On Mon, Dec 4, 2017 at 1:12 PM, Michael Chan <michael.c...@broadcom.com> wrote: > Introduce NETIF_F_GRO_HW feature flag for NICs that support hardware GRO. W
cool > --- a/Documentation/networking/netdev-features.txt > +++ b/Documentation/networking/netdev-features.txt > @@ -163,3 +163,10 @@ This requests that the NIC receive all possible frames, > including errored > frames (such as bad FCS, etc). This can be helpful when sniffing a link with > bad packets on it. Some NICs may receive more packets if also put into > normal > PROMISC mode. > + > +* rx-gro-hw > + > +This requests that the NIC enables Hardware GRO (generic receive offload). > +Hardware GRO is basically the exact reverse of TSO, and is generally > +stricter than Hardware LRO. A packet stream merged by Hardware GRO must > +be re-segmentable by GSO or TSO back to the exact packet stream. Can you please add here a 1-2 liner with the grocery store list of requirements for that matter or pointer to another kernel doc spot where this is defined.
