/* * 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_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;
};
/** * 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;
};
/** * 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;
};
/** * 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_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;
};
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