[dpdk-dev] [PATCH v2 1/4] net/i40e: fix VF RX queue interrupt enabling

Wenzhuo Lu wenzhuo.lu at intel.com
Wed Jan 24 09:16:50 CET 2018


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 at dpdk.org

Signed-off-by: Wenzhuo Lu <wenzhuo.lu 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 0cca0d3..60783f9 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1976,7 +1976,8 @@ static int eth_i40evf_pci_remove(struct rte_pci_device *pci_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;
-- 
1.9.3



More information about the dev mailing list