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