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Message-ID: <30f98ce4f780d167a45454f09fb4b0111b449f7e.1615485052.git.petrm@nvidia.com>
Date:   Thu, 11 Mar 2021 19:03:17 +0100
From:   Petr Machata <petrm@...dia.com>
To:     <netdev@...r.kernel.org>
CC:     Ido Schimmel <idosch@...dia.com>, David Ahern <dsahern@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "Petr Machata" <petrm@...dia.com>
Subject: [PATCH net-next v2 06/14] nexthop: Add data structures for resilient group notifications

From: Ido Schimmel <idosch@...dia.com>

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@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
Reviewed-by: David Ahern <dsahern@...nel.org>
Signed-off-by: Petr Machata <petrm@...dia.com>
---

Notes:
    v1 (changes since RFC):
    - u32 -> u16 for bucket counts / indices

 include/net/nexthop.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/net/nexthop.h b/include/net/nexthop.h
index b78505c9031e..fd3c0debe8bf 100644
--- a/include/net/nexthop.h
+++ b/include/net/nexthop.h
@@ -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;
 	};
 };
 
-- 
2.26.2

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