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openwrt/target/linux/generic/hack-5.10/711-net-dsa-mv88e6xxx-disable-ATU-violation.patch

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kernel: DSA roaming fix for Marvell mv88e6xxx Marvell mv88e6xxx switch series cannot perform MAC learning from CPU-injected (FROM_CPU) DSA frames, which results in 2 issues. - excessive flooding, due to the fact that DSA treats those addresses as unknown - the risk of stale routes, which can lead to temporary packet loss Backport those patch series from netdev mailing list, which solve these issues by adding and clearing static entries to the switch's FDB. Add a hack patch to set default VID to 1 in port_fdb_{add,del}. Otherwise the static entries will be added to the switch's private FDB if VLAN filtering disabled, which will not work. The switch may generate an "ATU violation" warning when a client moves from the CPU port to a switch port because the static ATU entry added by DSA core still points to the CPU port. DSA core will then clear the static entry so it is not fatal. Disable the warning so it will not confuse users. Link: https://lore.kernel.org/netdev/20210106095136.224739-1-olteanv@gmail.com/ Link: https://lore.kernel.org/netdev/20210116012515.3152-1-tobias@waldekranz.com/ Ref: https://gitlab.nic.cz/turris/turris-build/-/issues/165 Signed-off-by: DENG Qingfang <dqfext@gmail.com>
2021-02-22 05:38:11 +00:00
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
kernel: bump 5.10 to 5.10.75 Deleted (upstreamed): bcm27xx/patches-5.10/950-0735-xhci-guard-accesses-to-ep_state-in-xhci_endpoint_res.patch [1] [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=dc3e0a20dbb9dbaa22f4a33dea34230f8c663c40 Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2021-10-20 12:07:59 +00:00
@@ -2659,6 +2659,9 @@ static int mv88e6xxx_setup_port(struct m
kernel: DSA roaming fix for Marvell mv88e6xxx Marvell mv88e6xxx switch series cannot perform MAC learning from CPU-injected (FROM_CPU) DSA frames, which results in 2 issues. - excessive flooding, due to the fact that DSA treats those addresses as unknown - the risk of stale routes, which can lead to temporary packet loss Backport those patch series from netdev mailing list, which solve these issues by adding and clearing static entries to the switch's FDB. Add a hack patch to set default VID to 1 in port_fdb_{add,del}. Otherwise the static entries will be added to the switch's private FDB if VLAN filtering disabled, which will not work. The switch may generate an "ATU violation" warning when a client moves from the CPU port to a switch port because the static ATU entry added by DSA core still points to the CPU port. DSA core will then clear the static entry so it is not fatal. Disable the warning so it will not confuse users. Link: https://lore.kernel.org/netdev/20210106095136.224739-1-olteanv@gmail.com/ Link: https://lore.kernel.org/netdev/20210116012515.3152-1-tobias@waldekranz.com/ Ref: https://gitlab.nic.cz/turris/turris-build/-/issues/165 Signed-off-by: DENG Qingfang <dqfext@gmail.com>
2021-02-22 05:38:11 +00:00
if (dsa_is_cpu_port(ds, port))
reg = 0;
+ /* Disable ATU member violation interrupt */
+ reg |= MV88E6XXX_PORT_ASSOC_VECTOR_IGNORE_WRONG;
+
err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ASSOC_VECTOR,
reg);
if (err)
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