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SubjectRe: [PATCH] ahci: add a boot option to enable promise ahci
On 09/23/2012 10:34 PM, Tony Hung - PTT 洪瑞嶸 wrote:
> linux-3.2.0/drivers/ata/ahci.c: In function 'hptiop_host_request_callback':
>
> Use min_t(size_t, ...) to fix.
>
> Signed-off-by: Tony Hung <tony.hung@tw.promise.com>
> ---
>
> diff --git a/linux-3.2.0/drivers/ata/ahci.c b/linux-3.2.0/drivers/ata/ahci.c
> --- a/linux-3.2.0/drivers/ata/ahci.c 2012-08-29 13:40:26.046851693 +0800
> +++ b/linux-3.2.0/drivers/ata/ahci.c 2012-08-30 17:23:10.207838960 +0800
> @@ -430,6 +430,9 @@ static int marvell_enable = 1;
> module_param(marvell_enable, int, 0644);
> MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
>
> +static int promise_enable;
> +module_param(promise_enable, int, 0644);
> +MODULE_PARM_DESC(promise_enable, "Promise SATA via AHCI (1 = enabled)");
>
> static void ahci_pci_save_initial_config(struct pci_dev *pdev,
> struct ahci_host_priv *hpriv)
> @@ -1049,6 +1052,16 @@ static int ahci_init_one(struct pci_dev
> if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
> return -ENODEV;
>
> + /*
> + * In RAID mode, Promise software RAID need to replace
> + * original AHCI module, but if AHCI driver build-in kernel,
> + * Promise AHCI module need a boot option to disable it
> + */
> + if (promise_enable &&
> + ((pdev->class >> 8) == PCI_CLASS_STORAGE_RAID) &&
> + (pdev->vendor == PCI_VENDOR_ID_ATI ||
> + pdev->vendor == PCI_VENDOR_ID_AMD))
> + return -ENODEV;

We need the patch for the Promise Software RAID driver, to accept this...

Jeff




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