/* 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 0 x000020
/**
* 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_reset(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 0 x00000001
/**
* Select to modify the queue ' s destination
*/
#define DPSECI_QUEUE_OPT_DEST 0 x00000002
/**
* Select to modify the queue ' s order preservation
*/
#define DPSECI_QUEUE_OPT_ORDER_PRESERVATION 0 x00000004
/**
* 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 0 x00000001
/**
* CSCN message is written to message_iova once exiting a
* congestion state ( see ' threshold_exit ' )
*/
#define DPSECI_CGN_MODE_WRITE_MEM_ON_EXIT 0 x00000002
/**
* 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 0 x00000004
/**
* 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 0 x00000008
/**
* 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 0 x00000010
/**
* 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 0 x00000020
/**
* 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 16 B 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_ */
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