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Message-Id: <1438667683-18872-4-git-send-email-vivien.didelot@savoirfairelinux.com>
Date: Tue, 4 Aug 2015 01:54:42 -0400
From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
"David S. Miller" <davem@...emloft.net>,
Guenter Roeck <linux@...ck-us.net>,
Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Scott Feldman <sfeldma@...il.com>,
Jiri Pirko <jiri@...nulli.us>,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: [PATCH 3/4] net: dsa: add support for switchdev FDB objects
Remove the fdb_{add,del,getnext} function pointer in favor of new
port_fdb_{add,del,getnext}.
Implement the switchdev_port_obj_{add,del,dump} functions in DSA to
support the SWITCHDEV_OBJ_PORT_FDB objects.
These functions are called from switchdev_port_bridge_{get,set,del}link.
Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
drivers/net/dsa/mv88e6171.c | 3 -
drivers/net/dsa/mv88e6352.c | 3 -
include/net/dsa.h | 16 ++--
net/dsa/slave.c | 221 ++++++++++++++++++++++++--------------------
4 files changed, 129 insertions(+), 114 deletions(-)
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 1c78084..cfa21ed 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -116,9 +116,6 @@ 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,
- .fdb_add = mv88e6xxx_port_fdb_add,
- .fdb_del = mv88e6xxx_port_fdb_del,
- .fdb_getnext = mv88e6xxx_port_fdb_getnext,
};
MODULE_ALIAS("platform:mv88e6171");
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index af210ef..eb4630f 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -341,9 +341,6 @@ 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,
- .fdb_add = mv88e6xxx_port_fdb_add,
- .fdb_del = mv88e6xxx_port_fdb_del,
- .fdb_getnext = mv88e6xxx_port_fdb_getnext,
};
MODULE_ALIAS("platform:mv88e6172");
diff --git a/include/net/dsa.h b/include/net/dsa.h
index fbca63b..a090c8a 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -296,12 +296,16 @@ struct dsa_switch_driver {
u32 br_port_mask);
int (*port_stp_update)(struct dsa_switch *ds, int port,
u8 state);
- int (*fdb_add)(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid);
- int (*fdb_del)(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid);
- int (*fdb_getnext)(struct dsa_switch *ds, int port,
- unsigned char *addr, bool *is_static);
+
+ /*
+ * Forwarding database
+ */
+ int (*port_fdb_add)(struct dsa_switch *ds, int port, u16 vid,
+ u8 addr[ETH_ALEN]);
+ int (*port_fdb_del)(struct dsa_switch *ds, int port, u16 vid,
+ u8 addr[ETH_ALEN]);
+ int (*port_fdb_getnext)(struct dsa_switch *ds, int port, u16 *vid,
+ u8 addr[ETH_ALEN], bool *is_static);
};
void register_switch_driver(struct dsa_switch_driver *type);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 0010c69..0f99a17 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -19,6 +19,7 @@
#include <net/switchdev.h>
#include <linux/if_bridge.h>
#include <linux/netpoll.h>
+#include <linux/if_vlan.h>
#include "dsa_priv.h"
/* slave mii_bus handling ***************************************************/
@@ -200,105 +201,6 @@ out:
return 0;
}
-static int dsa_slave_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
- struct net_device *dev,
- const unsigned char *addr, u16 vid, u16 nlm_flags)
-{
- struct dsa_slave_priv *p = netdev_priv(dev);
- struct dsa_switch *ds = p->parent;
- int ret = -EOPNOTSUPP;
-
- if (ds->drv->fdb_add)
- ret = ds->drv->fdb_add(ds, p->port, addr, vid);
-
- return ret;
-}
-
-static int dsa_slave_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
- struct net_device *dev,
- const unsigned char *addr, u16 vid)
-{
- struct dsa_slave_priv *p = netdev_priv(dev);
- struct dsa_switch *ds = p->parent;
- int ret = -EOPNOTSUPP;
-
- if (ds->drv->fdb_del)
- ret = ds->drv->fdb_del(ds, p->port, addr, vid);
-
- return ret;
-}
-
-static int dsa_slave_fill_info(struct net_device *dev, struct sk_buff *skb,
- const unsigned char *addr, u16 vid,
- bool is_static,
- u32 portid, u32 seq, int type,
- unsigned int flags)
-{
- struct nlmsghdr *nlh;
- struct ndmsg *ndm;
-
- nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
- if (!nlh)
- return -EMSGSIZE;
-
- ndm = nlmsg_data(nlh);
- ndm->ndm_family = AF_BRIDGE;
- ndm->ndm_pad1 = 0;
- ndm->ndm_pad2 = 0;
- ndm->ndm_flags = NTF_EXT_LEARNED;
- ndm->ndm_type = 0;
- ndm->ndm_ifindex = dev->ifindex;
- ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
-
- if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
- goto nla_put_failure;
-
- if (vid && nla_put_u16(skb, NDA_VLAN, vid))
- goto nla_put_failure;
-
- nlmsg_end(skb, nlh);
- return 0;
-
-nla_put_failure:
- nlmsg_cancel(skb, nlh);
- return -EMSGSIZE;
-}
-
-/* Dump information about entries, in response to GETNEIGH */
-static int dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
- struct net_device *dev,
- struct net_device *filter_dev, int idx)
-{
- struct dsa_slave_priv *p = netdev_priv(dev);
- struct dsa_switch *ds = p->parent;
- unsigned char addr[ETH_ALEN] = { 0 };
- int ret;
-
- if (!ds->drv->fdb_getnext)
- return -EOPNOTSUPP;
-
- for (; ; idx++) {
- bool is_static;
-
- ret = ds->drv->fdb_getnext(ds, p->port, addr, &is_static);
- if (ret < 0)
- break;
-
- if (idx < cb->args[0])
- continue;
-
- ret = dsa_slave_fill_info(dev, skb, addr, 0,
- is_static,
- NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- RTM_NEWNEIGH, NLM_F_MULTI);
- if (ret < 0)
- break;
- }
-
- return idx;
-}
-
static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct dsa_slave_priv *p = netdev_priv(dev);
@@ -364,6 +266,115 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
return ret;
}
+static int dsa_slave_port_fdb_add(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ struct switchdev_obj_fdb *fdb = &obj->u.fdb;
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+ int err;
+
+ if (obj->trans == SWITCHDEV_TRANS_PREPARE)
+ err = ds->drv->port_fdb_add ? 0 : -EOPNOTSUPP;
+ else if (obj->trans == SWITCHDEV_TRANS_COMMIT)
+ err = ds->drv->port_fdb_add(ds, p->port, fdb->vid, fdb->addr);
+ else
+ err = -EOPNOTSUPP;
+
+ return err;
+}
+
+static int dsa_slave_port_fdb_del(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ struct switchdev_obj_fdb *fdb = &obj->u.fdb;
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+
+ if (!ds->drv->port_fdb_del)
+ return -EOPNOTSUPP;
+
+ return ds->drv->port_fdb_del(ds, p->port, fdb->vid, fdb->addr);
+}
+
+static int dsa_slave_port_fdb_dump(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ struct switchdev_obj_fdb *fdb = &obj->u.fdb;
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+ int err;
+
+ if (!ds->drv->port_fdb_getnext)
+ return -EOPNOTSUPP;
+
+ memset(fdb, 0, sizeof(*fdb));
+
+ for (;;) {
+ err = ds->drv->port_fdb_getnext(ds, p->port, &fdb->vid,
+ fdb->addr, &fdb->is_static);
+ if (err)
+ break;
+
+ err = obj->cb(dev, obj);
+ if (err)
+ break;
+ }
+
+ return err == -ENOENT ? 0 : err;
+}
+
+static int dsa_slave_port_obj_add(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ int err;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_PORT_FDB:
+ err = dsa_slave_port_fdb_add(dev, obj);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int dsa_slave_port_obj_del(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ int err;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_PORT_FDB:
+ err = dsa_slave_port_fdb_del(dev, obj);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int dsa_slave_port_obj_dump(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ int err;
+
+ switch (obj->id) {
+ case SWITCHDEV_OBJ_PORT_FDB:
+ err = dsa_slave_port_fdb_dump(dev, obj);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
static int dsa_slave_bridge_port_join(struct net_device *dev,
struct net_device *br)
{
@@ -765,9 +776,9 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_change_rx_flags = dsa_slave_change_rx_flags,
.ndo_set_rx_mode = dsa_slave_set_rx_mode,
.ndo_set_mac_address = dsa_slave_set_mac_address,
- .ndo_fdb_add = dsa_slave_fdb_add,
- .ndo_fdb_del = dsa_slave_fdb_del,
- .ndo_fdb_dump = dsa_slave_fdb_dump,
+ .ndo_fdb_add = switchdev_port_fdb_add,
+ .ndo_fdb_del = switchdev_port_fdb_del,
+ .ndo_fdb_dump = switchdev_port_fdb_dump,
.ndo_do_ioctl = dsa_slave_ioctl,
.ndo_get_iflink = dsa_slave_get_iflink,
#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -775,11 +786,17 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup,
.ndo_poll_controller = dsa_slave_poll_controller,
#endif
+ .ndo_bridge_getlink = switchdev_port_bridge_getlink,
+ .ndo_bridge_setlink = switchdev_port_bridge_setlink,
+ .ndo_bridge_dellink = switchdev_port_bridge_dellink,
};
static const struct switchdev_ops dsa_slave_switchdev_ops = {
.switchdev_port_attr_get = dsa_slave_port_attr_get,
.switchdev_port_attr_set = dsa_slave_port_attr_set,
+ .switchdev_port_obj_add = dsa_slave_port_obj_add,
+ .switchdev_port_obj_del = dsa_slave_port_obj_del,
+ .switchdev_port_obj_dump = dsa_slave_port_obj_dump,
};
static void dsa_slave_adjust_link(struct net_device *dev)
--
2.4.6
--
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