vmxnet3: Use single tx queue when CONFIG_PCI_MSI not defined

Resending this patch with few changes.

Avoid multiple queues when MSI or MSI-X not available

Limit number of Tx queues to 1 if MSI/MSI-X support is not configured in
the kernel. This will make number of tx and rx queues equal when MSI/X
is not configured thus providing better performance.

Signed-off-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/vmxnet3/vmxnet3_drv.c

@@ -2884,6 +2884,9 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	int num_tx_queues;
 	int num_rx_queues;
 
+	if (!pci_msi_enabled())
+		enable_mq = 0;
+
 #ifdef VMXNET3_RSS
 	if (enable_mq)
 		num_rx_queues = min(VMXNET3_DEVICE_MAX_RX_QUEUES,

drivers/net/vmxnet3/vmxnet3_int.h

@@ -68,10 +68,10 @@
 /*
  * Version numbers
  */
-#define VMXNET3_DRIVER_VERSION_STRING   "1.0.25.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING   "1.1.9.0-k"
 
 /* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
-#define VMXNET3_DRIVER_VERSION_NUM      0x01001900
+#define VMXNET3_DRIVER_VERSION_NUM      0x01010900
 
 #if defined(CONFIG_PCI_MSI)
 	/* RSS only makes sense if MSI-X is supported. */