hv_netvsc: Add ethtool handler to set and get TCP hash levels

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The patch supports the options to switch TCP hash level between
L3 and L4 by ethtool command. TCP over IPv4 and v6 can be set
differently. The default hash level is L4. We currently only
allow switching TX hash level from within the guests.

For example, for TCP over IPv4 on eth0:
To include TCP port numbers in hashing:
	ethtool -N eth0 rx-flow-hash tcp4 sdfn
To exclude TCP port numbers in hashing:
	ethtool -N eth0 rx-flow-hash tcp4 sd
To show TCP hash level:
	ethtool -n eth0 rx-flow-hash tcp4

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Haiyang Zhang 2017-10-06 08:33:58 -07:00 • committed by David S. Miller

parent 486e398105

commit 0518ec4f9d

1 changed files with 24 additions and 1 deletions

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drivers/net/hyperv/netvsc_drv.c

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