From patchwork Fri Aug 20 11:03:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 501271 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B263CC432BE for ; Fri, 20 Aug 2021 11:03:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99D6760FDC for ; Fri, 20 Aug 2021 11:03:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239343AbhHTLEY (ORCPT ); Fri, 20 Aug 2021 07:04:24 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:57558 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S239333AbhHTLEJ (ORCPT ); Fri, 20 Aug 2021 07:04:09 -0400 Received: from 91-156-6-193.elisa-laajakaista.fi ([91.156.6.193] helo=kveik.lan) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1mH2J5-002IL4-RS; Fri, 20 Aug 2021 14:03:29 +0300 From: Luca Coelho To: kvalo@codeaurora.org Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Fri, 20 Aug 2021 14:03:14 +0300 Message-Id: X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210820110318.260751-1-luca@coelho.fi> References: <20210820110318.260751-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 08/12] iwlwifi: export DHC framework and add first public entry, twt_setup Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Luca Coelho Export the debug host command framework and add the twt_setup entry. This will allow external parties to use these debugging features. More entries can be added later on. Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/Kconfig | 6 + .../wireless/intel/iwlwifi/fw/api/commands.h | 5 + .../net/wireless/intel/iwlwifi/fw/api/dhc.h | 122 ++++++++++++++++++ .../wireless/intel/iwlwifi/mvm/debugfs-vif.c | 87 +++++++++++++ .../net/wireless/intel/iwlwifi/mvm/fw-api.h | 3 +- drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 1 + 6 files changed, 223 insertions(+), 1 deletion(-) create mode 100644 drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig b/drivers/net/wireless/intel/iwlwifi/Kconfig index 1085afbefba8..0b2c6c945bc0 100644 --- a/drivers/net/wireless/intel/iwlwifi/Kconfig +++ b/drivers/net/wireless/intel/iwlwifi/Kconfig @@ -92,6 +92,12 @@ config IWLWIFI_BCAST_FILTERING If unsure, don't enable this option, as some programs might expect incoming broadcasts for their normal operations. +config IWLWIFI_DHC + bool "Enable debug host commands" + help + This option enables the debug host command API. It's used + for debugging and validation purposes. + menu "Debugging Options" config IWLWIFI_DEBUG diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h index ee6b5844a871..b07e75be8679 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h @@ -495,6 +495,11 @@ enum iwl_legacy_cmds { */ DTS_MEASUREMENT_NOTIFICATION = 0xdd, + /** + * @DEBUG_HOST_COMMAND: &struct iwl_dhc_cmd + */ + DEBUG_HOST_COMMAND = 0xf1, + /** * @LDBG_CONFIG_CMD: configure continuous trace recording */ diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h new file mode 100644 index 000000000000..3ffc5904056f --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h @@ -0,0 +1,122 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2016-2017 Intel Deutschland GmbH + * Copyright (C) 2018-2021 Intel Corporation + */ +#ifndef __iwl_fw_api_dhc_h__ +#define __iwl_fw_api_dhc_h__ + +#define DHC_TABLE_MASK_POS (28) + +/** + * enum iwl_dhc_table_id - DHC table operations index + */ +enum iwl_dhc_table_id { + /* @DHC_TABLE_INTEGRATION: select the integration table */ + DHC_TABLE_INTEGRATION = 2 << DHC_TABLE_MASK_POS, +}; + +/** + * enum iwl_dhc_umac_integration_table - integration operations + */ +enum iwl_dhc_umac_integration_table { + /* @DHC_INT_UMAC_TWT_OPERATION: trigger a TWT operation */ + DHC_INT_UMAC_TWT_OPERATION = 4, + /* @DHC_INTEGRATION_MAX: Maximum UMAC integration table entries */ + DHC_INTEGRATION_MAX +}; + +#define DHC_TARGET_UMAC BIT(27) +#define DHC_ADWELL_SCAN_CHANNEL_DWELL_INDEX 2 +#define DHC_ADWELL_SCAN_FINE_TUNE_INDEX 3 + +/** + * struct iwl_dhc_cmd - debug host command + * @length: length in DWs of the data structure that is concatenated to the end + * of this struct + * @index_and_mask: bit 31 is 1 for data set operation else it's 0 + * bits 28-30 is the index of the table of the operation - + * &enum iwl_dhc_table_id * + * bit 27 is 0 if the cmd targeted to LMAC and 1 if targeted to UMAC, + * (LMAC is 0 for backward compatibility) + * bit 26 is 0 if the cmd targeted to LMAC0 and 1 if targeted to LMAC1, + * relevant only if bit 27 set to 0 + * bits 0-25 is a specific entry index in the table specified in bits 28-30 + * + * @data: the concatenated data. + */ +struct iwl_dhc_cmd { + __le32 length; + __le32 index_and_mask; + __le32 data[0]; +} __packed; /* DHC_CMD_API_S */ + +/** + * enum iwl_dhc_twt_operation_type - describes the TWT operation type + * + * @DHC_TWT_REQUEST: Send a Request TWT command + * @DHC_TWT_SUGGEST: Send a Suggest TWT command + * @DHC_TWT_DEMAND: Send a Demand TWT command + * @DHC_TWT_GROUPING: Send a Grouping TWT command + * @DHC_TWT_ACCEPT: Send a Accept TWT command + * @DHC_TWT_ALTERNATE: Send a Alternate TWT command + * @DHC_TWT_DICTATE: Send a Dictate TWT command + * @DHC_TWT_REJECT: Send a Reject TWT command + * @DHC_TWT_TEARDOWN: Send a TearDown TWT command + */ +enum iwl_dhc_twt_operation_type { + DHC_TWT_REQUEST, + DHC_TWT_SUGGEST, + DHC_TWT_DEMAND, + DHC_TWT_GROUPING, + DHC_TWT_ACCEPT, + DHC_TWT_ALTERNATE, + DHC_TWT_DICTATE, + DHC_TWT_REJECT, + DHC_TWT_TEARDOWN, +}; /* DHC_TWT_OPERATION_TYPE_E */ + +/** + * struct iwl_dhc_twt_operation - trigger a TWT operation + * + * @mac_id: the mac Id on which to trigger TWT operation + * @twt_operation: see &enum iwl_dhc_twt_operation_type + * @target_wake_time: when should we be on channel + * @interval_exp: the exponent for the interval + * @interval_mantissa: the mantissa for the interval + * @min_wake_duration: the minimum duration for the wake period + * @trigger: is the TWT triggered or not + * @flow_type: is the TWT announced or not + * @flow_id: the TWT flow identifier from 0 to 7 + * @protection: is the TWT protected + * @ndo_paging_indicator: is ndo_paging_indicator set + * @responder_pm_mode: is responder_pm_mode set + * @negotiation_type: if the responder wants to doze outside the TWT SP + * @twt_request: 1 for TWT request, 0 otherwise + * @implicit: is TWT implicit + * @twt_group_assignment: the TWT group assignment + * @twt_channel: the TWT channel + * @reserved: reserved + */ +struct iwl_dhc_twt_operation { + __le32 mac_id; + __le32 twt_operation; + __le64 target_wake_time; + __le32 interval_exp; + __le32 interval_mantissa; + __le32 min_wake_duration; + u8 trigger; + u8 flow_type; + u8 flow_id; + u8 protection; + u8 ndo_paging_indicator; + u8 responder_pm_mode; + u8 negotiation_type; + u8 twt_request; + u8 implicit; + u8 twt_group_assignment; + u8 twt_channel; + u8 reserved; +}; /* DHC_TWT_OPERATION_API_S */ + +#endif /* __iwl_fw_api_dhc_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c index 7d9faeffd154..4ddd18ae5f86 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c @@ -686,6 +686,86 @@ static ssize_t iwl_dbgfs_quota_min_read(struct file *file, return simple_read_from_buffer(user_buf, count, ppos, buf, len); } +#ifdef CONFIG_IWLWIFI_DHC +static ssize_t iwl_dbgfs_twt_setup_write(struct ieee80211_vif *vif, char *buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + struct iwl_dhc_twt_operation *dhc_twt_cmd; + struct iwl_dhc_cmd *cmd; + + u32 twt_operation; + u64 target_wake_time; + u32 interval_exp; + u32 interval_mantissa; + u32 min_wake_duration; + u8 trigger; + u8 flow_type; + u8 flow_id; + u8 protection; + u8 twt_request = 1; + u8 broadcast = 0; + u8 tenth_param; + int ret; + + ret = sscanf(buf, "%u %llu %u %u %u %hhu %hhu %hhu %hhu %hhu", + &twt_operation, &target_wake_time, &interval_exp, + &interval_mantissa, &min_wake_duration, &trigger, + &flow_type, &flow_id, &protection, &tenth_param); + + // the new twt_request parameter is optional for station + if ((ret != 9 && ret != 10) || + (vif->type != NL80211_IFTYPE_STATION && tenth_param == 1)) + return -EINVAL; + + /* + * The 10th parameter: + * In STA mode - the TWT type (broadcast or individual) + * In AP mode - the role (0 responder, 1 requester, 2 unsolicited) + */ + if (ret == 10) { + if (vif->type == NL80211_IFTYPE_STATION) + broadcast = tenth_param; + else + twt_request = tenth_param; + } + + cmd = kzalloc(sizeof(*cmd) + sizeof(*dhc_twt_cmd), GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + dhc_twt_cmd = (void *)cmd->data; + dhc_twt_cmd->mac_id = cpu_to_le32(mvmvif->id); + dhc_twt_cmd->twt_operation = cpu_to_le32(twt_operation); + dhc_twt_cmd->target_wake_time = cpu_to_le64(target_wake_time); + dhc_twt_cmd->interval_exp = cpu_to_le32(interval_exp); + dhc_twt_cmd->interval_mantissa = cpu_to_le32(interval_mantissa); + dhc_twt_cmd->min_wake_duration = cpu_to_le32(min_wake_duration); + dhc_twt_cmd->trigger = trigger; + dhc_twt_cmd->flow_type = flow_type; + dhc_twt_cmd->flow_id = flow_id; + dhc_twt_cmd->protection = protection; + dhc_twt_cmd->twt_request = twt_request; + dhc_twt_cmd->negotiation_type = broadcast ? 3 : 0; + + cmd->length = cpu_to_le32(sizeof(*dhc_twt_cmd) >> 2); + cmd->index_and_mask = + cpu_to_le32(DHC_TABLE_INTEGRATION | DHC_TARGET_UMAC | + DHC_INT_UMAC_TWT_OPERATION); + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(DEBUG_HOST_COMMAND, + IWL_ALWAYS_LONG_GROUP, 0), + 0, sizeof(*cmd) + sizeof(*dhc_twt_cmd), + cmd); + mutex_unlock(&mvm->mutex); + kfree(cmd); + + return ret ?: count; +} +#endif + #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ @@ -705,6 +785,9 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20); MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10); MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32); MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff); +#ifdef CONFIG_IWLWIFI_DHC +MVM_DEBUGFS_WRITE_FILE_OPS(twt_setup, 256); +#endif void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) @@ -745,6 +828,10 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) mvmvif == mvm->bf_allowed_vif) MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, 0600); +#ifdef CONFIG_IWLWIFI_DHC + MVM_DEBUGFS_ADD_FILE_VIF(twt_setup, mvmvif->dbgfs_dir, S_IWUSR); +#endif + /* * Create symlink for convenience pointing to interface specific * debugfs entries for the driver. For example, under diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h index 73a82f07dc59..aa18d802de8e 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.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, 2020-2021 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -37,5 +37,6 @@ #include "fw/api/location.h" #include "fw/api/tx.h" #include "fw/api/rfi.h" +#include "fw/api/dhc.h" #endif /* __fw_api_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 6f60018feed1..51eb52003cb1 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -493,6 +493,7 @@ static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { HCMD_NAME(SCAN_ITERATION_COMPLETE), HCMD_NAME(D0I3_END_CMD), HCMD_NAME(LTR_CONFIG), + HCMD_NAME(DEBUG_HOST_COMMAND), HCMD_NAME(LDBG_CONFIG_CMD), };