diff options
| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2021-07-29 05:20:44 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-29 17:06:50 +0300 |
| commit | 583be982d93479ea3d85091b0fd0b01201ede87d (patch) | |
| tree | b4407ff68cdafc6bea2041b6ca0dac5be0a1bfa2 /include/net/mctpdevice.h | |
| parent | 4b2e69305cbbc7c32ecbd946110b505c4ff6071a (diff) | |
| download | linux-583be982d93479ea3d85091b0fd0b01201ede87d.tar.xz | |
mctp: Add device handling and netlink interface
This change adds the infrastructure for managing MCTP netdevices; we add
a pointer to the AF_MCTP-specific data to struct netdevice, and hook up
the rtnetlink operations for adding and removing addresses.
Includes changes from Matt Johnston <matt@codeconstruct.com.au>.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/mctpdevice.h')
| -rw-r--r-- | include/net/mctpdevice.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/net/mctpdevice.h b/include/net/mctpdevice.h new file mode 100644 index 000000000000..71a11012fac7 --- /dev/null +++ b/include/net/mctpdevice.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Management Component Transport Protocol (MCTP) - device + * definitions. + * + * Copyright (c) 2021 Code Construct + * Copyright (c) 2021 Google + */ + +#ifndef __NET_MCTPDEVICE_H +#define __NET_MCTPDEVICE_H + +#include <linux/list.h> +#include <linux/types.h> +#include <linux/refcount.h> + +struct mctp_dev { + struct net_device *dev; + + unsigned int net; + + /* Only modified under RTNL. Reads have addrs_lock held */ + u8 *addrs; + size_t num_addrs; + spinlock_t addrs_lock; + + struct rcu_head rcu; +}; + +#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); + +#endif /* __NET_MCTPDEVICE_H */ |