netdev - Re: [PATCH][v2] ibm_newemac: Added 16K Tx FIFO size support for EMAC4

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Date:	Fri, 09 Oct 2009 13:15:02 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Dave Mitchell <dmitchell@...liedmicro.com>
Cc:	netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH][v2] ibm_newemac: Added 16K Tx FIFO size support for
 EMAC4

On Thu, 2009-10-08 at 11:32 -0500, Dave Mitchell wrote:
> Some of the EMAC V4 implementations support 16K Tx FIFOs. This
> patch adds support for this functionality and fixes typos in the
> Tx FIFO size error messages.

Acked-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---

> Signed-off-by: Dave Mitchell <dmitchell@...liedmicro.com>
> Acked-by: Prodyut Hazarika <phazarika@...liedmicro.com>
> Acked-by: Victor Gallardo <vgallardo@...liedmicro.com>
> Acked-by: Loc Ho <lho@...liedmicro.com>
> ---
>  v1->v2: local date/time was out-of-sync and thus mail was as well
>  
>  drivers/net/ibm_newemac/core.c |    7 +++++--
>  drivers/net/ibm_newemac/emac.h |    1 +
>  2 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
> index 89c82c5..c6591cb 100644
> --- a/drivers/net/ibm_newemac/core.c
> +++ b/drivers/net/ibm_newemac/core.c
> @@ -443,7 +443,7 @@ static u32 __emac_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_s
>  		ret |= EMAC_MR1_TFS_2K;
>  		break;
>  	default:
> -		printk(KERN_WARNING "%s: Unknown Rx FIFO size %d\n",
> +		printk(KERN_WARNING "%s: Unknown Tx FIFO size %d\n",
>  		       dev->ndev->name, tx_size);
>  	}
>  
> @@ -470,6 +470,9 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_
>  	DBG2(dev, "__emac4_calc_base_mr1" NL);
>  
>  	switch(tx_size) {
> +	case 16384:
> +		ret |= EMAC4_MR1_TFS_16K;
> +		break;
>  	case 4096:
>  		ret |= EMAC4_MR1_TFS_4K;
>  		break;
> @@ -477,7 +480,7 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_
>  		ret |= EMAC4_MR1_TFS_2K;
>  		break;
>  	default:
> -		printk(KERN_WARNING "%s: Unknown Rx FIFO size %d\n",
> +		printk(KERN_WARNING "%s: Unknown Tx FIFO size %d\n",
>  		       dev->ndev->name, tx_size);
>  	}
>  
> diff --git a/drivers/net/ibm_newemac/emac.h b/drivers/net/ibm_newemac/emac.h
> index 0afc2cf..d34adf9 100644
> --- a/drivers/net/ibm_newemac/emac.h
> +++ b/drivers/net/ibm_newemac/emac.h
> @@ -153,6 +153,7 @@ struct emac_regs {
>  #define EMAC4_MR1_RFS_16K		0x00280000
>  #define EMAC4_MR1_TFS_2K       		0x00020000
>  #define EMAC4_MR1_TFS_4K		0x00030000
> +#define EMAC4_MR1_TFS_16K		0x00050000
>  #define EMAC4_MR1_TR			0x00008000
>  #define EMAC4_MR1_MWSW_001		0x00001000
>  #define EMAC4_MR1_JPSM			0x00000800


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