> -----Original Message-----
> From: Joakim Tjernlund [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, December 11, 2007 2:46 AM
> To: Li Yang-r58472 <[EMAIL PROTECTED]> Netdev
> Cc: Joakim Tjernlund
> Subject: [PATCH] Increase virtual FIFOs in ucc_geth.
>
> Increase UCC_GETH_URFS_INIT to 1152 and
> UCC_GETH_UTFS_INIT to 896 to avoid HW Overrun/Underrun.
Please be noted that these values are only used for 10/100Mbps speed.
Did you get Overrun in 10/100M mode?
- Leo
>
> Signed-off-by: Joakim Tjernlund <[EMAIL PROTECTED]>
> ---
> drivers/net/ucc_geth.h | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ucc_geth.h b/drivers/net/ucc_geth.h
> index bb4dac8..d3f030b 100644
> --- a/drivers/net/ucc_geth.h
> +++ b/drivers/net/ucc_geth.h
> @@ -923,11 +923,11 @@ struct ucc_geth_hardware_statistics {
> #define PHY_CHANGE_TIME 2
>
> /* Fast Ethernet (10/100 Mbps) */
> -#define UCC_GETH_URFS_INIT 512 /* Rx
> virtual FIFO size
> +#define UCC_GETH_URFS_INIT 1152 /* Rx
> virtual FIFO size
> */
> #define UCC_GETH_URFET_INIT 256 /* 1/2 urfs */
> #define UCC_GETH_URFSET_INIT 384 /* 3/4 urfs */
> -#define UCC_GETH_UTFS_INIT 512 /* Tx
> virtual FIFO size
> +#define UCC_GETH_UTFS_INIT 896 /* Tx
> virtual FIFO size
> */
> #define UCC_GETH_UTFET_INIT 256 /* 1/2 utfs */
> #define UCC_GETH_UTFTT_INIT 128
> --
> 1.5.3.6
>
>
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