Commit | Line | Data |
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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)}, |
c9368247 SM |
180 | [DCB_ATTR_IEEE_QCN] = {.len = sizeof(struct ieee_qcn)}, |
181 | [DCB_ATTR_IEEE_QCN_STATS] = {.len = sizeof(struct ieee_qcn_stats)}, | |
3e29027a JF |
182 | }; |
183 | ||
184 | static const struct nla_policy dcbnl_ieee_app[DCB_ATTR_IEEE_APP_MAX + 1] = { | |
185 | [DCB_ATTR_IEEE_APP] = {.len = sizeof(struct dcb_app)}, | |
186 | }; | |
187 | ||
ea45fe4e SR |
188 | /* DCB number of traffic classes nested attributes. */ |
189 | static const struct nla_policy dcbnl_featcfg_nest[DCB_FEATCFG_ATTR_MAX + 1] = { | |
190 | [DCB_FEATCFG_ATTR_ALL] = {.type = NLA_FLAG}, | |
191 | [DCB_FEATCFG_ATTR_PG] = {.type = NLA_U8}, | |
192 | [DCB_FEATCFG_ATTR_PFC] = {.type = NLA_U8}, | |
193 | [DCB_FEATCFG_ATTR_APP] = {.type = NLA_U8}, | |
194 | }; | |
195 | ||
9ab933ab JF |
196 | static LIST_HEAD(dcb_app_list); |
197 | static DEFINE_SPINLOCK(dcb_lock); | |
198 | ||
33a03aad TG |
199 | static struct sk_buff *dcbnl_newmsg(int type, u8 cmd, u32 port, u32 seq, |
200 | u32 flags, struct nlmsghdr **nlhp) | |
201 | { | |
202 | struct sk_buff *skb; | |
203 | struct dcbmsg *dcb; | |
204 | struct nlmsghdr *nlh; | |
205 | ||
206 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
207 | if (!skb) | |
208 | return NULL; | |
209 | ||
210 | nlh = nlmsg_put(skb, port, seq, type, sizeof(*dcb), flags); | |
b3908e22 | 211 | BUG_ON(!nlh); |
33a03aad TG |
212 | |
213 | dcb = nlmsg_data(nlh); | |
214 | dcb->dcb_family = AF_UNSPEC; | |
215 | dcb->cmd = cmd; | |
216 | dcb->dcb_pad = 0; | |
217 | ||
218 | if (nlhp) | |
219 | *nlhp = nlh; | |
220 | ||
221 | return skb; | |
222 | } | |
223 | ||
7be99413 TG |
224 | static int dcbnl_getstate(struct net_device *netdev, struct nlmsghdr *nlh, |
225 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 226 | { |
2f90b865 AD |
227 | /* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */ |
228 | if (!netdev->dcbnl_ops->getstate) | |
3d1f4869 | 229 | return -EOPNOTSUPP; |
2f90b865 | 230 | |
7be99413 TG |
231 | return nla_put_u8(skb, DCB_ATTR_STATE, |
232 | netdev->dcbnl_ops->getstate(netdev)); | |
2f90b865 AD |
233 | } |
234 | ||
7be99413 TG |
235 | static int dcbnl_getpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
236 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 237 | { |
2f90b865 AD |
238 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1], *nest; |
239 | u8 value; | |
3d1f4869 | 240 | int ret; |
2f90b865 AD |
241 | int i; |
242 | int getall = 0; | |
243 | ||
3d1f4869 TG |
244 | if (!tb[DCB_ATTR_PFC_CFG]) |
245 | return -EINVAL; | |
246 | ||
247 | if (!netdev->dcbnl_ops->getpfccfg) | |
248 | return -EOPNOTSUPP; | |
2f90b865 AD |
249 | |
250 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
251 | tb[DCB_ATTR_PFC_CFG], | |
252 | dcbnl_pfc_up_nest); | |
253 | if (ret) | |
3d1f4869 | 254 | return ret; |
2f90b865 | 255 | |
7be99413 | 256 | nest = nla_nest_start(skb, DCB_ATTR_PFC_CFG); |
2f90b865 | 257 | if (!nest) |
3d1f4869 | 258 | return -EMSGSIZE; |
2f90b865 AD |
259 | |
260 | if (data[DCB_PFC_UP_ATTR_ALL]) | |
261 | getall = 1; | |
262 | ||
263 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
264 | if (!getall && !data[i]) | |
265 | continue; | |
266 | ||
267 | netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, | |
268 | &value); | |
7be99413 | 269 | ret = nla_put_u8(skb, i, value); |
2f90b865 | 270 | if (ret) { |
7be99413 | 271 | nla_nest_cancel(skb, nest); |
3d1f4869 | 272 | return ret; |
2f90b865 AD |
273 | } |
274 | } | |
7be99413 | 275 | nla_nest_end(skb, nest); |
2f90b865 AD |
276 | |
277 | return 0; | |
2f90b865 AD |
278 | } |
279 | ||
7be99413 TG |
280 | static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlmsghdr *nlh, |
281 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 282 | { |
2f90b865 | 283 | u8 perm_addr[MAX_ADDR_LEN]; |
2f90b865 AD |
284 | |
285 | if (!netdev->dcbnl_ops->getpermhwaddr) | |
3d1f4869 | 286 | return -EOPNOTSUPP; |
2f90b865 | 287 | |
29cd8ae0 | 288 | memset(perm_addr, 0, sizeof(perm_addr)); |
2f90b865 AD |
289 | netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr); |
290 | ||
7be99413 | 291 | return nla_put(skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr), perm_addr); |
2f90b865 AD |
292 | } |
293 | ||
7be99413 TG |
294 | static int dcbnl_getcap(struct net_device *netdev, struct nlmsghdr *nlh, |
295 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
46132188 | 296 | { |
46132188 AD |
297 | struct nlattr *data[DCB_CAP_ATTR_MAX + 1], *nest; |
298 | u8 value; | |
3d1f4869 | 299 | int ret; |
46132188 AD |
300 | int i; |
301 | int getall = 0; | |
302 | ||
3d1f4869 TG |
303 | if (!tb[DCB_ATTR_CAP]) |
304 | return -EINVAL; | |
305 | ||
306 | if (!netdev->dcbnl_ops->getcap) | |
307 | return -EOPNOTSUPP; | |
46132188 AD |
308 | |
309 | ret = nla_parse_nested(data, DCB_CAP_ATTR_MAX, tb[DCB_ATTR_CAP], | |
310 | dcbnl_cap_nest); | |
311 | if (ret) | |
3d1f4869 | 312 | return ret; |
46132188 | 313 | |
7be99413 | 314 | nest = nla_nest_start(skb, DCB_ATTR_CAP); |
46132188 | 315 | if (!nest) |
3d1f4869 | 316 | return -EMSGSIZE; |
46132188 AD |
317 | |
318 | if (data[DCB_CAP_ATTR_ALL]) | |
319 | getall = 1; | |
320 | ||
321 | for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) { | |
322 | if (!getall && !data[i]) | |
323 | continue; | |
324 | ||
325 | if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) { | |
7be99413 | 326 | ret = nla_put_u8(skb, i, value); |
46132188 | 327 | if (ret) { |
7be99413 | 328 | nla_nest_cancel(skb, nest); |
3d1f4869 | 329 | return ret; |
46132188 AD |
330 | } |
331 | } | |
332 | } | |
7be99413 | 333 | nla_nest_end(skb, nest); |
46132188 AD |
334 | |
335 | return 0; | |
46132188 AD |
336 | } |
337 | ||
7be99413 TG |
338 | static int dcbnl_getnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
339 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 | 340 | { |
33dbabc4 AD |
341 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1], *nest; |
342 | u8 value; | |
3d1f4869 | 343 | int ret; |
33dbabc4 AD |
344 | int i; |
345 | int getall = 0; | |
346 | ||
3d1f4869 TG |
347 | if (!tb[DCB_ATTR_NUMTCS]) |
348 | return -EINVAL; | |
349 | ||
350 | if (!netdev->dcbnl_ops->getnumtcs) | |
351 | return -EOPNOTSUPP; | |
33dbabc4 AD |
352 | |
353 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
354 | dcbnl_numtcs_nest); | |
3d1f4869 TG |
355 | if (ret) |
356 | return ret; | |
33dbabc4 | 357 | |
7be99413 | 358 | nest = nla_nest_start(skb, DCB_ATTR_NUMTCS); |
3d1f4869 TG |
359 | if (!nest) |
360 | return -EMSGSIZE; | |
33dbabc4 AD |
361 | |
362 | if (data[DCB_NUMTCS_ATTR_ALL]) | |
363 | getall = 1; | |
364 | ||
365 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
366 | if (!getall && !data[i]) | |
367 | continue; | |
368 | ||
369 | ret = netdev->dcbnl_ops->getnumtcs(netdev, i, &value); | |
370 | if (!ret) { | |
7be99413 | 371 | ret = nla_put_u8(skb, i, value); |
33dbabc4 | 372 | if (ret) { |
7be99413 | 373 | nla_nest_cancel(skb, nest); |
3d1f4869 | 374 | return ret; |
33dbabc4 | 375 | } |
3d1f4869 TG |
376 | } else |
377 | return -EINVAL; | |
33dbabc4 | 378 | } |
7be99413 | 379 | nla_nest_end(skb, nest); |
33dbabc4 AD |
380 | |
381 | return 0; | |
33dbabc4 AD |
382 | } |
383 | ||
7be99413 TG |
384 | static int dcbnl_setnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
385 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 AD |
386 | { |
387 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1]; | |
3d1f4869 | 388 | int ret; |
33dbabc4 AD |
389 | u8 value; |
390 | int i; | |
391 | ||
3d1f4869 TG |
392 | if (!tb[DCB_ATTR_NUMTCS]) |
393 | return -EINVAL; | |
394 | ||
395 | if (!netdev->dcbnl_ops->setnumtcs) | |
396 | return -EOPNOTSUPP; | |
33dbabc4 AD |
397 | |
398 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
399 | dcbnl_numtcs_nest); | |
7be99413 | 400 | if (ret) |
3d1f4869 | 401 | return ret; |
33dbabc4 AD |
402 | |
403 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
404 | if (data[i] == NULL) | |
405 | continue; | |
406 | ||
407 | value = nla_get_u8(data[i]); | |
408 | ||
409 | ret = netdev->dcbnl_ops->setnumtcs(netdev, i, value); | |
33dbabc4 | 410 | if (ret) |
7be99413 | 411 | break; |
33dbabc4 AD |
412 | } |
413 | ||
7be99413 | 414 | return nla_put_u8(skb, DCB_ATTR_NUMTCS, !!ret); |
33dbabc4 AD |
415 | } |
416 | ||
7be99413 TG |
417 | static int dcbnl_getpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
418 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 419 | { |
0eb3aa9b | 420 | if (!netdev->dcbnl_ops->getpfcstate) |
3d1f4869 | 421 | return -EOPNOTSUPP; |
0eb3aa9b | 422 | |
7be99413 TG |
423 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, |
424 | netdev->dcbnl_ops->getpfcstate(netdev)); | |
0eb3aa9b AD |
425 | } |
426 | ||
7be99413 TG |
427 | static int dcbnl_setpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
428 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 429 | { |
0eb3aa9b AD |
430 | u8 value; |
431 | ||
3d1f4869 | 432 | if (!tb[DCB_ATTR_PFC_STATE]) |
7be99413 | 433 | return -EINVAL; |
0eb3aa9b | 434 | |
3d1f4869 TG |
435 | if (!netdev->dcbnl_ops->setpfcstate) |
436 | return -EOPNOTSUPP; | |
437 | ||
0eb3aa9b AD |
438 | value = nla_get_u8(tb[DCB_ATTR_PFC_STATE]); |
439 | ||
440 | netdev->dcbnl_ops->setpfcstate(netdev, value); | |
441 | ||
7be99413 | 442 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, 0); |
0eb3aa9b AD |
443 | } |
444 | ||
7be99413 TG |
445 | static int dcbnl_getapp(struct net_device *netdev, struct nlmsghdr *nlh, |
446 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 447 | { |
57949686 YZ |
448 | struct nlattr *app_nest; |
449 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
450 | u16 id; | |
451 | u8 up, idtype; | |
3d1f4869 | 452 | int ret; |
57949686 | 453 | |
3dce38a0 | 454 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 455 | return -EINVAL; |
57949686 YZ |
456 | |
457 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
458 | dcbnl_app_nest); | |
459 | if (ret) | |
3d1f4869 | 460 | return ret; |
57949686 | 461 | |
57949686 YZ |
462 | /* all must be non-null */ |
463 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
464 | (!app_tb[DCB_APP_ATTR_ID])) | |
3d1f4869 | 465 | return -EINVAL; |
57949686 YZ |
466 | |
467 | /* either by eth type or by socket number */ | |
468 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
469 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
470 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 471 | return -EINVAL; |
57949686 YZ |
472 | |
473 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
3dce38a0 JF |
474 | |
475 | if (netdev->dcbnl_ops->getapp) { | |
c2659479 AB |
476 | ret = netdev->dcbnl_ops->getapp(netdev, idtype, id); |
477 | if (ret < 0) | |
478 | return ret; | |
479 | else | |
480 | up = ret; | |
3dce38a0 JF |
481 | } else { |
482 | struct dcb_app app = { | |
483 | .selector = idtype, | |
484 | .protocol = id, | |
485 | }; | |
486 | up = dcb_getapp(netdev, &app); | |
487 | } | |
57949686 | 488 | |
7be99413 | 489 | app_nest = nla_nest_start(skb, DCB_ATTR_APP); |
d3337de5 | 490 | if (!app_nest) |
3d1f4869 | 491 | return -EMSGSIZE; |
d3337de5 | 492 | |
7be99413 | 493 | ret = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, idtype); |
57949686 YZ |
494 | if (ret) |
495 | goto out_cancel; | |
496 | ||
7be99413 | 497 | ret = nla_put_u16(skb, DCB_APP_ATTR_ID, id); |
57949686 YZ |
498 | if (ret) |
499 | goto out_cancel; | |
500 | ||
7be99413 | 501 | ret = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, up); |
57949686 YZ |
502 | if (ret) |
503 | goto out_cancel; | |
504 | ||
7be99413 | 505 | nla_nest_end(skb, app_nest); |
57949686 | 506 | |
3d1f4869 | 507 | return 0; |
57949686 YZ |
508 | |
509 | out_cancel: | |
7be99413 | 510 | nla_nest_cancel(skb, app_nest); |
57949686 YZ |
511 | return ret; |
512 | } | |
513 | ||
7be99413 TG |
514 | static int dcbnl_setapp(struct net_device *netdev, struct nlmsghdr *nlh, |
515 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 516 | { |
3d1f4869 | 517 | int ret; |
57949686 YZ |
518 | u16 id; |
519 | u8 up, idtype; | |
520 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
521 | ||
9ab933ab | 522 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 523 | return -EINVAL; |
57949686 YZ |
524 | |
525 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
526 | dcbnl_app_nest); | |
527 | if (ret) | |
3d1f4869 | 528 | return ret; |
57949686 | 529 | |
57949686 YZ |
530 | /* all must be non-null */ |
531 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
532 | (!app_tb[DCB_APP_ATTR_ID]) || | |
533 | (!app_tb[DCB_APP_ATTR_PRIORITY])) | |
3d1f4869 | 534 | return -EINVAL; |
57949686 YZ |
535 | |
536 | /* either by eth type or by socket number */ | |
537 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
538 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
539 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 540 | return -EINVAL; |
57949686 YZ |
541 | |
542 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
543 | up = nla_get_u8(app_tb[DCB_APP_ATTR_PRIORITY]); | |
544 | ||
9ab933ab | 545 | if (netdev->dcbnl_ops->setapp) { |
3d1f4869 | 546 | ret = netdev->dcbnl_ops->setapp(netdev, idtype, id, up); |
c2659479 AB |
547 | if (ret < 0) |
548 | return ret; | |
9ab933ab JF |
549 | } else { |
550 | struct dcb_app app; | |
551 | app.selector = idtype; | |
552 | app.protocol = id; | |
553 | app.priority = up; | |
3d1f4869 | 554 | ret = dcb_setapp(netdev, &app); |
9ab933ab JF |
555 | } |
556 | ||
7be99413 | 557 | ret = nla_put_u8(skb, DCB_ATTR_APP, ret); |
08157984 | 558 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SAPP, seq, 0); |
3d1f4869 | 559 | |
57949686 YZ |
560 | return ret; |
561 | } | |
562 | ||
7be99413 TG |
563 | static int __dcbnl_pg_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
564 | struct nlattr **tb, struct sk_buff *skb, int dir) | |
2f90b865 | 565 | { |
2f90b865 AD |
566 | struct nlattr *pg_nest, *param_nest, *data; |
567 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
568 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
569 | u8 prio, pgid, tc_pct, up_map; | |
3d1f4869 | 570 | int ret; |
2f90b865 AD |
571 | int getall = 0; |
572 | int i; | |
573 | ||
3d1f4869 TG |
574 | if (!tb[DCB_ATTR_PG_CFG]) |
575 | return -EINVAL; | |
576 | ||
577 | if (!netdev->dcbnl_ops->getpgtccfgtx || | |
2f90b865 AD |
578 | !netdev->dcbnl_ops->getpgtccfgrx || |
579 | !netdev->dcbnl_ops->getpgbwgcfgtx || | |
580 | !netdev->dcbnl_ops->getpgbwgcfgrx) | |
3d1f4869 | 581 | return -EOPNOTSUPP; |
2f90b865 AD |
582 | |
583 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, | |
584 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest); | |
2f90b865 | 585 | if (ret) |
3d1f4869 | 586 | return ret; |
2f90b865 | 587 | |
7be99413 | 588 | pg_nest = nla_nest_start(skb, DCB_ATTR_PG_CFG); |
2f90b865 | 589 | if (!pg_nest) |
3d1f4869 | 590 | return -EMSGSIZE; |
2f90b865 AD |
591 | |
592 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
593 | getall = 1; | |
594 | ||
595 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
596 | if (!getall && !pg_tb[i]) | |
597 | continue; | |
598 | ||
599 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
600 | data = pg_tb[DCB_PG_ATTR_TC_ALL]; | |
601 | else | |
602 | data = pg_tb[i]; | |
603 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
604 | data, dcbnl_tc_param_nest); | |
605 | if (ret) | |
606 | goto err_pg; | |
607 | ||
7be99413 | 608 | param_nest = nla_nest_start(skb, i); |
2f90b865 AD |
609 | if (!param_nest) |
610 | goto err_pg; | |
611 | ||
612 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
613 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
614 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
615 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
616 | ||
617 | if (dir) { | |
618 | /* Rx */ | |
619 | netdev->dcbnl_ops->getpgtccfgrx(netdev, | |
620 | i - DCB_PG_ATTR_TC_0, &prio, | |
621 | &pgid, &tc_pct, &up_map); | |
622 | } else { | |
623 | /* Tx */ | |
624 | netdev->dcbnl_ops->getpgtccfgtx(netdev, | |
625 | i - DCB_PG_ATTR_TC_0, &prio, | |
626 | &pgid, &tc_pct, &up_map); | |
627 | } | |
628 | ||
629 | if (param_tb[DCB_TC_ATTR_PARAM_PGID] || | |
630 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 631 | ret = nla_put_u8(skb, |
2f90b865 AD |
632 | DCB_TC_ATTR_PARAM_PGID, pgid); |
633 | if (ret) | |
634 | goto err_param; | |
635 | } | |
636 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING] || | |
637 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 638 | ret = nla_put_u8(skb, |
2f90b865 AD |
639 | DCB_TC_ATTR_PARAM_UP_MAPPING, up_map); |
640 | if (ret) | |
641 | goto err_param; | |
642 | } | |
643 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO] || | |
644 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 645 | ret = nla_put_u8(skb, |
2f90b865 AD |
646 | DCB_TC_ATTR_PARAM_STRICT_PRIO, prio); |
647 | if (ret) | |
648 | goto err_param; | |
649 | } | |
650 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT] || | |
651 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 652 | ret = nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, |
2f90b865 AD |
653 | tc_pct); |
654 | if (ret) | |
655 | goto err_param; | |
656 | } | |
7be99413 | 657 | nla_nest_end(skb, param_nest); |
2f90b865 AD |
658 | } |
659 | ||
660 | if (pg_tb[DCB_PG_ATTR_BW_ID_ALL]) | |
661 | getall = 1; | |
662 | else | |
663 | getall = 0; | |
664 | ||
665 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
666 | if (!getall && !pg_tb[i]) | |
667 | continue; | |
668 | ||
669 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
670 | ||
671 | if (dir) { | |
672 | /* Rx */ | |
673 | netdev->dcbnl_ops->getpgbwgcfgrx(netdev, | |
674 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
675 | } else { | |
676 | /* Tx */ | |
677 | netdev->dcbnl_ops->getpgbwgcfgtx(netdev, | |
678 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
679 | } | |
7be99413 | 680 | ret = nla_put_u8(skb, i, tc_pct); |
2f90b865 AD |
681 | if (ret) |
682 | goto err_pg; | |
683 | } | |
684 | ||
7be99413 | 685 | nla_nest_end(skb, pg_nest); |
2f90b865 AD |
686 | |
687 | return 0; | |
688 | ||
689 | err_param: | |
7be99413 | 690 | nla_nest_cancel(skb, param_nest); |
2f90b865 | 691 | err_pg: |
7be99413 | 692 | nla_nest_cancel(skb, pg_nest); |
3d1f4869 TG |
693 | |
694 | return -EMSGSIZE; | |
2f90b865 AD |
695 | } |
696 | ||
7be99413 TG |
697 | static int dcbnl_pgtx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
698 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 699 | { |
7be99413 | 700 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 0); |
2f90b865 AD |
701 | } |
702 | ||
7be99413 TG |
703 | static int dcbnl_pgrx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
704 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 705 | { |
7be99413 | 706 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 1); |
2f90b865 AD |
707 | } |
708 | ||
7be99413 TG |
709 | static int dcbnl_setstate(struct net_device *netdev, struct nlmsghdr *nlh, |
710 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 711 | { |
2f90b865 AD |
712 | u8 value; |
713 | ||
3d1f4869 | 714 | if (!tb[DCB_ATTR_STATE]) |
7be99413 | 715 | return -EINVAL; |
2f90b865 | 716 | |
3d1f4869 TG |
717 | if (!netdev->dcbnl_ops->setstate) |
718 | return -EOPNOTSUPP; | |
719 | ||
2f90b865 AD |
720 | value = nla_get_u8(tb[DCB_ATTR_STATE]); |
721 | ||
7be99413 TG |
722 | return nla_put_u8(skb, DCB_ATTR_STATE, |
723 | netdev->dcbnl_ops->setstate(netdev, value)); | |
2f90b865 AD |
724 | } |
725 | ||
7be99413 TG |
726 | static int dcbnl_setpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
727 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 AD |
728 | { |
729 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1]; | |
730 | int i; | |
3d1f4869 | 731 | int ret; |
2f90b865 AD |
732 | u8 value; |
733 | ||
3d1f4869 TG |
734 | if (!tb[DCB_ATTR_PFC_CFG]) |
735 | return -EINVAL; | |
736 | ||
737 | if (!netdev->dcbnl_ops->setpfccfg) | |
738 | return -EOPNOTSUPP; | |
2f90b865 AD |
739 | |
740 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
741 | tb[DCB_ATTR_PFC_CFG], | |
742 | dcbnl_pfc_up_nest); | |
743 | if (ret) | |
3d1f4869 | 744 | return ret; |
2f90b865 AD |
745 | |
746 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
747 | if (data[i] == NULL) | |
748 | continue; | |
749 | value = nla_get_u8(data[i]); | |
750 | netdev->dcbnl_ops->setpfccfg(netdev, | |
751 | data[i]->nla_type - DCB_PFC_UP_ATTR_0, value); | |
752 | } | |
753 | ||
7be99413 | 754 | return nla_put_u8(skb, DCB_ATTR_PFC_CFG, 0); |
2f90b865 AD |
755 | } |
756 | ||
7be99413 TG |
757 | static int dcbnl_setall(struct net_device *netdev, struct nlmsghdr *nlh, |
758 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 759 | { |
3d1f4869 | 760 | int ret; |
2f90b865 | 761 | |
3d1f4869 TG |
762 | if (!tb[DCB_ATTR_SET_ALL]) |
763 | return -EINVAL; | |
764 | ||
765 | if (!netdev->dcbnl_ops->setall) | |
766 | return -EOPNOTSUPP; | |
2f90b865 | 767 | |
7be99413 TG |
768 | ret = nla_put_u8(skb, DCB_ATTR_SET_ALL, |
769 | netdev->dcbnl_ops->setall(netdev)); | |
08157984 | 770 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SET_ALL, seq, 0); |
2f90b865 AD |
771 | |
772 | return ret; | |
773 | } | |
774 | ||
7be99413 TG |
775 | static int __dcbnl_pg_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
776 | u32 seq, struct nlattr **tb, struct sk_buff *skb, | |
777 | int dir) | |
2f90b865 AD |
778 | { |
779 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
780 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
3d1f4869 | 781 | int ret; |
2f90b865 AD |
782 | int i; |
783 | u8 pgid; | |
784 | u8 up_map; | |
785 | u8 prio; | |
786 | u8 tc_pct; | |
787 | ||
3d1f4869 TG |
788 | if (!tb[DCB_ATTR_PG_CFG]) |
789 | return -EINVAL; | |
790 | ||
791 | if (!netdev->dcbnl_ops->setpgtccfgtx || | |
2f90b865 AD |
792 | !netdev->dcbnl_ops->setpgtccfgrx || |
793 | !netdev->dcbnl_ops->setpgbwgcfgtx || | |
794 | !netdev->dcbnl_ops->setpgbwgcfgrx) | |
3d1f4869 | 795 | return -EOPNOTSUPP; |
2f90b865 AD |
796 | |
797 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, | |
798 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest); | |
799 | if (ret) | |
3d1f4869 | 800 | return ret; |
2f90b865 AD |
801 | |
802 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
803 | if (!pg_tb[i]) | |
804 | continue; | |
805 | ||
806 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
807 | pg_tb[i], dcbnl_tc_param_nest); | |
808 | if (ret) | |
3d1f4869 | 809 | return ret; |
2f90b865 AD |
810 | |
811 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
812 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
813 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
814 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
815 | ||
816 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]) | |
817 | prio = | |
818 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]); | |
819 | ||
820 | if (param_tb[DCB_TC_ATTR_PARAM_PGID]) | |
821 | pgid = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_PGID]); | |
822 | ||
823 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT]) | |
824 | tc_pct = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_BW_PCT]); | |
825 | ||
826 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]) | |
827 | up_map = | |
828 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]); | |
829 | ||
830 | /* dir: Tx = 0, Rx = 1 */ | |
831 | if (dir) { | |
832 | /* Rx */ | |
833 | netdev->dcbnl_ops->setpgtccfgrx(netdev, | |
834 | i - DCB_PG_ATTR_TC_0, | |
835 | prio, pgid, tc_pct, up_map); | |
836 | } else { | |
837 | /* Tx */ | |
838 | netdev->dcbnl_ops->setpgtccfgtx(netdev, | |
839 | i - DCB_PG_ATTR_TC_0, | |
840 | prio, pgid, tc_pct, up_map); | |
841 | } | |
842 | } | |
843 | ||
844 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
845 | if (!pg_tb[i]) | |
846 | continue; | |
847 | ||
848 | tc_pct = nla_get_u8(pg_tb[i]); | |
849 | ||
850 | /* dir: Tx = 0, Rx = 1 */ | |
851 | if (dir) { | |
852 | /* Rx */ | |
853 | netdev->dcbnl_ops->setpgbwgcfgrx(netdev, | |
854 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
855 | } else { | |
856 | /* Tx */ | |
857 | netdev->dcbnl_ops->setpgbwgcfgtx(netdev, | |
858 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
859 | } | |
860 | } | |
861 | ||
bb1dfefd | 862 | return nla_put_u8(skb, DCB_ATTR_PG_CFG, 0); |
2f90b865 AD |
863 | } |
864 | ||
7be99413 TG |
865 | static int dcbnl_pgtx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
866 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 867 | { |
7be99413 | 868 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 0); |
2f90b865 AD |
869 | } |
870 | ||
7be99413 TG |
871 | static int dcbnl_pgrx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
872 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 873 | { |
7be99413 | 874 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 1); |
2f90b865 AD |
875 | } |
876 | ||
7be99413 TG |
877 | static int dcbnl_bcn_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
878 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 | 879 | { |
859ee3c4 AD |
880 | struct nlattr *bcn_nest; |
881 | struct nlattr *bcn_tb[DCB_BCN_ATTR_MAX + 1]; | |
882 | u8 value_byte; | |
883 | u32 value_integer; | |
3d1f4869 | 884 | int ret; |
859ee3c4 AD |
885 | bool getall = false; |
886 | int i; | |
887 | ||
3d1f4869 TG |
888 | if (!tb[DCB_ATTR_BCN]) |
889 | return -EINVAL; | |
890 | ||
891 | if (!netdev->dcbnl_ops->getbcnrp || | |
859ee3c4 | 892 | !netdev->dcbnl_ops->getbcncfg) |
3d1f4869 | 893 | return -EOPNOTSUPP; |
859ee3c4 AD |
894 | |
895 | ret = nla_parse_nested(bcn_tb, DCB_BCN_ATTR_MAX, | |
896 | tb[DCB_ATTR_BCN], dcbnl_bcn_nest); | |
859ee3c4 | 897 | if (ret) |
3d1f4869 | 898 | return ret; |
859ee3c4 | 899 | |
7be99413 | 900 | bcn_nest = nla_nest_start(skb, DCB_ATTR_BCN); |
859ee3c4 | 901 | if (!bcn_nest) |
3d1f4869 | 902 | return -EMSGSIZE; |
859ee3c4 AD |
903 | |
904 | if (bcn_tb[DCB_BCN_ATTR_ALL]) | |
905 | getall = true; | |
906 | ||
907 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
908 | if (!getall && !bcn_tb[i]) | |
909 | continue; | |
910 | ||
911 | netdev->dcbnl_ops->getbcnrp(netdev, i - DCB_BCN_ATTR_RP_0, | |
912 | &value_byte); | |
7be99413 | 913 | ret = nla_put_u8(skb, i, value_byte); |
859ee3c4 AD |
914 | if (ret) |
915 | goto err_bcn; | |
916 | } | |
917 | ||
f4314e81 | 918 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
919 | if (!getall && !bcn_tb[i]) |
920 | continue; | |
921 | ||
922 | netdev->dcbnl_ops->getbcncfg(netdev, i, | |
923 | &value_integer); | |
7be99413 | 924 | ret = nla_put_u32(skb, i, value_integer); |
859ee3c4 AD |
925 | if (ret) |
926 | goto err_bcn; | |
927 | } | |
928 | ||
7be99413 | 929 | nla_nest_end(skb, bcn_nest); |
859ee3c4 AD |
930 | |
931 | return 0; | |
932 | ||
933 | err_bcn: | |
7be99413 | 934 | nla_nest_cancel(skb, bcn_nest); |
859ee3c4 AD |
935 | return ret; |
936 | } | |
937 | ||
7be99413 TG |
938 | static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
939 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 AD |
940 | { |
941 | struct nlattr *data[DCB_BCN_ATTR_MAX + 1]; | |
942 | int i; | |
3d1f4869 | 943 | int ret; |
859ee3c4 AD |
944 | u8 value_byte; |
945 | u32 value_int; | |
946 | ||
3d1f4869 TG |
947 | if (!tb[DCB_ATTR_BCN]) |
948 | return -EINVAL; | |
949 | ||
950 | if (!netdev->dcbnl_ops->setbcncfg || | |
f64f9e71 | 951 | !netdev->dcbnl_ops->setbcnrp) |
3d1f4869 | 952 | return -EOPNOTSUPP; |
859ee3c4 AD |
953 | |
954 | ret = nla_parse_nested(data, DCB_BCN_ATTR_MAX, | |
955 | tb[DCB_ATTR_BCN], | |
956 | dcbnl_pfc_up_nest); | |
957 | if (ret) | |
3d1f4869 | 958 | return ret; |
859ee3c4 AD |
959 | |
960 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
961 | if (data[i] == NULL) | |
962 | continue; | |
963 | value_byte = nla_get_u8(data[i]); | |
964 | netdev->dcbnl_ops->setbcnrp(netdev, | |
965 | data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte); | |
966 | } | |
967 | ||
f4314e81 | 968 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
969 | if (data[i] == NULL) |
970 | continue; | |
971 | value_int = nla_get_u32(data[i]); | |
972 | netdev->dcbnl_ops->setbcncfg(netdev, | |
973 | i, value_int); | |
974 | } | |
975 | ||
3d1f4869 | 976 | return nla_put_u8(skb, DCB_ATTR_BCN, 0); |
859ee3c4 AD |
977 | } |
978 | ||
dc6ed1df SR |
979 | static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb, |
980 | int app_nested_type, int app_info_type, | |
981 | int app_entry_type) | |
eed84713 SR |
982 | { |
983 | struct dcb_peer_app_info info; | |
984 | struct dcb_app *table = NULL; | |
985 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
986 | u16 app_count; | |
987 | int err; | |
988 | ||
989 | ||
990 | /** | |
991 | * retrieve the peer app configuration form the driver. If the driver | |
992 | * handlers fail exit without doing anything | |
993 | */ | |
994 | err = ops->peer_getappinfo(netdev, &info, &app_count); | |
995 | if (!err && app_count) { | |
996 | table = kmalloc(sizeof(struct dcb_app) * app_count, GFP_KERNEL); | |
997 | if (!table) | |
998 | return -ENOMEM; | |
999 | ||
1000 | err = ops->peer_getapptable(netdev, table); | |
1001 | } | |
1002 | ||
1003 | if (!err) { | |
1004 | u16 i; | |
1005 | struct nlattr *app; | |
1006 | ||
1007 | /** | |
1008 | * build the message, from here on the only possible failure | |
1009 | * is due to the skb size | |
1010 | */ | |
1011 | err = -EMSGSIZE; | |
1012 | ||
dc6ed1df | 1013 | app = nla_nest_start(skb, app_nested_type); |
eed84713 SR |
1014 | if (!app) |
1015 | goto nla_put_failure; | |
1016 | ||
1eb4c977 DM |
1017 | if (app_info_type && |
1018 | nla_put(skb, app_info_type, sizeof(info), &info)) | |
1019 | goto nla_put_failure; | |
eed84713 | 1020 | |
1eb4c977 DM |
1021 | for (i = 0; i < app_count; i++) { |
1022 | if (nla_put(skb, app_entry_type, sizeof(struct dcb_app), | |
1023 | &table[i])) | |
1024 | goto nla_put_failure; | |
1025 | } | |
eed84713 SR |
1026 | nla_nest_end(skb, app); |
1027 | } | |
1028 | err = 0; | |
1029 | ||
1030 | nla_put_failure: | |
1031 | kfree(table); | |
1032 | return err; | |
1033 | } | |
3e29027a | 1034 | |
c9368247 | 1035 | /* Handle IEEE 802.1Qaz/802.1Qau/802.1Qbb GET commands. */ |
314b4778 | 1036 | static int dcbnl_ieee_fill(struct sk_buff *skb, struct net_device *netdev) |
3e29027a | 1037 | { |
9ab933ab JF |
1038 | struct nlattr *ieee, *app; |
1039 | struct dcb_app_type *itr; | |
3e29027a | 1040 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
c7797baf | 1041 | int dcbx; |
3d1f4869 | 1042 | int err; |
3e29027a | 1043 | |
1eb4c977 | 1044 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
3d1f4869 TG |
1045 | return -EMSGSIZE; |
1046 | ||
3e29027a JF |
1047 | ieee = nla_nest_start(skb, DCB_ATTR_IEEE); |
1048 | if (!ieee) | |
3d1f4869 | 1049 | return -EMSGSIZE; |
3e29027a JF |
1050 | |
1051 | if (ops->ieee_getets) { | |
1052 | struct ieee_ets ets; | |
29cd8ae0 | 1053 | memset(&ets, 0, sizeof(ets)); |
3e29027a | 1054 | err = ops->ieee_getets(netdev, &ets); |
1eb4c977 DM |
1055 | if (!err && |
1056 | nla_put(skb, DCB_ATTR_IEEE_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1057 | return -EMSGSIZE; |
3e29027a JF |
1058 | } |
1059 | ||
08f10aff AV |
1060 | if (ops->ieee_getmaxrate) { |
1061 | struct ieee_maxrate maxrate; | |
29cd8ae0 | 1062 | memset(&maxrate, 0, sizeof(maxrate)); |
08f10aff AV |
1063 | err = ops->ieee_getmaxrate(netdev, &maxrate); |
1064 | if (!err) { | |
1065 | err = nla_put(skb, DCB_ATTR_IEEE_MAXRATE, | |
1066 | sizeof(maxrate), &maxrate); | |
1067 | if (err) | |
3d1f4869 | 1068 | return -EMSGSIZE; |
08f10aff AV |
1069 | } |
1070 | } | |
1071 | ||
c9368247 SM |
1072 | if (ops->ieee_getqcn) { |
1073 | struct ieee_qcn qcn; | |
1074 | ||
1075 | memset(&qcn, 0, sizeof(qcn)); | |
1076 | err = ops->ieee_getqcn(netdev, &qcn); | |
1077 | if (!err) { | |
1078 | err = nla_put(skb, DCB_ATTR_IEEE_QCN, | |
1079 | sizeof(qcn), &qcn); | |
1080 | if (err) | |
1081 | return -EMSGSIZE; | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | if (ops->ieee_getqcnstats) { | |
1086 | struct ieee_qcn_stats qcn_stats; | |
1087 | ||
1088 | memset(&qcn_stats, 0, sizeof(qcn_stats)); | |
1089 | err = ops->ieee_getqcnstats(netdev, &qcn_stats); | |
1090 | if (!err) { | |
1091 | err = nla_put(skb, DCB_ATTR_IEEE_QCN_STATS, | |
1092 | sizeof(qcn_stats), &qcn_stats); | |
1093 | if (err) | |
1094 | return -EMSGSIZE; | |
1095 | } | |
1096 | } | |
1097 | ||
3e29027a JF |
1098 | if (ops->ieee_getpfc) { |
1099 | struct ieee_pfc pfc; | |
29cd8ae0 | 1100 | memset(&pfc, 0, sizeof(pfc)); |
3e29027a | 1101 | err = ops->ieee_getpfc(netdev, &pfc); |
1eb4c977 DM |
1102 | if (!err && |
1103 | nla_put(skb, DCB_ATTR_IEEE_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1104 | return -EMSGSIZE; |
3e29027a JF |
1105 | } |
1106 | ||
9ab933ab JF |
1107 | app = nla_nest_start(skb, DCB_ATTR_IEEE_APP_TABLE); |
1108 | if (!app) | |
3d1f4869 | 1109 | return -EMSGSIZE; |
9ab933ab | 1110 | |
52cff74e | 1111 | spin_lock_bh(&dcb_lock); |
9ab933ab | 1112 | list_for_each_entry(itr, &dcb_app_list, list) { |
e290ed81 | 1113 | if (itr->ifindex == netdev->ifindex) { |
70bfa2d2 DC |
1114 | err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app), |
1115 | &itr->app); | |
1116 | if (err) { | |
52cff74e | 1117 | spin_unlock_bh(&dcb_lock); |
3d1f4869 | 1118 | return -EMSGSIZE; |
70bfa2d2 DC |
1119 | } |
1120 | } | |
9ab933ab | 1121 | } |
c7797baf JF |
1122 | |
1123 | if (netdev->dcbnl_ops->getdcbx) | |
1124 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1125 | else | |
1126 | dcbx = -EOPNOTSUPP; | |
1127 | ||
52cff74e | 1128 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1129 | nla_nest_end(skb, app); |
1130 | ||
eed84713 SR |
1131 | /* get peer info if available */ |
1132 | if (ops->ieee_peer_getets) { | |
1133 | struct ieee_ets ets; | |
29cd8ae0 | 1134 | memset(&ets, 0, sizeof(ets)); |
eed84713 | 1135 | err = ops->ieee_peer_getets(netdev, &ets); |
1eb4c977 DM |
1136 | if (!err && |
1137 | nla_put(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1138 | return -EMSGSIZE; |
eed84713 SR |
1139 | } |
1140 | ||
1141 | if (ops->ieee_peer_getpfc) { | |
1142 | struct ieee_pfc pfc; | |
29cd8ae0 | 1143 | memset(&pfc, 0, sizeof(pfc)); |
eed84713 | 1144 | err = ops->ieee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1145 | if (!err && |
1146 | nla_put(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1147 | return -EMSGSIZE; |
eed84713 SR |
1148 | } |
1149 | ||
1150 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
dc6ed1df SR |
1151 | err = dcbnl_build_peer_app(netdev, skb, |
1152 | DCB_ATTR_IEEE_PEER_APP, | |
1153 | DCB_ATTR_IEEE_APP_UNSPEC, | |
1154 | DCB_ATTR_IEEE_APP); | |
eed84713 | 1155 | if (err) |
3d1f4869 | 1156 | return -EMSGSIZE; |
eed84713 SR |
1157 | } |
1158 | ||
3e29027a | 1159 | nla_nest_end(skb, ieee); |
c7797baf JF |
1160 | if (dcbx >= 0) { |
1161 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1162 | if (err) | |
3d1f4869 | 1163 | return -EMSGSIZE; |
c7797baf | 1164 | } |
3e29027a | 1165 | |
314b4778 | 1166 | return 0; |
3e29027a JF |
1167 | } |
1168 | ||
5b7f7626 SR |
1169 | static int dcbnl_cee_pg_fill(struct sk_buff *skb, struct net_device *dev, |
1170 | int dir) | |
1171 | { | |
1172 | u8 pgid, up_map, prio, tc_pct; | |
1173 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; | |
1174 | int i = dir ? DCB_ATTR_CEE_TX_PG : DCB_ATTR_CEE_RX_PG; | |
1175 | struct nlattr *pg = nla_nest_start(skb, i); | |
1176 | ||
1177 | if (!pg) | |
3d1f4869 | 1178 | return -EMSGSIZE; |
5b7f7626 SR |
1179 | |
1180 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
1181 | struct nlattr *tc_nest = nla_nest_start(skb, i); | |
1182 | ||
1183 | if (!tc_nest) | |
3d1f4869 | 1184 | return -EMSGSIZE; |
5b7f7626 SR |
1185 | |
1186 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
1187 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
1188 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1189 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
1190 | ||
1191 | if (!dir) | |
1192 | ops->getpgtccfgrx(dev, i - DCB_PG_ATTR_TC_0, | |
1193 | &prio, &pgid, &tc_pct, &up_map); | |
1194 | else | |
1195 | ops->getpgtccfgtx(dev, i - DCB_PG_ATTR_TC_0, | |
1196 | &prio, &pgid, &tc_pct, &up_map); | |
1197 | ||
1eb4c977 DM |
1198 | if (nla_put_u8(skb, DCB_TC_ATTR_PARAM_PGID, pgid) || |
1199 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_UP_MAPPING, up_map) || | |
1200 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_STRICT_PRIO, prio) || | |
1201 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, tc_pct)) | |
3d1f4869 | 1202 | return -EMSGSIZE; |
5b7f7626 SR |
1203 | nla_nest_end(skb, tc_nest); |
1204 | } | |
1205 | ||
1206 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
1207 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1208 | ||
1209 | if (!dir) | |
1210 | ops->getpgbwgcfgrx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1211 | &tc_pct); | |
1212 | else | |
1213 | ops->getpgbwgcfgtx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1214 | &tc_pct); | |
1eb4c977 | 1215 | if (nla_put_u8(skb, i, tc_pct)) |
3d1f4869 | 1216 | return -EMSGSIZE; |
5b7f7626 SR |
1217 | } |
1218 | nla_nest_end(skb, pg); | |
1219 | return 0; | |
5b7f7626 SR |
1220 | } |
1221 | ||
1222 | static int dcbnl_cee_fill(struct sk_buff *skb, struct net_device *netdev) | |
1223 | { | |
1224 | struct nlattr *cee, *app; | |
1225 | struct dcb_app_type *itr; | |
1226 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1227 | int dcbx, i, err = -EMSGSIZE; | |
1228 | u8 value; | |
1229 | ||
1eb4c977 DM |
1230 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
1231 | goto nla_put_failure; | |
5b7f7626 SR |
1232 | cee = nla_nest_start(skb, DCB_ATTR_CEE); |
1233 | if (!cee) | |
1234 | goto nla_put_failure; | |
1235 | ||
1236 | /* local pg */ | |
1237 | if (ops->getpgtccfgtx && ops->getpgbwgcfgtx) { | |
1238 | err = dcbnl_cee_pg_fill(skb, netdev, 1); | |
1239 | if (err) | |
1240 | goto nla_put_failure; | |
1241 | } | |
1242 | ||
1243 | if (ops->getpgtccfgrx && ops->getpgbwgcfgrx) { | |
1244 | err = dcbnl_cee_pg_fill(skb, netdev, 0); | |
1245 | if (err) | |
1246 | goto nla_put_failure; | |
1247 | } | |
1248 | ||
1249 | /* local pfc */ | |
1250 | if (ops->getpfccfg) { | |
1251 | struct nlattr *pfc_nest = nla_nest_start(skb, DCB_ATTR_CEE_PFC); | |
1252 | ||
1253 | if (!pfc_nest) | |
1254 | goto nla_put_failure; | |
1255 | ||
1256 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
1257 | ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, &value); | |
1eb4c977 DM |
1258 | if (nla_put_u8(skb, i, value)) |
1259 | goto nla_put_failure; | |
5b7f7626 SR |
1260 | } |
1261 | nla_nest_end(skb, pfc_nest); | |
1262 | } | |
1263 | ||
1264 | /* local app */ | |
52cff74e | 1265 | spin_lock_bh(&dcb_lock); |
5b7f7626 SR |
1266 | app = nla_nest_start(skb, DCB_ATTR_CEE_APP_TABLE); |
1267 | if (!app) | |
40f5d72a | 1268 | goto dcb_unlock; |
5b7f7626 SR |
1269 | |
1270 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1271 | if (itr->ifindex == netdev->ifindex) { |
5b7f7626 SR |
1272 | struct nlattr *app_nest = nla_nest_start(skb, |
1273 | DCB_ATTR_APP); | |
1274 | if (!app_nest) | |
1275 | goto dcb_unlock; | |
1276 | ||
1277 | err = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, | |
1278 | itr->app.selector); | |
1279 | if (err) | |
1280 | goto dcb_unlock; | |
1281 | ||
1282 | err = nla_put_u16(skb, DCB_APP_ATTR_ID, | |
1283 | itr->app.protocol); | |
1284 | if (err) | |
1285 | goto dcb_unlock; | |
1286 | ||
1287 | err = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, | |
1288 | itr->app.priority); | |
1289 | if (err) | |
1290 | goto dcb_unlock; | |
1291 | ||
1292 | nla_nest_end(skb, app_nest); | |
1293 | } | |
1294 | } | |
1295 | nla_nest_end(skb, app); | |
1296 | ||
1297 | if (netdev->dcbnl_ops->getdcbx) | |
1298 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1299 | else | |
1300 | dcbx = -EOPNOTSUPP; | |
1301 | ||
52cff74e | 1302 | spin_unlock_bh(&dcb_lock); |
5b7f7626 SR |
1303 | |
1304 | /* features flags */ | |
1305 | if (ops->getfeatcfg) { | |
1306 | struct nlattr *feat = nla_nest_start(skb, DCB_ATTR_CEE_FEAT); | |
1307 | if (!feat) | |
1308 | goto nla_put_failure; | |
1309 | ||
1310 | for (i = DCB_FEATCFG_ATTR_ALL + 1; i <= DCB_FEATCFG_ATTR_MAX; | |
1311 | i++) | |
1eb4c977 DM |
1312 | if (!ops->getfeatcfg(netdev, i, &value) && |
1313 | nla_put_u8(skb, i, value)) | |
1314 | goto nla_put_failure; | |
5b7f7626 SR |
1315 | |
1316 | nla_nest_end(skb, feat); | |
1317 | } | |
1318 | ||
1319 | /* peer info if available */ | |
1320 | if (ops->cee_peer_getpg) { | |
1321 | struct cee_pg pg; | |
29cd8ae0 | 1322 | memset(&pg, 0, sizeof(pg)); |
5b7f7626 | 1323 | err = ops->cee_peer_getpg(netdev, &pg); |
1eb4c977 DM |
1324 | if (!err && |
1325 | nla_put(skb, DCB_ATTR_CEE_PEER_PG, sizeof(pg), &pg)) | |
1326 | goto nla_put_failure; | |
5b7f7626 SR |
1327 | } |
1328 | ||
1329 | if (ops->cee_peer_getpfc) { | |
1330 | struct cee_pfc pfc; | |
29cd8ae0 | 1331 | memset(&pfc, 0, sizeof(pfc)); |
5b7f7626 | 1332 | err = ops->cee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1333 | if (!err && |
1334 | nla_put(skb, DCB_ATTR_CEE_PEER_PFC, sizeof(pfc), &pfc)) | |
1335 | goto nla_put_failure; | |
5b7f7626 SR |
1336 | } |
1337 | ||
1338 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
1339 | err = dcbnl_build_peer_app(netdev, skb, | |
1340 | DCB_ATTR_CEE_PEER_APP_TABLE, | |
1341 | DCB_ATTR_CEE_PEER_APP_INFO, | |
1342 | DCB_ATTR_CEE_PEER_APP); | |
1343 | if (err) | |
1344 | goto nla_put_failure; | |
1345 | } | |
1346 | nla_nest_end(skb, cee); | |
1347 | ||
1348 | /* DCBX state */ | |
1349 | if (dcbx >= 0) { | |
1350 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1351 | if (err) | |
1352 | goto nla_put_failure; | |
1353 | } | |
1354 | return 0; | |
1355 | ||
1356 | dcb_unlock: | |
52cff74e | 1357 | spin_unlock_bh(&dcb_lock); |
5b7f7626 SR |
1358 | nla_put_failure: |
1359 | return err; | |
1360 | } | |
1361 | ||
1362 | static int dcbnl_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1363 | u32 seq, u32 portid, int dcbx_ver) |
314b4778 JF |
1364 | { |
1365 | struct net *net = dev_net(dev); | |
1366 | struct sk_buff *skb; | |
1367 | struct nlmsghdr *nlh; | |
314b4778 JF |
1368 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; |
1369 | int err; | |
1370 | ||
1371 | if (!ops) | |
1372 | return -EOPNOTSUPP; | |
1373 | ||
15e47304 | 1374 | skb = dcbnl_newmsg(event, cmd, portid, seq, 0, &nlh); |
314b4778 JF |
1375 | if (!skb) |
1376 | return -ENOBUFS; | |
1377 | ||
5b7f7626 SR |
1378 | if (dcbx_ver == DCB_CAP_DCBX_VER_IEEE) |
1379 | err = dcbnl_ieee_fill(skb, dev); | |
1380 | else | |
1381 | err = dcbnl_cee_fill(skb, dev); | |
1382 | ||
314b4778 JF |
1383 | if (err < 0) { |
1384 | /* Report error to broadcast listeners */ | |
ab6d4707 | 1385 | nlmsg_free(skb); |
314b4778 JF |
1386 | rtnl_set_sk_err(net, RTNLGRP_DCB, err); |
1387 | } else { | |
1388 | /* End nlmsg and notify broadcast listeners */ | |
1389 | nlmsg_end(skb, nlh); | |
1390 | rtnl_notify(skb, net, 0, RTNLGRP_DCB, NULL, GFP_KERNEL); | |
1391 | } | |
1392 | ||
1393 | return err; | |
1394 | } | |
5b7f7626 SR |
1395 | |
1396 | int dcbnl_ieee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1397 | u32 seq, u32 portid) |
5b7f7626 | 1398 | { |
15e47304 | 1399 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_IEEE); |
5b7f7626 SR |
1400 | } |
1401 | EXPORT_SYMBOL(dcbnl_ieee_notify); | |
1402 | ||
1403 | int dcbnl_cee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1404 | u32 seq, u32 portid) |
5b7f7626 | 1405 | { |
15e47304 | 1406 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_CEE); |
5b7f7626 SR |
1407 | } |
1408 | EXPORT_SYMBOL(dcbnl_cee_notify); | |
314b4778 | 1409 | |
c9368247 SM |
1410 | /* Handle IEEE 802.1Qaz/802.1Qau/802.1Qbb SET commands. |
1411 | * If any requested operation can not be completed | |
1412 | * the entire msg is aborted and error value is returned. | |
314b4778 JF |
1413 | * No attempt is made to reconcile the case where only part of the |
1414 | * cmd can be completed. | |
1415 | */ | |
7be99413 TG |
1416 | static int dcbnl_ieee_set(struct net_device *netdev, struct nlmsghdr *nlh, |
1417 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 JF |
1418 | { |
1419 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1420 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1421 | int err; |
314b4778 JF |
1422 | |
1423 | if (!ops) | |
3d1f4869 | 1424 | return -EOPNOTSUPP; |
314b4778 | 1425 | |
4003b658 JF |
1426 | if (!tb[DCB_ATTR_IEEE]) |
1427 | return -EINVAL; | |
1428 | ||
314b4778 JF |
1429 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, |
1430 | tb[DCB_ATTR_IEEE], dcbnl_ieee_policy); | |
1431 | if (err) | |
1432 | return err; | |
1433 | ||
1434 | if (ieee[DCB_ATTR_IEEE_ETS] && ops->ieee_setets) { | |
1435 | struct ieee_ets *ets = nla_data(ieee[DCB_ATTR_IEEE_ETS]); | |
1436 | err = ops->ieee_setets(netdev, ets); | |
1437 | if (err) | |
1438 | goto err; | |
1439 | } | |
1440 | ||
08f10aff AV |
1441 | if (ieee[DCB_ATTR_IEEE_MAXRATE] && ops->ieee_setmaxrate) { |
1442 | struct ieee_maxrate *maxrate = | |
1443 | nla_data(ieee[DCB_ATTR_IEEE_MAXRATE]); | |
1444 | err = ops->ieee_setmaxrate(netdev, maxrate); | |
1445 | if (err) | |
1446 | goto err; | |
1447 | } | |
1448 | ||
c9368247 SM |
1449 | if (ieee[DCB_ATTR_IEEE_QCN] && ops->ieee_setqcn) { |
1450 | struct ieee_qcn *qcn = | |
1451 | nla_data(ieee[DCB_ATTR_IEEE_QCN]); | |
1452 | ||
1453 | err = ops->ieee_setqcn(netdev, qcn); | |
1454 | if (err) | |
1455 | goto err; | |
1456 | } | |
1457 | ||
314b4778 JF |
1458 | if (ieee[DCB_ATTR_IEEE_PFC] && ops->ieee_setpfc) { |
1459 | struct ieee_pfc *pfc = nla_data(ieee[DCB_ATTR_IEEE_PFC]); | |
1460 | err = ops->ieee_setpfc(netdev, pfc); | |
1461 | if (err) | |
1462 | goto err; | |
1463 | } | |
1464 | ||
1465 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1466 | struct nlattr *attr; | |
1467 | int rem; | |
1468 | ||
1469 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1470 | struct dcb_app *app_data; | |
1471 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1472 | continue; | |
1473 | app_data = nla_data(attr); | |
1474 | if (ops->ieee_setapp) | |
1475 | err = ops->ieee_setapp(netdev, app_data); | |
1476 | else | |
b6db2174 | 1477 | err = dcb_ieee_setapp(netdev, app_data); |
314b4778 JF |
1478 | if (err) |
1479 | goto err; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | err: | |
7be99413 | 1484 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1485 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_SET, seq, 0); |
314b4778 JF |
1486 | return err; |
1487 | } | |
1488 | ||
7be99413 TG |
1489 | static int dcbnl_ieee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1490 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 | 1491 | { |
314b4778 | 1492 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
314b4778 JF |
1493 | |
1494 | if (!ops) | |
1495 | return -EOPNOTSUPP; | |
1496 | ||
7be99413 | 1497 | return dcbnl_ieee_fill(skb, netdev); |
314b4778 | 1498 | } |
f9ae7e4b | 1499 | |
7be99413 TG |
1500 | static int dcbnl_ieee_del(struct net_device *netdev, struct nlmsghdr *nlh, |
1501 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
f9ae7e4b JF |
1502 | { |
1503 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1504 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1505 | int err; |
f9ae7e4b JF |
1506 | |
1507 | if (!ops) | |
1508 | return -EOPNOTSUPP; | |
1509 | ||
1510 | if (!tb[DCB_ATTR_IEEE]) | |
1511 | return -EINVAL; | |
1512 | ||
1513 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, | |
1514 | tb[DCB_ATTR_IEEE], dcbnl_ieee_policy); | |
1515 | if (err) | |
1516 | return err; | |
1517 | ||
1518 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1519 | struct nlattr *attr; | |
1520 | int rem; | |
1521 | ||
1522 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1523 | struct dcb_app *app_data; | |
1524 | ||
1525 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1526 | continue; | |
1527 | app_data = nla_data(attr); | |
1528 | if (ops->ieee_delapp) | |
1529 | err = ops->ieee_delapp(netdev, app_data); | |
1530 | else | |
1531 | err = dcb_ieee_delapp(netdev, app_data); | |
1532 | if (err) | |
1533 | goto err; | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | err: | |
7be99413 | 1538 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1539 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_DEL, seq, 0); |
f9ae7e4b JF |
1540 | return err; |
1541 | } | |
1542 | ||
1543 | ||
6241b625 | 1544 | /* DCBX configuration */ |
7be99413 TG |
1545 | static int dcbnl_getdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1546 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1547 | { |
6241b625 | 1548 | if (!netdev->dcbnl_ops->getdcbx) |
7f891cf1 | 1549 | return -EOPNOTSUPP; |
6241b625 | 1550 | |
7be99413 TG |
1551 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1552 | netdev->dcbnl_ops->getdcbx(netdev)); | |
6241b625 SR |
1553 | } |
1554 | ||
7be99413 TG |
1555 | static int dcbnl_setdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1556 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1557 | { |
6241b625 SR |
1558 | u8 value; |
1559 | ||
7f891cf1 SR |
1560 | if (!netdev->dcbnl_ops->setdcbx) |
1561 | return -EOPNOTSUPP; | |
1562 | ||
1563 | if (!tb[DCB_ATTR_DCBX]) | |
1564 | return -EINVAL; | |
6241b625 SR |
1565 | |
1566 | value = nla_get_u8(tb[DCB_ATTR_DCBX]); | |
1567 | ||
7be99413 TG |
1568 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1569 | netdev->dcbnl_ops->setdcbx(netdev, value)); | |
6241b625 SR |
1570 | } |
1571 | ||
7be99413 TG |
1572 | static int dcbnl_getfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1573 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e | 1574 | { |
ea45fe4e SR |
1575 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1], *nest; |
1576 | u8 value; | |
7f891cf1 | 1577 | int ret, i; |
ea45fe4e SR |
1578 | int getall = 0; |
1579 | ||
7f891cf1 SR |
1580 | if (!netdev->dcbnl_ops->getfeatcfg) |
1581 | return -EOPNOTSUPP; | |
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); | |
7f891cf1 | 1588 | if (ret) |
7be99413 | 1589 | return ret; |
ea45fe4e | 1590 | |
7be99413 TG |
1591 | nest = nla_nest_start(skb, DCB_ATTR_FEATCFG); |
1592 | if (!nest) | |
1593 | return -EMSGSIZE; | |
ea45fe4e SR |
1594 | |
1595 | if (data[DCB_FEATCFG_ATTR_ALL]) | |
1596 | getall = 1; | |
1597 | ||
1598 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1599 | if (!getall && !data[i]) | |
1600 | continue; | |
1601 | ||
1602 | ret = netdev->dcbnl_ops->getfeatcfg(netdev, i, &value); | |
7f891cf1 | 1603 | if (!ret) |
7be99413 | 1604 | ret = nla_put_u8(skb, i, value); |
ea45fe4e | 1605 | |
7f891cf1 | 1606 | if (ret) { |
7be99413 | 1607 | nla_nest_cancel(skb, nest); |
7f891cf1 SR |
1608 | goto nla_put_failure; |
1609 | } | |
ea45fe4e | 1610 | } |
7be99413 | 1611 | nla_nest_end(skb, nest); |
ea45fe4e | 1612 | |
7f891cf1 | 1613 | nla_put_failure: |
ea45fe4e SR |
1614 | return ret; |
1615 | } | |
1616 | ||
7be99413 TG |
1617 | static int dcbnl_setfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1618 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e SR |
1619 | { |
1620 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1]; | |
7f891cf1 | 1621 | int ret, i; |
ea45fe4e | 1622 | u8 value; |
ea45fe4e | 1623 | |
7f891cf1 SR |
1624 | if (!netdev->dcbnl_ops->setfeatcfg) |
1625 | return -ENOTSUPP; | |
1626 | ||
1627 | if (!tb[DCB_ATTR_FEATCFG]) | |
1628 | return -EINVAL; | |
ea45fe4e SR |
1629 | |
1630 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG], | |
1631 | dcbnl_featcfg_nest); | |
1632 | ||
7f891cf1 | 1633 | if (ret) |
ea45fe4e | 1634 | goto err; |
ea45fe4e SR |
1635 | |
1636 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1637 | if (data[i] == NULL) | |
1638 | continue; | |
1639 | ||
1640 | value = nla_get_u8(data[i]); | |
1641 | ||
1642 | ret = netdev->dcbnl_ops->setfeatcfg(netdev, i, value); | |
1643 | ||
1644 | if (ret) | |
7f891cf1 | 1645 | goto err; |
ea45fe4e | 1646 | } |
ea45fe4e | 1647 | err: |
7be99413 | 1648 | ret = nla_put_u8(skb, DCB_ATTR_FEATCFG, ret); |
7f891cf1 | 1649 | |
ea45fe4e SR |
1650 | return ret; |
1651 | } | |
1652 | ||
dc6ed1df | 1653 | /* Handle CEE DCBX GET commands. */ |
7be99413 TG |
1654 | static int dcbnl_cee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1655 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
dc6ed1df | 1656 | { |
dc6ed1df | 1657 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
dc6ed1df SR |
1658 | |
1659 | if (!ops) | |
1660 | return -EOPNOTSUPP; | |
1661 | ||
7be99413 | 1662 | return dcbnl_cee_fill(skb, netdev); |
dc6ed1df SR |
1663 | } |
1664 | ||
33a03aad TG |
1665 | struct reply_func { |
1666 | /* reply netlink message type */ | |
1667 | int type; | |
1668 | ||
1669 | /* function to fill message contents */ | |
1670 | int (*cb)(struct net_device *, struct nlmsghdr *, u32, | |
1671 | struct nlattr **, struct sk_buff *); | |
1672 | }; | |
1673 | ||
1674 | static const struct reply_func reply_funcs[DCB_CMD_MAX+1] = { | |
7be99413 TG |
1675 | [DCB_CMD_GSTATE] = { RTM_GETDCB, dcbnl_getstate }, |
1676 | [DCB_CMD_SSTATE] = { RTM_SETDCB, dcbnl_setstate }, | |
1677 | [DCB_CMD_PFC_GCFG] = { RTM_GETDCB, dcbnl_getpfccfg }, | |
1678 | [DCB_CMD_PFC_SCFG] = { RTM_SETDCB, dcbnl_setpfccfg }, | |
1679 | [DCB_CMD_GPERM_HWADDR] = { RTM_GETDCB, dcbnl_getperm_hwaddr }, | |
1680 | [DCB_CMD_GCAP] = { RTM_GETDCB, dcbnl_getcap }, | |
1681 | [DCB_CMD_GNUMTCS] = { RTM_GETDCB, dcbnl_getnumtcs }, | |
1682 | [DCB_CMD_SNUMTCS] = { RTM_SETDCB, dcbnl_setnumtcs }, | |
1683 | [DCB_CMD_PFC_GSTATE] = { RTM_GETDCB, dcbnl_getpfcstate }, | |
1684 | [DCB_CMD_PFC_SSTATE] = { RTM_SETDCB, dcbnl_setpfcstate }, | |
1685 | [DCB_CMD_GAPP] = { RTM_GETDCB, dcbnl_getapp }, | |
1686 | [DCB_CMD_SAPP] = { RTM_SETDCB, dcbnl_setapp }, | |
1687 | [DCB_CMD_PGTX_GCFG] = { RTM_GETDCB, dcbnl_pgtx_getcfg }, | |
1688 | [DCB_CMD_PGTX_SCFG] = { RTM_SETDCB, dcbnl_pgtx_setcfg }, | |
1689 | [DCB_CMD_PGRX_GCFG] = { RTM_GETDCB, dcbnl_pgrx_getcfg }, | |
1690 | [DCB_CMD_PGRX_SCFG] = { RTM_SETDCB, dcbnl_pgrx_setcfg }, | |
1691 | [DCB_CMD_SET_ALL] = { RTM_SETDCB, dcbnl_setall }, | |
1692 | [DCB_CMD_BCN_GCFG] = { RTM_GETDCB, dcbnl_bcn_getcfg }, | |
1693 | [DCB_CMD_BCN_SCFG] = { RTM_SETDCB, dcbnl_bcn_setcfg }, | |
1694 | [DCB_CMD_IEEE_GET] = { RTM_GETDCB, dcbnl_ieee_get }, | |
1695 | [DCB_CMD_IEEE_SET] = { RTM_SETDCB, dcbnl_ieee_set }, | |
1696 | [DCB_CMD_IEEE_DEL] = { RTM_SETDCB, dcbnl_ieee_del }, | |
1697 | [DCB_CMD_GDCBX] = { RTM_GETDCB, dcbnl_getdcbx }, | |
1698 | [DCB_CMD_SDCBX] = { RTM_SETDCB, dcbnl_setdcbx }, | |
1699 | [DCB_CMD_GFEATCFG] = { RTM_GETDCB, dcbnl_getfeatcfg }, | |
1700 | [DCB_CMD_SFEATCFG] = { RTM_SETDCB, dcbnl_setfeatcfg }, | |
1701 | [DCB_CMD_CEE_GET] = { RTM_GETDCB, dcbnl_cee_get }, | |
33a03aad TG |
1702 | }; |
1703 | ||
661d2967 | 1704 | static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh) |
2f90b865 AD |
1705 | { |
1706 | struct net *net = sock_net(skb->sk); | |
1707 | struct net_device *netdev; | |
7a282bc3 | 1708 | struct dcbmsg *dcb = nlmsg_data(nlh); |
2f90b865 | 1709 | struct nlattr *tb[DCB_ATTR_MAX + 1]; |
15e47304 | 1710 | u32 portid = skb ? NETLINK_CB(skb).portid : 0; |
2f90b865 | 1711 | int ret = -EINVAL; |
33a03aad | 1712 | struct sk_buff *reply_skb; |
39912f9c | 1713 | struct nlmsghdr *reply_nlh = NULL; |
33a03aad | 1714 | const struct reply_func *fn; |
2f90b865 | 1715 | |
90f62cf3 | 1716 | if ((nlh->nlmsg_type == RTM_SETDCB) && !netlink_capable(skb, CAP_NET_ADMIN)) |
dfc47ef8 EB |
1717 | return -EPERM; |
1718 | ||
2f90b865 AD |
1719 | ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX, |
1720 | dcbnl_rtnl_policy); | |
1721 | if (ret < 0) | |
1722 | return ret; | |
1723 | ||
33a03aad TG |
1724 | if (dcb->cmd > DCB_CMD_MAX) |
1725 | return -EINVAL; | |
1726 | ||
1727 | /* check if a reply function has been defined for the command */ | |
1728 | fn = &reply_funcs[dcb->cmd]; | |
1729 | if (!fn->cb) | |
1730 | return -EOPNOTSUPP; | |
1731 | ||
2f90b865 AD |
1732 | if (!tb[DCB_ATTR_IFNAME]) |
1733 | return -EINVAL; | |
1734 | ||
d9ac62be | 1735 | netdev = __dev_get_by_name(net, nla_data(tb[DCB_ATTR_IFNAME])); |
2f90b865 | 1736 | if (!netdev) |
3d1f4869 | 1737 | return -ENODEV; |
2f90b865 | 1738 | |
d9ac62be YX |
1739 | if (!netdev->dcbnl_ops) |
1740 | return -EOPNOTSUPP; | |
2f90b865 | 1741 | |
15e47304 | 1742 | reply_skb = dcbnl_newmsg(fn->type, dcb->cmd, portid, nlh->nlmsg_seq, |
33a03aad | 1743 | nlh->nlmsg_flags, &reply_nlh); |
d9ac62be YX |
1744 | if (!reply_skb) |
1745 | return -ENOBUFS; | |
33a03aad TG |
1746 | |
1747 | ret = fn->cb(netdev, nlh, nlh->nlmsg_seq, tb, reply_skb); | |
1748 | if (ret < 0) { | |
1749 | nlmsg_free(reply_skb); | |
1750 | goto out; | |
1751 | } | |
1752 | ||
1753 | nlmsg_end(reply_skb, reply_nlh); | |
1754 | ||
7c77ab24 | 1755 | ret = rtnl_unicast(reply_skb, net, portid); |
2f90b865 | 1756 | out: |
2f90b865 AD |
1757 | return ret; |
1758 | } | |
1759 | ||
716b31ab TG |
1760 | static struct dcb_app_type *dcb_app_lookup(const struct dcb_app *app, |
1761 | int ifindex, int prio) | |
1762 | { | |
1763 | struct dcb_app_type *itr; | |
1764 | ||
1765 | list_for_each_entry(itr, &dcb_app_list, list) { | |
1766 | if (itr->app.selector == app->selector && | |
1767 | itr->app.protocol == app->protocol && | |
1768 | itr->ifindex == ifindex && | |
1769 | (!prio || itr->app.priority == prio)) | |
1770 | return itr; | |
1771 | } | |
1772 | ||
1773 | return NULL; | |
1774 | } | |
1775 | ||
4e4f2f69 TG |
1776 | static int dcb_app_add(const struct dcb_app *app, int ifindex) |
1777 | { | |
1778 | struct dcb_app_type *entry; | |
1779 | ||
1780 | entry = kmalloc(sizeof(*entry), GFP_ATOMIC); | |
1781 | if (!entry) | |
1782 | return -ENOMEM; | |
1783 | ||
1784 | memcpy(&entry->app, app, sizeof(*app)); | |
1785 | entry->ifindex = ifindex; | |
1786 | list_add(&entry->list, &dcb_app_list); | |
1787 | ||
1788 | return 0; | |
1789 | } | |
1790 | ||
9ab933ab JF |
1791 | /** |
1792 | * dcb_getapp - retrieve the DCBX application user priority | |
1793 | * | |
1794 | * On success returns a non-zero 802.1p user priority bitmap | |
1795 | * otherwise returns 0 as the invalid user priority bitmap to | |
1796 | * indicate an error. | |
1797 | */ | |
1798 | u8 dcb_getapp(struct net_device *dev, struct dcb_app *app) | |
1799 | { | |
1800 | struct dcb_app_type *itr; | |
1801 | u8 prio = 0; | |
1802 | ||
52cff74e | 1803 | spin_lock_bh(&dcb_lock); |
716b31ab TG |
1804 | if ((itr = dcb_app_lookup(app, dev->ifindex, 0))) |
1805 | prio = itr->app.priority; | |
52cff74e | 1806 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1807 | |
1808 | return prio; | |
1809 | } | |
1810 | EXPORT_SYMBOL(dcb_getapp); | |
1811 | ||
1812 | /** | |
b6db2174 | 1813 | * dcb_setapp - add CEE dcb application data to app list |
9ab933ab | 1814 | * |
b6db2174 JF |
1815 | * Priority 0 is an invalid priority in CEE spec. This routine |
1816 | * removes applications from the app list if the priority is | |
16eecd9b | 1817 | * set to zero. Priority is expected to be 8-bit 802.1p user priority bitmap |
9ab933ab | 1818 | */ |
ab6baf98 | 1819 | int dcb_setapp(struct net_device *dev, struct dcb_app *new) |
9ab933ab JF |
1820 | { |
1821 | struct dcb_app_type *itr; | |
7ec79270 | 1822 | struct dcb_app_type event; |
4e4f2f69 | 1823 | int err = 0; |
7ec79270 | 1824 | |
e290ed81 | 1825 | event.ifindex = dev->ifindex; |
7ec79270 | 1826 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1827 | if (dev->dcbnl_ops->getdcbx) |
1828 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
9ab933ab | 1829 | |
52cff74e | 1830 | spin_lock_bh(&dcb_lock); |
9ab933ab | 1831 | /* Search for existing match and replace */ |
716b31ab TG |
1832 | if ((itr = dcb_app_lookup(new, dev->ifindex, 0))) { |
1833 | if (new->priority) | |
1834 | itr->app.priority = new->priority; | |
1835 | else { | |
1836 | list_del(&itr->list); | |
1837 | kfree(itr); | |
9ab933ab | 1838 | } |
716b31ab | 1839 | goto out; |
9ab933ab JF |
1840 | } |
1841 | /* App type does not exist add new application type */ | |
4e4f2f69 TG |
1842 | if (new->priority) |
1843 | err = dcb_app_add(new, dev->ifindex); | |
9ab933ab | 1844 | out: |
52cff74e | 1845 | spin_unlock_bh(&dcb_lock); |
4e4f2f69 TG |
1846 | if (!err) |
1847 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1848 | return err; | |
9ab933ab JF |
1849 | } |
1850 | EXPORT_SYMBOL(dcb_setapp); | |
1851 | ||
a364c8cf JF |
1852 | /** |
1853 | * dcb_ieee_getapp_mask - retrieve the IEEE DCB application priority | |
1854 | * | |
1855 | * Helper routine which on success returns a non-zero 802.1Qaz user | |
1856 | * priority bitmap otherwise returns 0 to indicate the dcb_app was | |
1857 | * not found in APP list. | |
1858 | */ | |
1859 | u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app) | |
1860 | { | |
1861 | struct dcb_app_type *itr; | |
1862 | u8 prio = 0; | |
1863 | ||
52cff74e | 1864 | spin_lock_bh(&dcb_lock); |
716b31ab TG |
1865 | if ((itr = dcb_app_lookup(app, dev->ifindex, 0))) |
1866 | prio |= 1 << itr->app.priority; | |
52cff74e | 1867 | spin_unlock_bh(&dcb_lock); |
a364c8cf JF |
1868 | |
1869 | return prio; | |
1870 | } | |
1871 | EXPORT_SYMBOL(dcb_ieee_getapp_mask); | |
1872 | ||
b6db2174 JF |
1873 | /** |
1874 | * dcb_ieee_setapp - add IEEE dcb application data to app list | |
1875 | * | |
1876 | * This adds Application data to the list. Multiple application | |
1877 | * entries may exists for the same selector and protocol as long | |
16eecd9b AB |
1878 | * as the priorities are different. Priority is expected to be a |
1879 | * 3-bit unsigned integer | |
b6db2174 JF |
1880 | */ |
1881 | int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new) | |
1882 | { | |
b6db2174 JF |
1883 | struct dcb_app_type event; |
1884 | int err = 0; | |
1885 | ||
e290ed81 | 1886 | event.ifindex = dev->ifindex; |
b6db2174 | 1887 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1888 | if (dev->dcbnl_ops->getdcbx) |
1889 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
b6db2174 | 1890 | |
52cff74e | 1891 | spin_lock_bh(&dcb_lock); |
b6db2174 | 1892 | /* Search for existing match and abort if found */ |
716b31ab TG |
1893 | if (dcb_app_lookup(new, dev->ifindex, new->priority)) { |
1894 | err = -EEXIST; | |
1895 | goto out; | |
b6db2174 JF |
1896 | } |
1897 | ||
4e4f2f69 | 1898 | err = dcb_app_add(new, dev->ifindex); |
b6db2174 | 1899 | out: |
52cff74e | 1900 | spin_unlock_bh(&dcb_lock); |
b6db2174 JF |
1901 | if (!err) |
1902 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1903 | return err; | |
1904 | } | |
1905 | EXPORT_SYMBOL(dcb_ieee_setapp); | |
1906 | ||
f9ae7e4b JF |
1907 | /** |
1908 | * dcb_ieee_delapp - delete IEEE dcb application data from list | |
1909 | * | |
1910 | * This removes a matching APP data from the APP list | |
1911 | */ | |
1912 | int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del) | |
1913 | { | |
1914 | struct dcb_app_type *itr; | |
1915 | struct dcb_app_type event; | |
1916 | int err = -ENOENT; | |
1917 | ||
e290ed81 | 1918 | event.ifindex = dev->ifindex; |
f9ae7e4b | 1919 | memcpy(&event.app, del, sizeof(event.app)); |
6bd0e1cb JF |
1920 | if (dev->dcbnl_ops->getdcbx) |
1921 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
f9ae7e4b | 1922 | |
52cff74e | 1923 | spin_lock_bh(&dcb_lock); |
f9ae7e4b | 1924 | /* Search for existing match and remove it. */ |
716b31ab TG |
1925 | if ((itr = dcb_app_lookup(del, dev->ifindex, del->priority))) { |
1926 | list_del(&itr->list); | |
1927 | kfree(itr); | |
1928 | err = 0; | |
f9ae7e4b JF |
1929 | } |
1930 | ||
52cff74e | 1931 | spin_unlock_bh(&dcb_lock); |
f9ae7e4b JF |
1932 | if (!err) |
1933 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1934 | return err; | |
1935 | } | |
1936 | EXPORT_SYMBOL(dcb_ieee_delapp); | |
1937 | ||
7c14c3f1 | 1938 | static void dcb_flushapp(void) |
9ab933ab JF |
1939 | { |
1940 | struct dcb_app_type *app; | |
2a8fe003 | 1941 | struct dcb_app_type *tmp; |
9ab933ab | 1942 | |
52cff74e | 1943 | spin_lock_bh(&dcb_lock); |
2a8fe003 | 1944 | list_for_each_entry_safe(app, tmp, &dcb_app_list, list) { |
9ab933ab JF |
1945 | list_del(&app->list); |
1946 | kfree(app); | |
1947 | } | |
52cff74e | 1948 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1949 | } |
1950 | ||
2f90b865 AD |
1951 | static int __init dcbnl_init(void) |
1952 | { | |
9ab933ab JF |
1953 | INIT_LIST_HEAD(&dcb_app_list); |
1954 | ||
c7ac8679 GR |
1955 | rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, NULL); |
1956 | rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, NULL); | |
2f90b865 AD |
1957 | |
1958 | return 0; | |
1959 | } | |
1960 | module_init(dcbnl_init); | |
1961 | ||
1962 | static void __exit dcbnl_exit(void) | |
1963 | { | |
1964 | rtnl_unregister(PF_UNSPEC, RTM_GETDCB); | |
1965 | rtnl_unregister(PF_UNSPEC, RTM_SETDCB); | |
9ab933ab | 1966 | dcb_flushapp(); |
2f90b865 AD |
1967 | } |
1968 | module_exit(dcbnl_exit); |