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 } 833 834 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { 835 sas_device->pend_sas_rphy_add = 0; 836 sas_device_put(sas_device); 837 } 838 839 dev_info(&rphy->dev, 840 "add: handle(0x%04x), sas_addr(0x%016llx)\n", handle, 841 (unsigned long long)mpt3sas_port->remote_identify.sas_address); 842 843 mpt3sas_port->rphy = rphy; 844 spin_lock_irqsave(&ioc->sas_node_lock, flags); 845 list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list); 846 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 847 848 /* fill in report manufacture */ 849 if (mpt3sas_port->remote_identify.device_type == 850 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || 851 mpt3sas_port->remote_identify.device_type == 852 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) 853 _transport_expander_report_manufacture(ioc, 854 mpt3sas_port->remote_identify.sas_address, 855 rphy_to_expander_device(rphy), hba_port->port_id); 856 return mpt3sas_port; 857 858 out_fail: 859 list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list, 860 port_siblings) 861 list_del(&mpt3sas_phy->port_siblings); 862 kfree(mpt3sas_port); 863 return NULL; 864 } 865 866 /** 867 * mpt3sas_transport_port_remove - remove port from the list 868 * @ioc: per adapter object 869 * @sas_address: sas address of attached device 870 * @sas_address_parent: sas address of parent expander or sas host 871 * @port: hba port entry 872 * Context: This function will acquire ioc->sas_node_lock. 873 * 874 * Removing object and freeing associated memory from the 875 * ioc->sas_port_list. 876 */ 877 void 878 mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 879 u64 sas_address_parent, struct hba_port *port) 880 { 881 int i; 882 unsigned long flags; 883 struct _sas_port *mpt3sas_port, *next; 884 struct _sas_node *sas_node; 885 u8 found = 0; 886 struct _sas_phy *mpt3sas_phy, *next_phy; 887 struct hba_port *hba_port_next, *hba_port = NULL; 888 struct virtual_phy *vphy, *vphy_next = NULL; 889 890 if (!port) 891 return; 892 893 spin_lock_irqsave(&ioc->sas_node_lock, flags); 894 sas_node = _transport_sas_node_find_by_sas_address(ioc, 895 sas_address_parent, port); 896 if (!sas_node) { 897 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 898 return; 899 } 900 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list, 901 port_list) { 902 if (mpt3sas_port->remote_identify.sas_address != sas_address) 903 continue; 904 if (mpt3sas_port->hba_port != port) 905 continue; 906 found = 1; 907 list_del(&mpt3sas_port->port_list); 908 goto out; 909 } 910 out: 911 if (!found) { 912 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 913 return; 914 } 915 916 if (sas_node->handle <= ioc->sas_hba.num_phys && 917 (ioc->multipath_on_hba)) { 918 if (port->vphys_mask) { 919 list_for_each_entry_safe(vphy, vphy_next, 920 &port->vphys_list, list) { 921 if (vphy->sas_address != sas_address) 922 continue; 923 ioc_info(ioc, 924 "remove vphy entry: %p of port:%p,from %d port's vphys list\n", 925 vphy, port, port->port_id); 926 port->vphys_mask &= ~vphy->phy_mask; 927 list_del(&vphy->list); 928 kfree(vphy); 929 } 930 } 931 932 list_for_each_entry_safe(hba_port, hba_port_next, 933 &ioc->port_table_list, list) { 934 if (hba_port != port) 935 continue; 936 /* 937 * Delete hba_port object if 938 * - hba_port object's sas address matches with current 939 * removed device's sas address and no vphy's 940 * associated with it. 941 * - Current removed device is a vSES device and 942 * none of the other direct attached device have 943 * this vSES device's port number (hence hba_port 944 * object sas_address field will be zero). 945 */ 946 if ((hba_port->sas_address == sas_address || 947 !hba_port->sas_address) && !hba_port->vphys_mask) { 948 ioc_info(ioc, 949 "remove hba_port entry: %p port: %d from hba_port list\n", 950 hba_port, hba_port->port_id); 951 list_del(&hba_port->list); 952 kfree(hba_port); 953 } else if (hba_port->sas_address == sas_address && 954 hba_port->vphys_mask) { 955 /* 956 * Current removed device is a non vSES device 957 * and a vSES device has the same port number 958 * as of current device's port number. Hence 959 * only clear the sas_address filed, don't 960 * delete the hba_port object. 961 */ 962 ioc_info(ioc, 963 "clearing sas_address from hba_port entry: %p port: %d from hba_port list\n", 964 hba_port, hba_port->port_id); 965 port->sas_address = 0; 966 } 967 break; 968 } 969 } 970 971 for (i = 0; i < sas_node->num_phys; i++) { 972 if (sas_node->phy[i].remote_identify.sas_address == sas_address) 973 memset(&sas_node->phy[i].remote_identify, 0 , 974 sizeof(struct sas_identify)); 975 } 976 977 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 978 979 list_for_each_entry_safe(mpt3sas_phy, next_phy, 980 &mpt3sas_port->phy_list, port_siblings) { 981 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 982 dev_printk(KERN_INFO, &mpt3sas_port->port->dev, 983 "remove: sas_addr(0x%016llx), phy(%d)\n", 984 (unsigned long long) 985 mpt3sas_port->remote_identify.sas_address, 986 mpt3sas_phy->phy_id); 987 mpt3sas_phy->phy_belongs_to_port = 0; 988 if (!ioc->remove_host) 989 sas_port_delete_phy(mpt3sas_port->port, 990 mpt3sas_phy->phy); 991 list_del(&mpt3sas_phy->port_siblings); 992 } 993 if (!ioc->remove_host) 994 sas_port_delete(mpt3sas_port->port); 995 ioc_info(ioc, "%s: removed: sas_addr(0x%016llx)\n", 996 __func__, (unsigned long long)sas_address); 997 kfree(mpt3sas_port); 998 } 999 1000 /** 1001 * mpt3sas_transport_add_host_phy - report sas_host phy to transport 1002 * @ioc: per adapter object 1003 * @mpt3sas_phy: mpt3sas per phy object 1004 * @phy_pg0: sas phy page 0 1005 * @parent_dev: parent device class object 1006 * 1007 * Return: 0 for success, non-zero for failure. 1008 */ 1009 int 1010 mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 1011 *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) 1012 { 1013 struct sas_phy *phy; 1014 int phy_index = mpt3sas_phy->phy_id; 1015 1016 1017 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 1018 phy = sas_phy_alloc(parent_dev, phy_index); 1019 if (!phy) { 1020 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1021 __FILE__, __LINE__, __func__); 1022 return -1; 1023 } 1024 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 1025 &mpt3sas_phy->identify))) { 1026 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1027 __FILE__, __LINE__, __func__); 1028 sas_phy_free(phy); 1029 return -1; 1030 } 1031 phy->identify = mpt3sas_phy->identify; 1032 mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); 1033 if (mpt3sas_phy->attached_handle) 1034 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 1035 &mpt3sas_phy->remote_identify); 1036 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 1037 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1038 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1039 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 1040 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 1041 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 1042 phy_pg0.HwLinkRate >> 4); 1043 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1044 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1045 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1046 phy_pg0.ProgrammedLinkRate >> 4); 1047 phy->hostdata = mpt3sas_phy->port; 1048 1049 if ((sas_phy_add(phy))) { 1050 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1051 __FILE__, __LINE__, __func__); 1052 sas_phy_free(phy); 1053 return -1; 1054 } 1055 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1056 dev_printk(KERN_INFO, &phy->dev, 1057 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 1058 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1059 mpt3sas_phy->handle, (unsigned long long) 1060 mpt3sas_phy->identify.sas_address, 1061 mpt3sas_phy->attached_handle, 1062 (unsigned long long) 1063 mpt3sas_phy->remote_identify.sas_address); 1064 mpt3sas_phy->phy = phy; 1065 return 0; 1066 } 1067 1068 1069 /** 1070 * mpt3sas_transport_add_expander_phy - report expander phy to transport 1071 * @ioc: per adapter object 1072 * @mpt3sas_phy: mpt3sas per phy object 1073 * @expander_pg1: expander page 1 1074 * @parent_dev: parent device class object 1075 * 1076 * Return: 0 for success, non-zero for failure. 1077 */ 1078 int 1079 mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy 1080 *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1, 1081 struct device *parent_dev) 1082 { 1083 struct sas_phy *phy; 1084 int phy_index = mpt3sas_phy->phy_id; 1085 1086 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings); 1087 phy = sas_phy_alloc(parent_dev, phy_index); 1088 if (!phy) { 1089 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1090 __FILE__, __LINE__, __func__); 1091 return -1; 1092 } 1093 if ((_transport_set_identify(ioc, mpt3sas_phy->handle, 1094 &mpt3sas_phy->identify))) { 1095 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1096 __FILE__, __LINE__, __func__); 1097 sas_phy_free(phy); 1098 return -1; 1099 } 1100 phy->identify = mpt3sas_phy->identify; 1101 mpt3sas_phy->attached_handle = 1102 le16_to_cpu(expander_pg1.AttachedDevHandle); 1103 if (mpt3sas_phy->attached_handle) 1104 _transport_set_identify(ioc, mpt3sas_phy->attached_handle, 1105 &mpt3sas_phy->remote_identify); 1106 phy->identify.phy_identifier = mpt3sas_phy->phy_id; 1107 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1108 expander_pg1.NegotiatedLinkRate & 1109 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1110 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( 1111 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); 1112 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( 1113 expander_pg1.HwLinkRate >> 4); 1114 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1115 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1116 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1117 expander_pg1.ProgrammedLinkRate >> 4); 1118 phy->hostdata = mpt3sas_phy->port; 1119 1120 if ((sas_phy_add(phy))) { 1121 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1122 __FILE__, __LINE__, __func__); 1123 sas_phy_free(phy); 1124 return -1; 1125 } 1126 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1127 dev_printk(KERN_INFO, &phy->dev, 1128 "add: handle(0x%04x), sas_addr(0x%016llx)\n" 1129 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1130 mpt3sas_phy->handle, (unsigned long long) 1131 mpt3sas_phy->identify.sas_address, 1132 mpt3sas_phy->attached_handle, 1133 (unsigned long long) 1134 mpt3sas_phy->remote_identify.sas_address); 1135 mpt3sas_phy->phy = phy; 1136 return 0; 1137 } 1138 1139 /** 1140 * mpt3sas_transport_update_links - refreshing phy link changes 1141 * @ioc: per adapter object 1142 * @sas_address: sas address of parent expander or sas host 1143 * @handle: attached device handle 1144 * @phy_number: phy number 1145 * @link_rate: new link rate 1146 * @port: hba port entry 1147 * 1148 * Return nothing. 1149 */ 1150 void 1151 mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc, 1152 u64 sas_address, u16 handle, u8 phy_number, u8 link_rate, 1153 struct hba_port *port) 1154 { 1155 unsigned long flags; 1156 struct _sas_node *sas_node; 1157 struct _sas_phy *mpt3sas_phy; 1158 struct hba_port *hba_port = NULL; 1159 1160 if (ioc->shost_recovery || ioc->pci_error_recovery) 1161 return; 1162 1163 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1164 sas_node = _transport_sas_node_find_by_sas_address(ioc, 1165 sas_address, port); 1166 if (!sas_node) { 1167 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1168 return; 1169 } 1170 1171 mpt3sas_phy = &sas_node->phy[phy_number]; 1172 mpt3sas_phy->attached_handle = handle; 1173 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1174 if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) { 1175 _transport_set_identify(ioc, handle, 1176 &mpt3sas_phy->remote_identify); 1177 if ((sas_node->handle <= ioc->sas_hba.num_phys) && 1178 (ioc->multipath_on_hba)) { 1179 list_for_each_entry(hba_port, 1180 &ioc->port_table_list, list) { 1181 if (hba_port->sas_address == sas_address && 1182 hba_port == port) 1183 hba_port->phy_mask |= 1184 (1 << mpt3sas_phy->phy_id); 1185 } 1186 } 1187 mpt3sas_transport_add_phy_to_an_existing_port(ioc, sas_node, 1188 mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address, 1189 port); 1190 } else 1191 memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct 1192 sas_identify)); 1193 1194 if (mpt3sas_phy->phy) 1195 mpt3sas_phy->phy->negotiated_linkrate = 1196 _transport_convert_phy_link_rate(link_rate); 1197 1198 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 1199 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev, 1200 "refresh: parent sas_addr(0x%016llx),\n" 1201 "\tlink_rate(0x%02x), phy(%d)\n" 1202 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", 1203 (unsigned long long)sas_address, 1204 link_rate, phy_number, handle, (unsigned long long) 1205 mpt3sas_phy->remote_identify.sas_address); 1206 } 1207 1208 static inline void * 1209 phy_to_ioc(struct sas_phy *phy) 1210 { 1211 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 1212 return shost_priv(shost); 1213 } 1214 1215 static inline void * 1216 rphy_to_ioc(struct sas_rphy *rphy) 1217 { 1218 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); 1219 return shost_priv(shost); 1220 } 1221 1222 /* report phy error log structure */ 1223 struct phy_error_log_request { 1224 u8 smp_frame_type; /* 0x40 */ 1225 u8 function; /* 0x11 */ 1226 u8 allocated_response_length; 1227 u8 request_length; /* 02 */ 1228 u8 reserved_1[5]; 1229 u8 phy_identifier; 1230 u8 reserved_2[2]; 1231 }; 1232 1233 /* report phy error log reply structure */ 1234 struct phy_error_log_reply { 1235 u8 smp_frame_type; /* 0x41 */ 1236 u8 function; /* 0x11 */ 1237 u8 function_result; 1238 u8 response_length; 1239 __be16 expander_change_count; 1240 u8 reserved_1[3]; 1241 u8 phy_identifier; 1242 u8 reserved_2[2]; 1243 __be32 invalid_dword; 1244 __be32 running_disparity_error; 1245 __be32 loss_of_dword_sync; 1246 __be32 phy_reset_problem; 1247 }; 1248 1249 /** 1250 * _transport_get_expander_phy_error_log - return expander counters 1251 * @ioc: per adapter object 1252 * @phy: The sas phy object 1253 * 1254 * Return: 0 for success, non-zero for failure. 1255 * 1256 */ 1257 static int 1258 _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, 1259 struct sas_phy *phy) 1260 { 1261 Mpi2SmpPassthroughRequest_t *mpi_request; 1262 Mpi2SmpPassthroughReply_t *mpi_reply; 1263 struct phy_error_log_request *phy_error_log_request; 1264 struct phy_error_log_reply *phy_error_log_reply; 1265 int rc; 1266 u16 smid; 1267 void *psge; 1268 u8 issue_reset = 0; 1269 void *data_out = NULL; 1270 dma_addr_t data_out_dma; 1271 u32 sz; 1272 1273 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1274 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 1275 return -EFAULT; 1276 } 1277 1278 mutex_lock(&ioc->transport_cmds.mutex); 1279 1280 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1281 ioc_err(ioc, "%s: transport_cmds in use\n", __func__); 1282 rc = -EAGAIN; 1283 goto out; 1284 } 1285 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1286 1287 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 1288 if (rc) 1289 goto out; 1290 1291 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1292 if (!smid) { 1293 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 1294 rc = -EAGAIN; 1295 goto out; 1296 } 1297 1298 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1299 ioc->transport_cmds.smid = smid; 1300 1301 sz = sizeof(struct phy_error_log_request) + 1302 sizeof(struct phy_error_log_reply); 1303 data_out = dma_alloc_coherent(&ioc->pdev->dev, sz, &data_out_dma, 1304 GFP_KERNEL); 1305 if (!data_out) { 1306 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1307 __LINE__, __func__); 1308 rc = -ENOMEM; 1309 mpt3sas_base_free_smid(ioc, smid); 1310 goto out; 1311 } 1312 1313 rc = -EINVAL; 1314 memset(data_out, 0, sz); 1315 phy_error_log_request = data_out; 1316 phy_error_log_request->smp_frame_type = 0x40; 1317 phy_error_log_request->function = 0x11; 1318 phy_error_log_request->request_length = 2; 1319 phy_error_log_request->allocated_response_length = 0; 1320 phy_error_log_request->phy_identifier = phy->number; 1321 1322 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1323 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1324 mpi_request->PhysicalPort = _transport_get_port_id_by_sas_phy(phy); 1325 mpi_request->VF_ID = 0; /* TODO */ 1326 mpi_request->VP_ID = 0; 1327 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1328 mpi_request->RequestDataLength = 1329 cpu_to_le16(sizeof(struct phy_error_log_request)); 1330 psge = &mpi_request->SGL; 1331 1332 ioc->build_sg(ioc, psge, data_out_dma, 1333 sizeof(struct phy_error_log_request), 1334 data_out_dma + sizeof(struct phy_error_log_request), 1335 sizeof(struct phy_error_log_reply)); 1336 1337 dtransportprintk(ioc, 1338 ioc_info(ioc, "phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n", 1339 (u64)phy->identify.sas_address, 1340 phy->number)); 1341 init_completion(&ioc->transport_cmds.done); 1342 ioc->put_smid_default(ioc, smid); 1343 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 1344 1345 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1346 ioc_err(ioc, "%s: timeout\n", __func__); 1347 _debug_dump_mf(mpi_request, 1348 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1349 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1350 issue_reset = 1; 1351 goto issue_host_reset; 1352 } 1353 1354 dtransportprintk(ioc, ioc_info(ioc, "phy_error_log - complete\n")); 1355 1356 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1357 1358 mpi_reply = ioc->transport_cmds.reply; 1359 1360 dtransportprintk(ioc, 1361 ioc_info(ioc, "phy_error_log - reply data transfer size(%d)\n", 1362 le16_to_cpu(mpi_reply->ResponseDataLength))); 1363 1364 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1365 sizeof(struct phy_error_log_reply)) 1366 goto out; 1367 1368 phy_error_log_reply = data_out + 1369 sizeof(struct phy_error_log_request); 1370 1371 dtransportprintk(ioc, 1372 ioc_info(ioc, "phy_error_log - function_result(%d)\n", 1373 phy_error_log_reply->function_result)); 1374 1375 phy->invalid_dword_count = 1376 be32_to_cpu(phy_error_log_reply->invalid_dword); 1377 phy->running_disparity_error_count = 1378 be32_to_cpu(phy_error_log_reply->running_disparity_error); 1379 phy->loss_of_dword_sync_count = 1380 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync); 1381 phy->phy_reset_problem_count = 1382 be32_to_cpu(phy_error_log_reply->phy_reset_problem); 1383 rc = 0; 1384 } else 1385 dtransportprintk(ioc, 1386 ioc_info(ioc, "phy_error_log - no reply\n")); 1387 1388 issue_host_reset: 1389 if (issue_reset) 1390 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1391 out: 1392 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1393 if (data_out) 1394 dma_free_coherent(&ioc->pdev->dev, sz, data_out, data_out_dma); 1395 1396 mutex_unlock(&ioc->transport_cmds.mutex); 1397 return rc; 1398 } 1399 1400 /** 1401 * _transport_get_linkerrors - return phy counters for both hba and expanders 1402 * @phy: The sas phy object 1403 * 1404 * Return: 0 for success, non-zero for failure. 1405 * 1406 */ 1407 static int 1408 _transport_get_linkerrors(struct sas_phy *phy) 1409 { 1410 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1411 unsigned long flags; 1412 Mpi2ConfigReply_t mpi_reply; 1413 Mpi2SasPhyPage1_t phy_pg1; 1414 struct hba_port *port = phy->hostdata; 1415 int port_id = port->port_id; 1416 1417 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1418 if (_transport_sas_node_find_by_sas_address(ioc, 1419 phy->identify.sas_address, 1420 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1421 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1422 return -EINVAL; 1423 } 1424 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1425 1426 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1427 return _transport_get_expander_phy_error_log(ioc, phy); 1428 1429 /* get hba phy error logs */ 1430 if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, 1431 phy->number))) { 1432 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1433 __FILE__, __LINE__, __func__); 1434 return -ENXIO; 1435 } 1436 1437 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1438 ioc_info(ioc, "phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n", 1439 phy->number, 1440 le16_to_cpu(mpi_reply.IOCStatus), 1441 le32_to_cpu(mpi_reply.IOCLogInfo)); 1442 1443 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount); 1444 phy->running_disparity_error_count = 1445 le32_to_cpu(phy_pg1.RunningDisparityErrorCount); 1446 phy->loss_of_dword_sync_count = 1447 le32_to_cpu(phy_pg1.LossDwordSynchCount); 1448 phy->phy_reset_problem_count = 1449 le32_to_cpu(phy_pg1.PhyResetProblemCount); 1450 return 0; 1451 } 1452 1453 /** 1454 * _transport_get_enclosure_identifier - 1455 * @rphy: The sas phy object 1456 * @identifier: ? 1457 * 1458 * Obtain the enclosure logical id for an expander. 1459 * Return: 0 for success, non-zero for failure. 1460 */ 1461 static int 1462 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) 1463 { 1464 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1465 struct _sas_device *sas_device; 1466 unsigned long flags; 1467 int rc; 1468 1469 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1470 sas_device = __mpt3sas_get_sdev_by_rphy(ioc, rphy); 1471 if (sas_device) { 1472 *identifier = sas_device->enclosure_logical_id; 1473 rc = 0; 1474 sas_device_put(sas_device); 1475 } else { 1476 *identifier = 0; 1477 rc = -ENXIO; 1478 } 1479 1480 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1481 return rc; 1482 } 1483 1484 /** 1485 * _transport_get_bay_identifier - 1486 * @rphy: The sas phy object 1487 * 1488 * Return: the slot id for a device that resides inside an enclosure. 1489 */ 1490 static int 1491 _transport_get_bay_identifier(struct sas_rphy *rphy) 1492 { 1493 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy); 1494 struct _sas_device *sas_device; 1495 unsigned long flags; 1496 int rc; 1497 1498 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1499 sas_device = __mpt3sas_get_sdev_by_rphy(ioc, rphy); 1500 if (sas_device) { 1501 rc = sas_device->slot; 1502 sas_device_put(sas_device); 1503 } else { 1504 rc = -ENXIO; 1505 } 1506 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1507 return rc; 1508 } 1509 1510 /* phy control request structure */ 1511 struct phy_control_request { 1512 u8 smp_frame_type; /* 0x40 */ 1513 u8 function; /* 0x91 */ 1514 u8 allocated_response_length; 1515 u8 request_length; /* 0x09 */ 1516 u16 expander_change_count; 1517 u8 reserved_1[3]; 1518 u8 phy_identifier; 1519 u8 phy_operation; 1520 u8 reserved_2[13]; 1521 u64 attached_device_name; 1522 u8 programmed_min_physical_link_rate; 1523 u8 programmed_max_physical_link_rate; 1524 u8 reserved_3[6]; 1525 }; 1526 1527 /* phy control reply structure */ 1528 struct phy_control_reply { 1529 u8 smp_frame_type; /* 0x41 */ 1530 u8 function; /* 0x11 */ 1531 u8 function_result; 1532 u8 response_length; 1533 }; 1534 1535 #define SMP_PHY_CONTROL_LINK_RESET (0x01) 1536 #define SMP_PHY_CONTROL_HARD_RESET (0x02) 1537 #define SMP_PHY_CONTROL_DISABLE (0x03) 1538 1539 /** 1540 * _transport_expander_phy_control - expander phy control 1541 * @ioc: per adapter object 1542 * @phy: The sas phy object 1543 * @phy_operation: ? 1544 * 1545 * Return: 0 for success, non-zero for failure. 1546 * 1547 */ 1548 static int 1549 _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, 1550 struct sas_phy *phy, u8 phy_operation) 1551 { 1552 Mpi2SmpPassthroughRequest_t *mpi_request; 1553 Mpi2SmpPassthroughReply_t *mpi_reply; 1554 struct phy_control_request *phy_control_request; 1555 struct phy_control_reply *phy_control_reply; 1556 int rc; 1557 u16 smid; 1558 void *psge; 1559 u8 issue_reset = 0; 1560 void *data_out = NULL; 1561 dma_addr_t data_out_dma; 1562 u32 sz; 1563 1564 if (ioc->shost_recovery || ioc->pci_error_recovery) { 1565 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 1566 return -EFAULT; 1567 } 1568 1569 mutex_lock(&ioc->transport_cmds.mutex); 1570 1571 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 1572 ioc_err(ioc, "%s: transport_cmds in use\n", __func__); 1573 rc = -EAGAIN; 1574 goto out; 1575 } 1576 ioc->transport_cmds.status = MPT3_CMD_PENDING; 1577 1578 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 1579 if (rc) 1580 goto out; 1581 1582 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 1583 if (!smid) { 1584 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 1585 rc = -EAGAIN; 1586 goto out; 1587 } 1588 1589 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 1590 ioc->transport_cmds.smid = smid; 1591 1592 sz = sizeof(struct phy_control_request) + 1593 sizeof(struct phy_control_reply); 1594 data_out = dma_alloc_coherent(&ioc->pdev->dev, sz, &data_out_dma, 1595 GFP_KERNEL); 1596 if (!data_out) { 1597 pr_err("failure at %s:%d/%s()!\n", __FILE__, 1598 __LINE__, __func__); 1599 rc = -ENOMEM; 1600 mpt3sas_base_free_smid(ioc, smid); 1601 goto out; 1602 } 1603 1604 rc = -EINVAL; 1605 memset(data_out, 0, sz); 1606 phy_control_request = data_out; 1607 phy_control_request->smp_frame_type = 0x40; 1608 phy_control_request->function = 0x91; 1609 phy_control_request->request_length = 9; 1610 phy_control_request->allocated_response_length = 0; 1611 phy_control_request->phy_identifier = phy->number; 1612 phy_control_request->phy_operation = phy_operation; 1613 phy_control_request->programmed_min_physical_link_rate = 1614 phy->minimum_linkrate << 4; 1615 phy_control_request->programmed_max_physical_link_rate = 1616 phy->maximum_linkrate << 4; 1617 1618 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 1619 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 1620 mpi_request->PhysicalPort = _transport_get_port_id_by_sas_phy(phy); 1621 mpi_request->VF_ID = 0; /* TODO */ 1622 mpi_request->VP_ID = 0; 1623 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address); 1624 mpi_request->RequestDataLength = 1625 cpu_to_le16(sizeof(struct phy_error_log_request)); 1626 psge = &mpi_request->SGL; 1627 1628 ioc->build_sg(ioc, psge, data_out_dma, 1629 sizeof(struct phy_control_request), 1630 data_out_dma + sizeof(struct phy_control_request), 1631 sizeof(struct phy_control_reply)); 1632 1633 dtransportprintk(ioc, 1634 ioc_info(ioc, "phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", 1635 (u64)phy->identify.sas_address, 1636 phy->number, phy_operation)); 1637 init_completion(&ioc->transport_cmds.done); 1638 ioc->put_smid_default(ioc, smid); 1639 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 1640 1641 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 1642 ioc_err(ioc, "%s: timeout\n", __func__); 1643 _debug_dump_mf(mpi_request, 1644 sizeof(Mpi2SmpPassthroughRequest_t)/4); 1645 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) 1646 issue_reset = 1; 1647 goto issue_host_reset; 1648 } 1649 1650 dtransportprintk(ioc, ioc_info(ioc, "phy_control - complete\n")); 1651 1652 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) { 1653 1654 mpi_reply = ioc->transport_cmds.reply; 1655 1656 dtransportprintk(ioc, 1657 ioc_info(ioc, "phy_control - reply data transfer size(%d)\n", 1658 le16_to_cpu(mpi_reply->ResponseDataLength))); 1659 1660 if (le16_to_cpu(mpi_reply->ResponseDataLength) != 1661 sizeof(struct phy_control_reply)) 1662 goto out; 1663 1664 phy_control_reply = data_out + 1665 sizeof(struct phy_control_request); 1666 1667 dtransportprintk(ioc, 1668 ioc_info(ioc, "phy_control - function_result(%d)\n", 1669 phy_control_reply->function_result)); 1670 1671 rc = 0; 1672 } else 1673 dtransportprintk(ioc, 1674 ioc_info(ioc, "phy_control - no reply\n")); 1675 1676 issue_host_reset: 1677 if (issue_reset) 1678 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 1679 out: 1680 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 1681 if (data_out) 1682 dma_free_coherent(&ioc->pdev->dev, sz, data_out, 1683 data_out_dma); 1684 1685 mutex_unlock(&ioc->transport_cmds.mutex); 1686 return rc; 1687 } 1688 1689 /** 1690 * _transport_phy_reset - 1691 * @phy: The sas phy object 1692 * @hard_reset: 1693 * 1694 * Return: 0 for success, non-zero for failure. 1695 */ 1696 static int 1697 _transport_phy_reset(struct sas_phy *phy, int hard_reset) 1698 { 1699 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1700 Mpi2SasIoUnitControlReply_t mpi_reply; 1701 Mpi2SasIoUnitControlRequest_t mpi_request; 1702 struct hba_port *port = phy->hostdata; 1703 int port_id = port->port_id; 1704 unsigned long flags; 1705 1706 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1707 if (_transport_sas_node_find_by_sas_address(ioc, 1708 phy->identify.sas_address, 1709 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1710 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1711 return -EINVAL; 1712 } 1713 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1714 1715 /* handle expander phys */ 1716 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1717 return _transport_expander_phy_control(ioc, phy, 1718 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET : 1719 SMP_PHY_CONTROL_LINK_RESET); 1720 1721 /* handle hba phys */ 1722 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t)); 1723 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; 1724 mpi_request.Operation = hard_reset ? 1725 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET; 1726 mpi_request.PhyNum = phy->number; 1727 1728 if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { 1729 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1730 __FILE__, __LINE__, __func__); 1731 return -ENXIO; 1732 } 1733 1734 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) 1735 ioc_info(ioc, "phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n", 1736 phy->number, le16_to_cpu(mpi_reply.IOCStatus), 1737 le32_to_cpu(mpi_reply.IOCLogInfo)); 1738 1739 return 0; 1740 } 1741 1742 /** 1743 * _transport_phy_enable - enable/disable phys 1744 * @phy: The sas phy object 1745 * @enable: enable phy when true 1746 * 1747 * Only support sas_host direct attached phys. 1748 * Return: 0 for success, non-zero for failure. 1749 */ 1750 static int 1751 _transport_phy_enable(struct sas_phy *phy, int enable) 1752 { 1753 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1754 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1755 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL; 1756 Mpi2ConfigReply_t mpi_reply; 1757 u16 ioc_status; 1758 u16 sz; 1759 int rc = 0; 1760 unsigned long flags; 1761 int i, discovery_active; 1762 struct hba_port *port = phy->hostdata; 1763 int port_id = port->port_id; 1764 1765 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1766 if (_transport_sas_node_find_by_sas_address(ioc, 1767 phy->identify.sas_address, 1768 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1769 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1770 return -EINVAL; 1771 } 1772 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1773 1774 /* handle expander phys */ 1775 if (phy->identify.sas_address != ioc->sas_hba.sas_address) 1776 return _transport_expander_phy_control(ioc, phy, 1777 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET : 1778 SMP_PHY_CONTROL_DISABLE); 1779 1780 /* handle hba phys */ 1781 1782 /* read sas_iounit page 0 */ 1783 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * 1784 sizeof(Mpi2SasIOUnit0PhyData_t)); 1785 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); 1786 if (!sas_iounit_pg0) { 1787 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1788 __FILE__, __LINE__, __func__); 1789 rc = -ENOMEM; 1790 goto out; 1791 } 1792 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply, 1793 sas_iounit_pg0, sz))) { 1794 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1795 __FILE__, __LINE__, __func__); 1796 rc = -ENXIO; 1797 goto out; 1798 } 1799 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1800 MPI2_IOCSTATUS_MASK; 1801 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1802 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1803 __FILE__, __LINE__, __func__); 1804 rc = -EIO; 1805 goto out; 1806 } 1807 1808 /* unable to enable/disable phys when when discovery is active */ 1809 for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) { 1810 if (sas_iounit_pg0->PhyData[i].PortFlags & 1811 MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) { 1812 ioc_err(ioc, "discovery is active on port = %d, phy = %d: unable to enable/disable phys, try again later!\n", 1813 sas_iounit_pg0->PhyData[i].Port, i); 1814 discovery_active = 1; 1815 } 1816 } 1817 1818 if (discovery_active) { 1819 rc = -EAGAIN; 1820 goto out; 1821 } 1822 1823 /* read sas_iounit page 1 */ 1824 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1825 sizeof(Mpi2SasIOUnit1PhyData_t)); 1826 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1827 if (!sas_iounit_pg1) { 1828 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1829 __FILE__, __LINE__, __func__); 1830 rc = -ENOMEM; 1831 goto out; 1832 } 1833 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1834 sas_iounit_pg1, sz))) { 1835 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1836 __FILE__, __LINE__, __func__); 1837 rc = -ENXIO; 1838 goto out; 1839 } 1840 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1841 MPI2_IOCSTATUS_MASK; 1842 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1843 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1844 __FILE__, __LINE__, __func__); 1845 rc = -EIO; 1846 goto out; 1847 } 1848 1849 /* copy Port/PortFlags/PhyFlags from page 0 */ 1850 for (i = 0; i < ioc->sas_hba.num_phys ; i++) { 1851 sas_iounit_pg1->PhyData[i].Port = 1852 sas_iounit_pg0->PhyData[i].Port; 1853 sas_iounit_pg1->PhyData[i].PortFlags = 1854 (sas_iounit_pg0->PhyData[i].PortFlags & 1855 MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG); 1856 sas_iounit_pg1->PhyData[i].PhyFlags = 1857 (sas_iounit_pg0->PhyData[i].PhyFlags & 1858 (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED + 1859 MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED)); 1860 } 1861 1862 if (enable) 1863 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1864 &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1865 else 1866 sas_iounit_pg1->PhyData[phy->number].PhyFlags 1867 |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; 1868 1869 mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz); 1870 1871 /* link reset */ 1872 if (enable) 1873 _transport_phy_reset(phy, 0); 1874 1875 out: 1876 kfree(sas_iounit_pg1); 1877 kfree(sas_iounit_pg0); 1878 return rc; 1879 } 1880 1881 /** 1882 * _transport_phy_speed - set phy min/max link rates 1883 * @phy: The sas phy object 1884 * @rates: rates defined in sas_phy_linkrates 1885 * 1886 * Only support sas_host direct attached phys. 1887 * 1888 * Return: 0 for success, non-zero for failure. 1889 */ 1890 static int 1891 _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) 1892 { 1893 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy); 1894 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL; 1895 Mpi2SasPhyPage0_t phy_pg0; 1896 Mpi2ConfigReply_t mpi_reply; 1897 u16 ioc_status; 1898 u16 sz; 1899 int i; 1900 int rc = 0; 1901 unsigned long flags; 1902 struct hba_port *port = phy->hostdata; 1903 int port_id = port->port_id; 1904 1905 spin_lock_irqsave(&ioc->sas_node_lock, flags); 1906 if (_transport_sas_node_find_by_sas_address(ioc, 1907 phy->identify.sas_address, 1908 mpt3sas_get_port_by_id(ioc, port_id, 0)) == NULL) { 1909 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1910 return -EINVAL; 1911 } 1912 spin_unlock_irqrestore(&ioc->sas_node_lock, flags); 1913 1914 if (!rates->minimum_linkrate) 1915 rates->minimum_linkrate = phy->minimum_linkrate; 1916 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw) 1917 rates->minimum_linkrate = phy->minimum_linkrate_hw; 1918 1919 if (!rates->maximum_linkrate) 1920 rates->maximum_linkrate = phy->maximum_linkrate; 1921 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw) 1922 rates->maximum_linkrate = phy->maximum_linkrate_hw; 1923 1924 /* handle expander phys */ 1925 if (phy->identify.sas_address != ioc->sas_hba.sas_address) { 1926 phy->minimum_linkrate = rates->minimum_linkrate; 1927 phy->maximum_linkrate = rates->maximum_linkrate; 1928 return _transport_expander_phy_control(ioc, phy, 1929 SMP_PHY_CONTROL_LINK_RESET); 1930 } 1931 1932 /* handle hba phys */ 1933 1934 /* sas_iounit page 1 */ 1935 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * 1936 sizeof(Mpi2SasIOUnit1PhyData_t)); 1937 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); 1938 if (!sas_iounit_pg1) { 1939 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1940 __FILE__, __LINE__, __func__); 1941 rc = -ENOMEM; 1942 goto out; 1943 } 1944 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply, 1945 sas_iounit_pg1, sz))) { 1946 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1947 __FILE__, __LINE__, __func__); 1948 rc = -ENXIO; 1949 goto out; 1950 } 1951 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & 1952 MPI2_IOCSTATUS_MASK; 1953 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { 1954 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1955 __FILE__, __LINE__, __func__); 1956 rc = -EIO; 1957 goto out; 1958 } 1959 1960 for (i = 0; i < ioc->sas_hba.num_phys; i++) { 1961 if (phy->number != i) { 1962 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1963 (ioc->sas_hba.phy[i].phy->minimum_linkrate + 1964 (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4)); 1965 } else { 1966 sas_iounit_pg1->PhyData[i].MaxMinLinkRate = 1967 (rates->minimum_linkrate + 1968 (rates->maximum_linkrate << 4)); 1969 } 1970 } 1971 1972 if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, 1973 sz)) { 1974 ioc_err(ioc, "failure at %s:%d/%s()!\n", 1975 __FILE__, __LINE__, __func__); 1976 rc = -ENXIO; 1977 goto out; 1978 } 1979 1980 /* link reset */ 1981 _transport_phy_reset(phy, 0); 1982 1983 /* read phy page 0, then update the rates in the sas transport phy */ 1984 if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0, 1985 phy->number)) { 1986 phy->minimum_linkrate = _transport_convert_phy_link_rate( 1987 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); 1988 phy->maximum_linkrate = _transport_convert_phy_link_rate( 1989 phy_pg0.ProgrammedLinkRate >> 4); 1990 phy->negotiated_linkrate = _transport_convert_phy_link_rate( 1991 phy_pg0.NegotiatedLinkRate & 1992 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); 1993 } 1994 1995 out: 1996 kfree(sas_iounit_pg1); 1997 return rc; 1998 } 1999 2000 static int 2001 _transport_map_smp_buffer(struct device *dev, struct bsg_buffer *buf, 2002 dma_addr_t *dma_addr, size_t *dma_len, void **p) 2003 { 2004 /* Check if the request is split across multiple segments */ 2005 if (buf->sg_cnt > 1) { 2006 *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr, 2007 GFP_KERNEL); 2008 if (!*p) 2009 return -ENOMEM; 2010 *dma_len = buf->payload_len; 2011 } else { 2012 if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL)) 2013 return -ENOMEM; 2014 *dma_addr = sg_dma_address(buf->sg_list); 2015 *dma_len = sg_dma_len(buf->sg_list); 2016 *p = NULL; 2017 } 2018 2019 return 0; 2020 } 2021 2022 static void 2023 _transport_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf, 2024 dma_addr_t dma_addr, void *p) 2025 { 2026 if (p) 2027 dma_free_coherent(dev, buf->payload_len, p, dma_addr); 2028 else 2029 dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL); 2030 } 2031 2032 /** 2033 * _transport_smp_handler - transport portal for smp passthru 2034 * @job: ? 2035 * @shost: shost object 2036 * @rphy: sas transport rphy object 2037 * 2038 * This used primarily for smp_utils. 2039 * Example: 2040 * smp_rep_general /sys/class/bsg/expander-5:0 2041 */ 2042 static void 2043 _transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost, 2044 struct sas_rphy *rphy) 2045 { 2046 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); 2047 Mpi2SmpPassthroughRequest_t *mpi_request; 2048 Mpi2SmpPassthroughReply_t *mpi_reply; 2049 int rc; 2050 u16 smid; 2051 void *psge; 2052 dma_addr_t dma_addr_in; 2053 dma_addr_t dma_addr_out; 2054 void *addr_in = NULL; 2055 void *addr_out = NULL; 2056 size_t dma_len_in; 2057 size_t dma_len_out; 2058 unsigned int reslen = 0; 2059 2060 if (ioc->shost_recovery || ioc->pci_error_recovery) { 2061 ioc_info(ioc, "%s: host reset in progress!\n", __func__); 2062 rc = -EFAULT; 2063 goto job_done; 2064 } 2065 2066 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); 2067 if (rc) 2068 goto job_done; 2069 2070 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) { 2071 ioc_err(ioc, "%s: transport_cmds in use\n", 2072 __func__); 2073 rc = -EAGAIN; 2074 goto out; 2075 } 2076 ioc->transport_cmds.status = MPT3_CMD_PENDING; 2077 2078 rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->request_payload, 2079 &dma_addr_out, &dma_len_out, &addr_out); 2080 if (rc) 2081 goto out; 2082 if (addr_out) { 2083 sg_copy_to_buffer(job->request_payload.sg_list, 2084 job->request_payload.sg_cnt, addr_out, 2085 job->request_payload.payload_len); 2086 } 2087 2088 rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->reply_payload, 2089 &dma_addr_in, &dma_len_in, &addr_in); 2090 if (rc) 2091 goto unmap_out; 2092 2093 rc = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT); 2094 if (rc) 2095 goto unmap_in; 2096 2097 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); 2098 if (!smid) { 2099 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__); 2100 rc = -EAGAIN; 2101 goto unmap_in; 2102 } 2103 2104 rc = 0; 2105 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); 2106 ioc->transport_cmds.smid = smid; 2107 2108 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); 2109 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; 2110 mpi_request->PhysicalPort = _transport_get_port_id_by_rphy(ioc, rphy); 2111 mpi_request->SASAddress = (rphy) ? 2112 cpu_to_le64(rphy->identify.sas_address) : 2113 cpu_to_le64(ioc->sas_hba.sas_address); 2114 mpi_request->RequestDataLength = cpu_to_le16(dma_len_out - 4); 2115 psge = &mpi_request->SGL; 2116 2117 ioc->build_sg(ioc, psge, dma_addr_out, dma_len_out - 4, dma_addr_in, 2118 dma_len_in - 4); 2119 2120 dtransportprintk(ioc, 2121 ioc_info(ioc, "%s: sending smp request\n", __func__)); 2122 2123 init_completion(&ioc->transport_cmds.done); 2124 ioc->put_smid_default(ioc, smid); 2125 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ); 2126 2127 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) { 2128 ioc_err(ioc, "%s: timeout\n", __func__); 2129 _debug_dump_mf(mpi_request, 2130 sizeof(Mpi2SmpPassthroughRequest_t)/4); 2131 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) { 2132 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); 2133 rc = -ETIMEDOUT; 2134 goto unmap_in; 2135 } 2136 } 2137 2138 dtransportprintk(ioc, ioc_info(ioc, "%s - complete\n", __func__)); 2139 2140 if (!(ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID)) { 2141 dtransportprintk(ioc, 2142 ioc_info(ioc, "%s: no reply\n", __func__)); 2143 rc = -ENXIO; 2144 goto unmap_in; 2145 } 2146 2147 mpi_reply = ioc->transport_cmds.reply; 2148 2149 dtransportprintk(ioc, 2150 ioc_info(ioc, "%s: reply data transfer size(%d)\n", 2151 __func__, 2152 le16_to_cpu(mpi_reply->ResponseDataLength))); 2153 2154 memcpy(job->reply, mpi_reply, sizeof(*mpi_reply)); 2155 job->reply_len = sizeof(*mpi_reply); 2156 reslen = le16_to_cpu(mpi_reply->ResponseDataLength); 2157 2158 if (addr_in) { 2159 sg_copy_to_buffer(job->reply_payload.sg_list, 2160 job->reply_payload.sg_cnt, addr_in, 2161 job->reply_payload.payload_len); 2162 } 2163 2164 rc = 0; 2165 unmap_in: 2166 _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->reply_payload, 2167 dma_addr_in, addr_in); 2168 unmap_out: 2169 _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->request_payload, 2170 dma_addr_out, addr_out); 2171 out: 2172 ioc->transport_cmds.status = MPT3_CMD_NOT_USED; 2173 mutex_unlock(&ioc->transport_cmds.mutex); 2174 job_done: 2175 bsg_job_done(job, rc, reslen); 2176 } 2177 2178 struct sas_function_template mpt3sas_transport_functions = { 2179 .get_linkerrors = _transport_get_linkerrors, 2180 .get_enclosure_identifier = _transport_get_enclosure_identifier, 2181 .get_bay_identifier = _transport_get_bay_identifier, 2182 .phy_reset = _transport_phy_reset, 2183 .phy_enable = _transport_phy_enable, 2184 .set_phy_speed = _transport_phy_speed, 2185 .smp_handler = _transport_smp_handler, 2186 }; 2187 2188 struct scsi_transport_template *mpt3sas_transport_template; 2189