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;
172 * Subtract 1 from the limit because we need to allocate a
173 * spare CQE so the HCA HW can tell the difference between an
174 * empty CQ and a full CQ.
176 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1;
177 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
178 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
179 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
180 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
181 mdev->limits.reserved_uars = dev_lim->reserved_uars;
182 mdev->limits.reserved_pds = dev_lim->reserved_pds;
183 mdev->limits.port_width_cap = dev_lim->max_port_width;
184 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
185 mdev->limits.flags = dev_lim->flags;
187 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
188 May be doable since hardware supports it for SRQ.
190 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
192 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
193 supported by driver. */
194 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
195 IB_DEVICE_PORT_ACTIVE_EVENT |
196 IB_DEVICE_SYS_IMAGE_GUID |
197 IB_DEVICE_RC_RNR_NAK_GEN;
199 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
200 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
202 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
203 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
205 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
206 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
208 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
209 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
211 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
212 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
214 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
215 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
220 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
224 struct mthca_dev_lim dev_lim;
225 struct mthca_profile profile;
226 struct mthca_init_hca_param init_hca;
228 err = mthca_SYS_EN(mdev, &status);
230 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
234 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
235 "aborting.\n", status);
239 err = mthca_QUERY_FW(mdev, &status);
241 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
245 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
246 "aborting.\n", status);
250 err = mthca_QUERY_DDR(mdev, &status);
252 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
256 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
257 "aborting.\n", status);
262 err = mthca_dev_lim(mdev, &dev_lim);
264 profile = default_profile;
265 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
266 profile.uarc_size = 0;
267 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
268 profile.num_srq = dev_lim.max_srqs;
270 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
274 err = mthca_INIT_HCA(mdev, &init_hca, &status);
276 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
280 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
281 "aborting.\n", status);
289 mthca_SYS_DIS(mdev, &status);
294 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
299 /* FIXME: use HCA-attached memory for FW if present */
301 mdev->fw.arbel.fw_icm =
302 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
303 GFP_HIGHUSER | __GFP_NOWARN);
304 if (!mdev->fw.arbel.fw_icm) {
305 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
309 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
311 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
315 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
319 err = mthca_RUN_FW(mdev, &status);
321 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
325 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
333 mthca_UNMAP_FA(mdev, &status);
336 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
340 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
341 struct mthca_dev_lim *dev_lim,
342 struct mthca_init_hca_param *init_hca,
349 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
351 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
355 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
356 "aborting.\n", status);
360 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
361 (unsigned long long) icm_size >> 10,
362 (unsigned long long) aux_pages << 2);
364 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
365 GFP_HIGHUSER | __GFP_NOWARN);
366 if (!mdev->fw.arbel.aux_icm) {
367 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
371 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
373 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
377 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
382 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
384 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
388 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
390 mdev->limits.num_mtt_segs,
391 mdev->limits.reserved_mtts, 1);
392 if (!mdev->mr_table.mtt_table) {
393 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
398 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
399 dev_lim->mpt_entry_sz,
400 mdev->limits.num_mpts,
401 mdev->limits.reserved_mrws, 1);
402 if (!mdev->mr_table.mpt_table) {
403 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
408 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
409 dev_lim->qpc_entry_sz,
410 mdev->limits.num_qps,
411 mdev->limits.reserved_qps, 0);
412 if (!mdev->qp_table.qp_table) {
413 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
418 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
419 dev_lim->eqpc_entry_sz,
420 mdev->limits.num_qps,
421 mdev->limits.reserved_qps, 0);
422 if (!mdev->qp_table.eqp_table) {
423 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
428 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
429 MTHCA_RDB_ENTRY_SIZE,
430 mdev->limits.num_qps <<
431 mdev->qp_table.rdb_shift,
433 if (!mdev->qp_table.rdb_table) {
434 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
439 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
440 dev_lim->cqc_entry_sz,
441 mdev->limits.num_cqs,
442 mdev->limits.reserved_cqs, 0);
443 if (!mdev->cq_table.table) {
444 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
449 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
450 mdev->srq_table.table =
451 mthca_alloc_icm_table(mdev, init_hca->srqc_base,
452 dev_lim->srq_entry_sz,
453 mdev->limits.num_srqs,
454 mdev->limits.reserved_srqs, 0);
455 if (!mdev->srq_table.table) {
456 mthca_err(mdev, "Failed to map SRQ context memory, "
464 * It's not strictly required, but for simplicity just map the
465 * whole multicast group table now. The table isn't very big
466 * and it's a lot easier than trying to track ref counts.
468 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
469 MTHCA_MGM_ENTRY_SIZE,
470 mdev->limits.num_mgms +
471 mdev->limits.num_amgms,
472 mdev->limits.num_mgms +
473 mdev->limits.num_amgms,
475 if (!mdev->mcg_table.table) {
476 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
484 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
485 mthca_free_icm_table(mdev, mdev->srq_table.table);
488 mthca_free_icm_table(mdev, mdev->cq_table.table);
491 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
494 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
497 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
500 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
503 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
506 mthca_unmap_eq_icm(mdev);
509 mthca_UNMAP_ICM_AUX(mdev, &status);
512 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
517 static void mthca_free_icms(struct mthca_dev *mdev)
521 mthca_free_icm_table(mdev, mdev->mcg_table.table);
522 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
523 mthca_free_icm_table(mdev, mdev->srq_table.table);
524 mthca_free_icm_table(mdev, mdev->cq_table.table);
525 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
526 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
527 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
528 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
529 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
530 mthca_unmap_eq_icm(mdev);
532 mthca_UNMAP_ICM_AUX(mdev, &status);
533 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
536 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
538 struct mthca_dev_lim dev_lim;
539 struct mthca_profile profile;
540 struct mthca_init_hca_param init_hca;
545 err = mthca_QUERY_FW(mdev, &status);
547 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
551 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
552 "aborting.\n", status);
556 err = mthca_ENABLE_LAM(mdev, &status);
558 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
561 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
562 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
563 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
565 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
566 "aborting.\n", status);
570 err = mthca_load_fw(mdev);
572 mthca_err(mdev, "Failed to start FW, aborting.\n");
576 err = mthca_dev_lim(mdev, &dev_lim);
578 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
582 profile = default_profile;
583 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
584 profile.num_udav = 0;
585 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
586 profile.num_srq = dev_lim.max_srqs;
588 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
589 if ((int) icm_size < 0) {
594 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
598 err = mthca_INIT_HCA(mdev, &init_hca, &status);
600 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
604 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
605 "aborting.\n", status);
613 mthca_free_icms(mdev);
616 mthca_UNMAP_FA(mdev, &status);
617 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
620 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
621 mthca_DISABLE_LAM(mdev, &status);
626 static void mthca_close_hca(struct mthca_dev *mdev)
630 mthca_CLOSE_HCA(mdev, 0, &status);
632 if (mthca_is_memfree(mdev)) {
633 mthca_free_icms(mdev);
635 mthca_UNMAP_FA(mdev, &status);
636 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
638 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
639 mthca_DISABLE_LAM(mdev, &status);
641 mthca_SYS_DIS(mdev, &status);
644 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
648 struct mthca_adapter adapter;
650 if (mthca_is_memfree(mdev))
651 err = mthca_init_arbel(mdev);
653 err = mthca_init_tavor(mdev);
658 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
660 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
664 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
665 "aborting.\n", status);
670 mdev->eq_table.inta_pin = adapter.inta_pin;
671 mdev->rev_id = adapter.revision_id;
672 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
677 mthca_close_hca(mdev);
681 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
686 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
688 err = mthca_init_uar_table(dev);
690 mthca_err(dev, "Failed to initialize "
691 "user access region table, aborting.\n");
695 err = mthca_uar_alloc(dev, &dev->driver_uar);
697 mthca_err(dev, "Failed to allocate driver access region, "
699 goto err_uar_table_free;
702 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
704 mthca_err(dev, "Couldn't map kernel access region, "
710 err = mthca_init_pd_table(dev);
712 mthca_err(dev, "Failed to initialize "
713 "protection domain table, aborting.\n");
717 err = mthca_init_mr_table(dev);
719 mthca_err(dev, "Failed to initialize "
720 "memory region table, aborting.\n");
721 goto err_pd_table_free;
724 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
726 mthca_err(dev, "Failed to create driver PD, "
728 goto err_mr_table_free;
731 err = mthca_init_eq_table(dev);
733 mthca_err(dev, "Failed to initialize "
734 "event queue table, aborting.\n");
738 err = mthca_cmd_use_events(dev);
740 mthca_err(dev, "Failed to switch to event-driven "
741 "firmware commands, aborting.\n");
742 goto err_eq_table_free;
745 err = mthca_NOP(dev, &status);
747 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
748 dev->mthca_flags & MTHCA_FLAG_MSI_X ?
749 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
751 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
752 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
754 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
759 mthca_dbg(dev, "NOP command IRQ test passed\n");
761 err = mthca_init_cq_table(dev);
763 mthca_err(dev, "Failed to initialize "
764 "completion queue table, aborting.\n");
768 err = mthca_init_srq_table(dev);
770 mthca_err(dev, "Failed to initialize "
771 "shared receive queue table, aborting.\n");
772 goto err_cq_table_free;
775 err = mthca_init_qp_table(dev);
777 mthca_err(dev, "Failed to initialize "
778 "queue pair table, aborting.\n");
779 goto err_srq_table_free;
782 err = mthca_init_av_table(dev);
784 mthca_err(dev, "Failed to initialize "
785 "address vector table, aborting.\n");
786 goto err_qp_table_free;
789 err = mthca_init_mcg_table(dev);
791 mthca_err(dev, "Failed to initialize "
792 "multicast group table, aborting.\n");
793 goto err_av_table_free;
799 mthca_cleanup_av_table(dev);
802 mthca_cleanup_qp_table(dev);
805 mthca_cleanup_srq_table(dev);
808 mthca_cleanup_cq_table(dev);
811 mthca_cmd_use_polling(dev);
814 mthca_cleanup_eq_table(dev);
817 mthca_pd_free(dev, &dev->driver_pd);
820 mthca_cleanup_mr_table(dev);
823 mthca_cleanup_pd_table(dev);
829 mthca_uar_free(dev, &dev->driver_uar);
832 mthca_cleanup_uar_table(dev);
836 static int __devinit mthca_request_regions(struct pci_dev *pdev,
842 * We can't just use pci_request_regions() because the MSI-X
843 * table is right in the middle of the first BAR. If we did
844 * pci_request_region and grab all of the first BAR, then
845 * setting up MSI-X would fail, since the PCI core wants to do
846 * request_mem_region on the MSI-X vector table.
848 * So just request what we need right now, and request any
849 * other regions we need when setting up EQs.
851 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
852 MTHCA_HCR_SIZE, DRV_NAME))
855 err = pci_request_region(pdev, 2, DRV_NAME);
857 goto err_bar2_failed;
860 err = pci_request_region(pdev, 4, DRV_NAME);
862 goto err_bar4_failed;
868 pci_release_region(pdev, 2);
871 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
877 static void mthca_release_regions(struct pci_dev *pdev,
881 pci_release_region(pdev, 4);
883 pci_release_region(pdev, 2);
885 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
889 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
891 struct msix_entry entries[3];
894 entries[0].entry = 0;
895 entries[1].entry = 1;
896 entries[2].entry = 2;
898 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
901 mthca_info(mdev, "Only %d MSI-X vectors available, "
902 "not using MSI-X\n", err);
906 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
907 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
908 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
913 /* Types of supported HCA */
916 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
917 ARBEL_NATIVE, /* MT25208 with extended features */
921 #define MTHCA_FW_VER(major, minor, subminor) \
922 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
928 } mthca_hca_table[] = {
929 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 },
930 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 },
931 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 },
932 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 }
935 static int __devinit mthca_init_one(struct pci_dev *pdev,
936 const struct pci_device_id *id)
938 static int mthca_version_printed = 0;
941 struct mthca_dev *mdev;
943 if (!mthca_version_printed) {
944 printk(KERN_INFO "%s", mthca_version);
945 ++mthca_version_printed;
948 printk(KERN_INFO PFX "Initializing %s\n",
951 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
952 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
953 pci_name(pdev), id->driver_data);
957 err = pci_enable_device(pdev);
959 dev_err(&pdev->dev, "Cannot enable PCI device, "
965 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
968 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
969 pci_resource_len(pdev, 0) != 1 << 20) {
970 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
972 goto err_disable_pdev;
974 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
975 pci_resource_len(pdev, 2) != 1 << 23) {
976 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
978 goto err_disable_pdev;
980 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
983 err = mthca_request_regions(pdev, ddr_hidden);
985 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
987 goto err_disable_pdev;
990 pci_set_master(pdev);
992 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
994 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
995 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
997 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1001 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1003 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1004 "consistent PCI DMA mask.\n");
1005 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1007 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1013 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1015 dev_err(&pdev->dev, "Device struct alloc failed, "
1024 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1025 if (mthca_hca_table[id->driver_data].is_memfree)
1026 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE;
1027 if (mthca_hca_table[id->driver_data].is_pcie)
1028 mdev->mthca_flags |= MTHCA_FLAG_PCIE;
1031 * Now reset the HCA before we touch the PCI capabilities or
1032 * attempt a firmware command, since a boot ROM may have left
1033 * the HCA in an undefined state.
1035 err = mthca_reset(mdev);
1037 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1041 if (msi_x && !mthca_enable_msi_x(mdev))
1042 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1043 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1044 !pci_enable_msi(pdev))
1045 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1047 if (mthca_cmd_init(mdev)) {
1048 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1052 err = mthca_tune_pci(mdev);
1056 err = mthca_init_hca(mdev);
1060 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
1061 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
1062 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1063 (int) (mdev->fw_ver & 0xffff),
1064 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
1065 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
1066 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
1067 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1070 err = mthca_setup_hca(mdev);
1074 err = mthca_register_device(mdev);
1078 err = mthca_create_agents(mdev);
1080 goto err_unregister;
1082 pci_set_drvdata(pdev, mdev);
1087 mthca_unregister_device(mdev);
1090 mthca_cleanup_mcg_table(mdev);
1091 mthca_cleanup_av_table(mdev);
1092 mthca_cleanup_qp_table(mdev);
1093 mthca_cleanup_srq_table(mdev);
1094 mthca_cleanup_cq_table(mdev);
1095 mthca_cmd_use_polling(mdev);
1096 mthca_cleanup_eq_table(mdev);
1098 mthca_pd_free(mdev, &mdev->driver_pd);
1100 mthca_cleanup_mr_table(mdev);
1101 mthca_cleanup_pd_table(mdev);
1102 mthca_cleanup_uar_table(mdev);
1105 mthca_close_hca(mdev);
1108 mthca_cmd_cleanup(mdev);
1111 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1112 pci_disable_msix(pdev);
1113 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1114 pci_disable_msi(pdev);
1116 ib_dealloc_device(&mdev->ib_dev);
1119 mthca_release_regions(pdev, ddr_hidden);
1122 pci_disable_device(pdev);
1123 pci_set_drvdata(pdev, NULL);
1127 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1129 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1134 mthca_free_agents(mdev);
1135 mthca_unregister_device(mdev);
1137 for (p = 1; p <= mdev->limits.num_ports; ++p)
1138 mthca_CLOSE_IB(mdev, p, &status);
1140 mthca_cleanup_mcg_table(mdev);
1141 mthca_cleanup_av_table(mdev);
1142 mthca_cleanup_qp_table(mdev);
1143 mthca_cleanup_srq_table(mdev);
1144 mthca_cleanup_cq_table(mdev);
1145 mthca_cmd_use_polling(mdev);
1146 mthca_cleanup_eq_table(mdev);
1148 mthca_pd_free(mdev, &mdev->driver_pd);
1150 mthca_cleanup_mr_table(mdev);
1151 mthca_cleanup_pd_table(mdev);
1154 mthca_uar_free(mdev, &mdev->driver_uar);
1155 mthca_cleanup_uar_table(mdev);
1156 mthca_close_hca(mdev);
1157 mthca_cmd_cleanup(mdev);
1159 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1160 pci_disable_msix(pdev);
1161 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1162 pci_disable_msi(pdev);
1164 ib_dealloc_device(&mdev->ib_dev);
1165 mthca_release_regions(pdev, mdev->mthca_flags &
1166 MTHCA_FLAG_DDR_HIDDEN);
1167 pci_disable_device(pdev);
1168 pci_set_drvdata(pdev, NULL);
1172 static struct pci_device_id mthca_pci_table[] = {
1173 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1174 .driver_data = TAVOR },
1175 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1176 .driver_data = TAVOR },
1177 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1178 .driver_data = ARBEL_COMPAT },
1179 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1180 .driver_data = ARBEL_COMPAT },
1181 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1182 .driver_data = ARBEL_NATIVE },
1183 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1184 .driver_data = ARBEL_NATIVE },
1185 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1186 .driver_data = SINAI },
1187 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1188 .driver_data = SINAI },
1189 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1190 .driver_data = SINAI },
1191 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1192 .driver_data = SINAI },
1196 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1198 static struct pci_driver mthca_driver = {
1200 .owner = THIS_MODULE,
1201 .id_table = mthca_pci_table,
1202 .probe = mthca_init_one,
1203 .remove = __devexit_p(mthca_remove_one)
1206 static int __init mthca_init(void)
1210 ret = pci_register_driver(&mthca_driver);
1211 return ret < 0 ? ret : 0;
1214 static void __exit mthca_cleanup(void)
1216 pci_unregister_driver(&mthca_driver);
1219 module_init(mthca_init);
1220 module_exit(mthca_cleanup);