From: LGA1150 <dqfext@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Russell King <linux@armlinux.org.uk>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: DENG Qingfang <dqfext@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH net-next] net: dsa: rtl8366rb: support bridge offloading
Date: Tue, 16 Mar 2021 01:01:44 +0800 [thread overview]
Message-ID: <20210315170144.2081099-1-dqfext@gmail.com> (raw)
From: DENG Qingfang <dqfext@gmail.com>
Use port isolation registers to configure bridge offloading.
Remove the VLAN init, as we have proper CPU tag and bridge offloading
support now.
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
---
Changes since RFC:
Fix build error
drivers/net/dsa/rtl8366rb.c | 71 +++++++++++++++++++++++++++++++++----
1 file changed, 65 insertions(+), 6 deletions(-)
diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c
index a89093bc6c6a..bbcfdd84f0e9 100644
--- a/drivers/net/dsa/rtl8366rb.c
+++ b/drivers/net/dsa/rtl8366rb.c
@@ -300,6 +300,12 @@
#define RTL8366RB_INTERRUPT_STATUS_REG 0x0442
#define RTL8366RB_NUM_INTERRUPT 14 /* 0..13 */
+/* Port isolation registers */
+#define RTL8366RB_PORT_ISO_BASE 0x0F08
+#define RTL8366RB_PORT_ISO(pnum) (RTL8366RB_PORT_ISO_BASE + (pnum))
+#define RTL8366RB_PORT_ISO_EN BIT(0)
+#define RTL8366RB_PORT_ISO_PORTS_MASK GENMASK(7, 1)
+
/* bits 0..5 enable force when cleared */
#define RTL8366RB_MAC_FORCE_CTRL_REG 0x0F11
@@ -835,6 +841,15 @@ static int rtl8366rb_setup(struct dsa_switch *ds)
if (ret)
return ret;
+ /* Isolate user ports */
+ for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) {
+ ret = regmap_write(smi->map, RTL8366RB_PORT_ISO(i),
+ RTL8366RB_PORT_ISO_EN |
+ BIT(RTL8366RB_PORT_NUM_CPU + 1));
+ if (ret)
+ return ret;
+ }
+
/* Set up the "green ethernet" feature */
ret = rtl8366rb_jam_table(rtl8366rb_green_jam,
ARRAY_SIZE(rtl8366rb_green_jam), smi, false);
@@ -963,10 +978,6 @@ static int rtl8366rb_setup(struct dsa_switch *ds)
return ret;
}
- ret = rtl8366_init_vlan(smi);
- if (ret)
- return ret;
-
ret = rtl8366rb_setup_cascaded_irq(smi);
if (ret)
dev_info(smi->dev, "no interrupt support\n");
@@ -977,8 +988,6 @@ static int rtl8366rb_setup(struct dsa_switch *ds)
return -ENODEV;
}
- ds->configure_vlan_while_not_filtering = false;
-
return 0;
}
@@ -1127,6 +1136,54 @@ rtl8366rb_port_disable(struct dsa_switch *ds, int port)
rb8366rb_set_port_led(smi, port, false);
}
+static int
+rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port,
+ struct net_device *bridge)
+{
+ struct realtek_smi *smi = ds->priv;
+ unsigned int port_bitmap = 0;
+ int ret, i;
+
+ for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) {
+ if (i == port)
+ continue;
+ if (dsa_to_port(ds, i)->bridge_dev != bridge)
+ continue;
+ ret = regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(i),
+ 0, BIT(port + 1));
+ if (ret)
+ return ret;
+
+ port_bitmap |= BIT(i);
+ }
+
+ return regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(port),
+ 0, port_bitmap << 1);
+}
+
+static void
+rtl8366rb_port_bridge_leave(struct dsa_switch *ds, int port,
+ struct net_device *bridge)
+{
+ struct realtek_smi *smi = ds->priv;
+ unsigned int port_bitmap = 0;
+ int i;
+
+ for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) {
+ if (i == port)
+ continue;
+ if (dsa_to_port(ds, i)->bridge_dev != bridge)
+ continue;
+ regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(i),
+ BIT(port + 1), 0);
+
+ port_bitmap |= BIT(i);
+ }
+
+ regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(port),
+ port_bitmap << 1, 0);
+}
+
static int rtl8366rb_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
{
struct realtek_smi *smi = ds->priv;
@@ -1510,6 +1567,8 @@ static const struct dsa_switch_ops rtl8366rb_switch_ops = {
.get_strings = rtl8366_get_strings,
.get_ethtool_stats = rtl8366_get_ethtool_stats,
.get_sset_count = rtl8366_get_sset_count,
+ .port_bridge_join = rtl8366rb_port_bridge_join,
+ .port_bridge_leave = rtl8366rb_port_bridge_leave,
.port_vlan_filtering = rtl8366_vlan_filtering,
.port_vlan_add = rtl8366_vlan_add,
.port_vlan_del = rtl8366_vlan_del,
--
2.25.1
next reply other threads:[~2021-03-15 17:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 17:01 LGA1150 [this message]
2021-03-15 21:49 ` [PATCH net-next] net: dsa: rtl8366rb: support bridge offloading Vladimir Oltean
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