On Wed, 8 Jun 2016 16:16:01 -0700 Sridhar Samudrala <sridhar.samudr...@intel.com> wrote:
> On devices that support TC U32 offloads, these flags enable a filter to be > added only to HW or only to SW. skip_sw and skip_hw are mutually exclusive > flags. By default without any flags, the filter is added to both HW and SW, > but no error checks are done in case of failure to add to HW. > With skip-sw, failure to add to HW is treated as an error. > > Here is a sample script that adds 2 filters, one with skip_sw and the other > with skip_hw flag. > > # add ingress qdisc > tc qdisc add dev p4p1 ingress > > # enable hw tc offload. > ethtool -K p4p1 hw-tc-offload on > > # add u32 filter with skip-sw flag. > tc filter add dev p4p1 parent ffff: protocol ip prio 99 \ > handle 800:0:1 u32 ht 800: flowid 800:1 \ > skip-sw \ > match ip src 192.168.1.0/24 \ > action drop > > # add u32 filter with skip-hw flag. > tc filter add dev p4p1 parent ffff: protocol ip prio 99 \ > handle 800:0:2 u32 ht 800: flowid 800:2 \ > skip-hw \ > match ip src 192.168.2.0/24 \ > action drop > > Signed-off-by: Sridhar Samudrala <sridhar.samudr...@intel.com> Applied, then updated, already needed to cleanup some style issues in f_u32 anyway.
