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f89904ad78
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77 Removed upstreamed: generic/backport-6.1/707-v6.8-01-net-phy-at803x-fix-passing-the-wrong-reference-for-c.patch[1] generic/backport-6.1/796-v6.8-ipmr-fix-kernel-panic-when-forwarding-mcast-packets.patch[2] All other patches automatically rebased. 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.77&id=7dc0fefd37dd5fb03fdac6e3e01b1c2291148ccb 2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.77&id=d2f1b7fe74afd66298dbb3c7b39e7b62e4df1724 Build system: x86/64 Build-tested: x86/64/AMD Cezanne Run-tested: x86/64/AMD Cezanne Signed-off-by: John Audia <therealgraysky@proton.me>
147 lines
4.8 KiB
Diff
147 lines
4.8 KiB
Diff
From 23cfc7172e5297d0bee49ac6f6f8248d1cf0820d Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Sun, 30 Jul 2023 09:41:10 +0200
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Subject: [PATCH 1/4] net: dsa: qca8k: make learning configurable and keep off
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if standalone
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Address learning should initially be turned off by the driver for port
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operation in standalone mode, then the DSA core handles changes to it
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via ds->ops->port_bridge_flags().
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Currently this is not the case for qca8k where learning is enabled
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unconditionally in qca8k_setup for every user port.
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Handle ports configured in standalone mode by making the learning
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configurable and not enabling it by default.
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Implement .port_pre_bridge_flags and .port_bridge_flags dsa ops to
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enable learning for bridge that request it and tweak
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.port_stp_state_set to correctly disable learning when port is
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configured in standalone mode.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
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Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
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Link: https://lore.kernel.org/r/20230730074113.21889-2-ansuelsmth@gmail.com
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Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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---
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drivers/net/dsa/qca/qca8k-8xxx.c | 7 +++--
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drivers/net/dsa/qca/qca8k-common.c | 48 ++++++++++++++++++++++++++++++
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drivers/net/dsa/qca/qca8k.h | 6 ++++
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3 files changed, 58 insertions(+), 3 deletions(-)
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--- a/drivers/net/dsa/qca/qca8k-8xxx.c
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+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
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@@ -1905,9 +1905,8 @@ qca8k_setup(struct dsa_switch *ds)
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if (ret)
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return ret;
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- /* Enable ARP Auto-learning by default */
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- ret = regmap_set_bits(priv->regmap, QCA8K_PORT_LOOKUP_CTRL(i),
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- QCA8K_PORT_LOOKUP_LEARN);
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+ ret = regmap_clear_bits(priv->regmap, QCA8K_PORT_LOOKUP_CTRL(i),
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+ QCA8K_PORT_LOOKUP_LEARN);
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if (ret)
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return ret;
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@@ -2013,6 +2012,8 @@ static const struct dsa_switch_ops qca8k
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.port_change_mtu = qca8k_port_change_mtu,
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.port_max_mtu = qca8k_port_max_mtu,
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.port_stp_state_set = qca8k_port_stp_state_set,
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+ .port_pre_bridge_flags = qca8k_port_pre_bridge_flags,
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+ .port_bridge_flags = qca8k_port_bridge_flags,
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.port_bridge_join = qca8k_port_bridge_join,
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.port_bridge_leave = qca8k_port_bridge_leave,
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.port_fast_age = qca8k_port_fast_age,
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--- a/drivers/net/dsa/qca/qca8k-common.c
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+++ b/drivers/net/dsa/qca/qca8k-common.c
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@@ -565,9 +565,26 @@ int qca8k_get_mac_eee(struct dsa_switch
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return 0;
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}
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+static int qca8k_port_configure_learning(struct dsa_switch *ds, int port,
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+ bool learning)
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+{
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+ struct qca8k_priv *priv = ds->priv;
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+
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+ if (learning)
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+ return regmap_set_bits(priv->regmap,
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+ QCA8K_PORT_LOOKUP_CTRL(port),
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+ QCA8K_PORT_LOOKUP_LEARN);
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+ else
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+ return regmap_clear_bits(priv->regmap,
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+ QCA8K_PORT_LOOKUP_CTRL(port),
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+ QCA8K_PORT_LOOKUP_LEARN);
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+}
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+
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void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
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{
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+ struct dsa_port *dp = dsa_to_port(ds, port);
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struct qca8k_priv *priv = ds->priv;
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+ bool learning = false;
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u32 stp_state;
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switch (state) {
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@@ -582,8 +599,11 @@ void qca8k_port_stp_state_set(struct dsa
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break;
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case BR_STATE_LEARNING:
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stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
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+ learning = dp->learning;
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break;
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case BR_STATE_FORWARDING:
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+ learning = dp->learning;
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+ fallthrough;
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default:
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stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
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break;
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@@ -591,6 +611,34 @@ void qca8k_port_stp_state_set(struct dsa
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qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
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QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
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+
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+ qca8k_port_configure_learning(ds, port, learning);
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+}
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+
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+int qca8k_port_pre_bridge_flags(struct dsa_switch *ds, int port,
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+ struct switchdev_brport_flags flags,
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+ struct netlink_ext_ack *extack)
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+{
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+ if (flags.mask & ~BR_LEARNING)
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+int qca8k_port_bridge_flags(struct dsa_switch *ds, int port,
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+ struct switchdev_brport_flags flags,
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+ struct netlink_ext_ack *extack)
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+{
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+ int ret;
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+
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+ if (flags.mask & BR_LEARNING) {
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+ ret = qca8k_port_configure_learning(ds, port,
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+ flags.val & BR_LEARNING);
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+ if (ret)
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+ return ret;
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+ }
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+
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+ return 0;
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}
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int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
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--- a/drivers/net/dsa/qca/qca8k.h
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+++ b/drivers/net/dsa/qca/qca8k.h
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@@ -448,6 +448,12 @@ int qca8k_get_mac_eee(struct dsa_switch
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/* Common bridge function */
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void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state);
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+int qca8k_port_pre_bridge_flags(struct dsa_switch *ds, int port,
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+ struct switchdev_brport_flags flags,
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+ struct netlink_ext_ack *extack);
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+int qca8k_port_bridge_flags(struct dsa_switch *ds, int port,
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+ struct switchdev_brport_flags flags,
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+ struct netlink_ext_ack *extack);
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int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
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struct dsa_bridge bridge,
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bool *tx_fwd_offload,
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