1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005, 2006, 2007, 2008, 2014 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35 #include <linux/etherdevice.h>
36 #include <linux/mlx4/cmd.h>
37 #include <linux/module.h>
38 #include <linux/cache.h>
39
40 #include "fw.h"
41 #include "icm.h"
42
43 enum {
44 MLX4_COMMAND_INTERFACE_MIN_REV = 2,
45 MLX4_COMMAND_INTERFACE_MAX_REV = 3,
46 MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS = 3,
47 };
48
49 extern void __buggy_use_of_MLX4_GET(void);
50 extern void __buggy_use_of_MLX4_PUT(void);
51
52 static bool enable_qos;
53 module_param(enable_qos, bool, 0444);
54 MODULE_PARM_DESC(enable_qos, "Enable Quality of Service support in the HCA (default: off)");
55
56 #define MLX4_GET(dest, source, offset) \
57 do { \
58 void *__p = (char *) (source) + (offset); \
59 switch (sizeof (dest)) { \
60 case 1: (dest) = *(u8 *) __p; break; \
61 case 2: (dest) = be16_to_cpup(__p); break; \
62 case 4: (dest) = be32_to_cpup(__p); break; \
63 case 8: (dest) = be64_to_cpup(__p); break; \
64 default: __buggy_use_of_MLX4_GET(); \
65 } \
66 } while (0)
67
68 #define MLX4_PUT(dest, source, offset) \
69 do { \
70 void *__d = ((char *) (dest) + (offset)); \
71 switch (sizeof(source)) { \
72 case 1: *(u8 *) __d = (source); break; \
73 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
74 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
75 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
76 default: __buggy_use_of_MLX4_PUT(); \
77 } \
78 } while (0)
79
dump_dev_cap_flags(struct mlx4_dev * dev,u64 flags)80 static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
81 {
82 static const char *fname[] = {
83 [ 0] = "RC transport",
84 [ 1] = "UC transport",
85 [ 2] = "UD transport",
86 [ 3] = "XRC transport",
87 [ 4] = "reliable multicast",
88 [ 5] = "FCoIB support",
89 [ 6] = "SRQ support",
90 [ 7] = "IPoIB checksum offload",
91 [ 8] = "P_Key violation counter",
92 [ 9] = "Q_Key violation counter",
93 [10] = "VMM",
94 [12] = "DPDP",
95 [15] = "Big LSO headers",
96 [16] = "MW support",
97 [17] = "APM support",
98 [18] = "Atomic ops support",
99 [19] = "Raw multicast support",
100 [20] = "Address vector port checking support",
101 [21] = "UD multicast support",
102 [24] = "Demand paging support",
103 [25] = "Router support",
104 [30] = "IBoE support",
105 [32] = "Unicast loopback support",
106 [34] = "FCS header control",
107 [38] = "Wake On LAN support",
108 [40] = "UDP RSS support",
109 [41] = "Unicast VEP steering support",
110 [42] = "Multicast VEP steering support",
111 [44] = "Cross-channel (sync_qp) operations support",
112 [48] = "Counters support",
113 [59] = "Port management change event support",
114 [60] = "eSwitch support",
115 [61] = "64 byte EQE support",
116 [62] = "64 byte CQE support",
117 };
118 int i;
119
120 mlx4_dbg(dev, "DEV_CAP flags:\n");
121 for (i = 0; i < ARRAY_SIZE(fname); ++i)
122 if (fname[i] && (flags & (1LL << i)))
123 mlx4_dbg(dev, " %s\n", fname[i]);
124 }
125
dump_dev_cap_flags2(struct mlx4_dev * dev,u64 flags)126 static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
127 {
128 static const char * const fname[] = {
129 [0] = "RSS support",
130 [1] = "RSS Toeplitz Hash Function support",
131 [2] = "RSS XOR Hash Function support",
132 [3] = "Device manage flow steering support",
133 [4] = "FSM (MAC unti-spoofing) support",
134 [5] = "VST (control vlan insertion/stripping) support",
135 [6] = "Dynamic QP updates support",
136 [7] = "Loopback source checks support",
137 [8] = "Device managed flow steering IPoIB support",
138 [9] = "ETS configuration support",
139 [10] = "ETH backplane autoneg report",
140 [11] = "Ethernet Flow control statistics support",
141 [12] = "Recoverable error events support",
142 [13] = "Time stamping support",
143 [14] = "Report driver version to FW support"
144 };
145 int i;
146
147 for (i = 0; i < ARRAY_SIZE(fname); ++i)
148 if (fname[i] && (flags & (1LL << i)))
149 mlx4_dbg(dev, " %s\n", fname[i]);
150 }
151
mlx4_MOD_STAT_CFG(struct mlx4_dev * dev,struct mlx4_mod_stat_cfg * cfg)152 int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
153 {
154 struct mlx4_cmd_mailbox *mailbox;
155 u32 *inbox;
156 int err = 0;
157
158 #define MOD_STAT_CFG_IN_SIZE 0x100
159
160 #define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
161 #define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
162
163 mailbox = mlx4_alloc_cmd_mailbox(dev);
164 if (IS_ERR(mailbox))
165 return PTR_ERR(mailbox);
166 inbox = mailbox->buf;
167
168 memset(inbox, 0, MOD_STAT_CFG_IN_SIZE);
169
170 MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
171 MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
172
173 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
174 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
175
176 mlx4_free_cmd_mailbox(dev, mailbox);
177 return err;
178 }
179
mlx4_QUERY_FUNC(struct mlx4_dev * dev,struct mlx4_func * func,int slave)180 int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
181 {
182 struct mlx4_cmd_mailbox *mailbox;
183 u32 *outbox;
184 u8 in_modifier;
185 u8 field;
186 u16 field16;
187 int err;
188
189 #define QUERY_FUNC_BUS_OFFSET 0x00
190 #define QUERY_FUNC_DEVICE_OFFSET 0x01
191 #define QUERY_FUNC_FUNCTION_OFFSET 0x01
192 #define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
193 #define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
194 #define QUERY_FUNC_MAX_EQ_OFFSET 0x06
195 #define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
196
197 mailbox = mlx4_alloc_cmd_mailbox(dev);
198 if (IS_ERR(mailbox))
199 return PTR_ERR(mailbox);
200 outbox = mailbox->buf;
201
202 in_modifier = slave;
203
204 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
205 MLX4_CMD_QUERY_FUNC,
206 MLX4_CMD_TIME_CLASS_A,
207 MLX4_CMD_NATIVE);
208 if (err)
209 goto out;
210
211 MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
212 func->bus = field & 0xf;
213 MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
214 func->device = field & 0xf1;
215 MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
216 func->function = field & 0x7;
217 MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
218 func->physical_function = field & 0xf;
219 MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
220 func->rsvd_eqs = field16 & 0xffff;
221 MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
222 func->max_eq = field16 & 0xffff;
223 MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
224 func->rsvd_uars = field & 0x0f;
225
226 mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
227 func->bus, func->device, func->function, func->physical_function,
228 func->max_eq, func->rsvd_eqs, func->rsvd_uars);
229 out:
230 mlx4_free_cmd_mailbox(dev, mailbox);
231 return err;
232 }
233
mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)234 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
235 struct mlx4_vhcr *vhcr,
236 struct mlx4_cmd_mailbox *inbox,
237 struct mlx4_cmd_mailbox *outbox,
238 struct mlx4_cmd_info *cmd)
239 {
240 struct mlx4_priv *priv = mlx4_priv(dev);
241 u8 field, port;
242 u32 size;
243 int err = 0;
244 struct mlx4_func func;
245
246 #define QUERY_FUNC_CAP_FLAGS_OFFSET 0x0
247 #define QUERY_FUNC_CAP_NUM_PORTS_OFFSET 0x1
248 #define QUERY_FUNC_CAP_PF_BHVR_OFFSET 0x4
249 #define QUERY_FUNC_CAP_FMR_OFFSET 0x8
250 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP 0x10
251 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP 0x14
252 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP 0x18
253 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP 0x20
254 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP 0x24
255 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP 0x28
256 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET 0x2c
257 #define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET 0x30
258
259 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET 0x50
260 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET 0x54
261 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET 0x58
262 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET 0x60
263 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET 0x64
264 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET 0x68
265
266 #define QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET 0x6c
267
268 #define QUERY_FUNC_CAP_FMR_FLAG 0x80
269 #define QUERY_FUNC_CAP_FLAG_RDMA 0x40
270 #define QUERY_FUNC_CAP_FLAG_ETH 0x80
271 #define QUERY_FUNC_CAP_FLAG_QUOTAS 0x10
272 #define QUERY_FUNC_CAP_FLAG_VALID_MAILBOX 0x04
273
274 #define QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG (1UL << 31)
275
276 /* when opcode modifier = 1 */
277 #define QUERY_FUNC_CAP_PHYS_PORT_OFFSET 0x3
278 #define QUERY_FUNC_CAP_FLAGS0_OFFSET 0x8
279 #define QUERY_FUNC_CAP_FLAGS1_OFFSET 0xc
280 #define QUERY_FUNC_CAP_COUNTER_INDEX_OFFSET 0xd
281
282 #define QUERY_FUNC_CAP_QP0_TUNNEL 0x10
283 #define QUERY_FUNC_CAP_QP0_PROXY 0x14
284 #define QUERY_FUNC_CAP_QP1_TUNNEL 0x18
285 #define QUERY_FUNC_CAP_QP1_PROXY 0x1c
286
287 #define QUERY_FUNC_CAP_ETH_PROPS_FORCE_MAC 0x40
288 #define QUERY_FUNC_CAP_ETH_PROPS_FORCE_VLAN 0x80
289 #define QUERY_FUNC_CAP_PROPS_DEF_COUNTER 0x20
290
291 #define QUERY_FUNC_CAP_RDMA_PROPS_FORCE_PHY_WQE_GID 0x80
292 #define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS (1 << 31)
293
294 if (vhcr->op_modifier == 1) {
295 port = vhcr->in_modifier; /* phys-port = logical-port */
296 MLX4_PUT(outbox->buf, port, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
297
298 field = 0;
299 /* ensure that phy_wqe_gid bit is not set */
300 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS0_OFFSET);
301
302 /* ensure force vlan and force mac bits are not set
303 * and that default counter bit is set
304 */
305 field = QUERY_FUNC_CAP_PROPS_DEF_COUNTER; /* def counter */
306 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
307
308 /* There is always default counter legal or sink counter */
309 field = mlx4_get_default_counter_index(dev, slave, vhcr->in_modifier);
310 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_COUNTER_INDEX_OFFSET);
311
312 /* size is now the QP number */
313 size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + port - 1;
314 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
315
316 size += 2;
317 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
318
319 size = dev->phys_caps.base_proxy_sqpn + 8 * slave + port - 1;
320 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_PROXY);
321
322 size += 2;
323 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_PROXY);
324
325 } else if (vhcr->op_modifier == 0) {
326 /* enable rdma and ethernet interfaces, and new quota locations */
327 field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
328 QUERY_FUNC_CAP_FLAG_QUOTAS | QUERY_FUNC_CAP_FLAG_VALID_MAILBOX);
329 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
330
331 field = dev->caps.num_ports;
332 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
333
334 size = dev->caps.function_caps; /* set PF behaviours */
335 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
336
337 field = 0; /* protected FMR support not available as yet */
338 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
339
340 size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
341 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
342 size = dev->caps.num_qps;
343 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
344
345 size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
346 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
347 size = dev->caps.num_srqs;
348 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
349
350 size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
351 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
352 size = dev->caps.num_cqs;
353 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
354
355 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) ||
356 mlx4_QUERY_FUNC(dev, &func, slave)) {
357 size = vhcr->in_modifier &
358 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
359 dev->caps.num_eqs :
360 rounddown_pow_of_two(dev->caps.num_eqs);
361 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
362 size = dev->caps.reserved_eqs;
363 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
364 } else {
365 size = vhcr->in_modifier &
366 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
367 func.max_eq :
368 rounddown_pow_of_two(func.max_eq);
369 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
370 size = func.rsvd_eqs;
371 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
372 }
373
374 size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
375 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
376 size = dev->caps.num_mpts;
377 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
378
379 size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
380 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
381 size = dev->caps.num_mtts;
382 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
383
384 size = dev->caps.num_mgms + dev->caps.num_amgms;
385 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
386 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
387
388 size = QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG;
389 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
390 } else
391 err = -EINVAL;
392
393 return err;
394 }
395
mlx4_QUERY_FUNC_CAP(struct mlx4_dev * dev,u32 gen_or_port,struct mlx4_func_cap * func_cap)396 int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
397 struct mlx4_func_cap *func_cap)
398 {
399 struct mlx4_cmd_mailbox *mailbox;
400 u32 *outbox;
401 u8 field, op_modifier;
402 u32 size;
403 int err = 0, quotas = 0;
404 u32 in_modifier;
405
406 op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
407 in_modifier = op_modifier ? gen_or_port :
408 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
409
410 mailbox = mlx4_alloc_cmd_mailbox(dev);
411 if (IS_ERR(mailbox))
412 return PTR_ERR(mailbox);
413
414 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, op_modifier,
415 MLX4_CMD_QUERY_FUNC_CAP,
416 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
417 if (err)
418 goto out;
419
420 outbox = mailbox->buf;
421
422 if (!op_modifier) {
423 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
424 if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
425 mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
426 err = -EPROTONOSUPPORT;
427 goto out;
428 }
429 func_cap->flags = field;
430 quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
431
432 MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
433 func_cap->num_ports = field;
434
435 MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
436 func_cap->pf_context_behaviour = size;
437
438 if (quotas) {
439 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
440 func_cap->qp_quota = size & 0xFFFFFF;
441
442 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
443 func_cap->srq_quota = size & 0xFFFFFF;
444
445 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
446 func_cap->cq_quota = size & 0xFFFFFF;
447
448 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
449 func_cap->mpt_quota = size & 0xFFFFFF;
450
451 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
452 func_cap->mtt_quota = size & 0xFFFFFF;
453
454 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
455 func_cap->mcg_quota = size & 0xFFFFFF;
456
457 } else {
458 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
459 func_cap->qp_quota = size & 0xFFFFFF;
460
461 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
462 func_cap->srq_quota = size & 0xFFFFFF;
463
464 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
465 func_cap->cq_quota = size & 0xFFFFFF;
466
467 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
468 func_cap->mpt_quota = size & 0xFFFFFF;
469
470 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
471 func_cap->mtt_quota = size & 0xFFFFFF;
472
473 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
474 func_cap->mcg_quota = size & 0xFFFFFF;
475 }
476 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
477 func_cap->max_eq = size & 0xFFFFFF;
478
479 MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
480 func_cap->reserved_eq = size & 0xFFFFFF;
481
482 func_cap->extra_flags = 0;
483
484 /* Mailbox data from 0x6c and onward should only be treated if
485 * QUERY_FUNC_CAP_FLAG_VALID_MAILBOX is set in func_cap->flags
486 */
487 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_VALID_MAILBOX) {
488 MLX4_GET(size, outbox, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
489 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG)
490 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_BF_RES_QP;
491 }
492
493 goto out;
494 }
495
496 /* logical port query */
497 if (gen_or_port > dev->caps.num_ports) {
498 err = -EINVAL;
499 goto out;
500 }
501
502 if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
503 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
504 if (field & QUERY_FUNC_CAP_ETH_PROPS_FORCE_VLAN) {
505 mlx4_err(dev, "VLAN is enforced on this port\n");
506 err = -EPROTONOSUPPORT;
507 goto out;
508 }
509
510 if (field & QUERY_FUNC_CAP_ETH_PROPS_FORCE_MAC) {
511 mlx4_err(dev, "Force mac is enabled on this port\n");
512 err = -EPROTONOSUPPORT;
513 goto out;
514 }
515 } else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
516 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
517 if (field & QUERY_FUNC_CAP_RDMA_PROPS_FORCE_PHY_WQE_GID) {
518 mlx4_err(dev, "phy_wqe_gid is "
519 "enforced on this ib port\n");
520 err = -EPROTONOSUPPORT;
521 goto out;
522 }
523 }
524
525 MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
526 func_cap->physical_port = field;
527 if (func_cap->physical_port != gen_or_port) {
528 err = -ENOSYS;
529 goto out;
530 }
531
532 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
533 if (field & QUERY_FUNC_CAP_PROPS_DEF_COUNTER) {
534 MLX4_GET(field, outbox, QUERY_FUNC_CAP_COUNTER_INDEX_OFFSET);
535 func_cap->def_counter_index = field;
536 } else {
537 func_cap->def_counter_index = MLX4_SINK_COUNTER_INDEX;
538 }
539
540 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
541 func_cap->qp0_tunnel_qpn = size & 0xFFFFFF;
542
543 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
544 func_cap->qp0_proxy_qpn = size & 0xFFFFFF;
545
546 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
547 func_cap->qp1_tunnel_qpn = size & 0xFFFFFF;
548
549 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
550 func_cap->qp1_proxy_qpn = size & 0xFFFFFF;
551
552 /* All other resources are allocated by the master, but we still report
553 * 'num' and 'reserved' capabilities as follows:
554 * - num remains the maximum resource index
555 * - 'num - reserved' is the total available objects of a resource, but
556 * resource indices may be less than 'reserved'
557 * TODO: set per-resource quotas */
558
559 out:
560 mlx4_free_cmd_mailbox(dev, mailbox);
561
562 return err;
563 }
564
mlx4_QUERY_DEV_CAP(struct mlx4_dev * dev,struct mlx4_dev_cap * dev_cap)565 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
566 {
567 struct mlx4_cmd_mailbox *mailbox;
568 u32 *outbox;
569 u8 field;
570 u32 field32, flags, ext_flags;
571 u16 size;
572 u16 stat_rate;
573 int err;
574 int i;
575
576 #define QUERY_DEV_CAP_OUT_SIZE 0x100
577 #define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
578 #define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
579 #define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
580 #define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
581 #define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
582 #define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
583 #define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
584 #define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
585 #define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
586 #define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
587 #define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
588 #define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
589 #define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
590 #define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
591 #define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
592 #define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
593 #define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
594 #define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
595 #define QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET 0x26
596 #define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
597 #define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
598 #define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
599 #define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
600 #define QUERY_DEV_CAP_RSS_OFFSET 0x2e
601 #define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
602 #define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
603 #define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
604 #define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
605 #define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
606 #define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
607 #define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
608 #define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
609 #define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET 0x3e
610 #define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
611 #define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
612 #define QUERY_DEV_CAP_SYNC_QP_OFFSET 0x42
613 #define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
614 #define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
615 #define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
616 #define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
617 #define QUERY_DEV_CAP_BF_OFFSET 0x4c
618 #define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
619 #define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
620 #define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
621 #define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
622 #define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
623 #define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
624 #define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
625 #define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
626 #define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
627 #define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
628 #define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
629 #define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
630 #define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
631 #define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
632 #define QUERY_DEV_CAP_MAX_BASIC_COUNTERS_OFFSET 0x68
633 #define QUERY_DEV_CAP_MAX_EXTENDED_COUNTERS_OFFSET 0x6c
634 #define QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET 0x70
635 #define QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET 0x76
636 #define QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET 0x70
637 #define QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET 0x74
638 #define QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET 0x77
639 #define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
640 #define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
641 #define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
642 #define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
643 #define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
644 #define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
645 #define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
646 #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
647 #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
648 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
649 #define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
650 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
651 #define QUERY_DEV_CAP_ETS_CFG_OFFSET 0x9c
652 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
653
654 dev_cap->flags2 = 0;
655 mailbox = mlx4_alloc_cmd_mailbox(dev);
656 if (IS_ERR(mailbox))
657 return PTR_ERR(mailbox);
658 outbox = mailbox->buf;
659
660 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
661 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
662 if (err)
663 goto out;
664
665 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
666 dev_cap->reserved_qps = 1 << (field & 0xf);
667 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
668 dev_cap->max_qps = 1 << (field & 0x1f);
669 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
670 dev_cap->reserved_srqs = 1 << (field >> 4);
671 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
672 dev_cap->max_srqs = 1 << (field & 0x1f);
673 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
674 dev_cap->max_cq_sz = 1 << field;
675 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
676 dev_cap->reserved_cqs = 1 << (field & 0xf);
677 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
678 dev_cap->max_cqs = 1 << (field & 0x1f);
679 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
680 dev_cap->max_mpts = 1 << (field & 0x3f);
681 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
682 dev_cap->reserved_eqs = field & 0xf;
683 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
684 dev_cap->max_eqs = 1 << (field & 0xf);
685 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
686 dev_cap->reserved_mtts = 1 << (field >> 4);
687 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
688 dev_cap->max_mrw_sz = 1 << field;
689 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
690 dev_cap->reserved_mrws = 1 << (field & 0xf);
691 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
692 dev_cap->max_mtt_seg = 1 << (field & 0x3f);
693 MLX4_GET(size, outbox, QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET);
694 dev_cap->num_sys_eqs = size & 0xfff;
695 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
696 dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
697 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
698 dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
699 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
700 field &= 0x1f;
701 if (!field)
702 dev_cap->max_gso_sz = 0;
703 else
704 dev_cap->max_gso_sz = 1 << field;
705
706 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSS_OFFSET);
707 if (field & 0x20)
708 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_XOR;
709 if (field & 0x10)
710 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_TOP;
711 field &= 0xf;
712 if (field) {
713 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS;
714 dev_cap->max_rss_tbl_sz = 1 << field;
715 } else
716 dev_cap->max_rss_tbl_sz = 0;
717 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
718 dev_cap->max_rdma_global = 1 << (field & 0x3f);
719 MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
720 dev_cap->local_ca_ack_delay = field & 0x1f;
721 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
722 dev_cap->num_ports = field & 0xf;
723 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
724 dev_cap->max_msg_sz = 1 << (field & 0x1f);
725 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET);
726 if (field & 0x10)
727 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN;
728 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
729 if (field & 0x80)
730 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FS_EN;
731 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
732 if (field & 0x80)
733 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_IPOIB;
734 dev_cap->fs_log_max_ucast_qp_range_size = field & 0x1f;
735 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET);
736 dev_cap->fs_max_num_qp_per_entry = field;
737 MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
738 dev_cap->stat_rate_support = stat_rate;
739 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
740 if (field & 0x80)
741 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;
742 MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
743 MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
744 dev_cap->flags = flags | (u64)ext_flags << 32;
745 MLX4_GET(field, outbox, QUERY_DEV_CAP_SYNC_QP_OFFSET);
746 dev_cap->sync_qp = field & 0x10;
747 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
748 dev_cap->reserved_uars = field >> 4;
749 MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
750 dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
751 MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
752 dev_cap->min_page_sz = 1 << field;
753
754 MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
755 if (field & 0x80) {
756 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
757 dev_cap->bf_reg_size = 1 << (field & 0x1f);
758 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
759 if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
760 field = 3;
761 dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
762 mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
763 dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
764 } else {
765 dev_cap->bf_reg_size = 0;
766 mlx4_dbg(dev, "BlueFlame not available\n");
767 }
768
769 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
770 dev_cap->max_sq_sg = field;
771 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
772 dev_cap->max_sq_desc_sz = size;
773
774 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
775 dev_cap->max_qp_per_mcg = 1 << field;
776 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
777 dev_cap->reserved_mgms = field & 0xf;
778 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
779 dev_cap->max_mcgs = 1 << field;
780 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
781 dev_cap->reserved_pds = field >> 4;
782 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
783 dev_cap->max_pds = 1 << (field & 0x3f);
784 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
785 dev_cap->reserved_xrcds = field >> 4;
786 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
787 dev_cap->max_xrcds = 1 << (field & 0x1f);
788
789 MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
790 dev_cap->rdmarc_entry_sz = size;
791 MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
792 dev_cap->qpc_entry_sz = size;
793 MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
794 dev_cap->aux_entry_sz = size;
795 MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
796 dev_cap->altc_entry_sz = size;
797 MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
798 dev_cap->eqc_entry_sz = size;
799 MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
800 dev_cap->cqc_entry_sz = size;
801 MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
802 dev_cap->srq_entry_sz = size;
803 MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
804 dev_cap->cmpt_entry_sz = size;
805 MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
806 dev_cap->mtt_entry_sz = size;
807 MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
808 dev_cap->dmpt_entry_sz = size;
809
810 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
811 dev_cap->max_srq_sz = 1 << field;
812 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
813 dev_cap->max_qp_sz = 1 << field;
814 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
815 dev_cap->resize_srq = field & 1;
816 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
817 dev_cap->max_rq_sg = field;
818 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
819 dev_cap->max_rq_desc_sz = size;
820
821 MLX4_GET(dev_cap->bmme_flags, outbox,
822 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
823 MLX4_GET(dev_cap->reserved_lkey, outbox,
824 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
825 MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETS_CFG_OFFSET);
826 if (field32 & (1 << 0))
827 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
828 if (field32 & (1 << 7))
829 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT;
830 if (field32 & (1 << 8))
831 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DRIVER_VERSION_TO_FW;
832 if (field32 & (1 << 13))
833 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
834
835 MLX4_GET(dev_cap->max_icm_sz, outbox,
836 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
837 if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
838 MLX4_GET(dev_cap->max_basic_counters, outbox,
839 QUERY_DEV_CAP_MAX_BASIC_COUNTERS_OFFSET);
840 /* FW reports 256 however real value is 255 */
841 dev_cap->max_basic_counters = min_t(u32, dev_cap->max_basic_counters, 255);
842 if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS_EXT)
843 MLX4_GET(dev_cap->max_extended_counters, outbox,
844 QUERY_DEV_CAP_MAX_EXTENDED_COUNTERS_OFFSET);
845
846 MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
847 if (field32 & (1 << 16))
848 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
849 if (field32 & (1 << 19))
850 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_LB_SRC_CHK;
851 if (field32 & (1 << 20))
852 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FSM;
853 if (field32 & (1 << 26))
854 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
855
856 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
857 for (i = 1; i <= dev_cap->num_ports; ++i) {
858 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
859 dev_cap->max_vl[i] = field >> 4;
860 MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
861 dev_cap->ib_mtu[i] = field >> 4;
862 dev_cap->max_port_width[i] = field & 0xf;
863 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
864 dev_cap->max_gids[i] = 1 << (field & 0xf);
865 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
866 dev_cap->max_pkeys[i] = 1 << (field & 0xf);
867 }
868 } else {
869 #define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
870 #define QUERY_PORT_MTU_OFFSET 0x01
871 #define QUERY_PORT_ETH_MTU_OFFSET 0x02
872 #define QUERY_PORT_WIDTH_OFFSET 0x06
873 #define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
874 #define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
875 #define QUERY_PORT_MAX_VL_OFFSET 0x0b
876 #define QUERY_PORT_MAC_OFFSET 0x10
877 #define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
878 #define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
879 #define QUERY_PORT_TRANS_CODE_OFFSET 0x20
880
881 for (i = 1; i <= dev_cap->num_ports; ++i) {
882 err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT,
883 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
884 if (err)
885 goto out;
886
887 MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
888 dev_cap->supported_port_types[i] = field & 3;
889 dev_cap->suggested_type[i] = (field >> 3) & 1;
890 dev_cap->default_sense[i] = (field >> 4) & 1;
891 MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
892 dev_cap->ib_mtu[i] = field & 0xf;
893 MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
894 dev_cap->max_port_width[i] = field & 0xf;
895 MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
896 dev_cap->max_gids[i] = 1 << (field >> 4);
897 dev_cap->max_pkeys[i] = 1 << (field & 0xf);
898 MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
899 dev_cap->max_vl[i] = field & 0xf;
900 MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
901 dev_cap->log_max_macs[i] = field & 0xf;
902 dev_cap->log_max_vlans[i] = field >> 4;
903 MLX4_GET(dev_cap->eth_mtu[i], outbox, QUERY_PORT_ETH_MTU_OFFSET);
904 MLX4_GET(dev_cap->def_mac[i], outbox, QUERY_PORT_MAC_OFFSET);
905 MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
906 dev_cap->trans_type[i] = field32 >> 24;
907 dev_cap->vendor_oui[i] = field32 & 0xffffff;
908 MLX4_GET(dev_cap->wavelength[i], outbox, QUERY_PORT_WAVELENGTH_OFFSET);
909 MLX4_GET(dev_cap->trans_code[i], outbox, QUERY_PORT_TRANS_CODE_OFFSET);
910 }
911 }
912
913 mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
914 dev_cap->bmme_flags, dev_cap->reserved_lkey);
915
916 /*
917 * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
918 * we can't use any EQs whose doorbell falls on that page,
919 * even if the EQ itself isn't reserved.
920 */
921 if (dev_cap->num_sys_eqs == 0)
922 dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
923 dev_cap->reserved_eqs);
924 else
925 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
926
927 mlx4_dbg(dev, "Max ICM size %lld MB\n",
928 (unsigned long long) dev_cap->max_icm_sz >> 20);
929 mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
930 dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
931 mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
932 dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
933 mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
934 dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
935 mlx4_dbg(dev, "Num sys EQs: %d, max EQs: %d, reserved EQs: %d, entry size: %d\n",
936 dev_cap->num_sys_eqs, dev_cap->max_eqs, dev_cap->reserved_eqs,
937 dev_cap->eqc_entry_sz);
938 mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
939 dev_cap->reserved_mrws, dev_cap->reserved_mtts);
940 mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
941 dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
942 mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
943 dev_cap->max_pds, dev_cap->reserved_mgms);
944 mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
945 dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
946 mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
947 dev_cap->local_ca_ack_delay, 128 << dev_cap->ib_mtu[1],
948 dev_cap->max_port_width[1]);
949 mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
950 dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
951 mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
952 dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
953 mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
954 mlx4_dbg(dev, "Max basic counters: %d\n", dev_cap->max_basic_counters);
955 mlx4_dbg(dev, "Max extended counters: %d\n", dev_cap->max_extended_counters);
956 mlx4_dbg(dev, "Max RSS Table size: %d\n", dev_cap->max_rss_tbl_sz);
957
958 dump_dev_cap_flags(dev, dev_cap->flags);
959 dump_dev_cap_flags2(dev, dev_cap->flags2);
960
961 out:
962 mlx4_free_cmd_mailbox(dev, mailbox);
963 return err;
964 }
965
mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)966 int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
967 struct mlx4_vhcr *vhcr,
968 struct mlx4_cmd_mailbox *inbox,
969 struct mlx4_cmd_mailbox *outbox,
970 struct mlx4_cmd_info *cmd)
971 {
972 u64 flags;
973 int err = 0;
974 u8 field;
975
976 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
977 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
978 if (err)
979 return err;
980
981 /* add port mng change event capability unconditionally to slaves */
982 MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
983 flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
984 MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
985
986 /* For guests, report Blueflame disabled */
987 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
988 field &= 0x7f;
989 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
990
991 /* turn off device-managed steering capability if not enabled */
992 if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
993 MLX4_GET(field, outbox->buf,
994 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
995 field &= 0x7f;
996 MLX4_PUT(outbox->buf, field,
997 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
998 }
999 return 0;
1000 }
1001
mlx4_QUERY_PORT_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1002 int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
1003 struct mlx4_vhcr *vhcr,
1004 struct mlx4_cmd_mailbox *inbox,
1005 struct mlx4_cmd_mailbox *outbox,
1006 struct mlx4_cmd_info *cmd)
1007 {
1008 struct mlx4_priv *priv = mlx4_priv(dev);
1009 u64 def_mac;
1010 u8 port_type;
1011 u16 short_field;
1012 int err;
1013 int admin_link_state;
1014
1015 #define MLX4_VF_PORT_NO_LINK_SENSE_MASK 0xE0
1016 #define MLX4_PORT_LINK_UP_MASK 0x80
1017 #define QUERY_PORT_CUR_MAX_PKEY_OFFSET 0x0c
1018 #define QUERY_PORT_CUR_MAX_GID_OFFSET 0x0e
1019
1020 err = mlx4_cmd_box(dev, 0, outbox->dma, vhcr->in_modifier, 0,
1021 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1022 MLX4_CMD_NATIVE);
1023
1024 if (!err && dev->caps.function != slave) {
1025 /* set slave default_mac address to be zero MAC */
1026 def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac;
1027 MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET);
1028
1029 /* get port type - currently only eth is enabled */
1030 MLX4_GET(port_type, outbox->buf,
1031 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1032
1033 /* No link sensing allowed */
1034 port_type &= MLX4_VF_PORT_NO_LINK_SENSE_MASK;
1035 /* set port type to currently operating port type */
1036 port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
1037
1038 admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
1039 if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
1040 port_type |= MLX4_PORT_LINK_UP_MASK;
1041 else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
1042 port_type &= ~MLX4_PORT_LINK_UP_MASK;
1043
1044 MLX4_PUT(outbox->buf, port_type,
1045 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1046
1047 if (dev->caps.port_type[vhcr->in_modifier] == MLX4_PORT_TYPE_ETH)
1048 short_field = mlx4_get_slave_num_gids(dev, slave);
1049 else
1050 short_field = 1; /* slave max gids */
1051 MLX4_PUT(outbox->buf, short_field,
1052 QUERY_PORT_CUR_MAX_GID_OFFSET);
1053
1054 short_field = dev->caps.pkey_table_len[vhcr->in_modifier];
1055 MLX4_PUT(outbox->buf, short_field,
1056 QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1057 }
1058
1059 return err;
1060 }
1061
mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev * dev,u8 port,int * gid_tbl_len,int * pkey_tbl_len)1062 int mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev *dev, u8 port,
1063 int *gid_tbl_len, int *pkey_tbl_len)
1064 {
1065 struct mlx4_cmd_mailbox *mailbox;
1066 u32 *outbox;
1067 u16 field;
1068 int err;
1069
1070 mailbox = mlx4_alloc_cmd_mailbox(dev);
1071 if (IS_ERR(mailbox))
1072 return PTR_ERR(mailbox);
1073
1074 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0,
1075 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1076 MLX4_CMD_WRAPPED);
1077 if (err)
1078 goto out;
1079
1080 outbox = mailbox->buf;
1081
1082 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_GID_OFFSET);
1083 *gid_tbl_len = field;
1084
1085 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1086 *pkey_tbl_len = field;
1087
1088 out:
1089 mlx4_free_cmd_mailbox(dev, mailbox);
1090 return err;
1091 }
1092 EXPORT_SYMBOL(mlx4_get_slave_pkey_gid_tbl_len);
1093
mlx4_map_cmd(struct mlx4_dev * dev,u16 op,struct mlx4_icm * icm,u64 virt)1094 int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
1095 {
1096 struct mlx4_cmd_mailbox *mailbox;
1097 struct mlx4_icm_iter iter;
1098 __be64 *pages;
1099 int lg;
1100 int nent = 0;
1101 int i;
1102 int err = 0;
1103 int ts = 0, tc = 0;
1104
1105 mailbox = mlx4_alloc_cmd_mailbox(dev);
1106 if (IS_ERR(mailbox))
1107 return PTR_ERR(mailbox);
1108 memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
1109 pages = mailbox->buf;
1110
1111 for (mlx4_icm_first(icm, &iter);
1112 !mlx4_icm_last(&iter);
1113 mlx4_icm_next(&iter)) {
1114 /*
1115 * We have to pass pages that are aligned to their
1116 * size, so find the least significant 1 in the
1117 * address or size and use that as our log2 size.
1118 */
1119 lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
1120 if (lg < MLX4_ICM_PAGE_SHIFT) {
1121 mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n",
1122 MLX4_ICM_PAGE_SIZE,
1123 (unsigned long long) mlx4_icm_addr(&iter),
1124 mlx4_icm_size(&iter));
1125 err = -EINVAL;
1126 goto out;
1127 }
1128
1129 for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
1130 if (virt != -1) {
1131 pages[nent * 2] = cpu_to_be64(virt);
1132 virt += 1 << lg;
1133 }
1134
1135 pages[nent * 2 + 1] =
1136 cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
1137 (lg - MLX4_ICM_PAGE_SHIFT));
1138 ts += 1 << (lg - 10);
1139 ++tc;
1140
1141 if (++nent == MLX4_MAILBOX_SIZE / 16) {
1142 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1143 MLX4_CMD_TIME_CLASS_B,
1144 MLX4_CMD_NATIVE);
1145 if (err)
1146 goto out;
1147 nent = 0;
1148 }
1149 }
1150 }
1151
1152 if (nent)
1153 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1154 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1155 if (err)
1156 goto out;
1157
1158 switch (op) {
1159 case MLX4_CMD_MAP_FA:
1160 mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
1161 break;
1162 case MLX4_CMD_MAP_ICM_AUX:
1163 mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
1164 break;
1165 case MLX4_CMD_MAP_ICM:
1166 mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
1167 tc, ts, (unsigned long long) virt - (ts << 10));
1168 break;
1169 }
1170
1171 out:
1172 mlx4_free_cmd_mailbox(dev, mailbox);
1173 return err;
1174 }
1175
mlx4_MAP_FA(struct mlx4_dev * dev,struct mlx4_icm * icm)1176 int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
1177 {
1178 return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
1179 }
1180
mlx4_UNMAP_FA(struct mlx4_dev * dev)1181 int mlx4_UNMAP_FA(struct mlx4_dev *dev)
1182 {
1183 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA,
1184 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1185 }
1186
1187
mlx4_RUN_FW(struct mlx4_dev * dev)1188 int mlx4_RUN_FW(struct mlx4_dev *dev)
1189 {
1190 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW,
1191 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1192 }
1193
mlx4_QUERY_FW(struct mlx4_dev * dev)1194 int mlx4_QUERY_FW(struct mlx4_dev *dev)
1195 {
1196 struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
1197 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
1198 struct mlx4_cmd_mailbox *mailbox;
1199 u32 *outbox;
1200 int err = 0;
1201 u64 fw_ver;
1202 u16 cmd_if_rev;
1203 u8 lg;
1204
1205 #define QUERY_FW_OUT_SIZE 0x100
1206 #define QUERY_FW_VER_OFFSET 0x00
1207 #define QUERY_FW_PPF_ID 0x09
1208 #define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
1209 #define QUERY_FW_MAX_CMD_OFFSET 0x0f
1210 #define QUERY_FW_ERR_START_OFFSET 0x30
1211 #define QUERY_FW_ERR_SIZE_OFFSET 0x38
1212 #define QUERY_FW_ERR_BAR_OFFSET 0x3c
1213
1214 #define QUERY_FW_SIZE_OFFSET 0x00
1215 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
1216 #define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
1217
1218 #define QUERY_FW_COMM_BASE_OFFSET 0x40
1219 #define QUERY_FW_COMM_BAR_OFFSET 0x48
1220
1221 #define QUERY_FW_CLOCK_OFFSET 0x50
1222 #define QUERY_FW_CLOCK_BAR 0x58
1223
1224 mailbox = mlx4_alloc_cmd_mailbox(dev);
1225 if (IS_ERR(mailbox))
1226 return PTR_ERR(mailbox);
1227 outbox = mailbox->buf;
1228
1229 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1230 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1231 if (err)
1232 goto out;
1233
1234 MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
1235 /*
1236 * FW subminor version is at more significant bits than minor
1237 * version, so swap here.
1238 */
1239 dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
1240 ((fw_ver & 0xffff0000ull) >> 16) |
1241 ((fw_ver & 0x0000ffffull) << 16);
1242
1243 MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
1244 dev->caps.function = lg;
1245
1246 if (mlx4_is_slave(dev))
1247 goto out;
1248
1249
1250 MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
1251 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
1252 cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
1253 mlx4_err(dev, "Installed FW has unsupported "
1254 "command interface revision %d.\n",
1255 cmd_if_rev);
1256 mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
1257 (int) (dev->caps.fw_ver >> 32),
1258 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1259 (int) dev->caps.fw_ver & 0xffff);
1260 mlx4_err(dev, "This driver version supports only revisions %d to %d.\n",
1261 MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
1262 err = -ENODEV;
1263 goto out;
1264 }
1265
1266 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
1267 dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
1268
1269 MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
1270 cmd->max_cmds = 1 << lg;
1271
1272 mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
1273 (int) (dev->caps.fw_ver >> 32),
1274 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1275 (int) dev->caps.fw_ver & 0xffff,
1276 cmd_if_rev, cmd->max_cmds);
1277
1278 MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
1279 MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
1280 MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
1281 fw->catas_bar = (fw->catas_bar >> 6) * 2;
1282
1283 mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
1284 (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
1285
1286 MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
1287 MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
1288 MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
1289 fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
1290
1291 MLX4_GET(fw->comm_base, outbox, QUERY_FW_COMM_BASE_OFFSET);
1292 MLX4_GET(fw->comm_bar, outbox, QUERY_FW_COMM_BAR_OFFSET);
1293 fw->comm_bar = (fw->comm_bar >> 6) * 2;
1294 mlx4_dbg(dev, "Communication vector bar:%d offset:0x%llx\n",
1295 fw->comm_bar, (unsigned long long)fw->comm_base);
1296 mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
1297
1298 MLX4_GET(fw->clock_offset, outbox, QUERY_FW_CLOCK_OFFSET);
1299 MLX4_GET(fw->clock_bar, outbox, QUERY_FW_CLOCK_BAR);
1300 fw->clock_bar = (fw->clock_bar >> 6) * 2;
1301 mlx4_dbg(dev, "Internal clock bar:%d offset:0x%llx\n",
1302 fw->comm_bar, (unsigned long long)fw->comm_base);
1303
1304 /*
1305 * Round up number of system pages needed in case
1306 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
1307 */
1308 fw->fw_pages =
1309 ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
1310 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
1311
1312 mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
1313 (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
1314
1315 out:
1316 mlx4_free_cmd_mailbox(dev, mailbox);
1317 return err;
1318 }
1319
mlx4_QUERY_FW_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1320 int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
1321 struct mlx4_vhcr *vhcr,
1322 struct mlx4_cmd_mailbox *inbox,
1323 struct mlx4_cmd_mailbox *outbox,
1324 struct mlx4_cmd_info *cmd)
1325 {
1326 u8 *outbuf;
1327 int err;
1328
1329 outbuf = outbox->buf;
1330 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1331 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1332 if (err)
1333 return err;
1334
1335 /* for slaves, set pci PPF ID to invalid and zero out everything
1336 * else except FW version */
1337 outbuf[0] = outbuf[1] = 0;
1338 memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
1339 outbuf[QUERY_FW_PPF_ID] = MLX4_INVALID_SLAVE_ID;
1340
1341 return 0;
1342 }
1343
get_board_id(void * vsd,char * board_id,char * vsdstr)1344 static void get_board_id(void *vsd, char *board_id, char *vsdstr)
1345 {
1346 int i;
1347
1348 #define VSD_OFFSET_SIG1 0x00
1349 #define VSD_OFFSET_SIG2 0xde
1350 #define VSD_OFFSET_MLX_BOARD_ID 0xd0
1351 #define VSD_OFFSET_TS_BOARD_ID 0x20
1352 #define VSD_LEN 0xd0
1353
1354 #define VSD_SIGNATURE_TOPSPIN 0x5ad
1355
1356 memset(vsdstr, 0, MLX4_VSD_LEN);
1357
1358 for (i = 0; i < VSD_LEN / 4; i++)
1359 ((u32 *)vsdstr)[i] =
1360 swab32(*(u32 *)(vsd + i * 4));
1361
1362 memset(board_id, 0, MLX4_BOARD_ID_LEN);
1363
1364 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1365 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1366 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
1367 } else {
1368 /*
1369 * The board ID is a string but the firmware byte
1370 * swaps each 4-byte word before passing it back to
1371 * us. Therefore we need to swab it before printing.
1372 */
1373 for (i = 0; i < 4; ++i)
1374 ((u32 *) board_id)[i] =
1375 swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
1376 }
1377 }
1378
mlx4_QUERY_ADAPTER(struct mlx4_dev * dev,struct mlx4_adapter * adapter)1379 int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
1380 {
1381 struct mlx4_cmd_mailbox *mailbox;
1382 u32 *outbox;
1383 int err;
1384
1385 #define QUERY_ADAPTER_OUT_SIZE 0x100
1386 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
1387 #define QUERY_ADAPTER_VSD_OFFSET 0x20
1388 #define QUERY_ADAPTER_VSD_VENDOR_ID_OFFSET 0x1e
1389
1390 mailbox = mlx4_alloc_cmd_mailbox(dev);
1391 if (IS_ERR(mailbox))
1392 return PTR_ERR(mailbox);
1393 outbox = mailbox->buf;
1394
1395 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
1396 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1397 if (err)
1398 goto out;
1399
1400 MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1401
1402 adapter->vsd_vendor_id = be16_to_cpup((u16 *)outbox +
1403 QUERY_ADAPTER_VSD_VENDOR_ID_OFFSET / 2);
1404
1405 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1406 adapter->board_id, adapter->vsd);
1407
1408 out:
1409 mlx4_free_cmd_mailbox(dev, mailbox);
1410 return err;
1411 }
1412
mlx4_INIT_HCA(struct mlx4_dev * dev,struct mlx4_init_hca_param * param)1413 int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
1414 {
1415 struct mlx4_cmd_mailbox *mailbox;
1416 __be32 *inbox;
1417 u32 mw_enable;
1418 int err;
1419
1420 #define INIT_HCA_IN_SIZE 0x200
1421 #define INIT_HCA_DRV_NAME_FOR_FW_MAX_SIZE 64
1422 #define INIT_HCA_VERSION_OFFSET 0x000
1423 #define INIT_HCA_VERSION 2
1424 #define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
1425 #define INIT_HCA_FLAGS_OFFSET 0x014
1426 #define INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET 0x018
1427 #define INIT_HCA_QPC_OFFSET 0x020
1428 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1429 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1430 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1431 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1432 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1433 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1434 #define INIT_HCA_EQE_CQE_OFFSETS (INIT_HCA_QPC_OFFSET + 0x38)
1435 #define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1436 #define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1437 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1438 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1439 #define INIT_HCA_NUM_SYS_EQS_OFFSET (INIT_HCA_QPC_OFFSET + 0x6a)
1440 #define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1441 #define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
1442 #define INIT_HCA_MCAST_OFFSET 0x0c0
1443 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1444 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1445 #define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
1446 #define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
1447 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1448 #define INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN 0x6
1449 #define INIT_HCA_DRIVER_VERSION_OFFSET 0x140
1450 #define INIT_HCA_FS_PARAM_OFFSET 0x1d0
1451 #define INIT_HCA_FS_BASE_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x00)
1452 #define INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x12)
1453 #define INIT_HCA_FS_LOG_TABLE_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x1b)
1454 #define INIT_HCA_FS_ETH_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x21)
1455 #define INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x22)
1456 #define INIT_HCA_FS_IB_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x25)
1457 #define INIT_HCA_FS_IB_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x26)
1458 #define INIT_HCA_TPT_OFFSET 0x0f0
1459 #define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1460 #define INIT_HCA_TPT_MW_OFFSET (INIT_HCA_TPT_OFFSET + 0x08)
1461 #define INIT_HCA_TPT_MW_ENABLE (1 << 31)
1462 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1463 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1464 #define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
1465 #define INIT_HCA_UAR_OFFSET 0x120
1466 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1467 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1468
1469 mailbox = mlx4_alloc_cmd_mailbox(dev);
1470 if (IS_ERR(mailbox))
1471 return PTR_ERR(mailbox);
1472 inbox = mailbox->buf;
1473
1474 memset(inbox, 0, INIT_HCA_IN_SIZE);
1475
1476 *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
1477
1478 *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
1479 ((ilog2(cache_line_size()) - 4) << 5) | (1 << 4);
1480
1481 #if defined(__LITTLE_ENDIAN)
1482 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1483 #elif defined(__BIG_ENDIAN)
1484 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1485 #else
1486 #error Host endianness not defined
1487 #endif
1488 /* Check port for UD address vector: */
1489 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1490
1491 /* Enable IPoIB checksumming if we can: */
1492 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
1493 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
1494
1495 /* Enable QoS support if module parameter set */
1496 if (enable_qos)
1497 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
1498
1499 /* Enable fast drop performance optimization */
1500 if (dev->caps.fast_drop)
1501 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 7);
1502
1503 /* enable counters */
1504 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1505 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
1506
1507 /* CX3 is capable of extending CQEs\EQEs from 32 to 64 bytes */
1508 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_EQE) {
1509 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 29);
1510 dev->caps.eqe_size = 64;
1511 dev->caps.eqe_factor = 1;
1512 } else {
1513 dev->caps.eqe_size = 32;
1514 dev->caps.eqe_factor = 0;
1515 }
1516
1517 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_CQE) {
1518 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 30);
1519 dev->caps.cqe_size = 64;
1520 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_64B_CQE;
1521 } else {
1522 dev->caps.cqe_size = 32;
1523 }
1524
1525 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT)
1526 *(inbox + INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET / 4) |= cpu_to_be32(1 << 31);
1527
1528 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DRIVER_VERSION_TO_FW) {
1529 strncpy((u8 *)mailbox->buf + INIT_HCA_DRIVER_VERSION_OFFSET,
1530 DRV_NAME_FOR_FW,
1531 INIT_HCA_DRV_NAME_FOR_FW_MAX_SIZE - 1);
1532 mlx4_dbg(dev, "Reporting Driver Version to FW: %s\n",
1533 (u8 *)mailbox->buf + INIT_HCA_DRIVER_VERSION_OFFSET);
1534 }
1535
1536 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1537
1538 MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1539 MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1540 MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1541 MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1542 MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1543 MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1544 MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
1545 MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
1546 MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1547 MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1548 MLX4_PUT(inbox, param->num_sys_eqs, INIT_HCA_NUM_SYS_EQS_OFFSET);
1549 MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
1550 MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
1551
1552 /* steering attributes */
1553 if (dev->caps.steering_mode ==
1554 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1555 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |=
1556 cpu_to_be32(1 <<
1557 INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN);
1558
1559 MLX4_PUT(inbox, param->mc_base, INIT_HCA_FS_BASE_OFFSET);
1560 MLX4_PUT(inbox, param->log_mc_entry_sz,
1561 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
1562 MLX4_PUT(inbox, param->log_mc_table_sz,
1563 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
1564 /* Enable Ethernet flow steering
1565 * with udp unicast and tcp unicast
1566 */
1567 MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1568 INIT_HCA_FS_ETH_BITS_OFFSET);
1569 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1570 INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET);
1571 /* Enable IPoIB flow steering
1572 * with udp unicast and tcp unicast
1573 */
1574 MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1575 INIT_HCA_FS_IB_BITS_OFFSET);
1576 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1577 INIT_HCA_FS_IB_NUM_ADDRS_OFFSET);
1578 } else {
1579 MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
1580 MLX4_PUT(inbox, param->log_mc_entry_sz,
1581 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1582 MLX4_PUT(inbox, param->log_mc_hash_sz,
1583 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
1584 MLX4_PUT(inbox, param->log_mc_table_sz,
1585 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1586 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0)
1587 MLX4_PUT(inbox, (u8) (1 << 3),
1588 INIT_HCA_UC_STEERING_OFFSET);
1589 }
1590
1591 /* TPT attributes */
1592
1593 MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
1594 mw_enable = param->mw_enable ? INIT_HCA_TPT_MW_ENABLE : 0;
1595 MLX4_PUT(inbox, mw_enable, INIT_HCA_TPT_MW_OFFSET);
1596 MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
1597 MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
1598 MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
1599
1600 /* UAR attributes */
1601
1602 MLX4_PUT(inbox, param->uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1603 MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
1604
1605 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 10000,
1606 MLX4_CMD_NATIVE);
1607
1608 if (err)
1609 mlx4_err(dev, "INIT_HCA returns %d\n", err);
1610
1611 mlx4_free_cmd_mailbox(dev, mailbox);
1612 return err;
1613 }
1614
mlx4_QUERY_HCA(struct mlx4_dev * dev,struct mlx4_init_hca_param * param)1615 int mlx4_QUERY_HCA(struct mlx4_dev *dev,
1616 struct mlx4_init_hca_param *param)
1617 {
1618 struct mlx4_cmd_mailbox *mailbox;
1619 __be32 *outbox;
1620 u32 dword_field;
1621 u32 mw_enable;
1622 int err;
1623 u8 byte_field;
1624
1625 #define QUERY_HCA_GLOBAL_CAPS_OFFSET 0x04
1626 #define QUERY_HCA_CORE_CLOCK_OFFSET 0x0c
1627
1628 mailbox = mlx4_alloc_cmd_mailbox(dev);
1629 if (IS_ERR(mailbox))
1630 return PTR_ERR(mailbox);
1631 outbox = mailbox->buf;
1632
1633 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
1634 MLX4_CMD_QUERY_HCA,
1635 MLX4_CMD_TIME_CLASS_B,
1636 !mlx4_is_slave(dev));
1637 if (err)
1638 goto out;
1639
1640 MLX4_GET(param->global_caps, outbox, QUERY_HCA_GLOBAL_CAPS_OFFSET);
1641 MLX4_GET(param->hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
1642
1643 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1644
1645 MLX4_GET(param->qpc_base, outbox, INIT_HCA_QPC_BASE_OFFSET);
1646 MLX4_GET(param->log_num_qps, outbox, INIT_HCA_LOG_QP_OFFSET);
1647 MLX4_GET(param->srqc_base, outbox, INIT_HCA_SRQC_BASE_OFFSET);
1648 MLX4_GET(param->log_num_srqs, outbox, INIT_HCA_LOG_SRQ_OFFSET);
1649 MLX4_GET(param->cqc_base, outbox, INIT_HCA_CQC_BASE_OFFSET);
1650 MLX4_GET(param->log_num_cqs, outbox, INIT_HCA_LOG_CQ_OFFSET);
1651 MLX4_GET(param->altc_base, outbox, INIT_HCA_ALTC_BASE_OFFSET);
1652 MLX4_GET(param->auxc_base, outbox, INIT_HCA_AUXC_BASE_OFFSET);
1653 MLX4_GET(param->eqc_base, outbox, INIT_HCA_EQC_BASE_OFFSET);
1654 MLX4_GET(param->log_num_eqs, outbox, INIT_HCA_LOG_EQ_OFFSET);
1655 MLX4_GET(param->num_sys_eqs, outbox, INIT_HCA_NUM_SYS_EQS_OFFSET);
1656 MLX4_GET(param->rdmarc_base, outbox, INIT_HCA_RDMARC_BASE_OFFSET);
1657 MLX4_GET(param->log_rd_per_qp, outbox, INIT_HCA_LOG_RD_OFFSET);
1658
1659 MLX4_GET(dword_field, outbox, INIT_HCA_FLAGS_OFFSET);
1660 if (dword_field & (1 << INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN)) {
1661 param->steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1662 } else {
1663 MLX4_GET(byte_field, outbox, INIT_HCA_UC_STEERING_OFFSET);
1664 if (byte_field & 0x8)
1665 param->steering_mode = MLX4_STEERING_MODE_B0;
1666 else
1667 param->steering_mode = MLX4_STEERING_MODE_A0;
1668 }
1669 /* steering attributes */
1670 if (param->steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
1671 MLX4_GET(param->mc_base, outbox, INIT_HCA_FS_BASE_OFFSET);
1672 MLX4_GET(param->log_mc_entry_sz, outbox,
1673 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
1674 MLX4_GET(param->log_mc_table_sz, outbox,
1675 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
1676 } else {
1677 MLX4_GET(param->mc_base, outbox, INIT_HCA_MC_BASE_OFFSET);
1678 MLX4_GET(param->log_mc_entry_sz, outbox,
1679 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1680 MLX4_GET(param->log_mc_hash_sz, outbox,
1681 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
1682 MLX4_GET(param->log_mc_table_sz, outbox,
1683 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1684 }
1685
1686 /* CX3 is capable of extending CQEs\EQEs from 32 to 64 bytes */
1687 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_OFFSETS);
1688 if (byte_field & 0x20) /* 64-bytes eqe enabled */
1689 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_EQE_ENABLED;
1690 if (byte_field & 0x40) /* 64-bytes cqe enabled */
1691 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_CQE_ENABLED;
1692
1693 /* TPT attributes */
1694
1695 MLX4_GET(param->dmpt_base, outbox, INIT_HCA_DMPT_BASE_OFFSET);
1696 MLX4_GET(mw_enable, outbox, INIT_HCA_TPT_MW_OFFSET);
1697 param->mw_enable = (mw_enable & INIT_HCA_TPT_MW_ENABLE) ==
1698 INIT_HCA_TPT_MW_ENABLE;
1699 MLX4_GET(param->log_mpt_sz, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
1700 MLX4_GET(param->mtt_base, outbox, INIT_HCA_MTT_BASE_OFFSET);
1701 MLX4_GET(param->cmpt_base, outbox, INIT_HCA_CMPT_BASE_OFFSET);
1702
1703 /* UAR attributes */
1704
1705 MLX4_GET(param->uar_page_sz, outbox, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1706 MLX4_GET(param->log_uar_sz, outbox, INIT_HCA_LOG_UAR_SZ_OFFSET);
1707
1708 out:
1709 mlx4_free_cmd_mailbox(dev, mailbox);
1710
1711 return err;
1712 }
1713
1714 /* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
1715 * and real QP0 are active, so that the paravirtualized QP0 is ready
1716 * to operate */
check_qp0_state(struct mlx4_dev * dev,int function,int port)1717 static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
1718 {
1719 struct mlx4_priv *priv = mlx4_priv(dev);
1720 /* irrelevant if not infiniband */
1721 if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
1722 priv->mfunc.master.qp0_state[port].qp0_active)
1723 return 1;
1724 return 0;
1725 }
1726
mlx4_INIT_PORT_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1727 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
1728 struct mlx4_vhcr *vhcr,
1729 struct mlx4_cmd_mailbox *inbox,
1730 struct mlx4_cmd_mailbox *outbox,
1731 struct mlx4_cmd_info *cmd)
1732 {
1733 struct mlx4_priv *priv = mlx4_priv(dev);
1734 int port = vhcr->in_modifier;
1735 int err;
1736
1737 if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
1738 return 0;
1739
1740 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
1741 /* Enable port only if it was previously disabled */
1742 if (!priv->mfunc.master.init_port_ref[port]) {
1743 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
1744 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1745 if (err)
1746 return err;
1747 }
1748 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
1749 } else {
1750 if (slave == mlx4_master_func_num(dev)) {
1751 if (check_qp0_state(dev, slave, port) &&
1752 !priv->mfunc.master.qp0_state[port].port_active) {
1753 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
1754 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1755 if (err)
1756 return err;
1757 priv->mfunc.master.qp0_state[port].port_active = 1;
1758 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
1759 }
1760 } else
1761 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
1762 }
1763 ++priv->mfunc.master.init_port_ref[port];
1764 return 0;
1765 }
1766
mlx4_INIT_PORT(struct mlx4_dev * dev,int port)1767 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
1768 {
1769 struct mlx4_cmd_mailbox *mailbox;
1770 u32 *inbox;
1771 int err;
1772 u32 flags;
1773 u16 field;
1774
1775 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
1776 #define INIT_PORT_IN_SIZE 256
1777 #define INIT_PORT_FLAGS_OFFSET 0x00
1778 #define INIT_PORT_FLAG_SIG (1 << 18)
1779 #define INIT_PORT_FLAG_NG (1 << 17)
1780 #define INIT_PORT_FLAG_G0 (1 << 16)
1781 #define INIT_PORT_VL_SHIFT 4
1782 #define INIT_PORT_PORT_WIDTH_SHIFT 8
1783 #define INIT_PORT_MTU_OFFSET 0x04
1784 #define INIT_PORT_MAX_GID_OFFSET 0x06
1785 #define INIT_PORT_MAX_PKEY_OFFSET 0x0a
1786 #define INIT_PORT_GUID0_OFFSET 0x10
1787 #define INIT_PORT_NODE_GUID_OFFSET 0x18
1788 #define INIT_PORT_SI_GUID_OFFSET 0x20
1789
1790 mailbox = mlx4_alloc_cmd_mailbox(dev);
1791 if (IS_ERR(mailbox))
1792 return PTR_ERR(mailbox);
1793 inbox = mailbox->buf;
1794
1795 memset(inbox, 0, INIT_PORT_IN_SIZE);
1796
1797 flags = 0;
1798 flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
1799 flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
1800 MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
1801
1802 field = 128 << dev->caps.ib_mtu_cap[port];
1803 MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
1804 field = dev->caps.gid_table_len[port];
1805 MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
1806 field = dev->caps.pkey_table_len[port];
1807 MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
1808
1809 err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
1810 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1811
1812 mlx4_free_cmd_mailbox(dev, mailbox);
1813 } else
1814 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
1815 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
1816
1817 return err;
1818 }
1819 EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
1820
mlx4_CLOSE_PORT_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1821 int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
1822 struct mlx4_vhcr *vhcr,
1823 struct mlx4_cmd_mailbox *inbox,
1824 struct mlx4_cmd_mailbox *outbox,
1825 struct mlx4_cmd_info *cmd)
1826 {
1827 struct mlx4_priv *priv = mlx4_priv(dev);
1828 int port = vhcr->in_modifier;
1829 int err;
1830
1831 if (!(priv->mfunc.master.slave_state[slave].init_port_mask &
1832 (1 << port)))
1833 return 0;
1834
1835 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
1836 if (priv->mfunc.master.init_port_ref[port] == 1) {
1837 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
1838 1000, MLX4_CMD_NATIVE);
1839 if (err)
1840 return err;
1841 }
1842 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
1843 } else {
1844 /* infiniband port */
1845 if (slave == mlx4_master_func_num(dev)) {
1846 if (!priv->mfunc.master.qp0_state[port].qp0_active &&
1847 priv->mfunc.master.qp0_state[port].port_active) {
1848 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
1849 1000, MLX4_CMD_NATIVE);
1850 if (err)
1851 return err;
1852 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
1853 priv->mfunc.master.qp0_state[port].port_active = 0;
1854 }
1855 } else
1856 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
1857 }
1858 --priv->mfunc.master.init_port_ref[port];
1859 return 0;
1860 }
1861
mlx4_CLOSE_PORT(struct mlx4_dev * dev,int port)1862 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
1863 {
1864 return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000,
1865 MLX4_CMD_WRAPPED);
1866 }
1867 EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
1868
mlx4_CLOSE_HCA(struct mlx4_dev * dev,int panic)1869 int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
1870 {
1871 return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000,
1872 MLX4_CMD_NATIVE);
1873 }
1874
mlx4_SET_ICM_SIZE(struct mlx4_dev * dev,u64 icm_size,u64 * aux_pages)1875 int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
1876 {
1877 int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
1878 MLX4_CMD_SET_ICM_SIZE,
1879 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1880 if (ret)
1881 return ret;
1882
1883 /*
1884 * Round up number of system pages needed in case
1885 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
1886 */
1887 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
1888 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
1889
1890 return 0;
1891 }
1892
mlx4_NOP(struct mlx4_dev * dev)1893 int mlx4_NOP(struct mlx4_dev *dev)
1894 {
1895 /* Input modifier of 0x1f means "finish as soon as possible." */
1896 return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1897 }
1898
mlx4_query_diag_counters(struct mlx4_dev * dev,int array_length,u8 op_modifier,u32 in_offset[],u32 counter_out[])1899 int mlx4_query_diag_counters(struct mlx4_dev *dev, int array_length,
1900 u8 op_modifier, u32 in_offset[],
1901 u32 counter_out[])
1902 {
1903 struct mlx4_cmd_mailbox *mailbox;
1904 u32 *outbox;
1905 int ret;
1906 int i;
1907
1908 mailbox = mlx4_alloc_cmd_mailbox(dev);
1909 if (IS_ERR(mailbox))
1910 return PTR_ERR(mailbox);
1911 outbox = mailbox->buf;
1912
1913 ret = mlx4_cmd_box(dev, 0, mailbox->dma, 0, op_modifier,
1914 MLX4_CMD_DIAG_RPRT, MLX4_CMD_TIME_CLASS_A,
1915 MLX4_CMD_NATIVE);
1916 if (ret)
1917 goto out;
1918
1919 for (i = 0; i < array_length; i++) {
1920 if (in_offset[i] > MLX4_MAILBOX_SIZE) {
1921 ret = -EINVAL;
1922 goto out;
1923 }
1924
1925 MLX4_GET(counter_out[i], outbox, in_offset[i]);
1926 }
1927
1928 out:
1929 mlx4_free_cmd_mailbox(dev, mailbox);
1930 return ret;
1931 }
1932 EXPORT_SYMBOL_GPL(mlx4_query_diag_counters);
1933
mlx4_MOD_STAT_CFG_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1934 int mlx4_MOD_STAT_CFG_wrapper(struct mlx4_dev *dev, int slave,
1935 struct mlx4_vhcr *vhcr,
1936 struct mlx4_cmd_mailbox *inbox,
1937 struct mlx4_cmd_mailbox *outbox,
1938 struct mlx4_cmd_info *cmd)
1939 {
1940 return -EPERM;
1941 }
1942
1943 #define MLX4_WOL_SETUP_MODE (5 << 28)
mlx4_wol_read(struct mlx4_dev * dev,u64 * config,int port)1944 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
1945 {
1946 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
1947
1948 return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
1949 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
1950 MLX4_CMD_NATIVE);
1951 }
1952 EXPORT_SYMBOL_GPL(mlx4_wol_read);
1953
mlx4_wol_write(struct mlx4_dev * dev,u64 config,int port)1954 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
1955 {
1956 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
1957
1958 return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
1959 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1960 }
1961 EXPORT_SYMBOL_GPL(mlx4_wol_write);
1962
1963 enum {
1964 ADD_TO_MCG = 0x26,
1965 };
1966
1967
mlx4_opreq_action(struct work_struct * work)1968 void mlx4_opreq_action(struct work_struct *work)
1969 {
1970 struct mlx4_priv *priv = container_of(work, struct mlx4_priv, opreq_task);
1971 struct mlx4_dev *dev = &priv->dev;
1972 int num_tasks = atomic_read(&priv->opreq_count);
1973 struct mlx4_cmd_mailbox *mailbox;
1974 struct mlx4_mgm *mgm;
1975 u32 *outbox;
1976 u32 modifier;
1977 u16 token;
1978 u16 type_m;
1979 u16 type;
1980 int err;
1981 u32 num_qps;
1982 struct mlx4_qp qp;
1983 int i;
1984 u8 rem_mcg;
1985 u8 prot;
1986
1987 #define GET_OP_REQ_MODIFIER_OFFSET 0x08
1988 #define GET_OP_REQ_TOKEN_OFFSET 0x14
1989 #define GET_OP_REQ_TYPE_OFFSET 0x1a
1990 #define GET_OP_REQ_DATA_OFFSET 0x20
1991
1992 mailbox = mlx4_alloc_cmd_mailbox(dev);
1993 if (IS_ERR(mailbox)) {
1994 mlx4_err(dev, "Failed to allocate mailbox for GET_OP_REQ\n");
1995 return;
1996 }
1997 outbox = mailbox->buf;
1998
1999 while (num_tasks) {
2000 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2001 MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2002 MLX4_CMD_NATIVE);
2003 if (err) {
2004 mlx4_err(dev, "Failed to retreive required operation: %d\n", err);
2005 return;
2006 }
2007 MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
2008 MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
2009 MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
2010 type_m = type >> 12;
2011 type &= 0xfff;
2012
2013 switch (type) {
2014 case ADD_TO_MCG:
2015 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2016 mlx4_warn(dev, "ADD MCG operation is not supported in "
2017 "DEVICE_MANAGED steerign mode\n");
2018 err = EPERM;
2019 break;
2020 }
2021 mgm = (struct mlx4_mgm *) ((u8 *) (outbox) + GET_OP_REQ_DATA_OFFSET);
2022 num_qps = be32_to_cpu(mgm->members_count) & MGM_QPN_MASK;
2023 rem_mcg = ((u8 *) (&mgm->members_count))[0] & 1;
2024 prot = ((u8 *) (&mgm->members_count))[0] >> 6;
2025
2026 for (i = 0; i < num_qps; i++) {
2027 qp.qpn = be32_to_cpu(mgm->qp[i]);
2028 if (rem_mcg)
2029 err = mlx4_multicast_detach(dev, &qp, mgm->gid, prot, 0);
2030 else
2031 err = mlx4_multicast_attach(dev, &qp, mgm->gid, mgm->gid[5] ,0, prot, NULL);
2032 if (err)
2033 break;
2034 }
2035 break;
2036 default:
2037 mlx4_warn(dev, "Bad type for required operation\n");
2038 err = EINVAL;
2039 break;
2040 }
2041 err = mlx4_cmd(dev, 0, ((u32) err | cpu_to_be32(token) << 16), 1,
2042 MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2043 MLX4_CMD_NATIVE);
2044 if (err) {
2045 mlx4_err(dev, "Failed to acknowledge required request: %d\n", err);
2046 goto out;
2047 }
2048 memset(outbox, 0, 0xffc);
2049 num_tasks = atomic_dec_return(&priv->opreq_count);
2050 }
2051
2052 out:
2053 mlx4_free_cmd_mailbox(dev, mailbox);
2054 }
2055