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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / mellanox / mlx4 / fw.c
1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005, 2006, 2007, 2008 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 = true;
53 module_param(enable_qos, bool, 0444);
54 MODULE_PARM_DESC(enable_qos, "Enable Enhanced QoS support (default: on)");
55
56 #define MLX4_GET(dest, source, offset) \
57 do { \
58 void *__p = (char *) (source) + (offset); \
59 u64 val; \
60 switch (sizeof (dest)) { \
61 case 1: (dest) = *(u8 *) __p; break; \
62 case 2: (dest) = be16_to_cpup(__p); break; \
63 case 4: (dest) = be32_to_cpup(__p); break; \
64 case 8: val = get_unaligned((u64 *)__p); \
65 (dest) = be64_to_cpu(val); break; \
66 default: __buggy_use_of_MLX4_GET(); \
67 } \
68 } while (0)
69
70 #define MLX4_PUT(dest, source, offset) \
71 do { \
72 void *__d = ((char *) (dest) + (offset)); \
73 switch (sizeof(source)) { \
74 case 1: *(u8 *) __d = (source); break; \
75 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
76 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
77 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
78 default: __buggy_use_of_MLX4_PUT(); \
79 } \
80 } while (0)
81
82 static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
83 {
84 static const char *fname[] = {
85 [ 0] = "RC transport",
86 [ 1] = "UC transport",
87 [ 2] = "UD transport",
88 [ 3] = "XRC transport",
89 [ 6] = "SRQ support",
90 [ 7] = "IPoIB checksum offload",
91 [ 8] = "P_Key violation counter",
92 [ 9] = "Q_Key violation counter",
93 [12] = "Dual Port Different Protocol (DPDP) support",
94 [15] = "Big LSO headers",
95 [16] = "MW support",
96 [17] = "APM support",
97 [18] = "Atomic ops support",
98 [19] = "Raw multicast support",
99 [20] = "Address vector port checking support",
100 [21] = "UD multicast support",
101 [30] = "IBoE support",
102 [32] = "Unicast loopback support",
103 [34] = "FCS header control",
104 [37] = "Wake On LAN (port1) support",
105 [38] = "Wake On LAN (port2) support",
106 [40] = "UDP RSS support",
107 [41] = "Unicast VEP steering support",
108 [42] = "Multicast VEP steering support",
109 [48] = "Counters support",
110 [52] = "RSS IP fragments support",
111 [53] = "Port ETS Scheduler support",
112 [55] = "Port link type sensing support",
113 [59] = "Port management change event support",
114 [61] = "64 byte EQE support",
115 [62] = "64 byte CQE support",
116 };
117 int i;
118
119 mlx4_dbg(dev, "DEV_CAP flags:\n");
120 for (i = 0; i < ARRAY_SIZE(fname); ++i)
121 if (fname[i] && (flags & (1LL << i)))
122 mlx4_dbg(dev, " %s\n", fname[i]);
123 }
124
125 static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
126 {
127 static const char * const fname[] = {
128 [0] = "RSS support",
129 [1] = "RSS Toeplitz Hash Function support",
130 [2] = "RSS XOR Hash Function support",
131 [3] = "Device managed flow steering support",
132 [4] = "Automatic MAC reassignment support",
133 [5] = "Time stamping support",
134 [6] = "VST (control vlan insertion/stripping) support",
135 [7] = "FSM (MAC anti-spoofing) support",
136 [8] = "Dynamic QP updates support",
137 [9] = "Device managed flow steering IPoIB support",
138 [10] = "TCP/IP offloads/flow-steering for VXLAN support",
139 [11] = "MAD DEMUX (Secure-Host) support",
140 [12] = "Large cache line (>64B) CQE stride support",
141 [13] = "Large cache line (>64B) EQE stride support",
142 [14] = "Ethernet protocol control support",
143 [15] = "Ethernet Backplane autoneg support",
144 [16] = "CONFIG DEV support",
145 [17] = "Asymmetric EQs support",
146 [18] = "More than 80 VFs support",
147 [19] = "Performance optimized for limited rule configuration flow steering support",
148 [20] = "Recoverable error events support",
149 [21] = "Port Remap support",
150 [22] = "QCN support",
151 [23] = "QP rate limiting support",
152 [24] = "Ethernet Flow control statistics support",
153 [25] = "Granular QoS per VF support",
154 [26] = "Port ETS Scheduler support",
155 [27] = "Port beacon support",
156 [28] = "RX-ALL support",
157 [29] = "802.1ad offload support",
158 [31] = "Modifying loopback source checks using UPDATE_QP support",
159 [32] = "Loopback source checks support",
160 [33] = "RoCEv2 support",
161 [34] = "DMFS Sniffer support (UC & MC)"
162 };
163 int i;
164
165 for (i = 0; i < ARRAY_SIZE(fname); ++i)
166 if (fname[i] && (flags & (1LL << i)))
167 mlx4_dbg(dev, " %s\n", fname[i]);
168 }
169
170 int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
171 {
172 struct mlx4_cmd_mailbox *mailbox;
173 u32 *inbox;
174 int err = 0;
175
176 #define MOD_STAT_CFG_IN_SIZE 0x100
177
178 #define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
179 #define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
180
181 mailbox = mlx4_alloc_cmd_mailbox(dev);
182 if (IS_ERR(mailbox))
183 return PTR_ERR(mailbox);
184 inbox = mailbox->buf;
185
186 MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
187 MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
188
189 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
190 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
191
192 mlx4_free_cmd_mailbox(dev, mailbox);
193 return err;
194 }
195
196 int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
197 {
198 struct mlx4_cmd_mailbox *mailbox;
199 u32 *outbox;
200 u8 in_modifier;
201 u8 field;
202 u16 field16;
203 int err;
204
205 #define QUERY_FUNC_BUS_OFFSET 0x00
206 #define QUERY_FUNC_DEVICE_OFFSET 0x01
207 #define QUERY_FUNC_FUNCTION_OFFSET 0x01
208 #define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
209 #define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
210 #define QUERY_FUNC_MAX_EQ_OFFSET 0x06
211 #define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
212
213 mailbox = mlx4_alloc_cmd_mailbox(dev);
214 if (IS_ERR(mailbox))
215 return PTR_ERR(mailbox);
216 outbox = mailbox->buf;
217
218 in_modifier = slave;
219
220 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
221 MLX4_CMD_QUERY_FUNC,
222 MLX4_CMD_TIME_CLASS_A,
223 MLX4_CMD_NATIVE);
224 if (err)
225 goto out;
226
227 MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
228 func->bus = field & 0xf;
229 MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
230 func->device = field & 0xf1;
231 MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
232 func->function = field & 0x7;
233 MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
234 func->physical_function = field & 0xf;
235 MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
236 func->rsvd_eqs = field16 & 0xffff;
237 MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
238 func->max_eq = field16 & 0xffff;
239 MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
240 func->rsvd_uars = field & 0x0f;
241
242 mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
243 func->bus, func->device, func->function, func->physical_function,
244 func->max_eq, func->rsvd_eqs, func->rsvd_uars);
245
246 out:
247 mlx4_free_cmd_mailbox(dev, mailbox);
248 return err;
249 }
250
251 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
252 struct mlx4_vhcr *vhcr,
253 struct mlx4_cmd_mailbox *inbox,
254 struct mlx4_cmd_mailbox *outbox,
255 struct mlx4_cmd_info *cmd)
256 {
257 struct mlx4_priv *priv = mlx4_priv(dev);
258 u8 field, port;
259 u32 size, proxy_qp, qkey;
260 int err = 0;
261 struct mlx4_func func;
262
263 #define QUERY_FUNC_CAP_FLAGS_OFFSET 0x0
264 #define QUERY_FUNC_CAP_NUM_PORTS_OFFSET 0x1
265 #define QUERY_FUNC_CAP_PF_BHVR_OFFSET 0x4
266 #define QUERY_FUNC_CAP_FMR_OFFSET 0x8
267 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP 0x10
268 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP 0x14
269 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP 0x18
270 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP 0x20
271 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP 0x24
272 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP 0x28
273 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET 0x2c
274 #define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET 0x30
275 #define QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET 0x48
276
277 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET 0x50
278 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET 0x54
279 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET 0x58
280 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET 0x60
281 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET 0x64
282 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET 0x68
283
284 #define QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET 0x6c
285
286 #define QUERY_FUNC_CAP_FMR_FLAG 0x80
287 #define QUERY_FUNC_CAP_FLAG_RDMA 0x40
288 #define QUERY_FUNC_CAP_FLAG_ETH 0x80
289 #define QUERY_FUNC_CAP_FLAG_QUOTAS 0x10
290 #define QUERY_FUNC_CAP_FLAG_RESD_LKEY 0x08
291 #define QUERY_FUNC_CAP_FLAG_VALID_MAILBOX 0x04
292
293 #define QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG (1UL << 31)
294 #define QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG (1UL << 30)
295
296 /* when opcode modifier = 1 */
297 #define QUERY_FUNC_CAP_PHYS_PORT_OFFSET 0x3
298 #define QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET 0x4
299 #define QUERY_FUNC_CAP_FLAGS0_OFFSET 0x8
300 #define QUERY_FUNC_CAP_FLAGS1_OFFSET 0xc
301
302 #define QUERY_FUNC_CAP_QP0_TUNNEL 0x10
303 #define QUERY_FUNC_CAP_QP0_PROXY 0x14
304 #define QUERY_FUNC_CAP_QP1_TUNNEL 0x18
305 #define QUERY_FUNC_CAP_QP1_PROXY 0x1c
306 #define QUERY_FUNC_CAP_PHYS_PORT_ID 0x28
307
308 #define QUERY_FUNC_CAP_FLAGS1_FORCE_MAC 0x40
309 #define QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN 0x80
310 #define QUERY_FUNC_CAP_FLAGS1_NIC_INFO 0x10
311 #define QUERY_FUNC_CAP_VF_ENABLE_QP0 0x08
312
313 #define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
314 #define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS (1 << 31)
315 #define QUERY_FUNC_CAP_PHV_BIT 0x40
316
317 if (vhcr->op_modifier == 1) {
318 struct mlx4_active_ports actv_ports =
319 mlx4_get_active_ports(dev, slave);
320 int converted_port = mlx4_slave_convert_port(
321 dev, slave, vhcr->in_modifier);
322
323 if (converted_port < 0)
324 return -EINVAL;
325
326 vhcr->in_modifier = converted_port;
327 /* phys-port = logical-port */
328 field = vhcr->in_modifier -
329 find_first_bit(actv_ports.ports, dev->caps.num_ports);
330 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
331
332 port = vhcr->in_modifier;
333 proxy_qp = dev->phys_caps.base_proxy_sqpn + 8 * slave + port - 1;
334
335 /* Set nic_info bit to mark new fields support */
336 field = QUERY_FUNC_CAP_FLAGS1_NIC_INFO;
337
338 if (mlx4_vf_smi_enabled(dev, slave, port) &&
339 !mlx4_get_parav_qkey(dev, proxy_qp, &qkey)) {
340 field |= QUERY_FUNC_CAP_VF_ENABLE_QP0;
341 MLX4_PUT(outbox->buf, qkey,
342 QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
343 }
344 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
345
346 /* size is now the QP number */
347 size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + port - 1;
348 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
349
350 size += 2;
351 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
352
353 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP0_PROXY);
354 proxy_qp += 2;
355 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP1_PROXY);
356
357 MLX4_PUT(outbox->buf, dev->caps.phys_port_id[vhcr->in_modifier],
358 QUERY_FUNC_CAP_PHYS_PORT_ID);
359
360 if (dev->caps.phv_bit[port]) {
361 field = QUERY_FUNC_CAP_PHV_BIT;
362 MLX4_PUT(outbox->buf, field,
363 QUERY_FUNC_CAP_FLAGS0_OFFSET);
364 }
365
366 } else if (vhcr->op_modifier == 0) {
367 struct mlx4_active_ports actv_ports =
368 mlx4_get_active_ports(dev, slave);
369 /* enable rdma and ethernet interfaces, new quota locations,
370 * and reserved lkey
371 */
372 field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
373 QUERY_FUNC_CAP_FLAG_QUOTAS | QUERY_FUNC_CAP_FLAG_VALID_MAILBOX |
374 QUERY_FUNC_CAP_FLAG_RESD_LKEY);
375 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
376
377 field = min(
378 bitmap_weight(actv_ports.ports, dev->caps.num_ports),
379 dev->caps.num_ports);
380 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
381
382 size = dev->caps.function_caps; /* set PF behaviours */
383 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
384
385 field = 0; /* protected FMR support not available as yet */
386 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
387
388 size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
389 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
390 size = dev->caps.num_qps;
391 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
392
393 size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
394 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
395 size = dev->caps.num_srqs;
396 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
397
398 size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
399 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
400 size = dev->caps.num_cqs;
401 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
402
403 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) ||
404 mlx4_QUERY_FUNC(dev, &func, slave)) {
405 size = vhcr->in_modifier &
406 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
407 dev->caps.num_eqs :
408 rounddown_pow_of_two(dev->caps.num_eqs);
409 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
410 size = dev->caps.reserved_eqs;
411 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
412 } else {
413 size = vhcr->in_modifier &
414 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
415 func.max_eq :
416 rounddown_pow_of_two(func.max_eq);
417 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
418 size = func.rsvd_eqs;
419 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
420 }
421
422 size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
423 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
424 size = dev->caps.num_mpts;
425 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
426
427 size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
428 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
429 size = dev->caps.num_mtts;
430 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
431
432 size = dev->caps.num_mgms + dev->caps.num_amgms;
433 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
434 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
435
436 size = QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG |
437 QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG;
438 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
439
440 size = dev->caps.reserved_lkey + ((slave << 8) & 0xFF00);
441 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
442 } else
443 err = -EINVAL;
444
445 return err;
446 }
447
448 int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,
449 struct mlx4_func_cap *func_cap)
450 {
451 struct mlx4_cmd_mailbox *mailbox;
452 u32 *outbox;
453 u8 field, op_modifier;
454 u32 size, qkey;
455 int err = 0, quotas = 0;
456 u32 in_modifier;
457
458 op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
459 in_modifier = op_modifier ? gen_or_port :
460 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
461
462 mailbox = mlx4_alloc_cmd_mailbox(dev);
463 if (IS_ERR(mailbox))
464 return PTR_ERR(mailbox);
465
466 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, op_modifier,
467 MLX4_CMD_QUERY_FUNC_CAP,
468 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
469 if (err)
470 goto out;
471
472 outbox = mailbox->buf;
473
474 if (!op_modifier) {
475 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
476 if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
477 mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
478 err = -EPROTONOSUPPORT;
479 goto out;
480 }
481 func_cap->flags = field;
482 quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
483
484 MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
485 func_cap->num_ports = field;
486
487 MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
488 func_cap->pf_context_behaviour = size;
489
490 if (quotas) {
491 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
492 func_cap->qp_quota = size & 0xFFFFFF;
493
494 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
495 func_cap->srq_quota = size & 0xFFFFFF;
496
497 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
498 func_cap->cq_quota = size & 0xFFFFFF;
499
500 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
501 func_cap->mpt_quota = size & 0xFFFFFF;
502
503 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
504 func_cap->mtt_quota = size & 0xFFFFFF;
505
506 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
507 func_cap->mcg_quota = size & 0xFFFFFF;
508
509 } else {
510 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
511 func_cap->qp_quota = size & 0xFFFFFF;
512
513 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
514 func_cap->srq_quota = size & 0xFFFFFF;
515
516 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
517 func_cap->cq_quota = size & 0xFFFFFF;
518
519 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
520 func_cap->mpt_quota = size & 0xFFFFFF;
521
522 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
523 func_cap->mtt_quota = size & 0xFFFFFF;
524
525 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
526 func_cap->mcg_quota = size & 0xFFFFFF;
527 }
528 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
529 func_cap->max_eq = size & 0xFFFFFF;
530
531 MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
532 func_cap->reserved_eq = size & 0xFFFFFF;
533
534 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_RESD_LKEY) {
535 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
536 func_cap->reserved_lkey = size;
537 } else {
538 func_cap->reserved_lkey = 0;
539 }
540
541 func_cap->extra_flags = 0;
542
543 /* Mailbox data from 0x6c and onward should only be treated if
544 * QUERY_FUNC_CAP_FLAG_VALID_MAILBOX is set in func_cap->flags
545 */
546 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_VALID_MAILBOX) {
547 MLX4_GET(size, outbox, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
548 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG)
549 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_BF_RES_QP;
550 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG)
551 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_A0_RES_QP;
552 }
553
554 goto out;
555 }
556
557 /* logical port query */
558 if (gen_or_port > dev->caps.num_ports) {
559 err = -EINVAL;
560 goto out;
561 }
562
563 MLX4_GET(func_cap->flags1, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
564 if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
565 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN) {
566 mlx4_err(dev, "VLAN is enforced on this port\n");
567 err = -EPROTONOSUPPORT;
568 goto out;
569 }
570
571 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
572 mlx4_err(dev, "Force mac is enabled on this port\n");
573 err = -EPROTONOSUPPORT;
574 goto out;
575 }
576 } else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
577 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
578 if (field & QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID) {
579 mlx4_err(dev, "phy_wqe_gid is enforced on this ib port\n");
580 err = -EPROTONOSUPPORT;
581 goto out;
582 }
583 }
584
585 MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
586 func_cap->physical_port = field;
587 if (func_cap->physical_port != gen_or_port) {
588 err = -ENOSYS;
589 goto out;
590 }
591
592 if (func_cap->flags1 & QUERY_FUNC_CAP_VF_ENABLE_QP0) {
593 MLX4_GET(qkey, outbox, QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
594 func_cap->qp0_qkey = qkey;
595 } else {
596 func_cap->qp0_qkey = 0;
597 }
598
599 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
600 func_cap->qp0_tunnel_qpn = size & 0xFFFFFF;
601
602 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
603 func_cap->qp0_proxy_qpn = size & 0xFFFFFF;
604
605 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
606 func_cap->qp1_tunnel_qpn = size & 0xFFFFFF;
607
608 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
609 func_cap->qp1_proxy_qpn = size & 0xFFFFFF;
610
611 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_NIC_INFO)
612 MLX4_GET(func_cap->phys_port_id, outbox,
613 QUERY_FUNC_CAP_PHYS_PORT_ID);
614
615 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
616 func_cap->flags |= (field & QUERY_FUNC_CAP_PHV_BIT);
617
618 /* All other resources are allocated by the master, but we still report
619 * 'num' and 'reserved' capabilities as follows:
620 * - num remains the maximum resource index
621 * - 'num - reserved' is the total available objects of a resource, but
622 * resource indices may be less than 'reserved'
623 * TODO: set per-resource quotas */
624
625 out:
626 mlx4_free_cmd_mailbox(dev, mailbox);
627
628 return err;
629 }
630
631 static void disable_unsupported_roce_caps(void *buf);
632
633 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
634 {
635 struct mlx4_cmd_mailbox *mailbox;
636 u32 *outbox;
637 u8 field;
638 u32 field32, flags, ext_flags;
639 u16 size;
640 u16 stat_rate;
641 int err;
642 int i;
643
644 #define QUERY_DEV_CAP_OUT_SIZE 0x100
645 #define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
646 #define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
647 #define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
648 #define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
649 #define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
650 #define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
651 #define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
652 #define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
653 #define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
654 #define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
655 #define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
656 #define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
657 #define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
658 #define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
659 #define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
660 #define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
661 #define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
662 #define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
663 #define QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET 0x26
664 #define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
665 #define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
666 #define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
667 #define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
668 #define QUERY_DEV_CAP_RSS_OFFSET 0x2e
669 #define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
670 #define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
671 #define QUERY_DEV_CAP_PORT_BEACON_OFFSET 0x34
672 #define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
673 #define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
674 #define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
675 #define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
676 #define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
677 #define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
678 #define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET 0x3e
679 #define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
680 #define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
681 #define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
682 #define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
683 #define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
684 #define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
685 #define QUERY_DEV_CAP_BF_OFFSET 0x4c
686 #define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
687 #define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
688 #define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
689 #define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
690 #define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
691 #define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
692 #define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
693 #define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
694 #define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
695 #define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
696 #define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
697 #define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
698 #define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
699 #define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
700 #define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
701 #define QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET 0x70
702 #define QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET 0x70
703 #define QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET 0x74
704 #define QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET 0x76
705 #define QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET 0x77
706 #define QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE 0x7a
707 #define QUERY_DEV_CAP_ECN_QCN_VER_OFFSET 0x7b
708 #define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
709 #define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
710 #define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
711 #define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
712 #define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
713 #define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
714 #define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
715 #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
716 #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
717 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
718 #define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
719 #define QUERY_DEV_CAP_CONFIG_DEV_OFFSET 0x94
720 #define QUERY_DEV_CAP_PHV_EN_OFFSET 0x96
721 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
722 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
723 #define QUERY_DEV_CAP_ETH_BACKPL_OFFSET 0x9c
724 #define QUERY_DEV_CAP_DIAG_RPRT_PER_PORT 0x9c
725 #define QUERY_DEV_CAP_FW_REASSIGN_MAC 0x9d
726 #define QUERY_DEV_CAP_VXLAN 0x9e
727 #define QUERY_DEV_CAP_MAD_DEMUX_OFFSET 0xb0
728 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET 0xa8
729 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET 0xac
730 #define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET 0xcc
731 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET 0xd0
732 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET 0xd2
733
734
735 dev_cap->flags2 = 0;
736 mailbox = mlx4_alloc_cmd_mailbox(dev);
737 if (IS_ERR(mailbox))
738 return PTR_ERR(mailbox);
739 outbox = mailbox->buf;
740
741 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
742 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
743 if (err)
744 goto out;
745
746 if (mlx4_is_mfunc(dev))
747 disable_unsupported_roce_caps(outbox);
748 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
749 dev_cap->reserved_qps = 1 << (field & 0xf);
750 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
751 dev_cap->max_qps = 1 << (field & 0x1f);
752 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
753 dev_cap->reserved_srqs = 1 << (field >> 4);
754 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
755 dev_cap->max_srqs = 1 << (field & 0x1f);
756 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
757 dev_cap->max_cq_sz = 1 << field;
758 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
759 dev_cap->reserved_cqs = 1 << (field & 0xf);
760 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
761 dev_cap->max_cqs = 1 << (field & 0x1f);
762 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
763 dev_cap->max_mpts = 1 << (field & 0x3f);
764 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
765 dev_cap->reserved_eqs = 1 << (field & 0xf);
766 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
767 dev_cap->max_eqs = 1 << (field & 0xf);
768 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
769 dev_cap->reserved_mtts = 1 << (field >> 4);
770 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
771 dev_cap->max_mrw_sz = 1 << field;
772 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
773 dev_cap->reserved_mrws = 1 << (field & 0xf);
774 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
775 dev_cap->max_mtt_seg = 1 << (field & 0x3f);
776 MLX4_GET(size, outbox, QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET);
777 dev_cap->num_sys_eqs = size & 0xfff;
778 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
779 dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
780 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
781 dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
782 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
783 field &= 0x1f;
784 if (!field)
785 dev_cap->max_gso_sz = 0;
786 else
787 dev_cap->max_gso_sz = 1 << field;
788
789 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSS_OFFSET);
790 if (field & 0x20)
791 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_XOR;
792 if (field & 0x10)
793 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_TOP;
794 field &= 0xf;
795 if (field) {
796 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS;
797 dev_cap->max_rss_tbl_sz = 1 << field;
798 } else
799 dev_cap->max_rss_tbl_sz = 0;
800 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
801 dev_cap->max_rdma_global = 1 << (field & 0x3f);
802 MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
803 dev_cap->local_ca_ack_delay = field & 0x1f;
804 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
805 dev_cap->num_ports = field & 0xf;
806 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
807 dev_cap->max_msg_sz = 1 << (field & 0x1f);
808 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET);
809 if (field & 0x10)
810 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN;
811 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
812 if (field & 0x80)
813 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FS_EN;
814 dev_cap->fs_log_max_ucast_qp_range_size = field & 0x1f;
815 if (field & 0x20)
816 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER;
817 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
818 if (field & 0x80)
819 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_BEACON;
820 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
821 if (field & 0x80)
822 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_IPOIB;
823 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET);
824 dev_cap->fs_max_num_qp_per_entry = field;
825 MLX4_GET(field, outbox, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
826 if (field & 0x1)
827 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QCN;
828 MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
829 dev_cap->stat_rate_support = stat_rate;
830 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
831 if (field & 0x80)
832 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;
833 MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
834 MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
835 dev_cap->flags = flags | (u64)ext_flags << 32;
836 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
837 dev_cap->reserved_uars = field >> 4;
838 MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
839 dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
840 MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
841 dev_cap->min_page_sz = 1 << field;
842
843 MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
844 if (field & 0x80) {
845 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
846 dev_cap->bf_reg_size = 1 << (field & 0x1f);
847 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
848 if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
849 field = 3;
850 dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
851 } else {
852 dev_cap->bf_reg_size = 0;
853 }
854
855 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
856 dev_cap->max_sq_sg = field;
857 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
858 dev_cap->max_sq_desc_sz = size;
859
860 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
861 dev_cap->max_qp_per_mcg = 1 << field;
862 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
863 dev_cap->reserved_mgms = field & 0xf;
864 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
865 dev_cap->max_mcgs = 1 << field;
866 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
867 dev_cap->reserved_pds = field >> 4;
868 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
869 dev_cap->max_pds = 1 << (field & 0x3f);
870 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
871 dev_cap->reserved_xrcds = field >> 4;
872 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
873 dev_cap->max_xrcds = 1 << (field & 0x1f);
874
875 MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
876 dev_cap->rdmarc_entry_sz = size;
877 MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
878 dev_cap->qpc_entry_sz = size;
879 MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
880 dev_cap->aux_entry_sz = size;
881 MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
882 dev_cap->altc_entry_sz = size;
883 MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
884 dev_cap->eqc_entry_sz = size;
885 MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
886 dev_cap->cqc_entry_sz = size;
887 MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
888 dev_cap->srq_entry_sz = size;
889 MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
890 dev_cap->cmpt_entry_sz = size;
891 MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
892 dev_cap->mtt_entry_sz = size;
893 MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
894 dev_cap->dmpt_entry_sz = size;
895
896 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
897 dev_cap->max_srq_sz = 1 << field;
898 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
899 dev_cap->max_qp_sz = 1 << field;
900 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
901 dev_cap->resize_srq = field & 1;
902 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
903 dev_cap->max_rq_sg = field;
904 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
905 dev_cap->max_rq_desc_sz = size;
906 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
907 if (field & (1 << 4))
908 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QOS_VPP;
909 if (field & (1 << 5))
910 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL;
911 if (field & (1 << 6))
912 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
913 if (field & (1 << 7))
914 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
915 MLX4_GET(dev_cap->bmme_flags, outbox,
916 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
917 if (dev_cap->bmme_flags & MLX4_FLAG_ROCE_V1_V2)
918 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ROCE_V1_V2;
919 if (dev_cap->bmme_flags & MLX4_FLAG_PORT_REMAP)
920 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_REMAP;
921 MLX4_GET(field, outbox, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
922 if (field & 0x20)
923 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CONFIG_DEV;
924 if (field & (1 << 2))
925 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
926 MLX4_GET(field, outbox, QUERY_DEV_CAP_PHV_EN_OFFSET);
927 if (field & 0x80)
928 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PHV_EN;
929 if (field & 0x40)
930 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN;
931
932 MLX4_GET(dev_cap->reserved_lkey, outbox,
933 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
934 MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETH_BACKPL_OFFSET);
935 if (field32 & (1 << 0))
936 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
937 if (field32 & (1 << 7))
938 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT;
939 MLX4_GET(field32, outbox, QUERY_DEV_CAP_DIAG_RPRT_PER_PORT);
940 if (field32 & (1 << 17))
941 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT;
942 MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
943 if (field & 1<<6)
944 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;
945 MLX4_GET(field, outbox, QUERY_DEV_CAP_VXLAN);
946 if (field & 1<<3)
947 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS;
948 if (field & (1 << 5))
949 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
950 MLX4_GET(dev_cap->max_icm_sz, outbox,
951 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
952 if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
953 MLX4_GET(dev_cap->max_counters, outbox,
954 QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
955
956 MLX4_GET(field32, outbox,
957 QUERY_DEV_CAP_MAD_DEMUX_OFFSET);
958 if (field32 & (1 << 0))
959 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_MAD_DEMUX;
960
961 MLX4_GET(dev_cap->dmfs_high_rate_qpn_base, outbox,
962 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET);
963 dev_cap->dmfs_high_rate_qpn_base &= MGM_QPN_MASK;
964 MLX4_GET(dev_cap->dmfs_high_rate_qpn_range, outbox,
965 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET);
966 dev_cap->dmfs_high_rate_qpn_range &= MGM_QPN_MASK;
967
968 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
969 dev_cap->rl_caps.num_rates = size;
970 if (dev_cap->rl_caps.num_rates) {
971 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT;
972 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET);
973 dev_cap->rl_caps.max_val = size & 0xfff;
974 dev_cap->rl_caps.max_unit = size >> 14;
975 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET);
976 dev_cap->rl_caps.min_val = size & 0xfff;
977 dev_cap->rl_caps.min_unit = size >> 14;
978 }
979
980 MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
981 if (field32 & (1 << 16))
982 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
983 if (field32 & (1 << 18))
984 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP_SRC_CHECK_LB;
985 if (field32 & (1 << 19))
986 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_LB_SRC_CHK;
987 if (field32 & (1 << 26))
988 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
989 if (field32 & (1 << 20))
990 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FSM;
991 if (field32 & (1 << 21))
992 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_80_VFS;
993
994 for (i = 1; i <= dev_cap->num_ports; i++) {
995 err = mlx4_QUERY_PORT(dev, i, dev_cap->port_cap + i);
996 if (err)
997 goto out;
998 }
999
1000 /*
1001 * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
1002 * we can't use any EQs whose doorbell falls on that page,
1003 * even if the EQ itself isn't reserved.
1004 */
1005 if (dev_cap->num_sys_eqs == 0)
1006 dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
1007 dev_cap->reserved_eqs);
1008 else
1009 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
1010
1011 out:
1012 mlx4_free_cmd_mailbox(dev, mailbox);
1013 return err;
1014 }
1015
1016 void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
1017 {
1018 if (dev_cap->bf_reg_size > 0)
1019 mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
1020 dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
1021 else
1022 mlx4_dbg(dev, "BlueFlame not available\n");
1023
1024 mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
1025 dev_cap->bmme_flags, dev_cap->reserved_lkey);
1026 mlx4_dbg(dev, "Max ICM size %lld MB\n",
1027 (unsigned long long) dev_cap->max_icm_sz >> 20);
1028 mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
1029 dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
1030 mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
1031 dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
1032 mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
1033 dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
1034 mlx4_dbg(dev, "Num sys EQs: %d, max EQs: %d, reserved EQs: %d, entry size: %d\n",
1035 dev_cap->num_sys_eqs, dev_cap->max_eqs, dev_cap->reserved_eqs,
1036 dev_cap->eqc_entry_sz);
1037 mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
1038 dev_cap->reserved_mrws, dev_cap->reserved_mtts);
1039 mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
1040 dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
1041 mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
1042 dev_cap->max_pds, dev_cap->reserved_mgms);
1043 mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
1044 dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
1045 mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
1046 dev_cap->local_ca_ack_delay, 128 << dev_cap->port_cap[1].ib_mtu,
1047 dev_cap->port_cap[1].max_port_width);
1048 mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
1049 dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
1050 mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
1051 dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
1052 mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
1053 mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
1054 mlx4_dbg(dev, "Max RSS Table size: %d\n", dev_cap->max_rss_tbl_sz);
1055 mlx4_dbg(dev, "DMFS high rate steer QPn base: %d\n",
1056 dev_cap->dmfs_high_rate_qpn_base);
1057 mlx4_dbg(dev, "DMFS high rate steer QPn range: %d\n",
1058 dev_cap->dmfs_high_rate_qpn_range);
1059
1060 if (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT) {
1061 struct mlx4_rate_limit_caps *rl_caps = &dev_cap->rl_caps;
1062
1063 mlx4_dbg(dev, "QP Rate-Limit: #rates %d, unit/val max %d/%d, min %d/%d\n",
1064 rl_caps->num_rates, rl_caps->max_unit, rl_caps->max_val,
1065 rl_caps->min_unit, rl_caps->min_val);
1066 }
1067
1068 dump_dev_cap_flags(dev, dev_cap->flags);
1069 dump_dev_cap_flags2(dev, dev_cap->flags2);
1070 }
1071
1072 int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap)
1073 {
1074 struct mlx4_cmd_mailbox *mailbox;
1075 u32 *outbox;
1076 u8 field;
1077 u32 field32;
1078 int err;
1079
1080 mailbox = mlx4_alloc_cmd_mailbox(dev);
1081 if (IS_ERR(mailbox))
1082 return PTR_ERR(mailbox);
1083 outbox = mailbox->buf;
1084
1085 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
1086 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1087 MLX4_CMD_TIME_CLASS_A,
1088 MLX4_CMD_NATIVE);
1089
1090 if (err)
1091 goto out;
1092
1093 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
1094 port_cap->max_vl = field >> 4;
1095 MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
1096 port_cap->ib_mtu = field >> 4;
1097 port_cap->max_port_width = field & 0xf;
1098 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
1099 port_cap->max_gids = 1 << (field & 0xf);
1100 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
1101 port_cap->max_pkeys = 1 << (field & 0xf);
1102 } else {
1103 #define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
1104 #define QUERY_PORT_MTU_OFFSET 0x01
1105 #define QUERY_PORT_ETH_MTU_OFFSET 0x02
1106 #define QUERY_PORT_WIDTH_OFFSET 0x06
1107 #define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
1108 #define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
1109 #define QUERY_PORT_MAX_VL_OFFSET 0x0b
1110 #define QUERY_PORT_MAC_OFFSET 0x10
1111 #define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
1112 #define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
1113 #define QUERY_PORT_TRANS_CODE_OFFSET 0x20
1114
1115 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0, MLX4_CMD_QUERY_PORT,
1116 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1117 if (err)
1118 goto out;
1119
1120 MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1121 port_cap->link_state = (field & 0x80) >> 7;
1122 port_cap->supported_port_types = field & 3;
1123 port_cap->suggested_type = (field >> 3) & 1;
1124 port_cap->default_sense = (field >> 4) & 1;
1125 port_cap->dmfs_optimized_state = (field >> 5) & 1;
1126 MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
1127 port_cap->ib_mtu = field & 0xf;
1128 MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
1129 port_cap->max_port_width = field & 0xf;
1130 MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
1131 port_cap->max_gids = 1 << (field >> 4);
1132 port_cap->max_pkeys = 1 << (field & 0xf);
1133 MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
1134 port_cap->max_vl = field & 0xf;
1135 port_cap->max_tc_eth = field >> 4;
1136 MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
1137 port_cap->log_max_macs = field & 0xf;
1138 port_cap->log_max_vlans = field >> 4;
1139 MLX4_GET(port_cap->eth_mtu, outbox, QUERY_PORT_ETH_MTU_OFFSET);
1140 MLX4_GET(port_cap->def_mac, outbox, QUERY_PORT_MAC_OFFSET);
1141 MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
1142 port_cap->trans_type = field32 >> 24;
1143 port_cap->vendor_oui = field32 & 0xffffff;
1144 MLX4_GET(port_cap->wavelength, outbox, QUERY_PORT_WAVELENGTH_OFFSET);
1145 MLX4_GET(port_cap->trans_code, outbox, QUERY_PORT_TRANS_CODE_OFFSET);
1146 }
1147
1148 out:
1149 mlx4_free_cmd_mailbox(dev, mailbox);
1150 return err;
1151 }
1152
1153 #define DEV_CAP_EXT_2_FLAG_PFC_COUNTERS (1 << 28)
1154 #define DEV_CAP_EXT_2_FLAG_VLAN_CONTROL (1 << 26)
1155 #define DEV_CAP_EXT_2_FLAG_80_VFS (1 << 21)
1156 #define DEV_CAP_EXT_2_FLAG_FSM (1 << 20)
1157
1158 int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
1159 struct mlx4_vhcr *vhcr,
1160 struct mlx4_cmd_mailbox *inbox,
1161 struct mlx4_cmd_mailbox *outbox,
1162 struct mlx4_cmd_info *cmd)
1163 {
1164 u64 flags;
1165 int err = 0;
1166 u8 field;
1167 u16 field16;
1168 u32 bmme_flags, field32;
1169 int real_port;
1170 int slave_port;
1171 int first_port;
1172 struct mlx4_active_ports actv_ports;
1173
1174 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1175 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1176 if (err)
1177 return err;
1178
1179 disable_unsupported_roce_caps(outbox->buf);
1180 /* add port mng change event capability and disable mw type 1
1181 * unconditionally to slaves
1182 */
1183 MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1184 flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
1185 flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
1186 actv_ports = mlx4_get_active_ports(dev, slave);
1187 first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
1188 for (slave_port = 0, real_port = first_port;
1189 real_port < first_port +
1190 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
1191 ++real_port, ++slave_port) {
1192 if (flags & (MLX4_DEV_CAP_FLAG_WOL_PORT1 << real_port))
1193 flags |= MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port;
1194 else
1195 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1196 }
1197 for (; slave_port < dev->caps.num_ports; ++slave_port)
1198 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1199
1200 /* Not exposing RSS IP fragments to guests */
1201 flags &= ~MLX4_DEV_CAP_FLAG_RSS_IP_FRAG;
1202 MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1203
1204 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VL_PORT_OFFSET);
1205 field &= ~0x0F;
1206 field |= bitmap_weight(actv_ports.ports, dev->caps.num_ports) & 0x0F;
1207 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VL_PORT_OFFSET);
1208
1209 /* For guests, disable timestamp */
1210 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1211 field &= 0x7f;
1212 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1213
1214 /* For guests, disable vxlan tunneling and QoS support */
1215 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VXLAN);
1216 field &= 0xd7;
1217 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VXLAN);
1218
1219 /* For guests, disable port BEACON */
1220 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1221 field &= 0x7f;
1222 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1223
1224 /* For guests, report Blueflame disabled */
1225 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
1226 field &= 0x7f;
1227 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
1228
1229 /* For guests, disable mw type 2 and port remap*/
1230 MLX4_GET(bmme_flags, outbox->buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1231 bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN;
1232 bmme_flags &= ~MLX4_FLAG_PORT_REMAP;
1233 MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1234
1235 /* turn off device-managed steering capability if not enabled */
1236 if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
1237 MLX4_GET(field, outbox->buf,
1238 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1239 field &= 0x7f;
1240 MLX4_PUT(outbox->buf, field,
1241 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1242 }
1243
1244 /* turn off ipoib managed steering for guests */
1245 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1246 field &= ~0x80;
1247 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1248
1249 /* turn off host side virt features (VST, FSM, etc) for guests */
1250 MLX4_GET(field32, outbox->buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1251 field32 &= ~(DEV_CAP_EXT_2_FLAG_VLAN_CONTROL | DEV_CAP_EXT_2_FLAG_80_VFS |
1252 DEV_CAP_EXT_2_FLAG_FSM | DEV_CAP_EXT_2_FLAG_PFC_COUNTERS);
1253 MLX4_PUT(outbox->buf, field32, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1254
1255 /* turn off QCN for guests */
1256 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1257 field &= 0xfe;
1258 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1259
1260 /* turn off QP max-rate limiting for guests */
1261 field16 = 0;
1262 MLX4_PUT(outbox->buf, field16, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
1263
1264 /* turn off QoS per VF support for guests */
1265 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1266 field &= 0xef;
1267 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1268
1269 /* turn off ignore FCS feature for guests */
1270 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1271 field &= 0xfb;
1272 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1273
1274 return 0;
1275 }
1276
1277 static void disable_unsupported_roce_caps(void *buf)
1278 {
1279 u32 flags;
1280
1281 MLX4_GET(flags, buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1282 flags &= ~(1UL << 31);
1283 MLX4_PUT(buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1284 MLX4_GET(flags, buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1285 flags &= ~(1UL << 24);
1286 MLX4_PUT(buf, flags, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1287 MLX4_GET(flags, buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1288 flags &= ~(MLX4_FLAG_ROCE_V1_V2);
1289 MLX4_PUT(buf, flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1290 }
1291
1292 int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
1293 struct mlx4_vhcr *vhcr,
1294 struct mlx4_cmd_mailbox *inbox,
1295 struct mlx4_cmd_mailbox *outbox,
1296 struct mlx4_cmd_info *cmd)
1297 {
1298 struct mlx4_priv *priv = mlx4_priv(dev);
1299 u64 def_mac;
1300 u8 port_type;
1301 u16 short_field;
1302 int err;
1303 int admin_link_state;
1304 int port = mlx4_slave_convert_port(dev, slave,
1305 vhcr->in_modifier & 0xFF);
1306
1307 #define MLX4_VF_PORT_NO_LINK_SENSE_MASK 0xE0
1308 #define MLX4_PORT_LINK_UP_MASK 0x80
1309 #define QUERY_PORT_CUR_MAX_PKEY_OFFSET 0x0c
1310 #define QUERY_PORT_CUR_MAX_GID_OFFSET 0x0e
1311
1312 if (port < 0)
1313 return -EINVAL;
1314
1315 /* Protect against untrusted guests: enforce that this is the
1316 * QUERY_PORT general query.
1317 */
1318 if (vhcr->op_modifier || vhcr->in_modifier & ~0xFF)
1319 return -EINVAL;
1320
1321 vhcr->in_modifier = port;
1322
1323 err = mlx4_cmd_box(dev, 0, outbox->dma, vhcr->in_modifier, 0,
1324 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1325 MLX4_CMD_NATIVE);
1326
1327 if (!err && dev->caps.function != slave) {
1328 def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac;
1329 MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET);
1330
1331 /* get port type - currently only eth is enabled */
1332 MLX4_GET(port_type, outbox->buf,
1333 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1334
1335 /* No link sensing allowed */
1336 port_type &= MLX4_VF_PORT_NO_LINK_SENSE_MASK;
1337 /* set port type to currently operating port type */
1338 port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
1339
1340 admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
1341 if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
1342 port_type |= MLX4_PORT_LINK_UP_MASK;
1343 else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
1344 port_type &= ~MLX4_PORT_LINK_UP_MASK;
1345 else if (IFLA_VF_LINK_STATE_AUTO == admin_link_state && mlx4_is_bonded(dev)) {
1346 int other_port = (port == 1) ? 2 : 1;
1347 struct mlx4_port_cap port_cap;
1348
1349 err = mlx4_QUERY_PORT(dev, other_port, &port_cap);
1350 if (err)
1351 goto out;
1352 port_type |= (port_cap.link_state << 7);
1353 }
1354
1355 MLX4_PUT(outbox->buf, port_type,
1356 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1357
1358 if (dev->caps.port_type[vhcr->in_modifier] == MLX4_PORT_TYPE_ETH)
1359 short_field = mlx4_get_slave_num_gids(dev, slave, port);
1360 else
1361 short_field = 1; /* slave max gids */
1362 MLX4_PUT(outbox->buf, short_field,
1363 QUERY_PORT_CUR_MAX_GID_OFFSET);
1364
1365 short_field = dev->caps.pkey_table_len[vhcr->in_modifier];
1366 MLX4_PUT(outbox->buf, short_field,
1367 QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1368 }
1369 out:
1370 return err;
1371 }
1372
1373 int mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev *dev, u8 port,
1374 int *gid_tbl_len, int *pkey_tbl_len)
1375 {
1376 struct mlx4_cmd_mailbox *mailbox;
1377 u32 *outbox;
1378 u16 field;
1379 int err;
1380
1381 mailbox = mlx4_alloc_cmd_mailbox(dev);
1382 if (IS_ERR(mailbox))
1383 return PTR_ERR(mailbox);
1384
1385 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0,
1386 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1387 MLX4_CMD_WRAPPED);
1388 if (err)
1389 goto out;
1390
1391 outbox = mailbox->buf;
1392
1393 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_GID_OFFSET);
1394 *gid_tbl_len = field;
1395
1396 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1397 *pkey_tbl_len = field;
1398
1399 out:
1400 mlx4_free_cmd_mailbox(dev, mailbox);
1401 return err;
1402 }
1403 EXPORT_SYMBOL(mlx4_get_slave_pkey_gid_tbl_len);
1404
1405 int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
1406 {
1407 struct mlx4_cmd_mailbox *mailbox;
1408 struct mlx4_icm_iter iter;
1409 __be64 *pages;
1410 int lg;
1411 int nent = 0;
1412 int i;
1413 int err = 0;
1414 int ts = 0, tc = 0;
1415
1416 mailbox = mlx4_alloc_cmd_mailbox(dev);
1417 if (IS_ERR(mailbox))
1418 return PTR_ERR(mailbox);
1419 pages = mailbox->buf;
1420
1421 for (mlx4_icm_first(icm, &iter);
1422 !mlx4_icm_last(&iter);
1423 mlx4_icm_next(&iter)) {
1424 /*
1425 * We have to pass pages that are aligned to their
1426 * size, so find the least significant 1 in the
1427 * address or size and use that as our log2 size.
1428 */
1429 lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
1430 if (lg < MLX4_ICM_PAGE_SHIFT) {
1431 mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx)\n",
1432 MLX4_ICM_PAGE_SIZE,
1433 (unsigned long long) mlx4_icm_addr(&iter),
1434 mlx4_icm_size(&iter));
1435 err = -EINVAL;
1436 goto out;
1437 }
1438
1439 for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
1440 if (virt != -1) {
1441 pages[nent * 2] = cpu_to_be64(virt);
1442 virt += 1 << lg;
1443 }
1444
1445 pages[nent * 2 + 1] =
1446 cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
1447 (lg - MLX4_ICM_PAGE_SHIFT));
1448 ts += 1 << (lg - 10);
1449 ++tc;
1450
1451 if (++nent == MLX4_MAILBOX_SIZE / 16) {
1452 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1453 MLX4_CMD_TIME_CLASS_B,
1454 MLX4_CMD_NATIVE);
1455 if (err)
1456 goto out;
1457 nent = 0;
1458 }
1459 }
1460 }
1461
1462 if (nent)
1463 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1464 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1465 if (err)
1466 goto out;
1467
1468 switch (op) {
1469 case MLX4_CMD_MAP_FA:
1470 mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW\n", tc, ts);
1471 break;
1472 case MLX4_CMD_MAP_ICM_AUX:
1473 mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux\n", tc, ts);
1474 break;
1475 case MLX4_CMD_MAP_ICM:
1476 mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM\n",
1477 tc, ts, (unsigned long long) virt - (ts << 10));
1478 break;
1479 }
1480
1481 out:
1482 mlx4_free_cmd_mailbox(dev, mailbox);
1483 return err;
1484 }
1485
1486 int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
1487 {
1488 return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
1489 }
1490
1491 int mlx4_UNMAP_FA(struct mlx4_dev *dev)
1492 {
1493 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA,
1494 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1495 }
1496
1497
1498 int mlx4_RUN_FW(struct mlx4_dev *dev)
1499 {
1500 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW,
1501 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1502 }
1503
1504 int mlx4_QUERY_FW(struct mlx4_dev *dev)
1505 {
1506 struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
1507 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
1508 struct mlx4_cmd_mailbox *mailbox;
1509 u32 *outbox;
1510 int err = 0;
1511 u64 fw_ver;
1512 u16 cmd_if_rev;
1513 u8 lg;
1514
1515 #define QUERY_FW_OUT_SIZE 0x100
1516 #define QUERY_FW_VER_OFFSET 0x00
1517 #define QUERY_FW_PPF_ID 0x09
1518 #define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
1519 #define QUERY_FW_MAX_CMD_OFFSET 0x0f
1520 #define QUERY_FW_ERR_START_OFFSET 0x30
1521 #define QUERY_FW_ERR_SIZE_OFFSET 0x38
1522 #define QUERY_FW_ERR_BAR_OFFSET 0x3c
1523
1524 #define QUERY_FW_SIZE_OFFSET 0x00
1525 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
1526 #define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
1527
1528 #define QUERY_FW_COMM_BASE_OFFSET 0x40
1529 #define QUERY_FW_COMM_BAR_OFFSET 0x48
1530
1531 #define QUERY_FW_CLOCK_OFFSET 0x50
1532 #define QUERY_FW_CLOCK_BAR 0x58
1533
1534 mailbox = mlx4_alloc_cmd_mailbox(dev);
1535 if (IS_ERR(mailbox))
1536 return PTR_ERR(mailbox);
1537 outbox = mailbox->buf;
1538
1539 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1540 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1541 if (err)
1542 goto out;
1543
1544 MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
1545 /*
1546 * FW subminor version is at more significant bits than minor
1547 * version, so swap here.
1548 */
1549 dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
1550 ((fw_ver & 0xffff0000ull) >> 16) |
1551 ((fw_ver & 0x0000ffffull) << 16);
1552
1553 MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
1554 dev->caps.function = lg;
1555
1556 if (mlx4_is_slave(dev))
1557 goto out;
1558
1559
1560 MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
1561 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
1562 cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
1563 mlx4_err(dev, "Installed FW has unsupported command interface revision %d\n",
1564 cmd_if_rev);
1565 mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
1566 (int) (dev->caps.fw_ver >> 32),
1567 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1568 (int) dev->caps.fw_ver & 0xffff);
1569 mlx4_err(dev, "This driver version supports only revisions %d to %d\n",
1570 MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
1571 err = -ENODEV;
1572 goto out;
1573 }
1574
1575 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
1576 dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
1577
1578 MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
1579 cmd->max_cmds = 1 << lg;
1580
1581 mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
1582 (int) (dev->caps.fw_ver >> 32),
1583 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1584 (int) dev->caps.fw_ver & 0xffff,
1585 cmd_if_rev, cmd->max_cmds);
1586
1587 MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
1588 MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
1589 MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
1590 fw->catas_bar = (fw->catas_bar >> 6) * 2;
1591
1592 mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
1593 (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
1594
1595 MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
1596 MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
1597 MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
1598 fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
1599
1600 MLX4_GET(fw->comm_base, outbox, QUERY_FW_COMM_BASE_OFFSET);
1601 MLX4_GET(fw->comm_bar, outbox, QUERY_FW_COMM_BAR_OFFSET);
1602 fw->comm_bar = (fw->comm_bar >> 6) * 2;
1603 mlx4_dbg(dev, "Communication vector bar:%d offset:0x%llx\n",
1604 fw->comm_bar, fw->comm_base);
1605 mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
1606
1607 MLX4_GET(fw->clock_offset, outbox, QUERY_FW_CLOCK_OFFSET);
1608 MLX4_GET(fw->clock_bar, outbox, QUERY_FW_CLOCK_BAR);
1609 fw->clock_bar = (fw->clock_bar >> 6) * 2;
1610 mlx4_dbg(dev, "Internal clock bar:%d offset:0x%llx\n",
1611 fw->clock_bar, fw->clock_offset);
1612
1613 /*
1614 * Round up number of system pages needed in case
1615 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
1616 */
1617 fw->fw_pages =
1618 ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
1619 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
1620
1621 mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
1622 (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
1623
1624 out:
1625 mlx4_free_cmd_mailbox(dev, mailbox);
1626 return err;
1627 }
1628
1629 int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
1630 struct mlx4_vhcr *vhcr,
1631 struct mlx4_cmd_mailbox *inbox,
1632 struct mlx4_cmd_mailbox *outbox,
1633 struct mlx4_cmd_info *cmd)
1634 {
1635 u8 *outbuf;
1636 int err;
1637
1638 outbuf = outbox->buf;
1639 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1640 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1641 if (err)
1642 return err;
1643
1644 /* for slaves, set pci PPF ID to invalid and zero out everything
1645 * else except FW version */
1646 outbuf[0] = outbuf[1] = 0;
1647 memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
1648 outbuf[QUERY_FW_PPF_ID] = MLX4_INVALID_SLAVE_ID;
1649
1650 return 0;
1651 }
1652
1653 static void get_board_id(void *vsd, char *board_id)
1654 {
1655 int i;
1656
1657 #define VSD_OFFSET_SIG1 0x00
1658 #define VSD_OFFSET_SIG2 0xde
1659 #define VSD_OFFSET_MLX_BOARD_ID 0xd0
1660 #define VSD_OFFSET_TS_BOARD_ID 0x20
1661
1662 #define VSD_SIGNATURE_TOPSPIN 0x5ad
1663
1664 memset(board_id, 0, MLX4_BOARD_ID_LEN);
1665
1666 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1667 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1668 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
1669 } else {
1670 /*
1671 * The board ID is a string but the firmware byte
1672 * swaps each 4-byte word before passing it back to
1673 * us. Therefore we need to swab it before printing.
1674 */
1675 u32 *bid_u32 = (u32 *)board_id;
1676
1677 for (i = 0; i < 4; ++i) {
1678 u32 *addr;
1679 u32 val;
1680
1681 addr = (u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4);
1682 val = get_unaligned(addr);
1683 val = swab32(val);
1684 put_unaligned(val, &bid_u32[i]);
1685 }
1686 }
1687 }
1688
1689 int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
1690 {
1691 struct mlx4_cmd_mailbox *mailbox;
1692 u32 *outbox;
1693 int err;
1694
1695 #define QUERY_ADAPTER_OUT_SIZE 0x100
1696 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
1697 #define QUERY_ADAPTER_VSD_OFFSET 0x20
1698
1699 mailbox = mlx4_alloc_cmd_mailbox(dev);
1700 if (IS_ERR(mailbox))
1701 return PTR_ERR(mailbox);
1702 outbox = mailbox->buf;
1703
1704 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
1705 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1706 if (err)
1707 goto out;
1708
1709 MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1710
1711 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1712 adapter->board_id);
1713
1714 out:
1715 mlx4_free_cmd_mailbox(dev, mailbox);
1716 return err;
1717 }
1718
1719 int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
1720 {
1721 struct mlx4_cmd_mailbox *mailbox;
1722 __be32 *inbox;
1723 int err;
1724 static const u8 a0_dmfs_hw_steering[] = {
1725 [MLX4_STEERING_DMFS_A0_DEFAULT] = 0,
1726 [MLX4_STEERING_DMFS_A0_DYNAMIC] = 1,
1727 [MLX4_STEERING_DMFS_A0_STATIC] = 2,
1728 [MLX4_STEERING_DMFS_A0_DISABLE] = 3
1729 };
1730
1731 #define INIT_HCA_IN_SIZE 0x200
1732 #define INIT_HCA_VERSION_OFFSET 0x000
1733 #define INIT_HCA_VERSION 2
1734 #define INIT_HCA_VXLAN_OFFSET 0x0c
1735 #define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
1736 #define INIT_HCA_FLAGS_OFFSET 0x014
1737 #define INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET 0x018
1738 #define INIT_HCA_QPC_OFFSET 0x020
1739 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1740 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1741 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1742 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1743 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1744 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1745 #define INIT_HCA_EQE_CQE_OFFSETS (INIT_HCA_QPC_OFFSET + 0x38)
1746 #define INIT_HCA_EQE_CQE_STRIDE_OFFSET (INIT_HCA_QPC_OFFSET + 0x3b)
1747 #define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1748 #define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1749 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1750 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1751 #define INIT_HCA_NUM_SYS_EQS_OFFSET (INIT_HCA_QPC_OFFSET + 0x6a)
1752 #define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1753 #define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
1754 #define INIT_HCA_MCAST_OFFSET 0x0c0
1755 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1756 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1757 #define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
1758 #define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
1759 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1760 #define INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN 0x6
1761 #define INIT_HCA_FS_PARAM_OFFSET 0x1d0
1762 #define INIT_HCA_FS_BASE_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x00)
1763 #define INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x12)
1764 #define INIT_HCA_FS_A0_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x18)
1765 #define INIT_HCA_FS_LOG_TABLE_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x1b)
1766 #define INIT_HCA_FS_ETH_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x21)
1767 #define INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x22)
1768 #define INIT_HCA_FS_IB_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x25)
1769 #define INIT_HCA_FS_IB_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x26)
1770 #define INIT_HCA_TPT_OFFSET 0x0f0
1771 #define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1772 #define INIT_HCA_TPT_MW_OFFSET (INIT_HCA_TPT_OFFSET + 0x08)
1773 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1774 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1775 #define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
1776 #define INIT_HCA_UAR_OFFSET 0x120
1777 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1778 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1779
1780 mailbox = mlx4_alloc_cmd_mailbox(dev);
1781 if (IS_ERR(mailbox))
1782 return PTR_ERR(mailbox);
1783 inbox = mailbox->buf;
1784
1785 *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
1786
1787 *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
1788 (ilog2(cache_line_size()) - 4) << 5;
1789
1790 #if defined(__LITTLE_ENDIAN)
1791 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1792 #elif defined(__BIG_ENDIAN)
1793 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1794 #else
1795 #error Host endianness not defined
1796 #endif
1797 /* Check port for UD address vector: */
1798 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1799
1800 /* Enable IPoIB checksumming if we can: */
1801 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
1802 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
1803
1804 /* Enable QoS support if module parameter set */
1805 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG && enable_qos)
1806 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
1807
1808 /* enable counters */
1809 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1810 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
1811
1812 /* Enable RSS spread to fragmented IP packets when supported */
1813 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_RSS_IP_FRAG)
1814 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 13);
1815
1816 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
1817 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_EQE) {
1818 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 29);
1819 dev->caps.eqe_size = 64;
1820 dev->caps.eqe_factor = 1;
1821 } else {
1822 dev->caps.eqe_size = 32;
1823 dev->caps.eqe_factor = 0;
1824 }
1825
1826 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_CQE) {
1827 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 30);
1828 dev->caps.cqe_size = 64;
1829 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1830 } else {
1831 dev->caps.cqe_size = 32;
1832 }
1833
1834 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
1835 if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) &&
1836 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) {
1837 dev->caps.eqe_size = cache_line_size();
1838 dev->caps.cqe_size = cache_line_size();
1839 dev->caps.eqe_factor = 0;
1840 MLX4_PUT(inbox, (u8)((ilog2(dev->caps.eqe_size) - 5) << 4 |
1841 (ilog2(dev->caps.eqe_size) - 5)),
1842 INIT_HCA_EQE_CQE_STRIDE_OFFSET);
1843
1844 /* User still need to know to support CQE > 32B */
1845 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1846 }
1847
1848 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT)
1849 *(inbox + INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET / 4) |= cpu_to_be32(1 << 31);
1850
1851 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1852
1853 MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1854 MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1855 MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1856 MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1857 MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1858 MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1859 MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
1860 MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
1861 MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1862 MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1863 MLX4_PUT(inbox, param->num_sys_eqs, INIT_HCA_NUM_SYS_EQS_OFFSET);
1864 MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
1865 MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
1866
1867 /* steering attributes */
1868 if (dev->caps.steering_mode ==
1869 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1870 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |=
1871 cpu_to_be32(1 <<
1872 INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN);
1873
1874 MLX4_PUT(inbox, param->mc_base, INIT_HCA_FS_BASE_OFFSET);
1875 MLX4_PUT(inbox, param->log_mc_entry_sz,
1876 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
1877 MLX4_PUT(inbox, param->log_mc_table_sz,
1878 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
1879 /* Enable Ethernet flow steering
1880 * with udp unicast and tcp unicast
1881 */
1882 if (dev->caps.dmfs_high_steer_mode !=
1883 MLX4_STEERING_DMFS_A0_STATIC)
1884 MLX4_PUT(inbox,
1885 (u8)(MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1886 INIT_HCA_FS_ETH_BITS_OFFSET);
1887 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1888 INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET);
1889 /* Enable IPoIB flow steering
1890 * with udp unicast and tcp unicast
1891 */
1892 MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1893 INIT_HCA_FS_IB_BITS_OFFSET);
1894 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1895 INIT_HCA_FS_IB_NUM_ADDRS_OFFSET);
1896
1897 if (dev->caps.dmfs_high_steer_mode !=
1898 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1899 MLX4_PUT(inbox,
1900 ((u8)(a0_dmfs_hw_steering[dev->caps.dmfs_high_steer_mode]
1901 << 6)),
1902 INIT_HCA_FS_A0_OFFSET);
1903 } else {
1904 MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
1905 MLX4_PUT(inbox, param->log_mc_entry_sz,
1906 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1907 MLX4_PUT(inbox, param->log_mc_hash_sz,
1908 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
1909 MLX4_PUT(inbox, param->log_mc_table_sz,
1910 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1911 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0)
1912 MLX4_PUT(inbox, (u8) (1 << 3),
1913 INIT_HCA_UC_STEERING_OFFSET);
1914 }
1915
1916 /* TPT attributes */
1917
1918 MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
1919 MLX4_PUT(inbox, param->mw_enabled, INIT_HCA_TPT_MW_OFFSET);
1920 MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
1921 MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
1922 MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
1923
1924 /* UAR attributes */
1925
1926 MLX4_PUT(inbox, param->uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1927 MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
1928
1929 /* set parser VXLAN attributes */
1930 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) {
1931 u8 parser_params = 0;
1932 MLX4_PUT(inbox, parser_params, INIT_HCA_VXLAN_OFFSET);
1933 }
1934
1935 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA,
1936 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
1937
1938 if (err)
1939 mlx4_err(dev, "INIT_HCA returns %d\n", err);
1940
1941 mlx4_free_cmd_mailbox(dev, mailbox);
1942 return err;
1943 }
1944
1945 int mlx4_QUERY_HCA(struct mlx4_dev *dev,
1946 struct mlx4_init_hca_param *param)
1947 {
1948 struct mlx4_cmd_mailbox *mailbox;
1949 __be32 *outbox;
1950 u32 dword_field;
1951 int err;
1952 u8 byte_field;
1953 static const u8 a0_dmfs_query_hw_steering[] = {
1954 [0] = MLX4_STEERING_DMFS_A0_DEFAULT,
1955 [1] = MLX4_STEERING_DMFS_A0_DYNAMIC,
1956 [2] = MLX4_STEERING_DMFS_A0_STATIC,
1957 [3] = MLX4_STEERING_DMFS_A0_DISABLE
1958 };
1959
1960 #define QUERY_HCA_GLOBAL_CAPS_OFFSET 0x04
1961 #define QUERY_HCA_CORE_CLOCK_OFFSET 0x0c
1962
1963 mailbox = mlx4_alloc_cmd_mailbox(dev);
1964 if (IS_ERR(mailbox))
1965 return PTR_ERR(mailbox);
1966 outbox = mailbox->buf;
1967
1968 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
1969 MLX4_CMD_QUERY_HCA,
1970 MLX4_CMD_TIME_CLASS_B,
1971 !mlx4_is_slave(dev));
1972 if (err)
1973 goto out;
1974
1975 MLX4_GET(param->global_caps, outbox, QUERY_HCA_GLOBAL_CAPS_OFFSET);
1976 MLX4_GET(param->hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
1977
1978 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1979
1980 MLX4_GET(param->qpc_base, outbox, INIT_HCA_QPC_BASE_OFFSET);
1981 MLX4_GET(param->log_num_qps, outbox, INIT_HCA_LOG_QP_OFFSET);
1982 MLX4_GET(param->srqc_base, outbox, INIT_HCA_SRQC_BASE_OFFSET);
1983 MLX4_GET(param->log_num_srqs, outbox, INIT_HCA_LOG_SRQ_OFFSET);
1984 MLX4_GET(param->cqc_base, outbox, INIT_HCA_CQC_BASE_OFFSET);
1985 MLX4_GET(param->log_num_cqs, outbox, INIT_HCA_LOG_CQ_OFFSET);
1986 MLX4_GET(param->altc_base, outbox, INIT_HCA_ALTC_BASE_OFFSET);
1987 MLX4_GET(param->auxc_base, outbox, INIT_HCA_AUXC_BASE_OFFSET);
1988 MLX4_GET(param->eqc_base, outbox, INIT_HCA_EQC_BASE_OFFSET);
1989 MLX4_GET(param->log_num_eqs, outbox, INIT_HCA_LOG_EQ_OFFSET);
1990 MLX4_GET(param->num_sys_eqs, outbox, INIT_HCA_NUM_SYS_EQS_OFFSET);
1991 MLX4_GET(param->rdmarc_base, outbox, INIT_HCA_RDMARC_BASE_OFFSET);
1992 MLX4_GET(param->log_rd_per_qp, outbox, INIT_HCA_LOG_RD_OFFSET);
1993
1994 MLX4_GET(dword_field, outbox, INIT_HCA_FLAGS_OFFSET);
1995 if (dword_field & (1 << INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN)) {
1996 param->steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1997 } else {
1998 MLX4_GET(byte_field, outbox, INIT_HCA_UC_STEERING_OFFSET);
1999 if (byte_field & 0x8)
2000 param->steering_mode = MLX4_STEERING_MODE_B0;
2001 else
2002 param->steering_mode = MLX4_STEERING_MODE_A0;
2003 }
2004
2005 if (dword_field & (1 << 13))
2006 param->rss_ip_frags = 1;
2007
2008 /* steering attributes */
2009 if (param->steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2010 MLX4_GET(param->mc_base, outbox, INIT_HCA_FS_BASE_OFFSET);
2011 MLX4_GET(param->log_mc_entry_sz, outbox,
2012 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
2013 MLX4_GET(param->log_mc_table_sz, outbox,
2014 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
2015 MLX4_GET(byte_field, outbox,
2016 INIT_HCA_FS_A0_OFFSET);
2017 param->dmfs_high_steer_mode =
2018 a0_dmfs_query_hw_steering[(byte_field >> 6) & 3];
2019 } else {
2020 MLX4_GET(param->mc_base, outbox, INIT_HCA_MC_BASE_OFFSET);
2021 MLX4_GET(param->log_mc_entry_sz, outbox,
2022 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
2023 MLX4_GET(param->log_mc_hash_sz, outbox,
2024 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
2025 MLX4_GET(param->log_mc_table_sz, outbox,
2026 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
2027 }
2028
2029 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
2030 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_OFFSETS);
2031 if (byte_field & 0x20) /* 64-bytes eqe enabled */
2032 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_EQE_ENABLED;
2033 if (byte_field & 0x40) /* 64-bytes cqe enabled */
2034 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_CQE_ENABLED;
2035
2036 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
2037 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_STRIDE_OFFSET);
2038 if (byte_field) {
2039 param->dev_cap_enabled |= MLX4_DEV_CAP_EQE_STRIDE_ENABLED;
2040 param->dev_cap_enabled |= MLX4_DEV_CAP_CQE_STRIDE_ENABLED;
2041 param->cqe_size = 1 << ((byte_field &
2042 MLX4_CQE_SIZE_MASK_STRIDE) + 5);
2043 param->eqe_size = 1 << (((byte_field &
2044 MLX4_EQE_SIZE_MASK_STRIDE) >> 4) + 5);
2045 }
2046
2047 /* TPT attributes */
2048
2049 MLX4_GET(param->dmpt_base, outbox, INIT_HCA_DMPT_BASE_OFFSET);
2050 MLX4_GET(param->mw_enabled, outbox, INIT_HCA_TPT_MW_OFFSET);
2051 MLX4_GET(param->log_mpt_sz, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
2052 MLX4_GET(param->mtt_base, outbox, INIT_HCA_MTT_BASE_OFFSET);
2053 MLX4_GET(param->cmpt_base, outbox, INIT_HCA_CMPT_BASE_OFFSET);
2054
2055 /* UAR attributes */
2056
2057 MLX4_GET(param->uar_page_sz, outbox, INIT_HCA_UAR_PAGE_SZ_OFFSET);
2058 MLX4_GET(param->log_uar_sz, outbox, INIT_HCA_LOG_UAR_SZ_OFFSET);
2059
2060 /* phv_check enable */
2061 MLX4_GET(byte_field, outbox, INIT_HCA_CACHELINE_SZ_OFFSET);
2062 if (byte_field & 0x2)
2063 param->phv_check_en = 1;
2064 out:
2065 mlx4_free_cmd_mailbox(dev, mailbox);
2066
2067 return err;
2068 }
2069
2070 static int mlx4_hca_core_clock_update(struct mlx4_dev *dev)
2071 {
2072 struct mlx4_cmd_mailbox *mailbox;
2073 __be32 *outbox;
2074 int err;
2075
2076 mailbox = mlx4_alloc_cmd_mailbox(dev);
2077 if (IS_ERR(mailbox)) {
2078 mlx4_warn(dev, "hca_core_clock mailbox allocation failed\n");
2079 return PTR_ERR(mailbox);
2080 }
2081 outbox = mailbox->buf;
2082
2083 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2084 MLX4_CMD_QUERY_HCA,
2085 MLX4_CMD_TIME_CLASS_B,
2086 !mlx4_is_slave(dev));
2087 if (err) {
2088 mlx4_warn(dev, "hca_core_clock update failed\n");
2089 goto out;
2090 }
2091
2092 MLX4_GET(dev->caps.hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
2093
2094 out:
2095 mlx4_free_cmd_mailbox(dev, mailbox);
2096
2097 return err;
2098 }
2099
2100 /* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
2101 * and real QP0 are active, so that the paravirtualized QP0 is ready
2102 * to operate */
2103 static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
2104 {
2105 struct mlx4_priv *priv = mlx4_priv(dev);
2106 /* irrelevant if not infiniband */
2107 if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
2108 priv->mfunc.master.qp0_state[port].qp0_active)
2109 return 1;
2110 return 0;
2111 }
2112
2113 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
2114 struct mlx4_vhcr *vhcr,
2115 struct mlx4_cmd_mailbox *inbox,
2116 struct mlx4_cmd_mailbox *outbox,
2117 struct mlx4_cmd_info *cmd)
2118 {
2119 struct mlx4_priv *priv = mlx4_priv(dev);
2120 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2121 int err;
2122
2123 if (port < 0)
2124 return -EINVAL;
2125
2126 if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
2127 return 0;
2128
2129 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2130 /* Enable port only if it was previously disabled */
2131 if (!priv->mfunc.master.init_port_ref[port]) {
2132 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2133 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2134 if (err)
2135 return err;
2136 }
2137 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2138 } else {
2139 if (slave == mlx4_master_func_num(dev)) {
2140 if (check_qp0_state(dev, slave, port) &&
2141 !priv->mfunc.master.qp0_state[port].port_active) {
2142 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2143 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2144 if (err)
2145 return err;
2146 priv->mfunc.master.qp0_state[port].port_active = 1;
2147 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2148 }
2149 } else
2150 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2151 }
2152 ++priv->mfunc.master.init_port_ref[port];
2153 return 0;
2154 }
2155
2156 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
2157 {
2158 struct mlx4_cmd_mailbox *mailbox;
2159 u32 *inbox;
2160 int err;
2161 u32 flags;
2162 u16 field;
2163
2164 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
2165 #define INIT_PORT_IN_SIZE 256
2166 #define INIT_PORT_FLAGS_OFFSET 0x00
2167 #define INIT_PORT_FLAG_SIG (1 << 18)
2168 #define INIT_PORT_FLAG_NG (1 << 17)
2169 #define INIT_PORT_FLAG_G0 (1 << 16)
2170 #define INIT_PORT_VL_SHIFT 4
2171 #define INIT_PORT_PORT_WIDTH_SHIFT 8
2172 #define INIT_PORT_MTU_OFFSET 0x04
2173 #define INIT_PORT_MAX_GID_OFFSET 0x06
2174 #define INIT_PORT_MAX_PKEY_OFFSET 0x0a
2175 #define INIT_PORT_GUID0_OFFSET 0x10
2176 #define INIT_PORT_NODE_GUID_OFFSET 0x18
2177 #define INIT_PORT_SI_GUID_OFFSET 0x20
2178
2179 mailbox = mlx4_alloc_cmd_mailbox(dev);
2180 if (IS_ERR(mailbox))
2181 return PTR_ERR(mailbox);
2182 inbox = mailbox->buf;
2183
2184 flags = 0;
2185 flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
2186 flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
2187 MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
2188
2189 field = 128 << dev->caps.ib_mtu_cap[port];
2190 MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
2191 field = dev->caps.gid_table_len[port];
2192 MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
2193 field = dev->caps.pkey_table_len[port];
2194 MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
2195
2196 err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
2197 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2198
2199 mlx4_free_cmd_mailbox(dev, mailbox);
2200 } else
2201 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2202 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2203
2204 if (!err)
2205 mlx4_hca_core_clock_update(dev);
2206
2207 return err;
2208 }
2209 EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
2210
2211 int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
2212 struct mlx4_vhcr *vhcr,
2213 struct mlx4_cmd_mailbox *inbox,
2214 struct mlx4_cmd_mailbox *outbox,
2215 struct mlx4_cmd_info *cmd)
2216 {
2217 struct mlx4_priv *priv = mlx4_priv(dev);
2218 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2219 int err;
2220
2221 if (port < 0)
2222 return -EINVAL;
2223
2224 if (!(priv->mfunc.master.slave_state[slave].init_port_mask &
2225 (1 << port)))
2226 return 0;
2227
2228 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2229 if (priv->mfunc.master.init_port_ref[port] == 1) {
2230 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2231 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2232 if (err)
2233 return err;
2234 }
2235 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2236 } else {
2237 /* infiniband port */
2238 if (slave == mlx4_master_func_num(dev)) {
2239 if (!priv->mfunc.master.qp0_state[port].qp0_active &&
2240 priv->mfunc.master.qp0_state[port].port_active) {
2241 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2242 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2243 if (err)
2244 return err;
2245 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2246 priv->mfunc.master.qp0_state[port].port_active = 0;
2247 }
2248 } else
2249 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2250 }
2251 --priv->mfunc.master.init_port_ref[port];
2252 return 0;
2253 }
2254
2255 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
2256 {
2257 return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2258 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2259 }
2260 EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
2261
2262 int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
2263 {
2264 return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA,
2265 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
2266 }
2267
2268 struct mlx4_config_dev {
2269 __be32 update_flags;
2270 __be32 rsvd1[3];
2271 __be16 vxlan_udp_dport;
2272 __be16 rsvd2;
2273 __be16 roce_v2_entropy;
2274 __be16 roce_v2_udp_dport;
2275 __be32 roce_flags;
2276 __be32 rsvd4[25];
2277 __be16 rsvd5;
2278 u8 rsvd6;
2279 u8 rx_checksum_val;
2280 };
2281
2282 #define MLX4_VXLAN_UDP_DPORT (1 << 0)
2283 #define MLX4_ROCE_V2_UDP_DPORT BIT(3)
2284 #define MLX4_DISABLE_RX_PORT BIT(18)
2285
2286 static int mlx4_CONFIG_DEV_set(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2287 {
2288 int err;
2289 struct mlx4_cmd_mailbox *mailbox;
2290
2291 mailbox = mlx4_alloc_cmd_mailbox(dev);
2292 if (IS_ERR(mailbox))
2293 return PTR_ERR(mailbox);
2294
2295 memcpy(mailbox->buf, config_dev, sizeof(*config_dev));
2296
2297 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_CONFIG_DEV,
2298 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2299
2300 mlx4_free_cmd_mailbox(dev, mailbox);
2301 return err;
2302 }
2303
2304 static int mlx4_CONFIG_DEV_get(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2305 {
2306 int err;
2307 struct mlx4_cmd_mailbox *mailbox;
2308
2309 mailbox = mlx4_alloc_cmd_mailbox(dev);
2310 if (IS_ERR(mailbox))
2311 return PTR_ERR(mailbox);
2312
2313 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 1, MLX4_CMD_CONFIG_DEV,
2314 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2315
2316 if (!err)
2317 memcpy(config_dev, mailbox->buf, sizeof(*config_dev));
2318
2319 mlx4_free_cmd_mailbox(dev, mailbox);
2320 return err;
2321 }
2322
2323 /* Conversion between the HW values and the actual functionality.
2324 * The value represented by the array index,
2325 * and the functionality determined by the flags.
2326 */
2327 static const u8 config_dev_csum_flags[] = {
2328 [0] = 0,
2329 [1] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP,
2330 [2] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP |
2331 MLX4_RX_CSUM_MODE_L4,
2332 [3] = MLX4_RX_CSUM_MODE_L4 |
2333 MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP |
2334 MLX4_RX_CSUM_MODE_MULTI_VLAN
2335 };
2336
2337 int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
2338 struct mlx4_config_dev_params *params)
2339 {
2340 struct mlx4_config_dev config_dev = {0};
2341 int err;
2342 u8 csum_mask;
2343
2344 #define CONFIG_DEV_RX_CSUM_MODE_MASK 0x7
2345 #define CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET 0
2346 #define CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET 4
2347
2348 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CONFIG_DEV))
2349 return -ENOTSUPP;
2350
2351 err = mlx4_CONFIG_DEV_get(dev, &config_dev);
2352 if (err)
2353 return err;
2354
2355 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET) &
2356 CONFIG_DEV_RX_CSUM_MODE_MASK;
2357
2358 if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
2359 return -EINVAL;
2360 params->rx_csum_flags_port_1 = config_dev_csum_flags[csum_mask];
2361
2362 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET) &
2363 CONFIG_DEV_RX_CSUM_MODE_MASK;
2364
2365 if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
2366 return -EINVAL;
2367 params->rx_csum_flags_port_2 = config_dev_csum_flags[csum_mask];
2368
2369 params->vxlan_udp_dport = be16_to_cpu(config_dev.vxlan_udp_dport);
2370
2371 return 0;
2372 }
2373 EXPORT_SYMBOL_GPL(mlx4_config_dev_retrieval);
2374
2375 int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port)
2376 {
2377 struct mlx4_config_dev config_dev;
2378
2379 memset(&config_dev, 0, sizeof(config_dev));
2380 config_dev.update_flags = cpu_to_be32(MLX4_VXLAN_UDP_DPORT);
2381 config_dev.vxlan_udp_dport = udp_port;
2382
2383 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2384 }
2385 EXPORT_SYMBOL_GPL(mlx4_config_vxlan_port);
2386
2387 #define CONFIG_DISABLE_RX_PORT BIT(15)
2388 int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis)
2389 {
2390 struct mlx4_config_dev config_dev;
2391
2392 memset(&config_dev, 0, sizeof(config_dev));
2393 config_dev.update_flags = cpu_to_be32(MLX4_DISABLE_RX_PORT);
2394 if (dis)
2395 config_dev.roce_flags =
2396 cpu_to_be32(CONFIG_DISABLE_RX_PORT);
2397
2398 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2399 }
2400
2401 int mlx4_config_roce_v2_port(struct mlx4_dev *dev, u16 udp_port)
2402 {
2403 struct mlx4_config_dev config_dev;
2404
2405 memset(&config_dev, 0, sizeof(config_dev));
2406 config_dev.update_flags = cpu_to_be32(MLX4_ROCE_V2_UDP_DPORT);
2407 config_dev.roce_v2_udp_dport = cpu_to_be16(udp_port);
2408
2409 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2410 }
2411 EXPORT_SYMBOL_GPL(mlx4_config_roce_v2_port);
2412
2413 int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2)
2414 {
2415 struct mlx4_cmd_mailbox *mailbox;
2416 struct {
2417 __be32 v_port1;
2418 __be32 v_port2;
2419 } *v2p;
2420 int err;
2421
2422 mailbox = mlx4_alloc_cmd_mailbox(dev);
2423 if (IS_ERR(mailbox))
2424 return -ENOMEM;
2425
2426 v2p = mailbox->buf;
2427 v2p->v_port1 = cpu_to_be32(port1);
2428 v2p->v_port2 = cpu_to_be32(port2);
2429
2430 err = mlx4_cmd(dev, mailbox->dma, 0,
2431 MLX4_SET_PORT_VIRT2PHY, MLX4_CMD_VIRT_PORT_MAP,
2432 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2433
2434 mlx4_free_cmd_mailbox(dev, mailbox);
2435 return err;
2436 }
2437
2438
2439 int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
2440 {
2441 int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
2442 MLX4_CMD_SET_ICM_SIZE,
2443 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2444 if (ret)
2445 return ret;
2446
2447 /*
2448 * Round up number of system pages needed in case
2449 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
2450 */
2451 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
2452 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
2453
2454 return 0;
2455 }
2456
2457 int mlx4_NOP(struct mlx4_dev *dev)
2458 {
2459 /* Input modifier of 0x1f means "finish as soon as possible." */
2460 return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, MLX4_CMD_TIME_CLASS_A,
2461 MLX4_CMD_NATIVE);
2462 }
2463
2464 int mlx4_query_diag_counters(struct mlx4_dev *dev, u8 op_modifier,
2465 const u32 offset[],
2466 u32 value[], size_t array_len, u8 port)
2467 {
2468 struct mlx4_cmd_mailbox *mailbox;
2469 u32 *outbox;
2470 size_t i;
2471 int ret;
2472
2473 mailbox = mlx4_alloc_cmd_mailbox(dev);
2474 if (IS_ERR(mailbox))
2475 return PTR_ERR(mailbox);
2476
2477 outbox = mailbox->buf;
2478
2479 ret = mlx4_cmd_box(dev, 0, mailbox->dma, port, op_modifier,
2480 MLX4_CMD_DIAG_RPRT, MLX4_CMD_TIME_CLASS_A,
2481 MLX4_CMD_NATIVE);
2482 if (ret)
2483 goto out;
2484
2485 for (i = 0; i < array_len; i++) {
2486 if (offset[i] > MLX4_MAILBOX_SIZE) {
2487 ret = -EINVAL;
2488 goto out;
2489 }
2490
2491 MLX4_GET(value[i], outbox, offset[i]);
2492 }
2493
2494 out:
2495 mlx4_free_cmd_mailbox(dev, mailbox);
2496 return ret;
2497 }
2498 EXPORT_SYMBOL(mlx4_query_diag_counters);
2499
2500 int mlx4_get_phys_port_id(struct mlx4_dev *dev)
2501 {
2502 u8 port;
2503 u32 *outbox;
2504 struct mlx4_cmd_mailbox *mailbox;
2505 u32 in_mod;
2506 u32 guid_hi, guid_lo;
2507 int err, ret = 0;
2508 #define MOD_STAT_CFG_PORT_OFFSET 8
2509 #define MOD_STAT_CFG_GUID_H 0X14
2510 #define MOD_STAT_CFG_GUID_L 0X1c
2511
2512 mailbox = mlx4_alloc_cmd_mailbox(dev);
2513 if (IS_ERR(mailbox))
2514 return PTR_ERR(mailbox);
2515 outbox = mailbox->buf;
2516
2517 for (port = 1; port <= dev->caps.num_ports; port++) {
2518 in_mod = port << MOD_STAT_CFG_PORT_OFFSET;
2519 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_mod, 0x2,
2520 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2521 MLX4_CMD_NATIVE);
2522 if (err) {
2523 mlx4_err(dev, "Fail to get port %d uplink guid\n",
2524 port);
2525 ret = err;
2526 } else {
2527 MLX4_GET(guid_hi, outbox, MOD_STAT_CFG_GUID_H);
2528 MLX4_GET(guid_lo, outbox, MOD_STAT_CFG_GUID_L);
2529 dev->caps.phys_port_id[port] = (u64)guid_lo |
2530 (u64)guid_hi << 32;
2531 }
2532 }
2533 mlx4_free_cmd_mailbox(dev, mailbox);
2534 return ret;
2535 }
2536
2537 #define MLX4_WOL_SETUP_MODE (5 << 28)
2538 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
2539 {
2540 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2541
2542 return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
2543 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2544 MLX4_CMD_NATIVE);
2545 }
2546 EXPORT_SYMBOL_GPL(mlx4_wol_read);
2547
2548 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
2549 {
2550 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2551
2552 return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
2553 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2554 }
2555 EXPORT_SYMBOL_GPL(mlx4_wol_write);
2556
2557 enum {
2558 ADD_TO_MCG = 0x26,
2559 };
2560
2561
2562 void mlx4_opreq_action(struct work_struct *work)
2563 {
2564 struct mlx4_priv *priv = container_of(work, struct mlx4_priv,
2565 opreq_task);
2566 struct mlx4_dev *dev = &priv->dev;
2567 int num_tasks = atomic_read(&priv->opreq_count);
2568 struct mlx4_cmd_mailbox *mailbox;
2569 struct mlx4_mgm *mgm;
2570 u32 *outbox;
2571 u32 modifier;
2572 u16 token;
2573 u16 type;
2574 int err;
2575 u32 num_qps;
2576 struct mlx4_qp qp;
2577 int i;
2578 u8 rem_mcg;
2579 u8 prot;
2580
2581 #define GET_OP_REQ_MODIFIER_OFFSET 0x08
2582 #define GET_OP_REQ_TOKEN_OFFSET 0x14
2583 #define GET_OP_REQ_TYPE_OFFSET 0x1a
2584 #define GET_OP_REQ_DATA_OFFSET 0x20
2585
2586 mailbox = mlx4_alloc_cmd_mailbox(dev);
2587 if (IS_ERR(mailbox)) {
2588 mlx4_err(dev, "Failed to allocate mailbox for GET_OP_REQ\n");
2589 return;
2590 }
2591 outbox = mailbox->buf;
2592
2593 while (num_tasks) {
2594 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2595 MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2596 MLX4_CMD_NATIVE);
2597 if (err) {
2598 mlx4_err(dev, "Failed to retrieve required operation: %d\n",
2599 err);
2600 return;
2601 }
2602 MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
2603 MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
2604 MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
2605 type &= 0xfff;
2606
2607 switch (type) {
2608 case ADD_TO_MCG:
2609 if (dev->caps.steering_mode ==
2610 MLX4_STEERING_MODE_DEVICE_MANAGED) {
2611 mlx4_warn(dev, "ADD MCG operation is not supported in DEVICE_MANAGED steering mode\n");
2612 err = EPERM;
2613 break;
2614 }
2615 mgm = (struct mlx4_mgm *)((u8 *)(outbox) +
2616 GET_OP_REQ_DATA_OFFSET);
2617 num_qps = be32_to_cpu(mgm->members_count) &
2618 MGM_QPN_MASK;
2619 rem_mcg = ((u8 *)(&mgm->members_count))[0] & 1;
2620 prot = ((u8 *)(&mgm->members_count))[0] >> 6;
2621
2622 for (i = 0; i < num_qps; i++) {
2623 qp.qpn = be32_to_cpu(mgm->qp[i]);
2624 if (rem_mcg)
2625 err = mlx4_multicast_detach(dev, &qp,
2626 mgm->gid,
2627 prot, 0);
2628 else
2629 err = mlx4_multicast_attach(dev, &qp,
2630 mgm->gid,
2631 mgm->gid[5]
2632 , 0, prot,
2633 NULL);
2634 if (err)
2635 break;
2636 }
2637 break;
2638 default:
2639 mlx4_warn(dev, "Bad type for required operation\n");
2640 err = EINVAL;
2641 break;
2642 }
2643 err = mlx4_cmd(dev, 0, ((u32) err |
2644 (__force u32)cpu_to_be32(token) << 16),
2645 1, MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2646 MLX4_CMD_NATIVE);
2647 if (err) {
2648 mlx4_err(dev, "Failed to acknowledge required request: %d\n",
2649 err);
2650 goto out;
2651 }
2652 memset(outbox, 0, 0xffc);
2653 num_tasks = atomic_dec_return(&priv->opreq_count);
2654 }
2655
2656 out:
2657 mlx4_free_cmd_mailbox(dev, mailbox);
2658 }
2659
2660 static int mlx4_check_smp_firewall_active(struct mlx4_dev *dev,
2661 struct mlx4_cmd_mailbox *mailbox)
2662 {
2663 #define MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET 0x10
2664 #define MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET 0x20
2665 #define MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET 0x40
2666 #define MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET 0x70
2667
2668 u32 set_attr_mask, getresp_attr_mask;
2669 u32 trap_attr_mask, traprepress_attr_mask;
2670
2671 MLX4_GET(set_attr_mask, mailbox->buf,
2672 MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET);
2673 mlx4_dbg(dev, "SMP firewall set_attribute_mask = 0x%x\n",
2674 set_attr_mask);
2675
2676 MLX4_GET(getresp_attr_mask, mailbox->buf,
2677 MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET);
2678 mlx4_dbg(dev, "SMP firewall getresp_attribute_mask = 0x%x\n",
2679 getresp_attr_mask);
2680
2681 MLX4_GET(trap_attr_mask, mailbox->buf,
2682 MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET);
2683 mlx4_dbg(dev, "SMP firewall trap_attribute_mask = 0x%x\n",
2684 trap_attr_mask);
2685
2686 MLX4_GET(traprepress_attr_mask, mailbox->buf,
2687 MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET);
2688 mlx4_dbg(dev, "SMP firewall traprepress_attribute_mask = 0x%x\n",
2689 traprepress_attr_mask);
2690
2691 if (set_attr_mask && getresp_attr_mask && trap_attr_mask &&
2692 traprepress_attr_mask)
2693 return 1;
2694
2695 return 0;
2696 }
2697
2698 int mlx4_config_mad_demux(struct mlx4_dev *dev)
2699 {
2700 struct mlx4_cmd_mailbox *mailbox;
2701 int secure_host_active;
2702 int err;
2703
2704 /* Check if mad_demux is supported */
2705 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_MAD_DEMUX))
2706 return 0;
2707
2708 mailbox = mlx4_alloc_cmd_mailbox(dev);
2709 if (IS_ERR(mailbox)) {
2710 mlx4_warn(dev, "Failed to allocate mailbox for cmd MAD_DEMUX");
2711 return -ENOMEM;
2712 }
2713
2714 /* Query mad_demux to find out which MADs are handled by internal sma */
2715 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0x01 /* subn mgmt class */,
2716 MLX4_CMD_MAD_DEMUX_QUERY_RESTR, MLX4_CMD_MAD_DEMUX,
2717 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2718 if (err) {
2719 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: query restrictions failed (%d)\n",
2720 err);
2721 goto out;
2722 }
2723
2724 secure_host_active = mlx4_check_smp_firewall_active(dev, mailbox);
2725
2726 /* Config mad_demux to handle all MADs returned by the query above */
2727 err = mlx4_cmd(dev, mailbox->dma, 0x01 /* subn mgmt class */,
2728 MLX4_CMD_MAD_DEMUX_CONFIG, MLX4_CMD_MAD_DEMUX,
2729 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2730 if (err) {
2731 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: configure failed (%d)\n", err);
2732 goto out;
2733 }
2734
2735 if (secure_host_active)
2736 mlx4_warn(dev, "HCA operating in secure-host mode. SMP firewall activated.\n");
2737 out:
2738 mlx4_free_cmd_mailbox(dev, mailbox);
2739 return err;
2740 }
2741
2742 /* Access Reg commands */
2743 enum mlx4_access_reg_masks {
2744 MLX4_ACCESS_REG_STATUS_MASK = 0x7f,
2745 MLX4_ACCESS_REG_METHOD_MASK = 0x7f,
2746 MLX4_ACCESS_REG_LEN_MASK = 0x7ff
2747 };
2748
2749 struct mlx4_access_reg {
2750 __be16 constant1;
2751 u8 status;
2752 u8 resrvd1;
2753 __be16 reg_id;
2754 u8 method;
2755 u8 constant2;
2756 __be32 resrvd2[2];
2757 __be16 len_const;
2758 __be16 resrvd3;
2759 #define MLX4_ACCESS_REG_HEADER_SIZE (20)
2760 u8 reg_data[MLX4_MAILBOX_SIZE-MLX4_ACCESS_REG_HEADER_SIZE];
2761 } __attribute__((__packed__));
2762
2763 /**
2764 * mlx4_ACCESS_REG - Generic access reg command.
2765 * @dev: mlx4_dev.
2766 * @reg_id: register ID to access.
2767 * @method: Access method Read/Write.
2768 * @reg_len: register length to Read/Write in bytes.
2769 * @reg_data: reg_data pointer to Read/Write From/To.
2770 *
2771 * Access ConnectX registers FW command.
2772 * Returns 0 on success and copies outbox mlx4_access_reg data
2773 * field into reg_data or a negative error code.
2774 */
2775 static int mlx4_ACCESS_REG(struct mlx4_dev *dev, u16 reg_id,
2776 enum mlx4_access_reg_method method,
2777 u16 reg_len, void *reg_data)
2778 {
2779 struct mlx4_cmd_mailbox *inbox, *outbox;
2780 struct mlx4_access_reg *inbuf, *outbuf;
2781 int err;
2782
2783 inbox = mlx4_alloc_cmd_mailbox(dev);
2784 if (IS_ERR(inbox))
2785 return PTR_ERR(inbox);
2786
2787 outbox = mlx4_alloc_cmd_mailbox(dev);
2788 if (IS_ERR(outbox)) {
2789 mlx4_free_cmd_mailbox(dev, inbox);
2790 return PTR_ERR(outbox);
2791 }
2792
2793 inbuf = inbox->buf;
2794 outbuf = outbox->buf;
2795
2796 inbuf->constant1 = cpu_to_be16(0x1<<11 | 0x4);
2797 inbuf->constant2 = 0x1;
2798 inbuf->reg_id = cpu_to_be16(reg_id);
2799 inbuf->method = method & MLX4_ACCESS_REG_METHOD_MASK;
2800
2801 reg_len = min(reg_len, (u16)(sizeof(inbuf->reg_data)));
2802 inbuf->len_const =
2803 cpu_to_be16(((reg_len/4 + 1) & MLX4_ACCESS_REG_LEN_MASK) |
2804 ((0x3) << 12));
2805
2806 memcpy(inbuf->reg_data, reg_data, reg_len);
2807 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 0, 0,
2808 MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2809 MLX4_CMD_WRAPPED);
2810 if (err)
2811 goto out;
2812
2813 if (outbuf->status & MLX4_ACCESS_REG_STATUS_MASK) {
2814 err = outbuf->status & MLX4_ACCESS_REG_STATUS_MASK;
2815 mlx4_err(dev,
2816 "MLX4_CMD_ACCESS_REG(%x) returned REG status (%x)\n",
2817 reg_id, err);
2818 goto out;
2819 }
2820
2821 memcpy(reg_data, outbuf->reg_data, reg_len);
2822 out:
2823 mlx4_free_cmd_mailbox(dev, inbox);
2824 mlx4_free_cmd_mailbox(dev, outbox);
2825 return err;
2826 }
2827
2828 /* ConnectX registers IDs */
2829 enum mlx4_reg_id {
2830 MLX4_REG_ID_PTYS = 0x5004,
2831 };
2832
2833 /**
2834 * mlx4_ACCESS_PTYS_REG - Access PTYs (Port Type and Speed)
2835 * register
2836 * @dev: mlx4_dev.
2837 * @method: Access method Read/Write.
2838 * @ptys_reg: PTYS register data pointer.
2839 *
2840 * Access ConnectX PTYS register, to Read/Write Port Type/Speed
2841 * configuration
2842 * Returns 0 on success or a negative error code.
2843 */
2844 int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
2845 enum mlx4_access_reg_method method,
2846 struct mlx4_ptys_reg *ptys_reg)
2847 {
2848 return mlx4_ACCESS_REG(dev, MLX4_REG_ID_PTYS,
2849 method, sizeof(*ptys_reg), ptys_reg);
2850 }
2851 EXPORT_SYMBOL_GPL(mlx4_ACCESS_PTYS_REG);
2852
2853 int mlx4_ACCESS_REG_wrapper(struct mlx4_dev *dev, int slave,
2854 struct mlx4_vhcr *vhcr,
2855 struct mlx4_cmd_mailbox *inbox,
2856 struct mlx4_cmd_mailbox *outbox,
2857 struct mlx4_cmd_info *cmd)
2858 {
2859 struct mlx4_access_reg *inbuf = inbox->buf;
2860 u8 method = inbuf->method & MLX4_ACCESS_REG_METHOD_MASK;
2861 u16 reg_id = be16_to_cpu(inbuf->reg_id);
2862
2863 if (slave != mlx4_master_func_num(dev) &&
2864 method == MLX4_ACCESS_REG_WRITE)
2865 return -EPERM;
2866
2867 if (reg_id == MLX4_REG_ID_PTYS) {
2868 struct mlx4_ptys_reg *ptys_reg =
2869 (struct mlx4_ptys_reg *)inbuf->reg_data;
2870
2871 ptys_reg->local_port =
2872 mlx4_slave_convert_port(dev, slave,
2873 ptys_reg->local_port);
2874 }
2875
2876 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier,
2877 0, MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2878 MLX4_CMD_NATIVE);
2879 }
2880
2881 static int mlx4_SET_PORT_phv_bit(struct mlx4_dev *dev, u8 port, u8 phv_bit)
2882 {
2883 #define SET_PORT_GEN_PHV_VALID 0x10
2884 #define SET_PORT_GEN_PHV_EN 0x80
2885
2886 struct mlx4_cmd_mailbox *mailbox;
2887 struct mlx4_set_port_general_context *context;
2888 u32 in_mod;
2889 int err;
2890
2891 mailbox = mlx4_alloc_cmd_mailbox(dev);
2892 if (IS_ERR(mailbox))
2893 return PTR_ERR(mailbox);
2894 context = mailbox->buf;
2895
2896 context->v_ignore_fcs |= SET_PORT_GEN_PHV_VALID;
2897 if (phv_bit)
2898 context->phv_en |= SET_PORT_GEN_PHV_EN;
2899
2900 in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
2901 err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE,
2902 MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
2903 MLX4_CMD_NATIVE);
2904
2905 mlx4_free_cmd_mailbox(dev, mailbox);
2906 return err;
2907 }
2908
2909 int get_phv_bit(struct mlx4_dev *dev, u8 port, int *phv)
2910 {
2911 int err;
2912 struct mlx4_func_cap func_cap;
2913
2914 memset(&func_cap, 0, sizeof(func_cap));
2915 err = mlx4_QUERY_FUNC_CAP(dev, port, &func_cap);
2916 if (!err)
2917 *phv = func_cap.flags & QUERY_FUNC_CAP_PHV_BIT;
2918 return err;
2919 }
2920 EXPORT_SYMBOL(get_phv_bit);
2921
2922 int set_phv_bit(struct mlx4_dev *dev, u8 port, int new_val)
2923 {
2924 int ret;
2925
2926 if (mlx4_is_slave(dev))
2927 return -EPERM;
2928
2929 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
2930 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
2931 ret = mlx4_SET_PORT_phv_bit(dev, port, new_val);
2932 if (!ret)
2933 dev->caps.phv_bit[port] = new_val;
2934 return ret;
2935 }
2936
2937 return -EOPNOTSUPP;
2938 }
2939 EXPORT_SYMBOL(set_phv_bit);
2940
2941 void mlx4_replace_zero_macs(struct mlx4_dev *dev)
2942 {
2943 int i;
2944 u8 mac_addr[ETH_ALEN];
2945
2946 dev->port_random_macs = 0;
2947 for (i = 1; i <= dev->caps.num_ports; ++i)
2948 if (!dev->caps.def_mac[i] &&
2949 dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) {
2950 eth_random_addr(mac_addr);
2951 dev->port_random_macs |= 1 << i;
2952 dev->caps.def_mac[i] = mlx4_mac_to_u64(mac_addr);
2953 }
2954 }
2955 EXPORT_SYMBOL_GPL(mlx4_replace_zero_macs);
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