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

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

[Honnappa Nagarahalli]

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@schaman.hu

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@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

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

[Honnappa Nagarahalli]

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@arm.com>
> Sent: Thursday, October 14, 2021 3:56 PM
> To: dev@dpdk.org; Honnappa Nagarahalli
> <Honnappa.Nagarahalli@arm.com>; andrew.rybchenko@oktetlabs.ru;
> konstantin.ananyev@intel.com
> Cc: nd <nd@arm.com>; zoltan.kiss@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@schaman.hu
> 
> Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@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

Re: [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@arm.com>
> Sent: 2021年10月18日 22:54
> To: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>; dev@dpdk.org;
> andrew.rybchenko@oktetlabs.ru; Ananyev, Konstantin
> <konstantin.ananyev@intel.com>
> Cc: nd <nd@arm.com>; zoltan.kiss@schaman.hu; Tu, Lijuan
> <lijuan.tu@intel.com>; nd <nd@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@arm.com>
> > Sent: Thursday, October 14, 2021 3:56 PM
> > To: dev@dpdk.org; Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>;
> > andrew.rybchenko@oktetlabs.ru; konstantin.ananyev@intel.com
> > Cc: nd <nd@arm.com>; zoltan.kiss@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@schaman.hu
> >
> > Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@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

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

[Ananyev, Konstantin]

> 
> 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@schaman.hu
> 
> Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@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;
> --

Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

> 2.25.1

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

[David Marchand]

On Thu, Oct 21, 2021 at 1:07 AM Ananyev, Konstantin
<konstantin.ananyev@intel.com> wrote:
> > 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")
> >
> > Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

Applied, thanks.

-- 
David Marchand