Commit | Line | Data |
---|---|---|
f00817df IS |
1 | /* |
2 | * drivers/net/ethernet/mellanox/mlxsw/spectrum_dcb.c | |
3 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
4 | * Copyright (c) 2016 Ido Schimmel <idosch@mellanox.com> | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * 3. Neither the names of the copyright holders nor the names of its | |
15 | * contributors may be used to endorse or promote products derived from | |
16 | * this software without specific prior written permission. | |
17 | * | |
18 | * Alternatively, this software may be distributed under the terms of the | |
19 | * GNU General Public License ("GPL") version 2 as published by the Free | |
20 | * Software Foundation. | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
32 | * POSSIBILITY OF SUCH DAMAGE. | |
33 | */ | |
34 | ||
35 | #include <linux/netdevice.h> | |
8e8dfe9f | 36 | #include <linux/string.h> |
d81a6bdb | 37 | #include <linux/bitops.h> |
f00817df IS |
38 | #include <net/dcbnl.h> |
39 | ||
40 | #include "spectrum.h" | |
8e8dfe9f | 41 | #include "reg.h" |
f00817df IS |
42 | |
43 | static u8 mlxsw_sp_dcbnl_getdcbx(struct net_device __always_unused *dev) | |
44 | { | |
45 | return DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; | |
46 | } | |
47 | ||
48 | static u8 mlxsw_sp_dcbnl_setdcbx(struct net_device __always_unused *dev, | |
49 | u8 mode) | |
50 | { | |
51 | return (mode != (DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE)) ? 1 : 0; | |
52 | } | |
53 | ||
8e8dfe9f IS |
54 | static int mlxsw_sp_dcbnl_ieee_getets(struct net_device *dev, |
55 | struct ieee_ets *ets) | |
56 | { | |
57 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
58 | ||
59 | memcpy(ets, mlxsw_sp_port->dcb.ets, sizeof(*ets)); | |
60 | ||
61 | return 0; | |
62 | } | |
63 | ||
64 | static int mlxsw_sp_port_ets_validate(struct mlxsw_sp_port *mlxsw_sp_port, | |
65 | struct ieee_ets *ets) | |
66 | { | |
67 | struct net_device *dev = mlxsw_sp_port->dev; | |
68 | bool has_ets_tc = false; | |
69 | int i, tx_bw_sum = 0; | |
70 | ||
71 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
72 | switch (ets->tc_tsa[i]) { | |
73 | case IEEE_8021QAZ_TSA_STRICT: | |
74 | break; | |
75 | case IEEE_8021QAZ_TSA_ETS: | |
76 | has_ets_tc = true; | |
77 | tx_bw_sum += ets->tc_tx_bw[i]; | |
78 | break; | |
79 | default: | |
80 | netdev_err(dev, "Only strict priority and ETS are supported\n"); | |
81 | return -EINVAL; | |
82 | } | |
83 | ||
84 | if (ets->prio_tc[i] >= IEEE_8021QAZ_MAX_TCS) { | |
85 | netdev_err(dev, "Invalid TC\n"); | |
86 | return -EINVAL; | |
87 | } | |
88 | } | |
89 | ||
90 | if (has_ets_tc && tx_bw_sum != 100) { | |
91 | netdev_err(dev, "Total ETS bandwidth should equal 100\n"); | |
92 | return -EINVAL; | |
93 | } | |
94 | ||
95 | return 0; | |
96 | } | |
97 | ||
98 | static int mlxsw_sp_port_pg_prio_map(struct mlxsw_sp_port *mlxsw_sp_port, | |
99 | u8 *prio_tc) | |
100 | { | |
101 | char pptb_pl[MLXSW_REG_PPTB_LEN]; | |
102 | int i; | |
103 | ||
104 | mlxsw_reg_pptb_pack(pptb_pl, mlxsw_sp_port->local_port); | |
105 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) | |
11719a58 IS |
106 | mlxsw_reg_pptb_prio_to_buff_pack(pptb_pl, i, prio_tc[i]); |
107 | ||
8e8dfe9f IS |
108 | return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pptb), |
109 | pptb_pl); | |
110 | } | |
111 | ||
112 | static bool mlxsw_sp_ets_has_pg(u8 *prio_tc, u8 pg) | |
113 | { | |
114 | int i; | |
115 | ||
116 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) | |
117 | if (prio_tc[i] == pg) | |
118 | return true; | |
119 | return false; | |
120 | } | |
121 | ||
122 | static int mlxsw_sp_port_pg_destroy(struct mlxsw_sp_port *mlxsw_sp_port, | |
123 | u8 *old_prio_tc, u8 *new_prio_tc) | |
124 | { | |
125 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
126 | char pbmc_pl[MLXSW_REG_PBMC_LEN]; | |
127 | int err, i; | |
128 | ||
129 | mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0); | |
130 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); | |
131 | if (err) | |
132 | return err; | |
133 | ||
134 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
135 | u8 pg = old_prio_tc[i]; | |
136 | ||
137 | if (!mlxsw_sp_ets_has_pg(new_prio_tc, pg)) | |
138 | mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg, 0); | |
139 | } | |
140 | ||
141 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); | |
142 | } | |
143 | ||
144 | static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
145 | struct ieee_ets *ets) | |
146 | { | |
9f7ec052 | 147 | bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); |
8e8dfe9f IS |
148 | struct ieee_ets *my_ets = mlxsw_sp_port->dcb.ets; |
149 | struct net_device *dev = mlxsw_sp_port->dev; | |
150 | int err; | |
151 | ||
152 | /* Create the required PGs, but don't destroy existing ones, as | |
153 | * traffic is still directed to them. | |
154 | */ | |
155 | err = __mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, | |
d81a6bdb IS |
156 | ets->prio_tc, pause_en, |
157 | mlxsw_sp_port->dcb.pfc); | |
8e8dfe9f IS |
158 | if (err) { |
159 | netdev_err(dev, "Failed to configure port's headroom\n"); | |
160 | return err; | |
161 | } | |
162 | ||
163 | err = mlxsw_sp_port_pg_prio_map(mlxsw_sp_port, ets->prio_tc); | |
164 | if (err) { | |
165 | netdev_err(dev, "Failed to set PG-priority mapping\n"); | |
166 | goto err_port_prio_pg_map; | |
167 | } | |
168 | ||
169 | err = mlxsw_sp_port_pg_destroy(mlxsw_sp_port, my_ets->prio_tc, | |
170 | ets->prio_tc); | |
171 | if (err) | |
172 | netdev_warn(dev, "Failed to remove ununsed PGs\n"); | |
173 | ||
174 | return 0; | |
175 | ||
176 | err_port_prio_pg_map: | |
177 | mlxsw_sp_port_pg_destroy(mlxsw_sp_port, ets->prio_tc, my_ets->prio_tc); | |
178 | return err; | |
179 | } | |
180 | ||
181 | static int __mlxsw_sp_dcbnl_ieee_setets(struct mlxsw_sp_port *mlxsw_sp_port, | |
182 | struct ieee_ets *ets) | |
183 | { | |
184 | struct ieee_ets *my_ets = mlxsw_sp_port->dcb.ets; | |
185 | struct net_device *dev = mlxsw_sp_port->dev; | |
186 | int i, err; | |
187 | ||
188 | /* Egress configuration. */ | |
189 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
190 | bool dwrr = ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS; | |
191 | u8 weight = ets->tc_tx_bw[i]; | |
192 | ||
193 | err = mlxsw_sp_port_ets_set(mlxsw_sp_port, | |
194 | MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i, | |
195 | 0, dwrr, weight); | |
196 | if (err) { | |
197 | netdev_err(dev, "Failed to link subgroup ETS element %d to group\n", | |
198 | i); | |
199 | goto err_port_ets_set; | |
200 | } | |
201 | } | |
202 | ||
203 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
204 | err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, | |
205 | ets->prio_tc[i]); | |
206 | if (err) { | |
207 | netdev_err(dev, "Failed to map prio %d to TC %d\n", i, | |
208 | ets->prio_tc[i]); | |
209 | goto err_port_prio_tc_set; | |
210 | } | |
211 | } | |
212 | ||
213 | /* Ingress configuration. */ | |
214 | err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, ets); | |
215 | if (err) | |
216 | goto err_port_headroom_set; | |
217 | ||
218 | return 0; | |
219 | ||
220 | err_port_headroom_set: | |
221 | i = IEEE_8021QAZ_MAX_TCS; | |
222 | err_port_prio_tc_set: | |
223 | for (i--; i >= 0; i--) | |
224 | mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, my_ets->prio_tc[i]); | |
225 | i = IEEE_8021QAZ_MAX_TCS; | |
226 | err_port_ets_set: | |
227 | for (i--; i >= 0; i--) { | |
228 | bool dwrr = my_ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS; | |
229 | u8 weight = my_ets->tc_tx_bw[i]; | |
230 | ||
231 | err = mlxsw_sp_port_ets_set(mlxsw_sp_port, | |
232 | MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i, | |
233 | 0, dwrr, weight); | |
234 | } | |
235 | return err; | |
236 | } | |
237 | ||
238 | static int mlxsw_sp_dcbnl_ieee_setets(struct net_device *dev, | |
239 | struct ieee_ets *ets) | |
240 | { | |
241 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
242 | int err; | |
243 | ||
244 | err = mlxsw_sp_port_ets_validate(mlxsw_sp_port, ets); | |
245 | if (err) | |
246 | return err; | |
247 | ||
248 | err = __mlxsw_sp_dcbnl_ieee_setets(mlxsw_sp_port, ets); | |
249 | if (err) | |
250 | return err; | |
251 | ||
252 | memcpy(mlxsw_sp_port->dcb.ets, ets, sizeof(*ets)); | |
28f5275e | 253 | mlxsw_sp_port->dcb.ets->ets_cap = IEEE_8021QAZ_MAX_TCS; |
8e8dfe9f IS |
254 | |
255 | return 0; | |
256 | } | |
257 | ||
cc7cf517 IS |
258 | static int mlxsw_sp_dcbnl_ieee_getmaxrate(struct net_device *dev, |
259 | struct ieee_maxrate *maxrate) | |
260 | { | |
261 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
262 | ||
263 | memcpy(maxrate, mlxsw_sp_port->dcb.maxrate, sizeof(*maxrate)); | |
264 | ||
265 | return 0; | |
266 | } | |
267 | ||
268 | static int mlxsw_sp_dcbnl_ieee_setmaxrate(struct net_device *dev, | |
269 | struct ieee_maxrate *maxrate) | |
270 | { | |
271 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
272 | struct ieee_maxrate *my_maxrate = mlxsw_sp_port->dcb.maxrate; | |
273 | int err, i; | |
274 | ||
275 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
276 | err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, | |
277 | MLXSW_REG_QEEC_HIERARCY_SUBGROUP, | |
278 | i, 0, | |
279 | maxrate->tc_maxrate[i]); | |
280 | if (err) { | |
281 | netdev_err(dev, "Failed to set maxrate for TC %d\n", i); | |
282 | goto err_port_ets_maxrate_set; | |
283 | } | |
284 | } | |
285 | ||
286 | memcpy(mlxsw_sp_port->dcb.maxrate, maxrate, sizeof(*maxrate)); | |
287 | ||
288 | return 0; | |
289 | ||
290 | err_port_ets_maxrate_set: | |
291 | for (i--; i >= 0; i--) | |
292 | mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, | |
293 | MLXSW_REG_QEEC_HIERARCY_SUBGROUP, | |
294 | i, 0, my_maxrate->tc_maxrate[i]); | |
295 | return err; | |
296 | } | |
297 | ||
d81a6bdb IS |
298 | static int mlxsw_sp_port_pfc_cnt_get(struct mlxsw_sp_port *mlxsw_sp_port, |
299 | u8 prio) | |
300 | { | |
301 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
302 | struct ieee_pfc *my_pfc = mlxsw_sp_port->dcb.pfc; | |
303 | char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; | |
304 | int err; | |
305 | ||
306 | mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, | |
307 | MLXSW_REG_PPCNT_PRIO_CNT, prio); | |
308 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); | |
309 | if (err) | |
310 | return err; | |
311 | ||
312 | my_pfc->requests[prio] = mlxsw_reg_ppcnt_tx_pause_get(ppcnt_pl); | |
313 | my_pfc->indications[prio] = mlxsw_reg_ppcnt_rx_pause_get(ppcnt_pl); | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
318 | static int mlxsw_sp_dcbnl_ieee_getpfc(struct net_device *dev, | |
319 | struct ieee_pfc *pfc) | |
320 | { | |
321 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
322 | int err, i; | |
323 | ||
324 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
325 | err = mlxsw_sp_port_pfc_cnt_get(mlxsw_sp_port, i); | |
326 | if (err) { | |
327 | netdev_err(dev, "Failed to get PFC count for priority %d\n", | |
328 | i); | |
329 | return err; | |
330 | } | |
331 | } | |
332 | ||
333 | memcpy(pfc, mlxsw_sp_port->dcb.pfc, sizeof(*pfc)); | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
338 | static int mlxsw_sp_port_pfc_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
339 | struct ieee_pfc *pfc) | |
340 | { | |
341 | char pfcc_pl[MLXSW_REG_PFCC_LEN]; | |
342 | ||
343 | mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port); | |
07d50cae IS |
344 | mlxsw_reg_pfcc_pprx_set(pfcc_pl, mlxsw_sp_port->link.rx_pause); |
345 | mlxsw_reg_pfcc_pptx_set(pfcc_pl, mlxsw_sp_port->link.tx_pause); | |
d81a6bdb IS |
346 | mlxsw_reg_pfcc_prio_pack(pfcc_pl, pfc->pfc_en); |
347 | ||
348 | return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc), | |
349 | pfcc_pl); | |
350 | } | |
351 | ||
352 | static int mlxsw_sp_dcbnl_ieee_setpfc(struct net_device *dev, | |
353 | struct ieee_pfc *pfc) | |
354 | { | |
355 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
b489a200 | 356 | bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); |
d81a6bdb IS |
357 | int err; |
358 | ||
b489a200 | 359 | if (pause_en && pfc->pfc_en) { |
d81a6bdb IS |
360 | netdev_err(dev, "PAUSE frames already enabled on port\n"); |
361 | return -EINVAL; | |
362 | } | |
363 | ||
364 | err = __mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, | |
365 | mlxsw_sp_port->dcb.ets->prio_tc, | |
b489a200 | 366 | pause_en, pfc); |
d81a6bdb IS |
367 | if (err) { |
368 | netdev_err(dev, "Failed to configure port's headroom for PFC\n"); | |
369 | return err; | |
370 | } | |
371 | ||
372 | err = mlxsw_sp_port_pfc_set(mlxsw_sp_port, pfc); | |
373 | if (err) { | |
374 | netdev_err(dev, "Failed to configure PFC\n"); | |
375 | goto err_port_pfc_set; | |
376 | } | |
377 | ||
378 | memcpy(mlxsw_sp_port->dcb.pfc, pfc, sizeof(*pfc)); | |
28f5275e | 379 | mlxsw_sp_port->dcb.pfc->pfc_cap = IEEE_8021QAZ_MAX_TCS; |
d81a6bdb IS |
380 | |
381 | return 0; | |
382 | ||
383 | err_port_pfc_set: | |
384 | __mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, | |
b489a200 | 385 | mlxsw_sp_port->dcb.ets->prio_tc, pause_en, |
d81a6bdb IS |
386 | mlxsw_sp_port->dcb.pfc); |
387 | return err; | |
388 | } | |
389 | ||
f00817df | 390 | static const struct dcbnl_rtnl_ops mlxsw_sp_dcbnl_ops = { |
8e8dfe9f IS |
391 | .ieee_getets = mlxsw_sp_dcbnl_ieee_getets, |
392 | .ieee_setets = mlxsw_sp_dcbnl_ieee_setets, | |
cc7cf517 IS |
393 | .ieee_getmaxrate = mlxsw_sp_dcbnl_ieee_getmaxrate, |
394 | .ieee_setmaxrate = mlxsw_sp_dcbnl_ieee_setmaxrate, | |
d81a6bdb IS |
395 | .ieee_getpfc = mlxsw_sp_dcbnl_ieee_getpfc, |
396 | .ieee_setpfc = mlxsw_sp_dcbnl_ieee_setpfc, | |
8e8dfe9f | 397 | |
f00817df IS |
398 | .getdcbx = mlxsw_sp_dcbnl_getdcbx, |
399 | .setdcbx = mlxsw_sp_dcbnl_setdcbx, | |
400 | }; | |
401 | ||
8e8dfe9f IS |
402 | static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port) |
403 | { | |
404 | mlxsw_sp_port->dcb.ets = kzalloc(sizeof(*mlxsw_sp_port->dcb.ets), | |
405 | GFP_KERNEL); | |
406 | if (!mlxsw_sp_port->dcb.ets) | |
407 | return -ENOMEM; | |
408 | ||
409 | mlxsw_sp_port->dcb.ets->ets_cap = IEEE_8021QAZ_MAX_TCS; | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
414 | static void mlxsw_sp_port_ets_fini(struct mlxsw_sp_port *mlxsw_sp_port) | |
415 | { | |
416 | kfree(mlxsw_sp_port->dcb.ets); | |
417 | } | |
418 | ||
cc7cf517 IS |
419 | static int mlxsw_sp_port_maxrate_init(struct mlxsw_sp_port *mlxsw_sp_port) |
420 | { | |
421 | int i; | |
422 | ||
423 | mlxsw_sp_port->dcb.maxrate = kmalloc(sizeof(*mlxsw_sp_port->dcb.maxrate), | |
424 | GFP_KERNEL); | |
425 | if (!mlxsw_sp_port->dcb.maxrate) | |
426 | return -ENOMEM; | |
427 | ||
428 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) | |
429 | mlxsw_sp_port->dcb.maxrate->tc_maxrate[i] = MLXSW_REG_QEEC_MAS_DIS; | |
430 | ||
431 | return 0; | |
432 | } | |
433 | ||
434 | static void mlxsw_sp_port_maxrate_fini(struct mlxsw_sp_port *mlxsw_sp_port) | |
435 | { | |
436 | kfree(mlxsw_sp_port->dcb.maxrate); | |
437 | } | |
438 | ||
d81a6bdb IS |
439 | static int mlxsw_sp_port_pfc_init(struct mlxsw_sp_port *mlxsw_sp_port) |
440 | { | |
441 | mlxsw_sp_port->dcb.pfc = kzalloc(sizeof(*mlxsw_sp_port->dcb.pfc), | |
442 | GFP_KERNEL); | |
443 | if (!mlxsw_sp_port->dcb.pfc) | |
444 | return -ENOMEM; | |
445 | ||
446 | mlxsw_sp_port->dcb.pfc->pfc_cap = IEEE_8021QAZ_MAX_TCS; | |
447 | ||
448 | return 0; | |
449 | } | |
450 | ||
451 | static void mlxsw_sp_port_pfc_fini(struct mlxsw_sp_port *mlxsw_sp_port) | |
452 | { | |
453 | kfree(mlxsw_sp_port->dcb.pfc); | |
454 | } | |
455 | ||
f00817df IS |
456 | int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port) |
457 | { | |
8e8dfe9f IS |
458 | int err; |
459 | ||
460 | err = mlxsw_sp_port_ets_init(mlxsw_sp_port); | |
461 | if (err) | |
462 | return err; | |
cc7cf517 IS |
463 | err = mlxsw_sp_port_maxrate_init(mlxsw_sp_port); |
464 | if (err) | |
465 | goto err_port_maxrate_init; | |
d81a6bdb IS |
466 | err = mlxsw_sp_port_pfc_init(mlxsw_sp_port); |
467 | if (err) | |
468 | goto err_port_pfc_init; | |
8e8dfe9f | 469 | |
f00817df IS |
470 | mlxsw_sp_port->dev->dcbnl_ops = &mlxsw_sp_dcbnl_ops; |
471 | ||
472 | return 0; | |
cc7cf517 | 473 | |
d81a6bdb IS |
474 | err_port_pfc_init: |
475 | mlxsw_sp_port_maxrate_fini(mlxsw_sp_port); | |
cc7cf517 IS |
476 | err_port_maxrate_init: |
477 | mlxsw_sp_port_ets_fini(mlxsw_sp_port); | |
478 | return err; | |
f00817df IS |
479 | } |
480 | ||
481 | void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port) | |
482 | { | |
d81a6bdb | 483 | mlxsw_sp_port_pfc_fini(mlxsw_sp_port); |
cc7cf517 | 484 | mlxsw_sp_port_maxrate_fini(mlxsw_sp_port); |
8e8dfe9f | 485 | mlxsw_sp_port_ets_fini(mlxsw_sp_port); |
f00817df | 486 | } |