[dpdk-stable] [dpdk-dev] [PATCH 2/2] net/i40e: fix fdir allocating msix resource error
Zhang, Qi Z
qi.z.zhang at intel.com
Mon Jul 20 12:31:06 CEST 2020
> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Jiang Mao
> Sent: Thursday, July 9, 2020 3:53 AM
> To: Ye, Xiaolong <xiaolong.ye at intel.com>
> Cc: dev at dpdk.org; stable at dpdk.org; Jiang, MaoX <maox.jiang at intel.com>
> Subject: [dpdk-dev] [PATCH 2/2] net/i40e: fix fdir allocating msix resource error
>
> Fdir allocating msix resource is not strictly necessary, if no resource left, print a
> warning message.
>
> Fixes: 4861cde461 (i40e: new poll mode driver)
> Cc: stable at dpdk.org
> Signed-off-by: Jiang Mao <maox.jiang at intel.com>
> ---
> drivers/net/i40e/i40e_ethdev.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
> index 16fcb8d..885b637 100644
> --- a/drivers/net/i40e/i40e_ethdev.c
> +++ b/drivers/net/i40e/i40e_ethdev.c
> @@ -5732,6 +5732,17 @@ struct i40e_vsi *
> vsi->nb_msix = RTE_MIN(vsi->nb_qps,
> RTE_MAX_RXTX_INTR_VEC_ID);
> }
> + } else if (type == I40E_VSI_FDIR) {
> + ret = i40e_res_pool_alloc(&pf->msix_pool, 1);
> + if (ret < 0) {
> + PMD_DRV_LOG(WARNING, "MSIX vectors used up, FDIR can`t
> bind interrupt");
> + vsi->msix_intr = 0;
> + vsi->nb_msix = 0;
> + } else {
> + vsi->msix_intr = ret;
> + vsi->nb_msix = 1;
> + }
> +
Better to merge above branch into below branch and remove the "else" branch
> } else if (type != I40E_VSI_SRIOV) {
> ret = i40e_res_pool_alloc(&pf->msix_pool, 1);
> if (ret < 0) {
> --
> 1.8.3.1
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