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>
This commit is contained in:
Shreyas Bhatewara 2011-05-10 06:13:56 +00:00 committed by David S. Miller
parent afd7614c00
commit e154b639bb
2 changed files with 5 additions and 2 deletions

View File

@ -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,

View File

@ -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. */