diff options
| author |   Ido Schimmel <idosch@OSS.NVIDIA.COM> | 2021-05-17 21:15:23 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-05-18 13:27:32 -0700 |
| commit | 73c2c5cbb15a8a82d5bea52594b0beb038963bcc (patch) | |
| tree | 0ed851c3888c527b7e641f8b052d0af130f1443b /net/ipv6/sysctl_net_ipv6.c | |
| parent | ipv6: Add a sysctl to control multipath hash fields (diff) | |
| download | linux-dev-73c2c5cbb15a8a82d5bea52594b0beb038963bcc.tar.xz linux-dev-73c2c5cbb15a8a82d5bea52594b0beb038963bcc.zip | |
ipv6: Add custom multipath hash policy
Add a new multipath hash policy where the packet fields used for hash
calculation are determined by user space via the
fib_multipath_hash_fields sysctl that was introduced in the previous
patch.
The current set of available packet fields includes both outer and inner
fields, which requires two invocations of the flow dissector. Avoid
unnecessary dissection of the outer or inner flows by skipping
dissection if none of the outer or inner fields are required.
In accordance with the existing policies, when an skb is not available,
packet fields are extracted from the provided flow key. In which case,
only outer fields are considered.
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 'net/ipv6/sysctl_net_ipv6.c')
| -rw-r--r-- | net/ipv6/sysctl_net_ipv6.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index ce23c8f7ceb3..160bea5db973 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -23,6 +23,7 @@ #endif static int two = 2; +static int three = 3; static int flowlabel_reflect_max = 0x7; static int auto_flowlabels_max = IP6_AUTO_FLOW_LABEL_MAX; static u32 rt6_multipath_hash_fields_all_mask = @@ -152,7 +153,7 @@ static struct ctl_table ipv6_table_template[] = { .mode = 0644, .proc_handler = proc_rt6_multipath_hash_policy, .extra1 = SYSCTL_ZERO, - .extra2 = &two, + .extra2 = &three, }, { .procname = "fib_multipath_hash_fields", |