Commit | Line | Data |
---|---|---|
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 | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
15 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
16 | * | |
17 | * Author: Lucy Liu <lucy.liu@intel.com> | |
18 | */ | |
19 | ||
20 | #include <linux/netdevice.h> | |
21 | #include <linux/netlink.h> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
2f90b865 AD |
23 | #include <net/netlink.h> |
24 | #include <net/rtnetlink.h> | |
25 | #include <linux/dcbnl.h> | |
96b99684 | 26 | #include <net/dcbevent.h> |
2f90b865 | 27 | #include <linux/rtnetlink.h> |
3a9a231d | 28 | #include <linux/module.h> |
2f90b865 AD |
29 | #include <net/sock.h> |
30 | ||
ae86b9e3 | 31 | /* Data Center Bridging (DCB) is a collection of Ethernet enhancements |
2f90b865 AD |
32 | * intended to allow network traffic with differing requirements |
33 | * (highly reliable, no drops vs. best effort vs. low latency) to operate | |
34 | * and co-exist on Ethernet. Current DCB features are: | |
35 | * | |
36 | * Enhanced Transmission Selection (aka Priority Grouping [PG]) - provides a | |
37 | * framework for assigning bandwidth guarantees to traffic classes. | |
38 | * | |
39 | * Priority-based Flow Control (PFC) - provides a flow control mechanism which | |
40 | * can work independently for each 802.1p priority. | |
41 | * | |
42 | * Congestion Notification - provides a mechanism for end-to-end congestion | |
43 | * control for protocols which do not have built-in congestion management. | |
44 | * | |
45 | * More information about the emerging standards for these Ethernet features | |
46 | * can be found at: http://www.ieee802.org/1/pages/dcbridges.html | |
47 | * | |
48 | * This file implements an rtnetlink interface to allow configuration of DCB | |
49 | * features for capable devices. | |
50 | */ | |
51 | ||
52 | MODULE_AUTHOR("Lucy Liu, <lucy.liu@intel.com>"); | |
7a6b6f51 | 53 | MODULE_DESCRIPTION("Data Center Bridging netlink interface"); |
2f90b865 AD |
54 | MODULE_LICENSE("GPL"); |
55 | ||
56 | /**************** DCB attribute policies *************************************/ | |
57 | ||
58 | /* DCB netlink attributes policy */ | |
b54452b0 | 59 | static const struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = { |
859ee3c4 AD |
60 | [DCB_ATTR_IFNAME] = {.type = NLA_NUL_STRING, .len = IFNAMSIZ - 1}, |
61 | [DCB_ATTR_STATE] = {.type = NLA_U8}, | |
62 | [DCB_ATTR_PFC_CFG] = {.type = NLA_NESTED}, | |
63 | [DCB_ATTR_PG_CFG] = {.type = NLA_NESTED}, | |
64 | [DCB_ATTR_SET_ALL] = {.type = NLA_U8}, | |
2f90b865 | 65 | [DCB_ATTR_PERM_HWADDR] = {.type = NLA_FLAG}, |
859ee3c4 AD |
66 | [DCB_ATTR_CAP] = {.type = NLA_NESTED}, |
67 | [DCB_ATTR_PFC_STATE] = {.type = NLA_U8}, | |
68 | [DCB_ATTR_BCN] = {.type = NLA_NESTED}, | |
6fa382af | 69 | [DCB_ATTR_APP] = {.type = NLA_NESTED}, |
3e29027a | 70 | [DCB_ATTR_IEEE] = {.type = NLA_NESTED}, |
6241b625 | 71 | [DCB_ATTR_DCBX] = {.type = NLA_U8}, |
ea45fe4e | 72 | [DCB_ATTR_FEATCFG] = {.type = NLA_NESTED}, |
2f90b865 AD |
73 | }; |
74 | ||
75 | /* DCB priority flow control to User Priority nested attributes */ | |
b54452b0 | 76 | static const struct nla_policy dcbnl_pfc_up_nest[DCB_PFC_UP_ATTR_MAX + 1] = { |
2f90b865 AD |
77 | [DCB_PFC_UP_ATTR_0] = {.type = NLA_U8}, |
78 | [DCB_PFC_UP_ATTR_1] = {.type = NLA_U8}, | |
79 | [DCB_PFC_UP_ATTR_2] = {.type = NLA_U8}, | |
80 | [DCB_PFC_UP_ATTR_3] = {.type = NLA_U8}, | |
81 | [DCB_PFC_UP_ATTR_4] = {.type = NLA_U8}, | |
82 | [DCB_PFC_UP_ATTR_5] = {.type = NLA_U8}, | |
83 | [DCB_PFC_UP_ATTR_6] = {.type = NLA_U8}, | |
84 | [DCB_PFC_UP_ATTR_7] = {.type = NLA_U8}, | |
85 | [DCB_PFC_UP_ATTR_ALL] = {.type = NLA_FLAG}, | |
86 | }; | |
87 | ||
88 | /* DCB priority grouping nested attributes */ | |
b54452b0 | 89 | static const struct nla_policy dcbnl_pg_nest[DCB_PG_ATTR_MAX + 1] = { |
2f90b865 AD |
90 | [DCB_PG_ATTR_TC_0] = {.type = NLA_NESTED}, |
91 | [DCB_PG_ATTR_TC_1] = {.type = NLA_NESTED}, | |
92 | [DCB_PG_ATTR_TC_2] = {.type = NLA_NESTED}, | |
93 | [DCB_PG_ATTR_TC_3] = {.type = NLA_NESTED}, | |
94 | [DCB_PG_ATTR_TC_4] = {.type = NLA_NESTED}, | |
95 | [DCB_PG_ATTR_TC_5] = {.type = NLA_NESTED}, | |
96 | [DCB_PG_ATTR_TC_6] = {.type = NLA_NESTED}, | |
97 | [DCB_PG_ATTR_TC_7] = {.type = NLA_NESTED}, | |
98 | [DCB_PG_ATTR_TC_ALL] = {.type = NLA_NESTED}, | |
99 | [DCB_PG_ATTR_BW_ID_0] = {.type = NLA_U8}, | |
100 | [DCB_PG_ATTR_BW_ID_1] = {.type = NLA_U8}, | |
101 | [DCB_PG_ATTR_BW_ID_2] = {.type = NLA_U8}, | |
102 | [DCB_PG_ATTR_BW_ID_3] = {.type = NLA_U8}, | |
103 | [DCB_PG_ATTR_BW_ID_4] = {.type = NLA_U8}, | |
104 | [DCB_PG_ATTR_BW_ID_5] = {.type = NLA_U8}, | |
105 | [DCB_PG_ATTR_BW_ID_6] = {.type = NLA_U8}, | |
106 | [DCB_PG_ATTR_BW_ID_7] = {.type = NLA_U8}, | |
107 | [DCB_PG_ATTR_BW_ID_ALL] = {.type = NLA_FLAG}, | |
108 | }; | |
109 | ||
110 | /* DCB traffic class nested attributes. */ | |
b54452b0 | 111 | static const struct nla_policy dcbnl_tc_param_nest[DCB_TC_ATTR_PARAM_MAX + 1] = { |
2f90b865 AD |
112 | [DCB_TC_ATTR_PARAM_PGID] = {.type = NLA_U8}, |
113 | [DCB_TC_ATTR_PARAM_UP_MAPPING] = {.type = NLA_U8}, | |
114 | [DCB_TC_ATTR_PARAM_STRICT_PRIO] = {.type = NLA_U8}, | |
115 | [DCB_TC_ATTR_PARAM_BW_PCT] = {.type = NLA_U8}, | |
116 | [DCB_TC_ATTR_PARAM_ALL] = {.type = NLA_FLAG}, | |
117 | }; | |
118 | ||
46132188 | 119 | /* DCB capabilities nested attributes. */ |
b54452b0 | 120 | static const struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = { |
46132188 AD |
121 | [DCB_CAP_ATTR_ALL] = {.type = NLA_FLAG}, |
122 | [DCB_CAP_ATTR_PG] = {.type = NLA_U8}, | |
123 | [DCB_CAP_ATTR_PFC] = {.type = NLA_U8}, | |
124 | [DCB_CAP_ATTR_UP2TC] = {.type = NLA_U8}, | |
125 | [DCB_CAP_ATTR_PG_TCS] = {.type = NLA_U8}, | |
126 | [DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8}, | |
127 | [DCB_CAP_ATTR_GSP] = {.type = NLA_U8}, | |
128 | [DCB_CAP_ATTR_BCN] = {.type = NLA_U8}, | |
6241b625 | 129 | [DCB_CAP_ATTR_DCBX] = {.type = NLA_U8}, |
46132188 | 130 | }; |
2f90b865 | 131 | |
33dbabc4 | 132 | /* DCB capabilities nested attributes. */ |
b54452b0 | 133 | static const struct nla_policy dcbnl_numtcs_nest[DCB_NUMTCS_ATTR_MAX + 1] = { |
33dbabc4 AD |
134 | [DCB_NUMTCS_ATTR_ALL] = {.type = NLA_FLAG}, |
135 | [DCB_NUMTCS_ATTR_PG] = {.type = NLA_U8}, | |
136 | [DCB_NUMTCS_ATTR_PFC] = {.type = NLA_U8}, | |
137 | }; | |
138 | ||
859ee3c4 | 139 | /* DCB BCN nested attributes. */ |
b54452b0 | 140 | static const struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = { |
859ee3c4 AD |
141 | [DCB_BCN_ATTR_RP_0] = {.type = NLA_U8}, |
142 | [DCB_BCN_ATTR_RP_1] = {.type = NLA_U8}, | |
143 | [DCB_BCN_ATTR_RP_2] = {.type = NLA_U8}, | |
144 | [DCB_BCN_ATTR_RP_3] = {.type = NLA_U8}, | |
145 | [DCB_BCN_ATTR_RP_4] = {.type = NLA_U8}, | |
146 | [DCB_BCN_ATTR_RP_5] = {.type = NLA_U8}, | |
147 | [DCB_BCN_ATTR_RP_6] = {.type = NLA_U8}, | |
148 | [DCB_BCN_ATTR_RP_7] = {.type = NLA_U8}, | |
149 | [DCB_BCN_ATTR_RP_ALL] = {.type = NLA_FLAG}, | |
f4314e81 DS |
150 | [DCB_BCN_ATTR_BCNA_0] = {.type = NLA_U32}, |
151 | [DCB_BCN_ATTR_BCNA_1] = {.type = NLA_U32}, | |
859ee3c4 AD |
152 | [DCB_BCN_ATTR_ALPHA] = {.type = NLA_U32}, |
153 | [DCB_BCN_ATTR_BETA] = {.type = NLA_U32}, | |
154 | [DCB_BCN_ATTR_GD] = {.type = NLA_U32}, | |
155 | [DCB_BCN_ATTR_GI] = {.type = NLA_U32}, | |
156 | [DCB_BCN_ATTR_TMAX] = {.type = NLA_U32}, | |
157 | [DCB_BCN_ATTR_TD] = {.type = NLA_U32}, | |
158 | [DCB_BCN_ATTR_RMIN] = {.type = NLA_U32}, | |
159 | [DCB_BCN_ATTR_W] = {.type = NLA_U32}, | |
160 | [DCB_BCN_ATTR_RD] = {.type = NLA_U32}, | |
161 | [DCB_BCN_ATTR_RU] = {.type = NLA_U32}, | |
162 | [DCB_BCN_ATTR_WRTT] = {.type = NLA_U32}, | |
163 | [DCB_BCN_ATTR_RI] = {.type = NLA_U32}, | |
164 | [DCB_BCN_ATTR_C] = {.type = NLA_U32}, | |
165 | [DCB_BCN_ATTR_ALL] = {.type = NLA_FLAG}, | |
166 | }; | |
167 | ||
6fa382af | 168 | /* DCB APP nested attributes. */ |
b54452b0 | 169 | static const struct nla_policy dcbnl_app_nest[DCB_APP_ATTR_MAX + 1] = { |
6fa382af YZ |
170 | [DCB_APP_ATTR_IDTYPE] = {.type = NLA_U8}, |
171 | [DCB_APP_ATTR_ID] = {.type = NLA_U16}, | |
172 | [DCB_APP_ATTR_PRIORITY] = {.type = NLA_U8}, | |
173 | }; | |
174 | ||
3e29027a JF |
175 | /* IEEE 802.1Qaz nested attributes. */ |
176 | static const struct nla_policy dcbnl_ieee_policy[DCB_ATTR_IEEE_MAX + 1] = { | |
177 | [DCB_ATTR_IEEE_ETS] = {.len = sizeof(struct ieee_ets)}, | |
178 | [DCB_ATTR_IEEE_PFC] = {.len = sizeof(struct ieee_pfc)}, | |
179 | [DCB_ATTR_IEEE_APP_TABLE] = {.type = NLA_NESTED}, | |
08f10aff | 180 | [DCB_ATTR_IEEE_MAXRATE] = {.len = sizeof(struct ieee_maxrate)}, |
3e29027a JF |
181 | }; |
182 | ||
183 | static const struct nla_policy dcbnl_ieee_app[DCB_ATTR_IEEE_APP_MAX + 1] = { | |
184 | [DCB_ATTR_IEEE_APP] = {.len = sizeof(struct dcb_app)}, | |
185 | }; | |
186 | ||
ea45fe4e SR |
187 | /* DCB number of traffic classes nested attributes. */ |
188 | static const struct nla_policy dcbnl_featcfg_nest[DCB_FEATCFG_ATTR_MAX + 1] = { | |
189 | [DCB_FEATCFG_ATTR_ALL] = {.type = NLA_FLAG}, | |
190 | [DCB_FEATCFG_ATTR_PG] = {.type = NLA_U8}, | |
191 | [DCB_FEATCFG_ATTR_PFC] = {.type = NLA_U8}, | |
192 | [DCB_FEATCFG_ATTR_APP] = {.type = NLA_U8}, | |
193 | }; | |
194 | ||
9ab933ab JF |
195 | static LIST_HEAD(dcb_app_list); |
196 | static DEFINE_SPINLOCK(dcb_lock); | |
197 | ||
33a03aad TG |
198 | static struct sk_buff *dcbnl_newmsg(int type, u8 cmd, u32 port, u32 seq, |
199 | u32 flags, struct nlmsghdr **nlhp) | |
200 | { | |
201 | struct sk_buff *skb; | |
202 | struct dcbmsg *dcb; | |
203 | struct nlmsghdr *nlh; | |
204 | ||
205 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
206 | if (!skb) | |
207 | return NULL; | |
208 | ||
209 | nlh = nlmsg_put(skb, port, seq, type, sizeof(*dcb), flags); | |
b3908e22 | 210 | BUG_ON(!nlh); |
33a03aad TG |
211 | |
212 | dcb = nlmsg_data(nlh); | |
213 | dcb->dcb_family = AF_UNSPEC; | |
214 | dcb->cmd = cmd; | |
215 | dcb->dcb_pad = 0; | |
216 | ||
217 | if (nlhp) | |
218 | *nlhp = nlh; | |
219 | ||
220 | return skb; | |
221 | } | |
222 | ||
7be99413 TG |
223 | static int dcbnl_getstate(struct net_device *netdev, struct nlmsghdr *nlh, |
224 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 225 | { |
2f90b865 AD |
226 | /* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */ |
227 | if (!netdev->dcbnl_ops->getstate) | |
3d1f4869 | 228 | return -EOPNOTSUPP; |
2f90b865 | 229 | |
7be99413 TG |
230 | return nla_put_u8(skb, DCB_ATTR_STATE, |
231 | netdev->dcbnl_ops->getstate(netdev)); | |
2f90b865 AD |
232 | } |
233 | ||
7be99413 TG |
234 | static int dcbnl_getpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
235 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 236 | { |
2f90b865 AD |
237 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1], *nest; |
238 | u8 value; | |
3d1f4869 | 239 | int ret; |
2f90b865 AD |
240 | int i; |
241 | int getall = 0; | |
242 | ||
3d1f4869 TG |
243 | if (!tb[DCB_ATTR_PFC_CFG]) |
244 | return -EINVAL; | |
245 | ||
246 | if (!netdev->dcbnl_ops->getpfccfg) | |
247 | return -EOPNOTSUPP; | |
2f90b865 AD |
248 | |
249 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
250 | tb[DCB_ATTR_PFC_CFG], | |
251 | dcbnl_pfc_up_nest); | |
252 | if (ret) | |
3d1f4869 | 253 | return ret; |
2f90b865 | 254 | |
7be99413 | 255 | nest = nla_nest_start(skb, DCB_ATTR_PFC_CFG); |
2f90b865 | 256 | if (!nest) |
3d1f4869 | 257 | return -EMSGSIZE; |
2f90b865 AD |
258 | |
259 | if (data[DCB_PFC_UP_ATTR_ALL]) | |
260 | getall = 1; | |
261 | ||
262 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
263 | if (!getall && !data[i]) | |
264 | continue; | |
265 | ||
266 | netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, | |
267 | &value); | |
7be99413 | 268 | ret = nla_put_u8(skb, i, value); |
2f90b865 | 269 | if (ret) { |
7be99413 | 270 | nla_nest_cancel(skb, nest); |
3d1f4869 | 271 | return ret; |
2f90b865 AD |
272 | } |
273 | } | |
7be99413 | 274 | nla_nest_end(skb, nest); |
2f90b865 AD |
275 | |
276 | return 0; | |
2f90b865 AD |
277 | } |
278 | ||
7be99413 TG |
279 | static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlmsghdr *nlh, |
280 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 281 | { |
2f90b865 | 282 | u8 perm_addr[MAX_ADDR_LEN]; |
2f90b865 AD |
283 | |
284 | if (!netdev->dcbnl_ops->getpermhwaddr) | |
3d1f4869 | 285 | return -EOPNOTSUPP; |
2f90b865 | 286 | |
29cd8ae0 | 287 | memset(perm_addr, 0, sizeof(perm_addr)); |
2f90b865 AD |
288 | netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr); |
289 | ||
7be99413 | 290 | return nla_put(skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr), perm_addr); |
2f90b865 AD |
291 | } |
292 | ||
7be99413 TG |
293 | static int dcbnl_getcap(struct net_device *netdev, struct nlmsghdr *nlh, |
294 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
46132188 | 295 | { |
46132188 AD |
296 | struct nlattr *data[DCB_CAP_ATTR_MAX + 1], *nest; |
297 | u8 value; | |
3d1f4869 | 298 | int ret; |
46132188 AD |
299 | int i; |
300 | int getall = 0; | |
301 | ||
3d1f4869 TG |
302 | if (!tb[DCB_ATTR_CAP]) |
303 | return -EINVAL; | |
304 | ||
305 | if (!netdev->dcbnl_ops->getcap) | |
306 | return -EOPNOTSUPP; | |
46132188 AD |
307 | |
308 | ret = nla_parse_nested(data, DCB_CAP_ATTR_MAX, tb[DCB_ATTR_CAP], | |
309 | dcbnl_cap_nest); | |
310 | if (ret) | |
3d1f4869 | 311 | return ret; |
46132188 | 312 | |
7be99413 | 313 | nest = nla_nest_start(skb, DCB_ATTR_CAP); |
46132188 | 314 | if (!nest) |
3d1f4869 | 315 | return -EMSGSIZE; |
46132188 AD |
316 | |
317 | if (data[DCB_CAP_ATTR_ALL]) | |
318 | getall = 1; | |
319 | ||
320 | for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) { | |
321 | if (!getall && !data[i]) | |
322 | continue; | |
323 | ||
324 | if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) { | |
7be99413 | 325 | ret = nla_put_u8(skb, i, value); |
46132188 | 326 | if (ret) { |
7be99413 | 327 | nla_nest_cancel(skb, nest); |
3d1f4869 | 328 | return ret; |
46132188 AD |
329 | } |
330 | } | |
331 | } | |
7be99413 | 332 | nla_nest_end(skb, nest); |
46132188 AD |
333 | |
334 | return 0; | |
46132188 AD |
335 | } |
336 | ||
7be99413 TG |
337 | static int dcbnl_getnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
338 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 | 339 | { |
33dbabc4 AD |
340 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1], *nest; |
341 | u8 value; | |
3d1f4869 | 342 | int ret; |
33dbabc4 AD |
343 | int i; |
344 | int getall = 0; | |
345 | ||
3d1f4869 TG |
346 | if (!tb[DCB_ATTR_NUMTCS]) |
347 | return -EINVAL; | |
348 | ||
349 | if (!netdev->dcbnl_ops->getnumtcs) | |
350 | return -EOPNOTSUPP; | |
33dbabc4 AD |
351 | |
352 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
353 | dcbnl_numtcs_nest); | |
3d1f4869 TG |
354 | if (ret) |
355 | return ret; | |
33dbabc4 | 356 | |
7be99413 | 357 | nest = nla_nest_start(skb, DCB_ATTR_NUMTCS); |
3d1f4869 TG |
358 | if (!nest) |
359 | return -EMSGSIZE; | |
33dbabc4 AD |
360 | |
361 | if (data[DCB_NUMTCS_ATTR_ALL]) | |
362 | getall = 1; | |
363 | ||
364 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
365 | if (!getall && !data[i]) | |
366 | continue; | |
367 | ||
368 | ret = netdev->dcbnl_ops->getnumtcs(netdev, i, &value); | |
369 | if (!ret) { | |
7be99413 | 370 | ret = nla_put_u8(skb, i, value); |
33dbabc4 | 371 | if (ret) { |
7be99413 | 372 | nla_nest_cancel(skb, nest); |
3d1f4869 | 373 | return ret; |
33dbabc4 | 374 | } |
3d1f4869 TG |
375 | } else |
376 | return -EINVAL; | |
33dbabc4 | 377 | } |
7be99413 | 378 | nla_nest_end(skb, nest); |
33dbabc4 AD |
379 | |
380 | return 0; | |
33dbabc4 AD |
381 | } |
382 | ||
7be99413 TG |
383 | static int dcbnl_setnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
384 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 AD |
385 | { |
386 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1]; | |
3d1f4869 | 387 | int ret; |
33dbabc4 AD |
388 | u8 value; |
389 | int i; | |
390 | ||
3d1f4869 TG |
391 | if (!tb[DCB_ATTR_NUMTCS]) |
392 | return -EINVAL; | |
393 | ||
394 | if (!netdev->dcbnl_ops->setnumtcs) | |
395 | return -EOPNOTSUPP; | |
33dbabc4 AD |
396 | |
397 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
398 | dcbnl_numtcs_nest); | |
7be99413 | 399 | if (ret) |
3d1f4869 | 400 | return ret; |
33dbabc4 AD |
401 | |
402 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
403 | if (data[i] == NULL) | |
404 | continue; | |
405 | ||
406 | value = nla_get_u8(data[i]); | |
407 | ||
408 | ret = netdev->dcbnl_ops->setnumtcs(netdev, i, value); | |
33dbabc4 | 409 | if (ret) |
7be99413 | 410 | break; |
33dbabc4 AD |
411 | } |
412 | ||
7be99413 | 413 | return nla_put_u8(skb, DCB_ATTR_NUMTCS, !!ret); |
33dbabc4 AD |
414 | } |
415 | ||
7be99413 TG |
416 | static int dcbnl_getpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
417 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 418 | { |
0eb3aa9b | 419 | if (!netdev->dcbnl_ops->getpfcstate) |
3d1f4869 | 420 | return -EOPNOTSUPP; |
0eb3aa9b | 421 | |
7be99413 TG |
422 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, |
423 | netdev->dcbnl_ops->getpfcstate(netdev)); | |
0eb3aa9b AD |
424 | } |
425 | ||
7be99413 TG |
426 | static int dcbnl_setpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
427 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 428 | { |
0eb3aa9b AD |
429 | u8 value; |
430 | ||
3d1f4869 | 431 | if (!tb[DCB_ATTR_PFC_STATE]) |
7be99413 | 432 | return -EINVAL; |
0eb3aa9b | 433 | |
3d1f4869 TG |
434 | if (!netdev->dcbnl_ops->setpfcstate) |
435 | return -EOPNOTSUPP; | |
436 | ||
0eb3aa9b AD |
437 | value = nla_get_u8(tb[DCB_ATTR_PFC_STATE]); |
438 | ||
439 | netdev->dcbnl_ops->setpfcstate(netdev, value); | |
440 | ||
7be99413 | 441 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, 0); |
0eb3aa9b AD |
442 | } |
443 | ||
7be99413 TG |
444 | static int dcbnl_getapp(struct net_device *netdev, struct nlmsghdr *nlh, |
445 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 446 | { |
57949686 YZ |
447 | struct nlattr *app_nest; |
448 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
449 | u16 id; | |
450 | u8 up, idtype; | |
3d1f4869 | 451 | int ret; |
57949686 | 452 | |
3dce38a0 | 453 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 454 | return -EINVAL; |
57949686 YZ |
455 | |
456 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
457 | dcbnl_app_nest); | |
458 | if (ret) | |
3d1f4869 | 459 | return ret; |
57949686 | 460 | |
57949686 YZ |
461 | /* all must be non-null */ |
462 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
463 | (!app_tb[DCB_APP_ATTR_ID])) | |
3d1f4869 | 464 | return -EINVAL; |
57949686 YZ |
465 | |
466 | /* either by eth type or by socket number */ | |
467 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
468 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
469 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 470 | return -EINVAL; |
57949686 YZ |
471 | |
472 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
3dce38a0 JF |
473 | |
474 | if (netdev->dcbnl_ops->getapp) { | |
475 | up = netdev->dcbnl_ops->getapp(netdev, idtype, id); | |
476 | } else { | |
477 | struct dcb_app app = { | |
478 | .selector = idtype, | |
479 | .protocol = id, | |
480 | }; | |
481 | up = dcb_getapp(netdev, &app); | |
482 | } | |
57949686 | 483 | |
7be99413 | 484 | app_nest = nla_nest_start(skb, DCB_ATTR_APP); |
d3337de5 | 485 | if (!app_nest) |
3d1f4869 | 486 | return -EMSGSIZE; |
d3337de5 | 487 | |
7be99413 | 488 | ret = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, idtype); |
57949686 YZ |
489 | if (ret) |
490 | goto out_cancel; | |
491 | ||
7be99413 | 492 | ret = nla_put_u16(skb, DCB_APP_ATTR_ID, id); |
57949686 YZ |
493 | if (ret) |
494 | goto out_cancel; | |
495 | ||
7be99413 | 496 | ret = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, up); |
57949686 YZ |
497 | if (ret) |
498 | goto out_cancel; | |
499 | ||
7be99413 | 500 | nla_nest_end(skb, app_nest); |
57949686 | 501 | |
3d1f4869 | 502 | return 0; |
57949686 YZ |
503 | |
504 | out_cancel: | |
7be99413 | 505 | nla_nest_cancel(skb, app_nest); |
57949686 YZ |
506 | return ret; |
507 | } | |
508 | ||
7be99413 TG |
509 | static int dcbnl_setapp(struct net_device *netdev, struct nlmsghdr *nlh, |
510 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 511 | { |
3d1f4869 | 512 | int ret; |
57949686 YZ |
513 | u16 id; |
514 | u8 up, idtype; | |
515 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
516 | ||
9ab933ab | 517 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 518 | return -EINVAL; |
57949686 YZ |
519 | |
520 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
521 | dcbnl_app_nest); | |
522 | if (ret) | |
3d1f4869 | 523 | return ret; |
57949686 | 524 | |
57949686 YZ |
525 | /* all must be non-null */ |
526 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
527 | (!app_tb[DCB_APP_ATTR_ID]) || | |
528 | (!app_tb[DCB_APP_ATTR_PRIORITY])) | |
3d1f4869 | 529 | return -EINVAL; |
57949686 YZ |
530 | |
531 | /* either by eth type or by socket number */ | |
532 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
533 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
534 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 535 | return -EINVAL; |
57949686 YZ |
536 | |
537 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
538 | up = nla_get_u8(app_tb[DCB_APP_ATTR_PRIORITY]); | |
539 | ||
9ab933ab | 540 | if (netdev->dcbnl_ops->setapp) { |
3d1f4869 | 541 | ret = netdev->dcbnl_ops->setapp(netdev, idtype, id, up); |
9ab933ab JF |
542 | } else { |
543 | struct dcb_app app; | |
544 | app.selector = idtype; | |
545 | app.protocol = id; | |
546 | app.priority = up; | |
3d1f4869 | 547 | ret = dcb_setapp(netdev, &app); |
9ab933ab JF |
548 | } |
549 | ||
7be99413 | 550 | ret = nla_put_u8(skb, DCB_ATTR_APP, ret); |
08157984 | 551 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SAPP, seq, 0); |
3d1f4869 | 552 | |
57949686 YZ |
553 | return ret; |
554 | } | |
555 | ||
7be99413 TG |
556 | static int __dcbnl_pg_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
557 | struct nlattr **tb, struct sk_buff *skb, int dir) | |
2f90b865 | 558 | { |
2f90b865 AD |
559 | struct nlattr *pg_nest, *param_nest, *data; |
560 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
561 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
562 | u8 prio, pgid, tc_pct, up_map; | |
3d1f4869 | 563 | int ret; |
2f90b865 AD |
564 | int getall = 0; |
565 | int i; | |
566 | ||
3d1f4869 TG |
567 | if (!tb[DCB_ATTR_PG_CFG]) |
568 | return -EINVAL; | |
569 | ||
570 | if (!netdev->dcbnl_ops->getpgtccfgtx || | |
2f90b865 AD |
571 | !netdev->dcbnl_ops->getpgtccfgrx || |
572 | !netdev->dcbnl_ops->getpgbwgcfgtx || | |
573 | !netdev->dcbnl_ops->getpgbwgcfgrx) | |
3d1f4869 | 574 | return -EOPNOTSUPP; |
2f90b865 AD |
575 | |
576 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, | |
577 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest); | |
2f90b865 | 578 | if (ret) |
3d1f4869 | 579 | return ret; |
2f90b865 | 580 | |
7be99413 | 581 | pg_nest = nla_nest_start(skb, DCB_ATTR_PG_CFG); |
2f90b865 | 582 | if (!pg_nest) |
3d1f4869 | 583 | return -EMSGSIZE; |
2f90b865 AD |
584 | |
585 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
586 | getall = 1; | |
587 | ||
588 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
589 | if (!getall && !pg_tb[i]) | |
590 | continue; | |
591 | ||
592 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
593 | data = pg_tb[DCB_PG_ATTR_TC_ALL]; | |
594 | else | |
595 | data = pg_tb[i]; | |
596 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
597 | data, dcbnl_tc_param_nest); | |
598 | if (ret) | |
599 | goto err_pg; | |
600 | ||
7be99413 | 601 | param_nest = nla_nest_start(skb, i); |
2f90b865 AD |
602 | if (!param_nest) |
603 | goto err_pg; | |
604 | ||
605 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
606 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
607 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
608 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
609 | ||
610 | if (dir) { | |
611 | /* Rx */ | |
612 | netdev->dcbnl_ops->getpgtccfgrx(netdev, | |
613 | i - DCB_PG_ATTR_TC_0, &prio, | |
614 | &pgid, &tc_pct, &up_map); | |
615 | } else { | |
616 | /* Tx */ | |
617 | netdev->dcbnl_ops->getpgtccfgtx(netdev, | |
618 | i - DCB_PG_ATTR_TC_0, &prio, | |
619 | &pgid, &tc_pct, &up_map); | |
620 | } | |
621 | ||
622 | if (param_tb[DCB_TC_ATTR_PARAM_PGID] || | |
623 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 624 | ret = nla_put_u8(skb, |
2f90b865 AD |
625 | DCB_TC_ATTR_PARAM_PGID, pgid); |
626 | if (ret) | |
627 | goto err_param; | |
628 | } | |
629 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING] || | |
630 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 631 | ret = nla_put_u8(skb, |
2f90b865 AD |
632 | DCB_TC_ATTR_PARAM_UP_MAPPING, up_map); |
633 | if (ret) | |
634 | goto err_param; | |
635 | } | |
636 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO] || | |
637 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 638 | ret = nla_put_u8(skb, |
2f90b865 AD |
639 | DCB_TC_ATTR_PARAM_STRICT_PRIO, prio); |
640 | if (ret) | |
641 | goto err_param; | |
642 | } | |
643 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT] || | |
644 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 645 | ret = nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, |
2f90b865 AD |
646 | tc_pct); |
647 | if (ret) | |
648 | goto err_param; | |
649 | } | |
7be99413 | 650 | nla_nest_end(skb, param_nest); |
2f90b865 AD |
651 | } |
652 | ||
653 | if (pg_tb[DCB_PG_ATTR_BW_ID_ALL]) | |
654 | getall = 1; | |
655 | else | |
656 | getall = 0; | |
657 | ||
658 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
659 | if (!getall && !pg_tb[i]) | |
660 | continue; | |
661 | ||
662 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
663 | ||
664 | if (dir) { | |
665 | /* Rx */ | |
666 | netdev->dcbnl_ops->getpgbwgcfgrx(netdev, | |
667 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
668 | } else { | |
669 | /* Tx */ | |
670 | netdev->dcbnl_ops->getpgbwgcfgtx(netdev, | |
671 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
672 | } | |
7be99413 | 673 | ret = nla_put_u8(skb, i, tc_pct); |
2f90b865 AD |
674 | if (ret) |
675 | goto err_pg; | |
676 | } | |
677 | ||
7be99413 | 678 | nla_nest_end(skb, pg_nest); |
2f90b865 AD |
679 | |
680 | return 0; | |
681 | ||
682 | err_param: | |
7be99413 | 683 | nla_nest_cancel(skb, param_nest); |
2f90b865 | 684 | err_pg: |
7be99413 | 685 | nla_nest_cancel(skb, pg_nest); |
3d1f4869 TG |
686 | |
687 | return -EMSGSIZE; | |
2f90b865 AD |
688 | } |
689 | ||
7be99413 TG |
690 | static int dcbnl_pgtx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
691 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 692 | { |
7be99413 | 693 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 0); |
2f90b865 AD |
694 | } |
695 | ||
7be99413 TG |
696 | static int dcbnl_pgrx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
697 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 698 | { |
7be99413 | 699 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 1); |
2f90b865 AD |
700 | } |
701 | ||
7be99413 TG |
702 | static int dcbnl_setstate(struct net_device *netdev, struct nlmsghdr *nlh, |
703 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 704 | { |
2f90b865 AD |
705 | u8 value; |
706 | ||
3d1f4869 | 707 | if (!tb[DCB_ATTR_STATE]) |
7be99413 | 708 | return -EINVAL; |
2f90b865 | 709 | |
3d1f4869 TG |
710 | if (!netdev->dcbnl_ops->setstate) |
711 | return -EOPNOTSUPP; | |
712 | ||
2f90b865 AD |
713 | value = nla_get_u8(tb[DCB_ATTR_STATE]); |
714 | ||
7be99413 TG |
715 | return nla_put_u8(skb, DCB_ATTR_STATE, |
716 | netdev->dcbnl_ops->setstate(netdev, value)); | |
2f90b865 AD |
717 | } |
718 | ||
7be99413 TG |
719 | static int dcbnl_setpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
720 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 AD |
721 | { |
722 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1]; | |
723 | int i; | |
3d1f4869 | 724 | int ret; |
2f90b865 AD |
725 | u8 value; |
726 | ||
3d1f4869 TG |
727 | if (!tb[DCB_ATTR_PFC_CFG]) |
728 | return -EINVAL; | |
729 | ||
730 | if (!netdev->dcbnl_ops->setpfccfg) | |
731 | return -EOPNOTSUPP; | |
2f90b865 AD |
732 | |
733 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
734 | tb[DCB_ATTR_PFC_CFG], | |
735 | dcbnl_pfc_up_nest); | |
736 | if (ret) | |
3d1f4869 | 737 | return ret; |
2f90b865 AD |
738 | |
739 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
740 | if (data[i] == NULL) | |
741 | continue; | |
742 | value = nla_get_u8(data[i]); | |
743 | netdev->dcbnl_ops->setpfccfg(netdev, | |
744 | data[i]->nla_type - DCB_PFC_UP_ATTR_0, value); | |
745 | } | |
746 | ||
7be99413 | 747 | return nla_put_u8(skb, DCB_ATTR_PFC_CFG, 0); |
2f90b865 AD |
748 | } |
749 | ||
7be99413 TG |
750 | static int dcbnl_setall(struct net_device *netdev, struct nlmsghdr *nlh, |
751 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 752 | { |
3d1f4869 | 753 | int ret; |
2f90b865 | 754 | |
3d1f4869 TG |
755 | if (!tb[DCB_ATTR_SET_ALL]) |
756 | return -EINVAL; | |
757 | ||
758 | if (!netdev->dcbnl_ops->setall) | |
759 | return -EOPNOTSUPP; | |
2f90b865 | 760 | |
7be99413 TG |
761 | ret = nla_put_u8(skb, DCB_ATTR_SET_ALL, |
762 | netdev->dcbnl_ops->setall(netdev)); | |
08157984 | 763 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SET_ALL, seq, 0); |
2f90b865 AD |
764 | |
765 | return ret; | |
766 | } | |
767 | ||
7be99413 TG |
768 | static int __dcbnl_pg_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
769 | u32 seq, struct nlattr **tb, struct sk_buff *skb, | |
770 | int dir) | |
2f90b865 AD |
771 | { |
772 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
773 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
3d1f4869 | 774 | int ret; |
2f90b865 AD |
775 | int i; |
776 | u8 pgid; | |
777 | u8 up_map; | |
778 | u8 prio; | |
779 | u8 tc_pct; | |
780 | ||
3d1f4869 TG |
781 | if (!tb[DCB_ATTR_PG_CFG]) |
782 | return -EINVAL; | |
783 | ||
784 | if (!netdev->dcbnl_ops->setpgtccfgtx || | |
2f90b865 AD |
785 | !netdev->dcbnl_ops->setpgtccfgrx || |
786 | !netdev->dcbnl_ops->setpgbwgcfgtx || | |
787 | !netdev->dcbnl_ops->setpgbwgcfgrx) | |
3d1f4869 | 788 | return -EOPNOTSUPP; |
2f90b865 AD |
789 | |
790 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, | |
791 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest); | |
792 | if (ret) | |
3d1f4869 | 793 | return ret; |
2f90b865 AD |
794 | |
795 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
796 | if (!pg_tb[i]) | |
797 | continue; | |
798 | ||
799 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
800 | pg_tb[i], dcbnl_tc_param_nest); | |
801 | if (ret) | |
3d1f4869 | 802 | return ret; |
2f90b865 AD |
803 | |
804 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
805 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
806 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
807 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
808 | ||
809 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]) | |
810 | prio = | |
811 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]); | |
812 | ||
813 | if (param_tb[DCB_TC_ATTR_PARAM_PGID]) | |
814 | pgid = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_PGID]); | |
815 | ||
816 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT]) | |
817 | tc_pct = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_BW_PCT]); | |
818 | ||
819 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]) | |
820 | up_map = | |
821 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]); | |
822 | ||
823 | /* dir: Tx = 0, Rx = 1 */ | |
824 | if (dir) { | |
825 | /* Rx */ | |
826 | netdev->dcbnl_ops->setpgtccfgrx(netdev, | |
827 | i - DCB_PG_ATTR_TC_0, | |
828 | prio, pgid, tc_pct, up_map); | |
829 | } else { | |
830 | /* Tx */ | |
831 | netdev->dcbnl_ops->setpgtccfgtx(netdev, | |
832 | i - DCB_PG_ATTR_TC_0, | |
833 | prio, pgid, tc_pct, up_map); | |
834 | } | |
835 | } | |
836 | ||
837 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
838 | if (!pg_tb[i]) | |
839 | continue; | |
840 | ||
841 | tc_pct = nla_get_u8(pg_tb[i]); | |
842 | ||
843 | /* dir: Tx = 0, Rx = 1 */ | |
844 | if (dir) { | |
845 | /* Rx */ | |
846 | netdev->dcbnl_ops->setpgbwgcfgrx(netdev, | |
847 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
848 | } else { | |
849 | /* Tx */ | |
850 | netdev->dcbnl_ops->setpgbwgcfgtx(netdev, | |
851 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
852 | } | |
853 | } | |
854 | ||
bb1dfefd | 855 | return nla_put_u8(skb, DCB_ATTR_PG_CFG, 0); |
2f90b865 AD |
856 | } |
857 | ||
7be99413 TG |
858 | static int dcbnl_pgtx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
859 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 860 | { |
7be99413 | 861 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 0); |
2f90b865 AD |
862 | } |
863 | ||
7be99413 TG |
864 | static int dcbnl_pgrx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
865 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 866 | { |
7be99413 | 867 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 1); |
2f90b865 AD |
868 | } |
869 | ||
7be99413 TG |
870 | static int dcbnl_bcn_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
871 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 | 872 | { |
859ee3c4 AD |
873 | struct nlattr *bcn_nest; |
874 | struct nlattr *bcn_tb[DCB_BCN_ATTR_MAX + 1]; | |
875 | u8 value_byte; | |
876 | u32 value_integer; | |
3d1f4869 | 877 | int ret; |
859ee3c4 AD |
878 | bool getall = false; |
879 | int i; | |
880 | ||
3d1f4869 TG |
881 | if (!tb[DCB_ATTR_BCN]) |
882 | return -EINVAL; | |
883 | ||
884 | if (!netdev->dcbnl_ops->getbcnrp || | |
859ee3c4 | 885 | !netdev->dcbnl_ops->getbcncfg) |
3d1f4869 | 886 | return -EOPNOTSUPP; |
859ee3c4 AD |
887 | |
888 | ret = nla_parse_nested(bcn_tb, DCB_BCN_ATTR_MAX, | |
889 | tb[DCB_ATTR_BCN], dcbnl_bcn_nest); | |
859ee3c4 | 890 | if (ret) |
3d1f4869 | 891 | return ret; |
859ee3c4 | 892 | |
7be99413 | 893 | bcn_nest = nla_nest_start(skb, DCB_ATTR_BCN); |
859ee3c4 | 894 | if (!bcn_nest) |
3d1f4869 | 895 | return -EMSGSIZE; |
859ee3c4 AD |
896 | |
897 | if (bcn_tb[DCB_BCN_ATTR_ALL]) | |
898 | getall = true; | |
899 | ||
900 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
901 | if (!getall && !bcn_tb[i]) | |
902 | continue; | |
903 | ||
904 | netdev->dcbnl_ops->getbcnrp(netdev, i - DCB_BCN_ATTR_RP_0, | |
905 | &value_byte); | |
7be99413 | 906 | ret = nla_put_u8(skb, i, value_byte); |
859ee3c4 AD |
907 | if (ret) |
908 | goto err_bcn; | |
909 | } | |
910 | ||
f4314e81 | 911 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
912 | if (!getall && !bcn_tb[i]) |
913 | continue; | |
914 | ||
915 | netdev->dcbnl_ops->getbcncfg(netdev, i, | |
916 | &value_integer); | |
7be99413 | 917 | ret = nla_put_u32(skb, i, value_integer); |
859ee3c4 AD |
918 | if (ret) |
919 | goto err_bcn; | |
920 | } | |
921 | ||
7be99413 | 922 | nla_nest_end(skb, bcn_nest); |
859ee3c4 AD |
923 | |
924 | return 0; | |
925 | ||
926 | err_bcn: | |
7be99413 | 927 | nla_nest_cancel(skb, bcn_nest); |
859ee3c4 AD |
928 | return ret; |
929 | } | |
930 | ||
7be99413 TG |
931 | static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
932 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 AD |
933 | { |
934 | struct nlattr *data[DCB_BCN_ATTR_MAX + 1]; | |
935 | int i; | |
3d1f4869 | 936 | int ret; |
859ee3c4 AD |
937 | u8 value_byte; |
938 | u32 value_int; | |
939 | ||
3d1f4869 TG |
940 | if (!tb[DCB_ATTR_BCN]) |
941 | return -EINVAL; | |
942 | ||
943 | if (!netdev->dcbnl_ops->setbcncfg || | |
f64f9e71 | 944 | !netdev->dcbnl_ops->setbcnrp) |
3d1f4869 | 945 | return -EOPNOTSUPP; |
859ee3c4 AD |
946 | |
947 | ret = nla_parse_nested(data, DCB_BCN_ATTR_MAX, | |
948 | tb[DCB_ATTR_BCN], | |
949 | dcbnl_pfc_up_nest); | |
950 | if (ret) | |
3d1f4869 | 951 | return ret; |
859ee3c4 AD |
952 | |
953 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
954 | if (data[i] == NULL) | |
955 | continue; | |
956 | value_byte = nla_get_u8(data[i]); | |
957 | netdev->dcbnl_ops->setbcnrp(netdev, | |
958 | data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte); | |
959 | } | |
960 | ||
f4314e81 | 961 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
962 | if (data[i] == NULL) |
963 | continue; | |
964 | value_int = nla_get_u32(data[i]); | |
965 | netdev->dcbnl_ops->setbcncfg(netdev, | |
966 | i, value_int); | |
967 | } | |
968 | ||
3d1f4869 | 969 | return nla_put_u8(skb, DCB_ATTR_BCN, 0); |
859ee3c4 AD |
970 | } |
971 | ||
dc6ed1df SR |
972 | static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb, |
973 | int app_nested_type, int app_info_type, | |
974 | int app_entry_type) | |
eed84713 SR |
975 | { |
976 | struct dcb_peer_app_info info; | |
977 | struct dcb_app *table = NULL; | |
978 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
979 | u16 app_count; | |
980 | int err; | |
981 | ||
982 | ||
983 | /** | |
984 | * retrieve the peer app configuration form the driver. If the driver | |
985 | * handlers fail exit without doing anything | |
986 | */ | |
987 | err = ops->peer_getappinfo(netdev, &info, &app_count); | |
988 | if (!err && app_count) { | |
989 | table = kmalloc(sizeof(struct dcb_app) * app_count, GFP_KERNEL); | |
990 | if (!table) | |
991 | return -ENOMEM; | |
992 | ||
993 | err = ops->peer_getapptable(netdev, table); | |
994 | } | |
995 | ||
996 | if (!err) { | |
997 | u16 i; | |
998 | struct nlattr *app; | |
999 | ||
1000 | /** | |
1001 | * build the message, from here on the only possible failure | |
1002 | * is due to the skb size | |
1003 | */ | |
1004 | err = -EMSGSIZE; | |
1005 | ||
dc6ed1df | 1006 | app = nla_nest_start(skb, app_nested_type); |
eed84713 SR |
1007 | if (!app) |
1008 | goto nla_put_failure; | |
1009 | ||
1eb4c977 DM |
1010 | if (app_info_type && |
1011 | nla_put(skb, app_info_type, sizeof(info), &info)) | |
1012 | goto nla_put_failure; | |
eed84713 | 1013 | |
1eb4c977 DM |
1014 | for (i = 0; i < app_count; i++) { |
1015 | if (nla_put(skb, app_entry_type, sizeof(struct dcb_app), | |
1016 | &table[i])) | |
1017 | goto nla_put_failure; | |
1018 | } | |
eed84713 SR |
1019 | nla_nest_end(skb, app); |
1020 | } | |
1021 | err = 0; | |
1022 | ||
1023 | nla_put_failure: | |
1024 | kfree(table); | |
1025 | return err; | |
1026 | } | |
3e29027a JF |
1027 | |
1028 | /* Handle IEEE 802.1Qaz GET commands. */ | |
314b4778 | 1029 | static int dcbnl_ieee_fill(struct sk_buff *skb, struct net_device *netdev) |
3e29027a | 1030 | { |
9ab933ab JF |
1031 | struct nlattr *ieee, *app; |
1032 | struct dcb_app_type *itr; | |
3e29027a | 1033 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
c7797baf | 1034 | int dcbx; |
3d1f4869 | 1035 | int err; |
3e29027a | 1036 | |
1eb4c977 | 1037 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
3d1f4869 TG |
1038 | return -EMSGSIZE; |
1039 | ||
3e29027a JF |
1040 | ieee = nla_nest_start(skb, DCB_ATTR_IEEE); |
1041 | if (!ieee) | |
3d1f4869 | 1042 | return -EMSGSIZE; |
3e29027a JF |
1043 | |
1044 | if (ops->ieee_getets) { | |
1045 | struct ieee_ets ets; | |
29cd8ae0 | 1046 | memset(&ets, 0, sizeof(ets)); |
3e29027a | 1047 | err = ops->ieee_getets(netdev, &ets); |
1eb4c977 DM |
1048 | if (!err && |
1049 | nla_put(skb, DCB_ATTR_IEEE_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1050 | return -EMSGSIZE; |
3e29027a JF |
1051 | } |
1052 | ||
08f10aff AV |
1053 | if (ops->ieee_getmaxrate) { |
1054 | struct ieee_maxrate maxrate; | |
29cd8ae0 | 1055 | memset(&maxrate, 0, sizeof(maxrate)); |
08f10aff AV |
1056 | err = ops->ieee_getmaxrate(netdev, &maxrate); |
1057 | if (!err) { | |
1058 | err = nla_put(skb, DCB_ATTR_IEEE_MAXRATE, | |
1059 | sizeof(maxrate), &maxrate); | |
1060 | if (err) | |
3d1f4869 | 1061 | return -EMSGSIZE; |
08f10aff AV |
1062 | } |
1063 | } | |
1064 | ||
3e29027a JF |
1065 | if (ops->ieee_getpfc) { |
1066 | struct ieee_pfc pfc; | |
29cd8ae0 | 1067 | memset(&pfc, 0, sizeof(pfc)); |
3e29027a | 1068 | err = ops->ieee_getpfc(netdev, &pfc); |
1eb4c977 DM |
1069 | if (!err && |
1070 | nla_put(skb, DCB_ATTR_IEEE_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1071 | return -EMSGSIZE; |
3e29027a JF |
1072 | } |
1073 | ||
9ab933ab JF |
1074 | app = nla_nest_start(skb, DCB_ATTR_IEEE_APP_TABLE); |
1075 | if (!app) | |
3d1f4869 | 1076 | return -EMSGSIZE; |
9ab933ab JF |
1077 | |
1078 | spin_lock(&dcb_lock); | |
1079 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1080 | if (itr->ifindex == netdev->ifindex) { |
70bfa2d2 DC |
1081 | err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app), |
1082 | &itr->app); | |
1083 | if (err) { | |
1084 | spin_unlock(&dcb_lock); | |
3d1f4869 | 1085 | return -EMSGSIZE; |
70bfa2d2 DC |
1086 | } |
1087 | } | |
9ab933ab | 1088 | } |
c7797baf JF |
1089 | |
1090 | if (netdev->dcbnl_ops->getdcbx) | |
1091 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1092 | else | |
1093 | dcbx = -EOPNOTSUPP; | |
1094 | ||
9ab933ab JF |
1095 | spin_unlock(&dcb_lock); |
1096 | nla_nest_end(skb, app); | |
1097 | ||
eed84713 SR |
1098 | /* get peer info if available */ |
1099 | if (ops->ieee_peer_getets) { | |
1100 | struct ieee_ets ets; | |
29cd8ae0 | 1101 | memset(&ets, 0, sizeof(ets)); |
eed84713 | 1102 | err = ops->ieee_peer_getets(netdev, &ets); |
1eb4c977 DM |
1103 | if (!err && |
1104 | nla_put(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1105 | return -EMSGSIZE; |
eed84713 SR |
1106 | } |
1107 | ||
1108 | if (ops->ieee_peer_getpfc) { | |
1109 | struct ieee_pfc pfc; | |
29cd8ae0 | 1110 | memset(&pfc, 0, sizeof(pfc)); |
eed84713 | 1111 | err = ops->ieee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1112 | if (!err && |
1113 | nla_put(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1114 | return -EMSGSIZE; |
eed84713 SR |
1115 | } |
1116 | ||
1117 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
dc6ed1df SR |
1118 | err = dcbnl_build_peer_app(netdev, skb, |
1119 | DCB_ATTR_IEEE_PEER_APP, | |
1120 | DCB_ATTR_IEEE_APP_UNSPEC, | |
1121 | DCB_ATTR_IEEE_APP); | |
eed84713 | 1122 | if (err) |
3d1f4869 | 1123 | return -EMSGSIZE; |
eed84713 SR |
1124 | } |
1125 | ||
3e29027a | 1126 | nla_nest_end(skb, ieee); |
c7797baf JF |
1127 | if (dcbx >= 0) { |
1128 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1129 | if (err) | |
3d1f4869 | 1130 | return -EMSGSIZE; |
c7797baf | 1131 | } |
3e29027a | 1132 | |
314b4778 | 1133 | return 0; |
3e29027a JF |
1134 | } |
1135 | ||
5b7f7626 SR |
1136 | static int dcbnl_cee_pg_fill(struct sk_buff *skb, struct net_device *dev, |
1137 | int dir) | |
1138 | { | |
1139 | u8 pgid, up_map, prio, tc_pct; | |
1140 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; | |
1141 | int i = dir ? DCB_ATTR_CEE_TX_PG : DCB_ATTR_CEE_RX_PG; | |
1142 | struct nlattr *pg = nla_nest_start(skb, i); | |
1143 | ||
1144 | if (!pg) | |
3d1f4869 | 1145 | return -EMSGSIZE; |
5b7f7626 SR |
1146 | |
1147 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
1148 | struct nlattr *tc_nest = nla_nest_start(skb, i); | |
1149 | ||
1150 | if (!tc_nest) | |
3d1f4869 | 1151 | return -EMSGSIZE; |
5b7f7626 SR |
1152 | |
1153 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
1154 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
1155 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1156 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
1157 | ||
1158 | if (!dir) | |
1159 | ops->getpgtccfgrx(dev, i - DCB_PG_ATTR_TC_0, | |
1160 | &prio, &pgid, &tc_pct, &up_map); | |
1161 | else | |
1162 | ops->getpgtccfgtx(dev, i - DCB_PG_ATTR_TC_0, | |
1163 | &prio, &pgid, &tc_pct, &up_map); | |
1164 | ||
1eb4c977 DM |
1165 | if (nla_put_u8(skb, DCB_TC_ATTR_PARAM_PGID, pgid) || |
1166 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_UP_MAPPING, up_map) || | |
1167 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_STRICT_PRIO, prio) || | |
1168 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, tc_pct)) | |
3d1f4869 | 1169 | return -EMSGSIZE; |
5b7f7626 SR |
1170 | nla_nest_end(skb, tc_nest); |
1171 | } | |
1172 | ||
1173 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
1174 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1175 | ||
1176 | if (!dir) | |
1177 | ops->getpgbwgcfgrx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1178 | &tc_pct); | |
1179 | else | |
1180 | ops->getpgbwgcfgtx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1181 | &tc_pct); | |
1eb4c977 | 1182 | if (nla_put_u8(skb, i, tc_pct)) |
3d1f4869 | 1183 | return -EMSGSIZE; |
5b7f7626 SR |
1184 | } |
1185 | nla_nest_end(skb, pg); | |
1186 | return 0; | |
5b7f7626 SR |
1187 | } |
1188 | ||
1189 | static int dcbnl_cee_fill(struct sk_buff *skb, struct net_device *netdev) | |
1190 | { | |
1191 | struct nlattr *cee, *app; | |
1192 | struct dcb_app_type *itr; | |
1193 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1194 | int dcbx, i, err = -EMSGSIZE; | |
1195 | u8 value; | |
1196 | ||
1eb4c977 DM |
1197 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
1198 | goto nla_put_failure; | |
5b7f7626 SR |
1199 | cee = nla_nest_start(skb, DCB_ATTR_CEE); |
1200 | if (!cee) | |
1201 | goto nla_put_failure; | |
1202 | ||
1203 | /* local pg */ | |
1204 | if (ops->getpgtccfgtx && ops->getpgbwgcfgtx) { | |
1205 | err = dcbnl_cee_pg_fill(skb, netdev, 1); | |
1206 | if (err) | |
1207 | goto nla_put_failure; | |
1208 | } | |
1209 | ||
1210 | if (ops->getpgtccfgrx && ops->getpgbwgcfgrx) { | |
1211 | err = dcbnl_cee_pg_fill(skb, netdev, 0); | |
1212 | if (err) | |
1213 | goto nla_put_failure; | |
1214 | } | |
1215 | ||
1216 | /* local pfc */ | |
1217 | if (ops->getpfccfg) { | |
1218 | struct nlattr *pfc_nest = nla_nest_start(skb, DCB_ATTR_CEE_PFC); | |
1219 | ||
1220 | if (!pfc_nest) | |
1221 | goto nla_put_failure; | |
1222 | ||
1223 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
1224 | ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, &value); | |
1eb4c977 DM |
1225 | if (nla_put_u8(skb, i, value)) |
1226 | goto nla_put_failure; | |
5b7f7626 SR |
1227 | } |
1228 | nla_nest_end(skb, pfc_nest); | |
1229 | } | |
1230 | ||
1231 | /* local app */ | |
1232 | spin_lock(&dcb_lock); | |
1233 | app = nla_nest_start(skb, DCB_ATTR_CEE_APP_TABLE); | |
1234 | if (!app) | |
40f5d72a | 1235 | goto dcb_unlock; |
5b7f7626 SR |
1236 | |
1237 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1238 | if (itr->ifindex == netdev->ifindex) { |
5b7f7626 SR |
1239 | struct nlattr *app_nest = nla_nest_start(skb, |
1240 | DCB_ATTR_APP); | |
1241 | if (!app_nest) | |
1242 | goto dcb_unlock; | |
1243 | ||
1244 | err = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, | |
1245 | itr->app.selector); | |
1246 | if (err) | |
1247 | goto dcb_unlock; | |
1248 | ||
1249 | err = nla_put_u16(skb, DCB_APP_ATTR_ID, | |
1250 | itr->app.protocol); | |
1251 | if (err) | |
1252 | goto dcb_unlock; | |
1253 | ||
1254 | err = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, | |
1255 | itr->app.priority); | |
1256 | if (err) | |
1257 | goto dcb_unlock; | |
1258 | ||
1259 | nla_nest_end(skb, app_nest); | |
1260 | } | |
1261 | } | |
1262 | nla_nest_end(skb, app); | |
1263 | ||
1264 | if (netdev->dcbnl_ops->getdcbx) | |
1265 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1266 | else | |
1267 | dcbx = -EOPNOTSUPP; | |
1268 | ||
1269 | spin_unlock(&dcb_lock); | |
1270 | ||
1271 | /* features flags */ | |
1272 | if (ops->getfeatcfg) { | |
1273 | struct nlattr *feat = nla_nest_start(skb, DCB_ATTR_CEE_FEAT); | |
1274 | if (!feat) | |
1275 | goto nla_put_failure; | |
1276 | ||
1277 | for (i = DCB_FEATCFG_ATTR_ALL + 1; i <= DCB_FEATCFG_ATTR_MAX; | |
1278 | i++) | |
1eb4c977 DM |
1279 | if (!ops->getfeatcfg(netdev, i, &value) && |
1280 | nla_put_u8(skb, i, value)) | |
1281 | goto nla_put_failure; | |
5b7f7626 SR |
1282 | |
1283 | nla_nest_end(skb, feat); | |
1284 | } | |
1285 | ||
1286 | /* peer info if available */ | |
1287 | if (ops->cee_peer_getpg) { | |
1288 | struct cee_pg pg; | |
29cd8ae0 | 1289 | memset(&pg, 0, sizeof(pg)); |
5b7f7626 | 1290 | err = ops->cee_peer_getpg(netdev, &pg); |
1eb4c977 DM |
1291 | if (!err && |
1292 | nla_put(skb, DCB_ATTR_CEE_PEER_PG, sizeof(pg), &pg)) | |
1293 | goto nla_put_failure; | |
5b7f7626 SR |
1294 | } |
1295 | ||
1296 | if (ops->cee_peer_getpfc) { | |
1297 | struct cee_pfc pfc; | |
29cd8ae0 | 1298 | memset(&pfc, 0, sizeof(pfc)); |
5b7f7626 | 1299 | err = ops->cee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1300 | if (!err && |
1301 | nla_put(skb, DCB_ATTR_CEE_PEER_PFC, sizeof(pfc), &pfc)) | |
1302 | goto nla_put_failure; | |
5b7f7626 SR |
1303 | } |
1304 | ||
1305 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
1306 | err = dcbnl_build_peer_app(netdev, skb, | |
1307 | DCB_ATTR_CEE_PEER_APP_TABLE, | |
1308 | DCB_ATTR_CEE_PEER_APP_INFO, | |
1309 | DCB_ATTR_CEE_PEER_APP); | |
1310 | if (err) | |
1311 | goto nla_put_failure; | |
1312 | } | |
1313 | nla_nest_end(skb, cee); | |
1314 | ||
1315 | /* DCBX state */ | |
1316 | if (dcbx >= 0) { | |
1317 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1318 | if (err) | |
1319 | goto nla_put_failure; | |
1320 | } | |
1321 | return 0; | |
1322 | ||
1323 | dcb_unlock: | |
1324 | spin_unlock(&dcb_lock); | |
1325 | nla_put_failure: | |
1326 | return err; | |
1327 | } | |
1328 | ||
1329 | static int dcbnl_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1330 | u32 seq, u32 portid, int dcbx_ver) |
314b4778 JF |
1331 | { |
1332 | struct net *net = dev_net(dev); | |
1333 | struct sk_buff *skb; | |
1334 | struct nlmsghdr *nlh; | |
314b4778 JF |
1335 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; |
1336 | int err; | |
1337 | ||
1338 | if (!ops) | |
1339 | return -EOPNOTSUPP; | |
1340 | ||
15e47304 | 1341 | skb = dcbnl_newmsg(event, cmd, portid, seq, 0, &nlh); |
314b4778 JF |
1342 | if (!skb) |
1343 | return -ENOBUFS; | |
1344 | ||
5b7f7626 SR |
1345 | if (dcbx_ver == DCB_CAP_DCBX_VER_IEEE) |
1346 | err = dcbnl_ieee_fill(skb, dev); | |
1347 | else | |
1348 | err = dcbnl_cee_fill(skb, dev); | |
1349 | ||
314b4778 JF |
1350 | if (err < 0) { |
1351 | /* Report error to broadcast listeners */ | |
ab6d4707 | 1352 | nlmsg_free(skb); |
314b4778 JF |
1353 | rtnl_set_sk_err(net, RTNLGRP_DCB, err); |
1354 | } else { | |
1355 | /* End nlmsg and notify broadcast listeners */ | |
1356 | nlmsg_end(skb, nlh); | |
1357 | rtnl_notify(skb, net, 0, RTNLGRP_DCB, NULL, GFP_KERNEL); | |
1358 | } | |
1359 | ||
1360 | return err; | |
1361 | } | |
5b7f7626 SR |
1362 | |
1363 | int dcbnl_ieee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1364 | u32 seq, u32 portid) |
5b7f7626 | 1365 | { |
15e47304 | 1366 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_IEEE); |
5b7f7626 SR |
1367 | } |
1368 | EXPORT_SYMBOL(dcbnl_ieee_notify); | |
1369 | ||
1370 | int dcbnl_cee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1371 | u32 seq, u32 portid) |
5b7f7626 | 1372 | { |
15e47304 | 1373 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_CEE); |
5b7f7626 SR |
1374 | } |
1375 | EXPORT_SYMBOL(dcbnl_cee_notify); | |
314b4778 JF |
1376 | |
1377 | /* Handle IEEE 802.1Qaz SET commands. If any requested operation can not | |
1378 | * be completed the entire msg is aborted and error value is returned. | |
1379 | * No attempt is made to reconcile the case where only part of the | |
1380 | * cmd can be completed. | |
1381 | */ | |
7be99413 TG |
1382 | static int dcbnl_ieee_set(struct net_device *netdev, struct nlmsghdr *nlh, |
1383 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 JF |
1384 | { |
1385 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1386 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1387 | int err; |
314b4778 JF |
1388 | |
1389 | if (!ops) | |
3d1f4869 | 1390 | return -EOPNOTSUPP; |
314b4778 | 1391 | |
4003b658 JF |
1392 | if (!tb[DCB_ATTR_IEEE]) |
1393 | return -EINVAL; | |
1394 | ||
314b4778 JF |
1395 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, |
1396 | tb[DCB_ATTR_IEEE], dcbnl_ieee_policy); | |
1397 | if (err) | |
1398 | return err; | |
1399 | ||
1400 | if (ieee[DCB_ATTR_IEEE_ETS] && ops->ieee_setets) { | |
1401 | struct ieee_ets *ets = nla_data(ieee[DCB_ATTR_IEEE_ETS]); | |
1402 | err = ops->ieee_setets(netdev, ets); | |
1403 | if (err) | |
1404 | goto err; | |
1405 | } | |
1406 | ||
08f10aff AV |
1407 | if (ieee[DCB_ATTR_IEEE_MAXRATE] && ops->ieee_setmaxrate) { |
1408 | struct ieee_maxrate *maxrate = | |
1409 | nla_data(ieee[DCB_ATTR_IEEE_MAXRATE]); | |
1410 | err = ops->ieee_setmaxrate(netdev, maxrate); | |
1411 | if (err) | |
1412 | goto err; | |
1413 | } | |
1414 | ||
314b4778 JF |
1415 | if (ieee[DCB_ATTR_IEEE_PFC] && ops->ieee_setpfc) { |
1416 | struct ieee_pfc *pfc = nla_data(ieee[DCB_ATTR_IEEE_PFC]); | |
1417 | err = ops->ieee_setpfc(netdev, pfc); | |
1418 | if (err) | |
1419 | goto err; | |
1420 | } | |
1421 | ||
1422 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1423 | struct nlattr *attr; | |
1424 | int rem; | |
1425 | ||
1426 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1427 | struct dcb_app *app_data; | |
1428 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1429 | continue; | |
1430 | app_data = nla_data(attr); | |
1431 | if (ops->ieee_setapp) | |
1432 | err = ops->ieee_setapp(netdev, app_data); | |
1433 | else | |
b6db2174 | 1434 | err = dcb_ieee_setapp(netdev, app_data); |
314b4778 JF |
1435 | if (err) |
1436 | goto err; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | err: | |
7be99413 | 1441 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1442 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_SET, seq, 0); |
314b4778 JF |
1443 | return err; |
1444 | } | |
1445 | ||
7be99413 TG |
1446 | static int dcbnl_ieee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1447 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 | 1448 | { |
314b4778 | 1449 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
314b4778 JF |
1450 | |
1451 | if (!ops) | |
1452 | return -EOPNOTSUPP; | |
1453 | ||
7be99413 | 1454 | return dcbnl_ieee_fill(skb, netdev); |
314b4778 | 1455 | } |
f9ae7e4b | 1456 | |
7be99413 TG |
1457 | static int dcbnl_ieee_del(struct net_device *netdev, struct nlmsghdr *nlh, |
1458 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
f9ae7e4b JF |
1459 | { |
1460 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1461 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1462 | int err; |
f9ae7e4b JF |
1463 | |
1464 | if (!ops) | |
1465 | return -EOPNOTSUPP; | |
1466 | ||
1467 | if (!tb[DCB_ATTR_IEEE]) | |
1468 | return -EINVAL; | |
1469 | ||
1470 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, | |
1471 | tb[DCB_ATTR_IEEE], dcbnl_ieee_policy); | |
1472 | if (err) | |
1473 | return err; | |
1474 | ||
1475 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1476 | struct nlattr *attr; | |
1477 | int rem; | |
1478 | ||
1479 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1480 | struct dcb_app *app_data; | |
1481 | ||
1482 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1483 | continue; | |
1484 | app_data = nla_data(attr); | |
1485 | if (ops->ieee_delapp) | |
1486 | err = ops->ieee_delapp(netdev, app_data); | |
1487 | else | |
1488 | err = dcb_ieee_delapp(netdev, app_data); | |
1489 | if (err) | |
1490 | goto err; | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | err: | |
7be99413 | 1495 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1496 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_DEL, seq, 0); |
f9ae7e4b JF |
1497 | return err; |
1498 | } | |
1499 | ||
1500 | ||
6241b625 | 1501 | /* DCBX configuration */ |
7be99413 TG |
1502 | static int dcbnl_getdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1503 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1504 | { |
6241b625 | 1505 | if (!netdev->dcbnl_ops->getdcbx) |
7f891cf1 | 1506 | return -EOPNOTSUPP; |
6241b625 | 1507 | |
7be99413 TG |
1508 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1509 | netdev->dcbnl_ops->getdcbx(netdev)); | |
6241b625 SR |
1510 | } |
1511 | ||
7be99413 TG |
1512 | static int dcbnl_setdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1513 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1514 | { |
6241b625 SR |
1515 | u8 value; |
1516 | ||
7f891cf1 SR |
1517 | if (!netdev->dcbnl_ops->setdcbx) |
1518 | return -EOPNOTSUPP; | |
1519 | ||
1520 | if (!tb[DCB_ATTR_DCBX]) | |
1521 | return -EINVAL; | |
6241b625 SR |
1522 | |
1523 | value = nla_get_u8(tb[DCB_ATTR_DCBX]); | |
1524 | ||
7be99413 TG |
1525 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1526 | netdev->dcbnl_ops->setdcbx(netdev, value)); | |
6241b625 SR |
1527 | } |
1528 | ||
7be99413 TG |
1529 | static int dcbnl_getfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1530 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e | 1531 | { |
ea45fe4e SR |
1532 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1], *nest; |
1533 | u8 value; | |
7f891cf1 | 1534 | int ret, i; |
ea45fe4e SR |
1535 | int getall = 0; |
1536 | ||
7f891cf1 SR |
1537 | if (!netdev->dcbnl_ops->getfeatcfg) |
1538 | return -EOPNOTSUPP; | |
1539 | ||
1540 | if (!tb[DCB_ATTR_FEATCFG]) | |
1541 | return -EINVAL; | |
ea45fe4e SR |
1542 | |
1543 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG], | |
1544 | dcbnl_featcfg_nest); | |
7f891cf1 | 1545 | if (ret) |
7be99413 | 1546 | return ret; |
ea45fe4e | 1547 | |
7be99413 TG |
1548 | nest = nla_nest_start(skb, DCB_ATTR_FEATCFG); |
1549 | if (!nest) | |
1550 | return -EMSGSIZE; | |
ea45fe4e SR |
1551 | |
1552 | if (data[DCB_FEATCFG_ATTR_ALL]) | |
1553 | getall = 1; | |
1554 | ||
1555 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1556 | if (!getall && !data[i]) | |
1557 | continue; | |
1558 | ||
1559 | ret = netdev->dcbnl_ops->getfeatcfg(netdev, i, &value); | |
7f891cf1 | 1560 | if (!ret) |
7be99413 | 1561 | ret = nla_put_u8(skb, i, value); |
ea45fe4e | 1562 | |
7f891cf1 | 1563 | if (ret) { |
7be99413 | 1564 | nla_nest_cancel(skb, nest); |
7f891cf1 SR |
1565 | goto nla_put_failure; |
1566 | } | |
ea45fe4e | 1567 | } |
7be99413 | 1568 | nla_nest_end(skb, nest); |
ea45fe4e | 1569 | |
7f891cf1 | 1570 | nla_put_failure: |
ea45fe4e SR |
1571 | return ret; |
1572 | } | |
1573 | ||
7be99413 TG |
1574 | static int dcbnl_setfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1575 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e SR |
1576 | { |
1577 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1]; | |
7f891cf1 | 1578 | int ret, i; |
ea45fe4e | 1579 | u8 value; |
ea45fe4e | 1580 | |
7f891cf1 SR |
1581 | if (!netdev->dcbnl_ops->setfeatcfg) |
1582 | return -ENOTSUPP; | |
1583 | ||
1584 | if (!tb[DCB_ATTR_FEATCFG]) | |
1585 | return -EINVAL; | |
ea45fe4e SR |
1586 | |
1587 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, tb[DCB_ATTR_FEATCFG], | |
1588 | dcbnl_featcfg_nest); | |
1589 | ||
7f891cf1 | 1590 | if (ret) |
ea45fe4e | 1591 | goto err; |
ea45fe4e SR |
1592 | |
1593 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1594 | if (data[i] == NULL) | |
1595 | continue; | |
1596 | ||
1597 | value = nla_get_u8(data[i]); | |
1598 | ||
1599 | ret = netdev->dcbnl_ops->setfeatcfg(netdev, i, value); | |
1600 | ||
1601 | if (ret) | |
7f891cf1 | 1602 | goto err; |
ea45fe4e | 1603 | } |
ea45fe4e | 1604 | err: |
7be99413 | 1605 | ret = nla_put_u8(skb, DCB_ATTR_FEATCFG, ret); |
7f891cf1 | 1606 | |
ea45fe4e SR |
1607 | return ret; |
1608 | } | |
1609 | ||
dc6ed1df | 1610 | /* Handle CEE DCBX GET commands. */ |
7be99413 TG |
1611 | static int dcbnl_cee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1612 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
dc6ed1df | 1613 | { |
dc6ed1df | 1614 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
dc6ed1df SR |
1615 | |
1616 | if (!ops) | |
1617 | return -EOPNOTSUPP; | |
1618 | ||
7be99413 | 1619 | return dcbnl_cee_fill(skb, netdev); |
dc6ed1df SR |
1620 | } |
1621 | ||
33a03aad TG |
1622 | struct reply_func { |
1623 | /* reply netlink message type */ | |
1624 | int type; | |
1625 | ||
1626 | /* function to fill message contents */ | |
1627 | int (*cb)(struct net_device *, struct nlmsghdr *, u32, | |
1628 | struct nlattr **, struct sk_buff *); | |
1629 | }; | |
1630 | ||
1631 | static const struct reply_func reply_funcs[DCB_CMD_MAX+1] = { | |
7be99413 TG |
1632 | [DCB_CMD_GSTATE] = { RTM_GETDCB, dcbnl_getstate }, |
1633 | [DCB_CMD_SSTATE] = { RTM_SETDCB, dcbnl_setstate }, | |
1634 | [DCB_CMD_PFC_GCFG] = { RTM_GETDCB, dcbnl_getpfccfg }, | |
1635 | [DCB_CMD_PFC_SCFG] = { RTM_SETDCB, dcbnl_setpfccfg }, | |
1636 | [DCB_CMD_GPERM_HWADDR] = { RTM_GETDCB, dcbnl_getperm_hwaddr }, | |
1637 | [DCB_CMD_GCAP] = { RTM_GETDCB, dcbnl_getcap }, | |
1638 | [DCB_CMD_GNUMTCS] = { RTM_GETDCB, dcbnl_getnumtcs }, | |
1639 | [DCB_CMD_SNUMTCS] = { RTM_SETDCB, dcbnl_setnumtcs }, | |
1640 | [DCB_CMD_PFC_GSTATE] = { RTM_GETDCB, dcbnl_getpfcstate }, | |
1641 | [DCB_CMD_PFC_SSTATE] = { RTM_SETDCB, dcbnl_setpfcstate }, | |
1642 | [DCB_CMD_GAPP] = { RTM_GETDCB, dcbnl_getapp }, | |
1643 | [DCB_CMD_SAPP] = { RTM_SETDCB, dcbnl_setapp }, | |
1644 | [DCB_CMD_PGTX_GCFG] = { RTM_GETDCB, dcbnl_pgtx_getcfg }, | |
1645 | [DCB_CMD_PGTX_SCFG] = { RTM_SETDCB, dcbnl_pgtx_setcfg }, | |
1646 | [DCB_CMD_PGRX_GCFG] = { RTM_GETDCB, dcbnl_pgrx_getcfg }, | |
1647 | [DCB_CMD_PGRX_SCFG] = { RTM_SETDCB, dcbnl_pgrx_setcfg }, | |
1648 | [DCB_CMD_SET_ALL] = { RTM_SETDCB, dcbnl_setall }, | |
1649 | [DCB_CMD_BCN_GCFG] = { RTM_GETDCB, dcbnl_bcn_getcfg }, | |
1650 | [DCB_CMD_BCN_SCFG] = { RTM_SETDCB, dcbnl_bcn_setcfg }, | |
1651 | [DCB_CMD_IEEE_GET] = { RTM_GETDCB, dcbnl_ieee_get }, | |
1652 | [DCB_CMD_IEEE_SET] = { RTM_SETDCB, dcbnl_ieee_set }, | |
1653 | [DCB_CMD_IEEE_DEL] = { RTM_SETDCB, dcbnl_ieee_del }, | |
1654 | [DCB_CMD_GDCBX] = { RTM_GETDCB, dcbnl_getdcbx }, | |
1655 | [DCB_CMD_SDCBX] = { RTM_SETDCB, dcbnl_setdcbx }, | |
1656 | [DCB_CMD_GFEATCFG] = { RTM_GETDCB, dcbnl_getfeatcfg }, | |
1657 | [DCB_CMD_SFEATCFG] = { RTM_SETDCB, dcbnl_setfeatcfg }, | |
1658 | [DCB_CMD_CEE_GET] = { RTM_GETDCB, dcbnl_cee_get }, | |
33a03aad TG |
1659 | }; |
1660 | ||
661d2967 | 1661 | static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh) |
2f90b865 AD |
1662 | { |
1663 | struct net *net = sock_net(skb->sk); | |
1664 | struct net_device *netdev; | |
7a282bc3 | 1665 | struct dcbmsg *dcb = nlmsg_data(nlh); |
2f90b865 | 1666 | struct nlattr *tb[DCB_ATTR_MAX + 1]; |
15e47304 | 1667 | u32 portid = skb ? NETLINK_CB(skb).portid : 0; |
2f90b865 | 1668 | int ret = -EINVAL; |
33a03aad | 1669 | struct sk_buff *reply_skb; |
39912f9c | 1670 | struct nlmsghdr *reply_nlh = NULL; |
33a03aad | 1671 | const struct reply_func *fn; |
2f90b865 | 1672 | |
dfc47ef8 EB |
1673 | if ((nlh->nlmsg_type == RTM_SETDCB) && !capable(CAP_NET_ADMIN)) |
1674 | return -EPERM; | |
1675 | ||
2f90b865 AD |
1676 | ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX, |
1677 | dcbnl_rtnl_policy); | |
1678 | if (ret < 0) | |
1679 | return ret; | |
1680 | ||
33a03aad TG |
1681 | if (dcb->cmd > DCB_CMD_MAX) |
1682 | return -EINVAL; | |
1683 | ||
1684 | /* check if a reply function has been defined for the command */ | |
1685 | fn = &reply_funcs[dcb->cmd]; | |
1686 | if (!fn->cb) | |
1687 | return -EOPNOTSUPP; | |
1688 | ||
2f90b865 AD |
1689 | if (!tb[DCB_ATTR_IFNAME]) |
1690 | return -EINVAL; | |
1691 | ||
7c77ab24 | 1692 | netdev = dev_get_by_name(net, nla_data(tb[DCB_ATTR_IFNAME])); |
2f90b865 | 1693 | if (!netdev) |
3d1f4869 | 1694 | return -ENODEV; |
2f90b865 | 1695 | |
3d1f4869 TG |
1696 | if (!netdev->dcbnl_ops) { |
1697 | ret = -EOPNOTSUPP; | |
1698 | goto out; | |
1699 | } | |
2f90b865 | 1700 | |
15e47304 | 1701 | reply_skb = dcbnl_newmsg(fn->type, dcb->cmd, portid, nlh->nlmsg_seq, |
33a03aad TG |
1702 | nlh->nlmsg_flags, &reply_nlh); |
1703 | if (!reply_skb) { | |
1704 | ret = -ENOBUFS; | |
1705 | goto out; | |
1706 | } | |
1707 | ||
1708 | ret = fn->cb(netdev, nlh, nlh->nlmsg_seq, tb, reply_skb); | |
1709 | if (ret < 0) { | |
1710 | nlmsg_free(reply_skb); | |
1711 | goto out; | |
1712 | } | |
1713 | ||
1714 | nlmsg_end(reply_skb, reply_nlh); | |
1715 | ||
7c77ab24 | 1716 | ret = rtnl_unicast(reply_skb, net, portid); |
2f90b865 AD |
1717 | out: |
1718 | dev_put(netdev); | |
1719 | return ret; | |
1720 | } | |
1721 | ||
716b31ab TG |
1722 | static struct dcb_app_type *dcb_app_lookup(const struct dcb_app *app, |
1723 | int ifindex, int prio) | |
1724 | { | |
1725 | struct dcb_app_type *itr; | |
1726 | ||
1727 | list_for_each_entry(itr, &dcb_app_list, list) { | |
1728 | if (itr->app.selector == app->selector && | |
1729 | itr->app.protocol == app->protocol && | |
1730 | itr->ifindex == ifindex && | |
1731 | (!prio || itr->app.priority == prio)) | |
1732 | return itr; | |
1733 | } | |
1734 | ||
1735 | return NULL; | |
1736 | } | |
1737 | ||
4e4f2f69 TG |
1738 | static int dcb_app_add(const struct dcb_app *app, int ifindex) |
1739 | { | |
1740 | struct dcb_app_type *entry; | |
1741 | ||
1742 | entry = kmalloc(sizeof(*entry), GFP_ATOMIC); | |
1743 | if (!entry) | |
1744 | return -ENOMEM; | |
1745 | ||
1746 | memcpy(&entry->app, app, sizeof(*app)); | |
1747 | entry->ifindex = ifindex; | |
1748 | list_add(&entry->list, &dcb_app_list); | |
1749 | ||
1750 | return 0; | |
1751 | } | |
1752 | ||
9ab933ab JF |
1753 | /** |
1754 | * dcb_getapp - retrieve the DCBX application user priority | |
1755 | * | |
1756 | * On success returns a non-zero 802.1p user priority bitmap | |
1757 | * otherwise returns 0 as the invalid user priority bitmap to | |
1758 | * indicate an error. | |
1759 | */ | |
1760 | u8 dcb_getapp(struct net_device *dev, struct dcb_app *app) | |
1761 | { | |
1762 | struct dcb_app_type *itr; | |
1763 | u8 prio = 0; | |
1764 | ||
1765 | spin_lock(&dcb_lock); | |
716b31ab TG |
1766 | if ((itr = dcb_app_lookup(app, dev->ifindex, 0))) |
1767 | prio = itr->app.priority; | |
9ab933ab JF |
1768 | spin_unlock(&dcb_lock); |
1769 | ||
1770 | return prio; | |
1771 | } | |
1772 | EXPORT_SYMBOL(dcb_getapp); | |
1773 | ||
1774 | /** | |
b6db2174 | 1775 | * dcb_setapp - add CEE dcb application data to app list |
9ab933ab | 1776 | * |
b6db2174 JF |
1777 | * Priority 0 is an invalid priority in CEE spec. This routine |
1778 | * removes applications from the app list if the priority is | |
1779 | * set to zero. | |
9ab933ab | 1780 | */ |
ab6baf98 | 1781 | int dcb_setapp(struct net_device *dev, struct dcb_app *new) |
9ab933ab JF |
1782 | { |
1783 | struct dcb_app_type *itr; | |
7ec79270 | 1784 | struct dcb_app_type event; |
4e4f2f69 | 1785 | int err = 0; |
7ec79270 | 1786 | |
e290ed81 | 1787 | event.ifindex = dev->ifindex; |
7ec79270 | 1788 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1789 | if (dev->dcbnl_ops->getdcbx) |
1790 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
9ab933ab JF |
1791 | |
1792 | spin_lock(&dcb_lock); | |
1793 | /* Search for existing match and replace */ | |
716b31ab TG |
1794 | if ((itr = dcb_app_lookup(new, dev->ifindex, 0))) { |
1795 | if (new->priority) | |
1796 | itr->app.priority = new->priority; | |
1797 | else { | |
1798 | list_del(&itr->list); | |
1799 | kfree(itr); | |
9ab933ab | 1800 | } |
716b31ab | 1801 | goto out; |
9ab933ab JF |
1802 | } |
1803 | /* App type does not exist add new application type */ | |
4e4f2f69 TG |
1804 | if (new->priority) |
1805 | err = dcb_app_add(new, dev->ifindex); | |
9ab933ab JF |
1806 | out: |
1807 | spin_unlock(&dcb_lock); | |
4e4f2f69 TG |
1808 | if (!err) |
1809 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1810 | return err; | |
9ab933ab JF |
1811 | } |
1812 | EXPORT_SYMBOL(dcb_setapp); | |
1813 | ||
a364c8cf JF |
1814 | /** |
1815 | * dcb_ieee_getapp_mask - retrieve the IEEE DCB application priority | |
1816 | * | |
1817 | * Helper routine which on success returns a non-zero 802.1Qaz user | |
1818 | * priority bitmap otherwise returns 0 to indicate the dcb_app was | |
1819 | * not found in APP list. | |
1820 | */ | |
1821 | u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app) | |
1822 | { | |
1823 | struct dcb_app_type *itr; | |
1824 | u8 prio = 0; | |
1825 | ||
1826 | spin_lock(&dcb_lock); | |
716b31ab TG |
1827 | if ((itr = dcb_app_lookup(app, dev->ifindex, 0))) |
1828 | prio |= 1 << itr->app.priority; | |
a364c8cf JF |
1829 | spin_unlock(&dcb_lock); |
1830 | ||
1831 | return prio; | |
1832 | } | |
1833 | EXPORT_SYMBOL(dcb_ieee_getapp_mask); | |
1834 | ||
b6db2174 JF |
1835 | /** |
1836 | * dcb_ieee_setapp - add IEEE dcb application data to app list | |
1837 | * | |
1838 | * This adds Application data to the list. Multiple application | |
1839 | * entries may exists for the same selector and protocol as long | |
1840 | * as the priorities are different. | |
1841 | */ | |
1842 | int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new) | |
1843 | { | |
b6db2174 JF |
1844 | struct dcb_app_type event; |
1845 | int err = 0; | |
1846 | ||
e290ed81 | 1847 | event.ifindex = dev->ifindex; |
b6db2174 | 1848 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1849 | if (dev->dcbnl_ops->getdcbx) |
1850 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
b6db2174 JF |
1851 | |
1852 | spin_lock(&dcb_lock); | |
1853 | /* Search for existing match and abort if found */ | |
716b31ab TG |
1854 | if (dcb_app_lookup(new, dev->ifindex, new->priority)) { |
1855 | err = -EEXIST; | |
1856 | goto out; | |
b6db2174 JF |
1857 | } |
1858 | ||
4e4f2f69 | 1859 | err = dcb_app_add(new, dev->ifindex); |
b6db2174 JF |
1860 | out: |
1861 | spin_unlock(&dcb_lock); | |
1862 | if (!err) | |
1863 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1864 | return err; | |
1865 | } | |
1866 | EXPORT_SYMBOL(dcb_ieee_setapp); | |
1867 | ||
f9ae7e4b JF |
1868 | /** |
1869 | * dcb_ieee_delapp - delete IEEE dcb application data from list | |
1870 | * | |
1871 | * This removes a matching APP data from the APP list | |
1872 | */ | |
1873 | int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del) | |
1874 | { | |
1875 | struct dcb_app_type *itr; | |
1876 | struct dcb_app_type event; | |
1877 | int err = -ENOENT; | |
1878 | ||
e290ed81 | 1879 | event.ifindex = dev->ifindex; |
f9ae7e4b | 1880 | memcpy(&event.app, del, sizeof(event.app)); |
6bd0e1cb JF |
1881 | if (dev->dcbnl_ops->getdcbx) |
1882 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
f9ae7e4b JF |
1883 | |
1884 | spin_lock(&dcb_lock); | |
1885 | /* Search for existing match and remove it. */ | |
716b31ab TG |
1886 | if ((itr = dcb_app_lookup(del, dev->ifindex, del->priority))) { |
1887 | list_del(&itr->list); | |
1888 | kfree(itr); | |
1889 | err = 0; | |
f9ae7e4b JF |
1890 | } |
1891 | ||
f9ae7e4b JF |
1892 | spin_unlock(&dcb_lock); |
1893 | if (!err) | |
1894 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1895 | return err; | |
1896 | } | |
1897 | EXPORT_SYMBOL(dcb_ieee_delapp); | |
1898 | ||
7c14c3f1 | 1899 | static void dcb_flushapp(void) |
9ab933ab JF |
1900 | { |
1901 | struct dcb_app_type *app; | |
2a8fe003 | 1902 | struct dcb_app_type *tmp; |
9ab933ab JF |
1903 | |
1904 | spin_lock(&dcb_lock); | |
2a8fe003 | 1905 | list_for_each_entry_safe(app, tmp, &dcb_app_list, list) { |
9ab933ab JF |
1906 | list_del(&app->list); |
1907 | kfree(app); | |
1908 | } | |
1909 | spin_unlock(&dcb_lock); | |
1910 | } | |
1911 | ||
2f90b865 AD |
1912 | static int __init dcbnl_init(void) |
1913 | { | |
9ab933ab JF |
1914 | INIT_LIST_HEAD(&dcb_app_list); |
1915 | ||
c7ac8679 GR |
1916 | rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, NULL); |
1917 | rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, NULL); | |
2f90b865 AD |
1918 | |
1919 | return 0; | |
1920 | } | |
1921 | module_init(dcbnl_init); | |
1922 | ||
1923 | static void __exit dcbnl_exit(void) | |
1924 | { | |
1925 | rtnl_unregister(PF_UNSPEC, RTM_GETDCB); | |
1926 | rtnl_unregister(PF_UNSPEC, RTM_SETDCB); | |
9ab933ab | 1927 | dcb_flushapp(); |
2f90b865 AD |
1928 | } |
1929 | module_exit(dcbnl_exit); |