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linux/drivers/s390/net/iucv.h
Michael Holzheu 66a464dbc8 [PATCH] s390: debug feature changes 
This patch changes the memory allocation method for the s390 debug feature.
Trace buffers had been allocated using the get_free_pages() function before.
Therefore it was not possible to get big memory areas in a running system due
to memory fragmentation.  Now the trace buffers are subdivided into several
subbuffers with pagesize.  Therefore it is now possible to allocate more
memory for the trace buffers and more trace records can be written.

In addition to that, dynamic specification of the size of the trace buffers is
implemented.  It is now possible to change the size of a trace buffer using a
new debugfs file instance.  When writing a number into this file, the trace
buffer size is changed to 'number * pagesize'.

In the past all the traces could be obtained from userspace by accessing files
in the "proc" filesystem.  Now with debugfs we have a new filesystem which
should be used for debugging purposes.  This patch moves the debug feature
from procfs to debugfs.

Since the interface of debug_register() changed, all device drivers, which use
the debug feature had to be adjusted.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 16:24:37 -07:00

850 lines
37 KiB
C
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/*
* 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]);
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