From: Kumar Sanghvi <kumaras@chelsio.com>
Date: Thu, 13 Oct 2011 08:21:30 +0000 (+0530)
Subject: RDMA/cxgb4: Make sure flush CQ entries are collected on connection close
X-Git-Tag: v3.2-rc1~104^2^4~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01e7da6ba53ca4d6189a1eae45607c0331c871f2;p=pandora-kernel.git

RDMA/cxgb4: Make sure flush CQ entries are collected on connection close

At the time when a peer closes the connection, iw_cxgb4 will not send
a cq event if ibqp.uobject exists.  In that case, its possible for a
user application to get blocked in ibv_get_cq_event().

To resolve this, call the cq's comp_handler to unblock any read from
ibv_get_cq_event().  This will trigger userspace to poll the cq and
collect flush status completions for any pending work requests.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

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