{"id":809198,"url":"http://patchwork.ozlabs.org/api/patches/809198/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/patch/20170903042117.28923-15-saeedm@mellanox.com/","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/projects/7/?format=json","name":"Linux network development","link_name":"netdev","list_id":"netdev.vger.kernel.org","list_email":"netdev@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170903042117.28923-15-saeedm@mellanox.com>","list_archive_url":null,"date":"2017-09-03T04:21:14","name":"[net-next,14/17] net/mlx5e: Slightly increase RX page-cache size","commit_ref":null,"pull_url":null,"state":"accepted","archived":true,"hash":"0987b1f0ebc32cb885033f5c2a1d71b80b5e9760","submitter":{"id":65299,"url":"http://patchwork.ozlabs.org/api/people/65299/?format=json","name":"Saeed Mahameed","email":"saeedm@mellanox.com"},"delegate":{"id":34,"url":"http://patchwork.ozlabs.org/api/users/34/?format=json","username":"davem","first_name":"David","last_name":"Miller","email":"davem@davemloft.net"},"mbox":"http://patchwork.ozlabs.org/project/netdev/patch/20170903042117.28923-15-saeedm@mellanox.com/mbox/","series":[{"id":1196,"url":"http://patchwork.ozlabs.org/api/series/1196/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/list/?series=1196","date":"2017-09-03T04:21:09","name":"[net-next,01/17] net/mlx5e: Reorganize struct mlx5e_rq","version":1,"mbox":"http://patchwork.ozlabs.org/series/1196/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/809198/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/809198/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xlKZT1GpFz9sRY\n\tfor ;\n\tSun, 3 Sep 2017 14:22:25 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751577AbdICEWS (ORCPT );\n\tSun, 3 Sep 2017 00:22:18 -0400","from mail-il-dmz.mellanox.com ([193.47.165.129]:60156 \"EHLO\n\tmellanox.co.il\" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org\n\twith ESMTP id S1751196AbdICEWR (ORCPT\n\t); Sun, 3 Sep 2017 00:22:17 -0400","from Internal Mail-Server by MTLPINE1 (envelope-from\n\tsaeedm@mellanox.com)\n\twith ESMTPS (AES256-SHA encrypted); 3 Sep 2017 07:22:06 +0300","from sws.mtl.labs.mlnx (reg-l-vrt-045-015.mtl.labs.mlnx\n\t[10.135.45.15])\n\tby labmailer.mlnx (8.13.8/8.13.8) with ESMTP id v834M5lF017672;\n\tSun, 3 Sep 2017 07:22:06 +0300"],"From":"Saeed Mahameed ","To":"\"David S. Miller\" ","Cc":"netdev@vger.kernel.org, kernel-team@fb.com,\n\tTariq Toukan , Saeed Mahameed ","Subject":"[net-next 14/17] net/mlx5e: Slightly increase RX page-cache size","Date":"Sun, 3 Sep 2017 07:21:14 +0300","Message-Id":"<20170903042117.28923-15-saeedm@mellanox.com>","X-Mailer":"git-send-email 2.13.0","In-Reply-To":"<20170903042117.28923-1-saeedm@mellanox.com>","References":"<20170903042117.28923-1-saeedm@mellanox.com>","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"From: Tariq Toukan \n\nIn XDP_TX flow, we now get back quicker to each page in page-cache,\nand on some occasions refcount does not get back to 1 on time, causing\nsome costly page allocations.\nSlightly increase the size of RX page-cache to significantly decrease\nthe chances for this to happen.\n\nSigned-off-by: Tariq Toukan \nSigned-off-by: Saeed Mahameed \n---\n drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)","diff":"diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h\nindex e55d9439bc12..9c0c07ffe557 100644\n--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h\n+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h\n@@ -501,7 +501,7 @@ struct mlx5e_rx_am { /* Adaptive Moderation */\n */\n #define MLX5E_CACHE_UNIT\t(MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \\\n \t\t\t\t MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT)\n-#define MLX5E_CACHE_SIZE\t(2 * roundup_pow_of_two(MLX5E_CACHE_UNIT))\n+#define MLX5E_CACHE_SIZE\t(4 * roundup_pow_of_two(MLX5E_CACHE_UNIT))\n struct mlx5e_page_cache {\n \tu32 head;\n \tu32 tail;\n","prefixes":["net-next","14/17"]}