Software posts a WR to a QP's SQ in order to initiate a message transfer with a QP of the same type in a remote CA.
A WR is posted to the SQ by executing the Post Send Request verb call. Refer to “Content of SQ WRs” on page 262 for a description of the WR's content.
The types of WRs that can be posted to a QP's SQ depends on the type of QP:
Message Send operation. Supported on RC, RD, UC, UD, and Raw QPs.
RDMA Write operation. Supported on UC, RC, and RD QPs.
RDMA Read operation. Supported on RD and RC QPs.
Atomic operations. Supported on RD and RC QPs.
Memory Window Bind operation. Supported on RC, UC, and RD QPs.
Resync operation is atypical. Supported on ...