On Mon, 22 Apr 2019 12:08:38 +0000, Ido Schimmel wrote: > This patchset includes two improvements with regards to shared buffer > configuration in mlxsw. > > The first part of this patchset forbids the user from performing illegal > shared buffer configuration that can result in unnecessary packet loss. > In order to better communicate these configuration failures to the user, > extack is propagated from devlink towards drivers. This is done in > patches #1-#8. > > The second part of the patchset deals with the shared buffer > configuration of the CPU port. When a packet is trapped by the device, > it is sent across the PCI bus to the attached host CPU. From the > device's perspective, it is as if the packet is transmitted through the > CPU port. > > While testing traffic directed at the CPU it became apparent that for > certain packet sizes and certain burst sizes, the current shared buffer > configuration of the CPU port is inadequate and results in packet drops. > The configuration is adjusted by patches #9-#14 that create two new pools > - ingress & egress - which are dedicated for CPU traffic.
Acked-by: Jakub Kicinski <[email protected]> Out of curiosity - are you guys considering adding CPU flavour ports, or is there a good reason not to have it exposed?
