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/*
 *  Multiprocessing Support for the Partition Manager
 *
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  partmp.c,v 1.11 1999/11/17 17:50:27 joel Exp
 */
 
#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/score/mpci.h>
#include <rtems/score/mppkt.h>
#include <rtems/score/object.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/part.h>
#include <rtems/score/thread.h>
#include <rtems/rtems/support.h>
 
/*PAGE
 *
 *  _Partition_MP_Send_process_packet
 *
 */
 
void _Partition_MP_Send_process_packet (
  Partition_MP_Remote_operations  operation,
  Objects_Id                      partition_id,
  rtems_name                      name,
  Objects_Id                      proxy_id
)
{
  Partition_MP_Packet *the_packet;
  unsigned32           node;
 
  switch ( operation ) {
 
    case PARTITION_MP_ANNOUNCE_CREATE:
    case PARTITION_MP_ANNOUNCE_DELETE:
    case PARTITION_MP_EXTRACT_PROXY:
 
      the_packet                    = _Partition_MP_Get_packet();
      the_packet->Prefix.the_class  = MP_PACKET_PARTITION;
      the_packet->Prefix.length     = sizeof ( Partition_MP_Packet );
      the_packet->Prefix.to_convert = sizeof ( Partition_MP_Packet );
      the_packet->operation         = operation;
      the_packet->Prefix.id         = partition_id;
      the_packet->name              = name;
      the_packet->proxy_id          = proxy_id;
 
      if ( operation == PARTITION_MP_EXTRACT_PROXY )
         node = rtems_get_node( partition_id );
      else
         node = MPCI_ALL_NODES;
 
      _MPCI_Send_process_packet( node, &the_packet->Prefix );
      break;
 
    case PARTITION_MP_GET_BUFFER_REQUEST:
    case PARTITION_MP_GET_BUFFER_RESPONSE:
    case PARTITION_MP_RETURN_BUFFER_REQUEST:
    case PARTITION_MP_RETURN_BUFFER_RESPONSE:
      break;
  }
}
 
/*PAGE
 *
 *  _Partition_MP_Send_request_packet
 *
 */
 
rtems_status_code _Partition_MP_Send_request_packet (
  Partition_MP_Remote_operations  operation,
  Objects_Id                      partition_id,
  void                           *buffer
)
{
  Partition_MP_Packet *the_packet;
 
  switch ( operation ) {
 
    case PARTITION_MP_GET_BUFFER_REQUEST:
    case PARTITION_MP_RETURN_BUFFER_REQUEST:
 
      the_packet                    = _Partition_MP_Get_packet();
      the_packet->Prefix.the_class  = MP_PACKET_PARTITION;
      the_packet->Prefix.length     = sizeof ( Partition_MP_Packet );
      the_packet->Prefix.to_convert = sizeof ( Partition_MP_Packet );
      the_packet->operation         = operation;
      the_packet->Prefix.id         = partition_id;
      the_packet->buffer            = buffer;
 
      return
        _MPCI_Send_request_packet(
          rtems_get_node( partition_id ),
          &the_packet->Prefix,
          STATES_READY      /* Not used */
        );
 
      break;
 
    case PARTITION_MP_ANNOUNCE_CREATE:
    case PARTITION_MP_ANNOUNCE_DELETE:
    case PARTITION_MP_EXTRACT_PROXY:
    case PARTITION_MP_GET_BUFFER_RESPONSE:
    case PARTITION_MP_RETURN_BUFFER_RESPONSE:
      break;
 
  }
  /*
   *  The following line is included to satisfy compilers which
   *  produce warnings when a function does not end with a return.
   */
  return RTEMS_SUCCESSFUL;
}
 
/*PAGE
 *
 *  _Partition_MP_Send_response_packet
 *
 */
 
void _Partition_MP_Send_response_packet (
  Partition_MP_Remote_operations  operation,
  Objects_Id                      partition_id,
  Thread_Control                 *the_thread
)
{
  Partition_MP_Packet *the_packet;
 
  switch ( operation ) {
 
    case PARTITION_MP_GET_BUFFER_RESPONSE:
    case PARTITION_MP_RETURN_BUFFER_RESPONSE:
 
      the_packet = ( Partition_MP_Packet *) the_thread->receive_packet;
 
/*
 *  The packet being returned already contains the class, length, and
 *  to_convert fields, therefore they are not set in this routine.
 */
      the_packet->operation = operation;
      the_packet->Prefix.id = the_packet->Prefix.source_tid;
 
      _MPCI_Send_response_packet(
        rtems_get_node( the_packet->Prefix.source_tid ),
        &the_packet->Prefix
      );
      break;
 
    case PARTITION_MP_ANNOUNCE_CREATE:
    case PARTITION_MP_ANNOUNCE_DELETE:
    case PARTITION_MP_EXTRACT_PROXY:
    case PARTITION_MP_GET_BUFFER_REQUEST:
    case PARTITION_MP_RETURN_BUFFER_REQUEST:
      break;
 
  }
}
 
/*PAGE
 *
 *
 *  _Partition_MP_Process_packet
 *
 */
 
void _Partition_MP_Process_packet (
  rtems_packet_prefix  *the_packet_prefix
)
{
  Partition_MP_Packet *the_packet;
  Thread_Control      *the_thread;
  boolean              ignored;
 
  the_packet = (Partition_MP_Packet *) the_packet_prefix;
 
  switch ( the_packet->operation ) {
 
    case PARTITION_MP_ANNOUNCE_CREATE:
 
      ignored = _Objects_MP_Allocate_and_open(
                  &_Partition_Information,
                  the_packet->name,
                  the_packet->Prefix.id,
                  TRUE
                );
 
      _MPCI_Return_packet( the_packet_prefix );
      break;
 
    case PARTITION_MP_ANNOUNCE_DELETE:
 
      _Objects_MP_Close( &_Partition_Information, the_packet->Prefix.id );
 
      _MPCI_Return_packet( the_packet_prefix );
      break;
 
    case PARTITION_MP_EXTRACT_PROXY:
 
      the_thread = _Thread_MP_Find_proxy( the_packet->proxy_id );
 
      if ( ! _Thread_Is_null( the_thread ) )
         _Thread_queue_Extract( the_thread->Wait.queue, the_thread );
 
      _MPCI_Return_packet( the_packet_prefix );
      break;
 
    case PARTITION_MP_GET_BUFFER_REQUEST:
 
      the_packet->Prefix.return_code = rtems_partition_get_buffer(
        the_packet->Prefix.id,
        &the_packet->buffer
      );
 
      _Partition_MP_Send_response_packet(
        PARTITION_MP_GET_BUFFER_RESPONSE,
        the_packet->Prefix.id,
        _Thread_Executing
      );
      break;
 
    case PARTITION_MP_GET_BUFFER_RESPONSE:
 
      the_thread = _MPCI_Process_response( the_packet_prefix );
 
      *(void **)the_thread->Wait.return_argument = the_packet->buffer;
 
      _MPCI_Return_packet( the_packet_prefix );
      break;
 
    case PARTITION_MP_RETURN_BUFFER_REQUEST:
 
      the_packet->Prefix.return_code = rtems_partition_return_buffer(
        the_packet->Prefix.id,
        the_packet->buffer
      );
 
      _Partition_MP_Send_response_packet(
        PARTITION_MP_RETURN_BUFFER_RESPONSE,
        the_packet->Prefix.id,
        _Thread_Executing
      );
      break;
 
    case PARTITION_MP_RETURN_BUFFER_RESPONSE:
 
      the_thread = _MPCI_Process_response( the_packet_prefix );
 
      _MPCI_Return_packet( the_packet_prefix );
      break;
 
  }
}
 
/*PAGE
 *
 *  _Partition_MP_Send_object_was_deleted
 *
 *  This routine is not needed by the Partition since a partition
 *  cannot be deleted when buffers are in use.
 *
 */
 
/*PAGE
 *
 *  _Partition_MP_Send_extract_proxy
 *
 */
 
void _Partition_MP_Send_extract_proxy (
  Thread_Control *the_thread
)
{
  _Partition_MP_Send_process_packet(
    PARTITION_MP_EXTRACT_PROXY,
    the_thread->Wait.id,
    (rtems_name) 0,
    the_thread->Object.id
  );
 
}
 
/*PAGE
 *
 *  _Partition_MP_Get_packet
 *
 */
 
Partition_MP_Packet *_Partition_MP_Get_packet ( void )
{
  return ( (Partition_MP_Packet *) _MPCI_Get_packet() );
}
 
/* end of file */

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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [rtems/] [src/] [partmp.c] - Blame information for rev 1780

Line No.	Rev	Author	Line
1	1026	ivang	`/*`
2			`* Multiprocessing Support for the Partition Manager`
3			`*`
4			`*`
5			`* COPYRIGHT (c) 1989-1999.`
6			`* On-Line Applications Research Corporation (OAR).`
7			`*`
8			`* The license and distribution terms for this file may be`
9			`* found in the file LICENSE in this distribution or at`
10			`* http://www.OARcorp.com/rtems/license.html.`
11			`*`
12			`* partmp.c,v 1.11 1999/11/17 17:50:27 joel Exp`
13			`*/`
14
15			`#include <rtems/system.h>`
16			`#include <rtems/rtems/status.h>`
17			`#include <rtems/score/mpci.h>`
18			`#include <rtems/score/mppkt.h>`
19			`#include <rtems/score/object.h>`
20			`#include <rtems/rtems/options.h>`
21			`#include <rtems/rtems/part.h>`
22			`#include <rtems/score/thread.h>`
23			`#include <rtems/rtems/support.h>`
24
25			`/*PAGE`
26			`*`
27			`* _Partition_MP_Send_process_packet`
28			`*`
29			`*/`
30
31			`void _Partition_MP_Send_process_packet (`
32			`Partition_MP_Remote_operations operation,`
33			`Objects_Id partition_id,`
34			`rtems_name name,`
35			`Objects_Id proxy_id`
36			`)`
37			`{`
38			`Partition_MP_Packet *the_packet;`
39			`unsigned32 node;`
40
41			`switch ( operation ) {`
42
43			`case PARTITION_MP_ANNOUNCE_CREATE:`
44			`case PARTITION_MP_ANNOUNCE_DELETE:`
45			`case PARTITION_MP_EXTRACT_PROXY:`
46
47			`the_packet = _Partition_MP_Get_packet();`
48			`the_packet->Prefix.the_class = MP_PACKET_PARTITION;`
49			`the_packet->Prefix.length = sizeof ( Partition_MP_Packet );`
50			`the_packet->Prefix.to_convert = sizeof ( Partition_MP_Packet );`
51			`the_packet->operation = operation;`
52			`the_packet->Prefix.id = partition_id;`
53			`the_packet->name = name;`
54			`the_packet->proxy_id = proxy_id;`
55
56			`if ( operation == PARTITION_MP_EXTRACT_PROXY )`
57			`node = rtems_get_node( partition_id );`
58			`else`
59			`node = MPCI_ALL_NODES;`
60
61			`_MPCI_Send_process_packet( node, &the_packet->Prefix );`
62			`break;`
63
64			`case PARTITION_MP_GET_BUFFER_REQUEST:`
65			`case PARTITION_MP_GET_BUFFER_RESPONSE:`
66			`case PARTITION_MP_RETURN_BUFFER_REQUEST:`
67			`case PARTITION_MP_RETURN_BUFFER_RESPONSE:`
68			`break;`
69			`}`
70			`}`
71
72			`/*PAGE`
73			`*`
74			`* _Partition_MP_Send_request_packet`
75			`*`
76			`*/`
77
78			`rtems_status_code _Partition_MP_Send_request_packet (`
79			`Partition_MP_Remote_operations operation,`
80			`Objects_Id partition_id,`
81			`void *buffer`
82			`)`
83			`{`
84			`Partition_MP_Packet *the_packet;`
85
86			`switch ( operation ) {`
87
88			`case PARTITION_MP_GET_BUFFER_REQUEST:`
89			`case PARTITION_MP_RETURN_BUFFER_REQUEST:`
90
91			`the_packet = _Partition_MP_Get_packet();`
92			`the_packet->Prefix.the_class = MP_PACKET_PARTITION;`
93			`the_packet->Prefix.length = sizeof ( Partition_MP_Packet );`
94			`the_packet->Prefix.to_convert = sizeof ( Partition_MP_Packet );`
95			`the_packet->operation = operation;`
96			`the_packet->Prefix.id = partition_id;`
97			`the_packet->buffer = buffer;`
98
99			`return`
100			`_MPCI_Send_request_packet(`
101			`rtems_get_node( partition_id ),`
102			`&the_packet->Prefix,`
103			`STATES_READY /* Not used */`
104			`);`
105
106			`break;`
107
108			`case PARTITION_MP_ANNOUNCE_CREATE:`
109			`case PARTITION_MP_ANNOUNCE_DELETE:`
110			`case PARTITION_MP_EXTRACT_PROXY:`
111			`case PARTITION_MP_GET_BUFFER_RESPONSE:`
112			`case PARTITION_MP_RETURN_BUFFER_RESPONSE:`
113			`break;`
114
115			`}`
116			`/*`
117			`* The following line is included to satisfy compilers which`
118			`* produce warnings when a function does not end with a return.`
119			`*/`
120			`return RTEMS_SUCCESSFUL;`
121			`}`
122
123			`/*PAGE`
124			`*`
125			`* _Partition_MP_Send_response_packet`
126			`*`
127			`*/`
128
129			`void _Partition_MP_Send_response_packet (`
130			`Partition_MP_Remote_operations operation,`
131			`Objects_Id partition_id,`
132			`Thread_Control *the_thread`
133			`)`
134			`{`
135			`Partition_MP_Packet *the_packet;`
136
137			`switch ( operation ) {`
138
139			`case PARTITION_MP_GET_BUFFER_RESPONSE:`
140			`case PARTITION_MP_RETURN_BUFFER_RESPONSE:`
141
142			`the_packet = ( Partition_MP_Packet *) the_thread->receive_packet;`
143
144			`/*`
145			`* The packet being returned already contains the class, length, and`
146			`* to_convert fields, therefore they are not set in this routine.`
147			`*/`
148			`the_packet->operation = operation;`
149			`the_packet->Prefix.id = the_packet->Prefix.source_tid;`
150
151			`_MPCI_Send_response_packet(`
152			`rtems_get_node( the_packet->Prefix.source_tid ),`
153			`&the_packet->Prefix`
154			`);`
155			`break;`
156
157			`case PARTITION_MP_ANNOUNCE_CREATE:`
158			`case PARTITION_MP_ANNOUNCE_DELETE:`
159			`case PARTITION_MP_EXTRACT_PROXY:`
160			`case PARTITION_MP_GET_BUFFER_REQUEST:`
161			`case PARTITION_MP_RETURN_BUFFER_REQUEST:`
162			`break;`
163
164			`}`
165			`}`
166
167			`/*PAGE`
168			`*`
169			`*`
170			`* _Partition_MP_Process_packet`
171			`*`
172			`*/`
173
174			`void _Partition_MP_Process_packet (`
175			`rtems_packet_prefix *the_packet_prefix`
176			`)`
177			`{`
178			`Partition_MP_Packet *the_packet;`
179			`Thread_Control *the_thread;`
180			`boolean ignored;`
181
182			`the_packet = (Partition_MP_Packet *) the_packet_prefix;`
183
184			`switch ( the_packet->operation ) {`
185
186			`case PARTITION_MP_ANNOUNCE_CREATE:`
187
188			`ignored = _Objects_MP_Allocate_and_open(`
189			`&_Partition_Information,`
190			`the_packet->name,`
191			`the_packet->Prefix.id,`
192			`TRUE`
193			`);`
194
195			`_MPCI_Return_packet( the_packet_prefix );`
196			`break;`
197
198			`case PARTITION_MP_ANNOUNCE_DELETE:`
199
200			`_Objects_MP_Close( &_Partition_Information, the_packet->Prefix.id );`
201
202			`_MPCI_Return_packet( the_packet_prefix );`
203			`break;`
204
205			`case PARTITION_MP_EXTRACT_PROXY:`
206
207			`the_thread = _Thread_MP_Find_proxy( the_packet->proxy_id );`
208
209			`if ( ! _Thread_Is_null( the_thread ) )`
210			`_Thread_queue_Extract( the_thread->Wait.queue, the_thread );`
211
212			`_MPCI_Return_packet( the_packet_prefix );`
213			`break;`
214
215			`case PARTITION_MP_GET_BUFFER_REQUEST:`
216
217			`the_packet->Prefix.return_code = rtems_partition_get_buffer(`
218			`the_packet->Prefix.id,`
219			`&the_packet->buffer`
220			`);`
221
222			`_Partition_MP_Send_response_packet(`
223			`PARTITION_MP_GET_BUFFER_RESPONSE,`
224			`the_packet->Prefix.id,`
225			`_Thread_Executing`
226			`);`
227			`break;`
228
229			`case PARTITION_MP_GET_BUFFER_RESPONSE:`
230
231			`the_thread = _MPCI_Process_response( the_packet_prefix );`
232
233			`(void *)the_thread->Wait.return_argument = the_packet->buffer;`
234
235			`_MPCI_Return_packet( the_packet_prefix );`
236			`break;`
237
238			`case PARTITION_MP_RETURN_BUFFER_REQUEST:`
239
240			`the_packet->Prefix.return_code = rtems_partition_return_buffer(`
241			`the_packet->Prefix.id,`
242			`the_packet->buffer`
243			`);`
244
245			`_Partition_MP_Send_response_packet(`
246			`PARTITION_MP_RETURN_BUFFER_RESPONSE,`
247			`the_packet->Prefix.id,`
248			`_Thread_Executing`
249			`);`
250			`break;`
251
252			`case PARTITION_MP_RETURN_BUFFER_RESPONSE:`
253
254			`the_thread = _MPCI_Process_response( the_packet_prefix );`
255
256			`_MPCI_Return_packet( the_packet_prefix );`
257			`break;`
258
259			`}`
260			`}`
261
262			`/*PAGE`
263			`*`
264			`* _Partition_MP_Send_object_was_deleted`
265			`*`
266			`* This routine is not needed by the Partition since a partition`
267			`* cannot be deleted when buffers are in use.`
268			`*`
269			`*/`
270
271			`/*PAGE`
272			`*`
273			`* _Partition_MP_Send_extract_proxy`
274			`*`
275			`*/`
276
277			`void _Partition_MP_Send_extract_proxy (`
278			`Thread_Control *the_thread`
279			`)`
280			`{`
281			`_Partition_MP_Send_process_packet(`
282			`PARTITION_MP_EXTRACT_PROXY,`
283			`the_thread->Wait.id,`
284			`(rtems_name) 0,`
285			`the_thread->Object.id`
286			`);`
287
288			`}`
289
290			`/*PAGE`
291			`*`
292			`* _Partition_MP_Get_packet`
293			`*`
294			`*/`
295
296			`Partition_MP_Packet *_Partition_MP_Get_packet ( void )`
297			`{`
298			`return ( (Partition_MP_Packet *) _MPCI_Get_packet() );`
299			`}`
300
301			`/* end of file */`