ETH_MAX_PACK_SIZE_TAGGED 422 uspace/drv/nic/ne2k/dp8390.c if ((size < ETH_MIN_PACK_SIZE) || (size > ETH_MAX_PACK_SIZE_TAGGED)) { ETH_MAX_PACK_SIZE_TAGGED 514 uspace/drv/nic/ne2k/dp8390.c (length > ETH_MAX_PACK_SIZE_TAGGED)) {HelenOS homepage, sources at GitHub