linux-kernel - [PATCH] r8169: Disable multicast filter for RTL_GIGA_MAC_VER

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Date:   Tue,  6 Jun 2023 10:00:36 -0400
From:   Patrick Thompson <ptf@...gle.com>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Patrick Thompson <ptf@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        nic_swsd@...ltek.com
Subject: [PATCH] r8169: Disable multicast filter for RTL_GIGA_MAC_VER_46

MAC_VER_46 ethernet adapters fail to detect IPv6 multicast packets
unless allmulti is enabled. Add exception for VER_46 in the same way
VER_35 has an exception.

Signed-off-by: Patrick Thompson <ptf@...gle.com>
---

 drivers/net/ethernet/realtek/r8169_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 4b19803a7dd01..96245e96ee507 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2583,7 +2583,8 @@ static void rtl_set_rx_mode(struct net_device *dev)
 		rx_mode |= AcceptAllPhys;
 	} else if (netdev_mc_count(dev) > MC_FILTER_LIMIT ||
 		   dev->flags & IFF_ALLMULTI ||
-		   tp->mac_version == RTL_GIGA_MAC_VER_35) {
+		   tp->mac_version == RTL_GIGA_MAC_VER_35 ||
+		   tp->mac_version == RTL_GIGA_MAC_VER_46) {
 		/* accept all multicasts */
 	} else if (netdev_mc_empty(dev)) {
 		rx_mode &= ~AcceptMulticast;
-- 
2.41.0.rc0.172.g3f132b7071-goog