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qlcnic: Optimize ring count validations 

- Check interrupt mode at the start of qlcnic_set_channels().
- Do not validate ring count if they are not going to change.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shahed Shaikh 2014-06-11 14:09:12 -04:00 committed by David S. Miller
parent 4da005cf1e
commit 18e0d62533
2 changed files with 7 additions and 12 deletions
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9
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
View File

@ -726,6 +726,11 @@ static int qlcnic_set_channels(struct net_device *dev,
struct qlcnic_adapter *adapter = netdev_priv(dev);
int err;
if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
netdev_err(dev, "No RSS/TSS support in non MSI-X mode\n");
return -EINVAL;
}
if (channel->other_count || channel->combined_count)
return -EINVAL;
@ -734,7 +739,7 @@ static int qlcnic_set_channels(struct net_device *dev,
if (err)
return err;
if (channel->rx_count) {
if (adapter->drv_sds_rings != channel->rx_count) {
err = qlcnic_validate_rings(adapter, channel->rx_count,
QLCNIC_RX_QUEUE);
if (err) {
@ -745,7 +750,7 @@ static int qlcnic_set_channels(struct net_device *dev,
adapter->drv_rss_rings = channel->rx_count;
}
if (channel->tx_count) {
if (adapter->drv_tx_rings != channel->tx_count) {
err = qlcnic_validate_rings(adapter, channel->tx_count,
QLCNIC_TX_QUEUE);
if (err) {

10
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
View File

@ -4003,16 +4003,6 @@ int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
strcpy(buf, "Tx");
}
if (!QLCNIC_IS_MSI_FAMILY(adapter)) {
netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
return -EINVAL;
}
if (adapter->flags & QLCNIC_MSI_ENABLED) {
netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
return -EINVAL;
}
if (!is_power_of_2(ring_cnt)) {
netdev_err(netdev, "%s rings value should be a power of 2\n",
buf);