text: /*
   * QLogic qlcnic NIC Driver
   * Copyright (c) 2009-2013 QLogic Corporation
   *
   * See LICENSE.qlcnic for copyright and licensing details.
   */
  
  #include "qlcnic.h"
  #include "qlcnic_hw.h"
  
  static int qlcnic_83xx_enable_vnic_mode(struct qlcnic_adapter *adapter, int lock)
  {
  	if (lock) {
  		if (qlcnic_83xx_lock_driver(adapter))
  			return -EBUSY;
  	}
  	QLCWRX(adapter->ahw, QLC_83XX_VNIC_STATE, QLCNIC_DEV_NPAR_OPER);
  	if (lock)
  		qlcnic_83xx_unlock_driver(adapter);
  
  	return 0;
  }
  
  int qlcnic_83xx_disable_vnic_mode(struct qlcnic_adapter *adapter, int lock)
  {
  	struct qlcnic_hardware_context *ahw = adapter->ahw;
  
  	if (lock) {
  		if (qlcnic_83xx_lock_driver(adapter))
  			return -EBUSY;
  	}
  
  	QLCWRX(adapter->ahw, QLC_83XX_VNIC_STATE, QLCNIC_DEV_NPAR_NON_OPER);
  	ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
  
  	if (lock)
  		qlcnic_83xx_unlock_driver(adapter);
  
  	return 0;
  }
  
  int qlcnic_83xx_set_vnic_opmode(struct qlcnic_adapter *adapter)
  {
  	u8 id;
  	int ret = -EBUSY;
  	u32 data = QLCNIC_MGMT_FUNC;
  	struct qlcnic_hardware_context *ahw = adapter->ahw;
  
  	if (qlcnic_83xx_lock_driver(adapter))
  		return ret;
  
  	id = ahw->pci_func;
  	data = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
  	data = (data & ~QLC_83XX_SET_FUNC_OPMODE(0x3, id)) |
  	       QLC_83XX_SET_FUNC_OPMODE(QLCNIC_MGMT_FUNC, id);
  
  	QLCWRX(adapter->ahw, QLC_83XX_DRV_OP_MODE, data);
  
  	qlcnic_83xx_unlock_driver(adapter);
  
  	return 0;
  }
  
  static void
  qlcnic_83xx_config_vnic_buff_descriptors(struct qlcnic_adapter *adapter)
  {
  	struct qlcnic_hardware_context *ahw = adapter->ahw;
  
  	if (ahw->port_type == QLCNIC_XGBE) {
  		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
  		adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
  		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  		adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  
  	} else if (ahw->port_type == QLCNIC_GBE) {
  		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
  		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  		adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  		adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
  	}
  	adapter->num_txd = MAX_CMD_DESCRIPTORS;
  	adapter->max_rds_rings = MAX_RDS_RINGS;
  }
  
  
  /**
   * qlcnic_83xx_init_mgmt_vnic
   *
   * @adapter: adapter structure
   * Management virtual NIC sets the operational mode of other vNIC's and
   * configures embedded switch (ESWITCH).
   * Returns: Success(0) or error code.
   *
   **/
  static int qlcnic_83xx_init_mgmt_vnic(struct qlcnic_adapter *adapter)
  {
  	struct qlcnic_hardware_context *ahw = adapter->ahw;
  	struct device *dev = &adapter->pdev->dev;
  	struct qlcnic_npar_info *npar;
  	int i, err = -EIO;
  
  	qlcnic_83xx_get_minidump_template(adapter);
  
  	if (!(adapter->flags & QLCNIC_ADAPTER_INITIALIZED)) {
  		if (qlcnic_init_pci_info(adapter))
  			return err;
  
  		npar = adapter->npars;
  
  		for (i = 0; i < ahw->total_nic_func; i++, npar++) {
  			dev_info(dev, "id:%d active:%d type:%d port:%d min_bw:%d max_bw:%d mac_addr:%pM\n",
  				 npar->pci_func, npar->active, npar->type,
  				 npar->phy_port, npar->min_bw, npar->max_bw,
  				 npar->mac);
  		}
  
  		dev_info(dev, "Max functions = %d, active functions = %d\n",
  			 ahw->max_pci_func, ahw->total_nic_func);
  
  		if (qlcnic_83xx_set_vnic_opmode(adapter))
  			return err;
  
  		if (qlcnic_set_default_offload_settings(adapter))
  			return err;
  	} else {
  		if (qlcnic_reset_npar_config(adapter))
  			return err;
  	}
  
  	if (qlcnic_83xx_get_port_info(adapter))
  		return err;
  
  	qlcnic_83xx_config_vnic_buff_descriptors(adapter);
  	ahw->msix_supported = qlcnic_use_msi_x ? 1 : 0;
  	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
  	qlcnic_83xx_enable_vnic_mode(adapter, 1);
  
  	dev_info(dev, "HAL Version: %d, Management function\n",
  		 ahw->fw_hal_version);
  
  	return 0;
  }
  
  static int qlcnic_83xx_init_privileged_vnic(struct qlcnic_adapter *adapter)
  {
  	int err = -EIO;
  
  	qlcnic_83xx_get_minidump_template(adapter);
  	if (qlcnic_83xx_get_port_info(adapter))
  		return err;
  
  	qlcnic_83xx_config_vnic_buff_descriptors(adapter);
  	adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
  	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
  
  	dev_info(&adapter->pdev->dev,
  		 "HAL Version: %d, Privileged function\n",
  		 adapter->ahw->fw_hal_version);
  	return 0;
  }
  
  static int qlcnic_83xx_init_non_privileged_vnic(struct qlcnic_adapter *adapter)
  {
  	int err = -EIO;
  
  	qlcnic_83xx_get_fw_version(adapter);
  	if (qlcnic_set_eswitch_port_config(adapter))
  		return err;
  
  	if (qlcnic_83xx_get_port_info(adapter))
  		return err;
  
  	qlcnic_83xx_config_vnic_buff_descriptors(adapter);
  	adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
  	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
  
  	dev_info(&adapter->pdev->dev, "HAL Version: %d, Virtual function\n",
  		 adapter->ahw->fw_hal_version);
  
  	return 0;
  }
  
  /**
   * qlcnic_83xx_vnic_opmode
   *
   * @adapter: adapter structure
   * Identify virtual NIC operational modes.
   *
   * Returns: Success(0) or error code.
   *
   **/
  int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
  {
  	u32 op_mode, priv_level;
  	struct qlcnic_hardware_context *ahw = adapter->ahw;
  	struct qlcnic_nic_template *nic_ops = adapter->nic_ops;
  
  	qlcnic_get_func_no(adapter);
  	op_mode = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
  
  	if (op_mode == QLC_83XX_DEFAULT_OPMODE)
  		priv_level = QLCNIC_MGMT_FUNC;
  	else
  		priv_level = QLC_83XX_GET_FUNC_PRIVILEGE(op_mode,
  							 ahw->pci_func);
  	switch (priv_level) {
  	case QLCNIC_NON_PRIV_FUNC:
  		ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
  		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
  		nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
  		break;
  	case QLCNIC_PRIV_FUNC:
  		ahw->op_mode = QLCNIC_PRIV_FUNC;
  		ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
  		nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
  		break;
  	case QLCNIC_MGMT_FUNC:
  		ahw->op_mode = QLCNIC_MGMT_FUNC;
  		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
  		nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
  		break;
  	default:
  		dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
  		return -EIO;
  	}
  
  	if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY) {
  		adapter->flags |= QLCNIC_ESWITCH_ENABLED;
  		if (adapter->drv_mac_learn)
  			adapter->rx_mac_learn = true;
  	} else {
  		adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
  		adapter->rx_mac_learn = false;
  	}
  
  	ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
  	ahw->idc.vnic_wait_limit = QLCNIC_DEV_NPAR_OPER_TIMEO;
  
  	return 0;
  }
  
  int qlcnic_83xx_check_vnic_state(struct qlcnic_adapter *adapter)
  {
  	struct qlcnic_hardware_context *ahw = adapter->ahw;
  	struct qlc_83xx_idc *idc = &ahw->idc;
  	u32 state;
  
  	state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
  	while (state != QLCNIC_DEV_NPAR_OPER && idc->vnic_wait_limit) {
  		idc->vnic_wait_limit--;
  		msleep(1000);
  		state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
  	}
  
  	if (state != QLCNIC_DEV_NPAR_OPER) {
  		dev_err(&adapter->pdev->dev,
  			"vNIC mode not operational, state check timed out.\n");
  		return -EIO;
  	}
  
  	return 0;
  }
  
  int qlcnic_83xx_set_port_eswitch_status(struct qlcnic_adapter *adapter,
  					int func, int *port_id)
  {
  	struct qlcnic_info nic_info;
  	int err = 0;
  
  	memset(&nic_info, 0, sizeof(struct qlcnic_info));
  
  	err = qlcnic_get_nic_info(adapter, &nic_info, func);
  	if (err)
  		return err;
  
  	if (nic_info.capabilities & QLC_83XX_ESWITCH_CAPABILITY)
  		*port_id = nic_info.phys_port;
  	else
  		err = -EIO;
  
  	if (!err)
  		adapter->eswitch[*port_id].flags |= QLCNIC_SWITCH_ENABLE;
  
  	return err;
  }
  