ahci: remove duplicated PCI device IDs

Intel devices 0x2822, 0x2823, 0x2826 and 0x2827 are already on the list
as Lewisburg AHCI/RAID.  They use same configuration except 0x2822 which
has board_ahci_nosntf (for ICH8).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

---

Not tested.
---
 drivers/ata/ahci.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

On 2021/09/17 19:24, Krzysztof Kozlowski wrote:
> Intel devices 0x2822, 0x2823, 0x2826 and 0x2827 are already on the list
> as Lewisburg AHCI/RAID.  They use same configuration except 0x2822 which
> has board_ahci_nosntf (for ICH8).
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
> 
> ---
> 
> Not tested.

I cannot test this either. I do not have this hardware. No chance of getting
this tested by someone ?

Changes for 0x2823, 0x2826 and 0x2827 seem OK, but 0x2822 is weird.
Since it is replicated, I think that the second entry was in fact never used as
the first one would be a hit before the second. So shouldn't we keep the first
entry with board_ahci_nosntf and remove the second one with board_ahci ?

> ---
>  drivers/ata/ahci.c | 10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
> index 186cbf90c8ea..5f257064fcd8 100644
> --- a/drivers/ata/ahci.c
> +++ b/drivers/ata/ahci.c
> @@ -258,7 +258,6 @@ static const struct pci_device_id ahci_pci_tbl[] = {
>  	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
>  	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
>  	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
> -	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
>  	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
>  	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
>  	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
> @@ -316,7 +315,6 @@ static const struct pci_device_id ahci_pci_tbl[] = {
>  	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
>  	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
>  	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
> -	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
>  	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
>  	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
>  	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_mobile }, /* Panther M AHCI */
> @@ -358,8 +356,6 @@ static const struct pci_device_id ahci_pci_tbl[] = {
>  	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
>  	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
>  	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
> -	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
> -	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
>  	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
>  	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
>  	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
> @@ -395,9 +391,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
>  	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_mobile }, /* Sunrise M RAID */
>  	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
>  	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
> -	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/
> -	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
> -	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/
> +	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg/Lewisburg AHCI*/
> +	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG/Lewisburg RAID*/
> +	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg/Lewisburg RAID*/
>  	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
>  	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
>  	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
>

On 17/09/2021 13:21, Damien Le Moal wrote:
> On 2021/09/17 19:24, Krzysztof Kozlowski wrote:
>> Intel devices 0x2822, 0x2823, 0x2826 and 0x2827 are already on the list
>> as Lewisburg AHCI/RAID.  They use same configuration except 0x2822 which
>> has board_ahci_nosntf (for ICH8).
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
>>
>> ---
>>
>> Not tested.
> 
> I cannot test this either. I do not have this hardware. No chance of getting
> this tested by someone ?
> 
> Changes for 0x2823, 0x2826 and 0x2827 seem OK, but 0x2822 is weird.
> Since it is replicated, I think that the second entry was in fact never used as
> the first one would be a hit before the second. So shouldn't we keep the first
> entry with board_ahci_nosntf and remove the second one with board_ahci ?

The second 0x2822 entry was added by Alexandra Yates
<alexandra.yates@linux.intel.com>.

However first entry was added with much bigger explanation by Shaohua Li
<shaohua.li@intel.com>, where he/she tested it.

Indeed it points to using board_ahci_nosntf.

Best regards,
Krzysztof