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>

2 files changed, 7 insertions, 12 deletions

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 5bacf5210aed..1b7f3dbae289 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -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) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 1c188919cdda..4fc186713b66 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -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);