diff options
Diffstat (limited to 'net/core/net-sysfs.c')
| -rw-r--r-- | net/core/net-sysfs.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 38bd9b933195..b0c04cf4851d 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -1210,29 +1210,38 @@ static ssize_t show_xps_map(struct netdev_queue *queue, struct netdev_queue_attribute *attribute, char *buf) { struct net_device *dev = queue->dev; + int cpu, len, num_tc = 1, tc = 0; struct xps_dev_maps *dev_maps; cpumask_var_t mask; unsigned long index; - int i, len; if (!zalloc_cpumask_var(&mask, GFP_KERNEL)) return -ENOMEM; index = get_netdev_queue_index(queue); + if (dev->num_tc) { + num_tc = dev->num_tc; + tc = netdev_txq_to_tc(dev, index); + if (tc < 0) + return -EINVAL; + } + rcu_read_lock(); dev_maps = rcu_dereference(dev->xps_maps); if (dev_maps) { - for_each_possible_cpu(i) { - struct xps_map *map = - rcu_dereference(dev_maps->cpu_map[i]); - if (map) { - int j; - for (j = 0; j < map->len; j++) { - if (map->queues[j] == index) { - cpumask_set_cpu(i, mask); - break; - } + for_each_possible_cpu(cpu) { + int i, tci = cpu * num_tc + tc; + struct xps_map *map; + + map = rcu_dereference(dev_maps->cpu_map[tci]); + if (!map) + continue; + + for (i = map->len; i--;) { + if (map->queues[i] == index) { + cpumask_set_cpu(cpu, mask); + break; } } } |