256 lines
8.4 KiB
C
256 lines
8.4 KiB
C
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/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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* Copyright(c) 2015 Intel Deutschland GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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* Copyright(c) 2015 Intel Deutschland GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include <net/ipv6.h>
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#include <net/addrconf.h>
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#include <linux/bitops.h>
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#include "mvm.h"
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void iwl_mvm_set_wowlan_qos_seq(struct iwl_mvm_sta *mvm_ap_sta,
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struct iwl_wowlan_config_cmd *cmd)
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{
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int i;
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/*
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* For QoS counters, we store the one to use next, so subtract 0x10
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* since the uCode will add 0x10 *before* using the value while we
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* increment after using the value (i.e. store the next value to use).
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*/
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for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
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u16 seq = mvm_ap_sta->tid_data[i].seq_number;
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seq -= 0x10;
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cmd->qos_seq[i] = cpu_to_le16(seq);
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}
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}
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int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
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struct ieee80211_vif *vif,
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bool disable_offloading,
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bool offload_ns,
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u32 cmd_flags)
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{
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union {
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struct iwl_proto_offload_cmd_v1 v1;
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struct iwl_proto_offload_cmd_v2 v2;
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struct iwl_proto_offload_cmd_v3_small v3s;
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struct iwl_proto_offload_cmd_v3_large v3l;
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} cmd = {};
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struct iwl_host_cmd hcmd = {
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.id = PROT_OFFLOAD_CONFIG_CMD,
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.flags = cmd_flags,
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.data[0] = &cmd,
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.dataflags[0] = IWL_HCMD_DFL_DUP,
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};
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struct iwl_proto_offload_cmd_common *common;
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u32 enabled = 0, size;
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u32 capa_flags = mvm->fw->ucode_capa.flags;
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#if IS_ENABLED(CONFIG_IPV6)
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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int i;
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/*
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* Skip tentative address when ns offload is enabled to avoid
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* violating RFC4862.
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* Keep tentative address when ns offload is disabled so the NS packets
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* will not be filtered out and will wake up the host.
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*/
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bool skip_tentative = offload_ns;
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if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL ||
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capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) {
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struct iwl_ns_config *nsc;
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struct iwl_targ_addr *addrs;
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int n_nsc, n_addrs;
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int c;
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int num_skipped = 0;
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if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) {
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nsc = cmd.v3s.ns_config;
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n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S;
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addrs = cmd.v3s.targ_addrs;
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n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S;
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} else {
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nsc = cmd.v3l.ns_config;
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n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L;
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addrs = cmd.v3l.targ_addrs;
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n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L;
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}
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/*
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* For each address we have (and that will fit) fill a target
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* address struct and combine for NS offload structs with the
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* solicited node addresses.
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*/
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for (i = 0, c = 0;
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i < mvmvif->num_target_ipv6_addrs &&
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i < n_addrs && c < n_nsc; i++) {
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struct in6_addr solicited_addr;
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int j;
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if (skip_tentative &&
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test_bit(i, mvmvif->tentative_addrs)) {
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num_skipped++;
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continue;
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}
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addrconf_addr_solict_mult(&mvmvif->target_ipv6_addrs[i],
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&solicited_addr);
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for (j = 0; j < c; j++)
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if (ipv6_addr_cmp(&nsc[j].dest_ipv6_addr,
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&solicited_addr) == 0)
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break;
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if (j == c)
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c++;
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addrs[i].addr = mvmvif->target_ipv6_addrs[i];
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addrs[i].config_num = cpu_to_le32(j);
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nsc[j].dest_ipv6_addr = solicited_addr;
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memcpy(nsc[j].target_mac_addr, vif->addr, ETH_ALEN);
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}
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if (mvmvif->num_target_ipv6_addrs - num_skipped)
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enabled |= IWL_D3_PROTO_IPV6_VALID;
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if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL)
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cmd.v3s.num_valid_ipv6_addrs =
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cpu_to_le32(i - num_skipped);
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else
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cmd.v3l.num_valid_ipv6_addrs =
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cpu_to_le32(i - num_skipped);
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} else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
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bool found = false;
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BUILD_BUG_ON(sizeof(cmd.v2.target_ipv6_addr[0]) !=
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sizeof(mvmvif->target_ipv6_addrs[0]));
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for (i = 0; i < min(mvmvif->num_target_ipv6_addrs,
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IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2); i++) {
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if (skip_tentative &&
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test_bit(i, mvmvif->tentative_addrs))
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continue;
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memcpy(cmd.v2.target_ipv6_addr[i],
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&mvmvif->target_ipv6_addrs[i],
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sizeof(cmd.v2.target_ipv6_addr[i]));
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found = true;
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}
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if (found) {
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enabled |= IWL_D3_PROTO_IPV6_VALID;
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memcpy(cmd.v2.ndp_mac_addr, vif->addr, ETH_ALEN);
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}
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} else {
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bool found = false;
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BUILD_BUG_ON(sizeof(cmd.v1.target_ipv6_addr[0]) !=
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sizeof(mvmvif->target_ipv6_addrs[0]));
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for (i = 0; i < min(mvmvif->num_target_ipv6_addrs,
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IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1); i++) {
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if (skip_tentative &&
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test_bit(i, mvmvif->tentative_addrs))
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continue;
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memcpy(cmd.v1.target_ipv6_addr[i],
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&mvmvif->target_ipv6_addrs[i],
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sizeof(cmd.v1.target_ipv6_addr[i]));
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found = true;
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}
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if (found) {
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enabled |= IWL_D3_PROTO_IPV6_VALID;
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memcpy(cmd.v1.ndp_mac_addr, vif->addr, ETH_ALEN);
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}
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}
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if (offload_ns && (enabled & IWL_D3_PROTO_IPV6_VALID))
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enabled |= IWL_D3_PROTO_OFFLOAD_NS;
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#endif
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if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) {
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common = &cmd.v3s.common;
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size = sizeof(cmd.v3s);
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} else if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) {
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common = &cmd.v3l.common;
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size = sizeof(cmd.v3l);
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} else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
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common = &cmd.v2.common;
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size = sizeof(cmd.v2);
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} else {
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common = &cmd.v1.common;
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size = sizeof(cmd.v1);
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}
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if (vif->bss_conf.arp_addr_cnt) {
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enabled |= IWL_D3_PROTO_OFFLOAD_ARP | IWL_D3_PROTO_IPV4_VALID;
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common->host_ipv4_addr = vif->bss_conf.arp_addr_list[0];
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memcpy(common->arp_mac_addr, vif->addr, ETH_ALEN);
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}
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if (!disable_offloading)
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common->enabled = cpu_to_le32(enabled);
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hcmd.len[0] = size;
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return iwl_mvm_send_cmd(mvm, &hcmd);
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}
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