diff options
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_init.c')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_init.c | 1569 |
1 files changed, 1569 insertions, 0 deletions
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c new file mode 100644 index 0000000000..443a3176c6 --- /dev/null +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -0,0 +1,1569 @@ +/* + * PMC-Sierra PM8001/8081/8088/8089 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" +#include "pm80xx_hwi.h" + +static ulong logging_level = PM8001_FAIL_LOGGING | PM8001_IOERR_LOGGING | + PM8001_EVENT_LOGGING | PM8001_INIT_LOGGING; +module_param(logging_level, ulong, 0644); +MODULE_PARM_DESC(logging_level, " bits for enabling logging info."); + +static ulong link_rate = LINKRATE_15 | LINKRATE_30 | LINKRATE_60 | LINKRATE_120; +module_param(link_rate, ulong, 0644); +MODULE_PARM_DESC(link_rate, "Enable link rate.\n" + " 1: Link rate 1.5G\n" + " 2: Link rate 3.0G\n" + " 4: Link rate 6.0G\n" + " 8: Link rate 12.0G\n"); + +static struct scsi_transport_template *pm8001_stt; +static int pm8001_init_ccb_tag(struct pm8001_hba_info *); + +/* + * chip info structure to identify chip key functionality as + * encryption available/not, no of ports, hw specific function ref + */ +static const struct pm8001_chip_info pm8001_chips[] = { + [chip_8001] = {0, 8, &pm8001_8001_dispatch,}, + [chip_8008] = {0, 8, &pm8001_80xx_dispatch,}, + [chip_8009] = {1, 8, &pm8001_80xx_dispatch,}, + [chip_8018] = {0, 16, &pm8001_80xx_dispatch,}, + [chip_8019] = {1, 16, &pm8001_80xx_dispatch,}, + [chip_8074] = {0, 8, &pm8001_80xx_dispatch,}, + [chip_8076] = {0, 16, &pm8001_80xx_dispatch,}, + [chip_8077] = {0, 16, &pm8001_80xx_dispatch,}, + [chip_8006] = {0, 16, &pm8001_80xx_dispatch,}, + [chip_8070] = {0, 8, &pm8001_80xx_dispatch,}, + [chip_8072] = {0, 16, &pm8001_80xx_dispatch,}, +}; +static int pm8001_id; + +LIST_HEAD(hba_list); + +struct workqueue_struct *pm8001_wq; + +static void pm8001_map_queues(struct Scsi_Host *shost) +{ + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT]; + + if (pm8001_ha->number_of_intr > 1) + blk_mq_pci_map_queues(qmap, pm8001_ha->pdev, 1); + + return blk_mq_map_queues(qmap); +} + +/* + * The main structure which LLDD must register for scsi core. + */ +static const struct scsi_host_template pm8001_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .proc_name = DRV_NAME, + .queuecommand = sas_queuecommand, + .dma_need_drain = ata_scsi_dma_need_drain, + .target_alloc = sas_target_alloc, + .slave_configure = sas_slave_configure, + .scan_finished = pm8001_scan_finished, + .scan_start = pm8001_scan_start, + .change_queue_depth = sas_change_queue_depth, + .bios_param = sas_bios_param, + .can_queue = 1, + .this_id = -1, + .sg_tablesize = PM8001_MAX_DMA_SG, + .max_sectors = SCSI_DEFAULT_MAX_SECTORS, + .eh_device_reset_handler = sas_eh_device_reset_handler, + .eh_target_reset_handler = sas_eh_target_reset_handler, + .slave_alloc = sas_slave_alloc, + .target_destroy = sas_target_destroy, + .ioctl = sas_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = sas_ioctl, +#endif + .shost_groups = pm8001_host_groups, + .track_queue_depth = 1, + .cmd_per_lun = 32, + .map_queues = pm8001_map_queues, +}; + +/* + * 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 = sas_abort_task_set, + .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, + .lldd_port_formed = pm8001_port_formed, + .lldd_tmf_exec_complete = pm8001_setds_completion, + .lldd_tmf_aborted = pm8001_tmf_aborted, +}; + +/** + * pm8001_phy_init - initiate our adapter phys + * @pm8001_ha: our hba structure. + * @phy_id: phy id. + */ +static void 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 = PHY_LINK_DISABLE; + phy->pm8001_ha = pm8001_ha; + phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; + phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS; + sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0; + sas_phy->iproto = SAS_PROTOCOL_ALL; + sas_phy->tproto = 0; + 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 = (u8 *)&phy->dev_sas_addr; + 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) { + dma_free_coherent(&pm8001_ha->pdev->dev, + (pm8001_ha->memoryMap.region[i].total_len + + pm8001_ha->memoryMap.region[i].alignment), + pm8001_ha->memoryMap.region[i].virt_ptr, + pm8001_ha->memoryMap.region[i].phys_addr); + } + } + PM8001_CHIP_DISP->chip_iounmap(pm8001_ha); + flush_workqueue(pm8001_wq); + bitmap_free(pm8001_ha->rsvd_tags); + kfree(pm8001_ha); +} + +#ifdef PM8001_USE_TASKLET + +/** + * pm8001_tasklet() - tasklet for 64 msi-x interrupt handler + * @opaque: the passed general host adapter struct + * Note: pm8001_tasklet is common for pm8001 & pm80xx + */ +static void pm8001_tasklet(unsigned long opaque) +{ + struct pm8001_hba_info *pm8001_ha; + struct isr_param *irq_vector; + + irq_vector = (struct isr_param *)opaque; + pm8001_ha = irq_vector->drv_inst; + if (unlikely(!pm8001_ha)) + BUG_ON(1); + PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id); +} +#endif + +/** + * pm8001_interrupt_handler_msix - main MSIX interrupt handler. + * It obtains the vector number and calls the equivalent bottom + * half or services directly. + * @irq: interrupt number + * @opaque: the passed outbound queue/vector. Host structure is + * retrieved from the same. + */ +static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque) +{ + struct isr_param *irq_vector; + struct pm8001_hba_info *pm8001_ha; + irqreturn_t ret = IRQ_HANDLED; + irq_vector = (struct isr_param *)opaque; + pm8001_ha = irq_vector->drv_inst; + + if (unlikely(!pm8001_ha)) + return IRQ_NONE; + if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha)) + return IRQ_NONE; +#ifdef PM8001_USE_TASKLET + tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]); +#else + ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id); +#endif + return ret; +} + +/** + * pm8001_interrupt_handler_intx - main INTx interrupt handler. + * @irq: interrupt number + * @dev_id: sas_ha structure. The HBA is retrieved from sas_ha structure. + */ + +static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id) +{ + struct pm8001_hba_info *pm8001_ha; + irqreturn_t ret = IRQ_HANDLED; + struct sas_ha_struct *sha = dev_id; + pm8001_ha = sha->lldd_ha; + if (unlikely(!pm8001_ha)) + return IRQ_NONE; + if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha)) + return IRQ_NONE; + +#ifdef PM8001_USE_TASKLET + tasklet_schedule(&pm8001_ha->tasklet[0]); +#else + ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0); +#endif + return ret; +} + +static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha); + +/** + * pm8001_alloc - initiate our hba structure and 6 DMAs area. + * @pm8001_ha: our hba structure. + * @ent: PCI device ID structure to match on + */ +static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, + const struct pci_device_id *ent) +{ + int i, count = 0, rc = 0; + u32 ci_offset, ib_offset, ob_offset, pi_offset; + struct inbound_queue_table *ibq; + struct outbound_queue_table *obq; + + spin_lock_init(&pm8001_ha->lock); + spin_lock_init(&pm8001_ha->bitmap_lock); + pm8001_dbg(pm8001_ha, INIT, "pm8001_alloc: PHY:%x\n", + pm8001_ha->chip->n_phy); + + /* Request Interrupt */ + rc = pm8001_request_irq(pm8001_ha); + if (rc) + goto err_out; + + count = pm8001_ha->max_q_num; + /* Queues are chosen based on the number of cores/msix availability */ + ib_offset = pm8001_ha->ib_offset = USI_MAX_MEMCNT_BASE; + ci_offset = pm8001_ha->ci_offset = ib_offset + count; + ob_offset = pm8001_ha->ob_offset = ci_offset + count; + pi_offset = pm8001_ha->pi_offset = ob_offset + count; + pm8001_ha->max_memcnt = pi_offset + count; + + 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); + } + + /* 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; + + for (i = 0; i < count; i++) { + ibq = &pm8001_ha->inbnd_q_tbl[i]; + spin_lock_init(&ibq->iq_lock); + /* MPI Memory region 3 for consumer Index of inbound queues */ + pm8001_ha->memoryMap.region[ci_offset+i].num_elements = 1; + pm8001_ha->memoryMap.region[ci_offset+i].element_size = 4; + pm8001_ha->memoryMap.region[ci_offset+i].total_len = 4; + pm8001_ha->memoryMap.region[ci_offset+i].alignment = 4; + + if ((ent->driver_data) != chip_8001) { + /* MPI Memory region 5 inbound queues */ + pm8001_ha->memoryMap.region[ib_offset+i].num_elements = + PM8001_MPI_QUEUE; + pm8001_ha->memoryMap.region[ib_offset+i].element_size + = 128; + pm8001_ha->memoryMap.region[ib_offset+i].total_len = + PM8001_MPI_QUEUE * 128; + pm8001_ha->memoryMap.region[ib_offset+i].alignment + = 128; + } else { + pm8001_ha->memoryMap.region[ib_offset+i].num_elements = + PM8001_MPI_QUEUE; + pm8001_ha->memoryMap.region[ib_offset+i].element_size + = 64; + pm8001_ha->memoryMap.region[ib_offset+i].total_len = + PM8001_MPI_QUEUE * 64; + pm8001_ha->memoryMap.region[ib_offset+i].alignment = 64; + } + } + + for (i = 0; i < count; i++) { + obq = &pm8001_ha->outbnd_q_tbl[i]; + spin_lock_init(&obq->oq_lock); + /* MPI Memory region 4 for producer Index of outbound queues */ + pm8001_ha->memoryMap.region[pi_offset+i].num_elements = 1; + pm8001_ha->memoryMap.region[pi_offset+i].element_size = 4; + pm8001_ha->memoryMap.region[pi_offset+i].total_len = 4; + pm8001_ha->memoryMap.region[pi_offset+i].alignment = 4; + + if (ent->driver_data != chip_8001) { + /* MPI Memory region 6 Outbound queues */ + pm8001_ha->memoryMap.region[ob_offset+i].num_elements = + PM8001_MPI_QUEUE; + pm8001_ha->memoryMap.region[ob_offset+i].element_size + = 128; + pm8001_ha->memoryMap.region[ob_offset+i].total_len = + PM8001_MPI_QUEUE * 128; + pm8001_ha->memoryMap.region[ob_offset+i].alignment + = 128; + } else { + /* MPI Memory region 6 Outbound queues */ + pm8001_ha->memoryMap.region[ob_offset+i].num_elements = + PM8001_MPI_QUEUE; + pm8001_ha->memoryMap.region[ob_offset+i].element_size + = 64; + pm8001_ha->memoryMap.region[ob_offset+i].total_len = + PM8001_MPI_QUEUE * 64; + pm8001_ha->memoryMap.region[ob_offset+i].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 fw flash */ + pm8001_ha->memoryMap.region[FW_FLASH].total_len = 4096; + + pm8001_ha->memoryMap.region[FORENSIC_MEM].num_elements = 1; + pm8001_ha->memoryMap.region[FORENSIC_MEM].total_len = 0x10000; + pm8001_ha->memoryMap.region[FORENSIC_MEM].element_size = 0x10000; + pm8001_ha->memoryMap.region[FORENSIC_MEM].alignment = 0x10000; + for (i = 0; i < pm8001_ha->max_memcnt; i++) { + struct mpi_mem *region = &pm8001_ha->memoryMap.region[i]; + + if (pm8001_mem_alloc(pm8001_ha->pdev, + ®ion->virt_ptr, + ®ion->phys_addr, + ®ion->phys_addr_hi, + ®ion->phys_addr_lo, + region->total_len, + region->alignment) != 0) { + pm8001_dbg(pm8001_ha, FAIL, "Mem%d alloc failed\n", i); + goto err_out; + } + } + + /* Memory region for devices*/ + pm8001_ha->devices = kzalloc(PM8001_MAX_DEVICES + * sizeof(struct pm8001_device), GFP_KERNEL); + if (!pm8001_ha->devices) { + rc = -ENOMEM; + goto err_out_nodev; + } + for (i = 0; i < PM8001_MAX_DEVICES; i++) { + pm8001_ha->devices[i].dev_type = SAS_PHY_UNUSED; + pm8001_ha->devices[i].id = i; + pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES; + atomic_set(&pm8001_ha->devices[i].running_req, 0); + } + pm8001_ha->flags = PM8001F_INIT_TIME; + return 0; + +err_out_nodev: + for (i = 0; i < pm8001_ha->max_memcnt; i++) { + if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) { + dma_free_coherent(&pm8001_ha->pdev->dev, + (pm8001_ha->memoryMap.region[i].total_len + + pm8001_ha->memoryMap.region[i].alignment), + pm8001_ha->memoryMap.region[i].virt_ptr, + pm8001_ha->memoryMap.region[i].phys_addr); + } + } +err_out: + return 1; +} + +/** + * pm8001_ioremap - remap the pci high physical address to kernel 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 < PCI_STD_NUM_BARS; 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].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); + if (!pm8001_ha->io_mem[logicalBar].memvirtaddr) { + pm8001_dbg(pm8001_ha, INIT, + "Failed to ioremap bar %d, logicalBar %d", + bar, logicalBar); + return -ENOMEM; + } + pm8001_dbg(pm8001_ha, INIT, + "base addr %llx virt_addr=%llx len=%d\n", + (u64)pm8001_ha->io_mem[logicalBar].membase, + (u64)(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 = NULL; + } + 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 *pm8001_pci_alloc(struct pci_dev *pdev, + const struct pci_device_id *ent, + struct Scsi_Host *shost) + +{ + struct pm8001_hba_info *pm8001_ha; + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + int j; + + pm8001_ha = sha->lldd_ha; + if (!pm8001_ha) + return NULL; + + pm8001_ha->pdev = pdev; + pm8001_ha->dev = &pdev->dev; + pm8001_ha->chip_id = ent->driver_data; + 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 = logging_level; + pm8001_ha->non_fatal_count = 0; + if (link_rate >= 1 && link_rate <= 15) + pm8001_ha->link_rate = (link_rate << 8); + else { + pm8001_ha->link_rate = LINKRATE_15 | LINKRATE_30 | + LINKRATE_60 | LINKRATE_120; + pm8001_dbg(pm8001_ha, FAIL, + "Setting link rate to default value\n"); + } + sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id); + /* IOMB size is 128 for 8088/89 controllers */ + if (pm8001_ha->chip_id != chip_8001) + pm8001_ha->iomb_size = IOMB_SIZE_SPCV; + else + pm8001_ha->iomb_size = IOMB_SIZE_SPC; + +#ifdef PM8001_USE_TASKLET + /* Tasklet for non msi-x interrupt handler */ + if ((!pdev->msix_cap || !pci_msi_enabled()) + || (pm8001_ha->chip_id == chip_8001)) + tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet, + (unsigned long)&(pm8001_ha->irq_vector[0])); + else + for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) + tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet, + (unsigned long)&(pm8001_ha->irq_vector[j])); +#endif + if (pm8001_ioremap(pm8001_ha)) + goto failed_pci_alloc; + if (!pm8001_alloc(pm8001_ha, ent)) + return pm8001_ha; +failed_pci_alloc: + 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; + + rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44)); + if (rc) { + rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (rc) + dev_printk(KERN_ERR, &pdev->dev, + "32-bit DMA enable failed\n"); + } + 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 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->unique_id = pm8001_id; + shost->max_cmd_len = 16; + 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 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_phy[i]->sas_addr = + (u8 *)&pm8001_ha->phy[i].dev_sas_addr; + } + sha->sas_ha_name = DRV_NAME; + sha->dev = pm8001_ha->dev; + sha->strict_wide_ports = 1; + sha->sas_addr = &pm8001_ha->sas_addr[0]; + sha->num_phys = chip_info->n_phy; + sha->shost = shost; +} + +/** + * pm8001_init_sas_add - initialize sas address + * @pm8001_ha: our ha struct. + * + * Currently we just set the fixed SAS address to our HBA, for manufacture, + * it should read from the EEPROM + */ +static int pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) +{ + u8 i, j; + u8 sas_add[8]; +#ifdef PM8001_READ_VPD + /* For new SPC controllers WWN is stored in flash vpd + * For SPC/SPCve controllers WWN is stored in EEPROM + * For Older SPC WWN is stored in NVMD + */ + DECLARE_COMPLETION_ONSTACK(completion); + struct pm8001_ioctl_payload payload; + u16 deviceid; + int rc; + unsigned long time_remaining; + + if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) { + pm8001_dbg(pm8001_ha, FAIL, "controller is in fatal error state\n"); + return -EIO; + } + + pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid); + pm8001_ha->nvmd_completion = &completion; + + if (pm8001_ha->chip_id == chip_8001) { + if (deviceid == 0x8081 || deviceid == 0x0042) { + payload.minor_function = 4; + payload.rd_length = 4096; + } else { + payload.minor_function = 0; + payload.rd_length = 128; + } + } else if ((pm8001_ha->chip_id == chip_8070 || + pm8001_ha->chip_id == chip_8072) && + pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) { + payload.minor_function = 4; + payload.rd_length = 4096; + } else { + payload.minor_function = 1; + payload.rd_length = 4096; + } + payload.offset = 0; + payload.func_specific = kzalloc(payload.rd_length, GFP_KERNEL); + if (!payload.func_specific) { + pm8001_dbg(pm8001_ha, FAIL, "mem alloc fail\n"); + return -ENOMEM; + } + rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + if (rc) { + kfree(payload.func_specific); + pm8001_dbg(pm8001_ha, FAIL, "nvmd failed\n"); + return -EIO; + } + time_remaining = wait_for_completion_timeout(&completion, + msecs_to_jiffies(60*1000)); // 1 min + if (!time_remaining) { + kfree(payload.func_specific); + pm8001_dbg(pm8001_ha, FAIL, "get_nvmd_req timeout\n"); + return -EIO; + } + + + for (i = 0, j = 0; i <= 7; i++, j++) { + if (pm8001_ha->chip_id == chip_8001) { + if (deviceid == 0x8081) + pm8001_ha->sas_addr[j] = + payload.func_specific[0x704 + i]; + else if (deviceid == 0x0042) + pm8001_ha->sas_addr[j] = + payload.func_specific[0x010 + i]; + } else if ((pm8001_ha->chip_id == chip_8070 || + pm8001_ha->chip_id == chip_8072) && + pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) { + pm8001_ha->sas_addr[j] = + payload.func_specific[0x010 + i]; + } else + pm8001_ha->sas_addr[j] = + payload.func_specific[0x804 + i]; + } + memcpy(sas_add, pm8001_ha->sas_addr, SAS_ADDR_SIZE); + for (i = 0; i < pm8001_ha->chip->n_phy; i++) { + if (i && ((i % 4) == 0)) + sas_add[7] = sas_add[7] + 4; + memcpy(&pm8001_ha->phy[i].dev_sas_addr, + sas_add, SAS_ADDR_SIZE); + pm8001_dbg(pm8001_ha, INIT, "phy %d sas_addr = %016llx\n", i, + pm8001_ha->phy[i].dev_sas_addr); + } + kfree(payload.func_specific); +#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 + return 0; +} + +/* + * pm8001_get_phy_settings_info : Read phy setting values. + * @pm8001_ha : our hba. + */ +static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha) +{ + +#ifdef PM8001_READ_VPD + /*OPTION ROM FLASH read for the SPC cards */ + DECLARE_COMPLETION_ONSTACK(completion); + struct pm8001_ioctl_payload payload; + int rc; + + pm8001_ha->nvmd_completion = &completion; + /* SAS ADDRESS read from flash / EEPROM */ + payload.minor_function = 6; + payload.offset = 0; + payload.rd_length = 4096; + payload.func_specific = kzalloc(4096, GFP_KERNEL); + if (!payload.func_specific) + return -ENOMEM; + /* Read phy setting values from flash */ + rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + if (rc) { + kfree(payload.func_specific); + pm8001_dbg(pm8001_ha, INIT, "nvmd failed\n"); + return -ENOMEM; + } + wait_for_completion(&completion); + pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific); + kfree(payload.func_specific); +#endif + return 0; +} + +struct pm8001_mpi3_phy_pg_trx_config { + u32 LaneLosCfg; + u32 LanePgaCfg1; + u32 LanePisoCfg1; + u32 LanePisoCfg2; + u32 LanePisoCfg3; + u32 LanePisoCfg4; + u32 LanePisoCfg5; + u32 LanePisoCfg6; + u32 LaneBctCtrl; +}; + +/** + * pm8001_get_internal_phy_settings - Retrieves the internal PHY settings + * @pm8001_ha : our adapter + * @phycfg : PHY config page to populate + */ +static +void pm8001_get_internal_phy_settings(struct pm8001_hba_info *pm8001_ha, + struct pm8001_mpi3_phy_pg_trx_config *phycfg) +{ + phycfg->LaneLosCfg = 0x00000132; + phycfg->LanePgaCfg1 = 0x00203949; + phycfg->LanePisoCfg1 = 0x000000FF; + phycfg->LanePisoCfg2 = 0xFF000001; + phycfg->LanePisoCfg3 = 0xE7011300; + phycfg->LanePisoCfg4 = 0x631C40C0; + phycfg->LanePisoCfg5 = 0xF8102036; + phycfg->LanePisoCfg6 = 0xF74A1000; + phycfg->LaneBctCtrl = 0x00FB33F8; +} + +/** + * pm8001_get_external_phy_settings - Retrieves the external PHY settings + * @pm8001_ha : our adapter + * @phycfg : PHY config page to populate + */ +static +void pm8001_get_external_phy_settings(struct pm8001_hba_info *pm8001_ha, + struct pm8001_mpi3_phy_pg_trx_config *phycfg) +{ + phycfg->LaneLosCfg = 0x00000132; + phycfg->LanePgaCfg1 = 0x00203949; + phycfg->LanePisoCfg1 = 0x000000FF; + phycfg->LanePisoCfg2 = 0xFF000001; + phycfg->LanePisoCfg3 = 0xE7011300; + phycfg->LanePisoCfg4 = 0x63349140; + phycfg->LanePisoCfg5 = 0xF8102036; + phycfg->LanePisoCfg6 = 0xF80D9300; + phycfg->LaneBctCtrl = 0x00FB33F8; +} + +/** + * pm8001_get_phy_mask - Retrieves the mask that denotes if a PHY is int/ext + * @pm8001_ha : our adapter + * @phymask : The PHY mask + */ +static +void pm8001_get_phy_mask(struct pm8001_hba_info *pm8001_ha, int *phymask) +{ + switch (pm8001_ha->pdev->subsystem_device) { + case 0x0070: /* H1280 - 8 external 0 internal */ + case 0x0072: /* H12F0 - 16 external 0 internal */ + *phymask = 0x0000; + break; + + case 0x0071: /* H1208 - 0 external 8 internal */ + case 0x0073: /* H120F - 0 external 16 internal */ + *phymask = 0xFFFF; + break; + + case 0x0080: /* H1244 - 4 external 4 internal */ + *phymask = 0x00F0; + break; + + case 0x0081: /* H1248 - 4 external 8 internal */ + *phymask = 0x0FF0; + break; + + case 0x0082: /* H1288 - 8 external 8 internal */ + *phymask = 0xFF00; + break; + + default: + pm8001_dbg(pm8001_ha, INIT, + "Unknown subsystem device=0x%.04x\n", + pm8001_ha->pdev->subsystem_device); + } +} + +/** + * pm8001_set_phy_settings_ven_117c_12G() - Configure ATTO 12Gb PHY settings + * @pm8001_ha : our adapter + */ +static +int pm8001_set_phy_settings_ven_117c_12G(struct pm8001_hba_info *pm8001_ha) +{ + struct pm8001_mpi3_phy_pg_trx_config phycfg_int; + struct pm8001_mpi3_phy_pg_trx_config phycfg_ext; + int phymask = 0; + int i = 0; + + memset(&phycfg_int, 0, sizeof(phycfg_int)); + memset(&phycfg_ext, 0, sizeof(phycfg_ext)); + + pm8001_get_internal_phy_settings(pm8001_ha, &phycfg_int); + pm8001_get_external_phy_settings(pm8001_ha, &phycfg_ext); + pm8001_get_phy_mask(pm8001_ha, &phymask); + + for (i = 0; i < pm8001_ha->chip->n_phy; i++) { + if (phymask & (1 << i)) {/* Internal PHY */ + pm8001_set_phy_profile_single(pm8001_ha, i, + sizeof(phycfg_int) / sizeof(u32), + (u32 *)&phycfg_int); + + } else { /* External PHY */ + pm8001_set_phy_profile_single(pm8001_ha, i, + sizeof(phycfg_ext) / sizeof(u32), + (u32 *)&phycfg_ext); + } + } + + return 0; +} + +/** + * pm8001_configure_phy_settings - Configures PHY settings based on vendor ID. + * @pm8001_ha : our hba. + */ +static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha) +{ + switch (pm8001_ha->pdev->subsystem_vendor) { + case PCI_VENDOR_ID_ATTO: + if (pm8001_ha->pdev->device == 0x0042) /* 6Gb */ + return 0; + else + return pm8001_set_phy_settings_ven_117c_12G(pm8001_ha); + + case PCI_VENDOR_ID_ADAPTEC2: + case 0: + return 0; + + default: + return pm8001_get_phy_settings_info(pm8001_ha); + } +} + +#ifdef PM8001_USE_MSIX +/** + * pm8001_setup_msix - enable MSI-X interrupt + * @pm8001_ha: our ha struct. + */ +static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha) +{ + unsigned int allocated_irq_vectors; + int rc; + + /* SPCv controllers supports 64 msi-x */ + if (pm8001_ha->chip_id == chip_8001) { + rc = pci_alloc_irq_vectors(pm8001_ha->pdev, 1, 1, + PCI_IRQ_MSIX); + } else { + /* + * Queue index #0 is used always for housekeeping, so don't + * include in the affinity spreading. + */ + struct irq_affinity desc = { + .pre_vectors = 1, + }; + rc = pci_alloc_irq_vectors_affinity( + pm8001_ha->pdev, 2, PM8001_MAX_MSIX_VEC, + PCI_IRQ_MSIX | PCI_IRQ_AFFINITY, &desc); + } + + allocated_irq_vectors = rc; + if (rc < 0) + return rc; + + /* Assigns the number of interrupts */ + pm8001_ha->number_of_intr = allocated_irq_vectors; + + /* Maximum queue number updating in HBA structure */ + pm8001_ha->max_q_num = allocated_irq_vectors; + + pm8001_dbg(pm8001_ha, INIT, + "pci_alloc_irq_vectors request ret:%d no of intr %d\n", + rc, pm8001_ha->number_of_intr); + return 0; +} + +static u32 pm8001_request_msix(struct pm8001_hba_info *pm8001_ha) +{ + u32 i = 0, j = 0; + int flag = 0, rc = 0; + int nr_irqs = pm8001_ha->number_of_intr; + + if (pm8001_ha->chip_id != chip_8001) + flag &= ~IRQF_SHARED; + + pm8001_dbg(pm8001_ha, INIT, + "pci_enable_msix request number of intr %d\n", + pm8001_ha->number_of_intr); + + if (nr_irqs > ARRAY_SIZE(pm8001_ha->intr_drvname)) + nr_irqs = ARRAY_SIZE(pm8001_ha->intr_drvname); + + for (i = 0; i < nr_irqs; i++) { + snprintf(pm8001_ha->intr_drvname[i], + sizeof(pm8001_ha->intr_drvname[0]), + "%s-%d", pm8001_ha->name, i); + pm8001_ha->irq_vector[i].irq_id = i; + pm8001_ha->irq_vector[i].drv_inst = pm8001_ha; + + rc = request_irq(pci_irq_vector(pm8001_ha->pdev, i), + pm8001_interrupt_handler_msix, flag, + pm8001_ha->intr_drvname[i], + &(pm8001_ha->irq_vector[i])); + if (rc) { + for (j = 0; j < i; j++) { + free_irq(pci_irq_vector(pm8001_ha->pdev, i), + &(pm8001_ha->irq_vector[i])); + } + pci_free_irq_vectors(pm8001_ha->pdev); + break; + } + } + + return rc; +} +#endif + +/** + * pm8001_request_irq - register interrupt + * @pm8001_ha: our ha struct. + */ +static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha) +{ + struct pci_dev *pdev = pm8001_ha->pdev; +#ifdef PM8001_USE_MSIX + int rc; + + if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) { + rc = pm8001_setup_msix(pm8001_ha); + if (rc) { + pm8001_dbg(pm8001_ha, FAIL, + "pm8001_setup_irq failed [ret: %d]\n", rc); + return rc; + } + + if (pdev->msix_cap && pci_msi_enabled()) + return pm8001_request_msix(pm8001_ha); + } + + pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n"); +#endif + + /* initialize the INT-X interrupt */ + pm8001_ha->irq_vector[0].irq_id = 0; + pm8001_ha->irq_vector[0].drv_inst = pm8001_ha; + + return request_irq(pdev->irq, pm8001_interrupt_handler_intx, + IRQF_SHARED, pm8001_ha->name, + SHOST_TO_SAS_HA(pm8001_ha->shost)); +} + +/** + * 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 and hardware initialization should be + * done here, also, register interrupt. + */ +static int pm8001_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + unsigned int rc; + u32 pci_reg; + u8 i = 0; + struct pm8001_hba_info *pm8001_ha; + struct Scsi_Host *shost = NULL; + const struct pm8001_chip_info *chip; + struct sas_ha_struct *sha; + + dev_printk(KERN_INFO, &pdev->dev, + "pm80xx: 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]; + sha = kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL); + if (!sha) { + rc = -ENOMEM; + goto err_out_free_host; + } + SHOST_TO_SAS_HA(shost) = sha; + + 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)); + /* ent->driver variable is used to differentiate between controllers */ + pm8001_ha = pm8001_pci_alloc(pdev, ent, shost); + if (!pm8001_ha) { + rc = -ENOMEM; + goto err_out_free; + } + + PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); + rc = PM8001_CHIP_DISP->chip_init(pm8001_ha); + if (rc) { + pm8001_dbg(pm8001_ha, FAIL, + "chip_init failed [ret: %d]\n", rc); + goto err_out_ha_free; + } + + rc = pm8001_init_ccb_tag(pm8001_ha); + if (rc) + goto err_out_enable; + + + PM8001_CHIP_DISP->chip_post_init(pm8001_ha); + + if (pm8001_ha->number_of_intr > 1) { + shost->nr_hw_queues = pm8001_ha->number_of_intr - 1; + /* + * For now, ensure we're not sent too many commands by setting + * host_tagset. This is also required if we start using request + * tag. + */ + shost->host_tagset = 1; + } + + rc = scsi_add_host(shost, &pdev->dev); + if (rc) + goto err_out_ha_free; + + PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0); + if (pm8001_ha->chip_id != chip_8001) { + for (i = 1; i < pm8001_ha->number_of_intr; i++) + PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i); + /* setup thermal configuration. */ + pm80xx_set_thermal_config(pm8001_ha); + } + + rc = pm8001_init_sas_add(pm8001_ha); + if (rc) + goto err_out_shost; + /* phy setting support for motherboard controller */ + rc = pm8001_configure_phy_settings(pm8001_ha); + if (rc) + goto err_out_shost; + + pm8001_post_sas_ha_init(shost, chip); + rc = sas_register_ha(SHOST_TO_SAS_HA(shost)); + if (rc) { + pm8001_dbg(pm8001_ha, FAIL, + "sas_register_ha failed [ret: %d]\n", rc); + goto err_out_shost; + } + list_add_tail(&pm8001_ha->list, &hba_list); + pm8001_ha->flags = PM8001F_RUN_TIME; + 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(sha); +err_out_free_host: + scsi_host_put(shost); +err_out_regions: + pci_release_regions(pdev); +err_out_disable: + pci_disable_device(pdev); +err_out_enable: + return rc; +} + +/** + * pm8001_init_ccb_tag - allocate memory to CCB and tag. + * @pm8001_ha: our hba card information. + */ +static int pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha) +{ + struct Scsi_Host *shost = pm8001_ha->shost; + struct device *dev = pm8001_ha->dev; + u32 max_out_io, ccb_count; + int i; + + max_out_io = pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io; + ccb_count = min_t(int, PM8001_MAX_CCB, max_out_io); + + shost->can_queue = ccb_count - PM8001_RESERVE_SLOT; + + pm8001_ha->rsvd_tags = bitmap_zalloc(PM8001_RESERVE_SLOT, GFP_KERNEL); + if (!pm8001_ha->rsvd_tags) + goto err_out; + + /* Memory region for ccb_info*/ + pm8001_ha->ccb_count = ccb_count; + pm8001_ha->ccb_info = + kcalloc(ccb_count, sizeof(struct pm8001_ccb_info), GFP_KERNEL); + if (!pm8001_ha->ccb_info) { + pm8001_dbg(pm8001_ha, FAIL, + "Unable to allocate memory for ccb\n"); + goto err_out_noccb; + } + for (i = 0; i < ccb_count; i++) { + pm8001_ha->ccb_info[i].buf_prd = dma_alloc_coherent(dev, + sizeof(struct pm8001_prd) * PM8001_MAX_DMA_SG, + &pm8001_ha->ccb_info[i].ccb_dma_handle, + GFP_KERNEL); + if (!pm8001_ha->ccb_info[i].buf_prd) { + pm8001_dbg(pm8001_ha, FAIL, + "ccb prd memory allocation error\n"); + goto err_out; + } + pm8001_ha->ccb_info[i].task = NULL; + pm8001_ha->ccb_info[i].ccb_tag = PM8001_INVALID_TAG; + pm8001_ha->ccb_info[i].device = NULL; + } + + return 0; + +err_out_noccb: + kfree(pm8001_ha->devices); +err_out: + return -ENOMEM; +} + +static void pm8001_pci_remove(struct pci_dev *pdev) +{ + struct sas_ha_struct *sha = pci_get_drvdata(pdev); + struct pm8001_hba_info *pm8001_ha; + int i, j; + pm8001_ha = sha->lldd_ha; + sas_unregister_ha(sha); + sas_remove_host(pm8001_ha->shost); + list_del(&pm8001_ha->list); + PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF); + PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); + +#ifdef PM8001_USE_MSIX + for (i = 0; i < pm8001_ha->number_of_intr; i++) + synchronize_irq(pci_irq_vector(pdev, i)); + for (i = 0; i < pm8001_ha->number_of_intr; i++) + free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]); + pci_free_irq_vectors(pdev); +#else + free_irq(pm8001_ha->irq, sha); +#endif +#ifdef PM8001_USE_TASKLET + /* For non-msix and msix interrupts */ + if ((!pdev->msix_cap || !pci_msi_enabled()) || + (pm8001_ha->chip_id == chip_8001)) + tasklet_kill(&pm8001_ha->tasklet[0]); + else + for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) + tasklet_kill(&pm8001_ha->tasklet[j]); +#endif + scsi_host_put(pm8001_ha->shost); + + for (i = 0; i < pm8001_ha->ccb_count; i++) { + dma_free_coherent(&pm8001_ha->pdev->dev, + sizeof(struct pm8001_prd) * PM8001_MAX_DMA_SG, + pm8001_ha->ccb_info[i].buf_prd, + pm8001_ha->ccb_info[i].ccb_dma_handle); + } + kfree(pm8001_ha->ccb_info); + kfree(pm8001_ha->devices); + + 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 + * @dev: Device struct + * + * Return: 0 on success, anything else on error. + */ +static int __maybe_unused pm8001_pci_suspend(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct sas_ha_struct *sha = pci_get_drvdata(pdev); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + int i, j; + sas_suspend_ha(sha); + flush_workqueue(pm8001_wq); + scsi_block_requests(pm8001_ha->shost); + if (!pdev->pm_cap) { + dev_err(dev, " PCI PM not supported\n"); + return -ENODEV; + } + PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF); + PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); +#ifdef PM8001_USE_MSIX + for (i = 0; i < pm8001_ha->number_of_intr; i++) + synchronize_irq(pci_irq_vector(pdev, i)); + for (i = 0; i < pm8001_ha->number_of_intr; i++) + free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]); + pci_free_irq_vectors(pdev); +#else + free_irq(pm8001_ha->irq, sha); +#endif +#ifdef PM8001_USE_TASKLET + /* For non-msix and msix interrupts */ + if ((!pdev->msix_cap || !pci_msi_enabled()) || + (pm8001_ha->chip_id == chip_8001)) + tasklet_kill(&pm8001_ha->tasklet[0]); + else + for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) + tasklet_kill(&pm8001_ha->tasklet[j]); +#endif + pm8001_info(pm8001_ha, "pdev=0x%p, slot=%s, entering " + "suspended state\n", pdev, + pm8001_ha->name); + return 0; +} + +/** + * pm8001_pci_resume - power management resume main entry point + * @dev: Device struct + * + * Return: 0 on success, anything else on error. + */ +static int __maybe_unused pm8001_pci_resume(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct sas_ha_struct *sha = pci_get_drvdata(pdev); + struct pm8001_hba_info *pm8001_ha; + int rc; + u8 i = 0, j; + DECLARE_COMPLETION_ONSTACK(completion); + + pm8001_ha = sha->lldd_ha; + + pm8001_info(pm8001_ha, + "pdev=0x%p, slot=%s, resuming from previous operating state [D%d]\n", + pdev, pm8001_ha->name, pdev->current_state); + + rc = pci_go_44(pdev); + if (rc) + goto err_out_disable; + sas_prep_resume_ha(sha); + /* chip soft rst only for spc */ + if (pm8001_ha->chip_id == chip_8001) { + PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); + pm8001_dbg(pm8001_ha, INIT, "chip soft reset successful\n"); + } + rc = PM8001_CHIP_DISP->chip_init(pm8001_ha); + if (rc) + goto err_out_disable; + + /* disable all the interrupt bits */ + PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF); + + rc = pm8001_request_irq(pm8001_ha); + if (rc) + goto err_out_disable; +#ifdef PM8001_USE_TASKLET + /* Tasklet for non msi-x interrupt handler */ + if ((!pdev->msix_cap || !pci_msi_enabled()) || + (pm8001_ha->chip_id == chip_8001)) + tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet, + (unsigned long)&(pm8001_ha->irq_vector[0])); + else + for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) + tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet, + (unsigned long)&(pm8001_ha->irq_vector[j])); +#endif + PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0); + if (pm8001_ha->chip_id != chip_8001) { + for (i = 1; i < pm8001_ha->number_of_intr; i++) + PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i); + } + + /* Chip documentation for the 8070 and 8072 SPCv */ + /* states that a 500ms minimum delay is required */ + /* before issuing commands. Otherwise, the firmware */ + /* will enter an unrecoverable state. */ + + if (pm8001_ha->chip_id == chip_8070 || + pm8001_ha->chip_id == chip_8072) { + mdelay(500); + } + + /* Spin up the PHYs */ + + pm8001_ha->flags = PM8001F_RUN_TIME; + for (i = 0; i < pm8001_ha->chip->n_phy; i++) { + pm8001_ha->phy[i].enable_completion = &completion; + PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i); + wait_for_completion(&completion); + } + sas_resume_ha(sha); + return 0; + +err_out_disable: + scsi_remove_host(pm8001_ha->shost); + + return rc; +} + +/* update of pci device, vendor id and driver data with + * unique value for each of the controller + */ +static struct pci_device_id pm8001_pci_table[] = { + { PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 }, + { PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 }, + { PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 }, + { PCI_VDEVICE(ATTO, 0x0042), chip_8001 }, + /* Support for SPC/SPCv/SPCve controllers */ + { PCI_VDEVICE(ADAPTEC2, 0x8001), chip_8001 }, + { PCI_VDEVICE(PMC_Sierra, 0x8008), chip_8008 }, + { PCI_VDEVICE(ADAPTEC2, 0x8008), chip_8008 }, + { PCI_VDEVICE(PMC_Sierra, 0x8018), chip_8018 }, + { PCI_VDEVICE(ADAPTEC2, 0x8018), chip_8018 }, + { PCI_VDEVICE(PMC_Sierra, 0x8009), chip_8009 }, + { PCI_VDEVICE(ADAPTEC2, 0x8009), chip_8009 }, + { PCI_VDEVICE(PMC_Sierra, 0x8019), chip_8019 }, + { PCI_VDEVICE(ADAPTEC2, 0x8019), chip_8019 }, + { PCI_VDEVICE(PMC_Sierra, 0x8074), chip_8074 }, + { PCI_VDEVICE(ADAPTEC2, 0x8074), chip_8074 }, + { PCI_VDEVICE(PMC_Sierra, 0x8076), chip_8076 }, + { PCI_VDEVICE(ADAPTEC2, 0x8076), chip_8076 }, + { PCI_VDEVICE(PMC_Sierra, 0x8077), chip_8077 }, + { PCI_VDEVICE(ADAPTEC2, 0x8077), chip_8077 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8081, + PCI_VENDOR_ID_ADAPTEC2, 0x0400, 0, 0, chip_8001 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8081, + PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8001 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8088, + PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8008 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8088, + PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8008 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8089, + PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8009 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8089, + PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8009 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8088, + PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8018 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8088, + PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8018 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8089, + PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8019 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8089, + PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8019 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8074, + PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8074 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8076, + PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8076 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8077, + PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8077 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8074, + PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8074 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8076, + PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8076 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8077, + PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8077 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8076, + PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8076 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8077, + PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8077 }, + { PCI_VENDOR_ID_ADAPTEC2, 0x8074, + PCI_VENDOR_ID_ADAPTEC2, 0x0404, 0, 0, chip_8074 }, + { PCI_VENDOR_ID_ATTO, 0x8070, + PCI_VENDOR_ID_ATTO, 0x0070, 0, 0, chip_8070 }, + { PCI_VENDOR_ID_ATTO, 0x8070, + PCI_VENDOR_ID_ATTO, 0x0071, 0, 0, chip_8070 }, + { PCI_VENDOR_ID_ATTO, 0x8072, + PCI_VENDOR_ID_ATTO, 0x0072, 0, 0, chip_8072 }, + { PCI_VENDOR_ID_ATTO, 0x8072, + PCI_VENDOR_ID_ATTO, 0x0073, 0, 0, chip_8072 }, + { PCI_VENDOR_ID_ATTO, 0x8070, + PCI_VENDOR_ID_ATTO, 0x0080, 0, 0, chip_8070 }, + { PCI_VENDOR_ID_ATTO, 0x8072, + PCI_VENDOR_ID_ATTO, 0x0081, 0, 0, chip_8072 }, + { PCI_VENDOR_ID_ATTO, 0x8072, + PCI_VENDOR_ID_ATTO, 0x0082, 0, 0, chip_8072 }, + {} /* terminate list */ +}; + +static SIMPLE_DEV_PM_OPS(pm8001_pci_pm_ops, + pm8001_pci_suspend, + pm8001_pci_resume); + +static struct pci_driver pm8001_pci_driver = { + .name = DRV_NAME, + .id_table = pm8001_pci_table, + .probe = pm8001_pci_probe, + .remove = pm8001_pci_remove, + .driver.pm = &pm8001_pci_pm_ops, +}; + +/** + * pm8001_init - initialize scsi transport template + */ +static int __init pm8001_init(void) +{ + int rc = -ENOMEM; + + pm8001_wq = alloc_workqueue("pm80xx", 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_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>"); +MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>"); +MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>"); +MODULE_DESCRIPTION( + "PMC-Sierra PM8001/8006/8081/8088/8089/8074/8076/8077/8070/8072 " + "SAS/SATA controller driver"); +MODULE_VERSION(DRV_VERSION); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, pm8001_pci_table); + |