diff options
Diffstat (limited to 'drivers/block/mtip32xx/mtip32xx.h')
| -rw-r--r-- | drivers/block/mtip32xx/mtip32xx.h | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index 17be4f444e7d..933192abe178 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -47,11 +47,11 @@ /* ftl rebuild */ #define MTIP_FTL_REBUILD_OFFSET 142 -#define MTIP_FTL_REBUILD_MAGIC 0xed51 +#define MTIP_FTL_REBUILD_MAGIC 0xED51 #define MTIP_FTL_REBUILD_TIMEOUT_MS 2400000 /* Macro to extract the tag bit number from a tag value. */ -#define MTIP_TAG_BIT(tag) (tag & 0x1f) +#define MTIP_TAG_BIT(tag) (tag & 0x1F) /* * Macro to extract the tag index from a tag value. The index @@ -81,7 +81,7 @@ /* Driver name and version strings */ #define MTIP_DRV_NAME "mtip32xx" -#define MTIP_DRV_VERSION "1.2.6os2" +#define MTIP_DRV_VERSION "1.2.6os3" /* Maximum number of minor device numbers per device. */ #define MTIP_MAX_MINORS 16 @@ -114,6 +114,15 @@ #define dbg_printk(format, arg...) #endif +#define __force_bit2int (unsigned int __force) + +/* below are bit numbers in 'flags' defined in mtip_port */ +#define MTIP_FLAG_IC_ACTIVE_BIT 0 +#define MTIP_FLAG_EH_ACTIVE_BIT 1 +#define MTIP_FLAG_SVC_THD_ACTIVE_BIT 2 +#define MTIP_FLAG_ISSUE_CMDS_BIT 4 +#define MTIP_FLAG_SVC_THD_SHOULD_STOP_BIT 8 + /* Register Frame Information Structure (FIS), host to device. */ struct host_to_dev_fis { /* @@ -262,7 +271,7 @@ struct mtip_cmd { unsigned long comp_time; /* command completion time, in jiffies */ - atomic_t active; /* declares if this command sent to the drive. */ + atomic_t active; /* declares if this command sent to the drive. */ }; /* Structure used to describe a port. */ @@ -278,7 +287,7 @@ struct mtip_port { void __iomem *mmio; /* Array of pointers to the memory mapped s_active registers. */ void __iomem *s_active[MTIP_MAX_SLOT_GROUPS]; - /* Array of pointers to the memory mapped completed registers. */ + /* Array of pointers to the memory mapped completed registers. */ void __iomem *completed[MTIP_MAX_SLOT_GROUPS]; /* Array of pointers to the memory mapped Command Issue registers. */ void __iomem *cmd_issue[MTIP_MAX_SLOT_GROUPS]; @@ -340,13 +349,23 @@ struct mtip_port { */ unsigned long allocated[SLOTBITS_IN_LONGS]; /* + * used to queue commands when an internal command is in progress + * or error handling is active + */ + unsigned long cmds_to_issue[SLOTBITS_IN_LONGS]; + /* * Array of command slots. Structure includes pointers to the * command header and command table, and completion function and data * pointers. */ struct mtip_cmd commands[MTIP_MAX_COMMAND_SLOTS]; - /* Non-zero if an internal command is in progress. */ - int internal_cmd_in_progress; + /* Used by mtip_service_thread to wait for an event */ + wait_queue_head_t svc_wait; + /* + * indicates the state of the port. Also, helps the service thread + * to determine its action on wake up. + */ + unsigned long flags; /* * Timer used to complete commands that have been active for too long. */ @@ -372,18 +391,11 @@ struct driver_data { int instance; /* Instance number. First device probed is 0, ... */ - int protocol; /* FIXME: Protocol ops array index. */ - struct gendisk *disk; /* Pointer to our gendisk structure. */ struct pci_dev *pdev; /* Pointer to the PCI device structure. */ struct request_queue *queue; /* Our request queue. */ - /* - * Semaphore used to lock out read/write commands during the - * execution of an internal command. - */ - struct rw_semaphore internal_sem; struct mtip_port *port; /* Pointer to the port data structure. */ @@ -403,6 +415,8 @@ struct driver_data { atomic_t resumeflag; /* Atomic variable to track suspend/resume */ atomic_t eh_active; /* Flag for error handling tracking */ + + struct task_struct *mtip_svc_handler; /* task_struct of svc thd */ }; #endif |