[PATCH v3 10/10] vfio: use imported uAPI header

David Marchand david.marchand at redhat.com
Fri Sep 19 10:38:07 CEST 2025


Now that we have a v6.16 header in DPDK, we can remove all remaining
wrappers around VFIO uapi.

Signed-off-by: David Marchand <david.marchand at redhat.com>
Reviewed-by: Rosen Xu <rosen.xu at altera.com>
---
Changes since RFC v2:
- fixed header inclusion order (see patch 1),
- converted net/xsc,

---
 drivers/bus/cdx/cdx_vfio.c                 | 47 +++++-----------------
 drivers/bus/fslmc/fslmc_vfio.c             |  3 +-
 drivers/bus/fslmc/portal/dpaa2_hw_dpio.c   |  3 +-
 drivers/bus/pci/linux/pci_vfio.c           |  4 +-
 drivers/bus/platform/platform.c            |  4 +-
 drivers/common/cnxk/roc_platform.c         |  3 +-
 drivers/crypto/bcmfs/bcmfs_vfio.c          |  4 +-
 drivers/net/xsc/xsc_vfio.c                 |  3 +-
 drivers/raw/ifpga/afu_pmd_n3000.c          |  4 +-
 drivers/raw/ifpga/base/ifpga_feature_dev.c |  3 +-
 drivers/vdpa/ifc/ifcvf_vdpa.c              |  4 +-
 drivers/vdpa/nfp/nfp_vdpa.c                |  4 +-
 drivers/vdpa/sfc/sfc_vdpa_ops.c            |  4 +-
 lib/eal/linux/eal_interrupts.c             |  4 +-
 lib/eal/linux/eal_vfio.c                   |  3 +-
 15 files changed, 38 insertions(+), 59 deletions(-)

diff --git a/drivers/bus/cdx/cdx_vfio.c b/drivers/bus/cdx/cdx_vfio.c
index 576718a659..c03bc01df7 100644
--- a/drivers/bus/cdx/cdx_vfio.c
+++ b/drivers/bus/cdx/cdx_vfio.c
@@ -11,6 +11,8 @@
  *
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/eventfd.h>
@@ -18,8 +20,6 @@
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 
-#include <linux/vfio.h>
-
 #include <eal_export.h>
 #include <rte_eal_paging.h>
 #include <rte_malloc.h>
@@ -616,33 +616,6 @@ rte_cdx_vfio_intr_disable(const struct rte_intr_handle *intr_handle)
 	return ret;
 }
 
-/* VFIO_DEVICE_FEATURE is defined for kernel version 5.7 and newer. */
-#ifdef	VFIO_DEVICE_FEATURE
-#define	RTE_VFIO_DEVICE_FEATURE	VFIO_DEVICE_FEATURE
-#else
-#define	RTE_VFIO_DEVICE_FEATURE	_IO(VFIO_TYPE, VFIO_BASE + 17)
-struct vfio_device_feature {
-	__u32	argsz;
-	__u32	flags;
-#define	VFIO_DEVICE_FEATURE_MASK	(0xffff) /* 16-bit feature index */
-#define	VFIO_DEVICE_FEATURE_GET		(1 << 16) /* Get feature into data[] */
-#define	VFIO_DEVICE_FEATURE_SET		(1 << 17) /* Set feature from data[] */
-#define	VFIO_DEVICE_FEATURE_PROBE	(1 << 18) /* Probe feature support */
-	__u8	data[];
-};
-#endif
-
-#ifdef	VFIO_DEVICE_FEATURE_BUS_MASTER
-#define	RTE_VFIO_DEVICE_FEATURE_BUS_MASTER	VFIO_DEVICE_FEATURE_BUS_MASTER
-#else
-#define	RTE_VFIO_DEVICE_FEATURE_BUS_MASTER	10
-struct vfio_device_feature_bus_master {
-	__u32 op;
-#define	VFIO_DEVICE_FEATURE_CLEAR_MASTER	0	/* Clear Bus Master */
-#define	VFIO_DEVICE_FEATURE_SET_MASTER		1	/* Set Bus Master */
-};
-#endif
-
 /* Enable Bus Mastering */
 RTE_EXPORT_INTERNAL_SYMBOL(rte_cdx_vfio_bm_enable)
 int
@@ -668,9 +641,9 @@ rte_cdx_vfio_bm_enable(struct rte_cdx_device *dev)
 
 	feature->argsz = argsz;
 
-	feature->flags = RTE_VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_PROBE;
+	feature->flags = VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_PROBE;
 	feature->flags |= VFIO_DEVICE_FEATURE_SET;
-	ret = ioctl(vfio_dev_fd, RTE_VFIO_DEVICE_FEATURE, feature);
+	ret = ioctl(vfio_dev_fd, VFIO_DEVICE_FEATURE, feature);
 	if (ret) {
 		CDX_BUS_ERR("Bus Master configuring not supported for device: %s, error: %d (%s)",
 			dev->name, errno, strerror(errno));
@@ -678,9 +651,9 @@ rte_cdx_vfio_bm_enable(struct rte_cdx_device *dev)
 		return ret;
 	}
 
-	feature->flags = RTE_VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_SET;
+	feature->flags = VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_SET;
 	vfio_bm_feature->op = VFIO_DEVICE_FEATURE_SET_MASTER;
-	ret = ioctl(vfio_dev_fd, RTE_VFIO_DEVICE_FEATURE, feature);
+	ret = ioctl(vfio_dev_fd, VFIO_DEVICE_FEATURE, feature);
 	if (ret < 0)
 		CDX_BUS_ERR("BM Enable Error for device: %s, Error: %d (%s)",
 			dev->name, errno, strerror(errno));
@@ -713,9 +686,9 @@ rte_cdx_vfio_bm_disable(struct rte_cdx_device *dev)
 
 	feature->argsz = argsz;
 
-	feature->flags = RTE_VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_PROBE;
+	feature->flags = VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_PROBE;
 	feature->flags |= VFIO_DEVICE_FEATURE_SET;
-	ret = ioctl(vfio_dev_fd, RTE_VFIO_DEVICE_FEATURE, feature);
+	ret = ioctl(vfio_dev_fd, VFIO_DEVICE_FEATURE, feature);
 	if (ret) {
 		CDX_BUS_ERR("Bus Master configuring not supported for device: %s, Error: %d (%s)",
 			dev->name, errno, strerror(errno));
@@ -723,9 +696,9 @@ rte_cdx_vfio_bm_disable(struct rte_cdx_device *dev)
 		return ret;
 	}
 
-	feature->flags = RTE_VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_SET;
+	feature->flags = VFIO_DEVICE_FEATURE_BUS_MASTER | VFIO_DEVICE_FEATURE_SET;
 	vfio_bm_feature->op = VFIO_DEVICE_FEATURE_CLEAR_MASTER;
-	ret = ioctl(vfio_dev_fd, RTE_VFIO_DEVICE_FEATURE, feature);
+	ret = ioctl(vfio_dev_fd, VFIO_DEVICE_FEATURE, feature);
 	if (ret < 0)
 		CDX_BUS_ERR("BM Disable Error for device: %s, Error: %d (%s)",
 			dev->name, errno, strerror(errno));
diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index 6219057a4e..550d4e0e8d 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -5,6 +5,8 @@
  *
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/types.h>
@@ -20,7 +22,6 @@
 #include <dirent.h>
 #include <sys/eventfd.h>
 #include <ctype.h>
-#include <linux/vfio.h>
 
 #include <eal_export.h>
 #include <eal_filesystem.h>
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
index cffbf3c28a..2a9e519668 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
@@ -4,6 +4,8 @@
  *   Copyright 2016-2022 NXP
  *
  */
+#include <uapi/linux/vfio.h>
+
 #include <unistd.h>
 #include <stdio.h>
 #include <string.h>
@@ -22,7 +24,6 @@
 #include <sys/epoll.h>
 #include <sys/eventfd.h>
 #include <sys/syscall.h>
-#include <linux/vfio.h>
 
 #include <eal_export.h>
 #include <rte_mbuf.h>
diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index 46b87c7c38..c63721dd61 100644
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c
@@ -2,6 +2,8 @@
  * Copyright(c) 2010-2014 Intel Corporation
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <unistd.h>
 #include <string.h>
 #include <fcntl.h>
@@ -11,8 +13,6 @@
 #include <sys/mman.h>
 #include <stdbool.h>
 
-#include <linux/vfio.h>
-
 #include <rte_log.h>
 #include <rte_pci.h>
 #include <rte_bus_pci.h>
diff --git a/drivers/bus/platform/platform.c b/drivers/bus/platform/platform.c
index 149cba81a7..f6673cf181 100644
--- a/drivers/bus/platform/platform.c
+++ b/drivers/bus/platform/platform.c
@@ -2,6 +2,8 @@
  * Copyright(C) 2023 Marvell.
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <dirent.h>
 #include <inttypes.h>
 #include <stdlib.h>
@@ -11,8 +13,6 @@
 #include <sys/queue.h>
 #include <unistd.h>
 
-#include <linux/vfio.h>
-
 #include <bus_driver.h>
 #include <bus_platform_driver.h>
 #include <eal_export.h>
diff --git a/drivers/common/cnxk/roc_platform.c b/drivers/common/cnxk/roc_platform.c
index 88f229163a..e13cb42285 100644
--- a/drivers/common/cnxk/roc_platform.c
+++ b/drivers/common/cnxk/roc_platform.c
@@ -2,6 +2,8 @@
  * Copyright(C) 2021 Marvell.
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <eal_export.h>
 #include <rte_log.h>
 
@@ -11,7 +13,6 @@
 #if defined(__linux__)
 
 #include <inttypes.h>
-#include <linux/vfio.h>
 #include <sys/eventfd.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
diff --git a/drivers/crypto/bcmfs/bcmfs_vfio.c b/drivers/crypto/bcmfs/bcmfs_vfio.c
index e747bef924..e7f7ed994c 100644
--- a/drivers/crypto/bcmfs/bcmfs_vfio.c
+++ b/drivers/crypto/bcmfs/bcmfs_vfio.c
@@ -3,12 +3,12 @@
  * All rights reserved.
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/ioctl.h>
 
-#include <linux/vfio.h>
-
 #include <rte_vfio.h>
 
 #include "bcmfs_device.h"
diff --git a/drivers/net/xsc/xsc_vfio.c b/drivers/net/xsc/xsc_vfio.c
index c233728c5f..2177971827 100644
--- a/drivers/net/xsc/xsc_vfio.c
+++ b/drivers/net/xsc/xsc_vfio.c
@@ -2,11 +2,12 @@
  * Copyright 2025 Yunsilicon Technology Co., Ltd.
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <sys/mman.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <linux/vfio.h>
 #include <sys/eventfd.h>
 #include <sys/ioctl.h>
 
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c b/drivers/raw/ifpga/afu_pmd_n3000.c
index ec2fdd46df..b4c2f0d0a8 100644
--- a/drivers/raw/ifpga/afu_pmd_n3000.c
+++ b/drivers/raw/ifpga/afu_pmd_n3000.c
@@ -2,6 +2,8 @@
  * Copyright(c) 2022 Intel Corporation
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <errno.h>
 #include <stdio.h>
 #include <stdint.h>
@@ -13,8 +15,6 @@
 #include <sys/eventfd.h>
 #include <sys/ioctl.h>
 
-#include <linux/vfio.h>
-
 #include <rte_eal.h>
 #include <rte_malloc.h>
 #include <rte_memcpy.h>
diff --git a/drivers/raw/ifpga/base/ifpga_feature_dev.c b/drivers/raw/ifpga/base/ifpga_feature_dev.c
index 3402ad97e4..1493d87ea4 100644
--- a/drivers/raw/ifpga/base/ifpga_feature_dev.c
+++ b/drivers/raw/ifpga/base/ifpga_feature_dev.c
@@ -2,8 +2,9 @@
  * Copyright(c) 2010-2018 Intel Corporation
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <sys/ioctl.h>
-#include <linux/vfio.h>
 
 #include "ifpga_feature_dev.h"
 
diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index c8e47e41c1..f319d455ba 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -2,6 +2,8 @@
  * Copyright(c) 2018 Intel Corporation
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <unistd.h>
 #include <pthread.h>
 #include <fcntl.h>
@@ -11,8 +13,6 @@
 #include <linux/virtio_net.h>
 #include <stdbool.h>
 
-#include <linux/vfio.h>
-
 #include <rte_eal_paging.h>
 #include <rte_malloc.h>
 #include <rte_memory.h>
diff --git a/drivers/vdpa/nfp/nfp_vdpa.c b/drivers/vdpa/nfp/nfp_vdpa.c
index c1ffbd1f91..f4fd5c92ec 100644
--- a/drivers/vdpa/nfp/nfp_vdpa.c
+++ b/drivers/vdpa/nfp/nfp_vdpa.c
@@ -3,13 +3,13 @@
  * All rights reserved.
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <pthread.h>
 #include <sys/epoll.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
 
-#include <linux/vfio.h>
-
 #include <nfp_common_pci.h>
 #include <nfp_dev.h>
 #include <rte_vfio.h>
diff --git a/drivers/vdpa/sfc/sfc_vdpa_ops.c b/drivers/vdpa/sfc/sfc_vdpa_ops.c
index 1ece47d373..84ba141b34 100644
--- a/drivers/vdpa/sfc/sfc_vdpa_ops.c
+++ b/drivers/vdpa/sfc/sfc_vdpa_ops.c
@@ -2,12 +2,12 @@
  * Copyright(c) 2020-2021 Xilinx, Inc.
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <pthread.h>
 #include <unistd.h>
 #include <sys/ioctl.h>
 
-#include <linux/vfio.h>
-
 #include <rte_errno.h>
 #include <rte_malloc.h>
 #include <rte_vdpa.h>
diff --git a/lib/eal/linux/eal_interrupts.c b/lib/eal/linux/eal_interrupts.c
index d1789cbda2..9db978923a 100644
--- a/lib/eal/linux/eal_interrupts.c
+++ b/lib/eal/linux/eal_interrupts.c
@@ -2,6 +2,8 @@
  * Copyright(c) 2010-2014 Intel Corporation
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -15,8 +17,6 @@
 #include <assert.h>
 #include <stdbool.h>
 
-#include <linux/vfio.h>
-
 #include <eal_export.h>
 #include <eal_trace_internal.h>
 #include <rte_common.h>
diff --git a/lib/eal/linux/eal_vfio.c b/lib/eal/linux/eal_vfio.c
index 91e85225db..45c1354390 100644
--- a/lib/eal/linux/eal_vfio.c
+++ b/lib/eal/linux/eal_vfio.c
@@ -2,13 +2,14 @@
  * Copyright(c) 2010-2018 Intel Corporation
  */
 
+#include <uapi/linux/vfio.h>
+
 #include <inttypes.h>
 #include <string.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/ioctl.h>
 #include <dirent.h>
-#include <linux/vfio.h>
 
 #include <rte_errno.h>
 #include <rte_log.h>
-- 
2.51.0



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