[dpdk-dev] [PATCH] ring: fix size of name array in ring structure

[Tu, Lijuan]

I saw a lot of patches failed on test_scatter_mbuf_2048, the case could be passed in intel lab.

This is maintained by UNL guys. 

+ unl.

> -----Original Message-----
> From: Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>
> Sent: 2021年10月18日 22:54
> To: Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>; dev at dpdk.org;
> andrew.rybchenko at oktetlabs.ru; Ananyev, Konstantin
> <konstantin.ananyev at intel.com>
> Cc: nd <nd at arm.com>; zoltan.kiss at schaman.hu; Tu, Lijuan
> <lijuan.tu at intel.com>; nd <nd at arm.com>
> Subject: RE: [PATCH] ring: fix size of name array in ring structure
> 
> This patch has a CI failure in DTS in test_scatter_mbuf_2048 for Fortville_Spirit
> NIC. I am not sure how this change is related to the failure. The log is as follows:
> 
> TestScatter: Test Case test_scatter_mbuf_2048 Result FAILED: 'packet receive
> error'
> 
> Has anyone seen this error? Is this a known issue?
> 
> Thanks,
> Honnappa
> 
> > -----Original Message-----
> > From: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>
> > Sent: Thursday, October 14, 2021 3:56 PM
> > To: dev at dpdk.org; Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>;
> > andrew.rybchenko at oktetlabs.ru; konstantin.ananyev at intel.com
> > Cc: nd <nd at arm.com>; zoltan.kiss at schaman.hu
> > Subject: [PATCH] ring: fix size of name array in ring structure
> >
> > Use correct define for the name array size. The change breaks ABI and
> > hence cannot be backported to stable branches.
> >
> > Fixes: 38c9817ee1d8 ("mempool: adjust name size in related data
> > types")
> > Cc: zoltan.kiss at schaman.hu
> >
> > Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>
> > ---
> >  lib/ring/rte_ring_core.h | 7 +------
> >  1 file changed, 1 insertion(+), 6 deletions(-)
> >
> > diff --git a/lib/ring/rte_ring_core.h b/lib/ring/rte_ring_core.h index
> > 31f7200fa9..46ad584f9c 100644
> > --- a/lib/ring/rte_ring_core.h
> > +++ b/lib/ring/rte_ring_core.h
> > @@ -118,12 +118,7 @@ struct rte_ring_hts_headtail {
> >   * a problem.
> >   */
> >  struct rte_ring {
> > -	/*
> > -	 * Note: this field kept the RTE_MEMZONE_NAMESIZE size due to ABI
> > -	 * compatibility requirements, it could be changed to
> > RTE_RING_NAMESIZE
> > -	 * next time the ABI changes
> > -	 */
> > -	char name[RTE_MEMZONE_NAMESIZE] __rte_cache_aligned;
> > +	char name[RTE_RING_NAMESIZE] __rte_cache_aligned;
> >  	/**< Name of the ring. */
> >  	int flags;               /**< Flags supplied at creation. */
> >  	const struct rte_memzone *memzone;
> > --
> > 2.25.1