Re: [lwip-users] add 2 netif for 2 ETH MAC´s to have 2 buffer pools

[Thomas Richter (TCD - DE/Dresden)]

Hi Kieran,

I thought so too.
My approach is now to do some changes in the used Ethernet driver
(Altera TSE by Bill) and IP stack.
I will add a second buffer pool (e.g. "PBUF_POOL2" in memp_std.h) with
same pool size (PBUF_POOL_SIZE * PBUF_POOL_BUFSIZE) besides the existing
and will double all handles of "PBUF_POOL" types in the lwIP code.

What do you think, is it a possible way?

Or do you see a better way?
Maybe
- loading lwIP completely twice ??
- defining a "watermark" / limit or something else for data port at 50%
of pool buffer size to provoke that pool is "full" at this "line" ??
- another idea?

Best regards
Thomas

Am 16.05.2011 10:33, schrieb Kieran Mansley:
> On Mon, 2011-05-16 at 09:41 +0200, Thomas Richter (TCD - DE/Dresden)
> wrote:
>
>> Is it possible with the same lwIP ( TCP/IP stack)?
>> If yes, use the two different netif´s (adding with netif_add(&netif1,
>> ..., ethernetif_init1, ethernet_input1) and netif_add(&netif2, ...,
>> ethernetif_init2, ethernet_input2) ) the same pbuf pool
>> (LWIP_PBUF_MEMPOOL in memp_std.h with PBUF_POOL_SIZE) ??
> I think as it is now lwIP will use a single pool for both the netifs.  
>
> Kieran
>
>
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