diff options
| author | James Smart <James.Smart@Emulex.Com> | 2008-06-15 06:52:53 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-12 17:22:28 +0400 |
| commit | 5e9d9b8276980fc5dfa88ce34f6ec88ce3026232 (patch) | |
| tree | 30b495edab629068f929a32f88a66ad705687f34 /drivers/scsi/lpfc/lpfc.h | |
| parent | 0d2b6b83030d6a88cbf7db57f84f2daf0e0b251b (diff) | |
| download | linux-5e9d9b8276980fc5dfa88ce34f6ec88ce3026232.tar.xz | |
[SCSI] lpfc 8.2.7 : Rework the worker thread
Rework of the worker thread to make it more efficient.
Make a finer-grain notfication of pending work so less time is
spent checking conditions. Also made other general cleanups.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index ec0b0f6e5e1a..e3e5b540e36c 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -59,6 +59,9 @@ struct lpfc_sli2_slim; #define MAX_HBAEVT 32 +/* lpfc wait event data ready flag */ +#define LPFC_DATA_READY (1<<0) + enum lpfc_polling_flags { ENABLE_FCP_RING_POLLING = 0x1, DISABLE_FCP_RING_INT = 0x2 @@ -425,9 +428,6 @@ struct lpfc_hba { uint16_t pci_cfg_value; - uint8_t work_found; -#define LPFC_MAX_WORKER_ITERATION 4 - uint8_t fc_linkspeed; /* Link speed after last READ_LA */ uint32_t fc_eventTag; /* event tag for link attention */ @@ -489,8 +489,9 @@ struct lpfc_hba { uint32_t work_hs; /* HS stored in case of ERRAT */ uint32_t work_status[2]; /* Extra status from SLIM */ - wait_queue_head_t *work_wait; + wait_queue_head_t work_waitq; struct task_struct *worker_thread; + long data_flags; uint32_t hbq_in_use; /* HBQs in use flag */ struct list_head hbqbuf_in_list; /* in-fly hbq buffer list */ @@ -637,6 +638,17 @@ lpfc_is_link_up(struct lpfc_hba *phba) phba->link_state == LPFC_HBA_READY; } +static inline void +lpfc_worker_wake_up(struct lpfc_hba *phba) +{ + /* Set the lpfc data pending flag */ + set_bit(LPFC_DATA_READY, &phba->data_flags); + + /* Wake up worker thread */ + wake_up(&phba->work_waitq); + return; +} + #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */ #define FC_REG_TEMPERATURE_EVENT 0x20 /* Register for temperature event */ |