struct rte_gpu;
typedef int (rte_gpu_close_t)(struct rte_gpu *dev);
typedef int (rte_gpu_info_get_t)(struct rte_gpu *dev, struct rte_gpu_info *info);
+typedef int (rte_gpu_mem_alloc_t)(struct rte_gpu *dev, size_t size, void **ptr);
+typedef int (rte_gpu_mem_free_t)(struct rte_gpu *dev, void *ptr);
+typedef int (rte_gpu_mem_register_t)(struct rte_gpu *dev, size_t size, void *ptr);
+typedef int (rte_gpu_mem_unregister_t)(struct rte_gpu *dev, void *ptr);
struct rte_gpu_ops {
/* Get device info. If NULL, info is just copied. */
rte_gpu_info_get_t *dev_info_get;
/* Close device or child context. */
rte_gpu_close_t *dev_close;
+ /* Allocate memory in device. */
+ rte_gpu_mem_alloc_t *mem_alloc;
+ /* Free memory allocated in device. */
+ rte_gpu_mem_free_t *mem_free;
+ /* Register CPU memory in device. */
+ rte_gpu_mem_register_t *mem_register;
+ /* Unregister CPU memory from device. */
+ rte_gpu_mem_unregister_t *mem_unregister;
};
-struct rte_gpu {
- /* Backing device. */
- struct rte_device *device;
+struct rte_gpu_mpshared {
/* Unique identifier name. */
char name[RTE_DEV_NAME_MAX_LEN]; /* Updated by this library. */
+ /* Driver-specific private data shared in multi-process. */
+ void *dev_private;
/* Device info structure. */
struct rte_gpu_info info;
+ /* Counter of processes using the device. */
+ uint16_t process_refcnt; /* Updated by this library. */
+};
+
+struct rte_gpu {
+ /* Backing device. */
+ struct rte_device *device;
+ /* Data shared between processes. */
+ struct rte_gpu_mpshared *mpshared;
/* Driver functions. */
struct rte_gpu_ops ops;
/* Event callback list. */
TAILQ_HEAD(rte_gpu_callback_list, rte_gpu_callback) callbacks;
/* Current state (used or not) in the running process. */
- enum rte_gpu_state state; /* Updated by this library. */
+ enum rte_gpu_state process_state; /* Updated by this library. */
/* Driver-specific private data for the running process. */
void *process_private;
} __rte_cache_aligned;
__rte_internal
struct rte_gpu *rte_gpu_get_by_name(const char *name);
-/* First step of initialization */
+/* First step of initialization in primary process. */
__rte_internal
struct rte_gpu *rte_gpu_allocate(const char *name);
+/* First step of initialization in secondary process. */
+__rte_internal
+struct rte_gpu *rte_gpu_attach(const char *name);
+
/* Last step of initialization. */
__rte_internal
void rte_gpu_complete_new(struct rte_gpu *dev);
-/* Last step of removal. */
+/* Last step of removal (primary or secondary process). */
__rte_internal
int rte_gpu_release(struct rte_gpu *dev);