]> asedeno.scripts.mit.edu Git - linux.git/commitdiff
crypto: caam - add DPAA2-CAAM (DPSECI) backend API
authorHoria Geantă <horia.geanta@nxp.com>
Wed, 12 Sep 2018 08:59:31 +0000 (11:59 +0300)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 21 Sep 2018 05:24:51 +0000 (13:24 +0800)
Add the low-level API that allows to manage DPSECI DPAA2 objects
that sit on the Management Complex (MC) fsl-mc bus.

The API is compatible with MC firmware 10.2.0+.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/caam/dpseci.c [new file with mode: 0644]
drivers/crypto/caam/dpseci.h [new file with mode: 0644]
drivers/crypto/caam/dpseci_cmd.h [new file with mode: 0644]

diff --git a/drivers/crypto/caam/dpseci.c b/drivers/crypto/caam/dpseci.c
new file mode 100644 (file)
index 0000000..8a68531
--- /dev/null
@@ -0,0 +1,426 @@
+// 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_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;
+}
diff --git a/drivers/crypto/caam/dpseci.h b/drivers/crypto/caam/dpseci.h
new file mode 100644 (file)
index 0000000..4550e13
--- /dev/null
@@ -0,0 +1,333 @@
+/* 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_ */
diff --git a/drivers/crypto/caam/dpseci_cmd.h b/drivers/crypto/caam/dpseci_cmd.h
new file mode 100644 (file)
index 0000000..6ab77ea
--- /dev/null
@@ -0,0 +1,149 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2017-2018 NXP
+ */
+
+#ifndef _DPSECI_CMD_H_
+#define _DPSECI_CMD_H_
+
+/* DPSECI Version */
+#define DPSECI_VER_MAJOR                               5
+#define DPSECI_VER_MINOR                               3
+
+#define DPSECI_VER(maj, min)   (((maj) << 16) | (min))
+#define DPSECI_VERSION         DPSECI_VER(DPSECI_VER_MAJOR, DPSECI_VER_MINOR)
+
+/* Command versioning */
+#define DPSECI_CMD_BASE_VERSION                1
+#define DPSECI_CMD_BASE_VERSION_V2     2
+#define DPSECI_CMD_ID_OFFSET           4
+
+#define DPSECI_CMD_V1(id)      (((id) << DPSECI_CMD_ID_OFFSET) | \
+                                DPSECI_CMD_BASE_VERSION)
+
+#define DPSECI_CMD_V2(id)      (((id) << DPSECI_CMD_ID_OFFSET) | \
+                                DPSECI_CMD_BASE_VERSION_V2)
+
+/* Command IDs */
+#define DPSECI_CMDID_CLOSE                             DPSECI_CMD_V1(0x800)
+#define DPSECI_CMDID_OPEN                              DPSECI_CMD_V1(0x809)
+#define DPSECI_CMDID_GET_API_VERSION                   DPSECI_CMD_V1(0xa09)
+
+#define DPSECI_CMDID_ENABLE                            DPSECI_CMD_V1(0x002)
+#define DPSECI_CMDID_DISABLE                           DPSECI_CMD_V1(0x003)
+#define DPSECI_CMDID_GET_ATTR                          DPSECI_CMD_V1(0x004)
+#define DPSECI_CMDID_IS_ENABLED                                DPSECI_CMD_V1(0x006)
+
+#define DPSECI_CMDID_SET_RX_QUEUE                      DPSECI_CMD_V1(0x194)
+#define DPSECI_CMDID_GET_RX_QUEUE                      DPSECI_CMD_V1(0x196)
+#define DPSECI_CMDID_GET_TX_QUEUE                      DPSECI_CMD_V1(0x197)
+#define DPSECI_CMDID_GET_SEC_ATTR                      DPSECI_CMD_V2(0x198)
+#define DPSECI_CMDID_SET_CONGESTION_NOTIFICATION       DPSECI_CMD_V1(0x170)
+#define DPSECI_CMDID_GET_CONGESTION_NOTIFICATION       DPSECI_CMD_V1(0x171)
+
+/* Macros for accessing command fields smaller than 1 byte */
+#define DPSECI_MASK(field)     \
+       GENMASK(DPSECI_##field##_SHIFT + DPSECI_##field##_SIZE - 1,     \
+               DPSECI_##field##_SHIFT)
+
+#define dpseci_set_field(var, field, val)      \
+       ((var) |= (((val) << DPSECI_##field##_SHIFT) & DPSECI_MASK(field)))
+
+#define dpseci_get_field(var, field)   \
+       (((var) & DPSECI_MASK(field)) >> DPSECI_##field##_SHIFT)
+
+struct dpseci_cmd_open {
+       __le32 dpseci_id;
+};
+
+#define DPSECI_ENABLE_SHIFT    0
+#define DPSECI_ENABLE_SIZE     1
+
+struct dpseci_rsp_is_enabled {
+       u8 is_enabled;
+};
+
+struct dpseci_rsp_get_attributes {
+       __le32 id;
+       __le32 pad0;
+       u8 num_tx_queues;
+       u8 num_rx_queues;
+       u8 pad1[6];
+       __le32 options;
+};
+
+#define DPSECI_DEST_TYPE_SHIFT 0
+#define DPSECI_DEST_TYPE_SIZE  4
+
+#define DPSECI_ORDER_PRESERVATION_SHIFT        0
+#define DPSECI_ORDER_PRESERVATION_SIZE 1
+
+struct dpseci_cmd_queue {
+       __le32 dest_id;
+       u8 priority;
+       u8 queue;
+       u8 dest_type;
+       u8 pad;
+       __le64 user_ctx;
+       union {
+               __le32 options;
+               __le32 fqid;
+       };
+       u8 order_preservation_en;
+};
+
+struct dpseci_rsp_get_tx_queue {
+       __le32 pad;
+       __le32 fqid;
+       u8 priority;
+};
+
+struct dpseci_rsp_get_sec_attr {
+       __le16 ip_id;
+       u8 major_rev;
+       u8 minor_rev;
+       u8 era;
+       u8 pad0[3];
+       u8 deco_num;
+       u8 zuc_auth_acc_num;
+       u8 zuc_enc_acc_num;
+       u8 pad1;
+       u8 snow_f8_acc_num;
+       u8 snow_f9_acc_num;
+       u8 crc_acc_num;
+       u8 pad2;
+       u8 pk_acc_num;
+       u8 kasumi_acc_num;
+       u8 rng_acc_num;
+       u8 pad3;
+       u8 md_acc_num;
+       u8 arc4_acc_num;
+       u8 des_acc_num;
+       u8 aes_acc_num;
+       u8 ccha_acc_num;
+       u8 ptha_acc_num;
+};
+
+struct dpseci_rsp_get_api_version {
+       __le16 major;
+       __le16 minor;
+};
+
+#define DPSECI_CGN_DEST_TYPE_SHIFT     0
+#define DPSECI_CGN_DEST_TYPE_SIZE      4
+#define DPSECI_CGN_UNITS_SHIFT         4
+#define DPSECI_CGN_UNITS_SIZE          2
+
+struct dpseci_cmd_congestion_notification {
+       __le32 dest_id;
+       __le16 notification_mode;
+       u8 priority;
+       u8 options;
+       __le64 message_iova;
+       __le64 message_ctx;
+       __le32 threshold_entry;
+       __le32 threshold_exit;
+};
+
+#endif /* _DPSECI_CMD_H_ */