Linux is free to call ethtool ops as soon as a netdev exists when probe
finishes. However, we only allocate vmxnet3 tx/rx queues and initialize the
rx_buf_per_pkt field in struct vmxnet3_adapter when the interface is
opened (UP).

Signed-off-by: Bhavesh Davda <bhav...@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatew...@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_drv.c     |    3 ++-
 drivers/net/vmxnet3/vmxnet3_ethtool.c |    6 ++++++
 drivers/net/vmxnet3/vmxnet3_int.h     |    4 ++--
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c 
b/drivers/net/vmxnet3/vmxnet3_drv.c
index 4aad350..bfc5898 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -2922,7 +2922,7 @@ vmxnet3_probe_device(struct pci_dev *pdev,
                                    (int)num_online_cpus());
        else
 #endif
-               num_rx_queues = 1;
+       num_rx_queues = 1;
        num_rx_queues = rounddown_pow_of_two(num_rx_queues);
 
        if (enable_mq)
@@ -2958,6 +2958,7 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 
        adapter->num_rx_queues = num_rx_queues;
        adapter->num_tx_queues = num_tx_queues;
+       adapter->rx_buf_per_pkt = 1;
 
        size = sizeof(struct Vmxnet3_TxQueueDesc) * adapter->num_tx_queues;
        size += sizeof(struct Vmxnet3_RxQueueDesc) * adapter->num_rx_queues;
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c 
b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index a0feb17..0a4fc9e 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -472,6 +472,12 @@ vmxnet3_set_ringparam(struct net_device *netdev,
                                                VMXNET3_RX_RING_MAX_SIZE)
                return -EINVAL;
 
+       /* if adapter not yet initialized, do nothing */
+       if (adapter->rx_buf_per_pkt == 0) {
+               netdev_info(netdev,
+                               "adapter not completely initialized, ring size 
cannot be changed yet\n");
+               return -EOPNOTSUPP;
+       }
 
        /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
        new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h 
b/drivers/net/vmxnet3/vmxnet3_int.h
index 3198384..3541814 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -70,10 +70,10 @@
 /*
  * Version numbers
  */
-#define VMXNET3_DRIVER_VERSION_STRING   "1.1.29.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING   "1.1.30.0-k"
 
 /* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
-#define VMXNET3_DRIVER_VERSION_NUM      0x01011D00
+#define VMXNET3_DRIVER_VERSION_NUM      0x01011E00
 
 #if defined(CONFIG_PCI_MSI)
        /* RSS only makes sense if MSI-X is supported. */
-- 
1.7.1

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