From 67c9ed1c8809d554082a30a1b38b460a6e8405c0 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Mon, 25 Jan 2021 16:04:48 +0100 Subject: [PATCH] net: dsa: mv88e6xxx: use mv88e6185_g1_vtu_getnext() for the 6250 mv88e6250_g1_vtu_getnext is almost identical to mv88e6185_g1_vtu_getnext, except for the 6250 only having 64 databases instead of 256. We can reduce code duplication by simply masking off the extra two garbage bits when assembling the fid from VTU op [3:0] and [11:8]. Reviewed-by: Tobias Waldekranz Tested-by: Tobias Waldekranz Reviewed-by: Florian Fainelli Signed-off-by: Rasmus Villemoes Reviewed-by: Vladimir Oltean Signed-off-by: Jakub Kicinski --- drivers/net/dsa/mv88e6xxx/chip.c | 2 +- drivers/net/dsa/mv88e6xxx/global1.h | 2 -- drivers/net/dsa/mv88e6xxx/global1_vtu.c | 36 ++----------------------- 3 files changed, 3 insertions(+), 37 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 2f976050a0d7..a579518d7333 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -4049,7 +4049,7 @@ static const struct mv88e6xxx_ops mv88e6250_ops = { .mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu, .pot_clear = mv88e6xxx_g2_pot_clear, .reset = mv88e6250_g1_reset, - .vtu_getnext = mv88e6250_g1_vtu_getnext, + .vtu_getnext = mv88e6185_g1_vtu_getnext, .vtu_loadpurge = mv88e6250_g1_vtu_loadpurge, .avb_ops = &mv88e6352_avb_ops, .ptp_ops = &mv88e6250_ptp_ops, diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h index 80a182c5b98a..d2dd2f4e4730 100644 --- a/drivers/net/dsa/mv88e6xxx/global1.h +++ b/drivers/net/dsa/mv88e6xxx/global1.h @@ -336,8 +336,6 @@ int mv88e6185_g1_vtu_getnext(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry); int mv88e6185_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry); -int mv88e6250_g1_vtu_getnext(struct mv88e6xxx_chip *chip, - struct mv88e6xxx_vtu_entry *entry); int mv88e6250_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry); int mv88e6352_g1_vtu_getnext(struct mv88e6xxx_chip *chip, diff --git a/drivers/net/dsa/mv88e6xxx/global1_vtu.c b/drivers/net/dsa/mv88e6xxx/global1_vtu.c index 7b96396be609..519ae48ba96e 100644 --- a/drivers/net/dsa/mv88e6xxx/global1_vtu.c +++ b/drivers/net/dsa/mv88e6xxx/global1_vtu.c @@ -336,39 +336,6 @@ int mv88e6xxx_g1_vtu_getnext(struct mv88e6xxx_chip *chip, return mv88e6xxx_g1_vtu_vid_read(chip, entry); } -int mv88e6250_g1_vtu_getnext(struct mv88e6xxx_chip *chip, - struct mv88e6xxx_vtu_entry *entry) -{ - u16 val; - int err; - - err = mv88e6xxx_g1_vtu_getnext(chip, entry); - if (err) - return err; - - if (entry->valid) { - err = mv88e6185_g1_vtu_data_read(chip, entry); - if (err) - return err; - - err = mv88e6185_g1_stu_data_read(chip, entry); - if (err) - return err; - - /* VTU DBNum[3:0] are located in VTU Operation 3:0 - * VTU DBNum[5:4] are located in VTU Operation 9:8 - */ - err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_OP, &val); - if (err) - return err; - - entry->fid = val & 0x000f; - entry->fid |= (val & 0x0300) >> 4; - } - - return 0; -} - int mv88e6185_g1_vtu_getnext(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry) { @@ -389,7 +356,7 @@ int mv88e6185_g1_vtu_getnext(struct mv88e6xxx_chip *chip, return err; /* VTU DBNum[3:0] are located in VTU Operation 3:0 - * VTU DBNum[7:4] are located in VTU Operation 11:8 + * VTU DBNum[7:4] ([5:4] for 6250) are located in VTU Operation 11:8 (9:8) */ err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_VTU_OP, &val); if (err) @@ -397,6 +364,7 @@ int mv88e6185_g1_vtu_getnext(struct mv88e6xxx_chip *chip, entry->fid = val & 0x000f; entry->fid |= (val & 0x0f00) >> 4; + entry->fid &= mv88e6xxx_num_databases(chip) - 1; } return 0;