caam driver updates for public key cryptography

CAAM driver updates as per public key infrastructure changes in cryptoAPI
RSA, DSA, ECDSA are support as part of Public Key Crypto Operations

Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Change-Id: I3a6e4f71866a5ef157b9ea13e618c4d3d209f558
Reviewed-on: http://git.am.freescale.net:8181/5839
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Geanta Neag Horia Ioan-B05471 <horia.geanta@freescale.com>
Reviewed-by: Rivera Jose-B46482 <German.Rivera@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/9546
Reviewed-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>

1 files changed, 151 insertions, 24 deletions

diff --git a/drivers/crypto/caam/pdb.h b/drivers/crypto/caam/pdb.h
index 3a87c0c..7cf2662 100644
--- a/drivers/crypto/caam/pdb.h
+++ b/drivers/crypto/caam/pdb.h
@@ -373,30 +373,157 @@ struct srtp_decap_pdb {
 
 #define DSA_PDB_N_MASK		0x7f
 
-struct dsa_sign_pdb {
-	u32 sgf_ln; /* Use DSA_PDB_ defintions per above */
-	u8 *q;
-	u8 *r;
-	u8 *g;	/* or Gx,y */
-	u8 *s;
-	u8 *f;
-	u8 *c;
-	u8 *d;
-	u8 *ab; /* ECC only */
-	u8 *u;
-};
+struct dsa_sign_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t sgf_ln; /* Use DSA_PDB_ definitions per above */
+	dma_addr_t q_dma;
+	dma_addr_t r_dma;
+	dma_addr_t g_dma;	/* or Gx,y */
+	dma_addr_t s_dma;
+	dma_addr_t f_dma;
+	dma_addr_t c_dma;
+	dma_addr_t d_dma;
+	uint32_t	op;
+} __packed;
+
+struct dsa_verify_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t sgf_ln;
+	dma_addr_t q_dma;
+	dma_addr_t r_dma;
+	dma_addr_t g_dma;	/* or Gx,y */
+	dma_addr_t w_dma; /* or Wx,y */
+	dma_addr_t f_dma;
+	dma_addr_t c_dma;
+	dma_addr_t d_dma;
+	dma_addr_t tmp_dma; /* temporary data block */
+	uint32_t	op;
+} __packed;
+
+struct ecdsa_sign_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t sgf_ln; /* Use ECDSA_PDB_ definitions per above */
+	dma_addr_t q_dma;
+	dma_addr_t r_dma;
+	dma_addr_t g_dma;	/* or Gx,y */
+	dma_addr_t s_dma;
+	dma_addr_t f_dma;
+	dma_addr_t c_dma;
+	dma_addr_t d_dma;
+	dma_addr_t ab_dma;
+	uint32_t	op;
+} __packed;
+
+struct ecdsa_verify_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t sgf_ln;
+	dma_addr_t q_dma;
+	dma_addr_t r_dma;
+	dma_addr_t g_dma;	/* or Gx,y */
+	dma_addr_t w_dma; /* or Wx,y */
+	dma_addr_t f_dma;
+	dma_addr_t c_dma;
+	dma_addr_t d_dma;
+	dma_addr_t tmp_dma; /* temporary data block */
+	dma_addr_t ab_dma;
+	uint32_t	op;
+} __packed;
+
+/* DSA/ECDSA Protocol Data Blocks */
+#define RSA_PDB_SGF_SHIFT       28
+#define RSA_PDB_MSG_FMT_SHIFT   12
+#define RSA_PDB_E_SHIFT       12
+#define RSA_PDB_E_MASK        (0xFFF << RSA_PDB_E_SHIFT)
+#define RSA_PDB_D_SHIFT       12
+#define RSA_PDB_D_MASK        (0xFFF << RSA_PDB_D_SHIFT)
+#define RSA_PDB_Q_SHIFT       12
+#define RSA_PDB_Q_MASK        (0xFFF << RSA_PDB_Q_SHIFT)
+
+
+#define RSA_PDB_SGF_F		(0x8 << RSA_PDB_SGF_SHIFT)
+#define RSA_PDB_SGF_G		(0x4 << RSA_PDB_SGF_SHIFT)
+#define RSA_PDB_SGF_N		(0x2 << RSA_PDB_SGF_SHIFT)
+#define RSA_PDB_SGF_E		(0x1 << RSA_PDB_SGF_SHIFT)
+
+#define RSA_PRIV_KEY_FRM_1	0
+#define RSA_PRIV_KEY_FRM_2	1
+#define RSA_PRIV_KEY_FRM_3	2
+
+#define RSA_PDB_PVT_FRM1_SGF_SHIFT  28
+#define RSA_PDB_PVT_FRM1_D_SHIFT 10
+
+#define RSA_PDB_PVT_MSG_FMT_SHIFT   12
+#define RSA_PDB_PVT_FRM3_SGF_SHIFT  23
+#define RSA_PDB_PVT_FRM3_Q_SHIFT  12
+
+/* RSA Pub_Key Descriptor */
+struct rsa_pub_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t	sgf_flg;
+	dma_addr_t	f_dma;
+	dma_addr_t	g_dma;
+	dma_addr_t	n_dma;
+	dma_addr_t	e_dma;
+	uint32_t	msg_len;
+	uint32_t	op;
+} __packed;
 
-struct dsa_verify_pdb {
-	u32 sgf_ln;
-	u8 *q;
-	u8 *r;
-	u8 *g;	/* or Gx,y */
-	u8 *w; /* or Wx,y */
-	u8 *f;
-	u8 *c;
-	u8 *d;
-	u8 *tmp; /* temporary data block */
-	u8 *ab; /* only used if ECC processing */
-};
+/*
+ * Form1 Priv_key Decryption Descriptor
+ * Private key is represented by (n,d)
+ * f is decrypted data pointer while g is pointer
+ * of encrypted data
+ */
+struct rsa_priv_frm1_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t	sgf_flg;
+	dma_addr_t	g_dma;
+	dma_addr_t	f_dma;
+	dma_addr_t	n_dma;
+	dma_addr_t	d_dma;
+	uint32_t	op;
+} __packed;
+
+/*
+ * Form2 Priv_key Decryption Descriptor
+ * Private key is represented by (p,q,d)
+ * f is decrypted data pointer while g is pointer
+ * of encrypted data
+ */
+struct rsa_priv_frm2_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t	sgf_flg;
+	dma_addr_t	g_dma;
+	dma_addr_t	f_dma;
+	dma_addr_t	d_dma;
+	dma_addr_t	p_dma;
+	dma_addr_t	q_dma;
+	dma_addr_t	tmp1_dma;
+	dma_addr_t	tmp2_dma;
+	uint32_t	p_q_len;
+	uint32_t	op;
+} __packed;
+
+/*
+ * Form3 Priv_key Decryption Descriptor
+ * Private key is represented by (p,q,dp,dq,c)
+ * f is decrypted data pointer while g is input pointer
+ * of encrypted data
+ */
+struct rsa_priv_frm3_desc_s {
+	uint32_t	desc_hdr;
+	uint32_t	sgf_flg;
+	dma_addr_t	g_dma;
+	dma_addr_t	f_dma;
+	dma_addr_t	c_dma;
+	dma_addr_t	p_dma;
+	dma_addr_t	q_dma;
+	dma_addr_t	dp_dma;
+	dma_addr_t	dq_dma;
+	dma_addr_t	tmp1_dma;
+	dma_addr_t	tmp2_dma;
+	uint32_t	p_q_len;
+	uint32_t	op;
+} __packed;
 
 #endif