lkml.org 
[lkml]   [2007]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] ahci.c: walkaround for SB600 SATA internal error issue
Conke Hu wrote:
> There is a HW issue in ATI SB600 SATA that PxSERR.E should not be
> set on some conditions, for example, when there is no media in SATA
> CD/DVD drive or media is not ready, AHCI controller fails to execute
> ATAPI commands and reports PORT_IRQ_TF_ERR, but ATI SB600 SATA
> controller sets PxSERR.E at the
> same time, which is not necessary.
> This patch is just to ignore the INTERNAL ERROR in such case.
> Without this patch, ahci error handler will report many errors as
> below:
> ----------- cut from dmesg -----------
> ata9: soft resetting port
> ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata9.00: configured for UDMA/33
> ata9: EH complete
> ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2
> ata9.00: (irq_stat 0x40000001)
> ata9.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
> res 51/24:03:00:00:20/00:00:00:00:00/a0 Emask 0x40 (internal error)
> ata9: soft resetting port
> ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata9.00: configured for UDMA/33
> ata9: EH complete
> ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2
> ata9.00: (irq_stat 0x40000001)
> ata9.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x43 data 12 in
> res 51/24:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error)
> -------- end cut ---------
>
> Signed-off-by: Conke Hu <conke.hu@amd.com>

Acked-by: Tejun Heo <htejun@gmail.com>

--
tejun
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-03-27 12:51    [from the cache]
©2003-2011 Jasper Spaans