net: thunderx: take into account xdp_features setting tx/rx queues

thunderx nic allows xdp just if enough hw queues are available for XDP.
Take into account queues configuration setting xdp_features.

Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
index e5c71f9..d8d71bf 100644 (file)
--- a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
@@ -735,12 +735,17 @@ static int nicvf_set_channels(struct net_device *dev,
        if (channel->tx_count > nic->max_queues)
                return -EINVAL;
 
-       if (nic->xdp_prog &&
-           ((channel->tx_count + channel->rx_count) > nic->max_queues)) {
-               netdev_err(nic->netdev,
-                          "XDP mode, RXQs + TXQs > Max %d\n",
-                          nic->max_queues);
-               return -EINVAL;
+       if (channel->tx_count + channel->rx_count > nic->max_queues) {
+               if (nic->xdp_prog) {
+                       netdev_err(nic->netdev,
+                                  "XDP mode, RXQs + TXQs > Max %d\n",
+                                  nic->max_queues);
+                       return -EINVAL;
+               }
+
+               xdp_clear_features_flag(nic->netdev);
+       } else if (!pass1_silicon(nic->pdev)) {
+               xdp_set_features_flag(dev, NETDEV_XDP_ACT_BASIC);
        }
 
        if (if_up)

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index 8b25313..eff350e 100644 (file)
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -2218,7 +2218,9 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        netdev->netdev_ops = &nicvf_netdev_ops;
        netdev->watchdog_timeo = NICVF_TX_TIMEOUT;
 
-       netdev->xdp_features = NETDEV_XDP_ACT_BASIC;
+       if (!pass1_silicon(nic->pdev) &&
+           nic->rx_queues + nic->tx_queues <= nic->max_queues)
+               netdev->xdp_features = NETDEV_XDP_ACT_BASIC;
 
        /* MTU range: 64 - 9200 */
        netdev->min_mtu = NIC_HW_MIN_FRS;