[dpdk-dev] [PATCH v4 00/58] net: txgbe PMD

Honnappa Nagarahalli Honnappa.Nagarahalli at arm.com
Fri Nov 6 07:28:47 CET 2020


<snip>

> 
> +Cc Konstantin and Honnappa for guidance
> 
> 05/11/2020 09:55, Jiawen Wu:
> > On Thursday, November 5, 2020 9:55 AM, Jiawen Wu wrote:
> > > On Thursday, November 5, 2020 1:24 AM, Ferruh Yigit wrote:
> > > > On 11/3/2020 11:08 PM, Thomas Monjalon wrote:
> > > > > When pulling in the main branch, I see some checkpatches
> > > > > warnings (in order of criticality):
> > > > > 	Using rte_smp_[r/w]mb
> > > > > 	Using rte_panic/rte_exit
> > > > > 	Using compiler attribute directly
> > > > >
> > > > > Please could you fix them (at least first two) before the second series?
> [...]
> >
> > I saw ' rte_smp_*mb ' is in the deprecation notices, but there is no
> > function can be an alternative.
> > I would like to use 'rte_atomic_thread_fence(__ATOMIC_ACQUIRE)' to
> > replace 'rte_smp_rmb()', is it the correct usage?
Yes, rte_atomic_thread_fence(__ATOMIC_ACQUIRE) is the correct code to replace 'rte_smp_rmb()'.

However, I took a look at the code and it is not clear to me if the barrier is required or if it is in the correct place.

> 
> 
> 



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