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From: Gage Eads <gage.eads@intel.com>
To: dev@dpdk.org
Cc: olivier.matz@6wind.com, arybchenko@solarflare.com,
	bruce.richardson@intel.com, konstantin.ananyev@intel.com,
	gavin.hu@arm.com, Honnappa.Nagarahalli@arm.com, nd@arm.com,
	chaozhu@linux.vnet.ibm.com, jerinj@marvell.com,
	hemant.agrawal@nxp.com
Subject: [PATCH 0/1] Add 128-bit compare and set
Date: Mon, 28 Jan 2019 11:29:44 -0600	[thread overview]
Message-ID: <20190128172945.27251-1-gage.eads@intel.com> (raw)

This patch addresses x86-64 only; other architectures can/will be supported
in the future. The __atomic intrinsic was considered for the
implementation, however libatomic was found[1] to use locks to implement
the 128-bit CAS on at least one architecture and so is eschewed here.
The interface is modeled after the __atomic_compare_exchange_16 (which
itself is based on the C++11 memory model) to best support weak
consistency architectures.

This patch was originally part of a series that introduces a non-blocking stack
mempool handler[2], and is required by a non-blocking ring patchset. This
patch was spun off so that the the NB ring depends only on this patch
and not the entire non-blocking stack patchset.

[1] http://mails.dpdk.org/archives/dev/2019-January/124002.html
[1] http://mails.dpdk.org/archives/dev/2019-January/123653.html

Gage Eads (1):
  eal: add 128-bit cmpset (x86-64 only)

 .../common/include/arch/x86/rte_atomic_64.h        | 31 +++++++++++
 lib/librte_eal/common/include/generic/rte_atomic.h | 65 ++++++++++++++++++++++
 2 files changed, 96 insertions(+)

-- 
2.13.6

             reply	other threads:[~2019-01-28 17:29 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-28 17:29 Gage Eads [this message]
2019-01-28 17:29 ` [PATCH 1/1] eal: add 128-bit cmpset (x86-64 only) Gage Eads
2019-01-28 23:01   ` Ola Liljedahl
2019-02-01 17:06     ` Eads, Gage
2019-02-01 19:01       ` Ola Liljedahl
2019-02-01 19:28         ` Eads, Gage
2019-02-01 19:43           ` Ola Liljedahl
2019-02-01 21:05             ` Eads, Gage
2019-02-01 23:11               ` Ola Liljedahl
2019-02-04 18:33       ` Honnappa Nagarahalli
2019-01-31  5:48   ` Honnappa Nagarahalli
2019-02-01 17:11     ` Eads, Gage
2019-02-22 15:46 ` [PATCH v2 0/1] Add 128-bit compare and set Gage Eads
2019-02-22 15:46   ` [PATCH v2 1/1] eal: add 128-bit cmpxchg (x86-64 only) Gage Eads
2019-03-04 20:19     ` Honnappa Nagarahalli
2019-03-04 20:47       ` Eads, Gage
2019-03-04 20:51   ` [PATCH v3 0/1] Add 128-bit compare and set Gage Eads
2019-03-04 20:51     ` [PATCH v3 1/1] eal: add 128-bit compare exchange (x86-64 only) Gage Eads
2019-03-27 23:12       ` Thomas Monjalon
2019-03-28 16:22         ` Eads, Gage
2019-04-03 17:34     ` [PATCH v4 0/1] Add 128-bit compare and set Gage Eads
2019-04-03 17:34       ` [PATCH v4 1/1] eal: add 128-bit compare exchange (x86-64 only) Gage Eads
2019-04-03 19:04         ` Thomas Monjalon
2019-04-03 19:21           ` Eads, Gage
2019-04-03 19:27             ` Thomas Monjalon
2019-04-03 19:35 ` [PATCH v5] eal/x86: add 128-bit atomic compare exchange Thomas Monjalon
2019-04-03 19:44   ` [PATCH v6] " Gage Eads
2019-04-03 20:01     ` Thomas Monjalon
2019-04-04 11:47     ` Ferruh Yigit
2019-04-04 12:08       ` Thomas Monjalon
2019-04-04 12:12         ` Thomas Monjalon
2019-04-04 12:14           ` Eads, Gage
2019-04-04 12:18             ` Thomas Monjalon
2019-04-04 12:22               ` Eads, Gage
2019-04-04 12:24               ` Eads, Gage
2019-04-04 12:52               ` Ferruh Yigit

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