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 | 15 | * |
36b9ad80 | 16 | * Description: Data Center Bridging netlink interface |
2f90b865 AD |
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> |
36b9ad80 | 28 | #include <linux/init.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 | ||
2f90b865 AD |
52 | /**************** DCB attribute policies *************************************/ |
53 | ||
54 | /* DCB netlink attributes policy */ | |
b54452b0 | 55 | static const struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = { |
859ee3c4 AD |
56 | [DCB_ATTR_IFNAME] = {.type = NLA_NUL_STRING, .len = IFNAMSIZ - 1}, |
57 | [DCB_ATTR_STATE] = {.type = NLA_U8}, | |
58 | [DCB_ATTR_PFC_CFG] = {.type = NLA_NESTED}, | |
59 | [DCB_ATTR_PG_CFG] = {.type = NLA_NESTED}, | |
60 | [DCB_ATTR_SET_ALL] = {.type = NLA_U8}, | |
2f90b865 | 61 | [DCB_ATTR_PERM_HWADDR] = {.type = NLA_FLAG}, |
859ee3c4 AD |
62 | [DCB_ATTR_CAP] = {.type = NLA_NESTED}, |
63 | [DCB_ATTR_PFC_STATE] = {.type = NLA_U8}, | |
64 | [DCB_ATTR_BCN] = {.type = NLA_NESTED}, | |
6fa382af | 65 | [DCB_ATTR_APP] = {.type = NLA_NESTED}, |
3e29027a | 66 | [DCB_ATTR_IEEE] = {.type = NLA_NESTED}, |
6241b625 | 67 | [DCB_ATTR_DCBX] = {.type = NLA_U8}, |
ea45fe4e | 68 | [DCB_ATTR_FEATCFG] = {.type = NLA_NESTED}, |
2f90b865 AD |
69 | }; |
70 | ||
71 | /* DCB priority flow control to User Priority nested attributes */ | |
b54452b0 | 72 | static const struct nla_policy dcbnl_pfc_up_nest[DCB_PFC_UP_ATTR_MAX + 1] = { |
2f90b865 AD |
73 | [DCB_PFC_UP_ATTR_0] = {.type = NLA_U8}, |
74 | [DCB_PFC_UP_ATTR_1] = {.type = NLA_U8}, | |
75 | [DCB_PFC_UP_ATTR_2] = {.type = NLA_U8}, | |
76 | [DCB_PFC_UP_ATTR_3] = {.type = NLA_U8}, | |
77 | [DCB_PFC_UP_ATTR_4] = {.type = NLA_U8}, | |
78 | [DCB_PFC_UP_ATTR_5] = {.type = NLA_U8}, | |
79 | [DCB_PFC_UP_ATTR_6] = {.type = NLA_U8}, | |
80 | [DCB_PFC_UP_ATTR_7] = {.type = NLA_U8}, | |
81 | [DCB_PFC_UP_ATTR_ALL] = {.type = NLA_FLAG}, | |
82 | }; | |
83 | ||
84 | /* DCB priority grouping nested attributes */ | |
b54452b0 | 85 | static const struct nla_policy dcbnl_pg_nest[DCB_PG_ATTR_MAX + 1] = { |
2f90b865 AD |
86 | [DCB_PG_ATTR_TC_0] = {.type = NLA_NESTED}, |
87 | [DCB_PG_ATTR_TC_1] = {.type = NLA_NESTED}, | |
88 | [DCB_PG_ATTR_TC_2] = {.type = NLA_NESTED}, | |
89 | [DCB_PG_ATTR_TC_3] = {.type = NLA_NESTED}, | |
90 | [DCB_PG_ATTR_TC_4] = {.type = NLA_NESTED}, | |
91 | [DCB_PG_ATTR_TC_5] = {.type = NLA_NESTED}, | |
92 | [DCB_PG_ATTR_TC_6] = {.type = NLA_NESTED}, | |
93 | [DCB_PG_ATTR_TC_7] = {.type = NLA_NESTED}, | |
94 | [DCB_PG_ATTR_TC_ALL] = {.type = NLA_NESTED}, | |
95 | [DCB_PG_ATTR_BW_ID_0] = {.type = NLA_U8}, | |
96 | [DCB_PG_ATTR_BW_ID_1] = {.type = NLA_U8}, | |
97 | [DCB_PG_ATTR_BW_ID_2] = {.type = NLA_U8}, | |
98 | [DCB_PG_ATTR_BW_ID_3] = {.type = NLA_U8}, | |
99 | [DCB_PG_ATTR_BW_ID_4] = {.type = NLA_U8}, | |
100 | [DCB_PG_ATTR_BW_ID_5] = {.type = NLA_U8}, | |
101 | [DCB_PG_ATTR_BW_ID_6] = {.type = NLA_U8}, | |
102 | [DCB_PG_ATTR_BW_ID_7] = {.type = NLA_U8}, | |
103 | [DCB_PG_ATTR_BW_ID_ALL] = {.type = NLA_FLAG}, | |
104 | }; | |
105 | ||
106 | /* DCB traffic class nested attributes. */ | |
b54452b0 | 107 | static const struct nla_policy dcbnl_tc_param_nest[DCB_TC_ATTR_PARAM_MAX + 1] = { |
2f90b865 AD |
108 | [DCB_TC_ATTR_PARAM_PGID] = {.type = NLA_U8}, |
109 | [DCB_TC_ATTR_PARAM_UP_MAPPING] = {.type = NLA_U8}, | |
110 | [DCB_TC_ATTR_PARAM_STRICT_PRIO] = {.type = NLA_U8}, | |
111 | [DCB_TC_ATTR_PARAM_BW_PCT] = {.type = NLA_U8}, | |
112 | [DCB_TC_ATTR_PARAM_ALL] = {.type = NLA_FLAG}, | |
113 | }; | |
114 | ||
46132188 | 115 | /* DCB capabilities nested attributes. */ |
b54452b0 | 116 | static const struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = { |
46132188 AD |
117 | [DCB_CAP_ATTR_ALL] = {.type = NLA_FLAG}, |
118 | [DCB_CAP_ATTR_PG] = {.type = NLA_U8}, | |
119 | [DCB_CAP_ATTR_PFC] = {.type = NLA_U8}, | |
120 | [DCB_CAP_ATTR_UP2TC] = {.type = NLA_U8}, | |
121 | [DCB_CAP_ATTR_PG_TCS] = {.type = NLA_U8}, | |
122 | [DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8}, | |
123 | [DCB_CAP_ATTR_GSP] = {.type = NLA_U8}, | |
124 | [DCB_CAP_ATTR_BCN] = {.type = NLA_U8}, | |
6241b625 | 125 | [DCB_CAP_ATTR_DCBX] = {.type = NLA_U8}, |
46132188 | 126 | }; |
2f90b865 | 127 | |
33dbabc4 | 128 | /* DCB capabilities nested attributes. */ |
b54452b0 | 129 | static const struct nla_policy dcbnl_numtcs_nest[DCB_NUMTCS_ATTR_MAX + 1] = { |
33dbabc4 AD |
130 | [DCB_NUMTCS_ATTR_ALL] = {.type = NLA_FLAG}, |
131 | [DCB_NUMTCS_ATTR_PG] = {.type = NLA_U8}, | |
132 | [DCB_NUMTCS_ATTR_PFC] = {.type = NLA_U8}, | |
133 | }; | |
134 | ||
859ee3c4 | 135 | /* DCB BCN nested attributes. */ |
b54452b0 | 136 | static const struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = { |
859ee3c4 AD |
137 | [DCB_BCN_ATTR_RP_0] = {.type = NLA_U8}, |
138 | [DCB_BCN_ATTR_RP_1] = {.type = NLA_U8}, | |
139 | [DCB_BCN_ATTR_RP_2] = {.type = NLA_U8}, | |
140 | [DCB_BCN_ATTR_RP_3] = {.type = NLA_U8}, | |
141 | [DCB_BCN_ATTR_RP_4] = {.type = NLA_U8}, | |
142 | [DCB_BCN_ATTR_RP_5] = {.type = NLA_U8}, | |
143 | [DCB_BCN_ATTR_RP_6] = {.type = NLA_U8}, | |
144 | [DCB_BCN_ATTR_RP_7] = {.type = NLA_U8}, | |
145 | [DCB_BCN_ATTR_RP_ALL] = {.type = NLA_FLAG}, | |
f4314e81 DS |
146 | [DCB_BCN_ATTR_BCNA_0] = {.type = NLA_U32}, |
147 | [DCB_BCN_ATTR_BCNA_1] = {.type = NLA_U32}, | |
859ee3c4 AD |
148 | [DCB_BCN_ATTR_ALPHA] = {.type = NLA_U32}, |
149 | [DCB_BCN_ATTR_BETA] = {.type = NLA_U32}, | |
150 | [DCB_BCN_ATTR_GD] = {.type = NLA_U32}, | |
151 | [DCB_BCN_ATTR_GI] = {.type = NLA_U32}, | |
152 | [DCB_BCN_ATTR_TMAX] = {.type = NLA_U32}, | |
153 | [DCB_BCN_ATTR_TD] = {.type = NLA_U32}, | |
154 | [DCB_BCN_ATTR_RMIN] = {.type = NLA_U32}, | |
155 | [DCB_BCN_ATTR_W] = {.type = NLA_U32}, | |
156 | [DCB_BCN_ATTR_RD] = {.type = NLA_U32}, | |
157 | [DCB_BCN_ATTR_RU] = {.type = NLA_U32}, | |
158 | [DCB_BCN_ATTR_WRTT] = {.type = NLA_U32}, | |
159 | [DCB_BCN_ATTR_RI] = {.type = NLA_U32}, | |
160 | [DCB_BCN_ATTR_C] = {.type = NLA_U32}, | |
161 | [DCB_BCN_ATTR_ALL] = {.type = NLA_FLAG}, | |
162 | }; | |
163 | ||
6fa382af | 164 | /* DCB APP nested attributes. */ |
b54452b0 | 165 | static const struct nla_policy dcbnl_app_nest[DCB_APP_ATTR_MAX + 1] = { |
6fa382af YZ |
166 | [DCB_APP_ATTR_IDTYPE] = {.type = NLA_U8}, |
167 | [DCB_APP_ATTR_ID] = {.type = NLA_U16}, | |
168 | [DCB_APP_ATTR_PRIORITY] = {.type = NLA_U8}, | |
169 | }; | |
170 | ||
3e29027a JF |
171 | /* IEEE 802.1Qaz nested attributes. */ |
172 | static const struct nla_policy dcbnl_ieee_policy[DCB_ATTR_IEEE_MAX + 1] = { | |
173 | [DCB_ATTR_IEEE_ETS] = {.len = sizeof(struct ieee_ets)}, | |
174 | [DCB_ATTR_IEEE_PFC] = {.len = sizeof(struct ieee_pfc)}, | |
175 | [DCB_ATTR_IEEE_APP_TABLE] = {.type = NLA_NESTED}, | |
08f10aff | 176 | [DCB_ATTR_IEEE_MAXRATE] = {.len = sizeof(struct ieee_maxrate)}, |
c9368247 SM |
177 | [DCB_ATTR_IEEE_QCN] = {.len = sizeof(struct ieee_qcn)}, |
178 | [DCB_ATTR_IEEE_QCN_STATS] = {.len = sizeof(struct ieee_qcn_stats)}, | |
e549f6f9 | 179 | [DCB_ATTR_DCB_BUFFER] = {.len = sizeof(struct dcbnl_buffer)}, |
3e29027a JF |
180 | }; |
181 | ||
ea45fe4e SR |
182 | /* DCB number of traffic classes nested attributes. */ |
183 | static const struct nla_policy dcbnl_featcfg_nest[DCB_FEATCFG_ATTR_MAX + 1] = { | |
184 | [DCB_FEATCFG_ATTR_ALL] = {.type = NLA_FLAG}, | |
185 | [DCB_FEATCFG_ATTR_PG] = {.type = NLA_U8}, | |
186 | [DCB_FEATCFG_ATTR_PFC] = {.type = NLA_U8}, | |
187 | [DCB_FEATCFG_ATTR_APP] = {.type = NLA_U8}, | |
188 | }; | |
189 | ||
9ab933ab JF |
190 | static LIST_HEAD(dcb_app_list); |
191 | static DEFINE_SPINLOCK(dcb_lock); | |
192 | ||
33a03aad TG |
193 | static struct sk_buff *dcbnl_newmsg(int type, u8 cmd, u32 port, u32 seq, |
194 | u32 flags, struct nlmsghdr **nlhp) | |
195 | { | |
196 | struct sk_buff *skb; | |
197 | struct dcbmsg *dcb; | |
198 | struct nlmsghdr *nlh; | |
199 | ||
200 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
201 | if (!skb) | |
202 | return NULL; | |
203 | ||
204 | nlh = nlmsg_put(skb, port, seq, type, sizeof(*dcb), flags); | |
b3908e22 | 205 | BUG_ON(!nlh); |
33a03aad TG |
206 | |
207 | dcb = nlmsg_data(nlh); | |
208 | dcb->dcb_family = AF_UNSPEC; | |
209 | dcb->cmd = cmd; | |
210 | dcb->dcb_pad = 0; | |
211 | ||
212 | if (nlhp) | |
213 | *nlhp = nlh; | |
214 | ||
215 | return skb; | |
216 | } | |
217 | ||
7be99413 TG |
218 | static int dcbnl_getstate(struct net_device *netdev, struct nlmsghdr *nlh, |
219 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 220 | { |
2f90b865 AD |
221 | /* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */ |
222 | if (!netdev->dcbnl_ops->getstate) | |
3d1f4869 | 223 | return -EOPNOTSUPP; |
2f90b865 | 224 | |
7be99413 TG |
225 | return nla_put_u8(skb, DCB_ATTR_STATE, |
226 | netdev->dcbnl_ops->getstate(netdev)); | |
2f90b865 AD |
227 | } |
228 | ||
7be99413 TG |
229 | static int dcbnl_getpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
230 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 231 | { |
2f90b865 AD |
232 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1], *nest; |
233 | u8 value; | |
3d1f4869 | 234 | int ret; |
2f90b865 AD |
235 | int i; |
236 | int getall = 0; | |
237 | ||
3d1f4869 TG |
238 | if (!tb[DCB_ATTR_PFC_CFG]) |
239 | return -EINVAL; | |
240 | ||
241 | if (!netdev->dcbnl_ops->getpfccfg) | |
242 | return -EOPNOTSUPP; | |
2f90b865 AD |
243 | |
244 | ret = nla_parse_nested(data, DCB_PFC_UP_ATTR_MAX, | |
fceb6435 | 245 | tb[DCB_ATTR_PFC_CFG], dcbnl_pfc_up_nest, NULL); |
2f90b865 | 246 | if (ret) |
3d1f4869 | 247 | return ret; |
2f90b865 | 248 | |
7be99413 | 249 | nest = nla_nest_start(skb, DCB_ATTR_PFC_CFG); |
2f90b865 | 250 | if (!nest) |
3d1f4869 | 251 | return -EMSGSIZE; |
2f90b865 AD |
252 | |
253 | if (data[DCB_PFC_UP_ATTR_ALL]) | |
254 | getall = 1; | |
255 | ||
256 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
257 | if (!getall && !data[i]) | |
258 | continue; | |
259 | ||
260 | netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, | |
261 | &value); | |
7be99413 | 262 | ret = nla_put_u8(skb, i, value); |
2f90b865 | 263 | if (ret) { |
7be99413 | 264 | nla_nest_cancel(skb, nest); |
3d1f4869 | 265 | return ret; |
2f90b865 AD |
266 | } |
267 | } | |
7be99413 | 268 | nla_nest_end(skb, nest); |
2f90b865 AD |
269 | |
270 | return 0; | |
2f90b865 AD |
271 | } |
272 | ||
7be99413 TG |
273 | static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlmsghdr *nlh, |
274 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 275 | { |
2f90b865 | 276 | u8 perm_addr[MAX_ADDR_LEN]; |
2f90b865 AD |
277 | |
278 | if (!netdev->dcbnl_ops->getpermhwaddr) | |
3d1f4869 | 279 | return -EOPNOTSUPP; |
2f90b865 | 280 | |
29cd8ae0 | 281 | memset(perm_addr, 0, sizeof(perm_addr)); |
2f90b865 AD |
282 | netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr); |
283 | ||
7be99413 | 284 | return nla_put(skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr), perm_addr); |
2f90b865 AD |
285 | } |
286 | ||
7be99413 TG |
287 | static int dcbnl_getcap(struct net_device *netdev, struct nlmsghdr *nlh, |
288 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
46132188 | 289 | { |
46132188 AD |
290 | struct nlattr *data[DCB_CAP_ATTR_MAX + 1], *nest; |
291 | u8 value; | |
3d1f4869 | 292 | int ret; |
46132188 AD |
293 | int i; |
294 | int getall = 0; | |
295 | ||
3d1f4869 TG |
296 | if (!tb[DCB_ATTR_CAP]) |
297 | return -EINVAL; | |
298 | ||
299 | if (!netdev->dcbnl_ops->getcap) | |
300 | return -EOPNOTSUPP; | |
46132188 AD |
301 | |
302 | ret = nla_parse_nested(data, DCB_CAP_ATTR_MAX, tb[DCB_ATTR_CAP], | |
fceb6435 | 303 | dcbnl_cap_nest, NULL); |
46132188 | 304 | if (ret) |
3d1f4869 | 305 | return ret; |
46132188 | 306 | |
7be99413 | 307 | nest = nla_nest_start(skb, DCB_ATTR_CAP); |
46132188 | 308 | if (!nest) |
3d1f4869 | 309 | return -EMSGSIZE; |
46132188 AD |
310 | |
311 | if (data[DCB_CAP_ATTR_ALL]) | |
312 | getall = 1; | |
313 | ||
314 | for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) { | |
315 | if (!getall && !data[i]) | |
316 | continue; | |
317 | ||
318 | if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) { | |
7be99413 | 319 | ret = nla_put_u8(skb, i, value); |
46132188 | 320 | if (ret) { |
7be99413 | 321 | nla_nest_cancel(skb, nest); |
3d1f4869 | 322 | return ret; |
46132188 AD |
323 | } |
324 | } | |
325 | } | |
7be99413 | 326 | nla_nest_end(skb, nest); |
46132188 AD |
327 | |
328 | return 0; | |
46132188 AD |
329 | } |
330 | ||
7be99413 TG |
331 | static int dcbnl_getnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
332 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 | 333 | { |
33dbabc4 AD |
334 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1], *nest; |
335 | u8 value; | |
3d1f4869 | 336 | int ret; |
33dbabc4 AD |
337 | int i; |
338 | int getall = 0; | |
339 | ||
3d1f4869 TG |
340 | if (!tb[DCB_ATTR_NUMTCS]) |
341 | return -EINVAL; | |
342 | ||
343 | if (!netdev->dcbnl_ops->getnumtcs) | |
344 | return -EOPNOTSUPP; | |
33dbabc4 AD |
345 | |
346 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
fceb6435 | 347 | dcbnl_numtcs_nest, NULL); |
3d1f4869 TG |
348 | if (ret) |
349 | return ret; | |
33dbabc4 | 350 | |
7be99413 | 351 | nest = nla_nest_start(skb, DCB_ATTR_NUMTCS); |
3d1f4869 TG |
352 | if (!nest) |
353 | return -EMSGSIZE; | |
33dbabc4 AD |
354 | |
355 | if (data[DCB_NUMTCS_ATTR_ALL]) | |
356 | getall = 1; | |
357 | ||
358 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
359 | if (!getall && !data[i]) | |
360 | continue; | |
361 | ||
362 | ret = netdev->dcbnl_ops->getnumtcs(netdev, i, &value); | |
363 | if (!ret) { | |
7be99413 | 364 | ret = nla_put_u8(skb, i, value); |
33dbabc4 | 365 | if (ret) { |
7be99413 | 366 | nla_nest_cancel(skb, nest); |
3d1f4869 | 367 | return ret; |
33dbabc4 | 368 | } |
3d1f4869 TG |
369 | } else |
370 | return -EINVAL; | |
33dbabc4 | 371 | } |
7be99413 | 372 | nla_nest_end(skb, nest); |
33dbabc4 AD |
373 | |
374 | return 0; | |
33dbabc4 AD |
375 | } |
376 | ||
7be99413 TG |
377 | static int dcbnl_setnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
378 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 AD |
379 | { |
380 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1]; | |
3d1f4869 | 381 | int ret; |
33dbabc4 AD |
382 | u8 value; |
383 | int i; | |
384 | ||
3d1f4869 TG |
385 | if (!tb[DCB_ATTR_NUMTCS]) |
386 | return -EINVAL; | |
387 | ||
388 | if (!netdev->dcbnl_ops->setnumtcs) | |
389 | return -EOPNOTSUPP; | |
33dbabc4 AD |
390 | |
391 | ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS], | |
fceb6435 | 392 | dcbnl_numtcs_nest, NULL); |
7be99413 | 393 | if (ret) |
3d1f4869 | 394 | return ret; |
33dbabc4 AD |
395 | |
396 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
397 | if (data[i] == NULL) | |
398 | continue; | |
399 | ||
400 | value = nla_get_u8(data[i]); | |
401 | ||
402 | ret = netdev->dcbnl_ops->setnumtcs(netdev, i, value); | |
33dbabc4 | 403 | if (ret) |
7be99413 | 404 | break; |
33dbabc4 AD |
405 | } |
406 | ||
7be99413 | 407 | return nla_put_u8(skb, DCB_ATTR_NUMTCS, !!ret); |
33dbabc4 AD |
408 | } |
409 | ||
7be99413 TG |
410 | static int dcbnl_getpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
411 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 412 | { |
0eb3aa9b | 413 | if (!netdev->dcbnl_ops->getpfcstate) |
3d1f4869 | 414 | return -EOPNOTSUPP; |
0eb3aa9b | 415 | |
7be99413 TG |
416 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, |
417 | netdev->dcbnl_ops->getpfcstate(netdev)); | |
0eb3aa9b AD |
418 | } |
419 | ||
7be99413 TG |
420 | static int dcbnl_setpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
421 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 422 | { |
0eb3aa9b AD |
423 | u8 value; |
424 | ||
3d1f4869 | 425 | if (!tb[DCB_ATTR_PFC_STATE]) |
7be99413 | 426 | return -EINVAL; |
0eb3aa9b | 427 | |
3d1f4869 TG |
428 | if (!netdev->dcbnl_ops->setpfcstate) |
429 | return -EOPNOTSUPP; | |
430 | ||
0eb3aa9b AD |
431 | value = nla_get_u8(tb[DCB_ATTR_PFC_STATE]); |
432 | ||
433 | netdev->dcbnl_ops->setpfcstate(netdev, value); | |
434 | ||
7be99413 | 435 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, 0); |
0eb3aa9b AD |
436 | } |
437 | ||
7be99413 TG |
438 | static int dcbnl_getapp(struct net_device *netdev, struct nlmsghdr *nlh, |
439 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 440 | { |
57949686 YZ |
441 | struct nlattr *app_nest; |
442 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
443 | u16 id; | |
444 | u8 up, idtype; | |
3d1f4869 | 445 | int ret; |
57949686 | 446 | |
3dce38a0 | 447 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 448 | return -EINVAL; |
57949686 YZ |
449 | |
450 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
fceb6435 | 451 | dcbnl_app_nest, NULL); |
57949686 | 452 | if (ret) |
3d1f4869 | 453 | return ret; |
57949686 | 454 | |
57949686 YZ |
455 | /* all must be non-null */ |
456 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
457 | (!app_tb[DCB_APP_ATTR_ID])) | |
3d1f4869 | 458 | return -EINVAL; |
57949686 YZ |
459 | |
460 | /* either by eth type or by socket number */ | |
461 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
462 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
463 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 464 | return -EINVAL; |
57949686 YZ |
465 | |
466 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
3dce38a0 JF |
467 | |
468 | if (netdev->dcbnl_ops->getapp) { | |
c2659479 AB |
469 | ret = netdev->dcbnl_ops->getapp(netdev, idtype, id); |
470 | if (ret < 0) | |
471 | return ret; | |
472 | else | |
473 | up = ret; | |
3dce38a0 JF |
474 | } else { |
475 | struct dcb_app app = { | |
476 | .selector = idtype, | |
477 | .protocol = id, | |
478 | }; | |
479 | up = dcb_getapp(netdev, &app); | |
480 | } | |
57949686 | 481 | |
7be99413 | 482 | app_nest = nla_nest_start(skb, DCB_ATTR_APP); |
d3337de5 | 483 | if (!app_nest) |
3d1f4869 | 484 | return -EMSGSIZE; |
d3337de5 | 485 | |
7be99413 | 486 | ret = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, idtype); |
57949686 YZ |
487 | if (ret) |
488 | goto out_cancel; | |
489 | ||
7be99413 | 490 | ret = nla_put_u16(skb, DCB_APP_ATTR_ID, id); |
57949686 YZ |
491 | if (ret) |
492 | goto out_cancel; | |
493 | ||
7be99413 | 494 | ret = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, up); |
57949686 YZ |
495 | if (ret) |
496 | goto out_cancel; | |
497 | ||
7be99413 | 498 | nla_nest_end(skb, app_nest); |
57949686 | 499 | |
3d1f4869 | 500 | return 0; |
57949686 YZ |
501 | |
502 | out_cancel: | |
7be99413 | 503 | nla_nest_cancel(skb, app_nest); |
57949686 YZ |
504 | return ret; |
505 | } | |
506 | ||
7be99413 TG |
507 | static int dcbnl_setapp(struct net_device *netdev, struct nlmsghdr *nlh, |
508 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 509 | { |
3d1f4869 | 510 | int ret; |
57949686 YZ |
511 | u16 id; |
512 | u8 up, idtype; | |
513 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
514 | ||
9ab933ab | 515 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 516 | return -EINVAL; |
57949686 YZ |
517 | |
518 | ret = nla_parse_nested(app_tb, DCB_APP_ATTR_MAX, tb[DCB_ATTR_APP], | |
fceb6435 | 519 | dcbnl_app_nest, NULL); |
57949686 | 520 | if (ret) |
3d1f4869 | 521 | return ret; |
57949686 | 522 | |
57949686 YZ |
523 | /* all must be non-null */ |
524 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
525 | (!app_tb[DCB_APP_ATTR_ID]) || | |
526 | (!app_tb[DCB_APP_ATTR_PRIORITY])) | |
3d1f4869 | 527 | return -EINVAL; |
57949686 YZ |
528 | |
529 | /* either by eth type or by socket number */ | |
530 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
531 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
532 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 533 | return -EINVAL; |
57949686 YZ |
534 | |
535 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
536 | up = nla_get_u8(app_tb[DCB_APP_ATTR_PRIORITY]); | |
537 | ||
9ab933ab | 538 | if (netdev->dcbnl_ops->setapp) { |
3d1f4869 | 539 | ret = netdev->dcbnl_ops->setapp(netdev, idtype, id, up); |
c2659479 AB |
540 | if (ret < 0) |
541 | return ret; | |
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 | 575 | |
fceb6435 JB |
576 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, tb[DCB_ATTR_PG_CFG], |
577 | dcbnl_pg_nest, NULL); | |
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]; | |
fceb6435 JB |
596 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, data, |
597 | dcbnl_tc_param_nest, NULL); | |
2f90b865 AD |
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, | |
fceb6435 | 734 | tb[DCB_ATTR_PFC_CFG], dcbnl_pfc_up_nest, NULL); |
2f90b865 | 735 | if (ret) |
3d1f4869 | 736 | return ret; |
2f90b865 AD |
737 | |
738 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
739 | if (data[i] == NULL) | |
740 | continue; | |
741 | value = nla_get_u8(data[i]); | |
742 | netdev->dcbnl_ops->setpfccfg(netdev, | |
743 | data[i]->nla_type - DCB_PFC_UP_ATTR_0, value); | |
744 | } | |
745 | ||
7be99413 | 746 | return nla_put_u8(skb, DCB_ATTR_PFC_CFG, 0); |
2f90b865 AD |
747 | } |
748 | ||
7be99413 TG |
749 | static int dcbnl_setall(struct net_device *netdev, struct nlmsghdr *nlh, |
750 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 751 | { |
3d1f4869 | 752 | int ret; |
2f90b865 | 753 | |
3d1f4869 TG |
754 | if (!tb[DCB_ATTR_SET_ALL]) |
755 | return -EINVAL; | |
756 | ||
757 | if (!netdev->dcbnl_ops->setall) | |
758 | return -EOPNOTSUPP; | |
2f90b865 | 759 | |
7be99413 TG |
760 | ret = nla_put_u8(skb, DCB_ATTR_SET_ALL, |
761 | netdev->dcbnl_ops->setall(netdev)); | |
08157984 | 762 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SET_ALL, seq, 0); |
2f90b865 AD |
763 | |
764 | return ret; | |
765 | } | |
766 | ||
7be99413 TG |
767 | static int __dcbnl_pg_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
768 | u32 seq, struct nlattr **tb, struct sk_buff *skb, | |
769 | int dir) | |
2f90b865 AD |
770 | { |
771 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
772 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
3d1f4869 | 773 | int ret; |
2f90b865 AD |
774 | int i; |
775 | u8 pgid; | |
776 | u8 up_map; | |
777 | u8 prio; | |
778 | u8 tc_pct; | |
779 | ||
3d1f4869 TG |
780 | if (!tb[DCB_ATTR_PG_CFG]) |
781 | return -EINVAL; | |
782 | ||
783 | if (!netdev->dcbnl_ops->setpgtccfgtx || | |
2f90b865 AD |
784 | !netdev->dcbnl_ops->setpgtccfgrx || |
785 | !netdev->dcbnl_ops->setpgbwgcfgtx || | |
786 | !netdev->dcbnl_ops->setpgbwgcfgrx) | |
3d1f4869 | 787 | return -EOPNOTSUPP; |
2f90b865 | 788 | |
fceb6435 JB |
789 | ret = nla_parse_nested(pg_tb, DCB_PG_ATTR_MAX, tb[DCB_ATTR_PG_CFG], |
790 | dcbnl_pg_nest, NULL); | |
2f90b865 | 791 | if (ret) |
3d1f4869 | 792 | return ret; |
2f90b865 AD |
793 | |
794 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
795 | if (!pg_tb[i]) | |
796 | continue; | |
797 | ||
798 | ret = nla_parse_nested(param_tb, DCB_TC_ATTR_PARAM_MAX, | |
fceb6435 | 799 | pg_tb[i], dcbnl_tc_param_nest, NULL); |
2f90b865 | 800 | if (ret) |
3d1f4869 | 801 | return ret; |
2f90b865 AD |
802 | |
803 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
804 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
805 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
806 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
807 | ||
808 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]) | |
809 | prio = | |
810 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO]); | |
811 | ||
812 | if (param_tb[DCB_TC_ATTR_PARAM_PGID]) | |
813 | pgid = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_PGID]); | |
814 | ||
815 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT]) | |
816 | tc_pct = nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_BW_PCT]); | |
817 | ||
818 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]) | |
819 | up_map = | |
820 | nla_get_u8(param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING]); | |
821 | ||
822 | /* dir: Tx = 0, Rx = 1 */ | |
823 | if (dir) { | |
824 | /* Rx */ | |
825 | netdev->dcbnl_ops->setpgtccfgrx(netdev, | |
826 | i - DCB_PG_ATTR_TC_0, | |
827 | prio, pgid, tc_pct, up_map); | |
828 | } else { | |
829 | /* Tx */ | |
830 | netdev->dcbnl_ops->setpgtccfgtx(netdev, | |
831 | i - DCB_PG_ATTR_TC_0, | |
832 | prio, pgid, tc_pct, up_map); | |
833 | } | |
834 | } | |
835 | ||
836 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
837 | if (!pg_tb[i]) | |
838 | continue; | |
839 | ||
840 | tc_pct = nla_get_u8(pg_tb[i]); | |
841 | ||
842 | /* dir: Tx = 0, Rx = 1 */ | |
843 | if (dir) { | |
844 | /* Rx */ | |
845 | netdev->dcbnl_ops->setpgbwgcfgrx(netdev, | |
846 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
847 | } else { | |
848 | /* Tx */ | |
849 | netdev->dcbnl_ops->setpgbwgcfgtx(netdev, | |
850 | i - DCB_PG_ATTR_BW_ID_0, tc_pct); | |
851 | } | |
852 | } | |
853 | ||
bb1dfefd | 854 | return nla_put_u8(skb, DCB_ATTR_PG_CFG, 0); |
2f90b865 AD |
855 | } |
856 | ||
7be99413 TG |
857 | static int dcbnl_pgtx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
858 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 859 | { |
7be99413 | 860 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 0); |
2f90b865 AD |
861 | } |
862 | ||
7be99413 TG |
863 | static int dcbnl_pgrx_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
864 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 865 | { |
7be99413 | 866 | return __dcbnl_pg_setcfg(netdev, nlh, seq, tb, skb, 1); |
2f90b865 AD |
867 | } |
868 | ||
7be99413 TG |
869 | static int dcbnl_bcn_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
870 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 | 871 | { |
859ee3c4 AD |
872 | struct nlattr *bcn_nest; |
873 | struct nlattr *bcn_tb[DCB_BCN_ATTR_MAX + 1]; | |
874 | u8 value_byte; | |
875 | u32 value_integer; | |
3d1f4869 | 876 | int ret; |
859ee3c4 AD |
877 | bool getall = false; |
878 | int i; | |
879 | ||
3d1f4869 TG |
880 | if (!tb[DCB_ATTR_BCN]) |
881 | return -EINVAL; | |
882 | ||
883 | if (!netdev->dcbnl_ops->getbcnrp || | |
859ee3c4 | 884 | !netdev->dcbnl_ops->getbcncfg) |
3d1f4869 | 885 | return -EOPNOTSUPP; |
859ee3c4 | 886 | |
fceb6435 JB |
887 | ret = nla_parse_nested(bcn_tb, DCB_BCN_ATTR_MAX, tb[DCB_ATTR_BCN], |
888 | dcbnl_bcn_nest, NULL); | |
859ee3c4 | 889 | if (ret) |
3d1f4869 | 890 | return ret; |
859ee3c4 | 891 | |
7be99413 | 892 | bcn_nest = nla_nest_start(skb, DCB_ATTR_BCN); |
859ee3c4 | 893 | if (!bcn_nest) |
3d1f4869 | 894 | return -EMSGSIZE; |
859ee3c4 AD |
895 | |
896 | if (bcn_tb[DCB_BCN_ATTR_ALL]) | |
897 | getall = true; | |
898 | ||
899 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
900 | if (!getall && !bcn_tb[i]) | |
901 | continue; | |
902 | ||
903 | netdev->dcbnl_ops->getbcnrp(netdev, i - DCB_BCN_ATTR_RP_0, | |
904 | &value_byte); | |
7be99413 | 905 | ret = nla_put_u8(skb, i, value_byte); |
859ee3c4 AD |
906 | if (ret) |
907 | goto err_bcn; | |
908 | } | |
909 | ||
f4314e81 | 910 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
911 | if (!getall && !bcn_tb[i]) |
912 | continue; | |
913 | ||
914 | netdev->dcbnl_ops->getbcncfg(netdev, i, | |
915 | &value_integer); | |
7be99413 | 916 | ret = nla_put_u32(skb, i, value_integer); |
859ee3c4 AD |
917 | if (ret) |
918 | goto err_bcn; | |
919 | } | |
920 | ||
7be99413 | 921 | nla_nest_end(skb, bcn_nest); |
859ee3c4 AD |
922 | |
923 | return 0; | |
924 | ||
925 | err_bcn: | |
7be99413 | 926 | nla_nest_cancel(skb, bcn_nest); |
859ee3c4 AD |
927 | return ret; |
928 | } | |
929 | ||
7be99413 TG |
930 | static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
931 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 AD |
932 | { |
933 | struct nlattr *data[DCB_BCN_ATTR_MAX + 1]; | |
934 | int i; | |
3d1f4869 | 935 | int ret; |
859ee3c4 AD |
936 | u8 value_byte; |
937 | u32 value_int; | |
938 | ||
3d1f4869 TG |
939 | if (!tb[DCB_ATTR_BCN]) |
940 | return -EINVAL; | |
941 | ||
942 | if (!netdev->dcbnl_ops->setbcncfg || | |
f64f9e71 | 943 | !netdev->dcbnl_ops->setbcnrp) |
3d1f4869 | 944 | return -EOPNOTSUPP; |
859ee3c4 | 945 | |
fceb6435 JB |
946 | ret = nla_parse_nested(data, DCB_BCN_ATTR_MAX, tb[DCB_ATTR_BCN], |
947 | dcbnl_pfc_up_nest, NULL); | |
859ee3c4 | 948 | if (ret) |
3d1f4869 | 949 | return ret; |
859ee3c4 AD |
950 | |
951 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
952 | if (data[i] == NULL) | |
953 | continue; | |
954 | value_byte = nla_get_u8(data[i]); | |
955 | netdev->dcbnl_ops->setbcnrp(netdev, | |
956 | data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte); | |
957 | } | |
958 | ||
f4314e81 | 959 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
960 | if (data[i] == NULL) |
961 | continue; | |
962 | value_int = nla_get_u32(data[i]); | |
963 | netdev->dcbnl_ops->setbcncfg(netdev, | |
964 | i, value_int); | |
965 | } | |
966 | ||
3d1f4869 | 967 | return nla_put_u8(skb, DCB_ATTR_BCN, 0); |
859ee3c4 AD |
968 | } |
969 | ||
dc6ed1df SR |
970 | static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb, |
971 | int app_nested_type, int app_info_type, | |
972 | int app_entry_type) | |
eed84713 SR |
973 | { |
974 | struct dcb_peer_app_info info; | |
975 | struct dcb_app *table = NULL; | |
976 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
977 | u16 app_count; | |
978 | int err; | |
979 | ||
980 | ||
981 | /** | |
982 | * retrieve the peer app configuration form the driver. If the driver | |
983 | * handlers fail exit without doing anything | |
984 | */ | |
985 | err = ops->peer_getappinfo(netdev, &info, &app_count); | |
986 | if (!err && app_count) { | |
6da2ec56 KC |
987 | table = kmalloc_array(app_count, sizeof(struct dcb_app), |
988 | GFP_KERNEL); | |
eed84713 SR |
989 | if (!table) |
990 | return -ENOMEM; | |
991 | ||
992 | err = ops->peer_getapptable(netdev, table); | |
993 | } | |
994 | ||
995 | if (!err) { | |
996 | u16 i; | |
997 | struct nlattr *app; | |
998 | ||
999 | /** | |
1000 | * build the message, from here on the only possible failure | |
1001 | * is due to the skb size | |
1002 | */ | |
1003 | err = -EMSGSIZE; | |
1004 | ||
dc6ed1df | 1005 | app = nla_nest_start(skb, app_nested_type); |
eed84713 SR |
1006 | if (!app) |
1007 | goto nla_put_failure; | |
1008 | ||
1eb4c977 DM |
1009 | if (app_info_type && |
1010 | nla_put(skb, app_info_type, sizeof(info), &info)) | |
1011 | goto nla_put_failure; | |
eed84713 | 1012 | |
1eb4c977 DM |
1013 | for (i = 0; i < app_count; i++) { |
1014 | if (nla_put(skb, app_entry_type, sizeof(struct dcb_app), | |
1015 | &table[i])) | |
1016 | goto nla_put_failure; | |
1017 | } | |
eed84713 SR |
1018 | nla_nest_end(skb, app); |
1019 | } | |
1020 | err = 0; | |
1021 | ||
1022 | nla_put_failure: | |
1023 | kfree(table); | |
1024 | return err; | |
1025 | } | |
3e29027a | 1026 | |
c9368247 | 1027 | /* Handle IEEE 802.1Qaz/802.1Qau/802.1Qbb GET commands. */ |
314b4778 | 1028 | static int dcbnl_ieee_fill(struct sk_buff *skb, struct net_device *netdev) |
3e29027a | 1029 | { |
9ab933ab JF |
1030 | struct nlattr *ieee, *app; |
1031 | struct dcb_app_type *itr; | |
3e29027a | 1032 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
c7797baf | 1033 | int dcbx; |
3d1f4869 | 1034 | int err; |
3e29027a | 1035 | |
1eb4c977 | 1036 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
3d1f4869 TG |
1037 | return -EMSGSIZE; |
1038 | ||
3e29027a JF |
1039 | ieee = nla_nest_start(skb, DCB_ATTR_IEEE); |
1040 | if (!ieee) | |
3d1f4869 | 1041 | return -EMSGSIZE; |
3e29027a JF |
1042 | |
1043 | if (ops->ieee_getets) { | |
1044 | struct ieee_ets ets; | |
29cd8ae0 | 1045 | memset(&ets, 0, sizeof(ets)); |
3e29027a | 1046 | err = ops->ieee_getets(netdev, &ets); |
1eb4c977 DM |
1047 | if (!err && |
1048 | nla_put(skb, DCB_ATTR_IEEE_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1049 | return -EMSGSIZE; |
3e29027a JF |
1050 | } |
1051 | ||
08f10aff AV |
1052 | if (ops->ieee_getmaxrate) { |
1053 | struct ieee_maxrate maxrate; | |
29cd8ae0 | 1054 | memset(&maxrate, 0, sizeof(maxrate)); |
08f10aff AV |
1055 | err = ops->ieee_getmaxrate(netdev, &maxrate); |
1056 | if (!err) { | |
1057 | err = nla_put(skb, DCB_ATTR_IEEE_MAXRATE, | |
1058 | sizeof(maxrate), &maxrate); | |
1059 | if (err) | |
3d1f4869 | 1060 | return -EMSGSIZE; |
08f10aff AV |
1061 | } |
1062 | } | |
1063 | ||
c9368247 SM |
1064 | if (ops->ieee_getqcn) { |
1065 | struct ieee_qcn qcn; | |
1066 | ||
1067 | memset(&qcn, 0, sizeof(qcn)); | |
1068 | err = ops->ieee_getqcn(netdev, &qcn); | |
1069 | if (!err) { | |
1070 | err = nla_put(skb, DCB_ATTR_IEEE_QCN, | |
1071 | sizeof(qcn), &qcn); | |
1072 | if (err) | |
1073 | return -EMSGSIZE; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | if (ops->ieee_getqcnstats) { | |
1078 | struct ieee_qcn_stats qcn_stats; | |
1079 | ||
1080 | memset(&qcn_stats, 0, sizeof(qcn_stats)); | |
1081 | err = ops->ieee_getqcnstats(netdev, &qcn_stats); | |
1082 | if (!err) { | |
1083 | err = nla_put(skb, DCB_ATTR_IEEE_QCN_STATS, | |
1084 | sizeof(qcn_stats), &qcn_stats); | |
1085 | if (err) | |
1086 | return -EMSGSIZE; | |
1087 | } | |
1088 | } | |
1089 | ||
3e29027a JF |
1090 | if (ops->ieee_getpfc) { |
1091 | struct ieee_pfc pfc; | |
29cd8ae0 | 1092 | memset(&pfc, 0, sizeof(pfc)); |
3e29027a | 1093 | err = ops->ieee_getpfc(netdev, &pfc); |
1eb4c977 DM |
1094 | if (!err && |
1095 | nla_put(skb, DCB_ATTR_IEEE_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1096 | return -EMSGSIZE; |
3e29027a JF |
1097 | } |
1098 | ||
e549f6f9 HN |
1099 | if (ops->dcbnl_getbuffer) { |
1100 | struct dcbnl_buffer buffer; | |
1101 | ||
1102 | memset(&buffer, 0, sizeof(buffer)); | |
1103 | err = ops->dcbnl_getbuffer(netdev, &buffer); | |
1104 | if (!err && | |
1105 | nla_put(skb, DCB_ATTR_DCB_BUFFER, sizeof(buffer), &buffer)) | |
1106 | return -EMSGSIZE; | |
1107 | } | |
1108 | ||
9ab933ab JF |
1109 | app = nla_nest_start(skb, DCB_ATTR_IEEE_APP_TABLE); |
1110 | if (!app) | |
3d1f4869 | 1111 | return -EMSGSIZE; |
9ab933ab | 1112 | |
52cff74e | 1113 | spin_lock_bh(&dcb_lock); |
9ab933ab | 1114 | list_for_each_entry(itr, &dcb_app_list, list) { |
e290ed81 | 1115 | if (itr->ifindex == netdev->ifindex) { |
70bfa2d2 DC |
1116 | err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app), |
1117 | &itr->app); | |
1118 | if (err) { | |
52cff74e | 1119 | spin_unlock_bh(&dcb_lock); |
3d1f4869 | 1120 | return -EMSGSIZE; |
70bfa2d2 DC |
1121 | } |
1122 | } | |
9ab933ab | 1123 | } |
c7797baf JF |
1124 | |
1125 | if (netdev->dcbnl_ops->getdcbx) | |
1126 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1127 | else | |
1128 | dcbx = -EOPNOTSUPP; | |
1129 | ||
52cff74e | 1130 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1131 | nla_nest_end(skb, app); |
1132 | ||
eed84713 SR |
1133 | /* get peer info if available */ |
1134 | if (ops->ieee_peer_getets) { | |
1135 | struct ieee_ets ets; | |
29cd8ae0 | 1136 | memset(&ets, 0, sizeof(ets)); |
eed84713 | 1137 | err = ops->ieee_peer_getets(netdev, &ets); |
1eb4c977 DM |
1138 | if (!err && |
1139 | nla_put(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1140 | return -EMSGSIZE; |
eed84713 SR |
1141 | } |
1142 | ||
1143 | if (ops->ieee_peer_getpfc) { | |
1144 | struct ieee_pfc pfc; | |
29cd8ae0 | 1145 | memset(&pfc, 0, sizeof(pfc)); |
eed84713 | 1146 | err = ops->ieee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1147 | if (!err && |
1148 | nla_put(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1149 | return -EMSGSIZE; |
eed84713 SR |
1150 | } |
1151 | ||
1152 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
dc6ed1df SR |
1153 | err = dcbnl_build_peer_app(netdev, skb, |
1154 | DCB_ATTR_IEEE_PEER_APP, | |
1155 | DCB_ATTR_IEEE_APP_UNSPEC, | |
1156 | DCB_ATTR_IEEE_APP); | |
eed84713 | 1157 | if (err) |
3d1f4869 | 1158 | return -EMSGSIZE; |
eed84713 SR |
1159 | } |
1160 | ||
3e29027a | 1161 | nla_nest_end(skb, ieee); |
c7797baf JF |
1162 | if (dcbx >= 0) { |
1163 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1164 | if (err) | |
3d1f4869 | 1165 | return -EMSGSIZE; |
c7797baf | 1166 | } |
3e29027a | 1167 | |
314b4778 | 1168 | return 0; |
3e29027a JF |
1169 | } |
1170 | ||
5b7f7626 SR |
1171 | static int dcbnl_cee_pg_fill(struct sk_buff *skb, struct net_device *dev, |
1172 | int dir) | |
1173 | { | |
1174 | u8 pgid, up_map, prio, tc_pct; | |
1175 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; | |
1176 | int i = dir ? DCB_ATTR_CEE_TX_PG : DCB_ATTR_CEE_RX_PG; | |
1177 | struct nlattr *pg = nla_nest_start(skb, i); | |
1178 | ||
1179 | if (!pg) | |
3d1f4869 | 1180 | return -EMSGSIZE; |
5b7f7626 SR |
1181 | |
1182 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
1183 | struct nlattr *tc_nest = nla_nest_start(skb, i); | |
1184 | ||
1185 | if (!tc_nest) | |
3d1f4869 | 1186 | return -EMSGSIZE; |
5b7f7626 SR |
1187 | |
1188 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
1189 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
1190 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1191 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
1192 | ||
1193 | if (!dir) | |
1194 | ops->getpgtccfgrx(dev, i - DCB_PG_ATTR_TC_0, | |
1195 | &prio, &pgid, &tc_pct, &up_map); | |
1196 | else | |
1197 | ops->getpgtccfgtx(dev, i - DCB_PG_ATTR_TC_0, | |
1198 | &prio, &pgid, &tc_pct, &up_map); | |
1199 | ||
1eb4c977 DM |
1200 | if (nla_put_u8(skb, DCB_TC_ATTR_PARAM_PGID, pgid) || |
1201 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_UP_MAPPING, up_map) || | |
1202 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_STRICT_PRIO, prio) || | |
1203 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, tc_pct)) | |
3d1f4869 | 1204 | return -EMSGSIZE; |
5b7f7626 SR |
1205 | nla_nest_end(skb, tc_nest); |
1206 | } | |
1207 | ||
1208 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
1209 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1210 | ||
1211 | if (!dir) | |
1212 | ops->getpgbwgcfgrx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1213 | &tc_pct); | |
1214 | else | |
1215 | ops->getpgbwgcfgtx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1216 | &tc_pct); | |
1eb4c977 | 1217 | if (nla_put_u8(skb, i, tc_pct)) |
3d1f4869 | 1218 | return -EMSGSIZE; |
5b7f7626 SR |
1219 | } |
1220 | nla_nest_end(skb, pg); | |
1221 | return 0; | |
5b7f7626 SR |
1222 | } |
1223 | ||
1224 | static int dcbnl_cee_fill(struct sk_buff *skb, struct net_device *netdev) | |
1225 | { | |
1226 | struct nlattr *cee, *app; | |
1227 | struct dcb_app_type *itr; | |
1228 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1229 | int dcbx, i, err = -EMSGSIZE; | |
1230 | u8 value; | |
1231 | ||
1eb4c977 DM |
1232 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
1233 | goto nla_put_failure; | |
5b7f7626 SR |
1234 | cee = nla_nest_start(skb, DCB_ATTR_CEE); |
1235 | if (!cee) | |
1236 | goto nla_put_failure; | |
1237 | ||
1238 | /* local pg */ | |
1239 | if (ops->getpgtccfgtx && ops->getpgbwgcfgtx) { | |
1240 | err = dcbnl_cee_pg_fill(skb, netdev, 1); | |
1241 | if (err) | |
1242 | goto nla_put_failure; | |
1243 | } | |
1244 | ||
1245 | if (ops->getpgtccfgrx && ops->getpgbwgcfgrx) { | |
1246 | err = dcbnl_cee_pg_fill(skb, netdev, 0); | |
1247 | if (err) | |
1248 | goto nla_put_failure; | |
1249 | } | |
1250 | ||
1251 | /* local pfc */ | |
1252 | if (ops->getpfccfg) { | |
1253 | struct nlattr *pfc_nest = nla_nest_start(skb, DCB_ATTR_CEE_PFC); | |
1254 | ||
1255 | if (!pfc_nest) | |
1256 | goto nla_put_failure; | |
1257 | ||
1258 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
1259 | ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, &value); | |
1eb4c977 DM |
1260 | if (nla_put_u8(skb, i, value)) |
1261 | goto nla_put_failure; | |
5b7f7626 SR |
1262 | } |
1263 | nla_nest_end(skb, pfc_nest); | |
1264 | } | |
1265 | ||
1266 | /* local app */ | |
52cff74e | 1267 | spin_lock_bh(&dcb_lock); |
5b7f7626 SR |
1268 | app = nla_nest_start(skb, DCB_ATTR_CEE_APP_TABLE); |
1269 | if (!app) | |
40f5d72a | 1270 | goto dcb_unlock; |
5b7f7626 SR |
1271 | |
1272 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1273 | if (itr->ifindex == netdev->ifindex) { |
5b7f7626 SR |
1274 | struct nlattr *app_nest = nla_nest_start(skb, |
1275 | DCB_ATTR_APP); | |
1276 | if (!app_nest) | |
1277 | goto dcb_unlock; | |
1278 | ||
1279 | err = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, | |
1280 | itr->app.selector); | |
1281 | if (err) | |
1282 | goto dcb_unlock; | |
1283 | ||
1284 | err = nla_put_u16(skb, DCB_APP_ATTR_ID, | |
1285 | itr->app.protocol); | |
1286 | if (err) | |
1287 | goto dcb_unlock; | |
1288 | ||
1289 | err = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, | |
1290 | itr->app.priority); | |
1291 | if (err) | |
1292 | goto dcb_unlock; | |
1293 | ||
1294 | nla_nest_end(skb, app_nest); | |
1295 | } | |
1296 | } | |
1297 | nla_nest_end(skb, app); | |
1298 | ||
1299 | if (netdev->dcbnl_ops->getdcbx) | |
1300 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1301 | else | |
1302 | dcbx = -EOPNOTSUPP; | |
1303 | ||
52cff74e | 1304 | spin_unlock_bh(&dcb_lock); |
5b7f7626 SR |
1305 | |
1306 | /* features flags */ | |
1307 | if (ops->getfeatcfg) { | |
1308 | struct nlattr *feat = nla_nest_start(skb, DCB_ATTR_CEE_FEAT); | |
1309 | if (!feat) | |
1310 | goto nla_put_failure; | |
1311 | ||
1312 | for (i = DCB_FEATCFG_ATTR_ALL + 1; i <= DCB_FEATCFG_ATTR_MAX; | |
1313 | i++) | |
1eb4c977 DM |
1314 | if (!ops->getfeatcfg(netdev, i, &value) && |
1315 | nla_put_u8(skb, i, value)) | |
1316 | goto nla_put_failure; | |
5b7f7626 SR |
1317 | |
1318 | nla_nest_end(skb, feat); | |
1319 | } | |
1320 | ||
1321 | /* peer info if available */ | |
1322 | if (ops->cee_peer_getpg) { | |
1323 | struct cee_pg pg; | |
29cd8ae0 | 1324 | memset(&pg, 0, sizeof(pg)); |
5b7f7626 | 1325 | err = ops->cee_peer_getpg(netdev, &pg); |
1eb4c977 DM |
1326 | if (!err && |
1327 | nla_put(skb, DCB_ATTR_CEE_PEER_PG, sizeof(pg), &pg)) | |
1328 | goto nla_put_failure; | |
5b7f7626 SR |
1329 | } |
1330 | ||
1331 | if (ops->cee_peer_getpfc) { | |
1332 | struct cee_pfc pfc; | |
29cd8ae0 | 1333 | memset(&pfc, 0, sizeof(pfc)); |
5b7f7626 | 1334 | err = ops->cee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1335 | if (!err && |
1336 | nla_put(skb, DCB_ATTR_CEE_PEER_PFC, sizeof(pfc), &pfc)) | |
1337 | goto nla_put_failure; | |
5b7f7626 SR |
1338 | } |
1339 | ||
1340 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
1341 | err = dcbnl_build_peer_app(netdev, skb, | |
1342 | DCB_ATTR_CEE_PEER_APP_TABLE, | |
1343 | DCB_ATTR_CEE_PEER_APP_INFO, | |
1344 | DCB_ATTR_CEE_PEER_APP); | |
1345 | if (err) | |
1346 | goto nla_put_failure; | |
1347 | } | |
1348 | nla_nest_end(skb, cee); | |
1349 | ||
1350 | /* DCBX state */ | |
1351 | if (dcbx >= 0) { | |
1352 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1353 | if (err) | |
1354 | goto nla_put_failure; | |
1355 | } | |
1356 | return 0; | |
1357 | ||
1358 | dcb_unlock: | |
52cff74e | 1359 | spin_unlock_bh(&dcb_lock); |
5b7f7626 | 1360 | nla_put_failure: |
c66ebf2d | 1361 | err = -EMSGSIZE; |
5b7f7626 SR |
1362 | return err; |
1363 | } | |
1364 | ||
1365 | static int dcbnl_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1366 | u32 seq, u32 portid, int dcbx_ver) |
314b4778 JF |
1367 | { |
1368 | struct net *net = dev_net(dev); | |
1369 | struct sk_buff *skb; | |
1370 | struct nlmsghdr *nlh; | |
314b4778 JF |
1371 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; |
1372 | int err; | |
1373 | ||
1374 | if (!ops) | |
1375 | return -EOPNOTSUPP; | |
1376 | ||
15e47304 | 1377 | skb = dcbnl_newmsg(event, cmd, portid, seq, 0, &nlh); |
314b4778 JF |
1378 | if (!skb) |
1379 | return -ENOBUFS; | |
1380 | ||
5b7f7626 SR |
1381 | if (dcbx_ver == DCB_CAP_DCBX_VER_IEEE) |
1382 | err = dcbnl_ieee_fill(skb, dev); | |
1383 | else | |
1384 | err = dcbnl_cee_fill(skb, dev); | |
1385 | ||
314b4778 JF |
1386 | if (err < 0) { |
1387 | /* Report error to broadcast listeners */ | |
ab6d4707 | 1388 | nlmsg_free(skb); |
314b4778 JF |
1389 | rtnl_set_sk_err(net, RTNLGRP_DCB, err); |
1390 | } else { | |
1391 | /* End nlmsg and notify broadcast listeners */ | |
1392 | nlmsg_end(skb, nlh); | |
1393 | rtnl_notify(skb, net, 0, RTNLGRP_DCB, NULL, GFP_KERNEL); | |
1394 | } | |
1395 | ||
1396 | return err; | |
1397 | } | |
5b7f7626 SR |
1398 | |
1399 | int dcbnl_ieee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1400 | u32 seq, u32 portid) |
5b7f7626 | 1401 | { |
15e47304 | 1402 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_IEEE); |
5b7f7626 SR |
1403 | } |
1404 | EXPORT_SYMBOL(dcbnl_ieee_notify); | |
1405 | ||
1406 | int dcbnl_cee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1407 | u32 seq, u32 portid) |
5b7f7626 | 1408 | { |
15e47304 | 1409 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_CEE); |
5b7f7626 SR |
1410 | } |
1411 | EXPORT_SYMBOL(dcbnl_cee_notify); | |
314b4778 | 1412 | |
c9368247 SM |
1413 | /* Handle IEEE 802.1Qaz/802.1Qau/802.1Qbb SET commands. |
1414 | * If any requested operation can not be completed | |
1415 | * the entire msg is aborted and error value is returned. | |
314b4778 JF |
1416 | * No attempt is made to reconcile the case where only part of the |
1417 | * cmd can be completed. | |
1418 | */ | |
7be99413 TG |
1419 | static int dcbnl_ieee_set(struct net_device *netdev, struct nlmsghdr *nlh, |
1420 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 JF |
1421 | { |
1422 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1423 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1424 | int err; |
314b4778 JF |
1425 | |
1426 | if (!ops) | |
3d1f4869 | 1427 | return -EOPNOTSUPP; |
314b4778 | 1428 | |
4003b658 JF |
1429 | if (!tb[DCB_ATTR_IEEE]) |
1430 | return -EINVAL; | |
1431 | ||
fceb6435 JB |
1432 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, tb[DCB_ATTR_IEEE], |
1433 | dcbnl_ieee_policy, NULL); | |
314b4778 JF |
1434 | if (err) |
1435 | return err; | |
1436 | ||
1437 | if (ieee[DCB_ATTR_IEEE_ETS] && ops->ieee_setets) { | |
1438 | struct ieee_ets *ets = nla_data(ieee[DCB_ATTR_IEEE_ETS]); | |
1439 | err = ops->ieee_setets(netdev, ets); | |
1440 | if (err) | |
1441 | goto err; | |
1442 | } | |
1443 | ||
08f10aff AV |
1444 | if (ieee[DCB_ATTR_IEEE_MAXRATE] && ops->ieee_setmaxrate) { |
1445 | struct ieee_maxrate *maxrate = | |
1446 | nla_data(ieee[DCB_ATTR_IEEE_MAXRATE]); | |
1447 | err = ops->ieee_setmaxrate(netdev, maxrate); | |
1448 | if (err) | |
1449 | goto err; | |
1450 | } | |
1451 | ||
c9368247 SM |
1452 | if (ieee[DCB_ATTR_IEEE_QCN] && ops->ieee_setqcn) { |
1453 | struct ieee_qcn *qcn = | |
1454 | nla_data(ieee[DCB_ATTR_IEEE_QCN]); | |
1455 | ||
1456 | err = ops->ieee_setqcn(netdev, qcn); | |
1457 | if (err) | |
1458 | goto err; | |
1459 | } | |
1460 | ||
314b4778 JF |
1461 | if (ieee[DCB_ATTR_IEEE_PFC] && ops->ieee_setpfc) { |
1462 | struct ieee_pfc *pfc = nla_data(ieee[DCB_ATTR_IEEE_PFC]); | |
1463 | err = ops->ieee_setpfc(netdev, pfc); | |
1464 | if (err) | |
1465 | goto err; | |
1466 | } | |
1467 | ||
e549f6f9 HN |
1468 | if (ieee[DCB_ATTR_DCB_BUFFER] && ops->dcbnl_setbuffer) { |
1469 | struct dcbnl_buffer *buffer = | |
1470 | nla_data(ieee[DCB_ATTR_DCB_BUFFER]); | |
1471 | ||
1472 | err = ops->dcbnl_setbuffer(netdev, buffer); | |
1473 | if (err) | |
1474 | goto err; | |
1475 | } | |
1476 | ||
314b4778 JF |
1477 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { |
1478 | struct nlattr *attr; | |
1479 | int rem; | |
1480 | ||
1481 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1482 | struct dcb_app *app_data; | |
332b4fc8 | 1483 | |
314b4778 JF |
1484 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) |
1485 | continue; | |
332b4fc8 | 1486 | |
1487 | if (nla_len(attr) < sizeof(struct dcb_app)) { | |
1488 | err = -ERANGE; | |
1489 | goto err; | |
1490 | } | |
1491 | ||
314b4778 JF |
1492 | app_data = nla_data(attr); |
1493 | if (ops->ieee_setapp) | |
1494 | err = ops->ieee_setapp(netdev, app_data); | |
1495 | else | |
b6db2174 | 1496 | err = dcb_ieee_setapp(netdev, app_data); |
314b4778 JF |
1497 | if (err) |
1498 | goto err; | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | err: | |
7be99413 | 1503 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1504 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_SET, seq, 0); |
314b4778 JF |
1505 | return err; |
1506 | } | |
1507 | ||
7be99413 TG |
1508 | static int dcbnl_ieee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1509 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 | 1510 | { |
314b4778 | 1511 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
314b4778 JF |
1512 | |
1513 | if (!ops) | |
1514 | return -EOPNOTSUPP; | |
1515 | ||
7be99413 | 1516 | return dcbnl_ieee_fill(skb, netdev); |
314b4778 | 1517 | } |
f9ae7e4b | 1518 | |
7be99413 TG |
1519 | static int dcbnl_ieee_del(struct net_device *netdev, struct nlmsghdr *nlh, |
1520 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
f9ae7e4b JF |
1521 | { |
1522 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1523 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1524 | int err; |
f9ae7e4b JF |
1525 | |
1526 | if (!ops) | |
1527 | return -EOPNOTSUPP; | |
1528 | ||
1529 | if (!tb[DCB_ATTR_IEEE]) | |
1530 | return -EINVAL; | |
1531 | ||
fceb6435 JB |
1532 | err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX, tb[DCB_ATTR_IEEE], |
1533 | dcbnl_ieee_policy, NULL); | |
f9ae7e4b JF |
1534 | if (err) |
1535 | return err; | |
1536 | ||
1537 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1538 | struct nlattr *attr; | |
1539 | int rem; | |
1540 | ||
1541 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1542 | struct dcb_app *app_data; | |
1543 | ||
1544 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1545 | continue; | |
1546 | app_data = nla_data(attr); | |
1547 | if (ops->ieee_delapp) | |
1548 | err = ops->ieee_delapp(netdev, app_data); | |
1549 | else | |
1550 | err = dcb_ieee_delapp(netdev, app_data); | |
1551 | if (err) | |
1552 | goto err; | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | err: | |
7be99413 | 1557 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1558 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_DEL, seq, 0); |
f9ae7e4b JF |
1559 | return err; |
1560 | } | |
1561 | ||
1562 | ||
6241b625 | 1563 | /* DCBX configuration */ |
7be99413 TG |
1564 | static int dcbnl_getdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1565 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1566 | { |
6241b625 | 1567 | if (!netdev->dcbnl_ops->getdcbx) |
7f891cf1 | 1568 | return -EOPNOTSUPP; |
6241b625 | 1569 | |
7be99413 TG |
1570 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1571 | netdev->dcbnl_ops->getdcbx(netdev)); | |
6241b625 SR |
1572 | } |
1573 | ||
7be99413 TG |
1574 | static int dcbnl_setdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1575 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1576 | { |
6241b625 SR |
1577 | u8 value; |
1578 | ||
7f891cf1 SR |
1579 | if (!netdev->dcbnl_ops->setdcbx) |
1580 | return -EOPNOTSUPP; | |
1581 | ||
1582 | if (!tb[DCB_ATTR_DCBX]) | |
1583 | return -EINVAL; | |
6241b625 SR |
1584 | |
1585 | value = nla_get_u8(tb[DCB_ATTR_DCBX]); | |
1586 | ||
7be99413 TG |
1587 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1588 | netdev->dcbnl_ops->setdcbx(netdev, value)); | |
6241b625 SR |
1589 | } |
1590 | ||
7be99413 TG |
1591 | static int dcbnl_getfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1592 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e | 1593 | { |
ea45fe4e SR |
1594 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1], *nest; |
1595 | u8 value; | |
7f891cf1 | 1596 | int ret, i; |
ea45fe4e SR |
1597 | int getall = 0; |
1598 | ||
7f891cf1 SR |
1599 | if (!netdev->dcbnl_ops->getfeatcfg) |
1600 | return -EOPNOTSUPP; | |
1601 | ||
1602 | if (!tb[DCB_ATTR_FEATCFG]) | |
1603 | return -EINVAL; | |
ea45fe4e | 1604 | |
fceb6435 JB |
1605 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, |
1606 | tb[DCB_ATTR_FEATCFG], dcbnl_featcfg_nest, NULL); | |
7f891cf1 | 1607 | if (ret) |
7be99413 | 1608 | return ret; |
ea45fe4e | 1609 | |
7be99413 TG |
1610 | nest = nla_nest_start(skb, DCB_ATTR_FEATCFG); |
1611 | if (!nest) | |
1612 | return -EMSGSIZE; | |
ea45fe4e SR |
1613 | |
1614 | if (data[DCB_FEATCFG_ATTR_ALL]) | |
1615 | getall = 1; | |
1616 | ||
1617 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1618 | if (!getall && !data[i]) | |
1619 | continue; | |
1620 | ||
1621 | ret = netdev->dcbnl_ops->getfeatcfg(netdev, i, &value); | |
7f891cf1 | 1622 | if (!ret) |
7be99413 | 1623 | ret = nla_put_u8(skb, i, value); |
ea45fe4e | 1624 | |
7f891cf1 | 1625 | if (ret) { |
7be99413 | 1626 | nla_nest_cancel(skb, nest); |
7f891cf1 SR |
1627 | goto nla_put_failure; |
1628 | } | |
ea45fe4e | 1629 | } |
7be99413 | 1630 | nla_nest_end(skb, nest); |
ea45fe4e | 1631 | |
7f891cf1 | 1632 | nla_put_failure: |
ea45fe4e SR |
1633 | return ret; |
1634 | } | |
1635 | ||
7be99413 TG |
1636 | static int dcbnl_setfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1637 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e SR |
1638 | { |
1639 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1]; | |
7f891cf1 | 1640 | int ret, i; |
ea45fe4e | 1641 | u8 value; |
ea45fe4e | 1642 | |
7f891cf1 SR |
1643 | if (!netdev->dcbnl_ops->setfeatcfg) |
1644 | return -ENOTSUPP; | |
1645 | ||
1646 | if (!tb[DCB_ATTR_FEATCFG]) | |
1647 | return -EINVAL; | |
ea45fe4e | 1648 | |
fceb6435 JB |
1649 | ret = nla_parse_nested(data, DCB_FEATCFG_ATTR_MAX, |
1650 | tb[DCB_ATTR_FEATCFG], dcbnl_featcfg_nest, NULL); | |
ea45fe4e | 1651 | |
7f891cf1 | 1652 | if (ret) |
ea45fe4e | 1653 | goto err; |
ea45fe4e SR |
1654 | |
1655 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1656 | if (data[i] == NULL) | |
1657 | continue; | |
1658 | ||
1659 | value = nla_get_u8(data[i]); | |
1660 | ||
1661 | ret = netdev->dcbnl_ops->setfeatcfg(netdev, i, value); | |
1662 | ||
1663 | if (ret) | |
7f891cf1 | 1664 | goto err; |
ea45fe4e | 1665 | } |
ea45fe4e | 1666 | err: |
7be99413 | 1667 | ret = nla_put_u8(skb, DCB_ATTR_FEATCFG, ret); |
7f891cf1 | 1668 | |
ea45fe4e SR |
1669 | return ret; |
1670 | } | |
1671 | ||
dc6ed1df | 1672 | /* Handle CEE DCBX GET commands. */ |
7be99413 TG |
1673 | static int dcbnl_cee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1674 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
dc6ed1df | 1675 | { |
dc6ed1df | 1676 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
dc6ed1df SR |
1677 | |
1678 | if (!ops) | |
1679 | return -EOPNOTSUPP; | |
1680 | ||
7be99413 | 1681 | return dcbnl_cee_fill(skb, netdev); |
dc6ed1df SR |
1682 | } |
1683 | ||
33a03aad TG |
1684 | struct reply_func { |
1685 | /* reply netlink message type */ | |
1686 | int type; | |
1687 | ||
1688 | /* function to fill message contents */ | |
1689 | int (*cb)(struct net_device *, struct nlmsghdr *, u32, | |
1690 | struct nlattr **, struct sk_buff *); | |
1691 | }; | |
1692 | ||
1693 | static const struct reply_func reply_funcs[DCB_CMD_MAX+1] = { | |
7be99413 TG |
1694 | [DCB_CMD_GSTATE] = { RTM_GETDCB, dcbnl_getstate }, |
1695 | [DCB_CMD_SSTATE] = { RTM_SETDCB, dcbnl_setstate }, | |
1696 | [DCB_CMD_PFC_GCFG] = { RTM_GETDCB, dcbnl_getpfccfg }, | |
1697 | [DCB_CMD_PFC_SCFG] = { RTM_SETDCB, dcbnl_setpfccfg }, | |
1698 | [DCB_CMD_GPERM_HWADDR] = { RTM_GETDCB, dcbnl_getperm_hwaddr }, | |
1699 | [DCB_CMD_GCAP] = { RTM_GETDCB, dcbnl_getcap }, | |
1700 | [DCB_CMD_GNUMTCS] = { RTM_GETDCB, dcbnl_getnumtcs }, | |
1701 | [DCB_CMD_SNUMTCS] = { RTM_SETDCB, dcbnl_setnumtcs }, | |
1702 | [DCB_CMD_PFC_GSTATE] = { RTM_GETDCB, dcbnl_getpfcstate }, | |
1703 | [DCB_CMD_PFC_SSTATE] = { RTM_SETDCB, dcbnl_setpfcstate }, | |
1704 | [DCB_CMD_GAPP] = { RTM_GETDCB, dcbnl_getapp }, | |
1705 | [DCB_CMD_SAPP] = { RTM_SETDCB, dcbnl_setapp }, | |
1706 | [DCB_CMD_PGTX_GCFG] = { RTM_GETDCB, dcbnl_pgtx_getcfg }, | |
1707 | [DCB_CMD_PGTX_SCFG] = { RTM_SETDCB, dcbnl_pgtx_setcfg }, | |
1708 | [DCB_CMD_PGRX_GCFG] = { RTM_GETDCB, dcbnl_pgrx_getcfg }, | |
1709 | [DCB_CMD_PGRX_SCFG] = { RTM_SETDCB, dcbnl_pgrx_setcfg }, | |
1710 | [DCB_CMD_SET_ALL] = { RTM_SETDCB, dcbnl_setall }, | |
1711 | [DCB_CMD_BCN_GCFG] = { RTM_GETDCB, dcbnl_bcn_getcfg }, | |
1712 | [DCB_CMD_BCN_SCFG] = { RTM_SETDCB, dcbnl_bcn_setcfg }, | |
1713 | [DCB_CMD_IEEE_GET] = { RTM_GETDCB, dcbnl_ieee_get }, | |
1714 | [DCB_CMD_IEEE_SET] = { RTM_SETDCB, dcbnl_ieee_set }, | |
1715 | [DCB_CMD_IEEE_DEL] = { RTM_SETDCB, dcbnl_ieee_del }, | |
1716 | [DCB_CMD_GDCBX] = { RTM_GETDCB, dcbnl_getdcbx }, | |
1717 | [DCB_CMD_SDCBX] = { RTM_SETDCB, dcbnl_setdcbx }, | |
1718 | [DCB_CMD_GFEATCFG] = { RTM_GETDCB, dcbnl_getfeatcfg }, | |
1719 | [DCB_CMD_SFEATCFG] = { RTM_SETDCB, dcbnl_setfeatcfg }, | |
1720 | [DCB_CMD_CEE_GET] = { RTM_GETDCB, dcbnl_cee_get }, | |
33a03aad TG |
1721 | }; |
1722 | ||
c21ef3e3 DA |
1723 | static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, |
1724 | struct netlink_ext_ack *extack) | |
2f90b865 AD |
1725 | { |
1726 | struct net *net = sock_net(skb->sk); | |
1727 | struct net_device *netdev; | |
7a282bc3 | 1728 | struct dcbmsg *dcb = nlmsg_data(nlh); |
2f90b865 | 1729 | struct nlattr *tb[DCB_ATTR_MAX + 1]; |
15e47304 | 1730 | u32 portid = skb ? NETLINK_CB(skb).portid : 0; |
2f90b865 | 1731 | int ret = -EINVAL; |
33a03aad | 1732 | struct sk_buff *reply_skb; |
39912f9c | 1733 | struct nlmsghdr *reply_nlh = NULL; |
33a03aad | 1734 | const struct reply_func *fn; |
2f90b865 | 1735 | |
90f62cf3 | 1736 | if ((nlh->nlmsg_type == RTM_SETDCB) && !netlink_capable(skb, CAP_NET_ADMIN)) |
dfc47ef8 EB |
1737 | return -EPERM; |
1738 | ||
2f90b865 | 1739 | ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX, |
c21ef3e3 | 1740 | dcbnl_rtnl_policy, extack); |
2f90b865 AD |
1741 | if (ret < 0) |
1742 | return ret; | |
1743 | ||
33a03aad TG |
1744 | if (dcb->cmd > DCB_CMD_MAX) |
1745 | return -EINVAL; | |
1746 | ||
1747 | /* check if a reply function has been defined for the command */ | |
1748 | fn = &reply_funcs[dcb->cmd]; | |
1749 | if (!fn->cb) | |
1750 | return -EOPNOTSUPP; | |
1751 | ||
2f90b865 AD |
1752 | if (!tb[DCB_ATTR_IFNAME]) |
1753 | return -EINVAL; | |
1754 | ||
d9ac62be | 1755 | netdev = __dev_get_by_name(net, nla_data(tb[DCB_ATTR_IFNAME])); |
2f90b865 | 1756 | if (!netdev) |
3d1f4869 | 1757 | return -ENODEV; |
2f90b865 | 1758 | |
d9ac62be YX |
1759 | if (!netdev->dcbnl_ops) |
1760 | return -EOPNOTSUPP; | |
2f90b865 | 1761 | |
15e47304 | 1762 | reply_skb = dcbnl_newmsg(fn->type, dcb->cmd, portid, nlh->nlmsg_seq, |
33a03aad | 1763 | nlh->nlmsg_flags, &reply_nlh); |
d9ac62be YX |
1764 | if (!reply_skb) |
1765 | return -ENOBUFS; | |
33a03aad TG |
1766 | |
1767 | ret = fn->cb(netdev, nlh, nlh->nlmsg_seq, tb, reply_skb); | |
1768 | if (ret < 0) { | |
1769 | nlmsg_free(reply_skb); | |
1770 | goto out; | |
1771 | } | |
1772 | ||
1773 | nlmsg_end(reply_skb, reply_nlh); | |
1774 | ||
7c77ab24 | 1775 | ret = rtnl_unicast(reply_skb, net, portid); |
2f90b865 | 1776 | out: |
2f90b865 AD |
1777 | return ret; |
1778 | } | |
1779 | ||
716b31ab TG |
1780 | static struct dcb_app_type *dcb_app_lookup(const struct dcb_app *app, |
1781 | int ifindex, int prio) | |
1782 | { | |
1783 | struct dcb_app_type *itr; | |
1784 | ||
1785 | list_for_each_entry(itr, &dcb_app_list, list) { | |
1786 | if (itr->app.selector == app->selector && | |
1787 | itr->app.protocol == app->protocol && | |
1788 | itr->ifindex == ifindex && | |
08193d1a | 1789 | ((prio == -1) || itr->app.priority == prio)) |
716b31ab TG |
1790 | return itr; |
1791 | } | |
1792 | ||
1793 | return NULL; | |
1794 | } | |
1795 | ||
4e4f2f69 TG |
1796 | static int dcb_app_add(const struct dcb_app *app, int ifindex) |
1797 | { | |
1798 | struct dcb_app_type *entry; | |
1799 | ||
1800 | entry = kmalloc(sizeof(*entry), GFP_ATOMIC); | |
1801 | if (!entry) | |
1802 | return -ENOMEM; | |
1803 | ||
1804 | memcpy(&entry->app, app, sizeof(*app)); | |
1805 | entry->ifindex = ifindex; | |
1806 | list_add(&entry->list, &dcb_app_list); | |
1807 | ||
1808 | return 0; | |
1809 | } | |
1810 | ||
9ab933ab JF |
1811 | /** |
1812 | * dcb_getapp - retrieve the DCBX application user priority | |
1813 | * | |
1814 | * On success returns a non-zero 802.1p user priority bitmap | |
1815 | * otherwise returns 0 as the invalid user priority bitmap to | |
1816 | * indicate an error. | |
1817 | */ | |
1818 | u8 dcb_getapp(struct net_device *dev, struct dcb_app *app) | |
1819 | { | |
1820 | struct dcb_app_type *itr; | |
1821 | u8 prio = 0; | |
1822 | ||
52cff74e | 1823 | spin_lock_bh(&dcb_lock); |
08193d1a PM |
1824 | itr = dcb_app_lookup(app, dev->ifindex, -1); |
1825 | if (itr) | |
716b31ab | 1826 | prio = itr->app.priority; |
52cff74e | 1827 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1828 | |
1829 | return prio; | |
1830 | } | |
1831 | EXPORT_SYMBOL(dcb_getapp); | |
1832 | ||
1833 | /** | |
b6db2174 | 1834 | * dcb_setapp - add CEE dcb application data to app list |
9ab933ab | 1835 | * |
b6db2174 JF |
1836 | * Priority 0 is an invalid priority in CEE spec. This routine |
1837 | * removes applications from the app list if the priority is | |
16eecd9b | 1838 | * set to zero. Priority is expected to be 8-bit 802.1p user priority bitmap |
9ab933ab | 1839 | */ |
ab6baf98 | 1840 | int dcb_setapp(struct net_device *dev, struct dcb_app *new) |
9ab933ab JF |
1841 | { |
1842 | struct dcb_app_type *itr; | |
7ec79270 | 1843 | struct dcb_app_type event; |
4e4f2f69 | 1844 | int err = 0; |
7ec79270 | 1845 | |
e290ed81 | 1846 | event.ifindex = dev->ifindex; |
7ec79270 | 1847 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1848 | if (dev->dcbnl_ops->getdcbx) |
1849 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
9ab933ab | 1850 | |
52cff74e | 1851 | spin_lock_bh(&dcb_lock); |
9ab933ab | 1852 | /* Search for existing match and replace */ |
08193d1a PM |
1853 | itr = dcb_app_lookup(new, dev->ifindex, -1); |
1854 | if (itr) { | |
716b31ab TG |
1855 | if (new->priority) |
1856 | itr->app.priority = new->priority; | |
1857 | else { | |
1858 | list_del(&itr->list); | |
1859 | kfree(itr); | |
9ab933ab | 1860 | } |
716b31ab | 1861 | goto out; |
9ab933ab JF |
1862 | } |
1863 | /* App type does not exist add new application type */ | |
4e4f2f69 TG |
1864 | if (new->priority) |
1865 | err = dcb_app_add(new, dev->ifindex); | |
9ab933ab | 1866 | out: |
52cff74e | 1867 | spin_unlock_bh(&dcb_lock); |
4e4f2f69 TG |
1868 | if (!err) |
1869 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1870 | return err; | |
9ab933ab JF |
1871 | } |
1872 | EXPORT_SYMBOL(dcb_setapp); | |
1873 | ||
a364c8cf JF |
1874 | /** |
1875 | * dcb_ieee_getapp_mask - retrieve the IEEE DCB application priority | |
1876 | * | |
1877 | * Helper routine which on success returns a non-zero 802.1Qaz user | |
1878 | * priority bitmap otherwise returns 0 to indicate the dcb_app was | |
1879 | * not found in APP list. | |
1880 | */ | |
1881 | u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app) | |
1882 | { | |
1883 | struct dcb_app_type *itr; | |
1884 | u8 prio = 0; | |
1885 | ||
52cff74e | 1886 | spin_lock_bh(&dcb_lock); |
08193d1a PM |
1887 | itr = dcb_app_lookup(app, dev->ifindex, -1); |
1888 | if (itr) | |
716b31ab | 1889 | prio |= 1 << itr->app.priority; |
52cff74e | 1890 | spin_unlock_bh(&dcb_lock); |
a364c8cf JF |
1891 | |
1892 | return prio; | |
1893 | } | |
1894 | EXPORT_SYMBOL(dcb_ieee_getapp_mask); | |
1895 | ||
b6db2174 JF |
1896 | /** |
1897 | * dcb_ieee_setapp - add IEEE dcb application data to app list | |
1898 | * | |
1899 | * This adds Application data to the list. Multiple application | |
1900 | * entries may exists for the same selector and protocol as long | |
16eecd9b AB |
1901 | * as the priorities are different. Priority is expected to be a |
1902 | * 3-bit unsigned integer | |
b6db2174 JF |
1903 | */ |
1904 | int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new) | |
1905 | { | |
b6db2174 JF |
1906 | struct dcb_app_type event; |
1907 | int err = 0; | |
1908 | ||
e290ed81 | 1909 | event.ifindex = dev->ifindex; |
b6db2174 | 1910 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1911 | if (dev->dcbnl_ops->getdcbx) |
1912 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
b6db2174 | 1913 | |
52cff74e | 1914 | spin_lock_bh(&dcb_lock); |
b6db2174 | 1915 | /* Search for existing match and abort if found */ |
716b31ab TG |
1916 | if (dcb_app_lookup(new, dev->ifindex, new->priority)) { |
1917 | err = -EEXIST; | |
1918 | goto out; | |
b6db2174 JF |
1919 | } |
1920 | ||
4e4f2f69 | 1921 | err = dcb_app_add(new, dev->ifindex); |
b6db2174 | 1922 | out: |
52cff74e | 1923 | spin_unlock_bh(&dcb_lock); |
b6db2174 JF |
1924 | if (!err) |
1925 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1926 | return err; | |
1927 | } | |
1928 | EXPORT_SYMBOL(dcb_ieee_setapp); | |
1929 | ||
f9ae7e4b JF |
1930 | /** |
1931 | * dcb_ieee_delapp - delete IEEE dcb application data from list | |
1932 | * | |
1933 | * This removes a matching APP data from the APP list | |
1934 | */ | |
1935 | int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del) | |
1936 | { | |
1937 | struct dcb_app_type *itr; | |
1938 | struct dcb_app_type event; | |
1939 | int err = -ENOENT; | |
1940 | ||
e290ed81 | 1941 | event.ifindex = dev->ifindex; |
f9ae7e4b | 1942 | memcpy(&event.app, del, sizeof(event.app)); |
6bd0e1cb JF |
1943 | if (dev->dcbnl_ops->getdcbx) |
1944 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
f9ae7e4b | 1945 | |
52cff74e | 1946 | spin_lock_bh(&dcb_lock); |
f9ae7e4b | 1947 | /* Search for existing match and remove it. */ |
716b31ab TG |
1948 | if ((itr = dcb_app_lookup(del, dev->ifindex, del->priority))) { |
1949 | list_del(&itr->list); | |
1950 | kfree(itr); | |
1951 | err = 0; | |
f9ae7e4b JF |
1952 | } |
1953 | ||
52cff74e | 1954 | spin_unlock_bh(&dcb_lock); |
f9ae7e4b JF |
1955 | if (!err) |
1956 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1957 | return err; | |
1958 | } | |
1959 | EXPORT_SYMBOL(dcb_ieee_delapp); | |
1960 | ||
b67c540b PM |
1961 | /** |
1962 | * dcb_ieee_getapp_prio_dscp_mask_map - For a given device, find mapping from | |
1963 | * priorities to the DSCP values assigned to that priority. Initialize p_map | |
1964 | * such that each map element holds a bit mask of DSCP values configured for | |
1965 | * that priority by APP entries. | |
1966 | */ | |
1967 | void dcb_ieee_getapp_prio_dscp_mask_map(const struct net_device *dev, | |
1968 | struct dcb_ieee_app_prio_map *p_map) | |
1969 | { | |
1970 | int ifindex = dev->ifindex; | |
1971 | struct dcb_app_type *itr; | |
1972 | u8 prio; | |
1973 | ||
1974 | memset(p_map->map, 0, sizeof(p_map->map)); | |
1975 | ||
1976 | spin_lock_bh(&dcb_lock); | |
1977 | list_for_each_entry(itr, &dcb_app_list, list) { | |
1978 | if (itr->ifindex == ifindex && | |
1979 | itr->app.selector == IEEE_8021QAZ_APP_SEL_DSCP && | |
1980 | itr->app.protocol < 64 && | |
1981 | itr->app.priority < IEEE_8021QAZ_MAX_TCS) { | |
1982 | prio = itr->app.priority; | |
1983 | p_map->map[prio] |= 1ULL << itr->app.protocol; | |
1984 | } | |
1985 | } | |
1986 | spin_unlock_bh(&dcb_lock); | |
1987 | } | |
1988 | EXPORT_SYMBOL(dcb_ieee_getapp_prio_dscp_mask_map); | |
1989 | ||
1990 | /** | |
1991 | * dcb_ieee_getapp_dscp_prio_mask_map - For a given device, find mapping from | |
1992 | * DSCP values to the priorities assigned to that DSCP value. Initialize p_map | |
1993 | * such that each map element holds a bit mask of priorities configured for a | |
1994 | * given DSCP value by APP entries. | |
1995 | */ | |
1996 | void | |
1997 | dcb_ieee_getapp_dscp_prio_mask_map(const struct net_device *dev, | |
1998 | struct dcb_ieee_app_dscp_map *p_map) | |
1999 | { | |
2000 | int ifindex = dev->ifindex; | |
2001 | struct dcb_app_type *itr; | |
2002 | ||
2003 | memset(p_map->map, 0, sizeof(p_map->map)); | |
2004 | ||
2005 | spin_lock_bh(&dcb_lock); | |
2006 | list_for_each_entry(itr, &dcb_app_list, list) { | |
2007 | if (itr->ifindex == ifindex && | |
2008 | itr->app.selector == IEEE_8021QAZ_APP_SEL_DSCP && | |
2009 | itr->app.protocol < 64 && | |
2010 | itr->app.priority < IEEE_8021QAZ_MAX_TCS) | |
2011 | p_map->map[itr->app.protocol] |= 1 << itr->app.priority; | |
2012 | } | |
2013 | spin_unlock_bh(&dcb_lock); | |
2014 | } | |
2015 | EXPORT_SYMBOL(dcb_ieee_getapp_dscp_prio_mask_map); | |
2016 | ||
2017 | /** | |
2018 | * Per 802.1Q-2014, the selector value of 1 is used for matching on Ethernet | |
2019 | * type, with valid PID values >= 1536. A special meaning is then assigned to | |
2020 | * protocol value of 0: "default priority. For use when priority is not | |
2021 | * otherwise specified". | |
2022 | * | |
2023 | * dcb_ieee_getapp_default_prio_mask - For a given device, find all APP entries | |
2024 | * of the form {$PRIO, ETHERTYPE, 0} and construct a bit mask of all default | |
2025 | * priorities set by these entries. | |
2026 | */ | |
2027 | u8 dcb_ieee_getapp_default_prio_mask(const struct net_device *dev) | |
2028 | { | |
2029 | int ifindex = dev->ifindex; | |
2030 | struct dcb_app_type *itr; | |
2031 | u8 mask = 0; | |
2032 | ||
2033 | spin_lock_bh(&dcb_lock); | |
2034 | list_for_each_entry(itr, &dcb_app_list, list) { | |
2035 | if (itr->ifindex == ifindex && | |
2036 | itr->app.selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE && | |
2037 | itr->app.protocol == 0 && | |
2038 | itr->app.priority < IEEE_8021QAZ_MAX_TCS) | |
2039 | mask |= 1 << itr->app.priority; | |
2040 | } | |
2041 | spin_unlock_bh(&dcb_lock); | |
2042 | ||
2043 | return mask; | |
2044 | } | |
2045 | EXPORT_SYMBOL(dcb_ieee_getapp_default_prio_mask); | |
2046 | ||
2f90b865 AD |
2047 | static int __init dcbnl_init(void) |
2048 | { | |
9ab933ab JF |
2049 | INIT_LIST_HEAD(&dcb_app_list); |
2050 | ||
b97bac64 FW |
2051 | rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, 0); |
2052 | rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, 0); | |
2f90b865 AD |
2053 | |
2054 | return 0; | |
2055 | } | |
36b9ad80 | 2056 | device_initcall(dcbnl_init); |