vbhadram d17a9e4c63 nvethernetrm: mgbe: add support for RSS ...

This change programs 40byte Hash key and indirection table
(Hash table) (has DMA channel numbers) in MAC
Once packet received by MAC - 4-tuples will be extracted
from the packet and given to RSS hash engine. Hash function
will generate hash value by using 40byte key.
From hash value LSB bits used as index to RSS lookup table to
find out DMA channel number. If there is a match - packet is
routed to corresponding DMA channel. If there is no match -
packet will be dropped and error will be returned in receive desc.

Bug 200565647

Change-Id: Iffbb5a452f03278b3ba0bc061f09b43c7c994289
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2263398
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>

2024-02-21 16:31:59 +05:30

2.2 KiB

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