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authorHaiyang Zhang <haiyangz@microsoft.com>2014-01-27 15:03:42 -0800
committerDavid S. Miller <davem@davemloft.net>2014-01-27 16:40:45 -0800
commitb679ef73edc251f6d200a7dd2396e9fef9e36fc3 (patch)
treeb04daa074ce7083d763eea8daaf4e7d88a61c320 /drivers/net/hyperv
parent731073b9c99d46c6b6c01184f67ee6f75fd7a163 (diff)
hyperv: Add support for physically discontinuous receive buffer
This will allow us to use bigger receive buffer, and prevent allocation failure due to fragmented memory. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/hyperv_net.h2
-rw-r--r--drivers/net/hyperv/netvsc.c7
2 files changed, 3 insertions, 6 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index a26eecb1212..7b594ce3f21 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -462,7 +462,7 @@ struct nvsp_message {
#define NETVSC_MTU 65536
-#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*2) /* 2MB */
+#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 93b485b9624..03a2c6e1715 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -136,8 +136,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device *net_device)
if (net_device->recv_buf) {
/* Free up the receive buffer */
- free_pages((unsigned long)net_device->recv_buf,
- get_order(net_device->recv_buf_size));
+ vfree(net_device->recv_buf);
net_device->recv_buf = NULL;
}
@@ -163,9 +162,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
return -ENODEV;
ndev = net_device->ndev;
- net_device->recv_buf =
- (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
- get_order(net_device->recv_buf_size));
+ 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);