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[SCSI] hpsa: factor out hpsa_enter_performant_mode 

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Stephen M. Cameron 2010-05-27 15:14:19 -05:00 committed by James Bottomley
parent ec18d2abad
commit 6c311b5725
1 changed files with 30 additions and 24 deletions
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54
drivers/scsi/hpsa.c
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@ -3808,36 +3808,16 @@ static void calc_bucket_map(int bucket[], int num_buckets,
}
}
static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h)
{
u32 trans_support;
int i;
unsigned long register_value;
int bft[8] = {5, 6, 8, 10, 12, 20, 28, 35}; /* for scatter/gathers */
/* 5 = 1 s/g entry or 4k
* 6 = 2 s/g entry or 8k
* 8 = 4 s/g entry or 16k
* 10 = 6 s/g entry or 24k
*/
int bft[8] = {5, 6, 8, 10, 12, 20, 28, 35}; /* for scatter/gathers */
int i = 0;
unsigned long register_value;
trans_support = readl(&(h->cfgtable->TransportSupport));
if (!(trans_support & PERFORMANT_MODE))
return;
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
h->max_sg_entries = 32;
/* Performant mode ring buffer and supporting data structures */
h->reply_pool_size = h->max_commands * sizeof(u64);
h->reply_pool = pci_alloc_consistent(h->pdev, h->reply_pool_size,
&(h->reply_pool_dhandle));
/* Need a block fetch table for performant mode */
h->blockFetchTable = kmalloc(((h->max_sg_entries+1) *
sizeof(u32)), GFP_KERNEL);
if ((h->reply_pool == NULL)
|| (h->blockFetchTable == NULL))
goto clean_up;
h->reply_pool_wraparound = 1; /* spec: init to 1 */
@ -3867,6 +3847,32 @@ static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
" performant mode\n");
return;
}
}
static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
{
u32 trans_support;
trans_support = readl(&(h->cfgtable->TransportSupport));
if (!(trans_support & PERFORMANT_MODE))
return;
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
h->max_sg_entries = 32;
/* Performant mode ring buffer and supporting data structures */
h->reply_pool_size = h->max_commands * sizeof(u64);
h->reply_pool = pci_alloc_consistent(h->pdev, h->reply_pool_size,
&(h->reply_pool_dhandle));
/* Need a block fetch table for performant mode */
h->blockFetchTable = kmalloc(((h->max_sg_entries+1) *
sizeof(u32)), GFP_KERNEL);
if ((h->reply_pool == NULL)
|| (h->blockFetchTable == NULL))
goto clean_up;
hpsa_enter_performant_mode(h);
/* Change the access methods to the performant access methods */
h->access = SA5_performant_access;