Merge branch 'hv_netvsc-next'
authorDavid S. Miller <davem@davemloft.net>
Sun, 31 May 2015 07:23:11 +0000 (00:23 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 31 May 2015 07:23:11 +0000 (00:23 -0700)
K. Y. Srinivasan says:

====================
hv_netvsc: Implement NUMA aware memory allocation

Allocate both receive buffer and send buffer from the NUMA node assigned to the
primary channel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/hyperv/netvsc.c

index b0249685139cc7b56840e50cdf8f5c569c59c54f..06de98a056228261a9df982421c4137827dfda01 100644 (file)
@@ -227,13 +227,18 @@ static int netvsc_init_buf(struct hv_device *device)
        struct netvsc_device *net_device;
        struct nvsp_message *init_packet;
        struct net_device *ndev;
+       int node;
 
        net_device = get_outbound_net_device(device);
        if (!net_device)
                return -ENODEV;
        ndev = net_device->ndev;
 
-       net_device->recv_buf = vzalloc(net_device->recv_buf_size);
+       node = cpu_to_node(device->channel->target_cpu);
+       net_device->recv_buf = vzalloc_node(net_device->recv_buf_size, node);
+       if (!net_device->recv_buf)
+               net_device->recv_buf = vzalloc(net_device->recv_buf_size);
+
        if (!net_device->recv_buf) {
                netdev_err(ndev, "unable to allocate receive "
                        "buffer of size %d\n", net_device->recv_buf_size);
@@ -321,7 +326,9 @@ static int netvsc_init_buf(struct hv_device *device)
 
        /* Now setup the send buffer.
         */
-       net_device->send_buf = vzalloc(net_device->send_buf_size);
+       net_device->send_buf = vzalloc_node(net_device->send_buf_size, node);
+       if (!net_device->send_buf)
+               net_device->send_buf = vzalloc(net_device->send_buf_size);
        if (!net_device->send_buf) {
                netdev_err(ndev, "unable to allocate send "
                           "buffer of size %d\n", net_device->send_buf_size);