tree 403dd22e8affcb2c92415065ceeac894374d7af3
parent d4a85c309b33f93cb211f2fa9d26fa77d0bb7b5e
author Christoph Hellwig <hch@lst.de> 1462291269 +0200
committer Doug Ledford <dledford@redhat.com> 1463161039 -0400

IB/core: generic RDMA READ/WRITE API

This supports both manual mapping of lots of SGEs, as well as using MRs
from the QP's MR pool, for iWarp or other cases where it's more optimal.
For now, MRs are only used for iWARP transports.  The user of the RDMA-RW
API must allocate the QP MR pool as well as size the SQ accordingly.

Thanks to Steve Wise for testing, fixing and rewriting the iWarp support,
and to Sagi Grimberg for ideas, reviews and fixes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>