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.max_wqes = dev_lim->max_qp_sz;
166 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp;
167 mdev->limits.reserved_qps = dev_lim->reserved_qps;
168 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz;
169 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
170 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
171 mdev->limits.max_desc_sz = dev_lim->max_desc_sz;
173 * Subtract 1 from the limit because we need to allocate a
174 * spare CQE so the HCA HW can tell the difference between an
175 * empty CQ and a full CQ.
177 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1;
178 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
179 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
180 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
181 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
182 mdev->limits.reserved_uars = dev_lim->reserved_uars;
183 mdev->limits.reserved_pds = dev_lim->reserved_pds;
184 mdev->limits.port_width_cap = dev_lim->max_port_width;
185 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
186 mdev->limits.flags = dev_lim->flags;
188 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
189 May be doable since hardware supports it for SRQ.
191 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
193 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
194 supported by driver. */
195 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
196 IB_DEVICE_PORT_ACTIVE_EVENT |
197 IB_DEVICE_SYS_IMAGE_GUID |
198 IB_DEVICE_RC_RNR_NAK_GEN;
200 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
201 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
203 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
204 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
206 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
207 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
209 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
210 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
212 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
213 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
215 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
216 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
221 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
225 struct mthca_dev_lim dev_lim;
226 struct mthca_profile profile;
227 struct mthca_init_hca_param init_hca;
229 err = mthca_SYS_EN(mdev, &status);
231 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
235 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
236 "aborting.\n", status);
240 err = mthca_QUERY_FW(mdev, &status);
242 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
246 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
247 "aborting.\n", status);
251 err = mthca_QUERY_DDR(mdev, &status);
253 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
257 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
258 "aborting.\n", status);
263 err = mthca_dev_lim(mdev, &dev_lim);
265 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
269 profile = default_profile;
270 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
271 profile.uarc_size = 0;
272 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
273 profile.num_srq = dev_lim.max_srqs;
275 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
279 err = mthca_INIT_HCA(mdev, &init_hca, &status);
281 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
285 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
286 "aborting.\n", status);
294 mthca_SYS_DIS(mdev, &status);
299 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
304 /* FIXME: use HCA-attached memory for FW if present */
306 mdev->fw.arbel.fw_icm =
307 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
308 GFP_HIGHUSER | __GFP_NOWARN);
309 if (!mdev->fw.arbel.fw_icm) {
310 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
314 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
316 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
320 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
324 err = mthca_RUN_FW(mdev, &status);
326 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
330 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
338 mthca_UNMAP_FA(mdev, &status);
341 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
345 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
346 struct mthca_dev_lim *dev_lim,
347 struct mthca_init_hca_param *init_hca,
354 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
356 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
360 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
361 "aborting.\n", status);
365 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
366 (unsigned long long) icm_size >> 10,
367 (unsigned long long) aux_pages << 2);
369 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
370 GFP_HIGHUSER | __GFP_NOWARN);
371 if (!mdev->fw.arbel.aux_icm) {
372 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
376 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
378 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
382 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
387 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
389 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
393 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
395 mdev->limits.num_mtt_segs,
396 mdev->limits.reserved_mtts, 1);
397 if (!mdev->mr_table.mtt_table) {
398 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
403 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
404 dev_lim->mpt_entry_sz,
405 mdev->limits.num_mpts,
406 mdev->limits.reserved_mrws, 1);
407 if (!mdev->mr_table.mpt_table) {
408 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
413 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
414 dev_lim->qpc_entry_sz,
415 mdev->limits.num_qps,
416 mdev->limits.reserved_qps, 0);
417 if (!mdev->qp_table.qp_table) {
418 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
423 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
424 dev_lim->eqpc_entry_sz,
425 mdev->limits.num_qps,
426 mdev->limits.reserved_qps, 0);
427 if (!mdev->qp_table.eqp_table) {
428 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
433 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
434 MTHCA_RDB_ENTRY_SIZE,
435 mdev->limits.num_qps <<
436 mdev->qp_table.rdb_shift,
438 if (!mdev->qp_table.rdb_table) {
439 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
444 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
445 dev_lim->cqc_entry_sz,
446 mdev->limits.num_cqs,
447 mdev->limits.reserved_cqs, 0);
448 if (!mdev->cq_table.table) {
449 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
454 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
455 mdev->srq_table.table =
456 mthca_alloc_icm_table(mdev, init_hca->srqc_base,
457 dev_lim->srq_entry_sz,
458 mdev->limits.num_srqs,
459 mdev->limits.reserved_srqs, 0);
460 if (!mdev->srq_table.table) {
461 mthca_err(mdev, "Failed to map SRQ context memory, "
469 * It's not strictly required, but for simplicity just map the
470 * whole multicast group table now. The table isn't very big
471 * and it's a lot easier than trying to track ref counts.
473 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
474 MTHCA_MGM_ENTRY_SIZE,
475 mdev->limits.num_mgms +
476 mdev->limits.num_amgms,
477 mdev->limits.num_mgms +
478 mdev->limits.num_amgms,
480 if (!mdev->mcg_table.table) {
481 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
489 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
490 mthca_free_icm_table(mdev, mdev->srq_table.table);
493 mthca_free_icm_table(mdev, mdev->cq_table.table);
496 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
499 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
502 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
505 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
508 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
511 mthca_unmap_eq_icm(mdev);
514 mthca_UNMAP_ICM_AUX(mdev, &status);
517 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
522 static void mthca_free_icms(struct mthca_dev *mdev)
526 mthca_free_icm_table(mdev, mdev->mcg_table.table);
527 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
528 mthca_free_icm_table(mdev, mdev->srq_table.table);
529 mthca_free_icm_table(mdev, mdev->cq_table.table);
530 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
531 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
532 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
533 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
534 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
535 mthca_unmap_eq_icm(mdev);
537 mthca_UNMAP_ICM_AUX(mdev, &status);
538 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
541 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
543 struct mthca_dev_lim dev_lim;
544 struct mthca_profile profile;
545 struct mthca_init_hca_param init_hca;
550 err = mthca_QUERY_FW(mdev, &status);
552 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
556 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
557 "aborting.\n", status);
561 err = mthca_ENABLE_LAM(mdev, &status);
563 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
566 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
567 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
568 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
570 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
571 "aborting.\n", status);
575 err = mthca_load_fw(mdev);
577 mthca_err(mdev, "Failed to start FW, aborting.\n");
581 err = mthca_dev_lim(mdev, &dev_lim);
583 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
587 profile = default_profile;
588 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
589 profile.num_udav = 0;
590 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
591 profile.num_srq = dev_lim.max_srqs;
593 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
594 if ((int) icm_size < 0) {
599 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
603 err = mthca_INIT_HCA(mdev, &init_hca, &status);
605 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
609 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
610 "aborting.\n", status);
618 mthca_free_icms(mdev);
621 mthca_UNMAP_FA(mdev, &status);
622 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
625 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
626 mthca_DISABLE_LAM(mdev, &status);
631 static void mthca_close_hca(struct mthca_dev *mdev)
635 mthca_CLOSE_HCA(mdev, 0, &status);
637 if (mthca_is_memfree(mdev)) {
638 mthca_free_icms(mdev);
640 mthca_UNMAP_FA(mdev, &status);
641 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
643 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
644 mthca_DISABLE_LAM(mdev, &status);
646 mthca_SYS_DIS(mdev, &status);
649 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
653 struct mthca_adapter adapter;
655 if (mthca_is_memfree(mdev))
656 err = mthca_init_arbel(mdev);
658 err = mthca_init_tavor(mdev);
663 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
665 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
669 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
670 "aborting.\n", status);
675 mdev->eq_table.inta_pin = adapter.inta_pin;
676 mdev->rev_id = adapter.revision_id;
677 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
682 mthca_close_hca(mdev);
686 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
691 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
693 err = mthca_init_uar_table(dev);
695 mthca_err(dev, "Failed to initialize "
696 "user access region table, aborting.\n");
700 err = mthca_uar_alloc(dev, &dev->driver_uar);
702 mthca_err(dev, "Failed to allocate driver access region, "
704 goto err_uar_table_free;
707 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
709 mthca_err(dev, "Couldn't map kernel access region, "
715 err = mthca_init_pd_table(dev);
717 mthca_err(dev, "Failed to initialize "
718 "protection domain table, aborting.\n");
722 err = mthca_init_mr_table(dev);
724 mthca_err(dev, "Failed to initialize "
725 "memory region table, aborting.\n");
726 goto err_pd_table_free;
729 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
731 mthca_err(dev, "Failed to create driver PD, "
733 goto err_mr_table_free;
736 err = mthca_init_eq_table(dev);
738 mthca_err(dev, "Failed to initialize "
739 "event queue table, aborting.\n");
743 err = mthca_cmd_use_events(dev);
745 mthca_err(dev, "Failed to switch to event-driven "
746 "firmware commands, aborting.\n");
747 goto err_eq_table_free;
750 err = mthca_NOP(dev, &status);
752 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
753 dev->mthca_flags & MTHCA_FLAG_MSI_X ?
754 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
756 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
757 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
759 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
764 mthca_dbg(dev, "NOP command IRQ test passed\n");
766 err = mthca_init_cq_table(dev);
768 mthca_err(dev, "Failed to initialize "
769 "completion queue table, aborting.\n");
773 err = mthca_init_srq_table(dev);
775 mthca_err(dev, "Failed to initialize "
776 "shared receive queue table, aborting.\n");
777 goto err_cq_table_free;
780 err = mthca_init_qp_table(dev);
782 mthca_err(dev, "Failed to initialize "
783 "queue pair table, aborting.\n");
784 goto err_srq_table_free;
787 err = mthca_init_av_table(dev);
789 mthca_err(dev, "Failed to initialize "
790 "address vector table, aborting.\n");
791 goto err_qp_table_free;
794 err = mthca_init_mcg_table(dev);
796 mthca_err(dev, "Failed to initialize "
797 "multicast group table, aborting.\n");
798 goto err_av_table_free;
804 mthca_cleanup_av_table(dev);
807 mthca_cleanup_qp_table(dev);
810 mthca_cleanup_srq_table(dev);
813 mthca_cleanup_cq_table(dev);
816 mthca_cmd_use_polling(dev);
819 mthca_cleanup_eq_table(dev);
822 mthca_pd_free(dev, &dev->driver_pd);
825 mthca_cleanup_mr_table(dev);
828 mthca_cleanup_pd_table(dev);
834 mthca_uar_free(dev, &dev->driver_uar);
837 mthca_cleanup_uar_table(dev);
841 static int __devinit mthca_request_regions(struct pci_dev *pdev,
847 * We can't just use pci_request_regions() because the MSI-X
848 * table is right in the middle of the first BAR. If we did
849 * pci_request_region and grab all of the first BAR, then
850 * setting up MSI-X would fail, since the PCI core wants to do
851 * request_mem_region on the MSI-X vector table.
853 * So just request what we need right now, and request any
854 * other regions we need when setting up EQs.
856 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
857 MTHCA_HCR_SIZE, DRV_NAME))
860 err = pci_request_region(pdev, 2, DRV_NAME);
862 goto err_bar2_failed;
865 err = pci_request_region(pdev, 4, DRV_NAME);
867 goto err_bar4_failed;
873 pci_release_region(pdev, 2);
876 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
882 static void mthca_release_regions(struct pci_dev *pdev,
886 pci_release_region(pdev, 4);
888 pci_release_region(pdev, 2);
890 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
894 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
896 struct msix_entry entries[3];
899 entries[0].entry = 0;
900 entries[1].entry = 1;
901 entries[2].entry = 2;
903 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
906 mthca_info(mdev, "Only %d MSI-X vectors available, "
907 "not using MSI-X\n", err);
911 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
912 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
913 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
918 /* Types of supported HCA */
921 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
922 ARBEL_NATIVE, /* MT25208 with extended features */
926 #define MTHCA_FW_VER(major, minor, subminor) \
927 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
933 } mthca_hca_table[] = {
934 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 },
935 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 },
936 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 },
937 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
940 static int __devinit mthca_init_one(struct pci_dev *pdev,
941 const struct pci_device_id *id)
943 static int mthca_version_printed = 0;
946 struct mthca_dev *mdev;
948 if (!mthca_version_printed) {
949 printk(KERN_INFO "%s", mthca_version);
950 ++mthca_version_printed;
953 printk(KERN_INFO PFX "Initializing %s\n",
956 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
957 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
958 pci_name(pdev), id->driver_data);
962 err = pci_enable_device(pdev);
964 dev_err(&pdev->dev, "Cannot enable PCI device, "
970 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
973 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
974 pci_resource_len(pdev, 0) != 1 << 20) {
975 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
977 goto err_disable_pdev;
979 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
980 pci_resource_len(pdev, 2) != 1 << 23) {
981 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
983 goto err_disable_pdev;
985 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
988 err = mthca_request_regions(pdev, ddr_hidden);
990 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
992 goto err_disable_pdev;
995 pci_set_master(pdev);
997 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
999 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1000 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1002 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1006 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1008 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1009 "consistent PCI DMA mask.\n");
1010 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1012 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1018 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1020 dev_err(&pdev->dev, "Device struct alloc failed, "
1029 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1030 if (mthca_hca_table[id->driver_data].is_memfree)
1031 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
1032 if (mthca_hca_table[id->driver_data].is_pcie)
1033 mdev->mthca_flags |= MTHCA_FLAG_PCIE;
1036 * Now reset the HCA before we touch the PCI capabilities or
1037 * attempt a firmware command, since a boot ROM may have left
1038 * the HCA in an undefined state.
1040 err = mthca_reset(mdev);
1042 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1046 if (msi_x && !mthca_enable_msi_x(mdev))
1047 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1048 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1049 !pci_enable_msi(pdev))
1050 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1052 if (mthca_cmd_init(mdev)) {
1053 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1057 err = mthca_tune_pci(mdev);
1061 err = mthca_init_hca(mdev);
1065 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
1066 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
1067 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1068 (int) (mdev->fw_ver & 0xffff),
1069 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
1070 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
1071 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
1072 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1075 err = mthca_setup_hca(mdev);
1079 err = mthca_register_device(mdev);
1083 err = mthca_create_agents(mdev);
1085 goto err_unregister;
1087 pci_set_drvdata(pdev, mdev);
1092 mthca_unregister_device(mdev);
1095 mthca_cleanup_mcg_table(mdev);
1096 mthca_cleanup_av_table(mdev);
1097 mthca_cleanup_qp_table(mdev);
1098 mthca_cleanup_srq_table(mdev);
1099 mthca_cleanup_cq_table(mdev);
1100 mthca_cmd_use_polling(mdev);
1101 mthca_cleanup_eq_table(mdev);
1103 mthca_pd_free(mdev, &mdev->driver_pd);
1105 mthca_cleanup_mr_table(mdev);
1106 mthca_cleanup_pd_table(mdev);
1107 mthca_cleanup_uar_table(mdev);
1110 mthca_close_hca(mdev);
1113 mthca_cmd_cleanup(mdev);
1116 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1117 pci_disable_msix(pdev);
1118 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1119 pci_disable_msi(pdev);
1121 ib_dealloc_device(&mdev->ib_dev);
1124 mthca_release_regions(pdev, ddr_hidden);
1127 pci_disable_device(pdev);
1128 pci_set_drvdata(pdev, NULL);
1132 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1134 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1139 mthca_free_agents(mdev);
1140 mthca_unregister_device(mdev);
1142 for (p = 1; p <= mdev->limits.num_ports; ++p)
1143 mthca_CLOSE_IB(mdev, p, &status);
1145 mthca_cleanup_mcg_table(mdev);
1146 mthca_cleanup_av_table(mdev);
1147 mthca_cleanup_qp_table(mdev);
1148 mthca_cleanup_srq_table(mdev);
1149 mthca_cleanup_cq_table(mdev);
1150 mthca_cmd_use_polling(mdev);
1151 mthca_cleanup_eq_table(mdev);
1153 mthca_pd_free(mdev, &mdev->driver_pd);
1155 mthca_cleanup_mr_table(mdev);
1156 mthca_cleanup_pd_table(mdev);
1159 mthca_uar_free(mdev, &mdev->driver_uar);
1160 mthca_cleanup_uar_table(mdev);
1161 mthca_close_hca(mdev);
1162 mthca_cmd_cleanup(mdev);
1164 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1165 pci_disable_msix(pdev);
1166 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1167 pci_disable_msi(pdev);
1169 ib_dealloc_device(&mdev->ib_dev);
1170 mthca_release_regions(pdev, mdev->mthca_flags &
1171 MTHCA_FLAG_DDR_HIDDEN);
1172 pci_disable_device(pdev);
1173 pci_set_drvdata(pdev, NULL);
1177 static struct pci_device_id mthca_pci_table[] = {
1178 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1179 .driver_data = TAVOR },
1180 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1181 .driver_data = TAVOR },
1182 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1183 .driver_data = ARBEL_COMPAT },
1184 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1185 .driver_data = ARBEL_COMPAT },
1186 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1187 .driver_data = ARBEL_NATIVE },
1188 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1189 .driver_data = ARBEL_NATIVE },
1190 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1191 .driver_data = SINAI },
1192 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1193 .driver_data = SINAI },
1194 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1195 .driver_data = SINAI },
1196 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1197 .driver_data = SINAI },
1201 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1203 static struct pci_driver mthca_driver = {
1205 .id_table = mthca_pci_table,
1206 .probe = mthca_init_one,
1207 .remove = __devexit_p(mthca_remove_one)
1210 static int __init mthca_init(void)
1214 ret = pci_register_driver(&mthca_driver);
1215 return ret < 0 ? ret : 0;
1218 static void __exit mthca_cleanup(void)
1220 pci_unregister_driver(&mthca_driver);
1223 module_init(mthca_init);
1224 module_exit(mthca_cleanup);