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9771b8ccdf
The new command (NCSI_CMD_SEND_CMD) is added to allow user space application to send NC-SI command to the network card. Also, add a new attribute (NCSI_ATTR_DATA) for transferring request and response. The work flow is as below. Request: User space application -> Netlink interface (msg) -> new Netlink handler - ncsi_send_cmd_nl() -> ncsi_xmit_cmd() Response: Response received - ncsi_rcv_rsp() -> internal response handler - ncsi_rsp_handler_xxx() -> ncsi_rsp_handler_netlink() -> ncsi_send_netlink_rsp () -> Netlink interface (msg) -> user space application Command timeout - ncsi_request_timeout() -> ncsi_send_netlink_timeout () -> Netlink interface (msg with zero data length) -> user space application Error: Error detected -> ncsi_send_netlink_err () -> Netlink interface (err msg) -> user space application Signed-off-by: Justin Lee <justin.lee1@dell.com> Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
33 lines
931 B
C
33 lines
931 B
C
/*
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* Copyright Samuel Mendoza-Jonas, IBM Corporation 2018.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __NCSI_NETLINK_H__
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#define __NCSI_NETLINK_H__
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#include <linux/netdevice.h>
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#include "internal.h"
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int ncsi_send_netlink_rsp(struct ncsi_request *nr,
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struct ncsi_package *np,
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struct ncsi_channel *nc);
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int ncsi_send_netlink_timeout(struct ncsi_request *nr,
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struct ncsi_package *np,
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struct ncsi_channel *nc);
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int ncsi_send_netlink_err(struct net_device *dev,
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u32 snd_seq,
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u32 snd_portid,
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struct nlmsghdr *nlhdr,
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int err);
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int ncsi_init_netlink(struct net_device *dev);
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int ncsi_unregister_netlink(struct net_device *dev);
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#endif /* __NCSI_NETLINK_H__ */
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