libata: workaround DRQ=1 ERR=1 for ATAPI tape drives

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After an error condition, some ATAPI tape drives set DRQ=1 together
with ERR=1 when asking the host to transfer the CDB of the next packet
command (i.e. request sense).  This patch, a revised version of
Alan/Mark's previous patch, adds ATA_HORKAGE_STUCK_ERR to workaround
the problem by ignoring the ERR bit and proceed sending the CDB.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mark Lord <liml@rtr.ca>
Signed-off-by: Tejun Heo <htejun@gmail.com>

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Albert Lee 2007-11-15 10:35:46 +09:00 • committed by Tejun Heo

parent 21bef6dd2b

commit 2d3b8eea7f

2 changed files with 14 additions and 5 deletions

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include/linux/libata.h

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