smcs91c111 driver cant allocate memory

Anyone see unable to Tx with smc9000 driver for smcs91c111 chip
allocation ints never happen and the chip has no memory left in the

  • Chip is older than the 91C111 which means
  • the MCR is implemented. We reserve 1 packets-worth
  • of memory for transmit, to prevent TX MMU allocations
  • from pending forever. It appears that on older chips
  • (not the 111) releasing an RX packet while a TX alloc is
  • pending screws up the MMU. On these chips, we limit
  • the memory that receive can use, to prevent a deadlock
  • condition whereby all memory is used up by unprocessed
  • receive packets, and the transmitter has just issued
  • an allocate command.