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| author | Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2010-07-19 13:46:01 -0500 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-08-07 18:52:11 +0200 |
| commit | 0f8a6a1e7b7162a51daee7df28f1b898da1a4165 (patch) | |
| tree | dccfec7d8d744e17d1d9a21e7be63c75de33e7a1 /drivers | |
| parent | fe3b7527dbf1e717ccb3492bb2d84481ca7be6f9 (diff) | |
| download | linux-0f8a6a1e7b7162a51daee7df28f1b898da1a4165.tar.gz | |
cciss: factor out cciss_wait_for_mode_change_ack()
cciss: factor out cciss_wait_for_mode_change_ack() Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/cciss.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 37bc091041a0..ee7cfde8a145 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -3816,9 +3816,22 @@ static void calc_bucket_map(int bucket[], int num_buckets, } } +static void __devinit cciss_wait_for_mode_change_ack(ctlr_info_t *h) +{ + int i; + + /* under certain very rare conditions, this can take awhile. + * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right + * as we enter this code.) */ + for (i = 0; i < MAX_CONFIG_WAIT; i++) { + if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq)) + break; + msleep(10); + } +} + static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h) { - int l = 0; __u32 trans_support; __u32 trans_offset; /* @@ -3895,17 +3908,7 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h) h->transMethod = CFGTBL_Trans_Performant; writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); - /* under certain very rare conditions, this can take awhile. - * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right - * as we enter this code.) */ - for (l = 0; l < MAX_CONFIG_WAIT; l++) { - register_value = readl(h->vaddr + SA5_DOORBELL); - if (!(register_value & CFGTBL_ChangeReq)) - break; - /* delay and try again */ - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(10); - } + cciss_wait_for_mode_change_ack(h); register_value = readl(&(h->cfgtable->TransportActive)); if (!(register_value & CFGTBL_Trans_Performant)) { printk(KERN_WARNING "cciss: unable to get board into" |