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GET /api/patches/73354/?format=api
https://patches.dpdk.org/api/patches/73354/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20200706234333.26310-2-honnappa.nagarahalli@arm.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20200706234333.26310-2-honnappa.nagarahalli@arm.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20200706234333.26310-2-honnappa.nagarahalli@arm.com", "date": "2020-07-06T23:43:32", "name": "[v4,2/3] doc: update armv8-a IO barrier changes", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "cee0c0b65169fe77a2b99771768812cf786a1680", "submitter": { "id": 1045, "url": "https://patches.dpdk.org/api/people/1045/?format=api", "name": "Honnappa Nagarahalli", "email": "honnappa.nagarahalli@arm.com" }, "delegate": { "id": 24651, "url": "https://patches.dpdk.org/api/users/24651/?format=api", "username": "dmarchand", "first_name": "David", "last_name": "Marchand", "email": "david.marchand@redhat.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20200706234333.26310-2-honnappa.nagarahalli@arm.com/mbox/", "series": [ { "id": 10828, "url": "https://patches.dpdk.org/api/series/10828/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=10828", "date": "2020-07-06T23:43:31", "name": "[v4,1/3] eal: adjust barriers for IO on Armv8-a", "version": 4, "mbox": "https://patches.dpdk.org/series/10828/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/73354/comments/", "check": "fail", "checks": "https://patches.dpdk.org/api/patches/73354/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 98AAAA00C5;\n\tTue, 7 Jul 2020 01:43:57 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 962961DC8B;\n\tTue, 7 Jul 2020 01:43:55 +0200 (CEST)", "from foss.arm.com (foss.arm.com [217.140.110.172])\n by dpdk.org (Postfix) with ESMTP id 9D0E91DC8A\n for <dev@dpdk.org>; Tue, 7 Jul 2020 01:43:54 +0200 (CEST)", "from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14])\n by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2D93AC0A;\n Mon, 6 Jul 2020 16:43:54 -0700 (PDT)", "from qc2400f-1.austin.arm.com (qc2400f-1.austin.arm.com\n [10.118.12.27])\n by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2518A3F718;\n Mon, 6 Jul 2020 16:43:54 -0700 (PDT)" ], "From": "Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>", "To": "dev@dpdk.org, honnappa.nagarahalli@arm.com, ruifeng.wang@arm.com,\n jerinj@marvell.com, hemant.agrawal@nxp.com, ajit.khaparde@broadcom.com,\n igorch@amazon.com, thomas@monjalon.net, viacheslavo@mellanox.com,\n arybchenko@solarflare.com, bruce.richardson@intel.com", "Cc": "nd@arm.com", "Date": "Mon, 6 Jul 2020 18:43:32 -0500", "Message-Id": "<20200706234333.26310-2-honnappa.nagarahalli@arm.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20200706234333.26310-1-honnappa.nagarahalli@arm.com>", "References": "<20200410164127.54229-1-gavin.hu@arm.com>\n <20200706234333.26310-1-honnappa.nagarahalli@arm.com>", "Subject": "[dpdk-dev] [PATCH v4 2/3] doc: update armv8-a IO barrier changes", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Updated the use of DMB instruction in rte_*mb APIs for Armv8-a.\n\nSigned-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>\nAcked-by: Jerin Jacob <jerinj@marvell.com>\n---\n doc/guides/rel_notes/release_20_08.rst | 7 +++++++\n 1 file changed, 7 insertions(+)", "diff": "diff --git a/doc/guides/rel_notes/release_20_08.rst b/doc/guides/rel_notes/release_20_08.rst\nindex 5cbc4ce14..567ae6b2a 100644\n--- a/doc/guides/rel_notes/release_20_08.rst\n+++ b/doc/guides/rel_notes/release_20_08.rst\n@@ -56,6 +56,13 @@ New Features\n Also, make sure to start the actual text at the margin.\n =========================================================\n \n+* **rte_*mb APIs are updated to use DMB instruction for Armv8-a.**\n+\n+ Armv8-a memory model has been strengthened to require other-multi-copy\n+ atomicity. This allows for using DMB instruction instead of DSB for IO\n+ barriers. rte_*mb APIs, for Armv8-a platforms, are changed to use DMB\n+ instruction to reflect this.\n+\n * **Updated PCAP driver.**\n \n Updated PCAP driver with new features and improvements, including:\n", "prefixes": [ "v4", "2/3" ] }{ "id": 73354, "url": "