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GET /api/patches/1135835/?format=api
{ "id": 1135835, "url": "http://patchwork.ozlabs.org/api/patches/1135835/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20190723092454.3508-2-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": "<20190723092454.3508-2-anthony.l.nguyen@intel.com>", "list_archive_url": null, "date": "2019-07-23T09:24:42", "name": "[S23,v3,02/15] ice: Use the software based tail when checking for hung Tx ring", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "fabc89fd3bbd96270201e1dc02cfa52080c63886", "submitter": { "id": 68875, "url":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/20190723092454.3508-2-anthony.l.nguyen@intel.com/mbox/", "series": [ { "id": 121040, "url": "http://patchwork.ozlabs.org/api/series/121040/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=121040", "date": "2019-07-23T09:24:50", "name": "[S23,v3,01/15] ice: Implement ethtool ops for channels", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/121040/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1135835/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1135835/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;\n\tspf=pass (mailfrom) smtp.mailfrom=osuosl.org\n\t(client-ip=140.211.166.133; helo=hemlock.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 hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\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 45tR1Z57QTz9s7T\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 24 Jul 2019 03:54:10 +1000 (AEST)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 2117387158;\n\tTue, 23 Jul 2019 17:54:09 +0000 (UTC)", "from hemlock.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id peLgFfoAK+m0; Tue, 23 Jul 2019 17:54:08 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 3DE2F877E4;\n\tTue, 23 Jul 2019 17:54:08 +0000 (UTC)", "from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138])\n\tby ash.osuosl.org (Postfix) with ESMTP id B527A1BF97A\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 23 Jul 2019 17:54:02 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby whitealder.osuosl.org (Postfix) with ESMTP id B261781F23\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 23 Jul 2019 17:54:02 +0000 (UTC)", "from whitealder.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id 0MDER9gwKL2J for <intel-wired-lan@lists.osuosl.org>;\n\tTue, 23 Jul 2019 17:54:00 +0000 (UTC)", "from mga02.intel.com (mga02.intel.com [134.134.136.20])\n\tby whitealder.osuosl.org (Postfix) with ESMTPS id 9A4E181B89\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 23 Jul 2019 17:54:00 +0000 (UTC)", "from orsmga005.jf.intel.com ([10.7.209.41])\n\tby orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t23 Jul 2019 10:53:58 -0700", "from unknown (HELO localhost.jf.intel.com) ([10.166.244.174])\n\tby orsmga005.jf.intel.com with ESMTP; 23 Jul 2019 10:53:58 -0700" ], "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=\"5.64,299,1559545200\"; d=\"scan'208\";a=\"344813709\"", "From": "Tony Nguyen <anthony.l.nguyen@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Tue, 23 Jul 2019 02:24:42 -0700", "Message-Id": "<20190723092454.3508-2-anthony.l.nguyen@intel.com>", "X-Mailer": "git-send-email 2.20.1", "In-Reply-To": "<20190723092454.3508-1-anthony.l.nguyen@intel.com>", "References": "<20190723092454.3508-1-anthony.l.nguyen@intel.com>", "MIME-Version": "1.0", "Subject": "[Intel-wired-lan] [PATCH S23 v3 02/15] ice: Use the software based\n\ttail when checking for hung Tx ring", "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>", "Cc": "Brett Creeley <brett.creeley@intel.com>", "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 in ice_get_tx_pending we try to read a Tx ring's tail. This is\nthen compared with the software based head (next_to_clean) to determine\nif we have pending work. This will never work because reading of the Tx\nring's tail is no longer supported. Fix this by using the software based\ntail (next_to_use) to determine if there is pending work.\n\nSigned-off-by: Brett Creeley <brett.creeley@intel.com>\n---\n drivers/net/ethernet/intel/ice/ice_main.c | 6 +++---\n 1 file changed, 3 insertions(+), 3 deletions(-)", "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c\nindex 81c6db461df6..d75bfa832332 100644\n--- a/drivers/net/ethernet/intel/ice/ice_main.c\n+++ b/drivers/net/ethernet/intel/ice/ice_main.c\n@@ -41,12 +41,12 @@ static void ice_update_pf_stats(struct ice_pf *pf);\n * ice_get_tx_pending - returns number of Tx descriptors not processed\n * @ring: the ring of descriptors\n */\n-static u32 ice_get_tx_pending(struct ice_ring *ring)\n+static u16 ice_get_tx_pending(struct ice_ring *ring)\n {\n-\tu32 head, tail;\n+\tu16 head, tail;\n \n \thead = ring->next_to_clean;\n-\ttail = readl(ring->tail);\n+\ttail = ring->next_to_use;\n \n \tif (head != tail)\n \t\treturn (head < tail) ?\n", "prefixes": [ "S23", "v3", "02/15" ] }