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net: dsa: mv88e6xxx: add port FID accessors 

Add functions to port files to access the ports default FID.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Vivien Didelot 2016-11-04 03:23:29 +01:00 committed by David S. Miller
parent 5a7921f46d
commit b4e48c500e
3 changed files with 74 additions and 73 deletions
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77
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -1674,75 +1674,6 @@ loadpurge:
return _mv88e6xxx_vtu_cmd(chip, GLOBAL_VTU_OP_STU_LOAD_PURGE);
}
static int _mv88e6xxx_port_fid(struct mv88e6xxx_chip *chip, int port,
u16 *new, u16 *old)
{
struct dsa_switch *ds = chip->ds;
u16 upper_mask;
u16 fid;
u16 reg;
int err;
if (mv88e6xxx_num_databases(chip) == 4096)
upper_mask = 0xff;
else if (mv88e6xxx_num_databases(chip) == 256)
upper_mask = 0xf;
else
return -EOPNOTSUPP;
/* Port's default FID bits 3:0 are located in reg 0x06, offset 12 */
err = mv88e6xxx_port_read(chip, port, PORT_BASE_VLAN, &reg);
if (err)
return err;
fid = (reg & PORT_BASE_VLAN_FID_3_0_MASK) >> 12;
if (new) {
reg &= ~PORT_BASE_VLAN_FID_3_0_MASK;
reg |= (*new << 12) & PORT_BASE_VLAN_FID_3_0_MASK;
err = mv88e6xxx_port_write(chip, port, PORT_BASE_VLAN, reg);
if (err)
return err;
}
/* Port's default FID bits 11:4 are located in reg 0x05, offset 0 */
err = mv88e6xxx_port_read(chip, port, PORT_CONTROL_1, &reg);
if (err)
return err;
fid |= (reg & upper_mask) << 4;
if (new) {
reg &= ~upper_mask;
reg |= (*new >> 4) & upper_mask;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL_1, reg);
if (err)
return err;
netdev_dbg(ds->ports[port].netdev,
"FID %d (was %d)\n", *new, fid);
}
if (old)
*old = fid;
return 0;
}
static int _mv88e6xxx_port_fid_get(struct mv88e6xxx_chip *chip,
int port, u16 *fid)
{
return _mv88e6xxx_port_fid(chip, port, NULL, fid);
}
static int _mv88e6xxx_port_fid_set(struct mv88e6xxx_chip *chip,
int port, u16 fid)
{
return _mv88e6xxx_port_fid(chip, port, &fid, NULL);
}
static int _mv88e6xxx_fid_new(struct mv88e6xxx_chip *chip, u16 *fid)
{
DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID);
@ -1753,7 +1684,7 @@ static int _mv88e6xxx_fid_new(struct mv88e6xxx_chip *chip, u16 *fid)
/* Set every FID bit used by the (un)bridged ports */
for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
err = _mv88e6xxx_port_fid_get(chip, i, fid);
err = mv88e6xxx_port_get_fid(chip, i, fid);
if (err)
return err;
@ -2203,7 +2134,7 @@ static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port,
/* Null VLAN ID corresponds to the port private database */
if (vid == 0)
err = _mv88e6xxx_port_fid_get(chip, port, &vlan.fid);
err = mv88e6xxx_port_get_fid(chip, port, &vlan.fid);
else
err = _mv88e6xxx_vtu_get(chip, vid, &vlan, false);
if (err)
@ -2379,7 +2310,7 @@ static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port,
int err;
/* Dump port's default Filtering Information Database (VLAN ID 0) */
err = _mv88e6xxx_port_fid_get(chip, port, &fid);
err = mv88e6xxx_port_get_fid(chip, port, &fid);
if (err)
return err;
@ -2782,7 +2713,7 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
* database, and allow bidirectional communication between the
* CPU and DSA port(s), and the other ports.
*/
err = _mv88e6xxx_port_fid_set(chip, port, 0);
err = mv88e6xxx_port_set_fid(chip, port, 0);
if (err)
return err;

67
drivers/net/dsa/mv88e6xxx/port.c
View File

@ -61,6 +61,8 @@ int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state)
return 0;
}
/* Offset 0x05: Port Control 1 */
/* Offset 0x06: Port Based VLAN Map */
int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map)
@ -85,3 +87,68 @@ int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map)
return 0;
}
int mv88e6xxx_port_get_fid(struct mv88e6xxx_chip *chip, int port, u16 *fid)
{
const u16 upper_mask = (mv88e6xxx_num_databases(chip) - 1) >> 4;
u16 reg;
int err;
/* Port's default FID lower 4 bits are located in reg 0x06, offset 12 */
err = mv88e6xxx_port_read(chip, port, PORT_BASE_VLAN, &reg);
if (err)
return err;
*fid = (reg & 0xf000) >> 12;
/* Port's default FID upper bits are located in reg 0x05, offset 0 */
if (upper_mask) {
err = mv88e6xxx_port_read(chip, port, PORT_CONTROL_1, &reg);
if (err)
return err;
*fid |= (reg & upper_mask) << 4;
}
return 0;
}
int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, int port, u16 fid)
{
const u16 upper_mask = (mv88e6xxx_num_databases(chip) - 1) >> 4;
u16 reg;
int err;
if (fid >= mv88e6xxx_num_databases(chip))
return -EINVAL;
/* Port's default FID lower 4 bits are located in reg 0x06, offset 12 */
err = mv88e6xxx_port_read(chip, port, PORT_BASE_VLAN, &reg);
if (err)
return err;
reg &= 0x0fff;
reg |= (fid & 0x000f) << 12;
err = mv88e6xxx_port_write(chip, port, PORT_BASE_VLAN, reg);
if (err)
return err;
/* Port's default FID upper bits are located in reg 0x05, offset 0 */
if (upper_mask) {
err = mv88e6xxx_port_read(chip, port, PORT_CONTROL_1, &reg);
if (err)
return err;
reg &= ~upper_mask;
reg |= (fid >> 4) & upper_mask;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL_1, reg);
if (err)
return err;
}
netdev_dbg(chip->ds->ports[port].netdev, "FID set to %u\n", fid);
return 0;
}

3
drivers/net/dsa/mv88e6xxx/port.h
View File

@ -25,4 +25,7 @@ int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state);
int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map);
int mv88e6xxx_port_get_fid(struct mv88e6xxx_chip *chip, int port, u16 *fid);
int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, int port, u16 fid);
#endif /* _MV88E6XXX_PORT_H */