From bf26414510103448ad3dc069c7422462f03ea3d7 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Fri, 26 Nov 2010 08:36:09 +0000 Subject: xps: Add CONFIG_XPS This patch adds XPS_CONFIG option to enable and disable XPS. This is done in the same manner as RPS_CONFIG. This is also fixes build failure in XPS code when SMP is not enabled. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- net/core/net-sysfs.c | 47 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 34 insertions(+), 13 deletions(-) (limited to 'net/core/net-sysfs.c') diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 68dbbfd..99c1129 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -751,10 +751,12 @@ static int rx_queue_add_kobject(struct net_device *net, int index) return error; } +#endif /* CONFIG_RPS */ int net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num) { +#ifdef CONFIG_RPS int i; int error = 0; @@ -770,8 +772,12 @@ net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num) kobject_put(&net->_rx[i].kobj); return error; +#else + return 0; +#endif } +#ifdef CONFIG_XPS /* * netdev_queue sysfs structures and functions. */ @@ -1090,10 +1096,12 @@ static int netdev_queue_add_kobject(struct net_device *net, int index) return error; } +#endif /* CONFIG_XPS */ int netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num) { +#ifdef CONFIG_XPS int i; int error = 0; @@ -1109,27 +1117,36 @@ netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num) kobject_put(&net->_tx[i].kobj); return error; +#else + return 0; +#endif } static int register_queue_kobjects(struct net_device *net) { - int error = 0, txq = 0, rxq = 0; + int error = 0, txq = 0, rxq = 0, real_rx = 0, real_tx = 0; +#if defined(CONFIG_RPS) || defined(CONFIG_XPS) net->queues_kset = kset_create_and_add("queues", NULL, &net->dev.kobj); if (!net->queues_kset) return -ENOMEM; +#endif + +#ifdef CONFIG_RPS + real_rx = net->real_num_rx_queues; +#endif + real_tx = net->real_num_tx_queues; - error = net_rx_queue_update_kobjects(net, 0, net->real_num_rx_queues); + error = net_rx_queue_update_kobjects(net, 0, real_rx); if (error) goto error; - rxq = net->real_num_rx_queues; + rxq = real_rx; - error = netdev_queue_update_kobjects(net, 0, - net->real_num_tx_queues); + error = netdev_queue_update_kobjects(net, 0, real_tx); if (error) goto error; - txq = net->real_num_tx_queues; + txq = real_tx; return 0; @@ -1141,11 +1158,19 @@ error: static void remove_queue_kobjects(struct net_device *net) { - net_rx_queue_update_kobjects(net, net->real_num_rx_queues, 0); - netdev_queue_update_kobjects(net, net->real_num_tx_queues, 0); + int real_rx = 0, real_tx = 0; + +#ifdef CONFIG_RPS + real_rx = net->real_num_rx_queues; +#endif + real_tx = net->real_num_tx_queues; + + net_rx_queue_update_kobjects(net, real_rx, 0); + netdev_queue_update_kobjects(net, real_tx, 0); +#if defined(CONFIG_RPS) || defined(CONFIG_XPS) kset_unregister(net->queues_kset); +#endif } -#endif /* CONFIG_RPS */ static const void *net_current_ns(void) { @@ -1244,9 +1269,7 @@ void netdev_unregister_kobject(struct net_device * net) kobject_get(&dev->kobj); -#ifdef CONFIG_RPS remove_queue_kobjects(net); -#endif device_del(dev); } @@ -1285,13 +1308,11 @@ int netdev_register_kobject(struct net_device *net) if (error) return error; -#ifdef CONFIG_RPS error = register_queue_kobjects(net); if (error) { device_del(dev); return error; } -#endif return error; } -- cgit v1.1