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IB/mthca: fix QP size limits for mem-free HCAs
[linux-block.git] / drivers / infiniband / hw / mthca / mthca_cmd.c
CommitLineData
1da177e4
LT		 1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
2a1d9b7f 3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
3d155f8c 4 * Copyright (c) 2005 Cisco Systems. All rights reserved.
1da177e4
LT		 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/sched.h>
38#include <linux/pci.h>
39#include <linux/errno.h>
40#include <asm/io.h>
a4d61e84 41#include <rdma/ib_mad.h>
1da177e4
LT		 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
50enum {
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
62enum {
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,
ec34a922 113 CMD_ARM_SRQ = 0x40,
1da177e4
LT		 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 */
158enum {
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
164enum {
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
171enum {
172 GO_BIT_TIMEOUT = HZ * 10
173};
174
175struct mthca_cmd_context {
176 struct completion done;
177 struct timer_list timer;
178 int result;
179 int next;
180 u64 out_param;
181 u16 token;
182 u8 status;
183};
184
185static inline int go_bit(struct mthca_dev *dev)
186{
187 return readl(dev->hcr + HCR_STATUS_OFFSET) &
188 swab32(1 << HCR_GO_BIT);
189}
190
191static int mthca_cmd_post(struct mthca_dev *dev,
192 u64 in_param,
193 u64 out_param,
194 u32 in_modifier,
195 u8 op_modifier,
196 u16 op,
197 u16 token,
198 int event)
199{
200 int err = 0;
201
202 if (down_interruptible(&dev->cmd.hcr_sem))
203 return -EINTR;
204
205 if (event) {
206 unsigned long end = jiffies + GO_BIT_TIMEOUT;
207
208 while (go_bit(dev) && time_before(jiffies, end)) {
209 set_current_state(TASK_RUNNING);
210 schedule();
211 }
212 }
213
214 if (go_bit(dev)) {
215 err = -EAGAIN;
216 goto out;
217 }
218
219 /*
220 * We use writel (instead of something like memcpy_toio)
221 * because writes of less than 32 bits to the HCR don't work
222 * (and some architectures such as ia64 implement memcpy_toio
223 * in terms of writeb).
224 */
97f52eb4
SH		 225 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), dev->hcr + 0 * 4);
226 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), dev->hcr + 1 * 4);
227 __raw_writel((__force u32) cpu_to_be32(in_modifier), dev->hcr + 2 * 4);
228 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), dev->hcr + 3 * 4);
229 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4);
230 __raw_writel((__force u32) cpu_to_be32(token << 16), dev->hcr + 5 * 4);
1da177e4
LT		 231
232 /* __raw_writel may not order writes. */
233 wmb();
234
97f52eb4
SH		 235 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
236 (event ? (1 << HCA_E_BIT) : 0) |
237 (op_modifier << HCR_OPMOD_SHIFT) |
238 op), dev->hcr + 6 * 4);
1da177e4
LT		 239
240out:
241 up(&dev->cmd.hcr_sem);
242 return err;
243}
244
245static int mthca_cmd_poll(struct mthca_dev *dev,
246 u64 in_param,
247 u64 *out_param,
248 int out_is_imm,
249 u32 in_modifier,
250 u8 op_modifier,
251 u16 op,
252 unsigned long timeout,
253 u8 *status)
254{
255 int err = 0;
256 unsigned long end;
257
258 if (down_interruptible(&dev->cmd.poll_sem))
259 return -EINTR;
260
261 err = mthca_cmd_post(dev, in_param,
262 out_param ? *out_param : 0,
263 in_modifier, op_modifier,
264 op, CMD_POLL_TOKEN, 0);
265 if (err)
266 goto out;
267
268 end = timeout + jiffies;
269 while (go_bit(dev) && time_before(jiffies, end)) {
270 set_current_state(TASK_RUNNING);
271 schedule();
272 }
273
274 if (go_bit(dev)) {
275 err = -EBUSY;
276 goto out;
277 }
278
97f52eb4
SH		 279 if (out_is_imm)
280 *out_param =
281 (u64) be32_to_cpu((__force __be32)
282 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
283 (u64) be32_to_cpu((__force __be32)
284 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET + 4));
1da177e4 285
97f52eb4 286 *status = be32_to_cpu((__force __be32) __raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24;
1da177e4
LT		 287
288out:
289 up(&dev->cmd.poll_sem);
290 return err;
291}
292
293void mthca_cmd_event(struct mthca_dev *dev,
294 u16 token,
295 u8 status,
296 u64 out_param)
297{
298 struct mthca_cmd_context *context =
299 &dev->cmd.context[token & dev->cmd.token_mask];
300
301 /* previously timed out command completing at long last */
302 if (token != context->token)
303 return;
304
305 context->result = 0;
306 context->status = status;
307 context->out_param = out_param;
308
309 context->token += dev->cmd.token_mask + 1;
310
311 complete(&context->done);
312}
313
314static void event_timeout(unsigned long context_ptr)
315{
316 struct mthca_cmd_context *context =
317 (struct mthca_cmd_context *) context_ptr;
318
319 context->result = -EBUSY;
320 complete(&context->done);
321}
322
323static int mthca_cmd_wait(struct mthca_dev *dev,
324 u64 in_param,
325 u64 *out_param,
326 int out_is_imm,
327 u32 in_modifier,
328 u8 op_modifier,
329 u16 op,
330 unsigned long timeout,
331 u8 *status)
332{
333 int err = 0;
334 struct mthca_cmd_context *context;
335
336 if (down_interruptible(&dev->cmd.event_sem))
337 return -EINTR;
338
339 spin_lock(&dev->cmd.context_lock);
340 BUG_ON(dev->cmd.free_head < 0);
341 context = &dev->cmd.context[dev->cmd.free_head];
342 dev->cmd.free_head = context->next;
343 spin_unlock(&dev->cmd.context_lock);
344
345 init_completion(&context->done);
346
347 err = mthca_cmd_post(dev, in_param,
348 out_param ? *out_param : 0,
349 in_modifier, op_modifier,
350 op, context->token, 1);
351 if (err)
352 goto out;
353
354 context->timer.expires = jiffies + timeout;
355 add_timer(&context->timer);
356
357 wait_for_completion(&context->done);
358 del_timer_sync(&context->timer);
359
360 err = context->result;
361 if (err)
362 goto out;
363
364 *status = context->status;
365 if (*status)
366 mthca_dbg(dev, "Command %02x completed with status %02x\n",
367 op, *status);
368
369 if (out_is_imm)
370 *out_param = context->out_param;
371
372out:
373 spin_lock(&dev->cmd.context_lock);
374 context->next = dev->cmd.free_head;
375 dev->cmd.free_head = context - dev->cmd.context;
376 spin_unlock(&dev->cmd.context_lock);
377
378 up(&dev->cmd.event_sem);
379 return err;
380}
381
382/* Invoke a command with an output mailbox */
383static int mthca_cmd_box(struct mthca_dev *dev,
384 u64 in_param,
385 u64 out_param,
386 u32 in_modifier,
387 u8 op_modifier,
388 u16 op,
389 unsigned long timeout,
390 u8 *status)
391{
392 if (dev->cmd.use_events)
393 return mthca_cmd_wait(dev, in_param, &out_param, 0,
394 in_modifier, op_modifier, op,
395 timeout, status);
396 else
397 return mthca_cmd_poll(dev, in_param, &out_param, 0,
398 in_modifier, op_modifier, op,
399 timeout, status);
400}
401
402/* Invoke a command with no output parameter */
403static int mthca_cmd(struct mthca_dev *dev,
404 u64 in_param,
405 u32 in_modifier,
406 u8 op_modifier,
407 u16 op,
408 unsigned long timeout,
409 u8 *status)
410{
411 return mthca_cmd_box(dev, in_param, 0, in_modifier,
412 op_modifier, op, timeout, status);
413}
414
415/*
416 * Invoke a command with an immediate output parameter (and copy the
417 * output into the caller's out_param pointer after the command
418 * executes).
419 */
420static int mthca_cmd_imm(struct mthca_dev *dev,
421 u64 in_param,
422 u64 *out_param,
423 u32 in_modifier,
424 u8 op_modifier,
425 u16 op,
426 unsigned long timeout,
427 u8 *status)
428{
429 if (dev->cmd.use_events)
430 return mthca_cmd_wait(dev, in_param, out_param, 1,
431 in_modifier, op_modifier, op,
432 timeout, status);
433 else
434 return mthca_cmd_poll(dev, in_param, out_param, 1,
435 in_modifier, op_modifier, op,
436 timeout, status);
437}
438
80fd8238
RD		 439int mthca_cmd_init(struct mthca_dev *dev)
440{
441 sema_init(&dev->cmd.hcr_sem, 1);
442 sema_init(&dev->cmd.poll_sem, 1);
443 dev->cmd.use_events = 0;
444
445 dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE,
446 MTHCA_HCR_SIZE);
447 if (!dev->hcr) {
448 mthca_err(dev, "Couldn't map command register.");
449 return -ENOMEM;
450 }
451
ed878458
RD		 452 dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev,
453 MTHCA_MAILBOX_SIZE,
454 MTHCA_MAILBOX_SIZE, 0);
455 if (!dev->cmd.pool) {
456 iounmap(dev->hcr);
457 return -ENOMEM;
458 }
459
80fd8238
RD		 460 return 0;
461}
462
463void mthca_cmd_cleanup(struct mthca_dev *dev)
464{
ed878458 465 pci_pool_destroy(dev->cmd.pool);
80fd8238
RD		 466 iounmap(dev->hcr);
467}
468
1da177e4
LT		 469/*
470 * Switch to using events to issue FW commands (should be called after
471 * event queue to command events has been initialized).
472 */
473int mthca_cmd_use_events(struct mthca_dev *dev)
474{
475 int i;
476
477 dev->cmd.context = kmalloc(dev->cmd.max_cmds *
478 sizeof (struct mthca_cmd_context),
479 GFP_KERNEL);
480 if (!dev->cmd.context)
481 return -ENOMEM;
482
483 for (i = 0; i < dev->cmd.max_cmds; ++i) {
484 dev->cmd.context[i].token = i;
485 dev->cmd.context[i].next = i + 1;
486 init_timer(&dev->cmd.context[i].timer);
487 dev->cmd.context[i].timer.data =
488 (unsigned long) &dev->cmd.context[i];
489 dev->cmd.context[i].timer.function = event_timeout;
490 }
491
492 dev->cmd.context[dev->cmd.max_cmds - 1].next = -1;
493 dev->cmd.free_head = 0;
494
495 sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds);
496 spin_lock_init(&dev->cmd.context_lock);
497
498 for (dev->cmd.token_mask = 1;
499 dev->cmd.token_mask < dev->cmd.max_cmds;
500 dev->cmd.token_mask <<= 1)
501 ; /* nothing */
502 --dev->cmd.token_mask;
503
504 dev->cmd.use_events = 1;
505 down(&dev->cmd.poll_sem);
506
507 return 0;
508}
509
510/*
511 * Switch back to polling (used when shutting down the device)
512 */
513void mthca_cmd_use_polling(struct mthca_dev *dev)
514{
515 int i;
516
517 dev->cmd.use_events = 0;
518
519 for (i = 0; i < dev->cmd.max_cmds; ++i)
520 down(&dev->cmd.event_sem);
521
522 kfree(dev->cmd.context);
523
524 up(&dev->cmd.poll_sem);
525}
526
ed878458 527struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev,
87b750dc 528 gfp_t gfp_mask)
ed878458
RD		 529{
530 struct mthca_mailbox *mailbox;
531
532 mailbox = kmalloc(sizeof *mailbox, gfp_mask);
533 if (!mailbox)
534 return ERR_PTR(-ENOMEM);
535
536 mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma);
537 if (!mailbox->buf) {
538 kfree(mailbox);
539 return ERR_PTR(-ENOMEM);
540 }
541
542 return mailbox;
543}
544
545void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox)
546{
547 if (!mailbox)
548 return;
549
550 pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma);
551 kfree(mailbox);
552}
553
1da177e4
LT		 554int mthca_SYS_EN(struct mthca_dev *dev, u8 *status)
555{
556 u64 out;
557 int ret;
558
559 ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, HZ, status);
560
561 if (*status == MTHCA_CMD_STAT_DDR_MEM_ERR)
562 mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, "
563 "sladdr=%d, SPD source=%s\n",
564 (int) (out >> 6) & 0xf, (int) (out >> 4) & 3,
565 (int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM");
566
567 return ret;
568}
569
570int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status)
571{
572 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, HZ, status);
573}
574
575static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm,
576 u64 virt, u8 *status)
577{
ed878458 578 struct mthca_mailbox *mailbox;
1da177e4 579 struct mthca_icm_iter iter;
ed878458 580 __be64 *pages;
1da177e4
LT		 581 int lg;
582 int nent = 0;
583 int i;
584 int err = 0;
585 int ts = 0, tc = 0;
586
ed878458
RD		 587 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
588 if (IS_ERR(mailbox))
589 return PTR_ERR(mailbox);
590 memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE);
591 pages = mailbox->buf;
1da177e4
LT		 592
593 for (mthca_icm_first(icm, &iter);
594 !mthca_icm_last(&iter);
595 mthca_icm_next(&iter)) {
596 /*
597 * We have to pass pages that are aligned to their
598 * size, so find the least significant 1 in the
599 * address or size and use that as our log2 size.
600 */
601 lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1;
602 if (lg < 12) {
603 mthca_warn(dev, "Got FW area not aligned to 4K (%llx/%lx).\n",
604 (unsigned long long) mthca_icm_addr(&iter),
605 mthca_icm_size(&iter));
606 err = -EINVAL;
607 goto out;
608 }
44dd823b 609 for (i = 0; i < mthca_icm_size(&iter) / (1 << lg); ++i) {
1da177e4 610 if (virt != -1) {
ed878458 611 pages[nent * 2] = cpu_to_be64(virt);
1da177e4
LT		 612 virt += 1 << lg;
613 }
614
ed878458
RD		 615 pages[nent * 2 + 1] = cpu_to_be64((mthca_icm_addr(&iter) +
616 (i << lg)) | (lg - 12));
1da177e4
LT		 617 ts += 1 << (lg - 10);
618 ++tc;
619
44dd823b 620 if (++nent == MTHCA_MAILBOX_SIZE / 16) {
ed878458 621 err = mthca_cmd(dev, mailbox->dma, nent, 0, op,
1da177e4
LT		 622 CMD_TIME_CLASS_B, status);
623 if (err || *status)
624 goto out;
625 nent = 0;
626 }
627 }
628 }
629
630 if (nent)
ed878458 631 err = mthca_cmd(dev, mailbox->dma, nent, 0, op,
1da177e4
LT		 632 CMD_TIME_CLASS_B, status);
633
634 switch (op) {
635 case CMD_MAP_FA:
636 mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
637 break;
638 case CMD_MAP_ICM_AUX:
639 mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
640 break;
641 case CMD_MAP_ICM:
642 mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
643 tc, ts, (unsigned long long) virt - (ts << 10));
644 break;
645 }
646
647out:
ed878458 648 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 649 return err;
650}
651
652int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
653{
654 return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1, status);
655}
656
657int mthca_UNMAP_FA(struct mthca_dev *dev, u8 *status)
658{
659 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B, status);
660}
661
662int mthca_RUN_FW(struct mthca_dev *dev, u8 *status)
663{
664 return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A, status);
665}
666
667int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)
668{
ed878458 669 struct mthca_mailbox *mailbox;
1da177e4 670 u32 *outbox;
1da177e4
LT		 671 int err = 0;
672 u8 lg;
673
674#define QUERY_FW_OUT_SIZE 0x100
675#define QUERY_FW_VER_OFFSET 0x00
676#define QUERY_FW_MAX_CMD_OFFSET 0x0f
677#define QUERY_FW_ERR_START_OFFSET 0x30
678#define QUERY_FW_ERR_SIZE_OFFSET 0x38
679
680#define QUERY_FW_START_OFFSET 0x20
681#define QUERY_FW_END_OFFSET 0x28
682
683#define QUERY_FW_SIZE_OFFSET 0x00
684#define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
685#define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40
686#define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48
687
ed878458
RD		 688 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
689 if (IS_ERR(mailbox))
690 return PTR_ERR(mailbox);
691 outbox = mailbox->buf;
1da177e4 692
ed878458 693 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW,
1da177e4
LT		 694 CMD_TIME_CLASS_A, status);
695
696 if (err)
697 goto out;
698
699 MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET);
700 /*
701 * FW subminor version is at more signifant bits than minor
702 * version, so swap here.
703 */
704 dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) |
705 ((dev->fw_ver & 0xffff0000ull) >> 16) |
706 ((dev->fw_ver & 0x0000ffffull) << 16);
707
708 MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
709 dev->cmd.max_cmds = 1 << lg;
3d155f8c
RD		 710 MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET);
711 MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
1da177e4
LT		 712
713 mthca_dbg(dev, "FW version %012llx, max commands %d\n",
714 (unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
3d155f8c
RD		 715 mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n",
716 (unsigned long long) dev->catas_err.addr, dev->catas_err.size);
1da177e4 717
d10ddbf6 718 if (mthca_is_memfree(dev)) {
1da177e4
LT		 719 MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
720 MTHCA_GET(dev->fw.arbel.clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
721 MTHCA_GET(dev->fw.arbel.eq_arm_base, outbox, QUERY_FW_EQ_ARM_BASE_OFFSET);
722 MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET);
723 mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2);
724
725 /*
726 * Arbel page size is always 4 KB; round up number of
727 * system pages needed.
728 */
729 dev->fw.arbel.fw_pages =
730 (dev->fw.arbel.fw_pages + (1 << (PAGE_SHIFT - 12)) - 1) >>
731 (PAGE_SHIFT - 12);
732
733 mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n",
734 (unsigned long long) dev->fw.arbel.clr_int_base,
735 (unsigned long long) dev->fw.arbel.eq_arm_base,
736 (unsigned long long) dev->fw.arbel.eq_set_ci_base);
737 } else {
738 MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET);
739 MTHCA_GET(dev->fw.tavor.fw_end, outbox, QUERY_FW_END_OFFSET);
740
741 mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n",
742 (int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10),
743 (unsigned long long) dev->fw.tavor.fw_start,
744 (unsigned long long) dev->fw.tavor.fw_end);
745 }
746
747out:
ed878458 748 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 749 return err;
750}
751
752int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status)
753{
ed878458 754 struct mthca_mailbox *mailbox;
1da177e4
LT		 755 u8 info;
756 u32 *outbox;
1da177e4
LT		 757 int err = 0;
758
759#define ENABLE_LAM_OUT_SIZE 0x100
760#define ENABLE_LAM_START_OFFSET 0x00
761#define ENABLE_LAM_END_OFFSET 0x08
762#define ENABLE_LAM_INFO_OFFSET 0x13
763
764#define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4)
765#define ENABLE_LAM_INFO_ECC_MASK 0x3
766
ed878458
RD		 767 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
768 if (IS_ERR(mailbox))
769 return PTR_ERR(mailbox);
770 outbox = mailbox->buf;
1da177e4 771
ed878458 772 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM,
1da177e4
LT		 773 CMD_TIME_CLASS_C, status);
774
775 if (err)
776 goto out;
777
778 if (*status == MTHCA_CMD_STAT_LAM_NOT_PRE)
779 goto out;
780
781 MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET);
782 MTHCA_GET(dev->ddr_end, outbox, ENABLE_LAM_END_OFFSET);
783 MTHCA_GET(info, outbox, ENABLE_LAM_INFO_OFFSET);
784
785 if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) !=
786 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
787 mthca_info(dev, "FW reports that HCA-attached memory "
788 "is %s hidden; does not match PCI config\n",
789 (info & ENABLE_LAM_INFO_HIDDEN_FLAG) ?
790 "" : "not");
791 }
792 if (info & ENABLE_LAM_INFO_HIDDEN_FLAG)
793 mthca_dbg(dev, "HCA-attached memory is hidden.\n");
794
795 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
796 (int) ((dev->ddr_end - dev->ddr_start) >> 10),
797 (unsigned long long) dev->ddr_start,
798 (unsigned long long) dev->ddr_end);
799
800out:
ed878458 801 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 802 return err;
803}
804
805int mthca_DISABLE_LAM(struct mthca_dev *dev, u8 *status)
806{
807 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C, status);
808}
809
810int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status)
811{
ed878458 812 struct mthca_mailbox *mailbox;
1da177e4
LT		 813 u8 info;
814 u32 *outbox;
1da177e4
LT		 815 int err = 0;
816
817#define QUERY_DDR_OUT_SIZE 0x100
818#define QUERY_DDR_START_OFFSET 0x00
819#define QUERY_DDR_END_OFFSET 0x08
820#define QUERY_DDR_INFO_OFFSET 0x13
821
822#define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4)
823#define QUERY_DDR_INFO_ECC_MASK 0x3
824
ed878458
RD		 825 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
826 if (IS_ERR(mailbox))
827 return PTR_ERR(mailbox);
828 outbox = mailbox->buf;
1da177e4 829
ed878458 830 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR,
1da177e4
LT		 831 CMD_TIME_CLASS_A, status);
832
833 if (err)
834 goto out;
835
836 MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET);
837 MTHCA_GET(dev->ddr_end, outbox, QUERY_DDR_END_OFFSET);
838 MTHCA_GET(info, outbox, QUERY_DDR_INFO_OFFSET);
839
840 if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) !=
841 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
842 mthca_info(dev, "FW reports that HCA-attached memory "
843 "is %s hidden; does not match PCI config\n",
844 (info & QUERY_DDR_INFO_HIDDEN_FLAG) ?
845 "" : "not");
846 }
847 if (info & QUERY_DDR_INFO_HIDDEN_FLAG)
848 mthca_dbg(dev, "HCA-attached memory is hidden.\n");
849
850 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
851 (int) ((dev->ddr_end - dev->ddr_start) >> 10),
852 (unsigned long long) dev->ddr_start,
853 (unsigned long long) dev->ddr_end);
854
855out:
ed878458 856 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 857 return err;
858}
859
860int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
861 struct mthca_dev_lim *dev_lim, u8 *status)
862{
ed878458 863 struct mthca_mailbox *mailbox;
1da177e4 864 u32 *outbox;
1da177e4
LT		 865 u8 field;
866 u16 size;
867 int err;
868
869#define QUERY_DEV_LIM_OUT_SIZE 0x100
870#define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET 0x10
871#define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET 0x11
872#define QUERY_DEV_LIM_RSVD_QP_OFFSET 0x12
873#define QUERY_DEV_LIM_MAX_QP_OFFSET 0x13
874#define QUERY_DEV_LIM_RSVD_SRQ_OFFSET 0x14
875#define QUERY_DEV_LIM_MAX_SRQ_OFFSET 0x15
876#define QUERY_DEV_LIM_RSVD_EEC_OFFSET 0x16
877#define QUERY_DEV_LIM_MAX_EEC_OFFSET 0x17
878#define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET 0x19
879#define QUERY_DEV_LIM_RSVD_CQ_OFFSET 0x1a
880#define QUERY_DEV_LIM_MAX_CQ_OFFSET 0x1b
881#define QUERY_DEV_LIM_MAX_MPT_OFFSET 0x1d
882#define QUERY_DEV_LIM_RSVD_EQ_OFFSET 0x1e
883#define QUERY_DEV_LIM_MAX_EQ_OFFSET 0x1f
884#define QUERY_DEV_LIM_RSVD_MTT_OFFSET 0x20
885#define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET 0x21
886#define QUERY_DEV_LIM_RSVD_MRW_OFFSET 0x22
887#define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET 0x23
888#define QUERY_DEV_LIM_MAX_AV_OFFSET 0x27
889#define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET 0x29
890#define QUERY_DEV_LIM_MAX_RES_QP_OFFSET 0x2b
891#define QUERY_DEV_LIM_MAX_RDMA_OFFSET 0x2f
892#define QUERY_DEV_LIM_RSZ_SRQ_OFFSET 0x33
893#define QUERY_DEV_LIM_ACK_DELAY_OFFSET 0x35
894#define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36
895#define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37
896#define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b
897#define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f
898#define QUERY_DEV_LIM_FLAGS_OFFSET 0x44
899#define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48
900#define QUERY_DEV_LIM_UAR_SZ_OFFSET 0x49
901#define QUERY_DEV_LIM_PAGE_SZ_OFFSET 0x4b
902#define QUERY_DEV_LIM_MAX_SG_OFFSET 0x51
903#define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET 0x52
904#define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET 0x55
905#define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56
906#define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET 0x61
907#define QUERY_DEV_LIM_RSVD_MCG_OFFSET 0x62
908#define QUERY_DEV_LIM_MAX_MCG_OFFSET 0x63
909#define QUERY_DEV_LIM_RSVD_PD_OFFSET 0x64
910#define QUERY_DEV_LIM_MAX_PD_OFFSET 0x65
911#define QUERY_DEV_LIM_RSVD_RDD_OFFSET 0x66
912#define QUERY_DEV_LIM_MAX_RDD_OFFSET 0x67
913#define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET 0x80
914#define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET 0x82
915#define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET 0x84
916#define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET 0x86
917#define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET 0x88
918#define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET 0x8a
919#define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET 0x8c
920#define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET 0x8e
921#define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET 0x90
922#define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET 0x92
923#define QUERY_DEV_LIM_PBL_SZ_OFFSET 0x96
924#define QUERY_DEV_LIM_BMME_FLAGS_OFFSET 0x97
925#define QUERY_DEV_LIM_RSVD_LKEY_OFFSET 0x98
926#define QUERY_DEV_LIM_LAMR_OFFSET 0x9f
927#define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0
928
ed878458
RD		 929 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
930 if (IS_ERR(mailbox))
931 return PTR_ERR(mailbox);
932 outbox = mailbox->buf;
1da177e4 933
ed878458 934 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM,
1da177e4
LT		 935 CMD_TIME_CLASS_A, status);
936
937 if (err)
938 goto out;
939
1da177e4
LT		 940 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET);
941 dev_lim->reserved_qps = 1 << (field & 0xf);
942 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET);
943 dev_lim->max_qps = 1 << (field & 0x1f);
944 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET);
945 dev_lim->reserved_srqs = 1 << (field >> 4);
946 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET);
947 dev_lim->max_srqs = 1 << (field & 0x1f);
948 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET);
949 dev_lim->reserved_eecs = 1 << (field & 0xf);
950 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET);
951 dev_lim->max_eecs = 1 << (field & 0x1f);
952 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET);
953 dev_lim->max_cq_sz = 1 << field;
954 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET);
955 dev_lim->reserved_cqs = 1 << (field & 0xf);
956 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET);
957 dev_lim->max_cqs = 1 << (field & 0x1f);
958 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET);
959 dev_lim->max_mpts = 1 << (field & 0x3f);
960 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET);
961 dev_lim->reserved_eqs = 1 << (field & 0xf);
962 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET);
963 dev_lim->max_eqs = 1 << (field & 0x7);
964 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET);
965 dev_lim->reserved_mtts = 1 << (field >> 4);
966 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET);
967 dev_lim->max_mrw_sz = 1 << field;
968 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET);
969 dev_lim->reserved_mrws = 1 << (field & 0xf);
970 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET);
971 dev_lim->max_mtt_seg = 1 << (field & 0x3f);
972 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET);
973 dev_lim->max_requester_per_qp = 1 << (field & 0x3f);
974 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET);
975 dev_lim->max_responder_per_qp = 1 << (field & 0x3f);
976 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET);
977 dev_lim->max_rdma_global = 1 << (field & 0x3f);
978 MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET);
979 dev_lim->local_ca_ack_delay = field & 0x1f;
980 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET);
981 dev_lim->max_mtu = field >> 4;
982 dev_lim->max_port_width = field & 0xf;
983 MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET);
984 dev_lim->max_vl = field >> 4;
985 dev_lim->num_ports = field & 0xf;
986 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET);
987 dev_lim->max_gids = 1 << (field & 0xf);
988 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET);
989 dev_lim->max_pkeys = 1 << (field & 0xf);
990 MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET);
991 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET);
992 dev_lim->reserved_uars = field >> 4;
993 MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET);
994 dev_lim->uar_size = 1 << ((field & 0x3f) + 20);
995 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET);
996 dev_lim->min_page_sz = 1 << field;
997 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET);
998 dev_lim->max_sg = field;
999
1000 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET);
1001 dev_lim->max_desc_sz = size;
1002
1003 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET);
1004 dev_lim->max_qp_per_mcg = 1 << field;
1005 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET);
1006 dev_lim->reserved_mgms = field & 0xf;
1007 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET);
1008 dev_lim->max_mcgs = 1 << field;
1009 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET);
1010 dev_lim->reserved_pds = field >> 4;
1011 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET);
1012 dev_lim->max_pds = 1 << (field & 0x3f);
1013 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET);
1014 dev_lim->reserved_rdds = field >> 4;
1015 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET);
1016 dev_lim->max_rdds = 1 << (field & 0x3f);
1017
1018 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET);
1019 dev_lim->eec_entry_sz = size;
1020 MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET);
1021 dev_lim->qpc_entry_sz = size;
1022 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET);
1023 dev_lim->eeec_entry_sz = size;
1024 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET);
1025 dev_lim->eqpc_entry_sz = size;
1026 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET);
1027 dev_lim->eqc_entry_sz = size;
1028 MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET);
1029 dev_lim->cqc_entry_sz = size;
1030 MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET);
1031 dev_lim->srq_entry_sz = size;
1032 MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET);
1033 dev_lim->uar_scratch_entry_sz = size;
1034
1035 mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
1036 dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz);
ec34a922
RD		 1037 mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
1038 dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz);
1da177e4
LT		 1039 mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
1040 dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz);
1041 mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
1042 dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz);
1043 mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
1044 dev_lim->reserved_mrws, dev_lim->reserved_mtts);
1045 mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
1046 dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
1047 mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
1048 dev_lim->max_pds, dev_lim->reserved_mgms);
efaae8f7
JM		 1049 mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
1050 dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz);
1da177e4
LT		 1051
1052 mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);
1053
d10ddbf6 1054 if (mthca_is_memfree(dev)) {
a3c8ab4f
JM		 1055 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
1056 dev_lim->max_srq_sz = 1 << field;
1057 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
1058 dev_lim->max_qp_sz = 1 << field;
1da177e4
LT		 1059 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET);
1060 dev_lim->hca.arbel.resize_srq = field & 1;
8cf2daf3
RD		 1061 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET);
1062 dev_lim->max_sg = min_t(int, field, dev_lim->max_sg);
77369ed3
JM		 1063 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET);
1064 dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz);
1da177e4
LT		 1065 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET);
1066 dev_lim->mpt_entry_sz = size;
1067 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET);
1068 dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f);
1069 MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox,
1070 QUERY_DEV_LIM_BMME_FLAGS_OFFSET);
1071 MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox,
1072 QUERY_DEV_LIM_RSVD_LKEY_OFFSET);
1073 MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET);
1074 dev_lim->hca.arbel.lam_required = field & 1;
1075 MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox,
1076 QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET);
1077
1078 if (dev_lim->hca.arbel.bmme_flags & 1)
1079 mthca_dbg(dev, "Base MM extensions: yes "
1080 "(flags %d, max PBL %d, rsvd L_Key %08x)\n",
1081 dev_lim->hca.arbel.bmme_flags,
1082 dev_lim->hca.arbel.max_pbl_sz,
1083 dev_lim->hca.arbel.reserved_lkey);
1084 else
1085 mthca_dbg(dev, "Base MM extensions: no\n");
1086
1087 mthca_dbg(dev, "Max ICM size %lld MB\n",
1088 (unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20);
1089 } else {
a3c8ab4f
JM		 1090 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
1091 dev_lim->max_srq_sz = (1 << field) - 1;
1092 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
1093 dev_lim->max_qp_sz = (1 << field) - 1;
1da177e4
LT		 1094 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET);
1095 dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f);
1da177e4
LT		 1096 dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE;
1097 }
1098
1099out:
ed878458 1100 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 1101 return err;
1102}
1103
2e8b981c
MT		 1104static void get_board_id(void *vsd, char *board_id)
1105{
1106 int i;
1107
1108#define VSD_OFFSET_SIG1 0x00
1109#define VSD_OFFSET_SIG2 0xde
1110#define VSD_OFFSET_MLX_BOARD_ID 0xd0
1111#define VSD_OFFSET_TS_BOARD_ID 0x20
1112
1113#define VSD_SIGNATURE_TOPSPIN 0x5ad
1114
1115 memset(board_id, 0, MTHCA_BOARD_ID_LEN);
1116
1117 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1118 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1119 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN);
1120 } else {
1121 /*
1122 * The board ID is a string but the firmware byte
1123 * swaps each 4-byte word before passing it back to
1124 * us. Therefore we need to swab it before printing.
1125 */
1126 for (i = 0; i < 4; ++i)
1127 ((u32 *) board_id)[i] =
1128 swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
1129 }
1130}
1131
1da177e4
LT		 1132int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
1133 struct mthca_adapter *adapter, u8 *status)
1134{
ed878458 1135 struct mthca_mailbox *mailbox;
1da177e4 1136 u32 *outbox;
1da177e4
LT		 1137 int err;
1138
1139#define QUERY_ADAPTER_OUT_SIZE 0x100
1140#define QUERY_ADAPTER_VENDOR_ID_OFFSET 0x00
1141#define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04
1142#define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08
1143#define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
2e8b981c 1144#define QUERY_ADAPTER_VSD_OFFSET 0x20
1da177e4 1145
ed878458
RD		 1146 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1147 if (IS_ERR(mailbox))
1148 return PTR_ERR(mailbox);
1149 outbox = mailbox->buf;
1da177e4 1150
ed878458 1151 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER,
1da177e4
LT		 1152 CMD_TIME_CLASS_A, status);
1153
1154 if (err)
1155 goto out;
1156
ed878458
RD		 1157 MTHCA_GET(adapter->vendor_id, outbox, QUERY_ADAPTER_VENDOR_ID_OFFSET);
1158 MTHCA_GET(adapter->device_id, outbox, QUERY_ADAPTER_DEVICE_ID_OFFSET);
1da177e4 1159 MTHCA_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
ed878458 1160 MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1da177e4 1161
2e8b981c
MT		 1162 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1163 adapter->board_id);
1164
1da177e4 1165out:
ed878458 1166 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 1167 return err;
1168}
1169
1170int mthca_INIT_HCA(struct mthca_dev *dev,
1171 struct mthca_init_hca_param *param,
1172 u8 *status)
1173{
ed878458 1174 struct mthca_mailbox *mailbox;
97f52eb4 1175 __be32 *inbox;
1da177e4
LT		 1176 int err;
1177
1178#define INIT_HCA_IN_SIZE 0x200
1179#define INIT_HCA_FLAGS_OFFSET 0x014
1180#define INIT_HCA_QPC_OFFSET 0x020
1181#define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1182#define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1183#define INIT_HCA_EEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x20)
1184#define INIT_HCA_LOG_EEC_OFFSET (INIT_HCA_QPC_OFFSET + 0x27)
1185#define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1186#define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1187#define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1188#define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1189#define INIT_HCA_EQPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1190#define INIT_HCA_EEEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1191#define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1192#define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1193#define INIT_HCA_RDB_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1194#define INIT_HCA_UDAV_OFFSET 0x0b0
1195#define INIT_HCA_UDAV_LKEY_OFFSET (INIT_HCA_UDAV_OFFSET + 0x0)
1196#define INIT_HCA_UDAV_PD_OFFSET (INIT_HCA_UDAV_OFFSET + 0x4)
1197#define INIT_HCA_MCAST_OFFSET 0x0c0
1198#define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1199#define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1200#define INIT_HCA_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
1201#define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1202#define INIT_HCA_TPT_OFFSET 0x0f0
1203#define INIT_HCA_MPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1204#define INIT_HCA_MTT_SEG_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x09)
1205#define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1206#define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1207#define INIT_HCA_UAR_OFFSET 0x120
1208#define INIT_HCA_UAR_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x00)
1209#define INIT_HCA_UARC_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x09)
1210#define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1211#define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1212#define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10)
1213#define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18)
1214
ed878458
RD		 1215 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1216 if (IS_ERR(mailbox))
1217 return PTR_ERR(mailbox);
1218 inbox = mailbox->buf;
1da177e4
LT		 1219
1220 memset(inbox, 0, INIT_HCA_IN_SIZE);
1221
1222#if defined(__LITTLE_ENDIAN)
1223 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1224#elif defined(__BIG_ENDIAN)
1225 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1226#else
1227#error Host endianness not defined
1228#endif
1229 /* Check port for UD address vector: */
1230 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1231
1232 /* We leave wqe_quota, responder_exu, etc as 0 (default) */
1233
1234 /* QPC/EEC/CQC/EQC/RDB attributes */
1235
1236 MTHCA_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1237 MTHCA_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1238 MTHCA_PUT(inbox, param->eec_base, INIT_HCA_EEC_BASE_OFFSET);
1239 MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET);
1240 MTHCA_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1241 MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1242 MTHCA_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1243 MTHCA_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1244 MTHCA_PUT(inbox, param->eqpc_base, INIT_HCA_EQPC_BASE_OFFSET);
1245 MTHCA_PUT(inbox, param->eeec_base, INIT_HCA_EEEC_BASE_OFFSET);
1246 MTHCA_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1247 MTHCA_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1248 MTHCA_PUT(inbox, param->rdb_base, INIT_HCA_RDB_BASE_OFFSET);
1249
1250 /* UD AV attributes */
1251
1252 /* multicast attributes */
1253
1254 MTHCA_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
1255 MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1256 MTHCA_PUT(inbox, param->mc_hash_sz, INIT_HCA_MC_HASH_SZ_OFFSET);
1257 MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1258
1259 /* TPT attributes */
1260
1261 MTHCA_PUT(inbox, param->mpt_base, INIT_HCA_MPT_BASE_OFFSET);
d10ddbf6 1262 if (!mthca_is_memfree(dev))
1da177e4
LT		 1263 MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET);
1264 MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
1265 MTHCA_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
1266
1267 /* UAR attributes */
1268 {
1269 u8 uar_page_sz = PAGE_SHIFT - 12;
1270 MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1271 }
1272
1273 MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET);
1274
d10ddbf6 1275 if (mthca_is_memfree(dev)) {
1da177e4
LT		 1276 MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET);
1277 MTHCA_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
1278 MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET);
1279 }
1280
ed878458 1281 err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, HZ, status);
1da177e4 1282
ed878458 1283 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 1284 return err;
1285}
1286
1287int mthca_INIT_IB(struct mthca_dev *dev,
1288 struct mthca_init_ib_param *param,
1289 int port, u8 *status)
1290{
ed878458 1291 struct mthca_mailbox *mailbox;
1da177e4 1292 u32 *inbox;
1da177e4
LT		 1293 int err;
1294 u32 flags;
1295
1296#define INIT_IB_IN_SIZE 56
1297#define INIT_IB_FLAGS_OFFSET 0x00
1298#define INIT_IB_FLAG_SIG (1 << 18)
1299#define INIT_IB_FLAG_NG (1 << 17)
1300#define INIT_IB_FLAG_G0 (1 << 16)
1da177e4 1301#define INIT_IB_VL_SHIFT 4
da6561c2 1302#define INIT_IB_PORT_WIDTH_SHIFT 8
1da177e4
LT		 1303#define INIT_IB_MTU_SHIFT 12
1304#define INIT_IB_MAX_GID_OFFSET 0x06
1305#define INIT_IB_MAX_PKEY_OFFSET 0x0a
1306#define INIT_IB_GUID0_OFFSET 0x10
1307#define INIT_IB_NODE_GUID_OFFSET 0x18
1308#define INIT_IB_SI_GUID_OFFSET 0x20
1309
ed878458
RD		 1310 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1311 if (IS_ERR(mailbox))
1312 return PTR_ERR(mailbox);
1313 inbox = mailbox->buf;
1da177e4
LT		 1314
1315 memset(inbox, 0, INIT_IB_IN_SIZE);
1316
1317 flags = 0;
1da177e4
LT		 1318 flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0;
1319 flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0;
1320 flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0;
1321 flags |= param->vl_cap << INIT_IB_VL_SHIFT;
da6561c2 1322 flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT;
1da177e4
LT		 1323 flags |= param->mtu_cap << INIT_IB_MTU_SHIFT;
1324 MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET);
1325
1326 MTHCA_PUT(inbox, param->gid_cap, INIT_IB_MAX_GID_OFFSET);
1327 MTHCA_PUT(inbox, param->pkey_cap, INIT_IB_MAX_PKEY_OFFSET);
1328 MTHCA_PUT(inbox, param->guid0, INIT_IB_GUID0_OFFSET);
1329 MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET);
1330 MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET);
1331
ed878458 1332 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB,
1da177e4
LT		 1333 CMD_TIME_CLASS_A, status);
1334
ed878458 1335 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 1336 return err;
1337}
1338
1339int mthca_CLOSE_IB(struct mthca_dev *dev, int port, u8 *status)
1340{
1341 return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, HZ, status);
1342}
1343
1344int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status)
1345{
1346 return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, HZ, status);
1347}
1348
1349int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param,
1350 int port, u8 *status)
1351{
ed878458 1352 struct mthca_mailbox *mailbox;
1da177e4 1353 u32 *inbox;
1da177e4
LT		 1354 int err;
1355 u32 flags = 0;
1356
1357#define SET_IB_IN_SIZE 0x40
1358#define SET_IB_FLAGS_OFFSET 0x00
1359#define SET_IB_FLAG_SIG (1 << 18)
1360#define SET_IB_FLAG_RQK (1 << 0)
1361#define SET_IB_CAP_MASK_OFFSET 0x04
1362#define SET_IB_SI_GUID_OFFSET 0x08
1363
ed878458
RD		 1364 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1365 if (IS_ERR(mailbox))
1366 return PTR_ERR(mailbox);
1367 inbox = mailbox->buf;
1da177e4
LT		 1368
1369 memset(inbox, 0, SET_IB_IN_SIZE);
1370
1371 flags |= param->set_si_guid ? SET_IB_FLAG_SIG : 0;
1372 flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0;
1373 MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET);
1374
1375 MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET);
1376 MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET);
1377
ed878458 1378 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB,
1da177e4
LT		 1379 CMD_TIME_CLASS_B, status);
1380
ed878458 1381 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 1382 return err;
1383}
1384
1385int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt, u8 *status)
1386{
1387 return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt, status);
1388}
1389
1390int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt, u8 *status)
1391{
ed878458 1392 struct mthca_mailbox *mailbox;
97f52eb4 1393 __be64 *inbox;
1da177e4
LT		 1394 int err;
1395
ed878458
RD		 1396 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1397 if (IS_ERR(mailbox))
1398 return PTR_ERR(mailbox);
1399 inbox = mailbox->buf;
1da177e4
LT		 1400
1401 inbox[0] = cpu_to_be64(virt);
1402 inbox[1] = cpu_to_be64(dma_addr);
1403
ed878458
RD		 1404 err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM,
1405 CMD_TIME_CLASS_B, status);
1da177e4 1406
ed878458 1407 mthca_free_mailbox(dev, mailbox);
1da177e4
LT		 1408
1409 if (!err)
6bd6228e
RD		 1410 mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n",
1411 (unsigned long long) dma_addr, (unsigned long long) virt);
1da177e4
LT		 1412
1413 return err;
1414}
1415
1416int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count, u8 *status)
1417{
1418 mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n",
1419 page_count, (unsigned long long) virt);
1420
1421 return mthca_cmd(dev, virt, page_count, 0, CMD_UNMAP_ICM, CMD_TIME_CLASS_B, status);
1422}
1423
1424int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
1425{
1426 return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1, status);
1427}
1428
1429int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev, u8 *status)
1430{
1431 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B, status);
1432}
1433
1434int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages,
1435 u8 *status)
1436{
1437 int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, 0, CMD_SET_ICM_SIZE,
1438 CMD_TIME_CLASS_A, status);
1439
1440 if (ret || status)
1441 return ret;
1442
1443 /*
1444 * Arbel page size is always 4 KB; round up number of system
1445 * pages needed.
1446 */
1447 *aux_pages = (*aux_pages + (1 << (PAGE_SHIFT - 12)) - 1) >> (PAGE_SHIFT - 12);
1448
1449 return 0;
1450}
1451
ed878458 1452int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1453 int mpt_index, u8 *status)
1454{
ed878458
RD		 1455 return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT,
1456 CMD_TIME_CLASS_B, status);
1da177e4
LT		 1457}
1458
ed878458 1459int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1460 int mpt_index, u8 *status)
1461{
ed878458
RD		 1462 return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
1463 !mailbox, CMD_HW2SW_MPT,
1464 CMD_TIME_CLASS_B, status);
1da177e4
LT		 1465}
1466
ed878458 1467int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1468 int num_mtt, u8 *status)
1469{
ed878458
RD		 1470 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
1471 CMD_TIME_CLASS_B, status);
1da177e4
LT		 1472}
1473
b8ca06f6
MT		 1474int mthca_SYNC_TPT(struct mthca_dev *dev, u8 *status)
1475{
1476 return mthca_cmd(dev, 0, 0, 0, CMD_SYNC_TPT, CMD_TIME_CLASS_B, status);
1477}
1478
1da177e4
LT		 1479int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
1480 int eq_num, u8 *status)
1481{
1482 mthca_dbg(dev, "%s mask %016llx for eqn %d\n",
1483 unmap ? "Clearing" : "Setting",
1484 (unsigned long long) event_mask, eq_num);
1485 return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num,
1486 0, CMD_MAP_EQ, CMD_TIME_CLASS_B, status);
1487}
1488
ed878458 1489int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1490 int eq_num, u8 *status)
1491{
ed878458
RD		 1492 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
1493 CMD_TIME_CLASS_A, status);
1da177e4
LT		 1494}
1495
ed878458 1496int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1497 int eq_num, u8 *status)
1498{
ed878458
RD		 1499 return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0,
1500 CMD_HW2SW_EQ,
1501 CMD_TIME_CLASS_A, status);
1da177e4
LT		 1502}
1503
ed878458 1504int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1505 int cq_num, u8 *status)
1506{
ed878458 1507 return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ,
1da177e4 1508 CMD_TIME_CLASS_A, status);
1da177e4
LT		 1509}
1510
ed878458 1511int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1da177e4
LT		 1512 int cq_num, u8 *status)
1513{
ed878458
RD		 1514 return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0,
1515 CMD_HW2SW_CQ,
1516 CMD_TIME_CLASS_A, status);
1da177e4
LT		 1517}
1518
ec34a922
RD		 1519int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1520 int srq_num, u8 *status)
1521{
1522 return mthca_cmd(dev, mailbox->dma, srq_num, 0, CMD_SW2HW_SRQ,
1523 CMD_TIME_CLASS_A, status);
1524}
1525
1526int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1527 int srq_num, u8 *status)
1528{
1529 return mthca_cmd_box(dev, 0, mailbox->dma, srq_num, 0,
1530 CMD_HW2SW_SRQ,
1531 CMD_TIME_CLASS_A, status);
1532}
1533
1534int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit, u8 *status)
1535{
1536 return mthca_cmd(dev, limit, srq_num, 0, CMD_ARM_SRQ,
1537 CMD_TIME_CLASS_B, status);
1538}
1539
1da177e4 1540int mthca_MODIFY_QP(struct mthca_dev *dev, int trans, u32 num,
ed878458 1541 int is_ee, struct mthca_mailbox *mailbox, u32 optmask,
1da177e4
LT		 1542 u8 *status)
1543{
1544 static const u16 op[] = {
1545 [MTHCA_TRANS_RST2INIT] = CMD_RST2INIT_QPEE,
1546 [MTHCA_TRANS_INIT2INIT] = CMD_INIT2INIT_QPEE,
1547 [MTHCA_TRANS_INIT2RTR] = CMD_INIT2RTR_QPEE,
1548 [MTHCA_TRANS_RTR2RTS] = CMD_RTR2RTS_QPEE,
1549 [MTHCA_TRANS_RTS2RTS] = CMD_RTS2RTS_QPEE,
1550 [MTHCA_TRANS_SQERR2RTS] = CMD_SQERR2RTS_QPEE,
1551 [MTHCA_TRANS_ANY2ERR] = CMD_2ERR_QPEE,
1552 [MTHCA_TRANS_RTS2SQD] = CMD_RTS2SQD_QPEE,
1553 [MTHCA_TRANS_SQD2SQD] = CMD_SQD2SQD_QPEE,
1554 [MTHCA_TRANS_SQD2RTS] = CMD_SQD2RTS_QPEE,
1555 [MTHCA_TRANS_ANY2RST] = CMD_ERR2RST_QPEE
1556 };
1557 u8 op_mod = 0;
ed878458 1558 int my_mailbox = 0;
1da177e4
LT		 1559 int err;
1560
1561 if (trans < 0 || trans >= ARRAY_SIZE(op))
1562 return -EINVAL;
1563
1564 if (trans == MTHCA_TRANS_ANY2RST) {
1da177e4
LT		 1565 op_mod = 3; /* don't write outbox, any->reset */
1566
1567 /* For debugging */
ed878458
RD		 1568 if (!mailbox) {
1569 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1570 if (!IS_ERR(mailbox)) {
1571 my_mailbox = 1;
1572 op_mod = 2; /* write outbox, any->reset */
1573 } else
1574 mailbox = NULL;
1575 }
1da177e4 1576 } else {
1da177e4
LT		 1577 if (0) {
1578 int i;
1579 mthca_dbg(dev, "Dumping QP context:\n");
ed878458 1580 printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf));
1da177e4
LT		 1581 for (i = 0; i < 0x100 / 4; ++i) {
1582 if (i % 8 == 0)
1583 printk(" [%02x] ", i * 4);
ed878458 1584 printk(" %08x",
97f52eb4 1585 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2]));
1da177e4
LT		 1586 if ((i + 1) % 8 == 0)
1587 printk("\n");
1588 }
1589 }
1590 }
1591
1592 if (trans == MTHCA_TRANS_ANY2RST) {
ed878458
RD		 1593 err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0,
1594 (!!is_ee << 24) | num, op_mod,
1595 op[trans], CMD_TIME_CLASS_C, status);
1da177e4 1596
ed878458 1597 if (0 && mailbox) {
1da177e4
LT		 1598 int i;
1599 mthca_dbg(dev, "Dumping QP context:\n");
ed878458 1600 printk(" %08x\n", be32_to_cpup(mailbox->buf));
1da177e4
LT		 1601 for (i = 0; i < 0x100 / 4; ++i) {
1602 if (i % 8 == 0)
1603 printk("[%02x] ", i * 4);
ed878458 1604 printk(" %08x",
97f52eb4 1605 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2]));
1da177e4
LT		 1606 if ((i + 1) % 8 == 0)
1607 printk("\n");
1608 }
1609 }
1610
1611 } else
ed878458 1612 err = mthca_cmd(dev, mailbox->dma, (!!is_ee << 24) | num,
1da177e4
LT		 1613 op_mod, op[trans], CMD_TIME_CLASS_C, status);
1614
ed878458
RD		 1615 if (my_mailbox)
1616 mthca_free_mailbox(dev, mailbox);
1617
1da177e4
LT		 1618 return err;
1619}
1620
1621int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee,
ed878458 1622 struct mthca_mailbox *mailbox, u8 *status)
1da177e4 1623{
ed878458
RD		 1624 return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0,
1625 CMD_QUERY_QPEE, CMD_TIME_CLASS_A, status);
1da177e4
LT		 1626}
1627
1628int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn,
1629 u8 *status)
1630{
1631 u8 op_mod;
1632
1633 switch (type) {
1634 case IB_QPT_SMI:
1635 op_mod = 0;
1636 break;
1637 case IB_QPT_GSI:
1638 op_mod = 1;
1639 break;
1640 case IB_QPT_RAW_IPV6:
1641 op_mod = 2;
1642 break;
1643 case IB_QPT_RAW_ETY:
1644 op_mod = 3;
1645 break;
1646 default:
1647 return -EINVAL;
1648 }
1649
1650 return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP,
1651 CMD_TIME_CLASS_B, status);
1652}
1653
1654int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
ed878458 1655 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
1da177e4
LT		 1656 void *in_mad, void *response_mad, u8 *status)
1657{
ed878458
RD		 1658 struct mthca_mailbox *inmailbox, *outmailbox;
1659 void *inbox;
1da177e4
LT		 1660 int err;
1661 u32 in_modifier = port;
1662 u8 op_modifier = 0;
1663
1664#define MAD_IFC_BOX_SIZE 0x400
1665#define MAD_IFC_MY_QPN_OFFSET 0x100
1666#define MAD_IFC_RQPN_OFFSET 0x104
1667#define MAD_IFC_SL_OFFSET 0x108
1668#define MAD_IFC_G_PATH_OFFSET 0x109
1669#define MAD_IFC_RLID_OFFSET 0x10a
1670#define MAD_IFC_PKEY_OFFSET 0x10e
1671#define MAD_IFC_GRH_OFFSET 0x140
1672
ed878458
RD		 1673 inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1674 if (IS_ERR(inmailbox))
1675 return PTR_ERR(inmailbox);
1676 inbox = inmailbox->buf;
1677
1678 outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
1679 if (IS_ERR(outmailbox)) {
1680 mthca_free_mailbox(dev, inmailbox);
1681 return PTR_ERR(outmailbox);
1682 }
1da177e4 1683
ed878458 1684 memcpy(inbox, in_mad, 256);
1da177e4
LT		 1685
1686 /*
1687 * Key check traps can't be generated unless we have in_wc to
1688 * tell us where to send the trap.
1689 */
1690 if (ignore_mkey || !in_wc)
1691 op_modifier |= 0x1;
1692 if (ignore_bkey || !in_wc)
1693 op_modifier |= 0x2;
1694
1695 if (in_wc) {
1696 u8 val;
1697
ed878458 1698 memset(inbox + 256, 0, 256);
1da177e4 1699
ed878458
RD		 1700 MTHCA_PUT(inbox, in_wc->qp_num, MAD_IFC_MY_QPN_OFFSET);
1701 MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET);
1da177e4
LT		 1702
1703 val = in_wc->sl << 4;
ed878458 1704 MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET);
1da177e4
LT		 1705
1706 val = in_wc->dlid_path_bits |
1707 (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0);
ed878458 1708 MTHCA_PUT(inbox, val, MAD_IFC_GRH_OFFSET);
1da177e4 1709
ed878458
RD		 1710 MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET);
1711 MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET);
1da177e4
LT		 1712
1713 if (in_grh)
ed878458 1714 memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40);
1da177e4
LT		 1715
1716 op_modifier |= 0x10;
1717
1718 in_modifier |= in_wc->slid << 16;
1719 }
1720
ed878458
RD		 1721 err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma,
1722 in_modifier, op_modifier,
1da177e4
LT		 1723 CMD_MAD_IFC, CMD_TIME_CLASS_C, status);
1724
1725 if (!err && !*status)
ed878458 1726 memcpy(response_mad, outmailbox->buf, 256);
1da177e4 1727
ed878458
RD		 1728 mthca_free_mailbox(dev, inmailbox);
1729 mthca_free_mailbox(dev, outmailbox);
1da177e4
LT		 1730 return err;
1731}
1732
ed878458
RD		 1733int mthca_READ_MGM(struct mthca_dev *dev, int index,
1734 struct mthca_mailbox *mailbox, u8 *status)
1da177e4 1735{
ed878458
RD		 1736 return mthca_cmd_box(dev, 0, mailbox->dma, index, 0,
1737 CMD_READ_MGM, CMD_TIME_CLASS_A, status);
1da177e4
LT		 1738}
1739
ed878458
RD		 1740int mthca_WRITE_MGM(struct mthca_dev *dev, int index,
1741 struct mthca_mailbox *mailbox, u8 *status)
1da177e4 1742{
ed878458
RD		 1743 return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM,
1744 CMD_TIME_CLASS_A, status);
1da177e4
LT		 1745}
1746
ed878458
RD		 1747int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
1748 u16 *hash, u8 *status)
1da177e4 1749{
1da177e4
LT		 1750 u64 imm;
1751 int err;
1752
ed878458 1753 err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH,
1da177e4 1754 CMD_TIME_CLASS_A, status);
1da177e4 1755
ed878458 1756 *hash = imm;
1da177e4
LT		 1757 return err;
1758}
1759
1760int mthca_NOP(struct mthca_dev *dev, u8 *status)
1761{
1762 return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100), status);
1763}
Linux 6.x block layer and io_uring tree(s)