Adding upstream version 6.1.76.upstream/6.1.76upstream

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

1 files changed, 1644 insertions, 0 deletions

diff --git a/drivers/crypto/caam/caamalg_desc.c b/drivers/crypto/caam/caamalg_desc.c
new file mode 100644
index 000000000..7571e1ac9
--- /dev/null
+++ b/drivers/crypto/caam/caamalg_desc.c
@@ -0,0 +1,1644 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Shared descriptors for aead, skcipher algorithms
+ *
+ * Copyright 2016-2019 NXP
+ */
+
+#include "compat.h"
+#include "desc_constr.h"
+#include "caamalg_desc.h"
+
+/*
+ * For aead functions, read payload and write payload,
+ * both of which are specified in req->src and req->dst
+ */
+static inline void aead_append_src_dst(u32 *desc, u32 msg_type)
+{
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH |
+			     KEY_VLF | msg_type | FIFOLD_TYPE_LASTBOTH);
+}
+
+/* Set DK bit in class 1 operation if shared */
+static inline void append_dec_op1(u32 *desc, u32 type)
+{
+	u32 *jump_cmd, *uncond_jump_cmd;
+
+	/* DK bit is valid only for AES */
+	if ((type & OP_ALG_ALGSEL_MASK) != OP_ALG_ALGSEL_AES) {
+		append_operation(desc, type | OP_ALG_AS_INITFINAL |
+				 OP_ALG_DECRYPT);
+		return;
+	}
+
+	jump_cmd = append_jump(desc, JUMP_TEST_ALL | JUMP_COND_SHRD);
+	append_operation(desc, type | OP_ALG_AS_INIT | OP_ALG_DECRYPT);
+	uncond_jump_cmd = append_jump(desc, JUMP_TEST_ALL);
+	set_jump_tgt_here(desc, jump_cmd);
+	append_operation(desc, type | OP_ALG_AS_INIT | OP_ALG_DECRYPT |
+			 OP_ALG_AAI_DK);
+	set_jump_tgt_here(desc, uncond_jump_cmd);
+}
+
+/**
+ * cnstr_shdsc_aead_null_encap - IPSec ESP encapsulation shared descriptor
+ *                               (non-protocol) with no (null) encryption.
+ * @desc: pointer to buffer used for descriptor construction
+ * @adata: pointer to authentication transform definitions.
+ *         A split key is required for SEC Era < 6; the size of the split key
+ *         is specified in this case. Valid algorithm values - one of
+ *         OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed
+ *         with OP_ALG_AAI_HMAC_PRECOMP.
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @era: SEC Era
+ */
+void cnstr_shdsc_aead_null_encap(u32 * const desc, struct alginfo *adata,
+				 unsigned int icvsize, int era)
+{
+	u32 *key_jump_cmd, *read_move_cmd, *write_move_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (era < 6) {
+		if (adata->key_inline)
+			append_key_as_imm(desc, adata->key_virt,
+					  adata->keylen_pad, adata->keylen,
+					  CLASS_2 | KEY_DEST_MDHA_SPLIT |
+					  KEY_ENC);
+		else
+			append_key(desc, adata->key_dma, adata->keylen,
+				   CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC);
+	} else {
+		append_proto_dkp(desc, adata);
+	}
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* assoclen + cryptlen = seqinlen */
+	append_math_sub(desc, REG3, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/* Prepare to read and write cryptlen + assoclen bytes */
+	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+	/*
+	 * MOVE_LEN opcode is not available in all SEC HW revisions,
+	 * thus need to do some magic, i.e. self-patch the descriptor
+	 * buffer.
+	 */
+	read_move_cmd = append_move(desc, MOVE_SRC_DESCBUF |
+				    MOVE_DEST_MATH3 |
+				    (0x6 << MOVE_LEN_SHIFT));
+	write_move_cmd = append_move(desc, MOVE_SRC_MATH3 |
+				     MOVE_DEST_DESCBUF |
+				     MOVE_WAITCOMP |
+				     (0x8 << MOVE_LEN_SHIFT));
+
+	/* Class 2 operation */
+	append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	/* Read and write cryptlen bytes */
+	aead_append_src_dst(desc, FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1);
+
+	set_move_tgt_here(desc, read_move_cmd);
+	set_move_tgt_here(desc, write_move_cmd);
+	append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
+	append_move(desc, MOVE_SRC_INFIFO_CL | MOVE_DEST_OUTFIFO |
+		    MOVE_AUX_LS);
+
+	/* Write ICV */
+	append_seq_store(desc, icvsize, LDST_CLASS_2_CCB |
+			 LDST_SRCDST_BYTE_CONTEXT);
+
+	print_hex_dump_debug("aead null enc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_aead_null_encap);
+
+/**
+ * cnstr_shdsc_aead_null_decap - IPSec ESP decapsulation shared descriptor
+ *                               (non-protocol) with no (null) decryption.
+ * @desc: pointer to buffer used for descriptor construction
+ * @adata: pointer to authentication transform definitions.
+ *         A split key is required for SEC Era < 6; the size of the split key
+ *         is specified in this case. Valid algorithm values - one of
+ *         OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed
+ *         with OP_ALG_AAI_HMAC_PRECOMP.
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @era: SEC Era
+ */
+void cnstr_shdsc_aead_null_decap(u32 * const desc, struct alginfo *adata,
+				 unsigned int icvsize, int era)
+{
+	u32 *key_jump_cmd, *read_move_cmd, *write_move_cmd, *jump_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (era < 6) {
+		if (adata->key_inline)
+			append_key_as_imm(desc, adata->key_virt,
+					  adata->keylen_pad, adata->keylen,
+					  CLASS_2 | KEY_DEST_MDHA_SPLIT |
+					  KEY_ENC);
+		else
+			append_key(desc, adata->key_dma, adata->keylen,
+				   CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC);
+	} else {
+		append_proto_dkp(desc, adata);
+	}
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Class 2 operation */
+	append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+	/* assoclen + cryptlen = seqoutlen */
+	append_math_sub(desc, REG2, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* Prepare to read and write cryptlen + assoclen bytes */
+	append_math_add(desc, VARSEQINLEN, ZERO, REG2, CAAM_CMD_SZ);
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG2, CAAM_CMD_SZ);
+
+	/*
+	 * MOVE_LEN opcode is not available in all SEC HW revisions,
+	 * thus need to do some magic, i.e. self-patch the descriptor
+	 * buffer.
+	 */
+	read_move_cmd = append_move(desc, MOVE_SRC_DESCBUF |
+				    MOVE_DEST_MATH2 |
+				    (0x6 << MOVE_LEN_SHIFT));
+	write_move_cmd = append_move(desc, MOVE_SRC_MATH2 |
+				     MOVE_DEST_DESCBUF |
+				     MOVE_WAITCOMP |
+				     (0x8 << MOVE_LEN_SHIFT));
+
+	/* Read and write cryptlen bytes */
+	aead_append_src_dst(desc, FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1);
+
+	/*
+	 * Insert a NOP here, since we need at least 4 instructions between
+	 * code patching the descriptor buffer and the location being patched.
+	 */
+	jump_cmd = append_jump(desc, JUMP_TEST_ALL);
+	set_jump_tgt_here(desc, jump_cmd);
+
+	set_move_tgt_here(desc, read_move_cmd);
+	set_move_tgt_here(desc, write_move_cmd);
+	append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
+	append_move(desc, MOVE_SRC_INFIFO_CL | MOVE_DEST_OUTFIFO |
+		    MOVE_AUX_LS);
+	append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
+
+	/* Load ICV */
+	append_seq_fifo_load(desc, icvsize, FIFOLD_CLASS_CLASS2 |
+			     FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_ICV);
+
+	print_hex_dump_debug("aead null dec shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_aead_null_decap);
+
+static void init_sh_desc_key_aead(u32 * const desc,
+				  struct alginfo * const cdata,
+				  struct alginfo * const adata,
+				  const bool is_rfc3686, u32 *nonce, int era)
+{
+	u32 *key_jump_cmd;
+	unsigned int enckeylen = cdata->keylen;
+
+	/* Note: Context registers are saved. */
+	init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
+
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+
+	/*
+	 * RFC3686 specific:
+	 *	| key = {AUTH_KEY, ENC_KEY, NONCE}
+	 *	| enckeylen = encryption key size + nonce size
+	 */
+	if (is_rfc3686)
+		enckeylen -= CTR_RFC3686_NONCE_SIZE;
+
+	if (era < 6) {
+		if (adata->key_inline)
+			append_key_as_imm(desc, adata->key_virt,
+					  adata->keylen_pad, adata->keylen,
+					  CLASS_2 | KEY_DEST_MDHA_SPLIT |
+					  KEY_ENC);
+		else
+			append_key(desc, adata->key_dma, adata->keylen,
+				   CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC);
+	} else {
+		append_proto_dkp(desc, adata);
+	}
+
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, enckeylen,
+				  enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, enckeylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+
+	/* Load Counter into CONTEXT1 reg */
+	if (is_rfc3686) {
+		append_load_as_imm(desc, nonce, CTR_RFC3686_NONCE_SIZE,
+				   LDST_CLASS_IND_CCB |
+				   LDST_SRCDST_BYTE_OUTFIFO | LDST_IMM);
+		append_move(desc,
+			    MOVE_SRC_OUTFIFO |
+			    MOVE_DEST_CLASS1CTX |
+			    (16 << MOVE_OFFSET_SHIFT) |
+			    (CTR_RFC3686_NONCE_SIZE << MOVE_LEN_SHIFT));
+	}
+
+	set_jump_tgt_here(desc, key_jump_cmd);
+}
+
+/**
+ * cnstr_shdsc_aead_encap - IPSec ESP encapsulation shared descriptor
+ *                          (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed
+ *         with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128.
+ * @adata: pointer to authentication transform definitions.
+ *         A split key is required for SEC Era < 6; the size of the split key
+ *         is specified in this case. Valid algorithm values - one of
+ *         OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed
+ *         with OP_ALG_AAI_HMAC_PRECOMP.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template
+ * @nonce: pointer to rfc3686 nonce
+ * @ctx1_iv_off: IV offset in CONTEXT1 register
+ * @is_qi: true when called from caam/qi
+ * @era: SEC Era
+ */
+void cnstr_shdsc_aead_encap(u32 * const desc, struct alginfo *cdata,
+			    struct alginfo *adata, unsigned int ivsize,
+			    unsigned int icvsize, const bool is_rfc3686,
+			    u32 *nonce, const u32 ctx1_iv_off, const bool is_qi,
+			    int era)
+{
+	/* Note: Context registers are saved. */
+	init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce, era);
+
+	/* Class 2 operation */
+	append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+				LDST_SRCDST_BYTE_CONTEXT |
+				(ctx1_iv_off << LDST_OFFSET_SHIFT));
+	}
+
+	/* Read and write assoclen bytes */
+	if (is_qi || era < 3) {
+		append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+		append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+	} else {
+		append_math_add(desc, VARSEQINLEN, ZERO, DPOVRD, CAAM_CMD_SZ);
+		append_math_add(desc, VARSEQOUTLEN, ZERO, DPOVRD, CAAM_CMD_SZ);
+	}
+
+	/* Skip assoc data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* read assoc before reading payload */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
+				      FIFOLDST_VLF);
+
+	/* Load Counter into CONTEXT1 reg */
+	if (is_rfc3686)
+		append_load_imm_be32(desc, 1, LDST_IMM | LDST_CLASS_1_CCB |
+				     LDST_SRCDST_BYTE_CONTEXT |
+				     ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+				      LDST_OFFSET_SHIFT));
+
+	/* Class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	/* Read and write cryptlen bytes */
+	append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+	append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+	aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+
+	/* Write ICV */
+	append_seq_store(desc, icvsize, LDST_CLASS_2_CCB |
+			 LDST_SRCDST_BYTE_CONTEXT);
+
+	print_hex_dump_debug("aead enc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_aead_encap);
+
+/**
+ * cnstr_shdsc_aead_decap - IPSec ESP decapsulation shared descriptor
+ *                          (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed
+ *         with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128.
+ * @adata: pointer to authentication transform definitions.
+ *         A split key is required for SEC Era < 6; the size of the split key
+ *         is specified in this case. Valid algorithm values - one of
+ *         OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed
+ *         with OP_ALG_AAI_HMAC_PRECOMP.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @geniv: whether to generate Encrypted Chain IV
+ * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template
+ * @nonce: pointer to rfc3686 nonce
+ * @ctx1_iv_off: IV offset in CONTEXT1 register
+ * @is_qi: true when called from caam/qi
+ * @era: SEC Era
+ */
+void cnstr_shdsc_aead_decap(u32 * const desc, struct alginfo *cdata,
+			    struct alginfo *adata, unsigned int ivsize,
+			    unsigned int icvsize, const bool geniv,
+			    const bool is_rfc3686, u32 *nonce,
+			    const u32 ctx1_iv_off, const bool is_qi, int era)
+{
+	/* Note: Context registers are saved. */
+	init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce, era);
+
+	/* Class 2 operation */
+	append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		if (!geniv)
+			append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+					LDST_SRCDST_BYTE_CONTEXT |
+					(ctx1_iv_off << LDST_OFFSET_SHIFT));
+	}
+
+	/* Read and write assoclen bytes */
+	if (is_qi || era < 3) {
+		append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+		if (geniv)
+			append_math_add_imm_u32(desc, VARSEQOUTLEN, REG3, IMM,
+						ivsize);
+		else
+			append_math_add(desc, VARSEQOUTLEN, ZERO, REG3,
+					CAAM_CMD_SZ);
+	} else {
+		append_math_add(desc, VARSEQINLEN, ZERO, DPOVRD, CAAM_CMD_SZ);
+		if (geniv)
+			append_math_add_imm_u32(desc, VARSEQOUTLEN, DPOVRD, IMM,
+						ivsize);
+		else
+			append_math_add(desc, VARSEQOUTLEN, ZERO, DPOVRD,
+					CAAM_CMD_SZ);
+	}
+
+	/* Skip assoc data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* read assoc before reading payload */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
+			     KEY_VLF);
+
+	if (geniv) {
+		append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+				LDST_SRCDST_BYTE_CONTEXT |
+				(ctx1_iv_off << LDST_OFFSET_SHIFT));
+		append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO |
+			    (ctx1_iv_off << MOVE_OFFSET_SHIFT) | ivsize);
+	}
+
+	/* Load Counter into CONTEXT1 reg */
+	if (is_rfc3686)
+		append_load_imm_be32(desc, 1, LDST_IMM | LDST_CLASS_1_CCB |
+				     LDST_SRCDST_BYTE_CONTEXT |
+				     ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+				      LDST_OFFSET_SHIFT));
+
+	/* Choose operation */
+	if (ctx1_iv_off)
+		append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+				 OP_ALG_DECRYPT);
+	else
+		append_dec_op1(desc, cdata->algtype);
+
+	/* Read and write cryptlen bytes */
+	append_math_add(desc, VARSEQINLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+	append_math_add(desc, VARSEQOUTLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+	aead_append_src_dst(desc, FIFOLD_TYPE_MSG);
+
+	/* Load ICV */
+	append_seq_fifo_load(desc, icvsize, FIFOLD_CLASS_CLASS2 |
+			     FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_ICV);
+
+	print_hex_dump_debug("aead dec shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_aead_decap);
+
+/**
+ * cnstr_shdsc_aead_givencap - IPSec ESP encapsulation shared descriptor
+ *                             (non-protocol) with HW-generated initialization
+ *                             vector.
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed
+ *         with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128.
+ * @adata: pointer to authentication transform definitions.
+ *         A split key is required for SEC Era < 6; the size of the split key
+ *         is specified in this case. Valid algorithm values - one of
+ *         OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed
+ *         with OP_ALG_AAI_HMAC_PRECOMP.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template
+ * @nonce: pointer to rfc3686 nonce
+ * @ctx1_iv_off: IV offset in CONTEXT1 register
+ * @is_qi: true when called from caam/qi
+ * @era: SEC Era
+ */
+void cnstr_shdsc_aead_givencap(u32 * const desc, struct alginfo *cdata,
+			       struct alginfo *adata, unsigned int ivsize,
+			       unsigned int icvsize, const bool is_rfc3686,
+			       u32 *nonce, const u32 ctx1_iv_off,
+			       const bool is_qi, int era)
+{
+	u32 geniv, moveiv;
+	u32 *wait_cmd;
+
+	/* Note: Context registers are saved. */
+	init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce, era);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+	}
+
+	if (is_rfc3686) {
+		if (is_qi)
+			append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+					LDST_SRCDST_BYTE_CONTEXT |
+					(ctx1_iv_off << LDST_OFFSET_SHIFT));
+
+		goto copy_iv;
+	}
+
+	/* Generate IV */
+	geniv = NFIFOENTRY_STYPE_PAD | NFIFOENTRY_DEST_DECO |
+		NFIFOENTRY_DTYPE_MSG | NFIFOENTRY_LC1 |
+		NFIFOENTRY_PTYPE_RND | (ivsize << NFIFOENTRY_DLEN_SHIFT);
+	append_load_imm_u32(desc, geniv, LDST_CLASS_IND_CCB |
+			    LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
+	append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
+	append_move(desc, MOVE_WAITCOMP |
+		    MOVE_SRC_INFIFO | MOVE_DEST_CLASS1CTX |
+		    (ctx1_iv_off << MOVE_OFFSET_SHIFT) |
+		    (ivsize << MOVE_LEN_SHIFT));
+	append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
+
+copy_iv:
+	/* Copy IV to class 1 context */
+	append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_OUTFIFO |
+		    (ctx1_iv_off << MOVE_OFFSET_SHIFT) |
+		    (ivsize << MOVE_LEN_SHIFT));
+
+	/* Return to encryption */
+	append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	/* Read and write assoclen bytes */
+	if (is_qi || era < 3) {
+		append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+		append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+	} else {
+		append_math_add(desc, VARSEQINLEN, ZERO, DPOVRD, CAAM_CMD_SZ);
+		append_math_add(desc, VARSEQOUTLEN, ZERO, DPOVRD, CAAM_CMD_SZ);
+	}
+
+	/* Skip assoc data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* read assoc before reading payload */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
+			     KEY_VLF);
+
+	/* Copy iv from outfifo to class 2 fifo */
+	moveiv = NFIFOENTRY_STYPE_OFIFO | NFIFOENTRY_DEST_CLASS2 |
+		 NFIFOENTRY_DTYPE_MSG | (ivsize << NFIFOENTRY_DLEN_SHIFT);
+	append_load_imm_u32(desc, moveiv, LDST_CLASS_IND_CCB |
+			    LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
+	append_load_imm_u32(desc, ivsize, LDST_CLASS_2_CCB |
+			    LDST_SRCDST_WORD_DATASZ_REG | LDST_IMM);
+
+	/* Load Counter into CONTEXT1 reg */
+	if (is_rfc3686)
+		append_load_imm_be32(desc, 1, LDST_IMM | LDST_CLASS_1_CCB |
+				     LDST_SRCDST_BYTE_CONTEXT |
+				     ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+				      LDST_OFFSET_SHIFT));
+
+	/* Class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	/* Will write ivsize + cryptlen */
+	append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/* Not need to reload iv */
+	append_seq_fifo_load(desc, ivsize,
+			     FIFOLD_CLASS_SKIP);
+
+	/* Will read cryptlen */
+	append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/*
+	 * Wait for IV transfer (ofifo -> class2) to finish before starting
+	 * ciphertext transfer (ofifo -> external memory).
+	 */
+	wait_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL | JUMP_COND_NIFP);
+	set_jump_tgt_here(desc, wait_cmd);
+
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | KEY_VLF |
+			     FIFOLD_TYPE_MSG1OUT2 | FIFOLD_TYPE_LASTBOTH);
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
+
+	/* Write ICV */
+	append_seq_store(desc, icvsize, LDST_CLASS_2_CCB |
+			 LDST_SRCDST_BYTE_CONTEXT);
+
+	print_hex_dump_debug("aead givenc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_aead_givencap);
+
+/**
+ * cnstr_shdsc_gcm_encap - gcm encapsulation shared descriptor
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_GCM.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_qi: true when called from caam/qi
+ */
+void cnstr_shdsc_gcm_encap(u32 * const desc, struct alginfo *cdata,
+			   unsigned int ivsize, unsigned int icvsize,
+			   const bool is_qi)
+{
+	u32 *key_jump_cmd, *zero_payload_jump_cmd, *zero_assoc_jump_cmd1,
+	    *zero_assoc_jump_cmd2;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* skip key loading if they are loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+				  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, cdata->keylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		append_math_sub_imm_u32(desc, VARSEQOUTLEN, SEQINLEN, IMM,
+					ivsize);
+	} else {
+		append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG0,
+				CAAM_CMD_SZ);
+	}
+
+	/* if assoclen + cryptlen is ZERO, skip to ICV write */
+	zero_assoc_jump_cmd2 = append_jump(desc, JUMP_TEST_ALL |
+						 JUMP_COND_MATH_Z);
+
+	if (is_qi)
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+
+	/* if assoclen is ZERO, skip reading the assoc data */
+	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+	zero_assoc_jump_cmd1 = append_jump(desc, JUMP_TEST_ALL |
+					   JUMP_COND_MATH_Z);
+
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+	/* skip assoc data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* cryptlen = seqinlen - assoclen */
+	append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG3, CAAM_CMD_SZ);
+
+	/* if cryptlen is ZERO jump to zero-payload commands */
+	zero_payload_jump_cmd = append_jump(desc, JUMP_TEST_ALL |
+					    JUMP_COND_MATH_Z);
+
+	/* read assoc data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+	set_jump_tgt_here(desc, zero_assoc_jump_cmd1);
+
+	append_math_sub(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/* write encrypted data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+	/* read payload data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1);
+
+	/* jump to ICV writing */
+	if (is_qi)
+		append_jump(desc, JUMP_TEST_ALL | 4);
+	else
+		append_jump(desc, JUMP_TEST_ALL | 2);
+
+	/* zero-payload commands */
+	set_jump_tgt_here(desc, zero_payload_jump_cmd);
+
+	/* read assoc data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_LAST1);
+	if (is_qi)
+		/* jump to ICV writing */
+		append_jump(desc, JUMP_TEST_ALL | 2);
+
+	/* There is no input data */
+	set_jump_tgt_here(desc, zero_assoc_jump_cmd2);
+
+	if (is_qi)
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1 |
+				     FIFOLD_TYPE_LAST1);
+
+	/* write ICV */
+	append_seq_store(desc, icvsize, LDST_CLASS_1_CCB |
+			 LDST_SRCDST_BYTE_CONTEXT);
+
+	print_hex_dump_debug("gcm enc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_gcm_encap);
+
+/**
+ * cnstr_shdsc_gcm_decap - gcm decapsulation shared descriptor
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_GCM.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_qi: true when called from caam/qi
+ */
+void cnstr_shdsc_gcm_decap(u32 * const desc, struct alginfo *cdata,
+			   unsigned int ivsize, unsigned int icvsize,
+			   const bool is_qi)
+{
+	u32 *key_jump_cmd, *zero_payload_jump_cmd, *zero_assoc_jump_cmd1;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* skip key loading if they are loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL |
+				   JUMP_TEST_ALL | JUMP_COND_SHRD);
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+				  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, cdata->keylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+	}
+
+	/* if assoclen is ZERO, skip reading the assoc data */
+	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+	zero_assoc_jump_cmd1 = append_jump(desc, JUMP_TEST_ALL |
+						 JUMP_COND_MATH_Z);
+
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+	/* skip assoc data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* read assoc data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+
+	set_jump_tgt_here(desc, zero_assoc_jump_cmd1);
+
+	/* cryptlen = seqoutlen - assoclen */
+	append_math_sub(desc, VARSEQINLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* jump to zero-payload command if cryptlen is zero */
+	zero_payload_jump_cmd = append_jump(desc, JUMP_TEST_ALL |
+					    JUMP_COND_MATH_Z);
+
+	append_math_sub(desc, VARSEQOUTLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* store encrypted data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+	/* read payload data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1);
+
+	/* zero-payload command */
+	set_jump_tgt_here(desc, zero_payload_jump_cmd);
+
+	/* read ICV */
+	append_seq_fifo_load(desc, icvsize, FIFOLD_CLASS_CLASS1 |
+			     FIFOLD_TYPE_ICV | FIFOLD_TYPE_LAST1);
+
+	print_hex_dump_debug("gcm dec shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_gcm_decap);
+
+/**
+ * cnstr_shdsc_rfc4106_encap - IPSec ESP gcm encapsulation shared descriptor
+ *                             (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_GCM.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_qi: true when called from caam/qi
+ *
+ * Input sequence: AAD | PTXT
+ * Output sequence: AAD | CTXT | ICV
+ * AAD length (assoclen), which includes the IV length, is available in Math3.
+ */
+void cnstr_shdsc_rfc4106_encap(u32 * const desc, struct alginfo *cdata,
+			       unsigned int ivsize, unsigned int icvsize,
+			       const bool is_qi)
+{
+	u32 *key_jump_cmd, *zero_cryptlen_jump_cmd, *skip_instructions;
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* Skip key loading if it is loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+				  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, cdata->keylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		/* Read salt and IV */
+		append_fifo_load_as_imm(desc, (void *)(cdata->key_virt +
+					cdata->keylen), 4, FIFOLD_CLASS_CLASS1 |
+					FIFOLD_TYPE_IV);
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+	}
+
+	append_math_sub_imm_u32(desc, VARSEQINLEN, REG3, IMM, ivsize);
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+	/* Skip AAD */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* Read cryptlen and set this value into VARSEQOUTLEN */
+	append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG3, CAAM_CMD_SZ);
+
+	/* If cryptlen is ZERO jump to AAD command */
+	zero_cryptlen_jump_cmd = append_jump(desc, JUMP_TEST_ALL |
+					    JUMP_COND_MATH_Z);
+
+	/* Read AAD data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+
+	/* Workaround for erratum A-005473 (simultaneous SEQ FIFO skips) */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA);
+
+	/* Skip IV */
+	append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_SKIP);
+	append_math_add(desc, VARSEQINLEN, VARSEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* Write encrypted data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+	/* Read payload data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1);
+
+	/* Jump instructions to avoid double reading of AAD */
+	skip_instructions = append_jump(desc, JUMP_TEST_ALL);
+
+	/* There is no input data, cryptlen = 0 */
+	set_jump_tgt_here(desc, zero_cryptlen_jump_cmd);
+
+	/* Read AAD */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_LAST1);
+
+	set_jump_tgt_here(desc, skip_instructions);
+
+	/* Write ICV */
+	append_seq_store(desc, icvsize, LDST_CLASS_1_CCB |
+			 LDST_SRCDST_BYTE_CONTEXT);
+
+	print_hex_dump_debug("rfc4106 enc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_rfc4106_encap);
+
+/**
+ * cnstr_shdsc_rfc4106_decap - IPSec ESP gcm decapsulation shared descriptor
+ *                             (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_GCM.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_qi: true when called from caam/qi
+ */
+void cnstr_shdsc_rfc4106_decap(u32 * const desc, struct alginfo *cdata,
+			       unsigned int ivsize, unsigned int icvsize,
+			       const bool is_qi)
+{
+	u32 *key_jump_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* Skip key loading if it is loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+				  cdata->keylen, CLASS_1 |
+				  KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, cdata->keylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				(4 << LDST_OFFSET_SHIFT));
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		/* Read salt and IV */
+		append_fifo_load_as_imm(desc, (void *)(cdata->key_virt +
+					cdata->keylen), 4, FIFOLD_CLASS_CLASS1 |
+					FIFOLD_TYPE_IV);
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+	}
+
+	append_math_sub_imm_u32(desc, VARSEQINLEN, REG3, IMM, ivsize);
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+	/* Read assoc data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+
+	/* Skip IV */
+	append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_SKIP);
+
+	/* Will read cryptlen bytes */
+	append_math_sub(desc, VARSEQINLEN, SEQOUTLEN, REG3, CAAM_CMD_SZ);
+
+	/* Workaround for erratum A-005473 (simultaneous SEQ FIFO skips) */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_MSG);
+
+	/* Skip assoc data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
+
+	/* Will write cryptlen bytes */
+	append_math_sub(desc, VARSEQOUTLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* Store payload data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+	/* Read encrypted data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+			     FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1);
+
+	/* Read ICV */
+	append_seq_fifo_load(desc, icvsize, FIFOLD_CLASS_CLASS1 |
+			     FIFOLD_TYPE_ICV | FIFOLD_TYPE_LAST1);
+
+	print_hex_dump_debug("rfc4106 dec shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_rfc4106_decap);
+
+/**
+ * cnstr_shdsc_rfc4543_encap - IPSec ESP gmac encapsulation shared descriptor
+ *                             (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_GCM.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_qi: true when called from caam/qi
+ */
+void cnstr_shdsc_rfc4543_encap(u32 * const desc, struct alginfo *cdata,
+			       unsigned int ivsize, unsigned int icvsize,
+			       const bool is_qi)
+{
+	u32 *key_jump_cmd, *read_move_cmd, *write_move_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* Skip key loading if it is loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+				  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, cdata->keylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	if (is_qi) {
+		/* assoclen is not needed, skip it */
+		append_seq_fifo_load(desc, 4, FIFOLD_CLASS_SKIP);
+
+		/* Read salt and IV */
+		append_fifo_load_as_imm(desc, (void *)(cdata->key_virt +
+					cdata->keylen), 4, FIFOLD_CLASS_CLASS1 |
+					FIFOLD_TYPE_IV);
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+	}
+
+	/* assoclen + cryptlen = seqinlen */
+	append_math_sub(desc, REG3, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/*
+	 * MOVE_LEN opcode is not available in all SEC HW revisions,
+	 * thus need to do some magic, i.e. self-patch the descriptor
+	 * buffer.
+	 */
+	read_move_cmd = append_move(desc, MOVE_SRC_DESCBUF | MOVE_DEST_MATH3 |
+				    (0x6 << MOVE_LEN_SHIFT));
+	write_move_cmd = append_move(desc, MOVE_SRC_MATH3 | MOVE_DEST_DESCBUF |
+				     (0x8 << MOVE_LEN_SHIFT) | MOVE_WAITCOMP);
+
+	/* Will read assoclen + cryptlen bytes */
+	append_math_sub(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/* Will write assoclen + cryptlen bytes */
+	append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+	/* Read and write assoclen + cryptlen bytes */
+	aead_append_src_dst(desc, FIFOLD_TYPE_AAD);
+
+	set_move_tgt_here(desc, read_move_cmd);
+	set_move_tgt_here(desc, write_move_cmd);
+	append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
+	/* Move payload data to OFIFO */
+	append_move(desc, MOVE_SRC_INFIFO_CL | MOVE_DEST_OUTFIFO);
+
+	/* Write ICV */
+	append_seq_store(desc, icvsize, LDST_CLASS_1_CCB |
+			 LDST_SRCDST_BYTE_CONTEXT);
+
+	print_hex_dump_debug("rfc4543 enc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_rfc4543_encap);
+
+/**
+ * cnstr_shdsc_rfc4543_decap - IPSec ESP gmac decapsulation shared descriptor
+ *                             (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_GCM.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @is_qi: true when called from caam/qi
+ */
+void cnstr_shdsc_rfc4543_decap(u32 * const desc, struct alginfo *cdata,
+			       unsigned int ivsize, unsigned int icvsize,
+			       const bool is_qi)
+{
+	u32 *key_jump_cmd, *read_move_cmd, *write_move_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+	/* Skip key loading if it is loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+	if (cdata->key_inline)
+		append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+				  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+	else
+		append_key(desc, cdata->key_dma, cdata->keylen, CLASS_1 |
+			   KEY_DEST_CLASS_REG);
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Class 1 operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+	if (is_qi) {
+		/* assoclen is not needed, skip it */
+		append_seq_fifo_load(desc, 4, FIFOLD_CLASS_SKIP);
+
+		/* Read salt and IV */
+		append_fifo_load_as_imm(desc, (void *)(cdata->key_virt +
+					cdata->keylen), 4, FIFOLD_CLASS_CLASS1 |
+					FIFOLD_TYPE_IV);
+		append_seq_fifo_load(desc, ivsize, FIFOLD_CLASS_CLASS1 |
+				     FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+	}
+
+	/* assoclen + cryptlen = seqoutlen */
+	append_math_sub(desc, REG3, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/*
+	 * MOVE_LEN opcode is not available in all SEC HW revisions,
+	 * thus need to do some magic, i.e. self-patch the descriptor
+	 * buffer.
+	 */
+	read_move_cmd = append_move(desc, MOVE_SRC_DESCBUF | MOVE_DEST_MATH3 |
+				    (0x6 << MOVE_LEN_SHIFT));
+	write_move_cmd = append_move(desc, MOVE_SRC_MATH3 | MOVE_DEST_DESCBUF |
+				     (0x8 << MOVE_LEN_SHIFT) | MOVE_WAITCOMP);
+
+	/* Will read assoclen + cryptlen bytes */
+	append_math_sub(desc, VARSEQINLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* Will write assoclen + cryptlen bytes */
+	append_math_sub(desc, VARSEQOUTLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+
+	/* Store payload data */
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+	/* In-snoop assoclen + cryptlen data */
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | FIFOLDST_VLF |
+			     FIFOLD_TYPE_AAD | FIFOLD_TYPE_LAST2FLUSH1);
+
+	set_move_tgt_here(desc, read_move_cmd);
+	set_move_tgt_here(desc, write_move_cmd);
+	append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
+	/* Move payload data to OFIFO */
+	append_move(desc, MOVE_SRC_INFIFO_CL | MOVE_DEST_OUTFIFO);
+	append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
+
+	/* Read ICV */
+	append_seq_fifo_load(desc, icvsize, FIFOLD_CLASS_CLASS1 |
+			     FIFOLD_TYPE_ICV | FIFOLD_TYPE_LAST1);
+
+	print_hex_dump_debug("rfc4543 dec shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_rfc4543_decap);
+
+/**
+ * cnstr_shdsc_chachapoly - Chacha20 + Poly1305 generic AEAD (rfc7539) and
+ *                          IPsec ESP (rfc7634, a.k.a. rfc7539esp) shared
+ *                          descriptor (non-protocol).
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_CHACHA20 ANDed with
+ *         OP_ALG_AAI_AEAD.
+ * @adata: pointer to authentication transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_POLY1305 ANDed with
+ *         OP_ALG_AAI_AEAD.
+ * @ivsize: initialization vector size
+ * @icvsize: integrity check value (ICV) size (truncated or full)
+ * @encap: true if encapsulation, false if decapsulation
+ * @is_qi: true when called from caam/qi
+ */
+void cnstr_shdsc_chachapoly(u32 * const desc, struct alginfo *cdata,
+			    struct alginfo *adata, unsigned int ivsize,
+			    unsigned int icvsize, const bool encap,
+			    const bool is_qi)
+{
+	u32 *key_jump_cmd, *wait_cmd;
+	u32 nfifo;
+	const bool is_ipsec = (ivsize != CHACHAPOLY_IV_SIZE);
+
+	/* Note: Context registers are saved. */
+	init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
+
+	/* skip key loading if they are loaded due to sharing */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+
+	append_key_as_imm(desc, cdata->key_virt, cdata->keylen, cdata->keylen,
+			  CLASS_1 | KEY_DEST_CLASS_REG);
+
+	/* For IPsec load the salt from keymat in the context register */
+	if (is_ipsec)
+		append_load_as_imm(desc, cdata->key_virt + cdata->keylen, 4,
+				   LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT |
+				   4 << LDST_OFFSET_SHIFT);
+
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Class 2 and 1 operations: Poly & ChaCha */
+	if (encap) {
+		append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+				 OP_ALG_ENCRYPT);
+		append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+				 OP_ALG_ENCRYPT);
+	} else {
+		append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL |
+				 OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+		append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+				 OP_ALG_DECRYPT);
+	}
+
+	if (is_qi) {
+		u32 *wait_load_cmd;
+		u32 ctx1_iv_off = is_ipsec ? 8 : 4;
+
+		/* REG3 = assoclen */
+		append_seq_load(desc, 4, LDST_CLASS_DECO |
+				LDST_SRCDST_WORD_DECO_MATH3 |
+				4 << LDST_OFFSET_SHIFT);
+
+		wait_load_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+					    JUMP_COND_CALM | JUMP_COND_NCP |
+					    JUMP_COND_NOP | JUMP_COND_NIP |
+					    JUMP_COND_NIFP);
+		set_jump_tgt_here(desc, wait_load_cmd);
+
+		append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+				LDST_SRCDST_BYTE_CONTEXT |
+				ctx1_iv_off << LDST_OFFSET_SHIFT);
+	}
+
+	/*
+	 * MAGIC with NFIFO
+	 * Read associated data from the input and send them to class1 and
+	 * class2 alignment blocks. From class1 send data to output fifo and
+	 * then write it to memory since we don't need to encrypt AD.
+	 */
+	nfifo = NFIFOENTRY_DEST_BOTH | NFIFOENTRY_FC1 | NFIFOENTRY_FC2 |
+		NFIFOENTRY_DTYPE_POLY | NFIFOENTRY_BND;
+	append_load_imm_u32(desc, nfifo, LDST_CLASS_IND_CCB |
+			    LDST_SRCDST_WORD_INFO_FIFO_SM | LDLEN_MATH3);
+
+	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+	append_seq_fifo_load(desc, 0, FIFOLD_TYPE_NOINFOFIFO |
+			     FIFOLD_CLASS_CLASS1 | LDST_VLF);
+	append_move_len(desc, MOVE_AUX_LS | MOVE_SRC_AUX_ABLK |
+			MOVE_DEST_OUTFIFO | MOVELEN_MRSEL_MATH3);
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | LDST_VLF);
+
+	/* IPsec - copy IV at the output */
+	if (is_ipsec)
+		append_seq_fifo_store(desc, ivsize, FIFOST_TYPE_METADATA |
+				      0x2 << 25);
+
+	wait_cmd = append_jump(desc, JUMP_JSL | JUMP_TYPE_LOCAL |
+			       JUMP_COND_NOP | JUMP_TEST_ALL);
+	set_jump_tgt_here(desc, wait_cmd);
+
+	if (encap) {
+		/* Read and write cryptlen bytes */
+		append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+		append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0,
+				CAAM_CMD_SZ);
+		aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+
+		/* Write ICV */
+		append_seq_store(desc, icvsize, LDST_CLASS_2_CCB |
+				 LDST_SRCDST_BYTE_CONTEXT);
+	} else {
+		/* Read and write cryptlen bytes */
+		append_math_add(desc, VARSEQINLEN, SEQOUTLEN, REG0,
+				CAAM_CMD_SZ);
+		append_math_add(desc, VARSEQOUTLEN, SEQOUTLEN, REG0,
+				CAAM_CMD_SZ);
+		aead_append_src_dst(desc, FIFOLD_TYPE_MSG);
+
+		/* Load ICV for verification */
+		append_seq_fifo_load(desc, icvsize, FIFOLD_CLASS_CLASS2 |
+				     FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_ICV);
+	}
+
+	print_hex_dump_debug("chachapoly shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_chachapoly);
+
+/* For skcipher encrypt and decrypt, read from req->src and write to req->dst */
+static inline void skcipher_append_src_dst(u32 *desc)
+{
+	append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+	append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 |
+			     KEY_VLF | FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1);
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
+}
+
+/**
+ * cnstr_shdsc_skcipher_encap - skcipher encapsulation shared descriptor
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed
+ *         with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128
+ *                                - OP_ALG_ALGSEL_CHACHA20
+ * @ivsize: initialization vector size
+ * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template
+ * @ctx1_iv_off: IV offset in CONTEXT1 register
+ */
+void cnstr_shdsc_skcipher_encap(u32 * const desc, struct alginfo *cdata,
+				unsigned int ivsize, const bool is_rfc3686,
+				const u32 ctx1_iv_off)
+{
+	u32 *key_jump_cmd;
+	u32 options = cdata->algtype | OP_ALG_AS_INIT | OP_ALG_ENCRYPT;
+	bool is_chacha20 = ((cdata->algtype & OP_ALG_ALGSEL_MASK) ==
+			    OP_ALG_ALGSEL_CHACHA20);
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+
+	/* Load class1 key only */
+	append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+			  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+
+	/* Load nonce into CONTEXT1 reg */
+	if (is_rfc3686) {
+		const u8 *nonce = cdata->key_virt + cdata->keylen;
+
+		append_load_as_imm(desc, nonce, CTR_RFC3686_NONCE_SIZE,
+				   LDST_CLASS_IND_CCB |
+				   LDST_SRCDST_BYTE_OUTFIFO | LDST_IMM);
+		append_move(desc, MOVE_WAITCOMP | MOVE_SRC_OUTFIFO |
+			    MOVE_DEST_CLASS1CTX | (16 << MOVE_OFFSET_SHIFT) |
+			    (CTR_RFC3686_NONCE_SIZE << MOVE_LEN_SHIFT));
+	}
+
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Load IV, if there is one */
+	if (ivsize)
+		append_seq_load(desc, ivsize, LDST_SRCDST_BYTE_CONTEXT |
+				LDST_CLASS_1_CCB | (ctx1_iv_off <<
+				LDST_OFFSET_SHIFT));
+
+	/* Load counter into CONTEXT1 reg */
+	if (is_rfc3686)
+		append_load_imm_be32(desc, 1, LDST_IMM | LDST_CLASS_1_CCB |
+				     LDST_SRCDST_BYTE_CONTEXT |
+				     ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+				      LDST_OFFSET_SHIFT));
+
+	/* Load operation */
+	if (is_chacha20)
+		options |= OP_ALG_AS_FINALIZE;
+	append_operation(desc, options);
+
+	/* Perform operation */
+	skcipher_append_src_dst(desc);
+
+	/* Store IV */
+	if (!is_chacha20 && ivsize)
+		append_seq_store(desc, ivsize, LDST_SRCDST_BYTE_CONTEXT |
+				 LDST_CLASS_1_CCB | (ctx1_iv_off <<
+				 LDST_OFFSET_SHIFT));
+
+	print_hex_dump_debug("skcipher enc shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_skcipher_encap);
+
+/**
+ * cnstr_shdsc_skcipher_decap - skcipher decapsulation shared descriptor
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed
+ *         with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128
+ *                                - OP_ALG_ALGSEL_CHACHA20
+ * @ivsize: initialization vector size
+ * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template
+ * @ctx1_iv_off: IV offset in CONTEXT1 register
+ */
+void cnstr_shdsc_skcipher_decap(u32 * const desc, struct alginfo *cdata,
+				unsigned int ivsize, const bool is_rfc3686,
+				const u32 ctx1_iv_off)
+{
+	u32 *key_jump_cmd;
+	bool is_chacha20 = ((cdata->algtype & OP_ALG_ALGSEL_MASK) ==
+			    OP_ALG_ALGSEL_CHACHA20);
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+
+	/* Load class1 key only */
+	append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+			  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+
+	/* Load nonce into CONTEXT1 reg */
+	if (is_rfc3686) {
+		const u8 *nonce = cdata->key_virt + cdata->keylen;
+
+		append_load_as_imm(desc, nonce, CTR_RFC3686_NONCE_SIZE,
+				   LDST_CLASS_IND_CCB |
+				   LDST_SRCDST_BYTE_OUTFIFO | LDST_IMM);
+		append_move(desc, MOVE_WAITCOMP | MOVE_SRC_OUTFIFO |
+			    MOVE_DEST_CLASS1CTX | (16 << MOVE_OFFSET_SHIFT) |
+			    (CTR_RFC3686_NONCE_SIZE << MOVE_LEN_SHIFT));
+	}
+
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/* Load IV, if there is one */
+	if (ivsize)
+		append_seq_load(desc, ivsize, LDST_SRCDST_BYTE_CONTEXT |
+				LDST_CLASS_1_CCB | (ctx1_iv_off <<
+				LDST_OFFSET_SHIFT));
+
+	/* Load counter into CONTEXT1 reg */
+	if (is_rfc3686)
+		append_load_imm_be32(desc, 1, LDST_IMM | LDST_CLASS_1_CCB |
+				     LDST_SRCDST_BYTE_CONTEXT |
+				     ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+				      LDST_OFFSET_SHIFT));
+
+	/* Choose operation */
+	if (ctx1_iv_off)
+		append_operation(desc, cdata->algtype | OP_ALG_AS_INIT |
+				 OP_ALG_DECRYPT);
+	else
+		append_dec_op1(desc, cdata->algtype);
+
+	/* Perform operation */
+	skcipher_append_src_dst(desc);
+
+	/* Store IV */
+	if (!is_chacha20 && ivsize)
+		append_seq_store(desc, ivsize, LDST_SRCDST_BYTE_CONTEXT |
+				 LDST_CLASS_1_CCB | (ctx1_iv_off <<
+				 LDST_OFFSET_SHIFT));
+
+	print_hex_dump_debug("skcipher dec shdesc@" __stringify(__LINE__)": ",
+			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+			     1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_skcipher_decap);
+
+/**
+ * cnstr_shdsc_xts_skcipher_encap - xts skcipher encapsulation shared descriptor
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_XTS.
+ */
+void cnstr_shdsc_xts_skcipher_encap(u32 * const desc, struct alginfo *cdata)
+{
+	/*
+	 * Set sector size to a big value, practically disabling
+	 * sector size segmentation in xts implementation. We cannot
+	 * take full advantage of this HW feature with existing
+	 * crypto API / dm-crypt SW architecture.
+	 */
+	__be64 sector_size = cpu_to_be64(BIT(15));
+	u32 *key_jump_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+
+	/* Load class1 keys only */
+	append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+			  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+
+	/* Load sector size with index 40 bytes (0x28) */
+	append_load_as_imm(desc, (void *)&sector_size, 8, LDST_CLASS_1_CCB |
+			   LDST_SRCDST_BYTE_CONTEXT |
+			   (0x28 << LDST_OFFSET_SHIFT));
+
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/*
+	 * create sequence for loading the sector index / 16B tweak value
+	 * Lower 8B of IV - sector index / tweak lower half
+	 * Upper 8B of IV - upper half of 16B tweak
+	 */
+	append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			(0x20 << LDST_OFFSET_SHIFT));
+	append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			(0x30 << LDST_OFFSET_SHIFT));
+
+	/* Load operation */
+	append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
+			 OP_ALG_ENCRYPT);
+
+	/* Perform operation */
+	skcipher_append_src_dst(desc);
+
+	/* Store lower 8B and upper 8B of IV */
+	append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			 (0x20 << LDST_OFFSET_SHIFT));
+	append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			 (0x30 << LDST_OFFSET_SHIFT));
+
+	print_hex_dump_debug("xts skcipher enc shdesc@" __stringify(__LINE__)
+			     ": ", DUMP_PREFIX_ADDRESS, 16, 4,
+			     desc, desc_bytes(desc), 1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_xts_skcipher_encap);
+
+/**
+ * cnstr_shdsc_xts_skcipher_decap - xts skcipher decapsulation shared descriptor
+ * @desc: pointer to buffer used for descriptor construction
+ * @cdata: pointer to block cipher transform definitions
+ *         Valid algorithm values - OP_ALG_ALGSEL_AES ANDed with OP_ALG_AAI_XTS.
+ */
+void cnstr_shdsc_xts_skcipher_decap(u32 * const desc, struct alginfo *cdata)
+{
+	/*
+	 * Set sector size to a big value, practically disabling
+	 * sector size segmentation in xts implementation. We cannot
+	 * take full advantage of this HW feature with existing
+	 * crypto API / dm-crypt SW architecture.
+	 */
+	__be64 sector_size = cpu_to_be64(BIT(15));
+	u32 *key_jump_cmd;
+
+	init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
+	/* Skip if already shared */
+	key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+				   JUMP_COND_SHRD);
+
+	/* Load class1 key only */
+	append_key_as_imm(desc, cdata->key_virt, cdata->keylen,
+			  cdata->keylen, CLASS_1 | KEY_DEST_CLASS_REG);
+
+	/* Load sector size with index 40 bytes (0x28) */
+	append_load_as_imm(desc, (void *)&sector_size, 8, LDST_CLASS_1_CCB |
+			   LDST_SRCDST_BYTE_CONTEXT |
+			   (0x28 << LDST_OFFSET_SHIFT));
+
+	set_jump_tgt_here(desc, key_jump_cmd);
+
+	/*
+	 * create sequence for loading the sector index / 16B tweak value
+	 * Lower 8B of IV - sector index / tweak lower half
+	 * Upper 8B of IV - upper half of 16B tweak
+	 */
+	append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			(0x20 << LDST_OFFSET_SHIFT));
+	append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			(0x30 << LDST_OFFSET_SHIFT));
+	/* Load operation */
+	append_dec_op1(desc, cdata->algtype);
+
+	/* Perform operation */
+	skcipher_append_src_dst(desc);
+
+	/* Store lower 8B and upper 8B of IV */
+	append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			 (0x20 << LDST_OFFSET_SHIFT));
+	append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+			 (0x30 << LDST_OFFSET_SHIFT));
+
+	print_hex_dump_debug("xts skcipher dec shdesc@" __stringify(__LINE__)
+			     ": ", DUMP_PREFIX_ADDRESS, 16, 4, desc,
+			     desc_bytes(desc), 1);
+}
+EXPORT_SYMBOL(cnstr_shdsc_xts_skcipher_decap);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FSL CAAM descriptor support");
+MODULE_AUTHOR("Freescale Semiconductor - NMG/STC");