From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755320Ab3K2KrV (ORCPT ); Fri, 29 Nov 2013 05:47:21 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:48480 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752606Ab3K2KrP (ORCPT ); Fri, 29 Nov 2013 05:47:15 -0500 X-AuditID: cbfee690-b7f126d00000418c-6d-529870acac5a Date: Fri, 29 Nov 2013 10:47:08 +0000 (GMT) From: Rahul Jain Subject: [Issue] Bridge Info Details with and without sysfs To: "linux-kernel@vger.kernel.org" , "linux-net@vger.kernel.org" Cc: ASHWINI KUMAR Reply-to: rahul.jain@samsung.com MIME-version: 1.0 X-MTR: 20131129104423958@rahul.jain Msgkey: 20131129104423958@rahul.jain X-EPLocale: en_US.utf-8 X-Priority: 3 X-EPWebmail-Msg-Type: personal X-EPWebmail-Reply-Demand: 0 X-EPApproval-Locale: X-EPHeader: ML X-EPTrCode: X-EPTrName: X-MLAttribute: X-RootMTR: 20131129103203563@rahul.jain X-ParentMTR: 20131129103203563@rahul.jain X-ArchiveUser: X-CPGSPASS: N Content-type: text/plain; charset=utf-8 MIME-version: 1.0 Message-id: <20751226.176781385722028701.JavaMail.weblogic@epml26> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupmleLIzCtJLcpLzFFi42JZI2JSq7umYEaQwcYf5haXd81hc2D0+LxJ LoAxissmJTUnsyy1SN8ugSvjb+NqxoJ38hVtx46zNTA2yHcxcnIICahK7Fm6lBnElhAwkfj5 6ggLhC0mceHeerYuRi6gmqWMErvuzmSHKXp6fgkLRGI+o8SMgzeZQBIsQJOuzOhiBbHZBLQk Ht1uBYsLC1hLNO3dCdYsIlAjMf3iMbBtzALaEms3fGKGuEJBYvP972wgNq+AoMTJmU+grlCW uLkCxOYAiqtIfHhRDBEWl/jb8AjqHl6JGe1PocrlJKZ9XQP1jLTE+VkbGGGeWfz9MVScX+LY 7R1MICNBep/cD4YZs3vzFzYIW0Bi6pmDjBAlGhKHJztChLUkTqxuYIeZsuvUcmaY1vtb5jJB PKUoMaX7ITtIK7OApsT6XfrofuIVcJK4uuYyywRG5VlIUrOQdM9C6EZWsoCRZRWjaGpBckFx UnqRiV5xYm5xaV66XnJ+7iZGYEI4/e/ZhB2M9w5YH2JMBkbHRGYp0eR8YELJK4k3NDYzsjA1 MTU2Mrc0I01YSZxX7VFSkJBAemJJanZqakFqUXxRaU5q8SFGJg5OqQZGNg/+Rwf01jB5mh3u W5Jx5kHY/jeXNsm0/uOb/PQZj8jUx3HcX2fxXoxP5YqTO3w9uqb8i9OrhlcJaqZFcZfetHje bc1IFHltPa96wa5o9aBVonc39Ugce1vgwhkoWDH//z2JE7UqNx9X/Szi2aDRt4LrxYkNC34W ZDzcGVGVJW28/WKH9otaJZbijERDLeai4kQAU0g3/B4DAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrDKsWRmVeSWpSXmKPExsVy+t/t6bprCmYEGXzZo29xedccNgdGj8+b 5AIYo9JsMlITU1KLFFLzkvNTMvPSbZW8g+Od403NDAx1DS0tzJUU8hJzU22VXHwCdN0yc4CG KimUJeaUAoUCEouLlfTtbIryS0tSFTLyi0tslaINzY30jAz0TI30DE1jrQwNDIxMgWoS0jL+ Nq5mLHgnX9F27DhbA2ODfBcjJ4eQgKrEnqVLmUFsCQETiafnl7BA2GISF+6tZ+ti5AKqmc8o MePgTSaQBAtQw5UZXawgNpuAlsSj261gcWEBa4mmvTvZQWwRgRqJ6RePgQ1lFtCWWLvhEzPE MgWJzfe/s4HYvAKCEidnPoFapixxcwWIzQEUV5H48KIYIiwu8bfhETuEzSsxo/0pVLmcxLSv a6BulpY4P2sDI8zNi78/horzSxy7vYMJZCRI75P7wTBjdm/+wgZhC0hMPXOQEaJEQ+LwZEeI sJbEidUN7DBTdp1azgzTen/LXCaIpxQlpnQ/ZAdpZRbQlFi/Sx/dT7wCThJX11xmmcAoNwtJ ahaS7lkI3chKFjCyrGIUTS1ILihOSq8w0StOzC0uzUvXS87P3cQITkvPluxgbLhgfYhRgINR iYc3oHN6kBBrYllxZe4hRgkOZiUR3mm5M4KEeFMSK6tSi/Lji0pzUosPMSYDI28is5Rocj4w ZeaVxBsam5ibGptaGBiam5uRJqwkzrvgVlKQkEB6YklqdmpqQWoRzBYmDk6pBsZXu9afi5Gf e3TlSn32qXP8a9wiTOwvVGgsqJihWhC/WCl4jsylko8te+5rXjZ8ecPg4xzOz1L9FR67t7Dc d9lo33pwfvzv6sx3q/494L+8u9hj+3yZliWBa3Mjszap1vW6vN94/nPPy9vLJ3oKX9X2cxKz mLe06OW6fZ7/U+wnP0z4e0CpmjVZiaU4I9FQi7moOBEAMu62MY8DAAA= DLP-Filter: Pass X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id rATAlfEk032338 Hi list, While displaying bridge info using brctl command, different results are observed with and without sysfs mounted. Discrepancy Bridge info results for following fields max age bridge max age hello time bridge hello time forward delay bridge forward delay are different. Snapshot for both the cases With Sysfs mounted, ----------------------------------------------------------------------------------------------------------- brctl showstp virbr0 virbr0 bridge id 8000.002454fb6fd3 designated root 8000.002454fb6fd3 root port 0 path cost 0 max age 39.99 bridge max age 39.99 hello time 1.99 bridge hello time 1.99 forward delay 1999.69 bridge forward delay 1999.69 ageing time 299.95 hello timer 0.45 tcn timer 0.00 topology change timer 0.00 gc timer 1996.15 flags eth0.2 (0) port id 0000 state forwarding designated root 8000.002454fb6fd3 path cost 19 designated bridge 8000.002454fb6fd3 message age timer 0.00 designated port 8001 forward delay timer 0.00 designated cost 0 hold timer 0.00 flags eth0.3 (0) port id 0000 state forwarding designated root 8000.002454fb6fd3 path cost 19 designated bridge 8000.002454fb6fd3 message age timer 0.00 designated port 8002 forward delay timer 0.00 designated cost 0 hold timer 0.00 flags ----------------------------------------------------------------------------------------------------------- without sysfs (using ioctl), ----------------------------------------------------------------------------------------------------------- sudo umount /sys brctl showstp virbr0 virbr0 bridge id 8000.002454fb6fd3 designated root 8000.002454fb6fd3 root port 0 path cost 0 max age 39.99 bridge max age 400.00 hello time 1.99 bridge hello time 20.00 forward delay 20000.00 bridge forward delay 1999.69 ageing time 299.95 hello timer 0.10 tcn timer 0.00 topology change timer 0.00 gc timer 1967.80 flags eth0.2 (1) port id 8001 state forwarding designated root 8000.002454fb6fd3 path cost 19 designated bridge 8000.002454fb6fd3 message age timer 0.00 designated port 8001 forward delay timer 0.00 designated cost 0 hold timer 0.00 flags eth0.3 (2) port id 8002 state forwarding designated root 8000.002454fb6fd3 path cost 19 designated bridge 8000.002454fb6fd3 message age timer 0.00 designated port 8002 forward delay timer 0.00 designated cost 0 hold timer 0.00 flags ----------------------------------------------------------------------------------------------------------- This looks to be an issue with either sys interface implementation or ioctl (BRCTL_GET_BRIDGE_INFO) implementation for getting the info? Any inputs are welcome. Thanks -Rahul{.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I