blob: a13cf7ec64b2b0e0ab558694e4d77e8487a9ab36 [file] [log] [blame]
Jan Glauber779e6e12008-07-17 17:16:48 +02001/*
2 * driver/s390/cio/qdio_setup.c
3 *
4 * qdio queue initialization
5 *
6 * Copyright (C) IBM Corp. 2008
7 * Author(s): Jan Glauber <jang@linux.vnet.ibm.com>
8 */
9#include <linux/kernel.h>
10#include <linux/slab.h>
11#include <asm/qdio.h>
12
13#include "cio.h"
14#include "css.h"
15#include "device.h"
16#include "ioasm.h"
17#include "chsc.h"
18#include "qdio.h"
19#include "qdio_debug.h"
20
21static struct kmem_cache *qdio_q_cache;
22
23/*
24 * qebsm is only available under 64bit but the adapter sets the feature
25 * flag anyway, so we manually override it.
26 */
27static inline int qebsm_possible(void)
28{
29#ifdef CONFIG_64BIT
30 return css_general_characteristics.qebsm;
31#endif
32 return 0;
33}
34
35/*
36 * qib_param_field: pointer to 128 bytes or NULL, if no param field
37 * nr_input_qs: pointer to nr_queues*128 words of data or NULL
38 */
39static void set_impl_params(struct qdio_irq *irq_ptr,
40 unsigned int qib_param_field_format,
41 unsigned char *qib_param_field,
42 unsigned long *input_slib_elements,
43 unsigned long *output_slib_elements)
44{
45 struct qdio_q *q;
46 int i, j;
47
48 if (!irq_ptr)
49 return;
50
Jan Glauber779e6e12008-07-17 17:16:48 +020051 irq_ptr->qib.pfmt = qib_param_field_format;
52 if (qib_param_field)
53 memcpy(irq_ptr->qib.parm, qib_param_field,
54 QDIO_MAX_BUFFERS_PER_Q);
55
56 if (!input_slib_elements)
57 goto output;
58
59 for_each_input_queue(irq_ptr, q, i) {
60 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
61 q->slib->slibe[j].parms =
62 input_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j];
63 }
64output:
65 if (!output_slib_elements)
66 return;
67
68 for_each_output_queue(irq_ptr, q, i) {
69 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
70 q->slib->slibe[j].parms =
71 output_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j];
72 }
73}
74
75static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues)
76{
77 struct qdio_q *q;
78 int i;
79
80 for (i = 0; i < nr_queues; i++) {
81 q = kmem_cache_alloc(qdio_q_cache, GFP_KERNEL);
82 if (!q)
83 return -ENOMEM;
Jan Glauber779e6e12008-07-17 17:16:48 +020084
85 q->slib = (struct slib *) __get_free_page(GFP_KERNEL);
86 if (!q->slib) {
87 kmem_cache_free(qdio_q_cache, q);
88 return -ENOMEM;
89 }
Jan Glauber779e6e12008-07-17 17:16:48 +020090 irq_ptr_qs[i] = q;
91 }
92 return 0;
93}
94
95int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs, int nr_output_qs)
96{
97 int rc;
98
99 rc = __qdio_allocate_qs(irq_ptr->input_qs, nr_input_qs);
100 if (rc)
101 return rc;
102 rc = __qdio_allocate_qs(irq_ptr->output_qs, nr_output_qs);
103 return rc;
104}
105
106static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr,
107 qdio_handler_t *handler, int i)
108{
Jan Glauber5382fe12010-05-17 10:00:16 +0200109 struct slib *slib = q->slib;
Jan Glauber779e6e12008-07-17 17:16:48 +0200110
Jan Glauber5382fe12010-05-17 10:00:16 +0200111 /* queue must be cleared for qdio_establish */
112 memset(q, 0, sizeof(*q));
113 memset(slib, 0, PAGE_SIZE);
114 q->slib = slib;
Jan Glauber779e6e12008-07-17 17:16:48 +0200115 q->irq_ptr = irq_ptr;
116 q->mask = 1 << (31 - i);
117 q->nr = i;
118 q->handler = handler;
119}
120
121static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
Jan Glauber22f99342008-12-25 13:38:46 +0100122 void **sbals_array, int i)
Jan Glauber779e6e12008-07-17 17:16:48 +0200123{
124 struct qdio_q *prev;
125 int j;
126
Jan Glauber22f99342008-12-25 13:38:46 +0100127 DBF_HEX(&q, sizeof(void *));
Jan Glauber779e6e12008-07-17 17:16:48 +0200128 q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2);
129
130 /* fill in sbal */
131 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) {
132 q->sbal[j] = *sbals_array++;
Jan Glauber78830972009-12-18 17:43:25 +0100133 BUG_ON((unsigned long)q->sbal[j] & 0xff);
Jan Glauber779e6e12008-07-17 17:16:48 +0200134 }
135
136 /* fill in slib */
137 if (i > 0) {
138 prev = (q->is_input_q) ? irq_ptr->input_qs[i - 1]
139 : irq_ptr->output_qs[i - 1];
140 prev->slib->nsliba = (unsigned long)q->slib;
141 }
142
143 q->slib->sla = (unsigned long)q->sl;
144 q->slib->slsba = (unsigned long)&q->slsb.val[0];
145
146 /* fill in sl */
147 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
148 q->sl->element[j].sbal = (unsigned long)q->sbal[j];
Jan Glauber779e6e12008-07-17 17:16:48 +0200149}
150
151static void setup_queues(struct qdio_irq *irq_ptr,
152 struct qdio_initialize *qdio_init)
153{
Jan Glauber779e6e12008-07-17 17:16:48 +0200154 struct qdio_q *q;
155 void **input_sbal_array = qdio_init->input_sbal_addr_array;
156 void **output_sbal_array = qdio_init->output_sbal_addr_array;
157 int i;
158
Jan Glauber779e6e12008-07-17 17:16:48 +0200159 for_each_input_queue(irq_ptr, q, i) {
Jan Glauber22f99342008-12-25 13:38:46 +0100160 DBF_EVENT("in-q:%1d", i);
Jan Glauber779e6e12008-07-17 17:16:48 +0200161 setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i);
162
163 q->is_input_q = 1;
Jan Glauberd36deae2010-09-07 21:14:39 +0000164 q->u.in.queue_start_poll = qdio_init->queue_start_poll;
Jan Glauber22f99342008-12-25 13:38:46 +0100165 setup_storage_lists(q, irq_ptr, input_sbal_array, i);
Jan Glauber779e6e12008-07-17 17:16:48 +0200166 input_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
167
168 if (is_thinint_irq(irq_ptr))
169 tasklet_init(&q->tasklet, tiqdio_inbound_processing,
170 (unsigned long) q);
171 else
172 tasklet_init(&q->tasklet, qdio_inbound_processing,
173 (unsigned long) q);
174 }
175
176 for_each_output_queue(irq_ptr, q, i) {
Jan Glauber22f99342008-12-25 13:38:46 +0100177 DBF_EVENT("outq:%1d", i);
Jan Glauber779e6e12008-07-17 17:16:48 +0200178 setup_queues_misc(q, irq_ptr, qdio_init->output_handler, i);
179
180 q->is_input_q = 0;
Jan Glauber22f99342008-12-25 13:38:46 +0100181 setup_storage_lists(q, irq_ptr, output_sbal_array, i);
Jan Glauber779e6e12008-07-17 17:16:48 +0200182 output_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
183
184 tasklet_init(&q->tasklet, qdio_outbound_processing,
185 (unsigned long) q);
186 setup_timer(&q->u.out.timer, (void(*)(unsigned long))
187 &qdio_outbound_timer, (unsigned long)q);
188 }
189}
190
191static void process_ac_flags(struct qdio_irq *irq_ptr, unsigned char qdioac)
192{
193 if (qdioac & AC1_SIGA_INPUT_NEEDED)
194 irq_ptr->siga_flag.input = 1;
195 if (qdioac & AC1_SIGA_OUTPUT_NEEDED)
196 irq_ptr->siga_flag.output = 1;
197 if (qdioac & AC1_SIGA_SYNC_NEEDED)
198 irq_ptr->siga_flag.sync = 1;
199 if (qdioac & AC1_AUTOMATIC_SYNC_ON_THININT)
200 irq_ptr->siga_flag.no_sync_ti = 1;
201 if (qdioac & AC1_AUTOMATIC_SYNC_ON_OUT_PCI)
202 irq_ptr->siga_flag.no_sync_out_pci = 1;
203
204 if (irq_ptr->siga_flag.no_sync_out_pci &&
205 irq_ptr->siga_flag.no_sync_ti)
206 irq_ptr->siga_flag.no_sync_out_ti = 1;
207}
208
209static void check_and_setup_qebsm(struct qdio_irq *irq_ptr,
210 unsigned char qdioac, unsigned long token)
211{
Jan Glauber779e6e12008-07-17 17:16:48 +0200212 if (!(irq_ptr->qib.rflags & QIB_RFLAGS_ENABLE_QEBSM))
213 goto no_qebsm;
214 if (!(qdioac & AC1_SC_QEBSM_AVAILABLE) ||
215 (!(qdioac & AC1_SC_QEBSM_ENABLED)))
216 goto no_qebsm;
217
218 irq_ptr->sch_token = token;
219
Jan Glauber22f99342008-12-25 13:38:46 +0100220 DBF_EVENT("V=V:1");
221 DBF_EVENT("%8lx", irq_ptr->sch_token);
Jan Glauber779e6e12008-07-17 17:16:48 +0200222 return;
223
224no_qebsm:
225 irq_ptr->sch_token = 0;
226 irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM;
Jan Glauber22f99342008-12-25 13:38:46 +0100227 DBF_EVENT("noV=V");
Jan Glauber779e6e12008-07-17 17:16:48 +0200228}
229
Jan Glauberbbd50e12008-12-25 13:38:43 +0100230/*
231 * If there is a qdio_irq we use the chsc_page and store the information
232 * in the qdio_irq, otherwise we copy it to the specified structure.
233 */
234int qdio_setup_get_ssqd(struct qdio_irq *irq_ptr,
235 struct subchannel_id *schid,
236 struct qdio_ssqd_desc *data)
Jan Glauber779e6e12008-07-17 17:16:48 +0200237{
238 struct chsc_ssqd_area *ssqd;
239 int rc;
240
Jan Glauber22f99342008-12-25 13:38:46 +0100241 DBF_EVENT("getssqd:%4x", schid->sch_no);
Jan Glauberbbd50e12008-12-25 13:38:43 +0100242 if (irq_ptr != NULL)
243 ssqd = (struct chsc_ssqd_area *)irq_ptr->chsc_page;
244 else
245 ssqd = (struct chsc_ssqd_area *)__get_free_page(GFP_KERNEL);
Jan Glauber779e6e12008-07-17 17:16:48 +0200246 memset(ssqd, 0, PAGE_SIZE);
247
248 ssqd->request = (struct chsc_header) {
249 .length = 0x0010,
250 .code = 0x0024,
251 };
Jan Glauberbbd50e12008-12-25 13:38:43 +0100252 ssqd->first_sch = schid->sch_no;
253 ssqd->last_sch = schid->sch_no;
254 ssqd->ssid = schid->ssid;
Jan Glauber779e6e12008-07-17 17:16:48 +0200255
256 if (chsc(ssqd))
257 return -EIO;
258 rc = chsc_error_from_response(ssqd->response.code);
259 if (rc)
260 return rc;
261
262 if (!(ssqd->qdio_ssqd.flags & CHSC_FLAG_QDIO_CAPABILITY) ||
263 !(ssqd->qdio_ssqd.flags & CHSC_FLAG_VALIDITY) ||
Jan Glauberbbd50e12008-12-25 13:38:43 +0100264 (ssqd->qdio_ssqd.sch != schid->sch_no))
Jan Glauber779e6e12008-07-17 17:16:48 +0200265 return -EINVAL;
266
Jan Glauberbbd50e12008-12-25 13:38:43 +0100267 if (irq_ptr != NULL)
268 memcpy(&irq_ptr->ssqd_desc, &ssqd->qdio_ssqd,
269 sizeof(struct qdio_ssqd_desc));
270 else {
271 memcpy(data, &ssqd->qdio_ssqd,
272 sizeof(struct qdio_ssqd_desc));
273 free_page((unsigned long)ssqd);
274 }
Jan Glauber779e6e12008-07-17 17:16:48 +0200275 return 0;
276}
277
278void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
279{
280 unsigned char qdioac;
Jan Glauber779e6e12008-07-17 17:16:48 +0200281 int rc;
282
Jan Glauberbbd50e12008-12-25 13:38:43 +0100283 rc = qdio_setup_get_ssqd(irq_ptr, &irq_ptr->schid, NULL);
Jan Glauber779e6e12008-07-17 17:16:48 +0200284 if (rc) {
Jan Glauber22f99342008-12-25 13:38:46 +0100285 DBF_ERROR("%4x ssqd ERR", irq_ptr->schid.sch_no);
286 DBF_ERROR("rc:%x", rc);
Jan Glauber779e6e12008-07-17 17:16:48 +0200287 /* all flags set, worst case */
288 qdioac = AC1_SIGA_INPUT_NEEDED | AC1_SIGA_OUTPUT_NEEDED |
289 AC1_SIGA_SYNC_NEEDED;
290 } else
291 qdioac = irq_ptr->ssqd_desc.qdioac1;
292
293 check_and_setup_qebsm(irq_ptr, qdioac, irq_ptr->ssqd_desc.sch_token);
294 process_ac_flags(irq_ptr, qdioac);
Jan Glauber22f99342008-12-25 13:38:46 +0100295 DBF_EVENT("qdioac:%4x", qdioac);
Jan Glauber779e6e12008-07-17 17:16:48 +0200296}
297
298void qdio_release_memory(struct qdio_irq *irq_ptr)
299{
300 struct qdio_q *q;
301 int i;
302
303 /*
304 * Must check queue array manually since irq_ptr->nr_input_queues /
305 * irq_ptr->nr_input_queues may not yet be set.
306 */
307 for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) {
308 q = irq_ptr->input_qs[i];
309 if (q) {
310 free_page((unsigned long) q->slib);
311 kmem_cache_free(qdio_q_cache, q);
312 }
313 }
314 for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) {
315 q = irq_ptr->output_qs[i];
316 if (q) {
317 free_page((unsigned long) q->slib);
318 kmem_cache_free(qdio_q_cache, q);
319 }
320 }
Jan Glauber3b8e3002008-08-01 16:39:17 +0200321 free_page((unsigned long) irq_ptr->qdr);
Jan Glauber779e6e12008-07-17 17:16:48 +0200322 free_page(irq_ptr->chsc_page);
323 free_page((unsigned long) irq_ptr);
324}
325
326static void __qdio_allocate_fill_qdr(struct qdio_irq *irq_ptr,
327 struct qdio_q **irq_ptr_qs,
328 int i, int nr)
329{
330 irq_ptr->qdr->qdf0[i + nr].sliba =
331 (unsigned long)irq_ptr_qs[i]->slib;
332
333 irq_ptr->qdr->qdf0[i + nr].sla =
334 (unsigned long)irq_ptr_qs[i]->sl;
335
336 irq_ptr->qdr->qdf0[i + nr].slsba =
337 (unsigned long)&irq_ptr_qs[i]->slsb.val[0];
338
Heiko Carstensd1bf8592010-02-26 22:37:30 +0100339 irq_ptr->qdr->qdf0[i + nr].akey = PAGE_DEFAULT_KEY >> 4;
340 irq_ptr->qdr->qdf0[i + nr].bkey = PAGE_DEFAULT_KEY >> 4;
341 irq_ptr->qdr->qdf0[i + nr].ckey = PAGE_DEFAULT_KEY >> 4;
342 irq_ptr->qdr->qdf0[i + nr].dkey = PAGE_DEFAULT_KEY >> 4;
Jan Glauber779e6e12008-07-17 17:16:48 +0200343}
344
345static void setup_qdr(struct qdio_irq *irq_ptr,
346 struct qdio_initialize *qdio_init)
347{
348 int i;
349
350 irq_ptr->qdr->qfmt = qdio_init->q_format;
351 irq_ptr->qdr->iqdcnt = qdio_init->no_input_qs;
352 irq_ptr->qdr->oqdcnt = qdio_init->no_output_qs;
353 irq_ptr->qdr->iqdsz = sizeof(struct qdesfmt0) / 4; /* size in words */
354 irq_ptr->qdr->oqdsz = sizeof(struct qdesfmt0) / 4;
355 irq_ptr->qdr->qiba = (unsigned long)&irq_ptr->qib;
Heiko Carstensd1bf8592010-02-26 22:37:30 +0100356 irq_ptr->qdr->qkey = PAGE_DEFAULT_KEY >> 4;
Jan Glauber779e6e12008-07-17 17:16:48 +0200357
358 for (i = 0; i < qdio_init->no_input_qs; i++)
359 __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->input_qs, i, 0);
360
361 for (i = 0; i < qdio_init->no_output_qs; i++)
362 __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->output_qs, i,
363 qdio_init->no_input_qs);
364}
365
366static void setup_qib(struct qdio_irq *irq_ptr,
367 struct qdio_initialize *init_data)
368{
369 if (qebsm_possible())
370 irq_ptr->qib.rflags |= QIB_RFLAGS_ENABLE_QEBSM;
371
Christof Schmittdcc18f42010-07-16 15:37:41 +0200372 irq_ptr->qib.rflags |= init_data->qib_rflags;
373
Jan Glauber779e6e12008-07-17 17:16:48 +0200374 irq_ptr->qib.qfmt = init_data->q_format;
375 if (init_data->no_input_qs)
376 irq_ptr->qib.isliba =
377 (unsigned long)(irq_ptr->input_qs[0]->slib);
378 if (init_data->no_output_qs)
379 irq_ptr->qib.osliba =
380 (unsigned long)(irq_ptr->output_qs[0]->slib);
381 memcpy(irq_ptr->qib.ebcnam, init_data->adapter_name, 8);
382}
383
384int qdio_setup_irq(struct qdio_initialize *init_data)
385{
386 struct ciw *ciw;
387 struct qdio_irq *irq_ptr = init_data->cdev->private->qdio_data;
388 int rc;
389
Jan Glauber432ac5e2010-02-26 22:37:37 +0100390 memset(&irq_ptr->qib, 0, sizeof(irq_ptr->qib));
391 memset(&irq_ptr->siga_flag, 0, sizeof(irq_ptr->siga_flag));
392 memset(&irq_ptr->ccw, 0, sizeof(irq_ptr->ccw));
393 memset(&irq_ptr->ssqd_desc, 0, sizeof(irq_ptr->ssqd_desc));
394 memset(&irq_ptr->perf_stat, 0, sizeof(irq_ptr->perf_stat));
395
396 irq_ptr->debugfs_dev = irq_ptr->debugfs_perf = NULL;
397 irq_ptr->sch_token = irq_ptr->state = irq_ptr->perf_stat_enabled = 0;
398
Jan Glauber779e6e12008-07-17 17:16:48 +0200399 /* wipes qib.ac, required by ar7063 */
400 memset(irq_ptr->qdr, 0, sizeof(struct qdr));
401
402 irq_ptr->int_parm = init_data->int_parm;
403 irq_ptr->nr_input_qs = init_data->no_input_qs;
404 irq_ptr->nr_output_qs = init_data->no_output_qs;
405
406 irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev);
407 irq_ptr->cdev = init_data->cdev;
408 setup_queues(irq_ptr, init_data);
409
410 setup_qib(irq_ptr, init_data);
411 qdio_setup_thinint(irq_ptr);
412 set_impl_params(irq_ptr, init_data->qib_param_field_format,
413 init_data->qib_param_field,
414 init_data->input_slib_elements,
415 init_data->output_slib_elements);
416
417 /* fill input and output descriptors */
418 setup_qdr(irq_ptr, init_data);
419
420 /* qdr, qib, sls, slsbs, slibs, sbales are filled now */
421
422 /* get qdio commands */
423 ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_EQUEUE);
424 if (!ciw) {
Jan Glauber22f99342008-12-25 13:38:46 +0100425 DBF_ERROR("%4x NO EQ", irq_ptr->schid.sch_no);
Jan Glauber779e6e12008-07-17 17:16:48 +0200426 rc = -EINVAL;
427 goto out_err;
428 }
429 irq_ptr->equeue = *ciw;
430
431 ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_AQUEUE);
432 if (!ciw) {
Jan Glauber22f99342008-12-25 13:38:46 +0100433 DBF_ERROR("%4x NO AQ", irq_ptr->schid.sch_no);
Jan Glauber779e6e12008-07-17 17:16:48 +0200434 rc = -EINVAL;
435 goto out_err;
436 }
437 irq_ptr->aqueue = *ciw;
438
439 /* set new interrupt handler */
440 irq_ptr->orig_handler = init_data->cdev->handler;
441 init_data->cdev->handler = qdio_int_handler;
442 return 0;
443out_err:
444 qdio_release_memory(irq_ptr);
445 return rc;
446}
447
448void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
449 struct ccw_device *cdev)
450{
451 char s[80];
452
Jan Glauber22f99342008-12-25 13:38:46 +0100453 snprintf(s, 80, "qdio: %s %s on SC %x using "
454 "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s%s\n",
455 dev_name(&cdev->dev),
456 (irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" :
457 ((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"),
458 irq_ptr->schid.sch_no,
459 is_thinint_irq(irq_ptr),
460 (irq_ptr->sch_token) ? 1 : 0,
461 (irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) ? 1 : 0,
462 css_general_characteristics.aif_tdd,
463 (irq_ptr->siga_flag.input) ? "R" : " ",
464 (irq_ptr->siga_flag.output) ? "W" : " ",
465 (irq_ptr->siga_flag.sync) ? "S" : " ",
466 (!irq_ptr->siga_flag.no_sync_ti) ? "A" : " ",
467 (!irq_ptr->siga_flag.no_sync_out_ti) ? "O" : " ",
468 (!irq_ptr->siga_flag.no_sync_out_pci) ? "P" : " ");
Jan Glauber75f62762008-10-03 21:55:00 +0200469 printk(KERN_INFO "%s", s);
Jan Glauber779e6e12008-07-17 17:16:48 +0200470}
471
472int __init qdio_setup_init(void)
473{
Jan Glauber779e6e12008-07-17 17:16:48 +0200474 qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q),
475 256, 0, NULL);
476 if (!qdio_q_cache)
477 return -ENOMEM;
478
479 /* Check for OSA/FCP thin interrupts (bit 67). */
Jan Glauber22f99342008-12-25 13:38:46 +0100480 DBF_EVENT("thinint:%1d",
481 (css_general_characteristics.aif_osa) ? 1 : 0);
Jan Glauber779e6e12008-07-17 17:16:48 +0200482
483 /* Check for QEBSM support in general (bit 58). */
Jan Glauber22f99342008-12-25 13:38:46 +0100484 DBF_EVENT("cssQEBSM:%1d", (qebsm_possible()) ? 1 : 0);
Jan Glauber779e6e12008-07-17 17:16:48 +0200485 return 0;
486}
487
Heiko Carstens3f1934b2008-08-01 16:39:20 +0200488void qdio_setup_exit(void)
Jan Glauber779e6e12008-07-17 17:16:48 +0200489{
490 kmem_cache_destroy(qdio_q_cache);
491}