[Intel-wired-lan] [PATCH iwl-next V2 12/15] ice: mask VF advanced capabilities if live migration is activated

[Lingyu Liu <lingyu.liu@intel.com>]

Mask the advanced VF capability flags that are
not supported when VF migration is activated.

Signed-off-by: Lingyu Liu <lingyu.liu@intel.com>
Signed-off-by: Yahui Cao <yahui.cao@intel.com>
---
 .../net/ethernet/intel/ice/ice_migration.c    | 27 +++++++++++++++++++
 .../intel/ice/ice_migration_private.h         |  6 +++++
 drivers/net/ethernet/intel/ice/ice_virtchnl.c |  2 ++
 3 files changed, 35 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_migration.c b/drivers/net/ethernet/intel/ice/ice_migration.c
index c588738828ab..0bc897ab0dc2 100644
--- a/drivers/net/ethernet/intel/ice/ice_migration.c
+++ b/drivers/net/ethernet/intel/ice/ice_migration.c
@@ -748,3 +748,30 @@ void ice_migration_fix_msg_vsi(struct ice_vf *vf, u32 v_opcode, u8 *msg)
 		break;
 	}
 }
+
+#define VIRTCHNL_VF_MIGRATION_SUPPORT_FEATURE \
+				(VIRTCHNL_VF_OFFLOAD_L2 | \
+				 VIRTCHNL_VF_OFFLOAD_RSS_PF | \
+				 VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
+				 VIRTCHNL_VF_OFFLOAD_RSS_REG | \
+				 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 | \
+				 VIRTCHNL_VF_OFFLOAD_ENCAP | \
+				 VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM | \
+				 VIRTCHNL_VF_OFFLOAD_RX_POLLING | \
+				 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | \
+				 VIRTCHNL_VF_CAP_ADV_LINK_SPEED | \
+				 VIRTCHNL_VF_OFFLOAD_VLAN | \
+				 VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC | \
+				 VIRTCHNL_VF_OFFLOAD_USO)
+
+/**
+ * ice_migration_supported_caps - get migration supported VF capablities
+ *
+ * When migration is activated, some VF capabilities are not supported.
+ * So unmask those capability flags for VF resources.
+ */
+u32 ice_migration_supported_caps(void)
+{
+
+	return VIRTCHNL_VF_MIGRATION_SUPPORT_FEATURE;
+}
diff --git a/drivers/net/ethernet/intel/ice/ice_migration_private.h b/drivers/net/ethernet/intel/ice/ice_migration_private.h
index 728acfaefbdf..47ad45c2b737 100644
--- a/drivers/net/ethernet/intel/ice/ice_migration_private.h
+++ b/drivers/net/ethernet/intel/ice/ice_migration_private.h
@@ -14,12 +14,18 @@
 void ice_migration_save_vf_msg(struct ice_vf *vf,
 			       struct ice_rq_event_info *event);
 void ice_migration_fix_msg_vsi(struct ice_vf *vf, u32 v_opcode, u8 *msg);
+u32 ice_migration_supported_caps(void);
 #else
 static inline void
 ice_migration_save_vf_msg(struct ice_vf *vf,
 			  struct ice_rq_event_info *event) { }
 static inline void
 ice_migration_fix_msg_vsi(struct ice_vf *vf, u32 v_opcode, u8 *msg) { }
+static inline u32
+ice_migration_supported_caps(void)
+{
+	return 0xFFFFFFFF;
+}
 #endif /* CONFIG_ICE_VFIO_PCI */
 
 #endif /* _ICE_MIGRATION_PRIVATE_H_ */
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index e6018bf0b6a8..87d049d6ec03 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -468,6 +468,8 @@ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
 				  VIRTCHNL_VF_OFFLOAD_RSS_REG |
 				  VIRTCHNL_VF_OFFLOAD_VLAN;
 
+	if (vf->migration_active)
+		vf->driver_caps &= ice_migration_supported_caps();
 	vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
 	vsi = ice_get_vf_vsi(vf);
 	if (!vsi) {
-- 
2.25.1

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