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[PATCH] PCI: removed unneeded .owner field from struct pci_driver
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / infiniband / hw / mthca / mthca_main.c
blob6f94b25f3acd2ec15fda43cb337164ecb0ea7ccd
1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 *
34 * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
35 */
36
37 #include <linux/config.h>
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/errno.h>
41 #include <linux/pci.h>
42 #include <linux/interrupt.h>
43
44 #include "mthca_dev.h"
45 #include "mthca_config_reg.h"
46 #include "mthca_cmd.h"
47 #include "mthca_profile.h"
48 #include "mthca_memfree.h"
49
50 MODULE_AUTHOR("Roland Dreier");
51 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
52 MODULE_LICENSE("Dual BSD/GPL");
53 MODULE_VERSION(DRV_VERSION);
54
55 #ifdef CONFIG_PCI_MSI
56
57 static int msi_x = 0;
58 module_param(msi_x, int, 0444);
59 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
60
61 static int msi = 0;
62 module_param(msi, int, 0444);
63 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
64
65 #else /* CONFIG_PCI_MSI */
66
67 #define msi_x (0)
68 #define msi (0)
69
70 #endif /* CONFIG_PCI_MSI */
71
72 static const char mthca_version[] __devinitdata =
73 DRV_NAME ": Mellanox InfiniBand HCA driver v"
74 DRV_VERSION " (" DRV_RELDATE ")\n";
75
76 static struct mthca_profile default_profile = {
77 .num_qp = 1 << 16,
78 .rdb_per_qp = 4,
79 .num_cq = 1 << 16,
80 .num_mcg = 1 << 13,
81 .num_mpt = 1 << 17,
82 .num_mtt = 1 << 20,
83 .num_udav = 1 << 15, /* Tavor only */
84 .fmr_reserved_mtts = 1 << 18, /* Tavor only */
85 .uarc_size = 1 << 18, /* Arbel only */
86 };
87
88 static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
89 {
90 int cap;
91 u16 val;
92
93 /* First try to max out Read Byte Count */
94 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
95 if (cap) {
96 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
97 mthca_err(mdev, "Couldn't read PCI-X command register, "
98 "aborting.\n");
99 return -ENODEV;
100 }
101 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
102 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
103 mthca_err(mdev, "Couldn't write PCI-X command register, "
104 "aborting.\n");
105 return -ENODEV;
106 }
107 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
108 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
109
110 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
111 if (cap) {
112 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
113 mthca_err(mdev, "Couldn't read PCI Express device control "
114 "register, aborting.\n");
115 return -ENODEV;
116 }
117 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
118 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
119 mthca_err(mdev, "Couldn't write PCI Express device control "
120 "register, aborting.\n");
121 return -ENODEV;
122 }
123 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
124 mthca_info(mdev, "No PCI Express capability, "
125 "not setting Max Read Request Size.\n");
126
127 return 0;
128 }
129
130 static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
131 {
132 int err;
133 u8 status;
134
135 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
136 if (err) {
137 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
138 return err;
139 }
140 if (status) {
141 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
142 "aborting.\n", status);
143 return -EINVAL;
144 }
145 if (dev_lim->min_page_sz > PAGE_SIZE) {
146 mthca_err(mdev, "HCA minimum page size of %d bigger than "
147 "kernel PAGE_SIZE of %ld, aborting.\n",
148 dev_lim->min_page_sz, PAGE_SIZE);
149 return -ENODEV;
150 }
151 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
152 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
153 "aborting.\n",
154 dev_lim->num_ports, MTHCA_MAX_PORTS);
155 return -ENODEV;
156 }
157
158 mdev->limits.num_ports = dev_lim->num_ports;
159 mdev->limits.vl_cap = dev_lim->max_vl;
160 mdev->limits.mtu_cap = dev_lim->max_mtu;
161 mdev->limits.gid_table_len = dev_lim->max_gids;
162 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
163 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
164 mdev->limits.max_sg = dev_lim->max_sg;
165 mdev->limits.max_wqes = dev_lim->max_qp_sz;
166 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp;
167 mdev->limits.reserved_qps = dev_lim->reserved_qps;
168 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz;
169 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
170 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
171 mdev->limits.max_desc_sz = dev_lim->max_desc_sz;
172 /*
173 * Subtract 1 from the limit because we need to allocate a
174 * spare CQE so the HCA HW can tell the difference between an
175 * empty CQ and a full CQ.
176 */
177 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1;
178 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
179 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
180 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
181 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
182 mdev->limits.reserved_uars = dev_lim->reserved_uars;
183 mdev->limits.reserved_pds = dev_lim->reserved_pds;
184 mdev->limits.port_width_cap = dev_lim->max_port_width;
185 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
186 mdev->limits.flags = dev_lim->flags;
187
188 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
189 May be doable since hardware supports it for SRQ.
190
191 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
192
193 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
194 supported by driver. */
195 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
196 IB_DEVICE_PORT_ACTIVE_EVENT |
197 IB_DEVICE_SYS_IMAGE_GUID |
198 IB_DEVICE_RC_RNR_NAK_GEN;
199
200 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
201 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
202
203 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
204 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
205
206 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
207 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
208
209 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
210 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
211
212 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
213 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
214
215 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
216 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
217
218 return 0;
219 }
220
221 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
222 {
223 u8 status;
224 int err;
225 struct mthca_dev_lim dev_lim;
226 struct mthca_profile profile;
227 struct mthca_init_hca_param init_hca;
228
229 err = mthca_SYS_EN(mdev, &status);
230 if (err) {
231 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
232 return err;
233 }
234 if (status) {
235 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
236 "aborting.\n", status);
237 return -EINVAL;
238 }
239
240 err = mthca_QUERY_FW(mdev, &status);
241 if (err) {
242 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
243 goto err_disable;
244 }
245 if (status) {
246 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
247 "aborting.\n", status);
248 err = -EINVAL;
249 goto err_disable;
250 }
251 err = mthca_QUERY_DDR(mdev, &status);
252 if (err) {
253 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
254 goto err_disable;
255 }
256 if (status) {
257 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
258 "aborting.\n", status);
259 err = -EINVAL;
260 goto err_disable;
261 }
262
263 err = mthca_dev_lim(mdev, &dev_lim);
264
265 profile = default_profile;
266 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
267 profile.uarc_size = 0;
268 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
269 profile.num_srq = dev_lim.max_srqs;
270
271 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
272 if (err < 0)
273 goto err_disable;
274
275 err = mthca_INIT_HCA(mdev, &init_hca, &status);
276 if (err) {
277 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
278 goto err_disable;
279 }
280 if (status) {
281 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
282 "aborting.\n", status);
283 err = -EINVAL;
284 goto err_disable;
285 }
286
287 return 0;
288
289 err_disable:
290 mthca_SYS_DIS(mdev, &status);
291
292 return err;
293 }
294
295 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
296 {
297 u8 status;
298 int err;
299
300 /* FIXME: use HCA-attached memory for FW if present */
301
302 mdev->fw.arbel.fw_icm =
303 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
304 GFP_HIGHUSER | __GFP_NOWARN);
305 if (!mdev->fw.arbel.fw_icm) {
306 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
307 return -ENOMEM;
308 }
309
310 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
311 if (err) {
312 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
313 goto err_free;
314 }
315 if (status) {
316 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
317 err = -EINVAL;
318 goto err_free;
319 }
320 err = mthca_RUN_FW(mdev, &status);
321 if (err) {
322 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
323 goto err_unmap_fa;
324 }
325 if (status) {
326 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
327 err = -EINVAL;
328 goto err_unmap_fa;
329 }
330
331 return 0;
332
333 err_unmap_fa:
334 mthca_UNMAP_FA(mdev, &status);
335
336 err_free:
337 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
338 return err;
339 }
340
341 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
342 struct mthca_dev_lim *dev_lim,
343 struct mthca_init_hca_param *init_hca,
344 u64 icm_size)
345 {
346 u64 aux_pages;
347 u8 status;
348 int err;
349
350 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
351 if (err) {
352 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
353 return err;
354 }
355 if (status) {
356 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
357 "aborting.\n", status);
358 return -EINVAL;
359 }
360
361 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
362 (unsigned long long) icm_size >> 10,
363 (unsigned long long) aux_pages << 2);
364
365 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
366 GFP_HIGHUSER | __GFP_NOWARN);
367 if (!mdev->fw.arbel.aux_icm) {
368 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
369 return -ENOMEM;
370 }
371
372 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
373 if (err) {
374 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
375 goto err_free_aux;
376 }
377 if (status) {
378 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
379 err = -EINVAL;
380 goto err_free_aux;
381 }
382
383 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
384 if (err) {
385 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
386 goto err_unmap_aux;
387 }
388
389 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
390 MTHCA_MTT_SEG_SIZE,
391 mdev->limits.num_mtt_segs,
392 mdev->limits.reserved_mtts, 1);
393 if (!mdev->mr_table.mtt_table) {
394 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
395 err = -ENOMEM;
396 goto err_unmap_eq;
397 }
398
399 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
400 dev_lim->mpt_entry_sz,
401 mdev->limits.num_mpts,
402 mdev->limits.reserved_mrws, 1);
403 if (!mdev->mr_table.mpt_table) {
404 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
405 err = -ENOMEM;
406 goto err_unmap_mtt;
407 }
408
409 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
410 dev_lim->qpc_entry_sz,
411 mdev->limits.num_qps,
412 mdev->limits.reserved_qps, 0);
413 if (!mdev->qp_table.qp_table) {
414 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
415 err = -ENOMEM;
416 goto err_unmap_mpt;
417 }
418
419 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
420 dev_lim->eqpc_entry_sz,
421 mdev->limits.num_qps,
422 mdev->limits.reserved_qps, 0);
423 if (!mdev->qp_table.eqp_table) {
424 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
425 err = -ENOMEM;
426 goto err_unmap_qp;
427 }
428
429 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
430 MTHCA_RDB_ENTRY_SIZE,
431 mdev->limits.num_qps <<
432 mdev->qp_table.rdb_shift,
433 0, 0);
434 if (!mdev->qp_table.rdb_table) {
435 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
436 err = -ENOMEM;
437 goto err_unmap_eqp;
438 }
439
440 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
441 dev_lim->cqc_entry_sz,
442 mdev->limits.num_cqs,
443 mdev->limits.reserved_cqs, 0);
444 if (!mdev->cq_table.table) {
445 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
446 err = -ENOMEM;
447 goto err_unmap_rdb;
448 }
449
450 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
451 mdev->srq_table.table =
452 mthca_alloc_icm_table(mdev, init_hca->srqc_base,
453 dev_lim->srq_entry_sz,
454 mdev->limits.num_srqs,
455 mdev->limits.reserved_srqs, 0);
456 if (!mdev->srq_table.table) {
457 mthca_err(mdev, "Failed to map SRQ context memory, "
458 "aborting.\n");
459 err = -ENOMEM;
460 goto err_unmap_cq;
461 }
462 }
463
464 /*
465 * It's not strictly required, but for simplicity just map the
466 * whole multicast group table now. The table isn't very big
467 * and it's a lot easier than trying to track ref counts.
468 */
469 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
470 MTHCA_MGM_ENTRY_SIZE,
471 mdev->limits.num_mgms +
472 mdev->limits.num_amgms,
473 mdev->limits.num_mgms +
474 mdev->limits.num_amgms,
475 0);
476 if (!mdev->mcg_table.table) {
477 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
478 err = -ENOMEM;
479 goto err_unmap_srq;
480 }
481
482 return 0;
483
484 err_unmap_srq:
485 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
486 mthca_free_icm_table(mdev, mdev->srq_table.table);
487
488 err_unmap_cq:
489 mthca_free_icm_table(mdev, mdev->cq_table.table);
490
491 err_unmap_rdb:
492 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
493
494 err_unmap_eqp:
495 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
496
497 err_unmap_qp:
498 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
499
500 err_unmap_mpt:
501 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
502
503 err_unmap_mtt:
504 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
505
506 err_unmap_eq:
507 mthca_unmap_eq_icm(mdev);
508
509 err_unmap_aux:
510 mthca_UNMAP_ICM_AUX(mdev, &status);
511
512 err_free_aux:
513 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
514
515 return err;
516 }
517
518 static void mthca_free_icms(struct mthca_dev *mdev)
519 {
520 u8 status;
521
522 mthca_free_icm_table(mdev, mdev->mcg_table.table);
523 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
524 mthca_free_icm_table(mdev, mdev->srq_table.table);
525 mthca_free_icm_table(mdev, mdev->cq_table.table);
526 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
527 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
528 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
529 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
530 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
531 mthca_unmap_eq_icm(mdev);
532
533 mthca_UNMAP_ICM_AUX(mdev, &status);
534 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
535 }
536
537 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
538 {
539 struct mthca_dev_lim dev_lim;
540 struct mthca_profile profile;
541 struct mthca_init_hca_param init_hca;
542 u64 icm_size;
543 u8 status;
544 int err;
545
546 err = mthca_QUERY_FW(mdev, &status);
547 if (err) {
548 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
549 return err;
550 }
551 if (status) {
552 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
553 "aborting.\n", status);
554 return -EINVAL;
555 }
556
557 err = mthca_ENABLE_LAM(mdev, &status);
558 if (err) {
559 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
560 return err;
561 }
562 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
563 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
564 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
565 } else if (status) {
566 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
567 "aborting.\n", status);
568 return -EINVAL;
569 }
570
571 err = mthca_load_fw(mdev);
572 if (err) {
573 mthca_err(mdev, "Failed to start FW, aborting.\n");
574 goto err_disable;
575 }
576
577 err = mthca_dev_lim(mdev, &dev_lim);
578 if (err) {
579 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
580 goto err_stop_fw;
581 }
582
583 profile = default_profile;
584 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
585 profile.num_udav = 0;
586 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
587 profile.num_srq = dev_lim.max_srqs;
588
589 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
590 if ((int) icm_size < 0) {
591 err = icm_size;
592 goto err_stop_fw;
593 }
594
595 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
596 if (err)
597 goto err_stop_fw;
598
599 err = mthca_INIT_HCA(mdev, &init_hca, &status);
600 if (err) {
601 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
602 goto err_free_icm;
603 }
604 if (status) {
605 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
606 "aborting.\n", status);
607 err = -EINVAL;
608 goto err_free_icm;
609 }
610
611 return 0;
612
613 err_free_icm:
614 mthca_free_icms(mdev);
615
616 err_stop_fw:
617 mthca_UNMAP_FA(mdev, &status);
618 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
619
620 err_disable:
621 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
622 mthca_DISABLE_LAM(mdev, &status);
623
624 return err;
625 }
626
627 static void mthca_close_hca(struct mthca_dev *mdev)
628 {
629 u8 status;
630
631 mthca_CLOSE_HCA(mdev, 0, &status);
632
633 if (mthca_is_memfree(mdev)) {
634 mthca_free_icms(mdev);
635
636 mthca_UNMAP_FA(mdev, &status);
637 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
638
639 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
640 mthca_DISABLE_LAM(mdev, &status);
641 } else
642 mthca_SYS_DIS(mdev, &status);
643 }
644
645 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
646 {
647 u8 status;
648 int err;
649 struct mthca_adapter adapter;
650
651 if (mthca_is_memfree(mdev))
652 err = mthca_init_arbel(mdev);
653 else
654 err = mthca_init_tavor(mdev);
655
656 if (err)
657 return err;
658
659 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
660 if (err) {
661 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
662 goto err_close;
663 }
664 if (status) {
665 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
666 "aborting.\n", status);
667 err = -EINVAL;
668 goto err_close;
669 }
670
671 mdev->eq_table.inta_pin = adapter.inta_pin;
672 mdev->rev_id = adapter.revision_id;
673 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
674
675 return 0;
676
677 err_close:
678 mthca_close_hca(mdev);
679 return err;
680 }
681
682 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
683 {
684 int err;
685 u8 status;
686
687 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
688
689 err = mthca_init_uar_table(dev);
690 if (err) {
691 mthca_err(dev, "Failed to initialize "
692 "user access region table, aborting.\n");
693 return err;
694 }
695
696 err = mthca_uar_alloc(dev, &dev->driver_uar);
697 if (err) {
698 mthca_err(dev, "Failed to allocate driver access region, "
699 "aborting.\n");
700 goto err_uar_table_free;
701 }
702
703 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
704 if (!dev->kar) {
705 mthca_err(dev, "Couldn't map kernel access region, "
706 "aborting.\n");
707 err = -ENOMEM;
708 goto err_uar_free;
709 }
710
711 err = mthca_init_pd_table(dev);
712 if (err) {
713 mthca_err(dev, "Failed to initialize "
714 "protection domain table, aborting.\n");
715 goto err_kar_unmap;
716 }
717
718 err = mthca_init_mr_table(dev);
719 if (err) {
720 mthca_err(dev, "Failed to initialize "
721 "memory region table, aborting.\n");
722 goto err_pd_table_free;
723 }
724
725 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
726 if (err) {
727 mthca_err(dev, "Failed to create driver PD, "
728 "aborting.\n");
729 goto err_mr_table_free;
730 }
731
732 err = mthca_init_eq_table(dev);
733 if (err) {
734 mthca_err(dev, "Failed to initialize "
735 "event queue table, aborting.\n");
736 goto err_pd_free;
737 }
738
739 err = mthca_cmd_use_events(dev);
740 if (err) {
741 mthca_err(dev, "Failed to switch to event-driven "
742 "firmware commands, aborting.\n");
743 goto err_eq_table_free;
744 }
745
746 err = mthca_NOP(dev, &status);
747 if (err || status) {
748 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
749 dev->mthca_flags & MTHCA_FLAG_MSI_X ?
750 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
751 dev->pdev->irq);
752 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
753 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
754 else
755 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
756
757 goto err_cmd_poll;
758 }
759
760 mthca_dbg(dev, "NOP command IRQ test passed\n");
761
762 err = mthca_init_cq_table(dev);
763 if (err) {
764 mthca_err(dev, "Failed to initialize "
765 "completion queue table, aborting.\n");
766 goto err_cmd_poll;
767 }
768
769 err = mthca_init_srq_table(dev);
770 if (err) {
771 mthca_err(dev, "Failed to initialize "
772 "shared receive queue table, aborting.\n");
773 goto err_cq_table_free;
774 }
775
776 err = mthca_init_qp_table(dev);
777 if (err) {
778 mthca_err(dev, "Failed to initialize "
779 "queue pair table, aborting.\n");
780 goto err_srq_table_free;
781 }
782
783 err = mthca_init_av_table(dev);
784 if (err) {
785 mthca_err(dev, "Failed to initialize "
786 "address vector table, aborting.\n");
787 goto err_qp_table_free;
788 }
789
790 err = mthca_init_mcg_table(dev);
791 if (err) {
792 mthca_err(dev, "Failed to initialize "
793 "multicast group table, aborting.\n");
794 goto err_av_table_free;
795 }
796
797 return 0;
798
799 err_av_table_free:
800 mthca_cleanup_av_table(dev);
801
802 err_qp_table_free:
803 mthca_cleanup_qp_table(dev);
804
805 err_srq_table_free:
806 mthca_cleanup_srq_table(dev);
807
808 err_cq_table_free:
809 mthca_cleanup_cq_table(dev);
810
811 err_cmd_poll:
812 mthca_cmd_use_polling(dev);
813
814 err_eq_table_free:
815 mthca_cleanup_eq_table(dev);
816
817 err_pd_free:
818 mthca_pd_free(dev, &dev->driver_pd);
819
820 err_mr_table_free:
821 mthca_cleanup_mr_table(dev);
822
823 err_pd_table_free:
824 mthca_cleanup_pd_table(dev);
825
826 err_kar_unmap:
827 iounmap(dev->kar);
828
829 err_uar_free:
830 mthca_uar_free(dev, &dev->driver_uar);
831
832 err_uar_table_free:
833 mthca_cleanup_uar_table(dev);
834 return err;
835 }
836
837 static int __devinit mthca_request_regions(struct pci_dev *pdev,
838 int ddr_hidden)
839 {
840 int err;
841
842 /*
843 * We can't just use pci_request_regions() because the MSI-X
844 * table is right in the middle of the first BAR. If we did
845 * pci_request_region and grab all of the first BAR, then
846 * setting up MSI-X would fail, since the PCI core wants to do
847 * request_mem_region on the MSI-X vector table.
848 *
849 * So just request what we need right now, and request any
850 * other regions we need when setting up EQs.
851 */
852 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
853 MTHCA_HCR_SIZE, DRV_NAME))
854 return -EBUSY;
855
856 err = pci_request_region(pdev, 2, DRV_NAME);
857 if (err)
858 goto err_bar2_failed;
859
860 if (!ddr_hidden) {
861 err = pci_request_region(pdev, 4, DRV_NAME);
862 if (err)
863 goto err_bar4_failed;
864 }
865
866 return 0;
867
868 err_bar4_failed:
869 pci_release_region(pdev, 2);
870
871 err_bar2_failed:
872 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
873 MTHCA_HCR_SIZE);
874
875 return err;
876 }
877
878 static void mthca_release_regions(struct pci_dev *pdev,
879 int ddr_hidden)
880 {
881 if (!ddr_hidden)
882 pci_release_region(pdev, 4);
883
884 pci_release_region(pdev, 2);
885
886 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
887 MTHCA_HCR_SIZE);
888 }
889
890 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
891 {
892 struct msix_entry entries[3];
893 int err;
894
895 entries[0].entry = 0;
896 entries[1].entry = 1;
897 entries[2].entry = 2;
898
899 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
900 if (err) {
901 if (err > 0)
902 mthca_info(mdev, "Only %d MSI-X vectors available, "
903 "not using MSI-X\n", err);
904 return err;
905 }
906
907 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
908 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
909 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
910
911 return 0;
912 }
913
914 /* Types of supported HCA */
915 enum {
916 TAVOR, /* MT23108 */
917 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
918 ARBEL_NATIVE, /* MT25208 with extended features */
919 SINAI /* MT25204 */
920 };
921
922 #define MTHCA_FW_VER(major, minor, subminor) \
923 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
924
925 static struct {
926 u64 latest_fw;
927 int is_memfree;
928 int is_pcie;
929 } mthca_hca_table[] = {
930 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 },
931 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 },
932 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 },
933 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
934 };
935
936 static int __devinit mthca_init_one(struct pci_dev *pdev,
937 const struct pci_device_id *id)
938 {
939 static int mthca_version_printed = 0;
940 int ddr_hidden = 0;
941 int err;
942 struct mthca_dev *mdev;
943
944 if (!mthca_version_printed) {
945 printk(KERN_INFO "%s", mthca_version);
946 ++mthca_version_printed;
947 }
948
949 printk(KERN_INFO PFX "Initializing %s\n",
950 pci_name(pdev));
951
952 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
953 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
954 pci_name(pdev), id->driver_data);
955 return -ENODEV;
956 }
957
958 err = pci_enable_device(pdev);
959 if (err) {
960 dev_err(&pdev->dev, "Cannot enable PCI device, "
961 "aborting.\n");
962 return err;
963 }
964
965 /*
966 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
967 * be present)
968 */
969 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
970 pci_resource_len(pdev, 0) != 1 << 20) {
971 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
972 err = -ENODEV;
973 goto err_disable_pdev;
974 }
975 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
976 pci_resource_len(pdev, 2) != 1 << 23) {
977 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
978 err = -ENODEV;
979 goto err_disable_pdev;
980 }
981 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
982 ddr_hidden = 1;
983
984 err = mthca_request_regions(pdev, ddr_hidden);
985 if (err) {
986 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
987 "aborting.\n");
988 goto err_disable_pdev;
989 }
990
991 pci_set_master(pdev);
992
993 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
994 if (err) {
995 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
996 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
997 if (err) {
998 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
999 goto err_free_res;
1000 }
1001 }
1002 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1003 if (err) {
1004 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1005 "consistent PCI DMA mask.\n");
1006 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1007 if (err) {
1008 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1009 "aborting.\n");
1010 goto err_free_res;
1011 }
1012 }
1013
1014 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1015 if (!mdev) {
1016 dev_err(&pdev->dev, "Device struct alloc failed, "
1017 "aborting.\n");
1018 err = -ENOMEM;
1019 goto err_free_res;
1020 }
1021
1022 mdev->pdev = pdev;
1023
1024 if (ddr_hidden)
1025 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1026 if (mthca_hca_table[id->driver_data].is_memfree)
1027 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
1028 if (mthca_hca_table[id->driver_data].is_pcie)
1029 mdev->mthca_flags |= MTHCA_FLAG_PCIE;
1030
1031 /*
1032 * Now reset the HCA before we touch the PCI capabilities or
1033 * attempt a firmware command, since a boot ROM may have left
1034 * the HCA in an undefined state.
1035 */
1036 err = mthca_reset(mdev);
1037 if (err) {
1038 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1039 goto err_free_dev;
1040 }
1041
1042 if (msi_x && !mthca_enable_msi_x(mdev))
1043 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1044 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1045 !pci_enable_msi(pdev))
1046 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1047
1048 if (mthca_cmd_init(mdev)) {
1049 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1050 goto err_free_dev;
1051 }
1052
1053 err = mthca_tune_pci(mdev);
1054 if (err)
1055 goto err_cmd;
1056
1057 err = mthca_init_hca(mdev);
1058 if (err)
1059 goto err_cmd;
1060
1061 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
1062 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
1063 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1064 (int) (mdev->fw_ver & 0xffff),
1065 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
1066 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
1067 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
1068 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1069 }
1070
1071 err = mthca_setup_hca(mdev);
1072 if (err)
1073 goto err_close;
1074
1075 err = mthca_register_device(mdev);
1076 if (err)
1077 goto err_cleanup;
1078
1079 err = mthca_create_agents(mdev);
1080 if (err)
1081 goto err_unregister;
1082
1083 pci_set_drvdata(pdev, mdev);
1084
1085 return 0;
1086
1087 err_unregister:
1088 mthca_unregister_device(mdev);
1089
1090 err_cleanup:
1091 mthca_cleanup_mcg_table(mdev);
1092 mthca_cleanup_av_table(mdev);
1093 mthca_cleanup_qp_table(mdev);
1094 mthca_cleanup_srq_table(mdev);
1095 mthca_cleanup_cq_table(mdev);
1096 mthca_cmd_use_polling(mdev);
1097 mthca_cleanup_eq_table(mdev);
1098
1099 mthca_pd_free(mdev, &mdev->driver_pd);
1100
1101 mthca_cleanup_mr_table(mdev);
1102 mthca_cleanup_pd_table(mdev);
1103 mthca_cleanup_uar_table(mdev);
1104
1105 err_close:
1106 mthca_close_hca(mdev);
1107
1108 err_cmd:
1109 mthca_cmd_cleanup(mdev);
1110
1111 err_free_dev:
1112 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1113 pci_disable_msix(pdev);
1114 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1115 pci_disable_msi(pdev);
1116
1117 ib_dealloc_device(&mdev->ib_dev);
1118
1119 err_free_res:
1120 mthca_release_regions(pdev, ddr_hidden);
1121
1122 err_disable_pdev:
1123 pci_disable_device(pdev);
1124 pci_set_drvdata(pdev, NULL);
1125 return err;
1126 }
1127
1128 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1129 {
1130 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1131 u8 status;
1132 int p;
1133
1134 if (mdev) {
1135 mthca_free_agents(mdev);
1136 mthca_unregister_device(mdev);
1137
1138 for (p = 1; p <= mdev->limits.num_ports; ++p)
1139 mthca_CLOSE_IB(mdev, p, &status);
1140
1141 mthca_cleanup_mcg_table(mdev);
1142 mthca_cleanup_av_table(mdev);
1143 mthca_cleanup_qp_table(mdev);
1144 mthca_cleanup_srq_table(mdev);
1145 mthca_cleanup_cq_table(mdev);
1146 mthca_cmd_use_polling(mdev);
1147 mthca_cleanup_eq_table(mdev);
1148
1149 mthca_pd_free(mdev, &mdev->driver_pd);
1150
1151 mthca_cleanup_mr_table(mdev);
1152 mthca_cleanup_pd_table(mdev);
1153
1154 iounmap(mdev->kar);
1155 mthca_uar_free(mdev, &mdev->driver_uar);
1156 mthca_cleanup_uar_table(mdev);
1157 mthca_close_hca(mdev);
1158 mthca_cmd_cleanup(mdev);
1159
1160 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1161 pci_disable_msix(pdev);
1162 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1163 pci_disable_msi(pdev);
1164
1165 ib_dealloc_device(&mdev->ib_dev);
1166 mthca_release_regions(pdev, mdev->mthca_flags &
1167 MTHCA_FLAG_DDR_HIDDEN);
1168 pci_disable_device(pdev);
1169 pci_set_drvdata(pdev, NULL);
1170 }
1171 }
1172
1173 static struct pci_device_id mthca_pci_table[] = {
1174 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1175 .driver_data = TAVOR },
1176 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1177 .driver_data = TAVOR },
1178 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1179 .driver_data = ARBEL_COMPAT },
1180 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1181 .driver_data = ARBEL_COMPAT },
1182 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1183 .driver_data = ARBEL_NATIVE },
1184 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1185 .driver_data = ARBEL_NATIVE },
1186 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1187 .driver_data = SINAI },
1188 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1189 .driver_data = SINAI },
1190 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1191 .driver_data = SINAI },
1192 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1193 .driver_data = SINAI },
1194 { 0, }
1195 };
1196
1197 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1198
1199 static struct pci_driver mthca_driver = {
1200 .name = DRV_NAME,
1201 .id_table = mthca_pci_table,
1202 .probe = mthca_init_one,
1203 .remove = __devexit_p(mthca_remove_one)
1204 };
1205
1206 static int __init mthca_init(void)
1207 {
1208 int ret;
1209
1210 ret = pci_register_driver(&mthca_driver);
1211 return ret < 0 ? ret : 0;
1212 }
1213
1214 static void __exit mthca_cleanup(void)
1215 {
1216 pci_unregister_driver(&mthca_driver);
1217 }
1218
1219 module_init(mthca_init);
1220 module_exit(mthca_cleanup);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree