[dpdk-dev] [PATCH] net/ice: fix flow redirector issue

[Wang, Haiyue]

> -----Original Message-----
> From: Xing, Beilei <beilei.xing at intel.com>
> Sent: Wednesday, April 22, 2020 20:23
> To: dev at dpdk.org; Wang, Haiyue <haiyue.wang at intel.com>; Zhang, Qi Z <qi.z.zhang at intel.com>
> Subject: [PATCH] net/ice: fix flow redirector issue
> 
> If there's VF reset, the kernel PF will remove rules
> associated with the reset VF no matter the HW VSI ID
> is changed or not. So DCF should redirector all rules
> associated with the reset VF no matter the HW VSI ID
> is changed or not.
> 
> Fixes: f10cde8e8478 ("net/ice: get VF hardware index in DCF")
> Fixes: dc0f06849e50 ("net/ice: redirect switch rule to new VSI")
> 
> Signed-off-by: Beilei Xing <beilei.xing at intel.com>
> ---
>  drivers/net/ice/ice_dcf.c        | 2 +-
>  drivers/net/ice/ice_dcf_parent.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ice/ice_dcf.c b/drivers/net/ice/ice_dcf.c
> index 4c30f0e..0cd5d1b 100644
> --- a/drivers/net/ice/ice_dcf.c
> +++ b/drivers/net/ice/ice_dcf.c
> @@ -536,7 +536,7 @@ ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw)
>  	rte_intr_disable(&pci_dev->intr_handle);
>  	ice_dcf_disable_irq0(hw);
> 
> -	if (ice_dcf_get_vf_resource(hw) || ice_dcf_get_vf_vsi_map(hw))
> +	if (ice_dcf_get_vf_resource(hw) || ice_dcf_get_vf_vsi_map(hw) < 0)
>  		err = -1;
> 
>  	rte_intr_enable(&pci_dev->intr_handle);
> diff --git a/drivers/net/ice/ice_dcf_parent.c b/drivers/net/ice/ice_dcf_parent.c
> index d4b4ede..bdfc7d4 100644
> --- a/drivers/net/ice/ice_dcf_parent.c
> +++ b/drivers/net/ice/ice_dcf_parent.c
> @@ -45,7 +45,7 @@ ice_dcf_update_vsi_ctx(struct ice_hw *hw, uint16_t vsi_handle,
>  			VIRTCHNL_DCF_VF_VSI_ID_S;
> 
>  		/* Redirect rules if vsi mapping table changes. */
> -		if (!first_update && vsi_ctx->vsi_num != new_vsi_num) {
> +		if (!first_update) {
>  			struct ice_flow_redirect rd;
> 
>  			memset(&rd, 0, sizeof(struct ice_flow_redirect));
> --
> 2.7.4

Acked-by: Haiyue Wang <haiyue.wang at intel.com>