2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
35 #include <linux/config.h>
36 #include <linux/version.h>
37 #include <linux/module.h>
38 #include <linux/init.h>
39 #include <linux/errno.h>
40 #include <linux/pci.h>
41 #include <linux/interrupt.h>
43 #include "mthca_dev.h"
44 #include "mthca_config_reg.h"
45 #include "mthca_cmd.h"
46 #include "mthca_profile.h"
47 #include "mthca_memfree.h"
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);
57 module_param(msi_x, int, 0444);
58 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
61 module_param(msi, int, 0444);
62 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
64 #else /* CONFIG_PCI_MSI */
69 #endif /* CONFIG_PCI_MSI */
71 static const char mthca_version[] __devinitdata =
72 "ib_mthca: Mellanox InfiniBand HCA driver v"
73 DRV_VERSION " (" DRV_RELDATE ")\n";
75 static struct mthca_profile default_profile = {
82 .num_udav = 1 << 15, /* Tavor only */
83 .uarc_size = 1 << 18, /* Arbel only */
86 static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
91 /* First try to max out Read Byte Count */
92 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
94 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
95 mthca_err(mdev, "Couldn't read PCI-X command register, "
99 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
100 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
101 mthca_err(mdev, "Couldn't write PCI-X command register, "
105 } else if (mdev->hca_type == TAVOR)
106 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
108 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
110 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
111 mthca_err(mdev, "Couldn't read PCI Express device control "
112 "register, aborting.\n");
115 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
116 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
117 mthca_err(mdev, "Couldn't write PCI Express device control "
118 "register, aborting.\n");
121 } else if (mdev->hca_type == ARBEL_NATIVE ||
122 mdev->hca_type == ARBEL_COMPAT)
123 mthca_info(mdev, "No PCI Express capability, "
124 "not setting Max Read Request Size.\n");
129 static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
134 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
136 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
140 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
141 "aborting.\n", status);
144 if (dev_lim->min_page_sz > PAGE_SIZE) {
145 mthca_err(mdev, "HCA minimum page size of %d bigger than "
146 "kernel PAGE_SIZE of %ld, aborting.\n",
147 dev_lim->min_page_sz, PAGE_SIZE);
150 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
151 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
153 dev_lim->num_ports, MTHCA_MAX_PORTS);
157 mdev->limits.num_ports = dev_lim->num_ports;
158 mdev->limits.vl_cap = dev_lim->max_vl;
159 mdev->limits.mtu_cap = dev_lim->max_mtu;
160 mdev->limits.gid_table_len = dev_lim->max_gids;
161 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
162 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
163 mdev->limits.max_sg = dev_lim->max_sg;
164 mdev->limits.reserved_qps = dev_lim->reserved_qps;
165 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
166 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
167 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
168 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
169 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
170 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
171 mdev->limits.reserved_uars = dev_lim->reserved_uars;
172 mdev->limits.reserved_pds = dev_lim->reserved_pds;
174 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
175 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
180 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
184 struct mthca_dev_lim dev_lim;
185 struct mthca_profile profile;
186 struct mthca_init_hca_param init_hca;
187 struct mthca_adapter adapter;
189 err = mthca_SYS_EN(mdev, &status);
191 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
195 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
196 "aborting.\n", status);
200 err = mthca_QUERY_FW(mdev, &status);
202 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
206 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
207 "aborting.\n", status);
211 err = mthca_QUERY_DDR(mdev, &status);
213 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
217 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
218 "aborting.\n", status);
223 err = mthca_dev_lim(mdev, &dev_lim);
225 profile = default_profile;
226 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
227 profile.uarc_size = 0;
229 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
233 err = mthca_INIT_HCA(mdev, &init_hca, &status);
235 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
239 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
240 "aborting.\n", status);
245 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
247 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
251 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
252 "aborting.\n", status);
257 mdev->eq_table.inta_pin = adapter.inta_pin;
258 mdev->rev_id = adapter.revision_id;
263 mthca_CLOSE_HCA(mdev, 0, &status);
266 mthca_SYS_DIS(mdev, &status);
271 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
276 /* FIXME: use HCA-attached memory for FW if present */
278 mdev->fw.arbel.fw_icm =
279 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
280 GFP_HIGHUSER | __GFP_NOWARN);
281 if (!mdev->fw.arbel.fw_icm) {
282 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
286 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
288 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
292 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
296 err = mthca_RUN_FW(mdev, &status);
298 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
302 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
310 mthca_UNMAP_FA(mdev, &status);
313 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
317 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
318 struct mthca_dev_lim *dev_lim,
319 struct mthca_init_hca_param *init_hca,
326 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
328 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
332 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
333 "aborting.\n", status);
337 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
338 (unsigned long long) icm_size >> 10,
339 (unsigned long long) aux_pages << 2);
341 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
342 GFP_HIGHUSER | __GFP_NOWARN);
343 if (!mdev->fw.arbel.aux_icm) {
344 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
348 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
350 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
354 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
359 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
361 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
365 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
366 mdev->limits.num_mtt_segs *
367 init_hca->mtt_seg_sz,
368 mdev->limits.reserved_mtts *
369 init_hca->mtt_seg_sz, 1);
370 if (!mdev->mr_table.mtt_table) {
371 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
376 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
377 mdev->limits.num_mpts *
378 dev_lim->mpt_entry_sz,
379 mdev->limits.reserved_mrws *
380 dev_lim->mpt_entry_sz, 1);
381 if (!mdev->mr_table.mpt_table) {
382 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
387 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
388 mdev->limits.num_qps *
389 dev_lim->qpc_entry_sz,
390 mdev->limits.reserved_qps *
391 dev_lim->qpc_entry_sz, 1);
392 if (!mdev->qp_table.qp_table) {
393 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
398 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
399 mdev->limits.num_qps *
400 dev_lim->eqpc_entry_sz,
401 mdev->limits.reserved_qps *
402 dev_lim->eqpc_entry_sz, 1);
403 if (!mdev->qp_table.eqp_table) {
404 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
409 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
410 mdev->limits.num_cqs *
411 dev_lim->cqc_entry_sz,
412 mdev->limits.reserved_cqs *
413 dev_lim->cqc_entry_sz, 1);
414 if (!mdev->cq_table.table) {
415 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
423 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
426 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
429 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
432 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
435 mthca_unmap_eq_icm(mdev);
438 mthca_UNMAP_ICM_AUX(mdev, &status);
441 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
446 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
448 struct mthca_dev_lim dev_lim;
449 struct mthca_profile profile;
450 struct mthca_init_hca_param init_hca;
451 struct mthca_adapter adapter;
456 err = mthca_QUERY_FW(mdev, &status);
458 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
462 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
463 "aborting.\n", status);
467 err = mthca_ENABLE_LAM(mdev, &status);
469 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
472 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
473 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
474 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
476 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
477 "aborting.\n", status);
481 err = mthca_load_fw(mdev);
483 mthca_err(mdev, "Failed to start FW, aborting.\n");
487 err = mthca_dev_lim(mdev, &dev_lim);
489 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
493 profile = default_profile;
494 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
495 profile.num_udav = 0;
497 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
498 if ((int) icm_size < 0) {
503 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
507 err = mthca_INIT_HCA(mdev, &init_hca, &status);
509 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
513 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
514 "aborting.\n", status);
519 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
521 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
525 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
526 "aborting.\n", status);
531 mdev->eq_table.inta_pin = adapter.inta_pin;
532 mdev->rev_id = adapter.revision_id;
537 mthca_free_icm_table(mdev, mdev->cq_table.table);
538 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
539 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
540 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
541 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
542 mthca_unmap_eq_icm(mdev);
544 mthca_UNMAP_ICM_AUX(mdev, &status);
545 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
548 mthca_UNMAP_FA(mdev, &status);
549 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
552 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
553 mthca_DISABLE_LAM(mdev, &status);
558 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
560 if (mdev->hca_type == ARBEL_NATIVE)
561 return mthca_init_arbel(mdev);
563 return mthca_init_tavor(mdev);
566 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
571 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
573 err = mthca_init_pd_table(dev);
575 mthca_err(dev, "Failed to initialize "
576 "protection domain table, aborting.\n");
580 err = mthca_init_mr_table(dev);
582 mthca_err(dev, "Failed to initialize "
583 "memory region table, aborting.\n");
584 goto err_pd_table_free;
587 err = mthca_pd_alloc(dev, &dev->driver_pd);
589 mthca_err(dev, "Failed to create driver PD, "
591 goto err_mr_table_free;
594 if (dev->hca_type == ARBEL_NATIVE) {
595 mthca_warn(dev, "Sorry, native MT25208 mode support is not done, "
601 err = mthca_init_eq_table(dev);
603 mthca_err(dev, "Failed to initialize "
604 "event queue table, aborting.\n");
608 err = mthca_cmd_use_events(dev);
610 mthca_err(dev, "Failed to switch to event-driven "
611 "firmware commands, aborting.\n");
612 goto err_eq_table_free;
615 err = mthca_NOP(dev, &status);
617 mthca_err(dev, "NOP command failed to generate interrupt, aborting.\n");
618 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
619 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
621 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
625 mthca_dbg(dev, "NOP command IRQ test passed\n");
627 err = mthca_init_cq_table(dev);
629 mthca_err(dev, "Failed to initialize "
630 "completion queue table, aborting.\n");
634 err = mthca_init_qp_table(dev);
636 mthca_err(dev, "Failed to initialize "
637 "queue pair table, aborting.\n");
638 goto err_cq_table_free;
641 err = mthca_init_av_table(dev);
643 mthca_err(dev, "Failed to initialize "
644 "address vector table, aborting.\n");
645 goto err_qp_table_free;
648 err = mthca_init_mcg_table(dev);
650 mthca_err(dev, "Failed to initialize "
651 "multicast group table, aborting.\n");
652 goto err_av_table_free;
658 mthca_cleanup_av_table(dev);
661 mthca_cleanup_qp_table(dev);
664 mthca_cleanup_cq_table(dev);
667 mthca_cmd_use_polling(dev);
670 mthca_cleanup_eq_table(dev);
673 mthca_pd_free(dev, &dev->driver_pd);
676 mthca_cleanup_mr_table(dev);
679 mthca_cleanup_pd_table(dev);
683 static int __devinit mthca_request_regions(struct pci_dev *pdev,
689 * We request our first BAR in two chunks, since the MSI-X
690 * vector table is right in the middle.
692 * This is why we can't just use pci_request_regions() -- if
693 * we did then setting up MSI-X would fail, since the PCI core
694 * wants to do request_mem_region on the MSI-X vector table.
696 if (!request_mem_region(pci_resource_start(pdev, 0) +
704 if (!request_mem_region(pci_resource_start(pdev, 0) +
712 if (!request_mem_region(pci_resource_start(pdev, 0) +
721 err = pci_request_region(pdev, 2, DRV_NAME);
723 goto err_bar2_failed;
726 err = pci_request_region(pdev, 4, DRV_NAME);
728 goto err_bar4_failed;
735 pci_release_region(pdev, 2);
738 release_mem_region(pci_resource_start(pdev, 0) +
743 release_mem_region(pci_resource_start(pdev, 0) +
748 release_mem_region(pci_resource_start(pdev, 0) +
756 static void mthca_release_regions(struct pci_dev *pdev,
760 pci_release_region(pdev, 4);
762 pci_release_region(pdev, 2);
764 release_mem_region(pci_resource_start(pdev, 0) +
768 release_mem_region(pci_resource_start(pdev, 0) +
772 release_mem_region(pci_resource_start(pdev, 0) +
777 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
779 struct msix_entry entries[3];
782 entries[0].entry = 0;
783 entries[1].entry = 1;
784 entries[2].entry = 2;
786 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
789 mthca_info(mdev, "Only %d MSI-X vectors available, "
790 "not using MSI-X\n", err);
794 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
795 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
796 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
801 static void mthca_close_hca(struct mthca_dev *mdev)
805 mthca_CLOSE_HCA(mdev, 0, &status);
807 if (mdev->hca_type == ARBEL_NATIVE) {
808 mthca_free_icm_table(mdev, mdev->cq_table.table);
809 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
810 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
811 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
812 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
813 mthca_unmap_eq_icm(mdev);
815 mthca_UNMAP_ICM_AUX(mdev, &status);
816 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
818 mthca_UNMAP_FA(mdev, &status);
819 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
821 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
822 mthca_DISABLE_LAM(mdev, &status);
824 mthca_SYS_DIS(mdev, &status);
827 static int __devinit mthca_init_one(struct pci_dev *pdev,
828 const struct pci_device_id *id)
830 static int mthca_version_printed = 0;
833 unsigned long mthca_base;
834 struct mthca_dev *mdev;
836 if (!mthca_version_printed) {
837 printk(KERN_INFO "%s", mthca_version);
838 ++mthca_version_printed;
841 printk(KERN_INFO PFX "Initializing %s (%s)\n",
842 pci_pretty_name(pdev), pci_name(pdev));
844 err = pci_enable_device(pdev);
846 dev_err(&pdev->dev, "Cannot enable PCI device, "
852 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
855 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
856 pci_resource_len(pdev, 0) != 1 << 20) {
857 dev_err(&pdev->dev, "Missing DCS, aborting.");
859 goto err_disable_pdev;
861 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
862 pci_resource_len(pdev, 2) != 1 << 23) {
863 dev_err(&pdev->dev, "Missing UAR, aborting.");
865 goto err_disable_pdev;
867 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
870 err = mthca_request_regions(pdev, ddr_hidden);
872 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
874 goto err_disable_pdev;
877 pci_set_master(pdev);
879 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
881 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
882 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
884 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
888 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
890 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
891 "consistent PCI DMA mask.\n");
892 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
894 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
900 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
902 dev_err(&pdev->dev, "Device struct alloc failed, "
909 mdev->hca_type = id->driver_data;
912 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
915 * Now reset the HCA before we touch the PCI capabilities or
916 * attempt a firmware command, since a boot ROM may have left
917 * the HCA in an undefined state.
919 err = mthca_reset(mdev);
921 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
925 if (msi_x && !mthca_enable_msi_x(mdev))
926 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
927 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
928 !pci_enable_msi(pdev))
929 mdev->mthca_flags |= MTHCA_FLAG_MSI;
931 sema_init(&mdev->cmd.hcr_sem, 1);
932 sema_init(&mdev->cmd.poll_sem, 1);
933 mdev->cmd.use_events = 0;
935 mthca_base = pci_resource_start(pdev, 0);
936 mdev->hcr = ioremap(mthca_base + MTHCA_HCR_BASE, MTHCA_HCR_SIZE);
938 mthca_err(mdev, "Couldn't map command register, "
944 mdev->clr_base = ioremap(mthca_base + MTHCA_CLR_INT_BASE,
946 if (!mdev->clr_base) {
947 mthca_err(mdev, "Couldn't map interrupt clear register, "
953 mdev->ecr_base = ioremap(mthca_base + MTHCA_ECR_BASE,
954 MTHCA_ECR_SIZE + MTHCA_ECR_CLR_SIZE);
955 if (!mdev->ecr_base) {
956 mthca_err(mdev, "Couldn't map ecr register, "
959 goto err_iounmap_clr;
962 mthca_base = pci_resource_start(pdev, 2);
963 mdev->kar = ioremap(mthca_base + PAGE_SIZE * MTHCA_KAR_PAGE, PAGE_SIZE);
965 mthca_err(mdev, "Couldn't map kernel access region, "
968 goto err_iounmap_ecr;
971 err = mthca_tune_pci(mdev);
973 goto err_iounmap_kar;
975 err = mthca_init_hca(mdev);
977 goto err_iounmap_kar;
979 err = mthca_setup_hca(mdev);
983 err = mthca_register_device(mdev);
987 err = mthca_create_agents(mdev);
991 pci_set_drvdata(pdev, mdev);
996 mthca_unregister_device(mdev);
999 mthca_cleanup_mcg_table(mdev);
1000 mthca_cleanup_av_table(mdev);
1001 mthca_cleanup_qp_table(mdev);
1002 mthca_cleanup_cq_table(mdev);
1003 mthca_cmd_use_polling(mdev);
1004 mthca_cleanup_eq_table(mdev);
1006 mthca_pd_free(mdev, &mdev->driver_pd);
1008 mthca_cleanup_mr_table(mdev);
1009 mthca_cleanup_pd_table(mdev);
1012 mthca_close_hca(mdev);
1018 iounmap(mdev->ecr_base);
1021 iounmap(mdev->clr_base);
1027 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1028 pci_disable_msix(pdev);
1029 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1030 pci_disable_msi(pdev);
1032 ib_dealloc_device(&mdev->ib_dev);
1035 mthca_release_regions(pdev, ddr_hidden);
1038 pci_disable_device(pdev);
1039 pci_set_drvdata(pdev, NULL);
1043 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1045 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1050 mthca_free_agents(mdev);
1051 mthca_unregister_device(mdev);
1053 for (p = 1; p <= mdev->limits.num_ports; ++p)
1054 mthca_CLOSE_IB(mdev, p, &status);
1056 mthca_cleanup_mcg_table(mdev);
1057 mthca_cleanup_av_table(mdev);
1058 mthca_cleanup_qp_table(mdev);
1059 mthca_cleanup_cq_table(mdev);
1060 mthca_cmd_use_polling(mdev);
1061 mthca_cleanup_eq_table(mdev);
1063 mthca_pd_free(mdev, &mdev->driver_pd);
1065 mthca_cleanup_mr_table(mdev);
1066 mthca_cleanup_pd_table(mdev);
1068 mthca_close_hca(mdev);
1071 iounmap(mdev->ecr_base);
1072 iounmap(mdev->clr_base);
1074 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1075 pci_disable_msix(pdev);
1076 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1077 pci_disable_msi(pdev);
1079 ib_dealloc_device(&mdev->ib_dev);
1080 mthca_release_regions(pdev, mdev->mthca_flags &
1081 MTHCA_FLAG_DDR_HIDDEN);
1082 pci_disable_device(pdev);
1083 pci_set_drvdata(pdev, NULL);
1087 static struct pci_device_id mthca_pci_table[] = {
1088 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1089 .driver_data = TAVOR },
1090 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1091 .driver_data = TAVOR },
1092 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1093 .driver_data = ARBEL_COMPAT },
1094 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1095 .driver_data = ARBEL_COMPAT },
1096 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1097 .driver_data = ARBEL_NATIVE },
1098 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1099 .driver_data = ARBEL_NATIVE },
1103 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1105 static struct pci_driver mthca_driver = {
1107 .id_table = mthca_pci_table,
1108 .probe = mthca_init_one,
1109 .remove = __devexit_p(mthca_remove_one)
1112 static int __init mthca_init(void)
1116 ret = pci_register_driver(&mthca_driver);
1117 return ret < 0 ? ret : 0;
1120 static void __exit mthca_cleanup(void)
1122 pci_unregister_driver(&mthca_driver);
1125 module_init(mthca_init);
1126 module_exit(mthca_cleanup);