[dpdk-stable] patch 'net/e1000: 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 e902730603ae884b6c13f17660a4d4cdaf9b1c2a Mon Sep 17 00:00:00 2001
From: Wenzhuo Lu <wenzhuo.lu at intel.com>
Date: Wed, 24 Jan 2018 16:16:52 +0800
Subject: [PATCH] net/e1000: fix VF Rx interrupt enabling

[ upstream commit 61c1f1b7910711922d2c66c9e722d7f1f08eb663 ]

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: 316f4f1adc2e ("net/igb: support VF mailbox interrupt for link up/down")

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/e1000/igb_ethdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 3c85aff3d..5108ff351 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3090,7 +3090,8 @@ igbvf_dev_start(struct rte_eth_dev *dev)
 	}
 
 	/* 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;
 		ret = rte_intr_efd_enable(intr_handle, intr_vector);
 		if (ret)
-- 
2.14.2