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OpenCloudOS-Kernel/drivers/net/ethernet/freescale/dpaa2/dpni.h

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/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/* Copyright 2013-2016 Freescale Semiconductor Inc.
* Copyright 2016 NXP
*/
#ifndef __FSL_DPNI_H
#define __FSL_DPNI_H
#include "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
/**
* All traffic classes considered; see dpni_set_queue()
*/
#define DPNI_ALL_TCS (u8)(-1)
/**
* All flows within traffic class considered; see dpni_set_queue()
*/
#define DPNI_ALL_TC_FLOWS (u16)(-1)
/**
* Generate new flow ID; see dpni_set_queue()
*/
#define DPNI_NEW_FLOW_ID (u16)(-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,
u32 cmd_flags,
int dpni_id,
u16 *token);
int dpni_close(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
/**
* 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
* @pools.dpbp_id: DPBP object ID
* @pools.buffer_size: Buffer size
* @pools.backup_pool: Backup pool
*/
struct dpni_pools_cfg {
u8 num_dpbp;
struct {
int dpbp_id;
u16 buffer_size;
int backup_pool;
} pools[DPNI_MAX_DPBP];
};
int dpni_set_pools(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const struct dpni_pools_cfg *cfg);
int dpni_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
int dpni_disable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
int dpni_is_enabled(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int *en);
int dpni_reset(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 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,
u32 cmd_flags,
u16 token,
u8 irq_index,
u8 en);
int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u8 *en);
int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 mask);
int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 *mask);
int dpni_get_irq_status(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 *status);
int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 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_tcs: Number of 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.
*/
struct dpni_attr {
u32 options;
u8 num_queues;
u8 num_tcs;
u8 mac_filter_entries;
u8 vlan_filter_entries;
u8 qos_entries;
u16 fs_entries;
u8 qos_key_size;
u8 fs_key_size;
u16 wriop_version;
};
int dpni_get_attributes(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 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 {
u32 errors;
enum dpni_error_action error_action;
int set_frame_annotation;
};
int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 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 {
u32 options;
int pass_timestamp;
int pass_parser_result;
int pass_frame_status;
u16 private_data_size;
u16 data_align;
u16 data_head_room;
u16 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,
u32 cmd_flags,
u16 token,
enum dpni_queue_type qtype,
struct dpni_buffer_layout *layout);
int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 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
*/
enum dpni_offload {
DPNI_OFF_RX_L3_CSUM,
DPNI_OFF_RX_L4_CSUM,
DPNI_OFF_TX_L3_CSUM,
DPNI_OFF_TX_L4_CSUM,
};
int dpni_set_offload(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_offload type,
u32 config);
int dpni_get_offload(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_offload type,
u32 *config);
int dpni_get_qdid(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_queue_type qtype,
u16 *qdid);
int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u16 *data_offset);
#define DPNI_STATISTICS_CNT 7
/**
* union dpni_statistics - Union describing the DPNI statistics
* @page_0: Page_0 statistics structure
* @page_0.ingress_all_frames: Ingress frame count
* @page_0.ingress_all_bytes: Ingress byte count
* @page_0.ingress_multicast_frames: Ingress multicast frame count
* @page_0.ingress_multicast_bytes: Ingress multicast byte count
* @page_0.ingress_broadcast_frames: Ingress broadcast frame count
* @page_0.ingress_broadcast_bytes: Ingress broadcast byte count
* @page_1: Page_1 statistics structure
* @page_1.egress_all_frames: Egress frame count
* @page_1.egress_all_bytes: Egress byte count
* @page_1.egress_multicast_frames: Egress multicast frame count
* @page_1.egress_multicast_bytes: Egress multicast byte count
* @page_1.egress_broadcast_frames: Egress broadcast frame count
* @page_1.egress_broadcast_bytes: Egress broadcast byte count
* @page_2: Page_2 statistics structure
* @page_2.ingress_filtered_frames: Ingress filtered frame count
* @page_2.ingress_discarded_frames: Ingress discarded frame count
* @page_2.ingress_nobuffer_discards: Ingress discarded frame count due to
* lack of buffers
* @page_2.egress_discarded_frames: Egress discarded frame count
* @page_2.egress_confirmed_frames: Egress confirmed frame count
* @raw: raw statistics structure, used to index counters
*/
union dpni_statistics {
struct {
u64 ingress_all_frames;
u64 ingress_all_bytes;
u64 ingress_multicast_frames;
u64 ingress_multicast_bytes;
u64 ingress_broadcast_frames;
u64 ingress_broadcast_bytes;
} page_0;
struct {
u64 egress_all_frames;
u64 egress_all_bytes;
u64 egress_multicast_frames;
u64 egress_multicast_bytes;
u64 egress_broadcast_frames;
u64 egress_broadcast_bytes;
} page_1;
struct {
u64 ingress_filtered_frames;
u64 ingress_discarded_frames;
u64 ingress_nobuffer_discards;
u64 egress_discarded_frames;
u64 egress_confirmed_frames;
} page_2;
struct {
u64 counter[DPNI_STATISTICS_CNT];
} raw;
};
int dpni_get_statistics(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 page,
union dpni_statistics *stat);
/**
* 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
/**
* struct - Structure representing DPNI link configuration
* @rate: Rate
* @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
*/
struct dpni_link_cfg {
u32 rate;
u64 options;
};
int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 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 {
u32 rate;
u64 options;
int up;
};
int dpni_get_link_state(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dpni_link_state *state);
int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u16 max_frame_length);
int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u16 *max_frame_length);
int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int en);
int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int *en);
int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int en);
int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int *en);
int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const u8 mac_addr[6]);
int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 mac_addr[6]);
int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
u32 cm_flags,
u16 token,
u8 mac_addr[6]);
int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const u8 mac_addr[6]);
int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const u8 mac_addr[6]);
int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int unicast,
int multicast);
/**
* 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;
u16 default_flow_id;
};
int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg,
u8 *key_cfg_buf);
/**
* 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
* dpni_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 {
u16 dist_size;
enum dpni_dist_mode dist_mode;
u64 key_cfg_iova;
struct dpni_fs_tbl_cfg fs_cfg;
};
int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 tc_id,
const struct dpni_rx_tc_dist_cfg *cfg);
/**
* When used for fs_miss_flow_id in function dpni_set_rx_dist,
* will signal to dpni to drop all unclassified frames
*/
#define DPNI_FS_MISS_DROP ((uint16_t)-1)
/**
* struct dpni_rx_dist_cfg - Rx distribution configuration
* @dist_size: distribution size
* @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
* dpni_prepare_key_cfg(); relevant only when enable!=0 otherwise
* it can be '0'
* @enable: enable/disable the distribution.
* @tc: TC id for which distribution is set
* @fs_miss_flow_id: when packet misses all rules from flow steering table and
* hash is disabled it will be put into this queue id; use
* DPNI_FS_MISS_DROP to drop frames. The value of this field is
* used only when flow steering distribution is enabled and hash
* distribution is disabled
*/
struct dpni_rx_dist_cfg {
u16 dist_size;
u64 key_cfg_iova;
u8 enable;
u8 tc;
u16 fs_miss_flow_id;
};
int dpni_set_rx_fs_dist(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const struct dpni_rx_dist_cfg *cfg);
int dpni_set_rx_hash_dist(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const struct dpni_rx_dist_cfg *cfg);
/**
* 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_queue - Queue structure
* @destination - Destination structure
* @destination.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.
* @destination.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.
* @destination.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.
* @user_context: User data, presented to the user along with any frames
* from this queue. Not relevant for Tx queues.
* @flc: FD FLow Context structure
* @flc.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.
* @flc.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 dpni_queue {
struct {
u16 id;
enum dpni_dest type;
char hold_active;
u8 priority;
} destination;
u64 user_context;
struct {
u64 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 {
u32 fqid;
u16 qdbin;
};
/**
* Set User Context
*/
#define DPNI_QUEUE_OPT_USER_CTX 0x00000001
#define DPNI_QUEUE_OPT_DEST 0x00000002
#define DPNI_QUEUE_OPT_FLC 0x00000004
#define DPNI_QUEUE_OPT_HOLD_ACTIVE 0x00000008
int dpni_set_queue(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_queue_type qtype,
u8 tc,
u8 index,
u8 options,
const struct dpni_queue *queue);
int dpni_get_queue(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_queue_type qtype,
u8 tc,
u8 index,
struct dpni_queue *queue,
struct dpni_queue_id *qid);
/**
* 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_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.
*/
struct dpni_taildrop {
char enable;
enum dpni_congestion_unit units;
u32 threshold;
};
int dpni_set_taildrop(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_congestion_point cg_point,
enum dpni_queue_type q_type,
u8 tc,
u8 q_index,
struct dpni_taildrop *taildrop);
int dpni_get_taildrop(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
enum dpni_congestion_point cg_point,
enum dpni_queue_type q_type,
u8 tc,
u8 q_index,
struct dpni_taildrop *taildrop);
/**
* struct dpni_rule_cfg - Rule configuration for table lookup
* @key_iova: I/O virtual address of the key (must be in DMA-able memory)
* @mask_iova: I/O virtual address of the mask (must be in DMA-able memory)
* @key_size: key and mask size (in bytes)
*/
struct dpni_rule_cfg {
u64 key_iova;
u64 mask_iova;
u8 key_size;
};
/**
* Discard matching traffic. If set, this takes precedence over any other
* configuration and matching traffic is always discarded.
*/
#define DPNI_FS_OPT_DISCARD 0x1
/**
* Set FLC value. If set, flc member of struct dpni_fs_action_cfg is used to
* override the FLC value set per queue.
* For more details check the Frame Descriptor section in the hardware
* documentation.
*/
#define DPNI_FS_OPT_SET_FLC 0x2
/**
* Indicates whether the 6 lowest significant bits of FLC 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].
* This flag is ignored if DPNI_FS_OPT_SET_FLC is not specified.
*/
#define DPNI_FS_OPT_SET_STASH_CONTROL 0x4
/**
* struct dpni_fs_action_cfg - Action configuration for table look-up
* @flc: FLC value for traffic matching this rule. Please check the
* Frame Descriptor section in the hardware documentation for
* more information.
* @flow_id: Identifies the Rx queue used for matching traffic. Supported
* values are in range 0 to num_queue-1.
* @options: Any combination of DPNI_FS_OPT_ values.
*/
struct dpni_fs_action_cfg {
u64 flc;
u16 flow_id;
u16 options;
};
int dpni_add_fs_entry(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 tc_id,
u16 index,
const struct dpni_rule_cfg *cfg,
const struct dpni_fs_action_cfg *action);
int dpni_remove_fs_entry(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 tc_id,
const struct dpni_rule_cfg *cfg);
int dpni_get_api_version(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 *major_ver,
u16 *minor_ver);
#endif /* __FSL_DPNI_H */
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