[dpdk-dev] [PATCH 3/4] net/e1000: fix VF RX queue interrupt enabling

Wenzhuo Lu wenzhuo.lu at intel.com
Wed Jan 24 02:38:44 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: 316f4f1adc2e ("net/igb: support VF mailbox interrupt for link up/down")
CC: stable at dpdk.org

Signed-off-by: Wenzhuo Lu <wenzhuo.lu 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 077e094..15347df 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3295,7 +3295,8 @@ static int eth_igbvf_link_update(struct e1000_hw *hw)
 	}
 
 	/* 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)
-- 
1.9.3



More information about the dev mailing list