[PATCH v2 11/19] vdpa/sfc: use container device assignment API

[Anatoly Burakov]

The SFC vDPA driver uses VFIO group bind/unbind functionality for container
device assignment purposes. Use the new container device assignment API
instead to provide clearer semantics.

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
---
 drivers/vdpa/sfc/sfc_vdpa.c | 39 +++++++------------------------------
 drivers/vdpa/sfc/sfc_vdpa.h |  2 --
 2 files changed, 7 insertions(+), 34 deletions(-)

diff --git a/drivers/vdpa/sfc/sfc_vdpa.c b/drivers/vdpa/sfc/sfc_vdpa.c
index eda111954f..99b4ced3f4 100644
--- a/drivers/vdpa/sfc/sfc_vdpa.c
+++ b/drivers/vdpa/sfc/sfc_vdpa.c
@@ -80,22 +80,12 @@ sfc_vdpa_vfio_setup(struct sfc_vdpa_adapter *sva)
 		goto fail_container_create;
 	}
 
-	rc = rte_vfio_get_group_num(rte_pci_get_sysfs_path(), dev_name,
-				    &sva->iommu_group_num);
-	if (rc <= 0) {
-		sfc_vdpa_err(sva, "failed to get IOMMU group for %s : %s",
-			     dev_name, rte_strerror(-rc));
-		goto fail_get_group_num;
-	}
-
-	sva->vfio_group_fd =
-		rte_vfio_container_group_bind(sva->vfio_container_fd,
-					      sva->iommu_group_num);
-	if (sva->vfio_group_fd < 0) {
-		sfc_vdpa_err(sva,
-			     "failed to bind IOMMU group %d to container %d",
-			     sva->iommu_group_num, sva->vfio_container_fd);
-		goto fail_group_bind;
+	rc = rte_vfio_container_assign_device(sva->vfio_container_fd,
+			rte_pci_get_sysfs_path(), dev_name);
+	if (rc < 0) {
+		sfc_vdpa_err(sva, "failed to assign device %s to container %d",
+			     dev_name, sva->vfio_container_fd);
+		goto fail_device_assign;
 	}
 
 	if (rte_pci_map_device(dev) != 0) {
@@ -109,15 +99,7 @@ sfc_vdpa_vfio_setup(struct sfc_vdpa_adapter *sva)
 	return 0;
 
 fail_pci_map_device:
-	if (rte_vfio_container_group_unbind(sva->vfio_container_fd,
-					sva->iommu_group_num) != 0) {
-		sfc_vdpa_err(sva,
-			     "failed to unbind IOMMU group %d from container %d",
-			     sva->iommu_group_num, sva->vfio_container_fd);
-	}
-
-fail_group_bind:
-fail_get_group_num:
+fail_device_assign:
 	if (rte_vfio_container_destroy(sva->vfio_container_fd) != 0) {
 		sfc_vdpa_err(sva, "failed to destroy container %d",
 			     sva->vfio_container_fd);
@@ -132,13 +114,6 @@ sfc_vdpa_vfio_teardown(struct sfc_vdpa_adapter *sva)
 {
 	rte_pci_unmap_device(sva->pdev);
 
-	if (rte_vfio_container_group_unbind(sva->vfio_container_fd,
-					    sva->iommu_group_num) != 0) {
-		sfc_vdpa_err(sva,
-			     "failed to unbind IOMMU group %d from container %d",
-			     sva->iommu_group_num, sva->vfio_container_fd);
-	}
-
 	if (rte_vfio_container_destroy(sva->vfio_container_fd) != 0) {
 		sfc_vdpa_err(sva,
 			     "failed to destroy container %d",
diff --git a/drivers/vdpa/sfc/sfc_vdpa.h b/drivers/vdpa/sfc/sfc_vdpa.h
index 2b843e563d..99a81fd1b0 100644
--- a/drivers/vdpa/sfc/sfc_vdpa.h
+++ b/drivers/vdpa/sfc/sfc_vdpa.h
@@ -70,10 +70,8 @@ struct sfc_vdpa_adapter {
 
 	sfc_vdpa_filter_t		filters;
 
-	int				vfio_group_fd;
 	int				vfio_dev_fd;
 	int				vfio_container_fd;
-	int				iommu_group_num;
 	struct sfc_vdpa_ops_data	*ops_data;
 };
 
-- 
2.47.3