From 1d6ae9652780e97302b7e02610d9b6b74020b9ff Mon Sep 17 00:00:00 2001
From: MD Danish Anwar <danishanwar@ti.com>
Date: Wed, 11 Sep 2024 13:46:03 +0530
Subject: net: ti: icssg-prueth: Add multicast filtering support in HSR mode

Add support for multicast filtering in HSR mode

Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://patch.msgid.link/20240911081603.2521729-6-danishanwar@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/ethernet/ti/icssg/icssg_prueth.c | 42 ++++++++++++++++++++++++++--
 1 file changed, 40 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index d128764982ae..5fd9902ab181 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -492,6 +492,36 @@ 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
@@ -652,7 +682,10 @@ 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 */
@@ -730,7 +763,12 @@ 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);
 }
 
 /**
-- 
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