text: // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
  /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
  
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/types.h>
  #include <linux/pci.h>
  #include <linux/netdevice.h>
  #include <linux/etherdevice.h>
  #include <linux/ethtool.h>
  #include <linux/slab.h>
  #include <linux/device.h>
  #include <linux/skbuff.h>
  #include <linux/if_vlan.h>
  #include <linux/if_bridge.h>
  #include <linux/workqueue.h>
  #include <linux/jiffies.h>
  #include <linux/bitops.h>
  #include <linux/list.h>
  #include <linux/notifier.h>
  #include <linux/dcbnl.h>
  #include <linux/inetdevice.h>
  #include <linux/netlink.h>
  #include <linux/jhash.h>
  #include <net/switchdev.h>
  #include <net/pkt_cls.h>
  #include <net/tc_act/tc_mirred.h>
  #include <net/netevent.h>
  #include <net/tc_act/tc_sample.h>
  #include <net/addrconf.h>
  
  #include "spectrum.h"
  #include "pci.h"
  #include "core.h"
  #include "core_env.h"
  #include "reg.h"
  #include "port.h"
  #include "trap.h"
  #include "txheader.h"
  #include "spectrum_cnt.h"
  #include "spectrum_dpipe.h"
  #include "spectrum_acl_flex_actions.h"
  #include "spectrum_span.h"
  #include "spectrum_ptp.h"
  #include "../mlxfw/mlxfw.h"
  
  #define MLXSW_SP_FWREV_MINOR_TO_BRANCH(minor) ((minor) / 100)
  
  #define MLXSW_SP1_FWREV_MAJOR 13
  #define MLXSW_SP1_FWREV_MINOR 2000
  #define MLXSW_SP1_FWREV_SUBMINOR 1886
  #define MLXSW_SP1_FWREV_CAN_RESET_MINOR 1702
  
  static const struct mlxsw_fw_rev mlxsw_sp1_fw_rev = {
  	.major = MLXSW_SP1_FWREV_MAJOR,
  	.minor = MLXSW_SP1_FWREV_MINOR,
  	.subminor = MLXSW_SP1_FWREV_SUBMINOR,
  	.can_reset_minor = MLXSW_SP1_FWREV_CAN_RESET_MINOR,
  };
  
  #define MLXSW_SP1_FW_FILENAME \
  	"mellanox/mlxsw_spectrum-" __stringify(MLXSW_SP1_FWREV_MAJOR) \
  	"." __stringify(MLXSW_SP1_FWREV_MINOR) \
  	"." __stringify(MLXSW_SP1_FWREV_SUBMINOR) ".mfa2"
  
  static const char mlxsw_sp1_driver_name[] = "mlxsw_spectrum";
  static const char mlxsw_sp2_driver_name[] = "mlxsw_spectrum2";
  static const char mlxsw_sp3_driver_name[] = "mlxsw_spectrum3";
  static const char mlxsw_sp_driver_version[] = "1.0";
  
  static const unsigned char mlxsw_sp1_mac_mask[ETH_ALEN] = {
  	0xff, 0xff, 0xff, 0xff, 0xfc, 0x00
  };
  static const unsigned char mlxsw_sp2_mac_mask[ETH_ALEN] = {
  	0xff, 0xff, 0xff, 0xff, 0xf0, 0x00
  };
  
  /* tx_hdr_version
   * Tx header version.
   * Must be set to 1.
   */
  MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
  
  /* tx_hdr_ctl
   * Packet control type.
   * 0 - Ethernet control (e.g. EMADs, LACP)
   * 1 - Ethernet data
   */
  MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
  
  /* tx_hdr_proto
   * Packet protocol type. Must be set to 1 (Ethernet).
   */
  MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
  
  /* tx_hdr_rx_is_router
   * Packet is sent from the router. Valid for data packets only.
   */
  MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);
  
  /* tx_hdr_fid_valid
   * Indicates if the 'fid' field is valid and should be used for
   * forwarding lookup. Valid for data packets only.
   */
  MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);
  
  /* tx_hdr_swid
   * Switch partition ID. Must be set to 0.
   */
  MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
  
  /* tx_hdr_control_tclass
   * Indicates if the packet should use the control TClass and not one
   * of the data TClasses.
   */
  MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);
  
  /* tx_hdr_etclass
   * Egress TClass to be used on the egress device on the egress port.
   */
  MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);
  
  /* tx_hdr_port_mid
   * Destination local port for unicast packets.
   * Destination multicast ID for multicast packets.
   *
   * Control packets are directed to a specific egress port, while data
   * packets are transmitted through the CPU port (0) into the switch partition,
   * where forwarding rules are applied.
   */
  MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
  
  /* tx_hdr_fid
   * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
   * set, otherwise calculated based on the packet's VID using VID to FID mapping.
   * Valid for data packets only.
   */
  MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);
  
  /* tx_hdr_type
   * 0 - Data packets
   * 6 - Control packets
   */
  MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
  
  struct mlxsw_sp_mlxfw_dev {
  	struct mlxfw_dev mlxfw_dev;
  	struct mlxsw_sp *mlxsw_sp;
  };
  
  struct mlxsw_sp_ptp_ops {
  	struct mlxsw_sp_ptp_clock *
  		(*clock_init)(struct mlxsw_sp *mlxsw_sp, struct device *dev);
  	void (*clock_fini)(struct mlxsw_sp_ptp_clock *clock);
  
  	struct mlxsw_sp_ptp_state *(*init)(struct mlxsw_sp *mlxsw_sp);
  	void (*fini)(struct mlxsw_sp_ptp_state *ptp_state);
  
  	/* Notify a driver that a packet that might be PTP was received. Driver
  	 * is responsible for freeing the passed-in SKB.
  	 */
  	void (*receive)(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
  			u8 local_port);
  
  	/* Notify a driver that a timestamped packet was transmitted. Driver
  	 * is responsible for freeing the passed-in SKB.
  	 */
  	void (*transmitted)(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
  			    u8 local_port);
  
  	int (*hwtstamp_get)(struct mlxsw_sp_port *mlxsw_sp_port,
  			    struct hwtstamp_config *config);
  	int (*hwtstamp_set)(struct mlxsw_sp_port *mlxsw_sp_port,
  			    struct hwtstamp_config *config);
  	void (*shaper_work)(struct work_struct *work);
  	int (*get_ts_info)(struct mlxsw_sp *mlxsw_sp,
  			   struct ethtool_ts_info *info);
  	int (*get_stats_count)(void);
  	void (*get_stats_strings)(u8 **p);
  	void (*get_stats)(struct mlxsw_sp_port *mlxsw_sp_port,
  			  u64 *data, int data_index);
  };
  
  static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev,
  				    u16 component_index, u32 *p_max_size,
  				    u8 *p_align_bits, u16 *p_max_write_size)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcqi_pl[MLXSW_REG_MCQI_LEN];
  	int err;
  
  	mlxsw_reg_mcqi_pack(mcqi_pl, component_index);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcqi), mcqi_pl);
  	if (err)
  		return err;
  	mlxsw_reg_mcqi_unpack(mcqi_pl, p_max_size, p_align_bits,
  			      p_max_write_size);
  
  	*p_align_bits = max_t(u8, *p_align_bits, 2);
  	*p_max_write_size = min_t(u16, *p_max_write_size,
  				  MLXSW_REG_MCDA_MAX_DATA_LEN);
  	return 0;
  }
  
  static int mlxsw_sp_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  	u8 control_state;
  	int err;
  
  	mlxsw_reg_mcc_pack(mcc_pl, 0, 0, 0, 0);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  	if (err)
  		return err;
  
  	mlxsw_reg_mcc_unpack(mcc_pl, fwhandle, NULL, &control_state);
  	if (control_state != MLXFW_FSM_STATE_IDLE)
  		return -EBUSY;
  
  	mlxsw_reg_mcc_pack(mcc_pl,
  			   MLXSW_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE,
  			   0, *fwhandle, 0);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  }
  
  static int mlxsw_sp_fsm_component_update(struct mlxfw_dev *mlxfw_dev,
  					 u32 fwhandle, u16 component_index,
  					 u32 component_size)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  
  	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_UPDATE_COMPONENT,
  			   component_index, fwhandle, component_size);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  }
  
  static int mlxsw_sp_fsm_block_download(struct mlxfw_dev *mlxfw_dev,
  				       u32 fwhandle, u8 *data, u16 size,
  				       u32 offset)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcda_pl[MLXSW_REG_MCDA_LEN];
  
  	mlxsw_reg_mcda_pack(mcda_pl, fwhandle, offset, size, data);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcda), mcda_pl);
  }
  
  static int mlxsw_sp_fsm_component_verify(struct mlxfw_dev *mlxfw_dev,
  					 u32 fwhandle, u16 component_index)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  
  	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_VERIFY_COMPONENT,
  			   component_index, fwhandle, 0);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  }
  
  static int mlxsw_sp_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  
  	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_ACTIVATE, 0,
  			   fwhandle, 0);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  }
  
  static int mlxsw_sp_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
  				    enum mlxfw_fsm_state *fsm_state,
  				    enum mlxfw_fsm_state_err *fsm_state_err)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  	u8 control_state;
  	u8 error_code;
  	int err;
  
  	mlxsw_reg_mcc_pack(mcc_pl, 0, 0, fwhandle, 0);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  	if (err)
  		return err;
  
  	mlxsw_reg_mcc_unpack(mcc_pl, NULL, &error_code, &control_state);
  	*fsm_state = control_state;
  	*fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code,
  			       MLXFW_FSM_STATE_ERR_MAX);
  	return 0;
  }
  
  static void mlxsw_sp_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  
  	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_CANCEL, 0,
  			   fwhandle, 0);
  	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  }
  
  static void mlxsw_sp_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  	char mcc_pl[MLXSW_REG_MCC_LEN];
  
  	mlxsw_reg_mcc_pack(mcc_pl,
  			   MLXSW_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0,
  			   fwhandle, 0);
  	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
  }
  
  static void mlxsw_sp_status_notify(struct mlxfw_dev *mlxfw_dev,
  				   const char *msg, const char *comp_name,
  				   u32 done_bytes, u32 total_bytes)
  {
  	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
  		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
  
  	devlink_flash_update_status_notify(priv_to_devlink(mlxsw_sp->core),
  					   msg, comp_name,
  					   done_bytes, total_bytes);
  }
  
  static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = {
  	.component_query	= mlxsw_sp_component_query,
  	.fsm_lock		= mlxsw_sp_fsm_lock,
  	.fsm_component_update	= mlxsw_sp_fsm_component_update,
  	.fsm_block_download	= mlxsw_sp_fsm_block_download,
  	.fsm_component_verify	= mlxsw_sp_fsm_component_verify,
  	.fsm_activate		= mlxsw_sp_fsm_activate,
  	.fsm_query_state	= mlxsw_sp_fsm_query_state,
  	.fsm_cancel		= mlxsw_sp_fsm_cancel,
  	.fsm_release		= mlxsw_sp_fsm_release,
  	.status_notify		= mlxsw_sp_status_notify,
  };
  
  static int mlxsw_sp_firmware_flash(struct mlxsw_sp *mlxsw_sp,
  				   const struct firmware *firmware,
  				   struct netlink_ext_ack *extack)
  {
  	struct mlxsw_sp_mlxfw_dev mlxsw_sp_mlxfw_dev = {
  		.mlxfw_dev = {
  			.ops = &mlxsw_sp_mlxfw_dev_ops,
  			.psid = mlxsw_sp->bus_info->psid,
  			.psid_size = strlen(mlxsw_sp->bus_info->psid),
  		},
  		.mlxsw_sp = mlxsw_sp
  	};
  	int err;
  
  	mlxsw_core_fw_flash_start(mlxsw_sp->core);
  	devlink_flash_update_begin_notify(priv_to_devlink(mlxsw_sp->core));
  	err = mlxfw_firmware_flash(&mlxsw_sp_mlxfw_dev.mlxfw_dev,
  				   firmware, extack);
  	devlink_flash_update_end_notify(priv_to_devlink(mlxsw_sp->core));
  	mlxsw_core_fw_flash_end(mlxsw_sp->core);
  
  	return err;
  }
  
  static int mlxsw_sp_fw_rev_validate(struct mlxsw_sp *mlxsw_sp)
  {
  	const struct mlxsw_fw_rev *rev = &mlxsw_sp->bus_info->fw_rev;
  	const struct mlxsw_fw_rev *req_rev = mlxsw_sp->req_rev;
  	const char *fw_filename = mlxsw_sp->fw_filename;
  	union devlink_param_value value;
  	const struct firmware *firmware;
  	int err;
  
  	/* Don't check if driver does not require it */
  	if (!req_rev || !fw_filename)
  		return 0;
  
  	/* Don't check if devlink 'fw_load_policy' param is 'flash' */
  	err = devlink_param_driverinit_value_get(priv_to_devlink(mlxsw_sp->core),
  						 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
  						 &value);
  	if (err)
  		return err;
  	if (value.vu8 == DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH)
  		return 0;
  
  	/* Validate driver & FW are compatible */
  	if (rev->major != req_rev->major) {
  		WARN(1, "Mismatch in major FW version [%d:%d] is never expected; Please contact support\n",
  		     rev->major, req_rev->major);
  		return -EINVAL;
  	}
  	if (MLXSW_SP_FWREV_MINOR_TO_BRANCH(rev->minor) ==
  	    MLXSW_SP_FWREV_MINOR_TO_BRANCH(req_rev->minor) &&
  	    (rev->minor > req_rev->minor ||
  	     (rev->minor == req_rev->minor &&
  	      rev->subminor >= req_rev->subminor)))
  		return 0;
  
  	dev_info(mlxsw_sp->bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver\n",
  		 rev->major, rev->minor, rev->subminor);
  	dev_info(mlxsw_sp->bus_info->dev, "Flashing firmware using file %s\n",
  		 fw_filename);
  
  	err = request_firmware_direct(&firmware, fw_filename,
  				      mlxsw_sp->bus_info->dev);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Could not request firmware file %s\n",
  			fw_filename);
  		return err;
  	}
  
  	err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware, NULL);
  	release_firmware(firmware);
  	if (err)
  		dev_err(mlxsw_sp->bus_info->dev, "Could not upgrade firmware\n");
  
  	/* On FW flash success, tell the caller FW reset is needed
  	 * if current FW supports it.
  	 */
  	if (rev->minor >= req_rev->can_reset_minor)
  		return err ? err : -EAGAIN;
  	else
  		return 0;
  }
  
  static int mlxsw_sp_flash_update(struct mlxsw_core *mlxsw_core,
  				 const char *file_name, const char *component,
  				 struct netlink_ext_ack *extack)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  	const struct firmware *firmware;
  	int err;
  
  	if (component)
  		return -EOPNOTSUPP;
  
  	err = request_firmware_direct(&firmware, file_name,
  				      mlxsw_sp->bus_info->dev);
  	if (err)
  		return err;
  	err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware, extack);
  	release_firmware(firmware);
  
  	return err;
  }
  
  int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp,
  			      unsigned int counter_index, u64 *packets,
  			      u64 *bytes)
  {
  	char mgpc_pl[MLXSW_REG_MGPC_LEN];
  	int err;
  
  	mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP,
  			    MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
  	if (err)
  		return err;
  	if (packets)
  		*packets = mlxsw_reg_mgpc_packet_counter_get(mgpc_pl);
  	if (bytes)
  		*bytes = mlxsw_reg_mgpc_byte_counter_get(mgpc_pl);
  	return 0;
  }
  
  static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp,
  				       unsigned int counter_index)
  {
  	char mgpc_pl[MLXSW_REG_MGPC_LEN];
  
  	mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR,
  			    MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
  }
  
  int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp,
  				unsigned int *p_counter_index)
  {
  	int err;
  
  	err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
  				     p_counter_index);
  	if (err)
  		return err;
  	err = mlxsw_sp_flow_counter_clear(mlxsw_sp, *p_counter_index);
  	if (err)
  		goto err_counter_clear;
  	return 0;
  
  err_counter_clear:
  	mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
  			      *p_counter_index);
  	return err;
  }
  
  void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp,
  				unsigned int counter_index)
  {
  	 mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
  			       counter_index);
  }
  
  static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
  				     const struct mlxsw_tx_info *tx_info)
  {
  	char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
  
  	memset(txhdr, 0, MLXSW_TXHDR_LEN);
  
  	mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
  	mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
  	mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
  	mlxsw_tx_hdr_swid_set(txhdr, 0);
  	mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
  	mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
  	mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
  }
  
  enum mlxsw_reg_spms_state mlxsw_sp_stp_spms_state(u8 state)
  {
  	switch (state) {
  	case BR_STATE_FORWARDING:
  		return MLXSW_REG_SPMS_STATE_FORWARDING;
  	case BR_STATE_LEARNING:
  		return MLXSW_REG_SPMS_STATE_LEARNING;
  	case BR_STATE_LISTENING: /* fall-through */
  	case BR_STATE_DISABLED: /* fall-through */
  	case BR_STATE_BLOCKING:
  		return MLXSW_REG_SPMS_STATE_DISCARDING;
  	default:
  		BUG();
  	}
  }
  
  int mlxsw_sp_port_vid_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
  			      u8 state)
  {
  	enum mlxsw_reg_spms_state spms_state = mlxsw_sp_stp_spms_state(state);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char *spms_pl;
  	int err;
  
  	spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
  	if (!spms_pl)
  		return -ENOMEM;
  	mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
  	mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
  
  	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
  	kfree(spms_pl);
  	return err;
  }
  
  static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
  {
  	char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
  	int err;
  
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
  	if (err)
  		return err;
  	mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
  	return 0;
  }
  
  static int mlxsw_sp_port_sample_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				    bool enable, u32 rate)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char mpsc_pl[MLXSW_REG_MPSC_LEN];
  
  	mlxsw_reg_mpsc_pack(mpsc_pl, mlxsw_sp_port->local_port, enable, rate);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpsc), mpsc_pl);
  }
  
  static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
  					  bool is_up)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char paos_pl[MLXSW_REG_PAOS_LEN];
  
  	mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
  			    is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
  			    MLXSW_PORT_ADMIN_STATUS_DOWN);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
  }
  
  static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				      unsigned char *addr)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char ppad_pl[MLXSW_REG_PPAD_LEN];
  
  	mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
  	mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
  }
  
  static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	unsigned char *addr = mlxsw_sp_port->dev->dev_addr;
  
  	ether_addr_copy(addr, mlxsw_sp->base_mac);
  	addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
  	return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
  }
  
  static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char pmtu_pl[MLXSW_REG_PMTU_LEN];
  	int max_mtu;
  	int err;
  
  	mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
  	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
  	if (err)
  		return err;
  	max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
  
  	if (mtu > max_mtu)
  		return -EINVAL;
  
  	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
  }
  
  static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char pspa_pl[MLXSW_REG_PSPA_LEN];
  
  	mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
  }
  
  int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char svpe_pl[MLXSW_REG_SVPE_LEN];
  
  	mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
  }
  
  int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
  				   bool learn_enable)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char *spvmlr_pl;
  	int err;
  
  	spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
  	if (!spvmlr_pl)
  		return -ENOMEM;
  	mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
  			      learn_enable);
  	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
  	kfree(spvmlr_pl);
  	return err;
  }
  
  static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				    u16 vid)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char spvid_pl[MLXSW_REG_SPVID_LEN];
  
  	mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
  }
  
  static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
  					    bool allow)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char spaft_pl[MLXSW_REG_SPAFT_LEN];
  
  	mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
  }
  
  int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
  {
  	int err;
  
  	if (!vid) {
  		err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
  		if (err)
  			return err;
  	} else {
  		err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
  		if (err)
  			return err;
  		err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, true);
  		if (err)
  			goto err_port_allow_untagged_set;
  	}
  
  	mlxsw_sp_port->pvid = vid;
  	return 0;
  
  err_port_allow_untagged_set:
  	__mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
  	return err;
  }
  
  static int
  mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char sspr_pl[MLXSW_REG_SSPR_LEN];
  
  	mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
  }
  
  static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
  					 u8 local_port, u8 *p_module,
  					 u8 *p_width, u8 *p_lane)
  {
  	char pmlp_pl[MLXSW_REG_PMLP_LEN];
  	int err;
  
  	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
  	if (err)
  		return err;
  	*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
  	*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
  	*p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
  	return 0;
  }
  
  static int mlxsw_sp_port_module_map(struct mlxsw_sp_port *mlxsw_sp_port,
  				    u8 module, u8 width, u8 lane)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char pmlp_pl[MLXSW_REG_PMLP_LEN];
  	int i;
  
  	mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port);
  	mlxsw_reg_pmlp_width_set(pmlp_pl, width);
  	for (i = 0; i < width; i++) {
  		mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
  		mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i);  /* Rx & Tx */
  	}
  
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
  }
  
  static int mlxsw_sp_port_module_unmap(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char pmlp_pl[MLXSW_REG_PMLP_LEN];
  
  	mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port);
  	mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
  }
  
  static int mlxsw_sp_port_open(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	int err;
  
  	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
  	if (err)
  		return err;
  	netif_start_queue(dev);
  	return 0;
  }
  
  static int mlxsw_sp_port_stop(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	netif_stop_queue(dev);
  	return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
  }
  
  static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
  				      struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
  	const struct mlxsw_tx_info tx_info = {
  		.local_port = mlxsw_sp_port->local_port,
  		.is_emad = false,
  	};
  	u64 len;
  	int err;
  
  	if (skb_cow_head(skb, MLXSW_TXHDR_LEN)) {
  		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
  		dev_kfree_skb_any(skb);
  		return NETDEV_TX_OK;
  	}
  
  	memset(skb->cb, 0, sizeof(struct mlxsw_skb_cb));
  
  	if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
  		return NETDEV_TX_BUSY;
  
  	if (eth_skb_pad(skb)) {
  		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
  		return NETDEV_TX_OK;
  	}
  
  	mlxsw_sp_txhdr_construct(skb, &tx_info);
  	/* TX header is consumed by HW on the way so we shouldn't count its
  	 * bytes as being sent.
  	 */
  	len = skb->len - MLXSW_TXHDR_LEN;
  
  	/* Due to a race we might fail here because of a full queue. In that
  	 * unlikely case we simply drop the packet.
  	 */
  	err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
  
  	if (!err) {
  		pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
  		u64_stats_update_begin(&pcpu_stats->syncp);
  		pcpu_stats->tx_packets++;
  		pcpu_stats->tx_bytes += len;
  		u64_stats_update_end(&pcpu_stats->syncp);
  	} else {
  		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
  		dev_kfree_skb_any(skb);
  	}
  	return NETDEV_TX_OK;
  }
  
  static void mlxsw_sp_set_rx_mode(struct net_device *dev)
  {
  }
  
  static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct sockaddr *addr = p;
  	int err;
  
  	if (!is_valid_ether_addr(addr->sa_data))
  		return -EADDRNOTAVAIL;
  
  	err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
  	if (err)
  		return err;
  	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
  	return 0;
  }
  
  static u16 mlxsw_sp_pg_buf_threshold_get(const struct mlxsw_sp *mlxsw_sp,
  					 int mtu)
  {
  	return 2 * mlxsw_sp_bytes_cells(mlxsw_sp, mtu);
  }
  
  #define MLXSW_SP_CELL_FACTOR 2	/* 2 * cell_size / (IPG + cell_size + 1) */
  
  static u16 mlxsw_sp_pfc_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu,
  				  u16 delay)
  {
  	delay = mlxsw_sp_bytes_cells(mlxsw_sp, DIV_ROUND_UP(delay,
  							    BITS_PER_BYTE));
  	return MLXSW_SP_CELL_FACTOR * delay + mlxsw_sp_bytes_cells(mlxsw_sp,
  								   mtu);
  }
  
  /* Maximum delay buffer needed in case of PAUSE frames, in bytes.
   * Assumes 100m cable and maximum MTU.
   */
  #define MLXSW_SP_PAUSE_DELAY 58752
  
  static u16 mlxsw_sp_pg_buf_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu,
  				     u16 delay, bool pfc, bool pause)
  {
  	if (pfc)
  		return mlxsw_sp_pfc_delay_get(mlxsw_sp, mtu, delay);
  	else if (pause)
  		return mlxsw_sp_bytes_cells(mlxsw_sp, MLXSW_SP_PAUSE_DELAY);
  	else
  		return 0;
  }
  
  static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int index, u16 size, u16 thres,
  				 bool lossy)
  {
  	if (lossy)
  		mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, index, size);
  	else
  		mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, index, size,
  						    thres);
  }
  
  int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
  				 u8 *prio_tc, bool pause_en,
  				 struct ieee_pfc *my_pfc)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
  	u16 delay = !!my_pfc ? my_pfc->delay : 0;
  	char pbmc_pl[MLXSW_REG_PBMC_LEN];
  	u32 taken_headroom_cells = 0;
  	u32 max_headroom_cells;
  	int i, j, err;
  
  	max_headroom_cells = mlxsw_sp_sb_max_headroom_cells(mlxsw_sp);
  
  	mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
  	if (err)
  		return err;
  
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		bool configure = false;
  		bool pfc = false;
  		u16 thres_cells;
  		u16 delay_cells;
  		u16 total_cells;
  		bool lossy;
  
  		for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
  			if (prio_tc[j] == i) {
  				pfc = pfc_en & BIT(j);
  				configure = true;
  				break;
  			}
  		}
  
  		if (!configure)
  			continue;
  
  		lossy = !(pfc || pause_en);
  		thres_cells = mlxsw_sp_pg_buf_threshold_get(mlxsw_sp, mtu);
  		delay_cells = mlxsw_sp_pg_buf_delay_get(mlxsw_sp, mtu, delay,
  							pfc, pause_en);
  		total_cells = thres_cells + delay_cells;
  
  		taken_headroom_cells += total_cells;
  		if (taken_headroom_cells > max_headroom_cells)
  			return -ENOBUFS;
  
  		mlxsw_sp_pg_buf_pack(pbmc_pl, i, total_cells,
  				     thres_cells, lossy);
  	}
  
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
  }
  
  static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				      int mtu, bool pause_en)
  {
  	u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
  	bool dcb_en = !!mlxsw_sp_port->dcb.ets;
  	struct ieee_pfc *my_pfc;
  	u8 *prio_tc;
  
  	prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
  	my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
  
  	return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
  					    pause_en, my_pfc);
  }
  
  static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
  	int err;
  
  	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
  	if (err)
  		return err;
  	err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
  	if (err)
  		goto err_span_port_mtu_update;
  	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
  	if (err)
  		goto err_port_mtu_set;
  	dev->mtu = mtu;
  	return 0;
  
  err_port_mtu_set:
  	mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
  err_span_port_mtu_update:
  	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
  	return err;
  }
  
  static int
  mlxsw_sp_port_get_sw_stats64(const struct net_device *dev,
  			     struct rtnl_link_stats64 *stats)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp_port_pcpu_stats *p;
  	u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
  	u32 tx_dropped = 0;
  	unsigned int start;
  	int i;
  
  	for_each_possible_cpu(i) {
  		p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
  		do {
  			start = u64_stats_fetch_begin_irq(&p->syncp);
  			rx_packets	= p->rx_packets;
  			rx_bytes	= p->rx_bytes;
  			tx_packets	= p->tx_packets;
  			tx_bytes	= p->tx_bytes;
  		} while (u64_stats_fetch_retry_irq(&p->syncp, start));
  
  		stats->rx_packets	+= rx_packets;
  		stats->rx_bytes		+= rx_bytes;
  		stats->tx_packets	+= tx_packets;
  		stats->tx_bytes		+= tx_bytes;
  		/* tx_dropped is u32, updated without syncp protection. */
  		tx_dropped	+= p->tx_dropped;
  	}
  	stats->tx_dropped	= tx_dropped;
  	return 0;
  }
  
  static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id)
  {
  	switch (attr_id) {
  	case IFLA_OFFLOAD_XSTATS_CPU_HIT:
  		return true;
  	}
  
  	return false;
  }
  
  static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev,
  					   void *sp)
  {
  	switch (attr_id) {
  	case IFLA_OFFLOAD_XSTATS_CPU_HIT:
  		return mlxsw_sp_port_get_sw_stats64(dev, sp);
  	}
  
  	return -EINVAL;
  }
  
  static int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp,
  				       int prio, char *ppcnt_pl)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  
  	mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
  	return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
  }
  
  static int mlxsw_sp_port_get_hw_stats(struct net_device *dev,
  				      struct rtnl_link_stats64 *stats)
  {
  	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
  	int err;
  
  	err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT,
  					  0, ppcnt_pl);
  	if (err)
  		goto out;
  
  	stats->tx_packets =
  		mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl);
  	stats->rx_packets =
  		mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl);
  	stats->tx_bytes =
  		mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl);
  	stats->rx_bytes =
  		mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl);
  	stats->multicast =
  		mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl);
  
  	stats->rx_crc_errors =
  		mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl);
  	stats->rx_frame_errors =
  		mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl);
  
  	stats->rx_length_errors = (
  		mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) +
  		mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) +
  		mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl));
  
  	stats->rx_errors = (stats->rx_crc_errors +
  		stats->rx_frame_errors + stats->rx_length_errors);
  
  out:
  	return err;
  }
  
  static void
  mlxsw_sp_port_get_hw_xstats(struct net_device *dev,
  			    struct mlxsw_sp_port_xstats *xstats)
  {
  	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
  	int err, i;
  
  	err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_EXT_CNT, 0,
  					  ppcnt_pl);
  	if (!err)
  		xstats->ecn = mlxsw_reg_ppcnt_ecn_marked_get(ppcnt_pl);
  
  	for (i = 0; i < TC_MAX_QUEUE; i++) {
  		err = mlxsw_sp_port_get_stats_raw(dev,
  						  MLXSW_REG_PPCNT_TC_CONG_TC,
  						  i, ppcnt_pl);
  		if (!err)
  			xstats->wred_drop[i] =
  				mlxsw_reg_ppcnt_wred_discard_get(ppcnt_pl);
  
  		err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_TC_CNT,
  						  i, ppcnt_pl);
  		if (err)
  			continue;
  
  		xstats->backlog[i] =
  			mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
  		xstats->tail_drop[i] =
  			mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get(ppcnt_pl);
  	}
  
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_PRIO_CNT,
  						  i, ppcnt_pl);
  		if (err)
  			continue;
  
  		xstats->tx_packets[i] = mlxsw_reg_ppcnt_tx_frames_get(ppcnt_pl);
  		xstats->tx_bytes[i] = mlxsw_reg_ppcnt_tx_octets_get(ppcnt_pl);
  	}
  }
  
  static void update_stats_cache(struct work_struct *work)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port =
  		container_of(work, struct mlxsw_sp_port,
  			     periodic_hw_stats.update_dw.work);
  
  	if (!netif_carrier_ok(mlxsw_sp_port->dev))
  		/* Note: mlxsw_sp_port_down_wipe_counters() clears the cache as
  		 * necessary when port goes down.
  		 */
  		goto out;
  
  	mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev,
  				   &mlxsw_sp_port->periodic_hw_stats.stats);
  	mlxsw_sp_port_get_hw_xstats(mlxsw_sp_port->dev,
  				    &mlxsw_sp_port->periodic_hw_stats.xstats);
  
  out:
  	mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw,
  			       MLXSW_HW_STATS_UPDATE_TIME);
  }
  
  /* Return the stats from a cache that is updated periodically,
   * as this function might get called in an atomic context.
   */
  static void
  mlxsw_sp_port_get_stats64(struct net_device *dev,
  			  struct rtnl_link_stats64 *stats)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	memcpy(stats, &mlxsw_sp_port->periodic_hw_stats.stats, sizeof(*stats));
  }
  
  static int __mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				    u16 vid_begin, u16 vid_end,
  				    bool is_member, bool untagged)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char *spvm_pl;
  	int err;
  
  	spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
  	if (!spvm_pl)
  		return -ENOMEM;
  
  	mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port,	vid_begin,
  			    vid_end, is_member, untagged);
  	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
  	kfree(spvm_pl);
  	return err;
  }
  
  int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
  			   u16 vid_end, bool is_member, bool untagged)
  {
  	u16 vid, vid_e;
  	int err;
  
  	for (vid = vid_begin; vid <= vid_end;
  	     vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
  		vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
  			    vid_end);
  
  		err = __mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
  					       is_member, untagged);
  		if (err)
  			return err;
  	}
  
  	return 0;
  }
  
  static void mlxsw_sp_port_vlan_flush(struct mlxsw_sp_port *mlxsw_sp_port,
  				     bool flush_default)
  {
  	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, *tmp;
  
  	list_for_each_entry_safe(mlxsw_sp_port_vlan, tmp,
  				 &mlxsw_sp_port->vlans_list, list) {
  		if (!flush_default &&
  		    mlxsw_sp_port_vlan->vid == MLXSW_SP_DEFAULT_VID)
  			continue;
  		mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
  	}
  }
  
  static void
  mlxsw_sp_port_vlan_cleanup(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
  {
  	if (mlxsw_sp_port_vlan->bridge_port)
  		mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
  	else if (mlxsw_sp_port_vlan->fid)
  		mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
  }
  
  struct mlxsw_sp_port_vlan *
  mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
  {
  	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
  	bool untagged = vid == MLXSW_SP_DEFAULT_VID;
  	int err;
  
  	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
  	if (mlxsw_sp_port_vlan)
  		return ERR_PTR(-EEXIST);
  
  	err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, untagged);
  	if (err)
  		return ERR_PTR(err);
  
  	mlxsw_sp_port_vlan = kzalloc(sizeof(*mlxsw_sp_port_vlan), GFP_KERNEL);
  	if (!mlxsw_sp_port_vlan) {
  		err = -ENOMEM;
  		goto err_port_vlan_alloc;
  	}
  
  	mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port;
  	mlxsw_sp_port_vlan->vid = vid;
  	list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list);
  
  	return mlxsw_sp_port_vlan;
  
  err_port_vlan_alloc:
  	mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
  	return ERR_PTR(err);
  }
  
  void mlxsw_sp_port_vlan_destroy(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
  	u16 vid = mlxsw_sp_port_vlan->vid;
  
  	mlxsw_sp_port_vlan_cleanup(mlxsw_sp_port_vlan);
  	list_del(&mlxsw_sp_port_vlan->list);
  	kfree(mlxsw_sp_port_vlan);
  	mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
  }
  
  static int mlxsw_sp_port_add_vid(struct net_device *dev,
  				 __be16 __always_unused proto, u16 vid)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	/* VLAN 0 is added to HW filter when device goes up, but it is
  	 * reserved in our case, so simply return.
  	 */
  	if (!vid)
  		return 0;
  
  	return PTR_ERR_OR_ZERO(mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid));
  }
  
  static int mlxsw_sp_port_kill_vid(struct net_device *dev,
  				  __be16 __always_unused proto, u16 vid)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
  
  	/* VLAN 0 is removed from HW filter when device goes down, but
  	 * it is reserved in our case, so simply return.
  	 */
  	if (!vid)
  		return 0;
  
  	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
  	if (!mlxsw_sp_port_vlan)
  		return 0;
  	mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
  
  	return 0;
  }
  
  static struct mlxsw_sp_port_mall_tc_entry *
  mlxsw_sp_port_mall_tc_entry_find(struct mlxsw_sp_port *port,
  				 unsigned long cookie) {
  	struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
  
  	list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list)
  		if (mall_tc_entry->cookie == cookie)
  			return mall_tc_entry;
  
  	return NULL;
  }
  
  static int
  mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
  				      struct mlxsw_sp_port_mall_mirror_tc_entry *mirror,
  				      const struct flow_action_entry *act,
  				      bool ingress)
  {
  	enum mlxsw_sp_span_type span_type;
  
  	if (!act->dev) {
  		netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n");
  		return -EINVAL;
  	}
  
  	mirror->ingress = ingress;
  	span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
  	return mlxsw_sp_span_mirror_add(mlxsw_sp_port, act->dev, span_type,
  					true, &mirror->span_id);
  }
  
  static void
  mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
  				      struct mlxsw_sp_port_mall_mirror_tc_entry *mirror)
  {
  	enum mlxsw_sp_span_type span_type;
  
  	span_type = mirror->ingress ?
  			MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
  	mlxsw_sp_span_mirror_del(mlxsw_sp_port, mirror->span_id,
  				 span_type, true);
  }
  
  static int
  mlxsw_sp_port_add_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port,
  				      struct tc_cls_matchall_offload *cls,
  				      const struct flow_action_entry *act,
  				      bool ingress)
  {
  	int err;
  
  	if (!mlxsw_sp_port->sample)
  		return -EOPNOTSUPP;
  	if (rtnl_dereference(mlxsw_sp_port->sample->psample_group)) {
  		netdev_err(mlxsw_sp_port->dev, "sample already active\n");
  		return -EEXIST;
  	}
  	if (act->sample.rate > MLXSW_REG_MPSC_RATE_MAX) {
  		netdev_err(mlxsw_sp_port->dev, "sample rate not supported\n");
  		return -EOPNOTSUPP;
  	}
  
  	rcu_assign_pointer(mlxsw_sp_port->sample->psample_group,
  			   act->sample.psample_group);
  	mlxsw_sp_port->sample->truncate = act->sample.truncate;
  	mlxsw_sp_port->sample->trunc_size = act->sample.trunc_size;
  	mlxsw_sp_port->sample->rate = act->sample.rate;
  
  	err = mlxsw_sp_port_sample_set(mlxsw_sp_port, true, act->sample.rate);
  	if (err)
  		goto err_port_sample_set;
  	return 0;
  
  err_port_sample_set:
  	RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL);
  	return err;
  }
  
  static void
  mlxsw_sp_port_del_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	if (!mlxsw_sp_port->sample)
  		return;
  
  	mlxsw_sp_port_sample_set(mlxsw_sp_port, false, 1);
  	RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL);
  }
  
  static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
  					  struct tc_cls_matchall_offload *f,
  					  bool ingress)
  {
  	struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
  	__be16 protocol = f->common.protocol;
  	struct flow_action_entry *act;
  	int err;
  
  	if (!flow_offload_has_one_action(&f->rule->action)) {
  		netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
  		return -EOPNOTSUPP;
  	}
  
  	mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
  	if (!mall_tc_entry)
  		return -ENOMEM;
  	mall_tc_entry->cookie = f->cookie;
  
  	act = &f->rule->action.entries[0];
  
  	if (act->id == FLOW_ACTION_MIRRED && protocol == htons(ETH_P_ALL)) {
  		struct mlxsw_sp_port_mall_mirror_tc_entry *mirror;
  
  		mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR;
  		mirror = &mall_tc_entry->mirror;
  		err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port,
  							    mirror, act,
  							    ingress);
  	} else if (act->id == FLOW_ACTION_SAMPLE &&
  		   protocol == htons(ETH_P_ALL)) {
  		mall_tc_entry->type = MLXSW_SP_PORT_MALL_SAMPLE;
  		err = mlxsw_sp_port_add_cls_matchall_sample(mlxsw_sp_port, f,
  							    act, ingress);
  	} else {
  		err = -EOPNOTSUPP;
  	}
  
  	if (err)
  		goto err_add_action;
  
  	list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list);
  	return 0;
  
  err_add_action:
  	kfree(mall_tc_entry);
  	return err;
  }
  
  static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
  					   struct tc_cls_matchall_offload *f)
  {
  	struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
  
  	mall_tc_entry = mlxsw_sp_port_mall_tc_entry_find(mlxsw_sp_port,
  							 f->cookie);
  	if (!mall_tc_entry) {
  		netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
  		return;
  	}
  	list_del(&mall_tc_entry->list);
  
  	switch (mall_tc_entry->type) {
  	case MLXSW_SP_PORT_MALL_MIRROR:
  		mlxsw_sp_port_del_cls_matchall_mirror(mlxsw_sp_port,
  						      &mall_tc_entry->mirror);
  		break;
  	case MLXSW_SP_PORT_MALL_SAMPLE:
  		mlxsw_sp_port_del_cls_matchall_sample(mlxsw_sp_port);
  		break;
  	default:
  		WARN_ON(1);
  	}
  
  	kfree(mall_tc_entry);
  }
  
  static int mlxsw_sp_setup_tc_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
  					  struct tc_cls_matchall_offload *f,
  					  bool ingress)
  {
  	switch (f->command) {
  	case TC_CLSMATCHALL_REPLACE:
  		return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port, f,
  						      ingress);
  	case TC_CLSMATCHALL_DESTROY:
  		mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port, f);
  		return 0;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static int
  mlxsw_sp_setup_tc_cls_flower(struct mlxsw_sp_acl_block *acl_block,
  			     struct flow_cls_offload *f)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_acl_block_mlxsw_sp(acl_block);
  
  	switch (f->command) {
  	case FLOW_CLS_REPLACE:
  		return mlxsw_sp_flower_replace(mlxsw_sp, acl_block, f);
  	case FLOW_CLS_DESTROY:
  		mlxsw_sp_flower_destroy(mlxsw_sp, acl_block, f);
  		return 0;
  	case FLOW_CLS_STATS:
  		return mlxsw_sp_flower_stats(mlxsw_sp, acl_block, f);
  	case FLOW_CLS_TMPLT_CREATE:
  		return mlxsw_sp_flower_tmplt_create(mlxsw_sp, acl_block, f);
  	case FLOW_CLS_TMPLT_DESTROY:
  		mlxsw_sp_flower_tmplt_destroy(mlxsw_sp, acl_block, f);
  		return 0;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static int mlxsw_sp_setup_tc_block_cb_matchall(enum tc_setup_type type,
  					       void *type_data,
  					       void *cb_priv, bool ingress)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = cb_priv;
  
  	switch (type) {
  	case TC_SETUP_CLSMATCHALL:
  		if (!tc_cls_can_offload_and_chain0(mlxsw_sp_port->dev,
  						   type_data))
  			return -EOPNOTSUPP;
  
  		return mlxsw_sp_setup_tc_cls_matchall(mlxsw_sp_port, type_data,
  						      ingress);
  	case TC_SETUP_CLSFLOWER:
  		return 0;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static int mlxsw_sp_setup_tc_block_cb_matchall_ig(enum tc_setup_type type,
  						  void *type_data,
  						  void *cb_priv)
  {
  	return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data,
  						   cb_priv, true);
  }
  
  static int mlxsw_sp_setup_tc_block_cb_matchall_eg(enum tc_setup_type type,
  						  void *type_data,
  						  void *cb_priv)
  {
  	return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data,
  						   cb_priv, false);
  }
  
  static int mlxsw_sp_setup_tc_block_cb_flower(enum tc_setup_type type,
  					     void *type_data, void *cb_priv)
  {
  	struct mlxsw_sp_acl_block *acl_block = cb_priv;
  
  	switch (type) {
  	case TC_SETUP_CLSMATCHALL:
  		return 0;
  	case TC_SETUP_CLSFLOWER:
  		if (mlxsw_sp_acl_block_disabled(acl_block))
  			return -EOPNOTSUPP;
  
  		return mlxsw_sp_setup_tc_cls_flower(acl_block, type_data);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static void mlxsw_sp_tc_block_flower_release(void *cb_priv)
  {
  	struct mlxsw_sp_acl_block *acl_block = cb_priv;
  
  	mlxsw_sp_acl_block_destroy(acl_block);
  }
  
  static LIST_HEAD(mlxsw_sp_block_cb_list);
  
  static int
  mlxsw_sp_setup_tc_block_flower_bind(struct mlxsw_sp_port *mlxsw_sp_port,
  			            struct flow_block_offload *f, bool ingress)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	struct mlxsw_sp_acl_block *acl_block;
  	struct flow_block_cb *block_cb;
  	bool register_block = false;
  	int err;
  
  	block_cb = flow_block_cb_lookup(f->block,
  					mlxsw_sp_setup_tc_block_cb_flower,
  					mlxsw_sp);
  	if (!block_cb) {
  		acl_block = mlxsw_sp_acl_block_create(mlxsw_sp, f->net);
  		if (!acl_block)
  			return -ENOMEM;
  		block_cb = flow_block_cb_alloc(mlxsw_sp_setup_tc_block_cb_flower,
  					       mlxsw_sp, acl_block,
  					       mlxsw_sp_tc_block_flower_release);
  		if (IS_ERR(block_cb)) {
  			mlxsw_sp_acl_block_destroy(acl_block);
  			err = PTR_ERR(block_cb);
  			goto err_cb_register;
  		}
  		register_block = true;
  	} else {
  		acl_block = flow_block_cb_priv(block_cb);
  	}
  	flow_block_cb_incref(block_cb);
  	err = mlxsw_sp_acl_block_bind(mlxsw_sp, acl_block,
  				      mlxsw_sp_port, ingress, f->extack);
  	if (err)
  		goto err_block_bind;
  
  	if (ingress)
  		mlxsw_sp_port->ing_acl_block = acl_block;
  	else
  		mlxsw_sp_port->eg_acl_block = acl_block;
  
  	if (register_block) {
  		flow_block_cb_add(block_cb, f);
  		list_add_tail(&block_cb->driver_list, &mlxsw_sp_block_cb_list);
  	}
  
  	return 0;
  
  err_block_bind:
  	if (!flow_block_cb_decref(block_cb))
  		flow_block_cb_free(block_cb);
  err_cb_register:
  	return err;
  }
  
  static void
  mlxsw_sp_setup_tc_block_flower_unbind(struct mlxsw_sp_port *mlxsw_sp_port,
  				      struct flow_block_offload *f, bool ingress)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	struct mlxsw_sp_acl_block *acl_block;
  	struct flow_block_cb *block_cb;
  	int err;
  
  	block_cb = flow_block_cb_lookup(f->block,
  					mlxsw_sp_setup_tc_block_cb_flower,
  					mlxsw_sp);
  	if (!block_cb)
  		return;
  
  	if (ingress)
  		mlxsw_sp_port->ing_acl_block = NULL;
  	else
  		mlxsw_sp_port->eg_acl_block = NULL;
  
  	acl_block = flow_block_cb_priv(block_cb);
  	err = mlxsw_sp_acl_block_unbind(mlxsw_sp, acl_block,
  					mlxsw_sp_port, ingress);
  	if (!err && !flow_block_cb_decref(block_cb)) {
  		flow_block_cb_remove(block_cb, f);
  		list_del(&block_cb->driver_list);
  	}
  }
  
  static int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port,
  				   struct flow_block_offload *f)
  {
  	struct flow_block_cb *block_cb;
  	flow_setup_cb_t *cb;
  	bool ingress;
  	int err;
  
  	if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
  		cb = mlxsw_sp_setup_tc_block_cb_matchall_ig;
  		ingress = true;
  	} else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
  		cb = mlxsw_sp_setup_tc_block_cb_matchall_eg;
  		ingress = false;
  	} else {
  		return -EOPNOTSUPP;
  	}
  
  	f->driver_block_list = &mlxsw_sp_block_cb_list;
  
  	switch (f->command) {
  	case FLOW_BLOCK_BIND:
  		if (flow_block_cb_is_busy(cb, mlxsw_sp_port,
  					  &mlxsw_sp_block_cb_list))
  			return -EBUSY;
  
  		block_cb = flow_block_cb_alloc(cb, mlxsw_sp_port,
  					       mlxsw_sp_port, NULL);
  		if (IS_ERR(block_cb))
  			return PTR_ERR(block_cb);
  		err = mlxsw_sp_setup_tc_block_flower_bind(mlxsw_sp_port, f,
  							  ingress);
  		if (err) {
  			flow_block_cb_free(block_cb);
  			return err;
  		}
  		flow_block_cb_add(block_cb, f);
  		list_add_tail(&block_cb->driver_list, &mlxsw_sp_block_cb_list);
  		return 0;
  	case FLOW_BLOCK_UNBIND:
  		mlxsw_sp_setup_tc_block_flower_unbind(mlxsw_sp_port,
  						      f, ingress);
  		block_cb = flow_block_cb_lookup(f->block, cb, mlxsw_sp_port);
  		if (!block_cb)
  			return -ENOENT;
  
  		flow_block_cb_remove(block_cb, f);
  		list_del(&block_cb->driver_list);
  		return 0;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static int mlxsw_sp_setup_tc(struct net_device *dev, enum tc_setup_type type,
  			     void *type_data)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	switch (type) {
  	case TC_SETUP_BLOCK:
  		return mlxsw_sp_setup_tc_block(mlxsw_sp_port, type_data);
  	case TC_SETUP_QDISC_RED:
  		return mlxsw_sp_setup_tc_red(mlxsw_sp_port, type_data);
  	case TC_SETUP_QDISC_PRIO:
  		return mlxsw_sp_setup_tc_prio(mlxsw_sp_port, type_data);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  
  static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	if (!enable) {
  		if (mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->ing_acl_block) ||
  		    mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->eg_acl_block) ||
  		    !list_empty(&mlxsw_sp_port->mall_tc_list)) {
  			netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n");
  			return -EINVAL;
  		}
  		mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->ing_acl_block);
  		mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->eg_acl_block);
  	} else {
  		mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->ing_acl_block);
  		mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->eg_acl_block);
  	}
  	return 0;
  }
  
  static int mlxsw_sp_feature_loopback(struct net_device *dev, bool enable)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	char pplr_pl[MLXSW_REG_PPLR_LEN];
  	int err;
  
  	if (netif_running(dev))
  		mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
  
  	mlxsw_reg_pplr_pack(pplr_pl, mlxsw_sp_port->local_port, enable);
  	err = mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pplr),
  			      pplr_pl);
  
  	if (netif_running(dev))
  		mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
  
  	return err;
  }
  
  typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable);
  
  static int mlxsw_sp_handle_feature(struct net_device *dev,
  				   netdev_features_t wanted_features,
  				   netdev_features_t feature,
  				   mlxsw_sp_feature_handler feature_handler)
  {
  	netdev_features_t changes = wanted_features ^ dev->features;
  	bool enable = !!(wanted_features & feature);
  	int err;
  
  	if (!(changes & feature))
  		return 0;
  
  	err = feature_handler(dev, enable);
  	if (err) {
  		netdev_err(dev, "%s feature %pNF failed, err %d\n",
  			   enable ? "Enable" : "Disable", &feature, err);
  		return err;
  	}
  
  	if (enable)
  		dev->features |= feature;
  	else
  		dev->features &= ~feature;
  
  	return 0;
  }
  static int mlxsw_sp_set_features(struct net_device *dev,
  				 netdev_features_t features)
  {
  	netdev_features_t oper_features = dev->features;
  	int err = 0;
  
  	err |= mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC,
  				       mlxsw_sp_feature_hw_tc);
  	err |= mlxsw_sp_handle_feature(dev, features, NETIF_F_LOOPBACK,
  				       mlxsw_sp_feature_loopback);
  
  	if (err) {
  		dev->features = oper_features;
  		return -EINVAL;
  	}
  
  	return 0;
  }
  
  static struct devlink_port *
  mlxsw_sp_port_get_devlink_port(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  
  	return mlxsw_core_port_devlink_port_get(mlxsw_sp->core,
  						mlxsw_sp_port->local_port);
  }
  
  static int mlxsw_sp_port_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				      struct ifreq *ifr)
  {
  	struct hwtstamp_config config;
  	int err;
  
  	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
  		return -EFAULT;
  
  	err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port,
  							     &config);
  	if (err)
  		return err;
  
  	if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
  		return -EFAULT;
  
  	return 0;
  }
  
  static int mlxsw_sp_port_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
  				      struct ifreq *ifr)
  {
  	struct hwtstamp_config config;
  	int err;
  
  	err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_get(mlxsw_sp_port,
  							     &config);
  	if (err)
  		return err;
  
  	if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
  		return -EFAULT;
  
  	return 0;
  }
  
  static inline void mlxsw_sp_port_ptp_clear(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	struct hwtstamp_config config = {0};
  
  	mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port, &config);
  }
  
  static int
  mlxsw_sp_port_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	switch (cmd) {
  	case SIOCSHWTSTAMP:
  		return mlxsw_sp_port_hwtstamp_set(mlxsw_sp_port, ifr);
  	case SIOCGHWTSTAMP:
  		return mlxsw_sp_port_hwtstamp_get(mlxsw_sp_port, ifr);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
  	.ndo_open		= mlxsw_sp_port_open,
  	.ndo_stop		= mlxsw_sp_port_stop,
  	.ndo_start_xmit		= mlxsw_sp_port_xmit,
  	.ndo_setup_tc           = mlxsw_sp_setup_tc,
  	.ndo_set_rx_mode	= mlxsw_sp_set_rx_mode,
  	.ndo_set_mac_address	= mlxsw_sp_port_set_mac_address,
  	.ndo_change_mtu		= mlxsw_sp_port_change_mtu,
  	.ndo_get_stats64	= mlxsw_sp_port_get_stats64,
  	.ndo_has_offload_stats	= mlxsw_sp_port_has_offload_stats,
  	.ndo_get_offload_stats	= mlxsw_sp_port_get_offload_stats,
  	.ndo_vlan_rx_add_vid	= mlxsw_sp_port_add_vid,
  	.ndo_vlan_rx_kill_vid	= mlxsw_sp_port_kill_vid,
  	.ndo_set_features	= mlxsw_sp_set_features,
  	.ndo_get_devlink_port	= mlxsw_sp_port_get_devlink_port,
  	.ndo_do_ioctl		= mlxsw_sp_port_ioctl,
  };
  
  static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
  				      struct ethtool_drvinfo *drvinfo)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  
  	strlcpy(drvinfo->driver, mlxsw_sp->bus_info->device_kind,
  		sizeof(drvinfo->driver));
  	strlcpy(drvinfo->version, mlxsw_sp_driver_version,
  		sizeof(drvinfo->version));
  	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  		 "%d.%d.%d",
  		 mlxsw_sp->bus_info->fw_rev.major,
  		 mlxsw_sp->bus_info->fw_rev.minor,
  		 mlxsw_sp->bus_info->fw_rev.subminor);
  	strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
  		sizeof(drvinfo->bus_info));
  }
  
  static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
  					 struct ethtool_pauseparam *pause)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	pause->rx_pause = mlxsw_sp_port->link.rx_pause;
  	pause->tx_pause = mlxsw_sp_port->link.tx_pause;
  }
  
  static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				   struct ethtool_pauseparam *pause)
  {
  	char pfcc_pl[MLXSW_REG_PFCC_LEN];
  
  	mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
  	mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
  	mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);
  
  	return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
  			       pfcc_pl);
  }
  
  static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
  					struct ethtool_pauseparam *pause)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	bool pause_en = pause->tx_pause || pause->rx_pause;
  	int err;
  
  	if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
  		netdev_err(dev, "PFC already enabled on port\n");
  		return -EINVAL;
  	}
  
  	if (pause->autoneg) {
  		netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
  		return -EINVAL;
  	}
  
  	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
  	if (err) {
  		netdev_err(dev, "Failed to configure port's headroom\n");
  		return err;
  	}
  
  	err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
  	if (err) {
  		netdev_err(dev, "Failed to set PAUSE parameters\n");
  		goto err_port_pause_configure;
  	}
  
  	mlxsw_sp_port->link.rx_pause = pause->rx_pause;
  	mlxsw_sp_port->link.tx_pause = pause->tx_pause;
  
  	return 0;
  
  err_port_pause_configure:
  	pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
  	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
  	return err;
  }
  
  struct mlxsw_sp_port_hw_stats {
  	char str[ETH_GSTRING_LEN];
  	u64 (*getter)(const char *payload);
  	bool cells_bytes;
  };
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
  	{
  		.str = "a_frames_transmitted_ok",
  		.getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
  	},
  	{
  		.str = "a_frames_received_ok",
  		.getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
  	},
  	{
  		.str = "a_frame_check_sequence_errors",
  		.getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
  	},
  	{
  		.str = "a_alignment_errors",
  		.getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
  	},
  	{
  		.str = "a_octets_transmitted_ok",
  		.getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
  	},
  	{
  		.str = "a_octets_received_ok",
  		.getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
  	},
  	{
  		.str = "a_multicast_frames_xmitted_ok",
  		.getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
  	},
  	{
  		.str = "a_broadcast_frames_xmitted_ok",
  		.getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
  	},
  	{
  		.str = "a_multicast_frames_received_ok",
  		.getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
  	},
  	{
  		.str = "a_broadcast_frames_received_ok",
  		.getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
  	},
  	{
  		.str = "a_in_range_length_errors",
  		.getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
  	},
  	{
  		.str = "a_out_of_range_length_field",
  		.getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
  	},
  	{
  		.str = "a_frame_too_long_errors",
  		.getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
  	},
  	{
  		.str = "a_symbol_error_during_carrier",
  		.getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
  	},
  	{
  		.str = "a_mac_control_frames_transmitted",
  		.getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
  	},
  	{
  		.str = "a_mac_control_frames_received",
  		.getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
  	},
  	{
  		.str = "a_unsupported_opcodes_received",
  		.getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
  	},
  	{
  		.str = "a_pause_mac_ctrl_frames_received",
  		.getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
  	},
  	{
  		.str = "a_pause_mac_ctrl_frames_xmitted",
  		.getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_2863_stats[] = {
  	{
  		.str = "if_in_discards",
  		.getter = mlxsw_reg_ppcnt_if_in_discards_get,
  	},
  	{
  		.str = "if_out_discards",
  		.getter = mlxsw_reg_ppcnt_if_out_discards_get,
  	},
  	{
  		.str = "if_out_errors",
  		.getter = mlxsw_reg_ppcnt_if_out_errors_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN \
  	ARRAY_SIZE(mlxsw_sp_port_hw_rfc_2863_stats)
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_2819_stats[] = {
  	{
  		.str = "ether_stats_undersize_pkts",
  		.getter = mlxsw_reg_ppcnt_ether_stats_undersize_pkts_get,
  	},
  	{
  		.str = "ether_stats_oversize_pkts",
  		.getter = mlxsw_reg_ppcnt_ether_stats_oversize_pkts_get,
  	},
  	{
  		.str = "ether_stats_fragments",
  		.getter = mlxsw_reg_ppcnt_ether_stats_fragments_get,
  	},
  	{
  		.str = "ether_pkts64octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts64octets_get,
  	},
  	{
  		.str = "ether_pkts65to127octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts65to127octets_get,
  	},
  	{
  		.str = "ether_pkts128to255octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts128to255octets_get,
  	},
  	{
  		.str = "ether_pkts256to511octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts256to511octets_get,
  	},
  	{
  		.str = "ether_pkts512to1023octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts512to1023octets_get,
  	},
  	{
  		.str = "ether_pkts1024to1518octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts1024to1518octets_get,
  	},
  	{
  		.str = "ether_pkts1519to2047octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts1519to2047octets_get,
  	},
  	{
  		.str = "ether_pkts2048to4095octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts2048to4095octets_get,
  	},
  	{
  		.str = "ether_pkts4096to8191octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts4096to8191octets_get,
  	},
  	{
  		.str = "ether_pkts8192to10239octets",
  		.getter = mlxsw_reg_ppcnt_ether_stats_pkts8192to10239octets_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN \
  	ARRAY_SIZE(mlxsw_sp_port_hw_rfc_2819_stats)
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_3635_stats[] = {
  	{
  		.str = "dot3stats_fcs_errors",
  		.getter = mlxsw_reg_ppcnt_dot3stats_fcs_errors_get,
  	},
  	{
  		.str = "dot3stats_symbol_errors",
  		.getter = mlxsw_reg_ppcnt_dot3stats_symbol_errors_get,
  	},
  	{
  		.str = "dot3control_in_unknown_opcodes",
  		.getter = mlxsw_reg_ppcnt_dot3control_in_unknown_opcodes_get,
  	},
  	{
  		.str = "dot3in_pause_frames",
  		.getter = mlxsw_reg_ppcnt_dot3in_pause_frames_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN \
  	ARRAY_SIZE(mlxsw_sp_port_hw_rfc_3635_stats)
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_discard_stats[] = {
  	{
  		.str = "discard_ingress_general",
  		.getter = mlxsw_reg_ppcnt_ingress_general_get,
  	},
  	{
  		.str = "discard_ingress_policy_engine",
  		.getter = mlxsw_reg_ppcnt_ingress_policy_engine_get,
  	},
  	{
  		.str = "discard_ingress_vlan_membership",
  		.getter = mlxsw_reg_ppcnt_ingress_vlan_membership_get,
  	},
  	{
  		.str = "discard_ingress_tag_frame_type",
  		.getter = mlxsw_reg_ppcnt_ingress_tag_frame_type_get,
  	},
  	{
  		.str = "discard_egress_vlan_membership",
  		.getter = mlxsw_reg_ppcnt_egress_vlan_membership_get,
  	},
  	{
  		.str = "discard_loopback_filter",
  		.getter = mlxsw_reg_ppcnt_loopback_filter_get,
  	},
  	{
  		.str = "discard_egress_general",
  		.getter = mlxsw_reg_ppcnt_egress_general_get,
  	},
  	{
  		.str = "discard_egress_hoq",
  		.getter = mlxsw_reg_ppcnt_egress_hoq_get,
  	},
  	{
  		.str = "discard_egress_policy_engine",
  		.getter = mlxsw_reg_ppcnt_egress_policy_engine_get,
  	},
  	{
  		.str = "discard_ingress_tx_link_down",
  		.getter = mlxsw_reg_ppcnt_ingress_tx_link_down_get,
  	},
  	{
  		.str = "discard_egress_stp_filter",
  		.getter = mlxsw_reg_ppcnt_egress_stp_filter_get,
  	},
  	{
  		.str = "discard_egress_sll",
  		.getter = mlxsw_reg_ppcnt_egress_sll_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_DISCARD_STATS_LEN \
  	ARRAY_SIZE(mlxsw_sp_port_hw_discard_stats)
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
  	{
  		.str = "rx_octets_prio",
  		.getter = mlxsw_reg_ppcnt_rx_octets_get,
  	},
  	{
  		.str = "rx_frames_prio",
  		.getter = mlxsw_reg_ppcnt_rx_frames_get,
  	},
  	{
  		.str = "tx_octets_prio",
  		.getter = mlxsw_reg_ppcnt_tx_octets_get,
  	},
  	{
  		.str = "tx_frames_prio",
  		.getter = mlxsw_reg_ppcnt_tx_frames_get,
  	},
  	{
  		.str = "rx_pause_prio",
  		.getter = mlxsw_reg_ppcnt_rx_pause_get,
  	},
  	{
  		.str = "rx_pause_duration_prio",
  		.getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
  	},
  	{
  		.str = "tx_pause_prio",
  		.getter = mlxsw_reg_ppcnt_tx_pause_get,
  	},
  	{
  		.str = "tx_pause_duration_prio",
  		.getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)
  
  static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
  	{
  		.str = "tc_transmit_queue_tc",
  		.getter = mlxsw_reg_ppcnt_tc_transmit_queue_get,
  		.cells_bytes = true,
  	},
  	{
  		.str = "tc_no_buffer_discard_uc_tc",
  		.getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
  	},
  };
  
  #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)
  
  #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
  					 MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN + \
  					 MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN + \
  					 MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN + \
  					 MLXSW_SP_PORT_HW_DISCARD_STATS_LEN + \
  					 (MLXSW_SP_PORT_HW_PRIO_STATS_LEN * \
  					  IEEE_8021QAZ_MAX_TCS) + \
  					 (MLXSW_SP_PORT_HW_TC_STATS_LEN * \
  					  TC_MAX_QUEUE))
  
  static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
  {
  	int i;
  
  	for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
  		snprintf(*p, ETH_GSTRING_LEN, "%.29s_%.1d",
  			 mlxsw_sp_port_hw_prio_stats[i].str, prio);
  		*p += ETH_GSTRING_LEN;
  	}
  }
  
  static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
  {
  	int i;
  
  	for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
  		snprintf(*p, ETH_GSTRING_LEN, "%.29s_%.1d",
  			 mlxsw_sp_port_hw_tc_stats[i].str, tc);
  		*p += ETH_GSTRING_LEN;
  	}
  }
  
  static void mlxsw_sp_port_get_strings(struct net_device *dev,
  				      u32 stringset, u8 *data)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	u8 *p = data;
  	int i;
  
  	switch (stringset) {
  	case ETH_SS_STATS:
  		for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
  			memcpy(p, mlxsw_sp_port_hw_stats[i].str,
  			       ETH_GSTRING_LEN);
  			p += ETH_GSTRING_LEN;
  		}
  
  		for (i = 0; i < MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN; i++) {
  			memcpy(p, mlxsw_sp_port_hw_rfc_2863_stats[i].str,
  			       ETH_GSTRING_LEN);
  			p += ETH_GSTRING_LEN;
  		}
  
  		for (i = 0; i < MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN; i++) {
  			memcpy(p, mlxsw_sp_port_hw_rfc_2819_stats[i].str,
  			       ETH_GSTRING_LEN);
  			p += ETH_GSTRING_LEN;
  		}
  
  		for (i = 0; i < MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN; i++) {
  			memcpy(p, mlxsw_sp_port_hw_rfc_3635_stats[i].str,
  			       ETH_GSTRING_LEN);
  			p += ETH_GSTRING_LEN;
  		}
  
  		for (i = 0; i < MLXSW_SP_PORT_HW_DISCARD_STATS_LEN; i++) {
  			memcpy(p, mlxsw_sp_port_hw_discard_stats[i].str,
  			       ETH_GSTRING_LEN);
  			p += ETH_GSTRING_LEN;
  		}
  
  		for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
  			mlxsw_sp_port_get_prio_strings(&p, i);
  
  		for (i = 0; i < TC_MAX_QUEUE; i++)
  			mlxsw_sp_port_get_tc_strings(&p, i);
  
  		mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats_strings(&p);
  		break;
  	}
  }
  
  static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
  				     enum ethtool_phys_id_state state)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char mlcr_pl[MLXSW_REG_MLCR_LEN];
  	bool active;
  
  	switch (state) {
  	case ETHTOOL_ID_ACTIVE:
  		active = true;
  		break;
  	case ETHTOOL_ID_INACTIVE:
  		active = false;
  		break;
  	default:
  		return -EOPNOTSUPP;
  	}
  
  	mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
  }
  
  static int
  mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
  			       int *p_len, enum mlxsw_reg_ppcnt_grp grp)
  {
  	switch (grp) {
  	case MLXSW_REG_PPCNT_IEEE_8023_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_stats;
  		*p_len = MLXSW_SP_PORT_HW_STATS_LEN;
  		break;
  	case MLXSW_REG_PPCNT_RFC_2863_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_rfc_2863_stats;
  		*p_len = MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN;
  		break;
  	case MLXSW_REG_PPCNT_RFC_2819_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_rfc_2819_stats;
  		*p_len = MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN;
  		break;
  	case MLXSW_REG_PPCNT_RFC_3635_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_rfc_3635_stats;
  		*p_len = MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN;
  		break;
  	case MLXSW_REG_PPCNT_DISCARD_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_discard_stats;
  		*p_len = MLXSW_SP_PORT_HW_DISCARD_STATS_LEN;
  		break;
  	case MLXSW_REG_PPCNT_PRIO_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_prio_stats;
  		*p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
  		break;
  	case MLXSW_REG_PPCNT_TC_CNT:
  		*p_hw_stats = mlxsw_sp_port_hw_tc_stats;
  		*p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
  		break;
  	default:
  		WARN_ON(1);
  		return -EOPNOTSUPP;
  	}
  	return 0;
  }
  
  static void __mlxsw_sp_port_get_stats(struct net_device *dev,
  				      enum mlxsw_reg_ppcnt_grp grp, int prio,
  				      u64 *data, int data_index)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	struct mlxsw_sp_port_hw_stats *hw_stats;
  	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
  	int i, len;
  	int err;
  
  	err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
  	if (err)
  		return;
  	mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl);
  	for (i = 0; i < len; i++) {
  		data[data_index + i] = hw_stats[i].getter(ppcnt_pl);
  		if (!hw_stats[i].cells_bytes)
  			continue;
  		data[data_index + i] = mlxsw_sp_cells_bytes(mlxsw_sp,
  							    data[data_index + i]);
  	}
  }
  
  static void mlxsw_sp_port_get_stats(struct net_device *dev,
  				    struct ethtool_stats *stats, u64 *data)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	int i, data_index = 0;
  
  	/* IEEE 802.3 Counters */
  	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
  				  data, data_index);
  	data_index = MLXSW_SP_PORT_HW_STATS_LEN;
  
  	/* RFC 2863 Counters */
  	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_2863_CNT, 0,
  				  data, data_index);
  	data_index += MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN;
  
  	/* RFC 2819 Counters */
  	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_2819_CNT, 0,
  				  data, data_index);
  	data_index += MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN;
  
  	/* RFC 3635 Counters */
  	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_3635_CNT, 0,
  				  data, data_index);
  	data_index += MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN;
  
  	/* Discard Counters */
  	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_DISCARD_CNT, 0,
  				  data, data_index);
  	data_index += MLXSW_SP_PORT_HW_DISCARD_STATS_LEN;
  
  	/* Per-Priority Counters */
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
  					  data, data_index);
  		data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
  	}
  
  	/* Per-TC Counters */
  	for (i = 0; i < TC_MAX_QUEUE; i++) {
  		__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
  					  data, data_index);
  		data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
  	}
  
  	/* PTP counters */
  	mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats(mlxsw_sp_port,
  						    data, data_index);
  	data_index += mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats_count();
  }
  
  static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  
  	switch (sset) {
  	case ETH_SS_STATS:
  		return MLXSW_SP_PORT_ETHTOOL_STATS_LEN +
  		       mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats_count();
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  struct mlxsw_sp1_port_link_mode {
  	enum ethtool_link_mode_bit_indices mask_ethtool;
  	u32 mask;
  	u32 speed;
  };
  
  static const struct mlxsw_sp1_port_link_mode mlxsw_sp1_port_link_mode[] = {
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_100baseT_Full_BIT,
  		.speed		= SPEED_100,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_SGMII |
  				  MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
  		.speed		= SPEED_1000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
  		.speed		= SPEED_10000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
  				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
  		.speed		= SPEED_10000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
  				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
  				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
  				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
  		.speed		= SPEED_10000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT,
  		.speed		= SPEED_20000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
  		.speed		= SPEED_40000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
  		.speed		= SPEED_40000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
  		.speed		= SPEED_40000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
  		.speed		= SPEED_40000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
  		.speed		= SPEED_25000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
  		.speed		= SPEED_25000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
  		.speed		= SPEED_25000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
  		.speed		= SPEED_50000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
  		.speed		= SPEED_50000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
  		.speed		= SPEED_50000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
  		.speed		= SPEED_100000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
  		.speed		= SPEED_100000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
  		.speed		= SPEED_100000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
  		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
  		.speed		= SPEED_100000,
  	},
  };
  
  #define MLXSW_SP1_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp1_port_link_mode)
  
  static void
  mlxsw_sp1_from_ptys_supported_port(struct mlxsw_sp *mlxsw_sp,
  				   u32 ptys_eth_proto,
  				   struct ethtool_link_ksettings *cmd)
  {
  	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
  			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
  			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
  			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
  			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
  			      MLXSW_REG_PTYS_ETH_SPEED_SGMII))
  		ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
  
  	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
  			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
  			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
  			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
  			      MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
  		ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane);
  }
  
  static void
  mlxsw_sp1_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto,
  			 u8 width, unsigned long *mode)
  {
  	int i;
  
  	for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
  		if (ptys_eth_proto & mlxsw_sp1_port_link_mode[i].mask)
  			__set_bit(mlxsw_sp1_port_link_mode[i].mask_ethtool,
  				  mode);
  	}
  }
  
  static u32
  mlxsw_sp1_from_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto)
  {
  	int i;
  
  	for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
  		if (ptys_eth_proto & mlxsw_sp1_port_link_mode[i].mask)
  			return mlxsw_sp1_port_link_mode[i].speed;
  	}
  
  	return SPEED_UNKNOWN;
  }
  
  static void
  mlxsw_sp1_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
  				 u32 ptys_eth_proto,
  				 struct ethtool_link_ksettings *cmd)
  {
  	cmd->base.speed = SPEED_UNKNOWN;
  	cmd->base.duplex = DUPLEX_UNKNOWN;
  
  	if (!carrier_ok)
  		return;
  
  	cmd->base.speed = mlxsw_sp1_from_ptys_speed(mlxsw_sp, ptys_eth_proto);
  	if (cmd->base.speed != SPEED_UNKNOWN)
  		cmd->base.duplex = DUPLEX_FULL;
  }
  
  static u32
  mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width,
  			      const struct ethtool_link_ksettings *cmd)
  {
  	u32 ptys_proto = 0;
  	int i;
  
  	for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
  		if (test_bit(mlxsw_sp1_port_link_mode[i].mask_ethtool,
  			     cmd->link_modes.advertising))
  			ptys_proto |= mlxsw_sp1_port_link_mode[i].mask;
  	}
  	return ptys_proto;
  }
  
  static u32 mlxsw_sp1_to_ptys_speed(struct mlxsw_sp *mlxsw_sp, u8 width,
  				   u32 speed)
  {
  	u32 ptys_proto = 0;
  	int i;
  
  	for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
  		if (speed == mlxsw_sp1_port_link_mode[i].speed)
  			ptys_proto |= mlxsw_sp1_port_link_mode[i].mask;
  	}
  	return ptys_proto;
  }
  
  static u32
  mlxsw_sp1_to_ptys_upper_speed(struct mlxsw_sp *mlxsw_sp, u32 upper_speed)
  {
  	u32 ptys_proto = 0;
  	int i;
  
  	for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
  		if (mlxsw_sp1_port_link_mode[i].speed <= upper_speed)
  			ptys_proto |= mlxsw_sp1_port_link_mode[i].mask;
  	}
  	return ptys_proto;
  }
  
  static int
  mlxsw_sp1_port_speed_base(struct mlxsw_sp *mlxsw_sp, u8 local_port,
  			  u32 *base_speed)
  {
  	*base_speed = MLXSW_SP_PORT_BASE_SPEED_25G;
  	return 0;
  }
  
  static void
  mlxsw_sp1_reg_ptys_eth_pack(struct mlxsw_sp *mlxsw_sp, char *payload,
  			    u8 local_port, u32 proto_admin, bool autoneg)
  {
  	mlxsw_reg_ptys_eth_pack(payload, local_port, proto_admin, autoneg);
  }
  
  static void
  mlxsw_sp1_reg_ptys_eth_unpack(struct mlxsw_sp *mlxsw_sp, char *payload,
  			      u32 *p_eth_proto_cap, u32 *p_eth_proto_admin,
  			      u32 *p_eth_proto_oper)
  {
  	mlxsw_reg_ptys_eth_unpack(payload, p_eth_proto_cap, p_eth_proto_admin,
  				  p_eth_proto_oper);
  }
  
  static const struct mlxsw_sp_port_type_speed_ops
  mlxsw_sp1_port_type_speed_ops = {
  	.from_ptys_supported_port	= mlxsw_sp1_from_ptys_supported_port,
  	.from_ptys_link			= mlxsw_sp1_from_ptys_link,
  	.from_ptys_speed		= mlxsw_sp1_from_ptys_speed,
  	.from_ptys_speed_duplex		= mlxsw_sp1_from_ptys_speed_duplex,
  	.to_ptys_advert_link		= mlxsw_sp1_to_ptys_advert_link,
  	.to_ptys_speed			= mlxsw_sp1_to_ptys_speed,
  	.to_ptys_upper_speed		= mlxsw_sp1_to_ptys_upper_speed,
  	.port_speed_base		= mlxsw_sp1_port_speed_base,
  	.reg_ptys_eth_pack		= mlxsw_sp1_reg_ptys_eth_pack,
  	.reg_ptys_eth_unpack		= mlxsw_sp1_reg_ptys_eth_unpack,
  };
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_sgmii_100m[] = {
  	ETHTOOL_LINK_MODE_100baseT_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_SGMII_100M_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_sgmii_100m)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_1000base_x_sgmii[] = {
  	ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
  	ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_1000BASE_X_SGMII_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_1000base_x_sgmii)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_2_5gbase_x_2_5gmii[] = {
  	ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_2_5GBASE_X_2_5GMII_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_2_5gbase_x_2_5gmii)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_5gbase_r[] = {
  	ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_5GBASE_R_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_5gbase_r)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_xfi_xaui_1_10g[] = {
  	ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
  	ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
  	ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
  	ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,
  	ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
  	ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
  	ETHTOOL_LINK_MODE_10000baseER_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_XFI_XAUI_1_10G_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_xfi_xaui_1_10g)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_xlaui_4_xlppi_4_40g[] = {
  	ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
  	ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
  	ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
  	ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_XLAUI_4_XLPPI_4_40G_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_xlaui_4_xlppi_4_40g)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_25gaui_1_25gbase_cr_kr[] = {
  	ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
  	ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
  	ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_25GAUI_1_25GBASE_CR_KR_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_25gaui_1_25gbase_cr_kr)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_50gaui_2_laui_2_50gbase_cr2_kr2[] = {
  	ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
  	ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
  	ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_50GAUI_2_LAUI_2_50GBASE_CR2_KR2_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_50gaui_2_laui_2_50gbase_cr2_kr2)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_50gaui_1_laui_1_50gbase_cr_kr[] = {
  	ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
  	ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
  	ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
  	ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
  	ETHTOOL_LINK_MODE_50000baseDR_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_50GAUI_1_LAUI_1_50GBASE_CR_KR_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_50gaui_1_laui_1_50gbase_cr_kr)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_caui_4_100gbase_cr4_kr4[] = {
  	ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_CAUI_4_100GBASE_CR4_KR4_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_caui_4_100gbase_cr4_kr4)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2[] = {
  	ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT,
  	ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_100GAUI_2_100GBASE_CR2_KR2_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2)
  
  static const enum ethtool_link_mode_bit_indices
  mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4[] = {
  	ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT,
  	ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT,
  	ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT,
  	ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT,
  	ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT,
  };
  
  #define MLXSW_SP2_MASK_ETHTOOL_200GAUI_4_200GBASE_CR4_KR4_LEN \
  	ARRAY_SIZE(mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4)
  
  #define MLXSW_SP_PORT_MASK_WIDTH_1X	BIT(0)
  #define MLXSW_SP_PORT_MASK_WIDTH_2X	BIT(1)
  #define MLXSW_SP_PORT_MASK_WIDTH_4X	BIT(2)
  
  static u8 mlxsw_sp_port_mask_width_get(u8 width)
  {
  	switch (width) {
  	case 1:
  		return MLXSW_SP_PORT_MASK_WIDTH_1X;
  	case 2:
  		return MLXSW_SP_PORT_MASK_WIDTH_2X;
  	case 4:
  		return MLXSW_SP_PORT_MASK_WIDTH_4X;
  	default:
  		WARN_ON_ONCE(1);
  		return 0;
  	}
  }
  
  struct mlxsw_sp2_port_link_mode {
  	const enum ethtool_link_mode_bit_indices *mask_ethtool;
  	int m_ethtool_len;
  	u32 mask;
  	u32 speed;
  	u8 mask_width;
  };
  
  static const struct mlxsw_sp2_port_link_mode mlxsw_sp2_port_link_mode[] = {
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_SGMII_100M,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_sgmii_100m,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_SGMII_100M_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X |
  				  MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_100,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_1000BASE_X_SGMII,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_1000base_x_sgmii,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_1000BASE_X_SGMII_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X |
  				  MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_1000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_2_5GBASE_X_2_5GMII,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_2_5gbase_x_2_5gmii,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_2_5GBASE_X_2_5GMII_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X |
  				  MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_2500,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_5GBASE_R,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_5gbase_r,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_5GBASE_R_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X |
  				  MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_5000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_XFI_XAUI_1_10G,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_xfi_xaui_1_10g,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_XFI_XAUI_1_10G_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X |
  				  MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_10000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_XLAUI_4_XLPPI_4_40G,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_xlaui_4_xlppi_4_40g,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_XLAUI_4_XLPPI_4_40G_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_40000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_25GAUI_1_25GBASE_CR_KR,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_25gaui_1_25gbase_cr_kr,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_25GAUI_1_25GBASE_CR_KR_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X |
  				  MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_25000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_2_LAUI_2_50GBASE_CR2_KR2,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_50gaui_2_laui_2_50gbase_cr2_kr2,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_50GAUI_2_LAUI_2_50GBASE_CR2_KR2_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_2X |
  				  MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_50000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_1_LAUI_1_50GBASE_CR_KR,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_50gaui_1_laui_1_50gbase_cr_kr,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_50GAUI_1_LAUI_1_50GBASE_CR_KR_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_1X,
  		.speed		= SPEED_50000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_CAUI_4_100GBASE_CR4_KR4,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_caui_4_100gbase_cr4_kr4,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_CAUI_4_100GBASE_CR4_KR4_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_100000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_100GAUI_2_100GBASE_CR2_KR2,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_100GAUI_2_100GBASE_CR2_KR2_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_2X,
  		.speed		= SPEED_100000,
  	},
  	{
  		.mask		= MLXSW_REG_PTYS_EXT_ETH_SPEED_200GAUI_4_200GBASE_CR4_KR4,
  		.mask_ethtool	= mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4,
  		.m_ethtool_len	= MLXSW_SP2_MASK_ETHTOOL_200GAUI_4_200GBASE_CR4_KR4_LEN,
  		.mask_width	= MLXSW_SP_PORT_MASK_WIDTH_4X,
  		.speed		= SPEED_200000,
  	},
  };
  
  #define MLXSW_SP2_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp2_port_link_mode)
  
  static void
  mlxsw_sp2_from_ptys_supported_port(struct mlxsw_sp *mlxsw_sp,
  				   u32 ptys_eth_proto,
  				   struct ethtool_link_ksettings *cmd)
  {
  	ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
  	ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane);
  }
  
  static void
  mlxsw_sp2_set_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode,
  			  unsigned long *mode)
  {
  	int i;
  
  	for (i = 0; i < link_mode->m_ethtool_len; i++)
  		__set_bit(link_mode->mask_ethtool[i], mode);
  }
  
  static void
  mlxsw_sp2_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto,
  			 u8 width, unsigned long *mode)
  {
  	u8 mask_width = mlxsw_sp_port_mask_width_get(width);
  	int i;
  
  	for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
  		if ((ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) &&
  		    (mask_width & mlxsw_sp2_port_link_mode[i].mask_width))
  			mlxsw_sp2_set_bit_ethtool(&mlxsw_sp2_port_link_mode[i],
  						  mode);
  	}
  }
  
  static u32
  mlxsw_sp2_from_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto)
  {
  	int i;
  
  	for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
  		if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask)
  			return mlxsw_sp2_port_link_mode[i].speed;
  	}
  
  	return SPEED_UNKNOWN;
  }
  
  static void
  mlxsw_sp2_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
  				 u32 ptys_eth_proto,
  				 struct ethtool_link_ksettings *cmd)
  {
  	cmd->base.speed = SPEED_UNKNOWN;
  	cmd->base.duplex = DUPLEX_UNKNOWN;
  
  	if (!carrier_ok)
  		return;
  
  	cmd->base.speed = mlxsw_sp2_from_ptys_speed(mlxsw_sp, ptys_eth_proto);
  	if (cmd->base.speed != SPEED_UNKNOWN)
  		cmd->base.duplex = DUPLEX_FULL;
  }
  
  static bool
  mlxsw_sp2_test_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode,
  			   const unsigned long *mode)
  {
  	int cnt = 0;
  	int i;
  
  	for (i = 0; i < link_mode->m_ethtool_len; i++) {
  		if (test_bit(link_mode->mask_ethtool[i], mode))
  			cnt++;
  	}
  
  	return cnt == link_mode->m_ethtool_len;
  }
  
  static u32
  mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width,
  			      const struct ethtool_link_ksettings *cmd)
  {
  	u8 mask_width = mlxsw_sp_port_mask_width_get(width);
  	u32 ptys_proto = 0;
  	int i;
  
  	for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
  		if ((mask_width & mlxsw_sp2_port_link_mode[i].mask_width) &&
  		    mlxsw_sp2_test_bit_ethtool(&mlxsw_sp2_port_link_mode[i],
  					       cmd->link_modes.advertising))
  			ptys_proto |= mlxsw_sp2_port_link_mode[i].mask;
  	}
  	return ptys_proto;
  }
  
  static u32 mlxsw_sp2_to_ptys_speed(struct mlxsw_sp *mlxsw_sp,
  				   u8 width, u32 speed)
  {
  	u8 mask_width = mlxsw_sp_port_mask_width_get(width);
  	u32 ptys_proto = 0;
  	int i;
  
  	for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
  		if ((speed == mlxsw_sp2_port_link_mode[i].speed) &&
  		    (mask_width & mlxsw_sp2_port_link_mode[i].mask_width))
  			ptys_proto |= mlxsw_sp2_port_link_mode[i].mask;
  	}
  	return ptys_proto;
  }
  
  static u32
  mlxsw_sp2_to_ptys_upper_speed(struct mlxsw_sp *mlxsw_sp, u32 upper_speed)
  {
  	u32 ptys_proto = 0;
  	int i;
  
  	for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
  		if (mlxsw_sp2_port_link_mode[i].speed <= upper_speed)
  			ptys_proto |= mlxsw_sp2_port_link_mode[i].mask;
  	}
  	return ptys_proto;
  }
  
  static int
  mlxsw_sp2_port_speed_base(struct mlxsw_sp *mlxsw_sp, u8 local_port,
  			  u32 *base_speed)
  {
  	char ptys_pl[MLXSW_REG_PTYS_LEN];
  	u32 eth_proto_cap;
  	int err;
  
  	/* In Spectrum-2, the speed of 1x can change from port to port, so query
  	 * it from firmware.
  	 */
  	mlxsw_reg_ptys_ext_eth_pack(ptys_pl, local_port, 0, false);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
  	if (err)
  		return err;
  	mlxsw_reg_ptys_ext_eth_unpack(ptys_pl, &eth_proto_cap, NULL, NULL);
  
  	if (eth_proto_cap &
  	    MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_1_LAUI_1_50GBASE_CR_KR) {
  		*base_speed = MLXSW_SP_PORT_BASE_SPEED_50G;
  		return 0;
  	}
  
  	if (eth_proto_cap &
  	    MLXSW_REG_PTYS_EXT_ETH_SPEED_25GAUI_1_25GBASE_CR_KR) {
  		*base_speed = MLXSW_SP_PORT_BASE_SPEED_25G;
  		return 0;
  	}
  
  	return -EIO;
  }
  
  static void
  mlxsw_sp2_reg_ptys_eth_pack(struct mlxsw_sp *mlxsw_sp, char *payload,
  			    u8 local_port, u32 proto_admin,
  			    bool autoneg)
  {
  	mlxsw_reg_ptys_ext_eth_pack(payload, local_port, proto_admin, autoneg);
  }
  
  static void
  mlxsw_sp2_reg_ptys_eth_unpack(struct mlxsw_sp *mlxsw_sp, char *payload,
  			      u32 *p_eth_proto_cap, u32 *p_eth_proto_admin,
  			      u32 *p_eth_proto_oper)
  {
  	mlxsw_reg_ptys_ext_eth_unpack(payload, p_eth_proto_cap,
  				      p_eth_proto_admin, p_eth_proto_oper);
  }
  
  static const struct mlxsw_sp_port_type_speed_ops
  mlxsw_sp2_port_type_speed_ops = {
  	.from_ptys_supported_port	= mlxsw_sp2_from_ptys_supported_port,
  	.from_ptys_link			= mlxsw_sp2_from_ptys_link,
  	.from_ptys_speed		= mlxsw_sp2_from_ptys_speed,
  	.from_ptys_speed_duplex		= mlxsw_sp2_from_ptys_speed_duplex,
  	.to_ptys_advert_link		= mlxsw_sp2_to_ptys_advert_link,
  	.to_ptys_speed			= mlxsw_sp2_to_ptys_speed,
  	.to_ptys_upper_speed		= mlxsw_sp2_to_ptys_upper_speed,
  	.port_speed_base		= mlxsw_sp2_port_speed_base,
  	.reg_ptys_eth_pack		= mlxsw_sp2_reg_ptys_eth_pack,
  	.reg_ptys_eth_unpack		= mlxsw_sp2_reg_ptys_eth_unpack,
  };
  
  static void
  mlxsw_sp_port_get_link_supported(struct mlxsw_sp *mlxsw_sp, u32 eth_proto_cap,
  				 u8 width, struct ethtool_link_ksettings *cmd)
  {
  	const struct mlxsw_sp_port_type_speed_ops *ops;
  
  	ops = mlxsw_sp->port_type_speed_ops;
  
  	ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
  	ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
  	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
  
  	ops->from_ptys_supported_port(mlxsw_sp, eth_proto_cap, cmd);
  	ops->from_ptys_link(mlxsw_sp, eth_proto_cap, width,
  			    cmd->link_modes.supported);
  }
  
  static void
  mlxsw_sp_port_get_link_advertise(struct mlxsw_sp *mlxsw_sp,
  				 u32 eth_proto_admin, bool autoneg, u8 width,
  				 struct ethtool_link_ksettings *cmd)
  {
  	const struct mlxsw_sp_port_type_speed_ops *ops;
  
  	ops = mlxsw_sp->port_type_speed_ops;
  
  	if (!autoneg)
  		return;
  
  	ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
  	ops->from_ptys_link(mlxsw_sp, eth_proto_admin, width,
  			    cmd->link_modes.advertising);
  }
  
  static u8
  mlxsw_sp_port_connector_port(enum mlxsw_reg_ptys_connector_type connector_type)
  {
  	switch (connector_type) {
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_UNKNOWN_OR_NO_CONNECTOR:
  		return PORT_OTHER;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_NONE:
  		return PORT_NONE;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_TP:
  		return PORT_TP;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_AUI:
  		return PORT_AUI;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_BNC:
  		return PORT_BNC;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_MII:
  		return PORT_MII;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_FIBRE:
  		return PORT_FIBRE;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_DA:
  		return PORT_DA;
  	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_OTHER:
  		return PORT_OTHER;
  	default:
  		WARN_ON_ONCE(1);
  		return PORT_OTHER;
  	}
  }
  
  static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
  					    struct ethtool_link_ksettings *cmd)
  {
  	u32 eth_proto_cap, eth_proto_admin, eth_proto_oper;
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	const struct mlxsw_sp_port_type_speed_ops *ops;
  	char ptys_pl[MLXSW_REG_PTYS_LEN];
  	u8 connector_type;
  	bool autoneg;
  	int err;
  
  	ops = mlxsw_sp->port_type_speed_ops;
  
  	autoneg = mlxsw_sp_port->link.autoneg;
  	ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
  			       0, false);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
  	if (err)
  		return err;
  	ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, &eth_proto_cap,
  				 &eth_proto_admin, &eth_proto_oper);
  
  	mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap,
  					 mlxsw_sp_port->mapping.width, cmd);
  
  	mlxsw_sp_port_get_link_advertise(mlxsw_sp, eth_proto_admin, autoneg,
  					 mlxsw_sp_port->mapping.width, cmd);
  
  	cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
  	connector_type = mlxsw_reg_ptys_connector_type_get(ptys_pl);
  	cmd->base.port = mlxsw_sp_port_connector_port(connector_type);
  	ops->from_ptys_speed_duplex(mlxsw_sp, netif_carrier_ok(dev),
  				    eth_proto_oper, cmd);
  
  	return 0;
  }
  
  static int
  mlxsw_sp_port_set_link_ksettings(struct net_device *dev,
  				 const struct ethtool_link_ksettings *cmd)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	const struct mlxsw_sp_port_type_speed_ops *ops;
  	char ptys_pl[MLXSW_REG_PTYS_LEN];
  	u32 eth_proto_cap, eth_proto_new;
  	bool autoneg;
  	int err;
  
  	ops = mlxsw_sp->port_type_speed_ops;
  
  	ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
  			       0, false);
  	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
  	if (err)
  		return err;
  	ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, &eth_proto_cap, NULL, NULL);
  
  	autoneg = cmd->base.autoneg == AUTONEG_ENABLE;
  	eth_proto_new = autoneg ?
  		ops->to_ptys_advert_link(mlxsw_sp, mlxsw_sp_port->mapping.width,
  					 cmd) :
  		ops->to_ptys_speed(mlxsw_sp, mlxsw_sp_port->mapping.width,
  				   cmd->base.speed);
  
  	eth_proto_new = eth_proto_new & eth_proto_cap;
  	if (!eth_proto_new) {
  		netdev_err(dev, "No supported speed requested\n");
  		return -EINVAL;
  	}
  
  	ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
  			       eth_proto_new, autoneg);
  	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
  	if (err)
  		return err;
  
  	mlxsw_sp_port->link.autoneg = autoneg;
  
  	if (!netif_running(dev))
  		return 0;
  
  	mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
  	mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
  
  	return 0;
  }
  
  static int mlxsw_sp_get_module_info(struct net_device *netdev,
  				    struct ethtool_modinfo *modinfo)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	int err;
  
  	err = mlxsw_env_get_module_info(mlxsw_sp->core,
  					mlxsw_sp_port->mapping.module,
  					modinfo);
  
  	return err;
  }
  
  static int mlxsw_sp_get_module_eeprom(struct net_device *netdev,
  				      struct ethtool_eeprom *ee,
  				      u8 *data)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	int err;
  
  	err = mlxsw_env_get_module_eeprom(netdev, mlxsw_sp->core,
  					  mlxsw_sp_port->mapping.module, ee,
  					  data);
  
  	return err;
  }
  
  static int
  mlxsw_sp_get_ts_info(struct net_device *netdev, struct ethtool_ts_info *info)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  
  	return mlxsw_sp->ptp_ops->get_ts_info(mlxsw_sp, info);
  }
  
  static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
  	.get_drvinfo		= mlxsw_sp_port_get_drvinfo,
  	.get_link		= ethtool_op_get_link,
  	.get_pauseparam		= mlxsw_sp_port_get_pauseparam,
  	.set_pauseparam		= mlxsw_sp_port_set_pauseparam,
  	.get_strings		= mlxsw_sp_port_get_strings,
  	.set_phys_id		= mlxsw_sp_port_set_phys_id,
  	.get_ethtool_stats	= mlxsw_sp_port_get_stats,
  	.get_sset_count		= mlxsw_sp_port_get_sset_count,
  	.get_link_ksettings	= mlxsw_sp_port_get_link_ksettings,
  	.set_link_ksettings	= mlxsw_sp_port_set_link_ksettings,
  	.get_module_info	= mlxsw_sp_get_module_info,
  	.get_module_eeprom	= mlxsw_sp_get_module_eeprom,
  	.get_ts_info		= mlxsw_sp_get_ts_info,
  };
  
  static int
  mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	const struct mlxsw_sp_port_type_speed_ops *ops;
  	char ptys_pl[MLXSW_REG_PTYS_LEN];
  	u32 eth_proto_admin;
  	u32 upper_speed;
  	u32 base_speed;
  	int err;
  
  	ops = mlxsw_sp->port_type_speed_ops;
  
  	err = ops->port_speed_base(mlxsw_sp, mlxsw_sp_port->local_port,
  				   &base_speed);
  	if (err)
  		return err;
  	upper_speed = base_speed * width;
  
  	eth_proto_admin = ops->to_ptys_upper_speed(mlxsw_sp, upper_speed);
  	ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
  			       eth_proto_admin, mlxsw_sp_port->link.autoneg);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
  }
  
  int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
  			  enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
  			  bool dwrr, u8 dwrr_weight)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char qeec_pl[MLXSW_REG_QEEC_LEN];
  
  	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
  			    next_index);
  	mlxsw_reg_qeec_de_set(qeec_pl, true);
  	mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
  	mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
  }
  
  int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				  enum mlxsw_reg_qeec_hr hr, u8 index,
  				  u8 next_index, u32 maxrate)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char qeec_pl[MLXSW_REG_QEEC_LEN];
  
  	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
  			    next_index);
  	mlxsw_reg_qeec_mase_set(qeec_pl, true);
  	mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
  }
  
  static int mlxsw_sp_port_min_bw_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				    enum mlxsw_reg_qeec_hr hr, u8 index,
  				    u8 next_index, u32 minrate)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char qeec_pl[MLXSW_REG_QEEC_LEN];
  
  	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
  			    next_index);
  	mlxsw_reg_qeec_mise_set(qeec_pl, true);
  	mlxsw_reg_qeec_min_shaper_rate_set(qeec_pl, minrate);
  
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
  }
  
  int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
  			      u8 switch_prio, u8 tclass)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char qtct_pl[MLXSW_REG_QTCT_LEN];
  
  	mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
  			    tclass);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
  }
  
  static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	int err, i;
  
  	/* Setup the elements hierarcy, so that each TC is linked to
  	 * one subgroup, which are all member in the same group.
  	 */
  	err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
  				    MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
  				    0);
  	if (err)
  		return err;
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
  					    MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
  					    0, false, 0);
  		if (err)
  			return err;
  	}
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
  					    MLXSW_REG_QEEC_HIERARCY_TC, i, i,
  					    false, 0);
  		if (err)
  			return err;
  
  		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
  					    MLXSW_REG_QEEC_HIERARCY_TC,
  					    i + 8, i,
  					    true, 100);
  		if (err)
  			return err;
  	}
  
  	/* Make sure the max shaper is disabled in all hierarchies that support
  	 * it. Note that this disables ptps (PTP shaper), but that is intended
  	 * for the initial configuration.
  	 */
  	err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
  					    MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
  					    MLXSW_REG_QEEC_MAS_DIS);
  	if (err)
  		return err;
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
  						    MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
  						    i, 0,
  						    MLXSW_REG_QEEC_MAS_DIS);
  		if (err)
  			return err;
  	}
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
  						    MLXSW_REG_QEEC_HIERARCY_TC,
  						    i, i,
  						    MLXSW_REG_QEEC_MAS_DIS);
  		if (err)
  			return err;
  
  		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
  						    MLXSW_REG_QEEC_HIERARCY_TC,
  						    i + 8, i,
  						    MLXSW_REG_QEEC_MAS_DIS);
  		if (err)
  			return err;
  	}
  
  	/* Configure the min shaper for multicast TCs. */
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_min_bw_set(mlxsw_sp_port,
  					       MLXSW_REG_QEEC_HIERARCY_TC,
  					       i + 8, i,
  					       MLXSW_REG_QEEC_MIS_MIN);
  		if (err)
  			return err;
  	}
  
  	/* Map all priorities to traffic class 0. */
  	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
  		err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
  		if (err)
  			return err;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_port_tc_mc_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
  					bool enable)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char qtctm_pl[MLXSW_REG_QTCTM_LEN];
  
  	mlxsw_reg_qtctm_pack(qtctm_pl, mlxsw_sp_port->local_port, enable);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtctm), qtctm_pl);
  }
  
  static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
  				bool split, u8 module, u8 width, u8 lane)
  {
  	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	struct net_device *dev;
  	int err;
  
  	err = mlxsw_core_port_init(mlxsw_sp->core, local_port,
  				   module + 1, split, lane / width,
  				   mlxsw_sp->base_mac,
  				   sizeof(mlxsw_sp->base_mac));
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
  			local_port);
  		return err;
  	}
  
  	dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
  	if (!dev) {
  		err = -ENOMEM;
  		goto err_alloc_etherdev;
  	}
  	SET_NETDEV_DEV(dev, mlxsw_sp->bus_info->dev);
  	mlxsw_sp_port = netdev_priv(dev);
  	mlxsw_sp_port->dev = dev;
  	mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
  	mlxsw_sp_port->local_port = local_port;
  	mlxsw_sp_port->pvid = MLXSW_SP_DEFAULT_VID;
  	mlxsw_sp_port->split = split;
  	mlxsw_sp_port->mapping.module = module;
  	mlxsw_sp_port->mapping.width = width;
  	mlxsw_sp_port->mapping.lane = lane;
  	mlxsw_sp_port->link.autoneg = 1;
  	INIT_LIST_HEAD(&mlxsw_sp_port->vlans_list);
  	INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
  
  	mlxsw_sp_port->pcpu_stats =
  		netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
  	if (!mlxsw_sp_port->pcpu_stats) {
  		err = -ENOMEM;
  		goto err_alloc_stats;
  	}
  
  	mlxsw_sp_port->sample = kzalloc(sizeof(*mlxsw_sp_port->sample),
  					GFP_KERNEL);
  	if (!mlxsw_sp_port->sample) {
  		err = -ENOMEM;
  		goto err_alloc_sample;
  	}
  
  	INIT_DELAYED_WORK(&mlxsw_sp_port->periodic_hw_stats.update_dw,
  			  &update_stats_cache);
  
  	dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
  	dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
  
  	err = mlxsw_sp_port_module_map(mlxsw_sp_port, module, width, lane);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to map module\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_module_map;
  	}
  
  	err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_swid_set;
  	}
  
  	err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
  			mlxsw_sp_port->local_port);
  		goto err_dev_addr_init;
  	}
  
  	netif_carrier_off(dev);
  
  	dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
  			 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
  	dev->hw_features |= NETIF_F_HW_TC | NETIF_F_LOOPBACK;
  
  	dev->min_mtu = 0;
  	dev->max_mtu = ETH_MAX_MTU;
  
  	/* Each packet needs to have a Tx header (metadata) on top all other
  	 * headers.
  	 */
  	dev->needed_headroom = MLXSW_TXHDR_LEN;
  
  	err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_system_port_mapping_set;
  	}
  
  	err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_speed_by_width_set;
  	}
  
  	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_mtu_set;
  	}
  
  	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
  	if (err)
  		goto err_port_admin_status_set;
  
  	err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_buffers_init;
  	}
  
  	err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_ets_init;
  	}
  
  	err = mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, true);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC MC mode\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_tc_mc_mode;
  	}
  
  	/* ETS and buffers must be initialized before DCB. */
  	err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_dcb_init;
  	}
  
  	err = mlxsw_sp_port_fids_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize FIDs\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_fids_init;
  	}
  
  	err = mlxsw_sp_tc_qdisc_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC qdiscs\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_qdiscs_init;
  	}
  
  	err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 0, VLAN_N_VID - 1, false,
  				     false);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to clear VLAN filter\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_vlan_clear;
  	}
  
  	err = mlxsw_sp_port_nve_init(mlxsw_sp_port);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize NVE\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_nve_init;
  	}
  
  	err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set PVID\n",
  			mlxsw_sp_port->local_port);
  		goto err_port_pvid_set;
  	}
  
  	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_create(mlxsw_sp_port,
  						       MLXSW_SP_DEFAULT_VID);
  	if (IS_ERR(mlxsw_sp_port_vlan)) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create VID 1\n",
  			mlxsw_sp_port->local_port);
  		err = PTR_ERR(mlxsw_sp_port_vlan);
  		goto err_port_vlan_create;
  	}
  	mlxsw_sp_port->default_vlan = mlxsw_sp_port_vlan;
  
  	INIT_DELAYED_WORK(&mlxsw_sp_port->ptp.shaper_dw,
  			  mlxsw_sp->ptp_ops->shaper_work);
  
  	mlxsw_sp->ports[local_port] = mlxsw_sp_port;
  	err = register_netdev(dev);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
  			mlxsw_sp_port->local_port);
  		goto err_register_netdev;
  	}
  
  	mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port,
  				mlxsw_sp_port, dev);
  	mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, 0);
  	return 0;
  
  err_register_netdev:
  	mlxsw_sp->ports[local_port] = NULL;
  	mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
  err_port_vlan_create:
  err_port_pvid_set:
  	mlxsw_sp_port_nve_fini(mlxsw_sp_port);
  err_port_nve_init:
  err_port_vlan_clear:
  	mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port);
  err_port_qdiscs_init:
  	mlxsw_sp_port_fids_fini(mlxsw_sp_port);
  err_port_fids_init:
  	mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
  err_port_dcb_init:
  	mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false);
  err_port_tc_mc_mode:
  err_port_ets_init:
  err_port_buffers_init:
  err_port_admin_status_set:
  err_port_mtu_set:
  err_port_speed_by_width_set:
  err_port_system_port_mapping_set:
  err_dev_addr_init:
  	mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
  err_port_swid_set:
  	mlxsw_sp_port_module_unmap(mlxsw_sp_port);
  err_port_module_map:
  	kfree(mlxsw_sp_port->sample);
  err_alloc_sample:
  	free_percpu(mlxsw_sp_port->pcpu_stats);
  err_alloc_stats:
  	free_netdev(dev);
  err_alloc_etherdev:
  	mlxsw_core_port_fini(mlxsw_sp->core, local_port);
  	return err;
  }
  
  static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
  
  	cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw);
  	cancel_delayed_work_sync(&mlxsw_sp_port->ptp.shaper_dw);
  	mlxsw_sp_port_ptp_clear(mlxsw_sp_port);
  	mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
  	unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
  	mlxsw_sp->ports[local_port] = NULL;
  	mlxsw_sp_port_vlan_flush(mlxsw_sp_port, true);
  	mlxsw_sp_port_nve_fini(mlxsw_sp_port);
  	mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port);
  	mlxsw_sp_port_fids_fini(mlxsw_sp_port);
  	mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
  	mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false);
  	mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
  	mlxsw_sp_port_module_unmap(mlxsw_sp_port);
  	kfree(mlxsw_sp_port->sample);
  	free_percpu(mlxsw_sp_port->pcpu_stats);
  	WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vlans_list));
  	free_netdev(mlxsw_sp_port->dev);
  	mlxsw_core_port_fini(mlxsw_sp->core, local_port);
  }
  
  static int mlxsw_sp_cpu_port_create(struct mlxsw_sp *mlxsw_sp)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	int err;
  
  	mlxsw_sp_port = kzalloc(sizeof(*mlxsw_sp_port), GFP_KERNEL);
  	if (!mlxsw_sp_port)
  		return -ENOMEM;
  
  	mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
  	mlxsw_sp_port->local_port = MLXSW_PORT_CPU_PORT;
  
  	err = mlxsw_core_cpu_port_init(mlxsw_sp->core,
  				       mlxsw_sp_port,
  				       mlxsw_sp->base_mac,
  				       sizeof(mlxsw_sp->base_mac));
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize core CPU port\n");
  		goto err_core_cpu_port_init;
  	}
  
  	mlxsw_sp->ports[MLXSW_PORT_CPU_PORT] = mlxsw_sp_port;
  	return 0;
  
  err_core_cpu_port_init:
  	kfree(mlxsw_sp_port);
  	return err;
  }
  
  static void mlxsw_sp_cpu_port_remove(struct mlxsw_sp *mlxsw_sp)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port =
  				mlxsw_sp->ports[MLXSW_PORT_CPU_PORT];
  
  	mlxsw_core_cpu_port_fini(mlxsw_sp->core);
  	mlxsw_sp->ports[MLXSW_PORT_CPU_PORT] = NULL;
  	kfree(mlxsw_sp_port);
  }
  
  static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port)
  {
  	return mlxsw_sp->ports[local_port] != NULL;
  }
  
  static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
  {
  	int i;
  
  	for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++)
  		if (mlxsw_sp_port_created(mlxsw_sp, i))
  			mlxsw_sp_port_remove(mlxsw_sp, i);
  	mlxsw_sp_cpu_port_remove(mlxsw_sp);
  	kfree(mlxsw_sp->port_to_module);
  	kfree(mlxsw_sp->ports);
  }
  
  static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
  {
  	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
  	u8 module, width, lane;
  	size_t alloc_size;
  	int i;
  	int err;
  
  	alloc_size = sizeof(struct mlxsw_sp_port *) * max_ports;
  	mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
  	if (!mlxsw_sp->ports)
  		return -ENOMEM;
  
  	mlxsw_sp->port_to_module = kmalloc_array(max_ports, sizeof(int),
  						 GFP_KERNEL);
  	if (!mlxsw_sp->port_to_module) {
  		err = -ENOMEM;
  		goto err_port_to_module_alloc;
  	}
  
  	err = mlxsw_sp_cpu_port_create(mlxsw_sp);
  	if (err)
  		goto err_cpu_port_create;
  
  	for (i = 1; i < max_ports; i++) {
  		/* Mark as invalid */
  		mlxsw_sp->port_to_module[i] = -1;
  
  		err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
  						    &width, &lane);
  		if (err)
  			goto err_port_module_info_get;
  		if (!width)
  			continue;
  		mlxsw_sp->port_to_module[i] = module;
  		err = mlxsw_sp_port_create(mlxsw_sp, i, false,
  					   module, width, lane);
  		if (err)
  			goto err_port_create;
  	}
  	return 0;
  
  err_port_create:
  err_port_module_info_get:
  	for (i--; i >= 1; i--)
  		if (mlxsw_sp_port_created(mlxsw_sp, i))
  			mlxsw_sp_port_remove(mlxsw_sp, i);
  	mlxsw_sp_cpu_port_remove(mlxsw_sp);
  err_cpu_port_create:
  	kfree(mlxsw_sp->port_to_module);
  err_port_to_module_alloc:
  	kfree(mlxsw_sp->ports);
  	return err;
  }
  
  static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
  {
  	u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;
  
  	return local_port - offset;
  }
  
  static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
  				      u8 module, unsigned int count, u8 offset)
  {
  	u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
  	int err, i;
  
  	for (i = 0; i < count; i++) {
  		err = mlxsw_sp_port_create(mlxsw_sp, base_port + i * offset,
  					   true, module, width, i * width);
  		if (err)
  			goto err_port_create;
  	}
  
  	return 0;
  
  err_port_create:
  	for (i--; i >= 0; i--)
  		if (mlxsw_sp_port_created(mlxsw_sp, base_port + i * offset))
  			mlxsw_sp_port_remove(mlxsw_sp, base_port + i * offset);
  	return err;
  }
  
  static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
  					 u8 base_port, unsigned int count)
  {
  	u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
  	int i;
  
  	/* Split by four means we need to re-create two ports, otherwise
  	 * only one.
  	 */
  	count = count / 2;
  
  	for (i = 0; i < count; i++) {
  		local_port = base_port + i * 2;
  		if (mlxsw_sp->port_to_module[local_port] < 0)
  			continue;
  		module = mlxsw_sp->port_to_module[local_port];
  
  		mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
  				     width, 0);
  	}
  }
  
  static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
  			       unsigned int count,
  			       struct netlink_ext_ack *extack)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  	u8 local_ports_in_1x, local_ports_in_2x, offset;
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	u8 module, cur_width, base_port;
  	int i;
  	int err;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_1X) ||
  	    !MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_2X))
  		return -EIO;
  
  	local_ports_in_1x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_1X);
  	local_ports_in_2x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_2X);
  
  	mlxsw_sp_port = mlxsw_sp->ports[local_port];
  	if (!mlxsw_sp_port) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
  			local_port);
  		NL_SET_ERR_MSG_MOD(extack, "Port number does not exist");
  		return -EINVAL;
  	}
  
  	module = mlxsw_sp_port->mapping.module;
  	cur_width = mlxsw_sp_port->mapping.width;
  
  	if (count != 2 && count != 4) {
  		netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
  		NL_SET_ERR_MSG_MOD(extack, "Port can only be split into 2 or 4 ports");
  		return -EINVAL;
  	}
  
  	if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
  		netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
  		NL_SET_ERR_MSG_MOD(extack, "Port cannot be split further");
  		return -EINVAL;
  	}
  
  	/* Make sure we have enough slave (even) ports for the split. */
  	if (count == 2) {
  		offset = local_ports_in_2x;
  		base_port = local_port;
  		if (mlxsw_sp->ports[base_port + local_ports_in_2x]) {
  			netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
  			NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration");
  			return -EINVAL;
  		}
  	} else {
  		offset = local_ports_in_1x;
  		base_port = mlxsw_sp_cluster_base_port_get(local_port);
  		if (mlxsw_sp->ports[base_port + 1] ||
  		    mlxsw_sp->ports[base_port + 3]) {
  			netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
  			NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration");
  			return -EINVAL;
  		}
  	}
  
  	for (i = 0; i < count; i++)
  		if (mlxsw_sp_port_created(mlxsw_sp, base_port + i * offset))
  			mlxsw_sp_port_remove(mlxsw_sp, base_port + i * offset);
  
  	err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count,
  					 offset);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
  		goto err_port_split_create;
  	}
  
  	return 0;
  
  err_port_split_create:
  	mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
  	return err;
  }
  
  static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port,
  				 struct netlink_ext_ack *extack)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  	u8 local_ports_in_1x, local_ports_in_2x, offset;
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	u8 cur_width, base_port;
  	unsigned int count;
  	int i;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_1X) ||
  	    !MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_2X))
  		return -EIO;
  
  	local_ports_in_1x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_1X);
  	local_ports_in_2x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_2X);
  
  	mlxsw_sp_port = mlxsw_sp->ports[local_port];
  	if (!mlxsw_sp_port) {
  		dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
  			local_port);
  		NL_SET_ERR_MSG_MOD(extack, "Port number does not exist");
  		return -EINVAL;
  	}
  
  	if (!mlxsw_sp_port->split) {
  		netdev_err(mlxsw_sp_port->dev, "Port was not split\n");
  		NL_SET_ERR_MSG_MOD(extack, "Port was not split");
  		return -EINVAL;
  	}
  
  	cur_width = mlxsw_sp_port->mapping.width;
  	count = cur_width == 1 ? 4 : 2;
  
  	if (count == 2)
  		offset = local_ports_in_2x;
  	else
  		offset = local_ports_in_1x;
  
  	base_port = mlxsw_sp_cluster_base_port_get(local_port);
  
  	/* Determine which ports to remove. */
  	if (count == 2 && local_port >= base_port + 2)
  		base_port = base_port + 2;
  
  	for (i = 0; i < count; i++)
  		if (mlxsw_sp_port_created(mlxsw_sp, base_port + i * offset))
  			mlxsw_sp_port_remove(mlxsw_sp, base_port + i * offset);
  
  	mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
  
  	return 0;
  }
  
  static void
  mlxsw_sp_port_down_wipe_counters(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	int i;
  
  	for (i = 0; i < TC_MAX_QUEUE; i++)
  		mlxsw_sp_port->periodic_hw_stats.xstats.backlog[i] = 0;
  }
  
  static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
  				     char *pude_pl, void *priv)
  {
  	struct mlxsw_sp *mlxsw_sp = priv;
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	enum mlxsw_reg_pude_oper_status status;
  	u8 local_port;
  
  	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
  	mlxsw_sp_port = mlxsw_sp->ports[local_port];
  	if (!mlxsw_sp_port)
  		return;
  
  	status = mlxsw_reg_pude_oper_status_get(pude_pl);
  	if (status == MLXSW_PORT_OPER_STATUS_UP) {
  		netdev_info(mlxsw_sp_port->dev, "link up\n");
  		netif_carrier_on(mlxsw_sp_port->dev);
  		mlxsw_core_schedule_dw(&mlxsw_sp_port->ptp.shaper_dw, 0);
  	} else {
  		netdev_info(mlxsw_sp_port->dev, "link down\n");
  		netif_carrier_off(mlxsw_sp_port->dev);
  		mlxsw_sp_port_down_wipe_counters(mlxsw_sp_port);
  	}
  }
  
  static void mlxsw_sp1_ptp_fifo_event_func(struct mlxsw_sp *mlxsw_sp,
  					  char *mtpptr_pl, bool ingress)
  {
  	u8 local_port;
  	u8 num_rec;
  	int i;
  
  	local_port = mlxsw_reg_mtpptr_local_port_get(mtpptr_pl);
  	num_rec = mlxsw_reg_mtpptr_num_rec_get(mtpptr_pl);
  	for (i = 0; i < num_rec; i++) {
  		u8 domain_number;
  		u8 message_type;
  		u16 sequence_id;
  		u64 timestamp;
  
  		mlxsw_reg_mtpptr_unpack(mtpptr_pl, i, &message_type,
  					&domain_number, &sequence_id,
  					&timestamp);
  		mlxsw_sp1_ptp_got_timestamp(mlxsw_sp, ingress, local_port,
  					    message_type, domain_number,
  					    sequence_id, timestamp);
  	}
  }
  
  static void mlxsw_sp1_ptp_ing_fifo_event_func(const struct mlxsw_reg_info *reg,
  					      char *mtpptr_pl, void *priv)
  {
  	struct mlxsw_sp *mlxsw_sp = priv;
  
  	mlxsw_sp1_ptp_fifo_event_func(mlxsw_sp, mtpptr_pl, true);
  }
  
  static void mlxsw_sp1_ptp_egr_fifo_event_func(const struct mlxsw_reg_info *reg,
  					      char *mtpptr_pl, void *priv)
  {
  	struct mlxsw_sp *mlxsw_sp = priv;
  
  	mlxsw_sp1_ptp_fifo_event_func(mlxsw_sp, mtpptr_pl, false);
  }
  
  void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb,
  				       u8 local_port, void *priv)
  {
  	struct mlxsw_sp *mlxsw_sp = priv;
  	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
  	struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
  
  	if (unlikely(!mlxsw_sp_port)) {
  		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
  				     local_port);
  		return;
  	}
  
  	skb->dev = mlxsw_sp_port->dev;
  
  	pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
  	u64_stats_update_begin(&pcpu_stats->syncp);
  	pcpu_stats->rx_packets++;
  	pcpu_stats->rx_bytes += skb->len;
  	u64_stats_update_end(&pcpu_stats->syncp);
  
  	skb->protocol = eth_type_trans(skb, skb->dev);
  	netif_receive_skb(skb);
  }
  
  static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port,
  					   void *priv)
  {
  	skb->offload_fwd_mark = 1;
  	return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
  }
  
  static void mlxsw_sp_rx_listener_l3_mark_func(struct sk_buff *skb,
  					      u8 local_port, void *priv)
  {
  	skb->offload_l3_fwd_mark = 1;
  	skb->offload_fwd_mark = 1;
  	return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
  }
  
  static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port,
  					     void *priv)
  {
  	struct mlxsw_sp *mlxsw_sp = priv;
  	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
  	struct psample_group *psample_group;
  	u32 size;
  
  	if (unlikely(!mlxsw_sp_port)) {
  		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received for non-existent port\n",
  				     local_port);
  		goto out;
  	}
  	if (unlikely(!mlxsw_sp_port->sample)) {
  		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received on unsupported port\n",
  				     local_port);
  		goto out;
  	}
  
  	size = mlxsw_sp_port->sample->truncate ?
  		  mlxsw_sp_port->sample->trunc_size : skb->len;
  
  	rcu_read_lock();
  	psample_group = rcu_dereference(mlxsw_sp_port->sample->psample_group);
  	if (!psample_group)
  		goto out_unlock;
  	psample_sample_packet(psample_group, skb, size,
  			      mlxsw_sp_port->dev->ifindex, 0,
  			      mlxsw_sp_port->sample->rate);
  out_unlock:
  	rcu_read_unlock();
  out:
  	consume_skb(skb);
  }
  
  static void mlxsw_sp_rx_listener_ptp(struct sk_buff *skb, u8 local_port,
  				     void *priv)
  {
  	struct mlxsw_sp *mlxsw_sp = priv;
  
  	mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
  }
  
  #define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl)	\
  	MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action,	\
  		  _is_ctrl, SP_##_trap_group, DISCARD)
  
  #define MLXSW_SP_RXL_MARK(_trap_id, _action, _trap_group, _is_ctrl)	\
  	MLXSW_RXL(mlxsw_sp_rx_listener_mark_func, _trap_id, _action,	\
  		_is_ctrl, SP_##_trap_group, DISCARD)
  
  #define MLXSW_SP_RXL_L3_MARK(_trap_id, _action, _trap_group, _is_ctrl)	\
  	MLXSW_RXL(mlxsw_sp_rx_listener_l3_mark_func, _trap_id, _action,	\
  		_is_ctrl, SP_##_trap_group, DISCARD)
  
  #define MLXSW_SP_EVENTL(_func, _trap_id)		\
  	MLXSW_EVENTL(_func, _trap_id, SP_EVENT)
  
  static const struct mlxsw_listener mlxsw_sp_listener[] = {
  	/* Events */
  	MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE),
  	/* L2 traps */
  	MLXSW_SP_RXL_NO_MARK(STP, TRAP_TO_CPU, STP, true),
  	MLXSW_SP_RXL_NO_MARK(LACP, TRAP_TO_CPU, LACP, true),
  	MLXSW_RXL(mlxsw_sp_rx_listener_ptp, LLDP, TRAP_TO_CPU,
  		  false, SP_LLDP, DISCARD),
  	MLXSW_SP_RXL_MARK(DHCP, MIRROR_TO_CPU, DHCP, false),
  	MLXSW_SP_RXL_MARK(IGMP_QUERY, MIRROR_TO_CPU, IGMP, false),
  	MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, TRAP_TO_CPU, IGMP, false),
  	MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, TRAP_TO_CPU, IGMP, false),
  	MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, TRAP_TO_CPU, IGMP, false),
  	MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, TRAP_TO_CPU, IGMP, false),
  	MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, ARP, false),
  	MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, ARP, false),
  	MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, IP2ME, false),
  	MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY, MIRROR_TO_CPU, IPV6_MLD,
  			  false),
  	MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD,
  			     false),
  	MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE, TRAP_TO_CPU, IPV6_MLD,
  			     false),
  	MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD,
  			     false),
  	/* L3 traps */
  	MLXSW_SP_RXL_MARK(MTUERROR, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(TTLERROR, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_L3_MARK(LBERROR, MIRROR_TO_CPU, LBERROR, false),
  	MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false),
  	MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP,
  			  false),
  	MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, TRAP_TO_CPU, ROUTER_EXP,
  			  false),
  	MLXSW_SP_RXL_MARK(IPV4_OSPF, TRAP_TO_CPU, OSPF, false),
  	MLXSW_SP_RXL_MARK(IPV6_OSPF, TRAP_TO_CPU, OSPF, false),
  	MLXSW_SP_RXL_MARK(IPV6_DHCP, TRAP_TO_CPU, DHCP, false),
  	MLXSW_SP_RXL_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false),
  	MLXSW_SP_RXL_MARK(IPV4_BGP, TRAP_TO_CPU, BGP, false),
  	MLXSW_SP_RXL_MARK(IPV6_BGP, TRAP_TO_CPU, BGP, false),
  	MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, TRAP_TO_CPU, IPV6_ND,
  			  false),
  	MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND,
  			  false),
  	MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, TRAP_TO_CPU, IPV6_ND,
  			  false),
  	MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND,
  			  false),
  	MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, TRAP_TO_CPU, IPV6_ND, false),
  	MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP,
  			  false),
  	MLXSW_SP_RXL_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, HOST_MISS, false),
  	MLXSW_SP_RXL_MARK(HOST_MISS_IPV6, TRAP_TO_CPU, HOST_MISS, false),
  	MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(IPIP_DECAP_ERROR, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(DECAP_ECN0, TRAP_TO_CPU, ROUTER_EXP, false),
  	MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, VRRP, false),
  	MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, VRRP, false),
  	/* PKT Sample trap */
  	MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU,
  		  false, SP_IP2ME, DISCARD),
  	/* ACL trap */
  	MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, IP2ME, false),
  	/* Multicast Router Traps */
  	MLXSW_SP_RXL_MARK(IPV4_PIM, TRAP_TO_CPU, PIM, false),
  	MLXSW_SP_RXL_MARK(IPV6_PIM, TRAP_TO_CPU, PIM, false),
  	MLXSW_SP_RXL_MARK(RPF, TRAP_TO_CPU, RPF, false),
  	MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false),
  	MLXSW_SP_RXL_L3_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false),
  	/* NVE traps */
  	MLXSW_SP_RXL_MARK(NVE_ENCAP_ARP, TRAP_TO_CPU, ARP, false),
  	MLXSW_SP_RXL_NO_MARK(NVE_DECAP_ARP, TRAP_TO_CPU, ARP, false),
  	/* PTP traps */
  	MLXSW_RXL(mlxsw_sp_rx_listener_ptp, PTP0, TRAP_TO_CPU,
  		  false, SP_PTP0, DISCARD),
  	MLXSW_SP_RXL_NO_MARK(PTP1, TRAP_TO_CPU, PTP1, false),
  };
  
  static const struct mlxsw_listener mlxsw_sp1_listener[] = {
  	/* Events */
  	MLXSW_EVENTL(mlxsw_sp1_ptp_egr_fifo_event_func, PTP_EGR_FIFO, SP_PTP0),
  	MLXSW_EVENTL(mlxsw_sp1_ptp_ing_fifo_event_func, PTP_ING_FIFO, SP_PTP0),
  };
  
  static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
  {
  	char qpcr_pl[MLXSW_REG_QPCR_LEN];
  	enum mlxsw_reg_qpcr_ir_units ir_units;
  	int max_cpu_policers;
  	bool is_bytes;
  	u8 burst_size;
  	u32 rate;
  	int i, err;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_CPU_POLICERS))
  		return -EIO;
  
  	max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS);
  
  	ir_units = MLXSW_REG_QPCR_IR_UNITS_M;
  	for (i = 0; i < max_cpu_policers; i++) {
  		is_bytes = false;
  		switch (i) {
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR:
  			rate = 128;
  			burst_size = 7;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD:
  			rate = 16 * 1024;
  			burst_size = 10;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
  			rate = 1024;
  			burst_size = 7;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
  			rate = 1024;
  			burst_size = 7;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0:
  			rate = 24 * 1024;
  			burst_size = 12;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1:
  			rate = 19 * 1024;
  			burst_size = 12;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP:
  			rate = 360;
  			burst_size = 7;
  			break;
  		default:
  			continue;
  		}
  
  		mlxsw_reg_qpcr_pack(qpcr_pl, i, ir_units, is_bytes, rate,
  				    burst_size);
  		err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(qpcr), qpcr_pl);
  		if (err)
  			return err;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
  {
  	char htgt_pl[MLXSW_REG_HTGT_LEN];
  	enum mlxsw_reg_htgt_trap_group i;
  	int max_cpu_policers;
  	int max_trap_groups;
  	u8 priority, tc;
  	u16 policer_id;
  	int err;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_TRAP_GROUPS))
  		return -EIO;
  
  	max_trap_groups = MLXSW_CORE_RES_GET(mlxsw_core, MAX_TRAP_GROUPS);
  	max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS);
  
  	for (i = 0; i < max_trap_groups; i++) {
  		policer_id = i;
  		switch (i) {
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP:
  			priority = 5;
  			tc = 5;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
  			priority = 4;
  			tc = 4;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD:
  			priority = 3;
  			tc = 3;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1:
  			priority = 2;
  			tc = 2;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR:
  			priority = 1;
  			tc = 1;
  			break;
  		case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT:
  			priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY;
  			tc = MLXSW_REG_HTGT_DEFAULT_TC;
  			policer_id = MLXSW_REG_HTGT_INVALID_POLICER;
  			break;
  		default:
  			continue;
  		}
  
  		if (max_cpu_policers <= policer_id &&
  		    policer_id != MLXSW_REG_HTGT_INVALID_POLICER)
  			return -EIO;
  
  		mlxsw_reg_htgt_pack(htgt_pl, i, policer_id, priority, tc);
  		err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
  		if (err)
  			return err;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_traps_register(struct mlxsw_sp *mlxsw_sp,
  				   const struct mlxsw_listener listeners[],
  				   size_t listeners_count)
  {
  	int i;
  	int err;
  
  	for (i = 0; i < listeners_count; i++) {
  		err = mlxsw_core_trap_register(mlxsw_sp->core,
  					       &listeners[i],
  					       mlxsw_sp);
  		if (err)
  			goto err_listener_register;
  
  	}
  	return 0;
  
  err_listener_register:
  	for (i--; i >= 0; i--) {
  		mlxsw_core_trap_unregister(mlxsw_sp->core,
  					   &listeners[i],
  					   mlxsw_sp);
  	}
  	return err;
  }
  
  static void mlxsw_sp_traps_unregister(struct mlxsw_sp *mlxsw_sp,
  				      const struct mlxsw_listener listeners[],
  				      size_t listeners_count)
  {
  	int i;
  
  	for (i = 0; i < listeners_count; i++) {
  		mlxsw_core_trap_unregister(mlxsw_sp->core,
  					   &listeners[i],
  					   mlxsw_sp);
  	}
  }
  
  static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
  {
  	int err;
  
  	err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core);
  	if (err)
  		return err;
  
  	err = mlxsw_sp_trap_groups_set(mlxsw_sp->core);
  	if (err)
  		return err;
  
  	err = mlxsw_sp_traps_register(mlxsw_sp, mlxsw_sp_listener,
  				      ARRAY_SIZE(mlxsw_sp_listener));
  	if (err)
  		return err;
  
  	err = mlxsw_sp_traps_register(mlxsw_sp, mlxsw_sp->listeners,
  				      mlxsw_sp->listeners_count);
  	if (err)
  		goto err_extra_traps_init;
  
  	return 0;
  
  err_extra_traps_init:
  	mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp_listener,
  				  ARRAY_SIZE(mlxsw_sp_listener));
  	return err;
  }
  
  static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
  {
  	mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp->listeners,
  				  mlxsw_sp->listeners_count);
  	mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp_listener,
  				  ARRAY_SIZE(mlxsw_sp_listener));
  }
  
  #define MLXSW_SP_LAG_SEED_INIT 0xcafecafe
  
  static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
  {
  	char slcr_pl[MLXSW_REG_SLCR_LEN];
  	u32 seed;
  	int err;
  
  	seed = jhash(mlxsw_sp->base_mac, sizeof(mlxsw_sp->base_mac),
  		     MLXSW_SP_LAG_SEED_INIT);
  	mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
  				     MLXSW_REG_SLCR_LAG_HASH_DMAC |
  				     MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
  				     MLXSW_REG_SLCR_LAG_HASH_VLANID |
  				     MLXSW_REG_SLCR_LAG_HASH_SIP |
  				     MLXSW_REG_SLCR_LAG_HASH_DIP |
  				     MLXSW_REG_SLCR_LAG_HASH_SPORT |
  				     MLXSW_REG_SLCR_LAG_HASH_DPORT |
  				     MLXSW_REG_SLCR_LAG_HASH_IPPROTO, seed);
  	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
  	if (err)
  		return err;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG) ||
  	    !MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS))
  		return -EIO;
  
  	mlxsw_sp->lags = kcalloc(MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG),
  				 sizeof(struct mlxsw_sp_upper),
  				 GFP_KERNEL);
  	if (!mlxsw_sp->lags)
  		return -ENOMEM;
  
  	return 0;
  }
  
  static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp)
  {
  	kfree(mlxsw_sp->lags);
  }
  
  static int mlxsw_sp_basic_trap_groups_set(struct mlxsw_core *mlxsw_core)
  {
  	char htgt_pl[MLXSW_REG_HTGT_LEN];
  
  	mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD,
  			    MLXSW_REG_HTGT_INVALID_POLICER,
  			    MLXSW_REG_HTGT_DEFAULT_PRIORITY,
  			    MLXSW_REG_HTGT_DEFAULT_TC);
  	return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
  }
  
  static const struct mlxsw_sp_ptp_ops mlxsw_sp1_ptp_ops = {
  	.clock_init	= mlxsw_sp1_ptp_clock_init,
  	.clock_fini	= mlxsw_sp1_ptp_clock_fini,
  	.init		= mlxsw_sp1_ptp_init,
  	.fini		= mlxsw_sp1_ptp_fini,
  	.receive	= mlxsw_sp1_ptp_receive,
  	.transmitted	= mlxsw_sp1_ptp_transmitted,
  	.hwtstamp_get	= mlxsw_sp1_ptp_hwtstamp_get,
  	.hwtstamp_set	= mlxsw_sp1_ptp_hwtstamp_set,
  	.shaper_work	= mlxsw_sp1_ptp_shaper_work,
  	.get_ts_info	= mlxsw_sp1_ptp_get_ts_info,
  	.get_stats_count = mlxsw_sp1_get_stats_count,
  	.get_stats_strings = mlxsw_sp1_get_stats_strings,
  	.get_stats	= mlxsw_sp1_get_stats,
  };
  
  static const struct mlxsw_sp_ptp_ops mlxsw_sp2_ptp_ops = {
  	.clock_init	= mlxsw_sp2_ptp_clock_init,
  	.clock_fini	= mlxsw_sp2_ptp_clock_fini,
  	.init		= mlxsw_sp2_ptp_init,
  	.fini		= mlxsw_sp2_ptp_fini,
  	.receive	= mlxsw_sp2_ptp_receive,
  	.transmitted	= mlxsw_sp2_ptp_transmitted,
  	.hwtstamp_get	= mlxsw_sp2_ptp_hwtstamp_get,
  	.hwtstamp_set	= mlxsw_sp2_ptp_hwtstamp_set,
  	.shaper_work	= mlxsw_sp2_ptp_shaper_work,
  	.get_ts_info	= mlxsw_sp2_ptp_get_ts_info,
  	.get_stats_count = mlxsw_sp2_get_stats_count,
  	.get_stats_strings = mlxsw_sp2_get_stats_strings,
  	.get_stats	= mlxsw_sp2_get_stats,
  };
  
  static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
  				    unsigned long event, void *ptr);
  
  static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
  			 const struct mlxsw_bus_info *mlxsw_bus_info)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  	int err;
  
  	mlxsw_sp->core = mlxsw_core;
  	mlxsw_sp->bus_info = mlxsw_bus_info;
  
  	err = mlxsw_sp_fw_rev_validate(mlxsw_sp);
  	if (err)
  		return err;
  
  	err = mlxsw_sp_base_mac_get(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
  		return err;
  	}
  
  	err = mlxsw_sp_kvdl_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize KVDL\n");
  		return err;
  	}
  
  	err = mlxsw_sp_fids_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize FIDs\n");
  		goto err_fids_init;
  	}
  
  	err = mlxsw_sp_traps_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps\n");
  		goto err_traps_init;
  	}
  
  	err = mlxsw_sp_devlink_traps_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize devlink traps\n");
  		goto err_devlink_traps_init;
  	}
  
  	err = mlxsw_sp_buffers_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
  		goto err_buffers_init;
  	}
  
  	err = mlxsw_sp_lag_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
  		goto err_lag_init;
  	}
  
  	/* Initialize SPAN before router and switchdev, so that those components
  	 * can call mlxsw_sp_span_respin().
  	 */
  	err = mlxsw_sp_span_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
  		goto err_span_init;
  	}
  
  	err = mlxsw_sp_switchdev_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
  		goto err_switchdev_init;
  	}
  
  	err = mlxsw_sp_counter_pool_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to init counter pool\n");
  		goto err_counter_pool_init;
  	}
  
  	err = mlxsw_sp_afa_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL actions\n");
  		goto err_afa_init;
  	}
  
  	err = mlxsw_sp_nve_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize NVE\n");
  		goto err_nve_init;
  	}
  
  	err = mlxsw_sp_acl_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL\n");
  		goto err_acl_init;
  	}
  
  	err = mlxsw_sp_router_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
  		goto err_router_init;
  	}
  
  	if (mlxsw_sp->bus_info->read_frc_capable) {
  		/* NULL is a valid return value from clock_init */
  		mlxsw_sp->clock =
  			mlxsw_sp->ptp_ops->clock_init(mlxsw_sp,
  						      mlxsw_sp->bus_info->dev);
  		if (IS_ERR(mlxsw_sp->clock)) {
  			err = PTR_ERR(mlxsw_sp->clock);
  			dev_err(mlxsw_sp->bus_info->dev, "Failed to init ptp clock\n");
  			goto err_ptp_clock_init;
  		}
  	}
  
  	if (mlxsw_sp->clock) {
  		/* NULL is a valid return value from ptp_ops->init */
  		mlxsw_sp->ptp_state = mlxsw_sp->ptp_ops->init(mlxsw_sp);
  		if (IS_ERR(mlxsw_sp->ptp_state)) {
  			err = PTR_ERR(mlxsw_sp->ptp_state);
  			dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize PTP\n");
  			goto err_ptp_init;
  		}
  	}
  
  	/* Initialize netdevice notifier after router and SPAN is initialized,
  	 * so that the event handler can use router structures and call SPAN
  	 * respin.
  	 */
  	mlxsw_sp->netdevice_nb.notifier_call = mlxsw_sp_netdevice_event;
  	err = register_netdevice_notifier(&mlxsw_sp->netdevice_nb);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to register netdev notifier\n");
  		goto err_netdev_notifier;
  	}
  
  	err = mlxsw_sp_dpipe_init(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to init pipeline debug\n");
  		goto err_dpipe_init;
  	}
  
  	err = mlxsw_sp_ports_create(mlxsw_sp);
  	if (err) {
  		dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
  		goto err_ports_create;
  	}
  
  	return 0;
  
  err_ports_create:
  	mlxsw_sp_dpipe_fini(mlxsw_sp);
  err_dpipe_init:
  	unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb);
  err_netdev_notifier:
  	if (mlxsw_sp->clock)
  		mlxsw_sp->ptp_ops->fini(mlxsw_sp->ptp_state);
  err_ptp_init:
  	if (mlxsw_sp->clock)
  		mlxsw_sp->ptp_ops->clock_fini(mlxsw_sp->clock);
  err_ptp_clock_init:
  	mlxsw_sp_router_fini(mlxsw_sp);
  err_router_init:
  	mlxsw_sp_acl_fini(mlxsw_sp);
  err_acl_init:
  	mlxsw_sp_nve_fini(mlxsw_sp);
  err_nve_init:
  	mlxsw_sp_afa_fini(mlxsw_sp);
  err_afa_init:
  	mlxsw_sp_counter_pool_fini(mlxsw_sp);
  err_counter_pool_init:
  	mlxsw_sp_switchdev_fini(mlxsw_sp);
  err_switchdev_init:
  	mlxsw_sp_span_fini(mlxsw_sp);
  err_span_init:
  	mlxsw_sp_lag_fini(mlxsw_sp);
  err_lag_init:
  	mlxsw_sp_buffers_fini(mlxsw_sp);
  err_buffers_init:
  	mlxsw_sp_devlink_traps_fini(mlxsw_sp);
  err_devlink_traps_init:
  	mlxsw_sp_traps_fini(mlxsw_sp);
  err_traps_init:
  	mlxsw_sp_fids_fini(mlxsw_sp);
  err_fids_init:
  	mlxsw_sp_kvdl_fini(mlxsw_sp);
  	return err;
  }
  
  static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
  			  const struct mlxsw_bus_info *mlxsw_bus_info)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  
  	mlxsw_sp->req_rev = &mlxsw_sp1_fw_rev;
  	mlxsw_sp->fw_filename = MLXSW_SP1_FW_FILENAME;
  	mlxsw_sp->kvdl_ops = &mlxsw_sp1_kvdl_ops;
  	mlxsw_sp->afa_ops = &mlxsw_sp1_act_afa_ops;
  	mlxsw_sp->afk_ops = &mlxsw_sp1_afk_ops;
  	mlxsw_sp->mr_tcam_ops = &mlxsw_sp1_mr_tcam_ops;
  	mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops;
  	mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr;
  	mlxsw_sp->mac_mask = mlxsw_sp1_mac_mask;
  	mlxsw_sp->rif_ops_arr = mlxsw_sp1_rif_ops_arr;
  	mlxsw_sp->sb_vals = &mlxsw_sp1_sb_vals;
  	mlxsw_sp->port_type_speed_ops = &mlxsw_sp1_port_type_speed_ops;
  	mlxsw_sp->ptp_ops = &mlxsw_sp1_ptp_ops;
  	mlxsw_sp->listeners = mlxsw_sp1_listener;
  	mlxsw_sp->listeners_count = ARRAY_SIZE(mlxsw_sp1_listener);
  
  	return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info);
  }
  
  static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
  			  const struct mlxsw_bus_info *mlxsw_bus_info)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  
  	mlxsw_sp->kvdl_ops = &mlxsw_sp2_kvdl_ops;
  	mlxsw_sp->afa_ops = &mlxsw_sp2_act_afa_ops;
  	mlxsw_sp->afk_ops = &mlxsw_sp2_afk_ops;
  	mlxsw_sp->mr_tcam_ops = &mlxsw_sp2_mr_tcam_ops;
  	mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops;
  	mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr;
  	mlxsw_sp->mac_mask = mlxsw_sp2_mac_mask;
  	mlxsw_sp->rif_ops_arr = mlxsw_sp2_rif_ops_arr;
  	mlxsw_sp->sb_vals = &mlxsw_sp2_sb_vals;
  	mlxsw_sp->port_type_speed_ops = &mlxsw_sp2_port_type_speed_ops;
  	mlxsw_sp->ptp_ops = &mlxsw_sp2_ptp_ops;
  
  	return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info);
  }
  
  static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  
  	mlxsw_sp_ports_remove(mlxsw_sp);
  	mlxsw_sp_dpipe_fini(mlxsw_sp);
  	unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb);
  	if (mlxsw_sp->clock) {
  		mlxsw_sp->ptp_ops->fini(mlxsw_sp->ptp_state);
  		mlxsw_sp->ptp_ops->clock_fini(mlxsw_sp->clock);
  	}
  	mlxsw_sp_router_fini(mlxsw_sp);
  	mlxsw_sp_acl_fini(mlxsw_sp);
  	mlxsw_sp_nve_fini(mlxsw_sp);
  	mlxsw_sp_afa_fini(mlxsw_sp);
  	mlxsw_sp_counter_pool_fini(mlxsw_sp);
  	mlxsw_sp_switchdev_fini(mlxsw_sp);
  	mlxsw_sp_span_fini(mlxsw_sp);
  	mlxsw_sp_lag_fini(mlxsw_sp);
  	mlxsw_sp_buffers_fini(mlxsw_sp);
  	mlxsw_sp_devlink_traps_fini(mlxsw_sp);
  	mlxsw_sp_traps_fini(mlxsw_sp);
  	mlxsw_sp_fids_fini(mlxsw_sp);
  	mlxsw_sp_kvdl_fini(mlxsw_sp);
  }
  
  /* Per-FID flood tables are used for both "true" 802.1D FIDs and emulated
   * 802.1Q FIDs
   */
  #define MLXSW_SP_FID_FLOOD_TABLE_SIZE	(MLXSW_SP_FID_8021D_MAX + \
  					 VLAN_VID_MASK - 1)
  
  static const struct mlxsw_config_profile mlxsw_sp1_config_profile = {
  	.used_max_mid			= 1,
  	.max_mid			= MLXSW_SP_MID_MAX,
  	.used_flood_tables		= 1,
  	.used_flood_mode		= 1,
  	.flood_mode			= 3,
  	.max_fid_flood_tables		= 3,
  	.fid_flood_table_size		= MLXSW_SP_FID_FLOOD_TABLE_SIZE,
  	.used_max_ib_mc			= 1,
  	.max_ib_mc			= 0,
  	.used_max_pkey			= 1,
  	.max_pkey			= 0,
  	.used_kvd_sizes			= 1,
  	.kvd_hash_single_parts		= 59,
  	.kvd_hash_double_parts		= 41,
  	.kvd_linear_size		= MLXSW_SP_KVD_LINEAR_SIZE,
  	.swid_config			= {
  		{
  			.used_type	= 1,
  			.type		= MLXSW_PORT_SWID_TYPE_ETH,
  		}
  	},
  };
  
  static const struct mlxsw_config_profile mlxsw_sp2_config_profile = {
  	.used_max_mid			= 1,
  	.max_mid			= MLXSW_SP_MID_MAX,
  	.used_flood_tables		= 1,
  	.used_flood_mode		= 1,
  	.flood_mode			= 3,
  	.max_fid_flood_tables		= 3,
  	.fid_flood_table_size		= MLXSW_SP_FID_FLOOD_TABLE_SIZE,
  	.used_max_ib_mc			= 1,
  	.max_ib_mc			= 0,
  	.used_max_pkey			= 1,
  	.max_pkey			= 0,
  	.swid_config			= {
  		{
  			.used_type	= 1,
  			.type		= MLXSW_PORT_SWID_TYPE_ETH,
  		}
  	},
  };
  
  static void
  mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core,
  				      struct devlink_resource_size_params *kvd_size_params,
  				      struct devlink_resource_size_params *linear_size_params,
  				      struct devlink_resource_size_params *hash_double_size_params,
  				      struct devlink_resource_size_params *hash_single_size_params)
  {
  	u32 single_size_min = MLXSW_CORE_RES_GET(mlxsw_core,
  						 KVD_SINGLE_MIN_SIZE);
  	u32 double_size_min = MLXSW_CORE_RES_GET(mlxsw_core,
  						 KVD_DOUBLE_MIN_SIZE);
  	u32 kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
  	u32 linear_size_min = 0;
  
  	devlink_resource_size_params_init(kvd_size_params, kvd_size, kvd_size,
  					  MLXSW_SP_KVD_GRANULARITY,
  					  DEVLINK_RESOURCE_UNIT_ENTRY);
  	devlink_resource_size_params_init(linear_size_params, linear_size_min,
  					  kvd_size - single_size_min -
  					  double_size_min,
  					  MLXSW_SP_KVD_GRANULARITY,
  					  DEVLINK_RESOURCE_UNIT_ENTRY);
  	devlink_resource_size_params_init(hash_double_size_params,
  					  double_size_min,
  					  kvd_size - single_size_min -
  					  linear_size_min,
  					  MLXSW_SP_KVD_GRANULARITY,
  					  DEVLINK_RESOURCE_UNIT_ENTRY);
  	devlink_resource_size_params_init(hash_single_size_params,
  					  single_size_min,
  					  kvd_size - double_size_min -
  					  linear_size_min,
  					  MLXSW_SP_KVD_GRANULARITY,
  					  DEVLINK_RESOURCE_UNIT_ENTRY);
  }
  
  static int mlxsw_sp1_resources_kvd_register(struct mlxsw_core *mlxsw_core)
  {
  	struct devlink *devlink = priv_to_devlink(mlxsw_core);
  	struct devlink_resource_size_params hash_single_size_params;
  	struct devlink_resource_size_params hash_double_size_params;
  	struct devlink_resource_size_params linear_size_params;
  	struct devlink_resource_size_params kvd_size_params;
  	u32 kvd_size, single_size, double_size, linear_size;
  	const struct mlxsw_config_profile *profile;
  	int err;
  
  	profile = &mlxsw_sp1_config_profile;
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SIZE))
  		return -EIO;
  
  	mlxsw_sp_resource_size_params_prepare(mlxsw_core, &kvd_size_params,
  					      &linear_size_params,
  					      &hash_double_size_params,
  					      &hash_single_size_params);
  
  	kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
  	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD,
  					kvd_size, MLXSW_SP_RESOURCE_KVD,
  					DEVLINK_RESOURCE_ID_PARENT_TOP,
  					&kvd_size_params);
  	if (err)
  		return err;
  
  	linear_size = profile->kvd_linear_size;
  	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR,
  					linear_size,
  					MLXSW_SP_RESOURCE_KVD_LINEAR,
  					MLXSW_SP_RESOURCE_KVD,
  					&linear_size_params);
  	if (err)
  		return err;
  
  	err = mlxsw_sp1_kvdl_resources_register(mlxsw_core);
  	if  (err)
  		return err;
  
  	double_size = kvd_size - linear_size;
  	double_size *= profile->kvd_hash_double_parts;
  	double_size /= profile->kvd_hash_double_parts +
  		       profile->kvd_hash_single_parts;
  	double_size = rounddown(double_size, MLXSW_SP_KVD_GRANULARITY);
  	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_DOUBLE,
  					double_size,
  					MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE,
  					MLXSW_SP_RESOURCE_KVD,
  					&hash_double_size_params);
  	if (err)
  		return err;
  
  	single_size = kvd_size - double_size - linear_size;
  	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_SINGLE,
  					single_size,
  					MLXSW_SP_RESOURCE_KVD_HASH_SINGLE,
  					MLXSW_SP_RESOURCE_KVD,
  					&hash_single_size_params);
  	if (err)
  		return err;
  
  	return 0;
  }
  
  static int mlxsw_sp2_resources_kvd_register(struct mlxsw_core *mlxsw_core)
  {
  	struct devlink *devlink = priv_to_devlink(mlxsw_core);
  	struct devlink_resource_size_params kvd_size_params;
  	u32 kvd_size;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SIZE))
  		return -EIO;
  
  	kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
  	devlink_resource_size_params_init(&kvd_size_params, kvd_size, kvd_size,
  					  MLXSW_SP_KVD_GRANULARITY,
  					  DEVLINK_RESOURCE_UNIT_ENTRY);
  
  	return devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD,
  					 kvd_size, MLXSW_SP_RESOURCE_KVD,
  					 DEVLINK_RESOURCE_ID_PARENT_TOP,
  					 &kvd_size_params);
  }
  
  static int mlxsw_sp1_resources_register(struct mlxsw_core *mlxsw_core)
  {
  	return mlxsw_sp1_resources_kvd_register(mlxsw_core);
  }
  
  static int mlxsw_sp2_resources_register(struct mlxsw_core *mlxsw_core)
  {
  	return mlxsw_sp2_resources_kvd_register(mlxsw_core);
  }
  
  static int mlxsw_sp_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
  				  const struct mlxsw_config_profile *profile,
  				  u64 *p_single_size, u64 *p_double_size,
  				  u64 *p_linear_size)
  {
  	struct devlink *devlink = priv_to_devlink(mlxsw_core);
  	u32 double_size;
  	int err;
  
  	if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SINGLE_MIN_SIZE) ||
  	    !MLXSW_CORE_RES_VALID(mlxsw_core, KVD_DOUBLE_MIN_SIZE))
  		return -EIO;
  
  	/* The hash part is what left of the kvd without the
  	 * linear part. It is split to the single size and
  	 * double size by the parts ratio from the profile.
  	 * Both sizes must be a multiplications of the
  	 * granularity from the profile. In case the user
  	 * provided the sizes they are obtained via devlink.
  	 */
  	err = devlink_resource_size_get(devlink,
  					MLXSW_SP_RESOURCE_KVD_LINEAR,
  					p_linear_size);
  	if (err)
  		*p_linear_size = profile->kvd_linear_size;
  
  	err = devlink_resource_size_get(devlink,
  					MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE,
  					p_double_size);
  	if (err) {
  		double_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) -
  			      *p_linear_size;
  		double_size *= profile->kvd_hash_double_parts;
  		double_size /= profile->kvd_hash_double_parts +
  			       profile->kvd_hash_single_parts;
  		*p_double_size = rounddown(double_size,
  					   MLXSW_SP_KVD_GRANULARITY);
  	}
  
  	err = devlink_resource_size_get(devlink,
  					MLXSW_SP_RESOURCE_KVD_HASH_SINGLE,
  					p_single_size);
  	if (err)
  		*p_single_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) -
  				 *p_double_size - *p_linear_size;
  
  	/* Check results are legal. */
  	if (*p_single_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_SINGLE_MIN_SIZE) ||
  	    *p_double_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_DOUBLE_MIN_SIZE) ||
  	    MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) < *p_linear_size)
  		return -EIO;
  
  	return 0;
  }
  
  static int
  mlxsw_sp_devlink_param_fw_load_policy_validate(struct devlink *devlink, u32 id,
  					       union devlink_param_value val,
  					       struct netlink_ext_ack *extack)
  {
  	if ((val.vu8 != DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER) &&
  	    (val.vu8 != DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH)) {
  		NL_SET_ERR_MSG_MOD(extack, "'fw_load_policy' must be 'driver' or 'flash'");
  		return -EINVAL;
  	}
  
  	return 0;
  }
  
  static const struct devlink_param mlxsw_sp_devlink_params[] = {
  	DEVLINK_PARAM_GENERIC(FW_LOAD_POLICY,
  			      BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
  			      NULL, NULL,
  			      mlxsw_sp_devlink_param_fw_load_policy_validate),
  };
  
  static int mlxsw_sp_params_register(struct mlxsw_core *mlxsw_core)
  {
  	struct devlink *devlink = priv_to_devlink(mlxsw_core);
  	union devlink_param_value value;
  	int err;
  
  	err = devlink_params_register(devlink, mlxsw_sp_devlink_params,
  				      ARRAY_SIZE(mlxsw_sp_devlink_params));
  	if (err)
  		return err;
  
  	value.vu8 = DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER;
  	devlink_param_driverinit_value_set(devlink,
  					   DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
  					   value);
  	return 0;
  }
  
  static void mlxsw_sp_params_unregister(struct mlxsw_core *mlxsw_core)
  {
  	devlink_params_unregister(priv_to_devlink(mlxsw_core),
  				  mlxsw_sp_devlink_params,
  				  ARRAY_SIZE(mlxsw_sp_devlink_params));
  }
  
  static int
  mlxsw_sp_params_acl_region_rehash_intrvl_get(struct devlink *devlink, u32 id,
  					     struct devlink_param_gset_ctx *ctx)
  {
  	struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  
  	ctx->val.vu32 = mlxsw_sp_acl_region_rehash_intrvl_get(mlxsw_sp);
  	return 0;
  }
  
  static int
  mlxsw_sp_params_acl_region_rehash_intrvl_set(struct devlink *devlink, u32 id,
  					     struct devlink_param_gset_ctx *ctx)
  {
  	struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  
  	return mlxsw_sp_acl_region_rehash_intrvl_set(mlxsw_sp, ctx->val.vu32);
  }
  
  static const struct devlink_param mlxsw_sp2_devlink_params[] = {
  	DEVLINK_PARAM_DRIVER(MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL,
  			     "acl_region_rehash_interval",
  			     DEVLINK_PARAM_TYPE_U32,
  			     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
  			     mlxsw_sp_params_acl_region_rehash_intrvl_get,
  			     mlxsw_sp_params_acl_region_rehash_intrvl_set,
  			     NULL),
  };
  
  static int mlxsw_sp2_params_register(struct mlxsw_core *mlxsw_core)
  {
  	struct devlink *devlink = priv_to_devlink(mlxsw_core);
  	union devlink_param_value value;
  	int err;
  
  	err = mlxsw_sp_params_register(mlxsw_core);
  	if (err)
  		return err;
  
  	err = devlink_params_register(devlink, mlxsw_sp2_devlink_params,
  				      ARRAY_SIZE(mlxsw_sp2_devlink_params));
  	if (err)
  		goto err_devlink_params_register;
  
  	value.vu32 = 0;
  	devlink_param_driverinit_value_set(devlink,
  					   MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL,
  					   value);
  	return 0;
  
  err_devlink_params_register:
  	mlxsw_sp_params_unregister(mlxsw_core);
  	return err;
  }
  
  static void mlxsw_sp2_params_unregister(struct mlxsw_core *mlxsw_core)
  {
  	devlink_params_unregister(priv_to_devlink(mlxsw_core),
  				  mlxsw_sp2_devlink_params,
  				  ARRAY_SIZE(mlxsw_sp2_devlink_params));
  	mlxsw_sp_params_unregister(mlxsw_core);
  }
  
  static void mlxsw_sp_ptp_transmitted(struct mlxsw_core *mlxsw_core,
  				     struct sk_buff *skb, u8 local_port)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
  
  	skb_pull(skb, MLXSW_TXHDR_LEN);
  	mlxsw_sp->ptp_ops->transmitted(mlxsw_sp, skb, local_port);
  }
  
  static struct mlxsw_driver mlxsw_sp1_driver = {
  	.kind				= mlxsw_sp1_driver_name,
  	.priv_size			= sizeof(struct mlxsw_sp),
  	.init				= mlxsw_sp1_init,
  	.fini				= mlxsw_sp_fini,
  	.basic_trap_groups_set		= mlxsw_sp_basic_trap_groups_set,
  	.port_split			= mlxsw_sp_port_split,
  	.port_unsplit			= mlxsw_sp_port_unsplit,
  	.sb_pool_get			= mlxsw_sp_sb_pool_get,
  	.sb_pool_set			= mlxsw_sp_sb_pool_set,
  	.sb_port_pool_get		= mlxsw_sp_sb_port_pool_get,
  	.sb_port_pool_set		= mlxsw_sp_sb_port_pool_set,
  	.sb_tc_pool_bind_get		= mlxsw_sp_sb_tc_pool_bind_get,
  	.sb_tc_pool_bind_set		= mlxsw_sp_sb_tc_pool_bind_set,
  	.sb_occ_snapshot		= mlxsw_sp_sb_occ_snapshot,
  	.sb_occ_max_clear		= mlxsw_sp_sb_occ_max_clear,
  	.sb_occ_port_pool_get		= mlxsw_sp_sb_occ_port_pool_get,
  	.sb_occ_tc_port_bind_get	= mlxsw_sp_sb_occ_tc_port_bind_get,
  	.flash_update			= mlxsw_sp_flash_update,
  	.trap_init			= mlxsw_sp_trap_init,
  	.trap_fini			= mlxsw_sp_trap_fini,
  	.trap_action_set		= mlxsw_sp_trap_action_set,
  	.trap_group_init		= mlxsw_sp_trap_group_init,
  	.txhdr_construct		= mlxsw_sp_txhdr_construct,
  	.resources_register		= mlxsw_sp1_resources_register,
  	.kvd_sizes_get			= mlxsw_sp_kvd_sizes_get,
  	.params_register		= mlxsw_sp_params_register,
  	.params_unregister		= mlxsw_sp_params_unregister,
  	.ptp_transmitted		= mlxsw_sp_ptp_transmitted,
  	.txhdr_len			= MLXSW_TXHDR_LEN,
  	.profile			= &mlxsw_sp1_config_profile,
  	.res_query_enabled		= true,
  };
  
  static struct mlxsw_driver mlxsw_sp2_driver = {
  	.kind				= mlxsw_sp2_driver_name,
  	.priv_size			= sizeof(struct mlxsw_sp),
  	.init				= mlxsw_sp2_init,
  	.fini				= mlxsw_sp_fini,
  	.basic_trap_groups_set		= mlxsw_sp_basic_trap_groups_set,
  	.port_split			= mlxsw_sp_port_split,
  	.port_unsplit			= mlxsw_sp_port_unsplit,
  	.sb_pool_get			= mlxsw_sp_sb_pool_get,
  	.sb_pool_set			= mlxsw_sp_sb_pool_set,
  	.sb_port_pool_get		= mlxsw_sp_sb_port_pool_get,
  	.sb_port_pool_set		= mlxsw_sp_sb_port_pool_set,
  	.sb_tc_pool_bind_get		= mlxsw_sp_sb_tc_pool_bind_get,
  	.sb_tc_pool_bind_set		= mlxsw_sp_sb_tc_pool_bind_set,
  	.sb_occ_snapshot		= mlxsw_sp_sb_occ_snapshot,
  	.sb_occ_max_clear		= mlxsw_sp_sb_occ_max_clear,
  	.sb_occ_port_pool_get		= mlxsw_sp_sb_occ_port_pool_get,
  	.sb_occ_tc_port_bind_get	= mlxsw_sp_sb_occ_tc_port_bind_get,
  	.flash_update			= mlxsw_sp_flash_update,
  	.trap_init			= mlxsw_sp_trap_init,
  	.trap_fini			= mlxsw_sp_trap_fini,
  	.trap_action_set		= mlxsw_sp_trap_action_set,
  	.trap_group_init		= mlxsw_sp_trap_group_init,
  	.txhdr_construct		= mlxsw_sp_txhdr_construct,
  	.resources_register		= mlxsw_sp2_resources_register,
  	.params_register		= mlxsw_sp2_params_register,
  	.params_unregister		= mlxsw_sp2_params_unregister,
  	.ptp_transmitted		= mlxsw_sp_ptp_transmitted,
  	.txhdr_len			= MLXSW_TXHDR_LEN,
  	.profile			= &mlxsw_sp2_config_profile,
  	.res_query_enabled		= true,
  };
  
  static struct mlxsw_driver mlxsw_sp3_driver = {
  	.kind				= mlxsw_sp3_driver_name,
  	.priv_size			= sizeof(struct mlxsw_sp),
  	.init				= mlxsw_sp2_init,
  	.fini				= mlxsw_sp_fini,
  	.basic_trap_groups_set		= mlxsw_sp_basic_trap_groups_set,
  	.port_split			= mlxsw_sp_port_split,
  	.port_unsplit			= mlxsw_sp_port_unsplit,
  	.sb_pool_get			= mlxsw_sp_sb_pool_get,
  	.sb_pool_set			= mlxsw_sp_sb_pool_set,
  	.sb_port_pool_get		= mlxsw_sp_sb_port_pool_get,
  	.sb_port_pool_set		= mlxsw_sp_sb_port_pool_set,
  	.sb_tc_pool_bind_get		= mlxsw_sp_sb_tc_pool_bind_get,
  	.sb_tc_pool_bind_set		= mlxsw_sp_sb_tc_pool_bind_set,
  	.sb_occ_snapshot		= mlxsw_sp_sb_occ_snapshot,
  	.sb_occ_max_clear		= mlxsw_sp_sb_occ_max_clear,
  	.sb_occ_port_pool_get		= mlxsw_sp_sb_occ_port_pool_get,
  	.sb_occ_tc_port_bind_get	= mlxsw_sp_sb_occ_tc_port_bind_get,
  	.flash_update			= mlxsw_sp_flash_update,
  	.trap_init			= mlxsw_sp_trap_init,
  	.trap_fini			= mlxsw_sp_trap_fini,
  	.trap_action_set		= mlxsw_sp_trap_action_set,
  	.trap_group_init		= mlxsw_sp_trap_group_init,
  	.txhdr_construct		= mlxsw_sp_txhdr_construct,
  	.resources_register		= mlxsw_sp2_resources_register,
  	.params_register		= mlxsw_sp2_params_register,
  	.params_unregister		= mlxsw_sp2_params_unregister,
  	.ptp_transmitted		= mlxsw_sp_ptp_transmitted,
  	.txhdr_len			= MLXSW_TXHDR_LEN,
  	.profile			= &mlxsw_sp2_config_profile,
  	.res_query_enabled		= true,
  };
  
  bool mlxsw_sp_port_dev_check(const struct net_device *dev)
  {
  	return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
  }
  
  static int mlxsw_sp_lower_dev_walk(struct net_device *lower_dev, void *data)
  {
  	struct mlxsw_sp_port **p_mlxsw_sp_port = data;
  	int ret = 0;
  
  	if (mlxsw_sp_port_dev_check(lower_dev)) {
  		*p_mlxsw_sp_port = netdev_priv(lower_dev);
  		ret = 1;
  	}
  
  	return ret;
  }
  
  struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port;
  
  	if (mlxsw_sp_port_dev_check(dev))
  		return netdev_priv(dev);
  
  	mlxsw_sp_port = NULL;
  	netdev_walk_all_lower_dev(dev, mlxsw_sp_lower_dev_walk, &mlxsw_sp_port);
  
  	return mlxsw_sp_port;
  }
  
  struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port;
  
  	mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
  	return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
  }
  
  struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port;
  
  	if (mlxsw_sp_port_dev_check(dev))
  		return netdev_priv(dev);
  
  	mlxsw_sp_port = NULL;
  	netdev_walk_all_lower_dev_rcu(dev, mlxsw_sp_lower_dev_walk,
  				      &mlxsw_sp_port);
  
  	return mlxsw_sp_port;
  }
  
  struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port;
  
  	rcu_read_lock();
  	mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
  	if (mlxsw_sp_port)
  		dev_hold(mlxsw_sp_port->dev);
  	rcu_read_unlock();
  	return mlxsw_sp_port;
  }
  
  void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	dev_put(mlxsw_sp_port->dev);
  }
  
  static void
  mlxsw_sp_port_lag_uppers_cleanup(struct mlxsw_sp_port *mlxsw_sp_port,
  				 struct net_device *lag_dev)
  {
  	struct net_device *br_dev = netdev_master_upper_dev_get(lag_dev);
  	struct net_device *upper_dev;
  	struct list_head *iter;
  
  	if (netif_is_bridge_port(lag_dev))
  		mlxsw_sp_port_bridge_leave(mlxsw_sp_port, lag_dev, br_dev);
  
  	netdev_for_each_upper_dev_rcu(lag_dev, upper_dev, iter) {
  		if (!netif_is_bridge_port(upper_dev))
  			continue;
  		br_dev = netdev_master_upper_dev_get(upper_dev);
  		mlxsw_sp_port_bridge_leave(mlxsw_sp_port, upper_dev, br_dev);
  	}
  }
  
  static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
  {
  	char sldr_pl[MLXSW_REG_SLDR_LEN];
  
  	mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
  }
  
  static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
  {
  	char sldr_pl[MLXSW_REG_SLDR_LEN];
  
  	mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
  }
  
  static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
  				     u16 lag_id, u8 port_index)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char slcor_pl[MLXSW_REG_SLCOR_LEN];
  
  	mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
  				      lag_id, port_index);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
  }
  
  static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
  					u16 lag_id)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char slcor_pl[MLXSW_REG_SLCOR_LEN];
  
  	mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
  					 lag_id);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
  }
  
  static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
  					u16 lag_id)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char slcor_pl[MLXSW_REG_SLCOR_LEN];
  
  	mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
  					lag_id);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
  }
  
  static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
  					 u16 lag_id)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char slcor_pl[MLXSW_REG_SLCOR_LEN];
  
  	mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
  					 lag_id);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
  }
  
  static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
  				  struct net_device *lag_dev,
  				  u16 *p_lag_id)
  {
  	struct mlxsw_sp_upper *lag;
  	int free_lag_id = -1;
  	u64 max_lag;
  	int i;
  
  	max_lag = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG);
  	for (i = 0; i < max_lag; i++) {
  		lag = mlxsw_sp_lag_get(mlxsw_sp, i);
  		if (lag->ref_count) {
  			if (lag->dev == lag_dev) {
  				*p_lag_id = i;
  				return 0;
  			}
  		} else if (free_lag_id < 0) {
  			free_lag_id = i;
  		}
  	}
  	if (free_lag_id < 0)
  		return -EBUSY;
  	*p_lag_id = free_lag_id;
  	return 0;
  }
  
  static bool
  mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
  			  struct net_device *lag_dev,
  			  struct netdev_lag_upper_info *lag_upper_info,
  			  struct netlink_ext_ack *extack)
  {
  	u16 lag_id;
  
  	if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) {
  		NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported LAG devices");
  		return false;
  	}
  	if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
  		NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");
  		return false;
  	}
  	return true;
  }
  
  static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
  				       u16 lag_id, u8 *p_port_index)
  {
  	u64 max_lag_members;
  	int i;
  
  	max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
  					     MAX_LAG_MEMBERS);
  	for (i = 0; i < max_lag_members; i++) {
  		if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
  			*p_port_index = i;
  			return 0;
  		}
  	}
  	return -EBUSY;
  }
  
  static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
  				  struct net_device *lag_dev)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	struct mlxsw_sp_upper *lag;
  	u16 lag_id;
  	u8 port_index;
  	int err;
  
  	err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
  	if (err)
  		return err;
  	lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
  	if (!lag->ref_count) {
  		err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
  		if (err)
  			return err;
  		lag->dev = lag_dev;
  	}
  
  	err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
  	if (err)
  		return err;
  	err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
  	if (err)
  		goto err_col_port_add;
  
  	mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
  				   mlxsw_sp_port->local_port);
  	mlxsw_sp_port->lag_id = lag_id;
  	mlxsw_sp_port->lagged = 1;
  	lag->ref_count++;
  
  	/* Port is no longer usable as a router interface */
  	if (mlxsw_sp_port->default_vlan->fid)
  		mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan);
  
  	return 0;
  
  err_col_port_add:
  	if (!lag->ref_count)
  		mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
  	return err;
  }
  
  static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
  				    struct net_device *lag_dev)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	u16 lag_id = mlxsw_sp_port->lag_id;
  	struct mlxsw_sp_upper *lag;
  
  	if (!mlxsw_sp_port->lagged)
  		return;
  	lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
  	WARN_ON(lag->ref_count == 0);
  
  	mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
  
  	/* Any VLANs configured on the port are no longer valid */
  	mlxsw_sp_port_vlan_flush(mlxsw_sp_port, false);
  	mlxsw_sp_port_vlan_cleanup(mlxsw_sp_port->default_vlan);
  	/* Make the LAG and its directly linked uppers leave bridges they
  	 * are memeber in
  	 */
  	mlxsw_sp_port_lag_uppers_cleanup(mlxsw_sp_port, lag_dev);
  
  	if (lag->ref_count == 1)
  		mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
  
  	mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
  				     mlxsw_sp_port->local_port);
  	mlxsw_sp_port->lagged = 0;
  	lag->ref_count--;
  
  	/* Make sure untagged frames are allowed to ingress */
  	mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
  }
  
  static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
  				      u16 lag_id)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char sldr_pl[MLXSW_REG_SLDR_LEN];
  
  	mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
  					 mlxsw_sp_port->local_port);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
  }
  
  static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
  					 u16 lag_id)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	char sldr_pl[MLXSW_REG_SLDR_LEN];
  
  	mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
  					    mlxsw_sp_port->local_port);
  	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
  }
  
  static int
  mlxsw_sp_port_lag_col_dist_enable(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	int err;
  
  	err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port,
  					   mlxsw_sp_port->lag_id);
  	if (err)
  		return err;
  
  	err = mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, mlxsw_sp_port->lag_id);
  	if (err)
  		goto err_dist_port_add;
  
  	return 0;
  
  err_dist_port_add:
  	mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, mlxsw_sp_port->lag_id);
  	return err;
  }
  
  static int
  mlxsw_sp_port_lag_col_dist_disable(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	int err;
  
  	err = mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
  					    mlxsw_sp_port->lag_id);
  	if (err)
  		return err;
  
  	err = mlxsw_sp_lag_col_port_disable(mlxsw_sp_port,
  					    mlxsw_sp_port->lag_id);
  	if (err)
  		goto err_col_port_disable;
  
  	return 0;
  
  err_col_port_disable:
  	mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, mlxsw_sp_port->lag_id);
  	return err;
  }
  
  static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
  				     struct netdev_lag_lower_state_info *info)
  {
  	if (info->tx_enabled)
  		return mlxsw_sp_port_lag_col_dist_enable(mlxsw_sp_port);
  	else
  		return mlxsw_sp_port_lag_col_dist_disable(mlxsw_sp_port);
  }
  
  static int mlxsw_sp_port_stp_set(struct mlxsw_sp_port *mlxsw_sp_port,
  				 bool enable)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	enum mlxsw_reg_spms_state spms_state;
  	char *spms_pl;
  	u16 vid;
  	int err;
  
  	spms_state = enable ? MLXSW_REG_SPMS_STATE_FORWARDING :
  			      MLXSW_REG_SPMS_STATE_DISCARDING;
  
  	spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
  	if (!spms_pl)
  		return -ENOMEM;
  	mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
  
  	for (vid = 0; vid < VLAN_N_VID; vid++)
  		mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
  
  	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
  	kfree(spms_pl);
  	return err;
  }
  
  static int mlxsw_sp_port_ovs_join(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	u16 vid = 1;
  	int err;
  
  	err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
  	if (err)
  		return err;
  	err = mlxsw_sp_port_stp_set(mlxsw_sp_port, true);
  	if (err)
  		goto err_port_stp_set;
  	err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 1, VLAN_N_VID - 2,
  				     true, false);
  	if (err)
  		goto err_port_vlan_set;
  
  	for (; vid <= VLAN_N_VID - 1; vid++) {
  		err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port,
  						     vid, false);
  		if (err)
  			goto err_vid_learning_set;
  	}
  
  	return 0;
  
  err_vid_learning_set:
  	for (vid--; vid >= 1; vid--)
  		mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true);
  err_port_vlan_set:
  	mlxsw_sp_port_stp_set(mlxsw_sp_port, false);
  err_port_stp_set:
  	mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
  	return err;
  }
  
  static void mlxsw_sp_port_ovs_leave(struct mlxsw_sp_port *mlxsw_sp_port)
  {
  	u16 vid;
  
  	for (vid = VLAN_N_VID - 1; vid >= 1; vid--)
  		mlxsw_sp_port_vid_learning_set(mlxsw_sp_port,
  					       vid, true);
  
  	mlxsw_sp_port_vlan_set(mlxsw_sp_port, 1, VLAN_N_VID - 2,
  			       false, false);
  	mlxsw_sp_port_stp_set(mlxsw_sp_port, false);
  	mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
  }
  
  static bool mlxsw_sp_bridge_has_multiple_vxlans(struct net_device *br_dev)
  {
  	unsigned int num_vxlans = 0;
  	struct net_device *dev;
  	struct list_head *iter;
  
  	netdev_for_each_lower_dev(br_dev, dev, iter) {
  		if (netif_is_vxlan(dev))
  			num_vxlans++;
  	}
  
  	return num_vxlans > 1;
  }
  
  static bool mlxsw_sp_bridge_vxlan_vlan_is_valid(struct net_device *br_dev)
  {
  	DECLARE_BITMAP(vlans, VLAN_N_VID) = {0};
  	struct net_device *dev;
  	struct list_head *iter;
  
  	netdev_for_each_lower_dev(br_dev, dev, iter) {
  		u16 pvid;
  		int err;
  
  		if (!netif_is_vxlan(dev))
  			continue;
  
  		err = mlxsw_sp_vxlan_mapped_vid(dev, &pvid);
  		if (err || !pvid)
  			continue;
  
  		if (test_and_set_bit(pvid, vlans))
  			return false;
  	}
  
  	return true;
  }
  
  static bool mlxsw_sp_bridge_vxlan_is_valid(struct net_device *br_dev,
  					   struct netlink_ext_ack *extack)
  {
  	if (br_multicast_enabled(br_dev)) {
  		NL_SET_ERR_MSG_MOD(extack, "Multicast can not be enabled on a bridge with a VxLAN device");
  		return false;
  	}
  
  	if (!br_vlan_enabled(br_dev) &&
  	    mlxsw_sp_bridge_has_multiple_vxlans(br_dev)) {
  		NL_SET_ERR_MSG_MOD(extack, "Multiple VxLAN devices are not supported in a VLAN-unaware bridge");
  		return false;
  	}
  
  	if (br_vlan_enabled(br_dev) &&
  	    !mlxsw_sp_bridge_vxlan_vlan_is_valid(br_dev)) {
  		NL_SET_ERR_MSG_MOD(extack, "Multiple VxLAN devices cannot have the same VLAN as PVID and egress untagged");
  		return false;
  	}
  
  	return true;
  }
  
  static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
  					       struct net_device *dev,
  					       unsigned long event, void *ptr)
  {
  	struct netdev_notifier_changeupper_info *info;
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	struct netlink_ext_ack *extack;
  	struct net_device *upper_dev;
  	struct mlxsw_sp *mlxsw_sp;
  	int err = 0;
  
  	mlxsw_sp_port = netdev_priv(dev);
  	mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	info = ptr;
  	extack = netdev_notifier_info_to_extack(&info->info);
  
  	switch (event) {
  	case NETDEV_PRECHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (!is_vlan_dev(upper_dev) &&
  		    !netif_is_lag_master(upper_dev) &&
  		    !netif_is_bridge_master(upper_dev) &&
  		    !netif_is_ovs_master(upper_dev) &&
  		    !netif_is_macvlan(upper_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
  			return -EINVAL;
  		}
  		if (!info->linking)
  			break;
  		if (netif_is_bridge_master(upper_dev) &&
  		    !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
  		    mlxsw_sp_bridge_has_vxlan(upper_dev) &&
  		    !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
  			return -EOPNOTSUPP;
  		if (netdev_has_any_upper_dev(upper_dev) &&
  		    (!netif_is_bridge_master(upper_dev) ||
  		     !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
  							  upper_dev))) {
  			NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported");
  			return -EINVAL;
  		}
  		if (netif_is_lag_master(upper_dev) &&
  		    !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
  					       info->upper_info, extack))
  			return -EINVAL;
  		if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Master device is a LAG master and this device has a VLAN");
  			return -EINVAL;
  		}
  		if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
  		    !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) {
  			NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on a LAG port");
  			return -EINVAL;
  		}
  		if (netif_is_macvlan(upper_dev) &&
  		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, lower_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
  			return -EOPNOTSUPP;
  		}
  		if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Master device is an OVS master and this device has a VLAN");
  			return -EINVAL;
  		}
  		if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on an OVS port");
  			return -EINVAL;
  		}
  		break;
  	case NETDEV_CHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (netif_is_bridge_master(upper_dev)) {
  			if (info->linking)
  				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
  								lower_dev,
  								upper_dev,
  								extack);
  			else
  				mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
  							   lower_dev,
  							   upper_dev);
  		} else if (netif_is_lag_master(upper_dev)) {
  			if (info->linking) {
  				err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
  							     upper_dev);
  			} else {
  				mlxsw_sp_port_lag_col_dist_disable(mlxsw_sp_port);
  				mlxsw_sp_port_lag_leave(mlxsw_sp_port,
  							upper_dev);
  			}
  		} else if (netif_is_ovs_master(upper_dev)) {
  			if (info->linking)
  				err = mlxsw_sp_port_ovs_join(mlxsw_sp_port);
  			else
  				mlxsw_sp_port_ovs_leave(mlxsw_sp_port);
  		} else if (netif_is_macvlan(upper_dev)) {
  			if (!info->linking)
  				mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
  		} else if (is_vlan_dev(upper_dev)) {
  			struct net_device *br_dev;
  
  			if (!netif_is_bridge_port(upper_dev))
  				break;
  			if (info->linking)
  				break;
  			br_dev = netdev_master_upper_dev_get(upper_dev);
  			mlxsw_sp_port_bridge_leave(mlxsw_sp_port, upper_dev,
  						   br_dev);
  		}
  		break;
  	}
  
  	return err;
  }
  
  static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
  					       unsigned long event, void *ptr)
  {
  	struct netdev_notifier_changelowerstate_info *info;
  	struct mlxsw_sp_port *mlxsw_sp_port;
  	int err;
  
  	mlxsw_sp_port = netdev_priv(dev);
  	info = ptr;
  
  	switch (event) {
  	case NETDEV_CHANGELOWERSTATE:
  		if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
  			err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
  							info->lower_state_info);
  			if (err)
  				netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
  		}
  		break;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_port_event(struct net_device *lower_dev,
  					 struct net_device *port_dev,
  					 unsigned long event, void *ptr)
  {
  	switch (event) {
  	case NETDEV_PRECHANGEUPPER:
  	case NETDEV_CHANGEUPPER:
  		return mlxsw_sp_netdevice_port_upper_event(lower_dev, port_dev,
  							   event, ptr);
  	case NETDEV_CHANGELOWERSTATE:
  		return mlxsw_sp_netdevice_port_lower_event(port_dev, event,
  							   ptr);
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
  					unsigned long event, void *ptr)
  {
  	struct net_device *dev;
  	struct list_head *iter;
  	int ret;
  
  	netdev_for_each_lower_dev(lag_dev, dev, iter) {
  		if (mlxsw_sp_port_dev_check(dev)) {
  			ret = mlxsw_sp_netdevice_port_event(lag_dev, dev, event,
  							    ptr);
  			if (ret)
  				return ret;
  		}
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev,
  					      struct net_device *dev,
  					      unsigned long event, void *ptr,
  					      u16 vid)
  {
  	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  	struct netdev_notifier_changeupper_info *info = ptr;
  	struct netlink_ext_ack *extack;
  	struct net_device *upper_dev;
  	int err = 0;
  
  	extack = netdev_notifier_info_to_extack(&info->info);
  
  	switch (event) {
  	case NETDEV_PRECHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (!netif_is_bridge_master(upper_dev) &&
  		    !netif_is_macvlan(upper_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
  			return -EINVAL;
  		}
  		if (!info->linking)
  			break;
  		if (netif_is_bridge_master(upper_dev) &&
  		    !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
  		    mlxsw_sp_bridge_has_vxlan(upper_dev) &&
  		    !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
  			return -EOPNOTSUPP;
  		if (netdev_has_any_upper_dev(upper_dev) &&
  		    (!netif_is_bridge_master(upper_dev) ||
  		     !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
  							  upper_dev))) {
  			NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported");
  			return -EINVAL;
  		}
  		if (netif_is_macvlan(upper_dev) &&
  		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, vlan_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
  			return -EOPNOTSUPP;
  		}
  		break;
  	case NETDEV_CHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (netif_is_bridge_master(upper_dev)) {
  			if (info->linking)
  				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
  								vlan_dev,
  								upper_dev,
  								extack);
  			else
  				mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
  							   vlan_dev,
  							   upper_dev);
  		} else if (netif_is_macvlan(upper_dev)) {
  			if (!info->linking)
  				mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
  		} else {
  			err = -EINVAL;
  			WARN_ON(1);
  		}
  		break;
  	}
  
  	return err;
  }
  
  static int mlxsw_sp_netdevice_lag_port_vlan_event(struct net_device *vlan_dev,
  						  struct net_device *lag_dev,
  						  unsigned long event,
  						  void *ptr, u16 vid)
  {
  	struct net_device *dev;
  	struct list_head *iter;
  	int ret;
  
  	netdev_for_each_lower_dev(lag_dev, dev, iter) {
  		if (mlxsw_sp_port_dev_check(dev)) {
  			ret = mlxsw_sp_netdevice_port_vlan_event(vlan_dev, dev,
  								 event, ptr,
  								 vid);
  			if (ret)
  				return ret;
  		}
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_bridge_vlan_event(struct net_device *vlan_dev,
  						struct net_device *br_dev,
  						unsigned long event, void *ptr,
  						u16 vid)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev);
  	struct netdev_notifier_changeupper_info *info = ptr;
  	struct netlink_ext_ack *extack;
  	struct net_device *upper_dev;
  
  	if (!mlxsw_sp)
  		return 0;
  
  	extack = netdev_notifier_info_to_extack(&info->info);
  
  	switch (event) {
  	case NETDEV_PRECHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (!netif_is_macvlan(upper_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
  			return -EOPNOTSUPP;
  		}
  		if (!info->linking)
  			break;
  		if (netif_is_macvlan(upper_dev) &&
  		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, vlan_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
  			return -EOPNOTSUPP;
  		}
  		break;
  	case NETDEV_CHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (info->linking)
  			break;
  		if (netif_is_macvlan(upper_dev))
  			mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
  		break;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
  					 unsigned long event, void *ptr)
  {
  	struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
  	u16 vid = vlan_dev_vlan_id(vlan_dev);
  
  	if (mlxsw_sp_port_dev_check(real_dev))
  		return mlxsw_sp_netdevice_port_vlan_event(vlan_dev, real_dev,
  							  event, ptr, vid);
  	else if (netif_is_lag_master(real_dev))
  		return mlxsw_sp_netdevice_lag_port_vlan_event(vlan_dev,
  							      real_dev, event,
  							      ptr, vid);
  	else if (netif_is_bridge_master(real_dev))
  		return mlxsw_sp_netdevice_bridge_vlan_event(vlan_dev, real_dev,
  							    event, ptr, vid);
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
  					   unsigned long event, void *ptr)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(br_dev);
  	struct netdev_notifier_changeupper_info *info = ptr;
  	struct netlink_ext_ack *extack;
  	struct net_device *upper_dev;
  
  	if (!mlxsw_sp)
  		return 0;
  
  	extack = netdev_notifier_info_to_extack(&info->info);
  
  	switch (event) {
  	case NETDEV_PRECHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (!is_vlan_dev(upper_dev) && !netif_is_macvlan(upper_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
  			return -EOPNOTSUPP;
  		}
  		if (!info->linking)
  			break;
  		if (netif_is_macvlan(upper_dev) &&
  		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, br_dev)) {
  			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
  			return -EOPNOTSUPP;
  		}
  		break;
  	case NETDEV_CHANGEUPPER:
  		upper_dev = info->upper_dev;
  		if (info->linking)
  			break;
  		if (is_vlan_dev(upper_dev))
  			mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, upper_dev);
  		if (netif_is_macvlan(upper_dev))
  			mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
  		break;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_macvlan_event(struct net_device *macvlan_dev,
  					    unsigned long event, void *ptr)
  {
  	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(macvlan_dev);
  	struct netdev_notifier_changeupper_info *info = ptr;
  	struct netlink_ext_ack *extack;
  
  	if (!mlxsw_sp || event != NETDEV_PRECHANGEUPPER)
  		return 0;
  
  	extack = netdev_notifier_info_to_extack(&info->info);
  
  	/* VRF enslavement is handled in mlxsw_sp_netdevice_vrf_event() */
  	NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
  
  	return -EOPNOTSUPP;
  }
  
  static bool mlxsw_sp_is_vrf_event(unsigned long event, void *ptr)
  {
  	struct netdev_notifier_changeupper_info *info = ptr;
  
  	if (event != NETDEV_PRECHANGEUPPER && event != NETDEV_CHANGEUPPER)
  		return false;
  	return netif_is_l3_master(info->upper_dev);
  }
  
  static int mlxsw_sp_netdevice_vxlan_event(struct mlxsw_sp *mlxsw_sp,
  					  struct net_device *dev,
  					  unsigned long event, void *ptr)
  {
  	struct netdev_notifier_changeupper_info *cu_info;
  	struct netdev_notifier_info *info = ptr;
  	struct netlink_ext_ack *extack;
  	struct net_device *upper_dev;
  
  	extack = netdev_notifier_info_to_extack(info);
  
  	switch (event) {
  	case NETDEV_CHANGEUPPER:
  		cu_info = container_of(info,
  				       struct netdev_notifier_changeupper_info,
  				       info);
  		upper_dev = cu_info->upper_dev;
  		if (!netif_is_bridge_master(upper_dev))
  			return 0;
  		if (!mlxsw_sp_lower_get(upper_dev))
  			return 0;
  		if (!mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
  			return -EOPNOTSUPP;
  		if (cu_info->linking) {
  			if (!netif_running(dev))
  				return 0;
  			/* When the bridge is VLAN-aware, the VNI of the VxLAN
  			 * device needs to be mapped to a VLAN, but at this
  			 * point no VLANs are configured on the VxLAN device
  			 */
  			if (br_vlan_enabled(upper_dev))
  				return 0;
  			return mlxsw_sp_bridge_vxlan_join(mlxsw_sp, upper_dev,
  							  dev, 0, extack);
  		} else {
  			/* VLANs were already flushed, which triggered the
  			 * necessary cleanup
  			 */
  			if (br_vlan_enabled(upper_dev))
  				return 0;
  			mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, dev);
  		}
  		break;
  	case NETDEV_PRE_UP:
  		upper_dev = netdev_master_upper_dev_get(dev);
  		if (!upper_dev)
  			return 0;
  		if (!netif_is_bridge_master(upper_dev))
  			return 0;
  		if (!mlxsw_sp_lower_get(upper_dev))
  			return 0;
  		return mlxsw_sp_bridge_vxlan_join(mlxsw_sp, upper_dev, dev, 0,
  						  extack);
  	case NETDEV_DOWN:
  		upper_dev = netdev_master_upper_dev_get(dev);
  		if (!upper_dev)
  			return 0;
  		if (!netif_is_bridge_master(upper_dev))
  			return 0;
  		if (!mlxsw_sp_lower_get(upper_dev))
  			return 0;
  		mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, dev);
  		break;
  	}
  
  	return 0;
  }
  
  static int mlxsw_sp_netdevice_event(struct notifier_block *nb,
  				    unsigned long event, void *ptr)
  {
  	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
  	struct mlxsw_sp_span_entry *span_entry;
  	struct mlxsw_sp *mlxsw_sp;
  	int err = 0;
  
  	mlxsw_sp = container_of(nb, struct mlxsw_sp, netdevice_nb);
  	if (event == NETDEV_UNREGISTER) {
  		span_entry = mlxsw_sp_span_entry_find_by_port(mlxsw_sp, dev);
  		if (span_entry)
  			mlxsw_sp_span_entry_invalidate(mlxsw_sp, span_entry);
  	}
  	mlxsw_sp_span_respin(mlxsw_sp);
  
  	if (netif_is_vxlan(dev))
  		err = mlxsw_sp_netdevice_vxlan_event(mlxsw_sp, dev, event, ptr);
  	if (mlxsw_sp_netdev_is_ipip_ol(mlxsw_sp, dev))
  		err = mlxsw_sp_netdevice_ipip_ol_event(mlxsw_sp, dev,
  						       event, ptr);
  	else if (mlxsw_sp_netdev_is_ipip_ul(mlxsw_sp, dev))
  		err = mlxsw_sp_netdevice_ipip_ul_event(mlxsw_sp, dev,
  						       event, ptr);
  	else if (event == NETDEV_PRE_CHANGEADDR ||
  		 event == NETDEV_CHANGEADDR ||
  		 event == NETDEV_CHANGEMTU)
  		err = mlxsw_sp_netdevice_router_port_event(dev, event, ptr);
  	else if (mlxsw_sp_is_vrf_event(event, ptr))
  		err = mlxsw_sp_netdevice_vrf_event(dev, event, ptr);
  	else if (mlxsw_sp_port_dev_check(dev))
  		err = mlxsw_sp_netdevice_port_event(dev, dev, event, ptr);
  	else if (netif_is_lag_master(dev))
  		err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
  	else if (is_vlan_dev(dev))
  		err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
  	else if (netif_is_bridge_master(dev))
  		err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
  	else if (netif_is_macvlan(dev))
  		err = mlxsw_sp_netdevice_macvlan_event(dev, event, ptr);
  
  	return notifier_from_errno(err);
  }
  
  static struct notifier_block mlxsw_sp_inetaddr_valid_nb __read_mostly = {
  	.notifier_call = mlxsw_sp_inetaddr_valid_event,
  };
  
  static struct notifier_block mlxsw_sp_inet6addr_valid_nb __read_mostly = {
  	.notifier_call = mlxsw_sp_inet6addr_valid_event,
  };
  
  static const struct pci_device_id mlxsw_sp1_pci_id_table[] = {
  	{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM), 0},
  	{0, },
  };
  
  static struct pci_driver mlxsw_sp1_pci_driver = {
  	.name = mlxsw_sp1_driver_name,
  	.id_table = mlxsw_sp1_pci_id_table,
  };
  
  static const struct pci_device_id mlxsw_sp2_pci_id_table[] = {
  	{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM2), 0},
  	{0, },
  };
  
  static struct pci_driver mlxsw_sp2_pci_driver = {
  	.name = mlxsw_sp2_driver_name,
  	.id_table = mlxsw_sp2_pci_id_table,
  };
  
  static const struct pci_device_id mlxsw_sp3_pci_id_table[] = {
  	{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM3), 0},
  	{0, },
  };
  
  static struct pci_driver mlxsw_sp3_pci_driver = {
  	.name = mlxsw_sp3_driver_name,
  	.id_table = mlxsw_sp3_pci_id_table,
  };
  
  static int __init mlxsw_sp_module_init(void)
  {
  	int err;
  
  	register_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb);
  	register_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb);
  
  	err = mlxsw_core_driver_register(&mlxsw_sp1_driver);
  	if (err)
  		goto err_sp1_core_driver_register;
  
  	err = mlxsw_core_driver_register(&mlxsw_sp2_driver);
  	if (err)
  		goto err_sp2_core_driver_register;
  
  	err = mlxsw_core_driver_register(&mlxsw_sp3_driver);
  	if (err)
  		goto err_sp3_core_driver_register;
  
  	err = mlxsw_pci_driver_register(&mlxsw_sp1_pci_driver);
  	if (err)
  		goto err_sp1_pci_driver_register;
  
  	err = mlxsw_pci_driver_register(&mlxsw_sp2_pci_driver);
  	if (err)
  		goto err_sp2_pci_driver_register;
  
  	err = mlxsw_pci_driver_register(&mlxsw_sp3_pci_driver);
  	if (err)
  		goto err_sp3_pci_driver_register;
  
  	return 0;
  
  err_sp3_pci_driver_register:
  	mlxsw_pci_driver_unregister(&mlxsw_sp2_pci_driver);
  err_sp2_pci_driver_register:
  	mlxsw_pci_driver_unregister(&mlxsw_sp1_pci_driver);
  err_sp1_pci_driver_register:
  	mlxsw_core_driver_unregister(&mlxsw_sp3_driver);
  err_sp3_core_driver_register:
  	mlxsw_core_driver_unregister(&mlxsw_sp2_driver);
  err_sp2_core_driver_register:
  	mlxsw_core_driver_unregister(&mlxsw_sp1_driver);
  err_sp1_core_driver_register:
  	unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb);
  	unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb);
  	return err;
  }
  
  static void __exit mlxsw_sp_module_exit(void)
  {
  	mlxsw_pci_driver_unregister(&mlxsw_sp3_pci_driver);
  	mlxsw_pci_driver_unregister(&mlxsw_sp2_pci_driver);
  	mlxsw_pci_driver_unregister(&mlxsw_sp1_pci_driver);
  	mlxsw_core_driver_unregister(&mlxsw_sp3_driver);
  	mlxsw_core_driver_unregister(&mlxsw_sp2_driver);
  	mlxsw_core_driver_unregister(&mlxsw_sp1_driver);
  	unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb);
  	unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb);
  }
  
  module_init(mlxsw_sp_module_init);
  module_exit(mlxsw_sp_module_exit);
  
  MODULE_LICENSE("Dual BSD/GPL");
  MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
  MODULE_DESCRIPTION("Mellanox Spectrum driver");
  MODULE_DEVICE_TABLE(pci, mlxsw_sp1_pci_id_table);
  MODULE_DEVICE_TABLE(pci, mlxsw_sp2_pci_id_table);
  MODULE_DEVICE_TABLE(pci, mlxsw_sp3_pci_id_table);
  MODULE_FIRMWARE(MLXSW_SP1_FW_FILENAME);
  