From 567aa59a8b055bb5853bc7e5d5f8ac191216c9c7 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Mon, 1 May 2017 14:05:25 -0400 Subject: [PATCH] net: dsa: mv88e6xxx: simplify VTU entry getter Make the code which fetches or initializes a new VTU entry more concise. This allows us the get rid of the old underscore prefix naming. Signed-off-by: Vivien Didelot Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/chip.c | 62 +++++++++++++------------------- 1 file changed, 24 insertions(+), 38 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 51c8b2ff9760..aede0194e341 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1359,33 +1359,8 @@ static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid) return mv88e6xxx_g1_atu_flush(chip, *fid, true); } -static int _mv88e6xxx_vtu_new(struct mv88e6xxx_chip *chip, u16 vid, - struct mv88e6xxx_vtu_entry *entry) -{ - struct dsa_switch *ds = chip->ds; - struct mv88e6xxx_vtu_entry vlan = { - .valid = true, - .vid = vid, - }; - int i, err; - - err = mv88e6xxx_atu_new(chip, &vlan.fid); - if (err) - return err; - - /* exclude all ports except the CPU and DSA ports */ - for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) - vlan.member[i] = dsa_is_cpu_port(ds, i) || - dsa_is_dsa_port(ds, i) - ? GLOBAL_VTU_DATA_MEMBER_TAG_UNMODIFIED - : GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER; - - *entry = vlan; - return 0; -} - -static int _mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid, - struct mv88e6xxx_vtu_entry *entry, bool creat) +static int mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid, + struct mv88e6xxx_vtu_entry *entry, bool new) { int err; @@ -1399,17 +1374,28 @@ static int _mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid, if (err) return err; - if (entry->vid != vid || !entry->valid) { - if (!creat) - return -EOPNOTSUPP; - /* -ENOENT would've been more appropriate, but switchdev expects - * -EOPNOTSUPP to inform bridge about an eventual software VLAN. - */ + if (entry->vid == vid && entry->valid) + return 0; + + if (new) { + int i; + + /* Initialize a fresh VLAN entry */ + memset(entry, 0, sizeof(*entry)); + entry->valid = true; + entry->vid = vid; - err = _mv88e6xxx_vtu_new(chip, vid, entry); + /* Include only CPU and DSA ports */ + for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) + entry->member[i] = dsa_is_normal_port(chip->ds, i) ? + GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER : + GLOBAL_VTU_DATA_MEMBER_TAG_UNMODIFIED; + + return mv88e6xxx_atu_new(chip, &entry->fid); } - return err; + /* switchdev expects -EOPNOTSUPP to honor software VLANs */ + return -EOPNOTSUPP; } static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port, @@ -1519,7 +1505,7 @@ static int _mv88e6xxx_port_vlan_add(struct mv88e6xxx_chip *chip, int port, struct mv88e6xxx_vtu_entry vlan; int err; - err = _mv88e6xxx_vtu_get(chip, vid, &vlan, true); + err = mv88e6xxx_vtu_get(chip, vid, &vlan, true); if (err) return err; @@ -1564,7 +1550,7 @@ static int _mv88e6xxx_port_vlan_del(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry vlan; int i, err; - err = _mv88e6xxx_vtu_get(chip, vid, &vlan, false); + err = mv88e6xxx_vtu_get(chip, vid, &vlan, false); if (err) return err; @@ -1639,7 +1625,7 @@ static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port, if (vid == 0) err = mv88e6xxx_port_get_fid(chip, port, &vlan.fid); else - err = _mv88e6xxx_vtu_get(chip, vid, &vlan, false); + err = mv88e6xxx_vtu_get(chip, vid, &vlan, false); if (err) return err; -- 2.20.1