[PATCH v2 38/45] bus/vmbus: use rte stdatomic API

[Long Li]

> >   static inline void
> >   vmbus_set_monitor(const struct vmbus_channel *channel, uint32_t
> monitor_id)
> >   {
> > -	uint32_t *monitor_addr, monitor_mask;
> > +	RTE_ATOMIC(uint32_t) *monitor_addr, monitor_mask;
> >   	unsigned int trigger_index;
> >
> >   	trigger_index = monitor_id / HV_MON_TRIG_LEN;
> >   	monitor_mask = 1u << (monitor_id % HV_MON_TRIG_LEN);
> >
> > -	monitor_addr = &channel->monitor_page->trigs[trigger_index].pending;
> > +	monitor_addr =
> > +	    (uint32_t __rte_atomic
> > +*)&channel->monitor_page->trigs[trigger_index].pending;
> 
> Why is "pending" not RTE_ATOMIC()?

The usage is okay. The value is used to notify the VSP (Hyper-V). It's always set (no read) from DPDK.

Linux kernel driver does the same thing.

Long