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| author | aurel32 | 2008-10-17 10:08:56 +0200 |
|---|---|---|
| committer | aurel32 | 2008-10-17 10:08:56 +0200 |
| commit | 89c0f6438d16ebceccdcd096bbc0b5536146a443 (patch) | |
| tree | 48089479d5c5f06f5866674885bb0acd28cda3e3 /slirp/slirp.c | |
| parent | i386/SVM: return amount of ASIDs (diff) | |
| download | qemu-89c0f6438d16ebceccdcd096bbc0b5536146a443.tar.gz qemu-89c0f6438d16ebceccdcd096bbc0b5536146a443.tar.xz qemu-89c0f6438d16ebceccdcd096bbc0b5536146a443.zip | |
scsi-generic: correct error management
this patch allows to fully use a tape device connected to qemu through
the scsi-generic interface.
Previous patch introduced tape SCSI commands management, this one
improve error case management:
- the SCSI controller command completion must be called with the status
value, not the sense value. In the case of scsi-generic, the SCSI status
is given by the field status of sg_io_hdr_t (the value is left shifted
by one regarding status codes defined in /usr/include/scsi/scsi.h)
- when a read is aborted due to a mark/EOF/EOD/EOM, the len reported to
controller can be 0. LSI controller emulation doesn't know how to manage
this. A workaround found is to call the completion routine with
SCSI_REASON_DONE just after calling it with SCSI_REASON_DATA with len=0.
This patch also manages correctly the block size of the tape device.
This patch has been tested with a real tape device "HP C5683A", linux
guest (debian etch) and tools like "mt", "tar" and "btape".
Windows guest is not better supported than before...
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5497 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'slirp/slirp.c')
0 files changed, 0 insertions, 0 deletions