vfio: fix structures for sPAPR IOMMU

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@ozlabs.ru>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.h b/lib/librte_eal/linuxapp/eal/eal_vfio.h
index 429d625..5ff63e5 100644 (file)
--- 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;
 };