| /* | |
| * 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 */ | |