From patchwork Sat Feb 5 09:21:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 12736019 X-Patchwork-Delegate: luca@coelho.fi Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A1C5C433EF for ; Sat, 5 Feb 2022 09:21:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344666AbiBEJVs (ORCPT ); Sat, 5 Feb 2022 04:21:48 -0500 Received: from paleale.coelho.fi ([176.9.41.70]:37986 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1343667AbiBEJVr (ORCPT ); Sat, 5 Feb 2022 04:21:47 -0500 Received: from 91-156-4-210.elisa-laajakaista.fi ([91.156.4.210] helo=kveik.lan) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1nGHGL-0006b7-4t; Sat, 05 Feb 2022 11:21:46 +0200 From: Luca Coelho To: kvalo@kernel.org Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Sat, 5 Feb 2022 11:21:31 +0200 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220205092140.751171-1-luca@coelho.fi> References: <20220205092140.751171-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 03/12] iwlwifi: mvm: rfi: handle deactivation notification Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Gregory Greenman Sometimes RFIm can be deactivated in FW due to internal errors. In this case, FW will send a notification to the driver about that. Add a log message in this case since FW logs are not always available. Signed-off-by: Gregory Greenman Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/api/commands.h | 5 +++++ drivers/net/wireless/intel/iwlwifi/fw/api/rfi.h | 10 +++++++++- drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 2 ++ drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 6 ++++++ drivers/net/wireless/intel/iwlwifi/mvm/rfi.c | 9 +++++++++ 5 files changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h index dded6e8a074a..a91bd66ecb30 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h @@ -605,6 +605,11 @@ enum iwl_system_subcmd_ids { * @SYSTEM_FEATURES_CONTROL_CMD: &struct iwl_system_features_control_cmd */ SYSTEM_FEATURES_CONTROL_CMD = 0xd, + + /** + * @RFI_DEACTIVATE_NOTIF: &struct iwl_rfi_deactivate_notif + */ + RFI_DEACTIVATE_NOTIF = 0xff, }; #endif /* __iwl_fw_api_commands_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rfi.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rfi.h index c678b9aa9b55..1a84a4081e7c 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/rfi.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rfi.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2020 Intel Corporation + * Copyright (C) 2020-2021 Intel Corporation */ #ifndef __iwl_fw_api_rfi_h__ #define __iwl_fw_api_rfi_h__ @@ -57,4 +57,12 @@ struct iwl_rfi_freq_table_resp_cmd { __le32 status; } __packed; /* RFI_CONFIG_CMD_API_S_VER_1 */ +/** + * struct iwl_rfi_deactivate_notif - notifcation that FW disaled RFIm + * + * @reason: used only for a log message + */ +struct iwl_rfi_deactivate_notif { + __le32 reason; +} __packed; /* RFI_DEACTIVATE_NTF_S_VER_1 */ #endif /* __iwl_fw_api_rfi_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 3208a7670505..f6c69a4c1abf 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -2099,6 +2099,8 @@ void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, int iwl_rfi_send_config_cmd(struct iwl_mvm *mvm, struct iwl_rfi_lut_entry *rfi_table); struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm); +void iwl_rfi_deactivate_notif_handler(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb); static inline u8 iwl_mvm_phy_band_from_nl80211(enum nl80211_band band) { diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 5626eb091943..0d187d4fa8c7 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -24,6 +24,7 @@ #include "iwl-prph.h" #include "rs.h" #include "fw/api/scan.h" +#include "fw/api/rfi.h" #include "time-event.h" #include "fw-api.h" #include "fw/acpi.h" @@ -396,6 +397,10 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { iwl_mvm_rx_thermal_dual_chain_req, RX_HANDLER_ASYNC_LOCKED, struct iwl_thermal_dual_chain_request), + + RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, + iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, + struct iwl_rfi_deactivate_notif), }; #undef RX_HANDLER #undef RX_HANDLER_GRP @@ -505,6 +510,7 @@ static const struct iwl_hcmd_names iwl_mvm_system_names[] = { HCMD_NAME(RFI_CONFIG_CMD), HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), + HCMD_NAME(RFI_DEACTIVATE_NOTIF), }; /* Please keep this array *SORTED* by hex value. diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c index f054ce76bed5..7acb2be08e1d 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c @@ -134,3 +134,12 @@ struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm) iwl_free_resp(&cmd); return resp; } + +void iwl_rfi_deactivate_notif_handler(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_rfi_deactivate_notif *notif = (void *)pkt->data; + + IWL_INFO(mvm, "RFIm is deactivated, reason = %d\n", notif->reason); +}