1 /* 2 * linux/drivers/message/fusion/mptsas.c 3 * For use with LSI PCI chip/adapter(s) 4 * running LSI Fusion MPT (Message Passing Technology) firmware. 5 * 6 * Copyright (c) 1999-2007 LSI Corporation 7 * (mailto:DL-MPTFusionLinux@lsi.com) 8 */ 9 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 10 /* 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; version 2 of the License. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 NO WARRANTY 21 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 22 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 23 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 24 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 25 solely responsible for determining the appropriateness of using and 26 distributing the Program and assumes all risks associated with its 27 exercise of rights under this Agreement, including but not limited to 28 the risks and costs of program errors, damage to or loss of data, 29 programs or equipment, and unavailability or interruption of operations. 30 31 DISCLAIMER OF LIABILITY 32 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 33 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 35 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 36 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 37 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 38 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 39 40 You should have received a copy of the GNU General Public License 41 along with this program; if not, write to the Free Software 42 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 43 */ 44 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 45 46 #include <linux/module.h> 47 #include <linux/kernel.h> 48 #include <linux/init.h> 49 #include <linux/errno.h> 50 #include <linux/jiffies.h> 51 #include <linux/workqueue.h> 52 #include <linux/delay.h> /* for mdelay */ 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 "mptbase.h" 62 #include "mptscsih.h" 63 #include "mptsas.h" 64 65 66 #define my_NAME "Fusion MPT SAS Host driver" 67 #define my_VERSION MPT_LINUX_VERSION_COMMON 68 #define MYNAM "mptsas" 69 70 /* 71 * Reserved channel for integrated raid 72 */ 73 #define MPTSAS_RAID_CHANNEL 1 74 75 MODULE_AUTHOR(MODULEAUTHOR); 76 MODULE_DESCRIPTION(my_NAME); 77 MODULE_LICENSE("GPL"); 78 MODULE_VERSION(my_VERSION); 79 80 static int mpt_pt_clear; 81 module_param(mpt_pt_clear, int, 0); 82 MODULE_PARM_DESC(mpt_pt_clear, 83 " Clear persistency table: enable=1 " 84 "(default=MPTSCSIH_PT_CLEAR=0)"); 85 86 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */ 87 #define MPTSAS_MAX_LUN (16895) 88 static int max_lun = MPTSAS_MAX_LUN; 89 module_param(max_lun, int, 0); 90 MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); 91 92 static u8 mptsasDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 93 static u8 mptsasTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 94 static u8 mptsasInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */ 95 static u8 mptsasMgmtCtx = MPT_MAX_PROTOCOL_DRIVERS; 96 97 static void mptsas_hotplug_work(struct work_struct *work); 98 99 static void mptsas_print_phy_data(MPT_ADAPTER *ioc, 100 MPI_SAS_IO_UNIT0_PHY_DATA *phy_data) 101 { 102 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 103 "---- IO UNIT PAGE 0 ------------\n", ioc->name)); 104 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Handle=0x%X\n", 105 ioc->name, le16_to_cpu(phy_data->AttachedDeviceHandle))); 106 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Controller Handle=0x%X\n", 107 ioc->name, le16_to_cpu(phy_data->ControllerDevHandle))); 108 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Port=0x%X\n", 109 ioc->name, phy_data->Port)); 110 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Port Flags=0x%X\n", 111 ioc->name, phy_data->PortFlags)); 112 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Flags=0x%X\n", 113 ioc->name, phy_data->PhyFlags)); 114 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Negotiated Link Rate=0x%X\n", 115 ioc->name, phy_data->NegotiatedLinkRate)); 116 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 117 "Controller PHY Device Info=0x%X\n", ioc->name, 118 le32_to_cpu(phy_data->ControllerPhyDeviceInfo))); 119 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "DiscoveryStatus=0x%X\n\n", 120 ioc->name, le32_to_cpu(phy_data->DiscoveryStatus))); 121 } 122 123 static void mptsas_print_phy_pg0(MPT_ADAPTER *ioc, SasPhyPage0_t *pg0) 124 { 125 __le64 sas_address; 126 127 memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64)); 128 129 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 130 "---- SAS PHY PAGE 0 ------------\n", ioc->name)); 131 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 132 "Attached Device Handle=0x%X\n", ioc->name, 133 le16_to_cpu(pg0->AttachedDevHandle))); 134 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SAS Address=0x%llX\n", 135 ioc->name, (unsigned long long)le64_to_cpu(sas_address))); 136 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 137 "Attached PHY Identifier=0x%X\n", ioc->name, 138 pg0->AttachedPhyIdentifier)); 139 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Attached Device Info=0x%X\n", 140 ioc->name, le32_to_cpu(pg0->AttachedDeviceInfo))); 141 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Programmed Link Rate=0x%X\n", 142 ioc->name, pg0->ProgrammedLinkRate)); 143 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Change Count=0x%X\n", 144 ioc->name, pg0->ChangeCount)); 145 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Info=0x%X\n\n", 146 ioc->name, le32_to_cpu(pg0->PhyInfo))); 147 } 148 149 static void mptsas_print_phy_pg1(MPT_ADAPTER *ioc, SasPhyPage1_t *pg1) 150 { 151 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 152 "---- SAS PHY PAGE 1 ------------\n", ioc->name)); 153 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Invalid Dword Count=0x%x\n", 154 ioc->name, pg1->InvalidDwordCount)); 155 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 156 "Running Disparity Error Count=0x%x\n", ioc->name, 157 pg1->RunningDisparityErrorCount)); 158 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 159 "Loss Dword Synch Count=0x%x\n", ioc->name, 160 pg1->LossDwordSynchCount)); 161 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 162 "PHY Reset Problem Count=0x%x\n\n", ioc->name, 163 pg1->PhyResetProblemCount)); 164 } 165 166 static void mptsas_print_device_pg0(MPT_ADAPTER *ioc, SasDevicePage0_t *pg0) 167 { 168 __le64 sas_address; 169 170 memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64)); 171 172 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 173 "---- SAS DEVICE PAGE 0 ---------\n", ioc->name)); 174 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Handle=0x%X\n", 175 ioc->name, le16_to_cpu(pg0->DevHandle))); 176 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Parent Handle=0x%X\n", 177 ioc->name, le16_to_cpu(pg0->ParentDevHandle))); 178 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Enclosure Handle=0x%X\n", 179 ioc->name, le16_to_cpu(pg0->EnclosureHandle))); 180 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Slot=0x%X\n", 181 ioc->name, le16_to_cpu(pg0->Slot))); 182 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SAS Address=0x%llX\n", 183 ioc->name, (unsigned long long)le64_to_cpu(sas_address))); 184 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Target ID=0x%X\n", 185 ioc->name, pg0->TargetID)); 186 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Bus=0x%X\n", 187 ioc->name, pg0->Bus)); 188 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Parent Phy Num=0x%X\n", 189 ioc->name, pg0->PhyNum)); 190 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Access Status=0x%X\n", 191 ioc->name, le16_to_cpu(pg0->AccessStatus))); 192 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Device Info=0x%X\n", 193 ioc->name, le32_to_cpu(pg0->DeviceInfo))); 194 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Flags=0x%X\n", 195 ioc->name, le16_to_cpu(pg0->Flags))); 196 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Physical Port=0x%X\n\n", 197 ioc->name, pg0->PhysicalPort)); 198 } 199 200 static void mptsas_print_expander_pg1(MPT_ADAPTER *ioc, SasExpanderPage1_t *pg1) 201 { 202 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 203 "---- SAS EXPANDER PAGE 1 ------------\n", ioc->name)); 204 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Physical Port=0x%X\n", 205 ioc->name, pg1->PhysicalPort)); 206 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Identifier=0x%X\n", 207 ioc->name, pg1->PhyIdentifier)); 208 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Negotiated Link Rate=0x%X\n", 209 ioc->name, pg1->NegotiatedLinkRate)); 210 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Programmed Link Rate=0x%X\n", 211 ioc->name, pg1->ProgrammedLinkRate)); 212 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hardware Link Rate=0x%X\n", 213 ioc->name, pg1->HwLinkRate)); 214 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Owner Device Handle=0x%X\n", 215 ioc->name, le16_to_cpu(pg1->OwnerDevHandle))); 216 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT 217 "Attached Device Handle=0x%X\n\n", ioc->name, 218 le16_to_cpu(pg1->AttachedDevHandle))); 219 } 220 221 static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy) 222 { 223 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 224 return ((MPT_SCSI_HOST *)shost->hostdata)->ioc; 225 } 226 227 static inline MPT_ADAPTER *rphy_to_ioc(struct sas_rphy *rphy) 228 { 229 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); 230 return ((MPT_SCSI_HOST *)shost->hostdata)->ioc; 231 } 232 233 /* 234 * mptsas_find_portinfo_by_handle 235 * 236 * This function should be called with the sas_topology_mutex already held 237 */ 238 static struct mptsas_portinfo * 239 mptsas_find_portinfo_by_handle(MPT_ADAPTER *ioc, u16 handle) 240 { 241 struct mptsas_portinfo *port_info, *rc=NULL; 242 int i; 243 244 list_for_each_entry(port_info, &ioc->sas_topology, list) 245 for (i = 0; i < port_info->num_phys; i++) 246 if (port_info->phy_info[i].identify.handle == handle) { 247 rc = port_info; 248 goto out; 249 } 250 out: 251 return rc; 252 } 253 254 /* 255 * Returns true if there is a scsi end device 256 */ 257 static inline int 258 mptsas_is_end_device(struct mptsas_devinfo * attached) 259 { 260 if ((attached->sas_address) && 261 (attached->device_info & 262 MPI_SAS_DEVICE_INFO_END_DEVICE) && 263 ((attached->device_info & 264 MPI_SAS_DEVICE_INFO_SSP_TARGET) | 265 (attached->device_info & 266 MPI_SAS_DEVICE_INFO_STP_TARGET) | 267 (attached->device_info & 268 MPI_SAS_DEVICE_INFO_SATA_DEVICE))) 269 return 1; 270 else 271 return 0; 272 } 273 274 /* no mutex */ 275 static void 276 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details) 277 { 278 struct mptsas_portinfo *port_info; 279 struct mptsas_phyinfo *phy_info; 280 u8 i; 281 282 if (!port_details) 283 return; 284 285 port_info = port_details->port_info; 286 phy_info = port_info->phy_info; 287 288 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: num_phys=%02d " 289 "bitmask=0x%016llX\n", ioc->name, __FUNCTION__, port_details, 290 port_details->num_phys, (unsigned long long) 291 port_details->phy_bitmask)); 292 293 for (i = 0; i < port_info->num_phys; i++, phy_info++) { 294 if(phy_info->port_details != port_details) 295 continue; 296 memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo)); 297 phy_info->port_details = NULL; 298 } 299 kfree(port_details); 300 } 301 302 static inline struct sas_rphy * 303 mptsas_get_rphy(struct mptsas_phyinfo *phy_info) 304 { 305 if (phy_info->port_details) 306 return phy_info->port_details->rphy; 307 else 308 return NULL; 309 } 310 311 static inline void 312 mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) 313 { 314 if (phy_info->port_details) { 315 phy_info->port_details->rphy = rphy; 316 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", 317 ioc->name, rphy)); 318 } 319 320 if (rphy) { 321 dsaswideprintk(ioc, dev_printk(KERN_DEBUG, 322 &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); 323 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", 324 ioc->name, rphy, rphy->dev.release)); 325 } 326 } 327 328 static inline struct sas_port * 329 mptsas_get_port(struct mptsas_phyinfo *phy_info) 330 { 331 if (phy_info->port_details) 332 return phy_info->port_details->port; 333 else 334 return NULL; 335 } 336 337 static inline void 338 mptsas_set_port(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_port *port) 339 { 340 if (phy_info->port_details) 341 phy_info->port_details->port = port; 342 343 if (port) { 344 dsaswideprintk(ioc, dev_printk(KERN_DEBUG, 345 &port->dev, MYIOC_s_FMT "add:", ioc->name)); 346 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "port=%p release=%p\n", 347 ioc->name, port, port->dev.release)); 348 } 349 } 350 351 static inline struct scsi_target * 352 mptsas_get_starget(struct mptsas_phyinfo *phy_info) 353 { 354 if (phy_info->port_details) 355 return phy_info->port_details->starget; 356 else 357 return NULL; 358 } 359 360 static inline void 361 mptsas_set_starget(struct mptsas_phyinfo *phy_info, struct scsi_target * 362 starget) 363 { 364 if (phy_info->port_details) 365 phy_info->port_details->starget = starget; 366 } 367 368 369 /* 370 * mptsas_setup_wide_ports 371 * 372 * Updates for new and existing narrow/wide port configuration 373 * in the sas_topology 374 */ 375 static void 376 mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info) 377 { 378 struct mptsas_portinfo_details * port_details; 379 struct mptsas_phyinfo *phy_info, *phy_info_cmp; 380 u64 sas_address; 381 int i, j; 382 383 mutex_lock(&ioc->sas_topology_mutex); 384 385 phy_info = port_info->phy_info; 386 for (i = 0 ; i < port_info->num_phys ; i++, phy_info++) { 387 if (phy_info->attached.handle) 388 continue; 389 port_details = phy_info->port_details; 390 if (!port_details) 391 continue; 392 if (port_details->num_phys < 2) 393 continue; 394 /* 395 * Removing a phy from a port, letting the last 396 * phy be removed by firmware events. 397 */ 398 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT 399 "%s: [%p]: deleting phy = %d\n", 400 ioc->name, __FUNCTION__, port_details, i)); 401 port_details->num_phys--; 402 port_details->phy_bitmask &= ~ (1 << phy_info->phy_id); 403 memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo)); 404 sas_port_delete_phy(port_details->port, phy_info->phy); 405 phy_info->port_details = NULL; 406 } 407 408 /* 409 * Populate and refresh the tree 410 */ 411 phy_info = port_info->phy_info; 412 for (i = 0 ; i < port_info->num_phys ; i++, phy_info++) { 413 sas_address = phy_info->attached.sas_address; 414 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "phy_id=%d sas_address=0x%018llX\n", 415 ioc->name, i, (unsigned long long)sas_address)); 416 if (!sas_address) 417 continue; 418 port_details = phy_info->port_details; 419 /* 420 * Forming a port 421 */ 422 if (!port_details) { 423 port_details = kzalloc(sizeof(*port_details), 424 GFP_KERNEL); 425 if (!port_details) 426 goto out; 427 port_details->num_phys = 1; 428 port_details->port_info = port_info; 429 if (phy_info->phy_id < 64 ) 430 port_details->phy_bitmask |= 431 (1 << phy_info->phy_id); 432 phy_info->sas_port_add_phy=1; 433 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tForming port\n\t\t" 434 "phy_id=%d sas_address=0x%018llX\n", 435 ioc->name, i, (unsigned long long)sas_address)); 436 phy_info->port_details = port_details; 437 } 438 439 if (i == port_info->num_phys - 1) 440 continue; 441 phy_info_cmp = &port_info->phy_info[i + 1]; 442 for (j = i + 1 ; j < port_info->num_phys ; j++, 443 phy_info_cmp++) { 444 if (!phy_info_cmp->attached.sas_address) 445 continue; 446 if (sas_address != phy_info_cmp->attached.sas_address) 447 continue; 448 if (phy_info_cmp->port_details == port_details ) 449 continue; 450 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT 451 "\t\tphy_id=%d sas_address=0x%018llX\n", 452 ioc->name, j, (unsigned long long) 453 phy_info_cmp->attached.sas_address)); 454 if (phy_info_cmp->port_details) { 455 port_details->rphy = 456 mptsas_get_rphy(phy_info_cmp); 457 port_details->port = 458 mptsas_get_port(phy_info_cmp); 459 port_details->starget = 460 mptsas_get_starget(phy_info_cmp); 461 port_details->num_phys = 462 phy_info_cmp->port_details->num_phys; 463 if (!phy_info_cmp->port_details->num_phys) 464 kfree(phy_info_cmp->port_details); 465 } else 466 phy_info_cmp->sas_port_add_phy=1; 467 /* 468 * Adding a phy to a port 469 */ 470 phy_info_cmp->port_details = port_details; 471 if (phy_info_cmp->phy_id < 64 ) 472 port_details->phy_bitmask |= 473 (1 << phy_info_cmp->phy_id); 474 port_details->num_phys++; 475 } 476 } 477 478 out: 479 480 for (i = 0; i < port_info->num_phys; i++) { 481 port_details = port_info->phy_info[i].port_details; 482 if (!port_details) 483 continue; 484 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT 485 "%s: [%p]: phy_id=%02d num_phys=%02d " 486 "bitmask=0x%016llX\n", ioc->name, __FUNCTION__, 487 port_details, i, port_details->num_phys, 488 (unsigned long long)port_details->phy_bitmask)); 489 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tport = %p rphy=%p\n", 490 ioc->name, port_details->port, port_details->rphy)); 491 } 492 dsaswideprintk(ioc, printk("\n")); 493 mutex_unlock(&ioc->sas_topology_mutex); 494 } 495 496 /** 497 * csmisas_find_vtarget 498 * 499 * @ioc 500 * @volume_id 501 * @volume_bus 502 * 503 **/ 504 static VirtTarget * 505 mptsas_find_vtarget(MPT_ADAPTER *ioc, u8 channel, u8 id) 506 { 507 struct scsi_device *sdev; 508 VirtDevice *vdevice; 509 VirtTarget *vtarget = NULL; 510 511 shost_for_each_device(sdev, ioc->sh) { 512 if ((vdevice = sdev->hostdata) == NULL) 513 continue; 514 if (vdevice->vtarget->id == id && 515 vdevice->vtarget->channel == channel) 516 vtarget = vdevice->vtarget; 517 } 518 return vtarget; 519 } 520 521 /** 522 * mptsas_target_reset 523 * 524 * Issues TARGET_RESET to end device using handshaking method 525 * 526 * @ioc 527 * @channel 528 * @id 529 * 530 * Returns (1) success 531 * (0) failure 532 * 533 **/ 534 static int 535 mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id) 536 { 537 MPT_FRAME_HDR *mf; 538 SCSITaskMgmt_t *pScsiTm; 539 540 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) { 541 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames @%d!!\n", 542 ioc->name,__FUNCTION__, __LINE__)); 543 return 0; 544 } 545 546 /* Format the Request 547 */ 548 pScsiTm = (SCSITaskMgmt_t *) mf; 549 memset (pScsiTm, 0, sizeof(SCSITaskMgmt_t)); 550 pScsiTm->TargetID = id; 551 pScsiTm->Bus = channel; 552 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT; 553 pScsiTm->TaskType = MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 554 pScsiTm->MsgFlags = MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION; 555 556 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf); 557 558 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf); 559 560 return 1; 561 } 562 563 /** 564 * mptsas_target_reset_queue 565 * 566 * Receive request for TARGET_RESET after recieving an firmware 567 * event NOT_RESPONDING_EVENT, then put command in link list 568 * and queue if task_queue already in use. 569 * 570 * @ioc 571 * @sas_event_data 572 * 573 **/ 574 static void 575 mptsas_target_reset_queue(MPT_ADAPTER *ioc, 576 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data) 577 { 578 MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 579 VirtTarget *vtarget = NULL; 580 struct mptsas_target_reset_event *target_reset_list; 581 u8 id, channel; 582 583 id = sas_event_data->TargetID; 584 channel = sas_event_data->Bus; 585 586 if (!(vtarget = mptsas_find_vtarget(ioc, channel, id))) 587 return; 588 589 vtarget->deleted = 1; /* block IO */ 590 591 target_reset_list = kzalloc(sizeof(*target_reset_list), 592 GFP_ATOMIC); 593 if (!target_reset_list) { 594 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n", 595 ioc->name,__FUNCTION__, __LINE__)); 596 return; 597 } 598 599 memcpy(&target_reset_list->sas_event_data, sas_event_data, 600 sizeof(*sas_event_data)); 601 list_add_tail(&target_reset_list->list, &hd->target_reset_list); 602 603 if (hd->resetPending) 604 return; 605 606 if (mptsas_target_reset(ioc, channel, id)) { 607 target_reset_list->target_reset_issued = 1; 608 hd->resetPending = 1; 609 } 610 } 611 612 /** 613 * mptsas_dev_reset_complete 614 * 615 * Completion for TARGET_RESET after NOT_RESPONDING_EVENT, 616 * enable work queue to finish off removing device from upper layers. 617 * then send next TARGET_RESET in the queue. 618 * 619 * @ioc 620 * 621 **/ 622 static void 623 mptsas_dev_reset_complete(MPT_ADAPTER *ioc) 624 { 625 MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 626 struct list_head *head = &hd->target_reset_list; 627 struct mptsas_target_reset_event *target_reset_list; 628 struct mptsas_hotplug_event *ev; 629 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data; 630 u8 id, channel; 631 __le64 sas_address; 632 633 if (list_empty(head)) 634 return; 635 636 target_reset_list = list_entry(head->next, struct mptsas_target_reset_event, list); 637 638 sas_event_data = &target_reset_list->sas_event_data; 639 id = sas_event_data->TargetID; 640 channel = sas_event_data->Bus; 641 hd->resetPending = 0; 642 643 /* 644 * retry target reset 645 */ 646 if (!target_reset_list->target_reset_issued) { 647 if (mptsas_target_reset(ioc, channel, id)) { 648 target_reset_list->target_reset_issued = 1; 649 hd->resetPending = 1; 650 } 651 return; 652 } 653 654 /* 655 * enable work queue to remove device from upper layers 656 */ 657 list_del(&target_reset_list->list); 658 659 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 660 if (!ev) { 661 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n", 662 ioc->name,__FUNCTION__, __LINE__)); 663 return; 664 } 665 666 INIT_WORK(&ev->work, mptsas_hotplug_work); 667 ev->ioc = ioc; 668 ev->handle = le16_to_cpu(sas_event_data->DevHandle); 669 ev->parent_handle = 670 le16_to_cpu(sas_event_data->ParentDevHandle); 671 ev->channel = channel; 672 ev->id =id; 673 ev->phy_id = sas_event_data->PhyNum; 674 memcpy(&sas_address, &sas_event_data->SASAddress, 675 sizeof(__le64)); 676 ev->sas_address = le64_to_cpu(sas_address); 677 ev->device_info = le32_to_cpu(sas_event_data->DeviceInfo); 678 ev->event_type = MPTSAS_DEL_DEVICE; 679 schedule_work(&ev->work); 680 kfree(target_reset_list); 681 682 /* 683 * issue target reset to next device in the queue 684 */ 685 686 head = &hd->target_reset_list; 687 if (list_empty(head)) 688 return; 689 690 target_reset_list = list_entry(head->next, struct mptsas_target_reset_event, 691 list); 692 693 sas_event_data = &target_reset_list->sas_event_data; 694 id = sas_event_data->TargetID; 695 channel = sas_event_data->Bus; 696 697 if (mptsas_target_reset(ioc, channel, id)) { 698 target_reset_list->target_reset_issued = 1; 699 hd->resetPending = 1; 700 } 701 } 702 703 /** 704 * mptsas_taskmgmt_complete 705 * 706 * @ioc 707 * @mf 708 * @mr 709 * 710 **/ 711 static int 712 mptsas_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) 713 { 714 mptsas_dev_reset_complete(ioc); 715 return mptscsih_taskmgmt_complete(ioc, mf, mr); 716 } 717 718 /** 719 * mptscsih_ioc_reset 720 * 721 * @ioc 722 * @reset_phase 723 * 724 **/ 725 static int 726 mptsas_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 727 { 728 MPT_SCSI_HOST *hd; 729 struct mptsas_target_reset_event *target_reset_list, *n; 730 int rc; 731 732 rc = mptscsih_ioc_reset(ioc, reset_phase); 733 734 if (ioc->bus_type != SAS) 735 goto out; 736 737 if (reset_phase != MPT_IOC_POST_RESET) 738 goto out; 739 740 if (!ioc->sh || !ioc->sh->hostdata) 741 goto out; 742 hd = shost_priv(ioc->sh); 743 if (!hd->ioc) 744 goto out; 745 746 if (list_empty(&hd->target_reset_list)) 747 goto out; 748 749 /* flush the target_reset_list */ 750 list_for_each_entry_safe(target_reset_list, n, 751 &hd->target_reset_list, list) { 752 list_del(&target_reset_list->list); 753 kfree(target_reset_list); 754 } 755 756 out: 757 return rc; 758 } 759 760 static int 761 mptsas_sas_enclosure_pg0(MPT_ADAPTER *ioc, struct mptsas_enclosure *enclosure, 762 u32 form, u32 form_specific) 763 { 764 ConfigExtendedPageHeader_t hdr; 765 CONFIGPARMS cfg; 766 SasEnclosurePage0_t *buffer; 767 dma_addr_t dma_handle; 768 int error; 769 __le64 le_identifier; 770 771 memset(&hdr, 0, sizeof(hdr)); 772 hdr.PageVersion = MPI_SASENCLOSURE0_PAGEVERSION; 773 hdr.PageNumber = 0; 774 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 775 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_ENCLOSURE; 776 777 cfg.cfghdr.ehdr = &hdr; 778 cfg.physAddr = -1; 779 cfg.pageAddr = form + form_specific; 780 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 781 cfg.dir = 0; /* read */ 782 cfg.timeout = 10; 783 784 error = mpt_config(ioc, &cfg); 785 if (error) 786 goto out; 787 if (!hdr.ExtPageLength) { 788 error = -ENXIO; 789 goto out; 790 } 791 792 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 793 &dma_handle); 794 if (!buffer) { 795 error = -ENOMEM; 796 goto out; 797 } 798 799 cfg.physAddr = dma_handle; 800 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 801 802 error = mpt_config(ioc, &cfg); 803 if (error) 804 goto out_free_consistent; 805 806 /* save config data */ 807 memcpy(&le_identifier, &buffer->EnclosureLogicalID, sizeof(__le64)); 808 enclosure->enclosure_logical_id = le64_to_cpu(le_identifier); 809 enclosure->enclosure_handle = le16_to_cpu(buffer->EnclosureHandle); 810 enclosure->flags = le16_to_cpu(buffer->Flags); 811 enclosure->num_slot = le16_to_cpu(buffer->NumSlots); 812 enclosure->start_slot = le16_to_cpu(buffer->StartSlot); 813 enclosure->start_id = buffer->StartTargetID; 814 enclosure->start_channel = buffer->StartBus; 815 enclosure->sep_id = buffer->SEPTargetID; 816 enclosure->sep_channel = buffer->SEPBus; 817 818 out_free_consistent: 819 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 820 buffer, dma_handle); 821 out: 822 return error; 823 } 824 825 static int 826 mptsas_slave_configure(struct scsi_device *sdev) 827 { 828 829 if (sdev->channel == MPTSAS_RAID_CHANNEL) 830 goto out; 831 832 sas_read_port_mode_page(sdev); 833 834 out: 835 return mptscsih_slave_configure(sdev); 836 } 837 838 static int 839 mptsas_target_alloc(struct scsi_target *starget) 840 { 841 struct Scsi_Host *host = dev_to_shost(&starget->dev); 842 MPT_SCSI_HOST *hd = shost_priv(host); 843 VirtTarget *vtarget; 844 u8 id, channel; 845 struct sas_rphy *rphy; 846 struct mptsas_portinfo *p; 847 int i; 848 MPT_ADAPTER *ioc = hd->ioc; 849 850 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 851 if (!vtarget) 852 return -ENOMEM; 853 854 vtarget->starget = starget; 855 vtarget->ioc_id = ioc->id; 856 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 857 id = starget->id; 858 channel = 0; 859 860 /* 861 * RAID volumes placed beyond the last expected port. 862 */ 863 if (starget->channel == MPTSAS_RAID_CHANNEL) { 864 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) 865 if (id == ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID) 866 channel = ioc->raid_data.pIocPg2->RaidVolume[i].VolumeBus; 867 goto out; 868 } 869 870 rphy = dev_to_rphy(starget->dev.parent); 871 mutex_lock(&ioc->sas_topology_mutex); 872 list_for_each_entry(p, &ioc->sas_topology, list) { 873 for (i = 0; i < p->num_phys; i++) { 874 if (p->phy_info[i].attached.sas_address != 875 rphy->identify.sas_address) 876 continue; 877 id = p->phy_info[i].attached.id; 878 channel = p->phy_info[i].attached.channel; 879 mptsas_set_starget(&p->phy_info[i], starget); 880 881 /* 882 * Exposing hidden raid components 883 */ 884 if (mptscsih_is_phys_disk(ioc, channel, id)) { 885 id = mptscsih_raid_id_to_num(ioc, 886 channel, id); 887 vtarget->tflags |= 888 MPT_TARGET_FLAGS_RAID_COMPONENT; 889 p->phy_info[i].attached.phys_disk_num = id; 890 } 891 mutex_unlock(&ioc->sas_topology_mutex); 892 goto out; 893 } 894 } 895 mutex_unlock(&ioc->sas_topology_mutex); 896 897 kfree(vtarget); 898 return -ENXIO; 899 900 out: 901 vtarget->id = id; 902 vtarget->channel = channel; 903 starget->hostdata = vtarget; 904 return 0; 905 } 906 907 static void 908 mptsas_target_destroy(struct scsi_target *starget) 909 { 910 struct Scsi_Host *host = dev_to_shost(&starget->dev); 911 MPT_SCSI_HOST *hd = shost_priv(host); 912 struct sas_rphy *rphy; 913 struct mptsas_portinfo *p; 914 int i; 915 MPT_ADAPTER *ioc = hd->ioc; 916 917 if (!starget->hostdata) 918 return; 919 920 if (starget->channel == MPTSAS_RAID_CHANNEL) 921 goto out; 922 923 rphy = dev_to_rphy(starget->dev.parent); 924 list_for_each_entry(p, &ioc->sas_topology, list) { 925 for (i = 0; i < p->num_phys; i++) { 926 if (p->phy_info[i].attached.sas_address != 927 rphy->identify.sas_address) 928 continue; 929 mptsas_set_starget(&p->phy_info[i], NULL); 930 goto out; 931 } 932 } 933 934 out: 935 kfree(starget->hostdata); 936 starget->hostdata = NULL; 937 } 938 939 940 static int 941 mptsas_slave_alloc(struct scsi_device *sdev) 942 { 943 struct Scsi_Host *host = sdev->host; 944 MPT_SCSI_HOST *hd = shost_priv(host); 945 struct sas_rphy *rphy; 946 struct mptsas_portinfo *p; 947 VirtDevice *vdevice; 948 struct scsi_target *starget; 949 int i; 950 MPT_ADAPTER *ioc = hd->ioc; 951 952 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 953 if (!vdevice) { 954 printk(MYIOC_s_ERR_FMT "slave_alloc kzalloc(%zd) FAILED!\n", 955 ioc->name, sizeof(VirtDevice)); 956 return -ENOMEM; 957 } 958 starget = scsi_target(sdev); 959 vdevice->vtarget = starget->hostdata; 960 961 if (sdev->channel == MPTSAS_RAID_CHANNEL) 962 goto out; 963 964 rphy = dev_to_rphy(sdev->sdev_target->dev.parent); 965 mutex_lock(&ioc->sas_topology_mutex); 966 list_for_each_entry(p, &ioc->sas_topology, list) { 967 for (i = 0; i < p->num_phys; i++) { 968 if (p->phy_info[i].attached.sas_address != 969 rphy->identify.sas_address) 970 continue; 971 vdevice->lun = sdev->lun; 972 /* 973 * Exposing hidden raid components 974 */ 975 if (mptscsih_is_phys_disk(ioc, 976 p->phy_info[i].attached.channel, 977 p->phy_info[i].attached.id)) 978 sdev->no_uld_attach = 1; 979 mutex_unlock(&ioc->sas_topology_mutex); 980 goto out; 981 } 982 } 983 mutex_unlock(&ioc->sas_topology_mutex); 984 985 kfree(vdevice); 986 return -ENXIO; 987 988 out: 989 vdevice->vtarget->num_luns++; 990 sdev->hostdata = vdevice; 991 return 0; 992 } 993 994 static int 995 mptsas_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 996 { 997 VirtDevice *vdevice = SCpnt->device->hostdata; 998 999 if (!vdevice || !vdevice->vtarget || vdevice->vtarget->deleted) { 1000 SCpnt->result = DID_NO_CONNECT << 16; 1001 done(SCpnt); 1002 return 0; 1003 } 1004 1005 // scsi_print_command(SCpnt); 1006 1007 return mptscsih_qcmd(SCpnt,done); 1008 } 1009 1010 1011 static struct scsi_host_template mptsas_driver_template = { 1012 .module = THIS_MODULE, 1013 .proc_name = "mptsas", 1014 .proc_info = mptscsih_proc_info, 1015 .name = "MPT SPI Host", 1016 .info = mptscsih_info, 1017 .queuecommand = mptsas_qcmd, 1018 .target_alloc = mptsas_target_alloc, 1019 .slave_alloc = mptsas_slave_alloc, 1020 .slave_configure = mptsas_slave_configure, 1021 .target_destroy = mptsas_target_destroy, 1022 .slave_destroy = mptscsih_slave_destroy, 1023 .change_queue_depth = mptscsih_change_queue_depth, 1024 .eh_abort_handler = mptscsih_abort, 1025 .eh_device_reset_handler = mptscsih_dev_reset, 1026 .eh_bus_reset_handler = mptscsih_bus_reset, 1027 .eh_host_reset_handler = mptscsih_host_reset, 1028 .bios_param = mptscsih_bios_param, 1029 .can_queue = MPT_FC_CAN_QUEUE, 1030 .this_id = -1, 1031 .sg_tablesize = MPT_SCSI_SG_DEPTH, 1032 .max_sectors = 8192, 1033 .cmd_per_lun = 7, 1034 .use_clustering = ENABLE_CLUSTERING, 1035 .shost_attrs = mptscsih_host_attrs, 1036 }; 1037 1038 static int mptsas_get_linkerrors(struct sas_phy *phy) 1039 { 1040 MPT_ADAPTER *ioc = phy_to_ioc(phy); 1041 ConfigExtendedPageHeader_t hdr; 1042 CONFIGPARMS cfg; 1043 SasPhyPage1_t *buffer; 1044 dma_addr_t dma_handle; 1045 int error; 1046 1047 /* FIXME: only have link errors on local phys */ 1048 if (!scsi_is_sas_phy_local(phy)) 1049 return -EINVAL; 1050 1051 hdr.PageVersion = MPI_SASPHY1_PAGEVERSION; 1052 hdr.ExtPageLength = 0; 1053 hdr.PageNumber = 1 /* page number 1*/; 1054 hdr.Reserved1 = 0; 1055 hdr.Reserved2 = 0; 1056 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1057 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY; 1058 1059 cfg.cfghdr.ehdr = &hdr; 1060 cfg.physAddr = -1; 1061 cfg.pageAddr = phy->identify.phy_identifier; 1062 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1063 cfg.dir = 0; /* read */ 1064 cfg.timeout = 10; 1065 1066 error = mpt_config(ioc, &cfg); 1067 if (error) 1068 return error; 1069 if (!hdr.ExtPageLength) 1070 return -ENXIO; 1071 1072 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1073 &dma_handle); 1074 if (!buffer) 1075 return -ENOMEM; 1076 1077 cfg.physAddr = dma_handle; 1078 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1079 1080 error = mpt_config(ioc, &cfg); 1081 if (error) 1082 goto out_free_consistent; 1083 1084 mptsas_print_phy_pg1(ioc, buffer); 1085 1086 phy->invalid_dword_count = le32_to_cpu(buffer->InvalidDwordCount); 1087 phy->running_disparity_error_count = 1088 le32_to_cpu(buffer->RunningDisparityErrorCount); 1089 phy->loss_of_dword_sync_count = 1090 le32_to_cpu(buffer->LossDwordSynchCount); 1091 phy->phy_reset_problem_count = 1092 le32_to_cpu(buffer->PhyResetProblemCount); 1093 1094 out_free_consistent: 1095 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1096 buffer, dma_handle); 1097 return error; 1098 } 1099 1100 static int mptsas_mgmt_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 1101 MPT_FRAME_HDR *reply) 1102 { 1103 ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_COMMAND_GOOD; 1104 if (reply != NULL) { 1105 ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_RF_VALID; 1106 memcpy(ioc->sas_mgmt.reply, reply, 1107 min(ioc->reply_sz, 4 * reply->u.reply.MsgLength)); 1108 } 1109 complete(&ioc->sas_mgmt.done); 1110 return 1; 1111 } 1112 1113 static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset) 1114 { 1115 MPT_ADAPTER *ioc = phy_to_ioc(phy); 1116 SasIoUnitControlRequest_t *req; 1117 SasIoUnitControlReply_t *reply; 1118 MPT_FRAME_HDR *mf; 1119 MPIHeader_t *hdr; 1120 unsigned long timeleft; 1121 int error = -ERESTARTSYS; 1122 1123 /* FIXME: fusion doesn't allow non-local phy reset */ 1124 if (!scsi_is_sas_phy_local(phy)) 1125 return -EINVAL; 1126 1127 /* not implemented for expanders */ 1128 if (phy->identify.target_port_protocols & SAS_PROTOCOL_SMP) 1129 return -ENXIO; 1130 1131 if (mutex_lock_interruptible(&ioc->sas_mgmt.mutex)) 1132 goto out; 1133 1134 mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc); 1135 if (!mf) { 1136 error = -ENOMEM; 1137 goto out_unlock; 1138 } 1139 1140 hdr = (MPIHeader_t *) mf; 1141 req = (SasIoUnitControlRequest_t *)mf; 1142 memset(req, 0, sizeof(SasIoUnitControlRequest_t)); 1143 req->Function = MPI_FUNCTION_SAS_IO_UNIT_CONTROL; 1144 req->MsgContext = hdr->MsgContext; 1145 req->Operation = hard_reset ? 1146 MPI_SAS_OP_PHY_HARD_RESET : MPI_SAS_OP_PHY_LINK_RESET; 1147 req->PhyNum = phy->identify.phy_identifier; 1148 1149 mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf); 1150 1151 timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done, 1152 10 * HZ); 1153 if (!timeleft) { 1154 /* On timeout reset the board */ 1155 mpt_free_msg_frame(ioc, mf); 1156 mpt_HardResetHandler(ioc, CAN_SLEEP); 1157 error = -ETIMEDOUT; 1158 goto out_unlock; 1159 } 1160 1161 /* a reply frame is expected */ 1162 if ((ioc->sas_mgmt.status & 1163 MPT_IOCTL_STATUS_RF_VALID) == 0) { 1164 error = -ENXIO; 1165 goto out_unlock; 1166 } 1167 1168 /* process the completed Reply Message Frame */ 1169 reply = (SasIoUnitControlReply_t *)ioc->sas_mgmt.reply; 1170 if (reply->IOCStatus != MPI_IOCSTATUS_SUCCESS) { 1171 printk(MYIOC_s_INFO_FMT "%s: IOCStatus=0x%X IOCLogInfo=0x%X\n", 1172 ioc->name, __FUNCTION__, reply->IOCStatus, reply->IOCLogInfo); 1173 error = -ENXIO; 1174 goto out_unlock; 1175 } 1176 1177 error = 0; 1178 1179 out_unlock: 1180 mutex_unlock(&ioc->sas_mgmt.mutex); 1181 out: 1182 return error; 1183 } 1184 1185 static int 1186 mptsas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) 1187 { 1188 MPT_ADAPTER *ioc = rphy_to_ioc(rphy); 1189 int i, error; 1190 struct mptsas_portinfo *p; 1191 struct mptsas_enclosure enclosure_info; 1192 u64 enclosure_handle; 1193 1194 mutex_lock(&ioc->sas_topology_mutex); 1195 list_for_each_entry(p, &ioc->sas_topology, list) { 1196 for (i = 0; i < p->num_phys; i++) { 1197 if (p->phy_info[i].attached.sas_address == 1198 rphy->identify.sas_address) { 1199 enclosure_handle = p->phy_info[i]. 1200 attached.handle_enclosure; 1201 goto found_info; 1202 } 1203 } 1204 } 1205 mutex_unlock(&ioc->sas_topology_mutex); 1206 return -ENXIO; 1207 1208 found_info: 1209 mutex_unlock(&ioc->sas_topology_mutex); 1210 memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure)); 1211 error = mptsas_sas_enclosure_pg0(ioc, &enclosure_info, 1212 (MPI_SAS_ENCLOS_PGAD_FORM_HANDLE << 1213 MPI_SAS_ENCLOS_PGAD_FORM_SHIFT), enclosure_handle); 1214 if (!error) 1215 *identifier = enclosure_info.enclosure_logical_id; 1216 return error; 1217 } 1218 1219 static int 1220 mptsas_get_bay_identifier(struct sas_rphy *rphy) 1221 { 1222 MPT_ADAPTER *ioc = rphy_to_ioc(rphy); 1223 struct mptsas_portinfo *p; 1224 int i, rc; 1225 1226 mutex_lock(&ioc->sas_topology_mutex); 1227 list_for_each_entry(p, &ioc->sas_topology, list) { 1228 for (i = 0; i < p->num_phys; i++) { 1229 if (p->phy_info[i].attached.sas_address == 1230 rphy->identify.sas_address) { 1231 rc = p->phy_info[i].attached.slot; 1232 goto out; 1233 } 1234 } 1235 } 1236 rc = -ENXIO; 1237 out: 1238 mutex_unlock(&ioc->sas_topology_mutex); 1239 return rc; 1240 } 1241 1242 static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, 1243 struct request *req) 1244 { 1245 MPT_ADAPTER *ioc = ((MPT_SCSI_HOST *) shost->hostdata)->ioc; 1246 MPT_FRAME_HDR *mf; 1247 SmpPassthroughRequest_t *smpreq; 1248 struct request *rsp = req->next_rq; 1249 int ret; 1250 int flagsLength; 1251 unsigned long timeleft; 1252 char *psge; 1253 dma_addr_t dma_addr_in = 0; 1254 dma_addr_t dma_addr_out = 0; 1255 u64 sas_address = 0; 1256 1257 if (!rsp) { 1258 printk(MYIOC_s_ERR_FMT "%s: the smp response space is missing\n", 1259 ioc->name, __FUNCTION__); 1260 return -EINVAL; 1261 } 1262 1263 /* do we need to support multiple segments? */ 1264 if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { 1265 printk(MYIOC_s_ERR_FMT "%s: multiple segments req %u %u, rsp %u %u\n", 1266 ioc->name, __FUNCTION__, req->bio->bi_vcnt, req->data_len, 1267 rsp->bio->bi_vcnt, rsp->data_len); 1268 return -EINVAL; 1269 } 1270 1271 ret = mutex_lock_interruptible(&ioc->sas_mgmt.mutex); 1272 if (ret) 1273 goto out; 1274 1275 mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc); 1276 if (!mf) { 1277 ret = -ENOMEM; 1278 goto out_unlock; 1279 } 1280 1281 smpreq = (SmpPassthroughRequest_t *)mf; 1282 memset(smpreq, 0, sizeof(*smpreq)); 1283 1284 smpreq->RequestDataLength = cpu_to_le16(req->data_len - 4); 1285 smpreq->Function = MPI_FUNCTION_SMP_PASSTHROUGH; 1286 1287 if (rphy) 1288 sas_address = rphy->identify.sas_address; 1289 else { 1290 struct mptsas_portinfo *port_info; 1291 1292 mutex_lock(&ioc->sas_topology_mutex); 1293 port_info = mptsas_find_portinfo_by_handle(ioc, ioc->handle); 1294 if (port_info && port_info->phy_info) 1295 sas_address = 1296 port_info->phy_info[0].phy->identify.sas_address; 1297 mutex_unlock(&ioc->sas_topology_mutex); 1298 } 1299 1300 *((u64 *)&smpreq->SASAddress) = cpu_to_le64(sas_address); 1301 1302 psge = (char *) 1303 (((int *) mf) + (offsetof(SmpPassthroughRequest_t, SGL) / 4)); 1304 1305 /* request */ 1306 flagsLength = (MPI_SGE_FLAGS_SIMPLE_ELEMENT | 1307 MPI_SGE_FLAGS_END_OF_BUFFER | 1308 MPI_SGE_FLAGS_DIRECTION | 1309 mpt_addr_size()) << MPI_SGE_FLAGS_SHIFT; 1310 flagsLength |= (req->data_len - 4); 1311 1312 dma_addr_out = pci_map_single(ioc->pcidev, bio_data(req->bio), 1313 req->data_len, PCI_DMA_BIDIRECTIONAL); 1314 if (!dma_addr_out) 1315 goto put_mf; 1316 mpt_add_sge(psge, flagsLength, dma_addr_out); 1317 psge += (sizeof(u32) + sizeof(dma_addr_t)); 1318 1319 /* response */ 1320 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ; 1321 flagsLength |= rsp->data_len + 4; 1322 dma_addr_in = pci_map_single(ioc->pcidev, bio_data(rsp->bio), 1323 rsp->data_len, PCI_DMA_BIDIRECTIONAL); 1324 if (!dma_addr_in) 1325 goto unmap; 1326 mpt_add_sge(psge, flagsLength, dma_addr_in); 1327 1328 mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf); 1329 1330 timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done, 10 * HZ); 1331 if (!timeleft) { 1332 printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __FUNCTION__); 1333 /* On timeout reset the board */ 1334 mpt_HardResetHandler(ioc, CAN_SLEEP); 1335 ret = -ETIMEDOUT; 1336 goto unmap; 1337 } 1338 mf = NULL; 1339 1340 if (ioc->sas_mgmt.status & MPT_IOCTL_STATUS_RF_VALID) { 1341 SmpPassthroughReply_t *smprep; 1342 1343 smprep = (SmpPassthroughReply_t *)ioc->sas_mgmt.reply; 1344 memcpy(req->sense, smprep, sizeof(*smprep)); 1345 req->sense_len = sizeof(*smprep); 1346 req->data_len = 0; 1347 rsp->data_len -= smprep->ResponseDataLength; 1348 } else { 1349 printk(MYIOC_s_ERR_FMT "%s: smp passthru reply failed to be returned\n", 1350 ioc->name, __FUNCTION__); 1351 ret = -ENXIO; 1352 } 1353 unmap: 1354 if (dma_addr_out) 1355 pci_unmap_single(ioc->pcidev, dma_addr_out, req->data_len, 1356 PCI_DMA_BIDIRECTIONAL); 1357 if (dma_addr_in) 1358 pci_unmap_single(ioc->pcidev, dma_addr_in, rsp->data_len, 1359 PCI_DMA_BIDIRECTIONAL); 1360 put_mf: 1361 if (mf) 1362 mpt_free_msg_frame(ioc, mf); 1363 out_unlock: 1364 mutex_unlock(&ioc->sas_mgmt.mutex); 1365 out: 1366 return ret; 1367 } 1368 1369 static struct sas_function_template mptsas_transport_functions = { 1370 .get_linkerrors = mptsas_get_linkerrors, 1371 .get_enclosure_identifier = mptsas_get_enclosure_identifier, 1372 .get_bay_identifier = mptsas_get_bay_identifier, 1373 .phy_reset = mptsas_phy_reset, 1374 .smp_handler = mptsas_smp_handler, 1375 }; 1376 1377 static struct scsi_transport_template *mptsas_transport_template; 1378 1379 static int 1380 mptsas_sas_io_unit_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info) 1381 { 1382 ConfigExtendedPageHeader_t hdr; 1383 CONFIGPARMS cfg; 1384 SasIOUnitPage0_t *buffer; 1385 dma_addr_t dma_handle; 1386 int error, i; 1387 1388 hdr.PageVersion = MPI_SASIOUNITPAGE0_PAGEVERSION; 1389 hdr.ExtPageLength = 0; 1390 hdr.PageNumber = 0; 1391 hdr.Reserved1 = 0; 1392 hdr.Reserved2 = 0; 1393 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1394 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT; 1395 1396 cfg.cfghdr.ehdr = &hdr; 1397 cfg.physAddr = -1; 1398 cfg.pageAddr = 0; 1399 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1400 cfg.dir = 0; /* read */ 1401 cfg.timeout = 10; 1402 1403 error = mpt_config(ioc, &cfg); 1404 if (error) 1405 goto out; 1406 if (!hdr.ExtPageLength) { 1407 error = -ENXIO; 1408 goto out; 1409 } 1410 1411 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1412 &dma_handle); 1413 if (!buffer) { 1414 error = -ENOMEM; 1415 goto out; 1416 } 1417 1418 cfg.physAddr = dma_handle; 1419 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1420 1421 error = mpt_config(ioc, &cfg); 1422 if (error) 1423 goto out_free_consistent; 1424 1425 port_info->num_phys = buffer->NumPhys; 1426 port_info->phy_info = kcalloc(port_info->num_phys, 1427 sizeof(*port_info->phy_info),GFP_KERNEL); 1428 if (!port_info->phy_info) { 1429 error = -ENOMEM; 1430 goto out_free_consistent; 1431 } 1432 1433 ioc->nvdata_version_persistent = 1434 le16_to_cpu(buffer->NvdataVersionPersistent); 1435 ioc->nvdata_version_default = 1436 le16_to_cpu(buffer->NvdataVersionDefault); 1437 1438 for (i = 0; i < port_info->num_phys; i++) { 1439 mptsas_print_phy_data(ioc, &buffer->PhyData[i]); 1440 port_info->phy_info[i].phy_id = i; 1441 port_info->phy_info[i].port_id = 1442 buffer->PhyData[i].Port; 1443 port_info->phy_info[i].negotiated_link_rate = 1444 buffer->PhyData[i].NegotiatedLinkRate; 1445 port_info->phy_info[i].portinfo = port_info; 1446 port_info->phy_info[i].handle = 1447 le16_to_cpu(buffer->PhyData[i].ControllerDevHandle); 1448 } 1449 1450 out_free_consistent: 1451 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1452 buffer, dma_handle); 1453 out: 1454 return error; 1455 } 1456 1457 static int 1458 mptsas_sas_io_unit_pg1(MPT_ADAPTER *ioc) 1459 { 1460 ConfigExtendedPageHeader_t hdr; 1461 CONFIGPARMS cfg; 1462 SasIOUnitPage1_t *buffer; 1463 dma_addr_t dma_handle; 1464 int error; 1465 u16 device_missing_delay; 1466 1467 memset(&hdr, 0, sizeof(ConfigExtendedPageHeader_t)); 1468 memset(&cfg, 0, sizeof(CONFIGPARMS)); 1469 1470 cfg.cfghdr.ehdr = &hdr; 1471 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1472 cfg.timeout = 10; 1473 cfg.cfghdr.ehdr->PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1474 cfg.cfghdr.ehdr->ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT; 1475 cfg.cfghdr.ehdr->PageVersion = MPI_SASIOUNITPAGE1_PAGEVERSION; 1476 cfg.cfghdr.ehdr->PageNumber = 1; 1477 1478 error = mpt_config(ioc, &cfg); 1479 if (error) 1480 goto out; 1481 if (!hdr.ExtPageLength) { 1482 error = -ENXIO; 1483 goto out; 1484 } 1485 1486 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1487 &dma_handle); 1488 if (!buffer) { 1489 error = -ENOMEM; 1490 goto out; 1491 } 1492 1493 cfg.physAddr = dma_handle; 1494 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1495 1496 error = mpt_config(ioc, &cfg); 1497 if (error) 1498 goto out_free_consistent; 1499 1500 ioc->io_missing_delay = 1501 le16_to_cpu(buffer->IODeviceMissingDelay); 1502 device_missing_delay = le16_to_cpu(buffer->ReportDeviceMissingDelay); 1503 ioc->device_missing_delay = (device_missing_delay & MPI_SAS_IOUNIT1_REPORT_MISSING_UNIT_16) ? 1504 (device_missing_delay & MPI_SAS_IOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16 : 1505 device_missing_delay & MPI_SAS_IOUNIT1_REPORT_MISSING_TIMEOUT_MASK; 1506 1507 out_free_consistent: 1508 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1509 buffer, dma_handle); 1510 out: 1511 return error; 1512 } 1513 1514 static int 1515 mptsas_sas_phy_pg0(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, 1516 u32 form, u32 form_specific) 1517 { 1518 ConfigExtendedPageHeader_t hdr; 1519 CONFIGPARMS cfg; 1520 SasPhyPage0_t *buffer; 1521 dma_addr_t dma_handle; 1522 int error; 1523 1524 hdr.PageVersion = MPI_SASPHY0_PAGEVERSION; 1525 hdr.ExtPageLength = 0; 1526 hdr.PageNumber = 0; 1527 hdr.Reserved1 = 0; 1528 hdr.Reserved2 = 0; 1529 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1530 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY; 1531 1532 cfg.cfghdr.ehdr = &hdr; 1533 cfg.dir = 0; /* read */ 1534 cfg.timeout = 10; 1535 1536 /* Get Phy Pg 0 for each Phy. */ 1537 cfg.physAddr = -1; 1538 cfg.pageAddr = form + form_specific; 1539 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1540 1541 error = mpt_config(ioc, &cfg); 1542 if (error) 1543 goto out; 1544 1545 if (!hdr.ExtPageLength) { 1546 error = -ENXIO; 1547 goto out; 1548 } 1549 1550 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1551 &dma_handle); 1552 if (!buffer) { 1553 error = -ENOMEM; 1554 goto out; 1555 } 1556 1557 cfg.physAddr = dma_handle; 1558 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1559 1560 error = mpt_config(ioc, &cfg); 1561 if (error) 1562 goto out_free_consistent; 1563 1564 mptsas_print_phy_pg0(ioc, buffer); 1565 1566 phy_info->hw_link_rate = buffer->HwLinkRate; 1567 phy_info->programmed_link_rate = buffer->ProgrammedLinkRate; 1568 phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle); 1569 phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle); 1570 1571 out_free_consistent: 1572 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1573 buffer, dma_handle); 1574 out: 1575 return error; 1576 } 1577 1578 static int 1579 mptsas_sas_device_pg0(MPT_ADAPTER *ioc, struct mptsas_devinfo *device_info, 1580 u32 form, u32 form_specific) 1581 { 1582 ConfigExtendedPageHeader_t hdr; 1583 CONFIGPARMS cfg; 1584 SasDevicePage0_t *buffer; 1585 dma_addr_t dma_handle; 1586 __le64 sas_address; 1587 int error=0; 1588 1589 if (ioc->sas_discovery_runtime && 1590 mptsas_is_end_device(device_info)) 1591 goto out; 1592 1593 hdr.PageVersion = MPI_SASDEVICE0_PAGEVERSION; 1594 hdr.ExtPageLength = 0; 1595 hdr.PageNumber = 0; 1596 hdr.Reserved1 = 0; 1597 hdr.Reserved2 = 0; 1598 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1599 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE; 1600 1601 cfg.cfghdr.ehdr = &hdr; 1602 cfg.pageAddr = form + form_specific; 1603 cfg.physAddr = -1; 1604 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1605 cfg.dir = 0; /* read */ 1606 cfg.timeout = 10; 1607 1608 memset(device_info, 0, sizeof(struct mptsas_devinfo)); 1609 error = mpt_config(ioc, &cfg); 1610 if (error) 1611 goto out; 1612 if (!hdr.ExtPageLength) { 1613 error = -ENXIO; 1614 goto out; 1615 } 1616 1617 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1618 &dma_handle); 1619 if (!buffer) { 1620 error = -ENOMEM; 1621 goto out; 1622 } 1623 1624 cfg.physAddr = dma_handle; 1625 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1626 1627 error = mpt_config(ioc, &cfg); 1628 if (error) 1629 goto out_free_consistent; 1630 1631 mptsas_print_device_pg0(ioc, buffer); 1632 1633 device_info->handle = le16_to_cpu(buffer->DevHandle); 1634 device_info->handle_parent = le16_to_cpu(buffer->ParentDevHandle); 1635 device_info->handle_enclosure = 1636 le16_to_cpu(buffer->EnclosureHandle); 1637 device_info->slot = le16_to_cpu(buffer->Slot); 1638 device_info->phy_id = buffer->PhyNum; 1639 device_info->port_id = buffer->PhysicalPort; 1640 device_info->id = buffer->TargetID; 1641 device_info->phys_disk_num = ~0; 1642 device_info->channel = buffer->Bus; 1643 memcpy(&sas_address, &buffer->SASAddress, sizeof(__le64)); 1644 device_info->sas_address = le64_to_cpu(sas_address); 1645 device_info->device_info = 1646 le32_to_cpu(buffer->DeviceInfo); 1647 1648 out_free_consistent: 1649 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1650 buffer, dma_handle); 1651 out: 1652 return error; 1653 } 1654 1655 static int 1656 mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info, 1657 u32 form, u32 form_specific) 1658 { 1659 ConfigExtendedPageHeader_t hdr; 1660 CONFIGPARMS cfg; 1661 SasExpanderPage0_t *buffer; 1662 dma_addr_t dma_handle; 1663 int i, error; 1664 1665 hdr.PageVersion = MPI_SASEXPANDER0_PAGEVERSION; 1666 hdr.ExtPageLength = 0; 1667 hdr.PageNumber = 0; 1668 hdr.Reserved1 = 0; 1669 hdr.Reserved2 = 0; 1670 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1671 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_EXPANDER; 1672 1673 cfg.cfghdr.ehdr = &hdr; 1674 cfg.physAddr = -1; 1675 cfg.pageAddr = form + form_specific; 1676 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1677 cfg.dir = 0; /* read */ 1678 cfg.timeout = 10; 1679 1680 memset(port_info, 0, sizeof(struct mptsas_portinfo)); 1681 error = mpt_config(ioc, &cfg); 1682 if (error) 1683 goto out; 1684 1685 if (!hdr.ExtPageLength) { 1686 error = -ENXIO; 1687 goto out; 1688 } 1689 1690 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1691 &dma_handle); 1692 if (!buffer) { 1693 error = -ENOMEM; 1694 goto out; 1695 } 1696 1697 cfg.physAddr = dma_handle; 1698 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1699 1700 error = mpt_config(ioc, &cfg); 1701 if (error) 1702 goto out_free_consistent; 1703 1704 /* save config data */ 1705 port_info->num_phys = buffer->NumPhys; 1706 port_info->phy_info = kcalloc(port_info->num_phys, 1707 sizeof(*port_info->phy_info),GFP_KERNEL); 1708 if (!port_info->phy_info) { 1709 error = -ENOMEM; 1710 goto out_free_consistent; 1711 } 1712 1713 for (i = 0; i < port_info->num_phys; i++) { 1714 port_info->phy_info[i].portinfo = port_info; 1715 port_info->phy_info[i].handle = 1716 le16_to_cpu(buffer->DevHandle); 1717 } 1718 1719 out_free_consistent: 1720 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1721 buffer, dma_handle); 1722 out: 1723 return error; 1724 } 1725 1726 static int 1727 mptsas_sas_expander_pg1(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, 1728 u32 form, u32 form_specific) 1729 { 1730 ConfigExtendedPageHeader_t hdr; 1731 CONFIGPARMS cfg; 1732 SasExpanderPage1_t *buffer; 1733 dma_addr_t dma_handle; 1734 int error=0; 1735 1736 if (ioc->sas_discovery_runtime && 1737 mptsas_is_end_device(&phy_info->attached)) 1738 goto out; 1739 1740 hdr.PageVersion = MPI_SASEXPANDER0_PAGEVERSION; 1741 hdr.ExtPageLength = 0; 1742 hdr.PageNumber = 1; 1743 hdr.Reserved1 = 0; 1744 hdr.Reserved2 = 0; 1745 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; 1746 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_EXPANDER; 1747 1748 cfg.cfghdr.ehdr = &hdr; 1749 cfg.physAddr = -1; 1750 cfg.pageAddr = form + form_specific; 1751 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 1752 cfg.dir = 0; /* read */ 1753 cfg.timeout = 10; 1754 1755 error = mpt_config(ioc, &cfg); 1756 if (error) 1757 goto out; 1758 1759 if (!hdr.ExtPageLength) { 1760 error = -ENXIO; 1761 goto out; 1762 } 1763 1764 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1765 &dma_handle); 1766 if (!buffer) { 1767 error = -ENOMEM; 1768 goto out; 1769 } 1770 1771 cfg.physAddr = dma_handle; 1772 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 1773 1774 error = mpt_config(ioc, &cfg); 1775 if (error) 1776 goto out_free_consistent; 1777 1778 1779 mptsas_print_expander_pg1(ioc, buffer); 1780 1781 /* save config data */ 1782 phy_info->phy_id = buffer->PhyIdentifier; 1783 phy_info->port_id = buffer->PhysicalPort; 1784 phy_info->negotiated_link_rate = buffer->NegotiatedLinkRate; 1785 phy_info->programmed_link_rate = buffer->ProgrammedLinkRate; 1786 phy_info->hw_link_rate = buffer->HwLinkRate; 1787 phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle); 1788 phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle); 1789 1790 out_free_consistent: 1791 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, 1792 buffer, dma_handle); 1793 out: 1794 return error; 1795 } 1796 1797 static void 1798 mptsas_parse_device_info(struct sas_identify *identify, 1799 struct mptsas_devinfo *device_info) 1800 { 1801 u16 protocols; 1802 1803 identify->sas_address = device_info->sas_address; 1804 identify->phy_identifier = device_info->phy_id; 1805 1806 /* 1807 * Fill in Phy Initiator Port Protocol. 1808 * Bits 6:3, more than one bit can be set, fall through cases. 1809 */ 1810 protocols = device_info->device_info & 0x78; 1811 identify->initiator_port_protocols = 0; 1812 if (protocols & MPI_SAS_DEVICE_INFO_SSP_INITIATOR) 1813 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP; 1814 if (protocols & MPI_SAS_DEVICE_INFO_STP_INITIATOR) 1815 identify->initiator_port_protocols |= SAS_PROTOCOL_STP; 1816 if (protocols & MPI_SAS_DEVICE_INFO_SMP_INITIATOR) 1817 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP; 1818 if (protocols & MPI_SAS_DEVICE_INFO_SATA_HOST) 1819 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA; 1820 1821 /* 1822 * Fill in Phy Target Port Protocol. 1823 * Bits 10:7, more than one bit can be set, fall through cases. 1824 */ 1825 protocols = device_info->device_info & 0x780; 1826 identify->target_port_protocols = 0; 1827 if (protocols & MPI_SAS_DEVICE_INFO_SSP_TARGET) 1828 identify->target_port_protocols |= SAS_PROTOCOL_SSP; 1829 if (protocols & MPI_SAS_DEVICE_INFO_STP_TARGET) 1830 identify->target_port_protocols |= SAS_PROTOCOL_STP; 1831 if (protocols & MPI_SAS_DEVICE_INFO_SMP_TARGET) 1832 identify->target_port_protocols |= SAS_PROTOCOL_SMP; 1833 if (protocols & MPI_SAS_DEVICE_INFO_SATA_DEVICE) 1834 identify->target_port_protocols |= SAS_PROTOCOL_SATA; 1835 1836 /* 1837 * Fill in Attached device type. 1838 */ 1839 switch (device_info->device_info & 1840 MPI_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) { 1841 case MPI_SAS_DEVICE_INFO_NO_DEVICE: 1842 identify->device_type = SAS_PHY_UNUSED; 1843 break; 1844 case MPI_SAS_DEVICE_INFO_END_DEVICE: 1845 identify->device_type = SAS_END_DEVICE; 1846 break; 1847 case MPI_SAS_DEVICE_INFO_EDGE_EXPANDER: 1848 identify->device_type = SAS_EDGE_EXPANDER_DEVICE; 1849 break; 1850 case MPI_SAS_DEVICE_INFO_FANOUT_EXPANDER: 1851 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE; 1852 break; 1853 } 1854 } 1855 1856 static int mptsas_probe_one_phy(struct device *dev, 1857 struct mptsas_phyinfo *phy_info, int index, int local) 1858 { 1859 MPT_ADAPTER *ioc; 1860 struct sas_phy *phy; 1861 struct sas_port *port; 1862 int error = 0; 1863 1864 if (!dev) { 1865 error = -ENODEV; 1866 goto out; 1867 } 1868 1869 if (!phy_info->phy) { 1870 phy = sas_phy_alloc(dev, index); 1871 if (!phy) { 1872 error = -ENOMEM; 1873 goto out; 1874 } 1875 } else 1876 phy = phy_info->phy; 1877 1878 mptsas_parse_device_info(&phy->identify, &phy_info->identify); 1879 1880 /* 1881 * Set Negotiated link rate. 1882 */ 1883 switch (phy_info->negotiated_link_rate) { 1884 case MPI_SAS_IOUNIT0_RATE_PHY_DISABLED: 1885 phy->negotiated_linkrate = SAS_PHY_DISABLED; 1886 break; 1887 case MPI_SAS_IOUNIT0_RATE_FAILED_SPEED_NEGOTIATION: 1888 phy->negotiated_linkrate = SAS_LINK_RATE_FAILED; 1889 break; 1890 case MPI_SAS_IOUNIT0_RATE_1_5: 1891 phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS; 1892 break; 1893 case MPI_SAS_IOUNIT0_RATE_3_0: 1894 phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS; 1895 break; 1896 case MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE: 1897 case MPI_SAS_IOUNIT0_RATE_UNKNOWN: 1898 default: 1899 phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN; 1900 break; 1901 } 1902 1903 /* 1904 * Set Max hardware link rate. 1905 */ 1906 switch (phy_info->hw_link_rate & MPI_SAS_PHY0_PRATE_MAX_RATE_MASK) { 1907 case MPI_SAS_PHY0_HWRATE_MAX_RATE_1_5: 1908 phy->maximum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; 1909 break; 1910 case MPI_SAS_PHY0_PRATE_MAX_RATE_3_0: 1911 phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS; 1912 break; 1913 default: 1914 break; 1915 } 1916 1917 /* 1918 * Set Max programmed link rate. 1919 */ 1920 switch (phy_info->programmed_link_rate & 1921 MPI_SAS_PHY0_PRATE_MAX_RATE_MASK) { 1922 case MPI_SAS_PHY0_PRATE_MAX_RATE_1_5: 1923 phy->maximum_linkrate = SAS_LINK_RATE_1_5_GBPS; 1924 break; 1925 case MPI_SAS_PHY0_PRATE_MAX_RATE_3_0: 1926 phy->maximum_linkrate = SAS_LINK_RATE_3_0_GBPS; 1927 break; 1928 default: 1929 break; 1930 } 1931 1932 /* 1933 * Set Min hardware link rate. 1934 */ 1935 switch (phy_info->hw_link_rate & MPI_SAS_PHY0_HWRATE_MIN_RATE_MASK) { 1936 case MPI_SAS_PHY0_HWRATE_MIN_RATE_1_5: 1937 phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; 1938 break; 1939 case MPI_SAS_PHY0_PRATE_MIN_RATE_3_0: 1940 phy->minimum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS; 1941 break; 1942 default: 1943 break; 1944 } 1945 1946 /* 1947 * Set Min programmed link rate. 1948 */ 1949 switch (phy_info->programmed_link_rate & 1950 MPI_SAS_PHY0_PRATE_MIN_RATE_MASK) { 1951 case MPI_SAS_PHY0_PRATE_MIN_RATE_1_5: 1952 phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; 1953 break; 1954 case MPI_SAS_PHY0_PRATE_MIN_RATE_3_0: 1955 phy->minimum_linkrate = SAS_LINK_RATE_3_0_GBPS; 1956 break; 1957 default: 1958 break; 1959 } 1960 1961 if (!phy_info->phy) { 1962 1963 error = sas_phy_add(phy); 1964 if (error) { 1965 sas_phy_free(phy); 1966 goto out; 1967 } 1968 phy_info->phy = phy; 1969 } 1970 1971 if (!phy_info->attached.handle || 1972 !phy_info->port_details) 1973 goto out; 1974 1975 port = mptsas_get_port(phy_info); 1976 ioc = phy_to_ioc(phy_info->phy); 1977 1978 if (phy_info->sas_port_add_phy) { 1979 1980 if (!port) { 1981 port = sas_port_alloc_num(dev); 1982 if (!port) { 1983 error = -ENOMEM; 1984 goto out; 1985 } 1986 error = sas_port_add(port); 1987 if (error) { 1988 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1989 "%s: exit at line=%d\n", ioc->name, 1990 __FUNCTION__, __LINE__)); 1991 goto out; 1992 } 1993 mptsas_set_port(ioc, phy_info, port); 1994 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1995 "sas_port_alloc: port=%p dev=%p port_id=%d\n", 1996 ioc->name, port, dev, port->port_identifier)); 1997 } 1998 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_port_add_phy: phy_id=%d\n", 1999 ioc->name, phy_info->phy_id)); 2000 sas_port_add_phy(port, phy_info->phy); 2001 phy_info->sas_port_add_phy = 0; 2002 } 2003 2004 if (!mptsas_get_rphy(phy_info) && port && !port->rphy) { 2005 2006 struct sas_rphy *rphy; 2007 struct device *parent; 2008 struct sas_identify identify; 2009 2010 parent = dev->parent->parent; 2011 /* 2012 * Let the hotplug_work thread handle processing 2013 * the adding/removing of devices that occur 2014 * after start of day. 2015 */ 2016 if (ioc->sas_discovery_runtime && 2017 mptsas_is_end_device(&phy_info->attached)) 2018 goto out; 2019 2020 mptsas_parse_device_info(&identify, &phy_info->attached); 2021 if (scsi_is_host_device(parent)) { 2022 struct mptsas_portinfo *port_info; 2023 int i; 2024 2025 mutex_lock(&ioc->sas_topology_mutex); 2026 port_info = mptsas_find_portinfo_by_handle(ioc, 2027 ioc->handle); 2028 mutex_unlock(&ioc->sas_topology_mutex); 2029 2030 for (i = 0; i < port_info->num_phys; i++) 2031 if (port_info->phy_info[i].identify.sas_address == 2032 identify.sas_address) { 2033 sas_port_mark_backlink(port); 2034 goto out; 2035 } 2036 2037 } else if (scsi_is_sas_rphy(parent)) { 2038 struct sas_rphy *parent_rphy = dev_to_rphy(parent); 2039 if (identify.sas_address == 2040 parent_rphy->identify.sas_address) { 2041 sas_port_mark_backlink(port); 2042 goto out; 2043 } 2044 } 2045 2046 switch (identify.device_type) { 2047 case SAS_END_DEVICE: 2048 rphy = sas_end_device_alloc(port); 2049 break; 2050 case SAS_EDGE_EXPANDER_DEVICE: 2051 case SAS_FANOUT_EXPANDER_DEVICE: 2052 rphy = sas_expander_alloc(port, identify.device_type); 2053 break; 2054 default: 2055 rphy = NULL; 2056 break; 2057 } 2058 if (!rphy) { 2059 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2060 "%s: exit at line=%d\n", ioc->name, 2061 __FUNCTION__, __LINE__)); 2062 goto out; 2063 } 2064 2065 rphy->identify = identify; 2066 error = sas_rphy_add(rphy); 2067 if (error) { 2068 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2069 "%s: exit at line=%d\n", ioc->name, 2070 __FUNCTION__, __LINE__)); 2071 sas_rphy_free(rphy); 2072 goto out; 2073 } 2074 mptsas_set_rphy(ioc, phy_info, rphy); 2075 } 2076 2077 out: 2078 return error; 2079 } 2080 2081 static int 2082 mptsas_probe_hba_phys(MPT_ADAPTER *ioc) 2083 { 2084 struct mptsas_portinfo *port_info, *hba; 2085 int error = -ENOMEM, i; 2086 2087 hba = kzalloc(sizeof(*port_info), GFP_KERNEL); 2088 if (! hba) 2089 goto out; 2090 2091 error = mptsas_sas_io_unit_pg0(ioc, hba); 2092 if (error) 2093 goto out_free_port_info; 2094 2095 mptsas_sas_io_unit_pg1(ioc); 2096 mutex_lock(&ioc->sas_topology_mutex); 2097 ioc->handle = hba->phy_info[0].handle; 2098 port_info = mptsas_find_portinfo_by_handle(ioc, ioc->handle); 2099 if (!port_info) { 2100 port_info = hba; 2101 list_add_tail(&port_info->list, &ioc->sas_topology); 2102 } else { 2103 for (i = 0; i < hba->num_phys; i++) { 2104 port_info->phy_info[i].negotiated_link_rate = 2105 hba->phy_info[i].negotiated_link_rate; 2106 port_info->phy_info[i].handle = 2107 hba->phy_info[i].handle; 2108 port_info->phy_info[i].port_id = 2109 hba->phy_info[i].port_id; 2110 } 2111 kfree(hba->phy_info); 2112 kfree(hba); 2113 hba = NULL; 2114 } 2115 mutex_unlock(&ioc->sas_topology_mutex); 2116 for (i = 0; i < port_info->num_phys; i++) { 2117 mptsas_sas_phy_pg0(ioc, &port_info->phy_info[i], 2118 (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER << 2119 MPI_SAS_PHY_PGAD_FORM_SHIFT), i); 2120 2121 mptsas_sas_device_pg0(ioc, &port_info->phy_info[i].identify, 2122 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE << 2123 MPI_SAS_DEVICE_PGAD_FORM_SHIFT), 2124 port_info->phy_info[i].handle); 2125 port_info->phy_info[i].identify.phy_id = 2126 port_info->phy_info[i].phy_id = i; 2127 if (port_info->phy_info[i].attached.handle) 2128 mptsas_sas_device_pg0(ioc, 2129 &port_info->phy_info[i].attached, 2130 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE << 2131 MPI_SAS_DEVICE_PGAD_FORM_SHIFT), 2132 port_info->phy_info[i].attached.handle); 2133 } 2134 2135 mptsas_setup_wide_ports(ioc, port_info); 2136 2137 for (i = 0; i < port_info->num_phys; i++, ioc->sas_index++) 2138 mptsas_probe_one_phy(&ioc->sh->shost_gendev, 2139 &port_info->phy_info[i], ioc->sas_index, 1); 2140 2141 return 0; 2142 2143 out_free_port_info: 2144 kfree(hba); 2145 out: 2146 return error; 2147 } 2148 2149 static int 2150 mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle) 2151 { 2152 struct mptsas_portinfo *port_info, *p, *ex; 2153 struct device *parent; 2154 struct sas_rphy *rphy; 2155 int error = -ENOMEM, i, j; 2156 2157 ex = kzalloc(sizeof(*port_info), GFP_KERNEL); 2158 if (!ex) 2159 goto out; 2160 2161 error = mptsas_sas_expander_pg0(ioc, ex, 2162 (MPI_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE << 2163 MPI_SAS_EXPAND_PGAD_FORM_SHIFT), *handle); 2164 if (error) 2165 goto out_free_port_info; 2166 2167 *handle = ex->phy_info[0].handle; 2168 2169 mutex_lock(&ioc->sas_topology_mutex); 2170 port_info = mptsas_find_portinfo_by_handle(ioc, *handle); 2171 if (!port_info) { 2172 port_info = ex; 2173 list_add_tail(&port_info->list, &ioc->sas_topology); 2174 } else { 2175 for (i = 0; i < ex->num_phys; i++) { 2176 port_info->phy_info[i].handle = 2177 ex->phy_info[i].handle; 2178 port_info->phy_info[i].port_id = 2179 ex->phy_info[i].port_id; 2180 } 2181 kfree(ex->phy_info); 2182 kfree(ex); 2183 ex = NULL; 2184 } 2185 mutex_unlock(&ioc->sas_topology_mutex); 2186 2187 for (i = 0; i < port_info->num_phys; i++) { 2188 mptsas_sas_expander_pg1(ioc, &port_info->phy_info[i], 2189 (MPI_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM << 2190 MPI_SAS_EXPAND_PGAD_FORM_SHIFT), (i << 16) + *handle); 2191 2192 if (port_info->phy_info[i].identify.handle) { 2193 mptsas_sas_device_pg0(ioc, 2194 &port_info->phy_info[i].identify, 2195 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE << 2196 MPI_SAS_DEVICE_PGAD_FORM_SHIFT), 2197 port_info->phy_info[i].identify.handle); 2198 port_info->phy_info[i].identify.phy_id = 2199 port_info->phy_info[i].phy_id; 2200 } 2201 2202 if (port_info->phy_info[i].attached.handle) { 2203 mptsas_sas_device_pg0(ioc, 2204 &port_info->phy_info[i].attached, 2205 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE << 2206 MPI_SAS_DEVICE_PGAD_FORM_SHIFT), 2207 port_info->phy_info[i].attached.handle); 2208 port_info->phy_info[i].attached.phy_id = 2209 port_info->phy_info[i].phy_id; 2210 } 2211 } 2212 2213 parent = &ioc->sh->shost_gendev; 2214 for (i = 0; i < port_info->num_phys; i++) { 2215 mutex_lock(&ioc->sas_topology_mutex); 2216 list_for_each_entry(p, &ioc->sas_topology, list) { 2217 for (j = 0; j < p->num_phys; j++) { 2218 if (port_info->phy_info[i].identify.handle != 2219 p->phy_info[j].attached.handle) 2220 continue; 2221 rphy = mptsas_get_rphy(&p->phy_info[j]); 2222 parent = &rphy->dev; 2223 } 2224 } 2225 mutex_unlock(&ioc->sas_topology_mutex); 2226 } 2227 2228 mptsas_setup_wide_ports(ioc, port_info); 2229 2230 for (i = 0; i < port_info->num_phys; i++, ioc->sas_index++) 2231 mptsas_probe_one_phy(parent, &port_info->phy_info[i], 2232 ioc->sas_index, 0); 2233 2234 return 0; 2235 2236 out_free_port_info: 2237 if (ex) { 2238 kfree(ex->phy_info); 2239 kfree(ex); 2240 } 2241 out: 2242 return error; 2243 } 2244 2245 /* 2246 * mptsas_delete_expander_phys 2247 * 2248 * 2249 * This will traverse topology, and remove expanders 2250 * that are no longer present 2251 */ 2252 static void 2253 mptsas_delete_expander_phys(MPT_ADAPTER *ioc) 2254 { 2255 struct mptsas_portinfo buffer; 2256 struct mptsas_portinfo *port_info, *n, *parent; 2257 struct mptsas_phyinfo *phy_info; 2258 struct sas_port * port; 2259 int i; 2260 u64 expander_sas_address; 2261 2262 mutex_lock(&ioc->sas_topology_mutex); 2263 list_for_each_entry_safe(port_info, n, &ioc->sas_topology, list) { 2264 2265 if (port_info->phy_info && 2266 (!(port_info->phy_info[0].identify.device_info & 2267 MPI_SAS_DEVICE_INFO_SMP_TARGET))) 2268 continue; 2269 2270 if (mptsas_sas_expander_pg0(ioc, &buffer, 2271 (MPI_SAS_EXPAND_PGAD_FORM_HANDLE << 2272 MPI_SAS_EXPAND_PGAD_FORM_SHIFT), 2273 port_info->phy_info[0].handle)) { 2274 2275 /* 2276 * Obtain the port_info instance to the parent port 2277 */ 2278 parent = mptsas_find_portinfo_by_handle(ioc, 2279 port_info->phy_info[0].identify.handle_parent); 2280 2281 if (!parent) 2282 goto next_port; 2283 2284 expander_sas_address = 2285 port_info->phy_info[0].identify.sas_address; 2286 2287 /* 2288 * Delete rphys in the parent that point 2289 * to this expander. The transport layer will 2290 * cleanup all the children. 2291 */ 2292 phy_info = parent->phy_info; 2293 for (i = 0; i < parent->num_phys; i++, phy_info++) { 2294 port = mptsas_get_port(phy_info); 2295 if (!port) 2296 continue; 2297 if (phy_info->attached.sas_address != 2298 expander_sas_address) 2299 continue; 2300 dsaswideprintk(ioc, 2301 dev_printk(KERN_DEBUG, &port->dev, 2302 MYIOC_s_FMT "delete port (%d)\n", ioc->name, 2303 port->port_identifier)); 2304 sas_port_delete(port); 2305 mptsas_port_delete(ioc, phy_info->port_details); 2306 } 2307 next_port: 2308 2309 phy_info = port_info->phy_info; 2310 for (i = 0; i < port_info->num_phys; i++, phy_info++) 2311 mptsas_port_delete(ioc, phy_info->port_details); 2312 2313 list_del(&port_info->list); 2314 kfree(port_info->phy_info); 2315 kfree(port_info); 2316 } 2317 /* 2318 * Free this memory allocated from inside 2319 * mptsas_sas_expander_pg0 2320 */ 2321 kfree(buffer.phy_info); 2322 } 2323 mutex_unlock(&ioc->sas_topology_mutex); 2324 } 2325 2326 /* 2327 * Start of day discovery 2328 */ 2329 static void 2330 mptsas_scan_sas_topology(MPT_ADAPTER *ioc) 2331 { 2332 u32 handle = 0xFFFF; 2333 int i; 2334 2335 mutex_lock(&ioc->sas_discovery_mutex); 2336 mptsas_probe_hba_phys(ioc); 2337 while (!mptsas_probe_expander_phys(ioc, &handle)) 2338 ; 2339 /* 2340 Reporting RAID volumes. 2341 */ 2342 if (!ioc->ir_firmware) 2343 goto out; 2344 if (!ioc->raid_data.pIocPg2) 2345 goto out; 2346 if (!ioc->raid_data.pIocPg2->NumActiveVolumes) 2347 goto out; 2348 for (i = 0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { 2349 scsi_add_device(ioc->sh, MPTSAS_RAID_CHANNEL, 2350 ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0); 2351 } 2352 out: 2353 mutex_unlock(&ioc->sas_discovery_mutex); 2354 } 2355 2356 /* 2357 * Work queue thread to handle Runtime discovery 2358 * Mere purpose is the hot add/delete of expanders 2359 *(Mutex UNLOCKED) 2360 */ 2361 static void 2362 __mptsas_discovery_work(MPT_ADAPTER *ioc) 2363 { 2364 u32 handle = 0xFFFF; 2365 2366 ioc->sas_discovery_runtime=1; 2367 mptsas_delete_expander_phys(ioc); 2368 mptsas_probe_hba_phys(ioc); 2369 while (!mptsas_probe_expander_phys(ioc, &handle)) 2370 ; 2371 ioc->sas_discovery_runtime=0; 2372 } 2373 2374 /* 2375 * Work queue thread to handle Runtime discovery 2376 * Mere purpose is the hot add/delete of expanders 2377 *(Mutex LOCKED) 2378 */ 2379 static void 2380 mptsas_discovery_work(struct work_struct *work) 2381 { 2382 struct mptsas_discovery_event *ev = 2383 container_of(work, struct mptsas_discovery_event, work); 2384 MPT_ADAPTER *ioc = ev->ioc; 2385 2386 mutex_lock(&ioc->sas_discovery_mutex); 2387 __mptsas_discovery_work(ioc); 2388 mutex_unlock(&ioc->sas_discovery_mutex); 2389 kfree(ev); 2390 } 2391 2392 static struct mptsas_phyinfo * 2393 mptsas_find_phyinfo_by_sas_address(MPT_ADAPTER *ioc, u64 sas_address) 2394 { 2395 struct mptsas_portinfo *port_info; 2396 struct mptsas_phyinfo *phy_info = NULL; 2397 int i; 2398 2399 mutex_lock(&ioc->sas_topology_mutex); 2400 list_for_each_entry(port_info, &ioc->sas_topology, list) { 2401 for (i = 0; i < port_info->num_phys; i++) { 2402 if (!mptsas_is_end_device( 2403 &port_info->phy_info[i].attached)) 2404 continue; 2405 if (port_info->phy_info[i].attached.sas_address 2406 != sas_address) 2407 continue; 2408 phy_info = &port_info->phy_info[i]; 2409 break; 2410 } 2411 } 2412 mutex_unlock(&ioc->sas_topology_mutex); 2413 return phy_info; 2414 } 2415 2416 static struct mptsas_phyinfo * 2417 mptsas_find_phyinfo_by_target(MPT_ADAPTER *ioc, u8 channel, u8 id) 2418 { 2419 struct mptsas_portinfo *port_info; 2420 struct mptsas_phyinfo *phy_info = NULL; 2421 int i; 2422 2423 mutex_lock(&ioc->sas_topology_mutex); 2424 list_for_each_entry(port_info, &ioc->sas_topology, list) { 2425 for (i = 0; i < port_info->num_phys; i++) { 2426 if (!mptsas_is_end_device( 2427 &port_info->phy_info[i].attached)) 2428 continue; 2429 if (port_info->phy_info[i].attached.id != id) 2430 continue; 2431 if (port_info->phy_info[i].attached.channel != channel) 2432 continue; 2433 phy_info = &port_info->phy_info[i]; 2434 break; 2435 } 2436 } 2437 mutex_unlock(&ioc->sas_topology_mutex); 2438 return phy_info; 2439 } 2440 2441 static struct mptsas_phyinfo * 2442 mptsas_find_phyinfo_by_phys_disk_num(MPT_ADAPTER *ioc, u8 channel, u8 id) 2443 { 2444 struct mptsas_portinfo *port_info; 2445 struct mptsas_phyinfo *phy_info = NULL; 2446 int i; 2447 2448 mutex_lock(&ioc->sas_topology_mutex); 2449 list_for_each_entry(port_info, &ioc->sas_topology, list) { 2450 for (i = 0; i < port_info->num_phys; i++) { 2451 if (!mptsas_is_end_device( 2452 &port_info->phy_info[i].attached)) 2453 continue; 2454 if (port_info->phy_info[i].attached.phys_disk_num == ~0) 2455 continue; 2456 if (port_info->phy_info[i].attached.phys_disk_num != id) 2457 continue; 2458 if (port_info->phy_info[i].attached.channel != channel) 2459 continue; 2460 phy_info = &port_info->phy_info[i]; 2461 break; 2462 } 2463 } 2464 mutex_unlock(&ioc->sas_topology_mutex); 2465 return phy_info; 2466 } 2467 2468 /* 2469 * Work queue thread to clear the persitency table 2470 */ 2471 static void 2472 mptsas_persist_clear_table(struct work_struct *work) 2473 { 2474 MPT_ADAPTER *ioc = container_of(work, MPT_ADAPTER, sas_persist_task); 2475 2476 mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT); 2477 } 2478 2479 static void 2480 mptsas_reprobe_lun(struct scsi_device *sdev, void *data) 2481 { 2482 int rc; 2483 2484 sdev->no_uld_attach = data ? 1 : 0; 2485 rc = scsi_device_reprobe(sdev); 2486 } 2487 2488 static void 2489 mptsas_reprobe_target(struct scsi_target *starget, int uld_attach) 2490 { 2491 starget_for_each_device(starget, uld_attach ? (void *)1 : NULL, 2492 mptsas_reprobe_lun); 2493 } 2494 2495 static void 2496 mptsas_adding_inactive_raid_components(MPT_ADAPTER *ioc, u8 channel, u8 id) 2497 { 2498 CONFIGPARMS cfg; 2499 ConfigPageHeader_t hdr; 2500 dma_addr_t dma_handle; 2501 pRaidVolumePage0_t buffer = NULL; 2502 RaidPhysDiskPage0_t phys_disk; 2503 int i; 2504 struct mptsas_hotplug_event *ev; 2505 2506 memset(&cfg, 0 , sizeof(CONFIGPARMS)); 2507 memset(&hdr, 0 , sizeof(ConfigPageHeader_t)); 2508 hdr.PageType = MPI_CONFIG_PAGETYPE_RAID_VOLUME; 2509 cfg.pageAddr = (channel << 8) + id; 2510 cfg.cfghdr.hdr = &hdr; 2511 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 2512 2513 if (mpt_config(ioc, &cfg) != 0) 2514 goto out; 2515 2516 if (!hdr.PageLength) 2517 goto out; 2518 2519 buffer = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4, 2520 &dma_handle); 2521 2522 if (!buffer) 2523 goto out; 2524 2525 cfg.physAddr = dma_handle; 2526 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 2527 2528 if (mpt_config(ioc, &cfg) != 0) 2529 goto out; 2530 2531 if (!(buffer->VolumeStatus.Flags & 2532 MPI_RAIDVOL0_STATUS_FLAG_VOLUME_INACTIVE)) 2533 goto out; 2534 2535 if (!buffer->NumPhysDisks) 2536 goto out; 2537 2538 for (i = 0; i < buffer->NumPhysDisks; i++) { 2539 2540 if (mpt_raid_phys_disk_pg0(ioc, 2541 buffer->PhysDisk[i].PhysDiskNum, &phys_disk) != 0) 2542 continue; 2543 2544 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 2545 if (!ev) { 2546 printk(MYIOC_s_WARN_FMT "mptsas: lost hotplug event\n", ioc->name); 2547 goto out; 2548 } 2549 2550 INIT_WORK(&ev->work, mptsas_hotplug_work); 2551 ev->ioc = ioc; 2552 ev->id = phys_disk.PhysDiskID; 2553 ev->channel = phys_disk.PhysDiskBus; 2554 ev->phys_disk_num_valid = 1; 2555 ev->phys_disk_num = phys_disk.PhysDiskNum; 2556 ev->event_type = MPTSAS_ADD_DEVICE; 2557 schedule_work(&ev->work); 2558 } 2559 2560 out: 2561 if (buffer) 2562 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, buffer, 2563 dma_handle); 2564 } 2565 /* 2566 * Work queue thread to handle SAS hotplug events 2567 */ 2568 static void 2569 mptsas_hotplug_work(struct work_struct *work) 2570 { 2571 struct mptsas_hotplug_event *ev = 2572 container_of(work, struct mptsas_hotplug_event, work); 2573 2574 MPT_ADAPTER *ioc = ev->ioc; 2575 struct mptsas_phyinfo *phy_info; 2576 struct sas_rphy *rphy; 2577 struct sas_port *port; 2578 struct scsi_device *sdev; 2579 struct scsi_target * starget; 2580 struct sas_identify identify; 2581 char *ds = NULL; 2582 struct mptsas_devinfo sas_device; 2583 VirtTarget *vtarget; 2584 VirtDevice *vdevice; 2585 2586 mutex_lock(&ioc->sas_discovery_mutex); 2587 switch (ev->event_type) { 2588 case MPTSAS_DEL_DEVICE: 2589 2590 phy_info = NULL; 2591 if (ev->phys_disk_num_valid) { 2592 if (ev->hidden_raid_component){ 2593 if (mptsas_sas_device_pg0(ioc, &sas_device, 2594 (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID << 2595 MPI_SAS_DEVICE_PGAD_FORM_SHIFT), 2596 (ev->channel << 8) + ev->id)) { 2597 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2598 "%s: exit at line=%d\n", ioc->name, 2599 __FUNCTION__, __LINE__)); 2600 break; 2601 } 2602 phy_info = mptsas_find_phyinfo_by_sas_address( 2603 ioc, sas_device.sas_address); 2604 }else 2605 phy_info = mptsas_find_phyinfo_by_phys_disk_num( 2606 ioc, ev->channel, ev->phys_disk_num); 2607 } 2608 2609 if (!phy_info) 2610 phy_info = mptsas_find_phyinfo_by_target(ioc, 2611 ev->channel, ev->id); 2612 2613 /* 2614 * Sanity checks, for non-existing phys and remote rphys. 2615 */ 2616 if (!phy_info){ 2617 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2618 "%s: exit at line=%d\n", ioc->name, 2619 __FUNCTION__, __LINE__)); 2620 break; 2621 } 2622 if (!phy_info->port_details) { 2623 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2624 "%s: exit at line=%d\n", ioc->name, 2625 __FUNCTION__, __LINE__)); 2626 break; 2627 } 2628 rphy = mptsas_get_rphy(phy_info); 2629 if (!rphy) { 2630 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2631 "%s: exit at line=%d\n", ioc->name, 2632 __FUNCTION__, __LINE__)); 2633 break; 2634 } 2635 2636 port = mptsas_get_port(phy_info); 2637 if (!port) { 2638 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2639 "%s: exit at line=%d\n", ioc->name, 2640 __FUNCTION__, __LINE__)); 2641 break; 2642 } 2643 2644 starget = mptsas_get_starget(phy_info); 2645 if (starget) { 2646 vtarget = starget->hostdata; 2647 2648 if (!vtarget) { 2649 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2650 "%s: exit at line=%d\n", ioc->name, 2651 __FUNCTION__, __LINE__)); 2652 break; 2653 } 2654 2655 /* 2656 * Handling RAID components 2657 */ 2658 if (ev->phys_disk_num_valid && 2659 ev->hidden_raid_component) { 2660 printk(MYIOC_s_INFO_FMT 2661 "RAID Hidding: channel=%d, id=%d, " 2662 "physdsk %d \n", ioc->name, ev->channel, 2663 ev->id, ev->phys_disk_num); 2664 vtarget->id = ev->phys_disk_num; 2665 vtarget->tflags |= 2666 MPT_TARGET_FLAGS_RAID_COMPONENT; 2667 mptsas_reprobe_target(starget, 1); 2668 phy_info->attached.phys_disk_num = 2669 ev->phys_disk_num; 2670 break; 2671 } 2672 } 2673 2674 if (phy_info->attached.device_info & 2675 MPI_SAS_DEVICE_INFO_SSP_TARGET) 2676 ds = "ssp"; 2677 if (phy_info->attached.device_info & 2678 MPI_SAS_DEVICE_INFO_STP_TARGET) 2679 ds = "stp"; 2680 if (phy_info->attached.device_info & 2681 MPI_SAS_DEVICE_INFO_SATA_DEVICE) 2682 ds = "sata"; 2683 2684 printk(MYIOC_s_INFO_FMT 2685 "removing %s device, channel %d, id %d, phy %d\n", 2686 ioc->name, ds, ev->channel, ev->id, phy_info->phy_id); 2687 dev_printk(KERN_DEBUG, &port->dev, MYIOC_s_FMT 2688 "delete port (%d)\n", ioc->name, port->port_identifier); 2689 sas_port_delete(port); 2690 mptsas_port_delete(ioc, phy_info->port_details); 2691 break; 2692 case MPTSAS_ADD_DEVICE: 2693 2694 if (ev->phys_disk_num_valid) 2695 mpt_findImVolumes(ioc); 2696 2697 /* 2698 * Refresh sas device pg0 data 2699 */ 2700 if (mptsas_sas_device_pg0(ioc, &sas_device, 2701 (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID << 2702 MPI_SAS_DEVICE_PGAD_FORM_SHIFT), 2703 (ev->channel << 8) + ev->id)) { 2704 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2705 "%s: exit at line=%d\n", ioc->name, 2706 __FUNCTION__, __LINE__)); 2707 break; 2708 } 2709 2710 __mptsas_discovery_work(ioc); 2711 2712 phy_info = mptsas_find_phyinfo_by_sas_address(ioc, 2713 sas_device.sas_address); 2714 2715 if (!phy_info || !phy_info->port_details) { 2716 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2717 "%s: exit at line=%d\n", ioc->name, 2718 __FUNCTION__, __LINE__)); 2719 break; 2720 } 2721 2722 starget = mptsas_get_starget(phy_info); 2723 if (starget && (!ev->hidden_raid_component)){ 2724 2725 vtarget = starget->hostdata; 2726 2727 if (!vtarget) { 2728 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2729 "%s: exit at line=%d\n", ioc->name, 2730 __FUNCTION__, __LINE__)); 2731 break; 2732 } 2733 /* 2734 * Handling RAID components 2735 */ 2736 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 2737 printk(MYIOC_s_INFO_FMT 2738 "RAID Exposing: channel=%d, id=%d, " 2739 "physdsk %d \n", ioc->name, ev->channel, 2740 ev->id, ev->phys_disk_num); 2741 vtarget->tflags &= 2742 ~MPT_TARGET_FLAGS_RAID_COMPONENT; 2743 vtarget->id = ev->id; 2744 mptsas_reprobe_target(starget, 0); 2745 phy_info->attached.phys_disk_num = ~0; 2746 } 2747 break; 2748 } 2749 2750 if (mptsas_get_rphy(phy_info)) { 2751 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2752 "%s: exit at line=%d\n", ioc->name, 2753 __FUNCTION__, __LINE__)); 2754 if (ev->channel) printk("%d\n", __LINE__); 2755 break; 2756 } 2757 2758 port = mptsas_get_port(phy_info); 2759 if (!port) { 2760 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2761 "%s: exit at line=%d\n", ioc->name, 2762 __FUNCTION__, __LINE__)); 2763 break; 2764 } 2765 memcpy(&phy_info->attached, &sas_device, 2766 sizeof(struct mptsas_devinfo)); 2767 2768 if (phy_info->attached.device_info & 2769 MPI_SAS_DEVICE_INFO_SSP_TARGET) 2770 ds = "ssp"; 2771 if (phy_info->attached.device_info & 2772 MPI_SAS_DEVICE_INFO_STP_TARGET) 2773 ds = "stp"; 2774 if (phy_info->attached.device_info & 2775 MPI_SAS_DEVICE_INFO_SATA_DEVICE) 2776 ds = "sata"; 2777 2778 printk(MYIOC_s_INFO_FMT 2779 "attaching %s device, channel %d, id %d, phy %d\n", 2780 ioc->name, ds, ev->channel, ev->id, ev->phy_id); 2781 2782 mptsas_parse_device_info(&identify, &phy_info->attached); 2783 rphy = sas_end_device_alloc(port); 2784 if (!rphy) { 2785 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2786 "%s: exit at line=%d\n", ioc->name, 2787 __FUNCTION__, __LINE__)); 2788 break; /* non-fatal: an rphy can be added later */ 2789 } 2790 2791 rphy->identify = identify; 2792 if (sas_rphy_add(rphy)) { 2793 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 2794 "%s: exit at line=%d\n", ioc->name, 2795 __FUNCTION__, __LINE__)); 2796 sas_rphy_free(rphy); 2797 break; 2798 } 2799 mptsas_set_rphy(ioc, phy_info, rphy); 2800 break; 2801 case MPTSAS_ADD_RAID: 2802 sdev = scsi_device_lookup(ioc->sh, MPTSAS_RAID_CHANNEL, 2803 ev->id, 0); 2804 if (sdev) { 2805 scsi_device_put(sdev); 2806 break; 2807 } 2808 printk(MYIOC_s_INFO_FMT 2809 "attaching raid volume, channel %d, id %d\n", 2810 ioc->name, MPTSAS_RAID_CHANNEL, ev->id); 2811 scsi_add_device(ioc->sh, MPTSAS_RAID_CHANNEL, ev->id, 0); 2812 mpt_findImVolumes(ioc); 2813 break; 2814 case MPTSAS_DEL_RAID: 2815 sdev = scsi_device_lookup(ioc->sh, MPTSAS_RAID_CHANNEL, 2816 ev->id, 0); 2817 if (!sdev) 2818 break; 2819 printk(MYIOC_s_INFO_FMT 2820 "removing raid volume, channel %d, id %d\n", 2821 ioc->name, MPTSAS_RAID_CHANNEL, ev->id); 2822 vdevice = sdev->hostdata; 2823 scsi_remove_device(sdev); 2824 scsi_device_put(sdev); 2825 mpt_findImVolumes(ioc); 2826 break; 2827 case MPTSAS_ADD_INACTIVE_VOLUME: 2828 mptsas_adding_inactive_raid_components(ioc, 2829 ev->channel, ev->id); 2830 break; 2831 case MPTSAS_IGNORE_EVENT: 2832 default: 2833 break; 2834 } 2835 2836 mutex_unlock(&ioc->sas_discovery_mutex); 2837 kfree(ev); 2838 } 2839 2840 static void 2841 mptsas_send_sas_event(MPT_ADAPTER *ioc, 2842 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data) 2843 { 2844 struct mptsas_hotplug_event *ev; 2845 u32 device_info = le32_to_cpu(sas_event_data->DeviceInfo); 2846 __le64 sas_address; 2847 2848 if ((device_info & 2849 (MPI_SAS_DEVICE_INFO_SSP_TARGET | 2850 MPI_SAS_DEVICE_INFO_STP_TARGET | 2851 MPI_SAS_DEVICE_INFO_SATA_DEVICE )) == 0) 2852 return; 2853 2854 switch (sas_event_data->ReasonCode) { 2855 case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING: 2856 2857 mptsas_target_reset_queue(ioc, sas_event_data); 2858 break; 2859 2860 case MPI_EVENT_SAS_DEV_STAT_RC_ADDED: 2861 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 2862 if (!ev) { 2863 printk(MYIOC_s_WARN_FMT "lost hotplug event\n", ioc->name); 2864 break; 2865 } 2866 2867 INIT_WORK(&ev->work, mptsas_hotplug_work); 2868 ev->ioc = ioc; 2869 ev->handle = le16_to_cpu(sas_event_data->DevHandle); 2870 ev->parent_handle = 2871 le16_to_cpu(sas_event_data->ParentDevHandle); 2872 ev->channel = sas_event_data->Bus; 2873 ev->id = sas_event_data->TargetID; 2874 ev->phy_id = sas_event_data->PhyNum; 2875 memcpy(&sas_address, &sas_event_data->SASAddress, 2876 sizeof(__le64)); 2877 ev->sas_address = le64_to_cpu(sas_address); 2878 ev->device_info = device_info; 2879 2880 if (sas_event_data->ReasonCode & 2881 MPI_EVENT_SAS_DEV_STAT_RC_ADDED) 2882 ev->event_type = MPTSAS_ADD_DEVICE; 2883 else 2884 ev->event_type = MPTSAS_DEL_DEVICE; 2885 schedule_work(&ev->work); 2886 break; 2887 case MPI_EVENT_SAS_DEV_STAT_RC_NO_PERSIST_ADDED: 2888 /* 2889 * Persistent table is full. 2890 */ 2891 INIT_WORK(&ioc->sas_persist_task, 2892 mptsas_persist_clear_table); 2893 schedule_work(&ioc->sas_persist_task); 2894 break; 2895 /* 2896 * TODO, handle other events 2897 */ 2898 case MPI_EVENT_SAS_DEV_STAT_RC_SMART_DATA: 2899 case MPI_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED: 2900 case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET: 2901 case MPI_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL: 2902 case MPI_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL: 2903 case MPI_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL: 2904 case MPI_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL: 2905 default: 2906 break; 2907 } 2908 } 2909 static void 2910 mptsas_send_raid_event(MPT_ADAPTER *ioc, 2911 EVENT_DATA_RAID *raid_event_data) 2912 { 2913 struct mptsas_hotplug_event *ev; 2914 int status = le32_to_cpu(raid_event_data->SettingsStatus); 2915 int state = (status >> 8) & 0xff; 2916 2917 if (ioc->bus_type != SAS) 2918 return; 2919 2920 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 2921 if (!ev) { 2922 printk(MYIOC_s_WARN_FMT "lost hotplug event\n", ioc->name); 2923 return; 2924 } 2925 2926 INIT_WORK(&ev->work, mptsas_hotplug_work); 2927 ev->ioc = ioc; 2928 ev->id = raid_event_data->VolumeID; 2929 ev->channel = raid_event_data->VolumeBus; 2930 ev->event_type = MPTSAS_IGNORE_EVENT; 2931 2932 switch (raid_event_data->ReasonCode) { 2933 case MPI_EVENT_RAID_RC_PHYSDISK_DELETED: 2934 ev->phys_disk_num_valid = 1; 2935 ev->phys_disk_num = raid_event_data->PhysDiskNum; 2936 ev->event_type = MPTSAS_ADD_DEVICE; 2937 break; 2938 case MPI_EVENT_RAID_RC_PHYSDISK_CREATED: 2939 ev->phys_disk_num_valid = 1; 2940 ev->phys_disk_num = raid_event_data->PhysDiskNum; 2941 ev->hidden_raid_component = 1; 2942 ev->event_type = MPTSAS_DEL_DEVICE; 2943 break; 2944 case MPI_EVENT_RAID_RC_PHYSDISK_STATUS_CHANGED: 2945 switch (state) { 2946 case MPI_PD_STATE_ONLINE: 2947 case MPI_PD_STATE_NOT_COMPATIBLE: 2948 ev->phys_disk_num_valid = 1; 2949 ev->phys_disk_num = raid_event_data->PhysDiskNum; 2950 ev->hidden_raid_component = 1; 2951 ev->event_type = MPTSAS_ADD_DEVICE; 2952 break; 2953 case MPI_PD_STATE_MISSING: 2954 case MPI_PD_STATE_OFFLINE_AT_HOST_REQUEST: 2955 case MPI_PD_STATE_FAILED_AT_HOST_REQUEST: 2956 case MPI_PD_STATE_OFFLINE_FOR_ANOTHER_REASON: 2957 ev->phys_disk_num_valid = 1; 2958 ev->phys_disk_num = raid_event_data->PhysDiskNum; 2959 ev->event_type = MPTSAS_DEL_DEVICE; 2960 break; 2961 default: 2962 break; 2963 } 2964 break; 2965 case MPI_EVENT_RAID_RC_VOLUME_DELETED: 2966 ev->event_type = MPTSAS_DEL_RAID; 2967 break; 2968 case MPI_EVENT_RAID_RC_VOLUME_CREATED: 2969 ev->event_type = MPTSAS_ADD_RAID; 2970 break; 2971 case MPI_EVENT_RAID_RC_VOLUME_STATUS_CHANGED: 2972 switch (state) { 2973 case MPI_RAIDVOL0_STATUS_STATE_FAILED: 2974 case MPI_RAIDVOL0_STATUS_STATE_MISSING: 2975 ev->event_type = MPTSAS_DEL_RAID; 2976 break; 2977 case MPI_RAIDVOL0_STATUS_STATE_OPTIMAL: 2978 case MPI_RAIDVOL0_STATUS_STATE_DEGRADED: 2979 ev->event_type = MPTSAS_ADD_RAID; 2980 break; 2981 default: 2982 break; 2983 } 2984 break; 2985 default: 2986 break; 2987 } 2988 schedule_work(&ev->work); 2989 } 2990 2991 static void 2992 mptsas_send_discovery_event(MPT_ADAPTER *ioc, 2993 EVENT_DATA_SAS_DISCOVERY *discovery_data) 2994 { 2995 struct mptsas_discovery_event *ev; 2996 2997 /* 2998 * DiscoveryStatus 2999 * 3000 * This flag will be non-zero when firmware 3001 * kicks off discovery, and return to zero 3002 * once its completed. 3003 */ 3004 if (discovery_data->DiscoveryStatus) 3005 return; 3006 3007 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3008 if (!ev) 3009 return; 3010 INIT_WORK(&ev->work, mptsas_discovery_work); 3011 ev->ioc = ioc; 3012 schedule_work(&ev->work); 3013 }; 3014 3015 /* 3016 * mptsas_send_ir2_event - handle exposing hidden disk when 3017 * an inactive raid volume is added 3018 * 3019 * @ioc: Pointer to MPT_ADAPTER structure 3020 * @ir2_data 3021 * 3022 */ 3023 static void 3024 mptsas_send_ir2_event(MPT_ADAPTER *ioc, PTR_MPI_EVENT_DATA_IR2 ir2_data) 3025 { 3026 struct mptsas_hotplug_event *ev; 3027 3028 if (ir2_data->ReasonCode != 3029 MPI_EVENT_IR2_RC_FOREIGN_CFG_DETECTED) 3030 return; 3031 3032 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3033 if (!ev) 3034 return; 3035 3036 INIT_WORK(&ev->work, mptsas_hotplug_work); 3037 ev->ioc = ioc; 3038 ev->id = ir2_data->TargetID; 3039 ev->channel = ir2_data->Bus; 3040 ev->event_type = MPTSAS_ADD_INACTIVE_VOLUME; 3041 3042 schedule_work(&ev->work); 3043 }; 3044 3045 static int 3046 mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply) 3047 { 3048 int rc=1; 3049 u8 event = le32_to_cpu(reply->Event) & 0xFF; 3050 3051 if (!ioc->sh) 3052 goto out; 3053 3054 /* 3055 * sas_discovery_ignore_events 3056 * 3057 * This flag is to prevent anymore processing of 3058 * sas events once mptsas_remove function is called. 3059 */ 3060 if (ioc->sas_discovery_ignore_events) { 3061 rc = mptscsih_event_process(ioc, reply); 3062 goto out; 3063 } 3064 3065 switch (event) { 3066 case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE: 3067 mptsas_send_sas_event(ioc, 3068 (EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *)reply->Data); 3069 break; 3070 case MPI_EVENT_INTEGRATED_RAID: 3071 mptsas_send_raid_event(ioc, 3072 (EVENT_DATA_RAID *)reply->Data); 3073 break; 3074 case MPI_EVENT_PERSISTENT_TABLE_FULL: 3075 INIT_WORK(&ioc->sas_persist_task, 3076 mptsas_persist_clear_table); 3077 schedule_work(&ioc->sas_persist_task); 3078 break; 3079 case MPI_EVENT_SAS_DISCOVERY: 3080 mptsas_send_discovery_event(ioc, 3081 (EVENT_DATA_SAS_DISCOVERY *)reply->Data); 3082 break; 3083 case MPI_EVENT_IR2: 3084 mptsas_send_ir2_event(ioc, 3085 (PTR_MPI_EVENT_DATA_IR2)reply->Data); 3086 break; 3087 default: 3088 rc = mptscsih_event_process(ioc, reply); 3089 break; 3090 } 3091 out: 3092 3093 return rc; 3094 } 3095 3096 static int 3097 mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) 3098 { 3099 struct Scsi_Host *sh; 3100 MPT_SCSI_HOST *hd; 3101 MPT_ADAPTER *ioc; 3102 unsigned long flags; 3103 int ii; 3104 int numSGE = 0; 3105 int scale; 3106 int ioc_cap; 3107 int error=0; 3108 int r; 3109 3110 r = mpt_attach(pdev,id); 3111 if (r) 3112 return r; 3113 3114 ioc = pci_get_drvdata(pdev); 3115 ioc->DoneCtx = mptsasDoneCtx; 3116 ioc->TaskCtx = mptsasTaskCtx; 3117 ioc->InternalCtx = mptsasInternalCtx; 3118 3119 /* Added sanity check on readiness of the MPT adapter. 3120 */ 3121 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 3122 printk(MYIOC_s_WARN_FMT 3123 "Skipping because it's not operational!\n", 3124 ioc->name); 3125 error = -ENODEV; 3126 goto out_mptsas_probe; 3127 } 3128 3129 if (!ioc->active) { 3130 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 3131 ioc->name); 3132 error = -ENODEV; 3133 goto out_mptsas_probe; 3134 } 3135 3136 /* Sanity check - ensure at least 1 port is INITIATOR capable 3137 */ 3138 ioc_cap = 0; 3139 for (ii = 0; ii < ioc->facts.NumberOfPorts; ii++) { 3140 if (ioc->pfacts[ii].ProtocolFlags & 3141 MPI_PORTFACTS_PROTOCOL_INITIATOR) 3142 ioc_cap++; 3143 } 3144 3145 if (!ioc_cap) { 3146 printk(MYIOC_s_WARN_FMT 3147 "Skipping ioc=%p because SCSI Initiator mode " 3148 "is NOT enabled!\n", ioc->name, ioc); 3149 return 0; 3150 } 3151 3152 sh = scsi_host_alloc(&mptsas_driver_template, sizeof(MPT_SCSI_HOST)); 3153 if (!sh) { 3154 printk(MYIOC_s_WARN_FMT 3155 "Unable to register controller with SCSI subsystem\n", 3156 ioc->name); 3157 error = -1; 3158 goto out_mptsas_probe; 3159 } 3160 3161 spin_lock_irqsave(&ioc->FreeQlock, flags); 3162 3163 /* Attach the SCSI Host to the IOC structure 3164 */ 3165 ioc->sh = sh; 3166 3167 sh->io_port = 0; 3168 sh->n_io_port = 0; 3169 sh->irq = 0; 3170 3171 /* set 16 byte cdb's */ 3172 sh->max_cmd_len = 16; 3173 3174 sh->max_id = ioc->pfacts[0].PortSCSIID; 3175 sh->max_lun = max_lun; 3176 3177 sh->transportt = mptsas_transport_template; 3178 3179 sh->this_id = ioc->pfacts[0].PortSCSIID; 3180 3181 /* Required entry. 3182 */ 3183 sh->unique_id = ioc->id; 3184 3185 INIT_LIST_HEAD(&ioc->sas_topology); 3186 mutex_init(&ioc->sas_topology_mutex); 3187 mutex_init(&ioc->sas_discovery_mutex); 3188 mutex_init(&ioc->sas_mgmt.mutex); 3189 init_completion(&ioc->sas_mgmt.done); 3190 3191 /* Verify that we won't exceed the maximum 3192 * number of chain buffers 3193 * We can optimize: ZZ = req_sz/sizeof(SGE) 3194 * For 32bit SGE's: 3195 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 3196 * + (req_sz - 64)/sizeof(SGE) 3197 * A slightly different algorithm is required for 3198 * 64bit SGEs. 3199 */ 3200 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); 3201 if (sizeof(dma_addr_t) == sizeof(u64)) { 3202 numSGE = (scale - 1) * 3203 (ioc->facts.MaxChainDepth-1) + scale + 3204 (ioc->req_sz - 60) / (sizeof(dma_addr_t) + 3205 sizeof(u32)); 3206 } else { 3207 numSGE = 1 + (scale - 1) * 3208 (ioc->facts.MaxChainDepth-1) + scale + 3209 (ioc->req_sz - 64) / (sizeof(dma_addr_t) + 3210 sizeof(u32)); 3211 } 3212 3213 if (numSGE < sh->sg_tablesize) { 3214 /* Reset this value */ 3215 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3216 "Resetting sg_tablesize to %d from %d\n", 3217 ioc->name, numSGE, sh->sg_tablesize)); 3218 sh->sg_tablesize = numSGE; 3219 } 3220 3221 hd = shost_priv(sh); 3222 hd->ioc = ioc; 3223 3224 /* SCSI needs scsi_cmnd lookup table! 3225 * (with size equal to req_depth*PtrSz!) 3226 */ 3227 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 3228 if (!ioc->ScsiLookup) { 3229 error = -ENOMEM; 3230 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 3231 goto out_mptsas_probe; 3232 } 3233 spin_lock_init(&ioc->scsi_lookup_lock); 3234 3235 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 3236 ioc->name, ioc->ScsiLookup)); 3237 3238 /* Clear the TM flags 3239 */ 3240 hd->tmPending = 0; 3241 hd->tmState = TM_STATE_NONE; 3242 hd->resetPending = 0; 3243 hd->abortSCpnt = NULL; 3244 3245 /* Clear the pointer used to store 3246 * single-threaded commands, i.e., those 3247 * issued during a bus scan, dv and 3248 * configuration pages. 3249 */ 3250 hd->cmdPtr = NULL; 3251 3252 /* Initialize this SCSI Hosts' timers 3253 * To use, set the timer expires field 3254 * and add_timer 3255 */ 3256 init_timer(&hd->timer); 3257 hd->timer.data = (unsigned long) hd; 3258 hd->timer.function = mptscsih_timer_expired; 3259 3260 ioc->sas_data.ptClear = mpt_pt_clear; 3261 3262 init_waitqueue_head(&hd->scandv_waitq); 3263 hd->scandv_wait_done = 0; 3264 hd->last_queue_full = 0; 3265 INIT_LIST_HEAD(&hd->target_reset_list); 3266 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 3267 3268 if (ioc->sas_data.ptClear==1) { 3269 mptbase_sas_persist_operation( 3270 ioc, MPI_SAS_OP_CLEAR_ALL_PERSISTENT); 3271 } 3272 3273 error = scsi_add_host(sh, &ioc->pcidev->dev); 3274 if (error) { 3275 dprintk(ioc, printk(MYIOC_s_ERR_FMT 3276 "scsi_add_host failed\n", ioc->name)); 3277 goto out_mptsas_probe; 3278 } 3279 3280 mptsas_scan_sas_topology(ioc); 3281 3282 return 0; 3283 3284 out_mptsas_probe: 3285 3286 mptscsih_remove(pdev); 3287 return error; 3288 } 3289 3290 static void __devexit mptsas_remove(struct pci_dev *pdev) 3291 { 3292 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 3293 struct mptsas_portinfo *p, *n; 3294 int i; 3295 3296 ioc->sas_discovery_ignore_events = 1; 3297 sas_remove_host(ioc->sh); 3298 3299 mutex_lock(&ioc->sas_topology_mutex); 3300 list_for_each_entry_safe(p, n, &ioc->sas_topology, list) { 3301 list_del(&p->list); 3302 for (i = 0 ; i < p->num_phys ; i++) 3303 mptsas_port_delete(ioc, p->phy_info[i].port_details); 3304 kfree(p->phy_info); 3305 kfree(p); 3306 } 3307 mutex_unlock(&ioc->sas_topology_mutex); 3308 3309 mptscsih_remove(pdev); 3310 } 3311 3312 static struct pci_device_id mptsas_pci_table[] = { 3313 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064, 3314 PCI_ANY_ID, PCI_ANY_ID }, 3315 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068, 3316 PCI_ANY_ID, PCI_ANY_ID }, 3317 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064E, 3318 PCI_ANY_ID, PCI_ANY_ID }, 3319 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068E, 3320 PCI_ANY_ID, PCI_ANY_ID }, 3321 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1078, 3322 PCI_ANY_ID, PCI_ANY_ID }, 3323 {0} /* Terminating entry */ 3324 }; 3325 MODULE_DEVICE_TABLE(pci, mptsas_pci_table); 3326 3327 3328 static struct pci_driver mptsas_driver = { 3329 .name = "mptsas", 3330 .id_table = mptsas_pci_table, 3331 .probe = mptsas_probe, 3332 .remove = __devexit_p(mptsas_remove), 3333 .shutdown = mptscsih_shutdown, 3334 #ifdef CONFIG_PM 3335 .suspend = mptscsih_suspend, 3336 .resume = mptscsih_resume, 3337 #endif 3338 }; 3339 3340 static int __init 3341 mptsas_init(void) 3342 { 3343 int error; 3344 3345 show_mptmod_ver(my_NAME, my_VERSION); 3346 3347 mptsas_transport_template = 3348 sas_attach_transport(&mptsas_transport_functions); 3349 if (!mptsas_transport_template) 3350 return -ENODEV; 3351 3352 mptsasDoneCtx = mpt_register(mptscsih_io_done, MPTSAS_DRIVER); 3353 mptsasTaskCtx = mpt_register(mptsas_taskmgmt_complete, MPTSAS_DRIVER); 3354 mptsasInternalCtx = 3355 mpt_register(mptscsih_scandv_complete, MPTSAS_DRIVER); 3356 mptsasMgmtCtx = mpt_register(mptsas_mgmt_done, MPTSAS_DRIVER); 3357 3358 mpt_event_register(mptsasDoneCtx, mptsas_event_process); 3359 mpt_reset_register(mptsasDoneCtx, mptsas_ioc_reset); 3360 3361 error = pci_register_driver(&mptsas_driver); 3362 if (error) 3363 sas_release_transport(mptsas_transport_template); 3364 3365 return error; 3366 } 3367 3368 static void __exit 3369 mptsas_exit(void) 3370 { 3371 pci_unregister_driver(&mptsas_driver); 3372 sas_release_transport(mptsas_transport_template); 3373 3374 mpt_reset_deregister(mptsasDoneCtx); 3375 mpt_event_deregister(mptsasDoneCtx); 3376 3377 mpt_deregister(mptsasMgmtCtx); 3378 mpt_deregister(mptsasInternalCtx); 3379 mpt_deregister(mptsasTaskCtx); 3380 mpt_deregister(mptsasDoneCtx); 3381 } 3382 3383 module_init(mptsas_init); 3384 module_exit(mptsas_exit); 3385