From: "Eads, Gage" <gage.eads@intel.com>
To: Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
Phil Yang <phil.yang@arm.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "thomas@monjalon.net" <thomas@monjalon.net>,
"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
"Honnappa.Nagarahalli@arm.com" <Honnappa.Nagarahalli@arm.com>,
"gavin.hu@arm.com" <gavin.hu@arm.com>, "nd@arm.com" <nd@arm.com>
Subject: Re: [dpdk-dev] [EXT] [PATCH v3 3/3] eal/stack: enable lock-free stack for aarch64
Date: Fri, 19 Jul 2019 04:42:09 +0000 [thread overview]
Message-ID: <9184057F7FC11744A2107296B6B8EB1E68D23943@FMSMSX108.amr.corp.intel.com> (raw)
In-Reply-To: <BYAPR18MB2424150BB6388F7CD63C1B63C8CB0@BYAPR18MB2424.namprd18.prod.outlook.com>
> -----Original Message-----
> From: Jerin Jacob Kollanukkaran [mailto:jerinj@marvell.com]
> Sent: Thursday, July 18, 2019 11:18 PM
> To: Phil Yang <phil.yang@arm.com>; dev@dpdk.org
> Cc: thomas@monjalon.net; hemant.agrawal@nxp.com;
> Honnappa.Nagarahalli@arm.com; gavin.hu@arm.com; nd@arm.com; Eads,
> Gage <gage.eads@intel.com>
> Subject: RE: [EXT] [PATCH v3 3/3] eal/stack: enable lock-free stack for
> aarch64
>
> > -----Original Message-----
> > From: Phil Yang <phil.yang@arm.com>
> > Sent: Friday, June 28, 2019 1:42 PM
> > To: dev@dpdk.org
> > Cc: thomas@monjalon.net; Jerin Jacob Kollanukkaran
> > <jerinj@marvell.com>; hemant.agrawal@nxp.com;
> > Honnappa.Nagarahalli@arm.com; gavin.hu@arm.com; nd@arm.com;
> > gage.eads@intel.com
> > Subject: [EXT] [PATCH v3 3/3] eal/stack: enable lock-free stack for
> > aarch64 Enable both c11 atomic and non c11 atomic lock-free stack for
> aarch64.
> >
> > Signed-off-by: Phil Yang <phil.yang@arm.com>
> > Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> > Tested-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> >
> > Removed Items
> > -------------
> > diff --git a/lib/librte_stack/rte_stack_lf_c11.h
> > b/lib/librte_stack/rte_stack_lf_c11.h
> > index 3d677ae..67c21fd 100644
> > --- a/lib/librte_stack/rte_stack_lf_c11.h
> > +++ b/lib/librte_stack/rte_stack_lf_c11.h
> > @@ -36,7 +36,7 @@ __rte_stack_lf_push_elems(struct rte_stack_lf_list
> > *list,
> > struct rte_stack_lf_elem *last,
> > unsigned int num)
> > {
> > -#ifndef RTE_ARCH_X86_64
> > +#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
> > RTE_SET_USED(first);
> > RTE_SET_USED(last);
> > RTE_SET_USED(list);
> > @@ -88,7 +88,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list
> *list,
> > void **obj_table,
> > struct rte_stack_lf_elem **last)
> > {
> > -#ifndef RTE_ARCH_X86_64
> > +#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
> > RTE_SET_USED(obj_table);
> > RTE_SET_USED(last);
> > RTE_SET_USED(list);
> > diff --git a/lib/librte_stack/rte_stack_lf_generic.h
> > b/lib/librte_stack/rte_stack_lf_generic.h
> > index 3182151..488fd9f 100644
> > --- a/lib/librte_stack/rte_stack_lf_generic.h
> > +++ b/lib/librte_stack/rte_stack_lf_generic.h
> > @@ -36,7 +36,7 @@ __rte_stack_lf_push_elems(struct rte_stack_lf_list
> > *list,
> > struct rte_stack_lf_elem *last,
> > unsigned int num)
> > {
> > -#ifndef RTE_ARCH_X86_64
> > +#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
> > RTE_SET_USED(first);
> > RTE_SET_USED(last);
> > RTE_SET_USED(list);
> > @@ -84,7 +84,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list
> *list,
> > void **obj_table,
> > struct rte_stack_lf_elem **last)
> > {
> > -#ifndef RTE_ARCH_X86_64
> > +#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
> > RTE_SET_USED(obj_table);
> > RTE_SET_USED(last);
> > RTE_SET_USED(list);
>
>
> Can we remove this all #ifdef clutter by adding the following
>
> $ git diff
> diff --git a/lib/librte_stack/rte_stack_lf.h b/lib/librte_stack/rte_stack_lf.h
> index f5581f0c2..46af08b83 100644
> --- a/lib/librte_stack/rte_stack_lf.h
> +++ b/lib/librte_stack/rte_stack_lf.h
> @@ -5,7 +5,7 @@
> #ifndef _RTE_STACK_LF_H_
> #define _RTE_STACK_LF_H_
>
> -#ifdef RTE_USE_C11_MEM_MODEL
> +#if defined (RTE_USE_C11_MEM_MODEL) && defined(RTE_ARCH_X86_64)
> &&
> +defined(RTE_ARCH_ARM64)
I assume you meant (defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_ARM64))?
> #include "rte_stack_lf_c11.h"
> #else
> #include "rte_stack_lf_generic.h"
>
>
The ifdefs in those two headers prevent DPDK from trying to build rte_atomic128_cmp_exchange() on architectures that don't implement it. So the proposal wouldn't quite work, since rte_stack_lf_generic.h calls rte_atomic128_cmp_exchange().
Something like this could work:
#if !(defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_ARM64))
#include rte_stack_lf_stubs.h
#else
#ifdef RTE_USE_C11_MEM_MODEL
#include "rte_stack_lf_c11.h"
#else
#include "rte_stack_lf_generic.h"
#endif
#endif
Where rte_stack_lf_stubs.h is a new header containing stub implementations of __rte_stack_lf_count, __rte_stack_lf_push_elems, and __rte_stack_lf_pop_elems. It still has some ifdef clutter, but less overall.
next prev parent reply other threads:[~2019-07-19 4:42 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-23 2:41 [dpdk-dev] [PATCH v1 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-06-23 2:41 ` [dpdk-dev] [PATCH v1 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-06-23 2:41 ` [dpdk-dev] [PATCH v1 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-06-23 3:15 ` [dpdk-dev] [PATCH v2 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-06-23 3:15 ` [dpdk-dev] [PATCH v2 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-06-24 15:09 ` Eads, Gage
2019-06-24 15:29 ` Phil Yang (Arm Technology China)
2019-06-23 3:15 ` [dpdk-dev] [PATCH v2 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-06-24 15:15 ` Eads, Gage
2019-06-24 15:22 ` Phil Yang (Arm Technology China)
2019-06-24 14:46 ` [dpdk-dev] [PATCH v2 1/3] eal/arm64: add 128-bit atomic compare exchange Eads, Gage
2019-06-24 15:35 ` Phil Yang (Arm Technology China)
2019-06-28 8:11 ` [dpdk-dev] [PATCH v3 " Phil Yang
2019-06-28 8:11 ` [dpdk-dev] [PATCH v3 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-06-29 0:17 ` Eads, Gage
2019-07-19 4:03 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-06-28 8:11 ` [dpdk-dev] [PATCH v3 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-06-29 0:18 ` Eads, Gage
2019-07-19 4:18 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-19 4:42 ` Eads, Gage [this message]
2019-07-19 5:02 ` Jerin Jacob Kollanukkaran
2019-07-19 5:15 ` Phil Yang (Arm Technology China)
2019-07-03 12:25 ` [dpdk-dev] [EXT] [PATCH v3 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-03 13:07 ` Jerin Jacob Kollanukkaran
2019-07-05 4:20 ` Honnappa Nagarahalli
2019-07-05 4:37 ` Pavan Nikhilesh Bhagavatula
2019-07-09 9:27 ` Phil Yang (Arm Technology China)
2019-07-09 11:14 ` Jerin Jacob Kollanukkaran
2019-07-19 6:24 ` Jerin Jacob Kollanukkaran
2019-07-19 11:01 ` Phil Yang (Arm Technology China)
2019-07-19 12:35 ` Jerin Jacob Kollanukkaran
2019-07-19 13:56 ` Phil Yang (Arm Technology China)
2019-07-19 14:50 ` Eads, Gage
2019-07-22 8:44 ` [dpdk-dev] [PATCH v4 " Phil Yang
2019-07-22 8:44 ` [dpdk-dev] [PATCH v4 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-22 8:44 ` [dpdk-dev] [PATCH v4 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-22 10:22 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-22 11:51 ` Phil Yang (Arm Technology China)
2019-07-22 10:20 ` [dpdk-dev] [EXT] [PATCH v4 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-22 11:50 ` Phil Yang (Arm Technology China)
2019-07-22 13:06 ` [dpdk-dev] [PATCH v5 " Phil Yang
2019-07-22 13:06 ` [dpdk-dev] [PATCH v5 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-22 13:06 ` [dpdk-dev] [PATCH v5 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-22 14:14 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-22 15:19 ` Phil Yang (Arm Technology China)
2019-07-22 14:34 ` [dpdk-dev] " Eads, Gage
2019-07-22 14:43 ` Phil Yang (Arm Technology China)
2019-07-22 14:19 ` [dpdk-dev] [EXT] [PATCH v5 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-22 16:23 ` Phil Yang (Arm Technology China)
2019-07-22 16:22 ` [dpdk-dev] [PATCH v6 " Phil Yang
2019-07-22 16:22 ` [dpdk-dev] [PATCH v6 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-22 16:22 ` [dpdk-dev] [PATCH v6 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-22 16:59 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-22 16:57 ` [dpdk-dev] [EXT] [PATCH v6 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-23 3:28 ` Phil Yang (Arm Technology China)
2019-07-23 7:09 ` Jerin Jacob Kollanukkaran
2019-07-23 7:53 ` Phil Yang (Arm Technology China)
2019-07-23 5:57 ` [dpdk-dev] [PATCH v7 " Phil Yang
2019-07-23 5:57 ` [dpdk-dev] [PATCH v7 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-23 5:57 ` [dpdk-dev] [PATCH v7 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-23 7:05 ` [dpdk-dev] [PATCH v8 1/3] eal/arm64: add 128-bit atomic compare exchange jerinj
2019-07-23 7:05 ` [dpdk-dev] [PATCH v8 2/3] test/atomic: add 128b compare and swap test jerinj
2019-07-23 7:05 ` [dpdk-dev] [PATCH v8 3/3] eal/stack: enable lock-free stack for aarch64 jerinj
2019-08-14 8:27 ` [dpdk-dev] [PATCH v9 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-08-14 8:27 ` [dpdk-dev] [PATCH v9 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-10-14 15:45 ` David Marchand
2019-10-15 11:32 ` Phil Yang (Arm Technology China)
2019-08-14 8:27 ` [dpdk-dev] [PATCH v9 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-10-14 15:45 ` David Marchand
2019-10-15 11:32 ` Phil Yang (Arm Technology China)
2019-10-14 15:43 ` [dpdk-dev] [PATCH v9 1/3] eal/arm64: add 128-bit atomic compare exchange David Marchand
2019-10-15 11:32 ` Phil Yang (Arm Technology China)
2019-10-15 12:16 ` David Marchand
2019-10-16 9:04 ` Phil Yang (Arm Technology China)
2019-10-17 12:45 ` David Marchand
2019-10-15 11:38 ` [dpdk-dev] [PATCH v10 " Phil Yang
2019-10-15 11:38 ` [dpdk-dev] [PATCH v10 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-10-15 11:38 ` [dpdk-dev] [PATCH v10 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-10-18 11:21 ` [dpdk-dev] [PATCH v11 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-10-18 11:21 ` [dpdk-dev] [PATCH v11 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-10-21 8:25 ` David Marchand
2019-10-18 11:21 ` [dpdk-dev] [PATCH v11 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-10-21 8:26 ` David Marchand
2019-10-18 14:16 ` [dpdk-dev] [PATCH v11 1/3] eal/arm64: add 128-bit atomic compare exchange David Marchand
2019-10-18 14:24 ` Jerin Jacob
2019-10-18 14:33 ` David Marchand
2019-10-18 14:36 ` Jerin Jacob
2019-10-21 8:24 ` David Marchand
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