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[PATCH] IB: sparse endianness cleanup
[linux-block.git] / drivers / infiniband / hw / mthca / mthca_main.c
CommitLineData
1da177e4
LT		 1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
cd4e8fb4 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
2a1d9b7f 4 * Copyright (c) 2005 Mellanox Technologies. 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_main.c 1396 2004-12-28 04:10:27Z roland $
35 */
36
37#include <linux/config.h>
38#include <linux/version.h>
39#include <linux/module.h>
40#include <linux/init.h>
41#include <linux/errno.h>
42#include <linux/pci.h>
43#include <linux/interrupt.h>
44
45#include "mthca_dev.h"
46#include "mthca_config_reg.h"
47#include "mthca_cmd.h"
48#include "mthca_profile.h"
49#include "mthca_memfree.h"
50
51MODULE_AUTHOR("Roland Dreier");
52MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
53MODULE_LICENSE("Dual BSD/GPL");
54MODULE_VERSION(DRV_VERSION);
55
56#ifdef CONFIG_PCI_MSI
57
58static int msi_x = 0;
59module_param(msi_x, int, 0444);
60MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
61
62static int msi = 0;
63module_param(msi, int, 0444);
64MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
65
66#else /* CONFIG_PCI_MSI */
67
68#define msi_x (0)
69#define msi (0)
70
71#endif /* CONFIG_PCI_MSI */
72
73static const char mthca_version[] __devinitdata =
177214af 74 DRV_NAME ": Mellanox InfiniBand HCA driver v"
1da177e4
LT		 75 DRV_VERSION " (" DRV_RELDATE ")\n";
76
77static struct mthca_profile default_profile = {
e0f5fdca
MT		 78 .num_qp = 1 << 16,
79 .rdb_per_qp = 4,
80 .num_cq = 1 << 16,
81 .num_mcg = 1 << 13,
82 .num_mpt = 1 << 17,
83 .num_mtt = 1 << 20,
84 .num_udav = 1 << 15, /* Tavor only */
85 .fmr_reserved_mtts = 1 << 18, /* Tavor only */
86 .uarc_size = 1 << 18, /* Arbel only */
1da177e4
LT		 87};
88
89static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
90{
91 int cap;
92 u16 val;
93
94 /* First try to max out Read Byte Count */
95 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
96 if (cap) {
97 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
98 mthca_err(mdev, "Couldn't read PCI-X command register, "
99 "aborting.\n");
100 return -ENODEV;
101 }
102 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
103 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
104 mthca_err(mdev, "Couldn't write PCI-X command register, "
105 "aborting.\n");
106 return -ENODEV;
107 }
68a3c212 108 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
1da177e4
LT		 109 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
110
111 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
112 if (cap) {
113 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
114 mthca_err(mdev, "Couldn't read PCI Express device control "
115 "register, aborting.\n");
116 return -ENODEV;
117 }
118 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
119 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
120 mthca_err(mdev, "Couldn't write PCI Express device control "
121 "register, aborting.\n");
122 return -ENODEV;
123 }
68a3c212 124 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
1da177e4
LT		 125 mthca_info(mdev, "No PCI Express capability, "
126 "not setting Max Read Request Size.\n");
127
128 return 0;
129}
130
131static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
132{
133 int err;
134 u8 status;
135
136 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
137 if (err) {
138 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
139 return err;
140 }
141 if (status) {
142 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
143 "aborting.\n", status);
144 return -EINVAL;
145 }
146 if (dev_lim->min_page_sz > PAGE_SIZE) {
147 mthca_err(mdev, "HCA minimum page size of %d bigger than "
148 "kernel PAGE_SIZE of %ld, aborting.\n",
149 dev_lim->min_page_sz, PAGE_SIZE);
150 return -ENODEV;
151 }
152 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
153 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
154 "aborting.\n",
155 dev_lim->num_ports, MTHCA_MAX_PORTS);
156 return -ENODEV;
157 }
158
159 mdev->limits.num_ports = dev_lim->num_ports;
160 mdev->limits.vl_cap = dev_lim->max_vl;
161 mdev->limits.mtu_cap = dev_lim->max_mtu;
162 mdev->limits.gid_table_len = dev_lim->max_gids;
163 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
164 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
165 mdev->limits.max_sg = dev_lim->max_sg;
166 mdev->limits.reserved_qps = dev_lim->reserved_qps;
167 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
168 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
169 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
170 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
171 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
172 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
173 mdev->limits.reserved_uars = dev_lim->reserved_uars;
174 mdev->limits.reserved_pds = dev_lim->reserved_pds;
175
176 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
177 May be doable since hardware supports it for SRQ.
178
179 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
180
181 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
182 supported by driver. */
183 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
184 IB_DEVICE_PORT_ACTIVE_EVENT |
185 IB_DEVICE_SYS_IMAGE_GUID |
186 IB_DEVICE_RC_RNR_NAK_GEN;
187
188 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
189 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
190
191 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
192 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
193
194 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
195 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
196
197 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
198 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
199
200 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
201 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
202
203 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
204 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
205
206 return 0;
207}
208
209static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
210{
211 u8 status;
212 int err;
213 struct mthca_dev_lim dev_lim;
214 struct mthca_profile profile;
215 struct mthca_init_hca_param init_hca;
216 struct mthca_adapter adapter;
217
218 err = mthca_SYS_EN(mdev, &status);
219 if (err) {
220 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
221 return err;
222 }
223 if (status) {
224 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
225 "aborting.\n", status);
226 return -EINVAL;
227 }
228
229 err = mthca_QUERY_FW(mdev, &status);
230 if (err) {
231 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
232 goto err_disable;
233 }
234 if (status) {
235 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
236 "aborting.\n", status);
237 err = -EINVAL;
238 goto err_disable;
239 }
240 err = mthca_QUERY_DDR(mdev, &status);
241 if (err) {
242 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
243 goto err_disable;
244 }
245 if (status) {
246 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
247 "aborting.\n", status);
248 err = -EINVAL;
249 goto err_disable;
250 }
251
252 err = mthca_dev_lim(mdev, &dev_lim);
253
254 profile = default_profile;
255 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
256 profile.uarc_size = 0;
257
258 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
259 if (err < 0)
260 goto err_disable;
261
262 err = mthca_INIT_HCA(mdev, &init_hca, &status);
263 if (err) {
264 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
265 goto err_disable;
266 }
267 if (status) {
268 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
269 "aborting.\n", status);
270 err = -EINVAL;
271 goto err_disable;
272 }
273
274 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
275 if (err) {
276 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
277 goto err_close;
278 }
279 if (status) {
280 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
281 "aborting.\n", status);
282 err = -EINVAL;
283 goto err_close;
284 }
285
286 mdev->eq_table.inta_pin = adapter.inta_pin;
287 mdev->rev_id = adapter.revision_id;
288
289 return 0;
290
291err_close:
292 mthca_CLOSE_HCA(mdev, 0, &status);
293
294err_disable:
295 mthca_SYS_DIS(mdev, &status);
296
297 return err;
298}
299
300static int __devinit mthca_load_fw(struct mthca_dev *mdev)
301{
302 u8 status;
303 int err;
304
305 /* FIXME: use HCA-attached memory for FW if present */
306
307 mdev->fw.arbel.fw_icm =
308 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
309 GFP_HIGHUSER | __GFP_NOWARN);
310 if (!mdev->fw.arbel.fw_icm) {
311 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
312 return -ENOMEM;
313 }
314
315 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
316 if (err) {
317 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
318 goto err_free;
319 }
320 if (status) {
321 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
322 err = -EINVAL;
323 goto err_free;
324 }
325 err = mthca_RUN_FW(mdev, &status);
326 if (err) {
327 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
328 goto err_unmap_fa;
329 }
330 if (status) {
331 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
332 err = -EINVAL;
333 goto err_unmap_fa;
334 }
335
336 return 0;
337
338err_unmap_fa:
339 mthca_UNMAP_FA(mdev, &status);
340
341err_free:
342 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
343 return err;
344}
345
346static int __devinit mthca_init_icm(struct mthca_dev *mdev,
347 struct mthca_dev_lim *dev_lim,
348 struct mthca_init_hca_param *init_hca,
349 u64 icm_size)
350{
351 u64 aux_pages;
352 u8 status;
353 int err;
354
355 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
356 if (err) {
357 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
358 return err;
359 }
360 if (status) {
361 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
362 "aborting.\n", status);
363 return -EINVAL;
364 }
365
366 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
367 (unsigned long long) icm_size >> 10,
368 (unsigned long long) aux_pages << 2);
369
370 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
371 GFP_HIGHUSER | __GFP_NOWARN);
372 if (!mdev->fw.arbel.aux_icm) {
373 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
374 return -ENOMEM;
375 }
376
377 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
378 if (err) {
379 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
380 goto err_free_aux;
381 }
382 if (status) {
383 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
384 err = -EINVAL;
385 goto err_free_aux;
386 }
387
388 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
389 if (err) {
390 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
391 goto err_unmap_aux;
392 }
393
394 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
44ea6687 395 MTHCA_MTT_SEG_SIZE,
1da177e4
LT		 396 mdev->limits.num_mtt_segs,
397 mdev->limits.reserved_mtts, 1);
398 if (!mdev->mr_table.mtt_table) {
399 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
400 err = -ENOMEM;
401 goto err_unmap_eq;
402 }
403
404 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
405 dev_lim->mpt_entry_sz,
406 mdev->limits.num_mpts,
407 mdev->limits.reserved_mrws, 1);
408 if (!mdev->mr_table.mpt_table) {
409 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
410 err = -ENOMEM;
411 goto err_unmap_mtt;
412 }
413
414 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
415 dev_lim->qpc_entry_sz,
416 mdev->limits.num_qps,
417 mdev->limits.reserved_qps, 0);
418 if (!mdev->qp_table.qp_table) {
419 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
420 err = -ENOMEM;
421 goto err_unmap_mpt;
422 }
423
424 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
425 dev_lim->eqpc_entry_sz,
426 mdev->limits.num_qps,
427 mdev->limits.reserved_qps, 0);
428 if (!mdev->qp_table.eqp_table) {
429 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
430 err = -ENOMEM;
431 goto err_unmap_qp;
432 }
433
08aeb14e
RD		 434 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
435 MTHCA_RDB_ENTRY_SIZE,
436 mdev->limits.num_qps <<
437 mdev->qp_table.rdb_shift,
438 0, 0);
439 if (!mdev->qp_table.rdb_table) {
440 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
441 err = -ENOMEM;
19272d43 442 goto err_unmap_eqp;
08aeb14e
RD		 443 }
444
445 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
1da177e4
LT		 446 dev_lim->cqc_entry_sz,
447 mdev->limits.num_cqs,
448 mdev->limits.reserved_cqs, 0);
449 if (!mdev->cq_table.table) {
450 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
451 err = -ENOMEM;
08aeb14e 452 goto err_unmap_rdb;
1da177e4
LT		 453 }
454
455 /*
456 * It's not strictly required, but for simplicity just map the
457 * whole multicast group table now. The table isn't very big
458 * and it's a lot easier than trying to track ref counts.
459 */
460 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
461 MTHCA_MGM_ENTRY_SIZE,
462 mdev->limits.num_mgms +
463 mdev->limits.num_amgms,
464 mdev->limits.num_mgms +
465 mdev->limits.num_amgms,
466 0);
467 if (!mdev->mcg_table.table) {
468 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
469 err = -ENOMEM;
470 goto err_unmap_cq;
471 }
472
473 return 0;
474
475err_unmap_cq:
476 mthca_free_icm_table(mdev, mdev->cq_table.table);
477
08aeb14e
RD		 478err_unmap_rdb:
479 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
480
1da177e4
LT		 481err_unmap_eqp:
482 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
483
484err_unmap_qp:
485 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
486
487err_unmap_mpt:
488 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
489
490err_unmap_mtt:
491 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
492
493err_unmap_eq:
494 mthca_unmap_eq_icm(mdev);
495
496err_unmap_aux:
497 mthca_UNMAP_ICM_AUX(mdev, &status);
498
499err_free_aux:
500 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
501
502 return err;
503}
504
505static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
506{
507 struct mthca_dev_lim dev_lim;
508 struct mthca_profile profile;
509 struct mthca_init_hca_param init_hca;
510 struct mthca_adapter adapter;
511 u64 icm_size;
512 u8 status;
513 int err;
514
515 err = mthca_QUERY_FW(mdev, &status);
516 if (err) {
517 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
518 return err;
519 }
520 if (status) {
521 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
522 "aborting.\n", status);
523 return -EINVAL;
524 }
525
526 err = mthca_ENABLE_LAM(mdev, &status);
527 if (err) {
528 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
529 return err;
530 }
531 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
532 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
533 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
534 } else if (status) {
535 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
536 "aborting.\n", status);
537 return -EINVAL;
538 }
539
540 err = mthca_load_fw(mdev);
541 if (err) {
542 mthca_err(mdev, "Failed to start FW, aborting.\n");
543 goto err_disable;
544 }
545
546 err = mthca_dev_lim(mdev, &dev_lim);
547 if (err) {
548 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
549 goto err_stop_fw;
550 }
551
552 profile = default_profile;
553 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
554 profile.num_udav = 0;
555
556 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
557 if ((int) icm_size < 0) {
558 err = icm_size;
559 goto err_stop_fw;
560 }
561
562 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
563 if (err)
564 goto err_stop_fw;
565
566 err = mthca_INIT_HCA(mdev, &init_hca, &status);
567 if (err) {
568 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
569 goto err_free_icm;
570 }
571 if (status) {
572 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
573 "aborting.\n", status);
574 err = -EINVAL;
575 goto err_free_icm;
576 }
577
578 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
579 if (err) {
580 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
581 goto err_free_icm;
582 }
583 if (status) {
584 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
585 "aborting.\n", status);
586 err = -EINVAL;
587 goto err_free_icm;
588 }
589
590 mdev->eq_table.inta_pin = adapter.inta_pin;
591 mdev->rev_id = adapter.revision_id;
592
593 return 0;
594
595err_free_icm:
596 mthca_free_icm_table(mdev, mdev->cq_table.table);
68a3c212 597 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
1da177e4
LT		 598 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
599 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
600 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
601 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
602 mthca_unmap_eq_icm(mdev);
603
604 mthca_UNMAP_ICM_AUX(mdev, &status);
605 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
606
607err_stop_fw:
608 mthca_UNMAP_FA(mdev, &status);
609 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
610
611err_disable:
612 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
613 mthca_DISABLE_LAM(mdev, &status);
614
615 return err;
616}
617
618static int __devinit mthca_init_hca(struct mthca_dev *mdev)
619{
d10ddbf6 620 if (mthca_is_memfree(mdev))
1da177e4
LT		 621 return mthca_init_arbel(mdev);
622 else
623 return mthca_init_tavor(mdev);
624}
625
626static int __devinit mthca_setup_hca(struct mthca_dev *dev)
627{
628 int err;
629 u8 status;
630
631 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
632
633 err = mthca_init_uar_table(dev);
634 if (err) {
635 mthca_err(dev, "Failed to initialize "
636 "user access region table, aborting.\n");
637 return err;
638 }
639
640 err = mthca_uar_alloc(dev, &dev->driver_uar);
641 if (err) {
642 mthca_err(dev, "Failed to allocate driver access region, "
643 "aborting.\n");
644 goto err_uar_table_free;
645 }
646
647 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
648 if (!dev->kar) {
649 mthca_err(dev, "Couldn't map kernel access region, "
650 "aborting.\n");
651 err = -ENOMEM;
652 goto err_uar_free;
653 }
654
655 err = mthca_init_pd_table(dev);
656 if (err) {
657 mthca_err(dev, "Failed to initialize "
658 "protection domain table, aborting.\n");
659 goto err_kar_unmap;
660 }
661
662 err = mthca_init_mr_table(dev);
663 if (err) {
664 mthca_err(dev, "Failed to initialize "
665 "memory region table, aborting.\n");
666 goto err_pd_table_free;
667 }
668
99264c1e 669 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
1da177e4
LT		 670 if (err) {
671 mthca_err(dev, "Failed to create driver PD, "
672 "aborting.\n");
673 goto err_mr_table_free;
674 }
675
676 err = mthca_init_eq_table(dev);
677 if (err) {
678 mthca_err(dev, "Failed to initialize "
679 "event queue table, aborting.\n");
680 goto err_pd_free;
681 }
682
683 err = mthca_cmd_use_events(dev);
684 if (err) {
685 mthca_err(dev, "Failed to switch to event-driven "
686 "firmware commands, aborting.\n");
687 goto err_eq_table_free;
688 }
689
690 err = mthca_NOP(dev, &status);
691 if (err || status) {
4ad81174
RD		 692 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
693 dev->mthca_flags & MTHCA_FLAG_MSI_X ?
694 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
695 dev->pdev->irq);
1da177e4
LT		 696 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
697 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
698 else
699 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
700
701 goto err_cmd_poll;
702 }
703
704 mthca_dbg(dev, "NOP command IRQ test passed\n");
705
706 err = mthca_init_cq_table(dev);
707 if (err) {
708 mthca_err(dev, "Failed to initialize "
709 "completion queue table, aborting.\n");
710 goto err_cmd_poll;
711 }
712
713 err = mthca_init_qp_table(dev);
714 if (err) {
715 mthca_err(dev, "Failed to initialize "
716 "queue pair table, aborting.\n");
717 goto err_cq_table_free;
718 }
719
720 err = mthca_init_av_table(dev);
721 if (err) {
722 mthca_err(dev, "Failed to initialize "
723 "address vector table, aborting.\n");
724 goto err_qp_table_free;
725 }
726
727 err = mthca_init_mcg_table(dev);
728 if (err) {
729 mthca_err(dev, "Failed to initialize "
730 "multicast group table, aborting.\n");
731 goto err_av_table_free;
732 }
733
734 return 0;
735
736err_av_table_free:
737 mthca_cleanup_av_table(dev);
738
739err_qp_table_free:
740 mthca_cleanup_qp_table(dev);
741
742err_cq_table_free:
743 mthca_cleanup_cq_table(dev);
744
745err_cmd_poll:
746 mthca_cmd_use_polling(dev);
747
748err_eq_table_free:
749 mthca_cleanup_eq_table(dev);
750
751err_pd_free:
752 mthca_pd_free(dev, &dev->driver_pd);
753
754err_mr_table_free:
755 mthca_cleanup_mr_table(dev);
756
757err_pd_table_free:
758 mthca_cleanup_pd_table(dev);
759
760err_kar_unmap:
761 iounmap(dev->kar);
762
763err_uar_free:
764 mthca_uar_free(dev, &dev->driver_uar);
765
766err_uar_table_free:
767 mthca_cleanup_uar_table(dev);
768 return err;
769}
770
771static int __devinit mthca_request_regions(struct pci_dev *pdev,
772 int ddr_hidden)
773{
774 int err;
775
776 /*
777 * We can't just use pci_request_regions() because the MSI-X
778 * table is right in the middle of the first BAR. If we did
779 * pci_request_region and grab all of the first BAR, then
780 * setting up MSI-X would fail, since the PCI core wants to do
781 * request_mem_region on the MSI-X vector table.
782 *
783 * So just request what we need right now, and request any
784 * other regions we need when setting up EQs.
785 */
786 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
787 MTHCA_HCR_SIZE, DRV_NAME))
788 return -EBUSY;
789
790 err = pci_request_region(pdev, 2, DRV_NAME);
791 if (err)
792 goto err_bar2_failed;
793
794 if (!ddr_hidden) {
795 err = pci_request_region(pdev, 4, DRV_NAME);
796 if (err)
797 goto err_bar4_failed;
798 }
799
800 return 0;
801
802err_bar4_failed:
803 pci_release_region(pdev, 2);
804
805err_bar2_failed:
806 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
807 MTHCA_HCR_SIZE);
808
809 return err;
810}
811
812static void mthca_release_regions(struct pci_dev *pdev,
813 int ddr_hidden)
814{
815 if (!ddr_hidden)
816 pci_release_region(pdev, 4);
817
818 pci_release_region(pdev, 2);
819
820 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
821 MTHCA_HCR_SIZE);
822}
823
824static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
825{
826 struct msix_entry entries[3];
827 int err;
828
829 entries[0].entry = 0;
830 entries[1].entry = 1;
831 entries[2].entry = 2;
832
833 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
834 if (err) {
835 if (err > 0)
836 mthca_info(mdev, "Only %d MSI-X vectors available, "
837 "not using MSI-X\n", err);
838 return err;
839 }
840
841 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
842 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
843 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
844
845 return 0;
846}
847
848static void mthca_close_hca(struct mthca_dev *mdev)
849{
850 u8 status;
851
852 mthca_CLOSE_HCA(mdev, 0, &status);
853
d10ddbf6 854 if (mthca_is_memfree(mdev)) {
1da177e4 855 mthca_free_icm_table(mdev, mdev->cq_table.table);
68a3c212 856 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
1da177e4
LT		 857 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
858 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
859 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
860 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
861 mthca_unmap_eq_icm(mdev);
862
863 mthca_UNMAP_ICM_AUX(mdev, &status);
864 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
865
866 mthca_UNMAP_FA(mdev, &status);
867 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
868
869 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
870 mthca_DISABLE_LAM(mdev, &status);
871 } else
872 mthca_SYS_DIS(mdev, &status);
873}
874
68a3c212
RD		 875/* Types of supported HCA */
876enum {
877 TAVOR, /* MT23108 */
878 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
879 ARBEL_NATIVE, /* MT25208 with extended features */
880 SINAI /* MT25204 */
881};
882
883#define MTHCA_FW_VER(major, minor, subminor) \
884 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
885
886static struct {
887 u64 latest_fw;
888 int is_memfree;
889 int is_pcie;
890} mthca_hca_table[] = {
49f6a7fb
TK		 891 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 },
892 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 },
893 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 },
68a3c212
RD		 894 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
895};
896
1da177e4
LT		 897static int __devinit mthca_init_one(struct pci_dev *pdev,
898 const struct pci_device_id *id)
899{
900 static int mthca_version_printed = 0;
1da177e4
LT		 901 int ddr_hidden = 0;
902 int err;
903 struct mthca_dev *mdev;
904
905 if (!mthca_version_printed) {
906 printk(KERN_INFO "%s", mthca_version);
907 ++mthca_version_printed;
908 }
909
910 printk(KERN_INFO PFX "Initializing %s (%s)\n",
911 pci_pretty_name(pdev), pci_name(pdev));
912
68a3c212
RD		 913 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
914 printk(KERN_ERR PFX "%s (%s) has invalid driver data %lx\n",
915 pci_pretty_name(pdev), pci_name(pdev), id->driver_data);
916 return -ENODEV;
917 }
918
1da177e4
LT		 919 err = pci_enable_device(pdev);
920 if (err) {
921 dev_err(&pdev->dev, "Cannot enable PCI device, "
922 "aborting.\n");
923 return err;
924 }
925
926 /*
927 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
928 * be present)
929 */
930 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
931 pci_resource_len(pdev, 0) != 1 << 20) {
177214af 932 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1da177e4
LT		 933 err = -ENODEV;
934 goto err_disable_pdev;
935 }
936 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
937 pci_resource_len(pdev, 2) != 1 << 23) {
177214af 938 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1da177e4
LT		 939 err = -ENODEV;
940 goto err_disable_pdev;
941 }
942 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
943 ddr_hidden = 1;
944
945 err = mthca_request_regions(pdev, ddr_hidden);
946 if (err) {
947 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
948 "aborting.\n");
949 goto err_disable_pdev;
950 }
951
952 pci_set_master(pdev);
953
954 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
955 if (err) {
956 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
957 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
958 if (err) {
959 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
960 goto err_free_res;
961 }
962 }
963 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
964 if (err) {
965 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
966 "consistent PCI DMA mask.\n");
967 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
968 if (err) {
969 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
970 "aborting.\n");
971 goto err_free_res;
972 }
973 }
974
975 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
976 if (!mdev) {
977 dev_err(&pdev->dev, "Device struct alloc failed, "
978 "aborting.\n");
979 err = -ENOMEM;
980 goto err_free_res;
981 }
982
68a3c212 983 mdev->pdev = pdev;
1da177e4
LT		 984
985 if (ddr_hidden)
986 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
68a3c212
RD		 987 if (mthca_hca_table[id->driver_data].is_memfree)
988 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
989 if (mthca_hca_table[id->driver_data].is_pcie)
990 mdev->mthca_flags |= MTHCA_FLAG_PCIE;
1da177e4
LT		 991
992 /*
993 * Now reset the HCA before we touch the PCI capabilities or
994 * attempt a firmware command, since a boot ROM may have left
995 * the HCA in an undefined state.
996 */
997 err = mthca_reset(mdev);
998 if (err) {
999 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1000 goto err_free_dev;
1001 }
1002
1003 if (msi_x && !mthca_enable_msi_x(mdev))
1004 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1005 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1006 !pci_enable_msi(pdev))
1007 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1008
80fd8238
RD		 1009 if (mthca_cmd_init(mdev)) {
1010 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1da177e4
LT		 1011 goto err_free_dev;
1012 }
1013
1014 err = mthca_tune_pci(mdev);
1015 if (err)
80fd8238 1016 goto err_cmd;
1da177e4
LT		 1017
1018 err = mthca_init_hca(mdev);
1019 if (err)
80fd8238 1020 goto err_cmd;
1da177e4 1021
68a3c212
RD		 1022 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
1023 mthca_warn(mdev, "HCA FW version %x.%x.%x is old (%x.%x.%x is current).\n",
1024 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1025 (int) (mdev->fw_ver & 0xffff),
1026 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
1027 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
1028 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
1029 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1030 }
1031
1da177e4
LT		 1032 err = mthca_setup_hca(mdev);
1033 if (err)
1034 goto err_close;
1035
1036 err = mthca_register_device(mdev);
1037 if (err)
1038 goto err_cleanup;
1039
1040 err = mthca_create_agents(mdev);
1041 if (err)
1042 goto err_unregister;
1043
1044 pci_set_drvdata(pdev, mdev);
1045
1046 return 0;
1047
1048err_unregister:
1049 mthca_unregister_device(mdev);
1050
1051err_cleanup:
1052 mthca_cleanup_mcg_table(mdev);
1053 mthca_cleanup_av_table(mdev);
1054 mthca_cleanup_qp_table(mdev);
1055 mthca_cleanup_cq_table(mdev);
1056 mthca_cmd_use_polling(mdev);
1057 mthca_cleanup_eq_table(mdev);
1058
1059 mthca_pd_free(mdev, &mdev->driver_pd);
1060
1061 mthca_cleanup_mr_table(mdev);
1062 mthca_cleanup_pd_table(mdev);
1063 mthca_cleanup_uar_table(mdev);
1064
1065err_close:
1066 mthca_close_hca(mdev);
1067
80fd8238
RD		 1068err_cmd:
1069 mthca_cmd_cleanup(mdev);
1da177e4
LT		 1070
1071err_free_dev:
1072 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1073 pci_disable_msix(pdev);
1074 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1075 pci_disable_msi(pdev);
1076
1077 ib_dealloc_device(&mdev->ib_dev);
1078
1079err_free_res:
1080 mthca_release_regions(pdev, ddr_hidden);
1081
1082err_disable_pdev:
1083 pci_disable_device(pdev);
1084 pci_set_drvdata(pdev, NULL);
1085 return err;
1086}
1087
1088static void __devexit mthca_remove_one(struct pci_dev *pdev)
1089{
1090 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1091 u8 status;
1092 int p;
1093
1094 if (mdev) {
1095 mthca_free_agents(mdev);
1096 mthca_unregister_device(mdev);
1097
1098 for (p = 1; p <= mdev->limits.num_ports; ++p)
1099 mthca_CLOSE_IB(mdev, p, &status);
1100
1101 mthca_cleanup_mcg_table(mdev);
1102 mthca_cleanup_av_table(mdev);
1103 mthca_cleanup_qp_table(mdev);
1104 mthca_cleanup_cq_table(mdev);
1105 mthca_cmd_use_polling(mdev);
1106 mthca_cleanup_eq_table(mdev);
1107
1108 mthca_pd_free(mdev, &mdev->driver_pd);
1109
1110 mthca_cleanup_mr_table(mdev);
1111 mthca_cleanup_pd_table(mdev);
1112
1113 iounmap(mdev->kar);
1114 mthca_uar_free(mdev, &mdev->driver_uar);
1115 mthca_cleanup_uar_table(mdev);
1da177e4 1116 mthca_close_hca(mdev);
80fd8238 1117 mthca_cmd_cleanup(mdev);
1da177e4
LT		 1118
1119 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1120 pci_disable_msix(pdev);
1121 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1122 pci_disable_msi(pdev);
1123
1124 ib_dealloc_device(&mdev->ib_dev);
1125 mthca_release_regions(pdev, mdev->mthca_flags &
1126 MTHCA_FLAG_DDR_HIDDEN);
1127 pci_disable_device(pdev);
1128 pci_set_drvdata(pdev, NULL);
1129 }
1130}
1131
1132static struct pci_device_id mthca_pci_table[] = {
1133 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1134 .driver_data = TAVOR },
1135 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1136 .driver_data = TAVOR },
1137 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1138 .driver_data = ARBEL_COMPAT },
1139 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1140 .driver_data = ARBEL_COMPAT },
1141 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1142 .driver_data = ARBEL_NATIVE },
1143 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1144 .driver_data = ARBEL_NATIVE },
68a3c212
RD		 1145 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1146 .driver_data = SINAI },
1147 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1148 .driver_data = SINAI },
1149 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1150 .driver_data = SINAI },
1151 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1152 .driver_data = SINAI },
1da177e4
LT		 1153 { 0, }
1154};
1155
1156MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1157
1158static struct pci_driver mthca_driver = {
177214af 1159 .name = DRV_NAME,
1da177e4
LT		 1160 .id_table = mthca_pci_table,
1161 .probe = mthca_init_one,
1162 .remove = __devexit_p(mthca_remove_one)
1163};
1164
1165static int __init mthca_init(void)
1166{
1167 int ret;
1168
1169 ret = pci_register_driver(&mthca_driver);
1170 return ret < 0 ? ret : 0;
1171}
1172
1173static void __exit mthca_cleanup(void)
1174{
1175 pci_unregister_driver(&mthca_driver);
1176}
1177
1178module_init(mthca_init);
1179module_exit(mthca_cleanup);
Linux 6.x block layer and io_uring tree(s)