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[mirror_ubuntu-bionic-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;
53 module_param(enable_qos, bool, 0444);
54 MODULE_PARM_DESC(enable_qos, "Enable Enhanced QoS support (default: off)");
55
56 #define MLX4_GET(dest, source, offset) \
57 do { \
58 void *__p = (char *) (source) + (offset); \
59 u64 val; \
60 switch (sizeof (dest)) { \
61 case 1: (dest) = *(u8 *) __p; break; \
62 case 2: (dest) = be16_to_cpup(__p); break; \
63 case 4: (dest) = be32_to_cpup(__p); break; \
64 case 8: val = get_unaligned((u64 *)__p); \
65 (dest) = be64_to_cpu(val); break; \
66 default: __buggy_use_of_MLX4_GET(); \
67 } \
68 } while (0)
69
70 #define MLX4_PUT(dest, source, offset) \
71 do { \
72 void *__d = ((char *) (dest) + (offset)); \
73 switch (sizeof(source)) { \
74 case 1: *(u8 *) __d = (source); break; \
75 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
76 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
77 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
78 default: __buggy_use_of_MLX4_PUT(); \
79 } \
80 } while (0)
81
82 static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
83 {
84 static const char *fname[] = {
85 [ 0] = "RC transport",
86 [ 1] = "UC transport",
87 [ 2] = "UD transport",
88 [ 3] = "XRC transport",
89 [ 6] = "SRQ support",
90 [ 7] = "IPoIB checksum offload",
91 [ 8] = "P_Key violation counter",
92 [ 9] = "Q_Key violation counter",
93 [12] = "Dual Port Different Protocol (DPDP) support",
94 [15] = "Big LSO headers",
95 [16] = "MW support",
96 [17] = "APM support",
97 [18] = "Atomic ops support",
98 [19] = "Raw multicast support",
99 [20] = "Address vector port checking support",
100 [21] = "UD multicast support",
101 [30] = "IBoE support",
102 [32] = "Unicast loopback support",
103 [34] = "FCS header control",
104 [37] = "Wake On LAN (port1) support",
105 [38] = "Wake On LAN (port2) support",
106 [40] = "UDP RSS support",
107 [41] = "Unicast VEP steering support",
108 [42] = "Multicast VEP steering support",
109 [48] = "Counters support",
110 [52] = "RSS IP fragments support",
111 [53] = "Port ETS Scheduler support",
112 [55] = "Port link type sensing support",
113 [59] = "Port management change event support",
114 [61] = "64 byte EQE support",
115 [62] = "64 byte CQE support",
116 };
117 int i;
118
119 mlx4_dbg(dev, "DEV_CAP flags:\n");
120 for (i = 0; i < ARRAY_SIZE(fname); ++i)
121 if (fname[i] && (flags & (1LL << i)))
122 mlx4_dbg(dev, " %s\n", fname[i]);
123 }
124
125 static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
126 {
127 static const char * const fname[] = {
128 [0] = "RSS support",
129 [1] = "RSS Toeplitz Hash Function support",
130 [2] = "RSS XOR Hash Function support",
131 [3] = "Device managed flow steering support",
132 [4] = "Automatic MAC reassignment support",
133 [5] = "Time stamping support",
134 [6] = "VST (control vlan insertion/stripping) support",
135 [7] = "FSM (MAC anti-spoofing) support",
136 [8] = "Dynamic QP updates support",
137 [9] = "Device managed flow steering IPoIB support",
138 [10] = "TCP/IP offloads/flow-steering for VXLAN support",
139 [11] = "MAD DEMUX (Secure-Host) support",
140 [12] = "Large cache line (>64B) CQE stride support",
141 [13] = "Large cache line (>64B) EQE stride support",
142 [14] = "Ethernet protocol control support",
143 [15] = "Ethernet Backplane autoneg support",
144 [16] = "CONFIG DEV support",
145 [17] = "Asymmetric EQs support",
146 [18] = "More than 80 VFs support",
147 [19] = "Performance optimized for limited rule configuration flow steering support",
148 [20] = "Recoverable error events support",
149 [21] = "Port Remap support",
150 [22] = "QCN support",
151 [23] = "QP rate limiting support",
152 [24] = "Ethernet Flow control statistics support",
153 [25] = "Granular QoS per VF support",
154 [26] = "Port ETS Scheduler support",
155 [27] = "Port beacon support",
156 [28] = "RX-ALL support",
157 [29] = "802.1ad offload support",
158 [31] = "Modifying loopback source checks using UPDATE_QP support",
159 [32] = "Loopback source checks support",
160 [33] = "RoCEv2 support",
161 [34] = "DMFS Sniffer support (UC & MC)",
162 [35] = "Diag counters per port",
163 [36] = "QinQ VST mode support",
164 [37] = "sl to vl mapping table change event support",
165 };
166 int i;
167
168 for (i = 0; i < ARRAY_SIZE(fname); ++i)
169 if (fname[i] && (flags & (1LL << i)))
170 mlx4_dbg(dev, " %s\n", fname[i]);
171 }
172
173 int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
174 {
175 struct mlx4_cmd_mailbox *mailbox;
176 u32 *inbox;
177 int err = 0;
178
179 #define MOD_STAT_CFG_IN_SIZE 0x100
180
181 #define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
182 #define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
183
184 mailbox = mlx4_alloc_cmd_mailbox(dev);
185 if (IS_ERR(mailbox))
186 return PTR_ERR(mailbox);
187 inbox = mailbox->buf;
188
189 MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
190 MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
191
192 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
193 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
194
195 mlx4_free_cmd_mailbox(dev, mailbox);
196 return err;
197 }
198
199 int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
200 {
201 struct mlx4_cmd_mailbox *mailbox;
202 u32 *outbox;
203 u8 in_modifier;
204 u8 field;
205 u16 field16;
206 int err;
207
208 #define QUERY_FUNC_BUS_OFFSET 0x00
209 #define QUERY_FUNC_DEVICE_OFFSET 0x01
210 #define QUERY_FUNC_FUNCTION_OFFSET 0x01
211 #define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
212 #define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
213 #define QUERY_FUNC_MAX_EQ_OFFSET 0x06
214 #define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
215
216 mailbox = mlx4_alloc_cmd_mailbox(dev);
217 if (IS_ERR(mailbox))
218 return PTR_ERR(mailbox);
219 outbox = mailbox->buf;
220
221 in_modifier = slave;
222
223 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
224 MLX4_CMD_QUERY_FUNC,
225 MLX4_CMD_TIME_CLASS_A,
226 MLX4_CMD_NATIVE);
227 if (err)
228 goto out;
229
230 MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
231 func->bus = field & 0xf;
232 MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
233 func->device = field & 0xf1;
234 MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
235 func->function = field & 0x7;
236 MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
237 func->physical_function = field & 0xf;
238 MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
239 func->rsvd_eqs = field16 & 0xffff;
240 MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
241 func->max_eq = field16 & 0xffff;
242 MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
243 func->rsvd_uars = field & 0x0f;
244
245 mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
246 func->bus, func->device, func->function, func->physical_function,
247 func->max_eq, func->rsvd_eqs, func->rsvd_uars);
248
249 out:
250 mlx4_free_cmd_mailbox(dev, mailbox);
251 return err;
252 }
253
254 static int mlx4_activate_vst_qinq(struct mlx4_priv *priv, int slave, int port)
255 {
256 struct mlx4_vport_oper_state *vp_oper;
257 struct mlx4_vport_state *vp_admin;
258 int err;
259
260 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
261 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
262
263 if (vp_admin->default_vlan != vp_oper->state.default_vlan) {
264 err = __mlx4_register_vlan(&priv->dev, port,
265 vp_admin->default_vlan,
266 &vp_oper->vlan_idx);
267 if (err) {
268 vp_oper->vlan_idx = NO_INDX;
269 mlx4_warn(&priv->dev,
270 "No vlan resources slave %d, port %d\n",
271 slave, port);
272 return err;
273 }
274 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n",
275 (int)(vp_oper->state.default_vlan),
276 vp_oper->vlan_idx, slave, port);
277 }
278 vp_oper->state.vlan_proto = vp_admin->vlan_proto;
279 vp_oper->state.default_vlan = vp_admin->default_vlan;
280 vp_oper->state.default_qos = vp_admin->default_qos;
281
282 return 0;
283 }
284
285 static int mlx4_handle_vst_qinq(struct mlx4_priv *priv, int slave, int port)
286 {
287 struct mlx4_vport_oper_state *vp_oper;
288 struct mlx4_slave_state *slave_state;
289 struct mlx4_vport_state *vp_admin;
290 int err;
291
292 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
293 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
294 slave_state = &priv->mfunc.master.slave_state[slave];
295
296 if ((vp_admin->vlan_proto != htons(ETH_P_8021AD)) ||
297 (!slave_state->active))
298 return 0;
299
300 if (vp_oper->state.vlan_proto == vp_admin->vlan_proto &&
301 vp_oper->state.default_vlan == vp_admin->default_vlan &&
302 vp_oper->state.default_qos == vp_admin->default_qos)
303 return 0;
304
305 if (!slave_state->vst_qinq_supported) {
306 /* Warn and revert the request to set vst QinQ mode */
307 vp_admin->vlan_proto = vp_oper->state.vlan_proto;
308 vp_admin->default_vlan = vp_oper->state.default_vlan;
309 vp_admin->default_qos = vp_oper->state.default_qos;
310
311 mlx4_warn(&priv->dev,
312 "Slave %d does not support VST QinQ mode\n", slave);
313 return 0;
314 }
315
316 err = mlx4_activate_vst_qinq(priv, slave, port);
317 return err;
318 }
319
320 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
321 struct mlx4_vhcr *vhcr,
322 struct mlx4_cmd_mailbox *inbox,
323 struct mlx4_cmd_mailbox *outbox,
324 struct mlx4_cmd_info *cmd)
325 {
326 struct mlx4_priv *priv = mlx4_priv(dev);
327 u8 field, port;
328 u32 size, proxy_qp, qkey;
329 int err = 0;
330 struct mlx4_func func;
331
332 #define QUERY_FUNC_CAP_FLAGS_OFFSET 0x0
333 #define QUERY_FUNC_CAP_NUM_PORTS_OFFSET 0x1
334 #define QUERY_FUNC_CAP_PF_BHVR_OFFSET 0x4
335 #define QUERY_FUNC_CAP_FMR_OFFSET 0x8
336 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP 0x10
337 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP 0x14
338 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP 0x18
339 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP 0x20
340 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP 0x24
341 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP 0x28
342 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET 0x2c
343 #define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET 0x30
344 #define QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET 0x48
345
346 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET 0x50
347 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET 0x54
348 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET 0x58
349 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET 0x60
350 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET 0x64
351 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET 0x68
352
353 #define QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET 0x6c
354
355 #define QUERY_FUNC_CAP_FMR_FLAG 0x80
356 #define QUERY_FUNC_CAP_FLAG_RDMA 0x40
357 #define QUERY_FUNC_CAP_FLAG_ETH 0x80
358 #define QUERY_FUNC_CAP_FLAG_QUOTAS 0x10
359 #define QUERY_FUNC_CAP_FLAG_RESD_LKEY 0x08
360 #define QUERY_FUNC_CAP_FLAG_VALID_MAILBOX 0x04
361
362 #define QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG (1UL << 31)
363 #define QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG (1UL << 30)
364
365 /* when opcode modifier = 1 */
366 #define QUERY_FUNC_CAP_PHYS_PORT_OFFSET 0x3
367 #define QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET 0x4
368 #define QUERY_FUNC_CAP_FLAGS0_OFFSET 0x8
369 #define QUERY_FUNC_CAP_FLAGS1_OFFSET 0xc
370
371 #define QUERY_FUNC_CAP_QP0_TUNNEL 0x10
372 #define QUERY_FUNC_CAP_QP0_PROXY 0x14
373 #define QUERY_FUNC_CAP_QP1_TUNNEL 0x18
374 #define QUERY_FUNC_CAP_QP1_PROXY 0x1c
375 #define QUERY_FUNC_CAP_PHYS_PORT_ID 0x28
376
377 #define QUERY_FUNC_CAP_FLAGS1_FORCE_MAC 0x40
378 #define QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN 0x80
379 #define QUERY_FUNC_CAP_FLAGS1_NIC_INFO 0x10
380 #define QUERY_FUNC_CAP_VF_ENABLE_QP0 0x08
381
382 #define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
383 #define QUERY_FUNC_CAP_PHV_BIT 0x40
384 #define QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE 0x20
385
386 #define QUERY_FUNC_CAP_SUPPORTS_VST_QINQ BIT(30)
387 #define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS BIT(31)
388
389 if (vhcr->op_modifier == 1) {
390 struct mlx4_active_ports actv_ports =
391 mlx4_get_active_ports(dev, slave);
392 int converted_port = mlx4_slave_convert_port(
393 dev, slave, vhcr->in_modifier);
394 struct mlx4_vport_oper_state *vp_oper;
395
396 if (converted_port < 0)
397 return -EINVAL;
398
399 vhcr->in_modifier = converted_port;
400 /* phys-port = logical-port */
401 field = vhcr->in_modifier -
402 find_first_bit(actv_ports.ports, dev->caps.num_ports);
403 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
404
405 port = vhcr->in_modifier;
406 proxy_qp = dev->phys_caps.base_proxy_sqpn + 8 * slave + port - 1;
407
408 /* Set nic_info bit to mark new fields support */
409 field = QUERY_FUNC_CAP_FLAGS1_NIC_INFO;
410
411 if (mlx4_vf_smi_enabled(dev, slave, port) &&
412 !mlx4_get_parav_qkey(dev, proxy_qp, &qkey)) {
413 field |= QUERY_FUNC_CAP_VF_ENABLE_QP0;
414 MLX4_PUT(outbox->buf, qkey,
415 QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
416 }
417 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
418
419 /* size is now the QP number */
420 size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + port - 1;
421 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
422
423 size += 2;
424 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
425
426 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP0_PROXY);
427 proxy_qp += 2;
428 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP1_PROXY);
429
430 MLX4_PUT(outbox->buf, dev->caps.phys_port_id[vhcr->in_modifier],
431 QUERY_FUNC_CAP_PHYS_PORT_ID);
432
433 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
434 err = mlx4_handle_vst_qinq(priv, slave, port);
435 if (err)
436 return err;
437
438 field = 0;
439 if (dev->caps.phv_bit[port])
440 field |= QUERY_FUNC_CAP_PHV_BIT;
441 if (vp_oper->state.vlan_proto == htons(ETH_P_8021AD))
442 field |= QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE;
443 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS0_OFFSET);
444
445 } else if (vhcr->op_modifier == 0) {
446 struct mlx4_active_ports actv_ports =
447 mlx4_get_active_ports(dev, slave);
448 struct mlx4_slave_state *slave_state =
449 &priv->mfunc.master.slave_state[slave];
450
451 /* enable rdma and ethernet interfaces, new quota locations,
452 * and reserved lkey
453 */
454 field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
455 QUERY_FUNC_CAP_FLAG_QUOTAS | QUERY_FUNC_CAP_FLAG_VALID_MAILBOX |
456 QUERY_FUNC_CAP_FLAG_RESD_LKEY);
457 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
458
459 field = min(
460 bitmap_weight(actv_ports.ports, dev->caps.num_ports),
461 dev->caps.num_ports);
462 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
463
464 size = dev->caps.function_caps; /* set PF behaviours */
465 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
466
467 field = 0; /* protected FMR support not available as yet */
468 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
469
470 size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
471 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
472 size = dev->caps.num_qps;
473 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
474
475 size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
476 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
477 size = dev->caps.num_srqs;
478 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
479
480 size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
481 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
482 size = dev->caps.num_cqs;
483 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
484
485 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) ||
486 mlx4_QUERY_FUNC(dev, &func, slave)) {
487 size = vhcr->in_modifier &
488 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
489 dev->caps.num_eqs :
490 rounddown_pow_of_two(dev->caps.num_eqs);
491 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
492 size = dev->caps.reserved_eqs;
493 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
494 } else {
495 size = vhcr->in_modifier &
496 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
497 func.max_eq :
498 rounddown_pow_of_two(func.max_eq);
499 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
500 size = func.rsvd_eqs;
501 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
502 }
503
504 size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
505 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
506 size = dev->caps.num_mpts;
507 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
508
509 size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
510 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
511 size = dev->caps.num_mtts;
512 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
513
514 size = dev->caps.num_mgms + dev->caps.num_amgms;
515 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
516 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
517
518 size = QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG |
519 QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG;
520 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
521
522 size = dev->caps.reserved_lkey + ((slave << 8) & 0xFF00);
523 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
524
525 if (vhcr->in_modifier & QUERY_FUNC_CAP_SUPPORTS_VST_QINQ)
526 slave_state->vst_qinq_supported = true;
527
528 } else
529 err = -EINVAL;
530
531 return err;
532 }
533
534 int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,
535 struct mlx4_func_cap *func_cap)
536 {
537 struct mlx4_cmd_mailbox *mailbox;
538 u32 *outbox;
539 u8 field, op_modifier;
540 u32 size, qkey;
541 int err = 0, quotas = 0;
542 u32 in_modifier;
543 u32 slave_caps;
544
545 op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
546 slave_caps = QUERY_FUNC_CAP_SUPPORTS_VST_QINQ |
547 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
548 in_modifier = op_modifier ? gen_or_port : slave_caps;
549
550 mailbox = mlx4_alloc_cmd_mailbox(dev);
551 if (IS_ERR(mailbox))
552 return PTR_ERR(mailbox);
553
554 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, op_modifier,
555 MLX4_CMD_QUERY_FUNC_CAP,
556 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
557 if (err)
558 goto out;
559
560 outbox = mailbox->buf;
561
562 if (!op_modifier) {
563 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
564 if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
565 mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
566 err = -EPROTONOSUPPORT;
567 goto out;
568 }
569 func_cap->flags = field;
570 quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
571
572 MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
573 func_cap->num_ports = field;
574
575 MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
576 func_cap->pf_context_behaviour = size;
577
578 if (quotas) {
579 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
580 func_cap->qp_quota = size & 0xFFFFFF;
581
582 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
583 func_cap->srq_quota = size & 0xFFFFFF;
584
585 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
586 func_cap->cq_quota = size & 0xFFFFFF;
587
588 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
589 func_cap->mpt_quota = size & 0xFFFFFF;
590
591 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
592 func_cap->mtt_quota = size & 0xFFFFFF;
593
594 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
595 func_cap->mcg_quota = size & 0xFFFFFF;
596
597 } else {
598 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
599 func_cap->qp_quota = size & 0xFFFFFF;
600
601 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
602 func_cap->srq_quota = size & 0xFFFFFF;
603
604 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
605 func_cap->cq_quota = size & 0xFFFFFF;
606
607 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
608 func_cap->mpt_quota = size & 0xFFFFFF;
609
610 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
611 func_cap->mtt_quota = size & 0xFFFFFF;
612
613 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
614 func_cap->mcg_quota = size & 0xFFFFFF;
615 }
616 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
617 func_cap->max_eq = size & 0xFFFFFF;
618
619 MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
620 func_cap->reserved_eq = size & 0xFFFFFF;
621
622 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_RESD_LKEY) {
623 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
624 func_cap->reserved_lkey = size;
625 } else {
626 func_cap->reserved_lkey = 0;
627 }
628
629 func_cap->extra_flags = 0;
630
631 /* Mailbox data from 0x6c and onward should only be treated if
632 * QUERY_FUNC_CAP_FLAG_VALID_MAILBOX is set in func_cap->flags
633 */
634 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_VALID_MAILBOX) {
635 MLX4_GET(size, outbox, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
636 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG)
637 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_BF_RES_QP;
638 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG)
639 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_A0_RES_QP;
640 }
641
642 goto out;
643 }
644
645 /* logical port query */
646 if (gen_or_port > dev->caps.num_ports) {
647 err = -EINVAL;
648 goto out;
649 }
650
651 MLX4_GET(func_cap->flags1, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
652 if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
653 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN) {
654 mlx4_err(dev, "VLAN is enforced on this port\n");
655 err = -EPROTONOSUPPORT;
656 goto out;
657 }
658
659 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
660 mlx4_err(dev, "Force mac is enabled on this port\n");
661 err = -EPROTONOSUPPORT;
662 goto out;
663 }
664 } else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
665 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
666 if (field & QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID) {
667 mlx4_err(dev, "phy_wqe_gid is enforced on this ib port\n");
668 err = -EPROTONOSUPPORT;
669 goto out;
670 }
671 }
672
673 MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
674 func_cap->physical_port = field;
675 if (func_cap->physical_port != gen_or_port) {
676 err = -EINVAL;
677 goto out;
678 }
679
680 if (func_cap->flags1 & QUERY_FUNC_CAP_VF_ENABLE_QP0) {
681 MLX4_GET(qkey, outbox, QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
682 func_cap->qp0_qkey = qkey;
683 } else {
684 func_cap->qp0_qkey = 0;
685 }
686
687 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
688 func_cap->qp0_tunnel_qpn = size & 0xFFFFFF;
689
690 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
691 func_cap->qp0_proxy_qpn = size & 0xFFFFFF;
692
693 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
694 func_cap->qp1_tunnel_qpn = size & 0xFFFFFF;
695
696 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
697 func_cap->qp1_proxy_qpn = size & 0xFFFFFF;
698
699 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_NIC_INFO)
700 MLX4_GET(func_cap->phys_port_id, outbox,
701 QUERY_FUNC_CAP_PHYS_PORT_ID);
702
703 MLX4_GET(func_cap->flags0, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
704
705 /* All other resources are allocated by the master, but we still report
706 * 'num' and 'reserved' capabilities as follows:
707 * - num remains the maximum resource index
708 * - 'num - reserved' is the total available objects of a resource, but
709 * resource indices may be less than 'reserved'
710 * TODO: set per-resource quotas */
711
712 out:
713 mlx4_free_cmd_mailbox(dev, mailbox);
714
715 return err;
716 }
717
718 static void disable_unsupported_roce_caps(void *buf);
719
720 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
721 {
722 struct mlx4_cmd_mailbox *mailbox;
723 u32 *outbox;
724 u8 field;
725 u32 field32, flags, ext_flags;
726 u16 size;
727 u16 stat_rate;
728 int err;
729 int i;
730
731 #define QUERY_DEV_CAP_OUT_SIZE 0x100
732 #define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
733 #define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
734 #define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
735 #define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
736 #define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
737 #define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
738 #define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
739 #define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
740 #define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
741 #define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
742 #define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
743 #define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
744 #define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
745 #define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
746 #define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
747 #define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
748 #define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
749 #define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
750 #define QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET 0x26
751 #define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
752 #define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
753 #define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
754 #define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
755 #define QUERY_DEV_CAP_RSS_OFFSET 0x2e
756 #define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
757 #define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
758 #define QUERY_DEV_CAP_PORT_BEACON_OFFSET 0x34
759 #define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
760 #define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
761 #define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
762 #define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
763 #define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
764 #define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
765 #define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET 0x3e
766 #define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
767 #define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
768 #define QUERY_DEV_CAP_WOL_OFFSET 0x43
769 #define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
770 #define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
771 #define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
772 #define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
773 #define QUERY_DEV_CAP_BF_OFFSET 0x4c
774 #define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
775 #define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
776 #define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
777 #define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
778 #define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
779 #define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
780 #define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
781 #define QUERY_DEV_CAP_SVLAN_BY_QP_OFFSET 0x5D
782 #define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
783 #define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
784 #define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
785 #define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
786 #define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
787 #define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
788 #define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
789 #define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
790 #define QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET 0x70
791 #define QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET 0x70
792 #define QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET 0x74
793 #define QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET 0x76
794 #define QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET 0x77
795 #define QUERY_DEV_CAP_SL2VL_EVENT_OFFSET 0x78
796 #define QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE 0x7a
797 #define QUERY_DEV_CAP_ECN_QCN_VER_OFFSET 0x7b
798 #define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
799 #define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
800 #define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
801 #define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
802 #define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
803 #define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
804 #define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
805 #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
806 #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
807 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
808 #define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
809 #define QUERY_DEV_CAP_CONFIG_DEV_OFFSET 0x94
810 #define QUERY_DEV_CAP_PHV_EN_OFFSET 0x96
811 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
812 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
813 #define QUERY_DEV_CAP_ETH_BACKPL_OFFSET 0x9c
814 #define QUERY_DEV_CAP_DIAG_RPRT_PER_PORT 0x9c
815 #define QUERY_DEV_CAP_FW_REASSIGN_MAC 0x9d
816 #define QUERY_DEV_CAP_VXLAN 0x9e
817 #define QUERY_DEV_CAP_MAD_DEMUX_OFFSET 0xb0
818 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET 0xa8
819 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET 0xac
820 #define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET 0xcc
821 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET 0xd0
822 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET 0xd2
823
824
825 dev_cap->flags2 = 0;
826 mailbox = mlx4_alloc_cmd_mailbox(dev);
827 if (IS_ERR(mailbox))
828 return PTR_ERR(mailbox);
829 outbox = mailbox->buf;
830
831 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
832 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
833 if (err)
834 goto out;
835
836 if (mlx4_is_mfunc(dev))
837 disable_unsupported_roce_caps(outbox);
838 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
839 dev_cap->reserved_qps = 1 << (field & 0xf);
840 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
841 dev_cap->max_qps = 1 << (field & 0x1f);
842 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
843 dev_cap->reserved_srqs = 1 << (field >> 4);
844 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
845 dev_cap->max_srqs = 1 << (field & 0x1f);
846 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
847 dev_cap->max_cq_sz = 1 << field;
848 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
849 dev_cap->reserved_cqs = 1 << (field & 0xf);
850 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
851 dev_cap->max_cqs = 1 << (field & 0x1f);
852 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
853 dev_cap->max_mpts = 1 << (field & 0x3f);
854 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
855 dev_cap->reserved_eqs = 1 << (field & 0xf);
856 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
857 dev_cap->max_eqs = 1 << (field & 0xf);
858 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
859 dev_cap->reserved_mtts = 1 << (field >> 4);
860 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
861 dev_cap->reserved_mrws = 1 << (field & 0xf);
862 MLX4_GET(size, outbox, QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET);
863 dev_cap->num_sys_eqs = size & 0xfff;
864 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
865 dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
866 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
867 dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
868 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
869 field &= 0x1f;
870 if (!field)
871 dev_cap->max_gso_sz = 0;
872 else
873 dev_cap->max_gso_sz = 1 << field;
874
875 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSS_OFFSET);
876 if (field & 0x20)
877 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_XOR;
878 if (field & 0x10)
879 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_TOP;
880 field &= 0xf;
881 if (field) {
882 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS;
883 dev_cap->max_rss_tbl_sz = 1 << field;
884 } else
885 dev_cap->max_rss_tbl_sz = 0;
886 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
887 dev_cap->max_rdma_global = 1 << (field & 0x3f);
888 MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
889 dev_cap->local_ca_ack_delay = field & 0x1f;
890 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
891 dev_cap->num_ports = field & 0xf;
892 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
893 dev_cap->max_msg_sz = 1 << (field & 0x1f);
894 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET);
895 if (field & 0x10)
896 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN;
897 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
898 if (field & 0x80)
899 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FS_EN;
900 dev_cap->fs_log_max_ucast_qp_range_size = field & 0x1f;
901 if (field & 0x20)
902 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER;
903 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
904 if (field & 0x80)
905 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_BEACON;
906 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
907 if (field & 0x80)
908 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_IPOIB;
909 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET);
910 dev_cap->fs_max_num_qp_per_entry = field;
911 MLX4_GET(field, outbox, QUERY_DEV_CAP_SL2VL_EVENT_OFFSET);
912 if (field & (1 << 5))
913 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT;
914 MLX4_GET(field, outbox, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
915 if (field & 0x1)
916 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QCN;
917 MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
918 dev_cap->stat_rate_support = stat_rate;
919 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
920 if (field & 0x80)
921 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;
922 MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
923 MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
924 dev_cap->flags = flags | (u64)ext_flags << 32;
925 MLX4_GET(field, outbox, QUERY_DEV_CAP_WOL_OFFSET);
926 dev_cap->wol_port[1] = !!(field & 0x20);
927 dev_cap->wol_port[2] = !!(field & 0x40);
928 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
929 dev_cap->reserved_uars = field >> 4;
930 MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
931 dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
932 MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
933 dev_cap->min_page_sz = 1 << field;
934
935 MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
936 if (field & 0x80) {
937 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
938 dev_cap->bf_reg_size = 1 << (field & 0x1f);
939 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
940 if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
941 field = 3;
942 dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
943 } else {
944 dev_cap->bf_reg_size = 0;
945 }
946
947 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
948 dev_cap->max_sq_sg = field;
949 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
950 dev_cap->max_sq_desc_sz = size;
951
952 MLX4_GET(field, outbox, QUERY_DEV_CAP_SVLAN_BY_QP_OFFSET);
953 if (field & 0x1)
954 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP;
955 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
956 dev_cap->max_qp_per_mcg = 1 << field;
957 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
958 dev_cap->reserved_mgms = field & 0xf;
959 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
960 dev_cap->max_mcgs = 1 << field;
961 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
962 dev_cap->reserved_pds = field >> 4;
963 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
964 dev_cap->max_pds = 1 << (field & 0x3f);
965 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
966 dev_cap->reserved_xrcds = field >> 4;
967 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
968 dev_cap->max_xrcds = 1 << (field & 0x1f);
969
970 MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
971 dev_cap->rdmarc_entry_sz = size;
972 MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
973 dev_cap->qpc_entry_sz = size;
974 MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
975 dev_cap->aux_entry_sz = size;
976 MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
977 dev_cap->altc_entry_sz = size;
978 MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
979 dev_cap->eqc_entry_sz = size;
980 MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
981 dev_cap->cqc_entry_sz = size;
982 MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
983 dev_cap->srq_entry_sz = size;
984 MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
985 dev_cap->cmpt_entry_sz = size;
986 MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
987 dev_cap->mtt_entry_sz = size;
988 MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
989 dev_cap->dmpt_entry_sz = size;
990
991 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
992 dev_cap->max_srq_sz = 1 << field;
993 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
994 dev_cap->max_qp_sz = 1 << field;
995 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
996 dev_cap->resize_srq = field & 1;
997 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
998 dev_cap->max_rq_sg = field;
999 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
1000 dev_cap->max_rq_desc_sz = size;
1001 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1002 if (field & (1 << 4))
1003 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QOS_VPP;
1004 if (field & (1 << 5))
1005 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL;
1006 if (field & (1 << 6))
1007 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
1008 if (field & (1 << 7))
1009 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
1010 MLX4_GET(dev_cap->bmme_flags, outbox,
1011 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1012 if (dev_cap->bmme_flags & MLX4_FLAG_ROCE_V1_V2)
1013 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ROCE_V1_V2;
1014 if (dev_cap->bmme_flags & MLX4_FLAG_PORT_REMAP)
1015 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_REMAP;
1016 MLX4_GET(field, outbox, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1017 if (field & 0x20)
1018 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CONFIG_DEV;
1019 if (field & (1 << 2))
1020 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
1021 MLX4_GET(field, outbox, QUERY_DEV_CAP_PHV_EN_OFFSET);
1022 if (field & 0x80)
1023 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PHV_EN;
1024 if (field & 0x40)
1025 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN;
1026
1027 MLX4_GET(dev_cap->reserved_lkey, outbox,
1028 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
1029 MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETH_BACKPL_OFFSET);
1030 if (field32 & (1 << 0))
1031 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
1032 if (field32 & (1 << 7))
1033 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT;
1034 MLX4_GET(field32, outbox, QUERY_DEV_CAP_DIAG_RPRT_PER_PORT);
1035 if (field32 & (1 << 17))
1036 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT;
1037 MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
1038 if (field & 1<<6)
1039 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;
1040 MLX4_GET(field, outbox, QUERY_DEV_CAP_VXLAN);
1041 if (field & 1<<3)
1042 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS;
1043 if (field & (1 << 5))
1044 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
1045 MLX4_GET(dev_cap->max_icm_sz, outbox,
1046 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
1047 if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1048 MLX4_GET(dev_cap->max_counters, outbox,
1049 QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
1050
1051 MLX4_GET(field32, outbox,
1052 QUERY_DEV_CAP_MAD_DEMUX_OFFSET);
1053 if (field32 & (1 << 0))
1054 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_MAD_DEMUX;
1055
1056 MLX4_GET(dev_cap->dmfs_high_rate_qpn_base, outbox,
1057 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET);
1058 dev_cap->dmfs_high_rate_qpn_base &= MGM_QPN_MASK;
1059 MLX4_GET(dev_cap->dmfs_high_rate_qpn_range, outbox,
1060 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET);
1061 dev_cap->dmfs_high_rate_qpn_range &= MGM_QPN_MASK;
1062
1063 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
1064 dev_cap->rl_caps.num_rates = size;
1065 if (dev_cap->rl_caps.num_rates) {
1066 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT;
1067 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET);
1068 dev_cap->rl_caps.max_val = size & 0xfff;
1069 dev_cap->rl_caps.max_unit = size >> 14;
1070 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET);
1071 dev_cap->rl_caps.min_val = size & 0xfff;
1072 dev_cap->rl_caps.min_unit = size >> 14;
1073 }
1074
1075 MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1076 if (field32 & (1 << 16))
1077 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
1078 if (field32 & (1 << 18))
1079 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP_SRC_CHECK_LB;
1080 if (field32 & (1 << 19))
1081 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_LB_SRC_CHK;
1082 if (field32 & (1 << 26))
1083 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
1084 if (field32 & (1 << 20))
1085 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FSM;
1086 if (field32 & (1 << 21))
1087 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_80_VFS;
1088
1089 for (i = 1; i <= dev_cap->num_ports; i++) {
1090 err = mlx4_QUERY_PORT(dev, i, dev_cap->port_cap + i);
1091 if (err)
1092 goto out;
1093 }
1094
1095 /*
1096 * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
1097 * we can't use any EQs whose doorbell falls on that page,
1098 * even if the EQ itself isn't reserved.
1099 */
1100 if (dev_cap->num_sys_eqs == 0)
1101 dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
1102 dev_cap->reserved_eqs);
1103 else
1104 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
1105
1106 out:
1107 mlx4_free_cmd_mailbox(dev, mailbox);
1108 return err;
1109 }
1110
1111 void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
1112 {
1113 if (dev_cap->bf_reg_size > 0)
1114 mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
1115 dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
1116 else
1117 mlx4_dbg(dev, "BlueFlame not available\n");
1118
1119 mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
1120 dev_cap->bmme_flags, dev_cap->reserved_lkey);
1121 mlx4_dbg(dev, "Max ICM size %lld MB\n",
1122 (unsigned long long) dev_cap->max_icm_sz >> 20);
1123 mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
1124 dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
1125 mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
1126 dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
1127 mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
1128 dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
1129 mlx4_dbg(dev, "Num sys EQs: %d, max EQs: %d, reserved EQs: %d, entry size: %d\n",
1130 dev_cap->num_sys_eqs, dev_cap->max_eqs, dev_cap->reserved_eqs,
1131 dev_cap->eqc_entry_sz);
1132 mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
1133 dev_cap->reserved_mrws, dev_cap->reserved_mtts);
1134 mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
1135 dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
1136 mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
1137 dev_cap->max_pds, dev_cap->reserved_mgms);
1138 mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
1139 dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
1140 mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
1141 dev_cap->local_ca_ack_delay, 128 << dev_cap->port_cap[1].ib_mtu,
1142 dev_cap->port_cap[1].max_port_width);
1143 mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
1144 dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
1145 mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
1146 dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
1147 mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
1148 mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
1149 mlx4_dbg(dev, "Max RSS Table size: %d\n", dev_cap->max_rss_tbl_sz);
1150 mlx4_dbg(dev, "DMFS high rate steer QPn base: %d\n",
1151 dev_cap->dmfs_high_rate_qpn_base);
1152 mlx4_dbg(dev, "DMFS high rate steer QPn range: %d\n",
1153 dev_cap->dmfs_high_rate_qpn_range);
1154
1155 if (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT) {
1156 struct mlx4_rate_limit_caps *rl_caps = &dev_cap->rl_caps;
1157
1158 mlx4_dbg(dev, "QP Rate-Limit: #rates %d, unit/val max %d/%d, min %d/%d\n",
1159 rl_caps->num_rates, rl_caps->max_unit, rl_caps->max_val,
1160 rl_caps->min_unit, rl_caps->min_val);
1161 }
1162
1163 dump_dev_cap_flags(dev, dev_cap->flags);
1164 dump_dev_cap_flags2(dev, dev_cap->flags2);
1165 }
1166
1167 int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap)
1168 {
1169 struct mlx4_cmd_mailbox *mailbox;
1170 u32 *outbox;
1171 u8 field;
1172 u32 field32;
1173 int err;
1174
1175 mailbox = mlx4_alloc_cmd_mailbox(dev);
1176 if (IS_ERR(mailbox))
1177 return PTR_ERR(mailbox);
1178 outbox = mailbox->buf;
1179
1180 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
1181 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1182 MLX4_CMD_TIME_CLASS_A,
1183 MLX4_CMD_NATIVE);
1184
1185 if (err)
1186 goto out;
1187
1188 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
1189 port_cap->max_vl = field >> 4;
1190 MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
1191 port_cap->ib_mtu = field >> 4;
1192 port_cap->max_port_width = field & 0xf;
1193 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
1194 port_cap->max_gids = 1 << (field & 0xf);
1195 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
1196 port_cap->max_pkeys = 1 << (field & 0xf);
1197 } else {
1198 #define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
1199 #define QUERY_PORT_MTU_OFFSET 0x01
1200 #define QUERY_PORT_ETH_MTU_OFFSET 0x02
1201 #define QUERY_PORT_WIDTH_OFFSET 0x06
1202 #define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
1203 #define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
1204 #define QUERY_PORT_MAX_VL_OFFSET 0x0b
1205 #define QUERY_PORT_MAC_OFFSET 0x10
1206 #define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
1207 #define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
1208 #define QUERY_PORT_TRANS_CODE_OFFSET 0x20
1209
1210 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0, MLX4_CMD_QUERY_PORT,
1211 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1212 if (err)
1213 goto out;
1214
1215 MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1216 port_cap->link_state = (field & 0x80) >> 7;
1217 port_cap->supported_port_types = field & 3;
1218 port_cap->suggested_type = (field >> 3) & 1;
1219 port_cap->default_sense = (field >> 4) & 1;
1220 port_cap->dmfs_optimized_state = (field >> 5) & 1;
1221 MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
1222 port_cap->ib_mtu = field & 0xf;
1223 MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
1224 port_cap->max_port_width = field & 0xf;
1225 MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
1226 port_cap->max_gids = 1 << (field >> 4);
1227 port_cap->max_pkeys = 1 << (field & 0xf);
1228 MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
1229 port_cap->max_vl = field & 0xf;
1230 port_cap->max_tc_eth = field >> 4;
1231 MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
1232 port_cap->log_max_macs = field & 0xf;
1233 port_cap->log_max_vlans = field >> 4;
1234 MLX4_GET(port_cap->eth_mtu, outbox, QUERY_PORT_ETH_MTU_OFFSET);
1235 MLX4_GET(port_cap->def_mac, outbox, QUERY_PORT_MAC_OFFSET);
1236 MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
1237 port_cap->trans_type = field32 >> 24;
1238 port_cap->vendor_oui = field32 & 0xffffff;
1239 MLX4_GET(port_cap->wavelength, outbox, QUERY_PORT_WAVELENGTH_OFFSET);
1240 MLX4_GET(port_cap->trans_code, outbox, QUERY_PORT_TRANS_CODE_OFFSET);
1241 }
1242
1243 out:
1244 mlx4_free_cmd_mailbox(dev, mailbox);
1245 return err;
1246 }
1247
1248 #define DEV_CAP_EXT_2_FLAG_PFC_COUNTERS (1 << 28)
1249 #define DEV_CAP_EXT_2_FLAG_VLAN_CONTROL (1 << 26)
1250 #define DEV_CAP_EXT_2_FLAG_80_VFS (1 << 21)
1251 #define DEV_CAP_EXT_2_FLAG_FSM (1 << 20)
1252
1253 int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
1254 struct mlx4_vhcr *vhcr,
1255 struct mlx4_cmd_mailbox *inbox,
1256 struct mlx4_cmd_mailbox *outbox,
1257 struct mlx4_cmd_info *cmd)
1258 {
1259 u64 flags;
1260 int err = 0;
1261 u8 field;
1262 u16 field16;
1263 u32 bmme_flags, field32;
1264 int real_port;
1265 int slave_port;
1266 int first_port;
1267 struct mlx4_active_ports actv_ports;
1268
1269 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1270 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1271 if (err)
1272 return err;
1273
1274 disable_unsupported_roce_caps(outbox->buf);
1275 /* add port mng change event capability and disable mw type 1
1276 * unconditionally to slaves
1277 */
1278 MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1279 flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
1280 flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
1281 actv_ports = mlx4_get_active_ports(dev, slave);
1282 first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
1283 for (slave_port = 0, real_port = first_port;
1284 real_port < first_port +
1285 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
1286 ++real_port, ++slave_port) {
1287 if (flags & (MLX4_DEV_CAP_FLAG_WOL_PORT1 << real_port))
1288 flags |= MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port;
1289 else
1290 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1291 }
1292 for (; slave_port < dev->caps.num_ports; ++slave_port)
1293 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1294
1295 /* Not exposing RSS IP fragments to guests */
1296 flags &= ~MLX4_DEV_CAP_FLAG_RSS_IP_FRAG;
1297 MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1298
1299 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VL_PORT_OFFSET);
1300 field &= ~0x0F;
1301 field |= bitmap_weight(actv_ports.ports, dev->caps.num_ports) & 0x0F;
1302 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VL_PORT_OFFSET);
1303
1304 /* For guests, disable timestamp */
1305 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1306 field &= 0x7f;
1307 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1308
1309 /* For guests, disable vxlan tunneling and QoS support */
1310 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VXLAN);
1311 field &= 0xd7;
1312 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VXLAN);
1313
1314 /* For guests, disable port BEACON */
1315 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1316 field &= 0x7f;
1317 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1318
1319 /* For guests, report Blueflame disabled */
1320 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
1321 field &= 0x7f;
1322 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
1323
1324 /* For guests, disable mw type 2 and port remap*/
1325 MLX4_GET(bmme_flags, outbox->buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1326 bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN;
1327 bmme_flags &= ~MLX4_FLAG_PORT_REMAP;
1328 MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1329
1330 /* turn off device-managed steering capability if not enabled */
1331 if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
1332 MLX4_GET(field, outbox->buf,
1333 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1334 field &= 0x7f;
1335 MLX4_PUT(outbox->buf, field,
1336 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1337 }
1338
1339 /* turn off ipoib managed steering for guests */
1340 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1341 field &= ~0x80;
1342 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1343
1344 /* turn off host side virt features (VST, FSM, etc) for guests */
1345 MLX4_GET(field32, outbox->buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1346 field32 &= ~(DEV_CAP_EXT_2_FLAG_VLAN_CONTROL | DEV_CAP_EXT_2_FLAG_80_VFS |
1347 DEV_CAP_EXT_2_FLAG_FSM | DEV_CAP_EXT_2_FLAG_PFC_COUNTERS);
1348 MLX4_PUT(outbox->buf, field32, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1349
1350 /* turn off QCN for guests */
1351 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1352 field &= 0xfe;
1353 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1354
1355 /* turn off QP max-rate limiting for guests */
1356 field16 = 0;
1357 MLX4_PUT(outbox->buf, field16, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
1358
1359 /* turn off QoS per VF support for guests */
1360 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1361 field &= 0xef;
1362 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1363
1364 /* turn off ignore FCS feature for guests */
1365 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1366 field &= 0xfb;
1367 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1368
1369 return 0;
1370 }
1371
1372 static void disable_unsupported_roce_caps(void *buf)
1373 {
1374 u32 flags;
1375
1376 MLX4_GET(flags, buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1377 flags &= ~(1UL << 31);
1378 MLX4_PUT(buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1379 MLX4_GET(flags, buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1380 flags &= ~(1UL << 24);
1381 MLX4_PUT(buf, flags, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1382 MLX4_GET(flags, buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1383 flags &= ~(MLX4_FLAG_ROCE_V1_V2);
1384 MLX4_PUT(buf, flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1385 }
1386
1387 int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
1388 struct mlx4_vhcr *vhcr,
1389 struct mlx4_cmd_mailbox *inbox,
1390 struct mlx4_cmd_mailbox *outbox,
1391 struct mlx4_cmd_info *cmd)
1392 {
1393 struct mlx4_priv *priv = mlx4_priv(dev);
1394 u64 def_mac;
1395 u8 port_type;
1396 u16 short_field;
1397 int err;
1398 int admin_link_state;
1399 int port = mlx4_slave_convert_port(dev, slave,
1400 vhcr->in_modifier & 0xFF);
1401
1402 #define MLX4_VF_PORT_NO_LINK_SENSE_MASK 0xE0
1403 #define MLX4_PORT_LINK_UP_MASK 0x80
1404 #define QUERY_PORT_CUR_MAX_PKEY_OFFSET 0x0c
1405 #define QUERY_PORT_CUR_MAX_GID_OFFSET 0x0e
1406
1407 if (port < 0)
1408 return -EINVAL;
1409
1410 /* Protect against untrusted guests: enforce that this is the
1411 * QUERY_PORT general query.
1412 */
1413 if (vhcr->op_modifier || vhcr->in_modifier & ~0xFF)
1414 return -EINVAL;
1415
1416 vhcr->in_modifier = port;
1417
1418 err = mlx4_cmd_box(dev, 0, outbox->dma, vhcr->in_modifier, 0,
1419 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1420 MLX4_CMD_NATIVE);
1421
1422 if (!err && dev->caps.function != slave) {
1423 def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac;
1424 MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET);
1425
1426 /* get port type - currently only eth is enabled */
1427 MLX4_GET(port_type, outbox->buf,
1428 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1429
1430 /* No link sensing allowed */
1431 port_type &= MLX4_VF_PORT_NO_LINK_SENSE_MASK;
1432 /* set port type to currently operating port type */
1433 port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
1434
1435 admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
1436 if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
1437 port_type |= MLX4_PORT_LINK_UP_MASK;
1438 else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
1439 port_type &= ~MLX4_PORT_LINK_UP_MASK;
1440 else if (IFLA_VF_LINK_STATE_AUTO == admin_link_state && mlx4_is_bonded(dev)) {
1441 int other_port = (port == 1) ? 2 : 1;
1442 struct mlx4_port_cap port_cap;
1443
1444 err = mlx4_QUERY_PORT(dev, other_port, &port_cap);
1445 if (err)
1446 goto out;
1447 port_type |= (port_cap.link_state << 7);
1448 }
1449
1450 MLX4_PUT(outbox->buf, port_type,
1451 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1452
1453 if (dev->caps.port_type[vhcr->in_modifier] == MLX4_PORT_TYPE_ETH)
1454 short_field = mlx4_get_slave_num_gids(dev, slave, port);
1455 else
1456 short_field = 1; /* slave max gids */
1457 MLX4_PUT(outbox->buf, short_field,
1458 QUERY_PORT_CUR_MAX_GID_OFFSET);
1459
1460 short_field = dev->caps.pkey_table_len[vhcr->in_modifier];
1461 MLX4_PUT(outbox->buf, short_field,
1462 QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1463 }
1464 out:
1465 return err;
1466 }
1467
1468 int mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev *dev, u8 port,
1469 int *gid_tbl_len, int *pkey_tbl_len)
1470 {
1471 struct mlx4_cmd_mailbox *mailbox;
1472 u32 *outbox;
1473 u16 field;
1474 int err;
1475
1476 mailbox = mlx4_alloc_cmd_mailbox(dev);
1477 if (IS_ERR(mailbox))
1478 return PTR_ERR(mailbox);
1479
1480 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0,
1481 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1482 MLX4_CMD_WRAPPED);
1483 if (err)
1484 goto out;
1485
1486 outbox = mailbox->buf;
1487
1488 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_GID_OFFSET);
1489 *gid_tbl_len = field;
1490
1491 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1492 *pkey_tbl_len = field;
1493
1494 out:
1495 mlx4_free_cmd_mailbox(dev, mailbox);
1496 return err;
1497 }
1498 EXPORT_SYMBOL(mlx4_get_slave_pkey_gid_tbl_len);
1499
1500 int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
1501 {
1502 struct mlx4_cmd_mailbox *mailbox;
1503 struct mlx4_icm_iter iter;
1504 __be64 *pages;
1505 int lg;
1506 int nent = 0;
1507 int i;
1508 int err = 0;
1509 int ts = 0, tc = 0;
1510
1511 mailbox = mlx4_alloc_cmd_mailbox(dev);
1512 if (IS_ERR(mailbox))
1513 return PTR_ERR(mailbox);
1514 pages = mailbox->buf;
1515
1516 for (mlx4_icm_first(icm, &iter);
1517 !mlx4_icm_last(&iter);
1518 mlx4_icm_next(&iter)) {
1519 /*
1520 * We have to pass pages that are aligned to their
1521 * size, so find the least significant 1 in the
1522 * address or size and use that as our log2 size.
1523 */
1524 lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
1525 if (lg < MLX4_ICM_PAGE_SHIFT) {
1526 mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx)\n",
1527 MLX4_ICM_PAGE_SIZE,
1528 (unsigned long long) mlx4_icm_addr(&iter),
1529 mlx4_icm_size(&iter));
1530 err = -EINVAL;
1531 goto out;
1532 }
1533
1534 for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
1535 if (virt != -1) {
1536 pages[nent * 2] = cpu_to_be64(virt);
1537 virt += 1 << lg;
1538 }
1539
1540 pages[nent * 2 + 1] =
1541 cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
1542 (lg - MLX4_ICM_PAGE_SHIFT));
1543 ts += 1 << (lg - 10);
1544 ++tc;
1545
1546 if (++nent == MLX4_MAILBOX_SIZE / 16) {
1547 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1548 MLX4_CMD_TIME_CLASS_B,
1549 MLX4_CMD_NATIVE);
1550 if (err)
1551 goto out;
1552 nent = 0;
1553 }
1554 }
1555 }
1556
1557 if (nent)
1558 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1559 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1560 if (err)
1561 goto out;
1562
1563 switch (op) {
1564 case MLX4_CMD_MAP_FA:
1565 mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW\n", tc, ts);
1566 break;
1567 case MLX4_CMD_MAP_ICM_AUX:
1568 mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux\n", tc, ts);
1569 break;
1570 case MLX4_CMD_MAP_ICM:
1571 mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM\n",
1572 tc, ts, (unsigned long long) virt - (ts << 10));
1573 break;
1574 }
1575
1576 out:
1577 mlx4_free_cmd_mailbox(dev, mailbox);
1578 return err;
1579 }
1580
1581 int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
1582 {
1583 return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
1584 }
1585
1586 int mlx4_UNMAP_FA(struct mlx4_dev *dev)
1587 {
1588 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA,
1589 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1590 }
1591
1592
1593 int mlx4_RUN_FW(struct mlx4_dev *dev)
1594 {
1595 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW,
1596 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1597 }
1598
1599 int mlx4_QUERY_FW(struct mlx4_dev *dev)
1600 {
1601 struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
1602 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
1603 struct mlx4_cmd_mailbox *mailbox;
1604 u32 *outbox;
1605 int err = 0;
1606 u64 fw_ver;
1607 u16 cmd_if_rev;
1608 u8 lg;
1609
1610 #define QUERY_FW_OUT_SIZE 0x100
1611 #define QUERY_FW_VER_OFFSET 0x00
1612 #define QUERY_FW_PPF_ID 0x09
1613 #define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
1614 #define QUERY_FW_MAX_CMD_OFFSET 0x0f
1615 #define QUERY_FW_ERR_START_OFFSET 0x30
1616 #define QUERY_FW_ERR_SIZE_OFFSET 0x38
1617 #define QUERY_FW_ERR_BAR_OFFSET 0x3c
1618
1619 #define QUERY_FW_SIZE_OFFSET 0x00
1620 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
1621 #define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
1622
1623 #define QUERY_FW_COMM_BASE_OFFSET 0x40
1624 #define QUERY_FW_COMM_BAR_OFFSET 0x48
1625
1626 #define QUERY_FW_CLOCK_OFFSET 0x50
1627 #define QUERY_FW_CLOCK_BAR 0x58
1628
1629 mailbox = mlx4_alloc_cmd_mailbox(dev);
1630 if (IS_ERR(mailbox))
1631 return PTR_ERR(mailbox);
1632 outbox = mailbox->buf;
1633
1634 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1635 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1636 if (err)
1637 goto out;
1638
1639 MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
1640 /*
1641 * FW subminor version is at more significant bits than minor
1642 * version, so swap here.
1643 */
1644 dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
1645 ((fw_ver & 0xffff0000ull) >> 16) |
1646 ((fw_ver & 0x0000ffffull) << 16);
1647
1648 MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
1649 dev->caps.function = lg;
1650
1651 if (mlx4_is_slave(dev))
1652 goto out;
1653
1654
1655 MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
1656 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
1657 cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
1658 mlx4_err(dev, "Installed FW has unsupported command interface revision %d\n",
1659 cmd_if_rev);
1660 mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
1661 (int) (dev->caps.fw_ver >> 32),
1662 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1663 (int) dev->caps.fw_ver & 0xffff);
1664 mlx4_err(dev, "This driver version supports only revisions %d to %d\n",
1665 MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
1666 err = -ENODEV;
1667 goto out;
1668 }
1669
1670 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
1671 dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
1672
1673 MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
1674 cmd->max_cmds = 1 << lg;
1675
1676 mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
1677 (int) (dev->caps.fw_ver >> 32),
1678 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1679 (int) dev->caps.fw_ver & 0xffff,
1680 cmd_if_rev, cmd->max_cmds);
1681
1682 MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
1683 MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
1684 MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
1685 fw->catas_bar = (fw->catas_bar >> 6) * 2;
1686
1687 mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
1688 (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
1689
1690 MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
1691 MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
1692 MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
1693 fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
1694
1695 MLX4_GET(fw->comm_base, outbox, QUERY_FW_COMM_BASE_OFFSET);
1696 MLX4_GET(fw->comm_bar, outbox, QUERY_FW_COMM_BAR_OFFSET);
1697 fw->comm_bar = (fw->comm_bar >> 6) * 2;
1698 mlx4_dbg(dev, "Communication vector bar:%d offset:0x%llx\n",
1699 fw->comm_bar, fw->comm_base);
1700 mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
1701
1702 MLX4_GET(fw->clock_offset, outbox, QUERY_FW_CLOCK_OFFSET);
1703 MLX4_GET(fw->clock_bar, outbox, QUERY_FW_CLOCK_BAR);
1704 fw->clock_bar = (fw->clock_bar >> 6) * 2;
1705 mlx4_dbg(dev, "Internal clock bar:%d offset:0x%llx\n",
1706 fw->clock_bar, fw->clock_offset);
1707
1708 /*
1709 * Round up number of system pages needed in case
1710 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
1711 */
1712 fw->fw_pages =
1713 ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
1714 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
1715
1716 mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
1717 (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
1718
1719 out:
1720 mlx4_free_cmd_mailbox(dev, mailbox);
1721 return err;
1722 }
1723
1724 int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
1725 struct mlx4_vhcr *vhcr,
1726 struct mlx4_cmd_mailbox *inbox,
1727 struct mlx4_cmd_mailbox *outbox,
1728 struct mlx4_cmd_info *cmd)
1729 {
1730 u8 *outbuf;
1731 int err;
1732
1733 outbuf = outbox->buf;
1734 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1735 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1736 if (err)
1737 return err;
1738
1739 /* for slaves, set pci PPF ID to invalid and zero out everything
1740 * else except FW version */
1741 outbuf[0] = outbuf[1] = 0;
1742 memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
1743 outbuf[QUERY_FW_PPF_ID] = MLX4_INVALID_SLAVE_ID;
1744
1745 return 0;
1746 }
1747
1748 static void get_board_id(void *vsd, char *board_id)
1749 {
1750 int i;
1751
1752 #define VSD_OFFSET_SIG1 0x00
1753 #define VSD_OFFSET_SIG2 0xde
1754 #define VSD_OFFSET_MLX_BOARD_ID 0xd0
1755 #define VSD_OFFSET_TS_BOARD_ID 0x20
1756
1757 #define VSD_SIGNATURE_TOPSPIN 0x5ad
1758
1759 memset(board_id, 0, MLX4_BOARD_ID_LEN);
1760
1761 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1762 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1763 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
1764 } else {
1765 /*
1766 * The board ID is a string but the firmware byte
1767 * swaps each 4-byte word before passing it back to
1768 * us. Therefore we need to swab it before printing.
1769 */
1770 u32 *bid_u32 = (u32 *)board_id;
1771
1772 for (i = 0; i < 4; ++i) {
1773 u32 *addr;
1774 u32 val;
1775
1776 addr = (u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4);
1777 val = get_unaligned(addr);
1778 val = swab32(val);
1779 put_unaligned(val, &bid_u32[i]);
1780 }
1781 }
1782 }
1783
1784 int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
1785 {
1786 struct mlx4_cmd_mailbox *mailbox;
1787 u32 *outbox;
1788 int err;
1789
1790 #define QUERY_ADAPTER_OUT_SIZE 0x100
1791 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
1792 #define QUERY_ADAPTER_VSD_OFFSET 0x20
1793
1794 mailbox = mlx4_alloc_cmd_mailbox(dev);
1795 if (IS_ERR(mailbox))
1796 return PTR_ERR(mailbox);
1797 outbox = mailbox->buf;
1798
1799 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
1800 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1801 if (err)
1802 goto out;
1803
1804 MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1805
1806 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1807 adapter->board_id);
1808
1809 out:
1810 mlx4_free_cmd_mailbox(dev, mailbox);
1811 return err;
1812 }
1813
1814 int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
1815 {
1816 struct mlx4_cmd_mailbox *mailbox;
1817 __be32 *inbox;
1818 int err;
1819 static const u8 a0_dmfs_hw_steering[] = {
1820 [MLX4_STEERING_DMFS_A0_DEFAULT] = 0,
1821 [MLX4_STEERING_DMFS_A0_DYNAMIC] = 1,
1822 [MLX4_STEERING_DMFS_A0_STATIC] = 2,
1823 [MLX4_STEERING_DMFS_A0_DISABLE] = 3
1824 };
1825
1826 #define INIT_HCA_IN_SIZE 0x200
1827 #define INIT_HCA_VERSION_OFFSET 0x000
1828 #define INIT_HCA_VERSION 2
1829 #define INIT_HCA_VXLAN_OFFSET 0x0c
1830 #define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
1831 #define INIT_HCA_FLAGS_OFFSET 0x014
1832 #define INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET 0x018
1833 #define INIT_HCA_QPC_OFFSET 0x020
1834 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1835 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1836 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1837 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1838 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1839 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1840 #define INIT_HCA_EQE_CQE_OFFSETS (INIT_HCA_QPC_OFFSET + 0x38)
1841 #define INIT_HCA_EQE_CQE_STRIDE_OFFSET (INIT_HCA_QPC_OFFSET + 0x3b)
1842 #define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1843 #define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1844 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1845 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1846 #define INIT_HCA_NUM_SYS_EQS_OFFSET (INIT_HCA_QPC_OFFSET + 0x6a)
1847 #define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1848 #define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
1849 #define INIT_HCA_MCAST_OFFSET 0x0c0
1850 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1851 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1852 #define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
1853 #define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
1854 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1855 #define INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN 0x6
1856 #define INIT_HCA_FS_PARAM_OFFSET 0x1d0
1857 #define INIT_HCA_FS_BASE_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x00)
1858 #define INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x12)
1859 #define INIT_HCA_FS_A0_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x18)
1860 #define INIT_HCA_FS_LOG_TABLE_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x1b)
1861 #define INIT_HCA_FS_ETH_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x21)
1862 #define INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x22)
1863 #define INIT_HCA_FS_IB_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x25)
1864 #define INIT_HCA_FS_IB_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x26)
1865 #define INIT_HCA_TPT_OFFSET 0x0f0
1866 #define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1867 #define INIT_HCA_TPT_MW_OFFSET (INIT_HCA_TPT_OFFSET + 0x08)
1868 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1869 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1870 #define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
1871 #define INIT_HCA_UAR_OFFSET 0x120
1872 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1873 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1874
1875 mailbox = mlx4_alloc_cmd_mailbox(dev);
1876 if (IS_ERR(mailbox))
1877 return PTR_ERR(mailbox);
1878 inbox = mailbox->buf;
1879
1880 *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
1881
1882 *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
1883 ((ilog2(cache_line_size()) - 4) << 5) | (1 << 4);
1884
1885 #if defined(__LITTLE_ENDIAN)
1886 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1887 #elif defined(__BIG_ENDIAN)
1888 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1889 #else
1890 #error Host endianness not defined
1891 #endif
1892 /* Check port for UD address vector: */
1893 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1894
1895 /* Enable IPoIB checksumming if we can: */
1896 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
1897 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
1898
1899 /* Enable QoS support if module parameter set */
1900 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG && enable_qos)
1901 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
1902
1903 /* enable counters */
1904 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1905 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
1906
1907 /* Enable RSS spread to fragmented IP packets when supported */
1908 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_RSS_IP_FRAG)
1909 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 13);
1910
1911 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
1912 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_EQE) {
1913 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 29);
1914 dev->caps.eqe_size = 64;
1915 dev->caps.eqe_factor = 1;
1916 } else {
1917 dev->caps.eqe_size = 32;
1918 dev->caps.eqe_factor = 0;
1919 }
1920
1921 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_CQE) {
1922 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 30);
1923 dev->caps.cqe_size = 64;
1924 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1925 } else {
1926 dev->caps.cqe_size = 32;
1927 }
1928
1929 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
1930 if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) &&
1931 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) {
1932 dev->caps.eqe_size = cache_line_size();
1933 dev->caps.cqe_size = cache_line_size();
1934 dev->caps.eqe_factor = 0;
1935 MLX4_PUT(inbox, (u8)((ilog2(dev->caps.eqe_size) - 5) << 4 |
1936 (ilog2(dev->caps.eqe_size) - 5)),
1937 INIT_HCA_EQE_CQE_STRIDE_OFFSET);
1938
1939 /* User still need to know to support CQE > 32B */
1940 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1941 }
1942
1943 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT)
1944 *(inbox + INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET / 4) |= cpu_to_be32(1 << 31);
1945
1946 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1947
1948 MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1949 MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1950 MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1951 MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1952 MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1953 MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1954 MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
1955 MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
1956 MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1957 MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1958 MLX4_PUT(inbox, param->num_sys_eqs, INIT_HCA_NUM_SYS_EQS_OFFSET);
1959 MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
1960 MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
1961
1962 /* steering attributes */
1963 if (dev->caps.steering_mode ==
1964 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1965 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |=
1966 cpu_to_be32(1 <<
1967 INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN);
1968
1969 MLX4_PUT(inbox, param->mc_base, INIT_HCA_FS_BASE_OFFSET);
1970 MLX4_PUT(inbox, param->log_mc_entry_sz,
1971 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
1972 MLX4_PUT(inbox, param->log_mc_table_sz,
1973 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
1974 /* Enable Ethernet flow steering
1975 * with udp unicast and tcp unicast
1976 */
1977 if (dev->caps.dmfs_high_steer_mode !=
1978 MLX4_STEERING_DMFS_A0_STATIC)
1979 MLX4_PUT(inbox,
1980 (u8)(MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1981 INIT_HCA_FS_ETH_BITS_OFFSET);
1982 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1983 INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET);
1984 /* Enable IPoIB flow steering
1985 * with udp unicast and tcp unicast
1986 */
1987 MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
1988 INIT_HCA_FS_IB_BITS_OFFSET);
1989 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
1990 INIT_HCA_FS_IB_NUM_ADDRS_OFFSET);
1991
1992 if (dev->caps.dmfs_high_steer_mode !=
1993 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1994 MLX4_PUT(inbox,
1995 ((u8)(a0_dmfs_hw_steering[dev->caps.dmfs_high_steer_mode]
1996 << 6)),
1997 INIT_HCA_FS_A0_OFFSET);
1998 } else {
1999 MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
2000 MLX4_PUT(inbox, param->log_mc_entry_sz,
2001 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
2002 MLX4_PUT(inbox, param->log_mc_hash_sz,
2003 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
2004 MLX4_PUT(inbox, param->log_mc_table_sz,
2005 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
2006 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0)
2007 MLX4_PUT(inbox, (u8) (1 << 3),
2008 INIT_HCA_UC_STEERING_OFFSET);
2009 }
2010
2011 /* TPT attributes */
2012
2013 MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
2014 MLX4_PUT(inbox, param->mw_enabled, INIT_HCA_TPT_MW_OFFSET);
2015 MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
2016 MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
2017 MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
2018
2019 /* UAR attributes */
2020
2021 MLX4_PUT(inbox, param->uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
2022 MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
2023
2024 /* set parser VXLAN attributes */
2025 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) {
2026 u8 parser_params = 0;
2027 MLX4_PUT(inbox, parser_params, INIT_HCA_VXLAN_OFFSET);
2028 }
2029
2030 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA,
2031 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
2032
2033 if (err)
2034 mlx4_err(dev, "INIT_HCA returns %d\n", err);
2035
2036 mlx4_free_cmd_mailbox(dev, mailbox);
2037 return err;
2038 }
2039
2040 int mlx4_QUERY_HCA(struct mlx4_dev *dev,
2041 struct mlx4_init_hca_param *param)
2042 {
2043 struct mlx4_cmd_mailbox *mailbox;
2044 __be32 *outbox;
2045 u32 dword_field;
2046 int err;
2047 u8 byte_field;
2048 static const u8 a0_dmfs_query_hw_steering[] = {
2049 [0] = MLX4_STEERING_DMFS_A0_DEFAULT,
2050 [1] = MLX4_STEERING_DMFS_A0_DYNAMIC,
2051 [2] = MLX4_STEERING_DMFS_A0_STATIC,
2052 [3] = MLX4_STEERING_DMFS_A0_DISABLE
2053 };
2054
2055 #define QUERY_HCA_GLOBAL_CAPS_OFFSET 0x04
2056 #define QUERY_HCA_CORE_CLOCK_OFFSET 0x0c
2057
2058 mailbox = mlx4_alloc_cmd_mailbox(dev);
2059 if (IS_ERR(mailbox))
2060 return PTR_ERR(mailbox);
2061 outbox = mailbox->buf;
2062
2063 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2064 MLX4_CMD_QUERY_HCA,
2065 MLX4_CMD_TIME_CLASS_B,
2066 !mlx4_is_slave(dev));
2067 if (err)
2068 goto out;
2069
2070 MLX4_GET(param->global_caps, outbox, QUERY_HCA_GLOBAL_CAPS_OFFSET);
2071 MLX4_GET(param->hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
2072
2073 /* QPC/EEC/CQC/EQC/RDMARC attributes */
2074
2075 MLX4_GET(param->qpc_base, outbox, INIT_HCA_QPC_BASE_OFFSET);
2076 MLX4_GET(param->log_num_qps, outbox, INIT_HCA_LOG_QP_OFFSET);
2077 MLX4_GET(param->srqc_base, outbox, INIT_HCA_SRQC_BASE_OFFSET);
2078 MLX4_GET(param->log_num_srqs, outbox, INIT_HCA_LOG_SRQ_OFFSET);
2079 MLX4_GET(param->cqc_base, outbox, INIT_HCA_CQC_BASE_OFFSET);
2080 MLX4_GET(param->log_num_cqs, outbox, INIT_HCA_LOG_CQ_OFFSET);
2081 MLX4_GET(param->altc_base, outbox, INIT_HCA_ALTC_BASE_OFFSET);
2082 MLX4_GET(param->auxc_base, outbox, INIT_HCA_AUXC_BASE_OFFSET);
2083 MLX4_GET(param->eqc_base, outbox, INIT_HCA_EQC_BASE_OFFSET);
2084 MLX4_GET(param->log_num_eqs, outbox, INIT_HCA_LOG_EQ_OFFSET);
2085 MLX4_GET(param->num_sys_eqs, outbox, INIT_HCA_NUM_SYS_EQS_OFFSET);
2086 MLX4_GET(param->rdmarc_base, outbox, INIT_HCA_RDMARC_BASE_OFFSET);
2087 MLX4_GET(param->log_rd_per_qp, outbox, INIT_HCA_LOG_RD_OFFSET);
2088
2089 MLX4_GET(dword_field, outbox, INIT_HCA_FLAGS_OFFSET);
2090 if (dword_field & (1 << INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN)) {
2091 param->steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
2092 } else {
2093 MLX4_GET(byte_field, outbox, INIT_HCA_UC_STEERING_OFFSET);
2094 if (byte_field & 0x8)
2095 param->steering_mode = MLX4_STEERING_MODE_B0;
2096 else
2097 param->steering_mode = MLX4_STEERING_MODE_A0;
2098 }
2099
2100 if (dword_field & (1 << 13))
2101 param->rss_ip_frags = 1;
2102
2103 /* steering attributes */
2104 if (param->steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2105 MLX4_GET(param->mc_base, outbox, INIT_HCA_FS_BASE_OFFSET);
2106 MLX4_GET(param->log_mc_entry_sz, outbox,
2107 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
2108 MLX4_GET(param->log_mc_table_sz, outbox,
2109 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
2110 MLX4_GET(byte_field, outbox,
2111 INIT_HCA_FS_A0_OFFSET);
2112 param->dmfs_high_steer_mode =
2113 a0_dmfs_query_hw_steering[(byte_field >> 6) & 3];
2114 } else {
2115 MLX4_GET(param->mc_base, outbox, INIT_HCA_MC_BASE_OFFSET);
2116 MLX4_GET(param->log_mc_entry_sz, outbox,
2117 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
2118 MLX4_GET(param->log_mc_hash_sz, outbox,
2119 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
2120 MLX4_GET(param->log_mc_table_sz, outbox,
2121 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
2122 }
2123
2124 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
2125 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_OFFSETS);
2126 if (byte_field & 0x20) /* 64-bytes eqe enabled */
2127 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_EQE_ENABLED;
2128 if (byte_field & 0x40) /* 64-bytes cqe enabled */
2129 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_CQE_ENABLED;
2130
2131 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
2132 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_STRIDE_OFFSET);
2133 if (byte_field) {
2134 param->dev_cap_enabled |= MLX4_DEV_CAP_EQE_STRIDE_ENABLED;
2135 param->dev_cap_enabled |= MLX4_DEV_CAP_CQE_STRIDE_ENABLED;
2136 param->cqe_size = 1 << ((byte_field &
2137 MLX4_CQE_SIZE_MASK_STRIDE) + 5);
2138 param->eqe_size = 1 << (((byte_field &
2139 MLX4_EQE_SIZE_MASK_STRIDE) >> 4) + 5);
2140 }
2141
2142 /* TPT attributes */
2143
2144 MLX4_GET(param->dmpt_base, outbox, INIT_HCA_DMPT_BASE_OFFSET);
2145 MLX4_GET(param->mw_enabled, outbox, INIT_HCA_TPT_MW_OFFSET);
2146 MLX4_GET(param->log_mpt_sz, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
2147 MLX4_GET(param->mtt_base, outbox, INIT_HCA_MTT_BASE_OFFSET);
2148 MLX4_GET(param->cmpt_base, outbox, INIT_HCA_CMPT_BASE_OFFSET);
2149
2150 /* UAR attributes */
2151
2152 MLX4_GET(param->uar_page_sz, outbox, INIT_HCA_UAR_PAGE_SZ_OFFSET);
2153 MLX4_GET(param->log_uar_sz, outbox, INIT_HCA_LOG_UAR_SZ_OFFSET);
2154
2155 /* phv_check enable */
2156 MLX4_GET(byte_field, outbox, INIT_HCA_CACHELINE_SZ_OFFSET);
2157 if (byte_field & 0x2)
2158 param->phv_check_en = 1;
2159 out:
2160 mlx4_free_cmd_mailbox(dev, mailbox);
2161
2162 return err;
2163 }
2164
2165 static int mlx4_hca_core_clock_update(struct mlx4_dev *dev)
2166 {
2167 struct mlx4_cmd_mailbox *mailbox;
2168 __be32 *outbox;
2169 int err;
2170
2171 mailbox = mlx4_alloc_cmd_mailbox(dev);
2172 if (IS_ERR(mailbox)) {
2173 mlx4_warn(dev, "hca_core_clock mailbox allocation failed\n");
2174 return PTR_ERR(mailbox);
2175 }
2176 outbox = mailbox->buf;
2177
2178 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2179 MLX4_CMD_QUERY_HCA,
2180 MLX4_CMD_TIME_CLASS_B,
2181 !mlx4_is_slave(dev));
2182 if (err) {
2183 mlx4_warn(dev, "hca_core_clock update failed\n");
2184 goto out;
2185 }
2186
2187 MLX4_GET(dev->caps.hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
2188
2189 out:
2190 mlx4_free_cmd_mailbox(dev, mailbox);
2191
2192 return err;
2193 }
2194
2195 /* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
2196 * and real QP0 are active, so that the paravirtualized QP0 is ready
2197 * to operate */
2198 static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
2199 {
2200 struct mlx4_priv *priv = mlx4_priv(dev);
2201 /* irrelevant if not infiniband */
2202 if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
2203 priv->mfunc.master.qp0_state[port].qp0_active)
2204 return 1;
2205 return 0;
2206 }
2207
2208 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
2209 struct mlx4_vhcr *vhcr,
2210 struct mlx4_cmd_mailbox *inbox,
2211 struct mlx4_cmd_mailbox *outbox,
2212 struct mlx4_cmd_info *cmd)
2213 {
2214 struct mlx4_priv *priv = mlx4_priv(dev);
2215 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2216 int err;
2217
2218 if (port < 0)
2219 return -EINVAL;
2220
2221 if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
2222 return 0;
2223
2224 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2225 /* Enable port only if it was previously disabled */
2226 if (!priv->mfunc.master.init_port_ref[port]) {
2227 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2228 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2229 if (err)
2230 return err;
2231 }
2232 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2233 } else {
2234 if (slave == mlx4_master_func_num(dev)) {
2235 if (check_qp0_state(dev, slave, port) &&
2236 !priv->mfunc.master.qp0_state[port].port_active) {
2237 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2238 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2239 if (err)
2240 return err;
2241 priv->mfunc.master.qp0_state[port].port_active = 1;
2242 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2243 }
2244 } else
2245 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2246 }
2247 ++priv->mfunc.master.init_port_ref[port];
2248 return 0;
2249 }
2250
2251 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
2252 {
2253 struct mlx4_cmd_mailbox *mailbox;
2254 u32 *inbox;
2255 int err;
2256 u32 flags;
2257 u16 field;
2258
2259 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
2260 #define INIT_PORT_IN_SIZE 256
2261 #define INIT_PORT_FLAGS_OFFSET 0x00
2262 #define INIT_PORT_FLAG_SIG (1 << 18)
2263 #define INIT_PORT_FLAG_NG (1 << 17)
2264 #define INIT_PORT_FLAG_G0 (1 << 16)
2265 #define INIT_PORT_VL_SHIFT 4
2266 #define INIT_PORT_PORT_WIDTH_SHIFT 8
2267 #define INIT_PORT_MTU_OFFSET 0x04
2268 #define INIT_PORT_MAX_GID_OFFSET 0x06
2269 #define INIT_PORT_MAX_PKEY_OFFSET 0x0a
2270 #define INIT_PORT_GUID0_OFFSET 0x10
2271 #define INIT_PORT_NODE_GUID_OFFSET 0x18
2272 #define INIT_PORT_SI_GUID_OFFSET 0x20
2273
2274 mailbox = mlx4_alloc_cmd_mailbox(dev);
2275 if (IS_ERR(mailbox))
2276 return PTR_ERR(mailbox);
2277 inbox = mailbox->buf;
2278
2279 flags = 0;
2280 flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
2281 flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
2282 MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
2283
2284 field = 128 << dev->caps.ib_mtu_cap[port];
2285 MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
2286 field = dev->caps.gid_table_len[port];
2287 MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
2288 field = dev->caps.pkey_table_len[port];
2289 MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
2290
2291 err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
2292 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2293
2294 mlx4_free_cmd_mailbox(dev, mailbox);
2295 } else
2296 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2297 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2298
2299 if (!err)
2300 mlx4_hca_core_clock_update(dev);
2301
2302 return err;
2303 }
2304 EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
2305
2306 int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
2307 struct mlx4_vhcr *vhcr,
2308 struct mlx4_cmd_mailbox *inbox,
2309 struct mlx4_cmd_mailbox *outbox,
2310 struct mlx4_cmd_info *cmd)
2311 {
2312 struct mlx4_priv *priv = mlx4_priv(dev);
2313 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2314 int err;
2315
2316 if (port < 0)
2317 return -EINVAL;
2318
2319 if (!(priv->mfunc.master.slave_state[slave].init_port_mask &
2320 (1 << port)))
2321 return 0;
2322
2323 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2324 if (priv->mfunc.master.init_port_ref[port] == 1) {
2325 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2326 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2327 if (err)
2328 return err;
2329 }
2330 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2331 } else {
2332 /* infiniband port */
2333 if (slave == mlx4_master_func_num(dev)) {
2334 if (!priv->mfunc.master.qp0_state[port].qp0_active &&
2335 priv->mfunc.master.qp0_state[port].port_active) {
2336 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2337 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2338 if (err)
2339 return err;
2340 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2341 priv->mfunc.master.qp0_state[port].port_active = 0;
2342 }
2343 } else
2344 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2345 }
2346 --priv->mfunc.master.init_port_ref[port];
2347 return 0;
2348 }
2349
2350 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
2351 {
2352 return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2353 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2354 }
2355 EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
2356
2357 int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
2358 {
2359 return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA,
2360 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
2361 }
2362
2363 struct mlx4_config_dev {
2364 __be32 update_flags;
2365 __be32 rsvd1[3];
2366 __be16 vxlan_udp_dport;
2367 __be16 rsvd2;
2368 __be16 roce_v2_entropy;
2369 __be16 roce_v2_udp_dport;
2370 __be32 roce_flags;
2371 __be32 rsvd4[25];
2372 __be16 rsvd5;
2373 u8 rsvd6;
2374 u8 rx_checksum_val;
2375 };
2376
2377 #define MLX4_VXLAN_UDP_DPORT (1 << 0)
2378 #define MLX4_ROCE_V2_UDP_DPORT BIT(3)
2379 #define MLX4_DISABLE_RX_PORT BIT(18)
2380
2381 static int mlx4_CONFIG_DEV_set(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2382 {
2383 int err;
2384 struct mlx4_cmd_mailbox *mailbox;
2385
2386 mailbox = mlx4_alloc_cmd_mailbox(dev);
2387 if (IS_ERR(mailbox))
2388 return PTR_ERR(mailbox);
2389
2390 memcpy(mailbox->buf, config_dev, sizeof(*config_dev));
2391
2392 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_CONFIG_DEV,
2393 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2394
2395 mlx4_free_cmd_mailbox(dev, mailbox);
2396 return err;
2397 }
2398
2399 static int mlx4_CONFIG_DEV_get(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2400 {
2401 int err;
2402 struct mlx4_cmd_mailbox *mailbox;
2403
2404 mailbox = mlx4_alloc_cmd_mailbox(dev);
2405 if (IS_ERR(mailbox))
2406 return PTR_ERR(mailbox);
2407
2408 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 1, MLX4_CMD_CONFIG_DEV,
2409 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2410
2411 if (!err)
2412 memcpy(config_dev, mailbox->buf, sizeof(*config_dev));
2413
2414 mlx4_free_cmd_mailbox(dev, mailbox);
2415 return err;
2416 }
2417
2418 /* Conversion between the HW values and the actual functionality.
2419 * The value represented by the array index,
2420 * and the functionality determined by the flags.
2421 */
2422 static const u8 config_dev_csum_flags[] = {
2423 [0] = 0,
2424 [1] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP,
2425 [2] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP |
2426 MLX4_RX_CSUM_MODE_L4,
2427 [3] = MLX4_RX_CSUM_MODE_L4 |
2428 MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP |
2429 MLX4_RX_CSUM_MODE_MULTI_VLAN
2430 };
2431
2432 int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
2433 struct mlx4_config_dev_params *params)
2434 {
2435 struct mlx4_config_dev config_dev = {0};
2436 int err;
2437 u8 csum_mask;
2438
2439 #define CONFIG_DEV_RX_CSUM_MODE_MASK 0x7
2440 #define CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET 0
2441 #define CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET 4
2442
2443 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CONFIG_DEV))
2444 return -EOPNOTSUPP;
2445
2446 err = mlx4_CONFIG_DEV_get(dev, &config_dev);
2447 if (err)
2448 return err;
2449
2450 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET) &
2451 CONFIG_DEV_RX_CSUM_MODE_MASK;
2452
2453 if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
2454 return -EINVAL;
2455 params->rx_csum_flags_port_1 = config_dev_csum_flags[csum_mask];
2456
2457 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET) &
2458 CONFIG_DEV_RX_CSUM_MODE_MASK;
2459
2460 if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
2461 return -EINVAL;
2462 params->rx_csum_flags_port_2 = config_dev_csum_flags[csum_mask];
2463
2464 params->vxlan_udp_dport = be16_to_cpu(config_dev.vxlan_udp_dport);
2465
2466 return 0;
2467 }
2468 EXPORT_SYMBOL_GPL(mlx4_config_dev_retrieval);
2469
2470 int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port)
2471 {
2472 struct mlx4_config_dev config_dev;
2473
2474 memset(&config_dev, 0, sizeof(config_dev));
2475 config_dev.update_flags = cpu_to_be32(MLX4_VXLAN_UDP_DPORT);
2476 config_dev.vxlan_udp_dport = udp_port;
2477
2478 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2479 }
2480 EXPORT_SYMBOL_GPL(mlx4_config_vxlan_port);
2481
2482 #define CONFIG_DISABLE_RX_PORT BIT(15)
2483 int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis)
2484 {
2485 struct mlx4_config_dev config_dev;
2486
2487 memset(&config_dev, 0, sizeof(config_dev));
2488 config_dev.update_flags = cpu_to_be32(MLX4_DISABLE_RX_PORT);
2489 if (dis)
2490 config_dev.roce_flags =
2491 cpu_to_be32(CONFIG_DISABLE_RX_PORT);
2492
2493 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2494 }
2495
2496 int mlx4_config_roce_v2_port(struct mlx4_dev *dev, u16 udp_port)
2497 {
2498 struct mlx4_config_dev config_dev;
2499
2500 memset(&config_dev, 0, sizeof(config_dev));
2501 config_dev.update_flags = cpu_to_be32(MLX4_ROCE_V2_UDP_DPORT);
2502 config_dev.roce_v2_udp_dport = cpu_to_be16(udp_port);
2503
2504 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2505 }
2506 EXPORT_SYMBOL_GPL(mlx4_config_roce_v2_port);
2507
2508 int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2)
2509 {
2510 struct mlx4_cmd_mailbox *mailbox;
2511 struct {
2512 __be32 v_port1;
2513 __be32 v_port2;
2514 } *v2p;
2515 int err;
2516
2517 mailbox = mlx4_alloc_cmd_mailbox(dev);
2518 if (IS_ERR(mailbox))
2519 return -ENOMEM;
2520
2521 v2p = mailbox->buf;
2522 v2p->v_port1 = cpu_to_be32(port1);
2523 v2p->v_port2 = cpu_to_be32(port2);
2524
2525 err = mlx4_cmd(dev, mailbox->dma, 0,
2526 MLX4_SET_PORT_VIRT2PHY, MLX4_CMD_VIRT_PORT_MAP,
2527 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2528
2529 mlx4_free_cmd_mailbox(dev, mailbox);
2530 return err;
2531 }
2532
2533
2534 int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
2535 {
2536 int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
2537 MLX4_CMD_SET_ICM_SIZE,
2538 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2539 if (ret)
2540 return ret;
2541
2542 /*
2543 * Round up number of system pages needed in case
2544 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
2545 */
2546 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
2547 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
2548
2549 return 0;
2550 }
2551
2552 int mlx4_NOP(struct mlx4_dev *dev)
2553 {
2554 /* Input modifier of 0x1f means "finish as soon as possible." */
2555 return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, MLX4_CMD_TIME_CLASS_A,
2556 MLX4_CMD_NATIVE);
2557 }
2558
2559 int mlx4_query_diag_counters(struct mlx4_dev *dev, u8 op_modifier,
2560 const u32 offset[],
2561 u32 value[], size_t array_len, u8 port)
2562 {
2563 struct mlx4_cmd_mailbox *mailbox;
2564 u32 *outbox;
2565 size_t i;
2566 int ret;
2567
2568 mailbox = mlx4_alloc_cmd_mailbox(dev);
2569 if (IS_ERR(mailbox))
2570 return PTR_ERR(mailbox);
2571
2572 outbox = mailbox->buf;
2573
2574 ret = mlx4_cmd_box(dev, 0, mailbox->dma, port, op_modifier,
2575 MLX4_CMD_DIAG_RPRT, MLX4_CMD_TIME_CLASS_A,
2576 MLX4_CMD_NATIVE);
2577 if (ret)
2578 goto out;
2579
2580 for (i = 0; i < array_len; i++) {
2581 if (offset[i] > MLX4_MAILBOX_SIZE) {
2582 ret = -EINVAL;
2583 goto out;
2584 }
2585
2586 MLX4_GET(value[i], outbox, offset[i]);
2587 }
2588
2589 out:
2590 mlx4_free_cmd_mailbox(dev, mailbox);
2591 return ret;
2592 }
2593 EXPORT_SYMBOL(mlx4_query_diag_counters);
2594
2595 int mlx4_get_phys_port_id(struct mlx4_dev *dev)
2596 {
2597 u8 port;
2598 u32 *outbox;
2599 struct mlx4_cmd_mailbox *mailbox;
2600 u32 in_mod;
2601 u32 guid_hi, guid_lo;
2602 int err, ret = 0;
2603 #define MOD_STAT_CFG_PORT_OFFSET 8
2604 #define MOD_STAT_CFG_GUID_H 0X14
2605 #define MOD_STAT_CFG_GUID_L 0X1c
2606
2607 mailbox = mlx4_alloc_cmd_mailbox(dev);
2608 if (IS_ERR(mailbox))
2609 return PTR_ERR(mailbox);
2610 outbox = mailbox->buf;
2611
2612 for (port = 1; port <= dev->caps.num_ports; port++) {
2613 in_mod = port << MOD_STAT_CFG_PORT_OFFSET;
2614 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_mod, 0x2,
2615 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2616 MLX4_CMD_NATIVE);
2617 if (err) {
2618 mlx4_err(dev, "Fail to get port %d uplink guid\n",
2619 port);
2620 ret = err;
2621 } else {
2622 MLX4_GET(guid_hi, outbox, MOD_STAT_CFG_GUID_H);
2623 MLX4_GET(guid_lo, outbox, MOD_STAT_CFG_GUID_L);
2624 dev->caps.phys_port_id[port] = (u64)guid_lo |
2625 (u64)guid_hi << 32;
2626 }
2627 }
2628 mlx4_free_cmd_mailbox(dev, mailbox);
2629 return ret;
2630 }
2631
2632 #define MLX4_WOL_SETUP_MODE (5 << 28)
2633 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
2634 {
2635 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2636
2637 return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
2638 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2639 MLX4_CMD_NATIVE);
2640 }
2641 EXPORT_SYMBOL_GPL(mlx4_wol_read);
2642
2643 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
2644 {
2645 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2646
2647 return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
2648 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2649 }
2650 EXPORT_SYMBOL_GPL(mlx4_wol_write);
2651
2652 enum {
2653 ADD_TO_MCG = 0x26,
2654 };
2655
2656
2657 void mlx4_opreq_action(struct work_struct *work)
2658 {
2659 struct mlx4_priv *priv = container_of(work, struct mlx4_priv,
2660 opreq_task);
2661 struct mlx4_dev *dev = &priv->dev;
2662 int num_tasks = atomic_read(&priv->opreq_count);
2663 struct mlx4_cmd_mailbox *mailbox;
2664 struct mlx4_mgm *mgm;
2665 u32 *outbox;
2666 u32 modifier;
2667 u16 token;
2668 u16 type;
2669 int err;
2670 u32 num_qps;
2671 struct mlx4_qp qp;
2672 int i;
2673 u8 rem_mcg;
2674 u8 prot;
2675
2676 #define GET_OP_REQ_MODIFIER_OFFSET 0x08
2677 #define GET_OP_REQ_TOKEN_OFFSET 0x14
2678 #define GET_OP_REQ_TYPE_OFFSET 0x1a
2679 #define GET_OP_REQ_DATA_OFFSET 0x20
2680
2681 mailbox = mlx4_alloc_cmd_mailbox(dev);
2682 if (IS_ERR(mailbox)) {
2683 mlx4_err(dev, "Failed to allocate mailbox for GET_OP_REQ\n");
2684 return;
2685 }
2686 outbox = mailbox->buf;
2687
2688 while (num_tasks) {
2689 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2690 MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2691 MLX4_CMD_NATIVE);
2692 if (err) {
2693 mlx4_err(dev, "Failed to retrieve required operation: %d\n",
2694 err);
2695 return;
2696 }
2697 MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
2698 MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
2699 MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
2700 type &= 0xfff;
2701
2702 switch (type) {
2703 case ADD_TO_MCG:
2704 if (dev->caps.steering_mode ==
2705 MLX4_STEERING_MODE_DEVICE_MANAGED) {
2706 mlx4_warn(dev, "ADD MCG operation is not supported in DEVICE_MANAGED steering mode\n");
2707 err = EPERM;
2708 break;
2709 }
2710 mgm = (struct mlx4_mgm *)((u8 *)(outbox) +
2711 GET_OP_REQ_DATA_OFFSET);
2712 num_qps = be32_to_cpu(mgm->members_count) &
2713 MGM_QPN_MASK;
2714 rem_mcg = ((u8 *)(&mgm->members_count))[0] & 1;
2715 prot = ((u8 *)(&mgm->members_count))[0] >> 6;
2716
2717 for (i = 0; i < num_qps; i++) {
2718 qp.qpn = be32_to_cpu(mgm->qp[i]);
2719 if (rem_mcg)
2720 err = mlx4_multicast_detach(dev, &qp,
2721 mgm->gid,
2722 prot, 0);
2723 else
2724 err = mlx4_multicast_attach(dev, &qp,
2725 mgm->gid,
2726 mgm->gid[5]
2727 , 0, prot,
2728 NULL);
2729 if (err)
2730 break;
2731 }
2732 break;
2733 default:
2734 mlx4_warn(dev, "Bad type for required operation\n");
2735 err = EINVAL;
2736 break;
2737 }
2738 err = mlx4_cmd(dev, 0, ((u32) err |
2739 (__force u32)cpu_to_be32(token) << 16),
2740 1, MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2741 MLX4_CMD_NATIVE);
2742 if (err) {
2743 mlx4_err(dev, "Failed to acknowledge required request: %d\n",
2744 err);
2745 goto out;
2746 }
2747 memset(outbox, 0, 0xffc);
2748 num_tasks = atomic_dec_return(&priv->opreq_count);
2749 }
2750
2751 out:
2752 mlx4_free_cmd_mailbox(dev, mailbox);
2753 }
2754
2755 static int mlx4_check_smp_firewall_active(struct mlx4_dev *dev,
2756 struct mlx4_cmd_mailbox *mailbox)
2757 {
2758 #define MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET 0x10
2759 #define MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET 0x20
2760 #define MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET 0x40
2761 #define MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET 0x70
2762
2763 u32 set_attr_mask, getresp_attr_mask;
2764 u32 trap_attr_mask, traprepress_attr_mask;
2765
2766 MLX4_GET(set_attr_mask, mailbox->buf,
2767 MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET);
2768 mlx4_dbg(dev, "SMP firewall set_attribute_mask = 0x%x\n",
2769 set_attr_mask);
2770
2771 MLX4_GET(getresp_attr_mask, mailbox->buf,
2772 MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET);
2773 mlx4_dbg(dev, "SMP firewall getresp_attribute_mask = 0x%x\n",
2774 getresp_attr_mask);
2775
2776 MLX4_GET(trap_attr_mask, mailbox->buf,
2777 MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET);
2778 mlx4_dbg(dev, "SMP firewall trap_attribute_mask = 0x%x\n",
2779 trap_attr_mask);
2780
2781 MLX4_GET(traprepress_attr_mask, mailbox->buf,
2782 MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET);
2783 mlx4_dbg(dev, "SMP firewall traprepress_attribute_mask = 0x%x\n",
2784 traprepress_attr_mask);
2785
2786 if (set_attr_mask && getresp_attr_mask && trap_attr_mask &&
2787 traprepress_attr_mask)
2788 return 1;
2789
2790 return 0;
2791 }
2792
2793 int mlx4_config_mad_demux(struct mlx4_dev *dev)
2794 {
2795 struct mlx4_cmd_mailbox *mailbox;
2796 int err;
2797
2798 /* Check if mad_demux is supported */
2799 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_MAD_DEMUX))
2800 return 0;
2801
2802 mailbox = mlx4_alloc_cmd_mailbox(dev);
2803 if (IS_ERR(mailbox)) {
2804 mlx4_warn(dev, "Failed to allocate mailbox for cmd MAD_DEMUX");
2805 return -ENOMEM;
2806 }
2807
2808 /* Query mad_demux to find out which MADs are handled by internal sma */
2809 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0x01 /* subn mgmt class */,
2810 MLX4_CMD_MAD_DEMUX_QUERY_RESTR, MLX4_CMD_MAD_DEMUX,
2811 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2812 if (err) {
2813 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: query restrictions failed (%d)\n",
2814 err);
2815 goto out;
2816 }
2817
2818 if (mlx4_check_smp_firewall_active(dev, mailbox))
2819 dev->flags |= MLX4_FLAG_SECURE_HOST;
2820
2821 /* Config mad_demux to handle all MADs returned by the query above */
2822 err = mlx4_cmd(dev, mailbox->dma, 0x01 /* subn mgmt class */,
2823 MLX4_CMD_MAD_DEMUX_CONFIG, MLX4_CMD_MAD_DEMUX,
2824 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2825 if (err) {
2826 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: configure failed (%d)\n", err);
2827 goto out;
2828 }
2829
2830 if (dev->flags & MLX4_FLAG_SECURE_HOST)
2831 mlx4_warn(dev, "HCA operating in secure-host mode. SMP firewall activated.\n");
2832 out:
2833 mlx4_free_cmd_mailbox(dev, mailbox);
2834 return err;
2835 }
2836
2837 /* Access Reg commands */
2838 enum mlx4_access_reg_masks {
2839 MLX4_ACCESS_REG_STATUS_MASK = 0x7f,
2840 MLX4_ACCESS_REG_METHOD_MASK = 0x7f,
2841 MLX4_ACCESS_REG_LEN_MASK = 0x7ff
2842 };
2843
2844 struct mlx4_access_reg {
2845 __be16 constant1;
2846 u8 status;
2847 u8 resrvd1;
2848 __be16 reg_id;
2849 u8 method;
2850 u8 constant2;
2851 __be32 resrvd2[2];
2852 __be16 len_const;
2853 __be16 resrvd3;
2854 #define MLX4_ACCESS_REG_HEADER_SIZE (20)
2855 u8 reg_data[MLX4_MAILBOX_SIZE-MLX4_ACCESS_REG_HEADER_SIZE];
2856 } __attribute__((__packed__));
2857
2858 /**
2859 * mlx4_ACCESS_REG - Generic access reg command.
2860 * @dev: mlx4_dev.
2861 * @reg_id: register ID to access.
2862 * @method: Access method Read/Write.
2863 * @reg_len: register length to Read/Write in bytes.
2864 * @reg_data: reg_data pointer to Read/Write From/To.
2865 *
2866 * Access ConnectX registers FW command.
2867 * Returns 0 on success and copies outbox mlx4_access_reg data
2868 * field into reg_data or a negative error code.
2869 */
2870 static int mlx4_ACCESS_REG(struct mlx4_dev *dev, u16 reg_id,
2871 enum mlx4_access_reg_method method,
2872 u16 reg_len, void *reg_data)
2873 {
2874 struct mlx4_cmd_mailbox *inbox, *outbox;
2875 struct mlx4_access_reg *inbuf, *outbuf;
2876 int err;
2877
2878 inbox = mlx4_alloc_cmd_mailbox(dev);
2879 if (IS_ERR(inbox))
2880 return PTR_ERR(inbox);
2881
2882 outbox = mlx4_alloc_cmd_mailbox(dev);
2883 if (IS_ERR(outbox)) {
2884 mlx4_free_cmd_mailbox(dev, inbox);
2885 return PTR_ERR(outbox);
2886 }
2887
2888 inbuf = inbox->buf;
2889 outbuf = outbox->buf;
2890
2891 inbuf->constant1 = cpu_to_be16(0x1<<11 | 0x4);
2892 inbuf->constant2 = 0x1;
2893 inbuf->reg_id = cpu_to_be16(reg_id);
2894 inbuf->method = method & MLX4_ACCESS_REG_METHOD_MASK;
2895
2896 reg_len = min(reg_len, (u16)(sizeof(inbuf->reg_data)));
2897 inbuf->len_const =
2898 cpu_to_be16(((reg_len/4 + 1) & MLX4_ACCESS_REG_LEN_MASK) |
2899 ((0x3) << 12));
2900
2901 memcpy(inbuf->reg_data, reg_data, reg_len);
2902 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 0, 0,
2903 MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2904 MLX4_CMD_WRAPPED);
2905 if (err)
2906 goto out;
2907
2908 if (outbuf->status & MLX4_ACCESS_REG_STATUS_MASK) {
2909 err = outbuf->status & MLX4_ACCESS_REG_STATUS_MASK;
2910 mlx4_err(dev,
2911 "MLX4_CMD_ACCESS_REG(%x) returned REG status (%x)\n",
2912 reg_id, err);
2913 goto out;
2914 }
2915
2916 memcpy(reg_data, outbuf->reg_data, reg_len);
2917 out:
2918 mlx4_free_cmd_mailbox(dev, inbox);
2919 mlx4_free_cmd_mailbox(dev, outbox);
2920 return err;
2921 }
2922
2923 /* ConnectX registers IDs */
2924 enum mlx4_reg_id {
2925 MLX4_REG_ID_PTYS = 0x5004,
2926 };
2927
2928 /**
2929 * mlx4_ACCESS_PTYS_REG - Access PTYs (Port Type and Speed)
2930 * register
2931 * @dev: mlx4_dev.
2932 * @method: Access method Read/Write.
2933 * @ptys_reg: PTYS register data pointer.
2934 *
2935 * Access ConnectX PTYS register, to Read/Write Port Type/Speed
2936 * configuration
2937 * Returns 0 on success or a negative error code.
2938 */
2939 int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
2940 enum mlx4_access_reg_method method,
2941 struct mlx4_ptys_reg *ptys_reg)
2942 {
2943 return mlx4_ACCESS_REG(dev, MLX4_REG_ID_PTYS,
2944 method, sizeof(*ptys_reg), ptys_reg);
2945 }
2946 EXPORT_SYMBOL_GPL(mlx4_ACCESS_PTYS_REG);
2947
2948 int mlx4_ACCESS_REG_wrapper(struct mlx4_dev *dev, int slave,
2949 struct mlx4_vhcr *vhcr,
2950 struct mlx4_cmd_mailbox *inbox,
2951 struct mlx4_cmd_mailbox *outbox,
2952 struct mlx4_cmd_info *cmd)
2953 {
2954 struct mlx4_access_reg *inbuf = inbox->buf;
2955 u8 method = inbuf->method & MLX4_ACCESS_REG_METHOD_MASK;
2956 u16 reg_id = be16_to_cpu(inbuf->reg_id);
2957
2958 if (slave != mlx4_master_func_num(dev) &&
2959 method == MLX4_ACCESS_REG_WRITE)
2960 return -EPERM;
2961
2962 if (reg_id == MLX4_REG_ID_PTYS) {
2963 struct mlx4_ptys_reg *ptys_reg =
2964 (struct mlx4_ptys_reg *)inbuf->reg_data;
2965
2966 ptys_reg->local_port =
2967 mlx4_slave_convert_port(dev, slave,
2968 ptys_reg->local_port);
2969 }
2970
2971 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier,
2972 0, MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2973 MLX4_CMD_NATIVE);
2974 }
2975
2976 static int mlx4_SET_PORT_phv_bit(struct mlx4_dev *dev, u8 port, u8 phv_bit)
2977 {
2978 #define SET_PORT_GEN_PHV_VALID 0x10
2979 #define SET_PORT_GEN_PHV_EN 0x80
2980
2981 struct mlx4_cmd_mailbox *mailbox;
2982 struct mlx4_set_port_general_context *context;
2983 u32 in_mod;
2984 int err;
2985
2986 mailbox = mlx4_alloc_cmd_mailbox(dev);
2987 if (IS_ERR(mailbox))
2988 return PTR_ERR(mailbox);
2989 context = mailbox->buf;
2990
2991 context->flags2 |= SET_PORT_GEN_PHV_VALID;
2992 if (phv_bit)
2993 context->phv_en |= SET_PORT_GEN_PHV_EN;
2994
2995 in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
2996 err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE,
2997 MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
2998 MLX4_CMD_NATIVE);
2999
3000 mlx4_free_cmd_mailbox(dev, mailbox);
3001 return err;
3002 }
3003
3004 int get_phv_bit(struct mlx4_dev *dev, u8 port, int *phv)
3005 {
3006 int err;
3007 struct mlx4_func_cap func_cap;
3008
3009 memset(&func_cap, 0, sizeof(func_cap));
3010 err = mlx4_QUERY_FUNC_CAP(dev, port, &func_cap);
3011 if (!err)
3012 *phv = func_cap.flags0 & QUERY_FUNC_CAP_PHV_BIT;
3013 return err;
3014 }
3015 EXPORT_SYMBOL(get_phv_bit);
3016
3017 int set_phv_bit(struct mlx4_dev *dev, u8 port, int new_val)
3018 {
3019 int ret;
3020
3021 if (mlx4_is_slave(dev))
3022 return -EPERM;
3023
3024 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
3025 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
3026 ret = mlx4_SET_PORT_phv_bit(dev, port, new_val);
3027 if (!ret)
3028 dev->caps.phv_bit[port] = new_val;
3029 return ret;
3030 }
3031
3032 return -EOPNOTSUPP;
3033 }
3034 EXPORT_SYMBOL(set_phv_bit);
3035
3036 int mlx4_get_is_vlan_offload_disabled(struct mlx4_dev *dev, u8 port,
3037 bool *vlan_offload_disabled)
3038 {
3039 struct mlx4_func_cap func_cap;
3040 int err;
3041
3042 memset(&func_cap, 0, sizeof(func_cap));
3043 err = mlx4_QUERY_FUNC_CAP(dev, port, &func_cap);
3044 if (!err)
3045 *vlan_offload_disabled =
3046 !!(func_cap.flags0 &
3047 QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE);
3048 return err;
3049 }
3050 EXPORT_SYMBOL(mlx4_get_is_vlan_offload_disabled);
3051
3052 void mlx4_replace_zero_macs(struct mlx4_dev *dev)
3053 {
3054 int i;
3055 u8 mac_addr[ETH_ALEN];
3056
3057 dev->port_random_macs = 0;
3058 for (i = 1; i <= dev->caps.num_ports; ++i)
3059 if (!dev->caps.def_mac[i] &&
3060 dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) {
3061 eth_random_addr(mac_addr);
3062 dev->port_random_macs |= 1 << i;
3063 dev->caps.def_mac[i] = mlx4_mac_to_u64(mac_addr);
3064 }
3065 }
3066 EXPORT_SYMBOL_GPL(mlx4_replace_zero_macs);
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