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head/sys/dev/hyperv/vmbus/vmbus.c
| Show First 20 Lines • Show All 80 Lines • ▼ Show 20 Lines | vmbus_msg_task(void *xsc, int pending __unused) | ||||
| msg = VMBUS_PCPU_GET(sc, message, curcpu) + VMBUS_SINT_MESSAGE; | msg = VMBUS_PCPU_GET(sc, message, curcpu) + VMBUS_SINT_MESSAGE; | ||||
| for (;;) { | for (;;) { | ||||
| if (msg->msg_type == VMBUS_MSGTYPE_NONE) { | if (msg->msg_type == VMBUS_MSGTYPE_NONE) { | ||||
| /* No message */ | /* No message */ | ||||
| break; | break; | ||||
| } else if (msg->msg_type == VMBUS_MSGTYPE_CHANNEL) { | } else if (msg->msg_type == VMBUS_MSGTYPE_CHANNEL) { | ||||
| /* Channel message */ | /* Channel message */ | ||||
| vmbus_chan_msgproc(sc, msg); | vmbus_chan_msgproc(sc, | ||||
| __DEVOLATILE(const struct vmbus_message *, msg)); | |||||
| } | } | ||||
| msg->msg_type = VMBUS_MSGTYPE_NONE; | msg->msg_type = VMBUS_MSGTYPE_NONE; | ||||
| /* | /* | ||||
| * Make sure the write to msg_type (i.e. set to | * Make sure the write to msg_type (i.e. set to | ||||
| * VMBUS_MSGTYPE_NONE) happens before we read the | * VMBUS_MSGTYPE_NONE) happens before we read the | ||||
| * msg_flags and EOMing. Otherwise, the EOMing will | * msg_flags and EOMing. Otherwise, the EOMing will | ||||
| * not deliver any more messages since there is no | * not deliver any more messages since there is no | ||||
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