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[PATCH] IB/mthca: add support for new MT25204 HCA
[linux-2.6/linux-loongson.git] / drivers / infiniband / hw / mthca / mthca_main.c
bloba1fa326dceb6389e98d904932a15155a6c9a03c1
1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
33 */
34
35 #include <linux/config.h>
36 #include <linux/version.h>
37 #include <linux/module.h>
38 #include <linux/init.h>
39 #include <linux/errno.h>
40 #include <linux/pci.h>
41 #include <linux/interrupt.h>
42
43 #include "mthca_dev.h"
44 #include "mthca_config_reg.h"
45 #include "mthca_cmd.h"
46 #include "mthca_profile.h"
47 #include "mthca_memfree.h"
48
49 MODULE_AUTHOR("Roland Dreier");
50 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
51 MODULE_LICENSE("Dual BSD/GPL");
52 MODULE_VERSION(DRV_VERSION);
53
54 #ifdef CONFIG_PCI_MSI
55
56 static int msi_x = 0;
57 module_param(msi_x, int, 0444);
58 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
59
60 static int msi = 0;
61 module_param(msi, int, 0444);
62 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
63
64 #else /* CONFIG_PCI_MSI */
65
66 #define msi_x (0)
67 #define msi (0)
68
69 #endif /* CONFIG_PCI_MSI */
70
71 static const char mthca_version[] __devinitdata =
72 "ib_mthca: Mellanox InfiniBand HCA driver v"
73 DRV_VERSION " (" DRV_RELDATE ")\n";
74
75 static struct mthca_profile default_profile = {
76 .num_qp = 1 << 16,
77 .rdb_per_qp = 4,
78 .num_cq = 1 << 16,
79 .num_mcg = 1 << 13,
80 .num_mpt = 1 << 17,
81 .num_mtt = 1 << 20,
82 .num_udav = 1 << 15, /* Tavor only */
83 .fmr_reserved_mtts = 1 << 18, /* Tavor only */
84 .uarc_size = 1 << 18, /* Arbel only */
85 };
86
87 static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
88 {
89 int cap;
90 u16 val;
91
92 /* First try to max out Read Byte Count */
93 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
94 if (cap) {
95 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
96 mthca_err(mdev, "Couldn't read PCI-X command register, "
97 "aborting.\n");
98 return -ENODEV;
99 }
100 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
101 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
102 mthca_err(mdev, "Couldn't write PCI-X command register, "
103 "aborting.\n");
104 return -ENODEV;
105 }
106 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
107 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
108
109 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
110 if (cap) {
111 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
112 mthca_err(mdev, "Couldn't read PCI Express device control "
113 "register, aborting.\n");
114 return -ENODEV;
115 }
116 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
117 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
118 mthca_err(mdev, "Couldn't write PCI Express device control "
119 "register, aborting.\n");
120 return -ENODEV;
121 }
122 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
123 mthca_info(mdev, "No PCI Express capability, "
124 "not setting Max Read Request Size.\n");
125
126 return 0;
127 }
128
129 static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
130 {
131 int err;
132 u8 status;
133
134 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
135 if (err) {
136 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
137 return err;
138 }
139 if (status) {
140 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
141 "aborting.\n", status);
142 return -EINVAL;
143 }
144 if (dev_lim->min_page_sz > PAGE_SIZE) {
145 mthca_err(mdev, "HCA minimum page size of %d bigger than "
146 "kernel PAGE_SIZE of %ld, aborting.\n",
147 dev_lim->min_page_sz, PAGE_SIZE);
148 return -ENODEV;
149 }
150 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
151 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
152 "aborting.\n",
153 dev_lim->num_ports, MTHCA_MAX_PORTS);
154 return -ENODEV;
155 }
156
157 mdev->limits.num_ports = dev_lim->num_ports;
158 mdev->limits.vl_cap = dev_lim->max_vl;
159 mdev->limits.mtu_cap = dev_lim->max_mtu;
160 mdev->limits.gid_table_len = dev_lim->max_gids;
161 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
162 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
163 mdev->limits.max_sg = dev_lim->max_sg;
164 mdev->limits.reserved_qps = dev_lim->reserved_qps;
165 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
166 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
167 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
168 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
169 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
170 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
171 mdev->limits.reserved_uars = dev_lim->reserved_uars;
172 mdev->limits.reserved_pds = dev_lim->reserved_pds;
173
174 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
175 May be doable since hardware supports it for SRQ.
176
177 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
178
179 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
180 supported by driver. */
181 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
182 IB_DEVICE_PORT_ACTIVE_EVENT |
183 IB_DEVICE_SYS_IMAGE_GUID |
184 IB_DEVICE_RC_RNR_NAK_GEN;
185
186 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
187 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
188
189 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
190 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
191
192 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
193 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
194
195 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
196 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
197
198 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
199 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
200
201 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
202 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
203
204 return 0;
205 }
206
207 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
208 {
209 u8 status;
210 int err;
211 struct mthca_dev_lim dev_lim;
212 struct mthca_profile profile;
213 struct mthca_init_hca_param init_hca;
214 struct mthca_adapter adapter;
215
216 err = mthca_SYS_EN(mdev, &status);
217 if (err) {
218 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
219 return err;
220 }
221 if (status) {
222 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
223 "aborting.\n", status);
224 return -EINVAL;
225 }
226
227 err = mthca_QUERY_FW(mdev, &status);
228 if (err) {
229 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
230 goto err_disable;
231 }
232 if (status) {
233 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
234 "aborting.\n", status);
235 err = -EINVAL;
236 goto err_disable;
237 }
238 err = mthca_QUERY_DDR(mdev, &status);
239 if (err) {
240 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
241 goto err_disable;
242 }
243 if (status) {
244 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
245 "aborting.\n", status);
246 err = -EINVAL;
247 goto err_disable;
248 }
249
250 err = mthca_dev_lim(mdev, &dev_lim);
251
252 profile = default_profile;
253 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
254 profile.uarc_size = 0;
255
256 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
257 if (err < 0)
258 goto err_disable;
259
260 err = mthca_INIT_HCA(mdev, &init_hca, &status);
261 if (err) {
262 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
263 goto err_disable;
264 }
265 if (status) {
266 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
267 "aborting.\n", status);
268 err = -EINVAL;
269 goto err_disable;
270 }
271
272 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
273 if (err) {
274 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
275 goto err_close;
276 }
277 if (status) {
278 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
279 "aborting.\n", status);
280 err = -EINVAL;
281 goto err_close;
282 }
283
284 mdev->eq_table.inta_pin = adapter.inta_pin;
285 mdev->rev_id = adapter.revision_id;
286
287 return 0;
288
289 err_close:
290 mthca_CLOSE_HCA(mdev, 0, &status);
291
292 err_disable:
293 mthca_SYS_DIS(mdev, &status);
294
295 return err;
296 }
297
298 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
299 {
300 u8 status;
301 int err;
302
303 /* FIXME: use HCA-attached memory for FW if present */
304
305 mdev->fw.arbel.fw_icm =
306 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
307 GFP_HIGHUSER | __GFP_NOWARN);
308 if (!mdev->fw.arbel.fw_icm) {
309 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
310 return -ENOMEM;
311 }
312
313 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
314 if (err) {
315 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
316 goto err_free;
317 }
318 if (status) {
319 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
320 err = -EINVAL;
321 goto err_free;
322 }
323 err = mthca_RUN_FW(mdev, &status);
324 if (err) {
325 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
326 goto err_unmap_fa;
327 }
328 if (status) {
329 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
330 err = -EINVAL;
331 goto err_unmap_fa;
332 }
333
334 return 0;
335
336 err_unmap_fa:
337 mthca_UNMAP_FA(mdev, &status);
338
339 err_free:
340 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
341 return err;
342 }
343
344 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
345 struct mthca_dev_lim *dev_lim,
346 struct mthca_init_hca_param *init_hca,
347 u64 icm_size)
348 {
349 u64 aux_pages;
350 u8 status;
351 int err;
352
353 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
354 if (err) {
355 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
356 return err;
357 }
358 if (status) {
359 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
360 "aborting.\n", status);
361 return -EINVAL;
362 }
363
364 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
365 (unsigned long long) icm_size >> 10,
366 (unsigned long long) aux_pages << 2);
367
368 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
369 GFP_HIGHUSER | __GFP_NOWARN);
370 if (!mdev->fw.arbel.aux_icm) {
371 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
372 return -ENOMEM;
373 }
374
375 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
376 if (err) {
377 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
378 goto err_free_aux;
379 }
380 if (status) {
381 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
382 err = -EINVAL;
383 goto err_free_aux;
384 }
385
386 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
387 if (err) {
388 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
389 goto err_unmap_aux;
390 }
391
392 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
393 MTHCA_MTT_SEG_SIZE,
394 mdev->limits.num_mtt_segs,
395 mdev->limits.reserved_mtts, 1);
396 if (!mdev->mr_table.mtt_table) {
397 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
398 err = -ENOMEM;
399 goto err_unmap_eq;
400 }
401
402 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
403 dev_lim->mpt_entry_sz,
404 mdev->limits.num_mpts,
405 mdev->limits.reserved_mrws, 1);
406 if (!mdev->mr_table.mpt_table) {
407 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
408 err = -ENOMEM;
409 goto err_unmap_mtt;
410 }
411
412 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
413 dev_lim->qpc_entry_sz,
414 mdev->limits.num_qps,
415 mdev->limits.reserved_qps, 0);
416 if (!mdev->qp_table.qp_table) {
417 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
418 err = -ENOMEM;
419 goto err_unmap_mpt;
420 }
421
422 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
423 dev_lim->eqpc_entry_sz,
424 mdev->limits.num_qps,
425 mdev->limits.reserved_qps, 0);
426 if (!mdev->qp_table.eqp_table) {
427 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
428 err = -ENOMEM;
429 goto err_unmap_qp;
430 }
431
432 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
433 MTHCA_RDB_ENTRY_SIZE,
434 mdev->limits.num_qps <<
435 mdev->qp_table.rdb_shift,
436 0, 0);
437 if (!mdev->qp_table.rdb_table) {
438 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
439 err = -ENOMEM;
440 goto err_unmap_rdb;
441 }
442
443 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
444 dev_lim->cqc_entry_sz,
445 mdev->limits.num_cqs,
446 mdev->limits.reserved_cqs, 0);
447 if (!mdev->cq_table.table) {
448 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
449 err = -ENOMEM;
450 goto err_unmap_rdb;
451 }
452
453 /*
454 * It's not strictly required, but for simplicity just map the
455 * whole multicast group table now. The table isn't very big
456 * and it's a lot easier than trying to track ref counts.
457 */
458 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
459 MTHCA_MGM_ENTRY_SIZE,
460 mdev->limits.num_mgms +
461 mdev->limits.num_amgms,
462 mdev->limits.num_mgms +
463 mdev->limits.num_amgms,
464 0);
465 if (!mdev->mcg_table.table) {
466 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
467 err = -ENOMEM;
468 goto err_unmap_cq;
469 }
470
471 return 0;
472
473 err_unmap_cq:
474 mthca_free_icm_table(mdev, mdev->cq_table.table);
475
476 err_unmap_rdb:
477 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
478
479 err_unmap_eqp:
480 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
481
482 err_unmap_qp:
483 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
484
485 err_unmap_mpt:
486 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
487
488 err_unmap_mtt:
489 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
490
491 err_unmap_eq:
492 mthca_unmap_eq_icm(mdev);
493
494 err_unmap_aux:
495 mthca_UNMAP_ICM_AUX(mdev, &status);
496
497 err_free_aux:
498 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
499
500 return err;
501 }
502
503 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
504 {
505 struct mthca_dev_lim dev_lim;
506 struct mthca_profile profile;
507 struct mthca_init_hca_param init_hca;
508 struct mthca_adapter adapter;
509 u64 icm_size;
510 u8 status;
511 int err;
512
513 err = mthca_QUERY_FW(mdev, &status);
514 if (err) {
515 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
516 return err;
517 }
518 if (status) {
519 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
520 "aborting.\n", status);
521 return -EINVAL;
522 }
523
524 err = mthca_ENABLE_LAM(mdev, &status);
525 if (err) {
526 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
527 return err;
528 }
529 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
530 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
531 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
532 } else if (status) {
533 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
534 "aborting.\n", status);
535 return -EINVAL;
536 }
537
538 err = mthca_load_fw(mdev);
539 if (err) {
540 mthca_err(mdev, "Failed to start FW, aborting.\n");
541 goto err_disable;
542 }
543
544 err = mthca_dev_lim(mdev, &dev_lim);
545 if (err) {
546 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
547 goto err_stop_fw;
548 }
549
550 profile = default_profile;
551 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
552 profile.num_udav = 0;
553
554 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
555 if ((int) icm_size < 0) {
556 err = icm_size;
557 goto err_stop_fw;
558 }
559
560 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
561 if (err)
562 goto err_stop_fw;
563
564 err = mthca_INIT_HCA(mdev, &init_hca, &status);
565 if (err) {
566 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
567 goto err_free_icm;
568 }
569 if (status) {
570 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
571 "aborting.\n", status);
572 err = -EINVAL;
573 goto err_free_icm;
574 }
575
576 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
577 if (err) {
578 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
579 goto err_free_icm;
580 }
581 if (status) {
582 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
583 "aborting.\n", status);
584 err = -EINVAL;
585 goto err_free_icm;
586 }
587
588 mdev->eq_table.inta_pin = adapter.inta_pin;
589 mdev->rev_id = adapter.revision_id;
590
591 return 0;
592
593 err_free_icm:
594 mthca_free_icm_table(mdev, mdev->cq_table.table);
595 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
596 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
597 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
598 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
599 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
600 mthca_unmap_eq_icm(mdev);
601
602 mthca_UNMAP_ICM_AUX(mdev, &status);
603 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
604
605 err_stop_fw:
606 mthca_UNMAP_FA(mdev, &status);
607 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
608
609 err_disable:
610 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
611 mthca_DISABLE_LAM(mdev, &status);
612
613 return err;
614 }
615
616 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
617 {
618 if (mthca_is_memfree(mdev))
619 return mthca_init_arbel(mdev);
620 else
621 return mthca_init_tavor(mdev);
622 }
623
624 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
625 {
626 int err;
627 u8 status;
628
629 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
630
631 err = mthca_init_uar_table(dev);
632 if (err) {
633 mthca_err(dev, "Failed to initialize "
634 "user access region table, aborting.\n");
635 return err;
636 }
637
638 err = mthca_uar_alloc(dev, &dev->driver_uar);
639 if (err) {
640 mthca_err(dev, "Failed to allocate driver access region, "
641 "aborting.\n");
642 goto err_uar_table_free;
643 }
644
645 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
646 if (!dev->kar) {
647 mthca_err(dev, "Couldn't map kernel access region, "
648 "aborting.\n");
649 err = -ENOMEM;
650 goto err_uar_free;
651 }
652
653 err = mthca_init_pd_table(dev);
654 if (err) {
655 mthca_err(dev, "Failed to initialize "
656 "protection domain table, aborting.\n");
657 goto err_kar_unmap;
658 }
659
660 err = mthca_init_mr_table(dev);
661 if (err) {
662 mthca_err(dev, "Failed to initialize "
663 "memory region table, aborting.\n");
664 goto err_pd_table_free;
665 }
666
667 err = mthca_pd_alloc(dev, &dev->driver_pd);
668 if (err) {
669 mthca_err(dev, "Failed to create driver PD, "
670 "aborting.\n");
671 goto err_mr_table_free;
672 }
673
674 err = mthca_init_eq_table(dev);
675 if (err) {
676 mthca_err(dev, "Failed to initialize "
677 "event queue table, aborting.\n");
678 goto err_pd_free;
679 }
680
681 err = mthca_cmd_use_events(dev);
682 if (err) {
683 mthca_err(dev, "Failed to switch to event-driven "
684 "firmware commands, aborting.\n");
685 goto err_eq_table_free;
686 }
687
688 err = mthca_NOP(dev, &status);
689 if (err || status) {
690 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
691 dev->mthca_flags & MTHCA_FLAG_MSI_X ?
692 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
693 dev->pdev->irq);
694 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
695 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
696 else
697 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
698
699 goto err_cmd_poll;
700 }
701
702 mthca_dbg(dev, "NOP command IRQ test passed\n");
703
704 err = mthca_init_cq_table(dev);
705 if (err) {
706 mthca_err(dev, "Failed to initialize "
707 "completion queue table, aborting.\n");
708 goto err_cmd_poll;
709 }
710
711 err = mthca_init_qp_table(dev);
712 if (err) {
713 mthca_err(dev, "Failed to initialize "
714 "queue pair table, aborting.\n");
715 goto err_cq_table_free;
716 }
717
718 err = mthca_init_av_table(dev);
719 if (err) {
720 mthca_err(dev, "Failed to initialize "
721 "address vector table, aborting.\n");
722 goto err_qp_table_free;
723 }
724
725 err = mthca_init_mcg_table(dev);
726 if (err) {
727 mthca_err(dev, "Failed to initialize "
728 "multicast group table, aborting.\n");
729 goto err_av_table_free;
730 }
731
732 return 0;
733
734 err_av_table_free:
735 mthca_cleanup_av_table(dev);
736
737 err_qp_table_free:
738 mthca_cleanup_qp_table(dev);
739
740 err_cq_table_free:
741 mthca_cleanup_cq_table(dev);
742
743 err_cmd_poll:
744 mthca_cmd_use_polling(dev);
745
746 err_eq_table_free:
747 mthca_cleanup_eq_table(dev);
748
749 err_pd_free:
750 mthca_pd_free(dev, &dev->driver_pd);
751
752 err_mr_table_free:
753 mthca_cleanup_mr_table(dev);
754
755 err_pd_table_free:
756 mthca_cleanup_pd_table(dev);
757
758 err_kar_unmap:
759 iounmap(dev->kar);
760
761 err_uar_free:
762 mthca_uar_free(dev, &dev->driver_uar);
763
764 err_uar_table_free:
765 mthca_cleanup_uar_table(dev);
766 return err;
767 }
768
769 static int __devinit mthca_request_regions(struct pci_dev *pdev,
770 int ddr_hidden)
771 {
772 int err;
773
774 /*
775 * We can't just use pci_request_regions() because the MSI-X
776 * table is right in the middle of the first BAR. If we did
777 * pci_request_region and grab all of the first BAR, then
778 * setting up MSI-X would fail, since the PCI core wants to do
779 * request_mem_region on the MSI-X vector table.
780 *
781 * So just request what we need right now, and request any
782 * other regions we need when setting up EQs.
783 */
784 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
785 MTHCA_HCR_SIZE, DRV_NAME))
786 return -EBUSY;
787
788 err = pci_request_region(pdev, 2, DRV_NAME);
789 if (err)
790 goto err_bar2_failed;
791
792 if (!ddr_hidden) {
793 err = pci_request_region(pdev, 4, DRV_NAME);
794 if (err)
795 goto err_bar4_failed;
796 }
797
798 return 0;
799
800 err_bar4_failed:
801 pci_release_region(pdev, 2);
802
803 err_bar2_failed:
804 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
805 MTHCA_HCR_SIZE);
806
807 return err;
808 }
809
810 static void mthca_release_regions(struct pci_dev *pdev,
811 int ddr_hidden)
812 {
813 if (!ddr_hidden)
814 pci_release_region(pdev, 4);
815
816 pci_release_region(pdev, 2);
817
818 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
819 MTHCA_HCR_SIZE);
820 }
821
822 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
823 {
824 struct msix_entry entries[3];
825 int err;
826
827 entries[0].entry = 0;
828 entries[1].entry = 1;
829 entries[2].entry = 2;
830
831 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
832 if (err) {
833 if (err > 0)
834 mthca_info(mdev, "Only %d MSI-X vectors available, "
835 "not using MSI-X\n", err);
836 return err;
837 }
838
839 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
840 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
841 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
842
843 return 0;
844 }
845
846 static void mthca_close_hca(struct mthca_dev *mdev)
847 {
848 u8 status;
849
850 mthca_CLOSE_HCA(mdev, 0, &status);
851
852 if (mthca_is_memfree(mdev)) {
853 mthca_free_icm_table(mdev, mdev->cq_table.table);
854 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
855 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
856 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
857 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
858 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
859 mthca_unmap_eq_icm(mdev);
860
861 mthca_UNMAP_ICM_AUX(mdev, &status);
862 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
863
864 mthca_UNMAP_FA(mdev, &status);
865 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
866
867 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
868 mthca_DISABLE_LAM(mdev, &status);
869 } else
870 mthca_SYS_DIS(mdev, &status);
871 }
872
873 /* Types of supported HCA */
874 enum {
875 TAVOR, /* MT23108 */
876 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
877 ARBEL_NATIVE, /* MT25208 with extended features */
878 SINAI /* MT25204 */
879 };
880
881 #define MTHCA_FW_VER(major, minor, subminor) \
882 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
883
884 static struct {
885 u64 latest_fw;
886 int is_memfree;
887 int is_pcie;
888 } mthca_hca_table[] = {
889 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 2), .is_memfree = 0, .is_pcie = 0 },
890 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 6, 2), .is_memfree = 0, .is_pcie = 1 },
891 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 0, 1), .is_memfree = 1, .is_pcie = 1 },
892 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
893 };
894
895 static int __devinit mthca_init_one(struct pci_dev *pdev,
896 const struct pci_device_id *id)
897 {
898 static int mthca_version_printed = 0;
899 int ddr_hidden = 0;
900 int err;
901 struct mthca_dev *mdev;
902
903 if (!mthca_version_printed) {
904 printk(KERN_INFO "%s", mthca_version);
905 ++mthca_version_printed;
906 }
907
908 printk(KERN_INFO PFX "Initializing %s (%s)\n",
909 pci_pretty_name(pdev), pci_name(pdev));
910
911 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
912 printk(KERN_ERR PFX "%s (%s) has invalid driver data %lx\n",
913 pci_pretty_name(pdev), pci_name(pdev), id->driver_data);
914 return -ENODEV;
915 }
916
917 err = pci_enable_device(pdev);
918 if (err) {
919 dev_err(&pdev->dev, "Cannot enable PCI device, "
920 "aborting.\n");
921 return err;
922 }
923
924 /*
925 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
926 * be present)
927 */
928 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
929 pci_resource_len(pdev, 0) != 1 << 20) {
930 dev_err(&pdev->dev, "Missing DCS, aborting.");
931 err = -ENODEV;
932 goto err_disable_pdev;
933 }
934 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
935 pci_resource_len(pdev, 2) != 1 << 23) {
936 dev_err(&pdev->dev, "Missing UAR, aborting.");
937 err = -ENODEV;
938 goto err_disable_pdev;
939 }
940 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
941 ddr_hidden = 1;
942
943 err = mthca_request_regions(pdev, ddr_hidden);
944 if (err) {
945 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
946 "aborting.\n");
947 goto err_disable_pdev;
948 }
949
950 pci_set_master(pdev);
951
952 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
953 if (err) {
954 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
955 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
956 if (err) {
957 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
958 goto err_free_res;
959 }
960 }
961 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
962 if (err) {
963 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
964 "consistent PCI DMA mask.\n");
965 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
966 if (err) {
967 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
968 "aborting.\n");
969 goto err_free_res;
970 }
971 }
972
973 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
974 if (!mdev) {
975 dev_err(&pdev->dev, "Device struct alloc failed, "
976 "aborting.\n");
977 err = -ENOMEM;
978 goto err_free_res;
979 }
980
981 mdev->pdev = pdev;
982
983 if (ddr_hidden)
984 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
985 if (mthca_hca_table[id->driver_data].is_memfree)
986 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
987 if (mthca_hca_table[id->driver_data].is_pcie)
988 mdev->mthca_flags |= MTHCA_FLAG_PCIE;
989
990 /*
991 * Now reset the HCA before we touch the PCI capabilities or
992 * attempt a firmware command, since a boot ROM may have left
993 * the HCA in an undefined state.
994 */
995 err = mthca_reset(mdev);
996 if (err) {
997 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
998 goto err_free_dev;
999 }
1000
1001 if (msi_x && !mthca_enable_msi_x(mdev))
1002 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1003 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1004 !pci_enable_msi(pdev))
1005 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1006
1007 sema_init(&mdev->cmd.hcr_sem, 1);
1008 sema_init(&mdev->cmd.poll_sem, 1);
1009 mdev->cmd.use_events = 0;
1010
1011 mdev->hcr = ioremap(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, MTHCA_HCR_SIZE);
1012 if (!mdev->hcr) {
1013 mthca_err(mdev, "Couldn't map command register, "
1014 "aborting.\n");
1015 err = -ENOMEM;
1016 goto err_free_dev;
1017 }
1018
1019 err = mthca_tune_pci(mdev);
1020 if (err)
1021 goto err_iounmap;
1022
1023 err = mthca_init_hca(mdev);
1024 if (err)
1025 goto err_iounmap;
1026
1027 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
1028 mthca_warn(mdev, "HCA FW version %x.%x.%x is old (%x.%x.%x is current).\n",
1029 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1030 (int) (mdev->fw_ver & 0xffff),
1031 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
1032 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
1033 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
1034 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1035 }
1036
1037 err = mthca_setup_hca(mdev);
1038 if (err)
1039 goto err_close;
1040
1041 err = mthca_register_device(mdev);
1042 if (err)
1043 goto err_cleanup;
1044
1045 err = mthca_create_agents(mdev);
1046 if (err)
1047 goto err_unregister;
1048
1049 pci_set_drvdata(pdev, mdev);
1050
1051 return 0;
1052
1053 err_unregister:
1054 mthca_unregister_device(mdev);
1055
1056 err_cleanup:
1057 mthca_cleanup_mcg_table(mdev);
1058 mthca_cleanup_av_table(mdev);
1059 mthca_cleanup_qp_table(mdev);
1060 mthca_cleanup_cq_table(mdev);
1061 mthca_cmd_use_polling(mdev);
1062 mthca_cleanup_eq_table(mdev);
1063
1064 mthca_pd_free(mdev, &mdev->driver_pd);
1065
1066 mthca_cleanup_mr_table(mdev);
1067 mthca_cleanup_pd_table(mdev);
1068 mthca_cleanup_uar_table(mdev);
1069
1070 err_close:
1071 mthca_close_hca(mdev);
1072
1073 err_iounmap:
1074 iounmap(mdev->hcr);
1075
1076 err_free_dev:
1077 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1078 pci_disable_msix(pdev);
1079 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1080 pci_disable_msi(pdev);
1081
1082 ib_dealloc_device(&mdev->ib_dev);
1083
1084 err_free_res:
1085 mthca_release_regions(pdev, ddr_hidden);
1086
1087 err_disable_pdev:
1088 pci_disable_device(pdev);
1089 pci_set_drvdata(pdev, NULL);
1090 return err;
1091 }
1092
1093 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1094 {
1095 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1096 u8 status;
1097 int p;
1098
1099 if (mdev) {
1100 mthca_free_agents(mdev);
1101 mthca_unregister_device(mdev);
1102
1103 for (p = 1; p <= mdev->limits.num_ports; ++p)
1104 mthca_CLOSE_IB(mdev, p, &status);
1105
1106 mthca_cleanup_mcg_table(mdev);
1107 mthca_cleanup_av_table(mdev);
1108 mthca_cleanup_qp_table(mdev);
1109 mthca_cleanup_cq_table(mdev);
1110 mthca_cmd_use_polling(mdev);
1111 mthca_cleanup_eq_table(mdev);
1112
1113 mthca_pd_free(mdev, &mdev->driver_pd);
1114
1115 mthca_cleanup_mr_table(mdev);
1116 mthca_cleanup_pd_table(mdev);
1117
1118 iounmap(mdev->kar);
1119 mthca_uar_free(mdev, &mdev->driver_uar);
1120 mthca_cleanup_uar_table(mdev);
1121
1122 mthca_close_hca(mdev);
1123
1124 iounmap(mdev->hcr);
1125
1126 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1127 pci_disable_msix(pdev);
1128 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1129 pci_disable_msi(pdev);
1130
1131 ib_dealloc_device(&mdev->ib_dev);
1132 mthca_release_regions(pdev, mdev->mthca_flags &
1133 MTHCA_FLAG_DDR_HIDDEN);
1134 pci_disable_device(pdev);
1135 pci_set_drvdata(pdev, NULL);
1136 }
1137 }
1138
1139 static struct pci_device_id mthca_pci_table[] = {
1140 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1141 .driver_data = TAVOR },
1142 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1143 .driver_data = TAVOR },
1144 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1145 .driver_data = ARBEL_COMPAT },
1146 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1147 .driver_data = ARBEL_COMPAT },
1148 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1149 .driver_data = ARBEL_NATIVE },
1150 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1151 .driver_data = ARBEL_NATIVE },
1152 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1153 .driver_data = SINAI },
1154 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1155 .driver_data = SINAI },
1156 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1157 .driver_data = SINAI },
1158 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1159 .driver_data = SINAI },
1160 { 0, }
1161 };
1162
1163 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1164
1165 static struct pci_driver mthca_driver = {
1166 .name = "ib_mthca",
1167 .id_table = mthca_pci_table,
1168 .probe = mthca_init_one,
1169 .remove = __devexit_p(mthca_remove_one)
1170 };
1171
1172 static int __init mthca_init(void)
1173 {
1174 int ret;
1175
1176 ret = pci_register_driver(&mthca_driver);
1177 return ret < 0 ? ret : 0;
1178 }
1179
1180 static void __exit mthca_cleanup(void)
1181 {
1182 pci_unregister_driver(&mthca_driver);
1183 }
1184
1185 module_init(mthca_init);
1186 module_exit(mthca_cleanup);
linux kernel for loongson