Date: Sun, 16 Nov 2008 17:57:09 +0200 From: "Yony Yossef" <yonyossef.lists@gmail.com> To: "Max Laier" <max@love2party.net> Cc: freebsd-hackers@freebsd.org, Yehonatan Yossef <yoniy@mellanox.co.il>, liranl@mellanox.co.il Subject: Re: VLAN offloads on FreeBSD 6.3 & 7.0 Message-ID: <20def4870811160757v76bec46bt5cb134388b7d733f@mail.gmail.com> In-Reply-To: <200811161608.51813.max@love2party.net> References: <20def4870811160610l5289267erfd7abafb9916b706@mail.gmail.com> <200811161608.51813.max@love2party.net>
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Thanks! it looks like a solution. On Sun, Nov 16, 2008 at 5:08 PM, Max Laier <max@love2party.net> wrote: > On Sunday 16 November 2008 15:10:19 Yony Yossef wrote: >> Hi All, >> >> I'm working on an Ethernet driver for FreeBSD, currently implementing >> VLAN offloads. >> I have two problems, one is enabling TSO over the VLAN interface and >> the second is enabling the VLAN filtering offload. >> >> About the TSO problem, I'm currently suffering a hugh performance >> penalty since I have no TSO enabled over my vlan interfaces. >> When I create a VLAN interface it does not inherit the features of >> it's mother-interface, e.g. IFCAP_TSO. >> Can it be done on FreeBSD 6.3 / 7.0 ? >> >> Second, my NIC is capable of holding a vlan table on HW, filtering >> vlans on it's own, now I need to find a way to update that HW table >> with added/deleted VLANs in order to use that VLAN filtering offload. >> One way is to recieve a ioctl from the OS of it's vlan table events >> (add, remove). I can't find such ioctl. >> >> Second way is to have direct access from the driver to the OS vlan >> table. I'm not familiar with the interface though (something parallel >> to vlan_group_get_device on linux) or if it's possible at all, can >> anyone help on this one? > > See http://svn.freebsd.org/viewvc/base?view=revision&revision=180510 for the > VLAN tag issue. Simply EVENTHANDLER_REGISTER a function in your driver to > update the hw-table on config/unconfig events. I hope this helps. > > -- > /"\ Best regards, | mlaier@freebsd.org > \ / Max Laier | ICQ #67774661 > X http://pf4freebsd.love2party.net/ | mlaier@EFnet > / \ ASCII Ribbon Campaign | Against HTML Mail and News >
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