net/core/dev.c

2679 static bool remove_xps_queue(struct xps_dev_maps *dev_maps,
2685 	map = xmap_dereference(dev_maps->attr_map[tci]);
2700 		RCU_INIT_POINTER(dev_maps->attr_map[tci], NULL);
2709 				 struct xps_dev_maps *dev_maps,
2712 	int num_tc = dev_maps->num_tc;
2720 			if (!remove_xps_queue(dev_maps, NULL, tci, j))
2731 			   struct xps_dev_maps *dev_maps,
2740 	kfree_rcu(dev_maps, rcu);
2746 	struct xps_dev_maps *dev_maps;
2750 	dev_maps = xmap_dereference(dev->xps_maps[type]);
2751 	if (!dev_maps)
2754 	for (j = 0; j < dev_maps->nr_ids; j++)
2755 		active |= remove_xps_queue_cpu(dev, dev_maps, j, offset, count);
2757 		reset_xps_maps(dev, dev_maps, type);
2830 static void xps_copy_dev_maps(struct xps_dev_maps *dev_maps,
2834 	int i, tci = index * dev_maps->num_tc;
2838 	for (i = 0; i < dev_maps->num_tc; i++, tci++) {
2843 		map = xmap_dereference(dev_maps->attr_map[tci]);
2852 	struct xps_dev_maps *dev_maps, *new_dev_maps = NULL, *old_dev_maps = NULL;
2878 	dev_maps = xmap_dereference(dev->xps_maps[type]);
2892 	/* The old dev_maps could be larger or smaller than the one we're
2897 	if (dev_maps &&
2898 	    dev_maps->num_tc == num_tc && dev_maps->nr_ids == nr_ids)
2916 		map = copy ? xmap_dereference(dev_maps->attr_map[tci]) : NULL;
2928 	if (!dev_maps) {
2963 			xps_copy_dev_maps(dev_maps, new_dev_maps, j, tc,
2970 	if (!dev_maps)
2973 	for (j = 0; j < dev_maps->nr_ids; j++) {
2974 		for (i = num_tc, tci = j * dev_maps->num_tc; i--; tci++) {
2975 			map = xmap_dereference(dev_maps->attr_map[tci]);
2985 			RCU_INIT_POINTER(dev_maps->attr_map[tci], NULL);
2990 	old_dev_maps = dev_maps;
2993 	dev_maps = new_dev_maps;
3003 	if (!dev_maps)
3007 	for (j = 0; j < dev_maps->nr_ids; j++) {
3008 		tci = j * dev_maps->num_tc;
3010 		for (i = 0; i < dev_maps->num_tc; i++, tci++) {
3012 			    netif_attr_test_mask(j, mask, dev_maps->nr_ids) &&
3013 			    netif_attr_test_online(j, online_mask, dev_maps->nr_ids))
3016 			active |= remove_xps_queue(dev_maps,
3027 		reset_xps_maps(dev, dev_maps, type);
3039 			      xmap_dereference(dev_maps->attr_map[tci]) :
4584 			       struct xps_dev_maps *dev_maps, unsigned int tci)
4590 	if (tc >= dev_maps->num_tc || tci >= dev_maps->nr_ids)
4593 	tci *= dev_maps->num_tc;
4596 	map = rcu_dereference(dev_maps->attr_map[tci]);
4614 	struct xps_dev_maps *dev_maps;
4625 	dev_maps = rcu_dereference(sb_dev->xps_maps[XPS_RXQS]);
4626 	if (dev_maps) {
4630 			queue_index = __get_xps_queue_idx(dev, skb, dev_maps,
4636 		dev_maps = rcu_dereference(sb_dev->xps_maps[XPS_CPUS]);
4637 		if (dev_maps) {
4640 			queue_index = __get_xps_queue_idx(dev, skb, dev_maps,