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Date: Mon, 30 Mar 2015 13:56:38 -0700
From: Sridhar Samudrala <sridhar.samudrala@...el.com>
To: jiri@...nulli.us, sfeldman@...il.com, roopa@...ulusnetworks.com,
netdev@...r.kernel.org
Subject: [RFC PATCH net-next] switchdev: Enable HW offloading of fdb add/delete on team devices.
switchdev: Enable HW offloading of fdb add/delete on team devices.
This patch enables HW offloading of fdb add/delete on a team device with
switchdev member ports and not attached to a bridge.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@...el.com>
---
drivers/net/team/team.c | 2 +
include/net/switchdev.h | 47 +++++++++++++++++
net/switchdev/switchdev.c | 125 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 174 insertions(+)
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 6928448..3de7ab3 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1979,6 +1979,8 @@ static const struct net_device_ops team_netdev_ops = {
.ndo_change_carrier = team_change_carrier,
.ndo_bridge_setlink = ndo_dflt_netdev_switch_port_bridge_setlink,
.ndo_bridge_dellink = ndo_dflt_netdev_switch_port_bridge_dellink,
+ .ndo_fdb_add = ndo_dflt_netdev_switch_port_fdb_add,
+ .ndo_fdb_del = ndo_dflt_netdev_switch_port_fdb_del,
.ndo_features_check = passthru_features_check,
};
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index d2e69ee..7902909 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -81,6 +81,19 @@ int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
struct nlmsghdr *nlh, u16 flags);
int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
struct nlmsghdr *nlh, u16 flags);
+int netdev_switch_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid, u16 flags);
+int netdev_switch_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid);
+int ndo_dflt_netdev_switch_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid,
+ u16 flags);
+int ndo_dflt_netdev_switch_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid);
int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
u8 tos, u8 type, u32 nlflags, u32 tb_id);
int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
@@ -145,6 +158,40 @@ static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *
return 0;
}
+static inline int netdev_switch_port_fdb_add(struct ndmsg *ndm,
+ struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid,
+ u16 flags)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int netdev_switch_port_fdb_del(struct ndmsg *ndm,
+ struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int ndo_dflt_netdev_switch_port_fdb_add(struct ndmsg *ndm,
+ struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid,
+ u16 flags)
+{
+ return 0;
+}
+
+static inline int ndo_dflt_netdev_switch_port_fdb_del(struct ndmsg *ndm,
+ struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid)
+{
+ return 0;
+}
+
static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len,
struct fib_info *fi,
u8 tos, u8 type,
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 46568b8..f3e4e16 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -237,6 +237,131 @@ int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
}
EXPORT_SYMBOL_GPL(ndo_dflt_netdev_switch_port_bridge_dellink);
+/**
+ * netdev_switch_port_fdb_add - Add fdb entry to switch device port
+ *
+ * @ndm: struct ndmsg
+ * @tb: pointer to array of nlattr
+ * @dev: switch device port netdev
+ * @addr: MAC address entry to be added
+ * @vid: VLAN id
+ * @flags: flags for fdb addition
+ *
+ * Add fdb entry to switch device port.
+ */
+int netdev_switch_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid, u16 flags)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+
+ if (!(dev->features & NETIF_F_HW_SWITCH_OFFLOAD))
+ return 0;
+
+ if (!ops->ndo_fdb_add)
+ return -EOPNOTSUPP;
+
+ return ops->ndo_fdb_add(ndm, tb, dev, addr, vid, flags);
+
+}
+EXPORT_SYMBOL_GPL(netdev_switch_port_fdb_add);
+
+/**
+ * netdev_switch_port_fdb_del - Delete fdb entry from switch device port
+ *
+ * @ndm: struct ndmsg
+ * @tb: pointer to array of nlattr
+ * @dev: switch device port netdev
+ * @addr: MAC address entry to be added
+ * @vid: VLAN id
+ *
+ * Delete fdb entry from switch device port.
+ */
+int netdev_switch_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+
+ if (!(dev->features & NETIF_F_HW_SWITCH_OFFLOAD))
+ return 0;
+
+ if (!ops->ndo_fdb_del)
+ return -EOPNOTSUPP;
+
+ return ops->ndo_fdb_del(ndm, tb, dev, addr, vid);
+}
+EXPORT_SYMBOL_GPL(netdev_switch_port_fdb_del);
+
+/**
+ * ndo_dflt_netdev_switch_port_fdb_add - Propagate add fdb entry to all
+ * the slave devices.
+ *
+ * @ndm: struct ndmsg
+ * @tb: pointer to array of nlattr
+ * @dev: switch device port netdev
+ * @addr: MAC address entry to be added
+ * @vid: VLAN id
+ * @flags: flags for fdb addition
+ *
+ * Propagate add fdb entry to all the slave devices.
+ */
+int ndo_dflt_netdev_switch_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid,
+ u16 flags)
+{
+ struct net_device *lower_dev;
+ struct list_head *iter;
+ int ret = 0, err = 0;
+
+ if (!(dev->features & NETIF_F_HW_SWITCH_OFFLOAD))
+ return ret;
+
+ netdev_for_each_lower_dev(dev, lower_dev, iter) {
+ err = netdev_switch_port_fdb_add(ndm, tb, lower_dev, addr,vid,
+ flags);
+ if (err && err != -EOPNOTSUPP)
+ ret = err;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ndo_dflt_netdev_switch_port_fdb_add);
+
+/**
+ * ndo_dflt_netdev_switch_port_fdb_del - Propagate delete fdb entry to all
+ * the slave devices.
+ *
+ * @ndm: struct ndmsg
+ * @tb: pointer to array of nlattr
+ * @dev: switch device port netdev
+ * @addr: MAC address entry to be added
+ * @vid: VLAN id
+ *
+ * Propagate delete fdb entry to all the slave devices.
+ */
+int ndo_dflt_netdev_switch_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 vid)
+{
+ struct net_device *lower_dev;
+ struct list_head *iter;
+ int ret = 0, err = 0;
+
+ if (!(dev->features & NETIF_F_HW_SWITCH_OFFLOAD))
+ return ret;
+
+ netdev_for_each_lower_dev(dev, lower_dev, iter) {
+ err = netdev_switch_port_fdb_del(ndm, tb, lower_dev, addr,vid);
+ if (err && err != -EOPNOTSUPP)
+ ret = err;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ndo_dflt_netdev_switch_port_fdb_del);
+
static struct net_device *netdev_switch_get_lowest_dev(struct net_device *dev)
{
const struct swdev_ops *ops = dev->swdev_ops;
--
1.8.4.2
--
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