vmbus_set_monitor(dev, chan->monitor_id);
}
+/*
+ * Set the wait between when hypervisor examines the trigger.
+ */
+void
+rte_vmbus_set_latency(const struct rte_vmbus_device *dev,
+ const struct vmbus_channel *chan,
+ uint32_t latency)
+{
+ uint32_t trig_idx = chan->monitor_id / VMBUS_MONTRIG_LEN;
+ uint32_t trig_offs = chan->monitor_id % VMBUS_MONTRIG_LEN;
+
+ if (latency >= UINT16_MAX * 100) {
+ VMBUS_LOG(ERR, "invalid latency value %u", latency);
+ return;
+ }
+
+ if (trig_idx >= VMBUS_MONTRIGS_MAX) {
+ VMBUS_LOG(ERR, "invalid monitor trigger %u",
+ trig_idx);
+ return;
+ }
+
+ /* Host value is expressed in 100 nanosecond units */
+ dev->monitor_page->lat[trig_idx][trig_offs] = latency / 100;
+}
+
/*
* Notify host that there are data pending on our TX bufring.
*
int rte_vmbus_chan_open(struct rte_vmbus_device *device,
struct vmbus_channel **new_chan)
{
+ struct mapped_vmbus_resource *uio_res;
int err;
+ uio_res = vmbus_uio_find_resource(device);
+ if (!uio_res) {
+ VMBUS_LOG(ERR, "can't find uio resource");
+ return -EINVAL;
+ }
+
err = vmbus_chan_create(device, device->relid, 0,
device->monitor_id, new_chan);
- if (!err)
+ if (!err) {
device->primary = *new_chan;
+ uio_res->primary = *new_chan;
+ }
return err;
}
const struct rte_vmbus_device *device = chan->device;
struct vmbus_channel *primary = device->primary;
- if (chan != primary)
+ /*
+ * intentionally leak primary channel because
+ * secondary may still reference it
+ */
+ if (chan != primary) {
STAILQ_REMOVE(&primary->subchannel_list, chan,
vmbus_channel, next);
+ rte_free(chan);
+ }
- rte_free(chan);
}
static void vmbus_dump_ring(FILE *f, const char *id, const struct vmbus_br *br)