crypto: n2 - Add Niagara2 crypto driver
Current deficiencies:
1) No HMAC hash support yet.
2) Although the algs are registered as ASYNC they always run
synchronously.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/n2_core.h b/drivers/crypto/n2_core.h
new file mode 100644
index 0000000..4bcbbea
--- /dev/null
+++ b/drivers/crypto/n2_core.h
@@ -0,0 +1,231 @@
+#ifndef _N2_CORE_H
+#define _N2_CORE_H
+
+#ifndef __ASSEMBLY__
+
+struct ino_blob {
+ u64 intr;
+ u64 ino;
+};
+
+struct spu_mdesc_info {
+ u64 cfg_handle;
+ struct ino_blob *ino_table;
+ int num_intrs;
+};
+
+struct n2_crypto {
+ struct spu_mdesc_info cwq_info;
+ struct list_head cwq_list;
+};
+
+struct n2_mau {
+ struct spu_mdesc_info mau_info;
+ struct list_head mau_list;
+};
+
+#define CWQ_ENTRY_SIZE 64
+#define CWQ_NUM_ENTRIES 64
+
+#define MAU_ENTRY_SIZE 64
+#define MAU_NUM_ENTRIES 64
+
+struct cwq_initial_entry {
+ u64 control;
+ u64 src_addr;
+ u64 auth_key_addr;
+ u64 auth_iv_addr;
+ u64 final_auth_state_addr;
+ u64 enc_key_addr;
+ u64 enc_iv_addr;
+ u64 dest_addr;
+};
+
+struct cwq_ext_entry {
+ u64 len;
+ u64 src_addr;
+ u64 resv1;
+ u64 resv2;
+ u64 resv3;
+ u64 resv4;
+ u64 resv5;
+ u64 resv6;
+};
+
+struct cwq_final_entry {
+ u64 control;
+ u64 src_addr;
+ u64 resv1;
+ u64 resv2;
+ u64 resv3;
+ u64 resv4;
+ u64 resv5;
+ u64 resv6;
+};
+
+#define CONTROL_LEN 0x000000000000ffffULL
+#define CONTROL_LEN_SHIFT 0
+#define CONTROL_HMAC_KEY_LEN 0x0000000000ff0000ULL
+#define CONTROL_HMAC_KEY_LEN_SHIFT 16
+#define CONTROL_ENC_TYPE 0x00000000ff000000ULL
+#define CONTROL_ENC_TYPE_SHIFT 24
+#define ENC_TYPE_ALG_RC4_STREAM 0x00ULL
+#define ENC_TYPE_ALG_RC4_NOSTREAM 0x04ULL
+#define ENC_TYPE_ALG_DES 0x08ULL
+#define ENC_TYPE_ALG_3DES 0x0cULL
+#define ENC_TYPE_ALG_AES128 0x10ULL
+#define ENC_TYPE_ALG_AES192 0x14ULL
+#define ENC_TYPE_ALG_AES256 0x18ULL
+#define ENC_TYPE_ALG_RESERVED 0x1cULL
+#define ENC_TYPE_ALG_MASK 0x1cULL
+#define ENC_TYPE_CHAINING_ECB 0x00ULL
+#define ENC_TYPE_CHAINING_CBC 0x01ULL
+#define ENC_TYPE_CHAINING_CFB 0x02ULL
+#define ENC_TYPE_CHAINING_COUNTER 0x03ULL
+#define ENC_TYPE_CHAINING_MASK 0x03ULL
+#define CONTROL_AUTH_TYPE 0x0000001f00000000ULL
+#define CONTROL_AUTH_TYPE_SHIFT 32
+#define AUTH_TYPE_RESERVED 0x00ULL
+#define AUTH_TYPE_MD5 0x01ULL
+#define AUTH_TYPE_SHA1 0x02ULL
+#define AUTH_TYPE_SHA256 0x03ULL
+#define AUTH_TYPE_CRC32 0x04ULL
+#define AUTH_TYPE_HMAC_MD5 0x05ULL
+#define AUTH_TYPE_HMAC_SHA1 0x06ULL
+#define AUTH_TYPE_HMAC_SHA256 0x07ULL
+#define AUTH_TYPE_TCP_CHECKSUM 0x08ULL
+#define AUTH_TYPE_SSL_HMAC_MD5 0x09ULL
+#define AUTH_TYPE_SSL_HMAC_SHA1 0x0aULL
+#define AUTH_TYPE_SSL_HMAC_SHA256 0x0bULL
+#define CONTROL_STRAND 0x000000e000000000ULL
+#define CONTROL_STRAND_SHIFT 37
+#define CONTROL_HASH_LEN 0x0000ff0000000000ULL
+#define CONTROL_HASH_LEN_SHIFT 40
+#define CONTROL_INTERRUPT 0x0001000000000000ULL
+#define CONTROL_STORE_FINAL_AUTH_STATE 0x0002000000000000ULL
+#define CONTROL_RESERVED 0x001c000000000000ULL
+#define CONTROL_HV_DONE 0x0004000000000000ULL
+#define CONTROL_HV_PROTOCOL_ERROR 0x0008000000000000ULL
+#define CONTROL_HV_HARDWARE_ERROR 0x0010000000000000ULL
+#define CONTROL_END_OF_BLOCK 0x0020000000000000ULL
+#define CONTROL_START_OF_BLOCK 0x0040000000000000ULL
+#define CONTROL_ENCRYPT 0x0080000000000000ULL
+#define CONTROL_OPCODE 0xff00000000000000ULL
+#define CONTROL_OPCODE_SHIFT 56
+#define OPCODE_INPLACE_BIT 0x80ULL
+#define OPCODE_SSL_KEYBLOCK 0x10ULL
+#define OPCODE_COPY 0x20ULL
+#define OPCODE_ENCRYPT 0x40ULL
+#define OPCODE_AUTH_MAC 0x41ULL
+
+#endif /* !(__ASSEMBLY__) */
+
+/* NCS v2.0 hypervisor interfaces */
+#define HV_NCS_QTYPE_MAU 0x01
+#define HV_NCS_QTYPE_CWQ 0x02
+
+/* ncs_qconf()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_QCONF
+ * ARG0: Queue type (HV_NCS_QTYPE_{MAU,CWQ})
+ * ARG1: Real address of queue, or handle for unconfigure
+ * ARG2: Number of entries in queue, zero for unconfigure
+ * RET0: status
+ * RET1: queue handle
+ *
+ * Configure a queue in the stream processing unit.
+ *
+ * The real address given as the base must be 64-byte
+ * aligned.
+ *
+ * The queue size can range from a minimum of 2 to a maximum
+ * of 64. The queue size must be a power of two.
+ *
+ * To unconfigure a queue, specify a length of zero and place
+ * the queue handle into ARG1.
+ *
+ * On configure success the hypervisor will set the FIRST, HEAD,
+ * and TAIL registers to the address of the first entry in the
+ * queue. The LAST register will be set to point to the last
+ * entry in the queue.
+ */
+#define HV_FAST_NCS_QCONF 0x111
+
+/* ncs_qinfo()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_QINFO
+ * ARG0: Queue handle
+ * RET0: status
+ * RET1: Queue type (HV_NCS_QTYPE_{MAU,CWQ})
+ * RET2: Queue base address
+ * RET3: Number of entries
+ */
+#define HV_FAST_NCS_QINFO 0x112
+
+/* ncs_gethead()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_GETHEAD
+ * ARG0: Queue handle
+ * RET0: status
+ * RET1: queue head offset
+ */
+#define HV_FAST_NCS_GETHEAD 0x113
+
+/* ncs_gettail()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_GETTAIL
+ * ARG0: Queue handle
+ * RET0: status
+ * RET1: queue tail offset
+ */
+#define HV_FAST_NCS_GETTAIL 0x114
+
+/* ncs_settail()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_SETTAIL
+ * ARG0: Queue handle
+ * ARG1: New tail offset
+ * RET0: status
+ */
+#define HV_FAST_NCS_SETTAIL 0x115
+
+/* ncs_qhandle_to_devino()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_QHANDLE_TO_DEVINO
+ * ARG0: Queue handle
+ * RET0: status
+ * RET1: devino
+ */
+#define HV_FAST_NCS_QHANDLE_TO_DEVINO 0x116
+
+/* ncs_sethead_marker()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_NCS_SETHEAD_MARKER
+ * ARG0: Queue handle
+ * ARG1: New head offset
+ * RET0: status
+ */
+#define HV_FAST_NCS_SETHEAD_MARKER 0x117
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_ncs_qconf(unsigned long queue_type,
+ unsigned long queue_ra,
+ unsigned long num_entries,
+ unsigned long *qhandle);
+extern unsigned long sun4v_ncs_qinfo(unsigned long qhandle,
+ unsigned long *queue_type,
+ unsigned long *queue_ra,
+ unsigned long *num_entries);
+extern unsigned long sun4v_ncs_gethead(unsigned long qhandle,
+ unsigned long *head);
+extern unsigned long sun4v_ncs_gettail(unsigned long qhandle,
+ unsigned long *tail);
+extern unsigned long sun4v_ncs_settail(unsigned long qhandle,
+ unsigned long tail);
+extern unsigned long sun4v_ncs_qhandle_to_devino(unsigned long qhandle,
+ unsigned long *devino);
+extern unsigned long sun4v_ncs_sethead_marker(unsigned long qhandle,
+ unsigned long head);
+#endif /* !(__ASSEMBLY__) */
+
+#endif /* _N2_CORE_H */