1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2007-2011 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/dma-mapping.h> 24 #include <linux/idr.h> 25 #include <linux/interrupt.h> 26 #include <linux/kthread.h> 27 #include <linux/slab.h> 28 #include <linux/pci.h> 29 #include <linux/spinlock.h> 30 #include <linux/ctype.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 37 #include "lpfc_hw4.h" 38 #include "lpfc_hw.h" 39 #include "lpfc_sli.h" 40 #include "lpfc_sli4.h" 41 #include "lpfc_nl.h" 42 #include "lpfc_disc.h" 43 #include "lpfc_scsi.h" 44 #include "lpfc.h" 45 #include "lpfc_logmsg.h" 46 #include "lpfc_crtn.h" 47 #include "lpfc_vport.h" 48 #include "lpfc_version.h" 49 #include "lpfc_compat.h" 50 #include "lpfc_debugfs.h" 51 #include "lpfc_bsg.h" 52 53 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 54 /* 55 * debugfs interface 56 * 57 * To access this interface the user should: 58 * # mount -t debugfs none /sys/kernel/debug 59 * 60 * The lpfc debugfs directory hierarchy is: 61 * /sys/kernel/debug/lpfc/fnX/vportY 62 * where X is the lpfc hba function unique_id 63 * where Y is the vport VPI on that hba 64 * 65 * Debugging services available per vport: 66 * discovery_trace 67 * This is an ACSII readable file that contains a trace of the last 68 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 69 * See lpfc_debugfs.h for different categories of discovery events. 70 * To enable the discovery trace, the following module parameters must be set: 71 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 72 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 73 * EACH vport. X MUST also be a power of 2. 74 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 75 * lpfc_debugfs.h . 76 * 77 * slow_ring_trace 78 * This is an ACSII readable file that contains a trace of the last 79 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 80 * To enable the slow ring trace, the following module parameters must be set: 81 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 82 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 83 * the HBA. X MUST also be a power of 2. 84 */ 85 static int lpfc_debugfs_enable = 1; 86 module_param(lpfc_debugfs_enable, int, S_IRUGO); 87 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 88 89 /* This MUST be a power of 2 */ 90 static int lpfc_debugfs_max_disc_trc; 91 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 92 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 93 "Set debugfs discovery trace depth"); 94 95 /* This MUST be a power of 2 */ 96 static int lpfc_debugfs_max_slow_ring_trc; 97 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 98 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 99 "Set debugfs slow ring trace depth"); 100 101 static int lpfc_debugfs_mask_disc_trc; 102 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 103 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 104 "Set debugfs discovery trace mask"); 105 106 #include <linux/debugfs.h> 107 108 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 109 static unsigned long lpfc_debugfs_start_time = 0L; 110 111 /* iDiag */ 112 static struct lpfc_idiag idiag; 113 114 /** 115 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 116 * @vport: The vport to gather the log info from. 117 * @buf: The buffer to dump log into. 118 * @size: The maximum amount of data to process. 119 * 120 * Description: 121 * This routine gathers the lpfc discovery debugfs data from the @vport and 122 * dumps it to @buf up to @size number of bytes. It will start at the next entry 123 * in the log and process the log until the end of the buffer. Then it will 124 * gather from the beginning of the log and process until the current entry. 125 * 126 * Notes: 127 * Discovery logging will be disabled while while this routine dumps the log. 128 * 129 * Return Value: 130 * This routine returns the amount of bytes that were dumped into @buf and will 131 * not exceed @size. 132 **/ 133 static int 134 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 135 { 136 int i, index, len, enable; 137 uint32_t ms; 138 struct lpfc_debugfs_trc *dtp; 139 char *buffer; 140 141 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 142 if (!buffer) 143 return 0; 144 145 enable = lpfc_debugfs_enable; 146 lpfc_debugfs_enable = 0; 147 148 len = 0; 149 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 150 (lpfc_debugfs_max_disc_trc - 1); 151 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 152 dtp = vport->disc_trc + i; 153 if (!dtp->fmt) 154 continue; 155 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 156 snprintf(buffer, 157 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 158 dtp->seq_cnt, ms, dtp->fmt); 159 len += snprintf(buf+len, size-len, buffer, 160 dtp->data1, dtp->data2, dtp->data3); 161 } 162 for (i = 0; i < index; i++) { 163 dtp = vport->disc_trc + i; 164 if (!dtp->fmt) 165 continue; 166 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 167 snprintf(buffer, 168 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 169 dtp->seq_cnt, ms, dtp->fmt); 170 len += snprintf(buf+len, size-len, buffer, 171 dtp->data1, dtp->data2, dtp->data3); 172 } 173 174 lpfc_debugfs_enable = enable; 175 kfree(buffer); 176 177 return len; 178 } 179 180 /** 181 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 182 * @phba: The HBA to gather the log info from. 183 * @buf: The buffer to dump log into. 184 * @size: The maximum amount of data to process. 185 * 186 * Description: 187 * This routine gathers the lpfc slow ring debugfs data from the @phba and 188 * dumps it to @buf up to @size number of bytes. It will start at the next entry 189 * in the log and process the log until the end of the buffer. Then it will 190 * gather from the beginning of the log and process until the current entry. 191 * 192 * Notes: 193 * Slow ring logging will be disabled while while this routine dumps the log. 194 * 195 * Return Value: 196 * This routine returns the amount of bytes that were dumped into @buf and will 197 * not exceed @size. 198 **/ 199 static int 200 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 201 { 202 int i, index, len, enable; 203 uint32_t ms; 204 struct lpfc_debugfs_trc *dtp; 205 char *buffer; 206 207 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 208 if (!buffer) 209 return 0; 210 211 enable = lpfc_debugfs_enable; 212 lpfc_debugfs_enable = 0; 213 214 len = 0; 215 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 216 (lpfc_debugfs_max_slow_ring_trc - 1); 217 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 218 dtp = phba->slow_ring_trc + i; 219 if (!dtp->fmt) 220 continue; 221 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 222 snprintf(buffer, 223 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 224 dtp->seq_cnt, ms, dtp->fmt); 225 len += snprintf(buf+len, size-len, buffer, 226 dtp->data1, dtp->data2, dtp->data3); 227 } 228 for (i = 0; i < index; i++) { 229 dtp = phba->slow_ring_trc + i; 230 if (!dtp->fmt) 231 continue; 232 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 233 snprintf(buffer, 234 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 235 dtp->seq_cnt, ms, dtp->fmt); 236 len += snprintf(buf+len, size-len, buffer, 237 dtp->data1, dtp->data2, dtp->data3); 238 } 239 240 lpfc_debugfs_enable = enable; 241 kfree(buffer); 242 243 return len; 244 } 245 246 static int lpfc_debugfs_last_hbq = -1; 247 248 /** 249 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 250 * @phba: The HBA to gather host buffer info from. 251 * @buf: The buffer to dump log into. 252 * @size: The maximum amount of data to process. 253 * 254 * Description: 255 * This routine dumps the host buffer queue info from the @phba to @buf up to 256 * @size number of bytes. A header that describes the current hbq state will be 257 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 258 * until @size bytes have been dumped or all the hbq info has been dumped. 259 * 260 * Notes: 261 * This routine will rotate through each configured HBQ each time called. 262 * 263 * Return Value: 264 * This routine returns the amount of bytes that were dumped into @buf and will 265 * not exceed @size. 266 **/ 267 static int 268 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 269 { 270 int len = 0; 271 int cnt, i, j, found, posted, low; 272 uint32_t phys, raw_index, getidx; 273 struct lpfc_hbq_init *hip; 274 struct hbq_s *hbqs; 275 struct lpfc_hbq_entry *hbqe; 276 struct lpfc_dmabuf *d_buf; 277 struct hbq_dmabuf *hbq_buf; 278 279 if (phba->sli_rev != 3) 280 return 0; 281 cnt = LPFC_HBQINFO_SIZE; 282 spin_lock_irq(&phba->hbalock); 283 284 /* toggle between multiple hbqs, if any */ 285 i = lpfc_sli_hbq_count(); 286 if (i > 1) { 287 lpfc_debugfs_last_hbq++; 288 if (lpfc_debugfs_last_hbq >= i) 289 lpfc_debugfs_last_hbq = 0; 290 } 291 else 292 lpfc_debugfs_last_hbq = 0; 293 294 i = lpfc_debugfs_last_hbq; 295 296 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); 297 298 hbqs = &phba->hbqs[i]; 299 posted = 0; 300 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 301 posted++; 302 303 hip = lpfc_hbq_defs[i]; 304 len += snprintf(buf+len, size-len, 305 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 306 hip->hbq_index, hip->profile, hip->rn, 307 hip->buffer_count, hip->init_count, hip->add_count, posted); 308 309 raw_index = phba->hbq_get[i]; 310 getidx = le32_to_cpu(raw_index); 311 len += snprintf(buf+len, size-len, 312 "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 313 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 314 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 315 316 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 317 for (j=0; j<hbqs->entry_count; j++) { 318 len += snprintf(buf+len, size-len, 319 "%03d: %08x %04x %05x ", j, 320 le32_to_cpu(hbqe->bde.addrLow), 321 le32_to_cpu(hbqe->bde.tus.w), 322 le32_to_cpu(hbqe->buffer_tag)); 323 i = 0; 324 found = 0; 325 326 /* First calculate if slot has an associated posted buffer */ 327 low = hbqs->hbqPutIdx - posted; 328 if (low >= 0) { 329 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 330 len += snprintf(buf+len, size-len, "Unused\n"); 331 goto skipit; 332 } 333 } 334 else { 335 if ((j >= hbqs->hbqPutIdx) && 336 (j < (hbqs->entry_count+low))) { 337 len += snprintf(buf+len, size-len, "Unused\n"); 338 goto skipit; 339 } 340 } 341 342 /* Get the Buffer info for the posted buffer */ 343 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 344 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 345 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 346 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 347 len += snprintf(buf+len, size-len, 348 "Buf%d: %p %06x\n", i, 349 hbq_buf->dbuf.virt, hbq_buf->tag); 350 found = 1; 351 break; 352 } 353 i++; 354 } 355 if (!found) { 356 len += snprintf(buf+len, size-len, "No DMAinfo?\n"); 357 } 358 skipit: 359 hbqe++; 360 if (len > LPFC_HBQINFO_SIZE - 54) 361 break; 362 } 363 spin_unlock_irq(&phba->hbalock); 364 return len; 365 } 366 367 static int lpfc_debugfs_last_hba_slim_off; 368 369 /** 370 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 371 * @phba: The HBA to gather SLIM info from. 372 * @buf: The buffer to dump log into. 373 * @size: The maximum amount of data to process. 374 * 375 * Description: 376 * This routine dumps the current contents of HBA SLIM for the HBA associated 377 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 378 * 379 * Notes: 380 * This routine will only dump up to 1024 bytes of data each time called and 381 * should be called multiple times to dump the entire HBA SLIM. 382 * 383 * Return Value: 384 * This routine returns the amount of bytes that were dumped into @buf and will 385 * not exceed @size. 386 **/ 387 static int 388 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 389 { 390 int len = 0; 391 int i, off; 392 uint32_t *ptr; 393 char *buffer; 394 395 buffer = kmalloc(1024, GFP_KERNEL); 396 if (!buffer) 397 return 0; 398 399 off = 0; 400 spin_lock_irq(&phba->hbalock); 401 402 len += snprintf(buf+len, size-len, "HBA SLIM\n"); 403 lpfc_memcpy_from_slim(buffer, 404 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 405 406 ptr = (uint32_t *)&buffer[0]; 407 off = lpfc_debugfs_last_hba_slim_off; 408 409 /* Set it up for the next time */ 410 lpfc_debugfs_last_hba_slim_off += 1024; 411 if (lpfc_debugfs_last_hba_slim_off >= 4096) 412 lpfc_debugfs_last_hba_slim_off = 0; 413 414 i = 1024; 415 while (i > 0) { 416 len += snprintf(buf+len, size-len, 417 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 418 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 419 *(ptr+5), *(ptr+6), *(ptr+7)); 420 ptr += 8; 421 i -= (8 * sizeof(uint32_t)); 422 off += (8 * sizeof(uint32_t)); 423 } 424 425 spin_unlock_irq(&phba->hbalock); 426 kfree(buffer); 427 428 return len; 429 } 430 431 /** 432 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 433 * @phba: The HBA to gather Host SLIM info from. 434 * @buf: The buffer to dump log into. 435 * @size: The maximum amount of data to process. 436 * 437 * Description: 438 * This routine dumps the current contents of host SLIM for the host associated 439 * with @phba to @buf up to @size bytes of data. The dump will contain the 440 * Mailbox, PCB, Rings, and Registers that are located in host memory. 441 * 442 * Return Value: 443 * This routine returns the amount of bytes that were dumped into @buf and will 444 * not exceed @size. 445 **/ 446 static int 447 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 448 { 449 int len = 0; 450 int i, off; 451 uint32_t word0, word1, word2, word3; 452 uint32_t *ptr; 453 struct lpfc_pgp *pgpp; 454 struct lpfc_sli *psli = &phba->sli; 455 struct lpfc_sli_ring *pring; 456 457 off = 0; 458 spin_lock_irq(&phba->hbalock); 459 460 len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); 461 ptr = (uint32_t *)phba->slim2p.virt; 462 i = sizeof(MAILBOX_t); 463 while (i > 0) { 464 len += snprintf(buf+len, size-len, 465 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 466 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 467 *(ptr+5), *(ptr+6), *(ptr+7)); 468 ptr += 8; 469 i -= (8 * sizeof(uint32_t)); 470 off += (8 * sizeof(uint32_t)); 471 } 472 473 len += snprintf(buf+len, size-len, "SLIM PCB\n"); 474 ptr = (uint32_t *)phba->pcb; 475 i = sizeof(PCB_t); 476 while (i > 0) { 477 len += snprintf(buf+len, size-len, 478 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 479 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 480 *(ptr+5), *(ptr+6), *(ptr+7)); 481 ptr += 8; 482 i -= (8 * sizeof(uint32_t)); 483 off += (8 * sizeof(uint32_t)); 484 } 485 486 for (i = 0; i < 4; i++) { 487 pgpp = &phba->port_gp[i]; 488 pring = &psli->ring[i]; 489 len += snprintf(buf+len, size-len, 490 "Ring %d: CMD GetInx:%d (Max:%d Next:%d " 491 "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n", 492 i, pgpp->cmdGetInx, pring->numCiocb, 493 pring->next_cmdidx, pring->local_getidx, 494 pring->flag, pgpp->rspPutInx, pring->numRiocb); 495 } 496 497 if (phba->sli_rev <= LPFC_SLI_REV3) { 498 word0 = readl(phba->HAregaddr); 499 word1 = readl(phba->CAregaddr); 500 word2 = readl(phba->HSregaddr); 501 word3 = readl(phba->HCregaddr); 502 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 503 "HC:%08x\n", word0, word1, word2, word3); 504 } 505 spin_unlock_irq(&phba->hbalock); 506 return len; 507 } 508 509 /** 510 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 511 * @vport: The vport to gather target node info from. 512 * @buf: The buffer to dump log into. 513 * @size: The maximum amount of data to process. 514 * 515 * Description: 516 * This routine dumps the current target node list associated with @vport to 517 * @buf up to @size bytes of data. Each node entry in the dump will contain a 518 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 519 * 520 * Return Value: 521 * This routine returns the amount of bytes that were dumped into @buf and will 522 * not exceed @size. 523 **/ 524 static int 525 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 526 { 527 int len = 0; 528 int cnt; 529 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 530 struct lpfc_nodelist *ndlp; 531 unsigned char *statep, *name; 532 533 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 534 535 spin_lock_irq(shost->host_lock); 536 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 537 if (!cnt) { 538 len += snprintf(buf+len, size-len, 539 "Missing Nodelist Entries\n"); 540 break; 541 } 542 cnt--; 543 switch (ndlp->nlp_state) { 544 case NLP_STE_UNUSED_NODE: 545 statep = "UNUSED"; 546 break; 547 case NLP_STE_PLOGI_ISSUE: 548 statep = "PLOGI "; 549 break; 550 case NLP_STE_ADISC_ISSUE: 551 statep = "ADISC "; 552 break; 553 case NLP_STE_REG_LOGIN_ISSUE: 554 statep = "REGLOG"; 555 break; 556 case NLP_STE_PRLI_ISSUE: 557 statep = "PRLI "; 558 break; 559 case NLP_STE_UNMAPPED_NODE: 560 statep = "UNMAP "; 561 break; 562 case NLP_STE_MAPPED_NODE: 563 statep = "MAPPED"; 564 break; 565 case NLP_STE_NPR_NODE: 566 statep = "NPR "; 567 break; 568 default: 569 statep = "UNKNOWN"; 570 } 571 len += snprintf(buf+len, size-len, "%s DID:x%06x ", 572 statep, ndlp->nlp_DID); 573 name = (unsigned char *)&ndlp->nlp_portname; 574 len += snprintf(buf+len, size-len, 575 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", 576 *name, *(name+1), *(name+2), *(name+3), 577 *(name+4), *(name+5), *(name+6), *(name+7)); 578 name = (unsigned char *)&ndlp->nlp_nodename; 579 len += snprintf(buf+len, size-len, 580 "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", 581 *name, *(name+1), *(name+2), *(name+3), 582 *(name+4), *(name+5), *(name+6), *(name+7)); 583 len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ", 584 ndlp->nlp_rpi, ndlp->nlp_flag); 585 if (!ndlp->nlp_type) 586 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); 587 if (ndlp->nlp_type & NLP_FC_NODE) 588 len += snprintf(buf+len, size-len, "FC_NODE "); 589 if (ndlp->nlp_type & NLP_FABRIC) 590 len += snprintf(buf+len, size-len, "FABRIC "); 591 if (ndlp->nlp_type & NLP_FCP_TARGET) 592 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", 593 ndlp->nlp_sid); 594 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 595 len += snprintf(buf+len, size-len, "FCP_INITIATOR "); 596 len += snprintf(buf+len, size-len, "usgmap:%x ", 597 ndlp->nlp_usg_map); 598 len += snprintf(buf+len, size-len, "refcnt:%x", 599 atomic_read(&ndlp->kref.refcount)); 600 len += snprintf(buf+len, size-len, "\n"); 601 } 602 spin_unlock_irq(shost->host_lock); 603 return len; 604 } 605 #endif 606 607 /** 608 * lpfc_debugfs_disc_trc - Store discovery trace log 609 * @vport: The vport to associate this trace string with for retrieval. 610 * @mask: Log entry classification. 611 * @fmt: Format string to be displayed when dumping the log. 612 * @data1: 1st data parameter to be applied to @fmt. 613 * @data2: 2nd data parameter to be applied to @fmt. 614 * @data3: 3rd data parameter to be applied to @fmt. 615 * 616 * Description: 617 * This routine is used by the driver code to add a debugfs log entry to the 618 * discovery trace buffer associated with @vport. Only entries with a @mask that 619 * match the current debugfs discovery mask will be saved. Entries that do not 620 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 621 * printf when displaying the log. 622 **/ 623 inline void 624 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 625 uint32_t data1, uint32_t data2, uint32_t data3) 626 { 627 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 628 struct lpfc_debugfs_trc *dtp; 629 int index; 630 631 if (!(lpfc_debugfs_mask_disc_trc & mask)) 632 return; 633 634 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 635 !vport || !vport->disc_trc) 636 return; 637 638 index = atomic_inc_return(&vport->disc_trc_cnt) & 639 (lpfc_debugfs_max_disc_trc - 1); 640 dtp = vport->disc_trc + index; 641 dtp->fmt = fmt; 642 dtp->data1 = data1; 643 dtp->data2 = data2; 644 dtp->data3 = data3; 645 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 646 dtp->jif = jiffies; 647 #endif 648 return; 649 } 650 651 /** 652 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 653 * @phba: The phba to associate this trace string with for retrieval. 654 * @fmt: Format string to be displayed when dumping the log. 655 * @data1: 1st data parameter to be applied to @fmt. 656 * @data2: 2nd data parameter to be applied to @fmt. 657 * @data3: 3rd data parameter to be applied to @fmt. 658 * 659 * Description: 660 * This routine is used by the driver code to add a debugfs log entry to the 661 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 662 * @data3 are used like printf when displaying the log. 663 **/ 664 inline void 665 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 666 uint32_t data1, uint32_t data2, uint32_t data3) 667 { 668 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 669 struct lpfc_debugfs_trc *dtp; 670 int index; 671 672 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 673 !phba || !phba->slow_ring_trc) 674 return; 675 676 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 677 (lpfc_debugfs_max_slow_ring_trc - 1); 678 dtp = phba->slow_ring_trc + index; 679 dtp->fmt = fmt; 680 dtp->data1 = data1; 681 dtp->data2 = data2; 682 dtp->data3 = data3; 683 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 684 dtp->jif = jiffies; 685 #endif 686 return; 687 } 688 689 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 690 /** 691 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 692 * @inode: The inode pointer that contains a vport pointer. 693 * @file: The file pointer to attach the log output. 694 * 695 * Description: 696 * This routine is the entry point for the debugfs open file operation. It gets 697 * the vport from the i_private field in @inode, allocates the necessary buffer 698 * for the log, fills the buffer from the in-memory log for this vport, and then 699 * returns a pointer to that log in the private_data field in @file. 700 * 701 * Returns: 702 * This function returns zero if successful. On error it will return an negative 703 * error value. 704 **/ 705 static int 706 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 707 { 708 struct lpfc_vport *vport = inode->i_private; 709 struct lpfc_debug *debug; 710 int size; 711 int rc = -ENOMEM; 712 713 if (!lpfc_debugfs_max_disc_trc) { 714 rc = -ENOSPC; 715 goto out; 716 } 717 718 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 719 if (!debug) 720 goto out; 721 722 /* Round to page boundary */ 723 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 724 size = PAGE_ALIGN(size); 725 726 debug->buffer = kmalloc(size, GFP_KERNEL); 727 if (!debug->buffer) { 728 kfree(debug); 729 goto out; 730 } 731 732 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 733 file->private_data = debug; 734 735 rc = 0; 736 out: 737 return rc; 738 } 739 740 /** 741 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 742 * @inode: The inode pointer that contains a vport pointer. 743 * @file: The file pointer to attach the log output. 744 * 745 * Description: 746 * This routine is the entry point for the debugfs open file operation. It gets 747 * the vport from the i_private field in @inode, allocates the necessary buffer 748 * for the log, fills the buffer from the in-memory log for this vport, and then 749 * returns a pointer to that log in the private_data field in @file. 750 * 751 * Returns: 752 * This function returns zero if successful. On error it will return an negative 753 * error value. 754 **/ 755 static int 756 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 757 { 758 struct lpfc_hba *phba = inode->i_private; 759 struct lpfc_debug *debug; 760 int size; 761 int rc = -ENOMEM; 762 763 if (!lpfc_debugfs_max_slow_ring_trc) { 764 rc = -ENOSPC; 765 goto out; 766 } 767 768 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 769 if (!debug) 770 goto out; 771 772 /* Round to page boundary */ 773 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 774 size = PAGE_ALIGN(size); 775 776 debug->buffer = kmalloc(size, GFP_KERNEL); 777 if (!debug->buffer) { 778 kfree(debug); 779 goto out; 780 } 781 782 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 783 file->private_data = debug; 784 785 rc = 0; 786 out: 787 return rc; 788 } 789 790 /** 791 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 792 * @inode: The inode pointer that contains a vport pointer. 793 * @file: The file pointer to attach the log output. 794 * 795 * Description: 796 * This routine is the entry point for the debugfs open file operation. It gets 797 * the vport from the i_private field in @inode, allocates the necessary buffer 798 * for the log, fills the buffer from the in-memory log for this vport, and then 799 * returns a pointer to that log in the private_data field in @file. 800 * 801 * Returns: 802 * This function returns zero if successful. On error it will return an negative 803 * error value. 804 **/ 805 static int 806 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 807 { 808 struct lpfc_hba *phba = inode->i_private; 809 struct lpfc_debug *debug; 810 int rc = -ENOMEM; 811 812 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 813 if (!debug) 814 goto out; 815 816 /* Round to page boundary */ 817 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 818 if (!debug->buffer) { 819 kfree(debug); 820 goto out; 821 } 822 823 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 824 LPFC_HBQINFO_SIZE); 825 file->private_data = debug; 826 827 rc = 0; 828 out: 829 return rc; 830 } 831 832 /** 833 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 834 * @inode: The inode pointer that contains a vport pointer. 835 * @file: The file pointer to attach the log output. 836 * 837 * Description: 838 * This routine is the entry point for the debugfs open file operation. It gets 839 * the vport from the i_private field in @inode, allocates the necessary buffer 840 * for the log, fills the buffer from the in-memory log for this vport, and then 841 * returns a pointer to that log in the private_data field in @file. 842 * 843 * Returns: 844 * This function returns zero if successful. On error it will return an negative 845 * error value. 846 **/ 847 static int 848 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 849 { 850 struct lpfc_hba *phba = inode->i_private; 851 struct lpfc_debug *debug; 852 int rc = -ENOMEM; 853 854 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 855 if (!debug) 856 goto out; 857 858 /* Round to page boundary */ 859 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 860 if (!debug->buffer) { 861 kfree(debug); 862 goto out; 863 } 864 865 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 866 LPFC_DUMPHBASLIM_SIZE); 867 file->private_data = debug; 868 869 rc = 0; 870 out: 871 return rc; 872 } 873 874 /** 875 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 876 * @inode: The inode pointer that contains a vport pointer. 877 * @file: The file pointer to attach the log output. 878 * 879 * Description: 880 * This routine is the entry point for the debugfs open file operation. It gets 881 * the vport from the i_private field in @inode, allocates the necessary buffer 882 * for the log, fills the buffer from the in-memory log for this vport, and then 883 * returns a pointer to that log in the private_data field in @file. 884 * 885 * Returns: 886 * This function returns zero if successful. On error it will return an negative 887 * error value. 888 **/ 889 static int 890 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 891 { 892 struct lpfc_hba *phba = inode->i_private; 893 struct lpfc_debug *debug; 894 int rc = -ENOMEM; 895 896 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 897 if (!debug) 898 goto out; 899 900 /* Round to page boundary */ 901 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 902 if (!debug->buffer) { 903 kfree(debug); 904 goto out; 905 } 906 907 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 908 LPFC_DUMPHOSTSLIM_SIZE); 909 file->private_data = debug; 910 911 rc = 0; 912 out: 913 return rc; 914 } 915 916 static int 917 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) 918 { 919 struct lpfc_debug *debug; 920 int rc = -ENOMEM; 921 922 if (!_dump_buf_data) 923 return -EBUSY; 924 925 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 926 if (!debug) 927 goto out; 928 929 /* Round to page boundary */ 930 printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n", 931 __func__, _dump_buf_data); 932 debug->buffer = _dump_buf_data; 933 if (!debug->buffer) { 934 kfree(debug); 935 goto out; 936 } 937 938 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; 939 file->private_data = debug; 940 941 rc = 0; 942 out: 943 return rc; 944 } 945 946 static int 947 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) 948 { 949 struct lpfc_debug *debug; 950 int rc = -ENOMEM; 951 952 if (!_dump_buf_dif) 953 return -EBUSY; 954 955 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 956 if (!debug) 957 goto out; 958 959 /* Round to page boundary */ 960 printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n", 961 __func__, _dump_buf_dif, file->f_dentry->d_name.name); 962 debug->buffer = _dump_buf_dif; 963 if (!debug->buffer) { 964 kfree(debug); 965 goto out; 966 } 967 968 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; 969 file->private_data = debug; 970 971 rc = 0; 972 out: 973 return rc; 974 } 975 976 static ssize_t 977 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, 978 size_t nbytes, loff_t *ppos) 979 { 980 /* 981 * The Data/DIF buffers only save one failing IO 982 * The write op is used as a reset mechanism after an IO has 983 * already been saved to the next one can be saved 984 */ 985 spin_lock(&_dump_buf_lock); 986 987 memset((void *)_dump_buf_data, 0, 988 ((1 << PAGE_SHIFT) << _dump_buf_data_order)); 989 memset((void *)_dump_buf_dif, 0, 990 ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); 991 992 _dump_buf_done = 0; 993 994 spin_unlock(&_dump_buf_lock); 995 996 return nbytes; 997 } 998 999 /** 1000 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 1001 * @inode: The inode pointer that contains a vport pointer. 1002 * @file: The file pointer to attach the log output. 1003 * 1004 * Description: 1005 * This routine is the entry point for the debugfs open file operation. It gets 1006 * the vport from the i_private field in @inode, allocates the necessary buffer 1007 * for the log, fills the buffer from the in-memory log for this vport, and then 1008 * returns a pointer to that log in the private_data field in @file. 1009 * 1010 * Returns: 1011 * This function returns zero if successful. On error it will return an negative 1012 * error value. 1013 **/ 1014 static int 1015 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 1016 { 1017 struct lpfc_vport *vport = inode->i_private; 1018 struct lpfc_debug *debug; 1019 int rc = -ENOMEM; 1020 1021 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1022 if (!debug) 1023 goto out; 1024 1025 /* Round to page boundary */ 1026 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 1027 if (!debug->buffer) { 1028 kfree(debug); 1029 goto out; 1030 } 1031 1032 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 1033 LPFC_NODELIST_SIZE); 1034 file->private_data = debug; 1035 1036 rc = 0; 1037 out: 1038 return rc; 1039 } 1040 1041 /** 1042 * lpfc_debugfs_lseek - Seek through a debugfs file 1043 * @file: The file pointer to seek through. 1044 * @off: The offset to seek to or the amount to seek by. 1045 * @whence: Indicates how to seek. 1046 * 1047 * Description: 1048 * This routine is the entry point for the debugfs lseek file operation. The 1049 * @whence parameter indicates whether @off is the offset to directly seek to, 1050 * or if it is a value to seek forward or reverse by. This function figures out 1051 * what the new offset of the debugfs file will be and assigns that value to the 1052 * f_pos field of @file. 1053 * 1054 * Returns: 1055 * This function returns the new offset if successful and returns a negative 1056 * error if unable to process the seek. 1057 **/ 1058 static loff_t 1059 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 1060 { 1061 struct lpfc_debug *debug; 1062 loff_t pos = -1; 1063 1064 debug = file->private_data; 1065 1066 switch (whence) { 1067 case 0: 1068 pos = off; 1069 break; 1070 case 1: 1071 pos = file->f_pos + off; 1072 break; 1073 case 2: 1074 pos = debug->len - off; 1075 } 1076 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); 1077 } 1078 1079 /** 1080 * lpfc_debugfs_read - Read a debugfs file 1081 * @file: The file pointer to read from. 1082 * @buf: The buffer to copy the data to. 1083 * @nbytes: The number of bytes to read. 1084 * @ppos: The position in the file to start reading from. 1085 * 1086 * Description: 1087 * This routine reads data from from the buffer indicated in the private_data 1088 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1089 * data to @buf. 1090 * 1091 * Returns: 1092 * This function returns the amount of data that was read (this could be less 1093 * than @nbytes if the end of the file was reached) or a negative error value. 1094 **/ 1095 static ssize_t 1096 lpfc_debugfs_read(struct file *file, char __user *buf, 1097 size_t nbytes, loff_t *ppos) 1098 { 1099 struct lpfc_debug *debug = file->private_data; 1100 1101 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1102 debug->len); 1103 } 1104 1105 /** 1106 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1107 * @inode: The inode pointer that contains a vport pointer. (unused) 1108 * @file: The file pointer that contains the buffer to release. 1109 * 1110 * Description: 1111 * This routine frees the buffer that was allocated when the debugfs file was 1112 * opened. 1113 * 1114 * Returns: 1115 * This function returns zero. 1116 **/ 1117 static int 1118 lpfc_debugfs_release(struct inode *inode, struct file *file) 1119 { 1120 struct lpfc_debug *debug = file->private_data; 1121 1122 kfree(debug->buffer); 1123 kfree(debug); 1124 1125 return 0; 1126 } 1127 1128 static int 1129 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1130 { 1131 struct lpfc_debug *debug = file->private_data; 1132 1133 debug->buffer = NULL; 1134 kfree(debug); 1135 1136 return 0; 1137 } 1138 1139 /* 1140 * --------------------------------- 1141 * iDiag debugfs file access methods 1142 * --------------------------------- 1143 * 1144 * All access methods are through the proper SLI4 PCI function's debugfs 1145 * iDiag directory: 1146 * 1147 * /sys/kernel/debug/lpfc/fn<#>/iDiag 1148 */ 1149 1150 /** 1151 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 1152 * @buf: The pointer to the user space buffer. 1153 * @nbytes: The number of bytes in the user space buffer. 1154 * @idiag_cmd: pointer to the idiag command struct. 1155 * 1156 * This routine reads data from debugfs user space buffer and parses the 1157 * buffer for getting the idiag command and arguments. The while space in 1158 * between the set of data is used as the parsing separator. 1159 * 1160 * This routine returns 0 when successful, it returns proper error code 1161 * back to the user space in error conditions. 1162 */ 1163 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 1164 struct lpfc_idiag_cmd *idiag_cmd) 1165 { 1166 char mybuf[64]; 1167 char *pbuf, *step_str; 1168 int i; 1169 size_t bsize; 1170 1171 /* Protect copy from user */ 1172 if (!access_ok(VERIFY_READ, buf, nbytes)) 1173 return -EFAULT; 1174 1175 memset(mybuf, 0, sizeof(mybuf)); 1176 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 1177 bsize = min(nbytes, (sizeof(mybuf)-1)); 1178 1179 if (copy_from_user(mybuf, buf, bsize)) 1180 return -EFAULT; 1181 pbuf = &mybuf[0]; 1182 step_str = strsep(&pbuf, "\t "); 1183 1184 /* The opcode must present */ 1185 if (!step_str) 1186 return -EINVAL; 1187 1188 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 1189 if (idiag_cmd->opcode == 0) 1190 return -EINVAL; 1191 1192 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 1193 step_str = strsep(&pbuf, "\t "); 1194 if (!step_str) 1195 return i; 1196 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 1197 } 1198 return i; 1199 } 1200 1201 /** 1202 * lpfc_idiag_open - idiag open debugfs 1203 * @inode: The inode pointer that contains a pointer to phba. 1204 * @file: The file pointer to attach the file operation. 1205 * 1206 * Description: 1207 * This routine is the entry point for the debugfs open file operation. It 1208 * gets the reference to phba from the i_private field in @inode, it then 1209 * allocates buffer for the file operation, performs the necessary PCI config 1210 * space read into the allocated buffer according to the idiag user command 1211 * setup, and then returns a pointer to buffer in the private_data field in 1212 * @file. 1213 * 1214 * Returns: 1215 * This function returns zero if successful. On error it will return an 1216 * negative error value. 1217 **/ 1218 static int 1219 lpfc_idiag_open(struct inode *inode, struct file *file) 1220 { 1221 struct lpfc_debug *debug; 1222 1223 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1224 if (!debug) 1225 return -ENOMEM; 1226 1227 debug->i_private = inode->i_private; 1228 debug->buffer = NULL; 1229 file->private_data = debug; 1230 1231 return 0; 1232 } 1233 1234 /** 1235 * lpfc_idiag_release - Release idiag access file operation 1236 * @inode: The inode pointer that contains a vport pointer. (unused) 1237 * @file: The file pointer that contains the buffer to release. 1238 * 1239 * Description: 1240 * This routine is the generic release routine for the idiag access file 1241 * operation, it frees the buffer that was allocated when the debugfs file 1242 * was opened. 1243 * 1244 * Returns: 1245 * This function returns zero. 1246 **/ 1247 static int 1248 lpfc_idiag_release(struct inode *inode, struct file *file) 1249 { 1250 struct lpfc_debug *debug = file->private_data; 1251 1252 /* Free the buffers to the file operation */ 1253 kfree(debug->buffer); 1254 kfree(debug); 1255 1256 return 0; 1257 } 1258 1259 /** 1260 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 1261 * @inode: The inode pointer that contains a vport pointer. (unused) 1262 * @file: The file pointer that contains the buffer to release. 1263 * 1264 * Description: 1265 * This routine frees the buffer that was allocated when the debugfs file 1266 * was opened. It also reset the fields in the idiag command struct in the 1267 * case of command for write operation. 1268 * 1269 * Returns: 1270 * This function returns zero. 1271 **/ 1272 static int 1273 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 1274 { 1275 struct lpfc_debug *debug = file->private_data; 1276 1277 if (debug->op == LPFC_IDIAG_OP_WR) { 1278 switch (idiag.cmd.opcode) { 1279 case LPFC_IDIAG_CMD_PCICFG_WR: 1280 case LPFC_IDIAG_CMD_PCICFG_ST: 1281 case LPFC_IDIAG_CMD_PCICFG_CL: 1282 case LPFC_IDIAG_CMD_QUEACC_WR: 1283 case LPFC_IDIAG_CMD_QUEACC_ST: 1284 case LPFC_IDIAG_CMD_QUEACC_CL: 1285 memset(&idiag, 0, sizeof(idiag)); 1286 break; 1287 default: 1288 break; 1289 } 1290 } 1291 1292 /* Free the buffers to the file operation */ 1293 kfree(debug->buffer); 1294 kfree(debug); 1295 1296 return 0; 1297 } 1298 1299 /** 1300 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 1301 * @file: The file pointer to read from. 1302 * @buf: The buffer to copy the data to. 1303 * @nbytes: The number of bytes to read. 1304 * @ppos: The position in the file to start reading from. 1305 * 1306 * Description: 1307 * This routine reads data from the @phba pci config space according to the 1308 * idiag command, and copies to user @buf. Depending on the PCI config space 1309 * read command setup, it does either a single register read of a byte 1310 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 1311 * registers from the 4K extended PCI config space. 1312 * 1313 * Returns: 1314 * This function returns the amount of data that was read (this could be less 1315 * than @nbytes if the end of the file was reached) or a negative error value. 1316 **/ 1317 static ssize_t 1318 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 1319 loff_t *ppos) 1320 { 1321 struct lpfc_debug *debug = file->private_data; 1322 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1323 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 1324 int where, count; 1325 char *pbuffer; 1326 struct pci_dev *pdev; 1327 uint32_t u32val; 1328 uint16_t u16val; 1329 uint8_t u8val; 1330 1331 pdev = phba->pcidev; 1332 if (!pdev) 1333 return 0; 1334 1335 /* This is a user read operation */ 1336 debug->op = LPFC_IDIAG_OP_RD; 1337 1338 if (!debug->buffer) 1339 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 1340 if (!debug->buffer) 1341 return 0; 1342 pbuffer = debug->buffer; 1343 1344 if (*ppos) 1345 return 0; 1346 1347 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 1348 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1349 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1350 } else 1351 return 0; 1352 1353 /* Read single PCI config space register */ 1354 switch (count) { 1355 case SIZE_U8: /* byte (8 bits) */ 1356 pci_read_config_byte(pdev, where, &u8val); 1357 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1358 "%03x: %02x\n", where, u8val); 1359 break; 1360 case SIZE_U16: /* word (16 bits) */ 1361 pci_read_config_word(pdev, where, &u16val); 1362 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1363 "%03x: %04x\n", where, u16val); 1364 break; 1365 case SIZE_U32: /* double word (32 bits) */ 1366 pci_read_config_dword(pdev, where, &u32val); 1367 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1368 "%03x: %08x\n", where, u32val); 1369 break; 1370 case LPFC_PCI_CFG_BROWSE: /* browse all */ 1371 goto pcicfg_browse; 1372 break; 1373 default: 1374 /* illegal count */ 1375 len = 0; 1376 break; 1377 } 1378 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1379 1380 pcicfg_browse: 1381 1382 /* Browse all PCI config space registers */ 1383 offset_label = idiag.offset.last_rd; 1384 offset = offset_label; 1385 1386 /* Read PCI config space */ 1387 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1388 "%03x: ", offset_label); 1389 while (index > 0) { 1390 pci_read_config_dword(pdev, offset, &u32val); 1391 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1392 "%08x ", u32val); 1393 offset += sizeof(uint32_t); 1394 if (offset >= LPFC_PCI_CFG_SIZE) { 1395 len += snprintf(pbuffer+len, 1396 LPFC_PCI_CFG_SIZE-len, "\n"); 1397 break; 1398 } 1399 index -= sizeof(uint32_t); 1400 if (!index) 1401 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1402 "\n"); 1403 else if (!(index % (8 * sizeof(uint32_t)))) { 1404 offset_label += (8 * sizeof(uint32_t)); 1405 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 1406 "\n%03x: ", offset_label); 1407 } 1408 } 1409 1410 /* Set up the offset for next portion of pci cfg read */ 1411 if (index == 0) { 1412 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 1413 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 1414 idiag.offset.last_rd = 0; 1415 } else 1416 idiag.offset.last_rd = 0; 1417 1418 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1419 } 1420 1421 /** 1422 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 1423 * @file: The file pointer to read from. 1424 * @buf: The buffer to copy the user data from. 1425 * @nbytes: The number of bytes to get. 1426 * @ppos: The position in the file to start reading from. 1427 * 1428 * This routine get the debugfs idiag command struct from user space and 1429 * then perform the syntax check for PCI config space read or write command 1430 * accordingly. In the case of PCI config space read command, it sets up 1431 * the command in the idiag command struct for the debugfs read operation. 1432 * In the case of PCI config space write operation, it executes the write 1433 * operation into the PCI config space accordingly. 1434 * 1435 * It returns the @nbytges passing in from debugfs user space when successful. 1436 * In case of error conditions, it returns proper error code back to the user 1437 * space. 1438 */ 1439 static ssize_t 1440 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 1441 size_t nbytes, loff_t *ppos) 1442 { 1443 struct lpfc_debug *debug = file->private_data; 1444 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1445 uint32_t where, value, count; 1446 uint32_t u32val; 1447 uint16_t u16val; 1448 uint8_t u8val; 1449 struct pci_dev *pdev; 1450 int rc; 1451 1452 pdev = phba->pcidev; 1453 if (!pdev) 1454 return -EFAULT; 1455 1456 /* This is a user write operation */ 1457 debug->op = LPFC_IDIAG_OP_WR; 1458 1459 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 1460 if (rc < 0) 1461 return rc; 1462 1463 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 1464 /* Sanity check on PCI config read command line arguments */ 1465 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 1466 goto error_out; 1467 /* Read command from PCI config space, set up command fields */ 1468 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1469 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1470 if (count == LPFC_PCI_CFG_BROWSE) { 1471 if (where % sizeof(uint32_t)) 1472 goto error_out; 1473 /* Starting offset to browse */ 1474 idiag.offset.last_rd = where; 1475 } else if ((count != sizeof(uint8_t)) && 1476 (count != sizeof(uint16_t)) && 1477 (count != sizeof(uint32_t))) 1478 goto error_out; 1479 if (count == sizeof(uint8_t)) { 1480 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 1481 goto error_out; 1482 if (where % sizeof(uint8_t)) 1483 goto error_out; 1484 } 1485 if (count == sizeof(uint16_t)) { 1486 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 1487 goto error_out; 1488 if (where % sizeof(uint16_t)) 1489 goto error_out; 1490 } 1491 if (count == sizeof(uint32_t)) { 1492 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 1493 goto error_out; 1494 if (where % sizeof(uint32_t)) 1495 goto error_out; 1496 } 1497 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 1498 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 1499 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1500 /* Sanity check on PCI config write command line arguments */ 1501 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 1502 goto error_out; 1503 /* Write command to PCI config space, read-modify-write */ 1504 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 1505 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 1506 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 1507 /* Sanity checks */ 1508 if ((count != sizeof(uint8_t)) && 1509 (count != sizeof(uint16_t)) && 1510 (count != sizeof(uint32_t))) 1511 goto error_out; 1512 if (count == sizeof(uint8_t)) { 1513 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 1514 goto error_out; 1515 if (where % sizeof(uint8_t)) 1516 goto error_out; 1517 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1518 pci_write_config_byte(pdev, where, 1519 (uint8_t)value); 1520 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1521 rc = pci_read_config_byte(pdev, where, &u8val); 1522 if (!rc) { 1523 u8val |= (uint8_t)value; 1524 pci_write_config_byte(pdev, where, 1525 u8val); 1526 } 1527 } 1528 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1529 rc = pci_read_config_byte(pdev, where, &u8val); 1530 if (!rc) { 1531 u8val &= (uint8_t)(~value); 1532 pci_write_config_byte(pdev, where, 1533 u8val); 1534 } 1535 } 1536 } 1537 if (count == sizeof(uint16_t)) { 1538 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 1539 goto error_out; 1540 if (where % sizeof(uint16_t)) 1541 goto error_out; 1542 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1543 pci_write_config_word(pdev, where, 1544 (uint16_t)value); 1545 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1546 rc = pci_read_config_word(pdev, where, &u16val); 1547 if (!rc) { 1548 u16val |= (uint16_t)value; 1549 pci_write_config_word(pdev, where, 1550 u16val); 1551 } 1552 } 1553 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1554 rc = pci_read_config_word(pdev, where, &u16val); 1555 if (!rc) { 1556 u16val &= (uint16_t)(~value); 1557 pci_write_config_word(pdev, where, 1558 u16val); 1559 } 1560 } 1561 } 1562 if (count == sizeof(uint32_t)) { 1563 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 1564 goto error_out; 1565 if (where % sizeof(uint32_t)) 1566 goto error_out; 1567 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 1568 pci_write_config_dword(pdev, where, value); 1569 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 1570 rc = pci_read_config_dword(pdev, where, 1571 &u32val); 1572 if (!rc) { 1573 u32val |= value; 1574 pci_write_config_dword(pdev, where, 1575 u32val); 1576 } 1577 } 1578 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 1579 rc = pci_read_config_dword(pdev, where, 1580 &u32val); 1581 if (!rc) { 1582 u32val &= ~value; 1583 pci_write_config_dword(pdev, where, 1584 u32val); 1585 } 1586 } 1587 } 1588 } else 1589 /* All other opecodes are illegal for now */ 1590 goto error_out; 1591 1592 return nbytes; 1593 error_out: 1594 memset(&idiag, 0, sizeof(idiag)); 1595 return -EINVAL; 1596 } 1597 1598 /** 1599 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 1600 * @file: The file pointer to read from. 1601 * @buf: The buffer to copy the data to. 1602 * @nbytes: The number of bytes to read. 1603 * @ppos: The position in the file to start reading from. 1604 * 1605 * Description: 1606 * This routine reads data from the @phba pci bar memory mapped space 1607 * according to the idiag command, and copies to user @buf. 1608 * 1609 * Returns: 1610 * This function returns the amount of data that was read (this could be less 1611 * than @nbytes if the end of the file was reached) or a negative error value. 1612 **/ 1613 static ssize_t 1614 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 1615 loff_t *ppos) 1616 { 1617 struct lpfc_debug *debug = file->private_data; 1618 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1619 int offset_label, offset, offset_run, len = 0, index; 1620 int bar_num, acc_range, bar_size; 1621 char *pbuffer; 1622 void __iomem *mem_mapped_bar; 1623 uint32_t if_type; 1624 struct pci_dev *pdev; 1625 uint32_t u32val; 1626 1627 pdev = phba->pcidev; 1628 if (!pdev) 1629 return 0; 1630 1631 /* This is a user read operation */ 1632 debug->op = LPFC_IDIAG_OP_RD; 1633 1634 if (!debug->buffer) 1635 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 1636 if (!debug->buffer) 1637 return 0; 1638 pbuffer = debug->buffer; 1639 1640 if (*ppos) 1641 return 0; 1642 1643 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 1644 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 1645 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 1646 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 1647 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 1648 } else 1649 return 0; 1650 1651 if (acc_range == 0) 1652 return 0; 1653 1654 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1655 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1656 if (bar_num == IDIAG_BARACC_BAR_0) 1657 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1658 else if (bar_num == IDIAG_BARACC_BAR_1) 1659 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 1660 else if (bar_num == IDIAG_BARACC_BAR_2) 1661 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 1662 else 1663 return 0; 1664 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1665 if (bar_num == IDIAG_BARACC_BAR_0) 1666 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1667 else 1668 return 0; 1669 } else 1670 return 0; 1671 1672 /* Read single PCI bar space register */ 1673 if (acc_range == SINGLE_WORD) { 1674 offset_run = offset; 1675 u32val = readl(mem_mapped_bar + offset_run); 1676 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1677 "%05x: %08x\n", offset_run, u32val); 1678 } else 1679 goto baracc_browse; 1680 1681 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1682 1683 baracc_browse: 1684 1685 /* Browse all PCI bar space registers */ 1686 offset_label = idiag.offset.last_rd; 1687 offset_run = offset_label; 1688 1689 /* Read PCI bar memory mapped space */ 1690 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1691 "%05x: ", offset_label); 1692 index = LPFC_PCI_BAR_RD_SIZE; 1693 while (index > 0) { 1694 u32val = readl(mem_mapped_bar + offset_run); 1695 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 1696 "%08x ", u32val); 1697 offset_run += sizeof(uint32_t); 1698 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1699 if (offset_run >= bar_size) { 1700 len += snprintf(pbuffer+len, 1701 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1702 break; 1703 } 1704 } else { 1705 if (offset_run >= offset + 1706 (acc_range * sizeof(uint32_t))) { 1707 len += snprintf(pbuffer+len, 1708 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1709 break; 1710 } 1711 } 1712 index -= sizeof(uint32_t); 1713 if (!index) 1714 len += snprintf(pbuffer+len, 1715 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 1716 else if (!(index % (8 * sizeof(uint32_t)))) { 1717 offset_label += (8 * sizeof(uint32_t)); 1718 len += snprintf(pbuffer+len, 1719 LPFC_PCI_BAR_RD_BUF_SIZE-len, 1720 "\n%05x: ", offset_label); 1721 } 1722 } 1723 1724 /* Set up the offset for next portion of pci bar read */ 1725 if (index == 0) { 1726 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 1727 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1728 if (idiag.offset.last_rd >= bar_size) 1729 idiag.offset.last_rd = 0; 1730 } else { 1731 if (offset_run >= offset + 1732 (acc_range * sizeof(uint32_t))) 1733 idiag.offset.last_rd = offset; 1734 } 1735 } else { 1736 if (acc_range == LPFC_PCI_BAR_BROWSE) 1737 idiag.offset.last_rd = 0; 1738 else 1739 idiag.offset.last_rd = offset; 1740 } 1741 1742 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 1743 } 1744 1745 /** 1746 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 1747 * @file: The file pointer to read from. 1748 * @buf: The buffer to copy the user data from. 1749 * @nbytes: The number of bytes to get. 1750 * @ppos: The position in the file to start reading from. 1751 * 1752 * This routine get the debugfs idiag command struct from user space and 1753 * then perform the syntax check for PCI bar memory mapped space read or 1754 * write command accordingly. In the case of PCI bar memory mapped space 1755 * read command, it sets up the command in the idiag command struct for 1756 * the debugfs read operation. In the case of PCI bar memorpy mapped space 1757 * write operation, it executes the write operation into the PCI bar memory 1758 * mapped space accordingly. 1759 * 1760 * It returns the @nbytges passing in from debugfs user space when successful. 1761 * In case of error conditions, it returns proper error code back to the user 1762 * space. 1763 */ 1764 static ssize_t 1765 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 1766 size_t nbytes, loff_t *ppos) 1767 { 1768 struct lpfc_debug *debug = file->private_data; 1769 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1770 uint32_t bar_num, bar_size, offset, value, acc_range; 1771 struct pci_dev *pdev; 1772 void __iomem *mem_mapped_bar; 1773 uint32_t if_type; 1774 uint32_t u32val; 1775 int rc; 1776 1777 pdev = phba->pcidev; 1778 if (!pdev) 1779 return -EFAULT; 1780 1781 /* This is a user write operation */ 1782 debug->op = LPFC_IDIAG_OP_WR; 1783 1784 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 1785 if (rc < 0) 1786 return rc; 1787 1788 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1789 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 1790 1791 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1792 if ((bar_num != IDIAG_BARACC_BAR_0) && 1793 (bar_num != IDIAG_BARACC_BAR_1) && 1794 (bar_num != IDIAG_BARACC_BAR_2)) 1795 goto error_out; 1796 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1797 if (bar_num != IDIAG_BARACC_BAR_0) 1798 goto error_out; 1799 } else 1800 goto error_out; 1801 1802 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 1803 if (bar_num == IDIAG_BARACC_BAR_0) { 1804 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1805 LPFC_PCI_IF0_BAR0_SIZE; 1806 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1807 } else if (bar_num == IDIAG_BARACC_BAR_1) { 1808 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1809 LPFC_PCI_IF0_BAR1_SIZE; 1810 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 1811 } else if (bar_num == IDIAG_BARACC_BAR_2) { 1812 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1813 LPFC_PCI_IF0_BAR2_SIZE; 1814 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 1815 } else 1816 goto error_out; 1817 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 1818 if (bar_num == IDIAG_BARACC_BAR_0) { 1819 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 1820 LPFC_PCI_IF2_BAR0_SIZE; 1821 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 1822 } else 1823 goto error_out; 1824 } else 1825 goto error_out; 1826 1827 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 1828 if (offset % sizeof(uint32_t)) 1829 goto error_out; 1830 1831 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 1832 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 1833 /* Sanity check on PCI config read command line arguments */ 1834 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 1835 goto error_out; 1836 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 1837 if (acc_range == LPFC_PCI_BAR_BROWSE) { 1838 if (offset > bar_size - sizeof(uint32_t)) 1839 goto error_out; 1840 /* Starting offset to browse */ 1841 idiag.offset.last_rd = offset; 1842 } else if (acc_range > SINGLE_WORD) { 1843 if (offset + acc_range * sizeof(uint32_t) > bar_size) 1844 goto error_out; 1845 /* Starting offset to browse */ 1846 idiag.offset.last_rd = offset; 1847 } else if (acc_range != SINGLE_WORD) 1848 goto error_out; 1849 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 1850 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 1851 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 1852 /* Sanity check on PCI bar write command line arguments */ 1853 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 1854 goto error_out; 1855 /* Write command to PCI bar space, read-modify-write */ 1856 acc_range = SINGLE_WORD; 1857 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 1858 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 1859 writel(value, mem_mapped_bar + offset); 1860 readl(mem_mapped_bar + offset); 1861 } 1862 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 1863 u32val = readl(mem_mapped_bar + offset); 1864 u32val |= value; 1865 writel(u32val, mem_mapped_bar + offset); 1866 readl(mem_mapped_bar + offset); 1867 } 1868 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 1869 u32val = readl(mem_mapped_bar + offset); 1870 u32val &= ~value; 1871 writel(u32val, mem_mapped_bar + offset); 1872 readl(mem_mapped_bar + offset); 1873 } 1874 } else 1875 /* All other opecodes are illegal for now */ 1876 goto error_out; 1877 1878 return nbytes; 1879 error_out: 1880 memset(&idiag, 0, sizeof(idiag)); 1881 return -EINVAL; 1882 } 1883 1884 /** 1885 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 1886 * @file: The file pointer to read from. 1887 * @buf: The buffer to copy the data to. 1888 * @nbytes: The number of bytes to read. 1889 * @ppos: The position in the file to start reading from. 1890 * 1891 * Description: 1892 * This routine reads data from the @phba SLI4 PCI function queue information, 1893 * and copies to user @buf. 1894 * 1895 * Returns: 1896 * This function returns the amount of data that was read (this could be less 1897 * than @nbytes if the end of the file was reached) or a negative error value. 1898 **/ 1899 static ssize_t 1900 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 1901 loff_t *ppos) 1902 { 1903 struct lpfc_debug *debug = file->private_data; 1904 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 1905 int len = 0, fcp_qidx; 1906 char *pbuffer; 1907 1908 if (!debug->buffer) 1909 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 1910 if (!debug->buffer) 1911 return 0; 1912 pbuffer = debug->buffer; 1913 1914 if (*ppos) 1915 return 0; 1916 1917 /* Get slow-path event queue information */ 1918 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1919 "Slow-path EQ information:\n"); 1920 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1921 "\tEQID[%02d], " 1922 "QE-COUNT[%04d], QE-SIZE[%04d], " 1923 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", 1924 phba->sli4_hba.sp_eq->queue_id, 1925 phba->sli4_hba.sp_eq->entry_count, 1926 phba->sli4_hba.sp_eq->entry_size, 1927 phba->sli4_hba.sp_eq->host_index, 1928 phba->sli4_hba.sp_eq->hba_index); 1929 1930 /* Get fast-path event queue information */ 1931 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1932 "Fast-path EQ information:\n"); 1933 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) { 1934 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1935 "\tEQID[%02d], " 1936 "QE-COUNT[%04d], QE-SIZE[%04d], " 1937 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", 1938 phba->sli4_hba.fp_eq[fcp_qidx]->queue_id, 1939 phba->sli4_hba.fp_eq[fcp_qidx]->entry_count, 1940 phba->sli4_hba.fp_eq[fcp_qidx]->entry_size, 1941 phba->sli4_hba.fp_eq[fcp_qidx]->host_index, 1942 phba->sli4_hba.fp_eq[fcp_qidx]->hba_index); 1943 } 1944 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 1945 1946 /* Get mailbox complete queue information */ 1947 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1948 "Slow-path MBX CQ information:\n"); 1949 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1950 "Associated EQID[%02d]:\n", 1951 phba->sli4_hba.mbx_cq->assoc_qid); 1952 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1953 "\tCQID[%02d], " 1954 "QE-COUNT[%04d], QE-SIZE[%04d], " 1955 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", 1956 phba->sli4_hba.mbx_cq->queue_id, 1957 phba->sli4_hba.mbx_cq->entry_count, 1958 phba->sli4_hba.mbx_cq->entry_size, 1959 phba->sli4_hba.mbx_cq->host_index, 1960 phba->sli4_hba.mbx_cq->hba_index); 1961 1962 /* Get slow-path complete queue information */ 1963 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1964 "Slow-path ELS CQ information:\n"); 1965 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1966 "Associated EQID[%02d]:\n", 1967 phba->sli4_hba.els_cq->assoc_qid); 1968 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1969 "\tCQID [%02d], " 1970 "QE-COUNT[%04d], QE-SIZE[%04d], " 1971 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", 1972 phba->sli4_hba.els_cq->queue_id, 1973 phba->sli4_hba.els_cq->entry_count, 1974 phba->sli4_hba.els_cq->entry_size, 1975 phba->sli4_hba.els_cq->host_index, 1976 phba->sli4_hba.els_cq->hba_index); 1977 1978 /* Get fast-path complete queue information */ 1979 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1980 "Fast-path FCP CQ information:\n"); 1981 fcp_qidx = 0; 1982 do { 1983 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1984 "Associated EQID[%02d]:\n", 1985 phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid); 1986 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 1987 "\tCQID[%02d], " 1988 "QE-COUNT[%04d], QE-SIZE[%04d], " 1989 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", 1990 phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id, 1991 phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count, 1992 phba->sli4_hba.fcp_cq[fcp_qidx]->entry_size, 1993 phba->sli4_hba.fcp_cq[fcp_qidx]->host_index, 1994 phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index); 1995 } while (++fcp_qidx < phba->cfg_fcp_eq_count); 1996 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 1997 1998 /* Get mailbox queue information */ 1999 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2000 "Slow-path MBX MQ information:\n"); 2001 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2002 "Associated CQID[%02d]:\n", 2003 phba->sli4_hba.mbx_wq->assoc_qid); 2004 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2005 "\tWQID[%02d], " 2006 "QE-COUNT[%04d], QE-SIZE[%04d], " 2007 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", 2008 phba->sli4_hba.mbx_wq->queue_id, 2009 phba->sli4_hba.mbx_wq->entry_count, 2010 phba->sli4_hba.mbx_wq->entry_size, 2011 phba->sli4_hba.mbx_wq->host_index, 2012 phba->sli4_hba.mbx_wq->hba_index); 2013 2014 /* Get slow-path work queue information */ 2015 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2016 "Slow-path ELS WQ information:\n"); 2017 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2018 "Associated CQID[%02d]:\n", 2019 phba->sli4_hba.els_wq->assoc_qid); 2020 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2021 "\tWQID[%02d], " 2022 "QE-COUNT[%04d], QE-SIZE[%04d], " 2023 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n", 2024 phba->sli4_hba.els_wq->queue_id, 2025 phba->sli4_hba.els_wq->entry_count, 2026 phba->sli4_hba.els_wq->entry_size, 2027 phba->sli4_hba.els_wq->host_index, 2028 phba->sli4_hba.els_wq->hba_index); 2029 2030 /* Get fast-path work queue information */ 2031 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2032 "Fast-path FCP WQ information:\n"); 2033 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) { 2034 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2035 "Associated CQID[%02d]:\n", 2036 phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid); 2037 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2038 "\tWQID[%02d], " 2039 "QE-COUNT[%04d], WQE-SIZE[%04d], " 2040 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", 2041 phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id, 2042 phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count, 2043 phba->sli4_hba.fcp_wq[fcp_qidx]->entry_size, 2044 phba->sli4_hba.fcp_wq[fcp_qidx]->host_index, 2045 phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index); 2046 } 2047 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); 2048 2049 /* Get receive queue information */ 2050 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2051 "Slow-path RQ information:\n"); 2052 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2053 "Associated CQID[%02d]:\n", 2054 phba->sli4_hba.hdr_rq->assoc_qid); 2055 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2056 "\tHQID[%02d], " 2057 "QE-COUNT[%04d], QE-SIZE[%04d], " 2058 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", 2059 phba->sli4_hba.hdr_rq->queue_id, 2060 phba->sli4_hba.hdr_rq->entry_count, 2061 phba->sli4_hba.hdr_rq->entry_size, 2062 phba->sli4_hba.hdr_rq->host_index, 2063 phba->sli4_hba.hdr_rq->hba_index); 2064 len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, 2065 "\tDQID[%02d], " 2066 "QE-COUNT[%04d], QE-SIZE[%04d], " 2067 "HOST-INDEX[%04d], PORT-INDEX[%04d]\n", 2068 phba->sli4_hba.dat_rq->queue_id, 2069 phba->sli4_hba.dat_rq->entry_count, 2070 phba->sli4_hba.dat_rq->entry_size, 2071 phba->sli4_hba.dat_rq->host_index, 2072 phba->sli4_hba.dat_rq->hba_index); 2073 2074 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2075 } 2076 2077 /** 2078 * lpfc_idiag_que_param_check - queue access command parameter sanity check 2079 * @q: The pointer to queue structure. 2080 * @index: The index into a queue entry. 2081 * @count: The number of queue entries to access. 2082 * 2083 * Description: 2084 * The routine performs sanity check on device queue access method commands. 2085 * 2086 * Returns: 2087 * This function returns -EINVAL when fails the sanity check, otherwise, it 2088 * returns 0. 2089 **/ 2090 static int 2091 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 2092 { 2093 /* Only support single entry read or browsing */ 2094 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 2095 return -EINVAL; 2096 if (index > q->entry_count - 1) 2097 return -EINVAL; 2098 return 0; 2099 } 2100 2101 /** 2102 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 2103 * @pbuffer: The pointer to buffer to copy the read data into. 2104 * @pque: The pointer to the queue to be read. 2105 * @index: The index into the queue entry. 2106 * 2107 * Description: 2108 * This routine reads out a single entry from the given queue's index location 2109 * and copies it into the buffer provided. 2110 * 2111 * Returns: 2112 * This function returns 0 when it fails, otherwise, it returns the length of 2113 * the data read into the buffer provided. 2114 **/ 2115 static int 2116 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 2117 uint32_t index) 2118 { 2119 int offset, esize; 2120 uint32_t *pentry; 2121 2122 if (!pbuffer || !pque) 2123 return 0; 2124 2125 esize = pque->entry_size; 2126 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 2127 "QE-INDEX[%04d]:\n", index); 2128 2129 offset = 0; 2130 pentry = pque->qe[index].address; 2131 while (esize > 0) { 2132 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 2133 "%08x ", *pentry); 2134 pentry++; 2135 offset += sizeof(uint32_t); 2136 esize -= sizeof(uint32_t); 2137 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 2138 len += snprintf(pbuffer+len, 2139 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 2140 } 2141 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 2142 2143 return len; 2144 } 2145 2146 /** 2147 * lpfc_idiag_queacc_read - idiag debugfs read port queue 2148 * @file: The file pointer to read from. 2149 * @buf: The buffer to copy the data to. 2150 * @nbytes: The number of bytes to read. 2151 * @ppos: The position in the file to start reading from. 2152 * 2153 * Description: 2154 * This routine reads data from the @phba device queue memory according to the 2155 * idiag command, and copies to user @buf. Depending on the queue dump read 2156 * command setup, it does either a single queue entry read or browing through 2157 * all entries of the queue. 2158 * 2159 * Returns: 2160 * This function returns the amount of data that was read (this could be less 2161 * than @nbytes if the end of the file was reached) or a negative error value. 2162 **/ 2163 static ssize_t 2164 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 2165 loff_t *ppos) 2166 { 2167 struct lpfc_debug *debug = file->private_data; 2168 uint32_t last_index, index, count; 2169 struct lpfc_queue *pque = NULL; 2170 char *pbuffer; 2171 int len = 0; 2172 2173 /* This is a user read operation */ 2174 debug->op = LPFC_IDIAG_OP_RD; 2175 2176 if (!debug->buffer) 2177 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 2178 if (!debug->buffer) 2179 return 0; 2180 pbuffer = debug->buffer; 2181 2182 if (*ppos) 2183 return 0; 2184 2185 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2186 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 2187 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 2188 pque = (struct lpfc_queue *)idiag.ptr_private; 2189 } else 2190 return 0; 2191 2192 /* Browse the queue starting from index */ 2193 if (count == LPFC_QUE_ACC_BROWSE) 2194 goto que_browse; 2195 2196 /* Read a single entry from the queue */ 2197 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 2198 2199 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2200 2201 que_browse: 2202 2203 /* Browse all entries from the queue */ 2204 last_index = idiag.offset.last_rd; 2205 index = last_index; 2206 2207 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 2208 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 2209 index++; 2210 if (index > pque->entry_count - 1) 2211 break; 2212 } 2213 2214 /* Set up the offset for next portion of pci cfg read */ 2215 if (index > pque->entry_count - 1) 2216 index = 0; 2217 idiag.offset.last_rd = index; 2218 2219 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2220 } 2221 2222 /** 2223 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 2224 * @file: The file pointer to read from. 2225 * @buf: The buffer to copy the user data from. 2226 * @nbytes: The number of bytes to get. 2227 * @ppos: The position in the file to start reading from. 2228 * 2229 * This routine get the debugfs idiag command struct from user space and then 2230 * perform the syntax check for port queue read (dump) or write (set) command 2231 * accordingly. In the case of port queue read command, it sets up the command 2232 * in the idiag command struct for the following debugfs read operation. In 2233 * the case of port queue write operation, it executes the write operation 2234 * into the port queue entry accordingly. 2235 * 2236 * It returns the @nbytges passing in from debugfs user space when successful. 2237 * In case of error conditions, it returns proper error code back to the user 2238 * space. 2239 **/ 2240 static ssize_t 2241 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 2242 size_t nbytes, loff_t *ppos) 2243 { 2244 struct lpfc_debug *debug = file->private_data; 2245 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2246 uint32_t qidx, quetp, queid, index, count, offset, value; 2247 uint32_t *pentry; 2248 struct lpfc_queue *pque; 2249 int rc; 2250 2251 /* This is a user write operation */ 2252 debug->op = LPFC_IDIAG_OP_WR; 2253 2254 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2255 if (rc < 0) 2256 return rc; 2257 2258 /* Get and sanity check on command feilds */ 2259 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 2260 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 2261 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 2262 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 2263 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 2264 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 2265 2266 /* Sanity check on command line arguments */ 2267 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 2268 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 2269 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 2270 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 2271 goto error_out; 2272 if (count != 1) 2273 goto error_out; 2274 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2275 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 2276 goto error_out; 2277 } else 2278 goto error_out; 2279 2280 switch (quetp) { 2281 case LPFC_IDIAG_EQ: 2282 /* Slow-path event queue */ 2283 if (phba->sli4_hba.sp_eq->queue_id == queid) { 2284 /* Sanity check */ 2285 rc = lpfc_idiag_que_param_check( 2286 phba->sli4_hba.sp_eq, index, count); 2287 if (rc) 2288 goto error_out; 2289 idiag.ptr_private = phba->sli4_hba.sp_eq; 2290 goto pass_check; 2291 } 2292 /* Fast-path event queue */ 2293 for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) { 2294 if (phba->sli4_hba.fp_eq[qidx]->queue_id == queid) { 2295 /* Sanity check */ 2296 rc = lpfc_idiag_que_param_check( 2297 phba->sli4_hba.fp_eq[qidx], 2298 index, count); 2299 if (rc) 2300 goto error_out; 2301 idiag.ptr_private = phba->sli4_hba.fp_eq[qidx]; 2302 goto pass_check; 2303 } 2304 } 2305 goto error_out; 2306 break; 2307 case LPFC_IDIAG_CQ: 2308 /* MBX complete queue */ 2309 if (phba->sli4_hba.mbx_cq->queue_id == queid) { 2310 /* Sanity check */ 2311 rc = lpfc_idiag_que_param_check( 2312 phba->sli4_hba.mbx_cq, index, count); 2313 if (rc) 2314 goto error_out; 2315 idiag.ptr_private = phba->sli4_hba.mbx_cq; 2316 goto pass_check; 2317 } 2318 /* ELS complete queue */ 2319 if (phba->sli4_hba.els_cq->queue_id == queid) { 2320 /* Sanity check */ 2321 rc = lpfc_idiag_que_param_check( 2322 phba->sli4_hba.els_cq, index, count); 2323 if (rc) 2324 goto error_out; 2325 idiag.ptr_private = phba->sli4_hba.els_cq; 2326 goto pass_check; 2327 } 2328 /* FCP complete queue */ 2329 qidx = 0; 2330 do { 2331 if (phba->sli4_hba.fcp_cq[qidx]->queue_id == queid) { 2332 /* Sanity check */ 2333 rc = lpfc_idiag_que_param_check( 2334 phba->sli4_hba.fcp_cq[qidx], 2335 index, count); 2336 if (rc) 2337 goto error_out; 2338 idiag.ptr_private = 2339 phba->sli4_hba.fcp_cq[qidx]; 2340 goto pass_check; 2341 } 2342 } while (++qidx < phba->cfg_fcp_eq_count); 2343 goto error_out; 2344 break; 2345 case LPFC_IDIAG_MQ: 2346 /* MBX work queue */ 2347 if (phba->sli4_hba.mbx_wq->queue_id == queid) { 2348 /* Sanity check */ 2349 rc = lpfc_idiag_que_param_check( 2350 phba->sli4_hba.mbx_wq, index, count); 2351 if (rc) 2352 goto error_out; 2353 idiag.ptr_private = phba->sli4_hba.mbx_wq; 2354 goto pass_check; 2355 } 2356 break; 2357 case LPFC_IDIAG_WQ: 2358 /* ELS work queue */ 2359 if (phba->sli4_hba.els_wq->queue_id == queid) { 2360 /* Sanity check */ 2361 rc = lpfc_idiag_que_param_check( 2362 phba->sli4_hba.els_wq, index, count); 2363 if (rc) 2364 goto error_out; 2365 idiag.ptr_private = phba->sli4_hba.els_wq; 2366 goto pass_check; 2367 } 2368 /* FCP work queue */ 2369 for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) { 2370 if (phba->sli4_hba.fcp_wq[qidx]->queue_id == queid) { 2371 /* Sanity check */ 2372 rc = lpfc_idiag_que_param_check( 2373 phba->sli4_hba.fcp_wq[qidx], 2374 index, count); 2375 if (rc) 2376 goto error_out; 2377 idiag.ptr_private = 2378 phba->sli4_hba.fcp_wq[qidx]; 2379 goto pass_check; 2380 } 2381 } 2382 goto error_out; 2383 break; 2384 case LPFC_IDIAG_RQ: 2385 /* HDR queue */ 2386 if (phba->sli4_hba.hdr_rq->queue_id == queid) { 2387 /* Sanity check */ 2388 rc = lpfc_idiag_que_param_check( 2389 phba->sli4_hba.hdr_rq, index, count); 2390 if (rc) 2391 goto error_out; 2392 idiag.ptr_private = phba->sli4_hba.hdr_rq; 2393 goto pass_check; 2394 } 2395 /* DAT queue */ 2396 if (phba->sli4_hba.dat_rq->queue_id == queid) { 2397 /* Sanity check */ 2398 rc = lpfc_idiag_que_param_check( 2399 phba->sli4_hba.dat_rq, index, count); 2400 if (rc) 2401 goto error_out; 2402 idiag.ptr_private = phba->sli4_hba.dat_rq; 2403 goto pass_check; 2404 } 2405 goto error_out; 2406 break; 2407 default: 2408 goto error_out; 2409 break; 2410 } 2411 2412 pass_check: 2413 2414 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 2415 if (count == LPFC_QUE_ACC_BROWSE) 2416 idiag.offset.last_rd = index; 2417 } 2418 2419 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 2420 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 2421 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 2422 /* Additional sanity checks on write operation */ 2423 pque = (struct lpfc_queue *)idiag.ptr_private; 2424 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 2425 goto error_out; 2426 pentry = pque->qe[index].address; 2427 pentry += offset; 2428 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 2429 *pentry = value; 2430 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 2431 *pentry |= value; 2432 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 2433 *pentry &= ~value; 2434 } 2435 return nbytes; 2436 2437 error_out: 2438 /* Clean out command structure on command error out */ 2439 memset(&idiag, 0, sizeof(idiag)); 2440 return -EINVAL; 2441 } 2442 2443 /** 2444 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 2445 * @phba: The pointer to hba structure. 2446 * @pbuffer: The pointer to the buffer to copy the data to. 2447 * @len: The lenght of bytes to copied. 2448 * @drbregid: The id to doorbell registers. 2449 * 2450 * Description: 2451 * This routine reads a doorbell register and copies its content to the 2452 * user buffer pointed to by @pbuffer. 2453 * 2454 * Returns: 2455 * This function returns the amount of data that was copied into @pbuffer. 2456 **/ 2457 static int 2458 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 2459 int len, uint32_t drbregid) 2460 { 2461 2462 if (!pbuffer) 2463 return 0; 2464 2465 switch (drbregid) { 2466 case LPFC_DRB_EQCQ: 2467 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2468 "EQCQ-DRB-REG: 0x%08x\n", 2469 readl(phba->sli4_hba.EQCQDBregaddr)); 2470 break; 2471 case LPFC_DRB_MQ: 2472 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2473 "MQ-DRB-REG: 0x%08x\n", 2474 readl(phba->sli4_hba.MQDBregaddr)); 2475 break; 2476 case LPFC_DRB_WQ: 2477 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2478 "WQ-DRB-REG: 0x%08x\n", 2479 readl(phba->sli4_hba.WQDBregaddr)); 2480 break; 2481 case LPFC_DRB_RQ: 2482 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 2483 "RQ-DRB-REG: 0x%08x\n", 2484 readl(phba->sli4_hba.RQDBregaddr)); 2485 break; 2486 default: 2487 break; 2488 } 2489 2490 return len; 2491 } 2492 2493 /** 2494 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 2495 * @file: The file pointer to read from. 2496 * @buf: The buffer to copy the data to. 2497 * @nbytes: The number of bytes to read. 2498 * @ppos: The position in the file to start reading from. 2499 * 2500 * Description: 2501 * This routine reads data from the @phba device doorbell register according 2502 * to the idiag command, and copies to user @buf. Depending on the doorbell 2503 * register read command setup, it does either a single doorbell register 2504 * read or dump all doorbell registers. 2505 * 2506 * Returns: 2507 * This function returns the amount of data that was read (this could be less 2508 * than @nbytes if the end of the file was reached) or a negative error value. 2509 **/ 2510 static ssize_t 2511 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 2512 loff_t *ppos) 2513 { 2514 struct lpfc_debug *debug = file->private_data; 2515 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2516 uint32_t drb_reg_id, i; 2517 char *pbuffer; 2518 int len = 0; 2519 2520 /* This is a user read operation */ 2521 debug->op = LPFC_IDIAG_OP_RD; 2522 2523 if (!debug->buffer) 2524 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 2525 if (!debug->buffer) 2526 return 0; 2527 pbuffer = debug->buffer; 2528 2529 if (*ppos) 2530 return 0; 2531 2532 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 2533 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 2534 else 2535 return 0; 2536 2537 if (drb_reg_id == LPFC_DRB_ACC_ALL) 2538 for (i = 1; i <= LPFC_DRB_MAX; i++) 2539 len = lpfc_idiag_drbacc_read_reg(phba, 2540 pbuffer, len, i); 2541 else 2542 len = lpfc_idiag_drbacc_read_reg(phba, 2543 pbuffer, len, drb_reg_id); 2544 2545 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2546 } 2547 2548 /** 2549 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 2550 * @file: The file pointer to read from. 2551 * @buf: The buffer to copy the user data from. 2552 * @nbytes: The number of bytes to get. 2553 * @ppos: The position in the file to start reading from. 2554 * 2555 * This routine get the debugfs idiag command struct from user space and then 2556 * perform the syntax check for port doorbell register read (dump) or write 2557 * (set) command accordingly. In the case of port queue read command, it sets 2558 * up the command in the idiag command struct for the following debugfs read 2559 * operation. In the case of port doorbell register write operation, it 2560 * executes the write operation into the port doorbell register accordingly. 2561 * 2562 * It returns the @nbytges passing in from debugfs user space when successful. 2563 * In case of error conditions, it returns proper error code back to the user 2564 * space. 2565 **/ 2566 static ssize_t 2567 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 2568 size_t nbytes, loff_t *ppos) 2569 { 2570 struct lpfc_debug *debug = file->private_data; 2571 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2572 uint32_t drb_reg_id, value, reg_val = 0; 2573 void __iomem *drb_reg; 2574 int rc; 2575 2576 /* This is a user write operation */ 2577 debug->op = LPFC_IDIAG_OP_WR; 2578 2579 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2580 if (rc < 0) 2581 return rc; 2582 2583 /* Sanity check on command line arguments */ 2584 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 2585 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 2586 2587 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 2588 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 2589 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2590 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 2591 goto error_out; 2592 if (drb_reg_id > LPFC_DRB_MAX) 2593 goto error_out; 2594 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 2595 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 2596 goto error_out; 2597 if ((drb_reg_id > LPFC_DRB_MAX) && 2598 (drb_reg_id != LPFC_DRB_ACC_ALL)) 2599 goto error_out; 2600 } else 2601 goto error_out; 2602 2603 /* Perform the write access operation */ 2604 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 2605 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 2606 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2607 switch (drb_reg_id) { 2608 case LPFC_DRB_EQCQ: 2609 drb_reg = phba->sli4_hba.EQCQDBregaddr; 2610 break; 2611 case LPFC_DRB_MQ: 2612 drb_reg = phba->sli4_hba.MQDBregaddr; 2613 break; 2614 case LPFC_DRB_WQ: 2615 drb_reg = phba->sli4_hba.WQDBregaddr; 2616 break; 2617 case LPFC_DRB_RQ: 2618 drb_reg = phba->sli4_hba.RQDBregaddr; 2619 break; 2620 default: 2621 goto error_out; 2622 } 2623 2624 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 2625 reg_val = value; 2626 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 2627 reg_val = readl(drb_reg); 2628 reg_val |= value; 2629 } 2630 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 2631 reg_val = readl(drb_reg); 2632 reg_val &= ~value; 2633 } 2634 writel(reg_val, drb_reg); 2635 readl(drb_reg); /* flush */ 2636 } 2637 return nbytes; 2638 2639 error_out: 2640 /* Clean out command structure on command error out */ 2641 memset(&idiag, 0, sizeof(idiag)); 2642 return -EINVAL; 2643 } 2644 2645 /** 2646 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 2647 * @phba: The pointer to hba structure. 2648 * @pbuffer: The pointer to the buffer to copy the data to. 2649 * @len: The lenght of bytes to copied. 2650 * @drbregid: The id to doorbell registers. 2651 * 2652 * Description: 2653 * This routine reads a control register and copies its content to the 2654 * user buffer pointed to by @pbuffer. 2655 * 2656 * Returns: 2657 * This function returns the amount of data that was copied into @pbuffer. 2658 **/ 2659 static int 2660 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 2661 int len, uint32_t ctlregid) 2662 { 2663 2664 if (!pbuffer) 2665 return 0; 2666 2667 switch (ctlregid) { 2668 case LPFC_CTL_PORT_SEM: 2669 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2670 "Port SemReg: 0x%08x\n", 2671 readl(phba->sli4_hba.conf_regs_memmap_p + 2672 LPFC_CTL_PORT_SEM_OFFSET)); 2673 break; 2674 case LPFC_CTL_PORT_STA: 2675 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2676 "Port StaReg: 0x%08x\n", 2677 readl(phba->sli4_hba.conf_regs_memmap_p + 2678 LPFC_CTL_PORT_STA_OFFSET)); 2679 break; 2680 case LPFC_CTL_PORT_CTL: 2681 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2682 "Port CtlReg: 0x%08x\n", 2683 readl(phba->sli4_hba.conf_regs_memmap_p + 2684 LPFC_CTL_PORT_CTL_OFFSET)); 2685 break; 2686 case LPFC_CTL_PORT_ER1: 2687 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2688 "Port Er1Reg: 0x%08x\n", 2689 readl(phba->sli4_hba.conf_regs_memmap_p + 2690 LPFC_CTL_PORT_ER1_OFFSET)); 2691 break; 2692 case LPFC_CTL_PORT_ER2: 2693 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2694 "Port Er2Reg: 0x%08x\n", 2695 readl(phba->sli4_hba.conf_regs_memmap_p + 2696 LPFC_CTL_PORT_ER2_OFFSET)); 2697 break; 2698 case LPFC_CTL_PDEV_CTL: 2699 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 2700 "PDev CtlReg: 0x%08x\n", 2701 readl(phba->sli4_hba.conf_regs_memmap_p + 2702 LPFC_CTL_PDEV_CTL_OFFSET)); 2703 break; 2704 default: 2705 break; 2706 } 2707 return len; 2708 } 2709 2710 /** 2711 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 2712 * @file: The file pointer to read from. 2713 * @buf: The buffer to copy the data to. 2714 * @nbytes: The number of bytes to read. 2715 * @ppos: The position in the file to start reading from. 2716 * 2717 * Description: 2718 * This routine reads data from the @phba port and device registers according 2719 * to the idiag command, and copies to user @buf. 2720 * 2721 * Returns: 2722 * This function returns the amount of data that was read (this could be less 2723 * than @nbytes if the end of the file was reached) or a negative error value. 2724 **/ 2725 static ssize_t 2726 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 2727 loff_t *ppos) 2728 { 2729 struct lpfc_debug *debug = file->private_data; 2730 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2731 uint32_t ctl_reg_id, i; 2732 char *pbuffer; 2733 int len = 0; 2734 2735 /* This is a user read operation */ 2736 debug->op = LPFC_IDIAG_OP_RD; 2737 2738 if (!debug->buffer) 2739 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 2740 if (!debug->buffer) 2741 return 0; 2742 pbuffer = debug->buffer; 2743 2744 if (*ppos) 2745 return 0; 2746 2747 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 2748 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 2749 else 2750 return 0; 2751 2752 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 2753 for (i = 1; i <= LPFC_CTL_MAX; i++) 2754 len = lpfc_idiag_ctlacc_read_reg(phba, 2755 pbuffer, len, i); 2756 else 2757 len = lpfc_idiag_ctlacc_read_reg(phba, 2758 pbuffer, len, ctl_reg_id); 2759 2760 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2761 } 2762 2763 /** 2764 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 2765 * @file: The file pointer to read from. 2766 * @buf: The buffer to copy the user data from. 2767 * @nbytes: The number of bytes to get. 2768 * @ppos: The position in the file to start reading from. 2769 * 2770 * This routine get the debugfs idiag command struct from user space and then 2771 * perform the syntax check for port and device control register read (dump) 2772 * or write (set) command accordingly. 2773 * 2774 * It returns the @nbytges passing in from debugfs user space when successful. 2775 * In case of error conditions, it returns proper error code back to the user 2776 * space. 2777 **/ 2778 static ssize_t 2779 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 2780 size_t nbytes, loff_t *ppos) 2781 { 2782 struct lpfc_debug *debug = file->private_data; 2783 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2784 uint32_t ctl_reg_id, value, reg_val = 0; 2785 void __iomem *ctl_reg; 2786 int rc; 2787 2788 /* This is a user write operation */ 2789 debug->op = LPFC_IDIAG_OP_WR; 2790 2791 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2792 if (rc < 0) 2793 return rc; 2794 2795 /* Sanity check on command line arguments */ 2796 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 2797 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 2798 2799 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 2800 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 2801 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 2802 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 2803 goto error_out; 2804 if (ctl_reg_id > LPFC_CTL_MAX) 2805 goto error_out; 2806 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 2807 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 2808 goto error_out; 2809 if ((ctl_reg_id > LPFC_CTL_MAX) && 2810 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 2811 goto error_out; 2812 } else 2813 goto error_out; 2814 2815 /* Perform the write access operation */ 2816 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 2817 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 2818 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 2819 switch (ctl_reg_id) { 2820 case LPFC_CTL_PORT_SEM: 2821 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 2822 LPFC_CTL_PORT_SEM_OFFSET; 2823 break; 2824 case LPFC_CTL_PORT_STA: 2825 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 2826 LPFC_CTL_PORT_STA_OFFSET; 2827 break; 2828 case LPFC_CTL_PORT_CTL: 2829 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 2830 LPFC_CTL_PORT_CTL_OFFSET; 2831 break; 2832 case LPFC_CTL_PORT_ER1: 2833 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 2834 LPFC_CTL_PORT_ER1_OFFSET; 2835 break; 2836 case LPFC_CTL_PORT_ER2: 2837 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 2838 LPFC_CTL_PORT_ER2_OFFSET; 2839 break; 2840 case LPFC_CTL_PDEV_CTL: 2841 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 2842 LPFC_CTL_PDEV_CTL_OFFSET; 2843 break; 2844 default: 2845 goto error_out; 2846 } 2847 2848 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 2849 reg_val = value; 2850 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 2851 reg_val = readl(ctl_reg); 2852 reg_val |= value; 2853 } 2854 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 2855 reg_val = readl(ctl_reg); 2856 reg_val &= ~value; 2857 } 2858 writel(reg_val, ctl_reg); 2859 readl(ctl_reg); /* flush */ 2860 } 2861 return nbytes; 2862 2863 error_out: 2864 /* Clean out command structure on command error out */ 2865 memset(&idiag, 0, sizeof(idiag)); 2866 return -EINVAL; 2867 } 2868 2869 /** 2870 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 2871 * @phba: Pointer to HBA context object. 2872 * @pbuffer: Pointer to data buffer. 2873 * 2874 * Description: 2875 * This routine gets the driver mailbox access debugfs setup information. 2876 * 2877 * Returns: 2878 * This function returns the amount of data that was read (this could be less 2879 * than @nbytes if the end of the file was reached) or a negative error value. 2880 **/ 2881 static int 2882 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 2883 { 2884 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 2885 int len = 0; 2886 2887 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 2888 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 2889 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 2890 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 2891 2892 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 2893 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 2894 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 2895 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 2896 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 2897 "mbx_word_cnt: %04d\n", mbx_word_cnt); 2898 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 2899 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 2900 2901 return len; 2902 } 2903 2904 /** 2905 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 2906 * @file: The file pointer to read from. 2907 * @buf: The buffer to copy the data to. 2908 * @nbytes: The number of bytes to read. 2909 * @ppos: The position in the file to start reading from. 2910 * 2911 * Description: 2912 * This routine reads data from the @phba driver mailbox access debugfs setup 2913 * information. 2914 * 2915 * Returns: 2916 * This function returns the amount of data that was read (this could be less 2917 * than @nbytes if the end of the file was reached) or a negative error value. 2918 **/ 2919 static ssize_t 2920 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 2921 loff_t *ppos) 2922 { 2923 struct lpfc_debug *debug = file->private_data; 2924 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2925 char *pbuffer; 2926 int len = 0; 2927 2928 /* This is a user read operation */ 2929 debug->op = LPFC_IDIAG_OP_RD; 2930 2931 if (!debug->buffer) 2932 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 2933 if (!debug->buffer) 2934 return 0; 2935 pbuffer = debug->buffer; 2936 2937 if (*ppos) 2938 return 0; 2939 2940 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 2941 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 2942 return 0; 2943 2944 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 2945 2946 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2947 } 2948 2949 /** 2950 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 2951 * @file: The file pointer to read from. 2952 * @buf: The buffer to copy the user data from. 2953 * @nbytes: The number of bytes to get. 2954 * @ppos: The position in the file to start reading from. 2955 * 2956 * This routine get the debugfs idiag command struct from user space and then 2957 * perform the syntax check for driver mailbox command (dump) and sets up the 2958 * necessary states in the idiag command struct accordingly. 2959 * 2960 * It returns the @nbytges passing in from debugfs user space when successful. 2961 * In case of error conditions, it returns proper error code back to the user 2962 * space. 2963 **/ 2964 static ssize_t 2965 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 2966 size_t nbytes, loff_t *ppos) 2967 { 2968 struct lpfc_debug *debug = file->private_data; 2969 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 2970 int rc; 2971 2972 /* This is a user write operation */ 2973 debug->op = LPFC_IDIAG_OP_WR; 2974 2975 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2976 if (rc < 0) 2977 return rc; 2978 2979 /* Sanity check on command line arguments */ 2980 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 2981 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 2982 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 2983 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 2984 2985 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 2986 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 2987 goto error_out; 2988 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 2989 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 2990 goto error_out; 2991 if (mbx_word_cnt > sizeof(MAILBOX_t)) 2992 goto error_out; 2993 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 2994 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 2995 goto error_out; 2996 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 2997 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 2998 goto error_out; 2999 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 3000 goto error_out; 3001 if (mbx_mbox_cmd != 0x9b) 3002 goto error_out; 3003 } else 3004 goto error_out; 3005 3006 if (mbx_word_cnt == 0) 3007 goto error_out; 3008 if (rc != LPFC_MBX_DMP_ARG) 3009 goto error_out; 3010 if (mbx_mbox_cmd & ~0xff) 3011 goto error_out; 3012 3013 /* condition for stop mailbox dump */ 3014 if (mbx_dump_cnt == 0) 3015 goto reset_out; 3016 3017 return nbytes; 3018 3019 reset_out: 3020 /* Clean out command structure on command error out */ 3021 memset(&idiag, 0, sizeof(idiag)); 3022 return nbytes; 3023 3024 error_out: 3025 /* Clean out command structure on command error out */ 3026 memset(&idiag, 0, sizeof(idiag)); 3027 return -EINVAL; 3028 } 3029 3030 /** 3031 * lpfc_idiag_extacc_avail_get - get the available extents information 3032 * @phba: pointer to lpfc hba data structure. 3033 * @pbuffer: pointer to internal buffer. 3034 * @len: length into the internal buffer data has been copied. 3035 * 3036 * Description: 3037 * This routine is to get the available extent information. 3038 * 3039 * Returns: 3040 * overall lenth of the data read into the internal buffer. 3041 **/ 3042 static int 3043 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 3044 { 3045 uint16_t ext_cnt, ext_size; 3046 3047 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3048 "\nAvailable Extents Information:\n"); 3049 3050 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3051 "\tPort Available VPI extents: "); 3052 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 3053 &ext_cnt, &ext_size); 3054 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3055 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3056 3057 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3058 "\tPort Available VFI extents: "); 3059 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 3060 &ext_cnt, &ext_size); 3061 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3062 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3063 3064 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3065 "\tPort Available RPI extents: "); 3066 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 3067 &ext_cnt, &ext_size); 3068 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3069 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3070 3071 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3072 "\tPort Available XRI extents: "); 3073 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 3074 &ext_cnt, &ext_size); 3075 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3076 "Count %3d, Size %3d\n", ext_cnt, ext_size); 3077 3078 return len; 3079 } 3080 3081 /** 3082 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 3083 * @phba: pointer to lpfc hba data structure. 3084 * @pbuffer: pointer to internal buffer. 3085 * @len: length into the internal buffer data has been copied. 3086 * 3087 * Description: 3088 * This routine is to get the allocated extent information. 3089 * 3090 * Returns: 3091 * overall lenth of the data read into the internal buffer. 3092 **/ 3093 static int 3094 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 3095 { 3096 uint16_t ext_cnt, ext_size; 3097 int rc; 3098 3099 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3100 "\nAllocated Extents Information:\n"); 3101 3102 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3103 "\tHost Allocated VPI extents: "); 3104 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 3105 &ext_cnt, &ext_size); 3106 if (!rc) 3107 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3108 "Port %d Extent %3d, Size %3d\n", 3109 phba->brd_no, ext_cnt, ext_size); 3110 else 3111 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3112 "N/A\n"); 3113 3114 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3115 "\tHost Allocated VFI extents: "); 3116 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 3117 &ext_cnt, &ext_size); 3118 if (!rc) 3119 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3120 "Port %d Extent %3d, Size %3d\n", 3121 phba->brd_no, ext_cnt, ext_size); 3122 else 3123 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3124 "N/A\n"); 3125 3126 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3127 "\tHost Allocated RPI extents: "); 3128 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 3129 &ext_cnt, &ext_size); 3130 if (!rc) 3131 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3132 "Port %d Extent %3d, Size %3d\n", 3133 phba->brd_no, ext_cnt, ext_size); 3134 else 3135 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3136 "N/A\n"); 3137 3138 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3139 "\tHost Allocated XRI extents: "); 3140 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 3141 &ext_cnt, &ext_size); 3142 if (!rc) 3143 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3144 "Port %d Extent %3d, Size %3d\n", 3145 phba->brd_no, ext_cnt, ext_size); 3146 else 3147 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3148 "N/A\n"); 3149 3150 return len; 3151 } 3152 3153 /** 3154 * lpfc_idiag_extacc_drivr_get - get driver extent information 3155 * @phba: pointer to lpfc hba data structure. 3156 * @pbuffer: pointer to internal buffer. 3157 * @len: length into the internal buffer data has been copied. 3158 * 3159 * Description: 3160 * This routine is to get the driver extent information. 3161 * 3162 * Returns: 3163 * overall lenth of the data read into the internal buffer. 3164 **/ 3165 static int 3166 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 3167 { 3168 struct lpfc_rsrc_blks *rsrc_blks; 3169 int index; 3170 3171 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3172 "\nDriver Extents Information:\n"); 3173 3174 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3175 "\tVPI extents:\n"); 3176 index = 0; 3177 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 3178 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3179 "\t\tBlock %3d: Start %4d, Count %4d\n", 3180 index, rsrc_blks->rsrc_start, 3181 rsrc_blks->rsrc_size); 3182 index++; 3183 } 3184 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3185 "\tVFI extents:\n"); 3186 index = 0; 3187 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 3188 list) { 3189 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3190 "\t\tBlock %3d: Start %4d, Count %4d\n", 3191 index, rsrc_blks->rsrc_start, 3192 rsrc_blks->rsrc_size); 3193 index++; 3194 } 3195 3196 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3197 "\tRPI extents:\n"); 3198 index = 0; 3199 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 3200 list) { 3201 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3202 "\t\tBlock %3d: Start %4d, Count %4d\n", 3203 index, rsrc_blks->rsrc_start, 3204 rsrc_blks->rsrc_size); 3205 index++; 3206 } 3207 3208 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3209 "\tXRI extents:\n"); 3210 index = 0; 3211 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 3212 list) { 3213 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 3214 "\t\tBlock %3d: Start %4d, Count %4d\n", 3215 index, rsrc_blks->rsrc_start, 3216 rsrc_blks->rsrc_size); 3217 index++; 3218 } 3219 3220 return len; 3221 } 3222 3223 /** 3224 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 3225 * @file: The file pointer to read from. 3226 * @buf: The buffer to copy the user data from. 3227 * @nbytes: The number of bytes to get. 3228 * @ppos: The position in the file to start reading from. 3229 * 3230 * This routine get the debugfs idiag command struct from user space and then 3231 * perform the syntax check for extent information access commands and sets 3232 * up the necessary states in the idiag command struct accordingly. 3233 * 3234 * It returns the @nbytges passing in from debugfs user space when successful. 3235 * In case of error conditions, it returns proper error code back to the user 3236 * space. 3237 **/ 3238 static ssize_t 3239 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 3240 size_t nbytes, loff_t *ppos) 3241 { 3242 struct lpfc_debug *debug = file->private_data; 3243 uint32_t ext_map; 3244 int rc; 3245 3246 /* This is a user write operation */ 3247 debug->op = LPFC_IDIAG_OP_WR; 3248 3249 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3250 if (rc < 0) 3251 return rc; 3252 3253 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 3254 3255 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 3256 goto error_out; 3257 if (rc != LPFC_EXT_ACC_CMD_ARG) 3258 goto error_out; 3259 if (!(ext_map & LPFC_EXT_ACC_ALL)) 3260 goto error_out; 3261 3262 return nbytes; 3263 error_out: 3264 /* Clean out command structure on command error out */ 3265 memset(&idiag, 0, sizeof(idiag)); 3266 return -EINVAL; 3267 } 3268 3269 /** 3270 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 3271 * @file: The file pointer to read from. 3272 * @buf: The buffer to copy the data to. 3273 * @nbytes: The number of bytes to read. 3274 * @ppos: The position in the file to start reading from. 3275 * 3276 * Description: 3277 * This routine reads data from the proper extent information according to 3278 * the idiag command, and copies to user @buf. 3279 * 3280 * Returns: 3281 * This function returns the amount of data that was read (this could be less 3282 * than @nbytes if the end of the file was reached) or a negative error value. 3283 **/ 3284 static ssize_t 3285 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 3286 loff_t *ppos) 3287 { 3288 struct lpfc_debug *debug = file->private_data; 3289 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3290 char *pbuffer; 3291 uint32_t ext_map; 3292 int len = 0; 3293 3294 /* This is a user read operation */ 3295 debug->op = LPFC_IDIAG_OP_RD; 3296 3297 if (!debug->buffer) 3298 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 3299 if (!debug->buffer) 3300 return 0; 3301 pbuffer = debug->buffer; 3302 if (*ppos) 3303 return 0; 3304 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 3305 return 0; 3306 3307 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 3308 if (ext_map & LPFC_EXT_ACC_AVAIL) 3309 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 3310 if (ext_map & LPFC_EXT_ACC_ALLOC) 3311 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 3312 if (ext_map & LPFC_EXT_ACC_DRIVR) 3313 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 3314 3315 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3316 } 3317 3318 #undef lpfc_debugfs_op_disc_trc 3319 static const struct file_operations lpfc_debugfs_op_disc_trc = { 3320 .owner = THIS_MODULE, 3321 .open = lpfc_debugfs_disc_trc_open, 3322 .llseek = lpfc_debugfs_lseek, 3323 .read = lpfc_debugfs_read, 3324 .release = lpfc_debugfs_release, 3325 }; 3326 3327 #undef lpfc_debugfs_op_nodelist 3328 static const struct file_operations lpfc_debugfs_op_nodelist = { 3329 .owner = THIS_MODULE, 3330 .open = lpfc_debugfs_nodelist_open, 3331 .llseek = lpfc_debugfs_lseek, 3332 .read = lpfc_debugfs_read, 3333 .release = lpfc_debugfs_release, 3334 }; 3335 3336 #undef lpfc_debugfs_op_hbqinfo 3337 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 3338 .owner = THIS_MODULE, 3339 .open = lpfc_debugfs_hbqinfo_open, 3340 .llseek = lpfc_debugfs_lseek, 3341 .read = lpfc_debugfs_read, 3342 .release = lpfc_debugfs_release, 3343 }; 3344 3345 #undef lpfc_debugfs_op_dumpHBASlim 3346 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 3347 .owner = THIS_MODULE, 3348 .open = lpfc_debugfs_dumpHBASlim_open, 3349 .llseek = lpfc_debugfs_lseek, 3350 .read = lpfc_debugfs_read, 3351 .release = lpfc_debugfs_release, 3352 }; 3353 3354 #undef lpfc_debugfs_op_dumpHostSlim 3355 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 3356 .owner = THIS_MODULE, 3357 .open = lpfc_debugfs_dumpHostSlim_open, 3358 .llseek = lpfc_debugfs_lseek, 3359 .read = lpfc_debugfs_read, 3360 .release = lpfc_debugfs_release, 3361 }; 3362 3363 #undef lpfc_debugfs_op_dumpData 3364 static const struct file_operations lpfc_debugfs_op_dumpData = { 3365 .owner = THIS_MODULE, 3366 .open = lpfc_debugfs_dumpData_open, 3367 .llseek = lpfc_debugfs_lseek, 3368 .read = lpfc_debugfs_read, 3369 .write = lpfc_debugfs_dumpDataDif_write, 3370 .release = lpfc_debugfs_dumpDataDif_release, 3371 }; 3372 3373 #undef lpfc_debugfs_op_dumpDif 3374 static const struct file_operations lpfc_debugfs_op_dumpDif = { 3375 .owner = THIS_MODULE, 3376 .open = lpfc_debugfs_dumpDif_open, 3377 .llseek = lpfc_debugfs_lseek, 3378 .read = lpfc_debugfs_read, 3379 .write = lpfc_debugfs_dumpDataDif_write, 3380 .release = lpfc_debugfs_dumpDataDif_release, 3381 }; 3382 3383 #undef lpfc_debugfs_op_slow_ring_trc 3384 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 3385 .owner = THIS_MODULE, 3386 .open = lpfc_debugfs_slow_ring_trc_open, 3387 .llseek = lpfc_debugfs_lseek, 3388 .read = lpfc_debugfs_read, 3389 .release = lpfc_debugfs_release, 3390 }; 3391 3392 static struct dentry *lpfc_debugfs_root = NULL; 3393 static atomic_t lpfc_debugfs_hba_count; 3394 3395 /* 3396 * File operations for the iDiag debugfs 3397 */ 3398 #undef lpfc_idiag_op_pciCfg 3399 static const struct file_operations lpfc_idiag_op_pciCfg = { 3400 .owner = THIS_MODULE, 3401 .open = lpfc_idiag_open, 3402 .llseek = lpfc_debugfs_lseek, 3403 .read = lpfc_idiag_pcicfg_read, 3404 .write = lpfc_idiag_pcicfg_write, 3405 .release = lpfc_idiag_cmd_release, 3406 }; 3407 3408 #undef lpfc_idiag_op_barAcc 3409 static const struct file_operations lpfc_idiag_op_barAcc = { 3410 .owner = THIS_MODULE, 3411 .open = lpfc_idiag_open, 3412 .llseek = lpfc_debugfs_lseek, 3413 .read = lpfc_idiag_baracc_read, 3414 .write = lpfc_idiag_baracc_write, 3415 .release = lpfc_idiag_cmd_release, 3416 }; 3417 3418 #undef lpfc_idiag_op_queInfo 3419 static const struct file_operations lpfc_idiag_op_queInfo = { 3420 .owner = THIS_MODULE, 3421 .open = lpfc_idiag_open, 3422 .read = lpfc_idiag_queinfo_read, 3423 .release = lpfc_idiag_release, 3424 }; 3425 3426 #undef lpfc_idiag_op_queAcc 3427 static const struct file_operations lpfc_idiag_op_queAcc = { 3428 .owner = THIS_MODULE, 3429 .open = lpfc_idiag_open, 3430 .llseek = lpfc_debugfs_lseek, 3431 .read = lpfc_idiag_queacc_read, 3432 .write = lpfc_idiag_queacc_write, 3433 .release = lpfc_idiag_cmd_release, 3434 }; 3435 3436 #undef lpfc_idiag_op_drbAcc 3437 static const struct file_operations lpfc_idiag_op_drbAcc = { 3438 .owner = THIS_MODULE, 3439 .open = lpfc_idiag_open, 3440 .llseek = lpfc_debugfs_lseek, 3441 .read = lpfc_idiag_drbacc_read, 3442 .write = lpfc_idiag_drbacc_write, 3443 .release = lpfc_idiag_cmd_release, 3444 }; 3445 3446 #undef lpfc_idiag_op_ctlAcc 3447 static const struct file_operations lpfc_idiag_op_ctlAcc = { 3448 .owner = THIS_MODULE, 3449 .open = lpfc_idiag_open, 3450 .llseek = lpfc_debugfs_lseek, 3451 .read = lpfc_idiag_ctlacc_read, 3452 .write = lpfc_idiag_ctlacc_write, 3453 .release = lpfc_idiag_cmd_release, 3454 }; 3455 3456 #undef lpfc_idiag_op_mbxAcc 3457 static const struct file_operations lpfc_idiag_op_mbxAcc = { 3458 .owner = THIS_MODULE, 3459 .open = lpfc_idiag_open, 3460 .llseek = lpfc_debugfs_lseek, 3461 .read = lpfc_idiag_mbxacc_read, 3462 .write = lpfc_idiag_mbxacc_write, 3463 .release = lpfc_idiag_cmd_release, 3464 }; 3465 3466 #undef lpfc_idiag_op_extAcc 3467 static const struct file_operations lpfc_idiag_op_extAcc = { 3468 .owner = THIS_MODULE, 3469 .open = lpfc_idiag_open, 3470 .llseek = lpfc_debugfs_lseek, 3471 .read = lpfc_idiag_extacc_read, 3472 .write = lpfc_idiag_extacc_write, 3473 .release = lpfc_idiag_cmd_release, 3474 }; 3475 3476 #endif 3477 3478 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 3479 * @phba: Pointer to HBA context object. 3480 * @dmabuf: Pointer to a DMA buffer descriptor. 3481 * 3482 * Description: 3483 * This routine dump a bsg pass-through non-embedded mailbox command with 3484 * external buffer. 3485 **/ 3486 void 3487 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 3488 enum mbox_type mbox_tp, enum dma_type dma_tp, 3489 enum sta_type sta_tp, 3490 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 3491 { 3492 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3493 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 3494 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 3495 int len = 0; 3496 uint32_t do_dump = 0; 3497 uint32_t *pword; 3498 uint32_t i; 3499 3500 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 3501 return; 3502 3503 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3504 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3505 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3506 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3507 3508 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 3509 (*mbx_dump_cnt == 0) || 3510 (*mbx_word_cnt == 0)) 3511 return; 3512 3513 if (*mbx_mbox_cmd != 0x9B) 3514 return; 3515 3516 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 3517 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 3518 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 3519 printk(KERN_ERR "\nRead mbox command (x%x), " 3520 "nemb:0x%x, extbuf_cnt:%d:\n", 3521 sta_tp, nemb_tp, ext_buf); 3522 } 3523 } 3524 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 3525 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 3526 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 3527 printk(KERN_ERR "\nRead mbox buffer (x%x), " 3528 "nemb:0x%x, extbuf_seq:%d:\n", 3529 sta_tp, nemb_tp, ext_buf); 3530 } 3531 } 3532 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 3533 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 3534 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 3535 printk(KERN_ERR "\nWrite mbox command (x%x), " 3536 "nemb:0x%x, extbuf_cnt:%d:\n", 3537 sta_tp, nemb_tp, ext_buf); 3538 } 3539 } 3540 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 3541 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 3542 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 3543 printk(KERN_ERR "\nWrite mbox buffer (x%x), " 3544 "nemb:0x%x, extbuf_seq:%d:\n", 3545 sta_tp, nemb_tp, ext_buf); 3546 } 3547 } 3548 3549 /* dump buffer content */ 3550 if (do_dump) { 3551 pword = (uint32_t *)dmabuf->virt; 3552 for (i = 0; i < *mbx_word_cnt; i++) { 3553 if (!(i % 8)) { 3554 if (i != 0) 3555 printk(KERN_ERR "%s\n", line_buf); 3556 len = 0; 3557 len += snprintf(line_buf+len, 3558 LPFC_MBX_ACC_LBUF_SZ-len, 3559 "%03d: ", i); 3560 } 3561 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 3562 "%08x ", (uint32_t)*pword); 3563 pword++; 3564 } 3565 if ((i - 1) % 8) 3566 printk(KERN_ERR "%s\n", line_buf); 3567 (*mbx_dump_cnt)--; 3568 } 3569 3570 /* Clean out command structure on reaching dump count */ 3571 if (*mbx_dump_cnt == 0) 3572 memset(&idiag, 0, sizeof(idiag)); 3573 return; 3574 #endif 3575 } 3576 3577 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 3578 * @phba: Pointer to HBA context object. 3579 * @dmabuf: Pointer to a DMA buffer descriptor. 3580 * 3581 * Description: 3582 * This routine dump a pass-through non-embedded mailbox command from issue 3583 * mailbox command. 3584 **/ 3585 void 3586 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 3587 { 3588 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3589 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 3590 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 3591 int len = 0; 3592 uint32_t *pword; 3593 uint8_t *pbyte; 3594 uint32_t i, j; 3595 3596 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 3597 return; 3598 3599 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 3600 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 3601 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 3602 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 3603 3604 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 3605 (*mbx_dump_cnt == 0) || 3606 (*mbx_word_cnt == 0)) 3607 return; 3608 3609 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 3610 (*mbx_mbox_cmd != pmbox->mbxCommand)) 3611 return; 3612 3613 /* dump buffer content */ 3614 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 3615 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n", 3616 pmbox->mbxCommand); 3617 pword = (uint32_t *)pmbox; 3618 for (i = 0; i < *mbx_word_cnt; i++) { 3619 if (!(i % 8)) { 3620 if (i != 0) 3621 printk(KERN_ERR "%s\n", line_buf); 3622 len = 0; 3623 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 3624 len += snprintf(line_buf+len, 3625 LPFC_MBX_ACC_LBUF_SZ-len, 3626 "%03d: ", i); 3627 } 3628 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 3629 "%08x ", 3630 ((uint32_t)*pword) & 0xffffffff); 3631 pword++; 3632 } 3633 if ((i - 1) % 8) 3634 printk(KERN_ERR "%s\n", line_buf); 3635 printk(KERN_ERR "\n"); 3636 } 3637 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 3638 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n", 3639 pmbox->mbxCommand); 3640 pbyte = (uint8_t *)pmbox; 3641 for (i = 0; i < *mbx_word_cnt; i++) { 3642 if (!(i % 8)) { 3643 if (i != 0) 3644 printk(KERN_ERR "%s\n", line_buf); 3645 len = 0; 3646 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 3647 len += snprintf(line_buf+len, 3648 LPFC_MBX_ACC_LBUF_SZ-len, 3649 "%03d: ", i); 3650 } 3651 for (j = 0; j < 4; j++) { 3652 len += snprintf(line_buf+len, 3653 LPFC_MBX_ACC_LBUF_SZ-len, 3654 "%02x", 3655 ((uint8_t)*pbyte) & 0xff); 3656 pbyte++; 3657 } 3658 len += snprintf(line_buf+len, 3659 LPFC_MBX_ACC_LBUF_SZ-len, " "); 3660 } 3661 if ((i - 1) % 8) 3662 printk(KERN_ERR "%s\n", line_buf); 3663 printk(KERN_ERR "\n"); 3664 } 3665 (*mbx_dump_cnt)--; 3666 3667 /* Clean out command structure on reaching dump count */ 3668 if (*mbx_dump_cnt == 0) 3669 memset(&idiag, 0, sizeof(idiag)); 3670 return; 3671 #endif 3672 } 3673 3674 /** 3675 * lpfc_debugfs_initialize - Initialize debugfs for a vport 3676 * @vport: The vport pointer to initialize. 3677 * 3678 * Description: 3679 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 3680 * If not already created, this routine will create the lpfc directory, and 3681 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 3682 * also create each file used to access lpfc specific debugfs information. 3683 **/ 3684 inline void 3685 lpfc_debugfs_initialize(struct lpfc_vport *vport) 3686 { 3687 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 3688 struct lpfc_hba *phba = vport->phba; 3689 char name[64]; 3690 uint32_t num, i; 3691 3692 if (!lpfc_debugfs_enable) 3693 return; 3694 3695 /* Setup lpfc root directory */ 3696 if (!lpfc_debugfs_root) { 3697 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 3698 atomic_set(&lpfc_debugfs_hba_count, 0); 3699 if (!lpfc_debugfs_root) { 3700 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3701 "0408 Cannot create debugfs root\n"); 3702 goto debug_failed; 3703 } 3704 } 3705 if (!lpfc_debugfs_start_time) 3706 lpfc_debugfs_start_time = jiffies; 3707 3708 /* Setup funcX directory for specific HBA PCI function */ 3709 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 3710 if (!phba->hba_debugfs_root) { 3711 phba->hba_debugfs_root = 3712 debugfs_create_dir(name, lpfc_debugfs_root); 3713 if (!phba->hba_debugfs_root) { 3714 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3715 "0412 Cannot create debugfs hba\n"); 3716 goto debug_failed; 3717 } 3718 atomic_inc(&lpfc_debugfs_hba_count); 3719 atomic_set(&phba->debugfs_vport_count, 0); 3720 3721 /* Setup hbqinfo */ 3722 snprintf(name, sizeof(name), "hbqinfo"); 3723 phba->debug_hbqinfo = 3724 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3725 phba->hba_debugfs_root, 3726 phba, &lpfc_debugfs_op_hbqinfo); 3727 if (!phba->debug_hbqinfo) { 3728 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3729 "0411 Cannot create debugfs hbqinfo\n"); 3730 goto debug_failed; 3731 } 3732 3733 /* Setup dumpHBASlim */ 3734 if (phba->sli_rev < LPFC_SLI_REV4) { 3735 snprintf(name, sizeof(name), "dumpHBASlim"); 3736 phba->debug_dumpHBASlim = 3737 debugfs_create_file(name, 3738 S_IFREG|S_IRUGO|S_IWUSR, 3739 phba->hba_debugfs_root, 3740 phba, &lpfc_debugfs_op_dumpHBASlim); 3741 if (!phba->debug_dumpHBASlim) { 3742 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3743 "0413 Cannot create debugfs " 3744 "dumpHBASlim\n"); 3745 goto debug_failed; 3746 } 3747 } else 3748 phba->debug_dumpHBASlim = NULL; 3749 3750 /* Setup dumpHostSlim */ 3751 if (phba->sli_rev < LPFC_SLI_REV4) { 3752 snprintf(name, sizeof(name), "dumpHostSlim"); 3753 phba->debug_dumpHostSlim = 3754 debugfs_create_file(name, 3755 S_IFREG|S_IRUGO|S_IWUSR, 3756 phba->hba_debugfs_root, 3757 phba, &lpfc_debugfs_op_dumpHostSlim); 3758 if (!phba->debug_dumpHostSlim) { 3759 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3760 "0414 Cannot create debugfs " 3761 "dumpHostSlim\n"); 3762 goto debug_failed; 3763 } 3764 } else 3765 phba->debug_dumpHBASlim = NULL; 3766 3767 /* Setup dumpData */ 3768 snprintf(name, sizeof(name), "dumpData"); 3769 phba->debug_dumpData = 3770 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3771 phba->hba_debugfs_root, 3772 phba, &lpfc_debugfs_op_dumpData); 3773 if (!phba->debug_dumpData) { 3774 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3775 "0800 Cannot create debugfs dumpData\n"); 3776 goto debug_failed; 3777 } 3778 3779 /* Setup dumpDif */ 3780 snprintf(name, sizeof(name), "dumpDif"); 3781 phba->debug_dumpDif = 3782 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3783 phba->hba_debugfs_root, 3784 phba, &lpfc_debugfs_op_dumpDif); 3785 if (!phba->debug_dumpDif) { 3786 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3787 "0801 Cannot create debugfs dumpDif\n"); 3788 goto debug_failed; 3789 } 3790 3791 /* Setup slow ring trace */ 3792 if (lpfc_debugfs_max_slow_ring_trc) { 3793 num = lpfc_debugfs_max_slow_ring_trc - 1; 3794 if (num & lpfc_debugfs_max_slow_ring_trc) { 3795 /* Change to be a power of 2 */ 3796 num = lpfc_debugfs_max_slow_ring_trc; 3797 i = 0; 3798 while (num > 1) { 3799 num = num >> 1; 3800 i++; 3801 } 3802 lpfc_debugfs_max_slow_ring_trc = (1 << i); 3803 printk(KERN_ERR 3804 "lpfc_debugfs_max_disc_trc changed to " 3805 "%d\n", lpfc_debugfs_max_disc_trc); 3806 } 3807 } 3808 3809 snprintf(name, sizeof(name), "slow_ring_trace"); 3810 phba->debug_slow_ring_trc = 3811 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3812 phba->hba_debugfs_root, 3813 phba, &lpfc_debugfs_op_slow_ring_trc); 3814 if (!phba->debug_slow_ring_trc) { 3815 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3816 "0415 Cannot create debugfs " 3817 "slow_ring_trace\n"); 3818 goto debug_failed; 3819 } 3820 if (!phba->slow_ring_trc) { 3821 phba->slow_ring_trc = kmalloc( 3822 (sizeof(struct lpfc_debugfs_trc) * 3823 lpfc_debugfs_max_slow_ring_trc), 3824 GFP_KERNEL); 3825 if (!phba->slow_ring_trc) { 3826 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3827 "0416 Cannot create debugfs " 3828 "slow_ring buffer\n"); 3829 goto debug_failed; 3830 } 3831 atomic_set(&phba->slow_ring_trc_cnt, 0); 3832 memset(phba->slow_ring_trc, 0, 3833 (sizeof(struct lpfc_debugfs_trc) * 3834 lpfc_debugfs_max_slow_ring_trc)); 3835 } 3836 } 3837 3838 snprintf(name, sizeof(name), "vport%d", vport->vpi); 3839 if (!vport->vport_debugfs_root) { 3840 vport->vport_debugfs_root = 3841 debugfs_create_dir(name, phba->hba_debugfs_root); 3842 if (!vport->vport_debugfs_root) { 3843 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3844 "0417 Can't create debugfs\n"); 3845 goto debug_failed; 3846 } 3847 atomic_inc(&phba->debugfs_vport_count); 3848 } 3849 3850 if (lpfc_debugfs_max_disc_trc) { 3851 num = lpfc_debugfs_max_disc_trc - 1; 3852 if (num & lpfc_debugfs_max_disc_trc) { 3853 /* Change to be a power of 2 */ 3854 num = lpfc_debugfs_max_disc_trc; 3855 i = 0; 3856 while (num > 1) { 3857 num = num >> 1; 3858 i++; 3859 } 3860 lpfc_debugfs_max_disc_trc = (1 << i); 3861 printk(KERN_ERR 3862 "lpfc_debugfs_max_disc_trc changed to %d\n", 3863 lpfc_debugfs_max_disc_trc); 3864 } 3865 } 3866 3867 vport->disc_trc = kzalloc( 3868 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 3869 GFP_KERNEL); 3870 3871 if (!vport->disc_trc) { 3872 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3873 "0418 Cannot create debugfs disc trace " 3874 "buffer\n"); 3875 goto debug_failed; 3876 } 3877 atomic_set(&vport->disc_trc_cnt, 0); 3878 3879 snprintf(name, sizeof(name), "discovery_trace"); 3880 vport->debug_disc_trc = 3881 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3882 vport->vport_debugfs_root, 3883 vport, &lpfc_debugfs_op_disc_trc); 3884 if (!vport->debug_disc_trc) { 3885 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3886 "0419 Cannot create debugfs " 3887 "discovery_trace\n"); 3888 goto debug_failed; 3889 } 3890 snprintf(name, sizeof(name), "nodelist"); 3891 vport->debug_nodelist = 3892 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3893 vport->vport_debugfs_root, 3894 vport, &lpfc_debugfs_op_nodelist); 3895 if (!vport->debug_nodelist) { 3896 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3897 "2985 Can't create debugfs nodelist\n"); 3898 goto debug_failed; 3899 } 3900 3901 /* 3902 * iDiag debugfs root entry points for SLI4 device only 3903 */ 3904 if (phba->sli_rev < LPFC_SLI_REV4) 3905 goto debug_failed; 3906 3907 snprintf(name, sizeof(name), "iDiag"); 3908 if (!phba->idiag_root) { 3909 phba->idiag_root = 3910 debugfs_create_dir(name, phba->hba_debugfs_root); 3911 if (!phba->idiag_root) { 3912 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3913 "2922 Can't create idiag debugfs\n"); 3914 goto debug_failed; 3915 } 3916 /* Initialize iDiag data structure */ 3917 memset(&idiag, 0, sizeof(idiag)); 3918 } 3919 3920 /* iDiag read PCI config space */ 3921 snprintf(name, sizeof(name), "pciCfg"); 3922 if (!phba->idiag_pci_cfg) { 3923 phba->idiag_pci_cfg = 3924 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3925 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 3926 if (!phba->idiag_pci_cfg) { 3927 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3928 "2923 Can't create idiag debugfs\n"); 3929 goto debug_failed; 3930 } 3931 idiag.offset.last_rd = 0; 3932 } 3933 3934 /* iDiag PCI BAR access */ 3935 snprintf(name, sizeof(name), "barAcc"); 3936 if (!phba->idiag_bar_acc) { 3937 phba->idiag_bar_acc = 3938 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3939 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 3940 if (!phba->idiag_bar_acc) { 3941 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3942 "3056 Can't create idiag debugfs\n"); 3943 goto debug_failed; 3944 } 3945 idiag.offset.last_rd = 0; 3946 } 3947 3948 /* iDiag get PCI function queue information */ 3949 snprintf(name, sizeof(name), "queInfo"); 3950 if (!phba->idiag_que_info) { 3951 phba->idiag_que_info = 3952 debugfs_create_file(name, S_IFREG|S_IRUGO, 3953 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 3954 if (!phba->idiag_que_info) { 3955 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3956 "2924 Can't create idiag debugfs\n"); 3957 goto debug_failed; 3958 } 3959 } 3960 3961 /* iDiag access PCI function queue */ 3962 snprintf(name, sizeof(name), "queAcc"); 3963 if (!phba->idiag_que_acc) { 3964 phba->idiag_que_acc = 3965 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3966 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 3967 if (!phba->idiag_que_acc) { 3968 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3969 "2926 Can't create idiag debugfs\n"); 3970 goto debug_failed; 3971 } 3972 } 3973 3974 /* iDiag access PCI function doorbell registers */ 3975 snprintf(name, sizeof(name), "drbAcc"); 3976 if (!phba->idiag_drb_acc) { 3977 phba->idiag_drb_acc = 3978 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3979 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 3980 if (!phba->idiag_drb_acc) { 3981 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3982 "2927 Can't create idiag debugfs\n"); 3983 goto debug_failed; 3984 } 3985 } 3986 3987 /* iDiag access PCI function control registers */ 3988 snprintf(name, sizeof(name), "ctlAcc"); 3989 if (!phba->idiag_ctl_acc) { 3990 phba->idiag_ctl_acc = 3991 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 3992 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 3993 if (!phba->idiag_ctl_acc) { 3994 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3995 "2981 Can't create idiag debugfs\n"); 3996 goto debug_failed; 3997 } 3998 } 3999 4000 /* iDiag access mbox commands */ 4001 snprintf(name, sizeof(name), "mbxAcc"); 4002 if (!phba->idiag_mbx_acc) { 4003 phba->idiag_mbx_acc = 4004 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 4005 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 4006 if (!phba->idiag_mbx_acc) { 4007 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4008 "2980 Can't create idiag debugfs\n"); 4009 goto debug_failed; 4010 } 4011 } 4012 4013 /* iDiag extents access commands */ 4014 if (phba->sli4_hba.extents_in_use) { 4015 snprintf(name, sizeof(name), "extAcc"); 4016 if (!phba->idiag_ext_acc) { 4017 phba->idiag_ext_acc = 4018 debugfs_create_file(name, 4019 S_IFREG|S_IRUGO|S_IWUSR, 4020 phba->idiag_root, phba, 4021 &lpfc_idiag_op_extAcc); 4022 if (!phba->idiag_ext_acc) { 4023 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4024 "2986 Cant create " 4025 "idiag debugfs\n"); 4026 goto debug_failed; 4027 } 4028 } 4029 } 4030 4031 debug_failed: 4032 return; 4033 #endif 4034 } 4035 4036 /** 4037 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 4038 * @vport: The vport pointer to remove from debugfs. 4039 * 4040 * Description: 4041 * When Debugfs is configured this routine removes debugfs file system elements 4042 * that are specific to this vport. It also checks to see if there are any 4043 * users left for the debugfs directories associated with the HBA and driver. If 4044 * this is the last user of the HBA directory or driver directory then it will 4045 * remove those from the debugfs infrastructure as well. 4046 **/ 4047 inline void 4048 lpfc_debugfs_terminate(struct lpfc_vport *vport) 4049 { 4050 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4051 struct lpfc_hba *phba = vport->phba; 4052 4053 if (vport->disc_trc) { 4054 kfree(vport->disc_trc); 4055 vport->disc_trc = NULL; 4056 } 4057 if (vport->debug_disc_trc) { 4058 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 4059 vport->debug_disc_trc = NULL; 4060 } 4061 if (vport->debug_nodelist) { 4062 debugfs_remove(vport->debug_nodelist); /* nodelist */ 4063 vport->debug_nodelist = NULL; 4064 } 4065 if (vport->vport_debugfs_root) { 4066 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 4067 vport->vport_debugfs_root = NULL; 4068 atomic_dec(&phba->debugfs_vport_count); 4069 } 4070 if (atomic_read(&phba->debugfs_vport_count) == 0) { 4071 4072 if (phba->debug_hbqinfo) { 4073 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 4074 phba->debug_hbqinfo = NULL; 4075 } 4076 if (phba->debug_dumpHBASlim) { 4077 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 4078 phba->debug_dumpHBASlim = NULL; 4079 } 4080 if (phba->debug_dumpHostSlim) { 4081 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 4082 phba->debug_dumpHostSlim = NULL; 4083 } 4084 if (phba->debug_dumpData) { 4085 debugfs_remove(phba->debug_dumpData); /* dumpData */ 4086 phba->debug_dumpData = NULL; 4087 } 4088 4089 if (phba->debug_dumpDif) { 4090 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 4091 phba->debug_dumpDif = NULL; 4092 } 4093 4094 if (phba->slow_ring_trc) { 4095 kfree(phba->slow_ring_trc); 4096 phba->slow_ring_trc = NULL; 4097 } 4098 if (phba->debug_slow_ring_trc) { 4099 /* slow_ring_trace */ 4100 debugfs_remove(phba->debug_slow_ring_trc); 4101 phba->debug_slow_ring_trc = NULL; 4102 } 4103 4104 /* 4105 * iDiag release 4106 */ 4107 if (phba->sli_rev == LPFC_SLI_REV4) { 4108 if (phba->idiag_ext_acc) { 4109 /* iDiag extAcc */ 4110 debugfs_remove(phba->idiag_ext_acc); 4111 phba->idiag_ext_acc = NULL; 4112 } 4113 if (phba->idiag_mbx_acc) { 4114 /* iDiag mbxAcc */ 4115 debugfs_remove(phba->idiag_mbx_acc); 4116 phba->idiag_mbx_acc = NULL; 4117 } 4118 if (phba->idiag_ctl_acc) { 4119 /* iDiag ctlAcc */ 4120 debugfs_remove(phba->idiag_ctl_acc); 4121 phba->idiag_ctl_acc = NULL; 4122 } 4123 if (phba->idiag_drb_acc) { 4124 /* iDiag drbAcc */ 4125 debugfs_remove(phba->idiag_drb_acc); 4126 phba->idiag_drb_acc = NULL; 4127 } 4128 if (phba->idiag_que_acc) { 4129 /* iDiag queAcc */ 4130 debugfs_remove(phba->idiag_que_acc); 4131 phba->idiag_que_acc = NULL; 4132 } 4133 if (phba->idiag_que_info) { 4134 /* iDiag queInfo */ 4135 debugfs_remove(phba->idiag_que_info); 4136 phba->idiag_que_info = NULL; 4137 } 4138 if (phba->idiag_bar_acc) { 4139 /* iDiag barAcc */ 4140 debugfs_remove(phba->idiag_bar_acc); 4141 phba->idiag_bar_acc = NULL; 4142 } 4143 if (phba->idiag_pci_cfg) { 4144 /* iDiag pciCfg */ 4145 debugfs_remove(phba->idiag_pci_cfg); 4146 phba->idiag_pci_cfg = NULL; 4147 } 4148 4149 /* Finally remove the iDiag debugfs root */ 4150 if (phba->idiag_root) { 4151 /* iDiag root */ 4152 debugfs_remove(phba->idiag_root); 4153 phba->idiag_root = NULL; 4154 } 4155 } 4156 4157 if (phba->hba_debugfs_root) { 4158 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 4159 phba->hba_debugfs_root = NULL; 4160 atomic_dec(&lpfc_debugfs_hba_count); 4161 } 4162 4163 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 4164 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 4165 lpfc_debugfs_root = NULL; 4166 } 4167 } 4168 #endif 4169 return; 4170 } 4171