[PATCH net-next 0/2] hv_netvsc: Implement NUMA aware memory allocation

[PATCH net-next 0/2] hv_netvsc: Implement NUMA aware memory allocation

[K. Y. Srinivasan]

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

K. Y. Srinivasan (2):
  hv_netvsc: Allocate the receive buffer from the correct NUMA node
  hv_netvsc: Allocate the sendbuf in a NUMA aware way

 drivers/net/hyperv/netvsc.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

-- 
1.7.4.1

[PATCH V2 net-next 1/2] hv_netvsc: Allocate the receive buffer from the correct NUMA node

[K. Y. Srinivasan]

Allocate the receive bufer from the NUMA node assigned to the primary
channel.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
	V2: Specify the tree for this patch.

 drivers/net/hyperv/netvsc.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index b024968..d187965 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -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);
-- 
1.7.4.1

[PATCH net-next 2/2] hv_netvsc: Allocate the sendbuf in a NUMA aware way

[K. Y. Srinivasan]

Allocate the send buffer in a NUMA aware way.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
 drivers/net/hyperv/netvsc.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index d187965..06de98a 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -326,7 +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);
-- 
1.7.4.1

Re: [PATCH net-next 0/2] hv_netvsc: Implement NUMA aware memory allocation

[David Miller]

From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Thu, 28 May 2015 17:07:44 -0700

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

Series applied, thanks.