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 #include <linux/kernel.h>
40 #include <uapi/rdma/mlx4-abi.h>
41
42 #include "fw.h"
43 #include "icm.h"
44
45 enum {
46 MLX4_COMMAND_INTERFACE_MIN_REV = 2,
47 MLX4_COMMAND_INTERFACE_MAX_REV = 3,
48 MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS = 3,
49 };
50
51 extern void __buggy_use_of_MLX4_GET(void);
52 extern void __buggy_use_of_MLX4_PUT(void);
53
54 static bool enable_qos;
55 module_param(enable_qos, bool, 0444);
56 MODULE_PARM_DESC(enable_qos, "Enable Enhanced QoS support (default: off)");
57
58 #define MLX4_GET(dest, source, offset) \
59 do { \
60 void *__p = (char *) (source) + (offset); \
61 __be64 val; \
62 switch (sizeof(dest)) { \
63 case 1: (dest) = *(u8 *) __p; break; \
64 case 2: (dest) = be16_to_cpup(__p); break; \
65 case 4: (dest) = be32_to_cpup(__p); break; \
66 case 8: val = get_unaligned((__be64 *)__p); \
67 (dest) = be64_to_cpu(val); break; \
68 default: __buggy_use_of_MLX4_GET(); \
69 } \
70 } while (0)
71
72 #define MLX4_PUT(dest, source, offset) \
73 do { \
74 void *__d = ((char *) (dest) + (offset)); \
75 switch (sizeof(source)) { \
76 case 1: *(u8 *) __d = (source); break; \
77 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
78 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
79 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
80 default: __buggy_use_of_MLX4_PUT(); \
81 } \
82 } while (0)
83
dump_dev_cap_flags(struct mlx4_dev * dev,u64 flags)84 static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
85 {
86 static const char *fname[] = {
87 [ 0] = "RC transport",
88 [ 1] = "UC transport",
89 [ 2] = "UD transport",
90 [ 3] = "XRC transport",
91 [ 6] = "SRQ support",
92 [ 7] = "IPoIB checksum offload",
93 [ 8] = "P_Key violation counter",
94 [ 9] = "Q_Key violation counter",
95 [12] = "Dual Port Different Protocol (DPDP) support",
96 [15] = "Big LSO headers",
97 [16] = "MW support",
98 [17] = "APM support",
99 [18] = "Atomic ops support",
100 [19] = "Raw multicast support",
101 [20] = "Address vector port checking support",
102 [21] = "UD multicast support",
103 [30] = "IBoE support",
104 [32] = "Unicast loopback support",
105 [34] = "FCS header control",
106 [37] = "Wake On LAN (port1) support",
107 [38] = "Wake On LAN (port2) support",
108 [40] = "UDP RSS support",
109 [41] = "Unicast VEP steering support",
110 [42] = "Multicast VEP steering support",
111 [48] = "Counters support",
112 [52] = "RSS IP fragments support",
113 [53] = "Port ETS Scheduler support",
114 [55] = "Port link type sensing support",
115 [59] = "Port management change event support",
116 [61] = "64 byte EQE support",
117 [62] = "64 byte CQE support",
118 };
119 int i;
120
121 mlx4_dbg(dev, "DEV_CAP flags:\n");
122 for (i = 0; i < ARRAY_SIZE(fname); ++i)
123 if (fname[i] && (flags & (1LL << i)))
124 mlx4_dbg(dev, " %s\n", fname[i]);
125 }
126
dump_dev_cap_flags2(struct mlx4_dev * dev,u64 flags)127 static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
128 {
129 static const char * const fname[] = {
130 [0] = "RSS support",
131 [1] = "RSS Toeplitz Hash Function support",
132 [2] = "RSS XOR Hash Function support",
133 [3] = "Device managed flow steering support",
134 [4] = "Automatic MAC reassignment support",
135 [5] = "Time stamping support",
136 [6] = "VST (control vlan insertion/stripping) support",
137 [7] = "FSM (MAC anti-spoofing) support",
138 [8] = "Dynamic QP updates support",
139 [9] = "Device managed flow steering IPoIB support",
140 [10] = "TCP/IP offloads/flow-steering for VXLAN support",
141 [11] = "MAD DEMUX (Secure-Host) support",
142 [12] = "Large cache line (>64B) CQE stride support",
143 [13] = "Large cache line (>64B) EQE stride support",
144 [14] = "Ethernet protocol control support",
145 [15] = "Ethernet Backplane autoneg support",
146 [16] = "CONFIG DEV support",
147 [17] = "Asymmetric EQs support",
148 [18] = "More than 80 VFs support",
149 [19] = "Performance optimized for limited rule configuration flow steering support",
150 [20] = "Recoverable error events support",
151 [21] = "Port Remap support",
152 [22] = "QCN support",
153 [23] = "QP rate limiting support",
154 [24] = "Ethernet Flow control statistics support",
155 [25] = "Granular QoS per VF support",
156 [26] = "Port ETS Scheduler support",
157 [27] = "Port beacon support",
158 [28] = "RX-ALL support",
159 [29] = "802.1ad offload support",
160 [31] = "Modifying loopback source checks using UPDATE_QP support",
161 [32] = "Loopback source checks support",
162 [33] = "RoCEv2 support",
163 [34] = "DMFS Sniffer support (UC & MC)",
164 [35] = "Diag counters per port",
165 [36] = "QinQ VST mode support",
166 [37] = "sl to vl mapping table change event support",
167 [38] = "user MAC support",
168 [39] = "Report driver version to FW support",
169 [40] = "SW CQ initialization support",
170 };
171 int i;
172
173 for (i = 0; i < ARRAY_SIZE(fname); ++i)
174 if (fname[i] && (flags & (1LL << i)))
175 mlx4_dbg(dev, " %s\n", fname[i]);
176 }
177
mlx4_MOD_STAT_CFG(struct mlx4_dev * dev,struct mlx4_mod_stat_cfg * cfg)178 int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
179 {
180 struct mlx4_cmd_mailbox *mailbox;
181 u32 *inbox;
182 int err = 0;
183
184 #define MOD_STAT_CFG_IN_SIZE 0x100
185
186 #define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
187 #define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
188
189 mailbox = mlx4_alloc_cmd_mailbox(dev);
190 if (IS_ERR(mailbox))
191 return PTR_ERR(mailbox);
192 inbox = mailbox->buf;
193
194 MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
195 MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
196
197 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
198 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
199
200 mlx4_free_cmd_mailbox(dev, mailbox);
201 return err;
202 }
203
mlx4_QUERY_FUNC(struct mlx4_dev * dev,struct mlx4_func * func,int slave)204 int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
205 {
206 struct mlx4_cmd_mailbox *mailbox;
207 u32 *outbox;
208 u8 in_modifier;
209 u8 field;
210 u16 field16;
211 int err;
212
213 #define QUERY_FUNC_BUS_OFFSET 0x00
214 #define QUERY_FUNC_DEVICE_OFFSET 0x01
215 #define QUERY_FUNC_FUNCTION_OFFSET 0x01
216 #define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
217 #define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
218 #define QUERY_FUNC_MAX_EQ_OFFSET 0x06
219 #define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
220
221 mailbox = mlx4_alloc_cmd_mailbox(dev);
222 if (IS_ERR(mailbox))
223 return PTR_ERR(mailbox);
224 outbox = mailbox->buf;
225
226 in_modifier = slave;
227
228 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
229 MLX4_CMD_QUERY_FUNC,
230 MLX4_CMD_TIME_CLASS_A,
231 MLX4_CMD_NATIVE);
232 if (err)
233 goto out;
234
235 MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
236 func->bus = field & 0xf;
237 MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
238 func->device = field & 0xf1;
239 MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
240 func->function = field & 0x7;
241 MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
242 func->physical_function = field & 0xf;
243 MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
244 func->rsvd_eqs = field16 & 0xffff;
245 MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
246 func->max_eq = field16 & 0xffff;
247 MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
248 func->rsvd_uars = field & 0x0f;
249
250 mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
251 func->bus, func->device, func->function, func->physical_function,
252 func->max_eq, func->rsvd_eqs, func->rsvd_uars);
253
254 out:
255 mlx4_free_cmd_mailbox(dev, mailbox);
256 return err;
257 }
258
mlx4_activate_vst_qinq(struct mlx4_priv * priv,int slave,int port)259 static int mlx4_activate_vst_qinq(struct mlx4_priv *priv, int slave, int port)
260 {
261 struct mlx4_vport_oper_state *vp_oper;
262 struct mlx4_vport_state *vp_admin;
263 int err;
264
265 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
266 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
267
268 if (vp_admin->default_vlan != vp_oper->state.default_vlan) {
269 err = __mlx4_register_vlan(&priv->dev, port,
270 vp_admin->default_vlan,
271 &vp_oper->vlan_idx);
272 if (err) {
273 vp_oper->vlan_idx = NO_INDX;
274 mlx4_warn(&priv->dev,
275 "No vlan resources slave %d, port %d\n",
276 slave, port);
277 return err;
278 }
279 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n",
280 (int)(vp_oper->state.default_vlan),
281 vp_oper->vlan_idx, slave, port);
282 }
283 vp_oper->state.vlan_proto = vp_admin->vlan_proto;
284 vp_oper->state.default_vlan = vp_admin->default_vlan;
285 vp_oper->state.default_qos = vp_admin->default_qos;
286
287 return 0;
288 }
289
mlx4_handle_vst_qinq(struct mlx4_priv * priv,int slave,int port)290 static int mlx4_handle_vst_qinq(struct mlx4_priv *priv, int slave, int port)
291 {
292 struct mlx4_vport_oper_state *vp_oper;
293 struct mlx4_slave_state *slave_state;
294 struct mlx4_vport_state *vp_admin;
295 int err;
296
297 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
298 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
299 slave_state = &priv->mfunc.master.slave_state[slave];
300
301 if ((vp_admin->vlan_proto != htons(ETH_P_8021AD)) ||
302 (!slave_state->active))
303 return 0;
304
305 if (vp_oper->state.vlan_proto == vp_admin->vlan_proto &&
306 vp_oper->state.default_vlan == vp_admin->default_vlan &&
307 vp_oper->state.default_qos == vp_admin->default_qos)
308 return 0;
309
310 if (!slave_state->vst_qinq_supported) {
311 /* Warn and revert the request to set vst QinQ mode */
312 vp_admin->vlan_proto = vp_oper->state.vlan_proto;
313 vp_admin->default_vlan = vp_oper->state.default_vlan;
314 vp_admin->default_qos = vp_oper->state.default_qos;
315
316 mlx4_warn(&priv->dev,
317 "Slave %d does not support VST QinQ mode\n", slave);
318 return 0;
319 }
320
321 err = mlx4_activate_vst_qinq(priv, slave, port);
322 return err;
323 }
324
mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)325 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
326 struct mlx4_vhcr *vhcr,
327 struct mlx4_cmd_mailbox *inbox,
328 struct mlx4_cmd_mailbox *outbox,
329 struct mlx4_cmd_info *cmd)
330 {
331 struct mlx4_priv *priv = mlx4_priv(dev);
332 u8 field, port;
333 u32 size, proxy_qp, qkey;
334 int err = 0;
335 struct mlx4_func func;
336
337 #define QUERY_FUNC_CAP_FLAGS_OFFSET 0x0
338 #define QUERY_FUNC_CAP_NUM_PORTS_OFFSET 0x1
339 #define QUERY_FUNC_CAP_PF_BHVR_OFFSET 0x4
340 #define QUERY_FUNC_CAP_FMR_OFFSET 0x8
341 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP 0x10
342 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP 0x14
343 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP 0x18
344 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP 0x20
345 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP 0x24
346 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP 0x28
347 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET 0x2c
348 #define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET 0x30
349 #define QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET 0x48
350
351 #define QUERY_FUNC_CAP_QP_QUOTA_OFFSET 0x50
352 #define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET 0x54
353 #define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET 0x58
354 #define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET 0x60
355 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET 0x64
356 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET 0x68
357
358 #define QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET 0x6c
359
360 #define QUERY_FUNC_CAP_FMR_FLAG 0x80
361 #define QUERY_FUNC_CAP_FLAG_RDMA 0x40
362 #define QUERY_FUNC_CAP_FLAG_ETH 0x80
363 #define QUERY_FUNC_CAP_FLAG_QUOTAS 0x10
364 #define QUERY_FUNC_CAP_FLAG_RESD_LKEY 0x08
365 #define QUERY_FUNC_CAP_FLAG_VALID_MAILBOX 0x04
366
367 #define QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG (1UL << 31)
368 #define QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG (1UL << 30)
369
370 /* when opcode modifier = 1 */
371 #define QUERY_FUNC_CAP_PHYS_PORT_OFFSET 0x3
372 #define QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET 0x4
373 #define QUERY_FUNC_CAP_FLAGS0_OFFSET 0x8
374 #define QUERY_FUNC_CAP_FLAGS1_OFFSET 0xc
375
376 #define QUERY_FUNC_CAP_QP0_TUNNEL 0x10
377 #define QUERY_FUNC_CAP_QP0_PROXY 0x14
378 #define QUERY_FUNC_CAP_QP1_TUNNEL 0x18
379 #define QUERY_FUNC_CAP_QP1_PROXY 0x1c
380 #define QUERY_FUNC_CAP_PHYS_PORT_ID 0x28
381
382 #define QUERY_FUNC_CAP_FLAGS1_FORCE_MAC 0x40
383 #define QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN 0x80
384 #define QUERY_FUNC_CAP_FLAGS1_NIC_INFO 0x10
385 #define QUERY_FUNC_CAP_VF_ENABLE_QP0 0x08
386
387 #define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
388 #define QUERY_FUNC_CAP_PHV_BIT 0x40
389 #define QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE 0x20
390
391 #define QUERY_FUNC_CAP_SUPPORTS_VST_QINQ BIT(30)
392 #define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS BIT(31)
393
394 if (vhcr->op_modifier == 1) {
395 struct mlx4_active_ports actv_ports =
396 mlx4_get_active_ports(dev, slave);
397 int converted_port = mlx4_slave_convert_port(
398 dev, slave, vhcr->in_modifier);
399 struct mlx4_vport_oper_state *vp_oper;
400
401 if (converted_port < 0)
402 return -EINVAL;
403
404 vhcr->in_modifier = converted_port;
405 /* phys-port = logical-port */
406 field = vhcr->in_modifier -
407 find_first_bit(actv_ports.ports, dev->caps.num_ports);
408 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
409
410 port = vhcr->in_modifier;
411 proxy_qp = dev->phys_caps.base_proxy_sqpn + 8 * slave + port - 1;
412
413 /* Set nic_info bit to mark new fields support */
414 field = QUERY_FUNC_CAP_FLAGS1_NIC_INFO;
415
416 if (mlx4_vf_smi_enabled(dev, slave, port) &&
417 !mlx4_get_parav_qkey(dev, proxy_qp, &qkey)) {
418 field |= QUERY_FUNC_CAP_VF_ENABLE_QP0;
419 MLX4_PUT(outbox->buf, qkey,
420 QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
421 }
422 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
423
424 /* size is now the QP number */
425 size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + port - 1;
426 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
427
428 size += 2;
429 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
430
431 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP0_PROXY);
432 proxy_qp += 2;
433 MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP1_PROXY);
434
435 MLX4_PUT(outbox->buf, dev->caps.phys_port_id[vhcr->in_modifier],
436 QUERY_FUNC_CAP_PHYS_PORT_ID);
437
438 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
439 err = mlx4_handle_vst_qinq(priv, slave, port);
440 if (err)
441 return err;
442
443 field = 0;
444 if (dev->caps.phv_bit[port])
445 field |= QUERY_FUNC_CAP_PHV_BIT;
446 if (vp_oper->state.vlan_proto == htons(ETH_P_8021AD))
447 field |= QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE;
448 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS0_OFFSET);
449
450 } else if (vhcr->op_modifier == 0) {
451 struct mlx4_active_ports actv_ports =
452 mlx4_get_active_ports(dev, slave);
453 struct mlx4_slave_state *slave_state =
454 &priv->mfunc.master.slave_state[slave];
455
456 /* enable rdma and ethernet interfaces, new quota locations,
457 * and reserved lkey
458 */
459 field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
460 QUERY_FUNC_CAP_FLAG_QUOTAS | QUERY_FUNC_CAP_FLAG_VALID_MAILBOX |
461 QUERY_FUNC_CAP_FLAG_RESD_LKEY);
462 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
463
464 field = min(
465 bitmap_weight(actv_ports.ports, dev->caps.num_ports),
466 dev->caps.num_ports);
467 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
468
469 size = dev->caps.function_caps; /* set PF behaviours */
470 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
471
472 field = 0; /* protected FMR support not available as yet */
473 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
474
475 size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
476 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
477 size = dev->caps.num_qps;
478 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
479
480 size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
481 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
482 size = dev->caps.num_srqs;
483 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
484
485 size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
486 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
487 size = dev->caps.num_cqs;
488 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
489
490 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) ||
491 mlx4_QUERY_FUNC(dev, &func, slave)) {
492 size = vhcr->in_modifier &
493 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
494 dev->caps.num_eqs :
495 rounddown_pow_of_two(dev->caps.num_eqs);
496 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
497 size = dev->caps.reserved_eqs;
498 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
499 } else {
500 size = vhcr->in_modifier &
501 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
502 func.max_eq :
503 rounddown_pow_of_two(func.max_eq);
504 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
505 size = func.rsvd_eqs;
506 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
507 }
508
509 size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
510 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
511 size = dev->caps.num_mpts;
512 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
513
514 size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
515 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
516 size = dev->caps.num_mtts;
517 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
518
519 size = dev->caps.num_mgms + dev->caps.num_amgms;
520 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
521 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
522
523 size = QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG |
524 QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG;
525 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
526
527 size = dev->caps.reserved_lkey + ((slave << 8) & 0xFF00);
528 MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
529
530 if (vhcr->in_modifier & QUERY_FUNC_CAP_SUPPORTS_VST_QINQ)
531 slave_state->vst_qinq_supported = true;
532
533 } else
534 err = -EINVAL;
535
536 return err;
537 }
538
mlx4_QUERY_FUNC_CAP(struct mlx4_dev * dev,u8 gen_or_port,struct mlx4_func_cap * func_cap)539 int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,
540 struct mlx4_func_cap *func_cap)
541 {
542 struct mlx4_cmd_mailbox *mailbox;
543 u32 *outbox;
544 u8 field, op_modifier;
545 u32 size, qkey;
546 int err = 0, quotas = 0;
547 u32 in_modifier;
548 u32 slave_caps;
549
550 op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
551 slave_caps = QUERY_FUNC_CAP_SUPPORTS_VST_QINQ |
552 QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
553 in_modifier = op_modifier ? gen_or_port : slave_caps;
554
555 mailbox = mlx4_alloc_cmd_mailbox(dev);
556 if (IS_ERR(mailbox))
557 return PTR_ERR(mailbox);
558
559 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, op_modifier,
560 MLX4_CMD_QUERY_FUNC_CAP,
561 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
562 if (err)
563 goto out;
564
565 outbox = mailbox->buf;
566
567 if (!op_modifier) {
568 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
569 if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
570 mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
571 err = -EPROTONOSUPPORT;
572 goto out;
573 }
574 func_cap->flags = field;
575 quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
576
577 MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
578 func_cap->num_ports = field;
579
580 MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
581 func_cap->pf_context_behaviour = size;
582
583 if (quotas) {
584 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
585 func_cap->qp_quota = size & 0xFFFFFF;
586
587 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
588 func_cap->srq_quota = size & 0xFFFFFF;
589
590 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
591 func_cap->cq_quota = size & 0xFFFFFF;
592
593 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
594 func_cap->mpt_quota = size & 0xFFFFFF;
595
596 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
597 func_cap->mtt_quota = size & 0xFFFFFF;
598
599 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
600 func_cap->mcg_quota = size & 0xFFFFFF;
601
602 } else {
603 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
604 func_cap->qp_quota = size & 0xFFFFFF;
605
606 MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
607 func_cap->srq_quota = size & 0xFFFFFF;
608
609 MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
610 func_cap->cq_quota = size & 0xFFFFFF;
611
612 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
613 func_cap->mpt_quota = size & 0xFFFFFF;
614
615 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
616 func_cap->mtt_quota = size & 0xFFFFFF;
617
618 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
619 func_cap->mcg_quota = size & 0xFFFFFF;
620 }
621 MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
622 func_cap->max_eq = size & 0xFFFFFF;
623
624 MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
625 func_cap->reserved_eq = size & 0xFFFFFF;
626
627 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_RESD_LKEY) {
628 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
629 func_cap->reserved_lkey = size;
630 } else {
631 func_cap->reserved_lkey = 0;
632 }
633
634 func_cap->extra_flags = 0;
635
636 /* Mailbox data from 0x6c and onward should only be treated if
637 * QUERY_FUNC_CAP_FLAG_VALID_MAILBOX is set in func_cap->flags
638 */
639 if (func_cap->flags & QUERY_FUNC_CAP_FLAG_VALID_MAILBOX) {
640 MLX4_GET(size, outbox, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
641 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG)
642 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_BF_RES_QP;
643 if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG)
644 func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_A0_RES_QP;
645 }
646
647 goto out;
648 }
649
650 /* logical port query */
651 if (gen_or_port > dev->caps.num_ports) {
652 err = -EINVAL;
653 goto out;
654 }
655
656 MLX4_GET(func_cap->flags1, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
657 if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
658 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN) {
659 mlx4_err(dev, "VLAN is enforced on this port\n");
660 err = -EPROTONOSUPPORT;
661 goto out;
662 }
663
664 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
665 mlx4_err(dev, "Force mac is enabled on this port\n");
666 err = -EPROTONOSUPPORT;
667 goto out;
668 }
669 } else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
670 MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
671 if (field & QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID) {
672 mlx4_err(dev, "phy_wqe_gid is enforced on this ib port\n");
673 err = -EPROTONOSUPPORT;
674 goto out;
675 }
676 }
677
678 MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
679 func_cap->physical_port = field;
680 if (func_cap->physical_port != gen_or_port) {
681 err = -EINVAL;
682 goto out;
683 }
684
685 if (func_cap->flags1 & QUERY_FUNC_CAP_VF_ENABLE_QP0) {
686 MLX4_GET(qkey, outbox, QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
687 func_cap->spec_qps.qp0_qkey = qkey;
688 } else {
689 func_cap->spec_qps.qp0_qkey = 0;
690 }
691
692 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
693 func_cap->spec_qps.qp0_tunnel = size & 0xFFFFFF;
694
695 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
696 func_cap->spec_qps.qp0_proxy = size & 0xFFFFFF;
697
698 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
699 func_cap->spec_qps.qp1_tunnel = size & 0xFFFFFF;
700
701 MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
702 func_cap->spec_qps.qp1_proxy = size & 0xFFFFFF;
703
704 if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_NIC_INFO)
705 MLX4_GET(func_cap->phys_port_id, outbox,
706 QUERY_FUNC_CAP_PHYS_PORT_ID);
707
708 MLX4_GET(func_cap->flags0, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
709
710 /* All other resources are allocated by the master, but we still report
711 * 'num' and 'reserved' capabilities as follows:
712 * - num remains the maximum resource index
713 * - 'num - reserved' is the total available objects of a resource, but
714 * resource indices may be less than 'reserved'
715 * TODO: set per-resource quotas */
716
717 out:
718 mlx4_free_cmd_mailbox(dev, mailbox);
719
720 return err;
721 }
722
723 static void disable_unsupported_roce_caps(void *buf);
724
mlx4_QUERY_DEV_CAP(struct mlx4_dev * dev,struct mlx4_dev_cap * dev_cap)725 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
726 {
727 struct mlx4_cmd_mailbox *mailbox;
728 u32 *outbox;
729 u8 field;
730 u32 field32, flags, ext_flags;
731 u16 size;
732 u16 stat_rate;
733 int err;
734 int i;
735
736 #define QUERY_DEV_CAP_OUT_SIZE 0x100
737 #define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
738 #define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
739 #define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
740 #define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
741 #define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
742 #define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
743 #define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
744 #define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
745 #define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
746 #define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
747 #define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
748 #define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
749 #define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
750 #define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
751 #define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
752 #define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
753 #define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
754 #define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
755 #define QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET 0x26
756 #define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
757 #define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
758 #define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
759 #define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
760 #define QUERY_DEV_CAP_RSS_OFFSET 0x2e
761 #define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
762 #define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
763 #define QUERY_DEV_CAP_PORT_BEACON_OFFSET 0x34
764 #define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
765 #define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
766 #define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
767 #define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
768 #define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
769 #define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
770 #define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET 0x3e
771 #define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
772 #define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
773 #define QUERY_DEV_CAP_WOL_OFFSET 0x43
774 #define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
775 #define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
776 #define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
777 #define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
778 #define QUERY_DEV_CAP_BF_OFFSET 0x4c
779 #define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
780 #define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
781 #define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
782 #define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
783 #define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
784 #define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
785 #define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
786 #define QUERY_DEV_CAP_USER_MAC_EN_OFFSET 0x5C
787 #define QUERY_DEV_CAP_SVLAN_BY_QP_OFFSET 0x5D
788 #define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
789 #define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
790 #define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
791 #define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
792 #define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
793 #define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
794 #define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
795 #define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
796 #define QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET 0x70
797 #define QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET 0x70
798 #define QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET 0x74
799 #define QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET 0x76
800 #define QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET 0x77
801 #define QUERY_DEV_CAP_SL2VL_EVENT_OFFSET 0x78
802 #define QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE 0x7a
803 #define QUERY_DEV_CAP_ECN_QCN_VER_OFFSET 0x7b
804 #define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
805 #define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
806 #define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
807 #define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
808 #define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
809 #define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
810 #define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
811 #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
812 #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
813 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
814 #define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
815 #define QUERY_DEV_CAP_CONFIG_DEV_OFFSET 0x94
816 #define QUERY_DEV_CAP_PHV_EN_OFFSET 0x96
817 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
818 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
819 #define QUERY_DEV_CAP_ETH_BACKPL_OFFSET 0x9c
820 #define QUERY_DEV_CAP_DIAG_RPRT_PER_PORT 0x9c
821 #define QUERY_DEV_CAP_FW_REASSIGN_MAC 0x9d
822 #define QUERY_DEV_CAP_VXLAN 0x9e
823 #define QUERY_DEV_CAP_MAD_DEMUX_OFFSET 0xb0
824 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET 0xa8
825 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET 0xac
826 #define QUERY_DEV_CAP_MAP_CLOCK_TO_USER 0xc1
827 #define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET 0xcc
828 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET 0xd0
829 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET 0xd2
830 #define QUERY_DEV_CAP_HEALTH_BUFFER_ADDRESS_OFFSET 0xe4
831
832 dev_cap->flags2 = 0;
833 mailbox = mlx4_alloc_cmd_mailbox(dev);
834 if (IS_ERR(mailbox))
835 return PTR_ERR(mailbox);
836 outbox = mailbox->buf;
837
838 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
839 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
840 if (err)
841 goto out;
842
843 if (mlx4_is_mfunc(dev))
844 disable_unsupported_roce_caps(outbox);
845 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAP_CLOCK_TO_USER);
846 dev_cap->map_clock_to_user = field & 0x80;
847 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
848 dev_cap->reserved_qps = 1 << (field & 0xf);
849 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
850 dev_cap->max_qps = 1 << (field & 0x1f);
851 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
852 dev_cap->reserved_srqs = 1 << (field >> 4);
853 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
854 dev_cap->max_srqs = 1 << (field & 0x1f);
855 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
856 dev_cap->max_cq_sz = 1 << field;
857 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
858 dev_cap->reserved_cqs = 1 << (field & 0xf);
859 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
860 dev_cap->max_cqs = 1 << (field & 0x1f);
861 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
862 dev_cap->max_mpts = 1 << (field & 0x3f);
863 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
864 dev_cap->reserved_eqs = 1 << (field & 0xf);
865 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
866 dev_cap->max_eqs = 1 << (field & 0xf);
867 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
868 dev_cap->reserved_mtts = 1 << (field >> 4);
869 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
870 dev_cap->reserved_mrws = 1 << (field & 0xf);
871 MLX4_GET(size, outbox, QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET);
872 dev_cap->num_sys_eqs = size & 0xfff;
873 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
874 dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
875 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
876 dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
877 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
878 field &= 0x1f;
879 if (!field)
880 dev_cap->max_gso_sz = 0;
881 else
882 dev_cap->max_gso_sz = 1 << field;
883
884 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSS_OFFSET);
885 if (field & 0x20)
886 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_XOR;
887 if (field & 0x10)
888 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_TOP;
889 field &= 0xf;
890 if (field) {
891 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS;
892 dev_cap->max_rss_tbl_sz = 1 << field;
893 } else
894 dev_cap->max_rss_tbl_sz = 0;
895 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
896 dev_cap->max_rdma_global = 1 << (field & 0x3f);
897 MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
898 dev_cap->local_ca_ack_delay = field & 0x1f;
899 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
900 dev_cap->num_ports = field & 0xf;
901 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
902 dev_cap->max_msg_sz = 1 << (field & 0x1f);
903 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_FLOWSTATS_COUNTERS_OFFSET);
904 if (field & 0x10)
905 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN;
906 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
907 if (field & 0x80)
908 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FS_EN;
909 dev_cap->fs_log_max_ucast_qp_range_size = field & 0x1f;
910 if (field & 0x20)
911 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER;
912 MLX4_GET(field, outbox, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
913 if (field & 0x80)
914 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_BEACON;
915 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
916 if (field & 0x80)
917 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_IPOIB;
918 MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET);
919 dev_cap->fs_max_num_qp_per_entry = field;
920 MLX4_GET(field, outbox, QUERY_DEV_CAP_SL2VL_EVENT_OFFSET);
921 if (field & (1 << 5))
922 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT;
923 MLX4_GET(field, outbox, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
924 if (field & 0x1)
925 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QCN;
926 MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
927 dev_cap->stat_rate_support = stat_rate;
928 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
929 if (field & 0x80)
930 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;
931 MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
932 MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
933 dev_cap->flags = flags | (u64)ext_flags << 32;
934 MLX4_GET(field, outbox, QUERY_DEV_CAP_WOL_OFFSET);
935 dev_cap->wol_port[1] = !!(field & 0x20);
936 dev_cap->wol_port[2] = !!(field & 0x40);
937 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
938 dev_cap->reserved_uars = field >> 4;
939 MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
940 dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
941 MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
942 dev_cap->min_page_sz = 1 << field;
943
944 MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
945 if (field & 0x80) {
946 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
947 dev_cap->bf_reg_size = 1 << (field & 0x1f);
948 MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
949 if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
950 field = 3;
951 dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
952 } else {
953 dev_cap->bf_reg_size = 0;
954 }
955
956 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
957 dev_cap->max_sq_sg = field;
958 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
959 dev_cap->max_sq_desc_sz = size;
960
961 MLX4_GET(field, outbox, QUERY_DEV_CAP_USER_MAC_EN_OFFSET);
962 if (field & (1 << 2))
963 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_USER_MAC_EN;
964 MLX4_GET(field, outbox, QUERY_DEV_CAP_SVLAN_BY_QP_OFFSET);
965 if (field & 0x1)
966 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP;
967 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
968 dev_cap->max_qp_per_mcg = 1 << field;
969 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
970 dev_cap->reserved_mgms = field & 0xf;
971 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
972 dev_cap->max_mcgs = 1 << field;
973 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
974 dev_cap->reserved_pds = field >> 4;
975 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
976 dev_cap->max_pds = 1 << (field & 0x3f);
977 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
978 dev_cap->reserved_xrcds = field >> 4;
979 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
980 dev_cap->max_xrcds = 1 << (field & 0x1f);
981
982 MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
983 dev_cap->rdmarc_entry_sz = size;
984 MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
985 dev_cap->qpc_entry_sz = size;
986 MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
987 dev_cap->aux_entry_sz = size;
988 MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
989 dev_cap->altc_entry_sz = size;
990 MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
991 dev_cap->eqc_entry_sz = size;
992 MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
993 dev_cap->cqc_entry_sz = size;
994 MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
995 dev_cap->srq_entry_sz = size;
996 MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
997 dev_cap->cmpt_entry_sz = size;
998 MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
999 dev_cap->mtt_entry_sz = size;
1000 MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
1001 dev_cap->dmpt_entry_sz = size;
1002
1003 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
1004 dev_cap->max_srq_sz = 1 << field;
1005 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
1006 dev_cap->max_qp_sz = 1 << field;
1007 MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
1008 dev_cap->resize_srq = field & 1;
1009 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
1010 dev_cap->max_rq_sg = field;
1011 MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
1012 dev_cap->max_rq_desc_sz = size;
1013 MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1014 if (field & (1 << 4))
1015 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QOS_VPP;
1016 if (field & (1 << 5))
1017 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL;
1018 if (field & (1 << 6))
1019 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
1020 if (field & (1 << 7))
1021 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
1022 MLX4_GET(dev_cap->bmme_flags, outbox,
1023 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1024 if (dev_cap->bmme_flags & MLX4_FLAG_ROCE_V1_V2)
1025 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ROCE_V1_V2;
1026 if (dev_cap->bmme_flags & MLX4_FLAG_PORT_REMAP)
1027 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_REMAP;
1028 MLX4_GET(field, outbox, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1029 if (field & 0x20)
1030 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CONFIG_DEV;
1031 if (field & (1 << 2))
1032 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
1033 MLX4_GET(field, outbox, QUERY_DEV_CAP_PHV_EN_OFFSET);
1034 if (field & 0x80)
1035 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PHV_EN;
1036 if (field & 0x40)
1037 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN;
1038
1039 MLX4_GET(dev_cap->reserved_lkey, outbox,
1040 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
1041 MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETH_BACKPL_OFFSET);
1042 if (field32 & (1 << 0))
1043 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
1044 if (field32 & (1 << 7))
1045 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT;
1046 if (field32 & (1 << 8))
1047 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DRIVER_VERSION_TO_FW;
1048 MLX4_GET(field32, outbox, QUERY_DEV_CAP_DIAG_RPRT_PER_PORT);
1049 if (field32 & (1 << 17))
1050 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT;
1051 MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
1052 if (field & 1<<6)
1053 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;
1054 MLX4_GET(field, outbox, QUERY_DEV_CAP_VXLAN);
1055 if (field & 1<<3)
1056 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS;
1057 if (field & (1 << 5))
1058 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
1059 MLX4_GET(dev_cap->max_icm_sz, outbox,
1060 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
1061 if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1062 MLX4_GET(dev_cap->max_counters, outbox,
1063 QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
1064
1065 MLX4_GET(field32, outbox,
1066 QUERY_DEV_CAP_MAD_DEMUX_OFFSET);
1067 if (field32 & (1 << 0))
1068 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_MAD_DEMUX;
1069
1070 MLX4_GET(dev_cap->dmfs_high_rate_qpn_base, outbox,
1071 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET);
1072 dev_cap->dmfs_high_rate_qpn_base &= MGM_QPN_MASK;
1073 MLX4_GET(dev_cap->dmfs_high_rate_qpn_range, outbox,
1074 QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET);
1075 dev_cap->dmfs_high_rate_qpn_range &= MGM_QPN_MASK;
1076
1077 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
1078 dev_cap->rl_caps.num_rates = size;
1079 if (dev_cap->rl_caps.num_rates) {
1080 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT;
1081 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET);
1082 dev_cap->rl_caps.max_val = size & 0xfff;
1083 dev_cap->rl_caps.max_unit = size >> 14;
1084 MLX4_GET(size, outbox, QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET);
1085 dev_cap->rl_caps.min_val = size & 0xfff;
1086 dev_cap->rl_caps.min_unit = size >> 14;
1087 }
1088
1089 MLX4_GET(dev_cap->health_buffer_addrs, outbox,
1090 QUERY_DEV_CAP_HEALTH_BUFFER_ADDRESS_OFFSET);
1091
1092 MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1093 if (field32 & (1 << 16))
1094 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
1095 if (field32 & (1 << 18))
1096 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP_SRC_CHECK_LB;
1097 if (field32 & (1 << 19))
1098 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_LB_SRC_CHK;
1099 if (field32 & (1 << 26))
1100 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
1101 if (field32 & (1 << 20))
1102 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FSM;
1103 if (field32 & (1 << 21))
1104 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_80_VFS;
1105 if (field32 & (1 << 23))
1106 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SW_CQ_INIT;
1107
1108 for (i = 1; i <= dev_cap->num_ports; i++) {
1109 err = mlx4_QUERY_PORT(dev, i, dev_cap->port_cap + i);
1110 if (err)
1111 goto out;
1112 }
1113
1114 /*
1115 * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
1116 * we can't use any EQs whose doorbell falls on that page,
1117 * even if the EQ itself isn't reserved.
1118 */
1119 if (dev_cap->num_sys_eqs == 0)
1120 dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
1121 dev_cap->reserved_eqs);
1122 else
1123 dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
1124
1125 out:
1126 mlx4_free_cmd_mailbox(dev, mailbox);
1127 return err;
1128 }
1129
mlx4_dev_cap_dump(struct mlx4_dev * dev,struct mlx4_dev_cap * dev_cap)1130 void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
1131 {
1132 if (dev_cap->bf_reg_size > 0)
1133 mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
1134 dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
1135 else
1136 mlx4_dbg(dev, "BlueFlame not available\n");
1137
1138 mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
1139 dev_cap->bmme_flags, dev_cap->reserved_lkey);
1140 mlx4_dbg(dev, "Max ICM size %lld MB\n",
1141 (unsigned long long) dev_cap->max_icm_sz >> 20);
1142 mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
1143 dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
1144 mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
1145 dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
1146 mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
1147 dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
1148 mlx4_dbg(dev, "Num sys EQs: %d, max EQs: %d, reserved EQs: %d, entry size: %d\n",
1149 dev_cap->num_sys_eqs, dev_cap->max_eqs, dev_cap->reserved_eqs,
1150 dev_cap->eqc_entry_sz);
1151 mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
1152 dev_cap->reserved_mrws, dev_cap->reserved_mtts);
1153 mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
1154 dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
1155 mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
1156 dev_cap->max_pds, dev_cap->reserved_mgms);
1157 mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
1158 dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
1159 mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
1160 dev_cap->local_ca_ack_delay, 128 << dev_cap->port_cap[1].ib_mtu,
1161 dev_cap->port_cap[1].max_port_width);
1162 mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
1163 dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
1164 mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
1165 dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
1166 mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
1167 mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
1168 mlx4_dbg(dev, "Max RSS Table size: %d\n", dev_cap->max_rss_tbl_sz);
1169 mlx4_dbg(dev, "DMFS high rate steer QPn base: %d\n",
1170 dev_cap->dmfs_high_rate_qpn_base);
1171 mlx4_dbg(dev, "DMFS high rate steer QPn range: %d\n",
1172 dev_cap->dmfs_high_rate_qpn_range);
1173
1174 if (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT) {
1175 struct mlx4_rate_limit_caps *rl_caps = &dev_cap->rl_caps;
1176
1177 mlx4_dbg(dev, "QP Rate-Limit: #rates %d, unit/val max %d/%d, min %d/%d\n",
1178 rl_caps->num_rates, rl_caps->max_unit, rl_caps->max_val,
1179 rl_caps->min_unit, rl_caps->min_val);
1180 }
1181
1182 dump_dev_cap_flags(dev, dev_cap->flags);
1183 dump_dev_cap_flags2(dev, dev_cap->flags2);
1184 }
1185
mlx4_QUERY_PORT(struct mlx4_dev * dev,int port,struct mlx4_port_cap * port_cap)1186 int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap)
1187 {
1188 struct mlx4_cmd_mailbox *mailbox;
1189 u32 *outbox;
1190 u8 field;
1191 u32 field32;
1192 int err;
1193
1194 mailbox = mlx4_alloc_cmd_mailbox(dev);
1195 if (IS_ERR(mailbox))
1196 return PTR_ERR(mailbox);
1197 outbox = mailbox->buf;
1198
1199 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
1200 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1201 MLX4_CMD_TIME_CLASS_A,
1202 MLX4_CMD_NATIVE);
1203
1204 if (err)
1205 goto out;
1206
1207 MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
1208 port_cap->max_vl = field >> 4;
1209 MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
1210 port_cap->ib_mtu = field >> 4;
1211 port_cap->max_port_width = field & 0xf;
1212 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
1213 port_cap->max_gids = 1 << (field & 0xf);
1214 MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
1215 port_cap->max_pkeys = 1 << (field & 0xf);
1216 } else {
1217 #define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
1218 #define QUERY_PORT_MTU_OFFSET 0x01
1219 #define QUERY_PORT_ETH_MTU_OFFSET 0x02
1220 #define QUERY_PORT_WIDTH_OFFSET 0x06
1221 #define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
1222 #define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
1223 #define QUERY_PORT_MAX_VL_OFFSET 0x0b
1224 #define QUERY_PORT_MAC_OFFSET 0x10
1225 #define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
1226 #define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
1227 #define QUERY_PORT_TRANS_CODE_OFFSET 0x20
1228
1229 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0, MLX4_CMD_QUERY_PORT,
1230 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1231 if (err)
1232 goto out;
1233
1234 MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1235 port_cap->link_state = (field & 0x80) >> 7;
1236 port_cap->supported_port_types = field & 3;
1237 port_cap->suggested_type = (field >> 3) & 1;
1238 port_cap->default_sense = (field >> 4) & 1;
1239 port_cap->dmfs_optimized_state = (field >> 5) & 1;
1240 MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
1241 port_cap->ib_mtu = field & 0xf;
1242 MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
1243 port_cap->max_port_width = field & 0xf;
1244 MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
1245 port_cap->max_gids = 1 << (field >> 4);
1246 port_cap->max_pkeys = 1 << (field & 0xf);
1247 MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
1248 port_cap->max_vl = field & 0xf;
1249 port_cap->max_tc_eth = field >> 4;
1250 MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
1251 port_cap->log_max_macs = field & 0xf;
1252 port_cap->log_max_vlans = field >> 4;
1253 MLX4_GET(port_cap->eth_mtu, outbox, QUERY_PORT_ETH_MTU_OFFSET);
1254 MLX4_GET(port_cap->def_mac, outbox, QUERY_PORT_MAC_OFFSET);
1255 MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
1256 port_cap->trans_type = field32 >> 24;
1257 port_cap->vendor_oui = field32 & 0xffffff;
1258 MLX4_GET(port_cap->wavelength, outbox, QUERY_PORT_WAVELENGTH_OFFSET);
1259 MLX4_GET(port_cap->trans_code, outbox, QUERY_PORT_TRANS_CODE_OFFSET);
1260 }
1261
1262 out:
1263 mlx4_free_cmd_mailbox(dev, mailbox);
1264 return err;
1265 }
1266
1267 #define DEV_CAP_EXT_2_FLAG_PFC_COUNTERS (1 << 28)
1268 #define DEV_CAP_EXT_2_FLAG_VLAN_CONTROL (1 << 26)
1269 #define DEV_CAP_EXT_2_FLAG_80_VFS (1 << 21)
1270 #define DEV_CAP_EXT_2_FLAG_FSM (1 << 20)
1271
mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1272 int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
1273 struct mlx4_vhcr *vhcr,
1274 struct mlx4_cmd_mailbox *inbox,
1275 struct mlx4_cmd_mailbox *outbox,
1276 struct mlx4_cmd_info *cmd)
1277 {
1278 u64 flags;
1279 int err = 0;
1280 u8 field;
1281 u16 field16;
1282 u32 bmme_flags, field32;
1283 int real_port;
1284 int slave_port;
1285 int first_port;
1286 struct mlx4_active_ports actv_ports;
1287
1288 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
1289 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1290 if (err)
1291 return err;
1292
1293 disable_unsupported_roce_caps(outbox->buf);
1294 /* add port mng change event capability and disable mw type 1
1295 * unconditionally to slaves
1296 */
1297 MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1298 flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
1299 flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
1300 actv_ports = mlx4_get_active_ports(dev, slave);
1301 first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
1302 for (slave_port = 0, real_port = first_port;
1303 real_port < first_port +
1304 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
1305 ++real_port, ++slave_port) {
1306 if (flags & (MLX4_DEV_CAP_FLAG_WOL_PORT1 << real_port))
1307 flags |= MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port;
1308 else
1309 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1310 }
1311 for (; slave_port < dev->caps.num_ports; ++slave_port)
1312 flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
1313
1314 /* Not exposing RSS IP fragments to guests */
1315 flags &= ~MLX4_DEV_CAP_FLAG_RSS_IP_FRAG;
1316 MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1317
1318 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VL_PORT_OFFSET);
1319 field &= ~0x0F;
1320 field |= bitmap_weight(actv_ports.ports, dev->caps.num_ports) & 0x0F;
1321 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VL_PORT_OFFSET);
1322
1323 /* For guests, disable timestamp */
1324 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1325 field &= 0x7f;
1326 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
1327
1328 /* For guests, disable vxlan tunneling and QoS support */
1329 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VXLAN);
1330 field &= 0xd7;
1331 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VXLAN);
1332
1333 /* For guests, disable port BEACON */
1334 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1335 field &= 0x7f;
1336 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_PORT_BEACON_OFFSET);
1337
1338 /* For guests, report Blueflame disabled */
1339 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
1340 field &= 0x7f;
1341 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
1342
1343 /* For guests, disable mw type 2 and port remap*/
1344 MLX4_GET(bmme_flags, outbox->buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1345 bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN;
1346 bmme_flags &= ~MLX4_FLAG_PORT_REMAP;
1347 MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1348
1349 /* turn off device-managed steering capability if not enabled */
1350 if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
1351 MLX4_GET(field, outbox->buf,
1352 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1353 field &= 0x7f;
1354 MLX4_PUT(outbox->buf, field,
1355 QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
1356 }
1357
1358 /* turn off ipoib managed steering for guests */
1359 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1360 field &= ~0x80;
1361 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
1362
1363 /* turn off host side virt features (VST, FSM, etc) for guests */
1364 MLX4_GET(field32, outbox->buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1365 field32 &= ~(DEV_CAP_EXT_2_FLAG_VLAN_CONTROL | DEV_CAP_EXT_2_FLAG_80_VFS |
1366 DEV_CAP_EXT_2_FLAG_FSM | DEV_CAP_EXT_2_FLAG_PFC_COUNTERS);
1367 MLX4_PUT(outbox->buf, field32, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1368
1369 /* turn off QCN for guests */
1370 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1371 field &= 0xfe;
1372 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_ECN_QCN_VER_OFFSET);
1373
1374 /* turn off QP max-rate limiting for guests */
1375 field16 = 0;
1376 MLX4_PUT(outbox->buf, field16, QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET);
1377
1378 /* turn off QoS per VF support for guests */
1379 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1380 field &= 0xef;
1381 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
1382
1383 /* turn off ignore FCS feature for guests */
1384 MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1385 field &= 0xfb;
1386 MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
1387
1388 return 0;
1389 }
1390
disable_unsupported_roce_caps(void * buf)1391 static void disable_unsupported_roce_caps(void *buf)
1392 {
1393 u32 flags;
1394
1395 MLX4_GET(flags, buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1396 flags &= ~(1UL << 31);
1397 MLX4_PUT(buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
1398 MLX4_GET(flags, buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1399 flags &= ~(1UL << 24);
1400 MLX4_PUT(buf, flags, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
1401 MLX4_GET(flags, buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1402 flags &= ~(MLX4_FLAG_ROCE_V1_V2);
1403 MLX4_PUT(buf, flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
1404 }
1405
mlx4_QUERY_PORT_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1406 int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
1407 struct mlx4_vhcr *vhcr,
1408 struct mlx4_cmd_mailbox *inbox,
1409 struct mlx4_cmd_mailbox *outbox,
1410 struct mlx4_cmd_info *cmd)
1411 {
1412 struct mlx4_priv *priv = mlx4_priv(dev);
1413 u64 def_mac;
1414 u8 port_type;
1415 u16 short_field;
1416 int err;
1417 int admin_link_state;
1418 int port = mlx4_slave_convert_port(dev, slave,
1419 vhcr->in_modifier & 0xFF);
1420
1421 #define MLX4_VF_PORT_NO_LINK_SENSE_MASK 0xE0
1422 #define MLX4_PORT_LINK_UP_MASK 0x80
1423 #define QUERY_PORT_CUR_MAX_PKEY_OFFSET 0x0c
1424 #define QUERY_PORT_CUR_MAX_GID_OFFSET 0x0e
1425
1426 if (port < 0)
1427 return -EINVAL;
1428
1429 /* Protect against untrusted guests: enforce that this is the
1430 * QUERY_PORT general query.
1431 */
1432 if (vhcr->op_modifier || vhcr->in_modifier & ~0xFF)
1433 return -EINVAL;
1434
1435 vhcr->in_modifier = port;
1436
1437 err = mlx4_cmd_box(dev, 0, outbox->dma, vhcr->in_modifier, 0,
1438 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1439 MLX4_CMD_NATIVE);
1440
1441 if (!err && dev->caps.function != slave) {
1442 def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac;
1443 MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET);
1444
1445 /* get port type - currently only eth is enabled */
1446 MLX4_GET(port_type, outbox->buf,
1447 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1448
1449 /* No link sensing allowed */
1450 port_type &= MLX4_VF_PORT_NO_LINK_SENSE_MASK;
1451 /* set port type to currently operating port type */
1452 port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
1453
1454 admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
1455 if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
1456 port_type |= MLX4_PORT_LINK_UP_MASK;
1457 else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
1458 port_type &= ~MLX4_PORT_LINK_UP_MASK;
1459 else if (IFLA_VF_LINK_STATE_AUTO == admin_link_state && mlx4_is_bonded(dev)) {
1460 int other_port = (port == 1) ? 2 : 1;
1461 struct mlx4_port_cap port_cap;
1462
1463 err = mlx4_QUERY_PORT(dev, other_port, &port_cap);
1464 if (err)
1465 goto out;
1466 port_type |= (port_cap.link_state << 7);
1467 }
1468
1469 MLX4_PUT(outbox->buf, port_type,
1470 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
1471
1472 if (dev->caps.port_type[vhcr->in_modifier] == MLX4_PORT_TYPE_ETH)
1473 short_field = mlx4_get_slave_num_gids(dev, slave, port);
1474 else
1475 short_field = 1; /* slave max gids */
1476 MLX4_PUT(outbox->buf, short_field,
1477 QUERY_PORT_CUR_MAX_GID_OFFSET);
1478
1479 short_field = dev->caps.pkey_table_len[vhcr->in_modifier];
1480 MLX4_PUT(outbox->buf, short_field,
1481 QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1482 }
1483 out:
1484 return err;
1485 }
1486
mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev * dev,u8 port,int * gid_tbl_len,int * pkey_tbl_len)1487 int mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev *dev, u8 port,
1488 int *gid_tbl_len, int *pkey_tbl_len)
1489 {
1490 struct mlx4_cmd_mailbox *mailbox;
1491 u32 *outbox;
1492 u16 field;
1493 int err;
1494
1495 mailbox = mlx4_alloc_cmd_mailbox(dev);
1496 if (IS_ERR(mailbox))
1497 return PTR_ERR(mailbox);
1498
1499 err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0,
1500 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
1501 MLX4_CMD_WRAPPED);
1502 if (err)
1503 goto out;
1504
1505 outbox = mailbox->buf;
1506
1507 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_GID_OFFSET);
1508 *gid_tbl_len = field;
1509
1510 MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_PKEY_OFFSET);
1511 *pkey_tbl_len = field;
1512
1513 out:
1514 mlx4_free_cmd_mailbox(dev, mailbox);
1515 return err;
1516 }
1517 EXPORT_SYMBOL(mlx4_get_slave_pkey_gid_tbl_len);
1518
mlx4_map_cmd(struct mlx4_dev * dev,u16 op,struct mlx4_icm * icm,u64 virt)1519 int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
1520 {
1521 struct mlx4_cmd_mailbox *mailbox;
1522 struct mlx4_icm_iter iter;
1523 __be64 *pages;
1524 int lg;
1525 int nent = 0;
1526 int i;
1527 int err = 0;
1528 int ts = 0, tc = 0;
1529
1530 mailbox = mlx4_alloc_cmd_mailbox(dev);
1531 if (IS_ERR(mailbox))
1532 return PTR_ERR(mailbox);
1533 pages = mailbox->buf;
1534
1535 for (mlx4_icm_first(icm, &iter);
1536 !mlx4_icm_last(&iter);
1537 mlx4_icm_next(&iter)) {
1538 /*
1539 * We have to pass pages that are aligned to their
1540 * size, so find the least significant 1 in the
1541 * address or size and use that as our log2 size.
1542 */
1543 lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
1544 if (lg < MLX4_ICM_PAGE_SHIFT) {
1545 mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx)\n",
1546 MLX4_ICM_PAGE_SIZE,
1547 (unsigned long long) mlx4_icm_addr(&iter),
1548 mlx4_icm_size(&iter));
1549 err = -EINVAL;
1550 goto out;
1551 }
1552
1553 for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
1554 if (virt != -1) {
1555 pages[nent * 2] = cpu_to_be64(virt);
1556 virt += 1ULL << lg;
1557 }
1558
1559 pages[nent * 2 + 1] =
1560 cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
1561 (lg - MLX4_ICM_PAGE_SHIFT));
1562 ts += 1 << (lg - 10);
1563 ++tc;
1564
1565 if (++nent == MLX4_MAILBOX_SIZE / 16) {
1566 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1567 MLX4_CMD_TIME_CLASS_B,
1568 MLX4_CMD_NATIVE);
1569 if (err)
1570 goto out;
1571 nent = 0;
1572 }
1573 }
1574 }
1575
1576 if (nent)
1577 err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
1578 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1579 if (err)
1580 goto out;
1581
1582 switch (op) {
1583 case MLX4_CMD_MAP_FA:
1584 mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW\n", tc, ts);
1585 break;
1586 case MLX4_CMD_MAP_ICM_AUX:
1587 mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux\n", tc, ts);
1588 break;
1589 case MLX4_CMD_MAP_ICM:
1590 mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM\n",
1591 tc, ts, (unsigned long long) virt - (ts << 10));
1592 break;
1593 }
1594
1595 out:
1596 mlx4_free_cmd_mailbox(dev, mailbox);
1597 return err;
1598 }
1599
mlx4_MAP_FA(struct mlx4_dev * dev,struct mlx4_icm * icm)1600 int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
1601 {
1602 return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
1603 }
1604
mlx4_UNMAP_FA(struct mlx4_dev * dev)1605 int mlx4_UNMAP_FA(struct mlx4_dev *dev)
1606 {
1607 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA,
1608 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1609 }
1610
1611
mlx4_RUN_FW(struct mlx4_dev * dev)1612 int mlx4_RUN_FW(struct mlx4_dev *dev)
1613 {
1614 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW,
1615 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1616 }
1617
mlx4_QUERY_FW(struct mlx4_dev * dev)1618 int mlx4_QUERY_FW(struct mlx4_dev *dev)
1619 {
1620 struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
1621 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
1622 struct mlx4_cmd_mailbox *mailbox;
1623 u32 *outbox;
1624 int err = 0;
1625 u64 fw_ver;
1626 u16 cmd_if_rev;
1627 u8 lg;
1628
1629 #define QUERY_FW_OUT_SIZE 0x100
1630 #define QUERY_FW_VER_OFFSET 0x00
1631 #define QUERY_FW_PPF_ID 0x09
1632 #define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
1633 #define QUERY_FW_MAX_CMD_OFFSET 0x0f
1634 #define QUERY_FW_ERR_START_OFFSET 0x30
1635 #define QUERY_FW_ERR_SIZE_OFFSET 0x38
1636 #define QUERY_FW_ERR_BAR_OFFSET 0x3c
1637
1638 #define QUERY_FW_SIZE_OFFSET 0x00
1639 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
1640 #define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
1641
1642 #define QUERY_FW_COMM_BASE_OFFSET 0x40
1643 #define QUERY_FW_COMM_BAR_OFFSET 0x48
1644
1645 #define QUERY_FW_CLOCK_OFFSET 0x50
1646 #define QUERY_FW_CLOCK_BAR 0x58
1647
1648 mailbox = mlx4_alloc_cmd_mailbox(dev);
1649 if (IS_ERR(mailbox))
1650 return PTR_ERR(mailbox);
1651 outbox = mailbox->buf;
1652
1653 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1654 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1655 if (err)
1656 goto out;
1657
1658 MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
1659 /*
1660 * FW subminor version is at more significant bits than minor
1661 * version, so swap here.
1662 */
1663 dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
1664 ((fw_ver & 0xffff0000ull) >> 16) |
1665 ((fw_ver & 0x0000ffffull) << 16);
1666
1667 MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
1668 dev->caps.function = lg;
1669
1670 if (mlx4_is_slave(dev))
1671 goto out;
1672
1673
1674 MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
1675 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
1676 cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
1677 mlx4_err(dev, "Installed FW has unsupported command interface revision %d\n",
1678 cmd_if_rev);
1679 mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
1680 (int) (dev->caps.fw_ver >> 32),
1681 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1682 (int) dev->caps.fw_ver & 0xffff);
1683 mlx4_err(dev, "This driver version supports only revisions %d to %d\n",
1684 MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
1685 err = -ENODEV;
1686 goto out;
1687 }
1688
1689 if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
1690 dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
1691
1692 MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
1693 cmd->max_cmds = 1 << lg;
1694
1695 mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
1696 (int) (dev->caps.fw_ver >> 32),
1697 (int) (dev->caps.fw_ver >> 16) & 0xffff,
1698 (int) dev->caps.fw_ver & 0xffff,
1699 cmd_if_rev, cmd->max_cmds);
1700
1701 MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
1702 MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
1703 MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
1704 fw->catas_bar = (fw->catas_bar >> 6) * 2;
1705
1706 mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
1707 (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
1708
1709 MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
1710 MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
1711 MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
1712 fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
1713
1714 MLX4_GET(fw->comm_base, outbox, QUERY_FW_COMM_BASE_OFFSET);
1715 MLX4_GET(fw->comm_bar, outbox, QUERY_FW_COMM_BAR_OFFSET);
1716 fw->comm_bar = (fw->comm_bar >> 6) * 2;
1717 mlx4_dbg(dev, "Communication vector bar:%d offset:0x%llx\n",
1718 fw->comm_bar, fw->comm_base);
1719 mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
1720
1721 MLX4_GET(fw->clock_offset, outbox, QUERY_FW_CLOCK_OFFSET);
1722 MLX4_GET(fw->clock_bar, outbox, QUERY_FW_CLOCK_BAR);
1723 fw->clock_bar = (fw->clock_bar >> 6) * 2;
1724 mlx4_dbg(dev, "Internal clock bar:%d offset:0x%llx\n",
1725 fw->clock_bar, fw->clock_offset);
1726
1727 /*
1728 * Round up number of system pages needed in case
1729 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
1730 */
1731 fw->fw_pages =
1732 ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
1733 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
1734
1735 mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
1736 (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
1737
1738 out:
1739 mlx4_free_cmd_mailbox(dev, mailbox);
1740 return err;
1741 }
1742
mlx4_QUERY_FW_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)1743 int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
1744 struct mlx4_vhcr *vhcr,
1745 struct mlx4_cmd_mailbox *inbox,
1746 struct mlx4_cmd_mailbox *outbox,
1747 struct mlx4_cmd_info *cmd)
1748 {
1749 u8 *outbuf;
1750 int err;
1751
1752 outbuf = outbox->buf;
1753 err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
1754 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1755 if (err)
1756 return err;
1757
1758 /* for slaves, set pci PPF ID to invalid and zero out everything
1759 * else except FW version */
1760 outbuf[0] = outbuf[1] = 0;
1761 memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
1762 outbuf[QUERY_FW_PPF_ID] = MLX4_INVALID_SLAVE_ID;
1763
1764 return 0;
1765 }
1766
get_board_id(void * vsd,char * board_id)1767 static void get_board_id(void *vsd, char *board_id)
1768 {
1769 int i;
1770
1771 #define VSD_OFFSET_SIG1 0x00
1772 #define VSD_OFFSET_SIG2 0xde
1773 #define VSD_OFFSET_MLX_BOARD_ID 0xd0
1774 #define VSD_OFFSET_TS_BOARD_ID 0x20
1775
1776 #define VSD_SIGNATURE_TOPSPIN 0x5ad
1777
1778 memset(board_id, 0, MLX4_BOARD_ID_LEN);
1779
1780 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
1781 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
1782 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
1783 } else {
1784 /*
1785 * The board ID is a string but the firmware byte
1786 * swaps each 4-byte word before passing it back to
1787 * us. Therefore we need to swab it before printing.
1788 */
1789 u32 *bid_u32 = (u32 *)board_id;
1790
1791 for (i = 0; i < 4; ++i) {
1792 u32 *addr;
1793 u32 val;
1794
1795 addr = (u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4);
1796 val = get_unaligned(addr);
1797 val = swab32(val);
1798 put_unaligned(val, &bid_u32[i]);
1799 }
1800 }
1801 }
1802
mlx4_QUERY_ADAPTER(struct mlx4_dev * dev,struct mlx4_adapter * adapter)1803 int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
1804 {
1805 struct mlx4_cmd_mailbox *mailbox;
1806 u32 *outbox;
1807 int err;
1808
1809 #define QUERY_ADAPTER_OUT_SIZE 0x100
1810 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
1811 #define QUERY_ADAPTER_VSD_OFFSET 0x20
1812
1813 mailbox = mlx4_alloc_cmd_mailbox(dev);
1814 if (IS_ERR(mailbox))
1815 return PTR_ERR(mailbox);
1816 outbox = mailbox->buf;
1817
1818 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
1819 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1820 if (err)
1821 goto out;
1822
1823 MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1824
1825 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
1826 adapter->board_id);
1827
1828 out:
1829 mlx4_free_cmd_mailbox(dev, mailbox);
1830 return err;
1831 }
1832
mlx4_INIT_HCA(struct mlx4_dev * dev,struct mlx4_init_hca_param * param)1833 int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
1834 {
1835 struct mlx4_cmd_mailbox *mailbox;
1836 __be32 *inbox;
1837 int err;
1838 static const u8 a0_dmfs_hw_steering[] = {
1839 [MLX4_STEERING_DMFS_A0_DEFAULT] = 0,
1840 [MLX4_STEERING_DMFS_A0_DYNAMIC] = 1,
1841 [MLX4_STEERING_DMFS_A0_STATIC] = 2,
1842 [MLX4_STEERING_DMFS_A0_DISABLE] = 3
1843 };
1844
1845 #define INIT_HCA_IN_SIZE 0x200
1846 #define INIT_HCA_VERSION_OFFSET 0x000
1847 #define INIT_HCA_VERSION 2
1848 #define INIT_HCA_VXLAN_OFFSET 0x0c
1849 #define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
1850 #define INIT_HCA_FLAGS_OFFSET 0x014
1851 #define INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET 0x018
1852 #define INIT_HCA_QPC_OFFSET 0x020
1853 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
1854 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
1855 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
1856 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
1857 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
1858 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
1859 #define INIT_HCA_EQE_CQE_OFFSETS (INIT_HCA_QPC_OFFSET + 0x38)
1860 #define INIT_HCA_EQE_CQE_STRIDE_OFFSET (INIT_HCA_QPC_OFFSET + 0x3b)
1861 #define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
1862 #define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
1863 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
1864 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
1865 #define INIT_HCA_NUM_SYS_EQS_OFFSET (INIT_HCA_QPC_OFFSET + 0x6a)
1866 #define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
1867 #define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
1868 #define INIT_HCA_MCAST_OFFSET 0x0c0
1869 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
1870 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x13)
1871 #define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x17)
1872 #define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
1873 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1874 #define INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN 0x6
1875 #define INIT_HCA_DRIVER_VERSION_OFFSET 0x140
1876 #define INIT_HCA_DRIVER_VERSION_SZ 0x40
1877 #define INIT_HCA_FS_PARAM_OFFSET 0x1d0
1878 #define INIT_HCA_FS_BASE_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x00)
1879 #define INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x13)
1880 #define INIT_HCA_FS_A0_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x18)
1881 #define INIT_HCA_FS_LOG_TABLE_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x1b)
1882 #define INIT_HCA_FS_ETH_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x21)
1883 #define INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x22)
1884 #define INIT_HCA_FS_IB_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x25)
1885 #define INIT_HCA_FS_IB_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x26)
1886 #define INIT_HCA_TPT_OFFSET 0x0f0
1887 #define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
1888 #define INIT_HCA_TPT_MW_OFFSET (INIT_HCA_TPT_OFFSET + 0x08)
1889 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
1890 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
1891 #define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
1892 #define INIT_HCA_UAR_OFFSET 0x120
1893 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
1894 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
1895
1896 mailbox = mlx4_alloc_cmd_mailbox(dev);
1897 if (IS_ERR(mailbox))
1898 return PTR_ERR(mailbox);
1899 inbox = mailbox->buf;
1900
1901 *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
1902
1903 *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
1904 ((ilog2(cache_line_size()) - 4) << 5) | (1 << 4);
1905
1906 #if defined(__LITTLE_ENDIAN)
1907 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1908 #elif defined(__BIG_ENDIAN)
1909 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1910 #else
1911 #error Host endianness not defined
1912 #endif
1913 /* Check port for UD address vector: */
1914 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1915
1916 /* Enable IPoIB checksumming if we can: */
1917 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
1918 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
1919
1920 /* Enable QoS support if module parameter set */
1921 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG && enable_qos)
1922 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
1923
1924 /* enable counters */
1925 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
1926 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
1927
1928 /* Enable RSS spread to fragmented IP packets when supported */
1929 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_RSS_IP_FRAG)
1930 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 13);
1931
1932 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
1933 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_EQE) {
1934 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 29);
1935 dev->caps.eqe_size = 64;
1936 dev->caps.eqe_factor = 1;
1937 } else {
1938 dev->caps.eqe_size = 32;
1939 dev->caps.eqe_factor = 0;
1940 }
1941
1942 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_CQE) {
1943 *(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 30);
1944 dev->caps.cqe_size = 64;
1945 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1946 } else {
1947 dev->caps.cqe_size = 32;
1948 }
1949
1950 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
1951 if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) &&
1952 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) {
1953 dev->caps.eqe_size = cache_line_size();
1954 dev->caps.cqe_size = cache_line_size();
1955 dev->caps.eqe_factor = 0;
1956 MLX4_PUT(inbox, (u8)((ilog2(dev->caps.eqe_size) - 5) << 4 |
1957 (ilog2(dev->caps.eqe_size) - 5)),
1958 INIT_HCA_EQE_CQE_STRIDE_OFFSET);
1959
1960 /* User still need to know to support CQE > 32B */
1961 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
1962 }
1963
1964 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT)
1965 *(inbox + INIT_HCA_RECOVERABLE_ERROR_EVENT_OFFSET / 4) |= cpu_to_be32(1 << 31);
1966
1967 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DRIVER_VERSION_TO_FW) {
1968 u8 *dst = (u8 *)(inbox + INIT_HCA_DRIVER_VERSION_OFFSET / 4);
1969
1970 strncpy(dst, DRV_NAME_FOR_FW, INIT_HCA_DRIVER_VERSION_SZ - 1);
1971 mlx4_dbg(dev, "Reporting Driver Version to FW: %s\n", dst);
1972 }
1973
1974 /* QPC/EEC/CQC/EQC/RDMARC attributes */
1975
1976 MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
1977 MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
1978 MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
1979 MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1980 MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
1981 MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
1982 MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
1983 MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
1984 MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
1985 MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
1986 MLX4_PUT(inbox, param->num_sys_eqs, INIT_HCA_NUM_SYS_EQS_OFFSET);
1987 MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
1988 MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
1989
1990 /* steering attributes */
1991 if (dev->caps.steering_mode ==
1992 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1993 *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |=
1994 cpu_to_be32(1 <<
1995 INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN);
1996
1997 MLX4_PUT(inbox, param->mc_base, INIT_HCA_FS_BASE_OFFSET);
1998 MLX4_PUT(inbox, param->log_mc_entry_sz,
1999 INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
2000 MLX4_PUT(inbox, param->log_mc_table_sz,
2001 INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
2002 /* Enable Ethernet flow steering
2003 * with udp unicast and tcp unicast
2004 */
2005 if (dev->caps.dmfs_high_steer_mode !=
2006 MLX4_STEERING_DMFS_A0_STATIC)
2007 MLX4_PUT(inbox,
2008 (u8)(MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
2009 INIT_HCA_FS_ETH_BITS_OFFSET);
2010 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
2011 INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET);
2012 /* Enable IPoIB flow steering
2013 * with udp unicast and tcp unicast
2014 */
2015 MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
2016 INIT_HCA_FS_IB_BITS_OFFSET);
2017 MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
2018 INIT_HCA_FS_IB_NUM_ADDRS_OFFSET);
2019
2020 if (dev->caps.dmfs_high_steer_mode !=
2021 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
2022 MLX4_PUT(inbox,
2023 ((u8)(a0_dmfs_hw_steering[dev->caps.dmfs_high_steer_mode]
2024 << 6)),
2025 INIT_HCA_FS_A0_OFFSET);
2026 } else {
2027 MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
2028 MLX4_PUT(inbox, param->log_mc_entry_sz,
2029 INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
2030 MLX4_PUT(inbox, param->log_mc_hash_sz,
2031 INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
2032 MLX4_PUT(inbox, param->log_mc_table_sz,
2033 INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
2034 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0)
2035 MLX4_PUT(inbox, (u8) (1 << 3),
2036 INIT_HCA_UC_STEERING_OFFSET);
2037 }
2038
2039 /* TPT attributes */
2040
2041 MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
2042 MLX4_PUT(inbox, param->mw_enabled, INIT_HCA_TPT_MW_OFFSET);
2043 MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
2044 MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
2045 MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
2046
2047 /* UAR attributes */
2048
2049 MLX4_PUT(inbox, param->uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
2050 MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
2051
2052 /* set parser VXLAN attributes */
2053 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) {
2054 u8 parser_params = 0;
2055 MLX4_PUT(inbox, parser_params, INIT_HCA_VXLAN_OFFSET);
2056 }
2057
2058 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA,
2059 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
2060
2061 if (err)
2062 mlx4_err(dev, "INIT_HCA returns %d\n", err);
2063
2064 mlx4_free_cmd_mailbox(dev, mailbox);
2065 return err;
2066 }
2067
mlx4_QUERY_HCA(struct mlx4_dev * dev,struct mlx4_init_hca_param * param)2068 int mlx4_QUERY_HCA(struct mlx4_dev *dev,
2069 struct mlx4_init_hca_param *param)
2070 {
2071 struct mlx4_cmd_mailbox *mailbox;
2072 __be32 *outbox;
2073 u64 qword_field;
2074 u32 dword_field;
2075 u16 word_field;
2076 u8 byte_field;
2077 int err;
2078 static const u8 a0_dmfs_query_hw_steering[] = {
2079 [0] = MLX4_STEERING_DMFS_A0_DEFAULT,
2080 [1] = MLX4_STEERING_DMFS_A0_DYNAMIC,
2081 [2] = MLX4_STEERING_DMFS_A0_STATIC,
2082 [3] = MLX4_STEERING_DMFS_A0_DISABLE
2083 };
2084
2085 #define QUERY_HCA_GLOBAL_CAPS_OFFSET 0x04
2086 #define QUERY_HCA_CORE_CLOCK_OFFSET 0x0c
2087
2088 mailbox = mlx4_alloc_cmd_mailbox(dev);
2089 if (IS_ERR(mailbox))
2090 return PTR_ERR(mailbox);
2091 outbox = mailbox->buf;
2092
2093 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2094 MLX4_CMD_QUERY_HCA,
2095 MLX4_CMD_TIME_CLASS_B,
2096 !mlx4_is_slave(dev));
2097 if (err)
2098 goto out;
2099
2100 MLX4_GET(param->global_caps, outbox, QUERY_HCA_GLOBAL_CAPS_OFFSET);
2101 MLX4_GET(param->hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
2102
2103 /* QPC/EEC/CQC/EQC/RDMARC attributes */
2104
2105 MLX4_GET(qword_field, outbox, INIT_HCA_QPC_BASE_OFFSET);
2106 param->qpc_base = qword_field & ~((u64)0x1f);
2107 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_QP_OFFSET);
2108 param->log_num_qps = byte_field & 0x1f;
2109 MLX4_GET(qword_field, outbox, INIT_HCA_SRQC_BASE_OFFSET);
2110 param->srqc_base = qword_field & ~((u64)0x1f);
2111 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_SRQ_OFFSET);
2112 param->log_num_srqs = byte_field & 0x1f;
2113 MLX4_GET(qword_field, outbox, INIT_HCA_CQC_BASE_OFFSET);
2114 param->cqc_base = qword_field & ~((u64)0x1f);
2115 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_CQ_OFFSET);
2116 param->log_num_cqs = byte_field & 0x1f;
2117 MLX4_GET(qword_field, outbox, INIT_HCA_ALTC_BASE_OFFSET);
2118 param->altc_base = qword_field;
2119 MLX4_GET(qword_field, outbox, INIT_HCA_AUXC_BASE_OFFSET);
2120 param->auxc_base = qword_field;
2121 MLX4_GET(qword_field, outbox, INIT_HCA_EQC_BASE_OFFSET);
2122 param->eqc_base = qword_field & ~((u64)0x1f);
2123 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_EQ_OFFSET);
2124 param->log_num_eqs = byte_field & 0x1f;
2125 MLX4_GET(word_field, outbox, INIT_HCA_NUM_SYS_EQS_OFFSET);
2126 param->num_sys_eqs = word_field & 0xfff;
2127 MLX4_GET(qword_field, outbox, INIT_HCA_RDMARC_BASE_OFFSET);
2128 param->rdmarc_base = qword_field & ~((u64)0x1f);
2129 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_RD_OFFSET);
2130 param->log_rd_per_qp = byte_field & 0x7;
2131
2132 MLX4_GET(dword_field, outbox, INIT_HCA_FLAGS_OFFSET);
2133 if (dword_field & (1 << INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN)) {
2134 param->steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
2135 } else {
2136 MLX4_GET(byte_field, outbox, INIT_HCA_UC_STEERING_OFFSET);
2137 if (byte_field & 0x8)
2138 param->steering_mode = MLX4_STEERING_MODE_B0;
2139 else
2140 param->steering_mode = MLX4_STEERING_MODE_A0;
2141 }
2142
2143 if (dword_field & (1 << 13))
2144 param->rss_ip_frags = 1;
2145
2146 /* steering attributes */
2147 if (param->steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2148 MLX4_GET(param->mc_base, outbox, INIT_HCA_FS_BASE_OFFSET);
2149 MLX4_GET(byte_field, outbox, INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
2150 param->log_mc_entry_sz = byte_field & 0x1f;
2151 MLX4_GET(byte_field, outbox, INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
2152 param->log_mc_table_sz = byte_field & 0x1f;
2153 MLX4_GET(byte_field, outbox, INIT_HCA_FS_A0_OFFSET);
2154 param->dmfs_high_steer_mode =
2155 a0_dmfs_query_hw_steering[(byte_field >> 6) & 3];
2156 } else {
2157 MLX4_GET(param->mc_base, outbox, INIT_HCA_MC_BASE_OFFSET);
2158 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
2159 param->log_mc_entry_sz = byte_field & 0x1f;
2160 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
2161 param->log_mc_hash_sz = byte_field & 0x1f;
2162 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
2163 param->log_mc_table_sz = byte_field & 0x1f;
2164 }
2165
2166 /* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
2167 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_OFFSETS);
2168 if (byte_field & 0x20) /* 64-bytes eqe enabled */
2169 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_EQE_ENABLED;
2170 if (byte_field & 0x40) /* 64-bytes cqe enabled */
2171 param->dev_cap_enabled |= MLX4_DEV_CAP_64B_CQE_ENABLED;
2172
2173 /* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
2174 MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_STRIDE_OFFSET);
2175 if (byte_field) {
2176 param->dev_cap_enabled |= MLX4_DEV_CAP_EQE_STRIDE_ENABLED;
2177 param->dev_cap_enabled |= MLX4_DEV_CAP_CQE_STRIDE_ENABLED;
2178 param->cqe_size = 1 << ((byte_field &
2179 MLX4_CQE_SIZE_MASK_STRIDE) + 5);
2180 param->eqe_size = 1 << (((byte_field &
2181 MLX4_EQE_SIZE_MASK_STRIDE) >> 4) + 5);
2182 }
2183
2184 /* TPT attributes */
2185
2186 MLX4_GET(param->dmpt_base, outbox, INIT_HCA_DMPT_BASE_OFFSET);
2187 MLX4_GET(byte_field, outbox, INIT_HCA_TPT_MW_OFFSET);
2188 param->mw_enabled = byte_field >> 7;
2189 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
2190 param->log_mpt_sz = byte_field & 0x3f;
2191 MLX4_GET(param->mtt_base, outbox, INIT_HCA_MTT_BASE_OFFSET);
2192 MLX4_GET(param->cmpt_base, outbox, INIT_HCA_CMPT_BASE_OFFSET);
2193
2194 /* UAR attributes */
2195
2196 MLX4_GET(param->uar_page_sz, outbox, INIT_HCA_UAR_PAGE_SZ_OFFSET);
2197 MLX4_GET(byte_field, outbox, INIT_HCA_LOG_UAR_SZ_OFFSET);
2198 param->log_uar_sz = byte_field & 0xf;
2199
2200 /* phv_check enable */
2201 MLX4_GET(byte_field, outbox, INIT_HCA_CACHELINE_SZ_OFFSET);
2202 if (byte_field & 0x2)
2203 param->phv_check_en = 1;
2204 out:
2205 mlx4_free_cmd_mailbox(dev, mailbox);
2206
2207 return err;
2208 }
2209
mlx4_hca_core_clock_update(struct mlx4_dev * dev)2210 static int mlx4_hca_core_clock_update(struct mlx4_dev *dev)
2211 {
2212 struct mlx4_cmd_mailbox *mailbox;
2213 __be32 *outbox;
2214 int err;
2215
2216 mailbox = mlx4_alloc_cmd_mailbox(dev);
2217 if (IS_ERR(mailbox)) {
2218 mlx4_warn(dev, "hca_core_clock mailbox allocation failed\n");
2219 return PTR_ERR(mailbox);
2220 }
2221 outbox = mailbox->buf;
2222
2223 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2224 MLX4_CMD_QUERY_HCA,
2225 MLX4_CMD_TIME_CLASS_B,
2226 !mlx4_is_slave(dev));
2227 if (err) {
2228 mlx4_warn(dev, "hca_core_clock update failed\n");
2229 goto out;
2230 }
2231
2232 MLX4_GET(dev->caps.hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
2233
2234 out:
2235 mlx4_free_cmd_mailbox(dev, mailbox);
2236
2237 return err;
2238 }
2239
2240 /* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
2241 * and real QP0 are active, so that the paravirtualized QP0 is ready
2242 * to operate */
check_qp0_state(struct mlx4_dev * dev,int function,int port)2243 static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
2244 {
2245 struct mlx4_priv *priv = mlx4_priv(dev);
2246 /* irrelevant if not infiniband */
2247 if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
2248 priv->mfunc.master.qp0_state[port].qp0_active)
2249 return 1;
2250 return 0;
2251 }
2252
mlx4_INIT_PORT_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)2253 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
2254 struct mlx4_vhcr *vhcr,
2255 struct mlx4_cmd_mailbox *inbox,
2256 struct mlx4_cmd_mailbox *outbox,
2257 struct mlx4_cmd_info *cmd)
2258 {
2259 struct mlx4_priv *priv = mlx4_priv(dev);
2260 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2261 int err;
2262
2263 if (port < 0)
2264 return -EINVAL;
2265
2266 if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
2267 return 0;
2268
2269 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2270 /* Enable port only if it was previously disabled */
2271 if (!priv->mfunc.master.init_port_ref[port]) {
2272 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2273 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2274 if (err)
2275 return err;
2276 }
2277 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2278 } else {
2279 if (slave == mlx4_master_func_num(dev)) {
2280 if (check_qp0_state(dev, slave, port) &&
2281 !priv->mfunc.master.qp0_state[port].port_active) {
2282 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2283 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2284 if (err)
2285 return err;
2286 priv->mfunc.master.qp0_state[port].port_active = 1;
2287 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2288 }
2289 } else
2290 priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
2291 }
2292 ++priv->mfunc.master.init_port_ref[port];
2293 return 0;
2294 }
2295
mlx4_INIT_PORT(struct mlx4_dev * dev,int port)2296 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
2297 {
2298 struct mlx4_cmd_mailbox *mailbox;
2299 u32 *inbox;
2300 int err;
2301 u32 flags;
2302 u16 field;
2303
2304 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
2305 #define INIT_PORT_IN_SIZE 256
2306 #define INIT_PORT_FLAGS_OFFSET 0x00
2307 #define INIT_PORT_FLAG_SIG (1 << 18)
2308 #define INIT_PORT_FLAG_NG (1 << 17)
2309 #define INIT_PORT_FLAG_G0 (1 << 16)
2310 #define INIT_PORT_VL_SHIFT 4
2311 #define INIT_PORT_PORT_WIDTH_SHIFT 8
2312 #define INIT_PORT_MTU_OFFSET 0x04
2313 #define INIT_PORT_MAX_GID_OFFSET 0x06
2314 #define INIT_PORT_MAX_PKEY_OFFSET 0x0a
2315 #define INIT_PORT_GUID0_OFFSET 0x10
2316 #define INIT_PORT_NODE_GUID_OFFSET 0x18
2317 #define INIT_PORT_SI_GUID_OFFSET 0x20
2318
2319 mailbox = mlx4_alloc_cmd_mailbox(dev);
2320 if (IS_ERR(mailbox))
2321 return PTR_ERR(mailbox);
2322 inbox = mailbox->buf;
2323
2324 flags = 0;
2325 flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
2326 flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
2327 MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
2328
2329 field = 128 << dev->caps.ib_mtu_cap[port];
2330 MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
2331 field = dev->caps.gid_table_len[port];
2332 MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
2333 field = dev->caps.pkey_table_len[port];
2334 MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
2335
2336 err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
2337 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2338
2339 mlx4_free_cmd_mailbox(dev, mailbox);
2340 } else
2341 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
2342 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2343
2344 if (!err)
2345 mlx4_hca_core_clock_update(dev);
2346
2347 return err;
2348 }
2349 EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
2350
mlx4_CLOSE_PORT_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)2351 int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
2352 struct mlx4_vhcr *vhcr,
2353 struct mlx4_cmd_mailbox *inbox,
2354 struct mlx4_cmd_mailbox *outbox,
2355 struct mlx4_cmd_info *cmd)
2356 {
2357 struct mlx4_priv *priv = mlx4_priv(dev);
2358 int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
2359 int err;
2360
2361 if (port < 0)
2362 return -EINVAL;
2363
2364 if (!(priv->mfunc.master.slave_state[slave].init_port_mask &
2365 (1 << port)))
2366 return 0;
2367
2368 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
2369 if (priv->mfunc.master.init_port_ref[port] == 1) {
2370 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2371 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2372 if (err)
2373 return err;
2374 }
2375 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2376 } else {
2377 /* infiniband port */
2378 if (slave == mlx4_master_func_num(dev)) {
2379 if (!priv->mfunc.master.qp0_state[port].qp0_active &&
2380 priv->mfunc.master.qp0_state[port].port_active) {
2381 err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2382 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2383 if (err)
2384 return err;
2385 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2386 priv->mfunc.master.qp0_state[port].port_active = 0;
2387 }
2388 } else
2389 priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
2390 }
2391 --priv->mfunc.master.init_port_ref[port];
2392 return 0;
2393 }
2394
mlx4_CLOSE_PORT(struct mlx4_dev * dev,int port)2395 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
2396 {
2397 return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
2398 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2399 }
2400 EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
2401
mlx4_CLOSE_HCA(struct mlx4_dev * dev,int panic)2402 int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
2403 {
2404 return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA,
2405 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
2406 }
2407
2408 struct mlx4_config_dev {
2409 __be32 update_flags;
2410 __be32 rsvd1[3];
2411 __be16 vxlan_udp_dport;
2412 __be16 rsvd2;
2413 __be16 roce_v2_entropy;
2414 __be16 roce_v2_udp_dport;
2415 __be32 roce_flags;
2416 __be32 rsvd4[25];
2417 __be16 rsvd5;
2418 u8 rsvd6;
2419 u8 rx_checksum_val;
2420 };
2421
2422 #define MLX4_VXLAN_UDP_DPORT (1 << 0)
2423 #define MLX4_ROCE_V2_UDP_DPORT BIT(3)
2424 #define MLX4_DISABLE_RX_PORT BIT(18)
2425
mlx4_CONFIG_DEV_set(struct mlx4_dev * dev,struct mlx4_config_dev * config_dev)2426 static int mlx4_CONFIG_DEV_set(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2427 {
2428 int err;
2429 struct mlx4_cmd_mailbox *mailbox;
2430
2431 mailbox = mlx4_alloc_cmd_mailbox(dev);
2432 if (IS_ERR(mailbox))
2433 return PTR_ERR(mailbox);
2434
2435 memcpy(mailbox->buf, config_dev, sizeof(*config_dev));
2436
2437 err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_CONFIG_DEV,
2438 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2439
2440 mlx4_free_cmd_mailbox(dev, mailbox);
2441 return err;
2442 }
2443
mlx4_CONFIG_DEV_get(struct mlx4_dev * dev,struct mlx4_config_dev * config_dev)2444 static int mlx4_CONFIG_DEV_get(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
2445 {
2446 int err;
2447 struct mlx4_cmd_mailbox *mailbox;
2448
2449 mailbox = mlx4_alloc_cmd_mailbox(dev);
2450 if (IS_ERR(mailbox))
2451 return PTR_ERR(mailbox);
2452
2453 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 1, MLX4_CMD_CONFIG_DEV,
2454 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2455
2456 if (!err)
2457 memcpy(config_dev, mailbox->buf, sizeof(*config_dev));
2458
2459 mlx4_free_cmd_mailbox(dev, mailbox);
2460 return err;
2461 }
2462
2463 /* Conversion between the HW values and the actual functionality.
2464 * The value represented by the array index,
2465 * and the functionality determined by the flags.
2466 */
2467 static const u8 config_dev_csum_flags[] = {
2468 [0] = 0,
2469 [1] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP,
2470 [2] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP |
2471 MLX4_RX_CSUM_MODE_L4,
2472 [3] = MLX4_RX_CSUM_MODE_L4 |
2473 MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP |
2474 MLX4_RX_CSUM_MODE_MULTI_VLAN
2475 };
2476
mlx4_config_dev_retrieval(struct mlx4_dev * dev,struct mlx4_config_dev_params * params)2477 int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
2478 struct mlx4_config_dev_params *params)
2479 {
2480 struct mlx4_config_dev config_dev = {0};
2481 int err;
2482 u8 csum_mask;
2483
2484 #define CONFIG_DEV_RX_CSUM_MODE_MASK 0x7
2485 #define CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET 0
2486 #define CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET 4
2487
2488 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CONFIG_DEV))
2489 return -EOPNOTSUPP;
2490
2491 err = mlx4_CONFIG_DEV_get(dev, &config_dev);
2492 if (err)
2493 return err;
2494
2495 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET) &
2496 CONFIG_DEV_RX_CSUM_MODE_MASK;
2497
2498 if (csum_mask >= ARRAY_SIZE(config_dev_csum_flags))
2499 return -EINVAL;
2500 params->rx_csum_flags_port_1 = config_dev_csum_flags[csum_mask];
2501
2502 csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET) &
2503 CONFIG_DEV_RX_CSUM_MODE_MASK;
2504
2505 if (csum_mask >= ARRAY_SIZE(config_dev_csum_flags))
2506 return -EINVAL;
2507 params->rx_csum_flags_port_2 = config_dev_csum_flags[csum_mask];
2508
2509 params->vxlan_udp_dport = be16_to_cpu(config_dev.vxlan_udp_dport);
2510
2511 return 0;
2512 }
2513 EXPORT_SYMBOL_GPL(mlx4_config_dev_retrieval);
2514
mlx4_config_vxlan_port(struct mlx4_dev * dev,__be16 udp_port)2515 int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port)
2516 {
2517 struct mlx4_config_dev config_dev;
2518
2519 memset(&config_dev, 0, sizeof(config_dev));
2520 config_dev.update_flags = cpu_to_be32(MLX4_VXLAN_UDP_DPORT);
2521 config_dev.vxlan_udp_dport = udp_port;
2522
2523 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2524 }
2525 EXPORT_SYMBOL_GPL(mlx4_config_vxlan_port);
2526
2527 #define CONFIG_DISABLE_RX_PORT BIT(15)
mlx4_disable_rx_port_check(struct mlx4_dev * dev,bool dis)2528 int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis)
2529 {
2530 struct mlx4_config_dev config_dev;
2531
2532 memset(&config_dev, 0, sizeof(config_dev));
2533 config_dev.update_flags = cpu_to_be32(MLX4_DISABLE_RX_PORT);
2534 if (dis)
2535 config_dev.roce_flags =
2536 cpu_to_be32(CONFIG_DISABLE_RX_PORT);
2537
2538 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2539 }
2540
mlx4_config_roce_v2_port(struct mlx4_dev * dev,u16 udp_port)2541 int mlx4_config_roce_v2_port(struct mlx4_dev *dev, u16 udp_port)
2542 {
2543 struct mlx4_config_dev config_dev;
2544
2545 memset(&config_dev, 0, sizeof(config_dev));
2546 config_dev.update_flags = cpu_to_be32(MLX4_ROCE_V2_UDP_DPORT);
2547 config_dev.roce_v2_udp_dport = cpu_to_be16(udp_port);
2548
2549 return mlx4_CONFIG_DEV_set(dev, &config_dev);
2550 }
2551 EXPORT_SYMBOL_GPL(mlx4_config_roce_v2_port);
2552
mlx4_virt2phy_port_map(struct mlx4_dev * dev,u32 port1,u32 port2)2553 int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2)
2554 {
2555 struct mlx4_cmd_mailbox *mailbox;
2556 struct {
2557 __be32 v_port1;
2558 __be32 v_port2;
2559 } *v2p;
2560 int err;
2561
2562 mailbox = mlx4_alloc_cmd_mailbox(dev);
2563 if (IS_ERR(mailbox))
2564 return -ENOMEM;
2565
2566 v2p = mailbox->buf;
2567 v2p->v_port1 = cpu_to_be32(port1);
2568 v2p->v_port2 = cpu_to_be32(port2);
2569
2570 err = mlx4_cmd(dev, mailbox->dma, 0,
2571 MLX4_SET_PORT_VIRT2PHY, MLX4_CMD_VIRT_PORT_MAP,
2572 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2573
2574 mlx4_free_cmd_mailbox(dev, mailbox);
2575 return err;
2576 }
2577
2578
mlx4_SET_ICM_SIZE(struct mlx4_dev * dev,u64 icm_size,u64 * aux_pages)2579 int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
2580 {
2581 int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
2582 MLX4_CMD_SET_ICM_SIZE,
2583 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2584 if (ret)
2585 return ret;
2586
2587 /*
2588 * Round up number of system pages needed in case
2589 * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
2590 */
2591 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
2592 (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
2593
2594 return 0;
2595 }
2596
mlx4_NOP(struct mlx4_dev * dev)2597 int mlx4_NOP(struct mlx4_dev *dev)
2598 {
2599 /* Input modifier of 0x1f means "finish as soon as possible." */
2600 return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, MLX4_CMD_TIME_CLASS_A,
2601 MLX4_CMD_NATIVE);
2602 }
2603
mlx4_query_diag_counters(struct mlx4_dev * dev,u8 op_modifier,const u32 offset[],u32 value[],size_t array_len,u8 port)2604 int mlx4_query_diag_counters(struct mlx4_dev *dev, u8 op_modifier,
2605 const u32 offset[],
2606 u32 value[], size_t array_len, u8 port)
2607 {
2608 struct mlx4_cmd_mailbox *mailbox;
2609 u32 *outbox;
2610 size_t i;
2611 int ret;
2612
2613 mailbox = mlx4_alloc_cmd_mailbox(dev);
2614 if (IS_ERR(mailbox))
2615 return PTR_ERR(mailbox);
2616
2617 outbox = mailbox->buf;
2618
2619 ret = mlx4_cmd_box(dev, 0, mailbox->dma, port, op_modifier,
2620 MLX4_CMD_DIAG_RPRT, MLX4_CMD_TIME_CLASS_A,
2621 MLX4_CMD_NATIVE);
2622 if (ret)
2623 goto out;
2624
2625 for (i = 0; i < array_len; i++) {
2626 if (offset[i] > MLX4_MAILBOX_SIZE) {
2627 ret = -EINVAL;
2628 goto out;
2629 }
2630
2631 MLX4_GET(value[i], outbox, offset[i]);
2632 }
2633
2634 out:
2635 mlx4_free_cmd_mailbox(dev, mailbox);
2636 return ret;
2637 }
2638 EXPORT_SYMBOL(mlx4_query_diag_counters);
2639
mlx4_get_phys_port_id(struct mlx4_dev * dev)2640 int mlx4_get_phys_port_id(struct mlx4_dev *dev)
2641 {
2642 u8 port;
2643 u32 *outbox;
2644 struct mlx4_cmd_mailbox *mailbox;
2645 u32 in_mod;
2646 u32 guid_hi, guid_lo;
2647 int err, ret = 0;
2648 #define MOD_STAT_CFG_PORT_OFFSET 8
2649 #define MOD_STAT_CFG_GUID_H 0X14
2650 #define MOD_STAT_CFG_GUID_L 0X1c
2651
2652 mailbox = mlx4_alloc_cmd_mailbox(dev);
2653 if (IS_ERR(mailbox))
2654 return PTR_ERR(mailbox);
2655 outbox = mailbox->buf;
2656
2657 for (port = 1; port <= dev->caps.num_ports; port++) {
2658 in_mod = port << MOD_STAT_CFG_PORT_OFFSET;
2659 err = mlx4_cmd_box(dev, 0, mailbox->dma, in_mod, 0x2,
2660 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2661 MLX4_CMD_NATIVE);
2662 if (err) {
2663 mlx4_err(dev, "Fail to get port %d uplink guid\n",
2664 port);
2665 ret = err;
2666 } else {
2667 MLX4_GET(guid_hi, outbox, MOD_STAT_CFG_GUID_H);
2668 MLX4_GET(guid_lo, outbox, MOD_STAT_CFG_GUID_L);
2669 dev->caps.phys_port_id[port] = (u64)guid_lo |
2670 (u64)guid_hi << 32;
2671 }
2672 }
2673 mlx4_free_cmd_mailbox(dev, mailbox);
2674 return ret;
2675 }
2676
2677 #define MLX4_WOL_SETUP_MODE (5 << 28)
mlx4_wol_read(struct mlx4_dev * dev,u64 * config,int port)2678 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
2679 {
2680 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2681
2682 return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
2683 MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
2684 MLX4_CMD_NATIVE);
2685 }
2686 EXPORT_SYMBOL_GPL(mlx4_wol_read);
2687
mlx4_wol_write(struct mlx4_dev * dev,u64 config,int port)2688 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
2689 {
2690 u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
2691
2692 return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
2693 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
2694 }
2695 EXPORT_SYMBOL_GPL(mlx4_wol_write);
2696
2697 enum {
2698 ADD_TO_MCG = 0x26,
2699 };
2700
2701
mlx4_opreq_action(struct work_struct * work)2702 void mlx4_opreq_action(struct work_struct *work)
2703 {
2704 struct mlx4_priv *priv = container_of(work, struct mlx4_priv,
2705 opreq_task);
2706 struct mlx4_dev *dev = &priv->dev;
2707 int num_tasks = atomic_read(&priv->opreq_count);
2708 struct mlx4_cmd_mailbox *mailbox;
2709 struct mlx4_mgm *mgm;
2710 u32 *outbox;
2711 u32 modifier;
2712 u16 token;
2713 u16 type;
2714 int err;
2715 u32 num_qps;
2716 struct mlx4_qp qp;
2717 int i;
2718 u8 rem_mcg;
2719 u8 prot;
2720
2721 #define GET_OP_REQ_MODIFIER_OFFSET 0x08
2722 #define GET_OP_REQ_TOKEN_OFFSET 0x14
2723 #define GET_OP_REQ_TYPE_OFFSET 0x1a
2724 #define GET_OP_REQ_DATA_OFFSET 0x20
2725
2726 mailbox = mlx4_alloc_cmd_mailbox(dev);
2727 if (IS_ERR(mailbox)) {
2728 mlx4_err(dev, "Failed to allocate mailbox for GET_OP_REQ\n");
2729 return;
2730 }
2731 outbox = mailbox->buf;
2732
2733 while (num_tasks) {
2734 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
2735 MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2736 MLX4_CMD_NATIVE);
2737 if (err) {
2738 mlx4_err(dev, "Failed to retrieve required operation: %d\n",
2739 err);
2740 goto out;
2741 }
2742 MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
2743 MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
2744 MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
2745 type &= 0xfff;
2746
2747 switch (type) {
2748 case ADD_TO_MCG:
2749 if (dev->caps.steering_mode ==
2750 MLX4_STEERING_MODE_DEVICE_MANAGED) {
2751 mlx4_warn(dev, "ADD MCG operation is not supported in DEVICE_MANAGED steering mode\n");
2752 err = EPERM;
2753 break;
2754 }
2755 mgm = (struct mlx4_mgm *)((u8 *)(outbox) +
2756 GET_OP_REQ_DATA_OFFSET);
2757 num_qps = be32_to_cpu(mgm->members_count) &
2758 MGM_QPN_MASK;
2759 rem_mcg = ((u8 *)(&mgm->members_count))[0] & 1;
2760 prot = ((u8 *)(&mgm->members_count))[0] >> 6;
2761
2762 for (i = 0; i < num_qps; i++) {
2763 qp.qpn = be32_to_cpu(mgm->qp[i]);
2764 if (rem_mcg)
2765 err = mlx4_multicast_detach(dev, &qp,
2766 mgm->gid,
2767 prot, 0);
2768 else
2769 err = mlx4_multicast_attach(dev, &qp,
2770 mgm->gid,
2771 mgm->gid[5]
2772 , 0, prot,
2773 NULL);
2774 if (err)
2775 break;
2776 }
2777 break;
2778 default:
2779 mlx4_warn(dev, "Bad type for required operation\n");
2780 err = EINVAL;
2781 break;
2782 }
2783 err = mlx4_cmd(dev, 0, ((u32) err |
2784 (__force u32)cpu_to_be32(token) << 16),
2785 1, MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
2786 MLX4_CMD_NATIVE);
2787 if (err) {
2788 mlx4_err(dev, "Failed to acknowledge required request: %d\n",
2789 err);
2790 goto out;
2791 }
2792 memset(outbox, 0, 0xffc);
2793 num_tasks = atomic_dec_return(&priv->opreq_count);
2794 }
2795
2796 out:
2797 mlx4_free_cmd_mailbox(dev, mailbox);
2798 }
2799
mlx4_check_smp_firewall_active(struct mlx4_dev * dev,struct mlx4_cmd_mailbox * mailbox)2800 static int mlx4_check_smp_firewall_active(struct mlx4_dev *dev,
2801 struct mlx4_cmd_mailbox *mailbox)
2802 {
2803 #define MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET 0x10
2804 #define MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET 0x20
2805 #define MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET 0x40
2806 #define MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET 0x70
2807
2808 u32 set_attr_mask, getresp_attr_mask;
2809 u32 trap_attr_mask, traprepress_attr_mask;
2810
2811 MLX4_GET(set_attr_mask, mailbox->buf,
2812 MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET);
2813 mlx4_dbg(dev, "SMP firewall set_attribute_mask = 0x%x\n",
2814 set_attr_mask);
2815
2816 MLX4_GET(getresp_attr_mask, mailbox->buf,
2817 MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET);
2818 mlx4_dbg(dev, "SMP firewall getresp_attribute_mask = 0x%x\n",
2819 getresp_attr_mask);
2820
2821 MLX4_GET(trap_attr_mask, mailbox->buf,
2822 MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET);
2823 mlx4_dbg(dev, "SMP firewall trap_attribute_mask = 0x%x\n",
2824 trap_attr_mask);
2825
2826 MLX4_GET(traprepress_attr_mask, mailbox->buf,
2827 MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET);
2828 mlx4_dbg(dev, "SMP firewall traprepress_attribute_mask = 0x%x\n",
2829 traprepress_attr_mask);
2830
2831 if (set_attr_mask && getresp_attr_mask && trap_attr_mask &&
2832 traprepress_attr_mask)
2833 return 1;
2834
2835 return 0;
2836 }
2837
mlx4_config_mad_demux(struct mlx4_dev * dev)2838 int mlx4_config_mad_demux(struct mlx4_dev *dev)
2839 {
2840 struct mlx4_cmd_mailbox *mailbox;
2841 int err;
2842
2843 /* Check if mad_demux is supported */
2844 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_MAD_DEMUX))
2845 return 0;
2846
2847 mailbox = mlx4_alloc_cmd_mailbox(dev);
2848 if (IS_ERR(mailbox)) {
2849 mlx4_warn(dev, "Failed to allocate mailbox for cmd MAD_DEMUX");
2850 return -ENOMEM;
2851 }
2852
2853 /* Query mad_demux to find out which MADs are handled by internal sma */
2854 err = mlx4_cmd_box(dev, 0, mailbox->dma, 0x01 /* subn mgmt class */,
2855 MLX4_CMD_MAD_DEMUX_QUERY_RESTR, MLX4_CMD_MAD_DEMUX,
2856 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2857 if (err) {
2858 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: query restrictions failed (%d)\n",
2859 err);
2860 goto out;
2861 }
2862
2863 if (mlx4_check_smp_firewall_active(dev, mailbox))
2864 dev->flags |= MLX4_FLAG_SECURE_HOST;
2865
2866 /* Config mad_demux to handle all MADs returned by the query above */
2867 err = mlx4_cmd(dev, mailbox->dma, 0x01 /* subn mgmt class */,
2868 MLX4_CMD_MAD_DEMUX_CONFIG, MLX4_CMD_MAD_DEMUX,
2869 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
2870 if (err) {
2871 mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: configure failed (%d)\n", err);
2872 goto out;
2873 }
2874
2875 if (dev->flags & MLX4_FLAG_SECURE_HOST)
2876 mlx4_warn(dev, "HCA operating in secure-host mode. SMP firewall activated.\n");
2877 out:
2878 mlx4_free_cmd_mailbox(dev, mailbox);
2879 return err;
2880 }
2881
2882 /* Access Reg commands */
2883 enum mlx4_access_reg_masks {
2884 MLX4_ACCESS_REG_STATUS_MASK = 0x7f,
2885 MLX4_ACCESS_REG_METHOD_MASK = 0x7f,
2886 MLX4_ACCESS_REG_LEN_MASK = 0x7ff
2887 };
2888
2889 struct mlx4_access_reg {
2890 __be16 constant1;
2891 u8 status;
2892 u8 resrvd1;
2893 __be16 reg_id;
2894 u8 method;
2895 u8 constant2;
2896 __be32 resrvd2[2];
2897 __be16 len_const;
2898 __be16 resrvd3;
2899 #define MLX4_ACCESS_REG_HEADER_SIZE (20)
2900 u8 reg_data[MLX4_MAILBOX_SIZE-MLX4_ACCESS_REG_HEADER_SIZE];
2901 } __attribute__((__packed__));
2902
2903 /**
2904 * mlx4_ACCESS_REG - Generic access reg command.
2905 * @dev: mlx4_dev.
2906 * @reg_id: register ID to access.
2907 * @method: Access method Read/Write.
2908 * @reg_len: register length to Read/Write in bytes.
2909 * @reg_data: reg_data pointer to Read/Write From/To.
2910 *
2911 * Access ConnectX registers FW command.
2912 * Returns 0 on success and copies outbox mlx4_access_reg data
2913 * field into reg_data or a negative error code.
2914 */
mlx4_ACCESS_REG(struct mlx4_dev * dev,u16 reg_id,enum mlx4_access_reg_method method,u16 reg_len,void * reg_data)2915 static int mlx4_ACCESS_REG(struct mlx4_dev *dev, u16 reg_id,
2916 enum mlx4_access_reg_method method,
2917 u16 reg_len, void *reg_data)
2918 {
2919 struct mlx4_cmd_mailbox *inbox, *outbox;
2920 struct mlx4_access_reg *inbuf, *outbuf;
2921 int err;
2922
2923 inbox = mlx4_alloc_cmd_mailbox(dev);
2924 if (IS_ERR(inbox))
2925 return PTR_ERR(inbox);
2926
2927 outbox = mlx4_alloc_cmd_mailbox(dev);
2928 if (IS_ERR(outbox)) {
2929 mlx4_free_cmd_mailbox(dev, inbox);
2930 return PTR_ERR(outbox);
2931 }
2932
2933 inbuf = inbox->buf;
2934 outbuf = outbox->buf;
2935
2936 inbuf->constant1 = cpu_to_be16(0x1<<11 | 0x4);
2937 inbuf->constant2 = 0x1;
2938 inbuf->reg_id = cpu_to_be16(reg_id);
2939 inbuf->method = method & MLX4_ACCESS_REG_METHOD_MASK;
2940
2941 reg_len = min(reg_len, (u16)(sizeof(inbuf->reg_data)));
2942 inbuf->len_const =
2943 cpu_to_be16(((reg_len/4 + 1) & MLX4_ACCESS_REG_LEN_MASK) |
2944 ((0x3) << 12));
2945
2946 memcpy(inbuf->reg_data, reg_data, reg_len);
2947 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 0, 0,
2948 MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
2949 MLX4_CMD_WRAPPED);
2950 if (err)
2951 goto out;
2952
2953 if (outbuf->status & MLX4_ACCESS_REG_STATUS_MASK) {
2954 err = outbuf->status & MLX4_ACCESS_REG_STATUS_MASK;
2955 mlx4_err(dev,
2956 "MLX4_CMD_ACCESS_REG(%x) returned REG status (%x)\n",
2957 reg_id, err);
2958 goto out;
2959 }
2960
2961 memcpy(reg_data, outbuf->reg_data, reg_len);
2962 out:
2963 mlx4_free_cmd_mailbox(dev, inbox);
2964 mlx4_free_cmd_mailbox(dev, outbox);
2965 return err;
2966 }
2967
2968 /* ConnectX registers IDs */
2969 enum mlx4_reg_id {
2970 MLX4_REG_ID_PTYS = 0x5004,
2971 };
2972
2973 /**
2974 * mlx4_ACCESS_PTYS_REG - Access PTYs (Port Type and Speed)
2975 * register
2976 * @dev: mlx4_dev.
2977 * @method: Access method Read/Write.
2978 * @ptys_reg: PTYS register data pointer.
2979 *
2980 * Access ConnectX PTYS register, to Read/Write Port Type/Speed
2981 * configuration
2982 * Returns 0 on success or a negative error code.
2983 */
mlx4_ACCESS_PTYS_REG(struct mlx4_dev * dev,enum mlx4_access_reg_method method,struct mlx4_ptys_reg * ptys_reg)2984 int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
2985 enum mlx4_access_reg_method method,
2986 struct mlx4_ptys_reg *ptys_reg)
2987 {
2988 return mlx4_ACCESS_REG(dev, MLX4_REG_ID_PTYS,
2989 method, sizeof(*ptys_reg), ptys_reg);
2990 }
2991 EXPORT_SYMBOL_GPL(mlx4_ACCESS_PTYS_REG);
2992
mlx4_ACCESS_REG_wrapper(struct mlx4_dev * dev,int slave,struct mlx4_vhcr * vhcr,struct mlx4_cmd_mailbox * inbox,struct mlx4_cmd_mailbox * outbox,struct mlx4_cmd_info * cmd)2993 int mlx4_ACCESS_REG_wrapper(struct mlx4_dev *dev, int slave,
2994 struct mlx4_vhcr *vhcr,
2995 struct mlx4_cmd_mailbox *inbox,
2996 struct mlx4_cmd_mailbox *outbox,
2997 struct mlx4_cmd_info *cmd)
2998 {
2999 struct mlx4_access_reg *inbuf = inbox->buf;
3000 u8 method = inbuf->method & MLX4_ACCESS_REG_METHOD_MASK;
3001 u16 reg_id = be16_to_cpu(inbuf->reg_id);
3002
3003 if (slave != mlx4_master_func_num(dev) &&
3004 method == MLX4_ACCESS_REG_WRITE)
3005 return -EPERM;
3006
3007 if (reg_id == MLX4_REG_ID_PTYS) {
3008 struct mlx4_ptys_reg *ptys_reg =
3009 (struct mlx4_ptys_reg *)inbuf->reg_data;
3010
3011 ptys_reg->local_port =
3012 mlx4_slave_convert_port(dev, slave,
3013 ptys_reg->local_port);
3014 }
3015
3016 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier,
3017 0, MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
3018 MLX4_CMD_NATIVE);
3019 }
3020
mlx4_SET_PORT_phv_bit(struct mlx4_dev * dev,u8 port,u8 phv_bit)3021 static int mlx4_SET_PORT_phv_bit(struct mlx4_dev *dev, u8 port, u8 phv_bit)
3022 {
3023 #define SET_PORT_GEN_PHV_VALID 0x10
3024 #define SET_PORT_GEN_PHV_EN 0x80
3025
3026 struct mlx4_cmd_mailbox *mailbox;
3027 struct mlx4_set_port_general_context *context;
3028 u32 in_mod;
3029 int err;
3030
3031 mailbox = mlx4_alloc_cmd_mailbox(dev);
3032 if (IS_ERR(mailbox))
3033 return PTR_ERR(mailbox);
3034 context = mailbox->buf;
3035
3036 context->flags2 |= SET_PORT_GEN_PHV_VALID;
3037 if (phv_bit)
3038 context->phv_en |= SET_PORT_GEN_PHV_EN;
3039
3040 in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
3041 err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE,
3042 MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
3043 MLX4_CMD_NATIVE);
3044
3045 mlx4_free_cmd_mailbox(dev, mailbox);
3046 return err;
3047 }
3048
get_phv_bit(struct mlx4_dev * dev,u8 port,int * phv)3049 int get_phv_bit(struct mlx4_dev *dev, u8 port, int *phv)
3050 {
3051 int err;
3052 struct mlx4_func_cap func_cap;
3053
3054 memset(&func_cap, 0, sizeof(func_cap));
3055 err = mlx4_QUERY_FUNC_CAP(dev, port, &func_cap);
3056 if (!err)
3057 *phv = func_cap.flags0 & QUERY_FUNC_CAP_PHV_BIT;
3058 return err;
3059 }
3060 EXPORT_SYMBOL(get_phv_bit);
3061
set_phv_bit(struct mlx4_dev * dev,u8 port,int new_val)3062 int set_phv_bit(struct mlx4_dev *dev, u8 port, int new_val)
3063 {
3064 int ret;
3065
3066 if (mlx4_is_slave(dev))
3067 return -EPERM;
3068
3069 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
3070 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
3071 ret = mlx4_SET_PORT_phv_bit(dev, port, new_val);
3072 if (!ret)
3073 dev->caps.phv_bit[port] = new_val;
3074 return ret;
3075 }
3076
3077 return -EOPNOTSUPP;
3078 }
3079 EXPORT_SYMBOL(set_phv_bit);
3080
mlx4_get_is_vlan_offload_disabled(struct mlx4_dev * dev,u8 port,bool * vlan_offload_disabled)3081 int mlx4_get_is_vlan_offload_disabled(struct mlx4_dev *dev, u8 port,
3082 bool *vlan_offload_disabled)
3083 {
3084 struct mlx4_func_cap func_cap;
3085 int err;
3086
3087 memset(&func_cap, 0, sizeof(func_cap));
3088 err = mlx4_QUERY_FUNC_CAP(dev, port, &func_cap);
3089 if (!err)
3090 *vlan_offload_disabled =
3091 !!(func_cap.flags0 &
3092 QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE);
3093 return err;
3094 }
3095 EXPORT_SYMBOL(mlx4_get_is_vlan_offload_disabled);
3096
mlx4_replace_zero_macs(struct mlx4_dev * dev)3097 void mlx4_replace_zero_macs(struct mlx4_dev *dev)
3098 {
3099 int i;
3100 u8 mac_addr[ETH_ALEN];
3101
3102 dev->port_random_macs = 0;
3103 for (i = 1; i <= dev->caps.num_ports; ++i)
3104 if (!dev->caps.def_mac[i] &&
3105 dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) {
3106 eth_random_addr(mac_addr);
3107 dev->port_random_macs |= 1 << i;
3108 dev->caps.def_mac[i] = mlx4_mac_to_u64(mac_addr);
3109 }
3110 }
3111 EXPORT_SYMBOL_GPL(mlx4_replace_zero_macs);
3112