On Tue, 16 Apr 2024 15:01:44 +0300, Leon Romanovsky wrote:
> The existing behavior of ib_umad, which maintains received MAD
> packets in an unbounded list, poses a risk of uncontrolled growth.
> As user-space applications extract packets from this list, the rate
> of extraction may not match the rate of incoming packets, leading
> to potential list overflow.
>
> To address this, we introduce a limit to the size of the list. After
> considering typical scenarios, such as OpenSM processing, which can
> handle approximately 100k packets per second, and the 1-second retry
> timeout for most packets, we set the list size limit to 200k. Packets
> received beyond this limit are dropped, assuming they are likely timed
> out by the time they are handled by user-space.
>
> [...]
Applied, thanks!
[1/1] IB/core: Implement a limit on UMAD receive List
https://git.kernel.org/rdma/rdma/c/ca0b44e20a6f30
Best regards,
--
Leon Romanovsky <leon@xxxxxxxxxx>
