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/*
* Copyright (c) 2016 Mike Belopuhov <mike@esdenera.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _HYPERVVAR_H_
#define _HYPERVVAR_H_
#define HYPERV_DEBUG
#ifdef HYPERV_DEBUG
#define DPRINTF(x...) printf(x)
#else
#define DPRINTF(x...)
#endif
struct hv_softc;
struct hv_msg {
uint64_t msg_flags;
#define MSGF_NOSLEEP 0x0001
#define MSGF_NOQUEUE 0x0002
#define MSGF_ORPHANED 0x0004
struct hv_input_post_message msg_req;
void *msg_rsp;
size_t msg_rsplen;
TAILQ_ENTRY(hv_msg) msg_entry;
};
TAILQ_HEAD(hv_queue, hv_msg);
struct hv_offer {
struct hv_channel_offer_channel co_chan;
SIMPLEQ_ENTRY(hv_offer) co_entry;
};
SIMPLEQ_HEAD(hv_offers, hv_offer);
struct hv_ring_data {
struct hv_ring_buffer *rd_ring;
uint32_t rd_size;
struct mutex rd_lock;
uint32_t rd_prod;
uint32_t rd_cons;
uint32_t rd_data_size;
uint32_t rd_data_offset;
};
struct hv_channel {
struct hv_softc *ch_sc;
int ch_state;
#define HV_CHANSTATE_OFFERED 1
#define HV_CHANSTATE_OPENED 2
#define HV_CHANSTATE_CLOSING 3
#define HV_CHANSTATE_CLOSED 4
uint32_t ch_relid;
struct hv_guid ch_type;
struct hv_guid ch_inst;
char ch_ident[38];
uint8_t ch_mgroup;
uint8_t ch_mindex;
void *ch_ring;
uint32_t ch_ring_hndl;
uint32_t ch_ring_npg;
ulong ch_ring_size;
struct hv_ring_data ch_wrd;
struct hv_ring_data ch_rrd;
uint32_t ch_vcpu;
void (*ch_handler)(void *);
void *ch_ctx;
uint8_t *ch_buf;
int ch_buflen;
struct evcount ch_evcnt;
uint32_t ch_flags;
#define CHF_BATCHED 0x0001
#define CHF_DEDICATED 0x0002
#define CHF_MONITOR 0x0004
struct hv_input_signal_event ch_sigevt __attribute__((aligned(8)));
TAILQ_ENTRY(hv_channel) ch_entry;
};
TAILQ_HEAD(hv_channels, hv_channel);
struct hv_attach_args {
void *aa_parent;
bus_dma_tag_t aa_dmat;
struct hv_guid *aa_type;
struct hv_guid *aa_inst;
char *aa_ident;
struct hv_channel *aa_chan;
};
struct hv_dev {
struct hv_attach_args dv_aa;
SLIST_ENTRY(hv_dev) dv_entry;
};
SLIST_HEAD(hv_devices, hv_dev);
struct hv_softc {
struct device sc_dev;
struct pvbus_hv *sc_pvbus;
struct bus_dma_tag *sc_dmat;
void *sc_hc;
uint32_t sc_features;
uint32_t sc_flags;
#define HSF_CONNECTED 0x0001
#define HSF_OFFERS_DELIVERED 0x0002
int sc_idtvec;
int sc_proto;
/* CPU id to VCPU id mapping */
uint32_t sc_vcpus[1]; /* XXX: per-cpu */
/* Synthetic Interrupt Message Page (SIMP) */
void *sc_simp[1]; /* XXX: per-cpu */
/* Synthetic Interrupt Event Flags Page (SIEFP) */
void *sc_siep[1]; /* XXX: per-cpu */
/* Channel port events page */
void *sc_events;
uint32_t *sc_wevents; /* Write events */
uint32_t *sc_revents; /* Read events */
/* Monitor pages for parent<->child notifications */
struct hv_monitor_page *sc_monitor[2];
struct hv_queue sc_reqs; /* Request queue */
struct mutex sc_reqlck;
struct hv_queue sc_rsps; /* Response queue */
struct mutex sc_rsplck;
struct hv_offers sc_offers;
struct mutex sc_offerlck;
struct hv_channels sc_channels;
struct mutex sc_channelck;
volatile uint32_t sc_handle;
struct hv_devices sc_devs;
struct mutex sc_devlck;
struct task sc_sdtask; /* shutdown */
struct ksensordev sc_sensordev;
struct ksensor sc_sensor;
};
static inline int
atomic_setbit_ptr(volatile void *ptr, int bit)
{
int obit;
__asm__ __volatile__ ("lock btsl %2,%1; sbbl %0,%0" :
"=r" (obit), "=m" (*(volatile long *)ptr) : "Ir" (bit) :
"memory");
return (obit);
}
static inline int
atomic_clearbit_ptr(volatile void *ptr, int bit)
{
int obit;
__asm__ __volatile__ ("lock btrl %2,%1; sbbl %0,%0" :
"=r" (obit), "=m" (*(volatile long *)ptr) : "Ir" (bit) :
"memory");
return (obit);
}
int hv_handle_alloc(struct hv_channel *, void *, uint32_t, uint32_t *);
void hv_handle_free(struct hv_channel *, uint32_t);
int hv_channel_open(struct hv_channel *, void *, size_t, void (*)(void *),
void *);
int hv_channel_close(struct hv_channel *);
int hv_channel_send(struct hv_channel *, void *, uint32_t, uint64_t,
int, uint32_t);
int hv_channel_sendbuf(struct hv_channel *, struct hv_page_buffer *,
uint32_t, void *, uint32_t, uint64_t);
int hv_channel_recv(struct hv_channel *, void *, uint32_t, uint32_t *,
uint64_t *, int);
#endif /* _HYPERVVAR_H_ */
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