Re: [ECOS] link loss/detection at runtime

[Will Wagner <will_wagner@carallon.com>]

Thanks Steve.

Thats exactly where I had just got to, can't see a better way of doing it.

Could you give an example of what's in your pfn_proc_link_status. I am 
assuming I can copy code snippets out of the dhcp code to work out how 
to bring the interface up and down.

Cheers,

Will

Steve Strublic wrote:
> 
> 
> 
> We had a similar issue at my company.  We ended up hooking FEC_ETH_PHY_INT, writing an ISR/DSR
> combination, and running a thread to allow calls to phy_read().  In the thread, we read the contents
> of the link status register when notified by the DSR that the status has changed.  This also allowed
> us to have multiple notifiers execute upon link status change.
> 
> Something like:
> 
> phy_ok = phy_read(PHY_BMSR2, FEC_ETH_PHY, &mii_reg17);
> 
> if (mii_reg17 & PHY_BMSR2_LINK)
>       link_up_status=true;
> else
>       link_up_status=false;
> 
> (pfn_proc_link_status)(link_up_status) ;
> 
> There may be (probably is) an easier solution, but this one worked for us.
> 
> HTH,
> 
> Steve
> 
> --------
> 
> "A chicken doesn't stop scratching just because the worms are scarce." - Grandma Soderquist's
> Conclusion
> 
> 
> 
>                                                                                                     
>              will_wagner@carallon.com                                                               
>              Sent by:                                                                               
>              ecos-discuss-owner@ecos.sou                                                         To 
>              rceware.org                         ecos-discuss@ecos.sourceware.org                   
>                                                                                                  cc 
>                                                                                                     
>              07/26/2005 05:07 AM                                                            Subject 
>                                                  [ECOS] link loss/detection at runtime              
>                                                                                                     
>                                                                                                     
>                                                                                                     
>                                                                                                     
>                                                                                                     
>                                                                                                     
> 
> 
> 
> 
> Hi All,
> 
> Are there any examples of ethernet drivers that cope with link
> loss/detection after the drivers have been initialised? I am using an
> MPC860 with AMD PHY. I have hunted through the source but can't find any
> examples of this.
> 
> If not can anyone point me to what needs to be done in the bsd stack to
> bring an interface up/down following a change in link status.
> 
> Thanks,
> 
> Will
> 
> 
> --
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> 
> 
> 
> 


-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss