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GET /api/patches/16989/?format=api
{ "id": 16989, "url": "https://patches.dpdk.org/api/patches/16989/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1478779467-35123-1-git-send-email-skoteshwar@caviumnetworks.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": "<1478779467-35123-1-git-send-email-skoteshwar@caviumnetworks.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1478779467-35123-1-git-send-email-skoteshwar@caviumnetworks.com", "date": "2016-11-10T12:04:27", "name": "[dpdk-dev] i40e: Fix eth_i40e_dev_init sequence on ThunderX", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": true, "hash": "721dd8e70f12ad082a18373588ef64316247c2c8", "submitter": { "id": 602, "url": "https://patches.dpdk.org/api/people/602/?format=api", "name": "Satha Rao", "email": "skoteshwar@caviumnetworks.com" }, "delegate": { "id": 319, "url": "https://patches.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1478779467-35123-1-git-send-email-skoteshwar@caviumnetworks.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/16989/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/16989/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 [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id ED7E758DB;\n\tThu, 10 Nov 2016 13:05:44 +0100 (CET)", "from NAM02-BL2-obe.outbound.protection.outlook.com\n\t(mail-bl2nam02on0055.outbound.protection.outlook.com [104.47.38.55])\n\tby dpdk.org (Postfix) with ESMTP id 45D0C58DB\n\tfor <dev@dpdk.org>; Thu, 10 Nov 2016 13:05:42 +0100 (CET)", "from tns2.caveonetworks.com (50.233.148.156) by\n\tCY4PR07MB2838.namprd07.prod.outlook.com (10.169.252.16) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id\n\t15.1.707.6; Thu, 10 Nov 2016 12:05:39 +0000" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-cavium-com;\n\th=From:Date:Subject:Message-ID:Content-Type:MIME-Version;\n\tbh=q425xIvv+g13kNjeTUOaj7wKm49MsZqGmASryDRvPT0=;\n\tb=TwfgKNXmydhd73aUENSn9nhGrMrYX9Iu1ByYiYKHt/pWkMnZDocsjigVav78cZPjI1MCnbsSev4cLJ+0oUTloqLvinTzfmaPJmDI8BDYzMGaSPg69H1P4KuGw+ZgpR+rZe/h9vgfa5NntmM16LOxdFqgiuX2jI6j5J6Q75rpnqc=", "Authentication-Results": "spf=none (sender IP is )\n\tsmtp.mailfrom=Satha.Rao@cavium.com; ", "From": "Satha Rao <skoteshwar@caviumnetworks.com>", "To": "<helin.zhang@intel.com>", "CC": "<jingjing.wu@intel.com>, <jerin.jacob@caviumnetworks.com>,\n\t<jianbo.liu@linaro.org>, <dev@dpdk.org>, Satha Rao\n\t<skoteshwar@caviumnetworks.com>", "Date": "Thu, 10 Nov 2016 04:04:27 -0800", "Message-ID": "<1478779467-35123-1-git-send-email-skoteshwar@caviumnetworks.com>", "X-Mailer": "git-send-email 2.7.4", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-Originating-IP": "[50.233.148.156]", "X-ClientProxiedBy": "DM5PR10CA0017.namprd10.prod.outlook.com (10.172.33.27) To\n\tCY4PR07MB2838.namprd07.prod.outlook.com (10.169.252.16)", "X-Microsoft-Exchange-Diagnostics": [ "1; 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BCL:0; PCL:0; RULEID:(22001);\n\tSRVR:CY4PR07MB2838; ", "X-Microsoft-Antispam-PRVS": "<CY4PR07MB28383AA5C0DC90D848F86F5B8DB80@CY4PR07MB2838.namprd07.prod.outlook.com>", "X-Exchange-Antispam-Report-Test": "UriScan:;", "X-Exchange-Antispam-Report-CFA-Test": "BCL:0; PCL:0;\n\tRULEID:(6040176)(601004)(2401047)(5005006)(8121501046)(10201501046)(3002001);\n\tSRVR:CY4PR07MB2838; BCL:0; PCL:0; RULEID:; SRVR:CY4PR07MB2838; ", "X-Forefront-PRVS": "01221E3973", "X-Forefront-Antispam-Report": "SFV:NSPM;\n\tSFS:(10009020)(4630300001)(6009001)(7916002)(199003)(189002)(97736004)(77096005)(4001430100002)(92566002)(5003940100001)(189998001)(107886002)(47776003)(2351001)(66066001)(50466002)(48376002)(42186005)(53416004)(106356001)(36756003)(105586002)(69596002)(110136003)(3846002)(33646002)(6916009)(42882006)(6666003)(5660300001)(6116002)(7846002)(7736002)(305945005)(68736007)(101416001)(50226002)(4326007)(2906002)(50986999)(81166006)(586003)(81156014)(8676002)(15760500001);\n\tDIR:OUT; SFP:1101; SCL:1; SRVR:CY4PR07MB2838; H:tns2.caveonetworks.com;\n\tFPR:; \n\tSPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; ", "Received-SPF": "None (protection.outlook.com: cavium.com does not designate\n\tpermitted sender hosts)", "SpamDiagnosticOutput": "1:99", "SpamDiagnosticMetadata": "NSPM", "X-OriginatorOrg": "caviumnetworks.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "10 Nov 2016 12:05:39.2061\n\t(UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "CY4PR07MB2838", "Subject": "[dpdk-dev] [PATCH] i40e: Fix eth_i40e_dev_init sequence on ThunderX", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "i40e_asq_send_command: rd32 & wr32 under ThunderX gives unpredictable\n results. To solve this include rte memory barriers\n\nSigned-off-by: Satha Rao <skoteshwar@caviumnetworks.com>\n---\n drivers/net/i40e/base/i40e_adminq.c | 5 ++++-\n 1 file changed, 4 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/net/i40e/base/i40e_adminq.c b/drivers/net/i40e/base/i40e_adminq.c\nindex 0d3a83f..1038a95 100644\n--- a/drivers/net/i40e/base/i40e_adminq.c\n+++ b/drivers/net/i40e/base/i40e_adminq.c\n@@ -832,6 +832,7 @@ enum i40e_status_code i40e_asq_send_command(struct i40e_hw *hw,\n \t}\n \n \tval = rd32(hw, hw->aq.asq.head);\n+\trte_rmb();\n \tif (val >= hw->aq.num_asq_entries) {\n \t\ti40e_debug(hw, I40E_DEBUG_AQ_MESSAGE,\n \t\t\t \"AQTX: head overrun at %d\\n\", val);\n@@ -929,8 +930,10 @@ enum i40e_status_code i40e_asq_send_command(struct i40e_hw *hw,\n \t(hw->aq.asq.next_to_use)++;\n \tif (hw->aq.asq.next_to_use == hw->aq.asq.count)\n \t\thw->aq.asq.next_to_use = 0;\n-\tif (!details->postpone)\n+\tif (!details->postpone) {\n \t\twr32(hw, hw->aq.asq.tail, hw->aq.asq.next_to_use);\n+\t\trte_wmb();\n+\t}\n \n \t/* if cmd_details are not defined or async flag is not set,\n \t * we need to wait for desc write back\n", "prefixes": [ "dpdk-dev" ] }