On 08/19/2015 09:02 PM, Eric Dumazet wrote:
> On Wed, 2015-08-19 at 17:56 +0000, Grumbach, Emmanuel wrote:
>>
> 
>> So I feel that making net/core/tso.c more complicated just because of
>> our craziness seems an overkill to me.
>> I'll try a bit harder to see how I can use net/core/tso.c, but I have to
>> say I am pessimistic.
> 
> net/core/tso.c is WIP, feel free to expand it to make it more generic
> and meet your needs.

Yeah - trying to see what can be done.

>
> The point is : we want a core infrastructure, not something that each
> individual driver implements in ~500 lines of code :(
> 
> 

I totally understand that :) I just claim to be unique in a way that
"each individual driver" is ... only me :)

I guess that if we would build the DMA descriptors directly from the
skb_gso (the skb coming from the stack), that's be easier. Our HW
abstraction layer wants an skb and I need to pass several skbs (because
skb->len is very likely not to fit in one single 802.11 packet even if
it is an A-MSDU).
So, trying to use net/core/tso.c basically means, to open the arch of
our driver... Not impossible, but quite a bit of work.
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