[dpdk-dev] [PATCH 2/2] examples/ethtool: add closing port operation

[Thomas Monjalon]

20/04/2021 11:10, Min Hu (Connor):
> 
> 在 2021/4/20 8:59, Thomas Monjalon 写道:
> > 08/04/2021 12:14, Min Hu (Connor):
> >> From: Huisong Li <lihuisong at huawei.com>
> >>
> >> Currently, ethtool directly ends the process after 'quit' cmd. In this
> >> case, software resources are not released and hardware resources of the
> >> device are not uninstalled.
> >>
> >> This patch adds closing port operation to release resources.
> >>
> >> Fixes: bda68ab9d1e7 ("examples/ethtool: add user-space ethtool sample application")
> >> Cc: stable at dpdk.org
> >>
> >> Signed-off-by: Huisong Li <lihuisong at huawei.com>
> >> Signed-off-by: Min Hu (Connor) <humin29 at huawei.com>
> >> ---
> >> --- a/examples/ethtool/ethtool-app/main.c
> >> +++ b/examples/ethtool/ethtool-app/main.c
> >> +static void close_ports(void)
> >> +{
> >> +	uint16_t portid;
> >> +	int ret;
> >> +
> >> +	for (portid = 0; portid < app_cfg.cnt_ports; portid++) {
> >> +		printf("Closing port %d...", portid);
> >> +		ret = rte_eth_dev_stop(portid);
> >> +		if (ret != 0)
> >> +			rte_exit(EXIT_FAILURE, "rte_eth_dev_stop: err=%s, port=%u\n",
> >> +				 strerror(-ret), portid);
> >> +		rte_eth_dev_close(portid);
> >> +		printf(" Done\n");
> >> +	}
> >> +
> >> +	ret = rte_eal_cleanup();
> >> +	if (ret != 0)
> >> +		rte_exit(EXIT_FAILURE, "EAL cleanup failed: %s\n",
> >> +			 strerror(-ret));
> > 
> > It would be better to add EAL cleanup in the main function.
> > 
> Hi, Thomas,
> 	It has already been done in this patch: "examples: add eal
> cleanup to examples", please check it out, thanks.

So why adding it in this patch about ethdev close?