linux-kernel - RE: [PATCH 2.6.19-rc2] scsi: megaraid_{mm,mbox}: 64-bit DMA capability fix

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Message-ID: <890BF3111FB9484E9526987D912B261932E3E4@NAMAIL3.ad.lsil.com>
Date:	Mon, 16 Oct 2006 06:32:14 -0600
From:	"Ju, Seokmann" <Seokmann.Ju@....com>
To:	"Vasily Averin" <vvs@...ru>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	<linux-scsi@...r.kernel.org>,
	"James Bottomley" <James.Bottomley@...elEye.com>,
	"Andrew Morton" <akpm@...l.org>,
	"Linus Torvalds" <torvalds@...l.org>, <devel@...nvz.org>
Cc:	"Andrey Mirkin" <amirkin@...ru>
Subject: RE: [PATCH 2.6.19-rc2] scsi: megaraid_{mm,mbox}: 64-bit DMA capability fix

Hi,
Monday, October 16, 2006 4:09 AM, Vasily Averin wrote:
> It is known that 2 LSI Logic MegaRAID SATA RAID Controllers 
> (150-4 and 150-6)
> don't support 64-bit DMA. Unfortunately currently this check 
> is wrong and driver
>  sets 64-bit DMA mode for these devices.
ACK - this patch will fix the problem.
Thank you for the finding, Vasily.

Seokmann

> -----Original Message-----
> From: Vasily Averin [mailto:vvs@...ru] 
> Sent: Monday, October 16, 2006 4:09 AM
> To: Linux Kernel Mailing List; linux-scsi@...r.kernel.org; 
> Ju, Seokmann; James Bottomley; Andrew Morton; Linus Torvalds; 
> devel@...nvz.org
> Cc: Andrey Mirkin
> Subject: [PATCH 2.6.19-rc2] scsi: megaraid_{mm,mbox}: 64-bit 
> DMA capability fix
> 
> From: Andrey Mirkin (amirkin@...ru)
> 
> It is known that 2 LSI Logic MegaRAID SATA RAID Controllers 
> (150-4 and 150-6)
> don't support 64-bit DMA. Unfortunately currently this check 
> is wrong and driver
>  sets 64-bit DMA mode for these devices.
> 
> Signed-off-by:	Andrey Mirkin <amirkin@...ru>
> Ack-by:		Vasily Averin <vvs@...ru>
> 
> --- 
> linux-2.6.19-rc2/drivers/scsi/megaraid/megaraid_mbox.c.mgst6	
> 2006-10-16
> 10:26:50.000000000 +0400
> +++ linux-2.6.19-rc2/drivers/scsi/megaraid/megaraid_mbox.c	
> 2006-10-16
> 11:30:55.000000000 +0400
> @@ -884,7 +884,7 @@ megaraid_init_mbox(adapter_t *adapter)
> 
>  	if (((magic64 == HBA_SIGNATURE_64_BIT) &&
>  		((adapter->pdev->subsystem_device !=
> -		PCI_SUBSYS_ID_MEGARAID_SATA_150_6) ||
> +		PCI_SUBSYS_ID_MEGARAID_SATA_150_6) &&
>  		(adapter->pdev->subsystem_device !=
>  		PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) ||
>  		(adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
> 
> 
-
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