Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/drivers/infiniband/hw/mthca/mthca_main.c

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

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