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GET /api/patches/61871/?format=api
{ "id": 61871, "url": "http://patchwork.dpdk.org/api/patches/61871/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/1571913748-51735-5-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": "<1571913748-51735-5-git-send-email-gavin.hu@arm.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1571913748-51735-5-git-send-email-gavin.hu@arm.com", "date": "2019-10-24T10:42:27", "name": "[v9,4/5] net/thunderx: use new API to save cycles on aarch64", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "84c56a75687cf6fbf866e27df05b1ea313cd1a82", "submitter": { "id": 1018, "url": "http://patchwork.dpdk.org/api/people/1018/?format=api", "name": "Gavin Hu", "email": "gavin.hu@arm.com" }, "delegate": { "id": 24651, "url": "http://patchwork.dpdk.org/api/users/24651/?format=api", "username": "dmarchand", "first_name": "David", "last_name": "Marchand", "email": "david.marchand@redhat.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/1571913748-51735-5-git-send-email-gavin.hu@arm.com/mbox/", "series": [ { "id": 7037, "url": "http://patchwork.dpdk.org/api/series/7037/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=7037", "date": "2019-10-24T10:42:23", "name": "use WFE for aarch64", "version": 9, "mbox": "http://patchwork.dpdk.org/series/7037/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/61871/comments/", "check": "success", "checks": "http://patchwork.dpdk.org/api/patches/61871/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 812331E956;\n\tThu, 24 Oct 2019 12:43:08 +0200 (CEST)", "from foss.arm.com (unknown [217.140.110.172])\n\tby dpdk.org (Postfix) with ESMTP id B46871E937\n\tfor <dev@dpdk.org>; Thu, 24 Oct 2019 12:43:06 +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 655EE7A7;\n\tThu, 24 Oct 2019 03:42:58 -0700 (PDT)", "from net-arm-thunderx2-01.test.ast.arm.com\n\t(net-arm-thunderx2-01.shanghai.arm.com [10.169.40.40])\n\tby usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id\n\t1D2073F71F; Thu, 24 Oct 2019 03:42:54 -0700 (PDT)" ], "From": "Gavin Hu <gavin.hu@arm.com>", "To": "dev@dpdk.org", "Cc": "nd@arm.com, david.marchand@redhat.com, konstantin.ananyev@intel.com,\n\tthomas@monjalon.net, stephen@networkplumber.org, hemant.agrawal@nxp.com, \n\tjerinj@marvell.com, pbhagavatula@marvell.com,\n\tHonnappa.Nagarahalli@arm.com, \n\truifeng.wang@arm.com, phil.yang@arm.com, steve.capper@arm.com", "Date": "Thu, 24 Oct 2019 18:42:27 +0800", "Message-Id": "<1571913748-51735-5-git-send-email-gavin.hu@arm.com>", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": [ "<1571913748-51735-1-git-send-email-gavin.hu@arm.com>", "<1561911676-37718-1-git-send-email-gavin.hu@arm.com>" ], "References": [ "<1571913748-51735-1-git-send-email-gavin.hu@arm.com>", "<1561911676-37718-1-git-send-email-gavin.hu@arm.com>" ], "Subject": "[dpdk-dev] [PATCH v9 4/5] net/thunderx: use new API to save cycles\n\ton aarch64", "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": "Use the new API to wait in low power state instead of continuous\npolling to save CPU cycles and power.\n\nSigned-off-by: Gavin Hu <gavin.hu@arm.com>\nReviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>\nAcked-by: Jerin Jacob <jerinj@marvell.com>\n---\n drivers/net/thunderx/Makefile | 1 +\n drivers/net/thunderx/meson.build | 1 +\n drivers/net/thunderx/nicvf_rxtx.c | 3 +--\n 3 files changed, 3 insertions(+), 2 deletions(-)", "diff": "diff --git a/drivers/net/thunderx/Makefile b/drivers/net/thunderx/Makefile\nindex e6bf497..9e0de10 100644\n--- a/drivers/net/thunderx/Makefile\n+++ b/drivers/net/thunderx/Makefile\n@@ -10,6 +10,7 @@ include $(RTE_SDK)/mk/rte.vars.mk\n LIB = librte_pmd_thunderx_nicvf.a\n \n CFLAGS += $(WERROR_FLAGS)\n+CFLAGS += -DALLOW_EXPERIMENTAL_API\n \n LDLIBS += -lm\n LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring\ndiff --git a/drivers/net/thunderx/meson.build b/drivers/net/thunderx/meson.build\nindex 69819a9..23d9458 100644\n--- a/drivers/net/thunderx/meson.build\n+++ b/drivers/net/thunderx/meson.build\n@@ -4,6 +4,7 @@\n subdir('base')\n objs = [base_objs]\n \n+allow_experimental_apis = true\n sources = files('nicvf_rxtx.c',\n \t\t'nicvf_ethdev.c',\n \t\t'nicvf_svf.c'\ndiff --git a/drivers/net/thunderx/nicvf_rxtx.c b/drivers/net/thunderx/nicvf_rxtx.c\nindex 1c42874..90a6098 100644\n--- a/drivers/net/thunderx/nicvf_rxtx.c\n+++ b/drivers/net/thunderx/nicvf_rxtx.c\n@@ -385,8 +385,7 @@ nicvf_fill_rbdr(struct nicvf_rxq *rxq, int to_fill)\n \t\tltail++;\n \t}\n \n-\twhile (__atomic_load_n(&rbdr->tail, __ATOMIC_RELAXED) != next_tail)\n-\t\trte_pause();\n+\trte_wait_until_equal_32(&rbdr->tail, next_tail, __ATOMIC_RELAXED);\n \n \t__atomic_store_n(&rbdr->tail, ltail, __ATOMIC_RELEASE);\n \tnicvf_addr_write(door, to_fill);\n", "prefixes": [ "v9", "4/5" ] }