1 /*-
2 * Copyright (c) 2015-2021 Mellanox Technologies. All rights reserved.
3 * Copyright (c) 2022 NVIDIA corporation & affiliates.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include "opt_ipsec.h"
28 #include "opt_kern_tls.h"
29 #include "opt_rss.h"
30 #include "opt_ratelimit.h"
31
32 #include <dev/mlx5/mlx5_en/en.h>
33 #include <dev/mlx5/mlx5_accel/ipsec.h>
34
35 #include <sys/eventhandler.h>
36 #include <sys/sockio.h>
37 #include <machine/atomic.h>
38
39 #include <net/debugnet.h>
40 #include <netinet/tcp_ratelimit.h>
41 #include <netipsec/keydb.h>
42 #include <netipsec/ipsec_offload.h>
43
44 static int mlx5e_get_wqe_sz(struct mlx5e_priv *priv, u32 *wqe_sz, u32 *nsegs);
45 static if_snd_tag_query_t mlx5e_ul_snd_tag_query;
46 static if_snd_tag_free_t mlx5e_ul_snd_tag_free;
47
48 struct mlx5e_channel_param {
49 struct mlx5e_rq_param rq;
50 struct mlx5e_sq_param sq;
51 struct mlx5e_cq_param rx_cq;
52 struct mlx5e_cq_param tx_cq;
53 };
54
55 struct media {
56 u32 subtype;
57 u64 baudrate;
58 };
59
60 static const struct media mlx5e_mode_table[MLX5E_LINK_SPEEDS_NUMBER] =
61 {
62 [MLX5E_1000BASE_CX_SGMII] = {
63 .subtype = IFM_1000_CX_SGMII,
64 .baudrate = IF_Mbps(1000ULL),
65 },
66 [MLX5E_1000BASE_KX] = {
67 .subtype = IFM_1000_KX,
68 .baudrate = IF_Mbps(1000ULL),
69 },
70 [MLX5E_10GBASE_CX4] = {
71 .subtype = IFM_10G_CX4,
72 .baudrate = IF_Gbps(10ULL),
73 },
74 [MLX5E_10GBASE_KX4] = {
75 .subtype = IFM_10G_KX4,
76 .baudrate = IF_Gbps(10ULL),
77 },
78 [MLX5E_10GBASE_KR] = {
79 .subtype = IFM_10G_KR,
80 .baudrate = IF_Gbps(10ULL),
81 },
82 [MLX5E_20GBASE_KR2] = {
83 .subtype = IFM_20G_KR2,
84 .baudrate = IF_Gbps(20ULL),
85 },
86 [MLX5E_40GBASE_CR4] = {
87 .subtype = IFM_40G_CR4,
88 .baudrate = IF_Gbps(40ULL),
89 },
90 [MLX5E_40GBASE_KR4] = {
91 .subtype = IFM_40G_KR4,
92 .baudrate = IF_Gbps(40ULL),
93 },
94 [MLX5E_56GBASE_R4] = {
95 .subtype = IFM_56G_R4,
96 .baudrate = IF_Gbps(56ULL),
97 },
98 [MLX5E_10GBASE_CR] = {
99 .subtype = IFM_10G_CR1,
100 .baudrate = IF_Gbps(10ULL),
101 },
102 [MLX5E_10GBASE_SR] = {
103 .subtype = IFM_10G_SR,
104 .baudrate = IF_Gbps(10ULL),
105 },
106 [MLX5E_10GBASE_ER_LR] = {
107 .subtype = IFM_10G_ER,
108 .baudrate = IF_Gbps(10ULL),
109 },
110 [MLX5E_40GBASE_SR4] = {
111 .subtype = IFM_40G_SR4,
112 .baudrate = IF_Gbps(40ULL),
113 },
114 [MLX5E_40GBASE_LR4_ER4] = {
115 .subtype = IFM_40G_LR4,
116 .baudrate = IF_Gbps(40ULL),
117 },
118 [MLX5E_100GBASE_CR4] = {
119 .subtype = IFM_100G_CR4,
120 .baudrate = IF_Gbps(100ULL),
121 },
122 [MLX5E_100GBASE_SR4] = {
123 .subtype = IFM_100G_SR4,
124 .baudrate = IF_Gbps(100ULL),
125 },
126 [MLX5E_100GBASE_KR4] = {
127 .subtype = IFM_100G_KR4,
128 .baudrate = IF_Gbps(100ULL),
129 },
130 [MLX5E_100GBASE_LR4] = {
131 .subtype = IFM_100G_LR4,
132 .baudrate = IF_Gbps(100ULL),
133 },
134 [MLX5E_100BASE_TX] = {
135 .subtype = IFM_100_TX,
136 .baudrate = IF_Mbps(100ULL),
137 },
138 [MLX5E_1000BASE_T] = {
139 .subtype = IFM_1000_T,
140 .baudrate = IF_Mbps(1000ULL),
141 },
142 [MLX5E_10GBASE_T] = {
143 .subtype = IFM_10G_T,
144 .baudrate = IF_Gbps(10ULL),
145 },
146 [MLX5E_25GBASE_CR] = {
147 .subtype = IFM_25G_CR,
148 .baudrate = IF_Gbps(25ULL),
149 },
150 [MLX5E_25GBASE_KR] = {
151 .subtype = IFM_25G_KR,
152 .baudrate = IF_Gbps(25ULL),
153 },
154 [MLX5E_25GBASE_SR] = {
155 .subtype = IFM_25G_SR,
156 .baudrate = IF_Gbps(25ULL),
157 },
158 [MLX5E_50GBASE_CR2] = {
159 .subtype = IFM_50G_CR2,
160 .baudrate = IF_Gbps(50ULL),
161 },
162 [MLX5E_50GBASE_KR2] = {
163 .subtype = IFM_50G_KR2,
164 .baudrate = IF_Gbps(50ULL),
165 },
166 [MLX5E_50GBASE_KR4] = {
167 .subtype = IFM_50G_KR4,
168 .baudrate = IF_Gbps(50ULL),
169 },
170 };
171
172 static const struct media mlx5e_ext_mode_table[MLX5E_EXT_LINK_SPEEDS_NUMBER][MLX5E_CABLE_TYPE_NUMBER] =
173 {
174 /**/
175 [MLX5E_SGMII_100M][MLX5E_CABLE_TYPE_UNKNOWN] = {
176 .subtype = IFM_100_SGMII,
177 .baudrate = IF_Mbps(100),
178 },
179
180 /**/
181 [MLX5E_1000BASE_X_SGMII][MLX5E_CABLE_TYPE_UNKNOWN] = {
182 .subtype = IFM_1000_CX,
183 .baudrate = IF_Mbps(1000),
184 },
185 [MLX5E_1000BASE_X_SGMII][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
186 .subtype = IFM_1000_SX,
187 .baudrate = IF_Mbps(1000),
188 },
189
190 /**/
191 [MLX5E_5GBASE_R][MLX5E_CABLE_TYPE_UNKNOWN] = {
192 .subtype = IFM_5000_KR,
193 .baudrate = IF_Mbps(5000),
194 },
195 [MLX5E_5GBASE_R][MLX5E_CABLE_TYPE_TWISTED_PAIR] = {
196 .subtype = IFM_5000_T,
197 .baudrate = IF_Mbps(5000),
198 },
199
200 /**/
201 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_UNKNOWN] = {
202 .subtype = IFM_10G_KR,
203 .baudrate = IF_Gbps(10ULL),
204 },
205 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
206 .subtype = IFM_10G_CR1,
207 .baudrate = IF_Gbps(10ULL),
208 },
209 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
210 .subtype = IFM_10G_SR,
211 .baudrate = IF_Gbps(10ULL),
212 },
213
214 /**/
215 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_UNKNOWN] = {
216 .subtype = IFM_40G_KR4,
217 .baudrate = IF_Gbps(40ULL),
218 },
219 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
220 .subtype = IFM_40G_CR4,
221 .baudrate = IF_Gbps(40ULL),
222 },
223 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
224 .subtype = IFM_40G_SR4,
225 .baudrate = IF_Gbps(40ULL),
226 },
227
228 /**/
229 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = {
230 .subtype = IFM_25G_KR,
231 .baudrate = IF_Gbps(25ULL),
232 },
233 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
234 .subtype = IFM_25G_CR,
235 .baudrate = IF_Gbps(25ULL),
236 },
237 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
238 .subtype = IFM_25G_SR,
239 .baudrate = IF_Gbps(25ULL),
240 },
241 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_TWISTED_PAIR] = {
242 .subtype = IFM_25G_T,
243 .baudrate = IF_Gbps(25ULL),
244 },
245
246 /**/
247 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = {
248 .subtype = IFM_50G_KR2,
249 .baudrate = IF_Gbps(50ULL),
250 },
251 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
252 .subtype = IFM_50G_CR2,
253 .baudrate = IF_Gbps(50ULL),
254 },
255 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
256 .subtype = IFM_50G_SR2,
257 .baudrate = IF_Gbps(50ULL),
258 },
259
260 /**/
261 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = {
262 .subtype = IFM_50G_KR_PAM4,
263 .baudrate = IF_Gbps(50ULL),
264 },
265 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
266 .subtype = IFM_50G_CP,
267 .baudrate = IF_Gbps(50ULL),
268 },
269 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
270 .subtype = IFM_50G_SR,
271 .baudrate = IF_Gbps(50ULL),
272 },
273
274 /**/
275 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = {
276 .subtype = IFM_100G_KR4,
277 .baudrate = IF_Gbps(100ULL),
278 },
279 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
280 .subtype = IFM_100G_CR4,
281 .baudrate = IF_Gbps(100ULL),
282 },
283 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
284 .subtype = IFM_100G_SR4,
285 .baudrate = IF_Gbps(100ULL),
286 },
287
288 /**/
289 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = {
290 .subtype = IFM_100G_KR_PAM4,
291 .baudrate = IF_Gbps(100ULL),
292 },
293 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
294 .subtype = IFM_100G_CR_PAM4,
295 .baudrate = IF_Gbps(100ULL),
296 },
297 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
298 .subtype = IFM_100G_SR2, /* XXX */
299 .baudrate = IF_Gbps(100ULL),
300 },
301
302 /**/
303 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = {
304 .subtype = IFM_100G_KR4,
305 .baudrate = IF_Gbps(100ULL),
306 },
307 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
308 .subtype = IFM_100G_CP2,
309 .baudrate = IF_Gbps(100ULL),
310 },
311 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
312 .subtype = IFM_100G_SR2,
313 .baudrate = IF_Gbps(100ULL),
314 },
315
316 /**/
317 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = {
318 .subtype = IFM_200G_KR4_PAM4, /* XXX */
319 .baudrate = IF_Gbps(200ULL),
320 },
321 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
322 .subtype = IFM_200G_CR4_PAM4, /* XXX */
323 .baudrate = IF_Gbps(200ULL),
324 },
325 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
326 .subtype = IFM_200G_SR4, /* XXX */
327 .baudrate = IF_Gbps(200ULL),
328 },
329
330 /**/
331 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = {
332 .subtype = IFM_200G_KR4_PAM4,
333 .baudrate = IF_Gbps(200ULL),
334 },
335 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = {
336 .subtype = IFM_200G_CR4_PAM4,
337 .baudrate = IF_Gbps(200ULL),
338 },
339 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = {
340 .subtype = IFM_200G_SR4,
341 .baudrate = IF_Gbps(200ULL),
342 },
343
344 /**/
345 [MLX5E_400GAUI_8][MLX5E_CABLE_TYPE_UNKNOWN] = {
346 .subtype = IFM_400G_LR8, /* XXX */
347 .baudrate = IF_Gbps(400ULL),
348 },
349
350 /**/
351 [MLX5E_400GAUI_4_400GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = {
352 .subtype = IFM_400G_LR8, /* XXX */
353 .baudrate = IF_Gbps(400ULL),
354 },
355 };
356
357 static const struct if_snd_tag_sw mlx5e_ul_snd_tag_sw = {
358 .snd_tag_query = mlx5e_ul_snd_tag_query,
359 .snd_tag_free = mlx5e_ul_snd_tag_free,
360 .type = IF_SND_TAG_TYPE_UNLIMITED
361 };
362
363 DEBUGNET_DEFINE(mlx5_en);
364
365 MALLOC_DEFINE(M_MLX5EN, "MLX5EN", "MLX5 Ethernet");
366
367 static void
mlx5e_update_carrier(struct mlx5e_priv * priv)368 mlx5e_update_carrier(struct mlx5e_priv *priv)
369 {
370 struct mlx5_core_dev *mdev = priv->mdev;
371 u32 out[MLX5_ST_SZ_DW(ptys_reg)];
372 u32 eth_proto_oper;
373 int error;
374 u8 i;
375 u8 cable_type;
376 u8 port_state;
377 u8 is_er_type;
378 bool ext;
379 struct media media_entry = {};
380
381 port_state = mlx5_query_vport_state(mdev,
382 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0);
383
384 if (port_state == VPORT_STATE_UP) {
385 priv->media_status_last |= IFM_ACTIVE;
386 } else {
387 priv->media_status_last &= ~IFM_ACTIVE;
388 priv->media_active_last = IFM_ETHER;
389 if_link_state_change(priv->ifp, LINK_STATE_DOWN);
390 return;
391 }
392
393 error = mlx5_query_port_ptys(mdev, out, sizeof(out),
394 MLX5_PTYS_EN, 1);
395 if (error) {
396 priv->media_active_last = IFM_ETHER;
397 if_setbaudrate(priv->ifp, 1);
398 mlx5_en_err(priv->ifp, "query port ptys failed: 0x%x\n",
399 error);
400 return;
401 }
402
403 ext = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet);
404 eth_proto_oper = MLX5_GET_ETH_PROTO(ptys_reg, out, ext,
405 eth_proto_oper);
406
407 i = ilog2(eth_proto_oper);
408
409 if (ext) {
410 error = mlx5_query_pddr_cable_type(mdev, 1, &cable_type);
411 if (error != 0) {
412 /* use fallback entry */
413 media_entry = mlx5e_ext_mode_table[i][MLX5E_CABLE_TYPE_UNKNOWN];
414
415 mlx5_en_err(priv->ifp,
416 "query port pddr failed: %d\n", error);
417 } else {
418 media_entry = mlx5e_ext_mode_table[i][cable_type];
419
420 /* check if we should use fallback entry */
421 if (media_entry.subtype == 0)
422 media_entry = mlx5e_ext_mode_table[i][MLX5E_CABLE_TYPE_UNKNOWN];
423 }
424 } else {
425 media_entry = mlx5e_mode_table[i];
426 }
427
428 if (media_entry.subtype == 0) {
429 mlx5_en_err(priv->ifp,
430 "Could not find operational media subtype\n");
431 return;
432 }
433
434 switch (media_entry.subtype) {
435 case IFM_10G_ER:
436 error = mlx5_query_pddr_range_info(mdev, 1, &is_er_type);
437 if (error != 0) {
438 mlx5_en_err(priv->ifp,
439 "query port pddr failed: %d\n", error);
440 }
441 if (error != 0 || is_er_type == 0)
442 media_entry.subtype = IFM_10G_LR;
443 break;
444 case IFM_40G_LR4:
445 error = mlx5_query_pddr_range_info(mdev, 1, &is_er_type);
446 if (error != 0) {
447 mlx5_en_err(priv->ifp,
448 "query port pddr failed: %d\n", error);
449 }
450 if (error == 0 && is_er_type != 0)
451 media_entry.subtype = IFM_40G_ER4;
452 break;
453 }
454 priv->media_active_last = media_entry.subtype | IFM_ETHER | IFM_FDX;
455 if_setbaudrate(priv->ifp, media_entry.baudrate);
456
457 if_link_state_change(priv->ifp, LINK_STATE_UP);
458 }
459
460 static void
mlx5e_media_status(if_t dev,struct ifmediareq * ifmr)461 mlx5e_media_status(if_t dev, struct ifmediareq *ifmr)
462 {
463 struct mlx5e_priv *priv = if_getsoftc(dev);
464
465 ifmr->ifm_status = priv->media_status_last;
466 ifmr->ifm_current = ifmr->ifm_active = priv->media_active_last |
467 (priv->params.rx_pauseframe_control ? IFM_ETH_RXPAUSE : 0) |
468 (priv->params.tx_pauseframe_control ? IFM_ETH_TXPAUSE : 0);
469
470 }
471
472 static u32
mlx5e_find_link_mode(u32 subtype,bool ext)473 mlx5e_find_link_mode(u32 subtype, bool ext)
474 {
475 u32 link_mode = 0;
476
477 switch (subtype) {
478 case 0:
479 goto done;
480 case IFM_10G_LR:
481 subtype = IFM_10G_ER;
482 break;
483 case IFM_40G_ER4:
484 subtype = IFM_40G_LR4;
485 break;
486 default:
487 break;
488 }
489
490 if (ext) {
491 for (unsigned i = 0; i != MLX5E_EXT_LINK_SPEEDS_NUMBER; i++) {
492 for (unsigned j = 0; j != MLX5E_CABLE_TYPE_NUMBER; j++) {
493 if (mlx5e_ext_mode_table[i][j].subtype == subtype)
494 link_mode |= MLX5E_PROT_MASK(i);
495 }
496 }
497 } else {
498 for (unsigned i = 0; i != MLX5E_LINK_SPEEDS_NUMBER; i++) {
499 if (mlx5e_mode_table[i].subtype == subtype)
500 link_mode |= MLX5E_PROT_MASK(i);
501 }
502 }
503 done:
504 return (link_mode);
505 }
506
507 static int
mlx5e_set_port_pause_and_pfc(struct mlx5e_priv * priv)508 mlx5e_set_port_pause_and_pfc(struct mlx5e_priv *priv)
509 {
510 return (mlx5_set_port_pause_and_pfc(priv->mdev, 1,
511 priv->params.rx_pauseframe_control,
512 priv->params.tx_pauseframe_control,
513 priv->params.rx_priority_flow_control,
514 priv->params.tx_priority_flow_control));
515 }
516
517 static int
mlx5e_set_port_pfc(struct mlx5e_priv * priv)518 mlx5e_set_port_pfc(struct mlx5e_priv *priv)
519 {
520 int error;
521
522 if (priv->gone != 0) {
523 error = -ENXIO;
524 } else if (priv->params.rx_pauseframe_control ||
525 priv->params.tx_pauseframe_control) {
526 mlx5_en_err(priv->ifp,
527 "Global pauseframes must be disabled before enabling PFC.\n");
528 error = -EINVAL;
529 } else {
530 error = mlx5e_set_port_pause_and_pfc(priv);
531 }
532 return (error);
533 }
534
535 static int
mlx5e_media_change(if_t dev)536 mlx5e_media_change(if_t dev)
537 {
538 struct mlx5e_priv *priv = if_getsoftc(dev);
539 struct mlx5_core_dev *mdev = priv->mdev;
540 u32 eth_proto_cap;
541 u32 link_mode;
542 u32 out[MLX5_ST_SZ_DW(ptys_reg)];
543 int was_opened;
544 int locked;
545 int error;
546 bool ext;
547
548 locked = PRIV_LOCKED(priv);
549 if (!locked)
550 PRIV_LOCK(priv);
551
552 if (IFM_TYPE(priv->media.ifm_media) != IFM_ETHER) {
553 error = EINVAL;
554 goto done;
555 }
556
557 error = mlx5_query_port_ptys(mdev, out, sizeof(out),
558 MLX5_PTYS_EN, 1);
559 if (error != 0) {
560 mlx5_en_err(dev, "Query port media capability failed\n");
561 goto done;
562 }
563
564 ext = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet);
565 link_mode = mlx5e_find_link_mode(IFM_SUBTYPE(priv->media.ifm_media), ext);
566
567 /* query supported capabilities */
568 eth_proto_cap = MLX5_GET_ETH_PROTO(ptys_reg, out, ext,
569 eth_proto_capability);
570
571 /* check for autoselect */
572 if (IFM_SUBTYPE(priv->media.ifm_media) == IFM_AUTO) {
573 link_mode = eth_proto_cap;
574 if (link_mode == 0) {
575 mlx5_en_err(dev, "Port media capability is zero\n");
576 error = EINVAL;
577 goto done;
578 }
579 } else {
580 link_mode = link_mode & eth_proto_cap;
581 if (link_mode == 0) {
582 mlx5_en_err(dev, "Not supported link mode requested\n");
583 error = EINVAL;
584 goto done;
585 }
586 }
587 if (priv->media.ifm_media & (IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE)) {
588 /* check if PFC is enabled */
589 if (priv->params.rx_priority_flow_control ||
590 priv->params.tx_priority_flow_control) {
591 mlx5_en_err(dev, "PFC must be disabled before enabling global pauseframes.\n");
592 error = EINVAL;
593 goto done;
594 }
595 }
596 /* update pauseframe control bits */
597 priv->params.rx_pauseframe_control =
598 (priv->media.ifm_media & IFM_ETH_RXPAUSE) ? 1 : 0;
599 priv->params.tx_pauseframe_control =
600 (priv->media.ifm_media & IFM_ETH_TXPAUSE) ? 1 : 0;
601
602 /* check if device is opened */
603 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
604
605 /* reconfigure the hardware */
606 mlx5_set_port_status(mdev, MLX5_PORT_DOWN);
607 mlx5_set_port_proto(mdev, link_mode, MLX5_PTYS_EN, ext);
608 error = -mlx5e_set_port_pause_and_pfc(priv);
609 if (was_opened)
610 mlx5_set_port_status(mdev, MLX5_PORT_UP);
611
612 done:
613 if (!locked)
614 PRIV_UNLOCK(priv);
615 return (error);
616 }
617
618 static void
mlx5e_update_carrier_work(struct work_struct * work)619 mlx5e_update_carrier_work(struct work_struct *work)
620 {
621 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
622 update_carrier_work);
623
624 PRIV_LOCK(priv);
625 if (test_bit(MLX5E_STATE_OPENED, &priv->state))
626 mlx5e_update_carrier(priv);
627 PRIV_UNLOCK(priv);
628 }
629
630 #define MLX5E_PCIE_PERF_GET_64(a,b,c,d,e,f) \
631 s_debug->c = MLX5_GET64(mpcnt_reg, out, counter_set.f.c);
632
633 #define MLX5E_PCIE_PERF_GET_32(a,b,c,d,e,f) \
634 s_debug->c = MLX5_GET(mpcnt_reg, out, counter_set.f.c);
635
636 static void
mlx5e_update_pcie_counters(struct mlx5e_priv * priv)637 mlx5e_update_pcie_counters(struct mlx5e_priv *priv)
638 {
639 struct mlx5_core_dev *mdev = priv->mdev;
640 struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug;
641 const unsigned sz = MLX5_ST_SZ_BYTES(mpcnt_reg);
642 void *out;
643 void *in;
644 int err;
645
646 /* allocate firmware request structures */
647 in = mlx5_vzalloc(sz);
648 out = mlx5_vzalloc(sz);
649 if (in == NULL || out == NULL)
650 goto free_out;
651
652 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP);
653 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
654 if (err != 0)
655 goto free_out;
656
657 MLX5E_PCIE_PERFORMANCE_COUNTERS_64(MLX5E_PCIE_PERF_GET_64)
658 MLX5E_PCIE_PERFORMANCE_COUNTERS_32(MLX5E_PCIE_PERF_GET_32)
659
660 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_TIMERS_AND_STATES_COUNTERS_GROUP);
661 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
662 if (err != 0)
663 goto free_out;
664
665 MLX5E_PCIE_TIMERS_AND_STATES_COUNTERS_32(MLX5E_PCIE_PERF_GET_32)
666
667 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_LANE_COUNTERS_GROUP);
668 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
669 if (err != 0)
670 goto free_out;
671
672 MLX5E_PCIE_LANE_COUNTERS_32(MLX5E_PCIE_PERF_GET_32)
673
674 free_out:
675 /* free firmware request structures */
676 kvfree(in);
677 kvfree(out);
678 }
679
680 /*
681 * This function reads the physical port counters from the firmware
682 * using a pre-defined layout defined by various MLX5E_PPORT_XXX()
683 * macros. The output is converted from big-endian 64-bit values into
684 * host endian ones and stored in the "priv->stats.pport" structure.
685 */
686 static void
mlx5e_update_pport_counters(struct mlx5e_priv * priv)687 mlx5e_update_pport_counters(struct mlx5e_priv *priv)
688 {
689 struct mlx5_core_dev *mdev = priv->mdev;
690 struct mlx5e_pport_stats *s = &priv->stats.pport;
691 struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug;
692 u32 *in;
693 u32 *out;
694 const u64 *ptr;
695 unsigned sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
696 unsigned x;
697 unsigned y;
698 unsigned z;
699
700 /* allocate firmware request structures */
701 in = mlx5_vzalloc(sz);
702 out = mlx5_vzalloc(sz);
703 if (in == NULL || out == NULL)
704 goto free_out;
705
706 /*
707 * Get pointer to the 64-bit counter set which is located at a
708 * fixed offset in the output firmware request structure:
709 */
710 ptr = (const uint64_t *)MLX5_ADDR_OF(ppcnt_reg, out, counter_set);
711
712 MLX5_SET(ppcnt_reg, in, local_port, 1);
713
714 /* read IEEE802_3 counter group using predefined counter layout */
715 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
716 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
717 for (x = 0, y = MLX5E_PPORT_PER_PRIO_STATS_NUM;
718 x != MLX5E_PPORT_IEEE802_3_STATS_NUM; x++, y++)
719 s->arg[y] = be64toh(ptr[x]);
720
721 /* read RFC2819 counter group using predefined counter layout */
722 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
723 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
724 for (x = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM; x++, y++)
725 s->arg[y] = be64toh(ptr[x]);
726
727 for (y = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM +
728 MLX5E_PPORT_RFC2819_STATS_DEBUG_NUM; x++, y++)
729 s_debug->arg[y] = be64toh(ptr[x]);
730
731 /* read RFC2863 counter group using predefined counter layout */
732 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
733 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
734 for (x = 0; x != MLX5E_PPORT_RFC2863_STATS_DEBUG_NUM; x++, y++)
735 s_debug->arg[y] = be64toh(ptr[x]);
736
737 /* read physical layer stats counter group using predefined counter layout */
738 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
739 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
740 for (x = 0; x != MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG_NUM; x++, y++)
741 s_debug->arg[y] = be64toh(ptr[x]);
742
743 /* read Extended Ethernet counter group using predefined counter layout */
744 MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP);
745 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
746 for (x = 0; x != MLX5E_PPORT_ETHERNET_EXTENDED_STATS_DEBUG_NUM; x++, y++)
747 s_debug->arg[y] = be64toh(ptr[x]);
748
749 /* read Extended Statistical Group */
750 if (MLX5_CAP_GEN(mdev, pcam_reg) &&
751 MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group) &&
752 MLX5_CAP_PCAM_FEATURE(mdev, per_lane_error_counters)) {
753 /* read Extended Statistical counter group using predefined counter layout */
754 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
755 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
756
757 for (x = 0; x != MLX5E_PPORT_STATISTICAL_DEBUG_NUM; x++, y++)
758 s_debug->arg[y] = be64toh(ptr[x]);
759 }
760
761 /* read PCIE counters */
762 mlx5e_update_pcie_counters(priv);
763
764 /* read per-priority counters */
765 MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
766
767 /* iterate all the priorities */
768 for (y = z = 0; z != MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO; z++) {
769 MLX5_SET(ppcnt_reg, in, prio_tc, z);
770 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
771
772 /* read per priority stats counter group using predefined counter layout */
773 for (x = 0; x != (MLX5E_PPORT_PER_PRIO_STATS_NUM /
774 MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO); x++, y++)
775 s->arg[y] = be64toh(ptr[x]);
776 }
777
778 free_out:
779 /* free firmware request structures */
780 kvfree(in);
781 kvfree(out);
782 }
783
784 static void
mlx5e_grp_vnic_env_update_stats(struct mlx5e_priv * priv)785 mlx5e_grp_vnic_env_update_stats(struct mlx5e_priv *priv)
786 {
787 u32 out[MLX5_ST_SZ_DW(query_vnic_env_out)] = {};
788 u32 in[MLX5_ST_SZ_DW(query_vnic_env_in)] = {};
789
790 if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard))
791 return;
792
793 MLX5_SET(query_vnic_env_in, in, opcode,
794 MLX5_CMD_OP_QUERY_VNIC_ENV);
795 MLX5_SET(query_vnic_env_in, in, op_mod, 0);
796 MLX5_SET(query_vnic_env_in, in, other_vport, 0);
797
798 if (mlx5_cmd_exec(priv->mdev, in, sizeof(in), out, sizeof(out)) != 0)
799 return;
800
801 priv->stats.vport.rx_steer_missed_packets =
802 MLX5_GET64(query_vnic_env_out, out,
803 vport_env.nic_receive_steering_discard);
804 }
805
806 /*
807 * This function is called regularly to collect all statistics
808 * counters from the firmware. The values can be viewed through the
809 * sysctl interface. Execution is serialized using the priv's global
810 * configuration lock.
811 */
812 static void
mlx5e_update_stats_locked(struct mlx5e_priv * priv)813 mlx5e_update_stats_locked(struct mlx5e_priv *priv)
814 {
815 struct mlx5_core_dev *mdev = priv->mdev;
816 struct mlx5e_vport_stats *s = &priv->stats.vport;
817 struct mlx5e_sq_stats *sq_stats;
818 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
819 u32 *out;
820 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
821 u64 tso_packets = 0;
822 u64 tso_bytes = 0;
823 u64 tx_queue_dropped = 0;
824 u64 tx_defragged = 0;
825 u64 tx_offload_none = 0;
826 u64 lro_packets = 0;
827 u64 lro_bytes = 0;
828 u64 sw_lro_queued = 0;
829 u64 sw_lro_flushed = 0;
830 u64 rx_csum_none = 0;
831 u64 rx_wqe_err = 0;
832 u64 rx_packets = 0;
833 u64 rx_bytes = 0;
834 u64 rx_decrypted_error = 0;
835 u64 rx_decrypted_ok = 0;
836 u32 rx_out_of_buffer = 0;
837 int error;
838 int i;
839 int j;
840
841 out = mlx5_vzalloc(outlen);
842 if (out == NULL)
843 goto free_out;
844
845 /* Collect firts the SW counters and then HW for consistency */
846 for (i = 0; i < priv->params.num_channels; i++) {
847 struct mlx5e_channel *pch = priv->channel + i;
848 struct mlx5e_rq *rq = &pch->rq;
849 struct mlx5e_rq_stats *rq_stats = &pch->rq.stats;
850
851 /* collect stats from LRO */
852 rq_stats->sw_lro_queued = rq->lro.lro_queued;
853 rq_stats->sw_lro_flushed = rq->lro.lro_flushed;
854 sw_lro_queued += rq_stats->sw_lro_queued;
855 sw_lro_flushed += rq_stats->sw_lro_flushed;
856 lro_packets += rq_stats->lro_packets;
857 lro_bytes += rq_stats->lro_bytes;
858 rx_csum_none += rq_stats->csum_none;
859 rx_wqe_err += rq_stats->wqe_err;
860 rx_packets += rq_stats->packets;
861 rx_bytes += rq_stats->bytes;
862 rx_decrypted_error += rq_stats->decrypted_error_packets;
863 rx_decrypted_ok += rq_stats->decrypted_ok_packets;
864
865 for (j = 0; j < priv->num_tc; j++) {
866 sq_stats = &pch->sq[j].stats;
867
868 tso_packets += sq_stats->tso_packets;
869 tso_bytes += sq_stats->tso_bytes;
870 tx_queue_dropped += sq_stats->dropped;
871 tx_queue_dropped += sq_stats->enobuf;
872 tx_defragged += sq_stats->defragged;
873 tx_offload_none += sq_stats->csum_offload_none;
874 }
875 }
876
877 #ifdef RATELIMIT
878 /* Collect statistics from all rate-limit queues */
879 for (j = 0; j < priv->rl.param.tx_worker_threads_def; j++) {
880 struct mlx5e_rl_worker *rlw = priv->rl.workers + j;
881
882 for (i = 0; i < priv->rl.param.tx_channels_per_worker_def; i++) {
883 struct mlx5e_rl_channel *channel = rlw->channels + i;
884 struct mlx5e_sq *sq = channel->sq;
885
886 if (sq == NULL)
887 continue;
888
889 sq_stats = &sq->stats;
890
891 tso_packets += sq_stats->tso_packets;
892 tso_bytes += sq_stats->tso_bytes;
893 tx_queue_dropped += sq_stats->dropped;
894 tx_queue_dropped += sq_stats->enobuf;
895 tx_defragged += sq_stats->defragged;
896 tx_offload_none += sq_stats->csum_offload_none;
897 }
898 }
899 #endif
900
901 /* update counters */
902 s->tso_packets = tso_packets;
903 s->tso_bytes = tso_bytes;
904 s->tx_queue_dropped = tx_queue_dropped;
905 s->tx_defragged = tx_defragged;
906 s->lro_packets = lro_packets;
907 s->lro_bytes = lro_bytes;
908 s->sw_lro_queued = sw_lro_queued;
909 s->sw_lro_flushed = sw_lro_flushed;
910 s->rx_csum_none = rx_csum_none;
911 s->rx_wqe_err = rx_wqe_err;
912 s->rx_packets = rx_packets;
913 s->rx_bytes = rx_bytes;
914 s->rx_decrypted_error_packets = rx_decrypted_error;
915 s->rx_decrypted_ok_packets = rx_decrypted_ok;
916
917 mlx5e_grp_vnic_env_update_stats(priv);
918
919 /* HW counters */
920 memset(in, 0, sizeof(in));
921
922 MLX5_SET(query_vport_counter_in, in, opcode,
923 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
924 MLX5_SET(query_vport_counter_in, in, op_mod, 0);
925 MLX5_SET(query_vport_counter_in, in, other_vport, 0);
926
927 memset(out, 0, outlen);
928
929 /* get number of out-of-buffer drops first */
930 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0 &&
931 mlx5_vport_query_out_of_rx_buffer(mdev, priv->counter_set_id,
932 &rx_out_of_buffer) == 0) {
933 s->rx_out_of_buffer = rx_out_of_buffer;
934 }
935
936 /* get port statistics */
937 if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen) == 0) {
938 #define MLX5_GET_CTR(out, x) \
939 MLX5_GET64(query_vport_counter_out, out, x)
940
941 s->rx_error_packets =
942 MLX5_GET_CTR(out, received_errors.packets);
943 s->rx_error_bytes =
944 MLX5_GET_CTR(out, received_errors.octets);
945 s->tx_error_packets =
946 MLX5_GET_CTR(out, transmit_errors.packets);
947 s->tx_error_bytes =
948 MLX5_GET_CTR(out, transmit_errors.octets);
949
950 s->rx_unicast_packets =
951 MLX5_GET_CTR(out, received_eth_unicast.packets);
952 s->rx_unicast_bytes =
953 MLX5_GET_CTR(out, received_eth_unicast.octets);
954 s->tx_unicast_packets =
955 MLX5_GET_CTR(out, transmitted_eth_unicast.packets);
956 s->tx_unicast_bytes =
957 MLX5_GET_CTR(out, transmitted_eth_unicast.octets);
958
959 s->rx_multicast_packets =
960 MLX5_GET_CTR(out, received_eth_multicast.packets);
961 s->rx_multicast_bytes =
962 MLX5_GET_CTR(out, received_eth_multicast.octets);
963 s->tx_multicast_packets =
964 MLX5_GET_CTR(out, transmitted_eth_multicast.packets);
965 s->tx_multicast_bytes =
966 MLX5_GET_CTR(out, transmitted_eth_multicast.octets);
967
968 s->rx_broadcast_packets =
969 MLX5_GET_CTR(out, received_eth_broadcast.packets);
970 s->rx_broadcast_bytes =
971 MLX5_GET_CTR(out, received_eth_broadcast.octets);
972 s->tx_broadcast_packets =
973 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
974 s->tx_broadcast_bytes =
975 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
976
977 s->tx_packets = s->tx_unicast_packets +
978 s->tx_multicast_packets + s->tx_broadcast_packets;
979 s->tx_bytes = s->tx_unicast_bytes + s->tx_multicast_bytes +
980 s->tx_broadcast_bytes;
981
982 /* Update calculated offload counters */
983 s->tx_csum_offload = s->tx_packets - tx_offload_none;
984 s->rx_csum_good = s->rx_packets - s->rx_csum_none;
985 }
986
987 /* Get physical port counters */
988 mlx5e_update_pport_counters(priv);
989
990 s->tx_jumbo_packets =
991 priv->stats.port_stats_debug.tx_stat_p1519to2047octets +
992 priv->stats.port_stats_debug.tx_stat_p2048to4095octets +
993 priv->stats.port_stats_debug.tx_stat_p4096to8191octets +
994 priv->stats.port_stats_debug.tx_stat_p8192to10239octets;
995
996 free_out:
997 kvfree(out);
998
999 /* Update diagnostics, if any */
1000 if (priv->params_ethtool.diag_pci_enable ||
1001 priv->params_ethtool.diag_general_enable) {
1002 error = mlx5_core_get_diagnostics_full(mdev,
1003 priv->params_ethtool.diag_pci_enable ? &priv->params_pci : NULL,
1004 priv->params_ethtool.diag_general_enable ? &priv->params_general : NULL);
1005 if (error != 0)
1006 mlx5_en_err(priv->ifp,
1007 "Failed reading diagnostics: %d\n", error);
1008 }
1009
1010 /* Update FEC, if any */
1011 error = mlx5e_fec_update(priv);
1012 if (error != 0 && error != EOPNOTSUPP) {
1013 mlx5_en_err(priv->ifp,
1014 "Updating FEC failed: %d\n", error);
1015 }
1016
1017 /* Update temperature, if any */
1018 if (priv->params_ethtool.hw_num_temp != 0) {
1019 error = mlx5e_hw_temperature_update(priv);
1020 if (error != 0 && error != EOPNOTSUPP) {
1021 mlx5_en_err(priv->ifp,
1022 "Updating temperature failed: %d\n", error);
1023 }
1024 }
1025 }
1026
1027 static void
mlx5e_update_stats_work(struct work_struct * work)1028 mlx5e_update_stats_work(struct work_struct *work)
1029 {
1030 struct mlx5e_priv *priv;
1031
1032 priv = container_of(work, struct mlx5e_priv, update_stats_work);
1033 PRIV_LOCK(priv);
1034 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0 &&
1035 !test_bit(MLX5_INTERFACE_STATE_TEARDOWN, &priv->mdev->intf_state))
1036 mlx5e_update_stats_locked(priv);
1037 PRIV_UNLOCK(priv);
1038 }
1039
1040 static void
mlx5e_update_stats(void * arg)1041 mlx5e_update_stats(void *arg)
1042 {
1043 struct mlx5e_priv *priv = arg;
1044
1045 queue_work(priv->wq, &priv->update_stats_work);
1046
1047 callout_reset(&priv->watchdog, hz / 4, &mlx5e_update_stats, priv);
1048 }
1049
1050 static void
mlx5e_async_event_sub(struct mlx5e_priv * priv,enum mlx5_dev_event event)1051 mlx5e_async_event_sub(struct mlx5e_priv *priv,
1052 enum mlx5_dev_event event)
1053 {
1054 switch (event) {
1055 case MLX5_DEV_EVENT_PORT_UP:
1056 case MLX5_DEV_EVENT_PORT_DOWN:
1057 queue_work(priv->wq, &priv->update_carrier_work);
1058 break;
1059
1060 default:
1061 break;
1062 }
1063 }
1064
1065 static void
mlx5e_async_event(struct mlx5_core_dev * mdev,void * vpriv,enum mlx5_dev_event event,unsigned long param)1066 mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
1067 enum mlx5_dev_event event, unsigned long param)
1068 {
1069 struct mlx5e_priv *priv = vpriv;
1070
1071 mtx_lock(&priv->async_events_mtx);
1072 if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
1073 mlx5e_async_event_sub(priv, event);
1074 mtx_unlock(&priv->async_events_mtx);
1075 }
1076
1077 static void
mlx5e_enable_async_events(struct mlx5e_priv * priv)1078 mlx5e_enable_async_events(struct mlx5e_priv *priv)
1079 {
1080 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
1081 }
1082
1083 static void
mlx5e_disable_async_events(struct mlx5e_priv * priv)1084 mlx5e_disable_async_events(struct mlx5e_priv *priv)
1085 {
1086 mtx_lock(&priv->async_events_mtx);
1087 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
1088 mtx_unlock(&priv->async_events_mtx);
1089 }
1090
1091 static void mlx5e_calibration_callout(void *arg);
1092 static int mlx5e_calibration_duration = 20;
1093 static int mlx5e_fast_calibration = 1;
1094 static int mlx5e_normal_calibration = 30;
1095
1096 static SYSCTL_NODE(_hw_mlx5, OID_AUTO, calibr, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
1097 "MLX5 timestamp calibration parameters");
1098
1099 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, duration, CTLFLAG_RWTUN,
1100 &mlx5e_calibration_duration, 0,
1101 "Duration of initial calibration");
1102 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, fast, CTLFLAG_RWTUN,
1103 &mlx5e_fast_calibration, 0,
1104 "Recalibration interval during initial calibration");
1105 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, normal, CTLFLAG_RWTUN,
1106 &mlx5e_normal_calibration, 0,
1107 "Recalibration interval during normal operations");
1108
1109 /*
1110 * Ignites the calibration process.
1111 */
1112 static void
mlx5e_reset_calibration_callout(struct mlx5e_priv * priv)1113 mlx5e_reset_calibration_callout(struct mlx5e_priv *priv)
1114 {
1115
1116 if (priv->clbr_done == 0)
1117 mlx5e_calibration_callout(priv);
1118 else
1119 callout_reset_sbt_curcpu(&priv->tstmp_clbr, (priv->clbr_done <
1120 mlx5e_calibration_duration ? mlx5e_fast_calibration :
1121 mlx5e_normal_calibration) * SBT_1S, 0,
1122 mlx5e_calibration_callout, priv, C_DIRECT_EXEC);
1123 }
1124
1125 static uint64_t
mlx5e_timespec2usec(const struct timespec * ts)1126 mlx5e_timespec2usec(const struct timespec *ts)
1127 {
1128
1129 return ((uint64_t)ts->tv_sec * 1000000000 + ts->tv_nsec);
1130 }
1131
1132 static uint64_t
mlx5e_hw_clock(struct mlx5e_priv * priv)1133 mlx5e_hw_clock(struct mlx5e_priv *priv)
1134 {
1135 struct mlx5_init_seg *iseg;
1136 uint32_t hw_h, hw_h1, hw_l;
1137
1138 iseg = priv->mdev->iseg;
1139 do {
1140 hw_h = ioread32be(&iseg->internal_timer_h);
1141 hw_l = ioread32be(&iseg->internal_timer_l);
1142 hw_h1 = ioread32be(&iseg->internal_timer_h);
1143 } while (hw_h1 != hw_h);
1144 return (((uint64_t)hw_h << 32) | hw_l);
1145 }
1146
1147 /*
1148 * The calibration callout, it runs either in the context of the
1149 * thread which enables calibration, or in callout. It takes the
1150 * snapshot of system and adapter clocks, then advances the pointers to
1151 * the calibration point to allow rx path to read the consistent data
1152 * lockless.
1153 */
1154 static void
mlx5e_calibration_callout(void * arg)1155 mlx5e_calibration_callout(void *arg)
1156 {
1157 struct mlx5e_priv *priv;
1158 struct mlx5e_clbr_point *next, *curr;
1159 struct timespec ts;
1160 int clbr_curr_next;
1161
1162 priv = arg;
1163 curr = &priv->clbr_points[priv->clbr_curr];
1164 clbr_curr_next = priv->clbr_curr + 1;
1165 if (clbr_curr_next >= nitems(priv->clbr_points))
1166 clbr_curr_next = 0;
1167 next = &priv->clbr_points[clbr_curr_next];
1168
1169 next->base_prev = curr->base_curr;
1170 next->clbr_hw_prev = curr->clbr_hw_curr;
1171
1172 next->clbr_hw_curr = mlx5e_hw_clock(priv);
1173 if (((next->clbr_hw_curr - curr->clbr_hw_curr) >> MLX5E_TSTMP_PREC) ==
1174 0) {
1175 if (priv->clbr_done != 0) {
1176 mlx5_en_err(priv->ifp,
1177 "HW failed tstmp frozen %#jx %#jx, disabling\n",
1178 next->clbr_hw_curr, curr->clbr_hw_prev);
1179 priv->clbr_done = 0;
1180 }
1181 atomic_store_rel_int(&curr->clbr_gen, 0);
1182 return;
1183 }
1184
1185 nanouptime(&ts);
1186 next->base_curr = mlx5e_timespec2usec(&ts);
1187
1188 curr->clbr_gen = 0;
1189 atomic_thread_fence_rel();
1190 priv->clbr_curr = clbr_curr_next;
1191 atomic_store_rel_int(&next->clbr_gen, ++(priv->clbr_gen));
1192
1193 if (priv->clbr_done < mlx5e_calibration_duration)
1194 priv->clbr_done++;
1195 mlx5e_reset_calibration_callout(priv);
1196 }
1197
1198 static const char *mlx5e_rq_stats_desc[] = {
1199 MLX5E_RQ_STATS(MLX5E_STATS_DESC)
1200 };
1201
1202 static int
mlx5e_create_rq(struct mlx5e_channel * c,struct mlx5e_rq_param * param,struct mlx5e_rq * rq)1203 mlx5e_create_rq(struct mlx5e_channel *c,
1204 struct mlx5e_rq_param *param,
1205 struct mlx5e_rq *rq)
1206 {
1207 struct mlx5e_priv *priv = c->priv;
1208 struct mlx5_core_dev *mdev = priv->mdev;
1209 char buffer[16];
1210 void *rqc = param->rqc;
1211 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
1212 int wq_sz;
1213 int err;
1214 int i;
1215 u32 nsegs, wqe_sz;
1216
1217 err = mlx5e_get_wqe_sz(priv, &wqe_sz, &nsegs);
1218 if (err != 0)
1219 goto done;
1220
1221 /* Create DMA descriptor TAG */
1222 if ((err = -bus_dma_tag_create(
1223 bus_get_dma_tag(mdev->pdev->dev.bsddev),
1224 1, /* any alignment */
1225 0, /* no boundary */
1226 BUS_SPACE_MAXADDR, /* lowaddr */
1227 BUS_SPACE_MAXADDR, /* highaddr */
1228 NULL, NULL, /* filter, filterarg */
1229 nsegs * wqe_sz, /* maxsize */
1230 nsegs, /* nsegments */
1231 nsegs * wqe_sz, /* maxsegsize */
1232 0, /* flags */
1233 NULL, NULL, /* lockfunc, lockfuncarg */
1234 &rq->dma_tag)))
1235 goto done;
1236
1237 err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq,
1238 &rq->wq_ctrl);
1239 if (err)
1240 goto err_free_dma_tag;
1241
1242 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
1243
1244 err = mlx5e_get_wqe_sz(priv, &rq->wqe_sz, &rq->nsegs);
1245 if (err != 0)
1246 goto err_rq_wq_destroy;
1247
1248 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
1249
1250 err = -tcp_lro_init_args(&rq->lro, priv->ifp, TCP_LRO_ENTRIES, wq_sz);
1251 if (err)
1252 goto err_rq_wq_destroy;
1253
1254 rq->mbuf = malloc_domainset(wq_sz * sizeof(rq->mbuf[0]), M_MLX5EN,
1255 mlx5_dev_domainset(mdev), M_WAITOK | M_ZERO);
1256 for (i = 0; i != wq_sz; i++) {
1257 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
1258 int j;
1259
1260 err = -bus_dmamap_create(rq->dma_tag, 0, &rq->mbuf[i].dma_map);
1261 if (err != 0) {
1262 while (i--)
1263 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map);
1264 goto err_rq_mbuf_free;
1265 }
1266
1267 /* set value for constant fields */
1268 for (j = 0; j < rq->nsegs; j++)
1269 wqe->data[j].lkey = cpu_to_be32(priv->mr.key);
1270 }
1271
1272 INIT_WORK(&rq->dim.work, mlx5e_dim_work);
1273 if (priv->params.rx_cq_moderation_mode < 2) {
1274 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED;
1275 } else {
1276 void *cqc = container_of(param,
1277 struct mlx5e_channel_param, rq)->rx_cq.cqc;
1278
1279 switch (MLX5_GET(cqc, cqc, cq_period_mode)) {
1280 case MLX5_CQ_PERIOD_MODE_START_FROM_EQE:
1281 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
1282 break;
1283 case MLX5_CQ_PERIOD_MODE_START_FROM_CQE:
1284 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE;
1285 break;
1286 default:
1287 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED;
1288 break;
1289 }
1290 }
1291
1292 rq->ifp = priv->ifp;
1293 rq->channel = c;
1294 rq->ix = c->ix;
1295
1296 snprintf(buffer, sizeof(buffer), "rxstat%d", c->ix);
1297 mlx5e_create_stats(&rq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
1298 buffer, mlx5e_rq_stats_desc, MLX5E_RQ_STATS_NUM,
1299 rq->stats.arg);
1300 return (0);
1301
1302 err_rq_mbuf_free:
1303 free(rq->mbuf, M_MLX5EN);
1304 tcp_lro_free(&rq->lro);
1305 err_rq_wq_destroy:
1306 mlx5_wq_destroy(&rq->wq_ctrl);
1307 err_free_dma_tag:
1308 bus_dma_tag_destroy(rq->dma_tag);
1309 done:
1310 return (err);
1311 }
1312
1313 static void
mlx5e_destroy_rq(struct mlx5e_rq * rq)1314 mlx5e_destroy_rq(struct mlx5e_rq *rq)
1315 {
1316 int wq_sz;
1317 int i;
1318
1319 /* destroy all sysctl nodes */
1320 sysctl_ctx_free(&rq->stats.ctx);
1321
1322 /* free leftover LRO packets, if any */
1323 tcp_lro_free(&rq->lro);
1324
1325 wq_sz = mlx5_wq_ll_get_size(&rq->wq);
1326 for (i = 0; i != wq_sz; i++) {
1327 if (rq->mbuf[i].mbuf != NULL) {
1328 if (rq->mbuf[i].ipsec_mtag != NULL)
1329 m_tag_free(&rq->mbuf[i].ipsec_mtag->tag);
1330 bus_dmamap_unload(rq->dma_tag, rq->mbuf[i].dma_map);
1331 m_freem(rq->mbuf[i].mbuf);
1332 }
1333 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map);
1334 }
1335 free(rq->mbuf, M_MLX5EN);
1336 mlx5_wq_destroy(&rq->wq_ctrl);
1337 bus_dma_tag_destroy(rq->dma_tag);
1338 }
1339
1340 static int
mlx5e_enable_rq(struct mlx5e_rq * rq,struct mlx5e_rq_param * param)1341 mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
1342 {
1343 struct mlx5e_channel *c = rq->channel;
1344 struct mlx5e_priv *priv = c->priv;
1345 struct mlx5_core_dev *mdev = priv->mdev;
1346 void *in;
1347 void *rqc;
1348 void *wq;
1349 int inlen;
1350 int err;
1351 u8 ts_format;
1352
1353 inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
1354 sizeof(u64) * rq->wq_ctrl.buf.npages;
1355 in = mlx5_vzalloc(inlen);
1356 if (in == NULL)
1357 return (-ENOMEM);
1358
1359 ts_format = mlx5_get_rq_default_ts(mdev);
1360 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
1361 wq = MLX5_ADDR_OF(rqc, rqc, wq);
1362
1363 memcpy(rqc, param->rqc, sizeof(param->rqc));
1364
1365 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
1366 MLX5_SET(rqc, rqc, ts_format, ts_format);
1367 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
1368 if (priv->counter_set_id >= 0)
1369 MLX5_SET(rqc, rqc, counter_set_id, priv->counter_set_id);
1370 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
1371 MLX5_ADAPTER_PAGE_SHIFT);
1372 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
1373
1374 mlx5_fill_page_array(&rq->wq_ctrl.buf,
1375 (__be64 *) MLX5_ADDR_OF(wq, wq, pas));
1376
1377 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
1378
1379 kvfree(in);
1380
1381 return (err);
1382 }
1383
1384 static int
mlx5e_modify_rq(struct mlx5e_rq * rq,int curr_state,int next_state)1385 mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state)
1386 {
1387 struct mlx5e_channel *c = rq->channel;
1388 struct mlx5e_priv *priv = c->priv;
1389 struct mlx5_core_dev *mdev = priv->mdev;
1390
1391 void *in;
1392 void *rqc;
1393 int inlen;
1394 int err;
1395
1396 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
1397 in = mlx5_vzalloc(inlen);
1398 if (in == NULL)
1399 return (-ENOMEM);
1400
1401 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
1402
1403 MLX5_SET(modify_rq_in, in, rqn, rq->rqn);
1404 MLX5_SET(modify_rq_in, in, rq_state, curr_state);
1405 MLX5_SET(rqc, rqc, state, next_state);
1406
1407 err = mlx5_core_modify_rq(mdev, in, inlen);
1408
1409 kvfree(in);
1410
1411 return (err);
1412 }
1413
1414 static void
mlx5e_disable_rq(struct mlx5e_rq * rq)1415 mlx5e_disable_rq(struct mlx5e_rq *rq)
1416 {
1417 struct mlx5e_channel *c = rq->channel;
1418 struct mlx5e_priv *priv = c->priv;
1419 struct mlx5_core_dev *mdev = priv->mdev;
1420
1421 mlx5_core_destroy_rq(mdev, rq->rqn);
1422 }
1423
1424 static int
mlx5e_open_rq(struct mlx5e_channel * c,struct mlx5e_rq_param * param,struct mlx5e_rq * rq)1425 mlx5e_open_rq(struct mlx5e_channel *c,
1426 struct mlx5e_rq_param *param,
1427 struct mlx5e_rq *rq)
1428 {
1429 int err;
1430
1431 err = mlx5e_create_rq(c, param, rq);
1432 if (err)
1433 return (err);
1434
1435 /* set CQN in RQ parameters */
1436 MLX5_SET(rqc, param->rqc, cqn, c->rq.cq.mcq.cqn);
1437
1438 err = mlx5e_enable_rq(rq, param);
1439 if (err)
1440 goto err_destroy_rq;
1441
1442 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
1443 if (err)
1444 goto err_disable_rq;
1445
1446 c->rq.enabled = 1;
1447
1448 return (0);
1449
1450 err_disable_rq:
1451 mlx5e_disable_rq(rq);
1452 err_destroy_rq:
1453 mlx5e_destroy_rq(rq);
1454
1455 return (err);
1456 }
1457
1458 static void
mlx5e_close_rq(struct mlx5e_rq * rq)1459 mlx5e_close_rq(struct mlx5e_rq *rq)
1460 {
1461 mtx_lock(&rq->mtx);
1462 rq->enabled = 0;
1463 callout_stop(&rq->watchdog);
1464 mtx_unlock(&rq->mtx);
1465
1466 mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
1467 }
1468
1469 static void
mlx5e_close_rq_wait(struct mlx5e_rq * rq)1470 mlx5e_close_rq_wait(struct mlx5e_rq *rq)
1471 {
1472
1473 mlx5e_disable_rq(rq);
1474 mlx5e_close_cq(&rq->cq);
1475 cancel_work_sync(&rq->dim.work);
1476 mlx5e_destroy_rq(rq);
1477 }
1478
1479 /*
1480 * What is a drop RQ and why is it needed?
1481 *
1482 * The RSS indirection table, also called the RQT, selects the
1483 * destination RQ based on the receive queue number, RQN. The RQT is
1484 * frequently referred to by flow steering rules to distribute traffic
1485 * among multiple RQs. The problem is that the RQs cannot be destroyed
1486 * before the RQT referring them is destroyed too. Further, TLS RX
1487 * rules may still be referring to the RQT even if the link went
1488 * down. Because there is no magic RQN for dropping packets, we create
1489 * a dummy RQ, also called drop RQ, which sole purpose is to drop all
1490 * received packets. When the link goes down this RQN is filled in all
1491 * RQT entries, of the main RQT, so the real RQs which are about to be
1492 * destroyed can be released and the TLS RX rules can be sustained.
1493 */
1494 static void
mlx5e_open_drop_rq_comp(struct mlx5_core_cq * mcq __unused,struct mlx5_eqe * eqe __unused)1495 mlx5e_open_drop_rq_comp(struct mlx5_core_cq *mcq __unused, struct mlx5_eqe *eqe __unused)
1496 {
1497 }
1498
1499 static int
mlx5e_open_drop_rq(struct mlx5e_priv * priv,struct mlx5e_rq * drop_rq)1500 mlx5e_open_drop_rq(struct mlx5e_priv *priv,
1501 struct mlx5e_rq *drop_rq)
1502 {
1503 struct mlx5e_cq_param param_cq = {};
1504 struct mlx5e_rq_param param_rq = {};
1505 void *rqc_wq = MLX5_ADDR_OF(rqc, param_rq.rqc, wq);
1506 int err;
1507
1508 /* set channel pointer */
1509 drop_rq->channel = priv->channel;
1510
1511 /* set basic CQ parameters needed */
1512 MLX5_SET(cqc, param_cq.cqc, log_cq_size, 0);
1513 MLX5_SET(cqc, param_cq.cqc, uar_page, priv->mdev->priv.uar->index);
1514
1515 /* open receive completion queue */
1516 err = mlx5e_open_cq(priv, ¶m_cq, &drop_rq->cq,
1517 &mlx5e_open_drop_rq_comp, 0);
1518 if (err)
1519 goto err_done;
1520
1521 /* set basic WQ parameters needed */
1522 MLX5_SET(wq, rqc_wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1523 MLX5_SET(wq, rqc_wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1524 MLX5_SET(wq, rqc_wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe) + sizeof(struct mlx5_wqe_data_seg)));
1525 MLX5_SET(wq, rqc_wq, log_wq_sz, 0);
1526 MLX5_SET(wq, rqc_wq, pd, priv->pdn);
1527
1528 param_rq.wq.linear = 1;
1529
1530 err = mlx5_wq_ll_create(priv->mdev, ¶m_rq.wq, rqc_wq, &drop_rq->wq,
1531 &drop_rq->wq_ctrl);
1532 if (err)
1533 goto err_close_cq;
1534
1535 /* set CQN in RQ parameters */
1536 MLX5_SET(rqc, param_rq.rqc, cqn, drop_rq->cq.mcq.cqn);
1537
1538 err = mlx5e_enable_rq(drop_rq, ¶m_rq);
1539 if (err)
1540 goto err_wq_destroy;
1541
1542 err = mlx5e_modify_rq(drop_rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
1543 if (err)
1544 goto err_disable_rq;
1545
1546 return (err);
1547
1548 err_disable_rq:
1549 mlx5e_disable_rq(drop_rq);
1550 err_wq_destroy:
1551 mlx5_wq_destroy(&drop_rq->wq_ctrl);
1552 err_close_cq:
1553 mlx5e_close_cq(&drop_rq->cq);
1554 err_done:
1555 return (err);
1556 }
1557
1558 static void
mlx5e_close_drop_rq(struct mlx5e_rq * drop_rq)1559 mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq)
1560 {
1561 mlx5e_modify_rq(drop_rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
1562 mlx5e_disable_rq(drop_rq);
1563 mlx5_wq_destroy(&drop_rq->wq_ctrl);
1564 mlx5e_close_cq(&drop_rq->cq);
1565 }
1566
1567 void
mlx5e_free_sq_db(struct mlx5e_sq * sq)1568 mlx5e_free_sq_db(struct mlx5e_sq *sq)
1569 {
1570 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1571 int x;
1572
1573 for (x = 0; x != wq_sz; x++) {
1574 if (sq->mbuf[x].mbuf != NULL) {
1575 bus_dmamap_unload(sq->dma_tag, sq->mbuf[x].dma_map);
1576 m_freem(sq->mbuf[x].mbuf);
1577 }
1578 if (sq->mbuf[x].mst != NULL) {
1579 m_snd_tag_rele(sq->mbuf[x].mst);
1580 sq->mbuf[x].mst = NULL;
1581 }
1582 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map);
1583 }
1584 free(sq->mbuf, M_MLX5EN);
1585 }
1586
1587 int
mlx5e_alloc_sq_db(struct mlx5e_sq * sq)1588 mlx5e_alloc_sq_db(struct mlx5e_sq *sq)
1589 {
1590 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1591 int err;
1592 int x;
1593
1594 sq->mbuf = malloc_domainset(wq_sz * sizeof(sq->mbuf[0]), M_MLX5EN,
1595 mlx5_dev_domainset(sq->priv->mdev), M_WAITOK | M_ZERO);
1596
1597 /* Create DMA descriptor MAPs */
1598 for (x = 0; x != wq_sz; x++) {
1599 err = -bus_dmamap_create(sq->dma_tag, 0, &sq->mbuf[x].dma_map);
1600 if (err != 0) {
1601 while (x--)
1602 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map);
1603 free(sq->mbuf, M_MLX5EN);
1604 return (err);
1605 }
1606 }
1607 return (0);
1608 }
1609
1610 static const char *mlx5e_sq_stats_desc[] = {
1611 MLX5E_SQ_STATS(MLX5E_STATS_DESC)
1612 };
1613
1614 void
mlx5e_update_sq_inline(struct mlx5e_sq * sq)1615 mlx5e_update_sq_inline(struct mlx5e_sq *sq)
1616 {
1617 sq->max_inline = sq->priv->params.tx_max_inline;
1618 sq->min_inline_mode = sq->priv->params.tx_min_inline_mode;
1619
1620 /*
1621 * Check if trust state is DSCP or if inline mode is NONE which
1622 * indicates CX-5 or newer hardware.
1623 */
1624 if (sq->priv->params_ethtool.trust_state != MLX5_QPTS_TRUST_PCP ||
1625 sq->min_inline_mode == MLX5_INLINE_MODE_NONE) {
1626 if (MLX5_CAP_ETH(sq->priv->mdev, wqe_vlan_insert))
1627 sq->min_insert_caps = MLX5E_INSERT_VLAN | MLX5E_INSERT_NON_VLAN;
1628 else
1629 sq->min_insert_caps = MLX5E_INSERT_NON_VLAN;
1630 } else {
1631 sq->min_insert_caps = 0;
1632 }
1633 }
1634
1635 static void
mlx5e_refresh_sq_inline_sub(struct mlx5e_priv * priv,struct mlx5e_channel * c)1636 mlx5e_refresh_sq_inline_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c)
1637 {
1638 int i;
1639
1640 for (i = 0; i != priv->num_tc; i++) {
1641 mtx_lock(&c->sq[i].lock);
1642 mlx5e_update_sq_inline(&c->sq[i]);
1643 mtx_unlock(&c->sq[i].lock);
1644 }
1645 }
1646
1647 void
mlx5e_refresh_sq_inline(struct mlx5e_priv * priv)1648 mlx5e_refresh_sq_inline(struct mlx5e_priv *priv)
1649 {
1650 int i;
1651
1652 /* check if channels are closed */
1653 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
1654 return;
1655
1656 for (i = 0; i < priv->params.num_channels; i++)
1657 mlx5e_refresh_sq_inline_sub(priv, &priv->channel[i]);
1658 }
1659
1660 static int
mlx5e_create_sq(struct mlx5e_channel * c,int tc,struct mlx5e_sq_param * param,struct mlx5e_sq * sq)1661 mlx5e_create_sq(struct mlx5e_channel *c,
1662 int tc,
1663 struct mlx5e_sq_param *param,
1664 struct mlx5e_sq *sq)
1665 {
1666 struct mlx5e_priv *priv = c->priv;
1667 struct mlx5_core_dev *mdev = priv->mdev;
1668 char buffer[16];
1669 void *sqc = param->sqc;
1670 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
1671 int err;
1672
1673 /* Create DMA descriptor TAG */
1674 if ((err = -bus_dma_tag_create(
1675 bus_get_dma_tag(mdev->pdev->dev.bsddev),
1676 1, /* any alignment */
1677 0, /* no boundary */
1678 BUS_SPACE_MAXADDR, /* lowaddr */
1679 BUS_SPACE_MAXADDR, /* highaddr */
1680 NULL, NULL, /* filter, filterarg */
1681 MLX5E_MAX_TX_PAYLOAD_SIZE, /* maxsize */
1682 MLX5E_MAX_TX_MBUF_FRAGS, /* nsegments */
1683 MLX5E_MAX_TX_MBUF_SIZE, /* maxsegsize */
1684 0, /* flags */
1685 NULL, NULL, /* lockfunc, lockfuncarg */
1686 &sq->dma_tag)))
1687 goto done;
1688
1689 sq->mkey_be = cpu_to_be32(priv->mr.key);
1690 sq->ifp = priv->ifp;
1691 sq->priv = priv;
1692 sq->tc = tc;
1693
1694 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq,
1695 &sq->wq_ctrl);
1696 if (err)
1697 goto err_free_dma_tag;
1698
1699 sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
1700
1701 err = mlx5e_alloc_sq_db(sq);
1702 if (err)
1703 goto err_sq_wq_destroy;
1704
1705 mlx5e_update_sq_inline(sq);
1706
1707 snprintf(buffer, sizeof(buffer), "txstat%dtc%d", c->ix, tc);
1708 mlx5e_create_stats(&sq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
1709 buffer, mlx5e_sq_stats_desc, MLX5E_SQ_STATS_NUM,
1710 sq->stats.arg);
1711
1712 return (0);
1713
1714 err_sq_wq_destroy:
1715 mlx5_wq_destroy(&sq->wq_ctrl);
1716
1717 err_free_dma_tag:
1718 bus_dma_tag_destroy(sq->dma_tag);
1719 done:
1720 return (err);
1721 }
1722
1723 static void
mlx5e_destroy_sq(struct mlx5e_sq * sq)1724 mlx5e_destroy_sq(struct mlx5e_sq *sq)
1725 {
1726 /* destroy all sysctl nodes */
1727 sysctl_ctx_free(&sq->stats.ctx);
1728
1729 mlx5e_free_sq_db(sq);
1730 mlx5_wq_destroy(&sq->wq_ctrl);
1731 bus_dma_tag_destroy(sq->dma_tag);
1732 }
1733
1734 int
mlx5e_enable_sq(struct mlx5e_sq * sq,struct mlx5e_sq_param * param,const struct mlx5_sq_bfreg * bfreg,int tis_num)1735 mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param,
1736 const struct mlx5_sq_bfreg *bfreg, int tis_num)
1737 {
1738 void *in;
1739 void *sqc;
1740 void *wq;
1741 int inlen;
1742 int err;
1743 u8 ts_format;
1744
1745 inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
1746 sizeof(u64) * sq->wq_ctrl.buf.npages;
1747 in = mlx5_vzalloc(inlen);
1748 if (in == NULL)
1749 return (-ENOMEM);
1750
1751 sq->uar_map = bfreg->map;
1752
1753 ts_format = mlx5_get_sq_default_ts(sq->priv->mdev);
1754 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1755 wq = MLX5_ADDR_OF(sqc, sqc, wq);
1756
1757 memcpy(sqc, param->sqc, sizeof(param->sqc));
1758
1759 MLX5_SET(sqc, sqc, tis_num_0, tis_num);
1760 MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn);
1761 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
1762 MLX5_SET(sqc, sqc, ts_format, ts_format);
1763 MLX5_SET(sqc, sqc, tis_lst_sz, 1);
1764 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
1765 MLX5_SET(sqc, sqc, allow_swp, 1);
1766
1767 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1768 MLX5_SET(wq, wq, uar_page, bfreg->index);
1769 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
1770 MLX5_ADAPTER_PAGE_SHIFT);
1771 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
1772
1773 mlx5_fill_page_array(&sq->wq_ctrl.buf,
1774 (__be64 *) MLX5_ADDR_OF(wq, wq, pas));
1775
1776 err = mlx5_core_create_sq(sq->priv->mdev, in, inlen, &sq->sqn);
1777
1778 kvfree(in);
1779
1780 return (err);
1781 }
1782
1783 int
mlx5e_modify_sq(struct mlx5e_sq * sq,int curr_state,int next_state)1784 mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
1785 {
1786 void *in;
1787 void *sqc;
1788 int inlen;
1789 int err;
1790
1791 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
1792 in = mlx5_vzalloc(inlen);
1793 if (in == NULL)
1794 return (-ENOMEM);
1795
1796 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
1797
1798 MLX5_SET(modify_sq_in, in, sqn, sq->sqn);
1799 MLX5_SET(modify_sq_in, in, sq_state, curr_state);
1800 MLX5_SET(sqc, sqc, state, next_state);
1801
1802 err = mlx5_core_modify_sq(sq->priv->mdev, in, inlen);
1803
1804 kvfree(in);
1805
1806 return (err);
1807 }
1808
1809 void
mlx5e_disable_sq(struct mlx5e_sq * sq)1810 mlx5e_disable_sq(struct mlx5e_sq *sq)
1811 {
1812
1813 mlx5_core_destroy_sq(sq->priv->mdev, sq->sqn);
1814 }
1815
1816 static int
mlx5e_open_sq(struct mlx5e_channel * c,int tc,struct mlx5e_sq_param * param,struct mlx5e_sq * sq)1817 mlx5e_open_sq(struct mlx5e_channel *c,
1818 int tc,
1819 struct mlx5e_sq_param *param,
1820 struct mlx5e_sq *sq)
1821 {
1822 int err;
1823
1824 sq->cev_factor = c->priv->params_ethtool.tx_completion_fact;
1825
1826 /* ensure the TX completion event factor is not zero */
1827 if (sq->cev_factor == 0)
1828 sq->cev_factor = 1;
1829
1830 err = mlx5e_create_sq(c, tc, param, sq);
1831 if (err)
1832 return (err);
1833
1834 err = mlx5e_enable_sq(sq, param, &c->bfreg, c->priv->tisn[tc]);
1835 if (err)
1836 goto err_destroy_sq;
1837
1838 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
1839 if (err)
1840 goto err_disable_sq;
1841
1842 WRITE_ONCE(sq->running, 1);
1843
1844 return (0);
1845
1846 err_disable_sq:
1847 mlx5e_disable_sq(sq);
1848 err_destroy_sq:
1849 mlx5e_destroy_sq(sq);
1850
1851 return (err);
1852 }
1853
1854 static void
mlx5e_sq_send_nops_locked(struct mlx5e_sq * sq,int can_sleep)1855 mlx5e_sq_send_nops_locked(struct mlx5e_sq *sq, int can_sleep)
1856 {
1857 /* fill up remainder with NOPs */
1858 while (sq->cev_counter != 0) {
1859 while (!mlx5e_sq_has_room_for(sq, 1)) {
1860 if (can_sleep != 0) {
1861 mtx_unlock(&sq->lock);
1862 msleep(4);
1863 mtx_lock(&sq->lock);
1864 } else {
1865 goto done;
1866 }
1867 }
1868 /* send a single NOP */
1869 mlx5e_send_nop(sq, 1);
1870 atomic_thread_fence_rel();
1871 }
1872 done:
1873 mlx5e_tx_notify_hw(sq, false);
1874 }
1875
1876 void
mlx5e_sq_cev_timeout(void * arg)1877 mlx5e_sq_cev_timeout(void *arg)
1878 {
1879 struct mlx5e_sq *sq = arg;
1880
1881 mtx_assert(&sq->lock, MA_OWNED);
1882
1883 /* check next state */
1884 switch (sq->cev_next_state) {
1885 case MLX5E_CEV_STATE_SEND_NOPS:
1886 /* fill TX ring with NOPs, if any */
1887 mlx5e_sq_send_nops_locked(sq, 0);
1888
1889 /* check if completed */
1890 if (sq->cev_counter == 0) {
1891 sq->cev_next_state = MLX5E_CEV_STATE_INITIAL;
1892 return;
1893 }
1894 break;
1895 default:
1896 /* send NOPs on next timeout */
1897 sq->cev_next_state = MLX5E_CEV_STATE_SEND_NOPS;
1898 break;
1899 }
1900
1901 /* restart timer */
1902 callout_reset_curcpu(&sq->cev_callout, hz, mlx5e_sq_cev_timeout, sq);
1903 }
1904
1905 void
mlx5e_drain_sq(struct mlx5e_sq * sq)1906 mlx5e_drain_sq(struct mlx5e_sq *sq)
1907 {
1908 int error;
1909 struct mlx5_core_dev *mdev= sq->priv->mdev;
1910
1911 /*
1912 * Check if already stopped.
1913 *
1914 * NOTE: Serialization of this function is managed by the
1915 * caller ensuring the priv's state lock is locked or in case
1916 * of rate limit support, a single thread manages drain and
1917 * resume of SQs. The "running" variable can therefore safely
1918 * be read without any locks.
1919 */
1920 if (READ_ONCE(sq->running) == 0)
1921 return;
1922
1923 /* don't put more packets into the SQ */
1924 WRITE_ONCE(sq->running, 0);
1925
1926 /* serialize access to DMA rings */
1927 mtx_lock(&sq->lock);
1928
1929 /* teardown event factor timer, if any */
1930 sq->cev_next_state = MLX5E_CEV_STATE_HOLD_NOPS;
1931 callout_stop(&sq->cev_callout);
1932
1933 /* send dummy NOPs in order to flush the transmit ring */
1934 mlx5e_sq_send_nops_locked(sq, 1);
1935 mtx_unlock(&sq->lock);
1936
1937 /* wait till SQ is empty or link is down */
1938 mtx_lock(&sq->lock);
1939 while (sq->cc != sq->pc &&
1940 (sq->priv->media_status_last & IFM_ACTIVE) != 0 &&
1941 mdev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR &&
1942 pci_channel_offline(mdev->pdev) == 0) {
1943 mtx_unlock(&sq->lock);
1944 msleep(1);
1945 sq->cq.mcq.comp(&sq->cq.mcq, NULL);
1946 mtx_lock(&sq->lock);
1947 }
1948 mtx_unlock(&sq->lock);
1949
1950 /* error out remaining requests */
1951 error = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
1952 if (error != 0) {
1953 mlx5_en_err(sq->ifp,
1954 "mlx5e_modify_sq() from RDY to ERR failed: %d\n", error);
1955 }
1956
1957 /* wait till SQ is empty */
1958 mtx_lock(&sq->lock);
1959 while (sq->cc != sq->pc &&
1960 mdev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR &&
1961 pci_channel_offline(mdev->pdev) == 0) {
1962 mtx_unlock(&sq->lock);
1963 msleep(1);
1964 sq->cq.mcq.comp(&sq->cq.mcq, NULL);
1965 mtx_lock(&sq->lock);
1966 }
1967 mtx_unlock(&sq->lock);
1968 }
1969
1970 static void
mlx5e_close_sq_wait(struct mlx5e_sq * sq)1971 mlx5e_close_sq_wait(struct mlx5e_sq *sq)
1972 {
1973
1974 mlx5e_drain_sq(sq);
1975 mlx5e_disable_sq(sq);
1976 mlx5e_destroy_sq(sq);
1977 }
1978
1979 static int
mlx5e_create_cq(struct mlx5e_priv * priv,struct mlx5e_cq_param * param,struct mlx5e_cq * cq,mlx5e_cq_comp_t * comp,int eq_ix)1980 mlx5e_create_cq(struct mlx5e_priv *priv,
1981 struct mlx5e_cq_param *param,
1982 struct mlx5e_cq *cq,
1983 mlx5e_cq_comp_t *comp,
1984 int eq_ix)
1985 {
1986 struct mlx5_core_dev *mdev = priv->mdev;
1987 struct mlx5_core_cq *mcq = &cq->mcq;
1988 int eqn_not_used;
1989 int irqn;
1990 int err;
1991 u32 i;
1992
1993 err = mlx5_vector2eqn(mdev, eq_ix, &eqn_not_used, &irqn);
1994 if (err)
1995 return (err);
1996
1997 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
1998 &cq->wq_ctrl);
1999 if (err)
2000 return (err);
2001
2002 mcq->cqe_sz = 64;
2003 mcq->set_ci_db = cq->wq_ctrl.db.db;
2004 mcq->arm_db = cq->wq_ctrl.db.db + 1;
2005 *mcq->set_ci_db = 0;
2006 *mcq->arm_db = 0;
2007 mcq->vector = eq_ix;
2008 mcq->comp = comp;
2009 mcq->event = mlx5e_cq_error_event;
2010 mcq->irqn = irqn;
2011
2012 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
2013 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
2014
2015 cqe->op_own = 0xf1;
2016 }
2017
2018 cq->priv = priv;
2019
2020 return (0);
2021 }
2022
2023 static void
mlx5e_destroy_cq(struct mlx5e_cq * cq)2024 mlx5e_destroy_cq(struct mlx5e_cq *cq)
2025 {
2026 mlx5_wq_destroy(&cq->wq_ctrl);
2027 }
2028
2029 static int
mlx5e_enable_cq(struct mlx5e_cq * cq,struct mlx5e_cq_param * param,int eq_ix)2030 mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param, int eq_ix)
2031 {
2032 struct mlx5_core_cq *mcq = &cq->mcq;
2033 u32 out[MLX5_ST_SZ_DW(create_cq_out)];
2034 void *in;
2035 void *cqc;
2036 int inlen;
2037 int irqn_not_used;
2038 int eqn;
2039 int err;
2040
2041 inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
2042 sizeof(u64) * cq->wq_ctrl.buf.npages;
2043 in = mlx5_vzalloc(inlen);
2044 if (in == NULL)
2045 return (-ENOMEM);
2046
2047 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
2048
2049 memcpy(cqc, param->cqc, sizeof(param->cqc));
2050
2051 mlx5_fill_page_array(&cq->wq_ctrl.buf,
2052 (__be64 *) MLX5_ADDR_OF(create_cq_in, in, pas));
2053
2054 mlx5_vector2eqn(cq->priv->mdev, eq_ix, &eqn, &irqn_not_used);
2055
2056 MLX5_SET(cqc, cqc, c_eqn, eqn);
2057 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
2058 MLX5_ADAPTER_PAGE_SHIFT);
2059 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
2060
2061 err = mlx5_core_create_cq(cq->priv->mdev, mcq, in, inlen, out, sizeof(out));
2062
2063 kvfree(in);
2064
2065 if (err)
2066 return (err);
2067
2068 mlx5e_cq_arm(cq, MLX5_GET_DOORBELL_LOCK(&cq->priv->doorbell_lock));
2069
2070 return (0);
2071 }
2072
2073 static void
mlx5e_disable_cq(struct mlx5e_cq * cq)2074 mlx5e_disable_cq(struct mlx5e_cq *cq)
2075 {
2076
2077 mlx5_core_destroy_cq(cq->priv->mdev, &cq->mcq);
2078 }
2079
2080 int
mlx5e_open_cq(struct mlx5e_priv * priv,struct mlx5e_cq_param * param,struct mlx5e_cq * cq,mlx5e_cq_comp_t * comp,int eq_ix)2081 mlx5e_open_cq(struct mlx5e_priv *priv,
2082 struct mlx5e_cq_param *param,
2083 struct mlx5e_cq *cq,
2084 mlx5e_cq_comp_t *comp,
2085 int eq_ix)
2086 {
2087 int err;
2088
2089 err = mlx5e_create_cq(priv, param, cq, comp, eq_ix);
2090 if (err)
2091 return (err);
2092
2093 err = mlx5e_enable_cq(cq, param, eq_ix);
2094 if (err)
2095 goto err_destroy_cq;
2096
2097 return (0);
2098
2099 err_destroy_cq:
2100 mlx5e_destroy_cq(cq);
2101
2102 return (err);
2103 }
2104
2105 void
mlx5e_close_cq(struct mlx5e_cq * cq)2106 mlx5e_close_cq(struct mlx5e_cq *cq)
2107 {
2108 mlx5e_disable_cq(cq);
2109 mlx5e_destroy_cq(cq);
2110 }
2111
2112 static int
mlx5e_open_tx_cqs(struct mlx5e_channel * c,struct mlx5e_channel_param * cparam)2113 mlx5e_open_tx_cqs(struct mlx5e_channel *c,
2114 struct mlx5e_channel_param *cparam)
2115 {
2116 int err;
2117 int tc;
2118
2119 for (tc = 0; tc < c->priv->num_tc; tc++) {
2120 /* open completion queue */
2121 err = mlx5e_open_cq(c->priv, &cparam->tx_cq, &c->sq[tc].cq,
2122 &mlx5e_tx_cq_comp, c->ix);
2123 if (err)
2124 goto err_close_tx_cqs;
2125 }
2126 return (0);
2127
2128 err_close_tx_cqs:
2129 for (tc--; tc >= 0; tc--)
2130 mlx5e_close_cq(&c->sq[tc].cq);
2131
2132 return (err);
2133 }
2134
2135 static void
mlx5e_close_tx_cqs(struct mlx5e_channel * c)2136 mlx5e_close_tx_cqs(struct mlx5e_channel *c)
2137 {
2138 int tc;
2139
2140 for (tc = 0; tc < c->priv->num_tc; tc++)
2141 mlx5e_close_cq(&c->sq[tc].cq);
2142 }
2143
2144 static int
mlx5e_open_sqs(struct mlx5e_channel * c,struct mlx5e_channel_param * cparam)2145 mlx5e_open_sqs(struct mlx5e_channel *c,
2146 struct mlx5e_channel_param *cparam)
2147 {
2148 int err;
2149 int tc;
2150
2151 for (tc = 0; tc < c->priv->num_tc; tc++) {
2152 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
2153 if (err)
2154 goto err_close_sqs;
2155 }
2156
2157 return (0);
2158
2159 err_close_sqs:
2160 for (tc--; tc >= 0; tc--)
2161 mlx5e_close_sq_wait(&c->sq[tc]);
2162
2163 return (err);
2164 }
2165
2166 static void
mlx5e_close_sqs_wait(struct mlx5e_channel * c)2167 mlx5e_close_sqs_wait(struct mlx5e_channel *c)
2168 {
2169 int tc;
2170
2171 for (tc = 0; tc < c->priv->num_tc; tc++)
2172 mlx5e_close_sq_wait(&c->sq[tc]);
2173 }
2174
2175 static void
mlx5e_chan_static_init(struct mlx5e_priv * priv,struct mlx5e_channel * c,int ix)2176 mlx5e_chan_static_init(struct mlx5e_priv *priv, struct mlx5e_channel *c, int ix)
2177 {
2178 int tc;
2179
2180 /* setup priv and channel number */
2181 c->priv = priv;
2182 c->ix = ix;
2183
2184 /* setup send tag */
2185 m_snd_tag_init(&c->tag, c->priv->ifp, &mlx5e_ul_snd_tag_sw);
2186
2187 init_completion(&c->completion);
2188
2189 mtx_init(&c->rq.mtx, "mlx5rx", MTX_NETWORK_LOCK, MTX_DEF);
2190
2191 callout_init_mtx(&c->rq.watchdog, &c->rq.mtx, 0);
2192
2193 for (tc = 0; tc != MLX5E_MAX_TX_NUM_TC; tc++) {
2194 struct mlx5e_sq *sq = c->sq + tc;
2195
2196 mtx_init(&sq->lock, "mlx5tx",
2197 MTX_NETWORK_LOCK " TX", MTX_DEF);
2198 mtx_init(&sq->comp_lock, "mlx5comp",
2199 MTX_NETWORK_LOCK " TX", MTX_DEF);
2200
2201 callout_init_mtx(&sq->cev_callout, &sq->lock, 0);
2202 }
2203
2204 mlx5e_iq_static_init(&c->iq);
2205 }
2206
2207 static void
mlx5e_chan_wait_for_completion(struct mlx5e_channel * c)2208 mlx5e_chan_wait_for_completion(struct mlx5e_channel *c)
2209 {
2210
2211 m_snd_tag_rele(&c->tag);
2212 wait_for_completion(&c->completion);
2213 }
2214
2215 static void
mlx5e_priv_wait_for_completion(struct mlx5e_priv * priv,const uint32_t channels)2216 mlx5e_priv_wait_for_completion(struct mlx5e_priv *priv, const uint32_t channels)
2217 {
2218 uint32_t x;
2219
2220 for (x = 0; x != channels; x++)
2221 mlx5e_chan_wait_for_completion(&priv->channel[x]);
2222 }
2223
2224 static void
mlx5e_chan_static_destroy(struct mlx5e_channel * c)2225 mlx5e_chan_static_destroy(struct mlx5e_channel *c)
2226 {
2227 int tc;
2228
2229 callout_drain(&c->rq.watchdog);
2230
2231 mtx_destroy(&c->rq.mtx);
2232
2233 for (tc = 0; tc != MLX5E_MAX_TX_NUM_TC; tc++) {
2234 callout_drain(&c->sq[tc].cev_callout);
2235 mtx_destroy(&c->sq[tc].lock);
2236 mtx_destroy(&c->sq[tc].comp_lock);
2237 }
2238
2239 mlx5e_iq_static_destroy(&c->iq);
2240 }
2241
2242 static int
mlx5e_open_channel(struct mlx5e_priv * priv,struct mlx5e_channel_param * cparam,struct mlx5e_channel * c)2243 mlx5e_open_channel(struct mlx5e_priv *priv,
2244 struct mlx5e_channel_param *cparam,
2245 struct mlx5e_channel *c)
2246 {
2247 struct epoch_tracker et;
2248 int i, err;
2249
2250 /* zero non-persistent data */
2251 MLX5E_ZERO(&c->rq, mlx5e_rq_zero_start);
2252 for (i = 0; i != priv->num_tc; i++)
2253 MLX5E_ZERO(&c->sq[i], mlx5e_sq_zero_start);
2254 MLX5E_ZERO(&c->iq, mlx5e_iq_zero_start);
2255
2256 /* open transmit completion queue */
2257 err = mlx5e_open_tx_cqs(c, cparam);
2258 if (err)
2259 goto err_free;
2260
2261 /* open receive completion queue */
2262 err = mlx5e_open_cq(c->priv, &cparam->rx_cq, &c->rq.cq,
2263 &mlx5e_rx_cq_comp, c->ix);
2264 if (err)
2265 goto err_close_tx_cqs;
2266
2267 err = mlx5e_open_sqs(c, cparam);
2268 if (err)
2269 goto err_close_rx_cq;
2270
2271 err = mlx5e_iq_open(c, &cparam->sq, &cparam->tx_cq, &c->iq);
2272 if (err)
2273 goto err_close_sqs;
2274
2275 err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
2276 if (err)
2277 goto err_close_iq;
2278
2279 /* poll receive queue initially */
2280 NET_EPOCH_ENTER(et);
2281 c->rq.cq.mcq.comp(&c->rq.cq.mcq, NULL);
2282 NET_EPOCH_EXIT(et);
2283
2284 return (0);
2285
2286 err_close_iq:
2287 mlx5e_iq_close(&c->iq);
2288
2289 err_close_sqs:
2290 mlx5e_close_sqs_wait(c);
2291
2292 err_close_rx_cq:
2293 mlx5e_close_cq(&c->rq.cq);
2294
2295 err_close_tx_cqs:
2296 mlx5e_close_tx_cqs(c);
2297
2298 err_free:
2299 return (err);
2300 }
2301
2302 static void
mlx5e_close_channel(struct mlx5e_channel * c)2303 mlx5e_close_channel(struct mlx5e_channel *c)
2304 {
2305 mlx5e_close_rq(&c->rq);
2306 }
2307
2308 static void
mlx5e_close_channel_wait(struct mlx5e_channel * c)2309 mlx5e_close_channel_wait(struct mlx5e_channel *c)
2310 {
2311 mlx5e_close_rq_wait(&c->rq);
2312 mlx5e_iq_close(&c->iq);
2313 mlx5e_close_sqs_wait(c);
2314 mlx5e_close_tx_cqs(c);
2315 }
2316
2317 static int
mlx5e_get_wqe_sz(struct mlx5e_priv * priv,u32 * wqe_sz,u32 * nsegs)2318 mlx5e_get_wqe_sz(struct mlx5e_priv *priv, u32 *wqe_sz, u32 *nsegs)
2319 {
2320 u32 r, n, maxs;
2321
2322 maxs = priv->params.hw_lro_en ? priv->params.lro_wqe_sz :
2323 MLX5E_SW2MB_MTU(if_getmtu(priv->ifp));
2324 r = maxs > MCLBYTES ? MJUMPAGESIZE : MCLBYTES;
2325
2326 /*
2327 * n + 1 must be a power of two, because stride size must be.
2328 * Stride size is 16 * (n + 1), as the first segment is
2329 * control.
2330 */
2331 n = roundup_pow_of_two(1 + howmany(maxs, r)) - 1;
2332 if (n > MLX5E_MAX_BUSDMA_RX_SEGS)
2333 return (-ENOMEM);
2334
2335 *wqe_sz = r;
2336 *nsegs = n;
2337 return (0);
2338 }
2339
2340 static void
mlx5e_build_rq_param(struct mlx5e_priv * priv,struct mlx5e_rq_param * param)2341 mlx5e_build_rq_param(struct mlx5e_priv *priv,
2342 struct mlx5e_rq_param *param)
2343 {
2344 void *rqc = param->rqc;
2345 void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
2346 u32 wqe_sz, nsegs;
2347
2348 mlx5e_get_wqe_sz(priv, &wqe_sz, &nsegs);
2349 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
2350 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
2351 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe) +
2352 nsegs * sizeof(struct mlx5_wqe_data_seg)));
2353 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
2354 MLX5_SET(wq, wq, pd, priv->pdn);
2355
2356 param->wq.linear = 1;
2357 }
2358
2359 static void
mlx5e_build_sq_param(struct mlx5e_priv * priv,struct mlx5e_sq_param * param)2360 mlx5e_build_sq_param(struct mlx5e_priv *priv,
2361 struct mlx5e_sq_param *param)
2362 {
2363 void *sqc = param->sqc;
2364 void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2365
2366 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
2367 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
2368 MLX5_SET(wq, wq, pd, priv->pdn);
2369
2370 param->wq.linear = 1;
2371 }
2372
2373 static void
mlx5e_build_common_cq_param(struct mlx5e_priv * priv,struct mlx5e_cq_param * param)2374 mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
2375 struct mlx5e_cq_param *param)
2376 {
2377 void *cqc = param->cqc;
2378
2379 MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index);
2380 }
2381
2382 static void
mlx5e_get_default_profile(struct mlx5e_priv * priv,int mode,struct net_dim_cq_moder * ptr)2383 mlx5e_get_default_profile(struct mlx5e_priv *priv, int mode, struct net_dim_cq_moder *ptr)
2384 {
2385
2386 *ptr = net_dim_get_profile(mode, MLX5E_DIM_DEFAULT_PROFILE);
2387
2388 /* apply LRO restrictions */
2389 if (priv->params.hw_lro_en &&
2390 ptr->pkts > MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO) {
2391 ptr->pkts = MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO;
2392 }
2393 }
2394
2395 static void
mlx5e_build_rx_cq_param(struct mlx5e_priv * priv,struct mlx5e_cq_param * param)2396 mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
2397 struct mlx5e_cq_param *param)
2398 {
2399 struct net_dim_cq_moder curr;
2400 void *cqc = param->cqc;
2401
2402 /*
2403 * We use MLX5_CQE_FORMAT_HASH because the RX hash mini CQE
2404 * format is more beneficial for FreeBSD use case.
2405 *
2406 * Adding support for MLX5_CQE_FORMAT_CSUM will require changes
2407 * in mlx5e_decompress_cqe.
2408 */
2409 if (priv->params.cqe_zipping_en) {
2410 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_HASH);
2411 MLX5_SET(cqc, cqc, cqe_compression_en, 1);
2412 }
2413
2414 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size);
2415
2416 switch (priv->params.rx_cq_moderation_mode) {
2417 case 0:
2418 MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec);
2419 MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts);
2420 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
2421 break;
2422 case 1:
2423 MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec);
2424 MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts);
2425 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe))
2426 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
2427 else
2428 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
2429 break;
2430 case 2:
2431 mlx5e_get_default_profile(priv, NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE, &curr);
2432 MLX5_SET(cqc, cqc, cq_period, curr.usec);
2433 MLX5_SET(cqc, cqc, cq_max_count, curr.pkts);
2434 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
2435 break;
2436 case 3:
2437 mlx5e_get_default_profile(priv, NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE, &curr);
2438 MLX5_SET(cqc, cqc, cq_period, curr.usec);
2439 MLX5_SET(cqc, cqc, cq_max_count, curr.pkts);
2440 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe))
2441 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
2442 else
2443 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
2444 break;
2445 default:
2446 break;
2447 }
2448
2449 mlx5e_dim_build_cq_param(priv, param);
2450
2451 mlx5e_build_common_cq_param(priv, param);
2452 }
2453
2454 static void
mlx5e_build_tx_cq_param(struct mlx5e_priv * priv,struct mlx5e_cq_param * param)2455 mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
2456 struct mlx5e_cq_param *param)
2457 {
2458 void *cqc = param->cqc;
2459
2460 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
2461 MLX5_SET(cqc, cqc, cq_period, priv->params.tx_cq_moderation_usec);
2462 MLX5_SET(cqc, cqc, cq_max_count, priv->params.tx_cq_moderation_pkts);
2463
2464 switch (priv->params.tx_cq_moderation_mode) {
2465 case 0:
2466 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
2467 break;
2468 default:
2469 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe))
2470 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
2471 else
2472 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
2473 break;
2474 }
2475
2476 mlx5e_build_common_cq_param(priv, param);
2477 }
2478
2479 static void
mlx5e_build_channel_param(struct mlx5e_priv * priv,struct mlx5e_channel_param * cparam)2480 mlx5e_build_channel_param(struct mlx5e_priv *priv,
2481 struct mlx5e_channel_param *cparam)
2482 {
2483 memset(cparam, 0, sizeof(*cparam));
2484
2485 mlx5e_build_rq_param(priv, &cparam->rq);
2486 mlx5e_build_sq_param(priv, &cparam->sq);
2487 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
2488 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
2489 }
2490
2491 static int
mlx5e_open_channels(struct mlx5e_priv * priv)2492 mlx5e_open_channels(struct mlx5e_priv *priv)
2493 {
2494 struct mlx5e_channel_param *cparam;
2495 int err;
2496 int i;
2497
2498 cparam = malloc(sizeof(*cparam), M_MLX5EN, M_WAITOK);
2499
2500 mlx5e_build_channel_param(priv, cparam);
2501 for (i = 0; i < priv->params.num_channels; i++) {
2502 err = mlx5e_open_channel(priv, cparam, &priv->channel[i]);
2503 if (err)
2504 goto err_close_channels;
2505
2506 /* Bind interrupt vectors, if any. */
2507 if (priv->params_ethtool.irq_cpu_base > -1) {
2508 cpuset_t cpuset;
2509 int cpu;
2510 int irq;
2511 int eqn;
2512 int nirq;
2513
2514 err = mlx5_vector2eqn(priv->mdev, i,
2515 &eqn, &nirq);
2516
2517 /* error here is non-fatal */
2518 if (err != 0)
2519 continue;
2520
2521 irq = priv->mdev->priv.msix_arr[nirq].vector;
2522 cpu = (unsigned)(priv->params_ethtool.irq_cpu_base +
2523 i * priv->params_ethtool.irq_cpu_stride) % (unsigned)mp_ncpus;
2524
2525 CPU_ZERO(&cpuset);
2526 CPU_SET(cpu, &cpuset);
2527 intr_setaffinity(irq, CPU_WHICH_INTRHANDLER, &cpuset);
2528 }
2529 }
2530 free(cparam, M_MLX5EN);
2531 return (0);
2532
2533 err_close_channels:
2534 while (i--) {
2535 mlx5e_close_channel(&priv->channel[i]);
2536 mlx5e_close_channel_wait(&priv->channel[i]);
2537 }
2538 free(cparam, M_MLX5EN);
2539 return (err);
2540 }
2541
2542 static void
mlx5e_close_channels(struct mlx5e_priv * priv)2543 mlx5e_close_channels(struct mlx5e_priv *priv)
2544 {
2545 int i;
2546
2547 for (i = 0; i < priv->params.num_channels; i++)
2548 mlx5e_close_channel(&priv->channel[i]);
2549 for (i = 0; i < priv->params.num_channels; i++)
2550 mlx5e_close_channel_wait(&priv->channel[i]);
2551 }
2552
2553 static int
mlx5e_refresh_sq_params(struct mlx5e_priv * priv,struct mlx5e_sq * sq)2554 mlx5e_refresh_sq_params(struct mlx5e_priv *priv, struct mlx5e_sq *sq)
2555 {
2556
2557 if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) {
2558 uint8_t cq_mode;
2559
2560 switch (priv->params.tx_cq_moderation_mode) {
2561 case 0:
2562 case 2:
2563 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
2564 break;
2565 default:
2566 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE;
2567 break;
2568 }
2569
2570 return (mlx5_core_modify_cq_moderation_mode(priv->mdev, &sq->cq.mcq,
2571 priv->params.tx_cq_moderation_usec,
2572 priv->params.tx_cq_moderation_pkts,
2573 cq_mode));
2574 }
2575
2576 return (mlx5_core_modify_cq_moderation(priv->mdev, &sq->cq.mcq,
2577 priv->params.tx_cq_moderation_usec,
2578 priv->params.tx_cq_moderation_pkts));
2579 }
2580
2581 static int
mlx5e_refresh_rq_params(struct mlx5e_priv * priv,struct mlx5e_rq * rq)2582 mlx5e_refresh_rq_params(struct mlx5e_priv *priv, struct mlx5e_rq *rq)
2583 {
2584
2585 if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) {
2586 uint8_t cq_mode;
2587 uint8_t dim_mode;
2588 int retval;
2589
2590 switch (priv->params.rx_cq_moderation_mode) {
2591 case 0:
2592 case 2:
2593 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
2594 dim_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
2595 break;
2596 default:
2597 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE;
2598 dim_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE;
2599 break;
2600 }
2601
2602 /* tear down dynamic interrupt moderation */
2603 mtx_lock(&rq->mtx);
2604 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED;
2605 mtx_unlock(&rq->mtx);
2606
2607 /* wait for dynamic interrupt moderation work task, if any */
2608 cancel_work_sync(&rq->dim.work);
2609
2610 if (priv->params.rx_cq_moderation_mode >= 2) {
2611 struct net_dim_cq_moder curr;
2612
2613 mlx5e_get_default_profile(priv, dim_mode, &curr);
2614
2615 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq,
2616 curr.usec, curr.pkts, cq_mode);
2617
2618 /* set dynamic interrupt moderation mode and zero defaults */
2619 mtx_lock(&rq->mtx);
2620 rq->dim.mode = dim_mode;
2621 rq->dim.state = 0;
2622 rq->dim.profile_ix = MLX5E_DIM_DEFAULT_PROFILE;
2623 mtx_unlock(&rq->mtx);
2624 } else {
2625 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq,
2626 priv->params.rx_cq_moderation_usec,
2627 priv->params.rx_cq_moderation_pkts,
2628 cq_mode);
2629 }
2630 return (retval);
2631 }
2632
2633 return (mlx5_core_modify_cq_moderation(priv->mdev, &rq->cq.mcq,
2634 priv->params.rx_cq_moderation_usec,
2635 priv->params.rx_cq_moderation_pkts));
2636 }
2637
2638 static int
mlx5e_refresh_channel_params_sub(struct mlx5e_priv * priv,struct mlx5e_channel * c)2639 mlx5e_refresh_channel_params_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c)
2640 {
2641 int err;
2642 int i;
2643
2644 err = mlx5e_refresh_rq_params(priv, &c->rq);
2645 if (err)
2646 goto done;
2647
2648 for (i = 0; i != priv->num_tc; i++) {
2649 err = mlx5e_refresh_sq_params(priv, &c->sq[i]);
2650 if (err)
2651 goto done;
2652 }
2653 done:
2654 return (err);
2655 }
2656
2657 int
mlx5e_refresh_channel_params(struct mlx5e_priv * priv)2658 mlx5e_refresh_channel_params(struct mlx5e_priv *priv)
2659 {
2660 int i;
2661
2662 /* check if channels are closed */
2663 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
2664 return (EINVAL);
2665
2666 for (i = 0; i < priv->params.num_channels; i++) {
2667 int err;
2668
2669 err = mlx5e_refresh_channel_params_sub(priv, &priv->channel[i]);
2670 if (err)
2671 return (err);
2672 }
2673 return (0);
2674 }
2675
2676 static int
mlx5e_open_tis(struct mlx5e_priv * priv,int tc)2677 mlx5e_open_tis(struct mlx5e_priv *priv, int tc)
2678 {
2679 struct mlx5_core_dev *mdev = priv->mdev;
2680 u32 in[MLX5_ST_SZ_DW(create_tis_in)];
2681 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
2682
2683 memset(in, 0, sizeof(in));
2684
2685 MLX5_SET(tisc, tisc, prio, tc);
2686 MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
2687
2688 return (mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]));
2689 }
2690
2691 static void
mlx5e_close_tis(struct mlx5e_priv * priv,int tc)2692 mlx5e_close_tis(struct mlx5e_priv *priv, int tc)
2693 {
2694 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc], 0);
2695 }
2696
2697 static int
mlx5e_open_tises(struct mlx5e_priv * priv)2698 mlx5e_open_tises(struct mlx5e_priv *priv)
2699 {
2700 int num_tc = priv->num_tc;
2701 int err;
2702 int tc;
2703
2704 for (tc = 0; tc < num_tc; tc++) {
2705 err = mlx5e_open_tis(priv, tc);
2706 if (err)
2707 goto err_close_tises;
2708 }
2709
2710 return (0);
2711
2712 err_close_tises:
2713 for (tc--; tc >= 0; tc--)
2714 mlx5e_close_tis(priv, tc);
2715
2716 return (err);
2717 }
2718
2719 static void
mlx5e_close_tises(struct mlx5e_priv * priv)2720 mlx5e_close_tises(struct mlx5e_priv *priv)
2721 {
2722 int num_tc = priv->num_tc;
2723 int tc;
2724
2725 for (tc = 0; tc < num_tc; tc++)
2726 mlx5e_close_tis(priv, tc);
2727 }
2728
2729 static int
mlx5e_open_default_rqt(struct mlx5e_priv * priv,u32 * prqtn,int sz)2730 mlx5e_open_default_rqt(struct mlx5e_priv *priv, u32 *prqtn, int sz)
2731 {
2732 u32 *in;
2733 void *rqtc;
2734 int inlen;
2735 int err;
2736 int i;
2737
2738 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
2739 in = mlx5_vzalloc(inlen);
2740 if (in == NULL)
2741 return (-ENOMEM);
2742 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
2743
2744 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2745 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
2746
2747 for (i = 0; i != sz; i++)
2748 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn);
2749
2750 err = mlx5_core_create_rqt(priv->mdev, in, inlen, prqtn);
2751 kvfree(in);
2752
2753 return (err);
2754 }
2755
2756 static int
mlx5e_open_rqts(struct mlx5e_priv * priv)2757 mlx5e_open_rqts(struct mlx5e_priv *priv)
2758 {
2759 int err;
2760 int i;
2761
2762 err = mlx5e_open_default_rqt(priv, &priv->rqtn,
2763 1 << priv->params.rx_hash_log_tbl_sz);
2764 if (err)
2765 goto err_default;
2766
2767 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) {
2768 err = mlx5e_open_default_rqt(priv, &priv->channel[i].rqtn, 1);
2769 if (err)
2770 goto err_channel;
2771 }
2772 return (0);
2773
2774 err_channel:
2775 while (i--)
2776 mlx5_core_destroy_rqt(priv->mdev, priv->channel[i].rqtn, 0);
2777
2778 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn, 0);
2779
2780 err_default:
2781 return (err);
2782 }
2783
2784 static void
mlx5e_close_rqts(struct mlx5e_priv * priv)2785 mlx5e_close_rqts(struct mlx5e_priv *priv)
2786 {
2787 int i;
2788
2789 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++)
2790 mlx5_core_destroy_rqt(priv->mdev, priv->channel[i].rqtn, 0);
2791
2792 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn, 0);
2793 }
2794
2795 static int
mlx5e_activate_rqt(struct mlx5e_priv * priv)2796 mlx5e_activate_rqt(struct mlx5e_priv *priv)
2797 {
2798 u32 *in;
2799 void *rqtc;
2800 int inlen;
2801 int err;
2802 int sz;
2803 int i;
2804
2805 sz = 1 << priv->params.rx_hash_log_tbl_sz;
2806
2807 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
2808 in = mlx5_vzalloc(inlen);
2809 if (in == NULL)
2810 return (-ENOMEM);
2811
2812 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
2813
2814 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2815 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
2816
2817 for (i = 0; i != sz; i++) {
2818 int ix;
2819 #ifdef RSS
2820 ix = rss_get_indirection_to_bucket(i);
2821 #else
2822 ix = i;
2823 #endif
2824 /* ensure we don't overflow */
2825 ix %= priv->params.num_channels;
2826
2827 /* apply receive side scaling stride, if any */
2828 ix -= ix % (int)priv->params.channels_rsss;
2829
2830 MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix].rq.rqn);
2831 }
2832
2833 err = mlx5_core_modify_rqt(priv->mdev, priv->rqtn, in, inlen);
2834 if (err)
2835 goto err_modify;
2836
2837 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32);
2838
2839 MLX5_SET(rqtc, rqtc, rqt_actual_size, 1);
2840
2841 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) {
2842 int ix;
2843 #ifdef RSS
2844 ix = rss_get_indirection_to_bucket(i);
2845 #else
2846 ix = i;
2847 #endif
2848 /* ensure we don't overflow */
2849 ix %= priv->params.num_channels;
2850
2851 /* apply receive side scaling stride, if any */
2852 ix -= ix % (int)priv->params.channels_rsss;
2853
2854 MLX5_SET(rqtc, rqtc, rq_num[0], priv->channel[ix].rq.rqn);
2855
2856 err = mlx5_core_modify_rqt(priv->mdev, priv->channel[i].rqtn, in, inlen);
2857 if (err)
2858 goto err_modify;
2859 }
2860
2861 err_modify:
2862 kvfree(in);
2863 return (err);
2864 }
2865
2866 static int
mlx5e_deactivate_rqt(struct mlx5e_priv * priv)2867 mlx5e_deactivate_rqt(struct mlx5e_priv *priv)
2868 {
2869 u32 *in;
2870 void *rqtc;
2871 int inlen;
2872 int err;
2873 int sz;
2874 int i;
2875
2876 sz = 1 << priv->params.rx_hash_log_tbl_sz;
2877
2878 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
2879 in = mlx5_vzalloc(inlen);
2880 if (in == NULL)
2881 return (-ENOMEM);
2882
2883 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
2884
2885 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2886 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
2887
2888 for (i = 0; i != sz; i++)
2889 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn);
2890
2891 err = mlx5_core_modify_rqt(priv->mdev, priv->rqtn, in, inlen);
2892 if (err)
2893 goto err_modify;
2894
2895 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32);
2896
2897 MLX5_SET(rqtc, rqtc, rqt_actual_size, 1);
2898
2899 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) {
2900 MLX5_SET(rqtc, rqtc, rq_num[0], priv->drop_rq.rqn);
2901
2902 err = mlx5_core_modify_rqt(priv->mdev, priv->channel[i].rqtn, in, inlen);
2903 if (err)
2904 goto err_modify;
2905 }
2906
2907 err_modify:
2908 kvfree(in);
2909 return (err);
2910 }
2911
2912 #define MLX5E_RSS_KEY_SIZE (10 * 4) /* bytes */
2913
2914 static void
mlx5e_get_rss_key(void * key_ptr)2915 mlx5e_get_rss_key(void *key_ptr)
2916 {
2917 #ifdef RSS
2918 rss_getkey(key_ptr);
2919 #else
2920 static const u32 rsskey[] = {
2921 cpu_to_be32(0xD181C62C),
2922 cpu_to_be32(0xF7F4DB5B),
2923 cpu_to_be32(0x1983A2FC),
2924 cpu_to_be32(0x943E1ADB),
2925 cpu_to_be32(0xD9389E6B),
2926 cpu_to_be32(0xD1039C2C),
2927 cpu_to_be32(0xA74499AD),
2928 cpu_to_be32(0x593D56D9),
2929 cpu_to_be32(0xF3253C06),
2930 cpu_to_be32(0x2ADC1FFC),
2931 };
2932 CTASSERT(sizeof(rsskey) == MLX5E_RSS_KEY_SIZE);
2933 memcpy(key_ptr, rsskey, MLX5E_RSS_KEY_SIZE);
2934 #endif
2935 }
2936
2937 static void
mlx5e_hw_lro_set_tir_ctx_lro_max_msg_sz(struct mlx5e_priv * priv,u32 * tirc)2938 mlx5e_hw_lro_set_tir_ctx_lro_max_msg_sz(struct mlx5e_priv *priv, u32 *tirc)
2939 {
2940 MLX5_SET(tirc, tirc, lro_max_msg_sz, (priv->params.lro_wqe_sz >> 8) -
2941 (MLX5_CAP_ETH(priv->mdev, lro_max_msg_sz_mode) == 0 ? 1 : 0));
2942 }
2943
2944 static void
mlx5e_hw_lro_set_tir_ctx(struct mlx5e_priv * priv,u32 * tirc)2945 mlx5e_hw_lro_set_tir_ctx(struct mlx5e_priv *priv, u32 *tirc)
2946 {
2947 MLX5_SET(tirc, tirc, lro_enable_mask,
2948 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
2949 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
2950 /* TODO: add the option to choose timer value dynamically */
2951 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
2952 MLX5_CAP_ETH(priv->mdev, lro_timer_supported_periods[2]));
2953 mlx5e_hw_lro_set_tir_ctx_lro_max_msg_sz(priv, tirc);
2954 }
2955
2956 static int
mlx5e_hw_lro_update_tir(struct mlx5e_priv * priv,int tt,bool inner_vxlan)2957 mlx5e_hw_lro_update_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan)
2958 {
2959 struct mlx5_core_dev *mdev = priv->mdev;
2960 u32 *in;
2961 void *tirc;
2962 int inlen;
2963 int err;
2964
2965 inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
2966 in = mlx5_vzalloc(inlen);
2967 if (in == NULL)
2968 return (-ENOMEM);
2969 tirc = MLX5_ADDR_OF(modify_tir_in, in, tir_context);
2970
2971 /* fill the command part */
2972 MLX5_SET(modify_tir_in, in, tirn, inner_vxlan ?
2973 priv->tirn_inner_vxlan[tt] : priv->tirn[tt]);
2974 MLX5_SET64(modify_tir_in, in, modify_bitmask,
2975 (1 << MLX5_MODIFY_TIR_BITMASK_LRO));
2976
2977 /* fill the context */
2978 if (priv->params.hw_lro_en)
2979 mlx5e_hw_lro_set_tir_ctx(priv, tirc);
2980
2981 err = mlx5_core_modify_tir(mdev, in, inlen);
2982
2983 kvfree(in);
2984 return (err);
2985 }
2986
2987 int
mlx5e_hw_lro_update_tirs(struct mlx5e_priv * priv)2988 mlx5e_hw_lro_update_tirs(struct mlx5e_priv *priv)
2989 {
2990 int err, err1, i;
2991
2992 err = 0;
2993 for (i = 0; i != 2 * MLX5E_NUM_TT; i++) {
2994 err1 = mlx5e_hw_lro_update_tir(priv, i / 2, (i % 2) ? true :
2995 false);
2996 if (err1 != 0 && err == 0)
2997 err = err1;
2998 }
2999 return (-err);
3000 }
3001
3002 static void
mlx5e_build_tir_ctx(struct mlx5e_priv * priv,u32 * tirc,int tt,bool inner_vxlan)3003 mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 * tirc, int tt, bool inner_vxlan)
3004 {
3005 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
3006 void *hfsi = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner);
3007 void *hfs = inner_vxlan ? hfsi : hfso;
3008 __be32 *hkey;
3009
3010 MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
3011
3012 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
3013 MLX5_HASH_FIELD_SEL_DST_IP)
3014
3015 #define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\
3016 MLX5_HASH_FIELD_SEL_DST_IP |\
3017 MLX5_HASH_FIELD_SEL_L4_SPORT |\
3018 MLX5_HASH_FIELD_SEL_L4_DPORT)
3019
3020 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
3021 MLX5_HASH_FIELD_SEL_DST_IP |\
3022 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
3023
3024 if (priv->params.hw_lro_en)
3025 mlx5e_hw_lro_set_tir_ctx(priv, tirc);
3026
3027 if (inner_vxlan)
3028 MLX5_SET(tirc, tirc, tunneled_offload_en, 1);
3029
3030 /*
3031 * All packets must go through the indirection table, RQT,
3032 * because it is not possible to modify the RQN of the TIR
3033 * for direct dispatchment after it is created, typically
3034 * when the link goes up and down.
3035 */
3036 MLX5_SET(tirc, tirc, disp_type,
3037 MLX5_TIRC_DISP_TYPE_INDIRECT);
3038 MLX5_SET(tirc, tirc, indirect_table,
3039 priv->rqtn);
3040 MLX5_SET(tirc, tirc, rx_hash_fn,
3041 MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ);
3042 hkey = (__be32 *) MLX5_ADDR_OF(tirc, tirc, rx_hash_toeplitz_key);
3043
3044 CTASSERT(MLX5_FLD_SZ_BYTES(tirc, rx_hash_toeplitz_key) >=
3045 MLX5E_RSS_KEY_SIZE);
3046 #ifdef RSS
3047 /*
3048 * The FreeBSD RSS implementation does currently not
3049 * support symmetric Toeplitz hashes:
3050 */
3051 MLX5_SET(tirc, tirc, rx_hash_symmetric, 0);
3052 #else
3053 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
3054 #endif
3055 mlx5e_get_rss_key(hkey);
3056
3057 switch (tt) {
3058 case MLX5E_TT_IPV4_TCP:
3059 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3060 MLX5_L3_PROT_TYPE_IPV4);
3061 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type,
3062 MLX5_L4_PROT_TYPE_TCP);
3063 #ifdef RSS
3064 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV4)) {
3065 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3066 MLX5_HASH_IP);
3067 } else
3068 #endif
3069 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3070 MLX5_HASH_ALL);
3071 break;
3072
3073 case MLX5E_TT_IPV6_TCP:
3074 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3075 MLX5_L3_PROT_TYPE_IPV6);
3076 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type,
3077 MLX5_L4_PROT_TYPE_TCP);
3078 #ifdef RSS
3079 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV6)) {
3080 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3081 MLX5_HASH_IP);
3082 } else
3083 #endif
3084 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3085 MLX5_HASH_ALL);
3086 break;
3087
3088 case MLX5E_TT_IPV4_UDP:
3089 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3090 MLX5_L3_PROT_TYPE_IPV4);
3091 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type,
3092 MLX5_L4_PROT_TYPE_UDP);
3093 #ifdef RSS
3094 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV4)) {
3095 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3096 MLX5_HASH_IP);
3097 } else
3098 #endif
3099 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3100 MLX5_HASH_ALL);
3101 break;
3102
3103 case MLX5E_TT_IPV6_UDP:
3104 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3105 MLX5_L3_PROT_TYPE_IPV6);
3106 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type,
3107 MLX5_L4_PROT_TYPE_UDP);
3108 #ifdef RSS
3109 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV6)) {
3110 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3111 MLX5_HASH_IP);
3112 } else
3113 #endif
3114 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3115 MLX5_HASH_ALL);
3116 break;
3117
3118 case MLX5E_TT_IPV4_IPSEC_AH:
3119 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3120 MLX5_L3_PROT_TYPE_IPV4);
3121 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3122 MLX5_HASH_IP_IPSEC_SPI);
3123 break;
3124
3125 case MLX5E_TT_IPV6_IPSEC_AH:
3126 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3127 MLX5_L3_PROT_TYPE_IPV6);
3128 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3129 MLX5_HASH_IP_IPSEC_SPI);
3130 break;
3131
3132 case MLX5E_TT_IPV4_IPSEC_ESP:
3133 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3134 MLX5_L3_PROT_TYPE_IPV4);
3135 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3136 MLX5_HASH_IP_IPSEC_SPI);
3137 break;
3138
3139 case MLX5E_TT_IPV6_IPSEC_ESP:
3140 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3141 MLX5_L3_PROT_TYPE_IPV6);
3142 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3143 MLX5_HASH_IP_IPSEC_SPI);
3144 break;
3145
3146 case MLX5E_TT_IPV4:
3147 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3148 MLX5_L3_PROT_TYPE_IPV4);
3149 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3150 MLX5_HASH_IP);
3151 break;
3152
3153 case MLX5E_TT_IPV6:
3154 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type,
3155 MLX5_L3_PROT_TYPE_IPV6);
3156 MLX5_SET(rx_hash_field_select, hfs, selected_fields,
3157 MLX5_HASH_IP);
3158 break;
3159
3160 default:
3161 break;
3162 }
3163 }
3164
3165 static int
mlx5e_open_tir(struct mlx5e_priv * priv,int tt,bool inner_vxlan)3166 mlx5e_open_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan)
3167 {
3168 struct mlx5_core_dev *mdev = priv->mdev;
3169 u32 *in;
3170 void *tirc;
3171 int inlen;
3172 int err;
3173
3174 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
3175 in = mlx5_vzalloc(inlen);
3176 if (in == NULL)
3177 return (-ENOMEM);
3178 tirc = MLX5_ADDR_OF(create_tir_in, in, tir_context);
3179
3180 mlx5e_build_tir_ctx(priv, tirc, tt, inner_vxlan);
3181
3182 err = mlx5_core_create_tir(mdev, in, inlen, inner_vxlan ?
3183 &priv->tirn_inner_vxlan[tt] : &priv->tirn[tt]);
3184
3185 kvfree(in);
3186
3187 return (err);
3188 }
3189
3190 static void
mlx5e_close_tir(struct mlx5e_priv * priv,int tt,bool inner_vxlan)3191 mlx5e_close_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan)
3192 {
3193 mlx5_core_destroy_tir(priv->mdev, inner_vxlan ?
3194 priv->tirn_inner_vxlan[tt] : priv->tirn[tt], 0);
3195 }
3196
3197 static int
mlx5e_open_tirs(struct mlx5e_priv * priv)3198 mlx5e_open_tirs(struct mlx5e_priv *priv)
3199 {
3200 int err;
3201 int i;
3202
3203 for (i = 0; i != 2 * MLX5E_NUM_TT; i++) {
3204 err = mlx5e_open_tir(priv, i / 2, (i % 2) ? true : false);
3205 if (err)
3206 goto err_close_tirs;
3207 }
3208
3209 return (0);
3210
3211 err_close_tirs:
3212 for (i--; i >= 0; i--)
3213 mlx5e_close_tir(priv, i / 2, (i % 2) ? true : false);
3214
3215 return (err);
3216 }
3217
3218 static void
mlx5e_close_tirs(struct mlx5e_priv * priv)3219 mlx5e_close_tirs(struct mlx5e_priv *priv)
3220 {
3221 int i;
3222
3223 for (i = 0; i != 2 * MLX5E_NUM_TT; i++)
3224 mlx5e_close_tir(priv, i / 2, (i % 2) ? true : false);
3225 }
3226
3227 /*
3228 * SW MTU does not include headers,
3229 * HW MTU includes all headers and checksums.
3230 */
3231 static int
mlx5e_set_dev_port_mtu(if_t ifp,int sw_mtu)3232 mlx5e_set_dev_port_mtu(if_t ifp, int sw_mtu)
3233 {
3234 struct mlx5e_priv *priv = if_getsoftc(ifp);
3235 struct mlx5_core_dev *mdev = priv->mdev;
3236 int hw_mtu;
3237 int err;
3238
3239 hw_mtu = MLX5E_SW2HW_MTU(sw_mtu);
3240
3241 err = mlx5_set_port_mtu(mdev, hw_mtu);
3242 if (err) {
3243 mlx5_en_err(ifp, "mlx5_set_port_mtu failed setting %d, err=%d\n",
3244 sw_mtu, err);
3245 return (err);
3246 }
3247
3248 /* Update vport context MTU */
3249 err = mlx5_set_vport_mtu(mdev, hw_mtu);
3250 if (err) {
3251 mlx5_en_err(ifp,
3252 "Failed updating vport context with MTU size, err=%d\n",
3253 err);
3254 }
3255
3256 if_setmtu(ifp, sw_mtu);
3257
3258 err = mlx5_query_vport_mtu(mdev, &hw_mtu);
3259 if (err || !hw_mtu) {
3260 /* fallback to port oper mtu */
3261 err = mlx5_query_port_oper_mtu(mdev, &hw_mtu);
3262 }
3263 if (err) {
3264 mlx5_en_err(ifp,
3265 "Query port MTU, after setting new MTU value, failed\n");
3266 return (err);
3267 } else if (MLX5E_HW2SW_MTU(hw_mtu) < sw_mtu) {
3268 err = -E2BIG,
3269 mlx5_en_err(ifp,
3270 "Port MTU %d is smaller than ifp mtu %d\n",
3271 hw_mtu, sw_mtu);
3272 } else if (MLX5E_HW2SW_MTU(hw_mtu) > sw_mtu) {
3273 err = -EINVAL;
3274 mlx5_en_err(ifp,
3275 "Port MTU %d is bigger than ifp mtu %d\n",
3276 hw_mtu, sw_mtu);
3277 }
3278 priv->params_ethtool.hw_mtu = hw_mtu;
3279
3280 /* compute MSB */
3281 while (hw_mtu & (hw_mtu - 1))
3282 hw_mtu &= (hw_mtu - 1);
3283 priv->params_ethtool.hw_mtu_msb = hw_mtu;
3284
3285 return (err);
3286 }
3287
3288 int
mlx5e_open_locked(if_t ifp)3289 mlx5e_open_locked(if_t ifp)
3290 {
3291 struct mlx5e_priv *priv = if_getsoftc(ifp);
3292 int err;
3293 u16 set_id;
3294
3295 /* check if already opened */
3296 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0)
3297 return (0);
3298
3299 #ifdef RSS
3300 if (rss_getnumbuckets() > priv->params.num_channels) {
3301 mlx5_en_info(ifp,
3302 "NOTE: There are more RSS buckets(%u) than channels(%u) available\n",
3303 rss_getnumbuckets(), priv->params.num_channels);
3304 }
3305 #endif
3306 err = mlx5e_open_tises(priv);
3307 if (err) {
3308 mlx5_en_err(ifp, "mlx5e_open_tises failed, %d\n", err);
3309 return (err);
3310 }
3311 err = mlx5_vport_alloc_q_counter(priv->mdev,
3312 MLX5_INTERFACE_PROTOCOL_ETH, &set_id);
3313 if (err) {
3314 mlx5_en_err(priv->ifp,
3315 "mlx5_vport_alloc_q_counter failed: %d\n", err);
3316 goto err_close_tises;
3317 }
3318 /* store counter set ID */
3319 priv->counter_set_id = set_id;
3320
3321 err = mlx5e_open_channels(priv);
3322 if (err) {
3323 mlx5_en_err(ifp,
3324 "mlx5e_open_channels failed, %d\n", err);
3325 goto err_dalloc_q_counter;
3326 }
3327 err = mlx5e_activate_rqt(priv);
3328 if (err) {
3329 mlx5_en_err(ifp, "mlx5e_activate_rqt failed, %d\n", err);
3330 goto err_close_channels;
3331 }
3332
3333 set_bit(MLX5E_STATE_OPENED, &priv->state);
3334
3335 mlx5e_update_carrier(priv);
3336
3337 return (0);
3338
3339 err_close_channels:
3340 mlx5e_close_channels(priv);
3341
3342 err_dalloc_q_counter:
3343 mlx5_vport_dealloc_q_counter(priv->mdev,
3344 MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id);
3345
3346 err_close_tises:
3347 mlx5e_close_tises(priv);
3348
3349 return (err);
3350 }
3351
3352 static void
mlx5e_open(void * arg)3353 mlx5e_open(void *arg)
3354 {
3355 struct mlx5e_priv *priv = arg;
3356
3357 PRIV_LOCK(priv);
3358 if (mlx5_set_port_status(priv->mdev, MLX5_PORT_UP))
3359 mlx5_en_err(priv->ifp,
3360 "Setting port status to up failed\n");
3361
3362 mlx5e_open_locked(priv->ifp);
3363 if_setdrvflagbits(priv->ifp, IFF_DRV_RUNNING, 0);
3364 PRIV_UNLOCK(priv);
3365 }
3366
3367 int
mlx5e_close_locked(if_t ifp)3368 mlx5e_close_locked(if_t ifp)
3369 {
3370 struct mlx5e_priv *priv = if_getsoftc(ifp);
3371
3372 /* check if already closed */
3373 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
3374 return (0);
3375
3376 clear_bit(MLX5E_STATE_OPENED, &priv->state);
3377
3378 if_link_state_change(priv->ifp, LINK_STATE_DOWN);
3379
3380 mlx5e_deactivate_rqt(priv);
3381 mlx5e_close_channels(priv);
3382 mlx5_vport_dealloc_q_counter(priv->mdev,
3383 MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id);
3384 mlx5e_close_tises(priv);
3385
3386 return (0);
3387 }
3388
3389 static uint64_t
mlx5e_get_counter(if_t ifp,ift_counter cnt)3390 mlx5e_get_counter(if_t ifp, ift_counter cnt)
3391 {
3392 struct mlx5e_priv *priv = if_getsoftc(ifp);
3393 u64 retval;
3394
3395 /* PRIV_LOCK(priv); XXX not allowed */
3396 switch (cnt) {
3397 case IFCOUNTER_IPACKETS:
3398 retval = priv->stats.vport.rx_packets;
3399 break;
3400 case IFCOUNTER_IERRORS:
3401 retval = priv->stats.pport.in_range_len_errors +
3402 priv->stats.pport.out_of_range_len +
3403 priv->stats.pport.too_long_errors +
3404 priv->stats.pport.check_seq_err +
3405 priv->stats.pport.alignment_err;
3406 break;
3407 case IFCOUNTER_IQDROPS:
3408 retval = priv->stats.vport.rx_out_of_buffer;
3409 break;
3410 case IFCOUNTER_OPACKETS:
3411 retval = priv->stats.vport.tx_packets;
3412 break;
3413 case IFCOUNTER_OERRORS:
3414 retval = priv->stats.port_stats_debug.out_discards;
3415 break;
3416 case IFCOUNTER_IBYTES:
3417 retval = priv->stats.vport.rx_bytes;
3418 break;
3419 case IFCOUNTER_OBYTES:
3420 retval = priv->stats.vport.tx_bytes;
3421 break;
3422 case IFCOUNTER_IMCASTS:
3423 retval = priv->stats.vport.rx_multicast_packets;
3424 break;
3425 case IFCOUNTER_OMCASTS:
3426 retval = priv->stats.vport.tx_multicast_packets;
3427 break;
3428 case IFCOUNTER_OQDROPS:
3429 retval = priv->stats.vport.tx_queue_dropped;
3430 break;
3431 case IFCOUNTER_COLLISIONS:
3432 retval = priv->stats.pport.collisions;
3433 break;
3434 default:
3435 retval = if_get_counter_default(ifp, cnt);
3436 break;
3437 }
3438 /* PRIV_UNLOCK(priv); XXX not allowed */
3439 return (retval);
3440 }
3441
3442 static void
mlx5e_set_rx_mode(if_t ifp)3443 mlx5e_set_rx_mode(if_t ifp)
3444 {
3445 struct mlx5e_priv *priv = if_getsoftc(ifp);
3446
3447 queue_work(priv->wq, &priv->set_rx_mode_work);
3448 }
3449
3450 static bool
mlx5e_is_ipsec_capable(struct mlx5_core_dev * mdev)3451 mlx5e_is_ipsec_capable(struct mlx5_core_dev *mdev)
3452 {
3453 #ifdef IPSEC_OFFLOAD
3454 if ((mlx5_ipsec_device_caps(mdev) & MLX5_IPSEC_CAP_PACKET_OFFLOAD) != 0)
3455 return (true);
3456 #endif
3457 return (false);
3458 }
3459
3460 static bool
mlx5e_is_ratelimit_capable(struct mlx5_core_dev * mdev)3461 mlx5e_is_ratelimit_capable(struct mlx5_core_dev *mdev)
3462 {
3463 #ifdef RATELIMIT
3464 if (MLX5_CAP_GEN(mdev, qos) &&
3465 MLX5_CAP_QOS(mdev, packet_pacing))
3466 return (true);
3467 #endif
3468 return (false);
3469 }
3470
3471 static bool
mlx5e_is_tlstx_capable(struct mlx5_core_dev * mdev)3472 mlx5e_is_tlstx_capable(struct mlx5_core_dev *mdev)
3473 {
3474 #ifdef KERN_TLS
3475 if (MLX5_CAP_GEN(mdev, tls_tx) != 0 &&
3476 MLX5_CAP_GEN(mdev, log_max_dek) != 0)
3477 return (true);
3478 #endif
3479 return (false);
3480 }
3481
3482 static bool
mlx5e_is_tlsrx_capable(struct mlx5_core_dev * mdev)3483 mlx5e_is_tlsrx_capable(struct mlx5_core_dev *mdev)
3484 {
3485 #ifdef KERN_TLS
3486 if (MLX5_CAP_GEN(mdev, tls_rx) != 0 &&
3487 MLX5_CAP_GEN(mdev, log_max_dek) != 0 &&
3488 MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
3489 ft_field_support.outer_ip_version) != 0)
3490 return (true);
3491 #endif
3492 return (false);
3493 }
3494
3495 static int
mlx5e_ioctl(if_t ifp,u_long command,caddr_t data)3496 mlx5e_ioctl(if_t ifp, u_long command, caddr_t data)
3497 {
3498 struct mlx5e_priv *priv;
3499 struct ifreq *ifr;
3500 struct ifdownreason *ifdr;
3501 struct ifi2creq i2c;
3502 struct ifrsskey *ifrk;
3503 struct ifrsshash *ifrh;
3504 struct siocsifcapnv_driver_data *drv_ioctl_data, drv_ioctl_data_d;
3505 int error = 0;
3506 int mask;
3507 int size_read = 0;
3508 int module_status;
3509 int module_num;
3510 int max_mtu;
3511 uint8_t read_addr;
3512
3513 priv = if_getsoftc(ifp);
3514
3515 /* check if detaching */
3516 if (priv == NULL || priv->gone != 0)
3517 return (ENXIO);
3518
3519 switch (command) {
3520 case SIOCSIFMTU:
3521 ifr = (struct ifreq *)data;
3522
3523 PRIV_LOCK(priv);
3524 mlx5_query_port_max_mtu(priv->mdev, &max_mtu);
3525
3526 if (ifr->ifr_mtu >= MLX5E_MTU_MIN &&
3527 ifr->ifr_mtu <= MIN(MLX5E_MTU_MAX, max_mtu)) {
3528 int was_opened;
3529
3530 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
3531 if (was_opened)
3532 mlx5e_close_locked(ifp);
3533
3534 /* set new MTU */
3535 mlx5e_set_dev_port_mtu(ifp, ifr->ifr_mtu);
3536
3537 if (was_opened)
3538 mlx5e_open_locked(ifp);
3539 } else {
3540 error = EINVAL;
3541 mlx5_en_err(ifp,
3542 "Invalid MTU value. Min val: %d, Max val: %d\n",
3543 MLX5E_MTU_MIN, MIN(MLX5E_MTU_MAX, max_mtu));
3544 }
3545 PRIV_UNLOCK(priv);
3546 break;
3547 case SIOCSIFFLAGS:
3548 if ((if_getflags(ifp) & IFF_UP) &&
3549 (if_getdrvflags(ifp) & IFF_DRV_RUNNING)) {
3550 mlx5e_set_rx_mode(ifp);
3551 break;
3552 }
3553 PRIV_LOCK(priv);
3554 if (if_getflags(ifp) & IFF_UP) {
3555 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0) {
3556 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
3557 mlx5e_open_locked(ifp);
3558 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0);
3559 mlx5_set_port_status(priv->mdev, MLX5_PORT_UP);
3560 }
3561 } else {
3562 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) {
3563 mlx5_set_port_status(priv->mdev,
3564 MLX5_PORT_DOWN);
3565 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0)
3566 mlx5e_close_locked(ifp);
3567 mlx5e_update_carrier(priv);
3568 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
3569 }
3570 }
3571 PRIV_UNLOCK(priv);
3572 break;
3573 case SIOCADDMULTI:
3574 case SIOCDELMULTI:
3575 mlx5e_set_rx_mode(ifp);
3576 break;
3577 case SIOCSIFMEDIA:
3578 case SIOCGIFMEDIA:
3579 case SIOCGIFXMEDIA:
3580 ifr = (struct ifreq *)data;
3581 error = ifmedia_ioctl(ifp, ifr, &priv->media, command);
3582 break;
3583 case SIOCGIFCAPNV:
3584 error = 0;
3585 break;
3586 case SIOCSIFCAP:
3587 ifr = (struct ifreq *)data;
3588 drv_ioctl_data = &drv_ioctl_data_d;
3589 drv_ioctl_data->reqcap = ifr->ifr_reqcap;
3590 PRIV_LOCK(priv);
3591 drv_ioctl_data->reqcap2 = if_getcapenable2(ifp);
3592 drv_ioctl_data->nvcap = NULL;
3593 goto siocsifcap_driver;
3594 case SIOCSIFCAPNV:
3595 drv_ioctl_data = (struct siocsifcapnv_driver_data *)data;
3596 PRIV_LOCK(priv);
3597 siocsifcap_driver:
3598 if (!mlx5e_is_tlstx_capable(priv->mdev)) {
3599 drv_ioctl_data->reqcap &= ~(IFCAP_TXTLS4 |
3600 IFCAP_TXTLS6);
3601 }
3602 if (!mlx5e_is_tlsrx_capable(priv->mdev)) {
3603 drv_ioctl_data->reqcap2 &= ~(
3604 IFCAP2_BIT(IFCAP2_RXTLS4) |
3605 IFCAP2_BIT(IFCAP2_RXTLS6));
3606 }
3607 if (!mlx5e_is_ipsec_capable(priv->mdev)) {
3608 drv_ioctl_data->reqcap2 &=
3609 ~IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD);
3610 }
3611 if (!mlx5e_is_ratelimit_capable(priv->mdev)) {
3612 drv_ioctl_data->reqcap &= ~(IFCAP_TXTLS_RTLMT |
3613 IFCAP_TXRTLMT);
3614 }
3615
3616 mask = drv_ioctl_data->reqcap ^ if_getcapenable(ifp);
3617
3618 if (mask & IFCAP_TXCSUM) {
3619 if_togglecapenable(ifp, IFCAP_TXCSUM);
3620 if_togglehwassist(ifp, (CSUM_TCP | CSUM_UDP | CSUM_IP));
3621
3622 if (IFCAP_TSO4 & if_getcapenable(ifp) &&
3623 !(IFCAP_TXCSUM & if_getcapenable(ifp))) {
3624 mask &= ~IFCAP_TSO4;
3625 if_setcapenablebit(ifp, 0, IFCAP_TSO4);
3626 if_sethwassistbits(ifp, 0, CSUM_IP_TSO);
3627 mlx5_en_err(ifp,
3628 "tso4 disabled due to -txcsum.\n");
3629 }
3630 }
3631 if (mask & IFCAP_TXCSUM_IPV6) {
3632 if_togglecapenable(ifp, IFCAP_TXCSUM_IPV6);
3633 if_togglehwassist(ifp, (CSUM_UDP_IPV6 | CSUM_TCP_IPV6));
3634
3635 if (IFCAP_TSO6 & if_getcapenable(ifp) &&
3636 !(IFCAP_TXCSUM_IPV6 & if_getcapenable(ifp))) {
3637 mask &= ~IFCAP_TSO6;
3638 if_setcapenablebit(ifp, 0, IFCAP_TSO6);
3639 if_sethwassistbits(ifp, 0, CSUM_IP6_TSO);
3640 mlx5_en_err(ifp,
3641 "tso6 disabled due to -txcsum6.\n");
3642 }
3643 }
3644 if (mask & IFCAP_MEXTPG)
3645 if_togglecapenable(ifp, IFCAP_MEXTPG);
3646 if (mask & IFCAP_TXTLS4)
3647 if_togglecapenable(ifp, IFCAP_TXTLS4);
3648 if (mask & IFCAP_TXTLS6)
3649 if_togglecapenable(ifp, IFCAP_TXTLS6);
3650 #ifdef RATELIMIT
3651 if (mask & IFCAP_TXTLS_RTLMT)
3652 if_togglecapenable(ifp, IFCAP_TXTLS_RTLMT);
3653 #endif
3654 if (mask & IFCAP_RXCSUM)
3655 if_togglecapenable(ifp, IFCAP_RXCSUM);
3656 if (mask & IFCAP_RXCSUM_IPV6)
3657 if_togglecapenable(ifp, IFCAP_RXCSUM_IPV6);
3658 if (mask & IFCAP_TSO4) {
3659 if (!(IFCAP_TSO4 & if_getcapenable(ifp)) &&
3660 !(IFCAP_TXCSUM & if_getcapenable(ifp))) {
3661 mlx5_en_err(ifp, "enable txcsum first.\n");
3662 error = EAGAIN;
3663 goto out;
3664 }
3665 if_togglecapenable(ifp, IFCAP_TSO4);
3666 if_togglehwassist(ifp, CSUM_IP_TSO);
3667 }
3668 if (mask & IFCAP_TSO6) {
3669 if (!(IFCAP_TSO6 & if_getcapenable(ifp)) &&
3670 !(IFCAP_TXCSUM_IPV6 & if_getcapenable(ifp))) {
3671 mlx5_en_err(ifp, "enable txcsum6 first.\n");
3672 error = EAGAIN;
3673 goto out;
3674 }
3675 if_togglecapenable(ifp, IFCAP_TSO6);
3676 if_togglehwassist(ifp, CSUM_IP6_TSO);
3677 }
3678 if (mask & IFCAP_VLAN_HWTSO)
3679 if_togglecapenable(ifp, IFCAP_VLAN_HWTSO);
3680 if (mask & IFCAP_VLAN_HWFILTER) {
3681 if (if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER)
3682 mlx5e_disable_vlan_filter(priv);
3683 else
3684 mlx5e_enable_vlan_filter(priv);
3685
3686 if_togglecapenable(ifp, IFCAP_VLAN_HWFILTER);
3687 }
3688 if (mask & IFCAP_VLAN_HWTAGGING)
3689 if_togglecapenable(ifp, IFCAP_VLAN_HWTAGGING);
3690 if (mask & IFCAP_WOL_MAGIC)
3691 if_togglecapenable(ifp, IFCAP_WOL_MAGIC);
3692 if (mask & IFCAP_VXLAN_HWCSUM) {
3693 const bool was_enabled =
3694 (if_getcapenable(ifp) & IFCAP_VXLAN_HWCSUM) != 0;
3695 if (was_enabled)
3696 mlx5e_del_all_vxlan_rules(priv);
3697 if_togglecapenable(ifp, IFCAP_VXLAN_HWCSUM);
3698 if_togglehwassist(ifp, CSUM_INNER_IP | CSUM_INNER_IP_UDP |
3699 CSUM_INNER_IP_TCP | CSUM_INNER_IP6_UDP |
3700 CSUM_INNER_IP6_TCP);
3701 if (!was_enabled) {
3702 int err = mlx5e_add_all_vxlan_rules(priv);
3703 if (err != 0) {
3704 mlx5_en_err(ifp,
3705 "mlx5e_add_all_vxlan_rules() failed, %d (ignored)\n", err);
3706 }
3707 }
3708 }
3709 if (mask & IFCAP_VXLAN_HWTSO) {
3710 if_togglecapenable(ifp, IFCAP_VXLAN_HWTSO);
3711 if_togglehwassist(ifp, CSUM_INNER_IP_TSO |
3712 CSUM_INNER_IP6_TSO);
3713 }
3714
3715 VLAN_CAPABILITIES(ifp);
3716
3717 /* hw_lro and IFCAP_LRO are divorsed, only toggle sw LRO. */
3718 if (mask & IFCAP_LRO)
3719 if_togglecapenable(ifp, IFCAP_LRO);
3720
3721 if (mask & IFCAP_HWRXTSTMP) {
3722 if_togglecapenable(ifp, IFCAP_HWRXTSTMP);
3723 if (if_getcapenable(ifp) & IFCAP_HWRXTSTMP) {
3724 if (priv->clbr_done == 0)
3725 mlx5e_reset_calibration_callout(priv);
3726 } else {
3727 callout_drain(&priv->tstmp_clbr);
3728 priv->clbr_done = 0;
3729 }
3730 }
3731 mask = drv_ioctl_data->reqcap2 ^ if_getcapenable2(ifp);
3732 if ((mask & IFCAP2_BIT(IFCAP2_RXTLS4)) != 0)
3733 if_togglecapenable2(ifp, IFCAP2_BIT(IFCAP2_RXTLS4));
3734 if ((mask & IFCAP2_BIT(IFCAP2_RXTLS6)) != 0)
3735 if_togglecapenable2(ifp, IFCAP2_BIT(IFCAP2_RXTLS6));
3736 #ifdef IPSEC_OFFLOAD
3737 if ((mask & IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD)) != 0) {
3738 bool was_enabled = (if_getcapenable2(ifp) &
3739 IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD)) != 0;
3740 mlx5e_close_locked(ifp);
3741 if (was_enabled)
3742 ipsec_accel_on_ifdown(priv->ifp);
3743 if_togglecapenable2(ifp,
3744 IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD));
3745 mlx5e_open_locked(ifp);
3746 }
3747 #endif
3748 out:
3749 PRIV_UNLOCK(priv);
3750 break;
3751
3752 case SIOCGI2C:
3753 ifr = (struct ifreq *)data;
3754
3755 /*
3756 * Copy from the user-space address ifr_data to the
3757 * kernel-space address i2c
3758 */
3759 error = copyin(ifr_data_get_ptr(ifr), &i2c, sizeof(i2c));
3760 if (error)
3761 break;
3762
3763 if (i2c.len > sizeof(i2c.data)) {
3764 error = EINVAL;
3765 break;
3766 }
3767
3768 PRIV_LOCK(priv);
3769 /* Get module_num which is required for the query_eeprom */
3770 error = mlx5_query_module_num(priv->mdev, &module_num);
3771 if (error) {
3772 mlx5_en_err(ifp,
3773 "Query module num failed, eeprom reading is not supported\n");
3774 error = EINVAL;
3775 goto err_i2c;
3776 }
3777 /* Check if module is present before doing an access */
3778 module_status = mlx5_query_module_status(priv->mdev, module_num);
3779 if (module_status != MLX5_MODULE_STATUS_PLUGGED_ENABLED) {
3780 if (bootverbose)
3781 mlx5_en_err(ifp,
3782 "Query module %d status: not plugged (%d), "
3783 "eeprom reading is not supported\n",
3784 module_num, module_status);
3785 error = EINVAL;
3786 goto err_i2c;
3787 }
3788 /*
3789 * Currently 0XA0 and 0xA2 are the only addresses permitted.
3790 * The internal conversion is as follows:
3791 */
3792 if (i2c.dev_addr == 0xA0)
3793 read_addr = MLX5_I2C_ADDR_LOW;
3794 else if (i2c.dev_addr == 0xA2)
3795 read_addr = MLX5_I2C_ADDR_HIGH;
3796 else {
3797 mlx5_en_err(ifp,
3798 "Query eeprom failed, Invalid Address: %X\n",
3799 i2c.dev_addr);
3800 error = EINVAL;
3801 goto err_i2c;
3802 }
3803 error = mlx5_query_eeprom(priv->mdev,
3804 read_addr, MLX5_EEPROM_LOW_PAGE,
3805 (uint32_t)i2c.offset, (uint32_t)i2c.len, module_num,
3806 (uint32_t *)i2c.data, &size_read);
3807 if (error) {
3808 mlx5_en_err(ifp,
3809 "Query eeprom failed, eeprom reading is not supported\n");
3810 error = EINVAL;
3811 goto err_i2c;
3812 }
3813
3814 if (i2c.len > MLX5_EEPROM_MAX_BYTES) {
3815 error = mlx5_query_eeprom(priv->mdev,
3816 read_addr, MLX5_EEPROM_LOW_PAGE,
3817 (uint32_t)(i2c.offset + size_read),
3818 (uint32_t)(i2c.len - size_read), module_num,
3819 (uint32_t *)(i2c.data + size_read), &size_read);
3820 }
3821 if (error) {
3822 mlx5_en_err(ifp,
3823 "Query eeprom failed, eeprom reading is not supported\n");
3824 error = EINVAL;
3825 goto err_i2c;
3826 }
3827
3828 error = copyout(&i2c, ifr_data_get_ptr(ifr), sizeof(i2c));
3829 err_i2c:
3830 PRIV_UNLOCK(priv);
3831 break;
3832 case SIOCGIFDOWNREASON:
3833 ifdr = (struct ifdownreason *)data;
3834 bzero(ifdr->ifdr_msg, sizeof(ifdr->ifdr_msg));
3835 PRIV_LOCK(priv);
3836 error = -mlx5_query_pddr_troubleshooting_info(priv->mdev, NULL,
3837 ifdr->ifdr_msg, sizeof(ifdr->ifdr_msg));
3838 PRIV_UNLOCK(priv);
3839 if (error == 0)
3840 ifdr->ifdr_reason = IFDR_REASON_MSG;
3841 break;
3842
3843 case SIOCGIFRSSKEY:
3844 ifrk = (struct ifrsskey *)data;
3845 ifrk->ifrk_func = RSS_FUNC_TOEPLITZ;
3846 ifrk->ifrk_keylen = MLX5E_RSS_KEY_SIZE;
3847 CTASSERT(sizeof(ifrk->ifrk_key) >= MLX5E_RSS_KEY_SIZE);
3848 mlx5e_get_rss_key(ifrk->ifrk_key);
3849 break;
3850
3851 case SIOCGIFRSSHASH:
3852 ifrh = (struct ifrsshash *)data;
3853 ifrh->ifrh_func = RSS_FUNC_TOEPLITZ;
3854 ifrh->ifrh_types =
3855 RSS_TYPE_IPV4 |
3856 RSS_TYPE_TCP_IPV4 |
3857 RSS_TYPE_UDP_IPV4 |
3858 RSS_TYPE_IPV6 |
3859 RSS_TYPE_TCP_IPV6 |
3860 RSS_TYPE_UDP_IPV6;
3861 break;
3862
3863 default:
3864 error = ether_ioctl(ifp, command, data);
3865 break;
3866 }
3867 return (error);
3868 }
3869
3870 static int
mlx5e_check_required_hca_cap(struct mlx5_core_dev * mdev)3871 mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
3872 {
3873 /*
3874 * TODO: uncoment once FW really sets all these bits if
3875 * (!mdev->caps.eth.rss_ind_tbl_cap || !mdev->caps.eth.csum_cap ||
3876 * !mdev->caps.eth.max_lso_cap || !mdev->caps.eth.vlan_cap ||
3877 * !(mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_SCQE_BRK_MOD)) return
3878 * -ENOTSUPP;
3879 */
3880
3881 /* TODO: add more must-to-have features */
3882
3883 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
3884 return (-ENODEV);
3885
3886 return (0);
3887 }
3888
3889 static u16
mlx5e_get_max_inline_cap(struct mlx5_core_dev * mdev)3890 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
3891 {
3892 const int min_size = ETHER_VLAN_ENCAP_LEN + ETHER_HDR_LEN;
3893 const int max_size = MLX5E_MAX_TX_INLINE;
3894 const int bf_buf_size =
3895 ((1U << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2U) -
3896 (sizeof(struct mlx5e_tx_wqe) - 2);
3897
3898 /* verify against driver limits */
3899 if (bf_buf_size > max_size)
3900 return (max_size);
3901 else if (bf_buf_size < min_size)
3902 return (min_size);
3903 else
3904 return (bf_buf_size);
3905 }
3906
3907 static int
mlx5e_build_ifp_priv(struct mlx5_core_dev * mdev,struct mlx5e_priv * priv,int num_comp_vectors)3908 mlx5e_build_ifp_priv(struct mlx5_core_dev *mdev,
3909 struct mlx5e_priv *priv,
3910 int num_comp_vectors)
3911 {
3912 int err;
3913
3914 /*
3915 * TODO: Consider link speed for setting "log_sq_size",
3916 * "log_rq_size" and "cq_moderation_xxx":
3917 */
3918 priv->params.log_sq_size =
3919 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
3920 priv->params.log_rq_size =
3921 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
3922 priv->params.rx_cq_moderation_usec =
3923 MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
3924 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE :
3925 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
3926 priv->params.rx_cq_moderation_mode =
3927 MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? 1 : 0;
3928 priv->params.rx_cq_moderation_pkts =
3929 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
3930 priv->params.tx_cq_moderation_usec =
3931 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
3932 priv->params.tx_cq_moderation_pkts =
3933 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
3934 priv->params.rx_hash_log_tbl_sz =
3935 (order_base_2(num_comp_vectors) >
3936 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ?
3937 order_base_2(num_comp_vectors) :
3938 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ;
3939 priv->params.num_tc = 1;
3940 priv->params.default_vlan_prio = 0;
3941 priv->counter_set_id = -1;
3942 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev);
3943
3944 err = mlx5_query_min_inline(mdev, &priv->params.tx_min_inline_mode);
3945 if (err)
3946 return (err);
3947
3948 /*
3949 * hw lro is currently defaulted to off. when it won't anymore we
3950 * will consider the HW capability: "!!MLX5_CAP_ETH(mdev, lro_cap)"
3951 */
3952 priv->params.hw_lro_en = false;
3953 priv->params.lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
3954
3955 /*
3956 * CQE zipping is off, because the per-packet 32-bit Toeplitz hash
3957 * is then not supported. The 32-bit Toeplitz hash is needed to
3958 * correctly demultiplex incoming traffic into the expected
3959 * network queues.
3960 */
3961 priv->params.cqe_zipping_en = false;
3962
3963 priv->mdev = mdev;
3964 priv->params.num_channels = num_comp_vectors;
3965 priv->params.channels_rsss = 1;
3966 priv->order_base_2_num_channels = order_base_2(num_comp_vectors);
3967 priv->queue_mapping_channel_mask =
3968 roundup_pow_of_two(num_comp_vectors) - 1;
3969 priv->num_tc = priv->params.num_tc;
3970 priv->default_vlan_prio = priv->params.default_vlan_prio;
3971
3972 INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
3973 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
3974 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
3975
3976 return (0);
3977 }
3978
3979 static void
mlx5e_mkey_set_relaxed_ordering(struct mlx5_core_dev * mdev,void * mkc)3980 mlx5e_mkey_set_relaxed_ordering(struct mlx5_core_dev *mdev, void *mkc)
3981 {
3982 bool ro_pci_enable =
3983 pci_get_relaxed_ordering_enabled(mdev->pdev->dev.bsddev);
3984 bool ro_write = MLX5_CAP_GEN(mdev, relaxed_ordering_write);
3985 bool ro_read = MLX5_CAP_GEN(mdev, relaxed_ordering_read);
3986
3987 MLX5_SET(mkc, mkc, relaxed_ordering_read, ro_pci_enable && ro_read);
3988 MLX5_SET(mkc, mkc, relaxed_ordering_write, ro_pci_enable && ro_write);
3989 }
3990
3991 static int
mlx5e_create_mkey(struct mlx5e_priv * priv,u32 pdn,struct mlx5_core_mkey * mkey)3992 mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
3993 struct mlx5_core_mkey *mkey)
3994 {
3995 if_t ifp = priv->ifp;
3996 struct mlx5_core_dev *mdev = priv->mdev;
3997 int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
3998 void *mkc;
3999 u32 *in;
4000 int err;
4001
4002 in = mlx5_vzalloc(inlen);
4003 if (in == NULL) {
4004 mlx5_en_err(ifp, "failed to allocate inbox\n");
4005 return (-ENOMEM);
4006 }
4007
4008 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
4009 MLX5_SET(mkc, mkc, access_mode, MLX5_ACCESS_MODE_PA);
4010 MLX5_SET(mkc, mkc, umr_en, 1); /* used by HW TLS */
4011 MLX5_SET(mkc, mkc, lw, 1);
4012 MLX5_SET(mkc, mkc, lr, 1);
4013 mlx5e_mkey_set_relaxed_ordering(mdev, mkc);
4014 MLX5_SET(mkc, mkc, pd, pdn);
4015 MLX5_SET(mkc, mkc, length64, 1);
4016 MLX5_SET(mkc, mkc, qpn, 0xffffff);
4017
4018 err = mlx5_core_create_mkey(mdev, mkey, in, inlen);
4019 if (err)
4020 mlx5_en_err(ifp, "mlx5_core_create_mkey failed, %d\n",
4021 err);
4022
4023 kvfree(in);
4024 return (err);
4025 }
4026
4027 static const char *mlx5e_vport_stats_desc[] = {
4028 MLX5E_VPORT_STATS(MLX5E_STATS_DESC)
4029 };
4030
4031 static const char *mlx5e_pport_stats_desc[] = {
4032 MLX5E_PPORT_STATS(MLX5E_STATS_DESC)
4033 };
4034
4035 static int
mlx5e_priv_static_init(struct mlx5e_priv * priv,struct mlx5_core_dev * mdev,const uint32_t channels)4036 mlx5e_priv_static_init(struct mlx5e_priv *priv, struct mlx5_core_dev *mdev,
4037 const uint32_t channels)
4038 {
4039 uint32_t x;
4040 int err;
4041
4042 mtx_init(&priv->async_events_mtx, "mlx5async", MTX_NETWORK_LOCK, MTX_DEF);
4043 sx_init(&priv->state_lock, "mlx5state");
4044 callout_init_mtx(&priv->watchdog, &priv->async_events_mtx, 0);
4045 MLX5_INIT_DOORBELL_LOCK(&priv->doorbell_lock);
4046 for (x = 0; x != channels; x++)
4047 mlx5e_chan_static_init(priv, &priv->channel[x], x);
4048
4049 for (x = 0; x != channels; x++) {
4050 err = mlx5_alloc_bfreg(mdev, &priv->channel[x].bfreg, false, false);
4051 if (err)
4052 goto err_alloc_bfreg;
4053 }
4054 return (0);
4055
4056 err_alloc_bfreg:
4057 while (x--)
4058 mlx5_free_bfreg(mdev, &priv->channel[x].bfreg);
4059
4060 for (x = 0; x != channels; x++)
4061 mlx5e_chan_static_destroy(&priv->channel[x]);
4062 callout_drain(&priv->watchdog);
4063 mtx_destroy(&priv->async_events_mtx);
4064 sx_destroy(&priv->state_lock);
4065 return (err);
4066 }
4067
4068 static void
mlx5e_priv_static_destroy(struct mlx5e_priv * priv,struct mlx5_core_dev * mdev,const uint32_t channels)4069 mlx5e_priv_static_destroy(struct mlx5e_priv *priv, struct mlx5_core_dev *mdev,
4070 const uint32_t channels)
4071 {
4072 uint32_t x;
4073
4074 for (x = 0; x != channels; x++)
4075 mlx5_free_bfreg(mdev, &priv->channel[x].bfreg);
4076 for (x = 0; x != channels; x++)
4077 mlx5e_chan_static_destroy(&priv->channel[x]);
4078 callout_drain(&priv->watchdog);
4079 mtx_destroy(&priv->async_events_mtx);
4080 sx_destroy(&priv->state_lock);
4081 }
4082
4083 static int
sysctl_firmware(SYSCTL_HANDLER_ARGS)4084 sysctl_firmware(SYSCTL_HANDLER_ARGS)
4085 {
4086 /*
4087 * %d.%d%.d the string format.
4088 * fw_rev_{maj,min,sub} return u16, 2^16 = 65536.
4089 * We need at most 5 chars to store that.
4090 * It also has: two "." and NULL at the end, which means we need 18
4091 * (5*3 + 3) chars at most.
4092 */
4093 char fw[18];
4094 struct mlx5e_priv *priv = arg1;
4095 int error;
4096
4097 snprintf(fw, sizeof(fw), "%d.%d.%d", fw_rev_maj(priv->mdev), fw_rev_min(priv->mdev),
4098 fw_rev_sub(priv->mdev));
4099 error = sysctl_handle_string(oidp, fw, sizeof(fw), req);
4100 return (error);
4101 }
4102
4103 static void
mlx5e_disable_tx_dma(struct mlx5e_channel * ch)4104 mlx5e_disable_tx_dma(struct mlx5e_channel *ch)
4105 {
4106 int i;
4107
4108 for (i = 0; i < ch->priv->num_tc; i++)
4109 mlx5e_drain_sq(&ch->sq[i]);
4110 }
4111
4112 static void
mlx5e_reset_sq_doorbell_record(struct mlx5e_sq * sq)4113 mlx5e_reset_sq_doorbell_record(struct mlx5e_sq *sq)
4114 {
4115
4116 sq->doorbell.d32[0] = cpu_to_be32(MLX5_OPCODE_NOP);
4117 sq->doorbell.d32[1] = cpu_to_be32(sq->sqn << 8);
4118 mlx5e_tx_notify_hw(sq, true);
4119 }
4120
4121 void
mlx5e_resume_sq(struct mlx5e_sq * sq)4122 mlx5e_resume_sq(struct mlx5e_sq *sq)
4123 {
4124 int err;
4125
4126 /* check if already enabled */
4127 if (READ_ONCE(sq->running) != 0)
4128 return;
4129
4130 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_ERR,
4131 MLX5_SQC_STATE_RST);
4132 if (err != 0) {
4133 mlx5_en_err(sq->ifp,
4134 "mlx5e_modify_sq() from ERR to RST failed: %d\n", err);
4135 }
4136
4137 sq->cc = 0;
4138 sq->pc = 0;
4139
4140 /* reset doorbell prior to moving from RST to RDY */
4141 mlx5e_reset_sq_doorbell_record(sq);
4142
4143 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST,
4144 MLX5_SQC_STATE_RDY);
4145 if (err != 0) {
4146 mlx5_en_err(sq->ifp,
4147 "mlx5e_modify_sq() from RST to RDY failed: %d\n", err);
4148 }
4149
4150 sq->cev_next_state = MLX5E_CEV_STATE_INITIAL;
4151 WRITE_ONCE(sq->running, 1);
4152 }
4153
4154 static void
mlx5e_enable_tx_dma(struct mlx5e_channel * ch)4155 mlx5e_enable_tx_dma(struct mlx5e_channel *ch)
4156 {
4157 int i;
4158
4159 for (i = 0; i < ch->priv->num_tc; i++)
4160 mlx5e_resume_sq(&ch->sq[i]);
4161 }
4162
4163 static void
mlx5e_disable_rx_dma(struct mlx5e_channel * ch)4164 mlx5e_disable_rx_dma(struct mlx5e_channel *ch)
4165 {
4166 struct mlx5e_rq *rq = &ch->rq;
4167 struct epoch_tracker et;
4168 int err;
4169
4170 mtx_lock(&rq->mtx);
4171 rq->enabled = 0;
4172 callout_stop(&rq->watchdog);
4173 mtx_unlock(&rq->mtx);
4174
4175 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
4176 if (err != 0) {
4177 mlx5_en_err(rq->ifp,
4178 "mlx5e_modify_rq() from RDY to RST failed: %d\n", err);
4179 }
4180
4181 while (!mlx5_wq_ll_is_empty(&rq->wq)) {
4182 msleep(1);
4183 NET_EPOCH_ENTER(et);
4184 rq->cq.mcq.comp(&rq->cq.mcq, NULL);
4185 NET_EPOCH_EXIT(et);
4186 }
4187
4188 /*
4189 * Transitioning into RST state will allow the FW to track less ERR state queues,
4190 * thus reducing the recv queue flushing time
4191 */
4192 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_ERR, MLX5_RQC_STATE_RST);
4193 if (err != 0) {
4194 mlx5_en_err(rq->ifp,
4195 "mlx5e_modify_rq() from ERR to RST failed: %d\n", err);
4196 }
4197 }
4198
4199 static void
mlx5e_enable_rx_dma(struct mlx5e_channel * ch)4200 mlx5e_enable_rx_dma(struct mlx5e_channel *ch)
4201 {
4202 struct mlx5e_rq *rq = &ch->rq;
4203 struct epoch_tracker et;
4204 int err;
4205
4206 rq->wq.wqe_ctr = 0;
4207 mlx5_wq_ll_update_db_record(&rq->wq);
4208 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
4209 if (err != 0) {
4210 mlx5_en_err(rq->ifp,
4211 "mlx5e_modify_rq() from RST to RDY failed: %d\n", err);
4212 }
4213
4214 rq->enabled = 1;
4215
4216 NET_EPOCH_ENTER(et);
4217 rq->cq.mcq.comp(&rq->cq.mcq, NULL);
4218 NET_EPOCH_EXIT(et);
4219 }
4220
4221 void
mlx5e_modify_tx_dma(struct mlx5e_priv * priv,uint8_t value)4222 mlx5e_modify_tx_dma(struct mlx5e_priv *priv, uint8_t value)
4223 {
4224 int i;
4225
4226 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
4227 return;
4228
4229 for (i = 0; i < priv->params.num_channels; i++) {
4230 if (value)
4231 mlx5e_disable_tx_dma(&priv->channel[i]);
4232 else
4233 mlx5e_enable_tx_dma(&priv->channel[i]);
4234 }
4235 }
4236
4237 void
mlx5e_modify_rx_dma(struct mlx5e_priv * priv,uint8_t value)4238 mlx5e_modify_rx_dma(struct mlx5e_priv *priv, uint8_t value)
4239 {
4240 int i;
4241
4242 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
4243 return;
4244
4245 for (i = 0; i < priv->params.num_channels; i++) {
4246 if (value)
4247 mlx5e_disable_rx_dma(&priv->channel[i]);
4248 else
4249 mlx5e_enable_rx_dma(&priv->channel[i]);
4250 }
4251 }
4252
4253 static void
mlx5e_add_hw_stats(struct mlx5e_priv * priv)4254 mlx5e_add_hw_stats(struct mlx5e_priv *priv)
4255 {
4256 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw),
4257 OID_AUTO, "fw_version", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
4258 priv, 0, sysctl_firmware, "A", "HCA firmware version");
4259
4260 SYSCTL_ADD_STRING(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw),
4261 OID_AUTO, "board_id", CTLFLAG_RD, priv->mdev->board_id, 0,
4262 "Board ID");
4263 }
4264
4265 static int
mlx5e_sysctl_tx_priority_flow_control(SYSCTL_HANDLER_ARGS)4266 mlx5e_sysctl_tx_priority_flow_control(SYSCTL_HANDLER_ARGS)
4267 {
4268 struct mlx5e_priv *priv = arg1;
4269 uint8_t temp[MLX5E_MAX_PRIORITY];
4270 uint32_t tx_pfc;
4271 int err;
4272 int i;
4273
4274 PRIV_LOCK(priv);
4275
4276 tx_pfc = priv->params.tx_priority_flow_control;
4277
4278 for (i = 0; i != MLX5E_MAX_PRIORITY; i++)
4279 temp[i] = (tx_pfc >> i) & 1;
4280
4281 err = SYSCTL_OUT(req, temp, MLX5E_MAX_PRIORITY);
4282 if (err || !req->newptr)
4283 goto done;
4284 err = SYSCTL_IN(req, temp, MLX5E_MAX_PRIORITY);
4285 if (err)
4286 goto done;
4287
4288 priv->params.tx_priority_flow_control = 0;
4289
4290 /* range check input value */
4291 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) {
4292 if (temp[i] > 1) {
4293 err = ERANGE;
4294 goto done;
4295 }
4296 priv->params.tx_priority_flow_control |= (temp[i] << i);
4297 }
4298
4299 /* check if update is required */
4300 if (tx_pfc != priv->params.tx_priority_flow_control)
4301 err = -mlx5e_set_port_pfc(priv);
4302 done:
4303 if (err != 0)
4304 priv->params.tx_priority_flow_control= tx_pfc;
4305 PRIV_UNLOCK(priv);
4306
4307 return (err);
4308 }
4309
4310 static int
mlx5e_sysctl_rx_priority_flow_control(SYSCTL_HANDLER_ARGS)4311 mlx5e_sysctl_rx_priority_flow_control(SYSCTL_HANDLER_ARGS)
4312 {
4313 struct mlx5e_priv *priv = arg1;
4314 uint8_t temp[MLX5E_MAX_PRIORITY];
4315 uint32_t rx_pfc;
4316 int err;
4317 int i;
4318
4319 PRIV_LOCK(priv);
4320
4321 rx_pfc = priv->params.rx_priority_flow_control;
4322
4323 for (i = 0; i != MLX5E_MAX_PRIORITY; i++)
4324 temp[i] = (rx_pfc >> i) & 1;
4325
4326 err = SYSCTL_OUT(req, temp, MLX5E_MAX_PRIORITY);
4327 if (err || !req->newptr)
4328 goto done;
4329 err = SYSCTL_IN(req, temp, MLX5E_MAX_PRIORITY);
4330 if (err)
4331 goto done;
4332
4333 priv->params.rx_priority_flow_control = 0;
4334
4335 /* range check input value */
4336 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) {
4337 if (temp[i] > 1) {
4338 err = ERANGE;
4339 goto done;
4340 }
4341 priv->params.rx_priority_flow_control |= (temp[i] << i);
4342 }
4343
4344 /* check if update is required */
4345 if (rx_pfc != priv->params.rx_priority_flow_control) {
4346 err = -mlx5e_set_port_pfc(priv);
4347 if (err == 0 && priv->sw_is_port_buf_owner)
4348 err = mlx5e_update_buf_lossy(priv);
4349 }
4350 done:
4351 if (err != 0)
4352 priv->params.rx_priority_flow_control= rx_pfc;
4353 PRIV_UNLOCK(priv);
4354
4355 return (err);
4356 }
4357
4358 static void
mlx5e_setup_pauseframes(struct mlx5e_priv * priv)4359 mlx5e_setup_pauseframes(struct mlx5e_priv *priv)
4360 {
4361 int error;
4362
4363 /* enable pauseframes by default */
4364 priv->params.tx_pauseframe_control = 1;
4365 priv->params.rx_pauseframe_control = 1;
4366
4367 /* disable ports flow control, PFC, by default */
4368 priv->params.tx_priority_flow_control = 0;
4369 priv->params.rx_priority_flow_control = 0;
4370
4371 /* register pauseframe SYSCTLs */
4372 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4373 OID_AUTO, "tx_pauseframe_control", CTLFLAG_RDTUN,
4374 &priv->params.tx_pauseframe_control, 0,
4375 "Set to enable TX pause frames. Clear to disable.");
4376
4377 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4378 OID_AUTO, "rx_pauseframe_control", CTLFLAG_RDTUN,
4379 &priv->params.rx_pauseframe_control, 0,
4380 "Set to enable RX pause frames. Clear to disable.");
4381
4382 /* register priority flow control, PFC, SYSCTLs */
4383 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4384 OID_AUTO, "tx_priority_flow_control", CTLTYPE_U8 | CTLFLAG_RWTUN |
4385 CTLFLAG_MPSAFE, priv, 0, &mlx5e_sysctl_tx_priority_flow_control, "CU",
4386 "Set to enable TX ports flow control frames for priorities 0..7. Clear to disable.");
4387
4388 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4389 OID_AUTO, "rx_priority_flow_control", CTLTYPE_U8 | CTLFLAG_RWTUN |
4390 CTLFLAG_MPSAFE, priv, 0, &mlx5e_sysctl_rx_priority_flow_control, "CU",
4391 "Set to enable RX ports flow control frames for priorities 0..7. Clear to disable.");
4392
4393 PRIV_LOCK(priv);
4394
4395 /* range check */
4396 priv->params.tx_pauseframe_control =
4397 priv->params.tx_pauseframe_control ? 1 : 0;
4398 priv->params.rx_pauseframe_control =
4399 priv->params.rx_pauseframe_control ? 1 : 0;
4400
4401 /* update firmware */
4402 error = mlx5e_set_port_pause_and_pfc(priv);
4403 if (error == -EINVAL) {
4404 mlx5_en_err(priv->ifp,
4405 "Global pauseframes must be disabled before enabling PFC.\n");
4406 priv->params.rx_priority_flow_control = 0;
4407 priv->params.tx_priority_flow_control = 0;
4408
4409 /* update firmware */
4410 (void) mlx5e_set_port_pause_and_pfc(priv);
4411 }
4412 PRIV_UNLOCK(priv);
4413 }
4414
4415 static int
mlx5e_ul_snd_tag_alloc(if_t ifp,union if_snd_tag_alloc_params * params,struct m_snd_tag ** ppmt)4416 mlx5e_ul_snd_tag_alloc(if_t ifp,
4417 union if_snd_tag_alloc_params *params,
4418 struct m_snd_tag **ppmt)
4419 {
4420 struct mlx5e_priv *priv;
4421 struct mlx5e_channel *pch;
4422
4423 priv = if_getsoftc(ifp);
4424
4425 if (unlikely(priv->gone || params->hdr.flowtype == M_HASHTYPE_NONE)) {
4426 return (EOPNOTSUPP);
4427 } else {
4428 /* keep this code synced with mlx5e_select_queue() */
4429 u32 ch = priv->params.num_channels;
4430 #ifdef RSS
4431 u32 temp;
4432
4433 if (rss_hash2bucket(params->hdr.flowid,
4434 params->hdr.flowtype, &temp) == 0)
4435 ch = temp % ch;
4436 else
4437 #endif
4438 ch = (params->hdr.flowid % 128) % ch;
4439
4440 /*
4441 * NOTE: The channels array is only freed at detach
4442 * and it safe to return a pointer to the send tag
4443 * inside the channels structure as long as we
4444 * reference the priv.
4445 */
4446 pch = priv->channel + ch;
4447
4448 /* check if send queue is not running */
4449 if (unlikely(pch->sq[0].running == 0))
4450 return (ENXIO);
4451 m_snd_tag_ref(&pch->tag);
4452 *ppmt = &pch->tag;
4453 return (0);
4454 }
4455 }
4456
4457 static int
mlx5e_ul_snd_tag_query(struct m_snd_tag * pmt,union if_snd_tag_query_params * params)4458 mlx5e_ul_snd_tag_query(struct m_snd_tag *pmt, union if_snd_tag_query_params *params)
4459 {
4460 struct mlx5e_channel *pch =
4461 container_of(pmt, struct mlx5e_channel, tag);
4462
4463 params->unlimited.max_rate = -1ULL;
4464 params->unlimited.queue_level = mlx5e_sq_queue_level(&pch->sq[0]);
4465 return (0);
4466 }
4467
4468 static void
mlx5e_ul_snd_tag_free(struct m_snd_tag * pmt)4469 mlx5e_ul_snd_tag_free(struct m_snd_tag *pmt)
4470 {
4471 struct mlx5e_channel *pch =
4472 container_of(pmt, struct mlx5e_channel, tag);
4473
4474 complete(&pch->completion);
4475 }
4476
4477 static int
mlx5e_snd_tag_alloc(if_t ifp,union if_snd_tag_alloc_params * params,struct m_snd_tag ** ppmt)4478 mlx5e_snd_tag_alloc(if_t ifp,
4479 union if_snd_tag_alloc_params *params,
4480 struct m_snd_tag **ppmt)
4481 {
4482
4483 switch (params->hdr.type) {
4484 #ifdef RATELIMIT
4485 case IF_SND_TAG_TYPE_RATE_LIMIT:
4486 return (mlx5e_rl_snd_tag_alloc(ifp, params, ppmt));
4487 #ifdef KERN_TLS
4488 case IF_SND_TAG_TYPE_TLS_RATE_LIMIT:
4489 return (mlx5e_tls_snd_tag_alloc(ifp, params, ppmt));
4490 #endif
4491 #endif
4492 case IF_SND_TAG_TYPE_UNLIMITED:
4493 return (mlx5e_ul_snd_tag_alloc(ifp, params, ppmt));
4494 #ifdef KERN_TLS
4495 case IF_SND_TAG_TYPE_TLS:
4496 return (mlx5e_tls_snd_tag_alloc(ifp, params, ppmt));
4497 case IF_SND_TAG_TYPE_TLS_RX:
4498 return (mlx5e_tls_rx_snd_tag_alloc(ifp, params, ppmt));
4499 #endif
4500 default:
4501 return (EOPNOTSUPP);
4502 }
4503 }
4504
4505 #ifdef RATELIMIT
4506 #define NUM_HDWR_RATES_MLX 13
4507 static const uint64_t adapter_rates_mlx[NUM_HDWR_RATES_MLX] = {
4508 135375, /* 1,083,000 */
4509 180500, /* 1,444,000 */
4510 270750, /* 2,166,000 */
4511 361000, /* 2,888,000 */
4512 541500, /* 4,332,000 */
4513 721875, /* 5,775,000 */
4514 1082875, /* 8,663,000 */
4515 1443875, /* 11,551,000 */
4516 2165750, /* 17,326,000 */
4517 2887750, /* 23,102,000 */
4518 4331625, /* 34,653,000 */
4519 5775500, /* 46,204,000 */
4520 8663125 /* 69,305,000 */
4521 };
4522
4523 static void
mlx5e_ratelimit_query(if_t ifp __unused,struct if_ratelimit_query_results * q)4524 mlx5e_ratelimit_query(if_t ifp __unused, struct if_ratelimit_query_results *q)
4525 {
4526 /*
4527 * This function needs updating by the driver maintainer!
4528 * For the MLX card there are currently (ConectX-4?) 13
4529 * pre-set rates and others i.e. ConnectX-5, 6, 7??
4530 *
4531 * This will change based on later adapters
4532 * and this code should be updated to look at ifp
4533 * and figure out the specific adapter type
4534 * settings i.e. how many rates as well
4535 * as if they are fixed (as is shown here) or
4536 * if they are dynamic (example chelsio t4). Also if there
4537 * is a maximum number of flows that the adapter
4538 * can handle that too needs to be updated in
4539 * the max_flows field.
4540 */
4541 q->rate_table = adapter_rates_mlx;
4542 q->flags = RT_IS_FIXED_TABLE;
4543 q->max_flows = 0; /* mlx has no limit */
4544 q->number_of_rates = NUM_HDWR_RATES_MLX;
4545 q->min_segment_burst = 1;
4546 }
4547 #endif
4548
4549 static void
mlx5e_ifm_add(struct mlx5e_priv * priv,int type)4550 mlx5e_ifm_add(struct mlx5e_priv *priv, int type)
4551 {
4552 ifmedia_add(&priv->media, type | IFM_ETHER, 0, NULL);
4553 ifmedia_add(&priv->media, type | IFM_ETHER |
4554 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL);
4555 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_ETH_RXPAUSE, 0, NULL);
4556 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_ETH_TXPAUSE, 0, NULL);
4557 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX, 0, NULL);
4558 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX |
4559 IFM_ETH_RXPAUSE, 0, NULL);
4560 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX |
4561 IFM_ETH_TXPAUSE, 0, NULL);
4562 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX |
4563 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL);
4564 }
4565
4566 static void *
mlx5e_create_ifp(struct mlx5_core_dev * mdev)4567 mlx5e_create_ifp(struct mlx5_core_dev *mdev)
4568 {
4569 if_t ifp;
4570 struct mlx5e_priv *priv;
4571 u8 dev_addr[ETHER_ADDR_LEN] __aligned(4);
4572 struct sysctl_oid_list *child;
4573 int ncv = mdev->priv.eq_table.num_comp_vectors;
4574 char unit[16];
4575 struct pfil_head_args pa;
4576 int err;
4577 u32 eth_proto_cap;
4578 u32 out[MLX5_ST_SZ_DW(ptys_reg)];
4579 bool ext;
4580 struct media media_entry = {};
4581
4582 if (mlx5e_check_required_hca_cap(mdev)) {
4583 mlx5_core_dbg(mdev, "mlx5e_check_required_hca_cap() failed\n");
4584 return (NULL);
4585 }
4586
4587 /*
4588 * Try to allocate the priv and make room for worst-case
4589 * number of channel structures:
4590 */
4591 priv = malloc_domainset(sizeof(*priv) +
4592 (sizeof(priv->channel[0]) * mdev->priv.eq_table.num_comp_vectors),
4593 M_MLX5EN, mlx5_dev_domainset(mdev), M_WAITOK | M_ZERO);
4594
4595 ifp = priv->ifp = if_alloc_dev(IFT_ETHER, mdev->pdev->dev.bsddev);
4596 /* setup all static fields */
4597 if (mlx5e_priv_static_init(priv, mdev, mdev->priv.eq_table.num_comp_vectors)) {
4598 mlx5_core_err(mdev, "mlx5e_priv_static_init() failed\n");
4599 goto err_free_ifp;
4600 }
4601
4602 if_setsoftc(ifp, priv);
4603 if_initname(ifp, "mce", device_get_unit(mdev->pdev->dev.bsddev));
4604 if_setmtu(ifp, ETHERMTU);
4605 if_setinitfn(ifp, mlx5e_open);
4606 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
4607 if_setioctlfn(ifp, mlx5e_ioctl);
4608 if_settransmitfn(ifp, mlx5e_xmit);
4609 if_setqflushfn(ifp, if_qflush);
4610 if_setgetcounterfn(ifp, mlx5e_get_counter);
4611 if_setsendqlen(ifp, ifqmaxlen);
4612 /*
4613 * Set driver features
4614 */
4615 if_setcapabilities(ifp, IFCAP_NV);
4616 if_setcapabilitiesbit(ifp, IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6, 0);
4617 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING, 0);
4618 if_setcapabilitiesbit(ifp, IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWFILTER, 0);
4619 if_setcapabilitiesbit(ifp, IFCAP_LINKSTATE | IFCAP_JUMBO_MTU, 0);
4620 if_setcapabilitiesbit(ifp, IFCAP_LRO, 0);
4621 if_setcapabilitiesbit(ifp, IFCAP_TSO | IFCAP_VLAN_HWTSO, 0);
4622 if_setcapabilitiesbit(ifp, IFCAP_HWSTATS | IFCAP_HWRXTSTMP, 0);
4623 if_setcapabilitiesbit(ifp, IFCAP_MEXTPG, 0);
4624 if (mlx5e_is_tlstx_capable(mdev))
4625 if_setcapabilitiesbit(ifp, IFCAP_TXTLS4 | IFCAP_TXTLS6, 0);
4626 if (mlx5e_is_tlsrx_capable(mdev))
4627 if_setcapabilities2bit(ifp, IFCAP2_BIT(IFCAP2_RXTLS4) |
4628 IFCAP2_BIT(IFCAP2_RXTLS6), 0);
4629 if (mlx5e_is_ratelimit_capable(mdev)) {
4630 if_setcapabilitiesbit(ifp, IFCAP_TXRTLMT, 0);
4631 if (mlx5e_is_tlstx_capable(mdev))
4632 if_setcapabilitiesbit(ifp, IFCAP_TXTLS_RTLMT, 0);
4633 }
4634 if_setcapabilitiesbit(ifp, IFCAP_VXLAN_HWCSUM | IFCAP_VXLAN_HWTSO, 0);
4635 if (mlx5e_is_ipsec_capable(mdev))
4636 if_setcapabilities2bit(ifp, IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD),
4637 0);
4638
4639 if_setsndtagallocfn(ifp, mlx5e_snd_tag_alloc);
4640 #ifdef RATELIMIT
4641 if_setratelimitqueryfn(ifp, mlx5e_ratelimit_query);
4642 #endif
4643 /* set TSO limits so that we don't have to drop TX packets */
4644 if_sethwtsomax(ifp, MLX5E_MAX_TX_PAYLOAD_SIZE - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN));
4645 if_sethwtsomaxsegcount(ifp, MLX5E_MAX_TX_MBUF_FRAGS - 1 /* hdr */);
4646 if_sethwtsomaxsegsize(ifp, MLX5E_MAX_TX_MBUF_SIZE);
4647
4648 if_setcapenable(ifp, if_getcapabilities(ifp));
4649 if_setcapenable2(ifp, if_getcapabilities2(ifp));
4650 if_sethwassist(ifp, 0);
4651 if (if_getcapenable(ifp) & IFCAP_TSO)
4652 if_sethwassistbits(ifp, CSUM_TSO, 0);
4653 if (if_getcapenable(ifp) & IFCAP_TXCSUM)
4654 if_sethwassistbits(ifp, (CSUM_TCP | CSUM_UDP | CSUM_IP), 0);
4655 if (if_getcapenable(ifp) & IFCAP_TXCSUM_IPV6)
4656 if_sethwassistbits(ifp, (CSUM_UDP_IPV6 | CSUM_TCP_IPV6), 0);
4657 if (if_getcapabilities(ifp) & IFCAP_VXLAN_HWCSUM)
4658 if_sethwassistbits(ifp, CSUM_INNER_IP6_UDP | CSUM_INNER_IP6_TCP |
4659 CSUM_INNER_IP | CSUM_INNER_IP_UDP | CSUM_INNER_IP_TCP |
4660 CSUM_ENCAP_VXLAN, 0);
4661 if (if_getcapabilities(ifp) & IFCAP_VXLAN_HWTSO)
4662 if_sethwassistbits(ifp, CSUM_INNER_IP6_TSO | CSUM_INNER_IP_TSO, 0);
4663
4664 /* ifnet sysctl tree */
4665 sysctl_ctx_init(&priv->sysctl_ctx);
4666 priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_STATIC_CHILDREN(_dev),
4667 OID_AUTO, if_getdname(ifp), CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
4668 "MLX5 ethernet - interface name");
4669 if (priv->sysctl_ifnet == NULL) {
4670 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
4671 goto err_free_sysctl;
4672 }
4673 snprintf(unit, sizeof(unit), "%d", if_getdunit(ifp));
4674 priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4675 OID_AUTO, unit, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
4676 "MLX5 ethernet - interface unit");
4677 if (priv->sysctl_ifnet == NULL) {
4678 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
4679 goto err_free_sysctl;
4680 }
4681
4682 /* HW sysctl tree */
4683 child = SYSCTL_CHILDREN(device_get_sysctl_tree(mdev->pdev->dev.bsddev));
4684 priv->sysctl_hw = SYSCTL_ADD_NODE(&priv->sysctl_ctx, child,
4685 OID_AUTO, "hw", CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
4686 "MLX5 ethernet dev hw");
4687 if (priv->sysctl_hw == NULL) {
4688 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
4689 goto err_free_sysctl;
4690 }
4691
4692 err = mlx5e_build_ifp_priv(mdev, priv, ncv);
4693 if (err) {
4694 mlx5_core_err(mdev, "mlx5e_build_ifp_priv() failed (%d)\n", err);
4695 goto err_free_sysctl;
4696 }
4697
4698 /* reuse mlx5core's watchdog workqueue */
4699 priv->wq = mdev->priv.health.wq_watchdog;
4700
4701 err = mlx5_core_alloc_pd(mdev, &priv->pdn, 0);
4702 if (err) {
4703 mlx5_en_err(ifp, "mlx5_core_alloc_pd failed, %d\n", err);
4704 goto err_free_wq;
4705 }
4706 err = mlx5_alloc_transport_domain(mdev, &priv->tdn, 0);
4707 if (err) {
4708 mlx5_en_err(ifp,
4709 "mlx5_alloc_transport_domain failed, %d\n", err);
4710 goto err_dealloc_pd;
4711 }
4712 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr);
4713 if (err) {
4714 mlx5_en_err(ifp, "mlx5e_create_mkey failed, %d\n", err);
4715 goto err_dealloc_transport_domain;
4716 }
4717 mlx5_query_nic_vport_mac_address(priv->mdev, 0, dev_addr);
4718
4719 /* check if we should generate a random MAC address */
4720 if (MLX5_CAP_GEN(priv->mdev, vport_group_manager) == 0 &&
4721 is_zero_ether_addr(dev_addr)) {
4722 random_ether_addr(dev_addr);
4723 mlx5_en_err(ifp, "Assigned random MAC address\n");
4724 }
4725
4726 err = mlx5e_rl_init(priv);
4727 if (err) {
4728 mlx5_en_err(ifp, "mlx5e_rl_init failed, %d\n", err);
4729 goto err_create_mkey;
4730 }
4731
4732 err = mlx5e_tls_init(priv);
4733 if (err) {
4734 if_printf(ifp, "%s: mlx5e_tls_init failed\n", __func__);
4735 goto err_rl_init;
4736 }
4737
4738 if ((if_getcapenable2(ifp) & IFCAP2_BIT(IFCAP2_IPSEC_OFFLOAD)) != 0) {
4739 err = mlx5e_ipsec_init(priv);
4740 if (err) {
4741 if_printf(ifp, "%s: mlx5e_tls_init failed\n", __func__);
4742 goto err_tls_init;
4743 }
4744 }
4745
4746 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
4747 if (err) {
4748 if_printf(ifp, "%s: mlx5e_open_drop_rq failed (%d)\n", __func__, err);
4749 goto err_ipsec_init;
4750 }
4751
4752 err = mlx5e_open_rqts(priv);
4753 if (err) {
4754 if_printf(ifp, "%s: mlx5e_open_rqts failed (%d)\n", __func__, err);
4755 goto err_open_drop_rq;
4756 }
4757
4758 err = mlx5e_open_tirs(priv);
4759 if (err) {
4760 mlx5_en_err(ifp, "mlx5e_open_tirs() failed, %d\n", err);
4761 goto err_open_rqts;
4762 }
4763
4764 err = mlx5e_open_flow_tables(priv);
4765 if (err) {
4766 if_printf(ifp, "%s: mlx5e_open_flow_tables failed (%d)\n", __func__, err);
4767 goto err_open_tirs;
4768 }
4769
4770 err = mlx5e_tls_rx_init(priv);
4771 if (err) {
4772 if_printf(ifp, "%s: mlx5e_tls_rx_init() failed, %d\n", __func__, err);
4773 goto err_open_flow_tables;
4774 }
4775
4776 /* set default MTU */
4777 mlx5e_set_dev_port_mtu(ifp, if_getmtu(ifp));
4778
4779 /* Set default media status */
4780 priv->media_status_last = IFM_AVALID;
4781 priv->media_active_last = IFM_ETHER | IFM_AUTO | IFM_FDX;
4782
4783 /* setup default pauseframes configuration */
4784 mlx5e_setup_pauseframes(priv);
4785
4786 /* Setup supported medias */
4787 if (!mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, 1)) {
4788 ext = MLX5_CAP_PCAM_FEATURE(mdev,
4789 ptys_extended_ethernet);
4790 eth_proto_cap = MLX5_GET_ETH_PROTO(ptys_reg, out, ext,
4791 eth_proto_capability);
4792 } else {
4793 ext = false;
4794 eth_proto_cap = 0;
4795 mlx5_en_err(ifp, "Query port media capability failed, %d\n", err);
4796 }
4797
4798 ifmedia_init(&priv->media, IFM_IMASK,
4799 mlx5e_media_change, mlx5e_media_status);
4800
4801 if (ext) {
4802 for (unsigned i = 0; i != MLX5E_EXT_LINK_SPEEDS_NUMBER; i++) {
4803 /* check if hardware has the right capability */
4804 if (MLX5E_PROT_MASK(i) & ~eth_proto_cap)
4805 continue;
4806 for (unsigned j = 0; j != MLX5E_CABLE_TYPE_NUMBER; j++) {
4807 media_entry = mlx5e_ext_mode_table[i][j];
4808 if (media_entry.subtype == 0)
4809 continue;
4810 /* check if this subtype was already added */
4811 for (unsigned k = 0; k != i; k++) {
4812 /* check if hardware has the right capability */
4813 if (MLX5E_PROT_MASK(k) & ~eth_proto_cap)
4814 continue;
4815 for (unsigned m = 0; m != MLX5E_CABLE_TYPE_NUMBER; m++) {
4816 if (media_entry.subtype == mlx5e_ext_mode_table[k][m].subtype)
4817 goto skip_ext_media;
4818 }
4819 }
4820 mlx5e_ifm_add(priv, media_entry.subtype);
4821 skip_ext_media:;
4822 }
4823 }
4824 } else {
4825 for (unsigned i = 0; i != MLX5E_LINK_SPEEDS_NUMBER; i++) {
4826 media_entry = mlx5e_mode_table[i];
4827 if (media_entry.subtype == 0)
4828 continue;
4829 if (MLX5E_PROT_MASK(i) & ~eth_proto_cap)
4830 continue;
4831 /* check if this subtype was already added */
4832 for (unsigned k = 0; k != i; k++) {
4833 if (media_entry.subtype == mlx5e_mode_table[k].subtype)
4834 goto skip_media;
4835 }
4836 mlx5e_ifm_add(priv, media_entry.subtype);
4837
4838 /* NOTE: 10G ER and LR shares the same entry */
4839 if (media_entry.subtype == IFM_10G_ER)
4840 mlx5e_ifm_add(priv, IFM_10G_LR);
4841 skip_media:;
4842 }
4843 }
4844
4845 mlx5e_ifm_add(priv, IFM_AUTO);
4846
4847 /* Set autoselect by default */
4848 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO | IFM_FDX |
4849 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE);
4850
4851 DEBUGNET_SET(ifp, mlx5_en);
4852
4853 ether_ifattach(ifp, dev_addr);
4854
4855 /* Register for VLAN events */
4856 priv->vlan_attach = EVENTHANDLER_REGISTER(vlan_config,
4857 mlx5e_vlan_rx_add_vid, priv, EVENTHANDLER_PRI_FIRST);
4858 priv->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig,
4859 mlx5e_vlan_rx_kill_vid, priv, EVENTHANDLER_PRI_FIRST);
4860
4861 /* Register for VxLAN events */
4862 priv->vxlan_start = EVENTHANDLER_REGISTER(vxlan_start,
4863 mlx5e_vxlan_start, priv, EVENTHANDLER_PRI_ANY);
4864 priv->vxlan_stop = EVENTHANDLER_REGISTER(vxlan_stop,
4865 mlx5e_vxlan_stop, priv, EVENTHANDLER_PRI_ANY);
4866
4867 /* Link is down by default */
4868 if_link_state_change(ifp, LINK_STATE_DOWN);
4869
4870 mlx5e_enable_async_events(priv);
4871
4872 mlx5e_add_hw_stats(priv);
4873
4874 mlx5e_create_stats(&priv->stats.vport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4875 "vstats", mlx5e_vport_stats_desc, MLX5E_VPORT_STATS_NUM,
4876 priv->stats.vport.arg);
4877
4878 mlx5e_create_stats(&priv->stats.pport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4879 "pstats", mlx5e_pport_stats_desc, MLX5E_PPORT_STATS_NUM,
4880 priv->stats.pport.arg);
4881
4882 mlx5e_create_ethtool(priv);
4883
4884 mtx_lock(&priv->async_events_mtx);
4885 mlx5e_update_stats(priv);
4886 mtx_unlock(&priv->async_events_mtx);
4887
4888 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
4889 OID_AUTO, "rx_clbr_done", CTLFLAG_RD,
4890 &priv->clbr_done, 0,
4891 "RX timestamps calibration state");
4892 callout_init(&priv->tstmp_clbr, 1);
4893 /* Pull out the frequency of the clock in hz */
4894 priv->cclk = (uint64_t)MLX5_CAP_GEN(mdev, device_frequency_khz) * 1000ULL;
4895 mlx5e_reset_calibration_callout(priv);
4896
4897 pa.pa_version = PFIL_VERSION;
4898 pa.pa_flags = PFIL_IN;
4899 pa.pa_type = PFIL_TYPE_ETHERNET;
4900 pa.pa_headname = if_name(ifp);
4901 priv->pfil = pfil_head_register(&pa);
4902
4903 PRIV_LOCK(priv);
4904 err = mlx5e_open_flow_rules(priv);
4905 if (err) {
4906 mlx5_en_err(ifp,
4907 "mlx5e_open_flow_rules() failed, %d (ignored)\n", err);
4908 }
4909 PRIV_UNLOCK(priv);
4910
4911 return (priv);
4912
4913 err_open_flow_tables:
4914 mlx5e_close_flow_tables(priv);
4915
4916 err_open_tirs:
4917 mlx5e_close_tirs(priv);
4918
4919 err_open_rqts:
4920 mlx5e_close_rqts(priv);
4921
4922 err_open_drop_rq:
4923 mlx5e_close_drop_rq(&priv->drop_rq);
4924
4925 err_ipsec_init:
4926 mlx5e_ipsec_cleanup(priv);
4927
4928 err_tls_init:
4929 mlx5e_tls_cleanup(priv);
4930
4931 err_rl_init:
4932 mlx5e_rl_cleanup(priv);
4933
4934 err_create_mkey:
4935 mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
4936
4937 err_dealloc_transport_domain:
4938 mlx5_dealloc_transport_domain(mdev, priv->tdn, 0);
4939
4940 err_dealloc_pd:
4941 mlx5_core_dealloc_pd(mdev, priv->pdn, 0);
4942
4943 err_free_wq:
4944 flush_workqueue(priv->wq);
4945
4946 err_free_sysctl:
4947 sysctl_ctx_free(&priv->sysctl_ctx);
4948 if (priv->sysctl_debug)
4949 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx);
4950 mlx5e_priv_static_destroy(priv, mdev, mdev->priv.eq_table.num_comp_vectors);
4951
4952 err_free_ifp:
4953 if_free(ifp);
4954 free(priv, M_MLX5EN);
4955 return (NULL);
4956 }
4957
4958 static void
mlx5e_destroy_ifp(struct mlx5_core_dev * mdev,void * vpriv)4959 mlx5e_destroy_ifp(struct mlx5_core_dev *mdev, void *vpriv)
4960 {
4961 struct mlx5e_priv *priv = vpriv;
4962 if_t ifp = priv->ifp;
4963
4964 /* don't allow more IOCTLs */
4965 priv->gone = 1;
4966
4967 /* XXX wait a bit to allow IOCTL handlers to complete */
4968 pause("W", hz);
4969
4970 #ifdef RATELIMIT
4971 /*
4972 * Tell the TCP ratelimit code to release the rate-sets attached
4973 * to our ifnet.
4974 */
4975 tcp_rl_release_ifnet(ifp);
4976 /*
4977 * The kernel can still have reference(s) via the m_snd_tag's into
4978 * the ratelimit channels, and these must go away before
4979 * detaching:
4980 */
4981 while (READ_ONCE(priv->rl.stats.tx_active_connections) != 0) {
4982 mlx5_en_err(priv->ifp,
4983 "Waiting for all ratelimit connections to terminate\n");
4984 pause("W", hz);
4985 }
4986 #endif
4987
4988 #ifdef KERN_TLS
4989 /* wait for all TLS tags to get freed */
4990 while (priv->tls.init != 0 &&
4991 uma_zone_get_cur(priv->tls.zone) != 0) {
4992 mlx5_en_err(priv->ifp,
4993 "Waiting for all TLS connections to terminate\n");
4994 pause("W", hz);
4995 }
4996
4997 /* wait for all TLS RX tags to get freed */
4998 while (priv->tls_rx.init != 0 &&
4999 uma_zone_get_cur(priv->tls_rx.zone) != 0) {
5000 mlx5_en_err(priv->ifp,
5001 "Waiting for all TLS RX connections to terminate\n");
5002 pause("W", hz);
5003 }
5004 #endif
5005 /* wait for all unlimited send tags to complete */
5006 mlx5e_priv_wait_for_completion(priv, mdev->priv.eq_table.num_comp_vectors);
5007
5008 /* stop watchdog timer */
5009 callout_drain(&priv->watchdog);
5010
5011 callout_drain(&priv->tstmp_clbr);
5012
5013 if (priv->vlan_attach != NULL)
5014 EVENTHANDLER_DEREGISTER(vlan_config, priv->vlan_attach);
5015 if (priv->vlan_detach != NULL)
5016 EVENTHANDLER_DEREGISTER(vlan_unconfig, priv->vlan_detach);
5017 if (priv->vxlan_start != NULL)
5018 EVENTHANDLER_DEREGISTER(vxlan_start, priv->vxlan_start);
5019 if (priv->vxlan_stop != NULL)
5020 EVENTHANDLER_DEREGISTER(vxlan_stop, priv->vxlan_stop);
5021
5022 /* make sure device gets closed */
5023 PRIV_LOCK(priv);
5024 mlx5e_close_locked(ifp);
5025 mlx5e_close_flow_rules(priv);
5026 PRIV_UNLOCK(priv);
5027
5028 /* deregister pfil */
5029 if (priv->pfil != NULL) {
5030 pfil_head_unregister(priv->pfil);
5031 priv->pfil = NULL;
5032 }
5033
5034 /* unregister device */
5035 ifmedia_removeall(&priv->media);
5036 ether_ifdetach(ifp);
5037
5038 mlx5e_tls_rx_cleanup(priv);
5039 #ifdef IPSEC_OFFLOAD
5040 ipsec_accel_on_ifdown(priv->ifp);
5041 #endif
5042 mlx5e_close_flow_tables(priv);
5043 mlx5e_close_tirs(priv);
5044 mlx5e_close_rqts(priv);
5045 mlx5e_close_drop_rq(&priv->drop_rq);
5046 mlx5e_ipsec_cleanup(priv);
5047 mlx5e_tls_cleanup(priv);
5048 mlx5e_rl_cleanup(priv);
5049
5050 /* destroy all remaining sysctl nodes */
5051 sysctl_ctx_free(&priv->stats.vport.ctx);
5052 sysctl_ctx_free(&priv->stats.pport.ctx);
5053 if (priv->sysctl_debug)
5054 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx);
5055 sysctl_ctx_free(&priv->sysctl_ctx);
5056
5057 mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
5058 mlx5_dealloc_transport_domain(priv->mdev, priv->tdn, 0);
5059 mlx5_core_dealloc_pd(priv->mdev, priv->pdn, 0);
5060 mlx5e_disable_async_events(priv);
5061 flush_workqueue(priv->wq);
5062 mlx5e_priv_static_destroy(priv, mdev, mdev->priv.eq_table.num_comp_vectors);
5063 if_free(ifp);
5064 free(priv, M_MLX5EN);
5065 }
5066
5067 #ifdef DEBUGNET
5068 static void
mlx5_en_debugnet_init(if_t dev,int * nrxr,int * ncl,int * clsize)5069 mlx5_en_debugnet_init(if_t dev, int *nrxr, int *ncl, int *clsize)
5070 {
5071 struct mlx5e_priv *priv = if_getsoftc(dev);
5072
5073 PRIV_LOCK(priv);
5074 *nrxr = priv->params.num_channels;
5075 *ncl = DEBUGNET_MAX_IN_FLIGHT;
5076 *clsize = MLX5E_MAX_RX_BYTES;
5077 PRIV_UNLOCK(priv);
5078 }
5079
5080 static void
mlx5_en_debugnet_event(if_t dev,enum debugnet_ev event)5081 mlx5_en_debugnet_event(if_t dev, enum debugnet_ev event)
5082 {
5083 }
5084
5085 static int
mlx5_en_debugnet_transmit(if_t dev,struct mbuf * m)5086 mlx5_en_debugnet_transmit(if_t dev, struct mbuf *m)
5087 {
5088 struct mlx5e_priv *priv = if_getsoftc(dev);
5089 struct mlx5e_sq *sq;
5090 int err;
5091
5092 if ((if_getdrvflags(dev) & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
5093 IFF_DRV_RUNNING || (priv->media_status_last & IFM_ACTIVE) == 0)
5094 return (ENOENT);
5095
5096 sq = &priv->channel[0].sq[0];
5097
5098 if (sq->running == 0) {
5099 m_freem(m);
5100 return (ENOENT);
5101 }
5102
5103 if (mlx5e_sq_xmit(sq, &m) != 0) {
5104 m_freem(m);
5105 err = ENOBUFS;
5106 } else {
5107 err = 0;
5108 }
5109
5110 mlx5e_tx_notify_hw(sq, true);
5111
5112 return (err);
5113 }
5114
5115 static int
mlx5_en_debugnet_poll(if_t dev,int count)5116 mlx5_en_debugnet_poll(if_t dev, int count)
5117 {
5118 struct mlx5e_priv *priv = if_getsoftc(dev);
5119
5120 if ((if_getdrvflags(dev) & IFF_DRV_RUNNING) == 0 ||
5121 (priv->media_status_last & IFM_ACTIVE) == 0)
5122 return (ENOENT);
5123
5124 mlx5_poll_interrupts(priv->mdev);
5125
5126 return (0);
5127 }
5128 #endif /* DEBUGNET */
5129
5130 static void *
mlx5e_get_ifp(void * vpriv)5131 mlx5e_get_ifp(void *vpriv)
5132 {
5133 struct mlx5e_priv *priv = vpriv;
5134
5135 return (priv->ifp);
5136 }
5137
5138 static struct mlx5_interface mlx5e_interface = {
5139 .add = mlx5e_create_ifp,
5140 .remove = mlx5e_destroy_ifp,
5141 .event = mlx5e_async_event,
5142 .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
5143 .get_dev = mlx5e_get_ifp,
5144 };
5145
5146 void
mlx5e_init(void)5147 mlx5e_init(void)
5148 {
5149 mlx5_register_interface(&mlx5e_interface);
5150 }
5151
5152 void
mlx5e_cleanup(void)5153 mlx5e_cleanup(void)
5154 {
5155 mlx5_unregister_interface(&mlx5e_interface);
5156 }
5157
5158 module_init_order(mlx5e_init, SI_ORDER_SIXTH);
5159 module_exit_order(mlx5e_cleanup, SI_ORDER_SIXTH);
5160
5161 MODULE_DEPEND(mlx5en, ipsec, 1, 1, 1);
5162 MODULE_DEPEND(mlx5en, linuxkpi, 1, 1, 1);
5163 MODULE_DEPEND(mlx5en, mlx5, 1, 1, 1);
5164 MODULE_VERSION(mlx5en, 1);
5165