1 /* 2 * PMC-Sierra PM8001/8081/8088/8089 SAS/SATA based host adapters driver 3 * 4 * Copyright (c) 2008-2009 USI Co., Ltd. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * substantially similar to the "NO WARRANTY" disclaimer below 15 * ("Disclaimer") and any redistribution must be conditioned upon 16 * including a substantially similar Disclaimer requirement for further 17 * binary redistribution. 18 * 3. Neither the names of the above-listed copyright holders nor the names 19 * of any contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * Alternatively, this software may be distributed under the terms of the 23 * GNU General Public License ("GPL") version 2 as published by the Free 24 * Software Foundation. 25 * 26 * NO WARRANTY 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGES. 38 * 39 */ 40 41 #include <linux/slab.h> 42 #include "pm8001_sas.h" 43 #include "pm8001_chips.h" 44 #include "pm80xx_hwi.h" 45 46 static ulong logging_level = PM8001_FAIL_LOGGING | PM8001_IOERR_LOGGING | 47 PM8001_EVENT_LOGGING | PM8001_INIT_LOGGING; 48 module_param(logging_level, ulong, 0644); 49 MODULE_PARM_DESC(logging_level, " bits for enabling logging info."); 50 51 static ulong link_rate = LINKRATE_15 | LINKRATE_30 | LINKRATE_60 | LINKRATE_120; 52 module_param(link_rate, ulong, 0644); 53 MODULE_PARM_DESC(link_rate, "Enable link rate.\n" 54 " 1: Link rate 1.5G\n" 55 " 2: Link rate 3.0G\n" 56 " 4: Link rate 6.0G\n" 57 " 8: Link rate 12.0G\n"); 58 59 static struct scsi_transport_template *pm8001_stt; 60 static int pm8001_init_ccb_tag(struct pm8001_hba_info *); 61 62 /* 63 * chip info structure to identify chip key functionality as 64 * encryption available/not, no of ports, hw specific function ref 65 */ 66 static const struct pm8001_chip_info pm8001_chips[] = { 67 [chip_8001] = {0, 8, &pm8001_8001_dispatch,}, 68 [chip_8008] = {0, 8, &pm8001_80xx_dispatch,}, 69 [chip_8009] = {1, 8, &pm8001_80xx_dispatch,}, 70 [chip_8018] = {0, 16, &pm8001_80xx_dispatch,}, 71 [chip_8019] = {1, 16, &pm8001_80xx_dispatch,}, 72 [chip_8074] = {0, 8, &pm8001_80xx_dispatch,}, 73 [chip_8076] = {0, 16, &pm8001_80xx_dispatch,}, 74 [chip_8077] = {0, 16, &pm8001_80xx_dispatch,}, 75 [chip_8006] = {0, 16, &pm8001_80xx_dispatch,}, 76 [chip_8070] = {0, 8, &pm8001_80xx_dispatch,}, 77 [chip_8072] = {0, 16, &pm8001_80xx_dispatch,}, 78 }; 79 static int pm8001_id; 80 81 LIST_HEAD(hba_list); 82 83 struct workqueue_struct *pm8001_wq; 84 85 static void pm8001_map_queues(struct Scsi_Host *shost) 86 { 87 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 88 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 89 struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT]; 90 91 if (pm8001_ha->number_of_intr > 1) 92 blk_mq_pci_map_queues(qmap, pm8001_ha->pdev, 1); 93 94 return blk_mq_map_queues(qmap); 95 } 96 97 /* 98 * The main structure which LLDD must register for scsi core. 99 */ 100 static const struct scsi_host_template pm8001_sht = { 101 .module = THIS_MODULE, 102 .name = DRV_NAME, 103 .proc_name = DRV_NAME, 104 .queuecommand = sas_queuecommand, 105 .dma_need_drain = ata_scsi_dma_need_drain, 106 .target_alloc = sas_target_alloc, 107 .slave_configure = sas_slave_configure, 108 .scan_finished = pm8001_scan_finished, 109 .scan_start = pm8001_scan_start, 110 .change_queue_depth = sas_change_queue_depth, 111 .bios_param = sas_bios_param, 112 .can_queue = 1, 113 .this_id = -1, 114 .sg_tablesize = PM8001_MAX_DMA_SG, 115 .max_sectors = SCSI_DEFAULT_MAX_SECTORS, 116 .eh_device_reset_handler = sas_eh_device_reset_handler, 117 .eh_target_reset_handler = sas_eh_target_reset_handler, 118 .slave_alloc = sas_slave_alloc, 119 .target_destroy = sas_target_destroy, 120 .ioctl = sas_ioctl, 121 #ifdef CONFIG_COMPAT 122 .compat_ioctl = sas_ioctl, 123 #endif 124 .shost_groups = pm8001_host_groups, 125 .track_queue_depth = 1, 126 .cmd_per_lun = 32, 127 .map_queues = pm8001_map_queues, 128 }; 129 130 /* 131 * Sas layer call this function to execute specific task. 132 */ 133 static struct sas_domain_function_template pm8001_transport_ops = { 134 .lldd_dev_found = pm8001_dev_found, 135 .lldd_dev_gone = pm8001_dev_gone, 136 137 .lldd_execute_task = pm8001_queue_command, 138 .lldd_control_phy = pm8001_phy_control, 139 140 .lldd_abort_task = pm8001_abort_task, 141 .lldd_abort_task_set = sas_abort_task_set, 142 .lldd_clear_task_set = pm8001_clear_task_set, 143 .lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset, 144 .lldd_lu_reset = pm8001_lu_reset, 145 .lldd_query_task = pm8001_query_task, 146 .lldd_port_formed = pm8001_port_formed, 147 .lldd_tmf_exec_complete = pm8001_setds_completion, 148 .lldd_tmf_aborted = pm8001_tmf_aborted, 149 }; 150 151 /** 152 * pm8001_phy_init - initiate our adapter phys 153 * @pm8001_ha: our hba structure. 154 * @phy_id: phy id. 155 */ 156 static void pm8001_phy_init(struct pm8001_hba_info *pm8001_ha, int phy_id) 157 { 158 struct pm8001_phy *phy = &pm8001_ha->phy[phy_id]; 159 struct asd_sas_phy *sas_phy = &phy->sas_phy; 160 phy->phy_state = PHY_LINK_DISABLE; 161 phy->pm8001_ha = pm8001_ha; 162 phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; 163 phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS; 164 sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0; 165 sas_phy->class = SAS; 166 sas_phy->iproto = SAS_PROTOCOL_ALL; 167 sas_phy->tproto = 0; 168 sas_phy->type = PHY_TYPE_PHYSICAL; 169 sas_phy->role = PHY_ROLE_INITIATOR; 170 sas_phy->oob_mode = OOB_NOT_CONNECTED; 171 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; 172 sas_phy->id = phy_id; 173 sas_phy->sas_addr = (u8 *)&phy->dev_sas_addr; 174 sas_phy->frame_rcvd = &phy->frame_rcvd[0]; 175 sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata; 176 sas_phy->lldd_phy = phy; 177 } 178 179 /** 180 * pm8001_free - free hba 181 * @pm8001_ha: our hba structure. 182 */ 183 static void pm8001_free(struct pm8001_hba_info *pm8001_ha) 184 { 185 int i; 186 187 if (!pm8001_ha) 188 return; 189 190 for (i = 0; i < USI_MAX_MEMCNT; i++) { 191 if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) { 192 dma_free_coherent(&pm8001_ha->pdev->dev, 193 (pm8001_ha->memoryMap.region[i].total_len + 194 pm8001_ha->memoryMap.region[i].alignment), 195 pm8001_ha->memoryMap.region[i].virt_ptr, 196 pm8001_ha->memoryMap.region[i].phys_addr); 197 } 198 } 199 PM8001_CHIP_DISP->chip_iounmap(pm8001_ha); 200 flush_workqueue(pm8001_wq); 201 bitmap_free(pm8001_ha->rsvd_tags); 202 kfree(pm8001_ha); 203 } 204 205 #ifdef PM8001_USE_TASKLET 206 207 /** 208 * pm8001_tasklet() - tasklet for 64 msi-x interrupt handler 209 * @opaque: the passed general host adapter struct 210 * Note: pm8001_tasklet is common for pm8001 & pm80xx 211 */ 212 static void pm8001_tasklet(unsigned long opaque) 213 { 214 struct pm8001_hba_info *pm8001_ha; 215 struct isr_param *irq_vector; 216 217 irq_vector = (struct isr_param *)opaque; 218 pm8001_ha = irq_vector->drv_inst; 219 if (unlikely(!pm8001_ha)) 220 BUG_ON(1); 221 PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id); 222 } 223 #endif 224 225 /** 226 * pm8001_interrupt_handler_msix - main MSIX interrupt handler. 227 * It obtains the vector number and calls the equivalent bottom 228 * half or services directly. 229 * @irq: interrupt number 230 * @opaque: the passed outbound queue/vector. Host structure is 231 * retrieved from the same. 232 */ 233 static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque) 234 { 235 struct isr_param *irq_vector; 236 struct pm8001_hba_info *pm8001_ha; 237 irqreturn_t ret = IRQ_HANDLED; 238 irq_vector = (struct isr_param *)opaque; 239 pm8001_ha = irq_vector->drv_inst; 240 241 if (unlikely(!pm8001_ha)) 242 return IRQ_NONE; 243 if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha)) 244 return IRQ_NONE; 245 #ifdef PM8001_USE_TASKLET 246 tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]); 247 #else 248 ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id); 249 #endif 250 return ret; 251 } 252 253 /** 254 * pm8001_interrupt_handler_intx - main INTx interrupt handler. 255 * @irq: interrupt number 256 * @dev_id: sas_ha structure. The HBA is retrieved from sas_ha structure. 257 */ 258 259 static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id) 260 { 261 struct pm8001_hba_info *pm8001_ha; 262 irqreturn_t ret = IRQ_HANDLED; 263 struct sas_ha_struct *sha = dev_id; 264 pm8001_ha = sha->lldd_ha; 265 if (unlikely(!pm8001_ha)) 266 return IRQ_NONE; 267 if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha)) 268 return IRQ_NONE; 269 270 #ifdef PM8001_USE_TASKLET 271 tasklet_schedule(&pm8001_ha->tasklet[0]); 272 #else 273 ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0); 274 #endif 275 return ret; 276 } 277 278 static u32 pm8001_setup_irq(struct pm8001_hba_info *pm8001_ha); 279 static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha); 280 281 /** 282 * pm8001_alloc - initiate our hba structure and 6 DMAs area. 283 * @pm8001_ha: our hba structure. 284 * @ent: PCI device ID structure to match on 285 */ 286 static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, 287 const struct pci_device_id *ent) 288 { 289 int i, count = 0, rc = 0; 290 u32 ci_offset, ib_offset, ob_offset, pi_offset; 291 struct inbound_queue_table *ibq; 292 struct outbound_queue_table *obq; 293 294 spin_lock_init(&pm8001_ha->lock); 295 spin_lock_init(&pm8001_ha->bitmap_lock); 296 pm8001_dbg(pm8001_ha, INIT, "pm8001_alloc: PHY:%x\n", 297 pm8001_ha->chip->n_phy); 298 299 /* Setup Interrupt */ 300 rc = pm8001_setup_irq(pm8001_ha); 301 if (rc) { 302 pm8001_dbg(pm8001_ha, FAIL, 303 "pm8001_setup_irq failed [ret: %d]\n", rc); 304 goto err_out; 305 } 306 /* Request Interrupt */ 307 rc = pm8001_request_irq(pm8001_ha); 308 if (rc) 309 goto err_out; 310 311 count = pm8001_ha->max_q_num; 312 /* Queues are chosen based on the number of cores/msix availability */ 313 ib_offset = pm8001_ha->ib_offset = USI_MAX_MEMCNT_BASE; 314 ci_offset = pm8001_ha->ci_offset = ib_offset + count; 315 ob_offset = pm8001_ha->ob_offset = ci_offset + count; 316 pi_offset = pm8001_ha->pi_offset = ob_offset + count; 317 pm8001_ha->max_memcnt = pi_offset + count; 318 319 for (i = 0; i < pm8001_ha->chip->n_phy; i++) { 320 pm8001_phy_init(pm8001_ha, i); 321 pm8001_ha->port[i].wide_port_phymap = 0; 322 pm8001_ha->port[i].port_attached = 0; 323 pm8001_ha->port[i].port_state = 0; 324 INIT_LIST_HEAD(&pm8001_ha->port[i].list); 325 } 326 327 /* MPI Memory region 1 for AAP Event Log for fw */ 328 pm8001_ha->memoryMap.region[AAP1].num_elements = 1; 329 pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE; 330 pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE; 331 pm8001_ha->memoryMap.region[AAP1].alignment = 32; 332 333 /* MPI Memory region 2 for IOP Event Log for fw */ 334 pm8001_ha->memoryMap.region[IOP].num_elements = 1; 335 pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE; 336 pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE; 337 pm8001_ha->memoryMap.region[IOP].alignment = 32; 338 339 for (i = 0; i < count; i++) { 340 ibq = &pm8001_ha->inbnd_q_tbl[i]; 341 spin_lock_init(&ibq->iq_lock); 342 /* MPI Memory region 3 for consumer Index of inbound queues */ 343 pm8001_ha->memoryMap.region[ci_offset+i].num_elements = 1; 344 pm8001_ha->memoryMap.region[ci_offset+i].element_size = 4; 345 pm8001_ha->memoryMap.region[ci_offset+i].total_len = 4; 346 pm8001_ha->memoryMap.region[ci_offset+i].alignment = 4; 347 348 if ((ent->driver_data) != chip_8001) { 349 /* MPI Memory region 5 inbound queues */ 350 pm8001_ha->memoryMap.region[ib_offset+i].num_elements = 351 PM8001_MPI_QUEUE; 352 pm8001_ha->memoryMap.region[ib_offset+i].element_size 353 = 128; 354 pm8001_ha->memoryMap.region[ib_offset+i].total_len = 355 PM8001_MPI_QUEUE * 128; 356 pm8001_ha->memoryMap.region[ib_offset+i].alignment 357 = 128; 358 } else { 359 pm8001_ha->memoryMap.region[ib_offset+i].num_elements = 360 PM8001_MPI_QUEUE; 361 pm8001_ha->memoryMap.region[ib_offset+i].element_size 362 = 64; 363 pm8001_ha->memoryMap.region[ib_offset+i].total_len = 364 PM8001_MPI_QUEUE * 64; 365 pm8001_ha->memoryMap.region[ib_offset+i].alignment = 64; 366 } 367 } 368 369 for (i = 0; i < count; i++) { 370 obq = &pm8001_ha->outbnd_q_tbl[i]; 371 spin_lock_init(&obq->oq_lock); 372 /* MPI Memory region 4 for producer Index of outbound queues */ 373 pm8001_ha->memoryMap.region[pi_offset+i].num_elements = 1; 374 pm8001_ha->memoryMap.region[pi_offset+i].element_size = 4; 375 pm8001_ha->memoryMap.region[pi_offset+i].total_len = 4; 376 pm8001_ha->memoryMap.region[pi_offset+i].alignment = 4; 377 378 if (ent->driver_data != chip_8001) { 379 /* MPI Memory region 6 Outbound queues */ 380 pm8001_ha->memoryMap.region[ob_offset+i].num_elements = 381 PM8001_MPI_QUEUE; 382 pm8001_ha->memoryMap.region[ob_offset+i].element_size 383 = 128; 384 pm8001_ha->memoryMap.region[ob_offset+i].total_len = 385 PM8001_MPI_QUEUE * 128; 386 pm8001_ha->memoryMap.region[ob_offset+i].alignment 387 = 128; 388 } else { 389 /* MPI Memory region 6 Outbound queues */ 390 pm8001_ha->memoryMap.region[ob_offset+i].num_elements = 391 PM8001_MPI_QUEUE; 392 pm8001_ha->memoryMap.region[ob_offset+i].element_size 393 = 64; 394 pm8001_ha->memoryMap.region[ob_offset+i].total_len = 395 PM8001_MPI_QUEUE * 64; 396 pm8001_ha->memoryMap.region[ob_offset+i].alignment = 64; 397 } 398 399 } 400 /* Memory region write DMA*/ 401 pm8001_ha->memoryMap.region[NVMD].num_elements = 1; 402 pm8001_ha->memoryMap.region[NVMD].element_size = 4096; 403 pm8001_ha->memoryMap.region[NVMD].total_len = 4096; 404 405 /* Memory region for fw flash */ 406 pm8001_ha->memoryMap.region[FW_FLASH].total_len = 4096; 407 408 pm8001_ha->memoryMap.region[FORENSIC_MEM].num_elements = 1; 409 pm8001_ha->memoryMap.region[FORENSIC_MEM].total_len = 0x10000; 410 pm8001_ha->memoryMap.region[FORENSIC_MEM].element_size = 0x10000; 411 pm8001_ha->memoryMap.region[FORENSIC_MEM].alignment = 0x10000; 412 for (i = 0; i < pm8001_ha->max_memcnt; i++) { 413 struct mpi_mem *region = &pm8001_ha->memoryMap.region[i]; 414 415 if (pm8001_mem_alloc(pm8001_ha->pdev, 416 ®ion->virt_ptr, 417 ®ion->phys_addr, 418 ®ion->phys_addr_hi, 419 ®ion->phys_addr_lo, 420 region->total_len, 421 region->alignment) != 0) { 422 pm8001_dbg(pm8001_ha, FAIL, "Mem%d alloc failed\n", i); 423 goto err_out; 424 } 425 } 426 427 /* Memory region for devices*/ 428 pm8001_ha->devices = kzalloc(PM8001_MAX_DEVICES 429 * sizeof(struct pm8001_device), GFP_KERNEL); 430 if (!pm8001_ha->devices) { 431 rc = -ENOMEM; 432 goto err_out_nodev; 433 } 434 for (i = 0; i < PM8001_MAX_DEVICES; i++) { 435 pm8001_ha->devices[i].dev_type = SAS_PHY_UNUSED; 436 pm8001_ha->devices[i].id = i; 437 pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES; 438 atomic_set(&pm8001_ha->devices[i].running_req, 0); 439 } 440 pm8001_ha->flags = PM8001F_INIT_TIME; 441 return 0; 442 443 err_out_nodev: 444 for (i = 0; i < pm8001_ha->max_memcnt; i++) { 445 if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) { 446 dma_free_coherent(&pm8001_ha->pdev->dev, 447 (pm8001_ha->memoryMap.region[i].total_len + 448 pm8001_ha->memoryMap.region[i].alignment), 449 pm8001_ha->memoryMap.region[i].virt_ptr, 450 pm8001_ha->memoryMap.region[i].phys_addr); 451 } 452 } 453 err_out: 454 return 1; 455 } 456 457 /** 458 * pm8001_ioremap - remap the pci high physical address to kernel virtual 459 * address so that we can access them. 460 * @pm8001_ha: our hba structure. 461 */ 462 static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha) 463 { 464 u32 bar; 465 u32 logicalBar = 0; 466 struct pci_dev *pdev; 467 468 pdev = pm8001_ha->pdev; 469 /* map pci mem (PMC pci base 0-3)*/ 470 for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { 471 /* 472 ** logical BARs for SPC: 473 ** bar 0 and 1 - logical BAR0 474 ** bar 2 and 3 - logical BAR1 475 ** bar4 - logical BAR2 476 ** bar5 - logical BAR3 477 ** Skip the appropriate assignments: 478 */ 479 if ((bar == 1) || (bar == 3)) 480 continue; 481 if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) { 482 pm8001_ha->io_mem[logicalBar].membase = 483 pci_resource_start(pdev, bar); 484 pm8001_ha->io_mem[logicalBar].memsize = 485 pci_resource_len(pdev, bar); 486 pm8001_ha->io_mem[logicalBar].memvirtaddr = 487 ioremap(pm8001_ha->io_mem[logicalBar].membase, 488 pm8001_ha->io_mem[logicalBar].memsize); 489 if (!pm8001_ha->io_mem[logicalBar].memvirtaddr) { 490 pm8001_dbg(pm8001_ha, INIT, 491 "Failed to ioremap bar %d, logicalBar %d", 492 bar, logicalBar); 493 return -ENOMEM; 494 } 495 pm8001_dbg(pm8001_ha, INIT, 496 "base addr %llx virt_addr=%llx len=%d\n", 497 (u64)pm8001_ha->io_mem[logicalBar].membase, 498 (u64)(unsigned long) 499 pm8001_ha->io_mem[logicalBar].memvirtaddr, 500 pm8001_ha->io_mem[logicalBar].memsize); 501 } else { 502 pm8001_ha->io_mem[logicalBar].membase = 0; 503 pm8001_ha->io_mem[logicalBar].memsize = 0; 504 pm8001_ha->io_mem[logicalBar].memvirtaddr = NULL; 505 } 506 logicalBar++; 507 } 508 return 0; 509 } 510 511 /** 512 * pm8001_pci_alloc - initialize our ha card structure 513 * @pdev: pci device. 514 * @ent: ent 515 * @shost: scsi host struct which has been initialized before. 516 */ 517 static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev, 518 const struct pci_device_id *ent, 519 struct Scsi_Host *shost) 520 521 { 522 struct pm8001_hba_info *pm8001_ha; 523 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 524 int j; 525 526 pm8001_ha = sha->lldd_ha; 527 if (!pm8001_ha) 528 return NULL; 529 530 pm8001_ha->pdev = pdev; 531 pm8001_ha->dev = &pdev->dev; 532 pm8001_ha->chip_id = ent->driver_data; 533 pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id]; 534 pm8001_ha->irq = pdev->irq; 535 pm8001_ha->sas = sha; 536 pm8001_ha->shost = shost; 537 pm8001_ha->id = pm8001_id++; 538 pm8001_ha->logging_level = logging_level; 539 pm8001_ha->non_fatal_count = 0; 540 if (link_rate >= 1 && link_rate <= 15) 541 pm8001_ha->link_rate = (link_rate << 8); 542 else { 543 pm8001_ha->link_rate = LINKRATE_15 | LINKRATE_30 | 544 LINKRATE_60 | LINKRATE_120; 545 pm8001_dbg(pm8001_ha, FAIL, 546 "Setting link rate to default value\n"); 547 } 548 sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id); 549 /* IOMB size is 128 for 8088/89 controllers */ 550 if (pm8001_ha->chip_id != chip_8001) 551 pm8001_ha->iomb_size = IOMB_SIZE_SPCV; 552 else 553 pm8001_ha->iomb_size = IOMB_SIZE_SPC; 554 555 #ifdef PM8001_USE_TASKLET 556 /* Tasklet for non msi-x interrupt handler */ 557 if ((!pdev->msix_cap || !pci_msi_enabled()) 558 || (pm8001_ha->chip_id == chip_8001)) 559 tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet, 560 (unsigned long)&(pm8001_ha->irq_vector[0])); 561 else 562 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) 563 tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet, 564 (unsigned long)&(pm8001_ha->irq_vector[j])); 565 #endif 566 if (pm8001_ioremap(pm8001_ha)) 567 goto failed_pci_alloc; 568 if (!pm8001_alloc(pm8001_ha, ent)) 569 return pm8001_ha; 570 failed_pci_alloc: 571 pm8001_free(pm8001_ha); 572 return NULL; 573 } 574 575 /** 576 * pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit 577 * @pdev: pci device. 578 */ 579 static int pci_go_44(struct pci_dev *pdev) 580 { 581 int rc; 582 583 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44)); 584 if (rc) { 585 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 586 if (rc) 587 dev_printk(KERN_ERR, &pdev->dev, 588 "32-bit DMA enable failed\n"); 589 } 590 return rc; 591 } 592 593 /** 594 * pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them. 595 * @shost: scsi host which has been allocated outside. 596 * @chip_info: our ha struct. 597 */ 598 static int pm8001_prep_sas_ha_init(struct Scsi_Host *shost, 599 const struct pm8001_chip_info *chip_info) 600 { 601 int phy_nr, port_nr; 602 struct asd_sas_phy **arr_phy; 603 struct asd_sas_port **arr_port; 604 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 605 606 phy_nr = chip_info->n_phy; 607 port_nr = phy_nr; 608 memset(sha, 0x00, sizeof(*sha)); 609 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL); 610 if (!arr_phy) 611 goto exit; 612 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL); 613 if (!arr_port) 614 goto exit_free2; 615 616 sha->sas_phy = arr_phy; 617 sha->sas_port = arr_port; 618 sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL); 619 if (!sha->lldd_ha) 620 goto exit_free1; 621 622 shost->transportt = pm8001_stt; 623 shost->max_id = PM8001_MAX_DEVICES; 624 shost->unique_id = pm8001_id; 625 shost->max_cmd_len = 16; 626 return 0; 627 exit_free1: 628 kfree(arr_port); 629 exit_free2: 630 kfree(arr_phy); 631 exit: 632 return -1; 633 } 634 635 /** 636 * pm8001_post_sas_ha_init - initialize general hba struct defined in libsas 637 * @shost: scsi host which has been allocated outside 638 * @chip_info: our ha struct. 639 */ 640 static void pm8001_post_sas_ha_init(struct Scsi_Host *shost, 641 const struct pm8001_chip_info *chip_info) 642 { 643 int i = 0; 644 struct pm8001_hba_info *pm8001_ha; 645 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 646 647 pm8001_ha = sha->lldd_ha; 648 for (i = 0; i < chip_info->n_phy; i++) { 649 sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy; 650 sha->sas_port[i] = &pm8001_ha->port[i].sas_port; 651 sha->sas_phy[i]->sas_addr = 652 (u8 *)&pm8001_ha->phy[i].dev_sas_addr; 653 } 654 sha->sas_ha_name = DRV_NAME; 655 sha->dev = pm8001_ha->dev; 656 sha->strict_wide_ports = 1; 657 sha->lldd_module = THIS_MODULE; 658 sha->sas_addr = &pm8001_ha->sas_addr[0]; 659 sha->num_phys = chip_info->n_phy; 660 sha->core.shost = shost; 661 } 662 663 /** 664 * pm8001_init_sas_add - initialize sas address 665 * @pm8001_ha: our ha struct. 666 * 667 * Currently we just set the fixed SAS address to our HBA, for manufacture, 668 * it should read from the EEPROM 669 */ 670 static int pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) 671 { 672 u8 i, j; 673 u8 sas_add[8]; 674 #ifdef PM8001_READ_VPD 675 /* For new SPC controllers WWN is stored in flash vpd 676 * For SPC/SPCve controllers WWN is stored in EEPROM 677 * For Older SPC WWN is stored in NVMD 678 */ 679 DECLARE_COMPLETION_ONSTACK(completion); 680 struct pm8001_ioctl_payload payload; 681 u16 deviceid; 682 int rc; 683 unsigned long time_remaining; 684 685 if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) { 686 pm8001_dbg(pm8001_ha, FAIL, "controller is in fatal error state\n"); 687 return -EIO; 688 } 689 690 pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid); 691 pm8001_ha->nvmd_completion = &completion; 692 693 if (pm8001_ha->chip_id == chip_8001) { 694 if (deviceid == 0x8081 || deviceid == 0x0042) { 695 payload.minor_function = 4; 696 payload.rd_length = 4096; 697 } else { 698 payload.minor_function = 0; 699 payload.rd_length = 128; 700 } 701 } else if ((pm8001_ha->chip_id == chip_8070 || 702 pm8001_ha->chip_id == chip_8072) && 703 pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) { 704 payload.minor_function = 4; 705 payload.rd_length = 4096; 706 } else { 707 payload.minor_function = 1; 708 payload.rd_length = 4096; 709 } 710 payload.offset = 0; 711 payload.func_specific = kzalloc(payload.rd_length, GFP_KERNEL); 712 if (!payload.func_specific) { 713 pm8001_dbg(pm8001_ha, FAIL, "mem alloc fail\n"); 714 return -ENOMEM; 715 } 716 rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); 717 if (rc) { 718 kfree(payload.func_specific); 719 pm8001_dbg(pm8001_ha, FAIL, "nvmd failed\n"); 720 return -EIO; 721 } 722 time_remaining = wait_for_completion_timeout(&completion, 723 msecs_to_jiffies(60*1000)); // 1 min 724 if (!time_remaining) { 725 kfree(payload.func_specific); 726 pm8001_dbg(pm8001_ha, FAIL, "get_nvmd_req timeout\n"); 727 return -EIO; 728 } 729 730 731 for (i = 0, j = 0; i <= 7; i++, j++) { 732 if (pm8001_ha->chip_id == chip_8001) { 733 if (deviceid == 0x8081) 734 pm8001_ha->sas_addr[j] = 735 payload.func_specific[0x704 + i]; 736 else if (deviceid == 0x0042) 737 pm8001_ha->sas_addr[j] = 738 payload.func_specific[0x010 + i]; 739 } else if ((pm8001_ha->chip_id == chip_8070 || 740 pm8001_ha->chip_id == chip_8072) && 741 pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) { 742 pm8001_ha->sas_addr[j] = 743 payload.func_specific[0x010 + i]; 744 } else 745 pm8001_ha->sas_addr[j] = 746 payload.func_specific[0x804 + i]; 747 } 748 memcpy(sas_add, pm8001_ha->sas_addr, SAS_ADDR_SIZE); 749 for (i = 0; i < pm8001_ha->chip->n_phy; i++) { 750 if (i && ((i % 4) == 0)) 751 sas_add[7] = sas_add[7] + 4; 752 memcpy(&pm8001_ha->phy[i].dev_sas_addr, 753 sas_add, SAS_ADDR_SIZE); 754 pm8001_dbg(pm8001_ha, INIT, "phy %d sas_addr = %016llx\n", i, 755 pm8001_ha->phy[i].dev_sas_addr); 756 } 757 kfree(payload.func_specific); 758 #else 759 for (i = 0; i < pm8001_ha->chip->n_phy; i++) { 760 pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL; 761 pm8001_ha->phy[i].dev_sas_addr = 762 cpu_to_be64((u64) 763 (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr)); 764 } 765 memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr, 766 SAS_ADDR_SIZE); 767 #endif 768 return 0; 769 } 770 771 /* 772 * pm8001_get_phy_settings_info : Read phy setting values. 773 * @pm8001_ha : our hba. 774 */ 775 static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha) 776 { 777 778 #ifdef PM8001_READ_VPD 779 /*OPTION ROM FLASH read for the SPC cards */ 780 DECLARE_COMPLETION_ONSTACK(completion); 781 struct pm8001_ioctl_payload payload; 782 int rc; 783 784 pm8001_ha->nvmd_completion = &completion; 785 /* SAS ADDRESS read from flash / EEPROM */ 786 payload.minor_function = 6; 787 payload.offset = 0; 788 payload.rd_length = 4096; 789 payload.func_specific = kzalloc(4096, GFP_KERNEL); 790 if (!payload.func_specific) 791 return -ENOMEM; 792 /* Read phy setting values from flash */ 793 rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); 794 if (rc) { 795 kfree(payload.func_specific); 796 pm8001_dbg(pm8001_ha, INIT, "nvmd failed\n"); 797 return -ENOMEM; 798 } 799 wait_for_completion(&completion); 800 pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific); 801 kfree(payload.func_specific); 802 #endif 803 return 0; 804 } 805 806 struct pm8001_mpi3_phy_pg_trx_config { 807 u32 LaneLosCfg; 808 u32 LanePgaCfg1; 809 u32 LanePisoCfg1; 810 u32 LanePisoCfg2; 811 u32 LanePisoCfg3; 812 u32 LanePisoCfg4; 813 u32 LanePisoCfg5; 814 u32 LanePisoCfg6; 815 u32 LaneBctCtrl; 816 }; 817 818 /** 819 * pm8001_get_internal_phy_settings - Retrieves the internal PHY settings 820 * @pm8001_ha : our adapter 821 * @phycfg : PHY config page to populate 822 */ 823 static 824 void pm8001_get_internal_phy_settings(struct pm8001_hba_info *pm8001_ha, 825 struct pm8001_mpi3_phy_pg_trx_config *phycfg) 826 { 827 phycfg->LaneLosCfg = 0x00000132; 828 phycfg->LanePgaCfg1 = 0x00203949; 829 phycfg->LanePisoCfg1 = 0x000000FF; 830 phycfg->LanePisoCfg2 = 0xFF000001; 831 phycfg->LanePisoCfg3 = 0xE7011300; 832 phycfg->LanePisoCfg4 = 0x631C40C0; 833 phycfg->LanePisoCfg5 = 0xF8102036; 834 phycfg->LanePisoCfg6 = 0xF74A1000; 835 phycfg->LaneBctCtrl = 0x00FB33F8; 836 } 837 838 /** 839 * pm8001_get_external_phy_settings - Retrieves the external PHY settings 840 * @pm8001_ha : our adapter 841 * @phycfg : PHY config page to populate 842 */ 843 static 844 void pm8001_get_external_phy_settings(struct pm8001_hba_info *pm8001_ha, 845 struct pm8001_mpi3_phy_pg_trx_config *phycfg) 846 { 847 phycfg->LaneLosCfg = 0x00000132; 848 phycfg->LanePgaCfg1 = 0x00203949; 849 phycfg->LanePisoCfg1 = 0x000000FF; 850 phycfg->LanePisoCfg2 = 0xFF000001; 851 phycfg->LanePisoCfg3 = 0xE7011300; 852 phycfg->LanePisoCfg4 = 0x63349140; 853 phycfg->LanePisoCfg5 = 0xF8102036; 854 phycfg->LanePisoCfg6 = 0xF80D9300; 855 phycfg->LaneBctCtrl = 0x00FB33F8; 856 } 857 858 /** 859 * pm8001_get_phy_mask - Retrieves the mask that denotes if a PHY is int/ext 860 * @pm8001_ha : our adapter 861 * @phymask : The PHY mask 862 */ 863 static 864 void pm8001_get_phy_mask(struct pm8001_hba_info *pm8001_ha, int *phymask) 865 { 866 switch (pm8001_ha->pdev->subsystem_device) { 867 case 0x0070: /* H1280 - 8 external 0 internal */ 868 case 0x0072: /* H12F0 - 16 external 0 internal */ 869 *phymask = 0x0000; 870 break; 871 872 case 0x0071: /* H1208 - 0 external 8 internal */ 873 case 0x0073: /* H120F - 0 external 16 internal */ 874 *phymask = 0xFFFF; 875 break; 876 877 case 0x0080: /* H1244 - 4 external 4 internal */ 878 *phymask = 0x00F0; 879 break; 880 881 case 0x0081: /* H1248 - 4 external 8 internal */ 882 *phymask = 0x0FF0; 883 break; 884 885 case 0x0082: /* H1288 - 8 external 8 internal */ 886 *phymask = 0xFF00; 887 break; 888 889 default: 890 pm8001_dbg(pm8001_ha, INIT, 891 "Unknown subsystem device=0x%.04x\n", 892 pm8001_ha->pdev->subsystem_device); 893 } 894 } 895 896 /** 897 * pm8001_set_phy_settings_ven_117c_12G() - Configure ATTO 12Gb PHY settings 898 * @pm8001_ha : our adapter 899 */ 900 static 901 int pm8001_set_phy_settings_ven_117c_12G(struct pm8001_hba_info *pm8001_ha) 902 { 903 struct pm8001_mpi3_phy_pg_trx_config phycfg_int; 904 struct pm8001_mpi3_phy_pg_trx_config phycfg_ext; 905 int phymask = 0; 906 int i = 0; 907 908 memset(&phycfg_int, 0, sizeof(phycfg_int)); 909 memset(&phycfg_ext, 0, sizeof(phycfg_ext)); 910 911 pm8001_get_internal_phy_settings(pm8001_ha, &phycfg_int); 912 pm8001_get_external_phy_settings(pm8001_ha, &phycfg_ext); 913 pm8001_get_phy_mask(pm8001_ha, &phymask); 914 915 for (i = 0; i < pm8001_ha->chip->n_phy; i++) { 916 if (phymask & (1 << i)) {/* Internal PHY */ 917 pm8001_set_phy_profile_single(pm8001_ha, i, 918 sizeof(phycfg_int) / sizeof(u32), 919 (u32 *)&phycfg_int); 920 921 } else { /* External PHY */ 922 pm8001_set_phy_profile_single(pm8001_ha, i, 923 sizeof(phycfg_ext) / sizeof(u32), 924 (u32 *)&phycfg_ext); 925 } 926 } 927 928 return 0; 929 } 930 931 /** 932 * pm8001_configure_phy_settings - Configures PHY settings based on vendor ID. 933 * @pm8001_ha : our hba. 934 */ 935 static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha) 936 { 937 switch (pm8001_ha->pdev->subsystem_vendor) { 938 case PCI_VENDOR_ID_ATTO: 939 if (pm8001_ha->pdev->device == 0x0042) /* 6Gb */ 940 return 0; 941 else 942 return pm8001_set_phy_settings_ven_117c_12G(pm8001_ha); 943 944 case PCI_VENDOR_ID_ADAPTEC2: 945 case 0: 946 return 0; 947 948 default: 949 return pm8001_get_phy_settings_info(pm8001_ha); 950 } 951 } 952 953 #ifdef PM8001_USE_MSIX 954 /** 955 * pm8001_setup_msix - enable MSI-X interrupt 956 * @pm8001_ha: our ha struct. 957 */ 958 static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha) 959 { 960 unsigned int allocated_irq_vectors; 961 int rc; 962 963 /* SPCv controllers supports 64 msi-x */ 964 if (pm8001_ha->chip_id == chip_8001) { 965 rc = pci_alloc_irq_vectors(pm8001_ha->pdev, 1, 1, 966 PCI_IRQ_MSIX); 967 } else { 968 /* 969 * Queue index #0 is used always for housekeeping, so don't 970 * include in the affinity spreading. 971 */ 972 struct irq_affinity desc = { 973 .pre_vectors = 1, 974 }; 975 rc = pci_alloc_irq_vectors_affinity( 976 pm8001_ha->pdev, 2, PM8001_MAX_MSIX_VEC, 977 PCI_IRQ_MSIX | PCI_IRQ_AFFINITY, &desc); 978 } 979 980 allocated_irq_vectors = rc; 981 if (rc < 0) 982 return rc; 983 984 /* Assigns the number of interrupts */ 985 pm8001_ha->number_of_intr = allocated_irq_vectors; 986 987 /* Maximum queue number updating in HBA structure */ 988 pm8001_ha->max_q_num = allocated_irq_vectors; 989 990 pm8001_dbg(pm8001_ha, INIT, 991 "pci_alloc_irq_vectors request ret:%d no of intr %d\n", 992 rc, pm8001_ha->number_of_intr); 993 return 0; 994 } 995 996 static u32 pm8001_request_msix(struct pm8001_hba_info *pm8001_ha) 997 { 998 u32 i = 0, j = 0; 999 int flag = 0, rc = 0; 1000 int nr_irqs = pm8001_ha->number_of_intr; 1001 1002 if (pm8001_ha->chip_id != chip_8001) 1003 flag &= ~IRQF_SHARED; 1004 1005 pm8001_dbg(pm8001_ha, INIT, 1006 "pci_enable_msix request number of intr %d\n", 1007 pm8001_ha->number_of_intr); 1008 1009 if (nr_irqs > ARRAY_SIZE(pm8001_ha->intr_drvname)) 1010 nr_irqs = ARRAY_SIZE(pm8001_ha->intr_drvname); 1011 1012 for (i = 0; i < nr_irqs; i++) { 1013 snprintf(pm8001_ha->intr_drvname[i], 1014 sizeof(pm8001_ha->intr_drvname[0]), 1015 "%s-%d", pm8001_ha->name, i); 1016 pm8001_ha->irq_vector[i].irq_id = i; 1017 pm8001_ha->irq_vector[i].drv_inst = pm8001_ha; 1018 1019 rc = request_irq(pci_irq_vector(pm8001_ha->pdev, i), 1020 pm8001_interrupt_handler_msix, flag, 1021 pm8001_ha->intr_drvname[i], 1022 &(pm8001_ha->irq_vector[i])); 1023 if (rc) { 1024 for (j = 0; j < i; j++) { 1025 free_irq(pci_irq_vector(pm8001_ha->pdev, i), 1026 &(pm8001_ha->irq_vector[i])); 1027 } 1028 pci_free_irq_vectors(pm8001_ha->pdev); 1029 break; 1030 } 1031 } 1032 1033 return rc; 1034 } 1035 #endif 1036 1037 static u32 pm8001_setup_irq(struct pm8001_hba_info *pm8001_ha) 1038 { 1039 struct pci_dev *pdev; 1040 1041 pdev = pm8001_ha->pdev; 1042 1043 #ifdef PM8001_USE_MSIX 1044 if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) 1045 return pm8001_setup_msix(pm8001_ha); 1046 pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n"); 1047 #endif 1048 return 0; 1049 } 1050 1051 /** 1052 * pm8001_request_irq - register interrupt 1053 * @pm8001_ha: our ha struct. 1054 */ 1055 static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha) 1056 { 1057 struct pci_dev *pdev; 1058 int rc; 1059 1060 pdev = pm8001_ha->pdev; 1061 1062 #ifdef PM8001_USE_MSIX 1063 if (pdev->msix_cap && pci_msi_enabled()) 1064 return pm8001_request_msix(pm8001_ha); 1065 else { 1066 pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n"); 1067 goto intx; 1068 } 1069 #endif 1070 1071 intx: 1072 /* initialize the INT-X interrupt */ 1073 pm8001_ha->irq_vector[0].irq_id = 0; 1074 pm8001_ha->irq_vector[0].drv_inst = pm8001_ha; 1075 rc = request_irq(pdev->irq, pm8001_interrupt_handler_intx, IRQF_SHARED, 1076 pm8001_ha->name, SHOST_TO_SAS_HA(pm8001_ha->shost)); 1077 return rc; 1078 } 1079 1080 /** 1081 * pm8001_pci_probe - probe supported device 1082 * @pdev: pci device which kernel has been prepared for. 1083 * @ent: pci device id 1084 * 1085 * This function is the main initialization function, when register a new 1086 * pci driver it is invoked, all struct and hardware initialization should be 1087 * done here, also, register interrupt. 1088 */ 1089 static int pm8001_pci_probe(struct pci_dev *pdev, 1090 const struct pci_device_id *ent) 1091 { 1092 unsigned int rc; 1093 u32 pci_reg; 1094 u8 i = 0; 1095 struct pm8001_hba_info *pm8001_ha; 1096 struct Scsi_Host *shost = NULL; 1097 const struct pm8001_chip_info *chip; 1098 struct sas_ha_struct *sha; 1099 1100 dev_printk(KERN_INFO, &pdev->dev, 1101 "pm80xx: driver version %s\n", DRV_VERSION); 1102 rc = pci_enable_device(pdev); 1103 if (rc) 1104 goto err_out_enable; 1105 pci_set_master(pdev); 1106 /* 1107 * Enable pci slot busmaster by setting pci command register. 1108 * This is required by FW for Cyclone card. 1109 */ 1110 1111 pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg); 1112 pci_reg |= 0x157; 1113 pci_write_config_dword(pdev, PCI_COMMAND, pci_reg); 1114 rc = pci_request_regions(pdev, DRV_NAME); 1115 if (rc) 1116 goto err_out_disable; 1117 rc = pci_go_44(pdev); 1118 if (rc) 1119 goto err_out_regions; 1120 1121 shost = scsi_host_alloc(&pm8001_sht, sizeof(void *)); 1122 if (!shost) { 1123 rc = -ENOMEM; 1124 goto err_out_regions; 1125 } 1126 chip = &pm8001_chips[ent->driver_data]; 1127 sha = kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL); 1128 if (!sha) { 1129 rc = -ENOMEM; 1130 goto err_out_free_host; 1131 } 1132 SHOST_TO_SAS_HA(shost) = sha; 1133 1134 rc = pm8001_prep_sas_ha_init(shost, chip); 1135 if (rc) { 1136 rc = -ENOMEM; 1137 goto err_out_free; 1138 } 1139 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost)); 1140 /* ent->driver variable is used to differentiate between controllers */ 1141 pm8001_ha = pm8001_pci_alloc(pdev, ent, shost); 1142 if (!pm8001_ha) { 1143 rc = -ENOMEM; 1144 goto err_out_free; 1145 } 1146 1147 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); 1148 rc = PM8001_CHIP_DISP->chip_init(pm8001_ha); 1149 if (rc) { 1150 pm8001_dbg(pm8001_ha, FAIL, 1151 "chip_init failed [ret: %d]\n", rc); 1152 goto err_out_ha_free; 1153 } 1154 1155 rc = pm8001_init_ccb_tag(pm8001_ha); 1156 if (rc) 1157 goto err_out_enable; 1158 1159 1160 PM8001_CHIP_DISP->chip_post_init(pm8001_ha); 1161 1162 if (pm8001_ha->number_of_intr > 1) { 1163 shost->nr_hw_queues = pm8001_ha->number_of_intr - 1; 1164 /* 1165 * For now, ensure we're not sent too many commands by setting 1166 * host_tagset. This is also required if we start using request 1167 * tag. 1168 */ 1169 shost->host_tagset = 1; 1170 } 1171 1172 rc = scsi_add_host(shost, &pdev->dev); 1173 if (rc) 1174 goto err_out_ha_free; 1175 1176 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0); 1177 if (pm8001_ha->chip_id != chip_8001) { 1178 for (i = 1; i < pm8001_ha->number_of_intr; i++) 1179 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i); 1180 /* setup thermal configuration. */ 1181 pm80xx_set_thermal_config(pm8001_ha); 1182 } 1183 1184 if (pm8001_init_sas_add(pm8001_ha)) 1185 goto err_out_shost; 1186 /* phy setting support for motherboard controller */ 1187 rc = pm8001_configure_phy_settings(pm8001_ha); 1188 if (rc) 1189 goto err_out_shost; 1190 1191 pm8001_post_sas_ha_init(shost, chip); 1192 rc = sas_register_ha(SHOST_TO_SAS_HA(shost)); 1193 if (rc) { 1194 pm8001_dbg(pm8001_ha, FAIL, 1195 "sas_register_ha failed [ret: %d]\n", rc); 1196 goto err_out_shost; 1197 } 1198 list_add_tail(&pm8001_ha->list, &hba_list); 1199 pm8001_ha->flags = PM8001F_RUN_TIME; 1200 scsi_scan_host(pm8001_ha->shost); 1201 return 0; 1202 1203 err_out_shost: 1204 scsi_remove_host(pm8001_ha->shost); 1205 err_out_ha_free: 1206 pm8001_free(pm8001_ha); 1207 err_out_free: 1208 kfree(sha); 1209 err_out_free_host: 1210 scsi_host_put(shost); 1211 err_out_regions: 1212 pci_release_regions(pdev); 1213 err_out_disable: 1214 pci_disable_device(pdev); 1215 err_out_enable: 1216 return rc; 1217 } 1218 1219 /** 1220 * pm8001_init_ccb_tag - allocate memory to CCB and tag. 1221 * @pm8001_ha: our hba card information. 1222 */ 1223 static int pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha) 1224 { 1225 struct Scsi_Host *shost = pm8001_ha->shost; 1226 struct device *dev = pm8001_ha->dev; 1227 u32 max_out_io, ccb_count; 1228 int i; 1229 1230 max_out_io = pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io; 1231 ccb_count = min_t(int, PM8001_MAX_CCB, max_out_io); 1232 1233 shost->can_queue = ccb_count - PM8001_RESERVE_SLOT; 1234 1235 pm8001_ha->rsvd_tags = bitmap_zalloc(PM8001_RESERVE_SLOT, GFP_KERNEL); 1236 if (!pm8001_ha->rsvd_tags) 1237 goto err_out; 1238 1239 /* Memory region for ccb_info*/ 1240 pm8001_ha->ccb_count = ccb_count; 1241 pm8001_ha->ccb_info = 1242 kcalloc(ccb_count, sizeof(struct pm8001_ccb_info), GFP_KERNEL); 1243 if (!pm8001_ha->ccb_info) { 1244 pm8001_dbg(pm8001_ha, FAIL, 1245 "Unable to allocate memory for ccb\n"); 1246 goto err_out_noccb; 1247 } 1248 for (i = 0; i < ccb_count; i++) { 1249 pm8001_ha->ccb_info[i].buf_prd = dma_alloc_coherent(dev, 1250 sizeof(struct pm8001_prd) * PM8001_MAX_DMA_SG, 1251 &pm8001_ha->ccb_info[i].ccb_dma_handle, 1252 GFP_KERNEL); 1253 if (!pm8001_ha->ccb_info[i].buf_prd) { 1254 pm8001_dbg(pm8001_ha, FAIL, 1255 "ccb prd memory allocation error\n"); 1256 goto err_out; 1257 } 1258 pm8001_ha->ccb_info[i].task = NULL; 1259 pm8001_ha->ccb_info[i].ccb_tag = PM8001_INVALID_TAG; 1260 pm8001_ha->ccb_info[i].device = NULL; 1261 } 1262 1263 return 0; 1264 1265 err_out_noccb: 1266 kfree(pm8001_ha->devices); 1267 err_out: 1268 return -ENOMEM; 1269 } 1270 1271 static void pm8001_pci_remove(struct pci_dev *pdev) 1272 { 1273 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 1274 struct pm8001_hba_info *pm8001_ha; 1275 int i, j; 1276 pm8001_ha = sha->lldd_ha; 1277 sas_unregister_ha(sha); 1278 sas_remove_host(pm8001_ha->shost); 1279 list_del(&pm8001_ha->list); 1280 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF); 1281 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); 1282 1283 #ifdef PM8001_USE_MSIX 1284 for (i = 0; i < pm8001_ha->number_of_intr; i++) 1285 synchronize_irq(pci_irq_vector(pdev, i)); 1286 for (i = 0; i < pm8001_ha->number_of_intr; i++) 1287 free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]); 1288 pci_free_irq_vectors(pdev); 1289 #else 1290 free_irq(pm8001_ha->irq, sha); 1291 #endif 1292 #ifdef PM8001_USE_TASKLET 1293 /* For non-msix and msix interrupts */ 1294 if ((!pdev->msix_cap || !pci_msi_enabled()) || 1295 (pm8001_ha->chip_id == chip_8001)) 1296 tasklet_kill(&pm8001_ha->tasklet[0]); 1297 else 1298 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) 1299 tasklet_kill(&pm8001_ha->tasklet[j]); 1300 #endif 1301 scsi_host_put(pm8001_ha->shost); 1302 1303 for (i = 0; i < pm8001_ha->ccb_count; i++) { 1304 dma_free_coherent(&pm8001_ha->pdev->dev, 1305 sizeof(struct pm8001_prd) * PM8001_MAX_DMA_SG, 1306 pm8001_ha->ccb_info[i].buf_prd, 1307 pm8001_ha->ccb_info[i].ccb_dma_handle); 1308 } 1309 kfree(pm8001_ha->ccb_info); 1310 kfree(pm8001_ha->devices); 1311 1312 pm8001_free(pm8001_ha); 1313 kfree(sha->sas_phy); 1314 kfree(sha->sas_port); 1315 kfree(sha); 1316 pci_release_regions(pdev); 1317 pci_disable_device(pdev); 1318 } 1319 1320 /** 1321 * pm8001_pci_suspend - power management suspend main entry point 1322 * @dev: Device struct 1323 * 1324 * Return: 0 on success, anything else on error. 1325 */ 1326 static int __maybe_unused pm8001_pci_suspend(struct device *dev) 1327 { 1328 struct pci_dev *pdev = to_pci_dev(dev); 1329 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 1330 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 1331 int i, j; 1332 sas_suspend_ha(sha); 1333 flush_workqueue(pm8001_wq); 1334 scsi_block_requests(pm8001_ha->shost); 1335 if (!pdev->pm_cap) { 1336 dev_err(dev, " PCI PM not supported\n"); 1337 return -ENODEV; 1338 } 1339 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF); 1340 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); 1341 #ifdef PM8001_USE_MSIX 1342 for (i = 0; i < pm8001_ha->number_of_intr; i++) 1343 synchronize_irq(pci_irq_vector(pdev, i)); 1344 for (i = 0; i < pm8001_ha->number_of_intr; i++) 1345 free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]); 1346 pci_free_irq_vectors(pdev); 1347 #else 1348 free_irq(pm8001_ha->irq, sha); 1349 #endif 1350 #ifdef PM8001_USE_TASKLET 1351 /* For non-msix and msix interrupts */ 1352 if ((!pdev->msix_cap || !pci_msi_enabled()) || 1353 (pm8001_ha->chip_id == chip_8001)) 1354 tasklet_kill(&pm8001_ha->tasklet[0]); 1355 else 1356 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) 1357 tasklet_kill(&pm8001_ha->tasklet[j]); 1358 #endif 1359 pm8001_info(pm8001_ha, "pdev=0x%p, slot=%s, entering " 1360 "suspended state\n", pdev, 1361 pm8001_ha->name); 1362 return 0; 1363 } 1364 1365 /** 1366 * pm8001_pci_resume - power management resume main entry point 1367 * @dev: Device struct 1368 * 1369 * Return: 0 on success, anything else on error. 1370 */ 1371 static int __maybe_unused pm8001_pci_resume(struct device *dev) 1372 { 1373 struct pci_dev *pdev = to_pci_dev(dev); 1374 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 1375 struct pm8001_hba_info *pm8001_ha; 1376 int rc; 1377 u8 i = 0, j; 1378 DECLARE_COMPLETION_ONSTACK(completion); 1379 1380 pm8001_ha = sha->lldd_ha; 1381 1382 pm8001_info(pm8001_ha, 1383 "pdev=0x%p, slot=%s, resuming from previous operating state [D%d]\n", 1384 pdev, pm8001_ha->name, pdev->current_state); 1385 1386 rc = pci_go_44(pdev); 1387 if (rc) 1388 goto err_out_disable; 1389 sas_prep_resume_ha(sha); 1390 /* chip soft rst only for spc */ 1391 if (pm8001_ha->chip_id == chip_8001) { 1392 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); 1393 pm8001_dbg(pm8001_ha, INIT, "chip soft reset successful\n"); 1394 } 1395 rc = PM8001_CHIP_DISP->chip_init(pm8001_ha); 1396 if (rc) 1397 goto err_out_disable; 1398 1399 /* disable all the interrupt bits */ 1400 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF); 1401 1402 rc = pm8001_request_irq(pm8001_ha); 1403 if (rc) 1404 goto err_out_disable; 1405 #ifdef PM8001_USE_TASKLET 1406 /* Tasklet for non msi-x interrupt handler */ 1407 if ((!pdev->msix_cap || !pci_msi_enabled()) || 1408 (pm8001_ha->chip_id == chip_8001)) 1409 tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet, 1410 (unsigned long)&(pm8001_ha->irq_vector[0])); 1411 else 1412 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) 1413 tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet, 1414 (unsigned long)&(pm8001_ha->irq_vector[j])); 1415 #endif 1416 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0); 1417 if (pm8001_ha->chip_id != chip_8001) { 1418 for (i = 1; i < pm8001_ha->number_of_intr; i++) 1419 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i); 1420 } 1421 1422 /* Chip documentation for the 8070 and 8072 SPCv */ 1423 /* states that a 500ms minimum delay is required */ 1424 /* before issuing commands. Otherwise, the firmware */ 1425 /* will enter an unrecoverable state. */ 1426 1427 if (pm8001_ha->chip_id == chip_8070 || 1428 pm8001_ha->chip_id == chip_8072) { 1429 mdelay(500); 1430 } 1431 1432 /* Spin up the PHYs */ 1433 1434 pm8001_ha->flags = PM8001F_RUN_TIME; 1435 for (i = 0; i < pm8001_ha->chip->n_phy; i++) { 1436 pm8001_ha->phy[i].enable_completion = &completion; 1437 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i); 1438 wait_for_completion(&completion); 1439 } 1440 sas_resume_ha(sha); 1441 return 0; 1442 1443 err_out_disable: 1444 scsi_remove_host(pm8001_ha->shost); 1445 1446 return rc; 1447 } 1448 1449 /* update of pci device, vendor id and driver data with 1450 * unique value for each of the controller 1451 */ 1452 static struct pci_device_id pm8001_pci_table[] = { 1453 { PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 }, 1454 { PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 }, 1455 { PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 }, 1456 { PCI_VDEVICE(ATTO, 0x0042), chip_8001 }, 1457 /* Support for SPC/SPCv/SPCve controllers */ 1458 { PCI_VDEVICE(ADAPTEC2, 0x8001), chip_8001 }, 1459 { PCI_VDEVICE(PMC_Sierra, 0x8008), chip_8008 }, 1460 { PCI_VDEVICE(ADAPTEC2, 0x8008), chip_8008 }, 1461 { PCI_VDEVICE(PMC_Sierra, 0x8018), chip_8018 }, 1462 { PCI_VDEVICE(ADAPTEC2, 0x8018), chip_8018 }, 1463 { PCI_VDEVICE(PMC_Sierra, 0x8009), chip_8009 }, 1464 { PCI_VDEVICE(ADAPTEC2, 0x8009), chip_8009 }, 1465 { PCI_VDEVICE(PMC_Sierra, 0x8019), chip_8019 }, 1466 { PCI_VDEVICE(ADAPTEC2, 0x8019), chip_8019 }, 1467 { PCI_VDEVICE(PMC_Sierra, 0x8074), chip_8074 }, 1468 { PCI_VDEVICE(ADAPTEC2, 0x8074), chip_8074 }, 1469 { PCI_VDEVICE(PMC_Sierra, 0x8076), chip_8076 }, 1470 { PCI_VDEVICE(ADAPTEC2, 0x8076), chip_8076 }, 1471 { PCI_VDEVICE(PMC_Sierra, 0x8077), chip_8077 }, 1472 { PCI_VDEVICE(ADAPTEC2, 0x8077), chip_8077 }, 1473 { PCI_VENDOR_ID_ADAPTEC2, 0x8081, 1474 PCI_VENDOR_ID_ADAPTEC2, 0x0400, 0, 0, chip_8001 }, 1475 { PCI_VENDOR_ID_ADAPTEC2, 0x8081, 1476 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8001 }, 1477 { PCI_VENDOR_ID_ADAPTEC2, 0x8088, 1478 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8008 }, 1479 { PCI_VENDOR_ID_ADAPTEC2, 0x8088, 1480 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8008 }, 1481 { PCI_VENDOR_ID_ADAPTEC2, 0x8089, 1482 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8009 }, 1483 { PCI_VENDOR_ID_ADAPTEC2, 0x8089, 1484 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8009 }, 1485 { PCI_VENDOR_ID_ADAPTEC2, 0x8088, 1486 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8018 }, 1487 { PCI_VENDOR_ID_ADAPTEC2, 0x8088, 1488 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8018 }, 1489 { PCI_VENDOR_ID_ADAPTEC2, 0x8089, 1490 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8019 }, 1491 { PCI_VENDOR_ID_ADAPTEC2, 0x8089, 1492 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8019 }, 1493 { PCI_VENDOR_ID_ADAPTEC2, 0x8074, 1494 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8074 }, 1495 { PCI_VENDOR_ID_ADAPTEC2, 0x8076, 1496 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8076 }, 1497 { PCI_VENDOR_ID_ADAPTEC2, 0x8077, 1498 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8077 }, 1499 { PCI_VENDOR_ID_ADAPTEC2, 0x8074, 1500 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8074 }, 1501 { PCI_VENDOR_ID_ADAPTEC2, 0x8076, 1502 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8076 }, 1503 { PCI_VENDOR_ID_ADAPTEC2, 0x8077, 1504 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8077 }, 1505 { PCI_VENDOR_ID_ADAPTEC2, 0x8076, 1506 PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8076 }, 1507 { PCI_VENDOR_ID_ADAPTEC2, 0x8077, 1508 PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8077 }, 1509 { PCI_VENDOR_ID_ADAPTEC2, 0x8074, 1510 PCI_VENDOR_ID_ADAPTEC2, 0x0404, 0, 0, chip_8074 }, 1511 { PCI_VENDOR_ID_ATTO, 0x8070, 1512 PCI_VENDOR_ID_ATTO, 0x0070, 0, 0, chip_8070 }, 1513 { PCI_VENDOR_ID_ATTO, 0x8070, 1514 PCI_VENDOR_ID_ATTO, 0x0071, 0, 0, chip_8070 }, 1515 { PCI_VENDOR_ID_ATTO, 0x8072, 1516 PCI_VENDOR_ID_ATTO, 0x0072, 0, 0, chip_8072 }, 1517 { PCI_VENDOR_ID_ATTO, 0x8072, 1518 PCI_VENDOR_ID_ATTO, 0x0073, 0, 0, chip_8072 }, 1519 { PCI_VENDOR_ID_ATTO, 0x8070, 1520 PCI_VENDOR_ID_ATTO, 0x0080, 0, 0, chip_8070 }, 1521 { PCI_VENDOR_ID_ATTO, 0x8072, 1522 PCI_VENDOR_ID_ATTO, 0x0081, 0, 0, chip_8072 }, 1523 { PCI_VENDOR_ID_ATTO, 0x8072, 1524 PCI_VENDOR_ID_ATTO, 0x0082, 0, 0, chip_8072 }, 1525 {} /* terminate list */ 1526 }; 1527 1528 static SIMPLE_DEV_PM_OPS(pm8001_pci_pm_ops, 1529 pm8001_pci_suspend, 1530 pm8001_pci_resume); 1531 1532 static struct pci_driver pm8001_pci_driver = { 1533 .name = DRV_NAME, 1534 .id_table = pm8001_pci_table, 1535 .probe = pm8001_pci_probe, 1536 .remove = pm8001_pci_remove, 1537 .driver.pm = &pm8001_pci_pm_ops, 1538 }; 1539 1540 /** 1541 * pm8001_init - initialize scsi transport template 1542 */ 1543 static int __init pm8001_init(void) 1544 { 1545 int rc = -ENOMEM; 1546 1547 pm8001_wq = alloc_workqueue("pm80xx", 0, 0); 1548 if (!pm8001_wq) 1549 goto err; 1550 1551 pm8001_id = 0; 1552 pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops); 1553 if (!pm8001_stt) 1554 goto err_wq; 1555 rc = pci_register_driver(&pm8001_pci_driver); 1556 if (rc) 1557 goto err_tp; 1558 return 0; 1559 1560 err_tp: 1561 sas_release_transport(pm8001_stt); 1562 err_wq: 1563 destroy_workqueue(pm8001_wq); 1564 err: 1565 return rc; 1566 } 1567 1568 static void __exit pm8001_exit(void) 1569 { 1570 pci_unregister_driver(&pm8001_pci_driver); 1571 sas_release_transport(pm8001_stt); 1572 destroy_workqueue(pm8001_wq); 1573 } 1574 1575 module_init(pm8001_init); 1576 module_exit(pm8001_exit); 1577 1578 MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>"); 1579 MODULE_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>"); 1580 MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>"); 1581 MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>"); 1582 MODULE_DESCRIPTION( 1583 "PMC-Sierra PM8001/8006/8081/8088/8089/8074/8076/8077/8070/8072 " 1584 "SAS/SATA controller driver"); 1585 MODULE_VERSION(DRV_VERSION); 1586 MODULE_LICENSE("GPL"); 1587 MODULE_DEVICE_TABLE(pci, pm8001_pci_table); 1588 1589