diff options
| author |   Ido Schimmel <idosch@mellanox.com> | 2018-01-09 16:40:25 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-01-10 15:14:44 -0500 |
| commit | d7dedee184e775f77d321cfa1c660a7680cf6588 (patch) | |
| tree | 7d59d50b661562ccf2cfad936be59b37f7f69b99 /net/ipv6/ip6_fib.c | |
| parent | vhost_net: batch used ring update in rx (diff) | |
| download | linux-dev-d7dedee184e775f77d321cfa1c660a7680cf6588.tar.xz linux-dev-d7dedee184e775f77d321cfa1c660a7680cf6588.zip | |
ipv6: Calculate hash thresholds for IPv6 nexthops
Before we convert IPv6 to use hash-threshold instead of modulo-N, we
first need each nexthop to store its region boundary in the hash
function's output space.
The boundary is calculated by dividing the output space equally between
the different active nexthops. That is, nexthops that are not dead or
linkdown.
The boundaries are rebalanced whenever a nexthop is added or removed to
a multipath route and whenever a nexthop becomes active or inactive.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_fib.c')
| -rw-r--r-- | net/ipv6/ip6_fib.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index b5f19703fca6..e31118f417b4 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -796,12 +796,6 @@ insert_above: return ln; } -static bool rt6_qualify_for_ecmp(struct rt6_info *rt) -{ - return (rt->rt6i_flags & (RTF_GATEWAY|RTF_ADDRCONF|RTF_DYNAMIC)) == - RTF_GATEWAY; -} - static void fib6_copy_metrics(u32 *mp, const struct mx6_config *mxc) { int i; @@ -991,6 +985,7 @@ next_iter: rt6i_nsiblings++; } BUG_ON(rt6i_nsiblings != rt->rt6i_nsiblings); + rt6_multipath_rebalance(temp_sibling); } /* @@ -1672,6 +1667,7 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn, sibling->rt6i_nsiblings--; rt->rt6i_nsiblings = 0; list_del_init(&rt->rt6i_siblings); + rt6_multipath_rebalance(next_sibling); } /* Adjust walkers */ |