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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2017-03-31 00:37:08 +0300
committerDavid S. Miller <davem@davemloft.net>2017-04-01 22:22:57 +0300
commit812289960f720c4a075f8766d40a3c6b5840c0cd (patch)
tree1e2b69533c254eca6549190958f654bd4daeb0f1 /drivers/net/dsa/mv88e6xxx/global2.h
parentf3645652216839aabcbd864b81b25ba7fbab9e82 (diff)
downloadlinux-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.h7
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;