-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#ifndef EAL_VFIO_H_
/*
* determine if VFIO is present on the system
*/
-#ifdef RTE_EAL_VFIO
+#if !defined(VFIO_PRESENT) && defined(RTE_EAL_VFIO)
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)
-#include <linux/vfio.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
-#define RTE_PCI_MSIX_TABLE_BIR 0x7
-#define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
-#define RTE_PCI_MSIX_FLAGS_QSIZE 0x07ff
+#define VFIO_PRESENT
#else
-#define RTE_PCI_MSIX_TABLE_BIR PCI_MSIX_TABLE_BIR
-#define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
-#define RTE_PCI_MSIX_FLAGS_QSIZE PCI_MSIX_FLAGS_QSIZE
-#endif
+#pragma message("VFIO configured but not supported by this kernel, disabling.")
+#endif /* kernel version >= 3.6.0 */
+#endif /* RTE_EAL_VFIO */
+
+#ifdef VFIO_PRESENT
+
+#include <stdint.h>
+#include <linux/vfio.h>
#define RTE_VFIO_TYPE1 VFIO_TYPE1_IOMMU
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
-#define RTE_VFIO_NOIOMMU 8
-#else
-#define RTE_VFIO_NOIOMMU VFIO_NOIOMMU_IOMMU
+#ifndef VFIO_SPAPR_TCE_v2_IOMMU
+#define RTE_VFIO_SPAPR 7
+#define VFIO_IOMMU_SPAPR_REGISTER_MEMORY _IO(VFIO_TYPE, VFIO_BASE + 17)
+#define VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY _IO(VFIO_TYPE, VFIO_BASE + 18)
+#define VFIO_IOMMU_SPAPR_TCE_CREATE _IO(VFIO_TYPE, VFIO_BASE + 19)
+#define VFIO_IOMMU_SPAPR_TCE_REMOVE _IO(VFIO_TYPE, VFIO_BASE + 20)
+
+struct vfio_iommu_spapr_register_memory {
+ uint32_t argsz;
+ uint32_t flags;
+ uint64_t vaddr;
+ uint64_t size;
+};
+
+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;
+};
+
+struct vfio_iommu_spapr_tce_ddw_info {
+ uint64_t pgsizes;
+ uint32_t max_dynamic_windows_supported;
+ uint32_t levels;
+};
+
+/* SPAPR_v2 is not present, but SPAPR might be */
+#ifndef VFIO_SPAPR_TCE_IOMMU
+#define VFIO_IOMMU_SPAPR_TCE_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)
+
+struct vfio_iommu_spapr_tce_info {
+ uint32_t argsz;
+ uint32_t flags;
+ uint32_t dma32_window_start;
+ uint32_t dma32_window_size;
+ struct vfio_iommu_spapr_tce_ddw_info ddw;
+};
+#endif /* VFIO_SPAPR_TCE_IOMMU */
+
+#else /* VFIO_SPAPR_TCE_v2_IOMMU */
+#define RTE_VFIO_SPAPR VFIO_SPAPR_TCE_v2_IOMMU
#endif
-#define VFIO_PRESENT
-#endif /* kernel version */
-#endif /* RTE_EAL_VFIO */
+#define VFIO_MAX_GROUPS RTE_MAX_VFIO_GROUPS
+#define VFIO_MAX_CONTAINERS RTE_MAX_VFIO_CONTAINERS
+
+/*
+ * we don't need to store device fd's anywhere since they can be obtained from
+ * the group fd via an ioctl() call.
+ */
+struct vfio_group {
+ int group_num;
+ int fd;
+ int devices;
+};
+
+/* DMA mapping function prototype.
+ * Takes VFIO container fd as a parameter.
+ * Returns 0 on success, -1 on error.
+ * */
+typedef int (*vfio_dma_func_t)(int);
+
+/* Custom memory region DMA mapping function prototype.
+ * Takes VFIO container fd, virtual address, phisical address, length and
+ * operation type (0 to unmap 1 for map) as a parameters.
+ * Returns 0 on success, -1 on error.
+ **/
+typedef int (*vfio_dma_user_func_t)(int fd, uint64_t vaddr, uint64_t iova,
+ uint64_t len, int do_map);
+
+struct vfio_iommu_type {
+ int type_id;
+ const char *name;
+ vfio_dma_user_func_t dma_user_map_func;
+ vfio_dma_func_t dma_map_func;
+};
+
+/* get the vfio container that devices are bound to by default */
+int vfio_get_default_container_fd(void);
+
+/* pick IOMMU type. returns a pointer to vfio_iommu_type or NULL for error */
+const struct vfio_iommu_type *
+vfio_set_iommu_type(int vfio_container_fd);
+
+/* check if we have any supported extensions */
+int
+vfio_has_supported_extensions(int vfio_container_fd);
+
+int vfio_mp_sync_setup(void);
+
+#define EAL_VFIO_MP "eal_vfio_mp_sync"
+
+#define SOCKET_REQ_CONTAINER 0x100
+#define SOCKET_REQ_GROUP 0x200
+#define SOCKET_REQ_DEFAULT_CONTAINER 0x400
+#define SOCKET_OK 0x0
+#define SOCKET_NO_FD 0x1
+#define SOCKET_ERR 0xFF
+
+struct vfio_mp_param {
+ int req;
+ int result;
+ int group_num;
+};
+
+#endif /* VFIO_PRESENT */
#endif /* EAL_VFIO_H_ */
Code Review / deb_dpdk.git / blobdiff