netdev - Re: [RFC PATCH v3 0/7] tc-flower based cloud filters in i40e

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Date:   Wed, 13 Sep 2017 12:12:12 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Amritha Nambiar <amritha.nambiar@...el.com>
Cc:     intel-wired-lan@...ts.osuosl.org, jeffrey.t.kirsher@...el.com,
        alexander.h.duyck@...el.com, netdev@...r.kernel.org
Subject: Re: [RFC PATCH v3 0/7] tc-flower based cloud filters in i40e

Wed, Sep 13, 2017 at 11:59:13AM CEST, amritha.nambiar@...el.com wrote:
>This patch series enables configuring cloud filters in i40e
>using the tc-flower classifier. The only tc-filter action
>supported is to redirect packets to a traffic class on the
>same device. The mirror/redirect action is extended to
>accept a traffic class to achieve this.
>
>The cloud filters are added for a VSI and are cleaned up when
>the VSI is deleted. The filters that match on L4 ports needs
>enhanced admin queue functions with big buffer support for
>extended fields in cloud filter commands.
>
>Example:
># tc qdisc add dev eth0 ingress
>
># ethtool -K eth0 hw-tc-offload on
>
># tc filter add dev eth0 protocol ip parent ffff: prio 1 flower\
>  dst_ip 192.168.1.1/32 ip_proto udp dst_port 22\
>  skip_sw action mirred ingress redirect dev eth0 tclass 1
>
># tc filter show dev eth0 parent ffff:
>filter protocol ip pref 1 flower chain 0
>filter protocol ip pref 1 flower chain 0 handle 0x1
>  eth_type ipv4
>  ip_proto udp
>  dst_ip 192.168.1.1
>  dst_port 22
>  skip_sw
>  in_hw
>        action order 1: mirred (Ingress Redirect to device eth0) stolen tclass 1
>        index 7 ref 1 bind 1
>
>v3: Added an extra patch to clean up white-space noise. Cleaned up
>some lengthy function names. Used __be32 array for ipv6 address.
>Used macro for IP version. Minor formatting changes.
>
>---
>
>Amritha Nambiar (7):
>      tc_mirred: Clean up white-space noise
>      sched: act_mirred: Traffic class option for mirror/redirect action
>      i40e: Map TCs with the VSI seids
>      i40e: Cloud filter mode for set_switch_config command
>      i40e: Admin queue definitions for cloud filters
>      i40e: Clean up of cloud filters
>      i40e: Enable cloud filters via tc-flower

Would be good to use get_maintainers script and cc people if you want
comments.