linux-kernel - [PATCH net-next v3 5/6] net: ti: icssg-prueth: Add multicast filtering support in HSR mode

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Message-ID: <20240828091901.3120935-6-danishanwar@ti.com>
Date: Wed, 28 Aug 2024 14:49:00 +0530
From: MD Danish Anwar <danishanwar@...com>
To: Andrew Lunn <andrew@...n.ch>, Dan Carpenter <dan.carpenter@...aro.org>,
        Jan Kiszka <jan.kiszka@...mens.com>,
        Javier Carrasco
	<javier.carrasco.cruz@...il.com>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Diogo Ivo <diogo.ivo@...mens.com>, Simon Horman <horms@...nel.org>,
        Richard
 Cochran <richardcochran@...il.com>,
        Paolo Abeni <pabeni@...hat.com>, Jakub
 Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S.
 Miller" <davem@...emloft.net>
CC: <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <srk@...com>,
        Vignesh Raghavendra
	<vigneshr@...com>,
        Roger Quadros <rogerq@...nel.org>, <danishanwar@...com>
Subject: [PATCH net-next v3 5/6] net: ti: icssg-prueth: Add multicast filtering support in HSR mode

Add support for multicast filtering in HSR mode

Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
 drivers/net/ethernet/ti/icssg/icssg_prueth.c | 42 +++++++++++++++++++-
 1 file changed, 40 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index b60efe7bd7a7..ecc342bcc1b5 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -490,6 +490,36 @@ static int icssg_prueth_del_mcast(struct net_device *ndev, const u8 *addr)
 	return 0;
 }
 
+static int icssg_prueth_hsr_add_mcast(struct net_device *ndev, const u8 *addr)
+{
+	struct prueth_emac *emac = netdev_priv(ndev);
+	struct prueth *prueth = emac->prueth;
+
+	icssg_fdb_add_del(emac, addr, prueth->default_vlan,
+			  ICSSG_FDB_ENTRY_P0_MEMBERSHIP |
+			  ICSSG_FDB_ENTRY_P1_MEMBERSHIP |
+			  ICSSG_FDB_ENTRY_P2_MEMBERSHIP |
+			  ICSSG_FDB_ENTRY_BLOCK, true);
+
+	icssg_vtbl_modify(emac, emac->port_vlan, BIT(emac->port_id),
+			  BIT(emac->port_id), true);
+	return 0;
+}
+
+static int icssg_prueth_hsr_del_mcast(struct net_device *ndev, const u8 *addr)
+{
+	struct prueth_emac *emac = netdev_priv(ndev);
+	struct prueth *prueth = emac->prueth;
+
+	icssg_fdb_add_del(emac, addr, prueth->default_vlan,
+			  ICSSG_FDB_ENTRY_P0_MEMBERSHIP |
+			  ICSSG_FDB_ENTRY_P1_MEMBERSHIP |
+			  ICSSG_FDB_ENTRY_P2_MEMBERSHIP |
+			  ICSSG_FDB_ENTRY_BLOCK, false);
+
+	return 0;
+}
+
 /**
  * emac_ndo_open - EMAC device open
  * @ndev: network adapter device
@@ -650,7 +680,10 @@ static int emac_ndo_stop(struct net_device *ndev)
 
 	icssg_class_disable(prueth->miig_rt, prueth_emac_slice(emac));
 
-	__dev_mc_unsync(ndev, icssg_prueth_del_mcast);
+	if (emac->prueth->is_hsr_offload_mode)
+		__dev_mc_unsync(ndev, icssg_prueth_hsr_del_mcast);
+	else
+		__dev_mc_unsync(ndev, icssg_prueth_del_mcast);
 
 	atomic_set(&emac->tdown_cnt, emac->tx_ch_num);
 	/* ensure new tdown_cnt value is visible */
@@ -728,7 +761,12 @@ static void emac_ndo_set_rx_mode_work(struct work_struct *work)
 		return;
 	}
 
-	__dev_mc_sync(ndev, icssg_prueth_add_mcast, icssg_prueth_del_mcast);
+	if (emac->prueth->is_hsr_offload_mode)
+		__dev_mc_sync(ndev, icssg_prueth_hsr_add_mcast,
+			      icssg_prueth_hsr_del_mcast);
+	else
+		__dev_mc_sync(ndev, icssg_prueth_add_mcast,
+			      icssg_prueth_del_mcast);
 }
 
 /**
-- 
2.34.1