Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/nex

t-queue

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2022-06-30

This series contains updates to ice driver only.

Martyna adds support for VLAN related TC switchdev filters and reworks
dummy packet implementation of VLANs to enable dynamic header insertion to
allow for more rule types.

Lu Wei utilizes eth_broadcast_addr() helper over an open coded version.

Ziyang Xuan removes unneeded NULL checks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/ice/ice_lag.c

@@ -447,11 +447,9 @@ void ice_deinit_lag(struct ice_pf *pf)
 	if (lag->pf)
 		ice_unregister_lag_handler(lag);
 
-	if (lag->upper_netdev)
-		dev_put(lag->upper_netdev);
+	dev_put(lag->upper_netdev);
 
-	if (lag->peer_netdev)
-		dev_put(lag->peer_netdev);
+	dev_put(lag->peer_netdev);
 
 	kfree(lag);
 

drivers/net/ethernet/intel/ice/ice_protocol_type.h

@@ -43,6 +43,8 @@ enum ice_protocol_type {
 	ICE_NVGRE,
 	ICE_GTP,
 	ICE_GTP_NO_PAY,
+	ICE_VLAN_EX,
+	ICE_VLAN_IN,
 	ICE_VXLAN_GPE,
 	ICE_SCTP_IL,
 	ICE_PROTOCOL_LAST
@@ -109,13 +111,18 @@ enum ice_prot_id {
 #define ICE_GRE_OF_HW		64
 
 #define ICE_UDP_OF_HW	52 /* UDP Tunnels */
-#define ICE_META_DATA_ID_HW 255 /* this is used for tunnel type */
+#define ICE_META_DATA_ID_HW 255 /* this is used for tunnel and VLAN type */
 
 #define ICE_MDID_SIZE 2
+
 #define ICE_TUN_FLAG_MDID 21
 #define ICE_TUN_FLAG_MDID_OFF (ICE_MDID_SIZE * ICE_TUN_FLAG_MDID)
 #define ICE_TUN_FLAG_MASK 0xFF
 
+#define ICE_VLAN_FLAG_MDID 20
+#define ICE_VLAN_FLAG_MDID_OFF (ICE_MDID_SIZE * ICE_VLAN_FLAG_MDID)
+#define ICE_PKT_FLAGS_0_TO_15_VLAN_FLAGS_MASK 0xD000
+
 #define ICE_TUN_FLAG_FV_IND 2
 
 /* Mapping of software defined protocol ID to hardware defined protocol ID */

drivers/net/ethernet/intel/ice/ice_switch.h

@@ -192,6 +192,7 @@ struct ice_adv_rule_info {
 	u32 priority;
 	u8 rx; /* true means LOOKUP_RX otherwise LOOKUP_TX */
 	u16 fltr_rule_id;
+	u16 vlan_type;
 	struct ice_adv_rule_flags_info flags_info;
 };
 

drivers/net/ethernet/intel/ice/ice_tc_lib.c

@@ -50,6 +50,10 @@ ice_tc_count_lkups(u32 flags, struct ice_tc_flower_lyr_2_4_hdrs *headers,
 	if (flags & ICE_TC_FLWR_FIELD_VLAN)
 		lkups_cnt++;
 
+	/* is CVLAN specified? */
+	if (flags & ICE_TC_FLWR_FIELD_CVLAN)
+		lkups_cnt++;
+
 	/* are IPv[4|6] fields specified? */
 	if (flags & (ICE_TC_FLWR_FIELD_DEST_IPV4 | ICE_TC_FLWR_FIELD_SRC_IPV4 |
 		     ICE_TC_FLWR_FIELD_DEST_IPV6 | ICE_TC_FLWR_FIELD_SRC_IPV6))
@@ -134,6 +138,18 @@ ice_sw_type_from_tunnel(enum ice_tunnel_type type)
 	}
 }
 
+static u16 ice_check_supported_vlan_tpid(u16 vlan_tpid)
+{
+	switch (vlan_tpid) {
+	case ETH_P_8021Q:
+	case ETH_P_8021AD:
+	case ETH_P_QINQ1:
+		return vlan_tpid;
+	default:
+		return 0;
+	}
+}
+
 static int
 ice_tc_fill_tunnel_outer(u32 flags, struct ice_tc_flower_fltr *fltr,
 			 struct ice_adv_lkup_elem *list)
@@ -269,8 +285,11 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags,
 {
 	struct ice_tc_flower_lyr_2_4_hdrs *headers = &tc_fltr->outer_headers;
 	bool inner = false;
+	u16 vlan_tpid = 0;
 	int i = 0;
 
+	rule_info->vlan_type = vlan_tpid;
+
 	rule_info->tun_type = ice_sw_type_from_tunnel(tc_fltr->tunnel_type);
 	if (tc_fltr->tunnel_type != TNL_LAST) {
 		i = ice_tc_fill_tunnel_outer(flags, tc_fltr, list);
@@ -311,12 +330,26 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags,
 
 	/* copy VLAN info */
 	if (flags & ICE_TC_FLWR_FIELD_VLAN) {
-		list[i].type = ICE_VLAN_OFOS;
+		vlan_tpid = be16_to_cpu(headers->vlan_hdr.vlan_tpid);
+		rule_info->vlan_type =
+				ice_check_supported_vlan_tpid(vlan_tpid);
+
+		if (flags & ICE_TC_FLWR_FIELD_CVLAN)
+			list[i].type = ICE_VLAN_EX;
+		else
+			list[i].type = ICE_VLAN_OFOS;
 		list[i].h_u.vlan_hdr.vlan = headers->vlan_hdr.vlan_id;
 		list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0xFFFF);
 		i++;
 	}
 
+	if (flags & ICE_TC_FLWR_FIELD_CVLAN) {
+		list[i].type = ICE_VLAN_IN;
+		list[i].h_u.vlan_hdr.vlan = headers->cvlan_hdr.vlan_id;
+		list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0xFFFF);
+		i++;
+	}
+
 	/* copy L3 (IPv[4|6]: src, dest) address */
 	if (flags & (ICE_TC_FLWR_FIELD_DEST_IPV4 |
 		     ICE_TC_FLWR_FIELD_SRC_IPV4)) {
@@ -945,6 +978,7 @@ ice_parse_cls_flower(struct net_device *filter_dev, struct ice_vsi *vsi,
 	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
 	      BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
 	      BIT(FLOW_DISSECTOR_KEY_VLAN) |
+	      BIT(FLOW_DISSECTOR_KEY_CVLAN) |
 	      BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
 	      BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
 	      BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) |
@@ -1060,6 +1094,34 @@ ice_parse_cls_flower(struct net_device *filter_dev, struct ice_vsi *vsi,
 				cpu_to_be16(match.key->vlan_id & VLAN_VID_MASK);
 		if (match.mask->vlan_priority)
 			headers->vlan_hdr.vlan_prio = match.key->vlan_priority;
+		if (match.mask->vlan_tpid)
+			headers->vlan_hdr.vlan_tpid = match.key->vlan_tpid;
+	}
+
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) {
+		struct flow_match_vlan match;
+
+		if (!ice_is_dvm_ena(&vsi->back->hw)) {
+			NL_SET_ERR_MSG_MOD(fltr->extack, "Double VLAN mode is not enabled");
+			return -EINVAL;
+		}
+
+		flow_rule_match_cvlan(rule, &match);
+
+		if (match.mask->vlan_id) {
+			if (match.mask->vlan_id == VLAN_VID_MASK) {
+				fltr->flags |= ICE_TC_FLWR_FIELD_CVLAN;
+			} else {
+				NL_SET_ERR_MSG_MOD(fltr->extack,
+						   "Bad CVLAN mask");
+				return -EINVAL;
+			}
+		}
+
+		headers->cvlan_hdr.vlan_id =
+				cpu_to_be16(match.key->vlan_id & VLAN_VID_MASK);
+		if (match.mask->vlan_priority)
+			headers->cvlan_hdr.vlan_prio = match.key->vlan_priority;
 	}
 
 	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
@@ -1194,7 +1256,7 @@ ice_handle_tclass_action(struct ice_vsi *vsi,
 			   ICE_TC_FLWR_FIELD_ENC_DST_MAC)) {
 		ether_addr_copy(fltr->outer_headers.l2_key.dst_mac,
 				vsi->netdev->dev_addr);
-		memset(fltr->outer_headers.l2_mask.dst_mac, 0xff, ETH_ALEN);
+		eth_broadcast_addr(fltr->outer_headers.l2_mask.dst_mac);
 	}
 
 	/* validate specified dest MAC address, make sure either it belongs to

drivers/net/ethernet/intel/ice/ice_tc_lib.h

@@ -23,6 +23,7 @@
 #define ICE_TC_FLWR_FIELD_ENC_DST_MAC		BIT(16)
 #define ICE_TC_FLWR_FIELD_ETH_TYPE_ID		BIT(17)
 #define ICE_TC_FLWR_FIELD_ENC_OPTS		BIT(18)
+#define ICE_TC_FLWR_FIELD_CVLAN			BIT(19)
 
 #define ICE_TC_FLOWER_MASK_32   0xFFFFFFFF
 
@@ -40,6 +41,7 @@ struct ice_tc_flower_action {
 struct ice_tc_vlan_hdr {
 	__be16 vlan_id; /* Only last 12 bits valid */
 	u16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */
+	__be16 vlan_tpid;
 };
 
 struct ice_tc_l2_hdr {
@@ -81,6 +83,7 @@ struct ice_tc_flower_lyr_2_4_hdrs {
 	struct ice_tc_l2_hdr l2_key;
 	struct ice_tc_l2_hdr l2_mask;
 	struct ice_tc_vlan_hdr vlan_hdr;
+	struct ice_tc_vlan_hdr cvlan_hdr;
 	/* L3 (IPv4[6]) layer fields with their mask */
 	struct ice_tc_l3_hdr l3_key;
 	struct ice_tc_l3_hdr l3_mask;

drivers/net/ethernet/intel/ice/ice_vlan_mode.c

@@ -199,7 +199,6 @@ static bool ice_is_dvm_supported(struct ice_hw *hw)
 #define ICE_SW_LKUP_VLAN_PKT_FLAGS_LKUP_IDX		2
 #define ICE_SW_LKUP_PROMISC_VLAN_LOC_LKUP_IDX		2
 #define ICE_PKT_FLAGS_0_TO_15_FV_IDX			1
-#define ICE_PKT_FLAGS_0_TO_15_VLAN_FLAGS_MASK		0xD000
 static struct ice_update_recipe_lkup_idx_params ice_dvm_dflt_recipes[] = {
 	{
 		/* Update recipe ICE_SW_LKUP_VLAN to filter based on the