Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/drivers/crypto/bcm/spum.h b/drivers/crypto/bcm/spum.h
new file mode 100644
index 000000000..d0a5b5828
--- /dev/null
+++ b/drivers/crypto/bcm/spum.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2016 Broadcom
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation (the "GPL").
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 (GPLv2) for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 (GPLv2) along with this source code.
+ */
+
+/*
+ * This file contains SPU message definitions specific to SPU-M.
+ */
+
+#ifndef _SPUM_H_
+#define _SPUM_H_
+
+#define SPU_CRYPTO_OPERATION_GENERIC	0x1
+
+/* Length of STATUS field in tx and rx packets */
+#define SPU_TX_STATUS_LEN  4
+
+/* SPU-M error codes */
+#define SPU_STATUS_MASK                 0x0000FF00
+#define SPU_STATUS_SUCCESS              0x00000000
+#define SPU_STATUS_INVALID_ICV          0x00000100
+
+#define SPU_STATUS_ERROR_FLAG           0x00020000
+
+/* Request message. MH + EMH + BDESC + BD header */
+#define SPU_REQ_FIXED_LEN 24
+
+/*
+ * Max length of a SPU message header. Used to allocate a buffer where
+ * the SPU message header is constructed. Can be used for either a SPU-M
+ * header or a SPU2 header.
+ * For SPU-M, sum of the following:
+ *    MH - 4 bytes
+ *    EMH - 4
+ *    SCTX - 3 +
+ *      max auth key len - 64
+ *      max cipher key len - 264 (RC4)
+ *      max IV len - 16
+ *    BDESC - 12
+ *    BD header - 4
+ * Total:  371
+ *
+ * For SPU2, FMD_SIZE (32) plus lengths of hash and cipher keys,
+ * hash and cipher IVs. If SPU2 does not support RC4, then
+ */
+#define SPU_HEADER_ALLOC_LEN  (SPU_REQ_FIXED_LEN + MAX_KEY_SIZE + \
+				MAX_KEY_SIZE + MAX_IV_SIZE)
+
+/*
+ * Response message header length. Normally MH, EMH, BD header, but when
+ * BD_SUPPRESS is used for hash requests, there is no BD header.
+ */
+#define SPU_RESP_HDR_LEN 12
+#define SPU_HASH_RESP_HDR_LEN 8
+
+/*
+ * Max value that can be represented in the Payload Length field of the BD
+ * header. This is a 16-bit field.
+ */
+#define SPUM_NS2_MAX_PAYLOAD  (BIT(16) - 1)
+
+/*
+ * NSP SPU is limited to ~9KB because of FA2 FIFO size limitations;
+ * Set MAX_PAYLOAD to 8k to allow for addition of header, digest, etc.
+ * and stay within limitation.
+ */
+
+#define SPUM_NSP_MAX_PAYLOAD	8192
+
+/* Buffer Descriptor Header [BDESC]. SPU in big-endian mode. */
+struct BDESC_HEADER {
+	u16 offset_mac;		/* word 0 [31-16] */
+	u16 length_mac;		/* word 0 [15-0]  */
+	u16 offset_crypto;	/* word 1 [31-16] */
+	u16 length_crypto;	/* word 1 [15-0]  */
+	u16 offset_icv;		/* word 2 [31-16] */
+	u16 offset_iv;		/* word 2 [15-0]  */
+};
+
+/* Buffer Data Header [BD]. SPU in big-endian mode. */
+struct BD_HEADER {
+	u16 size;
+	u16 prev_length;
+};
+
+/* Command Context Header. SPU-M in big endian mode. */
+struct MHEADER {
+	u8 flags;	/* [31:24] */
+	u8 op_code;	/* [23:16] */
+	u16 reserved;	/* [15:0] */
+};
+
+/* MH header flags bits */
+#define MH_SUPDT_PRES   BIT(0)
+#define MH_HASH_PRES    BIT(2)
+#define MH_BD_PRES      BIT(3)
+#define MH_MFM_PRES     BIT(4)
+#define MH_BDESC_PRES   BIT(5)
+#define MH_SCTX_PRES	BIT(7)
+
+/* SCTX word 0 bit offsets and fields masks */
+#define SCTX_SIZE               0x000000FF
+
+/* SCTX word 1 bit shifts and field masks */
+#define  UPDT_OFST              0x000000FF   /* offset of SCTX updateable fld */
+#define  HASH_TYPE              0x00000300   /* hash alg operation type */
+#define  HASH_TYPE_SHIFT                 8
+#define  HASH_MODE              0x00001C00   /* one of spu2_hash_mode */
+#define  HASH_MODE_SHIFT                10
+#define  HASH_ALG               0x0000E000   /* hash algorithm */
+#define  HASH_ALG_SHIFT                 13
+#define  CIPHER_TYPE            0x00030000   /* encryption operation type */
+#define  CIPHER_TYPE_SHIFT              16
+#define  CIPHER_MODE            0x001C0000   /* encryption mode */
+#define  CIPHER_MODE_SHIFT              18
+#define  CIPHER_ALG             0x00E00000   /* encryption algo */
+#define  CIPHER_ALG_SHIFT               21
+#define  ICV_IS_512                BIT(27)
+#define  ICV_IS_512_SHIFT		27
+#define  CIPHER_ORDER               BIT(30)
+#define  CIPHER_ORDER_SHIFT             30
+#define  CIPHER_INBOUND             BIT(31)
+#define  CIPHER_INBOUND_SHIFT           31
+
+/* SCTX word 2 bit shifts and field masks */
+#define  EXP_IV_SIZE                   0x7
+#define  IV_OFFSET                   BIT(3)
+#define  IV_OFFSET_SHIFT                 3
+#define  GEN_IV                      BIT(5)
+#define  GEN_IV_SHIFT                    5
+#define  EXPLICIT_IV                 BIT(6)
+#define  EXPLICIT_IV_SHIFT               6
+#define  SCTX_IV                     BIT(7)
+#define  SCTX_IV_SHIFT                   7
+#define  ICV_SIZE                   0x0F00
+#define  ICV_SIZE_SHIFT                  8
+#define  CHECK_ICV                  BIT(12)
+#define  CHECK_ICV_SHIFT                12
+#define  INSERT_ICV                 BIT(13)
+#define  INSERT_ICV_SHIFT               13
+#define  BD_SUPPRESS                BIT(19)
+#define  BD_SUPPRESS_SHIFT              19
+
+/* Generic Mode Security Context Structure [SCTX] */
+struct SCTX {
+/* word 0: protocol flags */
+	u32 proto_flags;
+
+/* word 1: cipher flags */
+	u32 cipher_flags;
+
+/* word 2: Extended cipher flags */
+	u32 ecf;
+
+};
+
+struct SPUHEADER {
+	struct MHEADER mh;
+	u32 emh;
+	struct SCTX sa;
+};
+
+#endif /* _SPUM_H_ */