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3 Commits

Author SHA1 Message Date
Yishai Hadas
5b26f2c249 vfio/mlx5: Fix to not use 0 as NULL pointer 
Fix sparse warning to not use plain integer (i.e. 0) as NULL pointer.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 6fadb02126 ("vfio/mlx5: Implement vfio_pci driver for mlx5 devices")
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/202203090703.kxvZumJg-lkp@intel.com
Link: https://lore.kernel.org/r/20220309080217.94274-1-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
 2022-03-09 10:29:40 -07:00
Yishai Hadas
88faa5e8ea vfio/mlx5: Use its own PCI reset_done error handler 
Register its own handler for pci_error_handlers.reset_done and update
state accordingly.

Link: https://lore.kernel.org/all/20220224142024.147653-16-yishaih@nvidia.com
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
 2022-03-03 13:01:19 +02:00
Yishai Hadas
6fadb02126 vfio/mlx5: Implement vfio_pci driver for mlx5 devices 
This patch adds support for vfio_pci driver for mlx5 devices.

It uses vfio_pci_core to register to the VFIO subsystem and then
implements the mlx5 specific logic in the migration area.

The migration implementation follows the definition from uapi/vfio.h and
uses the mlx5 VF->PF command channel to achieve it.

This patch implements the suspend/resume flows.

Link: https://lore.kernel.org/all/20220224142024.147653-14-yishaih@nvidia.com
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
 2022-03-03 13:01:19 +02:00