linux-kernel - [PATCH net-next 1/5] net: mscc: ocelot: classify L2 mdb entries as LOCKED

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Message-Id: <20201029022738.722794-2-vladimir.oltean@nxp.com>
Date:   Thu, 29 Oct 2020 04:27:34 +0200
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 1/5] net: mscc: ocelot: classify L2 mdb entries as LOCKED

ocelot.h says:

/* MAC table entry types.
 * ENTRYTYPE_NORMAL is subject to aging.
 * ENTRYTYPE_LOCKED is not subject to aging.
 * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
 * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
 */

We don't want the permanent entries added with 'bridge mdb' to be
subject to aging.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 drivers/net/ethernet/mscc/ocelot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 70bf8c67d7ef..25152f1f2939 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -958,7 +958,7 @@ static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr)
 		return ENTRYTYPE_MACv4;
 	if (addr[0] == 0x33 && addr[1] == 0x33)
 		return ENTRYTYPE_MACv6;
-	return ENTRYTYPE_NORMAL;
+	return ENTRYTYPE_LOCKED;
 }
 
 static int ocelot_mdb_get_pgid(struct ocelot *ocelot,
-- 
2.25.1