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IB/mthca: Include the header we really want
[linux-2.6/mini2440.git] / drivers / infiniband / hw / mthca / mthca_cmd.c
blob99a94d7109350b4ed69870f1d32178d0235406a9
1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 *
34 * $Id: mthca_cmd.c 1349 2004-12-16 21:09:43Z roland $
35 */
36
37 #include <linux/completion.h>
38 #include <linux/pci.h>
39 #include <linux/errno.h>
40 #include <asm/io.h>
41 #include <rdma/ib_mad.h>
42
43 #include "mthca_dev.h"
44 #include "mthca_config_reg.h"
45 #include "mthca_cmd.h"
46 #include "mthca_memfree.h"
47
48 #define CMD_POLL_TOKEN 0xffff
49
50 enum {
51 HCR_IN_PARAM_OFFSET = 0x00,
52 HCR_IN_MODIFIER_OFFSET = 0x08,
53 HCR_OUT_PARAM_OFFSET = 0x0c,
54 HCR_TOKEN_OFFSET = 0x14,
55 HCR_STATUS_OFFSET = 0x18,
56
57 HCR_OPMOD_SHIFT = 12,
58 HCA_E_BIT = 22,
59 HCR_GO_BIT = 23
60 };
61
62 enum {
63 /* initialization and general commands */
64 CMD_SYS_EN = 0x1,
65 CMD_SYS_DIS = 0x2,
66 CMD_MAP_FA = 0xfff,
67 CMD_UNMAP_FA = 0xffe,
68 CMD_RUN_FW = 0xff6,
69 CMD_MOD_STAT_CFG = 0x34,
70 CMD_QUERY_DEV_LIM = 0x3,
71 CMD_QUERY_FW = 0x4,
72 CMD_ENABLE_LAM = 0xff8,
73 CMD_DISABLE_LAM = 0xff7,
74 CMD_QUERY_DDR = 0x5,
75 CMD_QUERY_ADAPTER = 0x6,
76 CMD_INIT_HCA = 0x7,
77 CMD_CLOSE_HCA = 0x8,
78 CMD_INIT_IB = 0x9,
79 CMD_CLOSE_IB = 0xa,
80 CMD_QUERY_HCA = 0xb,
81 CMD_SET_IB = 0xc,
82 CMD_ACCESS_DDR = 0x2e,
83 CMD_MAP_ICM = 0xffa,
84 CMD_UNMAP_ICM = 0xff9,
85 CMD_MAP_ICM_AUX = 0xffc,
86 CMD_UNMAP_ICM_AUX = 0xffb,
87 CMD_SET_ICM_SIZE = 0xffd,
88
89 /* TPT commands */
90 CMD_SW2HW_MPT = 0xd,
91 CMD_QUERY_MPT = 0xe,
92 CMD_HW2SW_MPT = 0xf,
93 CMD_READ_MTT = 0x10,
94 CMD_WRITE_MTT = 0x11,
95 CMD_SYNC_TPT = 0x2f,
96
97 /* EQ commands */
98 CMD_MAP_EQ = 0x12,
99 CMD_SW2HW_EQ = 0x13,
100 CMD_HW2SW_EQ = 0x14,
101 CMD_QUERY_EQ = 0x15,
102
103 /* CQ commands */
104 CMD_SW2HW_CQ = 0x16,
105 CMD_HW2SW_CQ = 0x17,
106 CMD_QUERY_CQ = 0x18,
107 CMD_RESIZE_CQ = 0x2c,
108
109 /* SRQ commands */
110 CMD_SW2HW_SRQ = 0x35,
111 CMD_HW2SW_SRQ = 0x36,
112 CMD_QUERY_SRQ = 0x37,
113 CMD_ARM_SRQ = 0x40,
114
115 /* QP/EE commands */
116 CMD_RST2INIT_QPEE = 0x19,
117 CMD_INIT2RTR_QPEE = 0x1a,
118 CMD_RTR2RTS_QPEE = 0x1b,
119 CMD_RTS2RTS_QPEE = 0x1c,
120 CMD_SQERR2RTS_QPEE = 0x1d,
121 CMD_2ERR_QPEE = 0x1e,
122 CMD_RTS2SQD_QPEE = 0x1f,
123 CMD_SQD2SQD_QPEE = 0x38,
124 CMD_SQD2RTS_QPEE = 0x20,
125 CMD_ERR2RST_QPEE = 0x21,
126 CMD_QUERY_QPEE = 0x22,
127 CMD_INIT2INIT_QPEE = 0x2d,
128 CMD_SUSPEND_QPEE = 0x32,
129 CMD_UNSUSPEND_QPEE = 0x33,
130 /* special QPs and management commands */
131 CMD_CONF_SPECIAL_QP = 0x23,
132 CMD_MAD_IFC = 0x24,
133
134 /* multicast commands */
135 CMD_READ_MGM = 0x25,
136 CMD_WRITE_MGM = 0x26,
137 CMD_MGID_HASH = 0x27,
138
139 /* miscellaneous commands */
140 CMD_DIAG_RPRT = 0x30,
141 CMD_NOP = 0x31,
142
143 /* debug commands */
144 CMD_QUERY_DEBUG_MSG = 0x2a,
145 CMD_SET_DEBUG_MSG = 0x2b,
146 };
147
148 /*
149 * According to Mellanox code, FW may be starved and never complete
150 * commands. So we can't use strict timeouts described in PRM -- we
151 * just arbitrarily select 60 seconds for now.
152 */
153 #if 0
154 /*
155 * Round up and add 1 to make sure we get the full wait time (since we
156 * will be starting in the middle of a jiffy)
157 */
158 enum {
159 CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1,
160 CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1,
161 CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1
162 };
163 #else
164 enum {
165 CMD_TIME_CLASS_A = 60 * HZ,
166 CMD_TIME_CLASS_B = 60 * HZ,
167 CMD_TIME_CLASS_C = 60 * HZ
168 };
169 #endif
170
171 enum {
172 GO_BIT_TIMEOUT = HZ * 10
173 };
174
175 struct mthca_cmd_context {
176 struct completion done;
177 int result;
178 int next;
179 u64 out_param;
180 u16 token;
181 u8 status;
182 };
183
184 static int fw_cmd_doorbell = 0;
185 module_param(fw_cmd_doorbell, int, 0644);
186 MODULE_PARM_DESC(fw_cmd_doorbell, "post FW commands through doorbell page if nonzero "
187 "(and supported by FW)");
188
189 static inline int go_bit(struct mthca_dev *dev)
190 {
191 return readl(dev->hcr + HCR_STATUS_OFFSET) &
192 swab32(1 << HCR_GO_BIT);
193 }
194
195 static void mthca_cmd_post_dbell(struct mthca_dev *dev,
196 u64 in_param,
197 u64 out_param,
198 u32 in_modifier,
199 u8 op_modifier,
200 u16 op,
201 u16 token)
202 {
203 void __iomem *ptr = dev->cmd.dbell_map;
204 u16 *offs = dev->cmd.dbell_offsets;
205
206 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), ptr + offs[0]);
207 wmb();
208 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), ptr + offs[1]);
209 wmb();
210 __raw_writel((__force u32) cpu_to_be32(in_modifier), ptr + offs[2]);
211 wmb();
212 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), ptr + offs[3]);
213 wmb();
214 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), ptr + offs[4]);
215 wmb();
216 __raw_writel((__force u32) cpu_to_be32(token << 16), ptr + offs[5]);
217 wmb();
218 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
219 (1 << HCA_E_BIT) |
220 (op_modifier << HCR_OPMOD_SHIFT) |
221 op), ptr + offs[6]);
222 wmb();
223 __raw_writel((__force u32) 0, ptr + offs[7]);
224 wmb();
225 }
226
227 static int mthca_cmd_post_hcr(struct mthca_dev *dev,
228 u64 in_param,
229 u64 out_param,
230 u32 in_modifier,
231 u8 op_modifier,
232 u16 op,
233 u16 token,
234 int event)
235 {
236 if (event) {
237 unsigned long end = jiffies + GO_BIT_TIMEOUT;
238
239 while (go_bit(dev) && time_before(jiffies, end)) {
240 set_current_state(TASK_RUNNING);
241 schedule();
242 }
243 }
244
245 if (go_bit(dev))
246 return -EAGAIN;
247
248 /*
249 * We use writel (instead of something like memcpy_toio)
250 * because writes of less than 32 bits to the HCR don't work
251 * (and some architectures such as ia64 implement memcpy_toio
252 * in terms of writeb).
253 */
254 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), dev->hcr + 0 * 4);
255 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), dev->hcr + 1 * 4);
256 __raw_writel((__force u32) cpu_to_be32(in_modifier), dev->hcr + 2 * 4);
257 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), dev->hcr + 3 * 4);
258 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4);
259 __raw_writel((__force u32) cpu_to_be32(token << 16), dev->hcr + 5 * 4);
260
261 /* __raw_writel may not order writes. */
262 wmb();
263
264 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
265 (event ? (1 << HCA_E_BIT) : 0) |
266 (op_modifier << HCR_OPMOD_SHIFT) |
267 op), dev->hcr + 6 * 4);
268
269 return 0;
270 }
271
272 static int mthca_cmd_post(struct mthca_dev *dev,
273 u64 in_param,
274 u64 out_param,
275 u32 in_modifier,
276 u8 op_modifier,
277 u16 op,
278 u16 token,
279 int event)
280 {
281 int err = 0;
282
283 mutex_lock(&dev->cmd.hcr_mutex);
284
285 if (event && dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS && fw_cmd_doorbell)
286 mthca_cmd_post_dbell(dev, in_param, out_param, in_modifier,
287 op_modifier, op, token);
288 else
289 err = mthca_cmd_post_hcr(dev, in_param, out_param, in_modifier,
290 op_modifier, op, token, event);
291
292 mutex_unlock(&dev->cmd.hcr_mutex);
293 return err;
294 }
295
296 static int mthca_cmd_poll(struct mthca_dev *dev,
297 u64 in_param,
298 u64 *out_param,
299 int out_is_imm,
300 u32 in_modifier,
301 u8 op_modifier,
302 u16 op,
303 unsigned long timeout,
304 u8 *status)
305 {
306 int err = 0;
307 unsigned long end;
308
309 down(&dev->cmd.poll_sem);
310
311 err = mthca_cmd_post(dev, in_param,
312 out_param ? *out_param : 0,
313 in_modifier, op_modifier,
314 op, CMD_POLL_TOKEN, 0);
315 if (err)
316 goto out;
317
318 end = timeout + jiffies;
319 while (go_bit(dev) && time_before(jiffies, end)) {
320 set_current_state(TASK_RUNNING);
321 schedule();
322 }
323
324 if (go_bit(dev)) {
325 err = -EBUSY;
326 goto out;
327 }
328
329 if (out_is_imm)
330 *out_param =
331 (u64) be32_to_cpu((__force __be32)
332 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
333 (u64) be32_to_cpu((__force __be32)
334 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET + 4));
335
336 *status = be32_to_cpu((__force __be32) __raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24;
337
338 out:
339 up(&dev->cmd.poll_sem);
340 return err;
341 }
342
343 void mthca_cmd_event(struct mthca_dev *dev,
344 u16 token,
345 u8 status,
346 u64 out_param)
347 {
348 struct mthca_cmd_context *context =
349 &dev->cmd.context[token & dev->cmd.token_mask];
350
351 /* previously timed out command completing at long last */
352 if (token != context->token)
353 return;
354
355 context->result = 0;
356 context->status = status;
357 context->out_param = out_param;
358
359 context->token += dev->cmd.token_mask + 1;
360
361 complete(&context->done);
362 }
363
364 static int mthca_cmd_wait(struct mthca_dev *dev,
365 u64 in_param,
366 u64 *out_param,
367 int out_is_imm,
368 u32 in_modifier,
369 u8 op_modifier,
370 u16 op,
371 unsigned long timeout,
372 u8 *status)
373 {
374 int err = 0;
375 struct mthca_cmd_context *context;
376
377 down(&dev->cmd.event_sem);
378
379 spin_lock(&dev->cmd.context_lock);
380 BUG_ON(dev->cmd.free_head < 0);
381 context = &dev->cmd.context[dev->cmd.free_head];
382 dev->cmd.free_head = context->next;
383 spin_unlock(&dev->cmd.context_lock);
384
385 init_completion(&context->done);
386
387 err = mthca_cmd_post(dev, in_param,
388 out_param ? *out_param : 0,
389 in_modifier, op_modifier,
390 op, context->token, 1);
391 if (err)
392 goto out;
393
394 if (!wait_for_completion_timeout(&context->done, timeout)) {
395 err = -EBUSY;
396 goto out;
397 }
398
399 err = context->result;
400 if (err)
401 goto out;
402
403 *status = context->status;
404 if (*status)
405 mthca_dbg(dev, "Command %02x completed with status %02x\n",
406 op, *status);
407
408 if (out_is_imm)
409 *out_param = context->out_param;
410
411 out:
412 spin_lock(&dev->cmd.context_lock);
413 context->next = dev->cmd.free_head;
414 dev->cmd.free_head = context - dev->cmd.context;
415 spin_unlock(&dev->cmd.context_lock);
416
417 up(&dev->cmd.event_sem);
418 return err;
419 }
420
421 /* Invoke a command with an output mailbox */
422 static int mthca_cmd_box(struct mthca_dev *dev,
423 u64 in_param,
424 u64 out_param,
425 u32 in_modifier,
426 u8 op_modifier,
427 u16 op,
428 unsigned long timeout,
429 u8 *status)
430 {
431 if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS)
432 return mthca_cmd_wait(dev, in_param, &out_param, 0,
433 in_modifier, op_modifier, op,
434 timeout, status);
435 else
436 return mthca_cmd_poll(dev, in_param, &out_param, 0,
437 in_modifier, op_modifier, op,
438 timeout, status);
439 }
440
441 /* Invoke a command with no output parameter */
442 static int mthca_cmd(struct mthca_dev *dev,
443 u64 in_param,
444 u32 in_modifier,
445 u8 op_modifier,
446 u16 op,
447 unsigned long timeout,
448 u8 *status)
449 {
450 return mthca_cmd_box(dev, in_param, 0, in_modifier,
451 op_modifier, op, timeout, status);
452 }
453
454 /*
455 * Invoke a command with an immediate output parameter (and copy the
456 * output into the caller's out_param pointer after the command
457 * executes).
458 */
459 static int mthca_cmd_imm(struct mthca_dev *dev,
460 u64 in_param,
461 u64 *out_param,
462 u32 in_modifier,
463 u8 op_modifier,
464 u16 op,
465 unsigned long timeout,
466 u8 *status)
467 {
468 if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS)
469 return mthca_cmd_wait(dev, in_param, out_param, 1,
470 in_modifier, op_modifier, op,
471 timeout, status);
472 else
473 return mthca_cmd_poll(dev, in_param, out_param, 1,
474 in_modifier, op_modifier, op,
475 timeout, status);
476 }
477
478 int mthca_cmd_init(struct mthca_dev *dev)
479 {
480 mutex_init(&dev->cmd.hcr_mutex);
481 sema_init(&dev->cmd.poll_sem, 1);
482 dev->cmd.flags = 0;
483
484 dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE,
485 MTHCA_HCR_SIZE);
486 if (!dev->hcr) {
487 mthca_err(dev, "Couldn't map command register.");
488 return -ENOMEM;
489 }
490
491 dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev,
492 MTHCA_MAILBOX_SIZE,
493 MTHCA_MAILBOX_SIZE, 0);
494 if (!dev->cmd.pool) {
495 iounmap(dev->hcr);
496 return -ENOMEM;
497 }
498
499 return 0;
500 }
501
502 void mthca_cmd_cleanup(struct mthca_dev *dev)
503 {
504 pci_pool_destroy(dev->cmd.pool);
505 iounmap(dev->hcr);
506 if (dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS)
507 iounmap(dev->cmd.dbell_map);
508 }
509
510 /*
511 * Switch to using events to issue FW commands (should be called after
512 * event queue to command events has been initialized).
513 */
514 int mthca_cmd_use_events(struct mthca_dev *dev)
515 {
516 int i;
517
518 dev->cmd.context = kmalloc(dev->cmd.max_cmds *
519 sizeof (struct mthca_cmd_context),
520 GFP_KERNEL);
521 if (!dev->cmd.context)
522 return -ENOMEM;
523
524 for (i = 0; i < dev->cmd.max_cmds; ++i) {
525 dev->cmd.context[i].token = i;
526 dev->cmd.context[i].next = i + 1;
527 }
528
529 dev->cmd.context[dev->cmd.max_cmds - 1].next = -1;
530 dev->cmd.free_head = 0;
531
532 sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds);
533 spin_lock_init(&dev->cmd.context_lock);
534
535 for (dev->cmd.token_mask = 1;
536 dev->cmd.token_mask < dev->cmd.max_cmds;
537 dev->cmd.token_mask <<= 1)
538 ; /* nothing */
539 --dev->cmd.token_mask;
540
541 dev->cmd.flags |= MTHCA_CMD_USE_EVENTS;
542
543 down(&dev->cmd.poll_sem);
544
545 return 0;
546 }
547
548 /*
549 * Switch back to polling (used when shutting down the device)
550 */
551 void mthca_cmd_use_polling(struct mthca_dev *dev)
552 {
553 int i;
554
555 dev->cmd.flags &= ~MTHCA_CMD_USE_EVENTS;
556
557 for (i = 0; i < dev->cmd.max_cmds; ++i)
558 down(&dev->cmd.event_sem);
559
560 kfree(dev->cmd.context);
561
562 up(&dev->cmd.poll_sem);
563 }
564
565 struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev,
566 gfp_t gfp_mask)
567 {
568 struct mthca_mailbox *mailbox;
569
570 mailbox = kmalloc(sizeof *mailbox, gfp_mask);
571 if (!mailbox)
572 return ERR_PTR(-ENOMEM);
573
574 mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma);
575 if (!mailbox->buf) {
576 kfree(mailbox);
577 return ERR_PTR(-ENOMEM);
578 }
579
580 return mailbox;
581 }
582
583 void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox)
584 {
585 if (!mailbox)
586 return;
587
588 pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma);
589 kfree(mailbox);
590 }
591
592 int mthca_SYS_EN(struct mthca_dev *dev, u8 *status)
593 {
594 u64 out;
595 int ret;
596
597 ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, HZ, status);
598
599 if (*status == MTHCA_CMD_STAT_DDR_MEM_ERR)
600 mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, "
601 "sladdr=%d, SPD source=%s\n",
602 (int) (out >> 6) & 0xf, (int) (out >> 4) & 3,
603 (int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM");
604
605 return ret;
606 }
607
608 int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status)
609 {
610 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, HZ, status);
611 }
612
613 static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm,
614 u64 virt, u8 *status)
615 {
616 struct mthca_mailbox *mailbox;
617 struct mthca_icm_iter iter;
618 __be64 *pages;
619 int lg;
620 int nent = 0;
621 int i;
622 int err = 0;
623 int ts = 0, tc = 0;
624
625 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
626 if (IS_ERR(mailbox))
627 return PTR_ERR(mailbox);
628 memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE);
629 pages = mailbox->buf;
630
631 for (mthca_icm_first(icm, &iter);
632 !mthca_icm_last(&iter);
633 mthca_icm_next(&iter)) {
634 /*
635 * We have to pass pages that are aligned to their
636 * size, so find the least significant 1 in the
637 * address or size and use that as our log2 size.
638 */
639 lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1;
640 if (lg < MTHCA_ICM_PAGE_SHIFT) {
641 mthca_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n",
642 MTHCA_ICM_PAGE_SIZE,
643 (unsigned long long) mthca_icm_addr(&iter),
644 mthca_icm_size(&iter));
645 err = -EINVAL;
646 goto out;
647 }
648 for (i = 0; i < mthca_icm_size(&iter) >> lg; ++i) {
649 if (virt != -1) {
650 pages[nent * 2] = cpu_to_be64(virt);
651 virt += 1 << lg;
652 }
653
654 pages[nent * 2 + 1] =
655 cpu_to_be64((mthca_icm_addr(&iter) + (i << lg)) |
656 (lg - MTHCA_ICM_PAGE_SHIFT));
657 ts += 1 << (lg - 10);
658 ++tc;
659
660 if (++nent == MTHCA_MAILBOX_SIZE / 16) {
661 err = mthca_cmd(dev, mailbox->dma, nent, 0, op,
662 CMD_TIME_CLASS_B, status);
663 if (err || *status)
664 goto out;
665 nent = 0;
666 }
667 }
668 }
669
670 if (nent)
671 err = mthca_cmd(dev, mailbox->dma, nent, 0, op,
672 CMD_TIME_CLASS_B, status);
673
674 switch (op) {
675 case CMD_MAP_FA:
676 mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
677 break;
678 case CMD_MAP_ICM_AUX:
679 mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
680 break;
681 case CMD_MAP_ICM:
682 mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
683 tc, ts, (unsigned long long) virt - (ts << 10));
684 break;
685 }
686
687 out:
688 mthca_free_mailbox(dev, mailbox);
689 return err;
690 }
691
692 int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
693 {
694 return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1, status);
695 }
696
697 int mthca_UNMAP_FA(struct mthca_dev *dev, u8 *status)
698 {
699 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B, status);
700 }
701
702 int mthca_RUN_FW(struct mthca_dev *dev, u8 *status)
703 {
704 return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A, status);
705 }
706
707 static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
708 {
709 unsigned long addr;
710 u16 max_off = 0;
711 int i;
712
713 for (i = 0; i < 8; ++i)
714 max_off = max(max_off, dev->cmd.dbell_offsets[i]);
715
716 if ((base & PAGE_MASK) != ((base + max_off) & PAGE_MASK)) {
717 mthca_warn(dev, "Firmware doorbell region at 0x%016llx, "
718 "length 0x%x crosses a page boundary\n",
719 (unsigned long long) base, max_off);
720 return;
721 }
722
723 addr = pci_resource_start(dev->pdev, 2) +
724 ((pci_resource_len(dev->pdev, 2) - 1) & base);
725 dev->cmd.dbell_map = ioremap(addr, max_off + sizeof(u32));
726 if (!dev->cmd.dbell_map)
727 return;
728
729 dev->cmd.flags |= MTHCA_CMD_POST_DOORBELLS;
730 mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
731 }
732
733 int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)
734 {
735 struct mthca_mailbox *mailbox;
736 u32 *outbox;
737 u64 base;
738 u32 tmp;
739 int err = 0;
740 u8 lg;
741 int i;
742
743 #define QUERY_FW_OUT_SIZE 0x100
744 #define QUERY_FW_VER_OFFSET 0x00
745 #define QUERY_FW_MAX_CMD_OFFSET 0x0f
746 #define QUERY_FW_ERR_START_OFFSET 0x30
747 #define QUERY_FW_ERR_SIZE_OFFSET 0x38
748
749 #define QUERY_FW_CMD_DB_EN_OFFSET 0x10
750 #define QUERY_FW_CMD_DB_OFFSET 0x50
751 #define QUERY_FW_CMD_DB_BASE 0x60
752
753 #define QUERY_FW_START_OFFSET 0x20
754 #define QUERY_FW_END_OFFSET 0x28
755
756 #define QUERY_FW_SIZE_OFFSET 0x00
757 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
758 #define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40
759 #define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48
760
761 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
762 if (IS_ERR(mailbox))
763 return PTR_ERR(mailbox);
764 outbox = mailbox->buf;
765
766 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW,
767 CMD_TIME_CLASS_A, status);
768
769 if (err)
770 goto out;
771
772 MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET);
773 /*
774 * FW subminor version is at more signifant bits than minor
775 * version, so swap here.
776 */
777 dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) |
778 ((dev->fw_ver & 0xffff0000ull) >> 16) |
779 ((dev->fw_ver & 0x0000ffffull) << 16);
780
781 MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
782 dev->cmd.max_cmds = 1 << lg;
783
784 mthca_dbg(dev, "FW version %012llx, max commands %d\n",
785 (unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
786
787 MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET);
788 MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
789
790 mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n",
791 (unsigned long long) dev->catas_err.addr, dev->catas_err.size);
792
793 MTHCA_GET(tmp, outbox, QUERY_FW_CMD_DB_EN_OFFSET);
794 if (tmp & 0x1) {
795 mthca_dbg(dev, "FW supports commands through doorbells\n");
796
797 MTHCA_GET(base, outbox, QUERY_FW_CMD_DB_BASE);
798 for (i = 0; i < MTHCA_CMD_NUM_DBELL_DWORDS; ++i)
799 MTHCA_GET(dev->cmd.dbell_offsets[i], outbox,
800 QUERY_FW_CMD_DB_OFFSET + (i << 1));
801
802 mthca_setup_cmd_doorbells(dev, base);
803 }
804
805 if (mthca_is_memfree(dev)) {
806 MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
807 MTHCA_GET(dev->fw.arbel.clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
808 MTHCA_GET(dev->fw.arbel.eq_arm_base, outbox, QUERY_FW_EQ_ARM_BASE_OFFSET);
809 MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET);
810 mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2);
811
812 /*
813 * Round up number of system pages needed in case
814 * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE.
815 */
816 dev->fw.arbel.fw_pages =
817 ALIGN(dev->fw.arbel.fw_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >>
818 (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT);
819
820 mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n",
821 (unsigned long long) dev->fw.arbel.clr_int_base,
822 (unsigned long long) dev->fw.arbel.eq_arm_base,
823 (unsigned long long) dev->fw.arbel.eq_set_ci_base);
824 } else {
825 MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET);
826 MTHCA_GET(dev->fw.tavor.fw_end, outbox, QUERY_FW_END_OFFSET);
827
828 mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n",
829 (int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10),
830 (unsigned long long) dev->fw.tavor.fw_start,
831 (unsigned long long) dev->fw.tavor.fw_end);
832 }
833
834 out:
835 mthca_free_mailbox(dev, mailbox);
836 return err;
837 }
838
839 int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status)
840 {
841 struct mthca_mailbox *mailbox;
842 u8 info;
843 u32 *outbox;
844 int err = 0;
845
846 #define ENABLE_LAM_OUT_SIZE 0x100
847 #define ENABLE_LAM_START_OFFSET 0x00
848 #define ENABLE_LAM_END_OFFSET 0x08
849 #define ENABLE_LAM_INFO_OFFSET 0x13
850
851 #define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4)
852 #define ENABLE_LAM_INFO_ECC_MASK 0x3
853
854 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
855 if (IS_ERR(mailbox))
856 return PTR_ERR(mailbox);
857 outbox = mailbox->buf;
858
859 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM,
860 CMD_TIME_CLASS_C, status);
861
862 if (err)
863 goto out;
864
865 if (*status == MTHCA_CMD_STAT_LAM_NOT_PRE)
866 goto out;
867
868 MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET);
869 MTHCA_GET(dev->ddr_end, outbox, ENABLE_LAM_END_OFFSET);
870 MTHCA_GET(info, outbox, ENABLE_LAM_INFO_OFFSET);
871
872 if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) !=
873 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
874 mthca_info(dev, "FW reports that HCA-attached memory "
875 "is %s hidden; does not match PCI config\n",
876 (info & ENABLE_LAM_INFO_HIDDEN_FLAG) ?
877 "" : "not");
878 }
879 if (info & ENABLE_LAM_INFO_HIDDEN_FLAG)
880 mthca_dbg(dev, "HCA-attached memory is hidden.\n");
881
882 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
883 (int) ((dev->ddr_end - dev->ddr_start) >> 10),
884 (unsigned long long) dev->ddr_start,
885 (unsigned long long) dev->ddr_end);
886
887 out:
888 mthca_free_mailbox(dev, mailbox);
889 return err;
890 }
891
892 int mthca_DISABLE_LAM(struct mthca_dev *dev, u8 *status)
893 {
894 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C, status);
895 }
896
897 int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status)
898 {
899 struct mthca_mailbox *mailbox;
900 u8 info;
901 u32 *outbox;
902 int err = 0;
903
904 #define QUERY_DDR_OUT_SIZE 0x100
905 #define QUERY_DDR_START_OFFSET 0x00
906 #define QUERY_DDR_END_OFFSET 0x08
907 #define QUERY_DDR_INFO_OFFSET 0x13
908
909 #define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4)
910 #define QUERY_DDR_INFO_ECC_MASK 0x3
911
912 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
913 if (IS_ERR(mailbox))
914 return PTR_ERR(mailbox);
915 outbox = mailbox->buf;
916
917 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR,
918 CMD_TIME_CLASS_A, status);
919
920 if (err)
921 goto out;
922
923 MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET);
924 MTHCA_GET(dev->ddr_end, outbox, QUERY_DDR_END_OFFSET);
925 MTHCA_GET(info, outbox, QUERY_DDR_INFO_OFFSET);
926
927 if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) !=
928 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
929 mthca_info(dev, "FW reports that HCA-attached memory "
930 "is %s hidden; does not match PCI config\n",
931 (info & QUERY_DDR_INFO_HIDDEN_FLAG) ?
932 "" : "not");
933 }
934 if (info & QUERY_DDR_INFO_HIDDEN_FLAG)
935 mthca_dbg(dev, "HCA-attached memory is hidden.\n");
936
937 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
938 (int) ((dev->ddr_end - dev->ddr_start) >> 10),
939 (unsigned long long) dev->ddr_start,
940 (unsigned long long) dev->ddr_end);
941
942 out:
943 mthca_free_mailbox(dev, mailbox);
944 return err;
945 }
946
947 int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
948 struct mthca_dev_lim *dev_lim, u8 *status)
949 {
950 struct mthca_mailbox *mailbox;
951 u32 *outbox;
952 u8 field;
953 u16 size;
954 u16 stat_rate;
955 int err;
956
957 #define QUERY_DEV_LIM_OUT_SIZE 0x100
958 #define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET 0x10
959 #define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET 0x11
960 #define QUERY_DEV_LIM_RSVD_QP_OFFSET 0x12
961 #define QUERY_DEV_LIM_MAX_QP_OFFSET 0x13
962 #define QUERY_DEV_LIM_RSVD_SRQ_OFFSET 0x14
963 #define QUERY_DEV_LIM_MAX_SRQ_OFFSET 0x15
964 #define QUERY_DEV_LIM_RSVD_EEC_OFFSET 0x16
965 #define QUERY_DEV_LIM_MAX_EEC_OFFSET 0x17
966 #define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET 0x19
967 #define QUERY_DEV_LIM_RSVD_CQ_OFFSET 0x1a
968 #define QUERY_DEV_LIM_MAX_CQ_OFFSET 0x1b
969 #define QUERY_DEV_LIM_MAX_MPT_OFFSET 0x1d
970 #define QUERY_DEV_LIM_RSVD_EQ_OFFSET 0x1e
971 #define QUERY_DEV_LIM_MAX_EQ_OFFSET 0x1f
972 #define QUERY_DEV_LIM_RSVD_MTT_OFFSET 0x20
973 #define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET 0x21
974 #define QUERY_DEV_LIM_RSVD_MRW_OFFSET 0x22
975 #define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET 0x23
976 #define QUERY_DEV_LIM_MAX_AV_OFFSET 0x27
977 #define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET 0x29
978 #define QUERY_DEV_LIM_MAX_RES_QP_OFFSET 0x2b
979 #define QUERY_DEV_LIM_MAX_RDMA_OFFSET 0x2f
980 #define QUERY_DEV_LIM_RSZ_SRQ_OFFSET 0x33
981 #define QUERY_DEV_LIM_ACK_DELAY_OFFSET 0x35
982 #define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36
983 #define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37
984 #define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b
985 #define QUERY_DEV_LIM_RATE_SUPPORT_OFFSET 0x3c
986 #define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f
987 #define QUERY_DEV_LIM_FLAGS_OFFSET 0x44
988 #define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48
989 #define QUERY_DEV_LIM_UAR_SZ_OFFSET 0x49
990 #define QUERY_DEV_LIM_PAGE_SZ_OFFSET 0x4b
991 #define QUERY_DEV_LIM_MAX_SG_OFFSET 0x51
992 #define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET 0x52
993 #define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET 0x55
994 #define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56
995 #define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET 0x61
996 #define QUERY_DEV_LIM_RSVD_MCG_OFFSET 0x62
997 #define QUERY_DEV_LIM_MAX_MCG_OFFSET 0x63
998 #define QUERY_DEV_LIM_RSVD_PD_OFFSET 0x64
999 #define QUERY_DEV_LIM_MAX_PD_OFFSET 0x65
1000 #define QUERY_DEV_LIM_RSVD_RDD_OFFSET 0x66
1001 #define QUERY_DEV_LIM_MAX_RDD_OFFSET 0x67
1002 #define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET 0x80
1003 #define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET 0x82
1004 #define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET 0x84
1005 #define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET 0x86
1006 #define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET 0x88
1007 #define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET 0x8a
1008 #define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET 0x8c
1009 #define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET 0x8e
1010 #define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET 0x90
1011 #define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET 0x92
1012 #define QUERY_DEV_LIM_PBL_SZ_OFFSET 0x96
1013 #define QUERY_DEV_LIM_BMME_FLAGS_OFFSET 0x97
1014 #define QUERY_DEV_LIM_RSVD_LKEY_OFFSET 0x98
1015 #define QUERY_DEV_LIM_LAMR_OFFSET 0x9f
1016 #define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0
1017
1018 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1019 if (IS_ERR(mailbox))
1020 return PTR_ERR(mailbox);
1021 outbox = mailbox->buf;
1022
1023 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM,
1024 CMD_TIME_CLASS_A, status);
1025
1026 if (err)
1027 goto out;
1028
1029 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET);
1030 dev_lim->reserved_qps = 1 << (field & 0xf);
1031 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET);
1032 dev_lim->max_qps = 1 << (field & 0x1f);
1033 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET);
1034 dev_lim->reserved_srqs = 1 << (field >> 4);
1035 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET);
1036 dev_lim->max_srqs = 1 << (field & 0x1f);
1037 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET);
1038 dev_lim->reserved_eecs = 1 << (field & 0xf);
1039 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET);
1040 dev_lim->max_eecs = 1 << (field & 0x1f);
1041 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET);
1042 dev_lim->max_cq_sz = 1 << field;
1043 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET);
1044 dev_lim->reserved_cqs = 1 << (field & 0xf);
1045 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET);
1046 dev_lim->max_cqs = 1 << (field & 0x1f);
1047 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET);
1048 dev_lim->max_mpts = 1 << (field & 0x3f);
1049 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET);
1050 dev_lim->reserved_eqs = 1 << (field & 0xf);
1051 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET);
1052 dev_lim->max_eqs = 1 << (field & 0x7);
1053 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET);
1054 dev_lim->reserved_mtts = 1 << (field >> 4);
1055 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET);
1056 dev_lim->max_mrw_sz = 1 << field;
1057 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET);
1058 dev_lim->reserved_mrws = 1 << (field & 0xf);
1059 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET);
1060 dev_lim->max_mtt_seg = 1 << (field & 0x3f);
1061 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET);
1062 dev_lim->max_requester_per_qp = 1 << (field & 0x3f);
1063 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET);
1064 dev_lim->max_responder_per_qp = 1 << (field & 0x3f);
1065 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET);
1066 dev_lim->max_rdma_global = 1 << (field & 0x3f);
1067 MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET);
1068 dev_lim->local_ca_ack_delay = field & 0x1f;
1069 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET);
1070 dev_lim->max_mtu = field >> 4;
1071 dev_lim->max_port_width = field & 0xf;
1072 MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET);
1073 dev_lim->max_vl = field >> 4;
1074 dev_lim->num_ports = field & 0xf;
1075 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET);
1076 dev_lim->max_gids = 1 << (field & 0xf);
1077 MTHCA_GET(stat_rate, outbox, QUERY_DEV_LIM_RATE_SUPPORT_OFFSET);
1078 dev_lim->stat_rate_support = stat_rate;
1079 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET);
1080 dev_lim->max_pkeys = 1 << (field & 0xf);
1081 MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET);
1082 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET);
1083 dev_lim->reserved_uars = field >> 4;
1084 MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET);
1085 dev_lim->uar_size = 1 << ((field & 0x3f) + 20);
1086 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET);
1087 dev_lim->min_page_sz = 1 << field;
1088 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET);
1089 dev_lim->max_sg = field;
1090
1091 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET);
1092 dev_lim->max_desc_sz = size;
1093
1094 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET);
1095 dev_lim->max_qp_per_mcg = 1 << field;
1096 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET);
1097 dev_lim->reserved_mgms = field & 0xf;
1098 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET);
1099 dev_lim->max_mcgs = 1 << field;
1100 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET);
1101 dev_lim->reserved_pds = field >> 4;
1102 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET);
1103 dev_lim->max_pds = 1 << (field & 0x3f);
1104 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET);
1105 dev_lim->reserved_rdds = field >> 4;
1106 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET);
1107 dev_lim->max_rdds = 1 << (field & 0x3f);
1108
1109 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET);
1110 dev_lim->eec_entry_sz = size;
1111 MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET);
1112 dev_lim->qpc_entry_sz = size;
1113 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET);
1114 dev_lim->eeec_entry_sz = size;
1115 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET);
1116 dev_lim->eqpc_entry_sz = size;
1117 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET);
1118 dev_lim->eqc_entry_sz = size;
1119 MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET);
1120 dev_lim->cqc_entry_sz = size;
1121 MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET);
1122 dev_lim->srq_entry_sz = size;
1123 MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET);
1124 dev_lim->uar_scratch_entry_sz = size;
1125
1126 if (mthca_is_memfree(dev)) {
1127 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
1128 dev_lim->max_srq_sz = 1 << field;
1129 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
1130 dev_lim->max_qp_sz = 1 << field;
1131 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET);
1132 dev_lim->hca.arbel.resize_srq = field & 1;
1133 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET);
1134 dev_lim->max_sg = min_t(int, field, dev_lim->max_sg);
1135 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET);
1136 dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz);
1137 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET);
1138 dev_lim->mpt_entry_sz = size;
1139 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET);
1140 dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f);
1141 MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox,
1142 QUERY_DEV_LIM_BMME_FLAGS_OFFSET);
1143 MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox,
1144 QUERY_DEV_LIM_RSVD_LKEY_OFFSET);
1145 MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET);
1146 dev_lim->hca.arbel.lam_required = field & 1;
1147 MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox,
1148 QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET);
1149
1150 if (dev_lim->hca.arbel.bmme_flags & 1)
1151 mthca_dbg(dev, "Base MM extensions: yes "
1152 "(flags %d, max PBL %d, rsvd L_Key %08x)\n",
1153 dev_lim->hca.arbel.bmme_flags,
1154 dev_lim->hca.arbel.max_pbl_sz,
1155 dev_lim->hca.arbel.reserved_lkey);
1156 else
1157 mthca_dbg(dev, "Base MM extensions: no\n");
1158
1159 mthca_dbg(dev, "Max ICM size %lld MB\n",
1160 (unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20);
1161 } else {
1162 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
1163 dev_lim->max_srq_sz = (1 << field) - 1;
1164 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
1165 dev_lim->max_qp_sz = (1 << field) - 1;
1166 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET);
1167 dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f);
1168 dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE;
1169 }
1170
1171 mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
1172 dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz);
1173 mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
1174 dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz);
1175 mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
1176 dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz);
1177 mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
1178 dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz);
1179 mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
1180 dev_lim->reserved_mrws, dev_lim->reserved_mtts);
1181 mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
1182 dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
1183 mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
1184 dev_lim->max_pds, dev_lim->reserved_mgms);
1185 mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
1186 dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz);
1187
1188 mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);
1189
1190 out:
1191 mthca_free_mailbox(dev, mailbox);
1192 return err;
1193 }
1194
1195 static void get_board_id(void *vsd, char *board_id)
1196 {
1197 int i;
1198
1199 #define VSD_OFFSET_SIG1 0x00
1200 #define VSD_OFFSET_SIG2 0xde
1201 #define VSD_OFFSET_MLX_BOARD_ID 0xd0
1202 #define VSD_OFFSET_TS_BOARD_ID 0x20
1203
1204 #define VSD_SIGNATURE_TOPSPIN 0x5ad
1205
1206 memset(board_id, 0, MTHCA_BOARD_ID_LEN);
1207
1208 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1209 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1210 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN);
1211 } else {
1212 /*
1213 * The board ID is a string but the firmware byte
1214 * swaps each 4-byte word before passing it back to
1215 * us. Therefore we need to swab it before printing.
1216 */
1217 for (i = 0; i < 4; ++i)
1218 ((u32 *) board_id)[i] =
1219 swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
1220 }
1221 }
1222
1223 int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
1224 struct mthca_adapter *adapter, u8 *status)
1225 {
1226 struct mthca_mailbox *mailbox;
1227 u32 *outbox;
1228 int err;
1229
1230 #define QUERY_ADAPTER_OUT_SIZE 0x100
1231 #define QUERY_ADAPTER_VENDOR_ID_OFFSET 0x00
1232 #define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04
1233 #define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08
1234 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
1235 #define QUERY_ADAPTER_VSD_OFFSET 0x20
1236
1237 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1238 if (IS_ERR(mailbox))
1239 return PTR_ERR(mailbox);
1240 outbox = mailbox->buf;
1241
1242 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER,
1243 CMD_TIME_CLASS_A, status);
1244
1245 if (err)
1246 goto out;
1247
1248 MTHCA_GET(adapter->vendor_id, outbox, QUERY_ADAPTER_VENDOR_ID_OFFSET);
1249 MTHCA_GET(adapter->device_id, outbox, QUERY_ADAPTER_DEVICE_ID_OFFSET);
1250 MTHCA_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
1251 MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1252
1253 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1254 adapter->board_id);
1255
1256 out:
1257 mthca_free_mailbox(dev, mailbox);
1258 return err;
1259 }
1260
1261 int mthca_INIT_HCA(struct mthca_dev *dev,
1262 struct mthca_init_hca_param *param,
1263 u8 *status)
1264 {
1265 struct mthca_mailbox *mailbox;
1266 __be32 *inbox;
1267 int err;
1268
1269 #define INIT_HCA_IN_SIZE 0x200
1270 #define INIT_HCA_FLAGS1_OFFSET 0x00c
1271 #define INIT_HCA_FLAGS2_OFFSET 0x014
1272 #define INIT_HCA_QPC_OFFSET 0x020
1273 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1274 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1275 #define INIT_HCA_EEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x20)
1276 #define INIT_HCA_LOG_EEC_OFFSET (INIT_HCA_QPC_OFFSET + 0x27)
1277 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1278 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1279 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1280 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1281 #define INIT_HCA_EQPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1282 #define INIT_HCA_EEEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1283 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1284 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1285 #define INIT_HCA_RDB_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1286 #define INIT_HCA_UDAV_OFFSET 0x0b0
1287 #define INIT_HCA_UDAV_LKEY_OFFSET (INIT_HCA_UDAV_OFFSET + 0x0)
1288 #define INIT_HCA_UDAV_PD_OFFSET (INIT_HCA_UDAV_OFFSET + 0x4)
1289 #define INIT_HCA_MCAST_OFFSET 0x0c0
1290 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1291 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1292 #define INIT_HCA_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
1293 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1294 #define INIT_HCA_TPT_OFFSET 0x0f0
1295 #define INIT_HCA_MPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1296 #define INIT_HCA_MTT_SEG_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x09)
1297 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1298 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1299 #define INIT_HCA_UAR_OFFSET 0x120
1300 #define INIT_HCA_UAR_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x00)
1301 #define INIT_HCA_UARC_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x09)
1302 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1303 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1304 #define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10)
1305 #define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18)
1306
1307 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1308 if (IS_ERR(mailbox))
1309 return PTR_ERR(mailbox);
1310 inbox = mailbox->buf;
1311
1312 memset(inbox, 0, INIT_HCA_IN_SIZE);
1313
1314 if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
1315 MTHCA_PUT(inbox, 0x1, INIT_HCA_FLAGS1_OFFSET);
1316
1317 #if defined(__LITTLE_ENDIAN)
1318 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1319 #elif defined(__BIG_ENDIAN)
1320 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1 << 1);
1321 #else
1322 #error Host endianness not defined
1323 #endif
1324 /* Check port for UD address vector: */
1325 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1);
1326
1327 /* We leave wqe_quota, responder_exu, etc as 0 (default) */
1328
1329 /* QPC/EEC/CQC/EQC/RDB attributes */
1330
1331 MTHCA_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1332 MTHCA_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1333 MTHCA_PUT(inbox, param->eec_base, INIT_HCA_EEC_BASE_OFFSET);
1334 MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET);
1335 MTHCA_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1336 MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1337 MTHCA_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1338 MTHCA_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1339 MTHCA_PUT(inbox, param->eqpc_base, INIT_HCA_EQPC_BASE_OFFSET);
1340 MTHCA_PUT(inbox, param->eeec_base, INIT_HCA_EEEC_BASE_OFFSET);
1341 MTHCA_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1342 MTHCA_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1343 MTHCA_PUT(inbox, param->rdb_base, INIT_HCA_RDB_BASE_OFFSET);
1344
1345 /* UD AV attributes */
1346
1347 /* multicast attributes */
1348
1349 MTHCA_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
1350 MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1351 MTHCA_PUT(inbox, param->mc_hash_sz, INIT_HCA_MC_HASH_SZ_OFFSET);
1352 MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1353
1354 /* TPT attributes */
1355
1356 MTHCA_PUT(inbox, param->mpt_base, INIT_HCA_MPT_BASE_OFFSET);
1357 if (!mthca_is_memfree(dev))
1358 MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET);
1359 MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
1360 MTHCA_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
1361
1362 /* UAR attributes */
1363 {
1364 u8 uar_page_sz = PAGE_SHIFT - 12;
1365 MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1366 }
1367
1368 MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET);
1369
1370 if (mthca_is_memfree(dev)) {
1371 MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET);
1372 MTHCA_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
1373 MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET);
1374 }
1375
1376 err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, HZ, status);
1377
1378 mthca_free_mailbox(dev, mailbox);
1379 return err;
1380 }
1381
1382 int mthca_INIT_IB(struct mthca_dev *dev,
1383 struct mthca_init_ib_param *param,
1384 int port, u8 *status)
1385 {
1386 struct mthca_mailbox *mailbox;
1387 u32 *inbox;
1388 int err;
1389 u32 flags;
1390
1391 #define INIT_IB_IN_SIZE 56
1392 #define INIT_IB_FLAGS_OFFSET 0x00
1393 #define INIT_IB_FLAG_SIG (1 << 18)
1394 #define INIT_IB_FLAG_NG (1 << 17)
1395 #define INIT_IB_FLAG_G0 (1 << 16)
1396 #define INIT_IB_VL_SHIFT 4
1397 #define INIT_IB_PORT_WIDTH_SHIFT 8
1398 #define INIT_IB_MTU_SHIFT 12
1399 #define INIT_IB_MAX_GID_OFFSET 0x06
1400 #define INIT_IB_MAX_PKEY_OFFSET 0x0a
1401 #define INIT_IB_GUID0_OFFSET 0x10
1402 #define INIT_IB_NODE_GUID_OFFSET 0x18
1403 #define INIT_IB_SI_GUID_OFFSET 0x20
1404
1405 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1406 if (IS_ERR(mailbox))
1407 return PTR_ERR(mailbox);
1408 inbox = mailbox->buf;
1409
1410 memset(inbox, 0, INIT_IB_IN_SIZE);
1411
1412 flags = 0;
1413 flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0;
1414 flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0;
1415 flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0;
1416 flags |= param->vl_cap << INIT_IB_VL_SHIFT;
1417 flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT;
1418 flags |= param->mtu_cap << INIT_IB_MTU_SHIFT;
1419 MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET);
1420
1421 MTHCA_PUT(inbox, param->gid_cap, INIT_IB_MAX_GID_OFFSET);
1422 MTHCA_PUT(inbox, param->pkey_cap, INIT_IB_MAX_PKEY_OFFSET);
1423 MTHCA_PUT(inbox, param->guid0, INIT_IB_GUID0_OFFSET);
1424 MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET);
1425 MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET);
1426
1427 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB,
1428 CMD_TIME_CLASS_A, status);
1429
1430 mthca_free_mailbox(dev, mailbox);
1431 return err;
1432 }
1433
1434 int mthca_CLOSE_IB(struct mthca_dev *dev, int port, u8 *status)
1435 {
1436 return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, HZ, status);
1437 }
1438
1439 int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status)
1440 {
1441 return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, HZ, status);
1442 }
1443
1444 int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param,
1445 int port, u8 *status)
1446 {
1447 struct mthca_mailbox *mailbox;
1448 u32 *inbox;
1449 int err;
1450 u32 flags = 0;
1451
1452 #define SET_IB_IN_SIZE 0x40
1453 #define SET_IB_FLAGS_OFFSET 0x00
1454 #define SET_IB_FLAG_SIG (1 << 18)
1455 #define SET_IB_FLAG_RQK (1 << 0)
1456 #define SET_IB_CAP_MASK_OFFSET 0x04
1457 #define SET_IB_SI_GUID_OFFSET 0x08
1458
1459 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1460 if (IS_ERR(mailbox))
1461 return PTR_ERR(mailbox);
1462 inbox = mailbox->buf;
1463
1464 memset(inbox, 0, SET_IB_IN_SIZE);
1465
1466 flags |= param->set_si_guid ? SET_IB_FLAG_SIG : 0;
1467 flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0;
1468 MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET);
1469
1470 MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET);
1471 MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET);
1472
1473 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB,
1474 CMD_TIME_CLASS_B, status);
1475
1476 mthca_free_mailbox(dev, mailbox);
1477 return err;
1478 }
1479
1480 int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt, u8 *status)
1481 {
1482 return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt, status);
1483 }
1484
1485 int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt, u8 *status)
1486 {
1487 struct mthca_mailbox *mailbox;
1488 __be64 *inbox;
1489 int err;
1490
1491 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1492 if (IS_ERR(mailbox))
1493 return PTR_ERR(mailbox);
1494 inbox = mailbox->buf;
1495
1496 inbox[0] = cpu_to_be64(virt);
1497 inbox[1] = cpu_to_be64(dma_addr);
1498
1499 err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM,
1500 CMD_TIME_CLASS_B, status);
1501
1502 mthca_free_mailbox(dev, mailbox);
1503
1504 if (!err)
1505 mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n",
1506 (unsigned long long) dma_addr, (unsigned long long) virt);
1507
1508 return err;
1509 }
1510
1511 int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count, u8 *status)
1512 {
1513 mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n",
1514 page_count, (unsigned long long) virt);
1515
1516 return mthca_cmd(dev, virt, page_count, 0, CMD_UNMAP_ICM, CMD_TIME_CLASS_B, status);
1517 }
1518
1519 int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
1520 {
1521 return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1, status);
1522 }
1523
1524 int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev, u8 *status)
1525 {
1526 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B, status);
1527 }
1528
1529 int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages,
1530 u8 *status)
1531 {
1532 int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, 0, CMD_SET_ICM_SIZE,
1533 CMD_TIME_CLASS_A, status);
1534
1535 if (ret || status)
1536 return ret;
1537
1538 /*
1539 * Round up number of system pages needed in case
1540 * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE.
1541 */
1542 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >>
1543 (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT);
1544
1545 return 0;
1546 }
1547
1548 int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1549 int mpt_index, u8 *status)
1550 {
1551 return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT,
1552 CMD_TIME_CLASS_B, status);
1553 }
1554
1555 int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1556 int mpt_index, u8 *status)
1557 {
1558 return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
1559 !mailbox, CMD_HW2SW_MPT,
1560 CMD_TIME_CLASS_B, status);
1561 }
1562
1563 int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1564 int num_mtt, u8 *status)
1565 {
1566 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
1567 CMD_TIME_CLASS_B, status);
1568 }
1569
1570 int mthca_SYNC_TPT(struct mthca_dev *dev, u8 *status)
1571 {
1572 return mthca_cmd(dev, 0, 0, 0, CMD_SYNC_TPT, CMD_TIME_CLASS_B, status);
1573 }
1574
1575 int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
1576 int eq_num, u8 *status)
1577 {
1578 mthca_dbg(dev, "%s mask %016llx for eqn %d\n",
1579 unmap ? "Clearing" : "Setting",
1580 (unsigned long long) event_mask, eq_num);
1581 return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num,
1582 0, CMD_MAP_EQ, CMD_TIME_CLASS_B, status);
1583 }
1584
1585 int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1586 int eq_num, u8 *status)
1587 {
1588 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
1589 CMD_TIME_CLASS_A, status);
1590 }
1591
1592 int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1593 int eq_num, u8 *status)
1594 {
1595 return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0,
1596 CMD_HW2SW_EQ,
1597 CMD_TIME_CLASS_A, status);
1598 }
1599
1600 int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1601 int cq_num, u8 *status)
1602 {
1603 return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ,
1604 CMD_TIME_CLASS_A, status);
1605 }
1606
1607 int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1608 int cq_num, u8 *status)
1609 {
1610 return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0,
1611 CMD_HW2SW_CQ,
1612 CMD_TIME_CLASS_A, status);
1613 }
1614
1615 int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size,
1616 u8 *status)
1617 {
1618 struct mthca_mailbox *mailbox;
1619 __be32 *inbox;
1620 int err;
1621
1622 #define RESIZE_CQ_IN_SIZE 0x40
1623 #define RESIZE_CQ_LOG_SIZE_OFFSET 0x0c
1624 #define RESIZE_CQ_LKEY_OFFSET 0x1c
1625
1626 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1627 if (IS_ERR(mailbox))
1628 return PTR_ERR(mailbox);
1629 inbox = mailbox->buf;
1630
1631 memset(inbox, 0, RESIZE_CQ_IN_SIZE);
1632 /*
1633 * Leave start address fields zeroed out -- mthca assumes that
1634 * MRs for CQs always start at virtual address 0.
1635 */
1636 MTHCA_PUT(inbox, log_size, RESIZE_CQ_LOG_SIZE_OFFSET);
1637 MTHCA_PUT(inbox, lkey, RESIZE_CQ_LKEY_OFFSET);
1638
1639 err = mthca_cmd(dev, mailbox->dma, cq_num, 1, CMD_RESIZE_CQ,
1640 CMD_TIME_CLASS_B, status);
1641
1642 mthca_free_mailbox(dev, mailbox);
1643 return err;
1644 }
1645
1646 int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1647 int srq_num, u8 *status)
1648 {
1649 return mthca_cmd(dev, mailbox->dma, srq_num, 0, CMD_SW2HW_SRQ,
1650 CMD_TIME_CLASS_A, status);
1651 }
1652
1653 int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1654 int srq_num, u8 *status)
1655 {
1656 return mthca_cmd_box(dev, 0, mailbox->dma, srq_num, 0,
1657 CMD_HW2SW_SRQ,
1658 CMD_TIME_CLASS_A, status);
1659 }
1660
1661 int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num,
1662 struct mthca_mailbox *mailbox, u8 *status)
1663 {
1664 return mthca_cmd_box(dev, 0, mailbox->dma, num, 0,
1665 CMD_QUERY_SRQ, CMD_TIME_CLASS_A, status);
1666 }
1667
1668 int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit, u8 *status)
1669 {
1670 return mthca_cmd(dev, limit, srq_num, 0, CMD_ARM_SRQ,
1671 CMD_TIME_CLASS_B, status);
1672 }
1673
1674 int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur,
1675 enum ib_qp_state next, u32 num, int is_ee,
1676 struct mthca_mailbox *mailbox, u32 optmask,
1677 u8 *status)
1678 {
1679 static const u16 op[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
1680 [IB_QPS_RESET] = {
1681 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1682 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1683 [IB_QPS_INIT] = CMD_RST2INIT_QPEE,
1684 },
1685 [IB_QPS_INIT] = {
1686 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1687 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1688 [IB_QPS_INIT] = CMD_INIT2INIT_QPEE,
1689 [IB_QPS_RTR] = CMD_INIT2RTR_QPEE,
1690 },
1691 [IB_QPS_RTR] = {
1692 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1693 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1694 [IB_QPS_RTS] = CMD_RTR2RTS_QPEE,
1695 },
1696 [IB_QPS_RTS] = {
1697 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1698 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1699 [IB_QPS_RTS] = CMD_RTS2RTS_QPEE,
1700 [IB_QPS_SQD] = CMD_RTS2SQD_QPEE,
1701 },
1702 [IB_QPS_SQD] = {
1703 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1704 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1705 [IB_QPS_RTS] = CMD_SQD2RTS_QPEE,
1706 [IB_QPS_SQD] = CMD_SQD2SQD_QPEE,
1707 },
1708 [IB_QPS_SQE] = {
1709 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1710 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1711 [IB_QPS_RTS] = CMD_SQERR2RTS_QPEE,
1712 },
1713 [IB_QPS_ERR] = {
1714 [IB_QPS_RESET] = CMD_ERR2RST_QPEE,
1715 [IB_QPS_ERR] = CMD_2ERR_QPEE,
1716 }
1717 };
1718
1719 u8 op_mod = 0;
1720 int my_mailbox = 0;
1721 int err;
1722
1723 if (op[cur][next] == CMD_ERR2RST_QPEE) {
1724 op_mod = 3; /* don't write outbox, any->reset */
1725
1726 /* For debugging */
1727 if (!mailbox) {
1728 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1729 if (!IS_ERR(mailbox)) {
1730 my_mailbox = 1;
1731 op_mod = 2; /* write outbox, any->reset */
1732 } else
1733 mailbox = NULL;
1734 }
1735
1736 err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0,
1737 (!!is_ee << 24) | num, op_mod,
1738 op[cur][next], CMD_TIME_CLASS_C, status);
1739
1740 if (0 && mailbox) {
1741 int i;
1742 mthca_dbg(dev, "Dumping QP context:\n");
1743 printk(" %08x\n", be32_to_cpup(mailbox->buf));
1744 for (i = 0; i < 0x100 / 4; ++i) {
1745 if (i % 8 == 0)
1746 printk("[%02x] ", i * 4);
1747 printk(" %08x",
1748 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2]));
1749 if ((i + 1) % 8 == 0)
1750 printk("\n");
1751 }
1752 }
1753
1754 if (my_mailbox)
1755 mthca_free_mailbox(dev, mailbox);
1756 } else {
1757 if (0) {
1758 int i;
1759 mthca_dbg(dev, "Dumping QP context:\n");
1760 printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf));
1761 for (i = 0; i < 0x100 / 4; ++i) {
1762 if (i % 8 == 0)
1763 printk(" [%02x] ", i * 4);
1764 printk(" %08x",
1765 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2]));
1766 if ((i + 1) % 8 == 0)
1767 printk("\n");
1768 }
1769 }
1770
1771 err = mthca_cmd(dev, mailbox->dma, optmask | (!!is_ee << 24) | num,
1772 op_mod, op[cur][next], CMD_TIME_CLASS_C, status);
1773 }
1774
1775 return err;
1776 }
1777
1778 int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee,
1779 struct mthca_mailbox *mailbox, u8 *status)
1780 {
1781 return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0,
1782 CMD_QUERY_QPEE, CMD_TIME_CLASS_A, status);
1783 }
1784
1785 int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn,
1786 u8 *status)
1787 {
1788 u8 op_mod;
1789
1790 switch (type) {
1791 case IB_QPT_SMI:
1792 op_mod = 0;
1793 break;
1794 case IB_QPT_GSI:
1795 op_mod = 1;
1796 break;
1797 case IB_QPT_RAW_IPV6:
1798 op_mod = 2;
1799 break;
1800 case IB_QPT_RAW_ETY:
1801 op_mod = 3;
1802 break;
1803 default:
1804 return -EINVAL;
1805 }
1806
1807 return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP,
1808 CMD_TIME_CLASS_B, status);
1809 }
1810
1811 int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
1812 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
1813 void *in_mad, void *response_mad, u8 *status)
1814 {
1815 struct mthca_mailbox *inmailbox, *outmailbox;
1816 void *inbox;
1817 int err;
1818 u32 in_modifier = port;
1819 u8 op_modifier = 0;
1820
1821 #define MAD_IFC_BOX_SIZE 0x400
1822 #define MAD_IFC_MY_QPN_OFFSET 0x100
1823 #define MAD_IFC_RQPN_OFFSET 0x104
1824 #define MAD_IFC_SL_OFFSET 0x108
1825 #define MAD_IFC_G_PATH_OFFSET 0x109
1826 #define MAD_IFC_RLID_OFFSET 0x10a
1827 #define MAD_IFC_PKEY_OFFSET 0x10e
1828 #define MAD_IFC_GRH_OFFSET 0x140
1829
1830 inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1831 if (IS_ERR(inmailbox))
1832 return PTR_ERR(inmailbox);
1833 inbox = inmailbox->buf;
1834
1835 outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1836 if (IS_ERR(outmailbox)) {
1837 mthca_free_mailbox(dev, inmailbox);
1838 return PTR_ERR(outmailbox);
1839 }
1840
1841 memcpy(inbox, in_mad, 256);
1842
1843 /*
1844 * Key check traps can't be generated unless we have in_wc to
1845 * tell us where to send the trap.
1846 */
1847 if (ignore_mkey || !in_wc)
1848 op_modifier |= 0x1;
1849 if (ignore_bkey || !in_wc)
1850 op_modifier |= 0x2;
1851
1852 if (in_wc) {
1853 u8 val;
1854
1855 memset(inbox + 256, 0, 256);
1856
1857 MTHCA_PUT(inbox, in_wc->qp_num, MAD_IFC_MY_QPN_OFFSET);
1858 MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET);
1859
1860 val = in_wc->sl << 4;
1861 MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET);
1862
1863 val = in_wc->dlid_path_bits |
1864 (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0);
1865 MTHCA_PUT(inbox, val, MAD_IFC_GRH_OFFSET);
1866
1867 MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET);
1868 MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET);
1869
1870 if (in_grh)
1871 memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40);
1872
1873 op_modifier |= 0x10;
1874
1875 in_modifier |= in_wc->slid << 16;
1876 }
1877
1878 err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma,
1879 in_modifier, op_modifier,
1880 CMD_MAD_IFC, CMD_TIME_CLASS_C, status);
1881
1882 if (!err && !*status)
1883 memcpy(response_mad, outmailbox->buf, 256);
1884
1885 mthca_free_mailbox(dev, inmailbox);
1886 mthca_free_mailbox(dev, outmailbox);
1887 return err;
1888 }
1889
1890 int mthca_READ_MGM(struct mthca_dev *dev, int index,
1891 struct mthca_mailbox *mailbox, u8 *status)
1892 {
1893 return mthca_cmd_box(dev, 0, mailbox->dma, index, 0,
1894 CMD_READ_MGM, CMD_TIME_CLASS_A, status);
1895 }
1896
1897 int mthca_WRITE_MGM(struct mthca_dev *dev, int index,
1898 struct mthca_mailbox *mailbox, u8 *status)
1899 {
1900 return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM,
1901 CMD_TIME_CLASS_A, status);
1902 }
1903
1904 int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1905 u16 *hash, u8 *status)
1906 {
1907 u64 imm;
1908 int err;
1909
1910 err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH,
1911 CMD_TIME_CLASS_A, status);
1912
1913 *hash = imm;
1914 return err;
1915 }
1916
1917 int mthca_NOP(struct mthca_dev *dev, u8 *status)
1918 {
1919 return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100), status);
1920 }
Support for the Chinese Samsung S3C2440 based development boards