Quelle  qlcnic_83xx_vnic.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * QLogic qlcnic NIC Driver
 * Copyright (c) 2009-2013 QLogic Corporation
 */

#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_config_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;
}