Messages in this thread |  | | From | Michael Chan <> | Date | Sat, 10 Dec 2022 21:07:32 -0800 | Subject | Re: [RFC net-next v6 2/2] bnxt: Use generic HBH removal helper in tx path |
| |
On Fri, Dec 9, 2022 at 8:16 PM Coco Li <lixiaoyan@google.com> wrote: > > Eric Dumazet implemented Big TCP that allowed bigger TSO/GRO packet sizes > for IPv6 traffic. See patch series: > 'commit 89527be8d8d6 ("net: add IFLA_TSO_{MAX_SIZE|SEGS} attributes")' > > This reduces the number of packets traversing the networking stack and > should usually improves performance. However, it also inserts a > temporary Hop-by-hop IPv6 extension header. > > Using the HBH header removal method in the previous patch, the extra header > be removed in bnxt drivers to allow it to send big TCP packets (bigger > TSO packets) as well. > > Tested: > Compiled locally > > To further test functional correctness, update the GSO/GRO limit on the > physical NIC: > > ip link set eth0 gso_max_size 181000 > ip link set eth0 gro_max_size 181000 > > Note that if there are bonding or ipvan devices on top of the physical > NIC, their GSO sizes need to be updated as well. > > Then, IPv6/TCP packets with sizes larger than 64k can be observed. > > Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com> Tested-by: Michael Chan <michael.chan@broadcom.com>
Thanks. [unhandled content-type:application/pkcs7-signature] |  |