On 10/09/15 11:18, Wei Liu wrote:
> Originally that parameter was always reset to num_online_cpus during
> module initialisation, which renders it useless.
>
> The fix is to only set max_queues to num_online_cpus when user has not
> provided a value.
Reviewed-by: David Vrabel <david.vra...@citrix.com>
Tested-by: David Vrabel <david.vra...@citrix.com>
David
> --- a/drivers/net/xen-netfront.c
> +++ b/drivers/net/xen-netfront.c
> @@ -2132,8 +2132,11 @@ static int __init netif_init(void)
>
> pr_info("Initialising Xen virtual ethernet driver\n");
>
> - /* Allow as many queues as there are CPUs, by default */
> - xennet_max_queues = num_online_cpus();
> + /* Allow as many queues as there are CPUs if user has not
> + * specified a value.
> + */
> + if (xennet_max_queues == 0)
> + xennet_max_queues = num_online_cpus();
>
> return xenbus_register_frontend(&netfront_driver);
> }
>
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