Re: how to set vlan filter for intel 82599

[zhou rui <zhourui.cn@gmail.com>]

On Tue, Apr 26, 2011 at 11:51 AM, Ben Hutchings
<bhutchings@solarflare.com> wrote:
> On Tue, 2011-04-26 at 11:39 +0800, zhou rui wrote:
>> On Tue, Apr 26, 2011 at 10:57 AM, Ben Hutchings
>> <bhutchings@solarflare.com> wrote:
>> > On Tue, 2011-04-26 at 10:19 +0800, zhou rui wrote:
>> >> hi
>> >> here is the problem troubles me,how to set vlan filter for intel
>> >> 82599? for example
>> >> I want vlan id 0~31 will go to queue 0, vlan id 32-63 will go to queue
>> >> 1...below is my setting,but doesn't work
>> >>
>> >> don't know the exact meanning of the vlan-mask and vlan,how are they calculated?
>> >>
>> >> ./ethtool -K eth5 ntuple on
>> >>
>> >> ./ethtool -U eth5 flow-type udp4 src-ip 0x0 src-ip-mask 0x0 dst-ip 0x0
>> >> dst-ip-mask 0x0 src-port 0x0 src-port-mask 0x0 dst-port 0x0
>> >> dst-port-mask 0x0 vlan 0x0000 vlan-mask 0x00E0 user-def 0x0
>> >> user-def-mask 0x0 action 0
>> > [...]
>> >
>> > This specifies a filter for UDP/IPv4 packets, and the masks are wrong.
>> > If you actually wanted to filter only UDP/IPv4 packets for VID 0-31 then
>> > the correct syntax would be:
>> >
>> >    ethtool -U eth5 flow-type udp4 vlan 0 vlan-mask 0xf01f
>> >
>> > If you don't care about the layer 3/4 protocols then you would need to
>> > use 'flow-type ether', but no driver implements that yet.  (Well, sfc
>> > implements the *type*, but not filtering by VID only.)
> [...]
>> hi ben,thanks for your help,would you mind tell me "32~63" VID filter?
>> still can not understand the vlan-mask
>
> The vlan-mask specifies tag bits to be ignored.  You want to ignore the
> priority, CFI and lower 5 bits of the VID, hence 0xf01f.  For a
> different group of 32 VIDs you would only change the vlan argument, not
> the vlan-mask argument.
>
> Ben.
>
> --
> Ben Hutchings, Senior Software Engineer, Solarflare
> Not speaking for my employer; that's the marketing department's job.
> They asked us to note that Solarflare product names are trademarked.
>
>
i set the filter like below:

for a vlanid=50, it always match the last rule (action 7)

./ethtool -K eth5 ntuple off
./ethtool -K eth5 ntuple on
./ethtool -U eth5 flow-type tcp4 vlan 32 vlan-mask 0xF01F action 1
./ethtool -U eth5 flow-type udp4 vlan 32 vlan-mask 0xF01F action 1
./ethtool -U eth5 flow-type udp4 vlan 64 vlan-mask 0xF01F action 7
./ethtool -U eth5 flow-type tcp4 vlan 64 vlan-mask 0xF01F action 7

I tried the latest ixgbe driver 3.3.9, it reports:

Cannot add new RX n-tuple filter: Operation not permitted

./ethtool -V
ethtool version 2.6.36

thanks!