tree 652bf355631417eb402589d9a479454507d8c444
parent f97ec7db1606875666366bfcba8476f8c917db96
author Ilias Tsitsimpis <iliastsi@arrikto.com> 1429813809 +0300
committer Nicholas Bellinger <nab@linux-iscsi.org> 1433050907 -0700

target/user: Add support for bidirectional commands

Enable TCMU to handle bidirectional SCSI commands. In such cases,
entries in iov[] cover both the Data-In and the Data-Out buffers. The
first iov_cnt entries correspond to the Data-Out buffer, while the
remaining iov_bidi_cnt entries correspond to the Data-In buffer.

Signed-off-by: Ilias Tsitsimpis <iliastsi@arrikto.com>
Signed-off-by: Vangelis Koukis <vkoukis@arrikto.com>
Reviewed-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>