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1a95c8df EP |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. | |
8b4139dc | 9 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
c97dab40 | 10 | * Copyright(c) 2015 Intel Deutschland GmbH |
1a95c8df EP |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of version 2 of the GNU General Public License as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | * General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
24 | * USA | |
25 | * | |
26 | * The full GNU General Public License is included in this distribution | |
27 | * in the file called COPYING. | |
28 | * | |
29 | * Contact Information: | |
d01c5366 | 30 | * Intel Linux Wireless <linuxwifi@intel.com> |
1a95c8df EP |
31 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
32 | * | |
33 | * BSD LICENSE | |
34 | * | |
35 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. | |
8b4139dc | 36 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
c97dab40 | 37 | * Copyright(c) 2015 Intel Deutschland GmbH |
1a95c8df EP |
38 | * All rights reserved. |
39 | * | |
40 | * Redistribution and use in source and binary forms, with or without | |
41 | * modification, are permitted provided that the following conditions | |
42 | * are met: | |
43 | * | |
44 | * * Redistributions of source code must retain the above copyright | |
45 | * notice, this list of conditions and the following disclaimer. | |
46 | * * Redistributions in binary form must reproduce the above copyright | |
47 | * notice, this list of conditions and the following disclaimer in | |
48 | * the documentation and/or other materials provided with the | |
49 | * distribution. | |
50 | * * Neither the name Intel Corporation nor the names of its | |
51 | * contributors may be used to endorse or promote products derived | |
52 | * from this software without specific prior written permission. | |
53 | * | |
54 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
55 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
56 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
57 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
58 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
59 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
60 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
61 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
62 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
63 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
64 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
65 | * | |
66 | *****************************************************************************/ | |
67 | #include <net/ipv6.h> | |
68 | #include <net/addrconf.h> | |
c97dab40 | 69 | #include <linux/bitops.h> |
1a95c8df EP |
70 | #include "mvm.h" |
71 | ||
72 | void iwl_mvm_set_wowlan_qos_seq(struct iwl_mvm_sta *mvm_ap_sta, | |
c8b06a99 | 73 | struct iwl_wowlan_config_cmd *cmd) |
1a95c8df EP |
74 | { |
75 | int i; | |
76 | ||
77 | /* | |
78 | * For QoS counters, we store the one to use next, so subtract 0x10 | |
79 | * since the uCode will add 0x10 *before* using the value while we | |
80 | * increment after using the value (i.e. store the next value to use). | |
81 | */ | |
82 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { | |
83 | u16 seq = mvm_ap_sta->tid_data[i].seq_number; | |
84 | seq -= 0x10; | |
85 | cmd->qos_seq[i] = cpu_to_le16(seq); | |
86 | } | |
87 | } | |
88 | ||
8bd22e7b EP |
89 | int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, |
90 | struct ieee80211_vif *vif, | |
91 | bool disable_offloading, | |
c97dab40 | 92 | bool offload_ns, |
8bd22e7b | 93 | u32 cmd_flags) |
1a95c8df EP |
94 | { |
95 | union { | |
96 | struct iwl_proto_offload_cmd_v1 v1; | |
97 | struct iwl_proto_offload_cmd_v2 v2; | |
98 | struct iwl_proto_offload_cmd_v3_small v3s; | |
99 | struct iwl_proto_offload_cmd_v3_large v3l; | |
100 | } cmd = {}; | |
101 | struct iwl_host_cmd hcmd = { | |
102 | .id = PROT_OFFLOAD_CONFIG_CMD, | |
8bd22e7b | 103 | .flags = cmd_flags, |
1a95c8df EP |
104 | .data[0] = &cmd, |
105 | .dataflags[0] = IWL_HCMD_DFL_DUP, | |
106 | }; | |
107 | struct iwl_proto_offload_cmd_common *common; | |
108 | u32 enabled = 0, size; | |
109 | u32 capa_flags = mvm->fw->ucode_capa.flags; | |
110 | #if IS_ENABLED(CONFIG_IPV6) | |
111 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
112 | int i; | |
c97dab40 SS |
113 | /* |
114 | * Skip tentative address when ns offload is enabled to avoid | |
115 | * violating RFC4862. | |
116 | * Keep tentative address when ns offload is disabled so the NS packets | |
117 | * will not be filtered out and will wake up the host. | |
118 | */ | |
119 | bool skip_tentative = offload_ns; | |
1a95c8df EP |
120 | |
121 | if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL || | |
122 | capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) { | |
123 | struct iwl_ns_config *nsc; | |
124 | struct iwl_targ_addr *addrs; | |
125 | int n_nsc, n_addrs; | |
126 | int c; | |
c97dab40 | 127 | int num_skipped = 0; |
1a95c8df EP |
128 | |
129 | if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) { | |
130 | nsc = cmd.v3s.ns_config; | |
131 | n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S; | |
132 | addrs = cmd.v3s.targ_addrs; | |
133 | n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S; | |
134 | } else { | |
135 | nsc = cmd.v3l.ns_config; | |
136 | n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L; | |
137 | addrs = cmd.v3l.targ_addrs; | |
138 | n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L; | |
139 | } | |
140 | ||
1a95c8df EP |
141 | /* |
142 | * For each address we have (and that will fit) fill a target | |
143 | * address struct and combine for NS offload structs with the | |
144 | * solicited node addresses. | |
145 | */ | |
146 | for (i = 0, c = 0; | |
147 | i < mvmvif->num_target_ipv6_addrs && | |
148 | i < n_addrs && c < n_nsc; i++) { | |
149 | struct in6_addr solicited_addr; | |
150 | int j; | |
151 | ||
c97dab40 SS |
152 | if (skip_tentative && |
153 | test_bit(i, mvmvif->tentative_addrs)) { | |
154 | num_skipped++; | |
155 | continue; | |
156 | } | |
157 | ||
1a95c8df EP |
158 | addrconf_addr_solict_mult(&mvmvif->target_ipv6_addrs[i], |
159 | &solicited_addr); | |
160 | for (j = 0; j < c; j++) | |
161 | if (ipv6_addr_cmp(&nsc[j].dest_ipv6_addr, | |
162 | &solicited_addr) == 0) | |
163 | break; | |
164 | if (j == c) | |
165 | c++; | |
166 | addrs[i].addr = mvmvif->target_ipv6_addrs[i]; | |
167 | addrs[i].config_num = cpu_to_le32(j); | |
168 | nsc[j].dest_ipv6_addr = solicited_addr; | |
169 | memcpy(nsc[j].target_mac_addr, vif->addr, ETH_ALEN); | |
170 | } | |
171 | ||
c97dab40 SS |
172 | if (mvmvif->num_target_ipv6_addrs - num_skipped) |
173 | enabled |= IWL_D3_PROTO_IPV6_VALID; | |
174 | ||
1a95c8df | 175 | if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) |
c97dab40 SS |
176 | cmd.v3s.num_valid_ipv6_addrs = |
177 | cpu_to_le32(i - num_skipped); | |
1a95c8df | 178 | else |
c97dab40 SS |
179 | cmd.v3l.num_valid_ipv6_addrs = |
180 | cpu_to_le32(i - num_skipped); | |
1a95c8df | 181 | } else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) { |
c97dab40 | 182 | bool found = false; |
1a95c8df EP |
183 | |
184 | BUILD_BUG_ON(sizeof(cmd.v2.target_ipv6_addr[0]) != | |
185 | sizeof(mvmvif->target_ipv6_addrs[0])); | |
186 | ||
187 | for (i = 0; i < min(mvmvif->num_target_ipv6_addrs, | |
c97dab40 SS |
188 | IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2); i++) { |
189 | if (skip_tentative && | |
190 | test_bit(i, mvmvif->tentative_addrs)) | |
191 | continue; | |
192 | ||
1a95c8df EP |
193 | memcpy(cmd.v2.target_ipv6_addr[i], |
194 | &mvmvif->target_ipv6_addrs[i], | |
195 | sizeof(cmd.v2.target_ipv6_addr[i])); | |
1a95c8df | 196 | |
c97dab40 SS |
197 | found = true; |
198 | } | |
199 | if (found) { | |
200 | enabled |= IWL_D3_PROTO_IPV6_VALID; | |
201 | memcpy(cmd.v2.ndp_mac_addr, vif->addr, ETH_ALEN); | |
202 | } | |
203 | } else { | |
204 | bool found = false; | |
1a95c8df EP |
205 | BUILD_BUG_ON(sizeof(cmd.v1.target_ipv6_addr[0]) != |
206 | sizeof(mvmvif->target_ipv6_addrs[0])); | |
207 | ||
208 | for (i = 0; i < min(mvmvif->num_target_ipv6_addrs, | |
c97dab40 SS |
209 | IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1); i++) { |
210 | if (skip_tentative && | |
211 | test_bit(i, mvmvif->tentative_addrs)) | |
212 | continue; | |
213 | ||
1a95c8df EP |
214 | memcpy(cmd.v1.target_ipv6_addr[i], |
215 | &mvmvif->target_ipv6_addrs[i], | |
216 | sizeof(cmd.v1.target_ipv6_addr[i])); | |
c97dab40 SS |
217 | |
218 | found = true; | |
219 | } | |
220 | ||
221 | if (found) { | |
222 | enabled |= IWL_D3_PROTO_IPV6_VALID; | |
223 | memcpy(cmd.v1.ndp_mac_addr, vif->addr, ETH_ALEN); | |
224 | } | |
1a95c8df | 225 | } |
1a95c8df | 226 | |
c97dab40 SS |
227 | if (offload_ns && (enabled & IWL_D3_PROTO_IPV6_VALID)) |
228 | enabled |= IWL_D3_PROTO_OFFLOAD_NS; | |
229 | #endif | |
1a95c8df EP |
230 | if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) { |
231 | common = &cmd.v3s.common; | |
232 | size = sizeof(cmd.v3s); | |
233 | } else if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) { | |
234 | common = &cmd.v3l.common; | |
235 | size = sizeof(cmd.v3l); | |
236 | } else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) { | |
237 | common = &cmd.v2.common; | |
238 | size = sizeof(cmd.v2); | |
239 | } else { | |
240 | common = &cmd.v1.common; | |
241 | size = sizeof(cmd.v1); | |
242 | } | |
243 | ||
244 | if (vif->bss_conf.arp_addr_cnt) { | |
c97dab40 | 245 | enabled |= IWL_D3_PROTO_OFFLOAD_ARP | IWL_D3_PROTO_IPV4_VALID; |
1a95c8df EP |
246 | common->host_ipv4_addr = vif->bss_conf.arp_addr_list[0]; |
247 | memcpy(common->arp_mac_addr, vif->addr, ETH_ALEN); | |
248 | } | |
249 | ||
8bd22e7b EP |
250 | if (!disable_offloading) |
251 | common->enabled = cpu_to_le32(enabled); | |
1a95c8df EP |
252 | |
253 | hcmd.len[0] = size; | |
254 | return iwl_mvm_send_cmd(mvm, &hcmd); | |
255 | } |