From patchwork Fri Aug 20 11:03:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 12448891 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 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 C0BC5C00143 for ; Fri, 20 Aug 2021 11:03:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AB96C60FDC for ; Fri, 20 Aug 2021 11:03:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239404AbhHTLEX (ORCPT ); Fri, 20 Aug 2021 07:04:23 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:57564 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S239343AbhHTLEK (ORCPT ); Fri, 20 Aug 2021 07:04:10 -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 1mH2J6-002IL4-Tb; Fri, 20 Aug 2021 14:03:30 +0300 From: Luca Coelho To: kvalo@codeaurora.org Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Fri, 20 Aug 2021 14:03:15 +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 09/12] iwlwifi: mvm: add fixed_rate debugfs entry to public DHC Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Luca Coelho Expose the fixed_rate debugfs entry wnen IWLWIFI_DHC_PUBLIC is enabled. Signed-off-by: Luca Coelho --- .../net/wireless/intel/iwlwifi/fw/api/dhc.h | 12 ++++- .../net/wireless/intel/iwlwifi/fw/api/rs.h | 40 ++++++++++++++-- .../net/wireless/intel/iwlwifi/mvm/debugfs.c | 46 +++++++++++++++++++ .../net/wireless/intel/iwlwifi/mvm/rs-fw.c | 33 +++++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/rs.h | 10 ++-- 5 files changed, 130 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h index 3ffc5904056f..481c942db2ec 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h @@ -22,7 +22,17 @@ enum iwl_dhc_table_id { 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_TLC_DEBUG_CONFIG: TLC debug + */ + DHC_INTEGRATION_TLC_DEBUG_CONFIG = 1, + /** + * @DHC_INT_UMAC_TWT_CONTROL: TWT hooks (like disable internal TWT triggers) + */ + DHC_INT_UMAC_TWT_CONTROL = 10, + /** + * @DHC_INTEGRATION_MAX: Maximum UMAC integration table entries + */ DHC_INTEGRATION_MAX }; diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h index fc2fa49e9825..f23766df236b 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.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) 2017 Intel Deutschland GmbH */ #ifndef __iwl_fw_api_rs_h__ @@ -184,8 +184,42 @@ struct iwl_tlc_update_notif { __le32 amsdu_enabled; } __packed; /* TLC_MNG_UPDATE_NTFY_API_S_VER_2 */ -/* - * These serve as indexes into +#ifdef CONFIG_IWLWIFI_DHC +/** + * enum iwl_tlc_debug_types - debug options + */ +enum iwl_tlc_debug_types { + /* @IWL_TLC_DEBUG_FIXED_RATE: set fixed rate for rate scaling */ + IWL_TLC_DEBUG_FIXED_RATE, +}; /* TLC_MNG_DEBUG_TYPES_API_E */ +#endif /* CONFIG_IWLWIFI_DHC */ + +#ifdef CONFIG_IWLWIFI_DHC +#define MAX_DATA_IN_DHC_TLC_CMD 10 + +/** + * struct iwl_dhc_tlc_dbg - fixed debug config + * @sta_id: bit 0 - enable/disable, bits 1 - 7 hold station id + * @reserved1: reserved + * @type: type id of %enum iwl_tlc_debug_types + * @data: data to send + */ +struct iwl_dhc_tlc_cmd { + u8 sta_id; + u8 reserved1[3]; + __le32 type; + __le32 data[MAX_DATA_IN_DHC_TLC_CMD]; +} __packed; /* TLC_MNG_DEBUG_CMD_S */ +#endif /* CONFIG_IWLWIFI_DHC */ + +#define IWL_MAX_MCS_DISPLAY_SIZE 12 + +struct iwl_rate_mcs_info { + char mbps[IWL_MAX_MCS_DISPLAY_SIZE]; + char mcs[IWL_MAX_MCS_DISPLAY_SIZE]; +}; + +/* These serve as indexes into * struct iwl_rate_info fw_rate_idx_to_plcp[IWL_RATE_COUNT]; * TODO: avoid overlap between legacy and HT rates */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 5dc39fbb74d6..86a4dcd21681 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -414,6 +414,46 @@ static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf, return ret; } +#ifdef CONFIG_IWLWIFI_DHC +static void iwl_rs_set_fixed_rate(struct iwl_mvm *mvm, + struct iwl_lq_sta_rs_fw *lq_sta) +{ + int ret = iwl_rs_send_dhc(mvm, lq_sta, + IWL_TLC_DEBUG_FIXED_RATE, + lq_sta->pers.dbg_fixed_rate); + + char pretty_rate[100]; + + if (ret) { + lq_sta->pers.dbg_fixed_rate = 0; + return; + } + + rs_pretty_print_rate(pretty_rate, sizeof(pretty_rate), + lq_sta->pers.dbg_fixed_rate); + IWL_DEBUG_RATE(mvm, "sta_id %d rate %s\n", + lq_sta->pers.sta_id, pretty_rate); +} + +static ssize_t iwl_dbgfs_fixed_rate_write(struct ieee80211_sta *sta, + char *buf, size_t count, + loff_t *ppos) +{ + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; + struct iwl_mvm *mvm = lq_sta->pers.drv; + u32 parsed_rate; + + if (kstrtou32(buf, 0, &parsed_rate)) + lq_sta->pers.dbg_fixed_rate = 0; + else + lq_sta->pers.dbg_fixed_rate = parsed_rate; + + iwl_rs_set_fixed_rate(mvm, lq_sta); + return count; +} +#endif /* CONFIG_IWLWIFI_DHC */ + static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta, char *buf, size_t count, loff_t *ppos) @@ -1889,6 +1929,9 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); #endif +#ifdef CONFIG_IWLWIFI_DHC +MVM_DEBUGFS_WRITE_STA_FILE_OPS(fixed_rate, 64); +#endif MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16); MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); @@ -2037,6 +2080,9 @@ void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, if (iwl_mvm_has_tlc_offload(mvm)) { MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); +#ifdef CONFIG_IWLWIFI_DHC + MVM_DEBUGFS_ADD_STA_FILE(fixed_rate, dir, 0200); +#endif } MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600); } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c index 2d58cb969918..dc12d8890021 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c @@ -359,6 +359,39 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, rcu_read_unlock(); } +#ifdef CONFIG_IWLWIFI_DHC +int iwl_rs_send_dhc(struct iwl_mvm *mvm, struct iwl_lq_sta_rs_fw *lq_sta, + u32 type, u32 data) +{ + int ret; + struct iwl_dhc_cmd *dhc_cmd; + struct iwl_dhc_tlc_cmd *dhc_tlc_cmd; + u32 cmd_id = iwl_cmd_id(DEBUG_HOST_COMMAND, IWL_ALWAYS_LONG_GROUP, 0); + + dhc_cmd = kzalloc(sizeof(*dhc_cmd) + sizeof(*dhc_tlc_cmd), GFP_KERNEL); + if (!dhc_cmd) + return -ENOMEM; + + dhc_tlc_cmd = (void *)dhc_cmd->data; + dhc_tlc_cmd->sta_id = lq_sta->pers.sta_id; + dhc_tlc_cmd->type = cpu_to_le32(type); + dhc_tlc_cmd->data[0] = cpu_to_le32(data); + dhc_cmd->length = cpu_to_le32(sizeof(*dhc_tlc_cmd) >> 2); + dhc_cmd->index_and_mask = + cpu_to_le32(DHC_TABLE_INTEGRATION | DHC_TARGET_UMAC | + DHC_INTEGRATION_TLC_DEBUG_CONFIG); + + ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, CMD_ASYNC, + sizeof(*dhc_cmd) + sizeof(*dhc_tlc_cmd), + dhc_cmd); + if (ret) + IWL_ERR(mvm, "Failed to send TLC Debug command: %d\n", ret); + + kfree(dhc_cmd); + return ret; +} +#endif /* CONFIG_IWLWIFI_DHC */ + u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta) { struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h index 32104c9f8f5e..2b72d477a46f 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h @@ -211,13 +211,6 @@ struct rs_rate { #define is_ht80(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_80) #define is_ht160(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_160) -#define IWL_MAX_MCS_DISPLAY_SIZE 12 - -struct iwl_rate_mcs_info { - char mbps[IWL_MAX_MCS_DISPLAY_SIZE]; - char mcs[IWL_MAX_MCS_DISPLAY_SIZE]; -}; - /** * struct iwl_lq_sta_rs_fw - rate and related statistics for RS in FW * @last_rate_n_flags: last rate reported by FW @@ -454,4 +447,7 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta); + +int iwl_rs_send_dhc(struct iwl_mvm *mvm, struct iwl_lq_sta_rs_fw *lq_sta, + u32 type, u32 data); #endif /* __rs__ */