commit 65ca78fdf9a684743bfca278cf1fcfea4603931d
Author: Nelson Escobar <neescoba@cisco.com>
Date:   Fri Mar 18 11:33:34 2016 -0700

    enic: fix Rx descriptor limit
    
    On initialization, the rq descriptor count was set to the limit
    of the vic.  When the requested number of rx descriptors was
    less than this count, enic_alloc_rq() was incorrectly setting
    the count to the lower value.  This results in later calls to
    enic_alloc_rq() incorrectly using the lower value as the adapter
    limit.
    
    Fixes: fefed3d1e62c ("enic: new driver")
    
    Signed-off-by: Nelson Escobar <neescoba@cisco.com>
    Reviewed-by: John Daley <johndale@cisco.com>

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index e30672c..2f79cf0 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -524,24 +524,22 @@ int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
 				"policy.  Applying the value in the adapter "\
 				"policy (%d).\n",
 				queue_idx, nb_desc, enic->config.rq_desc_count);
-		} else if (nb_desc != enic->config.rq_desc_count) {
-			enic->config.rq_desc_count = nb_desc;
-			dev_info(enic,
-				"RX Queues - effective number of descs:%d\n",
-				nb_desc);
+			nb_desc = enic->config.rq_desc_count;
 		}
+		dev_info(enic, "RX Queues - effective number of descs:%d\n",
+			 nb_desc);
 	}
 
 	/* Allocate queue resources */
 	rc = vnic_rq_alloc(enic->vdev, rq, queue_idx,
-		enic->config.rq_desc_count, sizeof(struct rq_enet_desc));
+		nb_desc, sizeof(struct rq_enet_desc));
 	if (rc) {
 		dev_err(enic, "error in allocation of rq\n");
 		goto err_exit;
 	}
 
 	rc = vnic_cq_alloc(enic->vdev, &enic->cq[queue_idx], queue_idx,
-		socket_id, enic->config.rq_desc_count,
+		socket_id, nb_desc,
 		sizeof(struct cq_enet_rq_desc));
 	if (rc) {
 		dev_err(enic, "error in allocation of cq for rq\n");
@@ -550,7 +548,7 @@ int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
 
 	/* Allocate the mbuf ring */
 	rq->mbuf_ring = (struct rte_mbuf **)rte_zmalloc_socket("rq->mbuf_ring",
-			sizeof(struct rte_mbuf *) * enic->config.rq_desc_count,
+			sizeof(struct rte_mbuf *) * nb_desc,
 			RTE_CACHE_LINE_SIZE, rq->socket_id);
 
 	if (rq->mbuf_ring != NULL)