Date: Thu, 27 Feb 2003 10:13:16 -0300 From: "Daniel C. Sobral" <dcs@tcoip.com.br> To: Ruslan Ermilov <ru@FreeBSD.org> Cc: Bill Paul <wpaul@FreeBSD.org>, src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/fxp if_fxp.c if_fxpreg.h if_fxpvar.h Message-ID: <3E5E0EEC.9020203@tcoip.com.br> In-Reply-To: <20030227122441.GF39346@sunbay.com> References: <200302262212.h1QMC4L8017995@repoman.freebsd.org> <3E5DFD83.4070605@tcoip.com.br> <20030227122441.GF39346@sunbay.com>
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Ruslan Ermilov wrote:
> On Thu, Feb 27, 2003 at 08:58:59AM -0300, Daniel C. Sobral wrote:
>
>>Bill Paul wrote:
>>
>>>wpaul 2003/02/26 14:12:04 PST
>>>
>>> Modified files:
>>> sys/dev/fxp if_fxp.c if_fxpreg.h if_fxpvar.h
>>> Log:
>>> As previously threatened, add TCP/IP checksum offload support to
>>> the fxp driver. This is enabled only for the 82550/82551 chips
>>> (PCI revision code 12 or 13). RX and TX checksum offload are
>>> both supported. Transmit offload is limited to TCP and UDP only
>>> right now: there seems to be a problem with IP header checksumming
>>> on transmit in some cases.
>>
>>I'm curious. Is there any way of knowing whether support has been
>>detected and is in use? I did the pciconf trick you mentioned, but...
>><shrug>
>>
> ifconfig(8) will tell you:
>
> xl0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> options=3<RXCSUM,TXCSUM>
> ether 00:50:da:b4:10:5b
> media: Ethernet autoselect (none)
> status: no carrier
>
> "ifconfig -m" will tell you the list of supported capabilities.
>
>
>>Alas, when you say revision code 12 or 13... is that hex or decimal?
>>pciconf shows some of mine as being 0d.
>>
>
> 0d == 13. :-)
Unless Bill Paul meant 13 as being 0x13 == 19. He mentions pciconf,
which shows just "0d", and would show just "13" for 0x13, so I'm still
unsure. Well, I'll have a new kernel soon on my 5.x testbox, and check
this out. Thanks for the ifconfig reply.
--
Daniel C. Sobral (8-DCS)
Gerencia de Operacoes
Divisao de Comunicacao de Dados
Coordenacao de Seguranca
TCO
Fones: 55-61-313-7654/Cel: 55-61-9618-0904
E-mail: Daniel.Capo@tco.net.br
Daniel.Sobral@tcoip.com.br
dcs@tcoip.com.br
Outros:
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dcs@freebsd.org
capo@notorious.bsdconspiracy.net
To err is human, to moo bovine.
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