libata: add extra internal command
Bump the internal tag to 32, instead of stealing the last tag in our regular command space. This works just fine, since we don't actually need a separate hardware tag for this. Internal commands cannot coexist with NCQ commands. As a bonus, we get rid of the special casing of what tag to use for the internal command. This is in preparation for utilizing all 32 commands for normal IO. Signed-off-by:Jens Axboe <axboe@kernel.dk> Signed-off-by:
Tejun Heo <tj@kernel.org>
parent
ba80c3a5
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