vmxnet3: increase maximum configurable mtu to 9190

This patch increases the maximum configurable mtu to 9190
to accommodate jumbo packets of overlay traffic.

Signed-off-by: Ronak Doshi <doshir@vmware.com>
Acked-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index bc82bbb..74d4e8b 100644 (file)
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -795,6 +795,7 @@ struct Vmxnet3_DriverShared {
        ((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
 
 #define VMXNET3_MAX_MTU     9000
+#define VMXNET3_V6_MAX_MTU  9190
 #define VMXNET3_MIN_MTU     60
 
 #define VMXNET3_LINK_UP         (10000 << 16 | 1)    /* 10 Gbps, up */

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 4fd6ce1..9f52f9c 100644 (file)
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3641,9 +3641,12 @@ vmxnet3_probe_device(struct pci_dev *pdev,
        vmxnet3_set_ethtool_ops(netdev);
        netdev->watchdog_timeo = 5 * HZ;
 
-       /* MTU range: 60 - 9000 */
+       /* MTU range: 60 - 9190 */
        netdev->min_mtu = VMXNET3_MIN_MTU;
-       netdev->max_mtu = VMXNET3_MAX_MTU;
+       if (VMXNET3_VERSION_GE_6(adapter))
+               netdev->max_mtu = VMXNET3_V6_MAX_MTU;
+       else
+               netdev->max_mtu = VMXNET3_MAX_MTU;
 
        INIT_WORK(&adapter->work, vmxnet3_reset_work);
        set_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state);