> From: Brown, Aaron F
> Sent: Friday, April 13, 2018 7:25 PM
> To: 'Vinicius Costa Gomes' <[email protected]>; intel-wired-
> [email protected]
> Cc: Gomes, Vinicius <[email protected]>; Kirsher, Jeffrey T
> <[email protected]>; [email protected]; Sanchez-Palencia,
> Jesus <[email protected]>
> Subject: RE: [next-queue PATCH v7 10/10] igb: Add support for adding
> offloaded clsflower filters
>
> > From: [email protected] [mailto:netdev-
> > [email protected]] On Behalf Of Vinicius Costa Gomes
> > Sent: Tuesday, April 10, 2018 10:50 AM
> > To: [email protected]
> > Cc: Gomes, Vinicius <[email protected]>; Kirsher, Jeffrey T
> > <[email protected]>; [email protected]; Sanchez-Palencia,
> > Jesus <[email protected]>
> > Subject: [next-queue PATCH v7 10/10] igb: Add support for adding
> offloaded
> > clsflower filters
> >
> > This allows filters added by tc-flower and specifying MAC addresses,
> > Ethernet types, and the VLAN priority field, to be offloaded to the
> > controller.
> >
> > This reuses most of the infrastructure used by ethtool, but clsflower
> > filters are kept in a separated list, so they are invisible to
> > ethtool.
> >
> > To setup clsflower offloading:
> >
> > $ tc qdisc replace dev eth0 handle 100: parent root mqprio \
> > num_tc 3 map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 \
> > queues 1@0 1@1 2@2 hw 0
> > (clsflower offloading depends on the netword driver to be configured
> > with multiple traffic classes, we use mqprio's 'num_tc' parameter to
> > set it to 3)
> >
> > $ tc qdisc add dev eth0 ingress
> >
> > Examples of filters:
> >
> > $ tc filter add dev eth0 parent ffff: flower \
> > dst_mac aa:aa:aa:aa:aa:aa \
> > hw_tc 2 skip_sw
> > (just a simple filter filtering for the destination MAC address and
> > steering that traffic to queue 2)
> >
> > $ tc filter add dev enp2s0 parent ffff: proto 0x22f0 flower \
> > src_mac cc:cc:cc:cc:cc:cc \
> > hw_tc 1 skip_sw
> > (as the i210 doesn't support steering traffic based on the source
> > address alone, we need to use another steering traffic, in this case
> > we are using the ethernet type (0x22f0) to steer traffic to queue 1)
> >
> > Signed-off-by: Vinicius Costa Gomes <[email protected]>
> > ---
> > drivers/net/ethernet/intel/igb/igb.h | 2 +
> > drivers/net/ethernet/intel/igb/igb_main.c | 188
> > +++++++++++++++++++++-
> > 2 files changed, 188 insertions(+), 2 deletions(-)
>
> Tested by: Aaron Brown <[email protected]>
Tested-by: Aaron Brown <[email protected]>
