bonding: Update layer2 and layer2+3 hash formula documentation

When using layer2 or layer2+3 hash, only the 5th byte of the MAC
addresses is used.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gal Pressman 2022-04-06 16:54:20 +03:00 committed by David S. Miller
parent 2105f700b5
commit 2cd1881b98

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@ -894,7 +894,7 @@ xmit_hash_policy
Uses XOR of hardware MAC addresses and packet type ID
field to generate the hash. The formula is
hash = source MAC XOR destination MAC XOR packet type ID
hash = source MAC[5] XOR destination MAC[5] XOR packet type ID
slave number = hash modulo slave count
This algorithm will place all traffic to a particular
@ -910,7 +910,7 @@ xmit_hash_policy
Uses XOR of hardware MAC addresses and IP addresses to
generate the hash. The formula is
hash = source MAC XOR destination MAC XOR packet type ID
hash = source MAC[5] XOR destination MAC[5] XOR packet type ID
hash = hash XOR source IP XOR destination IP
hash = hash XOR (hash RSHIFT 16)
hash = hash XOR (hash RSHIFT 8)