X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal_vfio.h;h=68d4750a5c06cc1abe69085ee5c62c0d252b1a63;hb=5d7b673d5fd6663b20c675dd382d9fb43b42af18;hp=5ff63e5d7579c79a3eefe5d40a2cfccf4f801ddb;hpb=e11222c7f429a8cdde5206fd724161f6c363da40;p=dpdk.git diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.h b/lib/librte_eal/linuxapp/eal/eal_vfio.h index 5ff63e5d75..68d4750a5c 100644 --- a/lib/librte_eal/linuxapp/eal/eal_vfio.h +++ b/lib/librte_eal/linuxapp/eal/eal_vfio.h @@ -1,34 +1,5 @@ -/*- - * 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_ @@ -37,26 +8,26 @@ /* * determine if VFIO is present on the system */ -#ifdef RTE_EAL_VFIO +#if !defined(VFIO_PRESENT) && defined(RTE_EAL_VFIO) #include #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0) -#include - -#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 +#include #define RTE_VFIO_TYPE1 VFIO_TYPE1_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) @@ -110,56 +81,37 @@ struct vfio_iommu_spapr_tce_info { #define RTE_VFIO_SPAPR VFIO_SPAPR_TCE_v2_IOMMU #endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0) -#define RTE_VFIO_NOIOMMU 8 -#else -#define RTE_VFIO_NOIOMMU VFIO_NOIOMMU_IOMMU -#endif - -#define VFIO_MAX_GROUPS 64 - -/* - * Function prototypes for VFIO multiprocess sync functions - */ -int vfio_mp_sync_send_request(int socket, int req); -int vfio_mp_sync_receive_request(int socket); -int vfio_mp_sync_send_fd(int socket, int fd); -int vfio_mp_sync_receive_fd(int socket); -int vfio_mp_sync_connect_to_primary(void); +#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_no; + int group_num; int fd; int devices; }; -struct vfio_config { - int vfio_enabled; - int vfio_container_fd; - int vfio_active_groups; - struct vfio_group vfio_groups[VFIO_MAX_GROUPS]; -}; - -#define VFIO_DIR "/dev/vfio" -#define VFIO_CONTAINER_PATH "/dev/vfio/vfio" -#define VFIO_GROUP_FMT "/dev/vfio/%u" -#define VFIO_NOIOMMU_GROUP_FMT "/dev/vfio/noiommu-%u" -#define VFIO_GET_REGION_ADDR(x) ((uint64_t) x << 40ULL) -#define VFIO_GET_REGION_IDX(x) (x >> 40) - /* 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; }; @@ -171,54 +123,22 @@ vfio_set_iommu_type(int vfio_container_fd); int vfio_has_supported_extensions(int vfio_container_fd); -/* open container fd or get an existing one */ -int -vfio_get_container_fd(void); - -/* parse IOMMU group number for a device - * returns 1 on success, -1 for errors, 0 for non-existent group - */ -int -vfio_get_group_no(const char *sysfs_base, - const char *dev_addr, int *iommu_group_no); - -/* open group fd or get an existing one */ -int -vfio_get_group_fd(int iommu_group_no); - -/* remove group fd from internal VFIO group fd array */ -int -clear_group(int vfio_group_fd); - -/** - * Setup vfio_cfg for the device identified by its address. It discovers - * the configured I/O MMU groups or sets a new one for the device. If a new - * groups is assigned, the DMA mapping is performed. - * Returns 0 on success, a negative value on failure and a positive value in - * case the given device cannot be managed this way. - */ -int vfio_setup_device(const char *sysfs_base, const char *dev_addr, - int *vfio_dev_fd, struct vfio_device_info *device_info); - -int vfio_release_device(const char *sysfs_base, const char *dev_addr, int fd); - -int vfio_enable(const char *modname); -int vfio_is_enabled(const char *modname); - -int pci_vfio_enable(void); -int pci_vfio_is_enabled(void); - 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_CLR_GROUP 0x300 #define SOCKET_OK 0x0 #define SOCKET_NO_FD 0x1 #define SOCKET_ERR 0xFF -#define VFIO_PRESENT -#endif /* kernel version */ -#endif /* RTE_EAL_VFIO */ +struct vfio_mp_param { + int req; + int result; + int group_num; +}; + +#endif /* VFIO_PRESENT */ #endif /* EAL_VFIO_H_ */