/* * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver * * Copyright (c) 2008-2009 USI Co., Ltd. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * */ #include <linux/slab.h> #include "pm8001_sas.h" #include "pm8001_chips.h" static struct scsi_transport_template *pm8001_stt; static const struct pm8001_chip_info pm8001_chips[] = { [chip_8001] = { 8, &pm8001_8001_dispatch,}, }; static int pm8001_id; LIST_HEAD(hba_list); struct workqueue_struct *pm8001_wq; /** * The main structure which LLDD must register for scsi core. */ static struct scsi_host_template pm8001_sht = { .module = THIS_MODULE, .name = DRV_NAME, .queuecommand = sas_queuecommand, .target_alloc = sas_target_alloc, .slave_configure = sas_slave_configure, .slave_destroy = sas_slave_destroy, .scan_finished = pm8001_scan_finished, .scan_start = pm8001_scan_start, .change_queue_depth = sas_change_queue_depth, .change_queue_type = sas_change_queue_type, .bios_param = sas_bios_param, .can_queue = 1, .cmd_per_lun = 1, .this_id = -1, .sg_tablesize = SG_ALL, .max_sectors = SCSI_DEFAULT_MAX_SECTORS, .use_clustering = ENABLE_CLUSTERING, .eh_device_reset_handler = sas_eh_device_reset_handler, .eh_bus_reset_handler = sas_eh_bus_reset_handler, .slave_alloc = sas_slave_alloc, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = pm8001_host_attrs, }; /** * Sas layer call this function to execute specific task. */ static struct sas_domain_function_template pm8001_transport_ops = { .lldd_dev_found = pm8001_dev_found, .lldd_dev_gone = pm8001_dev_gone, .lldd_execute_task = pm8001_queue_command, .lldd_control_phy = pm8001_phy_control, .lldd_abort_task = pm8001_abort_task, .lldd_abort_task_set = pm8001_abort_task_set, .lldd_clear_aca = pm8001_clear_aca, .lldd_clear_task_set = pm8001_clear_task_set, .lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset, .lldd_lu_reset = pm8001_lu_reset, .lldd_query_task = pm8001_query_task, }; /** *pm8001_phy_init - initiate our adapter phys *@pm8001_ha: our hba structure. *@phy_id: phy id. */ static void __devinit pm8001_phy_init(struct pm8001_hba_info *pm8001_ha, int phy_id) { struct pm8001_phy *phy = &pm8001_ha->phy[phy_id]; struct asd_sas_phy *sas_phy = &phy->sas_phy; phy->phy_state = 0; phy->pm8001_ha = pm8001_ha; sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0; sas_phy->class = SAS; sas_phy->iproto = SAS_PROTOCOL_ALL; sas_phy->tproto = 0; sas_phy->type = PHY_TYPE_PHYSICAL; sas_phy->role = PHY_ROLE_INITIATOR; sas_phy->oob_mode = OOB_NOT_CONNECTED; sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; sas_phy->id = phy_id; sas_phy->sas_addr = &pm8001_ha->sas_addr[0]; sas_phy->frame_rcvd = &phy->frame_rcvd[0]; sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata; sas_phy->lldd_phy = phy; } /** *pm8001_free - free hba *@pm8001_ha: our hba structure. * */ static void pm8001_free(struct pm8001_hba_info *pm8001_ha) { int i; if (!pm8001_ha) return; for (i = 0; i < USI_MAX_MEMCNT; i++) { if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) { pci_free_consistent(pm8001_ha->pdev, pm8001_ha->memoryMap.region[i].element_size, pm8001_ha->memoryMap.region[i].virt_ptr, pm8001_ha->memoryMap.region[i].phys_addr); } } PM8001_CHIP_DISP->chip_iounmap(pm8001_ha); if (pm8001_ha->shost) scsi_host_put(pm8001_ha->shost); flush_workqueue(pm8001_wq); kfree(pm8001_ha->tags); kfree(pm8001_ha); } #ifdef PM8001_USE_TASKLET static void pm8001_tasklet(unsigned long opaque) { struct pm8001_hba_info *pm8001_ha; pm8001_ha = (struct pm8001_hba_info *)opaque; if (unlikely(!pm8001_ha)) BUG_ON(1); PM8001_CHIP_DISP->isr(pm8001_ha); } #endif /** * pm8001_interrupt - when HBA originate a interrupt,we should invoke this * dispatcher to handle each case. * @irq: irq number. * @opaque: the passed general host adapter struct */ static irqreturn_t pm8001_interrupt(int irq, void *opaque) { struct pm8001_hba_info *pm8001_ha; irqreturn_t ret = IRQ_HANDLED; struct sas_ha_struct *sha = opaque; pm8001_ha = sha->lldd_ha; if (unlikely(!pm8001_ha)) return IRQ_NONE; if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha)) return IRQ_NONE; #ifdef PM8001_USE_TASKLET tasklet_schedule(&pm8001_ha->tasklet); #else ret = PM8001_CHIP_DISP->isr(pm8001_ha); #endif return ret; } /** * pm8001_alloc - initiate our hba structure and 6 DMAs area. * @pm8001_ha:our hba structure. * */ static int __devinit pm8001_alloc(struct pm8001_hba_info *pm8001_ha) { int i; spin_lock_init(&pm8001_ha->lock); for (i = 0; i < pm8001_ha->chip->n_phy; i++) { pm8001_phy_init(pm8001_ha, i); pm8001_ha->port[i].wide_port_phymap = 0; pm8001_ha->port[i].port_attached = 0; pm8001_ha->port[i].port_state = 0; INIT_LIST_HEAD(&pm8001_ha->port[i].list); } pm8001_ha->tags = kzalloc(PM8001_MAX_CCB, GFP_KERNEL); if (!pm8001_ha->tags) goto err_out; /* MPI Memory region 1 for AAP Event Log for fw */ pm8001_ha->memoryMap.region[AAP1].num_elements = 1; pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE; pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE; pm8001_ha->memoryMap.region[AAP1].alignment = 32; /* MPI Memory region 2 for IOP Event Log for fw */ pm8001_ha->memoryMap.region[IOP].num_elements = 1; pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE; pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE; pm8001_ha->memoryMap.region[IOP].alignment = 32; /* MPI Memory region 3 for consumer Index of inbound queues */ pm8001_ha->memoryMap.region[CI].num_elements = 1; pm8001_ha->memoryMap.region[CI].element_size = 4; pm8001_ha->memoryMap.region[CI].total_len = 4; pm8001_ha->memoryMap.region[CI].alignment = 4; /* MPI Memory region 4 for producer Index of outbound queues */ pm8001_ha->memoryMap.region[PI].num_elements = 1; pm8001_ha->memoryMap.region[PI].element_size = 4; pm8001_ha->memoryMap.region[PI].total_len = 4; pm8001_ha->memoryMap.region[PI].alignment = 4; /* MPI Memory region 5 inbound queues */ pm8001_ha->memoryMap.region[IB].num_elements = 256; pm8001_ha->memoryMap.region[IB].element_size = 64; pm8001_ha->memoryMap.region[IB].total_len = 256 * 64; pm8001_ha->memoryMap.region[IB].alignment = 64; /* MPI Memory region 6 inbound queues */ pm8001_ha->memoryMap.region[OB].num_elements = 256; pm8001_ha->memoryMap.region[OB].element_size = 64; pm8001_ha->memoryMap.region[OB].total_len = 256 * 64; pm8001_ha->memoryMap.region[OB].alignment = 64; /* Memory region write DMA*/ pm8001_ha->memoryMap.region[NVMD].num_elements = 1; pm8001_ha->memoryMap.region[NVMD].element_size = 4096; pm8001_ha->memoryMap.region[NVMD].total_len = 4096; /* Memory region for devices*/ pm8001_ha->memoryMap.region[DEV_MEM].num_elements = 1; pm8001_ha->memoryMap.region[DEV_MEM].element_size = PM8001_MAX_DEVICES * sizeof(struct pm8001_device); pm8001_ha->memoryMap.region[DEV_MEM].total_len = PM8001_MAX_DEVICES * sizeof(struct pm8001_device); /* Memory region for ccb_info*/ pm8001_ha->memoryMap.region[CCB_MEM].num_elements = 1; pm8001_ha->memoryMap.region[CCB_MEM].element_size = PM8001_MAX_CCB * sizeof(struct pm8001_ccb_info); pm8001_ha->memoryMap.region[CCB_MEM].total_len = PM8001_MAX_CCB * sizeof(struct pm8001_ccb_info); for (i = 0; i < USI_MAX_MEMCNT; i++) { if (pm8001_mem_alloc(pm8001_ha->pdev, &pm8001_ha->memoryMap.region[i].virt_ptr, &pm8001_ha->memoryMap.region[i].phys_addr, &pm8001_ha->memoryMap.region[i].phys_addr_hi, &pm8001_ha->memoryMap.region[i].phys_addr_lo, pm8001_ha->memoryMap.region[i].total_len, pm8001_ha->memoryMap.region[i].alignment) != 0) { PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("Mem%d alloc failed\n", i)); goto err_out; } } pm8001_ha->devices = pm8001_ha->memoryMap.region[DEV_MEM].virt_ptr; for (i = 0; i < PM8001_MAX_DEVICES; i++) { pm8001_ha->devices[i].dev_type = NO_DEVICE; pm8001_ha->devices[i].id = i; pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES; pm8001_ha->devices[i].running_req = 0; } pm8001_ha->ccb_info = pm8001_ha->memoryMap.region[CCB_MEM].virt_ptr; for (i = 0; i < PM8001_MAX_CCB; i++) { pm8001_ha->ccb_info[i].ccb_dma_handle = pm8001_ha->memoryMap.region[CCB_MEM].phys_addr + i * sizeof(struct pm8001_ccb_info); pm8001_ha->ccb_info[i].task = NULL; pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff; pm8001_ha->ccb_info[i].device = NULL; ++pm8001_ha->tags_num; } pm8001_ha->flags = PM8001F_INIT_TIME; /* Initialize tags */ pm8001_tag_init(pm8001_ha); return 0; err_out: return 1; } /** * pm8001_ioremap - remap the pci high physical address to kernal virtual * address so that we can access them. * @pm8001_ha:our hba structure. */ static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha) { u32 bar; u32 logicalBar = 0; struct pci_dev *pdev; pdev = pm8001_ha->pdev; /* map pci mem (PMC pci base 0-3)*/ for (bar = 0; bar < 6; bar++) { /* ** logical BARs for SPC: ** bar 0 and 1 - logical BAR0 ** bar 2 and 3 - logical BAR1 ** bar4 - logical BAR2 ** bar5 - logical BAR3 ** Skip the appropriate assignments: */ if ((bar == 1) || (bar == 3)) continue; if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) { pm8001_ha->io_mem[logicalBar].membase = pci_resource_start(pdev, bar); pm8001_ha->io_mem[logicalBar].membase &= (u32)PCI_BASE_ADDRESS_MEM_MASK; pm8001_ha->io_mem[logicalBar].memsize = pci_resource_len(pdev, bar); pm8001_ha->io_mem[logicalBar].memvirtaddr = ioremap(pm8001_ha->io_mem[logicalBar].membase, pm8001_ha->io_mem[logicalBar].memsize); PM8001_INIT_DBG(pm8001_ha, pm8001_printk("PCI: bar %d, logicalBar %d " "virt_addr=%lx,len=%d\n", bar, logicalBar, (unsigned long) pm8001_ha->io_mem[logicalBar].memvirtaddr, pm8001_ha->io_mem[logicalBar].memsize)); } else { pm8001_ha->io_mem[logicalBar].membase = 0; pm8001_ha->io_mem[logicalBar].memsize = 0; pm8001_ha->io_mem[logicalBar].memvirtaddr = 0; } logicalBar++; } return 0; } /** * pm8001_pci_alloc - initialize our ha card structure * @pdev: pci device. * @ent: ent * @shost: scsi host struct which has been initialized before. */ static struct pm8001_hba_info *__devinit pm8001_pci_alloc(struct pci_dev *pdev, u32 chip_id, struct Scsi_Host *shost) { struct pm8001_hba_info *pm8001_ha; struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); pm8001_ha = sha->lldd_ha; if (!pm8001_ha) return NULL; pm8001_ha->pdev = pdev; pm8001_ha->dev = &pdev->dev; pm8001_ha->chip_id = chip_id; pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id]; pm8001_ha->irq = pdev->irq; pm8001_ha->sas = sha; pm8001_ha->shost = shost; pm8001_ha->id = pm8001_id++; pm8001_ha->logging_level = 0x01; sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id); #ifdef PM8001_USE_TASKLET tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet, (unsigned long)pm8001_ha); #endif pm8001_ioremap(pm8001_ha); if (!pm8001_alloc(pm8001_ha)) return pm8001_ha; pm8001_free(pm8001_ha); return NULL; } /** * pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit * @pdev: pci device. */ static int pci_go_44(struct pci_dev *pdev) { int rc; if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(44))) { rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(44)); if (rc) { rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "44-bit DMA enable failed\n"); return rc; } } } else { rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "32-bit DMA enable failed\n"); return rc; } rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "32-bit consistent DMA enable failed\n"); return rc; } } return rc; } /** * pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them. * @shost: scsi host which has been allocated outside. * @chip_info: our ha struct. */ static int __devinit pm8001_prep_sas_ha_init(struct Scsi_Host * shost, const struct pm8001_chip_info *chip_info) { int phy_nr, port_nr; struct asd_sas_phy **arr_phy; struct asd_sas_port **arr_port; struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); phy_nr = chip_info->n_phy; port_nr = phy_nr; memset(sha, 0x00, sizeof(*sha)); arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL); if (!arr_phy) goto exit; arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL); if (!arr_port) goto exit_free2; sha->sas_phy = arr_phy; sha->sas_port = arr_port; sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL); if (!sha->lldd_ha) goto exit_free1; shost->transportt = pm8001_stt; shost->max_id = PM8001_MAX_DEVICES; shost->max_lun = 8; shost->max_channel = 0; shost->unique_id = pm8001_id; shost->max_cmd_len = 16; shost->can_queue = PM8001_CAN_QUEUE; shost->cmd_per_lun = 32; return 0; exit_free1: kfree(arr_port); exit_free2: kfree(arr_phy); exit: return -1; } /** * pm8001_post_sas_ha_init - initialize general hba struct defined in libsas * @shost: scsi host which has been allocated outside * @chip_info: our ha struct. */ static void __devinit pm8001_post_sas_ha_init(struct Scsi_Host *shost, const struct pm8001_chip_info *chip_info) { int i = 0; struct pm8001_hba_info *pm8001_ha; struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); pm8001_ha = sha->lldd_ha; for (i = 0; i < chip_info->n_phy; i++) { sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy; sha->sas_port[i] = &pm8001_ha->port[i].sas_port; } sha->sas_ha_name = DRV_NAME; sha->dev = pm8001_ha->dev; sha->lldd_module = THIS_MODULE; sha->sas_addr = &pm8001_ha->sas_addr[0]; sha->num_phys = chip_info->n_phy; sha->lldd_max_execute_num = 1; sha->lldd_queue_size = PM8001_CAN_QUEUE; sha->core.shost = shost; } /** * pm8001_init_sas_add - initialize sas address * @chip_info: our ha struct. * * Currently we just set the fixed SAS address to our HBA,for manufacture, * it should read from the EEPROM */ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) { u8 i; #ifdef PM8001_READ_VPD DECLARE_COMPLETION_ONSTACK(completion); struct pm8001_ioctl_payload payload; pm8001_ha->nvmd_completion = &completion; payload.minor_function = 0; payload.length = 128; payload.func_specific = kzalloc(128, GFP_KERNEL); PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); wait_for_completion(&completion); for (i = 0; i < pm8001_ha->chip->n_phy; i++) { memcpy(&pm8001_ha->phy[i].dev_sas_addr, pm8001_ha->sas_addr, SAS_ADDR_SIZE); PM8001_INIT_DBG(pm8001_ha, pm8001_printk("phy %d sas_addr = %016llx \n", i, pm8001_ha->phy[i].dev_sas_addr)); } #else for (i = 0; i < pm8001_ha->chip->n_phy; i++) { pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL; pm8001_ha->phy[i].dev_sas_addr = cpu_to_be64((u64) (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr)); } memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr, SAS_ADDR_SIZE); #endif } #ifdef PM8001_USE_MSIX /** * pm8001_setup_msix - enable MSI-X interrupt * @chip_info: our ha struct. * @irq_handler: irq_handler */ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha, irq_handler_t irq_handler) { u32 i = 0, j = 0; u32 number_of_intr = 1; int flag = 0; u32 max_entry; int rc; max_entry = sizeof(pm8001_ha->msix_entries) / sizeof(pm8001_ha->msix_entries[0]); flag |= IRQF_DISABLED; for (i = 0; i < max_entry ; i++) pm8001_ha->msix_entries[i].entry = i; rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries, number_of_intr); pm8001_ha->number_of_intr = number_of_intr; if (!rc) { for (i = 0; i < number_of_intr; i++) { if (request_irq(pm8001_ha->msix_entries[i].vector, irq_handler, flag, DRV_NAME, SHOST_TO_SAS_HA(pm8001_ha->shost))) { for (j = 0; j < i; j++) free_irq( pm8001_ha->msix_entries[j].vector, SHOST_TO_SAS_HA(pm8001_ha->shost)); pci_disable_msix(pm8001_ha->pdev); break; } } } return rc; } #endif /** * pm8001_request_irq - register interrupt * @chip_info: our ha struct. */ static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha) { struct pci_dev *pdev; irq_handler_t irq_handler = pm8001_interrupt; int rc; pdev = pm8001_ha->pdev; #ifdef PM8001_USE_MSIX if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) return pm8001_setup_msix(pm8001_ha, irq_handler); else goto intx; #endif intx: /* initialize the INT-X interrupt */ rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, DRV_NAME, SHOST_TO_SAS_HA(pm8001_ha->shost)); return rc; } /** * pm8001_pci_probe - probe supported device * @pdev: pci device which kernel has been prepared for. * @ent: pci device id * * This function is the main initialization function, when register a new * pci driver it is invoked, all struct an hardware initilization should be done * here, also, register interrupt */ static int __devinit pm8001_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { unsigned int rc; u32 pci_reg; struct pm8001_hba_info *pm8001_ha; struct Scsi_Host *shost = NULL; const struct pm8001_chip_info *chip; dev_printk(KERN_INFO, &pdev->dev, "pm8001: driver version %s\n", DRV_VERSION); rc = pci_enable_device(pdev); if (rc) goto err_out_enable; pci_set_master(pdev); /* * Enable pci slot busmaster by setting pci command register. * This is required by FW for Cyclone card. */ pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg); pci_reg |= 0x157; pci_write_config_dword(pdev, PCI_COMMAND, pci_reg); rc = pci_request_regions(pdev, DRV_NAME); if (rc) goto err_out_disable; rc = pci_go_44(pdev); if (rc) goto err_out_regions; shost = scsi_host_alloc(&pm8001_sht, sizeof(void *)); if (!shost) { rc = -ENOMEM; goto err_out_regions; } chip = &pm8001_chips[ent->driver_data]; SHOST_TO_SAS_HA(shost) = kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL); if (!SHOST_TO_SAS_HA(shost)) { rc = -ENOMEM; goto err_out_free_host; } rc = pm8001_prep_sas_ha_init(shost, chip); if (rc) { rc = -ENOMEM; goto err_out_free; } pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost)); pm8001_ha = pm8001_pci_alloc(pdev, chip_8001, shost); if (!pm8001_ha) { rc = -ENOMEM; goto err_out_free; } list_add_tail(&pm8001_ha->list, &hba_list); PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd); rc = PM8001_CHIP_DISP->chip_init(pm8001_ha); if (rc) goto err_out_ha_free; rc = scsi_add_host(shost, &pdev->dev); if (rc) goto err_out_ha_free; rc = pm8001_request_irq(pm8001_ha); if (rc) goto err_out_shost; PM8001_CHIP_DISP->interrupt_enable(pm8001_ha); pm8001_init_sas_add(pm8001_ha); pm8001_post_sas_ha_init(shost, chip); rc = sas_register_ha(SHOST_TO_SAS_HA(shost)); if (rc) goto err_out_shost; scsi_scan_host(pm8001_ha->shost); return 0; err_out_shost: scsi_remove_host(pm8001_ha->shost); err_out_ha_free: pm8001_free(pm8001_ha); err_out_free: kfree(SHOST_TO_SAS_HA(shost)); err_out_free_host: kfree(shost); err_out_regions: pci_release_regions(pdev); err_out_disable: pci_disable_device(pdev); err_out_enable: return rc; } static void __devexit pm8001_pci_remove(struct pci_dev *pdev) { struct sas_ha_struct *sha = pci_get_drvdata(pdev); struct pm8001_hba_info *pm8001_ha; int i; pm8001_ha = sha->lldd_ha; pci_set_drvdata(pdev, NULL); sas_unregister_ha(sha); sas_remove_host(pm8001_ha->shost); list_del(&pm8001_ha->list); scsi_remove_host(pm8001_ha->shost); PM8001_CHIP_DISP->interrupt_disable(pm8001_ha); PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd); #ifdef PM8001_USE_MSIX for (i = 0; i < pm8001_ha->number_of_intr; i++) synchronize_irq(pm8001_ha->msix_entries[i].vector); for (i = 0; i < pm8001_ha->number_of_intr; i++) free_irq(pm8001_ha->msix_entries[i].vector, sha); pci_disable_msix(pdev); #else free_irq(pm8001_ha->irq, sha); #endif #ifdef PM8001_USE_TASKLET tasklet_kill(&pm8001_ha->tasklet); #endif pm8001_free(pm8001_ha); kfree(sha->sas_phy); kfree(sha->sas_port); kfree(sha); pci_release_regions(pdev); pci_disable_device(pdev); } /** * pm8001_pci_suspend - power management suspend main entry point * @pdev: PCI device struct * @state: PM state change to (usually PCI_D3) * * Returns 0 success, anything else error. */ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state) { struct sas_ha_struct *sha = pci_get_drvdata(pdev); struct pm8001_hba_info *pm8001_ha; int i , pos; u32 device_state; pm8001_ha = sha->lldd_ha; flush_workqueue(pm8001_wq); scsi_block_requests(pm8001_ha->shost); pos = pci_find_capability(pdev, PCI_CAP_ID_PM); if (pos == 0) { printk(KERN_ERR " PCI PM not supported\n"); return -ENODEV; } PM8001_CHIP_DISP->interrupt_disable(pm8001_ha); PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd); #ifdef PM8001_USE_MSIX for (i = 0; i < pm8001_ha->number_of_intr; i++) synchronize_irq(pm8001_ha->msix_entries[i].vector); for (i = 0; i < pm8001_ha->number_of_intr; i++) free_irq(pm8001_ha->msix_entries[i].vector, sha); pci_disable_msix(pdev); #else free_irq(pm8001_ha->irq, sha); #endif #ifdef PM8001_USE_TASKLET tasklet_kill(&pm8001_ha->tasklet); #endif device_state = pci_choose_state(pdev, state); pm8001_printk("pdev=0x%p, slot=%s, entering " "operating state [D%d]\n", pdev, pm8001_ha->name, device_state); pci_save_state(pdev); pci_disable_device(pdev); pci_set_power_state(pdev, device_state); return 0; } /** * pm8001_pci_resume - power management resume main entry point * @pdev: PCI device struct * * Returns 0 success, anything else error. */ static int pm8001_pci_resume(struct pci_dev *pdev) { struct sas_ha_struct *sha = pci_get_drvdata(pdev); struct pm8001_hba_info *pm8001_ha; int rc; u32 device_state; pm8001_ha = sha->lldd_ha; device_state = pdev->current_state; pm8001_printk("pdev=0x%p, slot=%s, resuming from previous " "operating state [D%d]\n", pdev, pm8001_ha->name, device_state); pci_set_power_state(pdev, PCI_D0); pci_enable_wake(pdev, PCI_D0, 0); pci_restore_state(pdev); rc = pci_enable_device(pdev); if (rc) { pm8001_printk("slot=%s Enable device failed during resume\n", pm8001_ha->name); goto err_out_enable; } pci_set_master(pdev); rc = pci_go_44(pdev); if (rc) goto err_out_disable; PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd); rc = PM8001_CHIP_DISP->chip_init(pm8001_ha); if (rc) goto err_out_disable; PM8001_CHIP_DISP->interrupt_disable(pm8001_ha); rc = pm8001_request_irq(pm8001_ha); if (rc) goto err_out_disable; #ifdef PM8001_USE_TASKLET tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet, (unsigned long)pm8001_ha); #endif PM8001_CHIP_DISP->interrupt_enable(pm8001_ha); scsi_unblock_requests(pm8001_ha->shost); return 0; err_out_disable: scsi_remove_host(pm8001_ha->shost); pci_disable_device(pdev); err_out_enable: return rc; } static struct pci_device_id __devinitdata pm8001_pci_table[] = { { PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 }, { PCI_DEVICE(0x117c, 0x0042), .driver_data = chip_8001 }, {} /* terminate list */ }; static struct pci_driver pm8001_pci_driver = { .name = DRV_NAME, .id_table = pm8001_pci_table, .probe = pm8001_pci_probe, .remove = __devexit_p(pm8001_pci_remove), .suspend = pm8001_pci_suspend, .resume = pm8001_pci_resume, }; /** * pm8001_init - initialize scsi transport template */ static int __init pm8001_init(void) { int rc = -ENOMEM; pm8001_wq = alloc_workqueue("pm8001", 0, 0); if (!pm8001_wq) goto err; pm8001_id = 0; pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops); if (!pm8001_stt) goto err_wq; rc = pci_register_driver(&pm8001_pci_driver); if (rc) goto err_tp; return 0; err_tp: sas_release_transport(pm8001_stt); err_wq: destroy_workqueue(pm8001_wq); err: return rc; } static void __exit pm8001_exit(void) { pci_unregister_driver(&pm8001_pci_driver); sas_release_transport(pm8001_stt); destroy_workqueue(pm8001_wq); } module_init(pm8001_init); module_exit(pm8001_exit); MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>"); MODULE_DESCRIPTION("PMC-Sierra PM8001 SAS/SATA controller driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, pm8001_pci_table);