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_get_port_id_by_sas_phy - get zone's port id that Phy belong to 65 * @phy: sas_phy object 66 * 67 * Return Port number 68 */ 69 static inline u8 70 _transport_get_port_id_by_sas_phy(struct sas_phy *phy) 71 { 72 u8 port_id = 0xFF; 73 struct hba_port *port = phy->hostdata; 74 75 if (port) 76 port_id = port->port_id; 77 78 return port_id; 79 } 80 81 /** 82 * _transport_sas_node_find_by_sas_address - sas node search 83 * @ioc: per adapter object 84 * @sas_address: sas address of expander or sas host 85 * @port: hba port entry 86 * Context: Calling function should acquire ioc->sas_node_lock. 87 * 88 * Search for either hba phys or expander device based on handle, then returns 89 * the sas_node object. 90 */ 91 static struct _sas_node * 92 _transport_sas_node_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, 93 u64 sas_address, struct hba_port *port) 94 { 95 if (ioc->sas_hba.sas_address == sas_address) 96 return &ioc->sas_hba; 97 else 98 return mpt3sas_scsih_expander_find_by_sas_address(ioc, 99 sas_address, port); 100 } 101 102 /** 103 * _transport_get_port_id_by_rphy - Get Port number from rphy object 104 * @ioc: per adapter object 105 * @rphy: sas_rphy object 106 * 107 * Returns Port number. 108 */ 109 static u8 110 _transport_get_port_id_by_rphy(struct MPT3SAS_ADAPTER *ioc, 111 struct sas_rphy *rphy) 112 { 113 struct _sas_node *sas_expander; 114 struct _sas_device *sas_device; 115 unsigned long flags; 116 u8 port_id = 0xFF; 117 118 if (!rphy) 119 return port_id; 120 121 if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE || 122 rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) { 123 spin_lock_irqsave(&ioc->sas_node_lock, flags); 124 list_for_each_entry(sas_expander, 125 &ioc->sas_expander_list, list) { 126 if (sas_expander->rphy == rphy) { 127 port_id = sas_expander->port->port_id; 128 break; 129 } 130 } 131 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 132 } else if (rphy->identify.device_type == SAS_END_DEVICE) { 133 spin_lock_irqsave(&ioc->sas_device_lock, flags); 134 sas_device = __mpt3sas_get_sdev_by_rphy(ioc, rphy); 135 if (sas_device) { 136 port_id = sas_device->port->port_id; 137 sas_device_put(sas_device); 138 } 139 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 140 } 141 142 return port_id; 143 } 144 145 /** 146 * _transport_convert_phy_link_rate - 147 * @link_rate: link rate returned from mpt firmware 148 * 149 * Convert link_rate from mpi fusion into sas_transport form. 150 */ 151 static enum sas_linkrate 152 _transport_convert_phy_link_rate(u8 link_rate) 153 { 154 enum sas_linkrate rc; 155 156 switch (link_rate) { 157 case MPI2_SAS_NEG_LINK_RATE_1_5: 158 rc = SAS_LINK_RATE_1_5_GBPS; 159 break; 160 case MPI2_SAS_NEG_LINK_RATE_3_0: 161 rc = SAS_LINK_RATE_3_0_GBPS; 162 break; 163 case MPI2_SAS_NEG_LINK_RATE_6_0: 164 rc = SAS_LINK_RATE_6_0_GBPS; 165 break; 166 case MPI25_SAS_NEG_LINK_RATE_12_0: 167 rc = SAS_LINK_RATE_12_0_GBPS; 168 break; 169 case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED: 170 rc = SAS_PHY_DISABLED; 171 break; 172 case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED: 173 rc = SAS_LINK_RATE_FAILED; 174 break; 175 case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR: 176 rc = SAS_SATA_PORT_SELECTOR; 177 break; 178 case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS: 179 rc = SAS_PHY_RESET_IN_PROGRESS; 180 break; 181 182 default: 183 case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE: 184 case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE: 185 rc = SAS_LINK_RATE_UNKNOWN; 186 break; 187 } 188 return rc; 189 } 190 191 /** 192 * _transport_set_identify - set identify for phys and end devices 193 * @ioc: per adapter object 194 * @handle: device handle 195 * @identify: sas identify info 196 * 197 * Populates sas identify info. 198 * 199 * Return: 0 for success, non-zero for failure. 200 */ 201 static int 202 _transport_set_identify(struct MPT3SAS_ADAPTER *ioc, u16 handle, 203 struct sas_identify *identify) 204 { 205 Mpi2SasDevicePage0_t sas_device_pg0; 206 Mpi2ConfigReply_t mpi_reply; 207 u32 device_info; 208 u32 ioc_status; 209 210 if (ioc->shost_recovery || ioc->pci_error_recovery) { 211 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 212 return -EFAULT; 213 } 214 215 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 216 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 217 ioc_err(ioc, "failure at %s:%d/%s()!\n", 218 __FILE__, __LINE__, __func__); 219 return -ENXIO; 220 } 221 222 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 223 MPI2_IOCSTATUS_MASK; 224 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 225 ioc_err(ioc, "handle(0x%04x), ioc_status(0x%04x) failure at %s:%d/%s()!\n", 226 handle, ioc_status, __FILE__, __LINE__, __func__); 227 return -EIO; 228 } 229 230 memset(identify, 0, sizeof(struct sas_identify)); 231 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 232 233 /* sas_address */ 234 identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 235 236 /* phy number of the parent device this device is linked to */ 237 identify->phy_identifier = sas_device_pg0.PhyNum; 238 239 /* device_type */ 240 switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) { 241 case MPI2_SAS_DEVICE_INFO_NO_DEVICE: 242 identify->device_type = SAS_PHY_UNUSED; 243 break; 244 case MPI2_SAS_DEVICE_INFO_END_DEVICE: 245 identify->device_type = SAS_END_DEVICE; 246 break; 247 case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER: 248 identify->device_type = SAS_EDGE_EXPANDER_DEVICE; 249 break; 250 case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER: 251 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE; 252 break; 253 } 254 255 /* initiator_port_protocols */ 256 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR) 257 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP; 258 if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR) 259 identify->initiator_port_protocols |= SAS_PROTOCOL_STP; 260 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR) 261 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP; 262 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST) 263 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA; 264 265 /* target_port_protocols */ 266 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) 267 identify->target_port_protocols |= SAS_PROTOCOL_SSP; 268 if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) 269 identify->target_port_protocols |= SAS_PROTOCOL_STP; 270 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) 271 identify->target_port_protocols |= SAS_PROTOCOL_SMP; 272 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) 273 identify->target_port_protocols |= SAS_PROTOCOL_SATA; 274 275 return 0; 276 } 277 278 /** 279 * mpt3sas_transport_done - internal transport layer callback handler. 280 * @ioc: per adapter object 281 * @smid: system request message index 282 * @msix_index: MSIX table index supplied by the OS 283 * @reply: reply message frame(lower 32bit addr) 284 * 285 * Callback handler when sending internal generated transport cmds. 286 * The callback index passed is `ioc->transport_cb_idx` 287 * 288 * Return: 1 meaning mf should be freed from _base_interrupt 289 * 0 means the mf is freed from this function. 290 */ 291 u8 292 mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 293 u32 reply) 294 { 295 MPI2DefaultReply_t *mpi_reply; 296 297 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); 298 if (ioc->transport_cmds.status == MPT3_CMD_NOT_USED) 299 return 1; 300 if (ioc->transport_cmds.smid != smid) 301 return 1; 302 ioc->transport_cmds.status |= MPT3_CMD_COMPLETE; 303 if (mpi_reply) { 304 memcpy(ioc->transport_cmds.reply, mpi_reply, 305 mpi_reply->MsgLength*4); 306 ioc->transport_cmds.status |= MPT3_CMD_REPLY_VALID; 307 } 308 ioc->transport_cmds.status &= ~MPT3_CMD_PENDING; 309 complete(&ioc->transport_cmds.done); 310 return 1; 311 } 312 313 /* report manufacture request structure */ 314 struct rep_manu_request { 315 u8 smp_frame_type; 316 u8 function; 317 u8 reserved; 318 u8 request_length; 319 }; 320 321 /* report manufacture reply structure */ 322 struct rep_manu_reply { 323 u8 smp_frame_type; /* 0x41 */ 324 u8 function; /* 0x01 */ 325 u8 function_result; 326 u8 response_length; 327 u16 expander_change_count; 328 u8 reserved0[2]; 329 u8 sas_format; 330 u8 reserved2[3]; 331 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN]; 332 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN]; 333 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN]; 334 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN]; 335 u16 component_id; 336 u8 component_revision_id; 337 u8 reserved3; 338 u8 vendor_specific[8]; 339 }; 340 341 /** 342 * _transport_expander_report_manufacture - obtain SMP report_manufacture 343 * @ioc: per adapter object 344 * @sas_address: expander sas address 345 * @edev: the sas_expander_device object 346 * @port_id: Port ID number 347 * 348 * Fills in the sas_expander_device object when SMP port is created. 349 * 350 * Return: 0 for success, non-zero for failure. 351 */ 352 static int 353 _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, 354 u64 sas_address, struct sas_expander_device *edev, u8 port_id) 355 { 356 Mpi2SmpPassthroughRequest_t *mpi_request; 357 Mpi2SmpPassthroughReply_t *mpi_reply; 358 struct rep_manu_reply *manufacture_reply; 359 struct rep_manu_request *manufacture_request; 360 int rc; 361 u16 smid; 362 void *psge; 363 u8 issue_reset = 0; 364 void *data_out = NULL; 365 dma_addr_t data_out_dma; 366 dma_addr_t data_in_dma; 367 size_t data_in_sz; 368 size_t data_out_sz; 369 370 if (ioc->shost_recovery || ioc->pci_error_recovery) { 371 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 372 return -EFAULT; 373 } 374 375 mutex_lock(&ioc->transport_cmds.mutex); 376 377 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 378 ioc_err(ioc, "%s: transport_cmds in use\n", __func__); 379 rc = -EAGAIN; 380 goto out; 381 } 382 ioc->transport_cmds.status = MPT3_CMD_PENDING; 383 384 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 385 if (rc) 386 goto out; 387 388 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 389 if (!smid) { 390 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 391 rc = -EAGAIN; 392 goto out; 393 } 394 395 rc = 0; 396 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 397 ioc->transport_cmds.smid = smid; 398 399 data_out_sz = sizeof(struct rep_manu_request); 400 data_in_sz = sizeof(struct rep_manu_reply); 401 data_out = dma_alloc_coherent(&ioc->pdev->dev, data_out_sz + data_in_sz, 402 &data_out_dma, GFP_KERNEL); 403 if (!data_out) { 404 pr_err("failure at %s:%d/%s()!\n", __FILE__, 405 __LINE__, __func__); 406 rc = -ENOMEM; 407 mpt3sas_base_free_smid(ioc, smid); 408 goto out; 409 } 410 411 data_in_dma = data_out_dma + sizeof(struct rep_manu_request); 412 413 manufacture_request = data_out; 414 manufacture_request->smp_frame_type = 0x40; 415 manufacture_request->function = 1; 416 manufacture_request->reserved = 0; 417 manufacture_request->request_length = 0; 418 419 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 420 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 421 mpi_request->PhysicalPort = port_id; 422 mpi_request->SASAddress = cpu_to_le64(sas_address); 423 mpi_request->RequestDataLength = cpu_to_le16(data_out_sz); 424 psge = &mpi_request->SGL; 425 426 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma, 427 data_in_sz); 428 429 dtransportprintk(ioc, 430 ioc_info(ioc, "report_manufacture - send to sas_addr(0x%016llx)\n", 431 (u64)sas_address)); 432 init_completion(&ioc->transport_cmds.done); 433 ioc->put_smid_default(ioc, smid); 434 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 435 436 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 437 ioc_err(ioc, "%s: timeout\n", __func__); 438 _debug_dump_mf(mpi_request, 439 sizeof(Mpi2SmpPassthroughRequest_t)/4); 440 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 441 issue_reset = 1; 442 goto issue_host_reset; 443 } 444 445 dtransportprintk(ioc, ioc_info(ioc, "report_manufacture - complete\n")); 446 447 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 448 u8 *tmp; 449 450 mpi_reply = ioc->transport_cmds.reply; 451 452 dtransportprintk(ioc, 453 ioc_info(ioc, "report_manufacture - reply data transfer size(%d)\n", 454 le16_to_cpu(mpi_reply->ResponseDataLength))); 455 456 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 457 sizeof(struct rep_manu_reply)) 458 goto out; 459 460 manufacture_reply = data_out + sizeof(struct rep_manu_request); 461 strncpy(edev->vendor_id, manufacture_reply->vendor_id, 462 SAS_EXPANDER_VENDOR_ID_LEN); 463 strncpy(edev->product_id, manufacture_reply->product_id, 464 SAS_EXPANDER_PRODUCT_ID_LEN); 465 strncpy(edev->product_rev, manufacture_reply->product_rev, 466 SAS_EXPANDER_PRODUCT_REV_LEN); 467 edev->level = manufacture_reply->sas_format & 1; 468 if (edev->level) { 469 strncpy(edev->component_vendor_id, 470 manufacture_reply->component_vendor_id, 471 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN); 472 tmp = (u8 *)&manufacture_reply->component_id; 473 edev->component_id = tmp[0] << 8 | tmp[1]; 474 edev->component_revision_id = 475 manufacture_reply->component_revision_id; 476 } 477 } else 478 dtransportprintk(ioc, 479 ioc_info(ioc, "report_manufacture - no reply\n")); 480 481 issue_host_reset: 482 if (issue_reset) 483 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 484 out: 485 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 486 if (data_out) 487 dma_free_coherent(&ioc->pdev->dev, data_out_sz + data_in_sz, 488 data_out, data_out_dma); 489 490 mutex_unlock(&ioc->transport_cmds.mutex); 491 return rc; 492 } 493 494 495 /** 496 * _transport_delete_port - helper function to removing a port 497 * @ioc: per adapter object 498 * @mpt3sas_port: mpt3sas per port object 499 */ 500 static void 501 _transport_delete_port(struct MPT3SAS_ADAPTER *ioc, 502 struct _sas_port *mpt3sas_port) 503 { 504 u64 sas_address = mpt3sas_port->remote_identify.sas_address; 505 struct hba_port *port = mpt3sas_port->hba_port; 506 enum sas_device_type device_type = 507 mpt3sas_port->remote_identify.device_type; 508 509 dev_printk(KERN_INFO, &mpt3sas_port->port->dev, 510 "remove: sas_addr(0x%016llx)\n", 511 (unsigned long long) sas_address); 512 513 ioc->logging_level |= MPT_DEBUG_TRANSPORT; 514 if (device_type == SAS_END_DEVICE) 515 mpt3sas_device_remove_by_sas_address(ioc, 516 sas_address, port); 517 else if (device_type == SAS_EDGE_EXPANDER_DEVICE || 518 device_type == SAS_FANOUT_EXPANDER_DEVICE) 519 mpt3sas_expander_remove(ioc, sas_address, port); 520 ioc->logging_level &= ~MPT_DEBUG_TRANSPORT; 521 } 522 523 /** 524 * _transport_delete_phy - helper function to removing single phy from port 525 * @ioc: per adapter object 526 * @mpt3sas_port: mpt3sas per port object 527 * @mpt3sas_phy: mpt3sas per phy object 528 */ 529 static void 530 _transport_delete_phy(struct MPT3SAS_ADAPTER *ioc, 531 struct _sas_port *mpt3sas_port, struct _sas_phy *mpt3sas_phy) 532 { 533 u64 sas_address = mpt3sas_port->remote_identify.sas_address; 534 535 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 536 "remove: sas_addr(0x%016llx), phy(%d)\n", 537 (unsigned long long) sas_address, mpt3sas_phy->phy_id); 538 539 list_del(&mpt3sas_phy->port_siblings); 540 mpt3sas_port->num_phys--; 541 sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy); 542 mpt3sas_phy->phy_belongs_to_port = 0; 543 } 544 545 /** 546 * _transport_add_phy - helper function to adding single phy to port 547 * @ioc: per adapter object 548 * @mpt3sas_port: mpt3sas per port object 549 * @mpt3sas_phy: mpt3sas per phy object 550 */ 551 static void 552 _transport_add_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port, 553 struct _sas_phy *mpt3sas_phy) 554 { 555 u64 sas_address = mpt3sas_port->remote_identify.sas_address; 556 557 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 558 "add: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long) 559 sas_address, mpt3sas_phy->phy_id); 560 561 list_add_tail(&mpt3sas_phy->port_siblings, &mpt3sas_port->phy_list); 562 mpt3sas_port->num_phys++; 563 sas_port_add_phy(mpt3sas_port->port, mpt3sas_phy->phy); 564 mpt3sas_phy->phy_belongs_to_port = 1; 565 } 566 567 /** 568 * mpt3sas_transport_add_phy_to_an_existing_port - adding new phy to existing port 569 * @ioc: per adapter object 570 * @sas_node: sas node object (either expander or sas host) 571 * @mpt3sas_phy: mpt3sas per phy object 572 * @sas_address: sas address of device/expander were phy needs to be added to 573 * @port: hba port entry 574 */ 575 void 576 mpt3sas_transport_add_phy_to_an_existing_port(struct MPT3SAS_ADAPTER *ioc, 577 struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy, 578 u64 sas_address, struct hba_port *port) 579 { 580 struct _sas_port *mpt3sas_port; 581 struct _sas_phy *phy_srch; 582 583 if (mpt3sas_phy->phy_belongs_to_port == 1) 584 return; 585 586 if (!port) 587 return; 588 589 list_for_each_entry(mpt3sas_port, &sas_node->sas_port_list, 590 port_list) { 591 if (mpt3sas_port->remote_identify.sas_address != 592 sas_address) 593 continue; 594 if (mpt3sas_port->hba_port != port) 595 continue; 596 list_for_each_entry(phy_srch, &mpt3sas_port->phy_list, 597 port_siblings) { 598 if (phy_srch == mpt3sas_phy) 599 return; 600 } 601 _transport_add_phy(ioc, mpt3sas_port, mpt3sas_phy); 602 return; 603 } 604 605 } 606 607 /** 608 * mpt3sas_transport_del_phy_from_an_existing_port - delete phy from existing port 609 * @ioc: per adapter object 610 * @sas_node: sas node object (either expander or sas host) 611 * @mpt3sas_phy: mpt3sas per phy object 612 */ 613 void 614 mpt3sas_transport_del_phy_from_an_existing_port(struct MPT3SAS_ADAPTER *ioc, 615 struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy) 616 { 617 struct _sas_port *mpt3sas_port, *next; 618 struct _sas_phy *phy_srch; 619 620 if (mpt3sas_phy->phy_belongs_to_port == 0) 621 return; 622 623 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, 624 port_list) { 625 list_for_each_entry(phy_srch, &mpt3sas_port->phy_list, 626 port_siblings) { 627 if (phy_srch != mpt3sas_phy) 628 continue; 629 630 /* 631 * Don't delete port during host reset, 632 * just delete phy. 633 */ 634 if (mpt3sas_port->num_phys == 1 && !ioc->shost_recovery) 635 _transport_delete_port(ioc, mpt3sas_port); 636 else 637 _transport_delete_phy(ioc, mpt3sas_port, 638 mpt3sas_phy); 639 return; 640 } 641 } 642 } 643 644 /** 645 * _transport_sanity_check - sanity check when adding a new port 646 * @ioc: per adapter object 647 * @sas_node: sas node object (either expander or sas host) 648 * @sas_address: sas address of device being added 649 * @port: hba port entry 650 * 651 * See the explanation above from _transport_delete_duplicate_port 652 */ 653 static void 654 _transport_sanity_check(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node, 655 u64 sas_address, struct hba_port *port) 656 { 657 int i; 658 659 for (i = 0; i < sas_node->num_phys; i++) { 660 if (sas_node->phy[i].remote_identify.sas_address != sas_address) 661 continue; 662 if (sas_node->phy[i].port != port) 663 continue; 664 if (sas_node->phy[i].phy_belongs_to_port == 1) 665 mpt3sas_transport_del_phy_from_an_existing_port(ioc, 666 sas_node, &sas_node->phy[i]); 667 } 668 } 669 670 /** 671 * mpt3sas_transport_port_add - insert port to the list 672 * @ioc: per adapter object 673 * @handle: handle of attached device 674 * @sas_address: sas address of parent expander or sas host 675 * @hba_port: hba port entry 676 * Context: This function will acquire ioc->sas_node_lock. 677 * 678 * Adding new port object to the sas_node->sas_port_list. 679 * 680 * Return: mpt3sas_port. 681 */ 682 struct _sas_port * 683 mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle, 684 u64 sas_address, struct hba_port *hba_port) 685 { 686 struct _sas_phy *mpt3sas_phy, *next; 687 struct _sas_port *mpt3sas_port; 688 unsigned long flags; 689 struct _sas_node *sas_node; 690 struct sas_rphy *rphy; 691 struct _sas_device *sas_device = NULL; 692 int i; 693 struct sas_port *port; 694 struct virtual_phy *vphy = NULL; 695 696 if (!hba_port) { 697 ioc_err(ioc, "failure at %s:%d/%s()!\n", 698 __FILE__, __LINE__, __func__); 699 return NULL; 700 } 701 702 mpt3sas_port = kzalloc(sizeof(struct _sas_port), 703 GFP_KERNEL); 704 if (!mpt3sas_port) { 705 ioc_err(ioc, "failure at %s:%d/%s()!\n", 706 __FILE__, __LINE__, __func__); 707 return NULL; 708 } 709 710 INIT_LIST_HEAD(&mpt3sas_port->port_list); 711 INIT_LIST_HEAD(&mpt3sas_port->phy_list); 712 spin_lock_irqsave(&ioc->sas_node_lock, flags); 713 sas_node = _transport_sas_node_find_by_sas_address(ioc, 714 sas_address, hba_port); 715 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 716 717 if (!sas_node) { 718 ioc_err(ioc, "%s: Could not find parent sas_address(0x%016llx)!\n", 719 __func__, (u64)sas_address); 720 goto out_fail; 721 } 722 723 if ((_transport_set_identify(ioc, handle, 724 &mpt3sas_port->remote_identify))) { 725 ioc_err(ioc, "failure at %s:%d/%s()!\n", 726 __FILE__, __LINE__, __func__); 727 goto out_fail; 728 } 729 730 if (mpt3sas_port->remote_identify.device_type == SAS_PHY_UNUSED) { 731 ioc_err(ioc, "failure at %s:%d/%s()!\n", 732 __FILE__, __LINE__, __func__); 733 goto out_fail; 734 } 735 736 mpt3sas_port->hba_port = hba_port; 737 _transport_sanity_check(ioc, sas_node, 738 mpt3sas_port->remote_identify.sas_address, hba_port); 739 740 for (i = 0; i < sas_node->num_phys; i++) { 741 if (sas_node->phy[i].remote_identify.sas_address != 742 mpt3sas_port->remote_identify.sas_address) 743 continue; 744 if (sas_node->phy[i].port != hba_port) 745 continue; 746 list_add_tail(&sas_node->phy[i].port_siblings, 747 &mpt3sas_port->phy_list); 748 mpt3sas_port->num_phys++; 749 if (sas_node->handle <= ioc->sas_hba.num_phys) { 750 if (!sas_node->phy[i].hba_vphy) { 751 hba_port->phy_mask |= (1 << i); 752 continue; 753 } 754 755 vphy = mpt3sas_get_vphy_by_phy(ioc, hba_port, i); 756 if (!vphy) { 757 ioc_err(ioc, "failure at %s:%d/%s()!\n", 758 __FILE__, __LINE__, __func__); 759 goto out_fail; 760 } 761 } 762 } 763 764 if (!mpt3sas_port->num_phys) { 765 ioc_err(ioc, "failure at %s:%d/%s()!\n", 766 __FILE__, __LINE__, __func__); 767 goto out_fail; 768 } 769 770 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { 771 sas_device = mpt3sas_get_sdev_by_addr(ioc, 772 mpt3sas_port->remote_identify.sas_address, 773 mpt3sas_port->hba_port); 774 if (!sas_device) { 775 ioc_err(ioc, "failure at %s:%d/%s()!\n", 776 __FILE__, __LINE__, __func__); 777 goto out_fail; 778 } 779 sas_device->pend_sas_rphy_add = 1; 780 } 781 782 if (!sas_node->parent_dev) { 783 ioc_err(ioc, "failure at %s:%d/%s()!\n", 784 __FILE__, __LINE__, __func__); 785 goto out_fail; 786 } 787 port = sas_port_alloc_num(sas_node->parent_dev); 788 if ((sas_port_add(port))) { 789 ioc_err(ioc, "failure at %s:%d/%s()!\n", 790 __FILE__, __LINE__, __func__); 791 goto out_fail; 792 } 793 794 list_for_each_entry(mpt3sas_phy, &mpt3sas_port->phy_list, 795 port_siblings) { 796 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 797 dev_printk(KERN_INFO, &port->dev, 798 "add: handle(0x%04x), sas_addr(0x%016llx), phy(%d)\n", 799 handle, (unsigned long long) 800 mpt3sas_port->remote_identify.sas_address, 801 mpt3sas_phy->phy_id); 802 sas_port_add_phy(port, mpt3sas_phy->phy); 803 mpt3sas_phy->phy_belongs_to_port = 1; 804 mpt3sas_phy->port = hba_port; 805 } 806 807 mpt3sas_port->port = port; 808 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { 809 rphy = sas_end_device_alloc(port); 810 sas_device->rphy = rphy; 811 if (sas_node->handle <= ioc->sas_hba.num_phys) { 812 if (!vphy) 813 hba_port->sas_address = 814 sas_device->sas_address; 815 else 816 vphy->sas_address = 817 sas_device->sas_address; 818 } 819 } else { 820 rphy = sas_expander_alloc(port, 821 mpt3sas_port->remote_identify.device_type); 822 if (sas_node->handle <= ioc->sas_hba.num_phys) 823 hba_port->sas_address = 824 mpt3sas_port->remote_identify.sas_address; 825 } 826 827 rphy->identify = mpt3sas_port->remote_identify; 828 829 if ((sas_rphy_add(rphy))) { 830 ioc_err(ioc, "failure at %s:%d/%s()!\n", 831 __FILE__, __LINE__, __func__); 832 sas_rphy_free(rphy); 833 rphy = NULL; 834 } 835 836 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { 837 sas_device->pend_sas_rphy_add = 0; 838 sas_device_put(sas_device); 839 } 840 841 dev_info(&rphy->dev, 842 "add: handle(0x%04x), sas_addr(0x%016llx)\n", handle, 843 (unsigned long long)mpt3sas_port->remote_identify.sas_address); 844 845 mpt3sas_port->rphy = rphy; 846 spin_lock_irqsave(&ioc->sas_node_lock, flags); 847 list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list); 848 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 849 850 /* fill in report manufacture */ 851 if (mpt3sas_port->remote_identify.device_type == 852 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || 853 mpt3sas_port->remote_identify.device_type == 854 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) 855 _transport_expander_report_manufacture(ioc, 856 mpt3sas_port->remote_identify.sas_address, 857 rphy_to_expander_device(rphy), hba_port->port_id); 858 return mpt3sas_port; 859 860 out_fail: 861 list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list, 862 port_siblings) 863 list_del(&mpt3sas_phy->port_siblings); 864 kfree(mpt3sas_port); 865 return NULL; 866 } 867 868 /** 869 * mpt3sas_transport_port_remove - remove port from the list 870 * @ioc: per adapter object 871 * @sas_address: sas address of attached device 872 * @sas_address_parent: sas address of parent expander or sas host 873 * @port: hba port entry 874 * Context: This function will acquire ioc->sas_node_lock. 875 * 876 * Removing object and freeing associated memory from the 877 * ioc->sas_port_list. 878 */ 879 void 880 mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 881 u64 sas_address_parent, struct hba_port *port) 882 { 883 int i; 884 unsigned long flags; 885 struct _sas_port *mpt3sas_port, *next; 886 struct _sas_node *sas_node; 887 u8 found = 0; 888 struct _sas_phy *mpt3sas_phy, *next_phy; 889 struct hba_port *hba_port_next, *hba_port = NULL; 890 struct virtual_phy *vphy, *vphy_next = NULL; 891 892 if (!port) 893 return; 894 895 spin_lock_irqsave(&ioc->sas_node_lock, flags); 896 sas_node = _transport_sas_node_find_by_sas_address(ioc, 897 sas_address_parent, port); 898 if (!sas_node) { 899 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 900 return; 901 } 902 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, 903 port_list) { 904 if (mpt3sas_port->remote_identify.sas_address != sas_address) 905 continue; 906 if (mpt3sas_port->hba_port != port) 907 continue; 908 found = 1; 909 list_del(&mpt3sas_port->port_list); 910 goto out; 911 } 912 out: 913 if (!found) { 914 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 915 return; 916 } 917 918 if (sas_node->handle <= ioc->sas_hba.num_phys && 919 (ioc->multipath_on_hba)) { 920 if (port->vphys_mask) { 921 list_for_each_entry_safe(vphy, vphy_next, 922 &port->vphys_list, list) { 923 if (vphy->sas_address != sas_address) 924 continue; 925 ioc_info(ioc, 926 "remove vphy entry: %p of port:%p,from %d port's vphys list\n", 927 vphy, port, port->port_id); 928 port->vphys_mask &= ~vphy->phy_mask; 929 list_del(&vphy->list); 930 kfree(vphy); 931 } 932 } 933 934 list_for_each_entry_safe(hba_port, hba_port_next, 935 &ioc->port_table_list, list) { 936 if (hba_port != port) 937 continue; 938 /* 939 * Delete hba_port object if 940 * - hba_port object's sas address matches with current 941 * removed device's sas address and no vphy's 942 * associated with it. 943 * - Current removed device is a vSES device and 944 * none of the other direct attached device have 945 * this vSES device's port number (hence hba_port 946 * object sas_address field will be zero). 947 */ 948 if ((hba_port->sas_address == sas_address || 949 !hba_port->sas_address) && !hba_port->vphys_mask) { 950 ioc_info(ioc, 951 "remove hba_port entry: %p port: %d from hba_port list\n", 952 hba_port, hba_port->port_id); 953 list_del(&hba_port->list); 954 kfree(hba_port); 955 } else if (hba_port->sas_address == sas_address && 956 hba_port->vphys_mask) { 957 /* 958 * Current removed device is a non vSES device 959 * and a vSES device has the same port number 960 * as of current device's port number. Hence 961 * only clear the sas_address filed, don't 962 * delete the hba_port object. 963 */ 964 ioc_info(ioc, 965 "clearing sas_address from hba_port entry: %p port: %d from hba_port list\n", 966 hba_port, hba_port->port_id); 967 port->sas_address = 0; 968 } 969 break; 970 } 971 } 972 973 for (i = 0; i < sas_node->num_phys; i++) { 974 if (sas_node->phy[i].remote_identify.sas_address == sas_address) 975 memset(&sas_node->phy[i].remote_identify, 0 , 976 sizeof(struct sas_identify)); 977 } 978 979 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 980 981 list_for_each_entry_safe(mpt3sas_phy, next_phy, 982 &mpt3sas_port->phy_list, port_siblings) { 983 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 984 dev_printk(KERN_INFO, &mpt3sas_port->port->dev, 985 "remove: sas_addr(0x%016llx), phy(%d)\n", 986 (unsigned long long) 987 mpt3sas_port->remote_identify.sas_address, 988 mpt3sas_phy->phy_id); 989 mpt3sas_phy->phy_belongs_to_port = 0; 990 if (!ioc->remove_host) 991 sas_port_delete_phy(mpt3sas_port->port, 992 mpt3sas_phy->phy); 993 list_del(&mpt3sas_phy->port_siblings); 994 } 995 if (!ioc->remove_host) 996 sas_port_delete(mpt3sas_port->port); 997 ioc_info(ioc, "%s: removed: sas_addr(0x%016llx)\n", 998 __func__, (unsigned long long)sas_address); 999 kfree(mpt3sas_port); 1000 } 1001 1002 /** 1003 * mpt3sas_transport_add_host_phy - report sas_host phy to transport 1004 * @ioc: per adapter object 1005 * @mpt3sas_phy: mpt3sas per phy object 1006 * @phy_pg0: sas phy page 0 1007 * @parent_dev: parent device class object 1008 * 1009 * Return: 0 for success, non-zero for failure. 1010 */ 1011 int 1012 mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 1013 *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) 1014 { 1015 struct sas_phy *phy; 1016 int phy_index = mpt3sas_phy->phy_id; 1017 1018 1019 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 1020 phy = sas_phy_alloc(parent_dev, phy_index); 1021 if (!phy) { 1022 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1023 __FILE__, __LINE__, __func__); 1024 return -1; 1025 } 1026 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 1027 &mpt3sas_phy->identify))) { 1028 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1029 __FILE__, __LINE__, __func__); 1030 sas_phy_free(phy); 1031 return -1; 1032 } 1033 phy->identify = mpt3sas_phy->identify; 1034 mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); 1035 if (mpt3sas_phy->attached_handle) 1036 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 1037 &mpt3sas_phy->remote_identify); 1038 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 1039 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1040 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1041 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 1042 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 1043 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 1044 phy_pg0.HwLinkRate >> 4); 1045 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1046 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1047 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1048 phy_pg0.ProgrammedLinkRate >> 4); 1049 phy->hostdata = mpt3sas_phy->port; 1050 1051 if ((sas_phy_add(phy))) { 1052 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1053 __FILE__, __LINE__, __func__); 1054 sas_phy_free(phy); 1055 return -1; 1056 } 1057 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1058 dev_printk(KERN_INFO, &phy->dev, 1059 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 1060 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1061 mpt3sas_phy->handle, (unsigned long long) 1062 mpt3sas_phy->identify.sas_address, 1063 mpt3sas_phy->attached_handle, 1064 (unsigned long long) 1065 mpt3sas_phy->remote_identify.sas_address); 1066 mpt3sas_phy->phy = phy; 1067 return 0; 1068 } 1069 1070 1071 /** 1072 * mpt3sas_transport_add_expander_phy - report expander phy to transport 1073 * @ioc: per adapter object 1074 * @mpt3sas_phy: mpt3sas per phy object 1075 * @expander_pg1: expander page 1 1076 * @parent_dev: parent device class object 1077 * 1078 * Return: 0 for success, non-zero for failure. 1079 */ 1080 int 1081 mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 1082 *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1, 1083 struct device *parent_dev) 1084 { 1085 struct sas_phy *phy; 1086 int phy_index = mpt3sas_phy->phy_id; 1087 1088 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 1089 phy = sas_phy_alloc(parent_dev, phy_index); 1090 if (!phy) { 1091 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1092 __FILE__, __LINE__, __func__); 1093 return -1; 1094 } 1095 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 1096 &mpt3sas_phy->identify))) { 1097 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1098 __FILE__, __LINE__, __func__); 1099 sas_phy_free(phy); 1100 return -1; 1101 } 1102 phy->identify = mpt3sas_phy->identify; 1103 mpt3sas_phy->attached_handle = 1104 le16_to_cpu(expander_pg1.AttachedDevHandle); 1105 if (mpt3sas_phy->attached_handle) 1106 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 1107 &mpt3sas_phy->remote_identify); 1108 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 1109 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1110 expander_pg1.NegotiatedLinkRate & 1111 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1112 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 1113 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 1114 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 1115 expander_pg1.HwLinkRate >> 4); 1116 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1117 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1118 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1119 expander_pg1.ProgrammedLinkRate >> 4); 1120 phy->hostdata = mpt3sas_phy->port; 1121 1122 if ((sas_phy_add(phy))) { 1123 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1124 __FILE__, __LINE__, __func__); 1125 sas_phy_free(phy); 1126 return -1; 1127 } 1128 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1129 dev_printk(KERN_INFO, &phy->dev, 1130 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 1131 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1132 mpt3sas_phy->handle, (unsigned long long) 1133 mpt3sas_phy->identify.sas_address, 1134 mpt3sas_phy->attached_handle, 1135 (unsigned long long) 1136 mpt3sas_phy->remote_identify.sas_address); 1137 mpt3sas_phy->phy = phy; 1138 return 0; 1139 } 1140 1141 /** 1142 * mpt3sas_transport_update_links - refreshing phy link changes 1143 * @ioc: per adapter object 1144 * @sas_address: sas address of parent expander or sas host 1145 * @handle: attached device handle 1146 * @phy_number: phy number 1147 * @link_rate: new link rate 1148 * @port: hba port entry 1149 * 1150 * Return nothing. 1151 */ 1152 void 1153 mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc, 1154 u64 sas_address, u16 handle, u8 phy_number, u8 link_rate, 1155 struct hba_port *port) 1156 { 1157 unsigned long flags; 1158 struct _sas_node *sas_node; 1159 struct _sas_phy *mpt3sas_phy; 1160 struct hba_port *hba_port = NULL; 1161 1162 if (ioc->shost_recovery || ioc->pci_error_recovery) 1163 return; 1164 1165 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1166 sas_node = _transport_sas_node_find_by_sas_address(ioc, 1167 sas_address, port); 1168 if (!sas_node) { 1169 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1170 return; 1171 } 1172 1173 mpt3sas_phy = &sas_node->phy[phy_number]; 1174 mpt3sas_phy->attached_handle = handle; 1175 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1176 if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) { 1177 _transport_set_identify(ioc, handle, 1178 &mpt3sas_phy->remote_identify); 1179 if ((sas_node->handle <= ioc->sas_hba.num_phys) && 1180 (ioc->multipath_on_hba)) { 1181 list_for_each_entry(hba_port, 1182 &ioc->port_table_list, list) { 1183 if (hba_port->sas_address == sas_address && 1184 hba_port == port) 1185 hba_port->phy_mask |= 1186 (1 << mpt3sas_phy->phy_id); 1187 } 1188 } 1189 mpt3sas_transport_add_phy_to_an_existing_port(ioc, sas_node, 1190 mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address, 1191 port); 1192 } else 1193 memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct 1194 sas_identify)); 1195 1196 if (mpt3sas_phy->phy) 1197 mpt3sas_phy->phy->negotiated_linkrate = 1198 _transport_convert_phy_link_rate(link_rate); 1199 1200 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1201 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 1202 "refresh: parent sas_addr(0x%016llx),\n" 1203 "\tlink_rate(0x%02x), phy(%d)\n" 1204 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1205 (unsigned long long)sas_address, 1206 link_rate, phy_number, handle, (unsigned long long) 1207 mpt3sas_phy->remote_identify.sas_address); 1208 } 1209 1210 static inline void * 1211 phy_to_ioc(struct sas_phy *phy) 1212 { 1213 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 1214 return shost_priv(shost); 1215 } 1216 1217 static inline void * 1218 rphy_to_ioc(struct sas_rphy *rphy) 1219 { 1220 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); 1221 return shost_priv(shost); 1222 } 1223 1224 /* report phy error log structure */ 1225 struct phy_error_log_request { 1226 u8 smp_frame_type; /* 0x40 */ 1227 u8 function; /* 0x11 */ 1228 u8 allocated_response_length; 1229 u8 request_length; /* 02 */ 1230 u8 reserved_1[5]; 1231 u8 phy_identifier; 1232 u8 reserved_2[2]; 1233 }; 1234 1235 /* report phy error log reply structure */ 1236 struct phy_error_log_reply { 1237 u8 smp_frame_type; /* 0x41 */ 1238 u8 function; /* 0x11 */ 1239 u8 function_result; 1240 u8 response_length; 1241 __be16 expander_change_count; 1242 u8 reserved_1[3]; 1243 u8 phy_identifier; 1244 u8 reserved_2[2]; 1245 __be32 invalid_dword; 1246 __be32 running_disparity_error; 1247 __be32 loss_of_dword_sync; 1248 __be32 phy_reset_problem; 1249 }; 1250 1251 /** 1252 * _transport_get_expander_phy_error_log - return expander counters 1253 * @ioc: per adapter object 1254 * @phy: The sas phy object 1255 * 1256 * Return: 0 for success, non-zero for failure. 1257 * 1258 */ 1259 static int 1260 _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, 1261 struct sas_phy *phy) 1262 { 1263 Mpi2SmpPassthroughRequest_t *mpi_request; 1264 Mpi2SmpPassthroughReply_t *mpi_reply; 1265 struct phy_error_log_request *phy_error_log_request; 1266 struct phy_error_log_reply *phy_error_log_reply; 1267 int rc; 1268 u16 smid; 1269 void *psge; 1270 u8 issue_reset = 0; 1271 void *data_out = NULL; 1272 dma_addr_t data_out_dma; 1273 u32 sz; 1274 1275 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1276 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 1277 return -EFAULT; 1278 } 1279 1280 mutex_lock(&ioc->transport_cmds.mutex); 1281 1282 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1283 ioc_err(ioc, "%s: transport_cmds in use\n", __func__); 1284 rc = -EAGAIN; 1285 goto out; 1286 } 1287 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1288 1289 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 1290 if (rc) 1291 goto out; 1292 1293 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1294 if (!smid) { 1295 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 1296 rc = -EAGAIN; 1297 goto out; 1298 } 1299 1300 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1301 ioc->transport_cmds.smid = smid; 1302 1303 sz = sizeof(struct phy_error_log_request) + 1304 sizeof(struct phy_error_log_reply); 1305 data_out = dma_alloc_coherent(&ioc->pdev->dev, sz, &data_out_dma, 1306 GFP_KERNEL); 1307 if (!data_out) { 1308 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1309 __LINE__, __func__); 1310 rc = -ENOMEM; 1311 mpt3sas_base_free_smid(ioc, smid); 1312 goto out; 1313 } 1314 1315 rc = -EINVAL; 1316 memset(data_out, 0, sz); 1317 phy_error_log_request = data_out; 1318 phy_error_log_request->smp_frame_type = 0x40; 1319 phy_error_log_request->function = 0x11; 1320 phy_error_log_request->request_length = 2; 1321 phy_error_log_request->allocated_response_length = 0; 1322 phy_error_log_request->phy_identifier = phy->number; 1323 1324 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1325 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1326 mpi_request->PhysicalPort = _transport_get_port_id_by_sas_phy(phy); 1327 mpi_request->VF_ID = 0; /* TODO */ 1328 mpi_request->VP_ID = 0; 1329 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1330 mpi_request->RequestDataLength = 1331 cpu_to_le16(sizeof(struct phy_error_log_request)); 1332 psge = &mpi_request->SGL; 1333 1334 ioc->build_sg(ioc, psge, data_out_dma, 1335 sizeof(struct phy_error_log_request), 1336 data_out_dma + sizeof(struct phy_error_log_request), 1337 sizeof(struct phy_error_log_reply)); 1338 1339 dtransportprintk(ioc, 1340 ioc_info(ioc, "phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n", 1341 (u64)phy->identify.sas_address, 1342 phy->number)); 1343 init_completion(&ioc->transport_cmds.done); 1344 ioc->put_smid_default(ioc, smid); 1345 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 1346 1347 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1348 ioc_err(ioc, "%s: timeout\n", __func__); 1349 _debug_dump_mf(mpi_request, 1350 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1351 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1352 issue_reset = 1; 1353 goto issue_host_reset; 1354 } 1355 1356 dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - complete\n")); 1357 1358 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1359 1360 mpi_reply = ioc->transport_cmds.reply; 1361 1362 dtransportprintk(ioc, 1363 ioc_info(ioc, "phy_error_log - reply data transfer size(%d)\n", 1364 le16_to_cpu(mpi_reply->ResponseDataLength))); 1365 1366 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1367 sizeof(struct phy_error_log_reply)) 1368 goto out; 1369 1370 phy_error_log_reply = data_out + 1371 sizeof(struct phy_error_log_request); 1372 1373 dtransportprintk(ioc, 1374 ioc_info(ioc, "phy_error_log - function_result(%d)\n", 1375 phy_error_log_reply->function_result)); 1376 1377 phy->invalid_dword_count = 1378 be32_to_cpu(phy_error_log_reply->invalid_dword); 1379 phy->running_disparity_error_count = 1380 be32_to_cpu(phy_error_log_reply->running_disparity_error); 1381 phy->loss_of_dword_sync_count = 1382 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync); 1383 phy->phy_reset_problem_count = 1384 be32_to_cpu(phy_error_log_reply->phy_reset_problem); 1385 rc = 0; 1386 } else 1387 dtransportprintk(ioc, 1388 ioc_info(ioc, "phy_error_log - no reply\n")); 1389 1390 issue_host_reset: 1391 if (issue_reset) 1392 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1393 out: 1394 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1395 if (data_out) 1396 dma_free_coherent(&ioc->pdev->dev, sz, data_out, data_out_dma); 1397 1398 mutex_unlock(&ioc->transport_cmds.mutex); 1399 return rc; 1400 } 1401 1402 /** 1403 * _transport_get_linkerrors - return phy counters for both hba and expanders 1404 * @phy: The sas phy object 1405 * 1406 * Return: 0 for success, non-zero for failure. 1407 * 1408 */ 1409 static int 1410 _transport_get_linkerrors(struct sas_phy *phy) 1411 { 1412 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1413 unsigned long flags; 1414 Mpi2ConfigReply_t mpi_reply; 1415 Mpi2SasPhyPage1_t phy_pg1; 1416 struct hba_port *port = phy->hostdata; 1417 int port_id = port->port_id; 1418 1419 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1420 if (_transport_sas_node_find_by_sas_address(ioc, 1421 phy->identify.sas_address, 1422 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1423 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1424 return -EINVAL; 1425 } 1426 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1427 1428 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1429 return _transport_get_expander_phy_error_log(ioc, phy); 1430 1431 /* get hba phy error logs */ 1432 if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, 1433 phy->number))) { 1434 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1435 __FILE__, __LINE__, __func__); 1436 return -ENXIO; 1437 } 1438 1439 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1440 ioc_info(ioc, "phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n", 1441 phy->number, 1442 le16_to_cpu(mpi_reply.IOCStatus), 1443 le32_to_cpu(mpi_reply.IOCLogInfo)); 1444 1445 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount); 1446 phy->running_disparity_error_count = 1447 le32_to_cpu(phy_pg1.RunningDisparityErrorCount); 1448 phy->loss_of_dword_sync_count = 1449 le32_to_cpu(phy_pg1.LossDwordSynchCount); 1450 phy->phy_reset_problem_count = 1451 le32_to_cpu(phy_pg1.PhyResetProblemCount); 1452 return 0; 1453 } 1454 1455 /** 1456 * _transport_get_enclosure_identifier - 1457 * @rphy: The sas phy object 1458 * @identifier: ? 1459 * 1460 * Obtain the enclosure logical id for an expander. 1461 * Return: 0 for success, non-zero for failure. 1462 */ 1463 static int 1464 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) 1465 { 1466 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1467 struct _sas_device *sas_device; 1468 unsigned long flags; 1469 int rc; 1470 1471 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1472 sas_device = __mpt3sas_get_sdev_by_rphy(ioc, rphy); 1473 if (sas_device) { 1474 *identifier = sas_device->enclosure_logical_id; 1475 rc = 0; 1476 sas_device_put(sas_device); 1477 } else { 1478 *identifier = 0; 1479 rc = -ENXIO; 1480 } 1481 1482 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1483 return rc; 1484 } 1485 1486 /** 1487 * _transport_get_bay_identifier - 1488 * @rphy: The sas phy object 1489 * 1490 * Return: the slot id for a device that resides inside an enclosure. 1491 */ 1492 static int 1493 _transport_get_bay_identifier(struct sas_rphy *rphy) 1494 { 1495 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1496 struct _sas_device *sas_device; 1497 unsigned long flags; 1498 int rc; 1499 1500 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1501 sas_device = __mpt3sas_get_sdev_by_rphy(ioc, rphy); 1502 if (sas_device) { 1503 rc = sas_device->slot; 1504 sas_device_put(sas_device); 1505 } else { 1506 rc = -ENXIO; 1507 } 1508 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1509 return rc; 1510 } 1511 1512 /* phy control request structure */ 1513 struct phy_control_request { 1514 u8 smp_frame_type; /* 0x40 */ 1515 u8 function; /* 0x91 */ 1516 u8 allocated_response_length; 1517 u8 request_length; /* 0x09 */ 1518 u16 expander_change_count; 1519 u8 reserved_1[3]; 1520 u8 phy_identifier; 1521 u8 phy_operation; 1522 u8 reserved_2[13]; 1523 u64 attached_device_name; 1524 u8 programmed_min_physical_link_rate; 1525 u8 programmed_max_physical_link_rate; 1526 u8 reserved_3[6]; 1527 }; 1528 1529 /* phy control reply structure */ 1530 struct phy_control_reply { 1531 u8 smp_frame_type; /* 0x41 */ 1532 u8 function; /* 0x11 */ 1533 u8 function_result; 1534 u8 response_length; 1535 }; 1536 1537 #define SMP_PHY_CONTROL_LINK_RESET (0x01) 1538 #define SMP_PHY_CONTROL_HARD_RESET (0x02) 1539 #define SMP_PHY_CONTROL_DISABLE (0x03) 1540 1541 /** 1542 * _transport_expander_phy_control - expander phy control 1543 * @ioc: per adapter object 1544 * @phy: The sas phy object 1545 * @phy_operation: ? 1546 * 1547 * Return: 0 for success, non-zero for failure. 1548 * 1549 */ 1550 static int 1551 _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, 1552 struct sas_phy *phy, u8 phy_operation) 1553 { 1554 Mpi2SmpPassthroughRequest_t *mpi_request; 1555 Mpi2SmpPassthroughReply_t *mpi_reply; 1556 struct phy_control_request *phy_control_request; 1557 struct phy_control_reply *phy_control_reply; 1558 int rc; 1559 u16 smid; 1560 void *psge; 1561 u8 issue_reset = 0; 1562 void *data_out = NULL; 1563 dma_addr_t data_out_dma; 1564 u32 sz; 1565 1566 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1567 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 1568 return -EFAULT; 1569 } 1570 1571 mutex_lock(&ioc->transport_cmds.mutex); 1572 1573 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1574 ioc_err(ioc, "%s: transport_cmds in use\n", __func__); 1575 rc = -EAGAIN; 1576 goto out; 1577 } 1578 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1579 1580 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 1581 if (rc) 1582 goto out; 1583 1584 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1585 if (!smid) { 1586 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 1587 rc = -EAGAIN; 1588 goto out; 1589 } 1590 1591 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1592 ioc->transport_cmds.smid = smid; 1593 1594 sz = sizeof(struct phy_control_request) + 1595 sizeof(struct phy_control_reply); 1596 data_out = dma_alloc_coherent(&ioc->pdev->dev, sz, &data_out_dma, 1597 GFP_KERNEL); 1598 if (!data_out) { 1599 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1600 __LINE__, __func__); 1601 rc = -ENOMEM; 1602 mpt3sas_base_free_smid(ioc, smid); 1603 goto out; 1604 } 1605 1606 rc = -EINVAL; 1607 memset(data_out, 0, sz); 1608 phy_control_request = data_out; 1609 phy_control_request->smp_frame_type = 0x40; 1610 phy_control_request->function = 0x91; 1611 phy_control_request->request_length = 9; 1612 phy_control_request->allocated_response_length = 0; 1613 phy_control_request->phy_identifier = phy->number; 1614 phy_control_request->phy_operation = phy_operation; 1615 phy_control_request->programmed_min_physical_link_rate = 1616 phy->minimum_linkrate << 4; 1617 phy_control_request->programmed_max_physical_link_rate = 1618 phy->maximum_linkrate << 4; 1619 1620 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1621 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1622 mpi_request->PhysicalPort = _transport_get_port_id_by_sas_phy(phy); 1623 mpi_request->VF_ID = 0; /* TODO */ 1624 mpi_request->VP_ID = 0; 1625 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1626 mpi_request->RequestDataLength = 1627 cpu_to_le16(sizeof(struct phy_error_log_request)); 1628 psge = &mpi_request->SGL; 1629 1630 ioc->build_sg(ioc, psge, data_out_dma, 1631 sizeof(struct phy_control_request), 1632 data_out_dma + sizeof(struct phy_control_request), 1633 sizeof(struct phy_control_reply)); 1634 1635 dtransportprintk(ioc, 1636 ioc_info(ioc, "phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", 1637 (u64)phy->identify.sas_address, 1638 phy->number, phy_operation)); 1639 init_completion(&ioc->transport_cmds.done); 1640 ioc->put_smid_default(ioc, smid); 1641 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 1642 1643 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1644 ioc_err(ioc, "%s: timeout\n", __func__); 1645 _debug_dump_mf(mpi_request, 1646 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1647 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1648 issue_reset = 1; 1649 goto issue_host_reset; 1650 } 1651 1652 dtransportprintk(ioc, ioc_info(ioc, "phy_control - complete\n")); 1653 1654 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1655 1656 mpi_reply = ioc->transport_cmds.reply; 1657 1658 dtransportprintk(ioc, 1659 ioc_info(ioc, "phy_control - reply data transfer size(%d)\n", 1660 le16_to_cpu(mpi_reply->ResponseDataLength))); 1661 1662 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1663 sizeof(struct phy_control_reply)) 1664 goto out; 1665 1666 phy_control_reply = data_out + 1667 sizeof(struct phy_control_request); 1668 1669 dtransportprintk(ioc, 1670 ioc_info(ioc, "phy_control - function_result(%d)\n", 1671 phy_control_reply->function_result)); 1672 1673 rc = 0; 1674 } else 1675 dtransportprintk(ioc, 1676 ioc_info(ioc, "phy_control - no reply\n")); 1677 1678 issue_host_reset: 1679 if (issue_reset) 1680 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1681 out: 1682 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1683 if (data_out) 1684 dma_free_coherent(&ioc->pdev->dev, sz, data_out, 1685 data_out_dma); 1686 1687 mutex_unlock(&ioc->transport_cmds.mutex); 1688 return rc; 1689 } 1690 1691 /** 1692 * _transport_phy_reset - 1693 * @phy: The sas phy object 1694 * @hard_reset: 1695 * 1696 * Return: 0 for success, non-zero for failure. 1697 */ 1698 static int 1699 _transport_phy_reset(struct sas_phy *phy, int hard_reset) 1700 { 1701 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1702 Mpi2SasIoUnitControlReply_t mpi_reply; 1703 Mpi2SasIoUnitControlRequest_t mpi_request; 1704 struct hba_port *port = phy->hostdata; 1705 int port_id = port->port_id; 1706 unsigned long flags; 1707 1708 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1709 if (_transport_sas_node_find_by_sas_address(ioc, 1710 phy->identify.sas_address, 1711 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1712 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1713 return -EINVAL; 1714 } 1715 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1716 1717 /* handle expander phys */ 1718 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1719 return _transport_expander_phy_control(ioc, phy, 1720 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET : 1721 SMP_PHY_CONTROL_LINK_RESET); 1722 1723 /* handle hba phys */ 1724 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t)); 1725 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; 1726 mpi_request.Operation = hard_reset ? 1727 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET; 1728 mpi_request.PhyNum = phy->number; 1729 1730 if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { 1731 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1732 __FILE__, __LINE__, __func__); 1733 return -ENXIO; 1734 } 1735 1736 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1737 ioc_info(ioc, "phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n", 1738 phy->number, le16_to_cpu(mpi_reply.IOCStatus), 1739 le32_to_cpu(mpi_reply.IOCLogInfo)); 1740 1741 return 0; 1742 } 1743 1744 /** 1745 * _transport_phy_enable - enable/disable phys 1746 * @phy: The sas phy object 1747 * @enable: enable phy when true 1748 * 1749 * Only support sas_host direct attached phys. 1750 * Return: 0 for success, non-zero for failure. 1751 */ 1752 static int 1753 _transport_phy_enable(struct sas_phy *phy, int enable) 1754 { 1755 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1756 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1757 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; 1758 Mpi2ConfigReply_t mpi_reply; 1759 u16 ioc_status; 1760 u16 sz; 1761 int rc = 0; 1762 unsigned long flags; 1763 int i, discovery_active; 1764 struct hba_port *port = phy->hostdata; 1765 int port_id = port->port_id; 1766 1767 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1768 if (_transport_sas_node_find_by_sas_address(ioc, 1769 phy->identify.sas_address, 1770 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1771 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1772 return -EINVAL; 1773 } 1774 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1775 1776 /* handle expander phys */ 1777 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1778 return _transport_expander_phy_control(ioc, phy, 1779 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET : 1780 SMP_PHY_CONTROL_DISABLE); 1781 1782 /* handle hba phys */ 1783 1784 /* read sas_iounit page 0 */ 1785 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * 1786 sizeof(Mpi2SasIOUnit0PhyData_t)); 1787 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); 1788 if (!sas_iounit_pg0) { 1789 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1790 __FILE__, __LINE__, __func__); 1791 rc = -ENOMEM; 1792 goto out; 1793 } 1794 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, 1795 sas_iounit_pg0, sz))) { 1796 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1797 __FILE__, __LINE__, __func__); 1798 rc = -ENXIO; 1799 goto out; 1800 } 1801 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1802 MPI2_IOCSTATUS_MASK; 1803 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1804 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1805 __FILE__, __LINE__, __func__); 1806 rc = -EIO; 1807 goto out; 1808 } 1809 1810 /* unable to enable/disable phys when when discovery is active */ 1811 for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) { 1812 if (sas_iounit_pg0->PhyData[i].PortFlags & 1813 MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) { 1814 ioc_err(ioc, "discovery is active on port = %d, phy = %d: unable to enable/disable phys, try again later!\n", 1815 sas_iounit_pg0->PhyData[i].Port, i); 1816 discovery_active = 1; 1817 } 1818 } 1819 1820 if (discovery_active) { 1821 rc = -EAGAIN; 1822 goto out; 1823 } 1824 1825 /* read sas_iounit page 1 */ 1826 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1827 sizeof(Mpi2SasIOUnit1PhyData_t)); 1828 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1829 if (!sas_iounit_pg1) { 1830 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1831 __FILE__, __LINE__, __func__); 1832 rc = -ENOMEM; 1833 goto out; 1834 } 1835 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1836 sas_iounit_pg1, sz))) { 1837 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1838 __FILE__, __LINE__, __func__); 1839 rc = -ENXIO; 1840 goto out; 1841 } 1842 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1843 MPI2_IOCSTATUS_MASK; 1844 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1845 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1846 __FILE__, __LINE__, __func__); 1847 rc = -EIO; 1848 goto out; 1849 } 1850 1851 /* copy Port/PortFlags/PhyFlags from page 0 */ 1852 for (i = 0; i < ioc->sas_hba.num_phys ; i++) { 1853 sas_iounit_pg1->PhyData[i].Port = 1854 sas_iounit_pg0->PhyData[i].Port; 1855 sas_iounit_pg1->PhyData[i].PortFlags = 1856 (sas_iounit_pg0->PhyData[i].PortFlags & 1857 MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG); 1858 sas_iounit_pg1->PhyData[i].PhyFlags = 1859 (sas_iounit_pg0->PhyData[i].PhyFlags & 1860 (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED + 1861 MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED)); 1862 } 1863 1864 if (enable) 1865 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1866 &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1867 else 1868 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1869 |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1870 1871 mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz); 1872 1873 /* link reset */ 1874 if (enable) 1875 _transport_phy_reset(phy, 0); 1876 1877 out: 1878 kfree(sas_iounit_pg1); 1879 kfree(sas_iounit_pg0); 1880 return rc; 1881 } 1882 1883 /** 1884 * _transport_phy_speed - set phy min/max link rates 1885 * @phy: The sas phy object 1886 * @rates: rates defined in sas_phy_linkrates 1887 * 1888 * Only support sas_host direct attached phys. 1889 * 1890 * Return: 0 for success, non-zero for failure. 1891 */ 1892 static int 1893 _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) 1894 { 1895 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1896 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1897 Mpi2SasPhyPage0_t phy_pg0; 1898 Mpi2ConfigReply_t mpi_reply; 1899 u16 ioc_status; 1900 u16 sz; 1901 int i; 1902 int rc = 0; 1903 unsigned long flags; 1904 struct hba_port *port = phy->hostdata; 1905 int port_id = port->port_id; 1906 1907 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1908 if (_transport_sas_node_find_by_sas_address(ioc, 1909 phy->identify.sas_address, 1910 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1911 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1912 return -EINVAL; 1913 } 1914 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1915 1916 if (!rates->minimum_linkrate) 1917 rates->minimum_linkrate = phy->minimum_linkrate; 1918 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw) 1919 rates->minimum_linkrate = phy->minimum_linkrate_hw; 1920 1921 if (!rates->maximum_linkrate) 1922 rates->maximum_linkrate = phy->maximum_linkrate; 1923 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw) 1924 rates->maximum_linkrate = phy->maximum_linkrate_hw; 1925 1926 /* handle expander phys */ 1927 if (phy->identify.sas_address != ioc->sas_hba.sas_address) { 1928 phy->minimum_linkrate = rates->minimum_linkrate; 1929 phy->maximum_linkrate = rates->maximum_linkrate; 1930 return _transport_expander_phy_control(ioc, phy, 1931 SMP_PHY_CONTROL_LINK_RESET); 1932 } 1933 1934 /* handle hba phys */ 1935 1936 /* sas_iounit page 1 */ 1937 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1938 sizeof(Mpi2SasIOUnit1PhyData_t)); 1939 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1940 if (!sas_iounit_pg1) { 1941 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1942 __FILE__, __LINE__, __func__); 1943 rc = -ENOMEM; 1944 goto out; 1945 } 1946 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1947 sas_iounit_pg1, sz))) { 1948 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1949 __FILE__, __LINE__, __func__); 1950 rc = -ENXIO; 1951 goto out; 1952 } 1953 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1954 MPI2_IOCSTATUS_MASK; 1955 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1956 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1957 __FILE__, __LINE__, __func__); 1958 rc = -EIO; 1959 goto out; 1960 } 1961 1962 for (i = 0; i < ioc->sas_hba.num_phys; i++) { 1963 if (phy->number != i) { 1964 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1965 (ioc->sas_hba.phy[i].phy->minimum_linkrate + 1966 (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4)); 1967 } else { 1968 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1969 (rates->minimum_linkrate + 1970 (rates->maximum_linkrate << 4)); 1971 } 1972 } 1973 1974 if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 1975 sz)) { 1976 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1977 __FILE__, __LINE__, __func__); 1978 rc = -ENXIO; 1979 goto out; 1980 } 1981 1982 /* link reset */ 1983 _transport_phy_reset(phy, 0); 1984 1985 /* read phy page 0, then update the rates in the sas transport phy */ 1986 if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0, 1987 phy->number)) { 1988 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1989 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1990 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1991 phy_pg0.ProgrammedLinkRate >> 4); 1992 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1993 phy_pg0.NegotiatedLinkRate & 1994 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1995 } 1996 1997 out: 1998 kfree(sas_iounit_pg1); 1999 return rc; 2000 } 2001 2002 static int 2003 _transport_map_smp_buffer(struct device *dev, struct bsg_buffer *buf, 2004 dma_addr_t *dma_addr, size_t *dma_len, void **p) 2005 { 2006 /* Check if the request is split across multiple segments */ 2007 if (buf->sg_cnt > 1) { 2008 *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr, 2009 GFP_KERNEL); 2010 if (!*p) 2011 return -ENOMEM; 2012 *dma_len = buf->payload_len; 2013 } else { 2014 if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL)) 2015 return -ENOMEM; 2016 *dma_addr = sg_dma_address(buf->sg_list); 2017 *dma_len = sg_dma_len(buf->sg_list); 2018 *p = NULL; 2019 } 2020 2021 return 0; 2022 } 2023 2024 static void 2025 _transport_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf, 2026 dma_addr_t dma_addr, void *p) 2027 { 2028 if (p) 2029 dma_free_coherent(dev, buf->payload_len, p, dma_addr); 2030 else 2031 dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL); 2032 } 2033 2034 /** 2035 * _transport_smp_handler - transport portal for smp passthru 2036 * @job: ? 2037 * @shost: shost object 2038 * @rphy: sas transport rphy object 2039 * 2040 * This used primarily for smp_utils. 2041 * Example: 2042 * smp_rep_general /sys/class/bsg/expander-5:0 2043 */ 2044 static void 2045 _transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost, 2046 struct sas_rphy *rphy) 2047 { 2048 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2049 Mpi2SmpPassthroughRequest_t *mpi_request; 2050 Mpi2SmpPassthroughReply_t *mpi_reply; 2051 int rc; 2052 u16 smid; 2053 void *psge; 2054 dma_addr_t dma_addr_in; 2055 dma_addr_t dma_addr_out; 2056 void *addr_in = NULL; 2057 void *addr_out = NULL; 2058 size_t dma_len_in; 2059 size_t dma_len_out; 2060 unsigned int reslen = 0; 2061 2062 if (ioc->shost_recovery || ioc->pci_error_recovery) { 2063 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 2064 rc = -EFAULT; 2065 goto job_done; 2066 } 2067 2068 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); 2069 if (rc) 2070 goto job_done; 2071 2072 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 2073 ioc_err(ioc, "%s: transport_cmds in use\n", 2074 __func__); 2075 rc = -EAGAIN; 2076 goto out; 2077 } 2078 ioc->transport_cmds.status = MPT3_CMD_PENDING; 2079 2080 rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->request_payload, 2081 &dma_addr_out, &dma_len_out, &addr_out); 2082 if (rc) 2083 goto out; 2084 if (addr_out) { 2085 sg_copy_to_buffer(job->request_payload.sg_list, 2086 job->request_payload.sg_cnt, addr_out, 2087 job->request_payload.payload_len); 2088 } 2089 2090 rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->reply_payload, 2091 &dma_addr_in, &dma_len_in, &addr_in); 2092 if (rc) 2093 goto unmap_out; 2094 2095 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 2096 if (rc) 2097 goto unmap_in; 2098 2099 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 2100 if (!smid) { 2101 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 2102 rc = -EAGAIN; 2103 goto unmap_in; 2104 } 2105 2106 rc = 0; 2107 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2108 ioc->transport_cmds.smid = smid; 2109 2110 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 2111 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 2112 mpi_request->PhysicalPort = _transport_get_port_id_by_rphy(ioc, rphy); 2113 mpi_request->SASAddress = (rphy) ? 2114 cpu_to_le64(rphy->identify.sas_address) : 2115 cpu_to_le64(ioc->sas_hba.sas_address); 2116 mpi_request->RequestDataLength = cpu_to_le16(dma_len_out - 4); 2117 psge = &mpi_request->SGL; 2118 2119 ioc->build_sg(ioc, psge, dma_addr_out, dma_len_out - 4, dma_addr_in, 2120 dma_len_in - 4); 2121 2122 dtransportprintk(ioc, 2123 ioc_info(ioc, "%s: sending smp request\n", __func__)); 2124 2125 init_completion(&ioc->transport_cmds.done); 2126 ioc->put_smid_default(ioc, smid); 2127 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 2128 2129 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 2130 ioc_err(ioc, "%s: timeout\n", __func__); 2131 _debug_dump_mf(mpi_request, 2132 sizeof(Mpi2SmpPassthroughRequest_t)/4); 2133 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) { 2134 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 2135 rc = -ETIMEDOUT; 2136 goto unmap_in; 2137 } 2138 } 2139 2140 dtransportprintk(ioc, ioc_info(ioc, "%s - complete\n", __func__)); 2141 2142 if (!(ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID)) { 2143 dtransportprintk(ioc, 2144 ioc_info(ioc, "%s: no reply\n", __func__)); 2145 rc = -ENXIO; 2146 goto unmap_in; 2147 } 2148 2149 mpi_reply = ioc->transport_cmds.reply; 2150 2151 dtransportprintk(ioc, 2152 ioc_info(ioc, "%s: reply data transfer size(%d)\n", 2153 __func__, 2154 le16_to_cpu(mpi_reply->ResponseDataLength))); 2155 2156 memcpy(job->reply, mpi_reply, sizeof(*mpi_reply)); 2157 job->reply_len = sizeof(*mpi_reply); 2158 reslen = le16_to_cpu(mpi_reply->ResponseDataLength); 2159 2160 if (addr_in) { 2161 sg_copy_to_buffer(job->reply_payload.sg_list, 2162 job->reply_payload.sg_cnt, addr_in, 2163 job->reply_payload.payload_len); 2164 } 2165 2166 rc = 0; 2167 unmap_in: 2168 _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->reply_payload, 2169 dma_addr_in, addr_in); 2170 unmap_out: 2171 _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->request_payload, 2172 dma_addr_out, addr_out); 2173 out: 2174 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 2175 mutex_unlock(&ioc->transport_cmds.mutex); 2176 job_done: 2177 bsg_job_done(job, rc, reslen); 2178 } 2179 2180 struct sas_function_template mpt3sas_transport_functions = { 2181 .get_linkerrors = _transport_get_linkerrors, 2182 .get_enclosure_identifier = _transport_get_enclosure_identifier, 2183 .get_bay_identifier = _transport_get_bay_identifier, 2184 .phy_reset = _transport_phy_reset, 2185 .phy_enable = _transport_phy_enable, 2186 .set_phy_speed = _transport_phy_speed, 2187 .smp_handler = _transport_smp_handler, 2188 }; 2189 2190 struct scsi_transport_template *mpt3sas_transport_template; 2191