Commit | Line | Data |
---|---|---|
779e6e1c JG |
1 | /* |
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 | ||
21 | static 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 | */ | |
27 | static 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 | */ | |
39 | static 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 | ||
51 | WARN_ON((unsigned long)&irq_ptr->qib & 0xff); | |
52 | irq_ptr->qib.pfmt = qib_param_field_format; | |
53 | if (qib_param_field) | |
54 | memcpy(irq_ptr->qib.parm, qib_param_field, | |
55 | QDIO_MAX_BUFFERS_PER_Q); | |
56 | ||
57 | if (!input_slib_elements) | |
58 | goto output; | |
59 | ||
60 | for_each_input_queue(irq_ptr, q, i) { | |
61 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) | |
62 | q->slib->slibe[j].parms = | |
63 | input_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j]; | |
64 | } | |
65 | output: | |
66 | if (!output_slib_elements) | |
67 | return; | |
68 | ||
69 | for_each_output_queue(irq_ptr, q, i) { | |
70 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) | |
71 | q->slib->slibe[j].parms = | |
72 | output_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j]; | |
73 | } | |
74 | } | |
75 | ||
76 | static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues) | |
77 | { | |
78 | struct qdio_q *q; | |
79 | int i; | |
80 | ||
81 | for (i = 0; i < nr_queues; i++) { | |
82 | q = kmem_cache_alloc(qdio_q_cache, GFP_KERNEL); | |
83 | if (!q) | |
84 | return -ENOMEM; | |
85 | WARN_ON((unsigned long)q & 0xff); | |
86 | ||
87 | q->slib = (struct slib *) __get_free_page(GFP_KERNEL); | |
88 | if (!q->slib) { | |
89 | kmem_cache_free(qdio_q_cache, q); | |
90 | return -ENOMEM; | |
91 | } | |
92 | WARN_ON((unsigned long)q->slib & 0x7ff); | |
93 | irq_ptr_qs[i] = q; | |
94 | } | |
95 | return 0; | |
96 | } | |
97 | ||
98 | int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs, int nr_output_qs) | |
99 | { | |
100 | int rc; | |
101 | ||
102 | rc = __qdio_allocate_qs(irq_ptr->input_qs, nr_input_qs); | |
103 | if (rc) | |
104 | return rc; | |
105 | rc = __qdio_allocate_qs(irq_ptr->output_qs, nr_output_qs); | |
106 | return rc; | |
107 | } | |
108 | ||
109 | static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr, | |
110 | qdio_handler_t *handler, int i) | |
111 | { | |
112 | /* must be cleared by every qdio_establish */ | |
113 | memset(q, 0, ((char *)&q->slib) - ((char *)q)); | |
114 | memset(q->slib, 0, PAGE_SIZE); | |
115 | ||
116 | q->irq_ptr = irq_ptr; | |
117 | q->mask = 1 << (31 - i); | |
118 | q->nr = i; | |
119 | q->handler = handler; | |
120 | } | |
121 | ||
122 | static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr, | |
22f99347 | 123 | void **sbals_array, int i) |
779e6e1c JG |
124 | { |
125 | struct qdio_q *prev; | |
126 | int j; | |
127 | ||
22f99347 | 128 | DBF_HEX(&q, sizeof(void *)); |
779e6e1c JG |
129 | q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2); |
130 | ||
131 | /* fill in sbal */ | |
132 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) { | |
133 | q->sbal[j] = *sbals_array++; | |
134 | WARN_ON((unsigned long)q->sbal[j] & 0xff); | |
135 | } | |
136 | ||
137 | /* fill in slib */ | |
138 | if (i > 0) { | |
139 | prev = (q->is_input_q) ? irq_ptr->input_qs[i - 1] | |
140 | : irq_ptr->output_qs[i - 1]; | |
141 | prev->slib->nsliba = (unsigned long)q->slib; | |
142 | } | |
143 | ||
144 | q->slib->sla = (unsigned long)q->sl; | |
145 | q->slib->slsba = (unsigned long)&q->slsb.val[0]; | |
146 | ||
147 | /* fill in sl */ | |
148 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) | |
149 | q->sl->element[j].sbal = (unsigned long)q->sbal[j]; | |
150 | ||
22f99347 JG |
151 | DBF_EVENT("sl-slsb-sbal"); |
152 | DBF_HEX(q->sl, sizeof(void *)); | |
153 | DBF_HEX(&q->slsb, sizeof(void *)); | |
154 | DBF_HEX(q->sbal, sizeof(void *)); | |
779e6e1c JG |
155 | } |
156 | ||
157 | static void setup_queues(struct qdio_irq *irq_ptr, | |
158 | struct qdio_initialize *qdio_init) | |
159 | { | |
779e6e1c JG |
160 | struct qdio_q *q; |
161 | void **input_sbal_array = qdio_init->input_sbal_addr_array; | |
162 | void **output_sbal_array = qdio_init->output_sbal_addr_array; | |
163 | int i; | |
164 | ||
779e6e1c | 165 | for_each_input_queue(irq_ptr, q, i) { |
22f99347 | 166 | DBF_EVENT("in-q:%1d", i); |
779e6e1c JG |
167 | setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i); |
168 | ||
169 | q->is_input_q = 1; | |
22f99347 | 170 | setup_storage_lists(q, irq_ptr, input_sbal_array, i); |
779e6e1c JG |
171 | input_sbal_array += QDIO_MAX_BUFFERS_PER_Q; |
172 | ||
173 | if (is_thinint_irq(irq_ptr)) | |
174 | tasklet_init(&q->tasklet, tiqdio_inbound_processing, | |
175 | (unsigned long) q); | |
176 | else | |
177 | tasklet_init(&q->tasklet, qdio_inbound_processing, | |
178 | (unsigned long) q); | |
179 | } | |
180 | ||
181 | for_each_output_queue(irq_ptr, q, i) { | |
22f99347 | 182 | DBF_EVENT("outq:%1d", i); |
779e6e1c JG |
183 | setup_queues_misc(q, irq_ptr, qdio_init->output_handler, i); |
184 | ||
185 | q->is_input_q = 0; | |
22f99347 | 186 | setup_storage_lists(q, irq_ptr, output_sbal_array, i); |
779e6e1c JG |
187 | output_sbal_array += QDIO_MAX_BUFFERS_PER_Q; |
188 | ||
189 | tasklet_init(&q->tasklet, qdio_outbound_processing, | |
190 | (unsigned long) q); | |
191 | setup_timer(&q->u.out.timer, (void(*)(unsigned long)) | |
192 | &qdio_outbound_timer, (unsigned long)q); | |
193 | } | |
194 | } | |
195 | ||
196 | static void process_ac_flags(struct qdio_irq *irq_ptr, unsigned char qdioac) | |
197 | { | |
198 | if (qdioac & AC1_SIGA_INPUT_NEEDED) | |
199 | irq_ptr->siga_flag.input = 1; | |
200 | if (qdioac & AC1_SIGA_OUTPUT_NEEDED) | |
201 | irq_ptr->siga_flag.output = 1; | |
202 | if (qdioac & AC1_SIGA_SYNC_NEEDED) | |
203 | irq_ptr->siga_flag.sync = 1; | |
204 | if (qdioac & AC1_AUTOMATIC_SYNC_ON_THININT) | |
205 | irq_ptr->siga_flag.no_sync_ti = 1; | |
206 | if (qdioac & AC1_AUTOMATIC_SYNC_ON_OUT_PCI) | |
207 | irq_ptr->siga_flag.no_sync_out_pci = 1; | |
208 | ||
209 | if (irq_ptr->siga_flag.no_sync_out_pci && | |
210 | irq_ptr->siga_flag.no_sync_ti) | |
211 | irq_ptr->siga_flag.no_sync_out_ti = 1; | |
212 | } | |
213 | ||
214 | static void check_and_setup_qebsm(struct qdio_irq *irq_ptr, | |
215 | unsigned char qdioac, unsigned long token) | |
216 | { | |
779e6e1c JG |
217 | if (!(irq_ptr->qib.rflags & QIB_RFLAGS_ENABLE_QEBSM)) |
218 | goto no_qebsm; | |
219 | if (!(qdioac & AC1_SC_QEBSM_AVAILABLE) || | |
220 | (!(qdioac & AC1_SC_QEBSM_ENABLED))) | |
221 | goto no_qebsm; | |
222 | ||
223 | irq_ptr->sch_token = token; | |
224 | ||
22f99347 JG |
225 | DBF_EVENT("V=V:1"); |
226 | DBF_EVENT("%8lx", irq_ptr->sch_token); | |
779e6e1c JG |
227 | return; |
228 | ||
229 | no_qebsm: | |
230 | irq_ptr->sch_token = 0; | |
231 | irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM; | |
22f99347 | 232 | DBF_EVENT("noV=V"); |
779e6e1c JG |
233 | } |
234 | ||
bbd50e17 JG |
235 | /* |
236 | * If there is a qdio_irq we use the chsc_page and store the information | |
237 | * in the qdio_irq, otherwise we copy it to the specified structure. | |
238 | */ | |
239 | int qdio_setup_get_ssqd(struct qdio_irq *irq_ptr, | |
240 | struct subchannel_id *schid, | |
241 | struct qdio_ssqd_desc *data) | |
779e6e1c JG |
242 | { |
243 | struct chsc_ssqd_area *ssqd; | |
244 | int rc; | |
245 | ||
22f99347 | 246 | DBF_EVENT("getssqd:%4x", schid->sch_no); |
bbd50e17 JG |
247 | if (irq_ptr != NULL) |
248 | ssqd = (struct chsc_ssqd_area *)irq_ptr->chsc_page; | |
249 | else | |
250 | ssqd = (struct chsc_ssqd_area *)__get_free_page(GFP_KERNEL); | |
779e6e1c JG |
251 | memset(ssqd, 0, PAGE_SIZE); |
252 | ||
253 | ssqd->request = (struct chsc_header) { | |
254 | .length = 0x0010, | |
255 | .code = 0x0024, | |
256 | }; | |
bbd50e17 JG |
257 | ssqd->first_sch = schid->sch_no; |
258 | ssqd->last_sch = schid->sch_no; | |
259 | ssqd->ssid = schid->ssid; | |
779e6e1c JG |
260 | |
261 | if (chsc(ssqd)) | |
262 | return -EIO; | |
263 | rc = chsc_error_from_response(ssqd->response.code); | |
264 | if (rc) | |
265 | return rc; | |
266 | ||
267 | if (!(ssqd->qdio_ssqd.flags & CHSC_FLAG_QDIO_CAPABILITY) || | |
268 | !(ssqd->qdio_ssqd.flags & CHSC_FLAG_VALIDITY) || | |
bbd50e17 | 269 | (ssqd->qdio_ssqd.sch != schid->sch_no)) |
779e6e1c JG |
270 | return -EINVAL; |
271 | ||
bbd50e17 JG |
272 | if (irq_ptr != NULL) |
273 | memcpy(&irq_ptr->ssqd_desc, &ssqd->qdio_ssqd, | |
274 | sizeof(struct qdio_ssqd_desc)); | |
275 | else { | |
276 | memcpy(data, &ssqd->qdio_ssqd, | |
277 | sizeof(struct qdio_ssqd_desc)); | |
278 | free_page((unsigned long)ssqd); | |
279 | } | |
779e6e1c JG |
280 | return 0; |
281 | } | |
282 | ||
283 | void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr) | |
284 | { | |
285 | unsigned char qdioac; | |
779e6e1c JG |
286 | int rc; |
287 | ||
bbd50e17 | 288 | rc = qdio_setup_get_ssqd(irq_ptr, &irq_ptr->schid, NULL); |
779e6e1c | 289 | if (rc) { |
22f99347 JG |
290 | DBF_ERROR("%4x ssqd ERR", irq_ptr->schid.sch_no); |
291 | DBF_ERROR("rc:%x", rc); | |
779e6e1c JG |
292 | /* all flags set, worst case */ |
293 | qdioac = AC1_SIGA_INPUT_NEEDED | AC1_SIGA_OUTPUT_NEEDED | | |
294 | AC1_SIGA_SYNC_NEEDED; | |
295 | } else | |
296 | qdioac = irq_ptr->ssqd_desc.qdioac1; | |
297 | ||
298 | check_and_setup_qebsm(irq_ptr, qdioac, irq_ptr->ssqd_desc.sch_token); | |
299 | process_ac_flags(irq_ptr, qdioac); | |
22f99347 | 300 | DBF_EVENT("qdioac:%4x", qdioac); |
779e6e1c JG |
301 | } |
302 | ||
303 | void qdio_release_memory(struct qdio_irq *irq_ptr) | |
304 | { | |
305 | struct qdio_q *q; | |
306 | int i; | |
307 | ||
308 | /* | |
309 | * Must check queue array manually since irq_ptr->nr_input_queues / | |
310 | * irq_ptr->nr_input_queues may not yet be set. | |
311 | */ | |
312 | for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) { | |
313 | q = irq_ptr->input_qs[i]; | |
314 | if (q) { | |
315 | free_page((unsigned long) q->slib); | |
316 | kmem_cache_free(qdio_q_cache, q); | |
317 | } | |
318 | } | |
319 | for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) { | |
320 | q = irq_ptr->output_qs[i]; | |
321 | if (q) { | |
322 | free_page((unsigned long) q->slib); | |
323 | kmem_cache_free(qdio_q_cache, q); | |
324 | } | |
325 | } | |
3b8e3004 | 326 | free_page((unsigned long) irq_ptr->qdr); |
779e6e1c JG |
327 | free_page(irq_ptr->chsc_page); |
328 | free_page((unsigned long) irq_ptr); | |
329 | } | |
330 | ||
331 | static void __qdio_allocate_fill_qdr(struct qdio_irq *irq_ptr, | |
332 | struct qdio_q **irq_ptr_qs, | |
333 | int i, int nr) | |
334 | { | |
335 | irq_ptr->qdr->qdf0[i + nr].sliba = | |
336 | (unsigned long)irq_ptr_qs[i]->slib; | |
337 | ||
338 | irq_ptr->qdr->qdf0[i + nr].sla = | |
339 | (unsigned long)irq_ptr_qs[i]->sl; | |
340 | ||
341 | irq_ptr->qdr->qdf0[i + nr].slsba = | |
342 | (unsigned long)&irq_ptr_qs[i]->slsb.val[0]; | |
343 | ||
344 | irq_ptr->qdr->qdf0[i + nr].akey = PAGE_DEFAULT_KEY; | |
345 | irq_ptr->qdr->qdf0[i + nr].bkey = PAGE_DEFAULT_KEY; | |
346 | irq_ptr->qdr->qdf0[i + nr].ckey = PAGE_DEFAULT_KEY; | |
347 | irq_ptr->qdr->qdf0[i + nr].dkey = PAGE_DEFAULT_KEY; | |
348 | } | |
349 | ||
350 | static void setup_qdr(struct qdio_irq *irq_ptr, | |
351 | struct qdio_initialize *qdio_init) | |
352 | { | |
353 | int i; | |
354 | ||
355 | irq_ptr->qdr->qfmt = qdio_init->q_format; | |
356 | irq_ptr->qdr->iqdcnt = qdio_init->no_input_qs; | |
357 | irq_ptr->qdr->oqdcnt = qdio_init->no_output_qs; | |
358 | irq_ptr->qdr->iqdsz = sizeof(struct qdesfmt0) / 4; /* size in words */ | |
359 | irq_ptr->qdr->oqdsz = sizeof(struct qdesfmt0) / 4; | |
360 | irq_ptr->qdr->qiba = (unsigned long)&irq_ptr->qib; | |
361 | irq_ptr->qdr->qkey = PAGE_DEFAULT_KEY; | |
362 | ||
363 | for (i = 0; i < qdio_init->no_input_qs; i++) | |
364 | __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->input_qs, i, 0); | |
365 | ||
366 | for (i = 0; i < qdio_init->no_output_qs; i++) | |
367 | __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->output_qs, i, | |
368 | qdio_init->no_input_qs); | |
369 | } | |
370 | ||
371 | static void setup_qib(struct qdio_irq *irq_ptr, | |
372 | struct qdio_initialize *init_data) | |
373 | { | |
374 | if (qebsm_possible()) | |
375 | irq_ptr->qib.rflags |= QIB_RFLAGS_ENABLE_QEBSM; | |
376 | ||
377 | irq_ptr->qib.qfmt = init_data->q_format; | |
378 | if (init_data->no_input_qs) | |
379 | irq_ptr->qib.isliba = | |
380 | (unsigned long)(irq_ptr->input_qs[0]->slib); | |
381 | if (init_data->no_output_qs) | |
382 | irq_ptr->qib.osliba = | |
383 | (unsigned long)(irq_ptr->output_qs[0]->slib); | |
384 | memcpy(irq_ptr->qib.ebcnam, init_data->adapter_name, 8); | |
385 | } | |
386 | ||
387 | int qdio_setup_irq(struct qdio_initialize *init_data) | |
388 | { | |
389 | struct ciw *ciw; | |
390 | struct qdio_irq *irq_ptr = init_data->cdev->private->qdio_data; | |
391 | int rc; | |
392 | ||
393 | memset(irq_ptr, 0, ((char *)&irq_ptr->qdr) - ((char *)irq_ptr)); | |
394 | /* wipes qib.ac, required by ar7063 */ | |
395 | memset(irq_ptr->qdr, 0, sizeof(struct qdr)); | |
396 | ||
397 | irq_ptr->int_parm = init_data->int_parm; | |
398 | irq_ptr->nr_input_qs = init_data->no_input_qs; | |
399 | irq_ptr->nr_output_qs = init_data->no_output_qs; | |
400 | ||
401 | irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev); | |
402 | irq_ptr->cdev = init_data->cdev; | |
403 | setup_queues(irq_ptr, init_data); | |
404 | ||
405 | setup_qib(irq_ptr, init_data); | |
406 | qdio_setup_thinint(irq_ptr); | |
407 | set_impl_params(irq_ptr, init_data->qib_param_field_format, | |
408 | init_data->qib_param_field, | |
409 | init_data->input_slib_elements, | |
410 | init_data->output_slib_elements); | |
411 | ||
412 | /* fill input and output descriptors */ | |
413 | setup_qdr(irq_ptr, init_data); | |
414 | ||
415 | /* qdr, qib, sls, slsbs, slibs, sbales are filled now */ | |
416 | ||
417 | /* get qdio commands */ | |
418 | ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_EQUEUE); | |
419 | if (!ciw) { | |
22f99347 | 420 | DBF_ERROR("%4x NO EQ", irq_ptr->schid.sch_no); |
779e6e1c JG |
421 | rc = -EINVAL; |
422 | goto out_err; | |
423 | } | |
424 | irq_ptr->equeue = *ciw; | |
425 | ||
426 | ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_AQUEUE); | |
427 | if (!ciw) { | |
22f99347 | 428 | DBF_ERROR("%4x NO AQ", irq_ptr->schid.sch_no); |
779e6e1c JG |
429 | rc = -EINVAL; |
430 | goto out_err; | |
431 | } | |
432 | irq_ptr->aqueue = *ciw; | |
433 | ||
434 | /* set new interrupt handler */ | |
435 | irq_ptr->orig_handler = init_data->cdev->handler; | |
436 | init_data->cdev->handler = qdio_int_handler; | |
437 | return 0; | |
438 | out_err: | |
439 | qdio_release_memory(irq_ptr); | |
440 | return rc; | |
441 | } | |
442 | ||
443 | void qdio_print_subchannel_info(struct qdio_irq *irq_ptr, | |
444 | struct ccw_device *cdev) | |
445 | { | |
446 | char s[80]; | |
447 | ||
22f99347 JG |
448 | snprintf(s, 80, "qdio: %s %s on SC %x using " |
449 | "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s%s\n", | |
450 | dev_name(&cdev->dev), | |
451 | (irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" : | |
452 | ((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"), | |
453 | irq_ptr->schid.sch_no, | |
454 | is_thinint_irq(irq_ptr), | |
455 | (irq_ptr->sch_token) ? 1 : 0, | |
456 | (irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) ? 1 : 0, | |
457 | css_general_characteristics.aif_tdd, | |
458 | (irq_ptr->siga_flag.input) ? "R" : " ", | |
459 | (irq_ptr->siga_flag.output) ? "W" : " ", | |
460 | (irq_ptr->siga_flag.sync) ? "S" : " ", | |
461 | (!irq_ptr->siga_flag.no_sync_ti) ? "A" : " ", | |
462 | (!irq_ptr->siga_flag.no_sync_out_ti) ? "O" : " ", | |
463 | (!irq_ptr->siga_flag.no_sync_out_pci) ? "P" : " "); | |
75f62761 | 464 | printk(KERN_INFO "%s", s); |
779e6e1c JG |
465 | } |
466 | ||
467 | int __init qdio_setup_init(void) | |
468 | { | |
779e6e1c JG |
469 | qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q), |
470 | 256, 0, NULL); | |
471 | if (!qdio_q_cache) | |
472 | return -ENOMEM; | |
473 | ||
474 | /* Check for OSA/FCP thin interrupts (bit 67). */ | |
22f99347 JG |
475 | DBF_EVENT("thinint:%1d", |
476 | (css_general_characteristics.aif_osa) ? 1 : 0); | |
779e6e1c JG |
477 | |
478 | /* Check for QEBSM support in general (bit 58). */ | |
22f99347 | 479 | DBF_EVENT("cssQEBSM:%1d", (qebsm_possible()) ? 1 : 0); |
779e6e1c JG |
480 | return 0; |
481 | } | |
482 | ||
3f1934bc | 483 | void qdio_setup_exit(void) |
779e6e1c JG |
484 | { |
485 | kmem_cache_destroy(qdio_q_cache); | |
486 | } |