linux-kernel - [PATCH net-next] vmxnet3: Use single tx queue when CONFIG_PCI

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Message-ID: <alpine.LRH.2.00.1105091715150.26660@sbhatewara-dev1.eng.vmware.com>
Date:	Mon, 9 May 2011 17:39:30 -0700 (PDT)
From:	Shreyas Bhatewara <sbhatewara@...are.com>
To:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
cc:	pv-drivers@...are.com
Subject: [PATCH net-next] vmxnet3: Use single tx queue when CONFIG_PCI_MSI
 not defined


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: Shreyas N Bhatewara <sbhatewara@...are.com>

---

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 7a494f7..537e387 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -2890,10 +2890,12 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 #endif
 		num_rx_queues = 1;
 
+#ifdef CONFIG_PCI_MSI
 	if (enable_mq)
 		num_tx_queues = min(VMXNET3_DEVICE_MAX_TX_QUEUES,
 				    (int)num_online_cpus());
 	else
+#endif
 		num_tx_queues = 1;
 
 	netdev = alloc_etherdev_mq(sizeof(struct vmxnet3_adapter),
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 8ba7b5f..f50d36f 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/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. */
--
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