diff options
Diffstat (limited to 'drivers/net/wireless/intel')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h | 34 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 37 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 26 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 20 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.h | 3 |
7 files changed, 125 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h b/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h index d088c820b1a9..712532f17630 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h @@ -27,6 +27,10 @@ enum iwl_mac_conf_subcmd_ids { * @SESSION_PROTECTION_CMD: &struct iwl_mvm_session_prot_cmd */ SESSION_PROTECTION_CMD = 0x5, + /** + * @CANCEL_CHANNEL_SWITCH_CMD: &struct iwl_cancel_channel_switch_cmd + */ + CANCEL_CHANNEL_SWITCH_CMD = 0x6, /** * @SESSION_PROTECTION_NOTIF: &struct iwl_mvm_session_prot_notif @@ -42,6 +46,11 @@ enum iwl_mac_conf_subcmd_ids { * @CHANNEL_SWITCH_START_NOTIF: &struct iwl_channel_switch_start_notif */ CHANNEL_SWITCH_START_NOTIF = 0xFF, + + /** + *@CHANNEL_SWITCH_ERROR_NOTIF: &struct iwl_channel_switch_error_notif + */ + CHANNEL_SWITCH_ERROR_NOTIF = 0xF9, }; #define IWL_P2P_NOA_DESC_COUNT (2) @@ -110,6 +119,31 @@ struct iwl_channel_switch_start_notif { __le32 id_and_color; } __packed; /* CHANNEL_SWITCH_START_NTFY_API_S_VER_1 */ +#define CS_ERR_COUNT_ERROR BIT(0) +#define CS_ERR_LONG_DELAY_AFTER_CS BIT(1) +#define CS_ERR_LONG_TX_BLOCK BIT(2) +#define CS_ERR_TX_BLOCK_TIMER_EXPIRED BIT(3) + +/** + * struct iwl_channel_switch_error_notif - Channel switch error notification + * + * @mac_id: the mac for which the ucode sends the notification for + * @csa_err_mask: mask of channel switch error that can occur + */ +struct iwl_channel_switch_error_notif { + __le32 mac_id; + __le32 csa_err_mask; +} __packed; /* CHANNEL_SWITCH_ERROR_NTFY_API_S_VER_1 */ + +/** + * struct iwl_cancel_channel_switch_cmd - Cancel Channel Switch command + * + * @mac_id: the mac that should cancel the channel switch + */ +struct iwl_cancel_channel_switch_cmd { + __le32 mac_id; +} __packed; /* MAC_CANCEL_CHANNEL_SWITCH_S_VER_1 */ + /** * struct iwl_chan_switch_te_cmd - Channel Switch Time Event command * diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index fd7d4abfb454..bcce3c1c5feb 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -1602,6 +1602,18 @@ void iwl_mvm_channel_switch_start_notif(struct iwl_mvm *mvm, RCU_INIT_POINTER(mvm->csa_vif, NULL); return; case NL80211_IFTYPE_STATION: + /* + * if we don't know about an ongoing channel switch, + * make sure FW cancels it + */ + if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, + CHANNEL_SWITCH_ERROR_NOTIF, + 0) && !vif->csa_active) { + IWL_DEBUG_INFO(mvm, "Channel Switch was canceled\n"); + iwl_mvm_cancel_channel_switch(mvm, vif, mac_id); + break; + } + iwl_mvm_csa_client_absent(mvm, vif); cancel_delayed_work(&mvmvif->csa_work); ieee80211_chswitch_done(vif, true); @@ -1615,6 +1627,31 @@ out_unlock: rcu_read_unlock(); } +void iwl_mvm_channel_switch_error_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_channel_switch_error_notif *notif = (void *)pkt->data; + struct ieee80211_vif *vif; + u32 id = le32_to_cpu(notif->mac_id); + u32 csa_err_mask = le32_to_cpu(notif->csa_err_mask); + + rcu_read_lock(); + vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); + if (!vif) { + rcu_read_unlock(); + return; + } + + IWL_DEBUG_INFO(mvm, "FW reports CSA error: mac_id=%u, csa_err_mask=%u\n", + id, csa_err_mask); + if (csa_err_mask & (CS_ERR_COUNT_ERROR | + CS_ERR_LONG_DELAY_AFTER_CS | + CS_ERR_TX_BLOCK_TIMER_EXPIRED)) + ieee80211_channel_switch_disconnect(vif, true); + rcu_read_unlock(); +} + void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 65f4fe3ef504..8ef572bcc2ab 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1414,6 +1414,15 @@ static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), }; + /* + * In the new flow since FW is in charge of the timing, + * if driver has canceled the channel switch he will receive the + * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it + */ + if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, + CHANNEL_SWITCH_ERROR_NOTIF, 0)) + return; + IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); mutex_lock(&mvm->mutex); @@ -4847,6 +4856,15 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, break; case NL80211_IFTYPE_STATION: /* + * In the new flow FW is in charge of timing the switch so there + * is no need for all of this + */ + if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, + CHANNEL_SWITCH_ERROR_NOTIF, + 0)) + break; + + /* * We haven't configured the firmware to be associated yet since * we don't know the dtim period. In this case, the firmware can't * track the beacons. @@ -4917,6 +4935,14 @@ static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, .cs_mode = chsw->block_tx, }; + /* + * In the new flow FW is in charge of timing the switch so there is no + * need for all of this + */ + if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, + CHANNEL_SWITCH_ERROR_NOTIF, 0)) + return; + if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) return; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 1dcbb0eb63c3..8a0e17adcb56 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1684,6 +1684,8 @@ void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); void iwl_mvm_channel_switch_start_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); +void iwl_mvm_channel_switch_error_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb); /* Bindings */ int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif); int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 5da9d98043fd..f8be52e7e5e7 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -382,6 +382,10 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, iwl_mvm_channel_switch_start_notif, RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), + RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, + iwl_mvm_channel_switch_error_notif, + RX_HANDLER_ASYNC_UNLOCKED, + struct iwl_channel_switch_error_notif), RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_datapath_monitor_notif), diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index da40fd043c0e..d605a3b51a25 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -3940,7 +3940,7 @@ void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); - if (!WARN_ON(!mvmsta)) + if (mvmsta) iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); rcu_read_unlock(); @@ -3999,3 +3999,21 @@ out: iwl_mvm_dealloc_int_sta(mvm, sta); return ret; } + +void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 mac_id) +{ + struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { + .mac_id = cpu_to_le32(mac_id), + }; + int ret; + + ret = iwl_mvm_send_cmd_pdu(mvm, + iwl_cmd_id(CANCEL_CHANNEL_SWITCH_CMD, MAC_CONF_GROUP, 0), + CMD_ASYNC, + sizeof(cancel_channel_switch_cmd), + &cancel_channel_switch_cmd); + if (ret) + IWL_ERR(mvm, "Failed to cancel the channel switch\n"); +} diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h index e34b82b2a288..f1a4fc3e4038 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h @@ -548,4 +548,7 @@ void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk); int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, u8 *key, u32 key_len); +void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 mac_id); #endif /* __sta_h__ */ |