ice: Refactor spoofcheck configuration functions

Add functions to configure Tx VLAN antispoof based on iproute
configuration and/or VLAN mode and VF driver support. This is needed
later so the driver can control when it can be configured. Also, add
functions that can be used to enable and disable MAC and VLAN
spoofcheck. Move spoofchk configuration during VSI setup into the
SR-IOV initialization path and into the post VSI rebuild flow for VF
VSIs.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 128 insertions, 31 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 39b80124d282..81974dbc1625 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -837,6 +837,114 @@ static int ice_vf_rebuild_host_vlan_cfg(struct ice_vf *vf)
 	return 0;
 }
 
+static int ice_cfg_vlan_antispoof(struct ice_vsi *vsi, bool enable)
+{
+	struct ice_vsi_ctx *ctx;
+	int err;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->info.sec_flags = vsi->info.sec_flags;
+	ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
+
+	if (enable)
+		ctx->info.sec_flags |= ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
+			ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S;
+	else
+		ctx->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
+					 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
+
+	err = ice_update_vsi(&vsi->back->hw, vsi->idx, ctx, NULL);
+	if (err)
+		dev_err(ice_pf_to_dev(vsi->back), "Failed to configure Tx VLAN anti-spoof %s for VSI %d, error %d\n",
+			enable ? "ON" : "OFF", vsi->vsi_num, err);
+	else
+		vsi->info.sec_flags = ctx->info.sec_flags;
+
+	kfree(ctx);
+
+	return err;
+}
+
+static int ice_cfg_mac_antispoof(struct ice_vsi *vsi, bool enable)
+{
+	struct ice_vsi_ctx *ctx;
+	int err;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->info.sec_flags = vsi->info.sec_flags;
+	ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
+
+	if (enable)
+		ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF;
+	else
+		ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF;
+
+	err = ice_update_vsi(&vsi->back->hw, vsi->idx, ctx, NULL);
+	if (err)
+		dev_err(ice_pf_to_dev(vsi->back), "Failed to configure Tx MAC anti-spoof %s for VSI %d, error %d\n",
+			enable ? "ON" : "OFF", vsi->vsi_num, err);
+	else
+		vsi->info.sec_flags = ctx->info.sec_flags;
+
+	kfree(ctx);
+
+	return err;
+}
+
+/**
+ * ice_vsi_ena_spoofchk - enable Tx spoof checking for this VSI
+ * @vsi: VSI to enable Tx spoof checking for
+ */
+static int ice_vsi_ena_spoofchk(struct ice_vsi *vsi)
+{
+	int err;
+
+	err = ice_cfg_vlan_antispoof(vsi, true);
+	if (err)
+		return err;
+
+	return ice_cfg_mac_antispoof(vsi, true);
+}
+
+/**
+ * ice_vsi_dis_spoofchk - disable Tx spoof checking for this VSI
+ * @vsi: VSI to disable Tx spoof checking for
+ */
+static int ice_vsi_dis_spoofchk(struct ice_vsi *vsi)
+{
+	int err;
+
+	err = ice_cfg_vlan_antispoof(vsi, false);
+	if (err)
+		return err;
+
+	return ice_cfg_mac_antispoof(vsi, false);
+}
+
+/**
+ * ice_vf_set_spoofchk_cfg - apply Tx spoof checking setting
+ * @vf: VF set spoofchk for
+ * @vsi: VSI associated to the VF
+ */
+static int
+ice_vf_set_spoofchk_cfg(struct ice_vf *vf, struct ice_vsi *vsi)
+{
+	int err;
+
+	if (vf->spoofchk)
+		err = ice_vsi_ena_spoofchk(vsi);
+	else
+		err = ice_vsi_dis_spoofchk(vsi);
+
+	return err;
+}
+
 /**
  * ice_vf_rebuild_host_mac_cfg - add broadcast and the VF's perm_addr/LAA
  * @vf: VF to add MAC filters for
@@ -1346,6 +1454,10 @@ static void ice_vf_rebuild_host_cfg(struct ice_vf *vf)
 		dev_err(dev, "failed to rebuild Tx rate limiting configuration for VF %u\n",
 			vf->vf_id);
 
+	if (ice_vf_set_spoofchk_cfg(vf, vsi))
+		dev_err(dev, "failed to rebuild spoofchk configuration for VF %d\n",
+			vf->vf_id);
+
 	/* rebuild aggregator node config for main VF VSI */
 	ice_vf_rebuild_aggregator_node_cfg(vsi);
 }
@@ -1760,6 +1872,13 @@ static int ice_init_vf_vsi_res(struct ice_vf *vf)
 		goto release_vsi;
 	}
 
+	err = ice_vf_set_spoofchk_cfg(vf, vsi);
+	if (err) {
+		dev_warn(dev, "Failed to initialize spoofchk setting for VF %d\n",
+			 vf->vf_id);
+		goto release_vsi;
+	}
+
 	vf->num_mac = 1;
 
 	return 0;
@@ -2892,7 +3011,6 @@ int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena)
 {
 	struct ice_netdev_priv *np = netdev_priv(netdev);
 	struct ice_pf *pf = np->vsi->back;
-	struct ice_vsi_ctx *ctx;
 	struct ice_vsi *vf_vsi;
 	struct device *dev;
 	struct ice_vf *vf;
@@ -2925,37 +3043,16 @@ int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena)
 		return 0;
 	}
 
-	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
-
-	ctx->info.sec_flags = vf_vsi->info.sec_flags;
-	ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
-	if (ena) {
-		ctx->info.sec_flags |=
-			ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
-			(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
-			 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
-	} else {
-		ctx->info.sec_flags &=
-			~(ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
-			  (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
-			   ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S));
-	}
-
-	ret = ice_update_vsi(&pf->hw, vf_vsi->idx, ctx, NULL);
-	if (ret) {
-		dev_err(dev, "Failed to %sable spoofchk on VF %d VSI %d\n error %d\n",
-			ena ? "en" : "dis", vf->vf_id, vf_vsi->vsi_num, ret);
-		goto out;
-	}
-
-	/* only update spoofchk state and VSI context on success */
-	vf_vsi->info.sec_flags = ctx->info.sec_flags;
-	vf->spoofchk = ena;
+	if (ena)
+		ret = ice_vsi_ena_spoofchk(vf_vsi);
+	else
+		ret = ice_vsi_dis_spoofchk(vf_vsi);
+	if (ret)
+		dev_err(dev, "Failed to set spoofchk %s for VF %d VSI %d\n error %d\n",
+			ena ? "ON" : "OFF", vf->vf_id, vf_vsi->vsi_num, ret);
+	else
+		vf->spoofchk = ena;
 
-out:
-	kfree(ctx);
 	return ret;
 }