From:   Steen Hegelund <steen.hegelund@microchip.com>
To:     "David S . Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>
CC:     Steen Hegelund <steen.hegelund@microchip.com>,
        <UNGLinuxDriver@microchip.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        "Casper Andersson" <casper.casan@gmail.com>,
        Russell King <rmk+kernel@armlinux.org.uk>,
        Wan Jiabing <wanjiabing@vivo.com>,
        "Nathan Huckleberry" <nhuck@google.com>,
        <linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        "Steen Hegelund" <Steen.Hegelund@microchip.com>,
        Daniel Machon <daniel.machon@microchip.com>,
        Horatiu Vultur <horatiu.vultur@microchip.com>,
        Lars Povlsen <lars.povlsen@microchip.com>,
        Dan Carpenter <error27@gmail.com>,
        Michael Walle <michael@walle.cc>
Subject: [PATCH net-next 2/8] net: microchip: sparx5: Improve the IP frame key match for IPv6 frames
Date:   Fri, 27 Jan 2023 14:08:24 +0100
Message-ID: <20230127130830.1481526-3-steen.hegelund@microchip.com>
In-Reply-To: <20230127130830.1481526-1-steen.hegelund@microchip.com>
References: <20230127130830.1481526-1-steen.hegelund@microchip.com>
MIME-Version: 1.0
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This ensures that it will be possible for a VCAP rule to distinguish IPv6
frames from non-IP frames, as the IS0 keyset usually selected for the IPv6
traffic class in (7TUPLE) does not offer a key that specifies IPv6
directly: only non-IPv4.

The IP_SNAP key ensures that we select (at least) IP frames.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
---
 drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
index 59d6ed6f4191..8982c434cf54 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
@@ -266,6 +266,14 @@ sparx5_tc_flower_handler_basic_usage(struct sparx5_tc_flower_parse_usage *st)
 						    VCAP_BIT_0);
 			if (err)
 				goto out;
+			if (st->admin->vtype == VCAP_TYPE_IS0) {
+				err = vcap_rule_add_key_bit(st->vrule,
+							    VCAP_KF_IP_SNAP_IS,
+							    VCAP_BIT_1);
+				if (err)
+					goto out;
+			}
+
 		}
 	}
 
-- 
2.39.1