1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
|
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (C) 2020 Marvell. */
#include "otx2_cpt_common.h"
#include "otx2_cptlf.h"
#include "rvu_reg.h"
#define CPT_TIMER_HOLD 0x03F
#define CPT_COUNT_HOLD 32
static void cptlf_do_set_done_time_wait(struct otx2_cptlf_info *lf,
int time_wait)
{
union otx2_cptx_lf_done_wait done_wait;
done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE_WAIT);
done_wait.s.time_wait = time_wait;
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE_WAIT, done_wait.u);
}
static void cptlf_do_set_done_num_wait(struct otx2_cptlf_info *lf, int num_wait)
{
union otx2_cptx_lf_done_wait done_wait;
done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE_WAIT);
done_wait.s.num_wait = num_wait;
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE_WAIT, done_wait.u);
}
static void cptlf_set_done_time_wait(struct otx2_cptlfs_info *lfs,
int time_wait)
{
int slot;
for (slot = 0; slot < lfs->lfs_num; slot++)
cptlf_do_set_done_time_wait(&lfs->lf[slot], time_wait);
}
static void cptlf_set_done_num_wait(struct otx2_cptlfs_info *lfs, int num_wait)
{
int slot;
for (slot = 0; slot < lfs->lfs_num; slot++)
cptlf_do_set_done_num_wait(&lfs->lf[slot], num_wait);
}
static int cptlf_set_pri(struct otx2_cptlf_info *lf, int pri)
{
struct otx2_cptlfs_info *lfs = lf->lfs;
union otx2_cptx_af_lf_ctrl lf_ctrl;
int ret;
ret = otx2_cpt_read_af_reg(lfs->mbox, lfs->pdev,
CPT_AF_LFX_CTL(lf->slot),
&lf_ctrl.u, lfs->blkaddr);
if (ret)
return ret;
lf_ctrl.s.pri = pri ? 1 : 0;
ret = otx2_cpt_write_af_reg(lfs->mbox, lfs->pdev,
CPT_AF_LFX_CTL(lf->slot),
lf_ctrl.u, lfs->blkaddr);
return ret;
}
static int cptlf_set_eng_grps_mask(struct otx2_cptlf_info *lf,
int eng_grps_mask)
{
struct otx2_cptlfs_info *lfs = lf->lfs;
union otx2_cptx_af_lf_ctrl lf_ctrl;
int ret;
ret = otx2_cpt_read_af_reg(lfs->mbox, lfs->pdev,
CPT_AF_LFX_CTL(lf->slot),
&lf_ctrl.u, lfs->blkaddr);
if (ret)
return ret;
lf_ctrl.s.grp = eng_grps_mask;
ret = otx2_cpt_write_af_reg(lfs->mbox, lfs->pdev,
CPT_AF_LFX_CTL(lf->slot),
lf_ctrl.u, lfs->blkaddr);
return ret;
}
static int cptlf_set_grp_and_pri(struct otx2_cptlfs_info *lfs,
int eng_grp_mask, int pri)
{
int slot, ret = 0;
for (slot = 0; slot < lfs->lfs_num; slot++) {
ret = cptlf_set_pri(&lfs->lf[slot], pri);
if (ret)
return ret;
ret = cptlf_set_eng_grps_mask(&lfs->lf[slot], eng_grp_mask);
if (ret)
return ret;
}
return ret;
}
static void cptlf_hw_init(struct otx2_cptlfs_info *lfs)
{
/* Disable instruction queues */
otx2_cptlf_disable_iqueues(lfs);
/* Set instruction queues base addresses */
otx2_cptlf_set_iqueues_base_addr(lfs);
/* Set instruction queues sizes */
otx2_cptlf_set_iqueues_size(lfs);
/* Set done interrupts time wait */
cptlf_set_done_time_wait(lfs, CPT_TIMER_HOLD);
/* Set done interrupts num wait */
cptlf_set_done_num_wait(lfs, CPT_COUNT_HOLD);
/* Enable instruction queues */
otx2_cptlf_enable_iqueues(lfs);
}
static void cptlf_hw_cleanup(struct otx2_cptlfs_info *lfs)
{
/* Disable instruction queues */
otx2_cptlf_disable_iqueues(lfs);
}
static void cptlf_set_misc_intrs(struct otx2_cptlfs_info *lfs, u8 enable)
{
union otx2_cptx_lf_misc_int_ena_w1s irq_misc = { .u = 0x0 };
u64 reg = enable ? OTX2_CPT_LF_MISC_INT_ENA_W1S :
OTX2_CPT_LF_MISC_INT_ENA_W1C;
int slot;
irq_misc.s.fault = 0x1;
irq_misc.s.hwerr = 0x1;
irq_misc.s.irde = 0x1;
irq_misc.s.nqerr = 0x1;
irq_misc.s.nwrp = 0x1;
for (slot = 0; slot < lfs->lfs_num; slot++)
otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot, reg,
irq_misc.u);
}
static void cptlf_enable_intrs(struct otx2_cptlfs_info *lfs)
{
int slot;
/* Enable done interrupts */
for (slot = 0; slot < lfs->lfs_num; slot++)
otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
OTX2_CPT_LF_DONE_INT_ENA_W1S, 0x1);
/* Enable Misc interrupts */
cptlf_set_misc_intrs(lfs, true);
}
static void cptlf_disable_intrs(struct otx2_cptlfs_info *lfs)
{
int slot;
for (slot = 0; slot < lfs->lfs_num; slot++)
otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
OTX2_CPT_LF_DONE_INT_ENA_W1C, 0x1);
cptlf_set_misc_intrs(lfs, false);
}
static inline int cptlf_read_done_cnt(struct otx2_cptlf_info *lf)
{
union otx2_cptx_lf_done irq_cnt;
irq_cnt.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE);
return irq_cnt.s.done;
}
static irqreturn_t cptlf_misc_intr_handler(int __always_unused irq, void *arg)
{
union otx2_cptx_lf_misc_int irq_misc, irq_misc_ack;
struct otx2_cptlf_info *lf = arg;
struct device *dev;
dev = &lf->lfs->pdev->dev;
irq_misc.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_MISC_INT);
irq_misc_ack.u = 0x0;
if (irq_misc.s.fault) {
dev_err(dev, "Memory error detected while executing CPT_INST_S, LF %d.\n",
lf->slot);
irq_misc_ack.s.fault = 0x1;
} else if (irq_misc.s.hwerr) {
dev_err(dev, "HW error from an engine executing CPT_INST_S, LF %d.",
lf->slot);
irq_misc_ack.s.hwerr = 0x1;
} else if (irq_misc.s.nwrp) {
dev_err(dev, "SMMU fault while writing CPT_RES_S to CPT_INST_S[RES_ADDR], LF %d.\n",
lf->slot);
irq_misc_ack.s.nwrp = 0x1;
} else if (irq_misc.s.irde) {
dev_err(dev, "Memory error when accessing instruction memory queue CPT_LF_Q_BASE[ADDR].\n");
irq_misc_ack.s.irde = 0x1;
} else if (irq_misc.s.nqerr) {
dev_err(dev, "Error enqueuing an instruction received at CPT_LF_NQ.\n");
irq_misc_ack.s.nqerr = 0x1;
} else {
dev_err(dev, "Unhandled interrupt in CPT LF %d\n", lf->slot);
return IRQ_NONE;
}
/* Acknowledge interrupts */
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_MISC_INT, irq_misc_ack.u);
return IRQ_HANDLED;
}
static irqreturn_t cptlf_done_intr_handler(int irq, void *arg)
{
union otx2_cptx_lf_done_wait done_wait;
struct otx2_cptlf_info *lf = arg;
int irq_cnt;
/* Read the number of completed requests */
irq_cnt = cptlf_read_done_cnt(lf);
if (irq_cnt) {
done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0,
lf->slot, OTX2_CPT_LF_DONE_WAIT);
/* Acknowledge the number of completed requests */
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE_ACK, irq_cnt);
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
OTX2_CPT_LF_DONE_WAIT, done_wait.u);
if (unlikely(!lf->wqe)) {
dev_err(&lf->lfs->pdev->dev, "No work for LF %d\n",
lf->slot);
return IRQ_NONE;
}
/* Schedule processing of completed requests */
tasklet_hi_schedule(&lf->wqe->work);
}
return IRQ_HANDLED;
}
void otx2_cptlf_unregister_interrupts(struct otx2_cptlfs_info *lfs)
{
int i, offs, vector;
for (i = 0; i < lfs->lfs_num; i++) {
for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++) {
if (!lfs->lf[i].is_irq_reg[offs])
continue;
vector = pci_irq_vector(lfs->pdev,
lfs->lf[i].msix_offset + offs);
free_irq(vector, &lfs->lf[i]);
lfs->lf[i].is_irq_reg[offs] = false;
}
}
cptlf_disable_intrs(lfs);
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_unregister_interrupts,
CRYPTO_DEV_OCTEONTX2_CPT);
static int cptlf_do_register_interrrupts(struct otx2_cptlfs_info *lfs,
int lf_num, int irq_offset,
irq_handler_t handler)
{
int ret, vector;
vector = pci_irq_vector(lfs->pdev, lfs->lf[lf_num].msix_offset +
irq_offset);
ret = request_irq(vector, handler, 0,
lfs->lf[lf_num].irq_name[irq_offset],
&lfs->lf[lf_num]);
if (ret)
return ret;
lfs->lf[lf_num].is_irq_reg[irq_offset] = true;
return ret;
}
int otx2_cptlf_register_interrupts(struct otx2_cptlfs_info *lfs)
{
int irq_offs, ret, i;
for (i = 0; i < lfs->lfs_num; i++) {
irq_offs = OTX2_CPT_LF_INT_VEC_E_MISC;
snprintf(lfs->lf[i].irq_name[irq_offs], 32, "CPTLF Misc%d", i);
ret = cptlf_do_register_interrrupts(lfs, i, irq_offs,
cptlf_misc_intr_handler);
if (ret)
goto free_irq;
irq_offs = OTX2_CPT_LF_INT_VEC_E_DONE;
snprintf(lfs->lf[i].irq_name[irq_offs], 32, "OTX2_CPTLF Done%d",
i);
ret = cptlf_do_register_interrrupts(lfs, i, irq_offs,
cptlf_done_intr_handler);
if (ret)
goto free_irq;
}
cptlf_enable_intrs(lfs);
return 0;
free_irq:
otx2_cptlf_unregister_interrupts(lfs);
return ret;
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_register_interrupts, CRYPTO_DEV_OCTEONTX2_CPT);
void otx2_cptlf_free_irqs_affinity(struct otx2_cptlfs_info *lfs)
{
int slot, offs;
for (slot = 0; slot < lfs->lfs_num; slot++) {
for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++)
irq_set_affinity_hint(pci_irq_vector(lfs->pdev,
lfs->lf[slot].msix_offset +
offs), NULL);
free_cpumask_var(lfs->lf[slot].affinity_mask);
}
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_free_irqs_affinity, CRYPTO_DEV_OCTEONTX2_CPT);
int otx2_cptlf_set_irqs_affinity(struct otx2_cptlfs_info *lfs)
{
struct otx2_cptlf_info *lf = lfs->lf;
int slot, offs, ret;
for (slot = 0; slot < lfs->lfs_num; slot++) {
if (!zalloc_cpumask_var(&lf[slot].affinity_mask, GFP_KERNEL)) {
dev_err(&lfs->pdev->dev,
"cpumask allocation failed for LF %d", slot);
ret = -ENOMEM;
goto free_affinity_mask;
}
cpumask_set_cpu(cpumask_local_spread(slot,
dev_to_node(&lfs->pdev->dev)),
lf[slot].affinity_mask);
for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++) {
ret = irq_set_affinity_hint(pci_irq_vector(lfs->pdev,
lf[slot].msix_offset + offs),
lf[slot].affinity_mask);
if (ret)
goto free_affinity_mask;
}
}
return 0;
free_affinity_mask:
otx2_cptlf_free_irqs_affinity(lfs);
return ret;
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_set_irqs_affinity, CRYPTO_DEV_OCTEONTX2_CPT);
int otx2_cptlf_init(struct otx2_cptlfs_info *lfs, u8 eng_grp_mask, int pri,
int lfs_num)
{
int slot, ret;
if (!lfs->pdev || !lfs->reg_base)
return -EINVAL;
lfs->lfs_num = lfs_num;
for (slot = 0; slot < lfs->lfs_num; slot++) {
lfs->lf[slot].lfs = lfs;
lfs->lf[slot].slot = slot;
if (lfs->lmt_base)
lfs->lf[slot].lmtline = lfs->lmt_base +
(slot * LMTLINE_SIZE);
else
lfs->lf[slot].lmtline = lfs->reg_base +
OTX2_CPT_RVU_FUNC_ADDR_S(BLKADDR_LMT, slot,
OTX2_CPT_LMT_LF_LMTLINEX(0));
lfs->lf[slot].ioreg = lfs->reg_base +
OTX2_CPT_RVU_FUNC_ADDR_S(BLKADDR_CPT0, slot,
OTX2_CPT_LF_NQX(0));
}
/* Send request to attach LFs */
ret = otx2_cpt_attach_rscrs_msg(lfs);
if (ret)
goto clear_lfs_num;
ret = otx2_cpt_alloc_instruction_queues(lfs);
if (ret) {
dev_err(&lfs->pdev->dev,
"Allocating instruction queues failed\n");
goto detach_rsrcs;
}
cptlf_hw_init(lfs);
/*
* Allow each LF to execute requests destined to any of 8 engine
* groups and set queue priority of each LF to high
*/
ret = cptlf_set_grp_and_pri(lfs, eng_grp_mask, pri);
if (ret)
goto free_iq;
return 0;
free_iq:
otx2_cpt_free_instruction_queues(lfs);
cptlf_hw_cleanup(lfs);
detach_rsrcs:
otx2_cpt_detach_rsrcs_msg(lfs);
clear_lfs_num:
lfs->lfs_num = 0;
return ret;
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_init, CRYPTO_DEV_OCTEONTX2_CPT);
void otx2_cptlf_shutdown(struct otx2_cptlfs_info *lfs)
{
lfs->lfs_num = 0;
/* Cleanup LFs hardware side */
cptlf_hw_cleanup(lfs);
/* Send request to detach LFs */
otx2_cpt_detach_rsrcs_msg(lfs);
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_shutdown, CRYPTO_DEV_OCTEONTX2_CPT);
MODULE_AUTHOR("Marvell");
MODULE_DESCRIPTION("Marvell RVU CPT Common module");
MODULE_LICENSE("GPL");
|
