realtek: Fix VLAN issues introduced by multicast patches

This adds the CPU port to the unknown multicast flooding port mask,
which fixes the VLAN issues introduced by the multicast group patches

Tested-by: Russell Senior <[email protected]> [Netgear GS108Tv3]
Signed-off-by: Birger Koblitz <[email protected]>
Signed-off-by: Bjørn Mork <[email protected]> [whitespace fix]
Signed-off-by: Petr Štetiar <[email protected]> [unknwon typo fix]

target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/rtl838x.c

@@ -398,7 +398,7 @@ static void rtl838x_vlan_profile_setup(int profile)
 	 * On RTL93XX, the portmask is directly set in the profile,
 	 * see e.g. rtl9300_vlan_profile_setup
 	 */
-	rtl838x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0xfffffff);
+	rtl838x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x1fffffff);
 }
 
 static inline int rtl838x_vlan_port_egr_filter(int port)

target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/rtl839x.c

@@ -411,7 +411,7 @@ static void rtl839x_vlan_profile_setup(int profile)
 	sw_w32(p[0], RTL839X_VLAN_PROFILE(profile));
 	sw_w32(p[1], RTL839X_VLAN_PROFILE(profile) + 4);
 
-	rtl839x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x000fffffffffffff);
+	rtl839x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x001fffffffffffff);
 }
 
 static inline int rtl839x_vlan_port_egr_filter(int port)

target/linux/realtek/files-5.4/drivers/net/dsa/rtl83xx/rtl930x.c

@@ -153,9 +153,9 @@ static void rtl930x_vlan_profile_setup(int profile)
 
 	// Enable routing of Ipv4/6 Unicast and IPv4/6 Multicast traffic
 	p[0] |= BIT(17) | BIT(16) | BIT(13) | BIT(12);
-	p[2] = 0x0fffffff; // L2 unknwon MC flooding portmask: all but the CPU-port
-	p[3] = 0x0fffffff; // IPv4 unknwon MC flooding portmask
-	p[4] = 0x0fffffff; // IPv6 unknwon MC flooding portmask
+	p[2] = 0x1fffffff; // L2 unknown MC flooding portmask all ports, including the CPU-port
+	p[3] = 0x1fffffff; // IPv4 unknown MC flooding portmask
+	p[4] = 0x1fffffff; // IPv6 unknown MC flooding portmask
 
 	sw_w32(p[0], RTL930X_VLAN_PROFILE_SET(profile));
 	sw_w32(p[1], RTL930X_VLAN_PROFILE_SET(profile) + 4);