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/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);
54 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
56 int mthca_debug_level = 0;
57 module_param_named(debug_level, mthca_debug_level, int, 0644);
58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
60 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
65 module_param(msi_x, int, 0444);
66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
68 #else /* CONFIG_PCI_MSI */
72 #endif /* CONFIG_PCI_MSI */
74 static int tune_pci = 0;
75 module_param(tune_pci, int, 0444);
76 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
78 DEFINE_MUTEX(mthca_device_mutex);
80 #define MTHCA_DEFAULT_NUM_QP (1 << 16)
81 #define MTHCA_DEFAULT_RDB_PER_QP (1 << 2)
82 #define MTHCA_DEFAULT_NUM_CQ (1 << 16)
83 #define MTHCA_DEFAULT_NUM_MCG (1 << 13)
84 #define MTHCA_DEFAULT_NUM_MPT (1 << 17)
85 #define MTHCA_DEFAULT_NUM_MTT (1 << 20)
86 #define MTHCA_DEFAULT_NUM_UDAV (1 << 15)
87 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
88 #define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18)
90 static struct mthca_profile hca_profile = {
91 .num_qp = MTHCA_DEFAULT_NUM_QP,
92 .rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP,
93 .num_cq = MTHCA_DEFAULT_NUM_CQ,
94 .num_mcg = MTHCA_DEFAULT_NUM_MCG,
95 .num_mpt = MTHCA_DEFAULT_NUM_MPT,
96 .num_mtt = MTHCA_DEFAULT_NUM_MTT,
97 .num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */
98 .fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
99 .uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */
102 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
103 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
105 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
106 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
108 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
109 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
111 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
112 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
114 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
115 MODULE_PARM_DESC(num_mpt,
116 "maximum number of memory protection table entries per HCA");
118 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
119 MODULE_PARM_DESC(num_mtt,
120 "maximum number of memory translation table segments per HCA");
122 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
123 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
125 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
126 MODULE_PARM_DESC(fmr_reserved_mtts,
127 "number of memory translation table segments reserved for FMR");
129 static char mthca_version[] __devinitdata =
130 DRV_NAME ": Mellanox InfiniBand HCA driver v"
131 DRV_VERSION " (" DRV_RELDATE ")\n";
133 static int mthca_tune_pci(struct mthca_dev *mdev)
138 /* First try to max out Read Byte Count */
139 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
140 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
141 mthca_err(mdev, "Couldn't set PCI-X max read count, "
145 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
146 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
148 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
149 if (pcie_set_readrq(mdev->pdev, 4096)) {
150 mthca_err(mdev, "Couldn't write PCI Express read request, "
154 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
155 mthca_info(mdev, "No PCI Express capability, "
156 "not setting Max Read Request Size.\n");
161 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
166 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
168 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
172 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
173 "aborting.\n", status);
176 if (dev_lim->min_page_sz > PAGE_SIZE) {
177 mthca_err(mdev, "HCA minimum page size of %d bigger than "
178 "kernel PAGE_SIZE of %ld, aborting.\n",
179 dev_lim->min_page_sz, PAGE_SIZE);
182 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
183 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
185 dev_lim->num_ports, MTHCA_MAX_PORTS);
189 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
190 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
191 "PCI resource 2 size of 0x%llx, aborting.\n",
193 (unsigned long long)pci_resource_len(mdev->pdev, 2));
197 mdev->limits.num_ports = dev_lim->num_ports;
198 mdev->limits.vl_cap = dev_lim->max_vl;
199 mdev->limits.mtu_cap = dev_lim->max_mtu;
200 mdev->limits.gid_table_len = dev_lim->max_gids;
201 mdev->limits.pkey_table_len = dev_lim->max_pkeys;
202 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
203 mdev->limits.max_sg = dev_lim->max_sg;
204 mdev->limits.max_wqes = dev_lim->max_qp_sz;
205 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp;
206 mdev->limits.reserved_qps = dev_lim->reserved_qps;
207 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz;
208 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
209 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
210 mdev->limits.max_desc_sz = dev_lim->max_desc_sz;
211 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev);
213 * Subtract 1 from the limit because we need to allocate a
214 * spare CQE so the HCA HW can tell the difference between an
215 * empty CQ and a full CQ.
217 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1;
218 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
219 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
220 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
221 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
222 mdev->limits.reserved_uars = dev_lim->reserved_uars;
223 mdev->limits.reserved_pds = dev_lim->reserved_pds;
224 mdev->limits.port_width_cap = dev_lim->max_port_width;
225 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
226 mdev->limits.flags = dev_lim->flags;
228 * For old FW that doesn't return static rate support, use a
229 * value of 0x3 (only static rate values of 0 or 1 are handled),
230 * except on Sinai, where even old FW can handle static rate
233 if (dev_lim->stat_rate_support)
234 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
235 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
236 mdev->limits.stat_rate_support = 0xf;
238 mdev->limits.stat_rate_support = 0x3;
240 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
241 May be doable since hardware supports it for SRQ.
243 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
245 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
246 supported by driver. */
247 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
248 IB_DEVICE_PORT_ACTIVE_EVENT |
249 IB_DEVICE_SYS_IMAGE_GUID |
250 IB_DEVICE_RC_RNR_NAK_GEN;
252 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
253 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
255 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
256 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
258 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
259 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
261 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
262 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
264 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
265 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
267 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
268 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
270 if (mthca_is_memfree(mdev))
271 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
272 mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
277 static int mthca_init_tavor(struct mthca_dev *mdev)
281 struct mthca_dev_lim dev_lim;
282 struct mthca_profile profile;
283 struct mthca_init_hca_param init_hca;
285 err = mthca_SYS_EN(mdev, &status);
287 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
291 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
292 "aborting.\n", status);
296 err = mthca_QUERY_FW(mdev, &status);
298 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
302 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
303 "aborting.\n", status);
307 err = mthca_QUERY_DDR(mdev, &status);
309 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
313 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
314 "aborting.\n", status);
319 err = mthca_dev_lim(mdev, &dev_lim);
321 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
325 profile = hca_profile;
326 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
327 profile.uarc_size = 0;
328 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
329 profile.num_srq = dev_lim.max_srqs;
331 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
335 err = mthca_INIT_HCA(mdev, &init_hca, &status);
337 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
341 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
342 "aborting.\n", status);
350 mthca_SYS_DIS(mdev, &status);
355 static int mthca_load_fw(struct mthca_dev *mdev)
360 /* FIXME: use HCA-attached memory for FW if present */
362 mdev->fw.arbel.fw_icm =
363 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
364 GFP_HIGHUSER | __GFP_NOWARN, 0);
365 if (!mdev->fw.arbel.fw_icm) {
366 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
370 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
372 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
376 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
380 err = mthca_RUN_FW(mdev, &status);
382 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
386 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
394 mthca_UNMAP_FA(mdev, &status);
397 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
401 static int mthca_init_icm(struct mthca_dev *mdev,
402 struct mthca_dev_lim *dev_lim,
403 struct mthca_init_hca_param *init_hca,
410 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
412 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
416 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
417 "aborting.\n", status);
421 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
422 (unsigned long long) icm_size >> 10,
423 (unsigned long long) aux_pages << 2);
425 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
426 GFP_HIGHUSER | __GFP_NOWARN, 0);
427 if (!mdev->fw.arbel.aux_icm) {
428 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
432 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
434 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
438 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
443 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
445 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
449 /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
450 mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
451 dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
453 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
455 mdev->limits.num_mtt_segs,
456 mdev->limits.reserved_mtts,
458 if (!mdev->mr_table.mtt_table) {
459 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
464 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
465 dev_lim->mpt_entry_sz,
466 mdev->limits.num_mpts,
467 mdev->limits.reserved_mrws,
469 if (!mdev->mr_table.mpt_table) {
470 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
475 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
476 dev_lim->qpc_entry_sz,
477 mdev->limits.num_qps,
478 mdev->limits.reserved_qps,
480 if (!mdev->qp_table.qp_table) {
481 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
486 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
487 dev_lim->eqpc_entry_sz,
488 mdev->limits.num_qps,
489 mdev->limits.reserved_qps,
491 if (!mdev->qp_table.eqp_table) {
492 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
497 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
498 MTHCA_RDB_ENTRY_SIZE,
499 mdev->limits.num_qps <<
500 mdev->qp_table.rdb_shift, 0,
502 if (!mdev->qp_table.rdb_table) {
503 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
508 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
509 dev_lim->cqc_entry_sz,
510 mdev->limits.num_cqs,
511 mdev->limits.reserved_cqs,
513 if (!mdev->cq_table.table) {
514 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
519 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
520 mdev->srq_table.table =
521 mthca_alloc_icm_table(mdev, init_hca->srqc_base,
522 dev_lim->srq_entry_sz,
523 mdev->limits.num_srqs,
524 mdev->limits.reserved_srqs,
526 if (!mdev->srq_table.table) {
527 mthca_err(mdev, "Failed to map SRQ context memory, "
535 * It's not strictly required, but for simplicity just map the
536 * whole multicast group table now. The table isn't very big
537 * and it's a lot easier than trying to track ref counts.
539 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
540 MTHCA_MGM_ENTRY_SIZE,
541 mdev->limits.num_mgms +
542 mdev->limits.num_amgms,
543 mdev->limits.num_mgms +
544 mdev->limits.num_amgms,
546 if (!mdev->mcg_table.table) {
547 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
555 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
556 mthca_free_icm_table(mdev, mdev->srq_table.table);
559 mthca_free_icm_table(mdev, mdev->cq_table.table);
562 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
565 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
568 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
571 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
574 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
577 mthca_unmap_eq_icm(mdev);
580 mthca_UNMAP_ICM_AUX(mdev, &status);
583 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
588 static void mthca_free_icms(struct mthca_dev *mdev)
592 mthca_free_icm_table(mdev, mdev->mcg_table.table);
593 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
594 mthca_free_icm_table(mdev, mdev->srq_table.table);
595 mthca_free_icm_table(mdev, mdev->cq_table.table);
596 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
597 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
598 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
599 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
600 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
601 mthca_unmap_eq_icm(mdev);
603 mthca_UNMAP_ICM_AUX(mdev, &status);
604 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
607 static int mthca_init_arbel(struct mthca_dev *mdev)
609 struct mthca_dev_lim dev_lim;
610 struct mthca_profile profile;
611 struct mthca_init_hca_param init_hca;
616 err = mthca_QUERY_FW(mdev, &status);
618 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
622 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
623 "aborting.\n", status);
627 err = mthca_ENABLE_LAM(mdev, &status);
629 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
632 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
633 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
634 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
636 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
637 "aborting.\n", status);
641 err = mthca_load_fw(mdev);
643 mthca_err(mdev, "Failed to start FW, aborting.\n");
647 err = mthca_dev_lim(mdev, &dev_lim);
649 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
653 profile = hca_profile;
654 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
655 profile.num_udav = 0;
656 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
657 profile.num_srq = dev_lim.max_srqs;
659 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
660 if ((int) icm_size < 0) {
665 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
669 err = mthca_INIT_HCA(mdev, &init_hca, &status);
671 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
675 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
676 "aborting.\n", status);
684 mthca_free_icms(mdev);
687 mthca_UNMAP_FA(mdev, &status);
688 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
691 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
692 mthca_DISABLE_LAM(mdev, &status);
697 static void mthca_close_hca(struct mthca_dev *mdev)
701 mthca_CLOSE_HCA(mdev, 0, &status);
703 if (mthca_is_memfree(mdev)) {
704 mthca_free_icms(mdev);
706 mthca_UNMAP_FA(mdev, &status);
707 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
709 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
710 mthca_DISABLE_LAM(mdev, &status);
712 mthca_SYS_DIS(mdev, &status);
715 static int mthca_init_hca(struct mthca_dev *mdev)
719 struct mthca_adapter adapter;
721 if (mthca_is_memfree(mdev))
722 err = mthca_init_arbel(mdev);
724 err = mthca_init_tavor(mdev);
729 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
731 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
735 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
736 "aborting.\n", status);
741 mdev->eq_table.inta_pin = adapter.inta_pin;
742 if (!mthca_is_memfree(mdev))
743 mdev->rev_id = adapter.revision_id;
744 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
749 mthca_close_hca(mdev);
753 static int mthca_setup_hca(struct mthca_dev *dev)
758 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
760 err = mthca_init_uar_table(dev);
762 mthca_err(dev, "Failed to initialize "
763 "user access region table, aborting.\n");
767 err = mthca_uar_alloc(dev, &dev->driver_uar);
769 mthca_err(dev, "Failed to allocate driver access region, "
771 goto err_uar_table_free;
774 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
776 mthca_err(dev, "Couldn't map kernel access region, "
782 err = mthca_init_pd_table(dev);
784 mthca_err(dev, "Failed to initialize "
785 "protection domain table, aborting.\n");
789 err = mthca_init_mr_table(dev);
791 mthca_err(dev, "Failed to initialize "
792 "memory region table, aborting.\n");
793 goto err_pd_table_free;
796 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
798 mthca_err(dev, "Failed to create driver PD, "
800 goto err_mr_table_free;
803 err = mthca_init_eq_table(dev);
805 mthca_err(dev, "Failed to initialize "
806 "event queue table, aborting.\n");
810 err = mthca_cmd_use_events(dev);
812 mthca_err(dev, "Failed to switch to event-driven "
813 "firmware commands, aborting.\n");
814 goto err_eq_table_free;
817 err = mthca_NOP(dev, &status);
819 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
820 mthca_warn(dev, "NOP command failed to generate interrupt "
822 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
823 mthca_warn(dev, "Trying again with MSI-X disabled.\n");
825 mthca_err(dev, "NOP command failed to generate interrupt "
826 "(IRQ %d), aborting.\n",
828 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
834 mthca_dbg(dev, "NOP command IRQ test passed\n");
836 err = mthca_init_cq_table(dev);
838 mthca_err(dev, "Failed to initialize "
839 "completion queue table, aborting.\n");
843 err = mthca_init_srq_table(dev);
845 mthca_err(dev, "Failed to initialize "
846 "shared receive queue table, aborting.\n");
847 goto err_cq_table_free;
850 err = mthca_init_qp_table(dev);
852 mthca_err(dev, "Failed to initialize "
853 "queue pair table, aborting.\n");
854 goto err_srq_table_free;
857 err = mthca_init_av_table(dev);
859 mthca_err(dev, "Failed to initialize "
860 "address vector table, aborting.\n");
861 goto err_qp_table_free;
864 err = mthca_init_mcg_table(dev);
866 mthca_err(dev, "Failed to initialize "
867 "multicast group table, aborting.\n");
868 goto err_av_table_free;
874 mthca_cleanup_av_table(dev);
877 mthca_cleanup_qp_table(dev);
880 mthca_cleanup_srq_table(dev);
883 mthca_cleanup_cq_table(dev);
886 mthca_cmd_use_polling(dev);
889 mthca_cleanup_eq_table(dev);
892 mthca_pd_free(dev, &dev->driver_pd);
895 mthca_cleanup_mr_table(dev);
898 mthca_cleanup_pd_table(dev);
904 mthca_uar_free(dev, &dev->driver_uar);
907 mthca_cleanup_uar_table(dev);
911 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
916 * We can't just use pci_request_regions() because the MSI-X
917 * table is right in the middle of the first BAR. If we did
918 * pci_request_region and grab all of the first BAR, then
919 * setting up MSI-X would fail, since the PCI core wants to do
920 * request_mem_region on the MSI-X vector table.
922 * So just request what we need right now, and request any
923 * other regions we need when setting up EQs.
925 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
926 MTHCA_HCR_SIZE, DRV_NAME))
929 err = pci_request_region(pdev, 2, DRV_NAME);
931 goto err_bar2_failed;
934 err = pci_request_region(pdev, 4, DRV_NAME);
936 goto err_bar4_failed;
942 pci_release_region(pdev, 2);
945 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
951 static void mthca_release_regions(struct pci_dev *pdev,
955 pci_release_region(pdev, 4);
957 pci_release_region(pdev, 2);
959 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
963 static int mthca_enable_msi_x(struct mthca_dev *mdev)
965 struct msix_entry entries[3];
968 entries[0].entry = 0;
969 entries[1].entry = 1;
970 entries[2].entry = 2;
972 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
975 mthca_info(mdev, "Only %d MSI-X vectors available, "
976 "not using MSI-X\n", err);
980 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
981 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
982 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
987 /* Types of supported HCA */
990 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
991 ARBEL_NATIVE, /* MT25208 with extended features */
995 #define MTHCA_FW_VER(major, minor, subminor) \
996 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
1001 } mthca_hca_table[] = {
1002 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
1004 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1005 .flags = MTHCA_FLAG_PCIE },
1006 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
1007 .flags = MTHCA_FLAG_MEMFREE |
1009 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1010 .flags = MTHCA_FLAG_MEMFREE |
1012 MTHCA_FLAG_SINAI_OPT }
1015 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1019 struct mthca_dev *mdev;
1021 printk(KERN_INFO PFX "Initializing %s\n",
1024 err = pci_enable_device(pdev);
1026 dev_err(&pdev->dev, "Cannot enable PCI device, "
1032 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1035 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1036 pci_resource_len(pdev, 0) != 1 << 20) {
1037 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1039 goto err_disable_pdev;
1041 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1042 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1044 goto err_disable_pdev;
1046 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1049 err = mthca_request_regions(pdev, ddr_hidden);
1051 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1053 goto err_disable_pdev;
1056 pci_set_master(pdev);
1058 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1060 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1061 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1063 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1067 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1069 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1070 "consistent PCI DMA mask.\n");
1071 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1073 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1079 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1081 dev_err(&pdev->dev, "Device struct alloc failed, "
1089 mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1091 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1094 * Now reset the HCA before we touch the PCI capabilities or
1095 * attempt a firmware command, since a boot ROM may have left
1096 * the HCA in an undefined state.
1098 err = mthca_reset(mdev);
1100 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1104 if (mthca_cmd_init(mdev)) {
1105 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1109 err = mthca_tune_pci(mdev);
1113 err = mthca_init_hca(mdev);
1117 if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1118 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1119 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1120 (int) (mdev->fw_ver & 0xffff),
1121 (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1122 (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1123 (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1124 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1127 if (msi_x && !mthca_enable_msi_x(mdev))
1128 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1130 err = mthca_setup_hca(mdev);
1131 if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1132 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1133 pci_disable_msix(pdev);
1134 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1136 err = mthca_setup_hca(mdev);
1142 err = mthca_register_device(mdev);
1146 err = mthca_create_agents(mdev);
1148 goto err_unregister;
1150 pci_set_drvdata(pdev, mdev);
1151 mdev->hca_type = hca_type;
1156 mthca_unregister_device(mdev);
1159 mthca_cleanup_mcg_table(mdev);
1160 mthca_cleanup_av_table(mdev);
1161 mthca_cleanup_qp_table(mdev);
1162 mthca_cleanup_srq_table(mdev);
1163 mthca_cleanup_cq_table(mdev);
1164 mthca_cmd_use_polling(mdev);
1165 mthca_cleanup_eq_table(mdev);
1167 mthca_pd_free(mdev, &mdev->driver_pd);
1169 mthca_cleanup_mr_table(mdev);
1170 mthca_cleanup_pd_table(mdev);
1171 mthca_cleanup_uar_table(mdev);
1174 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1175 pci_disable_msix(pdev);
1177 mthca_close_hca(mdev);
1180 mthca_cmd_cleanup(mdev);
1183 ib_dealloc_device(&mdev->ib_dev);
1186 mthca_release_regions(pdev, ddr_hidden);
1189 pci_disable_device(pdev);
1190 pci_set_drvdata(pdev, NULL);
1194 static void __mthca_remove_one(struct pci_dev *pdev)
1196 struct mthca_dev *mdev = pci_get_drvdata(pdev);
1201 mthca_free_agents(mdev);
1202 mthca_unregister_device(mdev);
1204 for (p = 1; p <= mdev->limits.num_ports; ++p)
1205 mthca_CLOSE_IB(mdev, p, &status);
1207 mthca_cleanup_mcg_table(mdev);
1208 mthca_cleanup_av_table(mdev);
1209 mthca_cleanup_qp_table(mdev);
1210 mthca_cleanup_srq_table(mdev);
1211 mthca_cleanup_cq_table(mdev);
1212 mthca_cmd_use_polling(mdev);
1213 mthca_cleanup_eq_table(mdev);
1215 mthca_pd_free(mdev, &mdev->driver_pd);
1217 mthca_cleanup_mr_table(mdev);
1218 mthca_cleanup_pd_table(mdev);
1221 mthca_uar_free(mdev, &mdev->driver_uar);
1222 mthca_cleanup_uar_table(mdev);
1223 mthca_close_hca(mdev);
1224 mthca_cmd_cleanup(mdev);
1226 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1227 pci_disable_msix(pdev);
1229 ib_dealloc_device(&mdev->ib_dev);
1230 mthca_release_regions(pdev, mdev->mthca_flags &
1231 MTHCA_FLAG_DDR_HIDDEN);
1232 pci_disable_device(pdev);
1233 pci_set_drvdata(pdev, NULL);
1237 int __mthca_restart_one(struct pci_dev *pdev)
1239 struct mthca_dev *mdev;
1242 mdev = pci_get_drvdata(pdev);
1245 hca_type = mdev->hca_type;
1246 __mthca_remove_one(pdev);
1247 return __mthca_init_one(pdev, hca_type);
1250 static int __devinit mthca_init_one(struct pci_dev *pdev,
1251 const struct pci_device_id *id)
1253 static int mthca_version_printed = 0;
1256 mutex_lock(&mthca_device_mutex);
1258 if (!mthca_version_printed) {
1259 printk(KERN_INFO "%s", mthca_version);
1260 ++mthca_version_printed;
1263 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1264 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1265 pci_name(pdev), id->driver_data);
1266 mutex_unlock(&mthca_device_mutex);
1270 ret = __mthca_init_one(pdev, id->driver_data);
1272 mutex_unlock(&mthca_device_mutex);
1277 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1279 mutex_lock(&mthca_device_mutex);
1280 __mthca_remove_one(pdev);
1281 mutex_unlock(&mthca_device_mutex);
1284 static struct pci_device_id mthca_pci_table[] = {
1285 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1286 .driver_data = TAVOR },
1287 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1288 .driver_data = TAVOR },
1289 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1290 .driver_data = ARBEL_COMPAT },
1291 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1292 .driver_data = ARBEL_COMPAT },
1293 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1294 .driver_data = ARBEL_NATIVE },
1295 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1296 .driver_data = ARBEL_NATIVE },
1297 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1298 .driver_data = SINAI },
1299 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1300 .driver_data = SINAI },
1301 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1302 .driver_data = SINAI },
1303 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1304 .driver_data = SINAI },
1308 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1310 static struct pci_driver mthca_driver = {
1312 .id_table = mthca_pci_table,
1313 .probe = mthca_init_one,
1314 .remove = __devexit_p(mthca_remove_one)
1317 static void __init __mthca_check_profile_val(const char *name, int *pval,
1320 /* value must be positive and power of 2 */
1321 int old_pval = *pval;
1324 *pval = pval_default;
1326 *pval = roundup_pow_of_two(old_pval);
1328 if (old_pval != *pval) {
1329 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1331 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1335 #define mthca_check_profile_val(name, default) \
1336 __mthca_check_profile_val(#name, &hca_profile.name, default)
1338 static void __init mthca_validate_profile(void)
1340 mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP);
1341 mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP);
1342 mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ);
1343 mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG);
1344 mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT);
1345 mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT);
1346 mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV);
1347 mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1349 if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1350 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1351 hca_profile.fmr_reserved_mtts);
1352 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1353 hca_profile.num_mtt);
1354 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1355 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1356 hca_profile.fmr_reserved_mtts);
1360 static int __init mthca_init(void)
1364 mthca_validate_profile();
1366 ret = mthca_catas_init();
1370 ret = pci_register_driver(&mthca_driver);
1372 mthca_catas_cleanup();
1379 static void __exit mthca_cleanup(void)
1381 pci_unregister_driver(&mthca_driver);
1382 mthca_catas_cleanup();
1385 module_init(mthca_init);
1386 module_exit(mthca_cleanup);