linux-kernel - Re: [PATCH net-next] net: flow_offload: add support for ARP frame matching

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Message-ID: <4f500c0d1334d09713842aa1c4def71e5ece7e3c.camel@microchip.com>
Date:   Fri, 4 Nov 2022 13:27:36 +0100
From:   Steen Hegelund <steen.hegelund@...rochip.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
CC:     Louis Peens <louis.peens@...igine.com>,
        Baowen Zheng <baowen.zheng@...igine.com>,
        Simon Horman <simon.horman@...igine.com>,
        "Tony Nguyen" <anthony.l.nguyen@...el.com>,
        Wojciech Drewek <wojciech.drewek@...el.com>,
        Maksym Glubokiy <maksym.glubokiy@...ision.eu>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <UNGLinuxDriver@...rochip.com>,
        "Horatiu Vultur" <horatiu.vultur@...rochip.com>
Subject: Re: [PATCH net-next] net: flow_offload: add support for ARP frame
 matching

Sorry: 

Please ignore this.  The commit message had not been updated...

BR
Steen


On Fri, 2022-11-04 at 13:19 +0100, Steen Hegelund wrote:
> flow_rule_match_arp allows drivers to dissect APR frames
> 
> Signed-off-by: Steen Hegelund <steen.hegelund@...rochip.com>
> ---
>  include/net/flow_offload.h | 6 ++++++
>  net/core/flow_offload.c    | 7 +++++++
>  2 files changed, 13 insertions(+)
> 
> diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
> index 7a60bc6d72c9..0400a0ac8a29 100644
> --- a/include/net/flow_offload.h
> +++ b/include/net/flow_offload.h
> @@ -32,6 +32,10 @@ struct flow_match_vlan {
>         struct flow_dissector_key_vlan *key, *mask;
>  };
>  
> +struct flow_match_arp {
> +       struct flow_dissector_key_arp *key, *mask;
> +};
> +
>  struct flow_match_ipv4_addrs {
>         struct flow_dissector_key_ipv4_addrs *key, *mask;
>  };
> @@ -98,6 +102,8 @@ void flow_rule_match_vlan(const struct flow_rule *rule,
>                           struct flow_match_vlan *out);
>  void flow_rule_match_cvlan(const struct flow_rule *rule,
>                            struct flow_match_vlan *out);
> +void flow_rule_match_arp(const struct flow_rule *rule,
> +                        struct flow_match_arp *out);
>  void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
>                                 struct flow_match_ipv4_addrs *out);
>  void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
> diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c
> index abe423fd5736..acfc1f88ea79 100644
> --- a/net/core/flow_offload.c
> +++ b/net/core/flow_offload.c
> @@ -97,6 +97,13 @@ void flow_rule_match_cvlan(const struct flow_rule *rule,
>  }
>  EXPORT_SYMBOL(flow_rule_match_cvlan);
>  
> +void flow_rule_match_arp(const struct flow_rule *rule,
> +                        struct flow_match_arp *out)
> +{
> +       FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ARP, out);
> +}
> +EXPORT_SYMBOL(flow_rule_match_arp);
> +
>  void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
>                                 struct flow_match_ipv4_addrs *out)
>  {