diff options
| author | Shreyas Bhatewara <sbhatewara@vmware.com> | 2011-07-07 07:25:52 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-07 07:25:52 (GMT) |
| commit | eebb02b1f03b3722d678bfcb560f3b26661ab0d2 (patch) | |
| tree | 6a133a4faa1278c2faf93962c19269f93b076edc /drivers/net/vmxnet3/vmxnet3_drv.c | |
| parent | 2e98e7974de208de0dab9e9969bd47576d07ff10 (diff) | |
| download | linux-eebb02b1f03b3722d678bfcb560f3b26661ab0d2.tar.xz | |
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>
Diffstat (limited to 'drivers/net/vmxnet3/vmxnet3_drv.c')
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_drv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 45a23b2..6740235 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); |