[PATCH net-next] net: dsa: use switchdev obj for VLAN add/del ops
From: Vivien Didelot
Date: Thu Oct 29 2015 - 10:29:43 EST
Simplify DSA by pushing the switchdev objects for VLAN add and delete
operations down to its drivers. Currently only mv88e6xxx is affected.
Signed-off-by: Vivien Didelot <vivien.didelot@xxxxxxxxxxxxxxxxxxxx>
---
drivers/net/dsa/mv88e6171.c | 2 +-
drivers/net/dsa/mv88e6352.c | 2 +-
drivers/net/dsa/mv88e6xxx.c | 108 +++++++++++++++++++++++++++++++++++---------
drivers/net/dsa/mv88e6xxx.h | 12 +++--
include/net/dsa.h | 13 ++++--
net/dsa/slave.c | 29 ++++--------
6 files changed, 115 insertions(+), 51 deletions(-)
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 2c8eb6f..1bd876e 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -115,7 +115,7 @@ struct dsa_switch_driver mv88e6171_switch_driver = {
.get_regs = mv88e6xxx_get_regs,
.port_stp_update = mv88e6xxx_port_stp_update,
.port_pvid_get = mv88e6xxx_port_pvid_get,
- .port_pvid_set = mv88e6xxx_port_pvid_set,
+ .port_vlan_prepare = mv88e6xxx_port_vlan_prepare,
.port_vlan_add = mv88e6xxx_port_vlan_add,
.port_vlan_del = mv88e6xxx_port_vlan_del,
.vlan_getnext = mv88e6xxx_vlan_getnext,
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index cbf4dd8..4458d6a 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -342,7 +342,7 @@ struct dsa_switch_driver mv88e6352_switch_driver = {
.get_regs = mv88e6xxx_get_regs,
.port_stp_update = mv88e6xxx_port_stp_update,
.port_pvid_get = mv88e6xxx_port_pvid_get,
- .port_pvid_set = mv88e6xxx_port_pvid_set,
+ .port_vlan_prepare = mv88e6xxx_port_vlan_prepare,
.port_vlan_add = mv88e6xxx_port_vlan_add,
.port_vlan_del = mv88e6xxx_port_vlan_del,
.vlan_getnext = mv88e6xxx_vlan_getnext,
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index b1b14f5..c404466 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -1121,6 +1121,19 @@ int mv88e6xxx_port_stp_update(struct dsa_switch *ds, int port, u8 state)
return 0;
}
+static int _mv88e6xxx_port_pvid_get(struct dsa_switch *ds, int port, u16 *pvid)
+{
+ int ret;
+
+ ret = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_DEFAULT_VLAN);
+ if (ret < 0)
+ return ret;
+
+ *pvid = ret & PORT_DEFAULT_VLAN_MASK;
+
+ return 0;
+}
+
int mv88e6xxx_port_pvid_get(struct dsa_switch *ds, int port, u16 *pvid)
{
int ret;
@@ -1134,9 +1147,9 @@ int mv88e6xxx_port_pvid_get(struct dsa_switch *ds, int port, u16 *pvid)
return 0;
}
-int mv88e6xxx_port_pvid_set(struct dsa_switch *ds, int port, u16 pvid)
+static int _mv88e6xxx_port_pvid_set(struct dsa_switch *ds, int port, u16 pvid)
{
- return mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_DEFAULT_VLAN,
+ return _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_DEFAULT_VLAN,
pvid & PORT_DEFAULT_VLAN_MASK);
}
@@ -1441,61 +1454,87 @@ static int _mv88e6xxx_vlan_init(struct dsa_switch *ds, u16 vid,
return 0;
}
-int mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, u16 vid,
- bool untagged)
+int mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans)
+{
+ /* We don't need any dynamic resource from the kernel (yet),
+ * so skip the prepare phase.
+ */
+ return 0;
+}
+
+static int _mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, u16 vid,
+ bool untagged)
{
- struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
struct mv88e6xxx_vtu_stu_entry vlan;
int err;
- mutex_lock(&ps->smi_mutex);
-
err = _mv88e6xxx_vtu_vid_write(ds, vid - 1);
if (err)
- goto unlock;
+ return err;
err = _mv88e6xxx_vtu_getnext(ds, &vlan);
if (err)
- goto unlock;
+ return err;
if (vlan.vid != vid || !vlan.valid) {
err = _mv88e6xxx_vlan_init(ds, vid, &vlan);
if (err)
- goto unlock;
+ return err;
}
vlan.data[port] = untagged ?
GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED :
GLOBAL_VTU_DATA_MEMBER_TAG_TAGGED;
- err = _mv88e6xxx_vtu_loadpurge(ds, &vlan);
+ return _mv88e6xxx_vtu_loadpurge(ds, &vlan);
+}
+
+int mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ u16 vid;
+ int err = 0;
+
+ mutex_lock(&ps->smi_mutex);
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
+ err = _mv88e6xxx_port_vlan_add(ds, port, vid, untagged);
+ if (err)
+ goto unlock;
+ }
+
+ /* no PVID with ranges, otherwise it's a bug */
+ if (pvid)
+ err = _mv88e6xxx_port_pvid_set(ds, port, vid);
unlock:
mutex_unlock(&ps->smi_mutex);
return err;
}
-int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, u16 vid)
+int _mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, u16 vid)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
struct mv88e6xxx_vtu_stu_entry vlan;
int i, err;
- mutex_lock(&ps->smi_mutex);
-
err = _mv88e6xxx_vtu_vid_write(ds, vid - 1);
if (err)
- goto unlock;
+ return err;
err = _mv88e6xxx_vtu_getnext(ds, &vlan);
if (err)
- goto unlock;
+ return err;
if (vlan.vid != vid || !vlan.valid ||
- vlan.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) {
- err = -ENOENT;
- goto unlock;
- }
+ vlan.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER)
+ return -ENOENT;
vlan.data[port] = GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER;
@@ -1513,9 +1552,36 @@ int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, u16 vid)
err = _mv88e6xxx_vtu_loadpurge(ds, &vlan);
if (err)
+ return err;
+
+ return _mv88e6xxx_atu_remove(ds, vlan.fid, port, false);
+}
+
+int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ u16 pvid, vid;
+ int err = 0;
+
+ mutex_lock(&ps->smi_mutex);
+
+ err = _mv88e6xxx_port_pvid_get(ds, port, &pvid);
+ if (err)
goto unlock;
- err = _mv88e6xxx_atu_remove(ds, vlan.fid, port, false);
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
+ err = _mv88e6xxx_port_vlan_del(ds, port, vid);
+ if (err)
+ goto unlock;
+
+ if (vid == pvid) {
+ err = _mv88e6xxx_port_pvid_set(ds, port, 0);
+ if (err)
+ goto unlock;
+ }
+ }
+
unlock:
mutex_unlock(&ps->smi_mutex);
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 6f9ed5d..e0692b9 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -457,11 +457,15 @@ int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
struct phy_device *phydev, struct ethtool_eee *e);
int mv88e6xxx_port_stp_update(struct dsa_switch *ds, int port, u8 state);
+int mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans);
+int mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans);
+int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan);
int mv88e6xxx_port_pvid_get(struct dsa_switch *ds, int port, u16 *vid);
-int mv88e6xxx_port_pvid_set(struct dsa_switch *ds, int port, u16 vid);
-int mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, u16 vid,
- bool untagged);
-int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, u16 vid);
int mv88e6xxx_vlan_getnext(struct dsa_switch *ds, u16 *vid,
unsigned long *ports, unsigned long *untagged);
int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port,
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 98ccbde..82a4c60 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -200,6 +200,7 @@ static inline u8 dsa_upstream_port(struct dsa_switch *ds)
struct switchdev_trans;
struct switchdev_obj;
struct switchdev_obj_port_fdb;
+struct switchdev_obj_port_vlan;
struct dsa_switch_driver {
struct list_head list;
@@ -309,11 +310,15 @@ struct dsa_switch_driver {
/*
* VLAN support
*/
+ int (*port_vlan_prepare)(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans);
+ int (*port_vlan_add)(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans);
+ int (*port_vlan_del)(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan);
int (*port_pvid_get)(struct dsa_switch *ds, int port, u16 *pvid);
- int (*port_pvid_set)(struct dsa_switch *ds, int port, u16 pvid);
- int (*port_vlan_add)(struct dsa_switch *ds, int port, u16 vid,
- bool untagged);
- int (*port_vlan_del)(struct dsa_switch *ds, int port, u16 vid);
int (*vlan_getnext)(struct dsa_switch *ds, u16 *vid,
unsigned long *ports, unsigned long *untagged);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 481754e..7bc787b 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -247,11 +247,10 @@ static int dsa_slave_port_vlan_add(struct net_device *dev,
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
- u16 vid;
int err;
if (switchdev_trans_ph_prepare(trans)) {
- if (!ds->drv->port_vlan_add || !ds->drv->port_pvid_set)
+ if (!ds->drv->port_vlan_prepare || !ds->drv->port_vlan_add)
return -EOPNOTSUPP;
/* If the requested port doesn't belong to the same bridge as
@@ -262,16 +261,14 @@ static int dsa_slave_port_vlan_add(struct net_device *dev,
vlan->vid_end);
if (err)
return err;
+
+ err = ds->drv->port_vlan_prepare(ds, p->port, vlan, trans);
+ if (err)
+ return err;
} else {
- for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
- err = ds->drv->port_vlan_add(ds, p->port, vid,
- vlan->flags &
- BRIDGE_VLAN_INFO_UNTAGGED);
- if (!err && vlan->flags & BRIDGE_VLAN_INFO_PVID)
- err = ds->drv->port_pvid_set(ds, p->port, vid);
- if (err)
- return err;
- }
+ err = ds->drv->port_vlan_add(ds, p->port, vlan, trans);
+ if (err)
+ return err;
}
return 0;
@@ -282,19 +279,11 @@ static int dsa_slave_port_vlan_del(struct net_device *dev,
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
- u16 vid;
- int err;
if (!ds->drv->port_vlan_del)
return -EOPNOTSUPP;
- for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
- err = ds->drv->port_vlan_del(ds, p->port, vid);
- if (err)
- return err;
- }
-
- return 0;
+ return ds->drv->port_vlan_del(ds, p->port, vlan);
}
static int dsa_slave_port_vlan_dump(struct net_device *dev,
--
2.6.2
--
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