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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _GUEST_CHANNEL_H
#define _GUEST_CHANNEL_H
#ifdef __cplusplus
extern "C" {
#endif
#include <channel_commands.h>
/**
* Connect to the Virtio-Serial VM end-point located in path. It is
* thread safe for unique lcore_ids. This function must be only called once from
* each lcore.
*
* @param path
* The path to the serial device on the filesystem
* @param lcore_id
* lcore_id.
*
* @return
* - 0 on success.
* - Negative on error.
*/
int guest_channel_host_connect(const char *path, unsigned lcore_id);
/**
* Disconnect from an already connected Virtio-Serial Endpoint.
*
*
* @param lcore_id
* lcore_id.
*
*/
void guest_channel_host_disconnect(unsigned lcore_id);
/**
* Send a message contained in pkt over the Virtio-Serial to the host endpoint.
*
* @param pkt
* Pointer to a populated struct guest_agent_pkt
*
* @param lcore_id
* lcore_id.
*
* @return
* - 0 on success.
* - Negative on channel not connected.
* - errno on write to channel error.
*/
int guest_channel_send_msg(struct channel_packet *pkt, unsigned lcore_id);
/**
* Send a message contained in pkt over the Virtio-Serial to the host endpoint.
*
* @param pkt
* Pointer to a populated struct channel_packet
*
* @param lcore_id
* lcore_id.
*
* @return
* - 0 on success.
* - Negative on error.
*/
int rte_power_guest_channel_send_msg(struct channel_packet *pkt,
unsigned int lcore_id);
#ifdef __cplusplus
}
#endif
#endif
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