linux-kernel - [PATCH net-next v2 2/4] bridge: mrp: Add 'enum br_mrp_hw

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20210127205241.2864728-3-horatiu.vultur@microchip.com>
Date:   Wed, 27 Jan 2021 21:52:39 +0100
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <jiri@...nulli.us>, <ivecera@...hat.com>, <davem@...emloft.net>,
        <kuba@...nel.org>, <roopa@...dia.com>, <nikolay@...dia.com>,
        <rasmus.villemoes@...vas.dk>, <andrew@...n.ch>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <bridge@...ts.linux-foundation.org>
CC:     Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next v2 2/4] bridge: mrp: Add 'enum br_mrp_hw_support'

Add the enum br_mrp_hw_support that is used by the br_mrp_switchdev
functions to allow the SW to detect the cases where HW can't implement
the functionality or when SW is used as a backup.

Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
---
 net/bridge/br_private_mrp.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h
index 1883118aae55..31e666ae6955 100644
--- a/net/bridge/br_private_mrp.h
+++ b/net/bridge/br_private_mrp.h
@@ -46,6 +46,20 @@ struct br_mrp {
 	struct rcu_head			rcu;
 };
 
+/* This type is returned by br_mrp_switchdev functions that allow to have a SW
+ * backup in case the HW can't implement completely the protocol.
+ * BR_MRP_NONE - means the HW can't run at all the protocol, so the SW stops
+ *               configuring the node anymore.
+ * BR_MRP_SW - the HW can help the SW to run the protocol, by redirecting MRP
+ *             frames to CPU.
+ * BR_MRP_HW - the HW can implement completely the protocol.
+ */
+enum br_mrp_hw_support {
+	BR_MRP_NONE,
+	BR_MRP_SW,
+	BR_MRP_HW,
+};
+
 /* br_mrp.c */
 int br_mrp_add(struct net_bridge *br, struct br_mrp_instance *instance);
 int br_mrp_del(struct net_bridge *br, struct br_mrp_instance *instance);
-- 
2.27.0