blob: f4791fa2472f9a043d142acac5ca582f6741d7fc [file] [log] [blame]
Roland Dreier225c7b12007-05-08 18:00:38 -07001/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
Jack Morgenstein51a379d2008-07-25 10:32:52 -07004 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
Roland Dreier225c7b12007-05-08 18:00:38 -07005 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 */
35
36#include <linux/module.h>
37#include <linux/init.h>
38#include <linux/errno.h>
39#include <linux/pci.h>
40#include <linux/dma-mapping.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090041#include <linux/slab.h>
Roland Dreier225c7b12007-05-08 18:00:38 -070042
43#include <linux/mlx4/device.h>
44#include <linux/mlx4/doorbell.h>
45
46#include "mlx4.h"
47#include "fw.h"
48#include "icm.h"
49
50MODULE_AUTHOR("Roland Dreier");
51MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
52MODULE_LICENSE("Dual BSD/GPL");
53MODULE_VERSION(DRV_VERSION);
54
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -070055struct workqueue_struct *mlx4_wq;
56
Roland Dreier225c7b12007-05-08 18:00:38 -070057#ifdef CONFIG_MLX4_DEBUG
58
59int mlx4_debug_level = 0;
60module_param_named(debug_level, mlx4_debug_level, int, 0644);
61MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
62
63#endif /* CONFIG_MLX4_DEBUG */
64
65#ifdef CONFIG_PCI_MSI
66
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +030067static int msi_x = 1;
Roland Dreier225c7b12007-05-08 18:00:38 -070068module_param(msi_x, int, 0444);
69MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
70
71#else /* CONFIG_PCI_MSI */
72
73#define msi_x (0)
74
75#endif /* CONFIG_PCI_MSI */
76
Roland Dreierf33afc22008-02-04 20:20:44 -080077static char mlx4_version[] __devinitdata =
Roland Dreier225c7b12007-05-08 18:00:38 -070078 DRV_NAME ": Mellanox ConnectX core driver v"
79 DRV_VERSION " (" DRV_RELDATE ")\n";
80
81static struct mlx4_profile default_profile = {
Jack Morgenstein9b1f3852008-04-16 21:09:32 -070082 .num_qp = 1 << 17,
Roland Dreier225c7b12007-05-08 18:00:38 -070083 .num_srq = 1 << 16,
Jack Morgensteinc9f2ba52007-07-17 13:11:43 +030084 .rdmarc_per_qp = 1 << 4,
Roland Dreier225c7b12007-05-08 18:00:38 -070085 .num_cq = 1 << 16,
86 .num_mcg = 1 << 13,
87 .num_mpt = 1 << 17,
88 .num_mtt = 1 << 20,
89};
90
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -070091static int log_num_mac = 2;
92module_param_named(log_num_mac, log_num_mac, int, 0444);
93MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
94
95static int log_num_vlan;
96module_param_named(log_num_vlan, log_num_vlan, int, 0444);
97MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
98
99static int use_prio;
100module_param_named(use_prio, use_prio, bool, 0444);
101MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
102 "(0/1, default 0)");
103
Eli Cohenab6bf422009-05-27 14:38:34 -0700104static int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
105module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
106MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)");
107
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700108int mlx4_check_port_params(struct mlx4_dev *dev,
109 enum mlx4_port_type *port_type)
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700110{
111 int i;
112
113 for (i = 0; i < dev->caps.num_ports - 1; i++) {
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700114 if (port_type[i] != port_type[i + 1]) {
115 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
116 mlx4_err(dev, "Only same port types supported "
117 "on this HCA, aborting.\n");
118 return -EINVAL;
119 }
120 if (port_type[i] == MLX4_PORT_TYPE_ETH &&
121 port_type[i + 1] == MLX4_PORT_TYPE_IB)
122 return -EINVAL;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700123 }
124 }
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700125
126 for (i = 0; i < dev->caps.num_ports; i++) {
127 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
128 mlx4_err(dev, "Requested port type for port %d is not "
129 "supported on this HCA\n", i + 1);
130 return -EINVAL;
131 }
132 }
133 return 0;
134}
135
136static void mlx4_set_port_mask(struct mlx4_dev *dev)
137{
138 int i;
139
140 dev->caps.port_mask = 0;
141 for (i = 1; i <= dev->caps.num_ports; ++i)
142 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB)
143 dev->caps.port_mask |= 1 << (i - 1);
144}
Roland Dreier3d73c282007-10-10 15:43:54 -0700145static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
Roland Dreier225c7b12007-05-08 18:00:38 -0700146{
147 int err;
Roland Dreier5ae2a7a2007-06-18 08:15:02 -0700148 int i;
Roland Dreier225c7b12007-05-08 18:00:38 -0700149
150 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
151 if (err) {
152 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
153 return err;
154 }
155
156 if (dev_cap->min_page_sz > PAGE_SIZE) {
157 mlx4_err(dev, "HCA minimum page size of %d bigger than "
158 "kernel PAGE_SIZE of %ld, aborting.\n",
159 dev_cap->min_page_sz, PAGE_SIZE);
160 return -ENODEV;
161 }
162 if (dev_cap->num_ports > MLX4_MAX_PORTS) {
163 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
164 "aborting.\n",
165 dev_cap->num_ports, MLX4_MAX_PORTS);
166 return -ENODEV;
167 }
168
169 if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
170 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
171 "PCI resource 2 size of 0x%llx, aborting.\n",
172 dev_cap->uar_size,
173 (unsigned long long) pci_resource_len(dev->pdev, 2));
174 return -ENODEV;
175 }
176
177 dev->caps.num_ports = dev_cap->num_ports;
Roland Dreier5ae2a7a2007-06-18 08:15:02 -0700178 for (i = 1; i <= dev->caps.num_ports; ++i) {
179 dev->caps.vl_cap[i] = dev_cap->max_vl[i];
Yevgeny Petrilinb79acb42008-10-22 10:56:48 -0700180 dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
Roland Dreier5ae2a7a2007-06-18 08:15:02 -0700181 dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
182 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
183 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
Yevgeny Petrilinb79acb42008-10-22 10:56:48 -0700184 dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
185 dev->caps.def_mac[i] = dev_cap->def_mac[i];
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700186 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
Yevgeny Petrilin76995172010-08-24 03:46:23 +0000187 dev->caps.trans_type[i] = dev_cap->trans_type[i];
188 dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
189 dev->caps.wavelength[i] = dev_cap->wavelength[i];
190 dev->caps.trans_code[i] = dev_cap->trans_code[i];
Roland Dreier5ae2a7a2007-06-18 08:15:02 -0700191 }
192
Roland Dreier225c7b12007-05-08 18:00:38 -0700193 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
Roland Dreier225c7b12007-05-08 18:00:38 -0700194 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
195 dev->caps.bf_reg_size = dev_cap->bf_reg_size;
196 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
197 dev->caps.max_sq_sg = dev_cap->max_sq_sg;
198 dev->caps.max_rq_sg = dev_cap->max_rq_sg;
199 dev->caps.max_wqes = dev_cap->max_qp_sz;
200 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
Roland Dreier225c7b12007-05-08 18:00:38 -0700201 dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
202 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
203 dev->caps.reserved_srqs = dev_cap->reserved_srqs;
204 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
205 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
206 dev->caps.num_qp_per_mgm = MLX4_QP_PER_MGM;
207 /*
208 * Subtract 1 from the limit because we need to allocate a
209 * spare CQE so the HCA HW can tell the difference between an
210 * empty CQ and a full CQ.
211 */
212 dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
213 dev->caps.reserved_cqs = dev_cap->reserved_cqs;
214 dev->caps.reserved_eqs = dev_cap->reserved_eqs;
Eli Cohenab6bf422009-05-27 14:38:34 -0700215 dev->caps.mtts_per_seg = 1 << log_mtts_per_seg;
Roland Dreier121964e2007-10-09 19:59:16 -0700216 dev->caps.reserved_mtts = DIV_ROUND_UP(dev_cap->reserved_mtts,
Eli Cohenab6bf422009-05-27 14:38:34 -0700217 dev->caps.mtts_per_seg);
Roland Dreier225c7b12007-05-08 18:00:38 -0700218 dev->caps.reserved_mrws = dev_cap->reserved_mrws;
219 dev->caps.reserved_uars = dev_cap->reserved_uars;
220 dev->caps.reserved_pds = dev_cap->reserved_pds;
Eli Cohenab6bf422009-05-27 14:38:34 -0700221 dev->caps.mtt_entry_sz = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
Dotan Barak149983af2007-06-26 15:55:28 +0300222 dev->caps.max_msg_sz = dev_cap->max_msg_sz;
Roland Dreier225c7b12007-05-08 18:00:38 -0700223 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
224 dev->caps.flags = dev_cap->flags;
Roland Dreier95d04f02008-07-23 08:12:26 -0700225 dev->caps.bmme_flags = dev_cap->bmme_flags;
226 dev->caps.reserved_lkey = dev_cap->reserved_lkey;
Roland Dreier225c7b12007-05-08 18:00:38 -0700227 dev->caps.stat_rate_support = dev_cap->stat_rate_support;
Yevgeny Petriline7c1c2c42010-08-24 03:46:18 +0000228 dev->caps.loopback_support = dev_cap->loopback_support;
Eli Cohenb832be12008-04-16 21:09:27 -0700229 dev->caps.max_gso_sz = dev_cap->max_gso_sz;
Roland Dreier225c7b12007-05-08 18:00:38 -0700230
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700231 dev->caps.log_num_macs = log_num_mac;
232 dev->caps.log_num_vlans = log_num_vlan;
233 dev->caps.log_num_prios = use_prio ? 3 : 0;
234
235 for (i = 1; i <= dev->caps.num_ports; ++i) {
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700236 if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH)
237 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
238 else
239 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700240 dev->caps.possible_type[i] = dev->caps.port_type[i];
241 mlx4_priv(dev)->sense.sense_allowed[i] =
242 dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700243
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700244 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
245 dev->caps.log_num_macs = dev_cap->log_max_macs[i];
246 mlx4_warn(dev, "Requested number of MACs is too much "
247 "for port %d, reducing to %d.\n",
248 i, 1 << dev->caps.log_num_macs);
249 }
250 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
251 dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
252 mlx4_warn(dev, "Requested number of VLANs is too much "
253 "for port %d, reducing to %d.\n",
254 i, 1 << dev->caps.log_num_vlans);
255 }
256 }
257
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700258 mlx4_set_port_mask(dev);
259
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700260 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
261 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
262 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
263 (1 << dev->caps.log_num_macs) *
264 (1 << dev->caps.log_num_vlans) *
265 (1 << dev->caps.log_num_prios) *
266 dev->caps.num_ports;
267 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
268
269 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
270 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
271 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
272 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
273
Roland Dreier225c7b12007-05-08 18:00:38 -0700274 return 0;
275}
276
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700277/*
278 * Change the port configuration of the device.
279 * Every user of this function must hold the port mutex.
280 */
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700281int mlx4_change_port_types(struct mlx4_dev *dev,
282 enum mlx4_port_type *port_types)
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700283{
284 int err = 0;
285 int change = 0;
286 int port;
287
288 for (port = 0; port < dev->caps.num_ports; port++) {
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700289 /* Change the port type only if the new type is different
290 * from the current, and not set to Auto */
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700291 if (port_types[port] != dev->caps.port_type[port + 1]) {
292 change = 1;
293 dev->caps.port_type[port + 1] = port_types[port];
294 }
295 }
296 if (change) {
297 mlx4_unregister_device(dev);
298 for (port = 1; port <= dev->caps.num_ports; port++) {
299 mlx4_CLOSE_PORT(dev, port);
300 err = mlx4_SET_PORT(dev, port);
301 if (err) {
302 mlx4_err(dev, "Failed to set port %d, "
303 "aborting\n", port);
304 goto out;
305 }
306 }
307 mlx4_set_port_mask(dev);
308 err = mlx4_register_device(dev);
309 }
310
311out:
312 return err;
313}
314
315static ssize_t show_port_type(struct device *dev,
316 struct device_attribute *attr,
317 char *buf)
318{
319 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
320 port_attr);
321 struct mlx4_dev *mdev = info->dev;
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700322 char type[8];
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700323
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700324 sprintf(type, "%s",
325 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
326 "ib" : "eth");
327 if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
328 sprintf(buf, "auto (%s)\n", type);
329 else
330 sprintf(buf, "%s\n", type);
331
332 return strlen(buf);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700333}
334
335static ssize_t set_port_type(struct device *dev,
336 struct device_attribute *attr,
337 const char *buf, size_t count)
338{
339 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
340 port_attr);
341 struct mlx4_dev *mdev = info->dev;
342 struct mlx4_priv *priv = mlx4_priv(mdev);
343 enum mlx4_port_type types[MLX4_MAX_PORTS];
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700344 enum mlx4_port_type new_types[MLX4_MAX_PORTS];
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700345 int i;
346 int err = 0;
347
348 if (!strcmp(buf, "ib\n"))
349 info->tmp_type = MLX4_PORT_TYPE_IB;
350 else if (!strcmp(buf, "eth\n"))
351 info->tmp_type = MLX4_PORT_TYPE_ETH;
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700352 else if (!strcmp(buf, "auto\n"))
353 info->tmp_type = MLX4_PORT_TYPE_AUTO;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700354 else {
355 mlx4_err(mdev, "%s is not supported port type\n", buf);
356 return -EINVAL;
357 }
358
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700359 mlx4_stop_sense(mdev);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700360 mutex_lock(&priv->port_mutex);
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700361 /* Possible type is always the one that was delivered */
362 mdev->caps.possible_type[info->port] = info->tmp_type;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700363
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700364 for (i = 0; i < mdev->caps.num_ports; i++) {
365 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
366 mdev->caps.possible_type[i+1];
367 if (types[i] == MLX4_PORT_TYPE_AUTO)
368 types[i] = mdev->caps.port_type[i+1];
369 }
370
371 if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
372 for (i = 1; i <= mdev->caps.num_ports; i++) {
373 if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
374 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
375 err = -EINVAL;
376 }
377 }
378 }
379 if (err) {
380 mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
381 "Set only 'eth' or 'ib' for both ports "
382 "(should be the same)\n");
383 goto out;
384 }
385
386 mlx4_do_sense_ports(mdev, new_types, types);
387
388 err = mlx4_check_port_params(mdev, new_types);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700389 if (err)
390 goto out;
391
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700392 /* We are about to apply the changes after the configuration
393 * was verified, no need to remember the temporary types
394 * any more */
395 for (i = 0; i < mdev->caps.num_ports; i++)
396 priv->port[i + 1].tmp_type = 0;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700397
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700398 err = mlx4_change_port_types(mdev, new_types);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700399
400out:
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -0700401 mlx4_start_sense(mdev);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700402 mutex_unlock(&priv->port_mutex);
403 return err ? err : count;
404}
405
Roland Dreiere8f9b2e2008-02-04 20:20:41 -0800406static int mlx4_load_fw(struct mlx4_dev *dev)
Roland Dreier225c7b12007-05-08 18:00:38 -0700407{
408 struct mlx4_priv *priv = mlx4_priv(dev);
409 int err;
410
411 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300412 GFP_HIGHUSER | __GFP_NOWARN, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700413 if (!priv->fw.fw_icm) {
414 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
415 return -ENOMEM;
416 }
417
418 err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
419 if (err) {
420 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
421 goto err_free;
422 }
423
424 err = mlx4_RUN_FW(dev);
425 if (err) {
426 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
427 goto err_unmap_fa;
428 }
429
430 return 0;
431
432err_unmap_fa:
433 mlx4_UNMAP_FA(dev);
434
435err_free:
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300436 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700437 return err;
438}
439
Roland Dreiere8f9b2e2008-02-04 20:20:41 -0800440static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
441 int cmpt_entry_sz)
Roland Dreier225c7b12007-05-08 18:00:38 -0700442{
443 struct mlx4_priv *priv = mlx4_priv(dev);
444 int err;
445
446 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
447 cmpt_base +
448 ((u64) (MLX4_CMPT_TYPE_QP *
449 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
450 cmpt_entry_sz, dev->caps.num_qps,
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700451 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
452 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700453 if (err)
454 goto err;
455
456 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
457 cmpt_base +
458 ((u64) (MLX4_CMPT_TYPE_SRQ *
459 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
460 cmpt_entry_sz, dev->caps.num_srqs,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300461 dev->caps.reserved_srqs, 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700462 if (err)
463 goto err_qp;
464
465 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
466 cmpt_base +
467 ((u64) (MLX4_CMPT_TYPE_CQ *
468 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
469 cmpt_entry_sz, dev->caps.num_cqs,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300470 dev->caps.reserved_cqs, 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700471 if (err)
472 goto err_srq;
473
474 err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
475 cmpt_base +
476 ((u64) (MLX4_CMPT_TYPE_EQ *
477 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
478 cmpt_entry_sz,
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800479 dev->caps.num_eqs, dev->caps.num_eqs, 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700480 if (err)
481 goto err_cq;
482
483 return 0;
484
485err_cq:
486 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
487
488err_srq:
489 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
490
491err_qp:
492 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
493
494err:
495 return err;
496}
497
Roland Dreier3d73c282007-10-10 15:43:54 -0700498static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
499 struct mlx4_init_hca_param *init_hca, u64 icm_size)
Roland Dreier225c7b12007-05-08 18:00:38 -0700500{
501 struct mlx4_priv *priv = mlx4_priv(dev);
502 u64 aux_pages;
503 int err;
504
505 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
506 if (err) {
507 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
508 return err;
509 }
510
511 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
512 (unsigned long long) icm_size >> 10,
513 (unsigned long long) aux_pages << 2);
514
515 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300516 GFP_HIGHUSER | __GFP_NOWARN, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700517 if (!priv->fw.aux_icm) {
518 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
519 return -ENOMEM;
520 }
521
522 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
523 if (err) {
524 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
525 goto err_free_aux;
526 }
527
528 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
529 if (err) {
530 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
531 goto err_unmap_aux;
532 }
533
Roland Dreierfa0681d2009-09-05 20:24:49 -0700534 err = mlx4_init_icm_table(dev, &priv->eq_table.table,
535 init_hca->eqc_base, dev_cap->eqc_entry_sz,
536 dev->caps.num_eqs, dev->caps.num_eqs,
537 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700538 if (err) {
539 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
540 goto err_unmap_cmpt;
541 }
542
Jack Morgensteind7bb58f2007-08-01 12:28:53 +0300543 /*
544 * Reserved MTT entries must be aligned up to a cacheline
545 * boundary, since the FW will write to them, while the driver
546 * writes to all other MTT entries. (The variable
547 * dev->caps.mtt_entry_sz below is really the MTT segment
548 * size, not the raw entry size)
549 */
550 dev->caps.reserved_mtts =
551 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
552 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
553
Roland Dreier225c7b12007-05-08 18:00:38 -0700554 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
555 init_hca->mtt_base,
556 dev->caps.mtt_entry_sz,
557 dev->caps.num_mtt_segs,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300558 dev->caps.reserved_mtts, 1, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700559 if (err) {
560 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
561 goto err_unmap_eq;
562 }
563
564 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
565 init_hca->dmpt_base,
566 dev_cap->dmpt_entry_sz,
567 dev->caps.num_mpts,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300568 dev->caps.reserved_mrws, 1, 1);
Roland Dreier225c7b12007-05-08 18:00:38 -0700569 if (err) {
570 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
571 goto err_unmap_mtt;
572 }
573
574 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
575 init_hca->qpc_base,
576 dev_cap->qpc_entry_sz,
577 dev->caps.num_qps,
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700578 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
579 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700580 if (err) {
581 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
582 goto err_unmap_dmpt;
583 }
584
585 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
586 init_hca->auxc_base,
587 dev_cap->aux_entry_sz,
588 dev->caps.num_qps,
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700589 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
590 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700591 if (err) {
592 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
593 goto err_unmap_qp;
594 }
595
596 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
597 init_hca->altc_base,
598 dev_cap->altc_entry_sz,
599 dev->caps.num_qps,
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700600 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
601 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700602 if (err) {
603 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
604 goto err_unmap_auxc;
605 }
606
607 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
608 init_hca->rdmarc_base,
609 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
610 dev->caps.num_qps,
Yevgeny Petrilin93fc9e12008-10-22 10:25:29 -0700611 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
612 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700613 if (err) {
614 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
615 goto err_unmap_altc;
616 }
617
618 err = mlx4_init_icm_table(dev, &priv->cq_table.table,
619 init_hca->cqc_base,
620 dev_cap->cqc_entry_sz,
621 dev->caps.num_cqs,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300622 dev->caps.reserved_cqs, 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700623 if (err) {
624 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
625 goto err_unmap_rdmarc;
626 }
627
628 err = mlx4_init_icm_table(dev, &priv->srq_table.table,
629 init_hca->srqc_base,
630 dev_cap->srq_entry_sz,
631 dev->caps.num_srqs,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300632 dev->caps.reserved_srqs, 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700633 if (err) {
634 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
635 goto err_unmap_cq;
636 }
637
638 /*
639 * It's not strictly required, but for simplicity just map the
640 * whole multicast group table now. The table isn't very big
641 * and it's a lot easier than trying to track ref counts.
642 */
643 err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
644 init_hca->mc_base, MLX4_MGM_ENTRY_SIZE,
645 dev->caps.num_mgms + dev->caps.num_amgms,
646 dev->caps.num_mgms + dev->caps.num_amgms,
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300647 0, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700648 if (err) {
649 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
650 goto err_unmap_srq;
651 }
652
653 return 0;
654
655err_unmap_srq:
656 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
657
658err_unmap_cq:
659 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
660
661err_unmap_rdmarc:
662 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
663
664err_unmap_altc:
665 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
666
667err_unmap_auxc:
668 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
669
670err_unmap_qp:
671 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
672
673err_unmap_dmpt:
674 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
675
676err_unmap_mtt:
677 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
678
679err_unmap_eq:
Roland Dreierfa0681d2009-09-05 20:24:49 -0700680 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
Roland Dreier225c7b12007-05-08 18:00:38 -0700681
682err_unmap_cmpt:
683 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
684 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
685 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
686 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
687
688err_unmap_aux:
689 mlx4_UNMAP_ICM_AUX(dev);
690
691err_free_aux:
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300692 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700693
694 return err;
695}
696
697static void mlx4_free_icms(struct mlx4_dev *dev)
698{
699 struct mlx4_priv *priv = mlx4_priv(dev);
700
701 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
702 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
703 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
704 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
705 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
706 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
707 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
708 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
709 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
Roland Dreierfa0681d2009-09-05 20:24:49 -0700710 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
Roland Dreier225c7b12007-05-08 18:00:38 -0700711 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
712 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
713 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
714 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
Roland Dreier225c7b12007-05-08 18:00:38 -0700715
716 mlx4_UNMAP_ICM_AUX(dev);
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300717 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700718}
719
720static void mlx4_close_hca(struct mlx4_dev *dev)
721{
722 mlx4_CLOSE_HCA(dev, 0);
723 mlx4_free_icms(dev);
724 mlx4_UNMAP_FA(dev);
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300725 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700726}
727
Roland Dreier3d73c282007-10-10 15:43:54 -0700728static int mlx4_init_hca(struct mlx4_dev *dev)
Roland Dreier225c7b12007-05-08 18:00:38 -0700729{
730 struct mlx4_priv *priv = mlx4_priv(dev);
731 struct mlx4_adapter adapter;
732 struct mlx4_dev_cap dev_cap;
Vladimir Sokolovsky2d928652008-07-14 23:48:53 -0700733 struct mlx4_mod_stat_cfg mlx4_cfg;
Roland Dreier225c7b12007-05-08 18:00:38 -0700734 struct mlx4_profile profile;
735 struct mlx4_init_hca_param init_hca;
736 u64 icm_size;
737 int err;
738
739 err = mlx4_QUERY_FW(dev);
740 if (err) {
Yevgeny Petrilincc4ac2e2009-07-06 16:10:03 -0700741 if (err == -EACCES)
742 mlx4_info(dev, "non-primary physical function, skipping.\n");
743 else
744 mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
Roland Dreier225c7b12007-05-08 18:00:38 -0700745 return err;
746 }
747
748 err = mlx4_load_fw(dev);
749 if (err) {
750 mlx4_err(dev, "Failed to start FW, aborting.\n");
751 return err;
752 }
753
Vladimir Sokolovsky2d928652008-07-14 23:48:53 -0700754 mlx4_cfg.log_pg_sz_m = 1;
755 mlx4_cfg.log_pg_sz = 0;
756 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
757 if (err)
758 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
759
Roland Dreier225c7b12007-05-08 18:00:38 -0700760 err = mlx4_dev_cap(dev, &dev_cap);
761 if (err) {
762 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
763 goto err_stop_fw;
764 }
765
766 profile = default_profile;
767
768 icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca);
769 if ((long long) icm_size < 0) {
770 err = icm_size;
771 goto err_stop_fw;
772 }
773
774 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
775
776 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
777 if (err)
778 goto err_stop_fw;
779
780 err = mlx4_INIT_HCA(dev, &init_hca);
781 if (err) {
782 mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
783 goto err_free_icm;
784 }
785
786 err = mlx4_QUERY_ADAPTER(dev, &adapter);
787 if (err) {
788 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
789 goto err_close;
790 }
791
792 priv->eq_table.inta_pin = adapter.inta_pin;
Jack Morgensteincd9281d2007-09-18 09:14:18 +0200793 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
Roland Dreier225c7b12007-05-08 18:00:38 -0700794
795 return 0;
796
797err_close:
Yevgeny Petrilin1af92e22009-09-05 20:24:49 -0700798 mlx4_CLOSE_HCA(dev, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700799
800err_free_icm:
801 mlx4_free_icms(dev);
802
803err_stop_fw:
804 mlx4_UNMAP_FA(dev);
Jack Morgenstein5b0bf5e2007-08-01 12:28:20 +0300805 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
Roland Dreier225c7b12007-05-08 18:00:38 -0700806
807 return err;
808}
809
Roland Dreier3d73c282007-10-10 15:43:54 -0700810static int mlx4_setup_hca(struct mlx4_dev *dev)
Roland Dreier225c7b12007-05-08 18:00:38 -0700811{
812 struct mlx4_priv *priv = mlx4_priv(dev);
813 int err;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700814 int port;
Jack Morgenstein9a5aa622008-11-28 21:29:46 -0800815 __be32 ib_port_default_caps;
Roland Dreier225c7b12007-05-08 18:00:38 -0700816
Roland Dreier225c7b12007-05-08 18:00:38 -0700817 err = mlx4_init_uar_table(dev);
818 if (err) {
819 mlx4_err(dev, "Failed to initialize "
820 "user access region table, aborting.\n");
821 return err;
822 }
823
824 err = mlx4_uar_alloc(dev, &priv->driver_uar);
825 if (err) {
826 mlx4_err(dev, "Failed to allocate driver access region, "
827 "aborting.\n");
828 goto err_uar_table_free;
829 }
830
831 priv->kar = ioremap(priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
832 if (!priv->kar) {
833 mlx4_err(dev, "Couldn't map kernel access region, "
834 "aborting.\n");
835 err = -ENOMEM;
836 goto err_uar_free;
837 }
838
839 err = mlx4_init_pd_table(dev);
840 if (err) {
841 mlx4_err(dev, "Failed to initialize "
842 "protection domain table, aborting.\n");
843 goto err_kar_unmap;
844 }
845
846 err = mlx4_init_mr_table(dev);
847 if (err) {
848 mlx4_err(dev, "Failed to initialize "
849 "memory region table, aborting.\n");
850 goto err_pd_table_free;
851 }
852
Roland Dreier225c7b12007-05-08 18:00:38 -0700853 err = mlx4_init_eq_table(dev);
854 if (err) {
855 mlx4_err(dev, "Failed to initialize "
856 "event queue table, aborting.\n");
Jack Morgensteinee49bd92007-07-12 17:50:45 +0300857 goto err_mr_table_free;
Roland Dreier225c7b12007-05-08 18:00:38 -0700858 }
859
860 err = mlx4_cmd_use_events(dev);
861 if (err) {
862 mlx4_err(dev, "Failed to switch to event-driven "
863 "firmware commands, aborting.\n");
864 goto err_eq_table_free;
865 }
866
867 err = mlx4_NOP(dev);
868 if (err) {
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +0300869 if (dev->flags & MLX4_FLAG_MSI_X) {
870 mlx4_warn(dev, "NOP command failed to generate MSI-X "
871 "interrupt IRQ %d).\n",
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800872 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +0300873 mlx4_warn(dev, "Trying again without MSI-X.\n");
874 } else {
875 mlx4_err(dev, "NOP command failed to generate interrupt "
876 "(IRQ %d), aborting.\n",
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800877 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
Roland Dreier225c7b12007-05-08 18:00:38 -0700878 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +0300879 }
Roland Dreier225c7b12007-05-08 18:00:38 -0700880
881 goto err_cmd_poll;
882 }
883
884 mlx4_dbg(dev, "NOP command IRQ test passed\n");
885
886 err = mlx4_init_cq_table(dev);
887 if (err) {
888 mlx4_err(dev, "Failed to initialize "
889 "completion queue table, aborting.\n");
890 goto err_cmd_poll;
891 }
892
893 err = mlx4_init_srq_table(dev);
894 if (err) {
895 mlx4_err(dev, "Failed to initialize "
896 "shared receive queue table, aborting.\n");
897 goto err_cq_table_free;
898 }
899
900 err = mlx4_init_qp_table(dev);
901 if (err) {
902 mlx4_err(dev, "Failed to initialize "
903 "queue pair table, aborting.\n");
904 goto err_srq_table_free;
905 }
906
907 err = mlx4_init_mcg_table(dev);
908 if (err) {
909 mlx4_err(dev, "Failed to initialize "
910 "multicast group table, aborting.\n");
911 goto err_qp_table_free;
912 }
913
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700914 for (port = 1; port <= dev->caps.num_ports; port++) {
Jack Morgenstein9a5aa622008-11-28 21:29:46 -0800915 ib_port_default_caps = 0;
916 err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
917 if (err)
918 mlx4_warn(dev, "failed to get port %d default "
919 "ib capabilities (%d). Continuing with "
920 "caps = 0\n", port, err);
921 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700922 err = mlx4_SET_PORT(dev, port);
923 if (err) {
924 mlx4_err(dev, "Failed to set port %d, aborting\n",
925 port);
926 goto err_mcg_table_free;
927 }
928 }
929
Roland Dreier225c7b12007-05-08 18:00:38 -0700930 return 0;
931
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -0700932err_mcg_table_free:
933 mlx4_cleanup_mcg_table(dev);
934
Roland Dreier225c7b12007-05-08 18:00:38 -0700935err_qp_table_free:
936 mlx4_cleanup_qp_table(dev);
937
938err_srq_table_free:
939 mlx4_cleanup_srq_table(dev);
940
941err_cq_table_free:
942 mlx4_cleanup_cq_table(dev);
943
944err_cmd_poll:
945 mlx4_cmd_use_polling(dev);
946
947err_eq_table_free:
948 mlx4_cleanup_eq_table(dev);
949
Jack Morgensteinee49bd92007-07-12 17:50:45 +0300950err_mr_table_free:
Roland Dreier225c7b12007-05-08 18:00:38 -0700951 mlx4_cleanup_mr_table(dev);
952
953err_pd_table_free:
954 mlx4_cleanup_pd_table(dev);
955
956err_kar_unmap:
957 iounmap(priv->kar);
958
959err_uar_free:
960 mlx4_uar_free(dev, &priv->driver_uar);
961
962err_uar_table_free:
963 mlx4_cleanup_uar_table(dev);
964 return err;
965}
966
Roland Dreiere8f9b2e2008-02-04 20:20:41 -0800967static void mlx4_enable_msi_x(struct mlx4_dev *dev)
Roland Dreier225c7b12007-05-08 18:00:38 -0700968{
969 struct mlx4_priv *priv = mlx4_priv(dev);
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800970 struct msix_entry *entries;
971 int nreq;
Roland Dreier225c7b12007-05-08 18:00:38 -0700972 int err;
973 int i;
974
975 if (msi_x) {
Roland Dreier70cb9252009-01-09 13:14:07 -0800976 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
977 num_possible_cpus() + 1);
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800978 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
979 if (!entries)
980 goto no_msi;
981
982 for (i = 0; i < nreq; ++i)
Roland Dreier225c7b12007-05-08 18:00:38 -0700983 entries[i].entry = i;
984
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800985 retry:
986 err = pci_enable_msix(dev->pdev, entries, nreq);
Roland Dreier225c7b12007-05-08 18:00:38 -0700987 if (err) {
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -0800988 /* Try again if at least 2 vectors are available */
989 if (err > 1) {
990 mlx4_info(dev, "Requested %d vectors, "
991 "but only %d MSI-X vectors available, "
992 "trying again\n", nreq, err);
993 nreq = err;
994 goto retry;
995 }
Nicolas Morey-Chaisemartin5bf0da72009-04-21 10:11:06 -0700996 kfree(entries);
Roland Dreier225c7b12007-05-08 18:00:38 -0700997 goto no_msi;
998 }
999
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001000 dev->caps.num_comp_vectors = nreq - 1;
1001 for (i = 0; i < nreq; ++i)
Roland Dreier225c7b12007-05-08 18:00:38 -07001002 priv->eq_table.eq[i].irq = entries[i].vector;
1003
1004 dev->flags |= MLX4_FLAG_MSI_X;
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001005
1006 kfree(entries);
Roland Dreier225c7b12007-05-08 18:00:38 -07001007 return;
1008 }
1009
1010no_msi:
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001011 dev->caps.num_comp_vectors = 1;
1012
1013 for (i = 0; i < 2; ++i)
Roland Dreier225c7b12007-05-08 18:00:38 -07001014 priv->eq_table.eq[i].irq = dev->pdev->irq;
1015}
1016
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001017static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
Yevgeny Petrilin2a2336f2008-10-22 11:44:46 -07001018{
1019 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001020 int err = 0;
Yevgeny Petrilin2a2336f2008-10-22 11:44:46 -07001021
1022 info->dev = dev;
1023 info->port = port;
1024 mlx4_init_mac_table(dev, &info->mac_table);
1025 mlx4_init_vlan_table(dev, &info->vlan_table);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001026
1027 sprintf(info->dev_name, "mlx4_port%d", port);
1028 info->port_attr.attr.name = info->dev_name;
1029 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
1030 info->port_attr.show = show_port_type;
1031 info->port_attr.store = set_port_type;
Greg Kroah-Hartman3691c962010-03-15 14:01:55 -07001032 sysfs_attr_init(&info->port_attr.attr);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001033
1034 err = device_create_file(&dev->pdev->dev, &info->port_attr);
1035 if (err) {
1036 mlx4_err(dev, "Failed to create file for port %d\n", port);
1037 info->port = -1;
1038 }
1039
1040 return err;
1041}
1042
1043static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
1044{
1045 if (info->port < 0)
1046 return;
1047
1048 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
Yevgeny Petrilin2a2336f2008-10-22 11:44:46 -07001049}
1050
Roland Dreier3d73c282007-10-10 15:43:54 -07001051static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
Roland Dreier225c7b12007-05-08 18:00:38 -07001052{
Roland Dreier225c7b12007-05-08 18:00:38 -07001053 struct mlx4_priv *priv;
1054 struct mlx4_dev *dev;
1055 int err;
Yevgeny Petrilin2a2336f2008-10-22 11:44:46 -07001056 int port;
Roland Dreier225c7b12007-05-08 18:00:38 -07001057
Joe Perches0a645e82010-07-10 07:22:46 +00001058 pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
Roland Dreier225c7b12007-05-08 18:00:38 -07001059
1060 err = pci_enable_device(pdev);
1061 if (err) {
1062 dev_err(&pdev->dev, "Cannot enable PCI device, "
1063 "aborting.\n");
1064 return err;
1065 }
1066
1067 /*
Eli Cohen4ff08a72008-04-16 21:09:35 -07001068 * Check for BARs. We expect 0: 1MB
Roland Dreier225c7b12007-05-08 18:00:38 -07001069 */
1070 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1071 pci_resource_len(pdev, 0) != 1 << 20) {
1072 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1073 err = -ENODEV;
1074 goto err_disable_pdev;
1075 }
1076 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1077 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1078 err = -ENODEV;
1079 goto err_disable_pdev;
1080 }
1081
Roland Dreiera01df0f2009-09-05 20:24:48 -07001082 err = pci_request_regions(pdev, DRV_NAME);
Roland Dreier225c7b12007-05-08 18:00:38 -07001083 if (err) {
Roland Dreiera01df0f2009-09-05 20:24:48 -07001084 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
Roland Dreier225c7b12007-05-08 18:00:38 -07001085 goto err_disable_pdev;
1086 }
1087
Roland Dreier225c7b12007-05-08 18:00:38 -07001088 pci_set_master(pdev);
1089
Yang Hongyang6a355282009-04-06 19:01:13 -07001090 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
Roland Dreier225c7b12007-05-08 18:00:38 -07001091 if (err) {
1092 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
Yang Hongyang284901a2009-04-06 19:01:15 -07001093 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
Roland Dreier225c7b12007-05-08 18:00:38 -07001094 if (err) {
1095 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
Roland Dreiera01df0f2009-09-05 20:24:48 -07001096 goto err_release_regions;
Roland Dreier225c7b12007-05-08 18:00:38 -07001097 }
1098 }
Yang Hongyang6a355282009-04-06 19:01:13 -07001099 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
Roland Dreier225c7b12007-05-08 18:00:38 -07001100 if (err) {
1101 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1102 "consistent PCI DMA mask.\n");
Yang Hongyang284901a2009-04-06 19:01:15 -07001103 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
Roland Dreier225c7b12007-05-08 18:00:38 -07001104 if (err) {
1105 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1106 "aborting.\n");
Roland Dreiera01df0f2009-09-05 20:24:48 -07001107 goto err_release_regions;
Roland Dreier225c7b12007-05-08 18:00:38 -07001108 }
1109 }
1110
1111 priv = kzalloc(sizeof *priv, GFP_KERNEL);
1112 if (!priv) {
1113 dev_err(&pdev->dev, "Device struct alloc failed, "
1114 "aborting.\n");
1115 err = -ENOMEM;
Roland Dreiera01df0f2009-09-05 20:24:48 -07001116 goto err_release_regions;
Roland Dreier225c7b12007-05-08 18:00:38 -07001117 }
1118
1119 dev = &priv->dev;
1120 dev->pdev = pdev;
Roland Dreierb5814012007-06-07 11:51:58 -07001121 INIT_LIST_HEAD(&priv->ctx_list);
1122 spin_lock_init(&priv->ctx_lock);
Roland Dreier225c7b12007-05-08 18:00:38 -07001123
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001124 mutex_init(&priv->port_mutex);
1125
Yevgeny Petrilin62968832008-04-23 11:55:45 -07001126 INIT_LIST_HEAD(&priv->pgdir_list);
1127 mutex_init(&priv->pgdir_mutex);
1128
Roland Dreier225c7b12007-05-08 18:00:38 -07001129 /*
1130 * Now reset the HCA before we touch the PCI capabilities or
1131 * attempt a firmware command, since a boot ROM may have left
1132 * the HCA in an undefined state.
1133 */
1134 err = mlx4_reset(dev);
1135 if (err) {
1136 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
1137 goto err_free_dev;
1138 }
1139
Roland Dreier225c7b12007-05-08 18:00:38 -07001140 if (mlx4_cmd_init(dev)) {
1141 mlx4_err(dev, "Failed to init command interface, aborting.\n");
1142 goto err_free_dev;
1143 }
1144
1145 err = mlx4_init_hca(dev);
1146 if (err)
1147 goto err_cmd;
1148
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001149 err = mlx4_alloc_eq_table(dev);
1150 if (err)
1151 goto err_close;
1152
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +03001153 mlx4_enable_msi_x(dev);
1154
Roland Dreier225c7b12007-05-08 18:00:38 -07001155 err = mlx4_setup_hca(dev);
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +03001156 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
1157 dev->flags &= ~MLX4_FLAG_MSI_X;
1158 pci_disable_msix(pdev);
1159 err = mlx4_setup_hca(dev);
1160 }
1161
Roland Dreier225c7b12007-05-08 18:00:38 -07001162 if (err)
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001163 goto err_free_eq;
Roland Dreier225c7b12007-05-08 18:00:38 -07001164
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001165 for (port = 1; port <= dev->caps.num_ports; port++) {
1166 err = mlx4_init_port_info(dev, port);
1167 if (err)
1168 goto err_port;
1169 }
Yevgeny Petrilin2a2336f2008-10-22 11:44:46 -07001170
Roland Dreier225c7b12007-05-08 18:00:38 -07001171 err = mlx4_register_device(dev);
1172 if (err)
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001173 goto err_port;
Roland Dreier225c7b12007-05-08 18:00:38 -07001174
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -07001175 mlx4_sense_init(dev);
1176 mlx4_start_sense(dev);
1177
Roland Dreier225c7b12007-05-08 18:00:38 -07001178 pci_set_drvdata(pdev, dev);
1179
1180 return 0;
1181
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001182err_port:
Eli Cohenb4f77262010-01-06 12:54:39 -08001183 for (--port; port >= 1; --port)
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001184 mlx4_cleanup_port_info(&priv->port[port]);
1185
Roland Dreier225c7b12007-05-08 18:00:38 -07001186 mlx4_cleanup_mcg_table(dev);
1187 mlx4_cleanup_qp_table(dev);
1188 mlx4_cleanup_srq_table(dev);
1189 mlx4_cleanup_cq_table(dev);
1190 mlx4_cmd_use_polling(dev);
1191 mlx4_cleanup_eq_table(dev);
Roland Dreier225c7b12007-05-08 18:00:38 -07001192 mlx4_cleanup_mr_table(dev);
1193 mlx4_cleanup_pd_table(dev);
1194 mlx4_cleanup_uar_table(dev);
1195
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001196err_free_eq:
1197 mlx4_free_eq_table(dev);
1198
Roland Dreier225c7b12007-05-08 18:00:38 -07001199err_close:
Michael S. Tsirkin08fb1052007-08-07 16:08:28 +03001200 if (dev->flags & MLX4_FLAG_MSI_X)
1201 pci_disable_msix(pdev);
1202
Roland Dreier225c7b12007-05-08 18:00:38 -07001203 mlx4_close_hca(dev);
1204
1205err_cmd:
1206 mlx4_cmd_cleanup(dev);
1207
1208err_free_dev:
Roland Dreier225c7b12007-05-08 18:00:38 -07001209 kfree(priv);
1210
Roland Dreiera01df0f2009-09-05 20:24:48 -07001211err_release_regions:
1212 pci_release_regions(pdev);
Roland Dreier225c7b12007-05-08 18:00:38 -07001213
1214err_disable_pdev:
1215 pci_disable_device(pdev);
1216 pci_set_drvdata(pdev, NULL);
1217 return err;
1218}
1219
Roland Dreier3d73c282007-10-10 15:43:54 -07001220static int __devinit mlx4_init_one(struct pci_dev *pdev,
1221 const struct pci_device_id *id)
1222{
Joe Perches0a645e82010-07-10 07:22:46 +00001223 printk_once(KERN_INFO "%s", mlx4_version);
Roland Dreier3d73c282007-10-10 15:43:54 -07001224
Roland Dreierb027cac2007-10-13 14:10:50 -07001225 return __mlx4_init_one(pdev, id);
Roland Dreier3d73c282007-10-10 15:43:54 -07001226}
1227
1228static void mlx4_remove_one(struct pci_dev *pdev)
Roland Dreier225c7b12007-05-08 18:00:38 -07001229{
1230 struct mlx4_dev *dev = pci_get_drvdata(pdev);
1231 struct mlx4_priv *priv = mlx4_priv(dev);
1232 int p;
1233
1234 if (dev) {
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -07001235 mlx4_stop_sense(dev);
Roland Dreier225c7b12007-05-08 18:00:38 -07001236 mlx4_unregister_device(dev);
1237
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001238 for (p = 1; p <= dev->caps.num_ports; p++) {
1239 mlx4_cleanup_port_info(&priv->port[p]);
Roland Dreier225c7b12007-05-08 18:00:38 -07001240 mlx4_CLOSE_PORT(dev, p);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001241 }
Roland Dreier225c7b12007-05-08 18:00:38 -07001242
1243 mlx4_cleanup_mcg_table(dev);
1244 mlx4_cleanup_qp_table(dev);
1245 mlx4_cleanup_srq_table(dev);
1246 mlx4_cleanup_cq_table(dev);
1247 mlx4_cmd_use_polling(dev);
1248 mlx4_cleanup_eq_table(dev);
Roland Dreier225c7b12007-05-08 18:00:38 -07001249 mlx4_cleanup_mr_table(dev);
1250 mlx4_cleanup_pd_table(dev);
1251
1252 iounmap(priv->kar);
1253 mlx4_uar_free(dev, &priv->driver_uar);
1254 mlx4_cleanup_uar_table(dev);
Yevgeny Petrilinb8dd7862008-12-22 07:15:03 -08001255 mlx4_free_eq_table(dev);
Roland Dreier225c7b12007-05-08 18:00:38 -07001256 mlx4_close_hca(dev);
1257 mlx4_cmd_cleanup(dev);
1258
1259 if (dev->flags & MLX4_FLAG_MSI_X)
1260 pci_disable_msix(pdev);
1261
1262 kfree(priv);
Roland Dreiera01df0f2009-09-05 20:24:48 -07001263 pci_release_regions(pdev);
Roland Dreier225c7b12007-05-08 18:00:38 -07001264 pci_disable_device(pdev);
1265 pci_set_drvdata(pdev, NULL);
1266 }
1267}
1268
Jack Morgensteinee49bd92007-07-12 17:50:45 +03001269int mlx4_restart_one(struct pci_dev *pdev)
1270{
1271 mlx4_remove_one(pdev);
Roland Dreier3d73c282007-10-10 15:43:54 -07001272 return __mlx4_init_one(pdev, NULL);
Jack Morgensteinee49bd92007-07-12 17:50:45 +03001273}
1274
Alexey Dobriyana3aa1882010-01-07 11:58:11 +00001275static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
Roland Dreier225c7b12007-05-08 18:00:38 -07001276 { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */
1277 { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */
1278 { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
Jack Morgenstein786f2382007-07-02 17:36:18 +03001279 { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */
1280 { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
Yevgeny Petrilin57893d12008-10-22 15:48:03 -07001281 { PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
1282 { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
Jack Morgenstein085343b2009-02-27 10:29:13 -08001283 { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
1284 { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
Yevgeny Petrilin92bd3bb2009-07-06 16:10:40 -07001285 { PCI_VDEVICE(MELLANOX, 0x6764) }, /* MT26468 ConnectX EN 10GigE PCIe gen2*/
Eli Cohen06c3aa52009-10-14 10:52:40 -07001286 { PCI_VDEVICE(MELLANOX, 0x6746) }, /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
Yevgeny Petriline76d0b62009-10-07 15:46:49 -07001287 { PCI_VDEVICE(MELLANOX, 0x676e) }, /* MT26478 ConnectX2 40GigE PCIe gen2 */
Roland Dreier225c7b12007-05-08 18:00:38 -07001288 { 0, }
1289};
1290
1291MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
1292
1293static struct pci_driver mlx4_driver = {
1294 .name = DRV_NAME,
1295 .id_table = mlx4_pci_table,
1296 .probe = mlx4_init_one,
1297 .remove = __devexit_p(mlx4_remove_one)
1298};
1299
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001300static int __init mlx4_verify_params(void)
1301{
1302 if ((log_num_mac < 0) || (log_num_mac > 7)) {
Joe Perches0a645e82010-07-10 07:22:46 +00001303 pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001304 return -1;
1305 }
1306
1307 if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
Joe Perches0a645e82010-07-10 07:22:46 +00001308 pr_warning("mlx4_core: bad num_vlan: %d\n", log_num_vlan);
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001309 return -1;
1310 }
1311
Eli Cohenab6bf422009-05-27 14:38:34 -07001312 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
Joe Perches0a645e82010-07-10 07:22:46 +00001313 pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
Eli Cohenab6bf422009-05-27 14:38:34 -07001314 return -1;
1315 }
1316
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001317 return 0;
1318}
1319
Roland Dreier225c7b12007-05-08 18:00:38 -07001320static int __init mlx4_init(void)
1321{
1322 int ret;
1323
Yevgeny Petrilin7ff93f82008-10-22 15:38:42 -07001324 if (mlx4_verify_params())
1325 return -EINVAL;
1326
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -07001327 mlx4_catas_init();
1328
1329 mlx4_wq = create_singlethread_workqueue("mlx4");
1330 if (!mlx4_wq)
1331 return -ENOMEM;
Jack Morgensteinee49bd92007-07-12 17:50:45 +03001332
Roland Dreier225c7b12007-05-08 18:00:38 -07001333 ret = pci_register_driver(&mlx4_driver);
1334 return ret < 0 ? ret : 0;
1335}
1336
1337static void __exit mlx4_cleanup(void)
1338{
1339 pci_unregister_driver(&mlx4_driver);
Yevgeny Petrilin27bf91d2009-03-18 19:45:11 -07001340 destroy_workqueue(mlx4_wq);
Roland Dreier225c7b12007-05-08 18:00:38 -07001341}
1342
1343module_init(mlx4_init);
1344module_exit(mlx4_cleanup);