[dpdk-stable] patch 'net/i40e: fix VF Rx interrupt enabling' has been queued to LTS release 16.11.5

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/09/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From 4fc9c11434ee05515e7b68a3833f664d50e3ea65 Mon Sep 17 00:00:00 2001
From: Wenzhuo Lu <wenzhuo.lu at intel.com>
Date: Wed, 24 Jan 2018 16:16:50 +0800
Subject: [PATCH] net/i40e: fix VF Rx interrupt enabling

[ upstream commit 4ae1d081fb75e045e0c6b9e774647056715cd204 ]

When using UIO, after enabling the interrupt to get the PF
message, VF RX queue interrupt is not working.
It's expected, as UIO doesn't support multiple interrupt.
So, PMD should not try to enable RX queue interrupt. Then
APP can know the RX queue interrupt is not enabled and only
choose the polling mode.

Fixes: ae19955e7c86 ("i40evf: support reporting PF reset")

Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
Acked-by: Helin Zhang <helin.zhang at intel.com>
Acked-by: Beilei Xing <beilei.xing at intel.com>
---
 drivers/net/i40e/i40e_ethdev_vf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 78e5866af..b19224d96 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2115,7 +2115,8 @@ i40evf_dev_start(struct rte_eth_dev *dev)
 					dev->data->nb_tx_queues);
 
 	/* check and configure queue intr-vector mapping */
-	if (dev->data->dev_conf.intr_conf.rxq != 0) {
+	if (rte_intr_cap_multiple(intr_handle) &&
+	    dev->data->dev_conf.intr_conf.rxq) {
 		intr_vector = dev->data->nb_rx_queues;
 		if (rte_intr_efd_enable(intr_handle, intr_vector))
 			return -1;
-- 
2.14.2