There is time between the physical removal of the device until sub-device PMDs get a RMV interrupt. At this time DPDK PMDs and applications still don't know about the removal and may call sub-device control operation which should return an error.
This series adds new ethdev operation to check device removal, adds support for it in mlx PMDs, adjust ethdev APIs to return -EIO in case of removal and fixes the fail-safe bug of removal error report. V2: Remove ENODEV definition. Remove checks from all mlx control commands. Add new devop - "is_removed". Implement it in mlx4 and mlx5. Fix failsafe bug by the new devop. V3: Adjust ethdev APIs removal error report. Change failsafe check to check eth_dev* return values. Remove backporting of fail-safe patch. Matan Azrad (6): ethdev: add devop to check removal status net/mlx4: support a device removal check operation net/mlx5: support a device removal check operation ethdev: adjust APIs removal error report ethdev: adjust flow APIs removal error report net/failsafe: fix removed device handling drivers/net/failsafe/failsafe_flow.c | 18 +-- drivers/net/failsafe/failsafe_ops.c | 35 ++++-- drivers/net/failsafe/failsafe_private.h | 12 ++ drivers/net/mlx4/mlx4.c | 1 + drivers/net/mlx4/mlx4.h | 1 + drivers/net/mlx4/mlx4_ethdev.c | 20 +++ drivers/net/mlx5/mlx5.c | 2 + drivers/net/mlx5/mlx5.h | 1 + drivers/net/mlx5/mlx5_ethdev.c | 20 +++ lib/librte_ether/rte_ethdev.c | 213 +++++++++++++++++++++----------- lib/librte_ether/rte_ethdev.h | 68 +++++++++- lib/librte_ether/rte_ethdev_version.map | 7 ++ lib/librte_ether/rte_flow.c | 34 +++-- lib/librte_ether/rte_flow.h | 2 + 14 files changed, 334 insertions(+), 100 deletions(-) -- 1.8.3.1
