net/ice: enable switch flow on DCF

DCF on CVL is a control plane VF which take the responsibility to
configure all the PF/global resources, this patch add support DCF
on to program forward rule to direct packets to VFs.

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

doc/guides/rel_notes/release_20_05.rst

@@ -87,6 +87,7 @@ New Features
   Updated the Intel ice driver with new features and improvements, including:
 
   * Added support for DCF (Device Config Function) feature.
+  * Added switch filter support for intel DCF.
 
 * **Updated Marvell OCTEON TX2 ethdev driver.**
 

drivers/net/ice/ice_dcf_ethdev.c

@@ -115,8 +115,8 @@ ice_dcf_dev_allmulticast_disable(__rte_unused struct rte_eth_dev *dev)
 static int
 ice_dcf_dev_filter_ctrl(struct rte_eth_dev *dev,
 			enum rte_filter_type filter_type,
-			__rte_unused enum rte_filter_op filter_op,
-			__rte_unused void *arg)
+			enum rte_filter_op filter_op,
+			void *arg)
 {
 	int ret = 0;
 
@@ -124,6 +124,12 @@ ice_dcf_dev_filter_ctrl(struct rte_eth_dev *dev,
 		return -EINVAL;
 
 	switch (filter_type) {
+	case RTE_ETH_FILTER_GENERIC:
+		if (filter_op != RTE_ETH_FILTER_GET)
+			return -EINVAL;
+		*(const void **)arg = &ice_flow_ops;
+		break;
+
 	default:
 		PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
 			    filter_type);

drivers/net/ice/ice_dcf_parent.c

@@ -9,6 +9,7 @@
 #include <rte_spinlock.h>
 
 #include "ice_dcf_ethdev.h"
+#include "ice_generic_flow.h"
 
 #define ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL	100000 /* us */
 static rte_spinlock_t vsi_update_lock = RTE_SPINLOCK_INITIALIZER;
@@ -321,6 +322,12 @@ ice_dcf_init_parent_adapter(struct rte_eth_dev *eth_dev)
 	}
 	parent_adapter->active_pkg_type = ice_load_pkg_type(parent_hw);
 
+	err = ice_flow_init(parent_adapter);
+	if (err) {
+		PMD_INIT_LOG(ERR, "Failed to initialize flow");
+		goto uninit_hw;
+	}
+
 	ice_dcf_update_vf_vsi_map(parent_hw, hw->num_vfs, hw->vf_vsi_map);
 
 	mac = (const struct rte_ether_addr *)hw->avf.mac.addr;
@@ -347,5 +354,6 @@ ice_dcf_uninit_parent_adapter(struct rte_eth_dev *eth_dev)
 
 	eth_dev->data->mac_addrs = NULL;
 
+	ice_flow_uninit(parent_adapter);
 	ice_dcf_uninit_parent_hw(parent_hw);
 }

drivers/net/ice/ice_fdir_filter.c

@@ -1061,6 +1061,9 @@ ice_fdir_init(struct ice_adapter *ad)
 	struct ice_flow_parser *parser;
 	int ret;
 
+	if (ad->hw.dcf_enabled)
+		return 0;
+
 	ret = ice_fdir_setup(pf);
 	if (ret)
 		return ret;
@@ -1081,6 +1084,9 @@ ice_fdir_uninit(struct ice_adapter *ad)
 	struct ice_pf *pf = &ad->pf;
 	struct ice_flow_parser *parser;
 
+	if (ad->hw.dcf_enabled)
+		return;
+
 	if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
 		parser = &ice_fdir_parser_comms;
 	else

drivers/net/ice/ice_hash.c

@@ -243,6 +243,9 @@ ice_hash_init(struct ice_adapter *ad)
 {
 	struct ice_flow_parser *parser = NULL;
 
+	if (ad->hw.dcf_enabled)
+		return 0;
+
 	if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
 		parser = &ice_hash_parser_os;
 	else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
@@ -565,6 +568,9 @@ ice_hash_destroy(struct ice_adapter *ad,
 static void
 ice_hash_uninit(struct ice_adapter *ad)
 {
+	if (ad->hw.dcf_enabled)
+		return;
+
 	if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
 		ice_unregister_parser(&ice_hash_parser_os, ad);
 	else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)

drivers/net/ice/ice_switch_filter.c

@@ -913,6 +913,39 @@ ice_switch_inset_get(const struct rte_flow_item pattern[],
 	return 0;
 }
 
+static int
+ice_switch_parse_dcf_action(const struct rte_flow_action *actions,
+			    struct rte_flow_error *error,
+			    struct ice_adv_rule_info *rule_info)
+{
+	const struct rte_flow_action_vf *act_vf;
+	const struct rte_flow_action *action;
+	enum rte_flow_action_type action_type;
+
+	for (action = actions; action->type !=
+				RTE_FLOW_ACTION_TYPE_END; action++) {
+		action_type = action->type;
+		switch (action_type) {
+		case RTE_FLOW_ACTION_TYPE_VF:
+			rule_info->sw_act.fltr_act = ICE_FWD_TO_VSI;
+			act_vf = action->conf;
+			rule_info->sw_act.vsi_handle = act_vf->id;
+			break;
+		default:
+			rte_flow_error_set(error,
+					   EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
+					   actions,
+					   "Invalid action type or queue number");
+			return -rte_errno;
+		}
+	}
+
+	rule_info->sw_act.src = rule_info->sw_act.vsi_handle;
+	rule_info->rx = 1;
+	rule_info->priority = 5;
+
+	return 0;
+}
 
 static int
 ice_switch_parse_action(struct ice_pf *pf,
@@ -1081,7 +1114,11 @@ ice_switch_parse_pattern_action(struct ice_adapter *ad,
 		goto error;
 	}
 
+	if (ad->hw.dcf_enabled)
+		ret = ice_switch_parse_dcf_action(actions, error, &rule_info);
+	else
 		ret = ice_switch_parse_action(pf, actions, error, &rule_info);
+
 	if (ret) {
 		rte_flow_error_set(error, EINVAL,
 				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,