From: Brett Creeley <brett.creeley@intel.com>
Date: Thu, 2 Dec 2021 08:38:39 -0800
Subject: ice: Refactor spoofcheck configuration functions
Patch-mainline: v5.18-rc1
Git-commit: daf4dd16438b897a44929771c85b9512c2c20412
References: jsc#PED-376

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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_lib.c         |   19 --
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c |  159 ++++++++++++++++++-----
 2 files changed, 128 insertions(+), 50 deletions(-)

--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -1168,25 +1168,6 @@ static int ice_vsi_init(struct ice_vsi *
 				cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID);
 	}
 
-	/* enable/disable MAC and VLAN anti-spoof when spoofchk is on/off
-	 * respectively
-	 */
-	if (vsi->type == ICE_VSI_VF) {
-		ctxt->info.valid_sections |=
-			cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
-		if (pf->vf[vsi->vf_id].spoofchk) {
-			ctxt->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 {
-			ctxt->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));
-		}
-	}
-
 	/* Allow control frames out of main VSI */
 	if (vsi->type == ICE_VSI_PF) {
 		ctxt->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -838,6 +838,114 @@ static int ice_vf_rebuild_host_vlan_cfg(
 	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
@@ -1347,6 +1455,10 @@ static void ice_vf_rebuild_host_cfg(stru
 		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);
 }
@@ -1767,6 +1879,13 @@ static int ice_init_vf_vsi_res(struct ic
 		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;
@@ -2886,7 +3005,6 @@ int ice_set_vf_spoofchk(struct net_devic
 {
 	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;
@@ -2919,37 +3037,16 @@ int ice_set_vf_spoofchk(struct net_devic
 		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;
 }