> -----Original Message----- > From: Alexander Kozyrev <[email protected]> > Sent: Friday, July 16, 2021 11:43 > To: [email protected] > Cc: Raslan Darawsheh <[email protected]>; Matan Azrad > <[email protected]>; Slava Ovsiienko <[email protected]> > Subject: [PATCH v2] net/mlx5: do not allow copy to mark via modify field > > The Mark action is a two-stage process in the Mellanox driver. > First, a hardware register is filled with the required value, then this value > is > registered in the software resource table. > > The MODIFY_FIELD action can instruct a Mellanox NIC to copy some value > from an arbitrary packet header field into the hardware register, associated > with the Mark item. But there is no way NIC can modify the software > resource table as well. > > Due to these driver limitations the copying of arbitrary value to the MARK can > not be supported and should be rejected in the MODIFY_FIELD action. > Thank you, Alexander
> Signed-off-by: Alexander Kozyrev <[email protected]> Acked-by: Viacheslav Ovsiienko <[email protected]>
