uint32_t processor_count;
/** Total memory available on device. */
size_t total_memory;
- /* Local NUMA memory ID. -1 if unknown. */
+ /** GPU memory page size. */
+ size_t page_size;
+ /** Local NUMA memory ID. -1 if unknown. */
int16_t numa_node;
};
struct rte_gpu_comm_pkt *pkt_list;
/** Number of packets in the list. */
uint32_t num_pkts;
- /** Status of the list. */
- enum rte_gpu_comm_list_status status;
+ /** Status of the list. CPU pointer. */
+ enum rte_gpu_comm_list_status *status_h;
+ /** Status of the list. GPU pointer. */
+ enum rte_gpu_comm_list_status *status_d;
};
/**
__rte_experimental
int rte_gpu_mem_unregister(int16_t dev_id, void *ptr);
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Map a chunk of GPU memory to make it accessible from the CPU
+ * using the memory pointer returned by the function.
+ * GPU memory has to be allocated via rte_gpu_mem_alloc().
+ *
+ * @param dev_id
+ * Device ID requiring mapped memory.
+ * @param size
+ * Number of bytes to map.
+ * Requesting 0 will do nothing.
+ * @param ptr
+ * Pointer to the GPU memory area to be mapped.
+ * NULL is a no-op accepted value.
+
+ * @return
+ * A pointer to the mapped GPU memory usable by the CPU, otherwise NULL and rte_errno is set:
+ * - ENODEV if invalid dev_id
+ * - ENOTSUP if operation not supported by the driver
+ * - E2BIG if size is higher than limit
+ * - ENOMEM if out of space
+ * - EPERM if driver error
+ */
+__rte_experimental
+void *rte_gpu_mem_cpu_map(int16_t dev_id, size_t size, void *ptr);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Unmap a chunk of GPU memory previously mapped with rte_gpu_mem_cpu_map()
+ *
+ * @param dev_id
+ * Reference device ID.
+ * @param ptr
+ * Pointer to the GPU memory area to be unmapped.
+ * NULL is a no-op accepted value.
+ *
+ * @return
+ * 0 on success, -rte_errno otherwise:
+ * - ENODEV if invalid dev_id
+ * - ENOTSUP if operation not supported by the driver
+ * - EPERM if driver error
+ */
+__rte_experimental
+int rte_gpu_mem_cpu_unmap(int16_t dev_id, void *ptr);
+
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice.
int rte_gpu_comm_populate_list_pkts(struct rte_gpu_comm_list *comm_list_item,
struct rte_mbuf **mbufs, uint32_t num_mbufs);
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Set status flag value of a communication list item.
+ *
+ * @param comm_list_item
+ * Communication list item to query.
+ * @param status
+ * Status value to set.
+ *
+ * @return
+ * 0 on success, -rte_errno otherwise:
+ * - EINVAL if invalid input params
+ */
+__rte_experimental
+int rte_gpu_comm_set_status(struct rte_gpu_comm_list *comm_list_item,
+ enum rte_gpu_comm_list_status status);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Get status flag value of a communication list item.
+ *
+ * @param comm_list_item
+ * Communication list item to query.
+ * Input parameter.
+ * @param status
+ * Communication list item status flag value.
+ * Output parameter.
+ *
+ * @return
+ * 0 on success, -rte_errno otherwise:
+ * - EINVAL if invalid input params
+ */
+__rte_experimental
+int rte_gpu_comm_get_status(struct rte_gpu_comm_list *comm_list_item,
+ enum rte_gpu_comm_list_status *status);
+
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice.