From: Yishai Hadas <yishaih@nvidia.com>
Date: Mon, 11 Sep 2023 09:38:56 +0000 (+0300)
Subject: vfio/mlx5: Activate the chunk mode functionality
X-Git-Tag: v6.7-rc1~130^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcb2f2ed4a80cfe383d87da75caba958516507e9;p=thirdparty%2Flinux.git

vfio/mlx5: Activate the chunk mode functionality

Now that all pieces are in place, activate the chunk mode functionality
based on device capabilities.

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230911093856.81910-10-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c
index e68bf9ba53002..efd1d252cdc95 100644
--- a/drivers/vfio/pci/mlx5/cmd.c
+++ b/drivers/vfio/pci/mlx5/cmd.c
@@ -261,6 +261,9 @@ void mlx5vf_cmd_set_migratable(struct mlx5vf_pci_core_device *mvdev,
 		mvdev->core_device.vdev.migration_flags |=
 			VFIO_MIGRATION_PRE_COPY;
 
+	if (MLX5_CAP_GEN_2(mvdev->mdev, migration_in_chunks))
+		mvdev->chunk_mode = 1;
+
 end:
 	mlx5_vf_put_core_dev(mvdev->mdev);
 }