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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>
54 lines
2.0 KiB
Diff
54 lines
2.0 KiB
Diff
From 18e8feae4a807994e4906d659116d249bfecd4c5 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 09:41:11 +0200
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Subject: [PATCH 2/4] net: dsa: qca8k: limit user ports access to the first CPU
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port on setup
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In preparation for multi-CPU support, set CPU port LOOKUP MEMBER outside
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the port loop and setup the LOOKUP MEMBER mask for user ports only to
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the first CPU port.
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This is to handle flooding condition where every CPU port is set as
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target and prevent packet duplication for unknown frames from user ports.
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Secondary CPU port LOOKUP MEMBER mask will be setup later when
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port_change_master will be implemented.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Reviewed-by: Simon Horman <simon.horman@corigine.com>
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Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
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Link: https://lore.kernel.org/r/20230730074113.21889-3-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 | 14 ++++++--------
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1 file changed, 6 insertions(+), 8 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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@@ -1885,18 +1885,16 @@ qca8k_setup(struct dsa_switch *ds)
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if (ret)
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return ret;
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+ /* CPU port gets connected to all user ports of the switch */
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+ ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(cpu_port),
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+ QCA8K_PORT_LOOKUP_MEMBER, dsa_user_ports(ds));
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+ if (ret)
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+ return ret;
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+
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/* Setup connection between CPU port & user ports
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* Configure specific switch configuration for ports
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*/
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for (i = 0; i < QCA8K_NUM_PORTS; i++) {
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- /* CPU port gets connected to all user ports of the switch */
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- if (dsa_is_cpu_port(ds, i)) {
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- ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(i),
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- QCA8K_PORT_LOOKUP_MEMBER, dsa_user_ports(ds));
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- if (ret)
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- return ret;
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- }
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-
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/* Individual user ports get connected to CPU port only */
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if (dsa_is_user_port(ds, i)) {
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ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(i),
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