提交 f7c39101 编写于 作者: S Stephen M. Cameron 提交者: James Bottomley

[SCSI] hpsa: factor out hpsa_enable_scsi_prefetch

Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
上级 76c46e49
无相关合并请求
......@@ -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
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册
反馈
建议
客服 返回
顶部