netdev - Re: [PATCH iwl-net] ice: Fix VSI list rule with ICE_SW_LKUP

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Date: Fri, 7 Jun 2024 12:37:38 +0100
From: Simon Horman <horms@...nel.org>
To: Marcin Szycik <marcin.szycik@...ux.intel.com>
Cc: intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
	Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>
Subject: Re: [PATCH iwl-net] ice: Fix VSI list rule with ICE_SW_LKUP_LAST type

On Wed, Jun 05, 2024 at 04:17:45PM +0200, Marcin Szycik wrote:
> Adding/updating VSI list rule, as well as allocating/freeing VSI list
> resource are called several times with type ICE_SW_LKUP_LAST, which fails
> because ice_update_vsi_list_rule() and ice_aq_alloc_free_vsi_list()
> consider it invalid. Allow calling these functions with ICE_SW_LKUP_LAST.
> 
> This fixes at least one issue in switchdev mode, where the same rule with
> different action cannot be added, e.g.:
> 
>   tc filter add dev $PF1 ingress protocol arp prio 0 flower skip_sw \
>     dst_mac ff:ff:ff:ff:ff:ff action mirred egress redirect dev $VF1_PR
>   tc filter add dev $PF1 ingress protocol arp prio 0 flower skip_sw \
>     dst_mac ff:ff:ff:ff:ff:ff action mirred egress redirect dev $VF2_PR
> 
> Fixes: 0f94570d0cae ("ice: allow adding advanced rules")
> Suggested-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
> Signed-off-by: Marcin Szycik <marcin.szycik@...ux.intel.com>

Reviewed-by: Simon Horman <horms@...nel.org>