diff options
| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2021-10-29 06:01:45 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-29 15:23:51 +0300 |
| commit | 67737c457281dd199ceb9e31b6ba7efd3bfe566d (patch) | |
| tree | 77003311252e189a9ea63792d9fa7f0f09175119 /include/net | |
| parent | 78476d315e190533757ab894255c4f2c2f254bce (diff) | |
| download | linux-67737c457281dd199ceb9e31b6ba7efd3bfe566d.tar.xz | |
mctp: Pass flow data & flow release events to drivers
Now that we have an extension for MCTP data in skbs, populate the flow
when a key has been created for the packet, and add a device driver
operation to inform of flow destruction.
Includes a fix for a warning with test builds:
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/mctp.h | 6 | ||||
| -rw-r--r-- | include/net/mctpdevice.h | 16 |
2 files changed, 22 insertions, 0 deletions
diff --git a/include/net/mctp.h b/include/net/mctp.h index 7a5ba801703c..7e35ec79b909 100644 --- a/include/net/mctp.h +++ b/include/net/mctp.h @@ -152,6 +152,12 @@ struct mctp_sk_key { /* expiry timeout; valid (above) cleared on expiry */ unsigned long expiry; + + /* free to use for device flow state tracking. Initialised to + * zero on initial key creation + */ + unsigned long dev_flow_state; + struct mctp_dev *dev; }; struct mctp_skb_cb { diff --git a/include/net/mctpdevice.h b/include/net/mctpdevice.h index 3a439463f055..5c0d04b5c12c 100644 --- a/include/net/mctpdevice.h +++ b/include/net/mctpdevice.h @@ -14,6 +14,8 @@ #include <linux/types.h> #include <linux/refcount.h> +struct mctp_sk_key; + struct mctp_dev { struct net_device *dev; @@ -21,6 +23,8 @@ struct mctp_dev { unsigned int net; + const struct mctp_netdev_ops *ops; + /* Only modified under RTNL. Reads have addrs_lock held */ u8 *addrs; size_t num_addrs; @@ -29,12 +33,24 @@ struct mctp_dev { struct rcu_head rcu; }; +struct mctp_netdev_ops { + void (*release_flow)(struct mctp_dev *dev, + struct mctp_sk_key *key); +}; + #define MCTP_INITIAL_DEFAULT_NET 1 struct mctp_dev *mctp_dev_get_rtnl(const struct net_device *dev); struct mctp_dev *__mctp_dev_get(const struct net_device *dev); +int mctp_register_netdev(struct net_device *dev, + const struct mctp_netdev_ops *ops); +void mctp_unregister_netdev(struct net_device *dev); + void mctp_dev_hold(struct mctp_dev *mdev); void mctp_dev_put(struct mctp_dev *mdev); +void mctp_dev_set_key(struct mctp_dev *dev, struct mctp_sk_key *key); +void mctp_dev_release_key(struct mctp_dev *dev, struct mctp_sk_key *key); + #endif /* __NET_MCTPDEVICE_H */ |