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authorJakub Kicinski <jakub.kicinski@netronome.com>2019-02-26 06:34:03 +0300
committerDavid S. Miller <davem@davemloft.net>2019-02-26 19:49:05 +0300
commitb473b0d23529cde6c825a592c035e9d910b19e21 (patch)
tree9a3fbac499f820e7cb565296f79b5d0207d8d5ae /include/linux/netdevice.h
parentf4b6bcc7002f0e3a3428bac33cf1945abff95450 (diff)
downloadlinux-b473b0d23529cde6c825a592c035e9d910b19e21.tar.xz
devlink: create a special NDO for getting the devlink instance
Instead of iterating over all devlink ports add a NDO which will return the devlink instance from the driver. v2: add the netdev_to_devlink() helper (Michal) v3: check that devlink has ops (Florian) v4: hold devlink_mutex (Jiri) Suggested-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ffbddd03242b..58e83bd7a861 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -941,6 +941,8 @@ struct dev_ifalias {
char ifalias[];
};
+struct devlink;
+
/*
* This structure defines the management hooks for network devices.
* The following hooks can be defined; unless noted otherwise, they are
@@ -1249,6 +1251,10 @@ struct dev_ifalias {
* that got dropped are freed/returned via xdp_return_frame().
* Returns negative number, means general error invoking ndo, meaning
* no frames were xmit'ed and core-caller will free all frames.
+ * struct devlink *(*ndo_get_devlink)(struct net_device *dev);
+ * Get devlink instance associated with a given netdev.
+ * Called with a reference on the netdevice and devlink locks only,
+ * rtnl_lock is not held.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1447,6 +1453,7 @@ struct net_device_ops {
u32 flags);
int (*ndo_xsk_async_xmit)(struct net_device *dev,
u32 queue_id);
+ struct devlink * (*ndo_get_devlink)(struct net_device *dev);
};
/**