E1000 stops receiving packets after some time

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E1000 stops receiving packets after some time

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Hello all,

I am experimenting with the E1000 with the help of the info found here on OsDev and in the Intel documentation. I tried to write a simple driver able to receive and transmit frames. It seems to work, but the receiving of packets stops working after some time.
I tried to turn on the E1000 logging in Bochs to see what's happening and everytime the story is the same - after some time the message "Device not ready to receive data" is being displayed.
The code itself and the log from Bochs is attached.

Notice: the behaviour in VirtualBox is the same (with the exception that I don't know the exact reason, but I assume it's the same).

Any idea where I am wrong ?

Thanks for help,
Vladimir
Attachments
e1000.txt
Logfile from Bochs
(14.83 KiB) Downloaded 107 times
I825XX.TXT
driver code
(16.42 KiB) Downloaded 74 times
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Re: E1000 stops receiving packets after some time

Post by online »

Solved. The RDLEN value was wrong. In case I have only 1 descriptor available, the value has to be 16 :)
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