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mctp: Add device handling and netlink interface

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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>
This commit is contained in:
Jeremy Kerr
2021-07-29 10:20:44 +08:00
committed by David S. Miller
parent 4b2e69305c
commit 583be982d9
10 changed files with 491 additions and 1 deletions
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4
include/linux/netdevice.h
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@@ -1823,6 +1823,7 @@ enum netdev_ml_priv_type {
* @ieee802154_ptr: IEEE 802.15.4 low-rate Wireless Personal Area Network
* device struct
* @mpls_ptr: mpls_dev struct pointer
* @mctp_ptr: MCTP specific data
*
* @dev_addr: Hw address (before bcast,
* because most packets are unicast)
@@ -2110,6 +2111,9 @@ struct net_device {
#if IS_ENABLED(CONFIG_MPLS_ROUTING)
struct mpls_dev __rcu *mpls_ptr;
#endif
#if IS_ENABLED(CONFIG_MCTP)
struct mctp_dev __rcu *mctp_ptr;
#endif
/*
* Cache lines mostly used on receive path (including eth_type_trans())