X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fcrypto%2Fdpaa2_sec%2Fhw%2Fdesc%2Fcommon.h;fp=drivers%2Fcrypto%2Fdpaa2_sec%2Fhw%2Fdesc%2Fcommon.h;h=6b254908484190300a469b99bd46cd82cd66a589;hb=7595afa4d30097c1177b69257118d8ad89a539be;hp=0000000000000000000000000000000000000000;hpb=ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6;p=deb_dpdk.git

diff --git a/drivers/crypto/dpaa2_sec/hw/desc/common.h b/drivers/crypto/dpaa2_sec/hw/desc/common.h
new file mode 100644
index 00000000..6b254908
--- /dev/null
+++ b/drivers/crypto/dpaa2_sec/hw/desc/common.h
@@ -0,0 +1,131 @@
+/*-
+ * 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__ */