From: Jerin Jacob <jerinjacobk@gmail.com>
To: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Cc: dpdk-dev <dev@dpdk.org>,
"Ruifeng Wang (Arm Technology China)" <ruifeng.wang@arm.com>,
Jerin Jacob <jerinj@marvell.com>,
Hemant Agrawal <hemant.agrawal@nxp.com>,
Ajit Khaparde <ajit.khaparde@broadcom.com>,
Igor Chauskin <igorch@amazon.com>,
Thomas Monjalon <thomas@monjalon.net>,
Slava Ovsiienko <viacheslavo@mellanox.com>,
Andrew Rybchenko <arybchenko@solarflare.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v3 2/3] doc: update armv8-a IO barrier changes
Date: Sun, 5 Jul 2020 06:27:05 +0530 [thread overview]
Message-ID: <CALBAE1PhhZ5RUpLJXhASDLuWuSBUPBRCzHj-zrhHVkM0ePui5Q@mail.gmail.com> (raw)
In-Reply-To: <20200703185741.22184-2-honnappa.nagarahalli@arm.com>
On Sat, Jul 4, 2020 at 12:28 AM Honnappa Nagarahalli
<honnappa.nagarahalli@arm.com> wrote:
>
> Updated the use of DMB instruction in rte_*mb APIs for Armv8-a.
>
> Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> ---
> doc/guides/rel_notes/release_20_08.rst | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/doc/guides/rel_notes/release_20_08.rst b/doc/guides/rel_notes/release_20_08.rst
> index 5cbc4ce14..15c21996d 100644
> --- a/doc/guides/rel_notes/release_20_08.rst
> +++ b/doc/guides/rel_notes/release_20_08.rst
> @@ -56,6 +56,13 @@ New Features
> Also, make sure to start the actual text at the margin.
> =========================================================
>
> +* **rte_*mb APIs are updated to use DMB instruction.**
IMO, It is better to change to following as the end user can ignore
parsing the description if not interested in arm64.
rte_*mb APIs are updated to use DMB instruction for Armv8-a
With above change:
Acked-by: Jerin Jacob <jerinj@marvell.com>
> +
> + Armv8-a memory model has been strengthened to require other-multi-copy
> + atomicity. This allows for using DMB instruction instead of DSB for IO
> + barriers. rte_*mb APIs, for Armv8-a platforms, are changed to use DMB
> + instruction to reflect this.
> +
> * **Updated PCAP driver.**
>
> Updated PCAP driver with new features and improvements, including:
> --
> 2.17.1
>
next prev parent reply other threads:[~2020-07-05 0:57 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 12:38 [dpdk-dev] [PATCH RFC v1 0/6] barrier fix and optimization for mlx5 on aarch64 Gavin Hu
2020-02-13 12:38 ` [dpdk-dev] [PATCH RFC v1 1/6] net/mlx5: relax the barrier for UAR write Gavin Hu
2020-02-13 12:38 ` [dpdk-dev] [PATCH RFC v1 2/6] net/mlx5: use cio barrier before the BF WQE Gavin Hu
2020-02-13 12:38 ` [dpdk-dev] [PATCH RFC v1 3/6] net/mlx5: add missing barrier Gavin Hu
2020-02-13 12:38 ` [dpdk-dev] [PATCH RFC v1 4/6] net/mlx5: add descriptive comment for a barrier Gavin Hu
2020-02-13 12:38 ` [dpdk-dev] [PATCH RFC v1 5/6] net/mlx5: non-cacheable mapping defaulted for aarch64 Gavin Hu
2020-02-13 12:38 ` [dpdk-dev] [PATCH RFC v1 6/6] net/mlx5: relaxed ordering for multi-packet RQ buffer refcnt Gavin Hu
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 0/7] introduce new barrier class and use it for mlx5 PMD Gavin Hu
2020-04-10 17:20 ` Andrew Rybchenko
2020-04-11 3:46 ` Gavin Hu
2020-04-13 9:51 ` Andrew Rybchenko
2020-04-13 16:46 ` Gavin Hu
2020-05-11 18:06 ` [dpdk-dev] [RFC] eal: adjust barriers for IO on Armv8-a Honnappa Nagarahalli
2020-05-12 6:18 ` Ruifeng Wang
2020-05-12 6:42 ` Jerin Jacob
2020-05-12 8:02 ` Ruifeng Wang
2020-05-12 8:28 ` Jerin Jacob
2020-05-12 21:44 ` Honnappa Nagarahalli
2020-05-13 14:49 ` Jerin Jacob
2020-05-14 1:02 ` Honnappa Nagarahalli
2020-06-27 19:12 ` [dpdk-dev] [PATCH v2] " Honnappa Nagarahalli
2020-06-27 19:25 ` Honnappa Nagarahalli
2020-06-30 5:13 ` Jerin Jacob
2020-07-03 18:57 ` [dpdk-dev] [PATCH v3 1/3] " Honnappa Nagarahalli
2020-07-03 18:57 ` [dpdk-dev] [PATCH v3 2/3] doc: update armv8-a IO barrier changes Honnappa Nagarahalli
2020-07-05 0:57 ` Jerin Jacob [this message]
2020-07-03 18:57 ` [dpdk-dev] [PATCH v3 3/3] doc: update deprecation of CIO barrier APIs Honnappa Nagarahalli
2020-07-05 0:57 ` Jerin Jacob
2020-07-07 20:19 ` Ajit Khaparde
2020-07-08 11:05 ` Ananyev, Konstantin
2020-07-06 23:43 ` [dpdk-dev] [PATCH v4 1/3] eal: adjust barriers for IO on Armv8-a Honnappa Nagarahalli
2020-07-06 23:43 ` [dpdk-dev] [PATCH v4 2/3] doc: update armv8-a IO barrier changes Honnappa Nagarahalli
2020-07-07 8:36 ` David Marchand
2020-07-07 18:37 ` Honnappa Nagarahalli
2020-07-06 23:43 ` [dpdk-dev] [PATCH v4 3/3] doc: update deprecation of CIO barrier APIs Honnappa Nagarahalli
2020-07-07 8:39 ` David Marchand
2020-07-07 20:14 ` David Christensen
2020-07-08 11:49 ` David Marchand
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 1/7] eal: introduce new class of barriers for DMA use cases Gavin Hu
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 2/7] net/mlx5: dmb for immediate doorbell ring on aarch64 Gavin Hu
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 3/7] net/mlx5: relax barrier to order UAR writes " Gavin Hu
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 4/7] net/mlx5: relax barrier for aarch64 Gavin Hu
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 5/7] net/mlx5: add descriptive comment for a barrier Gavin Hu
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 6/7] net/mlx5: relax ordering for multi-packet RQ buffer refcnt Gavin Hu
2020-06-23 8:26 ` [dpdk-dev] [PATCH v3] net/mlx5: relaxed " Phil Yang
2020-07-13 3:02 ` Phil Yang
2020-07-20 23:21 ` Alexander Kozyrev
2020-07-21 1:55 ` Phil Yang
2020-07-21 3:58 ` Alexander Kozyrev
2020-07-21 4:03 ` Honnappa Nagarahalli
2020-07-21 4:11 ` Alexander Kozyrev
2020-07-22 12:06 ` Phil Yang
2020-07-23 4:47 ` Honnappa Nagarahalli
2020-07-23 6:11 ` Phil Yang
2020-07-23 16:53 ` Alexander Kozyrev
2020-07-27 14:52 ` Phil Yang
2020-08-06 2:43 ` Alexander Kozyrev
2020-08-11 5:20 ` Honnappa Nagarahalli
2020-09-02 21:52 ` Alexander Kozyrev
2020-09-03 2:55 ` Phil Yang
2020-09-09 13:29 ` Alexander Kozyrev
2020-09-10 1:34 ` Honnappa Nagarahalli
2020-09-03 2:53 ` [dpdk-dev] [PATCH v4] " Phil Yang
2020-09-10 1:30 ` Honnappa Nagarahalli
2020-09-10 1:36 ` Alexander Kozyrev
2020-09-29 15:22 ` Phil Yang
2020-09-30 12:44 ` Slava Ovsiienko
2020-09-30 12:52 ` Raslan Darawsheh
2020-09-30 13:57 ` Raslan Darawsheh
2020-04-10 16:41 ` [dpdk-dev] [PATCH RFC v2 7/7] doc: clarify one configuration in mlx5 guide Gavin Hu
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