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| author | Albert Lee <albertcc@tw.ibm.com> | 2007-11-15 10:35:46 +0900 |
|---|---|---|
| committer | Tejun Heo <htejun@gmail.com> | 2007-11-19 12:28:11 +0900 |
| commit | 2d3b8eea7f2fbafd5d779cc92f7aedbd1ef575e9 (patch) | |
| tree | 292cd6197c457defc3e07d02a663cabb3dceb253 /include | |
| parent | 21bef6dd2b419f28c8096a8e30ad86dcbff44c02 (diff) | |
| download | blackbird-op-linux-2d3b8eea7f2fbafd5d779cc92f7aedbd1ef575e9.tar.gz blackbird-op-linux-2d3b8eea7f2fbafd5d779cc92f7aedbd1ef575e9.zip | |
libata: workaround DRQ=1 ERR=1 for ATAPI tape drives
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 3f9a6a140a98..ef52a07c43d8 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -340,6 +340,7 @@ enum { ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */ ATA_HORKAGE_IPM = (1 << 7), /* Link PM problems */ ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */ + ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */ /* DMA mask for user DMA control: User visible values; DO NOT renumber */ |
