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authorJon Loeliger <jdl@netgate.com>2017-02-23 13:57:35 -0600
committerJohn Lo <loj@cisco.com>2017-03-03 23:19:21 +0000
commitc83c3b7f117b981b677f646a0e30f44ec70de239 (patch)
tree323266bab831bcbfb14f089e803b7cbc13b857e1 /src/vpp/api/custom_dump.c
parenta084d62a6e47d3505b3ed314230598704314f7bc (diff)
Implement a loopback instance allocation scheme.
To support creating loopback interfaces with a specific instance number, a new CREATE_LOOPBACK_INSTANCE API call with flag is_specified and value user_instance is introduced. Presumably the existing CREATE_LOOPBACK API message will be obsoleted and revmoved. The VAT cli commands can now mention and format the new field as 'instance %d' data. If no instance number is named, the old call CREATE_LOOPBACK is used to maintain backward compatibility. However, if the instance is named, the new CREATE_LOOPBACK_INSTANCE message will be used. Both the dynamically allocated and user-requested instance number are tracked in a bitvector. If is_specified is 0, the next free instance will be used.. A request for a specific instance number will be granted if it is available. On error, the value ~0 is returned. Change-Id: I849815563a5da736dcd6bccd262ef49b963f6643 Signed-off-by: Jon Loeliger <jdl@netgate.com>
Diffstat (limited to 'src/vpp/api/custom_dump.c')
-rw-r--r--src/vpp/api/custom_dump.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/vpp/api/custom_dump.c b/src/vpp/api/custom_dump.c
index c61e31bb..ee0c4629 100644
--- a/src/vpp/api/custom_dump.c
+++ b/src/vpp/api/custom_dump.c
@@ -72,6 +72,18 @@ static void *vl_api_create_loopback_t_print
FINISH;
}
+static void *vl_api_create_loopback_instance_t_print
+ (vl_api_create_loopback_instance_t * mp, void *handle)
+{
+ u8 *s;
+
+ s = format (0, "SCRIPT: create_loopback ");
+ s = format (s, "mac %U ", format_ethernet_address, &mp->mac_address);
+ s = format (s, "instance %d ", ntohl (mp->user_instance));
+
+ FINISH;
+}
+
static void *vl_api_delete_loopback_t_print
(vl_api_delete_loopback_t * mp, void *handle)
{
@@ -2821,6 +2833,7 @@ foreach_custom_print_no_arg_function
#undef _
#define foreach_custom_print_function \
_(CREATE_LOOPBACK, create_loopback) \
+_(CREATE_LOOPBACK_INSTANCE, create_loopback_instance) \
_(SW_INTERFACE_SET_FLAGS, sw_interface_set_flags) \
_(SW_INTERFACE_ADD_DEL_ADDRESS, sw_interface_add_del_address) \
_(SW_INTERFACE_SET_TABLE, sw_interface_set_table) \