D-Link DFE-690TXD

Hi,

I happen to own a D-Link DFE-690TXD cardbus network adapter for my
laptop. After reading the comments if_rl.c, I regret to have bought it
this "redefinition of low end" :-)


With 5.2.1-RELEASE and this card, if_rl hangs in rl_probe() at
    hwrev = CSR_READ_4(sc, RL_TXCFG) & RL_TXCFG_HWREV;

I saw quite some modifications in current for if_rl, so I upgraded last
night to current. The good news is that the card now just works:

 > rl0: <D-Link DFE-690TXD 10/100BaseTX> port 0x1100-0x11ff mem 
0x88000000-0x880001ff irq 10 at device 0.0 on cardbus0
 > miibus1: <MII bus> on rl0
 > rlphy0: <RealTek internal media interface> on miibus1
 > rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
 > rl0: Ethernet address: 00:0d:88:2c:a3:f7
 > rl0: [GIANT-LOCKED]

Running ttcp over this card showed about 8.5MB/s at the expense of quite
some CPU cycles. However, while doing this, I noticed these messages

 > rl0: discard oversize frame (ether type 800 flags 3 len 21569 > max 1514)
 > rl0: discard oversize frame (ether type 8001 flags 3 len 4520 > max 1514)
 > rl0: discard oversize frame (ether type ef27 flags 3 len 32684 > max 
1514)
 > rl0: discard oversize frame (ether type 2f1a flags 3 len 49420 > max 
1514)

So, if_rl is receiving bogus frames.

I'm happy to track this one down but have no clue where to start :-)
   * is it switch/cable? (it it is fine with the builtin fxp nic
     or is fxp just ignoring bogus frames without logging?)
   * is it cardbus or if_rl

Any pointers appreciated,


Joost

-- 
j_at_joostm.nl