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author | Ido Schimmel <idosch@OSS.NVIDIA.COM> | 2021-05-17 21:15:22 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2021-05-18 23:27:32 +0300 |
commit | ed13923f980ef84dde0b9010b9e09052dc31a909 (patch) | |
tree | c93208287485abcfd73fdb30abb374b70cb5f239 /ipc | |
parent | b95b6e072a92042320fad99de658008cc0beb3b0 (diff) | |
download | linux-ed13923f980ef84dde0b9010b9e09052dc31a909.tar.xz |
ipv6: Add a sysctl to control multipath hash fields
A subsequent patch will add a new multipath hash policy where the packet
fields used for multipath hash calculation are determined by user space.
This patch adds a sysctl that allows user space to set these fields.
The packet fields are represented using a bitmask and are common between
IPv4 and IPv6 to allow user space to use the same numbering across both
protocols. For example, to hash based on standard 5-tuple:
# sysctl -w net.ipv6.fib_multipath_hash_fields=0x0037
net.ipv6.fib_multipath_hash_fields = 0x0037
To avoid introducing holes in 'struct netns_sysctl_ipv6', move the
'bindv6only' field after the multipath hash fields.
The kernel rejects unknown fields, for example:
# sysctl -w net.ipv6.fib_multipath_hash_fields=0x1000
sysctl: setting key "net.ipv6.fib_multipath_hash_fields": Invalid argument
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions