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GET /api/patches/56411/?format=api
{ "id": 56411, "url": "http://patchwork.dpdk.org/api/patches/56411/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/1562946877-50963-2-git-send-email-gavin.hu@arm.com/", "project": { "id": 1, "url": "http://patchwork.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": "<1562946877-50963-2-git-send-email-gavin.hu@arm.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1562946877-50963-2-git-send-email-gavin.hu@arm.com", "date": "2019-07-12T15:54:36", "name": "[v9,1/2] ring: add reset API to flush the ring when not in use", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "45e32eddb57efd5699c4c638007ac285ad161343", "submitter": { "id": 1018, "url": "http://patchwork.dpdk.org/api/people/1018/?format=api", "name": "Gavin Hu", "email": "gavin.hu@arm.com" }, "delegate": { "id": 1, "url": "http://patchwork.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/1562946877-50963-2-git-send-email-gavin.hu@arm.com/mbox/", "series": [ { "id": 5479, "url": "http://patchwork.dpdk.org/api/series/5479/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=5479", "date": "2019-07-12T15:54:35", "name": "new ring reset api and use it by hash", "version": 9, "mbox": "http://patchwork.dpdk.org/series/5479/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/56411/comments/", "check": "success", "checks": "http://patchwork.dpdk.org/api/patches/56411/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id CEAD11BE06;\n\tFri, 12 Jul 2019 17:54:58 +0200 (CEST)", "from foss.arm.com (foss.arm.com [217.140.110.172])\n\tby dpdk.org (Postfix) with ESMTP id 059E51BE00;\n\tFri, 12 Jul 2019 17:54:56 +0200 (CEST)", "from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14])\n\tby usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1C7FC344;\n\tFri, 12 Jul 2019 08:54:56 -0700 (PDT)", "from net-arm-thunderx2.shanghai.arm.com\n\t(net-arm-thunderx2.shanghai.arm.com [10.169.40.40])\n\tby usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id\n\tC78A73F246; Fri, 12 Jul 2019 08:54:53 -0700 (PDT)" ], "From": "Gavin Hu <gavin.hu@arm.com>", "To": "dev@dpdk.org", "Cc": "nd@arm.com, thomas@monjalon.net, jerinj@marvell.com,\n\themant.agrawal@nxp.com, nipun.gupta@nxp.com,\n\tHonnappa.Nagarahalli@arm.com, \n\tgavin.hu@arm.com, i.maximets@samsung.com, olivier.matz@6wind.com,\n\tstable@dpdk.org", "Date": "Fri, 12 Jul 2019 23:54:36 +0800", "Message-Id": "<1562946877-50963-2-git-send-email-gavin.hu@arm.com>", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": [ "<1562946877-50963-1-git-send-email-gavin.hu@arm.com>", "<20181212062404.30243-1-gavin.hu@arm.com>" ], "References": [ "<1562946877-50963-1-git-send-email-gavin.hu@arm.com>", "<20181212062404.30243-1-gavin.hu@arm.com>" ], "Subject": "[dpdk-dev] [PATCH v9 1/2] ring: add reset API to flush the ring\n\twhen not in use", "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\t<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\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Currently, the flush is done by dequeuing the ring in a while loop. It is\nmuch simpler to flush the queue by resetting the head and tail indices.\n\nFixes: af75078fece3 (\"first public release\")\nCc: stable@dpdk.org\n\nSigned-off-by: Gavin Hu <gavin.hu@arm.com>\nReviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>\nReviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>\n---\n lib/librte_ring/rte_ring.c | 7 +++++++\n lib/librte_ring/rte_ring.h | 17 +++++++++++++++++\n lib/librte_ring/rte_ring_version.map | 7 +++++++\n 3 files changed, 31 insertions(+)", "diff": "diff --git a/lib/librte_ring/rte_ring.c b/lib/librte_ring/rte_ring.c\nindex b30b2aa..d9b3080 100644\n--- a/lib/librte_ring/rte_ring.c\n+++ b/lib/librte_ring/rte_ring.c\n@@ -63,6 +63,13 @@ rte_ring_get_memsize(unsigned count)\n \treturn sz;\n }\n \n+void\n+rte_ring_reset(struct rte_ring *r)\n+{\n+\tr->prod.head = r->cons.head = 0;\n+\tr->prod.tail = r->cons.tail = 0;\n+}\n+\n int\n rte_ring_init(struct rte_ring *r, const char *name, unsigned count,\n \tunsigned flags)\ndiff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h\nindex e5a175c..2a9f768 100644\n--- a/lib/librte_ring/rte_ring.h\n+++ b/lib/librte_ring/rte_ring.h\n@@ -669,6 +669,23 @@ rte_ring_dequeue(struct rte_ring *r, void **obj_p)\n }\n \n /**\n+ * Flush a ring.\n+ *\n+ * This function flush all the elements in a ring\n+ *\n+ * @b EXPERIMENTAL: this API may change without prior notice\n+ *\n+ * @warning\n+ * Make sure the ring is not in use while calling this function.\n+ *\n+ * @param r\n+ * A pointer to the ring structure.\n+ */\n+__rte_experimental\n+void\n+rte_ring_reset(struct rte_ring *r);\n+\n+/**\n * Return the number of entries in a ring.\n *\n * @param r\ndiff --git a/lib/librte_ring/rte_ring_version.map b/lib/librte_ring/rte_ring_version.map\nindex d935efd..581d9ca 100644\n--- a/lib/librte_ring/rte_ring_version.map\n+++ b/lib/librte_ring/rte_ring_version.map\n@@ -17,3 +17,10 @@ DPDK_2.2 {\n \trte_ring_free;\n \n } DPDK_2.0;\n+\n+EXPERIMENTAL {\n+\tglobal:\n+\n+\trte_ring_reset;\n+\n+};\n", "prefixes": [ "v9", "1/2" ] }