Re: [dpdk-dev] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2

Re: [dpdk-dev] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2

[Jerin Jacob Kollanukkaran]

> -----Original Message-----
> From: Gavin Hu <gavin.hu@arm.com>
> Sent: Thursday, August 1, 2019 5:18 AM
> To: dev@dpdk.org
> Cc: nd@arm.com; thomas@monjalon.net; hemant.agrawal@nxp.com; Jerin
> Jacob Kollanukkaran <jerinj@marvell.com>; Pavan Nikhilesh Bhagavatula
> <pbhagavatula@marvell.com>; Honnappa.Nagarahalli@arm.com;
> stable@dpdk.org
> Subject: [EXT] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2
> 
> With "-march=armv8.2-a" specified, a compiling error generated:
> app/test/test_rcu_qsbr.c:234:10: error: comparison of integer expressions of
> different signedness: ‘unsigned int’ and ‘int’
> [-Werror=sign-compare]
> 
> Fixes: b87089b0bb19 ("test/rcu: add API and functional tests")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> Reviewed-by: Steve Capper <steve.capper@arm.com>


Reviewed-by: Jerin Jacob <jerinj@marvell.com>


> ---
>  app/test/test_rcu_qsbr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/app/test/test_rcu_qsbr.c b/app/test/test_rcu_qsbr.c index
> 1d273e3..b008c9d 100644
> --- a/app/test/test_rcu_qsbr.c
> +++ b/app/test/test_rcu_qsbr.c
> @@ -231,7 +231,7 @@ test_rcu_qsbr_thread_unregister(void)
>  		/* Update quiescent state counter */
>  		for (i = 0; i < num_threads[j]; i++) {
>  			/* Skip one update */
> -			if (i == (RTE_MAX_LCORE - 10))
> +			if (i == (unsigned int)(RTE_MAX_LCORE - 10))
>  				continue;
>  			rte_rcu_qsbr_quiescent(t[0],
>  				(j == 2) ? (RTE_MAX_LCORE - 1) : i);
> --
> 2.7.4

Re: [dpdk-dev] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2

[Honnappa Nagarahalli]

<snip>

> > Subject: [EXT] [PATCH v2 1/3] test/rcu: fix the compiling error for
> > armv8.2
> >
> > With "-march=armv8.2-a" specified, a compiling error generated:
> > app/test/test_rcu_qsbr.c:234:10: error: comparison of integer
> > expressions of different signedness: ‘unsigned int’ and ‘int’
> > [-Werror=sign-compare]
> >
> > Fixes: b87089b0bb19 ("test/rcu: add API and functional tests")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> > Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> > Reviewed-by: Steve Capper <steve.capper@arm.com>
> 
> 
> Reviewed-by: Jerin Jacob <jerinj@marvell.com>
This should be fixed already due to commit 104dbec2081.
Gavin, can you please verify? If yes, we can skip this patch.

> 
> 
> > ---
> >  app/test/test_rcu_qsbr.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/app/test/test_rcu_qsbr.c b/app/test/test_rcu_qsbr.c index
> > 1d273e3..b008c9d 100644
> > --- a/app/test/test_rcu_qsbr.c
> > +++ b/app/test/test_rcu_qsbr.c
> > @@ -231,7 +231,7 @@ test_rcu_qsbr_thread_unregister(void)
> >  		/* Update quiescent state counter */
> >  		for (i = 0; i < num_threads[j]; i++) {
> >  			/* Skip one update */
> > -			if (i == (RTE_MAX_LCORE - 10))
> > +			if (i == (unsigned int)(RTE_MAX_LCORE - 10))
> >  				continue;
> >  			rte_rcu_qsbr_quiescent(t[0],
> >  				(j == 2) ? (RTE_MAX_LCORE - 1) : i);
> > --
> > 2.7.4

Re: [dpdk-dev] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2

[Gavin Hu (Arm Technology China)]

Hi Honnappa,

> -----Original Message-----
> From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
> Sent: Thursday, September 12, 2019 10:43 PM
> To: jerinj@marvell.com; Gavin Hu (Arm Technology China)
> <Gavin.Hu@arm.com>; dev@dpdk.org
> Cc: nd <nd@arm.com>; thomas@monjalon.net; hemant.agrawal@nxp.com;
> Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>; stable@dpdk.org;
> Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>; nd <nd@arm.com>
> Subject: RE: [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2
> 
> <snip>
> 
> > > Subject: [EXT] [PATCH v2 1/3] test/rcu: fix the compiling error for
> > > armv8.2
> > >
> > > With "-march=armv8.2-a" specified, a compiling error generated:
> > > app/test/test_rcu_qsbr.c:234:10: error: comparison of integer
> > > expressions of different signedness: ‘unsigned int’ and ‘int’
> > > [-Werror=sign-compare]
> > >
> > > Fixes: b87089b0bb19 ("test/rcu: add API and functional tests")
> > > Cc: stable@dpdk.org
> > >
> > > Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> > > Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> > > Reviewed-by: Steve Capper <steve.capper@arm.com>
> >
> >
> > Reviewed-by: Jerin Jacob <jerinj@marvell.com>
> This should be fixed already due to commit 104dbec2081.
> Gavin, can you please verify? If yes, we can skip this patch.
No, just ran and the issue persisted with the above commit in place. 
I see the above commit was to fix a limited range of data type issue, this commit is to fix a signedness issue.
~/dpdk/app/test/test_rcu_qsbr.c: In function ‘test_rcu_qsbr_thread_unregister’:
~/dpdk/app/test/test_rcu_qsbr.c:233:10: error: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’ [-Werror=sign-compare]
    if (i == (RTE_MAX_LCORE - 10))
> 
> >
> >
> > > ---
> > >  app/test/test_rcu_qsbr.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/app/test/test_rcu_qsbr.c b/app/test/test_rcu_qsbr.c index
> > > 1d273e3..b008c9d 100644
> > > --- a/app/test/test_rcu_qsbr.c
> > > +++ b/app/test/test_rcu_qsbr.c
> > > @@ -231,7 +231,7 @@ test_rcu_qsbr_thread_unregister(void)
> > >  /* Update quiescent state counter */
> > >  for (i = 0; i < num_threads[j]; i++) {
> > >  /* Skip one update */
> > > -if (i == (RTE_MAX_LCORE - 10))
> > > +if (i == (unsigned int)(RTE_MAX_LCORE - 10))
> > >  continue;
> > >  rte_rcu_qsbr_quiescent(t[0],
> > >  (j == 2) ? (RTE_MAX_LCORE - 1) : i);
> > > --
> > > 2.7.4
> 

Re: [dpdk-dev] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2

[Honnappa Nagarahalli]

> > <snip>
> >
> > > > Subject: [EXT] [PATCH v2 1/3] test/rcu: fix the compiling error
> > > > for
> > > > armv8.2
> > > >
> > > > With "-march=armv8.2-a" specified, a compiling error generated:
> > > > app/test/test_rcu_qsbr.c:234:10: error: comparison of integer
> > > > expressions of different signedness: ‘unsigned int’ and ‘int’
> > > > [-Werror=sign-compare]
> > > >
> > > > Fixes: b87089b0bb19 ("test/rcu: add API and functional tests")
> > > > Cc: stable@dpdk.org
> > > >
> > > > Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> > > > Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> > > > Reviewed-by: Steve Capper <steve.capper@arm.com>
> > >
> > >
> > > Reviewed-by: Jerin Jacob <jerinj@marvell.com>
> > This should be fixed already due to commit 104dbec2081.
> > Gavin, can you please verify? If yes, we can skip this patch.
> No, just ran and the issue persisted with the above commit in place.
> I see the above commit was to fix a limited range of data type issue, this
> commit is to fix a signedness issue.
> ~/dpdk/app/test/test_rcu_qsbr.c: In function
> ‘test_rcu_qsbr_thread_unregister’:
> ~/dpdk/app/test/test_rcu_qsbr.c:233:10: error: comparison of integer
> expressions of different signedness: ‘unsigned int’ and ‘int’ [-Werror=sign-
> compare]
>     if (i == (RTE_MAX_LCORE - 10))
Ok, it is the right side of the 'if' (not the left side).

Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>

> >
> > >
> > >
> > > > ---
> > > >  app/test/test_rcu_qsbr.c | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/app/test/test_rcu_qsbr.c b/app/test/test_rcu_qsbr.c
> > > > index 1d273e3..b008c9d 100644
> > > > --- a/app/test/test_rcu_qsbr.c
> > > > +++ b/app/test/test_rcu_qsbr.c
> > > > @@ -231,7 +231,7 @@ test_rcu_qsbr_thread_unregister(void)
> > > >  /* Update quiescent state counter */  for (i = 0; i <
> > > > num_threads[j]; i++) {
> > > >  /* Skip one update */
> > > > -if (i == (RTE_MAX_LCORE - 10))
> > > > +if (i == (unsigned int)(RTE_MAX_LCORE - 10))
> > > >  continue;
> > > >  rte_rcu_qsbr_quiescent(t[0],
> > > >  (j == 2) ? (RTE_MAX_LCORE - 1) : i);
> > > > --
> > > > 2.7.4
> >
> 

[dpdk-dev] [PATCH v2 0/3] add arm neoverse N1 SDP configuration

[Gavin Hu]

Nerverse N1 is a new SoC based on armv8.2-a and with other advanced features.
N1 SDP is the infrastructure segment development platform with N1 SoC inside.
Here is more information about it:
https://community.arm.com/developer/tools-software/oss-platforms/w/docs/440/neoverse-n1-sdp

V2:
Add the cover letter and the patch for cortex-a76 configuration

Gavin Hu (3):
  test/rcu: fix the compiling error for armv8.2
  config: add arm neoverse N1 SDP configuration
  config: add cortex-a76 configuration

 app/test/test_rcu_qsbr.c                       |  2 +-
 config/arm/meson.build                         | 10 +++++++-
 config/defconfig_arm64-neoversen1-linux-gcc    |  1 +
 config/defconfig_arm64-neoversen1-linuxapp-gcc | 15 ++++++++++++
 mk/machine/neoversen1/rte.vars.mk              | 34 ++++++++++++++++++++++++++
 5 files changed, 60 insertions(+), 2 deletions(-)
 create mode 120000 config/defconfig_arm64-neoversen1-linux-gcc
 create mode 100644 config/defconfig_arm64-neoversen1-linuxapp-gcc
 create mode 100644 mk/machine/neoversen1/rte.vars.mk

-- 
2.7.4

[dpdk-dev] [PATCH 1/2] test/rcu: fix the compiling error for armv8.2

[Gavin Hu]

With "-march=armv8.2-a" specified, a compiling error generated:
app/test/test_rcu_qsbr.c:234:10: error: comparison of integer
expressions of different signedness: ‘unsigned int’ and ‘int’
[-Werror=sign-compare]

Fixes: b87089b0bb19 ("test/rcu: add API and functional tests")
Cc: stable@dpdk.org

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
---
 app/test/test_rcu_qsbr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/test/test_rcu_qsbr.c b/app/test/test_rcu_qsbr.c
index 1d273e3..b008c9d 100644
--- a/app/test/test_rcu_qsbr.c
+++ b/app/test/test_rcu_qsbr.c
@@ -231,7 +231,7 @@ test_rcu_qsbr_thread_unregister(void)
 		/* Update quiescent state counter */
 		for (i = 0; i < num_threads[j]; i++) {
 			/* Skip one update */
-			if (i == (RTE_MAX_LCORE - 10))
+			if (i == (unsigned int)(RTE_MAX_LCORE - 10))
 				continue;
 			rte_rcu_qsbr_quiescent(t[0],
 				(j == 2) ? (RTE_MAX_LCORE - 1) : i);
-- 
2.7.4

[dpdk-dev] [PATCH v2 1/3] test/rcu: fix the compiling error for armv8.2

[Gavin Hu]

With "-march=armv8.2-a" specified, a compiling error generated:
app/test/test_rcu_qsbr.c:234:10: error: comparison of integer
expressions of different signedness: ‘unsigned int’ and ‘int’
[-Werror=sign-compare]

Fixes: b87089b0bb19 ("test/rcu: add API and functional tests")
Cc: stable@dpdk.org

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
---
 app/test/test_rcu_qsbr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/test/test_rcu_qsbr.c b/app/test/test_rcu_qsbr.c
index 1d273e3..b008c9d 100644
--- a/app/test/test_rcu_qsbr.c
+++ b/app/test/test_rcu_qsbr.c
@@ -231,7 +231,7 @@ test_rcu_qsbr_thread_unregister(void)
 		/* Update quiescent state counter */
 		for (i = 0; i < num_threads[j]; i++) {
 			/* Skip one update */
-			if (i == (RTE_MAX_LCORE - 10))
+			if (i == (unsigned int)(RTE_MAX_LCORE - 10))
 				continue;
 			rte_rcu_qsbr_quiescent(t[0],
 				(j == 2) ? (RTE_MAX_LCORE - 1) : i);
-- 
2.7.4