mem: fix undefined behavior in NUMA-aware mapping

[dpdk.git] / lib / librte_eal / linuxapp / eal / eal_vfio.h

diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.h b/lib/librte_eal/linuxapp/eal/eal_vfio.h
index 549f442..68d4750 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal_vfio.h
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.h
@@ -81,41 +81,19 @@ 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 RTE_MAX_VFIO_GROUPS
-
-/*
- * 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_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;
-       const struct vfio_iommu_type *vfio_iommu_type;
-       struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
-};
-
 /* DMA mapping function prototype.
  * Takes VFIO container fd as a parameter.
  * Returns 0 on success, -1 on error.
@@ -145,30 +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);
-
 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
 
+struct vfio_mp_param {
+       int req;
+       int result;
+       int group_num;
+};
+
 #endif /* VFIO_PRESENT */
 
 #endif /* EAL_VFIO_H_ */