/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/*
* Copyright 2013-2016 Freescale Semiconductor Inc.
* Copyright 2017-2018 NXP
*/
#ifndef _DPSECI_H_
#define _DPSECI_H_
/*
* Data Path SEC Interface API
* Contains initialization APIs and runtime control APIs for DPSECI
*/
struct fsl_mc_io;
/**
* General DPSECI macros
*/
/**
* Maximum number of Tx/Rx queues per DPSECI object
*/
#define DPSECI_MAX_QUEUE_NUM 16
/**
* All queues considered; see dpseci_set_rx_queue()
*/
#define DPSECI_ALL_QUEUES (u8)(-1)
int dpseci_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpseci_id,
u16 *token);
int dpseci_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
/**
* Enable the Congestion Group support
*/
#define DPSECI_OPT_HAS_CG 0x000020
/**
* struct dpseci_cfg - Structure representing DPSECI configuration
* @options: Any combination of the following flags:
* DPSECI_OPT_HAS_CG
* @num_tx_queues: num of queues towards the SEC
* @num_rx_queues: num of queues back from the SEC
* @priorities: Priorities for the SEC hardware processing;
* each place in the array is the priority of the tx queue
* towards the SEC;
* valid priorities are configured with values 1-8;
*/
struct dpseci_cfg {
u32 options;
u8 num_tx_queues;
u8 num_rx_queues;
u8 priorities[DPSECI_MAX_QUEUE_NUM];
};
int dpseci_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
int dpseci_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
int dpseci_is_enabled(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
int *en);
/**
* struct dpseci_attr - Structure representing DPSECI attributes
* @id: DPSECI object ID
* @num_tx_queues: number of queues towards the SEC
* @num_rx_queues: number of queues back from the SEC
* @options: any combination of the following flags:
* DPSECI_OPT_HAS_CG
*/
struct dpseci_attr {
int id;
u8 num_tx_queues;
u8 num_rx_queues;
u32 options;
};
int dpseci_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
struct dpseci_attr *attr);
/**
* enum dpseci_dest - DPSECI destination types
* @DPSECI_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
* @DPSECI_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
* @DPSECI_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 dpseci_dest {
DPSECI_DEST_NONE = 0,
DPSECI_DEST_DPIO,
DPSECI_DEST_DPCON
};
/**
* struct dpseci_dest_cfg - Structure representing DPSECI 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 'DPSECI_DEST_NONE' option
*/
struct dpseci_dest_cfg {
enum dpseci_dest dest_type;
int dest_id;
u8 priority;
};
/**
* DPSECI queue modification options
*/
/**
* Select to modify the user's context associated with the queue
*/
#define DPSECI_QUEUE_OPT_USER_CTX 0x00000001
/**
* Select to modify the queue's destination
*/
#define DPSECI_QUEUE_OPT_DEST 0x00000002
/**
* Select to modify the queue's order preservation
*/
#define DPSECI_QUEUE_OPT_ORDER_PRESERVATION 0x00000004
/**
* struct dpseci_rx_queue_cfg - DPSECI RX queue configuration
* @options: Flags representing the suggested modifications to the queue;
* Use any combination of 'DPSECI_QUEUE_OPT_<X>' flags
* @order_preservation_en: order preservation configuration for the rx queue
* valid only if 'DPSECI_QUEUE_OPT_ORDER_PRESERVATION' is contained in 'options'
* @user_ctx: User context value provided in the frame descriptor of each
* dequeued frame; valid only if 'DPSECI_QUEUE_OPT_USER_CTX' is contained
* in 'options'
* @dest_cfg: Queue destination parameters; valid only if
* 'DPSECI_QUEUE_OPT_DEST' is contained in 'options'
*/
struct dpseci_rx_queue_cfg {
u32 options;
int order_preservation_en;
u64 user_ctx;
struct dpseci_dest_cfg dest_cfg;
};
int dpseci_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u8 queue, const struct dpseci_rx_queue_cfg *cfg);
/**
* struct dpseci_rx_queue_attr - Structure representing attributes of Rx queues
* @user_ctx: User context value provided in the frame descriptor of each
* dequeued frame
* @order_preservation_en: Status of the order preservation configuration on the
* queue
* @dest_cfg: Queue destination configuration
* @fqid: Virtual FQID value to be used for dequeue operations
*/
struct dpseci_rx_queue_attr {
u64 user_ctx;
int order_preservation_en;
struct dpseci_dest_cfg dest_cfg;
u32 fqid;
};
int dpseci_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u8 queue, struct dpseci_rx_queue_attr *attr);
/**
* struct dpseci_tx_queue_attr - Structure representing attributes of Tx queues
* @fqid: Virtual FQID to be used for sending frames to SEC hardware
* @priority: SEC hardware processing priority for the queue
*/
struct dpseci_tx_queue_attr {
u32 fqid;
u8 priority;
};
int dpseci_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u8 queue, struct dpseci_tx_queue_attr *attr);
/**
* struct dpseci_sec_attr - Structure representing attributes of the SEC
* hardware accelerator
* @ip_id: ID for SEC
* @major_rev: Major revision number for SEC
* @minor_rev: Minor revision number for SEC
* @era: SEC Era
* @deco_num: The number of copies of the DECO that are implemented in this
* version of SEC
* @zuc_auth_acc_num: The number of copies of ZUCA that are implemented in this
* version of SEC
* @zuc_enc_acc_num: The number of copies of ZUCE that are implemented in this
* version of SEC
* @snow_f8_acc_num: The number of copies of the SNOW-f8 module that are
* implemented in this version of SEC
* @snow_f9_acc_num: The number of copies of the SNOW-f9 module that are
* implemented in this version of SEC
* @crc_acc_num: The number of copies of the CRC module that are implemented in
* this version of SEC
* @pk_acc_num: The number of copies of the Public Key module that are
* implemented in this version of SEC
* @kasumi_acc_num: The number of copies of the Kasumi module that are
* implemented in this version of SEC
* @rng_acc_num: The number of copies of the Random Number Generator that are
* implemented in this version of SEC
* @md_acc_num: The number of copies of the MDHA (Hashing module) that are
* implemented in this version of SEC
* @arc4_acc_num: The number of copies of the ARC4 module that are implemented
* in this version of SEC
* @des_acc_num: The number of copies of the DES module that are implemented in
* this version of SEC
* @aes_acc_num: The number of copies of the AES module that are implemented in
* this version of SEC
* @ccha_acc_num: The number of copies of the ChaCha20 module that are
* implemented in this version of SEC.
* @ptha_acc_num: The number of copies of the Poly1305 module that are
* implemented in this version of SEC.
**/
struct dpseci_sec_attr {
u16 ip_id;
u8 major_rev;
u8 minor_rev;
u8 era;
u8 deco_num;
u8 zuc_auth_acc_num;
u8 zuc_enc_acc_num;
u8 snow_f8_acc_num;
u8 snow_f9_acc_num;
u8 crc_acc_num;
u8 pk_acc_num;
u8 kasumi_acc_num;
u8 rng_acc_num;
u8 md_acc_num;
u8 arc4_acc_num;
u8 des_acc_num;
u8 aes_acc_num;
u8 ccha_acc_num;
u8 ptha_acc_num;
};
int dpseci_get_sec_attr(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
struct dpseci_sec_attr *attr);
int dpseci_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 *major_ver, u16 *minor_ver);
/**
* enum dpseci_congestion_unit - DPSECI congestion units
* @DPSECI_CONGESTION_UNIT_BYTES: bytes units
* @DPSECI_CONGESTION_UNIT_FRAMES: frames units
*/
enum dpseci_congestion_unit {
DPSECI_CONGESTION_UNIT_BYTES = 0,
DPSECI_CONGESTION_UNIT_FRAMES
};
/**
* CSCN message is written to message_iova once entering a
* congestion state (see 'threshold_entry')
*/
#define DPSECI_CGN_MODE_WRITE_MEM_ON_ENTER 0x00000001
/**
* CSCN message is written to message_iova once exiting a
* congestion state (see 'threshold_exit')
*/
#define DPSECI_CGN_MODE_WRITE_MEM_ON_EXIT 0x00000002
/**
* CSCN write will attempt to allocate into a cache (coherent write);
* valid only if 'DPSECI_CGN_MODE_WRITE_MEM_<X>' is selected
*/
#define DPSECI_CGN_MODE_COHERENT_WRITE 0x00000004
/**
* if 'dpseci_dest_cfg.dest_type != DPSECI_DEST_NONE' CSCN message is sent to
* DPIO/DPCON's WQ channel once entering a congestion state
* (see 'threshold_entry')
*/
#define DPSECI_CGN_MODE_NOTIFY_DEST_ON_ENTER 0x00000008
/**
* if 'dpseci_dest_cfg.dest_type != DPSECI_DEST_NONE' CSCN message is sent to
* DPIO/DPCON's WQ channel once exiting a congestion state
* (see 'threshold_exit')
*/
#define DPSECI_CGN_MODE_NOTIFY_DEST_ON_EXIT 0x00000010
/**
* if 'dpseci_dest_cfg.dest_type != DPSECI_DEST_NONE' when the CSCN is written
* to the sw-portal's DQRR, the DQRI interrupt is asserted immediately
* (if enabled)
*/
#define DPSECI_CGN_MODE_INTR_COALESCING_DISABLED 0x00000020
/**
* struct dpseci_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;
* @dest_cfg: CSCN can be send to either DPIO or DPCON WQ channel
* @notification_mode: Mask of available options; use 'DPSECI_CGN_MODE_<X>'
* values
*/
struct dpseci_congestion_notification_cfg {
enum dpseci_congestion_unit units;
u32 threshold_entry;
u32 threshold_exit;
u64 message_ctx;
u64 message_iova;
struct dpseci_dest_cfg dest_cfg;
u16 notification_mode;
};
int dpseci_set_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 token, const struct dpseci_congestion_notification_cfg *cfg);
int dpseci_get_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 token, struct dpseci_congestion_notification_cfg *cfg);
#endif /* _DPSECI_H_ */