[Intel-wired-lan] [PATCH net-next v2 05/12] ice: manage VSI antispoof and destination override

[Michal Swiatkowski <michal.swiatkowski@linux.intel.com>]

Implement functions to make setting VSI security config easier.
Main function ice_update_security fills security section field and
checks against error in updating VSI. Rest functions are responsible
for correct filling config according to user esceptations.

This helper is needed because destination override is located in
this section. Driver has to set this bit to allow sttering Tx packet
on VSI based on value in Tx descriptors.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
---
 drivers/net/ethernet/intel/ice/ice_lib.c | 61 ++++++++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_lib.h | 11 +++++
 2 files changed, 72 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index 274cbca8b1c4..f3414a3a5e56 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -3571,3 +3571,64 @@ int ice_set_link(struct ice_vsi *vsi, bool ena)
 
 	return 0;
 }
+
+/**
+ * ice_vsi_update_security - update security block in VSI
+ * @vsi: pointer to VSI structure
+ * @fill: function pointer to fill ctx
+ */
+int ice_vsi_update_security(struct ice_vsi *vsi,
+			    void (*fill)(struct ice_vsi_ctx *))
+{
+	struct ice_vsi_ctx ctx = { 0 };
+
+	ctx.info = vsi->info;
+	ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
+	fill(&ctx);
+
+	if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL))
+		return -ENODEV;
+
+	vsi->info = ctx.info;
+	return 0;
+}
+
+/**
+ * ice_vsi_ctx_set_antispoof - set antispoof function in VSI ctx
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx)
+{
+	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);
+}
+
+/**
+ * ice_vsi_ctx_clear_antispoof - clear antispoof function in VSI ctx
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx)
+{
+	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);
+}
+
+/**
+ * ice_vsi_ctx_set_allow_override - allow destination override on VSI
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_set_allow_override(struct ice_vsi_ctx *ctx)
+{
+	ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
+}
+
+/**
+ * ice_vsi_ctx_clear_allow_override - turn off destination override on VSI
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_clear_allow_override(struct ice_vsi_ctx *ctx)
+{
+	ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
+}
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.h b/drivers/net/ethernet/intel/ice/ice_lib.h
index cf57945ecc41..781eba6c1991 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.h
+++ b/drivers/net/ethernet/intel/ice/ice_lib.h
@@ -116,4 +116,15 @@ bool ice_is_vsi_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi);
 int ice_set_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi);
 
 int ice_clear_dflt_vsi(struct ice_sw *sw);
+
+int ice_vsi_update_security(struct ice_vsi *vsi,
+			    void (*fill)(struct ice_vsi_ctx *));
+
+void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx);
+
+void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx);
+
+void ice_vsi_ctx_set_allow_override(struct ice_vsi_ctx *ctx);
+
+void ice_vsi_ctx_clear_allow_override(struct ice_vsi_ctx *ctx);
 #endif /* !_ICE_LIB_H_ */
-- 
2.30.2