ice: Implement filter sync, NDO operations and bump version

This patch implements multiple pieces of functionality:

1. Added ice_vsi_sync_filters, which is called through the service task
   to push filter updates to the hardware.

2. Add support to enable/disable promiscuous mode on an interface.
   Enabling/disabling promiscuous mode on an interface results in
   addition/removal of a promisc filter rule through ice_vsi_sync_filters.

3. Implement handlers for ndo_set_mac_address, ndo_change_mtu,
   ndo_poll_controller and ndo_set_rx_mode.

This patch also marks the end of the driver addition by bumping up the
driver version.
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.h

@@ -125,11 +125,20 @@ enum ice_state {
 	__ICE_SUSPENDED,		/* set on module remove path */
 	__ICE_RESET_FAILED,		/* set by reset/rebuild */
 	__ICE_ADMINQ_EVENT_PENDING,
+	__ICE_FLTR_OVERFLOW_PROMISC,
 	__ICE_CFG_BUSY,
 	__ICE_SERVICE_SCHED,
 	__ICE_STATE_NBITS		/* must be last */
 };
 
+enum ice_vsi_flags {
+	ICE_VSI_FLAG_UMAC_FLTR_CHANGED,
+	ICE_VSI_FLAG_MMAC_FLTR_CHANGED,
+	ICE_VSI_FLAG_VLAN_FLTR_CHANGED,
+	ICE_VSI_FLAG_PROMISC_CHANGED,
+	ICE_VSI_FLAG_NBITS		/* must be last */
+};
+
 /* struct that defines a VSI, associated with a dev */
 struct ice_vsi {
 	struct net_device *netdev;
@@ -144,7 +153,9 @@ struct ice_vsi {
 
 	u64 tx_linearize;
 	DECLARE_BITMAP(state, __ICE_STATE_NBITS);
+	DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS);
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	unsigned int current_netdev_flags;
 	u32 tx_restart;
 	u32 tx_busy;
 	u32 rx_buf_failed;
@@ -175,6 +186,9 @@ struct ice_vsi {
 	struct ice_eth_stats eth_stats;
 	struct ice_eth_stats eth_stats_prev;
 
+	struct list_head tmp_sync_list;		/* MAC filters to be synced */
+	struct list_head tmp_unsync_list;	/* MAC filters to be unsynced */
+
 	bool irqs_ready;
 	bool current_isup;		 /* Sync 'link up' logging */
 	bool stat_offsets_loaded;

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

@@ -135,6 +135,24 @@ struct ice_aqc_manage_mac_read_resp {
 	u8 mac_addr[ETH_ALEN];
 };
 
+/* Manage MAC address, write command - direct (0x0108) */
+struct ice_aqc_manage_mac_write {
+	u8 port_num;
+	u8 flags;
+#define ICE_AQC_MAN_MAC_WR_MC_MAG_EN		BIT(0)
+#define ICE_AQC_MAN_MAC_WR_WOL_LAA_PFR_KEEP	BIT(1)
+#define ICE_AQC_MAN_MAC_WR_S		6
+#define ICE_AQC_MAN_MAC_WR_M		(3 << ICE_AQC_MAN_MAC_WR_S)
+#define ICE_AQC_MAN_MAC_UPDATE_LAA	0
+#define ICE_AQC_MAN_MAC_UPDATE_LAA_WOL	(BIT(0) << ICE_AQC_MAN_MAC_WR_S)
+	/* High 16 bits of MAC address in big endian order */
+	__be16 sah;
+	/* Low 32 bits of MAC address in big endian order */
+	__be32 sal;
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
 /* Clear PXE Command and response (direct 0x0110) */
 struct ice_aqc_clear_pxe {
 	u8 rx_cnt;
@@ -1214,6 +1232,7 @@ struct ice_aq_desc {
 		struct ice_aqc_q_shutdown q_shutdown;
 		struct ice_aqc_req_res res_owner;
 		struct ice_aqc_manage_mac_read mac_read;
+		struct ice_aqc_manage_mac_write mac_write;
 		struct ice_aqc_clear_pxe clear_pxe;
 		struct ice_aqc_list_caps get_cap;
 		struct ice_aqc_get_phy_caps get_phy;
@@ -1258,6 +1277,7 @@ enum ice_aq_err {
 	ICE_AQ_RC_ENOMEM	= 9,  /* Out of memory */
 	ICE_AQ_RC_EBUSY		= 12, /* Device or resource busy */
 	ICE_AQ_RC_EEXIST	= 13, /* object already exists */
+	ICE_AQ_RC_ENOSPC	= 16, /* No space left or allocation failure */
 };
 
 /* Admin Queue command opcodes */
@@ -1276,6 +1296,7 @@ enum ice_adminq_opc {
 
 	/* manage MAC address */
 	ice_aqc_opc_manage_mac_read			= 0x0107,
+	ice_aqc_opc_manage_mac_write			= 0x0108,
 
 	/* PXE */
 	ice_aqc_opc_clear_pxe_mode			= 0x0110,

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

@@ -1232,6 +1232,34 @@ enum ice_status ice_get_caps(struct ice_hw *hw)
 	return status;
 }
 
+/**
+ * ice_aq_manage_mac_write - manage MAC address write command
+ * @hw: pointer to the hw struct
+ * @mac_addr: MAC address to be written as LAA/LAA+WoL/Port address
+ * @flags: flags to control write behavior
+ * @cd: pointer to command details structure or NULL
+ *
+ * This function is used to write MAC address to the NVM (0x0108).
+ */
+enum ice_status
+ice_aq_manage_mac_write(struct ice_hw *hw, u8 *mac_addr, u8 flags,
+			struct ice_sq_cd *cd)
+{
+	struct ice_aqc_manage_mac_write *cmd;
+	struct ice_aq_desc desc;
+
+	cmd = &desc.params.mac_write;
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_manage_mac_write);
+
+	cmd->flags = flags;
+
+	/* Prep values for flags, sah, sal */
+	cmd->sah = htons(*((u16 *)mac_addr));
+	cmd->sal = htonl(*((u32 *)(mac_addr + 2)));
+
+	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
+}
+
 /**
  * ice_aq_clear_pxe_mode
  * @hw: pointer to the hw struct

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

@@ -58,6 +58,9 @@ enum ice_status
 ice_aq_send_cmd(struct ice_hw *hw, struct ice_aq_desc *desc,
 		void *buf, u16 buf_size, struct ice_sq_cd *cd);
 enum ice_status ice_aq_get_fw_ver(struct ice_hw *hw, struct ice_sq_cd *cd);
+enum ice_status
+ice_aq_manage_mac_write(struct ice_hw *hw, u8 *mac_addr, u8 flags,
+			struct ice_sq_cd *cd);
 enum ice_status ice_clear_pf_cfg(struct ice_hw *hw);
 enum ice_status
 ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool atomic_restart);

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

@@ -353,6 +353,18 @@ enum ice_tx_desc_len_fields {
 	ICE_TX_DESC_LEN_L4_LEN_S	= 14 /* 4 BITS */
 };
 
+#define ICE_TXD_QW1_MACLEN_M (0x7FUL << ICE_TX_DESC_LEN_MACLEN_S)
+#define ICE_TXD_QW1_IPLEN_M  (0x7FUL << ICE_TX_DESC_LEN_IPLEN_S)
+#define ICE_TXD_QW1_L4LEN_M  (0xFUL << ICE_TX_DESC_LEN_L4_LEN_S)
+
+/* Tx descriptor field limits in bytes */
+#define ICE_TXD_MACLEN_MAX ((ICE_TXD_QW1_MACLEN_M >> \
+			     ICE_TX_DESC_LEN_MACLEN_S) * ICE_BYTES_PER_WORD)
+#define ICE_TXD_IPLEN_MAX ((ICE_TXD_QW1_IPLEN_M >> \
+			    ICE_TX_DESC_LEN_IPLEN_S) * ICE_BYTES_PER_DWORD)
+#define ICE_TXD_L4LEN_MAX ((ICE_TXD_QW1_L4LEN_M >> \
+			    ICE_TX_DESC_LEN_L4_LEN_S) * ICE_BYTES_PER_DWORD)
+
 #define ICE_TXD_QW1_TX_BUF_SZ_S	34
 #define ICE_TXD_QW1_L2TAG1_S	48
 

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

@@ -1626,6 +1626,83 @@ ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
 	return status;
 }
 
+/**
+ * ice_cfg_dflt_vsi - add filter rule to set/unset given VSI as default
+ * VSI for the switch (represented by swid)
+ * @hw: pointer to the hardware structure
+ * @vsi_id: number of VSI to set as default
+ * @set: true to add the above mentioned switch rule, false to remove it
+ * @direction: ICE_FLTR_RX or ICE_FLTR_TX
+ */
+enum ice_status
+ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_id, bool set, u8 direction)
+{
+	struct ice_aqc_sw_rules_elem *s_rule;
+	struct ice_fltr_info f_info;
+	enum ice_adminq_opc opcode;
+	enum ice_status status;
+	u16 s_rule_size;
+
+	s_rule_size = set ? ICE_SW_RULE_RX_TX_ETH_HDR_SIZE :
+			    ICE_SW_RULE_RX_TX_NO_HDR_SIZE;
+	s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
+	if (!s_rule)
+		return ICE_ERR_NO_MEMORY;
+
+	memset(&f_info, 0, sizeof(f_info));
+
+	f_info.lkup_type = ICE_SW_LKUP_DFLT;
+	f_info.flag = direction;
+	f_info.fltr_act = ICE_FWD_TO_VSI;
+	f_info.fwd_id.vsi_id = vsi_id;
+
+	if (f_info.flag & ICE_FLTR_RX) {
+		f_info.src = hw->port_info->lport;
+		if (!set)
+			f_info.fltr_rule_id =
+				hw->port_info->dflt_rx_vsi_rule_id;
+	} else if (f_info.flag & ICE_FLTR_TX) {
+		f_info.src = vsi_id;
+		if (!set)
+			f_info.fltr_rule_id =
+				hw->port_info->dflt_tx_vsi_rule_id;
+	}
+
+	if (set)
+		opcode = ice_aqc_opc_add_sw_rules;
+	else
+		opcode = ice_aqc_opc_remove_sw_rules;
+
+	ice_fill_sw_rule(hw, &f_info, s_rule, opcode);
+
+	status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opcode, NULL);
+	if (status || !(f_info.flag & ICE_FLTR_TX_RX))
+		goto out;
+	if (set) {
+		u16 index = le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
+
+		if (f_info.flag & ICE_FLTR_TX) {
+			hw->port_info->dflt_tx_vsi_num = vsi_id;
+			hw->port_info->dflt_tx_vsi_rule_id = index;
+		} else if (f_info.flag & ICE_FLTR_RX) {
+			hw->port_info->dflt_rx_vsi_num = vsi_id;
+			hw->port_info->dflt_rx_vsi_rule_id = index;
+		}
+	} else {
+		if (f_info.flag & ICE_FLTR_TX) {
+			hw->port_info->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL;
+			hw->port_info->dflt_tx_vsi_rule_id = ICE_INVAL_ACT;
+		} else if (f_info.flag & ICE_FLTR_RX) {
+			hw->port_info->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL;
+			hw->port_info->dflt_rx_vsi_rule_id = ICE_INVAL_ACT;
+		}
+	}
+
+out:
+	devm_kfree(ice_hw_to_dev(hw), s_rule);
+	return status;
+}
+
 /**
  * ice_remove_vlan_internal - Remove one VLAN based filter rule
  * @hw: pointer to the hardware structure

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

@@ -155,5 +155,7 @@ 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);
 enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
 enum ice_status ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list);
+enum ice_status
+ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_id, bool set, u8 direction);
 
 #endif /* _ICE_SWITCH_H_ */

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

@@ -10,6 +10,9 @@
 #include "ice_controlq.h"
 #include "ice_lan_tx_rx.h"
 
+#define ICE_BYTES_PER_WORD	2
+#define ICE_BYTES_PER_DWORD	4
+
 static inline bool ice_is_tc_ena(u8 bitmap, u8 tc)
 {
 	return test_bit(tc, (unsigned long *)&bitmap);
@@ -227,7 +230,9 @@ struct ice_port_info {
 	u8 port_state;
 #define ICE_SCHED_PORT_STATE_INIT	0x0
 #define ICE_SCHED_PORT_STATE_READY	0x1
+	u16 dflt_tx_vsi_rule_id;
 	u16 dflt_tx_vsi_num;
+	u16 dflt_rx_vsi_rule_id;
 	u16 dflt_rx_vsi_num;
 	struct ice_fc_info fc;
 	struct ice_mac_info mac;