[ECOS] tcpip network thread...!

Badri Sampathkumar badri@atheros.com
Thu Mar 10 08:29:00 GMT 2005


My Hello world thread has the function main() that gets called from
the libc main().

thanks,
/Badri
----- Original Message ----- 
From: "Gary Thomas" <gary@mlbassoc.com>
To: "Badri Sampathkumar" <badri@atheros.com>
Cc: "eCos Discussion" <ecos-discuss@ecos.sourceware.org>
Sent: Wednesday, March 09, 2005 2:22 PM
Subject: Re: [ECOS] tcpip network thread...!


> On Wed, 2005-03-09 at 13:54 -0800, Badri Sampathkumar wrote:
>> Hi:
>>
>> I have integrated an ethernet driver for my custom board. I run the Free 
>> bsd
>> tcpip
>> stack on it. I am able to succesfuly run the test programs and when the 
>> test
>> program (ping_lo_test) is running, I am able to ping the board from 
>> another
>> laptop. The board also initializes its IP thru DHCP when started up.
>>
>> The issue is the n/w interface and the ethernet driver are started only 
>> when
>> an appln program like ping_lo_test is run (this calls
>> init_all_network_interfaces). I want the network stack & the ethernet 
>> driver
>> to be up & running once any image that is linked with the library is 
>> loaded
>> on the board, like a simple hello program that does not use the 
>> networking
>> stack.
>> Once the BSP along with the drivers is loaded, I would like the board to
>> respond to ping. But this does'nt happen. I realized that the
>> eth_drv_start() is never called & so the h/w driver is not started too. 
>> So I
>> included a call to 'init_all_network_interfaces()' in the cyg_net_init()
>> function in the free-bsd code.
>>
>> This starts up the ethernet driver but still I am not getting interrupts
>> when an Appln like Hello program that is linked with this library is 
>> loaded.
>>
>> Is there any threading issues ..? I run the background network proc 
>> thread @
>> prio 7 and fast net proc thread @ prio 6 - the default values when 
>> free-bsd
>> is included.
>
> How do you start your "hello world" thread?
>
> Note: eCos does not normally start up the networking unless some
> thread does so explicitly.  That's just a design decision (which has
> worked just fine all these years...)
>
> -- 
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
>
>
> -- 
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> 


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