On 01.05.2012 22:09, Bean wrote:
> On Wed, May 2, 2012 at 4:06 AM, Vladimir 'φ-coder/phcoder' Serbinenko
> <phcoder@gmail.com> wrote:
>> On 01.05.2012 22:02, Bean wrote:
>>> Hi,
>>>
>>> Yeah, I have a patch that save the buffer for later use when there is
>>> no data, it can solve the unnecessary alloc/free loop.
>> No, what I mean: allocate a buffer once for every card and then do
>> send/recv with only this buffer and copy to/from it when necessary. This
>> way if the card DMAs the packet to the same buffer it won't corrupt
>> anything.
> Hi,
>
> It's not ok with fragmentation, since there could be multiple ethernet
> packet for an ip packet, we need to store the buffer for assembling.
We use the buffer I said only for actual calls. It's copied to
newly-allocated packet as soon as the call returns.


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko