sfc: detect ef100 MAE admin privilege/capability at probe time

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One PCIe function per network port (more precisely, per m-port group) is
 responsible for configuring the Match-Action Engine which performs
 switching and packet modification in the slice to support flower/OVS
 offload.  The GRP_MAE bit in the privilege mask indicates whether a
 given function has this capability.
At probe time, call MCDIs to read the calling function's privilege mask,
 and store the GRP_MAE bit in a new ef100_nic_data member.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Edward Cree 2022-07-20 19:29:26 +01:00 • committed by David S. Miller

parent 8ca353da9c

commit 95287e1b4e

4 changed files with 55 additions and 0 deletions

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7

drivers/net/ethernet/sfc/ef100_nic.c

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1

drivers/net/ethernet/sfc/ef100_nic.h

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46

drivers/net/ethernet/sfc/mcdi.c

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1

drivers/net/ethernet/sfc/mcdi.h

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