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Message-Id: <20250901-add_l2_switching-v5-4-5f13e46860d5@renesas.com>
Date: Mon, 01 Sep 2025 06:58:08 +0200
From: Michael Dege <michael.dege@...esas.com>
To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
Niklas Söderlund <niklas.soderlund@...natech.se>,
Paul Barker <paul@...rker.dev>, Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
linux-kernel@...r.kernel.org, Michael Dege <michael.dege@...esas.com>,
Nikita Yushchenko <nikita.yoush@...entembedded.com>
Subject: [PATCH net-next v5 4/4] net: renesas: rswitch: add modifiable
ageing time
Allow the setting of the MAC table aging in the R-Car S4 Rswitch
using the SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME attribute.
Signed-off-by: Michael Dege <michael.dege@...esas.com>
---
drivers/net/ethernet/renesas/rswitch_l2.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/net/ethernet/renesas/rswitch_l2.c b/drivers/net/ethernet/renesas/rswitch_l2.c
index 49a24464dbb0cf3f3219a0699fc4671ddd71ef03..4a69ec77d69c600530189f3f5e86da165022bc4e 100644
--- a/drivers/net/ethernet/renesas/rswitch_l2.c
+++ b/drivers/net/ethernet/renesas/rswitch_l2.c
@@ -193,6 +193,24 @@ static int rswitch_netdevice_event(struct notifier_block *nb,
return NOTIFY_OK;
}
+static int rswitch_update_ageing_time(struct net_device *ndev, clock_t time)
+{
+ struct rswitch_device *rdev = netdev_priv(ndev);
+ u32 reg_val;
+
+ if (!is_rdev(ndev))
+ return -ENODEV;
+
+ if (!FIELD_FIT(FWMACAGC_MACAGT, time))
+ return -EINVAL;
+
+ reg_val = FIELD_PREP(FWMACAGC_MACAGT, time);
+ reg_val |= FWMACAGC_MACAGE | FWMACAGC_MACAGSL;
+ iowrite32(reg_val, rdev->priv->addr + FWMACAGC);
+
+ return 0;
+}
+
static int rswitch_port_attr_set(struct net_device *ndev, const void *ctx,
const struct switchdev_attr *attr,
struct netlink_ext_ack *extack)
@@ -200,6 +218,8 @@ static int rswitch_port_attr_set(struct net_device *ndev, const void *ctx,
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
return rswitch_port_update_stp_state(ndev, attr->u.stp_state);
+ case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
+ return rswitch_update_ageing_time(ndev, attr->u.ageing_time);
default:
return -EOPNOTSUPP;
}
--
2.50.1
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