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net: dsa: mv88e6xxx: remap existing bridge members 

When a local port of a switch chip becomes a member of a bridge group,
we need to reprogram the Cross-chip Port Based VLAN Table (PVT) to allow
existing cross-chip bridge members to egress frames on the new ports.

There is no functional changes yet, since the PVT is still programmed
with all ones, allowing any external port to egress frames locally.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-03-30 17:37:13 -04:00 committed by David S. Miller
parent 240ea3ef70
commit e96a6e0275
1 changed files with 20 additions and 0 deletions
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20
drivers/net/dsa/mv88e6xxx/chip.c
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@ -2143,7 +2143,9 @@ static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port,
static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,
struct net_device *br)
{
struct dsa_switch *ds;
int port;
int dev;
int err;
/* Remap the Port VLAN of each local bridge group member */
@ -2155,6 +2157,24 @@ static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,
}
}
if (!mv88e6xxx_has_pvt(chip))
return 0;
/* Remap the Port VLAN of each cross-chip bridge group member */
for (dev = 0; dev < DSA_MAX_SWITCHES; ++dev) {
ds = chip->ds->dst->ds[dev];
if (!ds)
break;
for (port = 0; port < ds->num_ports; ++port) {
if (ds->ports[port].bridge_dev == br) {
err = mv88e6xxx_pvt_map(chip, dev, port);
if (err)
return err;
}
}
}
return 0;
}