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GET /api/patches/847156/?format=api
{ "id": 847156, "url": "http://patchwork.ozlabs.org/api/patches/847156/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20171211183649.21524.3888.stgit@localhost6.localdomain6/", "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": "<20171211183649.21524.3888.stgit@localhost6.localdomain6>", "list_archive_url": null, "date": "2017-12-11T18:36:49", "name": "[1/9] ixgbevf: add function for checking if we can reuse page", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "9aeec4ad3bbc097d7d6d306c547d933e911d41c2", "submitter": { "id": 1670, "url": "http://patchwork.ozlabs.org/api/people/1670/?format=api", "name": "Tantilov, Emil S", "email": "emil.s.tantilov@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/20171211183649.21524.3888.stgit@localhost6.localdomain6/mbox/", "series": [ { "id": 17925, "url": "http://patchwork.ozlabs.org/api/series/17925/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=17925", "date": "2017-12-11T18:36:44", "name": "ixgbevf: update Rx/Tx code path for build_skb", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/17925/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/847156/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/847156/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>)", "Received": [ "from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3ywWlv43pHz9s03\n\tfor <incoming@patchwork.ozlabs.org>;\n\tTue, 12 Dec 2017 05:32:43 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id B0293881D7;\n\tMon, 11 Dec 2017 18:32:41 +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 6EZy8i89MOQD; Mon, 11 Dec 2017 18:32:40 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 542E6881C8;\n\tMon, 11 Dec 2017 18:32:40 +0000 (UTC)", "from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\tby ash.osuosl.org (Postfix) with ESMTP id 875971BFA4B\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 11 Dec 2017 18:32:39 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 8400487268\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 11 Dec 2017 18:32:39 +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 DyCiqD8w5bwM for <intel-wired-lan@lists.osuosl.org>;\n\tMon, 11 Dec 2017 18:32:39 +0000 (UTC)", "from mga07.intel.com (mga07.intel.com [134.134.136.100])\n\tby fraxinus.osuosl.org (Postfix) with ESMTPS id E2CF087267\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 11 Dec 2017 18:32:38 +0000 (UTC)", "from orsmga002.jf.intel.com ([10.7.209.21])\n\tby orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t11 Dec 2017 10:32:38 -0800", "from estantil-desk3.jf.intel.com (HELO localhost6.localdomain6)\n\t([134.134.177.96])\n\tby orsmga002.jf.intel.com with ESMTP; 11 Dec 2017 10:32:37 -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=\"5.45,392,1508828400\"; d=\"scan'208\";a=\"17361589\"", "From": "Emil Tantilov <emil.s.tantilov@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Mon, 11 Dec 2017 10:36:49 -0800", "Message-ID": "<20171211183649.21524.3888.stgit@localhost6.localdomain6>", "In-Reply-To": "<20171211183537.21524.10133.stgit@localhost6.localdomain6>", "References": "<20171211183537.21524.10133.stgit@localhost6.localdomain6>", "User-Agent": "StGit/0.17.1-17-ge4e0", "MIME-Version": "1.0", "Subject": "[Intel-wired-lan] [PATCH 1/9] ixgbevf: add function for checking if\n\twe can reuse page", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.24", "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": "Introduce ixgbevf_can_reuse_page() similar to the change in ixgbe from\ncommit af43da0dba0b\n(\"ixgbe: Add function for checking to see if we can reuse page\")\n\nSigned-off-by: Emil Tantilov <emil.s.tantilov@intel.com>\n---\n drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 59 ++++++++++++---------\n 1 file changed, 33 insertions(+), 26 deletions(-)", "diff": "diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c\nindex ed5c3ae..7ffd429 100644\n--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c\n+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c\n@@ -754,6 +754,38 @@ static inline bool ixgbevf_page_is_reserved(struct page *page)\n \treturn (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page);\n }\n \n+static bool ixgbevf_can_reuse_rx_page(struct ixgbevf_rx_buffer *rx_buffer,\n+\t\t\t\t struct page *page,\n+\t\t\t\t const unsigned int truesize)\n+{\n+\t/* avoid re-using remote pages */\n+\tif (unlikely(ixgbevf_page_is_reserved(page)))\n+\t\treturn false;\n+\n+#if (PAGE_SIZE < 8192)\n+\t/* if we are only owner of page we can reuse it */\n+\tif (unlikely(page_count(page) != 1))\n+\t\treturn false;\n+\n+\t/* flip page offset to other buffer */\n+\trx_buffer->page_offset ^= IXGBEVF_RX_BUFSZ;\n+\n+#else\n+\t/* move offset up to the next cache line */\n+\trx_buffer->page_offset += truesize;\n+\n+\tif (rx_buffer->page_offset > (PAGE_SIZE - IXGBEVF_RX_BUFSZ))\n+\t\treturn false;\n+\n+#endif\n+\t/* Even if we own the page, we are not allowed to use atomic_set()\n+\t * This would break get_page_unless_zero() users.\n+\t */\n+\tpage_ref_inc(page);\n+\n+\treturn true;\n+}\n+\n /**\n * ixgbevf_add_rx_frag - Add contents of Rx buffer to sk_buff\n * @rx_ring: rx descriptor ring to transact packets on\n@@ -815,32 +847,7 @@ static bool ixgbevf_add_rx_frag(struct ixgbevf_ring *rx_ring,\n \tskb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,\n \t\t\t(unsigned long)va & ~PAGE_MASK, size, truesize);\n \n-\t/* avoid re-using remote pages */\n-\tif (unlikely(ixgbevf_page_is_reserved(page)))\n-\t\treturn false;\n-\n-#if (PAGE_SIZE < 8192)\n-\t/* if we are only owner of page we can reuse it */\n-\tif (unlikely(page_count(page) != 1))\n-\t\treturn false;\n-\n-\t/* flip page offset to other buffer */\n-\trx_buffer->page_offset ^= IXGBEVF_RX_BUFSZ;\n-\n-#else\n-\t/* move offset up to the next cache line */\n-\trx_buffer->page_offset += truesize;\n-\n-\tif (rx_buffer->page_offset > (PAGE_SIZE - IXGBEVF_RX_BUFSZ))\n-\t\treturn false;\n-\n-#endif\n-\t/* Even if we own the page, we are not allowed to use atomic_set()\n-\t * This would break get_page_unless_zero() users.\n-\t */\n-\tpage_ref_inc(page);\n-\n-\treturn true;\n+\treturn ixgbevf_can_reuse_rx_page(rx_buffer, page, truesize);\n }\n \n static struct sk_buff *ixgbevf_fetch_rx_buffer(struct ixgbevf_ring *rx_ring,\n", "prefixes": [ "1/9" ] }