1 /* 2 * Management Module Support for MPT (Message Passing Technology) based 3 * controllers 4 * 5 * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.c 6 * Copyright (C) 2012-2014 LSI Corporation 7 * Copyright (C) 2013-2014 Avago Technologies 8 * (mailto: MPT-FusionLinux.pdl@avagotech.com) 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License 12 * as published by the Free Software Foundation; either version 2 13 * of the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * NO WARRANTY 21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 25 * solely responsible for determining the appropriateness of using and 26 * distributing the Program and assumes all risks associated with its 27 * exercise of rights under this Agreement, including but not limited to 28 * the risks and costs of program errors, damage to or loss of data, 29 * programs or equipment, and unavailability or interruption of operations. 30 31 * DISCLAIMER OF LIABILITY 32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 39 40 * You should have received a copy of the GNU General Public License 41 * along with this program; if not, write to the Free Software 42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 43 * USA. 44 */ 45 46 #include <linux/kernel.h> 47 #include <linux/module.h> 48 #include <linux/errno.h> 49 #include <linux/init.h> 50 #include <linux/slab.h> 51 #include <linux/types.h> 52 #include <linux/pci.h> 53 #include <linux/delay.h> 54 #include <linux/compat.h> 55 #include <linux/poll.h> 56 57 #include <linux/io.h> 58 #include <linux/uaccess.h> 59 60 #include "mpt3sas_base.h" 61 #include "mpt3sas_ctl.h" 62 63 64 static struct fasync_struct *async_queue; 65 static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait); 66 67 68 /** 69 * enum block_state - blocking state 70 * @NON_BLOCKING: non blocking 71 * @BLOCKING: blocking 72 * 73 * These states are for ioctls that need to wait for a response 74 * from firmware, so they probably require sleep. 75 */ 76 enum block_state { 77 NON_BLOCKING, 78 BLOCKING, 79 }; 80 81 /** 82 * _ctl_display_some_debug - debug routine 83 * @ioc: per adapter object 84 * @smid: system request message index 85 * @calling_function_name: string pass from calling function 86 * @mpi_reply: reply message frame 87 * Context: none. 88 * 89 * Function for displaying debug info helpful when debugging issues 90 * in this module. 91 */ 92 static void 93 _ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid, 94 char *calling_function_name, MPI2DefaultReply_t *mpi_reply) 95 { 96 Mpi2ConfigRequest_t *mpi_request; 97 char *desc = NULL; 98 99 if (!(ioc->logging_level & MPT_DEBUG_IOCTL)) 100 return; 101 102 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 103 switch (mpi_request->Function) { 104 case MPI2_FUNCTION_SCSI_IO_REQUEST: 105 { 106 Mpi2SCSIIORequest_t *scsi_request = 107 (Mpi2SCSIIORequest_t *)mpi_request; 108 109 snprintf(ioc->tmp_string, MPT_STRING_LENGTH, 110 "scsi_io, cmd(0x%02x), cdb_len(%d)", 111 scsi_request->CDB.CDB32[0], 112 le16_to_cpu(scsi_request->IoFlags) & 0xF); 113 desc = ioc->tmp_string; 114 break; 115 } 116 case MPI2_FUNCTION_SCSI_TASK_MGMT: 117 desc = "task_mgmt"; 118 break; 119 case MPI2_FUNCTION_IOC_INIT: 120 desc = "ioc_init"; 121 break; 122 case MPI2_FUNCTION_IOC_FACTS: 123 desc = "ioc_facts"; 124 break; 125 case MPI2_FUNCTION_CONFIG: 126 { 127 Mpi2ConfigRequest_t *config_request = 128 (Mpi2ConfigRequest_t *)mpi_request; 129 130 snprintf(ioc->tmp_string, MPT_STRING_LENGTH, 131 "config, type(0x%02x), ext_type(0x%02x), number(%d)", 132 (config_request->Header.PageType & 133 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType, 134 config_request->Header.PageNumber); 135 desc = ioc->tmp_string; 136 break; 137 } 138 case MPI2_FUNCTION_PORT_FACTS: 139 desc = "port_facts"; 140 break; 141 case MPI2_FUNCTION_PORT_ENABLE: 142 desc = "port_enable"; 143 break; 144 case MPI2_FUNCTION_EVENT_NOTIFICATION: 145 desc = "event_notification"; 146 break; 147 case MPI2_FUNCTION_FW_DOWNLOAD: 148 desc = "fw_download"; 149 break; 150 case MPI2_FUNCTION_FW_UPLOAD: 151 desc = "fw_upload"; 152 break; 153 case MPI2_FUNCTION_RAID_ACTION: 154 desc = "raid_action"; 155 break; 156 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: 157 { 158 Mpi2SCSIIORequest_t *scsi_request = 159 (Mpi2SCSIIORequest_t *)mpi_request; 160 161 snprintf(ioc->tmp_string, MPT_STRING_LENGTH, 162 "raid_pass, cmd(0x%02x), cdb_len(%d)", 163 scsi_request->CDB.CDB32[0], 164 le16_to_cpu(scsi_request->IoFlags) & 0xF); 165 desc = ioc->tmp_string; 166 break; 167 } 168 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: 169 desc = "sas_iounit_cntl"; 170 break; 171 case MPI2_FUNCTION_SATA_PASSTHROUGH: 172 desc = "sata_pass"; 173 break; 174 case MPI2_FUNCTION_DIAG_BUFFER_POST: 175 desc = "diag_buffer_post"; 176 break; 177 case MPI2_FUNCTION_DIAG_RELEASE: 178 desc = "diag_release"; 179 break; 180 case MPI2_FUNCTION_SMP_PASSTHROUGH: 181 desc = "smp_passthrough"; 182 break; 183 } 184 185 if (!desc) 186 return; 187 188 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n", 189 ioc->name, calling_function_name, desc, smid); 190 191 if (!mpi_reply) 192 return; 193 194 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo) 195 pr_info(MPT3SAS_FMT 196 "\tiocstatus(0x%04x), loginfo(0x%08x)\n", 197 ioc->name, le16_to_cpu(mpi_reply->IOCStatus), 198 le32_to_cpu(mpi_reply->IOCLogInfo)); 199 200 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 201 mpi_request->Function == 202 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { 203 Mpi2SCSIIOReply_t *scsi_reply = 204 (Mpi2SCSIIOReply_t *)mpi_reply; 205 struct _sas_device *sas_device = NULL; 206 struct _pcie_device *pcie_device = NULL; 207 208 sas_device = mpt3sas_get_sdev_by_handle(ioc, 209 le16_to_cpu(scsi_reply->DevHandle)); 210 if (sas_device) { 211 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n", 212 ioc->name, (unsigned long long) 213 sas_device->sas_address, sas_device->phy); 214 pr_warn(MPT3SAS_FMT 215 "\tenclosure_logical_id(0x%016llx), slot(%d)\n", 216 ioc->name, (unsigned long long) 217 sas_device->enclosure_logical_id, sas_device->slot); 218 sas_device_put(sas_device); 219 } 220 if (!sas_device) { 221 pcie_device = mpt3sas_get_pdev_by_handle(ioc, 222 le16_to_cpu(scsi_reply->DevHandle)); 223 if (pcie_device) { 224 pr_warn(MPT3SAS_FMT 225 "\tWWID(0x%016llx), port(%d)\n", ioc->name, 226 (unsigned long long)pcie_device->wwid, 227 pcie_device->port_num); 228 if (pcie_device->enclosure_handle != 0) 229 pr_warn(MPT3SAS_FMT 230 "\tenclosure_logical_id(0x%016llx), slot(%d)\n", 231 ioc->name, (unsigned long long) 232 pcie_device->enclosure_logical_id, 233 pcie_device->slot); 234 pcie_device_put(pcie_device); 235 } 236 } 237 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus) 238 pr_info(MPT3SAS_FMT 239 "\tscsi_state(0x%02x), scsi_status" 240 "(0x%02x)\n", ioc->name, 241 scsi_reply->SCSIState, 242 scsi_reply->SCSIStatus); 243 } 244 } 245 246 /** 247 * mpt3sas_ctl_done - ctl module completion routine 248 * @ioc: per adapter object 249 * @smid: system request message index 250 * @msix_index: MSIX table index supplied by the OS 251 * @reply: reply message frame(lower 32bit addr) 252 * Context: none. 253 * 254 * The callback handler when using ioc->ctl_cb_idx. 255 * 256 * Return 1 meaning mf should be freed from _base_interrupt 257 * 0 means the mf is freed from this function. 258 */ 259 u8 260 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 261 u32 reply) 262 { 263 MPI2DefaultReply_t *mpi_reply; 264 Mpi2SCSIIOReply_t *scsiio_reply; 265 Mpi26NVMeEncapsulatedErrorReply_t *nvme_error_reply; 266 const void *sense_data; 267 u32 sz; 268 269 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED) 270 return 1; 271 if (ioc->ctl_cmds.smid != smid) 272 return 1; 273 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE; 274 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 275 if (mpi_reply) { 276 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); 277 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID; 278 /* get sense data */ 279 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 280 mpi_reply->Function == 281 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { 282 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply; 283 if (scsiio_reply->SCSIState & 284 MPI2_SCSI_STATE_AUTOSENSE_VALID) { 285 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, 286 le32_to_cpu(scsiio_reply->SenseCount)); 287 sense_data = mpt3sas_base_get_sense_buffer(ioc, 288 smid); 289 memcpy(ioc->ctl_cmds.sense, sense_data, sz); 290 } 291 } 292 /* 293 * Get Error Response data for NVMe device. The ctl_cmds.sense 294 * buffer is used to store the Error Response data. 295 */ 296 if (mpi_reply->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) { 297 nvme_error_reply = 298 (Mpi26NVMeEncapsulatedErrorReply_t *)mpi_reply; 299 sz = min_t(u32, NVME_ERROR_RESPONSE_SIZE, 300 le32_to_cpu(nvme_error_reply->ErrorResponseCount)); 301 sense_data = mpt3sas_base_get_sense_buffer(ioc, smid); 302 memcpy(ioc->ctl_cmds.sense, sense_data, sz); 303 } 304 } 305 306 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply); 307 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING; 308 complete(&ioc->ctl_cmds.done); 309 return 1; 310 } 311 312 /** 313 * _ctl_check_event_type - determines when an event needs logging 314 * @ioc: per adapter object 315 * @event: firmware event 316 * 317 * The bitmask in ioc->event_type[] indicates which events should be 318 * be saved in the driver event_log. This bitmask is set by application. 319 * 320 * Returns 1 when event should be captured, or zero means no match. 321 */ 322 static int 323 _ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event) 324 { 325 u16 i; 326 u32 desired_event; 327 328 if (event >= 128 || !event || !ioc->event_log) 329 return 0; 330 331 desired_event = (1 << (event % 32)); 332 if (!desired_event) 333 desired_event = 1; 334 i = event / 32; 335 return desired_event & ioc->event_type[i]; 336 } 337 338 /** 339 * mpt3sas_ctl_add_to_event_log - add event 340 * @ioc: per adapter object 341 * @mpi_reply: reply message frame 342 * 343 * Return nothing. 344 */ 345 void 346 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc, 347 Mpi2EventNotificationReply_t *mpi_reply) 348 { 349 struct MPT3_IOCTL_EVENTS *event_log; 350 u16 event; 351 int i; 352 u32 sz, event_data_sz; 353 u8 send_aen = 0; 354 355 if (!ioc->event_log) 356 return; 357 358 event = le16_to_cpu(mpi_reply->Event); 359 360 if (_ctl_check_event_type(ioc, event)) { 361 362 /* insert entry into circular event_log */ 363 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE; 364 event_log = ioc->event_log; 365 event_log[i].event = event; 366 event_log[i].context = ioc->event_context++; 367 368 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4; 369 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE); 370 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE); 371 memcpy(event_log[i].data, mpi_reply->EventData, sz); 372 send_aen = 1; 373 } 374 375 /* This aen_event_read_flag flag is set until the 376 * application has read the event log. 377 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify. 378 */ 379 if (event == MPI2_EVENT_LOG_ENTRY_ADDED || 380 (send_aen && !ioc->aen_event_read_flag)) { 381 ioc->aen_event_read_flag = 1; 382 wake_up_interruptible(&ctl_poll_wait); 383 if (async_queue) 384 kill_fasync(&async_queue, SIGIO, POLL_IN); 385 } 386 } 387 388 /** 389 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time) 390 * @ioc: per adapter object 391 * @msix_index: MSIX table index supplied by the OS 392 * @reply: reply message frame(lower 32bit addr) 393 * Context: interrupt. 394 * 395 * This function merely adds a new work task into ioc->firmware_event_thread. 396 * The tasks are worked from _firmware_event_work in user context. 397 * 398 * Return 1 meaning mf should be freed from _base_interrupt 399 * 0 means the mf is freed from this function. 400 */ 401 u8 402 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, 403 u32 reply) 404 { 405 Mpi2EventNotificationReply_t *mpi_reply; 406 407 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 408 if (mpi_reply) 409 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply); 410 return 1; 411 } 412 413 /** 414 * _ctl_verify_adapter - validates ioc_number passed from application 415 * @ioc: per adapter object 416 * @iocpp: The ioc pointer is returned in this. 417 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device & 418 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device. 419 * 420 * Return (-1) means error, else ioc_number. 421 */ 422 static int 423 _ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp, 424 int mpi_version) 425 { 426 struct MPT3SAS_ADAPTER *ioc; 427 int version = 0; 428 /* global ioc lock to protect controller on list operations */ 429 spin_lock(&gioc_lock); 430 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) { 431 if (ioc->id != ioc_number) 432 continue; 433 /* Check whether this ioctl command is from right 434 * ioctl device or not, if not continue the search. 435 */ 436 version = ioc->hba_mpi_version_belonged; 437 /* MPI25_VERSION and MPI26_VERSION uses same ioctl 438 * device. 439 */ 440 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) { 441 if ((version == MPI25_VERSION) || 442 (version == MPI26_VERSION)) 443 goto out; 444 else 445 continue; 446 } else { 447 if (version != mpi_version) 448 continue; 449 } 450 out: 451 spin_unlock(&gioc_lock); 452 *iocpp = ioc; 453 return ioc_number; 454 } 455 spin_unlock(&gioc_lock); 456 *iocpp = NULL; 457 return -1; 458 } 459 460 /** 461 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl) 462 * @ioc: per adapter object 463 * @reset_phase: phase 464 * 465 * The handler for doing any required cleanup or initialization. 466 * 467 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET, 468 * MPT3_IOC_DONE_RESET 469 */ 470 void 471 mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase) 472 { 473 int i; 474 u8 issue_reset; 475 476 switch (reset_phase) { 477 case MPT3_IOC_PRE_RESET: 478 dtmprintk(ioc, pr_info(MPT3SAS_FMT 479 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__)); 480 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { 481 if (!(ioc->diag_buffer_status[i] & 482 MPT3_DIAG_BUFFER_IS_REGISTERED)) 483 continue; 484 if ((ioc->diag_buffer_status[i] & 485 MPT3_DIAG_BUFFER_IS_RELEASED)) 486 continue; 487 mpt3sas_send_diag_release(ioc, i, &issue_reset); 488 } 489 break; 490 case MPT3_IOC_AFTER_RESET: 491 dtmprintk(ioc, pr_info(MPT3SAS_FMT 492 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__)); 493 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) { 494 ioc->ctl_cmds.status |= MPT3_CMD_RESET; 495 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid); 496 complete(&ioc->ctl_cmds.done); 497 } 498 break; 499 case MPT3_IOC_DONE_RESET: 500 dtmprintk(ioc, pr_info(MPT3SAS_FMT 501 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__)); 502 503 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { 504 if (!(ioc->diag_buffer_status[i] & 505 MPT3_DIAG_BUFFER_IS_REGISTERED)) 506 continue; 507 if ((ioc->diag_buffer_status[i] & 508 MPT3_DIAG_BUFFER_IS_RELEASED)) 509 continue; 510 ioc->diag_buffer_status[i] |= 511 MPT3_DIAG_BUFFER_IS_DIAG_RESET; 512 } 513 break; 514 } 515 } 516 517 /** 518 * _ctl_fasync - 519 * @fd - 520 * @filep - 521 * @mode - 522 * 523 * Called when application request fasyn callback handler. 524 */ 525 static int 526 _ctl_fasync(int fd, struct file *filep, int mode) 527 { 528 return fasync_helper(fd, filep, mode, &async_queue); 529 } 530 531 /** 532 * _ctl_poll - 533 * @file - 534 * @wait - 535 * 536 */ 537 static __poll_t 538 _ctl_poll(struct file *filep, poll_table *wait) 539 { 540 struct MPT3SAS_ADAPTER *ioc; 541 542 poll_wait(filep, &ctl_poll_wait, wait); 543 544 /* global ioc lock to protect controller on list operations */ 545 spin_lock(&gioc_lock); 546 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) { 547 if (ioc->aen_event_read_flag) { 548 spin_unlock(&gioc_lock); 549 return EPOLLIN | EPOLLRDNORM; 550 } 551 } 552 spin_unlock(&gioc_lock); 553 return 0; 554 } 555 556 /** 557 * _ctl_set_task_mid - assign an active smid to tm request 558 * @ioc: per adapter object 559 * @karg - (struct mpt3_ioctl_command) 560 * @tm_request - pointer to mf from user space 561 * 562 * Returns 0 when an smid if found, else fail. 563 * during failure, the reply frame is filled. 564 */ 565 static int 566 _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg, 567 Mpi2SCSITaskManagementRequest_t *tm_request) 568 { 569 u8 found = 0; 570 u16 smid; 571 u16 handle; 572 struct scsi_cmnd *scmd; 573 struct MPT3SAS_DEVICE *priv_data; 574 Mpi2SCSITaskManagementReply_t *tm_reply; 575 u32 sz; 576 u32 lun; 577 char *desc = NULL; 578 579 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) 580 desc = "abort_task"; 581 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) 582 desc = "query_task"; 583 else 584 return 0; 585 586 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN); 587 588 handle = le16_to_cpu(tm_request->DevHandle); 589 for (smid = ioc->scsiio_depth; smid && !found; smid--) { 590 struct scsiio_tracker *st; 591 592 scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid); 593 if (!scmd) 594 continue; 595 if (lun != scmd->device->lun) 596 continue; 597 priv_data = scmd->device->hostdata; 598 if (priv_data->sas_target == NULL) 599 continue; 600 if (priv_data->sas_target->handle != handle) 601 continue; 602 st = scsi_cmd_priv(scmd); 603 tm_request->TaskMID = cpu_to_le16(st->smid); 604 found = 1; 605 } 606 607 if (!found) { 608 dctlprintk(ioc, pr_info(MPT3SAS_FMT 609 "%s: handle(0x%04x), lun(%d), no active mid!!\n", 610 ioc->name, 611 desc, le16_to_cpu(tm_request->DevHandle), lun)); 612 tm_reply = ioc->ctl_cmds.reply; 613 tm_reply->DevHandle = tm_request->DevHandle; 614 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; 615 tm_reply->TaskType = tm_request->TaskType; 616 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4; 617 tm_reply->VP_ID = tm_request->VP_ID; 618 tm_reply->VF_ID = tm_request->VF_ID; 619 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz); 620 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply, 621 sz)) 622 pr_err("failure at %s:%d/%s()!\n", __FILE__, 623 __LINE__, __func__); 624 return 1; 625 } 626 627 dctlprintk(ioc, pr_info(MPT3SAS_FMT 628 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name, 629 desc, le16_to_cpu(tm_request->DevHandle), lun, 630 le16_to_cpu(tm_request->TaskMID))); 631 return 0; 632 } 633 634 /** 635 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode 636 * @ioc: per adapter object 637 * @karg - (struct mpt3_ioctl_command) 638 * @mf - pointer to mf in user space 639 */ 640 static long 641 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg, 642 void __user *mf) 643 { 644 MPI2RequestHeader_t *mpi_request = NULL, *request; 645 MPI2DefaultReply_t *mpi_reply; 646 Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL; 647 u32 ioc_state; 648 u16 smid; 649 unsigned long timeout; 650 u8 issue_reset; 651 u32 sz, sz_arg; 652 void *psge; 653 void *data_out = NULL; 654 dma_addr_t data_out_dma = 0; 655 size_t data_out_sz = 0; 656 void *data_in = NULL; 657 dma_addr_t data_in_dma = 0; 658 size_t data_in_sz = 0; 659 long ret; 660 u16 wait_state_count; 661 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE; 662 663 issue_reset = 0; 664 665 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) { 666 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n", 667 ioc->name, __func__); 668 ret = -EAGAIN; 669 goto out; 670 } 671 672 wait_state_count = 0; 673 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 674 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 675 if (wait_state_count++ == 10) { 676 pr_err(MPT3SAS_FMT 677 "%s: failed due to ioc not operational\n", 678 ioc->name, __func__); 679 ret = -EFAULT; 680 goto out; 681 } 682 ssleep(1); 683 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 684 pr_info(MPT3SAS_FMT 685 "%s: waiting for operational state(count=%d)\n", 686 ioc->name, 687 __func__, wait_state_count); 688 } 689 if (wait_state_count) 690 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 691 ioc->name, __func__); 692 693 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL); 694 if (!mpi_request) { 695 pr_err(MPT3SAS_FMT 696 "%s: failed obtaining a memory for mpi_request\n", 697 ioc->name, __func__); 698 ret = -ENOMEM; 699 goto out; 700 } 701 702 /* Check for overflow and wraparound */ 703 if (karg.data_sge_offset * 4 > ioc->request_sz || 704 karg.data_sge_offset > (UINT_MAX / 4)) { 705 ret = -EINVAL; 706 goto out; 707 } 708 709 /* copy in request message frame from user */ 710 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) { 711 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__, 712 __func__); 713 ret = -EFAULT; 714 goto out; 715 } 716 717 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) { 718 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx); 719 if (!smid) { 720 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 721 ioc->name, __func__); 722 ret = -EAGAIN; 723 goto out; 724 } 725 } else { 726 /* Use first reserved smid for passthrough ioctls */ 727 smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1; 728 } 729 730 ret = 0; 731 ioc->ctl_cmds.status = MPT3_CMD_PENDING; 732 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); 733 request = mpt3sas_base_get_msg_frame(ioc, smid); 734 memcpy(request, mpi_request, karg.data_sge_offset*4); 735 ioc->ctl_cmds.smid = smid; 736 data_out_sz = karg.data_out_size; 737 data_in_sz = karg.data_in_size; 738 739 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 740 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || 741 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT || 742 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH || 743 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) { 744 745 device_handle = le16_to_cpu(mpi_request->FunctionDependent1); 746 if (!device_handle || (device_handle > 747 ioc->facts.MaxDevHandle)) { 748 ret = -EINVAL; 749 mpt3sas_base_free_smid(ioc, smid); 750 goto out; 751 } 752 } 753 754 /* obtain dma-able memory for data transfer */ 755 if (data_out_sz) /* WRITE */ { 756 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz, 757 &data_out_dma); 758 if (!data_out) { 759 pr_err("failure at %s:%d/%s()!\n", __FILE__, 760 __LINE__, __func__); 761 ret = -ENOMEM; 762 mpt3sas_base_free_smid(ioc, smid); 763 goto out; 764 } 765 if (copy_from_user(data_out, karg.data_out_buf_ptr, 766 data_out_sz)) { 767 pr_err("failure at %s:%d/%s()!\n", __FILE__, 768 __LINE__, __func__); 769 ret = -EFAULT; 770 mpt3sas_base_free_smid(ioc, smid); 771 goto out; 772 } 773 } 774 775 if (data_in_sz) /* READ */ { 776 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz, 777 &data_in_dma); 778 if (!data_in) { 779 pr_err("failure at %s:%d/%s()!\n", __FILE__, 780 __LINE__, __func__); 781 ret = -ENOMEM; 782 mpt3sas_base_free_smid(ioc, smid); 783 goto out; 784 } 785 } 786 787 psge = (void *)request + (karg.data_sge_offset*4); 788 789 /* send command to firmware */ 790 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL); 791 792 init_completion(&ioc->ctl_cmds.done); 793 switch (mpi_request->Function) { 794 case MPI2_FUNCTION_NVME_ENCAPSULATED: 795 { 796 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request; 797 /* 798 * Get the Physical Address of the sense buffer. 799 * Use Error Response buffer address field to hold the sense 800 * buffer address. 801 * Clear the internal sense buffer, which will potentially hold 802 * the Completion Queue Entry on return, or 0 if no Entry. 803 * Build the PRPs and set direction bits. 804 * Send the request. 805 */ 806 nvme_encap_request->ErrorResponseBaseAddress = ioc->sense_dma & 807 0xFFFFFFFF00000000; 808 nvme_encap_request->ErrorResponseBaseAddress |= 809 (U64)mpt3sas_base_get_sense_buffer_dma(ioc, smid); 810 nvme_encap_request->ErrorResponseAllocationLength = 811 NVME_ERROR_RESPONSE_SIZE; 812 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE); 813 ioc->build_nvme_prp(ioc, smid, nvme_encap_request, 814 data_out_dma, data_out_sz, data_in_dma, data_in_sz); 815 if (test_bit(device_handle, ioc->device_remove_in_progress)) { 816 dtmprintk(ioc, pr_info(MPT3SAS_FMT "handle(0x%04x) :" 817 "ioctl failed due to device removal in progress\n", 818 ioc->name, device_handle)); 819 mpt3sas_base_free_smid(ioc, smid); 820 ret = -EINVAL; 821 goto out; 822 } 823 ioc->put_smid_nvme_encap(ioc, smid); 824 break; 825 } 826 case MPI2_FUNCTION_SCSI_IO_REQUEST: 827 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: 828 { 829 Mpi2SCSIIORequest_t *scsiio_request = 830 (Mpi2SCSIIORequest_t *)request; 831 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE; 832 scsiio_request->SenseBufferLowAddress = 833 mpt3sas_base_get_sense_buffer_dma(ioc, smid); 834 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE); 835 if (test_bit(device_handle, ioc->device_remove_in_progress)) { 836 dtmprintk(ioc, pr_info(MPT3SAS_FMT 837 "handle(0x%04x) :ioctl failed due to device removal in progress\n", 838 ioc->name, device_handle)); 839 mpt3sas_base_free_smid(ioc, smid); 840 ret = -EINVAL; 841 goto out; 842 } 843 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, 844 data_in_dma, data_in_sz); 845 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST) 846 ioc->put_smid_scsi_io(ioc, smid, device_handle); 847 else 848 ioc->put_smid_default(ioc, smid); 849 break; 850 } 851 case MPI2_FUNCTION_SCSI_TASK_MGMT: 852 { 853 Mpi2SCSITaskManagementRequest_t *tm_request = 854 (Mpi2SCSITaskManagementRequest_t *)request; 855 856 dtmprintk(ioc, pr_info(MPT3SAS_FMT 857 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n", 858 ioc->name, 859 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType)); 860 ioc->got_task_abort_from_ioctl = 1; 861 if (tm_request->TaskType == 862 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK || 863 tm_request->TaskType == 864 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) { 865 if (_ctl_set_task_mid(ioc, &karg, tm_request)) { 866 mpt3sas_base_free_smid(ioc, smid); 867 ioc->got_task_abort_from_ioctl = 0; 868 goto out; 869 } 870 } 871 ioc->got_task_abort_from_ioctl = 0; 872 873 if (test_bit(device_handle, ioc->device_remove_in_progress)) { 874 dtmprintk(ioc, pr_info(MPT3SAS_FMT 875 "handle(0x%04x) :ioctl failed due to device removal in progress\n", 876 ioc->name, device_handle)); 877 mpt3sas_base_free_smid(ioc, smid); 878 ret = -EINVAL; 879 goto out; 880 } 881 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu( 882 tm_request->DevHandle)); 883 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz, 884 data_in_dma, data_in_sz); 885 ioc->put_smid_hi_priority(ioc, smid, 0); 886 break; 887 } 888 case MPI2_FUNCTION_SMP_PASSTHROUGH: 889 { 890 Mpi2SmpPassthroughRequest_t *smp_request = 891 (Mpi2SmpPassthroughRequest_t *)mpi_request; 892 u8 *data; 893 894 /* ioc determines which port to use */ 895 smp_request->PhysicalPort = 0xFF; 896 if (smp_request->PassthroughFlags & 897 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE) 898 data = (u8 *)&smp_request->SGL; 899 else { 900 if (unlikely(data_out == NULL)) { 901 pr_err("failure at %s:%d/%s()!\n", 902 __FILE__, __LINE__, __func__); 903 mpt3sas_base_free_smid(ioc, smid); 904 ret = -EINVAL; 905 goto out; 906 } 907 data = data_out; 908 } 909 910 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) { 911 ioc->ioc_link_reset_in_progress = 1; 912 ioc->ignore_loginfos = 1; 913 } 914 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma, 915 data_in_sz); 916 ioc->put_smid_default(ioc, smid); 917 break; 918 } 919 case MPI2_FUNCTION_SATA_PASSTHROUGH: 920 { 921 if (test_bit(device_handle, ioc->device_remove_in_progress)) { 922 dtmprintk(ioc, pr_info(MPT3SAS_FMT 923 "handle(0x%04x) :ioctl failed due to device removal in progress\n", 924 ioc->name, device_handle)); 925 mpt3sas_base_free_smid(ioc, smid); 926 ret = -EINVAL; 927 goto out; 928 } 929 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma, 930 data_in_sz); 931 ioc->put_smid_default(ioc, smid); 932 break; 933 } 934 case MPI2_FUNCTION_FW_DOWNLOAD: 935 case MPI2_FUNCTION_FW_UPLOAD: 936 { 937 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma, 938 data_in_sz); 939 ioc->put_smid_default(ioc, smid); 940 break; 941 } 942 case MPI2_FUNCTION_TOOLBOX: 943 { 944 Mpi2ToolboxCleanRequest_t *toolbox_request = 945 (Mpi2ToolboxCleanRequest_t *)mpi_request; 946 947 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) { 948 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, 949 data_in_dma, data_in_sz); 950 } else { 951 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz, 952 data_in_dma, data_in_sz); 953 } 954 ioc->put_smid_default(ioc, smid); 955 break; 956 } 957 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: 958 { 959 Mpi2SasIoUnitControlRequest_t *sasiounit_request = 960 (Mpi2SasIoUnitControlRequest_t *)mpi_request; 961 962 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET 963 || sasiounit_request->Operation == 964 MPI2_SAS_OP_PHY_LINK_RESET) { 965 ioc->ioc_link_reset_in_progress = 1; 966 ioc->ignore_loginfos = 1; 967 } 968 /* drop to default case for posting the request */ 969 } 970 default: 971 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz, 972 data_in_dma, data_in_sz); 973 ioc->put_smid_default(ioc, smid); 974 break; 975 } 976 977 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT) 978 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT; 979 else 980 timeout = karg.timeout; 981 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ); 982 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) { 983 Mpi2SCSITaskManagementRequest_t *tm_request = 984 (Mpi2SCSITaskManagementRequest_t *)mpi_request; 985 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu( 986 tm_request->DevHandle)); 987 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT); 988 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH || 989 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) && 990 ioc->ioc_link_reset_in_progress) { 991 ioc->ioc_link_reset_in_progress = 0; 992 ioc->ignore_loginfos = 0; 993 } 994 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) { 995 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name, 996 __func__); 997 _debug_dump_mf(mpi_request, karg.data_sge_offset); 998 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET)) 999 issue_reset = 1; 1000 goto issue_host_reset; 1001 } 1002 1003 mpi_reply = ioc->ctl_cmds.reply; 1004 1005 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT && 1006 (ioc->logging_level & MPT_DEBUG_TM)) { 1007 Mpi2SCSITaskManagementReply_t *tm_reply = 1008 (Mpi2SCSITaskManagementReply_t *)mpi_reply; 1009 1010 pr_info(MPT3SAS_FMT "TASK_MGMT: " \ 1011 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), " 1012 "TerminationCount(0x%08x)\n", ioc->name, 1013 le16_to_cpu(tm_reply->IOCStatus), 1014 le32_to_cpu(tm_reply->IOCLogInfo), 1015 le32_to_cpu(tm_reply->TerminationCount)); 1016 } 1017 1018 /* copy out xdata to user */ 1019 if (data_in_sz) { 1020 if (copy_to_user(karg.data_in_buf_ptr, data_in, 1021 data_in_sz)) { 1022 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1023 __LINE__, __func__); 1024 ret = -ENODATA; 1025 goto out; 1026 } 1027 } 1028 1029 /* copy out reply message frame to user */ 1030 if (karg.max_reply_bytes) { 1031 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz); 1032 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply, 1033 sz)) { 1034 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1035 __LINE__, __func__); 1036 ret = -ENODATA; 1037 goto out; 1038 } 1039 } 1040 1041 /* copy out sense/NVMe Error Response to user */ 1042 if (karg.max_sense_bytes && (mpi_request->Function == 1043 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function == 1044 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function == 1045 MPI2_FUNCTION_NVME_ENCAPSULATED)) { 1046 if (karg.sense_data_ptr == NULL) { 1047 pr_info(MPT3SAS_FMT "Response buffer provided" 1048 " by application is NULL; Response data will" 1049 " not be returned.\n", ioc->name); 1050 goto out; 1051 } 1052 sz_arg = (mpi_request->Function == 1053 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE : 1054 SCSI_SENSE_BUFFERSIZE; 1055 sz = min_t(u32, karg.max_sense_bytes, sz_arg); 1056 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense, 1057 sz)) { 1058 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1059 __LINE__, __func__); 1060 ret = -ENODATA; 1061 goto out; 1062 } 1063 } 1064 1065 issue_host_reset: 1066 if (issue_reset) { 1067 ret = -ENODATA; 1068 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || 1069 mpi_request->Function == 1070 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || 1071 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) { 1072 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n", 1073 ioc->name, 1074 le16_to_cpu(mpi_request->FunctionDependent1)); 1075 mpt3sas_halt_firmware(ioc); 1076 mpt3sas_scsih_issue_locked_tm(ioc, 1077 le16_to_cpu(mpi_request->FunctionDependent1), 0, 1078 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, 30); 1079 } else 1080 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1081 } 1082 1083 out: 1084 1085 /* free memory associated with sg buffers */ 1086 if (data_in) 1087 pci_free_consistent(ioc->pdev, data_in_sz, data_in, 1088 data_in_dma); 1089 1090 if (data_out) 1091 pci_free_consistent(ioc->pdev, data_out_sz, data_out, 1092 data_out_dma); 1093 1094 kfree(mpi_request); 1095 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED; 1096 return ret; 1097 } 1098 1099 /** 1100 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode 1101 * @ioc: per adapter object 1102 * @arg - user space buffer containing ioctl content 1103 */ 1104 static long 1105 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1106 { 1107 struct mpt3_ioctl_iocinfo karg; 1108 1109 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name, 1110 __func__)); 1111 1112 memset(&karg, 0 , sizeof(karg)); 1113 if (ioc->pfacts) 1114 karg.port_number = ioc->pfacts[0].PortNumber; 1115 karg.hw_rev = ioc->pdev->revision; 1116 karg.pci_id = ioc->pdev->device; 1117 karg.subsystem_device = ioc->pdev->subsystem_device; 1118 karg.subsystem_vendor = ioc->pdev->subsystem_vendor; 1119 karg.pci_information.u.bits.bus = ioc->pdev->bus->number; 1120 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn); 1121 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn); 1122 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus); 1123 karg.firmware_version = ioc->facts.FWVersion.Word; 1124 strcpy(karg.driver_version, ioc->driver_name); 1125 strcat(karg.driver_version, "-"); 1126 switch (ioc->hba_mpi_version_belonged) { 1127 case MPI2_VERSION: 1128 if (ioc->is_warpdrive) 1129 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200; 1130 else 1131 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2; 1132 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION); 1133 break; 1134 case MPI25_VERSION: 1135 case MPI26_VERSION: 1136 if (ioc->is_gen35_ioc) 1137 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35; 1138 else 1139 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3; 1140 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION); 1141 break; 1142 } 1143 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); 1144 1145 if (copy_to_user(arg, &karg, sizeof(karg))) { 1146 pr_err("failure at %s:%d/%s()!\n", 1147 __FILE__, __LINE__, __func__); 1148 return -EFAULT; 1149 } 1150 return 0; 1151 } 1152 1153 /** 1154 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode 1155 * @ioc: per adapter object 1156 * @arg - user space buffer containing ioctl content 1157 */ 1158 static long 1159 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1160 { 1161 struct mpt3_ioctl_eventquery karg; 1162 1163 if (copy_from_user(&karg, arg, sizeof(karg))) { 1164 pr_err("failure at %s:%d/%s()!\n", 1165 __FILE__, __LINE__, __func__); 1166 return -EFAULT; 1167 } 1168 1169 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name, 1170 __func__)); 1171 1172 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE; 1173 memcpy(karg.event_types, ioc->event_type, 1174 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); 1175 1176 if (copy_to_user(arg, &karg, sizeof(karg))) { 1177 pr_err("failure at %s:%d/%s()!\n", 1178 __FILE__, __LINE__, __func__); 1179 return -EFAULT; 1180 } 1181 return 0; 1182 } 1183 1184 /** 1185 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode 1186 * @ioc: per adapter object 1187 * @arg - user space buffer containing ioctl content 1188 */ 1189 static long 1190 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1191 { 1192 struct mpt3_ioctl_eventenable karg; 1193 1194 if (copy_from_user(&karg, arg, sizeof(karg))) { 1195 pr_err("failure at %s:%d/%s()!\n", 1196 __FILE__, __LINE__, __func__); 1197 return -EFAULT; 1198 } 1199 1200 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name, 1201 __func__)); 1202 1203 memcpy(ioc->event_type, karg.event_types, 1204 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); 1205 mpt3sas_base_validate_event_type(ioc, ioc->event_type); 1206 1207 if (ioc->event_log) 1208 return 0; 1209 /* initialize event_log */ 1210 ioc->event_context = 0; 1211 ioc->aen_event_read_flag = 0; 1212 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE, 1213 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL); 1214 if (!ioc->event_log) { 1215 pr_err("failure at %s:%d/%s()!\n", 1216 __FILE__, __LINE__, __func__); 1217 return -ENOMEM; 1218 } 1219 return 0; 1220 } 1221 1222 /** 1223 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode 1224 * @ioc: per adapter object 1225 * @arg - user space buffer containing ioctl content 1226 */ 1227 static long 1228 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1229 { 1230 struct mpt3_ioctl_eventreport karg; 1231 u32 number_bytes, max_events, max; 1232 struct mpt3_ioctl_eventreport __user *uarg = arg; 1233 1234 if (copy_from_user(&karg, arg, sizeof(karg))) { 1235 pr_err("failure at %s:%d/%s()!\n", 1236 __FILE__, __LINE__, __func__); 1237 return -EFAULT; 1238 } 1239 1240 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name, 1241 __func__)); 1242 1243 number_bytes = karg.hdr.max_data_size - 1244 sizeof(struct mpt3_ioctl_header); 1245 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS); 1246 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events); 1247 1248 /* If fewer than 1 event is requested, there must have 1249 * been some type of error. 1250 */ 1251 if (!max || !ioc->event_log) 1252 return -ENODATA; 1253 1254 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS); 1255 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) { 1256 pr_err("failure at %s:%d/%s()!\n", 1257 __FILE__, __LINE__, __func__); 1258 return -EFAULT; 1259 } 1260 1261 /* reset flag so SIGIO can restart */ 1262 ioc->aen_event_read_flag = 0; 1263 return 0; 1264 } 1265 1266 /** 1267 * _ctl_do_reset - main handler for MPT3HARDRESET opcode 1268 * @ioc: per adapter object 1269 * @arg - user space buffer containing ioctl content 1270 */ 1271 static long 1272 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1273 { 1274 struct mpt3_ioctl_diag_reset karg; 1275 int retval; 1276 1277 if (copy_from_user(&karg, arg, sizeof(karg))) { 1278 pr_err("failure at %s:%d/%s()!\n", 1279 __FILE__, __LINE__, __func__); 1280 return -EFAULT; 1281 } 1282 1283 if (ioc->shost_recovery || ioc->pci_error_recovery || 1284 ioc->is_driver_loading) 1285 return -EAGAIN; 1286 1287 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name, 1288 __func__)); 1289 1290 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1291 pr_info(MPT3SAS_FMT "host reset: %s\n", 1292 ioc->name, ((!retval) ? "SUCCESS" : "FAILED")); 1293 return 0; 1294 } 1295 1296 /** 1297 * _ctl_btdh_search_sas_device - searching for sas device 1298 * @ioc: per adapter object 1299 * @btdh: btdh ioctl payload 1300 */ 1301 static int 1302 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc, 1303 struct mpt3_ioctl_btdh_mapping *btdh) 1304 { 1305 struct _sas_device *sas_device; 1306 unsigned long flags; 1307 int rc = 0; 1308 1309 if (list_empty(&ioc->sas_device_list)) 1310 return rc; 1311 1312 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1313 list_for_each_entry(sas_device, &ioc->sas_device_list, list) { 1314 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && 1315 btdh->handle == sas_device->handle) { 1316 btdh->bus = sas_device->channel; 1317 btdh->id = sas_device->id; 1318 rc = 1; 1319 goto out; 1320 } else if (btdh->bus == sas_device->channel && btdh->id == 1321 sas_device->id && btdh->handle == 0xFFFF) { 1322 btdh->handle = sas_device->handle; 1323 rc = 1; 1324 goto out; 1325 } 1326 } 1327 out: 1328 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1329 return rc; 1330 } 1331 1332 /** 1333 * _ctl_btdh_search_pcie_device - searching for pcie device 1334 * @ioc: per adapter object 1335 * @btdh: btdh ioctl payload 1336 */ 1337 static int 1338 _ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc, 1339 struct mpt3_ioctl_btdh_mapping *btdh) 1340 { 1341 struct _pcie_device *pcie_device; 1342 unsigned long flags; 1343 int rc = 0; 1344 1345 if (list_empty(&ioc->pcie_device_list)) 1346 return rc; 1347 1348 spin_lock_irqsave(&ioc->pcie_device_lock, flags); 1349 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) { 1350 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && 1351 btdh->handle == pcie_device->handle) { 1352 btdh->bus = pcie_device->channel; 1353 btdh->id = pcie_device->id; 1354 rc = 1; 1355 goto out; 1356 } else if (btdh->bus == pcie_device->channel && btdh->id == 1357 pcie_device->id && btdh->handle == 0xFFFF) { 1358 btdh->handle = pcie_device->handle; 1359 rc = 1; 1360 goto out; 1361 } 1362 } 1363 out: 1364 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags); 1365 return rc; 1366 } 1367 1368 /** 1369 * _ctl_btdh_search_raid_device - searching for raid device 1370 * @ioc: per adapter object 1371 * @btdh: btdh ioctl payload 1372 */ 1373 static int 1374 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc, 1375 struct mpt3_ioctl_btdh_mapping *btdh) 1376 { 1377 struct _raid_device *raid_device; 1378 unsigned long flags; 1379 int rc = 0; 1380 1381 if (list_empty(&ioc->raid_device_list)) 1382 return rc; 1383 1384 spin_lock_irqsave(&ioc->raid_device_lock, flags); 1385 list_for_each_entry(raid_device, &ioc->raid_device_list, list) { 1386 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && 1387 btdh->handle == raid_device->handle) { 1388 btdh->bus = raid_device->channel; 1389 btdh->id = raid_device->id; 1390 rc = 1; 1391 goto out; 1392 } else if (btdh->bus == raid_device->channel && btdh->id == 1393 raid_device->id && btdh->handle == 0xFFFF) { 1394 btdh->handle = raid_device->handle; 1395 rc = 1; 1396 goto out; 1397 } 1398 } 1399 out: 1400 spin_unlock_irqrestore(&ioc->raid_device_lock, flags); 1401 return rc; 1402 } 1403 1404 /** 1405 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode 1406 * @ioc: per adapter object 1407 * @arg - user space buffer containing ioctl content 1408 */ 1409 static long 1410 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1411 { 1412 struct mpt3_ioctl_btdh_mapping karg; 1413 int rc; 1414 1415 if (copy_from_user(&karg, arg, sizeof(karg))) { 1416 pr_err("failure at %s:%d/%s()!\n", 1417 __FILE__, __LINE__, __func__); 1418 return -EFAULT; 1419 } 1420 1421 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 1422 __func__)); 1423 1424 rc = _ctl_btdh_search_sas_device(ioc, &karg); 1425 if (!rc) 1426 rc = _ctl_btdh_search_pcie_device(ioc, &karg); 1427 if (!rc) 1428 _ctl_btdh_search_raid_device(ioc, &karg); 1429 1430 if (copy_to_user(arg, &karg, sizeof(karg))) { 1431 pr_err("failure at %s:%d/%s()!\n", 1432 __FILE__, __LINE__, __func__); 1433 return -EFAULT; 1434 } 1435 return 0; 1436 } 1437 1438 /** 1439 * _ctl_diag_capability - return diag buffer capability 1440 * @ioc: per adapter object 1441 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED 1442 * 1443 * returns 1 when diag buffer support is enabled in firmware 1444 */ 1445 static u8 1446 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type) 1447 { 1448 u8 rc = 0; 1449 1450 switch (buffer_type) { 1451 case MPI2_DIAG_BUF_TYPE_TRACE: 1452 if (ioc->facts.IOCCapabilities & 1453 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) 1454 rc = 1; 1455 break; 1456 case MPI2_DIAG_BUF_TYPE_SNAPSHOT: 1457 if (ioc->facts.IOCCapabilities & 1458 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) 1459 rc = 1; 1460 break; 1461 case MPI2_DIAG_BUF_TYPE_EXTENDED: 1462 if (ioc->facts.IOCCapabilities & 1463 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) 1464 rc = 1; 1465 } 1466 1467 return rc; 1468 } 1469 1470 1471 /** 1472 * _ctl_diag_register_2 - wrapper for registering diag buffer support 1473 * @ioc: per adapter object 1474 * @diag_register: the diag_register struct passed in from user space 1475 * 1476 */ 1477 static long 1478 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc, 1479 struct mpt3_diag_register *diag_register) 1480 { 1481 int rc, i; 1482 void *request_data = NULL; 1483 dma_addr_t request_data_dma; 1484 u32 request_data_sz = 0; 1485 Mpi2DiagBufferPostRequest_t *mpi_request; 1486 Mpi2DiagBufferPostReply_t *mpi_reply; 1487 u8 buffer_type; 1488 u16 smid; 1489 u16 ioc_status; 1490 u32 ioc_state; 1491 u8 issue_reset = 0; 1492 1493 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 1494 __func__)); 1495 1496 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1497 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1498 pr_err(MPT3SAS_FMT 1499 "%s: failed due to ioc not operational\n", 1500 ioc->name, __func__); 1501 rc = -EAGAIN; 1502 goto out; 1503 } 1504 1505 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) { 1506 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n", 1507 ioc->name, __func__); 1508 rc = -EAGAIN; 1509 goto out; 1510 } 1511 1512 buffer_type = diag_register->buffer_type; 1513 if (!_ctl_diag_capability(ioc, buffer_type)) { 1514 pr_err(MPT3SAS_FMT 1515 "%s: doesn't have capability for buffer_type(0x%02x)\n", 1516 ioc->name, __func__, buffer_type); 1517 return -EPERM; 1518 } 1519 1520 if (ioc->diag_buffer_status[buffer_type] & 1521 MPT3_DIAG_BUFFER_IS_REGISTERED) { 1522 pr_err(MPT3SAS_FMT 1523 "%s: already has a registered buffer for buffer_type(0x%02x)\n", 1524 ioc->name, __func__, 1525 buffer_type); 1526 return -EINVAL; 1527 } 1528 1529 if (diag_register->requested_buffer_size % 4) { 1530 pr_err(MPT3SAS_FMT 1531 "%s: the requested_buffer_size is not 4 byte aligned\n", 1532 ioc->name, __func__); 1533 return -EINVAL; 1534 } 1535 1536 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx); 1537 if (!smid) { 1538 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 1539 ioc->name, __func__); 1540 rc = -EAGAIN; 1541 goto out; 1542 } 1543 1544 rc = 0; 1545 ioc->ctl_cmds.status = MPT3_CMD_PENDING; 1546 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); 1547 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1548 ioc->ctl_cmds.smid = smid; 1549 1550 request_data = ioc->diag_buffer[buffer_type]; 1551 request_data_sz = diag_register->requested_buffer_size; 1552 ioc->unique_id[buffer_type] = diag_register->unique_id; 1553 ioc->diag_buffer_status[buffer_type] = 0; 1554 memcpy(ioc->product_specific[buffer_type], 1555 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS); 1556 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags; 1557 1558 if (request_data) { 1559 request_data_dma = ioc->diag_buffer_dma[buffer_type]; 1560 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) { 1561 pci_free_consistent(ioc->pdev, 1562 ioc->diag_buffer_sz[buffer_type], 1563 request_data, request_data_dma); 1564 request_data = NULL; 1565 } 1566 } 1567 1568 if (request_data == NULL) { 1569 ioc->diag_buffer_sz[buffer_type] = 0; 1570 ioc->diag_buffer_dma[buffer_type] = 0; 1571 request_data = pci_alloc_consistent( 1572 ioc->pdev, request_data_sz, &request_data_dma); 1573 if (request_data == NULL) { 1574 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \ 1575 " for diag buffers, requested size(%d)\n", 1576 ioc->name, __func__, request_data_sz); 1577 mpt3sas_base_free_smid(ioc, smid); 1578 return -ENOMEM; 1579 } 1580 ioc->diag_buffer[buffer_type] = request_data; 1581 ioc->diag_buffer_sz[buffer_type] = request_data_sz; 1582 ioc->diag_buffer_dma[buffer_type] = request_data_dma; 1583 } 1584 1585 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; 1586 mpi_request->BufferType = diag_register->buffer_type; 1587 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags); 1588 mpi_request->BufferAddress = cpu_to_le64(request_data_dma); 1589 mpi_request->BufferLength = cpu_to_le32(request_data_sz); 1590 mpi_request->VF_ID = 0; /* TODO */ 1591 mpi_request->VP_ID = 0; 1592 1593 dctlprintk(ioc, pr_info(MPT3SAS_FMT 1594 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n", 1595 ioc->name, __func__, request_data, 1596 (unsigned long long)request_data_dma, 1597 le32_to_cpu(mpi_request->BufferLength))); 1598 1599 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++) 1600 mpi_request->ProductSpecific[i] = 1601 cpu_to_le32(ioc->product_specific[buffer_type][i]); 1602 1603 init_completion(&ioc->ctl_cmds.done); 1604 ioc->put_smid_default(ioc, smid); 1605 wait_for_completion_timeout(&ioc->ctl_cmds.done, 1606 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ); 1607 1608 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) { 1609 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name, 1610 __func__); 1611 _debug_dump_mf(mpi_request, 1612 sizeof(Mpi2DiagBufferPostRequest_t)/4); 1613 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET)) 1614 issue_reset = 1; 1615 goto issue_host_reset; 1616 } 1617 1618 /* process the completed Reply Message Frame */ 1619 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) { 1620 pr_err(MPT3SAS_FMT "%s: no reply message\n", 1621 ioc->name, __func__); 1622 rc = -EFAULT; 1623 goto out; 1624 } 1625 1626 mpi_reply = ioc->ctl_cmds.reply; 1627 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 1628 1629 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 1630 ioc->diag_buffer_status[buffer_type] |= 1631 MPT3_DIAG_BUFFER_IS_REGISTERED; 1632 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n", 1633 ioc->name, __func__)); 1634 } else { 1635 pr_info(MPT3SAS_FMT 1636 "%s: ioc_status(0x%04x) log_info(0x%08x)\n", 1637 ioc->name, __func__, 1638 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo)); 1639 rc = -EFAULT; 1640 } 1641 1642 issue_host_reset: 1643 if (issue_reset) 1644 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1645 1646 out: 1647 1648 if (rc && request_data) 1649 pci_free_consistent(ioc->pdev, request_data_sz, 1650 request_data, request_data_dma); 1651 1652 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED; 1653 return rc; 1654 } 1655 1656 /** 1657 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time 1658 * @ioc: per adapter object 1659 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1 1660 * 1661 * This is called when command line option diag_buffer_enable is enabled 1662 * at driver load time. 1663 */ 1664 void 1665 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register) 1666 { 1667 struct mpt3_diag_register diag_register; 1668 1669 memset(&diag_register, 0, sizeof(struct mpt3_diag_register)); 1670 1671 if (bits_to_register & 1) { 1672 pr_info(MPT3SAS_FMT "registering trace buffer support\n", 1673 ioc->name); 1674 ioc->diag_trigger_master.MasterData = 1675 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET); 1676 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE; 1677 /* register for 2MB buffers */ 1678 diag_register.requested_buffer_size = 2 * (1024 * 1024); 1679 diag_register.unique_id = 0x7075900; 1680 _ctl_diag_register_2(ioc, &diag_register); 1681 } 1682 1683 if (bits_to_register & 2) { 1684 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n", 1685 ioc->name); 1686 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT; 1687 /* register for 2MB buffers */ 1688 diag_register.requested_buffer_size = 2 * (1024 * 1024); 1689 diag_register.unique_id = 0x7075901; 1690 _ctl_diag_register_2(ioc, &diag_register); 1691 } 1692 1693 if (bits_to_register & 4) { 1694 pr_info(MPT3SAS_FMT "registering extended buffer support\n", 1695 ioc->name); 1696 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED; 1697 /* register for 2MB buffers */ 1698 diag_register.requested_buffer_size = 2 * (1024 * 1024); 1699 diag_register.unique_id = 0x7075901; 1700 _ctl_diag_register_2(ioc, &diag_register); 1701 } 1702 } 1703 1704 /** 1705 * _ctl_diag_register - application register with driver 1706 * @ioc: per adapter object 1707 * @arg - user space buffer containing ioctl content 1708 * 1709 * This will allow the driver to setup any required buffers that will be 1710 * needed by firmware to communicate with the driver. 1711 */ 1712 static long 1713 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1714 { 1715 struct mpt3_diag_register karg; 1716 long rc; 1717 1718 if (copy_from_user(&karg, arg, sizeof(karg))) { 1719 pr_err("failure at %s:%d/%s()!\n", 1720 __FILE__, __LINE__, __func__); 1721 return -EFAULT; 1722 } 1723 1724 rc = _ctl_diag_register_2(ioc, &karg); 1725 return rc; 1726 } 1727 1728 /** 1729 * _ctl_diag_unregister - application unregister with driver 1730 * @ioc: per adapter object 1731 * @arg - user space buffer containing ioctl content 1732 * 1733 * This will allow the driver to cleanup any memory allocated for diag 1734 * messages and to free up any resources. 1735 */ 1736 static long 1737 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1738 { 1739 struct mpt3_diag_unregister karg; 1740 void *request_data; 1741 dma_addr_t request_data_dma; 1742 u32 request_data_sz; 1743 u8 buffer_type; 1744 1745 if (copy_from_user(&karg, arg, sizeof(karg))) { 1746 pr_err("failure at %s:%d/%s()!\n", 1747 __FILE__, __LINE__, __func__); 1748 return -EFAULT; 1749 } 1750 1751 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 1752 __func__)); 1753 1754 buffer_type = karg.unique_id & 0x000000ff; 1755 if (!_ctl_diag_capability(ioc, buffer_type)) { 1756 pr_err(MPT3SAS_FMT 1757 "%s: doesn't have capability for buffer_type(0x%02x)\n", 1758 ioc->name, __func__, buffer_type); 1759 return -EPERM; 1760 } 1761 1762 if ((ioc->diag_buffer_status[buffer_type] & 1763 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) { 1764 pr_err(MPT3SAS_FMT 1765 "%s: buffer_type(0x%02x) is not registered\n", 1766 ioc->name, __func__, buffer_type); 1767 return -EINVAL; 1768 } 1769 if ((ioc->diag_buffer_status[buffer_type] & 1770 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) { 1771 pr_err(MPT3SAS_FMT 1772 "%s: buffer_type(0x%02x) has not been released\n", 1773 ioc->name, __func__, buffer_type); 1774 return -EINVAL; 1775 } 1776 1777 if (karg.unique_id != ioc->unique_id[buffer_type]) { 1778 pr_err(MPT3SAS_FMT 1779 "%s: unique_id(0x%08x) is not registered\n", 1780 ioc->name, __func__, karg.unique_id); 1781 return -EINVAL; 1782 } 1783 1784 request_data = ioc->diag_buffer[buffer_type]; 1785 if (!request_data) { 1786 pr_err(MPT3SAS_FMT 1787 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n", 1788 ioc->name, __func__, buffer_type); 1789 return -ENOMEM; 1790 } 1791 1792 request_data_sz = ioc->diag_buffer_sz[buffer_type]; 1793 request_data_dma = ioc->diag_buffer_dma[buffer_type]; 1794 pci_free_consistent(ioc->pdev, request_data_sz, 1795 request_data, request_data_dma); 1796 ioc->diag_buffer[buffer_type] = NULL; 1797 ioc->diag_buffer_status[buffer_type] = 0; 1798 return 0; 1799 } 1800 1801 /** 1802 * _ctl_diag_query - query relevant info associated with diag buffers 1803 * @ioc: per adapter object 1804 * @arg - user space buffer containing ioctl content 1805 * 1806 * The application will send only buffer_type and unique_id. Driver will 1807 * inspect unique_id first, if valid, fill in all the info. If unique_id is 1808 * 0x00, the driver will return info specified by Buffer Type. 1809 */ 1810 static long 1811 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 1812 { 1813 struct mpt3_diag_query karg; 1814 void *request_data; 1815 int i; 1816 u8 buffer_type; 1817 1818 if (copy_from_user(&karg, arg, sizeof(karg))) { 1819 pr_err("failure at %s:%d/%s()!\n", 1820 __FILE__, __LINE__, __func__); 1821 return -EFAULT; 1822 } 1823 1824 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 1825 __func__)); 1826 1827 karg.application_flags = 0; 1828 buffer_type = karg.buffer_type; 1829 1830 if (!_ctl_diag_capability(ioc, buffer_type)) { 1831 pr_err(MPT3SAS_FMT 1832 "%s: doesn't have capability for buffer_type(0x%02x)\n", 1833 ioc->name, __func__, buffer_type); 1834 return -EPERM; 1835 } 1836 1837 if ((ioc->diag_buffer_status[buffer_type] & 1838 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) { 1839 pr_err(MPT3SAS_FMT 1840 "%s: buffer_type(0x%02x) is not registered\n", 1841 ioc->name, __func__, buffer_type); 1842 return -EINVAL; 1843 } 1844 1845 if (karg.unique_id & 0xffffff00) { 1846 if (karg.unique_id != ioc->unique_id[buffer_type]) { 1847 pr_err(MPT3SAS_FMT 1848 "%s: unique_id(0x%08x) is not registered\n", 1849 ioc->name, __func__, karg.unique_id); 1850 return -EINVAL; 1851 } 1852 } 1853 1854 request_data = ioc->diag_buffer[buffer_type]; 1855 if (!request_data) { 1856 pr_err(MPT3SAS_FMT 1857 "%s: doesn't have buffer for buffer_type(0x%02x)\n", 1858 ioc->name, __func__, buffer_type); 1859 return -ENOMEM; 1860 } 1861 1862 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED) 1863 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED | 1864 MPT3_APP_FLAGS_BUFFER_VALID); 1865 else 1866 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED | 1867 MPT3_APP_FLAGS_BUFFER_VALID | 1868 MPT3_APP_FLAGS_FW_BUFFER_ACCESS); 1869 1870 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++) 1871 karg.product_specific[i] = 1872 ioc->product_specific[buffer_type][i]; 1873 1874 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type]; 1875 karg.driver_added_buffer_size = 0; 1876 karg.unique_id = ioc->unique_id[buffer_type]; 1877 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type]; 1878 1879 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) { 1880 pr_err(MPT3SAS_FMT 1881 "%s: unable to write mpt3_diag_query data @ %p\n", 1882 ioc->name, __func__, arg); 1883 return -EFAULT; 1884 } 1885 return 0; 1886 } 1887 1888 /** 1889 * mpt3sas_send_diag_release - Diag Release Message 1890 * @ioc: per adapter object 1891 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED 1892 * @issue_reset - specifies whether host reset is required. 1893 * 1894 */ 1895 int 1896 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type, 1897 u8 *issue_reset) 1898 { 1899 Mpi2DiagReleaseRequest_t *mpi_request; 1900 Mpi2DiagReleaseReply_t *mpi_reply; 1901 u16 smid; 1902 u16 ioc_status; 1903 u32 ioc_state; 1904 int rc; 1905 1906 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 1907 __func__)); 1908 1909 rc = 0; 1910 *issue_reset = 0; 1911 1912 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1913 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1914 if (ioc->diag_buffer_status[buffer_type] & 1915 MPT3_DIAG_BUFFER_IS_REGISTERED) 1916 ioc->diag_buffer_status[buffer_type] |= 1917 MPT3_DIAG_BUFFER_IS_RELEASED; 1918 dctlprintk(ioc, pr_info(MPT3SAS_FMT 1919 "%s: skipping due to FAULT state\n", ioc->name, 1920 __func__)); 1921 rc = -EAGAIN; 1922 goto out; 1923 } 1924 1925 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) { 1926 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n", 1927 ioc->name, __func__); 1928 rc = -EAGAIN; 1929 goto out; 1930 } 1931 1932 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx); 1933 if (!smid) { 1934 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 1935 ioc->name, __func__); 1936 rc = -EAGAIN; 1937 goto out; 1938 } 1939 1940 ioc->ctl_cmds.status = MPT3_CMD_PENDING; 1941 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); 1942 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1943 ioc->ctl_cmds.smid = smid; 1944 1945 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE; 1946 mpi_request->BufferType = buffer_type; 1947 mpi_request->VF_ID = 0; /* TODO */ 1948 mpi_request->VP_ID = 0; 1949 1950 init_completion(&ioc->ctl_cmds.done); 1951 ioc->put_smid_default(ioc, smid); 1952 wait_for_completion_timeout(&ioc->ctl_cmds.done, 1953 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ); 1954 1955 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) { 1956 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name, 1957 __func__); 1958 _debug_dump_mf(mpi_request, 1959 sizeof(Mpi2DiagReleaseRequest_t)/4); 1960 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET)) 1961 *issue_reset = 1; 1962 rc = -EFAULT; 1963 goto out; 1964 } 1965 1966 /* process the completed Reply Message Frame */ 1967 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) { 1968 pr_err(MPT3SAS_FMT "%s: no reply message\n", 1969 ioc->name, __func__); 1970 rc = -EFAULT; 1971 goto out; 1972 } 1973 1974 mpi_reply = ioc->ctl_cmds.reply; 1975 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 1976 1977 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 1978 ioc->diag_buffer_status[buffer_type] |= 1979 MPT3_DIAG_BUFFER_IS_RELEASED; 1980 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n", 1981 ioc->name, __func__)); 1982 } else { 1983 pr_info(MPT3SAS_FMT 1984 "%s: ioc_status(0x%04x) log_info(0x%08x)\n", 1985 ioc->name, __func__, 1986 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo)); 1987 rc = -EFAULT; 1988 } 1989 1990 out: 1991 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED; 1992 return rc; 1993 } 1994 1995 /** 1996 * _ctl_diag_release - request to send Diag Release Message to firmware 1997 * @arg - user space buffer containing ioctl content 1998 * 1999 * This allows ownership of the specified buffer to returned to the driver, 2000 * allowing an application to read the buffer without fear that firmware is 2001 * overwriting information in the buffer. 2002 */ 2003 static long 2004 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 2005 { 2006 struct mpt3_diag_release karg; 2007 void *request_data; 2008 int rc; 2009 u8 buffer_type; 2010 u8 issue_reset = 0; 2011 2012 if (copy_from_user(&karg, arg, sizeof(karg))) { 2013 pr_err("failure at %s:%d/%s()!\n", 2014 __FILE__, __LINE__, __func__); 2015 return -EFAULT; 2016 } 2017 2018 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 2019 __func__)); 2020 2021 buffer_type = karg.unique_id & 0x000000ff; 2022 if (!_ctl_diag_capability(ioc, buffer_type)) { 2023 pr_err(MPT3SAS_FMT 2024 "%s: doesn't have capability for buffer_type(0x%02x)\n", 2025 ioc->name, __func__, buffer_type); 2026 return -EPERM; 2027 } 2028 2029 if ((ioc->diag_buffer_status[buffer_type] & 2030 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) { 2031 pr_err(MPT3SAS_FMT 2032 "%s: buffer_type(0x%02x) is not registered\n", 2033 ioc->name, __func__, buffer_type); 2034 return -EINVAL; 2035 } 2036 2037 if (karg.unique_id != ioc->unique_id[buffer_type]) { 2038 pr_err(MPT3SAS_FMT 2039 "%s: unique_id(0x%08x) is not registered\n", 2040 ioc->name, __func__, karg.unique_id); 2041 return -EINVAL; 2042 } 2043 2044 if (ioc->diag_buffer_status[buffer_type] & 2045 MPT3_DIAG_BUFFER_IS_RELEASED) { 2046 pr_err(MPT3SAS_FMT 2047 "%s: buffer_type(0x%02x) is already released\n", 2048 ioc->name, __func__, 2049 buffer_type); 2050 return 0; 2051 } 2052 2053 request_data = ioc->diag_buffer[buffer_type]; 2054 2055 if (!request_data) { 2056 pr_err(MPT3SAS_FMT 2057 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n", 2058 ioc->name, __func__, buffer_type); 2059 return -ENOMEM; 2060 } 2061 2062 /* buffers were released by due to host reset */ 2063 if ((ioc->diag_buffer_status[buffer_type] & 2064 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) { 2065 ioc->diag_buffer_status[buffer_type] |= 2066 MPT3_DIAG_BUFFER_IS_RELEASED; 2067 ioc->diag_buffer_status[buffer_type] &= 2068 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET; 2069 pr_err(MPT3SAS_FMT 2070 "%s: buffer_type(0x%02x) was released due to host reset\n", 2071 ioc->name, __func__, buffer_type); 2072 return 0; 2073 } 2074 2075 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset); 2076 2077 if (issue_reset) 2078 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 2079 2080 return rc; 2081 } 2082 2083 /** 2084 * _ctl_diag_read_buffer - request for copy of the diag buffer 2085 * @ioc: per adapter object 2086 * @arg - user space buffer containing ioctl content 2087 */ 2088 static long 2089 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg) 2090 { 2091 struct mpt3_diag_read_buffer karg; 2092 struct mpt3_diag_read_buffer __user *uarg = arg; 2093 void *request_data, *diag_data; 2094 Mpi2DiagBufferPostRequest_t *mpi_request; 2095 Mpi2DiagBufferPostReply_t *mpi_reply; 2096 int rc, i; 2097 u8 buffer_type; 2098 unsigned long request_size, copy_size; 2099 u16 smid; 2100 u16 ioc_status; 2101 u8 issue_reset = 0; 2102 2103 if (copy_from_user(&karg, arg, sizeof(karg))) { 2104 pr_err("failure at %s:%d/%s()!\n", 2105 __FILE__, __LINE__, __func__); 2106 return -EFAULT; 2107 } 2108 2109 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 2110 __func__)); 2111 2112 buffer_type = karg.unique_id & 0x000000ff; 2113 if (!_ctl_diag_capability(ioc, buffer_type)) { 2114 pr_err(MPT3SAS_FMT 2115 "%s: doesn't have capability for buffer_type(0x%02x)\n", 2116 ioc->name, __func__, buffer_type); 2117 return -EPERM; 2118 } 2119 2120 if (karg.unique_id != ioc->unique_id[buffer_type]) { 2121 pr_err(MPT3SAS_FMT 2122 "%s: unique_id(0x%08x) is not registered\n", 2123 ioc->name, __func__, karg.unique_id); 2124 return -EINVAL; 2125 } 2126 2127 request_data = ioc->diag_buffer[buffer_type]; 2128 if (!request_data) { 2129 pr_err(MPT3SAS_FMT 2130 "%s: doesn't have buffer for buffer_type(0x%02x)\n", 2131 ioc->name, __func__, buffer_type); 2132 return -ENOMEM; 2133 } 2134 2135 request_size = ioc->diag_buffer_sz[buffer_type]; 2136 2137 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) { 2138 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \ 2139 "or bytes_to_read are not 4 byte aligned\n", ioc->name, 2140 __func__); 2141 return -EINVAL; 2142 } 2143 2144 if (karg.starting_offset > request_size) 2145 return -EINVAL; 2146 2147 diag_data = (void *)(request_data + karg.starting_offset); 2148 dctlprintk(ioc, pr_info(MPT3SAS_FMT 2149 "%s: diag_buffer(%p), offset(%d), sz(%d)\n", 2150 ioc->name, __func__, 2151 diag_data, karg.starting_offset, karg.bytes_to_read)); 2152 2153 /* Truncate data on requests that are too large */ 2154 if ((diag_data + karg.bytes_to_read < diag_data) || 2155 (diag_data + karg.bytes_to_read > request_data + request_size)) 2156 copy_size = request_size - karg.starting_offset; 2157 else 2158 copy_size = karg.bytes_to_read; 2159 2160 if (copy_to_user((void __user *)uarg->diagnostic_data, 2161 diag_data, copy_size)) { 2162 pr_err(MPT3SAS_FMT 2163 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n", 2164 ioc->name, __func__, diag_data); 2165 return -EFAULT; 2166 } 2167 2168 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0) 2169 return 0; 2170 2171 dctlprintk(ioc, pr_info(MPT3SAS_FMT 2172 "%s: Reregister buffer_type(0x%02x)\n", 2173 ioc->name, __func__, buffer_type)); 2174 if ((ioc->diag_buffer_status[buffer_type] & 2175 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) { 2176 dctlprintk(ioc, pr_info(MPT3SAS_FMT 2177 "%s: buffer_type(0x%02x) is still registered\n", 2178 ioc->name, __func__, buffer_type)); 2179 return 0; 2180 } 2181 /* Get a free request frame and save the message context. 2182 */ 2183 2184 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) { 2185 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n", 2186 ioc->name, __func__); 2187 rc = -EAGAIN; 2188 goto out; 2189 } 2190 2191 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx); 2192 if (!smid) { 2193 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 2194 ioc->name, __func__); 2195 rc = -EAGAIN; 2196 goto out; 2197 } 2198 2199 rc = 0; 2200 ioc->ctl_cmds.status = MPT3_CMD_PENDING; 2201 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); 2202 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2203 ioc->ctl_cmds.smid = smid; 2204 2205 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; 2206 mpi_request->BufferType = buffer_type; 2207 mpi_request->BufferLength = 2208 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]); 2209 mpi_request->BufferAddress = 2210 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]); 2211 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++) 2212 mpi_request->ProductSpecific[i] = 2213 cpu_to_le32(ioc->product_specific[buffer_type][i]); 2214 mpi_request->VF_ID = 0; /* TODO */ 2215 mpi_request->VP_ID = 0; 2216 2217 init_completion(&ioc->ctl_cmds.done); 2218 ioc->put_smid_default(ioc, smid); 2219 wait_for_completion_timeout(&ioc->ctl_cmds.done, 2220 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ); 2221 2222 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) { 2223 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name, 2224 __func__); 2225 _debug_dump_mf(mpi_request, 2226 sizeof(Mpi2DiagBufferPostRequest_t)/4); 2227 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET)) 2228 issue_reset = 1; 2229 goto issue_host_reset; 2230 } 2231 2232 /* process the completed Reply Message Frame */ 2233 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) { 2234 pr_err(MPT3SAS_FMT "%s: no reply message\n", 2235 ioc->name, __func__); 2236 rc = -EFAULT; 2237 goto out; 2238 } 2239 2240 mpi_reply = ioc->ctl_cmds.reply; 2241 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; 2242 2243 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { 2244 ioc->diag_buffer_status[buffer_type] |= 2245 MPT3_DIAG_BUFFER_IS_REGISTERED; 2246 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n", 2247 ioc->name, __func__)); 2248 } else { 2249 pr_info(MPT3SAS_FMT 2250 "%s: ioc_status(0x%04x) log_info(0x%08x)\n", 2251 ioc->name, __func__, 2252 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo)); 2253 rc = -EFAULT; 2254 } 2255 2256 issue_host_reset: 2257 if (issue_reset) 2258 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 2259 2260 out: 2261 2262 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED; 2263 return rc; 2264 } 2265 2266 2267 2268 #ifdef CONFIG_COMPAT 2269 /** 2270 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit. 2271 * @ioc: per adapter object 2272 * @cmd - ioctl opcode 2273 * @arg - (struct mpt3_ioctl_command32) 2274 * 2275 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os. 2276 */ 2277 static long 2278 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd, 2279 void __user *arg) 2280 { 2281 struct mpt3_ioctl_command32 karg32; 2282 struct mpt3_ioctl_command32 __user *uarg; 2283 struct mpt3_ioctl_command karg; 2284 2285 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32)) 2286 return -EINVAL; 2287 2288 uarg = (struct mpt3_ioctl_command32 __user *) arg; 2289 2290 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) { 2291 pr_err("failure at %s:%d/%s()!\n", 2292 __FILE__, __LINE__, __func__); 2293 return -EFAULT; 2294 } 2295 2296 memset(&karg, 0, sizeof(struct mpt3_ioctl_command)); 2297 karg.hdr.ioc_number = karg32.hdr.ioc_number; 2298 karg.hdr.port_number = karg32.hdr.port_number; 2299 karg.hdr.max_data_size = karg32.hdr.max_data_size; 2300 karg.timeout = karg32.timeout; 2301 karg.max_reply_bytes = karg32.max_reply_bytes; 2302 karg.data_in_size = karg32.data_in_size; 2303 karg.data_out_size = karg32.data_out_size; 2304 karg.max_sense_bytes = karg32.max_sense_bytes; 2305 karg.data_sge_offset = karg32.data_sge_offset; 2306 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr); 2307 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr); 2308 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr); 2309 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr); 2310 return _ctl_do_mpt_command(ioc, karg, &uarg->mf); 2311 } 2312 #endif 2313 2314 /** 2315 * _ctl_ioctl_main - main ioctl entry point 2316 * @file - (struct file) 2317 * @cmd - ioctl opcode 2318 * @arg - user space data buffer 2319 * @compat - handles 32 bit applications in 64bit os 2320 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device & 2321 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device. 2322 */ 2323 static long 2324 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg, 2325 u8 compat, u16 mpi_version) 2326 { 2327 struct MPT3SAS_ADAPTER *ioc; 2328 struct mpt3_ioctl_header ioctl_header; 2329 enum block_state state; 2330 long ret = -EINVAL; 2331 2332 /* get IOCTL header */ 2333 if (copy_from_user(&ioctl_header, (char __user *)arg, 2334 sizeof(struct mpt3_ioctl_header))) { 2335 pr_err("failure at %s:%d/%s()!\n", 2336 __FILE__, __LINE__, __func__); 2337 return -EFAULT; 2338 } 2339 2340 if (_ctl_verify_adapter(ioctl_header.ioc_number, 2341 &ioc, mpi_version) == -1 || !ioc) 2342 return -ENODEV; 2343 2344 /* pci_access_mutex lock acquired by ioctl path */ 2345 mutex_lock(&ioc->pci_access_mutex); 2346 2347 if (ioc->shost_recovery || ioc->pci_error_recovery || 2348 ioc->is_driver_loading || ioc->remove_host) { 2349 ret = -EAGAIN; 2350 goto out_unlock_pciaccess; 2351 } 2352 2353 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING; 2354 if (state == NON_BLOCKING) { 2355 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) { 2356 ret = -EAGAIN; 2357 goto out_unlock_pciaccess; 2358 } 2359 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) { 2360 ret = -ERESTARTSYS; 2361 goto out_unlock_pciaccess; 2362 } 2363 2364 2365 switch (cmd) { 2366 case MPT3IOCINFO: 2367 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo)) 2368 ret = _ctl_getiocinfo(ioc, arg); 2369 break; 2370 #ifdef CONFIG_COMPAT 2371 case MPT3COMMAND32: 2372 #endif 2373 case MPT3COMMAND: 2374 { 2375 struct mpt3_ioctl_command __user *uarg; 2376 struct mpt3_ioctl_command karg; 2377 2378 #ifdef CONFIG_COMPAT 2379 if (compat) { 2380 ret = _ctl_compat_mpt_command(ioc, cmd, arg); 2381 break; 2382 } 2383 #endif 2384 if (copy_from_user(&karg, arg, sizeof(karg))) { 2385 pr_err("failure at %s:%d/%s()!\n", 2386 __FILE__, __LINE__, __func__); 2387 ret = -EFAULT; 2388 break; 2389 } 2390 2391 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) { 2392 uarg = arg; 2393 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf); 2394 } 2395 break; 2396 } 2397 case MPT3EVENTQUERY: 2398 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery)) 2399 ret = _ctl_eventquery(ioc, arg); 2400 break; 2401 case MPT3EVENTENABLE: 2402 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable)) 2403 ret = _ctl_eventenable(ioc, arg); 2404 break; 2405 case MPT3EVENTREPORT: 2406 ret = _ctl_eventreport(ioc, arg); 2407 break; 2408 case MPT3HARDRESET: 2409 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset)) 2410 ret = _ctl_do_reset(ioc, arg); 2411 break; 2412 case MPT3BTDHMAPPING: 2413 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping)) 2414 ret = _ctl_btdh_mapping(ioc, arg); 2415 break; 2416 case MPT3DIAGREGISTER: 2417 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register)) 2418 ret = _ctl_diag_register(ioc, arg); 2419 break; 2420 case MPT3DIAGUNREGISTER: 2421 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister)) 2422 ret = _ctl_diag_unregister(ioc, arg); 2423 break; 2424 case MPT3DIAGQUERY: 2425 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query)) 2426 ret = _ctl_diag_query(ioc, arg); 2427 break; 2428 case MPT3DIAGRELEASE: 2429 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release)) 2430 ret = _ctl_diag_release(ioc, arg); 2431 break; 2432 case MPT3DIAGREADBUFFER: 2433 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer)) 2434 ret = _ctl_diag_read_buffer(ioc, arg); 2435 break; 2436 default: 2437 dctlprintk(ioc, pr_info(MPT3SAS_FMT 2438 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd)); 2439 break; 2440 } 2441 2442 mutex_unlock(&ioc->ctl_cmds.mutex); 2443 out_unlock_pciaccess: 2444 mutex_unlock(&ioc->pci_access_mutex); 2445 return ret; 2446 } 2447 2448 /** 2449 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked) 2450 * @file - (struct file) 2451 * @cmd - ioctl opcode 2452 * @arg - 2453 */ 2454 static long 2455 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 2456 { 2457 long ret; 2458 2459 /* pass MPI25_VERSION | MPI26_VERSION value, 2460 * to indicate that this ioctl cmd 2461 * came from mpt3ctl ioctl device. 2462 */ 2463 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, 2464 MPI25_VERSION | MPI26_VERSION); 2465 return ret; 2466 } 2467 2468 /** 2469 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked) 2470 * @file - (struct file) 2471 * @cmd - ioctl opcode 2472 * @arg - 2473 */ 2474 static long 2475 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 2476 { 2477 long ret; 2478 2479 /* pass MPI2_VERSION value, to indicate that this ioctl cmd 2480 * came from mpt2ctl ioctl device. 2481 */ 2482 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION); 2483 return ret; 2484 } 2485 #ifdef CONFIG_COMPAT 2486 /** 2487 *_ ctl_ioctl_compat - main ioctl entry point (compat) 2488 * @file - 2489 * @cmd - 2490 * @arg - 2491 * 2492 * This routine handles 32 bit applications in 64bit os. 2493 */ 2494 static long 2495 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg) 2496 { 2497 long ret; 2498 2499 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, 2500 MPI25_VERSION | MPI26_VERSION); 2501 return ret; 2502 } 2503 2504 /** 2505 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat) 2506 * @file - 2507 * @cmd - 2508 * @arg - 2509 * 2510 * This routine handles 32 bit applications in 64bit os. 2511 */ 2512 static long 2513 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg) 2514 { 2515 long ret; 2516 2517 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION); 2518 return ret; 2519 } 2520 #endif 2521 2522 /* scsi host attributes */ 2523 /** 2524 * _ctl_version_fw_show - firmware version 2525 * @cdev - pointer to embedded class device 2526 * @buf - the buffer returned 2527 * 2528 * A sysfs 'read-only' shost attribute. 2529 */ 2530 static ssize_t 2531 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr, 2532 char *buf) 2533 { 2534 struct Scsi_Host *shost = class_to_shost(cdev); 2535 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2536 2537 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", 2538 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 2539 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 2540 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 2541 ioc->facts.FWVersion.Word & 0x000000FF); 2542 } 2543 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL); 2544 2545 /** 2546 * _ctl_version_bios_show - bios version 2547 * @cdev - pointer to embedded class device 2548 * @buf - the buffer returned 2549 * 2550 * A sysfs 'read-only' shost attribute. 2551 */ 2552 static ssize_t 2553 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr, 2554 char *buf) 2555 { 2556 struct Scsi_Host *shost = class_to_shost(cdev); 2557 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2558 2559 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion); 2560 2561 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", 2562 (version & 0xFF000000) >> 24, 2563 (version & 0x00FF0000) >> 16, 2564 (version & 0x0000FF00) >> 8, 2565 version & 0x000000FF); 2566 } 2567 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL); 2568 2569 /** 2570 * _ctl_version_mpi_show - MPI (message passing interface) version 2571 * @cdev - pointer to embedded class device 2572 * @buf - the buffer returned 2573 * 2574 * A sysfs 'read-only' shost attribute. 2575 */ 2576 static ssize_t 2577 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr, 2578 char *buf) 2579 { 2580 struct Scsi_Host *shost = class_to_shost(cdev); 2581 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2582 2583 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n", 2584 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8); 2585 } 2586 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL); 2587 2588 /** 2589 * _ctl_version_product_show - product name 2590 * @cdev - pointer to embedded class device 2591 * @buf - the buffer returned 2592 * 2593 * A sysfs 'read-only' shost attribute. 2594 */ 2595 static ssize_t 2596 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr, 2597 char *buf) 2598 { 2599 struct Scsi_Host *shost = class_to_shost(cdev); 2600 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2601 2602 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName); 2603 } 2604 static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL); 2605 2606 /** 2607 * _ctl_version_nvdata_persistent_show - ndvata persistent version 2608 * @cdev - pointer to embedded class device 2609 * @buf - the buffer returned 2610 * 2611 * A sysfs 'read-only' shost attribute. 2612 */ 2613 static ssize_t 2614 _ctl_version_nvdata_persistent_show(struct device *cdev, 2615 struct device_attribute *attr, char *buf) 2616 { 2617 struct Scsi_Host *shost = class_to_shost(cdev); 2618 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2619 2620 return snprintf(buf, PAGE_SIZE, "%08xh\n", 2621 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word)); 2622 } 2623 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, 2624 _ctl_version_nvdata_persistent_show, NULL); 2625 2626 /** 2627 * _ctl_version_nvdata_default_show - nvdata default version 2628 * @cdev - pointer to embedded class device 2629 * @buf - the buffer returned 2630 * 2631 * A sysfs 'read-only' shost attribute. 2632 */ 2633 static ssize_t 2634 _ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute 2635 *attr, char *buf) 2636 { 2637 struct Scsi_Host *shost = class_to_shost(cdev); 2638 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2639 2640 return snprintf(buf, PAGE_SIZE, "%08xh\n", 2641 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word)); 2642 } 2643 static DEVICE_ATTR(version_nvdata_default, S_IRUGO, 2644 _ctl_version_nvdata_default_show, NULL); 2645 2646 /** 2647 * _ctl_board_name_show - board name 2648 * @cdev - pointer to embedded class device 2649 * @buf - the buffer returned 2650 * 2651 * A sysfs 'read-only' shost attribute. 2652 */ 2653 static ssize_t 2654 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr, 2655 char *buf) 2656 { 2657 struct Scsi_Host *shost = class_to_shost(cdev); 2658 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2659 2660 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName); 2661 } 2662 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL); 2663 2664 /** 2665 * _ctl_board_assembly_show - board assembly name 2666 * @cdev - pointer to embedded class device 2667 * @buf - the buffer returned 2668 * 2669 * A sysfs 'read-only' shost attribute. 2670 */ 2671 static ssize_t 2672 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr, 2673 char *buf) 2674 { 2675 struct Scsi_Host *shost = class_to_shost(cdev); 2676 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2677 2678 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly); 2679 } 2680 static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL); 2681 2682 /** 2683 * _ctl_board_tracer_show - board tracer number 2684 * @cdev - pointer to embedded class device 2685 * @buf - the buffer returned 2686 * 2687 * A sysfs 'read-only' shost attribute. 2688 */ 2689 static ssize_t 2690 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr, 2691 char *buf) 2692 { 2693 struct Scsi_Host *shost = class_to_shost(cdev); 2694 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2695 2696 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber); 2697 } 2698 static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL); 2699 2700 /** 2701 * _ctl_io_delay_show - io missing delay 2702 * @cdev - pointer to embedded class device 2703 * @buf - the buffer returned 2704 * 2705 * This is for firmware implemention for deboucing device 2706 * removal events. 2707 * 2708 * A sysfs 'read-only' shost attribute. 2709 */ 2710 static ssize_t 2711 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr, 2712 char *buf) 2713 { 2714 struct Scsi_Host *shost = class_to_shost(cdev); 2715 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2716 2717 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); 2718 } 2719 static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL); 2720 2721 /** 2722 * _ctl_device_delay_show - device missing delay 2723 * @cdev - pointer to embedded class device 2724 * @buf - the buffer returned 2725 * 2726 * This is for firmware implemention for deboucing device 2727 * removal events. 2728 * 2729 * A sysfs 'read-only' shost attribute. 2730 */ 2731 static ssize_t 2732 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr, 2733 char *buf) 2734 { 2735 struct Scsi_Host *shost = class_to_shost(cdev); 2736 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2737 2738 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); 2739 } 2740 static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL); 2741 2742 /** 2743 * _ctl_fw_queue_depth_show - global credits 2744 * @cdev - pointer to embedded class device 2745 * @buf - the buffer returned 2746 * 2747 * This is firmware queue depth limit 2748 * 2749 * A sysfs 'read-only' shost attribute. 2750 */ 2751 static ssize_t 2752 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr, 2753 char *buf) 2754 { 2755 struct Scsi_Host *shost = class_to_shost(cdev); 2756 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2757 2758 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit); 2759 } 2760 static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL); 2761 2762 /** 2763 * _ctl_sas_address_show - sas address 2764 * @cdev - pointer to embedded class device 2765 * @buf - the buffer returned 2766 * 2767 * This is the controller sas address 2768 * 2769 * A sysfs 'read-only' shost attribute. 2770 */ 2771 static ssize_t 2772 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr, 2773 char *buf) 2774 2775 { 2776 struct Scsi_Host *shost = class_to_shost(cdev); 2777 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2778 2779 return snprintf(buf, PAGE_SIZE, "0x%016llx\n", 2780 (unsigned long long)ioc->sas_hba.sas_address); 2781 } 2782 static DEVICE_ATTR(host_sas_address, S_IRUGO, 2783 _ctl_host_sas_address_show, NULL); 2784 2785 /** 2786 * _ctl_logging_level_show - logging level 2787 * @cdev - pointer to embedded class device 2788 * @buf - the buffer returned 2789 * 2790 * A sysfs 'read/write' shost attribute. 2791 */ 2792 static ssize_t 2793 _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr, 2794 char *buf) 2795 { 2796 struct Scsi_Host *shost = class_to_shost(cdev); 2797 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2798 2799 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level); 2800 } 2801 static ssize_t 2802 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr, 2803 const char *buf, size_t count) 2804 { 2805 struct Scsi_Host *shost = class_to_shost(cdev); 2806 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2807 int val = 0; 2808 2809 if (sscanf(buf, "%x", &val) != 1) 2810 return -EINVAL; 2811 2812 ioc->logging_level = val; 2813 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name, 2814 ioc->logging_level); 2815 return strlen(buf); 2816 } 2817 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show, 2818 _ctl_logging_level_store); 2819 2820 /** 2821 * _ctl_fwfault_debug_show - show/store fwfault_debug 2822 * @cdev - pointer to embedded class device 2823 * @buf - the buffer returned 2824 * 2825 * mpt3sas_fwfault_debug is command line option 2826 * A sysfs 'read/write' shost attribute. 2827 */ 2828 static ssize_t 2829 _ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr, 2830 char *buf) 2831 { 2832 struct Scsi_Host *shost = class_to_shost(cdev); 2833 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2834 2835 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug); 2836 } 2837 static ssize_t 2838 _ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr, 2839 const char *buf, size_t count) 2840 { 2841 struct Scsi_Host *shost = class_to_shost(cdev); 2842 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2843 int val = 0; 2844 2845 if (sscanf(buf, "%d", &val) != 1) 2846 return -EINVAL; 2847 2848 ioc->fwfault_debug = val; 2849 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name, 2850 ioc->fwfault_debug); 2851 return strlen(buf); 2852 } 2853 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR, 2854 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store); 2855 2856 /** 2857 * _ctl_ioc_reset_count_show - ioc reset count 2858 * @cdev - pointer to embedded class device 2859 * @buf - the buffer returned 2860 * 2861 * This is firmware queue depth limit 2862 * 2863 * A sysfs 'read-only' shost attribute. 2864 */ 2865 static ssize_t 2866 _ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr, 2867 char *buf) 2868 { 2869 struct Scsi_Host *shost = class_to_shost(cdev); 2870 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2871 2872 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count); 2873 } 2874 static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL); 2875 2876 /** 2877 * _ctl_ioc_reply_queue_count_show - number of reply queues 2878 * @cdev - pointer to embedded class device 2879 * @buf - the buffer returned 2880 * 2881 * This is number of reply queues 2882 * 2883 * A sysfs 'read-only' shost attribute. 2884 */ 2885 static ssize_t 2886 _ctl_ioc_reply_queue_count_show(struct device *cdev, 2887 struct device_attribute *attr, char *buf) 2888 { 2889 u8 reply_queue_count; 2890 struct Scsi_Host *shost = class_to_shost(cdev); 2891 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2892 2893 if ((ioc->facts.IOCCapabilities & 2894 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable) 2895 reply_queue_count = ioc->reply_queue_count; 2896 else 2897 reply_queue_count = 1; 2898 2899 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count); 2900 } 2901 static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show, 2902 NULL); 2903 2904 /** 2905 * _ctl_BRM_status_show - Backup Rail Monitor Status 2906 * @cdev - pointer to embedded class device 2907 * @buf - the buffer returned 2908 * 2909 * This is number of reply queues 2910 * 2911 * A sysfs 'read-only' shost attribute. 2912 */ 2913 static ssize_t 2914 _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr, 2915 char *buf) 2916 { 2917 struct Scsi_Host *shost = class_to_shost(cdev); 2918 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2919 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL; 2920 Mpi2ConfigReply_t mpi_reply; 2921 u16 backup_rail_monitor_status = 0; 2922 u16 ioc_status; 2923 int sz; 2924 ssize_t rc = 0; 2925 2926 if (!ioc->is_warpdrive) { 2927 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for" 2928 " warpdrive\n", ioc->name, __func__); 2929 goto out; 2930 } 2931 /* pci_access_mutex lock acquired by sysfs show path */ 2932 mutex_lock(&ioc->pci_access_mutex); 2933 if (ioc->pci_error_recovery || ioc->remove_host) { 2934 mutex_unlock(&ioc->pci_access_mutex); 2935 return 0; 2936 } 2937 2938 /* allocate upto GPIOVal 36 entries */ 2939 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36); 2940 io_unit_pg3 = kzalloc(sz, GFP_KERNEL); 2941 if (!io_unit_pg3) { 2942 pr_err(MPT3SAS_FMT "%s: failed allocating memory " 2943 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz); 2944 goto out; 2945 } 2946 2947 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) != 2948 0) { 2949 pr_err(MPT3SAS_FMT 2950 "%s: failed reading iounit_pg3\n", ioc->name, 2951 __func__); 2952 goto out; 2953 } 2954 2955 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; 2956 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 2957 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with " 2958 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status); 2959 goto out; 2960 } 2961 2962 if (io_unit_pg3->GPIOCount < 25) { 2963 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than " 2964 "25 entries, detected (%d) entries\n", ioc->name, __func__, 2965 io_unit_pg3->GPIOCount); 2966 goto out; 2967 } 2968 2969 /* BRM status is in bit zero of GPIOVal[24] */ 2970 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]); 2971 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1)); 2972 2973 out: 2974 kfree(io_unit_pg3); 2975 mutex_unlock(&ioc->pci_access_mutex); 2976 return rc; 2977 } 2978 static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL); 2979 2980 struct DIAG_BUFFER_START { 2981 __le32 Size; 2982 __le32 DiagVersion; 2983 u8 BufferType; 2984 u8 Reserved[3]; 2985 __le32 Reserved1; 2986 __le32 Reserved2; 2987 __le32 Reserved3; 2988 }; 2989 2990 /** 2991 * _ctl_host_trace_buffer_size_show - host buffer size (trace only) 2992 * @cdev - pointer to embedded class device 2993 * @buf - the buffer returned 2994 * 2995 * A sysfs 'read-only' shost attribute. 2996 */ 2997 static ssize_t 2998 _ctl_host_trace_buffer_size_show(struct device *cdev, 2999 struct device_attribute *attr, char *buf) 3000 { 3001 struct Scsi_Host *shost = class_to_shost(cdev); 3002 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3003 u32 size = 0; 3004 struct DIAG_BUFFER_START *request_data; 3005 3006 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) { 3007 pr_err(MPT3SAS_FMT 3008 "%s: host_trace_buffer is not registered\n", 3009 ioc->name, __func__); 3010 return 0; 3011 } 3012 3013 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3014 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) { 3015 pr_err(MPT3SAS_FMT 3016 "%s: host_trace_buffer is not registered\n", 3017 ioc->name, __func__); 3018 return 0; 3019 } 3020 3021 request_data = (struct DIAG_BUFFER_START *) 3022 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]; 3023 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 || 3024 le32_to_cpu(request_data->DiagVersion) == 0x01000000 || 3025 le32_to_cpu(request_data->DiagVersion) == 0x01010000) && 3026 le32_to_cpu(request_data->Reserved3) == 0x4742444c) 3027 size = le32_to_cpu(request_data->Size); 3028 3029 ioc->ring_buffer_sz = size; 3030 return snprintf(buf, PAGE_SIZE, "%d\n", size); 3031 } 3032 static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO, 3033 _ctl_host_trace_buffer_size_show, NULL); 3034 3035 /** 3036 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only) 3037 * @cdev - pointer to embedded class device 3038 * @buf - the buffer returned 3039 * 3040 * A sysfs 'read/write' shost attribute. 3041 * 3042 * You will only be able to read 4k bytes of ring buffer at a time. 3043 * In order to read beyond 4k bytes, you will have to write out the 3044 * offset to the same attribute, it will move the pointer. 3045 */ 3046 static ssize_t 3047 _ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr, 3048 char *buf) 3049 { 3050 struct Scsi_Host *shost = class_to_shost(cdev); 3051 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3052 void *request_data; 3053 u32 size; 3054 3055 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) { 3056 pr_err(MPT3SAS_FMT 3057 "%s: host_trace_buffer is not registered\n", 3058 ioc->name, __func__); 3059 return 0; 3060 } 3061 3062 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3063 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) { 3064 pr_err(MPT3SAS_FMT 3065 "%s: host_trace_buffer is not registered\n", 3066 ioc->name, __func__); 3067 return 0; 3068 } 3069 3070 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz) 3071 return 0; 3072 3073 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset; 3074 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3075 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset; 3076 memcpy(buf, request_data, size); 3077 return size; 3078 } 3079 3080 static ssize_t 3081 _ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr, 3082 const char *buf, size_t count) 3083 { 3084 struct Scsi_Host *shost = class_to_shost(cdev); 3085 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3086 int val = 0; 3087 3088 if (sscanf(buf, "%d", &val) != 1) 3089 return -EINVAL; 3090 3091 ioc->ring_buffer_offset = val; 3092 return strlen(buf); 3093 } 3094 static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR, 3095 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store); 3096 3097 3098 /*****************************************/ 3099 3100 /** 3101 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only) 3102 * @cdev - pointer to embedded class device 3103 * @buf - the buffer returned 3104 * 3105 * A sysfs 'read/write' shost attribute. 3106 * 3107 * This is a mechnism to post/release host_trace_buffers 3108 */ 3109 static ssize_t 3110 _ctl_host_trace_buffer_enable_show(struct device *cdev, 3111 struct device_attribute *attr, char *buf) 3112 { 3113 struct Scsi_Host *shost = class_to_shost(cdev); 3114 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3115 3116 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) || 3117 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3118 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)) 3119 return snprintf(buf, PAGE_SIZE, "off\n"); 3120 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3121 MPT3_DIAG_BUFFER_IS_RELEASED)) 3122 return snprintf(buf, PAGE_SIZE, "release\n"); 3123 else 3124 return snprintf(buf, PAGE_SIZE, "post\n"); 3125 } 3126 3127 static ssize_t 3128 _ctl_host_trace_buffer_enable_store(struct device *cdev, 3129 struct device_attribute *attr, const char *buf, size_t count) 3130 { 3131 struct Scsi_Host *shost = class_to_shost(cdev); 3132 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3133 char str[10] = ""; 3134 struct mpt3_diag_register diag_register; 3135 u8 issue_reset = 0; 3136 3137 /* don't allow post/release occurr while recovery is active */ 3138 if (ioc->shost_recovery || ioc->remove_host || 3139 ioc->pci_error_recovery || ioc->is_driver_loading) 3140 return -EBUSY; 3141 3142 if (sscanf(buf, "%9s", str) != 1) 3143 return -EINVAL; 3144 3145 if (!strcmp(str, "post")) { 3146 /* exit out if host buffers are already posted */ 3147 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) && 3148 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3149 MPT3_DIAG_BUFFER_IS_REGISTERED) && 3150 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3151 MPT3_DIAG_BUFFER_IS_RELEASED) == 0)) 3152 goto out; 3153 memset(&diag_register, 0, sizeof(struct mpt3_diag_register)); 3154 pr_info(MPT3SAS_FMT "posting host trace buffers\n", 3155 ioc->name); 3156 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE; 3157 diag_register.requested_buffer_size = (1024 * 1024); 3158 diag_register.unique_id = 0x7075900; 3159 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0; 3160 _ctl_diag_register_2(ioc, &diag_register); 3161 } else if (!strcmp(str, "release")) { 3162 /* exit out if host buffers are already released */ 3163 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) 3164 goto out; 3165 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3166 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) 3167 goto out; 3168 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & 3169 MPT3_DIAG_BUFFER_IS_RELEASED)) 3170 goto out; 3171 pr_info(MPT3SAS_FMT "releasing host trace buffer\n", 3172 ioc->name); 3173 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE, 3174 &issue_reset); 3175 } 3176 3177 out: 3178 return strlen(buf); 3179 } 3180 static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR, 3181 _ctl_host_trace_buffer_enable_show, 3182 _ctl_host_trace_buffer_enable_store); 3183 3184 /*********** diagnostic trigger suppport *********************************/ 3185 3186 /** 3187 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute 3188 * @cdev - pointer to embedded class device 3189 * @buf - the buffer returned 3190 * 3191 * A sysfs 'read/write' shost attribute. 3192 */ 3193 static ssize_t 3194 _ctl_diag_trigger_master_show(struct device *cdev, 3195 struct device_attribute *attr, char *buf) 3196 3197 { 3198 struct Scsi_Host *shost = class_to_shost(cdev); 3199 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3200 unsigned long flags; 3201 ssize_t rc; 3202 3203 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3204 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T); 3205 memcpy(buf, &ioc->diag_trigger_master, rc); 3206 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3207 return rc; 3208 } 3209 3210 /** 3211 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute 3212 * @cdev - pointer to embedded class device 3213 * @buf - the buffer returned 3214 * 3215 * A sysfs 'read/write' shost attribute. 3216 */ 3217 static ssize_t 3218 _ctl_diag_trigger_master_store(struct device *cdev, 3219 struct device_attribute *attr, const char *buf, size_t count) 3220 3221 { 3222 struct Scsi_Host *shost = class_to_shost(cdev); 3223 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3224 unsigned long flags; 3225 ssize_t rc; 3226 3227 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3228 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count); 3229 memset(&ioc->diag_trigger_master, 0, 3230 sizeof(struct SL_WH_MASTER_TRIGGER_T)); 3231 memcpy(&ioc->diag_trigger_master, buf, rc); 3232 ioc->diag_trigger_master.MasterData |= 3233 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET); 3234 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3235 return rc; 3236 } 3237 static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR, 3238 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store); 3239 3240 3241 /** 3242 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute 3243 * @cdev - pointer to embedded class device 3244 * @buf - the buffer returned 3245 * 3246 * A sysfs 'read/write' shost attribute. 3247 */ 3248 static ssize_t 3249 _ctl_diag_trigger_event_show(struct device *cdev, 3250 struct device_attribute *attr, char *buf) 3251 { 3252 struct Scsi_Host *shost = class_to_shost(cdev); 3253 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3254 unsigned long flags; 3255 ssize_t rc; 3256 3257 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3258 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T); 3259 memcpy(buf, &ioc->diag_trigger_event, rc); 3260 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3261 return rc; 3262 } 3263 3264 /** 3265 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute 3266 * @cdev - pointer to embedded class device 3267 * @buf - the buffer returned 3268 * 3269 * A sysfs 'read/write' shost attribute. 3270 */ 3271 static ssize_t 3272 _ctl_diag_trigger_event_store(struct device *cdev, 3273 struct device_attribute *attr, const char *buf, size_t count) 3274 3275 { 3276 struct Scsi_Host *shost = class_to_shost(cdev); 3277 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3278 unsigned long flags; 3279 ssize_t sz; 3280 3281 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3282 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count); 3283 memset(&ioc->diag_trigger_event, 0, 3284 sizeof(struct SL_WH_EVENT_TRIGGERS_T)); 3285 memcpy(&ioc->diag_trigger_event, buf, sz); 3286 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES) 3287 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES; 3288 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3289 return sz; 3290 } 3291 static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR, 3292 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store); 3293 3294 3295 /** 3296 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute 3297 * @cdev - pointer to embedded class device 3298 * @buf - the buffer returned 3299 * 3300 * A sysfs 'read/write' shost attribute. 3301 */ 3302 static ssize_t 3303 _ctl_diag_trigger_scsi_show(struct device *cdev, 3304 struct device_attribute *attr, char *buf) 3305 { 3306 struct Scsi_Host *shost = class_to_shost(cdev); 3307 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3308 unsigned long flags; 3309 ssize_t rc; 3310 3311 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3312 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T); 3313 memcpy(buf, &ioc->diag_trigger_scsi, rc); 3314 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3315 return rc; 3316 } 3317 3318 /** 3319 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute 3320 * @cdev - pointer to embedded class device 3321 * @buf - the buffer returned 3322 * 3323 * A sysfs 'read/write' shost attribute. 3324 */ 3325 static ssize_t 3326 _ctl_diag_trigger_scsi_store(struct device *cdev, 3327 struct device_attribute *attr, const char *buf, size_t count) 3328 { 3329 struct Scsi_Host *shost = class_to_shost(cdev); 3330 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3331 unsigned long flags; 3332 ssize_t sz; 3333 3334 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3335 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count); 3336 memset(&ioc->diag_trigger_scsi, 0, 3337 sizeof(struct SL_WH_EVENT_TRIGGERS_T)); 3338 memcpy(&ioc->diag_trigger_scsi, buf, sz); 3339 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES) 3340 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES; 3341 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3342 return sz; 3343 } 3344 static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR, 3345 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store); 3346 3347 3348 /** 3349 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute 3350 * @cdev - pointer to embedded class device 3351 * @buf - the buffer returned 3352 * 3353 * A sysfs 'read/write' shost attribute. 3354 */ 3355 static ssize_t 3356 _ctl_diag_trigger_mpi_show(struct device *cdev, 3357 struct device_attribute *attr, char *buf) 3358 { 3359 struct Scsi_Host *shost = class_to_shost(cdev); 3360 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3361 unsigned long flags; 3362 ssize_t rc; 3363 3364 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3365 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T); 3366 memcpy(buf, &ioc->diag_trigger_mpi, rc); 3367 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3368 return rc; 3369 } 3370 3371 /** 3372 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute 3373 * @cdev - pointer to embedded class device 3374 * @buf - the buffer returned 3375 * 3376 * A sysfs 'read/write' shost attribute. 3377 */ 3378 static ssize_t 3379 _ctl_diag_trigger_mpi_store(struct device *cdev, 3380 struct device_attribute *attr, const char *buf, size_t count) 3381 { 3382 struct Scsi_Host *shost = class_to_shost(cdev); 3383 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 3384 unsigned long flags; 3385 ssize_t sz; 3386 3387 spin_lock_irqsave(&ioc->diag_trigger_lock, flags); 3388 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count); 3389 memset(&ioc->diag_trigger_mpi, 0, 3390 sizeof(ioc->diag_trigger_mpi)); 3391 memcpy(&ioc->diag_trigger_mpi, buf, sz); 3392 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES) 3393 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES; 3394 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags); 3395 return sz; 3396 } 3397 3398 static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR, 3399 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store); 3400 3401 /*********** diagnostic trigger suppport *** END ****************************/ 3402 3403 /*****************************************/ 3404 3405 struct device_attribute *mpt3sas_host_attrs[] = { 3406 &dev_attr_version_fw, 3407 &dev_attr_version_bios, 3408 &dev_attr_version_mpi, 3409 &dev_attr_version_product, 3410 &dev_attr_version_nvdata_persistent, 3411 &dev_attr_version_nvdata_default, 3412 &dev_attr_board_name, 3413 &dev_attr_board_assembly, 3414 &dev_attr_board_tracer, 3415 &dev_attr_io_delay, 3416 &dev_attr_device_delay, 3417 &dev_attr_logging_level, 3418 &dev_attr_fwfault_debug, 3419 &dev_attr_fw_queue_depth, 3420 &dev_attr_host_sas_address, 3421 &dev_attr_ioc_reset_count, 3422 &dev_attr_host_trace_buffer_size, 3423 &dev_attr_host_trace_buffer, 3424 &dev_attr_host_trace_buffer_enable, 3425 &dev_attr_reply_queue_count, 3426 &dev_attr_diag_trigger_master, 3427 &dev_attr_diag_trigger_event, 3428 &dev_attr_diag_trigger_scsi, 3429 &dev_attr_diag_trigger_mpi, 3430 &dev_attr_BRM_status, 3431 NULL, 3432 }; 3433 3434 /* device attributes */ 3435 3436 /** 3437 * _ctl_device_sas_address_show - sas address 3438 * @cdev - pointer to embedded class device 3439 * @buf - the buffer returned 3440 * 3441 * This is the sas address for the target 3442 * 3443 * A sysfs 'read-only' shost attribute. 3444 */ 3445 static ssize_t 3446 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr, 3447 char *buf) 3448 { 3449 struct scsi_device *sdev = to_scsi_device(dev); 3450 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; 3451 3452 return snprintf(buf, PAGE_SIZE, "0x%016llx\n", 3453 (unsigned long long)sas_device_priv_data->sas_target->sas_address); 3454 } 3455 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL); 3456 3457 /** 3458 * _ctl_device_handle_show - device handle 3459 * @cdev - pointer to embedded class device 3460 * @buf - the buffer returned 3461 * 3462 * This is the firmware assigned device handle 3463 * 3464 * A sysfs 'read-only' shost attribute. 3465 */ 3466 static ssize_t 3467 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr, 3468 char *buf) 3469 { 3470 struct scsi_device *sdev = to_scsi_device(dev); 3471 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; 3472 3473 return snprintf(buf, PAGE_SIZE, "0x%04x\n", 3474 sas_device_priv_data->sas_target->handle); 3475 } 3476 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL); 3477 3478 /** 3479 * _ctl_device_ncq_io_prio_show - send prioritized io commands to device 3480 * @dev - pointer to embedded device 3481 * @buf - the buffer returned 3482 * 3483 * A sysfs 'read/write' sdev attribute, only works with SATA 3484 */ 3485 static ssize_t 3486 _ctl_device_ncq_prio_enable_show(struct device *dev, 3487 struct device_attribute *attr, char *buf) 3488 { 3489 struct scsi_device *sdev = to_scsi_device(dev); 3490 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; 3491 3492 return snprintf(buf, PAGE_SIZE, "%d\n", 3493 sas_device_priv_data->ncq_prio_enable); 3494 } 3495 3496 static ssize_t 3497 _ctl_device_ncq_prio_enable_store(struct device *dev, 3498 struct device_attribute *attr, 3499 const char *buf, size_t count) 3500 { 3501 struct scsi_device *sdev = to_scsi_device(dev); 3502 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; 3503 bool ncq_prio_enable = 0; 3504 3505 if (kstrtobool(buf, &ncq_prio_enable)) 3506 return -EINVAL; 3507 3508 if (!scsih_ncq_prio_supp(sdev)) 3509 return -EINVAL; 3510 3511 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable; 3512 return strlen(buf); 3513 } 3514 static DEVICE_ATTR(sas_ncq_prio_enable, S_IRUGO | S_IWUSR, 3515 _ctl_device_ncq_prio_enable_show, 3516 _ctl_device_ncq_prio_enable_store); 3517 3518 struct device_attribute *mpt3sas_dev_attrs[] = { 3519 &dev_attr_sas_address, 3520 &dev_attr_sas_device_handle, 3521 &dev_attr_sas_ncq_prio_enable, 3522 NULL, 3523 }; 3524 3525 /* file operations table for mpt3ctl device */ 3526 static const struct file_operations ctl_fops = { 3527 .owner = THIS_MODULE, 3528 .unlocked_ioctl = _ctl_ioctl, 3529 .poll = _ctl_poll, 3530 .fasync = _ctl_fasync, 3531 #ifdef CONFIG_COMPAT 3532 .compat_ioctl = _ctl_ioctl_compat, 3533 #endif 3534 }; 3535 3536 /* file operations table for mpt2ctl device */ 3537 static const struct file_operations ctl_gen2_fops = { 3538 .owner = THIS_MODULE, 3539 .unlocked_ioctl = _ctl_mpt2_ioctl, 3540 .poll = _ctl_poll, 3541 .fasync = _ctl_fasync, 3542 #ifdef CONFIG_COMPAT 3543 .compat_ioctl = _ctl_mpt2_ioctl_compat, 3544 #endif 3545 }; 3546 3547 static struct miscdevice ctl_dev = { 3548 .minor = MPT3SAS_MINOR, 3549 .name = MPT3SAS_DEV_NAME, 3550 .fops = &ctl_fops, 3551 }; 3552 3553 static struct miscdevice gen2_ctl_dev = { 3554 .minor = MPT2SAS_MINOR, 3555 .name = MPT2SAS_DEV_NAME, 3556 .fops = &ctl_gen2_fops, 3557 }; 3558 3559 /** 3560 * mpt3sas_ctl_init - main entry point for ctl. 3561 * 3562 */ 3563 void 3564 mpt3sas_ctl_init(ushort hbas_to_enumerate) 3565 { 3566 async_queue = NULL; 3567 3568 /* Don't register mpt3ctl ioctl device if 3569 * hbas_to_enumarate is one. 3570 */ 3571 if (hbas_to_enumerate != 1) 3572 if (misc_register(&ctl_dev) < 0) 3573 pr_err("%s can't register misc device [minor=%d]\n", 3574 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR); 3575 3576 /* Don't register mpt3ctl ioctl device if 3577 * hbas_to_enumarate is two. 3578 */ 3579 if (hbas_to_enumerate != 2) 3580 if (misc_register(&gen2_ctl_dev) < 0) 3581 pr_err("%s can't register misc device [minor=%d]\n", 3582 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR); 3583 3584 init_waitqueue_head(&ctl_poll_wait); 3585 } 3586 3587 /** 3588 * mpt3sas_ctl_exit - exit point for ctl 3589 * 3590 */ 3591 void 3592 mpt3sas_ctl_exit(ushort hbas_to_enumerate) 3593 { 3594 struct MPT3SAS_ADAPTER *ioc; 3595 int i; 3596 3597 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) { 3598 3599 /* free memory associated to diag buffers */ 3600 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { 3601 if (!ioc->diag_buffer[i]) 3602 continue; 3603 if (!(ioc->diag_buffer_status[i] & 3604 MPT3_DIAG_BUFFER_IS_REGISTERED)) 3605 continue; 3606 if ((ioc->diag_buffer_status[i] & 3607 MPT3_DIAG_BUFFER_IS_RELEASED)) 3608 continue; 3609 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i], 3610 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]); 3611 ioc->diag_buffer[i] = NULL; 3612 ioc->diag_buffer_status[i] = 0; 3613 } 3614 3615 kfree(ioc->event_log); 3616 } 3617 if (hbas_to_enumerate != 1) 3618 misc_deregister(&ctl_dev); 3619 if (hbas_to_enumerate != 2) 3620 misc_deregister(&gen2_ctl_dev); 3621 } 3622