Eli Britstein 97417f6182 net/mlx5e: Fix GRE key by controlling port tunnel entropy calculation ... Flow entropy is calculated on the inner packet headers and used for flow distribution in processing, routing etc. For GRE-type encapsulations the entropy value is placed in the eight LSB of the key field in the GRE header as defined in NVGRE RFC 7637. For UDP based encapsulations the entropy value is placed in the source port of the UDP header. The hardware may support entropy calculation specifically for GRE and for all tunneling protocols. With commit df2ef3bff1 ("net/mlx5e: Add GRE protocol offloading") GRE is offloaded, but the hardware is configured by default to calculate flow entropy so packets transmitted on the wire have a wrong key. To support UDP based tunnels (i.e VXLAN), GRE (i.e. no flow entropy) and NVGRE (i.e. with flow entropy) the hardware behaviour must be controlled by the driver. Ensure port entropy calculation is enabled for offloaded VXLAN tunnels and disable port entropy calculation in the presence of offloaded GRE tunnels by monitoring the presence of entropy enabling tunnels (i.e VXLAN) and entropy disabing tunnels (i.e GRE). Fixes: df2ef3bff1 ("net/mlx5e: Add GRE protocol offloading") Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>		2019-02-22 13:38:23 -08:00
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accel.h
cmd.h
cq.h	net/mlx5e: Use CQE padding for Ethernet CQs	2018-12-11 14:52:20 -08:00
device.h	net/mlx5: Add host params change event	2019-02-14 12:14:42 -08:00
doorbell.h
driver.h	net/mlx5: E-Switch, Consider ECPF vport depends on eswitch ownership	2019-02-15 17:25:58 -08:00
eq.h	net/mlx5: EQ, Introduce atomic notifier chain subscription API	2018-11-26 13:39:33 -08:00
eswitch.h	net/mlx5: E-Switch, Centralize repersentor reg/unreg to eswitch driver	2019-02-15 17:25:58 -08:00
fs.h	net/mlx5: Support extended destination format in flow steering command	2018-12-10 14:00:08 -08:00
fs_helpers.h
mlx5_ifc.h	net/mlx5: Introduce tunnel entropy control in PCMR register	2019-02-22 13:38:23 -08:00
mlx5_ifc_fpga.h
port.h	net/mlx5e: Fix GRE key by controlling port tunnel entropy calculation	2019-02-22 13:38:23 -08:00
qp.h	net/mlx5: Add interface to hold and release core resources	2018-11-12 22:20:29 +02:00
transobj.h	net/mlx5: Move SRQ functions to RDMA part	2018-12-04 09:14:30 +02:00
vport.h	net/mlx5: E-Switch, Consider ECPF vport depends on eswitch ownership	2019-02-15 17:25:58 -08:00