On Wed, Nov 14, 2007 at 12:44:23PM -0500, Mark Lord wrote:
> Sebastian Kemper reported that issuing CD/DVD commands under libata
> is not fully compatible with ide-scsi. In particular, the
> GPCMD_SET_STREAMING
> was being rejected at the host level in some instances.
>
> The reason is that libata-scsi insists upon the cmd_len field exactly
> matching
> the SCSI opcode being issued, whereas ide-scsi tolerates 12-byte commands
> contained within a 16-byte (cmd_len) CDB.
>
> There doesn't seem to be a good reason for us to not be compatible there,
> so here is a patch to fix libata-scsi to permit SCSI opcodes so long as
> they fit within whatever size CDB is provided.
>
> Signed-off-by: Mark Lord <[email protected]>
Acked-by: Alan Cox <[email protected]>
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