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nexthop: Add data structures for resilient group notifications

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Add data structures that will be used for in-kernel notifications about
addition / deletion of a resilient nexthop group and about changes to a
hash bucket within a resilient group.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2021-03-11 19:03:17 +01:00 committed by David S. Miller
parent 283a72a559
commit b8f090d0be
1 changed files with 19 additions and 0 deletions
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19
include/net/nexthop.h
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@ -155,11 +155,15 @@ struct nexthop {
enum nexthop_event_type {
NEXTHOP_EVENT_DEL,
NEXTHOP_EVENT_REPLACE,
NEXTHOP_EVENT_RES_TABLE_PRE_REPLACE,
NEXTHOP_EVENT_BUCKET_REPLACE,
};
enum nh_notifier_info_type {
NH_NOTIFIER_INFO_TYPE_SINGLE,
NH_NOTIFIER_INFO_TYPE_GRP,
NH_NOTIFIER_INFO_TYPE_RES_TABLE,
NH_NOTIFIER_INFO_TYPE_RES_BUCKET,
};
struct nh_notifier_single_info {
@ -186,6 +190,19 @@ struct nh_notifier_grp_info {
struct nh_notifier_grp_entry_info nh_entries[];
};
struct nh_notifier_res_bucket_info {
u16 bucket_index;
unsigned int idle_timer_ms;
bool force;
struct nh_notifier_single_info old_nh;
struct nh_notifier_single_info new_nh;
};
struct nh_notifier_res_table_info {
u16 num_nh_buckets;
struct nh_notifier_single_info nhs[];
};
struct nh_notifier_info {
struct net *net;
struct netlink_ext_ack *extack;
@ -194,6 +211,8 @@ struct nh_notifier_info {
union {
struct nh_notifier_single_info *nh;
struct nh_notifier_grp_info *nh_grp;
struct nh_notifier_res_table_info *nh_res_table;
struct nh_notifier_res_bucket_info *nh_res_bucket;
};
};