[openib-general] [PATCH] validate MADs issued from userspace for spec compliance C13-18.1.1

[Michael S. Tsirkin]

This patch looks good and worked well here for several days.
An earlier version of this patch (by Jack) has also shipped with OFED 1.0.

As was discussed earlier, I suggest queueing this for 2.6.18 - without this
patch, we observe that RMPP transactions are sometimes aborted because of
duplicate packets (which result typically from retries after ACK got lost).

Acked-by: Michael S. Tsirkin <mst at mellanox.co.il>
Acked-by: Jack Morgenstein <jackm at mellanox.co.il>

Quoting r. Sean Hefty <sean.hefty at intel.com>:
Subject: [PATCH] validate MADs issued from userspace for spec compliance C13-18.1.1

Enhance validation of MADs sent by userspace clients for spec
compliance with C13-18.1.1 (duplicate requests / responses).  Also
verify that RMPP MADs are data only, to avoid a userspace app
causing a kernel crash by sending non-data MADs.

Signed-off-by: Sean Hefty <sean.hefty at intel.com>

-- 
MST