netdev - RE: [Intel-wired-lan] [PATCH net-next v4 5/5] ice: use src VSI instead of src MAC in slow-path

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Date:   Mon, 24 Apr 2023 06:35:11 +0000
From:   "Buvaneswaran, Sujai" <sujai.buvaneswaran@...el.com>
To:     Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC:     "pmenzel@...gen.mpg.de" <pmenzel@...gen.mpg.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Simon Horman <simon.horman@...igine.com>
Subject: RE: [Intel-wired-lan] [PATCH net-next v4 5/5] ice: use src VSI
 instead of src MAC in slow-path

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Michal Swiatkowski
> Sent: Friday, April 7, 2023 10:22 PM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: pmenzel@...gen.mpg.de; netdev@...r.kernel.org; Simon Horman
> <simon.horman@...igine.com>
> Subject: [Intel-wired-lan] [PATCH net-next v4 5/5] ice: use src VSI instead of
> src MAC in slow-path
> 
> The use of a source MAC to direct packets from the VF to the corresponding
> port representor is only ok if there is only one MAC on a VF. To support this
> functionality when the number of MACs on a VF is greater, it is necessary to
> match a source VSI instead of a source MAC.
> 
> Let's use the new switch API that allows matching on metadata.
> 
> If MAC isn't used in match criteria there is no need to handle adding rule
> after virtchnl command. Instead add new rule while port representor is being
> configured.
> 
> Remove rule_added field, checking for sp_rule can be used instead.
> Remove also checking for switchdev running in deleting rule as it can be
> called from unroll context when running flag isn't set. Checking for sp_rule
> covers both context (with and without running flag).
> 
> Rules are added in eswitch configuration flow, so there is no need to have
> replay function.
> 
> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
> Reviewed-by: Piotr Raczynski <piotr.raczynski@...el.com>
> Reviewed-by: Simon Horman <simon.horman@...igine.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_eswitch.c  | 83 ++++++-------------
> drivers/net/ethernet/intel/ice/ice_eswitch.h  | 14 ----
>  .../ethernet/intel/ice/ice_protocol_type.h    |  5 +-
>  drivers/net/ethernet/intel/ice/ice_repr.c     | 17 ----
>  drivers/net/ethernet/intel/ice/ice_repr.h     |  5 +-
>  drivers/net/ethernet/intel/ice/ice_switch.c   |  6 ++
>  drivers/net/ethernet/intel/ice/ice_switch.h   |  1 +
>  drivers/net/ethernet/intel/ice/ice_vf_lib.c   |  3 -
>  drivers/net/ethernet/intel/ice/ice_virtchnl.c |  8 --
>  9 files changed, 40 insertions(+), 102 deletions(-)
> 
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@...el.com>