From patchwork Fri Apr 1 12:09:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baochen Qiang X-Patchwork-Id: 555803 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 8E3E4C433F5 for ; Fri, 1 Apr 2022 12:10:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242133AbiDAMMA (ORCPT ); Fri, 1 Apr 2022 08:12:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345758AbiDAMLy (ORCPT ); Fri, 1 Apr 2022 08:11:54 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C58AE1E8CED for ; Fri, 1 Apr 2022 05:10:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1648815004; x=1680351004; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HMmnAuVHxB0SHxOsYdSiN2WhofspnprB2nUQMcpCgfA=; b=bxl5jF4I4SoVedjikc27GMCRWLtWQury5HyLaMR1F/eOVi73bdqzhD2u 3uUCT7QEb9gz2hvBhPuETGLPLqN5yX9W8+sU9zomZEQAju6IMAm4Y5YWj 8ElFBpG6moAq82bpg+siHivG0Krtj63rXXJfI5LijWyIblHB90YVPgh7L s=; Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by alexa-out-sd-02.qualcomm.com with ESMTP; 01 Apr 2022 05:10:04 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg01-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Apr 2022 05:10:04 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Fri, 1 Apr 2022 05:10:04 -0700 Received: from bqiang-Celadon-RN.qca.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Fri, 1 Apr 2022 05:10:03 -0700 From: Baochen Qiang To: CC: Subject: [PATCH v4 2/2] ath11k: Add support for SAR Date: Fri, 1 Apr 2022 20:09:48 +0800 Message-ID: <20220401120948.1312956-3-quic_bqiang@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220401120948.1312956-1-quic_bqiang@quicinc.com> References: <20220401120948.1312956-1-quic_bqiang@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org ath11k assigns ath11k_mac_op_set_bios_sar_specs to ath11k_ops, and this function is called when user space application calls NL80211_CMD_SET_SAR_SPECS. ath11k also registers SAR type and frequency ranges to wiphy so user space can query SAR capabilities. This feature is currently enabled for WCN6855. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-02431-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Baochen Qiang --- drivers/net/wireless/ath/ath11k/core.c | 6 +++ drivers/net/wireless/ath/ath11k/hw.c | 20 ++++++++ drivers/net/wireless/ath/ath11k/hw.h | 2 + drivers/net/wireless/ath/ath11k/mac.c | 66 ++++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/wmi.c | 70 ++++++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/wmi.h | 27 ++++++++++ 6 files changed, 191 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c index 7f4462cf5787..41a57312d4e6 100644 --- a/drivers/net/wireless/ath/ath11k/core.c +++ b/drivers/net/wireless/ath/ath11k/core.c @@ -102,6 +102,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .current_cc_support = false, .dbr_debug_support = true, .global_reset = false, + .bios_sar_capa = NULL, }, { .hw_rev = ATH11K_HW_IPQ6018_HW10, @@ -169,6 +170,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .current_cc_support = false, .dbr_debug_support = true, .global_reset = false, + .bios_sar_capa = NULL, }, { .name = "qca6390 hw2.0", @@ -235,6 +237,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .current_cc_support = true, .dbr_debug_support = false, .global_reset = true, + .bios_sar_capa = NULL, }, { .name = "qcn9074 hw1.0", @@ -301,6 +304,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .current_cc_support = false, .dbr_debug_support = true, .global_reset = false, + .bios_sar_capa = NULL, }, { .name = "wcn6855 hw2.0", @@ -367,6 +371,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .current_cc_support = true, .dbr_debug_support = false, .global_reset = true, + .bios_sar_capa = &ath11k_hw_sar_capa_wcn6855, }, { .name = "wcn6855 hw2.1", @@ -432,6 +437,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .current_cc_support = true, .dbr_debug_support = false, .global_reset = true, + .bios_sar_capa = &ath11k_hw_sar_capa_wcn6855, }, }; diff --git a/drivers/net/wireless/ath/ath11k/hw.c b/drivers/net/wireless/ath/ath11k/hw.c index d1b0e76d9ec2..46449a18b5cb 100644 --- a/drivers/net/wireless/ath/ath11k/hw.c +++ b/drivers/net/wireless/ath/ath11k/hw.c @@ -2154,3 +2154,23 @@ const struct ath11k_hw_hal_params ath11k_hw_hal_params_ipq8074 = { const struct ath11k_hw_hal_params ath11k_hw_hal_params_qca6390 = { .rx_buf_rbm = HAL_RX_BUF_RBM_SW1_BM, }; + +static const struct cfg80211_sar_freq_ranges ath11k_hw_sar_freq_ranges_wcn6855[] = { + {.start_freq = 2402, .end_freq = 2482 }, /* 2G ch1~ch13 */ + {.start_freq = 5150, .end_freq = 5250 }, /* 5G UNII-1 ch32~ch48 */ + {.start_freq = 5250, .end_freq = 5725 }, /* 5G UNII-2 ch50~ch144 */ + {.start_freq = 5725, .end_freq = 5810 }, /* 5G UNII-3 ch149~ch161 */ + {.start_freq = 5815, .end_freq = 5895 }, /* 5G UNII-4 ch163~ch177 */ + {.start_freq = 5925, .end_freq = 6165 }, /* 6G UNII-5 Ch1, Ch2 ~ Ch41 */ + {.start_freq = 6165, .end_freq = 6425 }, /* 6G UNII-5 ch45~ch93 */ + {.start_freq = 6425, .end_freq = 6525 }, /* 6G UNII-6 ch97~ch113 */ + {.start_freq = 6525, .end_freq = 6705 }, /* 6G UNII-7 ch117~ch149 */ + {.start_freq = 6705, .end_freq = 6875 }, /* 6G UNII-7 ch153~ch185 */ + {.start_freq = 6875, .end_freq = 7125 }, /* 6G UNII-8 ch189~ch233 */ +}; + +const struct cfg80211_sar_capa ath11k_hw_sar_capa_wcn6855 = { + .type = NL80211_SAR_TYPE_POWER, + .num_freq_ranges = (ARRAY_SIZE(ath11k_hw_sar_freq_ranges_wcn6855)), + .freq_ranges = ath11k_hw_sar_freq_ranges_wcn6855, +}; diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h index 44025bc5d082..29546d8de738 100644 --- a/drivers/net/wireless/ath/ath11k/hw.h +++ b/drivers/net/wireless/ath/ath11k/hw.h @@ -195,6 +195,7 @@ struct ath11k_hw_params { bool current_cc_support; bool dbr_debug_support; bool global_reset; + const struct cfg80211_sar_capa *bios_sar_capa; }; struct ath11k_hw_ops { @@ -380,4 +381,5 @@ static inline const char *ath11k_bd_ie_type_str(enum ath11k_bd_ie_type type) return "unknown"; } +extern const struct cfg80211_sar_capa ath11k_hw_sar_capa_wcn6855; #endif diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 175a4ae752f3..2b243458ff5d 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -8273,6 +8273,67 @@ static void ath11k_mac_op_set_rekey_data(struct ieee80211_hw *hw, mutex_unlock(&ar->conf_mutex); } +static int ath11k_mac_op_set_bios_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + struct ath11k *ar = hw->priv; + const struct cfg80211_sar_sub_specs *sspec = sar->sub_specs; + u8 *sar_tbl; + u32 i; + int ret; + + mutex_lock(&ar->conf_mutex); + + if (!test_bit(WMI_TLV_SERVICE_BIOS_SAR_SUPPORT, ar->ab->wmi_ab.svc_map) || + !ar->ab->hw_params.bios_sar_capa) { + ret = -EOPNOTSUPP; + goto exit; + } + + if (!sar || sar->type != NL80211_SAR_TYPE_POWER || + sar->num_sub_specs == 0) { + ret = -EINVAL; + goto exit; + } + + ret = ath11k_wmi_pdev_set_bios_geo_table_param(ar); + if (ret) { + ath11k_warn(ar->ab, "failed to set geo table: %d\n", ret); + goto exit; + } + + sar_tbl = kzalloc(BIOS_SAR_TABLE_LEN, GFP_KERNEL); + if (!sar_tbl) { + ret = -ENOMEM; + goto exit; + } + + for (i = 0; i < sar->num_sub_specs; i++) { + if (sspec->freq_range_index >= (BIOS_SAR_TABLE_LEN >> 1)) { + ath11k_warn(ar->ab, "Ignore bad frequency index %u, max allowed %u\n", + sspec->freq_range_index, BIOS_SAR_TABLE_LEN >> 1); + continue; + } + + /* chain0 and chain1 share same power setting */ + sar_tbl[sspec->freq_range_index] = sspec->power; + sar_tbl[sspec->freq_range_index + (BIOS_SAR_TABLE_LEN >> 1)] = sspec->power; + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "sar tbl[%d] = %d\n", + sspec->freq_range_index, sar_tbl[sspec->freq_range_index]); + sspec++; + } + + ret = ath11k_wmi_pdev_set_bios_sar_table_param(ar, sar_tbl); + if (ret) + ath11k_warn(ar->ab, "failed to set sar power: %d", ret); + + kfree(sar_tbl); +exit: + mutex_unlock(&ar->conf_mutex); + + return ret; +} + static const struct ieee80211_ops ath11k_ops = { .tx = ath11k_mac_op_tx, .start = ath11k_mac_op_start, @@ -8324,6 +8385,7 @@ static const struct ieee80211_ops ath11k_ops = { .ipv6_addr_change = ath11k_mac_op_ipv6_changed, #endif + .set_sar_specs = ath11k_mac_op_set_bios_sar_specs, }; static void ath11k_mac_update_ch_list(struct ath11k *ar, @@ -8746,6 +8808,10 @@ static int __ath11k_mac_register(struct ath11k *ar) ieee80211_hw_set(ar->hw, SUPPORT_FAST_XMIT); } + if (test_bit(WMI_TLV_SERVICE_BIOS_SAR_SUPPORT, ar->ab->wmi_ab.svc_map) && + ab->hw_params.bios_sar_capa) + ar->hw->wiphy->sar_capa = ab->hw_params.bios_sar_capa; + ret = ieee80211_register_hw(ar->hw); if (ret) { ath11k_err(ar->ab, "ieee80211 registration failed: %d\n", ret); diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index a5876e0378fe..60e6e3a41453 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -8883,3 +8883,73 @@ int ath11k_wmi_gtk_rekey_getinfo(struct ath11k *ar, arvif->vdev_id); return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_GTK_OFFLOAD_CMDID); } + +int ath11k_wmi_pdev_set_bios_sar_table_param(struct ath11k *ar, const u8 *sar_val) +{ struct ath11k_pdev_wmi *wmi = ar->wmi; + struct wmi_pdev_set_sar_table_cmd *cmd; + struct wmi_tlv *tlv; + struct sk_buff *skb; + u8 *buf_ptr; + u32 len, sar_len_aligned, rsvd_len_aligned; + + sar_len_aligned = roundup(BIOS_SAR_TABLE_LEN, sizeof(u32)); + rsvd_len_aligned = roundup(BIOS_SAR_RSVD1_LEN, sizeof(u32)); + len = sizeof(*cmd) + + TLV_HDR_SIZE + sar_len_aligned + + TLV_HDR_SIZE + rsvd_len_aligned; + + skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_pdev_set_sar_table_cmd *)skb->data; + cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_PDEV_SET_BIOS_SAR_TABLE_CMD) | + FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE); + cmd->pdev_id = ar->pdev->pdev_id; + cmd->sar_len = BIOS_SAR_TABLE_LEN; + cmd->rsvd_len = BIOS_SAR_RSVD1_LEN; + + buf_ptr = skb->data + sizeof(*cmd); + tlv = (struct wmi_tlv *) buf_ptr; + tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) | + FIELD_PREP(WMI_TLV_LEN, sar_len_aligned); + buf_ptr += TLV_HDR_SIZE; + memcpy(buf_ptr, sar_val, BIOS_SAR_TABLE_LEN); + + buf_ptr += sar_len_aligned; + tlv = (struct wmi_tlv *) buf_ptr; + tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) | + FIELD_PREP(WMI_TLV_LEN, rsvd_len_aligned); + + return ath11k_wmi_cmd_send(wmi, skb, WMI_PDEV_SET_BIOS_SAR_TABLE_CMDID); +} + +int ath11k_wmi_pdev_set_bios_geo_table_param(struct ath11k *ar) +{ + struct ath11k_pdev_wmi *wmi = ar->wmi; + struct wmi_pdev_set_geo_table_cmd *cmd; + struct wmi_tlv *tlv; + struct sk_buff *skb; + u8 *buf_ptr; + u32 len, rsvd_len_aligned; + + rsvd_len_aligned = roundup(BIOS_SAR_RSVD2_LEN, sizeof(u32)); + len = sizeof(*cmd) + TLV_HDR_SIZE + rsvd_len_aligned; + + skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_pdev_set_geo_table_cmd *)skb->data; + cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_PDEV_SET_BIOS_GEO_TABLE_CMD) | + FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE); + cmd->pdev_id = ar->pdev->pdev_id; + cmd->rsvd_len = BIOS_SAR_RSVD2_LEN; + + buf_ptr = skb->data + sizeof(*cmd); + tlv = (struct wmi_tlv *) buf_ptr; + tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) | + FIELD_PREP(WMI_TLV_LEN, rsvd_len_aligned); + + return ath11k_wmi_cmd_send(wmi, skb, WMI_PDEV_SET_BIOS_GEO_TABLE_CMDID); +} diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h index da9b0a90fd70..c9c6faee45c1 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.h +++ b/drivers/net/wireless/ath/ath11k/wmi.h @@ -285,6 +285,11 @@ enum wmi_tlv_cmd_id { WMI_PDEV_SET_SRG_OBSS_BSSID_ENABLE_BITMAP_CMDID, WMI_PDEV_SET_NON_SRG_OBSS_COLOR_ENABLE_BITMAP_CMDID, WMI_PDEV_SET_NON_SRG_OBSS_BSSID_ENABLE_BITMAP_CMDID, + WMI_PDEV_GET_TPC_STATS_CMDID, + WMI_PDEV_ENABLE_DURATION_BASED_TX_MODE_SELECTION_CMDID, + WMI_PDEV_GET_DPD_STATUS_CMDID, + WMI_PDEV_SET_BIOS_SAR_TABLE_CMDID, + WMI_PDEV_SET_BIOS_GEO_TABLE_CMDID, WMI_VDEV_CREATE_CMDID = WMI_TLV_CMD(WMI_GRP_VDEV), WMI_VDEV_DELETE_CMDID, WMI_VDEV_START_REQUEST_CMDID, @@ -1859,6 +1864,8 @@ enum wmi_tlv_tag { WMI_TAG_PDEV_SRG_OBSS_BSSID_ENABLE_BITMAP_CMD, WMI_TAG_PDEV_NON_SRG_OBSS_COLOR_ENABLE_BITMAP_CMD, WMI_TAG_PDEV_NON_SRG_OBSS_BSSID_ENABLE_BITMAP_CMD, + WMI_TAG_PDEV_SET_BIOS_SAR_TABLE_CMD = 0x3D8, + WMI_TAG_PDEV_SET_BIOS_GEO_TABLE_CMD, WMI_TAG_MAX }; @@ -2087,6 +2094,7 @@ enum wmi_tlv_service { /* The second 128 bits */ WMI_MAX_EXT_SERVICE = 256, + WMI_TLV_SERVICE_BIOS_SAR_SUPPORT = 326, /* The third 128 bits */ WMI_MAX_EXT2_SERVICE = 384 @@ -5890,6 +5898,23 @@ struct wmi_gtk_rekey_offload_cmd { u8 replay_ctr[GTK_REPLAY_COUNTER_BYTES]; } __packed; +#define BIOS_SAR_TABLE_LEN (22) +#define BIOS_SAR_RSVD1_LEN (6) +#define BIOS_SAR_RSVD2_LEN (18) + +struct wmi_pdev_set_sar_table_cmd { + u32 tlv_header; + u32 pdev_id; + u32 sar_len; + u32 rsvd_len; +} __packed; + +struct wmi_pdev_set_geo_table_cmd { + u32 tlv_header; + u32 pdev_id; + u32 rsvd_len; +} __packed; + int ath11k_wmi_cmd_send(struct ath11k_pdev_wmi *wmi, struct sk_buff *skb, u32 cmd_id); struct sk_buff *ath11k_wmi_alloc_skb(struct ath11k_wmi_base *wmi_sc, u32 len); @@ -6068,5 +6093,7 @@ int ath11k_wmi_gtk_rekey_offload(struct ath11k *ar, struct ath11k_vif *arvif, bool enable); int ath11k_wmi_gtk_rekey_getinfo(struct ath11k *ar, struct ath11k_vif *arvif); +int ath11k_wmi_pdev_set_bios_sar_table_param(struct ath11k *ar, const u8 *sar_val); +int ath11k_wmi_pdev_set_bios_geo_table_param(struct ath11k *ar); #endif