summaryrefslogtreecommitdiff
path: root/drivers/net/dsa/mv88e6xxx.c
diff options
context:
space:
mode:
authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2015-09-04 14:34:11 -0400
committerDavid S. Miller <davem@davemloft.net>2015-09-15 12:04:21 -0700
commit37705b731500b0ce9fb4ead21a7cdfc241a401fe (patch)
tree9ccfe45fb8fa9349c6bdc774748d3154426cf024 /drivers/net/dsa/mv88e6xxx.c
parent70cc99d10ca17b8688575d2579e5a2f6c4fa6f29 (diff)
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/net/dsa/mv88e6xxx.c')
-rw-r--r--drivers/net/dsa/mv88e6xxx.c43
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;