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Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/caam/dpseci.c | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/drivers/crypto/caam/dpseci.c b/drivers/crypto/caam/dpseci.c new file mode 100644 index 0000000000..039df6c579 --- /dev/null +++ b/drivers/crypto/caam/dpseci.c @@ -0,0 +1,444 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * Copyright 2017-2018 NXP + */ + +#include <linux/fsl/mc.h> +#include "dpseci.h" +#include "dpseci_cmd.h" + +/** + * dpseci_open() - Open a control session for the specified object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @dpseci_id: DPSECI unique ID + * @token: Returned token; use in subsequent API calls + * + * This function can be used to open a control session for an already created + * object; an object may have been declared statically in the DPL + * or created dynamically. + * This function returns a unique authentication token, associated with the + * specific object ID and the specific MC portal; this token must be used in all + * subsequent commands for this specific object. + * + * Return: '0' on success, error code otherwise + */ +int dpseci_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpseci_id, + u16 *token) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_cmd_open *cmd_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_OPEN, + cmd_flags, + 0); + cmd_params = (struct dpseci_cmd_open *)cmd.params; + cmd_params->dpseci_id = cpu_to_le32(dpseci_id); + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + *token = mc_cmd_hdr_read_token(&cmd); + + return 0; +} + +/** + * dpseci_close() - Close the control session of the object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * + * After this function is called, no further operations are allowed on the + * object without opening a new control session. + * + * Return: '0' on success, error code otherwise + */ +int dpseci_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_CLOSE, + cmd_flags, + token); + return mc_send_command(mc_io, &cmd); +} + +/** + * dpseci_enable() - Enable the DPSECI, allow sending and receiving frames + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * + * Return: '0' on success, error code otherwise + */ +int dpseci_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_ENABLE, + cmd_flags, + token); + return mc_send_command(mc_io, &cmd); +} + +/** + * dpseci_disable() - Disable the DPSECI, stop sending and receiving frames + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * + * Return: '0' on success, error code otherwise + */ +int dpseci_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_DISABLE, + cmd_flags, + token); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpseci_reset() - Reset the DPSECI, returns the object to initial state + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * + * Return: '0' on success, error code otherwise + */ +int dpseci_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_RESET, + cmd_flags, + token); + return mc_send_command(mc_io, &cmd); +} + +/** + * dpseci_is_enabled() - Check if the DPSECI is enabled. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @en: Returns '1' if object is enabled; '0' otherwise + * + * Return: '0' on success, error code otherwise + */ +int dpseci_is_enabled(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + int *en) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_rsp_is_enabled *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_IS_ENABLED, + cmd_flags, + token); + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpseci_rsp_is_enabled *)cmd.params; + *en = dpseci_get_field(rsp_params->is_enabled, ENABLE); + + return 0; +} + +/** + * dpseci_get_attributes() - Retrieve DPSECI attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @attr: Returned object's attributes + * + * Return: '0' on success, error code otherwise + */ +int dpseci_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + struct dpseci_attr *attr) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_rsp_get_attributes *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_ATTR, + cmd_flags, + token); + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpseci_rsp_get_attributes *)cmd.params; + attr->id = le32_to_cpu(rsp_params->id); + attr->num_tx_queues = rsp_params->num_tx_queues; + attr->num_rx_queues = rsp_params->num_rx_queues; + attr->options = le32_to_cpu(rsp_params->options); + + return 0; +} + +/** + * dpseci_set_rx_queue() - Set Rx queue configuration + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @queue: Select the queue relative to number of priorities configured at + * DPSECI creation; use DPSECI_ALL_QUEUES to configure all + * Rx queues identically. + * @cfg: Rx queue configuration + * + * Return: '0' on success, error code otherwise + */ +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 fsl_mc_command cmd = { 0 }; + struct dpseci_cmd_queue *cmd_params; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_SET_RX_QUEUE, + cmd_flags, + token); + cmd_params = (struct dpseci_cmd_queue *)cmd.params; + cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id); + cmd_params->priority = cfg->dest_cfg.priority; + cmd_params->queue = queue; + dpseci_set_field(cmd_params->dest_type, DEST_TYPE, + cfg->dest_cfg.dest_type); + cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx); + cmd_params->options = cpu_to_le32(cfg->options); + dpseci_set_field(cmd_params->order_preservation_en, ORDER_PRESERVATION, + cfg->order_preservation_en); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpseci_get_rx_queue() - Retrieve Rx queue attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @queue: Select the queue relative to number of priorities configured at + * DPSECI creation + * @attr: Returned Rx queue attributes + * + * Return: '0' on success, error code otherwise + */ +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 fsl_mc_command cmd = { 0 }; + struct dpseci_cmd_queue *cmd_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_RX_QUEUE, + cmd_flags, + token); + cmd_params = (struct dpseci_cmd_queue *)cmd.params; + cmd_params->queue = queue; + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id); + attr->dest_cfg.priority = cmd_params->priority; + attr->dest_cfg.dest_type = dpseci_get_field(cmd_params->dest_type, + DEST_TYPE); + attr->user_ctx = le64_to_cpu(cmd_params->user_ctx); + attr->fqid = le32_to_cpu(cmd_params->fqid); + attr->order_preservation_en = + dpseci_get_field(cmd_params->order_preservation_en, + ORDER_PRESERVATION); + + return 0; +} + +/** + * dpseci_get_tx_queue() - Retrieve Tx queue attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @queue: Select the queue relative to number of priorities configured at + * DPSECI creation + * @attr: Returned Tx queue attributes + * + * Return: '0' on success, error code otherwise + */ +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 fsl_mc_command cmd = { 0 }; + struct dpseci_cmd_queue *cmd_params; + struct dpseci_rsp_get_tx_queue *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_TX_QUEUE, + cmd_flags, + token); + cmd_params = (struct dpseci_cmd_queue *)cmd.params; + cmd_params->queue = queue; + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpseci_rsp_get_tx_queue *)cmd.params; + attr->fqid = le32_to_cpu(rsp_params->fqid); + attr->priority = rsp_params->priority; + + return 0; +} + +/** + * dpseci_get_sec_attr() - Retrieve SEC accelerator attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @attr: Returned SEC attributes + * + * Return: '0' on success, error code otherwise + */ +int dpseci_get_sec_attr(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + struct dpseci_sec_attr *attr) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_rsp_get_sec_attr *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_SEC_ATTR, + cmd_flags, + token); + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpseci_rsp_get_sec_attr *)cmd.params; + attr->ip_id = le16_to_cpu(rsp_params->ip_id); + attr->major_rev = rsp_params->major_rev; + attr->minor_rev = rsp_params->minor_rev; + attr->era = rsp_params->era; + attr->deco_num = rsp_params->deco_num; + attr->zuc_auth_acc_num = rsp_params->zuc_auth_acc_num; + attr->zuc_enc_acc_num = rsp_params->zuc_enc_acc_num; + attr->snow_f8_acc_num = rsp_params->snow_f8_acc_num; + attr->snow_f9_acc_num = rsp_params->snow_f9_acc_num; + attr->crc_acc_num = rsp_params->crc_acc_num; + attr->pk_acc_num = rsp_params->pk_acc_num; + attr->kasumi_acc_num = rsp_params->kasumi_acc_num; + attr->rng_acc_num = rsp_params->rng_acc_num; + attr->md_acc_num = rsp_params->md_acc_num; + attr->arc4_acc_num = rsp_params->arc4_acc_num; + attr->des_acc_num = rsp_params->des_acc_num; + attr->aes_acc_num = rsp_params->aes_acc_num; + attr->ccha_acc_num = rsp_params->ccha_acc_num; + attr->ptha_acc_num = rsp_params->ptha_acc_num; + + return 0; +} + +/** + * dpseci_get_api_version() - Get Data Path SEC Interface API version + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @major_ver: Major version of data path sec API + * @minor_ver: Minor version of data path sec API + * + * Return: '0' on success, error code otherwise + */ +int dpseci_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 *major_ver, u16 *minor_ver) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_rsp_get_api_version *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_API_VERSION, + cmd_flags, 0); + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpseci_rsp_get_api_version *)cmd.params; + *major_ver = le16_to_cpu(rsp_params->major); + *minor_ver = le16_to_cpu(rsp_params->minor); + + return 0; +} + +/** + * dpseci_set_congestion_notification() - Set congestion group + * notification configuration + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @cfg: congestion notification configuration + * + * Return: '0' on success, error code otherwise + */ +int dpseci_set_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, const struct dpseci_congestion_notification_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_cmd_congestion_notification *cmd_params; + + cmd.header = mc_encode_cmd_header( + DPSECI_CMDID_SET_CONGESTION_NOTIFICATION, + cmd_flags, + token); + cmd_params = (struct dpseci_cmd_congestion_notification *)cmd.params; + cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id); + cmd_params->notification_mode = cpu_to_le16(cfg->notification_mode); + cmd_params->priority = cfg->dest_cfg.priority; + dpseci_set_field(cmd_params->options, CGN_DEST_TYPE, + cfg->dest_cfg.dest_type); + dpseci_set_field(cmd_params->options, CGN_UNITS, cfg->units); + cmd_params->message_iova = cpu_to_le64(cfg->message_iova); + cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx); + cmd_params->threshold_entry = cpu_to_le32(cfg->threshold_entry); + cmd_params->threshold_exit = cpu_to_le32(cfg->threshold_exit); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpseci_get_congestion_notification() - Get congestion group notification + * configuration + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSECI object + * @cfg: congestion notification configuration + * + * Return: '0' on success, error code otherwise + */ +int dpseci_get_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, struct dpseci_congestion_notification_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpseci_cmd_congestion_notification *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header( + DPSECI_CMDID_GET_CONGESTION_NOTIFICATION, + cmd_flags, + token); + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpseci_cmd_congestion_notification *)cmd.params; + cfg->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id); + cfg->notification_mode = le16_to_cpu(rsp_params->notification_mode); + cfg->dest_cfg.priority = rsp_params->priority; + cfg->dest_cfg.dest_type = dpseci_get_field(rsp_params->options, + CGN_DEST_TYPE); + cfg->units = dpseci_get_field(rsp_params->options, CGN_UNITS); + cfg->message_iova = le64_to_cpu(rsp_params->message_iova); + cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx); + cfg->threshold_entry = le32_to_cpu(rsp_params->threshold_entry); + cfg->threshold_exit = le32_to_cpu(rsp_params->threshold_exit); + + return 0; +} |