[dpdk-stable] patch 'net/i40e: fix wrong return value when handling PF message' has been queued to stable release 16.11.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 16.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 01/28/17.
So please shout if anyone has objections.

---

Note 16.11 is a LTS release. v16.11.1 is planned to be released
shortly (about 2-3 weeks) after v17.02.

---

Thanks.

	--yliu

---
>From bf85fd798e9cd98c940e49b1cb83473c1206c8c9 Mon Sep 17 00:00:00 2001
From: Wenzhuo Lu <wenzhuo.lu at intel.com>
Date: Wed, 21 Dec 2016 16:29:40 +0800
Subject: [PATCH] net/i40e: fix wrong return value when handling PF message

[ upstream commit aca95e38cc13a2ddc65b459186e45c1a1447625e ]

When VF receives a message from PF, it should check the return
value. But in i40evf_execute_vf_cmd the value is ignored and not
returned to the caller.

Fixes: 95cd21f45d1b ("i40evf: allocate virtchnl commands buffer per VF")

Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
 drivers/net/i40e/i40e_ethdev.h    | 2 +-
 drivers/net/i40e/i40e_ethdev_vf.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 298cef4..28111a7 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -527,7 +527,7 @@ struct i40e_vf {
 	enum i40e_aq_link_speed link_speed;
 	bool vf_reset;
 	volatile uint32_t pend_cmd; /* pending command not finished yet */
-	uint32_t cmd_retval; /* return value of the cmd response from PF */
+	int32_t cmd_retval; /* return value of the cmd response from PF */
 	u16 pend_msg; /* flags indicates events from pf not handled yet */
 	uint8_t *aq_resp; /* buffer to store the adminq response from PF */
 
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index f54544e..5d86c7b 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -361,6 +361,7 @@ i40evf_execute_vf_cmd(struct rte_eth_dev *dev, struct vf_cmd_info *args)
 		err = -1;
 		do {
 			ret = i40evf_read_pfmsg(dev, &info);
+			vf->cmd_retval = info.result;
 			if (ret == I40EVF_MSG_CMD) {
 				err = 0;
 				break;
-- 
1.9.0