On 11/11/2022 14:30, Yanjun Zhu wrote: >> >> After these patches, only RXE device can register *FLUSHABLE* MRs >> successfully. If mlx try that, EOPNOSUPP will be returned. >> >> Similarly, Since other hardwares(MLX for example) have not supported >> FLUSH operation, EOPNOSUPP will be returned if users try to to that. >> >> In short, for RXE requester, MLX responder will return error for the >> request. MLX requester is not able to request a FLUSH operation. > > Thanks. Do you mean that FLUSH operation is only supported in RXE? ^_^ > > And MLX does not support FLUSH operation currently? IMO, FLUSH and Atomic Write are newly introduced by IBA spec 1.5 published in 2021. So hardware/drivers(MLX) should do something to support it.
