1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
|
/*
* Copyright (C) 2017 Netronome Systems, Inc.
*
* This software is dual licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/etherdevice.h>
#include <linux/pci.h>
#include <linux/skbuff.h>
#include <linux/vmalloc.h>
#include <net/devlink.h>
#include <net/dst_metadata.h>
#include "main.h"
#include "../nfpcore/nfp_cpp.h"
#include "../nfpcore/nfp_nffw.h"
#include "../nfpcore/nfp_nsp.h"
#include "../nfp_app.h"
#include "../nfp_main.h"
#include "../nfp_net.h"
#include "../nfp_net_repr.h"
#include "../nfp_port.h"
#include "./cmsg.h"
#define NFP_FLOWER_ALLOWED_VER 0x0001000000010000UL
static const char *nfp_flower_extra_cap(struct nfp_app *app, struct nfp_net *nn)
{
return "FLOWER";
}
static enum devlink_eswitch_mode eswitch_mode_get(struct nfp_app *app)
{
return DEVLINK_ESWITCH_MODE_SWITCHDEV;
}
static enum nfp_repr_type
nfp_flower_repr_get_type_and_port(struct nfp_app *app, u32 port_id, u8 *port)
{
switch (FIELD_GET(NFP_FLOWER_CMSG_PORT_TYPE, port_id)) {
case NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT:
*port = FIELD_GET(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM,
port_id);
return NFP_REPR_TYPE_PHYS_PORT;
case NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT:
*port = FIELD_GET(NFP_FLOWER_CMSG_PORT_VNIC, port_id);
if (FIELD_GET(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, port_id) ==
NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF)
return NFP_REPR_TYPE_PF;
else
return NFP_REPR_TYPE_VF;
}
return NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC;
}
static struct net_device *
nfp_flower_repr_get(struct nfp_app *app, u32 port_id)
{
enum nfp_repr_type repr_type;
struct nfp_reprs *reprs;
u8 port = 0;
repr_type = nfp_flower_repr_get_type_and_port(app, port_id, &port);
reprs = rcu_dereference(app->reprs[repr_type]);
if (!reprs)
return NULL;
if (port >= reprs->num_reprs)
return NULL;
return reprs->reprs[port];
}
static int
nfp_flower_repr_netdev_open(struct nfp_app *app, struct nfp_repr *repr)
{
int err;
err = nfp_flower_cmsg_portmod(repr, true);
if (err)
return err;
netif_carrier_on(repr->netdev);
netif_tx_wake_all_queues(repr->netdev);
return 0;
}
static int
nfp_flower_repr_netdev_stop(struct nfp_app *app, struct nfp_repr *repr)
{
netif_carrier_off(repr->netdev);
netif_tx_disable(repr->netdev);
return nfp_flower_cmsg_portmod(repr, false);
}
static int
nfp_flower_repr_netdev_init(struct nfp_app *app, struct net_device *netdev)
{
return tc_setup_cb_egdev_register(netdev,
nfp_flower_setup_tc_egress_cb,
netdev_priv(netdev));
}
static void
nfp_flower_repr_netdev_clean(struct nfp_app *app, struct net_device *netdev)
{
tc_setup_cb_egdev_unregister(netdev, nfp_flower_setup_tc_egress_cb,
netdev_priv(netdev));
}
static void nfp_flower_sriov_disable(struct nfp_app *app)
{
struct nfp_flower_priv *priv = app->priv;
if (!priv->nn)
return;
nfp_reprs_clean_and_free_by_type(app, NFP_REPR_TYPE_VF);
}
static int
nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
enum nfp_flower_cmsg_port_vnic_type vnic_type,
enum nfp_repr_type repr_type, unsigned int cnt)
{
u8 nfp_pcie = nfp_cppcore_pcie_unit(app->pf->cpp);
struct nfp_flower_priv *priv = app->priv;
enum nfp_port_type port_type;
struct nfp_reprs *reprs;
const u8 queue = 0;
int i, err;
port_type = repr_type == NFP_REPR_TYPE_PF ? NFP_PORT_PF_PORT :
NFP_PORT_VF_PORT;
reprs = nfp_reprs_alloc(cnt);
if (!reprs)
return -ENOMEM;
for (i = 0; i < cnt; i++) {
struct nfp_port *port;
u32 port_id;
reprs->reprs[i] = nfp_repr_alloc(app);
if (!reprs->reprs[i]) {
err = -ENOMEM;
goto err_reprs_clean;
}
/* For now we only support 1 PF */
WARN_ON(repr_type == NFP_REPR_TYPE_PF && i);
port = nfp_port_alloc(app, port_type, reprs->reprs[i]);
if (repr_type == NFP_REPR_TYPE_PF) {
port->pf_id = i;
port->vnic = priv->nn->dp.ctrl_bar;
} else {
port->pf_id = 0;
port->vf_id = i;
port->vnic =
app->pf->vf_cfg_mem + i * NFP_NET_CFG_BAR_SZ;
}
eth_hw_addr_random(reprs->reprs[i]);
port_id = nfp_flower_cmsg_pcie_port(nfp_pcie, vnic_type,
i, queue);
err = nfp_repr_init(app, reprs->reprs[i],
port_id, port, priv->nn->dp.netdev);
if (err) {
nfp_port_free(port);
goto err_reprs_clean;
}
nfp_info(app->cpp, "%s%d Representor(%s) created\n",
repr_type == NFP_REPR_TYPE_PF ? "PF" : "VF", i,
reprs->reprs[i]->name);
}
nfp_app_reprs_set(app, repr_type, reprs);
return 0;
err_reprs_clean:
nfp_reprs_clean_and_free(reprs);
return err;
}
static int nfp_flower_sriov_enable(struct nfp_app *app, int num_vfs)
{
struct nfp_flower_priv *priv = app->priv;
if (!priv->nn)
return 0;
return nfp_flower_spawn_vnic_reprs(app,
NFP_FLOWER_CMSG_PORT_VNIC_TYPE_VF,
NFP_REPR_TYPE_VF, num_vfs);
}
static int
nfp_flower_spawn_phy_reprs(struct nfp_app *app, struct nfp_flower_priv *priv)
{
struct nfp_eth_table *eth_tbl = app->pf->eth_tbl;
struct sk_buff *ctrl_skb;
struct nfp_reprs *reprs;
unsigned int i;
int err;
ctrl_skb = nfp_flower_cmsg_mac_repr_start(app, eth_tbl->count);
if (!ctrl_skb)
return -ENOMEM;
reprs = nfp_reprs_alloc(eth_tbl->max_index + 1);
if (!reprs) {
err = -ENOMEM;
goto err_free_ctrl_skb;
}
for (i = 0; i < eth_tbl->count; i++) {
unsigned int phys_port = eth_tbl->ports[i].index;
struct nfp_port *port;
u32 cmsg_port_id;
reprs->reprs[phys_port] = nfp_repr_alloc(app);
if (!reprs->reprs[phys_port]) {
err = -ENOMEM;
goto err_reprs_clean;
}
port = nfp_port_alloc(app, NFP_PORT_PHYS_PORT,
reprs->reprs[phys_port]);
if (
|