Previously dc(4) always checked whether there is pending interrupts and this consumed a lot of CPU cycles in interrupt handler. Limit the number of processing for TX/RX frames to 16. Also allow sending frames in the loop not to starve TX under high RX load. Reading DC_ISR register should be protected with driver lock, otherwise interrupt handler could be run(e.g. link state change) before the completion of dc_init_locked(). While I'm here remove unneeded code. |
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dcphy.c | ||
if_dc.c | ||
if_dcreg.h | ||
pnphy.c |