[U-Boot] [PATCH 2/2] net: increase maximum frame size to accomediate VLAN packets

Stefan Agner stefan at agner.ch
Thu Apr 14 01:41:28 CEST 2016


Hi Tom,

Sorry, I accidentally didn't add the v2 in the Subject...

On 2016-04-13 16:38, Stefan Agner wrote:
...
>  /*
> - * Maximum packet size; used to allocate packet storage.
> - * TFTP packets can be 524 bytes + IP header + ethernet header.
> - * Lets be conservative, and go for 38 * 16.  (Must also be
> - * a multiple of 32 bytes).
> - */
> -/*
> - * AS.HARNOIS : Better to set PKTSIZE to maximum size because
> - * traffic type is not always controlled
> - * maximum packet size =  1518
> + * Maximum packet size; used to allocate packet storage. Use
> + * the maxium Ethernet frame size as specified by the Ethernet
> + * standard including the 802.1Q tag (VLAN tagging).
> + * maximum packet size =  1522
>   * maximum packet size and multiple of 32 bytes =  1536
>   */
> -#define PKTSIZE			1518
> +#define PKTSIZE			1522
>  #define PKTSIZE_ALIGN		1536
> -/*#define PKTSIZE		608*/

I rewrote the whole comment, as I felt it does not make sense to keep
history in the source file. Hope this is ok for you.

--
Stefan


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