DPDK patches and discussions
 help / color / mirror / Atom feed
From: Thomas Monjalon <thomas@monjalon.net>
To: Gavin Hu <gavin.hu@arm.com>
Cc: dev@dpdk.org, stephen@networkplumber.org, olivier.matz@6wind.com,
	chaozhu@linux.vnet.ibm.com, bruce.richardson@intel.com,
	konstantin.ananyev@intel.com, jerin.jacob@caviumnetworks.com,
	Honnappa.Nagarahalli@arm.com
Subject: Re: [dpdk-dev] [PATCH v1 0/2] ring C11 library fix and optimization
Date: Tue, 13 Nov 2018 16:57:49 +0100	[thread overview]
Message-ID: <2246047.F6nQ2GSFza@xps> (raw)
In-Reply-To: <1541763767-7399-1-git-send-email-gavin.hu@arm.com>

09/11/2018 12:42, Gavin Hu:
> V1:
> Update the ring C11 library including the following changes:
> 1) On relaxed ordering platforms(like Arm64,PPPC), in ring C11 implementation,
>    loading head and tail might be reodered, this makes CAS(compare and retry
>    the flow if the head is outdated) not working as expected, the fix is to
>    ensure the head is read before the tail, leaving no chances of the combination
>    of outdated head and new tail.
> 2) With the above memory fence introduced, some loading can be relaxed.
> 
> Gavin Hu (2):
>   ring: keep the deterministic order allowing retry to work
>   ring: relaxed ordering for load and store the head

No comment, so I guess it can enter in 18.11-rc3.
Applied, thanks

      parent reply	other threads:[~2018-11-13 15:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-09 11:42 Gavin Hu
2018-11-09 11:42 ` [dpdk-dev] [PATCH v1 1/2] ring: keep the deterministic order allowing retry to work Gavin Hu
2018-11-09 11:42 ` [dpdk-dev] [PATCH v1 2/2] ring: relaxed ordering for load and store the head Gavin Hu
2018-11-13 15:57 ` Thomas Monjalon [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2246047.F6nQ2GSFza@xps \
    --to=thomas@monjalon.net \
    --cc=Honnappa.Nagarahalli@arm.com \
    --cc=bruce.richardson@intel.com \
    --cc=chaozhu@linux.vnet.ibm.com \
    --cc=dev@dpdk.org \
    --cc=gavin.hu@arm.com \
    --cc=jerin.jacob@caviumnetworks.com \
    --cc=konstantin.ananyev@intel.com \
    --cc=olivier.matz@6wind.com \
    --cc=stephen@networkplumber.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).