1 /* 2 * SAS Transport Layer for MPT (Message Passing Technology) based controllers 3 * 4 * This code is based on drivers/scsi/mpt3sas/mpt3sas_transport.c 5 * Copyright (C) 2012-2014 LSI Corporation 6 * Copyright (C) 2013-2014 Avago Technologies 7 * (mailto: MPT-FusionLinux.pdl@avagotech.com) 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 2 12 * of the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * NO WARRANTY 20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 21 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 24 * solely responsible for determining the appropriateness of using and 25 * distributing the Program and assumes all risks associated with its 26 * exercise of rights under this Agreement, including but not limited to 27 * the risks and costs of program errors, damage to or loss of data, 28 * programs or equipment, and unavailability or interruption of operations. 29 30 * DISCLAIMER OF LIABILITY 31 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 32 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 34 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 35 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 36 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 37 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 38 39 * You should have received a copy of the GNU General Public License 40 * along with this program; if not, write to the Free Software 41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 42 * USA. 43 */ 44 45 #include <linux/module.h> 46 #include <linux/kernel.h> 47 #include <linux/init.h> 48 #include <linux/errno.h> 49 #include <linux/sched.h> 50 #include <linux/workqueue.h> 51 #include <linux/delay.h> 52 #include <linux/pci.h> 53 54 #include <scsi/scsi.h> 55 #include <scsi/scsi_cmnd.h> 56 #include <scsi/scsi_device.h> 57 #include <scsi/scsi_host.h> 58 #include <scsi/scsi_transport_sas.h> 59 #include <scsi/scsi_dbg.h> 60 61 #include "mpt3sas_base.h" 62 63 /** 64 * _transport_sas_node_find_by_sas_address - sas node search 65 * @ioc: per adapter object 66 * @sas_address: sas address of expander or sas host 67 * Context: Calling function should acquire ioc->sas_node_lock. 68 * 69 * Search for either hba phys or expander device based on handle, then returns 70 * the sas_node object. 71 */ 72 static struct _sas_node * 73 _transport_sas_node_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, 74 u64 sas_address) 75 { 76 if (ioc->sas_hba.sas_address == sas_address) 77 return &ioc->sas_hba; 78 else 79 return mpt3sas_scsih_expander_find_by_sas_address(ioc, 80 sas_address); 81 } 82 83 /** 84 * _transport_convert_phy_link_rate - 85 * @link_rate: link rate returned from mpt firmware 86 * 87 * Convert link_rate from mpi fusion into sas_transport form. 88 */ 89 static enum sas_linkrate 90 _transport_convert_phy_link_rate(u8 link_rate) 91 { 92 enum sas_linkrate rc; 93 94 switch (link_rate) { 95 case MPI2_SAS_NEG_LINK_RATE_1_5: 96 rc = SAS_LINK_RATE_1_5_GBPS; 97 break; 98 case MPI2_SAS_NEG_LINK_RATE_3_0: 99 rc = SAS_LINK_RATE_3_0_GBPS; 100 break; 101 case MPI2_SAS_NEG_LINK_RATE_6_0: 102 rc = SAS_LINK_RATE_6_0_GBPS; 103 break; 104 case MPI25_SAS_NEG_LINK_RATE_12_0: 105 rc = SAS_LINK_RATE_12_0_GBPS; 106 break; 107 case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED: 108 rc = SAS_PHY_DISABLED; 109 break; 110 case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED: 111 rc = SAS_LINK_RATE_FAILED; 112 break; 113 case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR: 114 rc = SAS_SATA_PORT_SELECTOR; 115 break; 116 case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS: 117 rc = SAS_PHY_RESET_IN_PROGRESS; 118 break; 119 120 default: 121 case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE: 122 case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE: 123 rc = SAS_LINK_RATE_UNKNOWN; 124 break; 125 } 126 return rc; 127 } 128 129 /** 130 * _transport_set_identify - set identify for phys and end devices 131 * @ioc: per adapter object 132 * @handle: device handle 133 * @identify: sas identify info 134 * 135 * Populates sas identify info. 136 * 137 * Returns 0 for success, non-zero for failure. 138 */ 139 static int 140 _transport_set_identify(struct MPT3SAS_ADAPTER *ioc, u16 handle, 141 struct sas_identify *identify) 142 { 143 Mpi2SasDevicePage0_t sas_device_pg0; 144 Mpi2ConfigReply_t mpi_reply; 145 u32 device_info; 146 u32 ioc_status; 147 148 if (ioc->shost_recovery || ioc->pci_error_recovery) { 149 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 150 __func__, ioc->name); 151 return -EFAULT; 152 } 153 154 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 155 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 156 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 157 ioc->name, __FILE__, __LINE__, __func__); 158 return -ENXIO; 159 } 160 161 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 162 MPI2_IOCSTATUS_MASK; 163 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 164 pr_err(MPT3SAS_FMT 165 "handle(0x%04x), ioc_status(0x%04x)\nfailure at %s:%d/%s()!\n", 166 ioc->name, handle, ioc_status, 167 __FILE__, __LINE__, __func__); 168 return -EIO; 169 } 170 171 memset(identify, 0, sizeof(struct sas_identify)); 172 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 173 174 /* sas_address */ 175 identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 176 177 /* phy number of the parent device this device is linked to */ 178 identify->phy_identifier = sas_device_pg0.PhyNum; 179 180 /* device_type */ 181 switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) { 182 case MPI2_SAS_DEVICE_INFO_NO_DEVICE: 183 identify->device_type = SAS_PHY_UNUSED; 184 break; 185 case MPI2_SAS_DEVICE_INFO_END_DEVICE: 186 identify->device_type = SAS_END_DEVICE; 187 break; 188 case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER: 189 identify->device_type = SAS_EDGE_EXPANDER_DEVICE; 190 break; 191 case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER: 192 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE; 193 break; 194 } 195 196 /* initiator_port_protocols */ 197 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR) 198 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP; 199 if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR) 200 identify->initiator_port_protocols |= SAS_PROTOCOL_STP; 201 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR) 202 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP; 203 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST) 204 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA; 205 206 /* target_port_protocols */ 207 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) 208 identify->target_port_protocols |= SAS_PROTOCOL_SSP; 209 if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) 210 identify->target_port_protocols |= SAS_PROTOCOL_STP; 211 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) 212 identify->target_port_protocols |= SAS_PROTOCOL_SMP; 213 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) 214 identify->target_port_protocols |= SAS_PROTOCOL_SATA; 215 216 return 0; 217 } 218 219 /** 220 * mpt3sas_transport_done - internal transport layer callback handler. 221 * @ioc: per adapter object 222 * @smid: system request message index 223 * @msix_index: MSIX table index supplied by the OS 224 * @reply: reply message frame(lower 32bit addr) 225 * 226 * Callback handler when sending internal generated transport cmds. 227 * The callback index passed is `ioc->transport_cb_idx` 228 * 229 * Return 1 meaning mf should be freed from _base_interrupt 230 * 0 means the mf is freed from this function. 231 */ 232 u8 233 mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 234 u32 reply) 235 { 236 MPI2DefaultReply_t *mpi_reply; 237 238 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 239 if (ioc->transport_cmds.status == MPT3_CMD_NOT_USED) 240 return 1; 241 if (ioc->transport_cmds.smid != smid) 242 return 1; 243 ioc->transport_cmds.status |= MPT3_CMD_COMPLETE; 244 if (mpi_reply) { 245 memcpy(ioc->transport_cmds.reply, mpi_reply, 246 mpi_reply->MsgLength*4); 247 ioc->transport_cmds.status |= MPT3_CMD_REPLY_VALID; 248 } 249 ioc->transport_cmds.status &= ~MPT3_CMD_PENDING; 250 complete(&ioc->transport_cmds.done); 251 return 1; 252 } 253 254 /* report manufacture request structure */ 255 struct rep_manu_request { 256 u8 smp_frame_type; 257 u8 function; 258 u8 reserved; 259 u8 request_length; 260 }; 261 262 /* report manufacture reply structure */ 263 struct rep_manu_reply { 264 u8 smp_frame_type; /* 0x41 */ 265 u8 function; /* 0x01 */ 266 u8 function_result; 267 u8 response_length; 268 u16 expander_change_count; 269 u8 reserved0[2]; 270 u8 sas_format; 271 u8 reserved2[3]; 272 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN]; 273 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN]; 274 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN]; 275 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN]; 276 u16 component_id; 277 u8 component_revision_id; 278 u8 reserved3; 279 u8 vendor_specific[8]; 280 }; 281 282 /** 283 * transport_expander_report_manufacture - obtain SMP report_manufacture 284 * @ioc: per adapter object 285 * @sas_address: expander sas address 286 * @edev: the sas_expander_device object 287 * 288 * Fills in the sas_expander_device object when SMP port is created. 289 * 290 * Returns 0 for success, non-zero for failure. 291 */ 292 static int 293 _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, 294 u64 sas_address, struct sas_expander_device *edev) 295 { 296 Mpi2SmpPassthroughRequest_t *mpi_request; 297 Mpi2SmpPassthroughReply_t *mpi_reply; 298 struct rep_manu_reply *manufacture_reply; 299 struct rep_manu_request *manufacture_request; 300 int rc; 301 u16 smid; 302 u32 ioc_state; 303 unsigned long timeleft; 304 void *psge; 305 u8 issue_reset = 0; 306 void *data_out = NULL; 307 dma_addr_t data_out_dma; 308 dma_addr_t data_in_dma; 309 size_t data_in_sz; 310 size_t data_out_sz; 311 u16 wait_state_count; 312 313 if (ioc->shost_recovery || ioc->pci_error_recovery) { 314 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 315 __func__, ioc->name); 316 return -EFAULT; 317 } 318 319 mutex_lock(&ioc->transport_cmds.mutex); 320 321 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 322 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", 323 ioc->name, __func__); 324 rc = -EAGAIN; 325 goto out; 326 } 327 ioc->transport_cmds.status = MPT3_CMD_PENDING; 328 329 wait_state_count = 0; 330 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 331 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 332 if (wait_state_count++ == 10) { 333 pr_err(MPT3SAS_FMT 334 "%s: failed due to ioc not operational\n", 335 ioc->name, __func__); 336 rc = -EFAULT; 337 goto out; 338 } 339 ssleep(1); 340 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 341 pr_info(MPT3SAS_FMT 342 "%s: waiting for operational state(count=%d)\n", 343 ioc->name, __func__, wait_state_count); 344 } 345 if (wait_state_count) 346 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 347 ioc->name, __func__); 348 349 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 350 if (!smid) { 351 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 352 ioc->name, __func__); 353 rc = -EAGAIN; 354 goto out; 355 } 356 357 rc = 0; 358 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 359 ioc->transport_cmds.smid = smid; 360 361 data_out_sz = sizeof(struct rep_manu_request); 362 data_in_sz = sizeof(struct rep_manu_reply); 363 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz + data_in_sz, 364 &data_out_dma); 365 366 if (!data_out) { 367 pr_err("failure at %s:%d/%s()!\n", __FILE__, 368 __LINE__, __func__); 369 rc = -ENOMEM; 370 mpt3sas_base_free_smid(ioc, smid); 371 goto out; 372 } 373 374 data_in_dma = data_out_dma + sizeof(struct rep_manu_request); 375 376 manufacture_request = data_out; 377 manufacture_request->smp_frame_type = 0x40; 378 manufacture_request->function = 1; 379 manufacture_request->reserved = 0; 380 manufacture_request->request_length = 0; 381 382 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 383 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 384 mpi_request->PhysicalPort = 0xFF; 385 mpi_request->SASAddress = cpu_to_le64(sas_address); 386 mpi_request->RequestDataLength = cpu_to_le16(data_out_sz); 387 psge = &mpi_request->SGL; 388 389 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma, 390 data_in_sz); 391 392 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 393 "report_manufacture - send to sas_addr(0x%016llx)\n", 394 ioc->name, (unsigned long long)sas_address)); 395 init_completion(&ioc->transport_cmds.done); 396 mpt3sas_base_put_smid_default(ioc, smid); 397 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 398 10*HZ); 399 400 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 401 pr_err(MPT3SAS_FMT "%s: timeout\n", 402 ioc->name, __func__); 403 _debug_dump_mf(mpi_request, 404 sizeof(Mpi2SmpPassthroughRequest_t)/4); 405 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 406 issue_reset = 1; 407 goto issue_host_reset; 408 } 409 410 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 411 "report_manufacture - complete\n", ioc->name)); 412 413 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 414 u8 *tmp; 415 416 mpi_reply = ioc->transport_cmds.reply; 417 418 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 419 "report_manufacture - reply data transfer size(%d)\n", 420 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength))); 421 422 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 423 sizeof(struct rep_manu_reply)) 424 goto out; 425 426 manufacture_reply = data_out + sizeof(struct rep_manu_request); 427 strncpy(edev->vendor_id, manufacture_reply->vendor_id, 428 SAS_EXPANDER_VENDOR_ID_LEN); 429 strncpy(edev->product_id, manufacture_reply->product_id, 430 SAS_EXPANDER_PRODUCT_ID_LEN); 431 strncpy(edev->product_rev, manufacture_reply->product_rev, 432 SAS_EXPANDER_PRODUCT_REV_LEN); 433 edev->level = manufacture_reply->sas_format & 1; 434 if (edev->level) { 435 strncpy(edev->component_vendor_id, 436 manufacture_reply->component_vendor_id, 437 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN); 438 tmp = (u8 *)&manufacture_reply->component_id; 439 edev->component_id = tmp[0] << 8 | tmp[1]; 440 edev->component_revision_id = 441 manufacture_reply->component_revision_id; 442 } 443 } else 444 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 445 "report_manufacture - no reply\n", ioc->name)); 446 447 issue_host_reset: 448 if (issue_reset) 449 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 450 FORCE_BIG_HAMMER); 451 out: 452 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 453 if (data_out) 454 pci_free_consistent(ioc->pdev, data_out_sz + data_in_sz, 455 data_out, data_out_dma); 456 457 mutex_unlock(&ioc->transport_cmds.mutex); 458 return rc; 459 } 460 461 462 /** 463 * _transport_delete_port - helper function to removing a port 464 * @ioc: per adapter object 465 * @mpt3sas_port: mpt3sas per port object 466 * 467 * Returns nothing. 468 */ 469 static void 470 _transport_delete_port(struct MPT3SAS_ADAPTER *ioc, 471 struct _sas_port *mpt3sas_port) 472 { 473 u64 sas_address = mpt3sas_port->remote_identify.sas_address; 474 enum sas_device_type device_type = 475 mpt3sas_port->remote_identify.device_type; 476 477 dev_printk(KERN_INFO, &mpt3sas_port->port->dev, 478 "remove: sas_addr(0x%016llx)\n", 479 (unsigned long long) sas_address); 480 481 ioc->logging_level |= MPT_DEBUG_TRANSPORT; 482 if (device_type == SAS_END_DEVICE) 483 mpt3sas_device_remove_by_sas_address(ioc, sas_address); 484 else if (device_type == SAS_EDGE_EXPANDER_DEVICE || 485 device_type == SAS_FANOUT_EXPANDER_DEVICE) 486 mpt3sas_expander_remove(ioc, sas_address); 487 ioc->logging_level &= ~MPT_DEBUG_TRANSPORT; 488 } 489 490 /** 491 * _transport_delete_phy - helper function to removing single phy from port 492 * @ioc: per adapter object 493 * @mpt3sas_port: mpt3sas per port object 494 * @mpt3sas_phy: mpt3sas per phy object 495 * 496 * Returns nothing. 497 */ 498 static void 499 _transport_delete_phy(struct MPT3SAS_ADAPTER *ioc, 500 struct _sas_port *mpt3sas_port, struct _sas_phy *mpt3sas_phy) 501 { 502 u64 sas_address = mpt3sas_port->remote_identify.sas_address; 503 504 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 505 "remove: sas_addr(0x%016llx), phy(%d)\n", 506 (unsigned long long) sas_address, mpt3sas_phy->phy_id); 507 508 list_del(&mpt3sas_phy->port_siblings); 509 mpt3sas_port->num_phys--; 510 sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy); 511 mpt3sas_phy->phy_belongs_to_port = 0; 512 } 513 514 /** 515 * _transport_add_phy - helper function to adding single phy to port 516 * @ioc: per adapter object 517 * @mpt3sas_port: mpt3sas per port object 518 * @mpt3sas_phy: mpt3sas per phy object 519 * 520 * Returns nothing. 521 */ 522 static void 523 _transport_add_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port, 524 struct _sas_phy *mpt3sas_phy) 525 { 526 u64 sas_address = mpt3sas_port->remote_identify.sas_address; 527 528 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 529 "add: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long) 530 sas_address, mpt3sas_phy->phy_id); 531 532 list_add_tail(&mpt3sas_phy->port_siblings, &mpt3sas_port->phy_list); 533 mpt3sas_port->num_phys++; 534 sas_port_add_phy(mpt3sas_port->port, mpt3sas_phy->phy); 535 mpt3sas_phy->phy_belongs_to_port = 1; 536 } 537 538 /** 539 * _transport_add_phy_to_an_existing_port - adding new phy to existing port 540 * @ioc: per adapter object 541 * @sas_node: sas node object (either expander or sas host) 542 * @mpt3sas_phy: mpt3sas per phy object 543 * @sas_address: sas address of device/expander were phy needs to be added to 544 * 545 * Returns nothing. 546 */ 547 static void 548 _transport_add_phy_to_an_existing_port(struct MPT3SAS_ADAPTER *ioc, 549 struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy, 550 u64 sas_address) 551 { 552 struct _sas_port *mpt3sas_port; 553 struct _sas_phy *phy_srch; 554 555 if (mpt3sas_phy->phy_belongs_to_port == 1) 556 return; 557 558 list_for_each_entry(mpt3sas_port, &sas_node->sas_port_list, 559 port_list) { 560 if (mpt3sas_port->remote_identify.sas_address != 561 sas_address) 562 continue; 563 list_for_each_entry(phy_srch, &mpt3sas_port->phy_list, 564 port_siblings) { 565 if (phy_srch == mpt3sas_phy) 566 return; 567 } 568 _transport_add_phy(ioc, mpt3sas_port, mpt3sas_phy); 569 return; 570 } 571 572 } 573 574 /** 575 * _transport_del_phy_from_an_existing_port - delete phy from existing port 576 * @ioc: per adapter object 577 * @sas_node: sas node object (either expander or sas host) 578 * @mpt3sas_phy: mpt3sas per phy object 579 * 580 * Returns nothing. 581 */ 582 static void 583 _transport_del_phy_from_an_existing_port(struct MPT3SAS_ADAPTER *ioc, 584 struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy) 585 { 586 struct _sas_port *mpt3sas_port, *next; 587 struct _sas_phy *phy_srch; 588 589 if (mpt3sas_phy->phy_belongs_to_port == 0) 590 return; 591 592 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, 593 port_list) { 594 list_for_each_entry(phy_srch, &mpt3sas_port->phy_list, 595 port_siblings) { 596 if (phy_srch != mpt3sas_phy) 597 continue; 598 599 if (mpt3sas_port->num_phys == 1) 600 _transport_delete_port(ioc, mpt3sas_port); 601 else 602 _transport_delete_phy(ioc, mpt3sas_port, 603 mpt3sas_phy); 604 return; 605 } 606 } 607 } 608 609 /** 610 * _transport_sanity_check - sanity check when adding a new port 611 * @ioc: per adapter object 612 * @sas_node: sas node object (either expander or sas host) 613 * @sas_address: sas address of device being added 614 * 615 * See the explanation above from _transport_delete_duplicate_port 616 */ 617 static void 618 _transport_sanity_check(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node, 619 u64 sas_address) 620 { 621 int i; 622 623 for (i = 0; i < sas_node->num_phys; i++) { 624 if (sas_node->phy[i].remote_identify.sas_address != sas_address) 625 continue; 626 if (sas_node->phy[i].phy_belongs_to_port == 1) 627 _transport_del_phy_from_an_existing_port(ioc, sas_node, 628 &sas_node->phy[i]); 629 } 630 } 631 632 /** 633 * mpt3sas_transport_port_add - insert port to the list 634 * @ioc: per adapter object 635 * @handle: handle of attached device 636 * @sas_address: sas address of parent expander or sas host 637 * Context: This function will acquire ioc->sas_node_lock. 638 * 639 * Adding new port object to the sas_node->sas_port_list. 640 * 641 * Returns mpt3sas_port. 642 */ 643 struct _sas_port * 644 mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle, 645 u64 sas_address) 646 { 647 struct _sas_phy *mpt3sas_phy, *next; 648 struct _sas_port *mpt3sas_port; 649 unsigned long flags; 650 struct _sas_node *sas_node; 651 struct sas_rphy *rphy; 652 struct _sas_device *sas_device = NULL; 653 int i; 654 struct sas_port *port; 655 656 mpt3sas_port = kzalloc(sizeof(struct _sas_port), 657 GFP_KERNEL); 658 if (!mpt3sas_port) { 659 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 660 ioc->name, __FILE__, __LINE__, __func__); 661 return NULL; 662 } 663 664 INIT_LIST_HEAD(&mpt3sas_port->port_list); 665 INIT_LIST_HEAD(&mpt3sas_port->phy_list); 666 spin_lock_irqsave(&ioc->sas_node_lock, flags); 667 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address); 668 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 669 670 if (!sas_node) { 671 pr_err(MPT3SAS_FMT 672 "%s: Could not find parent sas_address(0x%016llx)!\n", 673 ioc->name, __func__, (unsigned long long)sas_address); 674 goto out_fail; 675 } 676 677 if ((_transport_set_identify(ioc, handle, 678 &mpt3sas_port->remote_identify))) { 679 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 680 ioc->name, __FILE__, __LINE__, __func__); 681 goto out_fail; 682 } 683 684 if (mpt3sas_port->remote_identify.device_type == SAS_PHY_UNUSED) { 685 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 686 ioc->name, __FILE__, __LINE__, __func__); 687 goto out_fail; 688 } 689 690 _transport_sanity_check(ioc, sas_node, 691 mpt3sas_port->remote_identify.sas_address); 692 693 for (i = 0; i < sas_node->num_phys; i++) { 694 if (sas_node->phy[i].remote_identify.sas_address != 695 mpt3sas_port->remote_identify.sas_address) 696 continue; 697 list_add_tail(&sas_node->phy[i].port_siblings, 698 &mpt3sas_port->phy_list); 699 mpt3sas_port->num_phys++; 700 } 701 702 if (!mpt3sas_port->num_phys) { 703 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 704 ioc->name, __FILE__, __LINE__, __func__); 705 goto out_fail; 706 } 707 708 port = sas_port_alloc_num(sas_node->parent_dev); 709 if ((sas_port_add(port))) { 710 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 711 ioc->name, __FILE__, __LINE__, __func__); 712 goto out_fail; 713 } 714 715 list_for_each_entry(mpt3sas_phy, &mpt3sas_port->phy_list, 716 port_siblings) { 717 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 718 dev_printk(KERN_INFO, &port->dev, 719 "add: handle(0x%04x), sas_addr(0x%016llx), phy(%d)\n", 720 handle, (unsigned long long) 721 mpt3sas_port->remote_identify.sas_address, 722 mpt3sas_phy->phy_id); 723 sas_port_add_phy(port, mpt3sas_phy->phy); 724 mpt3sas_phy->phy_belongs_to_port = 1; 725 } 726 727 mpt3sas_port->port = port; 728 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) 729 rphy = sas_end_device_alloc(port); 730 else 731 rphy = sas_expander_alloc(port, 732 mpt3sas_port->remote_identify.device_type); 733 734 rphy->identify = mpt3sas_port->remote_identify; 735 736 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { 737 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 738 mpt3sas_port->remote_identify.sas_address); 739 if (!sas_device) { 740 dfailprintk(ioc, printk(MPT3SAS_FMT 741 "failure at %s:%d/%s()!\n", 742 ioc->name, __FILE__, __LINE__, __func__)); 743 goto out_fail; 744 } 745 sas_device->pend_sas_rphy_add = 1; 746 } 747 748 if ((sas_rphy_add(rphy))) { 749 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 750 ioc->name, __FILE__, __LINE__, __func__); 751 } 752 753 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) 754 sas_device->pend_sas_rphy_add = 0; 755 756 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 757 dev_printk(KERN_INFO, &rphy->dev, 758 "add: handle(0x%04x), sas_addr(0x%016llx)\n", 759 handle, (unsigned long long) 760 mpt3sas_port->remote_identify.sas_address); 761 mpt3sas_port->rphy = rphy; 762 spin_lock_irqsave(&ioc->sas_node_lock, flags); 763 list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list); 764 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 765 766 /* fill in report manufacture */ 767 if (mpt3sas_port->remote_identify.device_type == 768 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || 769 mpt3sas_port->remote_identify.device_type == 770 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) 771 _transport_expander_report_manufacture(ioc, 772 mpt3sas_port->remote_identify.sas_address, 773 rphy_to_expander_device(rphy)); 774 return mpt3sas_port; 775 776 out_fail: 777 list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list, 778 port_siblings) 779 list_del(&mpt3sas_phy->port_siblings); 780 kfree(mpt3sas_port); 781 return NULL; 782 } 783 784 /** 785 * mpt3sas_transport_port_remove - remove port from the list 786 * @ioc: per adapter object 787 * @sas_address: sas address of attached device 788 * @sas_address_parent: sas address of parent expander or sas host 789 * Context: This function will acquire ioc->sas_node_lock. 790 * 791 * Removing object and freeing associated memory from the 792 * ioc->sas_port_list. 793 * 794 * Return nothing. 795 */ 796 void 797 mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 798 u64 sas_address_parent) 799 { 800 int i; 801 unsigned long flags; 802 struct _sas_port *mpt3sas_port, *next; 803 struct _sas_node *sas_node; 804 u8 found = 0; 805 struct _sas_phy *mpt3sas_phy, *next_phy; 806 807 spin_lock_irqsave(&ioc->sas_node_lock, flags); 808 sas_node = _transport_sas_node_find_by_sas_address(ioc, 809 sas_address_parent); 810 if (!sas_node) { 811 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 812 return; 813 } 814 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, 815 port_list) { 816 if (mpt3sas_port->remote_identify.sas_address != sas_address) 817 continue; 818 found = 1; 819 list_del(&mpt3sas_port->port_list); 820 goto out; 821 } 822 out: 823 if (!found) { 824 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 825 return; 826 } 827 828 for (i = 0; i < sas_node->num_phys; i++) { 829 if (sas_node->phy[i].remote_identify.sas_address == sas_address) 830 memset(&sas_node->phy[i].remote_identify, 0 , 831 sizeof(struct sas_identify)); 832 } 833 834 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 835 836 list_for_each_entry_safe(mpt3sas_phy, next_phy, 837 &mpt3sas_port->phy_list, port_siblings) { 838 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 839 dev_printk(KERN_INFO, &mpt3sas_port->port->dev, 840 "remove: sas_addr(0x%016llx), phy(%d)\n", 841 (unsigned long long) 842 mpt3sas_port->remote_identify.sas_address, 843 mpt3sas_phy->phy_id); 844 mpt3sas_phy->phy_belongs_to_port = 0; 845 sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy); 846 list_del(&mpt3sas_phy->port_siblings); 847 } 848 sas_port_delete(mpt3sas_port->port); 849 kfree(mpt3sas_port); 850 } 851 852 /** 853 * mpt3sas_transport_add_host_phy - report sas_host phy to transport 854 * @ioc: per adapter object 855 * @mpt3sas_phy: mpt3sas per phy object 856 * @phy_pg0: sas phy page 0 857 * @parent_dev: parent device class object 858 * 859 * Returns 0 for success, non-zero for failure. 860 */ 861 int 862 mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 863 *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) 864 { 865 struct sas_phy *phy; 866 int phy_index = mpt3sas_phy->phy_id; 867 868 869 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 870 phy = sas_phy_alloc(parent_dev, phy_index); 871 if (!phy) { 872 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 873 ioc->name, __FILE__, __LINE__, __func__); 874 return -1; 875 } 876 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 877 &mpt3sas_phy->identify))) { 878 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 879 ioc->name, __FILE__, __LINE__, __func__); 880 sas_phy_free(phy); 881 return -1; 882 } 883 phy->identify = mpt3sas_phy->identify; 884 mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); 885 if (mpt3sas_phy->attached_handle) 886 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 887 &mpt3sas_phy->remote_identify); 888 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 889 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 890 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 891 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 892 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 893 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 894 phy_pg0.HwLinkRate >> 4); 895 phy->minimum_linkrate = _transport_convert_phy_link_rate( 896 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 897 phy->maximum_linkrate = _transport_convert_phy_link_rate( 898 phy_pg0.ProgrammedLinkRate >> 4); 899 900 if ((sas_phy_add(phy))) { 901 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 902 ioc->name, __FILE__, __LINE__, __func__); 903 sas_phy_free(phy); 904 return -1; 905 } 906 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 907 dev_printk(KERN_INFO, &phy->dev, 908 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 909 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 910 mpt3sas_phy->handle, (unsigned long long) 911 mpt3sas_phy->identify.sas_address, 912 mpt3sas_phy->attached_handle, 913 (unsigned long long) 914 mpt3sas_phy->remote_identify.sas_address); 915 mpt3sas_phy->phy = phy; 916 return 0; 917 } 918 919 920 /** 921 * mpt3sas_transport_add_expander_phy - report expander phy to transport 922 * @ioc: per adapter object 923 * @mpt3sas_phy: mpt3sas per phy object 924 * @expander_pg1: expander page 1 925 * @parent_dev: parent device class object 926 * 927 * Returns 0 for success, non-zero for failure. 928 */ 929 int 930 mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 931 *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1, 932 struct device *parent_dev) 933 { 934 struct sas_phy *phy; 935 int phy_index = mpt3sas_phy->phy_id; 936 937 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 938 phy = sas_phy_alloc(parent_dev, phy_index); 939 if (!phy) { 940 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 941 ioc->name, __FILE__, __LINE__, __func__); 942 return -1; 943 } 944 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 945 &mpt3sas_phy->identify))) { 946 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 947 ioc->name, __FILE__, __LINE__, __func__); 948 sas_phy_free(phy); 949 return -1; 950 } 951 phy->identify = mpt3sas_phy->identify; 952 mpt3sas_phy->attached_handle = 953 le16_to_cpu(expander_pg1.AttachedDevHandle); 954 if (mpt3sas_phy->attached_handle) 955 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 956 &mpt3sas_phy->remote_identify); 957 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 958 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 959 expander_pg1.NegotiatedLinkRate & 960 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 961 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 962 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 963 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 964 expander_pg1.HwLinkRate >> 4); 965 phy->minimum_linkrate = _transport_convert_phy_link_rate( 966 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 967 phy->maximum_linkrate = _transport_convert_phy_link_rate( 968 expander_pg1.ProgrammedLinkRate >> 4); 969 970 if ((sas_phy_add(phy))) { 971 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 972 ioc->name, __FILE__, __LINE__, __func__); 973 sas_phy_free(phy); 974 return -1; 975 } 976 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 977 dev_printk(KERN_INFO, &phy->dev, 978 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 979 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 980 mpt3sas_phy->handle, (unsigned long long) 981 mpt3sas_phy->identify.sas_address, 982 mpt3sas_phy->attached_handle, 983 (unsigned long long) 984 mpt3sas_phy->remote_identify.sas_address); 985 mpt3sas_phy->phy = phy; 986 return 0; 987 } 988 989 /** 990 * mpt3sas_transport_update_links - refreshing phy link changes 991 * @ioc: per adapter object 992 * @sas_address: sas address of parent expander or sas host 993 * @handle: attached device handle 994 * @phy_numberv: phy number 995 * @link_rate: new link rate 996 * 997 * Returns nothing. 998 */ 999 void 1000 mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc, 1001 u64 sas_address, u16 handle, u8 phy_number, u8 link_rate) 1002 { 1003 unsigned long flags; 1004 struct _sas_node *sas_node; 1005 struct _sas_phy *mpt3sas_phy; 1006 1007 if (ioc->shost_recovery || ioc->pci_error_recovery) 1008 return; 1009 1010 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1011 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address); 1012 if (!sas_node) { 1013 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1014 return; 1015 } 1016 1017 mpt3sas_phy = &sas_node->phy[phy_number]; 1018 mpt3sas_phy->attached_handle = handle; 1019 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1020 if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) { 1021 _transport_set_identify(ioc, handle, 1022 &mpt3sas_phy->remote_identify); 1023 _transport_add_phy_to_an_existing_port(ioc, sas_node, 1024 mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address); 1025 } else 1026 memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct 1027 sas_identify)); 1028 1029 if (mpt3sas_phy->phy) 1030 mpt3sas_phy->phy->negotiated_linkrate = 1031 _transport_convert_phy_link_rate(link_rate); 1032 1033 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1034 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 1035 "refresh: parent sas_addr(0x%016llx),\n" 1036 "\tlink_rate(0x%02x), phy(%d)\n" 1037 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1038 (unsigned long long)sas_address, 1039 link_rate, phy_number, handle, (unsigned long long) 1040 mpt3sas_phy->remote_identify.sas_address); 1041 } 1042 1043 static inline void * 1044 phy_to_ioc(struct sas_phy *phy) 1045 { 1046 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 1047 return shost_priv(shost); 1048 } 1049 1050 static inline void * 1051 rphy_to_ioc(struct sas_rphy *rphy) 1052 { 1053 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); 1054 return shost_priv(shost); 1055 } 1056 1057 /* report phy error log structure */ 1058 struct phy_error_log_request { 1059 u8 smp_frame_type; /* 0x40 */ 1060 u8 function; /* 0x11 */ 1061 u8 allocated_response_length; 1062 u8 request_length; /* 02 */ 1063 u8 reserved_1[5]; 1064 u8 phy_identifier; 1065 u8 reserved_2[2]; 1066 }; 1067 1068 /* report phy error log reply structure */ 1069 struct phy_error_log_reply { 1070 u8 smp_frame_type; /* 0x41 */ 1071 u8 function; /* 0x11 */ 1072 u8 function_result; 1073 u8 response_length; 1074 __be16 expander_change_count; 1075 u8 reserved_1[3]; 1076 u8 phy_identifier; 1077 u8 reserved_2[2]; 1078 __be32 invalid_dword; 1079 __be32 running_disparity_error; 1080 __be32 loss_of_dword_sync; 1081 __be32 phy_reset_problem; 1082 }; 1083 1084 /** 1085 * _transport_get_expander_phy_error_log - return expander counters 1086 * @ioc: per adapter object 1087 * @phy: The sas phy object 1088 * 1089 * Returns 0 for success, non-zero for failure. 1090 * 1091 */ 1092 static int 1093 _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, 1094 struct sas_phy *phy) 1095 { 1096 Mpi2SmpPassthroughRequest_t *mpi_request; 1097 Mpi2SmpPassthroughReply_t *mpi_reply; 1098 struct phy_error_log_request *phy_error_log_request; 1099 struct phy_error_log_reply *phy_error_log_reply; 1100 int rc; 1101 u16 smid; 1102 u32 ioc_state; 1103 unsigned long timeleft; 1104 void *psge; 1105 u8 issue_reset = 0; 1106 void *data_out = NULL; 1107 dma_addr_t data_out_dma; 1108 u32 sz; 1109 u16 wait_state_count; 1110 1111 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1112 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 1113 __func__, ioc->name); 1114 return -EFAULT; 1115 } 1116 1117 mutex_lock(&ioc->transport_cmds.mutex); 1118 1119 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1120 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", 1121 ioc->name, __func__); 1122 rc = -EAGAIN; 1123 goto out; 1124 } 1125 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1126 1127 wait_state_count = 0; 1128 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1129 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1130 if (wait_state_count++ == 10) { 1131 pr_err(MPT3SAS_FMT 1132 "%s: failed due to ioc not operational\n", 1133 ioc->name, __func__); 1134 rc = -EFAULT; 1135 goto out; 1136 } 1137 ssleep(1); 1138 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1139 pr_info(MPT3SAS_FMT 1140 "%s: waiting for operational state(count=%d)\n", 1141 ioc->name, __func__, wait_state_count); 1142 } 1143 if (wait_state_count) 1144 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 1145 ioc->name, __func__); 1146 1147 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1148 if (!smid) { 1149 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 1150 ioc->name, __func__); 1151 rc = -EAGAIN; 1152 goto out; 1153 } 1154 1155 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1156 ioc->transport_cmds.smid = smid; 1157 1158 sz = sizeof(struct phy_error_log_request) + 1159 sizeof(struct phy_error_log_reply); 1160 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); 1161 if (!data_out) { 1162 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1163 __LINE__, __func__); 1164 rc = -ENOMEM; 1165 mpt3sas_base_free_smid(ioc, smid); 1166 goto out; 1167 } 1168 1169 rc = -EINVAL; 1170 memset(data_out, 0, sz); 1171 phy_error_log_request = data_out; 1172 phy_error_log_request->smp_frame_type = 0x40; 1173 phy_error_log_request->function = 0x11; 1174 phy_error_log_request->request_length = 2; 1175 phy_error_log_request->allocated_response_length = 0; 1176 phy_error_log_request->phy_identifier = phy->number; 1177 1178 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1179 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1180 mpi_request->PhysicalPort = 0xFF; 1181 mpi_request->VF_ID = 0; /* TODO */ 1182 mpi_request->VP_ID = 0; 1183 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1184 mpi_request->RequestDataLength = 1185 cpu_to_le16(sizeof(struct phy_error_log_request)); 1186 psge = &mpi_request->SGL; 1187 1188 ioc->build_sg(ioc, psge, data_out_dma, 1189 sizeof(struct phy_error_log_request), 1190 data_out_dma + sizeof(struct phy_error_log_request), 1191 sizeof(struct phy_error_log_reply)); 1192 1193 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1194 "phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n", 1195 ioc->name, (unsigned long long)phy->identify.sas_address, 1196 phy->number)); 1197 init_completion(&ioc->transport_cmds.done); 1198 mpt3sas_base_put_smid_default(ioc, smid); 1199 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 1200 10*HZ); 1201 1202 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1203 pr_err(MPT3SAS_FMT "%s: timeout\n", 1204 ioc->name, __func__); 1205 _debug_dump_mf(mpi_request, 1206 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1207 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1208 issue_reset = 1; 1209 goto issue_host_reset; 1210 } 1211 1212 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1213 "phy_error_log - complete\n", ioc->name)); 1214 1215 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1216 1217 mpi_reply = ioc->transport_cmds.reply; 1218 1219 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1220 "phy_error_log - reply data transfer size(%d)\n", 1221 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength))); 1222 1223 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1224 sizeof(struct phy_error_log_reply)) 1225 goto out; 1226 1227 phy_error_log_reply = data_out + 1228 sizeof(struct phy_error_log_request); 1229 1230 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1231 "phy_error_log - function_result(%d)\n", 1232 ioc->name, phy_error_log_reply->function_result)); 1233 1234 phy->invalid_dword_count = 1235 be32_to_cpu(phy_error_log_reply->invalid_dword); 1236 phy->running_disparity_error_count = 1237 be32_to_cpu(phy_error_log_reply->running_disparity_error); 1238 phy->loss_of_dword_sync_count = 1239 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync); 1240 phy->phy_reset_problem_count = 1241 be32_to_cpu(phy_error_log_reply->phy_reset_problem); 1242 rc = 0; 1243 } else 1244 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1245 "phy_error_log - no reply\n", ioc->name)); 1246 1247 issue_host_reset: 1248 if (issue_reset) 1249 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 1250 FORCE_BIG_HAMMER); 1251 out: 1252 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1253 if (data_out) 1254 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma); 1255 1256 mutex_unlock(&ioc->transport_cmds.mutex); 1257 return rc; 1258 } 1259 1260 /** 1261 * _transport_get_linkerrors - return phy counters for both hba and expanders 1262 * @phy: The sas phy object 1263 * 1264 * Returns 0 for success, non-zero for failure. 1265 * 1266 */ 1267 static int 1268 _transport_get_linkerrors(struct sas_phy *phy) 1269 { 1270 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1271 unsigned long flags; 1272 Mpi2ConfigReply_t mpi_reply; 1273 Mpi2SasPhyPage1_t phy_pg1; 1274 1275 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1276 if (_transport_sas_node_find_by_sas_address(ioc, 1277 phy->identify.sas_address) == NULL) { 1278 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1279 return -EINVAL; 1280 } 1281 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1282 1283 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1284 return _transport_get_expander_phy_error_log(ioc, phy); 1285 1286 /* get hba phy error logs */ 1287 if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, 1288 phy->number))) { 1289 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1290 ioc->name, __FILE__, __LINE__, __func__); 1291 return -ENXIO; 1292 } 1293 1294 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1295 pr_info(MPT3SAS_FMT 1296 "phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n", 1297 ioc->name, phy->number, 1298 le16_to_cpu(mpi_reply.IOCStatus), 1299 le32_to_cpu(mpi_reply.IOCLogInfo)); 1300 1301 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount); 1302 phy->running_disparity_error_count = 1303 le32_to_cpu(phy_pg1.RunningDisparityErrorCount); 1304 phy->loss_of_dword_sync_count = 1305 le32_to_cpu(phy_pg1.LossDwordSynchCount); 1306 phy->phy_reset_problem_count = 1307 le32_to_cpu(phy_pg1.PhyResetProblemCount); 1308 return 0; 1309 } 1310 1311 /** 1312 * _transport_get_enclosure_identifier - 1313 * @phy: The sas phy object 1314 * 1315 * Obtain the enclosure logical id for an expander. 1316 * Returns 0 for success, non-zero for failure. 1317 */ 1318 static int 1319 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) 1320 { 1321 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1322 struct _sas_device *sas_device; 1323 unsigned long flags; 1324 int rc; 1325 1326 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1327 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1328 rphy->identify.sas_address); 1329 if (sas_device) { 1330 *identifier = sas_device->enclosure_logical_id; 1331 rc = 0; 1332 } else { 1333 *identifier = 0; 1334 rc = -ENXIO; 1335 } 1336 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1337 return rc; 1338 } 1339 1340 /** 1341 * _transport_get_bay_identifier - 1342 * @phy: The sas phy object 1343 * 1344 * Returns the slot id for a device that resides inside an enclosure. 1345 */ 1346 static int 1347 _transport_get_bay_identifier(struct sas_rphy *rphy) 1348 { 1349 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1350 struct _sas_device *sas_device; 1351 unsigned long flags; 1352 int rc; 1353 1354 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1355 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1356 rphy->identify.sas_address); 1357 if (sas_device) 1358 rc = sas_device->slot; 1359 else 1360 rc = -ENXIO; 1361 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1362 return rc; 1363 } 1364 1365 /* phy control request structure */ 1366 struct phy_control_request { 1367 u8 smp_frame_type; /* 0x40 */ 1368 u8 function; /* 0x91 */ 1369 u8 allocated_response_length; 1370 u8 request_length; /* 0x09 */ 1371 u16 expander_change_count; 1372 u8 reserved_1[3]; 1373 u8 phy_identifier; 1374 u8 phy_operation; 1375 u8 reserved_2[13]; 1376 u64 attached_device_name; 1377 u8 programmed_min_physical_link_rate; 1378 u8 programmed_max_physical_link_rate; 1379 u8 reserved_3[6]; 1380 }; 1381 1382 /* phy control reply structure */ 1383 struct phy_control_reply { 1384 u8 smp_frame_type; /* 0x41 */ 1385 u8 function; /* 0x11 */ 1386 u8 function_result; 1387 u8 response_length; 1388 }; 1389 1390 #define SMP_PHY_CONTROL_LINK_RESET (0x01) 1391 #define SMP_PHY_CONTROL_HARD_RESET (0x02) 1392 #define SMP_PHY_CONTROL_DISABLE (0x03) 1393 1394 /** 1395 * _transport_expander_phy_control - expander phy control 1396 * @ioc: per adapter object 1397 * @phy: The sas phy object 1398 * 1399 * Returns 0 for success, non-zero for failure. 1400 * 1401 */ 1402 static int 1403 _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, 1404 struct sas_phy *phy, u8 phy_operation) 1405 { 1406 Mpi2SmpPassthroughRequest_t *mpi_request; 1407 Mpi2SmpPassthroughReply_t *mpi_reply; 1408 struct phy_control_request *phy_control_request; 1409 struct phy_control_reply *phy_control_reply; 1410 int rc; 1411 u16 smid; 1412 u32 ioc_state; 1413 unsigned long timeleft; 1414 void *psge; 1415 u32 sgl_flags; 1416 u8 issue_reset = 0; 1417 void *data_out = NULL; 1418 dma_addr_t data_out_dma; 1419 u32 sz; 1420 u16 wait_state_count; 1421 1422 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1423 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 1424 __func__, ioc->name); 1425 return -EFAULT; 1426 } 1427 1428 mutex_lock(&ioc->transport_cmds.mutex); 1429 1430 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1431 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", 1432 ioc->name, __func__); 1433 rc = -EAGAIN; 1434 goto out; 1435 } 1436 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1437 1438 wait_state_count = 0; 1439 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1440 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1441 if (wait_state_count++ == 10) { 1442 pr_err(MPT3SAS_FMT 1443 "%s: failed due to ioc not operational\n", 1444 ioc->name, __func__); 1445 rc = -EFAULT; 1446 goto out; 1447 } 1448 ssleep(1); 1449 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1450 pr_info(MPT3SAS_FMT 1451 "%s: waiting for operational state(count=%d)\n", 1452 ioc->name, __func__, wait_state_count); 1453 } 1454 if (wait_state_count) 1455 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 1456 ioc->name, __func__); 1457 1458 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1459 if (!smid) { 1460 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 1461 ioc->name, __func__); 1462 rc = -EAGAIN; 1463 goto out; 1464 } 1465 1466 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1467 ioc->transport_cmds.smid = smid; 1468 1469 sz = sizeof(struct phy_control_request) + 1470 sizeof(struct phy_control_reply); 1471 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); 1472 if (!data_out) { 1473 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1474 __LINE__, __func__); 1475 rc = -ENOMEM; 1476 mpt3sas_base_free_smid(ioc, smid); 1477 goto out; 1478 } 1479 1480 rc = -EINVAL; 1481 memset(data_out, 0, sz); 1482 phy_control_request = data_out; 1483 phy_control_request->smp_frame_type = 0x40; 1484 phy_control_request->function = 0x91; 1485 phy_control_request->request_length = 9; 1486 phy_control_request->allocated_response_length = 0; 1487 phy_control_request->phy_identifier = phy->number; 1488 phy_control_request->phy_operation = phy_operation; 1489 phy_control_request->programmed_min_physical_link_rate = 1490 phy->minimum_linkrate << 4; 1491 phy_control_request->programmed_max_physical_link_rate = 1492 phy->maximum_linkrate << 4; 1493 1494 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1495 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1496 mpi_request->PhysicalPort = 0xFF; 1497 mpi_request->VF_ID = 0; /* TODO */ 1498 mpi_request->VP_ID = 0; 1499 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1500 mpi_request->RequestDataLength = 1501 cpu_to_le16(sizeof(struct phy_error_log_request)); 1502 psge = &mpi_request->SGL; 1503 1504 /* WRITE sgel first */ 1505 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | 1506 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); 1507 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; 1508 ioc->base_add_sg_single(psge, sgl_flags | 1509 sizeof(struct phy_control_request), data_out_dma); 1510 1511 /* incr sgel */ 1512 psge += ioc->sge_size; 1513 1514 /* READ sgel last */ 1515 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | 1516 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | 1517 MPI2_SGE_FLAGS_END_OF_LIST); 1518 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; 1519 ioc->base_add_sg_single(psge, sgl_flags | 1520 sizeof(struct phy_control_reply), data_out_dma + 1521 sizeof(struct phy_control_request)); 1522 1523 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1524 "phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", 1525 ioc->name, (unsigned long long)phy->identify.sas_address, 1526 phy->number, phy_operation)); 1527 init_completion(&ioc->transport_cmds.done); 1528 mpt3sas_base_put_smid_default(ioc, smid); 1529 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 1530 10*HZ); 1531 1532 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1533 pr_err(MPT3SAS_FMT "%s: timeout\n", 1534 ioc->name, __func__); 1535 _debug_dump_mf(mpi_request, 1536 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1537 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1538 issue_reset = 1; 1539 goto issue_host_reset; 1540 } 1541 1542 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1543 "phy_control - complete\n", ioc->name)); 1544 1545 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1546 1547 mpi_reply = ioc->transport_cmds.reply; 1548 1549 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1550 "phy_control - reply data transfer size(%d)\n", 1551 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength))); 1552 1553 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1554 sizeof(struct phy_control_reply)) 1555 goto out; 1556 1557 phy_control_reply = data_out + 1558 sizeof(struct phy_control_request); 1559 1560 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1561 "phy_control - function_result(%d)\n", 1562 ioc->name, phy_control_reply->function_result)); 1563 1564 rc = 0; 1565 } else 1566 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1567 "phy_control - no reply\n", ioc->name)); 1568 1569 issue_host_reset: 1570 if (issue_reset) 1571 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 1572 FORCE_BIG_HAMMER); 1573 out: 1574 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1575 if (data_out) 1576 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma); 1577 1578 mutex_unlock(&ioc->transport_cmds.mutex); 1579 return rc; 1580 } 1581 1582 /** 1583 * _transport_phy_reset - 1584 * @phy: The sas phy object 1585 * @hard_reset: 1586 * 1587 * Returns 0 for success, non-zero for failure. 1588 */ 1589 static int 1590 _transport_phy_reset(struct sas_phy *phy, int hard_reset) 1591 { 1592 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1593 Mpi2SasIoUnitControlReply_t mpi_reply; 1594 Mpi2SasIoUnitControlRequest_t mpi_request; 1595 unsigned long flags; 1596 1597 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1598 if (_transport_sas_node_find_by_sas_address(ioc, 1599 phy->identify.sas_address) == NULL) { 1600 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1601 return -EINVAL; 1602 } 1603 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1604 1605 /* handle expander phys */ 1606 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1607 return _transport_expander_phy_control(ioc, phy, 1608 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET : 1609 SMP_PHY_CONTROL_LINK_RESET); 1610 1611 /* handle hba phys */ 1612 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t)); 1613 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; 1614 mpi_request.Operation = hard_reset ? 1615 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET; 1616 mpi_request.PhyNum = phy->number; 1617 1618 if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { 1619 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1620 ioc->name, __FILE__, __LINE__, __func__); 1621 return -ENXIO; 1622 } 1623 1624 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1625 pr_info(MPT3SAS_FMT 1626 "phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n", 1627 ioc->name, phy->number, le16_to_cpu(mpi_reply.IOCStatus), 1628 le32_to_cpu(mpi_reply.IOCLogInfo)); 1629 1630 return 0; 1631 } 1632 1633 /** 1634 * _transport_phy_enable - enable/disable phys 1635 * @phy: The sas phy object 1636 * @enable: enable phy when true 1637 * 1638 * Only support sas_host direct attached phys. 1639 * Returns 0 for success, non-zero for failure. 1640 */ 1641 static int 1642 _transport_phy_enable(struct sas_phy *phy, int enable) 1643 { 1644 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1645 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1646 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; 1647 Mpi2ConfigReply_t mpi_reply; 1648 u16 ioc_status; 1649 u16 sz; 1650 int rc = 0; 1651 unsigned long flags; 1652 int i, discovery_active; 1653 1654 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1655 if (_transport_sas_node_find_by_sas_address(ioc, 1656 phy->identify.sas_address) == NULL) { 1657 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1658 return -EINVAL; 1659 } 1660 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1661 1662 /* handle expander phys */ 1663 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1664 return _transport_expander_phy_control(ioc, phy, 1665 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET : 1666 SMP_PHY_CONTROL_DISABLE); 1667 1668 /* handle hba phys */ 1669 1670 /* read sas_iounit page 0 */ 1671 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * 1672 sizeof(Mpi2SasIOUnit0PhyData_t)); 1673 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); 1674 if (!sas_iounit_pg0) { 1675 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1676 ioc->name, __FILE__, __LINE__, __func__); 1677 rc = -ENOMEM; 1678 goto out; 1679 } 1680 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, 1681 sas_iounit_pg0, sz))) { 1682 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1683 ioc->name, __FILE__, __LINE__, __func__); 1684 rc = -ENXIO; 1685 goto out; 1686 } 1687 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1688 MPI2_IOCSTATUS_MASK; 1689 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1690 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1691 ioc->name, __FILE__, __LINE__, __func__); 1692 rc = -EIO; 1693 goto out; 1694 } 1695 1696 /* unable to enable/disable phys when when discovery is active */ 1697 for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) { 1698 if (sas_iounit_pg0->PhyData[i].PortFlags & 1699 MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) { 1700 pr_err(MPT3SAS_FMT "discovery is active on " \ 1701 "port = %d, phy = %d: unable to enable/disable " 1702 "phys, try again later!\n", ioc->name, 1703 sas_iounit_pg0->PhyData[i].Port, i); 1704 discovery_active = 1; 1705 } 1706 } 1707 1708 if (discovery_active) { 1709 rc = -EAGAIN; 1710 goto out; 1711 } 1712 1713 /* read sas_iounit page 1 */ 1714 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1715 sizeof(Mpi2SasIOUnit1PhyData_t)); 1716 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1717 if (!sas_iounit_pg1) { 1718 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1719 ioc->name, __FILE__, __LINE__, __func__); 1720 rc = -ENOMEM; 1721 goto out; 1722 } 1723 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1724 sas_iounit_pg1, sz))) { 1725 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1726 ioc->name, __FILE__, __LINE__, __func__); 1727 rc = -ENXIO; 1728 goto out; 1729 } 1730 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1731 MPI2_IOCSTATUS_MASK; 1732 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1733 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1734 ioc->name, __FILE__, __LINE__, __func__); 1735 rc = -EIO; 1736 goto out; 1737 } 1738 1739 /* copy Port/PortFlags/PhyFlags from page 0 */ 1740 for (i = 0; i < ioc->sas_hba.num_phys ; i++) { 1741 sas_iounit_pg1->PhyData[i].Port = 1742 sas_iounit_pg0->PhyData[i].Port; 1743 sas_iounit_pg1->PhyData[i].PortFlags = 1744 (sas_iounit_pg0->PhyData[i].PortFlags & 1745 MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG); 1746 sas_iounit_pg1->PhyData[i].PhyFlags = 1747 (sas_iounit_pg0->PhyData[i].PhyFlags & 1748 (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED + 1749 MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED)); 1750 } 1751 1752 if (enable) 1753 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1754 &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1755 else 1756 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1757 |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1758 1759 mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz); 1760 1761 /* link reset */ 1762 if (enable) 1763 _transport_phy_reset(phy, 0); 1764 1765 out: 1766 kfree(sas_iounit_pg1); 1767 kfree(sas_iounit_pg0); 1768 return rc; 1769 } 1770 1771 /** 1772 * _transport_phy_speed - set phy min/max link rates 1773 * @phy: The sas phy object 1774 * @rates: rates defined in sas_phy_linkrates 1775 * 1776 * Only support sas_host direct attached phys. 1777 * Returns 0 for success, non-zero for failure. 1778 */ 1779 static int 1780 _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) 1781 { 1782 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1783 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1784 Mpi2SasPhyPage0_t phy_pg0; 1785 Mpi2ConfigReply_t mpi_reply; 1786 u16 ioc_status; 1787 u16 sz; 1788 int i; 1789 int rc = 0; 1790 unsigned long flags; 1791 1792 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1793 if (_transport_sas_node_find_by_sas_address(ioc, 1794 phy->identify.sas_address) == NULL) { 1795 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1796 return -EINVAL; 1797 } 1798 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1799 1800 if (!rates->minimum_linkrate) 1801 rates->minimum_linkrate = phy->minimum_linkrate; 1802 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw) 1803 rates->minimum_linkrate = phy->minimum_linkrate_hw; 1804 1805 if (!rates->maximum_linkrate) 1806 rates->maximum_linkrate = phy->maximum_linkrate; 1807 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw) 1808 rates->maximum_linkrate = phy->maximum_linkrate_hw; 1809 1810 /* handle expander phys */ 1811 if (phy->identify.sas_address != ioc->sas_hba.sas_address) { 1812 phy->minimum_linkrate = rates->minimum_linkrate; 1813 phy->maximum_linkrate = rates->maximum_linkrate; 1814 return _transport_expander_phy_control(ioc, phy, 1815 SMP_PHY_CONTROL_LINK_RESET); 1816 } 1817 1818 /* handle hba phys */ 1819 1820 /* sas_iounit page 1 */ 1821 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1822 sizeof(Mpi2SasIOUnit1PhyData_t)); 1823 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1824 if (!sas_iounit_pg1) { 1825 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1826 ioc->name, __FILE__, __LINE__, __func__); 1827 rc = -ENOMEM; 1828 goto out; 1829 } 1830 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1831 sas_iounit_pg1, sz))) { 1832 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1833 ioc->name, __FILE__, __LINE__, __func__); 1834 rc = -ENXIO; 1835 goto out; 1836 } 1837 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1838 MPI2_IOCSTATUS_MASK; 1839 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1840 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1841 ioc->name, __FILE__, __LINE__, __func__); 1842 rc = -EIO; 1843 goto out; 1844 } 1845 1846 for (i = 0; i < ioc->sas_hba.num_phys; i++) { 1847 if (phy->number != i) { 1848 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1849 (ioc->sas_hba.phy[i].phy->minimum_linkrate + 1850 (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4)); 1851 } else { 1852 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1853 (rates->minimum_linkrate + 1854 (rates->maximum_linkrate << 4)); 1855 } 1856 } 1857 1858 if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 1859 sz)) { 1860 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1861 ioc->name, __FILE__, __LINE__, __func__); 1862 rc = -ENXIO; 1863 goto out; 1864 } 1865 1866 /* link reset */ 1867 _transport_phy_reset(phy, 0); 1868 1869 /* read phy page 0, then update the rates in the sas transport phy */ 1870 if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0, 1871 phy->number)) { 1872 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1873 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1874 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1875 phy_pg0.ProgrammedLinkRate >> 4); 1876 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1877 phy_pg0.NegotiatedLinkRate & 1878 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1879 } 1880 1881 out: 1882 kfree(sas_iounit_pg1); 1883 return rc; 1884 } 1885 1886 /** 1887 * _transport_smp_handler - transport portal for smp passthru 1888 * @shost: shost object 1889 * @rphy: sas transport rphy object 1890 * @req: 1891 * 1892 * This used primarily for smp_utils. 1893 * Example: 1894 * smp_rep_general /sys/class/bsg/expander-5:0 1895 */ 1896 static int 1897 _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, 1898 struct request *req) 1899 { 1900 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 1901 Mpi2SmpPassthroughRequest_t *mpi_request; 1902 Mpi2SmpPassthroughReply_t *mpi_reply; 1903 int rc; 1904 u16 smid; 1905 u32 ioc_state; 1906 unsigned long timeleft; 1907 void *psge; 1908 u8 issue_reset = 0; 1909 dma_addr_t dma_addr_in = 0; 1910 dma_addr_t dma_addr_out = 0; 1911 dma_addr_t pci_dma_in = 0; 1912 dma_addr_t pci_dma_out = 0; 1913 void *pci_addr_in = NULL; 1914 void *pci_addr_out = NULL; 1915 u16 wait_state_count; 1916 struct request *rsp = req->next_rq; 1917 struct bio_vec bvec; 1918 struct bvec_iter iter; 1919 1920 if (!rsp) { 1921 pr_err(MPT3SAS_FMT "%s: the smp response space is missing\n", 1922 ioc->name, __func__); 1923 return -EINVAL; 1924 } 1925 1926 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1927 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 1928 __func__, ioc->name); 1929 return -EFAULT; 1930 } 1931 1932 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); 1933 if (rc) 1934 return rc; 1935 1936 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1937 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", ioc->name, 1938 __func__); 1939 rc = -EAGAIN; 1940 goto out; 1941 } 1942 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1943 1944 /* Check if the request is split across multiple segments */ 1945 if (bio_multiple_segments(req->bio)) { 1946 u32 offset = 0; 1947 1948 /* Allocate memory and copy the request */ 1949 pci_addr_out = pci_alloc_consistent(ioc->pdev, 1950 blk_rq_bytes(req), &pci_dma_out); 1951 if (!pci_addr_out) { 1952 pr_info(MPT3SAS_FMT "%s(): PCI Addr out = NULL\n", 1953 ioc->name, __func__); 1954 rc = -ENOMEM; 1955 goto out; 1956 } 1957 1958 bio_for_each_segment(bvec, req->bio, iter) { 1959 memcpy(pci_addr_out + offset, 1960 page_address(bvec.bv_page) + bvec.bv_offset, 1961 bvec.bv_len); 1962 offset += bvec.bv_len; 1963 } 1964 } else { 1965 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), 1966 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); 1967 if (pci_dma_mapping_error(ioc->pdev, dma_addr_out)) { 1968 pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n", 1969 ioc->name, __func__); 1970 rc = -ENOMEM; 1971 goto free_pci; 1972 } 1973 } 1974 1975 /* Check if the response needs to be populated across 1976 * multiple segments */ 1977 if (bio_multiple_segments(rsp->bio)) { 1978 pci_addr_in = pci_alloc_consistent(ioc->pdev, blk_rq_bytes(rsp), 1979 &pci_dma_in); 1980 if (!pci_addr_in) { 1981 pr_info(MPT3SAS_FMT "%s(): PCI Addr in = NULL\n", 1982 ioc->name, __func__); 1983 rc = -ENOMEM; 1984 goto unmap; 1985 } 1986 } else { 1987 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), 1988 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); 1989 if (pci_dma_mapping_error(ioc->pdev, dma_addr_in)) { 1990 pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n", 1991 ioc->name, __func__); 1992 rc = -ENOMEM; 1993 goto unmap; 1994 } 1995 } 1996 1997 wait_state_count = 0; 1998 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1999 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 2000 if (wait_state_count++ == 10) { 2001 pr_err(MPT3SAS_FMT 2002 "%s: failed due to ioc not operational\n", 2003 ioc->name, __func__); 2004 rc = -EFAULT; 2005 goto unmap; 2006 } 2007 ssleep(1); 2008 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 2009 pr_info(MPT3SAS_FMT 2010 "%s: waiting for operational state(count=%d)\n", 2011 ioc->name, __func__, wait_state_count); 2012 } 2013 if (wait_state_count) 2014 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 2015 ioc->name, __func__); 2016 2017 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 2018 if (!smid) { 2019 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 2020 ioc->name, __func__); 2021 rc = -EAGAIN; 2022 goto unmap; 2023 } 2024 2025 rc = 0; 2026 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2027 ioc->transport_cmds.smid = smid; 2028 2029 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 2030 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 2031 mpi_request->PhysicalPort = 0xFF; 2032 mpi_request->SASAddress = (rphy) ? 2033 cpu_to_le64(rphy->identify.sas_address) : 2034 cpu_to_le64(ioc->sas_hba.sas_address); 2035 mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4); 2036 psge = &mpi_request->SGL; 2037 2038 if (bio_multiple_segments(req->bio)) 2039 ioc->build_sg(ioc, psge, pci_dma_out, (blk_rq_bytes(req) - 4), 2040 pci_dma_in, (blk_rq_bytes(rsp) + 4)); 2041 else 2042 ioc->build_sg(ioc, psge, dma_addr_out, (blk_rq_bytes(req) - 4), 2043 dma_addr_in, (blk_rq_bytes(rsp) + 4)); 2044 2045 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2046 "%s - sending smp request\n", ioc->name, __func__)); 2047 2048 init_completion(&ioc->transport_cmds.done); 2049 mpt3sas_base_put_smid_default(ioc, smid); 2050 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 2051 10*HZ); 2052 2053 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 2054 pr_err(MPT3SAS_FMT "%s : timeout\n", 2055 __func__, ioc->name); 2056 _debug_dump_mf(mpi_request, 2057 sizeof(Mpi2SmpPassthroughRequest_t)/4); 2058 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 2059 issue_reset = 1; 2060 goto issue_host_reset; 2061 } 2062 2063 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2064 "%s - complete\n", ioc->name, __func__)); 2065 2066 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 2067 2068 mpi_reply = ioc->transport_cmds.reply; 2069 2070 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2071 "%s - reply data transfer size(%d)\n", 2072 ioc->name, __func__, 2073 le16_to_cpu(mpi_reply->ResponseDataLength))); 2074 2075 memcpy(req->sense, mpi_reply, sizeof(*mpi_reply)); 2076 req->sense_len = sizeof(*mpi_reply); 2077 req->resid_len = 0; 2078 rsp->resid_len -= 2079 le16_to_cpu(mpi_reply->ResponseDataLength); 2080 2081 /* check if the resp needs to be copied from the allocated 2082 * pci mem */ 2083 if (bio_multiple_segments(rsp->bio)) { 2084 u32 offset = 0; 2085 u32 bytes_to_copy = 2086 le16_to_cpu(mpi_reply->ResponseDataLength); 2087 bio_for_each_segment(bvec, rsp->bio, iter) { 2088 if (bytes_to_copy <= bvec.bv_len) { 2089 memcpy(page_address(bvec.bv_page) + 2090 bvec.bv_offset, pci_addr_in + 2091 offset, bytes_to_copy); 2092 break; 2093 } else { 2094 memcpy(page_address(bvec.bv_page) + 2095 bvec.bv_offset, pci_addr_in + 2096 offset, bvec.bv_len); 2097 bytes_to_copy -= bvec.bv_len; 2098 } 2099 offset += bvec.bv_len; 2100 } 2101 } 2102 } else { 2103 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2104 "%s - no reply\n", ioc->name, __func__)); 2105 rc = -ENXIO; 2106 } 2107 2108 issue_host_reset: 2109 if (issue_reset) { 2110 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 2111 FORCE_BIG_HAMMER); 2112 rc = -ETIMEDOUT; 2113 } 2114 2115 unmap: 2116 if (dma_addr_out) 2117 pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req), 2118 PCI_DMA_BIDIRECTIONAL); 2119 if (dma_addr_in) 2120 pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp), 2121 PCI_DMA_BIDIRECTIONAL); 2122 2123 free_pci: 2124 if (pci_addr_out) 2125 pci_free_consistent(ioc->pdev, blk_rq_bytes(req), pci_addr_out, 2126 pci_dma_out); 2127 2128 if (pci_addr_in) 2129 pci_free_consistent(ioc->pdev, blk_rq_bytes(rsp), pci_addr_in, 2130 pci_dma_in); 2131 2132 out: 2133 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 2134 mutex_unlock(&ioc->transport_cmds.mutex); 2135 return rc; 2136 } 2137 2138 struct sas_function_template mpt3sas_transport_functions = { 2139 .get_linkerrors = _transport_get_linkerrors, 2140 .get_enclosure_identifier = _transport_get_enclosure_identifier, 2141 .get_bay_identifier = _transport_get_bay_identifier, 2142 .phy_reset = _transport_phy_reset, 2143 .phy_enable = _transport_phy_enable, 2144 .set_phy_speed = _transport_phy_speed, 2145 .smp_handler = _transport_smp_handler, 2146 }; 2147 2148 struct scsi_transport_template *mpt3sas_transport_template; 2149