diff options
Diffstat (limited to 'drivers/scsi/fnic/fnic.h')
| -rw-r--r-- | drivers/scsi/fnic/fnic.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h index 95a5ba29320..63b35c8e40b 100644 --- a/drivers/scsi/fnic/fnic.h +++ b/drivers/scsi/fnic/fnic.h @@ -56,6 +56,19 @@ #define FNIC_NO_TAG -1 /* + * Command flags to identify the type of command and for other future + * use. + */ +#define FNIC_NO_FLAGS 0 +#define FNIC_CDB_REQ BIT(1) /* All IOs with a valid CDB */ +#define FNIC_BLOCKING_REQ BIT(2) /* All blocking Requests */ +#define FNIC_DEVICE_RESET BIT(3) /* Device reset request */ +#define FNIC_DEV_RST_PENDING BIT(4) /* Device reset pending */ +#define FNIC_DEV_RST_TIMED_OUT BIT(5) /* Device reset timed out */ +#define FNIC_DEV_RST_TERM_ISSUED BIT(6) /* Device reset terminate */ +#define FNIC_DEV_RST_DONE BIT(7) /* Device reset done */ + +/* * Usage of the scsi_cmnd scratchpad. * These fields are locked by the hashed io_req_lock. */ @@ -64,6 +77,7 @@ #define CMD_ABTS_STATUS(Cmnd) ((Cmnd)->SCp.Message) #define CMD_LR_STATUS(Cmnd) ((Cmnd)->SCp.have_data_in) #define CMD_TAG(Cmnd) ((Cmnd)->SCp.sent_command) +#define CMD_FLAGS(Cmnd) ((Cmnd)->SCp.Status) #define FCPIO_INVALID_CODE 0x100 /* hdr_status value unused by firmware */ @@ -71,9 +85,28 @@ #define FNIC_HOST_RESET_TIMEOUT 10000 /* mSec */ #define FNIC_RMDEVICE_TIMEOUT 1000 /* mSec */ #define FNIC_HOST_RESET_SETTLE_TIME 30 /* Sec */ +#define FNIC_ABT_TERM_DELAY_TIMEOUT 500 /* mSec */ #define FNIC_MAX_FCP_TARGET 256 +/** + * state_flags to identify host state along along with fnic's state + **/ +#define __FNIC_FLAGS_FWRESET BIT(0) /* fwreset in progress */ +#define __FNIC_FLAGS_BLOCK_IO BIT(1) /* IOs are blocked */ + +#define FNIC_FLAGS_NONE (0) +#define FNIC_FLAGS_FWRESET (__FNIC_FLAGS_FWRESET | \ + __FNIC_FLAGS_BLOCK_IO) + +#define FNIC_FLAGS_IO_BLOCKED (__FNIC_FLAGS_BLOCK_IO) + +#define fnic_set_state_flags(fnicp, st_flags) \ + __fnic_set_state_flags(fnicp, st_flags, 0) + +#define fnic_clear_state_flags(fnicp, st_flags) \ + __fnic_set_state_flags(fnicp, st_flags, 1) + extern unsigned int fnic_log_level; #define FNIC_MAIN_LOGGING 0x01 @@ -170,6 +203,9 @@ struct fnic { struct completion *remove_wait; /* device remove thread blocks */ + atomic_t in_flight; /* io counter */ + u32 _reserved; /* fill hole */ + unsigned long state_flags; /* protected by host lock */ enum fnic_state state; spinlock_t fnic_lock; @@ -267,4 +303,10 @@ const char *fnic_state_to_str(unsigned int state); void fnic_log_q_error(struct fnic *fnic); void fnic_handle_link_event(struct fnic *fnic); +static inline int +fnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags) +{ + return ((fnic->state_flags & st_flags) == st_flags); +} +void __fnic_set_state_flags(struct fnic *, unsigned long, unsigned long); #endif /* _FNIC_H_ */ |