diff options
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h | 97 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/dhc-utils.h | 75 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mld/debugfs.c | 232 |
3 files changed, 404 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h index dbe06f3fc662..b6d79c678cd8 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dhc.h @@ -15,6 +15,19 @@ enum iwl_dhc_table_id { * @DHC_TABLE_INTEGRATION: select the integration table */ DHC_TABLE_INTEGRATION = 2 << DHC_TABLE_MASK_POS, + /** + * @DHC_TABLE_TOOLS: select the tools table + */ + DHC_TABLE_TOOLS = 0, +}; + +/** + * enum iwl_dhc_umac_tools_table - tools operations + * @DHC_TOOLS_UMAC_GET_TAS_STATUS: Get TAS status. + * See @struct iwl_dhc_tas_status_resp + */ +enum iwl_dhc_umac_tools_table { + DHC_TOOLS_UMAC_GET_TAS_STATUS = 0, }; /** @@ -59,6 +72,90 @@ struct iwl_dhc_cmd { } __packed; /* DHC_CMD_API_S */ /** + * struct iwl_dhc_payload_hdr - DHC payload header + * @version: a version of a payload + * @reserved: reserved for alignment + */ +struct iwl_dhc_payload_hdr { + u8 version; + u8 reserved[3]; +} __packed; /* DHC_PAYLOAD_HDR_API_S_VER_1 */ + +/** + * struct iwl_dhc_tas_status_per_radio - TAS status per radio + * @band: &PHY_BAND_5 for high band, PHY_BAND_24 for low band and + * &PHY_BAND_6 for ultra high band. + * @static_status: TAS statically enabled or disabled + * @static_disable_reason: TAS static disable reason, uses + * &enum iwl_tas_statically_disabled_reason + * @near_disconnection: is TAS currently near disconnection per radio + * @dynamic_status_ant_a: Antenna A current TAS status. + * uses &enum iwl_tas_dyna_status + * @dynamic_status_ant_b: Antenna B current TAS status. + * uses &enum iwl_tas_dyna_status + * @max_reg_pwr_limit_ant_a: Antenna A regulatory power limits in dBm + * @max_reg_pwr_limit_ant_b: Antenna B regulatory power limits in dBm + * @sar_limit_ant_a: Antenna A SAR limit per radio in dBm + * @sar_limit_ant_b: Antenna B SAR limit per radio in dBm + * @reserved: reserved for alignment + */ +struct iwl_dhc_tas_status_per_radio { + u8 band; + u8 static_status; + u8 static_disable_reason; + u8 near_disconnection; + u8 dynamic_status_ant_a; + u8 dynamic_status_ant_b; + __le16 max_reg_pwr_limit_ant_a; + __le16 max_reg_pwr_limit_ant_b; + __le16 sar_limit_ant_a; + __le16 sar_limit_ant_b; + u8 reserved[2]; +} __packed; /* DHC_TAS_STATUS_PER_RADIO_S_VER_1 */ + +/** + * struct iwl_dhc_tas_status_resp - Response to DHC_TOOLS_UMAC_GET_TAS_STATUS + * @header: DHC payload header, uses &struct iwl_dhc_payload_hdr + * @tas_config_info: see @struct bios_value_u32 + * @mcc_block_list: block listed country codes + * @tas_status_radio: TAS status, uses &struct iwl_dhc_tas_status_per_radio + * @curr_mcc: current mcc + * @valid_radio_mask: represent entry in tas_status_per_radio is valid. + * @reserved: reserved for alignment + */ +struct iwl_dhc_tas_status_resp { + struct iwl_dhc_payload_hdr header; + struct bios_value_u32 tas_config_info; + __le16 mcc_block_list[IWL_WTAS_BLACK_LIST_MAX]; + struct iwl_dhc_tas_status_per_radio tas_status_radio[2]; + __le16 curr_mcc; + u8 valid_radio_mask; + u8 reserved; +} __packed; /* DHC_TAS_STATUS_RSP_API_S_VER_1 */ + +/** + * struct iwl_dhc_cmd_resp_v1 - debug host command response + * @status: status of the command + * @data: the response data + */ +struct iwl_dhc_cmd_resp_v1 { + __le32 status; + __le32 data[]; +} __packed; /* DHC_RESP_API_S_VER_1 */ + +/** + * struct iwl_dhc_cmd_resp - debug host command response + * @status: status of the command + * @descriptor: command descriptor (index_and_mask) returned + * @data: the response data + */ +struct iwl_dhc_cmd_resp { + __le32 status; + __le32 descriptor; + __le32 data[]; +} __packed; /* DHC_RESP_API_S_VER_2 and DHC_RESP_API_S_VER_3 */ + +/** * enum iwl_dhc_twt_operation_type - describes the TWT operation type * * @DHC_TWT_REQUEST: Send a Request TWT command diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dhc-utils.h b/drivers/net/wireless/intel/iwlwifi/fw/dhc-utils.h new file mode 100644 index 000000000000..983acee5cd7d --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/fw/dhc-utils.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2021, 2025 Intel Corporation + */ +#ifndef __iwl_fw_dhc_utils_h__ +#define __iwl_fw_dhc_utils_h__ + +#include <linux/types.h> +#include "fw/img.h" +#include "api/commands.h" +#include "api/dhc.h" + +/** + * iwl_dhc_resp_status - return status of DHC response + * @fw: firwmware image information + * @pkt: response packet, must not be %NULL + * + * Returns: the status value of the DHC command or (u32)-1 if the + * response was too short. + */ +static inline u32 iwl_dhc_resp_status(const struct iwl_fw *fw, + struct iwl_rx_packet *pkt) +{ + if (iwl_fw_lookup_notif_ver(fw, IWL_ALWAYS_LONG_GROUP, + DEBUG_HOST_COMMAND, 1) >= 2) { + struct iwl_dhc_cmd_resp *resp = (void *)pkt->data; + + if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp)) + return (u32)-1; + + return le32_to_cpu(resp->status); + } else { + struct iwl_dhc_cmd_resp_v1 *resp = (void *)pkt->data; + + if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp)) + return (u32)-1; + + return le32_to_cpu(resp->status); + } +} + +/** + * iwl_dhc_resp_data - return data pointer of DHC response + * @fw: firwmware image information + * @pkt: response packet, must not be %NULL + * @len: where to store the length + * + * Returns: The data pointer, or an ERR_PTR() if the data was + * not valid (too short). + */ +static inline void *iwl_dhc_resp_data(const struct iwl_fw *fw, + struct iwl_rx_packet *pkt, + unsigned int *len) +{ + if (iwl_fw_lookup_notif_ver(fw, IWL_ALWAYS_LONG_GROUP, + DEBUG_HOST_COMMAND, 1) >= 2) { + struct iwl_dhc_cmd_resp *resp = (void *)pkt->data; + + if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp)) + return ERR_PTR(-EINVAL); + + *len = iwl_rx_packet_payload_len(pkt) - sizeof(*resp); + return (void *)&resp->data; + } else { + struct iwl_dhc_cmd_resp_v1 *resp = (void *)pkt->data; + + if (iwl_rx_packet_payload_len(pkt) < sizeof(*resp)) + return ERR_PTR(-EINVAL); + + *len = iwl_rx_packet_payload_len(pkt) - sizeof(*resp); + return (void *)&resp->data; + } +} + +#endif /* __iwl_fw_dhc_utils_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c index c67dbbf575d7..14330daa6d13 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c @@ -21,6 +21,8 @@ #include "fw/api/rs.h" #include "fw/api/dhc.h" #include "fw/api/rfi.h" +#include "fw/dhc-utils.h" +#include <linux/dmi.h> #define MLD_DEBUGFS_READ_FILE_OPS(name, bufsz) \ _MLD_DEBUGFS_READ_FILE_OPS(name, bufsz, struct iwl_mld) @@ -206,11 +208,240 @@ iwl_dbgfs_he_sniffer_params_read(struct iwl_mld *mld, char *buf, size_t count) #define IWL_RFI_BUF_SIZE (IWL_RFI_DDR_BUF_SIZE + IWL_RFI_DLVR_BUF_SIZE +\ IWL_RFI_DESENSE_BUF_SIZE + 32) +static size_t iwl_mld_dump_tas_resp(struct iwl_dhc_tas_status_resp *resp, + size_t count, u8 *buf) +{ + 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", + [TAS_DISABLED_DUE_TO_TABLE_SOURCE_INVALID] = + "Due to table source invalid" + }; + 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", + }; + ssize_t pos = 0; + + if (resp->header.version != 1) { + pos += scnprintf(buf + pos, count - pos, + "Unsupported TAS response version:%d", + resp->header.version); + return pos; + } + + pos += scnprintf(buf + pos, count - pos, "TAS Report\n"); + switch (resp->tas_config_info.table_source) { + case BIOS_SOURCE_NONE: + pos += scnprintf(buf + pos, count - pos, + "BIOS SOURCE NONE "); + break; + case BIOS_SOURCE_ACPI: + pos += scnprintf(buf + pos, count - pos, + "BIOS SOURCE ACPI "); + break; + case BIOS_SOURCE_UEFI: + pos += scnprintf(buf + pos, count - pos, + "BIOS SOURCE UEFI "); + break; + default: + pos += scnprintf(buf + pos, count - pos, + "BIOS SOURCE UNKNOWN (%d) ", + resp->tas_config_info.table_source); + break; + } + + pos += scnprintf(buf + pos, count - pos, + "revision is: %d data is: 0x%08x\n", + resp->tas_config_info.table_revision, + resp->tas_config_info.value); + pos += scnprintf(buf + pos, count - pos, "Current MCC: 0x%x\n", + le16_to_cpu(resp->curr_mcc)); + + pos += scnprintf(buf + pos, count - pos, "Block list entries:"); + for (int i = 0; i < ARRAY_SIZE(resp->mcc_block_list); i++) + pos += scnprintf(buf + pos, count - pos, " 0x%x", + le16_to_cpu(resp->mcc_block_list[i])); + + pos += scnprintf(buf + pos, count - pos, + "\nDo TAS Support Dual Radio?: %s\n", + hweight8(resp->valid_radio_mask) > 1 ? + "TRUE" : "FALSE"); + + for (int i = 0; i < ARRAY_SIZE(resp->tas_status_radio); i++) { + int tmp; + unsigned long dynamic_status; + + if (!(resp->valid_radio_mask & BIT(i))) + continue; + + pos += scnprintf(buf + pos, count - pos, + "TAS report for radio:%d\n", i + 1); + pos += scnprintf(buf + pos, count - pos, + "Static status: %sabled\n", + resp->tas_status_radio[i].static_status ? + "En" : "Dis"); + if (!resp->tas_status_radio[i].static_status) { + u8 static_disable_reason = + resp->tas_status_radio[i].static_disable_reason; + + pos += scnprintf(buf + pos, count - pos, + "\tStatic Disabled Reason: "); + if (static_disable_reason >= TAS_DISABLED_REASON_MAX) { + pos += scnprintf(buf + pos, count - pos, + "unsupported value (%d)\n", + static_disable_reason); + continue; + } + + pos += scnprintf(buf + pos, count - pos, + "%s (%d)\n", + tas_dis_reason[static_disable_reason], + static_disable_reason); + continue; + } + + pos += scnprintf(buf + pos, count - pos, "\tANT A %s and ", + (resp->tas_status_radio[i].dynamic_status_ant_a + & BIT(TAS_DYNA_ACTIVE)) ? "ON" : "OFF"); + + pos += scnprintf(buf + pos, count - pos, "ANT B %s for ", + (resp->tas_status_radio[i].dynamic_status_ant_b + & BIT(TAS_DYNA_ACTIVE)) ? "ON" : "OFF"); + + switch (resp->tas_status_radio[i].band) { + case PHY_BAND_5: + pos += scnprintf(buf + pos, count - pos, "HB\n"); + break; + case PHY_BAND_24: + pos += scnprintf(buf + pos, count - pos, "LB\n"); + break; + case PHY_BAND_6: + pos += scnprintf(buf + pos, count - pos, "UHB\n"); + break; + default: + pos += scnprintf(buf + pos, count - pos, + "Unsupported band (%d)\n", + resp->tas_status_radio[i].band); + break; + } + + pos += scnprintf(buf + pos, count - pos, + "Is near disconnection?: %s\n", + resp->tas_status_radio[i].near_disconnection ? + "True" : "False"); + + pos += scnprintf(buf + pos, count - pos, + "Dynamic status antenna A:\n"); + dynamic_status = resp->tas_status_radio[i].dynamic_status_ant_a; + for_each_set_bit(tmp, &dynamic_status, TAS_DYNA_STATUS_MAX) { + pos += scnprintf(buf + pos, count - pos, "\t%s (%d)\n", + tas_current_status[tmp], tmp); + } + pos += scnprintf(buf + pos, count - pos, + "\nDynamic status antenna B:\n"); + dynamic_status = resp->tas_status_radio[i].dynamic_status_ant_b; + for_each_set_bit(tmp, &dynamic_status, TAS_DYNA_STATUS_MAX) { + pos += scnprintf(buf + pos, count - pos, "\t%s (%d)\n", + tas_current_status[tmp], tmp); + } + + tmp = le16_to_cpu(resp->tas_status_radio[i].max_reg_pwr_limit_ant_a); + pos += scnprintf(buf + pos, count - pos, + "Max antenna A regulatory pwr limit (dBm): %d.%03d\n", + tmp / 8, 125 * (tmp % 8)); + tmp = le16_to_cpu(resp->tas_status_radio[i].max_reg_pwr_limit_ant_b); + pos += scnprintf(buf + pos, count - pos, + "Max antenna B regulatory pwr limit (dBm): %d.%03d\n", + tmp / 8, 125 * (tmp % 8)); + + tmp = le16_to_cpu(resp->tas_status_radio[i].sar_limit_ant_a); + pos += scnprintf(buf + pos, count - pos, + "Antenna A SAR limit (dBm): %d.%03d\n", + tmp / 8, 125 * (tmp % 8)); + tmp = le16_to_cpu(resp->tas_status_radio[i].sar_limit_ant_b); + pos += scnprintf(buf + pos, count - pos, + "Antenna B SAR limit (dBm): %d.%03d\n", + tmp / 8, 125 * (tmp % 8)); + } + + return pos; +} + +static ssize_t iwl_dbgfs_tas_get_status_read(struct iwl_mld *mld, char *buf, + size_t count) +{ + struct iwl_dhc_cmd cmd = { + .index_and_mask = cpu_to_le32(DHC_TABLE_TOOLS | + DHC_TARGET_UMAC | + DHC_TOOLS_UMAC_GET_TAS_STATUS), + }; + struct iwl_host_cmd hcmd = { + .id = WIDE_ID(LEGACY_GROUP, DEBUG_HOST_COMMAND), + .flags = CMD_WANT_SKB, + .len[0] = sizeof(cmd), + .data[0] = &cmd, + }; + struct iwl_dhc_tas_status_resp *resp = NULL; + ssize_t pos = 0; + u32 resp_len; + u32 status; + int ret; + + if (iwl_mld_dbgfs_fw_cmd_disabled(mld)) + return -EIO; + + ret = iwl_mld_send_cmd(mld, &hcmd); + if (ret) + return ret; + + pos += scnprintf(buf + pos, count - pos, "\nOEM name: %s\n", + dmi_get_system_info(DMI_SYS_VENDOR) ?: "<unknown>"); + pos += scnprintf(buf + pos, count - pos, + "\tVendor In Approved List: %s\n", + iwl_is_tas_approved() ? "YES" : "NO"); + + status = iwl_dhc_resp_status(mld->fwrt.fw, hcmd.resp_pkt); + if (status != 1) { + pos += scnprintf(buf + pos, count - pos, + "response status is not success: %d\n", + status); + goto out; + } + + resp = iwl_dhc_resp_data(mld->fwrt.fw, hcmd.resp_pkt, &resp_len); + if (IS_ERR(resp) || resp_len != sizeof(*resp)) { + pos += scnprintf(buf + pos, count - pos, + "Invalid size for TAS response (%u instead of %zd)\n", + resp_len, sizeof(*resp)); + goto out; + } + + pos += iwl_mld_dump_tas_resp(resp, count - pos, buf + pos); + +out: + iwl_free_resp(&hcmd); + return pos; +} + WIPHY_DEBUGFS_WRITE_FILE_OPS_MLD(fw_nmi, 10); WIPHY_DEBUGFS_WRITE_FILE_OPS_MLD(fw_restart, 10); WIPHY_DEBUGFS_READ_WRITE_FILE_OPS_MLD(he_sniffer_params, 32); WIPHY_DEBUGFS_WRITE_FILE_OPS_MLD(fw_dbg_clear, 10); WIPHY_DEBUGFS_WRITE_FILE_OPS_MLD(send_echo_cmd, 8); +WIPHY_DEBUGFS_READ_FILE_OPS_MLD(tas_get_status, 2048); static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct iwl_mld *mld, size_t count, u8 *buf) @@ -307,6 +538,7 @@ iwl_mld_add_debugfs_files(struct iwl_mld *mld, struct dentry *debugfs_dir) MLD_DEBUGFS_ADD_FILE(he_sniffer_params, debugfs_dir, 0600); MLD_DEBUGFS_ADD_FILE(fw_dbg_clear, debugfs_dir, 0200); MLD_DEBUGFS_ADD_FILE(send_echo_cmd, debugfs_dir, 0200); + MLD_DEBUGFS_ADD_FILE(tas_get_status, debugfs_dir, 0400); #ifdef CONFIG_THERMAL MLD_DEBUGFS_ADD_FILE(start_ctdp, debugfs_dir, 0200); MLD_DEBUGFS_ADD_FILE(stop_ctdp, debugfs_dir, 0200); |