Function rte_pmd_mrvl_probe

dpdk/drivers/net/mvpp2/mrvl_ethdev.c:3208–3291

* DPDK callback to register the virtual device. * * @param vdev * Pointer to the virtual device. * * @return * 0 on success, negative error value otherwise. */

 *   0 on success, negative error value otherwise.
 */
static int
rte_pmd_mrvl_probe(struct rte_vdev_device *vdev)
{
	struct rte_kvargs *kvlist;
	struct mrvl_ifnames ifnames;
	int ret = -EINVAL;
	uint32_t i, ifnum, cfgnum;
	const char *params;

	params = rte_vdev_device_args(vdev);
	if (!params)
		return -EINVAL;

	kvlist = rte_kvargs_parse(params, valid_args);
	if (!kvlist)
		return -EINVAL;

	ifnum = rte_kvargs_count(kvlist, MRVL_IFACE_NAME_ARG);
	if (ifnum > RTE_DIM(ifnames.names))
		goto out_free_kvlist;

	ifnames.idx = 0;
	rte_kvargs_process(kvlist, MRVL_IFACE_NAME_ARG,
			   mrvl_get_ifnames, &ifnames);


	/*
	 * The below system initialization should be done only once,
	 * on the first provided configuration file
	 */
	if (!mrvl_cfg) {
		cfgnum = rte_kvargs_count(kvlist, MRVL_CFG_ARG);
		MRVL_LOG(INFO, "Parsing config file!");
		if (cfgnum > 1) {
			MRVL_LOG(ERR, "Cannot handle more than one config file!");
			goto out_free_kvlist;
		} else if (cfgnum == 1) {
			rte_kvargs_process(kvlist, MRVL_CFG_ARG,
					   mrvl_get_cfg, &mrvl_cfg);
		}
	}

	if (mrvl_dev_num)
		goto init_devices;

	MRVL_LOG(INFO, "Perform MUSDK initializations");

	ret = rte_mvep_init(MVEP_MOD_T_PP2, kvlist);
	if (ret)
		goto out_free_kvlist;

	ret = mrvl_init_pp2();
	if (ret) {
		MRVL_LOG(ERR, "Failed to init PP!");
		rte_mvep_deinit(MVEP_MOD_T_PP2);
		goto out_free_kvlist;
	}