From 878205101ff1bedfc504bfaa5e999bf426bacd89 Mon Sep 17 00:00:00 2001
From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Thu, 6 Aug 2015 01:44:08 -0400
Subject: [PATCH] net: dsa: mv88e6xxx: rework FDB add/del operations
Add a low level function for the ATU Load operation, and provide FDB add
and delete wrappers functions.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/mv88e6171.c | 2 +
drivers/net/dsa/mv88e6352.c | 2 +
drivers/net/dsa/mv88e6xxx.c | 116 +++++++++++++++++++++++-------------
drivers/net/dsa/mv88e6xxx.h | 8 +--
4 files changed, 83 insertions(+), 45 deletions(-)
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index b99fa50634bf..735f04cd83ee 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -116,6 +116,8 @@ struct dsa_switch_driver mv88e6171_switch_driver = {
.port_join_bridge = mv88e6xxx_join_bridge,
.port_leave_bridge = mv88e6xxx_leave_bridge,
.port_stp_update = mv88e6xxx_port_stp_update,
+ .port_fdb_add = mv88e6xxx_port_fdb_add,
+ .port_fdb_del = mv88e6xxx_port_fdb_del,
.port_fdb_getnext = mv88e6xxx_port_fdb_getnext,
};
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index 0a77135dd2b0..191fb2531efe 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -341,6 +341,8 @@ struct dsa_switch_driver mv88e6352_switch_driver = {
.port_join_bridge = mv88e6xxx_join_bridge,
.port_leave_bridge = mv88e6xxx_leave_bridge,
.port_stp_update = mv88e6xxx_port_stp_update,
+ .port_fdb_add = mv88e6xxx_port_fdb_add,
+ .port_fdb_del = mv88e6xxx_port_fdb_del,
.port_fdb_getnext = mv88e6xxx_port_fdb_getnext,
};
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 0e588b9809d9..9c6781de533b 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -1214,59 +1214,42 @@ static int _mv88e6xxx_atu_mac_read(struct dsa_switch *ds, u8 addr[ETH_ALEN])
return 0;
}
-static int __mv88e6xxx_port_fdb_cmd(struct dsa_switch *ds, int port,
- const unsigned char *addr, int state)
+static int _mv88e6xxx_atu_load(struct dsa_switch *ds,
+ struct mv88e6xxx_atu_entry *entry)
{
- struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
- u8 fid = ps->fid[port];
+ u16 reg = 0;
int ret;
ret = _mv88e6xxx_atu_wait(ds);
if (ret < 0)
return ret;
- ret = _mv88e6xxx_atu_mac_write(ds, addr);
+ ret = _mv88e6xxx_atu_mac_write(ds, entry->mac);
if (ret < 0)
return ret;
- ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_DATA,
- (0x10 << port) | state);
- if (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);
+ if (ret < 0)
return ret;
- ret = _mv88e6xxx_atu_cmd(ds, fid, GLOBAL_ATU_OP_LOAD_DB);
-
- return ret;
-}
-
-int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid)
-{
- int state = is_multicast_ether_addr(addr) ?
- GLOBAL_ATU_DATA_STATE_MC_STATIC :
- GLOBAL_ATU_DATA_STATE_UC_STATIC;
- struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
- int ret;
-
- mutex_lock(&ps->smi_mutex);
- ret = __mv88e6xxx_port_fdb_cmd(ds, port, addr, state);
- mutex_unlock(&ps->smi_mutex);
-
- return ret;
-}
-
-int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid)
-{
- struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
- int ret;
-
- mutex_lock(&ps->smi_mutex);
- ret = __mv88e6xxx_port_fdb_cmd(ds, port, addr,
- GLOBAL_ATU_DATA_STATE_UNUSED);
- mutex_unlock(&ps->smi_mutex);
-
- return ret;
+ return _mv88e6xxx_atu_cmd(ds, entry->fid, GLOBAL_ATU_OP_LOAD_DB);
}
static int _mv88e6xxx_atu_getnext(struct dsa_switch *ds, u16 fid,
@@ -1329,6 +1312,57 @@ static int _mv88e6xxx_port_vid_to_fid(struct dsa_switch *ds, int port, u16 vid)
return -ENOENT;
}
+static int _mv88e6xxx_port_fdb_load(struct dsa_switch *ds, int port, u16 vid,
+ const u8 addr[ETH_ALEN], u8 state)
+{
+ struct mv88e6xxx_atu_entry entry = { 0 };
+ int ret;
+
+ ret = _mv88e6xxx_port_vid_to_fid(ds, port, vid);
+ if (ret < 0)
+ return ret;
+
+ entry.fid = ret;
+ entry.state = state;
+ ether_addr_copy(entry.mac, addr);
+ if (state != GLOBAL_ATU_DATA_STATE_UNUSED) {
+ entry.trunk = false;
+ entry.portv_trunkid = BIT(port);
+ }
+
+ return _mv88e6xxx_atu_load(ds, &entry);
+}
+
+int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port, u16 vid,
+ const u8 addr[ETH_ALEN])
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ u8 state = is_multicast_ether_addr(addr) ?
+ GLOBAL_ATU_DATA_STATE_MC_STATIC :
+ GLOBAL_ATU_DATA_STATE_UC_STATIC;
+ int ret;
+
+ mutex_lock(&ps->smi_mutex);
+ ret = _mv88e6xxx_port_fdb_load(ds, port, vid, addr, state);
+ mutex_unlock(&ps->smi_mutex);
+
+ return ret;
+}
+
+int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port, u16 vid,
+ const u8 addr[ETH_ALEN])
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ u8 state = GLOBAL_ATU_DATA_STATE_UNUSED;
+ int ret;
+
+ mutex_lock(&ps->smi_mutex);
+ ret = _mv88e6xxx_port_fdb_load(ds, port, vid, addr, state);
+ mutex_unlock(&ps->smi_mutex);
+
+ return ret;
+}
+
int mv88e6xxx_port_fdb_getnext(struct dsa_switch *ds, int port, u16 *vid,
u8 addr[ETH_ALEN], bool *is_static)
{
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index ae640c7b6b0c..a8c727d846dd 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -422,13 +422,13 @@ int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
int mv88e6xxx_join_bridge(struct dsa_switch *ds, int port, u32 br_port_mask);
int mv88e6xxx_leave_bridge(struct dsa_switch *ds, int port, u32 br_port_mask);
int mv88e6xxx_port_stp_update(struct dsa_switch *ds, int port, u8 state);
-int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid);
-int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid);
int mv88e6xxx_phy_page_read(struct dsa_switch *ds, int port, int page, int reg);
int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page,
int reg, int val);
+int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port, u16 vid,
+ const u8 addr[ETH_ALEN]);
+int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port, u16 vid,
+ const u8 addr[ETH_ALEN]);
int mv88e6xxx_port_fdb_getnext(struct dsa_switch *ds, int port, u16 *vid,
u8 addr[ETH_ALEN], bool *is_static);