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Merge branch 'fix/pcm-hwptr' into for-linus
[linux/fpc-iii.git] / drivers / infiniband / hw / mthca / mthca_main.c
blob13da9f1d24c0a2bf9d715f32701d0cb02406cba2
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
35 #include <linux/module.h>
36 #include <linux/init.h>
37 #include <linux/errno.h>
38 #include <linux/pci.h>
39 #include <linux/interrupt.h>
40
41 #include "mthca_dev.h"
42 #include "mthca_config_reg.h"
43 #include "mthca_cmd.h"
44 #include "mthca_profile.h"
45 #include "mthca_memfree.h"
46 #include "mthca_wqe.h"
47
48 MODULE_AUTHOR("Roland Dreier");
49 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
50 MODULE_LICENSE("Dual BSD/GPL");
51 MODULE_VERSION(DRV_VERSION);
52
53 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
54
55 int mthca_debug_level = 0;
56 module_param_named(debug_level, mthca_debug_level, int, 0644);
57 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
58
59 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
60
61 #ifdef CONFIG_PCI_MSI
62
63 static int msi_x = 1;
64 module_param(msi_x, int, 0444);
65 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
66
67 #else /* CONFIG_PCI_MSI */
68
69 #define msi_x (0)
70
71 #endif /* CONFIG_PCI_MSI */
72
73 static int tune_pci = 0;
74 module_param(tune_pci, int, 0444);
75 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
76
77 DEFINE_MUTEX(mthca_device_mutex);
78
79 #define MTHCA_DEFAULT_NUM_QP (1 << 16)
80 #define MTHCA_DEFAULT_RDB_PER_QP (1 << 2)
81 #define MTHCA_DEFAULT_NUM_CQ (1 << 16)
82 #define MTHCA_DEFAULT_NUM_MCG (1 << 13)
83 #define MTHCA_DEFAULT_NUM_MPT (1 << 17)
84 #define MTHCA_DEFAULT_NUM_MTT (1 << 20)
85 #define MTHCA_DEFAULT_NUM_UDAV (1 << 15)
86 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
87 #define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18)
88
89 static struct mthca_profile hca_profile = {
90 .num_qp = MTHCA_DEFAULT_NUM_QP,
91 .rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP,
92 .num_cq = MTHCA_DEFAULT_NUM_CQ,
93 .num_mcg = MTHCA_DEFAULT_NUM_MCG,
94 .num_mpt = MTHCA_DEFAULT_NUM_MPT,
95 .num_mtt = MTHCA_DEFAULT_NUM_MTT,
96 .num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */
97 .fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
98 .uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */
99 };
100
101 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
102 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
103
104 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
105 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
106
107 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
108 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
109
110 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
111 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
112
113 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
114 MODULE_PARM_DESC(num_mpt,
115 "maximum number of memory protection table entries per HCA");
116
117 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
118 MODULE_PARM_DESC(num_mtt,
119 "maximum number of memory translation table segments per HCA");
120
121 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
122 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
123
124 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
125 MODULE_PARM_DESC(fmr_reserved_mtts,
126 "number of memory translation table segments reserved for FMR");
127
128 static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
129 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
130 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)");
131
132 static char mthca_version[] __devinitdata =
133 DRV_NAME ": Mellanox InfiniBand HCA driver v"
134 DRV_VERSION " (" DRV_RELDATE ")\n";
135
136 static int mthca_tune_pci(struct mthca_dev *mdev)
137 {
138 if (!tune_pci)
139 return 0;
140
141 /* First try to max out Read Byte Count */
142 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
143 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
144 mthca_err(mdev, "Couldn't set PCI-X max read count, "
145 "aborting.\n");
146 return -ENODEV;
147 }
148 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
149 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
150
151 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
152 if (pcie_set_readrq(mdev->pdev, 4096)) {
153 mthca_err(mdev, "Couldn't write PCI Express read request, "
154 "aborting.\n");
155 return -ENODEV;
156 }
157 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
158 mthca_info(mdev, "No PCI Express capability, "
159 "not setting Max Read Request Size.\n");
160
161 return 0;
162 }
163
164 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
165 {
166 int err;
167 u8 status;
168
169 mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
170 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
171 if (err) {
172 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
173 return err;
174 }
175 if (status) {
176 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
177 "aborting.\n", status);
178 return -EINVAL;
179 }
180 if (dev_lim->min_page_sz > PAGE_SIZE) {
181 mthca_err(mdev, "HCA minimum page size of %d bigger than "
182 "kernel PAGE_SIZE of %ld, aborting.\n",
183 dev_lim->min_page_sz, PAGE_SIZE);
184 return -ENODEV;
185 }
186 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
187 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
188 "aborting.\n",
189 dev_lim->num_ports, MTHCA_MAX_PORTS);
190 return -ENODEV;
191 }
192
193 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
194 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
195 "PCI resource 2 size of 0x%llx, aborting.\n",
196 dev_lim->uar_size,
197 (unsigned long long)pci_resource_len(mdev->pdev, 2));
198 return -ENODEV;
199 }
200
201 mdev->limits.num_ports = dev_lim->num_ports;
202 mdev->limits.vl_cap = dev_lim->max_vl;
203 mdev->limits.mtu_cap = dev_lim->max_mtu;
204 mdev->limits.gid_table_len = dev_lim->max_gids;
205 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
206 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
207 /*
208 * Need to allow for worst case send WQE overhead and check
209 * whether max_desc_sz imposes a lower limit than max_sg; UD
210 * send has the biggest overhead.
211 */
212 mdev->limits.max_sg = min_t(int, dev_lim->max_sg,
213 (dev_lim->max_desc_sz -
214 sizeof (struct mthca_next_seg) -
215 (mthca_is_memfree(mdev) ?
216 sizeof (struct mthca_arbel_ud_seg) :
217 sizeof (struct mthca_tavor_ud_seg))) /
218 sizeof (struct mthca_data_seg));
219 mdev->limits.max_wqes = dev_lim->max_qp_sz;
220 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp;
221 mdev->limits.reserved_qps = dev_lim->reserved_qps;
222 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz;
223 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
224 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
225 mdev->limits.max_desc_sz = dev_lim->max_desc_sz;
226 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev);
227 /*
228 * Subtract 1 from the limit because we need to allocate a
229 * spare CQE so the HCA HW can tell the difference between an
230 * empty CQ and a full CQ.
231 */
232 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1;
233 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
234 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
235 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
236 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
237 mdev->limits.reserved_uars = dev_lim->reserved_uars;
238 mdev->limits.reserved_pds = dev_lim->reserved_pds;
239 mdev->limits.port_width_cap = dev_lim->max_port_width;
240 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
241 mdev->limits.flags = dev_lim->flags;
242 /*
243 * For old FW that doesn't return static rate support, use a
244 * value of 0x3 (only static rate values of 0 or 1 are handled),
245 * except on Sinai, where even old FW can handle static rate
246 * values of 2 and 3.
247 */
248 if (dev_lim->stat_rate_support)
249 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
250 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
251 mdev->limits.stat_rate_support = 0xf;
252 else
253 mdev->limits.stat_rate_support = 0x3;
254
255 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
256 May be doable since hardware supports it for SRQ.
257
258 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
259
260 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
261 supported by driver. */
262 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
263 IB_DEVICE_PORT_ACTIVE_EVENT |
264 IB_DEVICE_SYS_IMAGE_GUID |
265 IB_DEVICE_RC_RNR_NAK_GEN;
266
267 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
268 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
269
270 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
271 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
272
273 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
274 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
275
276 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
277 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
278
279 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
280 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
281
282 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
283 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
284
285 if (mthca_is_memfree(mdev))
286 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
287 mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
288
289 return 0;
290 }
291
292 static int mthca_init_tavor(struct mthca_dev *mdev)
293 {
294 s64 size;
295 u8 status;
296 int err;
297 struct mthca_dev_lim dev_lim;
298 struct mthca_profile profile;
299 struct mthca_init_hca_param init_hca;
300
301 err = mthca_SYS_EN(mdev, &status);
302 if (err) {
303 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
304 return err;
305 }
306 if (status) {
307 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
308 "aborting.\n", status);
309 return -EINVAL;
310 }
311
312 err = mthca_QUERY_FW(mdev, &status);
313 if (err) {
314 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
315 goto err_disable;
316 }
317 if (status) {
318 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
319 "aborting.\n", status);
320 err = -EINVAL;
321 goto err_disable;
322 }
323 err = mthca_QUERY_DDR(mdev, &status);
324 if (err) {
325 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
326 goto err_disable;
327 }
328 if (status) {
329 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
330 "aborting.\n", status);
331 err = -EINVAL;
332 goto err_disable;
333 }
334
335 err = mthca_dev_lim(mdev, &dev_lim);
336 if (err) {
337 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
338 goto err_disable;
339 }
340
341 profile = hca_profile;
342 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
343 profile.uarc_size = 0;
344 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
345 profile.num_srq = dev_lim.max_srqs;
346
347 size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
348 if (size < 0) {
349 err = size;
350 goto err_disable;
351 }
352
353 err = mthca_INIT_HCA(mdev, &init_hca, &status);
354 if (err) {
355 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
356 goto err_disable;
357 }
358 if (status) {
359 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
360 "aborting.\n", status);
361 err = -EINVAL;
362 goto err_disable;
363 }
364
365 return 0;
366
367 err_disable:
368 mthca_SYS_DIS(mdev, &status);
369
370 return err;
371 }
372
373 static int mthca_load_fw(struct mthca_dev *mdev)
374 {
375 u8 status;
376 int err;
377
378 /* FIXME: use HCA-attached memory for FW if present */
379
380 mdev->fw.arbel.fw_icm =
381 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
382 GFP_HIGHUSER | __GFP_NOWARN, 0);
383 if (!mdev->fw.arbel.fw_icm) {
384 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
385 return -ENOMEM;
386 }
387
388 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
389 if (err) {
390 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
391 goto err_free;
392 }
393 if (status) {
394 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
395 err = -EINVAL;
396 goto err_free;
397 }
398 err = mthca_RUN_FW(mdev, &status);
399 if (err) {
400 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
401 goto err_unmap_fa;
402 }
403 if (status) {
404 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
405 err = -EINVAL;
406 goto err_unmap_fa;
407 }
408
409 return 0;
410
411 err_unmap_fa:
412 mthca_UNMAP_FA(mdev, &status);
413
414 err_free:
415 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
416 return err;
417 }
418
419 static int mthca_init_icm(struct mthca_dev *mdev,
420 struct mthca_dev_lim *dev_lim,
421 struct mthca_init_hca_param *init_hca,
422 u64 icm_size)
423 {
424 u64 aux_pages;
425 u8 status;
426 int err;
427
428 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
429 if (err) {
430 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
431 return err;
432 }
433 if (status) {
434 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
435 "aborting.\n", status);
436 return -EINVAL;
437 }
438
439 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
440 (unsigned long long) icm_size >> 10,
441 (unsigned long long) aux_pages << 2);
442
443 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
444 GFP_HIGHUSER | __GFP_NOWARN, 0);
445 if (!mdev->fw.arbel.aux_icm) {
446 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
447 return -ENOMEM;
448 }
449
450 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
451 if (err) {
452 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
453 goto err_free_aux;
454 }
455 if (status) {
456 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
457 err = -EINVAL;
458 goto err_free_aux;
459 }
460
461 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
462 if (err) {
463 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
464 goto err_unmap_aux;
465 }
466
467 /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
468 mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
469 dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
470
471 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
472 mdev->limits.mtt_seg_size,
473 mdev->limits.num_mtt_segs,
474 mdev->limits.reserved_mtts,
475 1, 0);
476 if (!mdev->mr_table.mtt_table) {
477 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
478 err = -ENOMEM;
479 goto err_unmap_eq;
480 }
481
482 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
483 dev_lim->mpt_entry_sz,
484 mdev->limits.num_mpts,
485 mdev->limits.reserved_mrws,
486 1, 1);
487 if (!mdev->mr_table.mpt_table) {
488 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
489 err = -ENOMEM;
490 goto err_unmap_mtt;
491 }
492
493 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
494 dev_lim->qpc_entry_sz,
495 mdev->limits.num_qps,
496 mdev->limits.reserved_qps,
497 0, 0);
498 if (!mdev->qp_table.qp_table) {
499 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
500 err = -ENOMEM;
501 goto err_unmap_mpt;
502 }
503
504 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
505 dev_lim->eqpc_entry_sz,
506 mdev->limits.num_qps,
507 mdev->limits.reserved_qps,
508 0, 0);
509 if (!mdev->qp_table.eqp_table) {
510 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
511 err = -ENOMEM;
512 goto err_unmap_qp;
513 }
514
515 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
516 MTHCA_RDB_ENTRY_SIZE,
517 mdev->limits.num_qps <<
518 mdev->qp_table.rdb_shift, 0,
519 0, 0);
520 if (!mdev->qp_table.rdb_table) {
521 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
522 err = -ENOMEM;
523 goto err_unmap_eqp;
524 }
525
526 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
527 dev_lim->cqc_entry_sz,
528 mdev->limits.num_cqs,
529 mdev->limits.reserved_cqs,
530 0, 0);
531 if (!mdev->cq_table.table) {
532 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
533 err = -ENOMEM;
534 goto err_unmap_rdb;
535 }
536
537 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
538 mdev->srq_table.table =
539 mthca_alloc_icm_table(mdev, init_hca->srqc_base,
540 dev_lim->srq_entry_sz,
541 mdev->limits.num_srqs,
542 mdev->limits.reserved_srqs,
543 0, 0);
544 if (!mdev->srq_table.table) {
545 mthca_err(mdev, "Failed to map SRQ context memory, "
546 "aborting.\n");
547 err = -ENOMEM;
548 goto err_unmap_cq;
549 }
550 }
551
552 /*
553 * It's not strictly required, but for simplicity just map the
554 * whole multicast group table now. The table isn't very big
555 * and it's a lot easier than trying to track ref counts.
556 */
557 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
558 MTHCA_MGM_ENTRY_SIZE,
559 mdev->limits.num_mgms +
560 mdev->limits.num_amgms,
561 mdev->limits.num_mgms +
562 mdev->limits.num_amgms,
563 0, 0);
564 if (!mdev->mcg_table.table) {
565 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
566 err = -ENOMEM;
567 goto err_unmap_srq;
568 }
569
570 return 0;
571
572 err_unmap_srq:
573 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
574 mthca_free_icm_table(mdev, mdev->srq_table.table);
575
576 err_unmap_cq:
577 mthca_free_icm_table(mdev, mdev->cq_table.table);
578
579 err_unmap_rdb:
580 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
581
582 err_unmap_eqp:
583 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
584
585 err_unmap_qp:
586 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
587
588 err_unmap_mpt:
589 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
590
591 err_unmap_mtt:
592 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
593
594 err_unmap_eq:
595 mthca_unmap_eq_icm(mdev);
596
597 err_unmap_aux:
598 mthca_UNMAP_ICM_AUX(mdev, &status);
599
600 err_free_aux:
601 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
602
603 return err;
604 }
605
606 static void mthca_free_icms(struct mthca_dev *mdev)
607 {
608 u8 status;
609
610 mthca_free_icm_table(mdev, mdev->mcg_table.table);
611 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
612 mthca_free_icm_table(mdev, mdev->srq_table.table);
613 mthca_free_icm_table(mdev, mdev->cq_table.table);
614 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
615 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
616 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
617 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
618 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
619 mthca_unmap_eq_icm(mdev);
620
621 mthca_UNMAP_ICM_AUX(mdev, &status);
622 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
623 }
624
625 static int mthca_init_arbel(struct mthca_dev *mdev)
626 {
627 struct mthca_dev_lim dev_lim;
628 struct mthca_profile profile;
629 struct mthca_init_hca_param init_hca;
630 s64 icm_size;
631 u8 status;
632 int err;
633
634 err = mthca_QUERY_FW(mdev, &status);
635 if (err) {
636 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
637 return err;
638 }
639 if (status) {
640 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
641 "aborting.\n", status);
642 return -EINVAL;
643 }
644
645 err = mthca_ENABLE_LAM(mdev, &status);
646 if (err) {
647 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
648 return err;
649 }
650 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
651 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
652 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
653 } else if (status) {
654 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
655 "aborting.\n", status);
656 return -EINVAL;
657 }
658
659 err = mthca_load_fw(mdev);
660 if (err) {
661 mthca_err(mdev, "Failed to start FW, aborting.\n");
662 goto err_disable;
663 }
664
665 err = mthca_dev_lim(mdev, &dev_lim);
666 if (err) {
667 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
668 goto err_stop_fw;
669 }
670
671 profile = hca_profile;
672 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
673 profile.num_udav = 0;
674 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
675 profile.num_srq = dev_lim.max_srqs;
676
677 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
678 if (icm_size < 0) {
679 err = icm_size;
680 goto err_stop_fw;
681 }
682
683 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
684 if (err)
685 goto err_stop_fw;
686
687 err = mthca_INIT_HCA(mdev, &init_hca, &status);
688 if (err) {
689 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
690 goto err_free_icm;
691 }
692 if (status) {
693 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
694 "aborting.\n", status);
695 err = -EINVAL;
696 goto err_free_icm;
697 }
698
699 return 0;
700
701 err_free_icm:
702 mthca_free_icms(mdev);
703
704 err_stop_fw:
705 mthca_UNMAP_FA(mdev, &status);
706 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
707
708 err_disable:
709 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
710 mthca_DISABLE_LAM(mdev, &status);
711
712 return err;
713 }
714
715 static void mthca_close_hca(struct mthca_dev *mdev)
716 {
717 u8 status;
718
719 mthca_CLOSE_HCA(mdev, 0, &status);
720
721 if (mthca_is_memfree(mdev)) {
722 mthca_free_icms(mdev);
723
724 mthca_UNMAP_FA(mdev, &status);
725 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
726
727 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
728 mthca_DISABLE_LAM(mdev, &status);
729 } else
730 mthca_SYS_DIS(mdev, &status);
731 }
732
733 static int mthca_init_hca(struct mthca_dev *mdev)
734 {
735 u8 status;
736 int err;
737 struct mthca_adapter adapter;
738
739 if (mthca_is_memfree(mdev))
740 err = mthca_init_arbel(mdev);
741 else
742 err = mthca_init_tavor(mdev);
743
744 if (err)
745 return err;
746
747 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
748 if (err) {
749 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
750 goto err_close;
751 }
752 if (status) {
753 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
754 "aborting.\n", status);
755 err = -EINVAL;
756 goto err_close;
757 }
758
759 mdev->eq_table.inta_pin = adapter.inta_pin;
760 if (!mthca_is_memfree(mdev))
761 mdev->rev_id = adapter.revision_id;
762 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
763
764 return 0;
765
766 err_close:
767 mthca_close_hca(mdev);
768 return err;
769 }
770
771 static int mthca_setup_hca(struct mthca_dev *dev)
772 {
773 int err;
774 u8 status;
775
776 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
777
778 err = mthca_init_uar_table(dev);
779 if (err) {
780 mthca_err(dev, "Failed to initialize "
781 "user access region table, aborting.\n");
782 return err;
783 }
784
785 err = mthca_uar_alloc(dev, &dev->driver_uar);
786 if (err) {
787 mthca_err(dev, "Failed to allocate driver access region, "
788 "aborting.\n");
789 goto err_uar_table_free;
790 }
791
792 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
793 if (!dev->kar) {
794 mthca_err(dev, "Couldn't map kernel access region, "
795 "aborting.\n");
796 err = -ENOMEM;
797 goto err_uar_free;
798 }
799
800 err = mthca_init_pd_table(dev);
801 if (err) {
802 mthca_err(dev, "Failed to initialize "
803 "protection domain table, aborting.\n");
804 goto err_kar_unmap;
805 }
806
807 err = mthca_init_mr_table(dev);
808 if (err) {
809 mthca_err(dev, "Failed to initialize "
810 "memory region table, aborting.\n");
811 goto err_pd_table_free;
812 }
813
814 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
815 if (err) {
816 mthca_err(dev, "Failed to create driver PD, "
817 "aborting.\n");
818 goto err_mr_table_free;
819 }
820
821 err = mthca_init_eq_table(dev);
822 if (err) {
823 mthca_err(dev, "Failed to initialize "
824 "event queue table, aborting.\n");
825 goto err_pd_free;
826 }
827
828 err = mthca_cmd_use_events(dev);
829 if (err) {
830 mthca_err(dev, "Failed to switch to event-driven "
831 "firmware commands, aborting.\n");
832 goto err_eq_table_free;
833 }
834
835 err = mthca_NOP(dev, &status);
836 if (err || status) {
837 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
838 mthca_warn(dev, "NOP command failed to generate interrupt "
839 "(IRQ %d).\n",
840 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
841 mthca_warn(dev, "Trying again with MSI-X disabled.\n");
842 } else {
843 mthca_err(dev, "NOP command failed to generate interrupt "
844 "(IRQ %d), aborting.\n",
845 dev->pdev->irq);
846 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
847 }
848
849 goto err_cmd_poll;
850 }
851
852 mthca_dbg(dev, "NOP command IRQ test passed\n");
853
854 err = mthca_init_cq_table(dev);
855 if (err) {
856 mthca_err(dev, "Failed to initialize "
857 "completion queue table, aborting.\n");
858 goto err_cmd_poll;
859 }
860
861 err = mthca_init_srq_table(dev);
862 if (err) {
863 mthca_err(dev, "Failed to initialize "
864 "shared receive queue table, aborting.\n");
865 goto err_cq_table_free;
866 }
867
868 err = mthca_init_qp_table(dev);
869 if (err) {
870 mthca_err(dev, "Failed to initialize "
871 "queue pair table, aborting.\n");
872 goto err_srq_table_free;
873 }
874
875 err = mthca_init_av_table(dev);
876 if (err) {
877 mthca_err(dev, "Failed to initialize "
878 "address vector table, aborting.\n");
879 goto err_qp_table_free;
880 }
881
882 err = mthca_init_mcg_table(dev);
883 if (err) {
884 mthca_err(dev, "Failed to initialize "
885 "multicast group table, aborting.\n");
886 goto err_av_table_free;
887 }
888
889 return 0;
890
891 err_av_table_free:
892 mthca_cleanup_av_table(dev);
893
894 err_qp_table_free:
895 mthca_cleanup_qp_table(dev);
896
897 err_srq_table_free:
898 mthca_cleanup_srq_table(dev);
899
900 err_cq_table_free:
901 mthca_cleanup_cq_table(dev);
902
903 err_cmd_poll:
904 mthca_cmd_use_polling(dev);
905
906 err_eq_table_free:
907 mthca_cleanup_eq_table(dev);
908
909 err_pd_free:
910 mthca_pd_free(dev, &dev->driver_pd);
911
912 err_mr_table_free:
913 mthca_cleanup_mr_table(dev);
914
915 err_pd_table_free:
916 mthca_cleanup_pd_table(dev);
917
918 err_kar_unmap:
919 iounmap(dev->kar);
920
921 err_uar_free:
922 mthca_uar_free(dev, &dev->driver_uar);
923
924 err_uar_table_free:
925 mthca_cleanup_uar_table(dev);
926 return err;
927 }
928
929 static int mthca_enable_msi_x(struct mthca_dev *mdev)
930 {
931 struct msix_entry entries[3];
932 int err;
933
934 entries[0].entry = 0;
935 entries[1].entry = 1;
936 entries[2].entry = 2;
937
938 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
939 if (err) {
940 if (err > 0)
941 mthca_info(mdev, "Only %d MSI-X vectors available, "
942 "not using MSI-X\n", err);
943 return err;
944 }
945
946 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
947 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
948 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
949
950 return 0;
951 }
952
953 /* Types of supported HCA */
954 enum {
955 TAVOR, /* MT23108 */
956 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
957 ARBEL_NATIVE, /* MT25208 with extended features */
958 SINAI /* MT25204 */
959 };
960
961 #define MTHCA_FW_VER(major, minor, subminor) \
962 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
963
964 static struct {
965 u64 latest_fw;
966 u32 flags;
967 } mthca_hca_table[] = {
968 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
969 .flags = 0 },
970 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
971 .flags = MTHCA_FLAG_PCIE },
972 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
973 .flags = MTHCA_FLAG_MEMFREE |
974 MTHCA_FLAG_PCIE },
975 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
976 .flags = MTHCA_FLAG_MEMFREE |
977 MTHCA_FLAG_PCIE |
978 MTHCA_FLAG_SINAI_OPT }
979 };
980
981 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
982 {
983 int ddr_hidden = 0;
984 int err;
985 struct mthca_dev *mdev;
986
987 printk(KERN_INFO PFX "Initializing %s\n",
988 pci_name(pdev));
989
990 err = pci_enable_device(pdev);
991 if (err) {
992 dev_err(&pdev->dev, "Cannot enable PCI device, "
993 "aborting.\n");
994 return err;
995 }
996
997 /*
998 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
999 * be present)
1000 */
1001 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1002 pci_resource_len(pdev, 0) != 1 << 20) {
1003 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1004 err = -ENODEV;
1005 goto err_disable_pdev;
1006 }
1007 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1008 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1009 err = -ENODEV;
1010 goto err_disable_pdev;
1011 }
1012 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1013 ddr_hidden = 1;
1014
1015 err = pci_request_regions(pdev, DRV_NAME);
1016 if (err) {
1017 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1018 "aborting.\n");
1019 goto err_disable_pdev;
1020 }
1021
1022 pci_set_master(pdev);
1023
1024 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1025 if (err) {
1026 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1027 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1028 if (err) {
1029 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1030 goto err_free_res;
1031 }
1032 }
1033 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1034 if (err) {
1035 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1036 "consistent PCI DMA mask.\n");
1037 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1038 if (err) {
1039 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1040 "aborting.\n");
1041 goto err_free_res;
1042 }
1043 }
1044
1045 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1046 if (!mdev) {
1047 dev_err(&pdev->dev, "Device struct alloc failed, "
1048 "aborting.\n");
1049 err = -ENOMEM;
1050 goto err_free_res;
1051 }
1052
1053 mdev->pdev = pdev;
1054
1055 mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1056 if (ddr_hidden)
1057 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1058
1059 /*
1060 * Now reset the HCA before we touch the PCI capabilities or
1061 * attempt a firmware command, since a boot ROM may have left
1062 * the HCA in an undefined state.
1063 */
1064 err = mthca_reset(mdev);
1065 if (err) {
1066 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1067 goto err_free_dev;
1068 }
1069
1070 if (mthca_cmd_init(mdev)) {
1071 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1072 goto err_free_dev;
1073 }
1074
1075 err = mthca_tune_pci(mdev);
1076 if (err)
1077 goto err_cmd;
1078
1079 err = mthca_init_hca(mdev);
1080 if (err)
1081 goto err_cmd;
1082
1083 if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1084 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1085 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1086 (int) (mdev->fw_ver & 0xffff),
1087 (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1088 (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1089 (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1090 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1091 }
1092
1093 if (msi_x && !mthca_enable_msi_x(mdev))
1094 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1095
1096 err = mthca_setup_hca(mdev);
1097 if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1098 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1099 pci_disable_msix(pdev);
1100 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1101
1102 err = mthca_setup_hca(mdev);
1103 }
1104
1105 if (err)
1106 goto err_close;
1107
1108 err = mthca_register_device(mdev);
1109 if (err)
1110 goto err_cleanup;
1111
1112 err = mthca_create_agents(mdev);
1113 if (err)
1114 goto err_unregister;
1115
1116 pci_set_drvdata(pdev, mdev);
1117 mdev->hca_type = hca_type;
1118
1119 return 0;
1120
1121 err_unregister:
1122 mthca_unregister_device(mdev);
1123
1124 err_cleanup:
1125 mthca_cleanup_mcg_table(mdev);
1126 mthca_cleanup_av_table(mdev);
1127 mthca_cleanup_qp_table(mdev);
1128 mthca_cleanup_srq_table(mdev);
1129 mthca_cleanup_cq_table(mdev);
1130 mthca_cmd_use_polling(mdev);
1131 mthca_cleanup_eq_table(mdev);
1132
1133 mthca_pd_free(mdev, &mdev->driver_pd);
1134
1135 mthca_cleanup_mr_table(mdev);
1136 mthca_cleanup_pd_table(mdev);
1137 mthca_cleanup_uar_table(mdev);
1138
1139 err_close:
1140 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1141 pci_disable_msix(pdev);
1142
1143 mthca_close_hca(mdev);
1144
1145 err_cmd:
1146 mthca_cmd_cleanup(mdev);
1147
1148 err_free_dev:
1149 ib_dealloc_device(&mdev->ib_dev);
1150
1151 err_free_res:
1152 pci_release_regions(pdev);
1153
1154 err_disable_pdev:
1155 pci_disable_device(pdev);
1156 pci_set_drvdata(pdev, NULL);
1157 return err;
1158 }
1159
1160 static void __mthca_remove_one(struct pci_dev *pdev)
1161 {
1162 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1163 u8 status;
1164 int p;
1165
1166 if (mdev) {
1167 mthca_free_agents(mdev);
1168 mthca_unregister_device(mdev);
1169
1170 for (p = 1; p <= mdev->limits.num_ports; ++p)
1171 mthca_CLOSE_IB(mdev, p, &status);
1172
1173 mthca_cleanup_mcg_table(mdev);
1174 mthca_cleanup_av_table(mdev);
1175 mthca_cleanup_qp_table(mdev);
1176 mthca_cleanup_srq_table(mdev);
1177 mthca_cleanup_cq_table(mdev);
1178 mthca_cmd_use_polling(mdev);
1179 mthca_cleanup_eq_table(mdev);
1180
1181 mthca_pd_free(mdev, &mdev->driver_pd);
1182
1183 mthca_cleanup_mr_table(mdev);
1184 mthca_cleanup_pd_table(mdev);
1185
1186 iounmap(mdev->kar);
1187 mthca_uar_free(mdev, &mdev->driver_uar);
1188 mthca_cleanup_uar_table(mdev);
1189 mthca_close_hca(mdev);
1190 mthca_cmd_cleanup(mdev);
1191
1192 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1193 pci_disable_msix(pdev);
1194
1195 ib_dealloc_device(&mdev->ib_dev);
1196 pci_release_regions(pdev);
1197 pci_disable_device(pdev);
1198 pci_set_drvdata(pdev, NULL);
1199 }
1200 }
1201
1202 int __mthca_restart_one(struct pci_dev *pdev)
1203 {
1204 struct mthca_dev *mdev;
1205 int hca_type;
1206
1207 mdev = pci_get_drvdata(pdev);
1208 if (!mdev)
1209 return -ENODEV;
1210 hca_type = mdev->hca_type;
1211 __mthca_remove_one(pdev);
1212 return __mthca_init_one(pdev, hca_type);
1213 }
1214
1215 static int __devinit mthca_init_one(struct pci_dev *pdev,
1216 const struct pci_device_id *id)
1217 {
1218 static int mthca_version_printed = 0;
1219 int ret;
1220
1221 mutex_lock(&mthca_device_mutex);
1222
1223 if (!mthca_version_printed) {
1224 printk(KERN_INFO "%s", mthca_version);
1225 ++mthca_version_printed;
1226 }
1227
1228 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1229 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1230 pci_name(pdev), id->driver_data);
1231 mutex_unlock(&mthca_device_mutex);
1232 return -ENODEV;
1233 }
1234
1235 ret = __mthca_init_one(pdev, id->driver_data);
1236
1237 mutex_unlock(&mthca_device_mutex);
1238
1239 return ret;
1240 }
1241
1242 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1243 {
1244 mutex_lock(&mthca_device_mutex);
1245 __mthca_remove_one(pdev);
1246 mutex_unlock(&mthca_device_mutex);
1247 }
1248
1249 static struct pci_device_id mthca_pci_table[] = {
1250 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1251 .driver_data = TAVOR },
1252 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1253 .driver_data = TAVOR },
1254 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1255 .driver_data = ARBEL_COMPAT },
1256 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1257 .driver_data = ARBEL_COMPAT },
1258 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1259 .driver_data = ARBEL_NATIVE },
1260 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1261 .driver_data = ARBEL_NATIVE },
1262 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1263 .driver_data = SINAI },
1264 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1265 .driver_data = SINAI },
1266 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1267 .driver_data = SINAI },
1268 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1269 .driver_data = SINAI },
1270 { 0, }
1271 };
1272
1273 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1274
1275 static struct pci_driver mthca_driver = {
1276 .name = DRV_NAME,
1277 .id_table = mthca_pci_table,
1278 .probe = mthca_init_one,
1279 .remove = __devexit_p(mthca_remove_one)
1280 };
1281
1282 static void __init __mthca_check_profile_val(const char *name, int *pval,
1283 int pval_default)
1284 {
1285 /* value must be positive and power of 2 */
1286 int old_pval = *pval;
1287
1288 if (old_pval <= 0)
1289 *pval = pval_default;
1290 else
1291 *pval = roundup_pow_of_two(old_pval);
1292
1293 if (old_pval != *pval) {
1294 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1295 old_pval, name);
1296 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1297 }
1298 }
1299
1300 #define mthca_check_profile_val(name, default) \
1301 __mthca_check_profile_val(#name, &hca_profile.name, default)
1302
1303 static void __init mthca_validate_profile(void)
1304 {
1305 mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP);
1306 mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP);
1307 mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ);
1308 mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG);
1309 mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT);
1310 mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT);
1311 mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV);
1312 mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1313
1314 if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1315 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1316 hca_profile.fmr_reserved_mtts);
1317 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1318 hca_profile.num_mtt);
1319 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1320 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1321 hca_profile.fmr_reserved_mtts);
1322 }
1323
1324 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
1325 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
1326 log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
1327 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
1328 }
1329 }
1330
1331 static int __init mthca_init(void)
1332 {
1333 int ret;
1334
1335 mthca_validate_profile();
1336
1337 ret = mthca_catas_init();
1338 if (ret)
1339 return ret;
1340
1341 ret = pci_register_driver(&mthca_driver);
1342 if (ret < 0) {
1343 mthca_catas_cleanup();
1344 return ret;
1345 }
1346
1347 return 0;
1348 }
1349
1350 static void __exit mthca_cleanup(void)
1351 {
1352 pci_unregister_driver(&mthca_driver);
1353 mthca_catas_cleanup();
1354 }
1355
1356 module_init(mthca_init);
1357 module_exit(mthca_cleanup);
Linux with added FPC-III support