1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
5 * 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>
41
42 #include <linux/mlx4/device.h>
43 #include <linux/mlx4/doorbell.h>
44
45 #include "mlx4.h"
46 #include "fw.h"
47 #include "icm.h"
48
49 MODULE_AUTHOR("Roland Dreier");
50 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
51 MODULE_LICENSE("Dual BSD/GPL");
52 MODULE_VERSION(DRV_VERSION);
53
54 #ifdef CONFIG_MLX4_DEBUG
55
56 int mlx4_debug_level = 0;
57 module_param_named(debug_level, mlx4_debug_level, int, 0644);
58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
59
60 #endif /* CONFIG_MLX4_DEBUG */
61
62 #ifdef CONFIG_PCI_MSI
63
64 static int msi_x = 1;
65 module_param(msi_x, int, 0444);
66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
67
68 #else /* CONFIG_PCI_MSI */
69
70 #define msi_x (0)
71
72 #endif /* CONFIG_PCI_MSI */
73
74 static char mlx4_version[] __devinitdata =
75 DRV_NAME ": Mellanox ConnectX core driver v"
76 DRV_VERSION " (" DRV_RELDATE ")\n";
77
78 static struct mlx4_profile default_profile = {
79 .num_qp = 1 << 17,
80 .num_srq = 1 << 16,
81 .rdmarc_per_qp = 1 << 4,
82 .num_cq = 1 << 16,
83 .num_mcg = 1 << 13,
84 .num_mpt = 1 << 17,
85 .num_mtt = 1 << 20,
86 };
87
88 static int log_num_mac = 2;
89 module_param_named(log_num_mac, log_num_mac, int, 0444);
90 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
91
92 static int log_num_vlan;
93 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
94 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
95
96 static int use_prio;
97 module_param_named(use_prio, use_prio, bool, 0444);
98 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
99 "(0/1, default 0)");
100
mlx4_check_port_params(struct mlx4_dev * dev,enum mlx4_port_type * port_type)101 static int mlx4_check_port_params(struct mlx4_dev *dev,
102 enum mlx4_port_type *port_type)
103 {
104 int i;
105
106 for (i = 0; i < dev->caps.num_ports - 1; i++) {
107 if (port_type[i] != port_type[i+1] &&
108 !(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
109 mlx4_err(dev, "Only same port types supported "
110 "on this HCA, aborting.\n");
111 return -EINVAL;
112 }
113 }
114 if ((port_type[0] == MLX4_PORT_TYPE_ETH) &&
115 (port_type[1] == MLX4_PORT_TYPE_IB)) {
116 mlx4_err(dev, "eth-ib configuration is not supported.\n");
117 return -EINVAL;
118 }
119
120 for (i = 0; i < dev->caps.num_ports; i++) {
121 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
122 mlx4_err(dev, "Requested port type for port %d is not "
123 "supported on this HCA\n", i + 1);
124 return -EINVAL;
125 }
126 }
127 return 0;
128 }
129
mlx4_set_port_mask(struct mlx4_dev * dev)130 static void mlx4_set_port_mask(struct mlx4_dev *dev)
131 {
132 int i;
133
134 dev->caps.port_mask = 0;
135 for (i = 1; i <= dev->caps.num_ports; ++i)
136 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB)
137 dev->caps.port_mask |= 1 << (i - 1);
138 }
mlx4_dev_cap(struct mlx4_dev * dev,struct mlx4_dev_cap * dev_cap)139 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
140 {
141 int err;
142 int i;
143
144 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
145 if (err) {
146 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
147 return err;
148 }
149
150 if (dev_cap->min_page_sz > PAGE_SIZE) {
151 mlx4_err(dev, "HCA minimum page size of %d bigger than "
152 "kernel PAGE_SIZE of %ld, aborting.\n",
153 dev_cap->min_page_sz, PAGE_SIZE);
154 return -ENODEV;
155 }
156 if (dev_cap->num_ports > MLX4_MAX_PORTS) {
157 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
158 "aborting.\n",
159 dev_cap->num_ports, MLX4_MAX_PORTS);
160 return -ENODEV;
161 }
162
163 if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
164 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
165 "PCI resource 2 size of 0x%llx, aborting.\n",
166 dev_cap->uar_size,
167 (unsigned long long) pci_resource_len(dev->pdev, 2));
168 return -ENODEV;
169 }
170
171 dev->caps.num_ports = dev_cap->num_ports;
172 for (i = 1; i <= dev->caps.num_ports; ++i) {
173 dev->caps.vl_cap[i] = dev_cap->max_vl[i];
174 dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
175 dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
176 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
177 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
178 dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
179 dev->caps.def_mac[i] = dev_cap->def_mac[i];
180 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
181 }
182
183 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
184 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
185 dev->caps.bf_reg_size = dev_cap->bf_reg_size;
186 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
187 dev->caps.max_sq_sg = dev_cap->max_sq_sg;
188 dev->caps.max_rq_sg = dev_cap->max_rq_sg;
189 dev->caps.max_wqes = dev_cap->max_qp_sz;
190 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
191 dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
192 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
193 dev->caps.reserved_srqs = dev_cap->reserved_srqs;
194 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
195 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
196 dev->caps.num_qp_per_mgm = MLX4_QP_PER_MGM;
197 /*
198 * Subtract 1 from the limit because we need to allocate a
199 * spare CQE so the HCA HW can tell the difference between an
200 * empty CQ and a full CQ.
201 */
202 dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
203 dev->caps.reserved_cqs = dev_cap->reserved_cqs;
204 dev->caps.reserved_eqs = dev_cap->reserved_eqs;
205 dev->caps.reserved_mtts = DIV_ROUND_UP(dev_cap->reserved_mtts,
206 MLX4_MTT_ENTRY_PER_SEG);
207 dev->caps.reserved_mrws = dev_cap->reserved_mrws;
208 dev->caps.reserved_uars = dev_cap->reserved_uars;
209 dev->caps.reserved_pds = dev_cap->reserved_pds;
210 dev->caps.mtt_entry_sz = MLX4_MTT_ENTRY_PER_SEG * dev_cap->mtt_entry_sz;
211 dev->caps.max_msg_sz = dev_cap->max_msg_sz;
212 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
213 dev->caps.flags = dev_cap->flags;
214 dev->caps.bmme_flags = dev_cap->bmme_flags;
215 dev->caps.reserved_lkey = dev_cap->reserved_lkey;
216 dev->caps.stat_rate_support = dev_cap->stat_rate_support;
217 dev->caps.max_gso_sz = dev_cap->max_gso_sz;
218
219 dev->caps.log_num_macs = log_num_mac;
220 dev->caps.log_num_vlans = log_num_vlan;
221 dev->caps.log_num_prios = use_prio ? 3 : 0;
222
223 for (i = 1; i <= dev->caps.num_ports; ++i) {
224 if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH)
225 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
226 else
227 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
228
229 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
230 dev->caps.log_num_macs = dev_cap->log_max_macs[i];
231 mlx4_warn(dev, "Requested number of MACs is too much "
232 "for port %d, reducing to %d.\n",
233 i, 1 << dev->caps.log_num_macs);
234 }
235 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
236 dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
237 mlx4_warn(dev, "Requested number of VLANs is too much "
238 "for port %d, reducing to %d.\n",
239 i, 1 << dev->caps.log_num_vlans);
240 }
241 }
242
243 mlx4_set_port_mask(dev);
244
245 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
246 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
247 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
248 (1 << dev->caps.log_num_macs) *
249 (1 << dev->caps.log_num_vlans) *
250 (1 << dev->caps.log_num_prios) *
251 dev->caps.num_ports;
252 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
253
254 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
255 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
256 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
257 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
258
259 return 0;
260 }
261
262 /*
263 * Change the port configuration of the device.
264 * Every user of this function must hold the port mutex.
265 */
mlx4_change_port_types(struct mlx4_dev * dev,enum mlx4_port_type * port_types)266 static int mlx4_change_port_types(struct mlx4_dev *dev,
267 enum mlx4_port_type *port_types)
268 {
269 int err = 0;
270 int change = 0;
271 int port;
272
273 for (port = 0; port < dev->caps.num_ports; port++) {
274 if (port_types[port] != dev->caps.port_type[port + 1]) {
275 change = 1;
276 dev->caps.port_type[port + 1] = port_types[port];
277 }
278 }
279 if (change) {
280 mlx4_unregister_device(dev);
281 for (port = 1; port <= dev->caps.num_ports; port++) {
282 mlx4_CLOSE_PORT(dev, port);
283 err = mlx4_SET_PORT(dev, port);
284 if (err) {
285 mlx4_err(dev, "Failed to set port %d, "
286 "aborting\n", port);
287 goto out;
288 }
289 }
290 mlx4_set_port_mask(dev);
291 err = mlx4_register_device(dev);
292 }
293
294 out:
295 return err;
296 }
297
show_port_type(struct device * dev,struct device_attribute * attr,char * buf)298 static ssize_t show_port_type(struct device *dev,
299 struct device_attribute *attr,
300 char *buf)
301 {
302 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
303 port_attr);
304 struct mlx4_dev *mdev = info->dev;
305
306 return sprintf(buf, "%s\n",
307 mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB ?
308 "ib" : "eth");
309 }
310
set_port_type(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)311 static ssize_t set_port_type(struct device *dev,
312 struct device_attribute *attr,
313 const char *buf, size_t count)
314 {
315 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
316 port_attr);
317 struct mlx4_dev *mdev = info->dev;
318 struct mlx4_priv *priv = mlx4_priv(mdev);
319 enum mlx4_port_type types[MLX4_MAX_PORTS];
320 int i;
321 int err = 0;
322
323 if (!strcmp(buf, "ib\n"))
324 info->tmp_type = MLX4_PORT_TYPE_IB;
325 else if (!strcmp(buf, "eth\n"))
326 info->tmp_type = MLX4_PORT_TYPE_ETH;
327 else {
328 mlx4_err(mdev, "%s is not supported port type\n", buf);
329 return -EINVAL;
330 }
331
332 mutex_lock(&priv->port_mutex);
333 for (i = 0; i < mdev->caps.num_ports; i++)
334 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
335 mdev->caps.port_type[i+1];
336
337 err = mlx4_check_port_params(mdev, types);
338 if (err)
339 goto out;
340
341 for (i = 1; i <= mdev->caps.num_ports; i++)
342 priv->port[i].tmp_type = 0;
343
344 err = mlx4_change_port_types(mdev, types);
345
346 out:
347 mutex_unlock(&priv->port_mutex);
348 return err ? err : count;
349 }
350
mlx4_load_fw(struct mlx4_dev * dev)351 static int mlx4_load_fw(struct mlx4_dev *dev)
352 {
353 struct mlx4_priv *priv = mlx4_priv(dev);
354 int err;
355
356 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
357 GFP_HIGHUSER | __GFP_NOWARN, 0);
358 if (!priv->fw.fw_icm) {
359 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
360 return -ENOMEM;
361 }
362
363 err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
364 if (err) {
365 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
366 goto err_free;
367 }
368
369 err = mlx4_RUN_FW(dev);
370 if (err) {
371 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
372 goto err_unmap_fa;
373 }
374
375 return 0;
376
377 err_unmap_fa:
378 mlx4_UNMAP_FA(dev);
379
380 err_free:
381 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
382 return err;
383 }
384
mlx4_init_cmpt_table(struct mlx4_dev * dev,u64 cmpt_base,int cmpt_entry_sz)385 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
386 int cmpt_entry_sz)
387 {
388 struct mlx4_priv *priv = mlx4_priv(dev);
389 int err;
390
391 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
392 cmpt_base +
393 ((u64) (MLX4_CMPT_TYPE_QP *
394 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
395 cmpt_entry_sz, dev->caps.num_qps,
396 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
397 0, 0);
398 if (err)
399 goto err;
400
401 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
402 cmpt_base +
403 ((u64) (MLX4_CMPT_TYPE_SRQ *
404 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
405 cmpt_entry_sz, dev->caps.num_srqs,
406 dev->caps.reserved_srqs, 0, 0);
407 if (err)
408 goto err_qp;
409
410 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
411 cmpt_base +
412 ((u64) (MLX4_CMPT_TYPE_CQ *
413 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
414 cmpt_entry_sz, dev->caps.num_cqs,
415 dev->caps.reserved_cqs, 0, 0);
416 if (err)
417 goto err_srq;
418
419 err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
420 cmpt_base +
421 ((u64) (MLX4_CMPT_TYPE_EQ *
422 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
423 cmpt_entry_sz,
424 dev->caps.num_eqs, dev->caps.num_eqs, 0, 0);
425 if (err)
426 goto err_cq;
427
428 return 0;
429
430 err_cq:
431 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
432
433 err_srq:
434 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
435
436 err_qp:
437 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
438
439 err:
440 return err;
441 }
442
mlx4_init_icm(struct mlx4_dev * dev,struct mlx4_dev_cap * dev_cap,struct mlx4_init_hca_param * init_hca,u64 icm_size)443 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
444 struct mlx4_init_hca_param *init_hca, u64 icm_size)
445 {
446 struct mlx4_priv *priv = mlx4_priv(dev);
447 u64 aux_pages;
448 int err;
449
450 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
451 if (err) {
452 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
453 return err;
454 }
455
456 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
457 (unsigned long long) icm_size >> 10,
458 (unsigned long long) aux_pages << 2);
459
460 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
461 GFP_HIGHUSER | __GFP_NOWARN, 0);
462 if (!priv->fw.aux_icm) {
463 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
464 return -ENOMEM;
465 }
466
467 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
468 if (err) {
469 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
470 goto err_free_aux;
471 }
472
473 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
474 if (err) {
475 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
476 goto err_unmap_aux;
477 }
478
479 err = mlx4_map_eq_icm(dev, init_hca->eqc_base);
480 if (err) {
481 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
482 goto err_unmap_cmpt;
483 }
484
485 /*
486 * Reserved MTT entries must be aligned up to a cacheline
487 * boundary, since the FW will write to them, while the driver
488 * writes to all other MTT entries. (The variable
489 * dev->caps.mtt_entry_sz below is really the MTT segment
490 * size, not the raw entry size)
491 */
492 dev->caps.reserved_mtts =
493 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
494 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
495
496 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
497 init_hca->mtt_base,
498 dev->caps.mtt_entry_sz,
499 dev->caps.num_mtt_segs,
500 dev->caps.reserved_mtts, 1, 0);
501 if (err) {
502 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
503 goto err_unmap_eq;
504 }
505
506 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
507 init_hca->dmpt_base,
508 dev_cap->dmpt_entry_sz,
509 dev->caps.num_mpts,
510 dev->caps.reserved_mrws, 1, 1);
511 if (err) {
512 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
513 goto err_unmap_mtt;
514 }
515
516 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
517 init_hca->qpc_base,
518 dev_cap->qpc_entry_sz,
519 dev->caps.num_qps,
520 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
521 0, 0);
522 if (err) {
523 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
524 goto err_unmap_dmpt;
525 }
526
527 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
528 init_hca->auxc_base,
529 dev_cap->aux_entry_sz,
530 dev->caps.num_qps,
531 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
532 0, 0);
533 if (err) {
534 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
535 goto err_unmap_qp;
536 }
537
538 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
539 init_hca->altc_base,
540 dev_cap->altc_entry_sz,
541 dev->caps.num_qps,
542 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
543 0, 0);
544 if (err) {
545 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
546 goto err_unmap_auxc;
547 }
548
549 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
550 init_hca->rdmarc_base,
551 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
552 dev->caps.num_qps,
553 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
554 0, 0);
555 if (err) {
556 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
557 goto err_unmap_altc;
558 }
559
560 err = mlx4_init_icm_table(dev, &priv->cq_table.table,
561 init_hca->cqc_base,
562 dev_cap->cqc_entry_sz,
563 dev->caps.num_cqs,
564 dev->caps.reserved_cqs, 0, 0);
565 if (err) {
566 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
567 goto err_unmap_rdmarc;
568 }
569
570 err = mlx4_init_icm_table(dev, &priv->srq_table.table,
571 init_hca->srqc_base,
572 dev_cap->srq_entry_sz,
573 dev->caps.num_srqs,
574 dev->caps.reserved_srqs, 0, 0);
575 if (err) {
576 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
577 goto err_unmap_cq;
578 }
579
580 /*
581 * It's not strictly required, but for simplicity just map the
582 * whole multicast group table now. The table isn't very big
583 * and it's a lot easier than trying to track ref counts.
584 */
585 err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
586 init_hca->mc_base, MLX4_MGM_ENTRY_SIZE,
587 dev->caps.num_mgms + dev->caps.num_amgms,
588 dev->caps.num_mgms + dev->caps.num_amgms,
589 0, 0);
590 if (err) {
591 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
592 goto err_unmap_srq;
593 }
594
595 return 0;
596
597 err_unmap_srq:
598 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
599
600 err_unmap_cq:
601 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
602
603 err_unmap_rdmarc:
604 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
605
606 err_unmap_altc:
607 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
608
609 err_unmap_auxc:
610 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
611
612 err_unmap_qp:
613 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
614
615 err_unmap_dmpt:
616 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
617
618 err_unmap_mtt:
619 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
620
621 err_unmap_eq:
622 mlx4_unmap_eq_icm(dev);
623
624 err_unmap_cmpt:
625 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
626 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
627 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
628 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
629
630 err_unmap_aux:
631 mlx4_UNMAP_ICM_AUX(dev);
632
633 err_free_aux:
634 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
635
636 return err;
637 }
638
mlx4_free_icms(struct mlx4_dev * dev)639 static void mlx4_free_icms(struct mlx4_dev *dev)
640 {
641 struct mlx4_priv *priv = mlx4_priv(dev);
642
643 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
644 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
645 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
646 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
647 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
648 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
649 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
650 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
651 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
652 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
653 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
654 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
655 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
656 mlx4_unmap_eq_icm(dev);
657
658 mlx4_UNMAP_ICM_AUX(dev);
659 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
660 }
661
mlx4_close_hca(struct mlx4_dev * dev)662 static void mlx4_close_hca(struct mlx4_dev *dev)
663 {
664 mlx4_CLOSE_HCA(dev, 0);
665 mlx4_free_icms(dev);
666 mlx4_UNMAP_FA(dev);
667 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
668 }
669
mlx4_init_hca(struct mlx4_dev * dev)670 static int mlx4_init_hca(struct mlx4_dev *dev)
671 {
672 struct mlx4_priv *priv = mlx4_priv(dev);
673 struct mlx4_adapter adapter;
674 struct mlx4_dev_cap dev_cap;
675 struct mlx4_mod_stat_cfg mlx4_cfg;
676 struct mlx4_profile profile;
677 struct mlx4_init_hca_param init_hca;
678 u64 icm_size;
679 int err;
680
681 err = mlx4_QUERY_FW(dev);
682 if (err) {
683 mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
684 return err;
685 }
686
687 err = mlx4_load_fw(dev);
688 if (err) {
689 mlx4_err(dev, "Failed to start FW, aborting.\n");
690 return err;
691 }
692
693 mlx4_cfg.log_pg_sz_m = 1;
694 mlx4_cfg.log_pg_sz = 0;
695 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
696 if (err)
697 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
698
699 err = mlx4_dev_cap(dev, &dev_cap);
700 if (err) {
701 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
702 goto err_stop_fw;
703 }
704
705 profile = default_profile;
706
707 icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca);
708 if ((long long) icm_size < 0) {
709 err = icm_size;
710 goto err_stop_fw;
711 }
712
713 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
714
715 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
716 if (err)
717 goto err_stop_fw;
718
719 err = mlx4_INIT_HCA(dev, &init_hca);
720 if (err) {
721 mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
722 goto err_free_icm;
723 }
724
725 err = mlx4_QUERY_ADAPTER(dev, &adapter);
726 if (err) {
727 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
728 goto err_close;
729 }
730
731 priv->eq_table.inta_pin = adapter.inta_pin;
732 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
733
734 return 0;
735
736 err_close:
737 mlx4_close_hca(dev);
738
739 err_free_icm:
740 mlx4_free_icms(dev);
741
742 err_stop_fw:
743 mlx4_UNMAP_FA(dev);
744 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
745
746 return err;
747 }
748
mlx4_setup_hca(struct mlx4_dev * dev)749 static int mlx4_setup_hca(struct mlx4_dev *dev)
750 {
751 struct mlx4_priv *priv = mlx4_priv(dev);
752 int err;
753 int port;
754 __be32 ib_port_default_caps;
755
756 err = mlx4_init_uar_table(dev);
757 if (err) {
758 mlx4_err(dev, "Failed to initialize "
759 "user access region table, aborting.\n");
760 return err;
761 }
762
763 err = mlx4_uar_alloc(dev, &priv->driver_uar);
764 if (err) {
765 mlx4_err(dev, "Failed to allocate driver access region, "
766 "aborting.\n");
767 goto err_uar_table_free;
768 }
769
770 priv->kar = ioremap(priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
771 if (!priv->kar) {
772 mlx4_err(dev, "Couldn't map kernel access region, "
773 "aborting.\n");
774 err = -ENOMEM;
775 goto err_uar_free;
776 }
777
778 err = mlx4_init_pd_table(dev);
779 if (err) {
780 mlx4_err(dev, "Failed to initialize "
781 "protection domain table, aborting.\n");
782 goto err_kar_unmap;
783 }
784
785 err = mlx4_init_mr_table(dev);
786 if (err) {
787 mlx4_err(dev, "Failed to initialize "
788 "memory region table, aborting.\n");
789 goto err_pd_table_free;
790 }
791
792 err = mlx4_init_eq_table(dev);
793 if (err) {
794 mlx4_err(dev, "Failed to initialize "
795 "event queue table, aborting.\n");
796 goto err_mr_table_free;
797 }
798
799 err = mlx4_cmd_use_events(dev);
800 if (err) {
801 mlx4_err(dev, "Failed to switch to event-driven "
802 "firmware commands, aborting.\n");
803 goto err_eq_table_free;
804 }
805
806 err = mlx4_NOP(dev);
807 if (err) {
808 if (dev->flags & MLX4_FLAG_MSI_X) {
809 mlx4_warn(dev, "NOP command failed to generate MSI-X "
810 "interrupt IRQ %d).\n",
811 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
812 mlx4_warn(dev, "Trying again without MSI-X.\n");
813 } else {
814 mlx4_err(dev, "NOP command failed to generate interrupt "
815 "(IRQ %d), aborting.\n",
816 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
817 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
818 }
819
820 goto err_cmd_poll;
821 }
822
823 mlx4_dbg(dev, "NOP command IRQ test passed\n");
824
825 err = mlx4_init_cq_table(dev);
826 if (err) {
827 mlx4_err(dev, "Failed to initialize "
828 "completion queue table, aborting.\n");
829 goto err_cmd_poll;
830 }
831
832 err = mlx4_init_srq_table(dev);
833 if (err) {
834 mlx4_err(dev, "Failed to initialize "
835 "shared receive queue table, aborting.\n");
836 goto err_cq_table_free;
837 }
838
839 err = mlx4_init_qp_table(dev);
840 if (err) {
841 mlx4_err(dev, "Failed to initialize "
842 "queue pair table, aborting.\n");
843 goto err_srq_table_free;
844 }
845
846 err = mlx4_init_mcg_table(dev);
847 if (err) {
848 mlx4_err(dev, "Failed to initialize "
849 "multicast group table, aborting.\n");
850 goto err_qp_table_free;
851 }
852
853 for (port = 1; port <= dev->caps.num_ports; port++) {
854 ib_port_default_caps = 0;
855 err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
856 if (err)
857 mlx4_warn(dev, "failed to get port %d default "
858 "ib capabilities (%d). Continuing with "
859 "caps = 0\n", port, err);
860 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
861 err = mlx4_SET_PORT(dev, port);
862 if (err) {
863 mlx4_err(dev, "Failed to set port %d, aborting\n",
864 port);
865 goto err_mcg_table_free;
866 }
867 }
868
869 return 0;
870
871 err_mcg_table_free:
872 mlx4_cleanup_mcg_table(dev);
873
874 err_qp_table_free:
875 mlx4_cleanup_qp_table(dev);
876
877 err_srq_table_free:
878 mlx4_cleanup_srq_table(dev);
879
880 err_cq_table_free:
881 mlx4_cleanup_cq_table(dev);
882
883 err_cmd_poll:
884 mlx4_cmd_use_polling(dev);
885
886 err_eq_table_free:
887 mlx4_cleanup_eq_table(dev);
888
889 err_mr_table_free:
890 mlx4_cleanup_mr_table(dev);
891
892 err_pd_table_free:
893 mlx4_cleanup_pd_table(dev);
894
895 err_kar_unmap:
896 iounmap(priv->kar);
897
898 err_uar_free:
899 mlx4_uar_free(dev, &priv->driver_uar);
900
901 err_uar_table_free:
902 mlx4_cleanup_uar_table(dev);
903 return err;
904 }
905
mlx4_enable_msi_x(struct mlx4_dev * dev)906 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
907 {
908 struct mlx4_priv *priv = mlx4_priv(dev);
909 struct msix_entry *entries;
910 int nreq;
911 int err;
912 int i;
913
914 if (msi_x) {
915 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
916 num_possible_cpus() + 1);
917 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
918 if (!entries)
919 goto no_msi;
920
921 for (i = 0; i < nreq; ++i)
922 entries[i].entry = i;
923
924 retry:
925 err = pci_enable_msix(dev->pdev, entries, nreq);
926 if (err) {
927 /* Try again if at least 2 vectors are available */
928 if (err > 1) {
929 mlx4_info(dev, "Requested %d vectors, "
930 "but only %d MSI-X vectors available, "
931 "trying again\n", nreq, err);
932 nreq = err;
933 goto retry;
934 }
935
936 goto no_msi;
937 }
938
939 dev->caps.num_comp_vectors = nreq - 1;
940 for (i = 0; i < nreq; ++i)
941 priv->eq_table.eq[i].irq = entries[i].vector;
942
943 dev->flags |= MLX4_FLAG_MSI_X;
944
945 kfree(entries);
946 return;
947 }
948
949 no_msi:
950 dev->caps.num_comp_vectors = 1;
951
952 for (i = 0; i < 2; ++i)
953 priv->eq_table.eq[i].irq = dev->pdev->irq;
954 }
955
mlx4_init_port_info(struct mlx4_dev * dev,int port)956 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
957 {
958 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
959 int err = 0;
960
961 info->dev = dev;
962 info->port = port;
963 mlx4_init_mac_table(dev, &info->mac_table);
964 mlx4_init_vlan_table(dev, &info->vlan_table);
965
966 sprintf(info->dev_name, "mlx4_port%d", port);
967 info->port_attr.attr.name = info->dev_name;
968 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
969 info->port_attr.show = show_port_type;
970 info->port_attr.store = set_port_type;
971
972 err = device_create_file(&dev->pdev->dev, &info->port_attr);
973 if (err) {
974 mlx4_err(dev, "Failed to create file for port %d\n", port);
975 info->port = -1;
976 }
977
978 return err;
979 }
980
mlx4_cleanup_port_info(struct mlx4_port_info * info)981 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
982 {
983 if (info->port < 0)
984 return;
985
986 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
987 }
988
__mlx4_init_one(struct pci_dev * pdev,const struct pci_device_id * id)989 static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
990 {
991 struct mlx4_priv *priv;
992 struct mlx4_dev *dev;
993 int err;
994 int port;
995
996 printk(KERN_INFO PFX "Initializing %s\n",
997 pci_name(pdev));
998
999 err = pci_enable_device(pdev);
1000 if (err) {
1001 dev_err(&pdev->dev, "Cannot enable PCI device, "
1002 "aborting.\n");
1003 return err;
1004 }
1005
1006 /*
1007 * Check for BARs. We expect 0: 1MB
1008 */
1009 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1010 pci_resource_len(pdev, 0) != 1 << 20) {
1011 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1012 err = -ENODEV;
1013 goto err_disable_pdev;
1014 }
1015 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1016 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1017 err = -ENODEV;
1018 goto err_disable_pdev;
1019 }
1020
1021 err = pci_request_region(pdev, 0, DRV_NAME);
1022 if (err) {
1023 dev_err(&pdev->dev, "Cannot request control region, aborting.\n");
1024 goto err_disable_pdev;
1025 }
1026
1027 err = pci_request_region(pdev, 2, DRV_NAME);
1028 if (err) {
1029 dev_err(&pdev->dev, "Cannot request UAR region, aborting.\n");
1030 goto err_release_bar0;
1031 }
1032
1033 pci_set_master(pdev);
1034
1035 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1036 if (err) {
1037 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1038 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1039 if (err) {
1040 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1041 goto err_release_bar2;
1042 }
1043 }
1044 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1045 if (err) {
1046 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1047 "consistent PCI DMA mask.\n");
1048 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1049 if (err) {
1050 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1051 "aborting.\n");
1052 goto err_release_bar2;
1053 }
1054 }
1055
1056 priv = kzalloc(sizeof *priv, GFP_KERNEL);
1057 if (!priv) {
1058 dev_err(&pdev->dev, "Device struct alloc failed, "
1059 "aborting.\n");
1060 err = -ENOMEM;
1061 goto err_release_bar2;
1062 }
1063
1064 dev = &priv->dev;
1065 dev->pdev = pdev;
1066 INIT_LIST_HEAD(&priv->ctx_list);
1067 spin_lock_init(&priv->ctx_lock);
1068
1069 mutex_init(&priv->port_mutex);
1070
1071 INIT_LIST_HEAD(&priv->pgdir_list);
1072 mutex_init(&priv->pgdir_mutex);
1073
1074 /*
1075 * Now reset the HCA before we touch the PCI capabilities or
1076 * attempt a firmware command, since a boot ROM may have left
1077 * the HCA in an undefined state.
1078 */
1079 err = mlx4_reset(dev);
1080 if (err) {
1081 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
1082 goto err_free_dev;
1083 }
1084
1085 if (mlx4_cmd_init(dev)) {
1086 mlx4_err(dev, "Failed to init command interface, aborting.\n");
1087 goto err_free_dev;
1088 }
1089
1090 err = mlx4_init_hca(dev);
1091 if (err)
1092 goto err_cmd;
1093
1094 err = mlx4_alloc_eq_table(dev);
1095 if (err)
1096 goto err_close;
1097
1098 mlx4_enable_msi_x(dev);
1099
1100 err = mlx4_setup_hca(dev);
1101 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
1102 dev->flags &= ~MLX4_FLAG_MSI_X;
1103 pci_disable_msix(pdev);
1104 err = mlx4_setup_hca(dev);
1105 }
1106
1107 if (err)
1108 goto err_free_eq;
1109
1110 for (port = 1; port <= dev->caps.num_ports; port++) {
1111 err = mlx4_init_port_info(dev, port);
1112 if (err)
1113 goto err_port;
1114 }
1115
1116 err = mlx4_register_device(dev);
1117 if (err)
1118 goto err_port;
1119
1120 pci_set_drvdata(pdev, dev);
1121
1122 return 0;
1123
1124 err_port:
1125 for (port = 1; port <= dev->caps.num_ports; port++)
1126 mlx4_cleanup_port_info(&priv->port[port]);
1127
1128 mlx4_cleanup_mcg_table(dev);
1129 mlx4_cleanup_qp_table(dev);
1130 mlx4_cleanup_srq_table(dev);
1131 mlx4_cleanup_cq_table(dev);
1132 mlx4_cmd_use_polling(dev);
1133 mlx4_cleanup_eq_table(dev);
1134 mlx4_cleanup_mr_table(dev);
1135 mlx4_cleanup_pd_table(dev);
1136 mlx4_cleanup_uar_table(dev);
1137
1138 err_free_eq:
1139 mlx4_free_eq_table(dev);
1140
1141 err_close:
1142 if (dev->flags & MLX4_FLAG_MSI_X)
1143 pci_disable_msix(pdev);
1144
1145 mlx4_close_hca(dev);
1146
1147 err_cmd:
1148 mlx4_cmd_cleanup(dev);
1149
1150 err_free_dev:
1151 kfree(priv);
1152
1153 err_release_bar2:
1154 pci_release_region(pdev, 2);
1155
1156 err_release_bar0:
1157 pci_release_region(pdev, 0);
1158
1159 err_disable_pdev:
1160 pci_disable_device(pdev);
1161 pci_set_drvdata(pdev, NULL);
1162 return err;
1163 }
1164
mlx4_init_one(struct pci_dev * pdev,const struct pci_device_id * id)1165 static int __devinit mlx4_init_one(struct pci_dev *pdev,
1166 const struct pci_device_id *id)
1167 {
1168 static int mlx4_version_printed;
1169
1170 if (!mlx4_version_printed) {
1171 printk(KERN_INFO "%s", mlx4_version);
1172 ++mlx4_version_printed;
1173 }
1174
1175 return __mlx4_init_one(pdev, id);
1176 }
1177
mlx4_remove_one(struct pci_dev * pdev)1178 static void mlx4_remove_one(struct pci_dev *pdev)
1179 {
1180 struct mlx4_dev *dev = pci_get_drvdata(pdev);
1181 struct mlx4_priv *priv = mlx4_priv(dev);
1182 int p;
1183
1184 if (dev) {
1185 mlx4_unregister_device(dev);
1186
1187 for (p = 1; p <= dev->caps.num_ports; p++) {
1188 mlx4_cleanup_port_info(&priv->port[p]);
1189 mlx4_CLOSE_PORT(dev, p);
1190 }
1191
1192 mlx4_cleanup_mcg_table(dev);
1193 mlx4_cleanup_qp_table(dev);
1194 mlx4_cleanup_srq_table(dev);
1195 mlx4_cleanup_cq_table(dev);
1196 mlx4_cmd_use_polling(dev);
1197 mlx4_cleanup_eq_table(dev);
1198 mlx4_cleanup_mr_table(dev);
1199 mlx4_cleanup_pd_table(dev);
1200
1201 iounmap(priv->kar);
1202 mlx4_uar_free(dev, &priv->driver_uar);
1203 mlx4_cleanup_uar_table(dev);
1204 mlx4_free_eq_table(dev);
1205 mlx4_close_hca(dev);
1206 mlx4_cmd_cleanup(dev);
1207
1208 if (dev->flags & MLX4_FLAG_MSI_X)
1209 pci_disable_msix(pdev);
1210
1211 kfree(priv);
1212 pci_release_region(pdev, 2);
1213 pci_release_region(pdev, 0);
1214 pci_disable_device(pdev);
1215 pci_set_drvdata(pdev, NULL);
1216 }
1217 }
1218
mlx4_restart_one(struct pci_dev * pdev)1219 int mlx4_restart_one(struct pci_dev *pdev)
1220 {
1221 mlx4_remove_one(pdev);
1222 return __mlx4_init_one(pdev, NULL);
1223 }
1224
1225 static struct pci_device_id mlx4_pci_table[] = {
1226 { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */
1227 { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */
1228 { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
1229 { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */
1230 { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
1231 { PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
1232 { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
1233 { 0, }
1234 };
1235
1236 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
1237
1238 static struct pci_driver mlx4_driver = {
1239 .name = DRV_NAME,
1240 .id_table = mlx4_pci_table,
1241 .probe = mlx4_init_one,
1242 .remove = __devexit_p(mlx4_remove_one)
1243 };
1244
mlx4_verify_params(void)1245 static int __init mlx4_verify_params(void)
1246 {
1247 if ((log_num_mac < 0) || (log_num_mac > 7)) {
1248 printk(KERN_WARNING "mlx4_core: bad num_mac: %d\n", log_num_mac);
1249 return -1;
1250 }
1251
1252 if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
1253 printk(KERN_WARNING "mlx4_core: bad num_vlan: %d\n", log_num_vlan);
1254 return -1;
1255 }
1256
1257 return 0;
1258 }
1259
mlx4_init(void)1260 static int __init mlx4_init(void)
1261 {
1262 int ret;
1263
1264 if (mlx4_verify_params())
1265 return -EINVAL;
1266
1267 ret = mlx4_catas_init();
1268 if (ret)
1269 return ret;
1270
1271 ret = pci_register_driver(&mlx4_driver);
1272 return ret < 0 ? ret : 0;
1273 }
1274
mlx4_cleanup(void)1275 static void __exit mlx4_cleanup(void)
1276 {
1277 pci_unregister_driver(&mlx4_driver);
1278 mlx4_catas_cleanup();
1279 }
1280
1281 module_init(mlx4_init);
1282 module_exit(mlx4_cleanup);
1283