netdev - Re: [PATCH 6/6] [net-next]net: i40e: Enable cloud filters in i40e via tc/flower classifier

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 1 Aug 2017 06:56:41 -0400
From:   Jamal Hadi Salim <jhs@...atatu.com>
To:     Amritha Nambiar <amritha.nambiar@...el.com>,
        intel-wired-lan@...ts.osuosl.org, jeffrey.t.kirsher@...el.com
Cc:     alexander.h.duyck@...el.com, kiran.patil@...el.com,
        netdev@...r.kernel.org, mitch.a.williams@...el.com,
        alexander.duyck@...il.com, neerav.parikh@...el.com,
        sridhar.samudrala@...el.com, carolyn.wyborny@...el.com,
        Or Gerlitz <gerlitz.or@...il.com>
Subject: Re: [PATCH 6/6] [net-next]net: i40e: Enable cloud filters in i40e via
 tc/flower classifier

On 17-07-31 08:38 PM, Amritha Nambiar wrote:
> This patch enables tc-flower based hardware offloads. tc/flower
> filter provided by the kernel is configured as driver specific
> cloud filter. The patch implements functions and admin queue
> commands needed to support cloud filters in the driver and
> adds cloud filters to configure these tc-flower filters.
> 
> The only action supported is to redirect packets to a traffic class
> on the same device.
> 
> # 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_mac 3c:fd:fe:a0:d6:70 skip_sw indev eth0\
>    action mirred ingress redirect dev eth0 tc 0
> 

Out of curiosity - did you need to say "indev eth0" there?
Also: Is it possible to add an skbmark? Example something like
these that directs two flows to the same queue but different
skb marks:

# tc filter add dev eth0 protocol ip parent ffff: \
   prio 2 flower dst_ip 192.168.3.5/32 \
   ip_proto udp dst_port 2a skip_sw \
   action skbedit mark 11 \
   action mirred ingress redirect dev eth0 tcqueue 1

# tc filter add dev eth0 protocol ip parent ffff: \
     prio 1 flower dst_mac 3c:fd:fe:a0:d6:70 skip_sw \
     action skbedit mark 12 \
     action mirred ingress redirect dev eth0 tcqueue 1

cheers,
jamal