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9952f691 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
2f90b865 | 2 | /* |
698e1d23 | 3 | * Copyright (c) 2008-2011, Intel Corporation. |
2f90b865 | 4 | * |
36b9ad80 | 5 | * Description: Data Center Bridging netlink interface |
2f90b865 AD |
6 | * Author: Lucy Liu <lucy.liu@intel.com> |
7 | */ | |
8 | ||
9 | #include <linux/netdevice.h> | |
10 | #include <linux/netlink.h> | |
5a0e3ad6 | 11 | #include <linux/slab.h> |
2f90b865 AD |
12 | #include <net/netlink.h> |
13 | #include <net/rtnetlink.h> | |
14 | #include <linux/dcbnl.h> | |
96b99684 | 15 | #include <net/dcbevent.h> |
2f90b865 | 16 | #include <linux/rtnetlink.h> |
36b9ad80 | 17 | #include <linux/init.h> |
2f90b865 AD |
18 | #include <net/sock.h> |
19 | ||
ae86b9e3 | 20 | /* Data Center Bridging (DCB) is a collection of Ethernet enhancements |
2f90b865 AD |
21 | * intended to allow network traffic with differing requirements |
22 | * (highly reliable, no drops vs. best effort vs. low latency) to operate | |
23 | * and co-exist on Ethernet. Current DCB features are: | |
24 | * | |
25 | * Enhanced Transmission Selection (aka Priority Grouping [PG]) - provides a | |
26 | * framework for assigning bandwidth guarantees to traffic classes. | |
27 | * | |
28 | * Priority-based Flow Control (PFC) - provides a flow control mechanism which | |
29 | * can work independently for each 802.1p priority. | |
30 | * | |
31 | * Congestion Notification - provides a mechanism for end-to-end congestion | |
32 | * control for protocols which do not have built-in congestion management. | |
33 | * | |
34 | * More information about the emerging standards for these Ethernet features | |
35 | * can be found at: http://www.ieee802.org/1/pages/dcbridges.html | |
36 | * | |
37 | * This file implements an rtnetlink interface to allow configuration of DCB | |
38 | * features for capable devices. | |
39 | */ | |
40 | ||
2f90b865 AD |
41 | /**************** DCB attribute policies *************************************/ |
42 | ||
43 | /* DCB netlink attributes policy */ | |
b54452b0 | 44 | static const struct nla_policy dcbnl_rtnl_policy[DCB_ATTR_MAX + 1] = { |
859ee3c4 AD |
45 | [DCB_ATTR_IFNAME] = {.type = NLA_NUL_STRING, .len = IFNAMSIZ - 1}, |
46 | [DCB_ATTR_STATE] = {.type = NLA_U8}, | |
47 | [DCB_ATTR_PFC_CFG] = {.type = NLA_NESTED}, | |
48 | [DCB_ATTR_PG_CFG] = {.type = NLA_NESTED}, | |
49 | [DCB_ATTR_SET_ALL] = {.type = NLA_U8}, | |
2f90b865 | 50 | [DCB_ATTR_PERM_HWADDR] = {.type = NLA_FLAG}, |
859ee3c4 AD |
51 | [DCB_ATTR_CAP] = {.type = NLA_NESTED}, |
52 | [DCB_ATTR_PFC_STATE] = {.type = NLA_U8}, | |
53 | [DCB_ATTR_BCN] = {.type = NLA_NESTED}, | |
6fa382af | 54 | [DCB_ATTR_APP] = {.type = NLA_NESTED}, |
3e29027a | 55 | [DCB_ATTR_IEEE] = {.type = NLA_NESTED}, |
6241b625 | 56 | [DCB_ATTR_DCBX] = {.type = NLA_U8}, |
ea45fe4e | 57 | [DCB_ATTR_FEATCFG] = {.type = NLA_NESTED}, |
2f90b865 AD |
58 | }; |
59 | ||
60 | /* DCB priority flow control to User Priority nested attributes */ | |
b54452b0 | 61 | static const struct nla_policy dcbnl_pfc_up_nest[DCB_PFC_UP_ATTR_MAX + 1] = { |
2f90b865 AD |
62 | [DCB_PFC_UP_ATTR_0] = {.type = NLA_U8}, |
63 | [DCB_PFC_UP_ATTR_1] = {.type = NLA_U8}, | |
64 | [DCB_PFC_UP_ATTR_2] = {.type = NLA_U8}, | |
65 | [DCB_PFC_UP_ATTR_3] = {.type = NLA_U8}, | |
66 | [DCB_PFC_UP_ATTR_4] = {.type = NLA_U8}, | |
67 | [DCB_PFC_UP_ATTR_5] = {.type = NLA_U8}, | |
68 | [DCB_PFC_UP_ATTR_6] = {.type = NLA_U8}, | |
69 | [DCB_PFC_UP_ATTR_7] = {.type = NLA_U8}, | |
70 | [DCB_PFC_UP_ATTR_ALL] = {.type = NLA_FLAG}, | |
71 | }; | |
72 | ||
73 | /* DCB priority grouping nested attributes */ | |
b54452b0 | 74 | static const struct nla_policy dcbnl_pg_nest[DCB_PG_ATTR_MAX + 1] = { |
2f90b865 AD |
75 | [DCB_PG_ATTR_TC_0] = {.type = NLA_NESTED}, |
76 | [DCB_PG_ATTR_TC_1] = {.type = NLA_NESTED}, | |
77 | [DCB_PG_ATTR_TC_2] = {.type = NLA_NESTED}, | |
78 | [DCB_PG_ATTR_TC_3] = {.type = NLA_NESTED}, | |
79 | [DCB_PG_ATTR_TC_4] = {.type = NLA_NESTED}, | |
80 | [DCB_PG_ATTR_TC_5] = {.type = NLA_NESTED}, | |
81 | [DCB_PG_ATTR_TC_6] = {.type = NLA_NESTED}, | |
82 | [DCB_PG_ATTR_TC_7] = {.type = NLA_NESTED}, | |
83 | [DCB_PG_ATTR_TC_ALL] = {.type = NLA_NESTED}, | |
84 | [DCB_PG_ATTR_BW_ID_0] = {.type = NLA_U8}, | |
85 | [DCB_PG_ATTR_BW_ID_1] = {.type = NLA_U8}, | |
86 | [DCB_PG_ATTR_BW_ID_2] = {.type = NLA_U8}, | |
87 | [DCB_PG_ATTR_BW_ID_3] = {.type = NLA_U8}, | |
88 | [DCB_PG_ATTR_BW_ID_4] = {.type = NLA_U8}, | |
89 | [DCB_PG_ATTR_BW_ID_5] = {.type = NLA_U8}, | |
90 | [DCB_PG_ATTR_BW_ID_6] = {.type = NLA_U8}, | |
91 | [DCB_PG_ATTR_BW_ID_7] = {.type = NLA_U8}, | |
92 | [DCB_PG_ATTR_BW_ID_ALL] = {.type = NLA_FLAG}, | |
93 | }; | |
94 | ||
95 | /* DCB traffic class nested attributes. */ | |
b54452b0 | 96 | static const struct nla_policy dcbnl_tc_param_nest[DCB_TC_ATTR_PARAM_MAX + 1] = { |
2f90b865 AD |
97 | [DCB_TC_ATTR_PARAM_PGID] = {.type = NLA_U8}, |
98 | [DCB_TC_ATTR_PARAM_UP_MAPPING] = {.type = NLA_U8}, | |
99 | [DCB_TC_ATTR_PARAM_STRICT_PRIO] = {.type = NLA_U8}, | |
100 | [DCB_TC_ATTR_PARAM_BW_PCT] = {.type = NLA_U8}, | |
101 | [DCB_TC_ATTR_PARAM_ALL] = {.type = NLA_FLAG}, | |
102 | }; | |
103 | ||
46132188 | 104 | /* DCB capabilities nested attributes. */ |
b54452b0 | 105 | static const struct nla_policy dcbnl_cap_nest[DCB_CAP_ATTR_MAX + 1] = { |
46132188 AD |
106 | [DCB_CAP_ATTR_ALL] = {.type = NLA_FLAG}, |
107 | [DCB_CAP_ATTR_PG] = {.type = NLA_U8}, | |
108 | [DCB_CAP_ATTR_PFC] = {.type = NLA_U8}, | |
109 | [DCB_CAP_ATTR_UP2TC] = {.type = NLA_U8}, | |
110 | [DCB_CAP_ATTR_PG_TCS] = {.type = NLA_U8}, | |
111 | [DCB_CAP_ATTR_PFC_TCS] = {.type = NLA_U8}, | |
112 | [DCB_CAP_ATTR_GSP] = {.type = NLA_U8}, | |
113 | [DCB_CAP_ATTR_BCN] = {.type = NLA_U8}, | |
6241b625 | 114 | [DCB_CAP_ATTR_DCBX] = {.type = NLA_U8}, |
46132188 | 115 | }; |
2f90b865 | 116 | |
33dbabc4 | 117 | /* DCB capabilities nested attributes. */ |
b54452b0 | 118 | static const struct nla_policy dcbnl_numtcs_nest[DCB_NUMTCS_ATTR_MAX + 1] = { |
33dbabc4 AD |
119 | [DCB_NUMTCS_ATTR_ALL] = {.type = NLA_FLAG}, |
120 | [DCB_NUMTCS_ATTR_PG] = {.type = NLA_U8}, | |
121 | [DCB_NUMTCS_ATTR_PFC] = {.type = NLA_U8}, | |
122 | }; | |
123 | ||
859ee3c4 | 124 | /* DCB BCN nested attributes. */ |
b54452b0 | 125 | static const struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = { |
859ee3c4 AD |
126 | [DCB_BCN_ATTR_RP_0] = {.type = NLA_U8}, |
127 | [DCB_BCN_ATTR_RP_1] = {.type = NLA_U8}, | |
128 | [DCB_BCN_ATTR_RP_2] = {.type = NLA_U8}, | |
129 | [DCB_BCN_ATTR_RP_3] = {.type = NLA_U8}, | |
130 | [DCB_BCN_ATTR_RP_4] = {.type = NLA_U8}, | |
131 | [DCB_BCN_ATTR_RP_5] = {.type = NLA_U8}, | |
132 | [DCB_BCN_ATTR_RP_6] = {.type = NLA_U8}, | |
133 | [DCB_BCN_ATTR_RP_7] = {.type = NLA_U8}, | |
134 | [DCB_BCN_ATTR_RP_ALL] = {.type = NLA_FLAG}, | |
f4314e81 DS |
135 | [DCB_BCN_ATTR_BCNA_0] = {.type = NLA_U32}, |
136 | [DCB_BCN_ATTR_BCNA_1] = {.type = NLA_U32}, | |
859ee3c4 AD |
137 | [DCB_BCN_ATTR_ALPHA] = {.type = NLA_U32}, |
138 | [DCB_BCN_ATTR_BETA] = {.type = NLA_U32}, | |
139 | [DCB_BCN_ATTR_GD] = {.type = NLA_U32}, | |
140 | [DCB_BCN_ATTR_GI] = {.type = NLA_U32}, | |
141 | [DCB_BCN_ATTR_TMAX] = {.type = NLA_U32}, | |
142 | [DCB_BCN_ATTR_TD] = {.type = NLA_U32}, | |
143 | [DCB_BCN_ATTR_RMIN] = {.type = NLA_U32}, | |
144 | [DCB_BCN_ATTR_W] = {.type = NLA_U32}, | |
145 | [DCB_BCN_ATTR_RD] = {.type = NLA_U32}, | |
146 | [DCB_BCN_ATTR_RU] = {.type = NLA_U32}, | |
147 | [DCB_BCN_ATTR_WRTT] = {.type = NLA_U32}, | |
148 | [DCB_BCN_ATTR_RI] = {.type = NLA_U32}, | |
149 | [DCB_BCN_ATTR_C] = {.type = NLA_U32}, | |
150 | [DCB_BCN_ATTR_ALL] = {.type = NLA_FLAG}, | |
151 | }; | |
152 | ||
6fa382af | 153 | /* DCB APP nested attributes. */ |
b54452b0 | 154 | static const struct nla_policy dcbnl_app_nest[DCB_APP_ATTR_MAX + 1] = { |
6fa382af YZ |
155 | [DCB_APP_ATTR_IDTYPE] = {.type = NLA_U8}, |
156 | [DCB_APP_ATTR_ID] = {.type = NLA_U16}, | |
157 | [DCB_APP_ATTR_PRIORITY] = {.type = NLA_U8}, | |
158 | }; | |
159 | ||
3e29027a JF |
160 | /* IEEE 802.1Qaz nested attributes. */ |
161 | static const struct nla_policy dcbnl_ieee_policy[DCB_ATTR_IEEE_MAX + 1] = { | |
162 | [DCB_ATTR_IEEE_ETS] = {.len = sizeof(struct ieee_ets)}, | |
163 | [DCB_ATTR_IEEE_PFC] = {.len = sizeof(struct ieee_pfc)}, | |
164 | [DCB_ATTR_IEEE_APP_TABLE] = {.type = NLA_NESTED}, | |
08f10aff | 165 | [DCB_ATTR_IEEE_MAXRATE] = {.len = sizeof(struct ieee_maxrate)}, |
c9368247 SM |
166 | [DCB_ATTR_IEEE_QCN] = {.len = sizeof(struct ieee_qcn)}, |
167 | [DCB_ATTR_IEEE_QCN_STATS] = {.len = sizeof(struct ieee_qcn_stats)}, | |
e549f6f9 | 168 | [DCB_ATTR_DCB_BUFFER] = {.len = sizeof(struct dcbnl_buffer)}, |
3e29027a JF |
169 | }; |
170 | ||
ea45fe4e SR |
171 | /* DCB number of traffic classes nested attributes. */ |
172 | static const struct nla_policy dcbnl_featcfg_nest[DCB_FEATCFG_ATTR_MAX + 1] = { | |
173 | [DCB_FEATCFG_ATTR_ALL] = {.type = NLA_FLAG}, | |
174 | [DCB_FEATCFG_ATTR_PG] = {.type = NLA_U8}, | |
175 | [DCB_FEATCFG_ATTR_PFC] = {.type = NLA_U8}, | |
176 | [DCB_FEATCFG_ATTR_APP] = {.type = NLA_U8}, | |
177 | }; | |
178 | ||
9ab933ab JF |
179 | static LIST_HEAD(dcb_app_list); |
180 | static DEFINE_SPINLOCK(dcb_lock); | |
181 | ||
33a03aad TG |
182 | static struct sk_buff *dcbnl_newmsg(int type, u8 cmd, u32 port, u32 seq, |
183 | u32 flags, struct nlmsghdr **nlhp) | |
184 | { | |
185 | struct sk_buff *skb; | |
186 | struct dcbmsg *dcb; | |
187 | struct nlmsghdr *nlh; | |
188 | ||
189 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
190 | if (!skb) | |
191 | return NULL; | |
192 | ||
193 | nlh = nlmsg_put(skb, port, seq, type, sizeof(*dcb), flags); | |
b3908e22 | 194 | BUG_ON(!nlh); |
33a03aad TG |
195 | |
196 | dcb = nlmsg_data(nlh); | |
197 | dcb->dcb_family = AF_UNSPEC; | |
198 | dcb->cmd = cmd; | |
199 | dcb->dcb_pad = 0; | |
200 | ||
201 | if (nlhp) | |
202 | *nlhp = nlh; | |
203 | ||
204 | return skb; | |
205 | } | |
206 | ||
7be99413 TG |
207 | static int dcbnl_getstate(struct net_device *netdev, struct nlmsghdr *nlh, |
208 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 209 | { |
2f90b865 AD |
210 | /* if (!tb[DCB_ATTR_STATE] || !netdev->dcbnl_ops->getstate) */ |
211 | if (!netdev->dcbnl_ops->getstate) | |
3d1f4869 | 212 | return -EOPNOTSUPP; |
2f90b865 | 213 | |
7be99413 TG |
214 | return nla_put_u8(skb, DCB_ATTR_STATE, |
215 | netdev->dcbnl_ops->getstate(netdev)); | |
2f90b865 AD |
216 | } |
217 | ||
7be99413 TG |
218 | static int dcbnl_getpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
219 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 220 | { |
2f90b865 AD |
221 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1], *nest; |
222 | u8 value; | |
3d1f4869 | 223 | int ret; |
2f90b865 AD |
224 | int i; |
225 | int getall = 0; | |
226 | ||
3d1f4869 TG |
227 | if (!tb[DCB_ATTR_PFC_CFG]) |
228 | return -EINVAL; | |
229 | ||
230 | if (!netdev->dcbnl_ops->getpfccfg) | |
231 | return -EOPNOTSUPP; | |
2f90b865 | 232 | |
8cb08174 JB |
233 | ret = nla_parse_nested_deprecated(data, DCB_PFC_UP_ATTR_MAX, |
234 | tb[DCB_ATTR_PFC_CFG], | |
235 | dcbnl_pfc_up_nest, NULL); | |
2f90b865 | 236 | if (ret) |
3d1f4869 | 237 | return ret; |
2f90b865 | 238 | |
ae0be8de | 239 | nest = nla_nest_start_noflag(skb, DCB_ATTR_PFC_CFG); |
2f90b865 | 240 | if (!nest) |
3d1f4869 | 241 | return -EMSGSIZE; |
2f90b865 AD |
242 | |
243 | if (data[DCB_PFC_UP_ATTR_ALL]) | |
244 | getall = 1; | |
245 | ||
246 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
247 | if (!getall && !data[i]) | |
248 | continue; | |
249 | ||
250 | netdev->dcbnl_ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, | |
251 | &value); | |
7be99413 | 252 | ret = nla_put_u8(skb, i, value); |
2f90b865 | 253 | if (ret) { |
7be99413 | 254 | nla_nest_cancel(skb, nest); |
3d1f4869 | 255 | return ret; |
2f90b865 AD |
256 | } |
257 | } | |
7be99413 | 258 | nla_nest_end(skb, nest); |
2f90b865 AD |
259 | |
260 | return 0; | |
2f90b865 AD |
261 | } |
262 | ||
7be99413 TG |
263 | static int dcbnl_getperm_hwaddr(struct net_device *netdev, struct nlmsghdr *nlh, |
264 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 265 | { |
2f90b865 | 266 | u8 perm_addr[MAX_ADDR_LEN]; |
2f90b865 AD |
267 | |
268 | if (!netdev->dcbnl_ops->getpermhwaddr) | |
3d1f4869 | 269 | return -EOPNOTSUPP; |
2f90b865 | 270 | |
29cd8ae0 | 271 | memset(perm_addr, 0, sizeof(perm_addr)); |
2f90b865 AD |
272 | netdev->dcbnl_ops->getpermhwaddr(netdev, perm_addr); |
273 | ||
7be99413 | 274 | return nla_put(skb, DCB_ATTR_PERM_HWADDR, sizeof(perm_addr), perm_addr); |
2f90b865 AD |
275 | } |
276 | ||
7be99413 TG |
277 | static int dcbnl_getcap(struct net_device *netdev, struct nlmsghdr *nlh, |
278 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
46132188 | 279 | { |
46132188 AD |
280 | struct nlattr *data[DCB_CAP_ATTR_MAX + 1], *nest; |
281 | u8 value; | |
3d1f4869 | 282 | int ret; |
46132188 AD |
283 | int i; |
284 | int getall = 0; | |
285 | ||
3d1f4869 TG |
286 | if (!tb[DCB_ATTR_CAP]) |
287 | return -EINVAL; | |
288 | ||
289 | if (!netdev->dcbnl_ops->getcap) | |
290 | return -EOPNOTSUPP; | |
46132188 | 291 | |
8cb08174 JB |
292 | ret = nla_parse_nested_deprecated(data, DCB_CAP_ATTR_MAX, |
293 | tb[DCB_ATTR_CAP], dcbnl_cap_nest, | |
294 | NULL); | |
46132188 | 295 | if (ret) |
3d1f4869 | 296 | return ret; |
46132188 | 297 | |
ae0be8de | 298 | nest = nla_nest_start_noflag(skb, DCB_ATTR_CAP); |
46132188 | 299 | if (!nest) |
3d1f4869 | 300 | return -EMSGSIZE; |
46132188 AD |
301 | |
302 | if (data[DCB_CAP_ATTR_ALL]) | |
303 | getall = 1; | |
304 | ||
305 | for (i = DCB_CAP_ATTR_ALL+1; i <= DCB_CAP_ATTR_MAX; i++) { | |
306 | if (!getall && !data[i]) | |
307 | continue; | |
308 | ||
309 | if (!netdev->dcbnl_ops->getcap(netdev, i, &value)) { | |
7be99413 | 310 | ret = nla_put_u8(skb, i, value); |
46132188 | 311 | if (ret) { |
7be99413 | 312 | nla_nest_cancel(skb, nest); |
3d1f4869 | 313 | return ret; |
46132188 AD |
314 | } |
315 | } | |
316 | } | |
7be99413 | 317 | nla_nest_end(skb, nest); |
46132188 AD |
318 | |
319 | return 0; | |
46132188 AD |
320 | } |
321 | ||
7be99413 TG |
322 | static int dcbnl_getnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
323 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 | 324 | { |
33dbabc4 AD |
325 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1], *nest; |
326 | u8 value; | |
3d1f4869 | 327 | int ret; |
33dbabc4 AD |
328 | int i; |
329 | int getall = 0; | |
330 | ||
3d1f4869 TG |
331 | if (!tb[DCB_ATTR_NUMTCS]) |
332 | return -EINVAL; | |
333 | ||
334 | if (!netdev->dcbnl_ops->getnumtcs) | |
335 | return -EOPNOTSUPP; | |
33dbabc4 | 336 | |
8cb08174 JB |
337 | ret = nla_parse_nested_deprecated(data, DCB_NUMTCS_ATTR_MAX, |
338 | tb[DCB_ATTR_NUMTCS], | |
339 | dcbnl_numtcs_nest, NULL); | |
3d1f4869 TG |
340 | if (ret) |
341 | return ret; | |
33dbabc4 | 342 | |
ae0be8de | 343 | nest = nla_nest_start_noflag(skb, DCB_ATTR_NUMTCS); |
3d1f4869 TG |
344 | if (!nest) |
345 | return -EMSGSIZE; | |
33dbabc4 AD |
346 | |
347 | if (data[DCB_NUMTCS_ATTR_ALL]) | |
348 | getall = 1; | |
349 | ||
350 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
351 | if (!getall && !data[i]) | |
352 | continue; | |
353 | ||
354 | ret = netdev->dcbnl_ops->getnumtcs(netdev, i, &value); | |
355 | if (!ret) { | |
7be99413 | 356 | ret = nla_put_u8(skb, i, value); |
33dbabc4 | 357 | if (ret) { |
7be99413 | 358 | nla_nest_cancel(skb, nest); |
3d1f4869 | 359 | return ret; |
33dbabc4 | 360 | } |
3d1f4869 TG |
361 | } else |
362 | return -EINVAL; | |
33dbabc4 | 363 | } |
7be99413 | 364 | nla_nest_end(skb, nest); |
33dbabc4 AD |
365 | |
366 | return 0; | |
33dbabc4 AD |
367 | } |
368 | ||
7be99413 TG |
369 | static int dcbnl_setnumtcs(struct net_device *netdev, struct nlmsghdr *nlh, |
370 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
33dbabc4 AD |
371 | { |
372 | struct nlattr *data[DCB_NUMTCS_ATTR_MAX + 1]; | |
3d1f4869 | 373 | int ret; |
33dbabc4 AD |
374 | u8 value; |
375 | int i; | |
376 | ||
3d1f4869 TG |
377 | if (!tb[DCB_ATTR_NUMTCS]) |
378 | return -EINVAL; | |
379 | ||
380 | if (!netdev->dcbnl_ops->setnumtcs) | |
381 | return -EOPNOTSUPP; | |
33dbabc4 | 382 | |
8cb08174 JB |
383 | ret = nla_parse_nested_deprecated(data, DCB_NUMTCS_ATTR_MAX, |
384 | tb[DCB_ATTR_NUMTCS], | |
385 | dcbnl_numtcs_nest, NULL); | |
7be99413 | 386 | if (ret) |
3d1f4869 | 387 | return ret; |
33dbabc4 AD |
388 | |
389 | for (i = DCB_NUMTCS_ATTR_ALL+1; i <= DCB_NUMTCS_ATTR_MAX; i++) { | |
390 | if (data[i] == NULL) | |
391 | continue; | |
392 | ||
393 | value = nla_get_u8(data[i]); | |
394 | ||
395 | ret = netdev->dcbnl_ops->setnumtcs(netdev, i, value); | |
33dbabc4 | 396 | if (ret) |
7be99413 | 397 | break; |
33dbabc4 AD |
398 | } |
399 | ||
7be99413 | 400 | return nla_put_u8(skb, DCB_ATTR_NUMTCS, !!ret); |
33dbabc4 AD |
401 | } |
402 | ||
7be99413 TG |
403 | static int dcbnl_getpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
404 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 405 | { |
0eb3aa9b | 406 | if (!netdev->dcbnl_ops->getpfcstate) |
3d1f4869 | 407 | return -EOPNOTSUPP; |
0eb3aa9b | 408 | |
7be99413 TG |
409 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, |
410 | netdev->dcbnl_ops->getpfcstate(netdev)); | |
0eb3aa9b AD |
411 | } |
412 | ||
7be99413 TG |
413 | static int dcbnl_setpfcstate(struct net_device *netdev, struct nlmsghdr *nlh, |
414 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
0eb3aa9b | 415 | { |
0eb3aa9b AD |
416 | u8 value; |
417 | ||
3d1f4869 | 418 | if (!tb[DCB_ATTR_PFC_STATE]) |
7be99413 | 419 | return -EINVAL; |
0eb3aa9b | 420 | |
3d1f4869 TG |
421 | if (!netdev->dcbnl_ops->setpfcstate) |
422 | return -EOPNOTSUPP; | |
423 | ||
0eb3aa9b AD |
424 | value = nla_get_u8(tb[DCB_ATTR_PFC_STATE]); |
425 | ||
426 | netdev->dcbnl_ops->setpfcstate(netdev, value); | |
427 | ||
7be99413 | 428 | return nla_put_u8(skb, DCB_ATTR_PFC_STATE, 0); |
0eb3aa9b AD |
429 | } |
430 | ||
7be99413 TG |
431 | static int dcbnl_getapp(struct net_device *netdev, struct nlmsghdr *nlh, |
432 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 433 | { |
57949686 YZ |
434 | struct nlattr *app_nest; |
435 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
436 | u16 id; | |
437 | u8 up, idtype; | |
3d1f4869 | 438 | int ret; |
57949686 | 439 | |
3dce38a0 | 440 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 441 | return -EINVAL; |
57949686 | 442 | |
8cb08174 JB |
443 | ret = nla_parse_nested_deprecated(app_tb, DCB_APP_ATTR_MAX, |
444 | tb[DCB_ATTR_APP], dcbnl_app_nest, | |
445 | NULL); | |
57949686 | 446 | if (ret) |
3d1f4869 | 447 | return ret; |
57949686 | 448 | |
57949686 YZ |
449 | /* all must be non-null */ |
450 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
451 | (!app_tb[DCB_APP_ATTR_ID])) | |
3d1f4869 | 452 | return -EINVAL; |
57949686 YZ |
453 | |
454 | /* either by eth type or by socket number */ | |
455 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
456 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
457 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 458 | return -EINVAL; |
57949686 YZ |
459 | |
460 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
3dce38a0 JF |
461 | |
462 | if (netdev->dcbnl_ops->getapp) { | |
c2659479 AB |
463 | ret = netdev->dcbnl_ops->getapp(netdev, idtype, id); |
464 | if (ret < 0) | |
465 | return ret; | |
466 | else | |
467 | up = ret; | |
3dce38a0 JF |
468 | } else { |
469 | struct dcb_app app = { | |
470 | .selector = idtype, | |
471 | .protocol = id, | |
472 | }; | |
473 | up = dcb_getapp(netdev, &app); | |
474 | } | |
57949686 | 475 | |
ae0be8de | 476 | app_nest = nla_nest_start_noflag(skb, DCB_ATTR_APP); |
d3337de5 | 477 | if (!app_nest) |
3d1f4869 | 478 | return -EMSGSIZE; |
d3337de5 | 479 | |
7be99413 | 480 | ret = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, idtype); |
57949686 YZ |
481 | if (ret) |
482 | goto out_cancel; | |
483 | ||
7be99413 | 484 | ret = nla_put_u16(skb, DCB_APP_ATTR_ID, id); |
57949686 YZ |
485 | if (ret) |
486 | goto out_cancel; | |
487 | ||
7be99413 | 488 | ret = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, up); |
57949686 YZ |
489 | if (ret) |
490 | goto out_cancel; | |
491 | ||
7be99413 | 492 | nla_nest_end(skb, app_nest); |
57949686 | 493 | |
3d1f4869 | 494 | return 0; |
57949686 YZ |
495 | |
496 | out_cancel: | |
7be99413 | 497 | nla_nest_cancel(skb, app_nest); |
57949686 YZ |
498 | return ret; |
499 | } | |
500 | ||
7be99413 TG |
501 | static int dcbnl_setapp(struct net_device *netdev, struct nlmsghdr *nlh, |
502 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
57949686 | 503 | { |
3d1f4869 | 504 | int ret; |
57949686 YZ |
505 | u16 id; |
506 | u8 up, idtype; | |
507 | struct nlattr *app_tb[DCB_APP_ATTR_MAX + 1]; | |
508 | ||
9ab933ab | 509 | if (!tb[DCB_ATTR_APP]) |
3d1f4869 | 510 | return -EINVAL; |
57949686 | 511 | |
8cb08174 JB |
512 | ret = nla_parse_nested_deprecated(app_tb, DCB_APP_ATTR_MAX, |
513 | tb[DCB_ATTR_APP], dcbnl_app_nest, | |
514 | NULL); | |
57949686 | 515 | if (ret) |
3d1f4869 | 516 | return ret; |
57949686 | 517 | |
57949686 YZ |
518 | /* all must be non-null */ |
519 | if ((!app_tb[DCB_APP_ATTR_IDTYPE]) || | |
520 | (!app_tb[DCB_APP_ATTR_ID]) || | |
521 | (!app_tb[DCB_APP_ATTR_PRIORITY])) | |
3d1f4869 | 522 | return -EINVAL; |
57949686 YZ |
523 | |
524 | /* either by eth type or by socket number */ | |
525 | idtype = nla_get_u8(app_tb[DCB_APP_ATTR_IDTYPE]); | |
526 | if ((idtype != DCB_APP_IDTYPE_ETHTYPE) && | |
527 | (idtype != DCB_APP_IDTYPE_PORTNUM)) | |
3d1f4869 | 528 | return -EINVAL; |
57949686 YZ |
529 | |
530 | id = nla_get_u16(app_tb[DCB_APP_ATTR_ID]); | |
531 | up = nla_get_u8(app_tb[DCB_APP_ATTR_PRIORITY]); | |
532 | ||
9ab933ab | 533 | if (netdev->dcbnl_ops->setapp) { |
3d1f4869 | 534 | ret = netdev->dcbnl_ops->setapp(netdev, idtype, id, up); |
c2659479 AB |
535 | if (ret < 0) |
536 | return ret; | |
9ab933ab JF |
537 | } else { |
538 | struct dcb_app app; | |
539 | app.selector = idtype; | |
540 | app.protocol = id; | |
541 | app.priority = up; | |
3d1f4869 | 542 | ret = dcb_setapp(netdev, &app); |
9ab933ab JF |
543 | } |
544 | ||
7be99413 | 545 | ret = nla_put_u8(skb, DCB_ATTR_APP, ret); |
08157984 | 546 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SAPP, seq, 0); |
3d1f4869 | 547 | |
57949686 YZ |
548 | return ret; |
549 | } | |
550 | ||
7be99413 TG |
551 | static int __dcbnl_pg_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
552 | struct nlattr **tb, struct sk_buff *skb, int dir) | |
2f90b865 | 553 | { |
2f90b865 AD |
554 | struct nlattr *pg_nest, *param_nest, *data; |
555 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
556 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
557 | u8 prio, pgid, tc_pct, up_map; | |
3d1f4869 | 558 | int ret; |
2f90b865 AD |
559 | int getall = 0; |
560 | int i; | |
561 | ||
3d1f4869 TG |
562 | if (!tb[DCB_ATTR_PG_CFG]) |
563 | return -EINVAL; | |
564 | ||
565 | if (!netdev->dcbnl_ops->getpgtccfgtx || | |
2f90b865 AD |
566 | !netdev->dcbnl_ops->getpgtccfgrx || |
567 | !netdev->dcbnl_ops->getpgbwgcfgtx || | |
568 | !netdev->dcbnl_ops->getpgbwgcfgrx) | |
3d1f4869 | 569 | return -EOPNOTSUPP; |
2f90b865 | 570 | |
8cb08174 JB |
571 | ret = nla_parse_nested_deprecated(pg_tb, DCB_PG_ATTR_MAX, |
572 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest, | |
573 | NULL); | |
2f90b865 | 574 | if (ret) |
3d1f4869 | 575 | return ret; |
2f90b865 | 576 | |
ae0be8de | 577 | pg_nest = nla_nest_start_noflag(skb, DCB_ATTR_PG_CFG); |
2f90b865 | 578 | if (!pg_nest) |
3d1f4869 | 579 | return -EMSGSIZE; |
2f90b865 AD |
580 | |
581 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
582 | getall = 1; | |
583 | ||
584 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
585 | if (!getall && !pg_tb[i]) | |
586 | continue; | |
587 | ||
588 | if (pg_tb[DCB_PG_ATTR_TC_ALL]) | |
589 | data = pg_tb[DCB_PG_ATTR_TC_ALL]; | |
590 | else | |
591 | data = pg_tb[i]; | |
8cb08174 JB |
592 | ret = nla_parse_nested_deprecated(param_tb, |
593 | DCB_TC_ATTR_PARAM_MAX, data, | |
594 | dcbnl_tc_param_nest, NULL); | |
2f90b865 AD |
595 | if (ret) |
596 | goto err_pg; | |
597 | ||
ae0be8de | 598 | param_nest = nla_nest_start_noflag(skb, i); |
2f90b865 AD |
599 | if (!param_nest) |
600 | goto err_pg; | |
601 | ||
602 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
603 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
604 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
605 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
606 | ||
607 | if (dir) { | |
608 | /* Rx */ | |
609 | netdev->dcbnl_ops->getpgtccfgrx(netdev, | |
610 | i - DCB_PG_ATTR_TC_0, &prio, | |
611 | &pgid, &tc_pct, &up_map); | |
612 | } else { | |
613 | /* Tx */ | |
614 | netdev->dcbnl_ops->getpgtccfgtx(netdev, | |
615 | i - DCB_PG_ATTR_TC_0, &prio, | |
616 | &pgid, &tc_pct, &up_map); | |
617 | } | |
618 | ||
619 | if (param_tb[DCB_TC_ATTR_PARAM_PGID] || | |
620 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 621 | ret = nla_put_u8(skb, |
2f90b865 AD |
622 | DCB_TC_ATTR_PARAM_PGID, pgid); |
623 | if (ret) | |
624 | goto err_param; | |
625 | } | |
626 | if (param_tb[DCB_TC_ATTR_PARAM_UP_MAPPING] || | |
627 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 628 | ret = nla_put_u8(skb, |
2f90b865 AD |
629 | DCB_TC_ATTR_PARAM_UP_MAPPING, up_map); |
630 | if (ret) | |
631 | goto err_param; | |
632 | } | |
633 | if (param_tb[DCB_TC_ATTR_PARAM_STRICT_PRIO] || | |
634 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 635 | ret = nla_put_u8(skb, |
2f90b865 AD |
636 | DCB_TC_ATTR_PARAM_STRICT_PRIO, prio); |
637 | if (ret) | |
638 | goto err_param; | |
639 | } | |
640 | if (param_tb[DCB_TC_ATTR_PARAM_BW_PCT] || | |
641 | param_tb[DCB_TC_ATTR_PARAM_ALL]) { | |
7be99413 | 642 | ret = nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, |
2f90b865 AD |
643 | tc_pct); |
644 | if (ret) | |
645 | goto err_param; | |
646 | } | |
7be99413 | 647 | nla_nest_end(skb, param_nest); |
2f90b865 AD |
648 | } |
649 | ||
650 | if (pg_tb[DCB_PG_ATTR_BW_ID_ALL]) | |
651 | getall = 1; | |
652 | else | |
653 | getall = 0; | |
654 | ||
655 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
656 | if (!getall && !pg_tb[i]) | |
657 | continue; | |
658 | ||
659 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
660 | ||
661 | if (dir) { | |
662 | /* Rx */ | |
663 | netdev->dcbnl_ops->getpgbwgcfgrx(netdev, | |
664 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
665 | } else { | |
666 | /* Tx */ | |
667 | netdev->dcbnl_ops->getpgbwgcfgtx(netdev, | |
668 | i - DCB_PG_ATTR_BW_ID_0, &tc_pct); | |
669 | } | |
7be99413 | 670 | ret = nla_put_u8(skb, i, tc_pct); |
2f90b865 AD |
671 | if (ret) |
672 | goto err_pg; | |
673 | } | |
674 | ||
7be99413 | 675 | nla_nest_end(skb, pg_nest); |
2f90b865 AD |
676 | |
677 | return 0; | |
678 | ||
679 | err_param: | |
7be99413 | 680 | nla_nest_cancel(skb, param_nest); |
2f90b865 | 681 | err_pg: |
7be99413 | 682 | nla_nest_cancel(skb, pg_nest); |
3d1f4869 TG |
683 | |
684 | return -EMSGSIZE; | |
2f90b865 AD |
685 | } |
686 | ||
7be99413 TG |
687 | static int dcbnl_pgtx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
688 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 689 | { |
7be99413 | 690 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 0); |
2f90b865 AD |
691 | } |
692 | ||
7be99413 TG |
693 | static int dcbnl_pgrx_getcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
694 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 695 | { |
7be99413 | 696 | return __dcbnl_pg_getcfg(netdev, nlh, tb, skb, 1); |
2f90b865 AD |
697 | } |
698 | ||
7be99413 TG |
699 | static int dcbnl_setstate(struct net_device *netdev, struct nlmsghdr *nlh, |
700 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 701 | { |
2f90b865 AD |
702 | u8 value; |
703 | ||
3d1f4869 | 704 | if (!tb[DCB_ATTR_STATE]) |
7be99413 | 705 | return -EINVAL; |
2f90b865 | 706 | |
3d1f4869 TG |
707 | if (!netdev->dcbnl_ops->setstate) |
708 | return -EOPNOTSUPP; | |
709 | ||
2f90b865 AD |
710 | value = nla_get_u8(tb[DCB_ATTR_STATE]); |
711 | ||
7be99413 TG |
712 | return nla_put_u8(skb, DCB_ATTR_STATE, |
713 | netdev->dcbnl_ops->setstate(netdev, value)); | |
2f90b865 AD |
714 | } |
715 | ||
7be99413 TG |
716 | static int dcbnl_setpfccfg(struct net_device *netdev, struct nlmsghdr *nlh, |
717 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 AD |
718 | { |
719 | struct nlattr *data[DCB_PFC_UP_ATTR_MAX + 1]; | |
720 | int i; | |
3d1f4869 | 721 | int ret; |
2f90b865 AD |
722 | u8 value; |
723 | ||
3d1f4869 TG |
724 | if (!tb[DCB_ATTR_PFC_CFG]) |
725 | return -EINVAL; | |
726 | ||
727 | if (!netdev->dcbnl_ops->setpfccfg) | |
728 | return -EOPNOTSUPP; | |
2f90b865 | 729 | |
8cb08174 JB |
730 | ret = nla_parse_nested_deprecated(data, DCB_PFC_UP_ATTR_MAX, |
731 | tb[DCB_ATTR_PFC_CFG], | |
732 | dcbnl_pfc_up_nest, NULL); | |
2f90b865 | 733 | if (ret) |
3d1f4869 | 734 | return ret; |
2f90b865 AD |
735 | |
736 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
737 | if (data[i] == NULL) | |
738 | continue; | |
739 | value = nla_get_u8(data[i]); | |
740 | netdev->dcbnl_ops->setpfccfg(netdev, | |
741 | data[i]->nla_type - DCB_PFC_UP_ATTR_0, value); | |
742 | } | |
743 | ||
7be99413 | 744 | return nla_put_u8(skb, DCB_ATTR_PFC_CFG, 0); |
2f90b865 AD |
745 | } |
746 | ||
7be99413 TG |
747 | static int dcbnl_setall(struct net_device *netdev, struct nlmsghdr *nlh, |
748 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
2f90b865 | 749 | { |
3d1f4869 | 750 | int ret; |
2f90b865 | 751 | |
3d1f4869 TG |
752 | if (!tb[DCB_ATTR_SET_ALL]) |
753 | return -EINVAL; | |
754 | ||
755 | if (!netdev->dcbnl_ops->setall) | |
756 | return -EOPNOTSUPP; | |
2f90b865 | 757 | |
7be99413 TG |
758 | ret = nla_put_u8(skb, DCB_ATTR_SET_ALL, |
759 | netdev->dcbnl_ops->setall(netdev)); | |
08157984 | 760 | dcbnl_cee_notify(netdev, RTM_SETDCB, DCB_CMD_SET_ALL, seq, 0); |
2f90b865 AD |
761 | |
762 | return ret; | |
763 | } | |
764 | ||
7be99413 TG |
765 | static int __dcbnl_pg_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
766 | u32 seq, struct nlattr **tb, struct sk_buff *skb, | |
767 | int dir) | |
2f90b865 AD |
768 | { |
769 | struct nlattr *pg_tb[DCB_PG_ATTR_MAX + 1]; | |
770 | struct nlattr *param_tb[DCB_TC_ATTR_PARAM_MAX + 1]; | |
3d1f4869 | 771 | int ret; |
2f90b865 AD |
772 | int i; |
773 | u8 pgid; | |
774 | u8 up_map; | |
775 | u8 prio; | |
776 | u8 tc_pct; | |
777 | ||
3d1f4869 TG |
778 | if (!tb[DCB_ATTR_PG_CFG]) |
779 | return -EINVAL; | |
780 | ||
781 | if (!netdev->dcbnl_ops->setpgtccfgtx || | |
2f90b865 AD |
782 | !netdev->dcbnl_ops->setpgtccfgrx || |
783 | !netdev->dcbnl_ops->setpgbwgcfgtx || | |
784 | !netdev->dcbnl_ops->setpgbwgcfgrx) | |
3d1f4869 | 785 | return -EOPNOTSUPP; |
2f90b865 | 786 | |
8cb08174 JB |
787 | ret = nla_parse_nested_deprecated(pg_tb, DCB_PG_ATTR_MAX, |
788 | tb[DCB_ATTR_PG_CFG], dcbnl_pg_nest, | |
789 | NULL); | |
2f90b865 | 790 | if (ret) |
3d1f4869 | 791 | return ret; |
2f90b865 AD |
792 | |
793 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
794 | if (!pg_tb[i]) | |
795 | continue; | |
796 | ||
8cb08174 JB |
797 | ret = nla_parse_nested_deprecated(param_tb, |
798 | DCB_TC_ATTR_PARAM_MAX, | |
799 | pg_tb[i], | |
800 | dcbnl_tc_param_nest, NULL); | |
2f90b865 | 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 | 887 | |
8cb08174 JB |
888 | ret = nla_parse_nested_deprecated(bcn_tb, DCB_BCN_ATTR_MAX, |
889 | tb[DCB_ATTR_BCN], dcbnl_bcn_nest, | |
890 | NULL); | |
859ee3c4 | 891 | if (ret) |
3d1f4869 | 892 | return ret; |
859ee3c4 | 893 | |
ae0be8de | 894 | bcn_nest = nla_nest_start_noflag(skb, DCB_ATTR_BCN); |
859ee3c4 | 895 | if (!bcn_nest) |
3d1f4869 | 896 | return -EMSGSIZE; |
859ee3c4 AD |
897 | |
898 | if (bcn_tb[DCB_BCN_ATTR_ALL]) | |
899 | getall = true; | |
900 | ||
901 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
902 | if (!getall && !bcn_tb[i]) | |
903 | continue; | |
904 | ||
905 | netdev->dcbnl_ops->getbcnrp(netdev, i - DCB_BCN_ATTR_RP_0, | |
906 | &value_byte); | |
7be99413 | 907 | ret = nla_put_u8(skb, i, value_byte); |
859ee3c4 AD |
908 | if (ret) |
909 | goto err_bcn; | |
910 | } | |
911 | ||
f4314e81 | 912 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
913 | if (!getall && !bcn_tb[i]) |
914 | continue; | |
915 | ||
916 | netdev->dcbnl_ops->getbcncfg(netdev, i, | |
917 | &value_integer); | |
7be99413 | 918 | ret = nla_put_u32(skb, i, value_integer); |
859ee3c4 AD |
919 | if (ret) |
920 | goto err_bcn; | |
921 | } | |
922 | ||
7be99413 | 923 | nla_nest_end(skb, bcn_nest); |
859ee3c4 AD |
924 | |
925 | return 0; | |
926 | ||
927 | err_bcn: | |
7be99413 | 928 | nla_nest_cancel(skb, bcn_nest); |
859ee3c4 AD |
929 | return ret; |
930 | } | |
931 | ||
7be99413 TG |
932 | static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
933 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
859ee3c4 AD |
934 | { |
935 | struct nlattr *data[DCB_BCN_ATTR_MAX + 1]; | |
936 | int i; | |
3d1f4869 | 937 | int ret; |
859ee3c4 AD |
938 | u8 value_byte; |
939 | u32 value_int; | |
940 | ||
3d1f4869 TG |
941 | if (!tb[DCB_ATTR_BCN]) |
942 | return -EINVAL; | |
943 | ||
944 | if (!netdev->dcbnl_ops->setbcncfg || | |
f64f9e71 | 945 | !netdev->dcbnl_ops->setbcnrp) |
3d1f4869 | 946 | return -EOPNOTSUPP; |
859ee3c4 | 947 | |
8cb08174 JB |
948 | ret = nla_parse_nested_deprecated(data, DCB_BCN_ATTR_MAX, |
949 | tb[DCB_ATTR_BCN], dcbnl_pfc_up_nest, | |
950 | NULL); | |
859ee3c4 | 951 | if (ret) |
3d1f4869 | 952 | return ret; |
859ee3c4 AD |
953 | |
954 | for (i = DCB_BCN_ATTR_RP_0; i <= DCB_BCN_ATTR_RP_7; i++) { | |
955 | if (data[i] == NULL) | |
956 | continue; | |
957 | value_byte = nla_get_u8(data[i]); | |
958 | netdev->dcbnl_ops->setbcnrp(netdev, | |
959 | data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte); | |
960 | } | |
961 | ||
f4314e81 | 962 | for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { |
859ee3c4 AD |
963 | if (data[i] == NULL) |
964 | continue; | |
965 | value_int = nla_get_u32(data[i]); | |
966 | netdev->dcbnl_ops->setbcncfg(netdev, | |
967 | i, value_int); | |
968 | } | |
969 | ||
3d1f4869 | 970 | return nla_put_u8(skb, DCB_ATTR_BCN, 0); |
859ee3c4 AD |
971 | } |
972 | ||
dc6ed1df SR |
973 | static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb, |
974 | int app_nested_type, int app_info_type, | |
975 | int app_entry_type) | |
eed84713 SR |
976 | { |
977 | struct dcb_peer_app_info info; | |
978 | struct dcb_app *table = NULL; | |
979 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
980 | u16 app_count; | |
981 | int err; | |
982 | ||
983 | ||
984 | /** | |
985 | * retrieve the peer app configuration form the driver. If the driver | |
986 | * handlers fail exit without doing anything | |
987 | */ | |
988 | err = ops->peer_getappinfo(netdev, &info, &app_count); | |
989 | if (!err && app_count) { | |
6da2ec56 KC |
990 | table = kmalloc_array(app_count, sizeof(struct dcb_app), |
991 | GFP_KERNEL); | |
eed84713 SR |
992 | if (!table) |
993 | return -ENOMEM; | |
994 | ||
995 | err = ops->peer_getapptable(netdev, table); | |
996 | } | |
997 | ||
998 | if (!err) { | |
999 | u16 i; | |
1000 | struct nlattr *app; | |
1001 | ||
1002 | /** | |
1003 | * build the message, from here on the only possible failure | |
1004 | * is due to the skb size | |
1005 | */ | |
1006 | err = -EMSGSIZE; | |
1007 | ||
ae0be8de | 1008 | app = nla_nest_start_noflag(skb, app_nested_type); |
eed84713 SR |
1009 | if (!app) |
1010 | goto nla_put_failure; | |
1011 | ||
1eb4c977 DM |
1012 | if (app_info_type && |
1013 | nla_put(skb, app_info_type, sizeof(info), &info)) | |
1014 | goto nla_put_failure; | |
eed84713 | 1015 | |
1eb4c977 DM |
1016 | for (i = 0; i < app_count; i++) { |
1017 | if (nla_put(skb, app_entry_type, sizeof(struct dcb_app), | |
1018 | &table[i])) | |
1019 | goto nla_put_failure; | |
1020 | } | |
eed84713 SR |
1021 | nla_nest_end(skb, app); |
1022 | } | |
1023 | err = 0; | |
1024 | ||
1025 | nla_put_failure: | |
1026 | kfree(table); | |
1027 | return err; | |
1028 | } | |
3e29027a | 1029 | |
c9368247 | 1030 | /* Handle IEEE 802.1Qaz/802.1Qau/802.1Qbb GET commands. */ |
314b4778 | 1031 | static int dcbnl_ieee_fill(struct sk_buff *skb, struct net_device *netdev) |
3e29027a | 1032 | { |
9ab933ab JF |
1033 | struct nlattr *ieee, *app; |
1034 | struct dcb_app_type *itr; | |
3e29027a | 1035 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
c7797baf | 1036 | int dcbx; |
3d1f4869 | 1037 | int err; |
3e29027a | 1038 | |
1eb4c977 | 1039 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
3d1f4869 TG |
1040 | return -EMSGSIZE; |
1041 | ||
ae0be8de | 1042 | ieee = nla_nest_start_noflag(skb, DCB_ATTR_IEEE); |
3e29027a | 1043 | if (!ieee) |
3d1f4869 | 1044 | return -EMSGSIZE; |
3e29027a JF |
1045 | |
1046 | if (ops->ieee_getets) { | |
1047 | struct ieee_ets ets; | |
29cd8ae0 | 1048 | memset(&ets, 0, sizeof(ets)); |
3e29027a | 1049 | err = ops->ieee_getets(netdev, &ets); |
1eb4c977 DM |
1050 | if (!err && |
1051 | nla_put(skb, DCB_ATTR_IEEE_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1052 | return -EMSGSIZE; |
3e29027a JF |
1053 | } |
1054 | ||
08f10aff AV |
1055 | if (ops->ieee_getmaxrate) { |
1056 | struct ieee_maxrate maxrate; | |
29cd8ae0 | 1057 | memset(&maxrate, 0, sizeof(maxrate)); |
08f10aff AV |
1058 | err = ops->ieee_getmaxrate(netdev, &maxrate); |
1059 | if (!err) { | |
1060 | err = nla_put(skb, DCB_ATTR_IEEE_MAXRATE, | |
1061 | sizeof(maxrate), &maxrate); | |
1062 | if (err) | |
3d1f4869 | 1063 | return -EMSGSIZE; |
08f10aff AV |
1064 | } |
1065 | } | |
1066 | ||
c9368247 SM |
1067 | if (ops->ieee_getqcn) { |
1068 | struct ieee_qcn qcn; | |
1069 | ||
1070 | memset(&qcn, 0, sizeof(qcn)); | |
1071 | err = ops->ieee_getqcn(netdev, &qcn); | |
1072 | if (!err) { | |
1073 | err = nla_put(skb, DCB_ATTR_IEEE_QCN, | |
1074 | sizeof(qcn), &qcn); | |
1075 | if (err) | |
1076 | return -EMSGSIZE; | |
1077 | } | |
1078 | } | |
1079 | ||
1080 | if (ops->ieee_getqcnstats) { | |
1081 | struct ieee_qcn_stats qcn_stats; | |
1082 | ||
1083 | memset(&qcn_stats, 0, sizeof(qcn_stats)); | |
1084 | err = ops->ieee_getqcnstats(netdev, &qcn_stats); | |
1085 | if (!err) { | |
1086 | err = nla_put(skb, DCB_ATTR_IEEE_QCN_STATS, | |
1087 | sizeof(qcn_stats), &qcn_stats); | |
1088 | if (err) | |
1089 | return -EMSGSIZE; | |
1090 | } | |
1091 | } | |
1092 | ||
3e29027a JF |
1093 | if (ops->ieee_getpfc) { |
1094 | struct ieee_pfc pfc; | |
29cd8ae0 | 1095 | memset(&pfc, 0, sizeof(pfc)); |
3e29027a | 1096 | err = ops->ieee_getpfc(netdev, &pfc); |
1eb4c977 DM |
1097 | if (!err && |
1098 | nla_put(skb, DCB_ATTR_IEEE_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1099 | return -EMSGSIZE; |
3e29027a JF |
1100 | } |
1101 | ||
e549f6f9 HN |
1102 | if (ops->dcbnl_getbuffer) { |
1103 | struct dcbnl_buffer buffer; | |
1104 | ||
1105 | memset(&buffer, 0, sizeof(buffer)); | |
1106 | err = ops->dcbnl_getbuffer(netdev, &buffer); | |
1107 | if (!err && | |
1108 | nla_put(skb, DCB_ATTR_DCB_BUFFER, sizeof(buffer), &buffer)) | |
1109 | return -EMSGSIZE; | |
1110 | } | |
1111 | ||
ae0be8de | 1112 | app = nla_nest_start_noflag(skb, DCB_ATTR_IEEE_APP_TABLE); |
9ab933ab | 1113 | if (!app) |
3d1f4869 | 1114 | return -EMSGSIZE; |
9ab933ab | 1115 | |
52cff74e | 1116 | spin_lock_bh(&dcb_lock); |
9ab933ab | 1117 | list_for_each_entry(itr, &dcb_app_list, list) { |
e290ed81 | 1118 | if (itr->ifindex == netdev->ifindex) { |
70bfa2d2 DC |
1119 | err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app), |
1120 | &itr->app); | |
1121 | if (err) { | |
52cff74e | 1122 | spin_unlock_bh(&dcb_lock); |
3d1f4869 | 1123 | return -EMSGSIZE; |
70bfa2d2 DC |
1124 | } |
1125 | } | |
9ab933ab | 1126 | } |
c7797baf JF |
1127 | |
1128 | if (netdev->dcbnl_ops->getdcbx) | |
1129 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1130 | else | |
1131 | dcbx = -EOPNOTSUPP; | |
1132 | ||
52cff74e | 1133 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1134 | nla_nest_end(skb, app); |
1135 | ||
eed84713 SR |
1136 | /* get peer info if available */ |
1137 | if (ops->ieee_peer_getets) { | |
1138 | struct ieee_ets ets; | |
29cd8ae0 | 1139 | memset(&ets, 0, sizeof(ets)); |
eed84713 | 1140 | err = ops->ieee_peer_getets(netdev, &ets); |
1eb4c977 DM |
1141 | if (!err && |
1142 | nla_put(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets)) | |
3d1f4869 | 1143 | return -EMSGSIZE; |
eed84713 SR |
1144 | } |
1145 | ||
1146 | if (ops->ieee_peer_getpfc) { | |
1147 | struct ieee_pfc pfc; | |
29cd8ae0 | 1148 | memset(&pfc, 0, sizeof(pfc)); |
eed84713 | 1149 | err = ops->ieee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1150 | if (!err && |
1151 | nla_put(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc)) | |
3d1f4869 | 1152 | return -EMSGSIZE; |
eed84713 SR |
1153 | } |
1154 | ||
1155 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
dc6ed1df SR |
1156 | err = dcbnl_build_peer_app(netdev, skb, |
1157 | DCB_ATTR_IEEE_PEER_APP, | |
1158 | DCB_ATTR_IEEE_APP_UNSPEC, | |
1159 | DCB_ATTR_IEEE_APP); | |
eed84713 | 1160 | if (err) |
3d1f4869 | 1161 | return -EMSGSIZE; |
eed84713 SR |
1162 | } |
1163 | ||
3e29027a | 1164 | nla_nest_end(skb, ieee); |
c7797baf JF |
1165 | if (dcbx >= 0) { |
1166 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1167 | if (err) | |
3d1f4869 | 1168 | return -EMSGSIZE; |
c7797baf | 1169 | } |
3e29027a | 1170 | |
314b4778 | 1171 | return 0; |
3e29027a JF |
1172 | } |
1173 | ||
5b7f7626 SR |
1174 | static int dcbnl_cee_pg_fill(struct sk_buff *skb, struct net_device *dev, |
1175 | int dir) | |
1176 | { | |
1177 | u8 pgid, up_map, prio, tc_pct; | |
1178 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; | |
1179 | int i = dir ? DCB_ATTR_CEE_TX_PG : DCB_ATTR_CEE_RX_PG; | |
ae0be8de | 1180 | struct nlattr *pg = nla_nest_start_noflag(skb, i); |
5b7f7626 SR |
1181 | |
1182 | if (!pg) | |
3d1f4869 | 1183 | return -EMSGSIZE; |
5b7f7626 SR |
1184 | |
1185 | for (i = DCB_PG_ATTR_TC_0; i <= DCB_PG_ATTR_TC_7; i++) { | |
ae0be8de | 1186 | struct nlattr *tc_nest = nla_nest_start_noflag(skb, i); |
5b7f7626 SR |
1187 | |
1188 | if (!tc_nest) | |
3d1f4869 | 1189 | return -EMSGSIZE; |
5b7f7626 SR |
1190 | |
1191 | pgid = DCB_ATTR_VALUE_UNDEFINED; | |
1192 | prio = DCB_ATTR_VALUE_UNDEFINED; | |
1193 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1194 | up_map = DCB_ATTR_VALUE_UNDEFINED; | |
1195 | ||
1196 | if (!dir) | |
1197 | ops->getpgtccfgrx(dev, i - DCB_PG_ATTR_TC_0, | |
1198 | &prio, &pgid, &tc_pct, &up_map); | |
1199 | else | |
1200 | ops->getpgtccfgtx(dev, i - DCB_PG_ATTR_TC_0, | |
1201 | &prio, &pgid, &tc_pct, &up_map); | |
1202 | ||
1eb4c977 DM |
1203 | if (nla_put_u8(skb, DCB_TC_ATTR_PARAM_PGID, pgid) || |
1204 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_UP_MAPPING, up_map) || | |
1205 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_STRICT_PRIO, prio) || | |
1206 | nla_put_u8(skb, DCB_TC_ATTR_PARAM_BW_PCT, tc_pct)) | |
3d1f4869 | 1207 | return -EMSGSIZE; |
5b7f7626 SR |
1208 | nla_nest_end(skb, tc_nest); |
1209 | } | |
1210 | ||
1211 | for (i = DCB_PG_ATTR_BW_ID_0; i <= DCB_PG_ATTR_BW_ID_7; i++) { | |
1212 | tc_pct = DCB_ATTR_VALUE_UNDEFINED; | |
1213 | ||
1214 | if (!dir) | |
1215 | ops->getpgbwgcfgrx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1216 | &tc_pct); | |
1217 | else | |
1218 | ops->getpgbwgcfgtx(dev, i - DCB_PG_ATTR_BW_ID_0, | |
1219 | &tc_pct); | |
1eb4c977 | 1220 | if (nla_put_u8(skb, i, tc_pct)) |
3d1f4869 | 1221 | return -EMSGSIZE; |
5b7f7626 SR |
1222 | } |
1223 | nla_nest_end(skb, pg); | |
1224 | return 0; | |
5b7f7626 SR |
1225 | } |
1226 | ||
1227 | static int dcbnl_cee_fill(struct sk_buff *skb, struct net_device *netdev) | |
1228 | { | |
1229 | struct nlattr *cee, *app; | |
1230 | struct dcb_app_type *itr; | |
1231 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1232 | int dcbx, i, err = -EMSGSIZE; | |
1233 | u8 value; | |
1234 | ||
1eb4c977 DM |
1235 | if (nla_put_string(skb, DCB_ATTR_IFNAME, netdev->name)) |
1236 | goto nla_put_failure; | |
ae0be8de | 1237 | cee = nla_nest_start_noflag(skb, DCB_ATTR_CEE); |
5b7f7626 SR |
1238 | if (!cee) |
1239 | goto nla_put_failure; | |
1240 | ||
1241 | /* local pg */ | |
1242 | if (ops->getpgtccfgtx && ops->getpgbwgcfgtx) { | |
1243 | err = dcbnl_cee_pg_fill(skb, netdev, 1); | |
1244 | if (err) | |
1245 | goto nla_put_failure; | |
1246 | } | |
1247 | ||
1248 | if (ops->getpgtccfgrx && ops->getpgbwgcfgrx) { | |
1249 | err = dcbnl_cee_pg_fill(skb, netdev, 0); | |
1250 | if (err) | |
1251 | goto nla_put_failure; | |
1252 | } | |
1253 | ||
1254 | /* local pfc */ | |
1255 | if (ops->getpfccfg) { | |
ae0be8de MK |
1256 | struct nlattr *pfc_nest = nla_nest_start_noflag(skb, |
1257 | DCB_ATTR_CEE_PFC); | |
5b7f7626 SR |
1258 | |
1259 | if (!pfc_nest) | |
1260 | goto nla_put_failure; | |
1261 | ||
1262 | for (i = DCB_PFC_UP_ATTR_0; i <= DCB_PFC_UP_ATTR_7; i++) { | |
1263 | ops->getpfccfg(netdev, i - DCB_PFC_UP_ATTR_0, &value); | |
1eb4c977 DM |
1264 | if (nla_put_u8(skb, i, value)) |
1265 | goto nla_put_failure; | |
5b7f7626 SR |
1266 | } |
1267 | nla_nest_end(skb, pfc_nest); | |
1268 | } | |
1269 | ||
1270 | /* local app */ | |
52cff74e | 1271 | spin_lock_bh(&dcb_lock); |
ae0be8de | 1272 | app = nla_nest_start_noflag(skb, DCB_ATTR_CEE_APP_TABLE); |
5b7f7626 | 1273 | if (!app) |
40f5d72a | 1274 | goto dcb_unlock; |
5b7f7626 SR |
1275 | |
1276 | list_for_each_entry(itr, &dcb_app_list, list) { | |
e290ed81 | 1277 | if (itr->ifindex == netdev->ifindex) { |
ae0be8de MK |
1278 | struct nlattr *app_nest = nla_nest_start_noflag(skb, |
1279 | DCB_ATTR_APP); | |
5b7f7626 SR |
1280 | if (!app_nest) |
1281 | goto dcb_unlock; | |
1282 | ||
1283 | err = nla_put_u8(skb, DCB_APP_ATTR_IDTYPE, | |
1284 | itr->app.selector); | |
1285 | if (err) | |
1286 | goto dcb_unlock; | |
1287 | ||
1288 | err = nla_put_u16(skb, DCB_APP_ATTR_ID, | |
1289 | itr->app.protocol); | |
1290 | if (err) | |
1291 | goto dcb_unlock; | |
1292 | ||
1293 | err = nla_put_u8(skb, DCB_APP_ATTR_PRIORITY, | |
1294 | itr->app.priority); | |
1295 | if (err) | |
1296 | goto dcb_unlock; | |
1297 | ||
1298 | nla_nest_end(skb, app_nest); | |
1299 | } | |
1300 | } | |
1301 | nla_nest_end(skb, app); | |
1302 | ||
1303 | if (netdev->dcbnl_ops->getdcbx) | |
1304 | dcbx = netdev->dcbnl_ops->getdcbx(netdev); | |
1305 | else | |
1306 | dcbx = -EOPNOTSUPP; | |
1307 | ||
52cff74e | 1308 | spin_unlock_bh(&dcb_lock); |
5b7f7626 SR |
1309 | |
1310 | /* features flags */ | |
1311 | if (ops->getfeatcfg) { | |
ae0be8de MK |
1312 | struct nlattr *feat = nla_nest_start_noflag(skb, |
1313 | DCB_ATTR_CEE_FEAT); | |
5b7f7626 SR |
1314 | if (!feat) |
1315 | goto nla_put_failure; | |
1316 | ||
1317 | for (i = DCB_FEATCFG_ATTR_ALL + 1; i <= DCB_FEATCFG_ATTR_MAX; | |
1318 | i++) | |
1eb4c977 DM |
1319 | if (!ops->getfeatcfg(netdev, i, &value) && |
1320 | nla_put_u8(skb, i, value)) | |
1321 | goto nla_put_failure; | |
5b7f7626 SR |
1322 | |
1323 | nla_nest_end(skb, feat); | |
1324 | } | |
1325 | ||
1326 | /* peer info if available */ | |
1327 | if (ops->cee_peer_getpg) { | |
1328 | struct cee_pg pg; | |
29cd8ae0 | 1329 | memset(&pg, 0, sizeof(pg)); |
5b7f7626 | 1330 | err = ops->cee_peer_getpg(netdev, &pg); |
1eb4c977 DM |
1331 | if (!err && |
1332 | nla_put(skb, DCB_ATTR_CEE_PEER_PG, sizeof(pg), &pg)) | |
1333 | goto nla_put_failure; | |
5b7f7626 SR |
1334 | } |
1335 | ||
1336 | if (ops->cee_peer_getpfc) { | |
1337 | struct cee_pfc pfc; | |
29cd8ae0 | 1338 | memset(&pfc, 0, sizeof(pfc)); |
5b7f7626 | 1339 | err = ops->cee_peer_getpfc(netdev, &pfc); |
1eb4c977 DM |
1340 | if (!err && |
1341 | nla_put(skb, DCB_ATTR_CEE_PEER_PFC, sizeof(pfc), &pfc)) | |
1342 | goto nla_put_failure; | |
5b7f7626 SR |
1343 | } |
1344 | ||
1345 | if (ops->peer_getappinfo && ops->peer_getapptable) { | |
1346 | err = dcbnl_build_peer_app(netdev, skb, | |
1347 | DCB_ATTR_CEE_PEER_APP_TABLE, | |
1348 | DCB_ATTR_CEE_PEER_APP_INFO, | |
1349 | DCB_ATTR_CEE_PEER_APP); | |
1350 | if (err) | |
1351 | goto nla_put_failure; | |
1352 | } | |
1353 | nla_nest_end(skb, cee); | |
1354 | ||
1355 | /* DCBX state */ | |
1356 | if (dcbx >= 0) { | |
1357 | err = nla_put_u8(skb, DCB_ATTR_DCBX, dcbx); | |
1358 | if (err) | |
1359 | goto nla_put_failure; | |
1360 | } | |
1361 | return 0; | |
1362 | ||
1363 | dcb_unlock: | |
52cff74e | 1364 | spin_unlock_bh(&dcb_lock); |
5b7f7626 | 1365 | nla_put_failure: |
c66ebf2d | 1366 | err = -EMSGSIZE; |
5b7f7626 SR |
1367 | return err; |
1368 | } | |
1369 | ||
1370 | static int dcbnl_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1371 | u32 seq, u32 portid, int dcbx_ver) |
314b4778 JF |
1372 | { |
1373 | struct net *net = dev_net(dev); | |
1374 | struct sk_buff *skb; | |
1375 | struct nlmsghdr *nlh; | |
314b4778 JF |
1376 | const struct dcbnl_rtnl_ops *ops = dev->dcbnl_ops; |
1377 | int err; | |
1378 | ||
1379 | if (!ops) | |
1380 | return -EOPNOTSUPP; | |
1381 | ||
15e47304 | 1382 | skb = dcbnl_newmsg(event, cmd, portid, seq, 0, &nlh); |
314b4778 | 1383 | if (!skb) |
b923cda9 | 1384 | return -ENOMEM; |
314b4778 | 1385 | |
5b7f7626 SR |
1386 | if (dcbx_ver == DCB_CAP_DCBX_VER_IEEE) |
1387 | err = dcbnl_ieee_fill(skb, dev); | |
1388 | else | |
1389 | err = dcbnl_cee_fill(skb, dev); | |
1390 | ||
314b4778 JF |
1391 | if (err < 0) { |
1392 | /* Report error to broadcast listeners */ | |
ab6d4707 | 1393 | nlmsg_free(skb); |
314b4778 JF |
1394 | rtnl_set_sk_err(net, RTNLGRP_DCB, err); |
1395 | } else { | |
1396 | /* End nlmsg and notify broadcast listeners */ | |
1397 | nlmsg_end(skb, nlh); | |
1398 | rtnl_notify(skb, net, 0, RTNLGRP_DCB, NULL, GFP_KERNEL); | |
1399 | } | |
1400 | ||
1401 | return err; | |
1402 | } | |
5b7f7626 SR |
1403 | |
1404 | int dcbnl_ieee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1405 | u32 seq, u32 portid) |
5b7f7626 | 1406 | { |
15e47304 | 1407 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_IEEE); |
5b7f7626 SR |
1408 | } |
1409 | EXPORT_SYMBOL(dcbnl_ieee_notify); | |
1410 | ||
1411 | int dcbnl_cee_notify(struct net_device *dev, int event, int cmd, | |
15e47304 | 1412 | u32 seq, u32 portid) |
5b7f7626 | 1413 | { |
15e47304 | 1414 | return dcbnl_notify(dev, event, cmd, seq, portid, DCB_CAP_DCBX_VER_CEE); |
5b7f7626 SR |
1415 | } |
1416 | EXPORT_SYMBOL(dcbnl_cee_notify); | |
314b4778 | 1417 | |
c9368247 SM |
1418 | /* Handle IEEE 802.1Qaz/802.1Qau/802.1Qbb SET commands. |
1419 | * If any requested operation can not be completed | |
1420 | * the entire msg is aborted and error value is returned. | |
314b4778 JF |
1421 | * No attempt is made to reconcile the case where only part of the |
1422 | * cmd can be completed. | |
1423 | */ | |
7be99413 TG |
1424 | static int dcbnl_ieee_set(struct net_device *netdev, struct nlmsghdr *nlh, |
1425 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 JF |
1426 | { |
1427 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1428 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
297e77e5 | 1429 | int prio; |
3d1f4869 | 1430 | int err; |
314b4778 JF |
1431 | |
1432 | if (!ops) | |
3d1f4869 | 1433 | return -EOPNOTSUPP; |
314b4778 | 1434 | |
4003b658 JF |
1435 | if (!tb[DCB_ATTR_IEEE]) |
1436 | return -EINVAL; | |
1437 | ||
8cb08174 JB |
1438 | err = nla_parse_nested_deprecated(ieee, DCB_ATTR_IEEE_MAX, |
1439 | tb[DCB_ATTR_IEEE], | |
1440 | dcbnl_ieee_policy, NULL); | |
314b4778 JF |
1441 | if (err) |
1442 | return err; | |
1443 | ||
1444 | if (ieee[DCB_ATTR_IEEE_ETS] && ops->ieee_setets) { | |
1445 | struct ieee_ets *ets = nla_data(ieee[DCB_ATTR_IEEE_ETS]); | |
1446 | err = ops->ieee_setets(netdev, ets); | |
1447 | if (err) | |
1448 | goto err; | |
1449 | } | |
1450 | ||
08f10aff AV |
1451 | if (ieee[DCB_ATTR_IEEE_MAXRATE] && ops->ieee_setmaxrate) { |
1452 | struct ieee_maxrate *maxrate = | |
1453 | nla_data(ieee[DCB_ATTR_IEEE_MAXRATE]); | |
1454 | err = ops->ieee_setmaxrate(netdev, maxrate); | |
1455 | if (err) | |
1456 | goto err; | |
1457 | } | |
1458 | ||
c9368247 SM |
1459 | if (ieee[DCB_ATTR_IEEE_QCN] && ops->ieee_setqcn) { |
1460 | struct ieee_qcn *qcn = | |
1461 | nla_data(ieee[DCB_ATTR_IEEE_QCN]); | |
1462 | ||
1463 | err = ops->ieee_setqcn(netdev, qcn); | |
1464 | if (err) | |
1465 | goto err; | |
1466 | } | |
1467 | ||
314b4778 JF |
1468 | if (ieee[DCB_ATTR_IEEE_PFC] && ops->ieee_setpfc) { |
1469 | struct ieee_pfc *pfc = nla_data(ieee[DCB_ATTR_IEEE_PFC]); | |
1470 | err = ops->ieee_setpfc(netdev, pfc); | |
1471 | if (err) | |
1472 | goto err; | |
1473 | } | |
1474 | ||
e549f6f9 HN |
1475 | if (ieee[DCB_ATTR_DCB_BUFFER] && ops->dcbnl_setbuffer) { |
1476 | struct dcbnl_buffer *buffer = | |
1477 | nla_data(ieee[DCB_ATTR_DCB_BUFFER]); | |
1478 | ||
297e77e5 PM |
1479 | for (prio = 0; prio < ARRAY_SIZE(buffer->prio2buffer); prio++) { |
1480 | if (buffer->prio2buffer[prio] >= DCBX_MAX_BUFFERS) { | |
1481 | err = -EINVAL; | |
1482 | goto err; | |
1483 | } | |
1484 | } | |
1485 | ||
e549f6f9 HN |
1486 | err = ops->dcbnl_setbuffer(netdev, buffer); |
1487 | if (err) | |
1488 | goto err; | |
1489 | } | |
1490 | ||
314b4778 JF |
1491 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { |
1492 | struct nlattr *attr; | |
1493 | int rem; | |
1494 | ||
1495 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1496 | struct dcb_app *app_data; | |
332b4fc8 | 1497 | |
314b4778 JF |
1498 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) |
1499 | continue; | |
332b4fc8 | 1500 | |
1501 | if (nla_len(attr) < sizeof(struct dcb_app)) { | |
1502 | err = -ERANGE; | |
1503 | goto err; | |
1504 | } | |
1505 | ||
314b4778 JF |
1506 | app_data = nla_data(attr); |
1507 | if (ops->ieee_setapp) | |
1508 | err = ops->ieee_setapp(netdev, app_data); | |
1509 | else | |
b6db2174 | 1510 | err = dcb_ieee_setapp(netdev, app_data); |
314b4778 JF |
1511 | if (err) |
1512 | goto err; | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | err: | |
7be99413 | 1517 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1518 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_SET, seq, 0); |
314b4778 JF |
1519 | return err; |
1520 | } | |
1521 | ||
7be99413 TG |
1522 | static int dcbnl_ieee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1523 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
314b4778 | 1524 | { |
314b4778 | 1525 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
314b4778 JF |
1526 | |
1527 | if (!ops) | |
1528 | return -EOPNOTSUPP; | |
1529 | ||
7be99413 | 1530 | return dcbnl_ieee_fill(skb, netdev); |
314b4778 | 1531 | } |
f9ae7e4b | 1532 | |
7be99413 TG |
1533 | static int dcbnl_ieee_del(struct net_device *netdev, struct nlmsghdr *nlh, |
1534 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
f9ae7e4b JF |
1535 | { |
1536 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; | |
1537 | struct nlattr *ieee[DCB_ATTR_IEEE_MAX + 1]; | |
3d1f4869 | 1538 | int err; |
f9ae7e4b JF |
1539 | |
1540 | if (!ops) | |
1541 | return -EOPNOTSUPP; | |
1542 | ||
1543 | if (!tb[DCB_ATTR_IEEE]) | |
1544 | return -EINVAL; | |
1545 | ||
8cb08174 JB |
1546 | err = nla_parse_nested_deprecated(ieee, DCB_ATTR_IEEE_MAX, |
1547 | tb[DCB_ATTR_IEEE], | |
1548 | dcbnl_ieee_policy, NULL); | |
f9ae7e4b JF |
1549 | if (err) |
1550 | return err; | |
1551 | ||
1552 | if (ieee[DCB_ATTR_IEEE_APP_TABLE]) { | |
1553 | struct nlattr *attr; | |
1554 | int rem; | |
1555 | ||
1556 | nla_for_each_nested(attr, ieee[DCB_ATTR_IEEE_APP_TABLE], rem) { | |
1557 | struct dcb_app *app_data; | |
1558 | ||
1559 | if (nla_type(attr) != DCB_ATTR_IEEE_APP) | |
1560 | continue; | |
1561 | app_data = nla_data(attr); | |
1562 | if (ops->ieee_delapp) | |
1563 | err = ops->ieee_delapp(netdev, app_data); | |
1564 | else | |
1565 | err = dcb_ieee_delapp(netdev, app_data); | |
1566 | if (err) | |
1567 | goto err; | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | err: | |
7be99413 | 1572 | err = nla_put_u8(skb, DCB_ATTR_IEEE, err); |
5b7f7626 | 1573 | dcbnl_ieee_notify(netdev, RTM_SETDCB, DCB_CMD_IEEE_DEL, seq, 0); |
f9ae7e4b JF |
1574 | return err; |
1575 | } | |
1576 | ||
1577 | ||
6241b625 | 1578 | /* DCBX configuration */ |
7be99413 TG |
1579 | static int dcbnl_getdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1580 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1581 | { |
6241b625 | 1582 | if (!netdev->dcbnl_ops->getdcbx) |
7f891cf1 | 1583 | return -EOPNOTSUPP; |
6241b625 | 1584 | |
7be99413 TG |
1585 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1586 | netdev->dcbnl_ops->getdcbx(netdev)); | |
6241b625 SR |
1587 | } |
1588 | ||
7be99413 TG |
1589 | static int dcbnl_setdcbx(struct net_device *netdev, struct nlmsghdr *nlh, |
1590 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
6241b625 | 1591 | { |
6241b625 SR |
1592 | u8 value; |
1593 | ||
7f891cf1 SR |
1594 | if (!netdev->dcbnl_ops->setdcbx) |
1595 | return -EOPNOTSUPP; | |
1596 | ||
1597 | if (!tb[DCB_ATTR_DCBX]) | |
1598 | return -EINVAL; | |
6241b625 SR |
1599 | |
1600 | value = nla_get_u8(tb[DCB_ATTR_DCBX]); | |
1601 | ||
7be99413 TG |
1602 | return nla_put_u8(skb, DCB_ATTR_DCBX, |
1603 | netdev->dcbnl_ops->setdcbx(netdev, value)); | |
6241b625 SR |
1604 | } |
1605 | ||
7be99413 TG |
1606 | static int dcbnl_getfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1607 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e | 1608 | { |
ea45fe4e SR |
1609 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1], *nest; |
1610 | u8 value; | |
7f891cf1 | 1611 | int ret, i; |
ea45fe4e SR |
1612 | int getall = 0; |
1613 | ||
7f891cf1 SR |
1614 | if (!netdev->dcbnl_ops->getfeatcfg) |
1615 | return -EOPNOTSUPP; | |
1616 | ||
1617 | if (!tb[DCB_ATTR_FEATCFG]) | |
1618 | return -EINVAL; | |
ea45fe4e | 1619 | |
8cb08174 JB |
1620 | ret = nla_parse_nested_deprecated(data, DCB_FEATCFG_ATTR_MAX, |
1621 | tb[DCB_ATTR_FEATCFG], | |
1622 | dcbnl_featcfg_nest, NULL); | |
7f891cf1 | 1623 | if (ret) |
7be99413 | 1624 | return ret; |
ea45fe4e | 1625 | |
ae0be8de | 1626 | nest = nla_nest_start_noflag(skb, DCB_ATTR_FEATCFG); |
7be99413 TG |
1627 | if (!nest) |
1628 | return -EMSGSIZE; | |
ea45fe4e SR |
1629 | |
1630 | if (data[DCB_FEATCFG_ATTR_ALL]) | |
1631 | getall = 1; | |
1632 | ||
1633 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1634 | if (!getall && !data[i]) | |
1635 | continue; | |
1636 | ||
1637 | ret = netdev->dcbnl_ops->getfeatcfg(netdev, i, &value); | |
7f891cf1 | 1638 | if (!ret) |
7be99413 | 1639 | ret = nla_put_u8(skb, i, value); |
ea45fe4e | 1640 | |
7f891cf1 | 1641 | if (ret) { |
7be99413 | 1642 | nla_nest_cancel(skb, nest); |
7f891cf1 SR |
1643 | goto nla_put_failure; |
1644 | } | |
ea45fe4e | 1645 | } |
7be99413 | 1646 | nla_nest_end(skb, nest); |
ea45fe4e | 1647 | |
7f891cf1 | 1648 | nla_put_failure: |
ea45fe4e SR |
1649 | return ret; |
1650 | } | |
1651 | ||
7be99413 TG |
1652 | static int dcbnl_setfeatcfg(struct net_device *netdev, struct nlmsghdr *nlh, |
1653 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
ea45fe4e SR |
1654 | { |
1655 | struct nlattr *data[DCB_FEATCFG_ATTR_MAX + 1]; | |
7f891cf1 | 1656 | int ret, i; |
ea45fe4e | 1657 | u8 value; |
ea45fe4e | 1658 | |
7f891cf1 SR |
1659 | if (!netdev->dcbnl_ops->setfeatcfg) |
1660 | return -ENOTSUPP; | |
1661 | ||
1662 | if (!tb[DCB_ATTR_FEATCFG]) | |
1663 | return -EINVAL; | |
ea45fe4e | 1664 | |
8cb08174 JB |
1665 | ret = nla_parse_nested_deprecated(data, DCB_FEATCFG_ATTR_MAX, |
1666 | tb[DCB_ATTR_FEATCFG], | |
1667 | dcbnl_featcfg_nest, NULL); | |
ea45fe4e | 1668 | |
7f891cf1 | 1669 | if (ret) |
ea45fe4e | 1670 | goto err; |
ea45fe4e SR |
1671 | |
1672 | for (i = DCB_FEATCFG_ATTR_ALL+1; i <= DCB_FEATCFG_ATTR_MAX; i++) { | |
1673 | if (data[i] == NULL) | |
1674 | continue; | |
1675 | ||
1676 | value = nla_get_u8(data[i]); | |
1677 | ||
1678 | ret = netdev->dcbnl_ops->setfeatcfg(netdev, i, value); | |
1679 | ||
1680 | if (ret) | |
7f891cf1 | 1681 | goto err; |
ea45fe4e | 1682 | } |
ea45fe4e | 1683 | err: |
7be99413 | 1684 | ret = nla_put_u8(skb, DCB_ATTR_FEATCFG, ret); |
7f891cf1 | 1685 | |
ea45fe4e SR |
1686 | return ret; |
1687 | } | |
1688 | ||
dc6ed1df | 1689 | /* Handle CEE DCBX GET commands. */ |
7be99413 TG |
1690 | static int dcbnl_cee_get(struct net_device *netdev, struct nlmsghdr *nlh, |
1691 | u32 seq, struct nlattr **tb, struct sk_buff *skb) | |
dc6ed1df | 1692 | { |
dc6ed1df | 1693 | const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops; |
dc6ed1df SR |
1694 | |
1695 | if (!ops) | |
1696 | return -EOPNOTSUPP; | |
1697 | ||
7be99413 | 1698 | return dcbnl_cee_fill(skb, netdev); |
dc6ed1df SR |
1699 | } |
1700 | ||
33a03aad TG |
1701 | struct reply_func { |
1702 | /* reply netlink message type */ | |
1703 | int type; | |
1704 | ||
1705 | /* function to fill message contents */ | |
1706 | int (*cb)(struct net_device *, struct nlmsghdr *, u32, | |
1707 | struct nlattr **, struct sk_buff *); | |
1708 | }; | |
1709 | ||
1710 | static const struct reply_func reply_funcs[DCB_CMD_MAX+1] = { | |
7be99413 TG |
1711 | [DCB_CMD_GSTATE] = { RTM_GETDCB, dcbnl_getstate }, |
1712 | [DCB_CMD_SSTATE] = { RTM_SETDCB, dcbnl_setstate }, | |
1713 | [DCB_CMD_PFC_GCFG] = { RTM_GETDCB, dcbnl_getpfccfg }, | |
1714 | [DCB_CMD_PFC_SCFG] = { RTM_SETDCB, dcbnl_setpfccfg }, | |
1715 | [DCB_CMD_GPERM_HWADDR] = { RTM_GETDCB, dcbnl_getperm_hwaddr }, | |
1716 | [DCB_CMD_GCAP] = { RTM_GETDCB, dcbnl_getcap }, | |
1717 | [DCB_CMD_GNUMTCS] = { RTM_GETDCB, dcbnl_getnumtcs }, | |
1718 | [DCB_CMD_SNUMTCS] = { RTM_SETDCB, dcbnl_setnumtcs }, | |
1719 | [DCB_CMD_PFC_GSTATE] = { RTM_GETDCB, dcbnl_getpfcstate }, | |
1720 | [DCB_CMD_PFC_SSTATE] = { RTM_SETDCB, dcbnl_setpfcstate }, | |
1721 | [DCB_CMD_GAPP] = { RTM_GETDCB, dcbnl_getapp }, | |
1722 | [DCB_CMD_SAPP] = { RTM_SETDCB, dcbnl_setapp }, | |
1723 | [DCB_CMD_PGTX_GCFG] = { RTM_GETDCB, dcbnl_pgtx_getcfg }, | |
1724 | [DCB_CMD_PGTX_SCFG] = { RTM_SETDCB, dcbnl_pgtx_setcfg }, | |
1725 | [DCB_CMD_PGRX_GCFG] = { RTM_GETDCB, dcbnl_pgrx_getcfg }, | |
1726 | [DCB_CMD_PGRX_SCFG] = { RTM_SETDCB, dcbnl_pgrx_setcfg }, | |
1727 | [DCB_CMD_SET_ALL] = { RTM_SETDCB, dcbnl_setall }, | |
1728 | [DCB_CMD_BCN_GCFG] = { RTM_GETDCB, dcbnl_bcn_getcfg }, | |
1729 | [DCB_CMD_BCN_SCFG] = { RTM_SETDCB, dcbnl_bcn_setcfg }, | |
1730 | [DCB_CMD_IEEE_GET] = { RTM_GETDCB, dcbnl_ieee_get }, | |
1731 | [DCB_CMD_IEEE_SET] = { RTM_SETDCB, dcbnl_ieee_set }, | |
1732 | [DCB_CMD_IEEE_DEL] = { RTM_SETDCB, dcbnl_ieee_del }, | |
1733 | [DCB_CMD_GDCBX] = { RTM_GETDCB, dcbnl_getdcbx }, | |
1734 | [DCB_CMD_SDCBX] = { RTM_SETDCB, dcbnl_setdcbx }, | |
1735 | [DCB_CMD_GFEATCFG] = { RTM_GETDCB, dcbnl_getfeatcfg }, | |
1736 | [DCB_CMD_SFEATCFG] = { RTM_SETDCB, dcbnl_setfeatcfg }, | |
1737 | [DCB_CMD_CEE_GET] = { RTM_GETDCB, dcbnl_cee_get }, | |
33a03aad TG |
1738 | }; |
1739 | ||
c21ef3e3 DA |
1740 | static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, |
1741 | struct netlink_ext_ack *extack) | |
2f90b865 AD |
1742 | { |
1743 | struct net *net = sock_net(skb->sk); | |
1744 | struct net_device *netdev; | |
7a282bc3 | 1745 | struct dcbmsg *dcb = nlmsg_data(nlh); |
2f90b865 | 1746 | struct nlattr *tb[DCB_ATTR_MAX + 1]; |
0cc55e69 | 1747 | u32 portid = NETLINK_CB(skb).portid; |
2f90b865 | 1748 | int ret = -EINVAL; |
33a03aad | 1749 | struct sk_buff *reply_skb; |
39912f9c | 1750 | struct nlmsghdr *reply_nlh = NULL; |
33a03aad | 1751 | const struct reply_func *fn; |
2f90b865 | 1752 | |
90f62cf3 | 1753 | if ((nlh->nlmsg_type == RTM_SETDCB) && !netlink_capable(skb, CAP_NET_ADMIN)) |
dfc47ef8 EB |
1754 | return -EPERM; |
1755 | ||
8cb08174 JB |
1756 | ret = nlmsg_parse_deprecated(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX, |
1757 | dcbnl_rtnl_policy, extack); | |
2f90b865 AD |
1758 | if (ret < 0) |
1759 | return ret; | |
1760 | ||
33a03aad TG |
1761 | if (dcb->cmd > DCB_CMD_MAX) |
1762 | return -EINVAL; | |
1763 | ||
1764 | /* check if a reply function has been defined for the command */ | |
1765 | fn = &reply_funcs[dcb->cmd]; | |
1766 | if (!fn->cb) | |
1767 | return -EOPNOTSUPP; | |
df85bc14 | 1768 | if (fn->type == RTM_SETDCB && !netlink_capable(skb, CAP_NET_ADMIN)) |
826f328e | 1769 | return -EPERM; |
33a03aad | 1770 | |
2f90b865 AD |
1771 | if (!tb[DCB_ATTR_IFNAME]) |
1772 | return -EINVAL; | |
1773 | ||
d9ac62be | 1774 | netdev = __dev_get_by_name(net, nla_data(tb[DCB_ATTR_IFNAME])); |
2f90b865 | 1775 | if (!netdev) |
3d1f4869 | 1776 | return -ENODEV; |
2f90b865 | 1777 | |
d9ac62be YX |
1778 | if (!netdev->dcbnl_ops) |
1779 | return -EOPNOTSUPP; | |
2f90b865 | 1780 | |
15e47304 | 1781 | reply_skb = dcbnl_newmsg(fn->type, dcb->cmd, portid, nlh->nlmsg_seq, |
33a03aad | 1782 | nlh->nlmsg_flags, &reply_nlh); |
d9ac62be | 1783 | if (!reply_skb) |
b923cda9 | 1784 | return -ENOMEM; |
33a03aad TG |
1785 | |
1786 | ret = fn->cb(netdev, nlh, nlh->nlmsg_seq, tb, reply_skb); | |
1787 | if (ret < 0) { | |
1788 | nlmsg_free(reply_skb); | |
1789 | goto out; | |
1790 | } | |
1791 | ||
1792 | nlmsg_end(reply_skb, reply_nlh); | |
1793 | ||
7c77ab24 | 1794 | ret = rtnl_unicast(reply_skb, net, portid); |
2f90b865 | 1795 | out: |
2f90b865 AD |
1796 | return ret; |
1797 | } | |
1798 | ||
716b31ab TG |
1799 | static struct dcb_app_type *dcb_app_lookup(const struct dcb_app *app, |
1800 | int ifindex, int prio) | |
1801 | { | |
1802 | struct dcb_app_type *itr; | |
1803 | ||
1804 | list_for_each_entry(itr, &dcb_app_list, list) { | |
1805 | if (itr->app.selector == app->selector && | |
1806 | itr->app.protocol == app->protocol && | |
1807 | itr->ifindex == ifindex && | |
08193d1a | 1808 | ((prio == -1) || itr->app.priority == prio)) |
716b31ab TG |
1809 | return itr; |
1810 | } | |
1811 | ||
1812 | return NULL; | |
1813 | } | |
1814 | ||
4e4f2f69 TG |
1815 | static int dcb_app_add(const struct dcb_app *app, int ifindex) |
1816 | { | |
1817 | struct dcb_app_type *entry; | |
1818 | ||
1819 | entry = kmalloc(sizeof(*entry), GFP_ATOMIC); | |
1820 | if (!entry) | |
1821 | return -ENOMEM; | |
1822 | ||
1823 | memcpy(&entry->app, app, sizeof(*app)); | |
1824 | entry->ifindex = ifindex; | |
1825 | list_add(&entry->list, &dcb_app_list); | |
1826 | ||
1827 | return 0; | |
1828 | } | |
1829 | ||
9ab933ab JF |
1830 | /** |
1831 | * dcb_getapp - retrieve the DCBX application user priority | |
a89a501c AL |
1832 | * @dev: network interface |
1833 | * @app: application to get user priority of | |
9ab933ab JF |
1834 | * |
1835 | * On success returns a non-zero 802.1p user priority bitmap | |
1836 | * otherwise returns 0 as the invalid user priority bitmap to | |
1837 | * indicate an error. | |
1838 | */ | |
1839 | u8 dcb_getapp(struct net_device *dev, struct dcb_app *app) | |
1840 | { | |
1841 | struct dcb_app_type *itr; | |
1842 | u8 prio = 0; | |
1843 | ||
52cff74e | 1844 | spin_lock_bh(&dcb_lock); |
08193d1a PM |
1845 | itr = dcb_app_lookup(app, dev->ifindex, -1); |
1846 | if (itr) | |
716b31ab | 1847 | prio = itr->app.priority; |
52cff74e | 1848 | spin_unlock_bh(&dcb_lock); |
9ab933ab JF |
1849 | |
1850 | return prio; | |
1851 | } | |
1852 | EXPORT_SYMBOL(dcb_getapp); | |
1853 | ||
1854 | /** | |
b6db2174 | 1855 | * dcb_setapp - add CEE dcb application data to app list |
a89a501c AL |
1856 | * @dev: network interface |
1857 | * @new: application data to add | |
9ab933ab | 1858 | * |
b6db2174 JF |
1859 | * Priority 0 is an invalid priority in CEE spec. This routine |
1860 | * removes applications from the app list if the priority is | |
16eecd9b | 1861 | * set to zero. Priority is expected to be 8-bit 802.1p user priority bitmap |
9ab933ab | 1862 | */ |
ab6baf98 | 1863 | int dcb_setapp(struct net_device *dev, struct dcb_app *new) |
9ab933ab JF |
1864 | { |
1865 | struct dcb_app_type *itr; | |
7ec79270 | 1866 | struct dcb_app_type event; |
4e4f2f69 | 1867 | int err = 0; |
7ec79270 | 1868 | |
e290ed81 | 1869 | event.ifindex = dev->ifindex; |
7ec79270 | 1870 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1871 | if (dev->dcbnl_ops->getdcbx) |
1872 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
9ab933ab | 1873 | |
52cff74e | 1874 | spin_lock_bh(&dcb_lock); |
9ab933ab | 1875 | /* Search for existing match and replace */ |
08193d1a PM |
1876 | itr = dcb_app_lookup(new, dev->ifindex, -1); |
1877 | if (itr) { | |
716b31ab TG |
1878 | if (new->priority) |
1879 | itr->app.priority = new->priority; | |
1880 | else { | |
1881 | list_del(&itr->list); | |
1882 | kfree(itr); | |
9ab933ab | 1883 | } |
716b31ab | 1884 | goto out; |
9ab933ab JF |
1885 | } |
1886 | /* App type does not exist add new application type */ | |
4e4f2f69 TG |
1887 | if (new->priority) |
1888 | err = dcb_app_add(new, dev->ifindex); | |
9ab933ab | 1889 | out: |
52cff74e | 1890 | spin_unlock_bh(&dcb_lock); |
4e4f2f69 TG |
1891 | if (!err) |
1892 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1893 | return err; | |
9ab933ab JF |
1894 | } |
1895 | EXPORT_SYMBOL(dcb_setapp); | |
1896 | ||
a364c8cf JF |
1897 | /** |
1898 | * dcb_ieee_getapp_mask - retrieve the IEEE DCB application priority | |
a89a501c AL |
1899 | * @dev: network interface |
1900 | * @app: where to store the retrieve application data | |
a364c8cf JF |
1901 | * |
1902 | * Helper routine which on success returns a non-zero 802.1Qaz user | |
1903 | * priority bitmap otherwise returns 0 to indicate the dcb_app was | |
1904 | * not found in APP list. | |
1905 | */ | |
1906 | u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app) | |
1907 | { | |
1908 | struct dcb_app_type *itr; | |
1909 | u8 prio = 0; | |
1910 | ||
52cff74e | 1911 | spin_lock_bh(&dcb_lock); |
08193d1a PM |
1912 | itr = dcb_app_lookup(app, dev->ifindex, -1); |
1913 | if (itr) | |
716b31ab | 1914 | prio |= 1 << itr->app.priority; |
52cff74e | 1915 | spin_unlock_bh(&dcb_lock); |
a364c8cf JF |
1916 | |
1917 | return prio; | |
1918 | } | |
1919 | EXPORT_SYMBOL(dcb_ieee_getapp_mask); | |
1920 | ||
b6db2174 JF |
1921 | /** |
1922 | * dcb_ieee_setapp - add IEEE dcb application data to app list | |
a89a501c AL |
1923 | * @dev: network interface |
1924 | * @new: application data to add | |
b6db2174 JF |
1925 | * |
1926 | * This adds Application data to the list. Multiple application | |
1927 | * entries may exists for the same selector and protocol as long | |
16eecd9b AB |
1928 | * as the priorities are different. Priority is expected to be a |
1929 | * 3-bit unsigned integer | |
b6db2174 JF |
1930 | */ |
1931 | int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new) | |
1932 | { | |
b6db2174 JF |
1933 | struct dcb_app_type event; |
1934 | int err = 0; | |
1935 | ||
e290ed81 | 1936 | event.ifindex = dev->ifindex; |
b6db2174 | 1937 | memcpy(&event.app, new, sizeof(event.app)); |
6bd0e1cb JF |
1938 | if (dev->dcbnl_ops->getdcbx) |
1939 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
b6db2174 | 1940 | |
52cff74e | 1941 | spin_lock_bh(&dcb_lock); |
b6db2174 | 1942 | /* Search for existing match and abort if found */ |
716b31ab TG |
1943 | if (dcb_app_lookup(new, dev->ifindex, new->priority)) { |
1944 | err = -EEXIST; | |
1945 | goto out; | |
b6db2174 JF |
1946 | } |
1947 | ||
4e4f2f69 | 1948 | err = dcb_app_add(new, dev->ifindex); |
b6db2174 | 1949 | out: |
52cff74e | 1950 | spin_unlock_bh(&dcb_lock); |
b6db2174 JF |
1951 | if (!err) |
1952 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1953 | return err; | |
1954 | } | |
1955 | EXPORT_SYMBOL(dcb_ieee_setapp); | |
1956 | ||
f9ae7e4b JF |
1957 | /** |
1958 | * dcb_ieee_delapp - delete IEEE dcb application data from list | |
a89a501c AL |
1959 | * @dev: network interface |
1960 | * @del: application data to delete | |
f9ae7e4b JF |
1961 | * |
1962 | * This removes a matching APP data from the APP list | |
1963 | */ | |
1964 | int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del) | |
1965 | { | |
1966 | struct dcb_app_type *itr; | |
1967 | struct dcb_app_type event; | |
1968 | int err = -ENOENT; | |
1969 | ||
e290ed81 | 1970 | event.ifindex = dev->ifindex; |
f9ae7e4b | 1971 | memcpy(&event.app, del, sizeof(event.app)); |
6bd0e1cb JF |
1972 | if (dev->dcbnl_ops->getdcbx) |
1973 | event.dcbx = dev->dcbnl_ops->getdcbx(dev); | |
f9ae7e4b | 1974 | |
52cff74e | 1975 | spin_lock_bh(&dcb_lock); |
f9ae7e4b | 1976 | /* Search for existing match and remove it. */ |
716b31ab TG |
1977 | if ((itr = dcb_app_lookup(del, dev->ifindex, del->priority))) { |
1978 | list_del(&itr->list); | |
1979 | kfree(itr); | |
1980 | err = 0; | |
f9ae7e4b JF |
1981 | } |
1982 | ||
52cff74e | 1983 | spin_unlock_bh(&dcb_lock); |
f9ae7e4b JF |
1984 | if (!err) |
1985 | call_dcbevent_notifiers(DCB_APP_EVENT, &event); | |
1986 | return err; | |
1987 | } | |
1988 | EXPORT_SYMBOL(dcb_ieee_delapp); | |
1989 | ||
a89a501c | 1990 | /* |
b67c540b PM |
1991 | * dcb_ieee_getapp_prio_dscp_mask_map - For a given device, find mapping from |
1992 | * priorities to the DSCP values assigned to that priority. Initialize p_map | |
1993 | * such that each map element holds a bit mask of DSCP values configured for | |
1994 | * that priority by APP entries. | |
1995 | */ | |
1996 | void dcb_ieee_getapp_prio_dscp_mask_map(const struct net_device *dev, | |
1997 | struct dcb_ieee_app_prio_map *p_map) | |
1998 | { | |
1999 | int ifindex = dev->ifindex; | |
2000 | struct dcb_app_type *itr; | |
2001 | u8 prio; | |
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 | prio = itr->app.priority; | |
2012 | p_map->map[prio] |= 1ULL << itr->app.protocol; | |
2013 | } | |
2014 | } | |
2015 | spin_unlock_bh(&dcb_lock); | |
2016 | } | |
2017 | EXPORT_SYMBOL(dcb_ieee_getapp_prio_dscp_mask_map); | |
2018 | ||
a89a501c | 2019 | /* |
b67c540b PM |
2020 | * dcb_ieee_getapp_dscp_prio_mask_map - For a given device, find mapping from |
2021 | * DSCP values to the priorities assigned to that DSCP value. Initialize p_map | |
2022 | * such that each map element holds a bit mask of priorities configured for a | |
2023 | * given DSCP value by APP entries. | |
2024 | */ | |
2025 | void | |
2026 | dcb_ieee_getapp_dscp_prio_mask_map(const struct net_device *dev, | |
2027 | struct dcb_ieee_app_dscp_map *p_map) | |
2028 | { | |
2029 | int ifindex = dev->ifindex; | |
2030 | struct dcb_app_type *itr; | |
2031 | ||
2032 | memset(p_map->map, 0, sizeof(p_map->map)); | |
2033 | ||
2034 | spin_lock_bh(&dcb_lock); | |
2035 | list_for_each_entry(itr, &dcb_app_list, list) { | |
2036 | if (itr->ifindex == ifindex && | |
2037 | itr->app.selector == IEEE_8021QAZ_APP_SEL_DSCP && | |
2038 | itr->app.protocol < 64 && | |
2039 | itr->app.priority < IEEE_8021QAZ_MAX_TCS) | |
2040 | p_map->map[itr->app.protocol] |= 1 << itr->app.priority; | |
2041 | } | |
2042 | spin_unlock_bh(&dcb_lock); | |
2043 | } | |
2044 | EXPORT_SYMBOL(dcb_ieee_getapp_dscp_prio_mask_map); | |
2045 | ||
a89a501c | 2046 | /* |
b67c540b PM |
2047 | * Per 802.1Q-2014, the selector value of 1 is used for matching on Ethernet |
2048 | * type, with valid PID values >= 1536. A special meaning is then assigned to | |
2049 | * protocol value of 0: "default priority. For use when priority is not | |
2050 | * otherwise specified". | |
2051 | * | |
2052 | * dcb_ieee_getapp_default_prio_mask - For a given device, find all APP entries | |
2053 | * of the form {$PRIO, ETHERTYPE, 0} and construct a bit mask of all default | |
2054 | * priorities set by these entries. | |
2055 | */ | |
2056 | u8 dcb_ieee_getapp_default_prio_mask(const struct net_device *dev) | |
2057 | { | |
2058 | int ifindex = dev->ifindex; | |
2059 | struct dcb_app_type *itr; | |
2060 | u8 mask = 0; | |
2061 | ||
2062 | spin_lock_bh(&dcb_lock); | |
2063 | list_for_each_entry(itr, &dcb_app_list, list) { | |
2064 | if (itr->ifindex == ifindex && | |
2065 | itr->app.selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE && | |
2066 | itr->app.protocol == 0 && | |
2067 | itr->app.priority < IEEE_8021QAZ_MAX_TCS) | |
2068 | mask |= 1 << itr->app.priority; | |
2069 | } | |
2070 | spin_unlock_bh(&dcb_lock); | |
2071 | ||
2072 | return mask; | |
2073 | } | |
2074 | EXPORT_SYMBOL(dcb_ieee_getapp_default_prio_mask); | |
2075 | ||
ca440d91 VO |
2076 | static void dcbnl_flush_dev(struct net_device *dev) |
2077 | { | |
2078 | struct dcb_app_type *itr, *tmp; | |
2079 | ||
d9f4f616 | 2080 | spin_lock_bh(&dcb_lock); |
ca440d91 VO |
2081 | |
2082 | list_for_each_entry_safe(itr, tmp, &dcb_app_list, list) { | |
2083 | if (itr->ifindex == dev->ifindex) { | |
2084 | list_del(&itr->list); | |
2085 | kfree(itr); | |
2086 | } | |
2087 | } | |
2088 | ||
d9f4f616 | 2089 | spin_unlock_bh(&dcb_lock); |
ca440d91 VO |
2090 | } |
2091 | ||
2092 | static int dcbnl_netdevice_event(struct notifier_block *nb, | |
2093 | unsigned long event, void *ptr) | |
2094 | { | |
2095 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
2096 | ||
2097 | switch (event) { | |
2098 | case NETDEV_UNREGISTER: | |
2099 | if (!dev->dcbnl_ops) | |
2100 | return NOTIFY_DONE; | |
2101 | ||
2102 | dcbnl_flush_dev(dev); | |
2103 | ||
2104 | return NOTIFY_OK; | |
2105 | default: | |
2106 | return NOTIFY_DONE; | |
2107 | } | |
2108 | } | |
2109 | ||
2110 | static struct notifier_block dcbnl_nb __read_mostly = { | |
2111 | .notifier_call = dcbnl_netdevice_event, | |
2112 | }; | |
2113 | ||
2f90b865 AD |
2114 | static int __init dcbnl_init(void) |
2115 | { | |
ca440d91 VO |
2116 | int err; |
2117 | ||
2118 | err = register_netdevice_notifier(&dcbnl_nb); | |
2119 | if (err) | |
2120 | return err; | |
2121 | ||
b97bac64 FW |
2122 | rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, 0); |
2123 | rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, 0); | |
2f90b865 AD |
2124 | |
2125 | return 0; | |
2126 | } | |
36b9ad80 | 2127 | device_initcall(dcbnl_init); |