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net: dsa: felix: restore multicast flood to CPU when NPI tagger reinitializes

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ocelot_init sets up PGID_MC to include the CPU port module, and that is
fine, but the ocelot-8021q tagger removes the CPU port module from the
unknown multicast replicator. So after a transition from the default
ocelot tagger towards ocelot-8021q and then again towards ocelot,
multicast flooding towards the CPU port module will be disabled.

Fixes: e21268efbe ("net: dsa: felix: perform switch setup for tag_8021q")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2021-02-12 17:15:57 +02:00 committed by David S. Miller
parent a8b659e7ff
commit 6edb9e8d45
1 changed files with 1 additions and 0 deletions
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drivers/net/dsa/ocelot/felix.c
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@ -411,6 +411,7 @@ static int felix_setup_tag_npi(struct dsa_switch *ds, int cpu)
*/ */
cpu_flood = ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)); cpu_flood = ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports));
ocelot_rmw_rix(ocelot, cpu_flood, cpu_flood, ANA_PGID_PGID, PGID_UC); ocelot_rmw_rix(ocelot, cpu_flood, cpu_flood, ANA_PGID_PGID, PGID_UC);
ocelot_rmw_rix(ocelot, cpu_flood, cpu_flood, ANA_PGID_PGID, PGID_MC);
return 0; return 0;
} }