ice: Add support for switch filter programming

A VSI needs traffic directed towards it. This is done by programming
filter rules on the switch (embedded vSwitch) element in the hardware,
which connects the VSI to the ingress/egress port.

This patch introduces data structures and functions necessary to add
remove or update switch rules on the switch element. This is a pretty low
level function that is generic enough to add a whole range of filters.

This patch also introduces two top level functions ice_add_mac and
ice_remove mac which through a series of intermediate helper functions
eventually call ice_aq_sw_rules to add/delete simple MAC based filters.
It's worth noting that one invocation of ice_add_mac/ice_remove_mac
is capable of adding/deleting multiple MAC filters.

Also worth noting is the fact that the driver maintains a list of currently
active filters, so every filter addition/removal causes an update to this
list. This is done for a couple of reasons:

1) If two VSIs try to add the same filters, we need to detect it and do
   things a little differently (i.e. use VSI lists, described below) as
   the same filter can't be added more than once.

2) In the event of a hardware reset we can simply walk through this list
   and restore the filters.

VSI Lists:
In a multi-VSI situation, it's possible that multiple VSIs want to add the
same filter rule. For example, two VSIs that want to receive broadcast
traffic would both add a filter for destination MAC ff:ff:ff:ff:ff:ff.
This can become cumbersome to maintain and so this is handled using a
VSI list.

A VSI list is resource that can be allocated in the hardware using the
ice_aq_alloc_free_res admin queue command. Simply put, a VSI list can
be thought of as a subscription list containing a set of VSIs to which
the packet should be forwarded, should the filter match.

For example, if VSI-0 has already added a broadcast filter, and VSI-1
wants to do the same thing, the filter creation flow will detect this,
allocate a VSI list and update the switch rule so that broadcast traffic
will now be forwarded to the VSI list which contains VSI-0 and VSI-1.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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

@@ -8,6 +8,7 @@
  * descriptor format.  It is shared between Firmware and Software.
  */
 
+#define ICE_MAX_VSI			768
 #define ICE_AQC_TOPO_MAX_LEVEL_NUM	0x9
 #define ICE_AQ_SET_MAC_FRAME_SIZE_MAX	9728
 
@@ -191,6 +192,46 @@ struct ice_aqc_get_sw_cfg_resp {
 	struct ice_aqc_get_sw_cfg_resp_elem elements[1];
 };
 
+/* These resource type defines are used for all switch resource
+ * commands where a resource type is required, such as:
+ * Get Resource Allocation command (indirect 0x0204)
+ * Allocate Resources command (indirect 0x0208)
+ * Free Resources command (indirect 0x0209)
+ * Get Allocated Resource Descriptors Command (indirect 0x020A)
+ */
+#define ICE_AQC_RES_TYPE_VSI_LIST_REP			0x03
+#define ICE_AQC_RES_TYPE_VSI_LIST_PRUNE			0x04
+
+/* Allocate Resources command (indirect 0x0208)
+ * Free Resources command (indirect 0x0209)
+ */
+struct ice_aqc_alloc_free_res_cmd {
+	__le16 num_entries; /* Number of Resource entries */
+	u8 reserved[6];
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+/* Resource descriptor */
+struct ice_aqc_res_elem {
+	union {
+		__le16 sw_resp;
+		__le16 flu_resp;
+	} e;
+};
+
+/* Buffer for Allocate/Free Resources commands */
+struct ice_aqc_alloc_free_res_elem {
+	__le16 res_type; /* Types defined above cmd 0x0204 */
+#define ICE_AQC_RES_TYPE_SHARED_S	7
+#define ICE_AQC_RES_TYPE_SHARED_M	(0x1 << ICE_AQC_RES_TYPE_SHARED_S)
+#define ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_S	8
+#define ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_M	\
+				(0xF << ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_S)
+	__le16 num_elems;
+	struct ice_aqc_res_elem elem[1];
+};
+
 /* Add VSI (indirect 0x0210)
  * Update VSI (indirect 0x0211)
  * Get VSI (indirect 0x0212)
@@ -384,6 +425,202 @@ struct ice_aqc_vsi_props {
 	u8 reserved[24];
 };
 
+/* Add/Update/Remove/Get switch rules (indirect 0x02A0, 0x02A1, 0x02A2, 0x02A3)
+ */
+struct ice_aqc_sw_rules {
+	/* ops: add switch rules, referring the number of rules.
+	 * ops: update switch rules, referring the number of filters
+	 * ops: remove switch rules, referring the entry index.
+	 * ops: get switch rules, referring to the number of filters.
+	 */
+	__le16 num_rules_fltr_entry_index;
+	u8 reserved[6];
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+/* Add/Update/Get/Remove lookup Rx/Tx command/response entry
+ * This structures describes the lookup rules and associated actions.  "index"
+ * is returned as part of a response to a successful Add command, and can be
+ * used to identify the rule for Update/Get/Remove commands.
+ */
+struct ice_sw_rule_lkup_rx_tx {
+	__le16 recipe_id;
+#define ICE_SW_RECIPE_LOGICAL_PORT_FWD		10
+	/* Source port for LOOKUP_RX and source VSI in case of LOOKUP_TX */
+	__le16 src;
+	__le32 act;
+
+	/* Bit 0:1 - Action type */
+#define ICE_SINGLE_ACT_TYPE_S	0x00
+#define ICE_SINGLE_ACT_TYPE_M	(0x3 << ICE_SINGLE_ACT_TYPE_S)
+
+	/* Bit 2 - Loop back enable
+	 * Bit 3 - LAN enable
+	 */
+#define ICE_SINGLE_ACT_LB_ENABLE	BIT(2)
+#define ICE_SINGLE_ACT_LAN_ENABLE	BIT(3)
+
+	/* Action type = 0 - Forward to VSI or VSI list */
+#define ICE_SINGLE_ACT_VSI_FORWARDING	0x0
+
+#define ICE_SINGLE_ACT_VSI_ID_S		4
+#define ICE_SINGLE_ACT_VSI_ID_M		(0x3FF << ICE_SINGLE_ACT_VSI_ID_S)
+#define ICE_SINGLE_ACT_VSI_LIST_ID_S	4
+#define ICE_SINGLE_ACT_VSI_LIST_ID_M	(0x3FF << ICE_SINGLE_ACT_VSI_LIST_ID_S)
+	/* This bit needs to be set if action is forward to VSI list */
+#define ICE_SINGLE_ACT_VSI_LIST		BIT(14)
+#define ICE_SINGLE_ACT_VALID_BIT	BIT(17)
+#define ICE_SINGLE_ACT_DROP		BIT(18)
+
+	/* Action type = 1 - Forward to Queue of Queue group */
+#define ICE_SINGLE_ACT_TO_Q		0x1
+#define ICE_SINGLE_ACT_Q_INDEX_S	4
+#define ICE_SINGLE_ACT_Q_INDEX_M	(0x7FF << ICE_SINGLE_ACT_Q_INDEX_S)
+#define ICE_SINGLE_ACT_Q_REGION_S	15
+#define ICE_SINGLE_ACT_Q_REGION_M	(0x7 << ICE_SINGLE_ACT_Q_REGION_S)
+#define ICE_SINGLE_ACT_Q_PRIORITY	BIT(18)
+
+	/* Action type = 2 - Prune */
+#define ICE_SINGLE_ACT_PRUNE		0x2
+#define ICE_SINGLE_ACT_EGRESS		BIT(15)
+#define ICE_SINGLE_ACT_INGRESS		BIT(16)
+#define ICE_SINGLE_ACT_PRUNET		BIT(17)
+	/* Bit 18 should be set to 0 for this action */
+
+	/* Action type = 2 - Pointer */
+#define ICE_SINGLE_ACT_PTR		0x2
+#define ICE_SINGLE_ACT_PTR_VAL_S	4
+#define ICE_SINGLE_ACT_PTR_VAL_M	(0x1FFF << ICE_SINGLE_ACT_PTR_VAL_S)
+	/* Bit 18 should be set to 1 */
+#define ICE_SINGLE_ACT_PTR_BIT		BIT(18)
+
+	/* Action type = 3 - Other actions. Last two bits
+	 * are other action identifier
+	 */
+#define ICE_SINGLE_ACT_OTHER_ACTS		0x3
+#define ICE_SINGLE_OTHER_ACT_IDENTIFIER_S	17
+#define ICE_SINGLE_OTHER_ACT_IDENTIFIER_M	\
+				(0x3 << \ ICE_SINGLE_OTHER_ACT_IDENTIFIER_S)
+
+	/* Bit 17:18 - Defines other actions */
+	/* Other action = 0 - Mirror VSI */
+#define ICE_SINGLE_OTHER_ACT_MIRROR		0
+#define ICE_SINGLE_ACT_MIRROR_VSI_ID_S	4
+#define ICE_SINGLE_ACT_MIRROR_VSI_ID_M	\
+				(0x3FF << ICE_SINGLE_ACT_MIRROR_VSI_ID_S)
+
+	/* Other action = 3 - Set Stat count */
+#define ICE_SINGLE_OTHER_ACT_STAT_COUNT		3
+#define ICE_SINGLE_ACT_STAT_COUNT_INDEX_S	4
+#define ICE_SINGLE_ACT_STAT_COUNT_INDEX_M	\
+				(0x7F << ICE_SINGLE_ACT_STAT_COUNT_INDEX_S)
+
+	__le16 index; /* The index of the rule in the lookup table */
+	/* Length and values of the header to be matched per recipe or
+	 * lookup-type
+	 */
+	__le16 hdr_len;
+	u8 hdr[1];
+} __packed;
+
+/* Add/Update/Remove large action command/response entry
+ * "index" is returned as part of a response to a successful Add command, and
+ * can be used to identify the action for Update/Get/Remove commands.
+ */
+struct ice_sw_rule_lg_act {
+	__le16 index; /* Index in large action table */
+	__le16 size;
+	__le32 act[1]; /* array of size for actions */
+	/* Max number of large actions */
+#define ICE_MAX_LG_ACT	4
+	/* Bit 0:1 - Action type */
+#define ICE_LG_ACT_TYPE_S	0
+#define ICE_LG_ACT_TYPE_M	(0x7 << ICE_LG_ACT_TYPE_S)
+
+	/* Action type = 0 - Forward to VSI or VSI list */
+#define ICE_LG_ACT_VSI_FORWARDING	0
+#define ICE_LG_ACT_VSI_ID_S		3
+#define ICE_LG_ACT_VSI_ID_M		(0x3FF << ICE_LG_ACT_VSI_ID_S)
+#define ICE_LG_ACT_VSI_LIST_ID_S	3
+#define ICE_LG_ACT_VSI_LIST_ID_M	(0x3FF << ICE_LG_ACT_VSI_LIST_ID_S)
+	/* This bit needs to be set if action is forward to VSI list */
+#define ICE_LG_ACT_VSI_LIST		BIT(13)
+
+#define ICE_LG_ACT_VALID_BIT		BIT(16)
+
+	/* Action type = 1 - Forward to Queue of Queue group */
+#define ICE_LG_ACT_TO_Q			0x1
+#define ICE_LG_ACT_Q_INDEX_S		3
+#define ICE_LG_ACT_Q_INDEX_M		(0x7FF << ICE_LG_ACT_Q_INDEX_S)
+#define ICE_LG_ACT_Q_REGION_S		14
+#define ICE_LG_ACT_Q_REGION_M		(0x7 << ICE_LG_ACT_Q_REGION_S)
+#define ICE_LG_ACT_Q_PRIORITY_SET	BIT(17)
+
+	/* Action type = 2 - Prune */
+#define ICE_LG_ACT_PRUNE		0x2
+#define ICE_LG_ACT_EGRESS		BIT(14)
+#define ICE_LG_ACT_INGRESS		BIT(15)
+#define ICE_LG_ACT_PRUNET		BIT(16)
+
+	/* Action type = 3 - Mirror VSI */
+#define ICE_LG_OTHER_ACT_MIRROR		0x3
+#define ICE_LG_ACT_MIRROR_VSI_ID_S	3
+#define ICE_LG_ACT_MIRROR_VSI_ID_M	(0x3FF << ICE_LG_ACT_MIRROR_VSI_ID_S)
+
+	/* Action type = 5 - Large Action */
+#define ICE_LG_ACT_GENERIC		0x5
+#define ICE_LG_ACT_GENERIC_VALUE_S	3
+#define ICE_LG_ACT_GENERIC_VALUE_M	(0xFFFF << ICE_LG_ACT_GENERIC_VALUE_S)
+#define ICE_LG_ACT_GENERIC_OFFSET_S	19
+#define ICE_LG_ACT_GENERIC_OFFSET_M	(0x7 << ICE_LG_ACT_GENERIC_OFFSET_S)
+#define ICE_LG_ACT_GENERIC_PRIORITY_S	22
+#define ICE_LG_ACT_GENERIC_PRIORITY_M	(0x7 << ICE_LG_ACT_GENERIC_PRIORITY_S)
+
+	/* Action = 7 - Set Stat count */
+#define ICE_LG_ACT_STAT_COUNT		0x7
+#define ICE_LG_ACT_STAT_COUNT_S		3
+#define ICE_LG_ACT_STAT_COUNT_M		(0x7F << ICE_LG_ACT_STAT_COUNT_S)
+};
+
+/* Add/Update/Remove VSI list command/response entry
+ * "index" is returned as part of a response to a successful Add command, and
+ * can be used to identify the VSI list for Update/Get/Remove commands.
+ */
+struct ice_sw_rule_vsi_list {
+	__le16 index; /* Index of VSI/Prune list */
+	__le16 number_vsi;
+	__le16 vsi[1]; /* Array of number_vsi VSI numbers */
+};
+
+/* Query VSI list command/response entry */
+struct ice_sw_rule_vsi_list_query {
+	__le16 index;
+	DECLARE_BITMAP(vsi_list, ICE_MAX_VSI);
+} __packed;
+
+/* Add switch rule response:
+ * Content of return buffer is same as the input buffer. The status field and
+ * LUT index are updated as part of the response
+ */
+struct ice_aqc_sw_rules_elem {
+	__le16 type; /* Switch rule type, one of T_... */
+#define ICE_AQC_SW_RULES_T_LKUP_RX		0x0
+#define ICE_AQC_SW_RULES_T_LKUP_TX		0x1
+#define ICE_AQC_SW_RULES_T_LG_ACT		0x2
+#define ICE_AQC_SW_RULES_T_VSI_LIST_SET		0x3
+#define ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR	0x4
+#define ICE_AQC_SW_RULES_T_PRUNE_LIST_SET	0x5
+#define ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR	0x6
+	__le16 status;
+	union {
+		struct ice_sw_rule_lkup_rx_tx lkup_tx_rx;
+		struct ice_sw_rule_lg_act lg_act;
+		struct ice_sw_rule_vsi_list vsi_list;
+		struct ice_sw_rule_vsi_list_query vsi_list_query;
+	} __packed pdata;
+};
+
 /* Get Default Topology (indirect 0x0400) */
 struct ice_aqc_get_topo {
 	u8 port_num;
@@ -766,11 +1003,13 @@ struct ice_aq_desc {
 		struct ice_aqc_list_caps get_cap;
 		struct ice_aqc_get_phy_caps get_phy;
 		struct ice_aqc_get_sw_cfg get_sw_conf;
+		struct ice_aqc_sw_rules sw_rules;
 		struct ice_aqc_get_topo get_topo;
 		struct ice_aqc_query_txsched_res query_sched_res;
 		struct ice_aqc_add_move_delete_elem add_move_delete_elem;
 		struct ice_aqc_nvm nvm;
 		struct ice_aqc_add_get_update_free_vsi vsi_cmd;
+		struct ice_aqc_alloc_free_res_cmd sw_res_ctrl;
 		struct ice_aqc_get_link_status get_link_status;
 	} params;
 };
@@ -821,10 +1060,20 @@ enum ice_adminq_opc {
 	/* internal switch commands */
 	ice_aqc_opc_get_sw_cfg				= 0x0200,
 
+	/* Alloc/Free/Get Resources */
+	ice_aqc_opc_alloc_res				= 0x0208,
+	ice_aqc_opc_free_res				= 0x0209,
+
 	/* VSI commands */
 	ice_aqc_opc_add_vsi				= 0x0210,
 	ice_aqc_opc_update_vsi				= 0x0211,
 	ice_aqc_opc_free_vsi				= 0x0213,
+
+	/* switch rules population commands */
+	ice_aqc_opc_add_sw_rules			= 0x02A0,
+	ice_aqc_opc_update_sw_rules			= 0x02A1,
+	ice_aqc_opc_remove_sw_rules			= 0x02A2,
+
 	ice_aqc_opc_clear_pf_cfg			= 0x02A4,
 
 	/* transmit scheduler commands */

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

@@ -258,6 +258,66 @@ ice_aq_get_link_info(struct ice_port_info *pi, bool ena_lse,
 	return status;
 }
 
+/**
+ * ice_init_fltr_mgmt_struct - initializes filter management list and locks
+ * @hw: pointer to the hw struct
+ */
+static enum ice_status ice_init_fltr_mgmt_struct(struct ice_hw *hw)
+{
+	struct ice_switch_info *sw;
+
+	hw->switch_info = devm_kzalloc(ice_hw_to_dev(hw),
+				       sizeof(*hw->switch_info), GFP_KERNEL);
+	sw = hw->switch_info;
+
+	if (!sw)
+		return ICE_ERR_NO_MEMORY;
+
+	INIT_LIST_HEAD(&sw->vsi_list_map_head);
+
+	mutex_init(&sw->mac_list_lock);
+	INIT_LIST_HEAD(&sw->mac_list_head);
+
+	mutex_init(&sw->vlan_list_lock);
+	INIT_LIST_HEAD(&sw->vlan_list_head);
+
+	mutex_init(&sw->eth_m_list_lock);
+	INIT_LIST_HEAD(&sw->eth_m_list_head);
+
+	mutex_init(&sw->promisc_list_lock);
+	INIT_LIST_HEAD(&sw->promisc_list_head);
+
+	mutex_init(&sw->mac_vlan_list_lock);
+	INIT_LIST_HEAD(&sw->mac_vlan_list_head);
+
+	return 0;
+}
+
+/**
+ * ice_cleanup_fltr_mgmt_struct - cleanup filter management list and locks
+ * @hw: pointer to the hw struct
+ */
+static void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw)
+{
+	struct ice_switch_info *sw = hw->switch_info;
+	struct ice_vsi_list_map_info *v_pos_map;
+	struct ice_vsi_list_map_info *v_tmp_map;
+
+	list_for_each_entry_safe(v_pos_map, v_tmp_map, &sw->vsi_list_map_head,
+				 list_entry) {
+		list_del(&v_pos_map->list_entry);
+		devm_kfree(ice_hw_to_dev(hw), v_pos_map);
+	}
+
+	mutex_destroy(&sw->mac_list_lock);
+	mutex_destroy(&sw->vlan_list_lock);
+	mutex_destroy(&sw->eth_m_list_lock);
+	mutex_destroy(&sw->promisc_list_lock);
+	mutex_destroy(&sw->mac_vlan_list_lock);
+
+	devm_kfree(ice_hw_to_dev(hw), sw);
+}
+
 /**
  * ice_init_hw - main hardware initialization routine
  * @hw: pointer to the hardware structure
@@ -321,6 +381,8 @@ enum ice_status ice_init_hw(struct ice_hw *hw)
 	if (status)
 		goto err_unroll_alloc;
 
+	hw->evb_veb = true;
+
 	/* Query the allocated resources for tx scheduler */
 	status = ice_sched_query_res_alloc(hw);
 	if (status) {
@@ -352,21 +414,27 @@ enum ice_status ice_init_hw(struct ice_hw *hw)
 	if (status)
 		goto err_unroll_sched;
 
+	status = ice_init_fltr_mgmt_struct(hw);
+	if (status)
+		goto err_unroll_sched;
+
 	/* Get port MAC information */
 	mac_buf_len = sizeof(struct ice_aqc_manage_mac_read_resp);
 	mac_buf = devm_kzalloc(ice_hw_to_dev(hw), mac_buf_len, GFP_KERNEL);
 
 	if (!mac_buf)
-		goto err_unroll_sched;
+		goto err_unroll_fltr_mgmt_struct;
 
 	status = ice_aq_manage_mac_read(hw, mac_buf, mac_buf_len, NULL);
 	devm_kfree(ice_hw_to_dev(hw), mac_buf);
 
 	if (status)
-		goto err_unroll_sched;
+		goto err_unroll_fltr_mgmt_struct;
 
 	return 0;
 
+err_unroll_fltr_mgmt_struct:
+	ice_cleanup_fltr_mgmt_struct(hw);
 err_unroll_sched:
 	ice_sched_cleanup_all(hw);
 err_unroll_alloc:
@@ -389,6 +457,8 @@ void ice_deinit_hw(struct ice_hw *hw)
 		devm_kfree(ice_hw_to_dev(hw), hw->port_info);
 		hw->port_info = NULL;
 	}
+
+	ice_cleanup_fltr_mgmt_struct(hw);
 }
 
 /**

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

@@ -162,6 +162,57 @@ static int ice_free_res(struct ice_res_tracker *res, u16 index, u16 id)
 	return count;
 }
 
+/**
+ * ice_add_mac_to_list - Add a mac address filter entry to the list
+ * @vsi: the VSI to be forwarded to
+ * @add_list: pointer to the list which contains MAC filter entries
+ * @macaddr: the MAC address to be added.
+ *
+ * Adds mac address filter entry to the temp list
+ *
+ * Returns 0 on success or ENOMEM on failure.
+ */
+static int ice_add_mac_to_list(struct ice_vsi *vsi, struct list_head *add_list,
+			       const u8 *macaddr)
+{
+	struct ice_fltr_list_entry *tmp;
+	struct ice_pf *pf = vsi->back;
+
+	tmp = devm_kzalloc(&pf->pdev->dev, sizeof(*tmp), GFP_ATOMIC);
+	if (!tmp)
+		return -ENOMEM;
+
+	tmp->fltr_info.flag = ICE_FLTR_TX;
+	tmp->fltr_info.src = vsi->vsi_num;
+	tmp->fltr_info.lkup_type = ICE_SW_LKUP_MAC;
+	tmp->fltr_info.fltr_act = ICE_FWD_TO_VSI;
+	tmp->fltr_info.fwd_id.vsi_id = vsi->vsi_num;
+	ether_addr_copy(tmp->fltr_info.l_data.mac.mac_addr, macaddr);
+
+	INIT_LIST_HEAD(&tmp->list_entry);
+	list_add(&tmp->list_entry, add_list);
+
+	return 0;
+}
+
+/**
+ * ice_free_fltr_list - free filter lists helper
+ * @dev: pointer to the device struct
+ * @h: pointer to the list head to be freed
+ *
+ * Helper function to free filter lists previously created using
+ * ice_add_mac_to_list
+ */
+static void ice_free_fltr_list(struct device *dev, struct list_head *h)
+{
+	struct ice_fltr_list_entry *e, *tmp;
+
+	list_for_each_entry_safe(e, tmp, h, list_entry) {
+		list_del(&e->list_entry);
+		devm_kfree(dev, e);
+	}
+}
+
 /**
  * __ice_clean_ctrlq - helper function to clean controlq rings
  * @pf: ptr to struct ice_pf
@@ -1519,6 +1570,8 @@ err_get_qs:
  */
 static int ice_setup_pf_sw(struct ice_pf *pf)
 {
+	LIST_HEAD(tmp_add_list);
+	u8 broadcast[ETH_ALEN];
 	struct ice_vsi *vsi;
 	int status = 0;
 
@@ -1528,7 +1581,37 @@ static int ice_setup_pf_sw(struct ice_pf *pf)
 		goto error_exit;
 	}
 
+	/* tmp_add_list contains a list of MAC addresses for which MAC
+	 * filters need to be programmed. Add the VSI's unicast MAC to
+	 * this list
+	 */
+	status = ice_add_mac_to_list(vsi, &tmp_add_list,
+				     vsi->port_info->mac.perm_addr);
+	if (status)
+		goto error_exit;
+
+	/* VSI needs to receive broadcast traffic, so add the broadcast
+	 * MAC address to the list.
+	 */
+	eth_broadcast_addr(broadcast);
+	status = ice_add_mac_to_list(vsi, &tmp_add_list, broadcast);
+	if (status)
+		goto error_exit;
+
+	/* program MAC filters for entries in tmp_add_list */
+	status = ice_add_mac(&pf->hw, &tmp_add_list);
+	if (status) {
+		dev_err(&pf->pdev->dev, "Could not add MAC filters\n");
+		status = -ENOMEM;
+		goto error_exit;
+	}
+
+	ice_free_fltr_list(&pf->pdev->dev, &tmp_add_list);
+	return status;
+
 error_exit:
+	ice_free_fltr_list(&pf->pdev->dev, &tmp_add_list);
+
 	if (vsi) {
 		ice_vsi_free_q_vectors(vsi);
 		if (vsi->netdev && vsi->netdev->reg_state == NETREG_REGISTERED)
@@ -1537,6 +1620,7 @@ error_exit:
 			free_netdev(vsi->netdev);
 			vsi->netdev = NULL;
 		}
+
 		ice_vsi_delete(vsi);
 		ice_vsi_put_qs(vsi);
 		pf->q_left_tx += vsi->alloc_txq;
@@ -1869,6 +1953,13 @@ static int ice_probe(struct pci_dev *pdev,
 			"probe failed due to setup pf switch:%d\n", err);
 		goto err_alloc_sw_unroll;
 	}
+
+	/* Driver is mostly up */
+	clear_bit(__ICE_DOWN, pf->state);
+
+	/* since everything is good, start the service timer */
+	mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
+
 	return 0;
 
 err_alloc_sw_unroll:
@@ -2012,6 +2103,7 @@ static int ice_vsi_release(struct ice_vsi *vsi)
 	ice_free_res(vsi->back->irq_tracker, vsi->base_vector, vsi->idx);
 	pf->num_avail_msix += vsi->num_q_vectors;
 
+	ice_remove_vsi_fltr(&pf->hw, vsi->vsi_num);
 	ice_vsi_delete(vsi);
 	ice_vsi_free_q_vectors(vsi);
 	ice_vsi_clear_rings(vsi);

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

@@ -7,6 +7,7 @@
 /* Error Codes */
 enum ice_status {
 	ICE_ERR_PARAM				= -1,
+	ICE_ERR_NOT_IMPL			= -2,
 	ICE_ERR_NOT_READY			= -3,
 	ICE_ERR_INVAL_SIZE			= -6,
 	ICE_ERR_DEVICE_NOT_SUPPORTED		= -8,
@@ -15,6 +16,8 @@ enum ice_status {
 	ICE_ERR_NO_MEMORY			= -11,
 	ICE_ERR_CFG				= -12,
 	ICE_ERR_OUT_OF_RANGE			= -13,
+	ICE_ERR_ALREADY_EXISTS			= -14,
+	ICE_ERR_DOES_NOT_EXIST			= -15,
 	ICE_ERR_BUF_TOO_SHORT			= -52,
 	ICE_ERR_NVM_BLANK_MODE			= -53,
 	ICE_ERR_AQ_ERROR			= -100,

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

@@ -3,6 +3,88 @@
 
 #include "ice_switch.h"
 
+#define ICE_ETH_DA_OFFSET		0
+#define ICE_ETH_ETHTYPE_OFFSET		12
+#define ICE_ETH_VLAN_TCI_OFFSET		14
+#define ICE_MAX_VLAN_ID			0xFFF
+
+/* Dummy ethernet header needed in the ice_aqc_sw_rules_elem
+ * struct to configure any switch filter rules.
+ * {DA (6 bytes), SA(6 bytes),
+ * Ether type (2 bytes for header without VLAN tag) OR
+ * VLAN tag (4 bytes for header with VLAN tag) }
+ *
+ * Word on Hardcoded values
+ * byte 0 = 0x2: to identify it as locally administered DA MAC
+ * byte 6 = 0x2: to identify it as locally administered SA MAC
+ * byte 12 = 0x81 & byte 13 = 0x00:
+ *	In case of VLAN filter first two bytes defines ether type (0x8100)
+ *	and remaining two bytes are placeholder for programming a given VLAN id
+ *	In case of Ether type filter it is treated as header without VLAN tag
+ *	and byte 12 and 13 is used to program a given Ether type instead
+ */
+#define DUMMY_ETH_HDR_LEN		16
+static const u8 dummy_eth_header[DUMMY_ETH_HDR_LEN] = { 0x2, 0, 0, 0, 0, 0,
+							0x2, 0, 0, 0, 0, 0,
+							0x81, 0, 0, 0};
+
+#define ICE_SW_RULE_RX_TX_ETH_HDR_SIZE \
+	(sizeof(struct ice_aqc_sw_rules_elem) - \
+	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
+	 sizeof(struct ice_sw_rule_lkup_rx_tx) + DUMMY_ETH_HDR_LEN - 1)
+#define ICE_SW_RULE_RX_TX_NO_HDR_SIZE \
+	(sizeof(struct ice_aqc_sw_rules_elem) - \
+	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
+	 sizeof(struct ice_sw_rule_lkup_rx_tx) - 1)
+#define ICE_SW_RULE_LG_ACT_SIZE(n) \
+	(sizeof(struct ice_aqc_sw_rules_elem) - \
+	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
+	 sizeof(struct ice_sw_rule_lg_act) - \
+	 sizeof(((struct ice_sw_rule_lg_act *)0)->act) + \
+	 ((n) * sizeof(((struct ice_sw_rule_lg_act *)0)->act)))
+#define ICE_SW_RULE_VSI_LIST_SIZE(n) \
+	(sizeof(struct ice_aqc_sw_rules_elem) - \
+	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
+	 sizeof(struct ice_sw_rule_vsi_list) - \
+	 sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi) + \
+	 ((n) * sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi)))
+
+/**
+ * ice_aq_alloc_free_res - command to allocate/free resources
+ * @hw: pointer to the hw struct
+ * @num_entries: number of resource entries in buffer
+ * @buf: Indirect buffer to hold data parameters and response
+ * @buf_size: size of buffer for indirect commands
+ * @opc: pass in the command opcode
+ * @cd: pointer to command details structure or NULL
+ *
+ * Helper function to allocate/free resources using the admin queue commands
+ */
+static enum ice_status
+ice_aq_alloc_free_res(struct ice_hw *hw, u16 num_entries,
+		      struct ice_aqc_alloc_free_res_elem *buf, u16 buf_size,
+		      enum ice_adminq_opc opc, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_alloc_free_res_cmd *cmd;
+	struct ice_aq_desc desc;
+
+	cmd = &desc.params.sw_res_ctrl;
+
+	if (!buf)
+		return ICE_ERR_PARAM;
+
+	if (buf_size < (num_entries * sizeof(buf->elem[0])))
+		return ICE_ERR_PARAM;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, opc);
+
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+	cmd->num_entries = cpu_to_le16(num_entries);
+
+	return ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
+}
+
 /**
  * ice_aq_get_sw_cfg - get switch configuration
  * @hw: pointer to the hardware structure
@@ -165,6 +247,93 @@ ice_aq_free_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
 	return status;
 }
 
+/**
+ * ice_aq_alloc_free_vsi_list
+ * @hw: pointer to the hw struct
+ * @vsi_list_id: VSI list id returned or used for lookup
+ * @lkup_type: switch rule filter lookup type
+ * @opc: switch rules population command type - pass in the command opcode
+ *
+ * allocates or free a VSI list resource
+ */
+static enum ice_status
+ice_aq_alloc_free_vsi_list(struct ice_hw *hw, u16 *vsi_list_id,
+			   enum ice_sw_lkup_type lkup_type,
+			   enum ice_adminq_opc opc)
+{
+	struct ice_aqc_alloc_free_res_elem *sw_buf;
+	struct ice_aqc_res_elem *vsi_ele;
+	enum ice_status status;
+	u16 buf_len;
+
+	buf_len = sizeof(*sw_buf);
+	sw_buf = devm_kzalloc(ice_hw_to_dev(hw), buf_len, GFP_KERNEL);
+	if (!sw_buf)
+		return ICE_ERR_NO_MEMORY;
+	sw_buf->num_elems = cpu_to_le16(1);
+
+	if (lkup_type == ICE_SW_LKUP_MAC ||
+	    lkup_type == ICE_SW_LKUP_MAC_VLAN ||
+	    lkup_type == ICE_SW_LKUP_ETHERTYPE ||
+	    lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
+	    lkup_type == ICE_SW_LKUP_PROMISC ||
+	    lkup_type == ICE_SW_LKUP_PROMISC_VLAN) {
+		sw_buf->res_type = cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_REP);
+	} else if (lkup_type == ICE_SW_LKUP_VLAN) {
+		sw_buf->res_type =
+			cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_PRUNE);
+	} else {
+		status = ICE_ERR_PARAM;
+		goto ice_aq_alloc_free_vsi_list_exit;
+	}
+
+	if (opc == ice_aqc_opc_free_res)
+		sw_buf->elem[0].e.sw_resp = cpu_to_le16(*vsi_list_id);
+
+	status = ice_aq_alloc_free_res(hw, 1, sw_buf, buf_len, opc, NULL);
+	if (status)
+		goto ice_aq_alloc_free_vsi_list_exit;
+
+	if (opc == ice_aqc_opc_alloc_res) {
+		vsi_ele = &sw_buf->elem[0];
+		*vsi_list_id = le16_to_cpu(vsi_ele->e.sw_resp);
+	}
+
+ice_aq_alloc_free_vsi_list_exit:
+	devm_kfree(ice_hw_to_dev(hw), sw_buf);
+	return status;
+}
+
+/**
+ * ice_aq_sw_rules - add/update/remove switch rules
+ * @hw: pointer to the hw struct
+ * @rule_list: pointer to switch rule population list
+ * @rule_list_sz: total size of the rule list in bytes
+ * @num_rules: number of switch rules in the rule_list
+ * @opc: switch rules population command type - pass in the command opcode
+ * @cd: pointer to command details structure or NULL
+ *
+ * Add(0x02a0)/Update(0x02a1)/Remove(0x02a2) switch rules commands to firmware
+ */
+static enum ice_status
+ice_aq_sw_rules(struct ice_hw *hw, void *rule_list, u16 rule_list_sz,
+		u8 num_rules, enum ice_adminq_opc opc, struct ice_sq_cd *cd)
+{
+	struct ice_aq_desc desc;
+
+	if (opc != ice_aqc_opc_add_sw_rules &&
+	    opc != ice_aqc_opc_update_sw_rules &&
+	    opc != ice_aqc_opc_remove_sw_rules)
+		return ICE_ERR_PARAM;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, opc);
+
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+	desc.params.sw_rules.num_rules_fltr_entry_index =
+		cpu_to_le16(num_rules);
+	return ice_aq_send_cmd(hw, &desc, rule_list, rule_list_sz, cd);
+}
+
 /* ice_init_port_info - Initialize port_info with switch configuration data
  * @pi: pointer to port_info
  * @vsi_port_num: VSI number or port number
@@ -257,3 +426,1212 @@ enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw)
 	devm_kfree(ice_hw_to_dev(hw), (void *)rbuf);
 	return status;
 }
+
+/**
+ * ice_fill_sw_info - Helper function to populate lb_en and lan_en
+ * @hw: pointer to the hardware structure
+ * @f_info: filter info structure to fill/update
+ *
+ * This helper function populates the lb_en and lan_en elements of the provided
+ * ice_fltr_info struct using the switch's type and characteristics of the
+ * switch rule being configured.
+ */
+static void ice_fill_sw_info(struct ice_hw *hw, struct ice_fltr_info *f_info)
+{
+	f_info->lb_en = false;
+	f_info->lan_en = false;
+	if ((f_info->flag & ICE_FLTR_TX) &&
+	    (f_info->fltr_act == ICE_FWD_TO_VSI ||
+	     f_info->fltr_act == ICE_FWD_TO_VSI_LIST ||
+	     f_info->fltr_act == ICE_FWD_TO_Q ||
+	     f_info->fltr_act == ICE_FWD_TO_QGRP)) {
+		f_info->lb_en = true;
+		if (!(hw->evb_veb && f_info->lkup_type == ICE_SW_LKUP_MAC &&
+		      is_unicast_ether_addr(f_info->l_data.mac.mac_addr)))
+			f_info->lan_en = true;
+	}
+}
+
+/**
+ * ice_fill_sw_rule - Helper function to fill switch rule structure
+ * @hw: pointer to the hardware structure
+ * @f_info: entry containing packet forwarding information
+ * @s_rule: switch rule structure to be filled in based on mac_entry
+ * @opc: switch rules population command type - pass in the command opcode
+ */
+static void
+ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info,
+		 struct ice_aqc_sw_rules_elem *s_rule, enum ice_adminq_opc opc)
+{
+	u16 vlan_id = ICE_MAX_VLAN_ID + 1;
+	u8 eth_hdr[DUMMY_ETH_HDR_LEN];
+	void *daddr = NULL;
+	u32 act = 0;
+	__be16 *off;
+
+	if (opc == ice_aqc_opc_remove_sw_rules) {
+		s_rule->pdata.lkup_tx_rx.act = 0;
+		s_rule->pdata.lkup_tx_rx.index =
+			cpu_to_le16(f_info->fltr_rule_id);
+		s_rule->pdata.lkup_tx_rx.hdr_len = 0;
+		return;
+	}
+
+	/* initialize the ether header with a dummy header */
+	memcpy(eth_hdr, dummy_eth_header, sizeof(dummy_eth_header));
+	ice_fill_sw_info(hw, f_info);
+
+	switch (f_info->fltr_act) {
+	case ICE_FWD_TO_VSI:
+		act |= (f_info->fwd_id.vsi_id << ICE_SINGLE_ACT_VSI_ID_S) &
+			ICE_SINGLE_ACT_VSI_ID_M;
+		if (f_info->lkup_type != ICE_SW_LKUP_VLAN)
+			act |= ICE_SINGLE_ACT_VSI_FORWARDING |
+				ICE_SINGLE_ACT_VALID_BIT;
+		break;
+	case ICE_FWD_TO_VSI_LIST:
+		act |= ICE_SINGLE_ACT_VSI_LIST;
+		act |= (f_info->fwd_id.vsi_list_id <<
+			ICE_SINGLE_ACT_VSI_LIST_ID_S) &
+			ICE_SINGLE_ACT_VSI_LIST_ID_M;
+		if (f_info->lkup_type != ICE_SW_LKUP_VLAN)
+			act |= ICE_SINGLE_ACT_VSI_FORWARDING |
+				ICE_SINGLE_ACT_VALID_BIT;
+		break;
+	case ICE_FWD_TO_Q:
+		act |= ICE_SINGLE_ACT_TO_Q;
+		act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
+			ICE_SINGLE_ACT_Q_INDEX_M;
+		break;
+	case ICE_FWD_TO_QGRP:
+		act |= ICE_SINGLE_ACT_TO_Q;
+		act |= (f_info->qgrp_size << ICE_SINGLE_ACT_Q_REGION_S) &
+			ICE_SINGLE_ACT_Q_REGION_M;
+		break;
+	case ICE_DROP_PACKET:
+		act |= ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_DROP;
+		break;
+	default:
+		return;
+	}
+
+	if (f_info->lb_en)
+		act |= ICE_SINGLE_ACT_LB_ENABLE;
+	if (f_info->lan_en)
+		act |= ICE_SINGLE_ACT_LAN_ENABLE;
+
+	switch (f_info->lkup_type) {
+	case ICE_SW_LKUP_MAC:
+		daddr = f_info->l_data.mac.mac_addr;
+		break;
+	case ICE_SW_LKUP_VLAN:
+		vlan_id = f_info->l_data.vlan.vlan_id;
+		if (f_info->fltr_act == ICE_FWD_TO_VSI ||
+		    f_info->fltr_act == ICE_FWD_TO_VSI_LIST) {
+			act |= ICE_SINGLE_ACT_PRUNE;
+			act |= ICE_SINGLE_ACT_EGRESS | ICE_SINGLE_ACT_INGRESS;
+		}
+		break;
+	case ICE_SW_LKUP_ETHERTYPE_MAC:
+		daddr = f_info->l_data.ethertype_mac.mac_addr;
+		/* fall-through */
+	case ICE_SW_LKUP_ETHERTYPE:
+		off = (__be16 *)&eth_hdr[ICE_ETH_ETHTYPE_OFFSET];
+		*off = cpu_to_be16(f_info->l_data.ethertype_mac.ethertype);
+		break;
+	case ICE_SW_LKUP_MAC_VLAN:
+		daddr = f_info->l_data.mac_vlan.mac_addr;
+		vlan_id = f_info->l_data.mac_vlan.vlan_id;
+		break;
+	case ICE_SW_LKUP_PROMISC_VLAN:
+		vlan_id = f_info->l_data.mac_vlan.vlan_id;
+		/* fall-through */
+	case ICE_SW_LKUP_PROMISC:
+		daddr = f_info->l_data.mac_vlan.mac_addr;
+		break;
+	default:
+		break;
+	}
+
+	s_rule->type = (f_info->flag & ICE_FLTR_RX) ?
+		cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX) :
+		cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_TX);
+
+	/* Recipe set depending on lookup type */
+	s_rule->pdata.lkup_tx_rx.recipe_id = cpu_to_le16(f_info->lkup_type);
+	s_rule->pdata.lkup_tx_rx.src = cpu_to_le16(f_info->src);
+	s_rule->pdata.lkup_tx_rx.act = cpu_to_le32(act);
+
+	if (daddr)
+		ether_addr_copy(&eth_hdr[ICE_ETH_DA_OFFSET], daddr);
+
+	if (!(vlan_id > ICE_MAX_VLAN_ID)) {
+		off = (__be16 *)&eth_hdr[ICE_ETH_VLAN_TCI_OFFSET];
+		*off = cpu_to_be16(vlan_id);
+	}
+
+	/* Create the switch rule with the final dummy Ethernet header */
+	if (opc != ice_aqc_opc_update_sw_rules)
+		s_rule->pdata.lkup_tx_rx.hdr_len = cpu_to_le16(sizeof(eth_hdr));
+
+	memcpy(s_rule->pdata.lkup_tx_rx.hdr, eth_hdr, sizeof(eth_hdr));
+}
+
+/**
+ * ice_add_marker_act
+ * @hw: pointer to the hardware structure
+ * @m_ent: the management entry for which sw marker needs to be added
+ * @sw_marker: sw marker to tag the Rx descriptor with
+ * @l_id: large action resource id
+ *
+ * Create a large action to hold software marker and update the switch rule
+ * entry pointed by m_ent with newly created large action
+ */
+static enum ice_status
+ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent,
+		   u16 sw_marker, u16 l_id)
+{
+	struct ice_aqc_sw_rules_elem *lg_act, *rx_tx;
+	/* For software marker we need 3 large actions
+	 * 1. FWD action: FWD TO VSI or VSI LIST
+	 * 2. GENERIC VALUE action to hold the profile id
+	 * 3. GENERIC VALUE action to hold the software marker id
+	 */
+	const u16 num_lg_acts = 3;
+	enum ice_status status;
+	u16 lg_act_size;
+	u16 rules_size;
+	u16 vsi_info;
+	u32 act;
+
+	if (m_ent->fltr_info.lkup_type != ICE_SW_LKUP_MAC)
+		return ICE_ERR_PARAM;
+
+	/* Create two back-to-back switch rules and submit them to the HW using
+	 * one memory buffer:
+	 *    1. Large Action
+	 *    2. Look up tx rx
+	 */
+	lg_act_size = (u16)ICE_SW_RULE_LG_ACT_SIZE(num_lg_acts);
+	rules_size = lg_act_size + ICE_SW_RULE_RX_TX_ETH_HDR_SIZE;
+	lg_act = devm_kzalloc(ice_hw_to_dev(hw), rules_size, GFP_KERNEL);
+	if (!lg_act)
+		return ICE_ERR_NO_MEMORY;
+
+	rx_tx = (struct ice_aqc_sw_rules_elem *)((u8 *)lg_act + lg_act_size);
+
+	/* Fill in the first switch rule i.e. large action */
+	lg_act->type = cpu_to_le16(ICE_AQC_SW_RULES_T_LG_ACT);
+	lg_act->pdata.lg_act.index = cpu_to_le16(l_id);
+	lg_act->pdata.lg_act.size = cpu_to_le16(num_lg_acts);
+
+	/* First action VSI forwarding or VSI list forwarding depending on how
+	 * many VSIs
+	 */
+	vsi_info = (m_ent->vsi_count > 1) ?
+		m_ent->fltr_info.fwd_id.vsi_list_id :
+		m_ent->fltr_info.fwd_id.vsi_id;
+
+	act = ICE_LG_ACT_VSI_FORWARDING | ICE_LG_ACT_VALID_BIT;
+	act |= (vsi_info << ICE_LG_ACT_VSI_LIST_ID_S) &
+		ICE_LG_ACT_VSI_LIST_ID_M;
+	if (m_ent->vsi_count > 1)
+		act |= ICE_LG_ACT_VSI_LIST;
+	lg_act->pdata.lg_act.act[0] = cpu_to_le32(act);
+
+	/* Second action descriptor type */
+	act = ICE_LG_ACT_GENERIC;
+
+	act |= (1 << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M;
+	lg_act->pdata.lg_act.act[1] = cpu_to_le32(act);
+
+	act = (7 << ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_VALUE_M;
+
+	/* Third action Marker value */
+	act |= ICE_LG_ACT_GENERIC;
+	act |= (sw_marker << ICE_LG_ACT_GENERIC_VALUE_S) &
+		ICE_LG_ACT_GENERIC_VALUE_M;
+
+	act |= (0 << ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_VALUE_M;
+	lg_act->pdata.lg_act.act[2] = cpu_to_le32(act);
+
+	/* call the fill switch rule to fill the lookup tx rx structure */
+	ice_fill_sw_rule(hw, &m_ent->fltr_info, rx_tx,
+			 ice_aqc_opc_update_sw_rules);
+
+	/* Update the action to point to the large action id */
+	rx_tx->pdata.lkup_tx_rx.act =
+		cpu_to_le32(ICE_SINGLE_ACT_PTR |
+			    ((l_id << ICE_SINGLE_ACT_PTR_VAL_S) &
+			     ICE_SINGLE_ACT_PTR_VAL_M));
+
+	/* Use the filter rule id of the previously created rule with single
+	 * act. Once the update happens, hardware will treat this as large
+	 * action
+	 */
+	rx_tx->pdata.lkup_tx_rx.index =
+		cpu_to_le16(m_ent->fltr_info.fltr_rule_id);
+
+	status = ice_aq_sw_rules(hw, lg_act, rules_size, 2,
+				 ice_aqc_opc_update_sw_rules, NULL);
+	if (!status) {
+		m_ent->lg_act_idx = l_id;
+		m_ent->sw_marker_id = sw_marker;
+	}
+
+	devm_kfree(ice_hw_to_dev(hw), lg_act);
+	return status;
+}
+
+/**
+ * ice_create_vsi_list_map
+ * @hw: pointer to the hardware structure
+ * @vsi_array: array of VSIs to form a VSI list
+ * @num_vsi: num VSI in the array
+ * @vsi_list_id: VSI list id generated as part of allocate resource
+ *
+ * Helper function to create a new entry of VSI list id to VSI mapping
+ * using the given VSI list id
+ */
+static struct ice_vsi_list_map_info *
+ice_create_vsi_list_map(struct ice_hw *hw, u16 *vsi_array, u16 num_vsi,
+			u16 vsi_list_id)
+{
+	struct ice_switch_info *sw = hw->switch_info;
+	struct ice_vsi_list_map_info *v_map;
+	int i;
+
+	v_map = devm_kcalloc(ice_hw_to_dev(hw), 1, sizeof(*v_map), GFP_KERNEL);
+	if (!v_map)
+		return NULL;
+
+	v_map->vsi_list_id = vsi_list_id;
+
+	for (i = 0; i < num_vsi; i++)
+		set_bit(vsi_array[i], v_map->vsi_map);
+
+	list_add(&v_map->list_entry, &sw->vsi_list_map_head);
+	return v_map;
+}
+
+/**
+ * ice_update_vsi_list_rule
+ * @hw: pointer to the hardware structure
+ * @vsi_array: array of VSIs to form a VSI list
+ * @num_vsi: num VSI in the array
+ * @vsi_list_id: VSI list id generated as part of allocate resource
+ * @remove: Boolean value to indicate if this is a remove action
+ * @opc: switch rules population command type - pass in the command opcode
+ * @lkup_type: lookup type of the filter
+ *
+ * Call AQ command to add a new switch rule or update existing switch rule
+ * using the given VSI list id
+ */
+static enum ice_status
+ice_update_vsi_list_rule(struct ice_hw *hw, u16 *vsi_array, u16 num_vsi,
+			 u16 vsi_list_id, bool remove, enum ice_adminq_opc opc,
+			 enum ice_sw_lkup_type lkup_type)
+{
+	struct ice_aqc_sw_rules_elem *s_rule;
+	enum ice_status status;
+	u16 s_rule_size;
+	u16 type;
+	int i;
+
+	if (!num_vsi)
+		return ICE_ERR_PARAM;
+
+	if (lkup_type == ICE_SW_LKUP_MAC ||
+	    lkup_type == ICE_SW_LKUP_MAC_VLAN ||
+	    lkup_type == ICE_SW_LKUP_ETHERTYPE ||
+	    lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
+	    lkup_type == ICE_SW_LKUP_PROMISC ||
+	    lkup_type == ICE_SW_LKUP_PROMISC_VLAN)
+		type = remove ? ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR :
+				ICE_AQC_SW_RULES_T_VSI_LIST_SET;
+	else if (lkup_type == ICE_SW_LKUP_VLAN)
+		type = remove ? ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR :
+				ICE_AQC_SW_RULES_T_PRUNE_LIST_SET;
+	else
+		return ICE_ERR_PARAM;
+
+	s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(num_vsi);
+	s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+
+	for (i = 0; i < num_vsi; i++)
+		s_rule->pdata.vsi_list.vsi[i] = cpu_to_le16(vsi_array[i]);
+
+	s_rule->type = cpu_to_le16(type);
+	s_rule->pdata.vsi_list.number_vsi = cpu_to_le16(num_vsi);
+	s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id);
+
+	status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opc, NULL);
+
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
+/**
+ * ice_create_vsi_list_rule - Creates and populates a VSI list rule
+ * @hw: pointer to the hw struct
+ * @vsi_array: array of VSIs to form a VSI list
+ * @num_vsi: number of VSIs in the array
+ * @vsi_list_id: stores the ID of the VSI list to be created
+ * @lkup_type: switch rule filter's lookup type
+ */
+static enum ice_status
+ice_create_vsi_list_rule(struct ice_hw *hw, u16 *vsi_array, u16 num_vsi,
+			 u16 *vsi_list_id, enum ice_sw_lkup_type lkup_type)
+{
+	enum ice_status status;
+	int i;
+
+	for (i = 0; i < num_vsi; i++)
+		if (vsi_array[i] >= ICE_MAX_VSI)
+			return ICE_ERR_OUT_OF_RANGE;
+
+	status = ice_aq_alloc_free_vsi_list(hw, vsi_list_id, lkup_type,
+					    ice_aqc_opc_alloc_res);
+	if (status)
+		return status;
+
+	/* Update the newly created VSI list to include the specified VSIs */
+	return ice_update_vsi_list_rule(hw, vsi_array, num_vsi, *vsi_list_id,
+					false, ice_aqc_opc_add_sw_rules,
+					lkup_type);
+}
+
+/**
+ * ice_create_pkt_fwd_rule
+ * @hw: pointer to the hardware structure
+ * @f_entry: entry containing packet forwarding information
+ *
+ * Create switch rule with given filter information and add an entry
+ * to the corresponding filter management list to track this switch rule
+ * and VSI mapping
+ */
+static enum ice_status
+ice_create_pkt_fwd_rule(struct ice_hw *hw,
+			struct ice_fltr_list_entry *f_entry)
+{
+	struct ice_switch_info *sw = hw->switch_info;
+	struct ice_fltr_mgmt_list_entry *fm_entry;
+	struct ice_aqc_sw_rules_elem *s_rule;
+	enum ice_sw_lkup_type l_type;
+	enum ice_status status;
+
+	s_rule = devm_kzalloc(ice_hw_to_dev(hw),
+			      ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+	fm_entry = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*fm_entry),
+				GFP_KERNEL);
+	if (!fm_entry) {
+		status = ICE_ERR_NO_MEMORY;
+		goto ice_create_pkt_fwd_rule_exit;
+	}
+
+	fm_entry->fltr_info = f_entry->fltr_info;
+
+	/* Initialize all the fields for the management entry */
+	fm_entry->vsi_count = 1;
+	fm_entry->lg_act_idx = ICE_INVAL_LG_ACT_INDEX;
+	fm_entry->sw_marker_id = ICE_INVAL_SW_MARKER_ID;
+	fm_entry->counter_index = ICE_INVAL_COUNTER_ID;
+
+	ice_fill_sw_rule(hw, &fm_entry->fltr_info, s_rule,
+			 ice_aqc_opc_add_sw_rules);
+
+	status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
+				 ice_aqc_opc_add_sw_rules, NULL);
+	if (status) {
+		devm_kfree(ice_hw_to_dev(hw), fm_entry);
+		goto ice_create_pkt_fwd_rule_exit;
+	}
+
+	f_entry->fltr_info.fltr_rule_id =
+		le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
+	fm_entry->fltr_info.fltr_rule_id =
+		le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
+
+	/* The book keeping entries will get removed when base driver
+	 * calls remove filter AQ command
+	 */
+	l_type = fm_entry->fltr_info.lkup_type;
+	if (l_type == ICE_SW_LKUP_MAC) {
+		mutex_lock(&sw->mac_list_lock);
+		list_add(&fm_entry->list_entry, &sw->mac_list_head);
+		mutex_unlock(&sw->mac_list_lock);
+	} else if (l_type == ICE_SW_LKUP_VLAN) {
+		mutex_lock(&sw->vlan_list_lock);
+		list_add(&fm_entry->list_entry, &sw->vlan_list_head);
+		mutex_unlock(&sw->vlan_list_lock);
+	} else if (l_type == ICE_SW_LKUP_ETHERTYPE ||
+		   l_type == ICE_SW_LKUP_ETHERTYPE_MAC) {
+		mutex_lock(&sw->eth_m_list_lock);
+		list_add(&fm_entry->list_entry, &sw->eth_m_list_head);
+		mutex_unlock(&sw->eth_m_list_lock);
+	} else if (l_type == ICE_SW_LKUP_PROMISC ||
+		   l_type == ICE_SW_LKUP_PROMISC_VLAN) {
+		mutex_lock(&sw->promisc_list_lock);
+		list_add(&fm_entry->list_entry, &sw->promisc_list_head);
+		mutex_unlock(&sw->promisc_list_lock);
+	} else if (fm_entry->fltr_info.lkup_type == ICE_SW_LKUP_MAC_VLAN) {
+		mutex_lock(&sw->mac_vlan_list_lock);
+		list_add(&fm_entry->list_entry, &sw->mac_vlan_list_head);
+		mutex_unlock(&sw->mac_vlan_list_lock);
+	} else {
+		status = ICE_ERR_NOT_IMPL;
+	}
+ice_create_pkt_fwd_rule_exit:
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
+/**
+ * ice_update_pkt_fwd_rule
+ * @hw: pointer to the hardware structure
+ * @rule_id: rule of previously created switch rule to update
+ * @vsi_list_id: VSI list id to be updated with
+ * @f_info: ice_fltr_info to pull other information for switch rule
+ *
+ * Call AQ command to update a previously created switch rule with a
+ * VSI list id
+ */
+static enum ice_status
+ice_update_pkt_fwd_rule(struct ice_hw *hw, u16 rule_id, u16 vsi_list_id,
+			struct ice_fltr_info f_info)
+{
+	struct ice_aqc_sw_rules_elem *s_rule;
+	struct ice_fltr_info tmp_fltr;
+	enum ice_status status;
+
+	s_rule = devm_kzalloc(ice_hw_to_dev(hw),
+			      ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+
+	tmp_fltr = f_info;
+	tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST;
+	tmp_fltr.fwd_id.vsi_list_id = vsi_list_id;
+
+	ice_fill_sw_rule(hw, &tmp_fltr, s_rule,
+			 ice_aqc_opc_update_sw_rules);
+
+	s_rule->pdata.lkup_tx_rx.index = cpu_to_le16(rule_id);
+
+	/* Update switch rule with new rule set to forward VSI list */
+	status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
+				 ice_aqc_opc_update_sw_rules, NULL);
+
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
+/**
+ * ice_handle_vsi_list_mgmt
+ * @hw: pointer to the hardware structure
+ * @m_entry: pointer to current filter management list entry
+ * @cur_fltr: filter information from the book keeping entry
+ * @new_fltr: filter information with the new VSI to be added
+ *
+ * Call AQ command to add or update previously created VSI list with new VSI.
+ *
+ * Helper function to do book keeping associated with adding filter information
+ * The algorithm to do the booking keeping is described below :
+ * When a VSI needs to subscribe to a given filter( MAC/VLAN/Ethtype etc.)
+ *	if only one VSI has been added till now
+ *		Allocate a new VSI list and add two VSIs
+ *		to this list using switch rule command
+ *		Update the previously created switch rule with the
+ *		newly created VSI list id
+ *	if a VSI list was previously created
+ *		Add the new VSI to the previously created VSI list set
+ *		using the update switch rule command
+ */
+static enum ice_status
+ice_handle_vsi_list_mgmt(struct ice_hw *hw,
+			 struct ice_fltr_mgmt_list_entry *m_entry,
+			 struct ice_fltr_info *cur_fltr,
+			 struct ice_fltr_info *new_fltr)
+{
+	enum ice_status status = 0;
+	u16 vsi_list_id = 0;
+
+	if ((cur_fltr->fltr_act == ICE_FWD_TO_Q ||
+	     cur_fltr->fltr_act == ICE_FWD_TO_QGRP))
+		return ICE_ERR_NOT_IMPL;
+
+	if ((new_fltr->fltr_act == ICE_FWD_TO_Q ||
+	     new_fltr->fltr_act == ICE_FWD_TO_QGRP) &&
+	    (cur_fltr->fltr_act == ICE_FWD_TO_VSI ||
+	     cur_fltr->fltr_act == ICE_FWD_TO_VSI_LIST))
+		return ICE_ERR_NOT_IMPL;
+
+	if (m_entry->vsi_count < 2 && !m_entry->vsi_list_info) {
+		/* Only one entry existed in the mapping and it was not already
+		 * a part of a VSI list. So, create a VSI list with the old and
+		 * new VSIs.
+		 */
+		u16 vsi_id_arr[2];
+		u16 fltr_rule;
+
+		/* A rule already exists with the new VSI being added */
+		if (cur_fltr->fwd_id.vsi_id == new_fltr->fwd_id.vsi_id)
+			return ICE_ERR_ALREADY_EXISTS;
+
+		vsi_id_arr[0] = cur_fltr->fwd_id.vsi_id;
+		vsi_id_arr[1] = new_fltr->fwd_id.vsi_id;
+		status = ice_create_vsi_list_rule(hw, &vsi_id_arr[0], 2,
+						  &vsi_list_id,
+						  new_fltr->lkup_type);
+		if (status)
+			return status;
+
+		fltr_rule = cur_fltr->fltr_rule_id;
+		/* Update the previous switch rule of "MAC forward to VSI" to
+		 * "MAC fwd to VSI list"
+		 */
+		status = ice_update_pkt_fwd_rule(hw, fltr_rule, vsi_list_id,
+						 *new_fltr);
+		if (status)
+			return status;
+
+		cur_fltr->fwd_id.vsi_list_id = vsi_list_id;
+		cur_fltr->fltr_act = ICE_FWD_TO_VSI_LIST;
+		m_entry->vsi_list_info =
+			ice_create_vsi_list_map(hw, &vsi_id_arr[0], 2,
+						vsi_list_id);
+
+		/* If this entry was large action then the large action needs
+		 * to be updated to point to FWD to VSI list
+		 */
+		if (m_entry->sw_marker_id != ICE_INVAL_SW_MARKER_ID)
+			status =
+			    ice_add_marker_act(hw, m_entry,
+					       m_entry->sw_marker_id,
+					       m_entry->lg_act_idx);
+	} else {
+		u16 vsi_id = new_fltr->fwd_id.vsi_id;
+		enum ice_adminq_opc opcode;
+
+		/* A rule already exists with the new VSI being added */
+		if (test_bit(vsi_id, m_entry->vsi_list_info->vsi_map))
+			return 0;
+
+		/* Update the previously created VSI list set with
+		 * the new VSI id passed in
+		 */
+		vsi_list_id = cur_fltr->fwd_id.vsi_list_id;
+		opcode = ice_aqc_opc_update_sw_rules;
+
+		status = ice_update_vsi_list_rule(hw, &vsi_id, 1, vsi_list_id,
+						  false, opcode,
+						  new_fltr->lkup_type);
+		/* update VSI list mapping info with new VSI id */
+		if (!status)
+			set_bit(vsi_id, m_entry->vsi_list_info->vsi_map);
+	}
+	if (!status)
+		m_entry->vsi_count++;
+	return status;
+}
+
+/**
+ * ice_find_mac_entry
+ * @hw: pointer to the hardware structure
+ * @mac_addr: MAC address to search for
+ *
+ * Helper function to search for a MAC entry using a given MAC address
+ * Returns pointer to the entry if found.
+ */
+static struct ice_fltr_mgmt_list_entry *
+ice_find_mac_entry(struct ice_hw *hw, u8 *mac_addr)
+{
+	struct ice_fltr_mgmt_list_entry *m_list_itr, *mac_ret = NULL;
+	struct ice_switch_info *sw = hw->switch_info;
+
+	mutex_lock(&sw->mac_list_lock);
+	list_for_each_entry(m_list_itr, &sw->mac_list_head, list_entry) {
+		u8 *buf = &m_list_itr->fltr_info.l_data.mac.mac_addr[0];
+
+		if (ether_addr_equal(buf, mac_addr)) {
+			mac_ret = m_list_itr;
+			break;
+		}
+	}
+	mutex_unlock(&sw->mac_list_lock);
+	return mac_ret;
+}
+
+/**
+ * ice_add_shared_mac - Add one MAC shared filter rule
+ * @hw: pointer to the hardware structure
+ * @f_entry: structure containing MAC forwarding information
+ *
+ * Adds or updates the book keeping list for the MAC addresses
+ */
+static enum ice_status
+ice_add_shared_mac(struct ice_hw *hw, struct ice_fltr_list_entry *f_entry)
+{
+	struct ice_fltr_info *new_fltr, *cur_fltr;
+	struct ice_fltr_mgmt_list_entry *m_entry;
+
+	new_fltr = &f_entry->fltr_info;
+
+	m_entry = ice_find_mac_entry(hw, &new_fltr->l_data.mac.mac_addr[0]);
+	if (!m_entry)
+		return ice_create_pkt_fwd_rule(hw, f_entry);
+
+	cur_fltr = &m_entry->fltr_info;
+
+	return ice_handle_vsi_list_mgmt(hw, m_entry, cur_fltr, new_fltr);
+}
+
+/**
+ * ice_add_mac - Add a MAC address based filter rule
+ * @hw: pointer to the hardware structure
+ * @m_list: list of MAC addresses and forwarding information
+ *
+ * IMPORTANT: When the ucast_shared flag is set to false and m_list has
+ * multiple unicast addresses, the function assumes that all the
+ * addresses are unique in a given add_mac call. It doesn't
+ * check for duplicates in this case, removing duplicates from a given
+ * list should be taken care of in the caller of this function.
+ */
+enum ice_status
+ice_add_mac(struct ice_hw *hw, struct list_head *m_list)
+{
+	struct ice_aqc_sw_rules_elem *s_rule, *r_iter;
+	struct ice_fltr_list_entry *m_list_itr;
+	u16 elem_sent, total_elem_left;
+	enum ice_status status = 0;
+	u16 num_unicast = 0;
+	u16 s_rule_size;
+
+	if (!m_list || !hw)
+		return ICE_ERR_PARAM;
+
+	list_for_each_entry(m_list_itr, m_list, list_entry) {
+		u8 *add = &m_list_itr->fltr_info.l_data.mac.mac_addr[0];
+
+		if (m_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_MAC)
+			return ICE_ERR_PARAM;
+		if (is_zero_ether_addr(add))
+			return ICE_ERR_PARAM;
+		if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
+			/* Don't overwrite the unicast address */
+			if (ice_find_mac_entry(hw, add))
+				return ICE_ERR_ALREADY_EXISTS;
+			num_unicast++;
+		} else if (is_multicast_ether_addr(add) ||
+			   (is_unicast_ether_addr(add) && hw->ucast_shared)) {
+			status = ice_add_shared_mac(hw, m_list_itr);
+			if (status) {
+				m_list_itr->status = ICE_FLTR_STATUS_FW_FAIL;
+				return status;
+			}
+			m_list_itr->status = ICE_FLTR_STATUS_FW_SUCCESS;
+		}
+	}
+
+	/* Exit if no suitable entries were found for adding bulk switch rule */
+	if (!num_unicast)
+		return 0;
+
+	/* Allocate switch rule buffer for the bulk update for unicast */
+	s_rule_size = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE;
+	s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size,
+			      GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+
+	r_iter = s_rule;
+	list_for_each_entry(m_list_itr, m_list, list_entry) {
+		struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
+		u8 *addr = &f_info->l_data.mac.mac_addr[0];
+
+		if (is_unicast_ether_addr(addr)) {
+			ice_fill_sw_rule(hw, &m_list_itr->fltr_info,
+					 r_iter, ice_aqc_opc_add_sw_rules);
+			r_iter = (struct ice_aqc_sw_rules_elem *)
+				((u8 *)r_iter + s_rule_size);
+		}
+	}
+
+	/* Call AQ bulk switch rule update for all unicast addresses */
+	r_iter = s_rule;
+	/* Call AQ switch rule in AQ_MAX chunk */
+	for (total_elem_left = num_unicast; total_elem_left > 0;
+	     total_elem_left -= elem_sent) {
+		struct ice_aqc_sw_rules_elem *entry = r_iter;
+
+		elem_sent = min(total_elem_left,
+				(u16)(ICE_AQ_MAX_BUF_LEN / s_rule_size));
+		status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size,
+					 elem_sent, ice_aqc_opc_add_sw_rules,
+					 NULL);
+		if (status)
+			goto ice_add_mac_exit;
+		r_iter = (struct ice_aqc_sw_rules_elem *)
+			((u8 *)r_iter + (elem_sent * s_rule_size));
+	}
+
+	/* Fill up rule id based on the value returned from FW */
+	r_iter = s_rule;
+	list_for_each_entry(m_list_itr, m_list, list_entry) {
+		struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
+		u8 *addr = &f_info->l_data.mac.mac_addr[0];
+		struct ice_switch_info *sw = hw->switch_info;
+		struct ice_fltr_mgmt_list_entry *fm_entry;
+
+		if (is_unicast_ether_addr(addr)) {
+			f_info->fltr_rule_id =
+				le16_to_cpu(r_iter->pdata.lkup_tx_rx.index);
+			f_info->fltr_act = ICE_FWD_TO_VSI;
+			/* Create an entry to track this MAC address */
+			fm_entry = devm_kzalloc(ice_hw_to_dev(hw),
+						sizeof(*fm_entry), GFP_KERNEL);
+			if (!fm_entry) {
+				status = ICE_ERR_NO_MEMORY;
+				goto ice_add_mac_exit;
+			}
+			fm_entry->fltr_info = *f_info;
+			fm_entry->vsi_count = 1;
+			/* The book keeping entries will get removed when
+			 * base driver calls remove filter AQ command
+			 */
+			mutex_lock(&sw->mac_list_lock);
+			list_add(&fm_entry->list_entry, &sw->mac_list_head);
+			mutex_unlock(&sw->mac_list_lock);
+
+			r_iter = (struct ice_aqc_sw_rules_elem *)
+				((u8 *)r_iter + s_rule_size);
+		}
+	}
+
+ice_add_mac_exit:
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
+/**
+ * ice_remove_vsi_list_rule
+ * @hw: pointer to the hardware structure
+ * @vsi_list_id: VSI list id generated as part of allocate resource
+ * @lkup_type: switch rule filter lookup type
+ */
+static enum ice_status
+ice_remove_vsi_list_rule(struct ice_hw *hw, u16 vsi_list_id,
+			 enum ice_sw_lkup_type lkup_type)
+{
+	struct ice_aqc_sw_rules_elem *s_rule;
+	enum ice_status status;
+	u16 s_rule_size;
+
+	s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(0);
+	s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+
+	s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR);
+	s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id);
+	/* FW expects number of VSIs in vsi_list resource to be 0 for clear
+	 * command. Since memory is zero'ed out during initialization, it's not
+	 * necessary to explicitly initialize the variable to 0.
+	 */
+
+	status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1,
+				 ice_aqc_opc_remove_sw_rules, NULL);
+	if (!status)
+		/* Free the vsi_list resource that we allocated */
+		status = ice_aq_alloc_free_vsi_list(hw, &vsi_list_id, lkup_type,
+						    ice_aqc_opc_free_res);
+
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
+/**
+ * ice_handle_rem_vsi_list_mgmt
+ * @hw: pointer to the hardware structure
+ * @vsi_id: ID of the VSI to remove
+ * @fm_list_itr: filter management entry for which the VSI list management
+ * needs to be done
+ */
+static enum ice_status
+ice_handle_rem_vsi_list_mgmt(struct ice_hw *hw, u16 vsi_id,
+			     struct ice_fltr_mgmt_list_entry *fm_list_itr)
+{
+	struct ice_switch_info *sw = hw->switch_info;
+	enum ice_status status = 0;
+	enum ice_sw_lkup_type lkup_type;
+	bool is_last_elem = true;
+	bool conv_list = false;
+	bool del_list = false;
+	u16 vsi_list_id;
+
+	lkup_type = fm_list_itr->fltr_info.lkup_type;
+	vsi_list_id = fm_list_itr->fltr_info.fwd_id.vsi_list_id;
+
+	if (fm_list_itr->vsi_count > 1) {
+		status = ice_update_vsi_list_rule(hw, &vsi_id, 1, vsi_list_id,
+						  true,
+						  ice_aqc_opc_update_sw_rules,
+						  lkup_type);
+		if (status)
+			return status;
+		fm_list_itr->vsi_count--;
+		is_last_elem = false;
+		clear_bit(vsi_id, fm_list_itr->vsi_list_info->vsi_map);
+	}
+
+	/* For non-VLAN rules that forward packets to a VSI list, convert them
+	 * to forwarding packets to a VSI if there is only one VSI left in the
+	 * list.  Unused lists are then removed.
+	 * VLAN rules need to use VSI lists even with only one VSI.
+	 */
+	if (fm_list_itr->fltr_info.fltr_act == ICE_FWD_TO_VSI_LIST) {
+		if (lkup_type == ICE_SW_LKUP_VLAN) {
+			del_list = is_last_elem;
+		} else if (fm_list_itr->vsi_count == 1) {
+			conv_list = true;
+			del_list = true;
+		}
+	}
+
+	if (del_list) {
+		/* Remove the VSI list since it is no longer used */
+		struct ice_vsi_list_map_info *vsi_list_info =
+			fm_list_itr->vsi_list_info;
+
+		status = ice_remove_vsi_list_rule(hw, vsi_list_id, lkup_type);
+		if (status)
+			return status;
+
+		if (conv_list) {
+			u16 rem_vsi_id;
+
+			rem_vsi_id = find_first_bit(vsi_list_info->vsi_map,
+						    ICE_MAX_VSI);
+
+			/* Error out when the expected last element is not in
+			 * the VSI list map
+			 */
+			if (rem_vsi_id == ICE_MAX_VSI)
+				return ICE_ERR_OUT_OF_RANGE;
+
+			/* Change the list entry action from VSI_LIST to VSI */
+			fm_list_itr->fltr_info.fltr_act = ICE_FWD_TO_VSI;
+			fm_list_itr->fltr_info.fwd_id.vsi_id = rem_vsi_id;
+		}
+
+		list_del(&vsi_list_info->list_entry);
+		devm_kfree(ice_hw_to_dev(hw), vsi_list_info);
+		fm_list_itr->vsi_list_info = NULL;
+	}
+
+	if (conv_list) {
+		/* Convert the rule's forward action to forwarding packets to
+		 * a VSI
+		 */
+		struct ice_aqc_sw_rules_elem *s_rule;
+
+		s_rule = devm_kzalloc(ice_hw_to_dev(hw),
+				      ICE_SW_RULE_RX_TX_ETH_HDR_SIZE,
+				      GFP_KERNEL);
+		if (!s_rule)
+			return ICE_ERR_NO_MEMORY;
+
+		ice_fill_sw_rule(hw, &fm_list_itr->fltr_info, s_rule,
+				 ice_aqc_opc_update_sw_rules);
+
+		s_rule->pdata.lkup_tx_rx.index =
+			cpu_to_le16(fm_list_itr->fltr_info.fltr_rule_id);
+
+		status = ice_aq_sw_rules(hw, s_rule,
+					 ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
+					 ice_aqc_opc_update_sw_rules, NULL);
+		devm_kfree(ice_hw_to_dev(hw), s_rule);
+		if (status)
+			return status;
+	}
+
+	if (is_last_elem) {
+		/* Remove the lookup rule */
+		struct ice_aqc_sw_rules_elem *s_rule;
+
+		s_rule = devm_kzalloc(ice_hw_to_dev(hw),
+				      ICE_SW_RULE_RX_TX_NO_HDR_SIZE,
+				      GFP_KERNEL);
+		if (!s_rule)
+			return ICE_ERR_NO_MEMORY;
+
+		ice_fill_sw_rule(hw, &fm_list_itr->fltr_info, s_rule,
+				 ice_aqc_opc_remove_sw_rules);
+
+		status = ice_aq_sw_rules(hw, s_rule,
+					 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1,
+					 ice_aqc_opc_remove_sw_rules, NULL);
+		if (status)
+			return status;
+
+		/* Remove a book keeping entry from the MAC address list */
+		mutex_lock(&sw->mac_list_lock);
+		list_del(&fm_list_itr->list_entry);
+		mutex_unlock(&sw->mac_list_lock);
+		devm_kfree(ice_hw_to_dev(hw), fm_list_itr);
+		devm_kfree(ice_hw_to_dev(hw), s_rule);
+	}
+	return status;
+}
+
+/**
+ * ice_remove_mac_entry
+ * @hw: pointer to the hardware structure
+ * @f_entry: structure containing MAC forwarding information
+ */
+static enum ice_status
+ice_remove_mac_entry(struct ice_hw *hw, struct ice_fltr_list_entry *f_entry)
+{
+	struct ice_fltr_mgmt_list_entry *m_entry;
+	u16 vsi_id;
+	u8 *add;
+
+	add = &f_entry->fltr_info.l_data.mac.mac_addr[0];
+
+	m_entry = ice_find_mac_entry(hw, add);
+	if (!m_entry)
+		return ICE_ERR_PARAM;
+
+	vsi_id = f_entry->fltr_info.fwd_id.vsi_id;
+	return ice_handle_rem_vsi_list_mgmt(hw, vsi_id, m_entry);
+}
+
+/**
+ * ice_remove_mac - remove a MAC address based filter rule
+ * @hw: pointer to the hardware structure
+ * @m_list: list of MAC addresses and forwarding information
+ *
+ * This function removes either a MAC filter rule or a specific VSI from a
+ * VSI list for a multicast MAC address.
+ *
+ * Returns ICE_ERR_DOES_NOT_EXIST if a given entry was not added by
+ * ice_add_mac. Caller should be aware that this call will only work if all
+ * the entries passed into m_list were added previously. It will not attempt to
+ * do a partial remove of entries that were found.
+ */
+enum ice_status
+ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
+{
+	struct ice_aqc_sw_rules_elem *s_rule, *r_iter;
+	u8 s_rule_size = ICE_SW_RULE_RX_TX_NO_HDR_SIZE;
+	struct ice_switch_info *sw = hw->switch_info;
+	struct ice_fltr_mgmt_list_entry *m_entry;
+	struct ice_fltr_list_entry *m_list_itr;
+	u16 elem_sent, total_elem_left;
+	enum ice_status status = 0;
+	u16 num_unicast = 0;
+
+	if (!m_list)
+		return ICE_ERR_PARAM;
+
+	list_for_each_entry(m_list_itr, m_list, list_entry) {
+		u8 *addr = m_list_itr->fltr_info.l_data.mac.mac_addr;
+
+		if (is_unicast_ether_addr(addr) && !hw->ucast_shared)
+			num_unicast++;
+		else if (is_multicast_ether_addr(addr) ||
+			 (is_unicast_ether_addr(addr) && hw->ucast_shared))
+			ice_remove_mac_entry(hw, m_list_itr);
+	}
+
+	/* Exit if no unicast addresses found. Multicast switch rules
+	 * were added individually
+	 */
+	if (!num_unicast)
+		return 0;
+
+	/* Allocate switch rule buffer for the bulk update for unicast */
+	s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size,
+			      GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+
+	r_iter = s_rule;
+	list_for_each_entry(m_list_itr, m_list, list_entry) {
+		u8 *addr = m_list_itr->fltr_info.l_data.mac.mac_addr;
+
+		if (is_unicast_ether_addr(addr)) {
+			m_entry = ice_find_mac_entry(hw, addr);
+			if (!m_entry) {
+				status = ICE_ERR_DOES_NOT_EXIST;
+				goto ice_remove_mac_exit;
+			}
+
+			ice_fill_sw_rule(hw, &m_entry->fltr_info,
+					 r_iter, ice_aqc_opc_remove_sw_rules);
+			r_iter = (struct ice_aqc_sw_rules_elem *)
+				((u8 *)r_iter + s_rule_size);
+		}
+	}
+
+	/* Call AQ bulk switch rule update for all unicast addresses */
+	r_iter = s_rule;
+	/* Call AQ switch rule in AQ_MAX chunk */
+	for (total_elem_left = num_unicast; total_elem_left > 0;
+	     total_elem_left -= elem_sent) {
+		struct ice_aqc_sw_rules_elem *entry = r_iter;
+
+		elem_sent = min(total_elem_left,
+				(u16)(ICE_AQ_MAX_BUF_LEN / s_rule_size));
+		status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size,
+					 elem_sent, ice_aqc_opc_remove_sw_rules,
+					 NULL);
+		if (status)
+			break;
+		r_iter = (struct ice_aqc_sw_rules_elem *)
+			((u8 *)r_iter + s_rule_size);
+	}
+
+	list_for_each_entry(m_list_itr, m_list, list_entry) {
+		u8 *addr = m_list_itr->fltr_info.l_data.mac.mac_addr;
+
+		if (is_unicast_ether_addr(addr)) {
+			m_entry = ice_find_mac_entry(hw, addr);
+			if (!m_entry)
+				return ICE_ERR_OUT_OF_RANGE;
+			mutex_lock(&sw->mac_list_lock);
+			list_del(&m_entry->list_entry);
+			mutex_unlock(&sw->mac_list_lock);
+			devm_kfree(ice_hw_to_dev(hw), m_entry);
+		}
+	}
+
+ice_remove_mac_exit:
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
+/**
+ * ice_add_to_vsi_fltr_list - Add VSI filters to the list
+ * @hw: pointer to the hardware structure
+ * @vsi_id: ID of VSI to remove filters from
+ * @lkup_list_head: pointer to the list that has certain lookup type filters
+ * @vsi_list_head: pointer to the list pertaining to VSI with vsi_id
+ */
+static enum ice_status
+ice_add_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_id,
+			 struct list_head *lkup_list_head,
+			 struct list_head *vsi_list_head)
+{
+	struct ice_fltr_mgmt_list_entry *fm_entry;
+
+	/* check to make sure VSI id is valid and within boundary */
+	if (vsi_id >=
+	    (sizeof(fm_entry->vsi_list_info->vsi_map) * BITS_PER_BYTE - 1))
+		return ICE_ERR_PARAM;
+
+	list_for_each_entry(fm_entry, lkup_list_head, list_entry) {
+		struct ice_fltr_info *fi;
+
+		fi = &fm_entry->fltr_info;
+		if ((fi->fltr_act == ICE_FWD_TO_VSI &&
+		     fi->fwd_id.vsi_id == vsi_id) ||
+		    (fi->fltr_act == ICE_FWD_TO_VSI_LIST &&
+		     (test_bit(vsi_id, fm_entry->vsi_list_info->vsi_map)))) {
+			struct ice_fltr_list_entry *tmp;
+
+			/* this memory is freed up in the caller function
+			 * ice_remove_vsi_lkup_fltr() once filters for
+			 * this VSI are removed
+			 */
+			tmp = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*tmp),
+					   GFP_KERNEL);
+			if (!tmp)
+				return ICE_ERR_NO_MEMORY;
+
+			memcpy(&tmp->fltr_info, fi, sizeof(*fi));
+
+			/* Expected below fields to be set to ICE_FWD_TO_VSI and
+			 * the particular VSI id since we are only removing this
+			 * one VSI
+			 */
+			if (fi->fltr_act == ICE_FWD_TO_VSI_LIST) {
+				tmp->fltr_info.fltr_act = ICE_FWD_TO_VSI;
+				tmp->fltr_info.fwd_id.vsi_id = vsi_id;
+			}
+
+			list_add(&tmp->list_entry, vsi_list_head);
+		}
+	}
+	return 0;
+}
+
+/**
+ * ice_remove_vsi_lkup_fltr - Remove lookup type filters for a VSI
+ * @hw: pointer to the hardware structure
+ * @vsi_id: ID of VSI to remove filters from
+ * @lkup: switch rule filter lookup type
+ */
+static void
+ice_remove_vsi_lkup_fltr(struct ice_hw *hw, u16 vsi_id,
+			 enum ice_sw_lkup_type lkup)
+{
+	struct ice_switch_info *sw = hw->switch_info;
+	struct ice_fltr_list_entry *fm_entry;
+	struct list_head remove_list_head;
+	struct ice_fltr_list_entry *tmp;
+	enum ice_status status;
+
+	INIT_LIST_HEAD(&remove_list_head);
+	switch (lkup) {
+	case ICE_SW_LKUP_MAC:
+		mutex_lock(&sw->mac_list_lock);
+		status = ice_add_to_vsi_fltr_list(hw, vsi_id,
+						  &sw->mac_list_head,
+						  &remove_list_head);
+		mutex_unlock(&sw->mac_list_lock);
+		if (!status) {
+			ice_remove_mac(hw, &remove_list_head);
+			goto free_fltr_list;
+		}
+		break;
+	case ICE_SW_LKUP_VLAN:
+	case ICE_SW_LKUP_MAC_VLAN:
+	case ICE_SW_LKUP_ETHERTYPE:
+	case ICE_SW_LKUP_ETHERTYPE_MAC:
+	case ICE_SW_LKUP_PROMISC:
+	case ICE_SW_LKUP_PROMISC_VLAN:
+	case ICE_SW_LKUP_DFLT:
+		ice_debug(hw, ICE_DBG_SW,
+			  "Remove filters for this lookup type hasn't been implemented yet\n");
+		break;
+	}
+
+	return;
+free_fltr_list:
+	list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) {
+		list_del(&fm_entry->list_entry);
+		devm_kfree(ice_hw_to_dev(hw), fm_entry);
+	}
+}
+
+/**
+ * ice_remove_vsi_fltr - Remove all filters for a VSI
+ * @hw: pointer to the hardware structure
+ * @vsi_id: ID of VSI to remove filters from
+ */
+void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_id)
+{
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_MAC);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_MAC_VLAN);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_PROMISC);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_VLAN);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_DFLT);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_ETHERTYPE);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_ETHERTYPE_MAC);
+	ice_remove_vsi_lkup_fltr(hw, vsi_id, ICE_SW_LKUP_PROMISC_VLAN);
+}

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

@@ -19,6 +19,122 @@ struct ice_vsi_ctx {
 	bool alloc_from_pool;
 };
 
+enum ice_sw_fwd_act_type {
+	ICE_FWD_TO_VSI = 0,
+	ICE_FWD_TO_VSI_LIST, /* Do not use this when adding filter */
+	ICE_FWD_TO_Q,
+	ICE_FWD_TO_QGRP,
+	ICE_DROP_PACKET,
+	ICE_INVAL_ACT
+};
+
+/* Switch recipe ID enum values are specific to hardware */
+enum ice_sw_lkup_type {
+	ICE_SW_LKUP_ETHERTYPE = 0,
+	ICE_SW_LKUP_MAC = 1,
+	ICE_SW_LKUP_MAC_VLAN = 2,
+	ICE_SW_LKUP_PROMISC = 3,
+	ICE_SW_LKUP_VLAN = 4,
+	ICE_SW_LKUP_DFLT = 5,
+	ICE_SW_LKUP_ETHERTYPE_MAC = 8,
+	ICE_SW_LKUP_PROMISC_VLAN = 9,
+};
+
+struct ice_fltr_info {
+	/* Look up information: how to look up packet */
+	enum ice_sw_lkup_type lkup_type;
+	/* Forward action: filter action to do after lookup */
+	enum ice_sw_fwd_act_type fltr_act;
+	/* rule ID returned by firmware once filter rule is created */
+	u16 fltr_rule_id;
+	u16 flag;
+#define ICE_FLTR_RX		BIT(0)
+#define ICE_FLTR_TX		BIT(1)
+#define ICE_FLTR_TX_RX		(ICE_FLTR_RX | ICE_FLTR_TX)
+
+	/* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
+	u16 src;
+
+	union {
+		struct {
+			u8 mac_addr[ETH_ALEN];
+		} mac;
+		struct {
+			u8 mac_addr[ETH_ALEN];
+			u16 vlan_id;
+		} mac_vlan;
+		struct {
+			u16 vlan_id;
+		} vlan;
+		/* Set lkup_type as ICE_SW_LKUP_ETHERTYPE
+		 * if just using ethertype as filter. Set lkup_type as
+		 * ICE_SW_LKUP_ETHERTYPE_MAC if MAC also needs to be
+		 * passed in as filter.
+		 */
+		struct {
+			u16 ethertype;
+			u8 mac_addr[ETH_ALEN]; /* optional */
+		} ethertype_mac;
+	} l_data;
+
+	/* Depending on filter action */
+	union {
+		/* queue id in case of ICE_FWD_TO_Q and starting
+		 * queue id in case of ICE_FWD_TO_QGRP.
+		 */
+		u16 q_id:11;
+		u16 vsi_id:10;
+		u16 vsi_list_id:10;
+	} fwd_id;
+
+	/* Set to num_queues if action is ICE_FWD_TO_QGRP. This field
+	 * determines the range of queues the packet needs to be forwarded to
+	 */
+	u8 qgrp_size;
+
+	/* Rule creations populate these indicators basing on the switch type */
+	bool lb_en;	/* Indicate if packet can be looped back */
+	bool lan_en;	/* Indicate if packet can be forwarded to the uplink */
+};
+
+/* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list id */
+struct ice_vsi_list_map_info {
+	struct list_head list_entry;
+	DECLARE_BITMAP(vsi_map, ICE_MAX_VSI);
+	u16 vsi_list_id;
+};
+
+enum ice_sw_fltr_status {
+	ICE_FLTR_STATUS_NEW = 0,
+	ICE_FLTR_STATUS_FW_SUCCESS,
+	ICE_FLTR_STATUS_FW_FAIL,
+};
+
+struct ice_fltr_list_entry {
+	struct list_head list_entry;
+	enum ice_sw_fltr_status status;
+	struct ice_fltr_info fltr_info;
+};
+
+/* This defines an entry in the list that maintains MAC or VLAN membership
+ * to HW list mapping, since multiple VSIs can subscribe to the same MAC or
+ * VLAN. As an optimization the VSI list should be created only when a
+ * second VSI becomes a subscriber to the VLAN address.
+ */
+struct ice_fltr_mgmt_list_entry {
+	/* back pointer to VSI list id to VSI list mapping */
+	struct ice_vsi_list_map_info *vsi_list_info;
+	u16 vsi_count;
+#define ICE_INVAL_LG_ACT_INDEX 0xffff
+	u16 lg_act_idx;
+#define ICE_INVAL_SW_MARKER_ID 0xffff
+	u16 sw_marker_id;
+	struct list_head list_entry;
+	struct ice_fltr_info fltr_info;
+#define ICE_INVAL_COUNTER_ID 0xff
+	u8 counter_index;
+};
+
 /* VSI related commands */
 enum ice_status
 ice_aq_add_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
@@ -32,4 +148,8 @@ ice_aq_free_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
 
 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw);
 
+/* Switch/bridge related commands */
+enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_lst);
+enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_lst);
+void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_id);
 #endif /* _ICE_SWITCH_H_ */

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

@@ -223,6 +223,22 @@ struct ice_port_info {
 	bool is_vf;
 };
 
+struct ice_switch_info {
+	/* Switch VSI lists to MAC/VLAN translation */
+	struct mutex mac_list_lock;		/* protect MAC list */
+	struct list_head mac_list_head;
+	struct mutex vlan_list_lock;		/* protect VLAN list */
+	struct list_head vlan_list_head;
+	struct mutex eth_m_list_lock;	/* protect ethtype list */
+	struct list_head eth_m_list_head;
+	struct mutex promisc_list_lock;	/* protect promisc mode list */
+	struct list_head promisc_list_head;
+	struct mutex mac_vlan_list_lock;	/* protect MAC-VLAN list */
+	struct list_head mac_vlan_list_head;
+
+	struct list_head vsi_list_map_head;
+};
+
 /* Port hardware description */
 struct ice_hw {
 	u8 __iomem *hw_addr;
@@ -248,11 +264,14 @@ struct ice_hw {
 	u8 max_cgds;
 	u8 sw_entry_point_layer;
 
+	bool evb_veb;		/* true for VEB, false for VEPA */
 	struct ice_bus_info bus;
 	struct ice_nvm_info nvm;
 	struct ice_hw_dev_caps dev_caps;	/* device capabilities */
 	struct ice_hw_func_caps func_caps;	/* function capabilities */
 
+	struct ice_switch_info *switch_info;	/* switch filter lists */
+
 	/* Control Queue info */
 	struct ice_ctl_q_info adminq;
 
@@ -276,6 +295,8 @@ struct ice_hw {
 	u8 itr_gran_100;
 	u8 itr_gran_50;
 	u8 itr_gran_25;
+	bool ucast_shared;	/* true if VSIs can share unicast addr */
+
 };
 
 /* Checksum and Shadow RAM pointers */