From: Alvin Zhang <alvinx.zhang@intel.com>
Date: Wed, 23 Dec 2020 05:29:36 +0000 (+0800)
Subject: net/iavf: fix queue pairs configuration
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=403aebc44c04952f98fc7501e26eb77098d74bc8;p=dpdk.git

net/iavf: fix queue pairs configuration

Check if there are enough queue pairs currently allocated, and if not,
request PF to allocate them.

Fixes: e436cd43835b ("net/iavf: negotiate large VF and request more queues")
Cc: stable@dpdk.org

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Tested-by: Zhimin Huang <zhiminx.huang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
---

diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index d2fa168256..7bf31d4f4e 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -375,8 +375,10 @@ iavf_dev_configure(struct rte_eth_dev *dev)
 	} else {
 		/* Check if large VF is already enabled. If so, disable and
 		 * release redundant queue resource.
+		 * Or check if enough queue pairs. If not, request them from PF.
 		 */
-		if (vf->lv_enabled) {
+		if (vf->lv_enabled ||
+		    num_queue_pairs > vf->vsi_res->num_queue_pairs) {
 			ret = iavf_queues_req_reset(dev, num_queue_pairs);
 			if (ret)
 				return ret;