When the buffer is too small for a packet from VMBus, a bigger buffer will be
allocated in netvsc_channel_cb() and retry reading the packet from VMBus.
Increasing this buffer size will reduce the retry overhead.
Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Reviewed-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
---
drivers/net/hyperv/hyperv_net.h | 2 +-
drivers/net/hyperv/netvsc.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index d5e07de..b14a0ef 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -591,7 +591,7 @@ struct nvsp_message {
#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
-#define NETVSC_PACKET_SIZE 2048
+#define NETVSC_PACKET_SIZE 4096
#define VRSS_SEND_TAB_SIZE 16
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 66979cf..45899f2 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -38,7 +38,7 @@ static struct netvsc_device *alloc_net_device(struct hv_device *device)
struct netvsc_device *net_device;
struct net_device *ndev = hv_get_drvdata(device);
- net_device = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL);
+ net_device = vzalloc(sizeof(*net_device));
if (!net_device)
return NULL;
@@ -551,7 +551,7 @@ int netvsc_device_remove(struct hv_device *device)
if (net_device->sub_cb_buf)
vfree(net_device->sub_cb_buf);
- kfree(net_device);
+ vfree(net_device);
return 0;
}
@@ -1093,7 +1093,7 @@ close:
vmbus_close(device->channel);
cleanup:
- kfree(net_device);
+ vfree(net_device);
return ret;
}
--
1.7.1
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