Commit f7c39101 authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by James Bottomley
Browse files

[SCSI] hpsa: factor out hpsa_enable_scsi_prefetch


Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 76c46e49
......@@ -3384,6 +3384,18 @@ static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
return true;
}
/* Need to enable prefetch in the SCSI core for 6400 in x86 */
static inline void hpsa_enable_scsi_prefetch(struct ctlr_info *h)
{
#ifdef CONFIG_X86
u32 prefetch;
prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
prefetch |= 0x100;
writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
#endif
}
static int __devinit hpsa_pci_init(struct ctlr_info *h)
{
int i, prod_index, err;
......@@ -3431,15 +3443,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
err = -ENODEV;
goto err_out_free_res;
}
#ifdef CONFIG_X86
{
/* Need to enable prefetch in the SCSI core for 6400 in x86 */
u32 prefetch;
prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
prefetch |= 0x100;
writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
}
#endif
hpsa_enable_scsi_prefetch(h);
/* Disabling DMA prefetch for the P600
* An ASIC bug may result in a prefetch beyond
......
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