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a8b92ca1b0
Introduce DEVX to enable direct device commands in downstream patches from this series. In that mode of work the firmware manages the isolation between processes' resources and as such a DEVX user id is created and assigned to the given user context upon allocation request. A capability check is done to make sure that this feature is really supported by the firmware prior to creating the DEVX user id. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>