// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2012-2014, 2018-2023 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ #include #include #include #include #include #include "mvm.h" #include "sta.h" #include "iwl-io.h" #include "debugfs.h" #include "iwl-modparams.h" #include "iwl-drv.h" #include "fw/error-dump.h" #include "fw/api/phy-ctxt.h" static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char buf[16]; int pos, budget; if (!iwl_mvm_is_ctdp_supported(mvm)) return -EOPNOTSUPP; if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) return -EIO; mutex_lock(&mvm->mutex); budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); mutex_unlock(&mvm->mutex); if (budget < 0) return budget; pos = scnprintf(buf, sizeof(buf), "%d\n", budget); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret; bool force; if (!kstrtobool(buf, &force)) IWL_DEBUG_INFO(mvm, "force start is %d [0=disabled, 1=enabled]\n", force); /* we allow skipping cap support check and force stop ctdp * statistics collection and with guerantee that it is * safe to use. */ if (!force && !iwl_mvm_is_ctdp_supported(mvm)) return -EOPNOTSUPP; if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) return -EIO; mutex_lock(&mvm->mutex); ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); mutex_unlock(&mvm->mutex); return ret ?: count; } static ssize_t iwl_dbgfs_start_ctdp_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret; bool force; if (!kstrtobool(buf, &force)) IWL_DEBUG_INFO(mvm, "force start is %d [0=disabled, 1=enabled]\n", force); /* we allow skipping cap support check and force enable ctdp * for statistics collection and with guerantee that it is * safe to use. */ if (!force && !iwl_mvm_is_ctdp_supported(mvm)) return -EOPNOTSUPP; if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) return -EIO; mutex_lock(&mvm->mutex); ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, 0); mutex_unlock(&mvm->mutex); return ret ?: count; } static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) return -EIO; iwl_mvm_enter_ctkill(mvm); return count; } static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret; u32 flush_arg; if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) return -EIO; if (kstrtou32(buf, 0, &flush_arg)) return -EINVAL; if (iwl_mvm_has_new_tx_api(mvm)) { IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING all tids queues on sta_id = %d\n", flush_arg); mutex_lock(&mvm->mutex); ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF) ? : count; mutex_unlock(&mvm->mutex); return ret; } IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", flush_arg); mutex_lock(&mvm->mutex); ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count; mutex_unlock(&mvm->mutex); return ret; } static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; const struct fw_img *img; unsigned int ofs, len; size_t ret; u8 *ptr; if (!iwl_mvm_firmware_running(mvm)) return -EINVAL; /* default is to dump the entire data segment */ img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; len = img->sec[IWL_UCODE_SECTION_DATA].len; if (mvm->dbgfs_sram_len) { ofs = mvm->dbgfs_sram_offset; len = mvm->dbgfs_sram_len; } ptr = kzalloc(len, GFP_KERNEL); if (!ptr) return -ENOMEM; iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); kfree(ptr); return ret; } static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { const struct fw_img *img; u32 offset, len; u32 img_offset, img_len; if (!iwl_mvm_firmware_running(mvm)) return -EINVAL; img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; img_len = img->sec[IWL_UCODE_SECTION_DATA].len; if (sscanf(buf, "%x,%x", &offset, &len) == 2) { if ((offset & 0x3) || (len & 0x3)) return -EINVAL; if (offset + len > img_offset + img_len) return -EINVAL; mvm->dbgfs_sram_offset = offset; mvm->dbgfs_sram_len = len; } else { mvm->dbgfs_sram_offset = 0; mvm->dbgfs_sram_len = 0; } return count; } static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char buf[16]; int pos; if (!mvm->temperature_test) pos = scnprintf(buf, sizeof(buf), "disabled\n"); else pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } /* * Set NIC Temperature * Cause the driver to ignore the actual NIC temperature reported by the FW * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE */ static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int temperature; if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) return -EIO; if (kstrtoint(buf, 10, &temperature)) return -EINVAL; /* not a legal temperature */ if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) return -EINVAL; mutex_lock(&mvm->mutex); if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { if (!mvm->temperature_test) goto out; mvm->temperature_test = false; /* Since we can't read the temp while awake, just set * it to zero until we get the next RX stats from the * firmware. */ mvm->temperature = 0; } else { mvm->temperature_test = true; mvm->temperature = temperature; } IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", mvm->temperature_test ? "En" : "Dis", mvm->temperature); /* handle the temperature change */ iwl_mvm_tt_handler(mvm); out: mutex_unlock(&mvm->mutex); return count; } static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char buf[16]; int pos, ret; s32 temp; if (!iwl_mvm_firmware_running(mvm)) return -EIO; mutex_lock(&mvm->mutex); ret = iwl_mvm_get_temp(mvm, &temp); mutex_unlock(&mvm->mutex); if (ret) return -EIO; pos = scnprintf(buf, sizeof(buf), "%d\n", temp); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } #ifdef CONFIG_ACPI static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char buf[256]; int pos = 0; int bufsz = sizeof(buf); int tbl_idx; if (!iwl_mvm_firmware_running(mvm)) return -EIO; mutex_lock(&mvm->mutex); tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); if (tbl_idx < 0) { mutex_unlock(&mvm->mutex); return tbl_idx; } if (!tbl_idx) { pos = scnprintf(buf, bufsz, "SAR geographic profile disabled\n"); } else { pos += scnprintf(buf + pos, bufsz - pos, "Use geographic profile %d\n", tbl_idx); pos += scnprintf(buf + pos, bufsz - pos, "2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0], mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1], mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max); pos += scnprintf(buf + pos, bufsz - pos, "5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0], mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1], mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max); } mutex_unlock(&mvm->mutex); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; int err, pos; char buf[12]; u32 value; err = iwl_bios_get_dsm(&mvm->fwrt, DSM_FUNC_ENABLE_6E, &value); if (err) return err; pos = sprintf(buf, "0x%08x\n", value); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } #endif static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; struct ieee80211_sta *sta; char buf[400]; int i, pos = 0, bufsz = sizeof(buf); mutex_lock(&mvm->mutex); for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], lockdep_is_held(&mvm->mutex)); if (!sta) pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); else if (IS_ERR(sta)) pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", PTR_ERR(sta)); else pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", sta->addr); } mutex_unlock(&mvm->mutex); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta, struct iwl_mvm_sta *mvmsta, struct iwl_mvm *mvm, struct iwl_mvm_link_sta *mvm_link_sta, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw; static const size_t bufsz = 2048; char *buff; int desc = 0; ssize_t ret; buff = kmalloc(bufsz, GFP_KERNEL); if (!buff) return -ENOMEM; desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", lq_sta->pers.sta_id); desc += scnprintf(buff + desc, bufsz - desc, "fixed rate 0x%X\n", lq_sta->pers.dbg_fixed_rate); desc += scnprintf(buff + desc, bufsz - desc, "A-MPDU size limit %d\n", lq_sta->pers.dbg_agg_frame_count_lim); desc += scnprintf(buff + desc, bufsz - desc, "valid_tx_ant %s%s\n", (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : ""); desc += scnprintf(buff + desc, bufsz - desc, "last tx rate=0x%X ", lq_sta->last_rate_n_flags); desc += rs_pretty_print_rate(buff + desc, bufsz - desc, lq_sta->last_rate_n_flags); if (desc < bufsz - 1) buff[desc++] = '\n'; ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); kfree(buff); return ret; } static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta *link_sta, struct iwl_mvm_sta *mvmsta, struct iwl_mvm *mvm, struct iwl_mvm_link_sta *mvm_link_sta, char *buf, size_t count, loff_t *ppos) { int i; u16 amsdu_len; if (kstrtou16(buf, 0, &amsdu_len)) return -EINVAL; /* only change from debug set <-> debug unset */ if (amsdu_len && mvm_link_sta->orig_amsdu_len) return -EBUSY; if (amsdu_len) { mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len; link_sta->agg.max_amsdu_len = amsdu_len; link_sta->agg.max_amsdu_len = amsdu_len; for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++) link_sta->agg.max_tid_amsdu_len[i] = amsdu_len; } else { link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len; mvm_link_sta->orig_amsdu_len = 0; } ieee80211_sta_recalc_aggregates(link_sta->sta); return count; } static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta, struct iwl_mvm_sta *mvmsta, struct iwl_mvm *mvm, struct iwl_mvm_link_sta *mvm_link_sta, char __user *user_buf, size_t count, loff_t *ppos) { char buf[32]; int pos; pos = scnprintf(buf, sizeof(buf), "current %d ", link_sta->agg.max_amsdu_len); pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", mvm_link_sta->orig_amsdu_len); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char buf[64]; int bufsz = sizeof(buf); int pos = 0; pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", mvm->disable_power_off); pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", mvm->disable_power_off_d3); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret, val; if (!iwl_mvm_firmware_running(mvm)) return -EIO; if (!strncmp("disable_power_off_d0=", buf, 21)) { if (sscanf(buf + 21, "%d", &val) != 1) return -EINVAL; mvm->disable_power_off = val; } else if (!strncmp("disable_power_off_d3=", buf, 21)) { if (sscanf(buf + 21, "%d", &val) != 1) return -EINVAL; mvm->disable_power_off_d3 = val; } else { return -EINVAL; } mutex_lock(&mvm->mutex); ret = iwl_mvm_power_update_device(mvm); mutex_unlock(&mvm->mutex); return ret ?: count; } static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char *buff, *pos, *endpos; static const size_t bufsz = 1024; int ret; buff = kmalloc(bufsz, GFP_KERNEL); if (!buff) return -ENOMEM; pos = buff; endpos = pos + bufsz; pos += scnprintf(pos, endpos - pos, "FW id: %s\n", mvm->fwrt.fw->fw_version); pos += scnprintf(pos, endpos - pos, "FW: %s\n", mvm->fwrt.fw->human_readable); pos += scnprintf(pos, endpos - pos, "Device: %s\n", mvm->fwrt.trans->name); pos += scnprintf(pos, endpos - pos, "Bus: %s\n", #if defined(__linux__) mvm->fwrt.dev->bus->name); #elif defined(__FreeBSD__) ""); #endif ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); kfree(buff); return ret; } static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; struct iwl_mvm_tas_status_resp tas_rsp; struct iwl_mvm_tas_status_resp *rsp = &tas_rsp; static const size_t bufsz = 1024; char *buff, *pos, *endpos; 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", }; 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", }; struct iwl_host_cmd hcmd = { .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS), .flags = CMD_WANT_SKB, .len = { 0, }, .data = { NULL, }, }; int ret, i, tmp; bool tas_enabled = false; unsigned long dyn_status; if (!iwl_mvm_firmware_running(mvm)) return -ENODEV; mutex_lock(&mvm->mutex); ret = iwl_mvm_send_cmd(mvm, &hcmd); mutex_unlock(&mvm->mutex); if (ret < 0) return ret; buff = kzalloc(bufsz, GFP_KERNEL); if (!buff) return -ENOMEM; pos = buff; endpos = pos + bufsz; rsp = (void *)hcmd.resp_pkt->data; pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n"); for (i = 0; i < rsp->in_dual_radio + 1; i++) { if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID && rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) { pos += scnprintf(pos, endpos - pos, "\tON for "); switch (rsp->tas_status_mac[i].band) { case TAS_LMAC_BAND_HB: pos += scnprintf(pos, endpos - pos, "HB\n"); break; case TAS_LMAC_BAND_LB: pos += scnprintf(pos, endpos - pos, "LB\n"); break; case TAS_LMAC_BAND_UHB: pos += scnprintf(pos, endpos - pos, "UHB\n"); break; case TAS_LMAC_BAND_INVALID: pos += scnprintf(pos, endpos - pos, "INVALID BAND\n"); break; default: pos += scnprintf(pos, endpos - pos, "Unsupported band (%d)\n", rsp->tas_status_mac[i].band); goto out; } tas_enabled = true; } } if (!tas_enabled) pos += scnprintf(pos, endpos - pos, "\tOFF\n"); pos += scnprintf(pos, endpos - pos, "TAS Report\n"); pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n", rsp->tas_fw_version); pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n", rsp->is_uhb_for_usa_enable ? "True" : "False"); pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n", le16_to_cpu(rsp->curr_mcc)); pos += scnprintf(pos, endpos - pos, "Block list entries:"); for (i = 0; i < IWL_WTAS_BLACK_LIST_MAX; i++) pos += scnprintf(pos, endpos - pos, " 0x%x", le16_to_cpu(rsp->block_list[i])); pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n", dmi_get_system_info(DMI_SYS_VENDOR) ?: ""); pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n", iwl_is_tas_approved() ? "YES" : "NO"); pos += scnprintf(pos, endpos - pos, "\tDo TAS Support Dual Radio?: %s\n", rsp->in_dual_radio ? "TRUE" : "FALSE"); for (i = 0; i < rsp->in_dual_radio + 1; i++) { if (rsp->tas_status_mac[i].static_status == 0) { pos += scnprintf(pos, endpos - pos, "Static status: disabled\n"); pos += scnprintf(pos, endpos - pos, "Static disabled reason: %s (0)\n", tas_dis_reason[0]); goto out; } pos += scnprintf(pos, endpos - pos, "TAS status for "); switch (rsp->tas_status_mac[i].band) { case TAS_LMAC_BAND_HB: pos += scnprintf(pos, endpos - pos, "High band\n"); break; case TAS_LMAC_BAND_LB: pos += scnprintf(pos, endpos - pos, "Low band\n"); break; case TAS_LMAC_BAND_UHB: pos += scnprintf(pos, endpos - pos, "Ultra high band\n"); break; case TAS_LMAC_BAND_INVALID: pos += scnprintf(pos, endpos - pos, "INVALID band\n"); break; default: pos += scnprintf(pos, endpos - pos, "Unsupported band (%d)\n", rsp->tas_status_mac[i].band); goto out; } pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n", rsp->tas_status_mac[i].static_status ? "En" : "Dis"); pos += scnprintf(pos, endpos - pos, "\tStatic Disabled Reason: "); if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX) pos += scnprintf(pos, endpos - pos, "%s (%d)\n", tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason], rsp->tas_status_mac[i].static_dis_reason); else pos += scnprintf(pos, endpos - pos, "unsupported value (%d)\n", rsp->tas_status_mac[i].static_dis_reason); pos += scnprintf(pos, endpos - pos, "Dynamic status:\n"); dyn_status = (rsp->tas_status_mac[i].dynamic_status); for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) { if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX) pos += scnprintf(pos, endpos - pos, "\t%s (%d)\n", tas_current_status[tmp], tmp); } pos += scnprintf(pos, endpos - pos, "Is near disconnection?: %s\n", rsp->tas_status_mac[i].near_disconnection ? "True" : "False"); tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit); pos += scnprintf(pos, endpos - pos, "Max. regulatory pwr limit (dBm): %d.%03d\n", tmp / 8, 125 * (tmp % 8)); tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit); pos += scnprintf(pos, endpos - pos, "SAR limit (dBm): %d.%03d\n", tmp / 8, 125 * (tmp % 8)); } out: ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); kfree(buff); iwl_free_resp(&hcmd); return ret; } static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; char *buf; size_t bufsz; int pos; ssize_t ret; bufsz = mvm->fw->phy_integration_ver_len + 2; buf = kmalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, mvm->fw->phy_integration_ver); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } #define PRINT_STATS_LE32(_struct, _memb) \ pos += scnprintf(buf + pos, bufsz - pos, \ fmt_table, #_memb, \ le32_to_cpu(_struct->_memb)) static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; static const char *fmt_table = "\t%-30s %10u\n"; static const char *fmt_header = "%-32s\n"; int pos = 0; char *buf; int ret; size_t bufsz; u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(SYSTEM_GROUP, SYSTEM_STATISTICS_CMD), IWL_FW_CMD_VER_UNKNOWN); if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) return -EOPNOTSUPP; if (iwl_mvm_has_new_rx_stats_api(mvm)) bufsz = ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) + (4 * 33) + 1; else /* 43 = size of each data line; 33 = size of each header */ bufsz = ((sizeof(struct mvm_statistics_rx_v3) / sizeof(__le32)) * 43) + (4 * 33) + 1; buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; mutex_lock(&mvm->mutex); if (iwl_mvm_firmware_running(mvm)) iwl_mvm_request_statistics(mvm, false); pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - OFDM"); if (!iwl_mvm_has_new_rx_stats_api(mvm)) { struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; PRINT_STATS_LE32(ofdm, ina_cnt); PRINT_STATS_LE32(ofdm, fina_cnt); PRINT_STATS_LE32(ofdm, plcp_err); PRINT_STATS_LE32(ofdm, crc32_err); PRINT_STATS_LE32(ofdm, overrun_err); PRINT_STATS_LE32(ofdm, early_overrun_err); PRINT_STATS_LE32(ofdm, crc32_good); PRINT_STATS_LE32(ofdm, false_alarm_cnt); PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); PRINT_STATS_LE32(ofdm, sfd_timeout); PRINT_STATS_LE32(ofdm, fina_timeout); PRINT_STATS_LE32(ofdm, unresponded_rts); PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); PRINT_STATS_LE32(ofdm, sent_ack_cnt); PRINT_STATS_LE32(ofdm, sent_cts_cnt); PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); PRINT_STATS_LE32(ofdm, dsp_self_kill); PRINT_STATS_LE32(ofdm, mh_format_err); PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); PRINT_STATS_LE32(ofdm, reserved); } else { struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; PRINT_STATS_LE32(ofdm, unresponded_rts); PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); PRINT_STATS_LE32(ofdm, dsp_self_kill); PRINT_STATS_LE32(ofdm, reserved); } pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - CCK"); if (!iwl_mvm_has_new_rx_stats_api(mvm)) { struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; PRINT_STATS_LE32(cck, ina_cnt); PRINT_STATS_LE32(cck, fina_cnt); PRINT_STATS_LE32(cck, plcp_err); PRINT_STATS_LE32(cck, crc32_err); PRINT_STATS_LE32(cck, overrun_err); PRINT_STATS_LE32(cck, early_overrun_err); PRINT_STATS_LE32(cck, crc32_good); PRINT_STATS_LE32(cck, false_alarm_cnt); PRINT_STATS_LE32(cck, fina_sync_err_cnt); PRINT_STATS_LE32(cck, sfd_timeout); PRINT_STATS_LE32(cck, fina_timeout); PRINT_STATS_LE32(cck, unresponded_rts); PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); PRINT_STATS_LE32(cck, sent_ack_cnt); PRINT_STATS_LE32(cck, sent_cts_cnt); PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); PRINT_STATS_LE32(cck, dsp_self_kill); PRINT_STATS_LE32(cck, mh_format_err); PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); PRINT_STATS_LE32(cck, reserved); } else { struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; PRINT_STATS_LE32(cck, unresponded_rts); PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); PRINT_STATS_LE32(cck, dsp_self_kill); PRINT_STATS_LE32(cck, reserved); } pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - GENERAL"); if (!iwl_mvm_has_new_rx_stats_api(mvm)) { struct mvm_statistics_rx_non_phy_v3 *general = &mvm->rx_stats_v3.general; PRINT_STATS_LE32(general, bogus_cts); PRINT_STATS_LE32(general, bogus_ack); PRINT_STATS_LE32(general, non_bssid_frames); PRINT_STATS_LE32(general, filtered_frames); PRINT_STATS_LE32(general, non_channel_beacons); PRINT_STATS_LE32(general, channel_beacons); PRINT_STATS_LE32(general, num_missed_bcon); PRINT_STATS_LE32(general, adc_rx_saturation_time); PRINT_STATS_LE32(general, ina_detection_search_time); PRINT_STATS_LE32(general, beacon_silence_rssi_a); PRINT_STATS_LE32(general, beacon_silence_rssi_b); PRINT_STATS_LE32(general, beacon_silence_rssi_c); PRINT_STATS_LE32(general, interference_data_flag); PRINT_STATS_LE32(general, channel_load); PRINT_STATS_LE32(general, dsp_false_alarms); PRINT_STATS_LE32(general, beacon_rssi_a); PRINT_STATS_LE32(general, beacon_rssi_b); PRINT_STATS_LE32(general, beacon_rssi_c); PRINT_STATS_LE32(general, beacon_energy_a); PRINT_STATS_LE32(general, beacon_energy_b); PRINT_STATS_LE32(general, beacon_energy_c); PRINT_STATS_LE32(general, num_bt_kills); PRINT_STATS_LE32(general, mac_id); PRINT_STATS_LE32(general, directed_data_mpdu); } else { struct mvm_statistics_rx_non_phy *general = &mvm->rx_stats.general; PRINT_STATS_LE32(general, bogus_cts); PRINT_STATS_LE32(general, bogus_ack); PRINT_STATS_LE32(general, non_channel_beacons); PRINT_STATS_LE32(general, channel_beacons); PRINT_STATS_LE32(general, num_missed_bcon); PRINT_STATS_LE32(general, adc_rx_saturation_time); PRINT_STATS_LE32(general, ina_detection_search_time); PRINT_STATS_LE32(general, beacon_silence_rssi_a); PRINT_STATS_LE32(general, beacon_silence_rssi_b); PRINT_STATS_LE32(general, beacon_silence_rssi_c); PRINT_STATS_LE32(general, interference_data_flag); PRINT_STATS_LE32(general, channel_load); PRINT_STATS_LE32(general, beacon_rssi_a); PRINT_STATS_LE32(general, beacon_rssi_b); PRINT_STATS_LE32(general, beacon_rssi_c); PRINT_STATS_LE32(general, beacon_energy_a); PRINT_STATS_LE32(general, beacon_energy_b); PRINT_STATS_LE32(general, beacon_energy_c); PRINT_STATS_LE32(general, num_bt_kills); PRINT_STATS_LE32(general, mac_id); } pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Rx - HT"); if (!iwl_mvm_has_new_rx_stats_api(mvm)) { struct mvm_statistics_rx_ht_phy_v1 *ht = &mvm->rx_stats_v3.ofdm_ht; PRINT_STATS_LE32(ht, plcp_err); PRINT_STATS_LE32(ht, overrun_err); PRINT_STATS_LE32(ht, early_overrun_err); PRINT_STATS_LE32(ht, crc32_good); PRINT_STATS_LE32(ht, crc32_err); PRINT_STATS_LE32(ht, mh_format_err); PRINT_STATS_LE32(ht, agg_crc32_good); PRINT_STATS_LE32(ht, agg_mpdu_cnt); PRINT_STATS_LE32(ht, agg_cnt); PRINT_STATS_LE32(ht, unsupport_mcs); } else { struct mvm_statistics_rx_ht_phy *ht = &mvm->rx_stats.ofdm_ht; PRINT_STATS_LE32(ht, mh_format_err); PRINT_STATS_LE32(ht, agg_mpdu_cnt); PRINT_STATS_LE32(ht, agg_cnt); PRINT_STATS_LE32(ht, unsupport_mcs); } mutex_unlock(&mvm->mutex); ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); kfree(buf); return ret; } #undef PRINT_STAT_LE32 static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { char *buff, *pos, *endpos; int ret; size_t bufsz; int i; struct iwl_mvm_vif *mvmvif; struct ieee80211_vif *vif; struct iwl_mvm *mvm = file->private_data; u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(SYSTEM_GROUP, SYSTEM_STATISTICS_CMD), IWL_FW_CMD_VER_UNKNOWN); /* in case of a wrong cmd version, allocate buffer only for error msg */ bufsz = (cmd_ver == 1) ? 4096 : 64; buff = kzalloc(bufsz, GFP_KERNEL); if (!buff) return -ENOMEM; pos = buff; endpos = pos + bufsz; if (cmd_ver != 1) { pos += scnprintf(pos, endpos - pos, "System stats not supported:%d\n", cmd_ver); goto send_out; } mutex_lock(&mvm->mutex); if (iwl_mvm_firmware_running(mvm)) iwl_mvm_request_statistics(mvm, false); for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); if (!vif) continue; if (vif->type == NL80211_IFTYPE_STATION) break; } if (i == NUM_MAC_INDEX_DRIVER || !vif) { pos += scnprintf(pos, endpos - pos, "vif is NULL\n"); goto release_send_out; } mvmvif = iwl_mvm_vif_from_mac80211(vif); if (!mvmvif) { pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n"); goto release_send_out; } for_each_mvm_vif_valid_link(mvmvif, i) { struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i]; pos += scnprintf(pos, endpos - pos, "link_id %d", i); pos += scnprintf(pos, endpos - pos, " num_beacons %d", link_info->beacon_stats.num_beacons); pos += scnprintf(pos, endpos - pos, " accu_num_beacons %d", link_info->beacon_stats.accu_num_beacons); pos += scnprintf(pos, endpos - pos, " avg_signal %d\n", link_info->beacon_stats.avg_signal); } pos += scnprintf(pos, endpos - pos, "radio_stats.rx_time %lld\n", mvm->radio_stats.rx_time); pos += scnprintf(pos, endpos - pos, "radio_stats.tx_time %lld\n", mvm->radio_stats.tx_time); pos += scnprintf(pos, endpos - pos, "accu_radio_stats.rx_time %lld\n", mvm->accu_radio_stats.rx_time); pos += scnprintf(pos, endpos - pos, "accu_radio_stats.tx_time %lld\n", mvm->accu_radio_stats.tx_time); release_send_out: mutex_unlock(&mvm->mutex); send_out: ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); kfree(buff); return ret; } static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, char __user *user_buf, size_t count, loff_t *ppos, struct iwl_mvm_frame_stats *stats) { char *buff, *pos, *endpos; int idx, i; int ret; static const size_t bufsz = 1024; buff = kmalloc(bufsz, GFP_KERNEL); if (!buff) return -ENOMEM; spin_lock_bh(&mvm->drv_stats_lock); pos = buff; endpos = pos + bufsz; pos += scnprintf(pos, endpos - pos, "Legacy/HT/VHT\t:\t%d/%d/%d\n", stats->legacy_frames, stats->ht_frames, stats->vht_frames); pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", stats->bw_20_frames, stats->bw_40_frames, stats->bw_80_frames); pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", stats->ngi_frames, stats->sgi_frames); pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", stats->siso_frames, stats->mimo2_frames); pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", stats->fail_frames, stats->success_frames); pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", stats->agg_frames); pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", stats->ampdu_count); pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", stats->ampdu_count > 0 ? (stats->agg_frames / stats->ampdu_count) : 0); pos += scnprintf(pos, endpos - pos, "Last Rates\n"); idx = stats->last_frame_idx - 1; for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); if (stats->last_rates[idx] == 0) continue; pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", (int)(ARRAY_SIZE(stats->last_rates) - i)); pos += rs_pretty_print_rate_v1(pos, endpos - pos, stats->last_rates[idx]); if (pos < endpos - 1) *pos++ = '\n'; } spin_unlock_bh(&mvm->drv_stats_lock); ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); kfree(buff); return ret; } static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, &mvm->drv_rx_stats); } static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int __maybe_unused ret; if (!iwl_mvm_firmware_running(mvm)) return -EIO; mutex_lock(&mvm->mutex); /* allow one more restart that we're provoking here */ if (mvm->fw_restart >= 0) mvm->fw_restart++; if (count == 6 && !strcmp(buf, "nolog\n")) { set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); } /* take the return value to make compiler happy - it will fail anyway */ ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(LONG_GROUP, REPLY_ERROR), 0, 0, NULL); mutex_unlock(&mvm->mutex); return count; } static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { if (!iwl_mvm_firmware_running(mvm)) return -EIO; IWL_ERR(mvm, "Triggering an NMI from debugfs\n"); if (count == 6 && !strcmp(buf, "nolog\n")) set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); iwl_force_nmi(mvm->trans); return count; } static ssize_t iwl_dbgfs_scan_ant_rxchain_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; int pos = 0; char buf[32]; const size_t bufsz = sizeof(buf); /* print which antennas were set for the scan command by the user */ pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); if (mvm->scan_rx_ant & ANT_A) pos += scnprintf(buf + pos, bufsz - pos, "A"); if (mvm->scan_rx_ant & ANT_B) pos += scnprintf(buf + pos, bufsz - pos, "B"); pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { u8 scan_rx_ant; if (!iwl_mvm_firmware_running(mvm)) return -EIO; if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) return -EINVAL; if (scan_rx_ant > ANT_ABC) return -EINVAL; if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) return -EINVAL; if (mvm->scan_rx_ant != scan_rx_ant) { mvm->scan_rx_ant = scan_rx_ant; if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) iwl_mvm_config_scan(mvm); } return count; } static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { struct iwl_rss_config_cmd cmd = { .flags = cpu_to_le32(IWL_RSS_ENABLE), .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | IWL_RSS_HASH_TYPE_IPV4_UDP | IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | IWL_RSS_HASH_TYPE_IPV6_TCP | IWL_RSS_HASH_TYPE_IPV6_UDP | IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, }; int ret, i, num_repeats, nbytes = count / 2; ret = hex2bin(cmd.indirection_table, buf, nbytes); if (ret) return ret; /* * The input is the redirection table, partial or full. * Repeat the pattern if needed. * For example, input of 01020F will be repeated 42 times, * indirecting RSS hash results to queues 1, 2, 15 (skipping * queues 3 - 14). */ num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; for (i = 1; i < num_repeats; i++) memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, nbytes); /* handle cut in the middle pattern for the last places */ memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, ARRAY_SIZE(cmd.indirection_table) % nbytes); netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); mutex_lock(&mvm->mutex); if (iwl_mvm_firmware_running(mvm)) ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd); else ret = 0; mutex_unlock(&mvm->mutex); return ret ?: count; } static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { struct iwl_op_mode *opmode = container_of((void *)mvm, struct iwl_op_mode, op_mode_specific); struct iwl_rx_cmd_buffer rxb = { ._rx_page_order = 0, .truesize = 0, /* not used */ ._offset = 0, }; struct iwl_rx_packet *pkt; int bin_len = count / 2; int ret = -EINVAL; if (!iwl_mvm_firmware_running(mvm)) return -EIO; /* supporting only MQ RX */ if (!mvm->trans->trans_cfg->mq_rx_supported) return -EOPNOTSUPP; rxb._page = alloc_pages(GFP_ATOMIC, 0); if (!rxb._page) return -ENOMEM; pkt = rxb_addr(&rxb); ret = hex2bin(page_address(rxb._page), buf, bin_len); if (ret) goto out; /* avoid invalid memory access and malformed packet */ if (bin_len < sizeof(*pkt) || bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) goto out; local_bh_disable(); iwl_mvm_rx_mq(opmode, NULL, &rxb); local_bh_enable(); ret = 0; out: iwl_free_rxb(&rxb); return ret ?: count; } static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) { struct ieee80211_vif *vif; struct iwl_mvm_vif *mvmvif; struct sk_buff *beacon; struct ieee80211_tx_info *info; struct iwl_mac_beacon_cmd beacon_cmd = {}; unsigned int link_id; u8 rate; int i; len /= 2; /* Element len should be represented by u8 */ if (len >= U8_MAX) return -EINVAL; if (!iwl_mvm_firmware_running(mvm)) return -EIO; if (!iwl_mvm_has_new_tx_api(mvm) && !fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) return -EINVAL; mutex_lock(&mvm->mutex); for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); if (!vif) continue; if (vif->type == NL80211_IFTYPE_AP) break; } if (i == NUM_MAC_INDEX_DRIVER || !vif) goto out_err; mvm->hw->extra_beacon_tailroom = len; beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0); if (!beacon) goto out_err; if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { dev_kfree_skb(beacon); goto out_err; } mvm->beacon_inject_active = true; mvmvif = iwl_mvm_vif_from_mac80211(vif); info = IEEE80211_SKB_CB(beacon); rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); for_each_mvm_vif_valid_link(mvmvif, link_id) { beacon_cmd.flags = cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, rate)); beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12) beacon_cmd.link_id = cpu_to_le32(mvmvif->link[link_id]->fw_link_id); else beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id); iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, &beacon_cmd.tim_size, beacon->data, beacon->len); if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) >= 14) { u32 offset = iwl_mvm_find_ie_offset(beacon->data, WLAN_EID_S1G_TWT, beacon->len); beacon_cmd.btwt_offset = cpu_to_le32(offset); } iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, sizeof(beacon_cmd)); } mutex_unlock(&mvm->mutex); dev_kfree_skb(beacon); return 0; out_err: mutex_unlock(&mvm->mutex); return -EINVAL; } static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); mvm->hw->extra_beacon_tailroom = 0; return ret ?: count; } static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); mvm->hw->extra_beacon_tailroom = 0; mvm->beacon_inject_active = false; return ret ?: count; } static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; int conf; char buf[8]; const size_t bufsz = sizeof(buf); int pos = 0; mutex_lock(&mvm->mutex); conf = mvm->fwrt.dump.conf; mutex_unlock(&mvm->mutex); pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { unsigned int conf_id; int ret; if (!iwl_mvm_firmware_running(mvm)) return -EIO; ret = kstrtouint(buf, 0, &conf_id); if (ret) return ret; if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) return -EINVAL; mutex_lock(&mvm->mutex); ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); mutex_unlock(&mvm->mutex); return ret ?: count; } static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { if (count == 0) return 0; iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, NULL); iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, (count - 1), NULL); return count; } static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) return -EOPNOTSUPP; mutex_lock(&mvm->mutex); iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt); mutex_unlock(&mvm->mutex); return count; } static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { u32 timepoint; if (kstrtou32(buf, 0, &timepoint)) return -EINVAL; if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || timepoint >= IWL_FW_INI_TIME_POINT_NUM) return -EINVAL; iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); return count; } #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ debugfs_create_file(alias, mode, parent, mvm, \ &iwl_dbgfs_##name##_ops); \ } while (0) #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) static ssize_t _iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *, struct iwl_mvm_sta *, struct iwl_mvm *, struct iwl_mvm_link_sta *, char *, size_t, loff_t *), struct file *file, char *buf, size_t buf_size, loff_t *ppos) { struct ieee80211_link_sta *link_sta = file->private_data; struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta); struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm; struct iwl_mvm_link_sta *mvm_link_sta; ssize_t ret; mutex_lock(&mvm->mutex); mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id], lockdep_is_held(&mvm->mutex)); if (WARN_ON(!mvm_link_sta)) { mutex_unlock(&mvm->mutex); return -ENODEV; } ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos); mutex_unlock(&mvm->mutex); return ret; } static ssize_t _iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *, struct iwl_mvm_sta *, struct iwl_mvm *, struct iwl_mvm_link_sta *, char __user *, size_t, loff_t *), struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ieee80211_link_sta *link_sta = file->private_data; struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta); struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm; struct iwl_mvm_link_sta *mvm_link_sta; ssize_t ret; mutex_lock(&mvm->mutex); mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id], lockdep_is_held(&mvm->mutex)); if (WARN_ON(!mvm_link_sta)) { mutex_unlock(&mvm->mutex); return -ENODEV; } ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos); mutex_unlock(&mvm->mutex); return ret; } #define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \ static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \ const char __user *user_buf, \ size_t count, loff_t *ppos) \ { \ char buf[buflen] = {}; \ size_t buf_size = min(count, sizeof(buf) - 1); \ \ if (copy_from_user(buf, user_buf, buf_size)) \ return -EFAULT; \ \ return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \ file, \ buf, buf_size, ppos); \ } \ #define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \ char __user *user_buf, \ size_t count, loff_t *ppos) \ { \ return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \ file, \ user_buf, count, ppos); \ } \ #define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \ MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \ static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ .write = _iwl_dbgfs_link_sta_##name##_write, \ .open = simple_open, \ .llseek = generic_file_llseek, \ } #define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \ MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ .read = _iwl_dbgfs_link_sta_##name##_read, \ .open = simple_open, \ .llseek = generic_file_llseek, \ } #define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \ MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \ static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ .read = _iwl_dbgfs_link_sta_##name##_read, \ .write = _iwl_dbgfs_link_sta_##name##_write, \ .open = simple_open, \ .llseek = generic_file_llseek, \ } #define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \ debugfs_create_file(alias, mode, parent, link_sta, \ &iwl_dbgfs_link_sta_##name##_ops) #define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \ MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode) static ssize_t iwl_dbgfs_prph_reg_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; int pos = 0; char buf[32]; const size_t bufsz = sizeof(buf); if (!mvm->dbgfs_prph_reg_addr) return -EINVAL; pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", mvm->dbgfs_prph_reg_addr, iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { u8 args; u32 value; args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); /* if we only want to set the reg address - nothing more to do */ if (args == 1) goto out; /* otherwise, make sure we have both address and value */ if (args != 2) return -EINVAL; iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); out: return count; } static ssize_t iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret; if (!iwl_mvm_firmware_running(mvm)) return -EIO; mutex_lock(&mvm->mutex); ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); mutex_unlock(&mvm->mutex); return ret ?: count; } struct iwl_mvm_sniffer_apply { struct iwl_mvm *mvm; u8 *bssid; u16 aid; }; static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, struct iwl_rx_packet *pkt, void *data) { struct iwl_mvm_sniffer_apply *apply = data; apply->mvm->cur_aid = cpu_to_le16(apply->aid); memcpy(apply->mvm->cur_bssid, apply->bssid, sizeof(apply->mvm->cur_bssid)); return true; } static ssize_t iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { struct iwl_notification_wait wait; struct iwl_he_monitor_cmd he_mon_cmd = {}; struct iwl_mvm_sniffer_apply apply = { .mvm = mvm, }; u16 wait_cmds[] = { WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), }; u32 aid; int ret; if (!iwl_mvm_firmware_running(mvm)) return -EIO; ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); if (ret != 7) return -EINVAL; he_mon_cmd.aid = cpu_to_le16(aid); apply.aid = aid; apply.bssid = (void *)he_mon_cmd.bssid; mutex_lock(&mvm->mutex); /* * Use the notification waiter to get our function triggered * in sequence with other RX. This ensures that frames we get * on the RX queue _before_ the new configuration is applied * still have mvm->cur_aid pointing to the old AID, and that * frames on the RX queue _after_ the firmware processed the * new configuration (and sent the response, synchronously) * get mvm->cur_aid correctly set to the new AID. */ iwl_init_notification_wait(&mvm->notif_wait, &wait, wait_cmds, ARRAY_SIZE(wait_cmds), iwl_mvm_sniffer_apply, &apply); ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 0, sizeof(he_mon_cmd), &he_mon_cmd); /* no need to really wait, we already did anyway */ iwl_remove_notification(&mvm->notif_wait, &wait); mutex_unlock(&mvm->mutex); return ret ?: count; } static ssize_t iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; u8 buf[32]; int len; len = scnprintf(buf, sizeof(buf), "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], mvm->cur_bssid[4], mvm->cur_bssid[5]); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; unsigned int pos = 0; size_t bufsz = sizeof(buf); int i; mutex_lock(&mvm->mutex); for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", mvm->uapsd_noagg_bssids[i].addr); mutex_unlock(&mvm->mutex); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } static ssize_t iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret; struct iwl_ltr_config_cmd ltr_config = {0}; if (!iwl_mvm_firmware_running(mvm)) return -EIO; if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", <r_config.flags, <r_config.static_long, <r_config.static_short, <r_config.ltr_cfg_values[0], <r_config.ltr_cfg_values[1], <r_config.ltr_cfg_values[2], <r_config.ltr_cfg_values[3]) != 7) { return -EINVAL; } mutex_lock(&mvm->mutex); ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), <r_config); mutex_unlock(&mvm->mutex); if (ret) IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); return ret ?: count; } static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { int ret = 0; u16 op_id; if (kstrtou16(buf, 10, &op_id)) return -EINVAL; /* value zero triggers re-sending the default table to the device */ if (!op_id) { mutex_lock(&mvm->mutex); ret = iwl_rfi_send_config_cmd(mvm, NULL); mutex_unlock(&mvm->mutex); } else { ret = -EOPNOTSUPP; /* in the future a new table will be added */ } return ret ?: count; } /* The size computation is as follows: * each number needs at most 3 characters, number of rows is the size of * the table; So, need 5 chars for the "freq: " part and each tuple afterwards * needs 6 characters for numbers and 5 for the punctuation around. */ #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; struct iwl_rfi_freq_table_resp_cmd *resp; u32 status; char buf[IWL_RFI_BUF_SIZE]; int i, j, pos = 0; resp = iwl_rfi_get_freq_table(mvm); if (IS_ERR(resp)) return PTR_ERR(resp); status = le32_to_cpu(resp->status); if (status != RFI_FREQ_TABLE_OK) { scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); goto out; } for (i = 0; i < ARRAY_SIZE(resp->table); i++) { pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", resp->table[i].freq); for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "(%d, %d) ", resp->table[i].channels[j], resp->table[i].bands[j]); pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); } out: kfree(resp); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); /* Device wide debugfs entries */ MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8); MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); MVM_DEBUGFS_READ_FILE_OPS(nic_temp); MVM_DEBUGFS_READ_FILE_OPS(stations); MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data); MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats); MVM_DEBUGFS_READ_FILE_OPS(fw_ver); MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); MVM_DEBUGFS_READ_FILE_OPS(tas_get_status); MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64); MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); #ifdef CONFIG_ACPI MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable); #endif MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16); MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; struct iwl_dbg_mem_access_cmd cmd = {}; struct iwl_dbg_mem_access_rsp *rsp; struct iwl_host_cmd hcmd = { .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, .data = { &cmd, }, .len = { sizeof(cmd) }, }; size_t delta; ssize_t ret, len; if (!iwl_mvm_firmware_running(mvm)) return -EIO; hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); /* Take care of alignment of both the position and the length */ delta = *ppos & 0x3; cmd.addr = cpu_to_le32(*ppos - delta); cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); mutex_lock(&mvm->mutex); ret = iwl_mvm_send_cmd(mvm, &hcmd); mutex_unlock(&mvm->mutex); if (ret < 0) return ret; if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { ret = -EIO; goto out; } rsp = (void *)hcmd.resp_pkt->data; if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { ret = -ENXIO; goto out; } len = min((size_t)le32_to_cpu(rsp->len) << 2, iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); len = min(len - delta, count); if (len < 0) { ret = -EFAULT; goto out; } ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); *ppos += ret; out: iwl_free_resp(&hcmd); return ret; } static ssize_t iwl_dbgfs_mem_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; struct iwl_dbg_mem_access_cmd *cmd; struct iwl_dbg_mem_access_rsp *rsp; struct iwl_host_cmd hcmd = {}; size_t cmd_size; size_t data_size; u32 op, len; ssize_t ret; if (!iwl_mvm_firmware_running(mvm)) return -EIO; hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); if (*ppos & 0x3 || count < 4) { op = DEBUG_MEM_OP_WRITE_BYTES; len = min(count, (size_t)(4 - (*ppos & 0x3))); data_size = len; } else { op = DEBUG_MEM_OP_WRITE; len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); data_size = len << 2; } cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); cmd = kzalloc(cmd_size, GFP_KERNEL); if (!cmd) return -ENOMEM; cmd->op = cpu_to_le32(op); cmd->len = cpu_to_le32(len); cmd->addr = cpu_to_le32(*ppos); if (copy_from_user((void *)cmd->data, user_buf, data_size)) { kfree(cmd); return -EFAULT; } hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, hcmd.data[0] = (void *)cmd; hcmd.len[0] = cmd_size; mutex_lock(&mvm->mutex); ret = iwl_mvm_send_cmd(mvm, &hcmd); mutex_unlock(&mvm->mutex); kfree(cmd); if (ret < 0) return ret; if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { ret = -EIO; goto out; } rsp = (void *)hcmd.resp_pkt->data; if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { ret = -ENXIO; goto out; } ret = data_size; *ppos += ret; out: iwl_free_resp(&hcmd); return ret; } static const struct file_operations iwl_dbgfs_mem_ops = { .read = iwl_dbgfs_mem_read, .write = iwl_dbgfs_mem_write, .open = simple_open, .llseek = default_llseek, }; void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_link_sta *link_sta, struct dentry *dir) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); if (iwl_mvm_has_tlc_offload(mvm)) { MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400); } MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600); } void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) { struct dentry *bcast_dir __maybe_unused; spin_lock_init(&mvm->drv_stats_lock); MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); if (mvm->fw->phy_integration_ver) MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400); #ifdef CONFIG_ACPI MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400); #endif MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); debugfs_create_bool("enable_scan_iteration_notif", 0600, mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, &mvm->drop_bcn_ap_mode); MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); #ifdef CONFIG_PM_SLEEP MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, &mvm->d3_wake_sysassert); debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, &mvm->last_netdetect_scans); #endif debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, &mvm->ps_disabled); debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, &mvm->nvm_hw_blob); debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, &mvm->nvm_sw_blob); debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, &mvm->nvm_calib_blob); debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, &mvm->nvm_prod_blob); debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, &mvm->nvm_phy_sku_blob); debugfs_create_blob("nvm_reg", S_IRUSR, mvm->debugfs_dir, &mvm->nvm_reg_blob); debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, &iwl_dbgfs_mem_ops); debugfs_create_bool("rx_ts_ptp", 0600, mvm->debugfs_dir, &mvm->rx_ts_ptp); #if defined(__linux__) /* * Create a symlink with mac80211. It will be removed when mac80211 * exists (before the opmode exists which removes the target.) */ if (!IS_ERR(mvm->debugfs_dir)) { char buf[100]; snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf); } #endif }