From: Wenzhuo Lu Date: Wed, 24 Jan 2018 08:16:50 +0000 (+0800) Subject: net/i40e: fix VF Rx interrupt enabling X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4ae1d081fb75e045e0c6b9e774647056715cd204;p=dpdk.git net/i40e: 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: ae19955e7c86 ("i40evf: support reporting PF reset") CC: stable@dpdk.org Signed-off-by: Wenzhuo Lu Acked-by: Helin Zhang Acked-by: Beilei Xing --- diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index 6ac3f8c04a..57f76131a0 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -1976,7 +1976,8 @@ 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;