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Commit e154b639 authored by Shreyas Bhatewara's avatar Shreyas Bhatewara Committed by David S. Miller
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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: default avatarBhavesh Davda <bhavesh@vmware.com>
Signed-off-by: default avatarShreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent afd7614c

drivers/net/vmxnet3/vmxnet3_drv.c

+3 −0
Original line number Diff line number Diff line
@@ -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

+2 −2
Original line number Diff line number Diff line
@@ -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. */