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ACPI / LPSS: make code less confusing for reader
[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx4 / main.c
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 = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
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: 7 <="
94 " log_num_mgm_entry_size <= 12."
95 " To activate device managed"
96 " flow steering when available, set to -1");
97
98 static bool enable_64b_cqe_eqe;
99 module_param(enable_64b_cqe_eqe, bool, 0444);
100 MODULE_PARM_DESC(enable_64b_cqe_eqe,
101 "Enable 64 byte CQEs/EQEs when the the FW supports this");
102
103 #define HCA_GLOBAL_CAP_MASK 0
104
105 #define PF_CONTEXT_BEHAVIOUR_MASK MLX4_FUNC_CAP_64B_EQE_CQE
106
107 static char mlx4_version[] =
108 DRV_NAME ": Mellanox ConnectX core driver v"
109 DRV_VERSION " (" DRV_RELDATE ")\n";
110
111 static struct mlx4_profile default_profile = {
112 .num_qp = 1 << 18,
113 .num_srq = 1 << 16,
114 .rdmarc_per_qp = 1 << 4,
115 .num_cq = 1 << 16,
116 .num_mcg = 1 << 13,
117 .num_mpt = 1 << 19,
118 .num_mtt = 1 << 20, /* It is really num mtt segements */
119 };
120
121 static int log_num_mac = 7;
122 module_param_named(log_num_mac, log_num_mac, int, 0444);
123 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
124
125 static int log_num_vlan;
126 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
127 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
128 /* Log2 max number of VLANs per ETH port (0-7) */
129 #define MLX4_LOG_NUM_VLANS 7
130
131 static bool use_prio;
132 module_param_named(use_prio, use_prio, bool, 0444);
133 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
134 "(0/1, default 0)");
135
136 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
137 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
138 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
139
140 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
141 static int arr_argc = 2;
142 module_param_array(port_type_array, int, &arr_argc, 0444);
143 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
144 "1 for IB, 2 for Ethernet");
145
146 struct mlx4_port_config {
147 struct list_head list;
148 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
149 struct pci_dev *pdev;
150 };
151
152 int mlx4_check_port_params(struct mlx4_dev *dev,
153 enum mlx4_port_type *port_type)
154 {
155 int i;
156
157 for (i = 0; i < dev->caps.num_ports - 1; i++) {
158 if (port_type[i] != port_type[i + 1]) {
159 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
160 mlx4_err(dev, "Only same port types supported "
161 "on this HCA, aborting.\n");
162 return -EINVAL;
163 }
164 }
165 }
166
167 for (i = 0; i < dev->caps.num_ports; i++) {
168 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
169 mlx4_err(dev, "Requested port type for port %d is not "
170 "supported on this HCA\n", i + 1);
171 return -EINVAL;
172 }
173 }
174 return 0;
175 }
176
177 static void mlx4_set_port_mask(struct mlx4_dev *dev)
178 {
179 int i;
180
181 for (i = 1; i <= dev->caps.num_ports; ++i)
182 dev->caps.port_mask[i] = dev->caps.port_type[i];
183 }
184
185 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
186 {
187 int err;
188 int i;
189
190 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
191 if (err) {
192 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
193 return err;
194 }
195
196 if (dev_cap->min_page_sz > PAGE_SIZE) {
197 mlx4_err(dev, "HCA minimum page size of %d bigger than "
198 "kernel PAGE_SIZE of %ld, aborting.\n",
199 dev_cap->min_page_sz, PAGE_SIZE);
200 return -ENODEV;
201 }
202 if (dev_cap->num_ports > MLX4_MAX_PORTS) {
203 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
204 "aborting.\n",
205 dev_cap->num_ports, MLX4_MAX_PORTS);
206 return -ENODEV;
207 }
208
209 if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
210 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
211 "PCI resource 2 size of 0x%llx, aborting.\n",
212 dev_cap->uar_size,
213 (unsigned long long) pci_resource_len(dev->pdev, 2));
214 return -ENODEV;
215 }
216
217 dev->caps.num_ports = dev_cap->num_ports;
218 dev->phys_caps.num_phys_eqs = MLX4_MAX_EQ_NUM;
219 for (i = 1; i <= dev->caps.num_ports; ++i) {
220 dev->caps.vl_cap[i] = dev_cap->max_vl[i];
221 dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
222 dev->phys_caps.gid_phys_table_len[i] = dev_cap->max_gids[i];
223 dev->phys_caps.pkey_phys_table_len[i] = dev_cap->max_pkeys[i];
224 /* set gid and pkey table operating lengths by default
225 * to non-sriov values */
226 dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
227 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
228 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
229 dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
230 dev->caps.def_mac[i] = dev_cap->def_mac[i];
231 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
232 dev->caps.suggested_type[i] = dev_cap->suggested_type[i];
233 dev->caps.default_sense[i] = dev_cap->default_sense[i];
234 dev->caps.trans_type[i] = dev_cap->trans_type[i];
235 dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
236 dev->caps.wavelength[i] = dev_cap->wavelength[i];
237 dev->caps.trans_code[i] = dev_cap->trans_code[i];
238 }
239
240 dev->caps.uar_page_size = PAGE_SIZE;
241 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
242 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
243 dev->caps.bf_reg_size = dev_cap->bf_reg_size;
244 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
245 dev->caps.max_sq_sg = dev_cap->max_sq_sg;
246 dev->caps.max_rq_sg = dev_cap->max_rq_sg;
247 dev->caps.max_wqes = dev_cap->max_qp_sz;
248 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
249 dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
250 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
251 dev->caps.reserved_srqs = dev_cap->reserved_srqs;
252 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
253 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
254 /*
255 * Subtract 1 from the limit because we need to allocate a
256 * spare CQE so the HCA HW can tell the difference between an
257 * empty CQ and a full CQ.
258 */
259 dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
260 dev->caps.reserved_cqs = dev_cap->reserved_cqs;
261 dev->caps.reserved_eqs = dev_cap->reserved_eqs;
262 dev->caps.reserved_mtts = dev_cap->reserved_mtts;
263 dev->caps.reserved_mrws = dev_cap->reserved_mrws;
264
265 /* The first 128 UARs are used for EQ doorbells */
266 dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
267 dev->caps.reserved_pds = dev_cap->reserved_pds;
268 dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
269 dev_cap->reserved_xrcds : 0;
270 dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
271 dev_cap->max_xrcds : 0;
272 dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
273
274 dev->caps.max_msg_sz = dev_cap->max_msg_sz;
275 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
276 dev->caps.flags = dev_cap->flags;
277 dev->caps.flags2 = dev_cap->flags2;
278 dev->caps.bmme_flags = dev_cap->bmme_flags;
279 dev->caps.reserved_lkey = dev_cap->reserved_lkey;
280 dev->caps.stat_rate_support = dev_cap->stat_rate_support;
281 dev->caps.max_gso_sz = dev_cap->max_gso_sz;
282 dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz;
283
284 /* Sense port always allowed on supported devices for ConnectX-1 and -2 */
285 if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
286 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
287 /* Don't do sense port on multifunction devices (for now at least) */
288 if (mlx4_is_mfunc(dev))
289 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
290
291 dev->caps.log_num_macs = log_num_mac;
292 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
293 dev->caps.log_num_prios = use_prio ? 3 : 0;
294
295 for (i = 1; i <= dev->caps.num_ports; ++i) {
296 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
297 if (dev->caps.supported_type[i]) {
298 /* if only ETH is supported - assign ETH */
299 if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
300 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
301 /* if only IB is supported, assign IB */
302 else if (dev->caps.supported_type[i] ==
303 MLX4_PORT_TYPE_IB)
304 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
305 else {
306 /* if IB and ETH are supported, we set the port
307 * type according to user selection of port type;
308 * if user selected none, take the FW hint */
309 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
310 dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
311 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
312 else
313 dev->caps.port_type[i] = port_type_array[i - 1];
314 }
315 }
316 /*
317 * Link sensing is allowed on the port if 3 conditions are true:
318 * 1. Both protocols are supported on the port.
319 * 2. Different types are supported on the port
320 * 3. FW declared that it supports link sensing
321 */
322 mlx4_priv(dev)->sense.sense_allowed[i] =
323 ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
324 (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
325 (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
326
327 /*
328 * If "default_sense" bit is set, we move the port to "AUTO" mode
329 * and perform sense_port FW command to try and set the correct
330 * port type from beginning
331 */
332 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
333 enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
334 dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
335 mlx4_SENSE_PORT(dev, i, &sensed_port);
336 if (sensed_port != MLX4_PORT_TYPE_NONE)
337 dev->caps.port_type[i] = sensed_port;
338 } else {
339 dev->caps.possible_type[i] = dev->caps.port_type[i];
340 }
341
342 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
343 dev->caps.log_num_macs = dev_cap->log_max_macs[i];
344 mlx4_warn(dev, "Requested number of MACs is too much "
345 "for port %d, reducing to %d.\n",
346 i, 1 << dev->caps.log_num_macs);
347 }
348 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
349 dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
350 mlx4_warn(dev, "Requested number of VLANs is too much "
351 "for port %d, reducing to %d.\n",
352 i, 1 << dev->caps.log_num_vlans);
353 }
354 }
355
356 dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
357
358 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
359 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
360 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
361 (1 << dev->caps.log_num_macs) *
362 (1 << dev->caps.log_num_vlans) *
363 (1 << dev->caps.log_num_prios) *
364 dev->caps.num_ports;
365 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
366
367 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
368 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
369 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
370 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
371
372 dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
373
374 if (!enable_64b_cqe_eqe) {
375 if (dev_cap->flags &
376 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
377 mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
378 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
379 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
380 }
381 }
382
383 if ((dev->caps.flags &
384 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
385 mlx4_is_master(dev))
386 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
387
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
414 if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
415 qpn < dev->phys_caps.base_proxy_sqpn)
416 return -EINVAL;
417
418 if (qpn >= dev->phys_caps.base_tunnel_sqpn)
419 /* tunnel qp */
420 qk += qpn - dev->phys_caps.base_tunnel_sqpn;
421 else
422 qk += qpn - dev->phys_caps.base_proxy_sqpn;
423 *qkey = qk;
424 return 0;
425 }
426 EXPORT_SYMBOL(mlx4_get_parav_qkey);
427
428 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
429 {
430 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
431
432 if (!mlx4_is_master(dev))
433 return;
434
435 priv->virt2phys_pkey[slave][port - 1][i] = val;
436 }
437 EXPORT_SYMBOL(mlx4_sync_pkey_table);
438
439 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
440 {
441 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
442
443 if (!mlx4_is_master(dev))
444 return;
445
446 priv->slave_node_guids[slave] = guid;
447 }
448 EXPORT_SYMBOL(mlx4_put_slave_node_guid);
449
450 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
451 {
452 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
453
454 if (!mlx4_is_master(dev))
455 return 0;
456
457 return priv->slave_node_guids[slave];
458 }
459 EXPORT_SYMBOL(mlx4_get_slave_node_guid);
460
461 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
462 {
463 struct mlx4_priv *priv = mlx4_priv(dev);
464 struct mlx4_slave_state *s_slave;
465
466 if (!mlx4_is_master(dev))
467 return 0;
468
469 s_slave = &priv->mfunc.master.slave_state[slave];
470 return !!s_slave->active;
471 }
472 EXPORT_SYMBOL(mlx4_is_slave_active);
473
474 static void slave_adjust_steering_mode(struct mlx4_dev *dev,
475 struct mlx4_dev_cap *dev_cap,
476 struct mlx4_init_hca_param *hca_param)
477 {
478 dev->caps.steering_mode = hca_param->steering_mode;
479 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
480 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
481 dev->caps.fs_log_max_ucast_qp_range_size =
482 dev_cap->fs_log_max_ucast_qp_range_size;
483 } else
484 dev->caps.num_qp_per_mgm =
485 4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
486
487 mlx4_dbg(dev, "Steering mode is: %s\n",
488 mlx4_steering_mode_str(dev->caps.steering_mode));
489 }
490
491 static int mlx4_slave_cap(struct mlx4_dev *dev)
492 {
493 int err;
494 u32 page_size;
495 struct mlx4_dev_cap dev_cap;
496 struct mlx4_func_cap func_cap;
497 struct mlx4_init_hca_param hca_param;
498 int i;
499
500 memset(&hca_param, 0, sizeof(hca_param));
501 err = mlx4_QUERY_HCA(dev, &hca_param);
502 if (err) {
503 mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
504 return err;
505 }
506
507 /*fail if the hca has an unknown capability */
508 if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
509 HCA_GLOBAL_CAP_MASK) {
510 mlx4_err(dev, "Unknown hca global capabilities\n");
511 return -ENOSYS;
512 }
513
514 mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
515
516 memset(&dev_cap, 0, sizeof(dev_cap));
517 dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
518 err = mlx4_dev_cap(dev, &dev_cap);
519 if (err) {
520 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
521 return err;
522 }
523
524 err = mlx4_QUERY_FW(dev);
525 if (err)
526 mlx4_err(dev, "QUERY_FW command failed: could not get FW version.\n");
527
528 page_size = ~dev->caps.page_size_cap + 1;
529 mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
530 if (page_size > PAGE_SIZE) {
531 mlx4_err(dev, "HCA minimum page size of %d bigger than "
532 "kernel PAGE_SIZE of %ld, aborting.\n",
533 page_size, PAGE_SIZE);
534 return -ENODEV;
535 }
536
537 /* slave gets uar page size from QUERY_HCA fw command */
538 dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
539
540 /* TODO: relax this assumption */
541 if (dev->caps.uar_page_size != PAGE_SIZE) {
542 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
543 dev->caps.uar_page_size, PAGE_SIZE);
544 return -ENODEV;
545 }
546
547 memset(&func_cap, 0, sizeof(func_cap));
548 err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
549 if (err) {
550 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d).\n",
551 err);
552 return err;
553 }
554
555 if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
556 PF_CONTEXT_BEHAVIOUR_MASK) {
557 mlx4_err(dev, "Unknown pf context behaviour\n");
558 return -ENOSYS;
559 }
560
561 dev->caps.num_ports = func_cap.num_ports;
562 dev->caps.num_qps = func_cap.qp_quota;
563 dev->caps.num_srqs = func_cap.srq_quota;
564 dev->caps.num_cqs = func_cap.cq_quota;
565 dev->caps.num_eqs = func_cap.max_eq;
566 dev->caps.reserved_eqs = func_cap.reserved_eq;
567 dev->caps.num_mpts = func_cap.mpt_quota;
568 dev->caps.num_mtts = func_cap.mtt_quota;
569 dev->caps.num_pds = MLX4_NUM_PDS;
570 dev->caps.num_mgms = 0;
571 dev->caps.num_amgms = 0;
572
573 if (dev->caps.num_ports > MLX4_MAX_PORTS) {
574 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
575 "aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
576 return -ENODEV;
577 }
578
579 dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
580 dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
581 dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
582 dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
583
584 if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
585 !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy) {
586 err = -ENOMEM;
587 goto err_mem;
588 }
589
590 for (i = 1; i <= dev->caps.num_ports; ++i) {
591 err = mlx4_QUERY_FUNC_CAP(dev, (u32) i, &func_cap);
592 if (err) {
593 mlx4_err(dev, "QUERY_FUNC_CAP port command failed for"
594 " port %d, aborting (%d).\n", i, err);
595 goto err_mem;
596 }
597 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
598 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
599 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
600 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
601 dev->caps.port_mask[i] = dev->caps.port_type[i];
602 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
603 &dev->caps.gid_table_len[i],
604 &dev->caps.pkey_table_len[i]))
605 goto err_mem;
606 }
607
608 if (dev->caps.uar_page_size * (dev->caps.num_uars -
609 dev->caps.reserved_uars) >
610 pci_resource_len(dev->pdev, 2)) {
611 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
612 "PCI resource 2 size of 0x%llx, aborting.\n",
613 dev->caps.uar_page_size * dev->caps.num_uars,
614 (unsigned long long) pci_resource_len(dev->pdev, 2));
615 goto err_mem;
616 }
617
618 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
619 dev->caps.eqe_size = 64;
620 dev->caps.eqe_factor = 1;
621 } else {
622 dev->caps.eqe_size = 32;
623 dev->caps.eqe_factor = 0;
624 }
625
626 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
627 dev->caps.cqe_size = 64;
628 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_64B_CQE;
629 } else {
630 dev->caps.cqe_size = 32;
631 }
632
633 slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
634
635 return 0;
636
637 err_mem:
638 kfree(dev->caps.qp0_tunnel);
639 kfree(dev->caps.qp0_proxy);
640 kfree(dev->caps.qp1_tunnel);
641 kfree(dev->caps.qp1_proxy);
642 dev->caps.qp0_tunnel = dev->caps.qp0_proxy =
643 dev->caps.qp1_tunnel = dev->caps.qp1_proxy = NULL;
644
645 return err;
646 }
647
648 /*
649 * Change the port configuration of the device.
650 * Every user of this function must hold the port mutex.
651 */
652 int mlx4_change_port_types(struct mlx4_dev *dev,
653 enum mlx4_port_type *port_types)
654 {
655 int err = 0;
656 int change = 0;
657 int port;
658
659 for (port = 0; port < dev->caps.num_ports; port++) {
660 /* Change the port type only if the new type is different
661 * from the current, and not set to Auto */
662 if (port_types[port] != dev->caps.port_type[port + 1])
663 change = 1;
664 }
665 if (change) {
666 mlx4_unregister_device(dev);
667 for (port = 1; port <= dev->caps.num_ports; port++) {
668 mlx4_CLOSE_PORT(dev, port);
669 dev->caps.port_type[port] = port_types[port - 1];
670 err = mlx4_SET_PORT(dev, port, -1);
671 if (err) {
672 mlx4_err(dev, "Failed to set port %d, "
673 "aborting\n", port);
674 goto out;
675 }
676 }
677 mlx4_set_port_mask(dev);
678 err = mlx4_register_device(dev);
679 }
680
681 out:
682 return err;
683 }
684
685 static ssize_t show_port_type(struct device *dev,
686 struct device_attribute *attr,
687 char *buf)
688 {
689 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
690 port_attr);
691 struct mlx4_dev *mdev = info->dev;
692 char type[8];
693
694 sprintf(type, "%s",
695 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
696 "ib" : "eth");
697 if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
698 sprintf(buf, "auto (%s)\n", type);
699 else
700 sprintf(buf, "%s\n", type);
701
702 return strlen(buf);
703 }
704
705 static ssize_t set_port_type(struct device *dev,
706 struct device_attribute *attr,
707 const char *buf, size_t count)
708 {
709 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
710 port_attr);
711 struct mlx4_dev *mdev = info->dev;
712 struct mlx4_priv *priv = mlx4_priv(mdev);
713 enum mlx4_port_type types[MLX4_MAX_PORTS];
714 enum mlx4_port_type new_types[MLX4_MAX_PORTS];
715 int i;
716 int err = 0;
717
718 if (!strcmp(buf, "ib\n"))
719 info->tmp_type = MLX4_PORT_TYPE_IB;
720 else if (!strcmp(buf, "eth\n"))
721 info->tmp_type = MLX4_PORT_TYPE_ETH;
722 else if (!strcmp(buf, "auto\n"))
723 info->tmp_type = MLX4_PORT_TYPE_AUTO;
724 else {
725 mlx4_err(mdev, "%s is not supported port type\n", buf);
726 return -EINVAL;
727 }
728
729 mlx4_stop_sense(mdev);
730 mutex_lock(&priv->port_mutex);
731 /* Possible type is always the one that was delivered */
732 mdev->caps.possible_type[info->port] = info->tmp_type;
733
734 for (i = 0; i < mdev->caps.num_ports; i++) {
735 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
736 mdev->caps.possible_type[i+1];
737 if (types[i] == MLX4_PORT_TYPE_AUTO)
738 types[i] = mdev->caps.port_type[i+1];
739 }
740
741 if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
742 !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
743 for (i = 1; i <= mdev->caps.num_ports; i++) {
744 if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
745 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
746 err = -EINVAL;
747 }
748 }
749 }
750 if (err) {
751 mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
752 "Set only 'eth' or 'ib' for both ports "
753 "(should be the same)\n");
754 goto out;
755 }
756
757 mlx4_do_sense_ports(mdev, new_types, types);
758
759 err = mlx4_check_port_params(mdev, new_types);
760 if (err)
761 goto out;
762
763 /* We are about to apply the changes after the configuration
764 * was verified, no need to remember the temporary types
765 * any more */
766 for (i = 0; i < mdev->caps.num_ports; i++)
767 priv->port[i + 1].tmp_type = 0;
768
769 err = mlx4_change_port_types(mdev, new_types);
770
771 out:
772 mlx4_start_sense(mdev);
773 mutex_unlock(&priv->port_mutex);
774 return err ? err : count;
775 }
776
777 enum ibta_mtu {
778 IB_MTU_256 = 1,
779 IB_MTU_512 = 2,
780 IB_MTU_1024 = 3,
781 IB_MTU_2048 = 4,
782 IB_MTU_4096 = 5
783 };
784
785 static inline int int_to_ibta_mtu(int mtu)
786 {
787 switch (mtu) {
788 case 256: return IB_MTU_256;
789 case 512: return IB_MTU_512;
790 case 1024: return IB_MTU_1024;
791 case 2048: return IB_MTU_2048;
792 case 4096: return IB_MTU_4096;
793 default: return -1;
794 }
795 }
796
797 static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
798 {
799 switch (mtu) {
800 case IB_MTU_256: return 256;
801 case IB_MTU_512: return 512;
802 case IB_MTU_1024: return 1024;
803 case IB_MTU_2048: return 2048;
804 case IB_MTU_4096: return 4096;
805 default: return -1;
806 }
807 }
808
809 static ssize_t show_port_ib_mtu(struct device *dev,
810 struct device_attribute *attr,
811 char *buf)
812 {
813 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
814 port_mtu_attr);
815 struct mlx4_dev *mdev = info->dev;
816
817 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
818 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
819
820 sprintf(buf, "%d\n",
821 ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
822 return strlen(buf);
823 }
824
825 static ssize_t set_port_ib_mtu(struct device *dev,
826 struct device_attribute *attr,
827 const char *buf, size_t count)
828 {
829 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
830 port_mtu_attr);
831 struct mlx4_dev *mdev = info->dev;
832 struct mlx4_priv *priv = mlx4_priv(mdev);
833 int err, port, mtu, ibta_mtu = -1;
834
835 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
836 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
837 return -EINVAL;
838 }
839
840 err = sscanf(buf, "%d", &mtu);
841 if (err > 0)
842 ibta_mtu = int_to_ibta_mtu(mtu);
843
844 if (err <= 0 || ibta_mtu < 0) {
845 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
846 return -EINVAL;
847 }
848
849 mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
850
851 mlx4_stop_sense(mdev);
852 mutex_lock(&priv->port_mutex);
853 mlx4_unregister_device(mdev);
854 for (port = 1; port <= mdev->caps.num_ports; port++) {
855 mlx4_CLOSE_PORT(mdev, port);
856 err = mlx4_SET_PORT(mdev, port, -1);
857 if (err) {
858 mlx4_err(mdev, "Failed to set port %d, "
859 "aborting\n", port);
860 goto err_set_port;
861 }
862 }
863 err = mlx4_register_device(mdev);
864 err_set_port:
865 mutex_unlock(&priv->port_mutex);
866 mlx4_start_sense(mdev);
867 return err ? err : count;
868 }
869
870 static int mlx4_load_fw(struct mlx4_dev *dev)
871 {
872 struct mlx4_priv *priv = mlx4_priv(dev);
873 int err;
874
875 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
876 GFP_HIGHUSER | __GFP_NOWARN, 0);
877 if (!priv->fw.fw_icm) {
878 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
879 return -ENOMEM;
880 }
881
882 err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
883 if (err) {
884 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
885 goto err_free;
886 }
887
888 err = mlx4_RUN_FW(dev);
889 if (err) {
890 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
891 goto err_unmap_fa;
892 }
893
894 return 0;
895
896 err_unmap_fa:
897 mlx4_UNMAP_FA(dev);
898
899 err_free:
900 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
901 return err;
902 }
903
904 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
905 int cmpt_entry_sz)
906 {
907 struct mlx4_priv *priv = mlx4_priv(dev);
908 int err;
909 int num_eqs;
910
911 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
912 cmpt_base +
913 ((u64) (MLX4_CMPT_TYPE_QP *
914 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
915 cmpt_entry_sz, dev->caps.num_qps,
916 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
917 0, 0);
918 if (err)
919 goto err;
920
921 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
922 cmpt_base +
923 ((u64) (MLX4_CMPT_TYPE_SRQ *
924 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
925 cmpt_entry_sz, dev->caps.num_srqs,
926 dev->caps.reserved_srqs, 0, 0);
927 if (err)
928 goto err_qp;
929
930 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
931 cmpt_base +
932 ((u64) (MLX4_CMPT_TYPE_CQ *
933 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
934 cmpt_entry_sz, dev->caps.num_cqs,
935 dev->caps.reserved_cqs, 0, 0);
936 if (err)
937 goto err_srq;
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.cmpt_table,
942 cmpt_base +
943 ((u64) (MLX4_CMPT_TYPE_EQ *
944 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
945 cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
946 if (err)
947 goto err_cq;
948
949 return 0;
950
951 err_cq:
952 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
953
954 err_srq:
955 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
956
957 err_qp:
958 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
959
960 err:
961 return err;
962 }
963
964 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
965 struct mlx4_init_hca_param *init_hca, u64 icm_size)
966 {
967 struct mlx4_priv *priv = mlx4_priv(dev);
968 u64 aux_pages;
969 int num_eqs;
970 int err;
971
972 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
973 if (err) {
974 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
975 return err;
976 }
977
978 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
979 (unsigned long long) icm_size >> 10,
980 (unsigned long long) aux_pages << 2);
981
982 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
983 GFP_HIGHUSER | __GFP_NOWARN, 0);
984 if (!priv->fw.aux_icm) {
985 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
986 return -ENOMEM;
987 }
988
989 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
990 if (err) {
991 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
992 goto err_free_aux;
993 }
994
995 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
996 if (err) {
997 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
998 goto err_unmap_aux;
999 }
1000
1001
1002 num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
1003 dev->caps.num_eqs;
1004 err = mlx4_init_icm_table(dev, &priv->eq_table.table,
1005 init_hca->eqc_base, dev_cap->eqc_entry_sz,
1006 num_eqs, num_eqs, 0, 0);
1007 if (err) {
1008 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
1009 goto err_unmap_cmpt;
1010 }
1011
1012 /*
1013 * Reserved MTT entries must be aligned up to a cacheline
1014 * boundary, since the FW will write to them, while the driver
1015 * writes to all other MTT entries. (The variable
1016 * dev->caps.mtt_entry_sz below is really the MTT segment
1017 * size, not the raw entry size)
1018 */
1019 dev->caps.reserved_mtts =
1020 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
1021 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
1022
1023 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
1024 init_hca->mtt_base,
1025 dev->caps.mtt_entry_sz,
1026 dev->caps.num_mtts,
1027 dev->caps.reserved_mtts, 1, 0);
1028 if (err) {
1029 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
1030 goto err_unmap_eq;
1031 }
1032
1033 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
1034 init_hca->dmpt_base,
1035 dev_cap->dmpt_entry_sz,
1036 dev->caps.num_mpts,
1037 dev->caps.reserved_mrws, 1, 1);
1038 if (err) {
1039 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
1040 goto err_unmap_mtt;
1041 }
1042
1043 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
1044 init_hca->qpc_base,
1045 dev_cap->qpc_entry_sz,
1046 dev->caps.num_qps,
1047 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1048 0, 0);
1049 if (err) {
1050 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
1051 goto err_unmap_dmpt;
1052 }
1053
1054 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
1055 init_hca->auxc_base,
1056 dev_cap->aux_entry_sz,
1057 dev->caps.num_qps,
1058 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1059 0, 0);
1060 if (err) {
1061 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
1062 goto err_unmap_qp;
1063 }
1064
1065 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1066 init_hca->altc_base,
1067 dev_cap->altc_entry_sz,
1068 dev->caps.num_qps,
1069 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1070 0, 0);
1071 if (err) {
1072 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
1073 goto err_unmap_auxc;
1074 }
1075
1076 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1077 init_hca->rdmarc_base,
1078 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1079 dev->caps.num_qps,
1080 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1081 0, 0);
1082 if (err) {
1083 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1084 goto err_unmap_altc;
1085 }
1086
1087 err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1088 init_hca->cqc_base,
1089 dev_cap->cqc_entry_sz,
1090 dev->caps.num_cqs,
1091 dev->caps.reserved_cqs, 0, 0);
1092 if (err) {
1093 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
1094 goto err_unmap_rdmarc;
1095 }
1096
1097 err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1098 init_hca->srqc_base,
1099 dev_cap->srq_entry_sz,
1100 dev->caps.num_srqs,
1101 dev->caps.reserved_srqs, 0, 0);
1102 if (err) {
1103 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
1104 goto err_unmap_cq;
1105 }
1106
1107 /*
1108 * For flow steering device managed mode it is required to use
1109 * mlx4_init_icm_table. For B0 steering mode it's not strictly
1110 * required, but for simplicity just map the whole multicast
1111 * group table now. The table isn't very big and it's a lot
1112 * easier than trying to track ref counts.
1113 */
1114 err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
1115 init_hca->mc_base,
1116 mlx4_get_mgm_entry_size(dev),
1117 dev->caps.num_mgms + dev->caps.num_amgms,
1118 dev->caps.num_mgms + dev->caps.num_amgms,
1119 0, 0);
1120 if (err) {
1121 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
1122 goto err_unmap_srq;
1123 }
1124
1125 return 0;
1126
1127 err_unmap_srq:
1128 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1129
1130 err_unmap_cq:
1131 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1132
1133 err_unmap_rdmarc:
1134 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1135
1136 err_unmap_altc:
1137 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1138
1139 err_unmap_auxc:
1140 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1141
1142 err_unmap_qp:
1143 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1144
1145 err_unmap_dmpt:
1146 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1147
1148 err_unmap_mtt:
1149 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1150
1151 err_unmap_eq:
1152 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1153
1154 err_unmap_cmpt:
1155 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1156 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1157 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1158 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1159
1160 err_unmap_aux:
1161 mlx4_UNMAP_ICM_AUX(dev);
1162
1163 err_free_aux:
1164 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1165
1166 return err;
1167 }
1168
1169 static void mlx4_free_icms(struct mlx4_dev *dev)
1170 {
1171 struct mlx4_priv *priv = mlx4_priv(dev);
1172
1173 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1174 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1175 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1176 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1177 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1178 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1179 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1180 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1181 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1182 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1183 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1184 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1185 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1186 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1187
1188 mlx4_UNMAP_ICM_AUX(dev);
1189 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1190 }
1191
1192 static void mlx4_slave_exit(struct mlx4_dev *dev)
1193 {
1194 struct mlx4_priv *priv = mlx4_priv(dev);
1195
1196 mutex_lock(&priv->cmd.slave_cmd_mutex);
1197 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
1198 mlx4_warn(dev, "Failed to close slave function.\n");
1199 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1200 }
1201
1202 static int map_bf_area(struct mlx4_dev *dev)
1203 {
1204 struct mlx4_priv *priv = mlx4_priv(dev);
1205 resource_size_t bf_start;
1206 resource_size_t bf_len;
1207 int err = 0;
1208
1209 if (!dev->caps.bf_reg_size)
1210 return -ENXIO;
1211
1212 bf_start = pci_resource_start(dev->pdev, 2) +
1213 (dev->caps.num_uars << PAGE_SHIFT);
1214 bf_len = pci_resource_len(dev->pdev, 2) -
1215 (dev->caps.num_uars << PAGE_SHIFT);
1216 priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1217 if (!priv->bf_mapping)
1218 err = -ENOMEM;
1219
1220 return err;
1221 }
1222
1223 static void unmap_bf_area(struct mlx4_dev *dev)
1224 {
1225 if (mlx4_priv(dev)->bf_mapping)
1226 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1227 }
1228
1229 static void mlx4_close_hca(struct mlx4_dev *dev)
1230 {
1231 unmap_bf_area(dev);
1232 if (mlx4_is_slave(dev))
1233 mlx4_slave_exit(dev);
1234 else {
1235 mlx4_CLOSE_HCA(dev, 0);
1236 mlx4_free_icms(dev);
1237 mlx4_UNMAP_FA(dev);
1238 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1239 }
1240 }
1241
1242 static int mlx4_init_slave(struct mlx4_dev *dev)
1243 {
1244 struct mlx4_priv *priv = mlx4_priv(dev);
1245 u64 dma = (u64) priv->mfunc.vhcr_dma;
1246 int num_of_reset_retries = NUM_OF_RESET_RETRIES;
1247 int ret_from_reset = 0;
1248 u32 slave_read;
1249 u32 cmd_channel_ver;
1250
1251 mutex_lock(&priv->cmd.slave_cmd_mutex);
1252 priv->cmd.max_cmds = 1;
1253 mlx4_warn(dev, "Sending reset\n");
1254 ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
1255 MLX4_COMM_TIME);
1256 /* if we are in the middle of flr the slave will try
1257 * NUM_OF_RESET_RETRIES times before leaving.*/
1258 if (ret_from_reset) {
1259 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
1260 msleep(SLEEP_TIME_IN_RESET);
1261 while (ret_from_reset && num_of_reset_retries) {
1262 mlx4_warn(dev, "slave is currently in the"
1263 "middle of FLR. retrying..."
1264 "(try num:%d)\n",
1265 (NUM_OF_RESET_RETRIES -
1266 num_of_reset_retries + 1));
1267 ret_from_reset =
1268 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET,
1269 0, MLX4_COMM_TIME);
1270 num_of_reset_retries = num_of_reset_retries - 1;
1271 }
1272 } else
1273 goto err;
1274 }
1275
1276 /* check the driver version - the slave I/F revision
1277 * must match the master's */
1278 slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
1279 cmd_channel_ver = mlx4_comm_get_version();
1280
1281 if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
1282 MLX4_COMM_GET_IF_REV(slave_read)) {
1283 mlx4_err(dev, "slave driver version is not supported"
1284 " by the master\n");
1285 goto err;
1286 }
1287
1288 mlx4_warn(dev, "Sending vhcr0\n");
1289 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
1290 MLX4_COMM_TIME))
1291 goto err;
1292 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
1293 MLX4_COMM_TIME))
1294 goto err;
1295 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
1296 MLX4_COMM_TIME))
1297 goto err;
1298 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
1299 goto err;
1300
1301 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1302 return 0;
1303
1304 err:
1305 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
1306 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1307 return -EIO;
1308 }
1309
1310 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
1311 {
1312 int i;
1313
1314 for (i = 1; i <= dev->caps.num_ports; i++) {
1315 dev->caps.gid_table_len[i] = 1;
1316 dev->caps.pkey_table_len[i] =
1317 dev->phys_caps.pkey_phys_table_len[i] - 1;
1318 }
1319 }
1320
1321 static int choose_log_fs_mgm_entry_size(int qp_per_entry)
1322 {
1323 int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
1324
1325 for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
1326 i++) {
1327 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
1328 break;
1329 }
1330
1331 return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
1332 }
1333
1334 static void choose_steering_mode(struct mlx4_dev *dev,
1335 struct mlx4_dev_cap *dev_cap)
1336 {
1337 if (mlx4_log_num_mgm_entry_size == -1 &&
1338 dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
1339 (!mlx4_is_mfunc(dev) ||
1340 (dev_cap->fs_max_num_qp_per_entry >= (num_vfs + 1))) &&
1341 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
1342 MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
1343 dev->oper_log_mgm_entry_size =
1344 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
1345 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1346 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
1347 dev->caps.fs_log_max_ucast_qp_range_size =
1348 dev_cap->fs_log_max_ucast_qp_range_size;
1349 } else {
1350 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
1351 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1352 dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
1353 else {
1354 dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
1355
1356 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
1357 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1358 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags "
1359 "set to use B0 steering. Falling back to A0 steering mode.\n");
1360 }
1361 dev->oper_log_mgm_entry_size =
1362 mlx4_log_num_mgm_entry_size > 0 ?
1363 mlx4_log_num_mgm_entry_size :
1364 MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
1365 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
1366 }
1367 mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, "
1368 "modparam log_num_mgm_entry_size = %d\n",
1369 mlx4_steering_mode_str(dev->caps.steering_mode),
1370 dev->oper_log_mgm_entry_size,
1371 mlx4_log_num_mgm_entry_size);
1372 }
1373
1374 static int mlx4_init_hca(struct mlx4_dev *dev)
1375 {
1376 struct mlx4_priv *priv = mlx4_priv(dev);
1377 struct mlx4_adapter adapter;
1378 struct mlx4_dev_cap dev_cap;
1379 struct mlx4_mod_stat_cfg mlx4_cfg;
1380 struct mlx4_profile profile;
1381 struct mlx4_init_hca_param init_hca;
1382 u64 icm_size;
1383 int err;
1384
1385 if (!mlx4_is_slave(dev)) {
1386 err = mlx4_QUERY_FW(dev);
1387 if (err) {
1388 if (err == -EACCES)
1389 mlx4_info(dev, "non-primary physical function, skipping.\n");
1390 else
1391 mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
1392 return err;
1393 }
1394
1395 err = mlx4_load_fw(dev);
1396 if (err) {
1397 mlx4_err(dev, "Failed to start FW, aborting.\n");
1398 return err;
1399 }
1400
1401 mlx4_cfg.log_pg_sz_m = 1;
1402 mlx4_cfg.log_pg_sz = 0;
1403 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
1404 if (err)
1405 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
1406
1407 err = mlx4_dev_cap(dev, &dev_cap);
1408 if (err) {
1409 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
1410 goto err_stop_fw;
1411 }
1412
1413 choose_steering_mode(dev, &dev_cap);
1414
1415 if (mlx4_is_master(dev))
1416 mlx4_parav_master_pf_caps(dev);
1417
1418 profile = default_profile;
1419 if (dev->caps.steering_mode ==
1420 MLX4_STEERING_MODE_DEVICE_MANAGED)
1421 profile.num_mcg = MLX4_FS_NUM_MCG;
1422
1423 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
1424 &init_hca);
1425 if ((long long) icm_size < 0) {
1426 err = icm_size;
1427 goto err_stop_fw;
1428 }
1429
1430 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
1431
1432 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
1433 init_hca.uar_page_sz = PAGE_SHIFT - 12;
1434 init_hca.mw_enabled = 0;
1435 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
1436 dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
1437 init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE;
1438
1439 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
1440 if (err)
1441 goto err_stop_fw;
1442
1443 err = mlx4_INIT_HCA(dev, &init_hca);
1444 if (err) {
1445 mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
1446 goto err_free_icm;
1447 }
1448 } else {
1449 err = mlx4_init_slave(dev);
1450 if (err) {
1451 mlx4_err(dev, "Failed to initialize slave\n");
1452 return err;
1453 }
1454
1455 err = mlx4_slave_cap(dev);
1456 if (err) {
1457 mlx4_err(dev, "Failed to obtain slave caps\n");
1458 goto err_close;
1459 }
1460 }
1461
1462 if (map_bf_area(dev))
1463 mlx4_dbg(dev, "Failed to map blue flame area\n");
1464
1465 /*Only the master set the ports, all the rest got it from it.*/
1466 if (!mlx4_is_slave(dev))
1467 mlx4_set_port_mask(dev);
1468
1469 err = mlx4_QUERY_ADAPTER(dev, &adapter);
1470 if (err) {
1471 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
1472 goto unmap_bf;
1473 }
1474
1475 priv->eq_table.inta_pin = adapter.inta_pin;
1476 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
1477
1478 return 0;
1479
1480 unmap_bf:
1481 unmap_bf_area(dev);
1482
1483 err_close:
1484 if (mlx4_is_slave(dev))
1485 mlx4_slave_exit(dev);
1486 else
1487 mlx4_CLOSE_HCA(dev, 0);
1488
1489 err_free_icm:
1490 if (!mlx4_is_slave(dev))
1491 mlx4_free_icms(dev);
1492
1493 err_stop_fw:
1494 if (!mlx4_is_slave(dev)) {
1495 mlx4_UNMAP_FA(dev);
1496 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1497 }
1498 return err;
1499 }
1500
1501 static int mlx4_init_counters_table(struct mlx4_dev *dev)
1502 {
1503 struct mlx4_priv *priv = mlx4_priv(dev);
1504 int nent;
1505
1506 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1507 return -ENOENT;
1508
1509 nent = dev->caps.max_counters;
1510 return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
1511 }
1512
1513 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
1514 {
1515 mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
1516 }
1517
1518 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1519 {
1520 struct mlx4_priv *priv = mlx4_priv(dev);
1521
1522 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1523 return -ENOENT;
1524
1525 *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
1526 if (*idx == -1)
1527 return -ENOMEM;
1528
1529 return 0;
1530 }
1531
1532 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1533 {
1534 u64 out_param;
1535 int err;
1536
1537 if (mlx4_is_mfunc(dev)) {
1538 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
1539 RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
1540 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
1541 if (!err)
1542 *idx = get_param_l(&out_param);
1543
1544 return err;
1545 }
1546 return __mlx4_counter_alloc(dev, idx);
1547 }
1548 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
1549
1550 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1551 {
1552 mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
1553 return;
1554 }
1555
1556 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1557 {
1558 u64 in_param;
1559
1560 if (mlx4_is_mfunc(dev)) {
1561 set_param_l(&in_param, idx);
1562 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
1563 MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
1564 MLX4_CMD_WRAPPED);
1565 return;
1566 }
1567 __mlx4_counter_free(dev, idx);
1568 }
1569 EXPORT_SYMBOL_GPL(mlx4_counter_free);
1570
1571 static int mlx4_setup_hca(struct mlx4_dev *dev)
1572 {
1573 struct mlx4_priv *priv = mlx4_priv(dev);
1574 int err;
1575 int port;
1576 __be32 ib_port_default_caps;
1577
1578 err = mlx4_init_uar_table(dev);
1579 if (err) {
1580 mlx4_err(dev, "Failed to initialize "
1581 "user access region table, aborting.\n");
1582 return err;
1583 }
1584
1585 err = mlx4_uar_alloc(dev, &priv->driver_uar);
1586 if (err) {
1587 mlx4_err(dev, "Failed to allocate driver access region, "
1588 "aborting.\n");
1589 goto err_uar_table_free;
1590 }
1591
1592 priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
1593 if (!priv->kar) {
1594 mlx4_err(dev, "Couldn't map kernel access region, "
1595 "aborting.\n");
1596 err = -ENOMEM;
1597 goto err_uar_free;
1598 }
1599
1600 err = mlx4_init_pd_table(dev);
1601 if (err) {
1602 mlx4_err(dev, "Failed to initialize "
1603 "protection domain table, aborting.\n");
1604 goto err_kar_unmap;
1605 }
1606
1607 err = mlx4_init_xrcd_table(dev);
1608 if (err) {
1609 mlx4_err(dev, "Failed to initialize "
1610 "reliable connection domain table, aborting.\n");
1611 goto err_pd_table_free;
1612 }
1613
1614 err = mlx4_init_mr_table(dev);
1615 if (err) {
1616 mlx4_err(dev, "Failed to initialize "
1617 "memory region table, aborting.\n");
1618 goto err_xrcd_table_free;
1619 }
1620
1621 err = mlx4_init_eq_table(dev);
1622 if (err) {
1623 mlx4_err(dev, "Failed to initialize "
1624 "event queue table, aborting.\n");
1625 goto err_mr_table_free;
1626 }
1627
1628 err = mlx4_cmd_use_events(dev);
1629 if (err) {
1630 mlx4_err(dev, "Failed to switch to event-driven "
1631 "firmware commands, aborting.\n");
1632 goto err_eq_table_free;
1633 }
1634
1635 err = mlx4_NOP(dev);
1636 if (err) {
1637 if (dev->flags & MLX4_FLAG_MSI_X) {
1638 mlx4_warn(dev, "NOP command failed to generate MSI-X "
1639 "interrupt IRQ %d).\n",
1640 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
1641 mlx4_warn(dev, "Trying again without MSI-X.\n");
1642 } else {
1643 mlx4_err(dev, "NOP command failed to generate interrupt "
1644 "(IRQ %d), aborting.\n",
1645 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
1646 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
1647 }
1648
1649 goto err_cmd_poll;
1650 }
1651
1652 mlx4_dbg(dev, "NOP command IRQ test passed\n");
1653
1654 err = mlx4_init_cq_table(dev);
1655 if (err) {
1656 mlx4_err(dev, "Failed to initialize "
1657 "completion queue table, aborting.\n");
1658 goto err_cmd_poll;
1659 }
1660
1661 err = mlx4_init_srq_table(dev);
1662 if (err) {
1663 mlx4_err(dev, "Failed to initialize "
1664 "shared receive queue table, aborting.\n");
1665 goto err_cq_table_free;
1666 }
1667
1668 err = mlx4_init_qp_table(dev);
1669 if (err) {
1670 mlx4_err(dev, "Failed to initialize "
1671 "queue pair table, aborting.\n");
1672 goto err_srq_table_free;
1673 }
1674
1675 if (!mlx4_is_slave(dev)) {
1676 err = mlx4_init_mcg_table(dev);
1677 if (err) {
1678 mlx4_err(dev, "Failed to initialize "
1679 "multicast group table, aborting.\n");
1680 goto err_qp_table_free;
1681 }
1682 }
1683
1684 err = mlx4_init_counters_table(dev);
1685 if (err && err != -ENOENT) {
1686 mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
1687 goto err_mcg_table_free;
1688 }
1689
1690 if (!mlx4_is_slave(dev)) {
1691 for (port = 1; port <= dev->caps.num_ports; port++) {
1692 ib_port_default_caps = 0;
1693 err = mlx4_get_port_ib_caps(dev, port,
1694 &ib_port_default_caps);
1695 if (err)
1696 mlx4_warn(dev, "failed to get port %d default "
1697 "ib capabilities (%d). Continuing "
1698 "with caps = 0\n", port, err);
1699 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
1700
1701 /* initialize per-slave default ib port capabilities */
1702 if (mlx4_is_master(dev)) {
1703 int i;
1704 for (i = 0; i < dev->num_slaves; i++) {
1705 if (i == mlx4_master_func_num(dev))
1706 continue;
1707 priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
1708 ib_port_default_caps;
1709 }
1710 }
1711
1712 if (mlx4_is_mfunc(dev))
1713 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
1714 else
1715 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
1716
1717 err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
1718 dev->caps.pkey_table_len[port] : -1);
1719 if (err) {
1720 mlx4_err(dev, "Failed to set port %d, aborting\n",
1721 port);
1722 goto err_counters_table_free;
1723 }
1724 }
1725 }
1726
1727 return 0;
1728
1729 err_counters_table_free:
1730 mlx4_cleanup_counters_table(dev);
1731
1732 err_mcg_table_free:
1733 mlx4_cleanup_mcg_table(dev);
1734
1735 err_qp_table_free:
1736 mlx4_cleanup_qp_table(dev);
1737
1738 err_srq_table_free:
1739 mlx4_cleanup_srq_table(dev);
1740
1741 err_cq_table_free:
1742 mlx4_cleanup_cq_table(dev);
1743
1744 err_cmd_poll:
1745 mlx4_cmd_use_polling(dev);
1746
1747 err_eq_table_free:
1748 mlx4_cleanup_eq_table(dev);
1749
1750 err_mr_table_free:
1751 mlx4_cleanup_mr_table(dev);
1752
1753 err_xrcd_table_free:
1754 mlx4_cleanup_xrcd_table(dev);
1755
1756 err_pd_table_free:
1757 mlx4_cleanup_pd_table(dev);
1758
1759 err_kar_unmap:
1760 iounmap(priv->kar);
1761
1762 err_uar_free:
1763 mlx4_uar_free(dev, &priv->driver_uar);
1764
1765 err_uar_table_free:
1766 mlx4_cleanup_uar_table(dev);
1767 return err;
1768 }
1769
1770 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
1771 {
1772 struct mlx4_priv *priv = mlx4_priv(dev);
1773 struct msix_entry *entries;
1774 int nreq = min_t(int, dev->caps.num_ports *
1775 min_t(int, netif_get_num_default_rss_queues() + 1,
1776 MAX_MSIX_P_PORT) + MSIX_LEGACY_SZ, MAX_MSIX);
1777 int err;
1778 int i;
1779
1780 if (msi_x) {
1781 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
1782 nreq);
1783
1784 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
1785 if (!entries)
1786 goto no_msi;
1787
1788 for (i = 0; i < nreq; ++i)
1789 entries[i].entry = i;
1790
1791 retry:
1792 err = pci_enable_msix(dev->pdev, entries, nreq);
1793 if (err) {
1794 /* Try again if at least 2 vectors are available */
1795 if (err > 1) {
1796 mlx4_info(dev, "Requested %d vectors, "
1797 "but only %d MSI-X vectors available, "
1798 "trying again\n", nreq, err);
1799 nreq = err;
1800 goto retry;
1801 }
1802 kfree(entries);
1803 goto no_msi;
1804 }
1805
1806 if (nreq <
1807 MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
1808 /*Working in legacy mode , all EQ's shared*/
1809 dev->caps.comp_pool = 0;
1810 dev->caps.num_comp_vectors = nreq - 1;
1811 } else {
1812 dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
1813 dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
1814 }
1815 for (i = 0; i < nreq; ++i)
1816 priv->eq_table.eq[i].irq = entries[i].vector;
1817
1818 dev->flags |= MLX4_FLAG_MSI_X;
1819
1820 kfree(entries);
1821 return;
1822 }
1823
1824 no_msi:
1825 dev->caps.num_comp_vectors = 1;
1826 dev->caps.comp_pool = 0;
1827
1828 for (i = 0; i < 2; ++i)
1829 priv->eq_table.eq[i].irq = dev->pdev->irq;
1830 }
1831
1832 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
1833 {
1834 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
1835 int err = 0;
1836
1837 info->dev = dev;
1838 info->port = port;
1839 if (!mlx4_is_slave(dev)) {
1840 mlx4_init_mac_table(dev, &info->mac_table);
1841 mlx4_init_vlan_table(dev, &info->vlan_table);
1842 info->base_qpn = mlx4_get_base_qpn(dev, port);
1843 }
1844
1845 sprintf(info->dev_name, "mlx4_port%d", port);
1846 info->port_attr.attr.name = info->dev_name;
1847 if (mlx4_is_mfunc(dev))
1848 info->port_attr.attr.mode = S_IRUGO;
1849 else {
1850 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
1851 info->port_attr.store = set_port_type;
1852 }
1853 info->port_attr.show = show_port_type;
1854 sysfs_attr_init(&info->port_attr.attr);
1855
1856 err = device_create_file(&dev->pdev->dev, &info->port_attr);
1857 if (err) {
1858 mlx4_err(dev, "Failed to create file for port %d\n", port);
1859 info->port = -1;
1860 }
1861
1862 sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
1863 info->port_mtu_attr.attr.name = info->dev_mtu_name;
1864 if (mlx4_is_mfunc(dev))
1865 info->port_mtu_attr.attr.mode = S_IRUGO;
1866 else {
1867 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
1868 info->port_mtu_attr.store = set_port_ib_mtu;
1869 }
1870 info->port_mtu_attr.show = show_port_ib_mtu;
1871 sysfs_attr_init(&info->port_mtu_attr.attr);
1872
1873 err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr);
1874 if (err) {
1875 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
1876 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1877 info->port = -1;
1878 }
1879
1880 return err;
1881 }
1882
1883 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
1884 {
1885 if (info->port < 0)
1886 return;
1887
1888 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1889 device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr);
1890 }
1891
1892 static int mlx4_init_steering(struct mlx4_dev *dev)
1893 {
1894 struct mlx4_priv *priv = mlx4_priv(dev);
1895 int num_entries = dev->caps.num_ports;
1896 int i, j;
1897
1898 priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
1899 if (!priv->steer)
1900 return -ENOMEM;
1901
1902 for (i = 0; i < num_entries; i++)
1903 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1904 INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
1905 INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
1906 }
1907 return 0;
1908 }
1909
1910 static void mlx4_clear_steering(struct mlx4_dev *dev)
1911 {
1912 struct mlx4_priv *priv = mlx4_priv(dev);
1913 struct mlx4_steer_index *entry, *tmp_entry;
1914 struct mlx4_promisc_qp *pqp, *tmp_pqp;
1915 int num_entries = dev->caps.num_ports;
1916 int i, j;
1917
1918 for (i = 0; i < num_entries; i++) {
1919 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1920 list_for_each_entry_safe(pqp, tmp_pqp,
1921 &priv->steer[i].promisc_qps[j],
1922 list) {
1923 list_del(&pqp->list);
1924 kfree(pqp);
1925 }
1926 list_for_each_entry_safe(entry, tmp_entry,
1927 &priv->steer[i].steer_entries[j],
1928 list) {
1929 list_del(&entry->list);
1930 list_for_each_entry_safe(pqp, tmp_pqp,
1931 &entry->duplicates,
1932 list) {
1933 list_del(&pqp->list);
1934 kfree(pqp);
1935 }
1936 kfree(entry);
1937 }
1938 }
1939 }
1940 kfree(priv->steer);
1941 }
1942
1943 static int extended_func_num(struct pci_dev *pdev)
1944 {
1945 return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
1946 }
1947
1948 #define MLX4_OWNER_BASE 0x8069c
1949 #define MLX4_OWNER_SIZE 4
1950
1951 static int mlx4_get_ownership(struct mlx4_dev *dev)
1952 {
1953 void __iomem *owner;
1954 u32 ret;
1955
1956 if (pci_channel_offline(dev->pdev))
1957 return -EIO;
1958
1959 owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1960 MLX4_OWNER_SIZE);
1961 if (!owner) {
1962 mlx4_err(dev, "Failed to obtain ownership bit\n");
1963 return -ENOMEM;
1964 }
1965
1966 ret = readl(owner);
1967 iounmap(owner);
1968 return (int) !!ret;
1969 }
1970
1971 static void mlx4_free_ownership(struct mlx4_dev *dev)
1972 {
1973 void __iomem *owner;
1974
1975 if (pci_channel_offline(dev->pdev))
1976 return;
1977
1978 owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1979 MLX4_OWNER_SIZE);
1980 if (!owner) {
1981 mlx4_err(dev, "Failed to obtain ownership bit\n");
1982 return;
1983 }
1984 writel(0, owner);
1985 msleep(1000);
1986 iounmap(owner);
1987 }
1988
1989 static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
1990 {
1991 struct mlx4_priv *priv;
1992 struct mlx4_dev *dev;
1993 int err;
1994 int port;
1995
1996 pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
1997
1998 err = pci_enable_device(pdev);
1999 if (err) {
2000 dev_err(&pdev->dev, "Cannot enable PCI device, "
2001 "aborting.\n");
2002 return err;
2003 }
2004 if (num_vfs > MLX4_MAX_NUM_VF) {
2005 printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
2006 num_vfs, MLX4_MAX_NUM_VF);
2007 return -EINVAL;
2008 }
2009 /*
2010 * Check for BARs.
2011 */
2012 if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
2013 !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2014 dev_err(&pdev->dev, "Missing DCS, aborting."
2015 "(driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
2016 pci_dev_data, pci_resource_flags(pdev, 0));
2017 err = -ENODEV;
2018 goto err_disable_pdev;
2019 }
2020 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
2021 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
2022 err = -ENODEV;
2023 goto err_disable_pdev;
2024 }
2025
2026 err = pci_request_regions(pdev, DRV_NAME);
2027 if (err) {
2028 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
2029 goto err_disable_pdev;
2030 }
2031
2032 pci_set_master(pdev);
2033
2034 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2035 if (err) {
2036 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
2037 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2038 if (err) {
2039 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
2040 goto err_release_regions;
2041 }
2042 }
2043 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
2044 if (err) {
2045 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
2046 "consistent PCI DMA mask.\n");
2047 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
2048 if (err) {
2049 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
2050 "aborting.\n");
2051 goto err_release_regions;
2052 }
2053 }
2054
2055 /* Allow large DMA segments, up to the firmware limit of 1 GB */
2056 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
2057
2058 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
2059 if (!priv) {
2060 err = -ENOMEM;
2061 goto err_release_regions;
2062 }
2063
2064 dev = &priv->dev;
2065 dev->pdev = pdev;
2066 INIT_LIST_HEAD(&priv->ctx_list);
2067 spin_lock_init(&priv->ctx_lock);
2068
2069 mutex_init(&priv->port_mutex);
2070
2071 INIT_LIST_HEAD(&priv->pgdir_list);
2072 mutex_init(&priv->pgdir_mutex);
2073
2074 INIT_LIST_HEAD(&priv->bf_list);
2075 mutex_init(&priv->bf_mutex);
2076
2077 dev->rev_id = pdev->revision;
2078 /* Detect if this device is a virtual function */
2079 if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
2080 /* When acting as pf, we normally skip vfs unless explicitly
2081 * requested to probe them. */
2082 if (num_vfs && extended_func_num(pdev) > probe_vf) {
2083 mlx4_warn(dev, "Skipping virtual function:%d\n",
2084 extended_func_num(pdev));
2085 err = -ENODEV;
2086 goto err_free_dev;
2087 }
2088 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
2089 dev->flags |= MLX4_FLAG_SLAVE;
2090 } else {
2091 /* We reset the device and enable SRIOV only for physical
2092 * devices. Try to claim ownership on the device;
2093 * if already taken, skip -- do not allow multiple PFs */
2094 err = mlx4_get_ownership(dev);
2095 if (err) {
2096 if (err < 0)
2097 goto err_free_dev;
2098 else {
2099 mlx4_warn(dev, "Multiple PFs not yet supported."
2100 " Skipping PF.\n");
2101 err = -EINVAL;
2102 goto err_free_dev;
2103 }
2104 }
2105
2106 if (num_vfs) {
2107 mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", num_vfs);
2108 err = pci_enable_sriov(pdev, num_vfs);
2109 if (err) {
2110 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d).\n",
2111 err);
2112 err = 0;
2113 } else {
2114 mlx4_warn(dev, "Running in master mode\n");
2115 dev->flags |= MLX4_FLAG_SRIOV |
2116 MLX4_FLAG_MASTER;
2117 dev->num_vfs = num_vfs;
2118 }
2119 }
2120
2121 /*
2122 * Now reset the HCA before we touch the PCI capabilities or
2123 * attempt a firmware command, since a boot ROM may have left
2124 * the HCA in an undefined state.
2125 */
2126 err = mlx4_reset(dev);
2127 if (err) {
2128 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
2129 goto err_rel_own;
2130 }
2131 }
2132
2133 slave_start:
2134 err = mlx4_cmd_init(dev);
2135 if (err) {
2136 mlx4_err(dev, "Failed to init command interface, aborting.\n");
2137 goto err_sriov;
2138 }
2139
2140 /* In slave functions, the communication channel must be initialized
2141 * before posting commands. Also, init num_slaves before calling
2142 * mlx4_init_hca */
2143 if (mlx4_is_mfunc(dev)) {
2144 if (mlx4_is_master(dev))
2145 dev->num_slaves = MLX4_MAX_NUM_SLAVES;
2146 else {
2147 dev->num_slaves = 0;
2148 err = mlx4_multi_func_init(dev);
2149 if (err) {
2150 mlx4_err(dev, "Failed to init slave mfunc"
2151 " interface, aborting.\n");
2152 goto err_cmd;
2153 }
2154 }
2155 }
2156
2157 err = mlx4_init_hca(dev);
2158 if (err) {
2159 if (err == -EACCES) {
2160 /* Not primary Physical function
2161 * Running in slave mode */
2162 mlx4_cmd_cleanup(dev);
2163 dev->flags |= MLX4_FLAG_SLAVE;
2164 dev->flags &= ~MLX4_FLAG_MASTER;
2165 goto slave_start;
2166 } else
2167 goto err_mfunc;
2168 }
2169
2170 /* In master functions, the communication channel must be initialized
2171 * after obtaining its address from fw */
2172 if (mlx4_is_master(dev)) {
2173 err = mlx4_multi_func_init(dev);
2174 if (err) {
2175 mlx4_err(dev, "Failed to init master mfunc"
2176 "interface, aborting.\n");
2177 goto err_close;
2178 }
2179 }
2180
2181 err = mlx4_alloc_eq_table(dev);
2182 if (err)
2183 goto err_master_mfunc;
2184
2185 priv->msix_ctl.pool_bm = 0;
2186 mutex_init(&priv->msix_ctl.pool_lock);
2187
2188 mlx4_enable_msi_x(dev);
2189 if ((mlx4_is_mfunc(dev)) &&
2190 !(dev->flags & MLX4_FLAG_MSI_X)) {
2191 err = -ENOSYS;
2192 mlx4_err(dev, "INTx is not supported in multi-function mode."
2193 " aborting.\n");
2194 goto err_free_eq;
2195 }
2196
2197 if (!mlx4_is_slave(dev)) {
2198 err = mlx4_init_steering(dev);
2199 if (err)
2200 goto err_free_eq;
2201 }
2202
2203 err = mlx4_setup_hca(dev);
2204 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
2205 !mlx4_is_mfunc(dev)) {
2206 dev->flags &= ~MLX4_FLAG_MSI_X;
2207 dev->caps.num_comp_vectors = 1;
2208 dev->caps.comp_pool = 0;
2209 pci_disable_msix(pdev);
2210 err = mlx4_setup_hca(dev);
2211 }
2212
2213 if (err)
2214 goto err_steer;
2215
2216 for (port = 1; port <= dev->caps.num_ports; port++) {
2217 err = mlx4_init_port_info(dev, port);
2218 if (err)
2219 goto err_port;
2220 }
2221
2222 err = mlx4_register_device(dev);
2223 if (err)
2224 goto err_port;
2225
2226 mlx4_sense_init(dev);
2227 mlx4_start_sense(dev);
2228
2229 priv->pci_dev_data = pci_dev_data;
2230 pci_set_drvdata(pdev, dev);
2231
2232 return 0;
2233
2234 err_port:
2235 for (--port; port >= 1; --port)
2236 mlx4_cleanup_port_info(&priv->port[port]);
2237
2238 mlx4_cleanup_counters_table(dev);
2239 mlx4_cleanup_mcg_table(dev);
2240 mlx4_cleanup_qp_table(dev);
2241 mlx4_cleanup_srq_table(dev);
2242 mlx4_cleanup_cq_table(dev);
2243 mlx4_cmd_use_polling(dev);
2244 mlx4_cleanup_eq_table(dev);
2245 mlx4_cleanup_mr_table(dev);
2246 mlx4_cleanup_xrcd_table(dev);
2247 mlx4_cleanup_pd_table(dev);
2248 mlx4_cleanup_uar_table(dev);
2249
2250 err_steer:
2251 if (!mlx4_is_slave(dev))
2252 mlx4_clear_steering(dev);
2253
2254 err_free_eq:
2255 mlx4_free_eq_table(dev);
2256
2257 err_master_mfunc:
2258 if (mlx4_is_master(dev))
2259 mlx4_multi_func_cleanup(dev);
2260
2261 err_close:
2262 if (dev->flags & MLX4_FLAG_MSI_X)
2263 pci_disable_msix(pdev);
2264
2265 mlx4_close_hca(dev);
2266
2267 err_mfunc:
2268 if (mlx4_is_slave(dev))
2269 mlx4_multi_func_cleanup(dev);
2270
2271 err_cmd:
2272 mlx4_cmd_cleanup(dev);
2273
2274 err_sriov:
2275 if (dev->flags & MLX4_FLAG_SRIOV)
2276 pci_disable_sriov(pdev);
2277
2278 err_rel_own:
2279 if (!mlx4_is_slave(dev))
2280 mlx4_free_ownership(dev);
2281
2282 err_free_dev:
2283 kfree(priv);
2284
2285 err_release_regions:
2286 pci_release_regions(pdev);
2287
2288 err_disable_pdev:
2289 pci_disable_device(pdev);
2290 pci_set_drvdata(pdev, NULL);
2291 return err;
2292 }
2293
2294 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
2295 {
2296 printk_once(KERN_INFO "%s", mlx4_version);
2297
2298 return __mlx4_init_one(pdev, id->driver_data);
2299 }
2300
2301 static void mlx4_remove_one(struct pci_dev *pdev)
2302 {
2303 struct mlx4_dev *dev = pci_get_drvdata(pdev);
2304 struct mlx4_priv *priv = mlx4_priv(dev);
2305 int p;
2306
2307 if (dev) {
2308 /* in SRIOV it is not allowed to unload the pf's
2309 * driver while there are alive vf's */
2310 if (mlx4_is_master(dev)) {
2311 if (mlx4_how_many_lives_vf(dev))
2312 printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
2313 }
2314 mlx4_stop_sense(dev);
2315 mlx4_unregister_device(dev);
2316
2317 for (p = 1; p <= dev->caps.num_ports; p++) {
2318 mlx4_cleanup_port_info(&priv->port[p]);
2319 mlx4_CLOSE_PORT(dev, p);
2320 }
2321
2322 if (mlx4_is_master(dev))
2323 mlx4_free_resource_tracker(dev,
2324 RES_TR_FREE_SLAVES_ONLY);
2325
2326 mlx4_cleanup_counters_table(dev);
2327 mlx4_cleanup_mcg_table(dev);
2328 mlx4_cleanup_qp_table(dev);
2329 mlx4_cleanup_srq_table(dev);
2330 mlx4_cleanup_cq_table(dev);
2331 mlx4_cmd_use_polling(dev);
2332 mlx4_cleanup_eq_table(dev);
2333 mlx4_cleanup_mr_table(dev);
2334 mlx4_cleanup_xrcd_table(dev);
2335 mlx4_cleanup_pd_table(dev);
2336
2337 if (mlx4_is_master(dev))
2338 mlx4_free_resource_tracker(dev,
2339 RES_TR_FREE_STRUCTS_ONLY);
2340
2341 iounmap(priv->kar);
2342 mlx4_uar_free(dev, &priv->driver_uar);
2343 mlx4_cleanup_uar_table(dev);
2344 if (!mlx4_is_slave(dev))
2345 mlx4_clear_steering(dev);
2346 mlx4_free_eq_table(dev);
2347 if (mlx4_is_master(dev))
2348 mlx4_multi_func_cleanup(dev);
2349 mlx4_close_hca(dev);
2350 if (mlx4_is_slave(dev))
2351 mlx4_multi_func_cleanup(dev);
2352 mlx4_cmd_cleanup(dev);
2353
2354 if (dev->flags & MLX4_FLAG_MSI_X)
2355 pci_disable_msix(pdev);
2356 if (dev->flags & MLX4_FLAG_SRIOV) {
2357 mlx4_warn(dev, "Disabling SR-IOV\n");
2358 pci_disable_sriov(pdev);
2359 }
2360
2361 if (!mlx4_is_slave(dev))
2362 mlx4_free_ownership(dev);
2363
2364 kfree(dev->caps.qp0_tunnel);
2365 kfree(dev->caps.qp0_proxy);
2366 kfree(dev->caps.qp1_tunnel);
2367 kfree(dev->caps.qp1_proxy);
2368
2369 kfree(priv);
2370 pci_release_regions(pdev);
2371 pci_disable_device(pdev);
2372 pci_set_drvdata(pdev, NULL);
2373 }
2374 }
2375
2376 int mlx4_restart_one(struct pci_dev *pdev)
2377 {
2378 struct mlx4_dev *dev = pci_get_drvdata(pdev);
2379 struct mlx4_priv *priv = mlx4_priv(dev);
2380 int pci_dev_data;
2381
2382 pci_dev_data = priv->pci_dev_data;
2383 mlx4_remove_one(pdev);
2384 return __mlx4_init_one(pdev, pci_dev_data);
2385 }
2386
2387 static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
2388 /* MT25408 "Hermon" SDR */
2389 { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2390 /* MT25408 "Hermon" DDR */
2391 { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2392 /* MT25408 "Hermon" QDR */
2393 { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2394 /* MT25408 "Hermon" DDR PCIe gen2 */
2395 { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2396 /* MT25408 "Hermon" QDR PCIe gen2 */
2397 { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2398 /* MT25408 "Hermon" EN 10GigE */
2399 { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2400 /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
2401 { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2402 /* MT25458 ConnectX EN 10GBASE-T 10GigE */
2403 { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2404 /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
2405 { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2406 /* MT26468 ConnectX EN 10GigE PCIe gen2*/
2407 { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2408 /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
2409 { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2410 /* MT26478 ConnectX2 40GigE PCIe gen2 */
2411 { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2412 /* MT25400 Family [ConnectX-2 Virtual Function] */
2413 { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
2414 /* MT27500 Family [ConnectX-3] */
2415 { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
2416 /* MT27500 Family [ConnectX-3 Virtual Function] */
2417 { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
2418 { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
2419 { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
2420 { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
2421 { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
2422 { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
2423 { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
2424 { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
2425 { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
2426 { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
2427 { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
2428 { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
2429 { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
2430 { 0, }
2431 };
2432
2433 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
2434
2435 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
2436 pci_channel_state_t state)
2437 {
2438 mlx4_remove_one(pdev);
2439
2440 return state == pci_channel_io_perm_failure ?
2441 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
2442 }
2443
2444 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
2445 {
2446 int ret = __mlx4_init_one(pdev, 0);
2447
2448 return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
2449 }
2450
2451 static const struct pci_error_handlers mlx4_err_handler = {
2452 .error_detected = mlx4_pci_err_detected,
2453 .slot_reset = mlx4_pci_slot_reset,
2454 };
2455
2456 static struct pci_driver mlx4_driver = {
2457 .name = DRV_NAME,
2458 .id_table = mlx4_pci_table,
2459 .probe = mlx4_init_one,
2460 .remove = mlx4_remove_one,
2461 .err_handler = &mlx4_err_handler,
2462 };
2463
2464 static int __init mlx4_verify_params(void)
2465 {
2466 if ((log_num_mac < 0) || (log_num_mac > 7)) {
2467 pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
2468 return -1;
2469 }
2470
2471 if (log_num_vlan != 0)
2472 pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
2473 MLX4_LOG_NUM_VLANS);
2474
2475 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
2476 pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
2477 return -1;
2478 }
2479
2480 /* Check if module param for ports type has legal combination */
2481 if (port_type_array[0] == false && port_type_array[1] == true) {
2482 printk(KERN_WARNING "Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
2483 port_type_array[0] = true;
2484 }
2485
2486 if (mlx4_log_num_mgm_entry_size != -1 &&
2487 (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
2488 mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE)) {
2489 pr_warning("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not "
2490 "in legal range (-1 or %d..%d)\n",
2491 mlx4_log_num_mgm_entry_size,
2492 MLX4_MIN_MGM_LOG_ENTRY_SIZE,
2493 MLX4_MAX_MGM_LOG_ENTRY_SIZE);
2494 return -1;
2495 }
2496
2497 return 0;
2498 }
2499
2500 static int __init mlx4_init(void)
2501 {
2502 int ret;
2503
2504 if (mlx4_verify_params())
2505 return -EINVAL;
2506
2507 mlx4_catas_init();
2508
2509 mlx4_wq = create_singlethread_workqueue("mlx4");
2510 if (!mlx4_wq)
2511 return -ENOMEM;
2512
2513 ret = pci_register_driver(&mlx4_driver);
2514 return ret < 0 ? ret : 0;
2515 }
2516
2517 static void __exit mlx4_cleanup(void)
2518 {
2519 pci_unregister_driver(&mlx4_driver);
2520 destroy_workqueue(mlx4_wq);
2521 }
2522
2523 module_init(mlx4_init);
2524 module_exit(mlx4_cleanup);
Linux kernel - Deliverables
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