diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-03-31 00:37:08 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-01 22:22:57 +0300 |
| commit | 812289960f720c4a075f8766d40a3c6b5840c0cd (patch) | |
| tree | 1e2b69533c254eca6549190958f654bd4daeb0f1 /drivers/net/dsa/mv88e6xxx/global2.h | |
| parent | f3645652216839aabcbd864b81b25ba7fbab9e82 (diff) | |
| download | linux-812289960f720c4a075f8766d40a3c6b5840c0cd.tar.xz | |
net: dsa: mv88e6xxx: use 4-bit port for PVT data
The Cross-chip Port Based VLAN Table (PVT) supports two indexing modes,
one using 5-bit for device and 4-bit for port, the other using 4-bit for
device and 5-bit for port, configured via the Global 2 Misc register.
Only 4 bits for the source port are needed when interconnecting 88E6xxx
switch devices since they all support less than 16 physical ports. The
full 5 bits are needed when interconnecting a device with 98DXxxx switch
devices since they support more than 16 physical ports.
Add a mv88e6xxx_pvt_setup helper to set the 4-bit port PVT mode, which
will be extended later to also initialize the PVT content.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/global2.h')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/global2.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h index f8b6dd93213a..71fb2ff541ba 100644 --- a/drivers/net/dsa/mv88e6xxx/global2.h +++ b/drivers/net/dsa/mv88e6xxx/global2.h @@ -42,6 +42,8 @@ int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip, int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip, struct ethtool_eeprom *eeprom, u8 *data); +int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip); + int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip); int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip); void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip); @@ -110,6 +112,11 @@ static inline int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip, return -EOPNOTSUPP; } +int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip) +{ + return -EOPNOTSUPP; +} + static inline int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip) { return -EOPNOTSUPP; |