crypto: zip - Add ThunderX ZIP driver core

Add a driver for the ZIP engine found on Cavium ThunderX SOCs.
The ZIP engine supports hardware accelerated compression and
decompression. It includes 2 independent ZIP cores and supports:

- DEFLATE compression and decompression (RFC 1951)
- LZS compression and decompression (RFC 2395 and ANSI X3.241-1994)
- ADLER32 and CRC32 checksums for ZLIB (RFC 1950) and GZIP (RFC 1952)

The ZIP engine is presented as a PCI device. It supports DMA and
scatter-gather.

Signed-off-by: Mahipal Challa <Mahipal.Challa@cavium.com>
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 77 insertions, 0 deletions

diff --git a/drivers/crypto/cavium/zip/zip_crypto.h b/drivers/crypto/cavium/zip/zip_crypto.h
new file mode 100644
index 000000000000..2d91b05a94b8
--- /dev/null
+++ b/drivers/crypto/cavium/zip/zip_crypto.h
@@ -0,0 +1,77 @@
+/***********************license start************************************
+ * Copyright (c) 2003-2017 Cavium, Inc.
+ * All rights reserved.
+ *
+ * License: one of 'Cavium License' or 'GNU General Public License Version 2'
+ *
+ * This file is provided under the terms of the Cavium License (see below)
+ * or under the terms of GNU General Public License, Version 2, as
+ * published by the Free Software Foundation. When using or redistributing
+ * this file, you may do so under either license.
+ *
+ * Cavium License:  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 Cavium Inc. nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * This Software, including technical data, may be subject to U.S. export
+ * control laws, including the U.S. Export Administration Act and its
+ * associated regulations, and may be subject to export or import
+ * regulations in other countries.
+ *
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
+ * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
+ * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
+ * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
+ * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
+ * WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
+ * PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
+ * ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
+ * ENTIRE  RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
+ * WITH YOU.
+ ***********************license end**************************************/
+
+#ifndef __ZIP_CRYPTO_H__
+#define __ZIP_CRYPTO_H__
+
+#include <linux/crypto.h>
+#include <crypto/internal/scompress.h>
+#include "common.h"
+
+struct zip_kernel_ctx {
+	struct zip_operation zip_comp;
+	struct zip_operation zip_decomp;
+};
+
+int  zip_alloc_comp_ctx_deflate(struct crypto_tfm *tfm);
+int  zip_alloc_comp_ctx_lzs(struct crypto_tfm *tfm);
+void zip_free_comp_ctx(struct crypto_tfm *tfm);
+int  zip_comp_compress(struct crypto_tfm *tfm,
+		       const u8 *src, unsigned int slen,
+		       u8 *dst, unsigned int *dlen);
+int  zip_comp_decompress(struct crypto_tfm *tfm,
+			 const u8 *src, unsigned int slen,
+			 u8 *dst, unsigned int *dlen);
+
+void *zip_alloc_scomp_ctx_deflate(struct crypto_scomp *tfm);
+void *zip_alloc_scomp_ctx_lzs(struct crypto_scomp *tfm);
+void  zip_free_scomp_ctx(struct crypto_scomp *tfm, void *zip_ctx);
+int   zip_scomp_compress(struct crypto_scomp *tfm,
+			 const u8 *src, unsigned int slen,
+			 u8 *dst, unsigned int *dlen, void *ctx);
+int   zip_scomp_decompress(struct crypto_scomp *tfm,
+			   const u8 *src, unsigned int slen,
+			   u8 *dst, unsigned int *dlen, void *ctx);
+#endif