forked from Imagelibrary/rtems
5068f3f994
* network/if_mve/mv643xx_eth.c: Fixed alignment attribute in descriptor declaration. Not the pointers to the descriptors have to be aligned but the descriptors themselves (didn't cause problems but caused unnecessary holes in 'private' struct). FIX: Added more robustness when number of available TX descriptors drops to zero. (This can e.g., happen if the link goes bad causing packets to stall in the FIFO.) At the following points the transmitter is explicitly (re-)started: o when link comes up and number of available TXDs is zero the TX is restarted. o on a failed attempt to send data due to lack of TXDs the TX is restarted if swiping the TX ring doesn't yield any buffers (i.e., if the # of available buffers is still zero after the swipe).