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| author | Shreyas Bhatewara <sbhatewara@vmware.com> | 2011-07-07 00:25:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-07 00:25:52 -0700 |
| commit | eebb02b1f03b3722d678bfcb560f3b26661ab0d2 (patch) | |
| tree | 6a133a4faa1278c2faf93962c19269f93b076edc | |
| parent | 2e98e7974de208de0dab9e9969bd47576d07ff10 (diff) | |
| download | linux-3.10-eebb02b1f03b3722d678bfcb560f3b26661ab0d2.tar.gz linux-3.10-eebb02b1f03b3722d678bfcb560f3b26661ab0d2.tar.bz2 linux-3.10-eebb02b1f03b3722d678bfcb560f3b26661ab0d2.zip | |
vmxnet3: round down # of queues to power of two
vmxnet3 device supports only power-of-two number of queues. The driver
therefore needs to check this and rounds down the number of queues to the
nearest power of two.
Signed-off-by: Yong Wang <yongwang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Reviewed-by: Dmitry Torokhov <dtor@vmware.com>
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_drv.c | 3 | ||||
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_int.h | 5 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 45a23b2599f..67402350d0d 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -2947,6 +2947,7 @@ vmxnet3_probe_device(struct pci_dev *pdev, else #endif num_rx_queues = 1; + num_rx_queues = rounddown_pow_of_two(num_rx_queues); if (enable_mq) num_tx_queues = min(VMXNET3_DEVICE_MAX_TX_QUEUES, @@ -2954,6 +2955,7 @@ vmxnet3_probe_device(struct pci_dev *pdev, else num_tx_queues = 1; + num_tx_queues = rounddown_pow_of_two(num_tx_queues); netdev = alloc_etherdev_mq(sizeof(struct vmxnet3_adapter), max(num_tx_queues, num_rx_queues)); printk(KERN_INFO "# of Tx queues : %d, # of Rx queues : %d\n", @@ -3138,6 +3140,7 @@ vmxnet3_remove_device(struct pci_dev *pdev) else #endif num_rx_queues = 1; + num_rx_queues = rounddown_pow_of_two(num_rx_queues); cancel_work_sync(&adapter->work); diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h index 8db7ecf5bca..e08d75e3f17 100644 --- a/drivers/net/vmxnet3/vmxnet3_int.h +++ b/drivers/net/vmxnet3/vmxnet3_int.h @@ -55,6 +55,7 @@ #include <linux/if_vlan.h> #include <linux/if_arp.h> #include <linux/inetdevice.h> +#include <linux/log2.h> #include "vmxnet3_defs.h" @@ -68,10 +69,10 @@ /* * Version numbers */ -#define VMXNET3_DRIVER_VERSION_STRING "1.1.14.0-k" +#define VMXNET3_DRIVER_VERSION_STRING "1.1.18.0-k" /* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */ -#define VMXNET3_DRIVER_VERSION_NUM 0x01010E00 +#define VMXNET3_DRIVER_VERSION_NUM 0x01011200 #if defined(CONFIG_PCI_MSI) /* RSS only makes sense if MSI-X is supported. */ |