nfp: flower: implement host cmsg handler for LAG

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Adds the control message handler to synchronize offloaded group config
with that of the kernel. Such messages are sent from fw to driver and
feature the following 3 flags:

- Data: an attached cmsg could not be processed - store for retransmission
- Xon: FW can accept new messages - retransmit any stored cmsgs
- Sync: full sync requested so retransmit all kernel LAG group info

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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John Hurley 2018-05-23 19:22:54 -07:00 • committed by David S. Miller

parent bb9a8d0311

commit 2e1cc5226b

3 changed files with 105 additions and 2 deletions

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8

drivers/net/ethernet/netronome/nfp/flower/cmsg.c

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95

drivers/net/ethernet/netronome/nfp/flower/lag_conf.c

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4

drivers/net/ethernet/netronome/nfp/flower/main.h

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