From 61c1f1b7910711922d2c66c9e722d7f1f08eb663 Mon Sep 17 00:00:00 2001 From: Wenzhuo Lu Date: Wed, 24 Jan 2018 16:16:52 +0800 Subject: [PATCH] net/e1000: fix VF Rx interrupt enabling 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") CC: stable@dpdk.org Signed-off-by: Wenzhuo Lu Acked-by: Helin Zhang Acked-by: Beilei Xing --- 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 53b8ffa45f..3c5138dea5 100644 --- a/drivers/net/e1000/igb_ethdev.c +++ b/drivers/net/e1000/igb_ethdev.c @@ -3295,7 +3295,8 @@ 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) -- 2.20.1