Re: driver support for Chelsio T210 10Gb ethernet in 2.6.x

Re: driver support for Chelsio T210 10Gb ethernet in 2.6.x

[Jeff Garzik]

Felix Marti wrote:
> Jeff, as indicated by Chris, the driver that is in the kernel is for
> N110 and N210. So far, we have not received any customer complaints
> regarding bugs in the driver and thus it has not been updated in a long
> time. If you feel like there are some missing features/bug fixes, I'd be
> glad to spend some time on it.
> 
> However, Chris's initial request is regarding support for T210. As you
> indicate, the T210 product is a superset of N110/N210 and i.e. supports
> TOE. Since the T210 board features additional pieces of hardware, these
> must be initialized (i.e. memory controllers and TCAM) even if the board
> is to be used as a NIC only. If the kernel developers are okay with
> these additional initialization procedures we could update the driver to
> support N as well as T based products, in NIC mode only, of course ;)


I'd welcome support for NIC mode, so, sure...

	Jeff

Re: driver support for Chelsio T210 10Gb ethernet in 2.6.x

[Jeff Garzik]

Jeff Garzik wrote:
> Felix Marti wrote:
>> Jeff, as indicated by Chris, the driver that is in the kernel is for
>> N110 and N210. So far, we have not received any customer complaints
>> regarding bugs in the driver and thus it has not been updated in a long
>> time. If you feel like there are some missing features/bug fixes, I'd be
>> glad to spend some time on it.
>>
>> However, Chris's initial request is regarding support for T210. As you
>> indicate, the T210 product is a superset of N110/N210 and i.e. supports
>> TOE. Since the T210 board features additional pieces of hardware, these
>> must be initialized (i.e. memory controllers and TCAM) even if the board
>> is to be used as a NIC only. If the kernel developers are okay with
>> these additional initialization procedures we could update the driver to
>> support N as well as T based products, in NIC mode only, of course ;)
> 
> 
> I'd welcome support for NIC mode, so, sure...

Well, presuming that active maintenance comes along with it...

	Jeff

Re: driver support for Chelsio T210 10Gb ethernet in 2.6.x

[Jeff Garzik]

Chris Stromsoe wrote:
> The in-kernel Chelsio cxgb driver in 2.6.19-rc5 is version 2.1.1 and 
> only supports the N110 and N210 10Gb ethernet boards.  The current 
> driver available from Chelsio[1] is 2.1.4a and supports the T110 and 
> T210 series boards, but is only available against 2.6.16.  Any chance of 
> an update to the in-kernel driver for 2.6.20 to support the T* series 
> cards?
> 
> -Chris
> 
> 1. http://service.chelsio.com/drivers/linux/n210/cxgb-2.1.4a.tar.gz

A bit of history:  this driver was merged in March 2005 (submitted by 
Chelsio), updated once in June 2005, and then the maintainers completely 
disappeared.

So, you get what you get...  if someone wants to dig through the updated 
cxgb driver and merge it with the kernel and test it... great.  But at 
this point it is abandonware.

	Jeff