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From: Horatiu Vultur <horatiu.vultur@microchip.com>
To: <jiri@resnulli.us>, <ivecera@redhat.com>, <davem@davemloft.net>,
	<kuba@kernel.org>, <roopa@nvidia.com>, <nikolay@nvidia.com>,
	<rasmus.villemoes@prevas.dk>, <andrew@lunn.ch>,
	<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<bridge@lists.linux-foundation.org>
Cc: Horatiu Vultur <horatiu.vultur@microchip.com>
Subject: [PATCH net-next v2 2/4] bridge: mrp: Add 'enum br_mrp_hw_support'
Date: Wed, 27 Jan 2021 21:52:39 +0100	[thread overview]
Message-ID: <20210127205241.2864728-3-horatiu.vultur@microchip.com> (raw)
In-Reply-To: <20210127205241.2864728-1-horatiu.vultur@microchip.com>

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@microchip.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


  parent reply	other threads:[~2021-01-27 20:56 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-27 20:52 [PATCH net-next v2 0/4] bridge: mrp: Extend br_mrp_switchdev_* Horatiu Vultur
2021-01-27 20:52 ` [PATCH net-next v2 1/4] switchdev: mrp: Extend ring_role_mrp and in_role_mrp Horatiu Vultur
2021-01-27 20:52 ` Horatiu Vultur [this message]
2021-01-27 20:52 ` [PATCH net-next v2 3/4] bridge: mrp: Extend br_mrp_switchdev to detect better the errors Horatiu Vultur
2021-01-27 20:52 ` [PATCH net-next v2 4/4] bridge: mrp: Update br_mrp to use new return values of br_mrp_switchdev Horatiu Vultur
2021-01-30  3:01 ` [PATCH net-next v2 0/4] bridge: mrp: Extend br_mrp_switchdev_* Jakub Kicinski
2021-02-02  7:40   ` Rasmus Villemoes
2021-02-02 19:50     ` Jakub Kicinski
2021-02-02 20:06       ` Horatiu Vultur
2021-02-02 20:49         ` Jakub Kicinski

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