Commit aa57c62d authored Sep 10, 2015 by Wei Liu Committed by Sasha Levin Feb 15, 2016

xen-netfront: respect user provided max_queues



[ Upstream commit 32a844056fd43dda647e1c3c6b9983bdfa04d17d ]

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.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Tested-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

parent 1ed33008

drivers/net/xen-netfront.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -2351,7 +2351,10 @@ static int __init netif_init(void)

		pr_info("Initialising Xen virtual ethernet driver\n");

		/* Allow as many queues as there are CPUs, by default */
		/* 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);