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Message-ID: <PH0PR13MB47936891023E497D61FE3AF494139@PH0PR13MB4793.namprd13.prod.outlook.com>
Date: Mon, 28 Nov 2022 07:18:22 +0000
From: Tianyu Yuan <tianyu.yuan@...igine.com>
To: Eelco Chaudron <echaudro@...hat.com>,
Marcelo Leitner <mleitner@...hat.com>
CC: Jamal Hadi Salim <jhs@...atatu.com>,
Simon Horman <simon.horman@...igine.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
Cong Wang <xiyou.wangcong@...il.com>,
Davide Caratti <dcaratti@...hat.com>,
Edward Cree <edward.cree@....com>,
Ilya Maximets <i.maximets@....org>,
Oz Shlomo <ozsh@...dia.com>, Paul Blakey <paulb@...dia.com>,
Vlad Buslov <vladbu@...dia.com>,
"dev@...nvswitch.org" <dev@...nvswitch.org>,
oss-drivers <oss-drivers@...igine.com>,
Ziyang Chen <ziyang.chen@...igine.com>
Subject: RE: [PATCH/RFC net-next] tc: allow drivers to accept gact with PIPE
when offloading
> -----Original Message-----
> From: Eelco Chaudron <echaudro@...hat.com>
> Sent: Friday, November 25, 2022 10:33 PM
> To: Marcelo Leitner <mleitner@...hat.com>
> Cc: Tianyu Yuan <tianyu.yuan@...igine.com>; Jamal Hadi Salim
> <jhs@...atatu.com>; Simon Horman <simon.horman@...igine.com>;
> netdev@...r.kernel.org; Cong Wang <xiyou.wangcong@...il.com>; Davide
> Caratti <dcaratti@...hat.com>; Edward Cree <edward.cree@....com>; Ilya
> Maximets <i.maximets@....org>; Oz Shlomo <ozsh@...dia.com>; Paul
> Blakey <paulb@...dia.com>; Vlad Buslov <vladbu@...dia.com>;
> dev@...nvswitch.org; oss-drivers <oss-drivers@...igine.com>; Ziyang Chen
> <ziyang.chen@...igine.com>
> Subject: Re: [PATCH/RFC net-next] tc: allow drivers to accept gact with PIPE
> when offloading
>
>
>
> On 25 Nov 2022, at 15:19, Marcelo Leitner wrote:
>
> > On Fri, Nov 25, 2022 at 03:10:37AM +0000, Tianyu Yuan wrote:
> >> On Fri, Nov 25, 2022 at 10:21 AM Jamal Hadi Salim <jhs@...atatu.com>
> wrote:
> >>
> >>>
> >>> I am not sure if the mlx5 changes will work since they both seem to
> >>> be calling
> >>> mlx5e_tc_act_get() which expects the act->id to exist in tc_acts_xxx
> >>> tables, meaning mlx5e_tc_act_get() will always return you NULL and
> >>> that check is hit before you check for ACT_PIPE.
> >>>
> >>> Something not obvious to me:
> >>> Would all these drivers now be able to handle ACT_PIPE transparently
> >>> as if no action is specified? Cant see the obvious connection to
> >>> POLICE by just staring at the patch - is there and ACT_PIPE first then a
> POLICE?
> >>> Another question:
> >>> If the ACT_PIPE count is not being updated in s/w - is there a h/w
> >>> equivalent stat being updated?
> >>>
> >>> cheers,
> >>> jamal
> >>>
> >> Thanks Jamal for your review.
> >>
> >> About mlx5e_tc_act_get(), I'll later add PIPE action in tc_acts_nic
> >> so that mlx5e_tc_act_get() will return the right act_id.
> >>
> >> In driver we choose just ignore this gact with ACT_PIPE, so after
> >> parsing the filter(rule) from kernel, the remaining actions are just like
> what they used to be without changes in this patch. So the flow could be
> processed as before.
> >>
> >> The connection between POLICE and ACT_PIPE may exist in userspace
> >> (e.g. ovs), we could put a gact (PIPE) at the beginning place in each tc filter.
> We will also have an OVS patch for this propose.
> >>
> >> I'm not very clear with your last case, but in expectation, the once
> >> the traffic is offloaded in h/w tc datapath, the stats will be
> >> updated by the flower stats from hardware. And when the traffic is using
> s/w tc datapath, the stats are from software.
> >
> > I'm still confused here. Take, for example cxgb4 driver below. It will
> > simply ignore this action AFAICT. This is good because it will still
> > offload whatever vswitchd would be offloading but then, I don't see
> > how the stats will be right in the end. I think the hw stats will be
> > zeroed, no? (this is already considering the per action stats change
> > that Oz is working on, see [ RFC net-next v2 0/2] net: flow_offload:
> > add support for per action hw stats)
> >
> > I think the drivers have to reject the action if they don't support
> > it, and vswitchd will have to probe for proper support when starting.
>
> I guess OVS userspace needs a simple way to determine which approach to
> use, i.e. if the kernel has this patch series applied. Or else it would not be
> easy to migrate userspace to use this approach.
Yes, we could modify OVS' acinclude.m4 to check if the current has applied such a patch
series. If so, it will use this approach, otherwise, put actions in tc flower as before. So that
we could ensure the traffic will offloaded correctly.
>
> > Other than this, patch seems good.
> >
> > Thanks,
> > Marcelo
> >
> >>
> >> B.R.
> >> Tianyu
> >>
> >>>
> >>> On Tue, Nov 22, 2022 at 6:21 AM Simon Horman
> >>> <simon.horman@...igine.com> wrote:
> >>>>
> >>>> From: Tianyu Yuan <tianyu.yuan@...igine.com>
> >>>>
> >>>> Support gact with PIPE action when setting up gact in TC.
> >>>> This PIPE gact could come first in each tc filter to update the
> >>>> filter(flow) stats.
> >>>>
> >>>> The stats for each actons in a filter are updated by the flower
> >>>> stats from HW(via netdev drivers) in kernel TC rather than drivers.
> >>>>
> >>>> In each netdev driver, we don't have to process this gact, but only
> >>>> to ignore it to make sure the whole rule can be offloaded.
> >>>>
> >>>> Background:
> >>>>
> >>>> This is a proposed solution to a problem with a miss-match between
> >>>> TC police action instances - which may be shared between flows -
> >>>> and OpenFlow meter actions - the action is per flow, while the
> >>>> underlying meter may be shared. The key problem being that the
> >>>> police action statistics are shared between flows, and this does
> >>>> not match the requirement of OpenFlow for per-flow statistics.
> >>>>
> >>>> Ref: [ovs-dev] [PATCH] tests: fix reference output for meter
> >>>> offload stats
> >>>>
> >>>> https://mail.openvswitch.org/pipermail/ovs-dev/2022-
> >>> October/398363.htm
> >>>> l
> >>>>
> >>>> Signed-off-by: Tianyu Yuan <tianyu.yuan@...igine.com>
> >>>> Signed-off-by: Simon Horman <simon.horman@...igine.com>
> >>>> ---
> >>>> drivers/net/dsa/ocelot/felix_vsc9959.c | 5 +++++
> >>>> drivers/net/dsa/sja1105/sja1105_flower.c | 5 +++++
> >>>> drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 5 +++++
> >>>> drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c | 6
> ++++++
> >>>> drivers/net/ethernet/intel/ice/ice_tc_lib.c | 5 +++++
> >>>> drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 5 +++++
> >>>> drivers/net/ethernet/marvell/prestera/prestera_flower.c | 5 +++++
> >>>> drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 5 +++++
> >>>> drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 6 ++++++
> >>>> drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 5 +++++
> >>>> drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c | 5
> +++++
> >>>> drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c | 4 ++++
> >>>> drivers/net/ethernet/mscc/ocelot_flower.c | 5 +++++
> >>>> drivers/net/ethernet/netronome/nfp/flower/action.c | 5 +++++
> >>>> drivers/net/ethernet/qlogic/qede/qede_filter.c | 5 +++++
> >>>>
> >>> | 5 +++++
> >>>> drivers/net/ethernet/ti/cpsw_priv.c | 5 +++++
> >>>> net/sched/act_gact.c | 7 ++++---
> >>>> 18 files changed, 90 insertions(+), 3 deletions(-)
> >>>>
> >>>>
> >>>> diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c
> >>>> b/drivers/net/dsa/ocelot/felix_vsc9959.c
> >>>> index b0ae8d6156f6..e54eb8e28386 100644
> >>>> --- a/drivers/net/dsa/ocelot/felix_vsc9959.c
> >>>> +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
> >>>> @@ -2217,6 +2217,11 @@ static int vsc9959_psfp_filter_add(struct
> >>>> ocelot
> >>> *ocelot, int port,
> >>>> sfi.fmid = index;
> >>>> sfi.maxsdu = a->police.mtu;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> mutex_unlock(&psfp->lock);
> >>>> return -EOPNOTSUPP; diff --git
> >>>> a/drivers/net/dsa/sja1105/sja1105_flower.c
> >>>> b/drivers/net/dsa/sja1105/sja1105_flower.c
> >>>> index fad5afe3819c..d3eeeeea152a 100644
> >>>> --- a/drivers/net/dsa/sja1105/sja1105_flower.c
> >>>> +++ b/drivers/net/dsa/sja1105/sja1105_flower.c
> >>>> @@ -426,6 +426,11 @@ int sja1105_cls_flower_add(struct dsa_switch
> >>>> *ds,
> >>> int port,
> >>>> if (rc)
> >>>> goto out;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(extack,
> >>>> "Action not supported");
> >>>> diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
> >>>> b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
> >>>> index dd9be229819a..443f405c0ed4 100644
> >>>> --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
> >>>> +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
> >>>> @@ -770,6 +770,11 @@ int cxgb4_validate_flow_actions(struct
> >>>> net_device
> >>> *dev,
> >>>> case FLOW_ACTION_QUEUE:
> >>>> /* Do nothing. cxgb4_set_filter will validate */
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> netdev_err(dev, "%s: Unsupported action\n", __func__);
> >>>> return -EOPNOTSUPP; diff --git
> >>>> a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
> >>>> b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
> >>>> index cacd454ac696..cfbf2f76e83a 100644
> >>>> --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
> >>>> +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
> >>>> @@ -378,6 +378,11 @@ static int
> >>>> dpaa2_switch_tc_parse_action_acl(struct
> >>> ethsw_core *ethsw,
> >>>> case FLOW_ACTION_DROP:
> >>>> dpsw_act->action = DPSW_ACL_ACTION_DROP;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this action
> >>>> + count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(extack,
> >>>> "Action not supported"); @@
> >>>> -651,6
> >>>> +656,7 @@ int dpaa2_switch_cls_flower_replace(struct
> >>> dpaa2_switch_filter_block *block,
> >>>> case FLOW_ACTION_REDIRECT:
> >>>> case FLOW_ACTION_TRAP:
> >>>> case FLOW_ACTION_DROP:
> >>>> + case FLOW_ACTION_PIPE:
> >>>> return dpaa2_switch_cls_flower_replace_acl(block, cls);
> >>>> case FLOW_ACTION_MIRRED:
> >>>> return
> >>>> dpaa2_switch_cls_flower_replace_mirror(block,
> >>>> cls); diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> >>>> b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> >>>> index faba0f857cd9..5908ad4d0170 100644
> >>>> --- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> >>>> +++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> >>>> @@ -642,6 +642,11 @@ ice_eswitch_tc_parse_action(struct
> >>>> ice_tc_flower_fltr *fltr,
> >>>>
> >>>> break;
> >>>>
> >>>> + /* Just ignore GACT with pipe action to let this action
> >>>> + count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported
> >>>> action in
> >>> switchdev mode");
> >>>> return -EINVAL;
> >>>> diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
> >>>> b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
> >>>> index e64318c110fd..fc05897adb70 100644
> >>>> --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
> >>>> +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
> >>>> @@ -450,6 +450,11 @@ static int otx2_tc_parse_actions(struct
> >>>> otx2_nic
> >>> *nic,
> >>>> case FLOW_ACTION_MARK:
> >>>> mark = act->mark;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> return -EOPNOTSUPP;
> >>>> }
> >>>> diff --git
> >>>> a/drivers/net/ethernet/marvell/prestera/prestera_flower.c
> >>>> b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
> >>>> index 91a478b75cbf..9686ed086e35 100644
> >>>> --- a/drivers/net/ethernet/marvell/prestera/prestera_flower.c
> >>>> +++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
> >>>> @@ -126,6 +126,11 @@ static int
> >>>> prestera_flower_parse_actions(struct
> >>> prestera_flow_block *block,
> >>>> if (err)
> >>>> return err;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
> >>>> pr_err("Unsupported action\n"); diff --git
> >>>> a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
> >>>> b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
> >>>> index 81afd5ee3fbf..91e4d3fcc756 100644
> >>>> --- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
> >>>> +++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
> >>>> @@ -344,6 +344,11 @@ mtk_flow_offload_replace(struct mtk_eth
> *eth,
> >>> struct flow_cls_offload *f)
> >>>> data.pppoe.sid = act->pppoe.sid;
> >>>> data.pppoe.num++;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> return -EOPNOTSUPP;
> >>>> }
> >>>> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
> >>>> b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
> >>>> index b08339d986d5..231660cb1daf 100644
> >>>> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
> >>>> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
> >>>> @@ -544,6 +544,12 @@ mlx5e_rep_indr_replace_act(struct
> >>> mlx5e_rep_priv *rpriv,
> >>>> if (!act->offload_action)
> >>>> continue;
> >>>>
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + if (action->id == FLOW_ACTION_PIPE)
> >>>> + continue;
> >>>> +
> >>>> if (!act->offload_action(priv, fl_act, action))
> >>>> add = true;
> >>>> }
> >>>> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> >>>> b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> >>>> index 3782f0097292..adac2ce9b24f 100644
> >>>> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> >>>> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> >>>> @@ -3853,6 +3853,11 @@ parse_tc_actions(struct
> >>>> mlx5e_tc_act_parse_state *parse_state,
> >>>>
> >>>> flow_action_for_each(i, _act, &flow_action_reorder) {
> >>>> act = *_act;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + if (act->id == FLOW_ACTION_PIPE)
> >>>> + continue;
> >>>> tc_act = mlx5e_tc_act_get(act->id, ns_type);
> >>>> if (!tc_act) {
> >>>> NL_SET_ERR_MSG_MOD(extack, "Not implemented
> >>>> offload action"); diff --git
> >>>> a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
> >>>> b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
> >>>> index e91fb205e0b4..9270bf9581c7 100644
> >>>> --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
> >>>> +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
> >>>> @@ -266,6 +266,11 @@ static int
> >>>> mlxsw_sp_flower_parse_actions(struct
> >>> mlxsw_sp *mlxsw_sp,
> >>>> return err;
> >>>> break;
> >>>> }
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
> >>>> dev_err(mlxsw_sp->bus_info->dev,
> >>>> "Unsupported action\n"); diff --git
> >>>> a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
> >>>> b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
> >>>> index bd6bd380ba34..e32f5b5d1e95 100644
> >>>> --- a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
> >>>> +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
> >>>> @@ -692,6 +692,10 @@ static int sparx5_tc_flower_replace(struct
> >>> net_device *ndev,
> >>>> break;
> >>>> case FLOW_ACTION_GOTO:
> >>>> /* Links between VCAPs will be added later
> >>>> */
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(fco->common.extack,
> >>>> diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c
> >>>> b/drivers/net/ethernet/mscc/ocelot_flower.c
> >>>> index 7c0897e779dc..b8e01af0fb48 100644
> >>>> --- a/drivers/net/ethernet/mscc/ocelot_flower.c
> >>>> +++ b/drivers/net/ethernet/mscc/ocelot_flower.c
> >>>> @@ -492,6 +492,11 @@ static int ocelot_flower_parse_action(struct
> >>>> ocelot
> >>> *ocelot, int port,
> >>>> }
> >>>> filter->type = OCELOT_PSFP_FILTER_OFFLOAD;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(extack, "Cannot offload action");
> >>>> return -EOPNOTSUPP; diff --git
> >>>> a/drivers/net/ethernet/netronome/nfp/flower/action.c
> >>>> b/drivers/net/ethernet/netronome/nfp/flower/action.c
> >>>> index 2b383d92d7f5..57fd83b8e54a 100644
> >>>> --- a/drivers/net/ethernet/netronome/nfp/flower/action.c
> >>>> +++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
> >>>> @@ -1209,6 +1209,11 @@ nfp_flower_loop_action(struct nfp_app
> *app,
> >>> const struct flow_action_entry *act,
> >>>> if (err)
> >>>> return err;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this action
> >>>> + count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> /* Currently we do not handle any other actions. */
> >>>> NL_SET_ERR_MSG_MOD(extack, "unsupported offload:
> >>>> unsupported action in action list"); diff --git
> >>>> a/drivers/net/ethernet/qlogic/qede/qede_filter.c
> >>>> b/drivers/net/ethernet/qlogic/qede/qede_filter.c
> >>>> index 3010833ddde3..69110d5978d8 100644
> >>>> --- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
> >>>> +++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
> >>>> @@ -1691,6 +1691,11 @@ static int qede_parse_actions(struct
> >>>> qede_dev
> >>> *edev,
> >>>> return -EINVAL;
> >>>> }
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> return -EINVAL;
> >>>> }
> >>>> diff --git a/drivers/net/ethernet/sfc/tc.c
> >>>> b/drivers/net/ethernet/sfc/tc.c index deeaab9ee761..7256bbcdcc59
> >>>> 100644
> >>>> --- a/drivers/net/ethernet/sfc/tc.c
> >>>> +++ b/drivers/net/ethernet/sfc/tc.c
> >>>> @@ -494,6 +494,11 @@ static int efx_tc_flower_replace(struct
> >>>> efx_nic
> >>> *efx,
> >>>> }
> >>>> *act = save;
> >>>> break;
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_FMT_MOD(extack, "Unhandled
> action %u",
> >>>> fa->id); diff --git
> >>>> a/drivers/net/ethernet/ti/cpsw_priv.c
> >>>> b/drivers/net/ethernet/ti/cpsw_priv.c
> >>>> index 758295c898ac..c0ac58db64d4 100644
> >>>> --- a/drivers/net/ethernet/ti/cpsw_priv.c
> >>>> +++ b/drivers/net/ethernet/ti/cpsw_priv.c
> >>>> @@ -1492,6 +1492,11 @@ static int
> >>>> cpsw_qos_configure_clsflower(struct
> >>>> cpsw_priv *priv, struct flow_cls_
> >>>>
> >>>> return cpsw_qos_clsflower_add_policer(priv,
> >>>> extack, cls,
> >>>>
> >>>> act->police.rate_pkt_ps);
> >>>> + /* Just ignore GACT with pipe action to let this
> >>>> + action count the
> >>> packets.
> >>>> + * The NIC doesn't have to process this action
> >>>> + */
> >>>> + case FLOW_ACTION_PIPE:
> >>>> + break;
> >>>> default:
> >>>> NL_SET_ERR_MSG_MOD(extack, "Action not supported");
> >>>> return -EOPNOTSUPP; diff --git
> >>>> a/net/sched/act_gact.c b/net/sched/act_gact.c index
> >>>> 62d682b96b88..82d1371e251e 100644
> >>>> --- a/net/sched/act_gact.c
> >>>> +++ b/net/sched/act_gact.c
> >>>> @@ -250,15 +250,14 @@ static int tcf_gact_offload_act_setup(struct
> >>> tc_action *act, void *entry_data,
> >>>> } else if (is_tcf_gact_goto_chain(act)) {
> >>>> entry->id = FLOW_ACTION_GOTO;
> >>>> entry->chain_index =
> >>>> tcf_gact_goto_chain_index(act);
> >>>> + } else if (is_tcf_gact_pipe(act)) {
> >>>> + entry->id = FLOW_ACTION_PIPE;
> >>>> } else if (is_tcf_gact_continue(act)) {
> >>>> NL_SET_ERR_MSG_MOD(extack, "Offload of \"continue\"
> >>> action is not supported");
> >>>> return -EOPNOTSUPP;
> >>>> } else if (is_tcf_gact_reclassify(act)) {
> >>>> NL_SET_ERR_MSG_MOD(extack, "Offload of \"reclassify\"
> >>> action is not supported");
> >>>> return -EOPNOTSUPP;
> >>>> - } else if (is_tcf_gact_pipe(act)) {
> >>>> - NL_SET_ERR_MSG_MOD(extack, "Offload of \"pipe\"
> action is
> >>> not supported");
> >>>> - return -EOPNOTSUPP;
> >>>> } else {
> >>>> NL_SET_ERR_MSG_MOD(extack, "Unsupported
> >>>> generic action
> >>> offload");
> >>>> return -EOPNOTSUPP; @@ -275,6 +274,8 @@
> >>>> static int tcf_gact_offload_act_setup(struct tc_action *act, void
> *entry_data,
> >>>> fl_action->id = FLOW_ACTION_TRAP;
> >>>> else if (is_tcf_gact_goto_chain(act))
> >>>> fl_action->id = FLOW_ACTION_GOTO;
> >>>> + else if (is_tcf_gact_pipe(act))
> >>>> + fl_action->id = FLOW_ACTION_PIPE;
> >>>> else
> >>>> return -EOPNOTSUPP;
> >>>> }
> >>>> --
> >>>> 2.30.2
> >>>>
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