Haws [mailto:jonathan.h...@sdl.usu.edu]
Sent: Tuesday, October 27, 2009 10:28 AM
To: Price, John @ SDS; linuxppc-dev@lists.ozlabs.org
Subject: RE: Network Stack SKB Reallocation
Hi John,
> I have a custom board with custom fpga's connected to the PPC405EX
> EBC
> bus on banks 2 an
Hi John,
> I have a custom board with custom fpga's connected to the PPC405EX
> EBC
> bus on banks 2 and 3. Running linux 2.6.29.1. The board collects
> data
> and dma's it to a scatter-gather dma buffer and then uses TCP/writev
> +
> Ethernet 9KB Jumbo packets to transmit data off of the board.
Hi Jonathan, I've read your post with great interest.
I have a custom board with custom fpga's connected to the PPC405EX EBC
bus on banks 2 and 3. Running linux 2.6.29.1. The board collects data
and dma's it to a scatter-gather dma buffer and then uses TCP/writev +
Ethernet 9KB Jumbo packets to
On Monday 26 October 2009 19:43:00 Jonathan Haws wrote:
> Quick question about the network stack in general:
>
> Does the stack itself release an SKB allocated by the device driver back to
> the heap upstream, or does it require that the device driver handle that?
There's the concept of passing
So, in my case, I allocate a bunch of skb's that I want to be able to reuse
during network operation (256 in fact). When I pass it up the stack, the stack
will free that skb back to the system making any further use of it invalid
until I call alloc_skb() again?
Thanks.
> On Monday 26 October
