diff options
author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2016-02-26 13:16:04 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2016-03-01 16:24:52 -0500 |
commit | 2db9ce1fd9a34ea560ff120bf763007ddf99c7bb (patch) | |
tree | dc8dfb653918ec6399550b99855b9aa2d07f5c95 /drivers/net/dsa | |
parent | 3285f9e8695b26b1e15a58f21aff21087a7e7555 (diff) | |
download | linux-2db9ce1fd9a34ea560ff120bf763007ddf99c7bb.tar.bz2 |
net: dsa: mv88e6xxx: assign default FDB to ports
Restore per-port FDB. Assign them on setup, allow adding and deleting
addresses into them, and dump them.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
-rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 96 | ||||
-rw-r--r-- | drivers/net/dsa/mv88e6xxx.h | 2 |
2 files changed, 91 insertions, 7 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index b4b2f05134ba..0f064889ea08 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -1458,14 +1458,82 @@ loadpurge: return _mv88e6xxx_vtu_cmd(ds, GLOBAL_VTU_OP_STU_LOAD_PURGE); } +static int _mv88e6xxx_port_fid(struct dsa_switch *ds, int port, u16 *new, + u16 *old) +{ + u16 fid; + int ret; + + /* Port's default FID bits 3:0 are located in reg 0x06, offset 12 */ + ret = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_BASE_VLAN); + if (ret < 0) + return ret; + + fid = (ret & PORT_BASE_VLAN_FID_3_0_MASK) >> 12; + + if (new) { + ret &= ~PORT_BASE_VLAN_FID_3_0_MASK; + ret |= (*new << 12) & PORT_BASE_VLAN_FID_3_0_MASK; + + ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_BASE_VLAN, + ret); + if (ret < 0) + return ret; + } + + /* Port's default FID bits 11:4 are located in reg 0x05, offset 0 */ + ret = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_CONTROL_1); + if (ret < 0) + return ret; + + fid |= (ret & PORT_CONTROL_1_FID_11_4_MASK) << 4; + + if (new) { + ret &= ~PORT_CONTROL_1_FID_11_4_MASK; + ret |= (*new >> 4) & PORT_CONTROL_1_FID_11_4_MASK; + + ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_CONTROL_1, + ret); + if (ret < 0) + return ret; + + netdev_dbg(ds->ports[port], "FID %d (was %d)\n", *new, fid); + } + + if (old) + *old = fid; + + return 0; +} + +static int _mv88e6xxx_port_fid_get(struct dsa_switch *ds, int port, u16 *fid) +{ + return _mv88e6xxx_port_fid(ds, port, NULL, fid); +} + +static int _mv88e6xxx_port_fid_set(struct dsa_switch *ds, int port, u16 fid) +{ + return _mv88e6xxx_port_fid(ds, port, &fid, NULL); +} + static int _mv88e6xxx_fid_new(struct dsa_switch *ds, u16 *fid) { + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID); struct mv88e6xxx_vtu_stu_entry vlan; - int err; + int i, err; bitmap_zero(fid_bitmap, MV88E6XXX_N_FID); + /* Set every FID bit used by the (un)bridged ports */ + for (i = 0; i < ps->num_ports; ++i) { + err = _mv88e6xxx_port_fid_get(ds, i, fid); + if (err) + return err; + + set_bit(*fid, fid_bitmap); + } + /* Set every FID bit used by the VLAN entries */ err = _mv88e6xxx_vtu_vid_write(ds, GLOBAL_VTU_VID_MASK); if (err) @@ -1824,7 +1892,11 @@ static int _mv88e6xxx_port_fdb_load(struct dsa_switch *ds, int port, struct mv88e6xxx_vtu_stu_entry vlan; int err; - err = _mv88e6xxx_vtu_get(ds, vid, &vlan, false); + /* Null VLAN ID corresponds to the port private database */ + if (vid == 0) + err = _mv88e6xxx_port_fid_get(ds, port, &vlan.fid); + else + err = _mv88e6xxx_vtu_get(ds, vid, &vlan, false); if (err) return err; @@ -1843,10 +1915,6 @@ int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port, const struct switchdev_obj_port_fdb *fdb, struct switchdev_trans *trans) { - /* We don't use per-port FDB */ - if (fdb->vid == 0) - return -EOPNOTSUPP; - /* We don't need any dynamic resource from the kernel (yet), * so skip the prepare phase. */ @@ -1982,10 +2050,20 @@ int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port, struct mv88e6xxx_vtu_stu_entry vlan = { .vid = GLOBAL_VTU_VID_MASK, /* all ones */ }; + u16 fid; int err; mutex_lock(&ps->smi_mutex); + /* Dump port's default Filtering Information Database (VLAN ID 0) */ + err = _mv88e6xxx_port_fid_get(ds, port, &fid); + if (err) + goto unlock; + + err = _mv88e6xxx_port_fdb_dump_one(ds, fid, 0, port, fdb, cb); + if (err) + goto unlock; + /* Dump VLANs' Filtering Information Databases */ err = _mv88e6xxx_vtu_vid_write(ds, vlan.vid); if (err) @@ -2286,9 +2364,13 @@ static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port) if (ret) goto abort; - /* Port based VLAN map: do not give each port its own address + /* Port based VLAN map: give each port its own address * database, and allow every port to egress frames on all other ports. */ + ret = _mv88e6xxx_port_fid_set(ds, port, port + 1); + if (ret) + goto abort; + reg = BIT(ps->num_ports) - 1; /* all ports */ reg &= ~BIT(port); /* except itself */ ret = _mv88e6xxx_port_vlan_map_set(ds, port, reg); diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h index 9df331e85bf8..85a416620f7c 100644 --- a/drivers/net/dsa/mv88e6xxx.h +++ b/drivers/net/dsa/mv88e6xxx.h @@ -133,7 +133,9 @@ #define PORT_CONTROL_STATE_LEARNING 0x02 #define PORT_CONTROL_STATE_FORWARDING 0x03 #define PORT_CONTROL_1 0x05 +#define PORT_CONTROL_1_FID_11_4_MASK (0xff << 0) #define PORT_BASE_VLAN 0x06 +#define PORT_BASE_VLAN_FID_3_0_MASK (0xf << 12) #define PORT_DEFAULT_VLAN 0x07 #define PORT_DEFAULT_VLAN_MASK 0xfff #define PORT_CONTROL_2 0x08 |