diff mbox series

[net-next,v8,8/9] net: lan966x: Extend switchdev bridge flags

Message ID 20211218214946.531940-9-horatiu.vultur@microchip.com (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series net: lan966x: Add switchdev and vlan support | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 51 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Horatiu Vultur Dec. 18, 2021, 9:49 p.m. UTC 
Currently allow a port to be part or not of the multicast flooding mask.
By implementing the switchdev calls SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS
and SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
 .../microchip/lan966x/lan966x_switchdev.c     | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c b/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
index 81e37624b553..af058700a95b 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
@@ -9,6 +9,39 @@  static struct notifier_block lan966x_netdevice_nb __read_mostly;
 static struct notifier_block lan966x_switchdev_nb __read_mostly;
 static struct notifier_block lan966x_switchdev_blocking_nb __read_mostly;
 
+static void lan966x_port_set_mcast_flood(struct lan966x_port *port,
+					 bool enabled)
+{
+	u32 val = lan_rd(port->lan966x, ANA_PGID(PGID_MC));
+
+	val = ANA_PGID_PGID_GET(val);
+	if (enabled)
+		val |= BIT(port->chip_port);
+	else
+		val &= ~BIT(port->chip_port);
+
+	lan_rmw(ANA_PGID_PGID_SET(val),
+		ANA_PGID_PGID,
+		port->lan966x, ANA_PGID(PGID_MC));
+}
+
+static void lan966x_port_bridge_flags(struct lan966x_port *port,
+				      struct switchdev_brport_flags flags)
+{
+	if (flags.mask & BR_MCAST_FLOOD)
+		lan966x_port_set_mcast_flood(port,
+					     !!(flags.val & BR_MCAST_FLOOD));
+}
+
+static int lan966x_port_pre_bridge_flags(struct lan966x_port *port,
+					 struct switchdev_brport_flags flags)
+{
+	if (flags.mask & ~BR_MCAST_FLOOD)
+		return -EINVAL;
+
+	return 0;
+}
+
 static void lan966x_update_fwd_mask(struct lan966x *lan966x)
 {
 	int i;
@@ -67,6 +100,12 @@  static int lan966x_port_attr_set(struct net_device *dev, const void *ctx,
 		return 0;
 
 	switch (attr->id) {
+	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+		lan966x_port_bridge_flags(port, attr->u.brport_flags);
+		break;
+	case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+		err = lan966x_port_pre_bridge_flags(port, attr->u.brport_flags);
+		break;
 	case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
 		lan966x_port_stp_state_set(port, attr->u.stp_state);
 		break;