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Hello, I have tried every conceivable option I could think of to avoid making yet another thread about RTL8139 adapters, yet here I am, stuck on this issue.

I have a D-Link DFE-690TXD CardBus adapter (RTL8139) attached to a Ricoh RL5c476 II CardBus bridge. I am able to transmit, but not receive packets - the RX buffer stays filled with zeroes. I have bus mastering enabled on both the CardBus bridge and the D-Link adapter, I'm hoping that someone can guide me in the correct direction as I may have missed some configuration option?

Thanks in advance.

Hello, without code it is almost impossible to say anything.

It would also be useful to know what packets you are sending to the NIC. I presume that they are ARP packets as they don't rely on a MAC or IP address and are probably the easiest ones to process.

Could you confirm this.

Klakap wrote:Hello, without code it is almost impossible to say anything.

I am using the example code from the wiki - this works fine in QEMU, but cannot receive packets on the physical hardware. Transmit packets works fine.

iansjack wrote:It would also be useful to know what packets you are sending to the NIC. I presume that they are ARP packets as they don't rely on a MAC or IP address and are probably the easiest ones to process.

Could you confirm this.

I am sending DHCP Discover from the RTL8139, DHCP Offer is sent to the RTL8139 but is not copied from the RX FIFO into the RX buffer.

Ok, this is very odd, and I could swear that I've already tried this, but... I browsed to this external link http://www.jbox.dk/sanos/source/sys/dev/rtl8139.c.html and noticed that enable Tx/Rx MUST be enabled before configuring Rx buffer. I moved the line of code to enable Tx/Rx immediately after software reset and... it works

I guess this is something to keep in mind when browsing the wiki, that the code example provided will not work with this particular card.