struct ndis_recv_scale_cap rsscap;
u32 rsscap_size = sizeof(struct ndis_recv_scale_cap);
u32 mtu, size;
+ u32 num_rss_qs;
+ const struct cpumask *node_cpu_mask;
+ u32 num_possible_rss_qs;
rndis_device = get_rndis_device();
if (!rndis_device)
if (ret || rsscap.num_recv_que < 2)
goto out;
+ num_rss_qs = min(device_info->max_num_vrss_chns, rsscap.num_recv_que);
+
net_device->max_chn = rsscap.num_recv_que;
- net_device->num_chn = (num_online_cpus() < rsscap.num_recv_que) ?
- num_online_cpus() : rsscap.num_recv_que;
+
+ /*
+ * We will limit the VRSS channels to the number CPUs in the NUMA node
+ * the primary channel is currently bound to.
+ */
+ node_cpu_mask = cpumask_of_node(cpu_to_node(dev->channel->target_cpu));
+ num_possible_rss_qs = cpumask_weight(node_cpu_mask);
+ net_device->num_chn = min(num_possible_rss_qs, num_rss_qs);
+
if (net_device->num_chn == 1)
goto out;