[dpdk-dev] [PATCH v2] net/iavf: fix vector mapping with queue
Zhang, Qi Z
qi.z.zhang at intel.com
Fri Jan 29 03:24:43 CET 2021
> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Jingjing Wu
> Sent: Thursday, January 28, 2021 11:00 PM
> To: dev at dpdk.org
> Cc: Wu, Jingjing <jingjing.wu at intel.com>; Xing, Beilei <beilei.xing at intel.com>;
> stable at dpdk.org
> Subject: [dpdk-dev] [PATCH v2] net/iavf: fix vector mapping with queue
>
> Fix the vector mapping with queue by changing the recircle when exceeds
> RX_VEC_START + nb_msix;
>
> Fixes: d6bde6b5eae9 ("net/avf: enable Rx interrupt")
>
> Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
> ---
> v2:
> - fix compile warning.
>
> drivers/net/iavf/iavf_ethdev.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c index
> cf6ea0b15..744904e6e 100644
> --- a/drivers/net/iavf/iavf_ethdev.c
> +++ b/drivers/net/iavf/iavf_ethdev.c
> @@ -612,15 +612,15 @@ static int iavf_config_rx_queues_irqs(struct
> rte_eth_dev *dev,
> /* If Rx interrupt is reuquired, and we can use
> * multi interrupts, then the vec is from 1
> */
> - vf->nb_msix = RTE_MIN(vf->vf_res->max_vectors,
> - intr_handle->nb_efd);
> + vf->nb_msix = RTE_MIN(intr_handle->nb_efd,
> + (uint16_t)(vf->vf_res->max_vectors - 1));
> vf->msix_base = IAVF_RX_VEC_START;
> vec = IAVF_RX_VEC_START;
> for (i = 0; i < dev->data->nb_rx_queues; i++) {
> qv_map[i].queue_id = i;
> qv_map[i].vector_id = vec;
> intr_handle->intr_vec[i] = vec++;
> - if (vec >= vf->nb_msix)
> + if (vec >= vf->nb_msix + IAVF_RX_VEC_START)
> vec = IAVF_RX_VEC_START;
> }
> vf->qv_map = qv_map;
> --
> 2.21.1
Applied to dpdk-next-net-intel.
Thanks
Qi
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