예제 #1
0
static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
{
	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
	u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
	u32 reg_val = 0;

	radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >>
			  FW_PHY_CFG_RADIO_TYPE_POS;
	radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >>
			  FW_PHY_CFG_RADIO_STEP_POS;
	radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >>
			  FW_PHY_CFG_RADIO_DASH_POS;

	/* SKU control */
	reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
				CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
	reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
				CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;

	/* radio configuration */
	reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
	reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
	reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;

	WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
		 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);

	/*
	 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
	 * shouldn't be set to any non-zero value. The same is supposed to be
	 * true of the other HW, but unsetting them (such as the 7260) causes
	 * automatic tests to fail on seemingly unrelated errors. Need to
	 * further investigate this, but for now we'll separate cases.
	 */
	if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
		reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;

	iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
				CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
				CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
				CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
				CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
				reg_val);

	IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
		       radio_cfg_step, radio_cfg_dash);

	/*
	 * W/A : NIC is stuck in a reset state after Early PCIe power off
	 * (PCIe power is lost before PERST# is asserted), causing ME FW
	 * to lose ownership and not being able to obtain it back.
	 */
	if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
		iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
				       APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
				       ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
}
예제 #2
0
파일: ops.c 프로젝트: spacex/kernel-centos7
static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
{
	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
	u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
	u32 reg_val = 0;

	radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >>
			  FW_PHY_CFG_RADIO_TYPE_POS;
	radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >>
			  FW_PHY_CFG_RADIO_STEP_POS;
	radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >>
			  FW_PHY_CFG_RADIO_DASH_POS;

	/* SKU control */
	reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
				CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
	reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
				CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;

	/* radio configuration */
	reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
	reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
	reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;

	WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
		 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);

	/* silicon bits */
	reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;

	iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
				CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
				CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
				CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
				CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
				reg_val);

	IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
		       radio_cfg_step, radio_cfg_dash);

	/*
	 * W/A : NIC is stuck in a reset state after Early PCIe power off
	 * (PCIe power is lost before PERST# is asserted), causing ME FW
	 * to lose ownership and not being able to obtain it back.
	 */
	if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
		iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
				       APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
				       ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
}
예제 #3
0
static int iwl_tm_gnl_get_sil_step(struct iwl_trans *trans,
				   struct iwl_tm_data *data_out)
{
	struct iwl_sil_step *resp;
	data_out->data =  kmalloc(sizeof(struct iwl_sil_step), GFP_KERNEL);
	if (!data_out->data)
		return -ENOMEM;
	data_out->len = sizeof(struct iwl_sil_step);
	resp = (struct iwl_sil_step *)data_out->data;
	resp->silicon_step = CSR_HW_REV_STEP(trans->hw_rev);
	return 0;
}
예제 #4
0
파일: ops.c 프로젝트: AddictXQ/linux
static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
		      const struct iwl_fw *fw, struct dentry *dbgfs_dir)
{
	struct ieee80211_hw *hw;
	struct iwl_op_mode *op_mode;
	struct iwl_mvm *mvm;
	struct iwl_trans_config trans_cfg = {};
	static const u8 no_reclaim_cmds[] = {
		TX_CMD,
	};
	int err, scan_size;
	u32 min_backoff;

	/*
	 * We use IWL_MVM_STATION_COUNT to check the validity of the station
	 * index all over the driver - check that its value corresponds to the
	 * array size.
	 */
	BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);

	/********************************
	 * 1. Allocating and configuring HW data
	 ********************************/
	hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
				sizeof(struct iwl_mvm),
				&iwl_mvm_hw_ops);
	if (!hw)
		return NULL;

	if (cfg->max_rx_agg_size)
		hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;

	if (cfg->max_tx_agg_size)
		hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;

	op_mode = hw->priv;
	op_mode->ops = &iwl_mvm_ops;

	mvm = IWL_OP_MODE_GET_MVM(op_mode);
	mvm->dev = trans->dev;
	mvm->trans = trans;
	mvm->cfg = cfg;
	mvm->fw = fw;
	mvm->hw = hw;

	mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;

	mvm->aux_queue = 15;
	mvm->first_agg_queue = 16;
	mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
	if (mvm->cfg->base_params->num_of_queues == 16) {
		mvm->aux_queue = 11;
		mvm->first_agg_queue = 12;
	}
	mvm->sf_state = SF_UNINIT;
	mvm->low_latency_agg_frame_limit = 6;
	mvm->cur_ucode = IWL_UCODE_INIT;

	mutex_init(&mvm->mutex);
	mutex_init(&mvm->d0i3_suspend_mutex);
	spin_lock_init(&mvm->async_handlers_lock);
	INIT_LIST_HEAD(&mvm->time_event_list);
	INIT_LIST_HEAD(&mvm->aux_roc_te_list);
	INIT_LIST_HEAD(&mvm->async_handlers_list);
	spin_lock_init(&mvm->time_event_lock);

	INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
	INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
	INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
	INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
	INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
	INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);

	spin_lock_init(&mvm->d0i3_tx_lock);
	spin_lock_init(&mvm->refs_lock);
	skb_queue_head_init(&mvm->d0i3_tx);
	init_waitqueue_head(&mvm->d0i3_exit_waitq);

	SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);

	/*
	 * Populate the state variables that the transport layer needs
	 * to know about.
	 */
	trans_cfg.op_mode = op_mode;
	trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
	trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
	trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;

	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
		trans_cfg.bc_table_dword = true;

	trans_cfg.command_names = iwl_mvm_cmd_strings;

	trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
	trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
	trans_cfg.scd_set_active = true;

	trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;

	/* Set a short watchdog for the command queue */
	trans_cfg.cmd_q_wdg_timeout =
		iwl_mvm_get_wd_timeout(mvm, NULL, false, true);

	snprintf(mvm->hw->wiphy->fw_version,
		 sizeof(mvm->hw->wiphy->fw_version),
		 "%s", fw->fw_version);

	/* Configure transport layer */
	iwl_trans_configure(mvm->trans, &trans_cfg);

	trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
	trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
	trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
	trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
	memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
	       sizeof(trans->dbg_conf_tlv));
	trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;

	/* set up notification wait support */
	iwl_notification_wait_init(&mvm->notif_wait);

	/* Init phy db */
	mvm->phy_db = iwl_phy_db_init(trans);
	if (!mvm->phy_db) {
		IWL_ERR(mvm, "Cannot init phy_db\n");
		goto out_free;
	}

	IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
		 mvm->cfg->name, mvm->trans->hw_rev);

	min_backoff = calc_min_backoff(trans, cfg);
	iwl_mvm_tt_initialize(mvm, min_backoff);
	/* set the nvm_file_name according to priority */
	if (iwlwifi_mod_params.nvm_file) {
		mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
	} else if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
		if (CSR_HW_REV_STEP(trans->hw_rev) == SILICON_B_STEP)
			mvm->nvm_file_name = mvm->cfg->default_nvm_file_B_step;
		else
			mvm->nvm_file_name = mvm->cfg->default_nvm_file_C_step;
	}

	if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
		 "not allowing power-up and not having nvm_file\n"))
		goto out_free;

	/*
	 * Even if nvm exists in the nvm_file driver should read again the nvm
	 * from the nic because there might be entries that exist in the OTP
	 * and not in the file.
	 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
	 */
	if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
		err = iwl_nvm_init(mvm, false);
		if (err)
			goto out_free;
	} else {
		err = iwl_trans_start_hw(mvm->trans);
		if (err)
			goto out_free;

		mutex_lock(&mvm->mutex);
		err = iwl_run_init_mvm_ucode(mvm, true);
		if (!err || !iwlmvm_mod_params.init_dbg)
			iwl_trans_stop_device(trans);
		mutex_unlock(&mvm->mutex);
		/* returns 0 if successful, 1 if success but in rfkill */
		if (err < 0 && !iwlmvm_mod_params.init_dbg) {
			IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
			goto out_free;
		}
	}

	scan_size = iwl_mvm_scan_size(mvm);

	mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
	if (!mvm->scan_cmd)
		goto out_free;

	/* Set EBS as successful as long as not stated otherwise by the FW. */
	mvm->last_ebs_successful = true;

	err = iwl_mvm_mac_setup_register(mvm);
	if (err)
		goto out_free;

	err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
	if (err)
		goto out_unregister;

	memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));

	/* rpm starts with a taken ref. only set the appropriate bit here. */
	mvm->refs[IWL_MVM_REF_UCODE_DOWN] = 1;

	return op_mode;

 out_unregister:
	ieee80211_unregister_hw(mvm->hw);
	iwl_mvm_leds_exit(mvm);
 out_free:
	iwl_phy_db_free(mvm->phy_db);
	kfree(mvm->scan_cmd);
	if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
		iwl_trans_op_mode_leave(trans);
	ieee80211_free_hw(mvm->hw);
	return NULL;
}
예제 #5
0
void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
{
	struct iwl_fw_error_dump_file *dump_file;
	struct iwl_fw_error_dump_data *dump_data;
	struct iwl_fw_error_dump_info *dump_info;
	struct iwl_fw_error_dump_mem *dump_mem;
	struct iwl_fw_error_dump_trigger_desc *dump_trig;
	struct iwl_mvm_dump_ptrs *fw_error_dump;
	u32 sram_len, sram_ofs;
	struct iwl_fw_dbg_mem_seg_tlv * const *fw_dbg_mem =
		mvm->fw->dbg_mem_tlv;
	u32 file_len, fifo_data_len = 0, prph_len = 0, radio_len = 0;
	u32 smem_len = mvm->fw->dbg_dynamic_mem ? 0 : mvm->cfg->smem_len;
	u32 sram2_len = mvm->fw->dbg_dynamic_mem ? 0 : mvm->cfg->dccm2_len;
	bool monitor_dump_only = false;
	int i;

	if (!IWL_MVM_COLLECT_FW_ERR_DUMP &&
	    !mvm->trans->dbg_dest_tlv)
		return;

	lockdep_assert_held(&mvm->mutex);

	/* there's no point in fw dump if the bus is dead */
	if (test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
		IWL_ERR(mvm, "Skip fw error dump since bus is dead\n");
		goto out;
	}

	if (mvm->fw_dump_trig &&
	    mvm->fw_dump_trig->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY)
		monitor_dump_only = true;

	fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
	if (!fw_error_dump)
		goto out;

	/* SRAM - include stack CCM if driver knows the values for it */
	if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
		const struct fw_img *img;

		img = &mvm->fw->img[mvm->cur_ucode];
		sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
		sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
	} else {
		sram_ofs = mvm->cfg->dccm_offset;
		sram_len = mvm->cfg->dccm_len;
	}

	/* reading RXF/TXF sizes */
	if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
		struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;

		fifo_data_len = 0;

		/* Count RXF size */
		for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
			if (!mem_cfg->rxfifo_size[i])
				continue;

			/* Add header info */
			fifo_data_len += mem_cfg->rxfifo_size[i] +
					 sizeof(*dump_data) +
					 sizeof(struct iwl_fw_error_dump_fifo);
		}

		for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
			if (!mem_cfg->txfifo_size[i])
				continue;

			/* Add header info */
			fifo_data_len += mem_cfg->txfifo_size[i] +
					 sizeof(*dump_data) +
					 sizeof(struct iwl_fw_error_dump_fifo);
		}

		if (fw_has_capa(&mvm->fw->ucode_capa,
				IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
			for (i = 0;
			     i < ARRAY_SIZE(mem_cfg->internal_txfifo_size);
			     i++) {
				if (!mem_cfg->internal_txfifo_size[i])
					continue;

				/* Add header info */
				fifo_data_len +=
					mem_cfg->internal_txfifo_size[i] +
					sizeof(*dump_data) +
					sizeof(struct iwl_fw_error_dump_fifo);
			}
		}

		/* Make room for PRPH registers */
		for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr); i++) {
			/* The range includes both boundaries */
			int num_bytes_in_chunk = iwl_prph_dump_addr[i].end -
				iwl_prph_dump_addr[i].start + 4;

			prph_len += sizeof(*dump_data) +
				sizeof(struct iwl_fw_error_dump_prph) +
				num_bytes_in_chunk;
		}

		if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000)
			radio_len = sizeof(*dump_data) + RADIO_REG_MAX_READ;
	}

	file_len = sizeof(*dump_file) +
		   sizeof(*dump_data) * 2 +
		   fifo_data_len +
		   prph_len +
		   radio_len +
		   sizeof(*dump_info);

	/* Make room for the SMEM, if it exists */
	if (smem_len)
		file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;

	/* Make room for the secondary SRAM, if it exists */
	if (sram2_len)
		file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;

	/* Make room for MEM segments */
	for (i = 0; i < ARRAY_SIZE(mvm->fw->dbg_mem_tlv); i++) {
		if (fw_dbg_mem[i])
			file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
				le32_to_cpu(fw_dbg_mem[i]->len);
	}

	/* Make room for fw's virtual image pages, if it exists */
	if (mvm->fw->img[mvm->cur_ucode].paging_mem_size &&
	    mvm->fw_paging_db[0].fw_paging_block)
		file_len += mvm->num_of_paging_blk *
			(sizeof(*dump_data) +
			 sizeof(struct iwl_fw_error_dump_paging) +
			 PAGING_BLOCK_SIZE);

	/* If we only want a monitor dump, reset the file length */
	if (monitor_dump_only) {
		file_len = sizeof(*dump_file) + sizeof(*dump_data) +
			   sizeof(*dump_info);
	}

	/*
	 * In 8000 HW family B-step include the ICCM (which resides separately)
	 */
	if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
	    CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
		file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
			    IWL8260_ICCM_LEN;

	if (mvm->fw_dump_desc)
		file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
			    mvm->fw_dump_desc->len;

	if (!mvm->fw->dbg_dynamic_mem)
		file_len += sram_len + sizeof(*dump_mem);

	dump_file = vzalloc(file_len);
	if (!dump_file) {
		kfree(fw_error_dump);
		goto out;
	}

	fw_error_dump->op_mode_ptr = dump_file;

	dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
	dump_data = (void *)dump_file->data;

	dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
	dump_data->len = cpu_to_le32(sizeof(*dump_info));
	dump_info = (void *)dump_data->data;
	dump_info->device_family =
		mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
			cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
			cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
	dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
	memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
	       sizeof(dump_info->fw_human_readable));
	strncpy(dump_info->dev_human_readable, mvm->cfg->name,
		sizeof(dump_info->dev_human_readable));
	strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
		sizeof(dump_info->bus_human_readable));

	dump_data = iwl_fw_error_next_data(dump_data);
	/* We only dump the FIFOs if the FW is in error state */
	if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
		iwl_mvm_dump_fifos(mvm, &dump_data);
		if (radio_len)
			iwl_mvm_read_radio_reg(mvm, &dump_data);
	}

	if (mvm->fw_dump_desc) {
		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
		dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
					     mvm->fw_dump_desc->len);
		dump_trig = (void *)dump_data->data;
		memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
		       sizeof(*dump_trig) + mvm->fw_dump_desc->len);

		dump_data = iwl_fw_error_next_data(dump_data);
	}

	/* In case we only want monitor dump, skip to dump trasport data */
	if (monitor_dump_only)
		goto dump_trans_data;

	if (!mvm->fw->dbg_dynamic_mem) {
		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
		dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
		dump_mem = (void *)dump_data->data;
		dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
		dump_mem->offset = cpu_to_le32(sram_ofs);
		iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
					 sram_len);
		dump_data = iwl_fw_error_next_data(dump_data);
	}

	for (i = 0; i < ARRAY_SIZE(mvm->fw->dbg_mem_tlv); i++) {
		if (fw_dbg_mem[i]) {
			u32 len = le32_to_cpu(fw_dbg_mem[i]->len);
			u32 ofs = le32_to_cpu(fw_dbg_mem[i]->ofs);

			dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
			dump_data->len = cpu_to_le32(len +
					sizeof(*dump_mem));
			dump_mem = (void *)dump_data->data;
			dump_mem->type = fw_dbg_mem[i]->data_type;
			dump_mem->offset = cpu_to_le32(ofs);
			iwl_trans_read_mem_bytes(mvm->trans, ofs,
						 dump_mem->data,
						 len);
			dump_data = iwl_fw_error_next_data(dump_data);
		}
	}

	if (smem_len) {
		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
		dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
		dump_mem = (void *)dump_data->data;
		dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
		dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
		iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
					 dump_mem->data, smem_len);
		dump_data = iwl_fw_error_next_data(dump_data);
	}

	if (sram2_len) {
		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
		dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
		dump_mem = (void *)dump_data->data;
		dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
		dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
		iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
					 dump_mem->data, sram2_len);
		dump_data = iwl_fw_error_next_data(dump_data);
	}

	if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
	    CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
		dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
					     sizeof(*dump_mem));
		dump_mem = (void *)dump_data->data;
		dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
		dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
		iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
					 dump_mem->data, IWL8260_ICCM_LEN);
		dump_data = iwl_fw_error_next_data(dump_data);
	}

	/* Dump fw's virtual image */
	if (mvm->fw->img[mvm->cur_ucode].paging_mem_size &&
	    mvm->fw_paging_db[0].fw_paging_block) {
		for (i = 1; i < mvm->num_of_paging_blk + 1; i++) {
			struct iwl_fw_error_dump_paging *paging;
			struct page *pages =
				mvm->fw_paging_db[i].fw_paging_block;

			dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
			dump_data->len = cpu_to_le32(sizeof(*paging) +
						     PAGING_BLOCK_SIZE);
			paging = (void *)dump_data->data;
			paging->index = cpu_to_le32(i);
			memcpy(paging->data, page_address(pages),
			       PAGING_BLOCK_SIZE);
			dump_data = iwl_fw_error_next_data(dump_data);
		}
	}

	if (prph_len)
		iwl_dump_prph(mvm->trans, &dump_data);

dump_trans_data:
	fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans,
						       mvm->fw_dump_trig);
	fw_error_dump->op_mode_len = file_len;
	if (fw_error_dump->trans_ptr)
		file_len += fw_error_dump->trans_ptr->len;
	dump_file->file_len = cpu_to_le32(file_len);

	dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
		      GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);

out:
	iwl_mvm_free_fw_dump_desc(mvm);
	mvm->fw_dump_trig = NULL;
	clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
}
예제 #6
0
파일: nvm.c 프로젝트: asmalldev/linux
int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic)
{
	int ret, section;
	u32 size_read = 0;
	u8 *nvm_buffer, *temp;
	const char *nvm_file_B = mvm->cfg->default_nvm_file_B_step;
	const char *nvm_file_C = mvm->cfg->default_nvm_file_C_step;

	if (WARN_ON_ONCE(mvm->cfg->nvm_hw_section_num >= NVM_MAX_NUM_SECTIONS))
		return -EINVAL;

	/* load NVM values from nic */
	if (read_nvm_from_nic) {
		/* Read From FW NVM */
		IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");

		nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size,
				     GFP_KERNEL);
		if (!nvm_buffer)
			return -ENOMEM;
		for (section = 0; section < NVM_MAX_NUM_SECTIONS; section++) {
			/* we override the constness for initial read */
			ret = iwl_nvm_read_section(mvm, section, nvm_buffer,
						   size_read);
			if (ret < 0)
				continue;
			size_read += ret;
			temp = kmemdup(nvm_buffer, ret, GFP_KERNEL);
			if (!temp) {
				ret = -ENOMEM;
				break;
			}

			iwl_mvm_nvm_fixups(mvm, section, temp, ret);

			mvm->nvm_sections[section].data = temp;
			mvm->nvm_sections[section].length = ret;

#ifdef CONFIG_IWLWIFI_DEBUGFS
			switch (section) {
			case NVM_SECTION_TYPE_SW:
				mvm->nvm_sw_blob.data = temp;
				mvm->nvm_sw_blob.size  = ret;
				break;
			case NVM_SECTION_TYPE_CALIBRATION:
				mvm->nvm_calib_blob.data = temp;
				mvm->nvm_calib_blob.size  = ret;
				break;
			case NVM_SECTION_TYPE_PRODUCTION:
				mvm->nvm_prod_blob.data = temp;
				mvm->nvm_prod_blob.size  = ret;
				break;
			case NVM_SECTION_TYPE_PHY_SKU:
				mvm->nvm_phy_sku_blob.data = temp;
				mvm->nvm_phy_sku_blob.size  = ret;
				break;
			default:
				if (section == mvm->cfg->nvm_hw_section_num) {
					mvm->nvm_hw_blob.data = temp;
					mvm->nvm_hw_blob.size = ret;
					break;
				}
			}
#endif
		}
		if (!size_read)
			IWL_ERR(mvm, "OTP is blank\n");
		kfree(nvm_buffer);
	}

	/* Only if PNVM selected in the mod param - load external NVM  */
	if (mvm->nvm_file_name) {
		/* read External NVM file from the mod param */
		ret = iwl_mvm_read_external_nvm(mvm);
		if (ret) {
			/* choose the nvm_file name according to the
			 * HW step
			 */
			if (CSR_HW_REV_STEP(mvm->trans->hw_rev) ==
			    SILICON_B_STEP)
				mvm->nvm_file_name = nvm_file_B;
			else
				mvm->nvm_file_name = nvm_file_C;

			if ((ret == -EFAULT || ret == -ENOENT) &&
			    mvm->nvm_file_name) {
				/* in case nvm file was failed try again */
				ret = iwl_mvm_read_external_nvm(mvm);
				if (ret)
					return ret;
			} else {
				return ret;
			}
		}
	}

	/* parse the relevant nvm sections */
	mvm->nvm_data = iwl_parse_nvm_sections(mvm);
	if (!mvm->nvm_data)
		return -ENODATA;
	IWL_DEBUG_EEPROM(mvm->trans->dev, "nvm version = %x\n",
			 mvm->nvm_data->nvm_version);

	return 0;
}
예제 #7
0
파일: nvm.c 프로젝트: asmalldev/linux
/*
 * Reads external NVM from a file into mvm->nvm_sections
 *
 * HOW TO CREATE THE NVM FILE FORMAT:
 * ------------------------------
 * 1. create hex file, format:
 *      3800 -> header
 *      0000 -> header
 *      5a40 -> data
 *
 *   rev - 6 bit (word1)
 *   len - 10 bit (word1)
 *   id - 4 bit (word2)
 *   rsv - 12 bit (word2)
 *
 * 2. flip 8bits with 8 bits per line to get the right NVM file format
 *
 * 3. create binary file from the hex file
 *
 * 4. save as "iNVM_xxx.bin" under /lib/firmware
 */
static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
{
	int ret, section_size;
	u16 section_id;
	const struct firmware *fw_entry;
	const struct {
		__le16 word1;
		__le16 word2;
		u8 data[];
	} *file_sec;
	const u8 *eof;
	u8 *temp;
	int max_section_size;
	const __le32 *dword_buff;

#define NVM_WORD1_LEN(x) (8 * (x & 0x03FF))
#define NVM_WORD2_ID(x) (x >> 12)
#define NVM_WORD2_LEN_FAMILY_8000(x) (2 * ((x & 0xFF) << 8 | x >> 8))
#define NVM_WORD1_ID_FAMILY_8000(x) (x >> 4)
#define NVM_HEADER_0	(0x2A504C54)
#define NVM_HEADER_1	(0x4E564D2A)
#define NVM_HEADER_SIZE	(4 * sizeof(u32))

	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from external NVM\n");

	/* Maximal size depends on HW family and step */
	if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
		max_section_size = IWL_MAX_NVM_SECTION_SIZE;
	else
		max_section_size = IWL_MAX_NVM_8000_SECTION_SIZE;

	/*
	 * Obtain NVM image via request_firmware. Since we already used
	 * request_firmware_nowait() for the firmware binary load and only
	 * get here after that we assume the NVM request can be satisfied
	 * synchronously.
	 */
	ret = request_firmware(&fw_entry, mvm->nvm_file_name,
			       mvm->trans->dev);
	if (ret) {
		IWL_ERR(mvm, "ERROR: %s isn't available %d\n",
			mvm->nvm_file_name, ret);
		return ret;
	}

	IWL_INFO(mvm, "Loaded NVM file %s (%zu bytes)\n",
		 mvm->nvm_file_name, fw_entry->size);

	if (fw_entry->size > MAX_NVM_FILE_LEN) {
		IWL_ERR(mvm, "NVM file too large\n");
		ret = -EINVAL;
		goto out;
	}

	eof = fw_entry->data + fw_entry->size;
	dword_buff = (__le32 *)fw_entry->data;

	/* some NVM file will contain a header.
	 * The header is identified by 2 dwords header as follow:
	 * dword[0] = 0x2A504C54
	 * dword[1] = 0x4E564D2A
	 *
	 * This header must be skipped when providing the NVM data to the FW.
	 */
	if (fw_entry->size > NVM_HEADER_SIZE &&
	    dword_buff[0] == cpu_to_le32(NVM_HEADER_0) &&
	    dword_buff[1] == cpu_to_le32(NVM_HEADER_1)) {
		file_sec = (void *)(fw_entry->data + NVM_HEADER_SIZE);
		IWL_INFO(mvm, "NVM Version %08X\n", le32_to_cpu(dword_buff[2]));
		IWL_INFO(mvm, "NVM Manufacturing date %08X\n",
			 le32_to_cpu(dword_buff[3]));

		/* nvm file validation, dword_buff[2] holds the file version */
		if ((CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_C_STEP &&
		     le32_to_cpu(dword_buff[2]) < 0xE4A) ||
		    (CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP &&
		     le32_to_cpu(dword_buff[2]) >= 0xE4A)) {
			ret = -EFAULT;
			goto out;
		}
	} else {
		file_sec = (void *)fw_entry->data;
	}

	while (true) {
		if (file_sec->data > eof) {
			IWL_ERR(mvm,
				"ERROR - NVM file too short for section header\n");
			ret = -EINVAL;
			break;
		}

		/* check for EOF marker */
		if (!file_sec->word1 && !file_sec->word2) {
			ret = 0;
			break;
		}

		if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) {
			section_size =
				2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
			section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
		} else {
			section_size = 2 * NVM_WORD2_LEN_FAMILY_8000(
						le16_to_cpu(file_sec->word2));
			section_id = NVM_WORD1_ID_FAMILY_8000(
						le16_to_cpu(file_sec->word1));
		}

		if (section_size > max_section_size) {
			IWL_ERR(mvm, "ERROR - section too large (%d)\n",
				section_size);
			ret = -EINVAL;
			break;
		}

		if (!section_size) {
			IWL_ERR(mvm, "ERROR - section empty\n");
			ret = -EINVAL;
			break;
		}

		if (file_sec->data + section_size > eof) {
			IWL_ERR(mvm,
				"ERROR - NVM file too short for section (%d bytes)\n",
				section_size);
			ret = -EINVAL;
			break;
		}

		if (WARN(section_id >= NVM_MAX_NUM_SECTIONS,
			 "Invalid NVM section ID %d\n", section_id)) {
			ret = -EINVAL;
			break;
		}

		temp = kmemdup(file_sec->data, section_size, GFP_KERNEL);
		if (!temp) {
			ret = -ENOMEM;
			break;
		}

		iwl_mvm_nvm_fixups(mvm, section_id, temp, section_size);

		kfree(mvm->nvm_sections[section_id].data);
		mvm->nvm_sections[section_id].data = temp;
		mvm->nvm_sections[section_id].length = section_size;

		/* advance to the next section */
		file_sec = (void *)(file_sec->data + section_size);
	}
out:
	release_firmware(fw_entry);
	return ret;
}
예제 #8
0
파일: ops.c 프로젝트: jay-caoj/linux-3.9.6
static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
{
	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
	u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
	u32 reg_val = 0;

	/*
	 * We can't upload the correct value to the INIT image
	 * as we don't have nvm_data by that time.
	 *
	 * TODO: Figure out what we should do here
	 */
	if (mvm->nvm_data) {
		radio_cfg_type = mvm->nvm_data->radio_cfg_type;
		radio_cfg_step = mvm->nvm_data->radio_cfg_step;
		radio_cfg_dash = mvm->nvm_data->radio_cfg_dash;
	} else {
		radio_cfg_type = 0;
		radio_cfg_step = 0;
		radio_cfg_dash = 0;
	}

	/* SKU control */
	reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
				CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
	reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
				CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;

	/* radio configuration */
	reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
	reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
	reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;

	WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
		 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);

	/* silicon bits */
	reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
	reg_val |= CSR_HW_IF_CONFIG_REG_BIT_MAC_SI;

	iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
				CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
				CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
				CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
				CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
				reg_val);

	IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
		       radio_cfg_step, radio_cfg_dash);

	/*
	 * W/A : NIC is stuck in a reset state after Early PCIe power off
	 * (PCIe power is lost before PERST# is asserted), causing ME FW
	 * to lose ownership and not being able to obtain it back.
	 */
	iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
			       APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
			       ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
}