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 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/errno.h>
39 #include <linux/pci.h>
40 #include <linux/dma-mapping.h>
42 #include <linux/mlx4/device.h>
43 #include <linux/mlx4/doorbell.h>
49 MODULE_AUTHOR("Roland Dreier");
50 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
51 MODULE_LICENSE("Dual BSD/GPL");
52 MODULE_VERSION(DRV_VERSION
);
54 #ifdef CONFIG_MLX4_DEBUG
56 int mlx4_debug_level
= 0;
57 module_param_named(debug_level
, mlx4_debug_level
, int, 0644);
58 MODULE_PARM_DESC(debug_level
, "Enable debug tracing if > 0");
60 #endif /* CONFIG_MLX4_DEBUG */
65 module_param(msi_x
, int, 0444);
66 MODULE_PARM_DESC(msi_x
, "attempt to use MSI-X if nonzero");
68 #else /* CONFIG_PCI_MSI */
72 #endif /* CONFIG_PCI_MSI */
74 static const char mlx4_version
[] __devinitdata
=
75 DRV_NAME
": Mellanox ConnectX core driver v"
76 DRV_VERSION
" (" DRV_RELDATE
")\n";
78 static struct mlx4_profile default_profile
= {
88 static int __devinit
mlx4_dev_cap(struct mlx4_dev
*dev
, struct mlx4_dev_cap
*dev_cap
)
93 err
= mlx4_QUERY_DEV_CAP(dev
, dev_cap
);
95 mlx4_err(dev
, "QUERY_DEV_CAP command failed, aborting.\n");
99 if (dev_cap
->min_page_sz
> PAGE_SIZE
) {
100 mlx4_err(dev
, "HCA minimum page size of %d bigger than "
101 "kernel PAGE_SIZE of %ld, aborting.\n",
102 dev_cap
->min_page_sz
, PAGE_SIZE
);
105 if (dev_cap
->num_ports
> MLX4_MAX_PORTS
) {
106 mlx4_err(dev
, "HCA has %d ports, but we only support %d, "
108 dev_cap
->num_ports
, MLX4_MAX_PORTS
);
112 if (dev_cap
->uar_size
> pci_resource_len(dev
->pdev
, 2)) {
113 mlx4_err(dev
, "HCA reported UAR size of 0x%x bigger than "
114 "PCI resource 2 size of 0x%llx, aborting.\n",
116 (unsigned long long) pci_resource_len(dev
->pdev
, 2));
120 dev
->caps
.num_ports
= dev_cap
->num_ports
;
121 for (i
= 1; i
<= dev
->caps
.num_ports
; ++i
) {
122 dev
->caps
.vl_cap
[i
] = dev_cap
->max_vl
[i
];
123 dev
->caps
.mtu_cap
[i
] = dev_cap
->max_mtu
[i
];
124 dev
->caps
.gid_table_len
[i
] = dev_cap
->max_gids
[i
];
125 dev
->caps
.pkey_table_len
[i
] = dev_cap
->max_pkeys
[i
];
126 dev
->caps
.port_width_cap
[i
] = dev_cap
->max_port_width
[i
];
129 dev
->caps
.num_uars
= dev_cap
->uar_size
/ PAGE_SIZE
;
130 dev
->caps
.local_ca_ack_delay
= dev_cap
->local_ca_ack_delay
;
131 dev
->caps
.bf_reg_size
= dev_cap
->bf_reg_size
;
132 dev
->caps
.bf_regs_per_page
= dev_cap
->bf_regs_per_page
;
133 dev
->caps
.max_sq_sg
= dev_cap
->max_sq_sg
;
134 dev
->caps
.max_rq_sg
= dev_cap
->max_rq_sg
;
135 dev
->caps
.max_wqes
= dev_cap
->max_qp_sz
;
136 dev
->caps
.max_qp_init_rdma
= dev_cap
->max_requester_per_qp
;
137 dev
->caps
.reserved_qps
= dev_cap
->reserved_qps
;
138 dev
->caps
.max_srq_wqes
= dev_cap
->max_srq_sz
;
139 dev
->caps
.max_srq_sge
= dev_cap
->max_rq_sg
- 1;
140 dev
->caps
.reserved_srqs
= dev_cap
->reserved_srqs
;
141 dev
->caps
.max_sq_desc_sz
= dev_cap
->max_sq_desc_sz
;
142 dev
->caps
.max_rq_desc_sz
= dev_cap
->max_rq_desc_sz
;
143 dev
->caps
.num_qp_per_mgm
= MLX4_QP_PER_MGM
;
145 * Subtract 1 from the limit because we need to allocate a
146 * spare CQE so the HCA HW can tell the difference between an
147 * empty CQ and a full CQ.
149 dev
->caps
.max_cqes
= dev_cap
->max_cq_sz
- 1;
150 dev
->caps
.reserved_cqs
= dev_cap
->reserved_cqs
;
151 dev
->caps
.reserved_eqs
= dev_cap
->reserved_eqs
;
152 dev
->caps
.reserved_mtts
= dev_cap
->reserved_mtts
;
153 dev
->caps
.reserved_mrws
= dev_cap
->reserved_mrws
;
154 dev
->caps
.reserved_uars
= dev_cap
->reserved_uars
;
155 dev
->caps
.reserved_pds
= dev_cap
->reserved_pds
;
156 dev
->caps
.mtt_entry_sz
= MLX4_MTT_ENTRY_PER_SEG
* dev_cap
->mtt_entry_sz
;
157 dev
->caps
.page_size_cap
= ~(u32
) (dev_cap
->min_page_sz
- 1);
158 dev
->caps
.flags
= dev_cap
->flags
;
159 dev
->caps
.stat_rate_support
= dev_cap
->stat_rate_support
;
164 static int __devinit
mlx4_load_fw(struct mlx4_dev
*dev
)
166 struct mlx4_priv
*priv
= mlx4_priv(dev
);
169 priv
->fw
.fw_icm
= mlx4_alloc_icm(dev
, priv
->fw
.fw_pages
,
170 GFP_HIGHUSER
| __GFP_NOWARN
);
171 if (!priv
->fw
.fw_icm
) {
172 mlx4_err(dev
, "Couldn't allocate FW area, aborting.\n");
176 err
= mlx4_MAP_FA(dev
, priv
->fw
.fw_icm
);
178 mlx4_err(dev
, "MAP_FA command failed, aborting.\n");
182 err
= mlx4_RUN_FW(dev
);
184 mlx4_err(dev
, "RUN_FW command failed, aborting.\n");
194 mlx4_free_icm(dev
, priv
->fw
.fw_icm
);
198 static int __devinit
mlx4_init_cmpt_table(struct mlx4_dev
*dev
, u64 cmpt_base
,
201 struct mlx4_priv
*priv
= mlx4_priv(dev
);
204 err
= mlx4_init_icm_table(dev
, &priv
->qp_table
.cmpt_table
,
206 ((u64
) (MLX4_CMPT_TYPE_QP
*
207 cmpt_entry_sz
) << MLX4_CMPT_SHIFT
),
208 cmpt_entry_sz
, dev
->caps
.num_qps
,
209 dev
->caps
.reserved_qps
, 0);
213 err
= mlx4_init_icm_table(dev
, &priv
->srq_table
.cmpt_table
,
215 ((u64
) (MLX4_CMPT_TYPE_SRQ
*
216 cmpt_entry_sz
) << MLX4_CMPT_SHIFT
),
217 cmpt_entry_sz
, dev
->caps
.num_srqs
,
218 dev
->caps
.reserved_srqs
, 0);
222 err
= mlx4_init_icm_table(dev
, &priv
->cq_table
.cmpt_table
,
224 ((u64
) (MLX4_CMPT_TYPE_CQ
*
225 cmpt_entry_sz
) << MLX4_CMPT_SHIFT
),
226 cmpt_entry_sz
, dev
->caps
.num_cqs
,
227 dev
->caps
.reserved_cqs
, 0);
231 err
= mlx4_init_icm_table(dev
, &priv
->eq_table
.cmpt_table
,
233 ((u64
) (MLX4_CMPT_TYPE_EQ
*
234 cmpt_entry_sz
) << MLX4_CMPT_SHIFT
),
236 roundup_pow_of_two(MLX4_NUM_EQ
+
237 dev
->caps
.reserved_eqs
),
238 MLX4_NUM_EQ
+ dev
->caps
.reserved_eqs
, 0);
245 mlx4_cleanup_icm_table(dev
, &priv
->cq_table
.cmpt_table
);
248 mlx4_cleanup_icm_table(dev
, &priv
->srq_table
.cmpt_table
);
251 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.cmpt_table
);
257 static int __devinit
mlx4_init_icm(struct mlx4_dev
*dev
,
258 struct mlx4_dev_cap
*dev_cap
,
259 struct mlx4_init_hca_param
*init_hca
,
262 struct mlx4_priv
*priv
= mlx4_priv(dev
);
266 err
= mlx4_SET_ICM_SIZE(dev
, icm_size
, &aux_pages
);
268 mlx4_err(dev
, "SET_ICM_SIZE command failed, aborting.\n");
272 mlx4_dbg(dev
, "%lld KB of HCA context requires %lld KB aux memory.\n",
273 (unsigned long long) icm_size
>> 10,
274 (unsigned long long) aux_pages
<< 2);
276 priv
->fw
.aux_icm
= mlx4_alloc_icm(dev
, aux_pages
,
277 GFP_HIGHUSER
| __GFP_NOWARN
);
278 if (!priv
->fw
.aux_icm
) {
279 mlx4_err(dev
, "Couldn't allocate aux memory, aborting.\n");
283 err
= mlx4_MAP_ICM_AUX(dev
, priv
->fw
.aux_icm
);
285 mlx4_err(dev
, "MAP_ICM_AUX command failed, aborting.\n");
289 err
= mlx4_init_cmpt_table(dev
, init_hca
->cmpt_base
, dev_cap
->cmpt_entry_sz
);
291 mlx4_err(dev
, "Failed to map cMPT context memory, aborting.\n");
295 err
= mlx4_map_eq_icm(dev
, init_hca
->eqc_base
);
297 mlx4_err(dev
, "Failed to map EQ context memory, aborting.\n");
301 err
= mlx4_init_icm_table(dev
, &priv
->mr_table
.mtt_table
,
303 dev
->caps
.mtt_entry_sz
,
304 dev
->caps
.num_mtt_segs
,
305 dev
->caps
.reserved_mtts
, 1);
307 mlx4_err(dev
, "Failed to map MTT context memory, aborting.\n");
311 err
= mlx4_init_icm_table(dev
, &priv
->mr_table
.dmpt_table
,
313 dev_cap
->dmpt_entry_sz
,
315 dev
->caps
.reserved_mrws
, 1);
317 mlx4_err(dev
, "Failed to map dMPT context memory, aborting.\n");
321 err
= mlx4_init_icm_table(dev
, &priv
->qp_table
.qp_table
,
323 dev_cap
->qpc_entry_sz
,
325 dev
->caps
.reserved_qps
, 0);
327 mlx4_err(dev
, "Failed to map QP context memory, aborting.\n");
331 err
= mlx4_init_icm_table(dev
, &priv
->qp_table
.auxc_table
,
333 dev_cap
->aux_entry_sz
,
335 dev
->caps
.reserved_qps
, 0);
337 mlx4_err(dev
, "Failed to map AUXC context memory, aborting.\n");
341 err
= mlx4_init_icm_table(dev
, &priv
->qp_table
.altc_table
,
343 dev_cap
->altc_entry_sz
,
345 dev
->caps
.reserved_qps
, 0);
347 mlx4_err(dev
, "Failed to map ALTC context memory, aborting.\n");
351 err
= mlx4_init_icm_table(dev
, &priv
->qp_table
.rdmarc_table
,
352 init_hca
->rdmarc_base
,
353 dev_cap
->rdmarc_entry_sz
<< priv
->qp_table
.rdmarc_shift
,
355 dev
->caps
.reserved_qps
, 0);
357 mlx4_err(dev
, "Failed to map RDMARC context memory, aborting\n");
361 err
= mlx4_init_icm_table(dev
, &priv
->cq_table
.table
,
363 dev_cap
->cqc_entry_sz
,
365 dev
->caps
.reserved_cqs
, 0);
367 mlx4_err(dev
, "Failed to map CQ context memory, aborting.\n");
368 goto err_unmap_rdmarc
;
371 err
= mlx4_init_icm_table(dev
, &priv
->srq_table
.table
,
373 dev_cap
->srq_entry_sz
,
375 dev
->caps
.reserved_srqs
, 0);
377 mlx4_err(dev
, "Failed to map SRQ context memory, aborting.\n");
382 * It's not strictly required, but for simplicity just map the
383 * whole multicast group table now. The table isn't very big
384 * and it's a lot easier than trying to track ref counts.
386 err
= mlx4_init_icm_table(dev
, &priv
->mcg_table
.table
,
387 init_hca
->mc_base
, MLX4_MGM_ENTRY_SIZE
,
388 dev
->caps
.num_mgms
+ dev
->caps
.num_amgms
,
389 dev
->caps
.num_mgms
+ dev
->caps
.num_amgms
,
392 mlx4_err(dev
, "Failed to map MCG context memory, aborting.\n");
399 mlx4_cleanup_icm_table(dev
, &priv
->srq_table
.table
);
402 mlx4_cleanup_icm_table(dev
, &priv
->cq_table
.table
);
405 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.rdmarc_table
);
408 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.altc_table
);
411 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.auxc_table
);
414 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.qp_table
);
417 mlx4_cleanup_icm_table(dev
, &priv
->mr_table
.dmpt_table
);
420 mlx4_cleanup_icm_table(dev
, &priv
->mr_table
.mtt_table
);
423 mlx4_unmap_eq_icm(dev
);
426 mlx4_cleanup_icm_table(dev
, &priv
->eq_table
.cmpt_table
);
427 mlx4_cleanup_icm_table(dev
, &priv
->cq_table
.cmpt_table
);
428 mlx4_cleanup_icm_table(dev
, &priv
->srq_table
.cmpt_table
);
429 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.cmpt_table
);
432 mlx4_UNMAP_ICM_AUX(dev
);
435 mlx4_free_icm(dev
, priv
->fw
.aux_icm
);
440 static void mlx4_free_icms(struct mlx4_dev
*dev
)
442 struct mlx4_priv
*priv
= mlx4_priv(dev
);
444 mlx4_cleanup_icm_table(dev
, &priv
->mcg_table
.table
);
445 mlx4_cleanup_icm_table(dev
, &priv
->srq_table
.table
);
446 mlx4_cleanup_icm_table(dev
, &priv
->cq_table
.table
);
447 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.rdmarc_table
);
448 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.altc_table
);
449 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.auxc_table
);
450 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.qp_table
);
451 mlx4_cleanup_icm_table(dev
, &priv
->mr_table
.dmpt_table
);
452 mlx4_cleanup_icm_table(dev
, &priv
->mr_table
.mtt_table
);
453 mlx4_cleanup_icm_table(dev
, &priv
->eq_table
.cmpt_table
);
454 mlx4_cleanup_icm_table(dev
, &priv
->cq_table
.cmpt_table
);
455 mlx4_cleanup_icm_table(dev
, &priv
->srq_table
.cmpt_table
);
456 mlx4_cleanup_icm_table(dev
, &priv
->qp_table
.cmpt_table
);
457 mlx4_unmap_eq_icm(dev
);
459 mlx4_UNMAP_ICM_AUX(dev
);
460 mlx4_free_icm(dev
, priv
->fw
.aux_icm
);
463 static void mlx4_close_hca(struct mlx4_dev
*dev
)
465 mlx4_CLOSE_HCA(dev
, 0);
468 mlx4_free_icm(dev
, mlx4_priv(dev
)->fw
.fw_icm
);
471 static int __devinit
mlx4_init_hca(struct mlx4_dev
*dev
)
473 struct mlx4_priv
*priv
= mlx4_priv(dev
);
474 struct mlx4_adapter adapter
;
475 struct mlx4_dev_cap dev_cap
;
476 struct mlx4_profile profile
;
477 struct mlx4_init_hca_param init_hca
;
481 err
= mlx4_QUERY_FW(dev
);
483 mlx4_err(dev
, "QUERY_FW command failed, aborting.\n");
487 err
= mlx4_load_fw(dev
);
489 mlx4_err(dev
, "Failed to start FW, aborting.\n");
493 err
= mlx4_dev_cap(dev
, &dev_cap
);
495 mlx4_err(dev
, "QUERY_DEV_CAP command failed, aborting.\n");
499 profile
= default_profile
;
501 icm_size
= mlx4_make_profile(dev
, &profile
, &dev_cap
, &init_hca
);
502 if ((long long) icm_size
< 0) {
507 init_hca
.log_uar_sz
= ilog2(dev
->caps
.num_uars
);
509 err
= mlx4_init_icm(dev
, &dev_cap
, &init_hca
, icm_size
);
513 err
= mlx4_INIT_HCA(dev
, &init_hca
);
515 mlx4_err(dev
, "INIT_HCA command failed, aborting.\n");
519 err
= mlx4_QUERY_ADAPTER(dev
, &adapter
);
521 mlx4_err(dev
, "QUERY_ADAPTER command failed, aborting.\n");
525 priv
->eq_table
.inta_pin
= adapter
.inta_pin
;
526 priv
->rev_id
= adapter
.revision_id
;
527 memcpy(priv
->board_id
, adapter
.board_id
, sizeof priv
->board_id
);
539 mlx4_free_icm(dev
, priv
->fw
.fw_icm
);
544 static int __devinit
mlx4_setup_hca(struct mlx4_dev
*dev
)
546 struct mlx4_priv
*priv
= mlx4_priv(dev
);
549 err
= mlx4_init_uar_table(dev
);
551 mlx4_err(dev
, "Failed to initialize "
552 "user access region table, aborting.\n");
556 err
= mlx4_uar_alloc(dev
, &priv
->driver_uar
);
558 mlx4_err(dev
, "Failed to allocate driver access region, "
560 goto err_uar_table_free
;
563 priv
->kar
= ioremap(priv
->driver_uar
.pfn
<< PAGE_SHIFT
, PAGE_SIZE
);
565 mlx4_err(dev
, "Couldn't map kernel access region, "
571 err
= mlx4_init_pd_table(dev
);
573 mlx4_err(dev
, "Failed to initialize "
574 "protection domain table, aborting.\n");
578 err
= mlx4_init_mr_table(dev
);
580 mlx4_err(dev
, "Failed to initialize "
581 "memory region table, aborting.\n");
582 goto err_pd_table_free
;
585 mlx4_map_catas_buf(dev
);
587 err
= mlx4_init_eq_table(dev
);
589 mlx4_err(dev
, "Failed to initialize "
590 "event queue table, aborting.\n");
594 err
= mlx4_cmd_use_events(dev
);
596 mlx4_err(dev
, "Failed to switch to event-driven "
597 "firmware commands, aborting.\n");
598 goto err_eq_table_free
;
603 mlx4_err(dev
, "NOP command failed to generate interrupt "
604 "(IRQ %d), aborting.\n",
605 priv
->eq_table
.eq
[MLX4_EQ_ASYNC
].irq
);
606 if (dev
->flags
& MLX4_FLAG_MSI_X
)
607 mlx4_err(dev
, "Try again with MSI-X disabled.\n");
609 mlx4_err(dev
, "BIOS or ACPI interrupt routing problem?\n");
614 mlx4_dbg(dev
, "NOP command IRQ test passed\n");
616 err
= mlx4_init_cq_table(dev
);
618 mlx4_err(dev
, "Failed to initialize "
619 "completion queue table, aborting.\n");
623 err
= mlx4_init_srq_table(dev
);
625 mlx4_err(dev
, "Failed to initialize "
626 "shared receive queue table, aborting.\n");
627 goto err_cq_table_free
;
630 err
= mlx4_init_qp_table(dev
);
632 mlx4_err(dev
, "Failed to initialize "
633 "queue pair table, aborting.\n");
634 goto err_srq_table_free
;
637 err
= mlx4_init_mcg_table(dev
);
639 mlx4_err(dev
, "Failed to initialize "
640 "multicast group table, aborting.\n");
641 goto err_qp_table_free
;
647 mlx4_cleanup_qp_table(dev
);
650 mlx4_cleanup_srq_table(dev
);
653 mlx4_cleanup_cq_table(dev
);
656 mlx4_cmd_use_polling(dev
);
659 mlx4_cleanup_eq_table(dev
);
662 mlx4_unmap_catas_buf(dev
);
663 mlx4_cleanup_mr_table(dev
);
666 mlx4_cleanup_pd_table(dev
);
672 mlx4_uar_free(dev
, &priv
->driver_uar
);
675 mlx4_cleanup_uar_table(dev
);
679 static void __devinit
mlx4_enable_msi_x(struct mlx4_dev
*dev
)
681 struct mlx4_priv
*priv
= mlx4_priv(dev
);
682 struct msix_entry entries
[MLX4_NUM_EQ
];
687 for (i
= 0; i
< MLX4_NUM_EQ
; ++i
)
688 entries
[i
].entry
= i
;
690 err
= pci_enable_msix(dev
->pdev
, entries
, ARRAY_SIZE(entries
));
693 mlx4_info(dev
, "Only %d MSI-X vectors available, "
694 "not using MSI-X\n", err
);
698 for (i
= 0; i
< MLX4_NUM_EQ
; ++i
)
699 priv
->eq_table
.eq
[i
].irq
= entries
[i
].vector
;
701 dev
->flags
|= MLX4_FLAG_MSI_X
;
706 for (i
= 0; i
< MLX4_NUM_EQ
; ++i
)
707 priv
->eq_table
.eq
[i
].irq
= dev
->pdev
->irq
;
710 static int __devinit
mlx4_init_one(struct pci_dev
*pdev
,
711 const struct pci_device_id
*id
)
713 static int mlx4_version_printed
;
714 struct mlx4_priv
*priv
;
715 struct mlx4_dev
*dev
;
718 if (!mlx4_version_printed
) {
719 printk(KERN_INFO
"%s", mlx4_version
);
720 ++mlx4_version_printed
;
723 printk(KERN_INFO PFX
"Initializing %s\n",
726 err
= pci_enable_device(pdev
);
728 dev_err(&pdev
->dev
, "Cannot enable PCI device, "
734 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
737 if (!(pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
) ||
738 pci_resource_len(pdev
, 0) != 1 << 20) {
739 dev_err(&pdev
->dev
, "Missing DCS, aborting.\n");
741 goto err_disable_pdev
;
743 if (!(pci_resource_flags(pdev
, 2) & IORESOURCE_MEM
)) {
744 dev_err(&pdev
->dev
, "Missing UAR, aborting.\n");
746 goto err_disable_pdev
;
749 err
= pci_request_region(pdev
, 0, DRV_NAME
);
751 dev_err(&pdev
->dev
, "Cannot request control region, aborting.\n");
752 goto err_disable_pdev
;
755 err
= pci_request_region(pdev
, 2, DRV_NAME
);
757 dev_err(&pdev
->dev
, "Cannot request UAR region, aborting.\n");
758 goto err_release_bar0
;
761 pci_set_master(pdev
);
763 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
765 dev_warn(&pdev
->dev
, "Warning: couldn't set 64-bit PCI DMA mask.\n");
766 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
768 dev_err(&pdev
->dev
, "Can't set PCI DMA mask, aborting.\n");
769 goto err_release_bar2
;
772 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
774 dev_warn(&pdev
->dev
, "Warning: couldn't set 64-bit "
775 "consistent PCI DMA mask.\n");
776 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
778 dev_err(&pdev
->dev
, "Can't set consistent PCI DMA mask, "
780 goto err_release_bar2
;
784 priv
= kzalloc(sizeof *priv
, GFP_KERNEL
);
786 dev_err(&pdev
->dev
, "Device struct alloc failed, "
789 goto err_release_bar2
;
794 INIT_LIST_HEAD(&priv
->ctx_list
);
795 spin_lock_init(&priv
->ctx_lock
);
798 * Now reset the HCA before we touch the PCI capabilities or
799 * attempt a firmware command, since a boot ROM may have left
800 * the HCA in an undefined state.
802 err
= mlx4_reset(dev
);
804 mlx4_err(dev
, "Failed to reset HCA, aborting.\n");
808 mlx4_enable_msi_x(dev
);
810 if (mlx4_cmd_init(dev
)) {
811 mlx4_err(dev
, "Failed to init command interface, aborting.\n");
815 err
= mlx4_init_hca(dev
);
819 err
= mlx4_setup_hca(dev
);
823 err
= mlx4_register_device(dev
);
827 pci_set_drvdata(pdev
, dev
);
832 mlx4_cleanup_mcg_table(dev
);
833 mlx4_cleanup_qp_table(dev
);
834 mlx4_cleanup_srq_table(dev
);
835 mlx4_cleanup_cq_table(dev
);
836 mlx4_cmd_use_polling(dev
);
837 mlx4_cleanup_eq_table(dev
);
839 mlx4_unmap_catas_buf(dev
);
841 mlx4_cleanup_mr_table(dev
);
842 mlx4_cleanup_pd_table(dev
);
843 mlx4_cleanup_uar_table(dev
);
849 mlx4_cmd_cleanup(dev
);
852 if (dev
->flags
& MLX4_FLAG_MSI_X
)
853 pci_disable_msix(pdev
);
858 pci_release_region(pdev
, 2);
861 pci_release_region(pdev
, 0);
864 pci_disable_device(pdev
);
865 pci_set_drvdata(pdev
, NULL
);
869 static void __devexit
mlx4_remove_one(struct pci_dev
*pdev
)
871 struct mlx4_dev
*dev
= pci_get_drvdata(pdev
);
872 struct mlx4_priv
*priv
= mlx4_priv(dev
);
876 mlx4_unregister_device(dev
);
878 for (p
= 1; p
<= dev
->caps
.num_ports
; ++p
)
879 mlx4_CLOSE_PORT(dev
, p
);
881 mlx4_cleanup_mcg_table(dev
);
882 mlx4_cleanup_qp_table(dev
);
883 mlx4_cleanup_srq_table(dev
);
884 mlx4_cleanup_cq_table(dev
);
885 mlx4_cmd_use_polling(dev
);
886 mlx4_cleanup_eq_table(dev
);
888 mlx4_unmap_catas_buf(dev
);
890 mlx4_cleanup_mr_table(dev
);
891 mlx4_cleanup_pd_table(dev
);
894 mlx4_uar_free(dev
, &priv
->driver_uar
);
895 mlx4_cleanup_uar_table(dev
);
897 mlx4_cmd_cleanup(dev
);
899 if (dev
->flags
& MLX4_FLAG_MSI_X
)
900 pci_disable_msix(pdev
);
903 pci_release_region(pdev
, 2);
904 pci_release_region(pdev
, 0);
905 pci_disable_device(pdev
);
906 pci_set_drvdata(pdev
, NULL
);
910 static struct pci_device_id mlx4_pci_table
[] = {
911 { PCI_VDEVICE(MELLANOX
, 0x6340) }, /* MT25408 "Hermon" SDR */
912 { PCI_VDEVICE(MELLANOX
, 0x634a) }, /* MT25408 "Hermon" DDR */
913 { PCI_VDEVICE(MELLANOX
, 0x6354) }, /* MT25408 "Hermon" QDR */
917 MODULE_DEVICE_TABLE(pci
, mlx4_pci_table
);
919 static struct pci_driver mlx4_driver
= {
921 .id_table
= mlx4_pci_table
,
922 .probe
= mlx4_init_one
,
923 .remove
= __devexit_p(mlx4_remove_one
)
926 static int __init
mlx4_init(void)
930 ret
= pci_register_driver(&mlx4_driver
);
931 return ret
< 0 ? ret
: 0;
934 static void __exit
mlx4_cleanup(void)
936 pci_unregister_driver(&mlx4_driver
);
939 module_init(mlx4_init
);
940 module_exit(mlx4_cleanup
);