diff options
| author |   Jon Loeliger <jdl@netgate.com> | 2017-02-23 13:57:35 -0600 |
|---|---|---|
| committer |   John Lo <loj@cisco.com> | 2017-03-03 23:19:21 +0000 |
| commit | c83c3b7f117b981b677f646a0e30f44ec70de239 (patch) | |
| tree | 323266bab831bcbfb14f089e803b7cbc13b857e1 /src/vpp/api/api.c | |
| parent | a084d62a6e47d3505b3ed314230598704314f7bc (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/api.c')
| -rw-r--r-- | src/vpp/api/api.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/vpp/api/api.c b/src/vpp/api/api.c index e028fad4a39..f06894e8783 100644 --- a/src/vpp/api/api.c +++ b/src/vpp/api/api.c @@ -116,6 +116,7 @@ _(PROXY_ARP_INTFC_ENABLE_DISABLE, proxy_arp_intfc_enable_disable) \ _(VNET_GET_SUMMARY_STATS, vnet_get_summary_stats) \ _(RESET_FIB, reset_fib) \ _(CREATE_LOOPBACK, create_loopback) \ +_(CREATE_LOOPBACK_INSTANCE, create_loopback_instance) \ _(CONTROL_PING, control_ping) \ _(CLI_REQUEST, cli_request) \ _(CLI_INBAND, cli_inband) \ @@ -1026,7 +1027,7 @@ vl_api_create_loopback_t_handler (vl_api_create_loopback_t * mp) u32 sw_if_index; int rv; - rv = vnet_create_loopback_interface (&sw_if_index, mp->mac_address); + rv = vnet_create_loopback_interface (&sw_if_index, mp->mac_address, 0, 0); /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_CREATE_LOOPBACK_REPLY, @@ -1036,6 +1037,26 @@ vl_api_create_loopback_t_handler (vl_api_create_loopback_t * mp) /* *INDENT-ON* */ } +static void vl_api_create_loopback_instance_t_handler + (vl_api_create_loopback_instance_t * mp) +{ + vl_api_create_loopback_instance_reply_t *rmp; + u32 sw_if_index; + u8 is_specified = mp->is_specified; + u32 user_instance = ntohl (mp->user_instance); + int rv; + + rv = vnet_create_loopback_interface (&sw_if_index, mp->mac_address, + is_specified, user_instance); + + /* *INDENT-OFF* */ + REPLY_MACRO2(VL_API_CREATE_LOOPBACK_INSTANCE_REPLY, + ({ + rmp->sw_if_index = ntohl (sw_if_index); + })); + /* *INDENT-ON* */ +} + static void vl_api_delete_loopback_t_handler (vl_api_delete_loopback_t * mp) { |