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path: root/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c306
1 files changed, 306 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c
new file mode 100644
index 000000000000..ab0ba85936b4
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2022 Intel Corporation
+ */
+#include "mvm.h"
+
+static void iwl_mvm_mld_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_mac_config_cmd *cmd,
+ u32 action)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct ieee80211_bss_conf *link_conf;
+ unsigned int link_id;
+
+ cmd->id_and_color = cpu_to_le32(mvmvif->id);
+ cmd->action = cpu_to_le32(action);
+
+ cmd->mac_type = cpu_to_le32(iwl_mvm_get_mac_type(vif));
+
+ memcpy(cmd->local_mld_addr, vif->addr, ETH_ALEN);
+
+ cmd->he_support = 0;
+ cmd->eht_support = 0;
+
+ /* should be set by specific context type handler */
+ cmd->filter_flags = 0;
+
+ cmd->nic_not_ack_enabled =
+ cpu_to_le32(!iwl_mvm_is_nic_ack_enabled(mvm, vif));
+
+ if (iwlwifi_mod_params.disable_11ax)
+ return;
+
+ /* If we have MLO enabled, then the firmware needs to enable
+ * address translation for the station(s) we add. That depends
+ * on having EHT enabled in firmware, which in turn depends on
+ * mac80211 in the code below.
+ * However, mac80211 doesn't enable HE/EHT until it has parsed
+ * the association response successfully, so just skip all that
+ * and enable both when we have MLO.
+ */
+ if (vif->valid_links) {
+ cmd->he_support = cpu_to_le32(1);
+ cmd->eht_support = cpu_to_le32(1);
+ return;
+ }
+
+ rcu_read_lock();
+ for (link_id = 0; link_id < ARRAY_SIZE((vif)->link_conf); link_id++) {
+ link_conf = rcu_dereference(vif->link_conf[link_id]);
+ if (!link_conf)
+ continue;
+
+ if (link_conf->he_support)
+ cmd->he_support = cpu_to_le32(1);
+
+ /* it's not reasonable to have EHT without HE and FW API doesn't
+ * support it. Ignore EHT in this case.
+ */
+ if (!link_conf->he_support && link_conf->eht_support)
+ continue;
+
+ if (link_conf->eht_support) {
+ cmd->eht_support = cpu_to_le32(1);
+ break;
+ }
+ }
+ rcu_read_unlock();
+}
+
+static int iwl_mvm_mld_mac_ctxt_send_cmd(struct iwl_mvm *mvm,
+ struct iwl_mac_config_cmd *cmd)
+{
+ int ret = iwl_mvm_send_cmd_pdu(mvm,
+ WIDE_ID(MAC_CONF_GROUP, MAC_CONFIG_CMD),
+ 0, sizeof(*cmd), cmd);
+ if (ret)
+ IWL_ERR(mvm, "Failed to send MAC_CONFIG_CMD (action:%d): %d\n",
+ le32_to_cpu(cmd->action), ret);
+ return ret;
+}
+
+static int iwl_mvm_mld_mac_ctxt_cmd_sta(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 action, bool force_assoc_off)
+{
+ struct iwl_mac_config_cmd cmd = {};
+
+ WARN_ON(vif->type != NL80211_IFTYPE_STATION);
+
+ /* Fill the common data for all mac context types */
+ iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
+
+ /*
+ * We always want to hear MCAST frames, if we're not authorized yet,
+ * we'll drop them.
+ */
+ cmd.filter_flags |= cpu_to_le32(MAC_CFG_FILTER_ACCEPT_GRP);
+
+ if (vif->p2p)
+ cmd.client.ctwin =
+ iwl_mvm_mac_ctxt_cmd_p2p_sta_get_oppps_ctwin(mvm, vif);
+
+ if (vif->cfg.assoc && !force_assoc_off) {
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+ cmd.client.is_assoc = cpu_to_le32(1);
+
+ if (!mvmvif->authorized &&
+ fw_has_capa(&mvm->fw->ucode_capa,
+ IWL_UCODE_TLV_CAPA_COEX_HIGH_PRIO))
+ cmd.client.data_policy |=
+ cpu_to_le32(COEX_HIGH_PRIORITY_ENABLE);
+
+ } else {
+ cmd.client.is_assoc = cpu_to_le32(0);
+
+ /* Allow beacons to pass through as long as we are not
+ * associated, or we do not have dtim period information.
+ */
+ cmd.filter_flags |= cpu_to_le32(MAC_CFG_FILTER_ACCEPT_BEACON);
+ }
+
+ cmd.client.assoc_id = cpu_to_le32(vif->cfg.aid);
+
+ if (vif->probe_req_reg && vif->cfg.assoc && vif->p2p)
+ cmd.filter_flags |= cpu_to_le32(MAC_CFG_FILTER_ACCEPT_PROBE_REQ);
+
+ if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)
+ cmd.client.data_policy |=
+ iwl_mvm_mac_ctxt_cmd_sta_get_twt_policy(mvm, vif);
+
+ return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
+}
+
+static int iwl_mvm_mld_mac_ctxt_cmd_listener(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 action)
+{
+ struct iwl_mac_config_cmd cmd = {};
+
+ WARN_ON(vif->type != NL80211_IFTYPE_MONITOR);
+
+ iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
+
+ cmd.filter_flags = cpu_to_le32(MAC_CFG_FILTER_PROMISC |
+ MAC_FILTER_IN_CONTROL_AND_MGMT |
+ MAC_CFG_FILTER_ACCEPT_BEACON |
+ MAC_CFG_FILTER_ACCEPT_PROBE_REQ |
+ MAC_CFG_FILTER_ACCEPT_GRP);
+
+ return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
+}
+
+static int iwl_mvm_mld_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 action)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mac_config_cmd cmd = {};
+
+ WARN_ON(vif->type != NL80211_IFTYPE_ADHOC);
+
+ iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
+
+ cmd.filter_flags = cpu_to_le32(MAC_CFG_FILTER_ACCEPT_BEACON |
+ MAC_CFG_FILTER_ACCEPT_PROBE_REQ |
+ MAC_CFG_FILTER_ACCEPT_GRP);
+
+ /* TODO: Assumes that the beacon id == mac context id */
+ cmd.go_ibss.beacon_template = cpu_to_le32(mvmvif->id);
+
+ return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
+}
+
+static int iwl_mvm_mld_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 action)
+{
+ struct iwl_mac_config_cmd cmd = {};
+
+ WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE);
+
+ iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
+
+ cmd.p2p_dev.is_disc_extended =
+ iwl_mac_ctxt_p2p_dev_has_extended_disc(mvm, vif);
+
+ /* Override the filter flags to accept only probe requests */
+ cmd.filter_flags = cpu_to_le32(MAC_CFG_FILTER_ACCEPT_PROBE_REQ);
+
+ return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
+}
+
+static int iwl_mvm_mld_mac_ctxt_cmd_ap_go(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 action)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mac_config_cmd cmd = {};
+
+ WARN_ON(vif->type != NL80211_IFTYPE_AP);
+
+ /* Fill the common data for all mac context types */
+ iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
+
+ iwl_mvm_mac_ctxt_cmd_ap_set_filter_flags(mvm, mvmvif,
+ &cmd.filter_flags,
+ MAC_CFG_FILTER_ACCEPT_PROBE_REQ,
+ MAC_CFG_FILTER_ACCEPT_BEACON);
+
+ /* TODO: Assume that the beacon id == mac context id */
+ cmd.go_ibss.beacon_template = cpu_to_le32(mvmvif->id);
+
+ return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
+}
+
+static int iwl_mvm_mld_mac_ctx_send(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 action, bool force_assoc_off)
+{
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ return iwl_mvm_mld_mac_ctxt_cmd_sta(mvm, vif, action,
+ force_assoc_off);
+ case NL80211_IFTYPE_AP:
+ return iwl_mvm_mld_mac_ctxt_cmd_ap_go(mvm, vif, action);
+ case NL80211_IFTYPE_MONITOR:
+ return iwl_mvm_mld_mac_ctxt_cmd_listener(mvm, vif, action);
+ case NL80211_IFTYPE_P2P_DEVICE:
+ return iwl_mvm_mld_mac_ctxt_cmd_p2p_device(mvm, vif, action);
+ case NL80211_IFTYPE_ADHOC:
+ return iwl_mvm_mld_mac_ctxt_cmd_ibss(mvm, vif, action);
+ default:
+ break;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+int iwl_mvm_mld_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ int ret;
+
+ if (WARN_ON_ONCE(vif->type == NL80211_IFTYPE_NAN))
+ return -EOPNOTSUPP;
+
+ if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n",
+ vif->addr, ieee80211_vif_type_p2p(vif)))
+ return -EIO;
+
+ ret = iwl_mvm_mld_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD,
+ true);
+ if (ret)
+ return ret;
+
+ /* will only do anything at resume from D3 time */
+ iwl_mvm_set_last_nonqos_seq(mvm, vif);
+
+ mvmvif->uploaded = true;
+ return 0;
+}
+
+int iwl_mvm_mld_mac_ctxt_changed(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ bool force_assoc_off)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+ if (WARN_ON_ONCE(vif->type == NL80211_IFTYPE_NAN))
+ return -EOPNOTSUPP;
+
+ if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n",
+ vif->addr, ieee80211_vif_type_p2p(vif)))
+ return -EIO;
+
+ return iwl_mvm_mld_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY,
+ force_assoc_off);
+}
+
+int iwl_mvm_mld_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mac_config_cmd cmd = {
+ .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
+ .id_and_color = cpu_to_le32(mvmvif->id),
+ };
+ int ret;
+
+ if (WARN_ON_ONCE(vif->type == NL80211_IFTYPE_NAN))
+ return -EOPNOTSUPP;
+
+ if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n",
+ vif->addr, ieee80211_vif_type_p2p(vif)))
+ return -EIO;
+
+ ret = iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
+ if (ret)
+ return ret;
+
+ mvmvif->uploaded = false;
+
+ return 0;
+}
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