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head/sys/dev/hyperv/vmbus/hv_connection.c
| Show First 20 Lines • Show All 347 Lines • ▼ Show 20 Lines | |||||
| /** | /** | ||||
| * Send an event notification to the parent | * Send an event notification to the parent | ||||
| */ | */ | ||||
| int | int | ||||
| hv_vmbus_set_event(hv_vmbus_channel *channel) | hv_vmbus_set_event(hv_vmbus_channel *channel) | ||||
| { | { | ||||
| struct vmbus_softc *sc = vmbus_get_softc(); | struct vmbus_softc *sc = vmbus_get_softc(); | ||||
| int ret = 0; | int ret = 0; | ||||
| uint32_t child_rel_id = channel->offer_msg.child_rel_id; | uint32_t chanid = channel->offer_msg.child_rel_id; | ||||
| /* Each uint32_t represents 32 channels */ | atomic_set_long(&sc->vmbus_tx_evtflags[chanid >> VMBUS_EVTFLAG_SHIFT], | ||||
| 1UL << (chanid & VMBUS_EVTFLAG_MASK)); | |||||
| synch_set_bit(child_rel_id & 31, | |||||
| (((uint32_t *)sc->vmbus_tx_evtflags + (child_rel_id >> 5)))); | |||||
| ret = hv_vmbus_signal_event(channel->signal_event_param); | ret = hv_vmbus_signal_event(channel->signal_event_param); | ||||
| return (ret); | return (ret); | ||||
| } | } | ||||
| void | void | ||||
| vmbus_on_channel_open(const struct hv_vmbus_channel *chan) | vmbus_on_channel_open(const struct hv_vmbus_channel *chan) | ||||
| { | { | ||||
| Show All 24 Lines | |||||