Re: [dpdk-dev] [PATCH 4/6] examples/ntb: enable an example for ntb

[Ye Xiaolong <xiaolong.ye@intel.com>]

On 06/03, Xiaoyun Li wrote:
>Enable an example for rawdev ntb. Support interactive mode to send
>file on one host and receive file from another host. The command line
>would be 'send [filepath]' and 'receive [filepath]'.
>
>But since the FIFO is not enabled right now, use rte_memcpy as the enqueue
>and dequeue functions and only support transmitting file no more than 4M.
>
>Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>

[snip]

>---
>+
>+int
>+main(int argc, char **argv)
>+{
>+	int ret, i;
>+
>+	signal(SIGINT, signal_handler);
>+	signal(SIGTERM, signal_handler);
>+
>+	ret = rte_eal_init(argc, argv);
>+	if (ret < 0)
>+		rte_exit(EXIT_FAILURE, "Error with EAL initialization.\n");
>+
>+	/* Find 1st ntb rawdev. */
>+	for (i = 0; i < RTE_RAWDEV_MAX_DEVS; i++)
>+		if (rte_rawdevs[i].driver_name &&
>+		    (strncmp(rte_rawdevs[i].driver_name, "raw_ntb", 7) == 0) &&
>+		    (rte_rawdevs[i].attached == 1))
>+			break;

Can replace above code block with rawdev API rte_rawdev_get_dev_id.

Thanks,
Xiaolong

>+
>+	if (i == RTE_RAWDEV_MAX_DEVS)
>+		rte_exit(EXIT_FAILURE, "Cannot find any ntb device.\n");
>+
>+	dev_id = i;
>+
>+	argc -= ret;
>+	argv += ret;
>+
>+	ret = parse_args(argc, argv);
>+	if (ret < 0)
>+		rte_exit(EXIT_FAILURE, "Invalid arguments\n");
>+
>+	rte_rawdev_start(dev_id);
>+
>+	if (interactive) {
>+		sleep(1);
>+		prompt();
>+	}
>+
>+	return 0;
>+}
>-- 
>2.17.1
>