From 7bd2de9960419422a4591f4b5d286f1f911a0a47 Mon Sep 17 00:00:00 2001
From: Jeff Squyres <jsquyres@cisco.com>
Date: Thu, 20 Apr 2017 13:28:15 -0700
Subject: [PATCH] usnic: ensure to set the iov_limit to 1
The usNIC BTL does not use more than 1 iov, so be sure to set it to 1
so that we don't allocate cq/rq/sq entries based on a default (i.e.,
>1) number of iovs per entry.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
---
opal/mca/btl/usnic/btl_usnic_module.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/opal/mca/btl/usnic/btl_usnic_module.c b/opal/mca/btl/usnic/btl_usnic_module.c
index efad1ed2b7..4b41edcde5 100644
--- a/opal/mca/btl/usnic/btl_usnic_module.c
+++ b/opal/mca/btl/usnic/btl_usnic_module.c
@@ -1552,6 +1552,8 @@ static int create_ep(opal_btl_usnic_module_t* module,
hint->rx_attr->size = channel->chan_rd_num;
hint->tx_attr->size = channel->chan_sd_num;
+ hint->tx_attr->iov_limit = 1;
+ hint->rx_attr->iov_limit = 1;
/* specific ports requested? */
sin = hint->src_addr;