diff options
| author |   Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2016-03-31 16:53:44 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-04-04 21:31:35 -0400 |
| commit | 11ea809f1a74b006f08e7dad0b257e06c817f313 (patch) | |
| tree | 26743b6a2f56d3a0ed06b8c8e12bf8eb029f77e2 | |
| parent | net: dsa: mv88e6xxx: variable number of databases (diff) | |
| download | linux-dev-11ea809f1a74b006f08e7dad0b257e06c817f313.tar.xz linux-dev-11ea809f1a74b006f08e7dad0b257e06c817f313.zip | |
net: dsa: mv88e6xxx: support 256 databases
The 6185 family of devices has only 256 address databases. Their 8-bit
FID for ATU and VTU operations are split into ATU Control and ATU/VTU
Operation registers.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index f103319dbe14..75a4abc595b1 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -1003,6 +1003,20 @@ static int _mv88e6xxx_atu_cmd(struct dsa_switch *ds, u16 fid, u16 cmd) ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_FID, fid); if (ret < 0) return ret; + } else if (mv88e6xxx_num_databases(ds) == 256) { + /* ATU DBNum[7:4] are located in ATU Control 15:12 */ + ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_ATU_CONTROL); + if (ret < 0) + return ret; + + ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_CONTROL, + (ret & 0xfff) | + ((fid << 8) & 0xf000)); + if (ret < 0) + return ret; + + /* ATU DBNum[3:0] are located in ATU Operation 3:0 */ + cmd |= fid & 0xf; } ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_OP, cmd); @@ -1373,6 +1387,17 @@ static int _mv88e6xxx_vtu_getnext(struct dsa_switch *ds, return ret; next.fid = ret & GLOBAL_VTU_FID_MASK; + } else if (mv88e6xxx_num_databases(ds) == 256) { + /* VTU DBNum[7:4] are located in VTU Operation 11:8, and + * VTU DBNum[3:0] are located in VTU Operation 3:0 + */ + ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, + GLOBAL_VTU_OP); + if (ret < 0) + return ret; + + next.fid = (ret & 0xf00) >> 4; + next.fid |= ret & 0xf; } if (mv88e6xxx_has_stu(ds)) { @@ -1443,6 +1468,7 @@ unlock: static int _mv88e6xxx_vtu_loadpurge(struct dsa_switch *ds, struct mv88e6xxx_vtu_stu_entry *entry) { + u16 op = GLOBAL_VTU_OP_VTU_LOAD_PURGE; u16 reg = 0; int ret; @@ -1470,6 +1496,12 @@ static int _mv88e6xxx_vtu_loadpurge(struct dsa_switch *ds, ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_VTU_FID, reg); if (ret < 0) return ret; + } else if (mv88e6xxx_num_databases(ds) == 256) { + /* VTU DBNum[7:4] are located in VTU Operation 11:8, and + * VTU DBNum[3:0] are located in VTU Operation 3:0 + */ + op |= (entry->fid & 0xf0) << 8; + op |= entry->fid & 0xf; } reg = GLOBAL_VTU_VID_VALID; @@ -1479,7 +1511,7 @@ loadpurge: if (ret < 0) return ret; - return _mv88e6xxx_vtu_cmd(ds, GLOBAL_VTU_OP_VTU_LOAD_PURGE); + return _mv88e6xxx_vtu_cmd(ds, op); } static int _mv88e6xxx_stu_getnext(struct dsa_switch *ds, u8 sid, @@ -1564,6 +1596,8 @@ static int _mv88e6xxx_port_fid(struct dsa_switch *ds, int port, u16 *new, if (mv88e6xxx_num_databases(ds) == 4096) upper_mask = 0xff; + else if (mv88e6xxx_num_databases(ds) == 256) + upper_mask = 0xf; else return -EOPNOTSUPP; |