netdev - [PATCH net-next 1/3] net: lan966x: Update the PGID used by IPV6 data frames

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Date:   Fri, 4 Feb 2022 10:14:50 +0100
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <UNGLinuxDriver@...rochip.com>, <davem@...emloft.net>,
        <kuba@...nel.org>, <linux@...linux.org.uk>, <f.fainelli@...il.com>,
        <vivien.didelot@...il.com>, <vladimir.oltean@....com>,
        <andrew@...n.ch>, Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next 1/3] net: lan966x: Update the PGID used by IPV6 data frames

When enabling the multicast snooping, the forwarding of the IPV6 frames
has it's own forwarding mask.

Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
---
 drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 8eaaa7559407..3d1072955183 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -767,7 +767,7 @@ static void lan966x_init(struct lan966x *lan966x)
 	/* Setup flooding PGIDs */
 	lan_wr(ANA_FLOODING_IPMC_FLD_MC4_DATA_SET(PGID_MCIPV4) |
 	       ANA_FLOODING_IPMC_FLD_MC4_CTRL_SET(PGID_MC) |
-	       ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MC) |
+	       ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MCIPV6) |
 	       ANA_FLOODING_IPMC_FLD_MC6_CTRL_SET(PGID_MC),
 	       lan966x, ANA_FLOODING_IPMC);
 
@@ -829,6 +829,10 @@ static void lan966x_init(struct lan966x *lan966x)
 		ANA_PGID_PGID,
 		lan966x, ANA_PGID(PGID_MCIPV4));
 
+	lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0),
+		ANA_PGID_PGID,
+		lan966x, ANA_PGID(PGID_MCIPV6));
+
 	/* Unicast to all other ports */
 	lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0),
 		ANA_PGID_PGID,
-- 
2.33.0