diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2015-09-04 14:34:11 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-09-15 12:04:21 -0700 |
| commit | 37705b731500b0ce9fb4ead21a7cdfc241a401fe (patch) | |
| tree | 9ccfe45fb8fa9349c6bdc774748d3154426cf024 /drivers | |
| parent | 70cc99d10ca17b8688575d2579e5a2f6c4fa6f29 (diff) | |
| download | linux-stable-37705b731500b0ce9fb4ead21a7cdfc241a401fe.tar.gz linux-stable-37705b731500b0ce9fb4ead21a7cdfc241a401fe.tar.bz2 linux-stable-37705b731500b0ce9fb4ead21a7cdfc241a401fe.zip | |
net: dsa: mv88e6xxx: extract ATU data write access
Other ATU commands need to write the ATU data register. To ease the
introduction of such commands, extract the ATU data write access from
_mv88e6xxx_atu_load to its own function.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index bf455f9abf8b..25e103c5ed16 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -1047,6 +1047,29 @@ static int _mv88e6xxx_atu_cmd(struct dsa_switch *ds, u16 cmd) return _mv88e6xxx_atu_wait(ds); } +static int _mv88e6xxx_atu_data_write(struct dsa_switch *ds, + struct mv88e6xxx_atu_entry *entry) +{ + u16 data = entry->state & GLOBAL_ATU_DATA_STATE_MASK; + + if (entry->state != GLOBAL_ATU_DATA_STATE_UNUSED) { + unsigned int mask, shift; + + if (entry->trunk) { + data |= GLOBAL_ATU_DATA_TRUNK; + mask = GLOBAL_ATU_DATA_TRUNK_ID_MASK; + shift = GLOBAL_ATU_DATA_TRUNK_ID_SHIFT; + } else { + mask = GLOBAL_ATU_DATA_PORT_VECTOR_MASK; + shift = GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT; + } + + data |= (entry->portv_trunkid << shift) & mask; + } + + return _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_DATA, data); +} + static int _mv88e6xxx_flush_fid(struct dsa_switch *ds, int fid) { int ret; @@ -1761,7 +1784,6 @@ static int _mv88e6xxx_atu_mac_read(struct dsa_switch *ds, unsigned char *addr) static int _mv88e6xxx_atu_load(struct dsa_switch *ds, struct mv88e6xxx_atu_entry *entry) { - u16 reg = 0; int ret; ret = _mv88e6xxx_atu_wait(ds); @@ -1772,24 +1794,7 @@ static int _mv88e6xxx_atu_load(struct dsa_switch *ds, if (ret < 0) return ret; - if (entry->state != GLOBAL_ATU_DATA_STATE_UNUSED) { - unsigned int mask, shift; - - if (entry->trunk) { - reg |= GLOBAL_ATU_DATA_TRUNK; - mask = GLOBAL_ATU_DATA_TRUNK_ID_MASK; - shift = GLOBAL_ATU_DATA_TRUNK_ID_SHIFT; - } else { - mask = GLOBAL_ATU_DATA_PORT_VECTOR_MASK; - shift = GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT; - } - - reg |= (entry->portv_trunkid << shift) & mask; - } - - reg |= entry->state & GLOBAL_ATU_DATA_STATE_MASK; - - ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_DATA, reg); + ret = _mv88e6xxx_atu_data_write(ds, entry); if (ret < 0) return ret; |