From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doug Ledford Subject: Re: [PATCH rdma-next] IB/cma: Send MRA for reply messages Date: Mon, 24 Apr 2017 12:27:26 -0400 Message-ID: <1493051246.3041.46.camel@redhat.com> References: <20170416043134.18860-1-leon@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20170416043134.18860-1-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Leon Romanovsky Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Moni Shoua List-Id: linux-rdma@vger.kernel.org On Sun, 2017-04-16 at 07:31 +0300, Leon Romanovsky wrote: > From: Moni Shoua > > Current implementation of RDMA_CM sends MRA (Message Receipt > Acknowledgment) only for request messages but not for response > messages. > > As a result, a slow active side of the connection may send a ready- > to-use > message to the passive side in a delay that is too long for the > passive > side to wait for. > > This patch adds a call to ib_send_cm_mra() upon receiving a response > message and by this tells the other side to modify the service > timeout > to a bigger value, 16 times than before. As in the request case, MRA > for reply will be sent only if a duplicate response has arrived. > > Signed-off-by: Moni Shoua > Reviewed-by: Matan Barak > Signed-off-by: Leon Romanovsky Thanks, applied. -- Doug Ledford     GPG KeyID: B826A3330E572FDD     Key fingerprint = AE6B 1BDA 122B 23B4 265B  1274 B826 A333 0E57 2FDD -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html