--- /dev/null
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * BSD LICENSE
+ *
+ * Copyright 2008-2016 Freescale Semiconductor Inc.
+ * Copyright (c) 2016 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __DESC_COMMON_H__
+#define __DESC_COMMON_H__
+
+#include "hw/rta.h"
+
+/**
+ * DOC: Shared Descriptor Constructors - shared structures
+ *
+ * Data structures shared between algorithm, protocol implementations.
+ */
+
+/**
+ * struct alginfo - Container for algorithm details
+ * @algtype: algorithm selector; for valid values, see documentation of the
+ * functions where it is used.
+ * @keylen: length of the provided algorithm key, in bytes
+ * @key: address where algorithm key resides; virtual address if key_type is
+ * RTA_DATA_IMM, physical (bus) address if key_type is RTA_DATA_PTR or
+ * RTA_DATA_IMM_DMA.
+ * @key_enc_flags: key encryption flags; see encrypt_flags parameter of KEY
+ * command for valid values.
+ * @key_type: enum rta_data_type
+ * @algmode: algorithm mode selector; for valid values, see documentation of the
+ * functions where it is used.
+ */
+struct alginfo {
+ uint32_t algtype;
+ uint32_t keylen;
+ uint64_t key;
+ uint32_t key_enc_flags;
+ enum rta_data_type key_type;
+ uint16_t algmode;
+};
+
+#define INLINE_KEY(alginfo) inline_flags(alginfo->key_type)
+
+/**
+ * rta_inline_query() - Provide indications on which data items can be inlined
+ * and which shall be referenced in a shared descriptor.
+ * @sd_base_len: Shared descriptor base length - bytes consumed by the commands,
+ * excluding the data items to be inlined (or corresponding
+ * pointer if an item is not inlined). Each cnstr_* function that
+ * generates descriptors should have a define mentioning
+ * corresponding length.
+ * @jd_len: Maximum length of the job descriptor(s) that will be used
+ * together with the shared descriptor.
+ * @data_len: Array of lengths of the data items trying to be inlined
+ * @inl_mask: 32bit mask with bit x = 1 if data item x can be inlined, 0
+ * otherwise.
+ * @count: Number of data items (size of @data_len array); must be <= 32
+ *
+ * Return: 0 if data can be inlined / referenced, negative value if not. If 0,
+ * check @inl_mask for details.
+ */
+static inline int
+rta_inline_query(unsigned int sd_base_len,
+ unsigned int jd_len,
+ unsigned int *data_len,
+ uint32_t *inl_mask,
+ unsigned int count)
+{
+ int rem_bytes = (int)(CAAM_DESC_BYTES_MAX - sd_base_len - jd_len);
+ unsigned int i;
+
+ *inl_mask = 0;
+ for (i = 0; (i < count) && (rem_bytes > 0); i++) {
+ if (rem_bytes - (int)(data_len[i] +
+ (count - i - 1) * CAAM_PTR_SZ) >= 0) {
+ rem_bytes -= data_len[i];
+ *inl_mask |= (1 << i);
+ } else {
+ rem_bytes -= CAAM_PTR_SZ;
+ }
+ }
+
+ return (rem_bytes >= 0) ? 0 : -1;
+}
+
+/**
+ * struct protcmd - Container for Protocol Operation Command fields
+ * @optype: command type
+ * @protid: protocol Identifier
+ * @protinfo: protocol Information
+ */
+struct protcmd {
+ uint32_t optype;
+ uint32_t protid;
+ uint16_t protinfo;
+};
+
+#endif /* __DESC_COMMON_H__ */
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