]>
Commit | Line | Data |
---|---|---|
779e6e1c | 1 | /* |
779e6e1c JG |
2 | * qdio queue initialization |
3 | * | |
a53c8fab | 4 | * Copyright IBM Corp. 2008 |
779e6e1c JG |
5 | * Author(s): Jan Glauber <jang@linux.vnet.ibm.com> |
6 | */ | |
7 | #include <linux/kernel.h> | |
8 | #include <linux/slab.h> | |
3a4c5d59 | 9 | #include <linux/export.h> |
779e6e1c JG |
10 | #include <asm/qdio.h> |
11 | ||
12 | #include "cio.h" | |
13 | #include "css.h" | |
14 | #include "device.h" | |
15 | #include "ioasm.h" | |
16 | #include "chsc.h" | |
17 | #include "qdio.h" | |
18 | #include "qdio_debug.h" | |
19 | ||
20 | static struct kmem_cache *qdio_q_cache; | |
104ea556 | 21 | static struct kmem_cache *qdio_aob_cache; |
22 | ||
400d8291 | 23 | struct qaob *qdio_allocate_aob(void) |
104ea556 | 24 | { |
400d8291 | 25 | return kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC); |
104ea556 | 26 | } |
27 | EXPORT_SYMBOL_GPL(qdio_allocate_aob); | |
28 | ||
29 | void qdio_release_aob(struct qaob *aob) | |
30 | { | |
31 | kmem_cache_free(qdio_aob_cache, aob); | |
32 | } | |
33 | EXPORT_SYMBOL_GPL(qdio_release_aob); | |
779e6e1c JG |
34 | |
35 | /* | |
36 | * qebsm is only available under 64bit but the adapter sets the feature | |
37 | * flag anyway, so we manually override it. | |
38 | */ | |
39 | static inline int qebsm_possible(void) | |
40 | { | |
41 | #ifdef CONFIG_64BIT | |
42 | return css_general_characteristics.qebsm; | |
43 | #endif | |
44 | return 0; | |
45 | } | |
46 | ||
47 | /* | |
48 | * qib_param_field: pointer to 128 bytes or NULL, if no param field | |
49 | * nr_input_qs: pointer to nr_queues*128 words of data or NULL | |
50 | */ | |
51 | static void set_impl_params(struct qdio_irq *irq_ptr, | |
52 | unsigned int qib_param_field_format, | |
53 | unsigned char *qib_param_field, | |
54 | unsigned long *input_slib_elements, | |
55 | unsigned long *output_slib_elements) | |
56 | { | |
57 | struct qdio_q *q; | |
58 | int i, j; | |
59 | ||
60 | if (!irq_ptr) | |
61 | return; | |
62 | ||
779e6e1c JG |
63 | irq_ptr->qib.pfmt = qib_param_field_format; |
64 | if (qib_param_field) | |
65 | memcpy(irq_ptr->qib.parm, qib_param_field, | |
66 | QDIO_MAX_BUFFERS_PER_Q); | |
67 | ||
68 | if (!input_slib_elements) | |
69 | goto output; | |
70 | ||
71 | for_each_input_queue(irq_ptr, q, i) { | |
72 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) | |
73 | q->slib->slibe[j].parms = | |
74 | input_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j]; | |
75 | } | |
76 | output: | |
77 | if (!output_slib_elements) | |
78 | return; | |
79 | ||
80 | for_each_output_queue(irq_ptr, q, i) { | |
81 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) | |
82 | q->slib->slibe[j].parms = | |
83 | output_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j]; | |
84 | } | |
85 | } | |
86 | ||
87 | static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues) | |
88 | { | |
89 | struct qdio_q *q; | |
90 | int i; | |
91 | ||
92 | for (i = 0; i < nr_queues; i++) { | |
93 | q = kmem_cache_alloc(qdio_q_cache, GFP_KERNEL); | |
94 | if (!q) | |
95 | return -ENOMEM; | |
779e6e1c JG |
96 | |
97 | q->slib = (struct slib *) __get_free_page(GFP_KERNEL); | |
98 | if (!q->slib) { | |
99 | kmem_cache_free(qdio_q_cache, q); | |
100 | return -ENOMEM; | |
101 | } | |
779e6e1c JG |
102 | irq_ptr_qs[i] = q; |
103 | } | |
104 | return 0; | |
105 | } | |
106 | ||
107 | int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs, int nr_output_qs) | |
108 | { | |
109 | int rc; | |
110 | ||
111 | rc = __qdio_allocate_qs(irq_ptr->input_qs, nr_input_qs); | |
112 | if (rc) | |
113 | return rc; | |
114 | rc = __qdio_allocate_qs(irq_ptr->output_qs, nr_output_qs); | |
115 | return rc; | |
116 | } | |
117 | ||
118 | static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr, | |
119 | qdio_handler_t *handler, int i) | |
120 | { | |
5382fe11 | 121 | struct slib *slib = q->slib; |
779e6e1c | 122 | |
5382fe11 JG |
123 | /* queue must be cleared for qdio_establish */ |
124 | memset(q, 0, sizeof(*q)); | |
125 | memset(slib, 0, PAGE_SIZE); | |
126 | q->slib = slib; | |
779e6e1c JG |
127 | q->irq_ptr = irq_ptr; |
128 | q->mask = 1 << (31 - i); | |
129 | q->nr = i; | |
130 | q->handler = handler; | |
131 | } | |
132 | ||
133 | static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr, | |
22f99347 | 134 | void **sbals_array, int i) |
779e6e1c JG |
135 | { |
136 | struct qdio_q *prev; | |
137 | int j; | |
138 | ||
22f99347 | 139 | DBF_HEX(&q, sizeof(void *)); |
779e6e1c JG |
140 | q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2); |
141 | ||
142 | /* fill in sbal */ | |
ce1d8014 | 143 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) |
779e6e1c | 144 | q->sbal[j] = *sbals_array++; |
779e6e1c JG |
145 | |
146 | /* fill in slib */ | |
147 | if (i > 0) { | |
148 | prev = (q->is_input_q) ? irq_ptr->input_qs[i - 1] | |
149 | : irq_ptr->output_qs[i - 1]; | |
150 | prev->slib->nsliba = (unsigned long)q->slib; | |
151 | } | |
152 | ||
153 | q->slib->sla = (unsigned long)q->sl; | |
154 | q->slib->slsba = (unsigned long)&q->slsb.val[0]; | |
155 | ||
156 | /* fill in sl */ | |
157 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) | |
158 | q->sl->element[j].sbal = (unsigned long)q->sbal[j]; | |
779e6e1c JG |
159 | } |
160 | ||
161 | static void setup_queues(struct qdio_irq *irq_ptr, | |
162 | struct qdio_initialize *qdio_init) | |
163 | { | |
779e6e1c JG |
164 | struct qdio_q *q; |
165 | void **input_sbal_array = qdio_init->input_sbal_addr_array; | |
166 | void **output_sbal_array = qdio_init->output_sbal_addr_array; | |
104ea556 | 167 | struct qdio_outbuf_state *output_sbal_state_array = |
168 | qdio_init->output_sbal_state_array; | |
779e6e1c JG |
169 | int i; |
170 | ||
779e6e1c | 171 | for_each_input_queue(irq_ptr, q, i) { |
104ea556 | 172 | DBF_EVENT("inq:%1d", i); |
779e6e1c JG |
173 | setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i); |
174 | ||
175 | q->is_input_q = 1; | |
e58b0d90 SM |
176 | q->u.in.queue_start_poll = qdio_init->queue_start_poll_array ? |
177 | qdio_init->queue_start_poll_array[i] : NULL; | |
104ea556 | 178 | |
22f99347 | 179 | setup_storage_lists(q, irq_ptr, input_sbal_array, i); |
779e6e1c JG |
180 | input_sbal_array += QDIO_MAX_BUFFERS_PER_Q; |
181 | ||
104ea556 | 182 | if (is_thinint_irq(irq_ptr)) { |
779e6e1c JG |
183 | tasklet_init(&q->tasklet, tiqdio_inbound_processing, |
184 | (unsigned long) q); | |
104ea556 | 185 | } else { |
779e6e1c JG |
186 | tasklet_init(&q->tasklet, qdio_inbound_processing, |
187 | (unsigned long) q); | |
104ea556 | 188 | } |
779e6e1c JG |
189 | } |
190 | ||
191 | for_each_output_queue(irq_ptr, q, i) { | |
22f99347 | 192 | DBF_EVENT("outq:%1d", i); |
779e6e1c JG |
193 | setup_queues_misc(q, irq_ptr, qdio_init->output_handler, i); |
194 | ||
104ea556 | 195 | q->u.out.sbal_state = output_sbal_state_array; |
196 | output_sbal_state_array += QDIO_MAX_BUFFERS_PER_Q; | |
197 | ||
779e6e1c | 198 | q->is_input_q = 0; |
3d6c76ff | 199 | q->u.out.scan_threshold = qdio_init->scan_threshold; |
22f99347 | 200 | setup_storage_lists(q, irq_ptr, output_sbal_array, i); |
779e6e1c JG |
201 | output_sbal_array += QDIO_MAX_BUFFERS_PER_Q; |
202 | ||
203 | tasklet_init(&q->tasklet, qdio_outbound_processing, | |
204 | (unsigned long) q); | |
205 | setup_timer(&q->u.out.timer, (void(*)(unsigned long)) | |
206 | &qdio_outbound_timer, (unsigned long)q); | |
207 | } | |
208 | } | |
209 | ||
210 | static void process_ac_flags(struct qdio_irq *irq_ptr, unsigned char qdioac) | |
211 | { | |
212 | if (qdioac & AC1_SIGA_INPUT_NEEDED) | |
213 | irq_ptr->siga_flag.input = 1; | |
214 | if (qdioac & AC1_SIGA_OUTPUT_NEEDED) | |
215 | irq_ptr->siga_flag.output = 1; | |
216 | if (qdioac & AC1_SIGA_SYNC_NEEDED) | |
217 | irq_ptr->siga_flag.sync = 1; | |
90adac58 JG |
218 | if (!(qdioac & AC1_AUTOMATIC_SYNC_ON_THININT)) |
219 | irq_ptr->siga_flag.sync_after_ai = 1; | |
220 | if (!(qdioac & AC1_AUTOMATIC_SYNC_ON_OUT_PCI)) | |
221 | irq_ptr->siga_flag.sync_out_after_pci = 1; | |
779e6e1c JG |
222 | } |
223 | ||
224 | static void check_and_setup_qebsm(struct qdio_irq *irq_ptr, | |
225 | unsigned char qdioac, unsigned long token) | |
226 | { | |
779e6e1c JG |
227 | if (!(irq_ptr->qib.rflags & QIB_RFLAGS_ENABLE_QEBSM)) |
228 | goto no_qebsm; | |
229 | if (!(qdioac & AC1_SC_QEBSM_AVAILABLE) || | |
230 | (!(qdioac & AC1_SC_QEBSM_ENABLED))) | |
231 | goto no_qebsm; | |
232 | ||
233 | irq_ptr->sch_token = token; | |
234 | ||
22f99347 JG |
235 | DBF_EVENT("V=V:1"); |
236 | DBF_EVENT("%8lx", irq_ptr->sch_token); | |
779e6e1c JG |
237 | return; |
238 | ||
239 | no_qebsm: | |
240 | irq_ptr->sch_token = 0; | |
241 | irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM; | |
22f99347 | 242 | DBF_EVENT("noV=V"); |
779e6e1c JG |
243 | } |
244 | ||
bbd50e17 JG |
245 | /* |
246 | * If there is a qdio_irq we use the chsc_page and store the information | |
247 | * in the qdio_irq, otherwise we copy it to the specified structure. | |
248 | */ | |
249 | int qdio_setup_get_ssqd(struct qdio_irq *irq_ptr, | |
250 | struct subchannel_id *schid, | |
251 | struct qdio_ssqd_desc *data) | |
779e6e1c JG |
252 | { |
253 | struct chsc_ssqd_area *ssqd; | |
254 | int rc; | |
255 | ||
22f99347 | 256 | DBF_EVENT("getssqd:%4x", schid->sch_no); |
da5b6cb1 | 257 | if (!irq_ptr) { |
bbd50e17 | 258 | ssqd = (struct chsc_ssqd_area *)__get_free_page(GFP_KERNEL); |
da5b6cb1 SO |
259 | if (!ssqd) |
260 | return -ENOMEM; | |
261 | } else { | |
262 | ssqd = (struct chsc_ssqd_area *)irq_ptr->chsc_page; | |
263 | } | |
264 | ||
265 | rc = chsc_ssqd(*schid, ssqd); | |
779e6e1c | 266 | if (rc) |
da5b6cb1 | 267 | goto out; |
779e6e1c JG |
268 | |
269 | if (!(ssqd->qdio_ssqd.flags & CHSC_FLAG_QDIO_CAPABILITY) || | |
270 | !(ssqd->qdio_ssqd.flags & CHSC_FLAG_VALIDITY) || | |
bbd50e17 | 271 | (ssqd->qdio_ssqd.sch != schid->sch_no)) |
da5b6cb1 SO |
272 | rc = -EINVAL; |
273 | ||
274 | if (!rc) | |
275 | memcpy(data, &ssqd->qdio_ssqd, sizeof(*data)); | |
276 | ||
277 | out: | |
278 | if (!irq_ptr) | |
bbd50e17 | 279 | free_page((unsigned long)ssqd); |
da5b6cb1 SO |
280 | |
281 | return rc; | |
779e6e1c JG |
282 | } |
283 | ||
284 | void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr) | |
285 | { | |
286 | unsigned char qdioac; | |
779e6e1c JG |
287 | int rc; |
288 | ||
da5b6cb1 | 289 | rc = qdio_setup_get_ssqd(irq_ptr, &irq_ptr->schid, &irq_ptr->ssqd_desc); |
779e6e1c | 290 | if (rc) { |
22f99347 JG |
291 | DBF_ERROR("%4x ssqd ERR", irq_ptr->schid.sch_no); |
292 | DBF_ERROR("rc:%x", rc); | |
779e6e1c JG |
293 | /* all flags set, worst case */ |
294 | qdioac = AC1_SIGA_INPUT_NEEDED | AC1_SIGA_OUTPUT_NEEDED | | |
295 | AC1_SIGA_SYNC_NEEDED; | |
296 | } else | |
297 | qdioac = irq_ptr->ssqd_desc.qdioac1; | |
298 | ||
299 | check_and_setup_qebsm(irq_ptr, qdioac, irq_ptr->ssqd_desc.sch_token); | |
300 | process_ac_flags(irq_ptr, qdioac); | |
61d84979 JG |
301 | DBF_EVENT("ac 1:%2x 2:%4x", qdioac, irq_ptr->ssqd_desc.qdioac2); |
302 | DBF_EVENT("3:%4x qib:%4x", irq_ptr->ssqd_desc.qdioac3, irq_ptr->qib.ac); | |
779e6e1c JG |
303 | } |
304 | ||
305 | void qdio_release_memory(struct qdio_irq *irq_ptr) | |
306 | { | |
307 | struct qdio_q *q; | |
308 | int i; | |
309 | ||
310 | /* | |
311 | * Must check queue array manually since irq_ptr->nr_input_queues / | |
312 | * irq_ptr->nr_input_queues may not yet be set. | |
313 | */ | |
314 | for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) { | |
315 | q = irq_ptr->input_qs[i]; | |
316 | if (q) { | |
317 | free_page((unsigned long) q->slib); | |
318 | kmem_cache_free(qdio_q_cache, q); | |
319 | } | |
320 | } | |
321 | for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) { | |
322 | q = irq_ptr->output_qs[i]; | |
323 | if (q) { | |
104ea556 | 324 | if (q->u.out.use_cq) { |
325 | int n; | |
326 | ||
327 | for (n = 0; n < QDIO_MAX_BUFFERS_PER_Q; ++n) { | |
328 | struct qaob *aob = q->u.out.aobs[n]; | |
329 | if (aob) { | |
330 | qdio_release_aob(aob); | |
331 | q->u.out.aobs[n] = NULL; | |
332 | } | |
333 | } | |
334 | ||
335 | qdio_disable_async_operation(&q->u.out); | |
336 | } | |
779e6e1c JG |
337 | free_page((unsigned long) q->slib); |
338 | kmem_cache_free(qdio_q_cache, q); | |
339 | } | |
340 | } | |
3b8e3004 | 341 | free_page((unsigned long) irq_ptr->qdr); |
779e6e1c JG |
342 | free_page(irq_ptr->chsc_page); |
343 | free_page((unsigned long) irq_ptr); | |
344 | } | |
345 | ||
346 | static void __qdio_allocate_fill_qdr(struct qdio_irq *irq_ptr, | |
347 | struct qdio_q **irq_ptr_qs, | |
348 | int i, int nr) | |
349 | { | |
350 | irq_ptr->qdr->qdf0[i + nr].sliba = | |
351 | (unsigned long)irq_ptr_qs[i]->slib; | |
352 | ||
353 | irq_ptr->qdr->qdf0[i + nr].sla = | |
354 | (unsigned long)irq_ptr_qs[i]->sl; | |
355 | ||
356 | irq_ptr->qdr->qdf0[i + nr].slsba = | |
357 | (unsigned long)&irq_ptr_qs[i]->slsb.val[0]; | |
358 | ||
d1bf8590 HC |
359 | irq_ptr->qdr->qdf0[i + nr].akey = PAGE_DEFAULT_KEY >> 4; |
360 | irq_ptr->qdr->qdf0[i + nr].bkey = PAGE_DEFAULT_KEY >> 4; | |
361 | irq_ptr->qdr->qdf0[i + nr].ckey = PAGE_DEFAULT_KEY >> 4; | |
362 | irq_ptr->qdr->qdf0[i + nr].dkey = PAGE_DEFAULT_KEY >> 4; | |
779e6e1c JG |
363 | } |
364 | ||
365 | static void setup_qdr(struct qdio_irq *irq_ptr, | |
366 | struct qdio_initialize *qdio_init) | |
367 | { | |
368 | int i; | |
369 | ||
370 | irq_ptr->qdr->qfmt = qdio_init->q_format; | |
dfe5bb50 | 371 | irq_ptr->qdr->ac = qdio_init->qdr_ac; |
779e6e1c JG |
372 | irq_ptr->qdr->iqdcnt = qdio_init->no_input_qs; |
373 | irq_ptr->qdr->oqdcnt = qdio_init->no_output_qs; | |
374 | irq_ptr->qdr->iqdsz = sizeof(struct qdesfmt0) / 4; /* size in words */ | |
375 | irq_ptr->qdr->oqdsz = sizeof(struct qdesfmt0) / 4; | |
376 | irq_ptr->qdr->qiba = (unsigned long)&irq_ptr->qib; | |
d1bf8590 | 377 | irq_ptr->qdr->qkey = PAGE_DEFAULT_KEY >> 4; |
779e6e1c JG |
378 | |
379 | for (i = 0; i < qdio_init->no_input_qs; i++) | |
380 | __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->input_qs, i, 0); | |
381 | ||
382 | for (i = 0; i < qdio_init->no_output_qs; i++) | |
383 | __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->output_qs, i, | |
384 | qdio_init->no_input_qs); | |
385 | } | |
386 | ||
387 | static void setup_qib(struct qdio_irq *irq_ptr, | |
388 | struct qdio_initialize *init_data) | |
389 | { | |
390 | if (qebsm_possible()) | |
391 | irq_ptr->qib.rflags |= QIB_RFLAGS_ENABLE_QEBSM; | |
392 | ||
dcc18f48 CS |
393 | irq_ptr->qib.rflags |= init_data->qib_rflags; |
394 | ||
779e6e1c JG |
395 | irq_ptr->qib.qfmt = init_data->q_format; |
396 | if (init_data->no_input_qs) | |
397 | irq_ptr->qib.isliba = | |
398 | (unsigned long)(irq_ptr->input_qs[0]->slib); | |
399 | if (init_data->no_output_qs) | |
400 | irq_ptr->qib.osliba = | |
401 | (unsigned long)(irq_ptr->output_qs[0]->slib); | |
402 | memcpy(irq_ptr->qib.ebcnam, init_data->adapter_name, 8); | |
403 | } | |
404 | ||
405 | int qdio_setup_irq(struct qdio_initialize *init_data) | |
406 | { | |
407 | struct ciw *ciw; | |
408 | struct qdio_irq *irq_ptr = init_data->cdev->private->qdio_data; | |
409 | int rc; | |
410 | ||
432ac5e0 JG |
411 | memset(&irq_ptr->qib, 0, sizeof(irq_ptr->qib)); |
412 | memset(&irq_ptr->siga_flag, 0, sizeof(irq_ptr->siga_flag)); | |
413 | memset(&irq_ptr->ccw, 0, sizeof(irq_ptr->ccw)); | |
414 | memset(&irq_ptr->ssqd_desc, 0, sizeof(irq_ptr->ssqd_desc)); | |
415 | memset(&irq_ptr->perf_stat, 0, sizeof(irq_ptr->perf_stat)); | |
416 | ||
417 | irq_ptr->debugfs_dev = irq_ptr->debugfs_perf = NULL; | |
418 | irq_ptr->sch_token = irq_ptr->state = irq_ptr->perf_stat_enabled = 0; | |
419 | ||
779e6e1c JG |
420 | /* wipes qib.ac, required by ar7063 */ |
421 | memset(irq_ptr->qdr, 0, sizeof(struct qdr)); | |
422 | ||
423 | irq_ptr->int_parm = init_data->int_parm; | |
424 | irq_ptr->nr_input_qs = init_data->no_input_qs; | |
425 | irq_ptr->nr_output_qs = init_data->no_output_qs; | |
779e6e1c | 426 | irq_ptr->cdev = init_data->cdev; |
287a0933 | 427 | ccw_device_get_schid(irq_ptr->cdev, &irq_ptr->schid); |
779e6e1c JG |
428 | setup_queues(irq_ptr, init_data); |
429 | ||
430 | setup_qib(irq_ptr, init_data); | |
431 | qdio_setup_thinint(irq_ptr); | |
432 | set_impl_params(irq_ptr, init_data->qib_param_field_format, | |
433 | init_data->qib_param_field, | |
434 | init_data->input_slib_elements, | |
435 | init_data->output_slib_elements); | |
436 | ||
437 | /* fill input and output descriptors */ | |
438 | setup_qdr(irq_ptr, init_data); | |
439 | ||
440 | /* qdr, qib, sls, slsbs, slibs, sbales are filled now */ | |
441 | ||
442 | /* get qdio commands */ | |
443 | ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_EQUEUE); | |
444 | if (!ciw) { | |
22f99347 | 445 | DBF_ERROR("%4x NO EQ", irq_ptr->schid.sch_no); |
779e6e1c JG |
446 | rc = -EINVAL; |
447 | goto out_err; | |
448 | } | |
449 | irq_ptr->equeue = *ciw; | |
450 | ||
451 | ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_AQUEUE); | |
452 | if (!ciw) { | |
22f99347 | 453 | DBF_ERROR("%4x NO AQ", irq_ptr->schid.sch_no); |
779e6e1c JG |
454 | rc = -EINVAL; |
455 | goto out_err; | |
456 | } | |
457 | irq_ptr->aqueue = *ciw; | |
458 | ||
459 | /* set new interrupt handler */ | |
460 | irq_ptr->orig_handler = init_data->cdev->handler; | |
461 | init_data->cdev->handler = qdio_int_handler; | |
462 | return 0; | |
463 | out_err: | |
464 | qdio_release_memory(irq_ptr); | |
465 | return rc; | |
466 | } | |
467 | ||
468 | void qdio_print_subchannel_info(struct qdio_irq *irq_ptr, | |
469 | struct ccw_device *cdev) | |
470 | { | |
471 | char s[80]; | |
472 | ||
22f99347 | 473 | snprintf(s, 80, "qdio: %s %s on SC %x using " |
6726a807 | 474 | "AI:%d QEBSM:%d PRI:%d TDD:%d SIGA:%s%s%s%s%s\n", |
22f99347 JG |
475 | dev_name(&cdev->dev), |
476 | (irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" : | |
477 | ((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"), | |
478 | irq_ptr->schid.sch_no, | |
479 | is_thinint_irq(irq_ptr), | |
480 | (irq_ptr->sch_token) ? 1 : 0, | |
481 | (irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) ? 1 : 0, | |
482 | css_general_characteristics.aif_tdd, | |
483 | (irq_ptr->siga_flag.input) ? "R" : " ", | |
484 | (irq_ptr->siga_flag.output) ? "W" : " ", | |
485 | (irq_ptr->siga_flag.sync) ? "S" : " ", | |
90adac58 JG |
486 | (irq_ptr->siga_flag.sync_after_ai) ? "A" : " ", |
487 | (irq_ptr->siga_flag.sync_out_after_pci) ? "P" : " "); | |
75f62761 | 488 | printk(KERN_INFO "%s", s); |
779e6e1c JG |
489 | } |
490 | ||
104ea556 | 491 | int qdio_enable_async_operation(struct qdio_output_q *outq) |
492 | { | |
493 | outq->aobs = kzalloc(sizeof(struct qaob *) * QDIO_MAX_BUFFERS_PER_Q, | |
494 | GFP_ATOMIC); | |
495 | if (!outq->aobs) { | |
496 | outq->use_cq = 0; | |
497 | return -ENOMEM; | |
498 | } | |
499 | outq->use_cq = 1; | |
500 | return 0; | |
501 | } | |
502 | ||
503 | void qdio_disable_async_operation(struct qdio_output_q *q) | |
504 | { | |
505 | kfree(q->aobs); | |
506 | q->aobs = NULL; | |
507 | q->use_cq = 0; | |
508 | } | |
509 | ||
779e6e1c JG |
510 | int __init qdio_setup_init(void) |
511 | { | |
104ea556 | 512 | int rc; |
513 | ||
779e6e1c JG |
514 | qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q), |
515 | 256, 0, NULL); | |
516 | if (!qdio_q_cache) | |
517 | return -ENOMEM; | |
518 | ||
104ea556 | 519 | qdio_aob_cache = kmem_cache_create("qdio_aob", |
520 | sizeof(struct qaob), | |
521 | sizeof(struct qaob), | |
522 | 0, | |
523 | NULL); | |
524 | if (!qdio_aob_cache) { | |
525 | rc = -ENOMEM; | |
526 | goto free_qdio_q_cache; | |
527 | } | |
528 | ||
779e6e1c | 529 | /* Check for OSA/FCP thin interrupts (bit 67). */ |
22f99347 JG |
530 | DBF_EVENT("thinint:%1d", |
531 | (css_general_characteristics.aif_osa) ? 1 : 0); | |
779e6e1c JG |
532 | |
533 | /* Check for QEBSM support in general (bit 58). */ | |
22f99347 | 534 | DBF_EVENT("cssQEBSM:%1d", (qebsm_possible()) ? 1 : 0); |
104ea556 | 535 | rc = 0; |
536 | out: | |
537 | return rc; | |
538 | free_qdio_q_cache: | |
539 | kmem_cache_destroy(qdio_q_cache); | |
540 | goto out; | |
779e6e1c JG |
541 | } |
542 | ||
3f1934bc | 543 | void qdio_setup_exit(void) |
779e6e1c | 544 | { |
104ea556 | 545 | kmem_cache_destroy(qdio_aob_cache); |
779e6e1c JG |
546 | kmem_cache_destroy(qdio_q_cache); |
547 | } |