| /* |
| * Disk Array driver for HP Smart Array SAS controllers |
| * Copyright 2016 Microsemi Corporation |
| * Copyright 2014-2015 PMC-Sierra, Inc. |
| * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| * NON INFRINGEMENT. See the GNU General Public License for more details. |
| * |
| * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com |
| * |
| */ |
| #ifndef HPSA_H |
| #define HPSA_H |
| |
| #include <scsi/scsicam.h> |
| |
| #define IO_OK 0 |
| #define IO_ERROR 1 |
| |
| struct ctlr_info; |
| |
| struct access_method { |
| void (*submit_command)(struct ctlr_info *h, |
| struct CommandList *c); |
| void (*set_intr_mask)(struct ctlr_info *h, unsigned long val); |
| bool (*intr_pending)(struct ctlr_info *h); |
| unsigned long (*command_completed)(struct ctlr_info *h, u8 q); |
| }; |
| |
| /* for SAS hosts and SAS expanders */ |
| struct hpsa_sas_node { |
| struct device *parent_dev; |
| struct list_head port_list_head; |
| }; |
| |
| struct hpsa_sas_port { |
| struct list_head port_list_entry; |
| u64 sas_address; |
| struct sas_port *port; |
| int next_phy_index; |
| struct list_head phy_list_head; |
| struct hpsa_sas_node *parent_node; |
| struct sas_rphy *rphy; |
| }; |
| |
| struct hpsa_sas_phy { |
| struct list_head phy_list_entry; |
| struct sas_phy *phy; |
| struct hpsa_sas_port *parent_port; |
| bool added_to_port; |
| }; |
| |
| struct hpsa_scsi_dev_t { |
| unsigned int devtype; |
| int bus, target, lun; /* as presented to the OS */ |
| unsigned char scsi3addr[8]; /* as presented to the HW */ |
| u8 physical_device : 1; |
| u8 expose_device; |
| u8 removed : 1; /* device is marked for death */ |
| #define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0" |
| unsigned char device_id[16]; /* from inquiry pg. 0x83 */ |
| u64 sas_address; |
| unsigned char vendor[8]; /* bytes 8-15 of inquiry data */ |
| unsigned char model[16]; /* bytes 16-31 of inquiry data */ |
| unsigned char rev; /* byte 2 of inquiry data */ |
| unsigned char raid_level; /* from inquiry page 0xC1 */ |
| unsigned char volume_offline; /* discovered via TUR or VPD */ |
| u16 queue_depth; /* max queue_depth for this device */ |
| atomic_t reset_cmds_out; /* Count of commands to-be affected */ |
| atomic_t ioaccel_cmds_out; /* Only used for physical devices |
| * counts commands sent to physical |
| * device via "ioaccel" path. |
| */ |
| u32 ioaccel_handle; |
| u8 active_path_index; |
| u8 path_map; |
| u8 bay; |
| u8 box[8]; |
| u16 phys_connector[8]; |
| int offload_config; /* I/O accel RAID offload configured */ |
| int offload_enabled; /* I/O accel RAID offload enabled */ |
| int offload_to_be_enabled; |
| int hba_ioaccel_enabled; |
| int offload_to_mirror; /* Send next I/O accelerator RAID |
| * offload request to mirror drive |
| */ |
| struct raid_map_data raid_map; /* I/O accelerator RAID map */ |
| |
| /* |
| * Pointers from logical drive map indices to the phys drives that |
| * make those logical drives. Note, multiple logical drives may |
| * share physical drives. You can have for instance 5 physical |
| * drives with 3 logical drives each using those same 5 physical |
| * disks. We need these pointers for counting i/o's out to physical |
| * devices in order to honor physical device queue depth limits. |
| */ |
| struct hpsa_scsi_dev_t *phys_disk[RAID_MAP_MAX_ENTRIES]; |
| int nphysical_disks; |
| int supports_aborts; |
| struct hpsa_sas_port *sas_port; |
| int external; /* 1-from external array 0-not <0-unknown */ |
| }; |
| |
| struct reply_queue_buffer { |
| u64 *head; |
| size_t size; |
| u8 wraparound; |
| u32 current_entry; |
| dma_addr_t busaddr; |
| }; |
| |
| #pragma pack(1) |
| struct bmic_controller_parameters { |
| u8 led_flags; |
| u8 enable_command_list_verification; |
| u8 backed_out_write_drives; |
| u16 stripes_for_parity; |
| u8 parity_distribution_mode_flags; |
| u16 max_driver_requests; |
| u16 elevator_trend_count; |
| u8 disable_elevator; |
| u8 force_scan_complete; |
| u8 scsi_transfer_mode; |
| u8 force_narrow; |
| u8 rebuild_priority; |
| u8 expand_priority; |
| u8 host_sdb_asic_fix; |
| u8 pdpi_burst_from_host_disabled; |
| char software_name[64]; |
| char hardware_name[32]; |
| u8 bridge_revision; |
| u8 snapshot_priority; |
| u32 os_specific; |
| u8 post_prompt_timeout; |
| u8 automatic_drive_slamming; |
| u8 reserved1; |
| u8 nvram_flags; |
| u8 cache_nvram_flags; |
| u8 drive_config_flags; |
| u16 reserved2; |
| u8 temp_warning_level; |
| u8 temp_shutdown_level; |
| u8 temp_condition_reset; |
| u8 max_coalesce_commands; |
| u32 max_coalesce_delay; |
| u8 orca_password[4]; |
| u8 access_id[16]; |
| u8 reserved[356]; |
| }; |
| #pragma pack() |
| |
| struct ctlr_info { |
| int ctlr; |
| char devname[8]; |
| char *product_name; |
| struct pci_dev *pdev; |
| u32 board_id; |
| u64 sas_address; |
| void __iomem *vaddr; |
| unsigned long paddr; |
| int nr_cmds; /* Number of commands allowed on this controller */ |
| #define HPSA_CMDS_RESERVED_FOR_ABORTS 2 |
| #define HPSA_CMDS_RESERVED_FOR_DRIVER 1 |
| struct CfgTable __iomem *cfgtable; |
| int interrupts_enabled; |
| int max_commands; |
| atomic_t commands_outstanding; |
| # define PERF_MODE_INT 0 |
| # define DOORBELL_INT 1 |
| # define SIMPLE_MODE_INT 2 |
| # define MEMQ_MODE_INT 3 |
| unsigned int intr[MAX_REPLY_QUEUES]; |
| unsigned int msix_vector; |
| unsigned int msi_vector; |
| int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */ |
| struct access_method access; |
| |
| /* queue and queue Info */ |
| unsigned int Qdepth; |
| unsigned int maxSG; |
| spinlock_t lock; |
| int maxsgentries; |
| u8 max_cmd_sg_entries; |
| int chainsize; |
| struct SGDescriptor **cmd_sg_list; |
| struct ioaccel2_sg_element **ioaccel2_cmd_sg_list; |
| |
| /* pointers to command and error info pool */ |
| struct CommandList *cmd_pool; |
| dma_addr_t cmd_pool_dhandle; |
| struct io_accel1_cmd *ioaccel_cmd_pool; |
| dma_addr_t ioaccel_cmd_pool_dhandle; |
| struct io_accel2_cmd *ioaccel2_cmd_pool; |
| dma_addr_t ioaccel2_cmd_pool_dhandle; |
| struct ErrorInfo *errinfo_pool; |
| dma_addr_t errinfo_pool_dhandle; |
| unsigned long *cmd_pool_bits; |
| int scan_finished; |
| spinlock_t scan_lock; |
| wait_queue_head_t scan_wait_queue; |
| |
| struct Scsi_Host *scsi_host; |
| spinlock_t devlock; /* to protect hba[ctlr]->dev[]; */ |
| int ndevices; /* number of used elements in .dev[] array. */ |
| struct hpsa_scsi_dev_t *dev[HPSA_MAX_DEVICES]; |
| /* |
| * Performant mode tables. |
| */ |
| u32 trans_support; |
| u32 trans_offset; |
| struct TransTable_struct __iomem *transtable; |
| unsigned long transMethod; |
| |
| /* cap concurrent passthrus at some reasonable maximum */ |
| #define HPSA_MAX_CONCURRENT_PASSTHRUS (10) |
| atomic_t passthru_cmds_avail; |
| |
| /* |
| * Performant mode completion buffers |
| */ |
| size_t reply_queue_size; |
| struct reply_queue_buffer reply_queue[MAX_REPLY_QUEUES]; |
| u8 nreply_queues; |
| u32 *blockFetchTable; |
| u32 *ioaccel1_blockFetchTable; |
| u32 *ioaccel2_blockFetchTable; |
| u32 __iomem *ioaccel2_bft2_regs; |
| unsigned char *hba_inquiry_data; |
| u32 driver_support; |
| u32 fw_support; |
| int ioaccel_support; |
| int ioaccel_maxsg; |
| u64 last_intr_timestamp; |
| u32 last_heartbeat; |
| u64 last_heartbeat_timestamp; |
| u32 heartbeat_sample_interval; |
| atomic_t firmware_flash_in_progress; |
| u32 __percpu *lockup_detected; |
| struct delayed_work monitor_ctlr_work; |
| struct delayed_work rescan_ctlr_work; |
| int remove_in_progress; |
| /* Address of h->q[x] is passed to intr handler to know which queue */ |
| u8 q[MAX_REPLY_QUEUES]; |
| char intrname[MAX_REPLY_QUEUES][16]; /* "hpsa0-msix00" names */ |
| u32 TMFSupportFlags; /* cache what task mgmt funcs are supported. */ |
| #define HPSATMF_BITS_SUPPORTED (1 << 0) |
| #define HPSATMF_PHYS_LUN_RESET (1 << 1) |
| #define HPSATMF_PHYS_NEX_RESET (1 << 2) |
| #define HPSATMF_PHYS_TASK_ABORT (1 << 3) |
| #define HPSATMF_PHYS_TSET_ABORT (1 << 4) |
| #define HPSATMF_PHYS_CLEAR_ACA (1 << 5) |
| #define HPSATMF_PHYS_CLEAR_TSET (1 << 6) |
| #define HPSATMF_PHYS_QRY_TASK (1 << 7) |
| #define HPSATMF_PHYS_QRY_TSET (1 << 8) |
| #define HPSATMF_PHYS_QRY_ASYNC (1 << 9) |
| #define HPSATMF_IOACCEL_ENABLED (1 << 15) |
| #define HPSATMF_MASK_SUPPORTED (1 << 16) |
| #define HPSATMF_LOG_LUN_RESET (1 << 17) |
| #define HPSATMF_LOG_NEX_RESET (1 << 18) |
| #define HPSATMF_LOG_TASK_ABORT (1 << 19) |
| #define HPSATMF_LOG_TSET_ABORT (1 << 20) |
| #define HPSATMF_LOG_CLEAR_ACA (1 << 21) |
| #define HPSATMF_LOG_CLEAR_TSET (1 << 22) |
| #define HPSATMF_LOG_QRY_TASK (1 << 23) |
| #define HPSATMF_LOG_QRY_TSET (1 << 24) |
| #define HPSATMF_LOG_QRY_ASYNC (1 << 25) |
| u32 events; |
| #define CTLR_STATE_CHANGE_EVENT (1 << 0) |
| #define CTLR_ENCLOSURE_HOT_PLUG_EVENT (1 << 1) |
| #define CTLR_STATE_CHANGE_EVENT_PHYSICAL_DRV (1 << 4) |
| #define CTLR_STATE_CHANGE_EVENT_LOGICAL_DRV (1 << 5) |
| #define CTLR_STATE_CHANGE_EVENT_REDUNDANT_CNTRL (1 << 6) |
| #define CTLR_STATE_CHANGE_EVENT_AIO_ENABLED_DISABLED (1 << 30) |
| #define CTLR_STATE_CHANGE_EVENT_AIO_CONFIG_CHANGE (1 << 31) |
| |
| #define RESCAN_REQUIRED_EVENT_BITS \ |
| (CTLR_ENCLOSURE_HOT_PLUG_EVENT | \ |
| CTLR_STATE_CHANGE_EVENT_PHYSICAL_DRV | \ |
| CTLR_STATE_CHANGE_EVENT_LOGICAL_DRV | \ |
| CTLR_STATE_CHANGE_EVENT_AIO_ENABLED_DISABLED | \ |
| CTLR_STATE_CHANGE_EVENT_AIO_CONFIG_CHANGE) |
| spinlock_t offline_device_lock; |
| struct list_head offline_device_list; |
| int acciopath_status; |
| int drv_req_rescan; |
| int raid_offload_debug; |
| int discovery_polling; |
| struct ReportLUNdata *lastlogicals; |
| int needs_abort_tags_swizzled; |
| struct workqueue_struct *resubmit_wq; |
| struct workqueue_struct *rescan_ctlr_wq; |
| atomic_t abort_cmds_available; |
| wait_queue_head_t abort_cmd_wait_queue; |
| wait_queue_head_t event_sync_wait_queue; |
| struct mutex reset_mutex; |
| u8 reset_in_progress; |
| struct hpsa_sas_node *sas_host; |
| }; |
| |
| struct offline_device_entry { |
| unsigned char scsi3addr[8]; |
| struct list_head offline_list; |
| }; |
| |
| #define HPSA_ABORT_MSG 0 |
| #define HPSA_DEVICE_RESET_MSG 1 |
| #define HPSA_RESET_TYPE_CONTROLLER 0x00 |
| #define HPSA_RESET_TYPE_BUS 0x01 |
| #define HPSA_RESET_TYPE_LUN 0x04 |
| #define HPSA_PHYS_TARGET_RESET 0x99 /* not defined by cciss spec */ |
| #define HPSA_MSG_SEND_RETRY_LIMIT 10 |
| #define HPSA_MSG_SEND_RETRY_INTERVAL_MSECS (10000) |
| |
| /* Maximum time in seconds driver will wait for command completions |
| * when polling before giving up. |
| */ |
| #define HPSA_MAX_POLL_TIME_SECS (20) |
| |
| /* During SCSI error recovery, HPSA_TUR_RETRY_LIMIT defines |
| * how many times to retry TEST UNIT READY on a device |
| * while waiting for it to become ready before giving up. |
| * HPSA_MAX_WAIT_INTERVAL_SECS is the max wait interval |
| * between sending TURs while waiting for a device |
| * to become ready. |
| */ |
| #define HPSA_TUR_RETRY_LIMIT (20) |
| #define HPSA_MAX_WAIT_INTERVAL_SECS (30) |
| |
| /* HPSA_BOARD_READY_WAIT_SECS is how long to wait for a board |
| * to become ready, in seconds, before giving up on it. |
| * HPSA_BOARD_READY_POLL_INTERVAL_MSECS * is how long to wait |
| * between polling the board to see if it is ready, in |
| * milliseconds. HPSA_BOARD_READY_POLL_INTERVAL and |
| * HPSA_BOARD_READY_ITERATIONS are derived from those. |
| */ |
| #define HPSA_BOARD_READY_WAIT_SECS (120) |
| #define HPSA_BOARD_NOT_READY_WAIT_SECS (100) |
| #define HPSA_BOARD_READY_POLL_INTERVAL_MSECS (100) |
| #define HPSA_BOARD_READY_POLL_INTERVAL \ |
| ((HPSA_BOARD_READY_POLL_INTERVAL_MSECS * HZ) / 1000) |
| #define HPSA_BOARD_READY_ITERATIONS \ |
| ((HPSA_BOARD_READY_WAIT_SECS * 1000) / \ |
| HPSA_BOARD_READY_POLL_INTERVAL_MSECS) |
| #define HPSA_BOARD_NOT_READY_ITERATIONS \ |
| ((HPSA_BOARD_NOT_READY_WAIT_SECS * 1000) / \ |
| HPSA_BOARD_READY_POLL_INTERVAL_MSECS) |
| #define HPSA_POST_RESET_PAUSE_MSECS (3000) |
| #define HPSA_POST_RESET_NOOP_RETRIES (12) |
| |
| /* Defining the diffent access_menthods */ |
| /* |
| * Memory mapped FIFO interface (SMART 53xx cards) |
| */ |
| #define SA5_DOORBELL 0x20 |
| #define SA5_REQUEST_PORT_OFFSET 0x40 |
| #define SA5_REQUEST_PORT64_LO_OFFSET 0xC0 |
| #define SA5_REQUEST_PORT64_HI_OFFSET 0xC4 |
| #define SA5_REPLY_INTR_MASK_OFFSET 0x34 |
| #define SA5_REPLY_PORT_OFFSET 0x44 |
| #define SA5_INTR_STATUS 0x30 |
| #define SA5_SCRATCHPAD_OFFSET 0xB0 |
| |
| #define SA5_CTCFG_OFFSET 0xB4 |
| #define SA5_CTMEM_OFFSET 0xB8 |
| |
| #define SA5_INTR_OFF 0x08 |
| #define SA5B_INTR_OFF 0x04 |
| #define SA5_INTR_PENDING 0x08 |
| #define SA5B_INTR_PENDING 0x04 |
| #define FIFO_EMPTY 0xffffffff |
| #define HPSA_FIRMWARE_READY 0xffff0000 /* value in scratchpad register */ |
| |
| #define HPSA_ERROR_BIT 0x02 |
| |
| /* Performant mode flags */ |
| #define SA5_PERF_INTR_PENDING 0x04 |
| #define SA5_PERF_INTR_OFF 0x05 |
| #define SA5_OUTDB_STATUS_PERF_BIT 0x01 |
| #define SA5_OUTDB_CLEAR_PERF_BIT 0x01 |
| #define SA5_OUTDB_CLEAR 0xA0 |
| #define SA5_OUTDB_CLEAR_PERF_BIT 0x01 |
| #define SA5_OUTDB_STATUS 0x9C |
| |
| |
| #define HPSA_INTR_ON 1 |
| #define HPSA_INTR_OFF 0 |
| |
| /* |
| * Inbound Post Queue offsets for IO Accelerator Mode 2 |
| */ |
| #define IOACCEL2_INBOUND_POSTQ_32 0x48 |
| #define IOACCEL2_INBOUND_POSTQ_64_LOW 0xd0 |
| #define IOACCEL2_INBOUND_POSTQ_64_HI 0xd4 |
| |
| #define HPSA_PHYSICAL_DEVICE_BUS 0 |
| #define HPSA_RAID_VOLUME_BUS 1 |
| #define HPSA_EXTERNAL_RAID_VOLUME_BUS 2 |
| #define HPSA_HBA_BUS 0 |
| #define HPSA_LEGACY_HBA_BUS 3 |
| |
| /* |
| Send the command to the hardware |
| */ |
| static void SA5_submit_command(struct ctlr_info *h, |
| struct CommandList *c) |
| { |
| writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); |
| (void) readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); |
| } |
| |
| static void SA5_submit_command_no_read(struct ctlr_info *h, |
| struct CommandList *c) |
| { |
| writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); |
| } |
| |
| static void SA5_submit_command_ioaccel2(struct ctlr_info *h, |
| struct CommandList *c) |
| { |
| writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); |
| } |
| |
| /* |
| * This card is the opposite of the other cards. |
| * 0 turns interrupts on... |
| * 0x08 turns them off... |
| */ |
| static void SA5_intr_mask(struct ctlr_info *h, unsigned long val) |
| { |
| if (val) { /* Turn interrupts on */ |
| h->interrupts_enabled = 1; |
| writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| } else { /* Turn them off */ |
| h->interrupts_enabled = 0; |
| writel(SA5_INTR_OFF, |
| h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| } |
| } |
| |
| static void SA5_performant_intr_mask(struct ctlr_info *h, unsigned long val) |
| { |
| if (val) { /* turn on interrupts */ |
| h->interrupts_enabled = 1; |
| writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| } else { |
| h->interrupts_enabled = 0; |
| writel(SA5_PERF_INTR_OFF, |
| h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET); |
| } |
| } |
| |
| static unsigned long SA5_performant_completed(struct ctlr_info *h, u8 q) |
| { |
| struct reply_queue_buffer *rq = &h->reply_queue[q]; |
| unsigned long register_value = FIFO_EMPTY; |
| |
| /* msi auto clears the interrupt pending bit. */ |
| if (unlikely(!(h->msi_vector || h->msix_vector))) { |
| /* flush the controller write of the reply queue by reading |
| * outbound doorbell status register. |
| */ |
| (void) readl(h->vaddr + SA5_OUTDB_STATUS); |
| writel(SA5_OUTDB_CLEAR_PERF_BIT, h->vaddr + SA5_OUTDB_CLEAR); |
| /* Do a read in order to flush the write to the controller |
| * (as per spec.) |
| */ |
| (void) readl(h->vaddr + SA5_OUTDB_STATUS); |
| } |
| |
| if ((((u32) rq->head[rq->current_entry]) & 1) == rq->wraparound) { |
| register_value = rq->head[rq->current_entry]; |
| rq->current_entry++; |
| atomic_dec(&h->commands_outstanding); |
| } else { |
| register_value = FIFO_EMPTY; |
| } |
| /* Check for wraparound */ |
| if (rq->current_entry == h->max_commands) { |
| rq->current_entry = 0; |
| rq->wraparound ^= 1; |
| } |
| return register_value; |
| } |
| |
| /* |
| * returns value read from hardware. |
| * returns FIFO_EMPTY if there is nothing to read |
| */ |
| static unsigned long SA5_completed(struct ctlr_info *h, |
| __attribute__((unused)) u8 q) |
| { |
| unsigned long register_value |
| = readl(h->vaddr + SA5_REPLY_PORT_OFFSET); |
| |
| if (register_value != FIFO_EMPTY) |
| atomic_dec(&h->commands_outstanding); |
| |
| #ifdef HPSA_DEBUG |
| if (register_value != FIFO_EMPTY) |
| dev_dbg(&h->pdev->dev, "Read %lx back from board\n", |
| register_value); |
| else |
| dev_dbg(&h->pdev->dev, "FIFO Empty read\n"); |
| #endif |
| |
| return register_value; |
| } |
| /* |
| * Returns true if an interrupt is pending.. |
| */ |
| static bool SA5_intr_pending(struct ctlr_info *h) |
| { |
| unsigned long register_value = |
| readl(h->vaddr + SA5_INTR_STATUS); |
| return register_value & SA5_INTR_PENDING; |
| } |
| |
| static bool SA5_performant_intr_pending(struct ctlr_info *h) |
| { |
| unsigned long register_value = readl(h->vaddr + SA5_INTR_STATUS); |
| |
| if (!register_value) |
| return false; |
| |
| /* Read outbound doorbell to flush */ |
| register_value = readl(h->vaddr + SA5_OUTDB_STATUS); |
| return register_value & SA5_OUTDB_STATUS_PERF_BIT; |
| } |
| |
| #define SA5_IOACCEL_MODE1_INTR_STATUS_CMP_BIT 0x100 |
| |
| static bool SA5_ioaccel_mode1_intr_pending(struct ctlr_info *h) |
| { |
| unsigned long register_value = readl(h->vaddr + SA5_INTR_STATUS); |
| |
| return (register_value & SA5_IOACCEL_MODE1_INTR_STATUS_CMP_BIT) ? |
| true : false; |
| } |
| |
| #define IOACCEL_MODE1_REPLY_QUEUE_INDEX 0x1A0 |
| #define IOACCEL_MODE1_PRODUCER_INDEX 0x1B8 |
| #define IOACCEL_MODE1_CONSUMER_INDEX 0x1BC |
| #define IOACCEL_MODE1_REPLY_UNUSED 0xFFFFFFFFFFFFFFFFULL |
| |
| static unsigned long SA5_ioaccel_mode1_completed(struct ctlr_info *h, u8 q) |
| { |
| u64 register_value; |
| struct reply_queue_buffer *rq = &h->reply_queue[q]; |
| |
| BUG_ON(q >= h->nreply_queues); |
| |
| register_value = rq->head[rq->current_entry]; |
| if (register_value != IOACCEL_MODE1_REPLY_UNUSED) { |
| rq->head[rq->current_entry] = IOACCEL_MODE1_REPLY_UNUSED; |
| if (++rq->current_entry == rq->size) |
| rq->current_entry = 0; |
| /* |
| * @todo |
| * |
| * Don't really need to write the new index after each command, |
| * but with current driver design this is easiest. |
| */ |
| wmb(); |
| writel((q << 24) | rq->current_entry, h->vaddr + |
| IOACCEL_MODE1_CONSUMER_INDEX); |
| atomic_dec(&h->commands_outstanding); |
| } |
| return (unsigned long) register_value; |
| } |
| |
| static struct access_method SA5_access = { |
| SA5_submit_command, |
| SA5_intr_mask, |
| SA5_intr_pending, |
| SA5_completed, |
| }; |
| |
| static struct access_method SA5_ioaccel_mode1_access = { |
| SA5_submit_command, |
| SA5_performant_intr_mask, |
| SA5_ioaccel_mode1_intr_pending, |
| SA5_ioaccel_mode1_completed, |
| }; |
| |
| static struct access_method SA5_ioaccel_mode2_access = { |
| SA5_submit_command_ioaccel2, |
| SA5_performant_intr_mask, |
| SA5_performant_intr_pending, |
| SA5_performant_completed, |
| }; |
| |
| static struct access_method SA5_performant_access = { |
| SA5_submit_command, |
| SA5_performant_intr_mask, |
| SA5_performant_intr_pending, |
| SA5_performant_completed, |
| }; |
| |
| static struct access_method SA5_performant_access_no_read = { |
| SA5_submit_command_no_read, |
| SA5_performant_intr_mask, |
| SA5_performant_intr_pending, |
| SA5_performant_completed, |
| }; |
| |
| struct board_type { |
| u32 board_id; |
| char *product_name; |
| struct access_method *access; |
| }; |
| |
| #endif /* HPSA_H */ |
| |