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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
Tom Duffycd4e8fb2005-06-27 14:36:37 -07003 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
Roland Dreier2a1d9b72005-08-10 23:03:10 -07004 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
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:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
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.
24 *
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
32 * SOFTWARE.
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 */
34
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include <linux/module.h>
36#include <linux/init.h>
37#include <linux/errno.h>
38#include <linux/pci.h>
39#include <linux/interrupt.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090040#include <linux/gfp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
42#include "mthca_dev.h"
43#include "mthca_config_reg.h"
44#include "mthca_cmd.h"
45#include "mthca_profile.h"
46#include "mthca_memfree.h"
Roland Dreier12103dc2008-05-16 14:58:44 -070047#include "mthca_wqe.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49MODULE_AUTHOR("Roland Dreier");
50MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
51MODULE_LICENSE("Dual BSD/GPL");
52MODULE_VERSION(DRV_VERSION);
53
Roland Dreier227c9392006-04-02 14:39:20 -070054#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
55
56int mthca_debug_level = 0;
57module_param_named(debug_level, mthca_debug_level, int, 0644);
58MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
59
60#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
61
Linus Torvalds1da177e2005-04-16 15:20:36 -070062#ifdef CONFIG_PCI_MSI
63
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +030064static int msi_x = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -070065module_param(msi_x, int, 0444);
66MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
67
Linus Torvalds1da177e2005-04-16 15:20:36 -070068#else /* CONFIG_PCI_MSI */
69
70#define msi_x (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72#endif /* CONFIG_PCI_MSI */
73
Michael S. Tsirkinabf45db2006-04-05 15:47:16 +030074static int tune_pci = 0;
75module_param(tune_pci, int, 0444);
76MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
77
Roland Dreier0b0df6f2006-12-15 20:55:28 -080078DEFINE_MUTEX(mthca_device_mutex);
Jack Morgensteinb3b30f52006-08-15 21:11:18 +030079
Leonid Arsh82da7032006-12-10 13:40:17 +020080#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)
89
90static 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 */
100};
101
102module_param_named(num_qp, hca_profile.num_qp, int, 0444);
103MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
104
105module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
106MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
107
108module_param_named(num_cq, hca_profile.num_cq, int, 0444);
109MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
110
111module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
112MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
113
114module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
115MODULE_PARM_DESC(num_mpt,
116 "maximum number of memory protection table entries per HCA");
117
118module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
119MODULE_PARM_DESC(num_mtt,
120 "maximum number of memory translation table segments per HCA");
121
122module_param_named(num_udav, hca_profile.num_udav, int, 0444);
123MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
124
125module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
126MODULE_PARM_DESC(fmr_reserved_mtts,
127 "number of memory translation table segments reserved for FMR");
128
Eli Cohenc1f67a82009-05-27 14:36:16 -0700129static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
130module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
131MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)");
132
Greg Kroah-Hartman1e6d9ab2012-12-21 15:08:40 -0800133static char mthca_version[] =
Bernhard Fischer177214a2005-06-27 14:36:39 -0700134 DRV_NAME ": Mellanox InfiniBand HCA driver v"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135 DRV_VERSION " (" DRV_RELDATE ")\n";
136
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800137static int mthca_tune_pci(struct mthca_dev *mdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138{
Michael S. Tsirkinabf45db2006-04-05 15:47:16 +0300139 if (!tune_pci)
140 return 0;
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 /* First try to max out Read Byte Count */
Peter Orubaa855b1a2007-08-10 13:54:33 -0700143 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
144 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
145 mthca_err(mdev, "Couldn't set PCI-X max read count, "
146 "aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 return -ENODEV;
148 }
Roland Dreier68a3c212005-04-16 15:26:34 -0700149 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
151
Jon Mason9b899252011-06-27 17:39:54 +0000152 if (pci_is_pcie(mdev->pdev)) {
Peter Orubaa855b1a2007-08-10 13:54:33 -0700153 if (pcie_set_readrq(mdev->pdev, 4096)) {
154 mthca_err(mdev, "Couldn't write PCI Express read request, "
155 "aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 return -ENODEV;
157 }
Roland Dreier68a3c212005-04-16 15:26:34 -0700158 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 mthca_info(mdev, "No PCI Express capability, "
160 "not setting Max Read Request Size.\n");
161
162 return 0;
163}
164
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800165static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166{
167 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
Eli Cohenc1f67a82009-05-27 14:36:16 -0700169 mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000170 err = mthca_QUERY_DEV_LIM(mdev, dev_lim);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000172 mthca_err(mdev, "QUERY_DEV_LIM command returned %d"
173 ", aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 return err;
175 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 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);
180 return -ENODEV;
181 }
182 if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
183 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
184 "aborting.\n",
185 dev_lim->num_ports, MTHCA_MAX_PORTS);
186 return -ENODEV;
187 }
188
Michael S. Tsirkincbd29812006-01-30 15:20:35 -0800189 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
190 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
Greg Kroah-Hartmane29419f2006-06-12 15:20:16 -0700191 "PCI resource 2 size of 0x%llx, aborting.\n",
192 dev_lim->uar_size,
193 (unsigned long long)pci_resource_len(mdev->pdev, 2));
Michael S. Tsirkincbd29812006-01-30 15:20:35 -0800194 return -ENODEV;
195 }
196
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 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;
Roland Dreier12103dc2008-05-16 14:58:44 -0700203 /*
204 * Need to allow for worst case send WQE overhead and check
205 * whether max_desc_sz imposes a lower limit than max_sg; UD
206 * send has the biggest overhead.
207 */
208 mdev->limits.max_sg = min_t(int, dev_lim->max_sg,
209 (dev_lim->max_desc_sz -
210 sizeof (struct mthca_next_seg) -
211 (mthca_is_memfree(mdev) ?
212 sizeof (struct mthca_arbel_ud_seg) :
213 sizeof (struct mthca_tavor_ud_seg))) /
214 sizeof (struct mthca_data_seg));
Jack Morgensteinefaae8f2005-10-10 13:48:07 -0700215 mdev->limits.max_wqes = dev_lim->max_qp_sz;
216 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 mdev->limits.reserved_qps = dev_lim->reserved_qps;
Jack Morgensteinefaae8f2005-10-10 13:48:07 -0700218 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
220 mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
Jack Morgenstein77369ed2005-11-09 11:26:07 -0800221 mdev->limits.max_desc_sz = dev_lim->max_desc_sz;
Jack Morgenstein59fef3b2006-04-11 18:16:27 +0300222 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev);
Jack Morgensteinefaae8f2005-10-10 13:48:07 -0700223 /*
224 * Subtract 1 from the limit because we need to allocate a
225 * spare CQE so the HCA HW can tell the difference between an
226 * empty CQ and a full CQ.
227 */
228 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 mdev->limits.reserved_cqs = dev_lim->reserved_cqs;
230 mdev->limits.reserved_eqs = dev_lim->reserved_eqs;
231 mdev->limits.reserved_mtts = dev_lim->reserved_mtts;
232 mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
233 mdev->limits.reserved_uars = dev_lim->reserved_uars;
234 mdev->limits.reserved_pds = dev_lim->reserved_pds;
Roland Dreierda6561c2005-08-17 07:39:10 -0700235 mdev->limits.port_width_cap = dev_lim->max_port_width;
Jack Morgenstein0f69ce12005-11-04 16:03:32 -0800236 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
Jack Morgenstein33033b792005-09-26 12:30:02 -0700237 mdev->limits.flags = dev_lim->flags;
Jack Morgensteinbf6a9e32006-04-10 09:43:47 -0700238 /*
239 * For old FW that doesn't return static rate support, use a
240 * value of 0x3 (only static rate values of 0 or 1 are handled),
241 * except on Sinai, where even old FW can handle static rate
242 * values of 2 and 3.
243 */
244 if (dev_lim->stat_rate_support)
245 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
246 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
247 mdev->limits.stat_rate_support = 0xf;
248 else
249 mdev->limits.stat_rate_support = 0x3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250
251 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
252 May be doable since hardware supports it for SRQ.
253
254 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
255
256 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
257 supported by driver. */
258 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
259 IB_DEVICE_PORT_ACTIVE_EVENT |
260 IB_DEVICE_SYS_IMAGE_GUID |
261 IB_DEVICE_RC_RNR_NAK_GEN;
262
263 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
264 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
265
266 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
267 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
268
269 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
270 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
271
272 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
273 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
274
275 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
276 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
277
278 if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
279 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
280
Eli Cohen680b5752008-04-16 21:01:11 -0700281 if (mthca_is_memfree(mdev))
282 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
283 mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
284
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 return 0;
286}
287
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800288static int mthca_init_tavor(struct mthca_dev *mdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289{
Roland Dreier19773532008-04-16 21:01:13 -0700290 s64 size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 int err;
292 struct mthca_dev_lim dev_lim;
293 struct mthca_profile profile;
294 struct mthca_init_hca_param init_hca;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000296 err = mthca_SYS_EN(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000298 mthca_err(mdev, "SYS_EN command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 return err;
300 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000302 err = mthca_QUERY_FW(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000304 mthca_err(mdev, "QUERY_FW command returned %d,"
305 " aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306 goto err_disable;
307 }
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000308 err = mthca_QUERY_DDR(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000310 mthca_err(mdev, "QUERY_DDR command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 goto err_disable;
312 }
313
314 err = mthca_dev_lim(mdev, &dev_lim);
Jack Morgensteinaa2f9362006-01-05 16:12:01 -0800315 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000316 mthca_err(mdev, "QUERY_DEV_LIM command returned %d, aborting.\n", err);
Jack Morgensteinaa2f9362006-01-05 16:12:01 -0800317 goto err_disable;
318 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Leonid Arsh82da7032006-12-10 13:40:17 +0200320 profile = hca_profile;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
322 profile.uarc_size = 0;
Roland Dreierec34a922005-08-19 10:59:31 -0700323 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
324 profile.num_srq = dev_lim.max_srqs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
Roland Dreier19773532008-04-16 21:01:13 -0700326 size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
327 if (size < 0) {
328 err = size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 goto err_disable;
Roland Dreier19773532008-04-16 21:01:13 -0700330 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000332 err = mthca_INIT_HCA(mdev, &init_hca);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000334 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 goto err_disable;
336 }
337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 return 0;
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340err_disable:
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000341 mthca_SYS_DIS(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
343 return err;
344}
345
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800346static int mthca_load_fw(struct mthca_dev *mdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 int err;
349
350 /* FIXME: use HCA-attached memory for FW if present */
351
352 mdev->fw.arbel.fw_icm =
353 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200354 GFP_HIGHUSER | __GFP_NOWARN, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 if (!mdev->fw.arbel.fw_icm) {
356 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
357 return -ENOMEM;
358 }
359
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000360 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000362 mthca_err(mdev, "MAP_FA command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 goto err_free;
364 }
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000365 err = mthca_RUN_FW(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000367 mthca_err(mdev, "RUN_FW command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 goto err_unmap_fa;
369 }
370
371 return 0;
372
373err_unmap_fa:
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000374 mthca_UNMAP_FA(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
376err_free:
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200377 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 return err;
379}
380
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800381static int mthca_init_icm(struct mthca_dev *mdev,
382 struct mthca_dev_lim *dev_lim,
383 struct mthca_init_hca_param *init_hca,
384 u64 icm_size)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385{
386 u64 aux_pages;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 int err;
388
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000389 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000391 mthca_err(mdev, "SET_ICM_SIZE command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 return err;
393 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
395 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
396 (unsigned long long) icm_size >> 10,
397 (unsigned long long) aux_pages << 2);
398
399 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200400 GFP_HIGHUSER | __GFP_NOWARN, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 if (!mdev->fw.arbel.aux_icm) {
402 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
403 return -ENOMEM;
404 }
405
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000406 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000408 mthca_err(mdev, "MAP_ICM_AUX returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 goto err_free_aux;
410 }
411
412 err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
413 if (err) {
414 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
415 goto err_unmap_aux;
416 }
417
Michael S. Tsirkin1d1f19c2007-02-10 23:17:26 +0200418 /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
Eli Cohenc1f67a82009-05-27 14:36:16 -0700419 mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
420 dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
Michael S. Tsirkin1d1f19c2007-02-10 23:17:26 +0200421
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
Eli Cohenc1f67a82009-05-27 14:36:16 -0700423 mdev->limits.mtt_seg_size,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 mdev->limits.num_mtt_segs,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200425 mdev->limits.reserved_mtts,
426 1, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 if (!mdev->mr_table.mtt_table) {
428 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
429 err = -ENOMEM;
430 goto err_unmap_eq;
431 }
432
433 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
434 dev_lim->mpt_entry_sz,
435 mdev->limits.num_mpts,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200436 mdev->limits.reserved_mrws,
437 1, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 if (!mdev->mr_table.mpt_table) {
439 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
440 err = -ENOMEM;
441 goto err_unmap_mtt;
442 }
443
444 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
445 dev_lim->qpc_entry_sz,
446 mdev->limits.num_qps,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200447 mdev->limits.reserved_qps,
448 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 if (!mdev->qp_table.qp_table) {
450 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
451 err = -ENOMEM;
452 goto err_unmap_mpt;
453 }
454
455 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
456 dev_lim->eqpc_entry_sz,
457 mdev->limits.num_qps,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200458 mdev->limits.reserved_qps,
459 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 if (!mdev->qp_table.eqp_table) {
461 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
462 err = -ENOMEM;
463 goto err_unmap_qp;
464 }
465
Roland Dreier08aeb142005-04-16 15:26:34 -0700466 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
467 MTHCA_RDB_ENTRY_SIZE,
468 mdev->limits.num_qps <<
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200469 mdev->qp_table.rdb_shift, 0,
Roland Dreier08aeb142005-04-16 15:26:34 -0700470 0, 0);
471 if (!mdev->qp_table.rdb_table) {
472 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
473 err = -ENOMEM;
Roland Dreier19272d42005-04-16 15:26:35 -0700474 goto err_unmap_eqp;
Roland Dreier08aeb142005-04-16 15:26:34 -0700475 }
476
477 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
Roland Dreierec34a922005-08-19 10:59:31 -0700478 dev_lim->cqc_entry_sz,
479 mdev->limits.num_cqs,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200480 mdev->limits.reserved_cqs,
481 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 if (!mdev->cq_table.table) {
483 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
484 err = -ENOMEM;
Roland Dreier08aeb142005-04-16 15:26:34 -0700485 goto err_unmap_rdb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 }
487
Roland Dreierec34a922005-08-19 10:59:31 -0700488 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
489 mdev->srq_table.table =
490 mthca_alloc_icm_table(mdev, init_hca->srqc_base,
491 dev_lim->srq_entry_sz,
492 mdev->limits.num_srqs,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200493 mdev->limits.reserved_srqs,
494 0, 0);
Roland Dreierec34a922005-08-19 10:59:31 -0700495 if (!mdev->srq_table.table) {
496 mthca_err(mdev, "Failed to map SRQ context memory, "
497 "aborting.\n");
498 err = -ENOMEM;
499 goto err_unmap_cq;
500 }
501 }
502
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503 /*
504 * It's not strictly required, but for simplicity just map the
505 * whole multicast group table now. The table isn't very big
506 * and it's a lot easier than trying to track ref counts.
507 */
508 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
509 MTHCA_MGM_ENTRY_SIZE,
510 mdev->limits.num_mgms +
511 mdev->limits.num_amgms,
512 mdev->limits.num_mgms +
513 mdev->limits.num_amgms,
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200514 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515 if (!mdev->mcg_table.table) {
516 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
517 err = -ENOMEM;
Roland Dreierec34a922005-08-19 10:59:31 -0700518 goto err_unmap_srq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 }
520
521 return 0;
522
Roland Dreierec34a922005-08-19 10:59:31 -0700523err_unmap_srq:
524 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
525 mthca_free_icm_table(mdev, mdev->srq_table.table);
526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527err_unmap_cq:
528 mthca_free_icm_table(mdev, mdev->cq_table.table);
529
Roland Dreier08aeb142005-04-16 15:26:34 -0700530err_unmap_rdb:
531 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
532
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533err_unmap_eqp:
534 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
535
536err_unmap_qp:
537 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
538
539err_unmap_mpt:
540 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
541
542err_unmap_mtt:
543 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
544
545err_unmap_eq:
546 mthca_unmap_eq_icm(mdev);
547
548err_unmap_aux:
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000549 mthca_UNMAP_ICM_AUX(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550
551err_free_aux:
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200552 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553
554 return err;
555}
556
Michael S. Tsirkinaba7a222005-09-30 13:55:50 -0700557static void mthca_free_icms(struct mthca_dev *mdev)
558{
Michael S. Tsirkinaba7a222005-09-30 13:55:50 -0700559
560 mthca_free_icm_table(mdev, mdev->mcg_table.table);
561 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
562 mthca_free_icm_table(mdev, mdev->srq_table.table);
563 mthca_free_icm_table(mdev, mdev->cq_table.table);
564 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
565 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
566 mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
567 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
568 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
569 mthca_unmap_eq_icm(mdev);
570
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000571 mthca_UNMAP_ICM_AUX(mdev);
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200572 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
Michael S. Tsirkinaba7a222005-09-30 13:55:50 -0700573}
574
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800575static int mthca_init_arbel(struct mthca_dev *mdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576{
577 struct mthca_dev_lim dev_lim;
578 struct mthca_profile profile;
579 struct mthca_init_hca_param init_hca;
Roland Dreier19773532008-04-16 21:01:13 -0700580 s64 icm_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 int err;
582
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000583 err = mthca_QUERY_FW(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000585 mthca_err(mdev, "QUERY_FW command failed %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 return err;
587 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000589 err = mthca_ENABLE_LAM(mdev);
590 if (err == -EAGAIN) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
592 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000593 } else if (err) {
594 mthca_err(mdev, "ENABLE_LAM returned %d, aborting.\n", err);
595 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 }
597
598 err = mthca_load_fw(mdev);
599 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000600 mthca_err(mdev, "Loading FW returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 goto err_disable;
602 }
603
604 err = mthca_dev_lim(mdev, &dev_lim);
605 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000606 mthca_err(mdev, "QUERY_DEV_LIM returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607 goto err_stop_fw;
608 }
609
Leonid Arsh82da7032006-12-10 13:40:17 +0200610 profile = hca_profile;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611 profile.num_uar = dev_lim.uar_size / PAGE_SIZE;
612 profile.num_udav = 0;
Roland Dreierec34a922005-08-19 10:59:31 -0700613 if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
614 profile.num_srq = dev_lim.max_srqs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
616 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
Roland Dreier19773532008-04-16 21:01:13 -0700617 if (icm_size < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 err = icm_size;
619 goto err_stop_fw;
620 }
621
622 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
623 if (err)
624 goto err_stop_fw;
625
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000626 err = mthca_INIT_HCA(mdev, &init_hca);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000628 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 goto err_free_icm;
630 }
631
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 return 0;
633
634err_free_icm:
Michael S. Tsirkinaba7a222005-09-30 13:55:50 -0700635 mthca_free_icms(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636
637err_stop_fw:
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000638 mthca_UNMAP_FA(mdev);
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200639 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640
641err_disable:
642 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000643 mthca_DISABLE_LAM(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
645 return err;
646}
647
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700648static void mthca_close_hca(struct mthca_dev *mdev)
649{
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000650 mthca_CLOSE_HCA(mdev, 0);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700651
652 if (mthca_is_memfree(mdev)) {
Michael S. Tsirkinaba7a222005-09-30 13:55:50 -0700653 mthca_free_icms(mdev);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700654
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000655 mthca_UNMAP_FA(mdev);
Michael S. Tsirkin391e4de2007-02-10 23:15:08 +0200656 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700657
658 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000659 mthca_DISABLE_LAM(mdev);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700660 } else
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000661 mthca_SYS_DIS(mdev);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700662}
663
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800664static int mthca_init_hca(struct mthca_dev *mdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665{
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700666 int err;
667 struct mthca_adapter adapter;
668
Roland Dreierd10ddbf2005-04-16 15:26:32 -0700669 if (mthca_is_memfree(mdev))
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700670 err = mthca_init_arbel(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 else
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700672 err = mthca_init_tavor(mdev);
673
674 if (err)
675 return err;
676
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000677 err = mthca_QUERY_ADAPTER(mdev, &adapter);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700678 if (err) {
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000679 mthca_err(mdev, "QUERY_ADAPTER command returned %d, aborting.\n", err);
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700680 goto err_close;
681 }
682
683 mdev->eq_table.inta_pin = adapter.inta_pin;
Jack Morgenstein6ccef1d2008-01-27 18:13:20 +0200684 if (!mthca_is_memfree(mdev))
685 mdev->rev_id = adapter.revision_id;
Michael S. Tsirkin2e8b9812005-08-13 21:19:38 -0700686 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
687
688 return 0;
689
690err_close:
691 mthca_close_hca(mdev);
692 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693}
694
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800695static int mthca_setup_hca(struct mthca_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696{
697 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698
699 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
700
701 err = mthca_init_uar_table(dev);
702 if (err) {
703 mthca_err(dev, "Failed to initialize "
704 "user access region table, aborting.\n");
705 return err;
706 }
707
708 err = mthca_uar_alloc(dev, &dev->driver_uar);
709 if (err) {
710 mthca_err(dev, "Failed to allocate driver access region, "
711 "aborting.\n");
712 goto err_uar_table_free;
713 }
714
John L. Burreb4a7cb2011-01-11 20:39:46 -0800715 dev->kar = ioremap((phys_addr_t) dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 if (!dev->kar) {
717 mthca_err(dev, "Couldn't map kernel access region, "
718 "aborting.\n");
719 err = -ENOMEM;
720 goto err_uar_free;
721 }
722
723 err = mthca_init_pd_table(dev);
724 if (err) {
725 mthca_err(dev, "Failed to initialize "
726 "protection domain table, aborting.\n");
727 goto err_kar_unmap;
728 }
729
730 err = mthca_init_mr_table(dev);
731 if (err) {
732 mthca_err(dev, "Failed to initialize "
733 "memory region table, aborting.\n");
734 goto err_pd_table_free;
735 }
736
Roland Dreier99264c12005-07-07 17:57:18 -0700737 err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 if (err) {
739 mthca_err(dev, "Failed to create driver PD, "
740 "aborting.\n");
741 goto err_mr_table_free;
742 }
743
744 err = mthca_init_eq_table(dev);
745 if (err) {
746 mthca_err(dev, "Failed to initialize "
747 "event queue table, aborting.\n");
748 goto err_pd_free;
749 }
750
751 err = mthca_cmd_use_events(dev);
752 if (err) {
753 mthca_err(dev, "Failed to switch to event-driven "
754 "firmware commands, aborting.\n");
755 goto err_eq_table_free;
756 }
757
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +0000758 err = mthca_NOP(dev);
759 if (err) {
Adrian Bunke57895d2008-01-01 15:47:10 +0200760 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +0300761 mthca_warn(dev, "NOP command failed to generate interrupt "
762 "(IRQ %d).\n",
Adrian Bunke57895d2008-01-01 15:47:10 +0200763 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
764 mthca_warn(dev, "Trying again with MSI-X disabled.\n");
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +0300765 } else {
766 mthca_err(dev, "NOP command failed to generate interrupt "
767 "(IRQ %d), aborting.\n",
768 dev->pdev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +0300770 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771
772 goto err_cmd_poll;
773 }
774
775 mthca_dbg(dev, "NOP command IRQ test passed\n");
776
777 err = mthca_init_cq_table(dev);
778 if (err) {
779 mthca_err(dev, "Failed to initialize "
780 "completion queue table, aborting.\n");
781 goto err_cmd_poll;
782 }
783
Roland Dreierec34a922005-08-19 10:59:31 -0700784 err = mthca_init_srq_table(dev);
785 if (err) {
786 mthca_err(dev, "Failed to initialize "
787 "shared receive queue table, aborting.\n");
788 goto err_cq_table_free;
789 }
790
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791 err = mthca_init_qp_table(dev);
792 if (err) {
793 mthca_err(dev, "Failed to initialize "
794 "queue pair table, aborting.\n");
Roland Dreierec34a922005-08-19 10:59:31 -0700795 goto err_srq_table_free;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 }
797
798 err = mthca_init_av_table(dev);
799 if (err) {
800 mthca_err(dev, "Failed to initialize "
801 "address vector table, aborting.\n");
802 goto err_qp_table_free;
803 }
804
805 err = mthca_init_mcg_table(dev);
806 if (err) {
807 mthca_err(dev, "Failed to initialize "
808 "multicast group table, aborting.\n");
809 goto err_av_table_free;
810 }
811
812 return 0;
813
814err_av_table_free:
815 mthca_cleanup_av_table(dev);
816
817err_qp_table_free:
818 mthca_cleanup_qp_table(dev);
819
Roland Dreierec34a922005-08-19 10:59:31 -0700820err_srq_table_free:
821 mthca_cleanup_srq_table(dev);
822
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823err_cq_table_free:
824 mthca_cleanup_cq_table(dev);
825
826err_cmd_poll:
827 mthca_cmd_use_polling(dev);
828
829err_eq_table_free:
830 mthca_cleanup_eq_table(dev);
831
832err_pd_free:
833 mthca_pd_free(dev, &dev->driver_pd);
834
835err_mr_table_free:
836 mthca_cleanup_mr_table(dev);
837
838err_pd_table_free:
839 mthca_cleanup_pd_table(dev);
840
841err_kar_unmap:
842 iounmap(dev->kar);
843
844err_uar_free:
845 mthca_uar_free(dev, &dev->driver_uar);
846
847err_uar_table_free:
848 mthca_cleanup_uar_table(dev);
849 return err;
850}
851
Roland Dreierf4f3d0f2006-11-29 15:33:06 -0800852static int mthca_enable_msi_x(struct mthca_dev *mdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853{
854 struct msix_entry entries[3];
855 int err;
856
857 entries[0].entry = 0;
858 entries[1].entry = 1;
859 entries[2].entry = 2;
860
Alexander Gordeev9684c2e2014-02-23 07:57:05 +0100861 err = pci_enable_msix_exact(mdev->pdev, entries, ARRAY_SIZE(entries));
862 if (err)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864
865 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
866 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
867 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector;
868
869 return 0;
870}
871
Roland Dreier68a3c212005-04-16 15:26:34 -0700872/* Types of supported HCA */
873enum {
874 TAVOR, /* MT23108 */
875 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */
876 ARBEL_NATIVE, /* MT25208 with extended features */
877 SINAI /* MT25204 */
878};
879
880#define MTHCA_FW_VER(major, minor, subminor) \
881 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
882
883static struct {
884 u64 latest_fw;
Eli Cohen651eaac2006-03-02 12:40:46 -0800885 u32 flags;
Roland Dreier68a3c212005-04-16 15:26:34 -0700886} mthca_hca_table[] = {
Roland Dreier3f114852007-04-18 20:21:02 -0700887 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
Eli Cohen651eaac2006-03-02 12:40:46 -0800888 .flags = 0 },
Roland Dreier3f114852007-04-18 20:21:02 -0700889 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
Eli Cohen651eaac2006-03-02 12:40:46 -0800890 .flags = MTHCA_FLAG_PCIE },
Roland Dreier950529e2008-01-25 14:17:44 -0800891 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
Eli Cohen651eaac2006-03-02 12:40:46 -0800892 .flags = MTHCA_FLAG_MEMFREE |
893 MTHCA_FLAG_PCIE },
Roland Dreier3f114852007-04-18 20:21:02 -0700894 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
Eli Cohen651eaac2006-03-02 12:40:46 -0800895 .flags = MTHCA_FLAG_MEMFREE |
896 MTHCA_FLAG_PCIE |
897 MTHCA_FLAG_SINAI_OPT }
Roland Dreier68a3c212005-04-16 15:26:34 -0700898};
899
Jack Morgensteinb3b30f52006-08-15 21:11:18 +0300900static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902 int ddr_hidden = 0;
903 int err;
904 struct mthca_dev *mdev;
905
Adrian Bunk982245f2005-07-17 04:22:20 +0200906 printk(KERN_INFO PFX "Initializing %s\n",
907 pci_name(pdev));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908
909 err = pci_enable_device(pdev);
910 if (err) {
911 dev_err(&pdev->dev, "Cannot enable PCI device, "
912 "aborting.\n");
913 return err;
914 }
915
916 /*
917 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not
918 * be present)
919 */
920 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
921 pci_resource_len(pdev, 0) != 1 << 20) {
Bernhard Fischer177214a2005-06-27 14:36:39 -0700922 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923 err = -ENODEV;
924 goto err_disable_pdev;
925 }
Michael S. Tsirkincbd29812006-01-30 15:20:35 -0800926 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
Bernhard Fischer177214a2005-06-27 14:36:39 -0700927 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928 err = -ENODEV;
929 goto err_disable_pdev;
930 }
931 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
932 ddr_hidden = 1;
933
Roland Dreier208dde22008-09-29 21:37:33 -0700934 err = pci_request_regions(pdev, DRV_NAME);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935 if (err) {
936 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
937 "aborting.\n");
938 goto err_disable_pdev;
939 }
940
941 pci_set_master(pdev);
942
Yang Hongyang6a355282009-04-06 19:01:13 -0700943 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 if (err) {
945 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
Yang Hongyang284901a2009-04-06 19:01:15 -0700946 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 if (err) {
948 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
949 goto err_free_res;
950 }
951 }
Yang Hongyang6a355282009-04-06 19:01:13 -0700952 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953 if (err) {
954 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
955 "consistent PCI DMA mask.\n");
Yang Hongyang284901a2009-04-06 19:01:15 -0700956 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 if (err) {
958 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
959 "aborting.\n");
960 goto err_free_res;
961 }
962 }
963
David Dillow7f9e5c482011-01-17 02:09:44 +0000964 /* We can handle large RDMA requests, so allow larger segments. */
965 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
966
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
968 if (!mdev) {
969 dev_err(&pdev->dev, "Device struct alloc failed, "
970 "aborting.\n");
971 err = -ENOMEM;
972 goto err_free_res;
973 }
974
Roland Dreier68a3c212005-04-16 15:26:34 -0700975 mdev->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
Jack Morgensteinb3b30f52006-08-15 21:11:18 +0300977 mdev->mthca_flags = mthca_hca_table[hca_type].flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978 if (ddr_hidden)
979 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
980
981 /*
982 * Now reset the HCA before we touch the PCI capabilities or
983 * attempt a firmware command, since a boot ROM may have left
984 * the HCA in an undefined state.
985 */
986 err = mthca_reset(mdev);
987 if (err) {
988 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
989 goto err_free_dev;
990 }
991
Roland Dreier80fd8232005-06-27 14:36:45 -0700992 if (mthca_cmd_init(mdev)) {
993 mthca_err(mdev, "Failed to init command interface, aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 goto err_free_dev;
995 }
996
997 err = mthca_tune_pci(mdev);
998 if (err)
Roland Dreier80fd8232005-06-27 14:36:45 -0700999 goto err_cmd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
1001 err = mthca_init_hca(mdev);
1002 if (err)
Roland Dreier80fd8232005-06-27 14:36:45 -07001003 goto err_cmd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001005 if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
Roland Dreiere4daf732007-07-17 18:37:42 -07001006 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
Roland Dreier68a3c212005-04-16 15:26:34 -07001007 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1008 (int) (mdev->fw_ver & 0xffff),
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001009 (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1010 (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1011 (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
Roland Dreier68a3c212005-04-16 15:26:34 -07001012 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1013 }
1014
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +03001015 if (msi_x && !mthca_enable_msi_x(mdev))
1016 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +03001017
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018 err = mthca_setup_hca(mdev);
Adrian Bunke57895d2008-01-01 15:47:10 +02001019 if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +03001020 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1021 pci_disable_msix(pdev);
Adrian Bunke57895d2008-01-01 15:47:10 +02001022 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +03001023
1024 err = mthca_setup_hca(mdev);
1025 }
1026
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 if (err)
1028 goto err_close;
1029
1030 err = mthca_register_device(mdev);
1031 if (err)
1032 goto err_cleanup;
1033
1034 err = mthca_create_agents(mdev);
1035 if (err)
1036 goto err_unregister;
1037
1038 pci_set_drvdata(pdev, mdev);
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001039 mdev->hca_type = hca_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040
Jack Morgensteind8410642009-09-05 20:36:16 -07001041 mdev->active = true;
1042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 return 0;
1044
1045err_unregister:
1046 mthca_unregister_device(mdev);
1047
1048err_cleanup:
1049 mthca_cleanup_mcg_table(mdev);
1050 mthca_cleanup_av_table(mdev);
1051 mthca_cleanup_qp_table(mdev);
Roland Dreierec34a922005-08-19 10:59:31 -07001052 mthca_cleanup_srq_table(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 mthca_cleanup_cq_table(mdev);
1054 mthca_cmd_use_polling(mdev);
1055 mthca_cleanup_eq_table(mdev);
1056
1057 mthca_pd_free(mdev, &mdev->driver_pd);
1058
1059 mthca_cleanup_mr_table(mdev);
1060 mthca_cleanup_pd_table(mdev);
1061 mthca_cleanup_uar_table(mdev);
1062
1063err_close:
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +03001064 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1065 pci_disable_msix(pdev);
Michael S. Tsirkin017aadc2007-08-07 16:10:34 +03001066
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 mthca_close_hca(mdev);
1068
Roland Dreier80fd8232005-06-27 14:36:45 -07001069err_cmd:
1070 mthca_cmd_cleanup(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
1072err_free_dev:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 ib_dealloc_device(&mdev->ib_dev);
1074
1075err_free_res:
Roland Dreier208dde22008-09-29 21:37:33 -07001076 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
1078err_disable_pdev:
1079 pci_disable_device(pdev);
1080 pci_set_drvdata(pdev, NULL);
1081 return err;
1082}
1083
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001084static void __mthca_remove_one(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085{
1086 struct mthca_dev *mdev = pci_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 int p;
1088
1089 if (mdev) {
1090 mthca_free_agents(mdev);
1091 mthca_unregister_device(mdev);
1092
1093 for (p = 1; p <= mdev->limits.num_ports; ++p)
Goldwyn Rodriguescdb73db2011-07-07 17:20:40 +00001094 mthca_CLOSE_IB(mdev, p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
1096 mthca_cleanup_mcg_table(mdev);
1097 mthca_cleanup_av_table(mdev);
1098 mthca_cleanup_qp_table(mdev);
Roland Dreierec34a922005-08-19 10:59:31 -07001099 mthca_cleanup_srq_table(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 mthca_cleanup_cq_table(mdev);
1101 mthca_cmd_use_polling(mdev);
1102 mthca_cleanup_eq_table(mdev);
1103
1104 mthca_pd_free(mdev, &mdev->driver_pd);
1105
1106 mthca_cleanup_mr_table(mdev);
1107 mthca_cleanup_pd_table(mdev);
1108
1109 iounmap(mdev->kar);
1110 mthca_uar_free(mdev, &mdev->driver_uar);
1111 mthca_cleanup_uar_table(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112 mthca_close_hca(mdev);
Roland Dreier80fd8232005-06-27 14:36:45 -07001113 mthca_cmd_cleanup(mdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114
1115 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1116 pci_disable_msix(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117
1118 ib_dealloc_device(&mdev->ib_dev);
Roland Dreier208dde22008-09-29 21:37:33 -07001119 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120 pci_disable_device(pdev);
1121 pci_set_drvdata(pdev, NULL);
1122 }
1123}
1124
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001125int __mthca_restart_one(struct pci_dev *pdev)
1126{
1127 struct mthca_dev *mdev;
Ali Ayoubde57c9f2007-05-17 20:58:30 +03001128 int hca_type;
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001129
1130 mdev = pci_get_drvdata(pdev);
1131 if (!mdev)
1132 return -ENODEV;
Ali Ayoubde57c9f2007-05-17 20:58:30 +03001133 hca_type = mdev->hca_type;
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001134 __mthca_remove_one(pdev);
Ali Ayoubde57c9f2007-05-17 20:58:30 +03001135 return __mthca_init_one(pdev, hca_type);
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001136}
1137
Greg Kroah-Hartman1e6d9ab2012-12-21 15:08:40 -08001138static int mthca_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001139{
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001140 int ret;
1141
1142 mutex_lock(&mthca_device_mutex);
1143
Marcin Slusarzf1aa78b2009-09-05 20:24:24 -07001144 printk_once(KERN_INFO "%s", mthca_version);
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001145
1146 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1147 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1148 pci_name(pdev), id->driver_data);
1149 mutex_unlock(&mthca_device_mutex);
1150 return -ENODEV;
1151 }
1152
1153 ret = __mthca_init_one(pdev, id->driver_data);
1154
1155 mutex_unlock(&mthca_device_mutex);
1156
1157 return ret;
1158}
1159
Greg Kroah-Hartman1e6d9ab2012-12-21 15:08:40 -08001160static void mthca_remove_one(struct pci_dev *pdev)
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001161{
1162 mutex_lock(&mthca_device_mutex);
1163 __mthca_remove_one(pdev);
1164 mutex_unlock(&mthca_device_mutex);
1165}
1166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167static struct pci_device_id mthca_pci_table[] = {
1168 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1169 .driver_data = TAVOR },
1170 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1171 .driver_data = TAVOR },
1172 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1173 .driver_data = ARBEL_COMPAT },
1174 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1175 .driver_data = ARBEL_COMPAT },
1176 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1177 .driver_data = ARBEL_NATIVE },
1178 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1179 .driver_data = ARBEL_NATIVE },
Roland Dreier68a3c212005-04-16 15:26:34 -07001180 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1181 .driver_data = SINAI },
1182 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1183 .driver_data = SINAI },
1184 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1185 .driver_data = SINAI },
1186 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1187 .driver_data = SINAI },
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188 { 0, }
1189};
1190
1191MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1192
1193static struct pci_driver mthca_driver = {
Bernhard Fischer177214a2005-06-27 14:36:39 -07001194 .name = DRV_NAME,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 .id_table = mthca_pci_table,
1196 .probe = mthca_init_one,
Greg Kroah-Hartman1e6d9ab2012-12-21 15:08:40 -08001197 .remove = mthca_remove_one,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198};
1199
Leonid Arsh82da7032006-12-10 13:40:17 +02001200static void __init __mthca_check_profile_val(const char *name, int *pval,
1201 int pval_default)
1202{
1203 /* value must be positive and power of 2 */
1204 int old_pval = *pval;
1205
1206 if (old_pval <= 0)
1207 *pval = pval_default;
1208 else
1209 *pval = roundup_pow_of_two(old_pval);
1210
1211 if (old_pval != *pval) {
1212 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1213 old_pval, name);
1214 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1215 }
1216}
1217
1218#define mthca_check_profile_val(name, default) \
1219 __mthca_check_profile_val(#name, &hca_profile.name, default)
1220
1221static void __init mthca_validate_profile(void)
1222{
1223 mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP);
1224 mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP);
1225 mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ);
1226 mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG);
1227 mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT);
1228 mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT);
1229 mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV);
1230 mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1231
1232 if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1233 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1234 hca_profile.fmr_reserved_mtts);
1235 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1236 hca_profile.num_mtt);
1237 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1238 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1239 hca_profile.fmr_reserved_mtts);
1240 }
Eli Cohenc1f67a82009-05-27 14:36:16 -07001241
1242 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
1243 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
1244 log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
1245 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
1246 }
Leonid Arsh82da7032006-12-10 13:40:17 +02001247}
1248
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249static int __init mthca_init(void)
1250{
1251 int ret;
1252
Leonid Arsh82da7032006-12-10 13:40:17 +02001253 mthca_validate_profile();
1254
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001255 ret = mthca_catas_init();
1256 if (ret)
1257 return ret;
1258
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 ret = pci_register_driver(&mthca_driver);
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001260 if (ret < 0) {
1261 mthca_catas_cleanup();
1262 return ret;
1263 }
1264
1265 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266}
1267
1268static void __exit mthca_cleanup(void)
1269{
1270 pci_unregister_driver(&mthca_driver);
Jack Morgensteinb3b30f52006-08-15 21:11:18 +03001271 mthca_catas_cleanup();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272}
1273
1274module_init(mthca_init);
1275module_exit(mthca_cleanup);