commit 097fa66b986f06281f603767d321ab13ab6c88c3
author Neale Ranns <neale.ranns@cisco.com> Tue May 01 05:17:55 2018 -0700
committer Ole Trøan <otroan@employees.org> Tue Jun 18 13:31:39 2019 +0000
tree ed052819615d08ee4bd0afbc34de7e64e4598105
parent 39baa32186fd3e4b20d9f58afbbfe7b8daebed62

fib: fib api updates

Enhance the route add/del APIs to take a set of paths rather than just one.
Most unicast routing protocols calcualte all the available paths in one
run of the algorithm so updating all the paths at once is beneficial for the client.
two knobs control the behaviour:
  is_multipath - if set the the set of paths passed will be added to those
                 that already exist, otherwise the set will replace them.
  is_add - add or remove the set

is_add=0, is_multipath=1 and an empty set, results in deleting the route.

It is also considerably faster to add multiple paths at once, than one at a time:

vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.11
100000 routes in .572240 secs, 174751.80 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.12
100000 routes in .528383 secs, 189256.54 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.13
100000 routes in .757131 secs, 132077.52 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.14
100000 routes in .878317 secs, 113854.12 routes/sec

vat# ip_route_add_del 1.1.1.1/32 count 100000 multipath via 10.10.10.11 via 10.10.10.12 via 10.10.10.13 via 10.10.10.14
100000 routes in .900212 secs, 111084.93 routes/sec

Change-Id: I416b93f7684745099c1adb0b33edac58c9339c1a
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>

test/test_srv6_as.py

diff --git a/test/test_srv6_as.py b/test/test_srv6_as.py
index 108fcdb..2be7865 100755
--- a/test/test_srv6_as.py
+++ b/test/test_srv6_as.py
@@ -5,7 +5,7 @@
 from socket import AF_INET6
 
 from framework import VppTestCase, VppTestRunner
-from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto, VppIpTable
+from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathProto, VppIpTable
 from vpp_srv6 import SRv6LocalSIDBehaviors, VppSRv6LocalSID, VppSRv6Policy, \
     SRv6PolicyType, VppSRv6Steering, SRv6PolicySteeringTypes
 
@@ -196,9 +196,7 @@
         # configure route to next segment
         route = VppIpRoute(self, sid_list[test_sid_index + 1], 128,
                            [VppRoutePath(self.pg0.remote_ip6,
-                                         self.pg0.sw_if_index,
-                                         proto=DpoProto.DPO_PROTO_IP6)],
-                           is_ip6=1)
+                                         self.pg0.sw_if_index)])
         route.add_vpp_config()
 
         # configure SRv6 localSID behavior
@@ -267,9 +265,7 @@
         # configure route to next segment
         route = VppIpRoute(self, sid_list[test_sid_index + 1], 128,
                            [VppRoutePath(self.pg0.remote_ip6,
-                                         self.pg0.sw_if_index,
-                                         proto=DpoProto.DPO_PROTO_IP6)],
-                           is_ip6=1)
+                                         self.pg0.sw_if_index)])
         route.add_vpp_config()
 
         # configure SRv6 localSID behavior
@@ -338,9 +334,7 @@
         # configure route to next segment
         route = VppIpRoute(self, sid_list[test_sid_index + 1], 128,
                            [VppRoutePath(self.pg0.remote_ip6,
-                                         self.pg0.sw_if_index,
-                                         proto=DpoProto.DPO_PROTO_IP6)],
-                           is_ip6=1)
+                                         self.pg0.sw_if_index)])
         route.add_vpp_config()
 
         # configure SRv6 localSID behavior