path: root/drivers/net/dpaa2/mc/fsl_dpni.h

/*-
 * This file is provided under a dual BSD/GPLv2 license. When using or
 * redistributing this file, you may do so under either license.
 *
 *   BSD LICENSE
 *
 * Copyright 2013-2016 Freescale Semiconductor Inc.
 * Copyright 2016-2017 NXP.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * * Neither the name of the above-listed copyright holders nor the
 * names of any contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 *
 *   GPL LICENSE SUMMARY
 *
 * ALTERNATIVELY, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") as published by the Free Software
 * Foundation, either version 2 of that License or (at your option) any
 * later version.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef __FSL_DPNI_H
#define __FSL_DPNI_H

#include <fsl_dpkg.h>

struct fsl_mc_io;

/**
 * Data Path Network Interface API
 * Contains initialization APIs and runtime control APIs for DPNI
 */

/** General DPNI macros */

/**
 * Maximum number of traffic classes
 */
#define DPNI_MAX_TC				8
/**
 * Maximum number of buffer pools per DPNI
 */
#define DPNI_MAX_DPBP				8
/**
 * Maximum number of storage-profiles per DPNI
 */
#define DPNI_MAX_SP				2

/**
 * All traffic classes considered; see dpni_set_queue()
 */
#define DPNI_ALL_TCS				(uint8_t)(-1)
/**
 * All flows within traffic class considered; see dpni_set_queue()
 */
#define DPNI_ALL_TC_FLOWS			(uint16_t)(-1)

/**
 * Tx traffic is always released to a buffer pool on transmit, there are no
 * resources allocated to have the frames confirmed back to the source after
 * transmission.
 */
#define DPNI_OPT_TX_FRM_RELEASE			0x000001
/**
 * Disables support for MAC address filtering for addresses other than primary
 * MAC address. This affects both unicast and multicast. Promiscuous mode can
 * still be enabled/disabled for both unicast and multicast. If promiscuous mode
 * is disabled, only traffic matching the primary MAC address will be accepted.
 */
#define DPNI_OPT_NO_MAC_FILTER			0x000002
/**
 * Allocate policers for this DPNI. They can be used to rate-limit traffic per
 * traffic class (TC) basis.
 */
#define DPNI_OPT_HAS_POLICING			0x000004
/**
 * Congestion can be managed in several ways, allowing the buffer pool to
 * deplete on ingress, taildrop on each queue or use congestion groups for sets
 * of queues. If set, it configures a single congestion groups across all TCs.
 * If reset, a congestion group is allocated for each TC. Only relevant if the
 * DPNI has multiple traffic classes.
 */
#define DPNI_OPT_SHARED_CONGESTION		0x000008
/**
 * Enables TCAM for Flow Steering and QoS look-ups. If not specified, all
 * look-ups are exact match. Note that TCAM is not available on LS1088 and its
 * variants. Setting this bit on these SoCs will trigger an error.
 */
#define DPNI_OPT_HAS_KEY_MASKING		0x000010
/**
 * Disables the flow steering table.
 */
#define DPNI_OPT_NO_FS				0x000020

int dpni_open(struct fsl_mc_io *mc_io,
	      uint32_t cmd_flags,
	      int dpni_id,
	      uint16_t *token);

int dpni_close(struct fsl_mc_io *mc_io,
	       uint32_t cmd_flags,
	       uint16_t token);

/**
 * struct dpni_cfg - Structure representing DPNI configuration
 * @mac_addr:	Primary MAC address
 * @adv:	Advanced parameters; default is all zeros;
 *		use this structure to change default settings
 */
struct dpni_cfg {
	/**
	 * @options: Any combination of the following options:
	 *		DPNI_OPT_TX_FRM_RELEASE
	 *		DPNI_OPT_NO_MAC_FILTER
	 *		DPNI_OPT_HAS_POLICING
	 *		DPNI_OPT_SHARED_CONGESTION
	 *		DPNI_OPT_HAS_KEY_MASKING
	 *		DPNI_OPT_NO_FS
	 * @fs_entries: Number of entries in the flow steering table.
	 *		This table is used to select the ingress queue for
	 *		ingress traffic, targeting a GPP core or another.
	 *		In addition it can be used to discard traffic that
	 *		matches the set rule. It is either an exact match table
	 *		or a TCAM table, depending on DPNI_OPT_ HAS_KEY_MASKING
	 *		bit in OPTIONS field. This field is ignored if
	 *		DPNI_OPT_NO_FS bit is set in OPTIONS field. Otherwise,
	 *		value 0 defaults to 64. Maximum supported value is 1024.
	 *		Note that the total number of entries is limited on the
	 *		SoC to as low as 512 entries if TCAM is used.
	 * @vlan_filter_entries: Number of entries in the VLAN address filtering
	 *		table. This is an exact match table used to filter
	 *		ingress traffic based on VLAN IDs. Value 0 disables VLAN
	 *		filtering. Maximum supported value is 16.
	 * @mac_filter_entries: Number of entries in the MAC address filtering
	 *		table. This is an exact match table and allows both
	 *		unicast and multicast entries. The primary MAC address
	 *		of the network interface is not part of this table,
	 *		this contains only entries in addition to it. This
	 *		field is ignored if DPNI_OPT_ NO_MAC_FILTER is set in
	 *		OPTIONS field. Otherwise, value 0 defaults to 80.
	 *		Maximum supported value is 80.
	 * @num_queues: Number of Tx and Rx queues used for traffic
	 *		distribution. This is orthogonal to QoS and is only
	 *		used to distribute traffic to multiple GPP cores.
	 *		This configuration affects the number of Tx queues
	 *		(logical FQs, all associated with a single CEETM queue),
	 *		Rx queues and Tx confirmation queues, if applicable.
	 *		Value 0 defaults to one queue. Maximum supported value
	 *		is 8.
	 * @num_tcs: Number of traffic classes (TCs), reserved for the DPNI.
	 *		TCs can have different priority levels for the purpose
	 *		of Tx scheduling (see DPNI_SET_TX_SELECTION), different
	 *		BPs (DPNI_ SET_POOLS), policers. There are dedicated QM
	 *		queues for traffic classes (including class queues on
	 *		Tx). Value 0 defaults to one TC. Maximum supported value
	 *		is 8.
	 * @qos_entries: Number of entries in the QoS classification table. This
	 *		table is used to select the TC for ingress traffic. It
	 *		is either an exact match or a TCAM table, depending on
	 *		DPNI_OPT_ HAS_KEY_MASKING bit in OPTIONS field. This
	 *		field is ignored if the DPNI has a single TC. Otherwise,
	 *		a value of 0 defaults to 64. Maximum supported value
	 *		is 64.
	 */
	uint32_t options;
	uint16_t fs_entries;
	uint8_t  vlan_filter_entries;
	uint8_t  mac_filter_entries;
	uint8_t  num_queues;
	uint8_t  num_tcs;
	uint8_t  qos_entries;
};

int dpni_create(struct fsl_mc_io *mc_io,
		uint16_t dprc_token,
		uint32_t cmd_flags,
		const struct dpni_cfg *cfg,
		uint32_t *obj_id);

int dpni_destroy(struct fsl_mc_io *mc_io,
		 uint16_t dprc_token,
		 uint32_t cmd_flags,
		 uint32_t object_id);

/**
 * struct dpni_pools_cfg - Structure representing buffer pools configuration
 * @num_dpbp:	Number of DPBPs
 * @pools:	Array of buffer pools parameters; The number of valid entries
 *		must match 'num_dpbp' value
 */
struct dpni_pools_cfg {
	uint8_t num_dpbp;
	/**
	 * struct pools - Buffer pools parameters
	 * @dpbp_id: DPBP object ID
	 * @priority: priority mask that indicates TC's used with this buffer.
	 * I set to 0x00 MC will assume value 0xff.
	 * @buffer_size: Buffer size
	 * @backup_pool: Backup pool
	 */
	struct {
		int		dpbp_id;
		uint8_t		priority_mask;
		uint16_t	buffer_size;
		int		backup_pool;
	} pools[DPNI_MAX_DPBP];
};

int dpni_set_pools(struct fsl_mc_io *mc_io,
		   uint32_t cmd_flags,
		   uint16_t token,
		   const struct dpni_pools_cfg *cfg);

int dpni_enable(struct fsl_mc_io *mc_io,
		uint32_t cmd_flags,
		uint16_t token);

int dpni_disable(struct fsl_mc_io *mc_io,
		 uint32_t cmd_flags,
		 uint16_t token);

int dpni_is_enabled(struct fsl_mc_io *mc_io,
		    uint32_t cmd_flags,
		    uint16_t token,
		    int *en);

int dpni_reset(struct fsl_mc_io *mc_io,
	       uint32_t cmd_flags,
	       uint16_t token);

/**
 * DPNI IRQ Index and Events
 */

/**
 * IRQ index
 */
#define DPNI_IRQ_INDEX				0
/**
 * IRQ event - indicates a change in link state
 */
#define DPNI_IRQ_EVENT_LINK_CHANGED		0x00000001

int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			uint8_t irq_index,
			uint8_t en);

int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			uint8_t irq_index,
			uint8_t *en);

int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
		      uint32_t cmd_flags,
		      uint16_t token,
		      uint8_t irq_index,
		      uint32_t mask);

int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
		      uint32_t cmd_flags,
		      uint16_t token,
		      uint8_t irq_index,
		      uint32_t *mask);

int dpni_get_irq_status(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			uint8_t irq_index,
			uint32_t *status);

int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
			  uint32_t cmd_flags,
			  uint16_t token,
			  uint8_t irq_index,
			  uint32_t status);

/**
 * struct dpni_attr - Structure representing DPNI attributes
 * @options: Any combination of the following options:
 *		DPNI_OPT_TX_FRM_RELEASE
 *		DPNI_OPT_NO_MAC_FILTER
 *		DPNI_OPT_HAS_POLICING
 *		DPNI_OPT_SHARED_CONGESTION
 *		DPNI_OPT_HAS_KEY_MASKING
 *		DPNI_OPT_NO_FS
 * @num_queues: Number of Tx and Rx queues used for traffic distribution.
 * @num_rx_tcs: Number of RX traffic classes (TCs), reserved for the DPNI.
 * @num_tx_tcs: Number of TX traffic classes (TCs), reserved for the DPNI.
 * @mac_filter_entries: Number of entries in the MAC address filtering
 *		table.
 * @vlan_filter_entries: Number of entries in the VLAN address filtering
 *		table.
 * @qos_entries: Number of entries in the QoS classification table.
 * @fs_entries: Number of entries in the flow steering table.
 * @qos_key_size: Size, in bytes, of the QoS look-up key. Defining a key larger
 *			than this when adding QoS entries will result
 *			in an error.
 * @fs_key_size: Size, in bytes, of the flow steering look-up key. Defining a
 *			key larger than this when composing the hash + FS key
 *			will result in an error.
 * @wriop_version: Version of WRIOP HW block.
 *			The 3 version values are stored on 6, 5, 5 bits
 *			respectively.
 *			Values returned:
 *			- 0x400 - WRIOP version 1.0.0, used on LS2080 and
 *			variants,
 *			- 0x421 - WRIOP version 1.1.1, used on LS2088 and
 *			variants,
 *			- 0x422 - WRIOP version 1.1.2, used on LS1088 and
 *			variants.
 */
struct dpni_attr {
	uint32_t options;
	uint8_t  num_queues;
	uint8_t  num_rx_tcs;
	uint8_t  num_tx_tcs;
	uint8_t  mac_filter_entries;
	uint8_t  vlan_filter_entries;
	uint8_t  qos_entries;
	uint16_t fs_entries;
	uint8_t  qos_key_size;
	uint8_t  fs_key_size;
	uint16_t wriop_version;
};

int dpni_get_attributes(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			struct dpni_attr *attr);

/**
 * DPNI errors
 */

/**
 * Extract out of frame header error
 */
#define DPNI_ERROR_EOFHE	0x00020000
/**
 * Frame length error
 */
#define DPNI_ERROR_FLE		0x00002000
/**
 * Frame physical error
 */
#define DPNI_ERROR_FPE		0x00001000
/**
 * Parsing header error
 */
#define DPNI_ERROR_PHE		0x00000020
/**
 * Parser L3 checksum error
 */
#define DPNI_ERROR_L3CE		0x00000004
/**
 * Parser L3 checksum error
 */
#define DPNI_ERROR_L4CE		0x00000001

/**
 * enum dpni_error_action - Defines DPNI behavior for errors
 * @DPNI_ERROR_ACTION_DISCARD: Discard the frame
 * @DPNI_ERROR_ACTION_CONTINUE: Continue with the normal flow
 * @DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE: Send the frame to the error queue
 */
enum dpni_error_action {
	DPNI_ERROR_ACTION_DISCARD = 0,
	DPNI_ERROR_ACTION_CONTINUE = 1,
	DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE = 2
};

/**
 * struct dpni_error_cfg - Structure representing DPNI errors treatment
 * @errors:			Errors mask; use 'DPNI_ERROR__<X>
 * @error_action:		The desired action for the errors mask
 * @set_frame_annotation:	Set to '1' to mark the errors in frame
 *				annotation status (FAS); relevant only
 *				for the non-discard action
 */
struct dpni_error_cfg {
	uint32_t errors;
	enum dpni_error_action error_action;
	int set_frame_annotation;
};

int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
			     uint32_t cmd_flags,
			     uint16_t token,
			     struct dpni_error_cfg *cfg);

/**
 * DPNI buffer layout modification options
 */

/**
 * Select to modify the time-stamp setting
 */
#define DPNI_BUF_LAYOUT_OPT_TIMESTAMP		0x00000001
/**
 * Select to modify the parser-result setting; not applicable for Tx
 */
#define DPNI_BUF_LAYOUT_OPT_PARSER_RESULT	0x00000002
/**
 * Select to modify the frame-status setting
 */
#define DPNI_BUF_LAYOUT_OPT_FRAME_STATUS	0x00000004
/**
 * Select to modify the private-data-size setting
 */
#define DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE	0x00000008
/**
 * Select to modify the data-alignment setting
 */
#define DPNI_BUF_LAYOUT_OPT_DATA_ALIGN		0x00000010
/**
 * Select to modify the data-head-room setting
 */
#define DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM	0x00000020
/**
 * Select to modify the data-tail-room setting
 */
#define DPNI_BUF_LAYOUT_OPT_DATA_TAIL_ROOM	0x00000040

/**
 * struct dpni_buffer_layout - Structure representing DPNI buffer layout
 * @options:		Flags representing the suggested modifications to the
 *			buffer layout;
 *			Use any combination of 'DPNI_BUF_LAYOUT_OPT_<X>' flags
 * @pass_timestamp:	Pass timestamp value
 * @pass_parser_result:	Pass parser results
 * @pass_frame_status:	Pass frame status
 * @private_data_size:	Size kept for private data (in bytes)
 * @data_align:		Data alignment
 * @data_head_room:	Data head room
 * @data_tail_room:	Data tail room
 */
struct dpni_buffer_layout {
	uint32_t options;
	int pass_timestamp;
	int pass_parser_result;
	int pass_frame_status;
	uint16_t private_data_size;
	uint16_t data_align;
	uint16_t data_head_room;
	uint16_t data_tail_room;
};

/**
 * enum dpni_queue_type - Identifies a type of queue targeted by the command
 * @DPNI_QUEUE_RX: Rx queue
 * @DPNI_QUEUE_TX: Tx queue
 * @DPNI_QUEUE_TX_CONFIRM: Tx confirmation queue
 * @DPNI_QUEUE_RX_ERR: Rx error queue
 */
enum dpni_queue_type {
	DPNI_QUEUE_RX,
	DPNI_QUEUE_TX,
	DPNI_QUEUE_TX_CONFIRM,
	DPNI_QUEUE_RX_ERR,
};

int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
			   uint32_t cmd_flags,
			   uint16_t token,
			   enum dpni_queue_type qtype,
			   struct dpni_buffer_layout *layout);

int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
			   uint32_t cmd_flags,
			   uint16_t token,
			   enum dpni_queue_type qtype,
			   const struct dpni_buffer_layout *layout);

/**
 * enum dpni_offload - Identifies a type of offload targeted by the command
 * @DPNI_OFF_RX_L3_CSUM: Rx L3 checksum validation
 * @DPNI_OFF_RX_L4_CSUM: Rx L4 checksum validation
 * @DPNI_OFF_TX_L3_CSUM: Tx L3 checksum generation
 * @DPNI_OFF_TX_L4_CSUM: Tx L4 checksum generation
 * @DPNI_OPT_FLCTYPE_HASH: flow context will be generated by WRIOP for AIOP or
 *			   for CPU
 */
enum dpni_offload {
	DPNI_OFF_RX_L3_CSUM,
	DPNI_OFF_RX_L4_CSUM,
	DPNI_OFF_TX_L3_CSUM,
	DPNI_OFF_TX_L4_CSUM,
	DPNI_FLCTYPE_HASH,
};

int dpni_set_offload(struct fsl_mc_io *mc_io,
		     uint32_t cmd_flags,
		     uint16_t token,
		     enum dpni_offload type,
		     uint32_t config);

int dpni_get_offload(struct fsl_mc_io *mc_io,
		     uint32_t cmd_flags,
		     uint16_t token,
		     enum dpni_offload type,
		     uint32_t *config);

int dpni_get_qdid(struct fsl_mc_io *mc_io,
		  uint32_t cmd_flags,
		  uint16_t token,
		  enum dpni_queue_type qtype,
		  uint16_t *qdid);

int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
			    uint32_t cmd_flags,
			    uint16_t token,
			    uint16_t *data_offset);

#define DPNI_STATISTICS_CNT		7

union dpni_statistics {
	/**
	 * struct page_0 - Page_0 statistics structure
	 * @ingress_all_frames: Ingress frame count
	 * @ingress_all_bytes: Ingress byte count
	 * @ingress_multicast_frames: Ingress multicast frame count
	 * @ingress_multicast_bytes: Ingress multicast byte count
	 * @ingress_broadcast_frames: Ingress broadcast frame count
	 * @ingress_broadcast_bytes: Ingress broadcast byte count
	 */
	struct {
		uint64_t ingress_all_frames;
		uint64_t ingress_all_bytes;
		uint64_t ingress_multicast_frames;
		uint64_t ingress_multicast_bytes;
		uint64_t ingress_broadcast_frames;
		uint64_t ingress_broadcast_bytes;
	} page_0;
	/**
	 * struct page_1 - Page_1 statistics structure
	 * @egress_all_frames: Egress frame count
	 * @egress_all_bytes: Egress byte count
	 * @egress_multicast_frames: Egress multicast frame count
	 * @egress_multicast_bytes: Egress multicast byte count
	 * @egress_broadcast_frames: Egress broadcast frame count
	 * @egress_broadcast_bytes: Egress broadcast byte count
	 */
	struct {
		uint64_t egress_all_frames;
		uint64_t egress_all_bytes;
		uint64_t egress_multicast_frames;
		uint64_t egress_multicast_bytes;
		uint64_t egress_broadcast_frames;
		uint64_t egress_broadcast_bytes;
	} page_1;
	/**
	 * struct page_2 - Page_2 statistics structure
	 * @ingress_filtered_frames: Ingress filtered frame count
	 * @ingress_discarded_frames: Ingress discarded frame count
	 * @ingress_nobuffer_discards: Ingress discarded frame count due to
	 *					lack of buffers
	 * @egress_discarded_frames: Egress discarded frame count
	 * @egress_confirmed_frames: Egress confirmed frame count
	 */
	struct {
		uint64_t ingress_filtered_frames;
		uint64_t ingress_discarded_frames;
		uint64_t ingress_nobuffer_discards;
		uint64_t egress_discarded_frames;
		uint64_t egress_confirmed_frames;
	} page_2;
	/**
	 * struct page_3 - Page_3 statistics structure with values for the
	 *			selected TC
	 * @ceetm_dequeue_bytes: Cumulative count of the number of bytes
	 *			dequeued
	 * @ceetm_dequeue_frames: Cumulative count of the number of frames
	 *			dequeued
	 * @ceetm_reject_bytes: Cumulative count of the number of bytes in all
	 *			frames whose enqueue was rejected
	 * @ceetm_reject_frames: Cumulative count of all frame enqueues rejected
	 */
	struct {
		uint64_t ceetm_dequeue_bytes;
		uint64_t ceetm_dequeue_frames;
		uint64_t ceetm_reject_bytes;
		uint64_t ceetm_reject_frames;
	} page_3;
	/**
	 * struct raw - raw statistics structure, used to index counters
	 */
	struct {
		uint64_t counter[DPNI_STATISTICS_CNT];
	} raw;
};

/**
 * Enable auto-negotiation
 */
#define DPNI_LINK_OPT_AUTONEG		0x0000000000000001ULL
/**
 * Enable half-duplex mode
 */
#define DPNI_LINK_OPT_HALF_DUPLEX	0x0000000000000002ULL
/**
 * Enable pause frames
 */
#define DPNI_LINK_OPT_PAUSE		0x0000000000000004ULL
/**
 * Enable a-symmetric pause frames
 */
#define DPNI_LINK_OPT_ASYM_PAUSE	0x0000000000000008ULL
/**
 * Enable priority flow control pause frames
 */
#define DPNI_LINK_OPT_PFC_PAUSE	0x0000000000000010ULL

/**
 * struct - Structure representing DPNI link configuration
 * @rate: Rate
 * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
 */
struct dpni_link_cfg {
	uint32_t rate;
	uint64_t options;
};

int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
		      uint32_t cmd_flags,
		      uint16_t token,
		      const struct dpni_link_cfg *cfg);

/**
 * struct dpni_link_state - Structure representing DPNI link state
 * @rate:	Rate
 * @options:	Mask of available options; use 'DPNI_LINK_OPT_<X>' values
 * @up:		Link state; '0' for down, '1' for up
 */
struct dpni_link_state {
	uint32_t rate;
	uint64_t options;
	int up;
};

int dpni_get_link_state(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			struct dpni_link_state *state);

int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
			      uint32_t cmd_flags,
			      uint16_t token,
			      uint16_t max_frame_length);

int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
			      uint32_t cmd_flags,
			      uint16_t token,
			      uint16_t *max_frame_length);

int dpni_set_mtu(struct fsl_mc_io *mc_io,
		 uint32_t cmd_flags,
		 uint16_t token,
		 uint16_t mtu);

int dpni_get_mtu(struct fsl_mc_io *mc_io,
		 uint32_t cmd_flags,
		 uint16_t token,
		 uint16_t *mtu);

int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
			       uint32_t cmd_flags,
			       uint16_t token,
			       int en);

int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
			       uint32_t cmd_flags,
			       uint16_t token,
			       int *en);

int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
			     uint32_t cmd_flags,
			     uint16_t token,
			     int en);

int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
			     uint32_t cmd_flags,
			     uint16_t token,
			     int *en);

int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
			      uint32_t cmd_flags,
			      uint16_t token,
			      const uint8_t mac_addr[6]);

int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
			      uint32_t cmd_flags,
			      uint16_t token,
			      uint8_t mac_addr[6]);

int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
		      uint32_t cmd_flags,
		      uint16_t token,
		      const uint8_t mac_addr[6]);

int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
			 uint32_t cmd_flags,
			 uint16_t token,
			 const uint8_t mac_addr[6]);

int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
			   uint32_t cmd_flags,
			   uint16_t token,
			   int unicast,
			   int multicast);

int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
			   uint32_t cmd_flags,
			   uint16_t token,
			   uint8_t mac_addr[6]);

int dpni_enable_vlan_filter(struct fsl_mc_io *mc_io,
			    uint32_t cmd_flags,
			    uint16_t token,
			    int en);

int dpni_add_vlan_id(struct fsl_mc_io *mc_io,
		     uint32_t cmd_flags,
		     uint16_t token,
		     uint16_t vlan_id);

int dpni_remove_vlan_id(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			uint16_t vlan_id);

int dpni_clear_vlan_filters(struct fsl_mc_io *mc_io,
			    uint32_t cmd_flags,
			    uint16_t token);

/**
 * enum dpni_dist_mode - DPNI distribution mode
 * @DPNI_DIST_MODE_NONE: No distribution
 * @DPNI_DIST_MODE_HASH: Use hash distribution; only relevant if
 *		the 'DPNI_OPT_DIST_HASH' option was set at DPNI creation
 * @DPNI_DIST_MODE_FS:  Use explicit flow steering; only relevant if
 *	 the 'DPNI_OPT_DIST_FS' option was set at DPNI creation
 */
enum dpni_dist_mode {
	DPNI_DIST_MODE_NONE = 0,
	DPNI_DIST_MODE_HASH = 1,
	DPNI_DIST_MODE_FS = 2
};

/**
 * enum dpni_fs_miss_action -   DPNI Flow Steering miss action
 * @DPNI_FS_MISS_DROP: In case of no-match, drop the frame
 * @DPNI_FS_MISS_EXPLICIT_FLOWID: In case of no-match, use explicit flow-id
 * @DPNI_FS_MISS_HASH: In case of no-match, distribute using hash
 */
enum dpni_fs_miss_action {
	DPNI_FS_MISS_DROP = 0,
	DPNI_FS_MISS_EXPLICIT_FLOWID = 1,
	DPNI_FS_MISS_HASH = 2
};

/**
 * struct dpni_fs_tbl_cfg - Flow Steering table configuration
 * @miss_action:	Miss action selection
 * @default_flow_id:	Used when 'miss_action = DPNI_FS_MISS_EXPLICIT_FLOWID'
 */
struct dpni_fs_tbl_cfg {
	enum dpni_fs_miss_action miss_action;
	uint16_t default_flow_id;
	char keep_hash_key;
};

/**
 * struct dpni_rx_tc_dist_cfg - Rx traffic class distribution configuration
 * @dist_size: Set the distribution size;
 *	supported values: 1,2,3,4,6,7,8,12,14,16,24,28,32,48,56,64,96,
 *	112,128,192,224,256,384,448,512,768,896,1024
 * @dist_mode: Distribution mode
 * @key_cfg_iova: I/O virtual address of 256 bytes DMA-able memory filled with
 *		the extractions to be used for the distribution key by calling
 *		dpkg_prepare_key_cfg() relevant only when
 *		'dist_mode != DPNI_DIST_MODE_NONE', otherwise it can be '0'
 * @fs_cfg: Flow Steering table configuration; only relevant if
 *		'dist_mode = DPNI_DIST_MODE_FS'
 */
struct dpni_rx_tc_dist_cfg {
	uint16_t dist_size;
	enum dpni_dist_mode dist_mode;
	uint64_t key_cfg_iova;
	struct dpni_fs_tbl_cfg fs_cfg;
};

int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			uint8_t tc_id,
			const struct dpni_rx_tc_dist_cfg *cfg);

/**
 * enum dpni_congestion_unit - DPNI congestion units
 * @DPNI_CONGESTION_UNIT_BYTES: bytes units
 * @DPNI_CONGESTION_UNIT_FRAMES: frames units
 */
enum dpni_congestion_unit {
	DPNI_CONGESTION_UNIT_BYTES = 0,
	DPNI_CONGESTION_UNIT_FRAMES
};


/**
 * enum dpni_dest - DPNI destination types
 * @DPNI_DEST_NONE: Unassigned destination; The queue is set in parked mode and
 *		does not generate FQDAN notifications; user is expected to
 *		dequeue from the queue based on polling or other user-defined
 *		method
 * @DPNI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
 *		notifications to the specified DPIO; user is expected to dequeue
 *		from the queue only after notification is received
 * @DPNI_DEST_DPCON: The queue is set in schedule mode and does not generate
 *		FQDAN notifications, but is connected to the specified DPCON
 *		object; user is expected to dequeue from the DPCON channel
 */
enum dpni_dest {
	DPNI_DEST_NONE = 0,
	DPNI_DEST_DPIO = 1,
	DPNI_DEST_DPCON = 2
};

/**
 * struct dpni_dest_cfg - Structure representing DPNI destination parameters
 * @dest_type: Destination type
 * @dest_id: Either DPIO ID or DPCON ID, depending on the destination type
 * @priority: Priority selection within the DPIO or DPCON channel; valid values
 *		are 0-1 or 0-7, depending on the number of priorities in that
 *		channel; not relevant for 'DPNI_DEST_NONE' option
 */
struct dpni_dest_cfg {
	enum dpni_dest dest_type;
	int dest_id;
	uint8_t priority;
};

/* DPNI congestion options */

/**
 * CSCN message is written to message_iova once entering a
 * congestion state (see 'threshold_entry')
 */
#define DPNI_CONG_OPT_WRITE_MEM_ON_ENTER	0x00000001
/**
 * CSCN message is written to message_iova once exiting a
 * congestion state (see 'threshold_exit')
 */
#define DPNI_CONG_OPT_WRITE_MEM_ON_EXIT		0x00000002
/**
 * CSCN write will attempt to allocate into a cache (coherent write);
 * valid only if 'DPNI_CONG_OPT_WRITE_MEM_<X>' is selected
 */
#define DPNI_CONG_OPT_COHERENT_WRITE		0x00000004
/**
 * if 'dest_cfg.dest_type != DPNI_DEST_NONE' CSCN message is sent to
 * DPIO/DPCON's WQ channel once entering a congestion state
 * (see 'threshold_entry')
 */
#define DPNI_CONG_OPT_NOTIFY_DEST_ON_ENTER	0x00000008
/**
 * if 'dest_cfg.dest_type != DPNI_DEST_NONE' CSCN message is sent to
 * DPIO/DPCON's WQ channel once exiting a congestion state
 * (see 'threshold_exit')
 */
#define DPNI_CONG_OPT_NOTIFY_DEST_ON_EXIT	0x00000010
/**
 * if 'dest_cfg.dest_type != DPNI_DEST_NONE' when the CSCN is written to the
 * sw-portal's DQRR, the DQRI interrupt is asserted immediately (if enabled)
 */
#define DPNI_CONG_OPT_INTR_COALESCING_DISABLED	0x00000020
/**
 * This congestion will trigger flow control or priority flow control. This
 * will have effect only if flow control is enabled with dpni_set_link_cfg()
 */
#define DPNI_CONG_OPT_FLOW_CONTROL	0x00000040

/**
 * struct dpni_congestion_notification_cfg - congestion notification
 *		configuration
 * @units: units type
 * @threshold_entry: above this threshold we enter a congestion state.
 *	set it to '0' to disable it
 * @threshold_exit: below this threshold we exit the congestion state.
 * @message_ctx: The context that will be part of the CSCN message
 * @message_iova: I/O virtual address (must be in DMA-able memory),
 *	must be 16B aligned; valid only if 'DPNI_CONG_OPT_WRITE_MEM_<X>' is
 *	contained in 'options'
 * @dest_cfg: CSCN can be send to either DPIO or DPCON WQ channel
 * @notification_mode: Mask of available options; use 'DPNI_CONG_OPT_<X>' values
 */

struct dpni_congestion_notification_cfg {
	enum dpni_congestion_unit units;
	uint32_t threshold_entry;
	uint32_t threshold_exit;
	uint64_t message_ctx;
	uint64_t message_iova;
	struct dpni_dest_cfg dest_cfg;
	uint16_t notification_mode;
};

int dpni_set_congestion_notification(struct fsl_mc_io *mc_io,
				     uint32_t cmd_flags,
				     uint16_t token,
				     enum dpni_queue_type qtype,
				     uint8_t tc_id,
			const struct dpni_congestion_notification_cfg *cfg);

int dpni_get_congestion_notification(struct fsl_mc_io *mc_io,
				     uint32_t cmd_flags,
				     uint16_t token,
				     enum dpni_queue_type qtype,
				     uint8_t tc_id,
				struct dpni_congestion_notification_cfg *cfg);

/* DPNI FLC stash options */

/**
 * stashes the whole annotation area (up to 192 bytes)
 */
#define DPNI_FLC_STASH_FRAME_ANNOTATION	0x00000001

/**
 * struct dpni_queue - Queue structure
 * @user_context:	User data, presented to the user along with any frames
 *			from this queue. Not relevant for Tx queues.
 */
struct dpni_queue {
	/**
	 * struct destination - Destination structure
	 * @id:	ID of the destination, only relevant if DEST_TYPE is > 0.
	 *			Identifies either a DPIO or a DPCON object.
	 *			Not relevant for Tx queues.
	 * @type:	May be one of the following:
	 *			0 - No destination, queue can be manually
	 *				queried, but will not push traffic or
	 *				notifications to a DPIO;
	 *			1 - The destination is a DPIO. When traffic
	 *				becomes available in the queue a FQDAN
	 *				(FQ data available notification) will be
	 *				generated to selected DPIO;
	 *			2 - The destination is a DPCON. The queue is
	 *				associated with a DPCON object for the
	 *				purpose of scheduling between multiple
	 *				queues. The DPCON may be independently
	 *				configured to generate notifications.
	 *				Not relevant for Tx queues.
	 * @hold_active: Hold active, maintains a queue scheduled for longer
	 *		in a DPIO during dequeue to reduce spread of traffic.
	 *		Only relevant if queues are
	 *		not affined to a single DPIO.
	 */
	struct {
		uint16_t id;
		enum dpni_dest type;
		char hold_active;
		uint8_t priority;
	} destination;
	uint64_t user_context;
	/**
	 * struct flc - FD FLow Context structure
	 * @value: Default FLC value for traffic dequeued from
	 *      this queue.  Please check description of FD
	 *      structure for more information.
	 *      Note that FLC values set using dpni_add_fs_entry,
	 *      if any, take precedence over values per queue.
	 * @stash_control: Boolean, indicates whether the 6 lowest
	 *      - significant bits are used for stash control.
	 *      significant bits are used for stash control.  If set, the 6
	 *      least significant bits in value are interpreted as follows:
	 *      - bits 0-1: indicates the number of 64 byte units of context
	 *      that are stashed.  FLC value is interpreted as a memory address
	 *      in this case, excluding the 6 LS bits.
	 *      - bits 2-3: indicates the number of 64 byte units of frame
	 *      annotation to be stashed.  Annotation is placed at FD[ADDR].
	 *      - bits 4-5: indicates the number of 64 byte units of frame
	 *      data to be stashed.  Frame data is placed at FD[ADDR] +
	 *      FD[OFFSET].
	 *      For more details check the Frame Descriptor section in the
	 *      hardware documentation.
	 */
	struct {
		uint64_t value;
		char stash_control;
	} flc;
};

/**
 * struct dpni_queue_id - Queue identification, used for enqueue commands
 *				or queue control
 * @fqid:	FQID used for enqueueing to and/or configuration of this
 *			specific FQ
 * @qdbin:	Queueing bin, used to enqueue using QDID, DQBIN, QPRI.
 *			Only relevant for Tx queues.
 */
struct dpni_queue_id {
	uint32_t fqid;
	uint16_t qdbin;
};

/**
 * enum dpni_confirmation_mode - Defines DPNI options supported for Tx
 * confirmation
 * @DPNI_CONF_AFFINE: For each Tx queue set associated with a sender there is
 * an affine Tx Confirmation queue
 * @DPNI_CONF_SINGLE: All Tx queues are associated with a single Tx
 * confirmation queue
 * @DPNI_CONF_DISABLE: Tx frames are not confirmed.  This must be associated
 * with proper FD set-up to have buffers release to a Buffer Pool, otherwise
 * buffers will be leaked
 */
enum dpni_confirmation_mode {
	DPNI_CONF_AFFINE,
	DPNI_CONF_SINGLE,
	DPNI_CONF_DISABLE,
};

int dpni_set_tx_confirmation_mode(struct fsl_mc_io *mc_io,
				  uint32_t cmd_flags,
				  uint16_t token,
				  enum dpni_confirmation_mode mode);

int dpni_get_tx_confirmation_mode(struct fsl_mc_io *mc_io,
				  uint32_t cmd_flags,
				  uint16_t token,
				  enum dpni_confirmation_mode *mode);

int dpni_get_api_version(struct fsl_mc_io *mc_io,
			 uint32_t cmd_flags,
			 uint16_t *major_ver,
			 uint16_t *minor_ver);

/**
 * Set User Context
 */
#define DPNI_QUEUE_OPT_USER_CTX		0x00000001

/**
 * Set queue destination configuration
 */
#define DPNI_QUEUE_OPT_DEST		0x00000002

/**
 * Set FD[FLC] configuration for traffic on this queue.  Note that FLC values
 * set with dpni_add_fs_entry, if any, take precedence over values per queue.
 */
#define DPNI_QUEUE_OPT_FLC		0x00000004

/**
 * Set the queue to hold active mode.  This prevents the queue from being
 * rescheduled between DPIOs while it carries traffic and is active on one
 * DPNI.  Can help reduce reordering when servicing one queue on multiple
 * CPUs, but the queue is also less likely to push data to multiple CPUs
 * especially when congested.
 */
#define DPNI_QUEUE_OPT_HOLD_ACTIVE	0x00000008

int dpni_set_queue(struct fsl_mc_io *mc_io,
		   uint32_t cmd_flags,
		   uint16_t token,
		   enum dpni_queue_type qtype,
		   uint8_t tc,
		   uint8_t index,
		   uint8_t options,
		   const struct dpni_queue *queue);

int dpni_get_queue(struct fsl_mc_io *mc_io,
		   uint32_t cmd_flags,
		   uint16_t token,
		   enum dpni_queue_type qtype,
		   uint8_t tc,
		   uint8_t index,
		   struct dpni_queue *queue,
		   struct dpni_queue_id *qid);

int dpni_get_statistics(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			uint8_t page,
			uint8_t param,
			union dpni_statistics *stat);

int dpni_reset_statistics(struct fsl_mc_io *mc_io,
			  uint32_t cmd_flags,
			  uint16_t token);

/**
 * enum dpni_congestion_point - Structure representing congestion point
 * @DPNI_CP_QUEUE:	Set taildrop per queue, identified by QUEUE_TYPE, TC and
 *				QUEUE_INDEX
 * @DPNI_CP_GROUP:	Set taildrop per queue group. Depending on options used
 *				to define the DPNI this can be either per
 *				TC (default) or per interface
 *				(DPNI_OPT_SHARED_CONGESTION set at DPNI create).
 *				QUEUE_INDEX is ignored if this type is used.
 */
enum dpni_congestion_point {
	DPNI_CP_QUEUE,
	DPNI_CP_GROUP,
};

/**
 * struct dpni_taildrop - Structure representing the taildrop
 * @enable:	Indicates whether the taildrop is active or not.
 * @units:	Indicates the unit of THRESHOLD. Queue taildrop only
 *		supports byte units, this field is ignored and
 *		assumed = 0 if CONGESTION_POINT is 0.
 * @threshold:	Threshold value, in units identified by UNITS field. Value 0
 *		cannot be used as a valid taildrop threshold,
 *		THRESHOLD must be > 0 if the taildrop is
 *		enabled.
 * @oal	:	Overhead Accounting Length, a 12-bit, 2's complement value
 *		with range (-2048 to +2047) representing a fixed per-frame
 *		overhead to be added to the actual length of a frame when
 *		performing WRED and tail drop calculations and threshold
 *		comparisons.
 */
struct dpni_taildrop {
	char enable;
	enum dpni_congestion_unit units;
	uint32_t threshold;
	int16_t oal;
};

int dpni_set_taildrop(struct fsl_mc_io *mc_io,
		      uint32_t cmd_flags,
		      uint16_t token,
		      enum dpni_congestion_point cg_point,
		      enum dpni_queue_type q_type,
		      uint8_t tc,
		      uint8_t q_index,
		      struct dpni_taildrop *taildrop);

int dpni_get_taildrop(struct fsl_mc_io *mc_io,
		      uint32_t cmd_flags,
		      uint16_t token,
		      enum dpni_congestion_point cg_point,
		      enum dpni_queue_type q_type,
		      uint8_t tc,
		      uint8_t q_index,
		      struct dpni_taildrop *taildrop);
#endif /* __FSL_DPNI_H */