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net/avf: fix VF Rx interrupt enabling

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As UIO doesn't support multiple interrupt, and the interrupt
is occupied by the control plane. 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: d6bde6b5eae9 ("net/avf: enable Rx interrupt")

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
This commit is contained in:
Wenzhuo Lu 2018-01-24 16:16:53 +08:00 committed by Ferruh Yigit
parent 727411f50a
commit 492180e03a
1 changed files with 4 additions and 2 deletions
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6
drivers/net/avf/avf_ethdev.c
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@ -292,7 +292,8 @@ static int avf_config_rx_queues_irqs(struct rte_eth_dev *dev,
uint16_t interval, i;
int vec;
if (dev->data->dev_conf.intr_conf.rxq != 0) {
if (rte_intr_cap_multiple(intr_handle) &&
dev->data->dev_conf.intr_conf.rxq) {
if (rte_intr_efd_enable(intr_handle, dev->data->nb_rx_queues))
return -1;
}
@ -308,7 +309,8 @@ static int avf_config_rx_queues_irqs(struct rte_eth_dev *dev,
}
}
if (!dev->data->dev_conf.intr_conf.rxq) {
if (!dev->data->dev_conf.intr_conf.rxq ||
!rte_intr_dp_is_en(intr_handle)) {
/* Rx interrupt disabled, Map interrupt only for writeback */
vf->nb_msix = 1;
if (vf->vf_res->vf_cap_flags &