Differential D6861 Diff 18270 head/sys/dev/hyperv/vmbus/vmbus.c

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head/sys/dev/hyperv/vmbus/vmbus.c

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};		};

#define VMBUS_MSGHC_CTXF_DESTROY 0x0001		#define VMBUS_MSGHC_CTXF_DESTROY 0x0001

static int vmbus_init(struct vmbus_softc *);		static int vmbus_init(struct vmbus_softc *);
static int vmbus_init_contact(struct vmbus_softc *,		static int vmbus_init_contact(struct vmbus_softc *,
uint32_t);		uint32_t);
static int vmbus_req_channels(struct vmbus_softc *sc);		static int vmbus_req_channels(struct vmbus_softc *sc);
		static void vmbus_uninit(struct vmbus_softc *);

static int vmbus_sysctl_version(SYSCTL_HANDLER_ARGS);		static int vmbus_sysctl_version(SYSCTL_HANDLER_ARGS);

static struct vmbus_msghc_ctx *vmbus_msghc_ctx_create(bus_dma_tag_t);		static struct vmbus_msghc_ctx *vmbus_msghc_ctx_create(bus_dma_tag_t);
static void vmbus_msghc_ctx_destroy(		static void vmbus_msghc_ctx_destroy(
struct vmbus_msghc_ctx *);		struct vmbus_msghc_ctx *);
static void vmbus_msghc_ctx_free(struct vmbus_msghc_ctx *);		static void vmbus_msghc_ctx_free(struct vmbus_msghc_ctx *);
static struct vmbus_msghc *vmbus_msghc_alloc(bus_dma_tag_t);		static struct vmbus_msghc *vmbus_msghc_alloc(bus_dma_tag_t);
▲ Show 20 Lines • Show All 305 Lines • ▼ Show 20 Lines	if (!error) {
(hv_vmbus_protocal_version >> 16),		(hv_vmbus_protocal_version >> 16),
(hv_vmbus_protocal_version & 0xffff));		(hv_vmbus_protocal_version & 0xffff));
return 0;		return 0;
}		}
}		}
return ENXIO;		return ENXIO;
}		}

		static void
		vmbus_uninit(struct vmbus_softc *sc)
		{
		struct vmbus_chanmsg_unload *req;
		struct vmbus_msghc *mh;
		int error;

		mh = vmbus_msghc_get(sc, sizeof(*req));
		if (mh == NULL) {
		device_printf(sc->vmbus_dev,
		"can not get msg hypercall for unload\n");
		return;
		}

		req = vmbus_msghc_dataptr(mh);
		req->chm_hdr.chm_type = VMBUS_CHANMSG_TYPE_UNLOAD;

		error = vmbus_msghc_exec_noresult(mh);
		vmbus_msghc_put(sc, mh);

		if (error) {
		device_printf(sc->vmbus_dev,
		"unload msg hypercall failed\n");
		}
		}

static int		static int
vmbus_req_channels(struct vmbus_softc *sc)		vmbus_req_channels(struct vmbus_softc *sc)
{		{
struct vmbus_chanmsg_channel_req *req;		struct vmbus_chanmsg_channel_req *req;
struct vmbus_msghc *mh;		struct vmbus_msghc *mh;
int error;		int error;

mh = vmbus_msghc_get(sc, sizeof(*req));		mh = vmbus_msghc_get(sc, sizeof(*req));
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}		}

static int		static int
vmbus_detach(device_t dev)		vmbus_detach(device_t dev)
{		{
struct vmbus_softc *sc = device_get_softc(dev);		struct vmbus_softc *sc = device_get_softc(dev);

hv_vmbus_release_unattached_channels();		hv_vmbus_release_unattached_channels();

		vmbus_uninit(sc);
hv_vmbus_disconnect();		hv_vmbus_disconnect();

if (sc->vmbus_flags & VMBUS_FLAG_SYNIC) {		if (sc->vmbus_flags & VMBUS_FLAG_SYNIC) {
sc->vmbus_flags &= ~VMBUS_FLAG_SYNIC;		sc->vmbus_flags &= ~VMBUS_FLAG_SYNIC;
smp_rendezvous(NULL, vmbus_synic_teardown, NULL, NULL);		smp_rendezvous(NULL, vmbus_synic_teardown, NULL, NULL);
}		}

vmbus_intr_teardown(sc);		vmbus_intr_teardown(sc);
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