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[SCSI] bfa: Introduce IOC event notification mechanism.

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Introduced a generic event notification callback function that
receives IOC_ENABLED, IOC_DISABLED, IOC_FAILED events and notifies the
modules registered for these events.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Krishna Gudipati
2011-06-13 15:42:10 -07:00
committed by James Bottomley
parent 85ce928dbb
commit d37779f8d9
6 changed files with 87 additions and 57 deletions
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24
drivers/scsi/bfa/bfa_ioc.h
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@@ -197,18 +197,26 @@ struct bfa_ioc_cbfn_s {
};
/*
* Heartbeat failure notification queue element.
* IOC event notification mechanism.
*/
struct bfa_ioc_hbfail_notify_s {
enum bfa_ioc_event_e {
BFA_IOC_E_ENABLED = 1,
BFA_IOC_E_DISABLED = 2,
BFA_IOC_E_FAILED = 3,
};
typedef void (*bfa_ioc_notify_cbfn_t)(void *, enum bfa_ioc_event_e);
struct bfa_ioc_notify_s {
struct list_head qe;
bfa_ioc_hbfail_cbfn_t cbfn;
bfa_ioc_notify_cbfn_t cbfn;
void *cbarg;
};
/*
* Initialize a heartbeat failure notification structure
* Initialize a IOC event notification structure
*/
#define bfa_ioc_hbfail_init(__notify, __cbfn, __cbarg) do { \
#define bfa_ioc_notify_init(__notify, __cbfn, __cbarg) do { \
(__notify)->cbfn = (__cbfn); \
(__notify)->cbarg = (__cbarg); \
} while (0)
@@ -229,11 +237,11 @@ struct bfa_ioc_s {
struct bfa_timer_s sem_timer;
struct bfa_timer_s hb_timer;
u32 hb_count;
struct list_head hb_notify_q;
struct list_head notify_q;
void *dbg_fwsave;
int dbg_fwsave_len;
bfa_boolean_t dbg_fwsave_once;
enum bfi_mclass ioc_mc;
enum bfi_pcifn_class clscode;
struct bfa_ioc_regs_s ioc_regs;
struct bfa_trc_mod_s *trcmod;
struct bfa_ioc_drv_stats_s stats;
@@ -334,7 +342,7 @@ void bfa_ioc_attach(struct bfa_ioc_s *ioc, void *bfa,
void bfa_ioc_auto_recover(bfa_boolean_t auto_recover);
void bfa_ioc_detach(struct bfa_ioc_s *ioc);
void bfa_ioc_pci_init(struct bfa_ioc_s *ioc, struct bfa_pcidev_s *pcidev,
enum bfi_mclass mc);
enum bfi_pcifn_class clscode);
void bfa_ioc_mem_claim(struct bfa_ioc_s *ioc, u8 *dm_kva, u64 dm_pa);
void bfa_ioc_enable(struct bfa_ioc_s *ioc);
void bfa_ioc_disable(struct bfa_ioc_s *ioc);