xref: /freebsd-10-stable/sys/dev/ixl/ixlv_vc_mgr.h

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  Copyright (c) 2013-2014, Intel Corporation
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  modification, are permitted provided that the following conditions are met:

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/*$FreeBSD$*/

#ifndef _IXLV_VC_MGR_H_
#define _IXLV_VC_MGR_H_

#include <sys/queue.h>

struct ixl_vc_cmd;

typedef void ixl_vc_callback_t(struct ixl_vc_cmd *, void *,
	enum i40e_status_code);


#define	IXLV_VC_CMD_FLAG_BUSY		0x0001

struct ixl_vc_cmd
{
	uint32_t request;
	uint32_t flags;

	ixl_vc_callback_t *callback;
	void *arg;

	TAILQ_ENTRY(ixl_vc_cmd) next;
};

struct ixl_vc_mgr
{
	struct ixlv_sc *sc;
	struct ixl_vc_cmd *current;
	struct callout callout;

	TAILQ_HEAD(, ixl_vc_cmd) pending;
};

#define	IXLV_VC_TIMEOUT			(2 * hz)

void	ixl_vc_init_mgr(struct ixlv_sc *, struct ixl_vc_mgr *);
void	ixl_vc_enqueue(struct ixl_vc_mgr *, struct ixl_vc_cmd *,
	    uint32_t, ixl_vc_callback_t *, void *);
void	ixl_vc_flush(struct ixl_vc_mgr *mgr);

#endif