZE_U8: /* byte (8 bits) */ 1463 pci_read_config_byte(pdev, where, &u8val); 1464 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1465 "%03x: %02x\n", where, u8val); 1466 break; 1467 case SIZE_U16: /* word (16 bits) */ 1468 pci_read_config_word(pdev, where, &u16val); 1469 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1470 "%03x: %04x\n", where, u16val); 1471 break; 1472 case SIZE_U32: /* double word (32 bits) */ 1473 pci_read_config_dword(pdev, where, &u32val); 1474 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1475 "%03x: %08x\n", where, u32val); 1476 break; 1477 case LPFC_PCI_CFG_BROWSE: /* browse all */ 1478 goto pcicfg_browse; 1479 break; 1480 default: 1481 /* illegal count */ 1482 len = 0; 1483 break; 1484 } 1485 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1486 1487 pcicfg_browse: 1488 1489 /* Browse all PCI config space registers */ 1490 offset_label = idiag.offset.last_rd; 1491 offset = offset_label; 1492 1493 /* Read PCI config space */ 1494 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1495 "%03x: ", offset_label); 1496 while (index > 0) { 1497 pci_read_config_dword(pdev, offset, &u32val); 1498 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1499 "%08x ", u32val); 1500 offset += sizeof(uint32_t); 1501 if (offset >= LPFC_PCI_CFG_SIZE) { 1502 len += snprintf(pbuffer+len, 1503 LPFC_PCI_CFG_SIZE-len, "\n"); 1504 break; 1505 } 1506 index -= sizeof(uint32_t); 1507 if (!index) 1508 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1509 "\n"); 1510 else if (!(index % (8 * sizeof(uint32_t)))) { 1511 offset_label += (8 * sizeof(uint32_t)); 1512 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1513 "\n%03x: ", offset_label); 1514 } 1515 } 1516 1517 /* Set up the offset for next portion of pci cfg read */ 1518 if (index == 0) { 1519 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 1520 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 1521 idiag.offset.last_rd = 0; 1522 } else 1523 idiag.offset.last_rd = 0; 1524 1525 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1526 } 1527 1528 /** 1529 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 1530 * @file: The file pointer to read from. 1531 * @buf: The buffer to copy the user data from. 1532 * @nbytes: The number of bytes to get. 1533 * @ppos: The position in the file to start reading from. 1534 * 1535 * This routine get the debugfs idiag command struct from user space and 1536 * then perform the syntax check for PCI config space read or write command 1537 * accordingly. In the case of PCI config space read command, it sets up 1538 * the command in the idiag command struct for the debugfs read operation. 1539 * In the case of PCI config space write operation, it executes the write 1540 * operation into the PCI config space accordingly. 1541 * 1542 * It returns the @nbytges passing in from debugfs user space when successful. 1543 * In case of error conditions, it returns proper error code back to the user 1544 * space. 1545 */ 1546 static ssize_t 1547 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 1548 size_t nbytes, loff_t *ppos) 1549 { 1550 struct lpfc_debug *debug = file->private_data; 1551 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1552 uint32_t where, value, count; 1553 uint32_t u32val; 1554 uint16_t u16val; 1555 uint8_t u8val; 1556 struct pci_dev *pdev; 1557 int rc; 1558 1559 pdev = phba->pcidev; 1560 if (!pdev) 1561 return -EFAULT; 1562 1563 /* This is a user write operation */ 1564 debug->op = LPFC_IDIAG_OP_WR; 1565 1566 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 1567 if (rc < 0) 1568 return rc; 1569 1570 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 1571 /* Sanity check on PCI config read command line arguments */ 1572 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 1573 goto error_out; 1574 /* Read command from PCI config space, set up command fields */ 1575 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1576 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1577 if (count == LPFC_PCI_CFG_BROWSE) { 1578 if (where % sizeof(uint32_t)) 1579 goto error_out; 1580 /* Starting offset to browse */ 1581 idiag.offset.last_rd = where; 1582 } else if ((count != sizeof(uint8_t)) && 1583 (count != sizeof(uint16_t)) && 1584 (count != sizeof(uint32_t))) 1585 goto error_out; 1586 if (count == sizeof(uint8_t)) { 1587 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 1588 goto error_out; 1589 if (where % sizeof(uint8_t)) 1590 goto error_out; 1591 } 1592 if (count == sizeof(uint16_t)) { 1593 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 1594 goto error_out; 1595 if (where % sizeof(uint16_t)) 1596 goto error_out; 1597 } 1598 if (count == sizeof(uint32_t)) { 1599 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 1600 goto error_out; 1601 if (where % sizeof(uint32_t)) 1602 goto error_out; 1603 } 1604 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 1605 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 1606 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1607 /* Sanity check on PCI config write command line arguments */ 1608 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 1609 goto error_out; 1610 /* Write command to PCI config space, read-modify-write */ 1611 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1612 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1613 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 1614 /* Sanity checks */ 1615 if ((count != sizeof(uint8_t)) && 1616 (count != sizeof(uint16_t)) && 1617 (count != sizeof(uint32_t))) 1618 goto error_out; 1619 if (count == sizeof(uint8_t)) { 1620 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 1621 goto error_out; 1622 if (where % sizeof(uint8_t)) 1623 goto error_out; 1624 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1625 pci_write_config_byte(pdev, where, 1626 (uint8_t)value); 1627 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1628 rc = pci_read_config_byte(pdev, where, &u8val); 1629 if (!rc) { 1630 u8val |= (uint8_t)value; 1631 pci_write_config_byte(pdev, where, 1632 u8val); 1633 } 1634 } 1635 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1636 rc = pci_read_config_byte(pdev, where, &u8val); 1637 if (!rc) { 1638 u8val &= (uint8_t)(~value); 1639 pci_write_config_byte(pdev, where, 1640 u8val); 1641 } 1642 } 1643 } 1644 if (count == sizeof(uint16_t)) { 1645 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 1646 goto error_out; 1647 if (where % sizeof(uint16_t)) 1648 goto error_out; 1649 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1650 pci_write_config_word(pdev, where, 1651 (uint16_t)value); 1652 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1653 rc = pci_read_config_word(pdev, where, &u16val); 1654 if (!rc) { 1655 u16val |= (uint16_t)value; 1656 pci_write_config_word(pdev, where, 1657 u16val); 1658 } 1659 } 1660 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1661 rc = pci_read_config_word(pdev, where, &u16val); 1662 if (!rc) { 1663 u16val &= (uint16_t)(~value); 1664 pci_write_config_word(pdev, where, 1665 u16val); 1666 } 1667 } 1668 } 1669 if (count == sizeof(uint32_t)) { 1670 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 1671 goto error_out; 1672 if (where % sizeof(uint32_t)) 1673 goto error_out; 1674 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1675 pci_write_config_dword(pdev, where, value); 1676 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1677 rc = pci_read_config_dword(pdev, where, 1678 &u32val); 1679 if (!rc) { 1680 u32val |= value; 1681 pci_write_config_dword(pdev, where, 1682 u32val); 1683 } 1684 } 1685 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1686 rc = pci_read_config_dword(pdev, where, 1687 &u32val); 1688 if (!rc) { 1689 u32val &= ~value; 1690 pci_write_config_dword(pdev, where, 1691 u32val); 1692 } 1693 } 1694 } 1695 } else 1696 /* All other opecodes are illegal for now */ 1697 goto error_out; 1698 1699 return nbytes; 1700 error_out: 1701 memset(&idiag, 0, sizeof(idiag)); 1702 return -EINVAL; 1703 } 1704 1705 /** 1706 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 1707 * @file: The file pointer to read from. 1708 * @buf: The buffer to copy the data to. 1709 * @nbytes: The number of bytes to read. 1710 * @ppos: The position in the file to start reading from. 1711 * 1712 * Description: 1713 * This routine reads data from the @phba pci bar memory mapped space 1714 * according to the idiag command, and copies to user @buf. 1715 * 1716 * Returns: 1717 * This function returns the amount of data that was read (this could be less 1718 * than @nbytes if the end of the file was reached) or a negative error value. 1719 **/ 1720 static ssize_t 1721 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 1722 loff_t *ppos) 1723 { 1724 struct lpfc_debug *debug = file->private_data; 1725 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1726 int offset_label, offset, offset_run, len = 0, index; 1727 int bar_num, acc_range, bar_size; 1728 char *pbuffer; 1729 void __iomem *mem_mapped_bar; 1730 uint32_t if_type; 1731 struct pci_dev *pdev; 1732 uint32_t u32val; 1733 1734 pdev = phba->pcidev; 1735 if (!pdev) 1736 return 0; 1737 1738 /* This is a user read operation */ 1739 debug->op = LPFC_IDIAG_OP_RD; 1740 1741 if (!debug->buffer) 1742 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 1743 if (!debug->buffer) 1744 return 0; 1745 pbuffer = debug->buffer; 1746 1747 if (*ppos) 1748 return 0; 1749 1750 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 1751 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 1752 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 1753 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 1754 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 1755 } else 1756 return 0; 1757 1758 if (acc_range == 0) 1759 return 0; 1760 1761 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1762 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1763 if (bar_num == IDIAG_BARACC_BAR_0) 1764 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1765 else if (bar_num == IDIAG_BARACC_BAR_1) 1766 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 1767 else if (bar_num == IDIAG_BARACC_BAR_2) 1768 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 1769 else 1770 return 0; 1771 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1772 if (bar_num == IDIAG_BARACC_BAR_0) 1773 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1774 else 1775 return 0; 1776 } else 1777 return 0; 1778 1779 /* Read single PCI bar space register */ 1780 if (acc_range == SINGLE_WORD) { 1781 offset_run = offset; 1782 u32val = readl(mem_mapped_bar + offset_run); 1783 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1784 "%05x: %08x\n", offset_run, u32val); 1785 } else 1786 goto baracc_browse; 1787 1788 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1789 1790 baracc_browse: 1791 1792 /* Browse all PCI bar space registers */ 1793 offset_label = idiag.offset.last_rd; 1794 offset_run = offset_label; 1795 1796 /* Read PCI bar memory mapped space */ 1797 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1798 "%05x: ", offset_label); 1799 index = LPFC_PCI_BAR_RD_SIZE; 1800 while (index > 0) { 1801 u32val = readl(mem_mapped_bar + offset_run); 1802 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1803 "%08x ", u32val); 1804 offset_run += sizeof(uint32_t); 1805 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1806 if (offset_run >= bar_size) { 1807 len += snprintf(pbuffer+len, 1808 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1809 break; 1810 } 1811 } else { 1812 if (offset_run >= offset + 1813 (acc_range * sizeof(uint32_t))) { 1814 len += snprintf(pbuffer+len, 1815 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1816 break; 1817 } 1818 } 1819 index -= sizeof(uint32_t); 1820 if (!index) 1821 len += snprintf(pbuffer+len, 1822 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1823 else if (!(index % (8 * sizeof(uint32_t)))) { 1824 offset_label += (8 * sizeof(uint32_t)); 1825 len += snprintf(pbuffer+len, 1826 LPFC_PCI_BAR_RD_BUF_SIZE-len, 1827 "\n%05x: ", offset_label); 1828 } 1829 } 1830 1831 /* Set up the offset for next portion of pci bar read */ 1832 if (index == 0) { 1833 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 1834 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1835 if (idiag.offset.last_rd >= bar_size) 1836 idiag.offset.last_rd = 0; 1837 } else { 1838 if (offset_run >= offset + 1839 (acc_range * sizeof(uint32_t))) 1840 idiag.offset.last_rd = offset; 1841 } 1842 } else { 1843 if (acc_range == LPFC_PCI_BAR_BROWSE) 1844 idiag.offset.last_rd = 0; 1845 else 1846 idiag.offset.last_rd = offset; 1847 } 1848 1849 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1850 } 1851 1852 /** 1853 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 1854 * @file: The file pointer to read from. 1855 * @buf: The buffer to copy the user data from. 1856 * @nbytes: The number of bytes to get. 1857 * @ppos: The position in the file to start reading from. 1858 * 1859 * This routine get the debugfs idiag command struct from user space and 1860 * then perform the syntax check for PCI bar memory mapped space read or 1861 * write command accordingly. In the case of PCI bar memory mapped space 1862 * read command, it sets up the command in the idiag command struct for 1863 * the debugfs read operation. In the case of PCI bar memorpy mapped space 1864 * write operation, it executes the write operation into the PCI bar memory 1865 * mapped space accordingly. 1866 * 1867 * It returns the @nbytges passing in from debugfs user space when successful. 1868 * In case of error conditions, it returns proper error code back to the user 1869 * space. 1870 */ 1871 static ssize_t 1872 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 1873 size_t nbytes, loff_t *ppos) 1874 { 1875 struct lpfc_debug *debug = file->private_data; 1876 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1877 uint32_t bar_num, bar_size, offset, value, acc_range; 1878 struct pci_dev *pdev; 1879 void __iomem *mem_mapped_bar; 1880 uint32_t if_type; 1881 uint32_t u32val; 1882 int rc; 1883 1884 pdev = phba->pcidev; 1885 if (!pdev) 1886 return -EFAULT; 1887 1888 /* This is a user write operation */ 1889 debug->op = LPFC_IDIAG_OP_WR; 1890 1891 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 1892 if (rc < 0) 1893 return rc; 1894 1895 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1896 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 1897 1898 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1899 if ((bar_num != IDIAG_BARACC_BAR_0) && 1900 (bar_num != IDIAG_BARACC_BAR_1) && 1901 (bar_num != IDIAG_BARACC_BAR_2)) 1902 goto error_out; 1903 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1904 if (bar_num != IDIAG_BARACC_BAR_0) 1905 goto error_out; 1906 } else 1907 goto error_out; 1908 1909 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1910 if (bar_num == IDIAG_BARACC_BAR_0) { 1911 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1912 LPFC_PCI_IF0_BAR0_SIZE; 1913 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1914 } else if (bar_num == IDIAG_BARACC_BAR_1) { 1915 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1916 LPFC_PCI_IF0_BAR1_SIZE; 1917 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 1918 } else if (bar_num == IDIAG_BARACC_BAR_2) { 1919 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1920 LPFC_PCI_IF0_BAR2_SIZE; 1921 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 1922 } else 1923 goto error_out; 1924 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1925 if (bar_num == IDIAG_BARACC_BAR_0) { 1926 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1927 LPFC_PCI_IF2_BAR0_SIZE; 1928 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1929 } else 1930 goto error_out; 1931 } else 1932 goto error_out; 1933 1934 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 1935 if (offset % sizeof(uint32_t)) 1936 goto error_out; 1937 1938 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 1939 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 1940 /* Sanity check on PCI config read command line arguments */ 1941 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 1942 goto error_out; 1943 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 1944 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1945 if (offset > bar_size - sizeof(uint32_t)) 1946 goto error_out; 1947 /* Starting offset to browse */ 1948 idiag.offset.last_rd = offset; 1949 } else if (acc_range > SINGLE_WORD) { 1950 if (offset + acc_range * sizeof(uint32_t) > bar_size) 1951 goto error_out; 1952 /* Starting offset to browse */ 1953 idiag.offset.last_rd = offset; 1954 } else if (acc_range != SINGLE_WORD) 1955 goto error_out; 1956 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 1957 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 1958 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 1959 /* Sanity check on PCI bar write command line arguments */ 1960 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 1961 goto error_out; 1962 /* Write command to PCI bar space, read-modify-write */ 1963 acc_range = SINGLE_WORD; 1964 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 1965 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 1966 writel(value, mem_mapped_bar + offset); 1967 readl(mem_mapped_bar + offset); 1968 } 1969 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 1970 u32val = readl(mem_mapped_bar + offset); 1971 u32val |= value; 1972 writel(u32val, mem_mapped_bar + offset); 1973 readl(mem_mapped_bar + offset); 1974 } 1975 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 1976 u32val = readl(mem_mapped_bar + offset); 1977 u32val &= ~value; 1978 writel(u32val, mem_mapped_bar + offset); 1979 readl(mem_mapped_bar + offset); 1980 } 1981 } else 1982 /* All other opecodes are illegal for now */ 1983 goto error_out; 1984 1985 return nbytes; 1986 error_out: 1987 memset(&idiag, 0, sizeof(idiag)); 1988 return -EINVAL; 1989 } 1990 1991 /** 1992 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 1993 * @file: The file pointer to read from. 1994 * @buf: The buffer to copy the data to. 1995 * @nbytes: The number of bytes to read. 1996 * @ppos: The position in the file to start reading from. 1997 * 1998 * Description: 1999 * This routine reads data from the @phba SLI4 PCI function queue information, 2000 * and copies to user @buf. 2001 * 2002 * Returns: 2003 * This function returns the amount of data that was read (this could be less 2004 * than @nbytes if the end of the file was reached) or a negative error value. 2005 **/ 2006 static ssize_t 2007 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 2008 loff_t *ppos) 2009 { 2010 struct lpfc_debug *debug = file->private_data; 2011 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2012 int len = 0; 2013 char *pbuffer; 2014 int x, cnt; 2015 int max_cnt; 2016 struct lpfc_queue *qp = NULL; 2017 2018 2019 if (!debug->buffer) 2020 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 2021 if (!debug->buffer) 2022 return 0; 2023 pbuffer = debug->buffer; 2024 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128; 2025 2026 if (*ppos) 2027 return 0; 2028 2029 spin_lock_irq(&phba->hbalock); 2030 2031 /* Fast-path event queue */ 2032 if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) { 2033 cnt = phba->cfg_fcp_io_channel; 2034 2035 for (x = 0; x < cnt; x++) { 2036 2037 /* Fast-path EQ */ 2038 qp = phba->sli4_hba.hba_eq[x]; 2039 if (!qp) 2040 goto proc_cq; 2041 2042 len += snprintf(pbuffer+len, 2043 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2044 "\nHBA EQ info: " 2045 "EQ-STAT[max:x%x noE:x%x " 2046 "bs:x%x proc:x%llx]\n", 2047 qp->q_cnt_1, qp->q_cnt_2, 2048 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 2049 2050 len += snprintf(pbuffer+len, 2051 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2052 "EQID[%02d], " 2053 "QE-CNT[%04d], QE-SIZE[%04d], " 2054 "HOST-IDX[%04d], PORT-IDX[%04d]", 2055 qp->queue_id, 2056 qp->entry_count, 2057 qp->entry_size, 2058 qp->host_index, 2059 qp->hba_index); 2060 2061 2062 /* Reset max counter */ 2063 qp->EQ_max_eqe = 0; 2064 2065 len += snprintf(pbuffer+len, 2066 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2067 if (len >= max_cnt) 2068 goto too_big; 2069 proc_cq: 2070 /* Fast-path FCP CQ */ 2071 qp = phba->sli4_hba.fcp_cq[x]; 2072 len += snprintf(pbuffer+len, 2073 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2074 "\tFCP CQ info: "); 2075 len += snprintf(pbuffer+len, 2076 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2077 "AssocEQID[%02d]: " 2078 "CQ STAT[max:x%x relw:x%x " 2079 "xabt:x%x wq:x%llx]\n", 2080 qp->assoc_qid, 2081 qp->q_cnt_1, qp->q_cnt_2, 2082 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 2083 len += snprintf(pbuffer+len, 2084 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2085 "\tCQID[%02d], " 2086 "QE-CNT[%04d], QE-SIZE[%04d], " 2087 "HOST-IDX[%04d], PORT-IDX[%04d]", 2088 qp->queue_id, qp->entry_count, 2089 qp->entry_size, qp->host_index, 2090 qp->hba_index); 2091 2092 2093 /* Reset max counter */ 2094 qp->CQ_max_cqe = 0; 2095 2096 len += snprintf(pbuffer+len, 2097 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2098 if (len >= max_cnt) 2099 goto too_big; 2100 2101 /* Fast-path FCP WQ */ 2102 qp = phba->sli4_hba.fcp_wq[x]; 2103 2104 len += snprintf(pbuffer+len, 2105 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2106 "\t\tFCP WQ info: "); 2107 len += snprintf(pbuffer+len, 2108 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2109 "AssocCQID[%02d]: " 2110 "WQ-STAT[oflow:x%x posted:x%llx]\n", 2111 qp->assoc_qid, 2112 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4); 2113 len += snprintf(pbuffer+len, 2114 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2115 "\t\tWQID[%02d], " 2116 "QE-CNT[%04d], QE-SIZE[%04d], " 2117 "HOST-IDX[%04d], PORT-IDX[%04d]", 2118 qp->queue_id, 2119 qp->entry_count, 2120 qp->entry_size, 2121 qp->host_index, 2122 qp->hba_index); 2123 2124 len += snprintf(pbuffer+len, 2125 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2126 if (len >= max_cnt) 2127 goto too_big; 2128 2129 if (x) 2130 continue; 2131 2132 /* Only EQ 0 has slow path CQs configured */ 2133 2134 /* Slow-path mailbox CQ */ 2135 qp = phba->sli4_hba.mbx_cq; 2136 if (qp) { 2137 len += snprintf(pbuffer+len, 2138 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2139 "\tMBX CQ info: "); 2140 len += snprintf(pbuffer+len, 2141 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2142 "AssocEQID[%02d]: " 2143 "CQ-STAT[mbox:x%x relw:x%x " 2144 "xabt:x%x wq:x%llx]\n", 2145 qp->assoc_qid, 2146 qp->q_cnt_1, qp->q_cnt_2, 2147 qp->q_cnt_3, 2148 (unsigned long long)qp->q_cnt_4); 2149 len += snprintf(pbuffer+len, 2150 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2151 "\tCQID[%02d], " 2152 "QE-CNT[%04d], QE-SIZE[%04d], " 2153 "HOST-IDX[%04d], PORT-IDX[%04d]", 2154 qp->queue_id, qp->entry_count, 2155 qp->entry_size, qp->host_index, 2156 qp->hba_index); 2157 2158 len += snprintf(pbuffer+len, 2159 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2160 if (len >= max_cnt) 2161 goto too_big; 2162 } 2163 2164 /* Slow-path MBOX MQ */ 2165 qp = phba->sli4_hba.mbx_wq; 2166 if (qp) { 2167 len += snprintf(pbuffer+len, 2168 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2169 "\t\tMBX MQ info: "); 2170 len += snprintf(pbuffer+len, 2171 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2172 "AssocCQID[%02d]:\n", 2173 phba->sli4_hba.mbx_wq->assoc_qid); 2174 len += snprintf(pbuffer+len, 2175 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2176 "\t\tWQID[%02d], " 2177 "QE-CNT[%04d], QE-SIZE[%04d], " 2178 "HOST-IDX[%04d], PORT-IDX[%04d]", 2179 qp->queue_id, qp->entry_count, 2180 qp->entry_size, qp->host_index, 2181 qp->hba_index); 2182 2183 len += snprintf(pbuffer+len, 2184 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2185 if (len >= max_cnt) 2186 goto too_big; 2187 } 2188 2189 /* Slow-path ELS response CQ */ 2190 qp = phba->sli4_hba.els_cq; 2191 if (qp) { 2192 len += snprintf(pbuffer+len, 2193 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2194 "\tELS CQ info: "); 2195 len += snprintf(pbuffer+len, 2196 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2197 "AssocEQID[%02d]: " 2198 "CQ-STAT[max:x%x relw:x%x " 2199 "xabt:x%x wq:x%llx]\n", 2200 qp->assoc_qid, 2201 qp->q_cnt_1, qp->q_cnt_2, 2202 qp->q_cnt_3, 2203 (unsigned long long)qp->q_cnt_4); 2204 len += snprintf(pbuffer+len, 2205 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2206 "\tCQID [%02d], " 2207 "QE-CNT[%04d], QE-SIZE[%04d], " 2208 "HOST-IDX[%04d], PORT-IDX[%04d]", 2209 qp->queue_id, qp->entry_count, 2210 qp->entry_size, qp->host_index, 2211 qp->hba_index); 2212 2213 /* Reset max counter */ 2214 qp->CQ_max_cqe = 0; 2215 2216 len += snprintf(pbuffer+len, 2217 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2218 if (len >= max_cnt) 2219 goto too_big; 2220 } 2221 2222 /* Slow-path ELS WQ */ 2223 qp = phba->sli4_hba.els_wq; 2224 if (qp) { 2225 len += snprintf(pbuffer+len, 2226 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2227 "\t\tELS WQ info: "); 2228 len += snprintf(pbuffer+len, 2229 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2230 "AssocCQID[%02d]: " 2231 " WQ-STAT[oflow:x%x " 2232 "posted:x%llx]\n", 2233 qp->assoc_qid, 2234 qp->q_cnt_1, 2235 (unsigned long long)qp->q_cnt_4); 2236 len += snprintf(pbuffer+len, 2237 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2238 "\t\tWQID[%02d], " 2239 "QE-CNT[%04d], QE-SIZE[%04d], " 2240 "HOST-IDX[%04d], PORT-IDX[%04d]", 2241 qp->queue_id, qp->entry_count, 2242 qp->entry_size, qp->host_index, 2243 qp->hba_index); 2244 2245 len += snprintf(pbuffer+len, 2246 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2247 if (len >= max_cnt) 2248 goto too_big; 2249 } 2250 2251 if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) { 2252 /* Slow-path RQ header */ 2253 qp = phba->sli4_hba.hdr_rq; 2254 2255 len += snprintf(pbuffer+len, 2256 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2257 "\t\tRQ info: "); 2258 len += snprintf(pbuffer+len, 2259 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2260 "AssocCQID[%02d]: " 2261 "RQ-STAT[nopost:x%x nobuf:x%x " 2262 "trunc:x%x rcv:x%llx]\n", 2263 qp->assoc_qid, 2264 qp->q_cnt_1, qp->q_cnt_2, 2265 qp->q_cnt_3, 2266 (unsigned long long)qp->q_cnt_4); 2267 len += snprintf(pbuffer+len, 2268 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2269 "\t\tHQID[%02d], " 2270 "QE-CNT[%04d], QE-SIZE[%04d], " 2271 "HOST-IDX[%04d], PORT-IDX[%04d]\n", 2272 qp->queue_id, 2273 qp->entry_count, 2274 qp->entry_size, 2275 qp->host_index, 2276 qp->hba_index); 2277 2278 /* Slow-path RQ data */ 2279 qp = phba->sli4_hba.dat_rq; 2280 len += snprintf(pbuffer+len, 2281 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2282 "\t\tDQID[%02d], " 2283 "QE-CNT[%04d], QE-SIZE[%04d], " 2284 "HOST-IDX[%04d], PORT-IDX[%04d]\n", 2285 qp->queue_id, 2286 qp->entry_count, 2287 qp->entry_size, 2288 qp->host_index, 2289 qp->hba_index); 2290 2291 len += snprintf(pbuffer+len, 2292 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2293 } 2294 } 2295 } 2296 2297 spin_unlock_irq(&phba->hbalock); 2298 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2299 2300 too_big: 2301 len += snprintf(pbuffer+len, 2302 LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n"); 2303 spin_unlock_irq(&phba->hbalock); 2304 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2305 } 2306 2307 /** 2308 * lpfc_idiag_que_param_check - queue access command parameter sanity check 2309 * @q: The pointer to queue structure. 2310 * @index: The index into a queue entry. 2311 * @count: The number of queue entries to access. 2312 * 2313 * Description: 2314 * The routine performs sanity check on device queue access method commands. 2315 * 2316 * Returns: 2317 * This function returns -EINVAL when fails the sanity check, otherwise, it 2318 * returns 0. 2319 **/ 2320 static int 2321 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 2322 { 2323 /* Only support single entry read or browsing */ 2324 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 2325 return -EINVAL; 2326 if (index > q->entry_count - 1) 2327 return -EINVAL; 2328 return 0; 2329 } 2330 2331 /** 2332 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 2333 * @pbuffer: The pointer to buffer to copy the read data into. 2334 * @pque: The pointer to the queue to be read. 2335 * @index: The index into the queue entry. 2336 * 2337 * Description: 2338 * This routine reads out a single entry from the given queue's index location 2339 * and copies it into the buffer provided. 2340 * 2341 * Returns: 2342 * This function returns 0 when it fails, otherwise, it returns the length of 2343 * the data read into the buffer provided. 2344 **/ 2345 static int 2346 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 2347 uint32_t index) 2348 { 2349 int offset, esize; 2350 uint32_t *pentry; 2351 2352 if (!pbuffer || !pque) 2353 return 0; 2354 2355 esize = pque->entry_size; 2356 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 2357 "QE-INDEX[%04d]:\n", index); 2358 2359 offset = 0; 2360 pentry = pque->qe[index].address; 2361 while (esize > 0) { 2362 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 2363 "%08x ", *pentry); 2364 pentry++; 2365 offset += sizeof(uint32_t); 2366 esize -= sizeof(uint32_t); 2367 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 2368 len += snprintf(pbuffer+len, 2369 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 2370 } 2371 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 2372 2373 return len; 2374 } 2375 2376 /** 2377 * lpfc_idiag_queacc_read - idiag debugfs read port queue 2378 * @file: The file pointer to read from. 2379 * @buf: The buffer to copy the data to. 2380 * @nbytes: The number of bytes to read. 2381 * @ppos: The position in the file to start reading from. 2382 * 2383 * Description: 2384 * This routine reads data from the @phba device queue memory according to the 2385 * idiag command, and copies to user @buf. Depending on the queue dump read 2386 * command setup, it does either a single queue entry read or browing through 2387 * all entries of the queue. 2388 * 2389 * Returns: 2390 * This function returns the amount of data that was read (this could be less 2391 * than @nbytes if the end of the file was reached) or a negative error value. 2392 **/ 2393 static ssize_t 2394 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 2395 loff_t *ppos) 2396 { 2397 struct lpfc_debug *debug = file->private_data; 2398 uint32_t last_index, index, count; 2399 struct lpfc_queue *pque = NULL; 2400 char *pbuffer; 2401 int len = 0; 2402 2403 /* This is a user read operation */ 2404 debug->op = LPFC_IDIAG_OP_RD; 2405 2406 if (!debug->buffer) 2407 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 2408 if (!debug->buffer) 2409 return 0; 2410 pbuffer = debug->buffer; 2411 2412 if (*ppos) 2413 return 0; 2414 2415 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2416 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 2417 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 2418 pque = (struct lpfc_queue *)idiag.ptr_private; 2419 } else 2420 return 0; 2421 2422 /* Browse the queue starting from index */ 2423 if (count == LPFC_QUE_ACC_BROWSE) 2424 goto que_browse; 2425 2426 /* Read a single entry from the queue */ 2427 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 2428 2429 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2430 2431 que_browse: 2432 2433 /* Browse all entries from the queue */ 2434 last_index = idiag.offset.last_rd; 2435 index = last_index; 2436 2437 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 2438 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 2439 index++; 2440 if (index > pque->entry_count - 1) 2441 break; 2442 } 2443 2444 /* Set up the offset for next portion of pci cfg read */ 2445 if (index > pque->entry_count - 1) 2446 index = 0; 2447 idiag.offset.last_rd = index; 2448 2449 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2450 } 2451 2452 /** 2453 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 2454 * @file: The file pointer to read from. 2455 * @buf: The buffer to copy the user data from. 2456 * @nbytes: The number of bytes to get. 2457 * @ppos: The position in the file to start reading from. 2458 * 2459 * This routine get the debugfs idiag command struct from user space and then 2460 * perform the syntax check for port queue read (dump) or write (set) command 2461 * accordingly. In the case of port queue read command, it sets up the command 2462 * in the idiag command struct for the following debugfs read operation. In 2463 * the case of port queue write operation, it executes the write operation 2464 * into the port queue entry accordingly. 2465 * 2466 * It returns the @nbytges passing in from debugfs user space when successful. 2467 * In case of error conditions, it returns proper error code back to the user 2468 * space. 2469 **/ 2470 static ssize_t 2471 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 2472 size_t nbytes, loff_t *ppos) 2473 { 2474 struct lpfc_debug *debug = file->private_data; 2475 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2476 uint32_t qidx, quetp, queid, index, count, offset, value; 2477 uint32_t *pentry; 2478 struct lpfc_queue *pque; 2479 int rc; 2480 2481 /* This is a user write operation */ 2482 debug->op = LPFC_IDIAG_OP_WR; 2483 2484 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2485 if (rc < 0) 2486 return rc; 2487 2488 /* Get and sanity check on command feilds */ 2489 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 2490 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 2491 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 2492 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 2493 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 2494 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 2495 2496 /* Sanity check on command line arguments */ 2497 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 2498 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 2499 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 2500 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 2501 goto error_out; 2502 if (count != 1) 2503 goto error_out; 2504 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2505 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 2506 goto error_out; 2507 } else 2508 goto error_out; 2509 2510 switch (quetp) { 2511 case LPFC_IDIAG_EQ: 2512 /* HBA event queue */ 2513 if (phba->sli4_hba.hba_eq) { 2514 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 2515 qidx++) { 2516 if (phba->sli4_hba.hba_eq[qidx] && 2517 phba->sli4_hba.hba_eq[qidx]->queue_id == 2518 queid) { 2519 /* Sanity check */ 2520 rc = lpfc_idiag_que_param_check( 2521 phba->sli4_hba.hba_eq[qidx], 2522 index, count); 2523 if (rc) 2524 goto error_out; 2525 idiag.ptr_private = 2526 phba->sli4_hba.hba_eq[qidx]; 2527 goto pass_check; 2528 } 2529 } 2530 } 2531 goto error_out; 2532 break; 2533 case LPFC_IDIAG_CQ: 2534 /* MBX complete queue */ 2535 if (phba->sli4_hba.mbx_cq && 2536 phba->sli4_hba.mbx_cq->queue_id == queid) { 2537 /* Sanity check */ 2538 rc = lpfc_idiag_que_param_check( 2539 phba->sli4_hba.mbx_cq, index, count); 2540 if (rc) 2541 goto error_out; 2542 idiag.ptr_private = phba->sli4_hba.mbx_cq; 2543 goto pass_check; 2544 } 2545 /* ELS complete queue */ 2546 if (phba->sli4_hba.els_cq && 2547 phba->sli4_hba.els_cq->queue_id == queid) { 2548 /* Sanity check */ 2549 rc = lpfc_idiag_que_param_check( 2550 phba->sli4_hba.els_cq, index, count); 2551 if (rc) 2552 goto error_out; 2553 idiag.ptr_private = phba->sli4_hba.els_cq; 2554 goto pass_check; 2555 } 2556 /* FCP complete queue */ 2557 if (phba->sli4_hba.fcp_cq) { 2558 qidx = 0; 2559 do { 2560 if (phba->sli4_hba.fcp_cq[qidx] && 2561 phba->sli4_hba.fcp_cq[qidx]->queue_id == 2562 queid) { 2563 /* Sanity check */ 2564 rc = lpfc_idiag_que_param_check( 2565 phba->sli4_hba.fcp_cq[qidx], 2566 index, count); 2567 if (rc) 2568 goto error_out; 2569 idiag.ptr_private = 2570 phba->sli4_hba.fcp_cq[qidx]; 2571 goto pass_check; 2572 } 2573 } while (++qidx < phba->cfg_fcp_io_channel); 2574 } 2575 goto error_out; 2576 break; 2577 case LPFC_IDIAG_MQ: 2578 /* MBX work queue */ 2579 if (phba->sli4_hba.mbx_wq && 2580 phba->sli4_hba.mbx_wq->queue_id == queid) { 2581 /* Sanity check */ 2582 rc = lpfc_idiag_que_param_check( 2583 phba->sli4_hba.mbx_wq, index, count); 2584 if (rc) 2585 goto error_out; 2586 idiag.ptr_private = phba->sli4_hba.mbx_wq; 2587 goto pass_check; 2588 } 2589 goto error_out; 2590 break; 2591 case LPFC_IDIAG_WQ: 2592 /* ELS work queue */ 2593 if (phba->sli4_hba.els_wq && 2594 phba->sli4_hba.els_wq->queue_id == queid) { 2595 /* Sanity check */ 2596 rc = lpfc_idiag_que_param_check( 2597 phba->sli4_hba.els_wq, index, count); 2598 if (rc) 2599 goto error_out; 2600 idiag.ptr_private = phba->sli4_hba.els_wq; 2601 goto pass_check; 2602 } 2603 /* FCP work queue */ 2604 if (phba->sli4_hba.fcp_wq) { 2605 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 2606 qidx++) { 2607 if (!phba->sli4_hba.fcp_wq[qidx]) 2608 continue; 2609 if (phba->sli4_hba.fcp_wq[qidx]->queue_id == 2610 queid) { 2611 /* Sanity check */ 2612 rc = lpfc_idiag_que_param_check( 2613 phba->sli4_hba.fcp_wq[qidx], 2614 index, count); 2615 if (rc) 2616 goto error_out; 2617 idiag.ptr_private = 2618 phba->sli4_hba.fcp_wq[qidx]; 2619 goto pass_check; 2620 } 2621 } 2622 } 2623 goto error_out; 2624 break; 2625 case LPFC_IDIAG_RQ: 2626 /* HDR queue */ 2627 if (phba->sli4_hba.hdr_rq && 2628 phba->sli4_hba.hdr_rq->queue_id == queid) { 2629 /* Sanity check */ 2630 rc = lpfc_idiag_que_param_check( 2631 phba->sli4_hba.hdr_rq, index, count); 2632 if (rc) 2633 goto error_out; 2634 idiag.ptr_private = phba->sli4_hba.hdr_rq; 2635 goto pass_check; 2636 } 2637 /* DAT queue */ 2638 if (phba->sli4_hba.dat_rq && 2639 phba->sli4_hba.dat_rq->queue_id == queid) { 2640 /* Sanity check */ 2641 rc = lpfc_idiag_que_param_check( 2642 phba->sli4_hba.dat_rq, index, count); 2643 if (rc) 2644 goto error_out; 2645 idiag.ptr_private = phba->sli4_hba.dat_rq; 2646 goto pass_check; 2647 } 2648 goto error_out; 2649 break; 2650 default: 2651 goto error_out; 2652 break; 2653 } 2654 2655 pass_check: 2656 2657 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2658 if (count == LPFC_QUE_ACC_BROWSE) 2659 idiag.offset.last_rd = index; 2660 } 2661 2662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 2663 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 2664 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 2665 /* Additional sanity checks on write operation */ 2666 pque = (struct lpfc_queue *)idiag.ptr_private; 2667 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 2668 goto error_out; 2669 pentry = pque->qe[index].address; 2670 pentry += offset; 2671 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 2672 *pentry = value; 2673 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 2674 *pentry |= value; 2675 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 2676 *pentry &= ~value; 2677 } 2678 return nbytes; 2679 2680 error_out: 2681 /* Clean out command structure on command error out */ 2682 memset(&idiag, 0, sizeof(idiag)); 2683 return -EINVAL; 2684 } 2685 2686 /** 2687 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 2688 * @phba: The pointer to hba structure. 2689 * @pbuffer: The pointer to the buffer to copy the data to. 2690 * @len: The lenght of bytes to copied. 2691 * @drbregid: The id to doorbell registers. 2692 * 2693 * Description: 2694 * This routine reads a doorbell register and copies its content to the 2695 * user buffer pointed to by @pbuffer. 2696 * 2697 * Returns: 2698 * This function returns the amount of data that was copied into @pbuffer. 2699 **/ 2700 static int 2701 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 2702 int len, uint32_t drbregid) 2703 { 2704 2705 if (!pbuffer) 2706 return 0; 2707 2708 switch (drbregid) { 2709 case LPFC_DRB_EQCQ: 2710 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2711 "EQCQ-DRB-REG: 0x%08x\n", 2712 readl(phba->sli4_hba.EQCQDBregaddr)); 2713 break; 2714 case LPFC_DRB_MQ: 2715 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2716 "MQ-DRB-REG: 0x%08x\n", 2717 readl(phba->sli4_hba.MQDBregaddr)); 2718 break; 2719 case LPFC_DRB_WQ: 2720 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2721 "WQ-DRB-REG: 0x%08x\n", 2722 readl(phba->sli4_hba.WQDBregaddr)); 2723 break; 2724 case LPFC_DRB_RQ: 2725 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2726 "RQ-DRB-REG: 0x%08x\n", 2727 readl(phba->sli4_hba.RQDBregaddr)); 2728 break; 2729 default: 2730 break; 2731 } 2732 2733 return len; 2734 } 2735 2736 /** 2737 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 2738 * @file: The file pointer to read from. 2739 * @buf: The buffer to copy the data to. 2740 * @nbytes: The number of bytes to read. 2741 * @ppos: The position in the file to start reading from. 2742 * 2743 * Description: 2744 * This routine reads data from the @phba device doorbell register according 2745 * to the idiag command, and copies to user @buf. Depending on the doorbell 2746 * register read command setup, it does either a single doorbell register 2747 * read or dump all doorbell registers. 2748 * 2749 * Returns: 2750 * This function returns the amount of data that was read (this could be less 2751 * than @nbytes if the end of the file was reached) or a negative error value. 2752 **/ 2753 static ssize_t 2754 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 2755 loff_t *ppos) 2756 { 2757 struct lpfc_debug *debug = file->private_data; 2758 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2759 uint32_t drb_reg_id, i; 2760 char *pbuffer; 2761 int len = 0; 2762 2763 /* This is a user read operation */ 2764 debug->op = LPFC_IDIAG_OP_RD; 2765 2766 if (!debug->buffer) 2767 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 2768 if (!debug->buffer) 2769 return 0; 2770 pbuffer = debug->buffer; 2771 2772 if (*ppos) 2773 return 0; 2774 2775 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 2776 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 2777 else 2778 return 0; 2779 2780 if (drb_reg_id == LPFC_DRB_ACC_ALL) 2781 for (i = 1; i <= LPFC_DRB_MAX; i++) 2782 len = lpfc_idiag_drbacc_read_reg(phba, 2783 pbuffer, len, i); 2784 else 2785 len = lpfc_idiag_drbacc_read_reg(phba, 2786 pbuffer, len, drb_reg_id); 2787 2788 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2789 } 2790 2791 /** 2792 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 2793 * @file: The file pointer to read from. 2794 * @buf: The buffer to copy the user data from. 2795 * @nbytes: The number of bytes to get. 2796 * @ppos: The position in the file to start reading from. 2797 * 2798 * This routine get the debugfs idiag command struct from user space and then 2799 * perform the syntax check for port doorbell register read (dump) or write 2800 * (set) command accordingly. In the case of port queue read command, it sets 2801 * up the command in the idiag command struct for the following debugfs read 2802 * operation. In the case of port doorbell register write operation, it 2803 * executes the write operation into the port doorbell register accordingly. 2804 * 2805 * It returns the @nbytges passing in from debugfs user space when successful. 2806 * In case of error conditions, it returns proper error code back to the user 2807 * space. 2808 **/ 2809 static ssize_t 2810 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 2811 size_t nbytes, loff_t *ppos) 2812 { 2813 struct lpfc_debug *debug = file->private_data; 2814 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2815 uint32_t drb_reg_id, value, reg_val = 0; 2816 void __iomem *drb_reg; 2817 int rc; 2818 2819 /* This is a user write operation */ 2820 debug->op = LPFC_IDIAG_OP_WR; 2821 2822 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2823 if (rc < 0) 2824 return rc; 2825 2826 /* Sanity check on command line arguments */ 2827 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 2828 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 2829 2830 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 2831 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 2832 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2833 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 2834 goto error_out; 2835 if (drb_reg_id > LPFC_DRB_MAX) 2836 goto error_out; 2837 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 2838 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 2839 goto error_out; 2840 if ((drb_reg_id > LPFC_DRB_MAX) && 2841 (drb_reg_id != LPFC_DRB_ACC_ALL)) 2842 goto error_out; 2843 } else 2844 goto error_out; 2845 2846 /* Perform the write access operation */ 2847 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 2848 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 2849 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2850 switch (drb_reg_id) { 2851 case LPFC_DRB_EQCQ: 2852 drb_reg = phba->sli4_hba.EQCQDBregaddr; 2853 break; 2854 case LPFC_DRB_MQ: 2855 drb_reg = phba->sli4_hba.MQDBregaddr; 2856 break; 2857 case LPFC_DRB_WQ: 2858 drb_reg = phba->sli4_hba.WQDBregaddr; 2859 break; 2860 case LPFC_DRB_RQ: 2861 drb_reg = phba->sli4_hba.RQDBregaddr; 2862 break; 2863 default: 2864 goto error_out; 2865 } 2866 2867 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 2868 reg_val = value; 2869 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 2870 reg_val = readl(drb_reg); 2871 reg_val |= value; 2872 } 2873 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2874 reg_val = readl(drb_reg); 2875 reg_val &= ~value; 2876 } 2877 writel(reg_val, drb_reg); 2878 readl(drb_reg); /* flush */ 2879 } 2880 return nbytes; 2881 2882 error_out: 2883 /* Clean out command structure on command error out */ 2884 memset(&idiag, 0, sizeof(idiag)); 2885 return -EINVAL; 2886 } 2887 2888 /** 2889 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 2890 * @phba: The pointer to hba structure. 2891 * @pbuffer: The pointer to the buffer to copy the data to. 2892 * @len: The lenght of bytes to copied. 2893 * @drbregid: The id to doorbell registers. 2894 * 2895 * Description: 2896 * This routine reads a control register and copies its content to the 2897 * user buffer pointed to by @pbuffer. 2898 * 2899 * Returns: 2900 * This function returns the amount of data that was copied into @pbuffer. 2901 **/ 2902 static int 2903 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 2904 int len, uint32_t ctlregid) 2905 { 2906 2907 if (!pbuffer) 2908 return 0; 2909 2910 switch (ctlregid) { 2911 case LPFC_CTL_PORT_SEM: 2912 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2913 "Port SemReg: 0x%08x\n", 2914 readl(phba->sli4_hba.conf_regs_memmap_p + 2915 LPFC_CTL_PORT_SEM_OFFSET)); 2916 break; 2917 case LPFC_CTL_PORT_STA: 2918 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2919 "Port StaReg: 0x%08x\n", 2920 readl(phba->sli4_hba.conf_regs_memmap_p + 2921 LPFC_CTL_PORT_STA_OFFSET)); 2922 break; 2923 case LPFC_CTL_PORT_CTL: 2924 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2925 "Port CtlReg: 0x%08x\n", 2926 readl(phba->sli4_hba.conf_regs_memmap_p + 2927 LPFC_CTL_PORT_CTL_OFFSET)); 2928 break; 2929 case LPFC_CTL_PORT_ER1: 2930 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2931 "Port Er1Reg: 0x%08x\n", 2932 readl(phba->sli4_hba.conf_regs_memmap_p + 2933 LPFC_CTL_PORT_ER1_OFFSET)); 2934 break; 2935 case LPFC_CTL_PORT_ER2: 2936 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2937 "Port Er2Reg: 0x%08x\n", 2938 readl(phba->sli4_hba.conf_regs_memmap_p + 2939 LPFC_CTL_PORT_ER2_OFFSET)); 2940 break; 2941 case LPFC_CTL_PDEV_CTL: 2942 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2943 "PDev CtlReg: 0x%08x\n", 2944 readl(phba->sli4_hba.conf_regs_memmap_p + 2945 LPFC_CTL_PDEV_CTL_OFFSET)); 2946 break; 2947 default: 2948 break; 2949 } 2950 return len; 2951 } 2952 2953 /** 2954 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 2955 * @file: The file pointer to read from. 2956 * @buf: The buffer to copy the data to. 2957 * @nbytes: The number of bytes to read. 2958 * @ppos: The position in the file to start reading from. 2959 * 2960 * Description: 2961 * This routine reads data from the @phba port and device registers according 2962 * to the idiag command, and copies to user @buf. 2963 * 2964 * Returns: 2965 * This function returns the amount of data that was read (this could be less 2966 * than @nbytes if the end of the file was reached) or a negative error value. 2967 **/ 2968 static ssize_t 2969 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 2970 loff_t *ppos) 2971 { 2972 struct lpfc_debug *debug = file->private_data; 2973 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2974 uint32_t ctl_reg_id, i; 2975 char *pbuffer; 2976 int len = 0; 2977 2978 /* This is a user read operation */ 2979 debug->op = LPFC_IDIAG_OP_RD; 2980 2981 if (!debug->buffer) 2982 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 2983 if (!debug->buffer) 2984 return 0; 2985 pbuffer = debug->buffer; 2986 2987 if (*ppos) 2988 return 0; 2989 2990 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 2991 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 2992 else 2993 return 0; 2994 2995 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 2996 for (i = 1; i <= LPFC_CTL_MAX; i++) 2997 len = lpfc_idiag_ctlacc_read_reg(phba, 2998 pbuffer, len, i); 2999 else 3000 len = lpfc_idiag_ctlacc_read_reg(phba, 3001 pbuffer, len, ctl_reg_id); 3002 3003 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3004 } 3005 3006 /** 3007 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 3008 * @file: The file pointer to read from. 3009 * @buf: The buffer to copy the user data from. 3010 * @nbytes: The number of bytes to get. 3011 * @ppos: The position in the file to start reading from. 3012 * 3013 * This routine get the debugfs idiag command struct from user space and then 3014 * perform the syntax check for port and device control register read (dump) 3015 * or write (set) command accordingly. 3016 * 3017 * It returns the @nbytges passing in from debugfs user space when successful. 3018 * In case of error conditions, it returns proper error code back to the user 3019 * space. 3020 **/ 3021 static ssize_t 3022 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 3023 size_t nbytes, loff_t *ppos) 3024 { 3025 struct lpfc_debug *debug = file->private_data; 3026 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3027 uint32_t ctl_reg_id, value, reg_val = 0; 3028 void __iomem *ctl_reg; 3029 int rc; 3030 3031 /* This is a user write operation */ 3032 debug->op = LPFC_IDIAG_OP_WR; 3033 3034 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3035 if (rc < 0) 3036 return rc; 3037 3038 /* Sanity check on command line arguments */ 3039 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 3040 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 3041 3042 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 3043 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 3044 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 3045 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 3046 goto error_out; 3047 if (ctl_reg_id > LPFC_CTL_MAX) 3048 goto error_out; 3049 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 3050 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 3051 goto error_out; 3052 if ((ctl_reg_id > LPFC_CTL_MAX) && 3053 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 3054 goto error_out; 3055 } else 3056 goto error_out; 3057 3058 /* Perform the write access operation */ 3059 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 3060 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 3061 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 3062 switch (ctl_reg_id) { 3063 case LPFC_CTL_PORT_SEM: 3064 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3065 LPFC_CTL_PORT_SEM_OFFSET; 3066 break; 3067 case LPFC_CTL_PORT_STA: 3068 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3069 LPFC_CTL_PORT_STA_OFFSET; 3070 break; 3071 case LPFC_CTL_PORT_CTL: 3072 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3073 LPFC_CTL_PORT_CTL_OFFSET; 3074 break; 3075 case LPFC_CTL_PORT_ER1: 3076 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3077 LPFC_CTL_PORT_ER1_OFFSET; 3078 break; 3079 case LPFC_CTL_PORT_ER2: 3080 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3081 LPFC_CTL_PORT_ER2_OFFSET; 3082 break; 3083 case LPFC_CTL_PDEV_CTL: 3084 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3085 LPFC_CTL_PDEV_CTL_OFFSET; 3086 break; 3087 default: 3088 goto error_out; 3089 } 3090 3091 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 3092 reg_val = value; 3093 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 3094 reg_val = readl(ctl_reg); 3095 reg_val |= value; 3096 } 3097 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 3098 reg_val = readl(ctl_reg); 3099 reg_val &= ~value; 3100 } 3101 writel(reg_val, ctl_reg); 3102 readl(ctl_reg); /* flush */ 3103 } 3104 return nbytes; 3105 3106 error_out: 3107 /* Clean out command structure on command error out */ 3108 memset(&idiag, 0, sizeof(idiag)); 3109 return -EINVAL; 3110 } 3111 3112 /** 3113 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 3114 * @phba: Pointer to HBA context object. 3115 * @pbuffer: Pointer to data buffer. 3116 * 3117 * Description: 3118 * This routine gets the driver mailbox access debugfs setup information. 3119 * 3120 * Returns: 3121 * This function returns the amount of data that was read (this could be less 3122 * than @nbytes if the end of the file was reached) or a negative error value. 3123 **/ 3124 static int 3125 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 3126 { 3127 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 3128 int len = 0; 3129 3130 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3131 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3132 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3133 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3134 3135 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3136 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 3137 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3138 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 3139 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3140 "mbx_word_cnt: %04d\n", mbx_word_cnt); 3141 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3142 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 3143 3144 return len; 3145 } 3146 3147 /** 3148 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 3149 * @file: The file pointer to read from. 3150 * @buf: The buffer to copy the data to. 3151 * @nbytes: The number of bytes to read. 3152 * @ppos: The position in the file to start reading from. 3153 * 3154 * Description: 3155 * This routine reads data from the @phba driver mailbox access debugfs setup 3156 * information. 3157 * 3158 * Returns: 3159 * This function returns the amount of data that was read (this could be less 3160 * than @nbytes if the end of the file was reached) or a negative error value. 3161 **/ 3162 static ssize_t 3163 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 3164 loff_t *ppos) 3165 { 3166 struct lpfc_debug *debug = file->private_data; 3167 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3168 char *pbuffer; 3169 int len = 0; 3170 3171 /* This is a user read operation */ 3172 debug->op = LPFC_IDIAG_OP_RD; 3173 3174 if (!debug->buffer) 3175 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 3176 if (!debug->buffer) 3177 return 0; 3178 pbuffer = debug->buffer; 3179 3180 if (*ppos) 3181 return 0; 3182 3183 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 3184 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 3185 return 0; 3186 3187 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 3188 3189 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3190 } 3191 3192 /** 3193 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 3194 * @file: The file pointer to read from. 3195 * @buf: The buffer to copy the user data from. 3196 * @nbytes: The number of bytes to get. 3197 * @ppos: The position in the file to start reading from. 3198 * 3199 * This routine get the debugfs idiag command struct from user space and then 3200 * perform the syntax check for driver mailbox command (dump) and sets up the 3201 * necessary states in the idiag command struct accordingly. 3202 * 3203 * It returns the @nbytges passing in from debugfs user space when successful. 3204 * In case of error conditions, it returns proper error code back to the user 3205 * space. 3206 **/ 3207 static ssize_t 3208 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 3209 size_t nbytes, loff_t *ppos) 3210 { 3211 struct lpfc_debug *debug = file->private_data; 3212 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 3213 int rc; 3214 3215 /* This is a user write operation */ 3216 debug->op = LPFC_IDIAG_OP_WR; 3217 3218 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3219 if (rc < 0) 3220 return rc; 3221 3222 /* Sanity check on command line arguments */ 3223 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3224 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3225 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3226 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3227 3228 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 3229 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 3230 goto error_out; 3231 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 3232 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 3233 goto error_out; 3234 if (mbx_word_cnt > sizeof(MAILBOX_t)) 3235 goto error_out; 3236 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 3237 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 3238 goto error_out; 3239 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 3240 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 3241 goto error_out; 3242 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 3243 goto error_out; 3244 if (mbx_mbox_cmd != 0x9b) 3245 goto error_out; 3246 } else 3247 goto error_out; 3248 3249 if (mbx_word_cnt == 0) 3250 goto error_out; 3251 if (rc != LPFC_MBX_DMP_ARG) 3252 goto error_out; 3253 if (mbx_mbox_cmd & ~0xff) 3254 goto error_out; 3255 3256 /* condition for stop mailbox dump */ 3257 if (mbx_dump_cnt == 0) 3258 goto reset_out; 3259 3260 return nbytes; 3261 3262 reset_out: 3263 /* Clean out command structure on command error out */ 3264 memset(&idiag, 0, sizeof(idiag)); 3265 return nbytes; 3266 3267 error_out: 3268 /* Clean out command structure on command error out */ 3269 memset(&idiag, 0, sizeof(idiag)); 3270 return -EINVAL; 3271 } 3272 3273 /** 3274 * lpfc_idiag_extacc_avail_get - get the available extents information 3275 * @phba: pointer to lpfc hba data structure. 3276 * @pbuffer: pointer to internal buffer. 3277 * @len: length into the internal buffer data has been copied. 3278 * 3279 * Description: 3280 * This routine is to get the available extent information. 3281 * 3282 * Returns: 3283 * overall lenth of the data read into the internal buffer. 3284 **/ 3285 static int 3286 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 3287 { 3288 uint16_t ext_cnt, ext_size; 3289 3290 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3291 "\nAvailable Extents Information:\n"); 3292 3293 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3294 "\tPort Available VPI extents: "); 3295 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 3296 &ext_cnt, &ext_size); 3297 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3298 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3299 3300 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3301 "\tPort Available VFI extents: "); 3302 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 3303 &ext_cnt, &ext_size); 3304 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3305 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3306 3307 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3308 "\tPort Available RPI extents: "); 3309 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 3310 &ext_cnt, &ext_size); 3311 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3312 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3313 3314 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3315 "\tPort Available XRI extents: "); 3316 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 3317 &ext_cnt, &ext_size); 3318 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3319 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3320 3321 return len; 3322 } 3323 3324 /** 3325 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 3326 * @phba: pointer to lpfc hba data structure. 3327 * @pbuffer: pointer to internal buffer. 3328 * @len: length into the internal buffer data has been copied. 3329 * 3330 * Description: 3331 * This routine is to get the allocated extent information. 3332 * 3333 * Returns: 3334 * overall lenth of the data read into the internal buffer. 3335 **/ 3336 static int 3337 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 3338 { 3339 uint16_t ext_cnt, ext_size; 3340 int rc; 3341 3342 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3343 "\nAllocated Extents Information:\n"); 3344 3345 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3346 "\tHost Allocated VPI extents: "); 3347 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 3348 &ext_cnt, &ext_size); 3349 if (!rc) 3350 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3351 "Port %d Extent %3d, Size %3d\n", 3352 phba->brd_no, ext_cnt, ext_size); 3353 else 3354 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3355 "N/A\n"); 3356 3357 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3358 "\tHost Allocated VFI extents: "); 3359 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 3360 &ext_cnt, &ext_size); 3361 if (!rc) 3362 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3363 "Port %d Extent %3d, Size %3d\n", 3364 phba->brd_no, ext_cnt, ext_size); 3365 else 3366 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3367 "N/A\n"); 3368 3369 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3370 "\tHost Allocated RPI extents: "); 3371 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 3372 &ext_cnt, &ext_size); 3373 if (!rc) 3374 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3375 "Port %d Extent %3d, Size %3d\n", 3376 phba->brd_no, ext_cnt, ext_size); 3377 else 3378 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3379 "N/A\n"); 3380 3381 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3382 "\tHost Allocated XRI extents: "); 3383 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 3384 &ext_cnt, &ext_size); 3385 if (!rc) 3386 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3387 "Port %d Extent %3d, Size %3d\n", 3388 phba->brd_no, ext_cnt, ext_size); 3389 else 3390 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3391 "N/A\n"); 3392 3393 return len; 3394 } 3395 3396 /** 3397 * lpfc_idiag_extacc_drivr_get - get driver extent information 3398 * @phba: pointer to lpfc hba data structure. 3399 * @pbuffer: pointer to internal buffer. 3400 * @len: length into the internal buffer data has been copied. 3401 * 3402 * Description: 3403 * This routine is to get the driver extent information. 3404 * 3405 * Returns: 3406 * overall lenth of the data read into the internal buffer. 3407 **/ 3408 static int 3409 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 3410 { 3411 struct lpfc_rsrc_blks *rsrc_blks; 3412 int index; 3413 3414 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3415 "\nDriver Extents Information:\n"); 3416 3417 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3418 "\tVPI extents:\n"); 3419 index = 0; 3420 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 3421 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3422 "\t\tBlock %3d: Start %4d, Count %4d\n", 3423 index, rsrc_blks->rsrc_start, 3424 rsrc_blks->rsrc_size); 3425 index++; 3426 } 3427 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3428 "\tVFI extents:\n"); 3429 index = 0; 3430 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 3431 list) { 3432 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3433 "\t\tBlock %3d: Start %4d, Count %4d\n", 3434 index, rsrc_blks->rsrc_start, 3435 rsrc_blks->rsrc_size); 3436 index++; 3437 } 3438 3439 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3440 "\tRPI extents:\n"); 3441 index = 0; 3442 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 3443 list) { 3444 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3445 "\t\tBlock %3d: Start %4d, Count %4d\n", 3446 index, rsrc_blks->rsrc_start, 3447 rsrc_blks->rsrc_size); 3448 index++; 3449 } 3450 3451 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3452 "\tXRI extents:\n"); 3453 index = 0; 3454 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 3455 list) { 3456 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3457 "\t\tBlock %3d: Start %4d, Count %4d\n", 3458 index, rsrc_blks->rsrc_start, 3459 rsrc_blks->rsrc_size); 3460 index++; 3461 } 3462 3463 return len; 3464 } 3465 3466 /** 3467 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 3468 * @file: The file pointer to read from. 3469 * @buf: The buffer to copy the user data from. 3470 * @nbytes: The number of bytes to get. 3471 * @ppos: The position in the file to start reading from. 3472 * 3473 * This routine get the debugfs idiag command struct from user space and then 3474 * perform the syntax check for extent information access commands and sets 3475 * up the necessary states in the idiag command struct accordingly. 3476 * 3477 * It returns the @nbytges passing in from debugfs user space when successful. 3478 * In case of error conditions, it returns proper error code back to the user 3479 * space. 3480 **/ 3481 static ssize_t 3482 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 3483 size_t nbytes, loff_t *ppos) 3484 { 3485 struct lpfc_debug *debug = file->private_data; 3486 uint32_t ext_map; 3487 int rc; 3488 3489 /* This is a user write operation */ 3490 debug->op = LPFC_IDIAG_OP_WR; 3491 3492 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3493 if (rc < 0) 3494 return rc; 3495 3496 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 3497 3498 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 3499 goto error_out; 3500 if (rc != LPFC_EXT_ACC_CMD_ARG) 3501 goto error_out; 3502 if (!(ext_map & LPFC_EXT_ACC_ALL)) 3503 goto error_out; 3504 3505 return nbytes; 3506 error_out: 3507 /* Clean out command structure on command error out */ 3508 memset(&idiag, 0, sizeof(idiag)); 3509 return -EINVAL; 3510 } 3511 3512 /** 3513 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 3514 * @file: The file pointer to read from. 3515 * @buf: The buffer to copy the data to. 3516 * @nbytes: The number of bytes to read. 3517 * @ppos: The position in the file to start reading from. 3518 * 3519 * Description: 3520 * This routine reads data from the proper extent information according to 3521 * the idiag command, and copies to user @buf. 3522 * 3523 * Returns: 3524 * This function returns the amount of data that was read (this could be less 3525 * than @nbytes if the end of the file was reached) or a negative error value. 3526 **/ 3527 static ssize_t 3528 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 3529 loff_t *ppos) 3530 { 3531 struct lpfc_debug *debug = file->private_data; 3532 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3533 char *pbuffer; 3534 uint32_t ext_map; 3535 int len = 0; 3536 3537 /* This is a user read operation */ 3538 debug->op = LPFC_IDIAG_OP_RD; 3539 3540 if (!debug->buffer) 3541 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 3542 if (!debug->buffer) 3543 return 0; 3544 pbuffer = debug->buffer; 3545 if (*ppos) 3546 return 0; 3547 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 3548 return 0; 3549 3550 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 3551 if (ext_map & LPFC_EXT_ACC_AVAIL) 3552 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 3553 if (ext_map & LPFC_EXT_ACC_ALLOC) 3554 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 3555 if (ext_map & LPFC_EXT_ACC_DRIVR) 3556 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 3557 3558 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3559 } 3560 3561 #undef lpfc_debugfs_op_disc_trc 3562 static const struct file_operations lpfc_debugfs_op_disc_trc = { 3563 .owner = THIS_MODULE, 3564 .open = lpfc_debugfs_disc_trc_open, 3565 .llseek = lpfc_debugfs_lseek, 3566 .read = lpfc_debugfs_read, 3567 .release = lpfc_debugfs_release, 3568 }; 3569 3570 #undef lpfc_debugfs_op_nodelist 3571 static const struct file_operations lpfc_debugfs_op_nodelist = { 3572 .owner = THIS_MODULE, 3573 .open = lpfc_debugfs_nodelist_open, 3574 .llseek = lpfc_debugfs_lseek, 3575 .read = lpfc_debugfs_read, 3576 .release = lpfc_debugfs_release, 3577 }; 3578 3579 #undef lpfc_debugfs_op_hbqinfo 3580 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 3581 .owner = THIS_MODULE, 3582 .open = lpfc_debugfs_hbqinfo_open, 3583 .llseek = lpfc_debugfs_lseek, 3584 .read = lpfc_debugfs_read, 3585 .release = lpfc_debugfs_release, 3586 }; 3587 3588 #undef lpfc_debugfs_op_dumpHBASlim 3589 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 3590 .owner = THIS_MODULE, 3591 .open = lpfc_debugfs_dumpHBASlim_open, 3592 .llseek = lpfc_debugfs_lseek, 3593 .read = lpfc_debugfs_read, 3594 .release = lpfc_debugfs_release, 3595 }; 3596 3597 #undef lpfc_debugfs_op_dumpHostSlim 3598 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 3599 .owner = THIS_MODULE, 3600 .open = lpfc_debugfs_dumpHostSlim_open, 3601 .llseek = lpfc_debugfs_lseek, 3602 .read = lpfc_debugfs_read, 3603 .release = lpfc_debugfs_release, 3604 }; 3605 3606 #undef lpfc_debugfs_op_dumpData 3607 static const struct file_operations lpfc_debugfs_op_dumpData = { 3608 .owner = THIS_MODULE, 3609 .open = lpfc_debugfs_dumpData_open, 3610 .llseek = lpfc_debugfs_lseek, 3611 .read = lpfc_debugfs_read, 3612 .write = lpfc_debugfs_dumpDataDif_write, 3613 .release = lpfc_debugfs_dumpDataDif_release, 3614 }; 3615 3616 #undef lpfc_debugfs_op_dumpDif 3617 static const struct file_operations lpfc_debugfs_op_dumpDif = { 3618 .owner = THIS_MODULE, 3619 .open = lpfc_debugfs_dumpDif_open, 3620 .llseek = lpfc_debugfs_lseek, 3621 .read = lpfc_debugfs_read, 3622 .write = lpfc_debugfs_dumpDataDif_write, 3623 .release = lpfc_debugfs_dumpDataDif_release, 3624 }; 3625 3626 #undef lpfc_debugfs_op_dif_err 3627 static const struct file_operations lpfc_debugfs_op_dif_err = { 3628 .owner = THIS_MODULE, 3629 .open = simple_open, 3630 .llseek = lpfc_debugfs_lseek, 3631 .read = lpfc_debugfs_dif_err_read, 3632 .write = lpfc_debugfs_dif_err_write, 3633 .release = lpfc_debugfs_dif_err_release, 3634 }; 3635 3636 #undef lpfc_debugfs_op_slow_ring_trc 3637 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 3638 .owner = THIS_MODULE, 3639 .open = lpfc_debugfs_slow_ring_trc_open, 3640 .llseek = lpfc_debugfs_lseek, 3641 .read = lpfc_debugfs_read, 3642 .release = lpfc_debugfs_release, 3643 }; 3644 3645 static struct dentry *lpfc_debugfs_root = NULL; 3646 static atomic_t lpfc_debugfs_hba_count; 3647 3648 /* 3649 * File operations for the iDiag debugfs 3650 */ 3651 #undef lpfc_idiag_op_pciCfg 3652 static const struct file_operations lpfc_idiag_op_pciCfg = { 3653 .owner = THIS_MODULE, 3654 .open = lpfc_idiag_open, 3655 .llseek = lpfc_debugfs_lseek, 3656 .read = lpfc_idiag_pcicfg_read, 3657 .write = lpfc_idiag_pcicfg_write, 3658 .release = lpfc_idiag_cmd_release, 3659 }; 3660 3661 #undef lpfc_idiag_op_barAcc 3662 static const struct file_operations lpfc_idiag_op_barAcc = { 3663 .owner = THIS_MODULE, 3664 .open = lpfc_idiag_open, 3665 .llseek = lpfc_debugfs_lseek, 3666 .read = lpfc_idiag_baracc_read, 3667 .write = lpfc_idiag_baracc_write, 3668 .release = lpfc_idiag_cmd_release, 3669 }; 3670 3671 #undef lpfc_idiag_op_queInfo 3672 static const struct file_operations lpfc_idiag_op_queInfo = { 3673 .owner = THIS_MODULE, 3674 .open = lpfc_idiag_open, 3675 .read = lpfc_idiag_queinfo_read, 3676 .release = lpfc_idiag_release, 3677 }; 3678 3679 #undef lpfc_idiag_op_queAcc 3680 static const struct file_operations lpfc_idiag_op_queAcc = { 3681 .owner = THIS_MODULE, 3682 .open = lpfc_idiag_open, 3683 .llseek = lpfc_debugfs_lseek, 3684 .read = lpfc_idiag_queacc_read, 3685 .write = lpfc_idiag_queacc_write, 3686 .release = lpfc_idiag_cmd_release, 3687 }; 3688 3689 #undef lpfc_idiag_op_drbAcc 3690 static const struct file_operations lpfc_idiag_op_drbAcc = { 3691 .owner = THIS_MODULE, 3692 .open = lpfc_idiag_open, 3693 .llseek = lpfc_debugfs_lseek, 3694 .read = lpfc_idiag_drbacc_read, 3695 .write = lpfc_idiag_drbacc_write, 3696 .release = lpfc_idiag_cmd_release, 3697 }; 3698 3699 #undef lpfc_idiag_op_ctlAcc 3700 static const struct file_operations lpfc_idiag_op_ctlAcc = { 3701 .owner = THIS_MODULE, 3702 .open = lpfc_idiag_open, 3703 .llseek = lpfc_debugfs_lseek, 3704 .read = lpfc_idiag_ctlacc_read, 3705 .write = lpfc_idiag_ctlacc_write, 3706 .release = lpfc_idiag_cmd_release, 3707 }; 3708 3709 #undef lpfc_idiag_op_mbxAcc 3710 static const struct file_operations lpfc_idiag_op_mbxAcc = { 3711 .owner = THIS_MODULE, 3712 .open = lpfc_idiag_open, 3713 .llseek = lpfc_debugfs_lseek, 3714 .read = lpfc_idiag_mbxacc_read, 3715 .write = lpfc_idiag_mbxacc_write, 3716 .release = lpfc_idiag_cmd_release, 3717 }; 3718 3719 #undef lpfc_idiag_op_extAcc 3720 static const struct file_operations lpfc_idiag_op_extAcc = { 3721 .owner = THIS_MODULE, 3722 .open = lpfc_idiag_open, 3723 .llseek = lpfc_debugfs_lseek, 3724 .read = lpfc_idiag_extacc_read, 3725 .write = lpfc_idiag_extacc_write, 3726 .release = lpfc_idiag_cmd_release, 3727 }; 3728 3729 #endif 3730 3731 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 3732 * @phba: Pointer to HBA context object. 3733 * @dmabuf: Pointer to a DMA buffer descriptor. 3734 * 3735 * Description: 3736 * This routine dump a bsg pass-through non-embedded mailbox command with 3737 * external buffer. 3738 **/ 3739 void 3740 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 3741 enum mbox_type mbox_tp, enum dma_type dma_tp, 3742 enum sta_type sta_tp, 3743 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 3744 { 3745 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3746 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 3747 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 3748 int len = 0; 3749 uint32_t do_dump = 0; 3750 uint32_t *pword; 3751 uint32_t i; 3752 3753 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 3754 return; 3755 3756 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3757 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3758 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3759 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3760 3761 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 3762 (*mbx_dump_cnt == 0) || 3763 (*mbx_word_cnt == 0)) 3764 return; 3765 3766 if (*mbx_mbox_cmd != 0x9B) 3767 return; 3768 3769 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 3770 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 3771 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 3772 printk(KERN_ERR "\nRead mbox command (x%x), " 3773 "nemb:0x%x, extbuf_cnt:%d:\n", 3774 sta_tp, nemb_tp, ext_buf); 3775 } 3776 } 3777 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 3778 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 3779 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 3780 printk(KERN_ERR "\nRead mbox buffer (x%x), " 3781 "nemb:0x%x, extbuf_seq:%d:\n", 3782 sta_tp, nemb_tp, ext_buf); 3783 } 3784 } 3785 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 3786 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 3787 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 3788 printk(KERN_ERR "\nWrite mbox command (x%x), " 3789 "nemb:0x%x, extbuf_cnt:%d:\n", 3790 sta_tp, nemb_tp, ext_buf); 3791 } 3792 } 3793 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 3794 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 3795 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 3796 printk(KERN_ERR "\nWrite mbox buffer (x%x), " 3797 "nemb:0x%x, extbuf_seq:%d:\n", 3798 sta_tp, nemb_tp, ext_buf); 3799 } 3800 } 3801 3802 /* dump buffer content */ 3803 if (do_dump) { 3804 pword = (uint32_t *)dmabuf->virt; 3805 for (i = 0; i < *mbx_word_cnt; i++) { 3806 if (!(i % 8)) { 3807 if (i != 0) 3808 printk(KERN_ERR "%s\n", line_buf); 3809 len = 0; 3810 len += snprintf(line_buf+len, 3811 LPFC_MBX_ACC_LBUF_SZ-len, 3812 "%03d: ", i); 3813 } 3814 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 3815 "%08x ", (uint32_t)*pword); 3816 pword++; 3817 } 3818 if ((i - 1) % 8) 3819 printk(KERN_ERR "%s\n", line_buf); 3820 (*mbx_dump_cnt)--; 3821 } 3822 3823 /* Clean out command structure on reaching dump count */ 3824 if (*mbx_dump_cnt == 0) 3825 memset(&idiag, 0, sizeof(idiag)); 3826 return; 3827 #endif 3828 } 3829 3830 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 3831 * @phba: Pointer to HBA context object. 3832 * @dmabuf: Pointer to a DMA buffer descriptor. 3833 * 3834 * Description: 3835 * This routine dump a pass-through non-embedded mailbox command from issue 3836 * mailbox command. 3837 **/ 3838 void 3839 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 3840 { 3841 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3842 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 3843 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 3844 int len = 0; 3845 uint32_t *pword; 3846 uint8_t *pbyte; 3847 uint32_t i, j; 3848 3849 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 3850 return; 3851 3852 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3853 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3854 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3855 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3856 3857 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 3858 (*mbx_dump_cnt == 0) || 3859 (*mbx_word_cnt == 0)) 3860 return; 3861 3862 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 3863 (*mbx_mbox_cmd != pmbox->mbxCommand)) 3864 return; 3865 3866 /* dump buffer content */ 3867 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 3868 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n", 3869 pmbox->mbxCommand); 3870 pword = (uint32_t *)pmbox; 3871 for (i = 0; i < *mbx_word_cnt; i++) { 3872 if (!(i % 8)) { 3873 if (i != 0) 3874 printk(KERN_ERR "%s\n", line_buf); 3875 len = 0; 3876 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 3877 len += snprintf(line_buf+len, 3878 LPFC_MBX_ACC_LBUF_SZ-len, 3879 "%03d: ", i); 3880 } 3881 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 3882 "%08x ", 3883 ((uint32_t)*pword) & 0xffffffff); 3884 pword++; 3885 } 3886 if ((i - 1) % 8) 3887 printk(KERN_ERR "%s\n", line_buf); 3888 printk(KERN_ERR "\n"); 3889 } 3890 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 3891 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n", 3892 pmbox->mbxCommand); 3893 pbyte = (uint8_t *)pmbox; 3894 for (i = 0; i < *mbx_word_cnt; i++) { 3895 if (!(i % 8)) { 3896 if (i != 0) 3897 printk(KERN_ERR "%s\n", line_buf); 3898 len = 0; 3899 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 3900 len += snprintf(line_buf+len, 3901 LPFC_MBX_ACC_LBUF_SZ-len, 3902 "%03d: ", i); 3903 } 3904 for (j = 0; j < 4; j++) { 3905 len += snprintf(line_buf+len, 3906 LPFC_MBX_ACC_LBUF_SZ-len, 3907 "%02x", 3908 ((uint8_t)*pbyte) & 0xff); 3909 pbyte++; 3910 } 3911 len += snprintf(line_buf+len, 3912 LPFC_MBX_ACC_LBUF_SZ-len, " "); 3913 } 3914 if ((i - 1) % 8) 3915 printk(KERN_ERR "%s\n", line_buf); 3916 printk(KERN_ERR "\n"); 3917 } 3918 (*mbx_dump_cnt)--; 3919 3920 /* Clean out command structure on reaching dump count */ 3921 if (*mbx_dump_cnt == 0) 3922 memset(&idiag, 0, sizeof(idiag)); 3923 return; 3924 #endif 3925 } 3926 3927 /** 3928 * lpfc_debugfs_initialize - Initialize debugfs for a vport 3929 * @vport: The vport pointer to initialize. 3930 * 3931 * Description: 3932 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 3933 * If not already created, this routine will create the lpfc directory, and 3934 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 3935 * also create each file used to access lpfc specific debugfs information. 3936 **/ 3937 inline void 3938 lpfc_debugfs_initialize(struct lpfc_vport *vport) 3939 { 3940 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3941 struct lpfc_hba *phba = vport->phba; 3942 char name[64]; 3943 uint32_t num, i; 3944 3945 if (!lpfc_debugfs_enable) 3946 return; 3947 3948 /* Setup lpfc root directory */ 3949 if (!lpfc_debugfs_root) { 3950 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 3951 atomic_set(&lpfc_debugfs_hba_count, 0); 3952 if (!lpfc_debugfs_root) { 3953 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3954 "0408 Cannot create debugfs root\n"); 3955 goto debug_failed; 3956 } 3957 } 3958 if (!lpfc_debugfs_start_time) 3959 lpfc_debugfs_start_time = jiffies; 3960 3961 /* Setup funcX directory for specific HBA PCI function */ 3962 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 3963 if (!phba->hba_debugfs_root) { 3964 phba->hba_debugfs_root = 3965 debugfs_create_dir(name, lpfc_debugfs_root); 3966 if (!phba->hba_debugfs_root) { 3967 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3968 "0412 Cannot create debugfs hba\n"); 3969 goto debug_failed; 3970 } 3971 atomic_inc(&lpfc_debugfs_hba_count); 3972 atomic_set(&phba->debugfs_vport_count, 0); 3973 3974 /* Setup hbqinfo */ 3975 snprintf(name, sizeof(name), "hbqinfo"); 3976 phba->debug_hbqinfo = 3977 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3978 phba->hba_debugfs_root, 3979 phba, &lpfc_debugfs_op_hbqinfo); 3980 if (!phba->debug_hbqinfo) { 3981 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3982 "0411 Cannot create debugfs hbqinfo\n"); 3983 goto debug_failed; 3984 } 3985 3986 /* Setup dumpHBASlim */ 3987 if (phba->sli_rev < LPFC_SLI_REV4) { 3988 snprintf(name, sizeof(name), "dumpHBASlim"); 3989 phba->debug_dumpHBASlim = 3990 debugfs_create_file(name, 3991 S_IFREG|S_IRUGO|S_IWUSR, 3992 phba->hba_debugfs_root, 3993 phba, &lpfc_debugfs_op_dumpHBASlim); 3994 if (!phba->debug_dumpHBASlim) { 3995 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3996 "0413 Cannot create debugfs " 3997 "dumpHBASlim\n"); 3998 goto debug_failed; 3999 } 4000 } else 4001 phba->debug_dumpHBASlim = NULL; 4002 4003 /* Setup dumpHostSlim */ 4004 if (phba->sli_rev < LPFC_SLI_REV4) { 4005 snprintf(name, sizeof(name), "dumpHostSlim"); 4006 phba->debug_dumpHostSlim = 4007 debugfs_create_file(name, 4008 S_IFREG|S_IRUGO|S_IWUSR, 4009 phba->hba_debugfs_root, 4010 phba, &lpfc_debugfs_op_dumpHostSlim); 4011 if (!phba->debug_dumpHostSlim) { 4012 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4013 "0414 Cannot create debugfs " 4014 "dumpHostSlim\n"); 4015 goto debug_failed; 4016 } 4017 } else 4018 phba->debug_dumpHBASlim = NULL; 4019 4020 /* Setup dumpData */ 4021 snprintf(name, sizeof(name), "dumpData"); 4022 phba->debug_dumpData = 4023 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4024 phba->hba_debugfs_root, 4025 phba, &lpfc_debugfs_op_dumpData); 4026 if (!phba->debug_dumpData) { 4027 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4028 "0800 Cannot create debugfs dumpData\n"); 4029 goto debug_failed; 4030 } 4031 4032 /* Setup dumpDif */ 4033 snprintf(name, sizeof(name), "dumpDif"); 4034 phba->debug_dumpDif = 4035 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4036 phba->hba_debugfs_root, 4037 phba, &lpfc_debugfs_op_dumpDif); 4038 if (!phba->debug_dumpDif) { 4039 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4040 "0801 Cannot create debugfs dumpDif\n"); 4041 goto debug_failed; 4042 } 4043 4044 /* Setup DIF Error Injections */ 4045 snprintf(name, sizeof(name), "InjErrLBA"); 4046 phba->debug_InjErrLBA = 4047 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4048 phba->hba_debugfs_root, 4049 phba, &lpfc_debugfs_op_dif_err); 4050 if (!phba->debug_InjErrLBA) { 4051 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4052 "0807 Cannot create debugfs InjErrLBA\n"); 4053 goto debug_failed; 4054 } 4055 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 4056 4057 snprintf(name, sizeof(name), "InjErrNPortID"); 4058 phba->debug_InjErrNPortID = 4059 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4060 phba->hba_debugfs_root, 4061 phba, &lpfc_debugfs_op_dif_err); 4062 if (!phba->debug_InjErrNPortID) { 4063 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4064 "0809 Cannot create debugfs InjErrNPortID\n"); 4065 goto debug_failed; 4066 } 4067 4068 snprintf(name, sizeof(name), "InjErrWWPN"); 4069 phba->debug_InjErrWWPN = 4070 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4071 phba->hba_debugfs_root, 4072 phba, &lpfc_debugfs_op_dif_err); 4073 if (!phba->debug_InjErrWWPN) { 4074 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4075 "0810 Cannot create debugfs InjErrWWPN\n"); 4076 goto debug_failed; 4077 } 4078 4079 snprintf(name, sizeof(name), "writeGuardInjErr"); 4080 phba->debug_writeGuard = 4081 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4082 phba->hba_debugfs_root, 4083 phba, &lpfc_debugfs_op_dif_err); 4084 if (!phba->debug_writeGuard) { 4085 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4086 "0802 Cannot create debugfs writeGuard\n"); 4087 goto debug_failed; 4088 } 4089 4090 snprintf(name, sizeof(name), "writeAppInjErr"); 4091 phba->debug_writeApp = 4092 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4093 phba->hba_debugfs_root, 4094 phba, &lpfc_debugfs_op_dif_err); 4095 if (!phba->debug_writeApp) { 4096 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4097 "0803 Cannot create debugfs writeApp\n"); 4098 goto debug_failed; 4099 } 4100 4101 snprintf(name, sizeof(name), "writeRefInjErr"); 4102 phba->debug_writeRef = 4103 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4104 phba->hba_debugfs_root, 4105 phba, &lpfc_debugfs_op_dif_err); 4106 if (!phba->debug_writeRef) { 4107 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4108 "0804 Cannot create debugfs writeRef\n"); 4109 goto debug_failed; 4110 } 4111 4112 snprintf(name, sizeof(name), "readGuardInjErr"); 4113 phba->debug_readGuard = 4114 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4115 phba->hba_debugfs_root, 4116 phba, &lpfc_debugfs_op_dif_err); 4117 if (!phba->debug_readGuard) { 4118 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4119 "0808 Cannot create debugfs readGuard\n"); 4120 goto debug_failed; 4121 } 4122 4123 snprintf(name, sizeof(name), "readAppInjErr"); 4124 phba->debug_readApp = 4125 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4126 phba->hba_debugfs_root, 4127 phba, &lpfc_debugfs_op_dif_err); 4128 if (!phba->debug_readApp) { 4129 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4130 "0805 Cannot create debugfs readApp\n"); 4131 goto debug_failed; 4132 } 4133 4134 snprintf(name, sizeof(name), "readRefInjErr"); 4135 phba->debug_readRef = 4136 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4137 phba->hba_debugfs_root, 4138 phba, &lpfc_debugfs_op_dif_err); 4139 if (!phba->debug_readRef) { 4140 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4141 "0806 Cannot create debugfs readApp\n"); 4142 goto debug_failed; 4143 } 4144 4145 /* Setup slow ring trace */ 4146 if (lpfc_debugfs_max_slow_ring_trc) { 4147 num = lpfc_debugfs_max_slow_ring_trc - 1; 4148 if (num & lpfc_debugfs_max_slow_ring_trc) { 4149 /* Change to be a power of 2 */ 4150 num = lpfc_debugfs_max_slow_ring_trc; 4151 i = 0; 4152 while (num > 1) { 4153 num = num >> 1; 4154 i++; 4155 } 4156 lpfc_debugfs_max_slow_ring_trc = (1 << i); 4157 printk(KERN_ERR 4158 "lpfc_debugfs_max_disc_trc changed to " 4159 "%d\n", lpfc_debugfs_max_disc_trc); 4160 } 4161 } 4162 4163 snprintf(name, sizeof(name), "slow_ring_trace"); 4164 phba->debug_slow_ring_trc = 4165 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4166 phba->hba_debugfs_root, 4167 phba, &lpfc_debugfs_op_slow_ring_trc); 4168 if (!phba->debug_slow_ring_trc) { 4169 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4170 "0415 Cannot create debugfs " 4171 "slow_ring_trace\n"); 4172 goto debug_failed; 4173 } 4174 if (!phba->slow_ring_trc) { 4175 phba->slow_ring_trc = kmalloc( 4176 (sizeof(struct lpfc_debugfs_trc) * 4177 lpfc_debugfs_max_slow_ring_trc), 4178 GFP_KERNEL); 4179 if (!phba->slow_ring_trc) { 4180 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4181 "0416 Cannot create debugfs " 4182 "slow_ring buffer\n"); 4183 goto debug_failed; 4184 } 4185 atomic_set(&phba->slow_ring_trc_cnt, 0); 4186 memset(phba->slow_ring_trc, 0, 4187 (sizeof(struct lpfc_debugfs_trc) * 4188 lpfc_debugfs_max_slow_ring_trc)); 4189 } 4190 } 4191 4192 snprintf(name, sizeof(name), "vport%d", vport->vpi); 4193 if (!vport->vport_debugfs_root) { 4194 vport->vport_debugfs_root = 4195 debugfs_create_dir(name, phba->hba_debugfs_root); 4196 if (!vport->vport_debugfs_root) { 4197 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4198 "0417 Can't create debugfs\n"); 4199 goto debug_failed; 4200 } 4201 atomic_inc(&phba->debugfs_vport_count); 4202 } 4203 4204 if (lpfc_debugfs_max_disc_trc) { 4205 num = lpfc_debugfs_max_disc_trc - 1; 4206 if (num & lpfc_debugfs_max_disc_trc) { 4207 /* Change to be a power of 2 */ 4208 num = lpfc_debugfs_max_disc_trc; 4209 i = 0; 4210 while (num > 1) { 4211 num = num >> 1; 4212 i++; 4213 } 4214 lpfc_debugfs_max_disc_trc = (1 << i); 4215 printk(KERN_ERR 4216 "lpfc_debugfs_max_disc_trc changed to %d\n", 4217 lpfc_debugfs_max_disc_trc); 4218 } 4219 } 4220 4221 vport->disc_trc = kzalloc( 4222 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 4223 GFP_KERNEL); 4224 4225 if (!vport->disc_trc) { 4226 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4227 "0418 Cannot create debugfs disc trace " 4228 "buffer\n"); 4229 goto debug_failed; 4230 } 4231 atomic_set(&vport->disc_trc_cnt, 0); 4232 4233 snprintf(name, sizeof(name), "discovery_trace"); 4234 vport->debug_disc_trc = 4235 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4236 vport->vport_debugfs_root, 4237 vport, &lpfc_debugfs_op_disc_trc); 4238 if (!vport->debug_disc_trc) { 4239 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4240 "0419 Cannot create debugfs " 4241 "discovery_trace\n"); 4242 goto debug_failed; 4243 } 4244 snprintf(name, sizeof(name), "nodelist"); 4245 vport->debug_nodelist = 4246 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4247 vport->vport_debugfs_root, 4248 vport, &lpfc_debugfs_op_nodelist); 4249 if (!vport->debug_nodelist) { 4250 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4251 "2985 Can't create debugfs nodelist\n"); 4252 goto debug_failed; 4253 } 4254 4255 /* 4256 * iDiag debugfs root entry points for SLI4 device only 4257 */ 4258 if (phba->sli_rev < LPFC_SLI_REV4) 4259 goto debug_failed; 4260 4261 snprintf(name, sizeof(name), "iDiag"); 4262 if (!phba->idiag_root) { 4263 phba->idiag_root = 4264 debugfs_create_dir(name, phba->hba_debugfs_root); 4265 if (!phba->idiag_root) { 4266 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4267 "2922 Can't create idiag debugfs\n"); 4268 goto debug_failed; 4269 } 4270 /* Initialize iDiag data structure */ 4271 memset(&idiag, 0, sizeof(idiag)); 4272 } 4273 4274 /* iDiag read PCI config space */ 4275 snprintf(name, sizeof(name), "pciCfg"); 4276 if (!phba->idiag_pci_cfg) { 4277 phba->idiag_pci_cfg = 4278 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4279 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 4280 if (!phba->idiag_pci_cfg) { 4281 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4282 "2923 Can't create idiag debugfs\n"); 4283 goto debug_failed; 4284 } 4285 idiag.offset.last_rd = 0; 4286 } 4287 4288 /* iDiag PCI BAR access */ 4289 snprintf(name, sizeof(name), "barAcc"); 4290 if (!phba->idiag_bar_acc) { 4291 phba->idiag_bar_acc = 4292 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4293 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 4294 if (!phba->idiag_bar_acc) { 4295 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4296 "3056 Can't create idiag debugfs\n"); 4297 goto debug_failed; 4298 } 4299 idiag.offset.last_rd = 0; 4300 } 4301 4302 /* iDiag get PCI function queue information */ 4303 snprintf(name, sizeof(name), "queInfo"); 4304 if (!phba->idiag_que_info) { 4305 phba->idiag_que_info = 4306 debugfs_create_file(name, S_IFREG|S_IRUGO, 4307 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 4308 if (!phba->idiag_que_info) { 4309 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4310 "2924 Can't create idiag debugfs\n"); 4311 goto debug_failed; 4312 } 4313 } 4314 4315 /* iDiag access PCI function queue */ 4316 snprintf(name, sizeof(name), "queAcc"); 4317 if (!phba->idiag_que_acc) { 4318 phba->idiag_que_acc = 4319 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4320 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 4321 if (!phba->idiag_que_acc) { 4322 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4323 "2926 Can't create idiag debugfs\n"); 4324 goto debug_failed; 4325 } 4326 } 4327 4328 /* iDiag access PCI function doorbell registers */ 4329 snprintf(name, sizeof(name), "drbAcc"); 4330 if (!phba->idiag_drb_acc) { 4331 phba->idiag_drb_acc = 4332 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4333 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 4334 if (!phba->idiag_drb_acc) { 4335 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4336 "2927 Can't create idiag debugfs\n"); 4337 goto debug_failed; 4338 } 4339 } 4340 4341 /* iDiag access PCI function control registers */ 4342 snprintf(name, sizeof(name), "ctlAcc"); 4343 if (!phba->idiag_ctl_acc) { 4344 phba->idiag_ctl_acc = 4345 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4346 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 4347 if (!phba->idiag_ctl_acc) { 4348 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4349 "2981 Can't create idiag debugfs\n"); 4350 goto debug_failed; 4351 } 4352 } 4353 4354 /* iDiag access mbox commands */ 4355 snprintf(name, sizeof(name), "mbxAcc"); 4356 if (!phba->idiag_mbx_acc) { 4357 phba->idiag_mbx_acc = 4358 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4359 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 4360 if (!phba->idiag_mbx_acc) { 4361 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4362 "2980 Can't create idiag debugfs\n"); 4363 goto debug_failed; 4364 } 4365 } 4366 4367 /* iDiag extents access commands */ 4368 if (phba->sli4_hba.extents_in_use) { 4369 snprintf(name, sizeof(name), "extAcc"); 4370 if (!phba->idiag_ext_acc) { 4371 phba->idiag_ext_acc = 4372 debugfs_create_file(name, 4373 S_IFREG|S_IRUGO|S_IWUSR, 4374 phba->idiag_root, phba, 4375 &lpfc_idiag_op_extAcc); 4376 if (!phba->idiag_ext_acc) { 4377 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4378 "2986 Cant create " 4379 "idiag debugfs\n"); 4380 goto debug_failed; 4381 } 4382 } 4383 } 4384 4385 debug_failed: 4386 return; 4387 #endif 4388 } 4389 4390 /** 4391 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 4392 * @vport: The vport pointer to remove from debugfs. 4393 * 4394 * Description: 4395 * When Debugfs is configured this routine removes debugfs file system elements 4396 * that are specific to this vport. It also checks to see if there are any 4397 * users left for the debugfs directories associated with the HBA and driver. If 4398 * this is the last user of the HBA directory or driver directory then it will 4399 * remove those from the debugfs infrastructure as well. 4400 **/ 4401 inline void 4402 lpfc_debugfs_terminate(struct lpfc_vport *vport) 4403 { 4404 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4405 struct lpfc_hba *phba = vport->phba; 4406 4407 if (vport->disc_trc) { 4408 kfree(vport->disc_trc); 4409 vport->disc_trc = NULL; 4410 } 4411 if (vport->debug_disc_trc) { 4412 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 4413 vport->debug_disc_trc = NULL; 4414 } 4415 if (vport->debug_nodelist) { 4416 debugfs_remove(vport->debug_nodelist); /* nodelist */ 4417 vport->debug_nodelist = NULL; 4418 } 4419 if (vport->vport_debugfs_root) { 4420 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 4421 vport->vport_debugfs_root = NULL; 4422 atomic_dec(&phba->debugfs_vport_count); 4423 } 4424 if (atomic_read(&phba->debugfs_vport_count) == 0) { 4425 4426 if (phba->debug_hbqinfo) { 4427 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 4428 phba->debug_hbqinfo = NULL; 4429 } 4430 if (phba->debug_dumpHBASlim) { 4431 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 4432 phba->debug_dumpHBASlim = NULL; 4433 } 4434 if (phba->debug_dumpHostSlim) { 4435 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 4436 phba->debug_dumpHostSlim = NULL; 4437 } 4438 if (phba->debug_dumpData) { 4439 debugfs_remove(phba->debug_dumpData); /* dumpData */ 4440 phba->debug_dumpData = NULL; 4441 } 4442 4443 if (phba->debug_dumpDif) { 4444 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 4445 phba->debug_dumpDif = NULL; 4446 } 4447 if (phba->debug_InjErrLBA) { 4448 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 4449 phba->debug_InjErrLBA = NULL; 4450 } 4451 if (phba->debug_InjErrNPortID) { /* InjErrNPortID */ 4452 debugfs_remove(phba->debug_InjErrNPortID); 4453 phba->debug_InjErrNPortID = NULL; 4454 } 4455 if (phba->debug_InjErrWWPN) { 4456 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 4457 phba->debug_InjErrWWPN = NULL; 4458 } 4459 if (phba->debug_writeGuard) { 4460 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 4461 phba->debug_writeGuard = NULL; 4462 } 4463 if (phba->debug_writeApp) { 4464 debugfs_remove(phba->debug_writeApp); /* writeApp */ 4465 phba->debug_writeApp = NULL; 4466 } 4467 if (phba->debug_writeRef) { 4468 debugfs_remove(phba->debug_writeRef); /* writeRef */ 4469 phba->debug_writeRef = NULL; 4470 } 4471 if (phba->debug_readGuard) { 4472 debugfs_remove(phba->debug_readGuard); /* readGuard */ 4473 phba->debug_readGuard = NULL; 4474 } 4475 if (phba->debug_readApp) { 4476 debugfs_remove(phba->debug_readApp); /* readApp */ 4477 phba->debug_readApp = NULL; 4478 } 4479 if (phba->debug_readRef) { 4480 debugfs_remove(phba->debug_readRef); /* readRef */ 4481 phba->debug_readRef = NULL; 4482 } 4483 4484 if (phba->slow_ring_trc) { 4485 kfree(phba->slow_ring_trc); 4486 phba->slow_ring_trc = NULL; 4487 } 4488 if (phba->debug_slow_ring_trc) { 4489 /* slow_ring_trace */ 4490 debugfs_remove(phba->debug_slow_ring_trc); 4491 phba->debug_slow_ring_trc = NULL; 4492 } 4493 4494 /* 4495 * iDiag release 4496 */ 4497 if (phba->sli_rev == LPFC_SLI_REV4) { 4498 if (phba->idiag_ext_acc) { 4499 /* iDiag extAcc */ 4500 debugfs_remove(phba->idiag_ext_acc); 4501 phba->idiag_ext_acc = NULL; 4502 } 4503 if (phba->idiag_mbx_acc) { 4504 /* iDiag mbxAcc */ 4505 debugfs_remove(phba->idiag_mbx_acc); 4506 phba->idiag_mbx_acc = NULL; 4507 } 4508 if (phba->idiag_ctl_acc) { 4509 /* iDiag ctlAcc */ 4510 debugfs_remove(phba->idiag_ctl_acc); 4511 phba->idiag_ctl_acc = NULL; 4512 } 4513 if (phba->idiag_drb_acc) { 4514 /* iDiag drbAcc */ 4515 debugfs_remove(phba->idiag_drb_acc); 4516 phba->idiag_drb_acc = NULL; 4517 } 4518 if (phba->idiag_que_acc) { 4519 /* iDiag queAcc */ 4520 debugfs_remove(phba->idiag_que_acc); 4521 phba->idiag_que_acc = NULL; 4522 } 4523 if (phba->idiag_que_info) { 4524 /* iDiag queInfo */ 4525 debugfs_remove(phba->idiag_que_info); 4526 phba->idiag_que_info = NULL; 4527 } 4528 if (phba->idiag_bar_acc) { 4529 /* iDiag barAcc */ 4530 debugfs_remove(phba->idiag_bar_acc); 4531 phba->idiag_bar_acc = NULL; 4532 } 4533 if (phba->idiag_pci_cfg) { 4534 /* iDiag pciCfg */ 4535 debugfs_remove(phba->idiag_pci_cfg); 4536 phba->idiag_pci_cfg = NULL; 4537 } 4538 4539 /* Finally remove the iDiag debugfs root */ 4540 if (phba->idiag_root) { 4541 /* iDiag root */ 4542 debugfs_remove(phba->idiag_root); 4543 phba->idiag_root = NULL; 4544 } 4545 } 4546 4547 if (phba->hba_debugfs_root) { 4548 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 4549 phba->hba_debugfs_root = NULL; 4550 atomic_dec(&lpfc_debugfs_hba_count); 4551 } 4552 4553 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 4554 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 4555 lpfc_debugfs_root = NULL; 4556 } 4557 } 4558 #endif 4559 return; 4560 } 4561 4562 /* 4563 * Driver debug utility routines outside of debugfs. The debug utility 4564 * routines implemented here is intended to be used in the instrumented 4565 * debug driver for debugging host or port issues. 4566 */ 4567 4568 /** 4569 * lpfc_debug_dump_all_queues - dump all the queues with a hba 4570 * @phba: Pointer to HBA context object. 4571 * 4572 * This function dumps entries of all the queues asociated with the @phba. 4573 **/ 4574 void 4575 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 4576 { 4577 int fcp_wqidx; 4578 4579 /* 4580 * Dump Work Queues (WQs) 4581 */ 4582 lpfc_debug_dump_mbx_wq(phba); 4583 lpfc_debug_dump_els_wq(phba); 4584 4585 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) 4586 lpfc_debug_dump_fcp_wq(phba, fcp_wqidx); 4587 4588 lpfc_debug_dump_hdr_rq(phba); 4589 lpfc_debug_dump_dat_rq(phba); 4590 /* 4591 * Dump Complete Queues (CQs) 4592 */ 4593 lpfc_debug_dump_mbx_cq(phba); 4594 lpfc_debug_dump_els_cq(phba); 4595 4596 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) 4597 lpfc_debug_dump_fcp_cq(phba, fcp_wqidx); 4598 4599 /* 4600 * Dump Event Queues (EQs) 4601 */ 4602 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) 4603 lpfc_debug_dump_hba_eq(phba, fcp_wqidx); 4604 } 4605