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net: dsa: mv88e6xxx: get STU entry on VTU GetNext 

Now that the code reads both VTU and STU data on VTU GetNext operation,
fetch the STU entry data of a VTU entry at the same time.

The STU data bits are masked with the VTU data bits and they are now all
read at the same time a VTU GetNext operation is issued.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Vivien Didelot 2017-05-01 14:05:20 -04:00 committed by David S. Miller
parent 66a8e1f933
commit ef6fcea37f
3 changed files with 25 additions and 1 deletions
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2
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -1292,7 +1292,7 @@ static int _mv88e6xxx_vtu_getnext(struct mv88e6xxx_chip *chip,
}
if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_STU)) {
err = mv88e6xxx_g1_vtu_sid_read(chip, &next);
err = mv88e6xxx_g1_vtu_stu_get(chip, &next);
if (err)
return err;
}

2
drivers/net/dsa/mv88e6xxx/global1.h
View File

@ -72,6 +72,8 @@ int mv88e6xxx_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry);
int mv88e6xxx_g1_vtu_stu_getnext(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *vtu);
int mv88e6xxx_g1_vtu_stu_get(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *vtu);
int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip);
#endif /* _MV88E6XXX_GLOBAL1_H */

22
drivers/net/dsa/mv88e6xxx/global1_vtu.c
View File

@ -194,6 +194,28 @@ int mv88e6xxx_g1_vtu_stu_getnext(struct mv88e6xxx_chip *chip,
return mv88e6xxx_g1_vtu_vid_read(chip, entry);
}
int mv88e6xxx_g1_vtu_stu_get(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *vtu)
{
struct mv88e6xxx_vtu_entry stu;
int err;
err = mv88e6xxx_g1_vtu_sid_read(chip, vtu);
if (err)
return err;
stu.sid = vtu->sid - 1;
err = mv88e6xxx_g1_vtu_stu_getnext(chip, &stu);
if (err)
return err;
if (stu.sid != vtu->sid || !stu.valid)
return -EINVAL;
return 0;
}
int mv88e6xxx_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{