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Stopping a Network Device

Stopping a Network Device

Oct 25, 2013

NetDev_Stop() is called once each time an interface is stopped.

NetDev_Stop() must perform the following operations:

  1. Disable the receiver and transmitter.

  2. Disable all local MAC interrupt sources.

  3. Clear all local MAC interrupt status flags.

  4. For DMA devices, re-initialize all receive descriptors.

  5. For DMA devices, free all transmit descriptors by calling NetOS_IF_DeallocTaskPost() with the address of the transmit descriptor data areas.

  6. For DMA devices, re-initialize all transmit descriptors.

  7. Set perr to NET_DEV_ERR_NONE if no error occurs. Otherwise, set perr to an appropriate network device error code.