From patchwork Mon Mar 20 10:33:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Greenman, Gregory" X-Patchwork-Id: 665864 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 BB68CC6FD1D for ; Mon, 20 Mar 2023 10:37:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230344AbjCTKhA (ORCPT ); Mon, 20 Mar 2023 06:37:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230194AbjCTKgf (ORCPT ); Mon, 20 Mar 2023 06:36:35 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB81625E10 for ; Mon, 20 Mar 2023 03:35:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679308553; x=1710844553; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=DwY5FKol3zVbv0kaLBIiPqBDdPTFoxmrCCC0gbPkn/U=; b=KVFeVNcFSoE1wGNLvx+r+Q63xHhBTg7WZYXnmDZbD01ZgjztwdIk7xRa EFldQ6kx/oxDjyCJY2cSUe4CD52UQj/9YLbGNkp5Wy1s9h+V0rZzdhvUu zxHJDimobU7LITtHwZ+BNQAhT0HUme2QtZmuZtzze83pe+ozeghHrgyWb t7s3ykmpbimCFlkmwol2EbOAnT2jam/99KrMVcbACuk+1NyM7qno/TSaz O44CT19CT4cjzUpzB88ZV92zAtTbtcFn5ArVV3X4r/O7awsPbqo/vQRx7 9tKuMYNcJSPRr8ePken9kDR5QozUJIjWp+JsezRQxcymp24WTeD7jZZ0s A==; X-IronPort-AV: E=McAfee;i="6600,9927,10654"; a="326997965" X-IronPort-AV: E=Sophos;i="5.98,274,1673942400"; d="scan'208";a="326997965" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Mar 2023 03:34:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10654"; a="713523712" X-IronPort-AV: E=Sophos;i="5.98,274,1673942400"; d="scan'208";a="713523712" Received: from ranikhou-mobl3.ger.corp.intel.com (HELO ggreenma-mobl2.intel.com) ([10.251.179.26]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Mar 2023 03:34:15 -0700 From: gregory.greenman@intel.com To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Abhishek Naik , Gregory Greenman Subject: [PATCH 18/18] iwlwifi: mvm: Add debugfs to get TAS status Date: Mon, 20 Mar 2023 12:33:19 +0200 Message-Id: <20230320122330.8efc8c41efae.I94e1a6efb9c33e2cdbcf4bf3ed2384005397dee9@changeid> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230320103319.1309442-1-gregory.greenman@intel.com> References: <20230320103319.1309442-1-gregory.greenman@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Abhishek Naik Add debugfs file in mvm to retrieve TAS status per LMAC, TAS block list, current mcc, OEM name and OEM allowed list. Signed-off-by: Abhishek Naik Signed-off-by: Gregory Greenman --- .../net/wireless/intel/iwlwifi/fw/api/debug.h | 96 +++++++++ .../net/wireless/intel/iwlwifi/mvm/debugfs.c | 190 +++++++++++++++++- drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 10 + drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 2 +- 4 files changed, 296 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h b/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h index 0c555089e05f..8fef38139bf6 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h @@ -42,6 +42,12 @@ enum iwl_debug_cmds { * &struct iwl_buf_alloc_cmd */ BUFFER_ALLOCATION = 0x8, + /** + * @GET_TAS_STATUS: + * sends command to fw to get TAS status + * the response is &struct iwl_mvm_tas_status_resp + */ + GET_TAS_STATUS = 0xA, /** * @FW_DUMP_COMPLETE_CMD: * sends command to fw once dump collection completed @@ -421,4 +427,94 @@ struct iwl_dbg_dump_complete_cmd { __le32 tp_data; } __packed; /* FW_DUMP_COMPLETE_CMD_API_S_VER_1 */ +#define TAS_LMAC_BAND_HB 0 +#define TAS_LMAC_BAND_LB 1 +#define TAS_LMAC_BAND_UHB 2 +#define TAS_LMAC_BAND_INVALID 3 + +/** + * struct iwl_mvm_tas_status_per_mac - tas status per lmac + * @static_status: tas statically enabled or disabled per lmac - TRUE/FALSE + * @static_dis_reason: TAS static disable reason, uses + * &enum iwl_mvm_tas_statically_disabled_reason + * @dynamic_status: Current TAS status. uses + * &enum iwl_mvm_tas_dyna_status + * @near_disconnection: is TAS currently near disconnection per lmac? - TRUE/FALSE + * @max_reg_pwr_limit: Regulatory power limits in dBm + * @sar_limit: SAR limits per lmac in dBm + * @band: Band per lmac + * @reserved: reserved + */ +struct iwl_mvm_tas_status_per_mac { + u8 static_status; + u8 static_dis_reason; + u8 dynamic_status; + u8 near_disconnection; + __le16 max_reg_pwr_limit; + __le16 sar_limit; + u8 band; + u8 reserved[3]; +} __packed; /*DEBUG_GET_TAS_STATUS_PER_MAC_S_VER_1*/ + +/** + * struct iwl_mvm_tas_status_resp - Response to GET_TAS_STATUS + * @tas_fw_version: TAS FW version + * @is_uhb_for_usa_enable: is UHB enabled in USA? - TRUE/FALSE + * @curr_mcc: current mcc + * @block_list: country block list + * @tas_status_mac: TAS status per lmac, uses + * &struct iwl_mvm_tas_status_per_mac + * @in_dual_radio: is TAS in dual radio? - TRUE/FALSE + * @reserved: reserved + */ +struct iwl_mvm_tas_status_resp { + u8 tas_fw_version; + u8 is_uhb_for_usa_enable; + __le16 curr_mcc; + __le16 block_list[16]; + struct iwl_mvm_tas_status_per_mac tas_status_mac[2]; + u8 in_dual_radio; + u8 reserved[3]; +} __packed; /*DEBUG_GET_TAS_STATUS_RSP_API_S_VER_3*/ + +/** + * enum iwl_mvm_tas_dyna_status - TAS current running status + * @TAS_DYNA_INACTIVE: TAS status is inactive + * @TAS_DYNA_INACTIVE_MVM_MODE: TAS is disabled due because FW is in MVM mode + * or is in softap mode. + * @TAS_DYNA_INACTIVE_TRIGGER_MODE: TAS is disabled because FW is in + * multi user trigger mode + * @TAS_DYNA_INACTIVE_BLOCK_LISTED: TAS is disabled because current mcc + * is blocklisted mcc + * @TAS_DYNA_INACTIVE_UHB_NON_US: TAS is disabled because current band is UHB + * and current mcc is USA + * @TAS_DYNA_ACTIVE: TAS is currently active + * @TAS_DYNA_STATUS_MAX: TAS status max value + */ +enum iwl_mvm_tas_dyna_status { + TAS_DYNA_INACTIVE, + TAS_DYNA_INACTIVE_MVM_MODE, + TAS_DYNA_INACTIVE_TRIGGER_MODE, + TAS_DYNA_INACTIVE_BLOCK_LISTED, + TAS_DYNA_INACTIVE_UHB_NON_US, + TAS_DYNA_ACTIVE, + + TAS_DYNA_STATUS_MAX, +}; /*_TAS_DYNA_STATUS_E*/ + +/** + * enum iwl_mvm_tas_statically_disabled_reason - TAS statically disabled reason + * @TAS_DISABLED_DUE_TO_BIOS: TAS is disabled because TAS is disabled in BIOS + * @TAS_DISABLED_DUE_TO_SAR_6DBM: TAS is disabled because SAR limit is less than 6 Dbm + * @TAS_DISABLED_REASON_INVALID: TAS disable reason is invalid + * @TAS_DISABLED_REASON_MAX: TAS disable reason max value + */ +enum iwl_mvm_tas_statically_disabled_reason { + TAS_DISABLED_DUE_TO_BIOS, + TAS_DISABLED_DUE_TO_SAR_6DBM, + TAS_DISABLED_REASON_INVALID, + + TAS_DISABLED_REASON_MAX, +}; /*_TAS_STATICALLY_DISABLED_REASON_E*/ + #endif /* __iwl_fw_api_debug_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 5790435dc69e..2a6f42f07c9e 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2012-2014, 2018-2022 Intel Corporation + * Copyright (C) 2012-2014, 2018-2023 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -8,6 +8,7 @@ #include #include #include +#include #include "mvm.h" #include "sta.h" @@ -15,6 +16,7 @@ #include "debugfs.h" #include "iwl-modparams.h" #include "fw/error-dump.h" +#include "fw/api/phy-ctxt.h" static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, char __user *user_buf, @@ -714,6 +716,190 @@ static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, return ret; } +static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + struct iwl_mvm_tas_status_resp tas_rsp; + struct iwl_mvm_tas_status_resp *rsp = &tas_rsp; + static const size_t bufsz = 1024; + char *buff, *pos, *endpos; + const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = { + [TAS_DISABLED_DUE_TO_BIOS] = + "Due To BIOS", + [TAS_DISABLED_DUE_TO_SAR_6DBM] = + "Due To SAR Limit Less Than 6 dBm", + [TAS_DISABLED_REASON_INVALID] = + "N/A", + }; + const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = { + [TAS_DYNA_INACTIVE] = "INACTIVE", + [TAS_DYNA_INACTIVE_MVM_MODE] = + "inactive due to mvm mode", + [TAS_DYNA_INACTIVE_TRIGGER_MODE] = + "inactive due to trigger mode", + [TAS_DYNA_INACTIVE_BLOCK_LISTED] = + "inactive due to block listed", + [TAS_DYNA_INACTIVE_UHB_NON_US] = + "inactive due to uhb non US", + [TAS_DYNA_ACTIVE] = "ACTIVE", + }; + struct iwl_host_cmd hcmd = { + .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS), + .flags = CMD_WANT_SKB, + .len = { 0, }, + .data = { NULL, }, + }; + int ret, i, tmp; + bool tas_enabled = false; + unsigned long dyn_status; + + if (!iwl_mvm_firmware_running(mvm)) + return -ENODEV; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd(mvm, &hcmd); + mutex_unlock(&mvm->mutex); + if (ret < 0) + return ret; + + buff = kzalloc(bufsz, GFP_KERNEL); + if (!buff) + return -ENOMEM; + pos = buff; + endpos = pos + bufsz; + + rsp = (void *)hcmd.resp_pkt->data; + + pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n"); + for (i = 0; i < rsp->in_dual_radio + 1; i++) { + if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID && + rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) { + pos += scnprintf(pos, endpos - pos, "\tON for "); + switch (rsp->tas_status_mac[i].band) { + case TAS_LMAC_BAND_HB: + pos += scnprintf(pos, endpos - pos, "HB\n"); + break; + case TAS_LMAC_BAND_LB: + pos += scnprintf(pos, endpos - pos, "LB\n"); + break; + case TAS_LMAC_BAND_UHB: + pos += scnprintf(pos, endpos - pos, "UHB\n"); + break; + case TAS_LMAC_BAND_INVALID: + pos += scnprintf(pos, endpos - pos, + "INVALID BAND\n"); + break; + default: + pos += scnprintf(pos, endpos - pos, + "Unsupported band (%d)\n", + rsp->tas_status_mac[i].band); + goto out; + } + tas_enabled = true; + } + } + if (!tas_enabled) + pos += scnprintf(pos, endpos - pos, "\tOFF\n"); + + pos += scnprintf(pos, endpos - pos, "TAS Report\n"); + pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n", + rsp->tas_fw_version); + pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n", + rsp->is_uhb_for_usa_enable ? "True" : "False"); + pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n", + le16_to_cpu(rsp->curr_mcc)); + + pos += scnprintf(pos, endpos - pos, "Block list entries:"); + for (i = 0; i < APCI_WTAS_BLACK_LIST_MAX; i++) + pos += scnprintf(pos, endpos - pos, " 0x%x", + le16_to_cpu(rsp->block_list[i])); + + pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n", + dmi_get_system_info(DMI_SYS_VENDOR)); + pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n", + iwl_mvm_is_vendor_in_approved_list() ? "YES" : "NO"); + pos += scnprintf(pos, endpos - pos, + "\tDo TAS Support Dual Radio?: %s\n", + rsp->in_dual_radio ? "TRUE" : "FALSE"); + + for (i = 0; i < rsp->in_dual_radio + 1; i++) { + if (rsp->tas_status_mac[i].static_status == 0) { + pos += scnprintf(pos, endpos - pos, + "Static status: disabled\n"); + pos += scnprintf(pos, endpos - pos, + "Static disabled reason: %s (0)\n", + tas_dis_reason[0]); + goto out; + } + + pos += scnprintf(pos, endpos - pos, "TAS status for "); + switch (rsp->tas_status_mac[i].band) { + case TAS_LMAC_BAND_HB: + pos += scnprintf(pos, endpos - pos, "High band\n"); + break; + case TAS_LMAC_BAND_LB: + pos += scnprintf(pos, endpos - pos, "Low band\n"); + break; + case TAS_LMAC_BAND_UHB: + pos += scnprintf(pos, endpos - pos, + "Ultra high band\n"); + break; + case TAS_LMAC_BAND_INVALID: + pos += scnprintf(pos, endpos - pos, + "INVALID band\n"); + break; + default: + pos += scnprintf(pos, endpos - pos, + "Unsupported band (%d)\n", + rsp->tas_status_mac[i].band); + goto out; + } + pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n", + rsp->tas_status_mac[i].static_status ? + "En" : "Dis"); + pos += scnprintf(pos, endpos - pos, + "\tStatic Disabled Reason: "); + if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX) + pos += scnprintf(pos, endpos - pos, "%s (%d)\n", + tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason], + rsp->tas_status_mac[i].static_dis_reason); + else + pos += scnprintf(pos, endpos - pos, + "unsupported value (%d)\n", + rsp->tas_status_mac[i].static_dis_reason); + + pos += scnprintf(pos, endpos - pos, "Dynamic status:\n"); + dyn_status = (rsp->tas_status_mac[i].dynamic_status); + for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) { + if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX) + pos += scnprintf(pos, endpos - pos, + "\t%s (%d)\n", + tas_current_status[tmp], tmp); + } + + pos += scnprintf(pos, endpos - pos, + "Is near disconnection?: %s\n", + rsp->tas_status_mac[i].near_disconnection ? + "True" : "False"); + tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit); + pos += scnprintf(pos, endpos - pos, + "Max. regulatory pwr limit (dBm): %d.%03d\n", + tmp / 8, 125 * (tmp % 8)); + tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit); + pos += scnprintf(pos, endpos - pos, + "SAR limit (dBm): %d.%03d\n", + tmp / 8, 125 * (tmp % 8)); + } + +out: + ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); + kfree(buff); + iwl_free_resp(&hcmd); + return ret; +} + static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -1685,6 +1871,7 @@ MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); MVM_DEBUGFS_READ_FILE_OPS(fw_ver); MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); +MVM_DEBUGFS_READ_FILE_OPS(tas_get_status); MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); @@ -1894,6 +2081,7 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) if (mvm->fw->phy_integration_ver) MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); + MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400); #ifdef CONFIG_ACPI MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); #endif diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index 05236b09bcdd..6d6fa35c2b21 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -1092,6 +1092,11 @@ static const struct dmi_system_id dmi_tas_approved_list[] = { {} }; +bool iwl_mvm_is_vendor_in_approved_list(void) +{ + return dmi_check_system(dmi_tas_approved_list); +} + static bool iwl_mvm_add_to_tas_block_list(__le32 *list, __le32 *le_size, unsigned int mcc) { int i; @@ -1371,6 +1376,11 @@ static void iwl_mvm_lari_cfg(struct iwl_mvm *mvm) { } +bool iwl_mvm_is_vendor_in_approved_list(void) +{ + return false; +} + static u8 iwl_mvm_eval_dsm_rfi(struct iwl_mvm *mvm) { return DSM_VALUE_RFI_DISABLE; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index a03c2e5bbc25..cea94250d197 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -2343,5 +2343,5 @@ static inline void iwl_mvm_mei_set_sw_rfkill_state(struct iwl_mvm *mvm) void iwl_mvm_send_roaming_forbidden_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, bool forbidden); - +bool iwl_mvm_is_vendor_in_approved_list(void); #endif /* __IWL_MVM_H__ */