From 96baf482ca1f69f0da9d10a5bd8422c87ea9039e Mon Sep 17 00:00:00 2001 From: Tristram Ha Date: Tue, 4 Nov 2025 19:37:41 -0800 Subject: net: dsa: microchip: Fix reserved multicast address table programming MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit KSZ9477/KSZ9897 and LAN937X families of switches use a reserved multicast address table for some specific forwarding with some multicast addresses, like the one used in STP. The hardware assumes the host port is the last port in KSZ9897 family and port 5 in LAN937X family. Most of the time this assumption is correct but not in other cases like KSZ9477. Originally the function just setups the first entry, but the others still need update, especially for one common multicast address that is used by PTP operation. LAN937x also uses different register bits when accessing the reserved table. Fixes: 457c182af597 ("net: dsa: microchip: generic access to ksz9477 static and reserved table") Signed-off-by: Tristram Ha Tested-by: Łukasz Majewski Link: https://patch.msgid.link/20251105033741.6455-1-Tristram.Ha@microchip.com Signed-off-by: Jakub Kicinski --- drivers/net/dsa/microchip/ksz_common.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/dsa/microchip/ksz_common.h') diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h index a1eb39771bb9..c65188cd3c0a 100644 --- a/drivers/net/dsa/microchip/ksz_common.h +++ b/drivers/net/dsa/microchip/ksz_common.h @@ -294,6 +294,8 @@ enum ksz_masks { DYNAMIC_MAC_TABLE_TIMESTAMP, ALU_STAT_WRITE, ALU_STAT_READ, + ALU_STAT_DIRECT, + ALU_RESV_MCAST_ADDR, P_MII_TX_FLOW_CTRL, P_MII_RX_FLOW_CTRL, }; -- cgit v1.2.3