netdev - [PATCH v2 net-next] ice: update xdp

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Date:   Tue, 14 Feb 2023 15:39:27 +0100
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     netdev@...r.kernel.org
Cc:     jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, intel-wired-lan@...ts.osuosl.org,
        lorenzo.bianconi@...hat.com
Subject: [PATCH v2 net-next] ice: update xdp_features with xdp multi-buff

Now ice driver supports xdp multi-buffer so add it to xdp_features.
Check vsi type before setting xdp_features flag.

Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
Changes since v1:
- rebase on top of net-next
- check vsi type before setting xdp_features flag
---
 drivers/net/ethernet/intel/ice/ice_main.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 0712c1055aea..4994a0e5a668 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -2912,7 +2912,7 @@ ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
 			if (xdp_ring_err)
 				NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Tx resources failed");
 		}
-		xdp_features_set_redirect_target(vsi->netdev, false);
+		xdp_features_set_redirect_target(vsi->netdev, true);
 		/* reallocate Rx queues that are used for zero-copy */
 		xdp_ring_err = ice_realloc_zc_buf(vsi, true);
 		if (xdp_ring_err)
@@ -3333,10 +3333,11 @@ static void ice_napi_add(struct ice_vsi *vsi)
 
 /**
  * ice_set_ops - set netdev and ethtools ops for the given netdev
- * @netdev: netdev instance
+ * @vsi: the VSI associated with the new netdev
  */
-static void ice_set_ops(struct net_device *netdev)
+static void ice_set_ops(struct ice_vsi *vsi)
 {
+	struct net_device *netdev = vsi->netdev;
 	struct ice_pf *pf = ice_netdev_to_pf(netdev);
 
 	if (ice_is_safe_mode(pf)) {
@@ -3348,6 +3349,13 @@ static void ice_set_ops(struct net_device *netdev)
 	netdev->netdev_ops = &ice_netdev_ops;
 	netdev->udp_tunnel_nic_info = &pf->hw.udp_tunnel_nic;
 	ice_set_ethtool_ops(netdev);
+
+	if (vsi->type != ICE_VSI_PF)
+		return;
+
+	netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+			       NETDEV_XDP_ACT_XSK_ZEROCOPY |
+			       NETDEV_XDP_ACT_RX_SG;
 }
 
 /**
@@ -4568,9 +4576,7 @@ static int ice_cfg_netdev(struct ice_vsi *vsi)
 	np->vsi = vsi;
 
 	ice_set_netdev_features(netdev);
-	netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
-			       NETDEV_XDP_ACT_XSK_ZEROCOPY;
-	ice_set_ops(netdev);
+	ice_set_ops(vsi);
 
 	if (vsi->type == ICE_VSI_PF) {
 		SET_NETDEV_DEV(netdev, ice_pf_to_dev(vsi->back));
-- 
2.39.1