From 06388a03d2a792b017d67457012c4f289bf45e13 Mon Sep 17 00:00:00 2001 From: Casper Andersson Date: Wed, 23 Feb 2022 09:27:00 +0100 Subject: [PATCH] net: sparx5: Support offloading of bridge port flooding flags Though the SparX-5i can control IPv4/6 multicasts separately from non-IP multicasts, these are all muxed onto the bridge's BR_MCAST_FLOOD flag. Signed-off-by: Casper Andersson Reviewed-by: Horatiu Vultur Link: https://lore.kernel.org/r/20220223082700.qrot7lepwqcdnyzw@wse-c0155 Signed-off-by: Jakub Kicinski --- .../ethernet/microchip/sparx5/sparx5_switchdev.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c index f5271c3..dacb87f 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c @@ -19,11 +19,27 @@ struct sparx5_switchdev_event_work { unsigned long event; }; +static int sparx5_port_attr_pre_bridge_flags(struct sparx5_port *port, + struct switchdev_brport_flags flags) +{ + if (flags.mask & ~(BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD)) + return -EINVAL; + + return 0; +} + static void sparx5_port_attr_bridge_flags(struct sparx5_port *port, struct switchdev_brport_flags flags) { + int pgid; + if (flags.mask & BR_MCAST_FLOOD) - sparx5_pgid_update_mask(port, PGID_MC_FLOOD, true); + for (pgid = PGID_MC_FLOOD; pgid <= PGID_IPV6_MC_CTRL; pgid++) + sparx5_pgid_update_mask(port, pgid, !!(flags.val & BR_MCAST_FLOOD)); + if (flags.mask & BR_FLOOD) + sparx5_pgid_update_mask(port, PGID_UC_FLOOD, !!(flags.val & BR_FLOOD)); + if (flags.mask & BR_BCAST_FLOOD) + sparx5_pgid_update_mask(port, PGID_BCAST, !!(flags.val & BR_BCAST_FLOOD)); } static void sparx5_attr_stp_state_set(struct sparx5_port *port, @@ -72,6 +88,9 @@ static int sparx5_port_attr_set(struct net_device *dev, const void *ctx, struct sparx5_port *port = netdev_priv(dev); switch (attr->id) { + case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: + return sparx5_port_attr_pre_bridge_flags(port, + attr->u.brport_flags); case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: sparx5_port_attr_bridge_flags(port, attr->u.brport_flags); break; -- 2.7.4