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From 8eb13420eb9ab4a4e2ebd612bf5dc9dba0039236 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 5 Oct 2021 21:47:03 +0200
Subject: [PATCH 09/11] net: dsa: rtl8366rb: Support fast aging
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This implements fast aging per-port using the special "security"
register, which will flush any learned L2 LUT entries on a port.
The vendor API just enabled setting and clearing this bit, so
we set it to age out any entries on the port and then we clear
it again.
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Cc: Mauri Sandberg <sandberg@mailfence.com>
Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/rtl8366rb.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/drivers/net/dsa/rtl8366rb.c
+++ b/drivers/net/dsa/rtl8366rb.c
@@ -1308,6 +1308,19 @@ rtl8366rb_port_bridge_flags(struct dsa_s
return 0;
}
+static void
+rtl8366rb_port_fast_age(struct dsa_switch *ds, int port)
+{
+ struct realtek_smi *smi = ds->priv;
+
+ /* This will age out any learned L2 entries */
+ regmap_update_bits(smi->map, RTL8366RB_SECURITY_CTRL,
+ BIT(port), BIT(port));
+ /* Restore the normal state of things */
+ regmap_update_bits(smi->map, RTL8366RB_SECURITY_CTRL,
+ BIT(port), 0);
+}
+
static int rtl8366rb_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
{
struct realtek_smi *smi = ds->priv;
@@ -1720,6 +1733,7 @@ static const struct dsa_switch_ops rtl83
.port_disable = rtl8366rb_port_disable,
.port_pre_bridge_flags = rtl8366rb_port_pre_bridge_flags,
.port_bridge_flags = rtl8366rb_port_bridge_flags,
+ .port_fast_age = rtl8366rb_port_fast_age,
.port_change_mtu = rtl8366rb_change_mtu,
.port_max_mtu = rtl8366rb_max_mtu,
};
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