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net/e1000: fix VF Rx interrupt enabling

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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: 316f4f1adc ("net/igb: support VF mailbox interrupt for link up/down")
CC: stable@dpdk.org

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
This commit is contained in:
Wenzhuo Lu 2018-01-24 16:16:52 +08:00 committed by Ferruh Yigit
parent 8d1f13f96c
commit 61c1f1b791
1 changed files with 2 additions and 1 deletions
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3
drivers/net/e1000/igb_ethdev.c
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@ -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)