diff options
| author | Mark Stapp <mjs@voltanet.io> | 2020-06-30 15:52:37 -0400 |
|---|---|---|
| committer | Mark Stapp <mjs@voltanet.io> | 2020-07-17 13:12:33 -0400 |
| commit | 474aebd9391588d4cd5169187fd0e9abc812de42 (patch) | |
| tree | 17921ba8bee88364720b2dfa72916543c950d976 /lib/nexthop.h | |
| parent | 00a9b150056699383635c6f9e0454e82162389b0 (diff) | |
lib,sharpd,zebra: initial support for multiple backup nexthops
Initial changes to support a nexthop with multiple backups. Lib
changes to hold a small array in each primary, zapi message
changes to support sending multiple backups, and daemon
changes to show commands to support multiple backups. The config
input for multiple backup indices is not present here.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Diffstat (limited to 'lib/nexthop.h')
| -rw-r--r-- | lib/nexthop.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/nexthop.h b/lib/nexthop.h index eda88efc08..e40c27d873 100644 --- a/lib/nexthop.h +++ b/lib/nexthop.h @@ -65,6 +65,12 @@ enum nh_encap_type { NET_VXLAN = 100, /* value copied from FPM_NH_ENCAP_VXLAN. */ }; +/* Fixed limit on the number of backup nexthops per primary nexthop */ +#define NEXTHOP_MAX_BACKUPS 8 + +/* Backup index value is limited */ +#define NEXTHOP_BACKUP_IDX_MAX 255 + /* Nexthop structure. */ struct nexthop { struct nexthop *next; @@ -124,10 +130,11 @@ struct nexthop { /* Weight of the nexthop ( for unequal cost ECMP ) */ uint8_t weight; - /* Index of a corresponding backup nexthop in a backup list; + /* Count and index of corresponding backup nexthop(s) in a backup list; * only meaningful if the HAS_BACKUP flag is set. */ - uint8_t backup_idx; + uint8_t backup_num; + uint8_t backup_idx[NEXTHOP_MAX_BACKUPS]; /* Encapsulation information. */ enum nh_encap_type nh_encap_type; @@ -136,9 +143,6 @@ struct nexthop { } nh_encap; }; -/* Backup index value is limited */ -#define NEXTHOP_BACKUP_IDX_MAX 255 - /* Utility to append one nexthop to another. */ #define NEXTHOP_APPEND(to, new) \ do { \ |