mlx5: Extend vfio to support async events and CQ interrupt mode #1146
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VFIO_TYPE1_IOMMU is obsolete, move to use VFIO_TYPE1v2_IOMMU instead. No functional effect is expected. Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Introduce mlx5dv_devx_alloc_msi_vector() and mlx5dv_devx_free_msi_vector() to allocate and free msi vectors, respectively. The allocated msi_vector object is needed when creating an EQ. Signed-off-by: Mark Zhang <markzhang@nvidia.com> Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Introduce mlx5dv_devx_create_eq() and mlx5dv_devx_destroy_eq() to create and destroy EQ objects, respectively. Signed-off-by: Mark Zhang <markzhang@nvidia.com> Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Add support to create a DevX EQ and msi_vectors. Signed-off-by: Neta Ostrovsky <netao@nvidia.com> Signed-off-by: Edward Srouji <edwards@nvidia.com>
Adds a test that creates a DevX EQ and msi_vector. Then changes the port state and catches the event. Signed-off-by: Neta Ostrovsky <netao@nvidia.com> Signed-off-by: Edward Srouji <edwards@nvidia.com>
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This series in the mlx5 vfio driver area enables a DEVX based application the below new functionality.
To let that work we introduced the below new DEVX APIs:
Detailed man pages were added to describe the expected usage.
With the above functionally in place, a vfio application which uses the DEVX interface has the ability to achieve the above goals.
A pyverbs test which uses the new APIs was added to demonstrate a use case of capturing a port change event.