Presently 2.6.6 backs out the CONFIG_8139_RXBUF_IDX in favor of using a hardcoded 8139_RXBUF_IDX (again). This seems to have been done due to some issues occuring with 8139_RXBUF_IDX == 3, however (as the Kconfig pointed out), we still need 8139_RXBUF_IDX == 1 in the CONFIG_SH_DREAMCAST case. The patch which made this change can be seen at: http://linux.bkbits.net:8080/linux-2.5/user=shemminger/cset@1.1371.719.67?nav=!-|index.html|stats|!+|index.html|ChangeSet@-8w Before that, CONFIG_8139_RXBUF_IDX was set to 1 both in the CONFIG_SH_DREAMCAST and CONFIG_EMBEDDED cases. This patch adds that back into the current 8139too. Additionally, why remove the config option at all? Wouldn't it just be easier to drop the range from 0 - 3 to 0 - 2 until problems with a 64K ring size are resolved? --- linux-2.6.6/drivers/net/8139too.c.orig Tue May 11 08:36:24 2004 +++ linux-2.6.6/drivers/net/8139too.c Tue May 11 08:36:29 2004 @@ -171,7 +171,11 @@ * Receive ring size * Warning: 64K ring has hardware issues and may lock up. */ +#if defined(CONFIG_SH_DREAMCAST) || defined(CONFIG_EMBEDDED) +#define RX_BUF_IDX 1 /* 16K ring */ +#else #define RX_BUF_IDX 2 /* 32K ring */ +#endif #define RX_BUF_LEN (8192 << RX_BUF_IDX) #define RX_BUF_PAD 16 #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */