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Open Source and information security mailing list archives
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Date: Tue, 4 Dec 2018 10:10:32 +0000 From: Salil Mehta <salil.mehta@...wei.com> To: David Miller <davem@...emloft.net>, "jakub.kicinski@...ronome.com" <jakub.kicinski@...ronome.com> CC: "Zhuangyuzeng (Yisen)" <yisen.zhuang@...wei.com>, "lipeng (Y)" <lipeng321@...wei.com>, "mehta.salil@...src.net" <mehta.salil@...src.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Linuxarm <linuxarm@...wei.com>, Liuzhongzhu <liuzhongzhu@...wei.com>, "jiri@...nulli.us" <jiri@...nulli.us>, "f.fainelli@...il.com" <f.fainelli@...il.com> Subject: RE: [RFC net-next 3/9] net: hns3: Add "port vlan table" information query function > From: David Miller [mailto:davem@...emloft.net] > Sent: Monday, December 3, 2018 11:13 PM > To: jakub.kicinski@...ronome.com > Cc: Salil Mehta <salil.mehta@...wei.com>; Zhuangyuzeng (Yisen) > <yisen.zhuang@...wei.com>; lipeng (Y) <lipeng321@...wei.com>; > mehta.salil@...src.net; netdev@...r.kernel.org; linux- > kernel@...r.kernel.org; Linuxarm <linuxarm@...wei.com>; Liuzhongzhu > <liuzhongzhu@...wei.com>; jiri@...nulli.us; f.fainelli@...il.com > Subject: Re: [RFC net-next 3/9] net: hns3: Add "port vlan table" > information query function > > From: Jakub Kicinski <jakub.kicinski@...ronome.com> > Date: Mon, 3 Dec 2018 15:12:22 -0800 > > > On Sun, 2 Dec 2018 23:09:27 +0000, Salil Mehta wrote: > >> From: liuzhongzhu <liuzhongzhu@...wei.com> > >> > >> This patch prints port vlan table information. > >> > >> debugfs command: > >> echo dump port vlan tbl > cmd > >> > >> Sample Command: > >> root@(none)# echo dump port vlan tbl > cmd > >> vlan | port filter bitMap: > >> 0000 | 00000000:00000000:00000000:00000000:00000000:00000001 > >> root@(none)# > >> > >> Signed-off-by: liuzhongzhu <liuzhongzhu@...wei.com> > >> Signed-off-by: Salil Mehta <salil.mehta@...wei.com> > > > > Adding debugfs files for basic switch concepts like MAC and VLAN tables > > seems like a bit of a stretch to me. I wonder what others think. > > Agreed. I was wondering how other vendors are solving this? One way I could understand is to use "Switchdev" framework which in turn will expose entries to the kernel using the switch driver. In our NIC we don't have a proper switch and it cannot learn/age entries. Also, on-SoC NIC contains other tables which might not have any standard user-space interface at all. What are your suggestions regarding that? Thanks Salil
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