linux/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
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   1/*
   2 * QLogic qlcnic NIC Driver
   3 * Copyright (c) 2009-2013 QLogic Corporation
   4 *
   5 * See LICENSE.qlcnic for copyright and licensing details.
   6 */
   7
   8#include "qlcnic.h"
   9#include "qlcnic_hw.h"
  10
  11static int qlcnic_83xx_enable_vnic_mode(struct qlcnic_adapter *adapter, int lock)
  12{
  13        if (lock) {
  14                if (qlcnic_83xx_lock_driver(adapter))
  15                        return -EBUSY;
  16        }
  17        QLCWRX(adapter->ahw, QLC_83XX_VNIC_STATE, QLCNIC_DEV_NPAR_OPER);
  18        if (lock)
  19                qlcnic_83xx_unlock_driver(adapter);
  20
  21        return 0;
  22}
  23
  24int qlcnic_83xx_disable_vnic_mode(struct qlcnic_adapter *adapter, int lock)
  25{
  26        struct qlcnic_hardware_context *ahw = adapter->ahw;
  27
  28        if (lock) {
  29                if (qlcnic_83xx_lock_driver(adapter))
  30                        return -EBUSY;
  31        }
  32
  33        QLCWRX(adapter->ahw, QLC_83XX_VNIC_STATE, QLCNIC_DEV_NPAR_NON_OPER);
  34        ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
  35
  36        if (lock)
  37                qlcnic_83xx_unlock_driver(adapter);
  38
  39        return 0;
  40}
  41
  42int qlcnic_83xx_set_vnic_opmode(struct qlcnic_adapter *adapter)
  43{
  44        u8 id;
  45        int ret = -EBUSY;
  46        u32 data = QLCNIC_MGMT_FUNC;
  47        struct qlcnic_hardware_context *ahw = adapter->ahw;
  48
  49        if (qlcnic_83xx_lock_driver(adapter))
  50                return ret;
  51
  52        id = ahw->pci_func;
  53        data = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
  54        data = (data & ~QLC_83XX_SET_FUNC_OPMODE(0x3, id)) |
  55               QLC_83XX_SET_FUNC_OPMODE(QLCNIC_MGMT_FUNC, id);
  56
  57        QLCWRX(adapter->ahw, QLC_83XX_DRV_OP_MODE, data);
  58
  59        qlcnic_83xx_unlock_driver(adapter);
  60
  61        return 0;
  62}
  63
  64static void
  65qlcnic_83xx_config_vnic_buff_descriptors(struct qlcnic_adapter *adapter)
  66{
  67        struct qlcnic_hardware_context *ahw = adapter->ahw;
  68
  69        if (ahw->port_type == QLCNIC_XGBE) {
  70                adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
  71                adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
  72                adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  73                adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  74
  75        } else if (ahw->port_type == QLCNIC_GBE) {
  76                adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
  77                adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  78                adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  79                adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
  80        }
  81        adapter->num_txd = MAX_CMD_DESCRIPTORS;
  82        adapter->max_rds_rings = MAX_RDS_RINGS;
  83}
  84
  85
  86/**
  87 * qlcnic_83xx_init_mgmt_vnic
  88 *
  89 * @adapter: adapter structure
  90 * Management virtual NIC sets the operational mode of other vNIC's and
  91 * configures embedded switch (ESWITCH).
  92 * Returns: Success(0) or error code.
  93 *
  94 **/
  95static int qlcnic_83xx_init_mgmt_vnic(struct qlcnic_adapter *adapter)
  96{
  97        struct qlcnic_hardware_context *ahw = adapter->ahw;
  98        struct device *dev = &adapter->pdev->dev;
  99        struct qlcnic_npar_info *npar;
 100        int i, err = -EIO;
 101
 102        qlcnic_83xx_get_minidump_template(adapter);
 103
 104        if (!(adapter->flags & QLCNIC_ADAPTER_INITIALIZED)) {
 105                if (qlcnic_init_pci_info(adapter))
 106                        return err;
 107
 108                npar = adapter->npars;
 109
 110                for (i = 0; i < ahw->total_nic_func; i++, npar++) {
 111                        dev_info(dev, "id:%d active:%d type:%d port:%d min_bw:%d max_bw:%d mac_addr:%pM\n",
 112                                 npar->pci_func, npar->active, npar->type,
 113                                 npar->phy_port, npar->min_bw, npar->max_bw,
 114                                 npar->mac);
 115                }
 116
 117                dev_info(dev, "Max functions = %d, active functions = %d\n",
 118                         ahw->max_pci_func, ahw->total_nic_func);
 119
 120                if (qlcnic_83xx_set_vnic_opmode(adapter))
 121                        return err;
 122
 123                if (qlcnic_set_default_offload_settings(adapter))
 124                        return err;
 125        } else {
 126                if (qlcnic_reset_npar_config(adapter))
 127                        return err;
 128        }
 129
 130        if (qlcnic_83xx_get_port_info(adapter))
 131                return err;
 132
 133        qlcnic_83xx_config_vnic_buff_descriptors(adapter);
 134        ahw->msix_supported = qlcnic_use_msi_x ? 1 : 0;
 135        adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 136        qlcnic_83xx_enable_vnic_mode(adapter, 1);
 137
 138        dev_info(dev, "HAL Version: %d, Management function\n",
 139                 ahw->fw_hal_version);
 140
 141        return 0;
 142}
 143
 144static int qlcnic_83xx_init_privileged_vnic(struct qlcnic_adapter *adapter)
 145{
 146        int err = -EIO;
 147
 148        qlcnic_83xx_get_minidump_template(adapter);
 149        if (qlcnic_83xx_get_port_info(adapter))
 150                return err;
 151
 152        qlcnic_83xx_config_vnic_buff_descriptors(adapter);
 153        adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 154        adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 155
 156        dev_info(&adapter->pdev->dev,
 157                 "HAL Version: %d, Privileged function\n",
 158                 adapter->ahw->fw_hal_version);
 159        return 0;
 160}
 161
 162static int qlcnic_83xx_init_non_privileged_vnic(struct qlcnic_adapter *adapter)
 163{
 164        int err = -EIO;
 165
 166        qlcnic_83xx_get_fw_version(adapter);
 167        if (qlcnic_set_eswitch_port_config(adapter))
 168                return err;
 169
 170        if (qlcnic_83xx_get_port_info(adapter))
 171                return err;
 172
 173        qlcnic_83xx_config_vnic_buff_descriptors(adapter);
 174        adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 175        adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 176
 177        dev_info(&adapter->pdev->dev, "HAL Version: %d, Virtual function\n",
 178                 adapter->ahw->fw_hal_version);
 179
 180        return 0;
 181}
 182
 183/**
 184 * qlcnic_83xx_vnic_opmode
 185 *
 186 * @adapter: adapter structure
 187 * Identify virtual NIC operational modes.
 188 *
 189 * Returns: Success(0) or error code.
 190 *
 191 **/
 192int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
 193{
 194        u32 op_mode, priv_level;
 195        struct qlcnic_hardware_context *ahw = adapter->ahw;
 196        struct qlcnic_nic_template *nic_ops = adapter->nic_ops;
 197
 198        qlcnic_get_func_no(adapter);
 199        op_mode = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
 200
 201        if (op_mode == QLC_83XX_DEFAULT_OPMODE)
 202                priv_level = QLCNIC_MGMT_FUNC;
 203        else
 204                priv_level = QLC_83XX_GET_FUNC_PRIVILEGE(op_mode,
 205                                                         ahw->pci_func);
 206        switch (priv_level) {
 207        case QLCNIC_NON_PRIV_FUNC:
 208                ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 209                ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 210                nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
 211                break;
 212        case QLCNIC_PRIV_FUNC:
 213                ahw->op_mode = QLCNIC_PRIV_FUNC;
 214                ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
 215                nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
 216                break;
 217        case QLCNIC_MGMT_FUNC:
 218                ahw->op_mode = QLCNIC_MGMT_FUNC;
 219                ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 220                nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
 221                break;
 222        default:
 223                dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
 224                return -EIO;
 225        }
 226
 227        if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY) {
 228                adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 229                if (adapter->drv_mac_learn)
 230                        adapter->rx_mac_learn = true;
 231        } else {
 232                adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 233                adapter->rx_mac_learn = false;
 234        }
 235
 236        ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
 237        ahw->idc.vnic_wait_limit = QLCNIC_DEV_NPAR_OPER_TIMEO;
 238
 239        return 0;
 240}
 241
 242int qlcnic_83xx_check_vnic_state(struct qlcnic_adapter *adapter)
 243{
 244        struct qlcnic_hardware_context *ahw = adapter->ahw;
 245        struct qlc_83xx_idc *idc = &ahw->idc;
 246        u32 state;
 247
 248        state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
 249        while (state != QLCNIC_DEV_NPAR_OPER && idc->vnic_wait_limit) {
 250                idc->vnic_wait_limit--;
 251                msleep(1000);
 252                state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
 253        }
 254
 255        if (state != QLCNIC_DEV_NPAR_OPER) {
 256                dev_err(&adapter->pdev->dev,
 257                        "vNIC mode not operational, state check timed out.\n");
 258                return -EIO;
 259        }
 260
 261        return 0;
 262}
 263
 264int qlcnic_83xx_set_port_eswitch_status(struct qlcnic_adapter *adapter,
 265                                        int func, int *port_id)
 266{
 267        struct qlcnic_info nic_info;
 268        int err = 0;
 269
 270        memset(&nic_info, 0, sizeof(struct qlcnic_info));
 271
 272        err = qlcnic_get_nic_info(adapter, &nic_info, func);
 273        if (err)
 274                return err;
 275
 276        if (nic_info.capabilities & QLC_83XX_ESWITCH_CAPABILITY)
 277                *port_id = nic_info.phys_port;
 278        else
 279                err = -EIO;
 280
 281        if (!err)
 282                adapter->eswitch[*port_id].flags |= QLCNIC_SWITCH_ENABLE;
 283
 284        return err;
 285}
 286