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12e364b9 KC |
1 | /* visorchipset_main.c |
2 | * | |
f6d0c1e6 | 3 | * Copyright (C) 2010 - 2013 UNISYS CORPORATION |
12e364b9 KC |
4 | * All rights reserved. |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or (at | |
9 | * your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
14 | * NON INFRINGEMENT. See the GNU General Public License for more | |
15 | * details. | |
16 | */ | |
17 | ||
18 | #include "globals.h" | |
19 | #include "controlvm.h" | |
20 | #include "visorchipset.h" | |
21 | #include "procobjecttree.h" | |
22 | #include "visorchannel.h" | |
23 | #include "periodic_work.h" | |
24 | #include "testing.h" | |
25 | #include "file.h" | |
26 | #include "parser.h" | |
27 | #include "uniklog.h" | |
28 | #include "uisutils.h" | |
12e364b9 KC |
29 | #include "controlvmcompletionstatus.h" |
30 | #include "guestlinuxdebug.h" | |
12e364b9 KC |
31 | |
32 | #include <linux/nls.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/platform_device.h> | |
90addb02 | 35 | #include <linux/uuid.h> |
12e364b9 KC |
36 | |
37 | #define CURRENT_FILE_PC VISOR_CHIPSET_PC_visorchipset_main_c | |
38 | #define TEST_VNIC_PHYSITF "eth0" /* physical network itf for | |
39 | * vnic loopback test */ | |
40 | #define TEST_VNIC_SWITCHNO 1 | |
41 | #define TEST_VNIC_BUSNO 9 | |
42 | ||
43 | #define MAX_NAME_SIZE 128 | |
44 | #define MAX_IP_SIZE 50 | |
45 | #define MAXOUTSTANDINGCHANNELCOMMAND 256 | |
46 | #define POLLJIFFIES_CONTROLVMCHANNEL_FAST 1 | |
47 | #define POLLJIFFIES_CONTROLVMCHANNEL_SLOW 100 | |
48 | ||
49 | /* When the controlvm channel is idle for at least MIN_IDLE_SECONDS, | |
50 | * we switch to slow polling mode. As soon as we get a controlvm | |
51 | * message, we switch back to fast polling mode. | |
52 | */ | |
53 | #define MIN_IDLE_SECONDS 10 | |
bd5b9b32 KC |
54 | static ulong Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; |
55 | static ulong Most_recent_message_jiffies; /* when we got our last | |
56 | * controlvm message */ | |
12e364b9 KC |
57 | static inline char * |
58 | NONULLSTR(char *s) | |
59 | { | |
60 | if (s) | |
61 | return s; | |
62 | else | |
63 | return ""; | |
64 | } | |
65 | ||
66 | static int serverregistered; | |
67 | static int clientregistered; | |
68 | ||
69 | #define MAX_CHIPSET_EVENTS 2 | |
70 | static U8 chipset_events[MAX_CHIPSET_EVENTS] = { 0, 0 }; | |
71 | ||
72 | static struct delayed_work Periodic_controlvm_work; | |
73 | static struct workqueue_struct *Periodic_controlvm_workqueue; | |
bd5b9b32 | 74 | static DEFINE_SEMAPHORE(NotifierLock); |
12e364b9 KC |
75 | |
76 | typedef struct { | |
77 | CONTROLVM_MESSAGE message; | |
78 | unsigned int crc; | |
79 | } MESSAGE_ENVELOPE; | |
80 | ||
81 | static CONTROLVM_MESSAGE_HEADER g_DiagMsgHdr; | |
82 | static CONTROLVM_MESSAGE_HEADER g_ChipSetMsgHdr; | |
83 | static CONTROLVM_MESSAGE_HEADER g_DelDumpMsgHdr; | |
90addb02 | 84 | static const uuid_le UltraDiagPoolChannelProtocolGuid = |
12e364b9 KC |
85 | ULTRA_DIAG_POOL_CHANNEL_PROTOCOL_GUID; |
86 | /* 0xffffff is an invalid Bus/Device number */ | |
87 | static ulong g_diagpoolBusNo = 0xffffff; | |
88 | static ulong g_diagpoolDevNo = 0xffffff; | |
89 | static CONTROLVM_MESSAGE_PACKET g_DeviceChangeStatePacket; | |
90 | ||
91 | /* Only VNIC and VHBA channels are sent to visorclientbus (aka | |
92 | * "visorhackbus") | |
93 | */ | |
94 | #define FOR_VISORHACKBUS(channel_type_guid) \ | |
90addb02 BR |
95 | (((uuid_le_cmp(channel_type_guid, UltraVnicChannelProtocolGuid) == 0)\ |
96 | || (uuid_le_cmp(channel_type_guid, UltraVhbaChannelProtocolGuid) == 0))) | |
12e364b9 KC |
97 | #define FOR_VISORBUS(channel_type_guid) (!(FOR_VISORHACKBUS(channel_type_guid))) |
98 | ||
99 | #define is_diagpool_channel(channel_type_guid) \ | |
90addb02 | 100 | (uuid_le_cmp(channel_type_guid, UltraDiagPoolChannelProtocolGuid) == 0) |
12e364b9 KC |
101 | |
102 | typedef enum { | |
103 | PARTPROP_invalid, | |
104 | PARTPROP_name, | |
105 | PARTPROP_description, | |
106 | PARTPROP_handle, | |
107 | PARTPROP_busNumber, | |
108 | /* add new properties above, but don't forget to change | |
109 | * InitPartitionProperties() and show_partition_property() also... | |
110 | */ | |
111 | PARTPROP_last | |
112 | } PARTITION_property; | |
113 | static const char *PartitionTypeNames[] = { "partition", NULL }; | |
114 | ||
115 | static char *PartitionPropertyNames[PARTPROP_last + 1]; | |
116 | static void | |
117 | InitPartitionProperties(void) | |
118 | { | |
119 | char **p = PartitionPropertyNames; | |
120 | p[PARTPROP_invalid] = ""; | |
121 | p[PARTPROP_name] = "name"; | |
122 | p[PARTPROP_description] = "description"; | |
123 | p[PARTPROP_handle] = "handle"; | |
124 | p[PARTPROP_busNumber] = "busNumber"; | |
125 | p[PARTPROP_last] = NULL; | |
126 | } | |
127 | ||
128 | typedef enum { | |
129 | CTLVMPROP_invalid, | |
130 | CTLVMPROP_physAddr, | |
131 | CTLVMPROP_controlChannelAddr, | |
132 | CTLVMPROP_controlChannelBytes, | |
133 | CTLVMPROP_sparBootPart, | |
134 | CTLVMPROP_sparStoragePart, | |
135 | CTLVMPROP_livedumpLength, | |
136 | CTLVMPROP_livedumpCrc32, | |
137 | /* add new properties above, but don't forget to change | |
138 | * InitControlVmProperties() show_controlvm_property() also... | |
139 | */ | |
140 | CTLVMPROP_last | |
141 | } CONTROLVM_property; | |
142 | ||
143 | static const char *ControlVmTypeNames[] = { "controlvm", NULL }; | |
144 | ||
145 | static char *ControlVmPropertyNames[CTLVMPROP_last + 1]; | |
146 | static void | |
147 | InitControlVmProperties(void) | |
148 | { | |
149 | char **p = ControlVmPropertyNames; | |
150 | p[CTLVMPROP_invalid] = ""; | |
151 | p[CTLVMPROP_physAddr] = "physAddr"; | |
152 | p[CTLVMPROP_controlChannelAddr] = "controlChannelAddr"; | |
153 | p[CTLVMPROP_controlChannelBytes] = "controlChannelBytes"; | |
154 | p[CTLVMPROP_sparBootPart] = "spar_boot_part"; | |
155 | p[CTLVMPROP_sparStoragePart] = "spar_storage_part"; | |
156 | p[CTLVMPROP_livedumpLength] = "livedumpLength"; | |
157 | p[CTLVMPROP_livedumpCrc32] = "livedumpCrc32"; | |
158 | p[CTLVMPROP_last] = NULL; | |
159 | } | |
160 | ||
161 | static MYPROCOBJECT *ControlVmObject; | |
162 | static MYPROCTYPE *PartitionType; | |
163 | static MYPROCTYPE *ControlVmType; | |
164 | ||
165 | #define VISORCHIPSET_DIAG_PROC_ENTRY_FN "diagdump" | |
166 | static struct proc_dir_entry *diag_proc_dir; | |
167 | ||
168 | #define VISORCHIPSET_CHIPSET_PROC_ENTRY_FN "chipsetready" | |
169 | static struct proc_dir_entry *chipset_proc_dir; | |
170 | ||
171 | #define VISORCHIPSET_PARAHOTPLUG_PROC_ENTRY_FN "parahotplug" | |
172 | static struct proc_dir_entry *parahotplug_proc_dir; | |
173 | ||
174 | static LIST_HEAD(BusInfoList); | |
175 | static LIST_HEAD(DevInfoList); | |
176 | ||
177 | static struct proc_dir_entry *ProcDir; | |
178 | static VISORCHANNEL *ControlVm_channel; | |
179 | ||
180 | static ssize_t visorchipset_proc_read_writeonly(struct file *file, | |
181 | char __user *buf, | |
182 | size_t len, loff_t *offset); | |
183 | static ssize_t proc_read_installer(struct file *file, char __user *buf, | |
184 | size_t len, loff_t *offset); | |
185 | static ssize_t proc_write_installer(struct file *file, | |
186 | const char __user *buffer, | |
187 | size_t count, loff_t *ppos); | |
188 | static ssize_t proc_read_toolaction(struct file *file, char __user *buf, | |
189 | size_t len, loff_t *offset); | |
190 | static ssize_t proc_write_toolaction(struct file *file, | |
191 | const char __user *buffer, | |
192 | size_t count, loff_t *ppos); | |
193 | static ssize_t proc_read_bootToTool(struct file *file, char __user *buf, | |
194 | size_t len, loff_t *offset); | |
195 | static ssize_t proc_write_bootToTool(struct file *file, | |
196 | const char __user *buffer, | |
197 | size_t count, loff_t *ppos); | |
198 | static const struct file_operations proc_installer_fops = { | |
199 | .read = proc_read_installer, | |
200 | .write = proc_write_installer, | |
201 | }; | |
202 | ||
203 | static const struct file_operations proc_toolaction_fops = { | |
204 | .read = proc_read_toolaction, | |
205 | .write = proc_write_toolaction, | |
206 | }; | |
207 | ||
208 | static const struct file_operations proc_bootToTool_fops = { | |
209 | .read = proc_read_bootToTool, | |
210 | .write = proc_write_bootToTool, | |
211 | }; | |
212 | ||
213 | typedef struct { | |
bd5b9b32 | 214 | U8 __iomem *ptr; /* pointer to base address of payload pool */ |
12e364b9 KC |
215 | U64 offset; /* offset from beginning of controlvm |
216 | * channel to beginning of payload * pool */ | |
217 | U32 bytes; /* number of bytes in payload pool */ | |
218 | } CONTROLVM_PAYLOAD_INFO; | |
219 | ||
220 | /* Manages the request payload in the controlvm channel */ | |
221 | static CONTROLVM_PAYLOAD_INFO ControlVm_payload_info; | |
222 | ||
223 | static pCHANNEL_HEADER Test_Vnic_channel; | |
224 | ||
225 | typedef struct { | |
226 | CONTROLVM_MESSAGE_HEADER Dumpcapture_header; | |
227 | CONTROLVM_MESSAGE_HEADER Gettextdump_header; | |
228 | CONTROLVM_MESSAGE_HEADER Dumpcomplete_header; | |
229 | BOOL Gettextdump_outstanding; | |
230 | u32 crc32; | |
231 | ulong length; | |
232 | atomic_t buffers_in_use; | |
233 | ulong destination; | |
234 | } LIVEDUMP_INFO; | |
235 | /* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE / | |
236 | * CONTROLVM_DUMP_GETTEXTDUMP / CONTROLVM_DUMP_COMPLETE conversation. | |
237 | */ | |
238 | static LIVEDUMP_INFO LiveDump_info; | |
239 | ||
240 | /* The following globals are used to handle the scenario where we are unable to | |
241 | * offload the payload from a controlvm message due to memory requirements. In | |
242 | * this scenario, we simply stash the controlvm message, then attempt to | |
243 | * process it again the next time controlvm_periodic_work() runs. | |
244 | */ | |
245 | static CONTROLVM_MESSAGE ControlVm_Pending_Msg; | |
246 | static BOOL ControlVm_Pending_Msg_Valid = FALSE; | |
247 | ||
248 | /* Pool of struct putfile_buffer_entry, for keeping track of pending (incoming) | |
249 | * TRANSMIT_FILE PutFile payloads. | |
250 | */ | |
251 | static struct kmem_cache *Putfile_buffer_list_pool; | |
252 | static const char Putfile_buffer_list_pool_name[] = | |
253 | "controlvm_putfile_buffer_list_pool"; | |
254 | ||
255 | /* This identifies a data buffer that has been received via a controlvm messages | |
256 | * in a remote --> local CONTROLVM_TRANSMIT_FILE conversation. | |
257 | */ | |
258 | struct putfile_buffer_entry { | |
259 | struct list_head next; /* putfile_buffer_entry list */ | |
260 | PARSER_CONTEXT *parser_ctx; /* points to buffer containing input data */ | |
261 | }; | |
262 | ||
263 | /* List of struct putfile_request *, via next_putfile_request member. | |
264 | * Each entry in this list identifies an outstanding TRANSMIT_FILE | |
265 | * conversation. | |
266 | */ | |
267 | static LIST_HEAD(Putfile_request_list); | |
268 | ||
269 | /* This describes a buffer and its current state of transfer (e.g., how many | |
270 | * bytes have already been supplied as putfile data, and how many bytes are | |
271 | * remaining) for a putfile_request. | |
272 | */ | |
273 | struct putfile_active_buffer { | |
274 | /* a payload from a controlvm message, containing a file data buffer */ | |
275 | PARSER_CONTEXT *parser_ctx; | |
276 | /* points within data area of parser_ctx to next byte of data */ | |
277 | u8 *pnext; | |
278 | /* # bytes left from <pnext> to the end of this data buffer */ | |
279 | size_t bytes_remaining; | |
280 | }; | |
281 | ||
282 | #define PUTFILE_REQUEST_SIG 0x0906101302281211 | |
283 | /* This identifies a single remote --> local CONTROLVM_TRANSMIT_FILE | |
284 | * conversation. Structs of this type are dynamically linked into | |
285 | * <Putfile_request_list>. | |
286 | */ | |
287 | struct putfile_request { | |
288 | u64 sig; /* PUTFILE_REQUEST_SIG */ | |
289 | ||
290 | /* header from original TransmitFile request */ | |
291 | CONTROLVM_MESSAGE_HEADER controlvm_header; | |
292 | u64 file_request_number; /* from original TransmitFile request */ | |
293 | ||
294 | /* link to next struct putfile_request */ | |
295 | struct list_head next_putfile_request; | |
296 | ||
297 | /* most-recent sequence number supplied via a controlvm message */ | |
298 | u64 data_sequence_number; | |
299 | ||
300 | /* head of putfile_buffer_entry list, which describes the data to be | |
301 | * supplied as putfile data; | |
302 | * - this list is added to when controlvm messages come in that supply | |
303 | * file data | |
304 | * - this list is removed from via the hotplug program that is actually | |
305 | * consuming these buffers to write as file data */ | |
306 | struct list_head input_buffer_list; | |
307 | spinlock_t req_list_lock; /* lock for input_buffer_list */ | |
308 | ||
309 | /* waiters for input_buffer_list to go non-empty */ | |
310 | wait_queue_head_t input_buffer_wq; | |
311 | ||
312 | /* data not yet read within current putfile_buffer_entry */ | |
313 | struct putfile_active_buffer active_buf; | |
314 | ||
315 | /* <0 = failed, 0 = in-progress, >0 = successful; */ | |
316 | /* note that this must be set with req_list_lock, and if you set <0, */ | |
317 | /* it is your responsibility to also free up all of the other objects */ | |
318 | /* in this struct (like input_buffer_list, active_buf.parser_ctx) */ | |
319 | /* before releasing the lock */ | |
320 | int completion_status; | |
321 | }; | |
322 | ||
bd5b9b32 | 323 | static atomic_t Visorchipset_cache_buffers_in_use = ATOMIC_INIT(0); |
12e364b9 KC |
324 | |
325 | struct parahotplug_request { | |
326 | struct list_head list; | |
327 | int id; | |
328 | unsigned long expiration; | |
329 | CONTROLVM_MESSAGE msg; | |
330 | }; | |
331 | ||
332 | static LIST_HEAD(Parahotplug_request_list); | |
333 | static DEFINE_SPINLOCK(Parahotplug_request_list_lock); /* lock for above */ | |
334 | static void parahotplug_process_list(void); | |
335 | ||
336 | /* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE / | |
337 | * CONTROLVM_REPORTEVENT. | |
338 | */ | |
339 | static VISORCHIPSET_BUSDEV_NOTIFIERS BusDev_Server_Notifiers; | |
340 | static VISORCHIPSET_BUSDEV_NOTIFIERS BusDev_Client_Notifiers; | |
341 | ||
342 | static void bus_create_response(ulong busNo, int response); | |
343 | static void bus_destroy_response(ulong busNo, int response); | |
344 | static void device_create_response(ulong busNo, ulong devNo, int response); | |
345 | static void device_destroy_response(ulong busNo, ulong devNo, int response); | |
346 | static void device_resume_response(ulong busNo, ulong devNo, int response); | |
347 | ||
348 | static VISORCHIPSET_BUSDEV_RESPONDERS BusDev_Responders = { | |
349 | .bus_create = bus_create_response, | |
350 | .bus_destroy = bus_destroy_response, | |
351 | .device_create = device_create_response, | |
352 | .device_destroy = device_destroy_response, | |
927c7927 | 353 | .device_pause = visorchipset_device_pause_response, |
12e364b9 KC |
354 | .device_resume = device_resume_response, |
355 | }; | |
356 | ||
357 | /* info for /dev/visorchipset */ | |
358 | static dev_t MajorDev = -1; /**< indicates major num for device */ | |
359 | ||
360 | /* /sys/devices/platform/visorchipset */ | |
361 | static struct platform_device Visorchipset_platform_device = { | |
362 | .name = "visorchipset", | |
363 | .id = -1, | |
364 | }; | |
365 | ||
366 | /* Function prototypes */ | |
367 | static void controlvm_respond(CONTROLVM_MESSAGE_HEADER *msgHdr, int response); | |
368 | static void controlvm_respond_chipset_init(CONTROLVM_MESSAGE_HEADER *msgHdr, | |
369 | int response, | |
370 | ULTRA_CHIPSET_FEATURE features); | |
371 | static void controlvm_respond_physdev_changestate(CONTROLVM_MESSAGE_HEADER * | |
372 | msgHdr, int response, | |
373 | ULTRA_SEGMENT_STATE state); | |
374 | ||
375 | static void | |
376 | show_partition_property(struct seq_file *f, void *ctx, int property) | |
377 | { | |
378 | VISORCHIPSET_BUS_INFO *info = (VISORCHIPSET_BUS_INFO *) (ctx); | |
379 | ||
380 | switch (property) { | |
381 | case PARTPROP_name: | |
382 | seq_printf(f, "%s\n", NONULLSTR(info->name)); | |
383 | break; | |
384 | case PARTPROP_description: | |
385 | seq_printf(f, "%s\n", NONULLSTR(info->description)); | |
386 | break; | |
387 | case PARTPROP_handle: | |
388 | seq_printf(f, "0x%-16.16Lx\n", info->partitionHandle); | |
389 | break; | |
390 | case PARTPROP_busNumber: | |
391 | seq_printf(f, "%d\n", info->busNo); | |
392 | break; | |
393 | default: | |
394 | seq_printf(f, "(%d??)\n", property); | |
395 | break; | |
396 | } | |
397 | } | |
398 | ||
399 | static void | |
400 | show_controlvm_property(struct seq_file *f, void *ctx, int property) | |
401 | { | |
402 | /* Note: ctx is not needed since we only have 1 controlvm channel */ | |
403 | switch (property) { | |
404 | case CTLVMPROP_physAddr: | |
405 | if (ControlVm_channel == NULL) | |
406 | seq_puts(f, "0x0\n"); | |
407 | else | |
408 | seq_printf(f, "0x%-16.16Lx\n", | |
409 | visorchannel_get_physaddr | |
410 | (ControlVm_channel)); | |
411 | break; | |
412 | case CTLVMPROP_controlChannelAddr: | |
413 | if (ControlVm_channel == NULL) | |
414 | seq_puts(f, "0x0\n"); | |
415 | else { | |
416 | GUEST_PHYSICAL_ADDRESS addr = 0; | |
417 | visorchannel_read(ControlVm_channel, | |
418 | offsetof | |
419 | (ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
420 | gpControlChannel), &addr, | |
421 | sizeof(addr)); | |
422 | seq_printf(f, "0x%-16.16Lx\n", (u64) (addr)); | |
423 | } | |
424 | break; | |
425 | case CTLVMPROP_controlChannelBytes: | |
426 | if (ControlVm_channel == NULL) | |
427 | seq_puts(f, "0x0\n"); | |
428 | else { | |
429 | U32 bytes = 0; | |
430 | visorchannel_read(ControlVm_channel, | |
431 | offsetof | |
432 | (ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
433 | ControlChannelBytes), &bytes, | |
434 | sizeof(bytes)); | |
435 | seq_printf(f, "%lu\n", (ulong) (bytes)); | |
436 | } | |
437 | break; | |
438 | case CTLVMPROP_sparBootPart: | |
439 | seq_puts(f, "0:0:0:0/1\n"); | |
440 | break; | |
441 | case CTLVMPROP_sparStoragePart: | |
442 | seq_puts(f, "0:0:0:0/2\n"); | |
443 | break; | |
444 | case CTLVMPROP_livedumpLength: | |
445 | seq_printf(f, "%lu\n", LiveDump_info.length); | |
446 | break; | |
447 | case CTLVMPROP_livedumpCrc32: | |
448 | seq_printf(f, "%lu\n", (ulong) LiveDump_info.crc32); | |
449 | break; | |
450 | default: | |
451 | seq_printf(f, "(%d??)\n", property); | |
452 | break; | |
453 | } | |
454 | } | |
455 | ||
456 | static void | |
457 | proc_Init(void) | |
458 | { | |
459 | if (ProcDir == NULL) { | |
460 | ProcDir = proc_mkdir(MYDRVNAME, NULL); | |
461 | if (ProcDir == NULL) { | |
462 | LOGERR("failed to create /proc directory %s", | |
463 | MYDRVNAME); | |
464 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, | |
465 | POSTCODE_SEVERITY_ERR); | |
466 | } | |
467 | } | |
468 | } | |
469 | ||
470 | static void | |
471 | proc_DeInit(void) | |
472 | { | |
473 | if (ProcDir != NULL) | |
474 | remove_proc_entry(MYDRVNAME, NULL); | |
475 | ProcDir = NULL; | |
476 | } | |
477 | ||
478 | #if 0 | |
479 | static void | |
480 | testUnicode(void) | |
481 | { | |
482 | wchar_t unicodeString[] = { 'a', 'b', 'c', 0 }; | |
483 | char s[sizeof(unicodeString) * NLS_MAX_CHARSET_SIZE]; | |
484 | wchar_t unicode2[99]; | |
485 | ||
486 | /* NOTE: Either due to a bug, or feature I don't understand, the | |
487 | * kernel utf8_mbstowcs() and utf_wcstombs() do NOT copy the | |
488 | * trailed NUL byte!! REALLY!!!!! Arrrrgggghhhhh | |
489 | */ | |
490 | ||
491 | LOGINF("sizeof(wchar_t) = %d", sizeof(wchar_t)); | |
492 | LOGINF("utf8_wcstombs=%d", | |
493 | chrs = utf8_wcstombs(s, unicodeString, sizeof(s))); | |
494 | if (chrs >= 0) | |
495 | s[chrs] = '\0'; /* GRRRRRRRR */ | |
496 | LOGINF("s='%s'", s); | |
497 | LOGINF("utf8_mbstowcs=%d", chrs = utf8_mbstowcs(unicode2, s, 100)); | |
498 | if (chrs >= 0) | |
499 | unicode2[chrs] = 0; /* GRRRRRRRR */ | |
500 | if (memcmp(unicodeString, unicode2, sizeof(unicodeString)) == 0) | |
501 | LOGINF("strings match... good"); | |
502 | else | |
503 | LOGINF("strings did not match!!"); | |
504 | } | |
505 | #endif | |
506 | ||
507 | static void | |
508 | busInfo_clear(void *v) | |
509 | { | |
510 | VISORCHIPSET_BUS_INFO *p = (VISORCHIPSET_BUS_INFO *) (v); | |
511 | ||
512 | if (p->procObject) { | |
927c7927 | 513 | visor_proc_DestroyObject(p->procObject); |
12e364b9 KC |
514 | p->procObject = NULL; |
515 | } | |
516 | kfree(p->name); | |
517 | p->name = NULL; | |
518 | ||
519 | kfree(p->description); | |
520 | p->description = NULL; | |
521 | ||
522 | p->state.created = 0; | |
523 | memset(p, 0, sizeof(VISORCHIPSET_BUS_INFO)); | |
524 | } | |
525 | ||
526 | static void | |
527 | devInfo_clear(void *v) | |
528 | { | |
529 | VISORCHIPSET_DEVICE_INFO *p = (VISORCHIPSET_DEVICE_INFO *) (v); | |
530 | p->state.created = 0; | |
531 | memset(p, 0, sizeof(VISORCHIPSET_DEVICE_INFO)); | |
532 | } | |
533 | ||
534 | static U8 | |
535 | check_chipset_events(void) | |
536 | { | |
537 | int i; | |
538 | U8 send_msg = 1; | |
539 | /* Check events to determine if response should be sent */ | |
540 | for (i = 0; i < MAX_CHIPSET_EVENTS; i++) | |
541 | send_msg &= chipset_events[i]; | |
542 | return send_msg; | |
543 | } | |
544 | ||
545 | static void | |
546 | clear_chipset_events(void) | |
547 | { | |
548 | int i; | |
549 | /* Clear chipset_events */ | |
550 | for (i = 0; i < MAX_CHIPSET_EVENTS; i++) | |
551 | chipset_events[i] = 0; | |
552 | } | |
553 | ||
554 | void | |
555 | visorchipset_register_busdev_server(VISORCHIPSET_BUSDEV_NOTIFIERS *notifiers, | |
556 | VISORCHIPSET_BUSDEV_RESPONDERS *responders, | |
557 | ULTRA_VBUS_DEVICEINFO *driverInfo) | |
558 | { | |
559 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
560 | if (notifiers == NULL) { | |
561 | memset(&BusDev_Server_Notifiers, 0, | |
562 | sizeof(BusDev_Server_Notifiers)); | |
563 | serverregistered = 0; /* clear flag */ | |
564 | } else { | |
565 | BusDev_Server_Notifiers = *notifiers; | |
566 | serverregistered = 1; /* set flag */ | |
567 | } | |
568 | if (responders) | |
569 | *responders = BusDev_Responders; | |
570 | if (driverInfo) | |
571 | BusDeviceInfo_Init(driverInfo, "chipset", "visorchipset", | |
572 | VERSION, NULL, __DATE__, __TIME__); | |
573 | ||
574 | UNLOCKSEM(&NotifierLock); | |
575 | } | |
576 | EXPORT_SYMBOL_GPL(visorchipset_register_busdev_server); | |
577 | ||
578 | void | |
579 | visorchipset_register_busdev_client(VISORCHIPSET_BUSDEV_NOTIFIERS *notifiers, | |
580 | VISORCHIPSET_BUSDEV_RESPONDERS *responders, | |
581 | ULTRA_VBUS_DEVICEINFO *driverInfo) | |
582 | { | |
583 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
584 | if (notifiers == NULL) { | |
585 | memset(&BusDev_Client_Notifiers, 0, | |
586 | sizeof(BusDev_Client_Notifiers)); | |
587 | clientregistered = 0; /* clear flag */ | |
588 | } else { | |
589 | BusDev_Client_Notifiers = *notifiers; | |
590 | clientregistered = 1; /* set flag */ | |
591 | } | |
592 | if (responders) | |
593 | *responders = BusDev_Responders; | |
594 | if (driverInfo) | |
595 | BusDeviceInfo_Init(driverInfo, "chipset(bolts)", "visorchipset", | |
596 | VERSION, NULL, __DATE__, __TIME__); | |
597 | UNLOCKSEM(&NotifierLock); | |
598 | } | |
599 | EXPORT_SYMBOL_GPL(visorchipset_register_busdev_client); | |
600 | ||
601 | static void | |
602 | cleanup_controlvm_structures(void) | |
603 | { | |
e6b1ea77 DC |
604 | VISORCHIPSET_BUS_INFO *bi, *tmp_bi; |
605 | VISORCHIPSET_DEVICE_INFO *di, *tmp_di; | |
12e364b9 | 606 | |
e6b1ea77 | 607 | list_for_each_entry_safe(bi, tmp_bi, &BusInfoList, entry) { |
12e364b9 KC |
608 | busInfo_clear(bi); |
609 | list_del(&bi->entry); | |
610 | kfree(bi); | |
611 | } | |
612 | ||
e6b1ea77 | 613 | list_for_each_entry_safe(di, tmp_di, &DevInfoList, entry) { |
12e364b9 KC |
614 | devInfo_clear(di); |
615 | list_del(&di->entry); | |
616 | kfree(di); | |
617 | } | |
618 | } | |
619 | ||
620 | static void | |
621 | chipset_init(CONTROLVM_MESSAGE *inmsg) | |
622 | { | |
623 | static int chipset_inited; | |
624 | ULTRA_CHIPSET_FEATURE features = 0; | |
625 | int rc = CONTROLVM_RESP_SUCCESS; | |
626 | ||
627 | POSTCODE_LINUX_2(CHIPSET_INIT_ENTRY_PC, POSTCODE_SEVERITY_INFO); | |
628 | if (chipset_inited) { | |
629 | LOGERR("CONTROLVM_CHIPSET_INIT Failed: Already Done."); | |
22ad57ba KC |
630 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
631 | goto Away; | |
12e364b9 KC |
632 | } |
633 | chipset_inited = 1; | |
634 | POSTCODE_LINUX_2(CHIPSET_INIT_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
635 | ||
636 | /* Set features to indicate we support parahotplug (if Command | |
637 | * also supports it). */ | |
638 | features = | |
639 | inmsg->cmd.initChipset. | |
640 | features & ULTRA_CHIPSET_FEATURE_PARA_HOTPLUG; | |
641 | ||
642 | /* Set the "reply" bit so Command knows this is a | |
643 | * features-aware driver. */ | |
644 | features |= ULTRA_CHIPSET_FEATURE_REPLY; | |
645 | ||
646 | Away: | |
647 | if (rc < 0) | |
648 | cleanup_controlvm_structures(); | |
649 | if (inmsg->hdr.Flags.responseExpected) | |
650 | controlvm_respond_chipset_init(&inmsg->hdr, rc, features); | |
651 | } | |
652 | ||
653 | static void | |
654 | controlvm_init_response(CONTROLVM_MESSAGE *msg, | |
655 | CONTROLVM_MESSAGE_HEADER *msgHdr, int response) | |
656 | { | |
657 | memset(msg, 0, sizeof(CONTROLVM_MESSAGE)); | |
658 | memcpy(&msg->hdr, msgHdr, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
659 | msg->hdr.PayloadBytes = 0; | |
660 | msg->hdr.PayloadVmOffset = 0; | |
661 | msg->hdr.PayloadMaxBytes = 0; | |
662 | if (response < 0) { | |
663 | msg->hdr.Flags.failed = 1; | |
664 | msg->hdr.CompletionStatus = (U32) (-response); | |
665 | } | |
666 | } | |
667 | ||
668 | static void | |
669 | controlvm_respond(CONTROLVM_MESSAGE_HEADER *msgHdr, int response) | |
670 | { | |
671 | CONTROLVM_MESSAGE outmsg; | |
672 | if (!ControlVm_channel) | |
673 | return; | |
674 | controlvm_init_response(&outmsg, msgHdr, response); | |
675 | /* For DiagPool channel DEVICE_CHANGESTATE, we need to send | |
676 | * back the deviceChangeState structure in the packet. */ | |
677 | if (msgHdr->Id == CONTROLVM_DEVICE_CHANGESTATE | |
678 | && g_DeviceChangeStatePacket.deviceChangeState.busNo == | |
679 | g_diagpoolBusNo | |
680 | && g_DeviceChangeStatePacket.deviceChangeState.devNo == | |
681 | g_diagpoolDevNo) | |
682 | outmsg.cmd = g_DeviceChangeStatePacket; | |
683 | if (outmsg.hdr.Flags.testMessage == 1) { | |
684 | LOGINF("%s controlvm_msg=0x%x response=%d for test message", | |
685 | __func__, outmsg.hdr.Id, response); | |
686 | return; | |
687 | } | |
688 | if (!visorchannel_signalinsert(ControlVm_channel, | |
689 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
690 | LOGERR("signalinsert failed!"); | |
691 | return; | |
692 | } | |
693 | } | |
694 | ||
695 | static void | |
696 | controlvm_respond_chipset_init(CONTROLVM_MESSAGE_HEADER *msgHdr, int response, | |
697 | ULTRA_CHIPSET_FEATURE features) | |
698 | { | |
699 | CONTROLVM_MESSAGE outmsg; | |
700 | if (!ControlVm_channel) | |
701 | return; | |
702 | controlvm_init_response(&outmsg, msgHdr, response); | |
703 | outmsg.cmd.initChipset.features = features; | |
704 | if (!visorchannel_signalinsert(ControlVm_channel, | |
705 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
706 | LOGERR("signalinsert failed!"); | |
707 | return; | |
708 | } | |
709 | } | |
710 | ||
711 | static void | |
712 | controlvm_respond_physdev_changestate(CONTROLVM_MESSAGE_HEADER *msgHdr, | |
713 | int response, ULTRA_SEGMENT_STATE state) | |
714 | { | |
715 | CONTROLVM_MESSAGE outmsg; | |
716 | if (!ControlVm_channel) | |
717 | return; | |
718 | controlvm_init_response(&outmsg, msgHdr, response); | |
719 | outmsg.cmd.deviceChangeState.state = state; | |
720 | outmsg.cmd.deviceChangeState.flags.physicalDevice = 1; | |
721 | if (!visorchannel_signalinsert(ControlVm_channel, | |
722 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
723 | LOGERR("signalinsert failed!"); | |
724 | return; | |
725 | } | |
726 | } | |
727 | ||
728 | void | |
729 | visorchipset_save_message(CONTROLVM_MESSAGE *msg, CRASH_OBJ_TYPE type) | |
730 | { | |
731 | U32 localSavedCrashMsgOffset; | |
732 | U16 localSavedCrashMsgCount; | |
733 | ||
734 | /* get saved message count */ | |
735 | if (visorchannel_read(ControlVm_channel, | |
736 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
737 | SavedCrashMsgCount), | |
738 | &localSavedCrashMsgCount, sizeof(U16)) < 0) { | |
739 | LOGERR("failed to get Saved Message Count"); | |
740 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
741 | POSTCODE_SEVERITY_ERR); | |
742 | return; | |
743 | } | |
744 | ||
745 | if (localSavedCrashMsgCount != CONTROLVM_CRASHMSG_MAX) { | |
746 | LOGERR("Saved Message Count incorrect %d", | |
747 | localSavedCrashMsgCount); | |
748 | POSTCODE_LINUX_3(CRASH_DEV_COUNT_FAILURE_PC, | |
749 | localSavedCrashMsgCount, | |
750 | POSTCODE_SEVERITY_ERR); | |
751 | return; | |
752 | } | |
753 | ||
754 | /* get saved crash message offset */ | |
755 | if (visorchannel_read(ControlVm_channel, | |
756 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
757 | SavedCrashMsgOffset), | |
758 | &localSavedCrashMsgOffset, sizeof(U32)) < 0) { | |
759 | LOGERR("failed to get Saved Message Offset"); | |
760 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
761 | POSTCODE_SEVERITY_ERR); | |
762 | return; | |
763 | } | |
764 | ||
765 | if (type == CRASH_bus) { | |
766 | if (visorchannel_write(ControlVm_channel, | |
767 | localSavedCrashMsgOffset, | |
768 | msg, sizeof(CONTROLVM_MESSAGE)) < 0) { | |
769 | LOGERR("SAVE_MSG_BUS_FAILURE: Failed to write CrashCreateBusMsg!"); | |
770 | POSTCODE_LINUX_2(SAVE_MSG_BUS_FAILURE_PC, | |
771 | POSTCODE_SEVERITY_ERR); | |
772 | return; | |
773 | } | |
774 | } else { | |
775 | if (visorchannel_write(ControlVm_channel, | |
776 | localSavedCrashMsgOffset + | |
777 | sizeof(CONTROLVM_MESSAGE), msg, | |
778 | sizeof(CONTROLVM_MESSAGE)) < 0) { | |
779 | LOGERR("SAVE_MSG_DEV_FAILURE: Failed to write CrashCreateDevMsg!"); | |
780 | POSTCODE_LINUX_2(SAVE_MSG_DEV_FAILURE_PC, | |
781 | POSTCODE_SEVERITY_ERR); | |
782 | return; | |
783 | } | |
784 | } | |
785 | } | |
786 | EXPORT_SYMBOL_GPL(visorchipset_save_message); | |
787 | ||
788 | static void | |
789 | bus_responder(CONTROLVM_ID cmdId, ulong busNo, int response) | |
790 | { | |
791 | VISORCHIPSET_BUS_INFO *p = NULL; | |
792 | BOOL need_clear = FALSE; | |
793 | ||
794 | p = findbus(&BusInfoList, busNo); | |
795 | if (!p) { | |
796 | LOGERR("internal error busNo=%lu", busNo); | |
797 | return; | |
798 | } | |
799 | if (response < 0) { | |
800 | if ((cmdId == CONTROLVM_BUS_CREATE) && | |
801 | (response != (-CONTROLVM_RESP_ERROR_ALREADY_DONE))) | |
802 | /* undo the row we just created... */ | |
803 | delbusdevices(&DevInfoList, busNo); | |
804 | } else { | |
805 | if (cmdId == CONTROLVM_BUS_CREATE) | |
806 | p->state.created = 1; | |
807 | if (cmdId == CONTROLVM_BUS_DESTROY) | |
808 | need_clear = TRUE; | |
809 | } | |
810 | ||
811 | if (p->pendingMsgHdr.Id == CONTROLVM_INVALID) { | |
812 | LOGERR("bus_responder no pending msg"); | |
813 | return; /* no controlvm response needed */ | |
814 | } | |
815 | if (p->pendingMsgHdr.Id != (U32) cmdId) { | |
816 | LOGERR("expected=%d, found=%d", cmdId, p->pendingMsgHdr.Id); | |
817 | return; | |
818 | } | |
819 | controlvm_respond(&p->pendingMsgHdr, response); | |
820 | p->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
821 | if (need_clear) { | |
822 | busInfo_clear(p); | |
823 | delbusdevices(&DevInfoList, busNo); | |
824 | } | |
825 | } | |
826 | ||
827 | static void | |
828 | device_changestate_responder(CONTROLVM_ID cmdId, | |
829 | ulong busNo, ulong devNo, int response, | |
830 | ULTRA_SEGMENT_STATE responseState) | |
831 | { | |
832 | VISORCHIPSET_DEVICE_INFO *p = NULL; | |
833 | CONTROLVM_MESSAGE outmsg; | |
834 | ||
835 | if (!ControlVm_channel) | |
836 | return; | |
837 | ||
838 | p = finddevice(&DevInfoList, busNo, devNo); | |
839 | if (!p) { | |
840 | LOGERR("internal error; busNo=%lu, devNo=%lu", busNo, devNo); | |
841 | return; | |
842 | } | |
843 | if (p->pendingMsgHdr.Id == CONTROLVM_INVALID) { | |
844 | LOGERR("device_responder no pending msg"); | |
845 | return; /* no controlvm response needed */ | |
846 | } | |
847 | if (p->pendingMsgHdr.Id != cmdId) { | |
848 | LOGERR("expected=%d, found=%d", cmdId, p->pendingMsgHdr.Id); | |
849 | return; | |
850 | } | |
851 | ||
852 | controlvm_init_response(&outmsg, &p->pendingMsgHdr, response); | |
853 | ||
854 | outmsg.cmd.deviceChangeState.busNo = busNo; | |
855 | outmsg.cmd.deviceChangeState.devNo = devNo; | |
856 | outmsg.cmd.deviceChangeState.state = responseState; | |
857 | ||
858 | if (!visorchannel_signalinsert(ControlVm_channel, | |
859 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
860 | LOGERR("signalinsert failed!"); | |
861 | return; | |
862 | } | |
863 | ||
864 | p->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
865 | } | |
866 | ||
867 | static void | |
868 | device_responder(CONTROLVM_ID cmdId, ulong busNo, ulong devNo, int response) | |
869 | { | |
870 | VISORCHIPSET_DEVICE_INFO *p = NULL; | |
871 | BOOL need_clear = FALSE; | |
872 | ||
873 | p = finddevice(&DevInfoList, busNo, devNo); | |
874 | if (!p) { | |
875 | LOGERR("internal error; busNo=%lu, devNo=%lu", busNo, devNo); | |
876 | return; | |
877 | } | |
878 | if (response >= 0) { | |
879 | if (cmdId == CONTROLVM_DEVICE_CREATE) | |
880 | p->state.created = 1; | |
881 | if (cmdId == CONTROLVM_DEVICE_DESTROY) | |
882 | need_clear = TRUE; | |
883 | } | |
884 | ||
885 | if (p->pendingMsgHdr.Id == CONTROLVM_INVALID) { | |
886 | LOGERR("device_responder no pending msg"); | |
887 | return; /* no controlvm response needed */ | |
888 | } | |
889 | if (p->pendingMsgHdr.Id != (U32) cmdId) { | |
890 | LOGERR("expected=%d, found=%d", cmdId, p->pendingMsgHdr.Id); | |
891 | return; | |
892 | } | |
893 | controlvm_respond(&p->pendingMsgHdr, response); | |
894 | p->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
895 | if (need_clear) | |
896 | devInfo_clear(p); | |
897 | } | |
898 | ||
899 | static void | |
900 | bus_epilog(U32 busNo, | |
901 | U32 cmd, CONTROLVM_MESSAGE_HEADER *msgHdr, | |
902 | int response, BOOL needResponse) | |
903 | { | |
904 | BOOL notified = FALSE; | |
905 | ||
906 | VISORCHIPSET_BUS_INFO *pBusInfo = findbus(&BusInfoList, busNo); | |
907 | ||
908 | if (!pBusInfo) { | |
909 | LOGERR("HUH? bad busNo=%d", busNo); | |
910 | return; | |
911 | } | |
912 | if (needResponse) { | |
913 | memcpy(&pBusInfo->pendingMsgHdr, msgHdr, | |
914 | sizeof(CONTROLVM_MESSAGE_HEADER)); | |
915 | } else | |
916 | pBusInfo->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
917 | ||
918 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
919 | if (response == CONTROLVM_RESP_SUCCESS) { | |
920 | switch (cmd) { | |
921 | case CONTROLVM_BUS_CREATE: | |
922 | /* We can't tell from the bus_create | |
923 | * information which of our 2 bus flavors the | |
924 | * devices on this bus will ultimately end up. | |
925 | * FORTUNATELY, it turns out it is harmless to | |
926 | * send the bus_create to both of them. We can | |
927 | * narrow things down a little bit, though, | |
928 | * because we know: - BusDev_Server can handle | |
929 | * either server or client devices | |
930 | * - BusDev_Client can handle ONLY client | |
931 | * devices */ | |
932 | if (BusDev_Server_Notifiers.bus_create) { | |
933 | (*BusDev_Server_Notifiers.bus_create) (busNo); | |
934 | notified = TRUE; | |
935 | } | |
936 | if ((!pBusInfo->flags.server) /*client */ && | |
937 | BusDev_Client_Notifiers.bus_create) { | |
938 | (*BusDev_Client_Notifiers.bus_create) (busNo); | |
939 | notified = TRUE; | |
940 | } | |
941 | break; | |
942 | case CONTROLVM_BUS_DESTROY: | |
943 | if (BusDev_Server_Notifiers.bus_destroy) { | |
944 | (*BusDev_Server_Notifiers.bus_destroy) (busNo); | |
945 | notified = TRUE; | |
946 | } | |
947 | if ((!pBusInfo->flags.server) /*client */ && | |
948 | BusDev_Client_Notifiers.bus_destroy) { | |
949 | (*BusDev_Client_Notifiers.bus_destroy) (busNo); | |
950 | notified = TRUE; | |
951 | } | |
952 | break; | |
953 | } | |
954 | } | |
955 | if (notified) | |
956 | /* The callback function just called above is responsible | |
957 | * for calling the appropriate VISORCHIPSET_BUSDEV_RESPONDERS | |
958 | * function, which will call bus_responder() | |
959 | */ | |
960 | ; | |
961 | else | |
962 | bus_responder(cmd, busNo, response); | |
963 | UNLOCKSEM(&NotifierLock); | |
964 | } | |
965 | ||
966 | static void | |
967 | device_epilog(U32 busNo, U32 devNo, ULTRA_SEGMENT_STATE state, U32 cmd, | |
968 | CONTROLVM_MESSAGE_HEADER *msgHdr, int response, | |
969 | BOOL needResponse, BOOL for_visorbus) | |
970 | { | |
971 | VISORCHIPSET_BUSDEV_NOTIFIERS *notifiers = NULL; | |
972 | BOOL notified = FALSE; | |
973 | ||
974 | VISORCHIPSET_DEVICE_INFO *pDevInfo = | |
975 | finddevice(&DevInfoList, busNo, devNo); | |
976 | char *envp[] = { | |
977 | "SPARSP_DIAGPOOL_PAUSED_STATE = 1", | |
978 | NULL | |
979 | }; | |
980 | ||
981 | if (!pDevInfo) { | |
982 | LOGERR("HUH? bad busNo=%d, devNo=%d", busNo, devNo); | |
983 | return; | |
984 | } | |
985 | if (for_visorbus) | |
986 | notifiers = &BusDev_Server_Notifiers; | |
987 | else | |
988 | notifiers = &BusDev_Client_Notifiers; | |
989 | if (needResponse) { | |
990 | memcpy(&pDevInfo->pendingMsgHdr, msgHdr, | |
991 | sizeof(CONTROLVM_MESSAGE_HEADER)); | |
992 | } else | |
993 | pDevInfo->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
994 | ||
995 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
996 | if (response >= 0) { | |
997 | switch (cmd) { | |
998 | case CONTROLVM_DEVICE_CREATE: | |
999 | if (notifiers->device_create) { | |
1000 | (*notifiers->device_create) (busNo, devNo); | |
1001 | notified = TRUE; | |
1002 | } | |
1003 | break; | |
1004 | case CONTROLVM_DEVICE_CHANGESTATE: | |
1005 | /* ServerReady / ServerRunning / SegmentStateRunning */ | |
1006 | if (state.Alive == SegmentStateRunning.Alive && | |
1007 | state.Operating == SegmentStateRunning.Operating) { | |
1008 | if (notifiers->device_resume) { | |
1009 | (*notifiers->device_resume) (busNo, | |
1010 | devNo); | |
1011 | notified = TRUE; | |
1012 | } | |
1013 | } | |
1014 | /* ServerNotReady / ServerLost / SegmentStateStandby */ | |
1015 | else if (state.Alive == SegmentStateStandby.Alive && | |
1016 | state.Operating == | |
1017 | SegmentStateStandby.Operating) { | |
1018 | /* technically this is standby case | |
1019 | * where server is lost | |
1020 | */ | |
1021 | if (notifiers->device_pause) { | |
1022 | (*notifiers->device_pause) (busNo, | |
1023 | devNo); | |
1024 | notified = TRUE; | |
1025 | } | |
1026 | } else if (state.Alive == SegmentStatePaused.Alive && | |
1027 | state.Operating == | |
1028 | SegmentStatePaused.Operating) { | |
1029 | /* this is lite pause where channel is | |
1030 | * still valid just 'pause' of it | |
1031 | */ | |
1032 | if (busNo == g_diagpoolBusNo | |
1033 | && devNo == g_diagpoolDevNo) { | |
1034 | LOGINF("DEVICE_CHANGESTATE(DiagpoolChannel busNo=%d devNo=%d is pausing...)", | |
1035 | busNo, devNo); | |
1036 | /* this will trigger the | |
1037 | * diag_shutdown.sh script in | |
1038 | * the visorchipset hotplug */ | |
1039 | kobject_uevent_env | |
1040 | (&Visorchipset_platform_device.dev. | |
1041 | kobj, KOBJ_ONLINE, envp); | |
1042 | } | |
1043 | } | |
1044 | break; | |
1045 | case CONTROLVM_DEVICE_DESTROY: | |
1046 | if (notifiers->device_destroy) { | |
1047 | (*notifiers->device_destroy) (busNo, devNo); | |
1048 | notified = TRUE; | |
1049 | } | |
1050 | break; | |
1051 | } | |
1052 | } | |
1053 | if (notified) | |
1054 | /* The callback function just called above is responsible | |
1055 | * for calling the appropriate VISORCHIPSET_BUSDEV_RESPONDERS | |
1056 | * function, which will call device_responder() | |
1057 | */ | |
1058 | ; | |
1059 | else | |
1060 | device_responder(cmd, busNo, devNo, response); | |
1061 | UNLOCKSEM(&NotifierLock); | |
1062 | } | |
1063 | ||
1064 | static void | |
1065 | bus_create(CONTROLVM_MESSAGE *inmsg) | |
1066 | { | |
1067 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1068 | ulong busNo = cmd->createBus.busNo; | |
1069 | int rc = CONTROLVM_RESP_SUCCESS; | |
1070 | VISORCHIPSET_BUS_INFO *pBusInfo = NULL; | |
1071 | ||
1072 | ||
1073 | pBusInfo = findbus(&BusInfoList, busNo); | |
1074 | if (pBusInfo && (pBusInfo->state.created == 1)) { | |
1075 | LOGERR("CONTROLVM_BUS_CREATE Failed: bus %lu already exists", | |
1076 | busNo); | |
1077 | POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo, | |
1078 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1079 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
1080 | goto Away; | |
12e364b9 | 1081 | } |
97a84f12 | 1082 | pBusInfo = kzalloc(sizeof(VISORCHIPSET_BUS_INFO), GFP_KERNEL); |
12e364b9 | 1083 | if (pBusInfo == NULL) { |
97a84f12 | 1084 | LOGERR("CONTROLVM_BUS_CREATE Failed: bus %lu kzalloc failed", |
12e364b9 KC |
1085 | busNo); |
1086 | POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo, | |
1087 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1088 | rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; |
1089 | goto Away; | |
12e364b9 KC |
1090 | } |
1091 | ||
12e364b9 KC |
1092 | INIT_LIST_HEAD(&pBusInfo->entry); |
1093 | pBusInfo->busNo = busNo; | |
1094 | pBusInfo->devNo = cmd->createBus.deviceCount; | |
1095 | ||
1096 | POSTCODE_LINUX_3(BUS_CREATE_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1097 | ||
1098 | if (inmsg->hdr.Flags.testMessage == 1) | |
1099 | pBusInfo->chanInfo.addrType = ADDRTYPE_localTest; | |
1100 | else | |
1101 | pBusInfo->chanInfo.addrType = ADDRTYPE_localPhysical; | |
1102 | ||
1103 | pBusInfo->flags.server = inmsg->hdr.Flags.server; | |
1104 | pBusInfo->chanInfo.channelAddr = cmd->createBus.channelAddr; | |
1105 | pBusInfo->chanInfo.nChannelBytes = cmd->createBus.channelBytes; | |
1106 | pBusInfo->chanInfo.channelTypeGuid = cmd->createBus.busDataTypeGuid; | |
1107 | pBusInfo->chanInfo.channelInstGuid = cmd->createBus.busInstGuid; | |
1108 | ||
1109 | list_add(&pBusInfo->entry, &BusInfoList); | |
1110 | ||
1111 | POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1112 | ||
1113 | Away: | |
1114 | bus_epilog(busNo, CONTROLVM_BUS_CREATE, &inmsg->hdr, | |
1115 | rc, inmsg->hdr.Flags.responseExpected == 1); | |
1116 | } | |
1117 | ||
1118 | static void | |
1119 | bus_destroy(CONTROLVM_MESSAGE *inmsg) | |
1120 | { | |
1121 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1122 | ulong busNo = cmd->destroyBus.busNo; | |
1123 | VISORCHIPSET_BUS_INFO *pBusInfo; | |
1124 | int rc = CONTROLVM_RESP_SUCCESS; | |
1125 | ||
1126 | pBusInfo = findbus(&BusInfoList, busNo); | |
1127 | if (!pBusInfo) { | |
1128 | LOGERR("CONTROLVM_BUS_DESTROY Failed: bus %lu invalid", busNo); | |
22ad57ba KC |
1129 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1130 | goto Away; | |
12e364b9 KC |
1131 | } |
1132 | if (pBusInfo->state.created == 0) { | |
1133 | LOGERR("CONTROLVM_BUS_DESTROY Failed: bus %lu already destroyed", | |
1134 | busNo); | |
22ad57ba KC |
1135 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
1136 | goto Away; | |
12e364b9 KC |
1137 | } |
1138 | ||
1139 | Away: | |
1140 | bus_epilog(busNo, CONTROLVM_BUS_DESTROY, &inmsg->hdr, | |
1141 | rc, inmsg->hdr.Flags.responseExpected == 1); | |
1142 | } | |
1143 | ||
1144 | static void | |
1145 | bus_configure(CONTROLVM_MESSAGE *inmsg, PARSER_CONTEXT *parser_ctx) | |
1146 | { | |
1147 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1148 | ulong busNo = cmd->configureBus.busNo; | |
1149 | VISORCHIPSET_BUS_INFO *pBusInfo = NULL; | |
1150 | int rc = CONTROLVM_RESP_SUCCESS; | |
1151 | char s[99]; | |
1152 | ||
1153 | busNo = cmd->configureBus.busNo; | |
1154 | POSTCODE_LINUX_3(BUS_CONFIGURE_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1155 | ||
1156 | pBusInfo = findbus(&BusInfoList, busNo); | |
1157 | if (!pBusInfo) { | |
1158 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: bus %lu invalid", | |
1159 | busNo); | |
1160 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1161 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1162 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1163 | goto Away; | |
12e364b9 KC |
1164 | } |
1165 | if (pBusInfo->state.created == 0) { | |
1166 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: Invalid bus %lu - not created yet", | |
1167 | busNo); | |
1168 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1169 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1170 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1171 | goto Away; | |
12e364b9 KC |
1172 | } |
1173 | /* TBD - add this check to other commands also... */ | |
1174 | if (pBusInfo->pendingMsgHdr.Id != CONTROLVM_INVALID) { | |
1175 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: bus %lu MsgId=%u outstanding", | |
1176 | busNo, (uint) pBusInfo->pendingMsgHdr.Id); | |
1177 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1178 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1179 | rc = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT; |
1180 | goto Away; | |
12e364b9 KC |
1181 | } |
1182 | ||
1183 | pBusInfo->partitionHandle = cmd->configureBus.guestHandle; | |
1184 | pBusInfo->partitionGuid = parser_id_get(parser_ctx); | |
1185 | parser_param_start(parser_ctx, PARSERSTRING_NAME); | |
1186 | pBusInfo->name = parser_string_get(parser_ctx); | |
1187 | ||
90addb02 | 1188 | visorchannel_uuid_id(&pBusInfo->partitionGuid, s); |
12e364b9 | 1189 | pBusInfo->procObject = |
927c7927 | 1190 | visor_proc_CreateObject(PartitionType, s, (void *) (pBusInfo)); |
12e364b9 KC |
1191 | if (pBusInfo->procObject == NULL) { |
1192 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: busNo=%lu failed to create /proc entry", | |
1193 | busNo); | |
1194 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1195 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1196 | rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; |
1197 | goto Away; | |
12e364b9 KC |
1198 | } |
1199 | POSTCODE_LINUX_3(BUS_CONFIGURE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1200 | Away: | |
1201 | bus_epilog(busNo, CONTROLVM_BUS_CONFIGURE, &inmsg->hdr, | |
1202 | rc, inmsg->hdr.Flags.responseExpected == 1); | |
1203 | } | |
1204 | ||
1205 | static void | |
1206 | my_device_create(CONTROLVM_MESSAGE *inmsg) | |
1207 | { | |
1208 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1209 | ulong busNo = cmd->createDevice.busNo; | |
1210 | ulong devNo = cmd->createDevice.devNo; | |
1211 | VISORCHIPSET_DEVICE_INFO *pDevInfo = NULL; | |
1212 | VISORCHIPSET_BUS_INFO *pBusInfo = NULL; | |
1213 | int rc = CONTROLVM_RESP_SUCCESS; | |
1214 | ||
1215 | pDevInfo = finddevice(&DevInfoList, busNo, devNo); | |
1216 | if (pDevInfo && (pDevInfo->state.created == 1)) { | |
1217 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: busNo=%lu, devNo=%lu already exists", | |
1218 | busNo, devNo); | |
1219 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1220 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1221 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
1222 | goto Away; | |
12e364b9 KC |
1223 | } |
1224 | pBusInfo = findbus(&BusInfoList, busNo); | |
1225 | if (!pBusInfo) { | |
1226 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: Invalid bus %lu - out of range", | |
1227 | busNo); | |
1228 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1229 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1230 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1231 | goto Away; | |
12e364b9 KC |
1232 | } |
1233 | if (pBusInfo->state.created == 0) { | |
1234 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: Invalid bus %lu - not created yet", | |
1235 | busNo); | |
1236 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1237 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1238 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1239 | goto Away; | |
12e364b9 | 1240 | } |
97a84f12 | 1241 | pDevInfo = kzalloc(sizeof(VISORCHIPSET_DEVICE_INFO), GFP_KERNEL); |
12e364b9 KC |
1242 | if (pDevInfo == NULL) { |
1243 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: busNo=%lu, devNo=%lu kmaloc failed", | |
1244 | busNo, devNo); | |
1245 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1246 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1247 | rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; |
1248 | goto Away; | |
12e364b9 | 1249 | } |
97a84f12 | 1250 | |
12e364b9 KC |
1251 | INIT_LIST_HEAD(&pDevInfo->entry); |
1252 | pDevInfo->busNo = busNo; | |
1253 | pDevInfo->devNo = devNo; | |
1254 | pDevInfo->devInstGuid = cmd->createDevice.devInstGuid; | |
1255 | POSTCODE_LINUX_4(DEVICE_CREATE_ENTRY_PC, devNo, busNo, | |
1256 | POSTCODE_SEVERITY_INFO); | |
1257 | ||
1258 | if (inmsg->hdr.Flags.testMessage == 1) | |
1259 | pDevInfo->chanInfo.addrType = ADDRTYPE_localTest; | |
1260 | else | |
1261 | pDevInfo->chanInfo.addrType = ADDRTYPE_localPhysical; | |
1262 | pDevInfo->chanInfo.channelAddr = cmd->createDevice.channelAddr; | |
1263 | pDevInfo->chanInfo.nChannelBytes = cmd->createDevice.channelBytes; | |
1264 | pDevInfo->chanInfo.channelTypeGuid = cmd->createDevice.dataTypeGuid; | |
1265 | pDevInfo->chanInfo.intr = cmd->createDevice.intr; | |
1266 | list_add(&pDevInfo->entry, &DevInfoList); | |
1267 | POSTCODE_LINUX_4(DEVICE_CREATE_EXIT_PC, devNo, busNo, | |
1268 | POSTCODE_SEVERITY_INFO); | |
1269 | Away: | |
1270 | /* get the bus and devNo for DiagPool channel */ | |
1271 | if (is_diagpool_channel(pDevInfo->chanInfo.channelTypeGuid)) { | |
1272 | g_diagpoolBusNo = busNo; | |
1273 | g_diagpoolDevNo = devNo; | |
1274 | LOGINF("CONTROLVM_DEVICE_CREATE for DiagPool channel: busNo=%lu, devNo=%lu", | |
1275 | g_diagpoolBusNo, g_diagpoolDevNo); | |
1276 | } | |
1277 | device_epilog(busNo, devNo, SegmentStateRunning, | |
1278 | CONTROLVM_DEVICE_CREATE, &inmsg->hdr, rc, | |
1279 | inmsg->hdr.Flags.responseExpected == 1, | |
1280 | FOR_VISORBUS(pDevInfo->chanInfo.channelTypeGuid)); | |
1281 | } | |
1282 | ||
1283 | static void | |
1284 | my_device_changestate(CONTROLVM_MESSAGE *inmsg) | |
1285 | { | |
1286 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1287 | ulong busNo = cmd->deviceChangeState.busNo; | |
1288 | ulong devNo = cmd->deviceChangeState.devNo; | |
1289 | ULTRA_SEGMENT_STATE state = cmd->deviceChangeState.state; | |
1290 | VISORCHIPSET_DEVICE_INFO *pDevInfo = NULL; | |
1291 | int rc = CONTROLVM_RESP_SUCCESS; | |
1292 | ||
1293 | pDevInfo = finddevice(&DevInfoList, busNo, devNo); | |
1294 | if (!pDevInfo) { | |
1295 | LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: busNo=%lu, devNo=%lu invalid (doesn't exist)", | |
1296 | busNo, devNo); | |
1297 | POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, devNo, busNo, | |
1298 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1299 | rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID; |
1300 | goto Away; | |
12e364b9 KC |
1301 | } |
1302 | if (pDevInfo->state.created == 0) { | |
1303 | LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: busNo=%lu, devNo=%lu invalid (not created)", | |
1304 | busNo, devNo); | |
1305 | POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, devNo, busNo, | |
1306 | POSTCODE_SEVERITY_ERR); | |
22ad57ba | 1307 | rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID; |
12e364b9 KC |
1308 | } |
1309 | Away: | |
1310 | if ((rc >= CONTROLVM_RESP_SUCCESS) && pDevInfo) | |
1311 | device_epilog(busNo, devNo, state, CONTROLVM_DEVICE_CHANGESTATE, | |
1312 | &inmsg->hdr, rc, | |
1313 | inmsg->hdr.Flags.responseExpected == 1, | |
1314 | FOR_VISORBUS(pDevInfo->chanInfo.channelTypeGuid)); | |
1315 | } | |
1316 | ||
1317 | static void | |
1318 | my_device_destroy(CONTROLVM_MESSAGE *inmsg) | |
1319 | { | |
1320 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1321 | ulong busNo = cmd->destroyDevice.busNo; | |
1322 | ulong devNo = cmd->destroyDevice.devNo; | |
1323 | VISORCHIPSET_DEVICE_INFO *pDevInfo = NULL; | |
1324 | int rc = CONTROLVM_RESP_SUCCESS; | |
1325 | ||
1326 | pDevInfo = finddevice(&DevInfoList, busNo, devNo); | |
1327 | if (!pDevInfo) { | |
1328 | LOGERR("CONTROLVM_DEVICE_DESTROY Failed: busNo=%lu, devNo=%lu invalid", | |
1329 | busNo, devNo); | |
22ad57ba KC |
1330 | rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID; |
1331 | goto Away; | |
12e364b9 KC |
1332 | } |
1333 | if (pDevInfo->state.created == 0) { | |
1334 | LOGERR("CONTROLVM_DEVICE_DESTROY Failed: busNo=%lu, devNo=%lu already destroyed", | |
1335 | busNo, devNo); | |
22ad57ba | 1336 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
12e364b9 KC |
1337 | } |
1338 | ||
1339 | Away: | |
1340 | if ((rc >= CONTROLVM_RESP_SUCCESS) && pDevInfo) | |
1341 | device_epilog(busNo, devNo, SegmentStateRunning, | |
1342 | CONTROLVM_DEVICE_DESTROY, &inmsg->hdr, rc, | |
1343 | inmsg->hdr.Flags.responseExpected == 1, | |
1344 | FOR_VISORBUS(pDevInfo->chanInfo.channelTypeGuid)); | |
1345 | } | |
1346 | ||
1347 | /* When provided with the physical address of the controlvm channel | |
1348 | * (phys_addr), the offset to the payload area we need to manage | |
1349 | * (offset), and the size of this payload area (bytes), fills in the | |
1350 | * CONTROLVM_PAYLOAD_INFO struct. Returns TRUE for success or FALSE | |
1351 | * for failure. | |
1352 | */ | |
1353 | static int | |
1354 | initialize_controlvm_payload_info(HOSTADDRESS phys_addr, U64 offset, U32 bytes, | |
1355 | CONTROLVM_PAYLOAD_INFO *info) | |
1356 | { | |
bd5b9b32 | 1357 | U8 __iomem *payload = NULL; |
12e364b9 KC |
1358 | int rc = CONTROLVM_RESP_SUCCESS; |
1359 | ||
1360 | if (info == NULL) { | |
1361 | LOGERR("HUH ? CONTROLVM_PAYLOAD_INIT Failed : Programmer check at %s:%d", | |
1362 | __FILE__, __LINE__); | |
22ad57ba KC |
1363 | rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; |
1364 | goto Away; | |
12e364b9 KC |
1365 | } |
1366 | memset(info, 0, sizeof(CONTROLVM_PAYLOAD_INFO)); | |
1367 | if ((offset == 0) || (bytes == 0)) { | |
1368 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed: RequestPayloadOffset=%llu RequestPayloadBytes=%llu!", | |
1369 | (u64) offset, (u64) bytes); | |
22ad57ba KC |
1370 | rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; |
1371 | goto Away; | |
12e364b9 KC |
1372 | } |
1373 | payload = ioremap_cache(phys_addr + offset, bytes); | |
1374 | if (payload == NULL) { | |
1375 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed: ioremap_cache %llu for %llu bytes failed", | |
1376 | (u64) offset, (u64) bytes); | |
22ad57ba KC |
1377 | rc = -CONTROLVM_RESP_ERROR_IOREMAP_FAILED; |
1378 | goto Away; | |
12e364b9 KC |
1379 | } |
1380 | ||
1381 | info->offset = offset; | |
1382 | info->bytes = bytes; | |
1383 | info->ptr = payload; | |
1384 | LOGINF("offset=%llu, bytes=%lu, ptr=%p", | |
1385 | (u64) (info->offset), (ulong) (info->bytes), info->ptr); | |
1386 | ||
1387 | Away: | |
1388 | if (rc < 0) { | |
1389 | if (payload != NULL) { | |
1390 | iounmap(payload); | |
1391 | payload = NULL; | |
1392 | } | |
1393 | } | |
1394 | return rc; | |
1395 | } | |
1396 | ||
1397 | static void | |
1398 | destroy_controlvm_payload_info(CONTROLVM_PAYLOAD_INFO *info) | |
1399 | { | |
1400 | if (info->ptr != NULL) { | |
1401 | iounmap(info->ptr); | |
1402 | info->ptr = NULL; | |
1403 | } | |
1404 | memset(info, 0, sizeof(CONTROLVM_PAYLOAD_INFO)); | |
1405 | } | |
1406 | ||
1407 | static void | |
1408 | initialize_controlvm_payload(void) | |
1409 | { | |
1410 | HOSTADDRESS phys_addr = visorchannel_get_physaddr(ControlVm_channel); | |
1411 | U64 payloadOffset = 0; | |
1412 | U32 payloadBytes = 0; | |
1413 | if (visorchannel_read(ControlVm_channel, | |
1414 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
1415 | RequestPayloadOffset), | |
1416 | &payloadOffset, sizeof(payloadOffset)) < 0) { | |
1417 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed to read controlvm channel!"); | |
1418 | POSTCODE_LINUX_2(CONTROLVM_INIT_FAILURE_PC, | |
1419 | POSTCODE_SEVERITY_ERR); | |
1420 | return; | |
1421 | } | |
1422 | if (visorchannel_read(ControlVm_channel, | |
1423 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
1424 | RequestPayloadBytes), | |
1425 | &payloadBytes, sizeof(payloadBytes)) < 0) { | |
1426 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed to read controlvm channel!"); | |
1427 | POSTCODE_LINUX_2(CONTROLVM_INIT_FAILURE_PC, | |
1428 | POSTCODE_SEVERITY_ERR); | |
1429 | return; | |
1430 | } | |
1431 | initialize_controlvm_payload_info(phys_addr, | |
1432 | payloadOffset, payloadBytes, | |
1433 | &ControlVm_payload_info); | |
1434 | } | |
1435 | ||
1436 | /* Send ACTION=online for DEVPATH=/sys/devices/platform/visorchipset. | |
1437 | * Returns CONTROLVM_RESP_xxx code. | |
1438 | */ | |
1439 | int | |
1440 | visorchipset_chipset_ready(void) | |
1441 | { | |
1442 | kobject_uevent(&Visorchipset_platform_device.dev.kobj, KOBJ_ONLINE); | |
1443 | return CONTROLVM_RESP_SUCCESS; | |
1444 | } | |
1445 | EXPORT_SYMBOL_GPL(visorchipset_chipset_ready); | |
1446 | ||
1447 | int | |
1448 | visorchipset_chipset_selftest(void) | |
1449 | { | |
1450 | char env_selftest[20]; | |
1451 | char *envp[] = { env_selftest, NULL }; | |
1452 | sprintf(env_selftest, "SPARSP_SELFTEST=%d", 1); | |
1453 | kobject_uevent_env(&Visorchipset_platform_device.dev.kobj, KOBJ_CHANGE, | |
1454 | envp); | |
1455 | return CONTROLVM_RESP_SUCCESS; | |
1456 | } | |
1457 | EXPORT_SYMBOL_GPL(visorchipset_chipset_selftest); | |
1458 | ||
1459 | /* Send ACTION=offline for DEVPATH=/sys/devices/platform/visorchipset. | |
1460 | * Returns CONTROLVM_RESP_xxx code. | |
1461 | */ | |
1462 | int | |
1463 | visorchipset_chipset_notready(void) | |
1464 | { | |
1465 | kobject_uevent(&Visorchipset_platform_device.dev.kobj, KOBJ_OFFLINE); | |
1466 | return CONTROLVM_RESP_SUCCESS; | |
1467 | } | |
1468 | EXPORT_SYMBOL_GPL(visorchipset_chipset_notready); | |
1469 | ||
1470 | static void | |
1471 | chipset_ready(CONTROLVM_MESSAGE_HEADER *msgHdr) | |
1472 | { | |
1473 | int rc = visorchipset_chipset_ready(); | |
1474 | if (rc != CONTROLVM_RESP_SUCCESS) | |
1475 | rc = -rc; | |
1476 | if (msgHdr->Flags.responseExpected && !visorchipset_holdchipsetready) | |
1477 | controlvm_respond(msgHdr, rc); | |
1478 | if (msgHdr->Flags.responseExpected && visorchipset_holdchipsetready) { | |
1479 | /* Send CHIPSET_READY response when all modules have been loaded | |
1480 | * and disks mounted for the partition | |
1481 | */ | |
1482 | g_ChipSetMsgHdr = *msgHdr; | |
1483 | LOGINF("Holding CHIPSET_READY response"); | |
1484 | } | |
1485 | } | |
1486 | ||
1487 | static void | |
1488 | chipset_selftest(CONTROLVM_MESSAGE_HEADER *msgHdr) | |
1489 | { | |
1490 | int rc = visorchipset_chipset_selftest(); | |
1491 | if (rc != CONTROLVM_RESP_SUCCESS) | |
1492 | rc = -rc; | |
1493 | if (msgHdr->Flags.responseExpected) | |
1494 | controlvm_respond(msgHdr, rc); | |
1495 | } | |
1496 | ||
1497 | static void | |
1498 | chipset_notready(CONTROLVM_MESSAGE_HEADER *msgHdr) | |
1499 | { | |
1500 | int rc = visorchipset_chipset_notready(); | |
1501 | if (rc != CONTROLVM_RESP_SUCCESS) | |
1502 | rc = -rc; | |
1503 | if (msgHdr->Flags.responseExpected) | |
1504 | controlvm_respond(msgHdr, rc); | |
1505 | } | |
1506 | ||
1507 | /* This is your "one-stop" shop for grabbing the next message from the | |
1508 | * CONTROLVM_QUEUE_EVENT queue in the controlvm channel. | |
1509 | */ | |
1510 | static BOOL | |
1511 | read_controlvm_event(CONTROLVM_MESSAGE *msg) | |
1512 | { | |
1513 | if (visorchannel_signalremove(ControlVm_channel, | |
1514 | CONTROLVM_QUEUE_EVENT, msg)) { | |
1515 | /* got a message */ | |
1516 | if (msg->hdr.Flags.testMessage == 1) { | |
1517 | LOGERR("ignoring bad CONTROLVM_QUEUE_EVENT msg with controlvm_msg_id=0x%x because Flags.testMessage is nonsensical (=1)", msg->hdr.Id); | |
1518 | return FALSE; | |
1519 | } else | |
1520 | return TRUE; | |
1521 | } | |
1522 | return FALSE; | |
1523 | } | |
1524 | ||
1525 | /* | |
1526 | * The general parahotplug flow works as follows. The visorchipset | |
1527 | * driver receives a DEVICE_CHANGESTATE message from Command | |
1528 | * specifying a physical device to enable or disable. The CONTROLVM | |
1529 | * message handler calls parahotplug_process_message, which then adds | |
1530 | * the message to a global list and kicks off a udev event which | |
1531 | * causes a user level script to enable or disable the specified | |
1532 | * device. The udev script then writes to | |
1533 | * /proc/visorchipset/parahotplug, which causes parahotplug_proc_write | |
1534 | * to get called, at which point the appropriate CONTROLVM message is | |
1535 | * retrieved from the list and responded to. | |
1536 | */ | |
1537 | ||
1538 | #define PARAHOTPLUG_TIMEOUT_MS 2000 | |
1539 | ||
1540 | /* | |
1541 | * Generate unique int to match an outstanding CONTROLVM message with a | |
1542 | * udev script /proc response | |
1543 | */ | |
1544 | static int | |
1545 | parahotplug_next_id(void) | |
1546 | { | |
1547 | static atomic_t id = ATOMIC_INIT(0); | |
1548 | return atomic_inc_return(&id); | |
1549 | } | |
1550 | ||
1551 | /* | |
1552 | * Returns the time (in jiffies) when a CONTROLVM message on the list | |
1553 | * should expire -- PARAHOTPLUG_TIMEOUT_MS in the future | |
1554 | */ | |
1555 | static unsigned long | |
1556 | parahotplug_next_expiration(void) | |
1557 | { | |
1558 | return jiffies + PARAHOTPLUG_TIMEOUT_MS * HZ / 1000; | |
1559 | } | |
1560 | ||
1561 | /* | |
1562 | * Create a parahotplug_request, which is basically a wrapper for a | |
1563 | * CONTROLVM_MESSAGE that we can stick on a list | |
1564 | */ | |
1565 | static struct parahotplug_request * | |
1566 | parahotplug_request_create(CONTROLVM_MESSAGE *msg) | |
1567 | { | |
1568 | struct parahotplug_request *req = | |
1569 | kmalloc(sizeof(struct parahotplug_request), | |
1570 | GFP_KERNEL|__GFP_NORETRY); | |
1571 | if (req == NULL) | |
1572 | return NULL; | |
1573 | ||
1574 | req->id = parahotplug_next_id(); | |
1575 | req->expiration = parahotplug_next_expiration(); | |
1576 | req->msg = *msg; | |
1577 | ||
1578 | return req; | |
1579 | } | |
1580 | ||
1581 | /* | |
1582 | * Free a parahotplug_request. | |
1583 | */ | |
1584 | static void | |
1585 | parahotplug_request_destroy(struct parahotplug_request *req) | |
1586 | { | |
1587 | kfree(req); | |
1588 | } | |
1589 | ||
1590 | /* | |
1591 | * Cause uevent to run the user level script to do the disable/enable | |
1592 | * specified in (the CONTROLVM message in) the specified | |
1593 | * parahotplug_request | |
1594 | */ | |
1595 | static void | |
1596 | parahotplug_request_kickoff(struct parahotplug_request *req) | |
1597 | { | |
1598 | CONTROLVM_MESSAGE_PACKET *cmd = &req->msg.cmd; | |
1599 | char env_cmd[40], env_id[40], env_state[40], env_bus[40], env_dev[40], | |
1600 | env_func[40]; | |
1601 | char *envp[] = { | |
1602 | env_cmd, env_id, env_state, env_bus, env_dev, env_func, NULL | |
1603 | }; | |
1604 | ||
1605 | sprintf(env_cmd, "SPAR_PARAHOTPLUG=1"); | |
1606 | sprintf(env_id, "SPAR_PARAHOTPLUG_ID=%d", req->id); | |
1607 | sprintf(env_state, "SPAR_PARAHOTPLUG_STATE=%d", | |
1608 | cmd->deviceChangeState.state.Active); | |
1609 | sprintf(env_bus, "SPAR_PARAHOTPLUG_BUS=%d", | |
1610 | cmd->deviceChangeState.busNo); | |
1611 | sprintf(env_dev, "SPAR_PARAHOTPLUG_DEVICE=%d", | |
1612 | cmd->deviceChangeState.devNo >> 3); | |
1613 | sprintf(env_func, "SPAR_PARAHOTPLUG_FUNCTION=%d", | |
1614 | cmd->deviceChangeState.devNo & 0x7); | |
1615 | ||
1616 | LOGINF("parahotplug_request_kickoff: state=%d, bdf=%d/%d/%d, id=%u\n", | |
1617 | cmd->deviceChangeState.state.Active, | |
1618 | cmd->deviceChangeState.busNo, cmd->deviceChangeState.devNo >> 3, | |
1619 | cmd->deviceChangeState.devNo & 7, req->id); | |
1620 | ||
1621 | kobject_uevent_env(&Visorchipset_platform_device.dev.kobj, KOBJ_CHANGE, | |
1622 | envp); | |
1623 | } | |
1624 | ||
1625 | /* | |
1626 | * Remove any request from the list that's been on there too long and | |
1627 | * respond with an error. | |
1628 | */ | |
1629 | static void | |
1630 | parahotplug_process_list(void) | |
1631 | { | |
1632 | struct list_head *pos = NULL; | |
1633 | struct list_head *tmp = NULL; | |
1634 | ||
1635 | spin_lock(&Parahotplug_request_list_lock); | |
1636 | ||
1637 | list_for_each_safe(pos, tmp, &Parahotplug_request_list) { | |
1638 | struct parahotplug_request *req = | |
1639 | list_entry(pos, struct parahotplug_request, list); | |
1640 | if (time_after_eq(jiffies, req->expiration)) { | |
1641 | list_del(pos); | |
1642 | if (req->msg.hdr.Flags.responseExpected) | |
1643 | controlvm_respond_physdev_changestate( | |
1644 | &req->msg.hdr, | |
1645 | CONTROLVM_RESP_ERROR_DEVICE_UDEV_TIMEOUT, | |
1646 | req->msg.cmd.deviceChangeState.state); | |
1647 | parahotplug_request_destroy(req); | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | spin_unlock(&Parahotplug_request_list_lock); | |
1652 | } | |
1653 | ||
1654 | /* | |
1655 | * Called from the /proc handler, which means the user script has | |
1656 | * finished the enable/disable. Find the matching identifier, and | |
1657 | * respond to the CONTROLVM message with success. | |
1658 | */ | |
1659 | static int | |
1660 | parahotplug_request_complete(int id, U16 active) | |
1661 | { | |
1662 | struct list_head *pos = NULL; | |
1663 | struct list_head *tmp = NULL; | |
1664 | ||
1665 | spin_lock(&Parahotplug_request_list_lock); | |
1666 | ||
1667 | /* Look for a request matching "id". */ | |
1668 | list_for_each_safe(pos, tmp, &Parahotplug_request_list) { | |
1669 | struct parahotplug_request *req = | |
1670 | list_entry(pos, struct parahotplug_request, list); | |
1671 | if (req->id == id) { | |
1672 | /* Found a match. Remove it from the list and | |
1673 | * respond. | |
1674 | */ | |
1675 | list_del(pos); | |
1676 | spin_unlock(&Parahotplug_request_list_lock); | |
1677 | req->msg.cmd.deviceChangeState.state.Active = active; | |
1678 | if (req->msg.hdr.Flags.responseExpected) | |
1679 | controlvm_respond_physdev_changestate( | |
1680 | &req->msg.hdr, CONTROLVM_RESP_SUCCESS, | |
1681 | req->msg.cmd.deviceChangeState.state); | |
1682 | parahotplug_request_destroy(req); | |
1683 | return 0; | |
1684 | } | |
1685 | } | |
1686 | ||
1687 | spin_unlock(&Parahotplug_request_list_lock); | |
1688 | return -1; | |
1689 | } | |
1690 | ||
1691 | /* | |
1692 | * Enables or disables a PCI device by kicking off a udev script | |
1693 | */ | |
bd5b9b32 | 1694 | static void |
12e364b9 KC |
1695 | parahotplug_process_message(CONTROLVM_MESSAGE *inmsg) |
1696 | { | |
1697 | struct parahotplug_request *req; | |
1698 | ||
1699 | req = parahotplug_request_create(inmsg); | |
1700 | ||
1701 | if (req == NULL) { | |
1702 | LOGERR("parahotplug_process_message: couldn't allocate request"); | |
1703 | return; | |
1704 | } | |
1705 | ||
1706 | if (inmsg->cmd.deviceChangeState.state.Active) { | |
1707 | /* For enable messages, just respond with success | |
1708 | * right away. This is a bit of a hack, but there are | |
1709 | * issues with the early enable messages we get (with | |
1710 | * either the udev script not detecting that the device | |
1711 | * is up, or not getting called at all). Fortunately | |
1712 | * the messages that get lost don't matter anyway, as | |
1713 | * devices are automatically enabled at | |
1714 | * initialization. | |
1715 | */ | |
1716 | parahotplug_request_kickoff(req); | |
1717 | controlvm_respond_physdev_changestate(&inmsg->hdr, | |
1718 | CONTROLVM_RESP_SUCCESS, | |
1719 | inmsg->cmd. | |
1720 | deviceChangeState.state); | |
1721 | parahotplug_request_destroy(req); | |
1722 | } else { | |
1723 | /* For disable messages, add the request to the | |
1724 | * request list before kicking off the udev script. It | |
1725 | * won't get responded to until the script has | |
1726 | * indicated it's done. | |
1727 | */ | |
1728 | spin_lock(&Parahotplug_request_list_lock); | |
1729 | list_add_tail(&(req->list), &Parahotplug_request_list); | |
1730 | spin_unlock(&Parahotplug_request_list_lock); | |
1731 | ||
1732 | parahotplug_request_kickoff(req); | |
1733 | } | |
1734 | } | |
1735 | ||
1736 | /* | |
1737 | * Gets called when the udev script writes to | |
1738 | * /proc/visorchipset/parahotplug. Expects input in the form of "<id> | |
1739 | * <active>" where <id> is the identifier passed to the script that | |
1740 | * matches a request on the request list, and <active> is 0 or 1 | |
1741 | * indicating whether the device is now enabled or not. | |
1742 | */ | |
1743 | static ssize_t | |
1744 | parahotplug_proc_write(struct file *file, const char __user *buffer, | |
1745 | size_t count, loff_t *ppos) | |
1746 | { | |
1747 | char buf[64]; | |
1748 | uint id; | |
1749 | ushort active; | |
1750 | ||
1751 | if (count > sizeof(buf) - 1) { | |
1752 | LOGERR("parahotplug_proc_write: count (%d) exceeds size of buffer (%d)", | |
1753 | (int) count, (int) sizeof(buf)); | |
1754 | return -EINVAL; | |
1755 | } | |
1756 | if (copy_from_user(buf, buffer, count)) { | |
1757 | LOGERR("parahotplug_proc_write: copy_from_user failed"); | |
1758 | return -EFAULT; | |
1759 | } | |
1760 | buf[count] = '\0'; | |
1761 | ||
1762 | if (sscanf(buf, "%u %hu", &id, &active) != 2) { | |
1763 | id = 0; | |
1764 | active = 0; | |
1765 | } | |
1766 | ||
1767 | if (active != 1 && active != 0) { | |
1768 | LOGERR("parahotplug_proc_write: invalid active field"); | |
1769 | return -EINVAL; | |
1770 | } | |
1771 | ||
1772 | parahotplug_request_complete((int) id, (U16) active); | |
1773 | ||
1774 | return count; | |
1775 | } | |
1776 | ||
1777 | static const struct file_operations parahotplug_proc_fops = { | |
1778 | .owner = THIS_MODULE, | |
1779 | .read = visorchipset_proc_read_writeonly, | |
1780 | .write = parahotplug_proc_write, | |
1781 | }; | |
1782 | ||
1783 | /* Process a controlvm message. | |
1784 | * Return result: | |
1785 | * FALSE - this function will return FALSE only in the case where the | |
1786 | * controlvm message was NOT processed, but processing must be | |
1787 | * retried before reading the next controlvm message; a | |
1788 | * scenario where this can occur is when we need to throttle | |
1789 | * the allocation of memory in which to copy out controlvm | |
1790 | * payload data | |
1791 | * TRUE - processing of the controlvm message completed, | |
1792 | * either successfully or with an error. | |
1793 | */ | |
1794 | static BOOL | |
1795 | handle_command(CONTROLVM_MESSAGE inmsg, HOSTADDRESS channel_addr) | |
1796 | { | |
1797 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg.cmd; | |
1798 | U64 parametersAddr = 0; | |
1799 | U32 parametersBytes = 0; | |
1800 | PARSER_CONTEXT *parser_ctx = NULL; | |
1801 | BOOL isLocalAddr = FALSE; | |
1802 | CONTROLVM_MESSAGE ackmsg; | |
1803 | ||
1804 | /* create parsing context if necessary */ | |
1805 | isLocalAddr = (inmsg.hdr.Flags.testMessage == 1); | |
1806 | if (channel_addr == 0) { | |
1807 | LOGERR("HUH? channel_addr is 0!"); | |
1808 | return TRUE; | |
1809 | } | |
1810 | parametersAddr = channel_addr + inmsg.hdr.PayloadVmOffset; | |
1811 | parametersBytes = inmsg.hdr.PayloadBytes; | |
1812 | ||
1813 | /* Parameter and channel addresses within test messages actually lie | |
1814 | * within our OS-controlled memory. We need to know that, because it | |
1815 | * makes a difference in how we compute the virtual address. | |
1816 | */ | |
1817 | if (parametersAddr != 0 && parametersBytes != 0) { | |
1818 | BOOL retry = FALSE; | |
1819 | parser_ctx = | |
1820 | parser_init_byteStream(parametersAddr, parametersBytes, | |
1821 | isLocalAddr, &retry); | |
1822 | if (!parser_ctx) { | |
1823 | if (retry) { | |
1824 | LOGWRN("throttling to copy payload"); | |
1825 | return FALSE; | |
1826 | } | |
1827 | LOGWRN("parsing failed"); | |
1828 | LOGWRN("inmsg.hdr.Id=0x%lx", (ulong) inmsg.hdr.Id); | |
1829 | LOGWRN("parametersAddr=0x%llx", (u64) parametersAddr); | |
1830 | LOGWRN("parametersBytes=%lu", (ulong) parametersBytes); | |
1831 | LOGWRN("isLocalAddr=%d", isLocalAddr); | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | if (!isLocalAddr) { | |
1836 | controlvm_init_response(&ackmsg, &inmsg.hdr, | |
1837 | CONTROLVM_RESP_SUCCESS); | |
1838 | if ((ControlVm_channel) | |
1839 | && | |
1840 | (!visorchannel_signalinsert | |
1841 | (ControlVm_channel, CONTROLVM_QUEUE_ACK, &ackmsg))) | |
1842 | LOGWRN("failed to send ACK failed"); | |
1843 | } | |
1844 | switch (inmsg.hdr.Id) { | |
1845 | case CONTROLVM_CHIPSET_INIT: | |
1846 | LOGINF("CHIPSET_INIT(#busses=%lu,#switches=%lu)", | |
1847 | (ulong) inmsg.cmd.initChipset.busCount, | |
1848 | (ulong) inmsg.cmd.initChipset.switchCount); | |
1849 | chipset_init(&inmsg); | |
1850 | break; | |
1851 | case CONTROLVM_BUS_CREATE: | |
1852 | LOGINF("BUS_CREATE(%lu,#devs=%lu)", | |
1853 | (ulong) cmd->createBus.busNo, | |
1854 | (ulong) cmd->createBus.deviceCount); | |
1855 | bus_create(&inmsg); | |
1856 | break; | |
1857 | case CONTROLVM_BUS_DESTROY: | |
1858 | LOGINF("BUS_DESTROY(%lu)", (ulong) cmd->destroyBus.busNo); | |
1859 | bus_destroy(&inmsg); | |
1860 | break; | |
1861 | case CONTROLVM_BUS_CONFIGURE: | |
1862 | LOGINF("BUS_CONFIGURE(%lu)", (ulong) cmd->configureBus.busNo); | |
1863 | bus_configure(&inmsg, parser_ctx); | |
1864 | break; | |
1865 | case CONTROLVM_DEVICE_CREATE: | |
1866 | LOGINF("DEVICE_CREATE(%lu,%lu)", | |
1867 | (ulong) cmd->createDevice.busNo, | |
1868 | (ulong) cmd->createDevice.devNo); | |
1869 | my_device_create(&inmsg); | |
1870 | break; | |
1871 | case CONTROLVM_DEVICE_CHANGESTATE: | |
1872 | if (cmd->deviceChangeState.flags.physicalDevice) { | |
1873 | LOGINF("DEVICE_CHANGESTATE for physical device (%lu,%lu, active=%lu)", | |
1874 | (ulong) cmd->deviceChangeState.busNo, | |
1875 | (ulong) cmd->deviceChangeState.devNo, | |
1876 | (ulong) cmd->deviceChangeState.state.Active); | |
1877 | parahotplug_process_message(&inmsg); | |
1878 | } else { | |
1879 | LOGINF("DEVICE_CHANGESTATE for virtual device (%lu,%lu, state.Alive=0x%lx)", | |
1880 | (ulong) cmd->deviceChangeState.busNo, | |
1881 | (ulong) cmd->deviceChangeState.devNo, | |
1882 | (ulong) cmd->deviceChangeState.state.Alive); | |
1883 | /* save the hdr and cmd structures for later use */ | |
1884 | /* when sending back the response to Command */ | |
1885 | my_device_changestate(&inmsg); | |
1886 | g_DiagMsgHdr = inmsg.hdr; | |
1887 | g_DeviceChangeStatePacket = inmsg.cmd; | |
1888 | break; | |
1889 | } | |
1890 | break; | |
1891 | case CONTROLVM_DEVICE_DESTROY: | |
1892 | LOGINF("DEVICE_DESTROY(%lu,%lu)", | |
1893 | (ulong) cmd->destroyDevice.busNo, | |
1894 | (ulong) cmd->destroyDevice.devNo); | |
1895 | my_device_destroy(&inmsg); | |
1896 | break; | |
1897 | case CONTROLVM_DEVICE_CONFIGURE: | |
1898 | LOGINF("DEVICE_CONFIGURE(%lu,%lu)", | |
1899 | (ulong) cmd->configureDevice.busNo, | |
1900 | (ulong) cmd->configureDevice.devNo); | |
1901 | /* no op for now, just send a respond that we passed */ | |
1902 | if (inmsg.hdr.Flags.responseExpected) | |
1903 | controlvm_respond(&inmsg.hdr, CONTROLVM_RESP_SUCCESS); | |
1904 | break; | |
1905 | case CONTROLVM_CHIPSET_READY: | |
1906 | LOGINF("CHIPSET_READY"); | |
1907 | chipset_ready(&inmsg.hdr); | |
1908 | break; | |
1909 | case CONTROLVM_CHIPSET_SELFTEST: | |
1910 | LOGINF("CHIPSET_SELFTEST"); | |
1911 | chipset_selftest(&inmsg.hdr); | |
1912 | break; | |
1913 | case CONTROLVM_CHIPSET_STOP: | |
1914 | LOGINF("CHIPSET_STOP"); | |
1915 | chipset_notready(&inmsg.hdr); | |
1916 | break; | |
1917 | default: | |
1918 | LOGERR("unrecognized controlvm cmd=%d", (int) inmsg.hdr.Id); | |
1919 | if (inmsg.hdr.Flags.responseExpected) | |
1920 | controlvm_respond(&inmsg.hdr, | |
1921 | -CONTROLVM_RESP_ERROR_MESSAGE_ID_UNKNOWN); | |
1922 | break; | |
1923 | } | |
1924 | ||
1925 | if (parser_ctx != NULL) { | |
1926 | parser_done(parser_ctx); | |
1927 | parser_ctx = NULL; | |
1928 | } | |
1929 | return TRUE; | |
1930 | } | |
1931 | ||
1932 | static void | |
1933 | controlvm_periodic_work(struct work_struct *work) | |
1934 | { | |
1935 | VISORCHIPSET_CHANNEL_INFO chanInfo; | |
1936 | CONTROLVM_MESSAGE inmsg; | |
1937 | char s[99]; | |
1938 | BOOL gotACommand = FALSE; | |
1939 | BOOL handle_command_failed = FALSE; | |
1940 | static U64 Poll_Count; | |
1941 | ||
1942 | /* make sure visorbus server is registered for controlvm callbacks */ | |
1943 | if (visorchipset_serverregwait && !serverregistered) | |
097f4c19 | 1944 | goto Away; |
12e364b9 KC |
1945 | /* make sure visorclientbus server is regsitered for controlvm |
1946 | * callbacks | |
1947 | */ | |
1948 | if (visorchipset_clientregwait && !clientregistered) | |
097f4c19 | 1949 | goto Away; |
12e364b9 KC |
1950 | |
1951 | memset(&chanInfo, 0, sizeof(VISORCHIPSET_CHANNEL_INFO)); | |
1952 | if (!ControlVm_channel) { | |
1953 | HOSTADDRESS addr = controlvm_get_channel_address(); | |
1954 | if (addr != 0) { | |
1955 | ControlVm_channel = | |
1956 | visorchannel_create_with_lock | |
1957 | (addr, | |
1958 | sizeof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL), | |
1959 | UltraControlvmChannelProtocolGuid); | |
1960 | if (ControlVm_channel == NULL) | |
1961 | LOGERR("failed to create controlvm channel"); | |
1962 | else if (ULTRA_CONTROLVM_CHANNEL_OK_CLIENT | |
1963 | (visorchannel_get_header(ControlVm_channel), | |
1964 | NULL)) { | |
1965 | LOGINF("Channel %s (ControlVm) discovered", | |
1966 | visorchannel_id(ControlVm_channel, s)); | |
1967 | initialize_controlvm_payload(); | |
1968 | } else { | |
1969 | LOGERR("controlvm channel is invalid"); | |
1970 | visorchannel_destroy(ControlVm_channel); | |
1971 | ControlVm_channel = NULL; | |
1972 | } | |
1973 | } | |
1974 | } | |
1975 | ||
1976 | Poll_Count++; | |
1977 | if ((ControlVm_channel != NULL) || (Poll_Count >= 250)) | |
1978 | ; /* keep going */ | |
1979 | else | |
097f4c19 | 1980 | goto Away; |
12e364b9 KC |
1981 | |
1982 | /* Check events to determine if response to CHIPSET_READY | |
1983 | * should be sent | |
1984 | */ | |
1985 | if (visorchipset_holdchipsetready | |
1986 | && (g_ChipSetMsgHdr.Id != CONTROLVM_INVALID)) { | |
1987 | if (check_chipset_events() == 1) { | |
1988 | LOGINF("Sending CHIPSET_READY response"); | |
1989 | controlvm_respond(&g_ChipSetMsgHdr, 0); | |
1990 | clear_chipset_events(); | |
1991 | memset(&g_ChipSetMsgHdr, 0, | |
1992 | sizeof(CONTROLVM_MESSAGE_HEADER)); | |
1993 | } | |
1994 | } | |
1995 | ||
1996 | if (ControlVm_channel) { | |
1997 | while (visorchannel_signalremove(ControlVm_channel, | |
1998 | CONTROLVM_QUEUE_RESPONSE, | |
1999 | &inmsg)) { | |
2000 | if (inmsg.hdr.PayloadMaxBytes != 0) { | |
2001 | LOGERR("Payload of size %lu returned @%lu with unexpected message id %d.", | |
2002 | (ulong) inmsg.hdr.PayloadMaxBytes, | |
2003 | (ulong) inmsg.hdr.PayloadVmOffset, | |
2004 | inmsg.hdr.Id); | |
2005 | } | |
2006 | } | |
2007 | if (!gotACommand) { | |
2008 | if (ControlVm_Pending_Msg_Valid) { | |
2009 | /* we throttled processing of a prior | |
2010 | * msg, so try to process it again | |
2011 | * rather than reading a new one | |
2012 | */ | |
2013 | inmsg = ControlVm_Pending_Msg; | |
2014 | ControlVm_Pending_Msg_Valid = FALSE; | |
2015 | gotACommand = TRUE; | |
2016 | } else | |
2017 | gotACommand = read_controlvm_event(&inmsg); | |
2018 | } | |
2019 | } | |
2020 | ||
2021 | handle_command_failed = FALSE; | |
2022 | while (gotACommand && (!handle_command_failed)) { | |
2023 | Most_recent_message_jiffies = jiffies; | |
2024 | if (ControlVm_channel) { | |
2025 | if (handle_command(inmsg, | |
2026 | visorchannel_get_physaddr | |
2027 | (ControlVm_channel))) | |
2028 | gotACommand = read_controlvm_event(&inmsg); | |
2029 | else { | |
2030 | /* this is a scenario where throttling | |
2031 | * is required, but probably NOT an | |
2032 | * error...; we stash the current | |
2033 | * controlvm msg so we will attempt to | |
2034 | * reprocess it on our next loop | |
2035 | */ | |
2036 | handle_command_failed = TRUE; | |
2037 | ControlVm_Pending_Msg = inmsg; | |
2038 | ControlVm_Pending_Msg_Valid = TRUE; | |
2039 | } | |
2040 | ||
2041 | } else { | |
2042 | handle_command(inmsg, 0); | |
2043 | gotACommand = FALSE; | |
2044 | } | |
2045 | } | |
2046 | ||
2047 | /* parahotplug_worker */ | |
2048 | parahotplug_process_list(); | |
2049 | ||
12e364b9 KC |
2050 | Away: |
2051 | ||
2052 | if (time_after(jiffies, | |
2053 | Most_recent_message_jiffies + (HZ * MIN_IDLE_SECONDS))) { | |
2054 | /* it's been longer than MIN_IDLE_SECONDS since we | |
2055 | * processed our last controlvm message; slow down the | |
2056 | * polling | |
2057 | */ | |
2058 | if (Poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_SLOW) { | |
2059 | LOGINF("switched to slow controlvm polling"); | |
2060 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW; | |
2061 | } | |
2062 | } else { | |
2063 | if (Poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_FAST) { | |
2064 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; | |
2065 | LOGINF("switched to fast controlvm polling"); | |
2066 | } | |
2067 | } | |
2068 | ||
4b4b535e DY |
2069 | queue_delayed_work(Periodic_controlvm_workqueue, |
2070 | &Periodic_controlvm_work, Poll_jiffies); | |
12e364b9 KC |
2071 | } |
2072 | ||
2073 | static void | |
2074 | setup_crash_devices_work_queue(struct work_struct *work) | |
2075 | { | |
2076 | ||
2077 | CONTROLVM_MESSAGE localCrashCreateBusMsg; | |
2078 | CONTROLVM_MESSAGE localCrashCreateDevMsg; | |
2079 | CONTROLVM_MESSAGE msg; | |
2080 | HOSTADDRESS host_addr; | |
2081 | U32 localSavedCrashMsgOffset; | |
2082 | U16 localSavedCrashMsgCount; | |
2083 | ||
2084 | /* make sure visorbus server is registered for controlvm callbacks */ | |
2085 | if (visorchipset_serverregwait && !serverregistered) | |
097f4c19 | 2086 | goto Away; |
12e364b9 KC |
2087 | |
2088 | /* make sure visorclientbus server is regsitered for controlvm | |
2089 | * callbacks | |
2090 | */ | |
2091 | if (visorchipset_clientregwait && !clientregistered) | |
097f4c19 | 2092 | goto Away; |
12e364b9 KC |
2093 | |
2094 | POSTCODE_LINUX_2(CRASH_DEV_ENTRY_PC, POSTCODE_SEVERITY_INFO); | |
2095 | ||
2096 | /* send init chipset msg */ | |
2097 | msg.hdr.Id = CONTROLVM_CHIPSET_INIT; | |
2098 | msg.cmd.initChipset.busCount = 23; | |
2099 | msg.cmd.initChipset.switchCount = 0; | |
2100 | ||
2101 | chipset_init(&msg); | |
2102 | ||
2103 | host_addr = controlvm_get_channel_address(); | |
2104 | if (!host_addr) { | |
2105 | LOGERR("Huh? Host address is NULL"); | |
2106 | POSTCODE_LINUX_2(CRASH_DEV_HADDR_NULL, POSTCODE_SEVERITY_ERR); | |
2107 | return; | |
2108 | } | |
2109 | ||
2110 | ControlVm_channel = | |
2111 | visorchannel_create_with_lock | |
2112 | (host_addr, | |
2113 | sizeof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL), | |
2114 | UltraControlvmChannelProtocolGuid); | |
2115 | ||
2116 | if (ControlVm_channel == NULL) { | |
2117 | LOGERR("failed to create controlvm channel"); | |
2118 | POSTCODE_LINUX_2(CRASH_DEV_CONTROLVM_NULL, | |
2119 | POSTCODE_SEVERITY_ERR); | |
2120 | return; | |
2121 | } | |
2122 | ||
2123 | /* get saved message count */ | |
2124 | if (visorchannel_read(ControlVm_channel, | |
2125 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2126 | SavedCrashMsgCount), | |
2127 | &localSavedCrashMsgCount, sizeof(U16)) < 0) { | |
2128 | LOGERR("failed to get Saved Message Count"); | |
2129 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
2130 | POSTCODE_SEVERITY_ERR); | |
2131 | return; | |
2132 | } | |
2133 | ||
2134 | if (localSavedCrashMsgCount != CONTROLVM_CRASHMSG_MAX) { | |
2135 | LOGERR("Saved Message Count incorrect %d", | |
2136 | localSavedCrashMsgCount); | |
2137 | POSTCODE_LINUX_3(CRASH_DEV_COUNT_FAILURE_PC, | |
2138 | localSavedCrashMsgCount, | |
2139 | POSTCODE_SEVERITY_ERR); | |
2140 | return; | |
2141 | } | |
2142 | ||
2143 | /* get saved crash message offset */ | |
2144 | if (visorchannel_read(ControlVm_channel, | |
2145 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2146 | SavedCrashMsgOffset), | |
2147 | &localSavedCrashMsgOffset, sizeof(U32)) < 0) { | |
2148 | LOGERR("failed to get Saved Message Offset"); | |
2149 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
2150 | POSTCODE_SEVERITY_ERR); | |
2151 | return; | |
2152 | } | |
2153 | ||
2154 | /* read create device message for storage bus offset */ | |
2155 | if (visorchannel_read(ControlVm_channel, | |
2156 | localSavedCrashMsgOffset, | |
2157 | &localCrashCreateBusMsg, | |
2158 | sizeof(CONTROLVM_MESSAGE)) < 0) { | |
2159 | LOGERR("CRASH_DEV_RD_BUS_FAIULRE: Failed to read CrashCreateBusMsg!"); | |
2160 | POSTCODE_LINUX_2(CRASH_DEV_RD_BUS_FAIULRE_PC, | |
2161 | POSTCODE_SEVERITY_ERR); | |
2162 | return; | |
2163 | } | |
2164 | ||
2165 | /* read create device message for storage device */ | |
2166 | if (visorchannel_read(ControlVm_channel, | |
2167 | localSavedCrashMsgOffset + | |
2168 | sizeof(CONTROLVM_MESSAGE), | |
2169 | &localCrashCreateDevMsg, | |
2170 | sizeof(CONTROLVM_MESSAGE)) < 0) { | |
2171 | LOGERR("CRASH_DEV_RD_DEV_FAIULRE: Failed to read CrashCreateDevMsg!"); | |
2172 | POSTCODE_LINUX_2(CRASH_DEV_RD_DEV_FAIULRE_PC, | |
2173 | POSTCODE_SEVERITY_ERR); | |
2174 | return; | |
2175 | } | |
2176 | ||
2177 | /* reuse IOVM create bus message */ | |
2178 | if (localCrashCreateBusMsg.cmd.createBus.channelAddr != 0) | |
2179 | bus_create(&localCrashCreateBusMsg); | |
2180 | else { | |
2181 | LOGERR("CrashCreateBusMsg is null, no dump will be taken"); | |
2182 | POSTCODE_LINUX_2(CRASH_DEV_BUS_NULL_FAILURE_PC, | |
2183 | POSTCODE_SEVERITY_ERR); | |
2184 | return; | |
2185 | } | |
2186 | ||
2187 | /* reuse create device message for storage device */ | |
2188 | if (localCrashCreateDevMsg.cmd.createDevice.channelAddr != 0) | |
2189 | my_device_create(&localCrashCreateDevMsg); | |
2190 | else { | |
2191 | LOGERR("CrashCreateDevMsg is null, no dump will be taken"); | |
2192 | POSTCODE_LINUX_2(CRASH_DEV_DEV_NULL_FAILURE_PC, | |
2193 | POSTCODE_SEVERITY_ERR); | |
2194 | return; | |
2195 | } | |
2196 | LOGINF("Bus and device ready for dumping"); | |
2197 | POSTCODE_LINUX_2(CRASH_DEV_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
2198 | return; | |
2199 | ||
2200 | Away: | |
2201 | ||
2202 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW; | |
2203 | ||
4b4b535e DY |
2204 | queue_delayed_work(Periodic_controlvm_workqueue, |
2205 | &Periodic_controlvm_work, Poll_jiffies); | |
12e364b9 KC |
2206 | } |
2207 | ||
2208 | static void | |
2209 | bus_create_response(ulong busNo, int response) | |
2210 | { | |
2211 | bus_responder(CONTROLVM_BUS_CREATE, busNo, response); | |
2212 | } | |
2213 | ||
2214 | static void | |
2215 | bus_destroy_response(ulong busNo, int response) | |
2216 | { | |
2217 | bus_responder(CONTROLVM_BUS_DESTROY, busNo, response); | |
2218 | } | |
2219 | ||
2220 | static void | |
2221 | device_create_response(ulong busNo, ulong devNo, int response) | |
2222 | { | |
2223 | device_responder(CONTROLVM_DEVICE_CREATE, busNo, devNo, response); | |
2224 | } | |
2225 | ||
2226 | static void | |
2227 | device_destroy_response(ulong busNo, ulong devNo, int response) | |
2228 | { | |
2229 | device_responder(CONTROLVM_DEVICE_DESTROY, busNo, devNo, response); | |
2230 | } | |
2231 | ||
2232 | void | |
927c7927 | 2233 | visorchipset_device_pause_response(ulong busNo, ulong devNo, int response) |
12e364b9 KC |
2234 | { |
2235 | ||
2236 | device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE, | |
2237 | busNo, devNo, response, | |
2238 | SegmentStateStandby); | |
2239 | } | |
927c7927 | 2240 | EXPORT_SYMBOL_GPL(visorchipset_device_pause_response); |
12e364b9 KC |
2241 | |
2242 | static void | |
2243 | device_resume_response(ulong busNo, ulong devNo, int response) | |
2244 | { | |
2245 | device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE, | |
2246 | busNo, devNo, response, | |
2247 | SegmentStateRunning); | |
2248 | } | |
2249 | ||
2250 | BOOL | |
2251 | visorchipset_get_bus_info(ulong busNo, VISORCHIPSET_BUS_INFO *busInfo) | |
2252 | { | |
2253 | void *p = findbus(&BusInfoList, busNo); | |
2254 | if (!p) { | |
2255 | LOGERR("(%lu) failed", busNo); | |
2256 | return FALSE; | |
2257 | } | |
2258 | memcpy(busInfo, p, sizeof(VISORCHIPSET_BUS_INFO)); | |
2259 | return TRUE; | |
2260 | } | |
2261 | EXPORT_SYMBOL_GPL(visorchipset_get_bus_info); | |
2262 | ||
2263 | BOOL | |
2264 | visorchipset_set_bus_context(ulong busNo, void *context) | |
2265 | { | |
2266 | VISORCHIPSET_BUS_INFO *p = findbus(&BusInfoList, busNo); | |
2267 | if (!p) { | |
2268 | LOGERR("(%lu) failed", busNo); | |
2269 | return FALSE; | |
2270 | } | |
2271 | p->bus_driver_context = context; | |
2272 | return TRUE; | |
2273 | } | |
2274 | EXPORT_SYMBOL_GPL(visorchipset_set_bus_context); | |
2275 | ||
2276 | BOOL | |
2277 | visorchipset_get_device_info(ulong busNo, ulong devNo, | |
2278 | VISORCHIPSET_DEVICE_INFO *devInfo) | |
2279 | { | |
2280 | void *p = finddevice(&DevInfoList, busNo, devNo); | |
2281 | if (!p) { | |
2282 | LOGERR("(%lu,%lu) failed", busNo, devNo); | |
2283 | return FALSE; | |
2284 | } | |
2285 | memcpy(devInfo, p, sizeof(VISORCHIPSET_DEVICE_INFO)); | |
2286 | return TRUE; | |
2287 | } | |
2288 | EXPORT_SYMBOL_GPL(visorchipset_get_device_info); | |
2289 | ||
2290 | BOOL | |
2291 | visorchipset_set_device_context(ulong busNo, ulong devNo, void *context) | |
2292 | { | |
2293 | VISORCHIPSET_DEVICE_INFO *p = finddevice(&DevInfoList, busNo, devNo); | |
2294 | if (!p) { | |
2295 | LOGERR("(%lu,%lu) failed", busNo, devNo); | |
2296 | return FALSE; | |
2297 | } | |
2298 | p->bus_driver_context = context; | |
2299 | return TRUE; | |
2300 | } | |
2301 | EXPORT_SYMBOL_GPL(visorchipset_set_device_context); | |
2302 | ||
2303 | /* Generic wrapper function for allocating memory from a kmem_cache pool. | |
2304 | */ | |
2305 | void * | |
2306 | visorchipset_cache_alloc(struct kmem_cache *pool, BOOL ok_to_block, | |
2307 | char *fn, int ln) | |
2308 | { | |
2309 | gfp_t gfp; | |
2310 | void *p; | |
2311 | ||
2312 | if (ok_to_block) | |
2313 | gfp = GFP_KERNEL; | |
2314 | else | |
2315 | gfp = GFP_ATOMIC; | |
2316 | /* __GFP_NORETRY means "ok to fail", meaning | |
2317 | * kmem_cache_alloc() can return NULL, implying the caller CAN | |
2318 | * cope with failure. If you do NOT specify __GFP_NORETRY, | |
2319 | * Linux will go to extreme measures to get memory for you | |
2320 | * (like, invoke oom killer), which will probably cripple the | |
2321 | * system. | |
2322 | */ | |
2323 | gfp |= __GFP_NORETRY; | |
2324 | p = kmem_cache_alloc(pool, gfp); | |
2325 | if (!p) { | |
2326 | LOGERR("kmem_cache_alloc failed early @%s:%d\n", fn, ln); | |
2327 | return NULL; | |
2328 | } | |
2329 | atomic_inc(&Visorchipset_cache_buffers_in_use); | |
2330 | return p; | |
2331 | } | |
2332 | ||
2333 | /* Generic wrapper function for freeing memory from a kmem_cache pool. | |
2334 | */ | |
2335 | void | |
2336 | visorchipset_cache_free(struct kmem_cache *pool, void *p, char *fn, int ln) | |
2337 | { | |
2338 | if (!p) { | |
2339 | LOGERR("NULL pointer @%s:%d\n", fn, ln); | |
2340 | return; | |
2341 | } | |
2342 | atomic_dec(&Visorchipset_cache_buffers_in_use); | |
2343 | kmem_cache_free(pool, p); | |
2344 | } | |
2345 | ||
2346 | #define gettoken(bufp) strsep(bufp, " -\t\n") | |
2347 | ||
2348 | static ssize_t | |
2349 | chipset_proc_write(struct file *file, const char __user *buffer, | |
2350 | size_t count, loff_t *ppos) | |
2351 | { | |
2352 | char buf[512]; | |
2353 | char *token, *p; | |
2354 | ||
2355 | if (count > sizeof(buf) - 1) { | |
2356 | LOGERR("chipset_proc_write: count (%d) exceeds size of buffer (%d)", | |
2357 | (int) count, (int) sizeof(buffer)); | |
2358 | return -EINVAL; | |
2359 | } | |
2360 | if (copy_from_user(buf, buffer, count)) { | |
2361 | LOGERR("chipset_proc_write: copy_from_user failed"); | |
2362 | return -EFAULT; | |
2363 | } | |
2364 | buf[count] = '\0'; | |
2365 | ||
2366 | p = buf; | |
2367 | token = gettoken(&p); | |
2368 | ||
2369 | if (strcmp(token, "CALLHOMEDISK_MOUNTED") == 0) { | |
2370 | token = gettoken(&p); | |
2371 | /* The Call Home Disk has been mounted */ | |
2372 | if (strcmp(token, "0") == 0) | |
2373 | chipset_events[0] = 1; | |
2374 | } else if (strcmp(token, "MODULES_LOADED") == 0) { | |
2375 | token = gettoken(&p); | |
2376 | /* All modules for the partition have been loaded */ | |
2377 | if (strcmp(token, "0") == 0) | |
2378 | chipset_events[1] = 1; | |
2379 | } else if (token == NULL) { | |
2380 | /* No event specified */ | |
2381 | LOGERR("No event was specified to send CHIPSET_READY response"); | |
2382 | return -1; | |
2383 | } else { | |
2384 | /* Unsupported event specified */ | |
2385 | LOGERR("%s is an invalid event for sending CHIPSET_READY response", token); | |
2386 | return -1; | |
2387 | } | |
2388 | ||
2389 | return count; | |
2390 | } | |
2391 | ||
2392 | static ssize_t | |
2393 | visorchipset_proc_read_writeonly(struct file *file, char __user *buf, | |
2394 | size_t len, loff_t *offset) | |
2395 | { | |
2396 | return 0; | |
2397 | } | |
2398 | ||
2399 | /** | |
2400 | * Reads the InstallationError, InstallationTextId, | |
2401 | * InstallationRemainingSteps fields of ControlVMChannel. | |
2402 | */ | |
2403 | static ssize_t | |
2404 | proc_read_installer(struct file *file, char __user *buf, | |
2405 | size_t len, loff_t *offset) | |
2406 | { | |
2407 | int length = 0; | |
2408 | U16 remainingSteps; | |
2409 | U32 error, textId; | |
2410 | char *vbuf; | |
2411 | loff_t pos = *offset; | |
2412 | ||
b0e27960 SL |
2413 | if (!ControlVm_channel) |
2414 | return -ENODEV; | |
2415 | ||
12e364b9 KC |
2416 | if (pos < 0) |
2417 | return -EINVAL; | |
2418 | ||
2419 | if (pos > 0 || !len) | |
2420 | return 0; | |
2421 | ||
2422 | vbuf = kzalloc(len, GFP_KERNEL); | |
2423 | if (!vbuf) | |
2424 | return -ENOMEM; | |
2425 | ||
2426 | visorchannel_read(ControlVm_channel, | |
2427 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2428 | InstallationRemainingSteps), &remainingSteps, | |
2429 | sizeof(U16)); | |
2430 | visorchannel_read(ControlVm_channel, | |
2431 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2432 | InstallationError), &error, sizeof(U32)); | |
2433 | visorchannel_read(ControlVm_channel, | |
2434 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2435 | InstallationTextId), &textId, sizeof(U32)); | |
2436 | ||
2437 | length = sprintf(vbuf, "%u %u %u\n", remainingSteps, error, textId); | |
2438 | if (copy_to_user(buf, vbuf, length)) { | |
2439 | kfree(vbuf); | |
2440 | return -EFAULT; | |
2441 | } | |
2442 | ||
2443 | kfree(vbuf); | |
2444 | *offset += length; | |
2445 | return length; | |
2446 | } | |
2447 | ||
2448 | /** | |
2449 | * Writes to the InstallationError, InstallationTextId, | |
2450 | * InstallationRemainingSteps fields of | |
2451 | * ControlVMChannel. | |
2452 | * Input: RemainingSteps Error TextId | |
2453 | * Limit 32 characters input | |
2454 | */ | |
2455 | #define UINT16_MAX (65535U) | |
2456 | #define UINT32_MAX (4294967295U) | |
2457 | static ssize_t | |
2458 | proc_write_installer(struct file *file, | |
2459 | const char __user *buffer, size_t count, loff_t *ppos) | |
2460 | { | |
2461 | char buf[32]; | |
2462 | U16 remainingSteps; | |
2463 | U32 error, textId; | |
2464 | ||
b0e27960 SL |
2465 | if (!ControlVm_channel) |
2466 | return -ENODEV; | |
2467 | ||
12e364b9 KC |
2468 | /* Check to make sure there is no buffer overflow */ |
2469 | if (count > (sizeof(buf) - 1)) | |
2470 | return -EINVAL; | |
2471 | ||
2472 | if (copy_from_user(buf, buffer, count)) { | |
2473 | WARN(1, "Error copying from user space\n"); | |
2474 | return -EFAULT; | |
2475 | } | |
2476 | ||
2477 | if (sscanf(buf, "%hu %i %i", &remainingSteps, &error, &textId) != 3) { | |
2478 | remainingSteps = UINT16_MAX; | |
2479 | error = UINT32_MAX; | |
2480 | textId = UINT32_MAX; | |
2481 | } | |
2482 | ||
2483 | if (remainingSteps != UINT16_MAX) { | |
2484 | if (visorchannel_write | |
2485 | (ControlVm_channel, | |
2486 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2487 | InstallationRemainingSteps), &remainingSteps, | |
2488 | sizeof(U16)) < 0) | |
2489 | WARN(1, "Installation Status Write Failed - Write function error - RemainingSteps = %d\n", | |
2490 | remainingSteps); | |
2491 | } | |
2492 | ||
2493 | if (error != UINT32_MAX) { | |
2494 | if (visorchannel_write | |
2495 | (ControlVm_channel, | |
2496 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2497 | InstallationError), &error, sizeof(U32)) < 0) | |
2498 | WARN(1, "Installation Status Write Failed - Write function error - Error = %d\n", | |
2499 | error); | |
2500 | } | |
2501 | ||
2502 | if (textId != UINT32_MAX) { | |
2503 | if (visorchannel_write | |
2504 | (ControlVm_channel, | |
2505 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2506 | InstallationTextId), &textId, sizeof(U32)) < 0) | |
2507 | WARN(1, "Installation Status Write Failed - Write function error - TextId = %d\n", | |
2508 | textId); | |
2509 | } | |
2510 | ||
2511 | /* So this function isn't called multiple times, must return | |
2512 | * size of buffer | |
2513 | */ | |
2514 | return count; | |
2515 | } | |
2516 | ||
2517 | /** | |
2518 | * Reads the ToolAction field of ControlVMChannel. | |
2519 | */ | |
2520 | static ssize_t | |
2521 | proc_read_toolaction(struct file *file, char __user *buf, | |
2522 | size_t len, loff_t *offset) | |
2523 | { | |
2524 | int length = 0; | |
2525 | U8 toolAction; | |
2526 | char *vbuf; | |
2527 | loff_t pos = *offset; | |
2528 | ||
b0e27960 SL |
2529 | if (!ControlVm_channel) |
2530 | return -ENODEV; | |
2531 | ||
12e364b9 KC |
2532 | if (pos < 0) |
2533 | return -EINVAL; | |
2534 | ||
2535 | if (pos > 0 || !len) | |
2536 | return 0; | |
2537 | ||
2538 | vbuf = kzalloc(len, GFP_KERNEL); | |
2539 | if (!vbuf) | |
2540 | return -ENOMEM; | |
2541 | ||
2542 | visorchannel_read(ControlVm_channel, | |
2543 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2544 | ToolAction), &toolAction, sizeof(U8)); | |
2545 | ||
2546 | length = sprintf(vbuf, "%u\n", toolAction); | |
2547 | if (copy_to_user(buf, vbuf, length)) { | |
2548 | kfree(vbuf); | |
2549 | return -EFAULT; | |
2550 | } | |
2551 | ||
2552 | kfree(vbuf); | |
2553 | *offset += length; | |
2554 | return length; | |
2555 | } | |
2556 | ||
2557 | /** | |
2558 | * Writes to the ToolAction field of ControlVMChannel. | |
2559 | * Input: ToolAction | |
2560 | * Limit 3 characters input | |
2561 | */ | |
2562 | #define UINT8_MAX (255U) | |
2563 | static ssize_t | |
2564 | proc_write_toolaction(struct file *file, | |
2565 | const char __user *buffer, size_t count, loff_t *ppos) | |
2566 | { | |
2567 | char buf[3]; | |
2568 | U8 toolAction; | |
2569 | ||
b0e27960 SL |
2570 | if (!ControlVm_channel) |
2571 | return -ENODEV; | |
2572 | ||
12e364b9 KC |
2573 | /* Check to make sure there is no buffer overflow */ |
2574 | if (count > (sizeof(buf) - 1)) | |
2575 | return -EINVAL; | |
2576 | ||
2577 | if (copy_from_user(buf, buffer, count)) { | |
2578 | WARN(1, "Error copying from user space\n"); | |
2579 | return -EFAULT; | |
2580 | } | |
2581 | ||
2582 | if (sscanf(buf, "%hhd", &toolAction) != 1) | |
2583 | toolAction = UINT8_MAX; | |
2584 | ||
2585 | if (toolAction != UINT8_MAX) { | |
2586 | if (visorchannel_write | |
2587 | (ControlVm_channel, | |
2588 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, ToolAction), | |
2589 | &toolAction, sizeof(U8)) < 0) | |
2590 | WARN(1, "Installation ToolAction Write Failed - ToolAction = %d\n", | |
2591 | toolAction); | |
2592 | } | |
2593 | ||
2594 | /* So this function isn't called multiple times, must return | |
2595 | * size of buffer | |
2596 | */ | |
2597 | return count; | |
2598 | } | |
2599 | ||
2600 | /** | |
2601 | * Reads the EfiSparIndication.BootToTool field of ControlVMChannel. | |
2602 | */ | |
2603 | static ssize_t | |
2604 | proc_read_bootToTool(struct file *file, char __user *buf, | |
2605 | size_t len, loff_t *offset) | |
2606 | { | |
2607 | int length = 0; | |
2608 | ULTRA_EFI_SPAR_INDICATION efiSparIndication; | |
2609 | char *vbuf; | |
2610 | loff_t pos = *offset; | |
2611 | ||
b0e27960 SL |
2612 | if (!ControlVm_channel) |
2613 | return -ENODEV; | |
2614 | ||
12e364b9 KC |
2615 | if (pos < 0) |
2616 | return -EINVAL; | |
2617 | ||
2618 | if (pos > 0 || !len) | |
2619 | return 0; | |
2620 | ||
2621 | vbuf = kzalloc(len, GFP_KERNEL); | |
2622 | if (!vbuf) | |
2623 | return -ENOMEM; | |
2624 | ||
2625 | visorchannel_read(ControlVm_channel, | |
2626 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2627 | EfiSparIndication), &efiSparIndication, | |
2628 | sizeof(ULTRA_EFI_SPAR_INDICATION)); | |
2629 | ||
2630 | length = sprintf(vbuf, "%d\n", (int) efiSparIndication.BootToTool); | |
2631 | if (copy_to_user(buf, vbuf, length)) { | |
2632 | kfree(vbuf); | |
2633 | return -EFAULT; | |
2634 | } | |
2635 | ||
2636 | kfree(vbuf); | |
2637 | *offset += length; | |
2638 | return length; | |
2639 | } | |
2640 | ||
2641 | /** | |
2642 | * Writes to the EfiSparIndication.BootToTool field of ControlVMChannel. | |
2643 | * Input: 1 or 0 (1 being on, 0 being off) | |
2644 | */ | |
2645 | static ssize_t | |
2646 | proc_write_bootToTool(struct file *file, | |
2647 | const char __user *buffer, size_t count, loff_t *ppos) | |
2648 | { | |
2649 | char buf[3]; | |
2650 | int inputVal; | |
2651 | ULTRA_EFI_SPAR_INDICATION efiSparIndication; | |
2652 | ||
b0e27960 SL |
2653 | if (!ControlVm_channel) |
2654 | return -ENODEV; | |
2655 | ||
12e364b9 KC |
2656 | /* Check to make sure there is no buffer overflow */ |
2657 | if (count > (sizeof(buf) - 1)) | |
2658 | return -EINVAL; | |
2659 | ||
2660 | if (copy_from_user(buf, buffer, count)) { | |
2661 | WARN(1, "Error copying from user space\n"); | |
2662 | return -EFAULT; | |
2663 | } | |
2664 | ||
2665 | if (sscanf(buf, "%i", &inputVal) != 1) | |
2666 | inputVal = 0; | |
2667 | ||
2668 | efiSparIndication.BootToTool = (inputVal == 1 ? 1 : 0); | |
2669 | ||
2670 | if (visorchannel_write | |
2671 | (ControlVm_channel, | |
2672 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, EfiSparIndication), | |
2673 | &efiSparIndication, sizeof(ULTRA_EFI_SPAR_INDICATION)) < 0) | |
2674 | printk | |
2675 | ("Installation BootToTool Write Failed - BootToTool = %d\n", | |
2676 | (int) efiSparIndication.BootToTool); | |
2677 | ||
2678 | /* So this function isn't called multiple times, must return | |
2679 | * size of buffer | |
2680 | */ | |
2681 | return count; | |
2682 | } | |
2683 | ||
2684 | static const struct file_operations chipset_proc_fops = { | |
2685 | .owner = THIS_MODULE, | |
2686 | .read = visorchipset_proc_read_writeonly, | |
2687 | .write = chipset_proc_write, | |
2688 | }; | |
2689 | ||
2690 | static int __init | |
2691 | visorchipset_init(void) | |
2692 | { | |
2693 | int rc = 0, x = 0; | |
2694 | struct proc_dir_entry *installer_file; | |
2695 | struct proc_dir_entry *toolaction_file; | |
2696 | struct proc_dir_entry *bootToTool_file; | |
2697 | ||
fcd0157e KC |
2698 | if (!unisys_spar_platform) |
2699 | return -ENODEV; | |
2700 | ||
12e364b9 KC |
2701 | LOGINF("chipset driver version %s loaded", VERSION); |
2702 | /* process module options */ | |
2703 | POSTCODE_LINUX_2(DRIVER_ENTRY_PC, POSTCODE_SEVERITY_INFO); | |
2704 | ||
2705 | LOGINF("option - testvnic=%d", visorchipset_testvnic); | |
2706 | LOGINF("option - testvnicclient=%d", visorchipset_testvnicclient); | |
2707 | LOGINF("option - testmsg=%d", visorchipset_testmsg); | |
2708 | LOGINF("option - testteardown=%d", visorchipset_testteardown); | |
2709 | LOGINF("option - major=%d", visorchipset_major); | |
2710 | LOGINF("option - serverregwait=%d", visorchipset_serverregwait); | |
2711 | LOGINF("option - clientregwait=%d", visorchipset_clientregwait); | |
2712 | LOGINF("option - holdchipsetready=%d", visorchipset_holdchipsetready); | |
2713 | ||
2714 | memset(&BusDev_Server_Notifiers, 0, sizeof(BusDev_Server_Notifiers)); | |
2715 | memset(&BusDev_Client_Notifiers, 0, sizeof(BusDev_Client_Notifiers)); | |
2716 | memset(&ControlVm_payload_info, 0, sizeof(ControlVm_payload_info)); | |
2717 | memset(&LiveDump_info, 0, sizeof(LiveDump_info)); | |
2718 | atomic_set(&LiveDump_info.buffers_in_use, 0); | |
2719 | ||
9f8d0e8b KC |
2720 | if (visorchipset_testvnic) { |
2721 | ERRDRV("testvnic option no longer supported: (status = %d)\n", | |
2722 | x); | |
2723 | POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, x, DIAG_SEVERITY_ERR); | |
2724 | rc = x; | |
2725 | goto Away; | |
2726 | } | |
12e364b9 KC |
2727 | |
2728 | controlvm_init(); | |
2729 | MajorDev = MKDEV(visorchipset_major, 0); | |
9f8d0e8b | 2730 | rc = visorchipset_file_init(MajorDev, &ControlVm_channel); |
4cb005a9 KC |
2731 | if (rc < 0) { |
2732 | ERRDRV("visorchipset_file_init(MajorDev, &ControlVm_channel): error (status=%d)\n", rc); | |
2733 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2734 | goto Away; | |
2735 | } | |
9f8d0e8b | 2736 | |
12e364b9 KC |
2737 | proc_Init(); |
2738 | memset(PartitionPropertyNames, 0, sizeof(PartitionPropertyNames)); | |
2739 | memset(ControlVmPropertyNames, 0, sizeof(ControlVmPropertyNames)); | |
2740 | InitPartitionProperties(); | |
2741 | InitControlVmProperties(); | |
2742 | ||
927c7927 KC |
2743 | PartitionType = visor_proc_CreateType(ProcDir, PartitionTypeNames, |
2744 | (const char **) | |
2745 | PartitionPropertyNames, | |
2746 | &show_partition_property); | |
12e364b9 | 2747 | ControlVmType = |
927c7927 KC |
2748 | visor_proc_CreateType(ProcDir, ControlVmTypeNames, |
2749 | (const char **) ControlVmPropertyNames, | |
2750 | &show_controlvm_property); | |
12e364b9 | 2751 | |
927c7927 | 2752 | ControlVmObject = visor_proc_CreateObject(ControlVmType, NULL, NULL); |
12e364b9 KC |
2753 | |
2754 | /* Setup Installation fields */ | |
2755 | installer_file = proc_create("installer", 0644, ProcDir, | |
2756 | &proc_installer_fops); | |
2757 | /* Setup the ToolAction field */ | |
2758 | toolaction_file = proc_create("toolaction", 0644, ProcDir, | |
2759 | &proc_toolaction_fops); | |
2760 | /* Setup the BootToTool field */ | |
2761 | bootToTool_file = proc_create("boottotool", 0644, ProcDir, | |
2762 | &proc_bootToTool_fops); | |
2763 | ||
2764 | memset(&g_DiagMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2765 | ||
2766 | chipset_proc_dir = proc_create(VISORCHIPSET_CHIPSET_PROC_ENTRY_FN, | |
2767 | 0644, ProcDir, &chipset_proc_fops); | |
2768 | memset(&g_ChipSetMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2769 | ||
2770 | parahotplug_proc_dir = | |
2771 | proc_create(VISORCHIPSET_PARAHOTPLUG_PROC_ENTRY_FN, 0200, | |
2772 | ProcDir, ¶hotplug_proc_fops); | |
2773 | memset(&g_DelDumpMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2774 | ||
12e364b9 KC |
2775 | Putfile_buffer_list_pool = |
2776 | kmem_cache_create(Putfile_buffer_list_pool_name, | |
2777 | sizeof(struct putfile_buffer_entry), | |
2778 | 0, SLAB_HWCACHE_ALIGN, NULL); | |
2779 | if (!Putfile_buffer_list_pool) { | |
4cb005a9 KC |
2780 | ERRDRV("failed to alloc Putfile_buffer_list_pool: (status=-1)\n"); |
2781 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2782 | rc = -1; | |
2783 | goto Away; | |
12e364b9 KC |
2784 | } |
2785 | if (visorchipset_disable_controlvm) { | |
2786 | LOGINF("visorchipset_init:controlvm disabled"); | |
2787 | } else { | |
2788 | /* if booting in a crash kernel */ | |
2789 | if (visorchipset_crash_kernel) | |
2790 | INIT_DELAYED_WORK(&Periodic_controlvm_work, | |
2791 | setup_crash_devices_work_queue); | |
2792 | else | |
2793 | INIT_DELAYED_WORK(&Periodic_controlvm_work, | |
2794 | controlvm_periodic_work); | |
2795 | Periodic_controlvm_workqueue = | |
2796 | create_singlethread_workqueue("visorchipset_controlvm"); | |
2797 | ||
4cb005a9 KC |
2798 | if (Periodic_controlvm_workqueue == NULL) { |
2799 | ERRDRV("cannot create controlvm workqueue: (status=%d)\n", | |
2800 | -ENOMEM); | |
2801 | POSTCODE_LINUX_2(CREATE_WORKQUEUE_FAILED_PC, | |
2802 | DIAG_SEVERITY_ERR); | |
2803 | rc = -ENOMEM; | |
2804 | goto Away; | |
2805 | } | |
12e364b9 KC |
2806 | Most_recent_message_jiffies = jiffies; |
2807 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; | |
9f8d0e8b KC |
2808 | rc = queue_delayed_work(Periodic_controlvm_workqueue, |
2809 | &Periodic_controlvm_work, Poll_jiffies); | |
4cb005a9 KC |
2810 | if (rc < 0) { |
2811 | ERRDRV("queue_delayed_work(Periodic_controlvm_workqueue, &Periodic_controlvm_work, Poll_jiffies): error (status=%d)\n", rc); | |
2812 | POSTCODE_LINUX_2(QUEUE_DELAYED_WORK_PC, | |
2813 | DIAG_SEVERITY_ERR); | |
2814 | goto Away; | |
2815 | } | |
9f8d0e8b | 2816 | |
12e364b9 KC |
2817 | } |
2818 | ||
2819 | Visorchipset_platform_device.dev.devt = MajorDev; | |
4cb005a9 KC |
2820 | if (platform_device_register(&Visorchipset_platform_device) < 0) { |
2821 | ERRDRV("platform_device_register(visorchipset) failed: (status=-1)\n"); | |
2822 | POSTCODE_LINUX_2(DEVICE_REGISTER_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2823 | rc = -1; | |
2824 | goto Away; | |
2825 | } | |
12e364b9 KC |
2826 | LOGINF("visorchipset device created"); |
2827 | POSTCODE_LINUX_2(CHIPSET_INIT_SUCCESS_PC, POSTCODE_SEVERITY_INFO); | |
22ad57ba | 2828 | rc = 0; |
12e364b9 | 2829 | Away: |
12e364b9 KC |
2830 | if (rc) { |
2831 | LOGERR("visorchipset_init failed"); | |
2832 | POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, rc, | |
2833 | POSTCODE_SEVERITY_ERR); | |
2834 | } | |
2835 | return rc; | |
2836 | } | |
2837 | ||
2838 | static void | |
2839 | visorchipset_exit(void) | |
2840 | { | |
2841 | char s[99]; | |
2842 | POSTCODE_LINUX_2(DRIVER_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
2843 | ||
2844 | if (visorchipset_disable_controlvm) { | |
2845 | ; | |
2846 | } else { | |
2847 | cancel_delayed_work(&Periodic_controlvm_work); | |
2848 | flush_workqueue(Periodic_controlvm_workqueue); | |
2849 | destroy_workqueue(Periodic_controlvm_workqueue); | |
2850 | Periodic_controlvm_workqueue = NULL; | |
2851 | destroy_controlvm_payload_info(&ControlVm_payload_info); | |
2852 | } | |
2853 | Test_Vnic_channel = NULL; | |
2854 | if (Putfile_buffer_list_pool) { | |
2855 | kmem_cache_destroy(Putfile_buffer_list_pool); | |
2856 | Putfile_buffer_list_pool = NULL; | |
2857 | } | |
12e364b9 | 2858 | if (ControlVmObject) { |
927c7927 | 2859 | visor_proc_DestroyObject(ControlVmObject); |
12e364b9 KC |
2860 | ControlVmObject = NULL; |
2861 | } | |
2862 | cleanup_controlvm_structures(); | |
2863 | ||
2864 | if (ControlVmType) { | |
927c7927 | 2865 | visor_proc_DestroyType(ControlVmType); |
12e364b9 KC |
2866 | ControlVmType = NULL; |
2867 | } | |
2868 | if (PartitionType) { | |
927c7927 | 2869 | visor_proc_DestroyType(PartitionType); |
12e364b9 KC |
2870 | PartitionType = NULL; |
2871 | } | |
2872 | if (diag_proc_dir) { | |
2873 | remove_proc_entry(VISORCHIPSET_DIAG_PROC_ENTRY_FN, ProcDir); | |
2874 | diag_proc_dir = NULL; | |
2875 | } | |
2876 | memset(&g_DiagMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2877 | ||
2878 | if (chipset_proc_dir) { | |
2879 | remove_proc_entry(VISORCHIPSET_CHIPSET_PROC_ENTRY_FN, ProcDir); | |
2880 | chipset_proc_dir = NULL; | |
2881 | } | |
2882 | memset(&g_ChipSetMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2883 | ||
2884 | if (parahotplug_proc_dir) { | |
2885 | remove_proc_entry(VISORCHIPSET_PARAHOTPLUG_PROC_ENTRY_FN, | |
2886 | ProcDir); | |
2887 | parahotplug_proc_dir = NULL; | |
2888 | } | |
2889 | ||
2890 | memset(&g_DelDumpMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2891 | ||
2892 | proc_DeInit(); | |
2893 | if (ControlVm_channel != NULL) { | |
2894 | LOGINF("Channel %s (ControlVm) disconnected", | |
2895 | visorchannel_id(ControlVm_channel, s)); | |
2896 | visorchannel_destroy(ControlVm_channel); | |
2897 | ControlVm_channel = NULL; | |
2898 | } | |
2899 | controlvm_deinit(); | |
2900 | visorchipset_file_cleanup(); | |
2901 | POSTCODE_LINUX_2(DRIVER_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
2902 | LOGINF("chipset driver unloaded"); | |
2903 | } | |
2904 | ||
2905 | module_param_named(testvnic, visorchipset_testvnic, int, S_IRUGO); | |
2906 | MODULE_PARM_DESC(visorchipset_testvnic, "1 to test vnic, using dummy VNIC connected via a loopback to a physical ethernet"); | |
2907 | int visorchipset_testvnic = 0; | |
2908 | ||
2909 | module_param_named(testvnicclient, visorchipset_testvnicclient, int, S_IRUGO); | |
2910 | MODULE_PARM_DESC(visorchipset_testvnicclient, "1 to test vnic, using real VNIC channel attached to a separate IOVM guest"); | |
2911 | int visorchipset_testvnicclient = 0; | |
2912 | ||
2913 | module_param_named(testmsg, visorchipset_testmsg, int, S_IRUGO); | |
2914 | MODULE_PARM_DESC(visorchipset_testmsg, | |
2915 | "1 to manufacture the chipset, bus, and switch messages"); | |
2916 | int visorchipset_testmsg = 0; | |
2917 | ||
2918 | module_param_named(major, visorchipset_major, int, S_IRUGO); | |
2919 | MODULE_PARM_DESC(visorchipset_major, "major device number to use for the device node"); | |
2920 | int visorchipset_major = 0; | |
2921 | ||
2922 | module_param_named(serverregwait, visorchipset_serverregwait, int, S_IRUGO); | |
2923 | MODULE_PARM_DESC(visorchipset_serverreqwait, | |
2924 | "1 to have the module wait for the visor bus to register"); | |
2925 | int visorchipset_serverregwait = 0; /* default is off */ | |
2926 | module_param_named(clientregwait, visorchipset_clientregwait, int, S_IRUGO); | |
2927 | MODULE_PARM_DESC(visorchipset_clientregwait, "1 to have the module wait for the visorclientbus to register"); | |
2928 | int visorchipset_clientregwait = 1; /* default is on */ | |
2929 | module_param_named(testteardown, visorchipset_testteardown, int, S_IRUGO); | |
2930 | MODULE_PARM_DESC(visorchipset_testteardown, | |
2931 | "1 to test teardown of the chipset, bus, and switch"); | |
2932 | int visorchipset_testteardown = 0; /* default is off */ | |
2933 | module_param_named(disable_controlvm, visorchipset_disable_controlvm, int, | |
2934 | S_IRUGO); | |
2935 | MODULE_PARM_DESC(visorchipset_disable_controlvm, | |
2936 | "1 to disable polling of controlVm channel"); | |
2937 | int visorchipset_disable_controlvm = 0; /* default is off */ | |
2938 | module_param_named(crash_kernel, visorchipset_crash_kernel, int, S_IRUGO); | |
2939 | MODULE_PARM_DESC(visorchipset_crash_kernel, | |
2940 | "1 means we are running in crash kernel"); | |
2941 | int visorchipset_crash_kernel = 0; /* default is running in non-crash kernel */ | |
2942 | module_param_named(holdchipsetready, visorchipset_holdchipsetready, | |
2943 | int, S_IRUGO); | |
2944 | MODULE_PARM_DESC(visorchipset_holdchipsetready, | |
2945 | "1 to hold response to CHIPSET_READY"); | |
2946 | int visorchipset_holdchipsetready = 0; /* default is to send CHIPSET_READY | |
2947 | * response immediately */ | |
2948 | module_init(visorchipset_init); | |
2949 | module_exit(visorchipset_exit); | |
2950 | ||
2951 | MODULE_AUTHOR("Unisys"); | |
2952 | MODULE_LICENSE("GPL"); | |
2953 | MODULE_DESCRIPTION("Supervisor chipset driver for service partition: ver " | |
2954 | VERSION); | |
2955 | MODULE_VERSION(VERSION); |