diff options
| author |   Neale Ranns <nranns@cisco.com> | 2017-03-23 06:46:01 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-03-29 13:00:52 +0000 |
| commit | 04a75e3230ab71248fc29a56b9f64bdaee0c17ac (patch) | |
| tree | 85977ecfdf1c4002451cbbcf075694ae1ba1173c /src/vnet/ip/ip4_source_check.c | |
| parent | 9a69a6095f67b8979a02f128f44e449889454273 (diff) | |
Mtrie optimisations
1 - make the default route non-special, i.e. like any other less specific route. Consequently, all buckets have a valid valid index of either a leaf or a ply. Checks for special indeices in the data-path can thus be removed.
2 - since all leaves are now 'real' i.e. they represent a real load-balance object, to tell if a ply slot is 'empty' requeirs chekcing that the prefix length of the leaf occupying the slot is slot than the minium value for that ply.
3 - when removing a leaf find the cover first, then recurse down the ply and replace the old leaf with the cover. This saves us a ply walk.
Change-Id: Idd523019e8bb1b6ef527b1f5279a5e24bcf18332
Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip4_source_check.c')
| -rw-r--r-- | src/vnet/ip/ip4_source_check.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/src/vnet/ip/ip4_source_check.c b/src/vnet/ip/ip4_source_check.c index 3af32f2e13b..7c2b7be8cf1 100644 --- a/src/vnet/ip/ip4_source_check.c +++ b/src/vnet/ip/ip4_source_check.c @@ -162,12 +162,8 @@ ip4_source_check_inline (vlib_main_t * vm, mtrie0 = &ip4_fib_get (c0->fib_index)->mtrie; mtrie1 = &ip4_fib_get (c1->fib_index)->mtrie; - leaf0 = leaf1 = IP4_FIB_MTRIE_LEAF_ROOT; - - leaf0 = - ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); - leaf1 = - ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 0); + leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address); + leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, &ip1->src_address); leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); @@ -250,10 +246,7 @@ ip4_source_check_inline (vlib_main_t * vm, mtrie0 = &ip4_fib_get (c0->fib_index)->mtrie; - leaf0 = IP4_FIB_MTRIE_LEAF_ROOT; - - leaf0 = - ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); + leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address); leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); |