Re: [PATCH net v4] lan743x: fix rx_napi_poll/interrupt ping-pong

2020-12-16 Thread Sven Van Asbroeck
Hi Jakub, On Wed, Dec 16, 2020 at 12:03 PM Jakub Kicinski wrote: > > Applied, thanks Sven. > > I'll leave it out of our stable submission, and expect Sasha's > autoselection bot to pick it up. This should give us more time > for testing before the patch makes its way to stable trees. > Let's see

Re: [PATCH net v4] lan743x: fix rx_napi_poll/interrupt ping-pong

2020-12-16 Thread Jakub Kicinski
On Tue, 15 Dec 2020 11:19:54 -0500 Sven Van Asbroeck wrote: > From: Sven Van Asbroeck > > Even if there is more rx data waiting on the chip, the rx napi poll fn > will never run more than once - it will always read a few buffers, then > bail out and re-arm interrupts. Which results in ping-pong b

[PATCH net v4] lan743x: fix rx_napi_poll/interrupt ping-pong

2020-12-15 Thread Sven Van Asbroeck
From: Sven Van Asbroeck Even if there is more rx data waiting on the chip, the rx napi poll fn will never run more than once - it will always read a few buffers, then bail out and re-arm interrupts. Which results in ping-pong between napi and interrupt. This defeats the purpose of napi, and is b