0 Replies Latest reply on Mar 21, 2012 9:34 AM by rkarne

    82567 NIC driver transmitter problem?

    rkarne

      I am constructing a NIC driver for 82567 chip on Optiplex 960 desktop. This driver is built from scratch and does not use any OS support or

      libraries.

      I am able to receive packets properly. I am not able to send packets on the network. In the transmit descriptor, the DD bit is not getting

      set by the hardware.

      In the transmit descriptor, the command is 0x89.

      TCTL register value loaded is 0x6003F0FA (using legacy mode)

      CTRL register value loaded is 0x18001241

       

      The status in the descriptor is 0.

       

      I tried all possible things, but transmitter does not send out any packets....

       

      Any help in this is greatly appreciated....

       

      Ramesh