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2f90b865 | 1 | /* |
698e1d23 | 2 | * Copyright (c) 2008-2011, Intel Corporation. |
2f90b865 AD |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
c057b190 | 14 | * this program; if not, see <http://www.gnu.org/licenses/>. |
2f90b865 AD |
15 | * |
16 | * Author: Lucy Liu <lucy.liu@intel.com> | |
17 | */ | |
18 | ||
19 | #include <linux/netdevice.h> | |
20 | #include <linux/netlink.h> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
2f90b865 AD |
22 | #include <net/netlink.h> |
23 | #include <net/rtnetlink.h> | |
24 | #include <linux/dcbnl.h> | |
96b99684 | 25 | #include <net/dcbevent.h> |
2f90b865 | 26 | #include <linux/rtnetlink.h> |
3a9a231d | 27 | #include <linux/module.h> |
2f90b865 AD |
28 | #include <net/sock.h> |
29 | ||
ae86b9e3 | 30 | /* Data Center Bridging (DCB) is a collection of Ethernet enhancements |
2f90b865 AD |
31 | * intended to allow network traffic with differing requirements |
32 | * (highly reliable, no drops vs. best effort vs. low latency) to operate | |
33 | * and co-exist on Ethernet. Current DCB features are: | |
34 | * | |
35 | * Enhanced Transmission Selection (aka Priority Grouping [PG]) - provides a | |
36 | * framework for assigning bandwidth guarantees to traffic classes. | |
37 | * | |
38 | * Priority-based Flow Control (PFC) - provides a flow control mechanism which | |
39 | * can work independently for each 802.1p priority. | |
40 | * | |
41 | * Congestion Notification - provides a mechanism for end-to-end congestion | |
42 | * control for protocols which do not have built-in congestion management. | |
43 | * | |
44 | * More information about the emerging standards for these Ethernet features | |
45 | * can be found at: http://www.ieee802.org/1/pages/dcbridges.html | |
46 | * | |
47 | * This file implements an rtnetlink interface to allow configuration of DCB | |
48 | * features for capable devices. | |
49 | */ | |
50 | ||
51 | MODULE_AUTHOR("Lucy Liu, <lucy.liu@intel.com>"); | |
7a6b6f51 | 52 | MODULE_DESCRIPTION("Data Center Bridging netlink interface"); |
2f90b865 AD |
53 | MODULE_LICENSE("GPL"); |
54 | ||
55 | /**************** DCB attribute policies *************************************/ | |
56 | ||
57 | /* DCB netlink attributes policy */ | |
b54452b0 | 58 | static const struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = { |
859ee3c4 AD |
59 | [DCB_ATTR_IFNAME] = {.type = NLA_NUL_STRING, .len = IFNAMSIZ - 1}, |
60 | [DCB_ATTR_STATE] = {.type = NLA_U8}, | |
61 | [DCB_ATTR_PFC_CFG] = {.type = NLA_NESTED}, | |
62 | [DCB_ATTR_PG_CFG] = {.type = NLA_NESTED}, | |
63 | [DCB_ATTR_SET_ALL] = {.type = NLA_U8}, | |
2f90b865 | 64 | [DCB_ATTR_PERM_HWADDR] = {.type = NLA_FLAG}, |
859ee3c4 AD |
65 | [DCB_ATTR_CAP] = {.type = NLA_NESTED}, |
66 | [DCB_ATTR_PFC_STATE] = {.type = NLA_U8}, | |
67 | [DCB_ATTR_BCN] = {.type = NLA_NESTED}, | |
6fa382af | 68 | [DCB_ATTR_APP] = {.type = NLA_NESTED}, |
3e29027a | 69 | [DCB_ATTR_IEEE] = {.type = NLA_NESTED}, |
6241b625 | 70 | [DCB_ATTR_DCBX] = {.type = NLA_U8}, |
ea45fe4e | 71 | [DCB_ATTR_FEATCFG] = {.type = NLA_NESTED}, |
2f90b865 AD |
72 | }; |
73 | ||
74 | /* DCB priority flow control to User Priority nested attributes */ | |
b54452b0 | 75 | static const struct nla_policy dcbnl_pfc_up_nest[DCB_PFC_UP_ATTR_MAX + 1] = { |
2f90b865 AD |
76 | [DCB_PFC_UP_ATTR_0] = {.type = NLA_U8}, |
77 | [DCB_PFC_UP_ATTR_1] = {.type = NLA_U8}, | |
78 | [DCB_PFC_UP_ATTR_2] = {.type = NLA_U8}, | |
79 | [DCB_PFC_UP_ATTR_3] = {.type = NLA_U8}, | |
80 | [DCB_PFC_UP_ATTR_4] = {.type = NLA_U8}, | |
81 | [DCB_PFC_UP_ATTR_5] = {.type = NLA_U8}, | |
82 | [DCB_PFC_UP_ATTR_6] = {.type = NLA_U8}, | |
83 | [DCB_PFC_UP_ATTR_7] = {.type = NLA_U8}, | |
84 | [DCB_PFC_UP_ATTR_ALL] = {.type = NLA_FLAG}, | |
85 | }; | |
86 | ||
87 | /* DCB priority grouping nested attributes */ | |
b54452b0 | 88 | static const struct nla_policy dcbnl_pg_nest[DCB_PG_ATTR_MAX + 1] = { |
2f90b865 AD |
89 | [DCB_PG_ATTR_TC_0] = {.type = NLA_NESTED}, |
90 | [DCB_PG_ATTR_TC_1] = {.type = NLA_NESTED}, | |
91 | [DCB_PG_ATTR_TC_2] = {.type = NLA_NESTED}, | |
92 | [DCB_PG_ATTR_TC_3] = {.type = NLA_NESTED}, | |
93 | [DCB_PG_ATTR_TC_4] = {.type = NLA_NESTED}, | |
94 | [DCB_PG_ATTR_TC_5] = {.type = NLA_NESTED}, | |
95 | [DCB_PG_ATTR_TC_6] = {.type = NLA_NESTED}, | |
96 | [DCB_PG_ATTR_TC_7] = {.type = NLA_NESTED}, | |
97 | [DCB_PG_ATTR_TC_ALL] = {.type = NLA_NESTED}, | |
98 | [DCB_PG_ATTR_BW_ID_0] = {.type = NLA_U8}, | |
99 | [DCB_PG_ATTR_BW_ID_1] = {.type = NLA_U8}, | |
100 | [DCB_PG_ATTR_BW_ID_2] = {.type = NLA_U8}, | |
101 | [DCB_PG_ATTR_BW_ID_3] = {.type = NLA_U8}, | |
102 | [DCB_PG_ATTR_BW_ID_4] = {.type = NLA_U8}, | |
103 | [DCB_PG_ATTR_BW_ID_5] = {.type = NLA_U8}, | |
104 | [DCB_PG_ATTR_BW_ID_6] = {.type = NLA_U8}, | |
105 | [DCB_PG_ATTR_BW_ID_7] = {.type = NLA_U8}, | |
106 | [DCB_PG_ATTR_BW_ID_ALL] = {.type = NLA_FLAG}, | |
107 | }; | |
108 | ||
109 | /* DCB traffic class nested attributes. */ | |
b54452b0 | 110 | static const struct nla_policy dcbnl_tc_param_nest[DCB_TC_ATTR_PARAM_MAX + 1] = { |
2f90b865 AD |
111 | [DCB_TC_ATTR_PARAM_PGID] = {.type = NLA_U8}, |
112 | [DCB_TC_ATTR_PARAM_UP_MAPPING] = {.type = NLA_U8}, | |
113 | [DCB_TC_ATTR_PARAM_STRICT_PRIO] = {.type = NLA_U8}, | |
114 | [DCB_TC_ATTR_PARAM_BW_PCT] = {.type = NLA_U8}, | |
115 | [DCB_TC_ATTR_PARAM_ALL] = {.type = NLA_FLAG}, | |
116 | }; | |
117 | ||
46132188 | 118 | /* DCB capabilities nested attributes. */ |
b54452b0 | 119 | static const struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = { |
46132188 AD |
120 | [DCB_CAP_ATTR_ALL] = {.type = NLA_FLAG}, |
121 | [DCB_CAP_ATTR_PG] = {.type = NLA_U8}, | |
122 | [DCB_CAP_ATTR_PFC] = {.type = NLA_U8}, | |
123 | [DCB_CAP_ATTR_UP2TC] = {.type = NLA_U8}, | |
124 | [DCB_CAP_ATTR_PG_TCS] = {.type = NLA_U8}, | |
125 | [DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8}, | |
126 | [DCB_CAP_ATTR_GSP] = {.type = NLA_U8}, | |
127 | [DCB_CAP_ATTR_BCN] = {.type = NLA_U8}, | |
6241b625 | 128 | [DCB_CAP_ATTR_DCBX] = {.type = NLA_U8}, |
46132188 | 129 | }; |
2f90b865 | 130 | |
33dbabc4 | 131 | /* DCB capabilities nested attributes. */ |
b54452b0 | 132 | static const struct nla_policy dcbnl_numtcs_nest[DCB_NUMTCS_ATTR_MAX + 1] = { |
33dbabc4 AD |
133 | [DCB_NUMTCS_ATTR_ALL] = {.type = NLA_FLAG}, |
134 | [DCB_NUMTCS_ATTR_PG] = {.type = NLA_U8}, | |
135 | [DCB_NUMTCS_ATTR_PFC] = {.type = NLA_U8}, | |
136 | }; | |
137 | ||
859ee3c4 | 138 | /* DCB BCN nested attributes. */ |
b54452b0 | 139 | static const struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = { |
859ee3c4 AD |
140 | [DCB_BCN_ATTR_RP_0] = {.type = NLA_U8}, |
141 | [DCB_BCN_ATTR_RP_1] = {.type = NLA_U8}, | |
142 | [DCB_BCN_ATTR_RP_2] = {.type = NLA_U8}, | |
143 | [DCB_BCN_ATTR_RP_3] = {.type = NLA_U8}, | |
144 | [DCB_BCN_ATTR_RP_4] = {.type = NLA_U8}, | |
145 | [DCB_BCN_ATTR_RP_5] = {.type = NLA_U8}, | |
146 | [DCB_BCN_ATTR_RP_6] = {.type = NLA_U8}, | |
147 | [DCB_BCN_ATTR_RP_7] = {.type = NLA_U8}, | |
148 | [DCB_BCN_ATTR_RP_ALL] = {.type = NLA_FLAG}, | |
f4314e81 DS |
149 | [DCB_BCN_ATTR_BCNA_0] = {.type = NLA_U32}, |
150 | [DCB_BCN_ATTR_BCNA_1] = {.type = NLA_U32}, | |
859ee3c4 AD |
151 | [DCB_BCN_ATTR_ALPHA] = {.type = NLA_U32}, |
152 | [DCB_BCN_ATTR_BETA] = {.type = NLA_U32}, | |
153 | [DCB_BCN_ATTR_GD] = {.type = NLA_U32}, | |
154 | [DCB_BCN_ATTR_GI] = {.type = NLA_U32}, | |
155 | [DCB_BCN_ATTR_TMAX] = {.type = NLA_U32}, | |
156 | [DCB_BCN_ATTR_TD] = {.type = NLA_U32}, | |
157 | [DCB_BCN_ATTR_RMIN] = {.type = NLA_U32}, | |
158 | [DCB_BCN_ATTR_W] = {.type = NLA_U32}, | |
159 | [DCB_BCN_ATTR_RD] = {.type = NLA_U32}, | |
160 | [DCB_BCN_ATTR_RU] = {.type = NLA_U32}, | |
161 | [DCB_BCN_ATTR_WRTT] = {.type = NLA_U32}, | |
162 | [DCB_BCN_ATTR_RI] = {.type = NLA_U32}, | |
163 | [DCB_BCN_ATTR_C] = {.type = NLA_U32}, | |
164 | [DCB_BCN_ATTR_ALL] = {.type = NLA_FLAG}, | |
165 | }; | |
166 | ||
6fa382af | 167 | /* DCB APP nested attributes. */ |
b54452b0 | 168 | static const struct nla_policy dcbnl_app_nest[DCB_APP_ATTR_MAX + 1] = { |
6fa382af YZ |
169 | [DCB_APP_ATTR_IDTYPE] = {.type = NLA_U8}, |
170 | [DCB_APP_ATTR_ID] = {.type = NLA_U16}, | |
171 | [DCB_APP_ATTR_PRIORITY] = {.type = NLA_U8}, | |
172 | }; | |
173 | ||
3e29027a JF |
174 | /* IEEE 802.1Qaz nested attributes. */ |
175 | static const struct nla_policy dcbnl_ieee_policy[DCB_ATTR_IEEE_MAX + 1] = { | |
176 | [DCB_ATTR_IEEE_ETS] = {.len = sizeof(struct ieee_ets)}, | |
177 | [DCB_ATTR_IEEE_PFC] = {.len = sizeof(struct ieee_pfc)}, | |
178 | [DCB_ATTR_IEEE_APP_TABLE] = {.type = NLA_NESTED}, | |
08f10aff | 179 | [DCB_ATTR_IEEE_MAXRATE] = {.len = sizeof(struct ieee_maxrate)}, |
3e29027a JF |
180 | }; |
181 | ||
182 | static const struct nla_policy dcbnl_ieee_app[DCB_ATTR_IEEE_APP_MAX + 1] = { | |
183 | [DCB_ATTR_IEEE_APP] = {.len = sizeof(struct dcb_app)}, | |
184 | }; | |
185 | ||
ea45fe4e SR |
186 | /* DCB number of traffic classes nested attributes. */ |
187 | static const struct nla_policy dcbnl_featcfg_nest[DCB_FEATCFG_ATTR_MAX + 1] = { | |
188 | [DCB_FEATCFG_ATTR_ALL] = {.type = NLA_FLAG}, | |
189 | [DCB_FEATCFG_ATTR_PG] = {.type = NLA_U8}, | |
190 | [DCB_FEATCFG_ATTR_PFC] = {.type = NLA_U8}, | |
191 | [DCB_FEATCFG_ATTR_APP] = {.type = NLA_U8}, | |
192 | }; | |
193 | ||
9ab933ab JF |
194 | static LIST_HEAD(dcb_app_list); |
195 | static DEFINE_SPINLOCK(dcb_lock); | |
196 | ||
33a03aad TG |
197 | static struct sk_buff *dcbnl_newmsg(int type, u8 cmd, u32 port, u32 seq, |
198 | u32 flags, struct nlmsghdr **nlhp) | |
199 | { | |
200 | struct sk_buff *skb; | |
201 | struct dcbmsg *dcb; | |
202 | struct nlmsghdr *nlh; | |
203 | ||
204 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
205 | if (!skb) | |
206 | return NULL; | |
207 | ||
208 | nlh = nlmsg_put(skb, port, seq, type, sizeof(*dcb), flags); | |
b3908e22 | 209 | BUG_ON(!nlh); |
33a03aad TG |
210 | |
211 | dcb = nlmsg_data(nlh); | |
212 | dcb->dcb_family = AF_UNSPEC; | |
213 | dcb->cmd = cmd; | |
214 | dcb->dcb_pad = 0; | |
215 | ||
216 | if (nlhp) | |
217 | *nlhp = nlh; | |
218 | ||
219 | return skb; | |
220 | } | |
221 | ||
7be99413 TG |
222 | static int dcbnl_getstate(struct net_device *netdev, struct nlmsghdr *nlh, |
223 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 224 | { |
2f90b865 AD |
225 | /* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */ |
226 | if (!netdev->dcbnl_ops->getstate) | |
3d1f4869 | 227 | return -EOPNOTSUPP; |
2f90b865 | 228 | |
7be99413 TG |
229 | return nla_put_u8(skb, DCB_ATTR_STATE, |
230 | netdev->dcbnl_ops->getstate(netdev)); | |
2f90b865 AD |
231 | } |
232 | ||
7be99413 TG |
233 | static int dcbnl_getpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
234 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 235 | { |
2f90b865 AD |
236 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1], *nest; |
237 | u8 value; | |
3d1f4869 | 238 | int ret; |
2f90b865 AD |
239 | int i; |
240 | int getall = 0; | |
241 | ||
3d1f4869 TG |
242 | if (!tb[DCB_ATTR_PFC_CFG]) |
243 | return -EINVAL; | |
244 | ||
245 | if (!netdev->dcbnl_ops->getpfccfg) | |
246 | return -EOPNOTSUPP; | |
2f90b865 AD |
247 | |
248 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
249 | tb[DCB_ATTR_PFC_CFG], | |
250 | dcbnl_pfc_up_nest); | |
251 | if (ret) | |
3d1f4869 | 252 | return ret; |
2f90b865 | 253 | |
7be99413 | 254 | nest = nla_nest_start(skb, DCB_ATTR_PFC_CFG); |
2f90b865 | 255 | if (!nest) |
3d1f4869 | 256 | return -EMSGSIZE; |
2f90b865 AD |
257 | |
258 | if (data[DCB_PFC_UP_ATTR_ALL]) | |
259 | getall = 1; | |
260 | ||
261 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
262 | if (!getall && !data[i]) | |
263 | continue; | |
264 | ||
265 | netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, | |
266 | &value); | |
7be99413 | 267 | ret = nla_put_u8(skb, i, value); |
2f90b865 | 268 | if (ret) { |
7be99413 | 269 | nla_nest_cancel(skb, nest); |
3d1f4869 | 270 | return ret; |
2f90b865 AD |
271 | } |
272 | } | |
7be99413 | 273 | nla_nest_end(skb, nest); |
2f90b865 AD |
274 | |
275 | return 0; | |
2f90b865 AD |
276 | } |
277 | ||
7be99413 TG |
278 | static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlmsghdr *nlh, |
279 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 280 | { |
2f90b865 | 281 | u8 perm_addr[MAX_ADDR_LEN]; |
2f90b865 AD |
282 | |
283 | if (!netdev->dcbnl_ops->getpermhwaddr) | |
3d1f4869 | 284 | return -EOPNOTSUPP; |
2f90b865 | 285 | |
29cd8ae0 | 286 | memset(perm_addr, 0, sizeof(perm_addr)); |
2f90b865 AD |
287 | netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr); |
288 | ||
7be99413 | 289 | return nla_put(skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr), perm_addr); |
2f90b865 AD |
290 | } |
291 | ||
7be99413 TG |
292 | static int dcbnl_getcap(struct net_device *netdev, struct nlmsghdr *nlh, |
293 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
46132188 | 294 | { |
46132188 AD |
295 | struct nlattr *data[DCB_CAP_ATTR_MAX + 1], *nest; |
296 | u8 value; | |
3d1f4869 | 297 | int ret; |
46132188 AD |
298 | int i; |
299 | int getall = 0; | |
300 | ||
3d1f4869 TG |
301 | if (!tb[DCB_ATTR_CAP]) |
302 | return -EINVAL; | |
303 | ||
304 | if (!netdev->dcbnl_ops->getcap) | |
305 | return -EOPNOTSUPP; | |
46132188 AD |
306 | |
307 | ret = nla_parse_nested(data, DCB_CAP_ATTR_MAX, tb[DCB_ATTR_CAP], | |
308 | dcbnl_cap_nest); | |
309 | if (ret) | |
3d1f4869 | 310 | return ret; |
46132188 | 311 | |
7be99413 | 312 | nest = nla_nest_start(skb, DCB_ATTR_CAP); |
46132188 | 313 | if (!nest) |
3d1f4869 | 314 | return -EMSGSIZE; |
46132188 AD |
315 | |
316 | if (data[DCB_CAP_ATTR_ALL]) | |
317 | getall = 1; | |
318 | ||
319 | for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) { | |
320 | if (!getall && !data[i]) | |
321 | continue; | |
322 | ||
323 | if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) { | |
7be99413 | 324 | ret = nla_put_u8(skb, i, value); |
46132188 | 325 | if (ret) { |
7be99413 | 326 | nla_nest_cancel(skb, nest); |
3d1f4869 | 327 | return ret; |
46132188 AD |
328 | } |
329 | } | |
330 | } | |
7be99413 | 331 | nla_nest_end(skb, nest); |
46132188 AD |
332 | |
333 | return 0; | |
46132188 AD |
334 | } |
335 | ||
7be99413 TG |
336 | static int dcbnl_getnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
337 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 | 338 | { |
33dbabc4 AD |
339 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1], *nest; |
340 | u8 value; | |
3d1f4869 | 341 | int ret; |
33dbabc4 AD |
342 | int i; |
343 | int getall = 0; | |
344 | ||
3d1f4869 TG |
345 | if (!tb[DCB_ATTR_NUMTCS]) |
346 | return -EINVAL; | |
347 | ||
348 | if (!netdev->dcbnl_ops->getnumtcs) | |
349 | return -EOPNOTSUPP; | |
33dbabc4 AD |
350 | |
351 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
352 | dcbnl_numtcs_nest); | |
3d1f4869 TG |
353 | if (ret) |
354 | return ret; | |
33dbabc4 | 355 | |
7be99413 | 356 | nest = nla_nest_start(skb, DCB_ATTR_NUMTCS); |
3d1f4869 TG |
357 | if (!nest) |
358 | return -EMSGSIZE; | |
33dbabc4 AD |
359 | |
360 | if (data[DCB_NUMTCS_ATTR_ALL]) | |
361 | getall = 1; | |
362 | ||
363 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
364 | if (!getall && !data[i]) | |
365 | continue; | |
366 | ||
367 | ret = netdev->dcbnl_ops->getnumtcs(netdev, i, &value); | |
368 | if (!ret) { | |
7be99413 | 369 | ret = nla_put_u8(skb, i, value); |
33dbabc4 | 370 | if (ret) { |
7be99413 | 371 | nla_nest_cancel(skb, nest); |
3d1f4869 | 372 | return ret; |
33dbabc4 | 373 | } |
3d1f4869 TG |
374 | } else |
375 | return -EINVAL; | |
33dbabc4 | 376 | } |
7be99413 | 377 | nla_nest_end(skb, nest); |
33dbabc4 AD |
378 | |
379 | return 0; | |
33dbabc4 AD |
380 | } |
381 | ||
7be99413 TG |
382 | static int dcbnl_setnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
383 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 AD |
384 | { |
385 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1]; | |
3d1f4869 | 386 | int ret; |
33dbabc4 AD |
387 | u8 value; |
388 | int i; | |
389 | ||
3d1f4869 TG |
390 | if (!tb[DCB_ATTR_NUMTCS]) |
391 | return -EINVAL; | |
392 | ||
393 | if (!netdev->dcbnl_ops->setnumtcs) | |
394 | return -EOPNOTSUPP; | |
33dbabc4 AD |
395 | |
396 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
397 | dcbnl_numtcs_nest); | |
7be99413 | 398 | if (ret) |
3d1f4869 | 399 | return ret; |
33dbabc4 AD |
400 | |
401 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
402 | if (data[i] == NULL) | |
403 | continue; | |
404 | ||
405 | value = nla_get_u8(data[i]); | |
406 | ||
407 | ret = netdev->dcbnl_ops->setnumtcs(netdev, i, value); | |
33dbabc4 | 408 | if (ret) |
7be99413 | 409 | break; |
33dbabc4 AD |
410 | } |
411 | ||
7be99413 | 412 | return nla_put_u8(skb, DCB_ATTR_NUMTCS, !!ret); |
33dbabc4 AD |
413 | } |
414 | ||
7be99413 TG |
415 | static int dcbnl_getpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
416 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 417 | { |
0eb3aa9b | 418 | if (!netdev->dcbnl_ops->getpfcstate) |
3d1f4869 | 419 | return -EOPNOTSUPP; |
0eb3aa9b | 420 | |
7be99413 TG |
421 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, |
422 | netdev->dcbnl_ops->getpfcstate(netdev)); | |
0eb3aa9b AD |
423 | } |
424 | ||
7be99413 TG |
425 | static int dcbnl_setpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
426 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 427 | { |
0eb3aa9b AD |
428 | u8 value; |
429 | ||
3d1f4869 | 430 | if (!tb[DCB_ATTR_PFC_STATE]) |
7be99413 | 431 | return -EINVAL; |
0eb3aa9b | 432 | |
3d1f4869 TG |
433 | if (!netdev->dcbnl_ops->setpfcstate) |
434 | return -EOPNOTSUPP; | |
435 | ||
0eb3aa9b AD |
436 | value = nla_get_u8(tb[DCB_ATTR_PFC_STATE]); |
437 | ||
438 | netdev->dcbnl_ops->setpfcstate(netdev, value); | |
439 | ||
7be99413 | 440 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, 0); |
0eb3aa9b AD |
441 | } |
442 | ||
7be99413 TG |
443 | static int dcbnl_getapp(struct net_device *netdev, struct nlmsghdr *nlh, |
444 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 445 | { |
57949686 YZ |
446 | struct nlattr *app_nest; |
447 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
448 | u16 id; | |
449 | u8 up, idtype; | |
3d1f4869 | 450 | int ret; |
57949686 | 451 | |
3dce38a0 | 452 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 453 | return -EINVAL; |
57949686 YZ |
454 | |
455 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
456 | dcbnl_app_nest); | |
457 | if (ret) | |
3d1f4869 | 458 | return ret; |
57949686 | 459 | |
57949686 YZ |
460 | /* all must be non-null */ |
461 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
462 | (!app_tb[DCB_APP_ATTR_ID])) | |
3d1f4869 | 463 | return -EINVAL; |
57949686 YZ |
464 | |
465 | /* either by eth type or by socket number */ | |
466 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
467 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
468 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 469 | return -EINVAL; |
57949686 YZ |
470 | |
471 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
3dce38a0 JF |
472 | |
473 | if (netdev->dcbnl_ops->getapp) { | |
474 | up = netdev->dcbnl_ops->getapp(netdev, idtype, id); | |
475 | } else { | |
476 | struct dcb_app app = { | |
477 | .selector = idtype, | |
478 | .protocol = id, | |
479 | }; | |
480 | up = dcb_getapp(netdev, &app); | |
481 | } | |
57949686 | 482 | |
7be99413 | 483 | app_nest = nla_nest_start(skb, DCB_ATTR_APP); |
d3337de5 | 484 | if (!app_nest) |
3d1f4869 | 485 | return -EMSGSIZE; |
d3337de5 | 486 | |
7be99413 | 487 | ret = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, idtype); |
57949686 YZ |
488 | if (ret) |
489 | goto out_cancel; | |
490 | ||
7be99413 | 491 | ret = nla_put_u16(skb, DCB_APP_ATTR_ID, id); |
57949686 YZ |
492 | if (ret) |
493 | goto out_cancel; | |
494 | ||
7be99413 | 495 | ret = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, up); |
57949686 YZ |
496 | if (ret) |
497 | goto out_cancel; | |
498 | ||
7be99413 | 499 | nla_nest_end(skb, app_nest); |
57949686 | 500 | |
3d1f4869 | 501 | return 0; |
57949686 YZ |
502 | |
503 | out_cancel: | |
7be99413 | 504 | nla_nest_cancel(skb, app_nest); |
57949686 YZ |
505 | return ret; |
506 | } | |
507 | ||
7be99413 TG |
508 | static int dcbnl_setapp(struct net_device *netdev, struct nlmsghdr *nlh, |
509 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 510 | { |
3d1f4869 | 511 | int ret; |
57949686 YZ |
512 | u16 id; |
513 | u8 up, idtype; | |
514 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
515 | ||
9ab933ab | 516 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 517 | return -EINVAL; |
57949686 YZ |
518 | |
519 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
520 | dcbnl_app_nest); | |
521 | if (ret) | |
3d1f4869 | 522 | return ret; |
57949686 | 523 | |
57949686 YZ |
524 | /* all must be non-null */ |
525 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
526 | (!app_tb[DCB_APP_ATTR_ID]) || | |
527 | (!app_tb[DCB_APP_ATTR_PRIORITY])) | |
3d1f4869 | 528 | return -EINVAL; |
57949686 YZ |
529 | |
530 | /* either by eth type or by socket number */ | |
531 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
532 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
533 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 534 | return -EINVAL; |
57949686 YZ |
535 | |
536 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
537 | up = nla_get_u8(app_tb[DCB_APP_ATTR_PRIORITY]); | |
538 | ||
9ab933ab | 539 | if (netdev->dcbnl_ops->setapp) { |
3d1f4869 | 540 | ret = netdev->dcbnl_ops->setapp(netdev, idtype, id, up); |
9ab933ab JF |
541 | } else { |
542 | struct dcb_app app; | |
543 | app.selector = idtype; | |
544 | app.protocol = id; | |
545 | app.priority = up; | |
3d1f4869 | 546 | ret = dcb_setapp(netdev, &app); |
9ab933ab JF |
547 | } |
548 | ||
7be99413 | 549 | ret = nla_put_u8(skb, DCB_ATTR_APP, ret); |
08157984 | 550 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SAPP, seq, 0); |
3d1f4869 | 551 | |
57949686 YZ |
552 | return ret; |
553 | } | |
554 | ||
7be99413 TG |
555 | static int __dcbnl_pg_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
556 | struct nlattr **tb, struct sk_buff *skb, int dir) | |
2f90b865 | 557 | { |
2f90b865 AD |
558 | struct nlattr *pg_nest, *param_nest, *data; |
559 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
560 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
561 | u8 prio, pgid, tc_pct, up_map; | |
3d1f4869 | 562 | int ret; |
2f90b865 AD |
563 | int getall = 0; |
564 | int i; | |
565 | ||
3d1f4869 TG |
566 | if (!tb[DCB_ATTR_PG_CFG]) |
567 | return -EINVAL; | |
568 | ||
569 | if (!netdev->dcbnl_ops->getpgtccfgtx || | |
2f90b865 AD |
570 | !netdev->dcbnl_ops->getpgtccfgrx || |
571 | !netdev->dcbnl_ops->getpgbwgcfgtx || | |
572 | !netdev->dcbnl_ops->getpgbwgcfgrx) | |
3d1f4869 | 573 | return -EOPNOTSUPP; |
2f90b865 AD |
574 | |
575 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, | |
576 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest); | |
2f90b865 | 577 | if (ret) |
3d1f4869 | 578 | return ret; |
2f90b865 | 579 | |
7be99413 | 580 | pg_nest = nla_nest_start(skb, DCB_ATTR_PG_CFG); |
2f90b865 | 581 | if (!pg_nest) |
3d1f4869 | 582 | return -EMSGSIZE; |
2f90b865 AD |
583 | |
584 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
585 | getall = 1; | |
586 | ||
587 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
588 | if (!getall && !pg_tb[i]) | |
589 | continue; | |
590 | ||
591 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
592 | data = pg_tb[DCB_PG_ATTR_TC_ALL]; | |
593 | else | |
594 | data = pg_tb[i]; | |
595 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
596 | data, dcbnl_tc_param_nest); | |
597 | if (ret) | |
598 | goto err_pg; | |
599 | ||
7be99413 | 600 | param_nest = nla_nest_start(skb, i); |
2f90b865 AD |
601 | if (!param_nest) |
602 | goto err_pg; | |
603 | ||
604 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
605 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
606 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
607 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
608 | ||
609 | if (dir) { | |
610 | /* Rx */ | |
611 | netdev->dcbnl_ops->getpgtccfgrx(netdev, | |
612 | i - DCB_PG_ATTR_TC_0, &prio, | |
613 | &pgid, &tc_pct, &up_map); | |
614 | } else { | |
615 | /* Tx */ | |
616 | netdev->dcbnl_ops->getpgtccfgtx(netdev, | |
617 | i - DCB_PG_ATTR_TC_0, &prio, | |
618 | &pgid, &tc_pct, &up_map); | |
619 | } | |
620 | ||
621 | if (param_tb[DCB_TC_ATTR_PARAM_PGID] || | |
622 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 623 | ret = nla_put_u8(skb, |
2f90b865 AD |
624 | DCB_TC_ATTR_PARAM_PGID, pgid); |
625 | if (ret) | |
626 | goto err_param; | |
627 | } | |
628 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING] || | |
629 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 630 | ret = nla_put_u8(skb, |
2f90b865 AD |
631 | DCB_TC_ATTR_PARAM_UP_MAPPING, up_map); |
632 | if (ret) | |
633 | goto err_param; | |
634 | } | |
635 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO] || | |
636 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 637 | ret = nla_put_u8(skb, |
2f90b865 AD |
638 | DCB_TC_ATTR_PARAM_STRICT_PRIO, prio); |
639 | if (ret) | |
640 | goto err_param; | |
641 | } | |
642 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT] || | |
643 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 644 | ret = nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, |
2f90b865 AD |
645 | tc_pct); |
646 | if (ret) | |
647 | goto err_param; | |
648 | } | |
7be99413 | 649 | nla_nest_end(skb, param_nest); |
2f90b865 AD |
650 | } |
651 | ||
652 | if (pg_tb[DCB_PG_ATTR_BW_ID_ALL]) | |
653 | getall = 1; | |
654 | else | |
655 | getall = 0; | |
656 | ||
657 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
658 | if (!getall && !pg_tb[i]) | |
659 | continue; | |
660 | ||
661 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
662 | ||
663 | if (dir) { | |
664 | /* Rx */ | |
665 | netdev->dcbnl_ops->getpgbwgcfgrx(netdev, | |
666 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
667 | } else { | |
668 | /* Tx */ | |
669 | netdev->dcbnl_ops->getpgbwgcfgtx(netdev, | |
670 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
671 | } | |
7be99413 | 672 | ret = nla_put_u8(skb, i, tc_pct); |
2f90b865 AD |
673 | if (ret) |
674 | goto err_pg; | |
675 | } | |
676 | ||
7be99413 | 677 | nla_nest_end(skb, pg_nest); |
2f90b865 AD |
678 | |
679 | return 0; | |
680 | ||
681 | err_param: | |
7be99413 | 682 | nla_nest_cancel(skb, param_nest); |
2f90b865 | 683 | err_pg: |
7be99413 | 684 | nla_nest_cancel(skb, pg_nest); |
3d1f4869 TG |
685 | |
686 | return -EMSGSIZE; | |
2f90b865 AD |
687 | } |
688 | ||
7be99413 TG |
689 | static int dcbnl_pgtx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
690 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 691 | { |
7be99413 | 692 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 0); |
2f90b865 AD |
693 | } |
694 | ||
7be99413 TG |
695 | static int dcbnl_pgrx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
696 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 697 | { |
7be99413 | 698 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 1); |
2f90b865 AD |
699 | } |
700 | ||
7be99413 TG |
701 | static int dcbnl_setstate(struct net_device *netdev, struct nlmsghdr *nlh, |
702 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 703 | { |
2f90b865 AD |
704 | u8 value; |
705 | ||
3d1f4869 | 706 | if (!tb[DCB_ATTR_STATE]) |
7be99413 | 707 | return -EINVAL; |
2f90b865 | 708 | |
3d1f4869 TG |
709 | if (!netdev->dcbnl_ops->setstate) |
710 | return -EOPNOTSUPP; | |
711 | ||
2f90b865 AD |
712 | value = nla_get_u8(tb[DCB_ATTR_STATE]); |
713 | ||
7be99413 TG |
714 | return nla_put_u8(skb, DCB_ATTR_STATE, |
715 | netdev->dcbnl_ops->setstate(netdev, value)); | |
2f90b865 AD |
716 | } |
717 | ||
7be99413 TG |
718 | static int dcbnl_setpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
719 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 AD |
720 | { |
721 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1]; | |
722 | int i; | |
3d1f4869 | 723 | int ret; |
2f90b865 AD |
724 | u8 value; |
725 | ||
3d1f4869 TG |
726 | if (!tb[DCB_ATTR_PFC_CFG]) |
727 | return -EINVAL; | |
728 | ||
729 | if (!netdev->dcbnl_ops->setpfccfg) | |
730 | return -EOPNOTSUPP; | |
2f90b865 AD |
731 | |
732 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
733 | tb[DCB_ATTR_PFC_CFG], | |
734 | dcbnl_pfc_up_nest); | |
735 | if (ret) | |
3d1f4869 | 736 | return ret; |
2f90b865 AD |
737 | |
738 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
739 | if (data[i] == NULL) | |
740 | continue; | |
741 | value = nla_get_u8(data[i]); | |
742 | netdev->dcbnl_ops->setpfccfg(netdev, | |
743 | data[i]->nla_type - DCB_PFC_UP_ATTR_0, value); | |
744 | } | |
745 | ||
7be99413 | 746 | return nla_put_u8(skb, DCB_ATTR_PFC_CFG, 0); |
2f90b865 AD |
747 | } |
748 | ||
7be99413 TG |
749 | static int dcbnl_setall(struct net_device *netdev, struct nlmsghdr *nlh, |
750 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 751 | { |
3d1f4869 | 752 | int ret; |
2f90b865 | 753 | |
3d1f4869 TG |
754 | if (!tb[DCB_ATTR_SET_ALL]) |
755 | return -EINVAL; | |
756 | ||
757 | if (!netdev->dcbnl_ops->setall) | |
758 | return -EOPNOTSUPP; | |
2f90b865 | 759 | |
7be99413 TG |
760 | ret = nla_put_u8(skb, DCB_ATTR_SET_ALL, |
761 | netdev->dcbnl_ops->setall(netdev)); | |
08157984 | 762 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SET_ALL, seq, 0); |
2f90b865 AD |
763 | |
764 | return ret; | |
765 | } | |
766 | ||
7be99413 TG |
767 | static int __dcbnl_pg_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
768 | u32 seq, struct nlattr **tb, struct sk_buff *skb, | |
769 | int dir) | |
2f90b865 AD |
770 | { |
771 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
772 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
3d1f4869 | 773 | int ret; |
2f90b865 AD |
774 | int i; |
775 | u8 pgid; | |
776 | u8 up_map; | |
777 | u8 prio; | |
778 | u8 tc_pct; | |
779 | ||
3d1f4869 TG |
780 | if (!tb[DCB_ATTR_PG_CFG]) |
781 | return -EINVAL; | |
782 | ||
783 | if (!netdev->dcbnl_ops->setpgtccfgtx || | |
2f90b865 AD |
784 | !netdev->dcbnl_ops->setpgtccfgrx || |
785 | !netdev->dcbnl_ops->setpgbwgcfgtx || | |
786 | !netdev->dcbnl_ops->setpgbwgcfgrx) | |
3d1f4869 | 787 | return -EOPNOTSUPP; |
2f90b865 AD |
788 | |
789 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, | |
790 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest); | |
791 | if (ret) | |
3d1f4869 | 792 | return ret; |
2f90b865 AD |
793 | |
794 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
795 | if (!pg_tb[i]) | |
796 | continue; | |
797 | ||
798 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
799 | pg_tb[i], dcbnl_tc_param_nest); | |
800 | if (ret) | |
3d1f4869 | 801 | return ret; |
2f90b865 AD |
802 | |
803 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
804 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
805 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
806 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
807 | ||
808 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]) | |
809 | prio = | |
810 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]); | |
811 | ||
812 | if (param_tb[DCB_TC_ATTR_PARAM_PGID]) | |
813 | pgid = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_PGID]); | |
814 | ||
815 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT]) | |
816 | tc_pct = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_BW_PCT]); | |
817 | ||
818 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]) | |
819 | up_map = | |
820 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]); | |
821 | ||
822 | /* dir: Tx = 0, Rx = 1 */ | |
823 | if (dir) { | |
824 | /* Rx */ | |
825 | netdev->dcbnl_ops->setpgtccfgrx(netdev, | |
826 | i - DCB_PG_ATTR_TC_0, | |
827 | prio, pgid, tc_pct, up_map); | |
828 | } else { | |
829 | /* Tx */ | |
830 | netdev->dcbnl_ops->setpgtccfgtx(netdev, | |
831 | i - DCB_PG_ATTR_TC_0, | |
832 | prio, pgid, tc_pct, up_map); | |
833 | } | |
834 | } | |
835 | ||
836 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
837 | if (!pg_tb[i]) | |
838 | continue; | |
839 | ||
840 | tc_pct = nla_get_u8(pg_tb[i]); | |
841 | ||
842 | /* dir: Tx = 0, Rx = 1 */ | |
843 | if (dir) { | |
844 | /* Rx */ | |
845 | netdev->dcbnl_ops->setpgbwgcfgrx(netdev, | |
846 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
847 | } else { | |
848 | /* Tx */ | |
849 | netdev->dcbnl_ops->setpgbwgcfgtx(netdev, | |
850 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
851 | } | |
852 | } | |
853 | ||
bb1dfefd | 854 | return nla_put_u8(skb, DCB_ATTR_PG_CFG, 0); |
2f90b865 AD |
855 | } |
856 | ||
7be99413 TG |
857 | static int dcbnl_pgtx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
858 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 859 | { |
7be99413 | 860 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 0); |
2f90b865 AD |
861 | } |
862 | ||
7be99413 TG |
863 | static int dcbnl_pgrx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
864 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 865 | { |
7be99413 | 866 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 1); |
2f90b865 AD |
867 | } |
868 | ||
7be99413 TG |
869 | static int dcbnl_bcn_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
870 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 | 871 | { |
859ee3c4 AD |
872 | struct nlattr *bcn_nest; |
873 | struct nlattr *bcn_tb[DCB_BCN_ATTR_MAX + 1]; | |
874 | u8 value_byte; | |
875 | u32 value_integer; | |
3d1f4869 | 876 | int ret; |
859ee3c4 AD |
877 | bool getall = false; |
878 | int i; | |
879 | ||
3d1f4869 TG |
880 | if (!tb[DCB_ATTR_BCN]) |
881 | return -EINVAL; | |
882 | ||
883 | if (!netdev->dcbnl_ops->getbcnrp || | |
859ee3c4 | 884 | !netdev->dcbnl_ops->getbcncfg) |
3d1f4869 | 885 | return -EOPNOTSUPP; |
859ee3c4 AD |
886 | |
887 | ret = nla_parse_nested(bcn_tb, DCB_BCN_ATTR_MAX, | |
888 | tb[DCB_ATTR_BCN], dcbnl_bcn_nest); | |
859ee3c4 | 889 | if (ret) |
3d1f4869 | 890 | return ret; |
859ee3c4 | 891 | |
7be99413 | 892 | bcn_nest = nla_nest_start(skb, DCB_ATTR_BCN); |
859ee3c4 | 893 | if (!bcn_nest) |
3d1f4869 | 894 | return -EMSGSIZE; |
859ee3c4 AD |
895 | |
896 | if (bcn_tb[DCB_BCN_ATTR_ALL]) | |
897 | getall = true; | |
898 | ||
899 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
900 | if (!getall && !bcn_tb[i]) | |
901 | continue; | |
902 | ||
903 | netdev->dcbnl_ops->getbcnrp(netdev, i - DCB_BCN_ATTR_RP_0, | |
904 | &value_byte); | |
7be99413 | 905 | ret = nla_put_u8(skb, i, value_byte); |
859ee3c4 AD |
906 | if (ret) |
907 | goto err_bcn; | |
908 | } | |
909 | ||
f4314e81 | 910 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
911 | if (!getall && !bcn_tb[i]) |
912 | continue; | |
913 | ||
914 | netdev->dcbnl_ops->getbcncfg(netdev, i, | |
915 | &value_integer); | |
7be99413 | 916 | ret = nla_put_u32(skb, i, value_integer); |
859ee3c4 AD |
917 | if (ret) |
918 | goto err_bcn; | |
919 | } | |
920 | ||
7be99413 | 921 | nla_nest_end(skb, bcn_nest); |
859ee3c4 AD |
922 | |
923 | return 0; | |
924 | ||
925 | err_bcn: | |
7be99413 | 926 | nla_nest_cancel(skb, bcn_nest); |
859ee3c4 AD |
927 | return ret; |
928 | } | |
929 | ||
7be99413 TG |
930 | static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
931 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 AD |
932 | { |
933 | struct nlattr *data[DCB_BCN_ATTR_MAX + 1]; | |
934 | int i; | |
3d1f4869 | 935 | int ret; |
859ee3c4 AD |
936 | u8 value_byte; |
937 | u32 value_int; | |
938 | ||
3d1f4869 TG |
939 | if (!tb[DCB_ATTR_BCN]) |
940 | return -EINVAL; | |
941 | ||
942 | if (!netdev->dcbnl_ops->setbcncfg || | |
f64f9e71 | 943 | !netdev->dcbnl_ops->setbcnrp) |
3d1f4869 | 944 | return -EOPNOTSUPP; |
859ee3c4 AD |
945 | |
946 | ret = nla_parse_nested(data, DCB_BCN_ATTR_MAX, | |
947 | tb[DCB_ATTR_BCN], | |
948 | dcbnl_pfc_up_nest); | |
949 | if (ret) | |
3d1f4869 | 950 | return ret; |
859ee3c4 AD |
951 | |
952 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
953 | if (data[i] == NULL) | |
954 | continue; | |
955 | value_byte = nla_get_u8(data[i]); | |
956 | netdev->dcbnl_ops->setbcnrp(netdev, | |
957 | data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte); | |
958 | } | |
959 | ||
f4314e81 | 960 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
961 | if (data[i] == NULL) |
962 | continue; | |
963 | value_int = nla_get_u32(data[i]); | |
964 | netdev->dcbnl_ops->setbcncfg(netdev, | |
965 | i, value_int); | |
966 | } | |
967 | ||
3d1f4869 | 968 | return nla_put_u8(skb, DCB_ATTR_BCN, 0); |
859ee3c4 AD |
969 | } |
970 | ||
dc6ed1df SR |
971 | static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb, |
972 | int app_nested_type, int app_info_type, | |
973 | int app_entry_type) | |
eed84713 SR |
974 | { |
975 | struct dcb_peer_app_info info; | |
976 | struct dcb_app *table = NULL; | |
977 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
978 | u16 app_count; | |
979 | int err; | |
980 | ||
981 | ||
982 | /** | |
983 | * retrieve the peer app configuration form the driver. If the driver | |
984 | * handlers fail exit without doing anything | |
985 | */ | |
986 | err = ops->peer_getappinfo(netdev, &info, &app_count); | |
987 | if (!err && app_count) { | |
988 | table = kmalloc(sizeof(struct dcb_app) * app_count, GFP_KERNEL); | |
989 | if (!table) | |
990 | return -ENOMEM; | |
991 | ||
992 | err = ops->peer_getapptable(netdev, table); | |
993 | } | |
994 | ||
995 | if (!err) { | |
996 | u16 i; | |
997 | struct nlattr *app; | |
998 | ||
999 | /** | |
1000 | * build the message, from here on the only possible failure | |
1001 | * is due to the skb size | |
1002 | */ | |
1003 | err = -EMSGSIZE; | |
1004 | ||
dc6ed1df | 1005 | app = nla_nest_start(skb, app_nested_type); |
eed84713 SR |
1006 | if (!app) |
1007 | goto nla_put_failure; | |
1008 | ||
1eb4c977 DM |
1009 | if (app_info_type && |
1010 | nla_put(skb, app_info_type, sizeof(info), &info)) | |
1011 | goto nla_put_failure; | |
eed84713 | 1012 | |
1eb4c977 DM |
1013 | for (i = 0; i < app_count; i++) { |
1014 | if (nla_put(skb, app_entry_type, sizeof(struct dcb_app), | |
1015 | &table[i])) | |
1016 | goto nla_put_failure; | |
1017 | } | |
eed84713 SR |
1018 | nla_nest_end(skb, app); |
1019 | } | |
1020 | err = 0; | |
1021 | ||
1022 | nla_put_failure: | |
1023 | kfree(table); | |
1024 | return err; | |
1025 | } | |
3e29027a JF |
1026 | |
1027 | /* Handle IEEE 802.1Qaz GET commands. */ | |
314b4778 | 1028 | static int dcbnl_ieee_fill(struct sk_buff *skb, struct net_device *netdev) |
3e29027a | 1029 | { |
9ab933ab JF |
1030 | struct nlattr *ieee, *app; |
1031 | struct dcb_app_type *itr; | |
3e29027a | 1032 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
c7797baf | 1033 | int dcbx; |
3d1f4869 | 1034 | int err; |
3e29027a | 1035 | |
1eb4c977 | 1036 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
3d1f4869 TG |
1037 | return -EMSGSIZE; |
1038 | ||
3e29027a JF |
1039 | ieee = nla_nest_start(skb, DCB_ATTR_IEEE); |
1040 | if (!ieee) | |
3d1f4869 | 1041 | return -EMSGSIZE; |
3e29027a JF |
1042 | |
1043 | if (ops->ieee_getets) { | |
1044 | struct ieee_ets ets; | |
29cd8ae0 | 1045 | memset(&ets, 0, sizeof(ets)); |
3e29027a | 1046 | err = ops->ieee_getets(netdev, &ets); |
1eb4c977 DM |
1047 | if (!err && |
1048 | nla_put(skb, DCB_ATTR_IEEE_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1049 | return -EMSGSIZE; |
3e29027a JF |
1050 | } |
1051 | ||
08f10aff AV |
1052 | if (ops->ieee_getmaxrate) { |
1053 | struct ieee_maxrate maxrate; | |
29cd8ae0 | 1054 | memset(&maxrate, 0, sizeof(maxrate)); |
08f10aff AV |
1055 | err = ops->ieee_getmaxrate(netdev, &maxrate); |
1056 | if (!err) { | |
1057 | err = nla_put(skb, DCB_ATTR_IEEE_MAXRATE, | |
1058 | sizeof(maxrate), &maxrate); | |
1059 | if (err) | |
3d1f4869 | 1060 | return -EMSGSIZE; |
08f10aff AV |
1061 | } |
1062 | } | |
1063 | ||
3e29027a JF |
1064 | if (ops->ieee_getpfc) { |
1065 | struct ieee_pfc pfc; | |
29cd8ae0 | 1066 | memset(&pfc, 0, sizeof(pfc)); |
3e29027a | 1067 | err = ops->ieee_getpfc(netdev, &pfc); |
1eb4c977 DM |
1068 | if (!err && |
1069 | nla_put(skb, DCB_ATTR_IEEE_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1070 | return -EMSGSIZE; |
3e29027a JF |
1071 | } |
1072 | ||
9ab933ab JF |
1073 | app = nla_nest_start(skb, DCB_ATTR_IEEE_APP_TABLE); |
1074 | if (!app) | |
3d1f4869 | 1075 | return -EMSGSIZE; |
9ab933ab JF |
1076 | |
1077 | spin_lock(&dcb_lock); | |
1078 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1079 | if (itr->ifindex == netdev->ifindex) { |
70bfa2d2 DC |
1080 | err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app), |
1081 | &itr->app); | |
1082 | if (err) { | |
1083 | spin_unlock(&dcb_lock); | |
3d1f4869 | 1084 | return -EMSGSIZE; |
70bfa2d2 DC |
1085 | } |
1086 | } | |
9ab933ab | 1087 | } |
c7797baf JF |
1088 | |
1089 | if (netdev->dcbnl_ops->getdcbx) | |
1090 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1091 | else | |
1092 | dcbx = -EOPNOTSUPP; | |
1093 | ||
9ab933ab JF |
1094 | spin_unlock(&dcb_lock); |
1095 | nla_nest_end(skb, app); | |
1096 | ||
eed84713 SR |
1097 | /* get peer info if available */ |
1098 | if (ops->ieee_peer_getets) { | |
1099 | struct ieee_ets ets; | |
29cd8ae0 | 1100 | memset(&ets, 0, sizeof(ets)); |
eed84713 | 1101 | err = ops->ieee_peer_getets(netdev, &ets); |
1eb4c977 DM |
1102 | if (!err && |
1103 | nla_put(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1104 | return -EMSGSIZE; |
eed84713 SR |
1105 | } |
1106 | ||
1107 | if (ops->ieee_peer_getpfc) { | |
1108 | struct ieee_pfc pfc; | |
29cd8ae0 | 1109 | memset(&pfc, 0, sizeof(pfc)); |
eed84713 | 1110 | err = ops->ieee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1111 | if (!err && |
1112 | nla_put(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1113 | return -EMSGSIZE; |
eed84713 SR |
1114 | } |
1115 | ||
1116 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
dc6ed1df SR |
1117 | err = dcbnl_build_peer_app(netdev, skb, |
1118 | DCB_ATTR_IEEE_PEER_APP, | |
1119 | DCB_ATTR_IEEE_APP_UNSPEC, | |
1120 | DCB_ATTR_IEEE_APP); | |
eed84713 | 1121 | if (err) |
3d1f4869 | 1122 | return -EMSGSIZE; |
eed84713 SR |
1123 | } |
1124 | ||
3e29027a | 1125 | nla_nest_end(skb, ieee); |
c7797baf JF |
1126 | if (dcbx >= 0) { |
1127 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1128 | if (err) | |
3d1f4869 | 1129 | return -EMSGSIZE; |
c7797baf | 1130 | } |
3e29027a | 1131 | |
314b4778 | 1132 | return 0; |
3e29027a JF |
1133 | } |
1134 | ||
5b7f7626 SR |
1135 | static int dcbnl_cee_pg_fill(struct sk_buff *skb, struct net_device *dev, |
1136 | int dir) | |
1137 | { | |
1138 | u8 pgid, up_map, prio, tc_pct; | |
1139 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; | |
1140 | int i = dir ? DCB_ATTR_CEE_TX_PG : DCB_ATTR_CEE_RX_PG; | |
1141 | struct nlattr *pg = nla_nest_start(skb, i); | |
1142 | ||
1143 | if (!pg) | |
3d1f4869 | 1144 | return -EMSGSIZE; |
5b7f7626 SR |
1145 | |
1146 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
1147 | struct nlattr *tc_nest = nla_nest_start(skb, i); | |
1148 | ||
1149 | if (!tc_nest) | |
3d1f4869 | 1150 | return -EMSGSIZE; |
5b7f7626 SR |
1151 | |
1152 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
1153 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
1154 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1155 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
1156 | ||
1157 | if (!dir) | |
1158 | ops->getpgtccfgrx(dev, i - DCB_PG_ATTR_TC_0, | |
1159 | &prio, &pgid, &tc_pct, &up_map); | |
1160 | else | |
1161 | ops->getpgtccfgtx(dev, i - DCB_PG_ATTR_TC_0, | |
1162 | &prio, &pgid, &tc_pct, &up_map); | |
1163 | ||
1eb4c977 DM |
1164 | if (nla_put_u8(skb, DCB_TC_ATTR_PARAM_PGID, pgid) || |
1165 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_UP_MAPPING, up_map) || | |
1166 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_STRICT_PRIO, prio) || | |
1167 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, tc_pct)) | |
3d1f4869 | 1168 | return -EMSGSIZE; |
5b7f7626 SR |
1169 | nla_nest_end(skb, tc_nest); |
1170 | } | |
1171 | ||
1172 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
1173 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1174 | ||
1175 | if (!dir) | |
1176 | ops->getpgbwgcfgrx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1177 | &tc_pct); | |
1178 | else | |
1179 | ops->getpgbwgcfgtx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1180 | &tc_pct); | |
1eb4c977 | 1181 | if (nla_put_u8(skb, i, tc_pct)) |
3d1f4869 | 1182 | return -EMSGSIZE; |
5b7f7626 SR |
1183 | } |
1184 | nla_nest_end(skb, pg); | |
1185 | return 0; | |
5b7f7626 SR |
1186 | } |
1187 | ||
1188 | static int dcbnl_cee_fill(struct sk_buff *skb, struct net_device *netdev) | |
1189 | { | |
1190 | struct nlattr *cee, *app; | |
1191 | struct dcb_app_type *itr; | |
1192 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1193 | int dcbx, i, err = -EMSGSIZE; | |
1194 | u8 value; | |
1195 | ||
1eb4c977 DM |
1196 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
1197 | goto nla_put_failure; | |
5b7f7626 SR |
1198 | cee = nla_nest_start(skb, DCB_ATTR_CEE); |
1199 | if (!cee) | |
1200 | goto nla_put_failure; | |
1201 | ||
1202 | /* local pg */ | |
1203 | if (ops->getpgtccfgtx && ops->getpgbwgcfgtx) { | |
1204 | err = dcbnl_cee_pg_fill(skb, netdev, 1); | |
1205 | if (err) | |
1206 | goto nla_put_failure; | |
1207 | } | |
1208 | ||
1209 | if (ops->getpgtccfgrx && ops->getpgbwgcfgrx) { | |
1210 | err = dcbnl_cee_pg_fill(skb, netdev, 0); | |
1211 | if (err) | |
1212 | goto nla_put_failure; | |
1213 | } | |
1214 | ||
1215 | /* local pfc */ | |
1216 | if (ops->getpfccfg) { | |
1217 | struct nlattr *pfc_nest = nla_nest_start(skb, DCB_ATTR_CEE_PFC); | |
1218 | ||
1219 | if (!pfc_nest) | |
1220 | goto nla_put_failure; | |
1221 | ||
1222 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
1223 | ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, &value); | |
1eb4c977 DM |
1224 | if (nla_put_u8(skb, i, value)) |
1225 | goto nla_put_failure; | |
5b7f7626 SR |
1226 | } |
1227 | nla_nest_end(skb, pfc_nest); | |
1228 | } | |
1229 | ||
1230 | /* local app */ | |
1231 | spin_lock(&dcb_lock); | |
1232 | app = nla_nest_start(skb, DCB_ATTR_CEE_APP_TABLE); | |
1233 | if (!app) | |
40f5d72a | 1234 | goto dcb_unlock; |
5b7f7626 SR |
1235 | |
1236 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1237 | if (itr->ifindex == netdev->ifindex) { |
5b7f7626 SR |
1238 | struct nlattr *app_nest = nla_nest_start(skb, |
1239 | DCB_ATTR_APP); | |
1240 | if (!app_nest) | |
1241 | goto dcb_unlock; | |
1242 | ||
1243 | err = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, | |
1244 | itr->app.selector); | |
1245 | if (err) | |
1246 | goto dcb_unlock; | |
1247 | ||
1248 | err = nla_put_u16(skb, DCB_APP_ATTR_ID, | |
1249 | itr->app.protocol); | |
1250 | if (err) | |
1251 | goto dcb_unlock; | |
1252 | ||
1253 | err = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, | |
1254 | itr->app.priority); | |
1255 | if (err) | |
1256 | goto dcb_unlock; | |
1257 | ||
1258 | nla_nest_end(skb, app_nest); | |
1259 | } | |
1260 | } | |
1261 | nla_nest_end(skb, app); | |
1262 | ||
1263 | if (netdev->dcbnl_ops->getdcbx) | |
1264 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1265 | else | |
1266 | dcbx = -EOPNOTSUPP; | |
1267 | ||
1268 | spin_unlock(&dcb_lock); | |
1269 | ||
1270 | /* features flags */ | |
1271 | if (ops->getfeatcfg) { | |
1272 | struct nlattr *feat = nla_nest_start(skb, DCB_ATTR_CEE_FEAT); | |
1273 | if (!feat) | |
1274 | goto nla_put_failure; | |
1275 | ||
1276 | for (i = DCB_FEATCFG_ATTR_ALL + 1; i <= DCB_FEATCFG_ATTR_MAX; | |
1277 | i++) | |
1eb4c977 DM |
1278 | if (!ops->getfeatcfg(netdev, i, &value) && |
1279 | nla_put_u8(skb, i, value)) | |
1280 | goto nla_put_failure; | |
5b7f7626 SR |
1281 | |
1282 | nla_nest_end(skb, feat); | |
1283 | } | |
1284 | ||
1285 | /* peer info if available */ | |
1286 | if (ops->cee_peer_getpg) { | |
1287 | struct cee_pg pg; | |
29cd8ae0 | 1288 | memset(&pg, 0, sizeof(pg)); |
5b7f7626 | 1289 | err = ops->cee_peer_getpg(netdev, &pg); |
1eb4c977 DM |
1290 | if (!err && |
1291 | nla_put(skb, DCB_ATTR_CEE_PEER_PG, sizeof(pg), &pg)) | |
1292 | goto nla_put_failure; | |
5b7f7626 SR |
1293 | } |
1294 | ||
1295 | if (ops->cee_peer_getpfc) { | |
1296 | struct cee_pfc pfc; | |
29cd8ae0 | 1297 | memset(&pfc, 0, sizeof(pfc)); |
5b7f7626 | 1298 | err = ops->cee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1299 | if (!err && |
1300 | nla_put(skb, DCB_ATTR_CEE_PEER_PFC, sizeof(pfc), &pfc)) | |
1301 | goto nla_put_failure; | |
5b7f7626 SR |
1302 | } |
1303 | ||
1304 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
1305 | err = dcbnl_build_peer_app(netdev, skb, | |
1306 | DCB_ATTR_CEE_PEER_APP_TABLE, | |
1307 | DCB_ATTR_CEE_PEER_APP_INFO, | |
1308 | DCB_ATTR_CEE_PEER_APP); | |
1309 | if (err) | |
1310 | goto nla_put_failure; | |
1311 | } | |
1312 | nla_nest_end(skb, cee); | |
1313 | ||
1314 | /* DCBX state */ | |
1315 | if (dcbx >= 0) { | |
1316 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1317 | if (err) | |
1318 | goto nla_put_failure; | |
1319 | } | |
1320 | return 0; | |
1321 | ||
1322 | dcb_unlock: | |
1323 | spin_unlock(&dcb_lock); | |
1324 | nla_put_failure: | |
1325 | return err; | |
1326 | } | |
1327 | ||
1328 | static int dcbnl_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1329 | u32 seq, u32 portid, int dcbx_ver) |
314b4778 JF |
1330 | { |
1331 | struct net *net = dev_net(dev); | |
1332 | struct sk_buff *skb; | |
1333 | struct nlmsghdr *nlh; | |
314b4778 JF |
1334 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; |
1335 | int err; | |
1336 | ||
1337 | if (!ops) | |
1338 | return -EOPNOTSUPP; | |
1339 | ||
15e47304 | 1340 | skb = dcbnl_newmsg(event, cmd, portid, seq, 0, &nlh); |
314b4778 JF |
1341 | if (!skb) |
1342 | return -ENOBUFS; | |
1343 | ||
5b7f7626 SR |
1344 | if (dcbx_ver == DCB_CAP_DCBX_VER_IEEE) |
1345 | err = dcbnl_ieee_fill(skb, dev); | |
1346 | else | |
1347 | err = dcbnl_cee_fill(skb, dev); | |
1348 | ||
314b4778 JF |
1349 | if (err < 0) { |
1350 | /* Report error to broadcast listeners */ | |
ab6d4707 | 1351 | nlmsg_free(skb); |
314b4778 JF |
1352 | rtnl_set_sk_err(net, RTNLGRP_DCB, err); |
1353 | } else { | |
1354 | /* End nlmsg and notify broadcast listeners */ | |
1355 | nlmsg_end(skb, nlh); | |
1356 | rtnl_notify(skb, net, 0, RTNLGRP_DCB, NULL, GFP_KERNEL); | |
1357 | } | |
1358 | ||
1359 | return err; | |
1360 | } | |
5b7f7626 SR |
1361 | |
1362 | int dcbnl_ieee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1363 | u32 seq, u32 portid) |
5b7f7626 | 1364 | { |
15e47304 | 1365 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_IEEE); |
5b7f7626 SR |
1366 | } |
1367 | EXPORT_SYMBOL(dcbnl_ieee_notify); | |
1368 | ||
1369 | int dcbnl_cee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1370 | u32 seq, u32 portid) |
5b7f7626 | 1371 | { |
15e47304 | 1372 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_CEE); |
5b7f7626 SR |
1373 | } |
1374 | EXPORT_SYMBOL(dcbnl_cee_notify); | |
314b4778 JF |
1375 | |
1376 | /* Handle IEEE 802.1Qaz SET commands. If any requested operation can not | |
1377 | * be completed the entire msg is aborted and error value is returned. | |
1378 | * No attempt is made to reconcile the case where only part of the | |
1379 | * cmd can be completed. | |
1380 | */ | |
7be99413 TG |
1381 | static int dcbnl_ieee_set(struct net_device *netdev, struct nlmsghdr *nlh, |
1382 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 JF |
1383 | { |
1384 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1385 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1386 | int err; |
314b4778 JF |
1387 | |
1388 | if (!ops) | |
3d1f4869 | 1389 | return -EOPNOTSUPP; |
314b4778 | 1390 | |
4003b658 JF |
1391 | if (!tb[DCB_ATTR_IEEE]) |
1392 | return -EINVAL; | |
1393 | ||
314b4778 JF |
1394 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, |
1395 | tb[DCB_ATTR_IEEE], dcbnl_ieee_policy); | |
1396 | if (err) | |
1397 | return err; | |
1398 | ||
1399 | if (ieee[DCB_ATTR_IEEE_ETS] && ops->ieee_setets) { | |
1400 | struct ieee_ets *ets = nla_data(ieee[DCB_ATTR_IEEE_ETS]); | |
1401 | err = ops->ieee_setets(netdev, ets); | |
1402 | if (err) | |
1403 | goto err; | |
1404 | } | |
1405 | ||
08f10aff AV |
1406 | if (ieee[DCB_ATTR_IEEE_MAXRATE] && ops->ieee_setmaxrate) { |
1407 | struct ieee_maxrate *maxrate = | |
1408 | nla_data(ieee[DCB_ATTR_IEEE_MAXRATE]); | |
1409 | err = ops->ieee_setmaxrate(netdev, maxrate); | |
1410 | if (err) | |
1411 | goto err; | |
1412 | } | |
1413 | ||
314b4778 JF |
1414 | if (ieee[DCB_ATTR_IEEE_PFC] && ops->ieee_setpfc) { |
1415 | struct ieee_pfc *pfc = nla_data(ieee[DCB_ATTR_IEEE_PFC]); | |
1416 | err = ops->ieee_setpfc(netdev, pfc); | |
1417 | if (err) | |
1418 | goto err; | |
1419 | } | |
1420 | ||
1421 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1422 | struct nlattr *attr; | |
1423 | int rem; | |
1424 | ||
1425 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1426 | struct dcb_app *app_data; | |
1427 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1428 | continue; | |
1429 | app_data = nla_data(attr); | |
1430 | if (ops->ieee_setapp) | |
1431 | err = ops->ieee_setapp(netdev, app_data); | |
1432 | else | |
b6db2174 | 1433 | err = dcb_ieee_setapp(netdev, app_data); |
314b4778 JF |
1434 | if (err) |
1435 | goto err; | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | err: | |
7be99413 | 1440 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1441 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_SET, seq, 0); |
314b4778 JF |
1442 | return err; |
1443 | } | |
1444 | ||
7be99413 TG |
1445 | static int dcbnl_ieee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1446 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 | 1447 | { |
314b4778 | 1448 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
314b4778 JF |
1449 | |
1450 | if (!ops) | |
1451 | return -EOPNOTSUPP; | |
1452 | ||
7be99413 | 1453 | return dcbnl_ieee_fill(skb, netdev); |
314b4778 | 1454 | } |
f9ae7e4b | 1455 | |
7be99413 TG |
1456 | static int dcbnl_ieee_del(struct net_device *netdev, struct nlmsghdr *nlh, |
1457 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
f9ae7e4b JF |
1458 | { |
1459 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1460 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1461 | int err; |
f9ae7e4b JF |
1462 | |
1463 | if (!ops) | |
1464 | return -EOPNOTSUPP; | |
1465 | ||
1466 | if (!tb[DCB_ATTR_IEEE]) | |
1467 | return -EINVAL; | |
1468 | ||
1469 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, | |
1470 | tb[DCB_ATTR_IEEE], dcbnl_ieee_policy); | |
1471 | if (err) | |
1472 | return err; | |
1473 | ||
1474 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1475 | struct nlattr *attr; | |
1476 | int rem; | |
1477 | ||
1478 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1479 | struct dcb_app *app_data; | |
1480 | ||
1481 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1482 | continue; | |
1483 | app_data = nla_data(attr); | |
1484 | if (ops->ieee_delapp) | |
1485 | err = ops->ieee_delapp(netdev, app_data); | |
1486 | else | |
1487 | err = dcb_ieee_delapp(netdev, app_data); | |
1488 | if (err) | |
1489 | goto err; | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | err: | |
7be99413 | 1494 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1495 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_DEL, seq, 0); |
f9ae7e4b JF |
1496 | return err; |
1497 | } | |
1498 | ||
1499 | ||
6241b625 | 1500 | /* DCBX configuration */ |
7be99413 TG |
1501 | static int dcbnl_getdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1502 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1503 | { |
6241b625 | 1504 | if (!netdev->dcbnl_ops->getdcbx) |
7f891cf1 | 1505 | return -EOPNOTSUPP; |
6241b625 | 1506 | |
7be99413 TG |
1507 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1508 | netdev->dcbnl_ops->getdcbx(netdev)); | |
6241b625 SR |
1509 | } |
1510 | ||
7be99413 TG |
1511 | static int dcbnl_setdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1512 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1513 | { |
6241b625 SR |
1514 | u8 value; |
1515 | ||
7f891cf1 SR |
1516 | if (!netdev->dcbnl_ops->setdcbx) |
1517 | return -EOPNOTSUPP; | |
1518 | ||
1519 | if (!tb[DCB_ATTR_DCBX]) | |
1520 | return -EINVAL; | |
6241b625 SR |
1521 | |
1522 | value = nla_get_u8(tb[DCB_ATTR_DCBX]); | |
1523 | ||
7be99413 TG |
1524 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1525 | netdev->dcbnl_ops->setdcbx(netdev, value)); | |
6241b625 SR |
1526 | } |
1527 | ||
7be99413 TG |
1528 | static int dcbnl_getfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1529 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e | 1530 | { |
ea45fe4e SR |
1531 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1], *nest; |
1532 | u8 value; | |
7f891cf1 | 1533 | int ret, i; |
ea45fe4e SR |
1534 | int getall = 0; |
1535 | ||
7f891cf1 SR |
1536 | if (!netdev->dcbnl_ops->getfeatcfg) |
1537 | return -EOPNOTSUPP; | |
1538 | ||
1539 | if (!tb[DCB_ATTR_FEATCFG]) | |
1540 | return -EINVAL; | |
ea45fe4e SR |
1541 | |
1542 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG], | |
1543 | dcbnl_featcfg_nest); | |
7f891cf1 | 1544 | if (ret) |
7be99413 | 1545 | return ret; |
ea45fe4e | 1546 | |
7be99413 TG |
1547 | nest = nla_nest_start(skb, DCB_ATTR_FEATCFG); |
1548 | if (!nest) | |
1549 | return -EMSGSIZE; | |
ea45fe4e SR |
1550 | |
1551 | if (data[DCB_FEATCFG_ATTR_ALL]) | |
1552 | getall = 1; | |
1553 | ||
1554 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1555 | if (!getall && !data[i]) | |
1556 | continue; | |
1557 | ||
1558 | ret = netdev->dcbnl_ops->getfeatcfg(netdev, i, &value); | |
7f891cf1 | 1559 | if (!ret) |
7be99413 | 1560 | ret = nla_put_u8(skb, i, value); |
ea45fe4e | 1561 | |
7f891cf1 | 1562 | if (ret) { |
7be99413 | 1563 | nla_nest_cancel(skb, nest); |
7f891cf1 SR |
1564 | goto nla_put_failure; |
1565 | } | |
ea45fe4e | 1566 | } |
7be99413 | 1567 | nla_nest_end(skb, nest); |
ea45fe4e | 1568 | |
7f891cf1 | 1569 | nla_put_failure: |
ea45fe4e SR |
1570 | return ret; |
1571 | } | |
1572 | ||
7be99413 TG |
1573 | static int dcbnl_setfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1574 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e SR |
1575 | { |
1576 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1]; | |
7f891cf1 | 1577 | int ret, i; |
ea45fe4e | 1578 | u8 value; |
ea45fe4e | 1579 | |
7f891cf1 SR |
1580 | if (!netdev->dcbnl_ops->setfeatcfg) |
1581 | return -ENOTSUPP; | |
1582 | ||
1583 | if (!tb[DCB_ATTR_FEATCFG]) | |
1584 | return -EINVAL; | |
ea45fe4e SR |
1585 | |
1586 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG], | |
1587 | dcbnl_featcfg_nest); | |
1588 | ||
7f891cf1 | 1589 | if (ret) |
ea45fe4e | 1590 | goto err; |
ea45fe4e SR |
1591 | |
1592 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1593 | if (data[i] == NULL) | |
1594 | continue; | |
1595 | ||
1596 | value = nla_get_u8(data[i]); | |
1597 | ||
1598 | ret = netdev->dcbnl_ops->setfeatcfg(netdev, i, value); | |
1599 | ||
1600 | if (ret) | |
7f891cf1 | 1601 | goto err; |
ea45fe4e | 1602 | } |
ea45fe4e | 1603 | err: |
7be99413 | 1604 | ret = nla_put_u8(skb, DCB_ATTR_FEATCFG, ret); |
7f891cf1 | 1605 | |
ea45fe4e SR |
1606 | return ret; |
1607 | } | |
1608 | ||
dc6ed1df | 1609 | /* Handle CEE DCBX GET commands. */ |
7be99413 TG |
1610 | static int dcbnl_cee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1611 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
dc6ed1df | 1612 | { |
dc6ed1df | 1613 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
dc6ed1df SR |
1614 | |
1615 | if (!ops) | |
1616 | return -EOPNOTSUPP; | |
1617 | ||
7be99413 | 1618 | return dcbnl_cee_fill(skb, netdev); |
dc6ed1df SR |
1619 | } |
1620 | ||
33a03aad TG |
1621 | struct reply_func { |
1622 | /* reply netlink message type */ | |
1623 | int type; | |
1624 | ||
1625 | /* function to fill message contents */ | |
1626 | int (*cb)(struct net_device *, struct nlmsghdr *, u32, | |
1627 | struct nlattr **, struct sk_buff *); | |
1628 | }; | |
1629 | ||
1630 | static const struct reply_func reply_funcs[DCB_CMD_MAX+1] = { | |
7be99413 TG |
1631 | [DCB_CMD_GSTATE] = { RTM_GETDCB, dcbnl_getstate }, |
1632 | [DCB_CMD_SSTATE] = { RTM_SETDCB, dcbnl_setstate }, | |
1633 | [DCB_CMD_PFC_GCFG] = { RTM_GETDCB, dcbnl_getpfccfg }, | |
1634 | [DCB_CMD_PFC_SCFG] = { RTM_SETDCB, dcbnl_setpfccfg }, | |
1635 | [DCB_CMD_GPERM_HWADDR] = { RTM_GETDCB, dcbnl_getperm_hwaddr }, | |
1636 | [DCB_CMD_GCAP] = { RTM_GETDCB, dcbnl_getcap }, | |
1637 | [DCB_CMD_GNUMTCS] = { RTM_GETDCB, dcbnl_getnumtcs }, | |
1638 | [DCB_CMD_SNUMTCS] = { RTM_SETDCB, dcbnl_setnumtcs }, | |
1639 | [DCB_CMD_PFC_GSTATE] = { RTM_GETDCB, dcbnl_getpfcstate }, | |
1640 | [DCB_CMD_PFC_SSTATE] = { RTM_SETDCB, dcbnl_setpfcstate }, | |
1641 | [DCB_CMD_GAPP] = { RTM_GETDCB, dcbnl_getapp }, | |
1642 | [DCB_CMD_SAPP] = { RTM_SETDCB, dcbnl_setapp }, | |
1643 | [DCB_CMD_PGTX_GCFG] = { RTM_GETDCB, dcbnl_pgtx_getcfg }, | |
1644 | [DCB_CMD_PGTX_SCFG] = { RTM_SETDCB, dcbnl_pgtx_setcfg }, | |
1645 | [DCB_CMD_PGRX_GCFG] = { RTM_GETDCB, dcbnl_pgrx_getcfg }, | |
1646 | [DCB_CMD_PGRX_SCFG] = { RTM_SETDCB, dcbnl_pgrx_setcfg }, | |
1647 | [DCB_CMD_SET_ALL] = { RTM_SETDCB, dcbnl_setall }, | |
1648 | [DCB_CMD_BCN_GCFG] = { RTM_GETDCB, dcbnl_bcn_getcfg }, | |
1649 | [DCB_CMD_BCN_SCFG] = { RTM_SETDCB, dcbnl_bcn_setcfg }, | |
1650 | [DCB_CMD_IEEE_GET] = { RTM_GETDCB, dcbnl_ieee_get }, | |
1651 | [DCB_CMD_IEEE_SET] = { RTM_SETDCB, dcbnl_ieee_set }, | |
1652 | [DCB_CMD_IEEE_DEL] = { RTM_SETDCB, dcbnl_ieee_del }, | |
1653 | [DCB_CMD_GDCBX] = { RTM_GETDCB, dcbnl_getdcbx }, | |
1654 | [DCB_CMD_SDCBX] = { RTM_SETDCB, dcbnl_setdcbx }, | |
1655 | [DCB_CMD_GFEATCFG] = { RTM_GETDCB, dcbnl_getfeatcfg }, | |
1656 | [DCB_CMD_SFEATCFG] = { RTM_SETDCB, dcbnl_setfeatcfg }, | |
1657 | [DCB_CMD_CEE_GET] = { RTM_GETDCB, dcbnl_cee_get }, | |
33a03aad TG |
1658 | }; |
1659 | ||
661d2967 | 1660 | static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh) |
2f90b865 AD |
1661 | { |
1662 | struct net *net = sock_net(skb->sk); | |
1663 | struct net_device *netdev; | |
7a282bc3 | 1664 | struct dcbmsg *dcb = nlmsg_data(nlh); |
2f90b865 | 1665 | struct nlattr *tb[DCB_ATTR_MAX + 1]; |
15e47304 | 1666 | u32 portid = skb ? NETLINK_CB(skb).portid : 0; |
2f90b865 | 1667 | int ret = -EINVAL; |
33a03aad | 1668 | struct sk_buff *reply_skb; |
39912f9c | 1669 | struct nlmsghdr *reply_nlh = NULL; |
33a03aad | 1670 | const struct reply_func *fn; |
2f90b865 | 1671 | |
90f62cf3 | 1672 | if ((nlh->nlmsg_type == RTM_SETDCB) && !netlink_capable(skb, CAP_NET_ADMIN)) |
dfc47ef8 EB |
1673 | return -EPERM; |
1674 | ||
2f90b865 AD |
1675 | ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX, |
1676 | dcbnl_rtnl_policy); | |
1677 | if (ret < 0) | |
1678 | return ret; | |
1679 | ||
33a03aad TG |
1680 | if (dcb->cmd > DCB_CMD_MAX) |
1681 | return -EINVAL; | |
1682 | ||
1683 | /* check if a reply function has been defined for the command */ | |
1684 | fn = &reply_funcs[dcb->cmd]; | |
1685 | if (!fn->cb) | |
1686 | return -EOPNOTSUPP; | |
1687 | ||
2f90b865 AD |
1688 | if (!tb[DCB_ATTR_IFNAME]) |
1689 | return -EINVAL; | |
1690 | ||
d9ac62be | 1691 | netdev = __dev_get_by_name(net, nla_data(tb[DCB_ATTR_IFNAME])); |
2f90b865 | 1692 | if (!netdev) |
3d1f4869 | 1693 | return -ENODEV; |
2f90b865 | 1694 | |
d9ac62be YX |
1695 | if (!netdev->dcbnl_ops) |
1696 | return -EOPNOTSUPP; | |
2f90b865 | 1697 | |
15e47304 | 1698 | reply_skb = dcbnl_newmsg(fn->type, dcb->cmd, portid, nlh->nlmsg_seq, |
33a03aad | 1699 | nlh->nlmsg_flags, &reply_nlh); |
d9ac62be YX |
1700 | if (!reply_skb) |
1701 | return -ENOBUFS; | |
33a03aad TG |
1702 | |
1703 | ret = fn->cb(netdev, nlh, nlh->nlmsg_seq, tb, reply_skb); | |
1704 | if (ret < 0) { | |
1705 | nlmsg_free(reply_skb); | |
1706 | goto out; | |
1707 | } | |
1708 | ||
1709 | nlmsg_end(reply_skb, reply_nlh); | |
1710 | ||
7c77ab24 | 1711 | ret = rtnl_unicast(reply_skb, net, portid); |
2f90b865 | 1712 | out: |
2f90b865 AD |
1713 | return ret; |
1714 | } | |
1715 | ||
716b31ab TG |
1716 | static struct dcb_app_type *dcb_app_lookup(const struct dcb_app *app, |
1717 | int ifindex, int prio) | |
1718 | { | |
1719 | struct dcb_app_type *itr; | |
1720 | ||
1721 | list_for_each_entry(itr, &dcb_app_list, list) { | |
1722 | if (itr->app.selector == app->selector && | |
1723 | itr->app.protocol == app->protocol && | |
1724 | itr->ifindex == ifindex && | |
1725 | (!prio || itr->app.priority == prio)) | |
1726 | return itr; | |
1727 | } | |
1728 | ||
1729 | return NULL; | |
1730 | } | |
1731 | ||
4e4f2f69 TG |
1732 | static int dcb_app_add(const struct dcb_app *app, int ifindex) |
1733 | { | |
1734 | struct dcb_app_type *entry; | |
1735 | ||
1736 | entry = kmalloc(sizeof(*entry), GFP_ATOMIC); | |
1737 | if (!entry) | |
1738 | return -ENOMEM; | |
1739 | ||
1740 | memcpy(&entry->app, app, sizeof(*app)); | |
1741 | entry->ifindex = ifindex; | |
1742 | list_add(&entry->list, &dcb_app_list); | |
1743 | ||
1744 | return 0; | |
1745 | } | |
1746 | ||
9ab933ab JF |
1747 | /** |
1748 | * dcb_getapp - retrieve the DCBX application user priority | |
1749 | * | |
1750 | * On success returns a non-zero 802.1p user priority bitmap | |
1751 | * otherwise returns 0 as the invalid user priority bitmap to | |
1752 | * indicate an error. | |
1753 | */ | |
1754 | u8 dcb_getapp(struct net_device *dev, struct dcb_app *app) | |
1755 | { | |
1756 | struct dcb_app_type *itr; | |
1757 | u8 prio = 0; | |
1758 | ||
1759 | spin_lock(&dcb_lock); | |
716b31ab TG |
1760 | if ((itr = dcb_app_lookup(app, dev->ifindex, 0))) |
1761 | prio = itr->app.priority; | |
9ab933ab JF |
1762 | spin_unlock(&dcb_lock); |
1763 | ||
1764 | return prio; | |
1765 | } | |
1766 | EXPORT_SYMBOL(dcb_getapp); | |
1767 | ||
1768 | /** | |
b6db2174 | 1769 | * dcb_setapp - add CEE dcb application data to app list |
9ab933ab | 1770 | * |
b6db2174 JF |
1771 | * Priority 0 is an invalid priority in CEE spec. This routine |
1772 | * removes applications from the app list if the priority is | |
1773 | * set to zero. | |
9ab933ab | 1774 | */ |
ab6baf98 | 1775 | int dcb_setapp(struct net_device *dev, struct dcb_app *new) |
9ab933ab JF |
1776 | { |
1777 | struct dcb_app_type *itr; | |
7ec79270 | 1778 | struct dcb_app_type event; |
4e4f2f69 | 1779 | int err = 0; |
7ec79270 | 1780 | |
e290ed81 | 1781 | event.ifindex = dev->ifindex; |
7ec79270 | 1782 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1783 | if (dev->dcbnl_ops->getdcbx) |
1784 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
9ab933ab JF |
1785 | |
1786 | spin_lock(&dcb_lock); | |
1787 | /* Search for existing match and replace */ | |
716b31ab TG |
1788 | if ((itr = dcb_app_lookup(new, dev->ifindex, 0))) { |
1789 | if (new->priority) | |
1790 | itr->app.priority = new->priority; | |
1791 | else { | |
1792 | list_del(&itr->list); | |
1793 | kfree(itr); | |
9ab933ab | 1794 | } |
716b31ab | 1795 | goto out; |
9ab933ab JF |
1796 | } |
1797 | /* App type does not exist add new application type */ | |
4e4f2f69 TG |
1798 | if (new->priority) |
1799 | err = dcb_app_add(new, dev->ifindex); | |
9ab933ab JF |
1800 | out: |
1801 | spin_unlock(&dcb_lock); | |
4e4f2f69 TG |
1802 | if (!err) |
1803 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1804 | return err; | |
9ab933ab JF |
1805 | } |
1806 | EXPORT_SYMBOL(dcb_setapp); | |
1807 | ||
a364c8cf JF |
1808 | /** |
1809 | * dcb_ieee_getapp_mask - retrieve the IEEE DCB application priority | |
1810 | * | |
1811 | * Helper routine which on success returns a non-zero 802.1Qaz user | |
1812 | * priority bitmap otherwise returns 0 to indicate the dcb_app was | |
1813 | * not found in APP list. | |
1814 | */ | |
1815 | u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app) | |
1816 | { | |
1817 | struct dcb_app_type *itr; | |
1818 | u8 prio = 0; | |
1819 | ||
1820 | spin_lock(&dcb_lock); | |
716b31ab TG |
1821 | if ((itr = dcb_app_lookup(app, dev->ifindex, 0))) |
1822 | prio |= 1 << itr->app.priority; | |
a364c8cf JF |
1823 | spin_unlock(&dcb_lock); |
1824 | ||
1825 | return prio; | |
1826 | } | |
1827 | EXPORT_SYMBOL(dcb_ieee_getapp_mask); | |
1828 | ||
b6db2174 JF |
1829 | /** |
1830 | * dcb_ieee_setapp - add IEEE dcb application data to app list | |
1831 | * | |
1832 | * This adds Application data to the list. Multiple application | |
1833 | * entries may exists for the same selector and protocol as long | |
1834 | * as the priorities are different. | |
1835 | */ | |
1836 | int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new) | |
1837 | { | |
b6db2174 JF |
1838 | struct dcb_app_type event; |
1839 | int err = 0; | |
1840 | ||
e290ed81 | 1841 | event.ifindex = dev->ifindex; |
b6db2174 | 1842 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1843 | if (dev->dcbnl_ops->getdcbx) |
1844 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
b6db2174 JF |
1845 | |
1846 | spin_lock(&dcb_lock); | |
1847 | /* Search for existing match and abort if found */ | |
716b31ab TG |
1848 | if (dcb_app_lookup(new, dev->ifindex, new->priority)) { |
1849 | err = -EEXIST; | |
1850 | goto out; | |
b6db2174 JF |
1851 | } |
1852 | ||
4e4f2f69 | 1853 | err = dcb_app_add(new, dev->ifindex); |
b6db2174 JF |
1854 | out: |
1855 | spin_unlock(&dcb_lock); | |
1856 | if (!err) | |
1857 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1858 | return err; | |
1859 | } | |
1860 | EXPORT_SYMBOL(dcb_ieee_setapp); | |
1861 | ||
f9ae7e4b JF |
1862 | /** |
1863 | * dcb_ieee_delapp - delete IEEE dcb application data from list | |
1864 | * | |
1865 | * This removes a matching APP data from the APP list | |
1866 | */ | |
1867 | int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del) | |
1868 | { | |
1869 | struct dcb_app_type *itr; | |
1870 | struct dcb_app_type event; | |
1871 | int err = -ENOENT; | |
1872 | ||
e290ed81 | 1873 | event.ifindex = dev->ifindex; |
f9ae7e4b | 1874 | memcpy(&event.app, del, sizeof(event.app)); |
6bd0e1cb JF |
1875 | if (dev->dcbnl_ops->getdcbx) |
1876 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
f9ae7e4b JF |
1877 | |
1878 | spin_lock(&dcb_lock); | |
1879 | /* Search for existing match and remove it. */ | |
716b31ab TG |
1880 | if ((itr = dcb_app_lookup(del, dev->ifindex, del->priority))) { |
1881 | list_del(&itr->list); | |
1882 | kfree(itr); | |
1883 | err = 0; | |
f9ae7e4b JF |
1884 | } |
1885 | ||
f9ae7e4b JF |
1886 | spin_unlock(&dcb_lock); |
1887 | if (!err) | |
1888 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1889 | return err; | |
1890 | } | |
1891 | EXPORT_SYMBOL(dcb_ieee_delapp); | |
1892 | ||
7c14c3f1 | 1893 | static void dcb_flushapp(void) |
9ab933ab JF |
1894 | { |
1895 | struct dcb_app_type *app; | |
2a8fe003 | 1896 | struct dcb_app_type *tmp; |
9ab933ab JF |
1897 | |
1898 | spin_lock(&dcb_lock); | |
2a8fe003 | 1899 | list_for_each_entry_safe(app, tmp, &dcb_app_list, list) { |
9ab933ab JF |
1900 | list_del(&app->list); |
1901 | kfree(app); | |
1902 | } | |
1903 | spin_unlock(&dcb_lock); | |
1904 | } | |
1905 | ||
2f90b865 AD |
1906 | static int __init dcbnl_init(void) |
1907 | { | |
9ab933ab JF |
1908 | INIT_LIST_HEAD(&dcb_app_list); |
1909 | ||
c7ac8679 GR |
1910 | rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, NULL); |
1911 | rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, NULL); | |
2f90b865 AD |
1912 | |
1913 | return 0; | |
1914 | } | |
1915 | module_init(dcbnl_init); | |
1916 | ||
1917 | static void __exit dcbnl_exit(void) | |
1918 | { | |
1919 | rtnl_unregister(PF_UNSPEC, RTM_GETDCB); | |
1920 | rtnl_unregister(PF_UNSPEC, RTM_SETDCB); | |
9ab933ab | 1921 | dcb_flushapp(); |
2f90b865 AD |
1922 | } |
1923 | module_exit(dcbnl_exit); |