[lkml]   [2001]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] Proper perfect filter setup for xircom_tulip_cb.c
On Tue, 5 Jun 2001 22:34:05 -0700 (PDT), 
Ion Badulescu <> wrote:
>The reason some CardBus Xircom cards need to be put in promisc mode in
>order to receive packets is because the driver doesn't initialize the
>perfect filter correctly. Although it uses a single Tx descriptor to send
>the initialization data to the card, it doesn't set either of the
>first_segment or last_segment bits in the descriptor. No wonder the
>chipset gets confused...

Nicely spotted. The X3201-3 Software Specification says nothing about
the segment bits for the filter, instead the information is tucked away
in the 21143 PCI/CardBus 10/100Mb/s Ethernet LAN Controller Hardware
Reference Manual. So Xircom have a software specification manual that
does not include the full software spec, oh the horrors.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:54    [W:0.037 / U:0.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site