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Subject[PATCH 1/1] Drivers: net-next: hyperv: Increase the size of the sendbuf region
Date
For forwarding scenarios, it will be useful to allocate larger
sendbuf. Make the necessary adjustments to permit this.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
drivers/net/hyperv/hyperv_net.h | 2 +-
drivers/net/hyperv/netvsc.c | 7 ++-----
2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 6cc37c1..40ba1ef 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -584,7 +584,7 @@ struct nvsp_message {

#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */
-#define NETVSC_SEND_BUFFER_SIZE (1024 * 1024) /* 1MB */
+#define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 16) /* 16MB */
#define NETVSC_INVALID_INDEX -1


diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index c041f63..c76178e 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -193,8 +193,7 @@ static int netvsc_destroy_buf(struct netvsc_device *net_device)
}
if (net_device->send_buf) {
/* Free up the receive buffer */
- free_pages((unsigned long)net_device->send_buf,
- get_order(net_device->send_buf_size));
+ vfree(net_device->send_buf);
net_device->send_buf = NULL;
}
kfree(net_device->send_section_map);
@@ -303,9 +302,7 @@ static int netvsc_init_buf(struct hv_device *device)

/* Now setup the send buffer.
*/
- net_device->send_buf =
- (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
- get_order(net_device->send_buf_size));
+ 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


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