1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6 * Copyright (C) 2007-2015 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * * 10 * This program is free software; you can redistribute it and/or * 11 * modify it under the terms of version 2 of the GNU General * 12 * Public License as published by the Free Software Foundation. * 13 * This program is distributed in the hope that it will be useful. * 14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18 * TO BE LEGALLY INVALID. See the GNU General Public License for * 19 * more details, a copy of which can be found in the file COPYING * 20 * included with this package. * 21 *******************************************************************/ 22 23 #include <linux/blkdev.h> 24 #include <linux/delay.h> 25 #include <linux/module.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/kthread.h> 30 #include <linux/slab.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 35 #include <scsi/scsi.h> 36 #include <scsi/scsi_device.h> 37 #include <scsi/scsi_host.h> 38 #include <scsi/scsi_transport_fc.h> 39 #include <scsi/fc/fc_fs.h> 40 41 #include <linux/nvme-fc-driver.h> 42 43 #include "lpfc_hw4.h" 44 #include "lpfc_hw.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc_nl.h" 48 #include "lpfc_disc.h" 49 #include "lpfc.h" 50 #include "lpfc_scsi.h" 51 #include "lpfc_nvme.h" 52 #include "lpfc_nvmet.h" 53 #include "lpfc_logmsg.h" 54 #include "lpfc_crtn.h" 55 #include "lpfc_vport.h" 56 #include "lpfc_version.h" 57 #include "lpfc_compat.h" 58 #include "lpfc_debugfs.h" 59 #include "lpfc_bsg.h" 60 61 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 62 /* 63 * debugfs interface 64 * 65 * To access this interface the user should: 66 * # mount -t debugfs none /sys/kernel/debug 67 * 68 * The lpfc debugfs directory hierarchy is: 69 * /sys/kernel/debug/lpfc/fnX/vportY 70 * where X is the lpfc hba function unique_id 71 * where Y is the vport VPI on that hba 72 * 73 * Debugging services available per vport: 74 * discovery_trace 75 * This is an ACSII readable file that contains a trace of the last 76 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 77 * See lpfc_debugfs.h for different categories of discovery events. 78 * To enable the discovery trace, the following module parameters must be set: 79 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 80 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 81 * EACH vport. X MUST also be a power of 2. 82 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 83 * lpfc_debugfs.h . 84 * 85 * slow_ring_trace 86 * This is an ACSII readable file that contains a trace of the last 87 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 88 * To enable the slow ring trace, the following module parameters must be set: 89 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 90 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 91 * the HBA. X MUST also be a power of 2. 92 */ 93 static int lpfc_debugfs_enable = 1; 94 module_param(lpfc_debugfs_enable, int, S_IRUGO); 95 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 96 97 /* This MUST be a power of 2 */ 98 static int lpfc_debugfs_max_disc_trc; 99 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 100 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 101 "Set debugfs discovery trace depth"); 102 103 /* This MUST be a power of 2 */ 104 static int lpfc_debugfs_max_slow_ring_trc; 105 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 106 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 107 "Set debugfs slow ring trace depth"); 108 109 /* This MUST be a power of 2 */ 110 static int lpfc_debugfs_max_nvmeio_trc; 111 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 112 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 113 "Set debugfs NVME IO trace depth"); 114 115 static int lpfc_debugfs_mask_disc_trc; 116 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 117 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 118 "Set debugfs discovery trace mask"); 119 120 #include <linux/debugfs.h> 121 122 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 123 static unsigned long lpfc_debugfs_start_time = 0L; 124 125 /* iDiag */ 126 static struct lpfc_idiag idiag; 127 128 /** 129 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 130 * @vport: The vport to gather the log info from. 131 * @buf: The buffer to dump log into. 132 * @size: The maximum amount of data to process. 133 * 134 * Description: 135 * This routine gathers the lpfc discovery debugfs data from the @vport and 136 * dumps it to @buf up to @size number of bytes. It will start at the next entry 137 * in the log and process the log until the end of the buffer. Then it will 138 * gather from the beginning of the log and process until the current entry. 139 * 140 * Notes: 141 * Discovery logging will be disabled while while this routine dumps the log. 142 * 143 * Return Value: 144 * This routine returns the amount of bytes that were dumped into @buf and will 145 * not exceed @size. 146 **/ 147 static int 148 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 149 { 150 int i, index, len, enable; 151 uint32_t ms; 152 struct lpfc_debugfs_trc *dtp; 153 char *buffer; 154 155 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 156 if (!buffer) 157 return 0; 158 159 enable = lpfc_debugfs_enable; 160 lpfc_debugfs_enable = 0; 161 162 len = 0; 163 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 164 (lpfc_debugfs_max_disc_trc - 1); 165 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 166 dtp = vport->disc_trc + i; 167 if (!dtp->fmt) 168 continue; 169 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 170 snprintf(buffer, 171 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 172 dtp->seq_cnt, ms, dtp->fmt); 173 len += snprintf(buf+len, size-len, buffer, 174 dtp->data1, dtp->data2, dtp->data3); 175 } 176 for (i = 0; i < index; i++) { 177 dtp = vport->disc_trc + i; 178 if (!dtp->fmt) 179 continue; 180 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 181 snprintf(buffer, 182 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 183 dtp->seq_cnt, ms, dtp->fmt); 184 len += snprintf(buf+len, size-len, buffer, 185 dtp->data1, dtp->data2, dtp->data3); 186 } 187 188 lpfc_debugfs_enable = enable; 189 kfree(buffer); 190 191 return len; 192 } 193 194 /** 195 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 196 * @phba: The HBA to gather the log info from. 197 * @buf: The buffer to dump log into. 198 * @size: The maximum amount of data to process. 199 * 200 * Description: 201 * This routine gathers the lpfc slow ring debugfs data from the @phba and 202 * dumps it to @buf up to @size number of bytes. It will start at the next entry 203 * in the log and process the log until the end of the buffer. Then it will 204 * gather from the beginning of the log and process until the current entry. 205 * 206 * Notes: 207 * Slow ring logging will be disabled while while this routine dumps the log. 208 * 209 * Return Value: 210 * This routine returns the amount of bytes that were dumped into @buf and will 211 * not exceed @size. 212 **/ 213 static int 214 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 215 { 216 int i, index, len, enable; 217 uint32_t ms; 218 struct lpfc_debugfs_trc *dtp; 219 char *buffer; 220 221 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 222 if (!buffer) 223 return 0; 224 225 enable = lpfc_debugfs_enable; 226 lpfc_debugfs_enable = 0; 227 228 len = 0; 229 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 230 (lpfc_debugfs_max_slow_ring_trc - 1); 231 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 232 dtp = phba->slow_ring_trc + i; 233 if (!dtp->fmt) 234 continue; 235 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 236 snprintf(buffer, 237 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 238 dtp->seq_cnt, ms, dtp->fmt); 239 len += snprintf(buf+len, size-len, buffer, 240 dtp->data1, dtp->data2, dtp->data3); 241 } 242 for (i = 0; i < index; i++) { 243 dtp = phba->slow_ring_trc + i; 244 if (!dtp->fmt) 245 continue; 246 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 247 snprintf(buffer, 248 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 249 dtp->seq_cnt, ms, dtp->fmt); 250 len += snprintf(buf+len, size-len, buffer, 251 dtp->data1, dtp->data2, dtp->data3); 252 } 253 254 lpfc_debugfs_enable = enable; 255 kfree(buffer); 256 257 return len; 258 } 259 260 static int lpfc_debugfs_last_hbq = -1; 261 262 /** 263 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 264 * @phba: The HBA to gather host buffer info from. 265 * @buf: The buffer to dump log into. 266 * @size: The maximum amount of data to process. 267 * 268 * Description: 269 * This routine dumps the host buffer queue info from the @phba to @buf up to 270 * @size number of bytes. A header that describes the current hbq state will be 271 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 272 * until @size bytes have been dumped or all the hbq info has been dumped. 273 * 274 * Notes: 275 * This routine will rotate through each configured HBQ each time called. 276 * 277 * Return Value: 278 * This routine returns the amount of bytes that were dumped into @buf and will 279 * not exceed @size. 280 **/ 281 static int 282 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 283 { 284 int len = 0; 285 int i, j, found, posted, low; 286 uint32_t phys, raw_index, getidx; 287 struct lpfc_hbq_init *hip; 288 struct hbq_s *hbqs; 289 struct lpfc_hbq_entry *hbqe; 290 struct lpfc_dmabuf *d_buf; 291 struct hbq_dmabuf *hbq_buf; 292 293 if (phba->sli_rev != 3) 294 return 0; 295 296 spin_lock_irq(&phba->hbalock); 297 298 /* toggle between multiple hbqs, if any */ 299 i = lpfc_sli_hbq_count(); 300 if (i > 1) { 301 lpfc_debugfs_last_hbq++; 302 if (lpfc_debugfs_last_hbq >= i) 303 lpfc_debugfs_last_hbq = 0; 304 } 305 else 306 lpfc_debugfs_last_hbq = 0; 307 308 i = lpfc_debugfs_last_hbq; 309 310 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); 311 312 hbqs = &phba->hbqs[i]; 313 posted = 0; 314 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 315 posted++; 316 317 hip = lpfc_hbq_defs[i]; 318 len += snprintf(buf+len, size-len, 319 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 320 hip->hbq_index, hip->profile, hip->rn, 321 hip->buffer_count, hip->init_count, hip->add_count, posted); 322 323 raw_index = phba->hbq_get[i]; 324 getidx = le32_to_cpu(raw_index); 325 len += snprintf(buf+len, size-len, 326 "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 327 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 328 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 329 330 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 331 for (j=0; j<hbqs->entry_count; j++) { 332 len += snprintf(buf+len, size-len, 333 "%03d: %08x %04x %05x ", j, 334 le32_to_cpu(hbqe->bde.addrLow), 335 le32_to_cpu(hbqe->bde.tus.w), 336 le32_to_cpu(hbqe->buffer_tag)); 337 i = 0; 338 found = 0; 339 340 /* First calculate if slot has an associated posted buffer */ 341 low = hbqs->hbqPutIdx - posted; 342 if (low >= 0) { 343 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 344 len += snprintf(buf+len, size-len, "Unused\n"); 345 goto skipit; 346 } 347 } 348 else { 349 if ((j >= hbqs->hbqPutIdx) && 350 (j < (hbqs->entry_count+low))) { 351 len += snprintf(buf+len, size-len, "Unused\n"); 352 goto skipit; 353 } 354 } 355 356 /* Get the Buffer info for the posted buffer */ 357 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 358 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 359 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 360 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 361 len += snprintf(buf+len, size-len, 362 "Buf%d: %p %06x\n", i, 363 hbq_buf->dbuf.virt, hbq_buf->tag); 364 found = 1; 365 break; 366 } 367 i++; 368 } 369 if (!found) { 370 len += snprintf(buf+len, size-len, "No DMAinfo?\n"); 371 } 372 skipit: 373 hbqe++; 374 if (len > LPFC_HBQINFO_SIZE - 54) 375 break; 376 } 377 spin_unlock_irq(&phba->hbalock); 378 return len; 379 } 380 381 static int lpfc_debugfs_last_hba_slim_off; 382 383 /** 384 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 385 * @phba: The HBA to gather SLIM info from. 386 * @buf: The buffer to dump log into. 387 * @size: The maximum amount of data to process. 388 * 389 * Description: 390 * This routine dumps the current contents of HBA SLIM for the HBA associated 391 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 392 * 393 * Notes: 394 * This routine will only dump up to 1024 bytes of data each time called and 395 * should be called multiple times to dump the entire HBA SLIM. 396 * 397 * Return Value: 398 * This routine returns the amount of bytes that were dumped into @buf and will 399 * not exceed @size. 400 **/ 401 static int 402 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 403 { 404 int len = 0; 405 int i, off; 406 uint32_t *ptr; 407 char *buffer; 408 409 buffer = kmalloc(1024, GFP_KERNEL); 410 if (!buffer) 411 return 0; 412 413 off = 0; 414 spin_lock_irq(&phba->hbalock); 415 416 len += snprintf(buf+len, size-len, "HBA SLIM\n"); 417 lpfc_memcpy_from_slim(buffer, 418 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 419 420 ptr = (uint32_t *)&buffer[0]; 421 off = lpfc_debugfs_last_hba_slim_off; 422 423 /* Set it up for the next time */ 424 lpfc_debugfs_last_hba_slim_off += 1024; 425 if (lpfc_debugfs_last_hba_slim_off >= 4096) 426 lpfc_debugfs_last_hba_slim_off = 0; 427 428 i = 1024; 429 while (i > 0) { 430 len += snprintf(buf+len, size-len, 431 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 432 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 433 *(ptr+5), *(ptr+6), *(ptr+7)); 434 ptr += 8; 435 i -= (8 * sizeof(uint32_t)); 436 off += (8 * sizeof(uint32_t)); 437 } 438 439 spin_unlock_irq(&phba->hbalock); 440 kfree(buffer); 441 442 return len; 443 } 444 445 /** 446 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 447 * @phba: The HBA to gather Host SLIM info from. 448 * @buf: The buffer to dump log into. 449 * @size: The maximum amount of data to process. 450 * 451 * Description: 452 * This routine dumps the current contents of host SLIM for the host associated 453 * with @phba to @buf up to @size bytes of data. The dump will contain the 454 * Mailbox, PCB, Rings, and Registers that are located in host memory. 455 * 456 * Return Value: 457 * This routine returns the amount of bytes that were dumped into @buf and will 458 * not exceed @size. 459 **/ 460 static int 461 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 462 { 463 int len = 0; 464 int i, off; 465 uint32_t word0, word1, word2, word3; 466 uint32_t *ptr; 467 struct lpfc_pgp *pgpp; 468 struct lpfc_sli *psli = &phba->sli; 469 struct lpfc_sli_ring *pring; 470 471 off = 0; 472 spin_lock_irq(&phba->hbalock); 473 474 len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); 475 ptr = (uint32_t *)phba->slim2p.virt; 476 i = sizeof(MAILBOX_t); 477 while (i > 0) { 478 len += snprintf(buf+len, size-len, 479 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 480 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 481 *(ptr+5), *(ptr+6), *(ptr+7)); 482 ptr += 8; 483 i -= (8 * sizeof(uint32_t)); 484 off += (8 * sizeof(uint32_t)); 485 } 486 487 len += snprintf(buf+len, size-len, "SLIM PCB\n"); 488 ptr = (uint32_t *)phba->pcb; 489 i = sizeof(PCB_t); 490 while (i > 0) { 491 len += snprintf(buf+len, size-len, 492 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 493 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 494 *(ptr+5), *(ptr+6), *(ptr+7)); 495 ptr += 8; 496 i -= (8 * sizeof(uint32_t)); 497 off += (8 * sizeof(uint32_t)); 498 } 499 500 if (phba->sli_rev <= LPFC_SLI_REV3) { 501 for (i = 0; i < 4; i++) { 502 pgpp = &phba->port_gp[i]; 503 pring = &psli->sli3_ring[i]; 504 len += snprintf(buf+len, size-len, 505 "Ring %d: CMD GetInx:%d " 506 "(Max:%d Next:%d " 507 "Local:%d flg:x%x) " 508 "RSP PutInx:%d Max:%d\n", 509 i, pgpp->cmdGetInx, 510 pring->sli.sli3.numCiocb, 511 pring->sli.sli3.next_cmdidx, 512 pring->sli.sli3.local_getidx, 513 pring->flag, pgpp->rspPutInx, 514 pring->sli.sli3.numRiocb); 515 } 516 517 word0 = readl(phba->HAregaddr); 518 word1 = readl(phba->CAregaddr); 519 word2 = readl(phba->HSregaddr); 520 word3 = readl(phba->HCregaddr); 521 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 522 "HC:%08x\n", word0, word1, word2, word3); 523 } 524 spin_unlock_irq(&phba->hbalock); 525 return len; 526 } 527 528 /** 529 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 530 * @vport: The vport to gather target node info from. 531 * @buf: The buffer to dump log into. 532 * @size: The maximum amount of data to process. 533 * 534 * Description: 535 * This routine dumps the current target node list associated with @vport to 536 * @buf up to @size bytes of data. Each node entry in the dump will contain a 537 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 538 * 539 * Return Value: 540 * This routine returns the amount of bytes that were dumped into @buf and will 541 * not exceed @size. 542 **/ 543 static int 544 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 545 { 546 int len = 0; 547 int cnt; 548 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 549 struct lpfc_hba *phba = vport->phba; 550 struct lpfc_nodelist *ndlp; 551 unsigned char *statep; 552 struct nvme_fc_local_port *localport; 553 struct lpfc_nvme_lport *lport; 554 struct lpfc_nvme_rport *rport; 555 struct lpfc_nvmet_tgtport *tgtp; 556 struct nvme_fc_remote_port *nrport; 557 558 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 559 560 len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 561 spin_lock_irq(shost->host_lock); 562 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 563 if (!cnt) { 564 len += snprintf(buf+len, size-len, 565 "Missing Nodelist Entries\n"); 566 break; 567 } 568 cnt--; 569 switch (ndlp->nlp_state) { 570 case NLP_STE_UNUSED_NODE: 571 statep = "UNUSED"; 572 break; 573 case NLP_STE_PLOGI_ISSUE: 574 statep = "PLOGI "; 575 break; 576 case NLP_STE_ADISC_ISSUE: 577 statep = "ADISC "; 578 break; 579 case NLP_STE_REG_LOGIN_ISSUE: 580 statep = "REGLOG"; 581 break; 582 case NLP_STE_PRLI_ISSUE: 583 statep = "PRLI "; 584 break; 585 case NLP_STE_LOGO_ISSUE: 586 statep = "LOGO "; 587 break; 588 case NLP_STE_UNMAPPED_NODE: 589 statep = "UNMAP "; 590 break; 591 case NLP_STE_MAPPED_NODE: 592 statep = "MAPPED"; 593 break; 594 case NLP_STE_NPR_NODE: 595 statep = "NPR "; 596 break; 597 default: 598 statep = "UNKNOWN"; 599 } 600 len += snprintf(buf+len, size-len, "%s DID:x%06x ", 601 statep, ndlp->nlp_DID); 602 len += snprintf(buf+len, size-len, 603 "WWPN x%llx ", 604 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 605 len += snprintf(buf+len, size-len, 606 "WWNN x%llx ", 607 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 608 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 609 len += snprintf(buf+len, size-len, "RPI:%03d ", 610 ndlp->nlp_rpi); 611 else 612 len += snprintf(buf+len, size-len, "RPI:none "); 613 len += snprintf(buf+len, size-len, "flag:x%08x ", 614 ndlp->nlp_flag); 615 if (!ndlp->nlp_type) 616 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); 617 if (ndlp->nlp_type & NLP_FC_NODE) 618 len += snprintf(buf+len, size-len, "FC_NODE "); 619 if (ndlp->nlp_type & NLP_FABRIC) 620 len += snprintf(buf+len, size-len, "FABRIC "); 621 if (ndlp->nlp_type & NLP_FCP_TARGET) 622 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", 623 ndlp->nlp_sid); 624 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 625 len += snprintf(buf+len, size-len, "FCP_INITIATOR "); 626 len += snprintf(buf+len, size-len, "usgmap:%x ", 627 ndlp->nlp_usg_map); 628 len += snprintf(buf+len, size-len, "refcnt:%x", 629 kref_read(&ndlp->kref)); 630 len += snprintf(buf+len, size-len, "\n"); 631 } 632 spin_unlock_irq(shost->host_lock); 633 634 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 635 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 636 len += snprintf(buf + len, size - len, 637 "\nNVME Targetport Entry ...\n"); 638 639 /* Port state is only one of two values for now. */ 640 if (phba->targetport->port_id) 641 statep = "REGISTERED"; 642 else 643 statep = "INIT"; 644 len += snprintf(buf + len, size - len, 645 "TGT WWNN x%llx WWPN x%llx State %s\n", 646 wwn_to_u64(vport->fc_nodename.u.wwn), 647 wwn_to_u64(vport->fc_portname.u.wwn), 648 statep); 649 len += snprintf(buf + len, size - len, 650 " Targetport DID x%06x\n", 651 phba->targetport->port_id); 652 goto out_exit; 653 } 654 655 len += snprintf(buf + len, size - len, 656 "\nNVME Lport/Rport Entries ...\n"); 657 658 localport = vport->localport; 659 if (!localport) 660 goto out_exit; 661 662 spin_lock_irq(shost->host_lock); 663 lport = (struct lpfc_nvme_lport *)localport->private; 664 665 /* Port state is only one of two values for now. */ 666 if (localport->port_id) 667 statep = "ONLINE"; 668 else 669 statep = "UNKNOWN "; 670 671 len += snprintf(buf + len, size - len, 672 "Lport DID x%06x PortState %s\n", 673 localport->port_id, statep); 674 675 len += snprintf(buf + len, size - len, "\tRport List:\n"); 676 list_for_each_entry(rport, &lport->rport_list, list) { 677 /* local short-hand pointer. */ 678 nrport = rport->remoteport; 679 680 /* Port state is only one of two values for now. */ 681 switch (nrport->port_state) { 682 case FC_OBJSTATE_ONLINE: 683 statep = "ONLINE"; 684 break; 685 case FC_OBJSTATE_UNKNOWN: 686 statep = "UNKNOWN "; 687 break; 688 default: 689 statep = "UNSUPPORTED"; 690 break; 691 } 692 693 /* Tab in to show lport ownership. */ 694 len += snprintf(buf + len, size - len, 695 "\t%s Port ID:x%06x ", 696 statep, nrport->port_id); 697 len += snprintf(buf + len, size - len, "WWPN x%llx ", 698 nrport->port_name); 699 len += snprintf(buf + len, size - len, "WWNN x%llx ", 700 nrport->node_name); 701 switch (nrport->port_role) { 702 case FC_PORT_ROLE_NVME_INITIATOR: 703 len += snprintf(buf + len, size - len, 704 "NVME INITIATOR "); 705 break; 706 case FC_PORT_ROLE_NVME_TARGET: 707 len += snprintf(buf + len, size - len, 708 "NVME TARGET "); 709 break; 710 case FC_PORT_ROLE_NVME_DISCOVERY: 711 len += snprintf(buf + len, size - len, 712 "NVME DISCOVERY "); 713 break; 714 default: 715 len += snprintf(buf + len, size - len, 716 "UNKNOWN ROLE x%x", 717 nrport->port_role); 718 break; 719 } 720 721 /* Terminate the string. */ 722 len += snprintf(buf + len, size - len, "\n"); 723 } 724 725 spin_unlock_irq(shost->host_lock); 726 out_exit: 727 return len; 728 } 729 730 /** 731 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 732 * @vport: The vport to gather target node info from. 733 * @buf: The buffer to dump log into. 734 * @size: The maximum amount of data to process. 735 * 736 * Description: 737 * This routine dumps the NVME statistics associated with @vport 738 * 739 * Return Value: 740 * This routine returns the amount of bytes that were dumped into @buf and will 741 * not exceed @size. 742 **/ 743 static int 744 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 745 { 746 struct lpfc_hba *phba = vport->phba; 747 struct lpfc_nvmet_tgtport *tgtp; 748 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp; 749 int len = 0; 750 int cnt; 751 752 if (phba->nvmet_support) { 753 if (!phba->targetport) 754 return len; 755 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 756 len += snprintf(buf + len, size - len, 757 "\nNVME Targetport Statistics\n"); 758 759 len += snprintf(buf + len, size - len, 760 "LS: Rcv %08x Drop %08x Abort %08x\n", 761 atomic_read(&tgtp->rcv_ls_req_in), 762 atomic_read(&tgtp->rcv_ls_req_drop), 763 atomic_read(&tgtp->xmt_ls_abort)); 764 if (atomic_read(&tgtp->rcv_ls_req_in) != 765 atomic_read(&tgtp->rcv_ls_req_out)) { 766 len += snprintf(buf + len, size - len, 767 "Rcv LS: in %08x != out %08x\n", 768 atomic_read(&tgtp->rcv_ls_req_in), 769 atomic_read(&tgtp->rcv_ls_req_out)); 770 } 771 772 len += snprintf(buf + len, size - len, 773 "LS: Xmt %08x Drop %08x Cmpl %08x Err %08x\n", 774 atomic_read(&tgtp->xmt_ls_rsp), 775 atomic_read(&tgtp->xmt_ls_drop), 776 atomic_read(&tgtp->xmt_ls_rsp_cmpl), 777 atomic_read(&tgtp->xmt_ls_rsp_error)); 778 779 len += snprintf(buf + len, size - len, 780 "FCP: Rcv %08x Drop %08x\n", 781 atomic_read(&tgtp->rcv_fcp_cmd_in), 782 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 783 784 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 785 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 786 len += snprintf(buf + len, size - len, 787 "Rcv FCP: in %08x != out %08x\n", 788 atomic_read(&tgtp->rcv_fcp_cmd_in), 789 atomic_read(&tgtp->rcv_fcp_cmd_out)); 790 } 791 792 len += snprintf(buf + len, size - len, 793 "FCP Rsp: read %08x readrsp %08x " 794 "write %08x rsp %08x\n", 795 atomic_read(&tgtp->xmt_fcp_read), 796 atomic_read(&tgtp->xmt_fcp_read_rsp), 797 atomic_read(&tgtp->xmt_fcp_write), 798 atomic_read(&tgtp->xmt_fcp_rsp)); 799 800 len += snprintf(buf + len, size - len, 801 "FCP Rsp: abort %08x drop %08x\n", 802 atomic_read(&tgtp->xmt_fcp_abort), 803 atomic_read(&tgtp->xmt_fcp_drop)); 804 805 len += snprintf(buf + len, size - len, 806 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 807 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 808 atomic_read(&tgtp->xmt_fcp_rsp_error), 809 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 810 811 len += snprintf(buf + len, size - len, 812 "ABORT: Xmt %08x Err %08x Cmpl %08x", 813 atomic_read(&tgtp->xmt_abort_rsp), 814 atomic_read(&tgtp->xmt_abort_rsp_error), 815 atomic_read(&tgtp->xmt_abort_cmpl)); 816 817 len += snprintf(buf + len, size - len, "\n"); 818 819 cnt = 0; 820 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 821 list_for_each_entry_safe(ctxp, next_ctxp, 822 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 823 list) { 824 cnt++; 825 } 826 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 827 if (cnt) { 828 len += snprintf(buf + len, size - len, 829 "ABORT: %d ctx entries\n", cnt); 830 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 831 list_for_each_entry_safe(ctxp, next_ctxp, 832 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 833 list) { 834 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 835 break; 836 len += snprintf(buf + len, size - len, 837 "Entry: oxid %x state %x " 838 "flag %x\n", 839 ctxp->oxid, ctxp->state, 840 ctxp->flag); 841 } 842 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 843 } 844 } else { 845 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 846 return len; 847 848 len += snprintf(buf + len, size - len, 849 "\nNVME Lport Statistics\n"); 850 851 len += snprintf(buf + len, size - len, 852 "LS: Xmt %016llx Cmpl %016llx\n", 853 phba->fc4NvmeLsRequests, 854 phba->fc4NvmeLsCmpls); 855 856 len += snprintf(buf + len, size - len, 857 "FCP: Rd %016llx Wr %016llx IO %016llx\n", 858 phba->fc4NvmeInputRequests, 859 phba->fc4NvmeOutputRequests, 860 phba->fc4NvmeControlRequests); 861 862 len += snprintf(buf + len, size - len, 863 " Cmpl %016llx\n", phba->fc4NvmeIoCmpls); 864 } 865 866 return len; 867 } 868 869 870 /** 871 * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer 872 * @vport: The vport to gather target node info from. 873 * @buf: The buffer to dump log into. 874 * @size: The maximum amount of data to process. 875 * 876 * Description: 877 * This routine dumps the NVME statistics associated with @vport 878 * 879 * Return Value: 880 * This routine returns the amount of bytes that were dumped into @buf and will 881 * not exceed @size. 882 **/ 883 static int 884 lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size) 885 { 886 struct lpfc_hba *phba = vport->phba; 887 int len = 0; 888 889 if (phba->nvmet_support == 0) { 890 /* NVME Initiator */ 891 len += snprintf(buf + len, PAGE_SIZE - len, 892 "ktime %s: Total Samples: %lld\n", 893 (phba->ktime_on ? "Enabled" : "Disabled"), 894 phba->ktime_data_samples); 895 if (phba->ktime_data_samples == 0) 896 return len; 897 898 len += snprintf( 899 buf + len, PAGE_SIZE - len, 900 "Segment 1: Last NVME Cmd cmpl " 901 "done -to- Start of next NVME cnd (in driver)\n"); 902 len += snprintf( 903 buf + len, PAGE_SIZE - len, 904 "avg:%08lld min:%08lld max %08lld\n", 905 div_u64(phba->ktime_seg1_total, 906 phba->ktime_data_samples), 907 phba->ktime_seg1_min, 908 phba->ktime_seg1_max); 909 len += snprintf( 910 buf + len, PAGE_SIZE - len, 911 "Segment 2: Driver start of NVME cmd " 912 "-to- Firmware WQ doorbell\n"); 913 len += snprintf( 914 buf + len, PAGE_SIZE - len, 915 "avg:%08lld min:%08lld max %08lld\n", 916 div_u64(phba->ktime_seg2_total, 917 phba->ktime_data_samples), 918 phba->ktime_seg2_min, 919 phba->ktime_seg2_max); 920 len += snprintf( 921 buf + len, PAGE_SIZE - len, 922 "Segment 3: Firmware WQ doorbell -to- " 923 "MSI-X ISR cmpl\n"); 924 len += snprintf( 925 buf + len, PAGE_SIZE - len, 926 "avg:%08lld min:%08lld max %08lld\n", 927 div_u64(phba->ktime_seg3_total, 928 phba->ktime_data_samples), 929 phba->ktime_seg3_min, 930 phba->ktime_seg3_max); 931 len += snprintf( 932 buf + len, PAGE_SIZE - len, 933 "Segment 4: MSI-X ISR cmpl -to- " 934 "NVME cmpl done\n"); 935 len += snprintf( 936 buf + len, PAGE_SIZE - len, 937 "avg:%08lld min:%08lld max %08lld\n", 938 div_u64(phba->ktime_seg4_total, 939 phba->ktime_data_samples), 940 phba->ktime_seg4_min, 941 phba->ktime_seg4_max); 942 len += snprintf( 943 buf + len, PAGE_SIZE - len, 944 "Total IO avg time: %08lld\n", 945 div_u64(phba->ktime_seg1_total + 946 phba->ktime_seg2_total + 947 phba->ktime_seg3_total + 948 phba->ktime_seg4_total, 949 phba->ktime_data_samples)); 950 return len; 951 } 952 953 /* NVME Target */ 954 len += snprintf(buf + len, PAGE_SIZE-len, 955 "ktime %s: Total Samples: %lld %lld\n", 956 (phba->ktime_on ? "Enabled" : "Disabled"), 957 phba->ktime_data_samples, 958 phba->ktime_status_samples); 959 if (phba->ktime_data_samples == 0) 960 return len; 961 962 len += snprintf(buf + len, PAGE_SIZE-len, 963 "Segment 1: MSI-X ISR Rcv cmd -to- " 964 "cmd pass to NVME Layer\n"); 965 len += snprintf(buf + len, PAGE_SIZE-len, 966 "avg:%08lld min:%08lld max %08lld\n", 967 div_u64(phba->ktime_seg1_total, 968 phba->ktime_data_samples), 969 phba->ktime_seg1_min, 970 phba->ktime_seg1_max); 971 len += snprintf(buf + len, PAGE_SIZE-len, 972 "Segment 2: cmd pass to NVME Layer- " 973 "-to- Driver rcv cmd OP (action)\n"); 974 len += snprintf(buf + len, PAGE_SIZE-len, 975 "avg:%08lld min:%08lld max %08lld\n", 976 div_u64(phba->ktime_seg2_total, 977 phba->ktime_data_samples), 978 phba->ktime_seg2_min, 979 phba->ktime_seg2_max); 980 len += snprintf(buf + len, PAGE_SIZE-len, 981 "Segment 3: Driver rcv cmd OP -to- " 982 "Firmware WQ doorbell: cmd\n"); 983 len += snprintf(buf + len, PAGE_SIZE-len, 984 "avg:%08lld min:%08lld max %08lld\n", 985 div_u64(phba->ktime_seg3_total, 986 phba->ktime_data_samples), 987 phba->ktime_seg3_min, 988 phba->ktime_seg3_max); 989 len += snprintf(buf + len, PAGE_SIZE-len, 990 "Segment 4: Firmware WQ doorbell: cmd " 991 "-to- MSI-X ISR for cmd cmpl\n"); 992 len += snprintf(buf + len, PAGE_SIZE-len, 993 "avg:%08lld min:%08lld max %08lld\n", 994 div_u64(phba->ktime_seg4_total, 995 phba->ktime_data_samples), 996 phba->ktime_seg4_min, 997 phba->ktime_seg4_max); 998 len += snprintf(buf + len, PAGE_SIZE-len, 999 "Segment 5: MSI-X ISR for cmd cmpl " 1000 "-to- NVME layer passed cmd done\n"); 1001 len += snprintf(buf + len, PAGE_SIZE-len, 1002 "avg:%08lld min:%08lld max %08lld\n", 1003 div_u64(phba->ktime_seg5_total, 1004 phba->ktime_data_samples), 1005 phba->ktime_seg5_min, 1006 phba->ktime_seg5_max); 1007 1008 if (phba->ktime_status_samples == 0) { 1009 len += snprintf(buf + len, PAGE_SIZE-len, 1010 "Total: cmd received by MSI-X ISR " 1011 "-to- cmd completed on wire\n"); 1012 len += snprintf(buf + len, PAGE_SIZE-len, 1013 "avg:%08lld min:%08lld " 1014 "max %08lld\n", 1015 div_u64(phba->ktime_seg10_total, 1016 phba->ktime_data_samples), 1017 phba->ktime_seg10_min, 1018 phba->ktime_seg10_max); 1019 return len; 1020 } 1021 1022 len += snprintf(buf + len, PAGE_SIZE-len, 1023 "Segment 6: NVME layer passed cmd done " 1024 "-to- Driver rcv rsp status OP\n"); 1025 len += snprintf(buf + len, PAGE_SIZE-len, 1026 "avg:%08lld min:%08lld max %08lld\n", 1027 div_u64(phba->ktime_seg6_total, 1028 phba->ktime_status_samples), 1029 phba->ktime_seg6_min, 1030 phba->ktime_seg6_max); 1031 len += snprintf(buf + len, PAGE_SIZE-len, 1032 "Segment 7: Driver rcv rsp status OP " 1033 "-to- Firmware WQ doorbell: status\n"); 1034 len += snprintf(buf + len, PAGE_SIZE-len, 1035 "avg:%08lld min:%08lld max %08lld\n", 1036 div_u64(phba->ktime_seg7_total, 1037 phba->ktime_status_samples), 1038 phba->ktime_seg7_min, 1039 phba->ktime_seg7_max); 1040 len += snprintf(buf + len, PAGE_SIZE-len, 1041 "Segment 8: Firmware WQ doorbell: status" 1042 " -to- MSI-X ISR for status cmpl\n"); 1043 len += snprintf(buf + len, PAGE_SIZE-len, 1044 "avg:%08lld min:%08lld max %08lld\n", 1045 div_u64(phba->ktime_seg8_total, 1046 phba->ktime_status_samples), 1047 phba->ktime_seg8_min, 1048 phba->ktime_seg8_max); 1049 len += snprintf(buf + len, PAGE_SIZE-len, 1050 "Segment 9: MSI-X ISR for status cmpl " 1051 "-to- NVME layer passed status done\n"); 1052 len += snprintf(buf + len, PAGE_SIZE-len, 1053 "avg:%08lld min:%08lld max %08lld\n", 1054 div_u64(phba->ktime_seg9_total, 1055 phba->ktime_status_samples), 1056 phba->ktime_seg9_min, 1057 phba->ktime_seg9_max); 1058 len += snprintf(buf + len, PAGE_SIZE-len, 1059 "Total: cmd received by MSI-X ISR -to- " 1060 "cmd completed on wire\n"); 1061 len += snprintf(buf + len, PAGE_SIZE-len, 1062 "avg:%08lld min:%08lld max %08lld\n", 1063 div_u64(phba->ktime_seg10_total, 1064 phba->ktime_status_samples), 1065 phba->ktime_seg10_min, 1066 phba->ktime_seg10_max); 1067 return len; 1068 } 1069 1070 /** 1071 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1072 * @phba: The phba to gather target node info from. 1073 * @buf: The buffer to dump log into. 1074 * @size: The maximum amount of data to process. 1075 * 1076 * Description: 1077 * This routine dumps the NVME IO trace associated with @phba 1078 * 1079 * Return Value: 1080 * This routine returns the amount of bytes that were dumped into @buf and will 1081 * not exceed @size. 1082 **/ 1083 static int 1084 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1085 { 1086 struct lpfc_debugfs_nvmeio_trc *dtp; 1087 int i, state, index, skip; 1088 int len = 0; 1089 1090 state = phba->nvmeio_trc_on; 1091 1092 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1093 (phba->nvmeio_trc_size - 1); 1094 skip = phba->nvmeio_trc_output_idx; 1095 1096 len += snprintf(buf + len, size - len, 1097 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1098 (phba->nvmet_support ? "NVME" : "NVMET"), 1099 (state ? "Enabled" : "Disabled"), 1100 index, skip, phba->nvmeio_trc_size); 1101 1102 if (!phba->nvmeio_trc || state) 1103 return len; 1104 1105 /* trace MUST bhe off to continue */ 1106 1107 for (i = index; i < phba->nvmeio_trc_size; i++) { 1108 if (skip) { 1109 skip--; 1110 continue; 1111 } 1112 dtp = phba->nvmeio_trc + i; 1113 phba->nvmeio_trc_output_idx++; 1114 1115 if (!dtp->fmt) 1116 continue; 1117 1118 len += snprintf(buf + len, size - len, dtp->fmt, 1119 dtp->data1, dtp->data2, dtp->data3); 1120 1121 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1122 phba->nvmeio_trc_output_idx = 0; 1123 len += snprintf(buf + len, size - len, 1124 "Trace Complete\n"); 1125 goto out; 1126 } 1127 1128 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1129 len += snprintf(buf + len, size - len, 1130 "Trace Continue (%d of %d)\n", 1131 phba->nvmeio_trc_output_idx, 1132 phba->nvmeio_trc_size); 1133 goto out; 1134 } 1135 } 1136 for (i = 0; i < index; i++) { 1137 if (skip) { 1138 skip--; 1139 continue; 1140 } 1141 dtp = phba->nvmeio_trc + i; 1142 phba->nvmeio_trc_output_idx++; 1143 1144 if (!dtp->fmt) 1145 continue; 1146 1147 len += snprintf(buf + len, size - len, dtp->fmt, 1148 dtp->data1, dtp->data2, dtp->data3); 1149 1150 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1151 phba->nvmeio_trc_output_idx = 0; 1152 len += snprintf(buf + len, size - len, 1153 "Trace Complete\n"); 1154 goto out; 1155 } 1156 1157 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1158 len += snprintf(buf + len, size - len, 1159 "Trace Continue (%d of %d)\n", 1160 phba->nvmeio_trc_output_idx, 1161 phba->nvmeio_trc_size); 1162 goto out; 1163 } 1164 } 1165 1166 len += snprintf(buf + len, size - len, 1167 "Trace Done\n"); 1168 out: 1169 return len; 1170 } 1171 1172 /** 1173 * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer 1174 * @vport: The vport to gather target node info from. 1175 * @buf: The buffer to dump log into. 1176 * @size: The maximum amount of data to process. 1177 * 1178 * Description: 1179 * This routine dumps the NVME statistics associated with @vport 1180 * 1181 * Return Value: 1182 * This routine returns the amount of bytes that were dumped into @buf and will 1183 * not exceed @size. 1184 **/ 1185 static int 1186 lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size) 1187 { 1188 struct lpfc_hba *phba = vport->phba; 1189 int i; 1190 int len = 0; 1191 uint32_t tot_xmt = 0; 1192 uint32_t tot_rcv = 0; 1193 uint32_t tot_cmpl = 0; 1194 uint32_t tot_ccmpl = 0; 1195 1196 if (phba->nvmet_support == 0) { 1197 /* NVME Initiator */ 1198 len += snprintf(buf + len, PAGE_SIZE - len, 1199 "CPUcheck %s\n", 1200 (phba->cpucheck_on & LPFC_CHECK_NVME_IO ? 1201 "Enabled" : "Disabled")); 1202 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1203 if (i >= LPFC_CHECK_CPU_CNT) 1204 break; 1205 len += snprintf(buf + len, PAGE_SIZE - len, 1206 "%02d: xmit x%08x cmpl x%08x\n", 1207 i, phba->cpucheck_xmt_io[i], 1208 phba->cpucheck_cmpl_io[i]); 1209 tot_xmt += phba->cpucheck_xmt_io[i]; 1210 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1211 } 1212 len += snprintf(buf + len, PAGE_SIZE - len, 1213 "tot:xmit x%08x cmpl x%08x\n", 1214 tot_xmt, tot_cmpl); 1215 return len; 1216 } 1217 1218 /* NVME Target */ 1219 len += snprintf(buf + len, PAGE_SIZE - len, 1220 "CPUcheck %s ", 1221 (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ? 1222 "IO Enabled - " : "IO Disabled - ")); 1223 len += snprintf(buf + len, PAGE_SIZE - len, 1224 "%s\n", 1225 (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ? 1226 "Rcv Enabled\n" : "Rcv Disabled\n")); 1227 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1228 if (i >= LPFC_CHECK_CPU_CNT) 1229 break; 1230 len += snprintf(buf + len, PAGE_SIZE - len, 1231 "%02d: xmit x%08x ccmpl x%08x " 1232 "cmpl x%08x rcv x%08x\n", 1233 i, phba->cpucheck_xmt_io[i], 1234 phba->cpucheck_ccmpl_io[i], 1235 phba->cpucheck_cmpl_io[i], 1236 phba->cpucheck_rcv_io[i]); 1237 tot_xmt += phba->cpucheck_xmt_io[i]; 1238 tot_rcv += phba->cpucheck_rcv_io[i]; 1239 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1240 tot_ccmpl += phba->cpucheck_ccmpl_io[i]; 1241 } 1242 len += snprintf(buf + len, PAGE_SIZE - len, 1243 "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n", 1244 tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv); 1245 return len; 1246 } 1247 1248 #endif 1249 1250 /** 1251 * lpfc_debugfs_disc_trc - Store discovery trace log 1252 * @vport: The vport to associate this trace string with for retrieval. 1253 * @mask: Log entry classification. 1254 * @fmt: Format string to be displayed when dumping the log. 1255 * @data1: 1st data parameter to be applied to @fmt. 1256 * @data2: 2nd data parameter to be applied to @fmt. 1257 * @data3: 3rd data parameter to be applied to @fmt. 1258 * 1259 * Description: 1260 * This routine is used by the driver code to add a debugfs log entry to the 1261 * discovery trace buffer associated with @vport. Only entries with a @mask that 1262 * match the current debugfs discovery mask will be saved. Entries that do not 1263 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1264 * printf when displaying the log. 1265 **/ 1266 inline void 1267 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1268 uint32_t data1, uint32_t data2, uint32_t data3) 1269 { 1270 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1271 struct lpfc_debugfs_trc *dtp; 1272 int index; 1273 1274 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1275 return; 1276 1277 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1278 !vport || !vport->disc_trc) 1279 return; 1280 1281 index = atomic_inc_return(&vport->disc_trc_cnt) & 1282 (lpfc_debugfs_max_disc_trc - 1); 1283 dtp = vport->disc_trc + index; 1284 dtp->fmt = fmt; 1285 dtp->data1 = data1; 1286 dtp->data2 = data2; 1287 dtp->data3 = data3; 1288 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1289 dtp->jif = jiffies; 1290 #endif 1291 return; 1292 } 1293 1294 /** 1295 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1296 * @phba: The phba to associate this trace string with for retrieval. 1297 * @fmt: Format string to be displayed when dumping the log. 1298 * @data1: 1st data parameter to be applied to @fmt. 1299 * @data2: 2nd data parameter to be applied to @fmt. 1300 * @data3: 3rd data parameter to be applied to @fmt. 1301 * 1302 * Description: 1303 * This routine is used by the driver code to add a debugfs log entry to the 1304 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1305 * @data3 are used like printf when displaying the log. 1306 **/ 1307 inline void 1308 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1309 uint32_t data1, uint32_t data2, uint32_t data3) 1310 { 1311 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1312 struct lpfc_debugfs_trc *dtp; 1313 int index; 1314 1315 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1316 !phba || !phba->slow_ring_trc) 1317 return; 1318 1319 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1320 (lpfc_debugfs_max_slow_ring_trc - 1); 1321 dtp = phba->slow_ring_trc + index; 1322 dtp->fmt = fmt; 1323 dtp->data1 = data1; 1324 dtp->data2 = data2; 1325 dtp->data3 = data3; 1326 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1327 dtp->jif = jiffies; 1328 #endif 1329 return; 1330 } 1331 1332 /** 1333 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1334 * @phba: The phba to associate this trace string with for retrieval. 1335 * @fmt: Format string to be displayed when dumping the log. 1336 * @data1: 1st data parameter to be applied to @fmt. 1337 * @data2: 2nd data parameter to be applied to @fmt. 1338 * @data3: 3rd data parameter to be applied to @fmt. 1339 * 1340 * Description: 1341 * This routine is used by the driver code to add a debugfs log entry to the 1342 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1343 * @data3 are used like printf when displaying the log. 1344 **/ 1345 inline void 1346 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1347 uint16_t data1, uint16_t data2, uint32_t data3) 1348 { 1349 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1350 struct lpfc_debugfs_nvmeio_trc *dtp; 1351 int index; 1352 1353 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1354 return; 1355 1356 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1357 (phba->nvmeio_trc_size - 1); 1358 dtp = phba->nvmeio_trc + index; 1359 dtp->fmt = fmt; 1360 dtp->data1 = data1; 1361 dtp->data2 = data2; 1362 dtp->data3 = data3; 1363 #endif 1364 } 1365 1366 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1367 /** 1368 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1369 * @inode: The inode pointer that contains a vport pointer. 1370 * @file: The file pointer to attach the log output. 1371 * 1372 * Description: 1373 * This routine is the entry point for the debugfs open file operation. It gets 1374 * the vport from the i_private field in @inode, allocates the necessary buffer 1375 * for the log, fills the buffer from the in-memory log for this vport, and then 1376 * returns a pointer to that log in the private_data field in @file. 1377 * 1378 * Returns: 1379 * This function returns zero if successful. On error it will return a negative 1380 * error value. 1381 **/ 1382 static int 1383 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1384 { 1385 struct lpfc_vport *vport = inode->i_private; 1386 struct lpfc_debug *debug; 1387 int size; 1388 int rc = -ENOMEM; 1389 1390 if (!lpfc_debugfs_max_disc_trc) { 1391 rc = -ENOSPC; 1392 goto out; 1393 } 1394 1395 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1396 if (!debug) 1397 goto out; 1398 1399 /* Round to page boundary */ 1400 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1401 size = PAGE_ALIGN(size); 1402 1403 debug->buffer = kmalloc(size, GFP_KERNEL); 1404 if (!debug->buffer) { 1405 kfree(debug); 1406 goto out; 1407 } 1408 1409 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1410 file->private_data = debug; 1411 1412 rc = 0; 1413 out: 1414 return rc; 1415 } 1416 1417 /** 1418 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1419 * @inode: The inode pointer that contains a vport pointer. 1420 * @file: The file pointer to attach the log output. 1421 * 1422 * Description: 1423 * This routine is the entry point for the debugfs open file operation. It gets 1424 * the vport from the i_private field in @inode, allocates the necessary buffer 1425 * for the log, fills the buffer from the in-memory log for this vport, and then 1426 * returns a pointer to that log in the private_data field in @file. 1427 * 1428 * Returns: 1429 * This function returns zero if successful. On error it will return a negative 1430 * error value. 1431 **/ 1432 static int 1433 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1434 { 1435 struct lpfc_hba *phba = inode->i_private; 1436 struct lpfc_debug *debug; 1437 int size; 1438 int rc = -ENOMEM; 1439 1440 if (!lpfc_debugfs_max_slow_ring_trc) { 1441 rc = -ENOSPC; 1442 goto out; 1443 } 1444 1445 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1446 if (!debug) 1447 goto out; 1448 1449 /* Round to page boundary */ 1450 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1451 size = PAGE_ALIGN(size); 1452 1453 debug->buffer = kmalloc(size, GFP_KERNEL); 1454 if (!debug->buffer) { 1455 kfree(debug); 1456 goto out; 1457 } 1458 1459 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 1460 file->private_data = debug; 1461 1462 rc = 0; 1463 out: 1464 return rc; 1465 } 1466 1467 /** 1468 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 1469 * @inode: The inode pointer that contains a vport pointer. 1470 * @file: The file pointer to attach the log output. 1471 * 1472 * Description: 1473 * This routine is the entry point for the debugfs open file operation. It gets 1474 * the vport from the i_private field in @inode, allocates the necessary buffer 1475 * for the log, fills the buffer from the in-memory log for this vport, and then 1476 * returns a pointer to that log in the private_data field in @file. 1477 * 1478 * Returns: 1479 * This function returns zero if successful. On error it will return a negative 1480 * error value. 1481 **/ 1482 static int 1483 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 1484 { 1485 struct lpfc_hba *phba = inode->i_private; 1486 struct lpfc_debug *debug; 1487 int rc = -ENOMEM; 1488 1489 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1490 if (!debug) 1491 goto out; 1492 1493 /* Round to page boundary */ 1494 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 1495 if (!debug->buffer) { 1496 kfree(debug); 1497 goto out; 1498 } 1499 1500 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 1501 LPFC_HBQINFO_SIZE); 1502 file->private_data = debug; 1503 1504 rc = 0; 1505 out: 1506 return rc; 1507 } 1508 1509 /** 1510 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 1511 * @inode: The inode pointer that contains a vport pointer. 1512 * @file: The file pointer to attach the log output. 1513 * 1514 * Description: 1515 * This routine is the entry point for the debugfs open file operation. It gets 1516 * the vport from the i_private field in @inode, allocates the necessary buffer 1517 * for the log, fills the buffer from the in-memory log for this vport, and then 1518 * returns a pointer to that log in the private_data field in @file. 1519 * 1520 * Returns: 1521 * This function returns zero if successful. On error it will return a negative 1522 * error value. 1523 **/ 1524 static int 1525 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 1526 { 1527 struct lpfc_hba *phba = inode->i_private; 1528 struct lpfc_debug *debug; 1529 int rc = -ENOMEM; 1530 1531 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1532 if (!debug) 1533 goto out; 1534 1535 /* Round to page boundary */ 1536 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 1537 if (!debug->buffer) { 1538 kfree(debug); 1539 goto out; 1540 } 1541 1542 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 1543 LPFC_DUMPHBASLIM_SIZE); 1544 file->private_data = debug; 1545 1546 rc = 0; 1547 out: 1548 return rc; 1549 } 1550 1551 /** 1552 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 1553 * @inode: The inode pointer that contains a vport pointer. 1554 * @file: The file pointer to attach the log output. 1555 * 1556 * Description: 1557 * This routine is the entry point for the debugfs open file operation. It gets 1558 * the vport from the i_private field in @inode, allocates the necessary buffer 1559 * for the log, fills the buffer from the in-memory log for this vport, and then 1560 * returns a pointer to that log in the private_data field in @file. 1561 * 1562 * Returns: 1563 * This function returns zero if successful. On error it will return a negative 1564 * error value. 1565 **/ 1566 static int 1567 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 1568 { 1569 struct lpfc_hba *phba = inode->i_private; 1570 struct lpfc_debug *debug; 1571 int rc = -ENOMEM; 1572 1573 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1574 if (!debug) 1575 goto out; 1576 1577 /* Round to page boundary */ 1578 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 1579 if (!debug->buffer) { 1580 kfree(debug); 1581 goto out; 1582 } 1583 1584 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 1585 LPFC_DUMPHOSTSLIM_SIZE); 1586 file->private_data = debug; 1587 1588 rc = 0; 1589 out: 1590 return rc; 1591 } 1592 1593 static int 1594 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) 1595 { 1596 struct lpfc_debug *debug; 1597 int rc = -ENOMEM; 1598 1599 if (!_dump_buf_data) 1600 return -EBUSY; 1601 1602 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1603 if (!debug) 1604 goto out; 1605 1606 /* Round to page boundary */ 1607 pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n", 1608 __func__, _dump_buf_data); 1609 debug->buffer = _dump_buf_data; 1610 if (!debug->buffer) { 1611 kfree(debug); 1612 goto out; 1613 } 1614 1615 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; 1616 file->private_data = debug; 1617 1618 rc = 0; 1619 out: 1620 return rc; 1621 } 1622 1623 static int 1624 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) 1625 { 1626 struct lpfc_debug *debug; 1627 int rc = -ENOMEM; 1628 1629 if (!_dump_buf_dif) 1630 return -EBUSY; 1631 1632 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1633 if (!debug) 1634 goto out; 1635 1636 /* Round to page boundary */ 1637 pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n", 1638 __func__, _dump_buf_dif, file); 1639 debug->buffer = _dump_buf_dif; 1640 if (!debug->buffer) { 1641 kfree(debug); 1642 goto out; 1643 } 1644 1645 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; 1646 file->private_data = debug; 1647 1648 rc = 0; 1649 out: 1650 return rc; 1651 } 1652 1653 static ssize_t 1654 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, 1655 size_t nbytes, loff_t *ppos) 1656 { 1657 /* 1658 * The Data/DIF buffers only save one failing IO 1659 * The write op is used as a reset mechanism after an IO has 1660 * already been saved to the next one can be saved 1661 */ 1662 spin_lock(&_dump_buf_lock); 1663 1664 memset((void *)_dump_buf_data, 0, 1665 ((1 << PAGE_SHIFT) << _dump_buf_data_order)); 1666 memset((void *)_dump_buf_dif, 0, 1667 ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); 1668 1669 _dump_buf_done = 0; 1670 1671 spin_unlock(&_dump_buf_lock); 1672 1673 return nbytes; 1674 } 1675 1676 static ssize_t 1677 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 1678 size_t nbytes, loff_t *ppos) 1679 { 1680 struct dentry *dent = file->f_path.dentry; 1681 struct lpfc_hba *phba = file->private_data; 1682 char cbuf[32]; 1683 uint64_t tmp = 0; 1684 int cnt = 0; 1685 1686 if (dent == phba->debug_writeGuard) 1687 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 1688 else if (dent == phba->debug_writeApp) 1689 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 1690 else if (dent == phba->debug_writeRef) 1691 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 1692 else if (dent == phba->debug_readGuard) 1693 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 1694 else if (dent == phba->debug_readApp) 1695 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 1696 else if (dent == phba->debug_readRef) 1697 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 1698 else if (dent == phba->debug_InjErrNPortID) 1699 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); 1700 else if (dent == phba->debug_InjErrWWPN) { 1701 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 1702 tmp = cpu_to_be64(tmp); 1703 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); 1704 } else if (dent == phba->debug_InjErrLBA) { 1705 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 1706 cnt = snprintf(cbuf, 32, "off\n"); 1707 else 1708 cnt = snprintf(cbuf, 32, "0x%llx\n", 1709 (uint64_t) phba->lpfc_injerr_lba); 1710 } else 1711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1712 "0547 Unknown debugfs error injection entry\n"); 1713 1714 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 1715 } 1716 1717 static ssize_t 1718 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 1719 size_t nbytes, loff_t *ppos) 1720 { 1721 struct dentry *dent = file->f_path.dentry; 1722 struct lpfc_hba *phba = file->private_data; 1723 char dstbuf[33]; 1724 uint64_t tmp = 0; 1725 int size; 1726 1727 memset(dstbuf, 0, 33); 1728 size = (nbytes < 32) ? nbytes : 32; 1729 if (copy_from_user(dstbuf, buf, size)) 1730 return 0; 1731 1732 if (dent == phba->debug_InjErrLBA) { 1733 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 1734 tmp = (uint64_t)(-1); 1735 } 1736 1737 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 1738 return 0; 1739 1740 if (dent == phba->debug_writeGuard) 1741 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 1742 else if (dent == phba->debug_writeApp) 1743 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 1744 else if (dent == phba->debug_writeRef) 1745 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 1746 else if (dent == phba->debug_readGuard) 1747 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 1748 else if (dent == phba->debug_readApp) 1749 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 1750 else if (dent == phba->debug_readRef) 1751 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 1752 else if (dent == phba->debug_InjErrLBA) 1753 phba->lpfc_injerr_lba = (sector_t)tmp; 1754 else if (dent == phba->debug_InjErrNPortID) 1755 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 1756 else if (dent == phba->debug_InjErrWWPN) { 1757 tmp = cpu_to_be64(tmp); 1758 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 1759 } else 1760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1761 "0548 Unknown debugfs error injection entry\n"); 1762 1763 return nbytes; 1764 } 1765 1766 static int 1767 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 1768 { 1769 return 0; 1770 } 1771 1772 /** 1773 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 1774 * @inode: The inode pointer that contains a vport pointer. 1775 * @file: The file pointer to attach the log output. 1776 * 1777 * Description: 1778 * This routine is the entry point for the debugfs open file operation. It gets 1779 * the vport from the i_private field in @inode, allocates the necessary buffer 1780 * for the log, fills the buffer from the in-memory log for this vport, and then 1781 * returns a pointer to that log in the private_data field in @file. 1782 * 1783 * Returns: 1784 * This function returns zero if successful. On error it will return a negative 1785 * error value. 1786 **/ 1787 static int 1788 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 1789 { 1790 struct lpfc_vport *vport = inode->i_private; 1791 struct lpfc_debug *debug; 1792 int rc = -ENOMEM; 1793 1794 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1795 if (!debug) 1796 goto out; 1797 1798 /* Round to page boundary */ 1799 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 1800 if (!debug->buffer) { 1801 kfree(debug); 1802 goto out; 1803 } 1804 1805 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 1806 LPFC_NODELIST_SIZE); 1807 file->private_data = debug; 1808 1809 rc = 0; 1810 out: 1811 return rc; 1812 } 1813 1814 /** 1815 * lpfc_debugfs_lseek - Seek through a debugfs file 1816 * @file: The file pointer to seek through. 1817 * @off: The offset to seek to or the amount to seek by. 1818 * @whence: Indicates how to seek. 1819 * 1820 * Description: 1821 * This routine is the entry point for the debugfs lseek file operation. The 1822 * @whence parameter indicates whether @off is the offset to directly seek to, 1823 * or if it is a value to seek forward or reverse by. This function figures out 1824 * what the new offset of the debugfs file will be and assigns that value to the 1825 * f_pos field of @file. 1826 * 1827 * Returns: 1828 * This function returns the new offset if successful and returns a negative 1829 * error if unable to process the seek. 1830 **/ 1831 static loff_t 1832 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 1833 { 1834 struct lpfc_debug *debug = file->private_data; 1835 return fixed_size_llseek(file, off, whence, debug->len); 1836 } 1837 1838 /** 1839 * lpfc_debugfs_read - Read a debugfs file 1840 * @file: The file pointer to read from. 1841 * @buf: The buffer to copy the data to. 1842 * @nbytes: The number of bytes to read. 1843 * @ppos: The position in the file to start reading from. 1844 * 1845 * Description: 1846 * This routine reads data from from the buffer indicated in the private_data 1847 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1848 * data to @buf. 1849 * 1850 * Returns: 1851 * This function returns the amount of data that was read (this could be less 1852 * than @nbytes if the end of the file was reached) or a negative error value. 1853 **/ 1854 static ssize_t 1855 lpfc_debugfs_read(struct file *file, char __user *buf, 1856 size_t nbytes, loff_t *ppos) 1857 { 1858 struct lpfc_debug *debug = file->private_data; 1859 1860 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1861 debug->len); 1862 } 1863 1864 /** 1865 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1866 * @inode: The inode pointer that contains a vport pointer. (unused) 1867 * @file: The file pointer that contains the buffer to release. 1868 * 1869 * Description: 1870 * This routine frees the buffer that was allocated when the debugfs file was 1871 * opened. 1872 * 1873 * Returns: 1874 * This function returns zero. 1875 **/ 1876 static int 1877 lpfc_debugfs_release(struct inode *inode, struct file *file) 1878 { 1879 struct lpfc_debug *debug = file->private_data; 1880 1881 kfree(debug->buffer); 1882 kfree(debug); 1883 1884 return 0; 1885 } 1886 1887 static int 1888 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1889 { 1890 struct lpfc_debug *debug = file->private_data; 1891 1892 debug->buffer = NULL; 1893 kfree(debug); 1894 1895 return 0; 1896 } 1897 1898 1899 static int 1900 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 1901 { 1902 struct lpfc_vport *vport = inode->i_private; 1903 struct lpfc_debug *debug; 1904 int rc = -ENOMEM; 1905 1906 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1907 if (!debug) 1908 goto out; 1909 1910 /* Round to page boundary */ 1911 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 1912 if (!debug->buffer) { 1913 kfree(debug); 1914 goto out; 1915 } 1916 1917 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 1918 LPFC_NVMESTAT_SIZE); 1919 1920 debug->i_private = inode->i_private; 1921 file->private_data = debug; 1922 1923 rc = 0; 1924 out: 1925 return rc; 1926 } 1927 1928 static ssize_t 1929 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 1930 size_t nbytes, loff_t *ppos) 1931 { 1932 struct lpfc_debug *debug = file->private_data; 1933 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 1934 struct lpfc_hba *phba = vport->phba; 1935 struct lpfc_nvmet_tgtport *tgtp; 1936 char mybuf[64]; 1937 char *pbuf; 1938 1939 if (!phba->targetport) 1940 return -ENXIO; 1941 1942 if (nbytes > 64) 1943 nbytes = 64; 1944 1945 /* Protect copy from user */ 1946 if (!access_ok(VERIFY_READ, buf, nbytes)) 1947 return -EFAULT; 1948 1949 memset(mybuf, 0, sizeof(mybuf)); 1950 1951 if (copy_from_user(mybuf, buf, nbytes)) 1952 return -EFAULT; 1953 pbuf = &mybuf[0]; 1954 1955 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1956 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 1957 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 1958 atomic_set(&tgtp->rcv_ls_req_in, 0); 1959 atomic_set(&tgtp->rcv_ls_req_out, 0); 1960 atomic_set(&tgtp->rcv_ls_req_drop, 0); 1961 atomic_set(&tgtp->xmt_ls_abort, 0); 1962 atomic_set(&tgtp->xmt_ls_rsp, 0); 1963 atomic_set(&tgtp->xmt_ls_drop, 0); 1964 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 1965 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 1966 1967 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 1968 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 1969 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 1970 atomic_set(&tgtp->xmt_fcp_abort, 0); 1971 atomic_set(&tgtp->xmt_fcp_drop, 0); 1972 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 1973 atomic_set(&tgtp->xmt_fcp_read, 0); 1974 atomic_set(&tgtp->xmt_fcp_write, 0); 1975 atomic_set(&tgtp->xmt_fcp_rsp, 0); 1976 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 1977 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 1978 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 1979 1980 atomic_set(&tgtp->xmt_abort_rsp, 0); 1981 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 1982 atomic_set(&tgtp->xmt_abort_cmpl, 0); 1983 } 1984 return nbytes; 1985 } 1986 1987 static int 1988 lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file) 1989 { 1990 struct lpfc_vport *vport = inode->i_private; 1991 struct lpfc_debug *debug; 1992 int rc = -ENOMEM; 1993 1994 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1995 if (!debug) 1996 goto out; 1997 1998 /* Round to page boundary */ 1999 debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL); 2000 if (!debug->buffer) { 2001 kfree(debug); 2002 goto out; 2003 } 2004 2005 debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer, 2006 LPFC_NVMEKTIME_SIZE); 2007 2008 debug->i_private = inode->i_private; 2009 file->private_data = debug; 2010 2011 rc = 0; 2012 out: 2013 return rc; 2014 } 2015 2016 static ssize_t 2017 lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf, 2018 size_t nbytes, loff_t *ppos) 2019 { 2020 struct lpfc_debug *debug = file->private_data; 2021 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2022 struct lpfc_hba *phba = vport->phba; 2023 char mybuf[64]; 2024 char *pbuf; 2025 2026 if (nbytes > 64) 2027 nbytes = 64; 2028 2029 /* Protect copy from user */ 2030 if (!access_ok(VERIFY_READ, buf, nbytes)) 2031 return -EFAULT; 2032 2033 memset(mybuf, 0, sizeof(mybuf)); 2034 2035 if (copy_from_user(mybuf, buf, nbytes)) 2036 return -EFAULT; 2037 pbuf = &mybuf[0]; 2038 2039 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2040 phba->ktime_data_samples = 0; 2041 phba->ktime_status_samples = 0; 2042 phba->ktime_seg1_total = 0; 2043 phba->ktime_seg1_max = 0; 2044 phba->ktime_seg1_min = 0xffffffff; 2045 phba->ktime_seg2_total = 0; 2046 phba->ktime_seg2_max = 0; 2047 phba->ktime_seg2_min = 0xffffffff; 2048 phba->ktime_seg3_total = 0; 2049 phba->ktime_seg3_max = 0; 2050 phba->ktime_seg3_min = 0xffffffff; 2051 phba->ktime_seg4_total = 0; 2052 phba->ktime_seg4_max = 0; 2053 phba->ktime_seg4_min = 0xffffffff; 2054 phba->ktime_seg5_total = 0; 2055 phba->ktime_seg5_max = 0; 2056 phba->ktime_seg5_min = 0xffffffff; 2057 phba->ktime_seg6_total = 0; 2058 phba->ktime_seg6_max = 0; 2059 phba->ktime_seg6_min = 0xffffffff; 2060 phba->ktime_seg7_total = 0; 2061 phba->ktime_seg7_max = 0; 2062 phba->ktime_seg7_min = 0xffffffff; 2063 phba->ktime_seg8_total = 0; 2064 phba->ktime_seg8_max = 0; 2065 phba->ktime_seg8_min = 0xffffffff; 2066 phba->ktime_seg9_total = 0; 2067 phba->ktime_seg9_max = 0; 2068 phba->ktime_seg9_min = 0xffffffff; 2069 phba->ktime_seg10_total = 0; 2070 phba->ktime_seg10_max = 0; 2071 phba->ktime_seg10_min = 0xffffffff; 2072 2073 phba->ktime_on = 1; 2074 return strlen(pbuf); 2075 } else if ((strncmp(pbuf, "off", 2076 sizeof("off") - 1) == 0)) { 2077 phba->ktime_on = 0; 2078 return strlen(pbuf); 2079 } else if ((strncmp(pbuf, "zero", 2080 sizeof("zero") - 1) == 0)) { 2081 phba->ktime_data_samples = 0; 2082 phba->ktime_status_samples = 0; 2083 phba->ktime_seg1_total = 0; 2084 phba->ktime_seg1_max = 0; 2085 phba->ktime_seg1_min = 0xffffffff; 2086 phba->ktime_seg2_total = 0; 2087 phba->ktime_seg2_max = 0; 2088 phba->ktime_seg2_min = 0xffffffff; 2089 phba->ktime_seg3_total = 0; 2090 phba->ktime_seg3_max = 0; 2091 phba->ktime_seg3_min = 0xffffffff; 2092 phba->ktime_seg4_total = 0; 2093 phba->ktime_seg4_max = 0; 2094 phba->ktime_seg4_min = 0xffffffff; 2095 phba->ktime_seg5_total = 0; 2096 phba->ktime_seg5_max = 0; 2097 phba->ktime_seg5_min = 0xffffffff; 2098 phba->ktime_seg6_total = 0; 2099 phba->ktime_seg6_max = 0; 2100 phba->ktime_seg6_min = 0xffffffff; 2101 phba->ktime_seg7_total = 0; 2102 phba->ktime_seg7_max = 0; 2103 phba->ktime_seg7_min = 0xffffffff; 2104 phba->ktime_seg8_total = 0; 2105 phba->ktime_seg8_max = 0; 2106 phba->ktime_seg8_min = 0xffffffff; 2107 phba->ktime_seg9_total = 0; 2108 phba->ktime_seg9_max = 0; 2109 phba->ktime_seg9_min = 0xffffffff; 2110 phba->ktime_seg10_total = 0; 2111 phba->ktime_seg10_max = 0; 2112 phba->ktime_seg10_min = 0xffffffff; 2113 return strlen(pbuf); 2114 } 2115 return -EINVAL; 2116 } 2117 2118 static int 2119 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2120 { 2121 struct lpfc_hba *phba = inode->i_private; 2122 struct lpfc_debug *debug; 2123 int rc = -ENOMEM; 2124 2125 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2126 if (!debug) 2127 goto out; 2128 2129 /* Round to page boundary */ 2130 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2131 if (!debug->buffer) { 2132 kfree(debug); 2133 goto out; 2134 } 2135 2136 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2137 LPFC_NVMEIO_TRC_SIZE); 2138 2139 debug->i_private = inode->i_private; 2140 file->private_data = debug; 2141 2142 rc = 0; 2143 out: 2144 return rc; 2145 } 2146 2147 static ssize_t 2148 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2149 size_t nbytes, loff_t *ppos) 2150 { 2151 struct lpfc_debug *debug = file->private_data; 2152 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2153 int i; 2154 unsigned long sz; 2155 char mybuf[64]; 2156 char *pbuf; 2157 2158 if (nbytes > 64) 2159 nbytes = 64; 2160 2161 /* Protect copy from user */ 2162 if (!access_ok(VERIFY_READ, buf, nbytes)) 2163 return -EFAULT; 2164 2165 memset(mybuf, 0, sizeof(mybuf)); 2166 2167 if (copy_from_user(mybuf, buf, nbytes)) 2168 return -EFAULT; 2169 pbuf = &mybuf[0]; 2170 2171 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2173 "0570 nvmeio_trc_off\n"); 2174 phba->nvmeio_trc_output_idx = 0; 2175 phba->nvmeio_trc_on = 0; 2176 return strlen(pbuf); 2177 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2179 "0571 nvmeio_trc_on\n"); 2180 phba->nvmeio_trc_output_idx = 0; 2181 phba->nvmeio_trc_on = 1; 2182 return strlen(pbuf); 2183 } 2184 2185 /* We must be off to allocate the trace buffer */ 2186 if (phba->nvmeio_trc_on != 0) 2187 return -EINVAL; 2188 2189 /* If not on or off, the parameter is the trace buffer size */ 2190 i = kstrtoul(pbuf, 0, &sz); 2191 if (i) 2192 return -EINVAL; 2193 phba->nvmeio_trc_size = (uint32_t)sz; 2194 2195 /* It must be a power of 2 - round down */ 2196 i = 0; 2197 while (sz > 1) { 2198 sz = sz >> 1; 2199 i++; 2200 } 2201 sz = (1 << i); 2202 if (phba->nvmeio_trc_size != sz) 2203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2204 "0572 nvmeio_trc_size changed to %ld\n", 2205 sz); 2206 phba->nvmeio_trc_size = (uint32_t)sz; 2207 2208 /* If one previously exists, free it */ 2209 kfree(phba->nvmeio_trc); 2210 2211 /* Allocate new trace buffer and initialize */ 2212 phba->nvmeio_trc = kmalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 2213 sz), GFP_KERNEL); 2214 if (!phba->nvmeio_trc) { 2215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2216 "0573 Cannot create debugfs " 2217 "nvmeio_trc buffer\n"); 2218 return -ENOMEM; 2219 } 2220 memset(phba->nvmeio_trc, 0, 2221 (sizeof(struct lpfc_debugfs_nvmeio_trc) * sz)); 2222 atomic_set(&phba->nvmeio_trc_cnt, 0); 2223 phba->nvmeio_trc_on = 0; 2224 phba->nvmeio_trc_output_idx = 0; 2225 2226 return strlen(pbuf); 2227 } 2228 2229 static int 2230 lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file) 2231 { 2232 struct lpfc_vport *vport = inode->i_private; 2233 struct lpfc_debug *debug; 2234 int rc = -ENOMEM; 2235 2236 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2237 if (!debug) 2238 goto out; 2239 2240 /* Round to page boundary */ 2241 debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL); 2242 if (!debug->buffer) { 2243 kfree(debug); 2244 goto out; 2245 } 2246 2247 debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer, 2248 LPFC_NVMEKTIME_SIZE); 2249 2250 debug->i_private = inode->i_private; 2251 file->private_data = debug; 2252 2253 rc = 0; 2254 out: 2255 return rc; 2256 } 2257 2258 static ssize_t 2259 lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf, 2260 size_t nbytes, loff_t *ppos) 2261 { 2262 struct lpfc_debug *debug = file->private_data; 2263 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2264 struct lpfc_hba *phba = vport->phba; 2265 char mybuf[64]; 2266 char *pbuf; 2267 int i; 2268 2269 if (nbytes > 64) 2270 nbytes = 64; 2271 2272 /* Protect copy from user */ 2273 if (!access_ok(VERIFY_READ, buf, nbytes)) 2274 return -EFAULT; 2275 2276 memset(mybuf, 0, sizeof(mybuf)); 2277 2278 if (copy_from_user(mybuf, buf, nbytes)) 2279 return -EFAULT; 2280 pbuf = &mybuf[0]; 2281 2282 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2283 if (phba->nvmet_support) 2284 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO; 2285 else 2286 phba->cpucheck_on |= LPFC_CHECK_NVME_IO; 2287 return strlen(pbuf); 2288 } else if ((strncmp(pbuf, "rcv", 2289 sizeof("rcv") - 1) == 0)) { 2290 if (phba->nvmet_support) 2291 phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV; 2292 else 2293 return -EINVAL; 2294 return strlen(pbuf); 2295 } else if ((strncmp(pbuf, "off", 2296 sizeof("off") - 1) == 0)) { 2297 phba->cpucheck_on = LPFC_CHECK_OFF; 2298 return strlen(pbuf); 2299 } else if ((strncmp(pbuf, "zero", 2300 sizeof("zero") - 1) == 0)) { 2301 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 2302 if (i >= LPFC_CHECK_CPU_CNT) 2303 break; 2304 phba->cpucheck_rcv_io[i] = 0; 2305 phba->cpucheck_xmt_io[i] = 0; 2306 phba->cpucheck_cmpl_io[i] = 0; 2307 phba->cpucheck_ccmpl_io[i] = 0; 2308 } 2309 return strlen(pbuf); 2310 } 2311 return -EINVAL; 2312 } 2313 2314 /* 2315 * --------------------------------- 2316 * iDiag debugfs file access methods 2317 * --------------------------------- 2318 * 2319 * All access methods are through the proper SLI4 PCI function's debugfs 2320 * iDiag directory: 2321 * 2322 * /sys/kernel/debug/lpfc/fn<#>/iDiag 2323 */ 2324 2325 /** 2326 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 2327 * @buf: The pointer to the user space buffer. 2328 * @nbytes: The number of bytes in the user space buffer. 2329 * @idiag_cmd: pointer to the idiag command struct. 2330 * 2331 * This routine reads data from debugfs user space buffer and parses the 2332 * buffer for getting the idiag command and arguments. The while space in 2333 * between the set of data is used as the parsing separator. 2334 * 2335 * This routine returns 0 when successful, it returns proper error code 2336 * back to the user space in error conditions. 2337 */ 2338 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 2339 struct lpfc_idiag_cmd *idiag_cmd) 2340 { 2341 char mybuf[64]; 2342 char *pbuf, *step_str; 2343 int i; 2344 size_t bsize; 2345 2346 /* Protect copy from user */ 2347 if (!access_ok(VERIFY_READ, buf, nbytes)) 2348 return -EFAULT; 2349 2350 memset(mybuf, 0, sizeof(mybuf)); 2351 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 2352 bsize = min(nbytes, (sizeof(mybuf)-1)); 2353 2354 if (copy_from_user(mybuf, buf, bsize)) 2355 return -EFAULT; 2356 pbuf = &mybuf[0]; 2357 step_str = strsep(&pbuf, "\t "); 2358 2359 /* The opcode must present */ 2360 if (!step_str) 2361 return -EINVAL; 2362 2363 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 2364 if (idiag_cmd->opcode == 0) 2365 return -EINVAL; 2366 2367 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 2368 step_str = strsep(&pbuf, "\t "); 2369 if (!step_str) 2370 return i; 2371 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 2372 } 2373 return i; 2374 } 2375 2376 /** 2377 * lpfc_idiag_open - idiag open debugfs 2378 * @inode: The inode pointer that contains a pointer to phba. 2379 * @file: The file pointer to attach the file operation. 2380 * 2381 * Description: 2382 * This routine is the entry point for the debugfs open file operation. It 2383 * gets the reference to phba from the i_private field in @inode, it then 2384 * allocates buffer for the file operation, performs the necessary PCI config 2385 * space read into the allocated buffer according to the idiag user command 2386 * setup, and then returns a pointer to buffer in the private_data field in 2387 * @file. 2388 * 2389 * Returns: 2390 * This function returns zero if successful. On error it will return an 2391 * negative error value. 2392 **/ 2393 static int 2394 lpfc_idiag_open(struct inode *inode, struct file *file) 2395 { 2396 struct lpfc_debug *debug; 2397 2398 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2399 if (!debug) 2400 return -ENOMEM; 2401 2402 debug->i_private = inode->i_private; 2403 debug->buffer = NULL; 2404 file->private_data = debug; 2405 2406 return 0; 2407 } 2408 2409 /** 2410 * lpfc_idiag_release - Release idiag access file operation 2411 * @inode: The inode pointer that contains a vport pointer. (unused) 2412 * @file: The file pointer that contains the buffer to release. 2413 * 2414 * Description: 2415 * This routine is the generic release routine for the idiag access file 2416 * operation, it frees the buffer that was allocated when the debugfs file 2417 * was opened. 2418 * 2419 * Returns: 2420 * This function returns zero. 2421 **/ 2422 static int 2423 lpfc_idiag_release(struct inode *inode, struct file *file) 2424 { 2425 struct lpfc_debug *debug = file->private_data; 2426 2427 /* Free the buffers to the file operation */ 2428 kfree(debug->buffer); 2429 kfree(debug); 2430 2431 return 0; 2432 } 2433 2434 /** 2435 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 2436 * @inode: The inode pointer that contains a vport pointer. (unused) 2437 * @file: The file pointer that contains the buffer to release. 2438 * 2439 * Description: 2440 * This routine frees the buffer that was allocated when the debugfs file 2441 * was opened. It also reset the fields in the idiag command struct in the 2442 * case of command for write operation. 2443 * 2444 * Returns: 2445 * This function returns zero. 2446 **/ 2447 static int 2448 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 2449 { 2450 struct lpfc_debug *debug = file->private_data; 2451 2452 if (debug->op == LPFC_IDIAG_OP_WR) { 2453 switch (idiag.cmd.opcode) { 2454 case LPFC_IDIAG_CMD_PCICFG_WR: 2455 case LPFC_IDIAG_CMD_PCICFG_ST: 2456 case LPFC_IDIAG_CMD_PCICFG_CL: 2457 case LPFC_IDIAG_CMD_QUEACC_WR: 2458 case LPFC_IDIAG_CMD_QUEACC_ST: 2459 case LPFC_IDIAG_CMD_QUEACC_CL: 2460 memset(&idiag, 0, sizeof(idiag)); 2461 break; 2462 default: 2463 break; 2464 } 2465 } 2466 2467 /* Free the buffers to the file operation */ 2468 kfree(debug->buffer); 2469 kfree(debug); 2470 2471 return 0; 2472 } 2473 2474 /** 2475 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 2476 * @file: The file pointer to read from. 2477 * @buf: The buffer to copy the data to. 2478 * @nbytes: The number of bytes to read. 2479 * @ppos: The position in the file to start reading from. 2480 * 2481 * Description: 2482 * This routine reads data from the @phba pci config space according to the 2483 * idiag command, and copies to user @buf. Depending on the PCI config space 2484 * read command setup, it does either a single register read of a byte 2485 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 2486 * registers from the 4K extended PCI config space. 2487 * 2488 * Returns: 2489 * This function returns the amount of data that was read (this could be less 2490 * than @nbytes if the end of the file was reached) or a negative error value. 2491 **/ 2492 static ssize_t 2493 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 2494 loff_t *ppos) 2495 { 2496 struct lpfc_debug *debug = file->private_data; 2497 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2498 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 2499 int where, count; 2500 char *pbuffer; 2501 struct pci_dev *pdev; 2502 uint32_t u32val; 2503 uint16_t u16val; 2504 uint8_t u8val; 2505 2506 pdev = phba->pcidev; 2507 if (!pdev) 2508 return 0; 2509 2510 /* This is a user read operation */ 2511 debug->op = LPFC_IDIAG_OP_RD; 2512 2513 if (!debug->buffer) 2514 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 2515 if (!debug->buffer) 2516 return 0; 2517 pbuffer = debug->buffer; 2518 2519 if (*ppos) 2520 return 0; 2521 2522 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2523 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2524 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2525 } else 2526 return 0; 2527 2528 /* Read single PCI config space register */ 2529 switch (count) { 2530 case SIZE_U8: /* byte (8 bits) */ 2531 pci_read_config_byte(pdev, where, &u8val); 2532 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2533 "%03x: %02x\n", where, u8val); 2534 break; 2535 case SIZE_U16: /* word (16 bits) */ 2536 pci_read_config_word(pdev, where, &u16val); 2537 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2538 "%03x: %04x\n", where, u16val); 2539 break; 2540 case SIZE_U32: /* double word (32 bits) */ 2541 pci_read_config_dword(pdev, where, &u32val); 2542 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2543 "%03x: %08x\n", where, u32val); 2544 break; 2545 case LPFC_PCI_CFG_BROWSE: /* browse all */ 2546 goto pcicfg_browse; 2547 break; 2548 default: 2549 /* illegal count */ 2550 len = 0; 2551 break; 2552 } 2553 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2554 2555 pcicfg_browse: 2556 2557 /* Browse all PCI config space registers */ 2558 offset_label = idiag.offset.last_rd; 2559 offset = offset_label; 2560 2561 /* Read PCI config space */ 2562 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2563 "%03x: ", offset_label); 2564 while (index > 0) { 2565 pci_read_config_dword(pdev, offset, &u32val); 2566 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2567 "%08x ", u32val); 2568 offset += sizeof(uint32_t); 2569 if (offset >= LPFC_PCI_CFG_SIZE) { 2570 len += snprintf(pbuffer+len, 2571 LPFC_PCI_CFG_SIZE-len, "\n"); 2572 break; 2573 } 2574 index -= sizeof(uint32_t); 2575 if (!index) 2576 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2577 "\n"); 2578 else if (!(index % (8 * sizeof(uint32_t)))) { 2579 offset_label += (8 * sizeof(uint32_t)); 2580 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2581 "\n%03x: ", offset_label); 2582 } 2583 } 2584 2585 /* Set up the offset for next portion of pci cfg read */ 2586 if (index == 0) { 2587 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 2588 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 2589 idiag.offset.last_rd = 0; 2590 } else 2591 idiag.offset.last_rd = 0; 2592 2593 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2594 } 2595 2596 /** 2597 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 2598 * @file: The file pointer to read from. 2599 * @buf: The buffer to copy the user data from. 2600 * @nbytes: The number of bytes to get. 2601 * @ppos: The position in the file to start reading from. 2602 * 2603 * This routine get the debugfs idiag command struct from user space and 2604 * then perform the syntax check for PCI config space read or write command 2605 * accordingly. In the case of PCI config space read command, it sets up 2606 * the command in the idiag command struct for the debugfs read operation. 2607 * In the case of PCI config space write operation, it executes the write 2608 * operation into the PCI config space accordingly. 2609 * 2610 * It returns the @nbytges passing in from debugfs user space when successful. 2611 * In case of error conditions, it returns proper error code back to the user 2612 * space. 2613 */ 2614 static ssize_t 2615 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 2616 size_t nbytes, loff_t *ppos) 2617 { 2618 struct lpfc_debug *debug = file->private_data; 2619 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2620 uint32_t where, value, count; 2621 uint32_t u32val; 2622 uint16_t u16val; 2623 uint8_t u8val; 2624 struct pci_dev *pdev; 2625 int rc; 2626 2627 pdev = phba->pcidev; 2628 if (!pdev) 2629 return -EFAULT; 2630 2631 /* This is a user write operation */ 2632 debug->op = LPFC_IDIAG_OP_WR; 2633 2634 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2635 if (rc < 0) 2636 return rc; 2637 2638 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2639 /* Sanity check on PCI config read command line arguments */ 2640 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 2641 goto error_out; 2642 /* Read command from PCI config space, set up command fields */ 2643 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2644 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2645 if (count == LPFC_PCI_CFG_BROWSE) { 2646 if (where % sizeof(uint32_t)) 2647 goto error_out; 2648 /* Starting offset to browse */ 2649 idiag.offset.last_rd = where; 2650 } else if ((count != sizeof(uint8_t)) && 2651 (count != sizeof(uint16_t)) && 2652 (count != sizeof(uint32_t))) 2653 goto error_out; 2654 if (count == sizeof(uint8_t)) { 2655 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2656 goto error_out; 2657 if (where % sizeof(uint8_t)) 2658 goto error_out; 2659 } 2660 if (count == sizeof(uint16_t)) { 2661 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2662 goto error_out; 2663 if (where % sizeof(uint16_t)) 2664 goto error_out; 2665 } 2666 if (count == sizeof(uint32_t)) { 2667 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2668 goto error_out; 2669 if (where % sizeof(uint32_t)) 2670 goto error_out; 2671 } 2672 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 2673 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 2674 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2675 /* Sanity check on PCI config write command line arguments */ 2676 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 2677 goto error_out; 2678 /* Write command to PCI config space, read-modify-write */ 2679 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2680 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2681 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 2682 /* Sanity checks */ 2683 if ((count != sizeof(uint8_t)) && 2684 (count != sizeof(uint16_t)) && 2685 (count != sizeof(uint32_t))) 2686 goto error_out; 2687 if (count == sizeof(uint8_t)) { 2688 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2689 goto error_out; 2690 if (where % sizeof(uint8_t)) 2691 goto error_out; 2692 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2693 pci_write_config_byte(pdev, where, 2694 (uint8_t)value); 2695 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2696 rc = pci_read_config_byte(pdev, where, &u8val); 2697 if (!rc) { 2698 u8val |= (uint8_t)value; 2699 pci_write_config_byte(pdev, where, 2700 u8val); 2701 } 2702 } 2703 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2704 rc = pci_read_config_byte(pdev, where, &u8val); 2705 if (!rc) { 2706 u8val &= (uint8_t)(~value); 2707 pci_write_config_byte(pdev, where, 2708 u8val); 2709 } 2710 } 2711 } 2712 if (count == sizeof(uint16_t)) { 2713 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2714 goto error_out; 2715 if (where % sizeof(uint16_t)) 2716 goto error_out; 2717 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2718 pci_write_config_word(pdev, where, 2719 (uint16_t)value); 2720 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2721 rc = pci_read_config_word(pdev, where, &u16val); 2722 if (!rc) { 2723 u16val |= (uint16_t)value; 2724 pci_write_config_word(pdev, where, 2725 u16val); 2726 } 2727 } 2728 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2729 rc = pci_read_config_word(pdev, where, &u16val); 2730 if (!rc) { 2731 u16val &= (uint16_t)(~value); 2732 pci_write_config_word(pdev, where, 2733 u16val); 2734 } 2735 } 2736 } 2737 if (count == sizeof(uint32_t)) { 2738 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2739 goto error_out; 2740 if (where % sizeof(uint32_t)) 2741 goto error_out; 2742 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2743 pci_write_config_dword(pdev, where, value); 2744 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2745 rc = pci_read_config_dword(pdev, where, 2746 &u32val); 2747 if (!rc) { 2748 u32val |= value; 2749 pci_write_config_dword(pdev, where, 2750 u32val); 2751 } 2752 } 2753 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2754 rc = pci_read_config_dword(pdev, where, 2755 &u32val); 2756 if (!rc) { 2757 u32val &= ~value; 2758 pci_write_config_dword(pdev, where, 2759 u32val); 2760 } 2761 } 2762 } 2763 } else 2764 /* All other opecodes are illegal for now */ 2765 goto error_out; 2766 2767 return nbytes; 2768 error_out: 2769 memset(&idiag, 0, sizeof(idiag)); 2770 return -EINVAL; 2771 } 2772 2773 /** 2774 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 2775 * @file: The file pointer to read from. 2776 * @buf: The buffer to copy the data to. 2777 * @nbytes: The number of bytes to read. 2778 * @ppos: The position in the file to start reading from. 2779 * 2780 * Description: 2781 * This routine reads data from the @phba pci bar memory mapped space 2782 * according to the idiag command, and copies to user @buf. 2783 * 2784 * Returns: 2785 * This function returns the amount of data that was read (this could be less 2786 * than @nbytes if the end of the file was reached) or a negative error value. 2787 **/ 2788 static ssize_t 2789 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 2790 loff_t *ppos) 2791 { 2792 struct lpfc_debug *debug = file->private_data; 2793 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2794 int offset_label, offset, offset_run, len = 0, index; 2795 int bar_num, acc_range, bar_size; 2796 char *pbuffer; 2797 void __iomem *mem_mapped_bar; 2798 uint32_t if_type; 2799 struct pci_dev *pdev; 2800 uint32_t u32val; 2801 2802 pdev = phba->pcidev; 2803 if (!pdev) 2804 return 0; 2805 2806 /* This is a user read operation */ 2807 debug->op = LPFC_IDIAG_OP_RD; 2808 2809 if (!debug->buffer) 2810 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 2811 if (!debug->buffer) 2812 return 0; 2813 pbuffer = debug->buffer; 2814 2815 if (*ppos) 2816 return 0; 2817 2818 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 2819 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 2820 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 2821 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 2822 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 2823 } else 2824 return 0; 2825 2826 if (acc_range == 0) 2827 return 0; 2828 2829 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2830 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2831 if (bar_num == IDIAG_BARACC_BAR_0) 2832 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2833 else if (bar_num == IDIAG_BARACC_BAR_1) 2834 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 2835 else if (bar_num == IDIAG_BARACC_BAR_2) 2836 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 2837 else 2838 return 0; 2839 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2840 if (bar_num == IDIAG_BARACC_BAR_0) 2841 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2842 else 2843 return 0; 2844 } else 2845 return 0; 2846 2847 /* Read single PCI bar space register */ 2848 if (acc_range == SINGLE_WORD) { 2849 offset_run = offset; 2850 u32val = readl(mem_mapped_bar + offset_run); 2851 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2852 "%05x: %08x\n", offset_run, u32val); 2853 } else 2854 goto baracc_browse; 2855 2856 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2857 2858 baracc_browse: 2859 2860 /* Browse all PCI bar space registers */ 2861 offset_label = idiag.offset.last_rd; 2862 offset_run = offset_label; 2863 2864 /* Read PCI bar memory mapped space */ 2865 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2866 "%05x: ", offset_label); 2867 index = LPFC_PCI_BAR_RD_SIZE; 2868 while (index > 0) { 2869 u32val = readl(mem_mapped_bar + offset_run); 2870 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2871 "%08x ", u32val); 2872 offset_run += sizeof(uint32_t); 2873 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2874 if (offset_run >= bar_size) { 2875 len += snprintf(pbuffer+len, 2876 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2877 break; 2878 } 2879 } else { 2880 if (offset_run >= offset + 2881 (acc_range * sizeof(uint32_t))) { 2882 len += snprintf(pbuffer+len, 2883 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2884 break; 2885 } 2886 } 2887 index -= sizeof(uint32_t); 2888 if (!index) 2889 len += snprintf(pbuffer+len, 2890 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2891 else if (!(index % (8 * sizeof(uint32_t)))) { 2892 offset_label += (8 * sizeof(uint32_t)); 2893 len += snprintf(pbuffer+len, 2894 LPFC_PCI_BAR_RD_BUF_SIZE-len, 2895 "\n%05x: ", offset_label); 2896 } 2897 } 2898 2899 /* Set up the offset for next portion of pci bar read */ 2900 if (index == 0) { 2901 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 2902 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2903 if (idiag.offset.last_rd >= bar_size) 2904 idiag.offset.last_rd = 0; 2905 } else { 2906 if (offset_run >= offset + 2907 (acc_range * sizeof(uint32_t))) 2908 idiag.offset.last_rd = offset; 2909 } 2910 } else { 2911 if (acc_range == LPFC_PCI_BAR_BROWSE) 2912 idiag.offset.last_rd = 0; 2913 else 2914 idiag.offset.last_rd = offset; 2915 } 2916 2917 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2918 } 2919 2920 /** 2921 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 2922 * @file: The file pointer to read from. 2923 * @buf: The buffer to copy the user data from. 2924 * @nbytes: The number of bytes to get. 2925 * @ppos: The position in the file to start reading from. 2926 * 2927 * This routine get the debugfs idiag command struct from user space and 2928 * then perform the syntax check for PCI bar memory mapped space read or 2929 * write command accordingly. In the case of PCI bar memory mapped space 2930 * read command, it sets up the command in the idiag command struct for 2931 * the debugfs read operation. In the case of PCI bar memorpy mapped space 2932 * write operation, it executes the write operation into the PCI bar memory 2933 * mapped space accordingly. 2934 * 2935 * It returns the @nbytges passing in from debugfs user space when successful. 2936 * In case of error conditions, it returns proper error code back to the user 2937 * space. 2938 */ 2939 static ssize_t 2940 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 2941 size_t nbytes, loff_t *ppos) 2942 { 2943 struct lpfc_debug *debug = file->private_data; 2944 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2945 uint32_t bar_num, bar_size, offset, value, acc_range; 2946 struct pci_dev *pdev; 2947 void __iomem *mem_mapped_bar; 2948 uint32_t if_type; 2949 uint32_t u32val; 2950 int rc; 2951 2952 pdev = phba->pcidev; 2953 if (!pdev) 2954 return -EFAULT; 2955 2956 /* This is a user write operation */ 2957 debug->op = LPFC_IDIAG_OP_WR; 2958 2959 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2960 if (rc < 0) 2961 return rc; 2962 2963 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2964 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 2965 2966 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2967 if ((bar_num != IDIAG_BARACC_BAR_0) && 2968 (bar_num != IDIAG_BARACC_BAR_1) && 2969 (bar_num != IDIAG_BARACC_BAR_2)) 2970 goto error_out; 2971 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2972 if (bar_num != IDIAG_BARACC_BAR_0) 2973 goto error_out; 2974 } else 2975 goto error_out; 2976 2977 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2978 if (bar_num == IDIAG_BARACC_BAR_0) { 2979 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2980 LPFC_PCI_IF0_BAR0_SIZE; 2981 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2982 } else if (bar_num == IDIAG_BARACC_BAR_1) { 2983 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2984 LPFC_PCI_IF0_BAR1_SIZE; 2985 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 2986 } else if (bar_num == IDIAG_BARACC_BAR_2) { 2987 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2988 LPFC_PCI_IF0_BAR2_SIZE; 2989 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 2990 } else 2991 goto error_out; 2992 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2993 if (bar_num == IDIAG_BARACC_BAR_0) { 2994 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 2995 LPFC_PCI_IF2_BAR0_SIZE; 2996 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2997 } else 2998 goto error_out; 2999 } else 3000 goto error_out; 3001 3002 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3003 if (offset % sizeof(uint32_t)) 3004 goto error_out; 3005 3006 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3007 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3008 /* Sanity check on PCI config read command line arguments */ 3009 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3010 goto error_out; 3011 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3012 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3013 if (offset > bar_size - sizeof(uint32_t)) 3014 goto error_out; 3015 /* Starting offset to browse */ 3016 idiag.offset.last_rd = offset; 3017 } else if (acc_range > SINGLE_WORD) { 3018 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3019 goto error_out; 3020 /* Starting offset to browse */ 3021 idiag.offset.last_rd = offset; 3022 } else if (acc_range != SINGLE_WORD) 3023 goto error_out; 3024 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3025 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3026 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3027 /* Sanity check on PCI bar write command line arguments */ 3028 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3029 goto error_out; 3030 /* Write command to PCI bar space, read-modify-write */ 3031 acc_range = SINGLE_WORD; 3032 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3033 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3034 writel(value, mem_mapped_bar + offset); 3035 readl(mem_mapped_bar + offset); 3036 } 3037 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3038 u32val = readl(mem_mapped_bar + offset); 3039 u32val |= value; 3040 writel(u32val, mem_mapped_bar + offset); 3041 readl(mem_mapped_bar + offset); 3042 } 3043 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3044 u32val = readl(mem_mapped_bar + offset); 3045 u32val &= ~value; 3046 writel(u32val, mem_mapped_bar + offset); 3047 readl(mem_mapped_bar + offset); 3048 } 3049 } else 3050 /* All other opecodes are illegal for now */ 3051 goto error_out; 3052 3053 return nbytes; 3054 error_out: 3055 memset(&idiag, 0, sizeof(idiag)); 3056 return -EINVAL; 3057 } 3058 3059 static int 3060 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3061 char *pbuffer, int len) 3062 { 3063 if (!qp) 3064 return len; 3065 3066 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3067 "\t\t%s WQ info: ", wqtype); 3068 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3069 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3070 qp->assoc_qid, qp->q_cnt_1, 3071 (unsigned long long)qp->q_cnt_4); 3072 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3073 "\t\tWQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " 3074 "HOST-IDX[%04d], PORT-IDX[%04d]", 3075 qp->queue_id, qp->entry_count, 3076 qp->entry_size, qp->host_index, 3077 qp->hba_index); 3078 len += snprintf(pbuffer + len, 3079 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3080 return len; 3081 } 3082 3083 static int 3084 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3085 int *len, int max_cnt, int cq_id) 3086 { 3087 struct lpfc_queue *qp; 3088 int qidx; 3089 3090 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3091 qp = phba->sli4_hba.fcp_wq[qidx]; 3092 if (qp->assoc_qid != cq_id) 3093 continue; 3094 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3095 if (*len >= max_cnt) 3096 return 1; 3097 } 3098 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3099 qp = phba->sli4_hba.nvme_wq[qidx]; 3100 if (qp->assoc_qid != cq_id) 3101 continue; 3102 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3103 if (*len >= max_cnt) 3104 return 1; 3105 } 3106 return 0; 3107 } 3108 3109 static int 3110 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3111 char *pbuffer, int len) 3112 { 3113 if (!qp) 3114 return len; 3115 3116 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3117 "\t%s CQ info: ", cqtype); 3118 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3119 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3120 "xabt:x%x wq:x%llx]\n", 3121 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3122 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3123 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3124 "\tCQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " 3125 "HOST-IDX[%04d], PORT-IDX[%04d]", 3126 qp->queue_id, qp->entry_count, 3127 qp->entry_size, qp->host_index, 3128 qp->hba_index); 3129 3130 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3131 3132 return len; 3133 } 3134 3135 static int 3136 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3137 char *rqtype, char *pbuffer, int len) 3138 { 3139 if (!qp || !datqp) 3140 return len; 3141 3142 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3143 "\t\t%s RQ info: ", rqtype); 3144 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3145 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3146 "trunc:x%x rcv:x%llx]\n", 3147 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3148 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3149 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3150 "\t\tHQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " 3151 "HOST-IDX[%04d], PORT-IDX[%04d]\n", 3152 qp->queue_id, qp->entry_count, qp->entry_size, 3153 qp->host_index, qp->hba_index); 3154 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3155 "\t\tDQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " 3156 "HOST-IDX[%04d], PORT-IDX[%04d]\n", 3157 datqp->queue_id, datqp->entry_count, 3158 datqp->entry_size, datqp->host_index, 3159 datqp->hba_index); 3160 return len; 3161 } 3162 3163 static int 3164 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3165 int *len, int max_cnt, int eqidx, int eq_id) 3166 { 3167 struct lpfc_queue *qp; 3168 int qidx, rc; 3169 3170 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3171 qp = phba->sli4_hba.fcp_cq[qidx]; 3172 if (qp->assoc_qid != eq_id) 3173 continue; 3174 3175 *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len); 3176 3177 /* Reset max counter */ 3178 qp->CQ_max_cqe = 0; 3179 3180 if (*len >= max_cnt) 3181 return 1; 3182 3183 rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len, 3184 max_cnt, qp->queue_id); 3185 if (rc) 3186 return 1; 3187 } 3188 3189 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3190 qp = phba->sli4_hba.nvme_cq[qidx]; 3191 if (qp->assoc_qid != eq_id) 3192 continue; 3193 3194 *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len); 3195 3196 /* Reset max counter */ 3197 qp->CQ_max_cqe = 0; 3198 3199 if (*len >= max_cnt) 3200 return 1; 3201 3202 rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len, 3203 max_cnt, qp->queue_id); 3204 if (rc) 3205 return 1; 3206 } 3207 3208 if (eqidx < phba->cfg_nvmet_mrq) { 3209 /* NVMET CQset */ 3210 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3211 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3212 3213 /* Reset max counter */ 3214 qp->CQ_max_cqe = 0; 3215 3216 if (*len >= max_cnt) 3217 return 1; 3218 3219 /* RQ header */ 3220 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3221 *len = __lpfc_idiag_print_rqpair(qp, 3222 phba->sli4_hba.nvmet_mrq_data[eqidx], 3223 "NVMET MRQ", pbuffer, *len); 3224 3225 if (*len >= max_cnt) 3226 return 1; 3227 } 3228 3229 return 0; 3230 } 3231 3232 static int 3233 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 3234 char *pbuffer, int len) 3235 { 3236 if (!qp) 3237 return len; 3238 3239 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3240 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 3241 "bs:x%x proc:x%llx]\n", 3242 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 3243 (unsigned long long)qp->q_cnt_4); 3244 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3245 "EQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " 3246 "HOST-IDX[%04d], PORT-IDX[%04d]", 3247 qp->queue_id, qp->entry_count, qp->entry_size, 3248 qp->host_index, qp->hba_index); 3249 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3250 3251 return len; 3252 } 3253 3254 /** 3255 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 3256 * @file: The file pointer to read from. 3257 * @buf: The buffer to copy the data to. 3258 * @nbytes: The number of bytes to read. 3259 * @ppos: The position in the file to start reading from. 3260 * 3261 * Description: 3262 * This routine reads data from the @phba SLI4 PCI function queue information, 3263 * and copies to user @buf. 3264 * This routine only returns 1 EQs worth of information. It remembers the last 3265 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 3266 * retrieve all EQs allocated for the phba. 3267 * 3268 * Returns: 3269 * This function returns the amount of data that was read (this could be less 3270 * than @nbytes if the end of the file was reached) or a negative error value. 3271 **/ 3272 static ssize_t 3273 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 3274 loff_t *ppos) 3275 { 3276 struct lpfc_debug *debug = file->private_data; 3277 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3278 char *pbuffer; 3279 int max_cnt, rc, x, len = 0; 3280 struct lpfc_queue *qp = NULL; 3281 3282 if (!debug->buffer) 3283 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 3284 if (!debug->buffer) 3285 return 0; 3286 pbuffer = debug->buffer; 3287 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 3288 3289 if (*ppos) 3290 return 0; 3291 3292 spin_lock_irq(&phba->hbalock); 3293 3294 /* Fast-path event queue */ 3295 if (phba->sli4_hba.hba_eq && phba->io_channel_irqs) { 3296 3297 x = phba->lpfc_idiag_last_eq; 3298 if (phba->cfg_fof && (x >= phba->io_channel_irqs)) { 3299 phba->lpfc_idiag_last_eq = 0; 3300 goto fof; 3301 } 3302 phba->lpfc_idiag_last_eq++; 3303 if (phba->lpfc_idiag_last_eq >= phba->io_channel_irqs) 3304 if (phba->cfg_fof == 0) 3305 phba->lpfc_idiag_last_eq = 0; 3306 3307 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3308 "EQ %d out of %d HBA EQs\n", 3309 x, phba->io_channel_irqs); 3310 3311 /* Fast-path EQ */ 3312 qp = phba->sli4_hba.hba_eq[x]; 3313 if (!qp) 3314 goto out; 3315 3316 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 3317 3318 /* Reset max counter */ 3319 qp->EQ_max_eqe = 0; 3320 3321 if (len >= max_cnt) 3322 goto too_big; 3323 3324 /* will dump both fcp and nvme cqs/wqs for the eq */ 3325 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 3326 max_cnt, x, qp->queue_id); 3327 if (rc) 3328 goto too_big; 3329 3330 /* Only EQ 0 has slow path CQs configured */ 3331 if (x) 3332 goto out; 3333 3334 /* Slow-path mailbox CQ */ 3335 qp = phba->sli4_hba.mbx_cq; 3336 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 3337 if (len >= max_cnt) 3338 goto too_big; 3339 3340 /* Slow-path MBOX MQ */ 3341 qp = phba->sli4_hba.mbx_wq; 3342 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 3343 if (len >= max_cnt) 3344 goto too_big; 3345 3346 /* Slow-path ELS response CQ */ 3347 qp = phba->sli4_hba.els_cq; 3348 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 3349 /* Reset max counter */ 3350 if (qp) 3351 qp->CQ_max_cqe = 0; 3352 if (len >= max_cnt) 3353 goto too_big; 3354 3355 /* Slow-path ELS WQ */ 3356 qp = phba->sli4_hba.els_wq; 3357 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 3358 if (len >= max_cnt) 3359 goto too_big; 3360 3361 /* Slow-path NVME LS response CQ */ 3362 qp = phba->sli4_hba.nvmels_cq; 3363 len = __lpfc_idiag_print_cq(qp, "NVME LS", 3364 pbuffer, len); 3365 /* Reset max counter */ 3366 if (qp) 3367 qp->CQ_max_cqe = 0; 3368 if (len >= max_cnt) 3369 goto too_big; 3370 3371 /* Slow-path NVME LS WQ */ 3372 qp = phba->sli4_hba.nvmels_wq; 3373 len = __lpfc_idiag_print_wq(qp, "NVME LS", 3374 pbuffer, len); 3375 if (len >= max_cnt) 3376 goto too_big; 3377 3378 qp = phba->sli4_hba.hdr_rq; 3379 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 3380 "RQpair", pbuffer, len); 3381 if (len >= max_cnt) 3382 goto too_big; 3383 3384 goto out; 3385 } 3386 3387 fof: 3388 if (phba->cfg_fof) { 3389 /* FOF EQ */ 3390 qp = phba->sli4_hba.fof_eq; 3391 len = __lpfc_idiag_print_eq(qp, "FOF", pbuffer, len); 3392 3393 /* Reset max counter */ 3394 if (qp) 3395 qp->EQ_max_eqe = 0; 3396 3397 if (len >= max_cnt) 3398 goto too_big; 3399 3400 /* OAS CQ */ 3401 qp = phba->sli4_hba.oas_cq; 3402 len = __lpfc_idiag_print_cq(qp, "OAS", pbuffer, len); 3403 /* Reset max counter */ 3404 if (qp) 3405 qp->CQ_max_cqe = 0; 3406 if (len >= max_cnt) 3407 goto too_big; 3408 3409 /* OAS WQ */ 3410 qp = phba->sli4_hba.oas_wq; 3411 len = __lpfc_idiag_print_wq(qp, "OAS", pbuffer, len); 3412 if (len >= max_cnt) 3413 goto too_big; 3414 } 3415 3416 spin_unlock_irq(&phba->hbalock); 3417 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3418 3419 too_big: 3420 len += snprintf(pbuffer + len, 3421 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 3422 out: 3423 spin_unlock_irq(&phba->hbalock); 3424 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3425 } 3426 3427 /** 3428 * lpfc_idiag_que_param_check - queue access command parameter sanity check 3429 * @q: The pointer to queue structure. 3430 * @index: The index into a queue entry. 3431 * @count: The number of queue entries to access. 3432 * 3433 * Description: 3434 * The routine performs sanity check on device queue access method commands. 3435 * 3436 * Returns: 3437 * This function returns -EINVAL when fails the sanity check, otherwise, it 3438 * returns 0. 3439 **/ 3440 static int 3441 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 3442 { 3443 /* Only support single entry read or browsing */ 3444 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 3445 return -EINVAL; 3446 if (index > q->entry_count - 1) 3447 return -EINVAL; 3448 return 0; 3449 } 3450 3451 /** 3452 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 3453 * @pbuffer: The pointer to buffer to copy the read data into. 3454 * @pque: The pointer to the queue to be read. 3455 * @index: The index into the queue entry. 3456 * 3457 * Description: 3458 * This routine reads out a single entry from the given queue's index location 3459 * and copies it into the buffer provided. 3460 * 3461 * Returns: 3462 * This function returns 0 when it fails, otherwise, it returns the length of 3463 * the data read into the buffer provided. 3464 **/ 3465 static int 3466 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 3467 uint32_t index) 3468 { 3469 int offset, esize; 3470 uint32_t *pentry; 3471 3472 if (!pbuffer || !pque) 3473 return 0; 3474 3475 esize = pque->entry_size; 3476 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3477 "QE-INDEX[%04d]:\n", index); 3478 3479 offset = 0; 3480 pentry = pque->qe[index].address; 3481 while (esize > 0) { 3482 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3483 "%08x ", *pentry); 3484 pentry++; 3485 offset += sizeof(uint32_t); 3486 esize -= sizeof(uint32_t); 3487 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 3488 len += snprintf(pbuffer+len, 3489 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3490 } 3491 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3492 3493 return len; 3494 } 3495 3496 /** 3497 * lpfc_idiag_queacc_read - idiag debugfs read port queue 3498 * @file: The file pointer to read from. 3499 * @buf: The buffer to copy the data to. 3500 * @nbytes: The number of bytes to read. 3501 * @ppos: The position in the file to start reading from. 3502 * 3503 * Description: 3504 * This routine reads data from the @phba device queue memory according to the 3505 * idiag command, and copies to user @buf. Depending on the queue dump read 3506 * command setup, it does either a single queue entry read or browing through 3507 * all entries of the queue. 3508 * 3509 * Returns: 3510 * This function returns the amount of data that was read (this could be less 3511 * than @nbytes if the end of the file was reached) or a negative error value. 3512 **/ 3513 static ssize_t 3514 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 3515 loff_t *ppos) 3516 { 3517 struct lpfc_debug *debug = file->private_data; 3518 uint32_t last_index, index, count; 3519 struct lpfc_queue *pque = NULL; 3520 char *pbuffer; 3521 int len = 0; 3522 3523 /* This is a user read operation */ 3524 debug->op = LPFC_IDIAG_OP_RD; 3525 3526 if (!debug->buffer) 3527 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 3528 if (!debug->buffer) 3529 return 0; 3530 pbuffer = debug->buffer; 3531 3532 if (*ppos) 3533 return 0; 3534 3535 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3536 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3537 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3538 pque = (struct lpfc_queue *)idiag.ptr_private; 3539 } else 3540 return 0; 3541 3542 /* Browse the queue starting from index */ 3543 if (count == LPFC_QUE_ACC_BROWSE) 3544 goto que_browse; 3545 3546 /* Read a single entry from the queue */ 3547 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3548 3549 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3550 3551 que_browse: 3552 3553 /* Browse all entries from the queue */ 3554 last_index = idiag.offset.last_rd; 3555 index = last_index; 3556 3557 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 3558 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3559 index++; 3560 if (index > pque->entry_count - 1) 3561 break; 3562 } 3563 3564 /* Set up the offset for next portion of pci cfg read */ 3565 if (index > pque->entry_count - 1) 3566 index = 0; 3567 idiag.offset.last_rd = index; 3568 3569 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3570 } 3571 3572 /** 3573 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 3574 * @file: The file pointer to read from. 3575 * @buf: The buffer to copy the user data from. 3576 * @nbytes: The number of bytes to get. 3577 * @ppos: The position in the file to start reading from. 3578 * 3579 * This routine get the debugfs idiag command struct from user space and then 3580 * perform the syntax check for port queue read (dump) or write (set) command 3581 * accordingly. In the case of port queue read command, it sets up the command 3582 * in the idiag command struct for the following debugfs read operation. In 3583 * the case of port queue write operation, it executes the write operation 3584 * into the port queue entry accordingly. 3585 * 3586 * It returns the @nbytges passing in from debugfs user space when successful. 3587 * In case of error conditions, it returns proper error code back to the user 3588 * space. 3589 **/ 3590 static ssize_t 3591 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 3592 size_t nbytes, loff_t *ppos) 3593 { 3594 struct lpfc_debug *debug = file->private_data; 3595 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3596 uint32_t qidx, quetp, queid, index, count, offset, value; 3597 uint32_t *pentry; 3598 struct lpfc_queue *pque, *qp; 3599 int rc; 3600 3601 /* This is a user write operation */ 3602 debug->op = LPFC_IDIAG_OP_WR; 3603 3604 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3605 if (rc < 0) 3606 return rc; 3607 3608 /* Get and sanity check on command feilds */ 3609 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 3610 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 3611 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3612 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3613 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 3614 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 3615 3616 /* Sanity check on command line arguments */ 3617 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3618 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3619 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3620 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 3621 goto error_out; 3622 if (count != 1) 3623 goto error_out; 3624 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3625 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 3626 goto error_out; 3627 } else 3628 goto error_out; 3629 3630 switch (quetp) { 3631 case LPFC_IDIAG_EQ: 3632 /* HBA event queue */ 3633 if (phba->sli4_hba.hba_eq) { 3634 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) { 3635 qp = phba->sli4_hba.hba_eq[qidx]; 3636 if (qp && qp->queue_id == queid) { 3637 /* Sanity check */ 3638 rc = lpfc_idiag_que_param_check(qp, 3639 index, count); 3640 if (rc) 3641 goto error_out; 3642 idiag.ptr_private = qp; 3643 goto pass_check; 3644 } 3645 } 3646 } 3647 goto error_out; 3648 break; 3649 case LPFC_IDIAG_CQ: 3650 /* MBX complete queue */ 3651 if (phba->sli4_hba.mbx_cq && 3652 phba->sli4_hba.mbx_cq->queue_id == queid) { 3653 /* Sanity check */ 3654 rc = lpfc_idiag_que_param_check( 3655 phba->sli4_hba.mbx_cq, index, count); 3656 if (rc) 3657 goto error_out; 3658 idiag.ptr_private = phba->sli4_hba.mbx_cq; 3659 goto pass_check; 3660 } 3661 /* ELS complete queue */ 3662 if (phba->sli4_hba.els_cq && 3663 phba->sli4_hba.els_cq->queue_id == queid) { 3664 /* Sanity check */ 3665 rc = lpfc_idiag_que_param_check( 3666 phba->sli4_hba.els_cq, index, count); 3667 if (rc) 3668 goto error_out; 3669 idiag.ptr_private = phba->sli4_hba.els_cq; 3670 goto pass_check; 3671 } 3672 /* NVME LS complete queue */ 3673 if (phba->sli4_hba.nvmels_cq && 3674 phba->sli4_hba.nvmels_cq->queue_id == queid) { 3675 /* Sanity check */ 3676 rc = lpfc_idiag_que_param_check( 3677 phba->sli4_hba.nvmels_cq, index, count); 3678 if (rc) 3679 goto error_out; 3680 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 3681 goto pass_check; 3682 } 3683 /* FCP complete queue */ 3684 if (phba->sli4_hba.fcp_cq) { 3685 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3686 qidx++) { 3687 qp = phba->sli4_hba.fcp_cq[qidx]; 3688 if (qp && qp->queue_id == queid) { 3689 /* Sanity check */ 3690 rc = lpfc_idiag_que_param_check( 3691 qp, index, count); 3692 if (rc) 3693 goto error_out; 3694 idiag.ptr_private = qp; 3695 goto pass_check; 3696 } 3697 } 3698 } 3699 /* NVME complete queue */ 3700 if (phba->sli4_hba.nvme_cq) { 3701 qidx = 0; 3702 do { 3703 if (phba->sli4_hba.nvme_cq[qidx] && 3704 phba->sli4_hba.nvme_cq[qidx]->queue_id == 3705 queid) { 3706 /* Sanity check */ 3707 rc = lpfc_idiag_que_param_check( 3708 phba->sli4_hba.nvme_cq[qidx], 3709 index, count); 3710 if (rc) 3711 goto error_out; 3712 idiag.ptr_private = 3713 phba->sli4_hba.nvme_cq[qidx]; 3714 goto pass_check; 3715 } 3716 } while (++qidx < phba->cfg_nvme_io_channel); 3717 } 3718 goto error_out; 3719 break; 3720 case LPFC_IDIAG_MQ: 3721 /* MBX work queue */ 3722 if (phba->sli4_hba.mbx_wq && 3723 phba->sli4_hba.mbx_wq->queue_id == queid) { 3724 /* Sanity check */ 3725 rc = lpfc_idiag_que_param_check( 3726 phba->sli4_hba.mbx_wq, index, count); 3727 if (rc) 3728 goto error_out; 3729 idiag.ptr_private = phba->sli4_hba.mbx_wq; 3730 goto pass_check; 3731 } 3732 goto error_out; 3733 break; 3734 case LPFC_IDIAG_WQ: 3735 /* ELS work queue */ 3736 if (phba->sli4_hba.els_wq && 3737 phba->sli4_hba.els_wq->queue_id == queid) { 3738 /* Sanity check */ 3739 rc = lpfc_idiag_que_param_check( 3740 phba->sli4_hba.els_wq, index, count); 3741 if (rc) 3742 goto error_out; 3743 idiag.ptr_private = phba->sli4_hba.els_wq; 3744 goto pass_check; 3745 } 3746 /* NVME LS work queue */ 3747 if (phba->sli4_hba.nvmels_wq && 3748 phba->sli4_hba.nvmels_wq->queue_id == queid) { 3749 /* Sanity check */ 3750 rc = lpfc_idiag_que_param_check( 3751 phba->sli4_hba.nvmels_wq, index, count); 3752 if (rc) 3753 goto error_out; 3754 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 3755 goto pass_check; 3756 } 3757 /* FCP work queue */ 3758 if (phba->sli4_hba.fcp_wq) { 3759 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3760 qidx++) { 3761 qp = phba->sli4_hba.fcp_wq[qidx]; 3762 if (qp && qp->queue_id == queid) { 3763 /* Sanity check */ 3764 rc = lpfc_idiag_que_param_check( 3765 qp, index, count); 3766 if (rc) 3767 goto error_out; 3768 idiag.ptr_private = qp; 3769 goto pass_check; 3770 } 3771 } 3772 } 3773 /* NVME work queue */ 3774 if (phba->sli4_hba.nvme_wq) { 3775 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3776 qidx++) { 3777 qp = phba->sli4_hba.nvme_wq[qidx]; 3778 if (qp && qp->queue_id == queid) { 3779 /* Sanity check */ 3780 rc = lpfc_idiag_que_param_check( 3781 qp, index, count); 3782 if (rc) 3783 goto error_out; 3784 idiag.ptr_private = qp; 3785 goto pass_check; 3786 } 3787 } 3788 } 3789 3790 /* NVME work queues */ 3791 if (phba->sli4_hba.nvme_wq) { 3792 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3793 qidx++) { 3794 if (!phba->sli4_hba.nvme_wq[qidx]) 3795 continue; 3796 if (phba->sli4_hba.nvme_wq[qidx]->queue_id == 3797 queid) { 3798 /* Sanity check */ 3799 rc = lpfc_idiag_que_param_check( 3800 phba->sli4_hba.nvme_wq[qidx], 3801 index, count); 3802 if (rc) 3803 goto error_out; 3804 idiag.ptr_private = 3805 phba->sli4_hba.nvme_wq[qidx]; 3806 goto pass_check; 3807 } 3808 } 3809 } 3810 goto error_out; 3811 break; 3812 case LPFC_IDIAG_RQ: 3813 /* HDR queue */ 3814 if (phba->sli4_hba.hdr_rq && 3815 phba->sli4_hba.hdr_rq->queue_id == queid) { 3816 /* Sanity check */ 3817 rc = lpfc_idiag_que_param_check( 3818 phba->sli4_hba.hdr_rq, index, count); 3819 if (rc) 3820 goto error_out; 3821 idiag.ptr_private = phba->sli4_hba.hdr_rq; 3822 goto pass_check; 3823 } 3824 /* DAT queue */ 3825 if (phba->sli4_hba.dat_rq && 3826 phba->sli4_hba.dat_rq->queue_id == queid) { 3827 /* Sanity check */ 3828 rc = lpfc_idiag_que_param_check( 3829 phba->sli4_hba.dat_rq, index, count); 3830 if (rc) 3831 goto error_out; 3832 idiag.ptr_private = phba->sli4_hba.dat_rq; 3833 goto pass_check; 3834 } 3835 goto error_out; 3836 break; 3837 default: 3838 goto error_out; 3839 break; 3840 } 3841 3842 pass_check: 3843 3844 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3845 if (count == LPFC_QUE_ACC_BROWSE) 3846 idiag.offset.last_rd = index; 3847 } 3848 3849 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3850 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3851 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3852 /* Additional sanity checks on write operation */ 3853 pque = (struct lpfc_queue *)idiag.ptr_private; 3854 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 3855 goto error_out; 3856 pentry = pque->qe[index].address; 3857 pentry += offset; 3858 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 3859 *pentry = value; 3860 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 3861 *pentry |= value; 3862 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 3863 *pentry &= ~value; 3864 } 3865 return nbytes; 3866 3867 error_out: 3868 /* Clean out command structure on command error out */ 3869 memset(&idiag, 0, sizeof(idiag)); 3870 return -EINVAL; 3871 } 3872 3873 /** 3874 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 3875 * @phba: The pointer to hba structure. 3876 * @pbuffer: The pointer to the buffer to copy the data to. 3877 * @len: The lenght of bytes to copied. 3878 * @drbregid: The id to doorbell registers. 3879 * 3880 * Description: 3881 * This routine reads a doorbell register and copies its content to the 3882 * user buffer pointed to by @pbuffer. 3883 * 3884 * Returns: 3885 * This function returns the amount of data that was copied into @pbuffer. 3886 **/ 3887 static int 3888 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 3889 int len, uint32_t drbregid) 3890 { 3891 3892 if (!pbuffer) 3893 return 0; 3894 3895 switch (drbregid) { 3896 case LPFC_DRB_EQCQ: 3897 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3898 "EQCQ-DRB-REG: 0x%08x\n", 3899 readl(phba->sli4_hba.EQCQDBregaddr)); 3900 break; 3901 case LPFC_DRB_MQ: 3902 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3903 "MQ-DRB-REG: 0x%08x\n", 3904 readl(phba->sli4_hba.MQDBregaddr)); 3905 break; 3906 case LPFC_DRB_WQ: 3907 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3908 "WQ-DRB-REG: 0x%08x\n", 3909 readl(phba->sli4_hba.WQDBregaddr)); 3910 break; 3911 case LPFC_DRB_RQ: 3912 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3913 "RQ-DRB-REG: 0x%08x\n", 3914 readl(phba->sli4_hba.RQDBregaddr)); 3915 break; 3916 default: 3917 break; 3918 } 3919 3920 return len; 3921 } 3922 3923 /** 3924 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 3925 * @file: The file pointer to read from. 3926 * @buf: The buffer to copy the data to. 3927 * @nbytes: The number of bytes to read. 3928 * @ppos: The position in the file to start reading from. 3929 * 3930 * Description: 3931 * This routine reads data from the @phba device doorbell register according 3932 * to the idiag command, and copies to user @buf. Depending on the doorbell 3933 * register read command setup, it does either a single doorbell register 3934 * read or dump all doorbell registers. 3935 * 3936 * Returns: 3937 * This function returns the amount of data that was read (this could be less 3938 * than @nbytes if the end of the file was reached) or a negative error value. 3939 **/ 3940 static ssize_t 3941 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 3942 loff_t *ppos) 3943 { 3944 struct lpfc_debug *debug = file->private_data; 3945 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3946 uint32_t drb_reg_id, i; 3947 char *pbuffer; 3948 int len = 0; 3949 3950 /* This is a user read operation */ 3951 debug->op = LPFC_IDIAG_OP_RD; 3952 3953 if (!debug->buffer) 3954 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 3955 if (!debug->buffer) 3956 return 0; 3957 pbuffer = debug->buffer; 3958 3959 if (*ppos) 3960 return 0; 3961 3962 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 3963 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 3964 else 3965 return 0; 3966 3967 if (drb_reg_id == LPFC_DRB_ACC_ALL) 3968 for (i = 1; i <= LPFC_DRB_MAX; i++) 3969 len = lpfc_idiag_drbacc_read_reg(phba, 3970 pbuffer, len, i); 3971 else 3972 len = lpfc_idiag_drbacc_read_reg(phba, 3973 pbuffer, len, drb_reg_id); 3974 3975 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3976 } 3977 3978 /** 3979 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 3980 * @file: The file pointer to read from. 3981 * @buf: The buffer to copy the user data from. 3982 * @nbytes: The number of bytes to get. 3983 * @ppos: The position in the file to start reading from. 3984 * 3985 * This routine get the debugfs idiag command struct from user space and then 3986 * perform the syntax check for port doorbell register read (dump) or write 3987 * (set) command accordingly. In the case of port queue read command, it sets 3988 * up the command in the idiag command struct for the following debugfs read 3989 * operation. In the case of port doorbell register write operation, it 3990 * executes the write operation into the port doorbell register accordingly. 3991 * 3992 * It returns the @nbytges passing in from debugfs user space when successful. 3993 * In case of error conditions, it returns proper error code back to the user 3994 * space. 3995 **/ 3996 static ssize_t 3997 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 3998 size_t nbytes, loff_t *ppos) 3999 { 4000 struct lpfc_debug *debug = file->private_data; 4001 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4002 uint32_t drb_reg_id, value, reg_val = 0; 4003 void __iomem *drb_reg; 4004 int rc; 4005 4006 /* This is a user write operation */ 4007 debug->op = LPFC_IDIAG_OP_WR; 4008 4009 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4010 if (rc < 0) 4011 return rc; 4012 4013 /* Sanity check on command line arguments */ 4014 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4015 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4016 4017 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4018 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4019 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4020 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4021 goto error_out; 4022 if (drb_reg_id > LPFC_DRB_MAX) 4023 goto error_out; 4024 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4025 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4026 goto error_out; 4027 if ((drb_reg_id > LPFC_DRB_MAX) && 4028 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4029 goto error_out; 4030 } else 4031 goto error_out; 4032 4033 /* Perform the write access operation */ 4034 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4035 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4036 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4037 switch (drb_reg_id) { 4038 case LPFC_DRB_EQCQ: 4039 drb_reg = phba->sli4_hba.EQCQDBregaddr; 4040 break; 4041 case LPFC_DRB_MQ: 4042 drb_reg = phba->sli4_hba.MQDBregaddr; 4043 break; 4044 case LPFC_DRB_WQ: 4045 drb_reg = phba->sli4_hba.WQDBregaddr; 4046 break; 4047 case LPFC_DRB_RQ: 4048 drb_reg = phba->sli4_hba.RQDBregaddr; 4049 break; 4050 default: 4051 goto error_out; 4052 } 4053 4054 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4055 reg_val = value; 4056 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4057 reg_val = readl(drb_reg); 4058 reg_val |= value; 4059 } 4060 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4061 reg_val = readl(drb_reg); 4062 reg_val &= ~value; 4063 } 4064 writel(reg_val, drb_reg); 4065 readl(drb_reg); /* flush */ 4066 } 4067 return nbytes; 4068 4069 error_out: 4070 /* Clean out command structure on command error out */ 4071 memset(&idiag, 0, sizeof(idiag)); 4072 return -EINVAL; 4073 } 4074 4075 /** 4076 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4077 * @phba: The pointer to hba structure. 4078 * @pbuffer: The pointer to the buffer to copy the data to. 4079 * @len: The lenght of bytes to copied. 4080 * @drbregid: The id to doorbell registers. 4081 * 4082 * Description: 4083 * This routine reads a control register and copies its content to the 4084 * user buffer pointed to by @pbuffer. 4085 * 4086 * Returns: 4087 * This function returns the amount of data that was copied into @pbuffer. 4088 **/ 4089 static int 4090 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4091 int len, uint32_t ctlregid) 4092 { 4093 4094 if (!pbuffer) 4095 return 0; 4096 4097 switch (ctlregid) { 4098 case LPFC_CTL_PORT_SEM: 4099 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4100 "Port SemReg: 0x%08x\n", 4101 readl(phba->sli4_hba.conf_regs_memmap_p + 4102 LPFC_CTL_PORT_SEM_OFFSET)); 4103 break; 4104 case LPFC_CTL_PORT_STA: 4105 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4106 "Port StaReg: 0x%08x\n", 4107 readl(phba->sli4_hba.conf_regs_memmap_p + 4108 LPFC_CTL_PORT_STA_OFFSET)); 4109 break; 4110 case LPFC_CTL_PORT_CTL: 4111 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4112 "Port CtlReg: 0x%08x\n", 4113 readl(phba->sli4_hba.conf_regs_memmap_p + 4114 LPFC_CTL_PORT_CTL_OFFSET)); 4115 break; 4116 case LPFC_CTL_PORT_ER1: 4117 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4118 "Port Er1Reg: 0x%08x\n", 4119 readl(phba->sli4_hba.conf_regs_memmap_p + 4120 LPFC_CTL_PORT_ER1_OFFSET)); 4121 break; 4122 case LPFC_CTL_PORT_ER2: 4123 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4124 "Port Er2Reg: 0x%08x\n", 4125 readl(phba->sli4_hba.conf_regs_memmap_p + 4126 LPFC_CTL_PORT_ER2_OFFSET)); 4127 break; 4128 case LPFC_CTL_PDEV_CTL: 4129 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4130 "PDev CtlReg: 0x%08x\n", 4131 readl(phba->sli4_hba.conf_regs_memmap_p + 4132 LPFC_CTL_PDEV_CTL_OFFSET)); 4133 break; 4134 default: 4135 break; 4136 } 4137 return len; 4138 } 4139 4140 /** 4141 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4142 * @file: The file pointer to read from. 4143 * @buf: The buffer to copy the data to. 4144 * @nbytes: The number of bytes to read. 4145 * @ppos: The position in the file to start reading from. 4146 * 4147 * Description: 4148 * This routine reads data from the @phba port and device registers according 4149 * to the idiag command, and copies to user @buf. 4150 * 4151 * Returns: 4152 * This function returns the amount of data that was read (this could be less 4153 * than @nbytes if the end of the file was reached) or a negative error value. 4154 **/ 4155 static ssize_t 4156 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4157 loff_t *ppos) 4158 { 4159 struct lpfc_debug *debug = file->private_data; 4160 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4161 uint32_t ctl_reg_id, i; 4162 char *pbuffer; 4163 int len = 0; 4164 4165 /* This is a user read operation */ 4166 debug->op = LPFC_IDIAG_OP_RD; 4167 4168 if (!debug->buffer) 4169 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4170 if (!debug->buffer) 4171 return 0; 4172 pbuffer = debug->buffer; 4173 4174 if (*ppos) 4175 return 0; 4176 4177 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4178 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4179 else 4180 return 0; 4181 4182 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4183 for (i = 1; i <= LPFC_CTL_MAX; i++) 4184 len = lpfc_idiag_ctlacc_read_reg(phba, 4185 pbuffer, len, i); 4186 else 4187 len = lpfc_idiag_ctlacc_read_reg(phba, 4188 pbuffer, len, ctl_reg_id); 4189 4190 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4191 } 4192 4193 /** 4194 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4195 * @file: The file pointer to read from. 4196 * @buf: The buffer to copy the user data from. 4197 * @nbytes: The number of bytes to get. 4198 * @ppos: The position in the file to start reading from. 4199 * 4200 * This routine get the debugfs idiag command struct from user space and then 4201 * perform the syntax check for port and device control register read (dump) 4202 * or write (set) command accordingly. 4203 * 4204 * It returns the @nbytges passing in from debugfs user space when successful. 4205 * In case of error conditions, it returns proper error code back to the user 4206 * space. 4207 **/ 4208 static ssize_t 4209 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4210 size_t nbytes, loff_t *ppos) 4211 { 4212 struct lpfc_debug *debug = file->private_data; 4213 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4214 uint32_t ctl_reg_id, value, reg_val = 0; 4215 void __iomem *ctl_reg; 4216 int rc; 4217 4218 /* This is a user write operation */ 4219 debug->op = LPFC_IDIAG_OP_WR; 4220 4221 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4222 if (rc < 0) 4223 return rc; 4224 4225 /* Sanity check on command line arguments */ 4226 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4227 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4228 4229 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4230 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4231 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4232 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4233 goto error_out; 4234 if (ctl_reg_id > LPFC_CTL_MAX) 4235 goto error_out; 4236 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4237 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4238 goto error_out; 4239 if ((ctl_reg_id > LPFC_CTL_MAX) && 4240 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4241 goto error_out; 4242 } else 4243 goto error_out; 4244 4245 /* Perform the write access operation */ 4246 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4247 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4248 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4249 switch (ctl_reg_id) { 4250 case LPFC_CTL_PORT_SEM: 4251 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4252 LPFC_CTL_PORT_SEM_OFFSET; 4253 break; 4254 case LPFC_CTL_PORT_STA: 4255 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4256 LPFC_CTL_PORT_STA_OFFSET; 4257 break; 4258 case LPFC_CTL_PORT_CTL: 4259 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4260 LPFC_CTL_PORT_CTL_OFFSET; 4261 break; 4262 case LPFC_CTL_PORT_ER1: 4263 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4264 LPFC_CTL_PORT_ER1_OFFSET; 4265 break; 4266 case LPFC_CTL_PORT_ER2: 4267 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4268 LPFC_CTL_PORT_ER2_OFFSET; 4269 break; 4270 case LPFC_CTL_PDEV_CTL: 4271 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4272 LPFC_CTL_PDEV_CTL_OFFSET; 4273 break; 4274 default: 4275 goto error_out; 4276 } 4277 4278 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4279 reg_val = value; 4280 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4281 reg_val = readl(ctl_reg); 4282 reg_val |= value; 4283 } 4284 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4285 reg_val = readl(ctl_reg); 4286 reg_val &= ~value; 4287 } 4288 writel(reg_val, ctl_reg); 4289 readl(ctl_reg); /* flush */ 4290 } 4291 return nbytes; 4292 4293 error_out: 4294 /* Clean out command structure on command error out */ 4295 memset(&idiag, 0, sizeof(idiag)); 4296 return -EINVAL; 4297 } 4298 4299 /** 4300 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4301 * @phba: Pointer to HBA context object. 4302 * @pbuffer: Pointer to data buffer. 4303 * 4304 * Description: 4305 * This routine gets the driver mailbox access debugfs setup information. 4306 * 4307 * Returns: 4308 * This function returns the amount of data that was read (this could be less 4309 * than @nbytes if the end of the file was reached) or a negative error value. 4310 **/ 4311 static int 4312 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 4313 { 4314 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4315 int len = 0; 4316 4317 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4318 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4319 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4320 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4321 4322 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4323 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 4324 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4325 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 4326 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4327 "mbx_word_cnt: %04d\n", mbx_word_cnt); 4328 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4329 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 4330 4331 return len; 4332 } 4333 4334 /** 4335 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 4336 * @file: The file pointer to read from. 4337 * @buf: The buffer to copy the data to. 4338 * @nbytes: The number of bytes to read. 4339 * @ppos: The position in the file to start reading from. 4340 * 4341 * Description: 4342 * This routine reads data from the @phba driver mailbox access debugfs setup 4343 * information. 4344 * 4345 * Returns: 4346 * This function returns the amount of data that was read (this could be less 4347 * than @nbytes if the end of the file was reached) or a negative error value. 4348 **/ 4349 static ssize_t 4350 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 4351 loff_t *ppos) 4352 { 4353 struct lpfc_debug *debug = file->private_data; 4354 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4355 char *pbuffer; 4356 int len = 0; 4357 4358 /* This is a user read operation */ 4359 debug->op = LPFC_IDIAG_OP_RD; 4360 4361 if (!debug->buffer) 4362 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 4363 if (!debug->buffer) 4364 return 0; 4365 pbuffer = debug->buffer; 4366 4367 if (*ppos) 4368 return 0; 4369 4370 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 4371 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 4372 return 0; 4373 4374 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 4375 4376 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4377 } 4378 4379 /** 4380 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 4381 * @file: The file pointer to read from. 4382 * @buf: The buffer to copy the user data from. 4383 * @nbytes: The number of bytes to get. 4384 * @ppos: The position in the file to start reading from. 4385 * 4386 * This routine get the debugfs idiag command struct from user space and then 4387 * perform the syntax check for driver mailbox command (dump) and sets up the 4388 * necessary states in the idiag command struct accordingly. 4389 * 4390 * It returns the @nbytges passing in from debugfs user space when successful. 4391 * In case of error conditions, it returns proper error code back to the user 4392 * space. 4393 **/ 4394 static ssize_t 4395 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 4396 size_t nbytes, loff_t *ppos) 4397 { 4398 struct lpfc_debug *debug = file->private_data; 4399 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4400 int rc; 4401 4402 /* This is a user write operation */ 4403 debug->op = LPFC_IDIAG_OP_WR; 4404 4405 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4406 if (rc < 0) 4407 return rc; 4408 4409 /* Sanity check on command line arguments */ 4410 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4411 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4412 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4413 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4414 4415 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 4416 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 4417 goto error_out; 4418 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 4419 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4420 goto error_out; 4421 if (mbx_word_cnt > sizeof(MAILBOX_t)) 4422 goto error_out; 4423 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 4424 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 4425 goto error_out; 4426 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 4427 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4428 goto error_out; 4429 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 4430 goto error_out; 4431 if (mbx_mbox_cmd != 0x9b) 4432 goto error_out; 4433 } else 4434 goto error_out; 4435 4436 if (mbx_word_cnt == 0) 4437 goto error_out; 4438 if (rc != LPFC_MBX_DMP_ARG) 4439 goto error_out; 4440 if (mbx_mbox_cmd & ~0xff) 4441 goto error_out; 4442 4443 /* condition for stop mailbox dump */ 4444 if (mbx_dump_cnt == 0) 4445 goto reset_out; 4446 4447 return nbytes; 4448 4449 reset_out: 4450 /* Clean out command structure on command error out */ 4451 memset(&idiag, 0, sizeof(idiag)); 4452 return nbytes; 4453 4454 error_out: 4455 /* Clean out command structure on command error out */ 4456 memset(&idiag, 0, sizeof(idiag)); 4457 return -EINVAL; 4458 } 4459 4460 /** 4461 * lpfc_idiag_extacc_avail_get - get the available extents information 4462 * @phba: pointer to lpfc hba data structure. 4463 * @pbuffer: pointer to internal buffer. 4464 * @len: length into the internal buffer data has been copied. 4465 * 4466 * Description: 4467 * This routine is to get the available extent information. 4468 * 4469 * Returns: 4470 * overall lenth of the data read into the internal buffer. 4471 **/ 4472 static int 4473 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 4474 { 4475 uint16_t ext_cnt, ext_size; 4476 4477 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4478 "\nAvailable Extents Information:\n"); 4479 4480 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4481 "\tPort Available VPI extents: "); 4482 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 4483 &ext_cnt, &ext_size); 4484 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4485 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4486 4487 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4488 "\tPort Available VFI extents: "); 4489 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 4490 &ext_cnt, &ext_size); 4491 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4492 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4493 4494 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4495 "\tPort Available RPI extents: "); 4496 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 4497 &ext_cnt, &ext_size); 4498 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4499 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4500 4501 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4502 "\tPort Available XRI extents: "); 4503 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 4504 &ext_cnt, &ext_size); 4505 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4506 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4507 4508 return len; 4509 } 4510 4511 /** 4512 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 4513 * @phba: pointer to lpfc hba data structure. 4514 * @pbuffer: pointer to internal buffer. 4515 * @len: length into the internal buffer data has been copied. 4516 * 4517 * Description: 4518 * This routine is to get the allocated extent information. 4519 * 4520 * Returns: 4521 * overall lenth of the data read into the internal buffer. 4522 **/ 4523 static int 4524 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 4525 { 4526 uint16_t ext_cnt, ext_size; 4527 int rc; 4528 4529 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4530 "\nAllocated Extents Information:\n"); 4531 4532 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4533 "\tHost Allocated VPI extents: "); 4534 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 4535 &ext_cnt, &ext_size); 4536 if (!rc) 4537 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4538 "Port %d Extent %3d, Size %3d\n", 4539 phba->brd_no, ext_cnt, ext_size); 4540 else 4541 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4542 "N/A\n"); 4543 4544 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4545 "\tHost Allocated VFI extents: "); 4546 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 4547 &ext_cnt, &ext_size); 4548 if (!rc) 4549 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4550 "Port %d Extent %3d, Size %3d\n", 4551 phba->brd_no, ext_cnt, ext_size); 4552 else 4553 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4554 "N/A\n"); 4555 4556 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4557 "\tHost Allocated RPI extents: "); 4558 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 4559 &ext_cnt, &ext_size); 4560 if (!rc) 4561 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4562 "Port %d Extent %3d, Size %3d\n", 4563 phba->brd_no, ext_cnt, ext_size); 4564 else 4565 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4566 "N/A\n"); 4567 4568 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4569 "\tHost Allocated XRI extents: "); 4570 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 4571 &ext_cnt, &ext_size); 4572 if (!rc) 4573 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4574 "Port %d Extent %3d, Size %3d\n", 4575 phba->brd_no, ext_cnt, ext_size); 4576 else 4577 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4578 "N/A\n"); 4579 4580 return len; 4581 } 4582 4583 /** 4584 * lpfc_idiag_extacc_drivr_get - get driver extent information 4585 * @phba: pointer to lpfc hba data structure. 4586 * @pbuffer: pointer to internal buffer. 4587 * @len: length into the internal buffer data has been copied. 4588 * 4589 * Description: 4590 * This routine is to get the driver extent information. 4591 * 4592 * Returns: 4593 * overall lenth of the data read into the internal buffer. 4594 **/ 4595 static int 4596 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 4597 { 4598 struct lpfc_rsrc_blks *rsrc_blks; 4599 int index; 4600 4601 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4602 "\nDriver Extents Information:\n"); 4603 4604 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4605 "\tVPI extents:\n"); 4606 index = 0; 4607 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 4608 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4609 "\t\tBlock %3d: Start %4d, Count %4d\n", 4610 index, rsrc_blks->rsrc_start, 4611 rsrc_blks->rsrc_size); 4612 index++; 4613 } 4614 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4615 "\tVFI extents:\n"); 4616 index = 0; 4617 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 4618 list) { 4619 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4620 "\t\tBlock %3d: Start %4d, Count %4d\n", 4621 index, rsrc_blks->rsrc_start, 4622 rsrc_blks->rsrc_size); 4623 index++; 4624 } 4625 4626 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4627 "\tRPI extents:\n"); 4628 index = 0; 4629 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 4630 list) { 4631 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4632 "\t\tBlock %3d: Start %4d, Count %4d\n", 4633 index, rsrc_blks->rsrc_start, 4634 rsrc_blks->rsrc_size); 4635 index++; 4636 } 4637 4638 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4639 "\tXRI extents:\n"); 4640 index = 0; 4641 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 4642 list) { 4643 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4644 "\t\tBlock %3d: Start %4d, Count %4d\n", 4645 index, rsrc_blks->rsrc_start, 4646 rsrc_blks->rsrc_size); 4647 index++; 4648 } 4649 4650 return len; 4651 } 4652 4653 /** 4654 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 4655 * @file: The file pointer to read from. 4656 * @buf: The buffer to copy the user data from. 4657 * @nbytes: The number of bytes to get. 4658 * @ppos: The position in the file to start reading from. 4659 * 4660 * This routine get the debugfs idiag command struct from user space and then 4661 * perform the syntax check for extent information access commands and sets 4662 * up the necessary states in the idiag command struct accordingly. 4663 * 4664 * It returns the @nbytges passing in from debugfs user space when successful. 4665 * In case of error conditions, it returns proper error code back to the user 4666 * space. 4667 **/ 4668 static ssize_t 4669 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 4670 size_t nbytes, loff_t *ppos) 4671 { 4672 struct lpfc_debug *debug = file->private_data; 4673 uint32_t ext_map; 4674 int rc; 4675 4676 /* This is a user write operation */ 4677 debug->op = LPFC_IDIAG_OP_WR; 4678 4679 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4680 if (rc < 0) 4681 return rc; 4682 4683 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4684 4685 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4686 goto error_out; 4687 if (rc != LPFC_EXT_ACC_CMD_ARG) 4688 goto error_out; 4689 if (!(ext_map & LPFC_EXT_ACC_ALL)) 4690 goto error_out; 4691 4692 return nbytes; 4693 error_out: 4694 /* Clean out command structure on command error out */ 4695 memset(&idiag, 0, sizeof(idiag)); 4696 return -EINVAL; 4697 } 4698 4699 /** 4700 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 4701 * @file: The file pointer to read from. 4702 * @buf: The buffer to copy the data to. 4703 * @nbytes: The number of bytes to read. 4704 * @ppos: The position in the file to start reading from. 4705 * 4706 * Description: 4707 * This routine reads data from the proper extent information according to 4708 * the idiag command, and copies to user @buf. 4709 * 4710 * Returns: 4711 * This function returns the amount of data that was read (this could be less 4712 * than @nbytes if the end of the file was reached) or a negative error value. 4713 **/ 4714 static ssize_t 4715 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 4716 loff_t *ppos) 4717 { 4718 struct lpfc_debug *debug = file->private_data; 4719 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4720 char *pbuffer; 4721 uint32_t ext_map; 4722 int len = 0; 4723 4724 /* This is a user read operation */ 4725 debug->op = LPFC_IDIAG_OP_RD; 4726 4727 if (!debug->buffer) 4728 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 4729 if (!debug->buffer) 4730 return 0; 4731 pbuffer = debug->buffer; 4732 if (*ppos) 4733 return 0; 4734 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4735 return 0; 4736 4737 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4738 if (ext_map & LPFC_EXT_ACC_AVAIL) 4739 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 4740 if (ext_map & LPFC_EXT_ACC_ALLOC) 4741 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 4742 if (ext_map & LPFC_EXT_ACC_DRIVR) 4743 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 4744 4745 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4746 } 4747 4748 #undef lpfc_debugfs_op_disc_trc 4749 static const struct file_operations lpfc_debugfs_op_disc_trc = { 4750 .owner = THIS_MODULE, 4751 .open = lpfc_debugfs_disc_trc_open, 4752 .llseek = lpfc_debugfs_lseek, 4753 .read = lpfc_debugfs_read, 4754 .release = lpfc_debugfs_release, 4755 }; 4756 4757 #undef lpfc_debugfs_op_nodelist 4758 static const struct file_operations lpfc_debugfs_op_nodelist = { 4759 .owner = THIS_MODULE, 4760 .open = lpfc_debugfs_nodelist_open, 4761 .llseek = lpfc_debugfs_lseek, 4762 .read = lpfc_debugfs_read, 4763 .release = lpfc_debugfs_release, 4764 }; 4765 4766 #undef lpfc_debugfs_op_hbqinfo 4767 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 4768 .owner = THIS_MODULE, 4769 .open = lpfc_debugfs_hbqinfo_open, 4770 .llseek = lpfc_debugfs_lseek, 4771 .read = lpfc_debugfs_read, 4772 .release = lpfc_debugfs_release, 4773 }; 4774 4775 #undef lpfc_debugfs_op_dumpHBASlim 4776 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 4777 .owner = THIS_MODULE, 4778 .open = lpfc_debugfs_dumpHBASlim_open, 4779 .llseek = lpfc_debugfs_lseek, 4780 .read = lpfc_debugfs_read, 4781 .release = lpfc_debugfs_release, 4782 }; 4783 4784 #undef lpfc_debugfs_op_dumpHostSlim 4785 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 4786 .owner = THIS_MODULE, 4787 .open = lpfc_debugfs_dumpHostSlim_open, 4788 .llseek = lpfc_debugfs_lseek, 4789 .read = lpfc_debugfs_read, 4790 .release = lpfc_debugfs_release, 4791 }; 4792 4793 #undef lpfc_debugfs_op_nvmestat 4794 static const struct file_operations lpfc_debugfs_op_nvmestat = { 4795 .owner = THIS_MODULE, 4796 .open = lpfc_debugfs_nvmestat_open, 4797 .llseek = lpfc_debugfs_lseek, 4798 .read = lpfc_debugfs_read, 4799 .write = lpfc_debugfs_nvmestat_write, 4800 .release = lpfc_debugfs_release, 4801 }; 4802 4803 #undef lpfc_debugfs_op_nvmektime 4804 static const struct file_operations lpfc_debugfs_op_nvmektime = { 4805 .owner = THIS_MODULE, 4806 .open = lpfc_debugfs_nvmektime_open, 4807 .llseek = lpfc_debugfs_lseek, 4808 .read = lpfc_debugfs_read, 4809 .write = lpfc_debugfs_nvmektime_write, 4810 .release = lpfc_debugfs_release, 4811 }; 4812 4813 #undef lpfc_debugfs_op_nvmeio_trc 4814 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 4815 .owner = THIS_MODULE, 4816 .open = lpfc_debugfs_nvmeio_trc_open, 4817 .llseek = lpfc_debugfs_lseek, 4818 .read = lpfc_debugfs_read, 4819 .write = lpfc_debugfs_nvmeio_trc_write, 4820 .release = lpfc_debugfs_release, 4821 }; 4822 4823 #undef lpfc_debugfs_op_cpucheck 4824 static const struct file_operations lpfc_debugfs_op_cpucheck = { 4825 .owner = THIS_MODULE, 4826 .open = lpfc_debugfs_cpucheck_open, 4827 .llseek = lpfc_debugfs_lseek, 4828 .read = lpfc_debugfs_read, 4829 .write = lpfc_debugfs_cpucheck_write, 4830 .release = lpfc_debugfs_release, 4831 }; 4832 4833 #undef lpfc_debugfs_op_dumpData 4834 static const struct file_operations lpfc_debugfs_op_dumpData = { 4835 .owner = THIS_MODULE, 4836 .open = lpfc_debugfs_dumpData_open, 4837 .llseek = lpfc_debugfs_lseek, 4838 .read = lpfc_debugfs_read, 4839 .write = lpfc_debugfs_dumpDataDif_write, 4840 .release = lpfc_debugfs_dumpDataDif_release, 4841 }; 4842 4843 #undef lpfc_debugfs_op_dumpDif 4844 static const struct file_operations lpfc_debugfs_op_dumpDif = { 4845 .owner = THIS_MODULE, 4846 .open = lpfc_debugfs_dumpDif_open, 4847 .llseek = lpfc_debugfs_lseek, 4848 .read = lpfc_debugfs_read, 4849 .write = lpfc_debugfs_dumpDataDif_write, 4850 .release = lpfc_debugfs_dumpDataDif_release, 4851 }; 4852 4853 #undef lpfc_debugfs_op_dif_err 4854 static const struct file_operations lpfc_debugfs_op_dif_err = { 4855 .owner = THIS_MODULE, 4856 .open = simple_open, 4857 .llseek = lpfc_debugfs_lseek, 4858 .read = lpfc_debugfs_dif_err_read, 4859 .write = lpfc_debugfs_dif_err_write, 4860 .release = lpfc_debugfs_dif_err_release, 4861 }; 4862 4863 #undef lpfc_debugfs_op_slow_ring_trc 4864 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 4865 .owner = THIS_MODULE, 4866 .open = lpfc_debugfs_slow_ring_trc_open, 4867 .llseek = lpfc_debugfs_lseek, 4868 .read = lpfc_debugfs_read, 4869 .release = lpfc_debugfs_release, 4870 }; 4871 4872 static struct dentry *lpfc_debugfs_root = NULL; 4873 static atomic_t lpfc_debugfs_hba_count; 4874 4875 /* 4876 * File operations for the iDiag debugfs 4877 */ 4878 #undef lpfc_idiag_op_pciCfg 4879 static const struct file_operations lpfc_idiag_op_pciCfg = { 4880 .owner = THIS_MODULE, 4881 .open = lpfc_idiag_open, 4882 .llseek = lpfc_debugfs_lseek, 4883 .read = lpfc_idiag_pcicfg_read, 4884 .write = lpfc_idiag_pcicfg_write, 4885 .release = lpfc_idiag_cmd_release, 4886 }; 4887 4888 #undef lpfc_idiag_op_barAcc 4889 static const struct file_operations lpfc_idiag_op_barAcc = { 4890 .owner = THIS_MODULE, 4891 .open = lpfc_idiag_open, 4892 .llseek = lpfc_debugfs_lseek, 4893 .read = lpfc_idiag_baracc_read, 4894 .write = lpfc_idiag_baracc_write, 4895 .release = lpfc_idiag_cmd_release, 4896 }; 4897 4898 #undef lpfc_idiag_op_queInfo 4899 static const struct file_operations lpfc_idiag_op_queInfo = { 4900 .owner = THIS_MODULE, 4901 .open = lpfc_idiag_open, 4902 .read = lpfc_idiag_queinfo_read, 4903 .release = lpfc_idiag_release, 4904 }; 4905 4906 #undef lpfc_idiag_op_queAcc 4907 static const struct file_operations lpfc_idiag_op_queAcc = { 4908 .owner = THIS_MODULE, 4909 .open = lpfc_idiag_open, 4910 .llseek = lpfc_debugfs_lseek, 4911 .read = lpfc_idiag_queacc_read, 4912 .write = lpfc_idiag_queacc_write, 4913 .release = lpfc_idiag_cmd_release, 4914 }; 4915 4916 #undef lpfc_idiag_op_drbAcc 4917 static const struct file_operations lpfc_idiag_op_drbAcc = { 4918 .owner = THIS_MODULE, 4919 .open = lpfc_idiag_open, 4920 .llseek = lpfc_debugfs_lseek, 4921 .read = lpfc_idiag_drbacc_read, 4922 .write = lpfc_idiag_drbacc_write, 4923 .release = lpfc_idiag_cmd_release, 4924 }; 4925 4926 #undef lpfc_idiag_op_ctlAcc 4927 static const struct file_operations lpfc_idiag_op_ctlAcc = { 4928 .owner = THIS_MODULE, 4929 .open = lpfc_idiag_open, 4930 .llseek = lpfc_debugfs_lseek, 4931 .read = lpfc_idiag_ctlacc_read, 4932 .write = lpfc_idiag_ctlacc_write, 4933 .release = lpfc_idiag_cmd_release, 4934 }; 4935 4936 #undef lpfc_idiag_op_mbxAcc 4937 static const struct file_operations lpfc_idiag_op_mbxAcc = { 4938 .owner = THIS_MODULE, 4939 .open = lpfc_idiag_open, 4940 .llseek = lpfc_debugfs_lseek, 4941 .read = lpfc_idiag_mbxacc_read, 4942 .write = lpfc_idiag_mbxacc_write, 4943 .release = lpfc_idiag_cmd_release, 4944 }; 4945 4946 #undef lpfc_idiag_op_extAcc 4947 static const struct file_operations lpfc_idiag_op_extAcc = { 4948 .owner = THIS_MODULE, 4949 .open = lpfc_idiag_open, 4950 .llseek = lpfc_debugfs_lseek, 4951 .read = lpfc_idiag_extacc_read, 4952 .write = lpfc_idiag_extacc_write, 4953 .release = lpfc_idiag_cmd_release, 4954 }; 4955 4956 #endif 4957 4958 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 4959 * @phba: Pointer to HBA context object. 4960 * @dmabuf: Pointer to a DMA buffer descriptor. 4961 * 4962 * Description: 4963 * This routine dump a bsg pass-through non-embedded mailbox command with 4964 * external buffer. 4965 **/ 4966 void 4967 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 4968 enum mbox_type mbox_tp, enum dma_type dma_tp, 4969 enum sta_type sta_tp, 4970 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 4971 { 4972 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4973 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 4974 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 4975 int len = 0; 4976 uint32_t do_dump = 0; 4977 uint32_t *pword; 4978 uint32_t i; 4979 4980 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 4981 return; 4982 4983 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4984 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4985 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4986 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4987 4988 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 4989 (*mbx_dump_cnt == 0) || 4990 (*mbx_word_cnt == 0)) 4991 return; 4992 4993 if (*mbx_mbox_cmd != 0x9B) 4994 return; 4995 4996 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 4997 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 4998 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 4999 pr_err("\nRead mbox command (x%x), " 5000 "nemb:0x%x, extbuf_cnt:%d:\n", 5001 sta_tp, nemb_tp, ext_buf); 5002 } 5003 } 5004 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5005 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5006 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5007 pr_err("\nRead mbox buffer (x%x), " 5008 "nemb:0x%x, extbuf_seq:%d:\n", 5009 sta_tp, nemb_tp, ext_buf); 5010 } 5011 } 5012 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5013 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5014 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5015 pr_err("\nWrite mbox command (x%x), " 5016 "nemb:0x%x, extbuf_cnt:%d:\n", 5017 sta_tp, nemb_tp, ext_buf); 5018 } 5019 } 5020 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5021 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5022 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5023 pr_err("\nWrite mbox buffer (x%x), " 5024 "nemb:0x%x, extbuf_seq:%d:\n", 5025 sta_tp, nemb_tp, ext_buf); 5026 } 5027 } 5028 5029 /* dump buffer content */ 5030 if (do_dump) { 5031 pword = (uint32_t *)dmabuf->virt; 5032 for (i = 0; i < *mbx_word_cnt; i++) { 5033 if (!(i % 8)) { 5034 if (i != 0) 5035 pr_err("%s\n", line_buf); 5036 len = 0; 5037 len += snprintf(line_buf+len, 5038 LPFC_MBX_ACC_LBUF_SZ-len, 5039 "%03d: ", i); 5040 } 5041 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5042 "%08x ", (uint32_t)*pword); 5043 pword++; 5044 } 5045 if ((i - 1) % 8) 5046 pr_err("%s\n", line_buf); 5047 (*mbx_dump_cnt)--; 5048 } 5049 5050 /* Clean out command structure on reaching dump count */ 5051 if (*mbx_dump_cnt == 0) 5052 memset(&idiag, 0, sizeof(idiag)); 5053 return; 5054 #endif 5055 } 5056 5057 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5058 * @phba: Pointer to HBA context object. 5059 * @dmabuf: Pointer to a DMA buffer descriptor. 5060 * 5061 * Description: 5062 * This routine dump a pass-through non-embedded mailbox command from issue 5063 * mailbox command. 5064 **/ 5065 void 5066 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5067 { 5068 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5069 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5070 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5071 int len = 0; 5072 uint32_t *pword; 5073 uint8_t *pbyte; 5074 uint32_t i, j; 5075 5076 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5077 return; 5078 5079 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5080 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5081 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5082 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5083 5084 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5085 (*mbx_dump_cnt == 0) || 5086 (*mbx_word_cnt == 0)) 5087 return; 5088 5089 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5090 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5091 return; 5092 5093 /* dump buffer content */ 5094 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5095 pr_err("Mailbox command:0x%x dump by word:\n", 5096 pmbox->mbxCommand); 5097 pword = (uint32_t *)pmbox; 5098 for (i = 0; i < *mbx_word_cnt; i++) { 5099 if (!(i % 8)) { 5100 if (i != 0) 5101 pr_err("%s\n", line_buf); 5102 len = 0; 5103 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5104 len += snprintf(line_buf+len, 5105 LPFC_MBX_ACC_LBUF_SZ-len, 5106 "%03d: ", i); 5107 } 5108 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5109 "%08x ", 5110 ((uint32_t)*pword) & 0xffffffff); 5111 pword++; 5112 } 5113 if ((i - 1) % 8) 5114 pr_err("%s\n", line_buf); 5115 pr_err("\n"); 5116 } 5117 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5118 pr_err("Mailbox command:0x%x dump by byte:\n", 5119 pmbox->mbxCommand); 5120 pbyte = (uint8_t *)pmbox; 5121 for (i = 0; i < *mbx_word_cnt; i++) { 5122 if (!(i % 8)) { 5123 if (i != 0) 5124 pr_err("%s\n", line_buf); 5125 len = 0; 5126 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5127 len += snprintf(line_buf+len, 5128 LPFC_MBX_ACC_LBUF_SZ-len, 5129 "%03d: ", i); 5130 } 5131 for (j = 0; j < 4; j++) { 5132 len += snprintf(line_buf+len, 5133 LPFC_MBX_ACC_LBUF_SZ-len, 5134 "%02x", 5135 ((uint8_t)*pbyte) & 0xff); 5136 pbyte++; 5137 } 5138 len += snprintf(line_buf+len, 5139 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5140 } 5141 if ((i - 1) % 8) 5142 pr_err("%s\n", line_buf); 5143 pr_err("\n"); 5144 } 5145 (*mbx_dump_cnt)--; 5146 5147 /* Clean out command structure on reaching dump count */ 5148 if (*mbx_dump_cnt == 0) 5149 memset(&idiag, 0, sizeof(idiag)); 5150 return; 5151 #endif 5152 } 5153 5154 /** 5155 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5156 * @vport: The vport pointer to initialize. 5157 * 5158 * Description: 5159 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5160 * If not already created, this routine will create the lpfc directory, and 5161 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5162 * also create each file used to access lpfc specific debugfs information. 5163 **/ 5164 inline void 5165 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5166 { 5167 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5168 struct lpfc_hba *phba = vport->phba; 5169 char name[64]; 5170 uint32_t num, i; 5171 bool pport_setup = false; 5172 5173 if (!lpfc_debugfs_enable) 5174 return; 5175 5176 /* Setup lpfc root directory */ 5177 if (!lpfc_debugfs_root) { 5178 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5179 atomic_set(&lpfc_debugfs_hba_count, 0); 5180 if (!lpfc_debugfs_root) { 5181 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5182 "0408 Cannot create debugfs root\n"); 5183 goto debug_failed; 5184 } 5185 } 5186 if (!lpfc_debugfs_start_time) 5187 lpfc_debugfs_start_time = jiffies; 5188 5189 /* Setup funcX directory for specific HBA PCI function */ 5190 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5191 if (!phba->hba_debugfs_root) { 5192 pport_setup = true; 5193 phba->hba_debugfs_root = 5194 debugfs_create_dir(name, lpfc_debugfs_root); 5195 if (!phba->hba_debugfs_root) { 5196 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5197 "0412 Cannot create debugfs hba\n"); 5198 goto debug_failed; 5199 } 5200 atomic_inc(&lpfc_debugfs_hba_count); 5201 atomic_set(&phba->debugfs_vport_count, 0); 5202 5203 /* Setup hbqinfo */ 5204 snprintf(name, sizeof(name), "hbqinfo"); 5205 phba->debug_hbqinfo = 5206 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5207 phba->hba_debugfs_root, 5208 phba, &lpfc_debugfs_op_hbqinfo); 5209 if (!phba->debug_hbqinfo) { 5210 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5211 "0411 Cannot create debugfs hbqinfo\n"); 5212 goto debug_failed; 5213 } 5214 5215 /* Setup dumpHBASlim */ 5216 if (phba->sli_rev < LPFC_SLI_REV4) { 5217 snprintf(name, sizeof(name), "dumpHBASlim"); 5218 phba->debug_dumpHBASlim = 5219 debugfs_create_file(name, 5220 S_IFREG|S_IRUGO|S_IWUSR, 5221 phba->hba_debugfs_root, 5222 phba, &lpfc_debugfs_op_dumpHBASlim); 5223 if (!phba->debug_dumpHBASlim) { 5224 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5225 "0413 Cannot create debugfs " 5226 "dumpHBASlim\n"); 5227 goto debug_failed; 5228 } 5229 } else 5230 phba->debug_dumpHBASlim = NULL; 5231 5232 /* Setup dumpHostSlim */ 5233 if (phba->sli_rev < LPFC_SLI_REV4) { 5234 snprintf(name, sizeof(name), "dumpHostSlim"); 5235 phba->debug_dumpHostSlim = 5236 debugfs_create_file(name, 5237 S_IFREG|S_IRUGO|S_IWUSR, 5238 phba->hba_debugfs_root, 5239 phba, &lpfc_debugfs_op_dumpHostSlim); 5240 if (!phba->debug_dumpHostSlim) { 5241 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5242 "0414 Cannot create debugfs " 5243 "dumpHostSlim\n"); 5244 goto debug_failed; 5245 } 5246 } else 5247 phba->debug_dumpHostSlim = NULL; 5248 5249 /* Setup dumpData */ 5250 snprintf(name, sizeof(name), "dumpData"); 5251 phba->debug_dumpData = 5252 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5253 phba->hba_debugfs_root, 5254 phba, &lpfc_debugfs_op_dumpData); 5255 if (!phba->debug_dumpData) { 5256 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5257 "0800 Cannot create debugfs dumpData\n"); 5258 goto debug_failed; 5259 } 5260 5261 /* Setup dumpDif */ 5262 snprintf(name, sizeof(name), "dumpDif"); 5263 phba->debug_dumpDif = 5264 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5265 phba->hba_debugfs_root, 5266 phba, &lpfc_debugfs_op_dumpDif); 5267 if (!phba->debug_dumpDif) { 5268 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5269 "0801 Cannot create debugfs dumpDif\n"); 5270 goto debug_failed; 5271 } 5272 5273 /* Setup DIF Error Injections */ 5274 snprintf(name, sizeof(name), "InjErrLBA"); 5275 phba->debug_InjErrLBA = 5276 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5277 phba->hba_debugfs_root, 5278 phba, &lpfc_debugfs_op_dif_err); 5279 if (!phba->debug_InjErrLBA) { 5280 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5281 "0807 Cannot create debugfs InjErrLBA\n"); 5282 goto debug_failed; 5283 } 5284 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5285 5286 snprintf(name, sizeof(name), "InjErrNPortID"); 5287 phba->debug_InjErrNPortID = 5288 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5289 phba->hba_debugfs_root, 5290 phba, &lpfc_debugfs_op_dif_err); 5291 if (!phba->debug_InjErrNPortID) { 5292 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5293 "0809 Cannot create debugfs InjErrNPortID\n"); 5294 goto debug_failed; 5295 } 5296 5297 snprintf(name, sizeof(name), "InjErrWWPN"); 5298 phba->debug_InjErrWWPN = 5299 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5300 phba->hba_debugfs_root, 5301 phba, &lpfc_debugfs_op_dif_err); 5302 if (!phba->debug_InjErrWWPN) { 5303 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5304 "0810 Cannot create debugfs InjErrWWPN\n"); 5305 goto debug_failed; 5306 } 5307 5308 snprintf(name, sizeof(name), "writeGuardInjErr"); 5309 phba->debug_writeGuard = 5310 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5311 phba->hba_debugfs_root, 5312 phba, &lpfc_debugfs_op_dif_err); 5313 if (!phba->debug_writeGuard) { 5314 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5315 "0802 Cannot create debugfs writeGuard\n"); 5316 goto debug_failed; 5317 } 5318 5319 snprintf(name, sizeof(name), "writeAppInjErr"); 5320 phba->debug_writeApp = 5321 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5322 phba->hba_debugfs_root, 5323 phba, &lpfc_debugfs_op_dif_err); 5324 if (!phba->debug_writeApp) { 5325 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5326 "0803 Cannot create debugfs writeApp\n"); 5327 goto debug_failed; 5328 } 5329 5330 snprintf(name, sizeof(name), "writeRefInjErr"); 5331 phba->debug_writeRef = 5332 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5333 phba->hba_debugfs_root, 5334 phba, &lpfc_debugfs_op_dif_err); 5335 if (!phba->debug_writeRef) { 5336 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5337 "0804 Cannot create debugfs writeRef\n"); 5338 goto debug_failed; 5339 } 5340 5341 snprintf(name, sizeof(name), "readGuardInjErr"); 5342 phba->debug_readGuard = 5343 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5344 phba->hba_debugfs_root, 5345 phba, &lpfc_debugfs_op_dif_err); 5346 if (!phba->debug_readGuard) { 5347 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5348 "0808 Cannot create debugfs readGuard\n"); 5349 goto debug_failed; 5350 } 5351 5352 snprintf(name, sizeof(name), "readAppInjErr"); 5353 phba->debug_readApp = 5354 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5355 phba->hba_debugfs_root, 5356 phba, &lpfc_debugfs_op_dif_err); 5357 if (!phba->debug_readApp) { 5358 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5359 "0805 Cannot create debugfs readApp\n"); 5360 goto debug_failed; 5361 } 5362 5363 snprintf(name, sizeof(name), "readRefInjErr"); 5364 phba->debug_readRef = 5365 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5366 phba->hba_debugfs_root, 5367 phba, &lpfc_debugfs_op_dif_err); 5368 if (!phba->debug_readRef) { 5369 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5370 "0806 Cannot create debugfs readApp\n"); 5371 goto debug_failed; 5372 } 5373 5374 /* Setup slow ring trace */ 5375 if (lpfc_debugfs_max_slow_ring_trc) { 5376 num = lpfc_debugfs_max_slow_ring_trc - 1; 5377 if (num & lpfc_debugfs_max_slow_ring_trc) { 5378 /* Change to be a power of 2 */ 5379 num = lpfc_debugfs_max_slow_ring_trc; 5380 i = 0; 5381 while (num > 1) { 5382 num = num >> 1; 5383 i++; 5384 } 5385 lpfc_debugfs_max_slow_ring_trc = (1 << i); 5386 pr_err("lpfc_debugfs_max_disc_trc changed to " 5387 "%d\n", lpfc_debugfs_max_disc_trc); 5388 } 5389 } 5390 5391 snprintf(name, sizeof(name), "slow_ring_trace"); 5392 phba->debug_slow_ring_trc = 5393 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5394 phba->hba_debugfs_root, 5395 phba, &lpfc_debugfs_op_slow_ring_trc); 5396 if (!phba->debug_slow_ring_trc) { 5397 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5398 "0415 Cannot create debugfs " 5399 "slow_ring_trace\n"); 5400 goto debug_failed; 5401 } 5402 if (!phba->slow_ring_trc) { 5403 phba->slow_ring_trc = kmalloc( 5404 (sizeof(struct lpfc_debugfs_trc) * 5405 lpfc_debugfs_max_slow_ring_trc), 5406 GFP_KERNEL); 5407 if (!phba->slow_ring_trc) { 5408 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5409 "0416 Cannot create debugfs " 5410 "slow_ring buffer\n"); 5411 goto debug_failed; 5412 } 5413 atomic_set(&phba->slow_ring_trc_cnt, 0); 5414 memset(phba->slow_ring_trc, 0, 5415 (sizeof(struct lpfc_debugfs_trc) * 5416 lpfc_debugfs_max_slow_ring_trc)); 5417 } 5418 5419 snprintf(name, sizeof(name), "nvmeio_trc"); 5420 phba->debug_nvmeio_trc = 5421 debugfs_create_file(name, 0644, 5422 phba->hba_debugfs_root, 5423 phba, &lpfc_debugfs_op_nvmeio_trc); 5424 if (!phba->debug_nvmeio_trc) { 5425 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5426 "0574 No create debugfs nvmeio_trc\n"); 5427 goto debug_failed; 5428 } 5429 5430 atomic_set(&phba->nvmeio_trc_cnt, 0); 5431 if (lpfc_debugfs_max_nvmeio_trc) { 5432 num = lpfc_debugfs_max_nvmeio_trc - 1; 5433 if (num & lpfc_debugfs_max_disc_trc) { 5434 /* Change to be a power of 2 */ 5435 num = lpfc_debugfs_max_nvmeio_trc; 5436 i = 0; 5437 while (num > 1) { 5438 num = num >> 1; 5439 i++; 5440 } 5441 lpfc_debugfs_max_nvmeio_trc = (1 << i); 5442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5443 "0575 lpfc_debugfs_max_nvmeio_trc " 5444 "changed to %d\n", 5445 lpfc_debugfs_max_nvmeio_trc); 5446 } 5447 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 5448 5449 /* Allocate trace buffer and initialize */ 5450 phba->nvmeio_trc = kmalloc( 5451 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 5452 phba->nvmeio_trc_size), GFP_KERNEL); 5453 5454 if (!phba->nvmeio_trc) { 5455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5456 "0576 Cannot create debugfs " 5457 "nvmeio_trc buffer\n"); 5458 goto nvmeio_off; 5459 } 5460 memset(phba->nvmeio_trc, 0, 5461 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 5462 phba->nvmeio_trc_size)); 5463 phba->nvmeio_trc_on = 1; 5464 phba->nvmeio_trc_output_idx = 0; 5465 phba->nvmeio_trc = NULL; 5466 } else { 5467 nvmeio_off: 5468 phba->nvmeio_trc_size = 0; 5469 phba->nvmeio_trc_on = 0; 5470 phba->nvmeio_trc_output_idx = 0; 5471 phba->nvmeio_trc = NULL; 5472 } 5473 } 5474 5475 snprintf(name, sizeof(name), "vport%d", vport->vpi); 5476 if (!vport->vport_debugfs_root) { 5477 vport->vport_debugfs_root = 5478 debugfs_create_dir(name, phba->hba_debugfs_root); 5479 if (!vport->vport_debugfs_root) { 5480 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5481 "0417 Can't create debugfs\n"); 5482 goto debug_failed; 5483 } 5484 atomic_inc(&phba->debugfs_vport_count); 5485 } 5486 5487 if (lpfc_debugfs_max_disc_trc) { 5488 num = lpfc_debugfs_max_disc_trc - 1; 5489 if (num & lpfc_debugfs_max_disc_trc) { 5490 /* Change to be a power of 2 */ 5491 num = lpfc_debugfs_max_disc_trc; 5492 i = 0; 5493 while (num > 1) { 5494 num = num >> 1; 5495 i++; 5496 } 5497 lpfc_debugfs_max_disc_trc = (1 << i); 5498 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 5499 lpfc_debugfs_max_disc_trc); 5500 } 5501 } 5502 5503 vport->disc_trc = kzalloc( 5504 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 5505 GFP_KERNEL); 5506 5507 if (!vport->disc_trc) { 5508 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5509 "0418 Cannot create debugfs disc trace " 5510 "buffer\n"); 5511 goto debug_failed; 5512 } 5513 atomic_set(&vport->disc_trc_cnt, 0); 5514 5515 snprintf(name, sizeof(name), "discovery_trace"); 5516 vport->debug_disc_trc = 5517 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5518 vport->vport_debugfs_root, 5519 vport, &lpfc_debugfs_op_disc_trc); 5520 if (!vport->debug_disc_trc) { 5521 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5522 "0419 Cannot create debugfs " 5523 "discovery_trace\n"); 5524 goto debug_failed; 5525 } 5526 snprintf(name, sizeof(name), "nodelist"); 5527 vport->debug_nodelist = 5528 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5529 vport->vport_debugfs_root, 5530 vport, &lpfc_debugfs_op_nodelist); 5531 if (!vport->debug_nodelist) { 5532 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5533 "2985 Can't create debugfs nodelist\n"); 5534 goto debug_failed; 5535 } 5536 5537 snprintf(name, sizeof(name), "nvmestat"); 5538 vport->debug_nvmestat = 5539 debugfs_create_file(name, 0644, 5540 vport->vport_debugfs_root, 5541 vport, &lpfc_debugfs_op_nvmestat); 5542 if (!vport->debug_nvmestat) { 5543 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5544 "0811 Cannot create debugfs nvmestat\n"); 5545 goto debug_failed; 5546 } 5547 5548 snprintf(name, sizeof(name), "nvmektime"); 5549 vport->debug_nvmektime = 5550 debugfs_create_file(name, 0644, 5551 vport->vport_debugfs_root, 5552 vport, &lpfc_debugfs_op_nvmektime); 5553 if (!vport->debug_nvmektime) { 5554 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5555 "0815 Cannot create debugfs nvmektime\n"); 5556 goto debug_failed; 5557 } 5558 5559 snprintf(name, sizeof(name), "cpucheck"); 5560 vport->debug_cpucheck = 5561 debugfs_create_file(name, 0644, 5562 vport->vport_debugfs_root, 5563 vport, &lpfc_debugfs_op_cpucheck); 5564 if (!vport->debug_cpucheck) { 5565 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5566 "0819 Cannot create debugfs cpucheck\n"); 5567 goto debug_failed; 5568 } 5569 5570 /* 5571 * The following section is for additional directories/files for the 5572 * physical port. 5573 */ 5574 5575 if (!pport_setup) 5576 goto debug_failed; 5577 5578 /* 5579 * iDiag debugfs root entry points for SLI4 device only 5580 */ 5581 if (phba->sli_rev < LPFC_SLI_REV4) 5582 goto debug_failed; 5583 5584 snprintf(name, sizeof(name), "iDiag"); 5585 if (!phba->idiag_root) { 5586 phba->idiag_root = 5587 debugfs_create_dir(name, phba->hba_debugfs_root); 5588 if (!phba->idiag_root) { 5589 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5590 "2922 Can't create idiag debugfs\n"); 5591 goto debug_failed; 5592 } 5593 /* Initialize iDiag data structure */ 5594 memset(&idiag, 0, sizeof(idiag)); 5595 } 5596 5597 /* iDiag read PCI config space */ 5598 snprintf(name, sizeof(name), "pciCfg"); 5599 if (!phba->idiag_pci_cfg) { 5600 phba->idiag_pci_cfg = 5601 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5602 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 5603 if (!phba->idiag_pci_cfg) { 5604 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5605 "2923 Can't create idiag debugfs\n"); 5606 goto debug_failed; 5607 } 5608 idiag.offset.last_rd = 0; 5609 } 5610 5611 /* iDiag PCI BAR access */ 5612 snprintf(name, sizeof(name), "barAcc"); 5613 if (!phba->idiag_bar_acc) { 5614 phba->idiag_bar_acc = 5615 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5616 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 5617 if (!phba->idiag_bar_acc) { 5618 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5619 "3056 Can't create idiag debugfs\n"); 5620 goto debug_failed; 5621 } 5622 idiag.offset.last_rd = 0; 5623 } 5624 5625 /* iDiag get PCI function queue information */ 5626 snprintf(name, sizeof(name), "queInfo"); 5627 if (!phba->idiag_que_info) { 5628 phba->idiag_que_info = 5629 debugfs_create_file(name, S_IFREG|S_IRUGO, 5630 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 5631 if (!phba->idiag_que_info) { 5632 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5633 "2924 Can't create idiag debugfs\n"); 5634 goto debug_failed; 5635 } 5636 } 5637 5638 /* iDiag access PCI function queue */ 5639 snprintf(name, sizeof(name), "queAcc"); 5640 if (!phba->idiag_que_acc) { 5641 phba->idiag_que_acc = 5642 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5643 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 5644 if (!phba->idiag_que_acc) { 5645 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5646 "2926 Can't create idiag debugfs\n"); 5647 goto debug_failed; 5648 } 5649 } 5650 5651 /* iDiag access PCI function doorbell registers */ 5652 snprintf(name, sizeof(name), "drbAcc"); 5653 if (!phba->idiag_drb_acc) { 5654 phba->idiag_drb_acc = 5655 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5656 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 5657 if (!phba->idiag_drb_acc) { 5658 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5659 "2927 Can't create idiag debugfs\n"); 5660 goto debug_failed; 5661 } 5662 } 5663 5664 /* iDiag access PCI function control registers */ 5665 snprintf(name, sizeof(name), "ctlAcc"); 5666 if (!phba->idiag_ctl_acc) { 5667 phba->idiag_ctl_acc = 5668 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5669 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 5670 if (!phba->idiag_ctl_acc) { 5671 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5672 "2981 Can't create idiag debugfs\n"); 5673 goto debug_failed; 5674 } 5675 } 5676 5677 /* iDiag access mbox commands */ 5678 snprintf(name, sizeof(name), "mbxAcc"); 5679 if (!phba->idiag_mbx_acc) { 5680 phba->idiag_mbx_acc = 5681 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5682 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 5683 if (!phba->idiag_mbx_acc) { 5684 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5685 "2980 Can't create idiag debugfs\n"); 5686 goto debug_failed; 5687 } 5688 } 5689 5690 /* iDiag extents access commands */ 5691 if (phba->sli4_hba.extents_in_use) { 5692 snprintf(name, sizeof(name), "extAcc"); 5693 if (!phba->idiag_ext_acc) { 5694 phba->idiag_ext_acc = 5695 debugfs_create_file(name, 5696 S_IFREG|S_IRUGO|S_IWUSR, 5697 phba->idiag_root, phba, 5698 &lpfc_idiag_op_extAcc); 5699 if (!phba->idiag_ext_acc) { 5700 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5701 "2986 Cant create " 5702 "idiag debugfs\n"); 5703 goto debug_failed; 5704 } 5705 } 5706 } 5707 5708 debug_failed: 5709 return; 5710 #endif 5711 } 5712 5713 /** 5714 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 5715 * @vport: The vport pointer to remove from debugfs. 5716 * 5717 * Description: 5718 * When Debugfs is configured this routine removes debugfs file system elements 5719 * that are specific to this vport. It also checks to see if there are any 5720 * users left for the debugfs directories associated with the HBA and driver. If 5721 * this is the last user of the HBA directory or driver directory then it will 5722 * remove those from the debugfs infrastructure as well. 5723 **/ 5724 inline void 5725 lpfc_debugfs_terminate(struct lpfc_vport *vport) 5726 { 5727 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5728 struct lpfc_hba *phba = vport->phba; 5729 5730 kfree(vport->disc_trc); 5731 vport->disc_trc = NULL; 5732 5733 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 5734 vport->debug_disc_trc = NULL; 5735 5736 debugfs_remove(vport->debug_nodelist); /* nodelist */ 5737 vport->debug_nodelist = NULL; 5738 5739 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 5740 vport->debug_nvmestat = NULL; 5741 5742 debugfs_remove(vport->debug_nvmektime); /* nvmektime */ 5743 vport->debug_nvmektime = NULL; 5744 5745 debugfs_remove(vport->debug_cpucheck); /* cpucheck */ 5746 vport->debug_cpucheck = NULL; 5747 5748 if (vport->vport_debugfs_root) { 5749 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 5750 vport->vport_debugfs_root = NULL; 5751 atomic_dec(&phba->debugfs_vport_count); 5752 } 5753 5754 if (atomic_read(&phba->debugfs_vport_count) == 0) { 5755 5756 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 5757 phba->debug_hbqinfo = NULL; 5758 5759 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 5760 phba->debug_dumpHBASlim = NULL; 5761 5762 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 5763 phba->debug_dumpHostSlim = NULL; 5764 5765 debugfs_remove(phba->debug_dumpData); /* dumpData */ 5766 phba->debug_dumpData = NULL; 5767 5768 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 5769 phba->debug_dumpDif = NULL; 5770 5771 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 5772 phba->debug_InjErrLBA = NULL; 5773 5774 debugfs_remove(phba->debug_InjErrNPortID); 5775 phba->debug_InjErrNPortID = NULL; 5776 5777 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 5778 phba->debug_InjErrWWPN = NULL; 5779 5780 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 5781 phba->debug_writeGuard = NULL; 5782 5783 debugfs_remove(phba->debug_writeApp); /* writeApp */ 5784 phba->debug_writeApp = NULL; 5785 5786 debugfs_remove(phba->debug_writeRef); /* writeRef */ 5787 phba->debug_writeRef = NULL; 5788 5789 debugfs_remove(phba->debug_readGuard); /* readGuard */ 5790 phba->debug_readGuard = NULL; 5791 5792 debugfs_remove(phba->debug_readApp); /* readApp */ 5793 phba->debug_readApp = NULL; 5794 5795 debugfs_remove(phba->debug_readRef); /* readRef */ 5796 phba->debug_readRef = NULL; 5797 5798 kfree(phba->slow_ring_trc); 5799 phba->slow_ring_trc = NULL; 5800 5801 /* slow_ring_trace */ 5802 debugfs_remove(phba->debug_slow_ring_trc); 5803 phba->debug_slow_ring_trc = NULL; 5804 5805 debugfs_remove(phba->debug_nvmeio_trc); 5806 phba->debug_nvmeio_trc = NULL; 5807 5808 kfree(phba->nvmeio_trc); 5809 phba->nvmeio_trc = NULL; 5810 5811 /* 5812 * iDiag release 5813 */ 5814 if (phba->sli_rev == LPFC_SLI_REV4) { 5815 /* iDiag extAcc */ 5816 debugfs_remove(phba->idiag_ext_acc); 5817 phba->idiag_ext_acc = NULL; 5818 5819 /* iDiag mbxAcc */ 5820 debugfs_remove(phba->idiag_mbx_acc); 5821 phba->idiag_mbx_acc = NULL; 5822 5823 /* iDiag ctlAcc */ 5824 debugfs_remove(phba->idiag_ctl_acc); 5825 phba->idiag_ctl_acc = NULL; 5826 5827 /* iDiag drbAcc */ 5828 debugfs_remove(phba->idiag_drb_acc); 5829 phba->idiag_drb_acc = NULL; 5830 5831 /* iDiag queAcc */ 5832 debugfs_remove(phba->idiag_que_acc); 5833 phba->idiag_que_acc = NULL; 5834 5835 /* iDiag queInfo */ 5836 debugfs_remove(phba->idiag_que_info); 5837 phba->idiag_que_info = NULL; 5838 5839 /* iDiag barAcc */ 5840 debugfs_remove(phba->idiag_bar_acc); 5841 phba->idiag_bar_acc = NULL; 5842 5843 /* iDiag pciCfg */ 5844 debugfs_remove(phba->idiag_pci_cfg); 5845 phba->idiag_pci_cfg = NULL; 5846 5847 /* Finally remove the iDiag debugfs root */ 5848 debugfs_remove(phba->idiag_root); 5849 phba->idiag_root = NULL; 5850 } 5851 5852 if (phba->hba_debugfs_root) { 5853 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 5854 phba->hba_debugfs_root = NULL; 5855 atomic_dec(&lpfc_debugfs_hba_count); 5856 } 5857 5858 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 5859 lpfc_debugfs_root = NULL; 5860 } 5861 #endif 5862 return; 5863 } 5864 5865 /* 5866 * Driver debug utility routines outside of debugfs. The debug utility 5867 * routines implemented here is intended to be used in the instrumented 5868 * debug driver for debugging host or port issues. 5869 */ 5870 5871 /** 5872 * lpfc_debug_dump_all_queues - dump all the queues with a hba 5873 * @phba: Pointer to HBA context object. 5874 * 5875 * This function dumps entries of all the queues asociated with the @phba. 5876 **/ 5877 void 5878 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 5879 { 5880 int idx; 5881 5882 /* 5883 * Dump Work Queues (WQs) 5884 */ 5885 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 5886 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 5887 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 5888 5889 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5890 lpfc_debug_dump_wq(phba, DUMP_FCP, idx); 5891 5892 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5893 lpfc_debug_dump_wq(phba, DUMP_NVME, idx); 5894 5895 lpfc_debug_dump_hdr_rq(phba); 5896 lpfc_debug_dump_dat_rq(phba); 5897 /* 5898 * Dump Complete Queues (CQs) 5899 */ 5900 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 5901 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 5902 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 5903 5904 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5905 lpfc_debug_dump_cq(phba, DUMP_FCP, idx); 5906 5907 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5908 lpfc_debug_dump_cq(phba, DUMP_NVME, idx); 5909 5910 /* 5911 * Dump Event Queues (EQs) 5912 */ 5913 for (idx = 0; idx < phba->io_channel_irqs; idx++) 5914 lpfc_debug_dump_hba_eq(phba, idx); 5915 } 5916