1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2007-2014 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 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; 282 283 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 = file->private_data; 1169 return fixed_size_llseek(file, off, whence, debug->len); 1170 } 1171 1172 /** 1173 * lpfc_debugfs_read - Read a debugfs file 1174 * @file: The file pointer to read from. 1175 * @buf: The buffer to copy the data to. 1176 * @nbytes: The number of bytes to read. 1177 * @ppos: The position in the file to start reading from. 1178 * 1179 * Description: 1180 * This routine reads data from from the buffer indicated in the private_data 1181 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1182 * data to @buf. 1183 * 1184 * Returns: 1185 * This function returns the amount of data that was read (this could be less 1186 * than @nbytes if the end of the file was reached) or a negative error value. 1187 **/ 1188 static ssize_t 1189 lpfc_debugfs_read(struct file *file, char __user *buf, 1190 size_t nbytes, loff_t *ppos) 1191 { 1192 struct lpfc_debug *debug = file->private_data; 1193 1194 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1195 debug->len); 1196 } 1197 1198 /** 1199 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1200 * @inode: The inode pointer that contains a vport pointer. (unused) 1201 * @file: The file pointer that contains the buffer to release. 1202 * 1203 * Description: 1204 * This routine frees the buffer that was allocated when the debugfs file was 1205 * opened. 1206 * 1207 * Returns: 1208 * This function returns zero. 1209 **/ 1210 static int 1211 lpfc_debugfs_release(struct inode *inode, struct file *file) 1212 { 1213 struct lpfc_debug *debug = file->private_data; 1214 1215 kfree(debug->buffer); 1216 kfree(debug); 1217 1218 return 0; 1219 } 1220 1221 static int 1222 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1223 { 1224 struct lpfc_debug *debug = file->private_data; 1225 1226 debug->buffer = NULL; 1227 kfree(debug); 1228 1229 return 0; 1230 } 1231 1232 /* 1233 * --------------------------------- 1234 * iDiag debugfs file access methods 1235 * --------------------------------- 1236 * 1237 * All access methods are through the proper SLI4 PCI function's debugfs 1238 * iDiag directory: 1239 * 1240 * /sys/kernel/debug/lpfc/fn<#>/iDiag 1241 */ 1242 1243 /** 1244 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 1245 * @buf: The pointer to the user space buffer. 1246 * @nbytes: The number of bytes in the user space buffer. 1247 * @idiag_cmd: pointer to the idiag command struct. 1248 * 1249 * This routine reads data from debugfs user space buffer and parses the 1250 * buffer for getting the idiag command and arguments. The while space in 1251 * between the set of data is used as the parsing separator. 1252 * 1253 * This routine returns 0 when successful, it returns proper error code 1254 * back to the user space in error conditions. 1255 */ 1256 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 1257 struct lpfc_idiag_cmd *idiag_cmd) 1258 { 1259 char mybuf[64]; 1260 char *pbuf, *step_str; 1261 int i; 1262 size_t bsize; 1263 1264 /* Protect copy from user */ 1265 if (!access_ok(VERIFY_READ, buf, nbytes)) 1266 return -EFAULT; 1267 1268 memset(mybuf, 0, sizeof(mybuf)); 1269 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 1270 bsize = min(nbytes, (sizeof(mybuf)-1)); 1271 1272 if (copy_from_user(mybuf, buf, bsize)) 1273 return -EFAULT; 1274 pbuf = &mybuf[0]; 1275 step_str = strsep(&pbuf, "\t "); 1276 1277 /* The opcode must present */ 1278 if (!step_str) 1279 return -EINVAL; 1280 1281 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 1282 if (idiag_cmd->opcode == 0) 1283 return -EINVAL; 1284 1285 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 1286 step_str = strsep(&pbuf, "\t "); 1287 if (!step_str) 1288 return i; 1289 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 1290 } 1291 return i; 1292 } 1293 1294 /** 1295 * lpfc_idiag_open - idiag open debugfs 1296 * @inode: The inode pointer that contains a pointer to phba. 1297 * @file: The file pointer to attach the file operation. 1298 * 1299 * Description: 1300 * This routine is the entry point for the debugfs open file operation. It 1301 * gets the reference to phba from the i_private field in @inode, it then 1302 * allocates buffer for the file operation, performs the necessary PCI config 1303 * space read into the allocated buffer according to the idiag user command 1304 * setup, and then returns a pointer to buffer in the private_data field in 1305 * @file. 1306 * 1307 * Returns: 1308 * This function returns zero if successful. On error it will return an 1309 * negative error value. 1310 **/ 1311 static int 1312 lpfc_idiag_open(struct inode *inode, struct file *file) 1313 { 1314 struct lpfc_debug *debug; 1315 1316 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1317 if (!debug) 1318 return -ENOMEM; 1319 1320 debug->i_private = inode->i_private; 1321 debug->buffer = NULL; 1322 file->private_data = debug; 1323 1324 return 0; 1325 } 1326 1327 /** 1328 * lpfc_idiag_release - Release idiag access file operation 1329 * @inode: The inode pointer that contains a vport pointer. (unused) 1330 * @file: The file pointer that contains the buffer to release. 1331 * 1332 * Description: 1333 * This routine is the generic release routine for the idiag access file 1334 * operation, it frees the buffer that was allocated when the debugfs file 1335 * was opened. 1336 * 1337 * Returns: 1338 * This function returns zero. 1339 **/ 1340 static int 1341 lpfc_idiag_release(struct inode *inode, struct file *file) 1342 { 1343 struct lpfc_debug *debug = file->private_data; 1344 1345 /* Free the buffers to the file operation */ 1346 kfree(debug->buffer); 1347 kfree(debug); 1348 1349 return 0; 1350 } 1351 1352 /** 1353 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 1354 * @inode: The inode pointer that contains a vport pointer. (unused) 1355 * @file: The file pointer that contains the buffer to release. 1356 * 1357 * Description: 1358 * This routine frees the buffer that was allocated when the debugfs file 1359 * was opened. It also reset the fields in the idiag command struct in the 1360 * case of command for write operation. 1361 * 1362 * Returns: 1363 * This function returns zero. 1364 **/ 1365 static int 1366 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 1367 { 1368 struct lpfc_debug *debug = file->private_data; 1369 1370 if (debug->op == LPFC_IDIAG_OP_WR) { 1371 switch (idiag.cmd.opcode) { 1372 case LPFC_IDIAG_CMD_PCICFG_WR: 1373 case LPFC_IDIAG_CMD_PCICFG_ST: 1374 case LPFC_IDIAG_CMD_PCICFG_CL: 1375 case LPFC_IDIAG_CMD_QUEACC_WR: 1376 case LPFC_IDIAG_CMD_QUEACC_ST: 1377 case LPFC_IDIAG_CMD_QUEACC_CL: 1378 memset(&idiag, 0, sizeof(idiag)); 1379 break; 1380 default: 1381 break; 1382 } 1383 } 1384 1385 /* Free the buffers to the file operation */ 1386 kfree(debug->buffer); 1387 kfree(debug); 1388 1389 return 0; 1390 } 1391 1392 /** 1393 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 1394 * @file: The file pointer to read from. 1395 * @buf: The buffer to copy the data to. 1396 * @nbytes: The number of bytes to read. 1397 * @ppos: The position in the file to start reading from. 1398 * 1399 * Description: 1400 * This routine reads data from the @phba pci config space according to the 1401 * idiag command, and copies to user @buf. Depending on the PCI config space 1402 * read command setup, it does either a single register read of a byte 1403 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 1404 * registers from the 4K extended PCI config space. 1405 * 1406 * Returns: 1407 * This function returns the amount of data that was read (this could be less 1408 * than @nbytes if the end of the file was reached) or a negative error value. 1409 **/ 1410 static ssize_t 1411 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 1412 loff_t *ppos) 1413 { 1414 struct lpfc_debug *debug = file->private_data; 1415 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1416 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 1417 int where, count; 1418 char *pbuffer; 1419 struct pci_dev *pdev; 1420 uint32_t u32val; 1421 uint16_t u16val; 1422 uint8_t u8val; 1423 1424 pdev = phba->pcidev; 1425 if (!pdev) 1426 return 0; 1427 1428 /* This is a user read operation */ 1429 debug->op = LPFC_IDIAG_OP_RD; 1430 1431 if (!debug->buffer) 1432 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 1433 if (!debug->buffer) 1434 return 0; 1435 pbuffer = debug->buffer; 1436 1437 if (*ppos) 1438 return 0; 1439 1440 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 1441 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1442 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1443 } else 1444 return 0; 1445 1446 /* Read single PCI config space register */ 1447 switch (count) { 1448 case SIZE_U8: /* byte (8 bits) */ 1449 pci_read_config_byte(pdev, where, &u8val); 1450 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1451 "%03x: %02x\n", where, u8val); 1452 break; 1453 case SIZE_U16: /* word (16 bits) */ 1454 pci_read_config_word(pdev, where, &u16val); 1455 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1456 "%03x: %04x\n", where, u16val); 1457 break; 1458 case SIZE_U32: /* double word (32 bits) */ 1459 pci_read_config_dword(pdev, where, &u32val); 1460 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1461 "%03x: %08x\n", where, u32val); 1462 break; 1463 case LPFC_PCI_CFG_BROWSE: /* browse all */ 1464 goto pcicfg_browse; 1465 break; 1466 default: 1467 /* illegal count */ 1468 len = 0; 1469 break; 1470 } 1471 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1472 1473 pcicfg_browse: 1474 1475 /* Browse all PCI config space registers */ 1476 offset_label = idiag.offset.last_rd; 1477 offset = offset_label; 1478 1479 /* Read PCI config space */ 1480 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1481 "%03x: ", offset_label); 1482 while (index > 0) { 1483 pci_read_config_dword(pdev, offset, &u32val); 1484 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1485 "%08x ", u32val); 1486 offset += sizeof(uint32_t); 1487 if (offset >= LPFC_PCI_CFG_SIZE) { 1488 len += snprintf(pbuffer+len, 1489 LPFC_PCI_CFG_SIZE-len, "\n"); 1490 break; 1491 } 1492 index -= sizeof(uint32_t); 1493 if (!index) 1494 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1495 "\n"); 1496 else if (!(index % (8 * sizeof(uint32_t)))) { 1497 offset_label += (8 * sizeof(uint32_t)); 1498 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1499 "\n%03x: ", offset_label); 1500 } 1501 } 1502 1503 /* Set up the offset for next portion of pci cfg read */ 1504 if (index == 0) { 1505 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 1506 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 1507 idiag.offset.last_rd = 0; 1508 } else 1509 idiag.offset.last_rd = 0; 1510 1511 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1512 } 1513 1514 /** 1515 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 1516 * @file: The file pointer to read from. 1517 * @buf: The buffer to copy the user data from. 1518 * @nbytes: The number of bytes to get. 1519 * @ppos: The position in the file to start reading from. 1520 * 1521 * This routine get the debugfs idiag command struct from user space and 1522 * then perform the syntax check for PCI config space read or write command 1523 * accordingly. In the case of PCI config space read command, it sets up 1524 * the command in the idiag command struct for the debugfs read operation. 1525 * In the case of PCI config space write operation, it executes the write 1526 * operation into the PCI config space accordingly. 1527 * 1528 * It returns the @nbytges passing in from debugfs user space when successful. 1529 * In case of error conditions, it returns proper error code back to the user 1530 * space. 1531 */ 1532 static ssize_t 1533 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 1534 size_t nbytes, loff_t *ppos) 1535 { 1536 struct lpfc_debug *debug = file->private_data; 1537 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1538 uint32_t where, value, count; 1539 uint32_t u32val; 1540 uint16_t u16val; 1541 uint8_t u8val; 1542 struct pci_dev *pdev; 1543 int rc; 1544 1545 pdev = phba->pcidev; 1546 if (!pdev) 1547 return -EFAULT; 1548 1549 /* This is a user write operation */ 1550 debug->op = LPFC_IDIAG_OP_WR; 1551 1552 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 1553 if (rc < 0) 1554 return rc; 1555 1556 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 1557 /* Sanity check on PCI config read command line arguments */ 1558 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 1559 goto error_out; 1560 /* Read command from PCI config space, set up command fields */ 1561 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1562 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1563 if (count == LPFC_PCI_CFG_BROWSE) { 1564 if (where % sizeof(uint32_t)) 1565 goto error_out; 1566 /* Starting offset to browse */ 1567 idiag.offset.last_rd = where; 1568 } else if ((count != sizeof(uint8_t)) && 1569 (count != sizeof(uint16_t)) && 1570 (count != sizeof(uint32_t))) 1571 goto error_out; 1572 if (count == sizeof(uint8_t)) { 1573 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 1574 goto error_out; 1575 if (where % sizeof(uint8_t)) 1576 goto error_out; 1577 } 1578 if (count == sizeof(uint16_t)) { 1579 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 1580 goto error_out; 1581 if (where % sizeof(uint16_t)) 1582 goto error_out; 1583 } 1584 if (count == sizeof(uint32_t)) { 1585 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 1586 goto error_out; 1587 if (where % sizeof(uint32_t)) 1588 goto error_out; 1589 } 1590 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 1591 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 1592 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1593 /* Sanity check on PCI config write command line arguments */ 1594 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 1595 goto error_out; 1596 /* Write command to PCI config space, read-modify-write */ 1597 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1598 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1599 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 1600 /* Sanity checks */ 1601 if ((count != sizeof(uint8_t)) && 1602 (count != sizeof(uint16_t)) && 1603 (count != sizeof(uint32_t))) 1604 goto error_out; 1605 if (count == sizeof(uint8_t)) { 1606 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 1607 goto error_out; 1608 if (where % sizeof(uint8_t)) 1609 goto error_out; 1610 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1611 pci_write_config_byte(pdev, where, 1612 (uint8_t)value); 1613 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1614 rc = pci_read_config_byte(pdev, where, &u8val); 1615 if (!rc) { 1616 u8val |= (uint8_t)value; 1617 pci_write_config_byte(pdev, where, 1618 u8val); 1619 } 1620 } 1621 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1622 rc = pci_read_config_byte(pdev, where, &u8val); 1623 if (!rc) { 1624 u8val &= (uint8_t)(~value); 1625 pci_write_config_byte(pdev, where, 1626 u8val); 1627 } 1628 } 1629 } 1630 if (count == sizeof(uint16_t)) { 1631 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 1632 goto error_out; 1633 if (where % sizeof(uint16_t)) 1634 goto error_out; 1635 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1636 pci_write_config_word(pdev, where, 1637 (uint16_t)value); 1638 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1639 rc = pci_read_config_word(pdev, where, &u16val); 1640 if (!rc) { 1641 u16val |= (uint16_t)value; 1642 pci_write_config_word(pdev, where, 1643 u16val); 1644 } 1645 } 1646 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1647 rc = pci_read_config_word(pdev, where, &u16val); 1648 if (!rc) { 1649 u16val &= (uint16_t)(~value); 1650 pci_write_config_word(pdev, where, 1651 u16val); 1652 } 1653 } 1654 } 1655 if (count == sizeof(uint32_t)) { 1656 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 1657 goto error_out; 1658 if (where % sizeof(uint32_t)) 1659 goto error_out; 1660 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1661 pci_write_config_dword(pdev, where, value); 1662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1663 rc = pci_read_config_dword(pdev, where, 1664 &u32val); 1665 if (!rc) { 1666 u32val |= value; 1667 pci_write_config_dword(pdev, where, 1668 u32val); 1669 } 1670 } 1671 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1672 rc = pci_read_config_dword(pdev, where, 1673 &u32val); 1674 if (!rc) { 1675 u32val &= ~value; 1676 pci_write_config_dword(pdev, where, 1677 u32val); 1678 } 1679 } 1680 } 1681 } else 1682 /* All other opecodes are illegal for now */ 1683 goto error_out; 1684 1685 return nbytes; 1686 error_out: 1687 memset(&idiag, 0, sizeof(idiag)); 1688 return -EINVAL; 1689 } 1690 1691 /** 1692 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 1693 * @file: The file pointer to read from. 1694 * @buf: The buffer to copy the data to. 1695 * @nbytes: The number of bytes to read. 1696 * @ppos: The position in the file to start reading from. 1697 * 1698 * Description: 1699 * This routine reads data from the @phba pci bar memory mapped space 1700 * according to the idiag command, and copies to user @buf. 1701 * 1702 * Returns: 1703 * This function returns the amount of data that was read (this could be less 1704 * than @nbytes if the end of the file was reached) or a negative error value. 1705 **/ 1706 static ssize_t 1707 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 1708 loff_t *ppos) 1709 { 1710 struct lpfc_debug *debug = file->private_data; 1711 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1712 int offset_label, offset, offset_run, len = 0, index; 1713 int bar_num, acc_range, bar_size; 1714 char *pbuffer; 1715 void __iomem *mem_mapped_bar; 1716 uint32_t if_type; 1717 struct pci_dev *pdev; 1718 uint32_t u32val; 1719 1720 pdev = phba->pcidev; 1721 if (!pdev) 1722 return 0; 1723 1724 /* This is a user read operation */ 1725 debug->op = LPFC_IDIAG_OP_RD; 1726 1727 if (!debug->buffer) 1728 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 1729 if (!debug->buffer) 1730 return 0; 1731 pbuffer = debug->buffer; 1732 1733 if (*ppos) 1734 return 0; 1735 1736 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 1737 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 1738 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 1739 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 1740 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 1741 } else 1742 return 0; 1743 1744 if (acc_range == 0) 1745 return 0; 1746 1747 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1748 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1749 if (bar_num == IDIAG_BARACC_BAR_0) 1750 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1751 else if (bar_num == IDIAG_BARACC_BAR_1) 1752 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 1753 else if (bar_num == IDIAG_BARACC_BAR_2) 1754 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 1755 else 1756 return 0; 1757 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1758 if (bar_num == IDIAG_BARACC_BAR_0) 1759 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1760 else 1761 return 0; 1762 } else 1763 return 0; 1764 1765 /* Read single PCI bar space register */ 1766 if (acc_range == SINGLE_WORD) { 1767 offset_run = offset; 1768 u32val = readl(mem_mapped_bar + offset_run); 1769 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1770 "%05x: %08x\n", offset_run, u32val); 1771 } else 1772 goto baracc_browse; 1773 1774 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1775 1776 baracc_browse: 1777 1778 /* Browse all PCI bar space registers */ 1779 offset_label = idiag.offset.last_rd; 1780 offset_run = offset_label; 1781 1782 /* Read PCI bar memory mapped space */ 1783 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1784 "%05x: ", offset_label); 1785 index = LPFC_PCI_BAR_RD_SIZE; 1786 while (index > 0) { 1787 u32val = readl(mem_mapped_bar + offset_run); 1788 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1789 "%08x ", u32val); 1790 offset_run += sizeof(uint32_t); 1791 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1792 if (offset_run >= bar_size) { 1793 len += snprintf(pbuffer+len, 1794 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1795 break; 1796 } 1797 } else { 1798 if (offset_run >= offset + 1799 (acc_range * sizeof(uint32_t))) { 1800 len += snprintf(pbuffer+len, 1801 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1802 break; 1803 } 1804 } 1805 index -= sizeof(uint32_t); 1806 if (!index) 1807 len += snprintf(pbuffer+len, 1808 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1809 else if (!(index % (8 * sizeof(uint32_t)))) { 1810 offset_label += (8 * sizeof(uint32_t)); 1811 len += snprintf(pbuffer+len, 1812 LPFC_PCI_BAR_RD_BUF_SIZE-len, 1813 "\n%05x: ", offset_label); 1814 } 1815 } 1816 1817 /* Set up the offset for next portion of pci bar read */ 1818 if (index == 0) { 1819 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 1820 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1821 if (idiag.offset.last_rd >= bar_size) 1822 idiag.offset.last_rd = 0; 1823 } else { 1824 if (offset_run >= offset + 1825 (acc_range * sizeof(uint32_t))) 1826 idiag.offset.last_rd = offset; 1827 } 1828 } else { 1829 if (acc_range == LPFC_PCI_BAR_BROWSE) 1830 idiag.offset.last_rd = 0; 1831 else 1832 idiag.offset.last_rd = offset; 1833 } 1834 1835 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1836 } 1837 1838 /** 1839 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 1840 * @file: The file pointer to read from. 1841 * @buf: The buffer to copy the user data from. 1842 * @nbytes: The number of bytes to get. 1843 * @ppos: The position in the file to start reading from. 1844 * 1845 * This routine get the debugfs idiag command struct from user space and 1846 * then perform the syntax check for PCI bar memory mapped space read or 1847 * write command accordingly. In the case of PCI bar memory mapped space 1848 * read command, it sets up the command in the idiag command struct for 1849 * the debugfs read operation. In the case of PCI bar memorpy mapped space 1850 * write operation, it executes the write operation into the PCI bar memory 1851 * mapped space accordingly. 1852 * 1853 * It returns the @nbytges passing in from debugfs user space when successful. 1854 * In case of error conditions, it returns proper error code back to the user 1855 * space. 1856 */ 1857 static ssize_t 1858 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 1859 size_t nbytes, loff_t *ppos) 1860 { 1861 struct lpfc_debug *debug = file->private_data; 1862 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1863 uint32_t bar_num, bar_size, offset, value, acc_range; 1864 struct pci_dev *pdev; 1865 void __iomem *mem_mapped_bar; 1866 uint32_t if_type; 1867 uint32_t u32val; 1868 int rc; 1869 1870 pdev = phba->pcidev; 1871 if (!pdev) 1872 return -EFAULT; 1873 1874 /* This is a user write operation */ 1875 debug->op = LPFC_IDIAG_OP_WR; 1876 1877 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 1878 if (rc < 0) 1879 return rc; 1880 1881 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1882 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 1883 1884 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1885 if ((bar_num != IDIAG_BARACC_BAR_0) && 1886 (bar_num != IDIAG_BARACC_BAR_1) && 1887 (bar_num != IDIAG_BARACC_BAR_2)) 1888 goto error_out; 1889 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1890 if (bar_num != IDIAG_BARACC_BAR_0) 1891 goto error_out; 1892 } else 1893 goto error_out; 1894 1895 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1896 if (bar_num == IDIAG_BARACC_BAR_0) { 1897 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1898 LPFC_PCI_IF0_BAR0_SIZE; 1899 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1900 } else if (bar_num == IDIAG_BARACC_BAR_1) { 1901 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1902 LPFC_PCI_IF0_BAR1_SIZE; 1903 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 1904 } else if (bar_num == IDIAG_BARACC_BAR_2) { 1905 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1906 LPFC_PCI_IF0_BAR2_SIZE; 1907 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 1908 } else 1909 goto error_out; 1910 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1911 if (bar_num == IDIAG_BARACC_BAR_0) { 1912 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1913 LPFC_PCI_IF2_BAR0_SIZE; 1914 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1915 } else 1916 goto error_out; 1917 } else 1918 goto error_out; 1919 1920 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 1921 if (offset % sizeof(uint32_t)) 1922 goto error_out; 1923 1924 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 1925 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 1926 /* Sanity check on PCI config read command line arguments */ 1927 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 1928 goto error_out; 1929 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 1930 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1931 if (offset > bar_size - sizeof(uint32_t)) 1932 goto error_out; 1933 /* Starting offset to browse */ 1934 idiag.offset.last_rd = offset; 1935 } else if (acc_range > SINGLE_WORD) { 1936 if (offset + acc_range * sizeof(uint32_t) > bar_size) 1937 goto error_out; 1938 /* Starting offset to browse */ 1939 idiag.offset.last_rd = offset; 1940 } else if (acc_range != SINGLE_WORD) 1941 goto error_out; 1942 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 1943 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 1944 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 1945 /* Sanity check on PCI bar write command line arguments */ 1946 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 1947 goto error_out; 1948 /* Write command to PCI bar space, read-modify-write */ 1949 acc_range = SINGLE_WORD; 1950 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 1951 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 1952 writel(value, mem_mapped_bar + offset); 1953 readl(mem_mapped_bar + offset); 1954 } 1955 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 1956 u32val = readl(mem_mapped_bar + offset); 1957 u32val |= value; 1958 writel(u32val, mem_mapped_bar + offset); 1959 readl(mem_mapped_bar + offset); 1960 } 1961 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 1962 u32val = readl(mem_mapped_bar + offset); 1963 u32val &= ~value; 1964 writel(u32val, mem_mapped_bar + offset); 1965 readl(mem_mapped_bar + offset); 1966 } 1967 } else 1968 /* All other opecodes are illegal for now */ 1969 goto error_out; 1970 1971 return nbytes; 1972 error_out: 1973 memset(&idiag, 0, sizeof(idiag)); 1974 return -EINVAL; 1975 } 1976 1977 /** 1978 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 1979 * @file: The file pointer to read from. 1980 * @buf: The buffer to copy the data to. 1981 * @nbytes: The number of bytes to read. 1982 * @ppos: The position in the file to start reading from. 1983 * 1984 * Description: 1985 * This routine reads data from the @phba SLI4 PCI function queue information, 1986 * and copies to user @buf. 1987 * 1988 * Returns: 1989 * This function returns the amount of data that was read (this could be less 1990 * than @nbytes if the end of the file was reached) or a negative error value. 1991 **/ 1992 static ssize_t 1993 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 1994 loff_t *ppos) 1995 { 1996 struct lpfc_debug *debug = file->private_data; 1997 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1998 int len = 0; 1999 char *pbuffer; 2000 int x, cnt; 2001 int max_cnt; 2002 struct lpfc_queue *qp = NULL; 2003 2004 2005 if (!debug->buffer) 2006 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 2007 if (!debug->buffer) 2008 return 0; 2009 pbuffer = debug->buffer; 2010 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128; 2011 2012 if (*ppos) 2013 return 0; 2014 2015 spin_lock_irq(&phba->hbalock); 2016 2017 /* Fast-path event queue */ 2018 if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) { 2019 cnt = phba->cfg_fcp_io_channel; 2020 2021 for (x = 0; x < cnt; x++) { 2022 2023 /* Fast-path EQ */ 2024 qp = phba->sli4_hba.hba_eq[x]; 2025 if (!qp) 2026 goto proc_cq; 2027 2028 len += snprintf(pbuffer+len, 2029 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2030 "\nHBA EQ info: " 2031 "EQ-STAT[max:x%x noE:x%x " 2032 "bs:x%x proc:x%llx]\n", 2033 qp->q_cnt_1, qp->q_cnt_2, 2034 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 2035 2036 len += snprintf(pbuffer+len, 2037 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2038 "EQID[%02d], " 2039 "QE-CNT[%04d], QE-SIZE[%04d], " 2040 "HOST-IDX[%04d], PORT-IDX[%04d]", 2041 qp->queue_id, 2042 qp->entry_count, 2043 qp->entry_size, 2044 qp->host_index, 2045 qp->hba_index); 2046 2047 2048 /* Reset max counter */ 2049 qp->EQ_max_eqe = 0; 2050 2051 len += snprintf(pbuffer+len, 2052 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2053 if (len >= max_cnt) 2054 goto too_big; 2055 proc_cq: 2056 /* Fast-path FCP CQ */ 2057 qp = phba->sli4_hba.fcp_cq[x]; 2058 len += snprintf(pbuffer+len, 2059 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2060 "\tFCP CQ info: "); 2061 len += snprintf(pbuffer+len, 2062 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2063 "AssocEQID[%02d]: " 2064 "CQ STAT[max:x%x relw:x%x " 2065 "xabt:x%x wq:x%llx]\n", 2066 qp->assoc_qid, 2067 qp->q_cnt_1, qp->q_cnt_2, 2068 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 2069 len += snprintf(pbuffer+len, 2070 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2071 "\tCQID[%02d], " 2072 "QE-CNT[%04d], QE-SIZE[%04d], " 2073 "HOST-IDX[%04d], PORT-IDX[%04d]", 2074 qp->queue_id, qp->entry_count, 2075 qp->entry_size, qp->host_index, 2076 qp->hba_index); 2077 2078 2079 /* Reset max counter */ 2080 qp->CQ_max_cqe = 0; 2081 2082 len += snprintf(pbuffer+len, 2083 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2084 if (len >= max_cnt) 2085 goto too_big; 2086 2087 /* Fast-path FCP WQ */ 2088 qp = phba->sli4_hba.fcp_wq[x]; 2089 2090 len += snprintf(pbuffer+len, 2091 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2092 "\t\tFCP WQ info: "); 2093 len += snprintf(pbuffer+len, 2094 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2095 "AssocCQID[%02d]: " 2096 "WQ-STAT[oflow:x%x posted:x%llx]\n", 2097 qp->assoc_qid, 2098 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4); 2099 len += snprintf(pbuffer+len, 2100 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2101 "\t\tWQID[%02d], " 2102 "QE-CNT[%04d], QE-SIZE[%04d], " 2103 "HOST-IDX[%04d], PORT-IDX[%04d]", 2104 qp->queue_id, 2105 qp->entry_count, 2106 qp->entry_size, 2107 qp->host_index, 2108 qp->hba_index); 2109 2110 len += snprintf(pbuffer+len, 2111 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2112 if (len >= max_cnt) 2113 goto too_big; 2114 2115 if (x) 2116 continue; 2117 2118 /* Only EQ 0 has slow path CQs configured */ 2119 2120 /* Slow-path mailbox CQ */ 2121 qp = phba->sli4_hba.mbx_cq; 2122 if (qp) { 2123 len += snprintf(pbuffer+len, 2124 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2125 "\tMBX CQ info: "); 2126 len += snprintf(pbuffer+len, 2127 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2128 "AssocEQID[%02d]: " 2129 "CQ-STAT[mbox:x%x relw:x%x " 2130 "xabt:x%x wq:x%llx]\n", 2131 qp->assoc_qid, 2132 qp->q_cnt_1, qp->q_cnt_2, 2133 qp->q_cnt_3, 2134 (unsigned long long)qp->q_cnt_4); 2135 len += snprintf(pbuffer+len, 2136 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2137 "\tCQID[%02d], " 2138 "QE-CNT[%04d], QE-SIZE[%04d], " 2139 "HOST-IDX[%04d], PORT-IDX[%04d]", 2140 qp->queue_id, qp->entry_count, 2141 qp->entry_size, qp->host_index, 2142 qp->hba_index); 2143 2144 len += snprintf(pbuffer+len, 2145 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2146 if (len >= max_cnt) 2147 goto too_big; 2148 } 2149 2150 /* Slow-path MBOX MQ */ 2151 qp = phba->sli4_hba.mbx_wq; 2152 if (qp) { 2153 len += snprintf(pbuffer+len, 2154 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2155 "\t\tMBX MQ info: "); 2156 len += snprintf(pbuffer+len, 2157 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2158 "AssocCQID[%02d]:\n", 2159 phba->sli4_hba.mbx_wq->assoc_qid); 2160 len += snprintf(pbuffer+len, 2161 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2162 "\t\tWQID[%02d], " 2163 "QE-CNT[%04d], QE-SIZE[%04d], " 2164 "HOST-IDX[%04d], PORT-IDX[%04d]", 2165 qp->queue_id, qp->entry_count, 2166 qp->entry_size, qp->host_index, 2167 qp->hba_index); 2168 2169 len += snprintf(pbuffer+len, 2170 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2171 if (len >= max_cnt) 2172 goto too_big; 2173 } 2174 2175 /* Slow-path ELS response CQ */ 2176 qp = phba->sli4_hba.els_cq; 2177 if (qp) { 2178 len += snprintf(pbuffer+len, 2179 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2180 "\tELS CQ info: "); 2181 len += snprintf(pbuffer+len, 2182 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2183 "AssocEQID[%02d]: " 2184 "CQ-STAT[max:x%x relw:x%x " 2185 "xabt:x%x wq:x%llx]\n", 2186 qp->assoc_qid, 2187 qp->q_cnt_1, qp->q_cnt_2, 2188 qp->q_cnt_3, 2189 (unsigned long long)qp->q_cnt_4); 2190 len += snprintf(pbuffer+len, 2191 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2192 "\tCQID [%02d], " 2193 "QE-CNT[%04d], QE-SIZE[%04d], " 2194 "HOST-IDX[%04d], PORT-IDX[%04d]", 2195 qp->queue_id, qp->entry_count, 2196 qp->entry_size, qp->host_index, 2197 qp->hba_index); 2198 2199 /* Reset max counter */ 2200 qp->CQ_max_cqe = 0; 2201 2202 len += snprintf(pbuffer+len, 2203 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2204 if (len >= max_cnt) 2205 goto too_big; 2206 } 2207 2208 /* Slow-path ELS WQ */ 2209 qp = phba->sli4_hba.els_wq; 2210 if (qp) { 2211 len += snprintf(pbuffer+len, 2212 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2213 "\t\tELS WQ info: "); 2214 len += snprintf(pbuffer+len, 2215 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2216 "AssocCQID[%02d]: " 2217 " WQ-STAT[oflow:x%x " 2218 "posted:x%llx]\n", 2219 qp->assoc_qid, 2220 qp->q_cnt_1, 2221 (unsigned long long)qp->q_cnt_4); 2222 len += snprintf(pbuffer+len, 2223 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2224 "\t\tWQID[%02d], " 2225 "QE-CNT[%04d], QE-SIZE[%04d], " 2226 "HOST-IDX[%04d], PORT-IDX[%04d]", 2227 qp->queue_id, qp->entry_count, 2228 qp->entry_size, qp->host_index, 2229 qp->hba_index); 2230 2231 len += snprintf(pbuffer+len, 2232 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2233 if (len >= max_cnt) 2234 goto too_big; 2235 } 2236 2237 if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) { 2238 /* Slow-path RQ header */ 2239 qp = phba->sli4_hba.hdr_rq; 2240 2241 len += snprintf(pbuffer+len, 2242 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2243 "\t\tRQ info: "); 2244 len += snprintf(pbuffer+len, 2245 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2246 "AssocCQID[%02d]: " 2247 "RQ-STAT[nopost:x%x nobuf:x%x " 2248 "trunc:x%x rcv:x%llx]\n", 2249 qp->assoc_qid, 2250 qp->q_cnt_1, qp->q_cnt_2, 2251 qp->q_cnt_3, 2252 (unsigned long long)qp->q_cnt_4); 2253 len += snprintf(pbuffer+len, 2254 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2255 "\t\tHQID[%02d], " 2256 "QE-CNT[%04d], QE-SIZE[%04d], " 2257 "HOST-IDX[%04d], PORT-IDX[%04d]\n", 2258 qp->queue_id, 2259 qp->entry_count, 2260 qp->entry_size, 2261 qp->host_index, 2262 qp->hba_index); 2263 2264 /* Slow-path RQ data */ 2265 qp = phba->sli4_hba.dat_rq; 2266 len += snprintf(pbuffer+len, 2267 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2268 "\t\tDQID[%02d], " 2269 "QE-CNT[%04d], QE-SIZE[%04d], " 2270 "HOST-IDX[%04d], PORT-IDX[%04d]\n", 2271 qp->queue_id, 2272 qp->entry_count, 2273 qp->entry_size, 2274 qp->host_index, 2275 qp->hba_index); 2276 2277 len += snprintf(pbuffer+len, 2278 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2279 } 2280 } 2281 } 2282 2283 if (phba->cfg_fof) { 2284 /* FOF EQ */ 2285 qp = phba->sli4_hba.fof_eq; 2286 if (!qp) 2287 goto out; 2288 2289 len += snprintf(pbuffer+len, 2290 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2291 "\nFOF EQ info: " 2292 "EQ-STAT[max:x%x noE:x%x " 2293 "bs:x%x proc:x%llx]\n", 2294 qp->q_cnt_1, qp->q_cnt_2, 2295 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 2296 2297 len += snprintf(pbuffer+len, 2298 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2299 "EQID[%02d], " 2300 "QE-CNT[%04d], QE-SIZE[%04d], " 2301 "HOST-IDX[%04d], PORT-IDX[%04d]", 2302 qp->queue_id, 2303 qp->entry_count, 2304 qp->entry_size, 2305 qp->host_index, 2306 qp->hba_index); 2307 2308 /* Reset max counter */ 2309 qp->EQ_max_eqe = 0; 2310 2311 len += snprintf(pbuffer+len, 2312 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2313 if (len >= max_cnt) 2314 goto too_big; 2315 } 2316 2317 if (phba->cfg_fof) { 2318 2319 /* OAS CQ */ 2320 qp = phba->sli4_hba.oas_cq; 2321 if (qp) { 2322 len += snprintf(pbuffer+len, 2323 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2324 "\tOAS CQ info: "); 2325 len += snprintf(pbuffer+len, 2326 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2327 "AssocEQID[%02d]: " 2328 "CQ STAT[max:x%x relw:x%x " 2329 "xabt:x%x wq:x%llx]\n", 2330 qp->assoc_qid, 2331 qp->q_cnt_1, qp->q_cnt_2, 2332 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 2333 len += snprintf(pbuffer+len, 2334 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2335 "\tCQID[%02d], " 2336 "QE-CNT[%04d], QE-SIZE[%04d], " 2337 "HOST-IDX[%04d], PORT-IDX[%04d]", 2338 qp->queue_id, qp->entry_count, 2339 qp->entry_size, qp->host_index, 2340 qp->hba_index); 2341 2342 /* Reset max counter */ 2343 qp->CQ_max_cqe = 0; 2344 2345 len += snprintf(pbuffer+len, 2346 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2347 if (len >= max_cnt) 2348 goto too_big; 2349 } 2350 2351 /* OAS WQ */ 2352 qp = phba->sli4_hba.oas_wq; 2353 if (qp) { 2354 len += snprintf(pbuffer+len, 2355 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2356 "\t\tOAS WQ info: "); 2357 len += snprintf(pbuffer+len, 2358 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2359 "AssocCQID[%02d]: " 2360 "WQ-STAT[oflow:x%x posted:x%llx]\n", 2361 qp->assoc_qid, 2362 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4); 2363 len += snprintf(pbuffer+len, 2364 LPFC_QUE_INFO_GET_BUF_SIZE-len, 2365 "\t\tWQID[%02d], " 2366 "QE-CNT[%04d], QE-SIZE[%04d], " 2367 "HOST-IDX[%04d], PORT-IDX[%04d]", 2368 qp->queue_id, 2369 qp->entry_count, 2370 qp->entry_size, 2371 qp->host_index, 2372 qp->hba_index); 2373 2374 len += snprintf(pbuffer+len, 2375 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2376 if (len >= max_cnt) 2377 goto too_big; 2378 } 2379 } 2380 out: 2381 spin_unlock_irq(&phba->hbalock); 2382 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2383 2384 too_big: 2385 len += snprintf(pbuffer+len, 2386 LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n"); 2387 spin_unlock_irq(&phba->hbalock); 2388 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2389 } 2390 2391 /** 2392 * lpfc_idiag_que_param_check - queue access command parameter sanity check 2393 * @q: The pointer to queue structure. 2394 * @index: The index into a queue entry. 2395 * @count: The number of queue entries to access. 2396 * 2397 * Description: 2398 * The routine performs sanity check on device queue access method commands. 2399 * 2400 * Returns: 2401 * This function returns -EINVAL when fails the sanity check, otherwise, it 2402 * returns 0. 2403 **/ 2404 static int 2405 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 2406 { 2407 /* Only support single entry read or browsing */ 2408 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 2409 return -EINVAL; 2410 if (index > q->entry_count - 1) 2411 return -EINVAL; 2412 return 0; 2413 } 2414 2415 /** 2416 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 2417 * @pbuffer: The pointer to buffer to copy the read data into. 2418 * @pque: The pointer to the queue to be read. 2419 * @index: The index into the queue entry. 2420 * 2421 * Description: 2422 * This routine reads out a single entry from the given queue's index location 2423 * and copies it into the buffer provided. 2424 * 2425 * Returns: 2426 * This function returns 0 when it fails, otherwise, it returns the length of 2427 * the data read into the buffer provided. 2428 **/ 2429 static int 2430 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 2431 uint32_t index) 2432 { 2433 int offset, esize; 2434 uint32_t *pentry; 2435 2436 if (!pbuffer || !pque) 2437 return 0; 2438 2439 esize = pque->entry_size; 2440 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 2441 "QE-INDEX[%04d]:\n", index); 2442 2443 offset = 0; 2444 pentry = pque->qe[index].address; 2445 while (esize > 0) { 2446 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 2447 "%08x ", *pentry); 2448 pentry++; 2449 offset += sizeof(uint32_t); 2450 esize -= sizeof(uint32_t); 2451 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 2452 len += snprintf(pbuffer+len, 2453 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 2454 } 2455 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 2456 2457 return len; 2458 } 2459 2460 /** 2461 * lpfc_idiag_queacc_read - idiag debugfs read port queue 2462 * @file: The file pointer to read from. 2463 * @buf: The buffer to copy the data to. 2464 * @nbytes: The number of bytes to read. 2465 * @ppos: The position in the file to start reading from. 2466 * 2467 * Description: 2468 * This routine reads data from the @phba device queue memory according to the 2469 * idiag command, and copies to user @buf. Depending on the queue dump read 2470 * command setup, it does either a single queue entry read or browing through 2471 * all entries of the queue. 2472 * 2473 * Returns: 2474 * This function returns the amount of data that was read (this could be less 2475 * than @nbytes if the end of the file was reached) or a negative error value. 2476 **/ 2477 static ssize_t 2478 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 2479 loff_t *ppos) 2480 { 2481 struct lpfc_debug *debug = file->private_data; 2482 uint32_t last_index, index, count; 2483 struct lpfc_queue *pque = NULL; 2484 char *pbuffer; 2485 int len = 0; 2486 2487 /* This is a user read operation */ 2488 debug->op = LPFC_IDIAG_OP_RD; 2489 2490 if (!debug->buffer) 2491 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 2492 if (!debug->buffer) 2493 return 0; 2494 pbuffer = debug->buffer; 2495 2496 if (*ppos) 2497 return 0; 2498 2499 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2500 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 2501 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 2502 pque = (struct lpfc_queue *)idiag.ptr_private; 2503 } else 2504 return 0; 2505 2506 /* Browse the queue starting from index */ 2507 if (count == LPFC_QUE_ACC_BROWSE) 2508 goto que_browse; 2509 2510 /* Read a single entry from the queue */ 2511 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 2512 2513 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2514 2515 que_browse: 2516 2517 /* Browse all entries from the queue */ 2518 last_index = idiag.offset.last_rd; 2519 index = last_index; 2520 2521 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 2522 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 2523 index++; 2524 if (index > pque->entry_count - 1) 2525 break; 2526 } 2527 2528 /* Set up the offset for next portion of pci cfg read */ 2529 if (index > pque->entry_count - 1) 2530 index = 0; 2531 idiag.offset.last_rd = index; 2532 2533 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2534 } 2535 2536 /** 2537 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 2538 * @file: The file pointer to read from. 2539 * @buf: The buffer to copy the user data from. 2540 * @nbytes: The number of bytes to get. 2541 * @ppos: The position in the file to start reading from. 2542 * 2543 * This routine get the debugfs idiag command struct from user space and then 2544 * perform the syntax check for port queue read (dump) or write (set) command 2545 * accordingly. In the case of port queue read command, it sets up the command 2546 * in the idiag command struct for the following debugfs read operation. In 2547 * the case of port queue write operation, it executes the write operation 2548 * into the port queue entry accordingly. 2549 * 2550 * It returns the @nbytges passing in from debugfs user space when successful. 2551 * In case of error conditions, it returns proper error code back to the user 2552 * space. 2553 **/ 2554 static ssize_t 2555 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 2556 size_t nbytes, loff_t *ppos) 2557 { 2558 struct lpfc_debug *debug = file->private_data; 2559 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2560 uint32_t qidx, quetp, queid, index, count, offset, value; 2561 uint32_t *pentry; 2562 struct lpfc_queue *pque; 2563 int rc; 2564 2565 /* This is a user write operation */ 2566 debug->op = LPFC_IDIAG_OP_WR; 2567 2568 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2569 if (rc < 0) 2570 return rc; 2571 2572 /* Get and sanity check on command feilds */ 2573 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 2574 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 2575 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 2576 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 2577 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 2578 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 2579 2580 /* Sanity check on command line arguments */ 2581 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 2582 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 2583 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 2584 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 2585 goto error_out; 2586 if (count != 1) 2587 goto error_out; 2588 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2589 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 2590 goto error_out; 2591 } else 2592 goto error_out; 2593 2594 switch (quetp) { 2595 case LPFC_IDIAG_EQ: 2596 /* HBA event queue */ 2597 if (phba->sli4_hba.hba_eq) { 2598 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 2599 qidx++) { 2600 if (phba->sli4_hba.hba_eq[qidx] && 2601 phba->sli4_hba.hba_eq[qidx]->queue_id == 2602 queid) { 2603 /* Sanity check */ 2604 rc = lpfc_idiag_que_param_check( 2605 phba->sli4_hba.hba_eq[qidx], 2606 index, count); 2607 if (rc) 2608 goto error_out; 2609 idiag.ptr_private = 2610 phba->sli4_hba.hba_eq[qidx]; 2611 goto pass_check; 2612 } 2613 } 2614 } 2615 goto error_out; 2616 break; 2617 case LPFC_IDIAG_CQ: 2618 /* MBX complete queue */ 2619 if (phba->sli4_hba.mbx_cq && 2620 phba->sli4_hba.mbx_cq->queue_id == queid) { 2621 /* Sanity check */ 2622 rc = lpfc_idiag_que_param_check( 2623 phba->sli4_hba.mbx_cq, index, count); 2624 if (rc) 2625 goto error_out; 2626 idiag.ptr_private = phba->sli4_hba.mbx_cq; 2627 goto pass_check; 2628 } 2629 /* ELS complete queue */ 2630 if (phba->sli4_hba.els_cq && 2631 phba->sli4_hba.els_cq->queue_id == queid) { 2632 /* Sanity check */ 2633 rc = lpfc_idiag_que_param_check( 2634 phba->sli4_hba.els_cq, index, count); 2635 if (rc) 2636 goto error_out; 2637 idiag.ptr_private = phba->sli4_hba.els_cq; 2638 goto pass_check; 2639 } 2640 /* FCP complete queue */ 2641 if (phba->sli4_hba.fcp_cq) { 2642 qidx = 0; 2643 do { 2644 if (phba->sli4_hba.fcp_cq[qidx] && 2645 phba->sli4_hba.fcp_cq[qidx]->queue_id == 2646 queid) { 2647 /* Sanity check */ 2648 rc = lpfc_idiag_que_param_check( 2649 phba->sli4_hba.fcp_cq[qidx], 2650 index, count); 2651 if (rc) 2652 goto error_out; 2653 idiag.ptr_private = 2654 phba->sli4_hba.fcp_cq[qidx]; 2655 goto pass_check; 2656 } 2657 } while (++qidx < phba->cfg_fcp_io_channel); 2658 } 2659 goto error_out; 2660 break; 2661 case LPFC_IDIAG_MQ: 2662 /* MBX work queue */ 2663 if (phba->sli4_hba.mbx_wq && 2664 phba->sli4_hba.mbx_wq->queue_id == queid) { 2665 /* Sanity check */ 2666 rc = lpfc_idiag_que_param_check( 2667 phba->sli4_hba.mbx_wq, index, count); 2668 if (rc) 2669 goto error_out; 2670 idiag.ptr_private = phba->sli4_hba.mbx_wq; 2671 goto pass_check; 2672 } 2673 goto error_out; 2674 break; 2675 case LPFC_IDIAG_WQ: 2676 /* ELS work queue */ 2677 if (phba->sli4_hba.els_wq && 2678 phba->sli4_hba.els_wq->queue_id == queid) { 2679 /* Sanity check */ 2680 rc = lpfc_idiag_que_param_check( 2681 phba->sli4_hba.els_wq, index, count); 2682 if (rc) 2683 goto error_out; 2684 idiag.ptr_private = phba->sli4_hba.els_wq; 2685 goto pass_check; 2686 } 2687 /* FCP work queue */ 2688 if (phba->sli4_hba.fcp_wq) { 2689 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 2690 qidx++) { 2691 if (!phba->sli4_hba.fcp_wq[qidx]) 2692 continue; 2693 if (phba->sli4_hba.fcp_wq[qidx]->queue_id == 2694 queid) { 2695 /* Sanity check */ 2696 rc = lpfc_idiag_que_param_check( 2697 phba->sli4_hba.fcp_wq[qidx], 2698 index, count); 2699 if (rc) 2700 goto error_out; 2701 idiag.ptr_private = 2702 phba->sli4_hba.fcp_wq[qidx]; 2703 goto pass_check; 2704 } 2705 } 2706 } 2707 goto error_out; 2708 break; 2709 case LPFC_IDIAG_RQ: 2710 /* HDR queue */ 2711 if (phba->sli4_hba.hdr_rq && 2712 phba->sli4_hba.hdr_rq->queue_id == queid) { 2713 /* Sanity check */ 2714 rc = lpfc_idiag_que_param_check( 2715 phba->sli4_hba.hdr_rq, index, count); 2716 if (rc) 2717 goto error_out; 2718 idiag.ptr_private = phba->sli4_hba.hdr_rq; 2719 goto pass_check; 2720 } 2721 /* DAT queue */ 2722 if (phba->sli4_hba.dat_rq && 2723 phba->sli4_hba.dat_rq->queue_id == queid) { 2724 /* Sanity check */ 2725 rc = lpfc_idiag_que_param_check( 2726 phba->sli4_hba.dat_rq, index, count); 2727 if (rc) 2728 goto error_out; 2729 idiag.ptr_private = phba->sli4_hba.dat_rq; 2730 goto pass_check; 2731 } 2732 goto error_out; 2733 break; 2734 default: 2735 goto error_out; 2736 break; 2737 } 2738 2739 pass_check: 2740 2741 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2742 if (count == LPFC_QUE_ACC_BROWSE) 2743 idiag.offset.last_rd = index; 2744 } 2745 2746 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 2747 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 2748 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 2749 /* Additional sanity checks on write operation */ 2750 pque = (struct lpfc_queue *)idiag.ptr_private; 2751 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 2752 goto error_out; 2753 pentry = pque->qe[index].address; 2754 pentry += offset; 2755 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 2756 *pentry = value; 2757 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 2758 *pentry |= value; 2759 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 2760 *pentry &= ~value; 2761 } 2762 return nbytes; 2763 2764 error_out: 2765 /* Clean out command structure on command error out */ 2766 memset(&idiag, 0, sizeof(idiag)); 2767 return -EINVAL; 2768 } 2769 2770 /** 2771 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 2772 * @phba: The pointer to hba structure. 2773 * @pbuffer: The pointer to the buffer to copy the data to. 2774 * @len: The lenght of bytes to copied. 2775 * @drbregid: The id to doorbell registers. 2776 * 2777 * Description: 2778 * This routine reads a doorbell register and copies its content to the 2779 * user buffer pointed to by @pbuffer. 2780 * 2781 * Returns: 2782 * This function returns the amount of data that was copied into @pbuffer. 2783 **/ 2784 static int 2785 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 2786 int len, uint32_t drbregid) 2787 { 2788 2789 if (!pbuffer) 2790 return 0; 2791 2792 switch (drbregid) { 2793 case LPFC_DRB_EQCQ: 2794 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2795 "EQCQ-DRB-REG: 0x%08x\n", 2796 readl(phba->sli4_hba.EQCQDBregaddr)); 2797 break; 2798 case LPFC_DRB_MQ: 2799 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2800 "MQ-DRB-REG: 0x%08x\n", 2801 readl(phba->sli4_hba.MQDBregaddr)); 2802 break; 2803 case LPFC_DRB_WQ: 2804 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2805 "WQ-DRB-REG: 0x%08x\n", 2806 readl(phba->sli4_hba.WQDBregaddr)); 2807 break; 2808 case LPFC_DRB_RQ: 2809 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2810 "RQ-DRB-REG: 0x%08x\n", 2811 readl(phba->sli4_hba.RQDBregaddr)); 2812 break; 2813 default: 2814 break; 2815 } 2816 2817 return len; 2818 } 2819 2820 /** 2821 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 2822 * @file: The file pointer to read from. 2823 * @buf: The buffer to copy the data to. 2824 * @nbytes: The number of bytes to read. 2825 * @ppos: The position in the file to start reading from. 2826 * 2827 * Description: 2828 * This routine reads data from the @phba device doorbell register according 2829 * to the idiag command, and copies to user @buf. Depending on the doorbell 2830 * register read command setup, it does either a single doorbell register 2831 * read or dump all doorbell registers. 2832 * 2833 * Returns: 2834 * This function returns the amount of data that was read (this could be less 2835 * than @nbytes if the end of the file was reached) or a negative error value. 2836 **/ 2837 static ssize_t 2838 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 2839 loff_t *ppos) 2840 { 2841 struct lpfc_debug *debug = file->private_data; 2842 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2843 uint32_t drb_reg_id, i; 2844 char *pbuffer; 2845 int len = 0; 2846 2847 /* This is a user read operation */ 2848 debug->op = LPFC_IDIAG_OP_RD; 2849 2850 if (!debug->buffer) 2851 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 2852 if (!debug->buffer) 2853 return 0; 2854 pbuffer = debug->buffer; 2855 2856 if (*ppos) 2857 return 0; 2858 2859 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 2860 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 2861 else 2862 return 0; 2863 2864 if (drb_reg_id == LPFC_DRB_ACC_ALL) 2865 for (i = 1; i <= LPFC_DRB_MAX; i++) 2866 len = lpfc_idiag_drbacc_read_reg(phba, 2867 pbuffer, len, i); 2868 else 2869 len = lpfc_idiag_drbacc_read_reg(phba, 2870 pbuffer, len, drb_reg_id); 2871 2872 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2873 } 2874 2875 /** 2876 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 2877 * @file: The file pointer to read from. 2878 * @buf: The buffer to copy the user data from. 2879 * @nbytes: The number of bytes to get. 2880 * @ppos: The position in the file to start reading from. 2881 * 2882 * This routine get the debugfs idiag command struct from user space and then 2883 * perform the syntax check for port doorbell register read (dump) or write 2884 * (set) command accordingly. In the case of port queue read command, it sets 2885 * up the command in the idiag command struct for the following debugfs read 2886 * operation. In the case of port doorbell register write operation, it 2887 * executes the write operation into the port doorbell register accordingly. 2888 * 2889 * It returns the @nbytges passing in from debugfs user space when successful. 2890 * In case of error conditions, it returns proper error code back to the user 2891 * space. 2892 **/ 2893 static ssize_t 2894 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 2895 size_t nbytes, loff_t *ppos) 2896 { 2897 struct lpfc_debug *debug = file->private_data; 2898 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2899 uint32_t drb_reg_id, value, reg_val = 0; 2900 void __iomem *drb_reg; 2901 int rc; 2902 2903 /* This is a user write operation */ 2904 debug->op = LPFC_IDIAG_OP_WR; 2905 2906 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2907 if (rc < 0) 2908 return rc; 2909 2910 /* Sanity check on command line arguments */ 2911 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 2912 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 2913 2914 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 2915 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 2916 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2917 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 2918 goto error_out; 2919 if (drb_reg_id > LPFC_DRB_MAX) 2920 goto error_out; 2921 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 2922 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 2923 goto error_out; 2924 if ((drb_reg_id > LPFC_DRB_MAX) && 2925 (drb_reg_id != LPFC_DRB_ACC_ALL)) 2926 goto error_out; 2927 } else 2928 goto error_out; 2929 2930 /* Perform the write access operation */ 2931 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 2932 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 2933 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2934 switch (drb_reg_id) { 2935 case LPFC_DRB_EQCQ: 2936 drb_reg = phba->sli4_hba.EQCQDBregaddr; 2937 break; 2938 case LPFC_DRB_MQ: 2939 drb_reg = phba->sli4_hba.MQDBregaddr; 2940 break; 2941 case LPFC_DRB_WQ: 2942 drb_reg = phba->sli4_hba.WQDBregaddr; 2943 break; 2944 case LPFC_DRB_RQ: 2945 drb_reg = phba->sli4_hba.RQDBregaddr; 2946 break; 2947 default: 2948 goto error_out; 2949 } 2950 2951 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 2952 reg_val = value; 2953 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 2954 reg_val = readl(drb_reg); 2955 reg_val |= value; 2956 } 2957 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2958 reg_val = readl(drb_reg); 2959 reg_val &= ~value; 2960 } 2961 writel(reg_val, drb_reg); 2962 readl(drb_reg); /* flush */ 2963 } 2964 return nbytes; 2965 2966 error_out: 2967 /* Clean out command structure on command error out */ 2968 memset(&idiag, 0, sizeof(idiag)); 2969 return -EINVAL; 2970 } 2971 2972 /** 2973 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 2974 * @phba: The pointer to hba structure. 2975 * @pbuffer: The pointer to the buffer to copy the data to. 2976 * @len: The lenght of bytes to copied. 2977 * @drbregid: The id to doorbell registers. 2978 * 2979 * Description: 2980 * This routine reads a control register and copies its content to the 2981 * user buffer pointed to by @pbuffer. 2982 * 2983 * Returns: 2984 * This function returns the amount of data that was copied into @pbuffer. 2985 **/ 2986 static int 2987 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 2988 int len, uint32_t ctlregid) 2989 { 2990 2991 if (!pbuffer) 2992 return 0; 2993 2994 switch (ctlregid) { 2995 case LPFC_CTL_PORT_SEM: 2996 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2997 "Port SemReg: 0x%08x\n", 2998 readl(phba->sli4_hba.conf_regs_memmap_p + 2999 LPFC_CTL_PORT_SEM_OFFSET)); 3000 break; 3001 case LPFC_CTL_PORT_STA: 3002 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 3003 "Port StaReg: 0x%08x\n", 3004 readl(phba->sli4_hba.conf_regs_memmap_p + 3005 LPFC_CTL_PORT_STA_OFFSET)); 3006 break; 3007 case LPFC_CTL_PORT_CTL: 3008 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 3009 "Port CtlReg: 0x%08x\n", 3010 readl(phba->sli4_hba.conf_regs_memmap_p + 3011 LPFC_CTL_PORT_CTL_OFFSET)); 3012 break; 3013 case LPFC_CTL_PORT_ER1: 3014 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 3015 "Port Er1Reg: 0x%08x\n", 3016 readl(phba->sli4_hba.conf_regs_memmap_p + 3017 LPFC_CTL_PORT_ER1_OFFSET)); 3018 break; 3019 case LPFC_CTL_PORT_ER2: 3020 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 3021 "Port Er2Reg: 0x%08x\n", 3022 readl(phba->sli4_hba.conf_regs_memmap_p + 3023 LPFC_CTL_PORT_ER2_OFFSET)); 3024 break; 3025 case LPFC_CTL_PDEV_CTL: 3026 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 3027 "PDev CtlReg: 0x%08x\n", 3028 readl(phba->sli4_hba.conf_regs_memmap_p + 3029 LPFC_CTL_PDEV_CTL_OFFSET)); 3030 break; 3031 default: 3032 break; 3033 } 3034 return len; 3035 } 3036 3037 /** 3038 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 3039 * @file: The file pointer to read from. 3040 * @buf: The buffer to copy the data to. 3041 * @nbytes: The number of bytes to read. 3042 * @ppos: The position in the file to start reading from. 3043 * 3044 * Description: 3045 * This routine reads data from the @phba port and device registers according 3046 * to the idiag command, and copies to user @buf. 3047 * 3048 * Returns: 3049 * This function returns the amount of data that was read (this could be less 3050 * than @nbytes if the end of the file was reached) or a negative error value. 3051 **/ 3052 static ssize_t 3053 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 3054 loff_t *ppos) 3055 { 3056 struct lpfc_debug *debug = file->private_data; 3057 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3058 uint32_t ctl_reg_id, i; 3059 char *pbuffer; 3060 int len = 0; 3061 3062 /* This is a user read operation */ 3063 debug->op = LPFC_IDIAG_OP_RD; 3064 3065 if (!debug->buffer) 3066 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 3067 if (!debug->buffer) 3068 return 0; 3069 pbuffer = debug->buffer; 3070 3071 if (*ppos) 3072 return 0; 3073 3074 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 3075 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 3076 else 3077 return 0; 3078 3079 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 3080 for (i = 1; i <= LPFC_CTL_MAX; i++) 3081 len = lpfc_idiag_ctlacc_read_reg(phba, 3082 pbuffer, len, i); 3083 else 3084 len = lpfc_idiag_ctlacc_read_reg(phba, 3085 pbuffer, len, ctl_reg_id); 3086 3087 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3088 } 3089 3090 /** 3091 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 3092 * @file: The file pointer to read from. 3093 * @buf: The buffer to copy the user data from. 3094 * @nbytes: The number of bytes to get. 3095 * @ppos: The position in the file to start reading from. 3096 * 3097 * This routine get the debugfs idiag command struct from user space and then 3098 * perform the syntax check for port and device control register read (dump) 3099 * or write (set) command accordingly. 3100 * 3101 * It returns the @nbytges passing in from debugfs user space when successful. 3102 * In case of error conditions, it returns proper error code back to the user 3103 * space. 3104 **/ 3105 static ssize_t 3106 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 3107 size_t nbytes, loff_t *ppos) 3108 { 3109 struct lpfc_debug *debug = file->private_data; 3110 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3111 uint32_t ctl_reg_id, value, reg_val = 0; 3112 void __iomem *ctl_reg; 3113 int rc; 3114 3115 /* This is a user write operation */ 3116 debug->op = LPFC_IDIAG_OP_WR; 3117 3118 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3119 if (rc < 0) 3120 return rc; 3121 3122 /* Sanity check on command line arguments */ 3123 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 3124 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 3125 3126 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 3127 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 3128 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 3129 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 3130 goto error_out; 3131 if (ctl_reg_id > LPFC_CTL_MAX) 3132 goto error_out; 3133 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 3134 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 3135 goto error_out; 3136 if ((ctl_reg_id > LPFC_CTL_MAX) && 3137 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 3138 goto error_out; 3139 } else 3140 goto error_out; 3141 3142 /* Perform the write access operation */ 3143 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 3144 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 3145 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 3146 switch (ctl_reg_id) { 3147 case LPFC_CTL_PORT_SEM: 3148 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3149 LPFC_CTL_PORT_SEM_OFFSET; 3150 break; 3151 case LPFC_CTL_PORT_STA: 3152 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3153 LPFC_CTL_PORT_STA_OFFSET; 3154 break; 3155 case LPFC_CTL_PORT_CTL: 3156 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3157 LPFC_CTL_PORT_CTL_OFFSET; 3158 break; 3159 case LPFC_CTL_PORT_ER1: 3160 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3161 LPFC_CTL_PORT_ER1_OFFSET; 3162 break; 3163 case LPFC_CTL_PORT_ER2: 3164 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3165 LPFC_CTL_PORT_ER2_OFFSET; 3166 break; 3167 case LPFC_CTL_PDEV_CTL: 3168 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 3169 LPFC_CTL_PDEV_CTL_OFFSET; 3170 break; 3171 default: 3172 goto error_out; 3173 } 3174 3175 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 3176 reg_val = value; 3177 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 3178 reg_val = readl(ctl_reg); 3179 reg_val |= value; 3180 } 3181 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 3182 reg_val = readl(ctl_reg); 3183 reg_val &= ~value; 3184 } 3185 writel(reg_val, ctl_reg); 3186 readl(ctl_reg); /* flush */ 3187 } 3188 return nbytes; 3189 3190 error_out: 3191 /* Clean out command structure on command error out */ 3192 memset(&idiag, 0, sizeof(idiag)); 3193 return -EINVAL; 3194 } 3195 3196 /** 3197 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 3198 * @phba: Pointer to HBA context object. 3199 * @pbuffer: Pointer to data buffer. 3200 * 3201 * Description: 3202 * This routine gets the driver mailbox access debugfs setup information. 3203 * 3204 * Returns: 3205 * This function returns the amount of data that was read (this could be less 3206 * than @nbytes if the end of the file was reached) or a negative error value. 3207 **/ 3208 static int 3209 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 3210 { 3211 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 3212 int len = 0; 3213 3214 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3215 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3216 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3217 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3218 3219 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3220 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 3221 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3222 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 3223 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3224 "mbx_word_cnt: %04d\n", mbx_word_cnt); 3225 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 3226 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 3227 3228 return len; 3229 } 3230 3231 /** 3232 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 3233 * @file: The file pointer to read from. 3234 * @buf: The buffer to copy the data to. 3235 * @nbytes: The number of bytes to read. 3236 * @ppos: The position in the file to start reading from. 3237 * 3238 * Description: 3239 * This routine reads data from the @phba driver mailbox access debugfs setup 3240 * information. 3241 * 3242 * Returns: 3243 * This function returns the amount of data that was read (this could be less 3244 * than @nbytes if the end of the file was reached) or a negative error value. 3245 **/ 3246 static ssize_t 3247 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 3248 loff_t *ppos) 3249 { 3250 struct lpfc_debug *debug = file->private_data; 3251 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3252 char *pbuffer; 3253 int len = 0; 3254 3255 /* This is a user read operation */ 3256 debug->op = LPFC_IDIAG_OP_RD; 3257 3258 if (!debug->buffer) 3259 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 3260 if (!debug->buffer) 3261 return 0; 3262 pbuffer = debug->buffer; 3263 3264 if (*ppos) 3265 return 0; 3266 3267 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 3268 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 3269 return 0; 3270 3271 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 3272 3273 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3274 } 3275 3276 /** 3277 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 3278 * @file: The file pointer to read from. 3279 * @buf: The buffer to copy the user data from. 3280 * @nbytes: The number of bytes to get. 3281 * @ppos: The position in the file to start reading from. 3282 * 3283 * This routine get the debugfs idiag command struct from user space and then 3284 * perform the syntax check for driver mailbox command (dump) and sets up the 3285 * necessary states in the idiag command struct accordingly. 3286 * 3287 * It returns the @nbytges passing in from debugfs user space when successful. 3288 * In case of error conditions, it returns proper error code back to the user 3289 * space. 3290 **/ 3291 static ssize_t 3292 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 3293 size_t nbytes, loff_t *ppos) 3294 { 3295 struct lpfc_debug *debug = file->private_data; 3296 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 3297 int rc; 3298 3299 /* This is a user write operation */ 3300 debug->op = LPFC_IDIAG_OP_WR; 3301 3302 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3303 if (rc < 0) 3304 return rc; 3305 3306 /* Sanity check on command line arguments */ 3307 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3308 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3309 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3310 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3311 3312 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 3313 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 3314 goto error_out; 3315 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 3316 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 3317 goto error_out; 3318 if (mbx_word_cnt > sizeof(MAILBOX_t)) 3319 goto error_out; 3320 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 3321 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 3322 goto error_out; 3323 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 3324 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 3325 goto error_out; 3326 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 3327 goto error_out; 3328 if (mbx_mbox_cmd != 0x9b) 3329 goto error_out; 3330 } else 3331 goto error_out; 3332 3333 if (mbx_word_cnt == 0) 3334 goto error_out; 3335 if (rc != LPFC_MBX_DMP_ARG) 3336 goto error_out; 3337 if (mbx_mbox_cmd & ~0xff) 3338 goto error_out; 3339 3340 /* condition for stop mailbox dump */ 3341 if (mbx_dump_cnt == 0) 3342 goto reset_out; 3343 3344 return nbytes; 3345 3346 reset_out: 3347 /* Clean out command structure on command error out */ 3348 memset(&idiag, 0, sizeof(idiag)); 3349 return nbytes; 3350 3351 error_out: 3352 /* Clean out command structure on command error out */ 3353 memset(&idiag, 0, sizeof(idiag)); 3354 return -EINVAL; 3355 } 3356 3357 /** 3358 * lpfc_idiag_extacc_avail_get - get the available extents information 3359 * @phba: pointer to lpfc hba data structure. 3360 * @pbuffer: pointer to internal buffer. 3361 * @len: length into the internal buffer data has been copied. 3362 * 3363 * Description: 3364 * This routine is to get the available extent information. 3365 * 3366 * Returns: 3367 * overall lenth of the data read into the internal buffer. 3368 **/ 3369 static int 3370 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 3371 { 3372 uint16_t ext_cnt, ext_size; 3373 3374 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3375 "\nAvailable Extents Information:\n"); 3376 3377 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3378 "\tPort Available VPI extents: "); 3379 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 3380 &ext_cnt, &ext_size); 3381 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3382 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3383 3384 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3385 "\tPort Available VFI extents: "); 3386 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 3387 &ext_cnt, &ext_size); 3388 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3389 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3390 3391 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3392 "\tPort Available RPI extents: "); 3393 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 3394 &ext_cnt, &ext_size); 3395 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3396 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3397 3398 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3399 "\tPort Available XRI extents: "); 3400 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 3401 &ext_cnt, &ext_size); 3402 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3403 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3404 3405 return len; 3406 } 3407 3408 /** 3409 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 3410 * @phba: pointer to lpfc hba data structure. 3411 * @pbuffer: pointer to internal buffer. 3412 * @len: length into the internal buffer data has been copied. 3413 * 3414 * Description: 3415 * This routine is to get the allocated extent information. 3416 * 3417 * Returns: 3418 * overall lenth of the data read into the internal buffer. 3419 **/ 3420 static int 3421 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 3422 { 3423 uint16_t ext_cnt, ext_size; 3424 int rc; 3425 3426 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3427 "\nAllocated Extents Information:\n"); 3428 3429 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3430 "\tHost Allocated VPI extents: "); 3431 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 3432 &ext_cnt, &ext_size); 3433 if (!rc) 3434 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3435 "Port %d Extent %3d, Size %3d\n", 3436 phba->brd_no, ext_cnt, ext_size); 3437 else 3438 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3439 "N/A\n"); 3440 3441 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3442 "\tHost Allocated VFI extents: "); 3443 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 3444 &ext_cnt, &ext_size); 3445 if (!rc) 3446 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3447 "Port %d Extent %3d, Size %3d\n", 3448 phba->brd_no, ext_cnt, ext_size); 3449 else 3450 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3451 "N/A\n"); 3452 3453 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3454 "\tHost Allocated RPI extents: "); 3455 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 3456 &ext_cnt, &ext_size); 3457 if (!rc) 3458 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3459 "Port %d Extent %3d, Size %3d\n", 3460 phba->brd_no, ext_cnt, ext_size); 3461 else 3462 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3463 "N/A\n"); 3464 3465 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3466 "\tHost Allocated XRI extents: "); 3467 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 3468 &ext_cnt, &ext_size); 3469 if (!rc) 3470 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3471 "Port %d Extent %3d, Size %3d\n", 3472 phba->brd_no, ext_cnt, ext_size); 3473 else 3474 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3475 "N/A\n"); 3476 3477 return len; 3478 } 3479 3480 /** 3481 * lpfc_idiag_extacc_drivr_get - get driver extent information 3482 * @phba: pointer to lpfc hba data structure. 3483 * @pbuffer: pointer to internal buffer. 3484 * @len: length into the internal buffer data has been copied. 3485 * 3486 * Description: 3487 * This routine is to get the driver extent information. 3488 * 3489 * Returns: 3490 * overall lenth of the data read into the internal buffer. 3491 **/ 3492 static int 3493 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 3494 { 3495 struct lpfc_rsrc_blks *rsrc_blks; 3496 int index; 3497 3498 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3499 "\nDriver Extents Information:\n"); 3500 3501 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3502 "\tVPI extents:\n"); 3503 index = 0; 3504 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 3505 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3506 "\t\tBlock %3d: Start %4d, Count %4d\n", 3507 index, rsrc_blks->rsrc_start, 3508 rsrc_blks->rsrc_size); 3509 index++; 3510 } 3511 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3512 "\tVFI extents:\n"); 3513 index = 0; 3514 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 3515 list) { 3516 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3517 "\t\tBlock %3d: Start %4d, Count %4d\n", 3518 index, rsrc_blks->rsrc_start, 3519 rsrc_blks->rsrc_size); 3520 index++; 3521 } 3522 3523 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3524 "\tRPI extents:\n"); 3525 index = 0; 3526 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 3527 list) { 3528 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3529 "\t\tBlock %3d: Start %4d, Count %4d\n", 3530 index, rsrc_blks->rsrc_start, 3531 rsrc_blks->rsrc_size); 3532 index++; 3533 } 3534 3535 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3536 "\tXRI extents:\n"); 3537 index = 0; 3538 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 3539 list) { 3540 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3541 "\t\tBlock %3d: Start %4d, Count %4d\n", 3542 index, rsrc_blks->rsrc_start, 3543 rsrc_blks->rsrc_size); 3544 index++; 3545 } 3546 3547 return len; 3548 } 3549 3550 /** 3551 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 3552 * @file: The file pointer to read from. 3553 * @buf: The buffer to copy the user data from. 3554 * @nbytes: The number of bytes to get. 3555 * @ppos: The position in the file to start reading from. 3556 * 3557 * This routine get the debugfs idiag command struct from user space and then 3558 * perform the syntax check for extent information access commands and sets 3559 * up the necessary states in the idiag command struct accordingly. 3560 * 3561 * It returns the @nbytges passing in from debugfs user space when successful. 3562 * In case of error conditions, it returns proper error code back to the user 3563 * space. 3564 **/ 3565 static ssize_t 3566 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 3567 size_t nbytes, loff_t *ppos) 3568 { 3569 struct lpfc_debug *debug = file->private_data; 3570 uint32_t ext_map; 3571 int rc; 3572 3573 /* This is a user write operation */ 3574 debug->op = LPFC_IDIAG_OP_WR; 3575 3576 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3577 if (rc < 0) 3578 return rc; 3579 3580 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 3581 3582 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 3583 goto error_out; 3584 if (rc != LPFC_EXT_ACC_CMD_ARG) 3585 goto error_out; 3586 if (!(ext_map & LPFC_EXT_ACC_ALL)) 3587 goto error_out; 3588 3589 return nbytes; 3590 error_out: 3591 /* Clean out command structure on command error out */ 3592 memset(&idiag, 0, sizeof(idiag)); 3593 return -EINVAL; 3594 } 3595 3596 /** 3597 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 3598 * @file: The file pointer to read from. 3599 * @buf: The buffer to copy the data to. 3600 * @nbytes: The number of bytes to read. 3601 * @ppos: The position in the file to start reading from. 3602 * 3603 * Description: 3604 * This routine reads data from the proper extent information according to 3605 * the idiag command, and copies to user @buf. 3606 * 3607 * Returns: 3608 * This function returns the amount of data that was read (this could be less 3609 * than @nbytes if the end of the file was reached) or a negative error value. 3610 **/ 3611 static ssize_t 3612 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 3613 loff_t *ppos) 3614 { 3615 struct lpfc_debug *debug = file->private_data; 3616 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3617 char *pbuffer; 3618 uint32_t ext_map; 3619 int len = 0; 3620 3621 /* This is a user read operation */ 3622 debug->op = LPFC_IDIAG_OP_RD; 3623 3624 if (!debug->buffer) 3625 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 3626 if (!debug->buffer) 3627 return 0; 3628 pbuffer = debug->buffer; 3629 if (*ppos) 3630 return 0; 3631 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 3632 return 0; 3633 3634 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 3635 if (ext_map & LPFC_EXT_ACC_AVAIL) 3636 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 3637 if (ext_map & LPFC_EXT_ACC_ALLOC) 3638 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 3639 if (ext_map & LPFC_EXT_ACC_DRIVR) 3640 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 3641 3642 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3643 } 3644 3645 #undef lpfc_debugfs_op_disc_trc 3646 static const struct file_operations lpfc_debugfs_op_disc_trc = { 3647 .owner = THIS_MODULE, 3648 .open = lpfc_debugfs_disc_trc_open, 3649 .llseek = lpfc_debugfs_lseek, 3650 .read = lpfc_debugfs_read, 3651 .release = lpfc_debugfs_release, 3652 }; 3653 3654 #undef lpfc_debugfs_op_nodelist 3655 static const struct file_operations lpfc_debugfs_op_nodelist = { 3656 .owner = THIS_MODULE, 3657 .open = lpfc_debugfs_nodelist_open, 3658 .llseek = lpfc_debugfs_lseek, 3659 .read = lpfc_debugfs_read, 3660 .release = lpfc_debugfs_release, 3661 }; 3662 3663 #undef lpfc_debugfs_op_hbqinfo 3664 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 3665 .owner = THIS_MODULE, 3666 .open = lpfc_debugfs_hbqinfo_open, 3667 .llseek = lpfc_debugfs_lseek, 3668 .read = lpfc_debugfs_read, 3669 .release = lpfc_debugfs_release, 3670 }; 3671 3672 #undef lpfc_debugfs_op_dumpHBASlim 3673 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 3674 .owner = THIS_MODULE, 3675 .open = lpfc_debugfs_dumpHBASlim_open, 3676 .llseek = lpfc_debugfs_lseek, 3677 .read = lpfc_debugfs_read, 3678 .release = lpfc_debugfs_release, 3679 }; 3680 3681 #undef lpfc_debugfs_op_dumpHostSlim 3682 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 3683 .owner = THIS_MODULE, 3684 .open = lpfc_debugfs_dumpHostSlim_open, 3685 .llseek = lpfc_debugfs_lseek, 3686 .read = lpfc_debugfs_read, 3687 .release = lpfc_debugfs_release, 3688 }; 3689 3690 #undef lpfc_debugfs_op_dumpData 3691 static const struct file_operations lpfc_debugfs_op_dumpData = { 3692 .owner = THIS_MODULE, 3693 .open = lpfc_debugfs_dumpData_open, 3694 .llseek = lpfc_debugfs_lseek, 3695 .read = lpfc_debugfs_read, 3696 .write = lpfc_debugfs_dumpDataDif_write, 3697 .release = lpfc_debugfs_dumpDataDif_release, 3698 }; 3699 3700 #undef lpfc_debugfs_op_dumpDif 3701 static const struct file_operations lpfc_debugfs_op_dumpDif = { 3702 .owner = THIS_MODULE, 3703 .open = lpfc_debugfs_dumpDif_open, 3704 .llseek = lpfc_debugfs_lseek, 3705 .read = lpfc_debugfs_read, 3706 .write = lpfc_debugfs_dumpDataDif_write, 3707 .release = lpfc_debugfs_dumpDataDif_release, 3708 }; 3709 3710 #undef lpfc_debugfs_op_dif_err 3711 static const struct file_operations lpfc_debugfs_op_dif_err = { 3712 .owner = THIS_MODULE, 3713 .open = simple_open, 3714 .llseek = lpfc_debugfs_lseek, 3715 .read = lpfc_debugfs_dif_err_read, 3716 .write = lpfc_debugfs_dif_err_write, 3717 .release = lpfc_debugfs_dif_err_release, 3718 }; 3719 3720 #undef lpfc_debugfs_op_slow_ring_trc 3721 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 3722 .owner = THIS_MODULE, 3723 .open = lpfc_debugfs_slow_ring_trc_open, 3724 .llseek = lpfc_debugfs_lseek, 3725 .read = lpfc_debugfs_read, 3726 .release = lpfc_debugfs_release, 3727 }; 3728 3729 static struct dentry *lpfc_debugfs_root = NULL; 3730 static atomic_t lpfc_debugfs_hba_count; 3731 3732 /* 3733 * File operations for the iDiag debugfs 3734 */ 3735 #undef lpfc_idiag_op_pciCfg 3736 static const struct file_operations lpfc_idiag_op_pciCfg = { 3737 .owner = THIS_MODULE, 3738 .open = lpfc_idiag_open, 3739 .llseek = lpfc_debugfs_lseek, 3740 .read = lpfc_idiag_pcicfg_read, 3741 .write = lpfc_idiag_pcicfg_write, 3742 .release = lpfc_idiag_cmd_release, 3743 }; 3744 3745 #undef lpfc_idiag_op_barAcc 3746 static const struct file_operations lpfc_idiag_op_barAcc = { 3747 .owner = THIS_MODULE, 3748 .open = lpfc_idiag_open, 3749 .llseek = lpfc_debugfs_lseek, 3750 .read = lpfc_idiag_baracc_read, 3751 .write = lpfc_idiag_baracc_write, 3752 .release = lpfc_idiag_cmd_release, 3753 }; 3754 3755 #undef lpfc_idiag_op_queInfo 3756 static const struct file_operations lpfc_idiag_op_queInfo = { 3757 .owner = THIS_MODULE, 3758 .open = lpfc_idiag_open, 3759 .read = lpfc_idiag_queinfo_read, 3760 .release = lpfc_idiag_release, 3761 }; 3762 3763 #undef lpfc_idiag_op_queAcc 3764 static const struct file_operations lpfc_idiag_op_queAcc = { 3765 .owner = THIS_MODULE, 3766 .open = lpfc_idiag_open, 3767 .llseek = lpfc_debugfs_lseek, 3768 .read = lpfc_idiag_queacc_read, 3769 .write = lpfc_idiag_queacc_write, 3770 .release = lpfc_idiag_cmd_release, 3771 }; 3772 3773 #undef lpfc_idiag_op_drbAcc 3774 static const struct file_operations lpfc_idiag_op_drbAcc = { 3775 .owner = THIS_MODULE, 3776 .open = lpfc_idiag_open, 3777 .llseek = lpfc_debugfs_lseek, 3778 .read = lpfc_idiag_drbacc_read, 3779 .write = lpfc_idiag_drbacc_write, 3780 .release = lpfc_idiag_cmd_release, 3781 }; 3782 3783 #undef lpfc_idiag_op_ctlAcc 3784 static const struct file_operations lpfc_idiag_op_ctlAcc = { 3785 .owner = THIS_MODULE, 3786 .open = lpfc_idiag_open, 3787 .llseek = lpfc_debugfs_lseek, 3788 .read = lpfc_idiag_ctlacc_read, 3789 .write = lpfc_idiag_ctlacc_write, 3790 .release = lpfc_idiag_cmd_release, 3791 }; 3792 3793 #undef lpfc_idiag_op_mbxAcc 3794 static const struct file_operations lpfc_idiag_op_mbxAcc = { 3795 .owner = THIS_MODULE, 3796 .open = lpfc_idiag_open, 3797 .llseek = lpfc_debugfs_lseek, 3798 .read = lpfc_idiag_mbxacc_read, 3799 .write = lpfc_idiag_mbxacc_write, 3800 .release = lpfc_idiag_cmd_release, 3801 }; 3802 3803 #undef lpfc_idiag_op_extAcc 3804 static const struct file_operations lpfc_idiag_op_extAcc = { 3805 .owner = THIS_MODULE, 3806 .open = lpfc_idiag_open, 3807 .llseek = lpfc_debugfs_lseek, 3808 .read = lpfc_idiag_extacc_read, 3809 .write = lpfc_idiag_extacc_write, 3810 .release = lpfc_idiag_cmd_release, 3811 }; 3812 3813 #endif 3814 3815 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 3816 * @phba: Pointer to HBA context object. 3817 * @dmabuf: Pointer to a DMA buffer descriptor. 3818 * 3819 * Description: 3820 * This routine dump a bsg pass-through non-embedded mailbox command with 3821 * external buffer. 3822 **/ 3823 void 3824 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 3825 enum mbox_type mbox_tp, enum dma_type dma_tp, 3826 enum sta_type sta_tp, 3827 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 3828 { 3829 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3830 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 3831 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 3832 int len = 0; 3833 uint32_t do_dump = 0; 3834 uint32_t *pword; 3835 uint32_t i; 3836 3837 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 3838 return; 3839 3840 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3841 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3842 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3843 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3844 3845 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 3846 (*mbx_dump_cnt == 0) || 3847 (*mbx_word_cnt == 0)) 3848 return; 3849 3850 if (*mbx_mbox_cmd != 0x9B) 3851 return; 3852 3853 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 3854 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 3855 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 3856 printk(KERN_ERR "\nRead mbox command (x%x), " 3857 "nemb:0x%x, extbuf_cnt:%d:\n", 3858 sta_tp, nemb_tp, ext_buf); 3859 } 3860 } 3861 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 3862 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 3863 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 3864 printk(KERN_ERR "\nRead mbox buffer (x%x), " 3865 "nemb:0x%x, extbuf_seq:%d:\n", 3866 sta_tp, nemb_tp, ext_buf); 3867 } 3868 } 3869 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 3870 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 3871 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 3872 printk(KERN_ERR "\nWrite mbox command (x%x), " 3873 "nemb:0x%x, extbuf_cnt:%d:\n", 3874 sta_tp, nemb_tp, ext_buf); 3875 } 3876 } 3877 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 3878 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 3879 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 3880 printk(KERN_ERR "\nWrite mbox buffer (x%x), " 3881 "nemb:0x%x, extbuf_seq:%d:\n", 3882 sta_tp, nemb_tp, ext_buf); 3883 } 3884 } 3885 3886 /* dump buffer content */ 3887 if (do_dump) { 3888 pword = (uint32_t *)dmabuf->virt; 3889 for (i = 0; i < *mbx_word_cnt; i++) { 3890 if (!(i % 8)) { 3891 if (i != 0) 3892 printk(KERN_ERR "%s\n", line_buf); 3893 len = 0; 3894 len += snprintf(line_buf+len, 3895 LPFC_MBX_ACC_LBUF_SZ-len, 3896 "%03d: ", i); 3897 } 3898 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 3899 "%08x ", (uint32_t)*pword); 3900 pword++; 3901 } 3902 if ((i - 1) % 8) 3903 printk(KERN_ERR "%s\n", line_buf); 3904 (*mbx_dump_cnt)--; 3905 } 3906 3907 /* Clean out command structure on reaching dump count */ 3908 if (*mbx_dump_cnt == 0) 3909 memset(&idiag, 0, sizeof(idiag)); 3910 return; 3911 #endif 3912 } 3913 3914 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 3915 * @phba: Pointer to HBA context object. 3916 * @dmabuf: Pointer to a DMA buffer descriptor. 3917 * 3918 * Description: 3919 * This routine dump a pass-through non-embedded mailbox command from issue 3920 * mailbox command. 3921 **/ 3922 void 3923 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 3924 { 3925 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3926 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 3927 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 3928 int len = 0; 3929 uint32_t *pword; 3930 uint8_t *pbyte; 3931 uint32_t i, j; 3932 3933 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 3934 return; 3935 3936 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3937 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3938 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3939 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3940 3941 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 3942 (*mbx_dump_cnt == 0) || 3943 (*mbx_word_cnt == 0)) 3944 return; 3945 3946 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 3947 (*mbx_mbox_cmd != pmbox->mbxCommand)) 3948 return; 3949 3950 /* dump buffer content */ 3951 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 3952 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n", 3953 pmbox->mbxCommand); 3954 pword = (uint32_t *)pmbox; 3955 for (i = 0; i < *mbx_word_cnt; i++) { 3956 if (!(i % 8)) { 3957 if (i != 0) 3958 printk(KERN_ERR "%s\n", line_buf); 3959 len = 0; 3960 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 3961 len += snprintf(line_buf+len, 3962 LPFC_MBX_ACC_LBUF_SZ-len, 3963 "%03d: ", i); 3964 } 3965 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 3966 "%08x ", 3967 ((uint32_t)*pword) & 0xffffffff); 3968 pword++; 3969 } 3970 if ((i - 1) % 8) 3971 printk(KERN_ERR "%s\n", line_buf); 3972 printk(KERN_ERR "\n"); 3973 } 3974 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 3975 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n", 3976 pmbox->mbxCommand); 3977 pbyte = (uint8_t *)pmbox; 3978 for (i = 0; i < *mbx_word_cnt; i++) { 3979 if (!(i % 8)) { 3980 if (i != 0) 3981 printk(KERN_ERR "%s\n", line_buf); 3982 len = 0; 3983 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 3984 len += snprintf(line_buf+len, 3985 LPFC_MBX_ACC_LBUF_SZ-len, 3986 "%03d: ", i); 3987 } 3988 for (j = 0; j < 4; j++) { 3989 len += snprintf(line_buf+len, 3990 LPFC_MBX_ACC_LBUF_SZ-len, 3991 "%02x", 3992 ((uint8_t)*pbyte) & 0xff); 3993 pbyte++; 3994 } 3995 len += snprintf(line_buf+len, 3996 LPFC_MBX_ACC_LBUF_SZ-len, " "); 3997 } 3998 if ((i - 1) % 8) 3999 printk(KERN_ERR "%s\n", line_buf); 4000 printk(KERN_ERR "\n"); 4001 } 4002 (*mbx_dump_cnt)--; 4003 4004 /* Clean out command structure on reaching dump count */ 4005 if (*mbx_dump_cnt == 0) 4006 memset(&idiag, 0, sizeof(idiag)); 4007 return; 4008 #endif 4009 } 4010 4011 /** 4012 * lpfc_debugfs_initialize - Initialize debugfs for a vport 4013 * @vport: The vport pointer to initialize. 4014 * 4015 * Description: 4016 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 4017 * If not already created, this routine will create the lpfc directory, and 4018 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 4019 * also create each file used to access lpfc specific debugfs information. 4020 **/ 4021 inline void 4022 lpfc_debugfs_initialize(struct lpfc_vport *vport) 4023 { 4024 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4025 struct lpfc_hba *phba = vport->phba; 4026 char name[64]; 4027 uint32_t num, i; 4028 bool pport_setup = false; 4029 4030 if (!lpfc_debugfs_enable) 4031 return; 4032 4033 /* Setup lpfc root directory */ 4034 if (!lpfc_debugfs_root) { 4035 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 4036 atomic_set(&lpfc_debugfs_hba_count, 0); 4037 if (!lpfc_debugfs_root) { 4038 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4039 "0408 Cannot create debugfs root\n"); 4040 goto debug_failed; 4041 } 4042 } 4043 if (!lpfc_debugfs_start_time) 4044 lpfc_debugfs_start_time = jiffies; 4045 4046 /* Setup funcX directory for specific HBA PCI function */ 4047 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 4048 if (!phba->hba_debugfs_root) { 4049 pport_setup = true; 4050 phba->hba_debugfs_root = 4051 debugfs_create_dir(name, lpfc_debugfs_root); 4052 if (!phba->hba_debugfs_root) { 4053 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4054 "0412 Cannot create debugfs hba\n"); 4055 goto debug_failed; 4056 } 4057 atomic_inc(&lpfc_debugfs_hba_count); 4058 atomic_set(&phba->debugfs_vport_count, 0); 4059 4060 /* Setup hbqinfo */ 4061 snprintf(name, sizeof(name), "hbqinfo"); 4062 phba->debug_hbqinfo = 4063 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4064 phba->hba_debugfs_root, 4065 phba, &lpfc_debugfs_op_hbqinfo); 4066 if (!phba->debug_hbqinfo) { 4067 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4068 "0411 Cannot create debugfs hbqinfo\n"); 4069 goto debug_failed; 4070 } 4071 4072 /* Setup dumpHBASlim */ 4073 if (phba->sli_rev < LPFC_SLI_REV4) { 4074 snprintf(name, sizeof(name), "dumpHBASlim"); 4075 phba->debug_dumpHBASlim = 4076 debugfs_create_file(name, 4077 S_IFREG|S_IRUGO|S_IWUSR, 4078 phba->hba_debugfs_root, 4079 phba, &lpfc_debugfs_op_dumpHBASlim); 4080 if (!phba->debug_dumpHBASlim) { 4081 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4082 "0413 Cannot create debugfs " 4083 "dumpHBASlim\n"); 4084 goto debug_failed; 4085 } 4086 } else 4087 phba->debug_dumpHBASlim = NULL; 4088 4089 /* Setup dumpHostSlim */ 4090 if (phba->sli_rev < LPFC_SLI_REV4) { 4091 snprintf(name, sizeof(name), "dumpHostSlim"); 4092 phba->debug_dumpHostSlim = 4093 debugfs_create_file(name, 4094 S_IFREG|S_IRUGO|S_IWUSR, 4095 phba->hba_debugfs_root, 4096 phba, &lpfc_debugfs_op_dumpHostSlim); 4097 if (!phba->debug_dumpHostSlim) { 4098 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4099 "0414 Cannot create debugfs " 4100 "dumpHostSlim\n"); 4101 goto debug_failed; 4102 } 4103 } else 4104 phba->debug_dumpHostSlim = NULL; 4105 4106 /* Setup dumpData */ 4107 snprintf(name, sizeof(name), "dumpData"); 4108 phba->debug_dumpData = 4109 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4110 phba->hba_debugfs_root, 4111 phba, &lpfc_debugfs_op_dumpData); 4112 if (!phba->debug_dumpData) { 4113 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4114 "0800 Cannot create debugfs dumpData\n"); 4115 goto debug_failed; 4116 } 4117 4118 /* Setup dumpDif */ 4119 snprintf(name, sizeof(name), "dumpDif"); 4120 phba->debug_dumpDif = 4121 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4122 phba->hba_debugfs_root, 4123 phba, &lpfc_debugfs_op_dumpDif); 4124 if (!phba->debug_dumpDif) { 4125 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4126 "0801 Cannot create debugfs dumpDif\n"); 4127 goto debug_failed; 4128 } 4129 4130 /* Setup DIF Error Injections */ 4131 snprintf(name, sizeof(name), "InjErrLBA"); 4132 phba->debug_InjErrLBA = 4133 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4134 phba->hba_debugfs_root, 4135 phba, &lpfc_debugfs_op_dif_err); 4136 if (!phba->debug_InjErrLBA) { 4137 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4138 "0807 Cannot create debugfs InjErrLBA\n"); 4139 goto debug_failed; 4140 } 4141 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 4142 4143 snprintf(name, sizeof(name), "InjErrNPortID"); 4144 phba->debug_InjErrNPortID = 4145 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4146 phba->hba_debugfs_root, 4147 phba, &lpfc_debugfs_op_dif_err); 4148 if (!phba->debug_InjErrNPortID) { 4149 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4150 "0809 Cannot create debugfs InjErrNPortID\n"); 4151 goto debug_failed; 4152 } 4153 4154 snprintf(name, sizeof(name), "InjErrWWPN"); 4155 phba->debug_InjErrWWPN = 4156 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4157 phba->hba_debugfs_root, 4158 phba, &lpfc_debugfs_op_dif_err); 4159 if (!phba->debug_InjErrWWPN) { 4160 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4161 "0810 Cannot create debugfs InjErrWWPN\n"); 4162 goto debug_failed; 4163 } 4164 4165 snprintf(name, sizeof(name), "writeGuardInjErr"); 4166 phba->debug_writeGuard = 4167 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4168 phba->hba_debugfs_root, 4169 phba, &lpfc_debugfs_op_dif_err); 4170 if (!phba->debug_writeGuard) { 4171 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4172 "0802 Cannot create debugfs writeGuard\n"); 4173 goto debug_failed; 4174 } 4175 4176 snprintf(name, sizeof(name), "writeAppInjErr"); 4177 phba->debug_writeApp = 4178 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4179 phba->hba_debugfs_root, 4180 phba, &lpfc_debugfs_op_dif_err); 4181 if (!phba->debug_writeApp) { 4182 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4183 "0803 Cannot create debugfs writeApp\n"); 4184 goto debug_failed; 4185 } 4186 4187 snprintf(name, sizeof(name), "writeRefInjErr"); 4188 phba->debug_writeRef = 4189 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4190 phba->hba_debugfs_root, 4191 phba, &lpfc_debugfs_op_dif_err); 4192 if (!phba->debug_writeRef) { 4193 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4194 "0804 Cannot create debugfs writeRef\n"); 4195 goto debug_failed; 4196 } 4197 4198 snprintf(name, sizeof(name), "readGuardInjErr"); 4199 phba->debug_readGuard = 4200 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4201 phba->hba_debugfs_root, 4202 phba, &lpfc_debugfs_op_dif_err); 4203 if (!phba->debug_readGuard) { 4204 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4205 "0808 Cannot create debugfs readGuard\n"); 4206 goto debug_failed; 4207 } 4208 4209 snprintf(name, sizeof(name), "readAppInjErr"); 4210 phba->debug_readApp = 4211 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4212 phba->hba_debugfs_root, 4213 phba, &lpfc_debugfs_op_dif_err); 4214 if (!phba->debug_readApp) { 4215 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4216 "0805 Cannot create debugfs readApp\n"); 4217 goto debug_failed; 4218 } 4219 4220 snprintf(name, sizeof(name), "readRefInjErr"); 4221 phba->debug_readRef = 4222 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4223 phba->hba_debugfs_root, 4224 phba, &lpfc_debugfs_op_dif_err); 4225 if (!phba->debug_readRef) { 4226 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4227 "0806 Cannot create debugfs readApp\n"); 4228 goto debug_failed; 4229 } 4230 4231 /* Setup slow ring trace */ 4232 if (lpfc_debugfs_max_slow_ring_trc) { 4233 num = lpfc_debugfs_max_slow_ring_trc - 1; 4234 if (num & lpfc_debugfs_max_slow_ring_trc) { 4235 /* Change to be a power of 2 */ 4236 num = lpfc_debugfs_max_slow_ring_trc; 4237 i = 0; 4238 while (num > 1) { 4239 num = num >> 1; 4240 i++; 4241 } 4242 lpfc_debugfs_max_slow_ring_trc = (1 << i); 4243 printk(KERN_ERR 4244 "lpfc_debugfs_max_disc_trc changed to " 4245 "%d\n", lpfc_debugfs_max_disc_trc); 4246 } 4247 } 4248 4249 snprintf(name, sizeof(name), "slow_ring_trace"); 4250 phba->debug_slow_ring_trc = 4251 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4252 phba->hba_debugfs_root, 4253 phba, &lpfc_debugfs_op_slow_ring_trc); 4254 if (!phba->debug_slow_ring_trc) { 4255 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4256 "0415 Cannot create debugfs " 4257 "slow_ring_trace\n"); 4258 goto debug_failed; 4259 } 4260 if (!phba->slow_ring_trc) { 4261 phba->slow_ring_trc = kmalloc( 4262 (sizeof(struct lpfc_debugfs_trc) * 4263 lpfc_debugfs_max_slow_ring_trc), 4264 GFP_KERNEL); 4265 if (!phba->slow_ring_trc) { 4266 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4267 "0416 Cannot create debugfs " 4268 "slow_ring buffer\n"); 4269 goto debug_failed; 4270 } 4271 atomic_set(&phba->slow_ring_trc_cnt, 0); 4272 memset(phba->slow_ring_trc, 0, 4273 (sizeof(struct lpfc_debugfs_trc) * 4274 lpfc_debugfs_max_slow_ring_trc)); 4275 } 4276 } 4277 4278 snprintf(name, sizeof(name), "vport%d", vport->vpi); 4279 if (!vport->vport_debugfs_root) { 4280 vport->vport_debugfs_root = 4281 debugfs_create_dir(name, phba->hba_debugfs_root); 4282 if (!vport->vport_debugfs_root) { 4283 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4284 "0417 Can't create debugfs\n"); 4285 goto debug_failed; 4286 } 4287 atomic_inc(&phba->debugfs_vport_count); 4288 } 4289 4290 if (lpfc_debugfs_max_disc_trc) { 4291 num = lpfc_debugfs_max_disc_trc - 1; 4292 if (num & lpfc_debugfs_max_disc_trc) { 4293 /* Change to be a power of 2 */ 4294 num = lpfc_debugfs_max_disc_trc; 4295 i = 0; 4296 while (num > 1) { 4297 num = num >> 1; 4298 i++; 4299 } 4300 lpfc_debugfs_max_disc_trc = (1 << i); 4301 printk(KERN_ERR 4302 "lpfc_debugfs_max_disc_trc changed to %d\n", 4303 lpfc_debugfs_max_disc_trc); 4304 } 4305 } 4306 4307 vport->disc_trc = kzalloc( 4308 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 4309 GFP_KERNEL); 4310 4311 if (!vport->disc_trc) { 4312 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4313 "0418 Cannot create debugfs disc trace " 4314 "buffer\n"); 4315 goto debug_failed; 4316 } 4317 atomic_set(&vport->disc_trc_cnt, 0); 4318 4319 snprintf(name, sizeof(name), "discovery_trace"); 4320 vport->debug_disc_trc = 4321 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4322 vport->vport_debugfs_root, 4323 vport, &lpfc_debugfs_op_disc_trc); 4324 if (!vport->debug_disc_trc) { 4325 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4326 "0419 Cannot create debugfs " 4327 "discovery_trace\n"); 4328 goto debug_failed; 4329 } 4330 snprintf(name, sizeof(name), "nodelist"); 4331 vport->debug_nodelist = 4332 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4333 vport->vport_debugfs_root, 4334 vport, &lpfc_debugfs_op_nodelist); 4335 if (!vport->debug_nodelist) { 4336 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4337 "2985 Can't create debugfs nodelist\n"); 4338 goto debug_failed; 4339 } 4340 4341 /* 4342 * The following section is for additional directories/files for the 4343 * physical port. 4344 */ 4345 4346 if (!pport_setup) 4347 goto debug_failed; 4348 4349 /* 4350 * iDiag debugfs root entry points for SLI4 device only 4351 */ 4352 if (phba->sli_rev < LPFC_SLI_REV4) 4353 goto debug_failed; 4354 4355 snprintf(name, sizeof(name), "iDiag"); 4356 if (!phba->idiag_root) { 4357 phba->idiag_root = 4358 debugfs_create_dir(name, phba->hba_debugfs_root); 4359 if (!phba->idiag_root) { 4360 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4361 "2922 Can't create idiag debugfs\n"); 4362 goto debug_failed; 4363 } 4364 /* Initialize iDiag data structure */ 4365 memset(&idiag, 0, sizeof(idiag)); 4366 } 4367 4368 /* iDiag read PCI config space */ 4369 snprintf(name, sizeof(name), "pciCfg"); 4370 if (!phba->idiag_pci_cfg) { 4371 phba->idiag_pci_cfg = 4372 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4373 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 4374 if (!phba->idiag_pci_cfg) { 4375 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4376 "2923 Can't create idiag debugfs\n"); 4377 goto debug_failed; 4378 } 4379 idiag.offset.last_rd = 0; 4380 } 4381 4382 /* iDiag PCI BAR access */ 4383 snprintf(name, sizeof(name), "barAcc"); 4384 if (!phba->idiag_bar_acc) { 4385 phba->idiag_bar_acc = 4386 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4387 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 4388 if (!phba->idiag_bar_acc) { 4389 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4390 "3056 Can't create idiag debugfs\n"); 4391 goto debug_failed; 4392 } 4393 idiag.offset.last_rd = 0; 4394 } 4395 4396 /* iDiag get PCI function queue information */ 4397 snprintf(name, sizeof(name), "queInfo"); 4398 if (!phba->idiag_que_info) { 4399 phba->idiag_que_info = 4400 debugfs_create_file(name, S_IFREG|S_IRUGO, 4401 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 4402 if (!phba->idiag_que_info) { 4403 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4404 "2924 Can't create idiag debugfs\n"); 4405 goto debug_failed; 4406 } 4407 } 4408 4409 /* iDiag access PCI function queue */ 4410 snprintf(name, sizeof(name), "queAcc"); 4411 if (!phba->idiag_que_acc) { 4412 phba->idiag_que_acc = 4413 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4414 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 4415 if (!phba->idiag_que_acc) { 4416 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4417 "2926 Can't create idiag debugfs\n"); 4418 goto debug_failed; 4419 } 4420 } 4421 4422 /* iDiag access PCI function doorbell registers */ 4423 snprintf(name, sizeof(name), "drbAcc"); 4424 if (!phba->idiag_drb_acc) { 4425 phba->idiag_drb_acc = 4426 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4427 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 4428 if (!phba->idiag_drb_acc) { 4429 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4430 "2927 Can't create idiag debugfs\n"); 4431 goto debug_failed; 4432 } 4433 } 4434 4435 /* iDiag access PCI function control registers */ 4436 snprintf(name, sizeof(name), "ctlAcc"); 4437 if (!phba->idiag_ctl_acc) { 4438 phba->idiag_ctl_acc = 4439 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4440 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 4441 if (!phba->idiag_ctl_acc) { 4442 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4443 "2981 Can't create idiag debugfs\n"); 4444 goto debug_failed; 4445 } 4446 } 4447 4448 /* iDiag access mbox commands */ 4449 snprintf(name, sizeof(name), "mbxAcc"); 4450 if (!phba->idiag_mbx_acc) { 4451 phba->idiag_mbx_acc = 4452 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4453 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 4454 if (!phba->idiag_mbx_acc) { 4455 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4456 "2980 Can't create idiag debugfs\n"); 4457 goto debug_failed; 4458 } 4459 } 4460 4461 /* iDiag extents access commands */ 4462 if (phba->sli4_hba.extents_in_use) { 4463 snprintf(name, sizeof(name), "extAcc"); 4464 if (!phba->idiag_ext_acc) { 4465 phba->idiag_ext_acc = 4466 debugfs_create_file(name, 4467 S_IFREG|S_IRUGO|S_IWUSR, 4468 phba->idiag_root, phba, 4469 &lpfc_idiag_op_extAcc); 4470 if (!phba->idiag_ext_acc) { 4471 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4472 "2986 Cant create " 4473 "idiag debugfs\n"); 4474 goto debug_failed; 4475 } 4476 } 4477 } 4478 4479 debug_failed: 4480 return; 4481 #endif 4482 } 4483 4484 /** 4485 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 4486 * @vport: The vport pointer to remove from debugfs. 4487 * 4488 * Description: 4489 * When Debugfs is configured this routine removes debugfs file system elements 4490 * that are specific to this vport. It also checks to see if there are any 4491 * users left for the debugfs directories associated with the HBA and driver. If 4492 * this is the last user of the HBA directory or driver directory then it will 4493 * remove those from the debugfs infrastructure as well. 4494 **/ 4495 inline void 4496 lpfc_debugfs_terminate(struct lpfc_vport *vport) 4497 { 4498 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4499 struct lpfc_hba *phba = vport->phba; 4500 4501 if (vport->disc_trc) { 4502 kfree(vport->disc_trc); 4503 vport->disc_trc = NULL; 4504 } 4505 if (vport->debug_disc_trc) { 4506 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 4507 vport->debug_disc_trc = NULL; 4508 } 4509 if (vport->debug_nodelist) { 4510 debugfs_remove(vport->debug_nodelist); /* nodelist */ 4511 vport->debug_nodelist = NULL; 4512 } 4513 if (vport->vport_debugfs_root) { 4514 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 4515 vport->vport_debugfs_root = NULL; 4516 atomic_dec(&phba->debugfs_vport_count); 4517 } 4518 if (atomic_read(&phba->debugfs_vport_count) == 0) { 4519 4520 if (phba->debug_hbqinfo) { 4521 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 4522 phba->debug_hbqinfo = NULL; 4523 } 4524 if (phba->debug_dumpHBASlim) { 4525 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 4526 phba->debug_dumpHBASlim = NULL; 4527 } 4528 if (phba->debug_dumpHostSlim) { 4529 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 4530 phba->debug_dumpHostSlim = NULL; 4531 } 4532 if (phba->debug_dumpData) { 4533 debugfs_remove(phba->debug_dumpData); /* dumpData */ 4534 phba->debug_dumpData = NULL; 4535 } 4536 4537 if (phba->debug_dumpDif) { 4538 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 4539 phba->debug_dumpDif = NULL; 4540 } 4541 if (phba->debug_InjErrLBA) { 4542 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 4543 phba->debug_InjErrLBA = NULL; 4544 } 4545 if (phba->debug_InjErrNPortID) { /* InjErrNPortID */ 4546 debugfs_remove(phba->debug_InjErrNPortID); 4547 phba->debug_InjErrNPortID = NULL; 4548 } 4549 if (phba->debug_InjErrWWPN) { 4550 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 4551 phba->debug_InjErrWWPN = NULL; 4552 } 4553 if (phba->debug_writeGuard) { 4554 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 4555 phba->debug_writeGuard = NULL; 4556 } 4557 if (phba->debug_writeApp) { 4558 debugfs_remove(phba->debug_writeApp); /* writeApp */ 4559 phba->debug_writeApp = NULL; 4560 } 4561 if (phba->debug_writeRef) { 4562 debugfs_remove(phba->debug_writeRef); /* writeRef */ 4563 phba->debug_writeRef = NULL; 4564 } 4565 if (phba->debug_readGuard) { 4566 debugfs_remove(phba->debug_readGuard); /* readGuard */ 4567 phba->debug_readGuard = NULL; 4568 } 4569 if (phba->debug_readApp) { 4570 debugfs_remove(phba->debug_readApp); /* readApp */ 4571 phba->debug_readApp = NULL; 4572 } 4573 if (phba->debug_readRef) { 4574 debugfs_remove(phba->debug_readRef); /* readRef */ 4575 phba->debug_readRef = NULL; 4576 } 4577 4578 if (phba->slow_ring_trc) { 4579 kfree(phba->slow_ring_trc); 4580 phba->slow_ring_trc = NULL; 4581 } 4582 if (phba->debug_slow_ring_trc) { 4583 /* slow_ring_trace */ 4584 debugfs_remove(phba->debug_slow_ring_trc); 4585 phba->debug_slow_ring_trc = NULL; 4586 } 4587 4588 /* 4589 * iDiag release 4590 */ 4591 if (phba->sli_rev == LPFC_SLI_REV4) { 4592 if (phba->idiag_ext_acc) { 4593 /* iDiag extAcc */ 4594 debugfs_remove(phba->idiag_ext_acc); 4595 phba->idiag_ext_acc = NULL; 4596 } 4597 if (phba->idiag_mbx_acc) { 4598 /* iDiag mbxAcc */ 4599 debugfs_remove(phba->idiag_mbx_acc); 4600 phba->idiag_mbx_acc = NULL; 4601 } 4602 if (phba->idiag_ctl_acc) { 4603 /* iDiag ctlAcc */ 4604 debugfs_remove(phba->idiag_ctl_acc); 4605 phba->idiag_ctl_acc = NULL; 4606 } 4607 if (phba->idiag_drb_acc) { 4608 /* iDiag drbAcc */ 4609 debugfs_remove(phba->idiag_drb_acc); 4610 phba->idiag_drb_acc = NULL; 4611 } 4612 if (phba->idiag_que_acc) { 4613 /* iDiag queAcc */ 4614 debugfs_remove(phba->idiag_que_acc); 4615 phba->idiag_que_acc = NULL; 4616 } 4617 if (phba->idiag_que_info) { 4618 /* iDiag queInfo */ 4619 debugfs_remove(phba->idiag_que_info); 4620 phba->idiag_que_info = NULL; 4621 } 4622 if (phba->idiag_bar_acc) { 4623 /* iDiag barAcc */ 4624 debugfs_remove(phba->idiag_bar_acc); 4625 phba->idiag_bar_acc = NULL; 4626 } 4627 if (phba->idiag_pci_cfg) { 4628 /* iDiag pciCfg */ 4629 debugfs_remove(phba->idiag_pci_cfg); 4630 phba->idiag_pci_cfg = NULL; 4631 } 4632 4633 /* Finally remove the iDiag debugfs root */ 4634 if (phba->idiag_root) { 4635 /* iDiag root */ 4636 debugfs_remove(phba->idiag_root); 4637 phba->idiag_root = NULL; 4638 } 4639 } 4640 4641 if (phba->hba_debugfs_root) { 4642 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 4643 phba->hba_debugfs_root = NULL; 4644 atomic_dec(&lpfc_debugfs_hba_count); 4645 } 4646 4647 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 4648 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 4649 lpfc_debugfs_root = NULL; 4650 } 4651 } 4652 #endif 4653 return; 4654 } 4655 4656 /* 4657 * Driver debug utility routines outside of debugfs. The debug utility 4658 * routines implemented here is intended to be used in the instrumented 4659 * debug driver for debugging host or port issues. 4660 */ 4661 4662 /** 4663 * lpfc_debug_dump_all_queues - dump all the queues with a hba 4664 * @phba: Pointer to HBA context object. 4665 * 4666 * This function dumps entries of all the queues asociated with the @phba. 4667 **/ 4668 void 4669 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 4670 { 4671 int fcp_wqidx; 4672 4673 /* 4674 * Dump Work Queues (WQs) 4675 */ 4676 lpfc_debug_dump_mbx_wq(phba); 4677 lpfc_debug_dump_els_wq(phba); 4678 4679 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) 4680 lpfc_debug_dump_fcp_wq(phba, fcp_wqidx); 4681 4682 lpfc_debug_dump_hdr_rq(phba); 4683 lpfc_debug_dump_dat_rq(phba); 4684 /* 4685 * Dump Complete Queues (CQs) 4686 */ 4687 lpfc_debug_dump_mbx_cq(phba); 4688 lpfc_debug_dump_els_cq(phba); 4689 4690 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) 4691 lpfc_debug_dump_fcp_cq(phba, fcp_wqidx); 4692 4693 /* 4694 * Dump Event Queues (EQs) 4695 */ 4696 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) 4697 lpfc_debug_dump_hba_eq(phba, fcp_wqidx); 4698 } 4699