2d283bdd07
NCSI spec (DSP0222) defines several objects: package, channel, mode,
filter, version and statistics etc. This introduces the data structs
to represent those objects and implement functions to manage them.
Also, this introduces CONFIG_NET_NCSI for the newly implemented NCSI
stack.
* The user (e.g. netdev driver) dereference NCSI device by
"struct ncsi_dev", which is embedded to "struct ncsi_dev_priv".
The later one is used by NCSI stack internally.
* Every NCSI device can have multiple packages simultaneously, up
to 8 packages. It's represented by "struct ncsi_package" and
identified by 3-bits ID.
* Every NCSI package can have multiple channels, up to 32. It's
represented by "struct ncsi_channel" and identified by 5-bits ID.
* Every NCSI channel has version, statistics, various modes and
filters. They are represented by "struct ncsi_channel_version",
"struct ncsi_channel_stats", "struct ncsi_channel_mode" and
"struct ncsi_channel_filter" separately.
* Apart from AEN (Asynchronous Event Notification), the NCSI stack
works in terms of command and response. This introduces "struct
ncsi_req" to represent a complete NCSI transaction made of NCSI
request and response.
link: https://www.dmtf.org/sites/default/files/standards/documents/DSP0222_1.1.0.pdf
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
#ifndef __NET_NCSI_H
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#define __NET_NCSI_H
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/*
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* The NCSI device states seen from external. More NCSI device states are
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* only visible internally (in net/ncsi/internal.h). When the NCSI device
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* is registered, it's in ncsi_dev_state_registered state. The state
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* ncsi_dev_state_start is used to drive to choose active package and
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* channel. After that, its state is changed to ncsi_dev_state_functional.
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*
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* The state ncsi_dev_state_stop helps to shut down the currently active
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* package and channel while ncsi_dev_state_config helps to reconfigure
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* them.
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*/
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enum {
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ncsi_dev_state_registered = 0x0000,
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ncsi_dev_state_functional = 0x0100,
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ncsi_dev_state_probe = 0x0200,
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ncsi_dev_state_config = 0x0300,
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ncsi_dev_state_suspend = 0x0400,
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};
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struct ncsi_dev {
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int state;
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int link_up;
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struct net_device *dev;
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void (*handler)(struct ncsi_dev *ndev);
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};
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#ifdef CONFIG_NET_NCSI
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struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
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void (*notifier)(struct ncsi_dev *nd));
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void ncsi_unregister_dev(struct ncsi_dev *nd);
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#else /* !CONFIG_NET_NCSI */
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static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
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void (*notifier)(struct ncsi_dev *nd))
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{
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return NULL;
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}
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static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
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{
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}
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#endif /* CONFIG_NET_NCSI */
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#endif /* __NET_NCSI_H */
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