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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
[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 };
159 int i;
160
161 for (i = 0; i < ARRAY_SIZE(fname); ++i)
162 if (fname[i] && (flags & (1LL << i)))
163 mlx4_dbg(dev, " %s\n", fname[i]);
164 }
165
166 int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
167 {
168 struct mlx4_cmd_mailbox *mailbox;
169 u32 *inbox;
170 int err = 0;
171
172 #define MOD_STAT_CFG_IN_SIZE 0x100
173
174 #define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
175 #define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
176
177 mailbox = mlx4_alloc_cmd_mailbox(dev);
178 if (IS_ERR(mailbox))
179 return PTR_ERR(mailbox);
180 inbox = mailbox->buf;
181
182 MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
183 MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
184
185 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
186 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
187
188 mlx4_free_cmd_mailbox(dev, mailbox);
189 return err;
190 }
191
192 int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
193 {
194 struct mlx4_cmd_mailbox *mailbox;
195 u32 *outbox;
196 u8 in_modifier;
197 u8 field;
198 u16 field16;
199 int err;
200
201 #define QUERY_FUNC_BUS_OFFSET 0x00
202 #define QUERY_FUNC_DEVICE_OFFSET 0x01
203 #define QUERY_FUNC_FUNCTION_OFFSET 0x01
204 #define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
205 #define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
206 #define QUERY_FUNC_MAX_EQ_OFFSET 0x06
207 #define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
208
209 mailbox = mlx4_alloc_cmd_mailbox(dev);
210 if (IS_ERR(mailbox))
211 return PTR_ERR(mailbox);
212 outbox = mailbox->buf;
213
214 in_modifier = slave;
215
216 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
217 MLX4_CMD_QUERY_FUNC,
218 MLX4_CMD_TIME_CLASS_A,
219 MLX4_CMD_NATIVE);
220 if (err)
221 goto out;
222
223 MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
224 func->bus = field & 0xf;
225 MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
226 func->device = field & 0xf1;
227 MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
228 func->function = field & 0x7;
229 MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
230 func->physical_function = field & 0xf;
231 MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
232 func->rsvd_eqs = field16 & 0xffff;
233 MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
234 func->max_eq = field16 & 0xffff;
235 MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
236 func->rsvd_uars = field & 0x0f;
237
238 mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
239 func->bus, func->device, func->function, func->physical_function,
240 func->max_eq, func->rsvd_eqs, func->rsvd_uars);
241
242 out:
243 mlx4_free_cmd_mailbox(dev, mailbox);
244 return err;
245 }
246
247 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
248 struct mlx4_vhcr *vhcr,
249 struct mlx4_cmd_mailbox *inbox,
250 struct mlx4_cmd_mailbox *outbox,
251 struct mlx4_cmd_info *cmd)
252 {
253 struct mlx4_priv *priv = mlx4_priv(dev);
254 u8 field, port;
255 u32 size, proxy_qp, qkey;
256 int err = 0;
257 struct mlx4_func func;
258
259 #define QUERY_FUNC_CAP_FLAGS_OFFSET 0x0
260 #define QUERY_FUNC_CAP_NUM_PORTS_OFFSET 0x1
261 #define QUERY_FUNC_CAP_PF_BHVR_OFFSET 0x4
262 #define QUERY_FUNC_CAP_FMR_OFFSET 0x8
263 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP 0x10
264 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP 0x14
265 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP 0x18
266 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP 0x20
267 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP 0x24
268 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP 0x28
269 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET 0x2c
270 #define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET 0x30
271 #define QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET 0x48
272
273 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET 0x50
274 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET 0x54
275 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET 0x58
276 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET 0x60
277 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET 0x64
278 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET 0x68
279
280 #define QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET 0x6c
281
282 #define QUERY_FUNC_CAP_FMR_FLAG 0x80
283 #define QUERY_FUNC_CAP_FLAG_RDMA 0x40
284 #define QUERY_FUNC_CAP_FLAG_ETH 0x80
285 #define QUERY_FUNC_CAP_FLAG_QUOTAS 0x10
286 #define QUERY_FUNC_CAP_FLAG_RESD_LKEY 0x08
287 #define QUERY_FUNC_CAP_FLAG_VALID_MAILBOX 0x04
288
289 #define QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG (1UL << 31)
290 #define QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG (1UL << 30)
291
292 /* when opcode modifier = 1 */
293 #define QUERY_FUNC_CAP_PHYS_PORT_OFFSET 0x3
294 #define QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET 0x4
295 #define QUERY_FUNC_CAP_FLAGS0_OFFSET 0x8
296 #define QUERY_FUNC_CAP_FLAGS1_OFFSET 0xc
297
298 #define QUERY_FUNC_CAP_QP0_TUNNEL 0x10
299 #define QUERY_FUNC_CAP_QP0_PROXY 0x14
300 #define QUERY_FUNC_CAP_QP1_TUNNEL 0x18
301 #define QUERY_FUNC_CAP_QP1_PROXY 0x1c
302 #define QUERY_FUNC_CAP_PHYS_PORT_ID 0x28
303
304 #define QUERY_FUNC_CAP_FLAGS1_FORCE_MAC 0x40
305 #define QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN 0x80
306 #define QUERY_FUNC_CAP_FLAGS1_NIC_INFO 0x10
307 #define QUERY_FUNC_CAP_VF_ENABLE_QP0 0x08
308
309 #define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
310 #define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS (1 << 31)
311 #define QUERY_FUNC_CAP_PHV_BIT 0x40
312
313 if (vhcr->op_modifier == 1) {
314 struct mlx4_active_ports actv_ports =
315 mlx4_get_active_ports(dev, slave);
316 int converted_port = mlx4_slave_convert_port(
317 dev, slave, vhcr->in_modifier);
318
319 if (converted_port < 0)
320 return -EINVAL;
321
322 vhcr->in_modifier = converted_port;
323 /* phys-port = logical-port */
324 field = vhcr->in_modifier -
325 find_first_bit(actv_ports.ports, dev->caps.num_ports);
326 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
327
328 port = vhcr->in_modifier;
329 proxy_qp = dev->phys_caps.base_proxy_sqpn + 8 * slave + port - 1;
330
331 /* Set nic_info bit to mark new fields support */
332 field = QUERY_FUNC_CAP_FLAGS1_NIC_INFO;
333
334 if (mlx4_vf_smi_enabled(dev, slave, port) &&
335 !mlx4_get_parav_qkey(dev, proxy_qp, &qkey)) {
336 field |= QUERY_FUNC_CAP_VF_ENABLE_QP0;
337 MLX4_PUT(outbox->buf, qkey,
338 QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
339 }
340 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
341
342 /* size is now the QP number */
343 size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + port - 1;
344 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
345
346 size += 2;
347 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
348
349 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP0_PROXY);
350 proxy_qp += 2;
351 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP1_PROXY);
352
353 MLX4_PUT(outbox->buf, dev->caps.phys_port_id[vhcr->in_modifier],
354 QUERY_FUNC_CAP_PHYS_PORT_ID);
355
356 if (dev->caps.phv_bit[port]) {
357 field = QUERY_FUNC_CAP_PHV_BIT;
358 MLX4_PUT(outbox->buf, field,
359 QUERY_FUNC_CAP_FLAGS0_OFFSET);
360 }
361
362 } else if (vhcr->op_modifier == 0) {
363 struct mlx4_active_ports actv_ports =
364 mlx4_get_active_ports(dev, slave);
365 /* enable rdma and ethernet interfaces, new quota locations,
366 * and reserved lkey
367 */
368 field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
369 QUERY_FUNC_CAP_FLAG_QUOTAS | QUERY_FUNC_CAP_FLAG_VALID_MAILBOX |
370 QUERY_FUNC_CAP_FLAG_RESD_LKEY);
371 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
372
373 field = min(
374 bitmap_weight(actv_ports.ports, dev->caps.num_ports),
375 dev->caps.num_ports);
376 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
377
378 size = dev->caps.function_caps; /* set PF behaviours */
379 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
380
381 field = 0; /* protected FMR support not available as yet */
382 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
383
384 size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
385 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
386 size = dev->caps.num_qps;
387 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
388
389 size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
390 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
391 size = dev->caps.num_srqs;
392 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
393
394 size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
395 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
396 size = dev->caps.num_cqs;
397 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
398
399 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) ||
400 mlx4_QUERY_FUNC(dev, &func, slave)) {
401 size = vhcr->in_modifier &
402 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
403 dev->caps.num_eqs :
404 rounddown_pow_of_two(dev->caps.num_eqs);
405 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
406 size = dev->caps.reserved_eqs;
407 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
408 } else {
409 size = vhcr->in_modifier &
410 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
411 func.max_eq :
412 rounddown_pow_of_two(func.max_eq);
413 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
414 size = func.rsvd_eqs;
415 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
416 }
417
418 size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
419 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
420 size = dev->caps.num_mpts;
421 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
422
423 size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
424 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
425 size = dev->caps.num_mtts;
426 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
427
428 size = dev->caps.num_mgms + dev->caps.num_amgms;
429 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
430 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
431
432 size = QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG |
433 QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG;
434 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
435
436 size = dev->caps.reserved_lkey + ((slave << 8) & 0xFF00);
437 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
438 } else
439 err = -EINVAL;
440
441 return err;
442 }
443
444 int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,
445 struct mlx4_func_cap *func_cap)
446 {
447 struct mlx4_cmd_mailbox *mailbox;
448 u32 *outbox;
449 u8 field, op_modifier;
450 u32 size, qkey;
451 int err = 0, quotas = 0;
452 u32 in_modifier;
453
454 op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
455 in_modifier = op_modifier ? gen_or_port :
456 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
457
458 mailbox = mlx4_alloc_cmd_mailbox(dev);
459 if (IS_ERR(mailbox))
460 return PTR_ERR(mailbox);
461
462 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, op_modifier,
463 MLX4_CMD_QUERY_FUNC_CAP,
464 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
465 if (err)
466 goto out;
467
468 outbox = mailbox->buf;
469
470 if (!op_modifier) {
471 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
472 if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
473 mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
474 err = -EPROTONOSUPPORT;
475 goto out;
476 }
477 func_cap->flags = field;
478 quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
479
480 MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
481 func_cap->num_ports = field;
482
483 MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
484 func_cap->pf_context_behaviour = size;
485
486 if (quotas) {
487 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
488 func_cap->qp_quota = size & 0xFFFFFF;
489
490 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
491 func_cap->srq_quota = size & 0xFFFFFF;
492
493 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
494 func_cap->cq_quota = size & 0xFFFFFF;
495
496 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
497 func_cap->mpt_quota = size & 0xFFFFFF;
498
499 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
500 func_cap->mtt_quota = size & 0xFFFFFF;
501
502 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
503 func_cap->mcg_quota = size & 0xFFFFFF;
504
505 } else {
506 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
507 func_cap->qp_quota = size & 0xFFFFFF;
508
509 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
510 func_cap->srq_quota = size & 0xFFFFFF;
511
512 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
513 func_cap->cq_quota = size & 0xFFFFFF;
514
515 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
516 func_cap->mpt_quota = size & 0xFFFFFF;
517
518 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
519 func_cap->mtt_quota = size & 0xFFFFFF;
520
521 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
522 func_cap->mcg_quota = size & 0xFFFFFF;
523 }
524 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
525 func_cap->max_eq = size & 0xFFFFFF;
526
527 MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
528 func_cap->reserved_eq = size & 0xFFFFFF;
529
530 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_RESD_LKEY) {
531 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
532 func_cap->reserved_lkey = size;
533 } else {
534 func_cap->reserved_lkey = 0;
535 }
536
537 func_cap->extra_flags = 0;
538
539 /* Mailbox data from 0x6c and onward should only be treated if
540 * QUERY_FUNC_CAP_FLAG_VALID_MAILBOX is set in func_cap->flags
541 */
542 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_VALID_MAILBOX) {
543 MLX4_GET(size, outbox, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
544 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG)
545 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_BF_RES_QP;
546 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG)
547 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_A0_RES_QP;
548 }
549
550 goto out;
551 }
552
553 /* logical port query */
554 if (gen_or_port > dev->caps.num_ports) {
555 err = -EINVAL;
556 goto out;
557 }
558
559 MLX4_GET(func_cap->flags1, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
560 if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
561 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN) {
562 mlx4_err(dev, "VLAN is enforced on this port\n");
563 err = -EPROTONOSUPPORT;
564 goto out;
565 }
566
567 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
568 mlx4_err(dev, "Force mac is enabled on this port\n");
569 err = -EPROTONOSUPPORT;
570 goto out;
571 }
572 } else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
573 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
574 if (field & QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID) {
575 mlx4_err(dev, "phy_wqe_gid is enforced on this ib port\n");
576 err = -EPROTONOSUPPORT;
577 goto out;
578 }
579 }
580
581 MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
582 func_cap->physical_port = field;
583 if (func_cap->physical_port != gen_or_port) {
584 err = -ENOSYS;
585 goto out;
586 }
587
588 if (func_cap->flags1 & QUERY_FUNC_CAP_VF_ENABLE_QP0) {
589 MLX4_GET(qkey, outbox, QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
590 func_cap->qp0_qkey = qkey;
591 } else {
592 func_cap->qp0_qkey = 0;
593 }
594
595 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
596 func_cap->qp0_tunnel_qpn = size & 0xFFFFFF;
597
598 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
599 func_cap->qp0_proxy_qpn = size & 0xFFFFFF;
600
601 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
602 func_cap->qp1_tunnel_qpn = size & 0xFFFFFF;
603
604 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
605 func_cap->qp1_proxy_qpn = size & 0xFFFFFF;
606
607 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_NIC_INFO)
608 MLX4_GET(func_cap->phys_port_id, outbox,
609 QUERY_FUNC_CAP_PHYS_PORT_ID);
610
611 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
612 func_cap->flags |= (field & QUERY_FUNC_CAP_PHV_BIT);
613
614 /* All other resources are allocated by the master, but we still report
615 * 'num' and 'reserved' capabilities as follows:
616 * - num remains the maximum resource index
617 * - 'num - reserved' is the total available objects of a resource, but
618 * resource indices may be less than 'reserved'
619 * TODO: set per-resource quotas */
620
621 out:
622 mlx4_free_cmd_mailbox(dev, mailbox);
623
624 return err;
625 }
626
627 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
628 {
629 struct mlx4_cmd_mailbox *mailbox;
630 u32 *outbox;
631 u8 field;
632 u32 field32, flags, ext_flags;
633 u16 size;
634 u16 stat_rate;
635 int err;
636 int i;
637
638 #define QUERY_DEV_CAP_OUT_SIZE 0x100
639 #define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
640 #define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
641 #define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
642 #define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
643 #define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
644 #define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
645 #define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
646 #define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
647 #define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
648 #define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
649 #define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
650 #define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
651 #define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
652 #define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
653 #define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
654 #define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
655 #define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
656 #define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
657 #define QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET 0x26
658 #define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
659 #define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
660 #define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
661 #define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
662 #define QUERY_DEV_CAP_RSS_OFFSET 0x2e
663 #define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
664 #define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
665 #define QUERY_DEV_CAP_PORT_BEACON_OFFSET 0x34
666 #define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
667 #define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
668 #define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
669 #define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
670 #define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
671 #define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
672 #define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET 0x3e
673 #define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
674 #define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
675 #define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
676 #define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
677 #define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
678 #define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
679 #define QUERY_DEV_CAP_BF_OFFSET 0x4c
680 #define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
681 #define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
682 #define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
683 #define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
684 #define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
685 #define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
686 #define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
687 #define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
688 #define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
689 #define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
690 #define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
691 #define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
692 #define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
693 #define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
694 #define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
695 #define QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET 0x70
696 #define QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET 0x70
697 #define QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET 0x74
698 #define QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET 0x76
699 #define QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET 0x77
700 #define QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE 0x7a
701 #define QUERY_DEV_CAP_ECN_QCN_VER_OFFSET 0x7b
702 #define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
703 #define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
704 #define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
705 #define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
706 #define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
707 #define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
708 #define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
709 #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
710 #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
711 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
712 #define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
713 #define QUERY_DEV_CAP_CONFIG_DEV_OFFSET 0x94
714 #define QUERY_DEV_CAP_PHV_EN_OFFSET 0x96
715 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
716 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
717 #define QUERY_DEV_CAP_ETH_BACKPL_OFFSET 0x9c
718 #define QUERY_DEV_CAP_FW_REASSIGN_MAC 0x9d
719 #define QUERY_DEV_CAP_VXLAN 0x9e
720 #define QUERY_DEV_CAP_MAD_DEMUX_OFFSET 0xb0
721 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET 0xa8
722 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET 0xac
723 #define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET 0xcc
724 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET 0xd0
725 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET 0xd2
726
727
728 dev_cap->flags2 = 0;
729 mailbox = mlx4_alloc_cmd_mailbox(dev);
730 if (IS_ERR(mailbox))
731 return PTR_ERR(mailbox);
732 outbox = mailbox->buf;
733
734 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
735 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
736 if (err)
737 goto out;
738
739 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
740 dev_cap->reserved_qps = 1 << (field & 0xf);
741 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
742 dev_cap->max_qps = 1 << (field & 0x1f);
743 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
744 dev_cap->reserved_srqs = 1 << (field >> 4);
745 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
746 dev_cap->max_srqs = 1 << (field & 0x1f);
747 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
748 dev_cap->max_cq_sz = 1 << field;
749 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
750 dev_cap->reserved_cqs = 1 << (field & 0xf);
751 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
752 dev_cap->max_cqs = 1 << (field & 0x1f);
753 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
754 dev_cap->max_mpts = 1 << (field & 0x3f);
755 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
756 dev_cap->reserved_eqs = 1 << (field & 0xf);
757 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
758 dev_cap->max_eqs = 1 << (field & 0xf);
759 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
760 dev_cap->reserved_mtts = 1 << (field >> 4);
761 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
762 dev_cap->max_mrw_sz = 1 << field;
763 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
764 dev_cap->reserved_mrws = 1 << (field & 0xf);
765 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
766 dev_cap->max_mtt_seg = 1 << (field & 0x3f);
767 MLX4_GET(size, outbox, QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET);
768 dev_cap->num_sys_eqs = size & 0xfff;
769 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
770 dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
771 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
772 dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
773 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
774 field &= 0x1f;
775 if (!field)
776 dev_cap->max_gso_sz = 0;
777 else
778 dev_cap->max_gso_sz = 1 << field;
779
780 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSS_OFFSET);
781 if (field & 0x20)
782 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_XOR;
783 if (field & 0x10)
784 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_TOP;
785 field &= 0xf;
786 if (field) {
787 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS;
788 dev_cap->max_rss_tbl_sz = 1 << field;
789 } else
790 dev_cap->max_rss_tbl_sz = 0;
791 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
792 dev_cap->max_rdma_global = 1 << (field & 0x3f);
793 MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
794 dev_cap->local_ca_ack_delay = field & 0x1f;
795 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
796 dev_cap->num_ports = field & 0xf;
797 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
798 dev_cap->max_msg_sz = 1 << (field & 0x1f);
799 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET);
800 if (field & 0x10)
801 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN;
802 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
803 if (field & 0x80)
804 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FS_EN;
805 dev_cap->fs_log_max_ucast_qp_range_size = field & 0x1f;
806 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
807 if (field & 0x80)
808 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_BEACON;
809 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
810 if (field & 0x80)
811 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_IPOIB;
812 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET);
813 dev_cap->fs_max_num_qp_per_entry = field;
814 MLX4_GET(field, outbox, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
815 if (field & 0x1)
816 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QCN;
817 MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
818 dev_cap->stat_rate_support = stat_rate;
819 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
820 if (field & 0x80)
821 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;
822 MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
823 MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
824 dev_cap->flags = flags | (u64)ext_flags << 32;
825 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
826 dev_cap->reserved_uars = field >> 4;
827 MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
828 dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
829 MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
830 dev_cap->min_page_sz = 1 << field;
831
832 MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
833 if (field & 0x80) {
834 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
835 dev_cap->bf_reg_size = 1 << (field & 0x1f);
836 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
837 if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
838 field = 3;
839 dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
840 } else {
841 dev_cap->bf_reg_size = 0;
842 }
843
844 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
845 dev_cap->max_sq_sg = field;
846 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
847 dev_cap->max_sq_desc_sz = size;
848
849 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
850 dev_cap->max_qp_per_mcg = 1 << field;
851 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
852 dev_cap->reserved_mgms = field & 0xf;
853 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
854 dev_cap->max_mcgs = 1 << field;
855 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
856 dev_cap->reserved_pds = field >> 4;
857 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
858 dev_cap->max_pds = 1 << (field & 0x3f);
859 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
860 dev_cap->reserved_xrcds = field >> 4;
861 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
862 dev_cap->max_xrcds = 1 << (field & 0x1f);
863
864 MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
865 dev_cap->rdmarc_entry_sz = size;
866 MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
867 dev_cap->qpc_entry_sz = size;
868 MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
869 dev_cap->aux_entry_sz = size;
870 MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
871 dev_cap->altc_entry_sz = size;
872 MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
873 dev_cap->eqc_entry_sz = size;
874 MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
875 dev_cap->cqc_entry_sz = size;
876 MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
877 dev_cap->srq_entry_sz = size;
878 MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
879 dev_cap->cmpt_entry_sz = size;
880 MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
881 dev_cap->mtt_entry_sz = size;
882 MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
883 dev_cap->dmpt_entry_sz = size;
884
885 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
886 dev_cap->max_srq_sz = 1 << field;
887 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
888 dev_cap->max_qp_sz = 1 << field;
889 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
890 dev_cap->resize_srq = field & 1;
891 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
892 dev_cap->max_rq_sg = field;
893 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
894 dev_cap->max_rq_desc_sz = size;
895 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
896 if (field & (1 << 4))
897 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QOS_VPP;
898 if (field & (1 << 5))
899 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL;
900 if (field & (1 << 6))
901 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
902 if (field & (1 << 7))
903 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
904 MLX4_GET(dev_cap->bmme_flags, outbox,
905 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
906 if (dev_cap->bmme_flags & MLX4_FLAG_PORT_REMAP)
907 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_REMAP;
908 MLX4_GET(field, outbox, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
909 if (field & 0x20)
910 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CONFIG_DEV;
911 if (field & (1 << 2))
912 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
913 MLX4_GET(field, outbox, QUERY_DEV_CAP_PHV_EN_OFFSET);
914 if (field & 0x80)
915 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PHV_EN;
916 if (field & 0x40)
917 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN;
918
919 MLX4_GET(dev_cap->reserved_lkey, outbox,
920 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
921 MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETH_BACKPL_OFFSET);
922 if (field32 & (1 << 0))
923 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
924 if (field32 & (1 << 7))
925 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT;
926 MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
927 if (field & 1<<6)
928 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;
929 MLX4_GET(field, outbox, QUERY_DEV_CAP_VXLAN);
930 if (field & 1<<3)
931 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS;
932 if (field & (1 << 5))
933 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
934 MLX4_GET(dev_cap->max_icm_sz, outbox,
935 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
936 if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
937 MLX4_GET(dev_cap->max_counters, outbox,
938 QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
939
940 MLX4_GET(field32, outbox,
941 QUERY_DEV_CAP_MAD_DEMUX_OFFSET);
942 if (field32 & (1 << 0))
943 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_MAD_DEMUX;
944
945 MLX4_GET(dev_cap->dmfs_high_rate_qpn_base, outbox,
946 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET);
947 dev_cap->dmfs_high_rate_qpn_base &= MGM_QPN_MASK;
948 MLX4_GET(dev_cap->dmfs_high_rate_qpn_range, outbox,
949 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET);
950 dev_cap->dmfs_high_rate_qpn_range &= MGM_QPN_MASK;
951
952 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
953 dev_cap->rl_caps.num_rates = size;
954 if (dev_cap->rl_caps.num_rates) {
955 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT;
956 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET);
957 dev_cap->rl_caps.max_val = size & 0xfff;
958 dev_cap->rl_caps.max_unit = size >> 14;
959 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET);
960 dev_cap->rl_caps.min_val = size & 0xfff;
961 dev_cap->rl_caps.min_unit = size >> 14;
962 }
963
964 MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
965 if (field32 & (1 << 16))
966 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
967 if (field32 & (1 << 26))
968 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
969 if (field32 & (1 << 20))
970 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FSM;
971 if (field32 & (1 << 21))
972 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_80_VFS;
973
974 for (i = 1; i <= dev_cap->num_ports; i++) {
975 err = mlx4_QUERY_PORT(dev, i, dev_cap->port_cap + i);
976 if (err)
977 goto out;
978 }
979
980 /*
981 * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
982 * we can't use any EQs whose doorbell falls on that page,
983 * even if the EQ itself isn't reserved.
984 */
985 if (dev_cap->num_sys_eqs == 0)
986 dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
987 dev_cap->reserved_eqs);
988 else
989 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
990
991 out:
992 mlx4_free_cmd_mailbox(dev, mailbox);
993 return err;
994 }
995
996 void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
997 {
998 if (dev_cap->bf_reg_size > 0)
999 mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
1000 dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
1001 else
1002 mlx4_dbg(dev, "BlueFlame not available\n");
1003
1004 mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
1005 dev_cap->bmme_flags, dev_cap->reserved_lkey);
1006 mlx4_dbg(dev, "Max ICM size %lld MB\n",
1007 (unsigned long long) dev_cap->max_icm_sz >> 20);
1008 mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
1009 dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
1010 mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
1011 dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
1012 mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
1013 dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
1014 mlx4_dbg(dev, "Num sys EQs: %d, max EQs: %d, reserved EQs: %d, entry size: %d\n",
1015 dev_cap->num_sys_eqs, dev_cap->max_eqs, dev_cap->reserved_eqs,
1016 dev_cap->eqc_entry_sz);
1017 mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
1018 dev_cap->reserved_mrws, dev_cap->reserved_mtts);
1019 mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
1020 dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
1021 mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
1022 dev_cap->max_pds, dev_cap->reserved_mgms);
1023 mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
1024 dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
1025 mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
1026 dev_cap->local_ca_ack_delay, 128 << dev_cap->port_cap[1].ib_mtu,
1027 dev_cap->port_cap[1].max_port_width);
1028 mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
1029 dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
1030 mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
1031 dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
1032 mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
1033 mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
1034 mlx4_dbg(dev, "Max RSS Table size: %d\n", dev_cap->max_rss_tbl_sz);
1035 mlx4_dbg(dev, "DMFS high rate steer QPn base: %d\n",
1036 dev_cap->dmfs_high_rate_qpn_base);
1037 mlx4_dbg(dev, "DMFS high rate steer QPn range: %d\n",
1038 dev_cap->dmfs_high_rate_qpn_range);
1039
1040 if (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT) {
1041 struct mlx4_rate_limit_caps *rl_caps = &dev_cap->rl_caps;
1042
1043 mlx4_dbg(dev, "QP Rate-Limit: #rates %d, unit/val max %d/%d, min %d/%d\n",
1044 rl_caps->num_rates, rl_caps->max_unit, rl_caps->max_val,
1045 rl_caps->min_unit, rl_caps->min_val);
1046 }
1047
1048 dump_dev_cap_flags(dev, dev_cap->flags);
1049 dump_dev_cap_flags2(dev, dev_cap->flags2);
1050 }
1051
1052 int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap)
1053 {
1054 struct mlx4_cmd_mailbox *mailbox;
1055 u32 *outbox;
1056 u8 field;
1057 u32 field32;
1058 int err;
1059
1060 mailbox = mlx4_alloc_cmd_mailbox(dev);
1061 if (IS_ERR(mailbox))
1062 return PTR_ERR(mailbox);
1063 outbox = mailbox->buf;
1064
1065 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
1066 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1067 MLX4_CMD_TIME_CLASS_A,
1068 MLX4_CMD_NATIVE);
1069
1070 if (err)
1071 goto out;
1072
1073 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
1074 port_cap->max_vl = field >> 4;
1075 MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
1076 port_cap->ib_mtu = field >> 4;
1077 port_cap->max_port_width = field & 0xf;
1078 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
1079 port_cap->max_gids = 1 << (field & 0xf);
1080 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
1081 port_cap->max_pkeys = 1 << (field & 0xf);
1082 } else {
1083 #define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
1084 #define QUERY_PORT_MTU_OFFSET 0x01
1085 #define QUERY_PORT_ETH_MTU_OFFSET 0x02
1086 #define QUERY_PORT_WIDTH_OFFSET 0x06
1087 #define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
1088 #define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
1089 #define QUERY_PORT_MAX_VL_OFFSET 0x0b
1090 #define QUERY_PORT_MAC_OFFSET 0x10
1091 #define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
1092 #define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
1093 #define QUERY_PORT_TRANS_CODE_OFFSET 0x20
1094
1095 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0, MLX4_CMD_QUERY_PORT,
1096 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1097 if (err)
1098 goto out;
1099
1100 MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1101 port_cap->supported_port_types = field & 3;
1102 port_cap->suggested_type = (field >> 3) & 1;
1103 port_cap->default_sense = (field >> 4) & 1;
1104 port_cap->dmfs_optimized_state = (field >> 5) & 1;
1105 MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
1106 port_cap->ib_mtu = field & 0xf;
1107 MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
1108 port_cap->max_port_width = field & 0xf;
1109 MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
1110 port_cap->max_gids = 1 << (field >> 4);
1111 port_cap->max_pkeys = 1 << (field & 0xf);
1112 MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
1113 port_cap->max_vl = field & 0xf;
1114 MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
1115 port_cap->log_max_macs = field & 0xf;
1116 port_cap->log_max_vlans = field >> 4;
1117 MLX4_GET(port_cap->eth_mtu, outbox, QUERY_PORT_ETH_MTU_OFFSET);
1118 MLX4_GET(port_cap->def_mac, outbox, QUERY_PORT_MAC_OFFSET);
1119 MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
1120 port_cap->trans_type = field32 >> 24;
1121 port_cap->vendor_oui = field32 & 0xffffff;
1122 MLX4_GET(port_cap->wavelength, outbox, QUERY_PORT_WAVELENGTH_OFFSET);
1123 MLX4_GET(port_cap->trans_code, outbox, QUERY_PORT_TRANS_CODE_OFFSET);
1124 }
1125
1126 out:
1127 mlx4_free_cmd_mailbox(dev, mailbox);
1128 return err;
1129 }
1130
1131 #define DEV_CAP_EXT_2_FLAG_PFC_COUNTERS (1 << 28)
1132 #define DEV_CAP_EXT_2_FLAG_VLAN_CONTROL (1 << 26)
1133 #define DEV_CAP_EXT_2_FLAG_80_VFS (1 << 21)
1134 #define DEV_CAP_EXT_2_FLAG_FSM (1 << 20)
1135
1136 int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
1137 struct mlx4_vhcr *vhcr,
1138 struct mlx4_cmd_mailbox *inbox,
1139 struct mlx4_cmd_mailbox *outbox,
1140 struct mlx4_cmd_info *cmd)
1141 {
1142 u64 flags;
1143 int err = 0;
1144 u8 field;
1145 u16 field16;
1146 u32 bmme_flags, field32;
1147 int real_port;
1148 int slave_port;
1149 int first_port;
1150 struct mlx4_active_ports actv_ports;
1151
1152 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1153 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1154 if (err)
1155 return err;
1156
1157 /* add port mng change event capability and disable mw type 1
1158 * unconditionally to slaves
1159 */
1160 MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1161 flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
1162 flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
1163 actv_ports = mlx4_get_active_ports(dev, slave);
1164 first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
1165 for (slave_port = 0, real_port = first_port;
1166 real_port < first_port +
1167 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
1168 ++real_port, ++slave_port) {
1169 if (flags & (MLX4_DEV_CAP_FLAG_WOL_PORT1 << real_port))
1170 flags |= MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port;
1171 else
1172 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1173 }
1174 for (; slave_port < dev->caps.num_ports; ++slave_port)
1175 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1176
1177 /* Not exposing RSS IP fragments to guests */
1178 flags &= ~MLX4_DEV_CAP_FLAG_RSS_IP_FRAG;
1179 MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1180
1181 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VL_PORT_OFFSET);
1182 field &= ~0x0F;
1183 field |= bitmap_weight(actv_ports.ports, dev->caps.num_ports) & 0x0F;
1184 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VL_PORT_OFFSET);
1185
1186 /* For guests, disable timestamp */
1187 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1188 field &= 0x7f;
1189 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1190
1191 /* For guests, disable vxlan tunneling and QoS support */
1192 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VXLAN);
1193 field &= 0xd7;
1194 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VXLAN);
1195
1196 /* For guests, disable port BEACON */
1197 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1198 field &= 0x7f;
1199 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1200
1201 /* For guests, report Blueflame disabled */
1202 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
1203 field &= 0x7f;
1204 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
1205
1206 /* For guests, disable mw type 2 and port remap*/
1207 MLX4_GET(bmme_flags, outbox->buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1208 bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN;
1209 bmme_flags &= ~MLX4_FLAG_PORT_REMAP;
1210 MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1211
1212 /* turn off device-managed steering capability if not enabled */
1213 if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
1214 MLX4_GET(field, outbox->buf,
1215 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1216 field &= 0x7f;
1217 MLX4_PUT(outbox->buf, field,
1218 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1219 }
1220
1221 /* turn off ipoib managed steering for guests */
1222 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1223 field &= ~0x80;
1224 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1225
1226 /* turn off host side virt features (VST, FSM, etc) for guests */
1227 MLX4_GET(field32, outbox->buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1228 field32 &= ~(DEV_CAP_EXT_2_FLAG_VLAN_CONTROL | DEV_CAP_EXT_2_FLAG_80_VFS |
1229 DEV_CAP_EXT_2_FLAG_FSM | DEV_CAP_EXT_2_FLAG_PFC_COUNTERS);
1230 MLX4_PUT(outbox->buf, field32, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1231
1232 /* turn off QCN for guests */
1233 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1234 field &= 0xfe;
1235 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1236
1237 /* turn off QP max-rate limiting for guests */
1238 field16 = 0;
1239 MLX4_PUT(outbox->buf, field16, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
1240
1241 /* turn off QoS per VF support for guests */
1242 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1243 field &= 0xef;
1244 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1245
1246 /* turn off ignore FCS feature for guests */
1247 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1248 field &= 0xfb;
1249 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1250
1251 return 0;
1252 }
1253
1254 int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
1255 struct mlx4_vhcr *vhcr,
1256 struct mlx4_cmd_mailbox *inbox,
1257 struct mlx4_cmd_mailbox *outbox,
1258 struct mlx4_cmd_info *cmd)
1259 {
1260 struct mlx4_priv *priv = mlx4_priv(dev);
1261 u64 def_mac;
1262 u8 port_type;
1263 u16 short_field;
1264 int err;
1265 int admin_link_state;
1266 int port = mlx4_slave_convert_port(dev, slave,
1267 vhcr->in_modifier & 0xFF);
1268
1269 #define MLX4_VF_PORT_NO_LINK_SENSE_MASK 0xE0
1270 #define MLX4_PORT_LINK_UP_MASK 0x80
1271 #define QUERY_PORT_CUR_MAX_PKEY_OFFSET 0x0c
1272 #define QUERY_PORT_CUR_MAX_GID_OFFSET 0x0e
1273
1274 if (port < 0)
1275 return -EINVAL;
1276
1277 /* Protect against untrusted guests: enforce that this is the
1278 * QUERY_PORT general query.
1279 */
1280 if (vhcr->op_modifier || vhcr->in_modifier & ~0xFF)
1281 return -EINVAL;
1282
1283 vhcr->in_modifier = port;
1284
1285 err = mlx4_cmd_box(dev, 0, outbox->dma, vhcr->in_modifier, 0,
1286 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1287 MLX4_CMD_NATIVE);
1288
1289 if (!err && dev->caps.function != slave) {
1290 def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac;
1291 MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET);
1292
1293 /* get port type - currently only eth is enabled */
1294 MLX4_GET(port_type, outbox->buf,
1295 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1296
1297 /* No link sensing allowed */
1298 port_type &= MLX4_VF_PORT_NO_LINK_SENSE_MASK;
1299 /* set port type to currently operating port type */
1300 port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
1301
1302 admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
1303 if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
1304 port_type |= MLX4_PORT_LINK_UP_MASK;
1305 else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
1306 port_type &= ~MLX4_PORT_LINK_UP_MASK;
1307
1308 MLX4_PUT(outbox->buf, port_type,
1309 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1310
1311 if (dev->caps.port_type[vhcr->in_modifier] == MLX4_PORT_TYPE_ETH)
1312 short_field = mlx4_get_slave_num_gids(dev, slave, port);
1313 else
1314 short_field = 1; /* slave max gids */
1315 MLX4_PUT(outbox->buf, short_field,
1316 QUERY_PORT_CUR_MAX_GID_OFFSET);
1317
1318 short_field = dev->caps.pkey_table_len[vhcr->in_modifier];
1319 MLX4_PUT(outbox->buf, short_field,
1320 QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1321 }
1322
1323 return err;
1324 }
1325
1326 int mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev *dev, u8 port,
1327 int *gid_tbl_len, int *pkey_tbl_len)
1328 {
1329 struct mlx4_cmd_mailbox *mailbox;
1330 u32 *outbox;
1331 u16 field;
1332 int err;
1333
1334 mailbox = mlx4_alloc_cmd_mailbox(dev);
1335 if (IS_ERR(mailbox))
1336 return PTR_ERR(mailbox);
1337
1338 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0,
1339 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1340 MLX4_CMD_WRAPPED);
1341 if (err)
1342 goto out;
1343
1344 outbox = mailbox->buf;
1345
1346 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_GID_OFFSET);
1347 *gid_tbl_len = field;
1348
1349 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1350 *pkey_tbl_len = field;
1351
1352 out:
1353 mlx4_free_cmd_mailbox(dev, mailbox);
1354 return err;
1355 }
1356 EXPORT_SYMBOL(mlx4_get_slave_pkey_gid_tbl_len);
1357
1358 int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
1359 {
1360 struct mlx4_cmd_mailbox *mailbox;
1361 struct mlx4_icm_iter iter;
1362 __be64 *pages;
1363 int lg;
1364 int nent = 0;
1365 int i;
1366 int err = 0;
1367 int ts = 0, tc = 0;
1368
1369 mailbox = mlx4_alloc_cmd_mailbox(dev);
1370 if (IS_ERR(mailbox))
1371 return PTR_ERR(mailbox);
1372 pages = mailbox->buf;
1373
1374 for (mlx4_icm_first(icm, &iter);
1375 !mlx4_icm_last(&iter);
1376 mlx4_icm_next(&iter)) {
1377 /*
1378 * We have to pass pages that are aligned to their
1379 * size, so find the least significant 1 in the
1380 * address or size and use that as our log2 size.
1381 */
1382 lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
1383 if (lg < MLX4_ICM_PAGE_SHIFT) {
1384 mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx)\n",
1385 MLX4_ICM_PAGE_SIZE,
1386 (unsigned long long) mlx4_icm_addr(&iter),
1387 mlx4_icm_size(&iter));
1388 err = -EINVAL;
1389 goto out;
1390 }
1391
1392 for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
1393 if (virt != -1) {
1394 pages[nent * 2] = cpu_to_be64(virt);
1395 virt += 1 << lg;
1396 }
1397
1398 pages[nent * 2 + 1] =
1399 cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
1400 (lg - MLX4_ICM_PAGE_SHIFT));
1401 ts += 1 << (lg - 10);
1402 ++tc;
1403
1404 if (++nent == MLX4_MAILBOX_SIZE / 16) {
1405 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1406 MLX4_CMD_TIME_CLASS_B,
1407 MLX4_CMD_NATIVE);
1408 if (err)
1409 goto out;
1410 nent = 0;
1411 }
1412 }
1413 }
1414
1415 if (nent)
1416 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1417 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1418 if (err)
1419 goto out;
1420
1421 switch (op) {
1422 case MLX4_CMD_MAP_FA:
1423 mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW\n", tc, ts);
1424 break;
1425 case MLX4_CMD_MAP_ICM_AUX:
1426 mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux\n", tc, ts);
1427 break;
1428 case MLX4_CMD_MAP_ICM:
1429 mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM\n",
1430 tc, ts, (unsigned long long) virt - (ts << 10));
1431 break;
1432 }
1433
1434 out:
1435 mlx4_free_cmd_mailbox(dev, mailbox);
1436 return err;
1437 }
1438
1439 int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
1440 {
1441 return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
1442 }
1443
1444 int mlx4_UNMAP_FA(struct mlx4_dev *dev)
1445 {
1446 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA,
1447 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1448 }
1449
1450
1451 int mlx4_RUN_FW(struct mlx4_dev *dev)
1452 {
1453 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW,
1454 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1455 }
1456
1457 int mlx4_QUERY_FW(struct mlx4_dev *dev)
1458 {
1459 struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
1460 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
1461 struct mlx4_cmd_mailbox *mailbox;
1462 u32 *outbox;
1463 int err = 0;
1464 u64 fw_ver;
1465 u16 cmd_if_rev;
1466 u8 lg;
1467
1468 #define QUERY_FW_OUT_SIZE 0x100
1469 #define QUERY_FW_VER_OFFSET 0x00
1470 #define QUERY_FW_PPF_ID 0x09
1471 #define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
1472 #define QUERY_FW_MAX_CMD_OFFSET 0x0f
1473 #define QUERY_FW_ERR_START_OFFSET 0x30
1474 #define QUERY_FW_ERR_SIZE_OFFSET 0x38
1475 #define QUERY_FW_ERR_BAR_OFFSET 0x3c
1476
1477 #define QUERY_FW_SIZE_OFFSET 0x00
1478 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
1479 #define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
1480
1481 #define QUERY_FW_COMM_BASE_OFFSET 0x40
1482 #define QUERY_FW_COMM_BAR_OFFSET 0x48
1483
1484 #define QUERY_FW_CLOCK_OFFSET 0x50
1485 #define QUERY_FW_CLOCK_BAR 0x58
1486
1487 mailbox = mlx4_alloc_cmd_mailbox(dev);
1488 if (IS_ERR(mailbox))
1489 return PTR_ERR(mailbox);
1490 outbox = mailbox->buf;
1491
1492 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1493 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1494 if (err)
1495 goto out;
1496
1497 MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
1498 /*
1499 * FW subminor version is at more significant bits than minor
1500 * version, so swap here.
1501 */
1502 dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
1503 ((fw_ver & 0xffff0000ull) >> 16) |
1504 ((fw_ver & 0x0000ffffull) << 16);
1505
1506 MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
1507 dev->caps.function = lg;
1508
1509 if (mlx4_is_slave(dev))
1510 goto out;
1511
1512
1513 MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
1514 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
1515 cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
1516 mlx4_err(dev, "Installed FW has unsupported command interface revision %d\n",
1517 cmd_if_rev);
1518 mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
1519 (int) (dev->caps.fw_ver >> 32),
1520 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1521 (int) dev->caps.fw_ver & 0xffff);
1522 mlx4_err(dev, "This driver version supports only revisions %d to %d\n",
1523 MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
1524 err = -ENODEV;
1525 goto out;
1526 }
1527
1528 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
1529 dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
1530
1531 MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
1532 cmd->max_cmds = 1 << lg;
1533
1534 mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
1535 (int) (dev->caps.fw_ver >> 32),
1536 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1537 (int) dev->caps.fw_ver & 0xffff,
1538 cmd_if_rev, cmd->max_cmds);
1539
1540 MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
1541 MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
1542 MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
1543 fw->catas_bar = (fw->catas_bar >> 6) * 2;
1544
1545 mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
1546 (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
1547
1548 MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
1549 MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
1550 MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
1551 fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
1552
1553 MLX4_GET(fw->comm_base, outbox, QUERY_FW_COMM_BASE_OFFSET);
1554 MLX4_GET(fw->comm_bar, outbox, QUERY_FW_COMM_BAR_OFFSET);
1555 fw->comm_bar = (fw->comm_bar >> 6) * 2;
1556 mlx4_dbg(dev, "Communication vector bar:%d offset:0x%llx\n",
1557 fw->comm_bar, fw->comm_base);
1558 mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
1559
1560 MLX4_GET(fw->clock_offset, outbox, QUERY_FW_CLOCK_OFFSET);
1561 MLX4_GET(fw->clock_bar, outbox, QUERY_FW_CLOCK_BAR);
1562 fw->clock_bar = (fw->clock_bar >> 6) * 2;
1563 mlx4_dbg(dev, "Internal clock bar:%d offset:0x%llx\n",
1564 fw->clock_bar, fw->clock_offset);
1565
1566 /*
1567 * Round up number of system pages needed in case
1568 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
1569 */
1570 fw->fw_pages =
1571 ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
1572 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
1573
1574 mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
1575 (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
1576
1577 out:
1578 mlx4_free_cmd_mailbox(dev, mailbox);
1579 return err;
1580 }
1581
1582 int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
1583 struct mlx4_vhcr *vhcr,
1584 struct mlx4_cmd_mailbox *inbox,
1585 struct mlx4_cmd_mailbox *outbox,
1586 struct mlx4_cmd_info *cmd)
1587 {
1588 u8 *outbuf;
1589 int err;
1590
1591 outbuf = outbox->buf;
1592 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1593 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1594 if (err)
1595 return err;
1596
1597 /* for slaves, set pci PPF ID to invalid and zero out everything
1598 * else except FW version */
1599 outbuf[0] = outbuf[1] = 0;
1600 memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
1601 outbuf[QUERY_FW_PPF_ID] = MLX4_INVALID_SLAVE_ID;
1602
1603 return 0;
1604 }
1605
1606 static void get_board_id(void *vsd, char *board_id)
1607 {
1608 int i;
1609
1610 #define VSD_OFFSET_SIG1 0x00
1611 #define VSD_OFFSET_SIG2 0xde
1612 #define VSD_OFFSET_MLX_BOARD_ID 0xd0
1613 #define VSD_OFFSET_TS_BOARD_ID 0x20
1614
1615 #define VSD_SIGNATURE_TOPSPIN 0x5ad
1616
1617 memset(board_id, 0, MLX4_BOARD_ID_LEN);
1618
1619 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1620 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1621 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
1622 } else {
1623 /*
1624 * The board ID is a string but the firmware byte
1625 * swaps each 4-byte word before passing it back to
1626 * us. Therefore we need to swab it before printing.
1627 */
1628 u32 *bid_u32 = (u32 *)board_id;
1629
1630 for (i = 0; i < 4; ++i) {
1631 u32 *addr;
1632 u32 val;
1633
1634 addr = (u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4);
1635 val = get_unaligned(addr);
1636 val = swab32(val);
1637 put_unaligned(val, &bid_u32[i]);
1638 }
1639 }
1640 }
1641
1642 int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
1643 {
1644 struct mlx4_cmd_mailbox *mailbox;
1645 u32 *outbox;
1646 int err;
1647
1648 #define QUERY_ADAPTER_OUT_SIZE 0x100
1649 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
1650 #define QUERY_ADAPTER_VSD_OFFSET 0x20
1651
1652 mailbox = mlx4_alloc_cmd_mailbox(dev);
1653 if (IS_ERR(mailbox))
1654 return PTR_ERR(mailbox);
1655 outbox = mailbox->buf;
1656
1657 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
1658 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1659 if (err)
1660 goto out;
1661
1662 MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1663
1664 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1665 adapter->board_id);
1666
1667 out:
1668 mlx4_free_cmd_mailbox(dev, mailbox);
1669 return err;
1670 }
1671
1672 int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
1673 {
1674 struct mlx4_cmd_mailbox *mailbox;
1675 __be32 *inbox;
1676 int err;
1677 static const u8 a0_dmfs_hw_steering[] = {
1678 [MLX4_STEERING_DMFS_A0_DEFAULT] = 0,
1679 [MLX4_STEERING_DMFS_A0_DYNAMIC] = 1,
1680 [MLX4_STEERING_DMFS_A0_STATIC] = 2,
1681 [MLX4_STEERING_DMFS_A0_DISABLE] = 3
1682 };
1683
1684 #define INIT_HCA_IN_SIZE 0x200
1685 #define INIT_HCA_VERSION_OFFSET 0x000
1686 #define INIT_HCA_VERSION 2
1687 #define INIT_HCA_VXLAN_OFFSET 0x0c
1688 #define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
1689 #define INIT_HCA_FLAGS_OFFSET 0x014
1690 #define INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET 0x018
1691 #define INIT_HCA_QPC_OFFSET 0x020
1692 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1693 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1694 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1695 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1696 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1697 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1698 #define INIT_HCA_EQE_CQE_OFFSETS (INIT_HCA_QPC_OFFSET + 0x38)
1699 #define INIT_HCA_EQE_CQE_STRIDE_OFFSET (INIT_HCA_QPC_OFFSET + 0x3b)
1700 #define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1701 #define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1702 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1703 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1704 #define INIT_HCA_NUM_SYS_EQS_OFFSET (INIT_HCA_QPC_OFFSET + 0x6a)
1705 #define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1706 #define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
1707 #define INIT_HCA_MCAST_OFFSET 0x0c0
1708 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1709 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1710 #define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
1711 #define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
1712 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1713 #define INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN 0x6
1714 #define INIT_HCA_FS_PARAM_OFFSET 0x1d0
1715 #define INIT_HCA_FS_BASE_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x00)
1716 #define INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x12)
1717 #define INIT_HCA_FS_A0_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x18)
1718 #define INIT_HCA_FS_LOG_TABLE_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x1b)
1719 #define INIT_HCA_FS_ETH_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x21)
1720 #define INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x22)
1721 #define INIT_HCA_FS_IB_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x25)
1722 #define INIT_HCA_FS_IB_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x26)
1723 #define INIT_HCA_TPT_OFFSET 0x0f0
1724 #define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1725 #define INIT_HCA_TPT_MW_OFFSET (INIT_HCA_TPT_OFFSET + 0x08)
1726 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1727 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1728 #define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
1729 #define INIT_HCA_UAR_OFFSET 0x120
1730 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1731 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1732
1733 mailbox = mlx4_alloc_cmd_mailbox(dev);
1734 if (IS_ERR(mailbox))
1735 return PTR_ERR(mailbox);
1736 inbox = mailbox->buf;
1737
1738 *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
1739
1740 *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
1741 (ilog2(cache_line_size()) - 4) << 5;
1742
1743 #if defined(__LITTLE_ENDIAN)
1744 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1745 #elif defined(__BIG_ENDIAN)
1746 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1747 #else
1748 #error Host endianness not defined
1749 #endif
1750 /* Check port for UD address vector: */
1751 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1752
1753 /* Enable IPoIB checksumming if we can: */
1754 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
1755 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
1756
1757 /* Enable QoS support if module parameter set */
1758 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG && enable_qos)
1759 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
1760
1761 /* enable counters */
1762 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1763 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
1764
1765 /* Enable RSS spread to fragmented IP packets when supported */
1766 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_RSS_IP_FRAG)
1767 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 13);
1768
1769 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
1770 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_EQE) {
1771 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 29);
1772 dev->caps.eqe_size = 64;
1773 dev->caps.eqe_factor = 1;
1774 } else {
1775 dev->caps.eqe_size = 32;
1776 dev->caps.eqe_factor = 0;
1777 }
1778
1779 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_CQE) {
1780 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 30);
1781 dev->caps.cqe_size = 64;
1782 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1783 } else {
1784 dev->caps.cqe_size = 32;
1785 }
1786
1787 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
1788 if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) &&
1789 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) {
1790 dev->caps.eqe_size = cache_line_size();
1791 dev->caps.cqe_size = cache_line_size();
1792 dev->caps.eqe_factor = 0;
1793 MLX4_PUT(inbox, (u8)((ilog2(dev->caps.eqe_size) - 5) << 4 |
1794 (ilog2(dev->caps.eqe_size) - 5)),
1795 INIT_HCA_EQE_CQE_STRIDE_OFFSET);
1796
1797 /* User still need to know to support CQE > 32B */
1798 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1799 }
1800
1801 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT)
1802 *(inbox + INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET / 4) |= cpu_to_be32(1 << 31);
1803
1804 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1805
1806 MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1807 MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1808 MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1809 MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1810 MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1811 MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1812 MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
1813 MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
1814 MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1815 MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1816 MLX4_PUT(inbox, param->num_sys_eqs, INIT_HCA_NUM_SYS_EQS_OFFSET);
1817 MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
1818 MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
1819
1820 /* steering attributes */
1821 if (dev->caps.steering_mode ==
1822 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1823 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |=
1824 cpu_to_be32(1 <<
1825 INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN);
1826
1827 MLX4_PUT(inbox, param->mc_base, INIT_HCA_FS_BASE_OFFSET);
1828 MLX4_PUT(inbox, param->log_mc_entry_sz,
1829 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
1830 MLX4_PUT(inbox, param->log_mc_table_sz,
1831 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
1832 /* Enable Ethernet flow steering
1833 * with udp unicast and tcp unicast
1834 */
1835 if (dev->caps.dmfs_high_steer_mode !=
1836 MLX4_STEERING_DMFS_A0_STATIC)
1837 MLX4_PUT(inbox,
1838 (u8)(MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1839 INIT_HCA_FS_ETH_BITS_OFFSET);
1840 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1841 INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET);
1842 /* Enable IPoIB flow steering
1843 * with udp unicast and tcp unicast
1844 */
1845 MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1846 INIT_HCA_FS_IB_BITS_OFFSET);
1847 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1848 INIT_HCA_FS_IB_NUM_ADDRS_OFFSET);
1849
1850 if (dev->caps.dmfs_high_steer_mode !=
1851 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1852 MLX4_PUT(inbox,
1853 ((u8)(a0_dmfs_hw_steering[dev->caps.dmfs_high_steer_mode]
1854 << 6)),
1855 INIT_HCA_FS_A0_OFFSET);
1856 } else {
1857 MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
1858 MLX4_PUT(inbox, param->log_mc_entry_sz,
1859 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1860 MLX4_PUT(inbox, param->log_mc_hash_sz,
1861 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
1862 MLX4_PUT(inbox, param->log_mc_table_sz,
1863 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1864 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0)
1865 MLX4_PUT(inbox, (u8) (1 << 3),
1866 INIT_HCA_UC_STEERING_OFFSET);
1867 }
1868
1869 /* TPT attributes */
1870
1871 MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
1872 MLX4_PUT(inbox, param->mw_enabled, INIT_HCA_TPT_MW_OFFSET);
1873 MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
1874 MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
1875 MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
1876
1877 /* UAR attributes */
1878
1879 MLX4_PUT(inbox, param->uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1880 MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
1881
1882 /* set parser VXLAN attributes */
1883 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) {
1884 u8 parser_params = 0;
1885 MLX4_PUT(inbox, parser_params, INIT_HCA_VXLAN_OFFSET);
1886 }
1887
1888 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA,
1889 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
1890
1891 if (err)
1892 mlx4_err(dev, "INIT_HCA returns %d\n", err);
1893
1894 mlx4_free_cmd_mailbox(dev, mailbox);
1895 return err;
1896 }
1897
1898 int mlx4_QUERY_HCA(struct mlx4_dev *dev,
1899 struct mlx4_init_hca_param *param)
1900 {
1901 struct mlx4_cmd_mailbox *mailbox;
1902 __be32 *outbox;
1903 u32 dword_field;
1904 int err;
1905 u8 byte_field;
1906 static const u8 a0_dmfs_query_hw_steering[] = {
1907 [0] = MLX4_STEERING_DMFS_A0_DEFAULT,
1908 [1] = MLX4_STEERING_DMFS_A0_DYNAMIC,
1909 [2] = MLX4_STEERING_DMFS_A0_STATIC,
1910 [3] = MLX4_STEERING_DMFS_A0_DISABLE
1911 };
1912
1913 #define QUERY_HCA_GLOBAL_CAPS_OFFSET 0x04
1914 #define QUERY_HCA_CORE_CLOCK_OFFSET 0x0c
1915
1916 mailbox = mlx4_alloc_cmd_mailbox(dev);
1917 if (IS_ERR(mailbox))
1918 return PTR_ERR(mailbox);
1919 outbox = mailbox->buf;
1920
1921 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
1922 MLX4_CMD_QUERY_HCA,
1923 MLX4_CMD_TIME_CLASS_B,
1924 !mlx4_is_slave(dev));
1925 if (err)
1926 goto out;
1927
1928 MLX4_GET(param->global_caps, outbox, QUERY_HCA_GLOBAL_CAPS_OFFSET);
1929 MLX4_GET(param->hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
1930
1931 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1932
1933 MLX4_GET(param->qpc_base, outbox, INIT_HCA_QPC_BASE_OFFSET);
1934 MLX4_GET(param->log_num_qps, outbox, INIT_HCA_LOG_QP_OFFSET);
1935 MLX4_GET(param->srqc_base, outbox, INIT_HCA_SRQC_BASE_OFFSET);
1936 MLX4_GET(param->log_num_srqs, outbox, INIT_HCA_LOG_SRQ_OFFSET);
1937 MLX4_GET(param->cqc_base, outbox, INIT_HCA_CQC_BASE_OFFSET);
1938 MLX4_GET(param->log_num_cqs, outbox, INIT_HCA_LOG_CQ_OFFSET);
1939 MLX4_GET(param->altc_base, outbox, INIT_HCA_ALTC_BASE_OFFSET);
1940 MLX4_GET(param->auxc_base, outbox, INIT_HCA_AUXC_BASE_OFFSET);
1941 MLX4_GET(param->eqc_base, outbox, INIT_HCA_EQC_BASE_OFFSET);
1942 MLX4_GET(param->log_num_eqs, outbox, INIT_HCA_LOG_EQ_OFFSET);
1943 MLX4_GET(param->num_sys_eqs, outbox, INIT_HCA_NUM_SYS_EQS_OFFSET);
1944 MLX4_GET(param->rdmarc_base, outbox, INIT_HCA_RDMARC_BASE_OFFSET);
1945 MLX4_GET(param->log_rd_per_qp, outbox, INIT_HCA_LOG_RD_OFFSET);
1946
1947 MLX4_GET(dword_field, outbox, INIT_HCA_FLAGS_OFFSET);
1948 if (dword_field & (1 << INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN)) {
1949 param->steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1950 } else {
1951 MLX4_GET(byte_field, outbox, INIT_HCA_UC_STEERING_OFFSET);
1952 if (byte_field & 0x8)
1953 param->steering_mode = MLX4_STEERING_MODE_B0;
1954 else
1955 param->steering_mode = MLX4_STEERING_MODE_A0;
1956 }
1957
1958 if (dword_field & (1 << 13))
1959 param->rss_ip_frags = 1;
1960
1961 /* steering attributes */
1962 if (param->steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
1963 MLX4_GET(param->mc_base, outbox, INIT_HCA_FS_BASE_OFFSET);
1964 MLX4_GET(param->log_mc_entry_sz, outbox,
1965 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
1966 MLX4_GET(param->log_mc_table_sz, outbox,
1967 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
1968 MLX4_GET(byte_field, outbox,
1969 INIT_HCA_FS_A0_OFFSET);
1970 param->dmfs_high_steer_mode =
1971 a0_dmfs_query_hw_steering[(byte_field >> 6) & 3];
1972 } else {
1973 MLX4_GET(param->mc_base, outbox, INIT_HCA_MC_BASE_OFFSET);
1974 MLX4_GET(param->log_mc_entry_sz, outbox,
1975 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1976 MLX4_GET(param->log_mc_hash_sz, outbox,
1977 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
1978 MLX4_GET(param->log_mc_table_sz, outbox,
1979 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1980 }
1981
1982 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
1983 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_OFFSETS);
1984 if (byte_field & 0x20) /* 64-bytes eqe enabled */
1985 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_EQE_ENABLED;
1986 if (byte_field & 0x40) /* 64-bytes cqe enabled */
1987 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_CQE_ENABLED;
1988
1989 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
1990 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_STRIDE_OFFSET);
1991 if (byte_field) {
1992 param->dev_cap_enabled |= MLX4_DEV_CAP_EQE_STRIDE_ENABLED;
1993 param->dev_cap_enabled |= MLX4_DEV_CAP_CQE_STRIDE_ENABLED;
1994 param->cqe_size = 1 << ((byte_field &
1995 MLX4_CQE_SIZE_MASK_STRIDE) + 5);
1996 param->eqe_size = 1 << (((byte_field &
1997 MLX4_EQE_SIZE_MASK_STRIDE) >> 4) + 5);
1998 }
1999
2000 /* TPT attributes */
2001
2002 MLX4_GET(param->dmpt_base, outbox, INIT_HCA_DMPT_BASE_OFFSET);
2003 MLX4_GET(param->mw_enabled, outbox, INIT_HCA_TPT_MW_OFFSET);
2004 MLX4_GET(param->log_mpt_sz, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
2005 MLX4_GET(param->mtt_base, outbox, INIT_HCA_MTT_BASE_OFFSET);
2006 MLX4_GET(param->cmpt_base, outbox, INIT_HCA_CMPT_BASE_OFFSET);
2007
2008 /* UAR attributes */
2009
2010 MLX4_GET(param->uar_page_sz, outbox, INIT_HCA_UAR_PAGE_SZ_OFFSET);
2011 MLX4_GET(param->log_uar_sz, outbox, INIT_HCA_LOG_UAR_SZ_OFFSET);
2012
2013 /* phv_check enable */
2014 MLX4_GET(byte_field, outbox, INIT_HCA_CACHELINE_SZ_OFFSET);
2015 if (byte_field & 0x2)
2016 param->phv_check_en = 1;
2017 out:
2018 mlx4_free_cmd_mailbox(dev, mailbox);
2019
2020 return err;
2021 }
2022
2023 static int mlx4_hca_core_clock_update(struct mlx4_dev *dev)
2024 {
2025 struct mlx4_cmd_mailbox *mailbox;
2026 __be32 *outbox;
2027 int err;
2028
2029 mailbox = mlx4_alloc_cmd_mailbox(dev);
2030 if (IS_ERR(mailbox)) {
2031 mlx4_warn(dev, "hca_core_clock mailbox allocation failed\n");
2032 return PTR_ERR(mailbox);
2033 }
2034 outbox = mailbox->buf;
2035
2036 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2037 MLX4_CMD_QUERY_HCA,
2038 MLX4_CMD_TIME_CLASS_B,
2039 !mlx4_is_slave(dev));
2040 if (err) {
2041 mlx4_warn(dev, "hca_core_clock update failed\n");
2042 goto out;
2043 }
2044
2045 MLX4_GET(dev->caps.hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
2046
2047 out:
2048 mlx4_free_cmd_mailbox(dev, mailbox);
2049
2050 return err;
2051 }
2052
2053 /* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
2054 * and real QP0 are active, so that the paravirtualized QP0 is ready
2055 * to operate */
2056 static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
2057 {
2058 struct mlx4_priv *priv = mlx4_priv(dev);
2059 /* irrelevant if not infiniband */
2060 if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
2061 priv->mfunc.master.qp0_state[port].qp0_active)
2062 return 1;
2063 return 0;
2064 }
2065
2066 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
2067 struct mlx4_vhcr *vhcr,
2068 struct mlx4_cmd_mailbox *inbox,
2069 struct mlx4_cmd_mailbox *outbox,
2070 struct mlx4_cmd_info *cmd)
2071 {
2072 struct mlx4_priv *priv = mlx4_priv(dev);
2073 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2074 int err;
2075
2076 if (port < 0)
2077 return -EINVAL;
2078
2079 if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
2080 return 0;
2081
2082 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2083 /* Enable port only if it was previously disabled */
2084 if (!priv->mfunc.master.init_port_ref[port]) {
2085 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2086 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2087 if (err)
2088 return err;
2089 }
2090 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2091 } else {
2092 if (slave == mlx4_master_func_num(dev)) {
2093 if (check_qp0_state(dev, slave, port) &&
2094 !priv->mfunc.master.qp0_state[port].port_active) {
2095 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2096 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2097 if (err)
2098 return err;
2099 priv->mfunc.master.qp0_state[port].port_active = 1;
2100 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2101 }
2102 } else
2103 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2104 }
2105 ++priv->mfunc.master.init_port_ref[port];
2106 return 0;
2107 }
2108
2109 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
2110 {
2111 struct mlx4_cmd_mailbox *mailbox;
2112 u32 *inbox;
2113 int err;
2114 u32 flags;
2115 u16 field;
2116
2117 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
2118 #define INIT_PORT_IN_SIZE 256
2119 #define INIT_PORT_FLAGS_OFFSET 0x00
2120 #define INIT_PORT_FLAG_SIG (1 << 18)
2121 #define INIT_PORT_FLAG_NG (1 << 17)
2122 #define INIT_PORT_FLAG_G0 (1 << 16)
2123 #define INIT_PORT_VL_SHIFT 4
2124 #define INIT_PORT_PORT_WIDTH_SHIFT 8
2125 #define INIT_PORT_MTU_OFFSET 0x04
2126 #define INIT_PORT_MAX_GID_OFFSET 0x06
2127 #define INIT_PORT_MAX_PKEY_OFFSET 0x0a
2128 #define INIT_PORT_GUID0_OFFSET 0x10
2129 #define INIT_PORT_NODE_GUID_OFFSET 0x18
2130 #define INIT_PORT_SI_GUID_OFFSET 0x20
2131
2132 mailbox = mlx4_alloc_cmd_mailbox(dev);
2133 if (IS_ERR(mailbox))
2134 return PTR_ERR(mailbox);
2135 inbox = mailbox->buf;
2136
2137 flags = 0;
2138 flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
2139 flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
2140 MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
2141
2142 field = 128 << dev->caps.ib_mtu_cap[port];
2143 MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
2144 field = dev->caps.gid_table_len[port];
2145 MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
2146 field = dev->caps.pkey_table_len[port];
2147 MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
2148
2149 err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
2150 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2151
2152 mlx4_free_cmd_mailbox(dev, mailbox);
2153 } else
2154 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2155 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2156
2157 if (!err)
2158 mlx4_hca_core_clock_update(dev);
2159
2160 return err;
2161 }
2162 EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
2163
2164 int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
2165 struct mlx4_vhcr *vhcr,
2166 struct mlx4_cmd_mailbox *inbox,
2167 struct mlx4_cmd_mailbox *outbox,
2168 struct mlx4_cmd_info *cmd)
2169 {
2170 struct mlx4_priv *priv = mlx4_priv(dev);
2171 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2172 int err;
2173
2174 if (port < 0)
2175 return -EINVAL;
2176
2177 if (!(priv->mfunc.master.slave_state[slave].init_port_mask &
2178 (1 << port)))
2179 return 0;
2180
2181 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2182 if (priv->mfunc.master.init_port_ref[port] == 1) {
2183 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2184 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2185 if (err)
2186 return err;
2187 }
2188 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2189 } else {
2190 /* infiniband port */
2191 if (slave == mlx4_master_func_num(dev)) {
2192 if (!priv->mfunc.master.qp0_state[port].qp0_active &&
2193 priv->mfunc.master.qp0_state[port].port_active) {
2194 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2195 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2196 if (err)
2197 return err;
2198 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2199 priv->mfunc.master.qp0_state[port].port_active = 0;
2200 }
2201 } else
2202 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2203 }
2204 --priv->mfunc.master.init_port_ref[port];
2205 return 0;
2206 }
2207
2208 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
2209 {
2210 return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2211 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2212 }
2213 EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
2214
2215 int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
2216 {
2217 return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA,
2218 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
2219 }
2220
2221 struct mlx4_config_dev {
2222 __be32 update_flags;
2223 __be32 rsvd1[3];
2224 __be16 vxlan_udp_dport;
2225 __be16 rsvd2;
2226 __be32 rsvd3;
2227 __be32 roce_flags;
2228 __be32 rsvd4[25];
2229 __be16 rsvd5;
2230 u8 rsvd6;
2231 u8 rx_checksum_val;
2232 };
2233
2234 #define MLX4_VXLAN_UDP_DPORT (1 << 0)
2235 #define MLX4_DISABLE_RX_PORT BIT(18)
2236
2237 static int mlx4_CONFIG_DEV_set(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2238 {
2239 int err;
2240 struct mlx4_cmd_mailbox *mailbox;
2241
2242 mailbox = mlx4_alloc_cmd_mailbox(dev);
2243 if (IS_ERR(mailbox))
2244 return PTR_ERR(mailbox);
2245
2246 memcpy(mailbox->buf, config_dev, sizeof(*config_dev));
2247
2248 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_CONFIG_DEV,
2249 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2250
2251 mlx4_free_cmd_mailbox(dev, mailbox);
2252 return err;
2253 }
2254
2255 static int mlx4_CONFIG_DEV_get(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2256 {
2257 int err;
2258 struct mlx4_cmd_mailbox *mailbox;
2259
2260 mailbox = mlx4_alloc_cmd_mailbox(dev);
2261 if (IS_ERR(mailbox))
2262 return PTR_ERR(mailbox);
2263
2264 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 1, MLX4_CMD_CONFIG_DEV,
2265 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2266
2267 if (!err)
2268 memcpy(config_dev, mailbox->buf, sizeof(*config_dev));
2269
2270 mlx4_free_cmd_mailbox(dev, mailbox);
2271 return err;
2272 }
2273
2274 /* Conversion between the HW values and the actual functionality.
2275 * The value represented by the array index,
2276 * and the functionality determined by the flags.
2277 */
2278 static const u8 config_dev_csum_flags[] = {
2279 [0] = 0,
2280 [1] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP,
2281 [2] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP |
2282 MLX4_RX_CSUM_MODE_L4,
2283 [3] = MLX4_RX_CSUM_MODE_L4 |
2284 MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP |
2285 MLX4_RX_CSUM_MODE_MULTI_VLAN
2286 };
2287
2288 int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
2289 struct mlx4_config_dev_params *params)
2290 {
2291 struct mlx4_config_dev config_dev = {0};
2292 int err;
2293 u8 csum_mask;
2294
2295 #define CONFIG_DEV_RX_CSUM_MODE_MASK 0x7
2296 #define CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET 0
2297 #define CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET 4
2298
2299 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CONFIG_DEV))
2300 return -ENOTSUPP;
2301
2302 err = mlx4_CONFIG_DEV_get(dev, &config_dev);
2303 if (err)
2304 return err;
2305
2306 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET) &
2307 CONFIG_DEV_RX_CSUM_MODE_MASK;
2308
2309 if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
2310 return -EINVAL;
2311 params->rx_csum_flags_port_1 = config_dev_csum_flags[csum_mask];
2312
2313 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET) &
2314 CONFIG_DEV_RX_CSUM_MODE_MASK;
2315
2316 if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
2317 return -EINVAL;
2318 params->rx_csum_flags_port_2 = config_dev_csum_flags[csum_mask];
2319
2320 params->vxlan_udp_dport = be16_to_cpu(config_dev.vxlan_udp_dport);
2321
2322 return 0;
2323 }
2324 EXPORT_SYMBOL_GPL(mlx4_config_dev_retrieval);
2325
2326 int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port)
2327 {
2328 struct mlx4_config_dev config_dev;
2329
2330 memset(&config_dev, 0, sizeof(config_dev));
2331 config_dev.update_flags = cpu_to_be32(MLX4_VXLAN_UDP_DPORT);
2332 config_dev.vxlan_udp_dport = udp_port;
2333
2334 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2335 }
2336 EXPORT_SYMBOL_GPL(mlx4_config_vxlan_port);
2337
2338 #define CONFIG_DISABLE_RX_PORT BIT(15)
2339 int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis)
2340 {
2341 struct mlx4_config_dev config_dev;
2342
2343 memset(&config_dev, 0, sizeof(config_dev));
2344 config_dev.update_flags = cpu_to_be32(MLX4_DISABLE_RX_PORT);
2345 if (dis)
2346 config_dev.roce_flags =
2347 cpu_to_be32(CONFIG_DISABLE_RX_PORT);
2348
2349 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2350 }
2351
2352 int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2)
2353 {
2354 struct mlx4_cmd_mailbox *mailbox;
2355 struct {
2356 __be32 v_port1;
2357 __be32 v_port2;
2358 } *v2p;
2359 int err;
2360
2361 mailbox = mlx4_alloc_cmd_mailbox(dev);
2362 if (IS_ERR(mailbox))
2363 return -ENOMEM;
2364
2365 v2p = mailbox->buf;
2366 v2p->v_port1 = cpu_to_be32(port1);
2367 v2p->v_port2 = cpu_to_be32(port2);
2368
2369 err = mlx4_cmd(dev, mailbox->dma, 0,
2370 MLX4_SET_PORT_VIRT2PHY, MLX4_CMD_VIRT_PORT_MAP,
2371 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2372
2373 mlx4_free_cmd_mailbox(dev, mailbox);
2374 return err;
2375 }
2376
2377
2378 int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
2379 {
2380 int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
2381 MLX4_CMD_SET_ICM_SIZE,
2382 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2383 if (ret)
2384 return ret;
2385
2386 /*
2387 * Round up number of system pages needed in case
2388 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
2389 */
2390 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
2391 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
2392
2393 return 0;
2394 }
2395
2396 int mlx4_NOP(struct mlx4_dev *dev)
2397 {
2398 /* Input modifier of 0x1f means "finish as soon as possible." */
2399 return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, MLX4_CMD_TIME_CLASS_A,
2400 MLX4_CMD_NATIVE);
2401 }
2402
2403 int mlx4_get_phys_port_id(struct mlx4_dev *dev)
2404 {
2405 u8 port;
2406 u32 *outbox;
2407 struct mlx4_cmd_mailbox *mailbox;
2408 u32 in_mod;
2409 u32 guid_hi, guid_lo;
2410 int err, ret = 0;
2411 #define MOD_STAT_CFG_PORT_OFFSET 8
2412 #define MOD_STAT_CFG_GUID_H 0X14
2413 #define MOD_STAT_CFG_GUID_L 0X1c
2414
2415 mailbox = mlx4_alloc_cmd_mailbox(dev);
2416 if (IS_ERR(mailbox))
2417 return PTR_ERR(mailbox);
2418 outbox = mailbox->buf;
2419
2420 for (port = 1; port <= dev->caps.num_ports; port++) {
2421 in_mod = port << MOD_STAT_CFG_PORT_OFFSET;
2422 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_mod, 0x2,
2423 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2424 MLX4_CMD_NATIVE);
2425 if (err) {
2426 mlx4_err(dev, "Fail to get port %d uplink guid\n",
2427 port);
2428 ret = err;
2429 } else {
2430 MLX4_GET(guid_hi, outbox, MOD_STAT_CFG_GUID_H);
2431 MLX4_GET(guid_lo, outbox, MOD_STAT_CFG_GUID_L);
2432 dev->caps.phys_port_id[port] = (u64)guid_lo |
2433 (u64)guid_hi << 32;
2434 }
2435 }
2436 mlx4_free_cmd_mailbox(dev, mailbox);
2437 return ret;
2438 }
2439
2440 #define MLX4_WOL_SETUP_MODE (5 << 28)
2441 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
2442 {
2443 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2444
2445 return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
2446 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2447 MLX4_CMD_NATIVE);
2448 }
2449 EXPORT_SYMBOL_GPL(mlx4_wol_read);
2450
2451 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
2452 {
2453 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2454
2455 return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
2456 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2457 }
2458 EXPORT_SYMBOL_GPL(mlx4_wol_write);
2459
2460 enum {
2461 ADD_TO_MCG = 0x26,
2462 };
2463
2464
2465 void mlx4_opreq_action(struct work_struct *work)
2466 {
2467 struct mlx4_priv *priv = container_of(work, struct mlx4_priv,
2468 opreq_task);
2469 struct mlx4_dev *dev = &priv->dev;
2470 int num_tasks = atomic_read(&priv->opreq_count);
2471 struct mlx4_cmd_mailbox *mailbox;
2472 struct mlx4_mgm *mgm;
2473 u32 *outbox;
2474 u32 modifier;
2475 u16 token;
2476 u16 type;
2477 int err;
2478 u32 num_qps;
2479 struct mlx4_qp qp;
2480 int i;
2481 u8 rem_mcg;
2482 u8 prot;
2483
2484 #define GET_OP_REQ_MODIFIER_OFFSET 0x08
2485 #define GET_OP_REQ_TOKEN_OFFSET 0x14
2486 #define GET_OP_REQ_TYPE_OFFSET 0x1a
2487 #define GET_OP_REQ_DATA_OFFSET 0x20
2488
2489 mailbox = mlx4_alloc_cmd_mailbox(dev);
2490 if (IS_ERR(mailbox)) {
2491 mlx4_err(dev, "Failed to allocate mailbox for GET_OP_REQ\n");
2492 return;
2493 }
2494 outbox = mailbox->buf;
2495
2496 while (num_tasks) {
2497 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2498 MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2499 MLX4_CMD_NATIVE);
2500 if (err) {
2501 mlx4_err(dev, "Failed to retrieve required operation: %d\n",
2502 err);
2503 return;
2504 }
2505 MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
2506 MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
2507 MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
2508 type &= 0xfff;
2509
2510 switch (type) {
2511 case ADD_TO_MCG:
2512 if (dev->caps.steering_mode ==
2513 MLX4_STEERING_MODE_DEVICE_MANAGED) {
2514 mlx4_warn(dev, "ADD MCG operation is not supported in DEVICE_MANAGED steering mode\n");
2515 err = EPERM;
2516 break;
2517 }
2518 mgm = (struct mlx4_mgm *)((u8 *)(outbox) +
2519 GET_OP_REQ_DATA_OFFSET);
2520 num_qps = be32_to_cpu(mgm->members_count) &
2521 MGM_QPN_MASK;
2522 rem_mcg = ((u8 *)(&mgm->members_count))[0] & 1;
2523 prot = ((u8 *)(&mgm->members_count))[0] >> 6;
2524
2525 for (i = 0; i < num_qps; i++) {
2526 qp.qpn = be32_to_cpu(mgm->qp[i]);
2527 if (rem_mcg)
2528 err = mlx4_multicast_detach(dev, &qp,
2529 mgm->gid,
2530 prot, 0);
2531 else
2532 err = mlx4_multicast_attach(dev, &qp,
2533 mgm->gid,
2534 mgm->gid[5]
2535 , 0, prot,
2536 NULL);
2537 if (err)
2538 break;
2539 }
2540 break;
2541 default:
2542 mlx4_warn(dev, "Bad type for required operation\n");
2543 err = EINVAL;
2544 break;
2545 }
2546 err = mlx4_cmd(dev, 0, ((u32) err |
2547 (__force u32)cpu_to_be32(token) << 16),
2548 1, MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2549 MLX4_CMD_NATIVE);
2550 if (err) {
2551 mlx4_err(dev, "Failed to acknowledge required request: %d\n",
2552 err);
2553 goto out;
2554 }
2555 memset(outbox, 0, 0xffc);
2556 num_tasks = atomic_dec_return(&priv->opreq_count);
2557 }
2558
2559 out:
2560 mlx4_free_cmd_mailbox(dev, mailbox);
2561 }
2562
2563 static int mlx4_check_smp_firewall_active(struct mlx4_dev *dev,
2564 struct mlx4_cmd_mailbox *mailbox)
2565 {
2566 #define MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET 0x10
2567 #define MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET 0x20
2568 #define MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET 0x40
2569 #define MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET 0x70
2570
2571 u32 set_attr_mask, getresp_attr_mask;
2572 u32 trap_attr_mask, traprepress_attr_mask;
2573
2574 MLX4_GET(set_attr_mask, mailbox->buf,
2575 MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET);
2576 mlx4_dbg(dev, "SMP firewall set_attribute_mask = 0x%x\n",
2577 set_attr_mask);
2578
2579 MLX4_GET(getresp_attr_mask, mailbox->buf,
2580 MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET);
2581 mlx4_dbg(dev, "SMP firewall getresp_attribute_mask = 0x%x\n",
2582 getresp_attr_mask);
2583
2584 MLX4_GET(trap_attr_mask, mailbox->buf,
2585 MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET);
2586 mlx4_dbg(dev, "SMP firewall trap_attribute_mask = 0x%x\n",
2587 trap_attr_mask);
2588
2589 MLX4_GET(traprepress_attr_mask, mailbox->buf,
2590 MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET);
2591 mlx4_dbg(dev, "SMP firewall traprepress_attribute_mask = 0x%x\n",
2592 traprepress_attr_mask);
2593
2594 if (set_attr_mask && getresp_attr_mask && trap_attr_mask &&
2595 traprepress_attr_mask)
2596 return 1;
2597
2598 return 0;
2599 }
2600
2601 int mlx4_config_mad_demux(struct mlx4_dev *dev)
2602 {
2603 struct mlx4_cmd_mailbox *mailbox;
2604 int secure_host_active;
2605 int err;
2606
2607 /* Check if mad_demux is supported */
2608 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_MAD_DEMUX))
2609 return 0;
2610
2611 mailbox = mlx4_alloc_cmd_mailbox(dev);
2612 if (IS_ERR(mailbox)) {
2613 mlx4_warn(dev, "Failed to allocate mailbox for cmd MAD_DEMUX");
2614 return -ENOMEM;
2615 }
2616
2617 /* Query mad_demux to find out which MADs are handled by internal sma */
2618 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0x01 /* subn mgmt class */,
2619 MLX4_CMD_MAD_DEMUX_QUERY_RESTR, MLX4_CMD_MAD_DEMUX,
2620 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2621 if (err) {
2622 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: query restrictions failed (%d)\n",
2623 err);
2624 goto out;
2625 }
2626
2627 secure_host_active = mlx4_check_smp_firewall_active(dev, mailbox);
2628
2629 /* Config mad_demux to handle all MADs returned by the query above */
2630 err = mlx4_cmd(dev, mailbox->dma, 0x01 /* subn mgmt class */,
2631 MLX4_CMD_MAD_DEMUX_CONFIG, MLX4_CMD_MAD_DEMUX,
2632 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2633 if (err) {
2634 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: configure failed (%d)\n", err);
2635 goto out;
2636 }
2637
2638 if (secure_host_active)
2639 mlx4_warn(dev, "HCA operating in secure-host mode. SMP firewall activated.\n");
2640 out:
2641 mlx4_free_cmd_mailbox(dev, mailbox);
2642 return err;
2643 }
2644
2645 /* Access Reg commands */
2646 enum mlx4_access_reg_masks {
2647 MLX4_ACCESS_REG_STATUS_MASK = 0x7f,
2648 MLX4_ACCESS_REG_METHOD_MASK = 0x7f,
2649 MLX4_ACCESS_REG_LEN_MASK = 0x7ff
2650 };
2651
2652 struct mlx4_access_reg {
2653 __be16 constant1;
2654 u8 status;
2655 u8 resrvd1;
2656 __be16 reg_id;
2657 u8 method;
2658 u8 constant2;
2659 __be32 resrvd2[2];
2660 __be16 len_const;
2661 __be16 resrvd3;
2662 #define MLX4_ACCESS_REG_HEADER_SIZE (20)
2663 u8 reg_data[MLX4_MAILBOX_SIZE-MLX4_ACCESS_REG_HEADER_SIZE];
2664 } __attribute__((__packed__));
2665
2666 /**
2667 * mlx4_ACCESS_REG - Generic access reg command.
2668 * @dev: mlx4_dev.
2669 * @reg_id: register ID to access.
2670 * @method: Access method Read/Write.
2671 * @reg_len: register length to Read/Write in bytes.
2672 * @reg_data: reg_data pointer to Read/Write From/To.
2673 *
2674 * Access ConnectX registers FW command.
2675 * Returns 0 on success and copies outbox mlx4_access_reg data
2676 * field into reg_data or a negative error code.
2677 */
2678 static int mlx4_ACCESS_REG(struct mlx4_dev *dev, u16 reg_id,
2679 enum mlx4_access_reg_method method,
2680 u16 reg_len, void *reg_data)
2681 {
2682 struct mlx4_cmd_mailbox *inbox, *outbox;
2683 struct mlx4_access_reg *inbuf, *outbuf;
2684 int err;
2685
2686 inbox = mlx4_alloc_cmd_mailbox(dev);
2687 if (IS_ERR(inbox))
2688 return PTR_ERR(inbox);
2689
2690 outbox = mlx4_alloc_cmd_mailbox(dev);
2691 if (IS_ERR(outbox)) {
2692 mlx4_free_cmd_mailbox(dev, inbox);
2693 return PTR_ERR(outbox);
2694 }
2695
2696 inbuf = inbox->buf;
2697 outbuf = outbox->buf;
2698
2699 inbuf->constant1 = cpu_to_be16(0x1<<11 | 0x4);
2700 inbuf->constant2 = 0x1;
2701 inbuf->reg_id = cpu_to_be16(reg_id);
2702 inbuf->method = method & MLX4_ACCESS_REG_METHOD_MASK;
2703
2704 reg_len = min(reg_len, (u16)(sizeof(inbuf->reg_data)));
2705 inbuf->len_const =
2706 cpu_to_be16(((reg_len/4 + 1) & MLX4_ACCESS_REG_LEN_MASK) |
2707 ((0x3) << 12));
2708
2709 memcpy(inbuf->reg_data, reg_data, reg_len);
2710 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 0, 0,
2711 MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2712 MLX4_CMD_WRAPPED);
2713 if (err)
2714 goto out;
2715
2716 if (outbuf->status & MLX4_ACCESS_REG_STATUS_MASK) {
2717 err = outbuf->status & MLX4_ACCESS_REG_STATUS_MASK;
2718 mlx4_err(dev,
2719 "MLX4_CMD_ACCESS_REG(%x) returned REG status (%x)\n",
2720 reg_id, err);
2721 goto out;
2722 }
2723
2724 memcpy(reg_data, outbuf->reg_data, reg_len);
2725 out:
2726 mlx4_free_cmd_mailbox(dev, inbox);
2727 mlx4_free_cmd_mailbox(dev, outbox);
2728 return err;
2729 }
2730
2731 /* ConnectX registers IDs */
2732 enum mlx4_reg_id {
2733 MLX4_REG_ID_PTYS = 0x5004,
2734 };
2735
2736 /**
2737 * mlx4_ACCESS_PTYS_REG - Access PTYs (Port Type and Speed)
2738 * register
2739 * @dev: mlx4_dev.
2740 * @method: Access method Read/Write.
2741 * @ptys_reg: PTYS register data pointer.
2742 *
2743 * Access ConnectX PTYS register, to Read/Write Port Type/Speed
2744 * configuration
2745 * Returns 0 on success or a negative error code.
2746 */
2747 int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
2748 enum mlx4_access_reg_method method,
2749 struct mlx4_ptys_reg *ptys_reg)
2750 {
2751 return mlx4_ACCESS_REG(dev, MLX4_REG_ID_PTYS,
2752 method, sizeof(*ptys_reg), ptys_reg);
2753 }
2754 EXPORT_SYMBOL_GPL(mlx4_ACCESS_PTYS_REG);
2755
2756 int mlx4_ACCESS_REG_wrapper(struct mlx4_dev *dev, int slave,
2757 struct mlx4_vhcr *vhcr,
2758 struct mlx4_cmd_mailbox *inbox,
2759 struct mlx4_cmd_mailbox *outbox,
2760 struct mlx4_cmd_info *cmd)
2761 {
2762 struct mlx4_access_reg *inbuf = inbox->buf;
2763 u8 method = inbuf->method & MLX4_ACCESS_REG_METHOD_MASK;
2764 u16 reg_id = be16_to_cpu(inbuf->reg_id);
2765
2766 if (slave != mlx4_master_func_num(dev) &&
2767 method == MLX4_ACCESS_REG_WRITE)
2768 return -EPERM;
2769
2770 if (reg_id == MLX4_REG_ID_PTYS) {
2771 struct mlx4_ptys_reg *ptys_reg =
2772 (struct mlx4_ptys_reg *)inbuf->reg_data;
2773
2774 ptys_reg->local_port =
2775 mlx4_slave_convert_port(dev, slave,
2776 ptys_reg->local_port);
2777 }
2778
2779 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier,
2780 0, MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2781 MLX4_CMD_NATIVE);
2782 }
2783
2784 static int mlx4_SET_PORT_phv_bit(struct mlx4_dev *dev, u8 port, u8 phv_bit)
2785 {
2786 #define SET_PORT_GEN_PHV_VALID 0x10
2787 #define SET_PORT_GEN_PHV_EN 0x80
2788
2789 struct mlx4_cmd_mailbox *mailbox;
2790 struct mlx4_set_port_general_context *context;
2791 u32 in_mod;
2792 int err;
2793
2794 mailbox = mlx4_alloc_cmd_mailbox(dev);
2795 if (IS_ERR(mailbox))
2796 return PTR_ERR(mailbox);
2797 context = mailbox->buf;
2798
2799 context->v_ignore_fcs |= SET_PORT_GEN_PHV_VALID;
2800 if (phv_bit)
2801 context->phv_en |= SET_PORT_GEN_PHV_EN;
2802
2803 in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
2804 err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE,
2805 MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
2806 MLX4_CMD_NATIVE);
2807
2808 mlx4_free_cmd_mailbox(dev, mailbox);
2809 return err;
2810 }
2811
2812 int get_phv_bit(struct mlx4_dev *dev, u8 port, int *phv)
2813 {
2814 int err;
2815 struct mlx4_func_cap func_cap;
2816
2817 memset(&func_cap, 0, sizeof(func_cap));
2818 err = mlx4_QUERY_FUNC_CAP(dev, port, &func_cap);
2819 if (!err)
2820 *phv = func_cap.flags & QUERY_FUNC_CAP_PHV_BIT;
2821 return err;
2822 }
2823 EXPORT_SYMBOL(get_phv_bit);
2824
2825 int set_phv_bit(struct mlx4_dev *dev, u8 port, int new_val)
2826 {
2827 int ret;
2828
2829 if (mlx4_is_slave(dev))
2830 return -EPERM;
2831
2832 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
2833 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
2834 ret = mlx4_SET_PORT_phv_bit(dev, port, new_val);
2835 if (!ret)
2836 dev->caps.phv_bit[port] = new_val;
2837 return ret;
2838 }
2839
2840 return -EOPNOTSUPP;
2841 }
2842 EXPORT_SYMBOL(set_phv_bit);
2843
2844 void mlx4_replace_zero_macs(struct mlx4_dev *dev)
2845 {
2846 int i;
2847 u8 mac_addr[ETH_ALEN];
2848
2849 dev->port_random_macs = 0;
2850 for (i = 1; i <= dev->caps.num_ports; ++i)
2851 if (!dev->caps.def_mac[i] &&
2852 dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) {
2853 eth_random_addr(mac_addr);
2854 dev->port_random_macs |= 1 << i;
2855 dev->caps.def_mac[i] = mlx4_mac_to_u64(mac_addr);
2856 }
2857 }
2858 EXPORT_SYMBOL_GPL(mlx4_replace_zero_macs);
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