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.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
34 * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
37 #include <linux/config.h>
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/errno.h>
41 #include <linux/pci.h>
42 #include <linux/interrupt.h>
44 #include "mthca_dev.h"
45 #include "mthca_config_reg.h"
46 #include "mthca_cmd.h"
47 #include "mthca_profile.h"
48 #include "mthca_memfree.h"
50 MODULE_AUTHOR("Roland Dreier");
51 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
52 MODULE_LICENSE("Dual BSD/GPL");
53 MODULE_VERSION(DRV_VERSION);
58 module_param(msi_x, int, 0444);
59 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
62 module_param(msi, int, 0444);
63 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
65 #else /* CONFIG_PCI_MSI */
70 #endif /* CONFIG_PCI_MSI */
72 static const char mthca_version[] __devinitdata =
73 DRV_NAME ": Mellanox InfiniBand HCA driver v"
74 DRV_VERSION " (" DRV_RELDATE ")\n";
76 static struct mthca_profile default_profile = {
83 .num_udav = 1 << 15, /* Tavor only */
84 .fmr_reserved_mtts = 1 << 18, /* Tavor only */
85 .uarc_size = 1 << 18, /* Arbel only */
88 static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
93 /* First try to max out Read Byte Count */
94 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
96 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
97 mthca_err(mdev, "Couldn't read PCI-X command register, "
101 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
102 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
103 mthca_err(mdev, "Couldn't write PCI-X command register, "
107 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
108 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
110 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
112 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
113 mthca_err(mdev, "Couldn't read PCI Express device control "
114 "register, aborting.\n");
117 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
118 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
119 mthca_err(mdev, "Couldn't write PCI Express device control "
120 "register, aborting.\n");
123 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
124 mthca_info(mdev, "No PCI Express capability, "
125 "not setting Max Read Request Size.\n");
130 static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
135 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
137 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
141 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
142 "aborting.\n", status);
145 if (dev_lim->min_page_sz > PAGE_SIZE) {
146 mthca_err(mdev, "HCA minimum page size of %d bigger than "
147 "kernel PAGE_SIZE of %ld, aborting.\n",
148 dev_lim->min_page_sz, PAGE_SIZE);
151 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
152 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
154 dev_lim->num_ports, MTHCA_MAX_PORTS);
158 mdev->limits.num_ports = dev_lim->num_ports;
159 mdev->limits.vl_cap = dev_lim->max_vl;
160 mdev->limits.mtu_cap = dev_lim->max_mtu;
161 mdev->limits.gid_table_len = dev_lim->max_gids;
162 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
163 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
164 mdev->limits.max_sg = dev_lim->max_sg;
165 mdev->limits.reserved_qps = dev_lim->reserved_qps;
166 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
167 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
168 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
169 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
170 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
171 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
172 mdev->limits.reserved_uars = dev_lim->reserved_uars;
173 mdev->limits.reserved_pds = dev_lim->reserved_pds;
175 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
176 May be doable since hardware supports it for SRQ.
178 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
180 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
181 supported by driver. */
182 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
183 IB_DEVICE_PORT_ACTIVE_EVENT |
184 IB_DEVICE_SYS_IMAGE_GUID |
185 IB_DEVICE_RC_RNR_NAK_GEN;
187 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
188 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
190 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
191 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
193 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
194 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
196 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
197 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
199 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
200 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
202 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
203 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
208 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
212 struct mthca_dev_lim dev_lim;
213 struct mthca_profile profile;
214 struct mthca_init_hca_param init_hca;
216 err = mthca_SYS_EN(mdev, &status);
218 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
222 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
223 "aborting.\n", status);
227 err = mthca_QUERY_FW(mdev, &status);
229 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
233 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
234 "aborting.\n", status);
238 err = mthca_QUERY_DDR(mdev, &status);
240 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
244 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
245 "aborting.\n", status);
250 err = mthca_dev_lim(mdev, &dev_lim);
252 profile = default_profile;
253 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
254 profile.uarc_size = 0;
256 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
260 err = mthca_INIT_HCA(mdev, &init_hca, &status);
262 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
266 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
267 "aborting.\n", status);
275 mthca_SYS_DIS(mdev, &status);
280 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
285 /* FIXME: use HCA-attached memory for FW if present */
287 mdev->fw.arbel.fw_icm =
288 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
289 GFP_HIGHUSER | __GFP_NOWARN);
290 if (!mdev->fw.arbel.fw_icm) {
291 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
295 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
297 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
301 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
305 err = mthca_RUN_FW(mdev, &status);
307 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
311 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
319 mthca_UNMAP_FA(mdev, &status);
322 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
326 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
327 struct mthca_dev_lim *dev_lim,
328 struct mthca_init_hca_param *init_hca,
335 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
337 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
341 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
342 "aborting.\n", status);
346 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
347 (unsigned long long) icm_size >> 10,
348 (unsigned long long) aux_pages << 2);
350 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
351 GFP_HIGHUSER | __GFP_NOWARN);
352 if (!mdev->fw.arbel.aux_icm) {
353 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
357 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
359 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
363 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
368 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
370 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
374 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
376 mdev->limits.num_mtt_segs,
377 mdev->limits.reserved_mtts, 1);
378 if (!mdev->mr_table.mtt_table) {
379 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
384 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
385 dev_lim->mpt_entry_sz,
386 mdev->limits.num_mpts,
387 mdev->limits.reserved_mrws, 1);
388 if (!mdev->mr_table.mpt_table) {
389 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
394 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
395 dev_lim->qpc_entry_sz,
396 mdev->limits.num_qps,
397 mdev->limits.reserved_qps, 0);
398 if (!mdev->qp_table.qp_table) {
399 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
404 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
405 dev_lim->eqpc_entry_sz,
406 mdev->limits.num_qps,
407 mdev->limits.reserved_qps, 0);
408 if (!mdev->qp_table.eqp_table) {
409 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
414 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
415 MTHCA_RDB_ENTRY_SIZE,
416 mdev->limits.num_qps <<
417 mdev->qp_table.rdb_shift,
419 if (!mdev->qp_table.rdb_table) {
420 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
425 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
426 dev_lim->cqc_entry_sz,
427 mdev->limits.num_cqs,
428 mdev->limits.reserved_cqs, 0);
429 if (!mdev->cq_table.table) {
430 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
436 * It's not strictly required, but for simplicity just map the
437 * whole multicast group table now. The table isn't very big
438 * and it's a lot easier than trying to track ref counts.
440 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
441 MTHCA_MGM_ENTRY_SIZE,
442 mdev->limits.num_mgms +
443 mdev->limits.num_amgms,
444 mdev->limits.num_mgms +
445 mdev->limits.num_amgms,
447 if (!mdev->mcg_table.table) {
448 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
456 mthca_free_icm_table(mdev, mdev->cq_table.table);
459 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
462 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
465 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
468 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
471 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
474 mthca_unmap_eq_icm(mdev);
477 mthca_UNMAP_ICM_AUX(mdev, &status);
480 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
485 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
487 struct mthca_dev_lim dev_lim;
488 struct mthca_profile profile;
489 struct mthca_init_hca_param init_hca;
494 err = mthca_QUERY_FW(mdev, &status);
496 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
500 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
501 "aborting.\n", status);
505 err = mthca_ENABLE_LAM(mdev, &status);
507 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
510 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
511 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
512 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
514 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
515 "aborting.\n", status);
519 err = mthca_load_fw(mdev);
521 mthca_err(mdev, "Failed to start FW, aborting.\n");
525 err = mthca_dev_lim(mdev, &dev_lim);
527 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
531 profile = default_profile;
532 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
533 profile.num_udav = 0;
535 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
536 if ((int) icm_size < 0) {
541 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
545 err = mthca_INIT_HCA(mdev, &init_hca, &status);
547 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
551 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
552 "aborting.\n", status);
560 mthca_free_icm_table(mdev, mdev->cq_table.table);
561 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
562 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
563 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
564 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
565 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
566 mthca_unmap_eq_icm(mdev);
568 mthca_UNMAP_ICM_AUX(mdev, &status);
569 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
572 mthca_UNMAP_FA(mdev, &status);
573 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
576 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
577 mthca_DISABLE_LAM(mdev, &status);
582 static void mthca_close_hca(struct mthca_dev *mdev)
586 mthca_CLOSE_HCA(mdev, 0, &status);
588 if (mthca_is_memfree(mdev)) {
589 mthca_free_icm_table(mdev, mdev->cq_table.table);
590 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
591 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
592 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
593 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
594 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
595 mthca_unmap_eq_icm(mdev);
597 mthca_UNMAP_ICM_AUX(mdev, &status);
598 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
600 mthca_UNMAP_FA(mdev, &status);
601 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
603 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
604 mthca_DISABLE_LAM(mdev, &status);
606 mthca_SYS_DIS(mdev, &status);
609 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
613 struct mthca_adapter adapter;
615 if (mthca_is_memfree(mdev))
616 err = mthca_init_arbel(mdev);
618 err = mthca_init_tavor(mdev);
623 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
625 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
629 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
630 "aborting.\n", status);
635 mdev->eq_table.inta_pin = adapter.inta_pin;
636 mdev->rev_id = adapter.revision_id;
637 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
642 mthca_close_hca(mdev);
646 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
651 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
653 err = mthca_init_uar_table(dev);
655 mthca_err(dev, "Failed to initialize "
656 "user access region table, aborting.\n");
660 err = mthca_uar_alloc(dev, &dev->driver_uar);
662 mthca_err(dev, "Failed to allocate driver access region, "
664 goto err_uar_table_free;
667 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
669 mthca_err(dev, "Couldn't map kernel access region, "
675 err = mthca_init_pd_table(dev);
677 mthca_err(dev, "Failed to initialize "
678 "protection domain table, aborting.\n");
682 err = mthca_init_mr_table(dev);
684 mthca_err(dev, "Failed to initialize "
685 "memory region table, aborting.\n");
686 goto err_pd_table_free;
689 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
691 mthca_err(dev, "Failed to create driver PD, "
693 goto err_mr_table_free;
696 err = mthca_init_eq_table(dev);
698 mthca_err(dev, "Failed to initialize "
699 "event queue table, aborting.\n");
703 err = mthca_cmd_use_events(dev);
705 mthca_err(dev, "Failed to switch to event-driven "
706 "firmware commands, aborting.\n");
707 goto err_eq_table_free;
710 err = mthca_NOP(dev, &status);
712 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
713 dev->mthca_flags & MTHCA_FLAG_MSI_X ?
714 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
716 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
717 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
719 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
724 mthca_dbg(dev, "NOP command IRQ test passed\n");
726 err = mthca_init_cq_table(dev);
728 mthca_err(dev, "Failed to initialize "
729 "completion queue table, aborting.\n");
733 err = mthca_init_qp_table(dev);
735 mthca_err(dev, "Failed to initialize "
736 "queue pair table, aborting.\n");
737 goto err_cq_table_free;
740 err = mthca_init_av_table(dev);
742 mthca_err(dev, "Failed to initialize "
743 "address vector table, aborting.\n");
744 goto err_qp_table_free;
747 err = mthca_init_mcg_table(dev);
749 mthca_err(dev, "Failed to initialize "
750 "multicast group table, aborting.\n");
751 goto err_av_table_free;
757 mthca_cleanup_av_table(dev);
760 mthca_cleanup_qp_table(dev);
763 mthca_cleanup_cq_table(dev);
766 mthca_cmd_use_polling(dev);
769 mthca_cleanup_eq_table(dev);
772 mthca_pd_free(dev, &dev->driver_pd);
775 mthca_cleanup_mr_table(dev);
778 mthca_cleanup_pd_table(dev);
784 mthca_uar_free(dev, &dev->driver_uar);
787 mthca_cleanup_uar_table(dev);
791 static int __devinit mthca_request_regions(struct pci_dev *pdev,
797 * We can't just use pci_request_regions() because the MSI-X
798 * table is right in the middle of the first BAR. If we did
799 * pci_request_region and grab all of the first BAR, then
800 * setting up MSI-X would fail, since the PCI core wants to do
801 * request_mem_region on the MSI-X vector table.
803 * So just request what we need right now, and request any
804 * other regions we need when setting up EQs.
806 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
807 MTHCA_HCR_SIZE, DRV_NAME))
810 err = pci_request_region(pdev, 2, DRV_NAME);
812 goto err_bar2_failed;
815 err = pci_request_region(pdev, 4, DRV_NAME);
817 goto err_bar4_failed;
823 pci_release_region(pdev, 2);
826 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
832 static void mthca_release_regions(struct pci_dev *pdev,
836 pci_release_region(pdev, 4);
838 pci_release_region(pdev, 2);
840 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
844 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
846 struct msix_entry entries[3];
849 entries[0].entry = 0;
850 entries[1].entry = 1;
851 entries[2].entry = 2;
853 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
856 mthca_info(mdev, "Only %d MSI-X vectors available, "
857 "not using MSI-X\n", err);
861 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
862 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
863 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
868 /* Types of supported HCA */
871 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
872 ARBEL_NATIVE, /* MT25208 with extended features */
876 #define MTHCA_FW_VER(major, minor, subminor) \
877 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
883 } mthca_hca_table[] = {
884 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 },
885 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 },
886 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 },
887 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
890 static int __devinit mthca_init_one(struct pci_dev *pdev,
891 const struct pci_device_id *id)
893 static int mthca_version_printed = 0;
896 struct mthca_dev *mdev;
898 if (!mthca_version_printed) {
899 printk(KERN_INFO "%s", mthca_version);
900 ++mthca_version_printed;
903 printk(KERN_INFO PFX "Initializing %s (%s)\n",
904 pci_pretty_name(pdev), pci_name(pdev));
906 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
907 printk(KERN_ERR PFX "%s (%s) has invalid driver data %lx\n",
908 pci_pretty_name(pdev), pci_name(pdev), id->driver_data);
912 err = pci_enable_device(pdev);
914 dev_err(&pdev->dev, "Cannot enable PCI device, "
920 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
923 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
924 pci_resource_len(pdev, 0) != 1 << 20) {
925 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
927 goto err_disable_pdev;
929 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
930 pci_resource_len(pdev, 2) != 1 << 23) {
931 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
933 goto err_disable_pdev;
935 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
938 err = mthca_request_regions(pdev, ddr_hidden);
940 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
942 goto err_disable_pdev;
945 pci_set_master(pdev);
947 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
949 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
950 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
952 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
956 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
958 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
959 "consistent PCI DMA mask.\n");
960 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
962 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
968 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
970 dev_err(&pdev->dev, "Device struct alloc failed, "
979 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
980 if (mthca_hca_table[id->driver_data].is_memfree)
981 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
982 if (mthca_hca_table[id->driver_data].is_pcie)
983 mdev->mthca_flags |= MTHCA_FLAG_PCIE;
986 * Now reset the HCA before we touch the PCI capabilities or
987 * attempt a firmware command, since a boot ROM may have left
988 * the HCA in an undefined state.
990 err = mthca_reset(mdev);
992 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
996 if (msi_x && !mthca_enable_msi_x(mdev))
997 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
998 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
999 !pci_enable_msi(pdev))
1000 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1002 if (mthca_cmd_init(mdev)) {
1003 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1007 err = mthca_tune_pci(mdev);
1011 err = mthca_init_hca(mdev);
1015 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
1016 mthca_warn(mdev, "HCA FW version %x.%x.%x is old (%x.%x.%x is current).\n",
1017 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1018 (int) (mdev->fw_ver & 0xffff),
1019 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
1020 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
1021 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
1022 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1025 err = mthca_setup_hca(mdev);
1029 err = mthca_register_device(mdev);
1033 err = mthca_create_agents(mdev);
1035 goto err_unregister;
1037 pci_set_drvdata(pdev, mdev);
1042 mthca_unregister_device(mdev);
1045 mthca_cleanup_mcg_table(mdev);
1046 mthca_cleanup_av_table(mdev);
1047 mthca_cleanup_qp_table(mdev);
1048 mthca_cleanup_cq_table(mdev);
1049 mthca_cmd_use_polling(mdev);
1050 mthca_cleanup_eq_table(mdev);
1052 mthca_pd_free(mdev, &mdev->driver_pd);
1054 mthca_cleanup_mr_table(mdev);
1055 mthca_cleanup_pd_table(mdev);
1056 mthca_cleanup_uar_table(mdev);
1059 mthca_close_hca(mdev);
1062 mthca_cmd_cleanup(mdev);
1065 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1066 pci_disable_msix(pdev);
1067 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1068 pci_disable_msi(pdev);
1070 ib_dealloc_device(&mdev->ib_dev);
1073 mthca_release_regions(pdev, ddr_hidden);
1076 pci_disable_device(pdev);
1077 pci_set_drvdata(pdev, NULL);
1081 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1083 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1088 mthca_free_agents(mdev);
1089 mthca_unregister_device(mdev);
1091 for (p = 1; p <= mdev->limits.num_ports; ++p)
1092 mthca_CLOSE_IB(mdev, p, &status);
1094 mthca_cleanup_mcg_table(mdev);
1095 mthca_cleanup_av_table(mdev);
1096 mthca_cleanup_qp_table(mdev);
1097 mthca_cleanup_cq_table(mdev);
1098 mthca_cmd_use_polling(mdev);
1099 mthca_cleanup_eq_table(mdev);
1101 mthca_pd_free(mdev, &mdev->driver_pd);
1103 mthca_cleanup_mr_table(mdev);
1104 mthca_cleanup_pd_table(mdev);
1107 mthca_uar_free(mdev, &mdev->driver_uar);
1108 mthca_cleanup_uar_table(mdev);
1109 mthca_close_hca(mdev);
1110 mthca_cmd_cleanup(mdev);
1112 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1113 pci_disable_msix(pdev);
1114 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1115 pci_disable_msi(pdev);
1117 ib_dealloc_device(&mdev->ib_dev);
1118 mthca_release_regions(pdev, mdev->mthca_flags &
1119 MTHCA_FLAG_DDR_HIDDEN);
1120 pci_disable_device(pdev);
1121 pci_set_drvdata(pdev, NULL);
1125 static struct pci_device_id mthca_pci_table[] = {
1126 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1127 .driver_data = TAVOR },
1128 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1129 .driver_data = TAVOR },
1130 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1131 .driver_data = ARBEL_COMPAT },
1132 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1133 .driver_data = ARBEL_COMPAT },
1134 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1135 .driver_data = ARBEL_NATIVE },
1136 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1137 .driver_data = ARBEL_NATIVE },
1138 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1139 .driver_data = SINAI },
1140 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1141 .driver_data = SINAI },
1142 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1143 .driver_data = SINAI },
1144 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1145 .driver_data = SINAI },
1149 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1151 static struct pci_driver mthca_driver = {
1153 .id_table = mthca_pci_table,
1154 .probe = mthca_init_one,
1155 .remove = __devexit_p(mthca_remove_one)
1158 static int __init mthca_init(void)
1162 ret = pci_register_driver(&mthca_driver);
1163 return ret < 0 ? ret : 0;
1166 static void __exit mthca_cleanup(void)
1168 pci_unregister_driver(&mthca_driver);
1171 module_init(mthca_init);
1172 module_exit(mthca_cleanup);