From 462a088c474832b19ff2730de1e6bea66d399c23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sat, 15 Oct 2022 23:01:29 +0200
Subject: Add Turris kernel (includes patches from OpenWrt)

---
 ...-dsa-rtl8366rb-Support-disabling-learning.patch | 115 +++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 pkgs/patches-linux-5.15/774-v5.16-08-net-dsa-rtl8366rb-Support-disabling-learning.patch

(limited to 'pkgs/patches-linux-5.15/774-v5.16-08-net-dsa-rtl8366rb-Support-disabling-learning.patch')

diff --git a/pkgs/patches-linux-5.15/774-v5.16-08-net-dsa-rtl8366rb-Support-disabling-learning.patch b/pkgs/patches-linux-5.15/774-v5.16-08-net-dsa-rtl8366rb-Support-disabling-learning.patch
new file mode 100644
index 0000000..8306eb5
--- /dev/null
+++ b/pkgs/patches-linux-5.15/774-v5.16-08-net-dsa-rtl8366rb-Support-disabling-learning.patch
@@ -0,0 +1,115 @@
+From 831a3d26bea0d14f8563eecf96def660a74a3000 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Tue, 5 Oct 2021 21:47:02 +0200
+Subject: [PATCH 08/11] net: dsa: rtl8366rb: Support disabling learning
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The RTL8366RB hardware supports disabling learning per-port
+so let's make use of this feature. Rename some unfortunately
+named registers in the process.
+
+Suggested-by: Vladimir Oltean <olteanv@gmail.com>
+Cc: Alvin Šipraga <alsi@bang-olufsen.dk>
+Cc: Mauri Sandberg <sandberg@mailfence.com>
+Cc: Florian Fainelli <f.fainelli@gmail.com>
+Cc: DENG Qingfang <dqfext@gmail.com>
+Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/dsa/rtl8366rb.c | 50 ++++++++++++++++++++++++++++++++-----
+ 1 file changed, 44 insertions(+), 6 deletions(-)
+
+--- a/drivers/net/dsa/rtl8366rb.c
++++ b/drivers/net/dsa/rtl8366rb.c
+@@ -14,6 +14,7 @@
+ 
+ #include <linux/bitops.h>
+ #include <linux/etherdevice.h>
++#include <linux/if_bridge.h>
+ #include <linux/interrupt.h>
+ #include <linux/irqdomain.h>
+ #include <linux/irqchip/chained_irq.h>
+@@ -42,9 +43,12 @@
+ /* Port Enable Control register */
+ #define RTL8366RB_PECR				0x0001
+ 
+-/* Switch Security Control registers */
+-#define RTL8366RB_SSCR0				0x0002
+-#define RTL8366RB_SSCR1				0x0003
++/* Switch per-port learning disablement register */
++#define RTL8366RB_PORT_LEARNDIS_CTRL		0x0002
++
++/* Security control, actually aging register */
++#define RTL8366RB_SECURITY_CTRL			0x0003
++
+ #define RTL8366RB_SSCR2				0x0004
+ #define RTL8366RB_SSCR2_DROP_UNKNOWN_DA		BIT(0)
+ 
+@@ -927,13 +931,14 @@ static int rtl8366rb_setup(struct dsa_sw
+ 		/* layer 2 size, see rtl8366rb_change_mtu() */
+ 		rb->max_mtu[i] = 1532;
+ 
+-	/* Enable learning for all ports */
+-	ret = regmap_write(smi->map, RTL8366RB_SSCR0, 0);
++	/* Disable learning for all ports */
++	ret = regmap_write(smi->map, RTL8366RB_PORT_LEARNDIS_CTRL,
++			   RTL8366RB_PORT_ALL);
+ 	if (ret)
+ 		return ret;
+ 
+ 	/* Enable auto ageing for all ports */
+-	ret = regmap_write(smi->map, RTL8366RB_SSCR1, 0);
++	ret = regmap_write(smi->map, RTL8366RB_SECURITY_CTRL, 0);
+ 	if (ret)
+ 		return ret;
+ 
+@@ -1272,6 +1277,37 @@ static int rtl8366rb_vlan_filtering(stru
+ 	return ret;
+ }
+ 
++static int
++rtl8366rb_port_pre_bridge_flags(struct dsa_switch *ds, int port,
++				struct switchdev_brport_flags flags,
++				struct netlink_ext_ack *extack)
++{
++	/* We support enabling/disabling learning */
++	if (flags.mask & ~(BR_LEARNING))
++		return -EINVAL;
++
++	return 0;
++}
++
++static int
++rtl8366rb_port_bridge_flags(struct dsa_switch *ds, int port,
++			    struct switchdev_brport_flags flags,
++			    struct netlink_ext_ack *extack)
++{
++	struct realtek_smi *smi = ds->priv;
++	int ret;
++
++	if (flags.mask & BR_LEARNING) {
++		ret = regmap_update_bits(smi->map, RTL8366RB_PORT_LEARNDIS_CTRL,
++					 BIT(port),
++					 (flags.val & BR_LEARNING) ? 0 : BIT(port));
++		if (ret)
++			return ret;
++	}
++
++	return 0;
++}
++
+ static int rtl8366rb_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
+ {
+ 	struct realtek_smi *smi = ds->priv;
+@@ -1682,6 +1718,8 @@ static const struct dsa_switch_ops rtl83
+ 	.port_vlan_del = rtl8366_vlan_del,
+ 	.port_enable = rtl8366rb_port_enable,
+ 	.port_disable = rtl8366rb_port_disable,
++	.port_pre_bridge_flags = rtl8366rb_port_pre_bridge_flags,
++	.port_bridge_flags = rtl8366rb_port_bridge_flags,
+ 	.port_change_mtu = rtl8366rb_change_mtu,
+ 	.port_max_mtu = rtl8366rb_max_mtu,
+ };
-- 
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