Differential D2574 Diff 5447 sys/dev/hyperv/utilities/hv_util.c

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Show First 20 Lines • Show All 402 Lines • ▼ Show 20 Lines	hv_util_attach(device_t dev)
if (service->init != NULL) {		if (service->init != NULL) {
ret = service->init(service);		ret = service->init(service);
if (ret) {		if (ret) {
ret = ENODEV;		ret = ENODEV;
goto error0;		goto error0;
}		}
}		}

		/*
		* These services are not performance critical and do not need
		* batched reading. Furthermore, some services such as KVP can
		* only handle one message from the host at a time.
		* Turn off batched reading for all util drivers before we open the
		* channel.
		*/
		hv_set_channel_read_state(hv_dev->channel, FALSE);

ret = hv_vmbus_channel_open(hv_dev->channel, 4 * PAGE_SIZE,		ret = hv_vmbus_channel_open(hv_dev->channel, 4 * PAGE_SIZE,
4 * PAGE_SIZE, NULL, 0,		4 * PAGE_SIZE, NULL, 0,
service->callback, hv_dev->channel);		service->callback, hv_dev->channel);

if (ret)		if (ret)
goto error0;		goto error0;

return (0);		return (0);
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