On Fri, Sep 01, 2023 at 12:30:37PM +0200, Felix Fietkau wrote: > On 01.09.23 10:39, Pablo Neira Ayuso wrote: > > Hi Felix, > > > > On Thu, Aug 31, 2023 at 10:14:20PM +0200, Felix Fietkau wrote: > > > On many embedded devices, it is common to configure flowtable offloading for > > > a mix of different devices, some of which have hardware offload support and > > > some of which don't. > > > The current code limits the ability of user space to properly set up such a > > > configuration by only allowing adding devices with hardware offload support to > > > a offload-enabled flowtable. > > > Given that offload-enabled flowtables also imply fallback to pure software > > > offloading, this limitation makes little sense. > > > Fix it by not bailing out when the offload setup returns -EOPNOTSUPP > > > > Would you send a v2 to untoggle the offload flag when listing the > > ruleset if EOPNOTSUPP is reported? Thus, the user knows that no > > hardware offload is being used. > > Wouldn't that mess up further updates to the flowtable? From what I can > tell, when updating a flow table, changing its offload flag is not > supported. The flag would be untoggled if hardware offload is not supported. What problematic scenario are you having in mind that might break? In any case, there is a need to provide a way to tell the user if the hardware offload is actually happening or not, if not what I suggest, then propose a different way. But user really needs to know if it runs software or hardware plane to debug issues.