From: Jiri Pirko <j...@mellanox.com>
Ido says:
Offload indication for IPv4 routes is currently set in the FIB info's
flags. When multipath routes are employed, this can lead to a route being
marked as offloaded although only one of its nexthops is actually
offloaded.
Instead, this patchset aims to proivde a higher resolution for the offload
indication and report it on a per-nexthop basis.
Example output from patched iproute:
$ ip route show 192.168.200.0/24
192.168.200.0/24
nexthop via 192.168.100.2 dev enp3s0np7 weight 1 offload
nexthop via 192.168.101.3 dev enp3s0np8 weight 1
And once the second gateway is resolved:
$ ip route show 192.168.200.0/24
192.168.200.0/24
nexthop via 192.168.100.2 dev enp3s0np7 weight 1 offload
nexthop via 192.168.101.3 dev enp3s0np8 weight 1 offload
First patch teaches the kernel to look for the offload indication in the
nexthop flags. Patches 2-5 adjust current capable drivers to provide
offload indication on a per-nexthop basis. Last patch removes no longer
used functions to set offload indication in the FIB info's flags.
Ido Schimmel (6):
ipv4: fib: Set offload indication according to nexthop flags
rocker: Provide offload indication using nexthop flags
mlxsw: spectrum_router: Provide offload indication using nexthop flags
mlxsw: spectrum_router: Don't check state when refreshing offload
indication
mlxsw: spectrum_router: Refresh offload indication upon group refresh
ipv4: fib: Remove unused functions
.../net/ethernet/mellanox/mlxsw/spectrum_router.c | 73 ++++++++++++++++++----
drivers/net/ethernet/rocker/rocker_ofdpa.c | 6 +-
include/net/ip_fib.h | 13 ----
net/ipv4/fib_semantics.c | 2 +
4 files changed, 65 insertions(+), 29 deletions(-)
--
2.9.3
