Patchwork [v3] ata: Fix DVD not dectected at some Haswell platforms

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Submitter Youquan Song
Date Feb. 18, 2013, 4 p.m.
Message ID <1361203255-1670-1-git-send-email-youquan.song@intel.com>
Download mbox | patch
Permalink /patch/221141/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Youquan Song - Feb. 18, 2013, 4 p.m.
There is a quirk patch 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d 
"ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge
 chipsets(v2)" fixing the 4 ports IDE controller 32bit PIO mode. 

We've hit a problem with DVD not recognized on Haswell Desktop platform which
includes Lynx Point 2-port SATA controller.

This quirk patch disables 32bit PIO on this controller in IDE mode.

v2: Change spelling error in statememnt pointed by Sergei Shtylyov.
v3: Change comment statememnt and spliting line over 80 characters pointed by
    Libor Pechacek and also rebase the patch against 3.8-rc7 kernel.

Tested-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Youquan Song <youquan.song@intel.com>
Cc: stable@vger.kernel.org
---
 drivers/ata/ata_piix.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)
Borislav Petkov - March 5, 2013, 10:25 a.m.
On Tue, Mar 05, 2013 at 09:21:14AM -0500, Youquan Song wrote:
> Hi Maintainer,
> 
> Can you take the patch which is needed by some new platforms?

I think you've got the wrong guy. Here's how you can find out who the
maintainer is:

So your patch is against drivers/ata/ata_piix.c. So you do:

$ ./scripts/get_maintainer.pl -f drivers/ata/ata_piix.c
Jeff Garzik <jgarzik@pobox.com> (supporter:SERIAL ATA (SATA)...)
linux-ide@vger.kernel.org (open list:SERIAL ATA (SATA)...)
linux-kernel@vger.kernel.org (open list)

And this is the CC list you can use to send the patch to.

HTH.
Youquan Song - March 5, 2013, 2:21 p.m.
Hi Maintainer,

Can you take the patch which is needed by some new platforms?

Thanks
-Youquan

On Mon, Feb 18, 2013 at 11:00:55AM -0500, Youquan Song wrote:
> There is a quirk patch 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d 
> "ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge
>  chipsets(v2)" fixing the 4 ports IDE controller 32bit PIO mode. 
> 
> We've hit a problem with DVD not recognized on Haswell Desktop platform which
> includes Lynx Point 2-port SATA controller.
> 
> This quirk patch disables 32bit PIO on this controller in IDE mode.
> 
> v2: Change spelling error in statememnt pointed by Sergei Shtylyov.
> v3: Change comment statememnt and spliting line over 80 characters pointed by
>     Libor Pechacek and also rebase the patch against 3.8-rc7 kernel.
> 
> Tested-by: Lee, Chun-Yi <jlee@suse.com>
> Signed-off-by: Youquan Song <youquan.song@intel.com>
> Cc: stable@vger.kernel.org
> ---
>  drivers/ata/ata_piix.c |   14 +++++++++++++-
>  1 files changed, 13 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
> index 174eca6..4aab550 100644
> --- a/drivers/ata/ata_piix.c
> +++ b/drivers/ata/ata_piix.c
> @@ -150,6 +150,7 @@ enum piix_controller_ids {
>  	tolapai_sata,
>  	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
>  	ich8_sata_snb,
> +	ich8_2port_sata_snb,
>  };
>  
>  struct piix_map_db {
> @@ -304,7 +305,7 @@ static const struct pci_device_id piix_pci_tbl[] = {
>  	/* SATA Controller IDE (Lynx Point) */
>  	{ 0x8086, 0x8c01, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
>  	/* SATA Controller IDE (Lynx Point) */
> -	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
> +	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb },
>  	/* SATA Controller IDE (Lynx Point) */
>  	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
>  	/* SATA Controller IDE (Lynx Point-LP) */
> @@ -422,6 +423,7 @@ static const struct piix_map_db *piix_map_db_table[] = {
>  	[ich8m_apple_sata]	= &ich8m_apple_map_db,
>  	[tolapai_sata]		= &tolapai_map_db,
>  	[ich8_sata_snb]		= &ich8_map_db,
> +	[ich8_2port_sata_snb]	= &ich8_2port_map_db,
>  };
>  
>  static struct pci_bits piix_enable_bits[] = {
> @@ -1225,6 +1227,16 @@ static struct ata_port_info piix_port_info[] = {
>  		.udma_mask	= ATA_UDMA6,
>  		.port_ops	= &piix_sata_ops,
>  	},
> +
> +	[ich8_2port_sata_snb] =
> +	{
> +		.flags		= PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR
> +					| PIIX_FLAG_PIO16,
> +		.pio_mask	= ATA_PIO4,
> +		.mwdma_mask	= ATA_MWDMA2,
> +		.udma_mask	= ATA_UDMA6,
> +		.port_ops	= &piix_sata_ops,
> +	},
>  };
>  
>  #define AHCI_PCI_BAR 5
> -- 
> 1.7.7.4
> 
> --
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Patch

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 174eca6..4aab550 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -150,6 +150,7 @@  enum piix_controller_ids {
 	tolapai_sata,
 	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
 	ich8_sata_snb,
+	ich8_2port_sata_snb,
 };
 
 struct piix_map_db {
@@ -304,7 +305,7 @@  static const struct pci_device_id piix_pci_tbl[] = {
 	/* SATA Controller IDE (Lynx Point) */
 	{ 0x8086, 0x8c01, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
 	/* SATA Controller IDE (Lynx Point) */
-	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb },
 	/* SATA Controller IDE (Lynx Point) */
 	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (Lynx Point-LP) */
@@ -422,6 +423,7 @@  static const struct piix_map_db *piix_map_db_table[] = {
 	[ich8m_apple_sata]	= &ich8m_apple_map_db,
 	[tolapai_sata]		= &tolapai_map_db,
 	[ich8_sata_snb]		= &ich8_map_db,
+	[ich8_2port_sata_snb]	= &ich8_2port_map_db,
 };
 
 static struct pci_bits piix_enable_bits[] = {
@@ -1225,6 +1227,16 @@  static struct ata_port_info piix_port_info[] = {
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
+
+	[ich8_2port_sata_snb] =
+	{
+		.flags		= PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR
+					| PIIX_FLAG_PIO16,
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
+		.udma_mask	= ATA_UDMA6,
+		.port_ops	= &piix_sata_ops,
+	},
 };
 
 #define AHCI_PCI_BAR 5