On 7/18/2019 2:29 PM, Vakul Garg wrote: > While running ipsec processing for traffic through multiple network > interfaces, it is observed that caam driver gets less time to poll > responses from caam block compared to ethernet driver. This is because > ethernet driver has as many napi instances per cpu as the number of > ethernet interfaces in system. Therefore, caam driver's napi executes > lesser than the ethernet driver's napi instances. This results in > situation that we end up submitting more requests to caam (which it is > able to finish off quite fast), but don't dequeue the responses at same > rate. This makes caam response FQs bloat with large number of frames. In > some situations, it makes kernel crash due to out-of-memory. To prevent > it We increase the napi budget of dpseci driver to a big value so that > caam driver is able to drain its response queues at enough rate. > > Signed-off-by: Vakul Garg <vakul.garg@xxxxxxx> Reviewed-by: Horia Geantă <horia.geanta@xxxxxxx> Thanks, Horia
