[S390] zcrypt PCICC, PCIXCC coprocessor card ap bus drivers.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 176 insertions, 0 deletions

diff --git a/drivers/s390/crypto/zcrypt_pcicc.h b/drivers/s390/crypto/zcrypt_pcicc.h
new file mode 100644
index 000000000000..027bafc7312a
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_pcicc.h
@@ -0,0 +1,176 @@
+/*
+ *  linux/drivers/s390/crypto/zcrypt_pcicc.h
+ *
+ *  zcrypt 2.0.0
+ *
+ *  Copyright (C)  2001, 2006 IBM Corporation
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _ZCRYPT_PCICC_H_
+#define _ZCRYPT_PCICC_H_
+
+/**
+ * The type 6 message family is associated with PCICC or PCIXCC cards.
+ *
+ * It contains a message header followed by a CPRB, both of which
+ * are described below.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type6_hdr {
+	unsigned char reserved1;	/* 0x00				*/
+	unsigned char type;		/* 0x06				*/
+	unsigned char reserved2[2];	/* 0x0000			*/
+	unsigned char right[4];		/* 0x00000000			*/
+	unsigned char reserved3[2];	/* 0x0000			*/
+	unsigned char reserved4[2];	/* 0x0000			*/
+	unsigned char apfs[4];		/* 0x00000000			*/
+	unsigned int  offset1;		/* 0x00000058 (offset to CPRB)	*/
+	unsigned int  offset2;		/* 0x00000000			*/
+	unsigned int  offset3;		/* 0x00000000			*/
+	unsigned int  offset4;		/* 0x00000000			*/
+	unsigned char agent_id[16];	/* PCICC:			*/
+					/*    0x0100			*/
+					/*    0x4343412d4150504c202020	*/
+					/*    0x010101			*/
+					/* PCIXCC:			*/
+					/*    0x4341000000000000	*/
+					/*    0x0000000000000000	*/
+	unsigned char rqid[2];		/* rqid.  internal to 603	*/
+	unsigned char reserved5[2];	/* 0x0000			*/
+	unsigned char function_code[2];	/* for PKD, 0x5044 (ascii 'PD')	*/
+	unsigned char reserved6[2];	/* 0x0000			*/
+	unsigned int  ToCardLen1;	/* (request CPRB len + 3) & -4	*/
+	unsigned int  ToCardLen2;	/* db len 0x00000000 for PKD	*/
+	unsigned int  ToCardLen3;	/* 0x00000000			*/
+	unsigned int  ToCardLen4;	/* 0x00000000			*/
+	unsigned int  FromCardLen1;	/* response buffer length	*/
+	unsigned int  FromCardLen2;	/* db len 0x00000000 for PKD	*/
+	unsigned int  FromCardLen3;	/* 0x00000000			*/
+	unsigned int  FromCardLen4;	/* 0x00000000			*/
+} __attribute__((packed));
+
+/**
+ * CPRB
+ *	  Note that all shorts, ints and longs are little-endian.
+ *	  All pointer fields are 32-bits long, and mean nothing
+ *
+ *	  A request CPRB is followed by a request_parameter_block.
+ *
+ *	  The request (or reply) parameter block is organized thus:
+ *	    function code
+ *	    VUD block
+ *	    key block
+ */
+struct CPRB {
+	unsigned short cprb_len;	/* CPRB length			 */
+	unsigned char cprb_ver_id;	/* CPRB version id.		 */
+	unsigned char pad_000;		/* Alignment pad byte.		 */
+	unsigned char srpi_rtcode[4];	/* SRPI return code LELONG	 */
+	unsigned char srpi_verb;	/* SRPI verb type		 */
+	unsigned char flags;		/* flags			 */
+	unsigned char func_id[2];	/* function id			 */
+	unsigned char checkpoint_flag;	/*				 */
+	unsigned char resv2;		/* reserved			 */
+	unsigned short req_parml;	/* request parameter buffer	 */
+					/* length 16-bit little endian	 */
+	unsigned char req_parmp[4];	/* request parameter buffer	 *
+					 * pointer (means nothing: the	 *
+					 * parameter buffer follows	 *
+					 * the CPRB).			 */
+	unsigned char req_datal[4];	/* request data buffer		 */
+					/* length	  ULELONG	 */
+	unsigned char req_datap[4];	/* request data buffer		 */
+					/* pointer			 */
+	unsigned short rpl_parml;	/* reply  parameter buffer	 */
+					/* length 16-bit little endian	 */
+	unsigned char pad_001[2];	/* Alignment pad bytes. ULESHORT */
+	unsigned char rpl_parmp[4];	/* reply parameter buffer	 *
+					 * pointer (means nothing: the	 *
+					 * parameter buffer follows	 *
+					 * the CPRB).			 */
+	unsigned char rpl_datal[4];	/* reply data buffer len ULELONG */
+	unsigned char rpl_datap[4];	/* reply data buffer		 */
+					/* pointer			 */
+	unsigned short ccp_rscode;	/* server reason code	ULESHORT */
+	unsigned short ccp_rtcode;	/* server return code	ULESHORT */
+	unsigned char repd_parml[2];	/* replied parameter len ULESHORT*/
+	unsigned char mac_data_len[2];	/* Mac Data Length	ULESHORT */
+	unsigned char repd_datal[4];	/* replied data length	ULELONG	 */
+	unsigned char req_pc[2];	/* PC identifier		 */
+	unsigned char res_origin[8];	/* resource origin		 */
+	unsigned char mac_value[8];	/* Mac Value			 */
+	unsigned char logon_id[8];	/* Logon Identifier		 */
+	unsigned char usage_domain[2];	/* cdx				 */
+	unsigned char resv3[18];	/* reserved for requestor	 */
+	unsigned short svr_namel;	/* server name length  ULESHORT	 */
+	unsigned char svr_name[8];	/* server name			 */
+} __attribute__((packed));
+
+/**
+ * The type 86 message family is associated with PCICC and PCIXCC cards.
+ *
+ * It contains a message header followed by a CPRB.  The CPRB is
+ * the same as the request CPRB, which is described above.
+ *
+ * If format is 1, an error condition exists and no data beyond
+ * the 8-byte message header is of interest.
+ *
+ * The non-error message is shown below.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type86_hdr {
+	unsigned char reserved1;	/* 0x00				*/
+	unsigned char type;		/* 0x86				*/
+	unsigned char format;		/* 0x01 (error) or 0x02 (ok)	*/
+	unsigned char reserved2;	/* 0x00				*/
+	unsigned char reply_code;	/* reply code (see above)	*/
+	unsigned char reserved3[3];	/* 0x000000			*/
+} __attribute__((packed));
+
+#define TYPE86_RSP_CODE 0x86
+#define TYPE86_FMT2	0x02
+
+struct type86_fmt2_ext {
+	unsigned char	  reserved[4];	/* 0x00000000			*/
+	unsigned char	  apfs[4];	/* final status			*/
+	unsigned int	  count1;	/* length of CPRB + parameters	*/
+	unsigned int	  offset1;	/* offset to CPRB		*/
+	unsigned int	  count2;	/* 0x00000000			*/
+	unsigned int	  offset2;	/* db offset 0x00000000 for PKD	*/
+	unsigned int	  count3;	/* 0x00000000			*/
+	unsigned int	  offset3;	/* 0x00000000			*/
+	unsigned int	  count4;	/* 0x00000000			*/
+	unsigned int	  offset4;	/* 0x00000000			*/
+} __attribute__((packed));
+
+struct function_and_rules_block {
+	unsigned char function_code[2];
+	unsigned short ulen;
+	unsigned char only_rule[8];
+} __attribute__((packed));
+
+int zcrypt_pcicc_init(void);
+void zcrypt_pcicc_exit(void);
+
+#endif /* _ZCRYPT_PCICC_H_ */