3 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 2a87cfa27ac0..7ea6936f86ef 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -860,9 +860,12 @@ static inline u32 netvsc_rqstor_size(unsigned long ringbytes)
 		ringbytes / NETVSC_MIN_IN_MSG_SIZE;
 }
 
+#define NETVSC_MAX_XFER_PAGE_RANGES 375
 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
 		(offsetof(struct vmtransfer_page_packet_header, ranges) + \
 		(rng_cnt) * sizeof(struct vmtransfer_page_range))
+#define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \
+		sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE))
 
 struct multi_send_data {
 	struct sk_buff *skb; /* skb containing the pkt */
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 2350342b961f..1510a236aa34 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1530,6 +1530,8 @@ struct netvsc_device *netvsc_device_add(struct hv_device *device,
 
 	/* Open the channel */
 	device->channel->rqstor_size = netvsc_rqstor_size(netvsc_ring_bytes);
+	device->channel->max_pkt_size = NETVSC_MAX_PKT_SIZE;
+
 	ret = vmbus_open(device->channel, netvsc_ring_bytes,
 			 netvsc_ring_bytes,  NULL, 0,
 			 netvsc_channel_cb, net_device->chan_table);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 598713c0d5a8..7e6dee2f02a4 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1174,6 +1174,8 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
 	nvchan->channel = new_sc;
 
 	new_sc->rqstor_size = netvsc_rqstor_size(netvsc_ring_bytes);
+	new_sc->max_pkt_size = NETVSC_MAX_PKT_SIZE;
+
 	ret = vmbus_open(new_sc, netvsc_ring_bytes,
 			 netvsc_ring_bytes, NULL, 0,
 			 netvsc_channel_cb, nvchan);