[dpdk-dev] [PATCH dpdk v2] vfio/ppc64/spapr: Use correct structures for add/remove windows

[Alexey Kardashevskiy]

If Linux UAPI headers in the system do not have VFIO_SPAPR_TCE_v2_IOMMU
defined, DPDK define necessary structures itself. However the existing
definitions are different from ones pushed to the mainline kernel.

This copies structures passed via VFIO_IOMMU_SPAPR_TCE_CREATE and
VFIO_IOMMU_SPAPR_TCE_REMOVE ioctls.

No change in behaviour is expected if installed linux UAPI headers
have knowledge of VFIO_SPAPR_TCE_v2_IOMMU.

Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>
---
Changes:
v2:
* changed commit log after I realized that the linux UAPI headers are
currently used and if a distro is quite fresh, it has everything
defined correctly
---
 lib/librte_eal/linuxapp/eal/eal_vfio.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.h b/lib/librte_eal/linuxapp/eal/eal_vfio.h
index 239ac4d8d..4a0283cb4 100644
--- a/lib/librte_eal/linuxapp/eal/eal_vfio.h
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.h
@@ -69,13 +69,21 @@ struct vfio_iommu_spapr_register_memory {
 
 struct vfio_iommu_spapr_tce_create {
 	uint32_t argsz;
+	uint32_t flags;
+	/* in */
 	uint32_t page_shift;
+	uint32_t __resv1;
 	uint64_t window_size;
 	uint32_t levels;
+	uint32_t __resv2;
+	/* out */
+	uint64_t start_addr;
 };
 
 struct vfio_iommu_spapr_tce_remove {
 	uint32_t argsz;
+	uint32_t flags;
+	/* in */
 	uint64_t start_addr;
 };
 
-- 
2.11.0