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net: dsa: mv88e6xxx: add VLAN support to FDB dump 

Add an helper function to read the next valid VLAN entry for a given
port. It is used in the VID to FID conversion function to retrieve the
forwarding database assigned to a given VLAN port.

Finally update the FDB getnext operation to iterate on the next valid
port VLAN when the end of the current database is reached.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2015-08-13 12:52:20 -04:00 committed by David S. Miller
parent b8fee95710
commit 02512b6fcc
1 changed files with 40 additions and 2 deletions
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42
drivers/net/dsa/mv88e6xxx.c
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@ -1307,6 +1307,29 @@ static int _mv88e6xxx_vtu_getnext(struct dsa_switch *ds, u16 vid,
return 0;
}
static int _mv88e6xxx_port_vtu_getnext(struct dsa_switch *ds, int port, u16 vid,
struct mv88e6xxx_vtu_stu_entry *entry)
{
int err;
do {
if (vid == 4095)
return -ENOENT;
err = _mv88e6xxx_vtu_getnext(ds, vid, entry);
if (err)
return err;
if (!entry->valid)
return -ENOENT;
vid = entry->vid;
} while (entry->data[port] != GLOBAL_VTU_DATA_MEMBER_TAG_TAGGED &&
entry->data[port] != GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED);
return 0;
}
int mv88e6xxx_vlan_getnext(struct dsa_switch *ds, u16 *vid,
unsigned long *ports, unsigned long *untagged)
{
@ -1421,10 +1444,19 @@ static int _mv88e6xxx_atu_load(struct dsa_switch *ds,
static int _mv88e6xxx_port_vid_to_fid(struct dsa_switch *ds, int port, u16 vid)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
struct mv88e6xxx_vtu_stu_entry vlan;
int err;
if (vid == 0)
return ps->fid[port];
err = _mv88e6xxx_port_vtu_getnext(ds, port, vid - 1, &vlan);
if (err)
return err;
if (vlan.vid == vid)
return vlan.fid;
return -ENOENT;
}
@ -1548,8 +1580,14 @@ int mv88e6xxx_port_fdb_getnext(struct dsa_switch *ds, int port,
do {
if (is_broadcast_ether_addr(addr)) {
ret = -ENOENT;
goto unlock;
struct mv88e6xxx_vtu_stu_entry vtu;
ret = _mv88e6xxx_port_vtu_getnext(ds, port, *vid, &vtu);
if (ret < 0)
goto unlock;
*vid = vtu.vid;
fid = vtu.fid;
}
ret = _mv88e6xxx_atu_getnext(ds, fid, addr, &next);