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mlx4: Paravirtualize Node Guids for slaves
[linux-2.6.git] / drivers / net / ethernet / mellanox / mlx4 / main.c
blob76f69fdd01d5930cb207beb88bc5a9b96528fa63
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 #include <linux/slab.h>
42 #include <linux/io-mapping.h>
43 #include <linux/delay.h>
44 #include <linux/netdevice.h>
45
46 #include <linux/mlx4/device.h>
47 #include <linux/mlx4/doorbell.h>
48
49 #include "mlx4.h"
50 #include "fw.h"
51 #include "icm.h"
52
53 MODULE_AUTHOR("Roland Dreier");
54 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
55 MODULE_LICENSE("Dual BSD/GPL");
56 MODULE_VERSION(DRV_VERSION);
57
58 struct workqueue_struct *mlx4_wq;
59
60 #ifdef CONFIG_MLX4_DEBUG
61
62 int mlx4_debug_level = 0;
63 module_param_named(debug_level, mlx4_debug_level, int, 0644);
64 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
65
66 #endif /* CONFIG_MLX4_DEBUG */
67
68 #ifdef CONFIG_PCI_MSI
69
70 static int msi_x = 1;
71 module_param(msi_x, int, 0444);
72 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
73
74 #else /* CONFIG_PCI_MSI */
75
76 #define msi_x (0)
77
78 #endif /* CONFIG_PCI_MSI */
79
80 static int num_vfs;
81 module_param(num_vfs, int, 0444);
82 MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0");
83
84 static int probe_vf;
85 module_param(probe_vf, int, 0644);
86 MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)");
87
88 int mlx4_log_num_mgm_entry_size = 10;
89 module_param_named(log_num_mgm_entry_size,
90 mlx4_log_num_mgm_entry_size, int, 0444);
91 MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
92 " of qp per mcg, for example:"
93 " 10 gives 248.range: 9<="
94 " log_num_mgm_entry_size <= 12."
95 " Not in use with device managed"
96 " flow steering");
97
98 #define MLX4_VF (1 << 0)
99
100 #define HCA_GLOBAL_CAP_MASK 0
101 #define PF_CONTEXT_BEHAVIOUR_MASK 0
102
103 static char mlx4_version[] __devinitdata =
104 DRV_NAME ": Mellanox ConnectX core driver v"
105 DRV_VERSION " (" DRV_RELDATE ")\n";
106
107 static struct mlx4_profile default_profile = {
108 .num_qp = 1 << 18,
109 .num_srq = 1 << 16,
110 .rdmarc_per_qp = 1 << 4,
111 .num_cq = 1 << 16,
112 .num_mcg = 1 << 13,
113 .num_mpt = 1 << 19,
114 .num_mtt = 1 << 20, /* It is really num mtt segements */
115 };
116
117 static int log_num_mac = 7;
118 module_param_named(log_num_mac, log_num_mac, int, 0444);
119 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
120
121 static int log_num_vlan;
122 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
123 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
124 /* Log2 max number of VLANs per ETH port (0-7) */
125 #define MLX4_LOG_NUM_VLANS 7
126
127 static bool use_prio;
128 module_param_named(use_prio, use_prio, bool, 0444);
129 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
130 "(0/1, default 0)");
131
132 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
133 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
134 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
135
136 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
137 static int arr_argc = 2;
138 module_param_array(port_type_array, int, &arr_argc, 0444);
139 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
140 "1 for IB, 2 for Ethernet");
141
142 struct mlx4_port_config {
143 struct list_head list;
144 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
145 struct pci_dev *pdev;
146 };
147
148 int mlx4_check_port_params(struct mlx4_dev *dev,
149 enum mlx4_port_type *port_type)
150 {
151 int i;
152
153 for (i = 0; i < dev->caps.num_ports - 1; i++) {
154 if (port_type[i] != port_type[i + 1]) {
155 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
156 mlx4_err(dev, "Only same port types supported "
157 "on this HCA, aborting.\n");
158 return -EINVAL;
159 }
160 }
161 }
162
163 for (i = 0; i < dev->caps.num_ports; i++) {
164 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
165 mlx4_err(dev, "Requested port type for port %d is not "
166 "supported on this HCA\n", i + 1);
167 return -EINVAL;
168 }
169 }
170 return 0;
171 }
172
173 static void mlx4_set_port_mask(struct mlx4_dev *dev)
174 {
175 int i;
176
177 for (i = 1; i <= dev->caps.num_ports; ++i)
178 dev->caps.port_mask[i] = dev->caps.port_type[i];
179 }
180
181 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
182 {
183 int err;
184 int i;
185
186 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
187 if (err) {
188 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
189 return err;
190 }
191
192 if (dev_cap->min_page_sz > PAGE_SIZE) {
193 mlx4_err(dev, "HCA minimum page size of %d bigger than "
194 "kernel PAGE_SIZE of %ld, aborting.\n",
195 dev_cap->min_page_sz, PAGE_SIZE);
196 return -ENODEV;
197 }
198 if (dev_cap->num_ports > MLX4_MAX_PORTS) {
199 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
200 "aborting.\n",
201 dev_cap->num_ports, MLX4_MAX_PORTS);
202 return -ENODEV;
203 }
204
205 if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
206 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
207 "PCI resource 2 size of 0x%llx, aborting.\n",
208 dev_cap->uar_size,
209 (unsigned long long) pci_resource_len(dev->pdev, 2));
210 return -ENODEV;
211 }
212
213 dev->caps.num_ports = dev_cap->num_ports;
214 dev->phys_caps.num_phys_eqs = MLX4_MAX_EQ_NUM;
215 for (i = 1; i <= dev->caps.num_ports; ++i) {
216 dev->caps.vl_cap[i] = dev_cap->max_vl[i];
217 dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
218 dev->phys_caps.gid_phys_table_len[i] = dev_cap->max_gids[i];
219 dev->phys_caps.pkey_phys_table_len[i] = dev_cap->max_pkeys[i];
220 /* set gid and pkey table operating lengths by default
221 * to non-sriov values */
222 dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
223 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
224 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
225 dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
226 dev->caps.def_mac[i] = dev_cap->def_mac[i];
227 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
228 dev->caps.suggested_type[i] = dev_cap->suggested_type[i];
229 dev->caps.default_sense[i] = dev_cap->default_sense[i];
230 dev->caps.trans_type[i] = dev_cap->trans_type[i];
231 dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
232 dev->caps.wavelength[i] = dev_cap->wavelength[i];
233 dev->caps.trans_code[i] = dev_cap->trans_code[i];
234 }
235
236 dev->caps.uar_page_size = PAGE_SIZE;
237 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
238 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
239 dev->caps.bf_reg_size = dev_cap->bf_reg_size;
240 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
241 dev->caps.max_sq_sg = dev_cap->max_sq_sg;
242 dev->caps.max_rq_sg = dev_cap->max_rq_sg;
243 dev->caps.max_wqes = dev_cap->max_qp_sz;
244 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
245 dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
246 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
247 dev->caps.reserved_srqs = dev_cap->reserved_srqs;
248 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
249 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
250 /*
251 * Subtract 1 from the limit because we need to allocate a
252 * spare CQE so the HCA HW can tell the difference between an
253 * empty CQ and a full CQ.
254 */
255 dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
256 dev->caps.reserved_cqs = dev_cap->reserved_cqs;
257 dev->caps.reserved_eqs = dev_cap->reserved_eqs;
258 dev->caps.reserved_mtts = dev_cap->reserved_mtts;
259 dev->caps.reserved_mrws = dev_cap->reserved_mrws;
260
261 /* The first 128 UARs are used for EQ doorbells */
262 dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
263 dev->caps.reserved_pds = dev_cap->reserved_pds;
264 dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
265 dev_cap->reserved_xrcds : 0;
266 dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
267 dev_cap->max_xrcds : 0;
268 dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
269
270 dev->caps.max_msg_sz = dev_cap->max_msg_sz;
271 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
272 dev->caps.flags = dev_cap->flags;
273 dev->caps.flags2 = dev_cap->flags2;
274 dev->caps.bmme_flags = dev_cap->bmme_flags;
275 dev->caps.reserved_lkey = dev_cap->reserved_lkey;
276 dev->caps.stat_rate_support = dev_cap->stat_rate_support;
277 dev->caps.max_gso_sz = dev_cap->max_gso_sz;
278 dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz;
279
280 if (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) {
281 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
282 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
283 dev->caps.fs_log_max_ucast_qp_range_size =
284 dev_cap->fs_log_max_ucast_qp_range_size;
285 } else {
286 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
287 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) {
288 dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
289 } else {
290 dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
291
292 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
293 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
294 mlx4_warn(dev, "Must have UC_STEER and MC_STEER flags "
295 "set to use B0 steering. Falling back to A0 steering mode.\n");
296 }
297 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
298 }
299 mlx4_dbg(dev, "Steering mode is: %s\n",
300 mlx4_steering_mode_str(dev->caps.steering_mode));
301
302 /* Sense port always allowed on supported devices for ConnectX1 and 2 */
303 if (dev->pdev->device != 0x1003)
304 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
305
306 dev->caps.log_num_macs = log_num_mac;
307 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
308 dev->caps.log_num_prios = use_prio ? 3 : 0;
309
310 for (i = 1; i <= dev->caps.num_ports; ++i) {
311 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
312 if (dev->caps.supported_type[i]) {
313 /* if only ETH is supported - assign ETH */
314 if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
315 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
316 /* if only IB is supported, assign IB */
317 else if (dev->caps.supported_type[i] ==
318 MLX4_PORT_TYPE_IB)
319 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
320 else {
321 /* if IB and ETH are supported, we set the port
322 * type according to user selection of port type;
323 * if user selected none, take the FW hint */
324 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
325 dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
326 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
327 else
328 dev->caps.port_type[i] = port_type_array[i - 1];
329 }
330 }
331 /*
332 * Link sensing is allowed on the port if 3 conditions are true:
333 * 1. Both protocols are supported on the port.
334 * 2. Different types are supported on the port
335 * 3. FW declared that it supports link sensing
336 */
337 mlx4_priv(dev)->sense.sense_allowed[i] =
338 ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
339 (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
340 (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
341
342 /*
343 * If "default_sense" bit is set, we move the port to "AUTO" mode
344 * and perform sense_port FW command to try and set the correct
345 * port type from beginning
346 */
347 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
348 enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
349 dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
350 mlx4_SENSE_PORT(dev, i, &sensed_port);
351 if (sensed_port != MLX4_PORT_TYPE_NONE)
352 dev->caps.port_type[i] = sensed_port;
353 } else {
354 dev->caps.possible_type[i] = dev->caps.port_type[i];
355 }
356
357 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
358 dev->caps.log_num_macs = dev_cap->log_max_macs[i];
359 mlx4_warn(dev, "Requested number of MACs is too much "
360 "for port %d, reducing to %d.\n",
361 i, 1 << dev->caps.log_num_macs);
362 }
363 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
364 dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
365 mlx4_warn(dev, "Requested number of VLANs is too much "
366 "for port %d, reducing to %d.\n",
367 i, 1 << dev->caps.log_num_vlans);
368 }
369 }
370
371 dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
372
373 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
374 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
375 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
376 (1 << dev->caps.log_num_macs) *
377 (1 << dev->caps.log_num_vlans) *
378 (1 << dev->caps.log_num_prios) *
379 dev->caps.num_ports;
380 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
381
382 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
383 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
384 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
385 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
386
387 dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
388 return 0;
389 }
390 /*The function checks if there are live vf, return the num of them*/
391 static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
392 {
393 struct mlx4_priv *priv = mlx4_priv(dev);
394 struct mlx4_slave_state *s_state;
395 int i;
396 int ret = 0;
397
398 for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
399 s_state = &priv->mfunc.master.slave_state[i];
400 if (s_state->active && s_state->last_cmd !=
401 MLX4_COMM_CMD_RESET) {
402 mlx4_warn(dev, "%s: slave: %d is still active\n",
403 __func__, i);
404 ret++;
405 }
406 }
407 return ret;
408 }
409
410 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
411 {
412 u32 qk = MLX4_RESERVED_QKEY_BASE;
413 if (qpn >= dev->caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
414 qpn < dev->caps.sqp_start)
415 return -EINVAL;
416
417 if (qpn >= dev->caps.base_tunnel_sqpn)
418 /* tunnel qp */
419 qk += qpn - dev->caps.base_tunnel_sqpn;
420 else
421 qk += qpn - dev->caps.sqp_start;
422 *qkey = qk;
423 return 0;
424 }
425 EXPORT_SYMBOL(mlx4_get_parav_qkey);
426
427 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
428 {
429 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
430
431 if (!mlx4_is_master(dev))
432 return;
433
434 priv->virt2phys_pkey[slave][port - 1][i] = val;
435 }
436 EXPORT_SYMBOL(mlx4_sync_pkey_table);
437
438 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
439 {
440 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
441
442 if (!mlx4_is_master(dev))
443 return;
444
445 priv->slave_node_guids[slave] = guid;
446 }
447 EXPORT_SYMBOL(mlx4_put_slave_node_guid);
448
449 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
450 {
451 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
452
453 if (!mlx4_is_master(dev))
454 return 0;
455
456 return priv->slave_node_guids[slave];
457 }
458 EXPORT_SYMBOL(mlx4_get_slave_node_guid);
459
460 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
461 {
462 struct mlx4_priv *priv = mlx4_priv(dev);
463 struct mlx4_slave_state *s_slave;
464
465 if (!mlx4_is_master(dev))
466 return 0;
467
468 s_slave = &priv->mfunc.master.slave_state[slave];
469 return !!s_slave->active;
470 }
471 EXPORT_SYMBOL(mlx4_is_slave_active);
472
473 static int mlx4_slave_cap(struct mlx4_dev *dev)
474 {
475 int err;
476 u32 page_size;
477 struct mlx4_dev_cap dev_cap;
478 struct mlx4_func_cap func_cap;
479 struct mlx4_init_hca_param hca_param;
480 int i;
481
482 memset(&hca_param, 0, sizeof(hca_param));
483 err = mlx4_QUERY_HCA(dev, &hca_param);
484 if (err) {
485 mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
486 return err;
487 }
488
489 /*fail if the hca has an unknown capability */
490 if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
491 HCA_GLOBAL_CAP_MASK) {
492 mlx4_err(dev, "Unknown hca global capabilities\n");
493 return -ENOSYS;
494 }
495
496 mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
497
498 memset(&dev_cap, 0, sizeof(dev_cap));
499 dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
500 err = mlx4_dev_cap(dev, &dev_cap);
501 if (err) {
502 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
503 return err;
504 }
505
506 err = mlx4_QUERY_FW(dev);
507 if (err)
508 mlx4_err(dev, "QUERY_FW command failed: could not get FW version.\n");
509
510 page_size = ~dev->caps.page_size_cap + 1;
511 mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
512 if (page_size > PAGE_SIZE) {
513 mlx4_err(dev, "HCA minimum page size of %d bigger than "
514 "kernel PAGE_SIZE of %ld, aborting.\n",
515 page_size, PAGE_SIZE);
516 return -ENODEV;
517 }
518
519 /* slave gets uar page size from QUERY_HCA fw command */
520 dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
521
522 /* TODO: relax this assumption */
523 if (dev->caps.uar_page_size != PAGE_SIZE) {
524 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
525 dev->caps.uar_page_size, PAGE_SIZE);
526 return -ENODEV;
527 }
528
529 memset(&func_cap, 0, sizeof(func_cap));
530 err = mlx4_QUERY_FUNC_CAP(dev, &func_cap);
531 if (err) {
532 mlx4_err(dev, "QUERY_FUNC_CAP command failed, aborting.\n");
533 return err;
534 }
535
536 if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
537 PF_CONTEXT_BEHAVIOUR_MASK) {
538 mlx4_err(dev, "Unknown pf context behaviour\n");
539 return -ENOSYS;
540 }
541
542 dev->caps.num_ports = func_cap.num_ports;
543 dev->caps.num_qps = func_cap.qp_quota;
544 dev->caps.num_srqs = func_cap.srq_quota;
545 dev->caps.num_cqs = func_cap.cq_quota;
546 dev->caps.num_eqs = func_cap.max_eq;
547 dev->caps.reserved_eqs = func_cap.reserved_eq;
548 dev->caps.num_mpts = func_cap.mpt_quota;
549 dev->caps.num_mtts = func_cap.mtt_quota;
550 dev->caps.num_pds = MLX4_NUM_PDS;
551 dev->caps.num_mgms = 0;
552 dev->caps.num_amgms = 0;
553
554 if (dev->caps.num_ports > MLX4_MAX_PORTS) {
555 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
556 "aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
557 return -ENODEV;
558 }
559
560 for (i = 1; i <= dev->caps.num_ports; ++i) {
561 dev->caps.port_mask[i] = dev->caps.port_type[i];
562 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
563 &dev->caps.gid_table_len[i],
564 &dev->caps.pkey_table_len[i]))
565 return -ENODEV;
566 }
567
568 if (dev->caps.uar_page_size * (dev->caps.num_uars -
569 dev->caps.reserved_uars) >
570 pci_resource_len(dev->pdev, 2)) {
571 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
572 "PCI resource 2 size of 0x%llx, aborting.\n",
573 dev->caps.uar_page_size * dev->caps.num_uars,
574 (unsigned long long) pci_resource_len(dev->pdev, 2));
575 return -ENODEV;
576 }
577
578 /* Calculate our sqp_start */
579 dev->caps.sqp_start = func_cap.base_proxy_qpn;
580 dev->caps.base_tunnel_sqpn = func_cap.base_tunnel_qpn;
581
582 return 0;
583 }
584
585 /*
586 * Change the port configuration of the device.
587 * Every user of this function must hold the port mutex.
588 */
589 int mlx4_change_port_types(struct mlx4_dev *dev,
590 enum mlx4_port_type *port_types)
591 {
592 int err = 0;
593 int change = 0;
594 int port;
595
596 for (port = 0; port < dev->caps.num_ports; port++) {
597 /* Change the port type only if the new type is different
598 * from the current, and not set to Auto */
599 if (port_types[port] != dev->caps.port_type[port + 1])
600 change = 1;
601 }
602 if (change) {
603 mlx4_unregister_device(dev);
604 for (port = 1; port <= dev->caps.num_ports; port++) {
605 mlx4_CLOSE_PORT(dev, port);
606 dev->caps.port_type[port] = port_types[port - 1];
607 err = mlx4_SET_PORT(dev, port, -1);
608 if (err) {
609 mlx4_err(dev, "Failed to set port %d, "
610 "aborting\n", port);
611 goto out;
612 }
613 }
614 mlx4_set_port_mask(dev);
615 err = mlx4_register_device(dev);
616 }
617
618 out:
619 return err;
620 }
621
622 static ssize_t show_port_type(struct device *dev,
623 struct device_attribute *attr,
624 char *buf)
625 {
626 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
627 port_attr);
628 struct mlx4_dev *mdev = info->dev;
629 char type[8];
630
631 sprintf(type, "%s",
632 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
633 "ib" : "eth");
634 if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
635 sprintf(buf, "auto (%s)\n", type);
636 else
637 sprintf(buf, "%s\n", type);
638
639 return strlen(buf);
640 }
641
642 static ssize_t set_port_type(struct device *dev,
643 struct device_attribute *attr,
644 const char *buf, size_t count)
645 {
646 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
647 port_attr);
648 struct mlx4_dev *mdev = info->dev;
649 struct mlx4_priv *priv = mlx4_priv(mdev);
650 enum mlx4_port_type types[MLX4_MAX_PORTS];
651 enum mlx4_port_type new_types[MLX4_MAX_PORTS];
652 int i;
653 int err = 0;
654
655 if (!strcmp(buf, "ib\n"))
656 info->tmp_type = MLX4_PORT_TYPE_IB;
657 else if (!strcmp(buf, "eth\n"))
658 info->tmp_type = MLX4_PORT_TYPE_ETH;
659 else if (!strcmp(buf, "auto\n"))
660 info->tmp_type = MLX4_PORT_TYPE_AUTO;
661 else {
662 mlx4_err(mdev, "%s is not supported port type\n", buf);
663 return -EINVAL;
664 }
665
666 mlx4_stop_sense(mdev);
667 mutex_lock(&priv->port_mutex);
668 /* Possible type is always the one that was delivered */
669 mdev->caps.possible_type[info->port] = info->tmp_type;
670
671 for (i = 0; i < mdev->caps.num_ports; i++) {
672 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
673 mdev->caps.possible_type[i+1];
674 if (types[i] == MLX4_PORT_TYPE_AUTO)
675 types[i] = mdev->caps.port_type[i+1];
676 }
677
678 if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
679 !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
680 for (i = 1; i <= mdev->caps.num_ports; i++) {
681 if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
682 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
683 err = -EINVAL;
684 }
685 }
686 }
687 if (err) {
688 mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
689 "Set only 'eth' or 'ib' for both ports "
690 "(should be the same)\n");
691 goto out;
692 }
693
694 mlx4_do_sense_ports(mdev, new_types, types);
695
696 err = mlx4_check_port_params(mdev, new_types);
697 if (err)
698 goto out;
699
700 /* We are about to apply the changes after the configuration
701 * was verified, no need to remember the temporary types
702 * any more */
703 for (i = 0; i < mdev->caps.num_ports; i++)
704 priv->port[i + 1].tmp_type = 0;
705
706 err = mlx4_change_port_types(mdev, new_types);
707
708 out:
709 mlx4_start_sense(mdev);
710 mutex_unlock(&priv->port_mutex);
711 return err ? err : count;
712 }
713
714 enum ibta_mtu {
715 IB_MTU_256 = 1,
716 IB_MTU_512 = 2,
717 IB_MTU_1024 = 3,
718 IB_MTU_2048 = 4,
719 IB_MTU_4096 = 5
720 };
721
722 static inline int int_to_ibta_mtu(int mtu)
723 {
724 switch (mtu) {
725 case 256: return IB_MTU_256;
726 case 512: return IB_MTU_512;
727 case 1024: return IB_MTU_1024;
728 case 2048: return IB_MTU_2048;
729 case 4096: return IB_MTU_4096;
730 default: return -1;
731 }
732 }
733
734 static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
735 {
736 switch (mtu) {
737 case IB_MTU_256: return 256;
738 case IB_MTU_512: return 512;
739 case IB_MTU_1024: return 1024;
740 case IB_MTU_2048: return 2048;
741 case IB_MTU_4096: return 4096;
742 default: return -1;
743 }
744 }
745
746 static ssize_t show_port_ib_mtu(struct device *dev,
747 struct device_attribute *attr,
748 char *buf)
749 {
750 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
751 port_mtu_attr);
752 struct mlx4_dev *mdev = info->dev;
753
754 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
755 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
756
757 sprintf(buf, "%d\n",
758 ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
759 return strlen(buf);
760 }
761
762 static ssize_t set_port_ib_mtu(struct device *dev,
763 struct device_attribute *attr,
764 const char *buf, size_t count)
765 {
766 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
767 port_mtu_attr);
768 struct mlx4_dev *mdev = info->dev;
769 struct mlx4_priv *priv = mlx4_priv(mdev);
770 int err, port, mtu, ibta_mtu = -1;
771
772 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
773 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
774 return -EINVAL;
775 }
776
777 err = sscanf(buf, "%d", &mtu);
778 if (err > 0)
779 ibta_mtu = int_to_ibta_mtu(mtu);
780
781 if (err <= 0 || ibta_mtu < 0) {
782 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
783 return -EINVAL;
784 }
785
786 mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
787
788 mlx4_stop_sense(mdev);
789 mutex_lock(&priv->port_mutex);
790 mlx4_unregister_device(mdev);
791 for (port = 1; port <= mdev->caps.num_ports; port++) {
792 mlx4_CLOSE_PORT(mdev, port);
793 err = mlx4_SET_PORT(mdev, port, -1);
794 if (err) {
795 mlx4_err(mdev, "Failed to set port %d, "
796 "aborting\n", port);
797 goto err_set_port;
798 }
799 }
800 err = mlx4_register_device(mdev);
801 err_set_port:
802 mutex_unlock(&priv->port_mutex);
803 mlx4_start_sense(mdev);
804 return err ? err : count;
805 }
806
807 static int mlx4_load_fw(struct mlx4_dev *dev)
808 {
809 struct mlx4_priv *priv = mlx4_priv(dev);
810 int err;
811
812 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
813 GFP_HIGHUSER | __GFP_NOWARN, 0);
814 if (!priv->fw.fw_icm) {
815 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
816 return -ENOMEM;
817 }
818
819 err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
820 if (err) {
821 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
822 goto err_free;
823 }
824
825 err = mlx4_RUN_FW(dev);
826 if (err) {
827 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
828 goto err_unmap_fa;
829 }
830
831 return 0;
832
833 err_unmap_fa:
834 mlx4_UNMAP_FA(dev);
835
836 err_free:
837 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
838 return err;
839 }
840
841 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
842 int cmpt_entry_sz)
843 {
844 struct mlx4_priv *priv = mlx4_priv(dev);
845 int err;
846 int num_eqs;
847
848 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
849 cmpt_base +
850 ((u64) (MLX4_CMPT_TYPE_QP *
851 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
852 cmpt_entry_sz, dev->caps.num_qps,
853 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
854 0, 0);
855 if (err)
856 goto err;
857
858 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
859 cmpt_base +
860 ((u64) (MLX4_CMPT_TYPE_SRQ *
861 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
862 cmpt_entry_sz, dev->caps.num_srqs,
863 dev->caps.reserved_srqs, 0, 0);
864 if (err)
865 goto err_qp;
866
867 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
868 cmpt_base +
869 ((u64) (MLX4_CMPT_TYPE_CQ *
870 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
871 cmpt_entry_sz, dev->caps.num_cqs,
872 dev->caps.reserved_cqs, 0, 0);
873 if (err)
874 goto err_srq;
875
876 num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
877 dev->caps.num_eqs;
878 err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
879 cmpt_base +
880 ((u64) (MLX4_CMPT_TYPE_EQ *
881 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
882 cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
883 if (err)
884 goto err_cq;
885
886 return 0;
887
888 err_cq:
889 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
890
891 err_srq:
892 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
893
894 err_qp:
895 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
896
897 err:
898 return err;
899 }
900
901 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
902 struct mlx4_init_hca_param *init_hca, u64 icm_size)
903 {
904 struct mlx4_priv *priv = mlx4_priv(dev);
905 u64 aux_pages;
906 int num_eqs;
907 int err;
908
909 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
910 if (err) {
911 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
912 return err;
913 }
914
915 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
916 (unsigned long long) icm_size >> 10,
917 (unsigned long long) aux_pages << 2);
918
919 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
920 GFP_HIGHUSER | __GFP_NOWARN, 0);
921 if (!priv->fw.aux_icm) {
922 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
923 return -ENOMEM;
924 }
925
926 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
927 if (err) {
928 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
929 goto err_free_aux;
930 }
931
932 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
933 if (err) {
934 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
935 goto err_unmap_aux;
936 }
937
938
939 num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
940 dev->caps.num_eqs;
941 err = mlx4_init_icm_table(dev, &priv->eq_table.table,
942 init_hca->eqc_base, dev_cap->eqc_entry_sz,
943 num_eqs, num_eqs, 0, 0);
944 if (err) {
945 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
946 goto err_unmap_cmpt;
947 }
948
949 /*
950 * Reserved MTT entries must be aligned up to a cacheline
951 * boundary, since the FW will write to them, while the driver
952 * writes to all other MTT entries. (The variable
953 * dev->caps.mtt_entry_sz below is really the MTT segment
954 * size, not the raw entry size)
955 */
956 dev->caps.reserved_mtts =
957 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
958 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
959
960 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
961 init_hca->mtt_base,
962 dev->caps.mtt_entry_sz,
963 dev->caps.num_mtts,
964 dev->caps.reserved_mtts, 1, 0);
965 if (err) {
966 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
967 goto err_unmap_eq;
968 }
969
970 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
971 init_hca->dmpt_base,
972 dev_cap->dmpt_entry_sz,
973 dev->caps.num_mpts,
974 dev->caps.reserved_mrws, 1, 1);
975 if (err) {
976 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
977 goto err_unmap_mtt;
978 }
979
980 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
981 init_hca->qpc_base,
982 dev_cap->qpc_entry_sz,
983 dev->caps.num_qps,
984 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
985 0, 0);
986 if (err) {
987 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
988 goto err_unmap_dmpt;
989 }
990
991 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
992 init_hca->auxc_base,
993 dev_cap->aux_entry_sz,
994 dev->caps.num_qps,
995 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
996 0, 0);
997 if (err) {
998 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
999 goto err_unmap_qp;
1000 }
1001
1002 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1003 init_hca->altc_base,
1004 dev_cap->altc_entry_sz,
1005 dev->caps.num_qps,
1006 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1007 0, 0);
1008 if (err) {
1009 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
1010 goto err_unmap_auxc;
1011 }
1012
1013 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1014 init_hca->rdmarc_base,
1015 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1016 dev->caps.num_qps,
1017 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1018 0, 0);
1019 if (err) {
1020 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1021 goto err_unmap_altc;
1022 }
1023
1024 err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1025 init_hca->cqc_base,
1026 dev_cap->cqc_entry_sz,
1027 dev->caps.num_cqs,
1028 dev->caps.reserved_cqs, 0, 0);
1029 if (err) {
1030 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
1031 goto err_unmap_rdmarc;
1032 }
1033
1034 err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1035 init_hca->srqc_base,
1036 dev_cap->srq_entry_sz,
1037 dev->caps.num_srqs,
1038 dev->caps.reserved_srqs, 0, 0);
1039 if (err) {
1040 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
1041 goto err_unmap_cq;
1042 }
1043
1044 /*
1045 * For flow steering device managed mode it is required to use
1046 * mlx4_init_icm_table. For B0 steering mode it's not strictly
1047 * required, but for simplicity just map the whole multicast
1048 * group table now. The table isn't very big and it's a lot
1049 * easier than trying to track ref counts.
1050 */
1051 err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
1052 init_hca->mc_base,
1053 mlx4_get_mgm_entry_size(dev),
1054 dev->caps.num_mgms + dev->caps.num_amgms,
1055 dev->caps.num_mgms + dev->caps.num_amgms,
1056 0, 0);
1057 if (err) {
1058 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
1059 goto err_unmap_srq;
1060 }
1061
1062 return 0;
1063
1064 err_unmap_srq:
1065 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1066
1067 err_unmap_cq:
1068 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1069
1070 err_unmap_rdmarc:
1071 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1072
1073 err_unmap_altc:
1074 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1075
1076 err_unmap_auxc:
1077 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1078
1079 err_unmap_qp:
1080 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1081
1082 err_unmap_dmpt:
1083 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1084
1085 err_unmap_mtt:
1086 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1087
1088 err_unmap_eq:
1089 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1090
1091 err_unmap_cmpt:
1092 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1093 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1094 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1095 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1096
1097 err_unmap_aux:
1098 mlx4_UNMAP_ICM_AUX(dev);
1099
1100 err_free_aux:
1101 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1102
1103 return err;
1104 }
1105
1106 static void mlx4_free_icms(struct mlx4_dev *dev)
1107 {
1108 struct mlx4_priv *priv = mlx4_priv(dev);
1109
1110 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1111 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1112 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1113 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1114 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1115 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1116 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1117 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1118 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1119 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1120 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1121 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1122 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1123 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1124
1125 mlx4_UNMAP_ICM_AUX(dev);
1126 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1127 }
1128
1129 static void mlx4_slave_exit(struct mlx4_dev *dev)
1130 {
1131 struct mlx4_priv *priv = mlx4_priv(dev);
1132
1133 down(&priv->cmd.slave_sem);
1134 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
1135 mlx4_warn(dev, "Failed to close slave function.\n");
1136 up(&priv->cmd.slave_sem);
1137 }
1138
1139 static int map_bf_area(struct mlx4_dev *dev)
1140 {
1141 struct mlx4_priv *priv = mlx4_priv(dev);
1142 resource_size_t bf_start;
1143 resource_size_t bf_len;
1144 int err = 0;
1145
1146 if (!dev->caps.bf_reg_size)
1147 return -ENXIO;
1148
1149 bf_start = pci_resource_start(dev->pdev, 2) +
1150 (dev->caps.num_uars << PAGE_SHIFT);
1151 bf_len = pci_resource_len(dev->pdev, 2) -
1152 (dev->caps.num_uars << PAGE_SHIFT);
1153 priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1154 if (!priv->bf_mapping)
1155 err = -ENOMEM;
1156
1157 return err;
1158 }
1159
1160 static void unmap_bf_area(struct mlx4_dev *dev)
1161 {
1162 if (mlx4_priv(dev)->bf_mapping)
1163 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1164 }
1165
1166 static void mlx4_close_hca(struct mlx4_dev *dev)
1167 {
1168 unmap_bf_area(dev);
1169 if (mlx4_is_slave(dev))
1170 mlx4_slave_exit(dev);
1171 else {
1172 mlx4_CLOSE_HCA(dev, 0);
1173 mlx4_free_icms(dev);
1174 mlx4_UNMAP_FA(dev);
1175 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1176 }
1177 }
1178
1179 static int mlx4_init_slave(struct mlx4_dev *dev)
1180 {
1181 struct mlx4_priv *priv = mlx4_priv(dev);
1182 u64 dma = (u64) priv->mfunc.vhcr_dma;
1183 int num_of_reset_retries = NUM_OF_RESET_RETRIES;
1184 int ret_from_reset = 0;
1185 u32 slave_read;
1186 u32 cmd_channel_ver;
1187
1188 down(&priv->cmd.slave_sem);
1189 priv->cmd.max_cmds = 1;
1190 mlx4_warn(dev, "Sending reset\n");
1191 ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
1192 MLX4_COMM_TIME);
1193 /* if we are in the middle of flr the slave will try
1194 * NUM_OF_RESET_RETRIES times before leaving.*/
1195 if (ret_from_reset) {
1196 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
1197 msleep(SLEEP_TIME_IN_RESET);
1198 while (ret_from_reset && num_of_reset_retries) {
1199 mlx4_warn(dev, "slave is currently in the"
1200 "middle of FLR. retrying..."
1201 "(try num:%d)\n",
1202 (NUM_OF_RESET_RETRIES -
1203 num_of_reset_retries + 1));
1204 ret_from_reset =
1205 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET,
1206 0, MLX4_COMM_TIME);
1207 num_of_reset_retries = num_of_reset_retries - 1;
1208 }
1209 } else
1210 goto err;
1211 }
1212
1213 /* check the driver version - the slave I/F revision
1214 * must match the master's */
1215 slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
1216 cmd_channel_ver = mlx4_comm_get_version();
1217
1218 if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
1219 MLX4_COMM_GET_IF_REV(slave_read)) {
1220 mlx4_err(dev, "slave driver version is not supported"
1221 " by the master\n");
1222 goto err;
1223 }
1224
1225 mlx4_warn(dev, "Sending vhcr0\n");
1226 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
1227 MLX4_COMM_TIME))
1228 goto err;
1229 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
1230 MLX4_COMM_TIME))
1231 goto err;
1232 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
1233 MLX4_COMM_TIME))
1234 goto err;
1235 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
1236 goto err;
1237 up(&priv->cmd.slave_sem);
1238 return 0;
1239
1240 err:
1241 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
1242 up(&priv->cmd.slave_sem);
1243 return -EIO;
1244 }
1245
1246 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
1247 {
1248 int i;
1249
1250 for (i = 1; i <= dev->caps.num_ports; i++) {
1251 dev->caps.gid_table_len[i] = 1;
1252 dev->caps.pkey_table_len[i] =
1253 dev->phys_caps.pkey_phys_table_len[i] - 1;
1254 }
1255 }
1256
1257 static int mlx4_init_hca(struct mlx4_dev *dev)
1258 {
1259 struct mlx4_priv *priv = mlx4_priv(dev);
1260 struct mlx4_adapter adapter;
1261 struct mlx4_dev_cap dev_cap;
1262 struct mlx4_mod_stat_cfg mlx4_cfg;
1263 struct mlx4_profile profile;
1264 struct mlx4_init_hca_param init_hca;
1265 u64 icm_size;
1266 int err;
1267
1268 if (!mlx4_is_slave(dev)) {
1269 err = mlx4_QUERY_FW(dev);
1270 if (err) {
1271 if (err == -EACCES)
1272 mlx4_info(dev, "non-primary physical function, skipping.\n");
1273 else
1274 mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
1275 return err;
1276 }
1277
1278 err = mlx4_load_fw(dev);
1279 if (err) {
1280 mlx4_err(dev, "Failed to start FW, aborting.\n");
1281 return err;
1282 }
1283
1284 mlx4_cfg.log_pg_sz_m = 1;
1285 mlx4_cfg.log_pg_sz = 0;
1286 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
1287 if (err)
1288 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
1289
1290 err = mlx4_dev_cap(dev, &dev_cap);
1291 if (err) {
1292 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
1293 goto err_stop_fw;
1294 }
1295
1296 if (mlx4_is_master(dev))
1297 mlx4_parav_master_pf_caps(dev);
1298
1299 priv->fs_hash_mode = MLX4_FS_L2_HASH;
1300
1301 switch (priv->fs_hash_mode) {
1302 case MLX4_FS_L2_HASH:
1303 init_hca.fs_hash_enable_bits = 0;
1304 break;
1305
1306 case MLX4_FS_L2_L3_L4_HASH:
1307 /* Enable flow steering with
1308 * udp unicast and tcp unicast
1309 */
1310 init_hca.fs_hash_enable_bits =
1311 MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN;
1312 break;
1313 }
1314
1315 profile = default_profile;
1316 if (dev->caps.steering_mode ==
1317 MLX4_STEERING_MODE_DEVICE_MANAGED)
1318 profile.num_mcg = MLX4_FS_NUM_MCG;
1319
1320 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
1321 &init_hca);
1322 if ((long long) icm_size < 0) {
1323 err = icm_size;
1324 goto err_stop_fw;
1325 }
1326
1327 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
1328
1329 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
1330 init_hca.uar_page_sz = PAGE_SHIFT - 12;
1331
1332 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
1333 if (err)
1334 goto err_stop_fw;
1335
1336 err = mlx4_INIT_HCA(dev, &init_hca);
1337 if (err) {
1338 mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
1339 goto err_free_icm;
1340 }
1341 } else {
1342 err = mlx4_init_slave(dev);
1343 if (err) {
1344 mlx4_err(dev, "Failed to initialize slave\n");
1345 return err;
1346 }
1347
1348 err = mlx4_slave_cap(dev);
1349 if (err) {
1350 mlx4_err(dev, "Failed to obtain slave caps\n");
1351 goto err_close;
1352 }
1353 }
1354
1355 if (map_bf_area(dev))
1356 mlx4_dbg(dev, "Failed to map blue flame area\n");
1357
1358 /*Only the master set the ports, all the rest got it from it.*/
1359 if (!mlx4_is_slave(dev))
1360 mlx4_set_port_mask(dev);
1361
1362 err = mlx4_QUERY_ADAPTER(dev, &adapter);
1363 if (err) {
1364 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
1365 goto unmap_bf;
1366 }
1367
1368 priv->eq_table.inta_pin = adapter.inta_pin;
1369 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
1370
1371 return 0;
1372
1373 unmap_bf:
1374 unmap_bf_area(dev);
1375
1376 err_close:
1377 mlx4_close_hca(dev);
1378
1379 err_free_icm:
1380 if (!mlx4_is_slave(dev))
1381 mlx4_free_icms(dev);
1382
1383 err_stop_fw:
1384 if (!mlx4_is_slave(dev)) {
1385 mlx4_UNMAP_FA(dev);
1386 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1387 }
1388 return err;
1389 }
1390
1391 static int mlx4_init_counters_table(struct mlx4_dev *dev)
1392 {
1393 struct mlx4_priv *priv = mlx4_priv(dev);
1394 int nent;
1395
1396 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1397 return -ENOENT;
1398
1399 nent = dev->caps.max_counters;
1400 return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
1401 }
1402
1403 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
1404 {
1405 mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
1406 }
1407
1408 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1409 {
1410 struct mlx4_priv *priv = mlx4_priv(dev);
1411
1412 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1413 return -ENOENT;
1414
1415 *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
1416 if (*idx == -1)
1417 return -ENOMEM;
1418
1419 return 0;
1420 }
1421
1422 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1423 {
1424 u64 out_param;
1425 int err;
1426
1427 if (mlx4_is_mfunc(dev)) {
1428 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
1429 RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
1430 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
1431 if (!err)
1432 *idx = get_param_l(&out_param);
1433
1434 return err;
1435 }
1436 return __mlx4_counter_alloc(dev, idx);
1437 }
1438 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
1439
1440 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1441 {
1442 mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
1443 return;
1444 }
1445
1446 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1447 {
1448 u64 in_param;
1449
1450 if (mlx4_is_mfunc(dev)) {
1451 set_param_l(&in_param, idx);
1452 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
1453 MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
1454 MLX4_CMD_WRAPPED);
1455 return;
1456 }
1457 __mlx4_counter_free(dev, idx);
1458 }
1459 EXPORT_SYMBOL_GPL(mlx4_counter_free);
1460
1461 static int mlx4_setup_hca(struct mlx4_dev *dev)
1462 {
1463 struct mlx4_priv *priv = mlx4_priv(dev);
1464 int err;
1465 int port;
1466 __be32 ib_port_default_caps;
1467
1468 err = mlx4_init_uar_table(dev);
1469 if (err) {
1470 mlx4_err(dev, "Failed to initialize "
1471 "user access region table, aborting.\n");
1472 return err;
1473 }
1474
1475 err = mlx4_uar_alloc(dev, &priv->driver_uar);
1476 if (err) {
1477 mlx4_err(dev, "Failed to allocate driver access region, "
1478 "aborting.\n");
1479 goto err_uar_table_free;
1480 }
1481
1482 priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
1483 if (!priv->kar) {
1484 mlx4_err(dev, "Couldn't map kernel access region, "
1485 "aborting.\n");
1486 err = -ENOMEM;
1487 goto err_uar_free;
1488 }
1489
1490 err = mlx4_init_pd_table(dev);
1491 if (err) {
1492 mlx4_err(dev, "Failed to initialize "
1493 "protection domain table, aborting.\n");
1494 goto err_kar_unmap;
1495 }
1496
1497 err = mlx4_init_xrcd_table(dev);
1498 if (err) {
1499 mlx4_err(dev, "Failed to initialize "
1500 "reliable connection domain table, aborting.\n");
1501 goto err_pd_table_free;
1502 }
1503
1504 err = mlx4_init_mr_table(dev);
1505 if (err) {
1506 mlx4_err(dev, "Failed to initialize "
1507 "memory region table, aborting.\n");
1508 goto err_xrcd_table_free;
1509 }
1510
1511 err = mlx4_init_eq_table(dev);
1512 if (err) {
1513 mlx4_err(dev, "Failed to initialize "
1514 "event queue table, aborting.\n");
1515 goto err_mr_table_free;
1516 }
1517
1518 err = mlx4_cmd_use_events(dev);
1519 if (err) {
1520 mlx4_err(dev, "Failed to switch to event-driven "
1521 "firmware commands, aborting.\n");
1522 goto err_eq_table_free;
1523 }
1524
1525 err = mlx4_NOP(dev);
1526 if (err) {
1527 if (dev->flags & MLX4_FLAG_MSI_X) {
1528 mlx4_warn(dev, "NOP command failed to generate MSI-X "
1529 "interrupt IRQ %d).\n",
1530 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
1531 mlx4_warn(dev, "Trying again without MSI-X.\n");
1532 } else {
1533 mlx4_err(dev, "NOP command failed to generate interrupt "
1534 "(IRQ %d), aborting.\n",
1535 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
1536 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
1537 }
1538
1539 goto err_cmd_poll;
1540 }
1541
1542 mlx4_dbg(dev, "NOP command IRQ test passed\n");
1543
1544 err = mlx4_init_cq_table(dev);
1545 if (err) {
1546 mlx4_err(dev, "Failed to initialize "
1547 "completion queue table, aborting.\n");
1548 goto err_cmd_poll;
1549 }
1550
1551 err = mlx4_init_srq_table(dev);
1552 if (err) {
1553 mlx4_err(dev, "Failed to initialize "
1554 "shared receive queue table, aborting.\n");
1555 goto err_cq_table_free;
1556 }
1557
1558 err = mlx4_init_qp_table(dev);
1559 if (err) {
1560 mlx4_err(dev, "Failed to initialize "
1561 "queue pair table, aborting.\n");
1562 goto err_srq_table_free;
1563 }
1564
1565 if (!mlx4_is_slave(dev)) {
1566 err = mlx4_init_mcg_table(dev);
1567 if (err) {
1568 mlx4_err(dev, "Failed to initialize "
1569 "multicast group table, aborting.\n");
1570 goto err_qp_table_free;
1571 }
1572 }
1573
1574 err = mlx4_init_counters_table(dev);
1575 if (err && err != -ENOENT) {
1576 mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
1577 goto err_mcg_table_free;
1578 }
1579
1580 if (!mlx4_is_slave(dev)) {
1581 for (port = 1; port <= dev->caps.num_ports; port++) {
1582 ib_port_default_caps = 0;
1583 err = mlx4_get_port_ib_caps(dev, port,
1584 &ib_port_default_caps);
1585 if (err)
1586 mlx4_warn(dev, "failed to get port %d default "
1587 "ib capabilities (%d). Continuing "
1588 "with caps = 0\n", port, err);
1589 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
1590
1591 /* initialize per-slave default ib port capabilities */
1592 if (mlx4_is_master(dev)) {
1593 int i;
1594 for (i = 0; i < dev->num_slaves; i++) {
1595 if (i == mlx4_master_func_num(dev))
1596 continue;
1597 priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
1598 ib_port_default_caps;
1599 }
1600 }
1601
1602 if (mlx4_is_mfunc(dev))
1603 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
1604 else
1605 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
1606
1607 err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
1608 dev->caps.pkey_table_len[port] : -1);
1609 if (err) {
1610 mlx4_err(dev, "Failed to set port %d, aborting\n",
1611 port);
1612 goto err_counters_table_free;
1613 }
1614 }
1615 }
1616
1617 return 0;
1618
1619 err_counters_table_free:
1620 mlx4_cleanup_counters_table(dev);
1621
1622 err_mcg_table_free:
1623 mlx4_cleanup_mcg_table(dev);
1624
1625 err_qp_table_free:
1626 mlx4_cleanup_qp_table(dev);
1627
1628 err_srq_table_free:
1629 mlx4_cleanup_srq_table(dev);
1630
1631 err_cq_table_free:
1632 mlx4_cleanup_cq_table(dev);
1633
1634 err_cmd_poll:
1635 mlx4_cmd_use_polling(dev);
1636
1637 err_eq_table_free:
1638 mlx4_cleanup_eq_table(dev);
1639
1640 err_mr_table_free:
1641 mlx4_cleanup_mr_table(dev);
1642
1643 err_xrcd_table_free:
1644 mlx4_cleanup_xrcd_table(dev);
1645
1646 err_pd_table_free:
1647 mlx4_cleanup_pd_table(dev);
1648
1649 err_kar_unmap:
1650 iounmap(priv->kar);
1651
1652 err_uar_free:
1653 mlx4_uar_free(dev, &priv->driver_uar);
1654
1655 err_uar_table_free:
1656 mlx4_cleanup_uar_table(dev);
1657 return err;
1658 }
1659
1660 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
1661 {
1662 struct mlx4_priv *priv = mlx4_priv(dev);
1663 struct msix_entry *entries;
1664 int nreq = min_t(int, dev->caps.num_ports *
1665 min_t(int, netif_get_num_default_rss_queues() + 1,
1666 MAX_MSIX_P_PORT) + MSIX_LEGACY_SZ, MAX_MSIX);
1667 int err;
1668 int i;
1669
1670 if (msi_x) {
1671 /* In multifunction mode each function gets 2 msi-X vectors
1672 * one for data path completions anf the other for asynch events
1673 * or command completions */
1674 if (mlx4_is_mfunc(dev)) {
1675 nreq = 2;
1676 } else {
1677 nreq = min_t(int, dev->caps.num_eqs -
1678 dev->caps.reserved_eqs, nreq);
1679 }
1680
1681 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
1682 if (!entries)
1683 goto no_msi;
1684
1685 for (i = 0; i < nreq; ++i)
1686 entries[i].entry = i;
1687
1688 retry:
1689 err = pci_enable_msix(dev->pdev, entries, nreq);
1690 if (err) {
1691 /* Try again if at least 2 vectors are available */
1692 if (err > 1) {
1693 mlx4_info(dev, "Requested %d vectors, "
1694 "but only %d MSI-X vectors available, "
1695 "trying again\n", nreq, err);
1696 nreq = err;
1697 goto retry;
1698 }
1699 kfree(entries);
1700 goto no_msi;
1701 }
1702
1703 if (nreq <
1704 MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
1705 /*Working in legacy mode , all EQ's shared*/
1706 dev->caps.comp_pool = 0;
1707 dev->caps.num_comp_vectors = nreq - 1;
1708 } else {
1709 dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
1710 dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
1711 }
1712 for (i = 0; i < nreq; ++i)
1713 priv->eq_table.eq[i].irq = entries[i].vector;
1714
1715 dev->flags |= MLX4_FLAG_MSI_X;
1716
1717 kfree(entries);
1718 return;
1719 }
1720
1721 no_msi:
1722 dev->caps.num_comp_vectors = 1;
1723 dev->caps.comp_pool = 0;
1724
1725 for (i = 0; i < 2; ++i)
1726 priv->eq_table.eq[i].irq = dev->pdev->irq;
1727 }
1728
1729 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
1730 {
1731 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
1732 int err = 0;
1733
1734 info->dev = dev;
1735 info->port = port;
1736 if (!mlx4_is_slave(dev)) {
1737 INIT_RADIX_TREE(&info->mac_tree, GFP_KERNEL);
1738 mlx4_init_mac_table(dev, &info->mac_table);
1739 mlx4_init_vlan_table(dev, &info->vlan_table);
1740 info->base_qpn =
1741 dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
1742 (port - 1) * (1 << log_num_mac);
1743 }
1744
1745 sprintf(info->dev_name, "mlx4_port%d", port);
1746 info->port_attr.attr.name = info->dev_name;
1747 if (mlx4_is_mfunc(dev))
1748 info->port_attr.attr.mode = S_IRUGO;
1749 else {
1750 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
1751 info->port_attr.store = set_port_type;
1752 }
1753 info->port_attr.show = show_port_type;
1754 sysfs_attr_init(&info->port_attr.attr);
1755
1756 err = device_create_file(&dev->pdev->dev, &info->port_attr);
1757 if (err) {
1758 mlx4_err(dev, "Failed to create file for port %d\n", port);
1759 info->port = -1;
1760 }
1761
1762 sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
1763 info->port_mtu_attr.attr.name = info->dev_mtu_name;
1764 if (mlx4_is_mfunc(dev))
1765 info->port_mtu_attr.attr.mode = S_IRUGO;
1766 else {
1767 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
1768 info->port_mtu_attr.store = set_port_ib_mtu;
1769 }
1770 info->port_mtu_attr.show = show_port_ib_mtu;
1771 sysfs_attr_init(&info->port_mtu_attr.attr);
1772
1773 err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr);
1774 if (err) {
1775 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
1776 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1777 info->port = -1;
1778 }
1779
1780 return err;
1781 }
1782
1783 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
1784 {
1785 if (info->port < 0)
1786 return;
1787
1788 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1789 device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr);
1790 }
1791
1792 static int mlx4_init_steering(struct mlx4_dev *dev)
1793 {
1794 struct mlx4_priv *priv = mlx4_priv(dev);
1795 int num_entries = dev->caps.num_ports;
1796 int i, j;
1797
1798 priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
1799 if (!priv->steer)
1800 return -ENOMEM;
1801
1802 for (i = 0; i < num_entries; i++)
1803 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1804 INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
1805 INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
1806 }
1807 return 0;
1808 }
1809
1810 static void mlx4_clear_steering(struct mlx4_dev *dev)
1811 {
1812 struct mlx4_priv *priv = mlx4_priv(dev);
1813 struct mlx4_steer_index *entry, *tmp_entry;
1814 struct mlx4_promisc_qp *pqp, *tmp_pqp;
1815 int num_entries = dev->caps.num_ports;
1816 int i, j;
1817
1818 for (i = 0; i < num_entries; i++) {
1819 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1820 list_for_each_entry_safe(pqp, tmp_pqp,
1821 &priv->steer[i].promisc_qps[j],
1822 list) {
1823 list_del(&pqp->list);
1824 kfree(pqp);
1825 }
1826 list_for_each_entry_safe(entry, tmp_entry,
1827 &priv->steer[i].steer_entries[j],
1828 list) {
1829 list_del(&entry->list);
1830 list_for_each_entry_safe(pqp, tmp_pqp,
1831 &entry->duplicates,
1832 list) {
1833 list_del(&pqp->list);
1834 kfree(pqp);
1835 }
1836 kfree(entry);
1837 }
1838 }
1839 }
1840 kfree(priv->steer);
1841 }
1842
1843 static int extended_func_num(struct pci_dev *pdev)
1844 {
1845 return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
1846 }
1847
1848 #define MLX4_OWNER_BASE 0x8069c
1849 #define MLX4_OWNER_SIZE 4
1850
1851 static int mlx4_get_ownership(struct mlx4_dev *dev)
1852 {
1853 void __iomem *owner;
1854 u32 ret;
1855
1856 if (pci_channel_offline(dev->pdev))
1857 return -EIO;
1858
1859 owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1860 MLX4_OWNER_SIZE);
1861 if (!owner) {
1862 mlx4_err(dev, "Failed to obtain ownership bit\n");
1863 return -ENOMEM;
1864 }
1865
1866 ret = readl(owner);
1867 iounmap(owner);
1868 return (int) !!ret;
1869 }
1870
1871 static void mlx4_free_ownership(struct mlx4_dev *dev)
1872 {
1873 void __iomem *owner;
1874
1875 if (pci_channel_offline(dev->pdev))
1876 return;
1877
1878 owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1879 MLX4_OWNER_SIZE);
1880 if (!owner) {
1881 mlx4_err(dev, "Failed to obtain ownership bit\n");
1882 return;
1883 }
1884 writel(0, owner);
1885 msleep(1000);
1886 iounmap(owner);
1887 }
1888
1889 static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
1890 {
1891 struct mlx4_priv *priv;
1892 struct mlx4_dev *dev;
1893 int err;
1894 int port;
1895
1896 pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
1897
1898 err = pci_enable_device(pdev);
1899 if (err) {
1900 dev_err(&pdev->dev, "Cannot enable PCI device, "
1901 "aborting.\n");
1902 return err;
1903 }
1904 if (num_vfs > MLX4_MAX_NUM_VF) {
1905 printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
1906 num_vfs, MLX4_MAX_NUM_VF);
1907 return -EINVAL;
1908 }
1909 /*
1910 * Check for BARs.
1911 */
1912 if (((id == NULL) || !(id->driver_data & MLX4_VF)) &&
1913 !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1914 dev_err(&pdev->dev, "Missing DCS, aborting."
1915 "(id == 0X%p, id->driver_data: 0x%lx,"
1916 " pci_resource_flags(pdev, 0):0x%lx)\n", id,
1917 id ? id->driver_data : 0, pci_resource_flags(pdev, 0));
1918 err = -ENODEV;
1919 goto err_disable_pdev;
1920 }
1921 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1922 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1923 err = -ENODEV;
1924 goto err_disable_pdev;
1925 }
1926
1927 err = pci_request_regions(pdev, DRV_NAME);
1928 if (err) {
1929 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
1930 goto err_disable_pdev;
1931 }
1932
1933 pci_set_master(pdev);
1934
1935 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1936 if (err) {
1937 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1938 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1939 if (err) {
1940 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1941 goto err_release_regions;
1942 }
1943 }
1944 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1945 if (err) {
1946 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1947 "consistent PCI DMA mask.\n");
1948 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1949 if (err) {
1950 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1951 "aborting.\n");
1952 goto err_release_regions;
1953 }
1954 }
1955
1956 /* Allow large DMA segments, up to the firmware limit of 1 GB */
1957 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
1958
1959 priv = kzalloc(sizeof *priv, GFP_KERNEL);
1960 if (!priv) {
1961 dev_err(&pdev->dev, "Device struct alloc failed, "
1962 "aborting.\n");
1963 err = -ENOMEM;
1964 goto err_release_regions;
1965 }
1966
1967 dev = &priv->dev;
1968 dev->pdev = pdev;
1969 INIT_LIST_HEAD(&priv->ctx_list);
1970 spin_lock_init(&priv->ctx_lock);
1971
1972 mutex_init(&priv->port_mutex);
1973
1974 INIT_LIST_HEAD(&priv->pgdir_list);
1975 mutex_init(&priv->pgdir_mutex);
1976
1977 INIT_LIST_HEAD(&priv->bf_list);
1978 mutex_init(&priv->bf_mutex);
1979
1980 dev->rev_id = pdev->revision;
1981 /* Detect if this device is a virtual function */
1982 if (id && id->driver_data & MLX4_VF) {
1983 /* When acting as pf, we normally skip vfs unless explicitly
1984 * requested to probe them. */
1985 if (num_vfs && extended_func_num(pdev) > probe_vf) {
1986 mlx4_warn(dev, "Skipping virtual function:%d\n",
1987 extended_func_num(pdev));
1988 err = -ENODEV;
1989 goto err_free_dev;
1990 }
1991 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
1992 dev->flags |= MLX4_FLAG_SLAVE;
1993 } else {
1994 /* We reset the device and enable SRIOV only for physical
1995 * devices. Try to claim ownership on the device;
1996 * if already taken, skip -- do not allow multiple PFs */
1997 err = mlx4_get_ownership(dev);
1998 if (err) {
1999 if (err < 0)
2000 goto err_free_dev;
2001 else {
2002 mlx4_warn(dev, "Multiple PFs not yet supported."
2003 " Skipping PF.\n");
2004 err = -EINVAL;
2005 goto err_free_dev;
2006 }
2007 }
2008
2009 if (num_vfs) {
2010 mlx4_warn(dev, "Enabling sriov with:%d vfs\n", num_vfs);
2011 err = pci_enable_sriov(pdev, num_vfs);
2012 if (err) {
2013 mlx4_err(dev, "Failed to enable sriov,"
2014 "continuing without sriov enabled"
2015 " (err = %d).\n", err);
2016 err = 0;
2017 } else {
2018 mlx4_warn(dev, "Running in master mode\n");
2019 dev->flags |= MLX4_FLAG_SRIOV |
2020 MLX4_FLAG_MASTER;
2021 dev->num_vfs = num_vfs;
2022 }
2023 }
2024
2025 /*
2026 * Now reset the HCA before we touch the PCI capabilities or
2027 * attempt a firmware command, since a boot ROM may have left
2028 * the HCA in an undefined state.
2029 */
2030 err = mlx4_reset(dev);
2031 if (err) {
2032 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
2033 goto err_rel_own;
2034 }
2035 }
2036
2037 slave_start:
2038 err = mlx4_cmd_init(dev);
2039 if (err) {
2040 mlx4_err(dev, "Failed to init command interface, aborting.\n");
2041 goto err_sriov;
2042 }
2043
2044 /* In slave functions, the communication channel must be initialized
2045 * before posting commands. Also, init num_slaves before calling
2046 * mlx4_init_hca */
2047 if (mlx4_is_mfunc(dev)) {
2048 if (mlx4_is_master(dev))
2049 dev->num_slaves = MLX4_MAX_NUM_SLAVES;
2050 else {
2051 dev->num_slaves = 0;
2052 if (mlx4_multi_func_init(dev)) {
2053 mlx4_err(dev, "Failed to init slave mfunc"
2054 " interface, aborting.\n");
2055 goto err_cmd;
2056 }
2057 }
2058 }
2059
2060 err = mlx4_init_hca(dev);
2061 if (err) {
2062 if (err == -EACCES) {
2063 /* Not primary Physical function
2064 * Running in slave mode */
2065 mlx4_cmd_cleanup(dev);
2066 dev->flags |= MLX4_FLAG_SLAVE;
2067 dev->flags &= ~MLX4_FLAG_MASTER;
2068 goto slave_start;
2069 } else
2070 goto err_mfunc;
2071 }
2072
2073 /* In master functions, the communication channel must be initialized
2074 * after obtaining its address from fw */
2075 if (mlx4_is_master(dev)) {
2076 if (mlx4_multi_func_init(dev)) {
2077 mlx4_err(dev, "Failed to init master mfunc"
2078 "interface, aborting.\n");
2079 goto err_close;
2080 }
2081 }
2082
2083 err = mlx4_alloc_eq_table(dev);
2084 if (err)
2085 goto err_master_mfunc;
2086
2087 priv->msix_ctl.pool_bm = 0;
2088 mutex_init(&priv->msix_ctl.pool_lock);
2089
2090 mlx4_enable_msi_x(dev);
2091 if ((mlx4_is_mfunc(dev)) &&
2092 !(dev->flags & MLX4_FLAG_MSI_X)) {
2093 mlx4_err(dev, "INTx is not supported in multi-function mode."
2094 " aborting.\n");
2095 goto err_free_eq;
2096 }
2097
2098 if (!mlx4_is_slave(dev)) {
2099 err = mlx4_init_steering(dev);
2100 if (err)
2101 goto err_free_eq;
2102 }
2103
2104 err = mlx4_setup_hca(dev);
2105 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
2106 !mlx4_is_mfunc(dev)) {
2107 dev->flags &= ~MLX4_FLAG_MSI_X;
2108 dev->caps.num_comp_vectors = 1;
2109 dev->caps.comp_pool = 0;
2110 pci_disable_msix(pdev);
2111 err = mlx4_setup_hca(dev);
2112 }
2113
2114 if (err)
2115 goto err_steer;
2116
2117 for (port = 1; port <= dev->caps.num_ports; port++) {
2118 err = mlx4_init_port_info(dev, port);
2119 if (err)
2120 goto err_port;
2121 }
2122
2123 err = mlx4_register_device(dev);
2124 if (err)
2125 goto err_port;
2126
2127 mlx4_sense_init(dev);
2128 mlx4_start_sense(dev);
2129
2130 pci_set_drvdata(pdev, dev);
2131
2132 return 0;
2133
2134 err_port:
2135 for (--port; port >= 1; --port)
2136 mlx4_cleanup_port_info(&priv->port[port]);
2137
2138 mlx4_cleanup_counters_table(dev);
2139 mlx4_cleanup_mcg_table(dev);
2140 mlx4_cleanup_qp_table(dev);
2141 mlx4_cleanup_srq_table(dev);
2142 mlx4_cleanup_cq_table(dev);
2143 mlx4_cmd_use_polling(dev);
2144 mlx4_cleanup_eq_table(dev);
2145 mlx4_cleanup_mr_table(dev);
2146 mlx4_cleanup_xrcd_table(dev);
2147 mlx4_cleanup_pd_table(dev);
2148 mlx4_cleanup_uar_table(dev);
2149
2150 err_steer:
2151 if (!mlx4_is_slave(dev))
2152 mlx4_clear_steering(dev);
2153
2154 err_free_eq:
2155 mlx4_free_eq_table(dev);
2156
2157 err_master_mfunc:
2158 if (mlx4_is_master(dev))
2159 mlx4_multi_func_cleanup(dev);
2160
2161 err_close:
2162 if (dev->flags & MLX4_FLAG_MSI_X)
2163 pci_disable_msix(pdev);
2164
2165 mlx4_close_hca(dev);
2166
2167 err_mfunc:
2168 if (mlx4_is_slave(dev))
2169 mlx4_multi_func_cleanup(dev);
2170
2171 err_cmd:
2172 mlx4_cmd_cleanup(dev);
2173
2174 err_sriov:
2175 if (dev->flags & MLX4_FLAG_SRIOV)
2176 pci_disable_sriov(pdev);
2177
2178 err_rel_own:
2179 if (!mlx4_is_slave(dev))
2180 mlx4_free_ownership(dev);
2181
2182 err_free_dev:
2183 kfree(priv);
2184
2185 err_release_regions:
2186 pci_release_regions(pdev);
2187
2188 err_disable_pdev:
2189 pci_disable_device(pdev);
2190 pci_set_drvdata(pdev, NULL);
2191 return err;
2192 }
2193
2194 static int __devinit mlx4_init_one(struct pci_dev *pdev,
2195 const struct pci_device_id *id)
2196 {
2197 printk_once(KERN_INFO "%s", mlx4_version);
2198
2199 return __mlx4_init_one(pdev, id);
2200 }
2201
2202 static void mlx4_remove_one(struct pci_dev *pdev)
2203 {
2204 struct mlx4_dev *dev = pci_get_drvdata(pdev);
2205 struct mlx4_priv *priv = mlx4_priv(dev);
2206 int p;
2207
2208 if (dev) {
2209 /* in SRIOV it is not allowed to unload the pf's
2210 * driver while there are alive vf's */
2211 if (mlx4_is_master(dev)) {
2212 if (mlx4_how_many_lives_vf(dev))
2213 printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
2214 }
2215 mlx4_stop_sense(dev);
2216 mlx4_unregister_device(dev);
2217
2218 for (p = 1; p <= dev->caps.num_ports; p++) {
2219 mlx4_cleanup_port_info(&priv->port[p]);
2220 mlx4_CLOSE_PORT(dev, p);
2221 }
2222
2223 if (mlx4_is_master(dev))
2224 mlx4_free_resource_tracker(dev,
2225 RES_TR_FREE_SLAVES_ONLY);
2226
2227 mlx4_cleanup_counters_table(dev);
2228 mlx4_cleanup_mcg_table(dev);
2229 mlx4_cleanup_qp_table(dev);
2230 mlx4_cleanup_srq_table(dev);
2231 mlx4_cleanup_cq_table(dev);
2232 mlx4_cmd_use_polling(dev);
2233 mlx4_cleanup_eq_table(dev);
2234 mlx4_cleanup_mr_table(dev);
2235 mlx4_cleanup_xrcd_table(dev);
2236 mlx4_cleanup_pd_table(dev);
2237
2238 if (mlx4_is_master(dev))
2239 mlx4_free_resource_tracker(dev,
2240 RES_TR_FREE_STRUCTS_ONLY);
2241
2242 iounmap(priv->kar);
2243 mlx4_uar_free(dev, &priv->driver_uar);
2244 mlx4_cleanup_uar_table(dev);
2245 if (!mlx4_is_slave(dev))
2246 mlx4_clear_steering(dev);
2247 mlx4_free_eq_table(dev);
2248 if (mlx4_is_master(dev))
2249 mlx4_multi_func_cleanup(dev);
2250 mlx4_close_hca(dev);
2251 if (mlx4_is_slave(dev))
2252 mlx4_multi_func_cleanup(dev);
2253 mlx4_cmd_cleanup(dev);
2254
2255 if (dev->flags & MLX4_FLAG_MSI_X)
2256 pci_disable_msix(pdev);
2257 if (dev->flags & MLX4_FLAG_SRIOV) {
2258 mlx4_warn(dev, "Disabling sriov\n");
2259 pci_disable_sriov(pdev);
2260 }
2261
2262 if (!mlx4_is_slave(dev))
2263 mlx4_free_ownership(dev);
2264 kfree(priv);
2265 pci_release_regions(pdev);
2266 pci_disable_device(pdev);
2267 pci_set_drvdata(pdev, NULL);
2268 }
2269 }
2270
2271 int mlx4_restart_one(struct pci_dev *pdev)
2272 {
2273 mlx4_remove_one(pdev);
2274 return __mlx4_init_one(pdev, NULL);
2275 }
2276
2277 static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
2278 /* MT25408 "Hermon" SDR */
2279 { PCI_VDEVICE(MELLANOX, 0x6340), 0 },
2280 /* MT25408 "Hermon" DDR */
2281 { PCI_VDEVICE(MELLANOX, 0x634a), 0 },
2282 /* MT25408 "Hermon" QDR */
2283 { PCI_VDEVICE(MELLANOX, 0x6354), 0 },
2284 /* MT25408 "Hermon" DDR PCIe gen2 */
2285 { PCI_VDEVICE(MELLANOX, 0x6732), 0 },
2286 /* MT25408 "Hermon" QDR PCIe gen2 */
2287 { PCI_VDEVICE(MELLANOX, 0x673c), 0 },
2288 /* MT25408 "Hermon" EN 10GigE */
2289 { PCI_VDEVICE(MELLANOX, 0x6368), 0 },
2290 /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
2291 { PCI_VDEVICE(MELLANOX, 0x6750), 0 },
2292 /* MT25458 ConnectX EN 10GBASE-T 10GigE */
2293 { PCI_VDEVICE(MELLANOX, 0x6372), 0 },
2294 /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
2295 { PCI_VDEVICE(MELLANOX, 0x675a), 0 },
2296 /* MT26468 ConnectX EN 10GigE PCIe gen2*/
2297 { PCI_VDEVICE(MELLANOX, 0x6764), 0 },
2298 /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
2299 { PCI_VDEVICE(MELLANOX, 0x6746), 0 },
2300 /* MT26478 ConnectX2 40GigE PCIe gen2 */
2301 { PCI_VDEVICE(MELLANOX, 0x676e), 0 },
2302 /* MT25400 Family [ConnectX-2 Virtual Function] */
2303 { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_VF },
2304 /* MT27500 Family [ConnectX-3] */
2305 { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
2306 /* MT27500 Family [ConnectX-3 Virtual Function] */
2307 { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_VF },
2308 { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
2309 { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
2310 { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
2311 { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
2312 { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
2313 { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
2314 { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
2315 { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
2316 { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
2317 { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
2318 { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
2319 { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
2320 { 0, }
2321 };
2322
2323 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
2324
2325 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
2326 pci_channel_state_t state)
2327 {
2328 mlx4_remove_one(pdev);
2329
2330 return state == pci_channel_io_perm_failure ?
2331 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
2332 }
2333
2334 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
2335 {
2336 int ret = __mlx4_init_one(pdev, NULL);
2337
2338 return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
2339 }
2340
2341 static struct pci_error_handlers mlx4_err_handler = {
2342 .error_detected = mlx4_pci_err_detected,
2343 .slot_reset = mlx4_pci_slot_reset,
2344 };
2345
2346 static struct pci_driver mlx4_driver = {
2347 .name = DRV_NAME,
2348 .id_table = mlx4_pci_table,
2349 .probe = mlx4_init_one,
2350 .remove = __devexit_p(mlx4_remove_one),
2351 .err_handler = &mlx4_err_handler,
2352 };
2353
2354 static int __init mlx4_verify_params(void)
2355 {
2356 if ((log_num_mac < 0) || (log_num_mac > 7)) {
2357 pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
2358 return -1;
2359 }
2360
2361 if (log_num_vlan != 0)
2362 pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
2363 MLX4_LOG_NUM_VLANS);
2364
2365 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
2366 pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
2367 return -1;
2368 }
2369
2370 /* Check if module param for ports type has legal combination */
2371 if (port_type_array[0] == false && port_type_array[1] == true) {
2372 printk(KERN_WARNING "Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
2373 port_type_array[0] = true;
2374 }
2375
2376 return 0;
2377 }
2378
2379 static int __init mlx4_init(void)
2380 {
2381 int ret;
2382
2383 if (mlx4_verify_params())
2384 return -EINVAL;
2385
2386 mlx4_catas_init();
2387
2388 mlx4_wq = create_singlethread_workqueue("mlx4");
2389 if (!mlx4_wq)
2390 return -ENOMEM;
2391
2392 ret = pci_register_driver(&mlx4_driver);
2393 return ret < 0 ? ret : 0;
2394 }
2395
2396 static void __exit mlx4_cleanup(void)
2397 {
2398 pci_unregister_driver(&mlx4_driver);
2399 destroy_workqueue(mlx4_wq);
2400 }
2401
2402 module_init(mlx4_init);
2403 module_exit(mlx4_cleanup);
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