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authorMaor Gottlieb <maorg@mellanox.com>2020-04-30 22:21:31 +0300
committerSaeed Mahameed <saeedm@mellanox.com>2020-05-01 22:15:37 +0300
commitcff9f12b18915d957a2130885a00f8ab15cff7e4 (patch)
tree4b9725cf89c6f269874c5ef7cdab098c273699ca /include
parent2dc8b5246d2c94f732c02e7a688d8a9c0c65361f (diff)
downloadlinux-cff9f12b18915d957a2130885a00f8ab15cff7e4.tar.xz
net/core: Introduce netdev_get_xmit_slave
Add new ndo to get the xmit slave of master device. The reference counters are not incremented so the caller must be careful with locks. User can ask to get the xmit slave assume all the slaves can transmit by set all_slaves arg to true. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/netdevice.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 130a668049ab..26bc0f11b7ad 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1146,6 +1146,12 @@ struct netdev_net_notifier {
* int (*ndo_del_slave)(struct net_device *dev, struct net_device *slave_dev);
* Called to release previously enslaved netdev.
*
+ * struct net_device *(*ndo_get_xmit_slave)(struct net_device *dev,
+ * struct sk_buff *skb,
+ * bool all_slaves);
+ * Get the xmit slave of master device. If all_slaves is true, function
+ * assume all the slaves can transmit.
+ *
* Feature/offload setting functions.
* netdev_features_t (*ndo_fix_features)(struct net_device *dev,
* netdev_features_t features);
@@ -1389,6 +1395,9 @@ struct net_device_ops {
struct netlink_ext_ack *extack);
int (*ndo_del_slave)(struct net_device *dev,
struct net_device *slave_dev);
+ struct net_device* (*ndo_get_xmit_slave)(struct net_device *dev,
+ struct sk_buff *skb,
+ bool all_slaves);
netdev_features_t (*ndo_fix_features)(struct net_device *dev,
netdev_features_t features);
int (*ndo_set_features)(struct net_device *dev,
@@ -2731,6 +2740,9 @@ void netdev_freemem(struct net_device *dev);
void synchronize_net(void);
int init_dummy_netdev(struct net_device *dev);
+struct net_device *netdev_get_xmit_slave(struct net_device *dev,
+ struct sk_buff *skb,
+ bool all_slaves);
struct net_device *dev_get_by_index(struct net *net, int ifindex);
struct net_device *__dev_get_by_index(struct net *net, int ifindex);
struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);