diff options
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 61 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.h | 11 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-trans.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 114 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 62 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 200 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.h | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 25 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 21 |
11 files changed, 481 insertions, 29 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c index f470f9aea50f..0cd4718372f5 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c @@ -22,6 +22,7 @@ #include "fw/api/commands.h" #include "fw/api/cmdhdr.h" #include "fw/img.h" +#include "mei/iwl-mei.h" /* NVM offsets (in words) definitions */ enum nvm_offsets { @@ -1115,6 +1116,66 @@ iwl_nvm_no_wide_in_5ghz(struct iwl_trans *trans, const struct iwl_cfg *cfg, } struct iwl_nvm_data * +iwl_parse_mei_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg, + const struct iwl_mei_nvm *mei_nvm, + const struct iwl_fw *fw) +{ + struct iwl_nvm_data *data; + u32 sbands_flags = 0; + u8 rx_chains = fw->valid_rx_ant; + u8 tx_chains = fw->valid_rx_ant; + + if (cfg->uhb_supported) + data = kzalloc(struct_size(data, channels, + IWL_NVM_NUM_CHANNELS_UHB), + GFP_KERNEL); + else + data = kzalloc(struct_size(data, channels, + IWL_NVM_NUM_CHANNELS_EXT), + GFP_KERNEL); + if (!data) + return NULL; + + BUILD_BUG_ON(ARRAY_SIZE(mei_nvm->channels) != + IWL_NVM_NUM_CHANNELS_UHB); + data->nvm_version = mei_nvm->nvm_version; + + iwl_set_radio_cfg(cfg, data, mei_nvm->radio_cfg); + if (data->valid_tx_ant) + tx_chains &= data->valid_tx_ant; + if (data->valid_rx_ant) + rx_chains &= data->valid_rx_ant; + + data->sku_cap_mimo_disabled = false; + data->sku_cap_band_24ghz_enable = true; + data->sku_cap_band_52ghz_enable = true; + data->sku_cap_11n_enable = + !(iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL); + data->sku_cap_11ac_enable = true; + data->sku_cap_11ax_enable = + mei_nvm->caps & MEI_NVM_CAPS_11AX_SUPPORT; + + data->lar_enabled = mei_nvm->caps & MEI_NVM_CAPS_LARI_SUPPORT; + + data->n_hw_addrs = mei_nvm->n_hw_addrs; + /* If no valid mac address was found - bail out */ + if (iwl_set_hw_address(trans, cfg, data, NULL, NULL)) { + kfree(data); + return NULL; + } + + if (data->lar_enabled && + fw_has_capa(&fw->ucode_capa, IWL_UCODE_TLV_CAPA_LAR_SUPPORT)) + sbands_flags |= IWL_NVM_SBANDS_FLAGS_LAR; + + iwl_init_sbands(trans, data, mei_nvm->channels, tx_chains, rx_chains, + sbands_flags, true, fw); + + return data; +} +IWL_EXPORT_SYMBOL(iwl_parse_mei_nvm_data); + +struct iwl_nvm_data * iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg, const struct iwl_fw *fw, const __be16 *nvm_hw, const __le16 *nvm_sw, diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.h b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.h index e1f5a9741850..e01f7751cf11 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2005-2015, 2018-2020 Intel Corporation + * Copyright (C) 2005-2015, 2018-2021 Intel Corporation * Copyright (C) 2016-2017 Intel Deutschland GmbH */ #ifndef __iwl_nvm_parse_h__ @@ -8,6 +8,7 @@ #include <net/cfg80211.h> #include "iwl-eeprom-parse.h" +#include "mei/iwl-mei.h" /** * enum iwl_nvm_sbands_flags - modification flags for the channel profiles @@ -81,4 +82,12 @@ void iwl_nvm_fixups(u32 hw_id, unsigned int section, u8 *data, struct iwl_nvm_data *iwl_get_nvm(struct iwl_trans *trans, const struct iwl_fw *fw); +/** + * iwl_parse_mei_nvm_data - parse the mei_nvm_data and get an iwl_nvm_data + */ +struct iwl_nvm_data * +iwl_parse_mei_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg, + const struct iwl_mei_nvm *mei_nvm, + const struct iwl_fw *fw); + #endif /* __iwl_nvm_parse_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h index 4ebb1871bd1f..a4060af50201 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h @@ -924,6 +924,7 @@ struct iwl_trans_txqs { /** * struct iwl_trans - transport common data * + * @csme_own - true if we couldn't get ownership on the device * @ops - pointer to iwl_trans_ops * @op_mode - pointer to the op_mode * @trans_cfg: the trans-specific configuration part @@ -958,6 +959,7 @@ struct iwl_trans_txqs { * @iwl_trans_txqs: transport tx queues data. */ struct iwl_trans { + bool csme_own; const struct iwl_trans_ops *ops; struct iwl_op_mode *op_mode; const struct iwl_cfg_trans_params *trans_cfg; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index 863fec150e53..6ce78c03e51f 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -757,6 +757,8 @@ int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b) if (ret) return ret; + iwl_mei_set_power_limit(per_chain); + IWL_DEBUG_RADIO(mvm, "Sending REDUCE_TX_POWER_CMD per chain\n"); return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); } @@ -1401,7 +1403,6 @@ static int iwl_mvm_load_rt_fw(struct iwl_mvm *mvm) if (iwl_mvm_has_unified_ucode(mvm)) return iwl_run_unified_mvm_ucode(mvm); - WARN_ON(!mvm->nvm_data); ret = iwl_run_init_mvm_ucode(mvm); if (ret) { diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 9fb9c7dad314..c96a0ece8066 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2012-2014, 2018-2020 Intel Corporation + * Copyright (C) 2012-2014, 2018-2021 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -190,6 +190,7 @@ struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, if (IS_ERR_OR_NULL(resp)) { IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", PTR_ERR_OR_ZERO(resp)); + resp = NULL; goto out; } @@ -211,7 +212,6 @@ struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, __le16_to_cpu(resp->cap), resp_ver); /* Store the return source id */ src_id = resp->source_id; - kfree(resp); if (IS_ERR_OR_NULL(regd)) { IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", PTR_ERR_OR_ZERO(regd)); @@ -223,7 +223,10 @@ struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, mvm->lar_regdom_set = true; mvm->mcc_src = src_id; + iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); + out: + kfree(resp); return regd; } @@ -1083,6 +1086,27 @@ int __iwl_mvm_mac_start(struct iwl_mvm *mvm) lockdep_assert_held(&mvm->mutex); + ret = iwl_mvm_mei_get_ownership(mvm); + if (ret) + return ret; + + if (mvm->mei_nvm_data) { + /* We got the NIC, we can now free the MEI NVM data */ + kfree(mvm->mei_nvm_data); + mvm->mei_nvm_data = NULL; + + /* + * We can't free the nvm_data we allocated based on the SAP + * data because we registered to cfg80211 with the channels + * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data + * just in order to be able free it later. + * NULLify nvm_data so that we will read the NVM from the + * firmware this time. + */ + mvm->temp_nvm_data = mvm->nvm_data; + mvm->nvm_data = NULL; + } + if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { /* * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART @@ -1509,6 +1533,15 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, mvm->monitor_on = true; iwl_mvm_vif_dbgfs_register(mvm, vif); + + if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && + vif->type == NL80211_IFTYPE_STATION && !vif->p2p && + !mvm->csme_vif && mvm->mei_registered) { + iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); + iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); + mvm->csme_vif = vif; + } + goto out_unlock; out_unbind: @@ -1561,6 +1594,11 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); + if (vif == mvm->csme_vif) { + iwl_mei_set_netdev(NULL); + mvm->csme_vif = NULL; + } + probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, lockdep_is_held(&mvm->mutex)); RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); @@ -2371,6 +2409,7 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, IEEE80211_SMPS_DYNAMIC); } } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { + iwl_mvm_mei_host_disassociated(mvm); /* * If update fails - SF might be running in associated * mode while disassociated - which is forbidden. @@ -3107,6 +3146,69 @@ static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, } } +static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_mvm_sta *mvm_sta) +{ +#if IS_ENABLED(CONFIG_IWLMEI) + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mei_conn_info conn_info = { + .ssid_len = vif->bss_conf.ssid_len, + .channel = vif->bss_conf.chandef.chan->hw_value, + }; + + if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) + return; + + if (!mvm->mei_registered) + return; + + switch (mvm_sta->pairwise_cipher) { + case WLAN_CIPHER_SUITE_CCMP: + conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; + break; + case WLAN_CIPHER_SUITE_GCMP: + conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; + break; + case WLAN_CIPHER_SUITE_GCMP_256: + conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; + break; + case 0: + /* open profile */ + break; + default: + /* cipher not supported, don't send anything to iwlmei */ + return; + } + + switch (mvmvif->rekey_data.akm) { + case WLAN_AKM_SUITE_SAE & 0xff: + conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; + break; + case WLAN_AKM_SUITE_PSK & 0xff: + conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; + break; + case WLAN_AKM_SUITE_8021X & 0xff: + conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; + break; + case 0: + /* open profile */ + conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; + break; + default: + /* auth method / AKM not supported */ + /* TODO: All the FT vesions of these? */ + return; + } + + memcpy(conn_info.ssid, vif->bss_conf.ssid, vif->bss_conf.ssid_len); + memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); + + /* TODO: add support for collocated AP data */ + iwl_mei_host_associated(&conn_info, NULL); +#endif +} + static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -3251,6 +3353,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, * multicast data frames can be forwarded to the driver */ iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); + iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); } iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, @@ -3460,6 +3563,8 @@ static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, int ret, i; u8 key_offset; + mvmsta = iwl_mvm_sta_from_mac80211(sta); + switch (key->cipher) { case WLAN_CIPHER_SUITE_TKIP: if (!mvm->trans->trans_cfg->gen2) { @@ -3568,7 +3673,6 @@ static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, struct ieee80211_key_seq seq; int tid, q; - mvmsta = iwl_mvm_sta_from_mac80211(sta); WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); ptk_pn = kzalloc(struct_size(ptk_pn, q, mvm->trans->num_rx_queues), @@ -3595,6 +3699,9 @@ static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, else key_offset = STA_KEY_IDX_INVALID; + if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) + mvmsta->pairwise_cipher = key->cipher; + IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); if (ret) { @@ -3640,7 +3747,6 @@ static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, (key->cipher == WLAN_CIPHER_SUITE_CCMP || key->cipher == WLAN_CIPHER_SUITE_GCMP || key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { - mvmsta = iwl_mvm_sta_from_mac80211(sta); ptk_pn = rcu_dereference_protected( mvmsta->ptk_pn[keyidx], lockdep_is_held(&mvm->mutex)); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 2b1dcd60e00f..515591b29b0c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -30,6 +30,7 @@ #include "fw/runtime.h" #include "fw/dbg.h" #include "fw/acpi.h" +#include "mei/iwl-mei.h" #include "iwl-nvm-parse.h" #include <linux/average.h> @@ -830,6 +831,18 @@ struct iwl_mvm { const char *nvm_file_name; struct iwl_nvm_data *nvm_data; + struct iwl_mei_nvm *mei_nvm_data; + struct iwl_mvm_csme_conn_info __rcu *csme_conn_info; + bool mei_rfkill_blocked; + bool mei_registered; + struct work_struct sap_connected_wk; + + /* + * NVM built based on the SAP data but that we can't free even after + * we get ownership because it contains the cfg80211's channel. + */ + struct iwl_nvm_data *temp_nvm_data; + /* NVM sections */ struct iwl_nvm_section nvm_sections[NVM_MAX_NUM_SECTIONS]; @@ -1021,6 +1034,8 @@ struct iwl_mvm { /* Indicate if 32Khz external clock is valid */ u32 ext_clock_valid; + /* This vif used by CSME to send / receive traffic */ + struct ieee80211_vif *csme_vif; struct ieee80211_vif __rcu *csa_vif; struct ieee80211_vif __rcu *csa_tx_blocked_vif; u8 csa_tx_block_bcn_timeout; @@ -1136,6 +1151,11 @@ enum iwl_mvm_status { IWL_MVM_STATUS_IN_D3, }; +struct iwl_mvm_csme_conn_info { + struct rcu_head rcu_head; + struct iwl_mei_conn_info conn_info; +}; + /* Keep track of completed init configuration */ enum iwl_mvm_init_status { IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE = BIT(0), @@ -2158,4 +2178,46 @@ enum iwl_location_cipher iwl_mvm_cipher_to_location_cipher(u32 cipher) return IWL_LOCATION_CIPHER_INVALID; } } + +struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm); +static inline int iwl_mvm_mei_get_ownership(struct iwl_mvm *mvm) +{ + if (mvm->mei_registered) + return iwl_mei_get_ownership(); + return 0; +} + +static inline void iwl_mvm_mei_tx_copy_to_csme(struct iwl_mvm *mvm, + struct sk_buff *skb, + unsigned int ivlen) +{ + if (mvm->mei_registered) + iwl_mei_tx_copy_to_csme(skb, ivlen); +} + +static inline void iwl_mvm_mei_host_disassociated(struct iwl_mvm *mvm) +{ + if (mvm->mei_registered) + iwl_mei_host_disassociated(); +} + +static inline void iwl_mvm_mei_device_down(struct iwl_mvm *mvm) +{ + if (mvm->mei_registered) + iwl_mei_device_down(); +} + +static inline void iwl_mvm_mei_set_sw_rfkill_state(struct iwl_mvm *mvm, bool sw_rfkill) +{ + if (mvm->mei_registered) + iwl_mei_set_rfkill_state(iwl_mvm_is_radio_killed(mvm), sw_rfkill); +} + +static inline void iwl_mvm_send_roaming_forbidden_event(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool forbidden) +{ + /* TODO */ +} + #endif /* __IWL_MVM_H__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 232ad531d612..82fea029d4d0 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -683,13 +683,42 @@ static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) { + struct iwl_trans *trans = mvm->trans; int ret; + if (trans->csme_own) { + if (WARN(!mvm->mei_registered, + "csme is owner, but we aren't registered to iwlmei\n")) + goto get_nvm_from_fw; + + mvm->mei_nvm_data = iwl_mei_get_nvm(); + if (mvm->mei_nvm_data) { + /* + * mvm->mei_nvm_data is set and because of that, + * we'll load the NVM from the FW when we'll get + * ownership. + */ + mvm->nvm_data = + iwl_parse_mei_nvm_data(trans, trans->cfg, + mvm->mei_nvm_data, mvm->fw); + return 0; + } + + IWL_ERR(mvm, + "Got a NULL NVM from CSME, trying to get it from the device\n"); + } + +get_nvm_from_fw: rtnl_lock(); mutex_lock(&mvm->mutex); - ret = iwl_run_init_mvm_ucode(mvm); + ret = iwl_trans_start_hw(mvm->trans); + if (ret) { + mutex_unlock(&mvm->mutex); + return ret; + } + ret = iwl_run_init_mvm_ucode(mvm); if (ret && ret != -ERFKILL) iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); if (!ret && iwl_mvm_is_lar_supported(mvm)) { @@ -703,7 +732,7 @@ static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) mutex_unlock(&mvm->mutex); rtnl_unlock(); - if (ret < 0) + if (ret) IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); return ret; @@ -711,6 +740,7 @@ static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) { + struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; int ret; iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); @@ -718,10 +748,14 @@ static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) ret = iwl_mvm_mac_setup_register(mvm); if (ret) return ret; + mvm->hw_registered = true; iwl_mvm_dbgfs_register(mvm); + wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, + mvm->mei_rfkill_blocked, + RFKILL_HARD_BLOCK_NOT_OWNER); return 0; } @@ -902,6 +936,109 @@ static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { .frob_mem = iwl_mvm_frob_mem, }; +static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) +{ + struct iwl_mvm *mvm = priv; + struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; + + /* + * This is protected by the guarantee that this function will not be + * called twice on two different threads + */ + prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); + + curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); + if (!curr_conn_info) + return; + + curr_conn_info->conn_info = *conn_info; + + rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); + + if (prev_conn_info) + kfree_rcu(prev_conn_info, rcu_head); +} + +static void iwl_mvm_mei_rfkill(void *priv, bool blocked) +{ + struct iwl_mvm *mvm = priv; + + mvm->mei_rfkill_blocked = blocked; + if (!mvm->hw_registered) + return; + + wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, + mvm->mei_rfkill_blocked, + RFKILL_HARD_BLOCK_NOT_OWNER); +} + +static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) +{ + struct iwl_mvm *mvm = priv; + + if (!mvm->hw_registered || !mvm->csme_vif) + return; + + iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); +} + +static void iwl_mvm_sap_connected_wk(struct work_struct *wk) +{ + struct iwl_mvm *mvm = + container_of(wk, struct iwl_mvm, sap_connected_wk); + int ret; + + ret = iwl_mvm_start_get_nvm(mvm); + if (ret) + goto out_free; + + ret = iwl_mvm_start_post_nvm(mvm); + if (ret) + goto out_free; + + return; + +out_free: + IWL_ERR(mvm, "Couldn't get started...\n"); + iwl_mei_start_unregister(); + iwl_mei_unregister_complete(); + iwl_fw_flush_dumps(&mvm->fwrt); + iwl_mvm_thermal_exit(mvm); + iwl_fw_runtime_free(&mvm->fwrt); + iwl_phy_db_free(mvm->phy_db); + kfree(mvm->scan_cmd); + iwl_trans_op_mode_leave(mvm->trans); + kfree(mvm->nvm_data); + kfree(mvm->mei_nvm_data); + + ieee80211_free_hw(mvm->hw); +} + +static void iwl_mvm_mei_sap_connected(void *priv) +{ + struct iwl_mvm *mvm = priv; + + if (!mvm->hw_registered) + schedule_work(&mvm->sap_connected_wk); +} + +static void iwl_mvm_mei_nic_stolen(void *priv) +{ + struct iwl_mvm *mvm = priv; + + rtnl_lock(); + cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); + rtnl_unlock(); +} + +static const struct iwl_mei_ops mei_ops = { + .me_conn_status = iwl_mvm_me_conn_status, + .rfkill = iwl_mvm_mei_rfkill, + .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, + .sap_connected = iwl_mvm_mei_sap_connected, + .nic_stolen = iwl_mvm_mei_nic_stolen, +}; + static struct iwl_op_mode * iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, const struct iwl_fw *fw, struct dentry *dbgfs_dir) @@ -913,9 +1050,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, static const u8 no_reclaim_cmds[] = { TX_CMD, }; - int err, scan_size; + int scan_size; u32 min_backoff; enum iwl_amsdu_size rb_size_default; + struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; /* * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station @@ -1015,6 +1153,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); + INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); @@ -1137,10 +1276,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, IWL_DEBUG_EEPROM(mvm->trans->dev, "working without external nvm file\n"); - err = iwl_trans_start_hw(mvm->trans); - if (err) - goto out_free; - scan_size = iwl_mvm_scan_size(mvm); mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); @@ -1165,8 +1300,14 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, mvm->debugfs_dir = dbgfs_dir; - if (iwl_mvm_start_get_nvm(mvm)) - goto out_thermal_exit; + mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); + + /* + * Get NVM failed, but we are registered to MEI, we'll get + * the NVM later when it'll be possible to get it from CSME. + */ + if (iwl_mvm_start_get_nvm(mvm) && mvm->mei_registered) + return op_mode; if (iwl_mvm_start_post_nvm(mvm)) goto out_thermal_exit; @@ -1175,6 +1316,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, out_thermal_exit: iwl_mvm_thermal_exit(mvm); + if (mvm->mei_registered) { + iwl_mei_start_unregister(); + iwl_mei_unregister_complete(); + } out_free: iwl_fw_flush_dumps(&mvm->fwrt); iwl_fw_runtime_free(&mvm->fwrt); @@ -1201,6 +1346,7 @@ void iwl_mvm_stop_device(struct iwl_mvm *mvm) iwl_trans_stop_device(mvm->trans); iwl_free_fw_paging(&mvm->fwrt); iwl_fw_dump_conf_clear(&mvm->fwrt); + iwl_mvm_mei_device_down(mvm); } static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) @@ -1208,11 +1354,33 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); int i; + if (mvm->mei_registered) { + rtnl_lock(); + iwl_mei_set_netdev(NULL); + rtnl_unlock(); + iwl_mei_start_unregister(); + } + + /* + * After we unregister from mei, the worker can't be scheduled + * anymore. + */ + cancel_work_sync(&mvm->sap_connected_wk); + iwl_mvm_leds_exit(mvm); iwl_mvm_thermal_exit(mvm); - ieee80211_unregister_hw(mvm->hw); + /* + * If we couldn't get ownership on the device and we couldn't + * get the NVM from CSME, we haven't registered to mac80211. + * In that case, we didn't fail op_mode_start, because we are + * waiting for CSME to allow us to get the NVM to register to + * mac80211. If that didn't happen, we haven't registered to + * mac80211, hence the if below. + */ + if (mvm->hw_registered) + ieee80211_unregister_hw(mvm->hw); kfree(mvm->scan_cmd); kfree(mvm->mcast_filter_cmd); @@ -1227,6 +1395,9 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) mvm->phy_db = NULL; kfree(mvm->nvm_data); + kfree(mvm->mei_nvm_data); + kfree(rcu_access_pointer(mvm->csme_conn_info)); + kfree(mvm->temp_nvm_data); for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) kfree(mvm->nvm_sections[i].data); @@ -1235,6 +1406,9 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) iwl_fw_runtime_free(&mvm->fwrt); mutex_destroy(&mvm->mutex); + if (mvm->mei_registered) + iwl_mei_unregister_complete(); + ieee80211_free_hw(mvm->hw); } @@ -1517,6 +1691,12 @@ void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) iwl_mvm_set_rfkill_state(mvm); } +struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) +{ + return rcu_dereference_protected(mvm->csme_conn_info, + lockdep_is_held(&mvm->mutex)); +} + static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h index 32b4d1935788..e34b82b2a288 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2012-2014, 2018-2020 Intel Corporation + * Copyright (C) 2012-2014, 2018-2021 Intel Corporation * Copyright (C) 2013-2014 Intel Mobile Communications GmbH * Copyright (C) 2015-2016 Intel Deutschland GmbH */ @@ -373,6 +373,7 @@ struct iwl_mvm_rxq_dup_data { * @tx_ant: the index of the antenna to use for data tx to this station. Only * used during connection establishment (e.g. for the 4 way handshake * exchange). + * @pairwise_cipher: used to feed iwlmei upon authorization * * When mac80211 creates a station it reserves some space (hw->sta_data_size) * in the structure for use by driver. This structure is placed in that @@ -415,6 +416,7 @@ struct iwl_mvm_sta { u8 sleep_tx_count; u8 avg_energy; u8 tx_ant; + u32 pairwise_cipher; }; u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index bdd4ee432548..1883d98abb2f 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2012-2014, 2018-2020 Intel Corporation + * Copyright (C) 2012-2014, 2018-2021 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -1128,6 +1128,11 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, /* From now on, we cannot access info->control */ iwl_mvm_skb_prepare_status(skb, dev_cmd); + if (ieee80211_is_data(fc)) + iwl_mvm_mei_tx_copy_to_csme(mvm, skb, + info->control.hw_key ? + info->control.hw_key->iv_len : 0); + if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id)) goto drop_unlock_sta; diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c index c574f041f096..5c56da36fc84 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c @@ -1422,15 +1422,18 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * first trying to load the firmware etc. and potentially only * detecting any problems when the first interface is brought up. */ - ret = iwl_finish_nic_init(iwl_trans); - if (ret) - goto out_free_trans; - if (iwl_trans_grab_nic_access(iwl_trans)) { - /* all good */ - iwl_trans_release_nic_access(iwl_trans); - } else { - ret = -EIO; - goto out_free_trans; + ret = iwl_pcie_prepare_card_hw(iwl_trans); + if (!ret) { + ret = iwl_finish_nic_init(iwl_trans); + if (ret) + goto out_free_trans; + if (iwl_trans_grab_nic_access(iwl_trans)) { + /* all good */ + iwl_trans_release_nic_access(iwl_trans); + } else { + ret = -EIO; + goto out_free_trans; + } } iwl_trans->hw_rf_id = iwl_read32(iwl_trans, CSR_HW_RF_ID); @@ -1563,6 +1566,10 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_free_trans; pci_set_drvdata(pdev, iwl_trans); + + /* try to get ownership so that we'll know if we don't own it */ + iwl_pcie_prepare_card_hw(iwl_trans); + iwl_trans->drv = iwl_drv_start(iwl_trans); if (IS_ERR(iwl_trans->drv)) { diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index 1efb53f78a62..451b28de1392 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -24,6 +24,7 @@ #include "fw/error-dump.h" #include "fw/dbg.h" #include "fw/api/tx.h" +#include "mei/iwl-mei.h" #include "internal.h" #include "iwl-fh.h" #include "iwl-context-info-gen3.h" @@ -594,8 +595,10 @@ int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) ret = iwl_pcie_set_hw_ready(trans); /* If the card is ready, exit 0 */ - if (ret >= 0) + if (ret >= 0) { + trans->csme_own = false; return 0; + } iwl_set_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG, CSR_RESET_LINK_PWR_MGMT_DISABLED); @@ -608,8 +611,22 @@ int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) do { ret = iwl_pcie_set_hw_ready(trans); - if (ret >= 0) + if (ret >= 0) { + trans->csme_own = false; return 0; + } + + if (iwl_mei_is_connected()) { + IWL_DEBUG_INFO(trans, + "Couldn't prepare the card but SAP is connected\n"); + trans->csme_own = true; + if (trans->trans_cfg->device_family != + IWL_DEVICE_FAMILY_9000) + IWL_ERR(trans, + "SAP not supported for this NIC family\n"); + + return -EBUSY; + } usleep_range(200, 1000); t += 200; |