From: Eric Dumazet <eric.duma...@gmail.com> Date: Wed, 08 Jan 2014 10:09:47 -0800
> A physical NIC do not use a workqueue to refill its RX queue but uses > the following strategy : > > 0) Pre filling of RX ring buffer with N frames. This can use GFP_KERNEL > allocations with all needed (sleep/retry/shout) logic... > 1) IRQ is handled. > 2) Can we allocate a new buffer (GFP_ATOMIC) ? > If yes, we accept the frame, > and post the new buffer for the 'next frame' > If no, we drop the frame and recycle the memory for next round. +1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
