xref: /dflybsd-src/sys/dev/virtual/hyperv/vmbus/vmbus_var.h (revision ae7ab5b6832721f951219db169814eb54c78936f)
1e3c41896SSepherosa Ziehau /*-
2e3c41896SSepherosa Ziehau  * Copyright (c) 2016 Microsoft Corp.
3e3c41896SSepherosa Ziehau  * All rights reserved.
4e3c41896SSepherosa Ziehau  *
5e3c41896SSepherosa Ziehau  * Redistribution and use in source and binary forms, with or without
6e3c41896SSepherosa Ziehau  * modification, are permitted provided that the following conditions
7e3c41896SSepherosa Ziehau  * are met:
8e3c41896SSepherosa Ziehau  * 1. Redistributions of source code must retain the above copyright
9e3c41896SSepherosa Ziehau  *    notice unmodified, this list of conditions, and the following
10e3c41896SSepherosa Ziehau  *    disclaimer.
11e3c41896SSepherosa Ziehau  * 2. Redistributions in binary form must reproduce the above copyright
12e3c41896SSepherosa Ziehau  *    notice, this list of conditions and the following disclaimer in the
13e3c41896SSepherosa Ziehau  *    documentation and/or other materials provided with the distribution.
14e3c41896SSepherosa Ziehau  *
15e3c41896SSepherosa Ziehau  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16e3c41896SSepherosa Ziehau  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17e3c41896SSepherosa Ziehau  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18e3c41896SSepherosa Ziehau  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19e3c41896SSepherosa Ziehau  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20e3c41896SSepherosa Ziehau  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21e3c41896SSepherosa Ziehau  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22e3c41896SSepherosa Ziehau  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23e3c41896SSepherosa Ziehau  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24e3c41896SSepherosa Ziehau  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25e3c41896SSepherosa Ziehau  *
26e3c41896SSepherosa Ziehau  * $FreeBSD$
27e3c41896SSepherosa Ziehau  */
28e3c41896SSepherosa Ziehau 
29e3c41896SSepherosa Ziehau #ifndef _VMBUS_VAR_H_
30e3c41896SSepherosa Ziehau #define _VMBUS_VAR_H_
31e3c41896SSepherosa Ziehau 
32e3c41896SSepherosa Ziehau #include <sys/param.h>
33e3c41896SSepherosa Ziehau 
34e3c41896SSepherosa Ziehau struct vmbus_pcpu_data {
35e3c41896SSepherosa Ziehau 	struct vmbus_message	*message;	/* shared messages */
36e3c41896SSepherosa Ziehau 	int			event_flags_cnt;/* # of event flags */
37e3c41896SSepherosa Ziehau 	struct vmbus_evtflags	*event_flags;	/* event flags from host */
38e3c41896SSepherosa Ziehau 
39e3c41896SSepherosa Ziehau 	struct vmbus_softc	*sc;
40e3c41896SSepherosa Ziehau 	int			cpuid;
41e3c41896SSepherosa Ziehau 	int			vcpuid;
42e3c41896SSepherosa Ziehau 
43e3c41896SSepherosa Ziehau 	uint64_t		timer_last;
44e3c41896SSepherosa Ziehau 
45e3c41896SSepherosa Ziehau 	/*
46e3c41896SSepherosa Ziehau 	 * Rarely used fields
47e3c41896SSepherosa Ziehau 	 */
48e3c41896SSepherosa Ziehau 
49e3c41896SSepherosa Ziehau 	struct hyperv_dma	message_dma;	/* busdma glue */
50e3c41896SSepherosa Ziehau 	struct hyperv_dma	event_flags_dma;/* busdma glue */
51e3c41896SSepherosa Ziehau 
52e3c41896SSepherosa Ziehau 	/* Interrupt stuffs */
53e3c41896SSepherosa Ziehau 	void			*intr_hand;
54e3c41896SSepherosa Ziehau 	struct resource		*intr_res;
55e3c41896SSepherosa Ziehau 	int			intr_rid;
56*ae7ab5b6SSepherosa Ziehau 	int			intr_irq;
57e3c41896SSepherosa Ziehau 	int			intr_vec;
58*ae7ab5b6SSepherosa Ziehau 	char			intr_desc[20];
59e3c41896SSepherosa Ziehau } __cachealign;
60e3c41896SSepherosa Ziehau 
61e3c41896SSepherosa Ziehau struct vmbus_softc {
62e3c41896SSepherosa Ziehau 	u_long			*vmbus_tx_evtflags;
63e3c41896SSepherosa Ziehau 						/* event flags to host */
64e3c41896SSepherosa Ziehau 	void			*vmbus_mnf2;	/* monitored by host */
65e3c41896SSepherosa Ziehau 
66e3c41896SSepherosa Ziehau 	u_long			*vmbus_rx_evtflags;
67e3c41896SSepherosa Ziehau 						/* compat evtflgs from host */
68e3c41896SSepherosa Ziehau 	struct vmbus_pcpu_data	vmbus_pcpu[MAXCPU];
69e3c41896SSepherosa Ziehau 
70e3c41896SSepherosa Ziehau 	/*
71e3c41896SSepherosa Ziehau 	 * Rarely used fields
72e3c41896SSepherosa Ziehau 	 */
73e3c41896SSepherosa Ziehau 
74e3c41896SSepherosa Ziehau 	device_t		vmbus_dev;
75e3c41896SSepherosa Ziehau 	struct vmbus_msghc_ctx	*vmbus_msg_hc;
76e3c41896SSepherosa Ziehau 	uint32_t		vmbus_flags;	/* see VMBUS_FLAG_ */
77e3c41896SSepherosa Ziehau 	uint32_t		vmbus_version;	/* VMBUS_VERSION_ */
78e3c41896SSepherosa Ziehau 
79e3c41896SSepherosa Ziehau 	/* Shared memory for vmbus_{rx,tx}_evtflags */
80e3c41896SSepherosa Ziehau 	void			*vmbus_evtflags;
81e3c41896SSepherosa Ziehau 	struct hyperv_dma	vmbus_evtflags_dma;
82e3c41896SSepherosa Ziehau 
83e3c41896SSepherosa Ziehau 	void			*vmbus_mnf1;	/* monitored by VM, unused */
84e3c41896SSepherosa Ziehau 	struct hyperv_dma	vmbus_mnf1_dma;
85e3c41896SSepherosa Ziehau 	struct hyperv_dma	vmbus_mnf2_dma;
86e3c41896SSepherosa Ziehau };
87e3c41896SSepherosa Ziehau 
88e3c41896SSepherosa Ziehau #define VMBUS_FLAG_SYNIC	0x0002	/* SynIC was setup */
89e3c41896SSepherosa Ziehau 
90e3c41896SSepherosa Ziehau #define VMBUS_PCPU(sc, cpu)	&(sc)->vmbus_pcpu[(cpu)]
91e3c41896SSepherosa Ziehau 
92e3c41896SSepherosa Ziehau struct vmbus_message;
93e3c41896SSepherosa Ziehau struct vmbus_msghc;
94e3c41896SSepherosa Ziehau 
95e3c41896SSepherosa Ziehau struct vmbus_msghc *vmbus_msghc_get(struct vmbus_softc *, size_t);
96e3c41896SSepherosa Ziehau void	vmbus_msghc_put(struct vmbus_softc *, struct vmbus_msghc *);
97e3c41896SSepherosa Ziehau void	*vmbus_msghc_dataptr(struct vmbus_msghc *);
98e3c41896SSepherosa Ziehau int	vmbus_msghc_exec_noresult(struct vmbus_msghc *);
99e3c41896SSepherosa Ziehau int	vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *);
100e3c41896SSepherosa Ziehau const struct vmbus_message *vmbus_msghc_wait_result(struct vmbus_softc *,
101e3c41896SSepherosa Ziehau 	    struct vmbus_msghc *);
102e3c41896SSepherosa Ziehau void	vmbus_msghc_wakeup(struct vmbus_softc *, const struct vmbus_message *);
103e3c41896SSepherosa Ziehau 
104e3c41896SSepherosa Ziehau #endif	/* !_VMBUS_VAR_H_ */
105