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[PATCH] libata: Fix the HSM error_mask mapping (was: Re: libata-tj and SMART)

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Fix the HSM error_mask mapping.

Changes:
- Better mapping in ac_err_mask()
- In HSM_ST_FIRST ans HSM_ST state, check ATA_ERR|ATA_DF and map it to AC_ERR_DEV instead of AC_ERR_HSM.
- In HSM_ST_FIRST and HSM_ST state, map DRQ=1 ERR=1 to AC_ERR_HSM.
- For PIO data in and DRQ=1 ERR=1, add check after the junk data block is read.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Albert Lee
2006-05-19 11:43:04 +08:00
committed by Jeff Garzik
parent 3d71b3b0b6
commit 3655d1d323
2 changed files with 25 additions and 8 deletions
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2
include/linux/libata.h
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@@ -1062,7 +1062,7 @@ static inline int ata_try_flush_cache(const struct ata_device *dev)
static inline unsigned int ac_err_mask(u8 status)
{
if (status & ATA_BUSY)
if (status & (ATA_BUSY | ATA_DRQ))
return AC_ERR_HSM;
if (status & (ATA_ERR | ATA_DF))
return AC_ERR_DEV;