From: Doug Oucharek <doug.s.oucharek@intel.com>
Date: Mon, 1 May 2017 22:29:49 +0000 (-0700)
Subject: LU-9425 lnd: Turn on 2 sges by default
X-Git-Tag: 2.9.58~32
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=refs%2Fchanges%2F11%2F26911%2F2;p=fs%2Flustre-release.git

LU-9425 lnd: Turn on 2 sges by default

Currently, the fix in LU-5718 which allows for multiple sges
to deal with RDMA fragmentation is turned off by deafult
(set to 1).  This patch changes the default to 2 so
RDMA fragmentation is fixed by default.

Test-Parameters: trivial
Signed-off-by: Doug Oucharek <doug.s.oucharek@intel.com>
Change-Id: I8a29a7b32ababd37cbc471664083362bc7253d97
Reviewed-on: https://review.whamcloud.com/26911
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Ned Bass <bass6@llnl.gov>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/lnet/klnds/o2iblnd/o2iblnd_modparams.c
index 8fda41a..3ca0689 100644
--- a/lnet/klnds/o2iblnd/o2iblnd_modparams.c
+++ b/lnet/klnds/o2iblnd/o2iblnd_modparams.c
@@ -152,7 +152,7 @@ static int use_privileged_port = 1;
 module_param(use_privileged_port, int, 0644);
 MODULE_PARM_DESC(use_privileged_port, "use privileged port when initiating connection");
 
-static unsigned int wrq_sge = 1;
+static unsigned int wrq_sge = 2;
 module_param(wrq_sge, uint, 0444);
 MODULE_PARM_DESC(wrq_sge, "# scatter/gather element per work request");