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