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net: dsa: rtl8366rb: Support fast aging

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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>
This commit is contained in:
Linus Walleij 2021-10-05 21:47:03 +02:00 committed by David S. Miller
parent 56d8bb71a8
commit 1fbd19e10b
1 changed files with 14 additions and 0 deletions
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14
drivers/net/dsa/rtl8366rb.c
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@ -1308,6 +1308,19 @@ rtl8366rb_port_bridge_flags(struct dsa_switch *ds, int port,
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 rtl8366rb_switch_ops = {
.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,
};