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/vnet/ethernet/ethernet.h | |
| 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/vnet/ethernet/ethernet.h')
| -rw-r--r-- | src/vnet/ethernet/ethernet.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/vnet/ethernet/ethernet.h b/src/vnet/ethernet/ethernet.h index 3acde421f78..ba84c69c00c 100644 --- a/src/vnet/ethernet/ethernet.h +++ b/src/vnet/ethernet/ethernet.h @@ -265,6 +265,9 @@ typedef struct /* Feature arc index */ u8 output_feature_arc_index; + + /* Allocated loopback instances */ + uword *bm_loopback_instances; } ethernet_main_t; ethernet_main_t ethernet_main; @@ -412,7 +415,8 @@ clib_error_t *next_by_ethertype_init (next_by_ethertype_t * l3_next); clib_error_t *next_by_ethertype_register (next_by_ethertype_t * l3_next, u32 ethertype, u32 next_index); -int vnet_create_loopback_interface (u32 * sw_if_indexp, u8 * mac_address); +int vnet_create_loopback_interface (u32 * sw_if_indexp, u8 * mac_address, + u8 is_specified, u32 user_instance); int vnet_delete_loopback_interface (u32 sw_if_index); int vnet_delete_sub_interface (u32 sw_if_index); |