From patchwork Mon Sep 28 09:23:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 11803233 X-Patchwork-Delegate: luca@coelho.fi Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 83E266CA for ; Mon, 28 Sep 2020 09:23:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6ED3A21D95 for ; Mon, 28 Sep 2020 09:23:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726601AbgI1JX1 (ORCPT ); Mon, 28 Sep 2020 05:23:27 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:52728 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726566AbgI1JX1 (ORCPT ); Mon, 28 Sep 2020 05:23:27 -0400 Received: from 91-156-6-193.elisa-laajakaista.fi ([91.156.6.193] helo=redipa.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1kMpNU-002KgD-6h; Mon, 28 Sep 2020 12:23:24 +0300 From: Luca Coelho To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org Date: Mon, 28 Sep 2020 12:23:10 +0300 Message-Id: X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200928092321.649185-1-luca@coelho.fi> References: <20200928092321.649185-1-luca@coelho.fi> MIME-Version: 1.0 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on farmhouse.coelho.fi X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, TVD_RCVD_IP autolearn=ham autolearn_force=no version=3.4.4 Subject: [PATCH 01/12] iwlwifi: add a common struct for all iwl_tx_power_cmd versions Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Luca Coelho Create a common structure to contain all different versions of the tx_power_cmd instead of making a union of the different structs everywhere we need them. Also move the common part of these structs into a separate structure (instead of reusing v3) and leave the per_chain_restriction part out of the common part, because this will change in version 6 of the command (which will be added soon). While at it, rename per_chain_restriction to per_chain to shorten it. Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 5 +- drivers/net/wireless/intel/iwlwifi/fw/acpi.h | 4 +- .../wireless/intel/iwlwifi/fw/api/commands.h | 3 +- .../net/wireless/intel/iwlwifi/fw/api/power.h | 46 +++++++++++++------ drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 16 +++---- .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 18 ++++---- 6 files changed, 54 insertions(+), 38 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index e3de4e11f4ae..448af3b1d5d6 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -420,7 +420,7 @@ static int iwl_sar_set_profile(union acpi_object *table, } int iwl_sar_select_profile(struct iwl_fw_runtime *fwrt, - __le16 per_chain_restriction[][IWL_NUM_SUB_BANDS], + __le16 per_chain[][IWL_NUM_SUB_BANDS], int prof_a, int prof_b) { int i, j, idx; @@ -462,8 +462,7 @@ int iwl_sar_select_profile(struct iwl_fw_runtime *fwrt, IWL_DEBUG_RADIO(fwrt, " Chain[%d]:\n", i); for (j = 0; j < ACPI_SAR_NUM_SUB_BANDS; j++) { idx = (i * ACPI_SAR_NUM_SUB_BANDS) + j; - per_chain_restriction[i][j] = - cpu_to_le16(prof->table[idx]); + per_chain[i][j] = cpu_to_le16(prof->table[idx]); IWL_DEBUG_RADIO(fwrt, " Band[%d] = %d * .125dBm\n", j, prof->table[idx]); } diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h index eafc23c6f55f..6accf5c57a44 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h @@ -183,7 +183,7 @@ u64 iwl_acpi_get_pwr_limit(struct device *dev); int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk); int iwl_sar_select_profile(struct iwl_fw_runtime *fwrt, - __le16 per_chain_restriction[][IWL_NUM_SUB_BANDS], + __le16 per_chain[][IWL_NUM_SUB_BANDS], int prof_a, int prof_b); int iwl_sar_get_wrds_table(struct iwl_fw_runtime *fwrt); @@ -242,7 +242,7 @@ static inline int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk) } static inline int iwl_sar_select_profile(struct iwl_fw_runtime *fwrt, - __le16 per_chain_restriction[][IWL_NUM_SUB_BANDS], + __le16 per_chain[][IWL_NUM_SUB_BANDS], int prof_a, int prof_b) { return -ENOENT; diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h index 4f46f3ed8794..42e81c174205 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h @@ -431,8 +431,7 @@ enum iwl_legacy_cmds { /** * @REDUCE_TX_POWER_CMD: - * &struct iwl_dev_tx_power_cmd_v3 or &struct iwl_dev_tx_power_cmd_v4 - * or &struct iwl_dev_tx_power_cmd + * &struct iwl_dev_tx_power_cmd */ REDUCE_TX_POWER_CMD = 0x9f, diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h index 45503e78d705..3114cfbbd6a2 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h @@ -334,44 +334,49 @@ enum iwl_dev_tx_power_cmd_mode { #define IWL_NUM_SUB_BANDS_V2 11 /** - * struct iwl_dev_tx_power_cmd - TX power reduction command + * struct iwl_dev_tx_power_common - Common part of the TX power reduction cmd * @set_mode: see &enum iwl_dev_tx_power_cmd_mode * @mac_context_id: id of the mac ctx for which we are reducing TX power. * @pwr_restriction: TX power restriction in 1/8 dBms. * @dev_24: device TX power restriction in 1/8 dBms * @dev_52_low: device TX power restriction upper band - low * @dev_52_high: device TX power restriction upper band - high - * @per_chain_restriction: per chain restrictions */ -struct iwl_dev_tx_power_cmd_v3 { +struct iwl_dev_tx_power_common { __le32 set_mode; __le32 mac_context_id; __le16 pwr_restriction; __le16 dev_24; __le16 dev_52_low; __le16 dev_52_high; - __le16 per_chain_restriction[IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS]; +}; + +/** + * struct iwl_dev_tx_power_cmd_v3 - TX power reduction command version 3 + * @per_chain: per chain restrictions + */ +struct iwl_dev_tx_power_cmd_v3 { + __le16 per_chain[IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS]; } __packed; /* TX_REDUCED_POWER_API_S_VER_3 */ #define IWL_DEV_MAX_TX_POWER 0x7FFF /** - * struct iwl_dev_tx_power_cmd - TX power reduction command - * @v3: version 3 of the command, embedded here for easier software handling + * struct iwl_dev_tx_power_cmd_v4 - TX power reduction command version 4 + * @per_chain: per chain restrictions * @enable_ack_reduction: enable or disable close range ack TX power * reduction. * @reserved: reserved (padding) */ struct iwl_dev_tx_power_cmd_v4 { - /* v4 is just an extension of v3 - keep this here */ - struct iwl_dev_tx_power_cmd_v3 v3; + __le16 per_chain[IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS]; u8 enable_ack_reduction; u8 reserved[3]; } __packed; /* TX_REDUCED_POWER_API_S_VER_4 */ /** - * struct iwl_dev_tx_power_cmd - TX power reduction command - * @v3: version 3 of the command, embedded here for easier software handling + * struct iwl_dev_tx_power_cmd_v5 - TX power reduction command version 5 + * @per_chain: per chain restrictions * @enable_ack_reduction: enable or disable close range ack TX power * reduction. * @per_chain_restriction_changed: is per_chain_restriction has changed @@ -382,15 +387,30 @@ struct iwl_dev_tx_power_cmd_v4 { * @timer_period: timer in milliseconds. if expires FW will change to default * BIOS values. relevant if setMode is IWL_TX_POWER_MODE_SET_SAR_TIMER */ -struct iwl_dev_tx_power_cmd { - /* v5 is just an extension of v3 - keep this here */ - struct iwl_dev_tx_power_cmd_v3 v3; +struct iwl_dev_tx_power_cmd_v5 { + __le16 per_chain[IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS]; u8 enable_ack_reduction; u8 per_chain_restriction_changed; u8 reserved[2]; __le32 timer_period; } __packed; /* TX_REDUCED_POWER_API_S_VER_5 */ +/** + * struct iwl_dev_tx_power_cmd - TX power reduction command (multiversion) + * @common: common part of the command + * @v3: version 3 part of the command + * @v4: version 4 part of the command + * @v5: version 5 part of the command + */ +struct iwl_dev_tx_power_cmd { + struct iwl_dev_tx_power_common common; + union { + struct iwl_dev_tx_power_cmd_v3 v3; + struct iwl_dev_tx_power_cmd_v4 v4; + struct iwl_dev_tx_power_cmd_v5 v5; + }; +}; + #define IWL_NUM_GEO_PROFILES 3 /** diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index f76ed9d10af3..fd8d6190ee24 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -736,11 +736,8 @@ static int iwl_mvm_config_ltr(struct iwl_mvm *mvm) #ifdef CONFIG_ACPI int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b) { - union { - struct iwl_dev_tx_power_cmd v5; - struct iwl_dev_tx_power_cmd_v4 v4; - } cmd = { - .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS), + struct iwl_dev_tx_power_cmd cmd = { + .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS), }; int ret; u16 len = 0; @@ -750,13 +747,14 @@ int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b) len = sizeof(cmd.v5); else if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) - len = sizeof(struct iwl_dev_tx_power_cmd_v4); + len = sizeof(cmd.v4); else - len = sizeof(cmd.v4.v3); + len = sizeof(cmd.v3); + /* all structs have the same common part, add it */ + len += sizeof(cmd.common); - ret = iwl_sar_select_profile(&mvm->fwrt, - cmd.v5.v3.per_chain_restriction, + ret = iwl_sar_select_profile(&mvm->fwrt, cmd.v5.per_chain, prof_a, prof_b); /* return on error or if the profile is disabled (positive number) */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 5e141eb47abc..2beb54f97532 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1308,18 +1308,15 @@ static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, s16 tx_power) { int len; - union { - struct iwl_dev_tx_power_cmd v5; - struct iwl_dev_tx_power_cmd_v4 v4; - } cmd = { - .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), - .v5.v3.mac_context_id = + struct iwl_dev_tx_power_cmd cmd = { + .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), + .common.mac_context_id = cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), - .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), + .common.pwr_restriction = cpu_to_le16(8 * tx_power), }; if (tx_power == IWL_DEFAULT_MAX_TX_POWER) - cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); + cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_REDUCE_TX_POWER)) @@ -1328,7 +1325,10 @@ static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) len = sizeof(cmd.v4); else - len = sizeof(cmd.v4.v3); + len = sizeof(cmd.v3); + + /* all structs have the same common part, add it */ + len += sizeof(cmd.common); return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); }