[openwrt/openwrt] generic: 6.12: backport b53 upstream patches
LEDE Commits
lede-commits at lists.infradead.org
Wed May 28 22:50:44 PDT 2025
noltari pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/cf1721cb7b36c2c98e53fb66a8ce5f1173bee714
commit cf1721cb7b36c2c98e53fb66a8ce5f1173bee714
Author: Álvaro Fernández Rojas <noltari at gmail.com>
AuthorDate: Wed May 28 21:46:40 2025 +0200
generic: 6.12: backport b53 upstream patches
The support_eee patch is needed in order to prevent system hangs on bmips
devices.
c4f873c2b65c8 net: dsa: b53: mdio: add support for BCM53101
c86692fc2cb77 net: dsa: b53/bcm_sf2: implement .support_eee() method
f12b363887c70 net: dsa: use ethtool string helpers
Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
---
...-v6.13-net-dsa-use-ethtool-string-helpers.patch | 30 +++++++++
...b53-bcm_sf2-implement-.support_eee-method.patch | 69 ++++++++++++++++++++
...net-dsa-b53-mdio-add-support-for-BCM53101.patch | 76 ++++++++++++++++++++++
3 files changed, 175 insertions(+)
diff --git a/target/linux/generic/backport-6.12/710-01-v6.13-net-dsa-use-ethtool-string-helpers.patch b/target/linux/generic/backport-6.12/710-01-v6.13-net-dsa-use-ethtool-string-helpers.patch
new file mode 100644
index 0000000000..003a896f30
--- /dev/null
+++ b/target/linux/generic/backport-6.12/710-01-v6.13-net-dsa-use-ethtool-string-helpers.patch
@@ -0,0 +1,30 @@
+From f12b363887c706c40611fba645265527a8415832 Mon Sep 17 00:00:00 2001
+From: Rosen Penev <rosenp at gmail.com>
+Date: Sun, 27 Oct 2024 21:48:28 -0700
+Subject: [PATCH] net: dsa: use ethtool string helpers
+
+These are the preferred way to copy ethtool strings.
+
+Avoids incrementing pointers all over the place.
+
+Signed-off-by: Rosen Penev <rosenp at gmail.com>
+(for hellcreek driver)
+Reviewed-by: Kurt Kanzenbach <kurt at linutronix.de>
+Link: https://patch.msgid.link/20241028044828.1639668-1-rosenp@gmail.com
+Signed-off-by: Jakub Kicinski <kuba at kernel.org>
+---
+ drivers/net/dsa/b53/b53_common.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/net/dsa/b53/b53_common.c
++++ b/drivers/net/dsa/b53/b53_common.c
+@@ -1061,8 +1061,7 @@ void b53_get_strings(struct dsa_switch *
+
+ if (stringset == ETH_SS_STATS) {
+ for (i = 0; i < mib_size; i++)
+- strscpy(data + i * ETH_GSTRING_LEN,
+- mibs[i].name, ETH_GSTRING_LEN);
++ ethtool_puts(&data, mibs[i].name);
+ } else if (stringset == ETH_SS_PHY_STATS) {
+ phydev = b53_get_phy_device(ds, port);
+ if (!phydev)
diff --git a/target/linux/generic/backport-6.12/710-02-v6.14-net-dsa-b53-bcm_sf2-implement-.support_eee-method.patch b/target/linux/generic/backport-6.12/710-02-v6.14-net-dsa-b53-bcm_sf2-implement-.support_eee-method.patch
new file mode 100644
index 0000000000..ca0f61013c
--- /dev/null
+++ b/target/linux/generic/backport-6.12/710-02-v6.14-net-dsa-b53-bcm_sf2-implement-.support_eee-method.patch
@@ -0,0 +1,69 @@
+From c86692fc2cb77d94dd8c166c2b9017f196d02a84 Mon Sep 17 00:00:00 2001
+From: "Russell King (Oracle)" <rmk+kernel at armlinux.org.uk>
+Date: Tue, 10 Dec 2024 14:18:26 +0000
+Subject: [PATCH] net: dsa: b53/bcm_sf2: implement .support_eee() method
+
+Implement the .support_eee() method to indicate that EEE is not
+supported by two switch variants, rather than making these checks in
+the .set_mac_eee() and .get_mac_eee() methods.
+
+Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
+Reviewed-by: Florian Fainelli <florian.fainelli at broadcom.com>
+Reviewed-by: Vladimir Oltean <olteanv at gmail.com>
+Link: https://patch.msgid.link/E1tL14E-006cZU-Nc@rmk-PC.armlinux.org.uk
+Signed-off-by: Jakub Kicinski <kuba at kernel.org>
+---
+ drivers/net/dsa/b53/b53_common.c | 13 +++++++------
+ drivers/net/dsa/b53/b53_priv.h | 1 +
+ 2 files changed, 8 insertions(+), 6 deletions(-)
+
+--- a/drivers/net/dsa/b53/b53_common.c
++++ b/drivers/net/dsa/b53/b53_common.c
+@@ -2358,13 +2358,16 @@ int b53_eee_init(struct dsa_switch *ds,
+ }
+ EXPORT_SYMBOL(b53_eee_init);
+
+-int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e)
++bool b53_support_eee(struct dsa_switch *ds, int port)
+ {
+ struct b53_device *dev = ds->priv;
+
+- if (is5325(dev) || is5365(dev))
+- return -EOPNOTSUPP;
++ return !is5325(dev) && !is5365(dev);
++}
++EXPORT_SYMBOL(b53_support_eee);
+
++int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e)
++{
+ return 0;
+ }
+ EXPORT_SYMBOL(b53_get_mac_eee);
+@@ -2374,9 +2377,6 @@ int b53_set_mac_eee(struct dsa_switch *d
+ struct b53_device *dev = ds->priv;
+ struct ethtool_keee *p = &dev->ports[port].eee;
+
+- if (is5325(dev) || is5365(dev))
+- return -EOPNOTSUPP;
+-
+ p->eee_enabled = e->eee_enabled;
+ b53_eee_enable_set(ds, port, e->eee_enabled);
+
+@@ -2433,6 +2433,7 @@ static const struct dsa_switch_ops b53_s
+ .port_setup = b53_setup_port,
+ .port_enable = b53_enable_port,
+ .port_disable = b53_disable_port,
++ .support_eee = b53_support_eee,
+ .get_mac_eee = b53_get_mac_eee,
+ .set_mac_eee = b53_set_mac_eee,
+ .port_bridge_join = b53_br_join,
+--- a/drivers/net/dsa/b53/b53_priv.h
++++ b/drivers/net/dsa/b53/b53_priv.h
+@@ -387,6 +387,7 @@ int b53_enable_port(struct dsa_switch *d
+ void b53_disable_port(struct dsa_switch *ds, int port);
+ void b53_brcm_hdr_setup(struct dsa_switch *ds, int port);
+ int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy);
++bool b53_support_eee(struct dsa_switch *ds, int port);
+ int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e);
+ int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e);
+
diff --git a/target/linux/generic/backport-6.12/710-03-v6.15-net-dsa-b53-mdio-add-support-for-BCM53101.patch b/target/linux/generic/backport-6.12/710-03-v6.15-net-dsa-b53-mdio-add-support-for-BCM53101.patch
new file mode 100644
index 0000000000..900117af5e
--- /dev/null
+++ b/target/linux/generic/backport-6.12/710-03-v6.15-net-dsa-b53-mdio-add-support-for-BCM53101.patch
@@ -0,0 +1,76 @@
+From c4f873c2b65c839ff5e7c996bd9ef5a1e7eae11a Mon Sep 17 00:00:00 2001
+From: Torben Nielsen <torben.nielsen at prevas.dk>
+Date: Mon, 17 Feb 2025 09:05:01 +0100
+Subject: [PATCH] net: dsa: b53: mdio: add support for BCM53101
+
+BCM53101 is a ethernet switch, very similar to the BCM53115.
+Enable support for it, in the existing b53 dsa driver.
+
+Signed-off-by: Torben Nielsen <torben.nielsen at prevas.dk>
+Signed-off-by: Claus Stovgaard <claus.stovgaard at prevas.dk>
+Link: https://patch.msgid.link/20250217080503.1390282-1-claus.stovgaard@gmail.com
+Signed-off-by: Jakub Kicinski <kuba at kernel.org>
+---
+ drivers/net/dsa/b53/b53_common.c | 14 ++++++++++++++
+ drivers/net/dsa/b53/b53_mdio.c | 1 +
+ drivers/net/dsa/b53/b53_priv.h | 2 ++
+ 3 files changed, 17 insertions(+)
+
+--- a/drivers/net/dsa/b53/b53_common.c
++++ b/drivers/net/dsa/b53/b53_common.c
+@@ -2552,6 +2552,19 @@ static const struct b53_chip_data b53_sw
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
++ .chip_id = BCM53101_DEVICE_ID,
++ .dev_name = "BCM53101",
++ .vlans = 4096,
++ .enabled_ports = 0x11f,
++ .arl_bins = 4,
++ .arl_buckets = 512,
++ .vta_regs = B53_VTA_REGS,
++ .imp_port = 8,
++ .duplex_reg = B53_DUPLEX_STAT_GE,
++ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
++ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
++ },
++ {
+ .chip_id = BCM53115_DEVICE_ID,
+ .dev_name = "BCM53115",
+ .vlans = 4096,
+@@ -2932,6 +2945,7 @@ int b53_switch_detect(struct b53_device
+ return ret;
+
+ switch (id32) {
++ case BCM53101_DEVICE_ID:
+ case BCM53115_DEVICE_ID:
+ case BCM53125_DEVICE_ID:
+ case BCM53128_DEVICE_ID:
+--- a/drivers/net/dsa/b53/b53_mdio.c
++++ b/drivers/net/dsa/b53/b53_mdio.c
+@@ -374,6 +374,7 @@ static void b53_mdio_shutdown(struct mdi
+
+ static const struct of_device_id b53_of_match[] = {
+ { .compatible = "brcm,bcm5325" },
++ { .compatible = "brcm,bcm53101" },
+ { .compatible = "brcm,bcm53115" },
+ { .compatible = "brcm,bcm53125" },
+ { .compatible = "brcm,bcm53128" },
+--- a/drivers/net/dsa/b53/b53_priv.h
++++ b/drivers/net/dsa/b53/b53_priv.h
+@@ -66,6 +66,7 @@ enum {
+ BCM5395_DEVICE_ID = 0x95,
+ BCM5397_DEVICE_ID = 0x97,
+ BCM5398_DEVICE_ID = 0x98,
++ BCM53101_DEVICE_ID = 0x53101,
+ BCM53115_DEVICE_ID = 0x53115,
+ BCM53125_DEVICE_ID = 0x53125,
+ BCM53128_DEVICE_ID = 0x53128,
+@@ -190,6 +191,7 @@ static inline int is531x5(struct b53_dev
+ {
+ return dev->chip_id == BCM53115_DEVICE_ID ||
+ dev->chip_id == BCM53125_DEVICE_ID ||
++ dev->chip_id == BCM53101_DEVICE_ID ||
+ dev->chip_id == BCM53128_DEVICE_ID ||
+ dev->chip_id == BCM53134_DEVICE_ID;
+ }
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