kernel/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c

   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
  11 static 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
  24 int 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
  42 int 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
  64 static void
  65 qlcnic_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  **/
  95 static 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
 144 static 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
 162 static 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  **/
 192 int 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
 242 int 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                 msleep(1000);
 251                 state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
 252         }
 253
 254         if (!idc->vnic_wait_limit) {
 255                 dev_err(&adapter->pdev->dev,
 256                         "vNIC mode not operational, state check timed out.\n");
 257                 return -EIO;
 258         }
 259
 260         return 0;
 261 }
 262
 263 int qlcnic_83xx_set_port_eswitch_status(struct qlcnic_adapter *adapter,
 264                                         int func, int *port_id)
 265 {
 266         struct qlcnic_info nic_info;
 267         int err = 0;
 268
 269         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 270
 271         err = qlcnic_get_nic_info(adapter, &nic_info, func);
 272         if (err)
 273                 return err;
 274
 275         if (nic_info.capabilities & QLC_83XX_ESWITCH_CAPABILITY)
 276                 *port_id = nic_info.phys_port;
 277         else
 278                 err = -EIO;
 279
 280         if (!err)
 281                 adapter->eswitch[*port_id].flags |= QLCNIC_SWITCH_ENABLE;
 282
 283         return err;
 284 }