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From: Jia He <hejianet@gmail.com>
To: jerin.jacob@caviumnetworks.com, dev@dpdk.org, olivier.matz@6wind.com
Cc: konstantin.ananyev@intel.com, bruce.richardson@intel.com,
	jianbo.liu@arm.com, hemant.agrawal@nxp.com,
	Jia He <jia.he@hxt-semitech.com>
Subject: [dpdk-dev] [PATCH v5 0/3] support c11 memory model barrier in librte_ring
Date: Fri, 10 Nov 2017 05:23:09 +0000	[thread overview]
Message-ID: <1510291392-33251-1-git-send-email-hejianet@gmail.com> (raw)
In-Reply-To: <1510278669-8489-1-git-send-email-hejianet@gmail.com>

From: Jia He <jia.he@hxt-semitech.com>

To support C11 memory model barrier, 2 options are suggested by Jerin:
1. use rte_smp_rmb
2. use load_acquire/store_release
CONFIG_RTE_RING_USE_C11_MEM_MODEL is provided, and by default it is "y"
only on arm64 so far.

The reason why providing 2 options is due to the performance benchmark
difference in different arm machines.

Already fuctionally tested on the machines as follows:
- on X86
- on arm64 with CONFIG_RTE_RING_USE_C11_MEM_MODEL=y
- on arm64 with CONFIG_RTE_RING_USE_C11_MEM_MODEL=n

---
Changelog:
V5: split it into 2 patchset due to the milestone concerns, this is the 2st 
    one. Also fix checkpatch.pl warnings
V4: split into small patches
V3: arch specific implementation for enqueue/dequeue barrier
V2: let users choose whether using load_acquire/store_release
V1: rte_smp_rmb() between 2 loads

*** BLURB HERE ***

Jia He (3):
  eal/arm64: remove the braces {} for dmb() and dsb()
  ring: introduce new header file to include common functions
  ring: introduce new header file to support C11 memory model

 config/common_armv8a_linuxapp                      |   2 +
 .../common/include/arch/arm/rte_atomic_64.h        |   4 +-
 lib/librte_eventdev/rte_event_ring.h               |   6 +-
 lib/librte_ring/Makefile                           |   4 +-
 lib/librte_ring/rte_ring.h                         | 173 ++----------------
 lib/librte_ring/rte_ring_c11_mem.h                 | 186 ++++++++++++++++++++
 lib/librte_ring/rte_ring_generic.h                 | 195 +++++++++++++++++++++
 7 files changed, 406 insertions(+), 164 deletions(-)
 create mode 100644 lib/librte_ring/rte_ring_c11_mem.h
 create mode 100644 lib/librte_ring/rte_ring_generic.h

-- 
2.7.4

  parent reply	other threads:[~2017-11-10  5:23 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1510118764-29697-1-git-send-email-hejianet@gmail.com>
2017-11-08  9:54 ` [dpdk-dev] [PATCH v4 0/4] fix race condition in enqueue/dequeue because of cpu reorder Jia He
2017-11-08  9:54   ` [dpdk-dev] [PATCH v4 1/4] eal/arm64: remove the braces {} for dmb() and dsb() Jia He
2017-11-08  9:54   ` [dpdk-dev] [PATCH v4 2/4] ring: guarantee load/load order in enqueue and dequeue Jia He
2017-11-08  9:54   ` [dpdk-dev] [PATCH v4 3/4] ring: introduce new header file to include common functions Jia He
2017-11-08  9:54   ` [dpdk-dev] [PATCH v4 4/4] ring: introduce new header file to support C11 memory model Jia He
2017-11-08 12:15   ` [dpdk-dev] [PATCH v4 0/4] fix race condition in enqueue/dequeue because of cpu reorder Bruce Richardson
2017-11-08 15:11     ` Jia He
2017-11-08 16:29       ` Jerin Jacob
2017-11-08 18:36       ` Ananyev, Konstantin
     [not found]       ` <2459a535-920e-9ac5-2f46-1d1dd00e275b@gmail.com>
2017-11-24  9:24         ` Bruce Richardson
2017-11-10  1:51 ` [dpdk-dev] [PATCH v5 0/1] " Jia He
2017-11-10  1:51   ` [dpdk-dev] [PATCH v5 1/1] ring: guarantee load/load order in enqueue and dequeue Jia He
2017-11-10  2:46     ` Jerin Jacob
2017-11-10  3:12       ` Jianbo Liu
2017-11-10  9:59     ` Ananyev, Konstantin
2017-11-10  3:30   ` [dpdk-dev] [PATCH v6] " Jia He
2017-11-10  3:30     ` [dpdk-dev] [PATCH v6] ring: " Jia He
2017-11-12 17:51       ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2017-11-10  5:23   ` Jia He [this message]
2017-11-10  5:23     ` [dpdk-dev] [PATCH v5 1/3] eal/arm64: remove the braces {} for dmb() and dsb() Jia He
2017-11-10  5:23     ` [dpdk-dev] [PATCH v5 2/3] ring: introduce new header file to include common functions Jia He
2017-11-10  5:23     ` [dpdk-dev] [PATCH v6 3/3] ring: introduce new header file to support C11 memory model Jia He
2017-11-27  2:00     ` [dpdk-dev] [PATCH V6 0/3] support c11 memory model barrier in librte_ring Jia He
2017-11-27  2:00       ` [dpdk-dev] [PATCH V6 1/3] eal/arm64: remove the braces {} for dmb() and dsb() Jia He
2017-12-03 11:11         ` Jerin Jacob
2017-11-27  2:00       ` [dpdk-dev] [PATCH V6 2/3] ring: introduce new header file to include common functions Jia He
2017-12-03 12:13         ` Jerin Jacob
2017-11-27  2:00       ` [dpdk-dev] [PATCH V6 3/3] ring: introduce new header file to support C11 memory model Jia He
2017-12-03 12:14         ` Jerin Jacob
2017-12-04  1:50       ` [dpdk-dev] [PATCH V7 0/3] support c11 memory model barrier in librte_ring Jia He
2017-12-04  1:50         ` [dpdk-dev] [PATCH V7 1/3] eal/arm64: remove the braces {} for dmb() and dsb() Jia He
2017-12-04  1:50         ` [dpdk-dev] [PATCH V7 2/3] ring: introduce new header file to include common functions Jia He
2018-01-12 17:09           ` Thomas Monjalon
2018-01-16  2:06             ` Jia He
2018-01-16 15:19           ` Olivier Matz
2017-12-04  1:50         ` [dpdk-dev] [PATCH V7 3/3] ring: introduce new header file to support C11 memory model Jia He
2017-12-04  8:05           ` Jianbo Liu
2018-01-12 17:18           ` Thomas Monjalon
2018-01-16 15:18           ` Olivier Matz

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