| // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause | |
| /* | |
| * Copyright (C) 2012-2014, 2018-2020 Intel Corporation | |
| * Copyright (C) 2013-2014 Intel Mobile Communications GmbH | |
| * Copyright (C) 2015-2017 Intel Deutschland GmbH | |
| */ | |
| #include <net/mac80211.h> | |
| #include "iwl-debug.h" | |
| #include "iwl-io.h" | |
| #include "iwl-prph.h" | |
| #include "iwl-csr.h" | |
| #include "mvm.h" | |
| #include "fw/api/rs.h" | |
| #include "fw/img.h" | |
| /* | |
| * Will return 0 even if the cmd failed when RFKILL is asserted unless | |
| * CMD_WANT_SKB is set in cmd->flags. | |
| */ | |
| int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) | |
| { | |
| int ret; | |
| #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) | |
| if (WARN_ON(mvm->d3_test_active)) | |
| return -EIO; | |
| #endif | |
| /* | |
| * Synchronous commands from this op-mode must hold | |
| * the mutex, this ensures we don't try to send two | |
| * (or more) synchronous commands at a time. | |
| */ | |
| if (!(cmd->flags & CMD_ASYNC)) | |
| lockdep_assert_held(&mvm->mutex); | |
| ret = iwl_trans_send_cmd(mvm->trans, cmd); | |
| /* | |
| * If the caller wants the SKB, then don't hide any problems, the | |
| * caller might access the response buffer which will be NULL if | |
| * the command failed. | |
| */ | |
| if (cmd->flags & CMD_WANT_SKB) | |
| return ret; | |
| /* | |
| * Silently ignore failures if RFKILL is asserted or | |
| * we are in suspend\resume process | |
| */ | |
| if (!ret || ret == -ERFKILL || ret == -EHOSTDOWN) | |
| return 0; | |
| return ret; | |
| } | |
| int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id, | |
| u32 flags, u16 len, const void *data) | |
| { | |
| struct iwl_host_cmd cmd = { | |
| .id = id, | |
| .len = { len, }, | |
| .data = { data, }, | |
| .flags = flags, | |
| }; | |
| return iwl_mvm_send_cmd(mvm, &cmd); | |
| } | |
| /* | |
| * We assume that the caller set the status to the success value | |
| */ | |
| int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, | |
| u32 *status) | |
| { | |
| struct iwl_rx_packet *pkt; | |
| struct iwl_cmd_response *resp; | |
| int ret, resp_len; | |
| lockdep_assert_held(&mvm->mutex); | |
| #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) | |
| if (WARN_ON(mvm->d3_test_active)) | |
| return -EIO; | |
| #endif | |
| /* | |
| * Only synchronous commands can wait for status, | |
| * we use WANT_SKB so the caller can't. | |
| */ | |
| if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), | |
| "cmd flags %x", cmd->flags)) | |
| return -EINVAL; | |
| cmd->flags |= CMD_WANT_SKB; | |
| ret = iwl_trans_send_cmd(mvm->trans, cmd); | |
| if (ret == -ERFKILL) { | |
| /* | |
| * The command failed because of RFKILL, don't update | |
| * the status, leave it as success and return 0. | |
| */ | |
| return 0; | |
| } else if (ret) { | |
| return ret; | |
| } | |
| pkt = cmd->resp_pkt; | |
| resp_len = iwl_rx_packet_payload_len(pkt); | |
| if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
| ret = -EIO; | |
| goto out_free_resp; | |
| } | |
| resp = (void *)pkt->data; | |
| *status = le32_to_cpu(resp->status); | |
| out_free_resp: | |
| iwl_free_resp(cmd); | |
| return ret; | |
| } | |
| /* | |
| * We assume that the caller set the status to the sucess value | |
| */ | |
| int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len, | |
| const void *data, u32 *status) | |
| { | |
| struct iwl_host_cmd cmd = { | |
| .id = id, | |
| .len = { len, }, | |
| .data = { data, }, | |
| }; | |
| return iwl_mvm_send_cmd_status(mvm, &cmd, status); | |
| } | |
| #define IWL_DECLARE_RATE_INFO(r) \ | |
| [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP | |
| /* | |
| * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP | |
| */ | |
| static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { | |
| IWL_DECLARE_RATE_INFO(1), | |
| IWL_DECLARE_RATE_INFO(2), | |
| IWL_DECLARE_RATE_INFO(5), | |
| IWL_DECLARE_RATE_INFO(11), | |
| IWL_DECLARE_RATE_INFO(6), | |
| IWL_DECLARE_RATE_INFO(9), | |
| IWL_DECLARE_RATE_INFO(12), | |
| IWL_DECLARE_RATE_INFO(18), | |
| IWL_DECLARE_RATE_INFO(24), | |
| IWL_DECLARE_RATE_INFO(36), | |
| IWL_DECLARE_RATE_INFO(48), | |
| IWL_DECLARE_RATE_INFO(54), | |
| }; | |
| int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, | |
| enum nl80211_band band) | |
| { | |
| int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; | |
| int idx; | |
| int band_offset = 0; | |
| /* Legacy rate format, search for match in table */ | |
| if (band != NL80211_BAND_2GHZ) | |
| band_offset = IWL_FIRST_OFDM_RATE; | |
| for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) | |
| if (fw_rate_idx_to_plcp[idx] == rate) | |
| return idx - band_offset; | |
| return -1; | |
| } | |
| u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) | |
| { | |
| /* Get PLCP rate for tx_cmd->rate_n_flags */ | |
| return fw_rate_idx_to_plcp[rate_idx]; | |
| } | |
| u8 iwl_mvm_mac80211_ac_to_ucode_ac(enum ieee80211_ac_numbers ac) | |
| { | |
| static const u8 mac80211_ac_to_ucode_ac[] = { | |
| AC_VO, | |
| AC_VI, | |
| AC_BE, | |
| AC_BK | |
| }; | |
| return mac80211_ac_to_ucode_ac[ac]; | |
| } | |
| void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) | |
| { | |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
| struct iwl_error_resp *err_resp = (void *)pkt->data; | |
| IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", | |
| le32_to_cpu(err_resp->error_type), err_resp->cmd_id); | |
| IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", | |
| le16_to_cpu(err_resp->bad_cmd_seq_num), | |
| le32_to_cpu(err_resp->error_service)); | |
| IWL_ERR(mvm, "FW Error notification: timestamp 0x%016llX\n", | |
| le64_to_cpu(err_resp->timestamp)); | |
| } | |
| /* | |
| * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. | |
| * The parameter should also be a combination of ANT_[ABC]. | |
| */ | |
| u8 first_antenna(u8 mask) | |
| { | |
| BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ | |
| if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ | |
| return BIT(0); | |
| return BIT(ffs(mask) - 1); | |
| } | |
| /* | |
| * Toggles between TX antennas to send the probe request on. | |
| * Receives the bitmask of valid TX antennas and the *index* used | |
| * for the last TX, and returns the next valid *index* to use. | |
| * In order to set it in the tx_cmd, must do BIT(idx). | |
| */ | |
| u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) | |
| { | |
| u8 ind = last_idx; | |
| int i; | |
| for (i = 0; i < MAX_ANT_NUM; i++) { | |
| ind = (ind + 1) % MAX_ANT_NUM; | |
| if (valid & BIT(ind)) | |
| return ind; | |
| } | |
| WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); | |
| return last_idx; | |
| } | |
| /* | |
| * Note: This structure is read from the device with IO accesses, | |
| * and the reading already does the endian conversion. As it is | |
| * read with u32-sized accesses, any members with a different size | |
| * need to be ordered correctly though! | |
| */ | |
| struct iwl_error_event_table_v1 { | |
| u32 valid; /* (nonzero) valid, (0) log is empty */ | |
| u32 error_id; /* type of error */ | |
| u32 pc; /* program counter */ | |
| u32 blink1; /* branch link */ | |
| u32 blink2; /* branch link */ | |
| u32 ilink1; /* interrupt link */ | |
| u32 ilink2; /* interrupt link */ | |
| u32 data1; /* error-specific data */ | |
| u32 data2; /* error-specific data */ | |
| u32 data3; /* error-specific data */ | |
| u32 bcon_time; /* beacon timer */ | |
| u32 tsf_low; /* network timestamp function timer */ | |
| u32 tsf_hi; /* network timestamp function timer */ | |
| u32 gp1; /* GP1 timer register */ | |
| u32 gp2; /* GP2 timer register */ | |
| u32 gp3; /* GP3 timer register */ | |
| u32 ucode_ver; /* uCode version */ | |
| u32 hw_ver; /* HW Silicon version */ | |
| u32 brd_ver; /* HW board version */ | |
| u32 log_pc; /* log program counter */ | |
| u32 frame_ptr; /* frame pointer */ | |
| u32 stack_ptr; /* stack pointer */ | |
| u32 hcmd; /* last host command header */ | |
| u32 isr0; /* isr status register LMPM_NIC_ISR0: | |
| * rxtx_flag */ | |
| u32 isr1; /* isr status register LMPM_NIC_ISR1: | |
| * host_flag */ | |
| u32 isr2; /* isr status register LMPM_NIC_ISR2: | |
| * enc_flag */ | |
| u32 isr3; /* isr status register LMPM_NIC_ISR3: | |
| * time_flag */ | |
| u32 isr4; /* isr status register LMPM_NIC_ISR4: | |
| * wico interrupt */ | |
| u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ | |
| u32 wait_event; /* wait event() caller address */ | |
| u32 l2p_control; /* L2pControlField */ | |
| u32 l2p_duration; /* L2pDurationField */ | |
| u32 l2p_mhvalid; /* L2pMhValidBits */ | |
| u32 l2p_addr_match; /* L2pAddrMatchStat */ | |
| u32 lmpm_pmg_sel; /* indicate which clocks are turned on | |
| * (LMPM_PMG_SEL) */ | |
| u32 u_timestamp; /* indicate when the date and time of the | |
| * compilation */ | |
| u32 flow_handler; /* FH read/write pointers, RX credit */ | |
| } __packed /* LOG_ERROR_TABLE_API_S_VER_1 */; | |
| struct iwl_error_event_table { | |
| u32 valid; /* (nonzero) valid, (0) log is empty */ | |
| u32 error_id; /* type of error */ | |
| u32 trm_hw_status0; /* TRM HW status */ | |
| u32 trm_hw_status1; /* TRM HW status */ | |
| u32 blink2; /* branch link */ | |
| u32 ilink1; /* interrupt link */ | |
| u32 ilink2; /* interrupt link */ | |
| u32 data1; /* error-specific data */ | |
| u32 data2; /* error-specific data */ | |
| u32 data3; /* error-specific data */ | |
| u32 bcon_time; /* beacon timer */ | |
| u32 tsf_low; /* network timestamp function timer */ | |
| u32 tsf_hi; /* network timestamp function timer */ | |
| u32 gp1; /* GP1 timer register */ | |
| u32 gp2; /* GP2 timer register */ | |
| u32 fw_rev_type; /* firmware revision type */ | |
| u32 major; /* uCode version major */ | |
| u32 minor; /* uCode version minor */ | |
| u32 hw_ver; /* HW Silicon version */ | |
| u32 brd_ver; /* HW board version */ | |
| u32 log_pc; /* log program counter */ | |
| u32 frame_ptr; /* frame pointer */ | |
| u32 stack_ptr; /* stack pointer */ | |
| u32 hcmd; /* last host command header */ | |
| u32 isr0; /* isr status register LMPM_NIC_ISR0: | |
| * rxtx_flag */ | |
| u32 isr1; /* isr status register LMPM_NIC_ISR1: | |
| * host_flag */ | |
| u32 isr2; /* isr status register LMPM_NIC_ISR2: | |
| * enc_flag */ | |
| u32 isr3; /* isr status register LMPM_NIC_ISR3: | |
| * time_flag */ | |
| u32 isr4; /* isr status register LMPM_NIC_ISR4: | |
| * wico interrupt */ | |
| u32 last_cmd_id; /* last HCMD id handled by the firmware */ | |
| u32 wait_event; /* wait event() caller address */ | |
| u32 l2p_control; /* L2pControlField */ | |
| u32 l2p_duration; /* L2pDurationField */ | |
| u32 l2p_mhvalid; /* L2pMhValidBits */ | |
| u32 l2p_addr_match; /* L2pAddrMatchStat */ | |
| u32 lmpm_pmg_sel; /* indicate which clocks are turned on | |
| * (LMPM_PMG_SEL) */ | |
| u32 u_timestamp; /* indicate when the date and time of the | |
| * compilation */ | |
| u32 flow_handler; /* FH read/write pointers, RX credit */ | |
| } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */; | |
| /* | |
| * UMAC error struct - relevant starting from family 8000 chip. | |
| * Note: This structure is read from the device with IO accesses, | |
| * and the reading already does the endian conversion. As it is | |
| * read with u32-sized accesses, any members with a different size | |
| * need to be ordered correctly though! | |
| */ | |
| struct iwl_umac_error_event_table { | |
| u32 valid; /* (nonzero) valid, (0) log is empty */ | |
| u32 error_id; /* type of error */ | |
| u32 blink1; /* branch link */ | |
| u32 blink2; /* branch link */ | |
| u32 ilink1; /* interrupt link */ | |
| u32 ilink2; /* interrupt link */ | |
| u32 data1; /* error-specific data */ | |
| u32 data2; /* error-specific data */ | |
| u32 data3; /* error-specific data */ | |
| u32 umac_major; | |
| u32 umac_minor; | |
| u32 frame_pointer; /* core register 27*/ | |
| u32 stack_pointer; /* core register 28 */ | |
| u32 cmd_header; /* latest host cmd sent to UMAC */ | |
| u32 nic_isr_pref; /* ISR status register */ | |
| } __packed; | |
| #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
| #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
| static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) | |
| { | |
| struct iwl_trans *trans = mvm->trans; | |
| struct iwl_umac_error_event_table table = {}; | |
| u32 base = mvm->trans->dbg.umac_error_event_table; | |
| if (!base && | |
| !(mvm->trans->dbg.error_event_table_tlv_status & | |
| IWL_ERROR_EVENT_TABLE_UMAC)) | |
| return; | |
| iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); | |
| if (table.valid) | |
| mvm->fwrt.dump.umac_err_id = table.error_id; | |
| if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { | |
| IWL_ERR(trans, "Start IWL Error Log Dump:\n"); | |
| IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", | |
| mvm->status, table.valid); | |
| } | |
| IWL_ERR(mvm, "0x%08X | %s\n", table.error_id, | |
| iwl_fw_lookup_assert_desc(table.error_id)); | |
| IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); | |
| IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); | |
| IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); | |
| IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); | |
| IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); | |
| IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); | |
| IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3); | |
| IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major); | |
| IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor); | |
| IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer); | |
| IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer); | |
| IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header); | |
| IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref); | |
| } | |
| static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u8 lmac_num) | |
| { | |
| struct iwl_trans *trans = mvm->trans; | |
| struct iwl_error_event_table table = {}; | |
| u32 val, base = mvm->trans->dbg.lmac_error_event_table[lmac_num]; | |
| if (mvm->fwrt.cur_fw_img == IWL_UCODE_INIT) { | |
| if (!base) | |
| base = mvm->fw->init_errlog_ptr; | |
| } else { | |
| if (!base) | |
| base = mvm->fw->inst_errlog_ptr; | |
| } | |
| if (base < 0x400000) { | |
| IWL_ERR(mvm, | |
| "Not valid error log pointer 0x%08X for %s uCode\n", | |
| base, | |
| (mvm->fwrt.cur_fw_img == IWL_UCODE_INIT) | |
| ? "Init" : "RT"); | |
| return; | |
| } | |
| /* check if there is a HW error */ | |
| val = iwl_trans_read_mem32(trans, base); | |
| if (((val & ~0xf) == 0xa5a5a5a0) || ((val & ~0xf) == 0x5a5a5a50)) { | |
| int err; | |
| IWL_ERR(trans, "HW error, resetting before reading\n"); | |
| /* reset the device */ | |
| iwl_trans_sw_reset(trans); | |
| err = iwl_finish_nic_init(trans, trans->trans_cfg); | |
| if (err) | |
| return; | |
| } | |
| iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); | |
| if (table.valid) | |
| mvm->fwrt.dump.lmac_err_id[lmac_num] = table.error_id; | |
| if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { | |
| IWL_ERR(trans, "Start IWL Error Log Dump:\n"); | |
| IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", | |
| mvm->status, table.valid); | |
| } | |
| /* Do not change this output - scripts rely on it */ | |
| IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); | |
| IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, | |
| iwl_fw_lookup_assert_desc(table.error_id)); | |
| IWL_ERR(mvm, "0x%08X | trm_hw_status0\n", table.trm_hw_status0); | |
| IWL_ERR(mvm, "0x%08X | trm_hw_status1\n", table.trm_hw_status1); | |
| IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); | |
| IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); | |
| IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); | |
| IWL_ERR(mvm, "0x%08X | data1\n", table.data1); | |
| IWL_ERR(mvm, "0x%08X | data2\n", table.data2); | |
| IWL_ERR(mvm, "0x%08X | data3\n", table.data3); | |
| IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); | |
| IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); | |
| IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); | |
| IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); | |
| IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); | |
| IWL_ERR(mvm, "0x%08X | uCode revision type\n", table.fw_rev_type); | |
| IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major); | |
| IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor); | |
| IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); | |
| IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); | |
| IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); | |
| IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); | |
| IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); | |
| IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); | |
| IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); | |
| IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); | |
| IWL_ERR(mvm, "0x%08X | last cmd Id\n", table.last_cmd_id); | |
| IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); | |
| IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); | |
| IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); | |
| IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); | |
| IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); | |
| IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); | |
| IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); | |
| IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); | |
| } | |
| static void iwl_mvm_dump_iml_error_log(struct iwl_mvm *mvm) | |
| { | |
| struct iwl_trans *trans = mvm->trans; | |
| u32 error, data1; | |
| if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { | |
| error = UMAG_SB_CPU_2_STATUS; | |
| data1 = UMAG_SB_CPU_1_STATUS; | |
| } else if (mvm->trans->trans_cfg->device_family >= | |
| IWL_DEVICE_FAMILY_8000) { | |
| error = SB_CPU_2_STATUS; | |
| data1 = SB_CPU_1_STATUS; | |
| } else { | |
| return; | |
| } | |
| error = iwl_read_umac_prph(trans, UMAG_SB_CPU_2_STATUS); | |
| IWL_ERR(trans, "IML/ROM dump:\n"); | |
| if (error & 0xFFFF0000) | |
| IWL_ERR(trans, "0x%04X | IML/ROM SYSASSERT\n", error >> 16); | |
| IWL_ERR(mvm, "0x%08X | IML/ROM error/state\n", error); | |
| IWL_ERR(mvm, "0x%08X | IML/ROM data1\n", | |
| iwl_read_umac_prph(trans, data1)); | |
| if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) | |
| IWL_ERR(mvm, "0x%08X | IML/ROM WFPM_AUTH_KEY_0\n", | |
| iwl_read_umac_prph(trans, SB_MODIFY_CFG_FLAG)); | |
| } | |
| void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) | |
| { | |
| if (!test_bit(STATUS_DEVICE_ENABLED, &mvm->trans->status)) { | |
| IWL_ERR(mvm, | |
| "DEVICE_ENABLED bit is not set. Aborting dump.\n"); | |
| return; | |
| } | |
| iwl_mvm_dump_lmac_error_log(mvm, 0); | |
| if (mvm->trans->dbg.lmac_error_event_table[1]) | |
| iwl_mvm_dump_lmac_error_log(mvm, 1); | |
| iwl_mvm_dump_umac_error_log(mvm); | |
| iwl_mvm_dump_iml_error_log(mvm); | |
| iwl_fw_error_print_fseq_regs(&mvm->fwrt); | |
| } | |
| int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id, | |
| int tid, int frame_limit, u16 ssn) | |
| { | |
| struct iwl_scd_txq_cfg_cmd cmd = { | |
| .scd_queue = queue, | |
| .action = SCD_CFG_ENABLE_QUEUE, | |
| .window = frame_limit, | |
| .sta_id = sta_id, | |
| .ssn = cpu_to_le16(ssn), | |
| .tx_fifo = fifo, | |
| .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || | |
| queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), | |
| .tid = tid, | |
| }; | |
| int ret; | |
| if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) | |
| return -EINVAL; | |
| if (WARN(mvm->queue_info[queue].tid_bitmap == 0, | |
| "Trying to reconfig unallocated queue %d\n", queue)) | |
| return -ENXIO; | |
| IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); | |
| ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); | |
| WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", | |
| queue, fifo, ret); | |
| return ret; | |
| } | |
| /** | |
| * iwl_mvm_send_lq_cmd() - Send link quality command | |
| * @mvm: Driver data. | |
| * @lq: Link quality command to send. | |
| * | |
| * The link quality command is sent as the last step of station creation. | |
| * This is the special case in which init is set and we call a callback in | |
| * this case to clear the state indicating that station creation is in | |
| * progress. | |
| */ | |
| int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq) | |
| { | |
| struct iwl_host_cmd cmd = { | |
| .id = LQ_CMD, | |
| .len = { sizeof(struct iwl_lq_cmd), }, | |
| .flags = CMD_ASYNC, | |
| .data = { lq, }, | |
| }; | |
| if (WARN_ON(lq->sta_id == IWL_MVM_INVALID_STA || | |
| iwl_mvm_has_tlc_offload(mvm))) | |
| return -EINVAL; | |
| return iwl_mvm_send_cmd(mvm, &cmd); | |
| } | |
| /** | |
| * iwl_mvm_update_smps - Get a request to change the SMPS mode | |
| * @mvm: Driver data. | |
| * @vif: Pointer to the ieee80211_vif structure | |
| * @req_type: The part of the driver who call for a change. | |
| * @smps_request: The request to change the SMPS mode. | |
| * | |
| * Get a requst to change the SMPS mode, | |
| * and change it according to all other requests in the driver. | |
| */ | |
| void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
| enum iwl_mvm_smps_type_request req_type, | |
| enum ieee80211_smps_mode smps_request) | |
| { | |
| struct iwl_mvm_vif *mvmvif; | |
| enum ieee80211_smps_mode smps_mode; | |
| int i; | |
| lockdep_assert_held(&mvm->mutex); | |
| /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ | |
| if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) | |
| return; | |
| if (vif->type == NL80211_IFTYPE_AP) | |
| smps_mode = IEEE80211_SMPS_OFF; | |
| else | |
| smps_mode = IEEE80211_SMPS_AUTOMATIC; | |
| mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| mvmvif->smps_requests[req_type] = smps_request; | |
| for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { | |
| if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { | |
| smps_mode = IEEE80211_SMPS_STATIC; | |
| break; | |
| } | |
| if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) | |
| smps_mode = IEEE80211_SMPS_DYNAMIC; | |
| } | |
| ieee80211_request_smps(vif, smps_mode); | |
| } | |
| int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) | |
| { | |
| struct iwl_statistics_cmd scmd = { | |
| .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, | |
| }; | |
| struct iwl_host_cmd cmd = { | |
| .id = STATISTICS_CMD, | |
| .len[0] = sizeof(scmd), | |
| .data[0] = &scmd, | |
| .flags = CMD_WANT_SKB, | |
| }; | |
| int ret; | |
| ret = iwl_mvm_send_cmd(mvm, &cmd); | |
| if (ret) | |
| return ret; | |
| iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); | |
| iwl_free_resp(&cmd); | |
| if (clear) | |
| iwl_mvm_accu_radio_stats(mvm); | |
| return 0; | |
| } | |
| void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) | |
| { | |
| mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; | |
| mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; | |
| mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; | |
| mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; | |
| } | |
| static void iwl_mvm_diversity_iter(void *_data, u8 *mac, | |
| struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| bool *result = _data; | |
| int i; | |
| for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { | |
| if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || | |
| mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) | |
| *result = false; | |
| } | |
| } | |
| bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) | |
| { | |
| bool result = true; | |
| lockdep_assert_held(&mvm->mutex); | |
| if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) | |
| return false; | |
| if (mvm->cfg->rx_with_siso_diversity) | |
| return false; | |
| ieee80211_iterate_active_interfaces_atomic( | |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_diversity_iter, &result); | |
| return result; | |
| } | |
| void iwl_mvm_send_low_latency_cmd(struct iwl_mvm *mvm, | |
| bool low_latency, u16 mac_id) | |
| { | |
| struct iwl_mac_low_latency_cmd cmd = { | |
| .mac_id = cpu_to_le32(mac_id) | |
| }; | |
| if (!fw_has_capa(&mvm->fw->ucode_capa, | |
| IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA)) | |
| return; | |
| if (low_latency) { | |
| /* currently we don't care about the direction */ | |
| cmd.low_latency_rx = 1; | |
| cmd.low_latency_tx = 1; | |
| } | |
| if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(LOW_LATENCY_CMD, | |
| MAC_CONF_GROUP, 0), | |
| 0, sizeof(cmd), &cmd)) | |
| IWL_ERR(mvm, "Failed to send low latency command\n"); | |
| } | |
| int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
| bool low_latency, | |
| enum iwl_mvm_low_latency_cause cause) | |
| { | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| int res; | |
| bool prev; | |
| lockdep_assert_held(&mvm->mutex); | |
| prev = iwl_mvm_vif_low_latency(mvmvif); | |
| iwl_mvm_vif_set_low_latency(mvmvif, low_latency, cause); | |
| low_latency = iwl_mvm_vif_low_latency(mvmvif); | |
| if (low_latency == prev) | |
| return 0; | |
| iwl_mvm_send_low_latency_cmd(mvm, low_latency, mvmvif->id); | |
| res = iwl_mvm_update_quotas(mvm, false, NULL); | |
| if (res) | |
| return res; | |
| iwl_mvm_bt_coex_vif_change(mvm); | |
| return iwl_mvm_power_update_mac(mvm); | |
| } | |
| struct iwl_mvm_low_latency_iter { | |
| bool result; | |
| bool result_per_band[NUM_NL80211_BANDS]; | |
| }; | |
| static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_low_latency_iter *result = _data; | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| enum nl80211_band band; | |
| if (iwl_mvm_vif_low_latency(mvmvif)) { | |
| result->result = true; | |
| if (!mvmvif->phy_ctxt) | |
| return; | |
| band = mvmvif->phy_ctxt->channel->band; | |
| result->result_per_band[band] = true; | |
| } | |
| } | |
| bool iwl_mvm_low_latency(struct iwl_mvm *mvm) | |
| { | |
| struct iwl_mvm_low_latency_iter data = {}; | |
| ieee80211_iterate_active_interfaces_atomic( | |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_ll_iter, &data); | |
| return data.result; | |
| } | |
| bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band) | |
| { | |
| struct iwl_mvm_low_latency_iter data = {}; | |
| ieee80211_iterate_active_interfaces_atomic( | |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_ll_iter, &data); | |
| return data.result_per_band[band]; | |
| } | |
| struct iwl_bss_iter_data { | |
| struct ieee80211_vif *vif; | |
| bool error; | |
| }; | |
| static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, | |
| struct ieee80211_vif *vif) | |
| { | |
| struct iwl_bss_iter_data *data = _data; | |
| if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) | |
| return; | |
| if (data->vif) { | |
| data->error = true; | |
| return; | |
| } | |
| data->vif = vif; | |
| } | |
| struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) | |
| { | |
| struct iwl_bss_iter_data bss_iter_data = {}; | |
| ieee80211_iterate_active_interfaces_atomic( | |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_bss_iface_iterator, &bss_iter_data); | |
| if (bss_iter_data.error) { | |
| IWL_ERR(mvm, "More than one managed interface active!\n"); | |
| return ERR_PTR(-EINVAL); | |
| } | |
| return bss_iter_data.vif; | |
| } | |
| struct iwl_bss_find_iter_data { | |
| struct ieee80211_vif *vif; | |
| u32 macid; | |
| }; | |
| static void iwl_mvm_bss_find_iface_iterator(void *_data, u8 *mac, | |
| struct ieee80211_vif *vif) | |
| { | |
| struct iwl_bss_find_iter_data *data = _data; | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| if (mvmvif->id == data->macid) | |
| data->vif = vif; | |
| } | |
| struct ieee80211_vif *iwl_mvm_get_vif_by_macid(struct iwl_mvm *mvm, u32 macid) | |
| { | |
| struct iwl_bss_find_iter_data data = { | |
| .macid = macid, | |
| }; | |
| lockdep_assert_held(&mvm->mutex); | |
| ieee80211_iterate_active_interfaces_atomic( | |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_bss_find_iface_iterator, &data); | |
| return data.vif; | |
| } | |
| struct iwl_sta_iter_data { | |
| bool assoc; | |
| }; | |
| static void iwl_mvm_sta_iface_iterator(void *_data, u8 *mac, | |
| struct ieee80211_vif *vif) | |
| { | |
| struct iwl_sta_iter_data *data = _data; | |
| if (vif->type != NL80211_IFTYPE_STATION) | |
| return; | |
| if (vif->bss_conf.assoc) | |
| data->assoc = true; | |
| } | |
| bool iwl_mvm_is_vif_assoc(struct iwl_mvm *mvm) | |
| { | |
| struct iwl_sta_iter_data data = { | |
| .assoc = false, | |
| }; | |
| ieee80211_iterate_active_interfaces_atomic(mvm->hw, | |
| IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_sta_iface_iterator, | |
| &data); | |
| return data.assoc; | |
| } | |
| unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, | |
| struct ieee80211_vif *vif, | |
| bool tdls, bool cmd_q) | |
| { | |
| struct iwl_fw_dbg_trigger_tlv *trigger; | |
| struct iwl_fw_dbg_trigger_txq_timer *txq_timer; | |
| unsigned int default_timeout = cmd_q ? | |
| IWL_DEF_WD_TIMEOUT : | |
| mvm->trans->trans_cfg->base_params->wd_timeout; | |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) { | |
| /* | |
| * We can't know when the station is asleep or awake, so we | |
| * must disable the queue hang detection. | |
| */ | |
| if (fw_has_capa(&mvm->fw->ucode_capa, | |
| IWL_UCODE_TLV_CAPA_STA_PM_NOTIF) && | |
| vif && vif->type == NL80211_IFTYPE_AP) | |
| return IWL_WATCHDOG_DISABLED; | |
| return default_timeout; | |
| } | |
| trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); | |
| txq_timer = (void *)trigger->data; | |
| if (tdls) | |
| return le32_to_cpu(txq_timer->tdls); | |
| if (cmd_q) | |
| return le32_to_cpu(txq_timer->command_queue); | |
| if (WARN_ON(!vif)) | |
| return default_timeout; | |
| switch (ieee80211_vif_type_p2p(vif)) { | |
| case NL80211_IFTYPE_ADHOC: | |
| return le32_to_cpu(txq_timer->ibss); | |
| case NL80211_IFTYPE_STATION: | |
| return le32_to_cpu(txq_timer->bss); | |
| case NL80211_IFTYPE_AP: | |
| return le32_to_cpu(txq_timer->softap); | |
| case NL80211_IFTYPE_P2P_CLIENT: | |
| return le32_to_cpu(txq_timer->p2p_client); | |
| case NL80211_IFTYPE_P2P_GO: | |
| return le32_to_cpu(txq_timer->p2p_go); | |
| case NL80211_IFTYPE_P2P_DEVICE: | |
| return le32_to_cpu(txq_timer->p2p_device); | |
| case NL80211_IFTYPE_MONITOR: | |
| return default_timeout; | |
| default: | |
| WARN_ON(1); | |
| return mvm->trans->trans_cfg->base_params->wd_timeout; | |
| } | |
| } | |
| void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
| const char *errmsg) | |
| { | |
| struct iwl_fw_dbg_trigger_tlv *trig; | |
| struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
| trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), | |
| FW_DBG_TRIGGER_MLME); | |
| if (!trig) | |
| goto out; | |
| trig_mlme = (void *)trig->data; | |
| if (trig_mlme->stop_connection_loss && | |
| --trig_mlme->stop_connection_loss) | |
| goto out; | |
| iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, "%s", errmsg); | |
| out: | |
| ieee80211_connection_loss(vif); | |
| } | |
| void iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, | |
| struct ieee80211_vif *vif, | |
| const struct ieee80211_sta *sta, | |
| u16 tid) | |
| { | |
| struct iwl_fw_dbg_trigger_tlv *trig; | |
| struct iwl_fw_dbg_trigger_ba *ba_trig; | |
| trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), | |
| FW_DBG_TRIGGER_BA); | |
| if (!trig) | |
| return; | |
| ba_trig = (void *)trig->data; | |
| if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(tid))) | |
| return; | |
| iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, | |
| "Frame from %pM timed out, tid %d", | |
| sta->addr, tid); | |
| } | |
| u8 iwl_mvm_tcm_load_percentage(u32 airtime, u32 elapsed) | |
| { | |
| if (!elapsed) | |
| return 0; | |
| return (100 * airtime / elapsed) / USEC_PER_MSEC; | |
| } | |
| static enum iwl_mvm_traffic_load | |
| iwl_mvm_tcm_load(struct iwl_mvm *mvm, u32 airtime, unsigned long elapsed) | |
| { | |
| u8 load = iwl_mvm_tcm_load_percentage(airtime, elapsed); | |
| if (load > IWL_MVM_TCM_LOAD_HIGH_THRESH) | |
| return IWL_MVM_TRAFFIC_HIGH; | |
| if (load > IWL_MVM_TCM_LOAD_MEDIUM_THRESH) | |
| return IWL_MVM_TRAFFIC_MEDIUM; | |
| return IWL_MVM_TRAFFIC_LOW; | |
| } | |
| struct iwl_mvm_tcm_iter_data { | |
| struct iwl_mvm *mvm; | |
| bool any_sent; | |
| }; | |
| static void iwl_mvm_tcm_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_tcm_iter_data *data = _data; | |
| struct iwl_mvm *mvm = data->mvm; | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| bool low_latency, prev = mvmvif->low_latency & LOW_LATENCY_TRAFFIC; | |
| if (mvmvif->id >= NUM_MAC_INDEX_DRIVER) | |
| return; | |
| low_latency = mvm->tcm.result.low_latency[mvmvif->id]; | |
| if (!mvm->tcm.result.change[mvmvif->id] && | |
| prev == low_latency) { | |
| iwl_mvm_update_quotas(mvm, false, NULL); | |
| return; | |
| } | |
| if (prev != low_latency) { | |
| /* this sends traffic load and updates quota as well */ | |
| iwl_mvm_update_low_latency(mvm, vif, low_latency, | |
| LOW_LATENCY_TRAFFIC); | |
| } else { | |
| iwl_mvm_update_quotas(mvm, false, NULL); | |
| } | |
| data->any_sent = true; | |
| } | |
| static void iwl_mvm_tcm_results(struct iwl_mvm *mvm) | |
| { | |
| struct iwl_mvm_tcm_iter_data data = { | |
| .mvm = mvm, | |
| .any_sent = false, | |
| }; | |
| mutex_lock(&mvm->mutex); | |
| ieee80211_iterate_active_interfaces( | |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_tcm_iter, &data); | |
| if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) | |
| iwl_mvm_config_scan(mvm); | |
| mutex_unlock(&mvm->mutex); | |
| } | |
| static void iwl_mvm_tcm_uapsd_nonagg_detected_wk(struct work_struct *wk) | |
| { | |
| struct iwl_mvm *mvm; | |
| struct iwl_mvm_vif *mvmvif; | |
| struct ieee80211_vif *vif; | |
| mvmvif = container_of(wk, struct iwl_mvm_vif, | |
| uapsd_nonagg_detected_wk.work); | |
| vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); | |
| mvm = mvmvif->mvm; | |
| if (mvm->tcm.data[mvmvif->id].opened_rx_ba_sessions) | |
| return; | |
| /* remember that this AP is broken */ | |
| memcpy(mvm->uapsd_noagg_bssids[mvm->uapsd_noagg_bssid_write_idx].addr, | |
| vif->bss_conf.bssid, ETH_ALEN); | |
| mvm->uapsd_noagg_bssid_write_idx++; | |
| if (mvm->uapsd_noagg_bssid_write_idx >= IWL_MVM_UAPSD_NOAGG_LIST_LEN) | |
| mvm->uapsd_noagg_bssid_write_idx = 0; | |
| iwl_mvm_connection_loss(mvm, vif, | |
| "AP isn't using AMPDU with uAPSD enabled"); | |
| } | |
| static void iwl_mvm_uapsd_agg_disconnect(struct iwl_mvm *mvm, | |
| struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| if (vif->type != NL80211_IFTYPE_STATION) | |
| return; | |
| if (!vif->bss_conf.assoc) | |
| return; | |
| if (!mvmvif->queue_params[IEEE80211_AC_VO].uapsd && | |
| !mvmvif->queue_params[IEEE80211_AC_VI].uapsd && | |
| !mvmvif->queue_params[IEEE80211_AC_BE].uapsd && | |
| !mvmvif->queue_params[IEEE80211_AC_BK].uapsd) | |
| return; | |
| if (mvm->tcm.data[mvmvif->id].uapsd_nonagg_detect.detected) | |
| return; | |
| mvm->tcm.data[mvmvif->id].uapsd_nonagg_detect.detected = true; | |
| IWL_INFO(mvm, | |
| "detected AP should do aggregation but isn't, likely due to U-APSD\n"); | |
| schedule_delayed_work(&mvmvif->uapsd_nonagg_detected_wk, 15 * HZ); | |
| } | |
| static void iwl_mvm_check_uapsd_agg_expected_tpt(struct iwl_mvm *mvm, | |
| unsigned int elapsed, | |
| int mac) | |
| { | |
| u64 bytes = mvm->tcm.data[mac].uapsd_nonagg_detect.rx_bytes; | |
| u64 tpt; | |
| unsigned long rate; | |
| struct ieee80211_vif *vif; | |
| rate = ewma_rate_read(&mvm->tcm.data[mac].uapsd_nonagg_detect.rate); | |
| if (!rate || mvm->tcm.data[mac].opened_rx_ba_sessions || | |
| mvm->tcm.data[mac].uapsd_nonagg_detect.detected) | |
| return; | |
| if (iwl_mvm_has_new_rx_api(mvm)) { | |
| tpt = 8 * bytes; /* kbps */ | |
| do_div(tpt, elapsed); | |
| rate *= 1000; /* kbps */ | |
| if (tpt < 22 * rate / 100) | |
| return; | |
| } else { | |
| /* | |
| * the rate here is actually the threshold, in 100Kbps units, | |
| * so do the needed conversion from bytes to 100Kbps: | |
| * 100kb = bits / (100 * 1000), | |
| * 100kbps = 100kb / (msecs / 1000) == | |
| * (bits / (100 * 1000)) / (msecs / 1000) == | |
| * bits / (100 * msecs) | |
| */ | |
| tpt = (8 * bytes); | |
| do_div(tpt, elapsed * 100); | |
| if (tpt < rate) | |
| return; | |
| } | |
| rcu_read_lock(); | |
| vif = rcu_dereference(mvm->vif_id_to_mac[mac]); | |
| if (vif) | |
| iwl_mvm_uapsd_agg_disconnect(mvm, vif); | |
| rcu_read_unlock(); | |
| } | |
| static void iwl_mvm_tcm_iterator(void *_data, u8 *mac, | |
| struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| u32 *band = _data; | |
| if (!mvmvif->phy_ctxt) | |
| return; | |
| band[mvmvif->id] = mvmvif->phy_ctxt->channel->band; | |
| } | |
| static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm, | |
| unsigned long ts, | |
| bool handle_uapsd) | |
| { | |
| unsigned int elapsed = jiffies_to_msecs(ts - mvm->tcm.ts); | |
| unsigned int uapsd_elapsed = | |
| jiffies_to_msecs(ts - mvm->tcm.uapsd_nonagg_ts); | |
| u32 total_airtime = 0; | |
| u32 band_airtime[NUM_NL80211_BANDS] = {0}; | |
| u32 band[NUM_MAC_INDEX_DRIVER] = {0}; | |
| int ac, mac, i; | |
| bool low_latency = false; | |
| enum iwl_mvm_traffic_load load, band_load; | |
| bool handle_ll = time_after(ts, mvm->tcm.ll_ts + MVM_LL_PERIOD); | |
| if (handle_ll) | |
| mvm->tcm.ll_ts = ts; | |
| if (handle_uapsd) | |
| mvm->tcm.uapsd_nonagg_ts = ts; | |
| mvm->tcm.result.elapsed = elapsed; | |
| ieee80211_iterate_active_interfaces_atomic(mvm->hw, | |
| IEEE80211_IFACE_ITER_NORMAL, | |
| iwl_mvm_tcm_iterator, | |
| &band); | |
| for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) { | |
| struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac]; | |
| u32 vo_vi_pkts = 0; | |
| u32 airtime = mdata->rx.airtime + mdata->tx.airtime; | |
| total_airtime += airtime; | |
| band_airtime[band[mac]] += airtime; | |
| load = iwl_mvm_tcm_load(mvm, airtime, elapsed); | |
| mvm->tcm.result.change[mac] = load != mvm->tcm.result.load[mac]; | |
| mvm->tcm.result.load[mac] = load; | |
| mvm->tcm.result.airtime[mac] = airtime; | |
| for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) | |
| vo_vi_pkts += mdata->rx.pkts[ac] + | |
| mdata->tx.pkts[ac]; | |
| /* enable immediately with enough packets but defer disabling */ | |
| if (vo_vi_pkts > IWL_MVM_TCM_LOWLAT_ENABLE_THRESH) | |
| mvm->tcm.result.low_latency[mac] = true; | |
| else if (handle_ll) | |
| mvm->tcm.result.low_latency[mac] = false; | |
| if (handle_ll) { | |
| /* clear old data */ | |
| memset(&mdata->rx.pkts, 0, sizeof(mdata->rx.pkts)); | |
| memset(&mdata->tx.pkts, 0, sizeof(mdata->tx.pkts)); | |
| } | |
| low_latency |= mvm->tcm.result.low_latency[mac]; | |
| if (!mvm->tcm.result.low_latency[mac] && handle_uapsd) | |
| iwl_mvm_check_uapsd_agg_expected_tpt(mvm, uapsd_elapsed, | |
| mac); | |
| /* clear old data */ | |
| if (handle_uapsd) | |
| mdata->uapsd_nonagg_detect.rx_bytes = 0; | |
| memset(&mdata->rx.airtime, 0, sizeof(mdata->rx.airtime)); | |
| memset(&mdata->tx.airtime, 0, sizeof(mdata->tx.airtime)); | |
| } | |
| load = iwl_mvm_tcm_load(mvm, total_airtime, elapsed); | |
| mvm->tcm.result.global_change = load != mvm->tcm.result.global_load; | |
| mvm->tcm.result.global_load = load; | |
| for (i = 0; i < NUM_NL80211_BANDS; i++) { | |
| band_load = iwl_mvm_tcm_load(mvm, band_airtime[i], elapsed); | |
| mvm->tcm.result.band_load[i] = band_load; | |
| } | |
| /* | |
| * If the current load isn't low we need to force re-evaluation | |
| * in the TCM period, so that we can return to low load if there | |
| * was no traffic at all (and thus iwl_mvm_recalc_tcm didn't get | |
| * triggered by traffic). | |
| */ | |
| if (load != IWL_MVM_TRAFFIC_LOW) | |
| return MVM_TCM_PERIOD; | |
| /* | |
| * If low-latency is active we need to force re-evaluation after | |
| * (the longer) MVM_LL_PERIOD, so that we can disable low-latency | |
| * when there's no traffic at all. | |
| */ | |
| if (low_latency) | |
| return MVM_LL_PERIOD; | |
| /* | |
| * Otherwise, we don't need to run the work struct because we're | |
| * in the default "idle" state - traffic indication is low (which | |
| * also covers the "no traffic" case) and low-latency is disabled | |
| * so there's no state that may need to be disabled when there's | |
| * no traffic at all. | |
| * | |
| * Note that this has no impact on the regular scheduling of the | |
| * updates triggered by traffic - those happen whenever one of the | |
| * two timeouts expire (if there's traffic at all.) | |
| */ | |
| return 0; | |
| } | |
| void iwl_mvm_recalc_tcm(struct iwl_mvm *mvm) | |
| { | |
| unsigned long ts = jiffies; | |
| bool handle_uapsd = | |
| time_after(ts, mvm->tcm.uapsd_nonagg_ts + | |
| msecs_to_jiffies(IWL_MVM_UAPSD_NONAGG_PERIOD)); | |
| spin_lock(&mvm->tcm.lock); | |
| if (mvm->tcm.paused || !time_after(ts, mvm->tcm.ts + MVM_TCM_PERIOD)) { | |
| spin_unlock(&mvm->tcm.lock); | |
| return; | |
| } | |
| spin_unlock(&mvm->tcm.lock); | |
| if (handle_uapsd && iwl_mvm_has_new_rx_api(mvm)) { | |
| mutex_lock(&mvm->mutex); | |
| if (iwl_mvm_request_statistics(mvm, true)) | |
| handle_uapsd = false; | |
| mutex_unlock(&mvm->mutex); | |
| } | |
| spin_lock(&mvm->tcm.lock); | |
| /* re-check if somebody else won the recheck race */ | |
| if (!mvm->tcm.paused && time_after(ts, mvm->tcm.ts + MVM_TCM_PERIOD)) { | |
| /* calculate statistics */ | |
| unsigned long work_delay = iwl_mvm_calc_tcm_stats(mvm, ts, | |
| handle_uapsd); | |
| /* the memset needs to be visible before the timestamp */ | |
| smp_mb(); | |
| mvm->tcm.ts = ts; | |
| if (work_delay) | |
| schedule_delayed_work(&mvm->tcm.work, work_delay); | |
| } | |
| spin_unlock(&mvm->tcm.lock); | |
| iwl_mvm_tcm_results(mvm); | |
| } | |
| void iwl_mvm_tcm_work(struct work_struct *work) | |
| { | |
| struct delayed_work *delayed_work = to_delayed_work(work); | |
| struct iwl_mvm *mvm = container_of(delayed_work, struct iwl_mvm, | |
| tcm.work); | |
| iwl_mvm_recalc_tcm(mvm); | |
| } | |
| void iwl_mvm_pause_tcm(struct iwl_mvm *mvm, bool with_cancel) | |
| { | |
| spin_lock_bh(&mvm->tcm.lock); | |
| mvm->tcm.paused = true; | |
| spin_unlock_bh(&mvm->tcm.lock); | |
| if (with_cancel) | |
| cancel_delayed_work_sync(&mvm->tcm.work); | |
| } | |
| void iwl_mvm_resume_tcm(struct iwl_mvm *mvm) | |
| { | |
| int mac; | |
| bool low_latency = false; | |
| spin_lock_bh(&mvm->tcm.lock); | |
| mvm->tcm.ts = jiffies; | |
| mvm->tcm.ll_ts = jiffies; | |
| for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) { | |
| struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac]; | |
| memset(&mdata->rx.pkts, 0, sizeof(mdata->rx.pkts)); | |
| memset(&mdata->tx.pkts, 0, sizeof(mdata->tx.pkts)); | |
| memset(&mdata->rx.airtime, 0, sizeof(mdata->rx.airtime)); | |
| memset(&mdata->tx.airtime, 0, sizeof(mdata->tx.airtime)); | |
| if (mvm->tcm.result.low_latency[mac]) | |
| low_latency = true; | |
| } | |
| /* The TCM data needs to be reset before "paused" flag changes */ | |
| smp_mb(); | |
| mvm->tcm.paused = false; | |
| /* | |
| * if the current load is not low or low latency is active, force | |
| * re-evaluation to cover the case of no traffic. | |
| */ | |
| if (mvm->tcm.result.global_load > IWL_MVM_TRAFFIC_LOW) | |
| schedule_delayed_work(&mvm->tcm.work, MVM_TCM_PERIOD); | |
| else if (low_latency) | |
| schedule_delayed_work(&mvm->tcm.work, MVM_LL_PERIOD); | |
| spin_unlock_bh(&mvm->tcm.lock); | |
| } | |
| void iwl_mvm_tcm_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| INIT_DELAYED_WORK(&mvmvif->uapsd_nonagg_detected_wk, | |
| iwl_mvm_tcm_uapsd_nonagg_detected_wk); | |
| } | |
| void iwl_mvm_tcm_rm_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
| { | |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
| cancel_delayed_work_sync(&mvmvif->uapsd_nonagg_detected_wk); | |
| } | |
| u32 iwl_mvm_get_systime(struct iwl_mvm *mvm) | |
| { | |
| u32 reg_addr = DEVICE_SYSTEM_TIME_REG; | |
| if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000 && | |
| mvm->trans->cfg->gp2_reg_addr) | |
| reg_addr = mvm->trans->cfg->gp2_reg_addr; | |
| return iwl_read_prph(mvm->trans, reg_addr); | |
| } | |
| void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) | |
| { | |
| bool ps_disabled; | |
| lockdep_assert_held(&mvm->mutex); | |
| /* Disable power save when reading GP2 */ | |
| ps_disabled = mvm->ps_disabled; | |
| if (!ps_disabled) { | |
| mvm->ps_disabled = true; | |
| iwl_mvm_power_update_device(mvm); | |
| } | |
| *gp2 = iwl_mvm_get_systime(mvm); | |
| *boottime = ktime_get_boottime_ns(); | |
| if (!ps_disabled) { | |
| mvm->ps_disabled = ps_disabled; | |
| iwl_mvm_power_update_device(mvm); | |
| } | |
| } |