On Wed, Apr 12, 2023 at 05:27:33PM +0300, Vladimir Oltean wrote: > How are extern_learn FDB entries processed by spectrum's > SWITCHDEV_FDB_ADD_TO_DEVICE handler? No different than "BR_FDB_STATIC", which is a bug I'm aware of and intend to fix in net-next when I get the time (together with all the other combinations enabled by the bridge). Entry has ageing disabled, but can roam in which case it becomes age-able. TBH, I think most devices don't handle "BR_FDB_STATIC" correctly. In the Linux bridge, "BR_FDB_STATIC" only means ageing disabled. The entry can still roam, but remains "static". I believe that in most devices out there "static" means no roaming and no ageing which is equivalent to "BR_FDB_STATIC | BR_FDB_STICKY". Mentioned in your commit message as well: "As for the hardware FDB entry, that's static, it doesn't move when the station roams." As it stands, the situation is far from perfect, but the patch doesn't solve a regression (always broken) and will introduce one. My suggestion allows you to move forward and solve the "dynamic" case, so let's proceed with that unless there's a better alternative.
