Re: Netmap for routers (em0 device)

From: Archy Cho <archycho_at_gmail.com>
Date: Sat, 5 Nov 2011 04:33:58 +0800
With NETMAP patch
I know there has no errors for default.
source from info.iet.unipi.it/~luigi/*netmap*/
thank you.

2011/11/5 Archy Cho <archycho_at_gmail.com>

> With NETMAP patch
> I know there has no errors for default.
>
>
> 2011/11/5 Jack Vogel <jfvogel_at_gmail.com>
>
>> I looked at the if_em.c in a untouched 8.2 machine, there is no 'j' at
>> line 4012,
>> furthermore, hundreds of users of 8.2 have compiled the em driver without
>> errors,
>> the release would not have happened with a broken em compile, the GENERIC
>> kernel depends on it.
>>
>> .... SO, either the source is modified, or your environment is modified??
>>
>> Jack
>>
>>
>>
>> On Fri, Nov 4, 2011 at 12:47 PM, Archy Cho <archycho_at_gmail.com> wrote:
>>
>>> undefined 'j' appears on FreeBSD 8.2 release ( both i386 and amd64
>>> tested ),
>>> I could compile netmap to a 9.0-RC-1 box with disabling re/bge.
>>>
>>> 2011/11/5 Jack Vogel <jfvogel_at_gmail.com>
>>>
>>>> What version of the code is this, em certainly compiles in 8.2, and if
>>>> you mean
>>>> the code from HEAD or 9.0 I also don't see an undefined 'j'??
>>>>
>>>> Jack
>>>>
>>>>
>>>> On Fri, Nov 4, 2011 at 9:06 AM, Archy Cho <archycho_at_gmail.com> wrote:
>>>>
>>>>> Hello
>>>>>
>>>>> I am very happy to see freebsd could have such network performance with
>>>>> netmap ,
>>>>> since I am currently using freebsd as core routers instead of cisco.
>>>>>
>>>>> I tried to re-compile the freebsd 8.2 kernel to test ,
>>>>> however , I could not complete the task ( both i386 and amd64 ),
>>>>> I could only success at 9.0-RC-1.
>>>>>
>>>>> Here is my task and error message,
>>>>>
>>>>> cp /usr/src/sys/i386/conf/GENERIC /usr/src/sys/i386/conf/Netmap-Router
>>>>> echo "device netmap" >> /usr/src/sys/i386/conf/Netmap-Router
>>>>> cd /tmp/netmap/sys/
>>>>> cp -R * /usr/src/sys/
>>>>> cd /usr/src/
>>>>> patch -p < /tmp/netmap/head-netmap.diff
>>>>> echo "WITHOUT_MODULES = bge re igb" >> /etc/make.conf
>>>>> make buildkernel KERNCONF=Netmap-Router
>>>>> make installkernel KERNCONF=Netmap-Router
>>>>>
>>>>> -Werror  ../../../dev/e1000/if_em.c -I../../../dev/e1000
>>>>> ../../../dev/e1000/if_em.c: In function 'em_setup_receive_ring':
>>>>> ../../../dev/e1000/if_em.c:4012: error: 'j' undeclared (first use in
>>>>> this
>>>>> function)
>>>>> ../../../dev/e1000/if_em.c:4012: error: (Each undeclared identifier is
>>>>> reported only once
>>>>> ../../../dev/e1000/if_em.c:4012: error: for each function it appears
>>>>> in.)
>>>>> *** Error code 1
>>>>>
>>>>> Stop in /usr/src/sys/i386/compile/Netmap-Router
>>>>>
>>>>>
>>>>> Any hint of error message ?
>>>>>
>>>>> More questions ,
>>>>> I seldom facing DDOS , whatever using polling or not ,
>>>>> 1Gbps link with 64bytes packet will cause CPU 100% ,
>>>>> if a freebsd box compile with netmap ,
>>>>> could it have performance boost of routed / ipfw / pf ?
>>>>> _______________________________________________
>>>>> freebsd-current_at_freebsd.org mailing list
>>>>> http://lists.freebsd.org/mailman/listinfo/freebsd-current
>>>>> To unsubscribe, send any mail to "
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>>>>>
>>>>
>>>>
>>>
>>
>
Received on Fri Nov 04 2011 - 19:33:59 UTC

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