/*
* drivers/s390/net/iucv.h
* IUCV base support.
*
* S390 version
* Copyright (C) 2000 IBM Corporation
* Author(s):Alan Altmark (Alan_Altmark@us.ibm.com)
* Xenia Tkatschow (xenia@us.ibm.com)
*
*
* Functionality:
* To explore any of the IUCV functions, one must first register
* their program using iucv_register_program(). Once your program has
* successfully completed a register, it can exploit the other functions.
* For furthur reference on all IUCV functionality, refer to the
* CP Programming Services book, also available on the web
* thru www.ibm.com/s390/vm/pubs, manual # SC24-5760
*
* Definition of Return Codes
* -All positive return codes including zero are reflected back
* from CP except for iucv_register_program. The definition of each
* return code can be found in CP Programming Services book.
* Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760
* - Return Code of:
* (-EINVAL) Invalid value
* (-ENOMEM) storage allocation failed
* pgmask defined in iucv_register_program will be set depending on input
* paramters.
*
*/
#include <linux/types.h>
#include <asm/debug.h>
/**
* Debug Facility stuff
*/
#define IUCV_DBF_SETUP_NAME "iucv_setup"
#define IUCV_DBF_SETUP_LEN 32
#define IUCV_DBF_SETUP_PAGES 2
#define IUCV_DBF_SETUP_NR_AREAS 1
#define IUCV_DBF_SETUP_LEVEL 3
#define IUCV_DBF_DATA_NAME "iucv_data"
#define IUCV_DBF_DATA_LEN 128
#define IUCV_DBF_DATA_PAGES 2
#define IUCV_DBF_DATA_NR_AREAS 1
#define IUCV_DBF_DATA_LEVEL 2
#define IUCV_DBF_TRACE_NAME "iucv_trace"
#define IUCV_DBF_TRACE_LEN 16
#define IUCV_DBF_TRACE_PAGES 4
#define IUCV_DBF_TRACE_NR_AREAS 1
#define IUCV_DBF_TRACE_LEVEL 3
#define IUCV_DBF_TEXT(name,level,text) \
do { \
debug_text_event(iucv_dbf_##name,level,text); \
} while (0)
#define IUCV_DBF_HEX(name,level,addr,len) \
do { \
debug_event(iucv_dbf_##name,level,(void*)(addr),len); \
} while (0)
DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf);
#define IUCV_DBF_TEXT_(name,level,text...) \
do { \
char* iucv_dbf_txt_buf = get_cpu_var(iucv_dbf_txt_buf); \
sprintf(iucv_dbf_txt_buf, text); \
debug_text_event(iucv_dbf_##name,level,iucv_dbf_txt_buf); \
put_cpu_var(iucv_dbf_txt_buf); \
} while (0)
#define IUCV_DBF_SPRINTF(name,level,text...) \
do { \
debug_sprintf_event(iucv_dbf_trace, level, ##text ); \
debug_sprintf_event(iucv_dbf_trace, level, text ); \
} while (0)
/**
* some more debug stuff
*/
#define IUCV_HEXDUMP16(importance,header,ptr) \
PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
"%02x %02x %02x %02x %02x %02x %02x %02x\n", \
*(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
*(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
*(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
*(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
*(((char*)ptr)+12),*(((char*)ptr)+13), \
*(((char*)ptr)+14),*(((char*)ptr)+15)); \
PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
"%02x %02x %02x %02x %02x %02x %02x %02x\n", \
*(((char*)ptr)+16),*(((char*)ptr)+17), \
*(((char*)ptr)+18),*(((char*)ptr)+19), \
*(((char*)ptr)+20),*(((char*)ptr)+21), \
*(((char*)ptr)+22),*(((char*)ptr)+23), \
*(((char*)ptr)+24),*(((char*)ptr)+25), \
*(((char*)ptr)+26),*(((char*)ptr)+27), \
*(((char*)ptr)+28),*(((char*)ptr)+29), \
*(((char*)ptr)+30),*(((char*)ptr)+31));
static inline void
iucv_hex_dump(unsigned char *buf, size_t len)
{
size_t i;
for (i = 0; i < len; i++) {
if (i && !(i % 16))
printk("\n");
printk("%02x ", *(buf + i));
}
printk("\n");
}
/**
* end of debug stuff
*/
#define uchar unsigned char
#define ushort unsigned short
#define ulong unsigned long
#define iucv_handle_t void *
/* flags1:
* All flags are defined in the field IPFLAGS1 of each function
* and can be found in CP Programming Services.
* IPLOCAL - Indicates the connect can only be satisfied on the
* local system
* IPPRTY - Indicates a priority message
* IPQUSCE - Indicates you do not want to receive messages on a
* path until an iucv_resume is issued
* IPRMDATA - Indicates that the message is in the parameter list
*/
#define IPLOCAL 0x01
#define IPPRTY 0x20
#define IPQUSCE 0x40
#define IPRMDATA 0x80
/* flags1_out:
* All flags are defined in the output field of IPFLAGS1 for each function
* and can be found in CP Programming Services.
* IPNORPY - Specifies this is a one-way message and no reply is expected.
* IPPRTY - Indicates a priority message is permitted. Defined in flags1.
*/
#define IPNORPY 0x10
#define Nonpriority_MessagePendingInterruptsFlag 0x80
#define Priority_MessagePendingInterruptsFlag 0x40
#define Nonpriority_MessageCompletionInterruptsFlag 0x20
#define Priority_MessageCompletionInterruptsFlag 0x10
#define IUCVControlInterruptsFlag 0x08
#define AllInterrupts 0xf8
/*
* Mapping of external interrupt buffers should be used with the corresponding
* interrupt types.
* Names: iucv_ConnectionPending -> connection pending
* iucv_ConnectionComplete -> connection complete
* iucv_ConnectionSevered -> connection severed
* iucv_ConnectionQuiesced -> connection quiesced
* iucv_ConnectionResumed -> connection resumed
* iucv_MessagePending -> message pending
* iucv_MessageComplete -> message complete
*/
typedef struct {
u16 ippathid;
uchar ipflags1;
uchar iptype;
u16 ipmsglim;
u16 res1;
uchar ipvmid[8];
uchar ipuser[16];
u32 res3;
uchar ippollfg;
uchar res4[3];
} iucv_ConnectionPending;
typedef struct {
u16 ippathid;
uchar ipflags1;
uchar iptype;
u16 ipmsglim;
u16 res1;
uchar res2[8];
uchar ipuser[16];
u32 res3;
uchar ippollfg;
uchar res4[3];
} iucv_ConnectionComplete;
typedef struct {
u16 ippathid;
uchar res1;
uchar iptype;
u32 res2;
uchar res3[8];
uchar ipuser[16];
u32 res4;
uchar ippollfg;
uchar res5[3];
} iucv_ConnectionSevered;
typedef struct {
u16 ippathid;
uchar res1;
uchar iptype;
u32 res2;
uchar res3[8];
uchar ipuser[16];
u32 res4;
uchar ippollfg;
uchar res5[3];
} iucv_ConnectionQuiesced;
typedef struct {
u16 ippathid;
uchar res1;
uchar iptype;
u32 res2;
uchar res3[8];
uchar ipuser[16];
u32 res4;
uchar ippollfg;
uchar res5[3];
} iucv_ConnectionResumed;
typedef struct {
u16 ippathid;
uchar ipflags1;
uchar iptype;
u32 ipmsgid;
u32 iptrgcls;
union u2 {
u32 iprmmsg1_u32;
uchar iprmmsg1[4];
} ln1msg1;
union u1 {
u32 ipbfln1f;
uchar iprmmsg2[4];
} ln1msg2;
u32 res1[3];
u32 ipbfln2f;
uchar ippollfg;
uchar res2[3];
} iucv_MessagePending;
typedef struct {
u16 ippathid;
uchar ipflags1;
uchar iptype;
u32 ipmsgid;
u32 ipaudit;
uchar iprmmsg[8];
u32 ipsrccls;
u32 ipmsgtag;
u32 res;
u32 ipbfln2f;
uchar ippollfg;
uchar res2[3];
} iucv_MessageComplete;
/*
* iucv_interrupt_ops_t: Is a vector of functions that handle
* IUCV interrupts.
* Parameter list:
* eib - is a pointer to a 40-byte area described
* with one of the structures above.
* pgm_data - this data is strictly for the
* interrupt handler that is passed by
* the application. This may be an address
* or token.
*/
typedef struct {
void (*ConnectionPending) (iucv_ConnectionPending * eib,
void *pgm_data);
void (*ConnectionComplete) (iucv_ConnectionComplete * eib,
void *pgm_data);
void (*ConnectionSevered) (iucv_ConnectionSevered * eib,
void *pgm_data);
void (*ConnectionQuiesced) (iucv_ConnectionQuiesced * eib,
void *pgm_data);
void (*ConnectionResumed) (iucv_ConnectionResumed * eib,
void *pgm_data);
void (*MessagePending) (iucv_MessagePending * eib, void *pgm_data);
void (*MessageComplete) (iucv_MessageComplete * eib, void *pgm_data);
} iucv_interrupt_ops_t;
/*
*iucv_array_t : Defines buffer array.
* Inside the array may be 31- bit addresses and 31-bit lengths.
*/
typedef struct {
u32 address;
u32 length;
} iucv_array_t __attribute__ ((aligned (8)));
extern struct bus_type iucv_bus;
extern struct device *iucv_root;
/* -prototypes- */
/*
* Name: iucv_register_program
* Purpose: Registers an application with IUCV
* Input: prmname - user identification
* userid - machine identification
* pgmmask - indicates which bits in the prmname and userid combined will be
* used to determine who is given control
* ops - address of vector of interrupt handlers
* pgm_data- application data passed to interrupt handlers
* Output: NA
* Return: address of handler
* (0) - Error occurred, registration not completed.
* NOTE: Exact cause of failure will be recorded in syslog.
*/
iucv_handle_t iucv_register_program (uchar pgmname[16],
uchar userid[8],
uchar pgmmask[24],
iucv_interrupt_ops_t * ops,
void *pgm_data);
/*
* Name: iucv_unregister_program
* Purpose: Unregister application with IUCV
* Input: address of handler
* Output: NA
* Return: (0) - Normal return
* (-EINVAL) - Internal error, wild pointer
*/
int iucv_unregister_program (iucv_handle_t handle);
/*
* Name: iucv_accept
* Purpose: This function is issued after the user receives a Connection Pending external
* interrupt and now wishes to complete the IUCV communication path.
* Input: pathid - u16 , Path identification number
* msglim_reqstd - u16, The number of outstanding messages requested.
* user_data - uchar[16], Data specified by the iucv_connect function.
* flags1 - int, Contains options for this path.
* -IPPRTY - 0x20- Specifies if you want to send priority message.
* -IPRMDATA - 0x80, Specifies whether your program can handle a message
* in the parameter list.
* -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being
* established.
* handle - iucv_handle_t, Address of handler.
* pgm_data - void *, Application data passed to interrupt handlers.
* flags1_out - int * Contains information about the path
* - IPPRTY - 0x20, Indicates you may send priority messages.
* msglim - *u16, Number of outstanding messages.
* Output: return code from CP IUCV call.
*/
int iucv_accept (u16 pathid,
u16 msglim_reqstd,
uchar user_data[16],
int flags1,
iucv_handle_t handle,
void *pgm_data, int *flags1_out, u16 * msglim);
/*
* Name: iucv_connect
* Purpose: This function establishes an IUCV path. Although the connect may complete
* successfully, you are not able to use the path until you receive an IUCV
* Connection Complete external interrupt.
* Input: pathid - u16 *, Path identification number
* msglim_reqstd - u16, Number of outstanding messages requested
* user_data - uchar[16], 16-byte user data
* userid - uchar[8], User identification
* system_name - uchar[8], 8-byte identifying the system name
* flags1 - int, Contains options for this path.
* -IPPRTY - 0x20, Specifies if you want to send priority message.
* -IPRMDATA - 0x80, Specifies whether your program can handle a message
* in the parameter list.
* -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being
* established.
* -IPLOCAL - 0X01, Allows an application to force the partner to be on
* the local system. If local is specified then target class cannot be
* specified.
* flags1_out - int * Contains information about the path
* - IPPRTY - 0x20, Indicates you may send priority messages.
* msglim - * u16, Number of outstanding messages
* handle - iucv_handle_t, Address of handler
* pgm_data - void *, Application data passed to interrupt handlers
* Output: return code from CP IUCV call
* rc - return code from iucv_declare_buffer
* -EINVAL - Invalid handle passed by application
* -EINVAL - Pathid address is NULL
* add_pathid_result - Return code from internal function add_pathid
*/
int
iucv_connect (u16 * pathid,
u16 msglim_reqstd,
uchar user_data[16],
uchar userid[8],
uchar system_name[8],
int flags1,
int *flags1_out,
u16 * msglim, iucv_handle_t handle, void *pgm_data);
/*
* Name: iucv_purge
* Purpose: This function cancels a message that you have sent.
* Input: pathid - Path identification number.
* msgid - Specifies the message ID of the message to be purged.
* srccls - Specifies the source message class.
* Output: audit - Contains information about asynchronous error
* that may have affected the normal completion
* of this message.
* Return: Return code from CP IUCV call.
*/
int iucv_purge (u16 pathid, u32 msgid, u32 srccls, __u32 *audit);
/*
* Name: iucv_query_maxconn
* Purpose: This function determines the maximum number of communication paths you
* may establish.
* Return: maxconn - ulong, Maximum number of connection the virtual machine may
* establish.
*/
ulong iucv_query_maxconn (void);
/*
* Name: iucv_query_bufsize
* Purpose: This function determines how large an external interrupt
* buffer IUCV requires to store information.
* Return: bufsize - ulong, Size of external interrupt buffer.
*/
ulong iucv_query_bufsize (void);
/*
* Name: iucv_quiesce
* Purpose: This function temporarily suspends incoming messages on an
* IUCV path. You can later reactivate the path by invoking
* the iucv_resume function.
* Input: pathid - Path identification number
* user_data - 16-bytes of user data
* Output: NA
* Return: Return code from CP IUCV call.
*/
int iucv_quiesce (u16 pathid, uchar user_data[16]);
/*
* Name: iucv_receive
* Purpose: This function receives messages that are being sent to you
* over established paths. Data will be returned in buffer for length of
* buflen.
* Input:
* pathid - Path identification number.
* buffer - Address of buffer to receive.
* buflen - Length of buffer to receive.
* msgid - Specifies the message ID.
* trgcls - Specifies target class.
* Output:
* flags1_out: int *, Contains information about this path.
* IPNORPY - 0x10 Specifies this is a one-way message and no reply is
* expected.
* IPPRTY - 0x20 Specifies if you want to send priority message.
* IPRMDATA - 0x80 specifies the data is contained in the parameter list
* residual_buffer - address of buffer updated by the number
* of bytes you have received.
* residual_length -
* Contains one of the following values, if the receive buffer is:
* The same length as the message, this field is zero.
* Longer than the message, this field contains the number of
* bytes remaining in the buffer.
* Shorter than the message, this field contains the residual
* count (that is, the number of bytes remaining in the
* message that does not fit into the buffer. In this
* case b2f0_result = 5.
* Return: Return code from CP IUCV call.
* (-EINVAL) - buffer address is pointing to NULL
*/
int iucv_receive (u16 pathid,
u32 msgid,
u32 trgcls,
void *buffer,
ulong buflen,
int *flags1_out,
ulong * residual_buffer, ulong * residual_length);
/*
* Name: iucv_receive_array
* Purpose: This function receives messages that are being sent to you
* over established paths. Data will be returned in first buffer for
* length of first buffer.
* Input: pathid - Path identification number.
* msgid - specifies the message ID.
* trgcls - Specifies target class.
* buffer - Address of array of buffers.
* buflen - Total length of buffers.
* Output:
* flags1_out: int *, Contains information about this path.
* IPNORPY - 0x10 Specifies this is a one-way message and no reply is
* expected.
* IPPRTY - 0x20 Specifies if you want to send priority message.
* IPRMDATA - 0x80 specifies the data is contained in the parameter list
* residual_buffer - address points to the current list entry IUCV
* is working on.
* residual_length -
* Contains one of the following values, if the receive buffer is:
* The same length as the message, this field is zero.
* Longer than the message, this field contains the number of
* bytes remaining in the buffer.
* Shorter than the message, this field contains the residual
* count (that is, the number of bytes remaining in the
* message that does not fit into the buffer. In this
* case b2f0_result = 5.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_receive_array (u16 pathid,
u32 msgid,
u32 trgcls,
iucv_array_t * buffer,
ulong buflen,
int *flags1_out,
ulong * residual_buffer, ulong * residual_length);
/*
* Name: iucv_reject
* Purpose: The reject function refuses a specified message. Between the
* time you are notified of a message and the time that you
* complete the message, the message may be rejected.
* Input: pathid - Path identification number.
* msgid - Specifies the message ID.
* trgcls - Specifies target class.
* Output: NA
* Return: Return code from CP IUCV call.
*/
int iucv_reject (u16 pathid, u32 msgid, u32 trgcls);
/*
* Name: iucv_reply
* Purpose: This function responds to the two-way messages that you
* receive. You must identify completely the message to
* which you wish to reply. ie, pathid, msgid, and trgcls.
* Input: pathid - Path identification number.
* msgid - Specifies the message ID.
* trgcls - Specifies target class.
* flags1 - Option for path.
* IPPRTY- 0x20, Specifies if you want to send priority message.
* buffer - Address of reply buffer.
* buflen - Length of reply buffer.
* Output: residual_buffer - Address of buffer updated by the number
* of bytes you have moved.
* residual_length - Contains one of the following values:
* If the answer buffer is the same length as the reply, this field
* contains zero.
* If the answer buffer is longer than the reply, this field contains
* the number of bytes remaining in the buffer.
* If the answer buffer is shorter than the reply, this field contains
* a residual count (that is, the number of bytes remianing in the
* reply that does not fit into the buffer. In this
* case b2f0_result = 5.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_reply (u16 pathid,
u32 msgid,
u32 trgcls,
int flags1,
void *buffer, ulong buflen, ulong * residual_buffer,
ulong * residual_length);
/*
* Name: iucv_reply_array
* Purpose: This function responds to the two-way messages that you
* receive. You must identify completely the message to
* which you wish to reply. ie, pathid, msgid, and trgcls.
* The array identifies a list of addresses and lengths of
* discontiguous buffers that contains the reply data.
* Input: pathid - Path identification number
* msgid - Specifies the message ID.
* trgcls - Specifies target class.
* flags1 - Option for path.
* IPPRTY- 0x20, Specifies if you want to send priority message.
* buffer - Address of array of reply buffers.
* buflen - Total length of reply buffers.
* Output: residual_buffer - Address of buffer which IUCV is currently working on.
* residual_length - Contains one of the following values:
* If the answer buffer is the same length as the reply, this field
* contains zero.
* If the answer buffer is longer than the reply, this field contains
* the number of bytes remaining in the buffer.
* If the answer buffer is shorter than the reply, this field contains
* a residual count (that is, the number of bytes remianing in the
* reply that does not fit into the buffer. In this
* case b2f0_result = 5.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_reply_array (u16 pathid,
u32 msgid,
u32 trgcls,
int flags1,
iucv_array_t * buffer,
ulong buflen, ulong * residual_address,
ulong * residual_length);
/*
* Name: iucv_reply_prmmsg
* Purpose: This function responds to the two-way messages that you
* receive. You must identify completely the message to
* which you wish to reply. ie, pathid, msgid, and trgcls.
* Prmmsg signifies the data is moved into the
* parameter list.
* Input: pathid - Path identification number.
* msgid - Specifies the message ID.
* trgcls - Specifies target class.
* flags1 - Option for path.
* IPPRTY- 0x20 Specifies if you want to send priority message.
* prmmsg - 8-bytes of data to be placed into the parameter.
* list.
* Output: NA
* Return: Return code from CP IUCV call.
*/
int iucv_reply_prmmsg (u16 pathid,
u32 msgid, u32 trgcls, int flags1, uchar prmmsg[8]);
/*
* Name: iucv_resume
* Purpose: This function restores communications over a quiesced path
* Input: pathid - Path identification number.
* user_data - 16-bytes of user data.
* Output: NA
* Return: Return code from CP IUCV call.
*/
int iucv_resume (u16 pathid, uchar user_data[16]);
/*
* Name: iucv_send
* Purpose: This function transmits data to another application.
* Data to be transmitted is in a buffer and this is a
* one-way message and the receiver will not reply to the
* message.
* Input: pathid - Path identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag to be associated with the message.
* flags1 - Option for path.
* IPPRTY- 0x20 Specifies if you want to send priority message.
* buffer - Address of send buffer.
* buflen - Length of send buffer.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_send (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls, u32 msgtag, int flags1, void *buffer, ulong buflen);
/*
* Name: iucv_send_array
* Purpose: This function transmits data to another application.
* The contents of buffer is the address of the array of
* addresses and lengths of discontiguous buffers that hold
* the message text. This is a one-way message and the
* receiver will not reply to the message.
* Input: pathid - Path identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag to be associated witht the message.
* flags1 - Option for path.
* IPPRTY- specifies if you want to send priority message.
* buffer - Address of array of send buffers.
* buflen - Total length of send buffers.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_send_array (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls,
u32 msgtag,
int flags1, iucv_array_t * buffer, ulong buflen);
/*
* Name: iucv_send_prmmsg
* Purpose: This function transmits data to another application.
* Prmmsg specifies that the 8-bytes of data are to be moved
* into the parameter list. This is a one-way message and the
* receiver will not reply to the message.
* Input: pathid - Path identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag to be associated with the message.
* flags1 - Option for path.
* IPPRTY- 0x20 specifies if you want to send priority message.
* prmmsg - 8-bytes of data to be placed into parameter list.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
*/
int iucv_send_prmmsg (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls, u32 msgtag, int flags1, uchar prmmsg[8]);
/*
* Name: iucv_send2way
* Purpose: This function transmits data to another application.
* Data to be transmitted is in a buffer. The receiver
* of the send is expected to reply to the message and
* a buffer is provided into which IUCV moves the reply
* to this message.
* Input: pathid - Path identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag associated with the message.
* flags1 - Option for path.
* IPPRTY- 0x20 Specifies if you want to send priority message.
* buffer - Address of send buffer.
* buflen - Length of send buffer.
* ansbuf - Address of buffer into which IUCV moves the reply of
* this message.
* anslen - Address of length of buffer.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer or ansbuf address is NULL.
*/
int iucv_send2way (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls,
u32 msgtag,
int flags1,
void *buffer, ulong buflen, void *ansbuf, ulong anslen);
/*
* Name: iucv_send2way_array
* Purpose: This function transmits data to another application.
* The contents of buffer is the address of the array of
* addresses and lengths of discontiguous buffers that hold
* the message text. The receiver of the send is expected to
* reply to the message and a buffer is provided into which
* IUCV moves the reply to this message.
* Input: pathid - Path identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag to be associated with the message.
* flags1 - Option for path.
* IPPRTY- 0x20 Specifies if you want to send priority message.
* buffer - Sddress of array of send buffers.
* buflen - Total length of send buffers.
* ansbuf - Address of array of buffer into which IUCV moves the reply
* of this message.
* anslen - Address of length reply buffers.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_send2way_array (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls,
u32 msgtag,
int flags1,
iucv_array_t * buffer,
ulong buflen, iucv_array_t * ansbuf, ulong anslen);
/*
* Name: iucv_send2way_prmmsg
* Purpose: This function transmits data to another application.
* Prmmsg specifies that the 8-bytes of data are to be moved
* into the parameter list. This is a two-way message and the
* receiver of the message is expected to reply. A buffer
* is provided into which IUCV moves the reply to this
* message.
* Input: pathid - Rath identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag to be associated with the message.
* flags1 - Option for path.
* IPPRTY- 0x20 Specifies if you want to send priority message.
* prmmsg - 8-bytes of data to be placed in parameter list.
* ansbuf - Address of buffer into which IUCV moves the reply of
* this message.
* anslen - Address of length of buffer.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Buffer address is NULL.
*/
int iucv_send2way_prmmsg (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls,
u32 msgtag,
ulong flags1,
uchar prmmsg[8], void *ansbuf, ulong anslen);
/*
* Name: iucv_send2way_prmmsg_array
* Purpose: This function transmits data to another application.
* Prmmsg specifies that the 8-bytes of data are to be moved
* into the parameter list. This is a two-way message and the
* receiver of the message is expected to reply. A buffer
* is provided into which IUCV moves the reply to this
* message. The contents of ansbuf is the address of the
* array of addresses and lengths of discontiguous buffers
* that contain the reply.
* Input: pathid - Path identification number.
* trgcls - Specifies target class.
* srccls - Specifies the source message class.
* msgtag - Specifies a tag to be associated with the message.
* flags1 - Option for path.
* IPPRTY- 0x20 specifies if you want to send priority message.
* prmmsg - 8-bytes of data to be placed into the parameter list.
* ansbuf - Address of array of buffer into which IUCV moves the reply
* of this message.
* anslen - Address of length of reply buffers.
* Output: msgid - Specifies the message ID.
* Return: Return code from CP IUCV call.
* (-EINVAL) - Ansbuf address is NULL.
*/
int iucv_send2way_prmmsg_array (u16 pathid,
u32 * msgid,
u32 trgcls,
u32 srccls,
u32 msgtag,
int flags1,
uchar prmmsg[8],
iucv_array_t * ansbuf, ulong anslen);
/*
* Name: iucv_setmask
* Purpose: This function enables or disables the following IUCV
* external interruptions: Nonpriority and priority message
* interrupts, nonpriority and priority reply interrupts.
* Input: SetMaskFlag - options for interrupts
* 0x80 - Nonpriority_MessagePendingInterruptsFlag
* 0x40 - Priority_MessagePendingInterruptsFlag
* 0x20 - Nonpriority_MessageCompletionInterruptsFlag
* 0x10 - Priority_MessageCompletionInterruptsFlag
* 0x08 - IUCVControlInterruptsFlag
* Output: NA
* Return: Return code from CP IUCV call.
*/
int iucv_setmask (int SetMaskFlag);
/*
* Name: iucv_sever
* Purpose: This function terminates an IUCV path.
* Input: pathid - Path identification number.
* user_data - 16-bytes of user data.
* Output: NA
* Return: Return code from CP IUCV call.
* (-EINVAL) - Interal error, wild pointer.
*/
int iucv_sever (u16 pathid, uchar user_data[16]);
