netdev - Re: [iwl-net v1 1/2] ice: tc: check src

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Date: Tue, 19 Mar 2024 11:36:49 +0000
From: Simon Horman <horms@...nel.org>
To: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Cc: intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
	Jedrzej Jagielski <jedrzej.jagielski@...el.com>,
	Sridhar Samudrala <sridhar.samudrala@...el.com>
Subject: Re: [iwl-net v1 1/2] ice: tc: check src_vsi in case of traffic from
 VF

On Fri, Mar 15, 2024 at 12:08:20PM +0100, Michal Swiatkowski wrote:
> In case of traffic going from the VF (so ingress for port representor)
> source VSI should be consider during packet classification. It is
> needed for hardware to not match packets from different ports with
> filters added on other port.
> 
> It is only for "from VF" traffic, because other traffic direction
> doesn't have source VSI.
> 
> Set correct ::src_vsi in rule_info to pass it to the hardware filter.
> 
> For example this rule should drop only ipv4 packets from eth10, not from
> the others VF PRs. It is needed to check source VSI in this case.
> $tc filter add dev eth10 ingress protocol ip flower skip_sw action drop
> 
> Fixes: 0d08a441fb1a ("ice: ndo_setup_tc implementation for PF")
> Reviewed-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
> Reviewed-by: Sridhar Samudrala <sridhar.samudrala@...el.com>
> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>

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