static int kvp_handle_handshake(struct hv_kvp_msg *msg)
{
int ret = 1;
switch (msg->kvp_hdr.operation) {
case KVP_OP_REGISTER:
dm_reg_value = KVP_OP_REGISTER;
pr_info("KVP: IP injection functionality not available\n");
pr_info("KVP: Upgrade the KVP daemon\n");
break;
case KVP_OP_REGISTER1:
dm_reg_value = KVP_OP_REGISTER1;
break;
default:
pr_info("KVP: incompatible daemon\n");
pr_info("KVP: KVP version: %d, Daemon version: %d\n",
KVP_OP_REGISTER1, msg->kvp_hdr.operation);
ret = 0;
}
if (ret) {
/*
* We have a compatible daemon; complete the handshake.
*/
pr_info("KVP: user-mode registering done.\n");
kvp_register(dm_reg_value);
kvp_transaction.active = false;
if (kvp_transaction.kvp_context)
hv_kvp_onchannelcallback(kvp_transaction.kvp_context);
}
return ret;
}
static void poll_channel(struct vmbus_channel *channel)
{
unsigned long flags;
spin_lock_irqsave(&channel->inbound_lock, flags);
hv_kvp_onchannelcallback(channel);
spin_unlock_irqrestore(&channel->inbound_lock, flags);
}
static void poll_channel(struct vmbus_channel *channel)
{
if (channel->target_cpu != smp_processor_id())
smp_call_function_single(channel->target_cpu,
hv_kvp_onchannelcallback,
channel, true);
else
hv_kvp_onchannelcallback(channel);
}
static void kvp_poll_wrapper(void *channel)
{
/* Transaction is finished, reset the state here to avoid races. */
kvp_transaction.state = HVUTIL_READY;
hv_kvp_onchannelcallback(channel);
}
