[dpdk-stable] [PATCH] net/ipn3ke: use ctrl thread to check link status

[Xu, Rosen]

Hi,

> -----Original Message-----
> From: Pei, Andy <andy.pei at intel.com>
> Sent: Monday, March 16, 2020 14:07
> To: dev at dpdk.org
> Cc: Pei, Andy <andy.pei at intel.com>; Xu, Rosen <rosen.xu at intel.com>;
> stable at dpdk.org; david.marchand at redhat.com; Ye, Xiaolong
> <xiaolong.ye at intel.com>; Yigit, Ferruh <ferruh.yigit at intel.com>
> Subject: [PATCH] net/ipn3ke: use ctrl thread to check link status
> 
> ipn3ke driver creates a thread to check link status.
> 
> before this patch, pthread_create() is used to create thread, leaving the new
> thread unrestrained wrt cpu affinity.
> 
> After this patch, rte_ctrl_thread_create() is used to create thread. The
> affinity of the new thread is based on the CPU affinity retrieved at the time
> rte_eal_init() was called, the dataplane and service lcores are then excluded.
> 
> Fixes: 70d6b7f550f4 ("net/ipn3ke: add representor")
> Cc: rosen.xu at intel.com
> Cc: stable at dpdk.org
> 
> Signed-off-by: Andy Pei <andy.pei at intel.com>
> ---
> Cc: david.marchand at redhat.com
> Cc: xiaolong.ye at intel.com
> Cc: ferruh.yigit at intel.com
> 
> diff --git a/drivers/net/ipn3ke/ipn3ke_representor.c
> b/drivers/net/ipn3ke/ipn3ke_representor.c
> index 80122e3..b673c49 100644
> --- a/drivers/net/ipn3ke/ipn3ke_representor.c
> +++ b/drivers/net/ipn3ke/ipn3ke_representor.c
> @@ -2598,7 +2598,8 @@ struct rte_eth_xstat_name *xstats_names,
>  	int ret;
> 
>  	if (ipn3ke_rpst_scan_num == 1) {
> -		ret = pthread_create(&ipn3ke_rpst_scan_thread,
> +		ret = rte_ctrl_thread_create(&ipn3ke_rpst_scan_thread,
> +			"ipn3ke scanner",
>  			NULL,
>  			ipn3ke_rpst_scan_handle_request, NULL);
>  		if (ret) {
> --
> 1.8.3.1

Reviewed-by: Rosen Xu <rosen.xu at intel.com>