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 int i; 653 struct sas_port *port; 654 655 mpt3sas_port = kzalloc(sizeof(struct _sas_port), 656 GFP_KERNEL); 657 if (!mpt3sas_port) { 658 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 659 ioc->name, __FILE__, __LINE__, __func__); 660 return NULL; 661 } 662 663 INIT_LIST_HEAD(&mpt3sas_port->port_list); 664 INIT_LIST_HEAD(&mpt3sas_port->phy_list); 665 spin_lock_irqsave(&ioc->sas_node_lock, flags); 666 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address); 667 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 668 669 if (!sas_node) { 670 pr_err(MPT3SAS_FMT 671 "%s: Could not find parent sas_address(0x%016llx)!\n", 672 ioc->name, __func__, (unsigned long long)sas_address); 673 goto out_fail; 674 } 675 676 if ((_transport_set_identify(ioc, handle, 677 &mpt3sas_port->remote_identify))) { 678 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 679 ioc->name, __FILE__, __LINE__, __func__); 680 goto out_fail; 681 } 682 683 if (mpt3sas_port->remote_identify.device_type == SAS_PHY_UNUSED) { 684 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 685 ioc->name, __FILE__, __LINE__, __func__); 686 goto out_fail; 687 } 688 689 _transport_sanity_check(ioc, sas_node, 690 mpt3sas_port->remote_identify.sas_address); 691 692 for (i = 0; i < sas_node->num_phys; i++) { 693 if (sas_node->phy[i].remote_identify.sas_address != 694 mpt3sas_port->remote_identify.sas_address) 695 continue; 696 list_add_tail(&sas_node->phy[i].port_siblings, 697 &mpt3sas_port->phy_list); 698 mpt3sas_port->num_phys++; 699 } 700 701 if (!mpt3sas_port->num_phys) { 702 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 703 ioc->name, __FILE__, __LINE__, __func__); 704 goto out_fail; 705 } 706 707 port = sas_port_alloc_num(sas_node->parent_dev); 708 if ((sas_port_add(port))) { 709 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 710 ioc->name, __FILE__, __LINE__, __func__); 711 goto out_fail; 712 } 713 714 list_for_each_entry(mpt3sas_phy, &mpt3sas_port->phy_list, 715 port_siblings) { 716 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 717 dev_printk(KERN_INFO, &port->dev, 718 "add: handle(0x%04x), sas_addr(0x%016llx), phy(%d)\n", 719 handle, (unsigned long long) 720 mpt3sas_port->remote_identify.sas_address, 721 mpt3sas_phy->phy_id); 722 sas_port_add_phy(port, mpt3sas_phy->phy); 723 mpt3sas_phy->phy_belongs_to_port = 1; 724 } 725 726 mpt3sas_port->port = port; 727 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) 728 rphy = sas_end_device_alloc(port); 729 else 730 rphy = sas_expander_alloc(port, 731 mpt3sas_port->remote_identify.device_type); 732 733 rphy->identify = mpt3sas_port->remote_identify; 734 if ((sas_rphy_add(rphy))) { 735 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 736 ioc->name, __FILE__, __LINE__, __func__); 737 } 738 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 739 dev_printk(KERN_INFO, &rphy->dev, 740 "add: handle(0x%04x), sas_addr(0x%016llx)\n", 741 handle, (unsigned long long) 742 mpt3sas_port->remote_identify.sas_address); 743 mpt3sas_port->rphy = rphy; 744 spin_lock_irqsave(&ioc->sas_node_lock, flags); 745 list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list); 746 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 747 748 /* fill in report manufacture */ 749 if (mpt3sas_port->remote_identify.device_type == 750 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || 751 mpt3sas_port->remote_identify.device_type == 752 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) 753 _transport_expander_report_manufacture(ioc, 754 mpt3sas_port->remote_identify.sas_address, 755 rphy_to_expander_device(rphy)); 756 return mpt3sas_port; 757 758 out_fail: 759 list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list, 760 port_siblings) 761 list_del(&mpt3sas_phy->port_siblings); 762 kfree(mpt3sas_port); 763 return NULL; 764 } 765 766 /** 767 * mpt3sas_transport_port_remove - remove port from the list 768 * @ioc: per adapter object 769 * @sas_address: sas address of attached device 770 * @sas_address_parent: sas address of parent expander or sas host 771 * Context: This function will acquire ioc->sas_node_lock. 772 * 773 * Removing object and freeing associated memory from the 774 * ioc->sas_port_list. 775 * 776 * Return nothing. 777 */ 778 void 779 mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 780 u64 sas_address_parent) 781 { 782 int i; 783 unsigned long flags; 784 struct _sas_port *mpt3sas_port, *next; 785 struct _sas_node *sas_node; 786 u8 found = 0; 787 struct _sas_phy *mpt3sas_phy, *next_phy; 788 789 spin_lock_irqsave(&ioc->sas_node_lock, flags); 790 sas_node = _transport_sas_node_find_by_sas_address(ioc, 791 sas_address_parent); 792 if (!sas_node) { 793 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 794 return; 795 } 796 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, 797 port_list) { 798 if (mpt3sas_port->remote_identify.sas_address != sas_address) 799 continue; 800 found = 1; 801 list_del(&mpt3sas_port->port_list); 802 goto out; 803 } 804 out: 805 if (!found) { 806 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 807 return; 808 } 809 810 for (i = 0; i < sas_node->num_phys; i++) { 811 if (sas_node->phy[i].remote_identify.sas_address == sas_address) 812 memset(&sas_node->phy[i].remote_identify, 0 , 813 sizeof(struct sas_identify)); 814 } 815 816 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 817 818 list_for_each_entry_safe(mpt3sas_phy, next_phy, 819 &mpt3sas_port->phy_list, port_siblings) { 820 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 821 dev_printk(KERN_INFO, &mpt3sas_port->port->dev, 822 "remove: sas_addr(0x%016llx), phy(%d)\n", 823 (unsigned long long) 824 mpt3sas_port->remote_identify.sas_address, 825 mpt3sas_phy->phy_id); 826 mpt3sas_phy->phy_belongs_to_port = 0; 827 sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy); 828 list_del(&mpt3sas_phy->port_siblings); 829 } 830 sas_port_delete(mpt3sas_port->port); 831 kfree(mpt3sas_port); 832 } 833 834 /** 835 * mpt3sas_transport_add_host_phy - report sas_host phy to transport 836 * @ioc: per adapter object 837 * @mpt3sas_phy: mpt3sas per phy object 838 * @phy_pg0: sas phy page 0 839 * @parent_dev: parent device class object 840 * 841 * Returns 0 for success, non-zero for failure. 842 */ 843 int 844 mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 845 *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) 846 { 847 struct sas_phy *phy; 848 int phy_index = mpt3sas_phy->phy_id; 849 850 851 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 852 phy = sas_phy_alloc(parent_dev, phy_index); 853 if (!phy) { 854 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 855 ioc->name, __FILE__, __LINE__, __func__); 856 return -1; 857 } 858 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 859 &mpt3sas_phy->identify))) { 860 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 861 ioc->name, __FILE__, __LINE__, __func__); 862 sas_phy_free(phy); 863 return -1; 864 } 865 phy->identify = mpt3sas_phy->identify; 866 mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); 867 if (mpt3sas_phy->attached_handle) 868 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 869 &mpt3sas_phy->remote_identify); 870 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 871 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 872 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 873 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 874 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 875 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 876 phy_pg0.HwLinkRate >> 4); 877 phy->minimum_linkrate = _transport_convert_phy_link_rate( 878 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 879 phy->maximum_linkrate = _transport_convert_phy_link_rate( 880 phy_pg0.ProgrammedLinkRate >> 4); 881 882 if ((sas_phy_add(phy))) { 883 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 884 ioc->name, __FILE__, __LINE__, __func__); 885 sas_phy_free(phy); 886 return -1; 887 } 888 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 889 dev_printk(KERN_INFO, &phy->dev, 890 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 891 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 892 mpt3sas_phy->handle, (unsigned long long) 893 mpt3sas_phy->identify.sas_address, 894 mpt3sas_phy->attached_handle, 895 (unsigned long long) 896 mpt3sas_phy->remote_identify.sas_address); 897 mpt3sas_phy->phy = phy; 898 return 0; 899 } 900 901 902 /** 903 * mpt3sas_transport_add_expander_phy - report expander phy to transport 904 * @ioc: per adapter object 905 * @mpt3sas_phy: mpt3sas per phy object 906 * @expander_pg1: expander page 1 907 * @parent_dev: parent device class object 908 * 909 * Returns 0 for success, non-zero for failure. 910 */ 911 int 912 mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 913 *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1, 914 struct device *parent_dev) 915 { 916 struct sas_phy *phy; 917 int phy_index = mpt3sas_phy->phy_id; 918 919 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 920 phy = sas_phy_alloc(parent_dev, phy_index); 921 if (!phy) { 922 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 923 ioc->name, __FILE__, __LINE__, __func__); 924 return -1; 925 } 926 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 927 &mpt3sas_phy->identify))) { 928 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 929 ioc->name, __FILE__, __LINE__, __func__); 930 sas_phy_free(phy); 931 return -1; 932 } 933 phy->identify = mpt3sas_phy->identify; 934 mpt3sas_phy->attached_handle = 935 le16_to_cpu(expander_pg1.AttachedDevHandle); 936 if (mpt3sas_phy->attached_handle) 937 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 938 &mpt3sas_phy->remote_identify); 939 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 940 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 941 expander_pg1.NegotiatedLinkRate & 942 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 943 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 944 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 945 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 946 expander_pg1.HwLinkRate >> 4); 947 phy->minimum_linkrate = _transport_convert_phy_link_rate( 948 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 949 phy->maximum_linkrate = _transport_convert_phy_link_rate( 950 expander_pg1.ProgrammedLinkRate >> 4); 951 952 if ((sas_phy_add(phy))) { 953 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 954 ioc->name, __FILE__, __LINE__, __func__); 955 sas_phy_free(phy); 956 return -1; 957 } 958 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 959 dev_printk(KERN_INFO, &phy->dev, 960 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 961 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 962 mpt3sas_phy->handle, (unsigned long long) 963 mpt3sas_phy->identify.sas_address, 964 mpt3sas_phy->attached_handle, 965 (unsigned long long) 966 mpt3sas_phy->remote_identify.sas_address); 967 mpt3sas_phy->phy = phy; 968 return 0; 969 } 970 971 /** 972 * mpt3sas_transport_update_links - refreshing phy link changes 973 * @ioc: per adapter object 974 * @sas_address: sas address of parent expander or sas host 975 * @handle: attached device handle 976 * @phy_numberv: phy number 977 * @link_rate: new link rate 978 * 979 * Returns nothing. 980 */ 981 void 982 mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc, 983 u64 sas_address, u16 handle, u8 phy_number, u8 link_rate) 984 { 985 unsigned long flags; 986 struct _sas_node *sas_node; 987 struct _sas_phy *mpt3sas_phy; 988 989 if (ioc->shost_recovery || ioc->pci_error_recovery) 990 return; 991 992 spin_lock_irqsave(&ioc->sas_node_lock, flags); 993 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address); 994 if (!sas_node) { 995 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 996 return; 997 } 998 999 mpt3sas_phy = &sas_node->phy[phy_number]; 1000 mpt3sas_phy->attached_handle = handle; 1001 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1002 if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) { 1003 _transport_set_identify(ioc, handle, 1004 &mpt3sas_phy->remote_identify); 1005 _transport_add_phy_to_an_existing_port(ioc, sas_node, 1006 mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address); 1007 } else 1008 memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct 1009 sas_identify)); 1010 1011 if (mpt3sas_phy->phy) 1012 mpt3sas_phy->phy->negotiated_linkrate = 1013 _transport_convert_phy_link_rate(link_rate); 1014 1015 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1016 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 1017 "refresh: parent sas_addr(0x%016llx),\n" 1018 "\tlink_rate(0x%02x), phy(%d)\n" 1019 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1020 (unsigned long long)sas_address, 1021 link_rate, phy_number, handle, (unsigned long long) 1022 mpt3sas_phy->remote_identify.sas_address); 1023 } 1024 1025 static inline void * 1026 phy_to_ioc(struct sas_phy *phy) 1027 { 1028 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 1029 return shost_priv(shost); 1030 } 1031 1032 static inline void * 1033 rphy_to_ioc(struct sas_rphy *rphy) 1034 { 1035 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); 1036 return shost_priv(shost); 1037 } 1038 1039 /* report phy error log structure */ 1040 struct phy_error_log_request { 1041 u8 smp_frame_type; /* 0x40 */ 1042 u8 function; /* 0x11 */ 1043 u8 allocated_response_length; 1044 u8 request_length; /* 02 */ 1045 u8 reserved_1[5]; 1046 u8 phy_identifier; 1047 u8 reserved_2[2]; 1048 }; 1049 1050 /* report phy error log reply structure */ 1051 struct phy_error_log_reply { 1052 u8 smp_frame_type; /* 0x41 */ 1053 u8 function; /* 0x11 */ 1054 u8 function_result; 1055 u8 response_length; 1056 __be16 expander_change_count; 1057 u8 reserved_1[3]; 1058 u8 phy_identifier; 1059 u8 reserved_2[2]; 1060 __be32 invalid_dword; 1061 __be32 running_disparity_error; 1062 __be32 loss_of_dword_sync; 1063 __be32 phy_reset_problem; 1064 }; 1065 1066 /** 1067 * _transport_get_expander_phy_error_log - return expander counters 1068 * @ioc: per adapter object 1069 * @phy: The sas phy object 1070 * 1071 * Returns 0 for success, non-zero for failure. 1072 * 1073 */ 1074 static int 1075 _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, 1076 struct sas_phy *phy) 1077 { 1078 Mpi2SmpPassthroughRequest_t *mpi_request; 1079 Mpi2SmpPassthroughReply_t *mpi_reply; 1080 struct phy_error_log_request *phy_error_log_request; 1081 struct phy_error_log_reply *phy_error_log_reply; 1082 int rc; 1083 u16 smid; 1084 u32 ioc_state; 1085 unsigned long timeleft; 1086 void *psge; 1087 u8 issue_reset = 0; 1088 void *data_out = NULL; 1089 dma_addr_t data_out_dma; 1090 u32 sz; 1091 u16 wait_state_count; 1092 1093 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1094 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 1095 __func__, ioc->name); 1096 return -EFAULT; 1097 } 1098 1099 mutex_lock(&ioc->transport_cmds.mutex); 1100 1101 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1102 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", 1103 ioc->name, __func__); 1104 rc = -EAGAIN; 1105 goto out; 1106 } 1107 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1108 1109 wait_state_count = 0; 1110 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1111 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1112 if (wait_state_count++ == 10) { 1113 pr_err(MPT3SAS_FMT 1114 "%s: failed due to ioc not operational\n", 1115 ioc->name, __func__); 1116 rc = -EFAULT; 1117 goto out; 1118 } 1119 ssleep(1); 1120 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1121 pr_info(MPT3SAS_FMT 1122 "%s: waiting for operational state(count=%d)\n", 1123 ioc->name, __func__, wait_state_count); 1124 } 1125 if (wait_state_count) 1126 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 1127 ioc->name, __func__); 1128 1129 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1130 if (!smid) { 1131 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 1132 ioc->name, __func__); 1133 rc = -EAGAIN; 1134 goto out; 1135 } 1136 1137 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1138 ioc->transport_cmds.smid = smid; 1139 1140 sz = sizeof(struct phy_error_log_request) + 1141 sizeof(struct phy_error_log_reply); 1142 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); 1143 if (!data_out) { 1144 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1145 __LINE__, __func__); 1146 rc = -ENOMEM; 1147 mpt3sas_base_free_smid(ioc, smid); 1148 goto out; 1149 } 1150 1151 rc = -EINVAL; 1152 memset(data_out, 0, sz); 1153 phy_error_log_request = data_out; 1154 phy_error_log_request->smp_frame_type = 0x40; 1155 phy_error_log_request->function = 0x11; 1156 phy_error_log_request->request_length = 2; 1157 phy_error_log_request->allocated_response_length = 0; 1158 phy_error_log_request->phy_identifier = phy->number; 1159 1160 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1161 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1162 mpi_request->PhysicalPort = 0xFF; 1163 mpi_request->VF_ID = 0; /* TODO */ 1164 mpi_request->VP_ID = 0; 1165 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1166 mpi_request->RequestDataLength = 1167 cpu_to_le16(sizeof(struct phy_error_log_request)); 1168 psge = &mpi_request->SGL; 1169 1170 ioc->build_sg(ioc, psge, data_out_dma, 1171 sizeof(struct phy_error_log_request), 1172 data_out_dma + sizeof(struct phy_error_log_request), 1173 sizeof(struct phy_error_log_reply)); 1174 1175 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1176 "phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n", 1177 ioc->name, (unsigned long long)phy->identify.sas_address, 1178 phy->number)); 1179 init_completion(&ioc->transport_cmds.done); 1180 mpt3sas_base_put_smid_default(ioc, smid); 1181 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 1182 10*HZ); 1183 1184 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1185 pr_err(MPT3SAS_FMT "%s: timeout\n", 1186 ioc->name, __func__); 1187 _debug_dump_mf(mpi_request, 1188 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1189 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1190 issue_reset = 1; 1191 goto issue_host_reset; 1192 } 1193 1194 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1195 "phy_error_log - complete\n", ioc->name)); 1196 1197 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1198 1199 mpi_reply = ioc->transport_cmds.reply; 1200 1201 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1202 "phy_error_log - reply data transfer size(%d)\n", 1203 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength))); 1204 1205 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1206 sizeof(struct phy_error_log_reply)) 1207 goto out; 1208 1209 phy_error_log_reply = data_out + 1210 sizeof(struct phy_error_log_request); 1211 1212 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1213 "phy_error_log - function_result(%d)\n", 1214 ioc->name, phy_error_log_reply->function_result)); 1215 1216 phy->invalid_dword_count = 1217 be32_to_cpu(phy_error_log_reply->invalid_dword); 1218 phy->running_disparity_error_count = 1219 be32_to_cpu(phy_error_log_reply->running_disparity_error); 1220 phy->loss_of_dword_sync_count = 1221 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync); 1222 phy->phy_reset_problem_count = 1223 be32_to_cpu(phy_error_log_reply->phy_reset_problem); 1224 rc = 0; 1225 } else 1226 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1227 "phy_error_log - no reply\n", ioc->name)); 1228 1229 issue_host_reset: 1230 if (issue_reset) 1231 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 1232 FORCE_BIG_HAMMER); 1233 out: 1234 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1235 if (data_out) 1236 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma); 1237 1238 mutex_unlock(&ioc->transport_cmds.mutex); 1239 return rc; 1240 } 1241 1242 /** 1243 * _transport_get_linkerrors - return phy counters for both hba and expanders 1244 * @phy: The sas phy object 1245 * 1246 * Returns 0 for success, non-zero for failure. 1247 * 1248 */ 1249 static int 1250 _transport_get_linkerrors(struct sas_phy *phy) 1251 { 1252 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1253 unsigned long flags; 1254 Mpi2ConfigReply_t mpi_reply; 1255 Mpi2SasPhyPage1_t phy_pg1; 1256 1257 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1258 if (_transport_sas_node_find_by_sas_address(ioc, 1259 phy->identify.sas_address) == NULL) { 1260 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1261 return -EINVAL; 1262 } 1263 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1264 1265 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1266 return _transport_get_expander_phy_error_log(ioc, phy); 1267 1268 /* get hba phy error logs */ 1269 if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, 1270 phy->number))) { 1271 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1272 ioc->name, __FILE__, __LINE__, __func__); 1273 return -ENXIO; 1274 } 1275 1276 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1277 pr_info(MPT3SAS_FMT 1278 "phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n", 1279 ioc->name, phy->number, 1280 le16_to_cpu(mpi_reply.IOCStatus), 1281 le32_to_cpu(mpi_reply.IOCLogInfo)); 1282 1283 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount); 1284 phy->running_disparity_error_count = 1285 le32_to_cpu(phy_pg1.RunningDisparityErrorCount); 1286 phy->loss_of_dword_sync_count = 1287 le32_to_cpu(phy_pg1.LossDwordSynchCount); 1288 phy->phy_reset_problem_count = 1289 le32_to_cpu(phy_pg1.PhyResetProblemCount); 1290 return 0; 1291 } 1292 1293 /** 1294 * _transport_get_enclosure_identifier - 1295 * @phy: The sas phy object 1296 * 1297 * Obtain the enclosure logical id for an expander. 1298 * Returns 0 for success, non-zero for failure. 1299 */ 1300 static int 1301 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) 1302 { 1303 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1304 struct _sas_device *sas_device; 1305 unsigned long flags; 1306 int rc; 1307 1308 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1309 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1310 rphy->identify.sas_address); 1311 if (sas_device) { 1312 *identifier = sas_device->enclosure_logical_id; 1313 rc = 0; 1314 } else { 1315 *identifier = 0; 1316 rc = -ENXIO; 1317 } 1318 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1319 return rc; 1320 } 1321 1322 /** 1323 * _transport_get_bay_identifier - 1324 * @phy: The sas phy object 1325 * 1326 * Returns the slot id for a device that resides inside an enclosure. 1327 */ 1328 static int 1329 _transport_get_bay_identifier(struct sas_rphy *rphy) 1330 { 1331 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1332 struct _sas_device *sas_device; 1333 unsigned long flags; 1334 int rc; 1335 1336 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1337 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, 1338 rphy->identify.sas_address); 1339 if (sas_device) 1340 rc = sas_device->slot; 1341 else 1342 rc = -ENXIO; 1343 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1344 return rc; 1345 } 1346 1347 /* phy control request structure */ 1348 struct phy_control_request { 1349 u8 smp_frame_type; /* 0x40 */ 1350 u8 function; /* 0x91 */ 1351 u8 allocated_response_length; 1352 u8 request_length; /* 0x09 */ 1353 u16 expander_change_count; 1354 u8 reserved_1[3]; 1355 u8 phy_identifier; 1356 u8 phy_operation; 1357 u8 reserved_2[13]; 1358 u64 attached_device_name; 1359 u8 programmed_min_physical_link_rate; 1360 u8 programmed_max_physical_link_rate; 1361 u8 reserved_3[6]; 1362 }; 1363 1364 /* phy control reply structure */ 1365 struct phy_control_reply { 1366 u8 smp_frame_type; /* 0x41 */ 1367 u8 function; /* 0x11 */ 1368 u8 function_result; 1369 u8 response_length; 1370 }; 1371 1372 #define SMP_PHY_CONTROL_LINK_RESET (0x01) 1373 #define SMP_PHY_CONTROL_HARD_RESET (0x02) 1374 #define SMP_PHY_CONTROL_DISABLE (0x03) 1375 1376 /** 1377 * _transport_expander_phy_control - expander phy control 1378 * @ioc: per adapter object 1379 * @phy: The sas phy object 1380 * 1381 * Returns 0 for success, non-zero for failure. 1382 * 1383 */ 1384 static int 1385 _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, 1386 struct sas_phy *phy, u8 phy_operation) 1387 { 1388 Mpi2SmpPassthroughRequest_t *mpi_request; 1389 Mpi2SmpPassthroughReply_t *mpi_reply; 1390 struct phy_control_request *phy_control_request; 1391 struct phy_control_reply *phy_control_reply; 1392 int rc; 1393 u16 smid; 1394 u32 ioc_state; 1395 unsigned long timeleft; 1396 void *psge; 1397 u32 sgl_flags; 1398 u8 issue_reset = 0; 1399 void *data_out = NULL; 1400 dma_addr_t data_out_dma; 1401 u32 sz; 1402 u16 wait_state_count; 1403 1404 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1405 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 1406 __func__, ioc->name); 1407 return -EFAULT; 1408 } 1409 1410 mutex_lock(&ioc->transport_cmds.mutex); 1411 1412 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1413 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", 1414 ioc->name, __func__); 1415 rc = -EAGAIN; 1416 goto out; 1417 } 1418 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1419 1420 wait_state_count = 0; 1421 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1422 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1423 if (wait_state_count++ == 10) { 1424 pr_err(MPT3SAS_FMT 1425 "%s: failed due to ioc not operational\n", 1426 ioc->name, __func__); 1427 rc = -EFAULT; 1428 goto out; 1429 } 1430 ssleep(1); 1431 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1432 pr_info(MPT3SAS_FMT 1433 "%s: waiting for operational state(count=%d)\n", 1434 ioc->name, __func__, wait_state_count); 1435 } 1436 if (wait_state_count) 1437 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 1438 ioc->name, __func__); 1439 1440 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1441 if (!smid) { 1442 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 1443 ioc->name, __func__); 1444 rc = -EAGAIN; 1445 goto out; 1446 } 1447 1448 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1449 ioc->transport_cmds.smid = smid; 1450 1451 sz = sizeof(struct phy_control_request) + 1452 sizeof(struct phy_control_reply); 1453 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); 1454 if (!data_out) { 1455 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1456 __LINE__, __func__); 1457 rc = -ENOMEM; 1458 mpt3sas_base_free_smid(ioc, smid); 1459 goto out; 1460 } 1461 1462 rc = -EINVAL; 1463 memset(data_out, 0, sz); 1464 phy_control_request = data_out; 1465 phy_control_request->smp_frame_type = 0x40; 1466 phy_control_request->function = 0x91; 1467 phy_control_request->request_length = 9; 1468 phy_control_request->allocated_response_length = 0; 1469 phy_control_request->phy_identifier = phy->number; 1470 phy_control_request->phy_operation = phy_operation; 1471 phy_control_request->programmed_min_physical_link_rate = 1472 phy->minimum_linkrate << 4; 1473 phy_control_request->programmed_max_physical_link_rate = 1474 phy->maximum_linkrate << 4; 1475 1476 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1477 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1478 mpi_request->PhysicalPort = 0xFF; 1479 mpi_request->VF_ID = 0; /* TODO */ 1480 mpi_request->VP_ID = 0; 1481 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1482 mpi_request->RequestDataLength = 1483 cpu_to_le16(sizeof(struct phy_error_log_request)); 1484 psge = &mpi_request->SGL; 1485 1486 /* WRITE sgel first */ 1487 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | 1488 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); 1489 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; 1490 ioc->base_add_sg_single(psge, sgl_flags | 1491 sizeof(struct phy_control_request), data_out_dma); 1492 1493 /* incr sgel */ 1494 psge += ioc->sge_size; 1495 1496 /* READ sgel last */ 1497 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | 1498 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | 1499 MPI2_SGE_FLAGS_END_OF_LIST); 1500 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; 1501 ioc->base_add_sg_single(psge, sgl_flags | 1502 sizeof(struct phy_control_reply), data_out_dma + 1503 sizeof(struct phy_control_request)); 1504 1505 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1506 "phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", 1507 ioc->name, (unsigned long long)phy->identify.sas_address, 1508 phy->number, phy_operation)); 1509 init_completion(&ioc->transport_cmds.done); 1510 mpt3sas_base_put_smid_default(ioc, smid); 1511 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 1512 10*HZ); 1513 1514 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1515 pr_err(MPT3SAS_FMT "%s: timeout\n", 1516 ioc->name, __func__); 1517 _debug_dump_mf(mpi_request, 1518 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1519 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1520 issue_reset = 1; 1521 goto issue_host_reset; 1522 } 1523 1524 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1525 "phy_control - complete\n", ioc->name)); 1526 1527 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1528 1529 mpi_reply = ioc->transport_cmds.reply; 1530 1531 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1532 "phy_control - reply data transfer size(%d)\n", 1533 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength))); 1534 1535 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1536 sizeof(struct phy_control_reply)) 1537 goto out; 1538 1539 phy_control_reply = data_out + 1540 sizeof(struct phy_control_request); 1541 1542 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1543 "phy_control - function_result(%d)\n", 1544 ioc->name, phy_control_reply->function_result)); 1545 1546 rc = 0; 1547 } else 1548 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 1549 "phy_control - no reply\n", ioc->name)); 1550 1551 issue_host_reset: 1552 if (issue_reset) 1553 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 1554 FORCE_BIG_HAMMER); 1555 out: 1556 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1557 if (data_out) 1558 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma); 1559 1560 mutex_unlock(&ioc->transport_cmds.mutex); 1561 return rc; 1562 } 1563 1564 /** 1565 * _transport_phy_reset - 1566 * @phy: The sas phy object 1567 * @hard_reset: 1568 * 1569 * Returns 0 for success, non-zero for failure. 1570 */ 1571 static int 1572 _transport_phy_reset(struct sas_phy *phy, int hard_reset) 1573 { 1574 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1575 Mpi2SasIoUnitControlReply_t mpi_reply; 1576 Mpi2SasIoUnitControlRequest_t mpi_request; 1577 unsigned long flags; 1578 1579 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1580 if (_transport_sas_node_find_by_sas_address(ioc, 1581 phy->identify.sas_address) == NULL) { 1582 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1583 return -EINVAL; 1584 } 1585 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1586 1587 /* handle expander phys */ 1588 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1589 return _transport_expander_phy_control(ioc, phy, 1590 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET : 1591 SMP_PHY_CONTROL_LINK_RESET); 1592 1593 /* handle hba phys */ 1594 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t)); 1595 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; 1596 mpi_request.Operation = hard_reset ? 1597 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET; 1598 mpi_request.PhyNum = phy->number; 1599 1600 if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { 1601 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1602 ioc->name, __FILE__, __LINE__, __func__); 1603 return -ENXIO; 1604 } 1605 1606 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1607 pr_info(MPT3SAS_FMT 1608 "phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n", 1609 ioc->name, phy->number, le16_to_cpu(mpi_reply.IOCStatus), 1610 le32_to_cpu(mpi_reply.IOCLogInfo)); 1611 1612 return 0; 1613 } 1614 1615 /** 1616 * _transport_phy_enable - enable/disable phys 1617 * @phy: The sas phy object 1618 * @enable: enable phy when true 1619 * 1620 * Only support sas_host direct attached phys. 1621 * Returns 0 for success, non-zero for failure. 1622 */ 1623 static int 1624 _transport_phy_enable(struct sas_phy *phy, int enable) 1625 { 1626 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1627 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1628 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; 1629 Mpi2ConfigReply_t mpi_reply; 1630 u16 ioc_status; 1631 u16 sz; 1632 int rc = 0; 1633 unsigned long flags; 1634 int i, discovery_active; 1635 1636 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1637 if (_transport_sas_node_find_by_sas_address(ioc, 1638 phy->identify.sas_address) == NULL) { 1639 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1640 return -EINVAL; 1641 } 1642 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1643 1644 /* handle expander phys */ 1645 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1646 return _transport_expander_phy_control(ioc, phy, 1647 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET : 1648 SMP_PHY_CONTROL_DISABLE); 1649 1650 /* handle hba phys */ 1651 1652 /* read sas_iounit page 0 */ 1653 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * 1654 sizeof(Mpi2SasIOUnit0PhyData_t)); 1655 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); 1656 if (!sas_iounit_pg0) { 1657 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1658 ioc->name, __FILE__, __LINE__, __func__); 1659 rc = -ENOMEM; 1660 goto out; 1661 } 1662 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, 1663 sas_iounit_pg0, sz))) { 1664 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1665 ioc->name, __FILE__, __LINE__, __func__); 1666 rc = -ENXIO; 1667 goto out; 1668 } 1669 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1670 MPI2_IOCSTATUS_MASK; 1671 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1672 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1673 ioc->name, __FILE__, __LINE__, __func__); 1674 rc = -EIO; 1675 goto out; 1676 } 1677 1678 /* unable to enable/disable phys when when discovery is active */ 1679 for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) { 1680 if (sas_iounit_pg0->PhyData[i].PortFlags & 1681 MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) { 1682 pr_err(MPT3SAS_FMT "discovery is active on " \ 1683 "port = %d, phy = %d: unable to enable/disable " 1684 "phys, try again later!\n", ioc->name, 1685 sas_iounit_pg0->PhyData[i].Port, i); 1686 discovery_active = 1; 1687 } 1688 } 1689 1690 if (discovery_active) { 1691 rc = -EAGAIN; 1692 goto out; 1693 } 1694 1695 /* read sas_iounit page 1 */ 1696 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1697 sizeof(Mpi2SasIOUnit1PhyData_t)); 1698 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1699 if (!sas_iounit_pg1) { 1700 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1701 ioc->name, __FILE__, __LINE__, __func__); 1702 rc = -ENOMEM; 1703 goto out; 1704 } 1705 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1706 sas_iounit_pg1, sz))) { 1707 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1708 ioc->name, __FILE__, __LINE__, __func__); 1709 rc = -ENXIO; 1710 goto out; 1711 } 1712 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1713 MPI2_IOCSTATUS_MASK; 1714 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1715 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1716 ioc->name, __FILE__, __LINE__, __func__); 1717 rc = -EIO; 1718 goto out; 1719 } 1720 1721 /* copy Port/PortFlags/PhyFlags from page 0 */ 1722 for (i = 0; i < ioc->sas_hba.num_phys ; i++) { 1723 sas_iounit_pg1->PhyData[i].Port = 1724 sas_iounit_pg0->PhyData[i].Port; 1725 sas_iounit_pg1->PhyData[i].PortFlags = 1726 (sas_iounit_pg0->PhyData[i].PortFlags & 1727 MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG); 1728 sas_iounit_pg1->PhyData[i].PhyFlags = 1729 (sas_iounit_pg0->PhyData[i].PhyFlags & 1730 (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED + 1731 MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED)); 1732 } 1733 1734 if (enable) 1735 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1736 &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1737 else 1738 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1739 |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1740 1741 mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz); 1742 1743 /* link reset */ 1744 if (enable) 1745 _transport_phy_reset(phy, 0); 1746 1747 out: 1748 kfree(sas_iounit_pg1); 1749 kfree(sas_iounit_pg0); 1750 return rc; 1751 } 1752 1753 /** 1754 * _transport_phy_speed - set phy min/max link rates 1755 * @phy: The sas phy object 1756 * @rates: rates defined in sas_phy_linkrates 1757 * 1758 * Only support sas_host direct attached phys. 1759 * Returns 0 for success, non-zero for failure. 1760 */ 1761 static int 1762 _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) 1763 { 1764 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1765 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1766 Mpi2SasPhyPage0_t phy_pg0; 1767 Mpi2ConfigReply_t mpi_reply; 1768 u16 ioc_status; 1769 u16 sz; 1770 int i; 1771 int rc = 0; 1772 unsigned long flags; 1773 1774 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1775 if (_transport_sas_node_find_by_sas_address(ioc, 1776 phy->identify.sas_address) == NULL) { 1777 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1778 return -EINVAL; 1779 } 1780 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1781 1782 if (!rates->minimum_linkrate) 1783 rates->minimum_linkrate = phy->minimum_linkrate; 1784 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw) 1785 rates->minimum_linkrate = phy->minimum_linkrate_hw; 1786 1787 if (!rates->maximum_linkrate) 1788 rates->maximum_linkrate = phy->maximum_linkrate; 1789 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw) 1790 rates->maximum_linkrate = phy->maximum_linkrate_hw; 1791 1792 /* handle expander phys */ 1793 if (phy->identify.sas_address != ioc->sas_hba.sas_address) { 1794 phy->minimum_linkrate = rates->minimum_linkrate; 1795 phy->maximum_linkrate = rates->maximum_linkrate; 1796 return _transport_expander_phy_control(ioc, phy, 1797 SMP_PHY_CONTROL_LINK_RESET); 1798 } 1799 1800 /* handle hba phys */ 1801 1802 /* sas_iounit page 1 */ 1803 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1804 sizeof(Mpi2SasIOUnit1PhyData_t)); 1805 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1806 if (!sas_iounit_pg1) { 1807 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1808 ioc->name, __FILE__, __LINE__, __func__); 1809 rc = -ENOMEM; 1810 goto out; 1811 } 1812 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1813 sas_iounit_pg1, sz))) { 1814 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1815 ioc->name, __FILE__, __LINE__, __func__); 1816 rc = -ENXIO; 1817 goto out; 1818 } 1819 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1820 MPI2_IOCSTATUS_MASK; 1821 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1822 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1823 ioc->name, __FILE__, __LINE__, __func__); 1824 rc = -EIO; 1825 goto out; 1826 } 1827 1828 for (i = 0; i < ioc->sas_hba.num_phys; i++) { 1829 if (phy->number != i) { 1830 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1831 (ioc->sas_hba.phy[i].phy->minimum_linkrate + 1832 (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4)); 1833 } else { 1834 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1835 (rates->minimum_linkrate + 1836 (rates->maximum_linkrate << 4)); 1837 } 1838 } 1839 1840 if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 1841 sz)) { 1842 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 1843 ioc->name, __FILE__, __LINE__, __func__); 1844 rc = -ENXIO; 1845 goto out; 1846 } 1847 1848 /* link reset */ 1849 _transport_phy_reset(phy, 0); 1850 1851 /* read phy page 0, then update the rates in the sas transport phy */ 1852 if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0, 1853 phy->number)) { 1854 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1855 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1856 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1857 phy_pg0.ProgrammedLinkRate >> 4); 1858 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1859 phy_pg0.NegotiatedLinkRate & 1860 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1861 } 1862 1863 out: 1864 kfree(sas_iounit_pg1); 1865 return rc; 1866 } 1867 1868 /** 1869 * _transport_smp_handler - transport portal for smp passthru 1870 * @shost: shost object 1871 * @rphy: sas transport rphy object 1872 * @req: 1873 * 1874 * This used primarily for smp_utils. 1875 * Example: 1876 * smp_rep_general /sys/class/bsg/expander-5:0 1877 */ 1878 static int 1879 _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, 1880 struct request *req) 1881 { 1882 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 1883 Mpi2SmpPassthroughRequest_t *mpi_request; 1884 Mpi2SmpPassthroughReply_t *mpi_reply; 1885 int rc; 1886 u16 smid; 1887 u32 ioc_state; 1888 unsigned long timeleft; 1889 void *psge; 1890 u8 issue_reset = 0; 1891 dma_addr_t dma_addr_in = 0; 1892 dma_addr_t dma_addr_out = 0; 1893 dma_addr_t pci_dma_in = 0; 1894 dma_addr_t pci_dma_out = 0; 1895 void *pci_addr_in = NULL; 1896 void *pci_addr_out = NULL; 1897 u16 wait_state_count; 1898 struct request *rsp = req->next_rq; 1899 struct bio_vec bvec; 1900 struct bvec_iter iter; 1901 1902 if (!rsp) { 1903 pr_err(MPT3SAS_FMT "%s: the smp response space is missing\n", 1904 ioc->name, __func__); 1905 return -EINVAL; 1906 } 1907 1908 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1909 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", 1910 __func__, ioc->name); 1911 return -EFAULT; 1912 } 1913 1914 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); 1915 if (rc) 1916 return rc; 1917 1918 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1919 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", ioc->name, 1920 __func__); 1921 rc = -EAGAIN; 1922 goto out; 1923 } 1924 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1925 1926 /* Check if the request is split across multiple segments */ 1927 if (bio_multiple_segments(req->bio)) { 1928 u32 offset = 0; 1929 1930 /* Allocate memory and copy the request */ 1931 pci_addr_out = pci_alloc_consistent(ioc->pdev, 1932 blk_rq_bytes(req), &pci_dma_out); 1933 if (!pci_addr_out) { 1934 pr_info(MPT3SAS_FMT "%s(): PCI Addr out = NULL\n", 1935 ioc->name, __func__); 1936 rc = -ENOMEM; 1937 goto out; 1938 } 1939 1940 bio_for_each_segment(bvec, req->bio, iter) { 1941 memcpy(pci_addr_out + offset, 1942 page_address(bvec.bv_page) + bvec.bv_offset, 1943 bvec.bv_len); 1944 offset += bvec.bv_len; 1945 } 1946 } else { 1947 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), 1948 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); 1949 if (!dma_addr_out) { 1950 pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n", 1951 ioc->name, __func__); 1952 rc = -ENOMEM; 1953 goto free_pci; 1954 } 1955 } 1956 1957 /* Check if the response needs to be populated across 1958 * multiple segments */ 1959 if (bio_multiple_segments(rsp->bio)) { 1960 pci_addr_in = pci_alloc_consistent(ioc->pdev, blk_rq_bytes(rsp), 1961 &pci_dma_in); 1962 if (!pci_addr_in) { 1963 pr_info(MPT3SAS_FMT "%s(): PCI Addr in = NULL\n", 1964 ioc->name, __func__); 1965 rc = -ENOMEM; 1966 goto unmap; 1967 } 1968 } else { 1969 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), 1970 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); 1971 if (!dma_addr_in) { 1972 pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n", 1973 ioc->name, __func__); 1974 rc = -ENOMEM; 1975 goto unmap; 1976 } 1977 } 1978 1979 wait_state_count = 0; 1980 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1981 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { 1982 if (wait_state_count++ == 10) { 1983 pr_err(MPT3SAS_FMT 1984 "%s: failed due to ioc not operational\n", 1985 ioc->name, __func__); 1986 rc = -EFAULT; 1987 goto unmap; 1988 } 1989 ssleep(1); 1990 ioc_state = mpt3sas_base_get_iocstate(ioc, 1); 1991 pr_info(MPT3SAS_FMT 1992 "%s: waiting for operational state(count=%d)\n", 1993 ioc->name, __func__, wait_state_count); 1994 } 1995 if (wait_state_count) 1996 pr_info(MPT3SAS_FMT "%s: ioc is operational\n", 1997 ioc->name, __func__); 1998 1999 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 2000 if (!smid) { 2001 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", 2002 ioc->name, __func__); 2003 rc = -EAGAIN; 2004 goto unmap; 2005 } 2006 2007 rc = 0; 2008 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2009 ioc->transport_cmds.smid = smid; 2010 2011 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 2012 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 2013 mpi_request->PhysicalPort = 0xFF; 2014 mpi_request->SASAddress = (rphy) ? 2015 cpu_to_le64(rphy->identify.sas_address) : 2016 cpu_to_le64(ioc->sas_hba.sas_address); 2017 mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4); 2018 psge = &mpi_request->SGL; 2019 2020 if (bio_multiple_segments(req->bio)) 2021 ioc->build_sg(ioc, psge, pci_dma_out, (blk_rq_bytes(req) - 4), 2022 pci_dma_in, (blk_rq_bytes(rsp) + 4)); 2023 else 2024 ioc->build_sg(ioc, psge, dma_addr_out, (blk_rq_bytes(req) - 4), 2025 dma_addr_in, (blk_rq_bytes(rsp) + 4)); 2026 2027 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2028 "%s - sending smp request\n", ioc->name, __func__)); 2029 2030 init_completion(&ioc->transport_cmds.done); 2031 mpt3sas_base_put_smid_default(ioc, smid); 2032 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, 2033 10*HZ); 2034 2035 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 2036 pr_err(MPT3SAS_FMT "%s : timeout\n", 2037 __func__, ioc->name); 2038 _debug_dump_mf(mpi_request, 2039 sizeof(Mpi2SmpPassthroughRequest_t)/4); 2040 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 2041 issue_reset = 1; 2042 goto issue_host_reset; 2043 } 2044 2045 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2046 "%s - complete\n", ioc->name, __func__)); 2047 2048 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 2049 2050 mpi_reply = ioc->transport_cmds.reply; 2051 2052 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2053 "%s - reply data transfer size(%d)\n", 2054 ioc->name, __func__, 2055 le16_to_cpu(mpi_reply->ResponseDataLength))); 2056 2057 memcpy(req->sense, mpi_reply, sizeof(*mpi_reply)); 2058 req->sense_len = sizeof(*mpi_reply); 2059 req->resid_len = 0; 2060 rsp->resid_len -= 2061 le16_to_cpu(mpi_reply->ResponseDataLength); 2062 2063 /* check if the resp needs to be copied from the allocated 2064 * pci mem */ 2065 if (bio_multiple_segments(rsp->bio)) { 2066 u32 offset = 0; 2067 u32 bytes_to_copy = 2068 le16_to_cpu(mpi_reply->ResponseDataLength); 2069 bio_for_each_segment(bvec, rsp->bio, iter) { 2070 if (bytes_to_copy <= bvec.bv_len) { 2071 memcpy(page_address(bvec.bv_page) + 2072 bvec.bv_offset, pci_addr_in + 2073 offset, bytes_to_copy); 2074 break; 2075 } else { 2076 memcpy(page_address(bvec.bv_page) + 2077 bvec.bv_offset, pci_addr_in + 2078 offset, bvec.bv_len); 2079 bytes_to_copy -= bvec.bv_len; 2080 } 2081 offset += bvec.bv_len; 2082 } 2083 } 2084 } else { 2085 dtransportprintk(ioc, pr_info(MPT3SAS_FMT 2086 "%s - no reply\n", ioc->name, __func__)); 2087 rc = -ENXIO; 2088 } 2089 2090 issue_host_reset: 2091 if (issue_reset) { 2092 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, 2093 FORCE_BIG_HAMMER); 2094 rc = -ETIMEDOUT; 2095 } 2096 2097 unmap: 2098 if (dma_addr_out) 2099 pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req), 2100 PCI_DMA_BIDIRECTIONAL); 2101 if (dma_addr_in) 2102 pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp), 2103 PCI_DMA_BIDIRECTIONAL); 2104 2105 free_pci: 2106 if (pci_addr_out) 2107 pci_free_consistent(ioc->pdev, blk_rq_bytes(req), pci_addr_out, 2108 pci_dma_out); 2109 2110 if (pci_addr_in) 2111 pci_free_consistent(ioc->pdev, blk_rq_bytes(rsp), pci_addr_in, 2112 pci_dma_in); 2113 2114 out: 2115 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 2116 mutex_unlock(&ioc->transport_cmds.mutex); 2117 return rc; 2118 } 2119 2120 struct sas_function_template mpt3sas_transport_functions = { 2121 .get_linkerrors = _transport_get_linkerrors, 2122 .get_enclosure_identifier = _transport_get_enclosure_identifier, 2123 .get_bay_identifier = _transport_get_bay_identifier, 2124 .phy_reset = _transport_phy_reset, 2125 .phy_enable = _transport_phy_enable, 2126 .set_phy_speed = _transport_phy_speed, 2127 .smp_handler = _transport_smp_handler, 2128 }; 2129 2130 struct scsi_transport_template *mpt3sas_transport_template; 2131