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GET /api/patches/1227493/?format=api
{ "id": 1227493, "url": "http://patchwork.ozlabs.org/api/patches/1227493/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20200122152041.41498-4-anthony.l.nguyen@intel.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20200122152041.41498-4-anthony.l.nguyen@intel.com>", "list_archive_url": null, "date": "2020-01-22T15:20:30", "name": "[S37,04/15] ice: Don't allow same value for Rx tail to be written twice", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "2c5ac02ef4bb2c83e8f48b39e853d1ce1e40e70f", "submitter": { "id": 68875, "url": "http://patchwork.ozlabs.org/api/people/68875/?format=api", "name": "Tony Nguyen", "email": "anthony.l.nguyen@intel.com" }, "delegate": { "id": 68, "url": "http://patchwork.ozlabs.org/api/users/68/?format=api", "username": "jtkirshe", "first_name": "Jeff", "last_name": "Kirsher", "email": "jeffrey.t.kirsher@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20200122152041.41498-4-anthony.l.nguyen@intel.com/mbox/", "series": [ { "id": 154776, "url": "http://patchwork.ozlabs.org/api/series/154776/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=154776", "date": "2020-01-22T15:20:30", "name": null, "version": 1, "mbox": "http://patchwork.ozlabs.org/series/154776/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1227493/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1227493/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "ozlabs.org; spf=pass (sender SPF authorized)\n\tsmtp.mailfrom=osuosl.org (client-ip=140.211.166.136;\n\thelo=silver.osuosl.org;\n\tenvelope-from=intel-wired-lan-bounces@osuosl.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=fail (p=none dis=none) header.from=intel.com" ], "Received": [ "from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 4832Kl2Jpfz9sRW\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 23 Jan 2020 10:53:30 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby silver.osuosl.org (Postfix) with ESMTP id E4F6C214E9;\n\tWed, 22 Jan 2020 23:53:28 +0000 (UTC)", "from silver.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id LI+sKXjF8q9n; Wed, 22 Jan 2020 23:53:27 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby silver.osuosl.org (Postfix) with ESMTP id 97D7220338;\n\tWed, 22 Jan 2020 23:53:27 +0000 (UTC)", "from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\tby ash.osuosl.org (Postfix) with ESMTP id 02BFC1BF977\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 22 Jan 2020 23:53:26 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id F3BA786469\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 22 Jan 2020 23:53:25 +0000 (UTC)", "from fraxinus.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id deMi7A-eSa3o for <intel-wired-lan@lists.osuosl.org>;\n\tWed, 22 Jan 2020 23:53:25 +0000 (UTC)", "from mga05.intel.com (mga05.intel.com [192.55.52.43])\n\tby fraxinus.osuosl.org (Postfix) with ESMTPS id 8B3BD864EA\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 22 Jan 2020 23:53:25 +0000 (UTC)", "from fmsmga008.fm.intel.com ([10.253.24.58])\n\tby fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t22 Jan 2020 15:53:24 -0800", "from unknown (HELO localhost.jf.intel.com) ([10.166.244.174])\n\tby fmsmga008.fm.intel.com with ESMTP; 22 Jan 2020 15:53:24 -0800" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.70,351,1574150400\"; d=\"scan'208\";a=\"222189281\"", "From": "Tony Nguyen <anthony.l.nguyen@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Wed, 22 Jan 2020 07:20:30 -0800", "Message-Id": "<20200122152041.41498-4-anthony.l.nguyen@intel.com>", "X-Mailer": "git-send-email 2.20.1", "In-Reply-To": "<20200122152041.41498-1-anthony.l.nguyen@intel.com>", "References": "<20200122152041.41498-1-anthony.l.nguyen@intel.com>", "MIME-Version": "1.0", "Subject": "[Intel-wired-lan] [PATCH S37 04/15] ice: Don't allow same value for\n\tRx tail to be written twice", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "From: Brett Creeley <brett.creeley@intel.com>\n\nCurrently we compare the value we are about to write to the Rx tail\nregister with the previous value of next_to_use. The problem with this\nis we only write tail on 8 descriptor boundaries, but next_to_use is\nupdated whenever we clean Rx descriptors. Fix this by comparing the\nvalue we are about to write to tail with the previously written tail\nvalue. This will prevent duplicate Rx tail bumps.\n\nSigned-off-by: Brett Creeley <brett.creeley@intel.com>\n---\n drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c\nindex 35bbc4ff603c..6da048a6ca7c 100644\n--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c\n+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c\n@@ -10,7 +10,7 @@\n */\n void ice_release_rx_desc(struct ice_ring *rx_ring, u32 val)\n {\n-\tu16 prev_ntu = rx_ring->next_to_use;\n+\tu16 prev_ntu = rx_ring->next_to_use & ~0x7;\n \n \trx_ring->next_to_use = val;\n \n", "prefixes": [ "S37", "04/15" ] }