drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.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 <linux/if_vlan.h>
   9 #include <linux/ipv6.h>
  10 #include <linux/ethtool.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/aer.h>
  13
  14 #include "qlcnic.h"
  15 #include "qlcnic_sriov.h"
  16
  17 static void __qlcnic_83xx_process_aen(struct qlcnic_adapter *);
  18 static int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *, u8);
  19 static void qlcnic_83xx_configure_mac(struct qlcnic_adapter *, u8 *, u8,
  20                                       struct qlcnic_cmd_args *);
  21 static int qlcnic_83xx_get_port_config(struct qlcnic_adapter *);
  22 static irqreturn_t qlcnic_83xx_handle_aen(int, void *);
  23 static pci_ers_result_t qlcnic_83xx_io_error_detected(struct pci_dev *,
  24                                                       pci_channel_state_t);
  25 static int qlcnic_83xx_set_port_config(struct qlcnic_adapter *);
  26 static pci_ers_result_t qlcnic_83xx_io_slot_reset(struct pci_dev *);
  27 static void qlcnic_83xx_io_resume(struct pci_dev *);
  28 static int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *, u8);
  29 static void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *);
  30 static int qlcnic_83xx_resume(struct qlcnic_adapter *);
  31 static int qlcnic_83xx_shutdown(struct pci_dev *);
  32 static void qlcnic_83xx_get_beacon_state(struct qlcnic_adapter *);
  33
  34 #define RSS_HASHTYPE_IP_TCP             0x3
  35 #define QLC_83XX_FW_MBX_CMD             0
  36 #define QLC_SKIP_INACTIVE_PCI_REGS      7
  37 #define QLC_MAX_LEGACY_FUNC_SUPP        8
  38
  39 /* 83xx Module type */
  40 #define QLC_83XX_MODULE_FIBRE_10GBASE_LRM       0x1 /* 10GBase-LRM */
  41 #define QLC_83XX_MODULE_FIBRE_10GBASE_LR        0x2 /* 10GBase-LR */
  42 #define QLC_83XX_MODULE_FIBRE_10GBASE_SR        0x3 /* 10GBase-SR */
  43 #define QLC_83XX_MODULE_DA_10GE_PASSIVE_CP      0x4 /* 10GE passive
  44                                                      * copper(compliant)
  45                                                      */
  46 #define QLC_83XX_MODULE_DA_10GE_ACTIVE_CP       0x5 /* 10GE active limiting
  47                                                      * copper(compliant)
  48                                                      */
  49 #define QLC_83XX_MODULE_DA_10GE_LEGACY_CP       0x6 /* 10GE passive copper
  50                                                      * (legacy, best effort)
  51                                                      */
  52 #define QLC_83XX_MODULE_FIBRE_1000BASE_SX       0x7 /* 1000Base-SX */
  53 #define QLC_83XX_MODULE_FIBRE_1000BASE_LX       0x8 /* 1000Base-LX */
  54 #define QLC_83XX_MODULE_FIBRE_1000BASE_CX       0x9 /* 1000Base-CX */
  55 #define QLC_83XX_MODULE_TP_1000BASE_T           0xa /* 1000Base-T*/
  56 #define QLC_83XX_MODULE_DA_1GE_PASSIVE_CP       0xb /* 1GE passive copper
  57                                                      * (legacy, best effort)
  58                                                      */
  59 #define QLC_83XX_MODULE_UNKNOWN                 0xf /* Unknown module type */
  60
  61 /* Port types */
  62 #define QLC_83XX_10_CAPABLE      BIT_8
  63 #define QLC_83XX_100_CAPABLE     BIT_9
  64 #define QLC_83XX_1G_CAPABLE      BIT_10
  65 #define QLC_83XX_10G_CAPABLE     BIT_11
  66 #define QLC_83XX_AUTONEG_ENABLE  BIT_15
  67
  68 static const struct qlcnic_mailbox_metadata qlcnic_83xx_mbx_tbl[] = {
  69         {QLCNIC_CMD_CONFIGURE_IP_ADDR, 6, 1},
  70         {QLCNIC_CMD_CONFIG_INTRPT, 18, 34},
  71         {QLCNIC_CMD_CREATE_RX_CTX, 136, 27},
  72         {QLCNIC_CMD_DESTROY_RX_CTX, 2, 1},
  73         {QLCNIC_CMD_CREATE_TX_CTX, 54, 18},
  74         {QLCNIC_CMD_DESTROY_TX_CTX, 2, 1},
  75         {QLCNIC_CMD_CONFIGURE_MAC_LEARNING, 2, 1},
  76         {QLCNIC_CMD_INTRPT_TEST, 22, 12},
  77         {QLCNIC_CMD_SET_MTU, 3, 1},
  78         {QLCNIC_CMD_READ_PHY, 4, 2},
  79         {QLCNIC_CMD_WRITE_PHY, 5, 1},
  80         {QLCNIC_CMD_READ_HW_REG, 4, 1},
  81         {QLCNIC_CMD_GET_FLOW_CTL, 4, 2},
  82         {QLCNIC_CMD_SET_FLOW_CTL, 4, 1},
  83         {QLCNIC_CMD_READ_MAX_MTU, 4, 2},
  84         {QLCNIC_CMD_READ_MAX_LRO, 4, 2},
  85         {QLCNIC_CMD_MAC_ADDRESS, 4, 3},
  86         {QLCNIC_CMD_GET_PCI_INFO, 1, 129},
  87         {QLCNIC_CMD_GET_NIC_INFO, 2, 19},
  88         {QLCNIC_CMD_SET_NIC_INFO, 32, 1},
  89         {QLCNIC_CMD_GET_ESWITCH_CAPABILITY, 4, 3},
  90         {QLCNIC_CMD_TOGGLE_ESWITCH, 4, 1},
  91         {QLCNIC_CMD_GET_ESWITCH_STATUS, 4, 3},
  92         {QLCNIC_CMD_SET_PORTMIRRORING, 4, 1},
  93         {QLCNIC_CMD_CONFIGURE_ESWITCH, 4, 1},
  94         {QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG, 4, 3},
  95         {QLCNIC_CMD_GET_ESWITCH_STATS, 5, 1},
  96         {QLCNIC_CMD_CONFIG_PORT, 4, 1},
  97         {QLCNIC_CMD_TEMP_SIZE, 1, 4},
  98         {QLCNIC_CMD_GET_TEMP_HDR, 5, 5},
  99         {QLCNIC_CMD_GET_LINK_EVENT, 2, 1},
 100         {QLCNIC_CMD_CONFIG_MAC_VLAN, 4, 3},
 101         {QLCNIC_CMD_CONFIG_INTR_COAL, 6, 1},
 102         {QLCNIC_CMD_CONFIGURE_RSS, 14, 1},
 103         {QLCNIC_CMD_CONFIGURE_LED, 2, 1},
 104         {QLCNIC_CMD_CONFIGURE_MAC_RX_MODE, 2, 1},
 105         {QLCNIC_CMD_CONFIGURE_HW_LRO, 2, 1},
 106         {QLCNIC_CMD_GET_STATISTICS, 2, 80},
 107         {QLCNIC_CMD_SET_PORT_CONFIG, 2, 1},
 108         {QLCNIC_CMD_GET_PORT_CONFIG, 2, 2},
 109         {QLCNIC_CMD_GET_LINK_STATUS, 2, 4},
 110         {QLCNIC_CMD_IDC_ACK, 5, 1},
 111         {QLCNIC_CMD_INIT_NIC_FUNC, 3, 1},
 112         {QLCNIC_CMD_STOP_NIC_FUNC, 2, 1},
 113         {QLCNIC_CMD_SET_LED_CONFIG, 5, 1},
 114         {QLCNIC_CMD_GET_LED_CONFIG, 1, 5},
 115         {QLCNIC_CMD_83XX_SET_DRV_VER, 4, 1},
 116         {QLCNIC_CMD_ADD_RCV_RINGS, 130, 26},
 117         {QLCNIC_CMD_CONFIG_VPORT, 4, 4},
 118         {QLCNIC_CMD_BC_EVENT_SETUP, 2, 1},
 119         {QLCNIC_CMD_DCB_QUERY_CAP, 1, 2},
 120         {QLCNIC_CMD_DCB_QUERY_PARAM, 1, 50},
 121         {QLCNIC_CMD_SET_INGRESS_ENCAP, 2, 1},
 122         {QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP, 4, 1},
 123 };
 124
 125 const u32 qlcnic_83xx_ext_reg_tbl[] = {
 126         0x38CC,         /* Global Reset */
 127         0x38F0,         /* Wildcard */
 128         0x38FC,         /* Informant */
 129         0x3038,         /* Host MBX ctrl */
 130         0x303C,         /* FW MBX ctrl */
 131         0x355C,         /* BOOT LOADER ADDRESS REG */
 132         0x3560,         /* BOOT LOADER SIZE REG */
 133         0x3564,         /* FW IMAGE ADDR REG */
 134         0x1000,         /* MBX intr enable */
 135         0x1200,         /* Default Intr mask */
 136         0x1204,         /* Default Interrupt ID */
 137         0x3780,         /* QLC_83XX_IDC_MAJ_VERSION */
 138         0x3784,         /* QLC_83XX_IDC_DEV_STATE */
 139         0x3788,         /* QLC_83XX_IDC_DRV_PRESENCE */
 140         0x378C,         /* QLC_83XX_IDC_DRV_ACK */
 141         0x3790,         /* QLC_83XX_IDC_CTRL */
 142         0x3794,         /* QLC_83XX_IDC_DRV_AUDIT */
 143         0x3798,         /* QLC_83XX_IDC_MIN_VERSION */
 144         0x379C,         /* QLC_83XX_RECOVER_DRV_LOCK */
 145         0x37A0,         /* QLC_83XX_IDC_PF_0 */
 146         0x37A4,         /* QLC_83XX_IDC_PF_1 */
 147         0x37A8,         /* QLC_83XX_IDC_PF_2 */
 148         0x37AC,         /* QLC_83XX_IDC_PF_3 */
 149         0x37B0,         /* QLC_83XX_IDC_PF_4 */
 150         0x37B4,         /* QLC_83XX_IDC_PF_5 */
 151         0x37B8,         /* QLC_83XX_IDC_PF_6 */
 152         0x37BC,         /* QLC_83XX_IDC_PF_7 */
 153         0x37C0,         /* QLC_83XX_IDC_PF_8 */
 154         0x37C4,         /* QLC_83XX_IDC_PF_9 */
 155         0x37C8,         /* QLC_83XX_IDC_PF_10 */
 156         0x37CC,         /* QLC_83XX_IDC_PF_11 */
 157         0x37D0,         /* QLC_83XX_IDC_PF_12 */
 158         0x37D4,         /* QLC_83XX_IDC_PF_13 */
 159         0x37D8,         /* QLC_83XX_IDC_PF_14 */
 160         0x37DC,         /* QLC_83XX_IDC_PF_15 */
 161         0x37E0,         /* QLC_83XX_IDC_DEV_PARTITION_INFO_1 */
 162         0x37E4,         /* QLC_83XX_IDC_DEV_PARTITION_INFO_2 */
 163         0x37F0,         /* QLC_83XX_DRV_OP_MODE */
 164         0x37F4,         /* QLC_83XX_VNIC_STATE */
 165         0x3868,         /* QLC_83XX_DRV_LOCK */
 166         0x386C,         /* QLC_83XX_DRV_UNLOCK */
 167         0x3504,         /* QLC_83XX_DRV_LOCK_ID */
 168         0x34A4,         /* QLC_83XX_ASIC_TEMP */
 169 };
 170
 171 const u32 qlcnic_83xx_reg_tbl[] = {
 172         0x34A8,         /* PEG_HALT_STAT1 */
 173         0x34AC,         /* PEG_HALT_STAT2 */
 174         0x34B0,         /* FW_HEARTBEAT */
 175         0x3500,         /* FLASH LOCK_ID */
 176         0x3528,         /* FW_CAPABILITIES */
 177         0x3538,         /* Driver active, DRV_REG0 */
 178         0x3540,         /* Device state, DRV_REG1 */
 179         0x3544,         /* Driver state, DRV_REG2 */
 180         0x3548,         /* Driver scratch, DRV_REG3 */
 181         0x354C,         /* Device partition info, DRV_REG4 */
 182         0x3524,         /* Driver IDC ver, DRV_REG5 */
 183         0x3550,         /* FW_VER_MAJOR */
 184         0x3554,         /* FW_VER_MINOR */
 185         0x3558,         /* FW_VER_SUB */
 186         0x359C,         /* NPAR STATE */
 187         0x35FC,         /* FW_IMG_VALID */
 188         0x3650,         /* CMD_PEG_STATE */
 189         0x373C,         /* RCV_PEG_STATE */
 190         0x37B4,         /* ASIC TEMP */
 191         0x356C,         /* FW API */
 192         0x3570,         /* DRV OP MODE */
 193         0x3850,         /* FLASH LOCK */
 194         0x3854,         /* FLASH UNLOCK */
 195 };
 196
 197 static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
 198         .read_crb                       = qlcnic_83xx_read_crb,
 199         .write_crb                      = qlcnic_83xx_write_crb,
 200         .read_reg                       = qlcnic_83xx_rd_reg_indirect,
 201         .write_reg                      = qlcnic_83xx_wrt_reg_indirect,
 202         .get_mac_address                = qlcnic_83xx_get_mac_address,
 203         .setup_intr                     = qlcnic_83xx_setup_intr,
 204         .alloc_mbx_args                 = qlcnic_83xx_alloc_mbx_args,
 205         .mbx_cmd                        = qlcnic_83xx_issue_cmd,
 206         .get_func_no                    = qlcnic_83xx_get_func_no,
 207         .api_lock                       = qlcnic_83xx_cam_lock,
 208         .api_unlock                     = qlcnic_83xx_cam_unlock,
 209         .add_sysfs                      = qlcnic_83xx_add_sysfs,
 210         .remove_sysfs                   = qlcnic_83xx_remove_sysfs,
 211         .process_lb_rcv_ring_diag       = qlcnic_83xx_process_rcv_ring_diag,
 212         .create_rx_ctx                  = qlcnic_83xx_create_rx_ctx,
 213         .create_tx_ctx                  = qlcnic_83xx_create_tx_ctx,
 214         .del_rx_ctx                     = qlcnic_83xx_del_rx_ctx,
 215         .del_tx_ctx                     = qlcnic_83xx_del_tx_ctx,
 216         .setup_link_event               = qlcnic_83xx_setup_link_event,
 217         .get_nic_info                   = qlcnic_83xx_get_nic_info,
 218         .get_pci_info                   = qlcnic_83xx_get_pci_info,
 219         .set_nic_info                   = qlcnic_83xx_set_nic_info,
 220         .change_macvlan                 = qlcnic_83xx_sre_macaddr_change,
 221         .napi_enable                    = qlcnic_83xx_napi_enable,
 222         .napi_disable                   = qlcnic_83xx_napi_disable,
 223         .config_intr_coal               = qlcnic_83xx_config_intr_coal,
 224         .config_rss                     = qlcnic_83xx_config_rss,
 225         .config_hw_lro                  = qlcnic_83xx_config_hw_lro,
 226         .config_promisc_mode            = qlcnic_83xx_nic_set_promisc,
 227         .change_l2_filter               = qlcnic_83xx_change_l2_filter,
 228         .get_board_info                 = qlcnic_83xx_get_port_info,
 229         .set_mac_filter_count           = qlcnic_83xx_set_mac_filter_count,
 230         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 231         .io_error_detected              = qlcnic_83xx_io_error_detected,
 232         .io_slot_reset                  = qlcnic_83xx_io_slot_reset,
 233         .io_resume                      = qlcnic_83xx_io_resume,
 234         .get_beacon_state               = qlcnic_83xx_get_beacon_state,
 235         .enable_sds_intr                = qlcnic_83xx_enable_sds_intr,
 236         .disable_sds_intr               = qlcnic_83xx_disable_sds_intr,
 237         .enable_tx_intr                 = qlcnic_83xx_enable_tx_intr,
 238         .disable_tx_intr                = qlcnic_83xx_disable_tx_intr,
 239         .get_saved_state                = qlcnic_83xx_get_saved_state,
 240         .set_saved_state                = qlcnic_83xx_set_saved_state,
 241         .cache_tmpl_hdr_values          = qlcnic_83xx_cache_tmpl_hdr_values,
 242         .get_cap_size                   = qlcnic_83xx_get_cap_size,
 243         .set_sys_info                   = qlcnic_83xx_set_sys_info,
 244         .store_cap_mask                 = qlcnic_83xx_store_cap_mask,
 245 };
 246
 247 static struct qlcnic_nic_template qlcnic_83xx_ops = {
 248         .config_bridged_mode    = qlcnic_config_bridged_mode,
 249         .config_led             = qlcnic_config_led,
 250         .request_reset          = qlcnic_83xx_idc_request_reset,
 251         .cancel_idc_work        = qlcnic_83xx_idc_exit,
 252         .napi_add               = qlcnic_83xx_napi_add,
 253         .napi_del               = qlcnic_83xx_napi_del,
 254         .config_ipaddr          = qlcnic_83xx_config_ipaddr,
 255         .clear_legacy_intr      = qlcnic_83xx_clear_legacy_intr,
 256         .shutdown               = qlcnic_83xx_shutdown,
 257         .resume                 = qlcnic_83xx_resume,
 258 };
 259
 260 void qlcnic_83xx_register_map(struct qlcnic_hardware_context *ahw)
 261 {
 262         ahw->hw_ops             = &qlcnic_83xx_hw_ops;
 263         ahw->reg_tbl            = (u32 *)qlcnic_83xx_reg_tbl;
 264         ahw->ext_reg_tbl        = (u32 *)qlcnic_83xx_ext_reg_tbl;
 265 }
 266
 267 int qlcnic_83xx_get_fw_version(struct qlcnic_adapter *adapter)
 268 {
 269         u32 fw_major, fw_minor, fw_build;
 270         struct pci_dev *pdev = adapter->pdev;
 271
 272         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 273         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 274         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 275         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 276
 277         dev_info(&pdev->dev, "Driver v%s, firmware version %d.%d.%d\n",
 278                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 279
 280         return adapter->fw_version;
 281 }
 282
 283 static int __qlcnic_set_win_base(struct qlcnic_adapter *adapter, u32 addr)
 284 {
 285         void __iomem *base;
 286         u32 val;
 287
 288         base = adapter->ahw->pci_base0 +
 289                QLC_83XX_CRB_WIN_FUNC(adapter->ahw->pci_func);
 290         writel(addr, base);
 291         val = readl(base);
 292         if (val != addr)
 293                 return -EIO;
 294
 295         return 0;
 296 }
 297
 298 int qlcnic_83xx_rd_reg_indirect(struct qlcnic_adapter *adapter, ulong addr,
 299                                 int *err)
 300 {
 301         struct qlcnic_hardware_context *ahw = adapter->ahw;
 302
 303         *err = __qlcnic_set_win_base(adapter, (u32) addr);
 304         if (!*err) {
 305                 return QLCRDX(ahw, QLCNIC_WILDCARD);
 306         } else {
 307                 dev_err(&adapter->pdev->dev,
 308                         "%s failed, addr = 0x%lx\n", __func__, addr);
 309                 return -EIO;
 310         }
 311 }
 312
 313 int qlcnic_83xx_wrt_reg_indirect(struct qlcnic_adapter *adapter, ulong addr,
 314                                  u32 data)
 315 {
 316         int err;
 317         struct qlcnic_hardware_context *ahw = adapter->ahw;
 318
 319         err = __qlcnic_set_win_base(adapter, (u32) addr);
 320         if (!err) {
 321                 QLCWRX(ahw, QLCNIC_WILDCARD, data);
 322                 return 0;
 323         } else {
 324                 dev_err(&adapter->pdev->dev,
 325                         "%s failed, addr = 0x%x data = 0x%x\n",
 326                         __func__, (int)addr, data);
 327                 return err;
 328         }
 329 }
 330
 331 static void qlcnic_83xx_enable_legacy(struct qlcnic_adapter *adapter)
 332 {
 333         struct qlcnic_hardware_context *ahw = adapter->ahw;
 334
 335         /* MSI-X enablement failed, use legacy interrupt */
 336         adapter->tgt_status_reg = ahw->pci_base0 + QLC_83XX_INTX_PTR;
 337         adapter->tgt_mask_reg = ahw->pci_base0 + QLC_83XX_INTX_MASK;
 338         adapter->isr_int_vec = ahw->pci_base0 + QLC_83XX_INTX_TRGR;
 339         adapter->msix_entries[0].vector = adapter->pdev->irq;
 340         dev_info(&adapter->pdev->dev, "using legacy interrupt\n");
 341 }
 342
 343 static int qlcnic_83xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 344 {
 345         int num_msix;
 346
 347         num_msix = adapter->drv_sds_rings;
 348
 349         /* account for AEN interrupt MSI-X based interrupts */
 350         num_msix += 1;
 351
 352         if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
 353                 num_msix += adapter->drv_tx_rings;
 354
 355         return num_msix;
 356 }
 357
 358 int qlcnic_83xx_setup_intr(struct qlcnic_adapter *adapter)
 359 {
 360         struct qlcnic_hardware_context *ahw = adapter->ahw;
 361         int err, i, num_msix;
 362
 363         if (adapter->flags & QLCNIC_TSS_RSS) {
 364                 err = qlcnic_setup_tss_rss_intr(adapter);
 365                 if (err < 0)
 366                         return err;
 367                 num_msix = ahw->num_msix;
 368         } else {
 369                 num_msix = qlcnic_83xx_calculate_msix_vector(adapter);
 370
 371                 err = qlcnic_enable_msix(adapter, num_msix);
 372                 if (err == -ENOMEM)
 373                         return err;
 374
 375                 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 376                         num_msix = ahw->num_msix;
 377                 } else {
 378                         if (qlcnic_sriov_vf_check(adapter))
 379                                 return -EINVAL;
 380                         num_msix = 1;
 381                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 382                         adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 383                 }
 384         }
 385
 386         /* setup interrupt mapping table for fw */
 387         ahw->intr_tbl = vzalloc(num_msix *
 388                                 sizeof(struct qlcnic_intrpt_config));
 389         if (!ahw->intr_tbl)
 390                 return -ENOMEM;
 391
 392         if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 393                 if (adapter->ahw->pci_func >= QLC_MAX_LEGACY_FUNC_SUPP) {
 394                         dev_err(&adapter->pdev->dev, "PCI function number 8 and higher are not supported with legacy interrupt, func 0x%x\n",
 395                                 ahw->pci_func);
 396                         return -EOPNOTSUPP;
 397                 }
 398
 399                 qlcnic_83xx_enable_legacy(adapter);
 400         }
 401
 402         for (i = 0; i < num_msix; i++) {
 403                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
 404                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 405                 else
 406                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_INTX;
 407                 ahw->intr_tbl[i].id = i;
 408                 ahw->intr_tbl[i].src = 0;
 409         }
 410
 411         return 0;
 412 }
 413
 414 static inline void qlcnic_83xx_clear_legacy_intr_mask(struct qlcnic_adapter *adapter)
 415 {
 416         writel(0, adapter->tgt_mask_reg);
 417 }
 418
 419 static inline void qlcnic_83xx_set_legacy_intr_mask(struct qlcnic_adapter *adapter)
 420 {
 421         if (adapter->tgt_mask_reg)
 422                 writel(1, adapter->tgt_mask_reg);
 423 }
 424
 425 static inline void qlcnic_83xx_enable_legacy_msix_mbx_intr(struct qlcnic_adapter
 426                                                     *adapter)
 427 {
 428         u32 mask;
 429
 430         /* Mailbox in MSI-x mode and Legacy Interrupt share the same
 431          * source register. We could be here before contexts are created
 432          * and sds_ring->crb_intr_mask has not been initialized, calculate
 433          * BAR offset for Interrupt Source Register
 434          */
 435         mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
 436         writel(0, adapter->ahw->pci_base0 + mask);
 437 }
 438
 439 void qlcnic_83xx_disable_mbx_intr(struct qlcnic_adapter *adapter)
 440 {
 441         u32 mask;
 442
 443         mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
 444         writel(1, adapter->ahw->pci_base0 + mask);
 445         QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, 0);
 446 }
 447
 448 static inline void qlcnic_83xx_get_mbx_data(struct qlcnic_adapter *adapter,
 449                                      struct qlcnic_cmd_args *cmd)
 450 {
 451         int i;
 452
 453         if (cmd->op_type == QLC_83XX_MBX_POST_BC_OP)
 454                 return;
 455
 456         for (i = 0; i < cmd->rsp.num; i++)
 457                 cmd->rsp.arg[i] = readl(QLCNIC_MBX_FW(adapter->ahw, i));
 458 }
 459
 460 irqreturn_t qlcnic_83xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
 461 {
 462         u32 intr_val;
 463         struct qlcnic_hardware_context *ahw = adapter->ahw;
 464         int retries = 0;
 465
 466         intr_val = readl(adapter->tgt_status_reg);
 467
 468         if (!QLC_83XX_VALID_INTX_BIT31(intr_val))
 469                 return IRQ_NONE;
 470
 471         if (QLC_83XX_INTX_FUNC(intr_val) != adapter->ahw->pci_func) {
 472                 adapter->stats.spurious_intr++;
 473                 return IRQ_NONE;
 474         }
 475         /* The barrier is required to ensure writes to the registers */
 476         wmb();
 477
 478         /* clear the interrupt trigger control register */
 479         writel(0, adapter->isr_int_vec);
 480         intr_val = readl(adapter->isr_int_vec);
 481         do {
 482                 intr_val = readl(adapter->tgt_status_reg);
 483                 if (QLC_83XX_INTX_FUNC(intr_val) != ahw->pci_func)
 484                         break;
 485                 retries++;
 486         } while (QLC_83XX_VALID_INTX_BIT30(intr_val) &&
 487                  (retries < QLC_83XX_LEGACY_INTX_MAX_RETRY));
 488
 489         return IRQ_HANDLED;
 490 }
 491
 492 static inline void qlcnic_83xx_notify_mbx_response(struct qlcnic_mailbox *mbx)
 493 {
 494         mbx->rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
 495         complete(&mbx->completion);
 496 }
 497
 498 static void qlcnic_83xx_poll_process_aen(struct qlcnic_adapter *adapter)
 499 {
 500         u32 resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
 501         struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
 502         unsigned long flags;
 503
 504         spin_lock_irqsave(&mbx->aen_lock, flags);
 505         resp = QLCRDX(adapter->ahw, QLCNIC_FW_MBX_CTRL);
 506         if (!(resp & QLCNIC_SET_OWNER))
 507                 goto out;
 508
 509         event = readl(QLCNIC_MBX_FW(adapter->ahw, 0));
 510         if (event &  QLCNIC_MBX_ASYNC_EVENT) {
 511                 __qlcnic_83xx_process_aen(adapter);
 512         } else {
 513                 if (mbx->rsp_status != rsp_status)
 514                         qlcnic_83xx_notify_mbx_response(mbx);
 515         }
 516 out:
 517         qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 518         spin_unlock_irqrestore(&mbx->aen_lock, flags);
 519 }
 520
 521 irqreturn_t qlcnic_83xx_intr(int irq, void *data)
 522 {
 523         struct qlcnic_adapter *adapter = data;
 524         struct qlcnic_host_sds_ring *sds_ring;
 525         struct qlcnic_hardware_context *ahw = adapter->ahw;
 526
 527         if (qlcnic_83xx_clear_legacy_intr(adapter) == IRQ_NONE)
 528                 return IRQ_NONE;
 529
 530         qlcnic_83xx_poll_process_aen(adapter);
 531
 532         if (ahw->diag_test) {
 533                 if (ahw->diag_test == QLCNIC_INTERRUPT_TEST)
 534                         ahw->diag_cnt++;
 535                 qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 536                 return IRQ_HANDLED;
 537         }
 538
 539         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 540                 qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 541         } else {
 542                 sds_ring = &adapter->recv_ctx->sds_rings[0];
 543                 napi_schedule(&sds_ring->napi);
 544         }
 545
 546         return IRQ_HANDLED;
 547 }
 548
 549 irqreturn_t qlcnic_83xx_tmp_intr(int irq, void *data)
 550 {
 551         struct qlcnic_host_sds_ring *sds_ring = data;
 552         struct qlcnic_adapter *adapter = sds_ring->adapter;
 553
 554         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 555                 goto done;
 556
 557         if (adapter->nic_ops->clear_legacy_intr(adapter) == IRQ_NONE)
 558                 return IRQ_NONE;
 559
 560 done:
 561         adapter->ahw->diag_cnt++;
 562         qlcnic_enable_sds_intr(adapter, sds_ring);
 563
 564         return IRQ_HANDLED;
 565 }
 566
 567 void qlcnic_83xx_free_mbx_intr(struct qlcnic_adapter *adapter)
 568 {
 569         u32 num_msix;
 570
 571         if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
 572                 qlcnic_83xx_set_legacy_intr_mask(adapter);
 573
 574         qlcnic_83xx_disable_mbx_intr(adapter);
 575
 576         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 577                 num_msix = adapter->ahw->num_msix - 1;
 578         else
 579                 num_msix = 0;
 580
 581         msleep(20);
 582
 583         if (adapter->msix_entries) {
 584                 synchronize_irq(adapter->msix_entries[num_msix].vector);
 585                 free_irq(adapter->msix_entries[num_msix].vector, adapter);
 586         }
 587 }
 588
 589 int qlcnic_83xx_setup_mbx_intr(struct qlcnic_adapter *adapter)
 590 {
 591         irq_handler_t handler;
 592         u32 val;
 593         int err = 0;
 594         unsigned long flags = 0;
 595
 596         if (!(adapter->flags & QLCNIC_MSI_ENABLED) &&
 597             !(adapter->flags & QLCNIC_MSIX_ENABLED))
 598                 flags |= IRQF_SHARED;
 599
 600         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 601                 handler = qlcnic_83xx_handle_aen;
 602                 val = adapter->msix_entries[adapter->ahw->num_msix - 1].vector;
 603                 err = request_irq(val, handler, flags, "qlcnic-MB", adapter);
 604                 if (err) {
 605                         dev_err(&adapter->pdev->dev,
 606                                 "failed to register MBX interrupt\n");
 607                         return err;
 608                 }
 609         } else {
 610                 handler = qlcnic_83xx_intr;
 611                 val = adapter->msix_entries[0].vector;
 612                 err = request_irq(val, handler, flags, "qlcnic", adapter);
 613                 if (err) {
 614                         dev_err(&adapter->pdev->dev,
 615                                 "failed to register INTx interrupt\n");
 616                         return err;
 617                 }
 618                 qlcnic_83xx_clear_legacy_intr_mask(adapter);
 619         }
 620
 621         /* Enable mailbox interrupt */
 622         qlcnic_83xx_enable_mbx_interrupt(adapter);
 623
 624         return err;
 625 }
 626
 627 void qlcnic_83xx_get_func_no(struct qlcnic_adapter *adapter)
 628 {
 629         u32 val = QLCRDX(adapter->ahw, QLCNIC_INFORMANT);
 630         adapter->ahw->pci_func = (val >> 24) & 0xff;
 631 }
 632
 633 int qlcnic_83xx_cam_lock(struct qlcnic_adapter *adapter)
 634 {
 635         void __iomem *addr;
 636         u32 val, limit = 0;
 637
 638         struct qlcnic_hardware_context *ahw = adapter->ahw;
 639
 640         addr = ahw->pci_base0 + QLC_83XX_SEM_LOCK_FUNC(ahw->pci_func);
 641         do {
 642                 val = readl(addr);
 643                 if (val) {
 644                         /* write the function number to register */
 645                         QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER,
 646                                             ahw->pci_func);
 647                         return 0;
 648                 }
 649                 usleep_range(1000, 2000);
 650         } while (++limit <= QLCNIC_PCIE_SEM_TIMEOUT);
 651
 652         return -EIO;
 653 }
 654
 655 void qlcnic_83xx_cam_unlock(struct qlcnic_adapter *adapter)
 656 {
 657         void __iomem *addr;
 658         u32 val;
 659         struct qlcnic_hardware_context *ahw = adapter->ahw;
 660
 661         addr = ahw->pci_base0 + QLC_83XX_SEM_UNLOCK_FUNC(ahw->pci_func);
 662         val = readl(addr);
 663 }
 664
 665 void qlcnic_83xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
 666                           loff_t offset, size_t size)
 667 {
 668         int ret = 0;
 669         u32 data;
 670
 671         if (qlcnic_api_lock(adapter)) {
 672                 dev_err(&adapter->pdev->dev,
 673                         "%s: failed to acquire lock. addr offset 0x%x\n",
 674                         __func__, (u32)offset);
 675                 return;
 676         }
 677
 678         data = QLCRD32(adapter, (u32) offset, &ret);
 679         qlcnic_api_unlock(adapter);
 680
 681         if (ret == -EIO) {
 682                 dev_err(&adapter->pdev->dev,
 683                         "%s: failed. addr offset 0x%x\n",
 684                         __func__, (u32)offset);
 685                 return;
 686         }
 687         memcpy(buf, &data, size);
 688 }
 689
 690 void qlcnic_83xx_write_crb(struct qlcnic_adapter *adapter, char *buf,
 691                            loff_t offset, size_t size)
 692 {
 693         u32 data;
 694
 695         memcpy(&data, buf, size);
 696         qlcnic_83xx_wrt_reg_indirect(adapter, (u32) offset, data);
 697 }
 698
 699 int qlcnic_83xx_get_port_info(struct qlcnic_adapter *adapter)
 700 {
 701         struct qlcnic_hardware_context *ahw = adapter->ahw;
 702         int status;
 703
 704         status = qlcnic_83xx_get_port_config(adapter);
 705         if (status) {
 706                 dev_err(&adapter->pdev->dev,
 707                         "Get Port Info failed\n");
 708         } else {
 709
 710                 if (ahw->port_config & QLC_83XX_10G_CAPABLE) {
 711                         ahw->port_type = QLCNIC_XGBE;
 712                 } else if (ahw->port_config & QLC_83XX_10_CAPABLE ||
 713                            ahw->port_config & QLC_83XX_100_CAPABLE ||
 714                            ahw->port_config & QLC_83XX_1G_CAPABLE) {
 715                         ahw->port_type = QLCNIC_GBE;
 716                 } else {
 717                         ahw->port_type = QLCNIC_XGBE;
 718                 }
 719
 720                 if (QLC_83XX_AUTONEG(ahw->port_config))
 721                         ahw->link_autoneg = AUTONEG_ENABLE;
 722
 723         }
 724         return status;
 725 }
 726
 727 static void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
 728 {
 729         struct qlcnic_hardware_context *ahw = adapter->ahw;
 730         u16 act_pci_fn = ahw->total_nic_func;
 731         u16 count;
 732
 733         ahw->max_mc_count = QLC_83XX_MAX_MC_COUNT;
 734         if (act_pci_fn <= 2)
 735                 count = (QLC_83XX_MAX_UC_COUNT - QLC_83XX_MAX_MC_COUNT) /
 736                          act_pci_fn;
 737         else
 738                 count = (QLC_83XX_LB_MAX_FILTERS - QLC_83XX_MAX_MC_COUNT) /
 739                          act_pci_fn;
 740         ahw->max_uc_count = count;
 741 }
 742
 743 void qlcnic_83xx_enable_mbx_interrupt(struct qlcnic_adapter *adapter)
 744 {
 745         u32 val;
 746
 747         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 748                 val = BIT_2 | ((adapter->ahw->num_msix - 1) << 8);
 749         else
 750                 val = BIT_2;
 751
 752         QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, val);
 753         qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 754 }
 755
 756 void qlcnic_83xx_check_vf(struct qlcnic_adapter *adapter,
 757                           const struct pci_device_id *ent)
 758 {
 759         u32 op_mode, priv_level;
 760         struct qlcnic_hardware_context *ahw = adapter->ahw;
 761
 762         ahw->fw_hal_version = 2;
 763         qlcnic_get_func_no(adapter);
 764
 765         if (qlcnic_sriov_vf_check(adapter)) {
 766                 qlcnic_sriov_vf_set_ops(adapter);
 767                 return;
 768         }
 769
 770         /* Determine function privilege level */
 771         op_mode = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
 772         if (op_mode == QLC_83XX_DEFAULT_OPMODE)
 773                 priv_level = QLCNIC_MGMT_FUNC;
 774         else
 775                 priv_level = QLC_83XX_GET_FUNC_PRIVILEGE(op_mode,
 776                                                          ahw->pci_func);
 777
 778         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 779                 ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 780                 dev_info(&adapter->pdev->dev,
 781                          "HAL Version: %d Non Privileged function\n",
 782                          ahw->fw_hal_version);
 783                 adapter->nic_ops = &qlcnic_vf_ops;
 784         } else {
 785                 if (pci_find_ext_capability(adapter->pdev,
 786                                             PCI_EXT_CAP_ID_SRIOV))
 787                         set_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state);
 788                 adapter->nic_ops = &qlcnic_83xx_ops;
 789         }
 790 }
 791
 792 static void qlcnic_83xx_handle_link_aen(struct qlcnic_adapter *adapter,
 793                                         u32 data[]);
 794 static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter,
 795                                             u32 data[]);
 796
 797 void qlcnic_dump_mbx(struct qlcnic_adapter *adapter,
 798                      struct qlcnic_cmd_args *cmd)
 799 {
 800         int i;
 801
 802         if (cmd->op_type == QLC_83XX_MBX_POST_BC_OP)
 803                 return;
 804
 805         dev_info(&adapter->pdev->dev,
 806                  "Host MBX regs(%d)\n", cmd->req.num);
 807         for (i = 0; i < cmd->req.num; i++) {
 808                 if (i && !(i % 8))
 809                         pr_info("\n");
 810                 pr_info("%08x ", cmd->req.arg[i]);
 811         }
 812         pr_info("\n");
 813         dev_info(&adapter->pdev->dev,
 814                  "FW MBX regs(%d)\n", cmd->rsp.num);
 815         for (i = 0; i < cmd->rsp.num; i++) {
 816                 if (i && !(i % 8))
 817                         pr_info("\n");
 818                 pr_info("%08x ", cmd->rsp.arg[i]);
 819         }
 820         pr_info("\n");
 821 }
 822
 823 static void qlcnic_83xx_poll_for_mbx_completion(struct qlcnic_adapter *adapter,
 824                                                 struct qlcnic_cmd_args *cmd)
 825 {
 826         struct qlcnic_hardware_context *ahw = adapter->ahw;
 827         int opcode = LSW(cmd->req.arg[0]);
 828         unsigned long max_loops;
 829
 830         max_loops = cmd->total_cmds * QLC_83XX_MBX_CMD_LOOP;
 831
 832         for (; max_loops; max_loops--) {
 833                 if (atomic_read(&cmd->rsp_status) ==
 834                     QLC_83XX_MBX_RESPONSE_ARRIVED)
 835                         return;
 836
 837                 udelay(1);
 838         }
 839
 840         dev_err(&adapter->pdev->dev,
 841                 "%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 842                 __func__, opcode, cmd->type, ahw->pci_func, ahw->op_mode);
 843         flush_workqueue(ahw->mailbox->work_q);
 844         return;
 845 }
 846
 847 int qlcnic_83xx_issue_cmd(struct qlcnic_adapter *adapter,
 848                           struct qlcnic_cmd_args *cmd)
 849 {
 850         struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
 851         struct qlcnic_hardware_context *ahw = adapter->ahw;
 852         int cmd_type, err, opcode;
 853         unsigned long timeout;
 854
 855         if (!mbx)
 856                 return -EIO;
 857
 858         opcode = LSW(cmd->req.arg[0]);
 859         cmd_type = cmd->type;
 860         err = mbx->ops->enqueue_cmd(adapter, cmd, &timeout);
 861         if (err) {
 862                 dev_err(&adapter->pdev->dev,
 863                         "%s: Mailbox not available, cmd_op=0x%x, cmd_context=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 864                         __func__, opcode, cmd->type, ahw->pci_func,
 865                         ahw->op_mode);
 866                 return err;
 867         }
 868
 869         switch (cmd_type) {
 870         case QLC_83XX_MBX_CMD_WAIT:
 871                 if (!wait_for_completion_timeout(&cmd->completion, timeout)) {
 872                         dev_err(&adapter->pdev->dev,
 873                                 "%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 874                                 __func__, opcode, cmd_type, ahw->pci_func,
 875                                 ahw->op_mode);
 876                         flush_workqueue(mbx->work_q);
 877                 }
 878                 break;
 879         case QLC_83XX_MBX_CMD_NO_WAIT:
 880                 return 0;
 881         case QLC_83XX_MBX_CMD_BUSY_WAIT:
 882                 qlcnic_83xx_poll_for_mbx_completion(adapter, cmd);
 883                 break;
 884         default:
 885                 dev_err(&adapter->pdev->dev,
 886                         "%s: Invalid mailbox command, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 887                         __func__, opcode, cmd_type, ahw->pci_func,
 888                         ahw->op_mode);
 889                 qlcnic_83xx_detach_mailbox_work(adapter);
 890         }
 891
 892         return cmd->rsp_opcode;
 893 }
 894
 895 int qlcnic_83xx_alloc_mbx_args(struct qlcnic_cmd_args *mbx,
 896                                struct qlcnic_adapter *adapter, u32 type)
 897 {
 898         int i, size;
 899         u32 temp;
 900         const struct qlcnic_mailbox_metadata *mbx_tbl;
 901
 902         memset(mbx, 0, sizeof(struct qlcnic_cmd_args));
 903         mbx_tbl = qlcnic_83xx_mbx_tbl;
 904         size = ARRAY_SIZE(qlcnic_83xx_mbx_tbl);
 905         for (i = 0; i < size; i++) {
 906                 if (type == mbx_tbl[i].cmd) {
 907                         mbx->op_type = QLC_83XX_FW_MBX_CMD;
 908                         mbx->req.num = mbx_tbl[i].in_args;
 909                         mbx->rsp.num = mbx_tbl[i].out_args;
 910                         mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32),
 911                                                GFP_ATOMIC);
 912                         if (!mbx->req.arg)
 913                                 return -ENOMEM;
 914                         mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32),
 915                                                GFP_ATOMIC);
 916                         if (!mbx->rsp.arg) {
 917                                 kfree(mbx->req.arg);
 918                                 mbx->req.arg = NULL;
 919                                 return -ENOMEM;
 920                         }
 921                         temp = adapter->ahw->fw_hal_version << 29;
 922                         mbx->req.arg[0] = (type | (mbx->req.num << 16) | temp);
 923                         mbx->cmd_op = type;
 924                         return 0;
 925                 }
 926         }
 927
 928         dev_err(&adapter->pdev->dev, "%s: Invalid mailbox command opcode 0x%x\n",
 929                 __func__, type);
 930         return -EINVAL;
 931 }
 932
 933 void qlcnic_83xx_idc_aen_work(struct work_struct *work)
 934 {
 935         struct qlcnic_adapter *adapter;
 936         struct qlcnic_cmd_args cmd;
 937         int i, err = 0;
 938
 939         adapter = container_of(work, struct qlcnic_adapter, idc_aen_work.work);
 940         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_IDC_ACK);
 941         if (err)
 942                 return;
 943
 944         for (i = 1; i < QLC_83XX_MBX_AEN_CNT; i++)
 945                 cmd.req.arg[i] = adapter->ahw->mbox_aen[i];
 946
 947         err = qlcnic_issue_cmd(adapter, &cmd);
 948         if (err)
 949                 dev_info(&adapter->pdev->dev,
 950                          "%s: Mailbox IDC ACK failed.\n", __func__);
 951         qlcnic_free_mbx_args(&cmd);
 952 }
 953
 954 static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter,
 955                                             u32 data[])
 956 {
 957         dev_dbg(&adapter->pdev->dev, "Completion AEN:0x%x.\n",
 958                 QLCNIC_MBX_RSP(data[0]));
 959         clear_bit(QLC_83XX_IDC_COMP_AEN, &adapter->ahw->idc.status);
 960         return;
 961 }
 962
 963 static void __qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter)
 964 {
 965         struct qlcnic_hardware_context *ahw = adapter->ahw;
 966         u32 event[QLC_83XX_MBX_AEN_CNT];
 967         int i;
 968
 969         for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++)
 970                 event[i] = readl(QLCNIC_MBX_FW(ahw, i));
 971
 972         switch (QLCNIC_MBX_RSP(event[0])) {
 973
 974         case QLCNIC_MBX_LINK_EVENT:
 975                 qlcnic_83xx_handle_link_aen(adapter, event);
 976                 break;
 977         case QLCNIC_MBX_COMP_EVENT:
 978                 qlcnic_83xx_handle_idc_comp_aen(adapter, event);
 979                 break;
 980         case QLCNIC_MBX_REQUEST_EVENT:
 981                 for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++)
 982                         adapter->ahw->mbox_aen[i] = QLCNIC_MBX_RSP(event[i]);
 983                 queue_delayed_work(adapter->qlcnic_wq,
 984                                    &adapter->idc_aen_work, 0);
 985                 break;
 986         case QLCNIC_MBX_TIME_EXTEND_EVENT:
 987                 ahw->extend_lb_time = event[1] >> 8 & 0xf;
 988                 break;
 989         case QLCNIC_MBX_BC_EVENT:
 990                 qlcnic_sriov_handle_bc_event(adapter, event[1]);
 991                 break;
 992         case QLCNIC_MBX_SFP_INSERT_EVENT:
 993                 dev_info(&adapter->pdev->dev, "SFP+ Insert AEN:0x%x.\n",
 994                          QLCNIC_MBX_RSP(event[0]));
 995                 break;
 996         case QLCNIC_MBX_SFP_REMOVE_EVENT:
 997                 dev_info(&adapter->pdev->dev, "SFP Removed AEN:0x%x.\n",
 998                          QLCNIC_MBX_RSP(event[0]));
 999                 break;
1000         case QLCNIC_MBX_DCBX_CONFIG_CHANGE_EVENT:
1001                 qlcnic_dcb_aen_handler(adapter->dcb, (void *)&event[1]);
1002                 break;
1003         default:
1004                 dev_dbg(&adapter->pdev->dev, "Unsupported AEN:0x%x.\n",
1005                         QLCNIC_MBX_RSP(event[0]));
1006                 break;
1007         }
1008
1009         QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER);
1010 }
1011
1012 static void qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter)
1013 {
1014         u32 resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
1015         struct qlcnic_hardware_context *ahw = adapter->ahw;
1016         struct qlcnic_mailbox *mbx = ahw->mailbox;
1017         unsigned long flags;
1018
1019         spin_lock_irqsave(&mbx->aen_lock, flags);
1020         resp = QLCRDX(ahw, QLCNIC_FW_MBX_CTRL);
1021         if (resp & QLCNIC_SET_OWNER) {
1022                 event = readl(QLCNIC_MBX_FW(ahw, 0));
1023                 if (event &  QLCNIC_MBX_ASYNC_EVENT) {
1024                         __qlcnic_83xx_process_aen(adapter);
1025                 } else {
1026                         if (mbx->rsp_status != rsp_status)
1027                                 qlcnic_83xx_notify_mbx_response(mbx);
1028                 }
1029         }
1030         spin_unlock_irqrestore(&mbx->aen_lock, flags);
1031 }
1032
1033 static void qlcnic_83xx_mbx_poll_work(struct work_struct *work)
1034 {
1035         struct qlcnic_adapter *adapter;
1036
1037         adapter = container_of(work, struct qlcnic_adapter, mbx_poll_work.work);
1038
1039         if (!test_bit(__QLCNIC_MBX_POLL_ENABLE, &adapter->state))
1040                 return;
1041
1042         qlcnic_83xx_process_aen(adapter);
1043         queue_delayed_work(adapter->qlcnic_wq, &adapter->mbx_poll_work,
1044                            (HZ / 10));
1045 }
1046
1047 void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *adapter)
1048 {
1049         if (test_and_set_bit(__QLCNIC_MBX_POLL_ENABLE, &adapter->state))
1050                 return;
1051
1052         INIT_DELAYED_WORK(&adapter->mbx_poll_work, qlcnic_83xx_mbx_poll_work);
1053         queue_delayed_work(adapter->qlcnic_wq, &adapter->mbx_poll_work, 0);
1054 }
1055
1056 void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *adapter)
1057 {
1058         if (!test_and_clear_bit(__QLCNIC_MBX_POLL_ENABLE, &adapter->state))
1059                 return;
1060         cancel_delayed_work_sync(&adapter->mbx_poll_work);
1061 }
1062
1063 static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter)
1064 {
1065         int index, i, err, sds_mbx_size;
1066         u32 *buf, intrpt_id, intr_mask;
1067         u16 context_id;
1068         u8 num_sds;
1069         struct qlcnic_cmd_args cmd;
1070         struct qlcnic_host_sds_ring *sds;
1071         struct qlcnic_sds_mbx sds_mbx;
1072         struct qlcnic_add_rings_mbx_out *mbx_out;
1073         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1074         struct qlcnic_hardware_context *ahw = adapter->ahw;
1075
1076         sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
1077         context_id = recv_ctx->context_id;
1078         num_sds = adapter->drv_sds_rings - QLCNIC_MAX_SDS_RINGS;
1079         ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
1080                                     QLCNIC_CMD_ADD_RCV_RINGS);
1081         cmd.req.arg[1] = 0 | (num_sds << 8) | (context_id << 16);
1082
1083         /* set up status rings, mbx 2-81 */
1084         index = 2;
1085         for (i = 8; i < adapter->drv_sds_rings; i++) {
1086                 memset(&sds_mbx, 0, sds_mbx_size);
1087                 sds = &recv_ctx->sds_rings[i];
1088                 sds->consumer = 0;
1089                 memset(sds->desc_head, 0, STATUS_DESC_RINGSIZE(sds));
1090                 sds_mbx.phy_addr_low = LSD(sds->phys_addr);
1091                 sds_mbx.phy_addr_high = MSD(sds->phys_addr);
1092                 sds_mbx.sds_ring_size = sds->num_desc;
1093
1094                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1095                         intrpt_id = ahw->intr_tbl[i].id;
1096                 else
1097                         intrpt_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
1098
1099                 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
1100                         sds_mbx.intrpt_id = intrpt_id;
1101                 else
1102                         sds_mbx.intrpt_id = 0xffff;
1103                 sds_mbx.intrpt_val = 0;
1104                 buf = &cmd.req.arg[index];
1105                 memcpy(buf, &sds_mbx, sds_mbx_size);
1106                 index += sds_mbx_size / sizeof(u32);
1107         }
1108
1109         /* send the mailbox command */
1110         err = ahw->hw_ops->mbx_cmd(adapter, &cmd);
1111         if (err) {
1112                 dev_err(&adapter->pdev->dev,
1113                         "Failed to add rings %d\n", err);
1114                 goto out;
1115         }
1116
1117         mbx_out = (struct qlcnic_add_rings_mbx_out *)&cmd.rsp.arg[1];
1118         index = 0;
1119         /* status descriptor ring */
1120         for (i = 8; i < adapter->drv_sds_rings; i++) {
1121                 sds = &recv_ctx->sds_rings[i];
1122                 sds->crb_sts_consumer = ahw->pci_base0 +
1123                                         mbx_out->host_csmr[index];
1124                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1125                         intr_mask = ahw->intr_tbl[i].src;
1126                 else
1127                         intr_mask = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
1128
1129                 sds->crb_intr_mask = ahw->pci_base0 + intr_mask;
1130                 index++;
1131         }
1132 out:
1133         qlcnic_free_mbx_args(&cmd);
1134         return err;
1135 }
1136
1137 void qlcnic_83xx_del_rx_ctx(struct qlcnic_adapter *adapter)
1138 {
1139         int err;
1140         u32 temp = 0;
1141         struct qlcnic_cmd_args cmd;
1142         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1143
1144         if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_RX_CTX))
1145                 return;
1146
1147         if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1148                 cmd.req.arg[0] |= (0x3 << 29);
1149
1150         if (qlcnic_sriov_pf_check(adapter))
1151                 qlcnic_pf_set_interface_id_del_rx_ctx(adapter, &temp);
1152
1153         cmd.req.arg[1] = recv_ctx->context_id | temp;
1154         err = qlcnic_issue_cmd(adapter, &cmd);
1155         if (err)
1156                 dev_err(&adapter->pdev->dev,
1157                         "Failed to destroy rx ctx in firmware\n");
1158
1159         recv_ctx->state = QLCNIC_HOST_CTX_STATE_FREED;
1160         qlcnic_free_mbx_args(&cmd);
1161 }
1162
1163 int qlcnic_83xx_create_rx_ctx(struct qlcnic_adapter *adapter)
1164 {
1165         int i, err, index, sds_mbx_size, rds_mbx_size;
1166         u8 num_sds, num_rds;
1167         u32 *buf, intrpt_id, intr_mask, cap = 0;
1168         struct qlcnic_host_sds_ring *sds;
1169         struct qlcnic_host_rds_ring *rds;
1170         struct qlcnic_sds_mbx sds_mbx;
1171         struct qlcnic_rds_mbx rds_mbx;
1172         struct qlcnic_cmd_args cmd;
1173         struct qlcnic_rcv_mbx_out *mbx_out;
1174         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1175         struct qlcnic_hardware_context *ahw = adapter->ahw;
1176         num_rds = adapter->max_rds_rings;
1177
1178         if (adapter->drv_sds_rings <= QLCNIC_MAX_SDS_RINGS)
1179                 num_sds = adapter->drv_sds_rings;
1180         else
1181                 num_sds = QLCNIC_MAX_SDS_RINGS;
1182
1183         sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
1184         rds_mbx_size = sizeof(struct qlcnic_rds_mbx);
1185         cap = QLCNIC_CAP0_LEGACY_CONTEXT;
1186
1187         if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP)
1188                 cap |= QLC_83XX_FW_CAP_LRO_MSS;
1189
1190         /* set mailbox hdr and capabilities */
1191         err = qlcnic_alloc_mbx_args(&cmd, adapter,
1192                                     QLCNIC_CMD_CREATE_RX_CTX);
1193         if (err)
1194                 return err;
1195
1196         if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1197                 cmd.req.arg[0] |= (0x3 << 29);
1198
1199         cmd.req.arg[1] = cap;
1200         cmd.req.arg[5] = 1 | (num_rds << 5) | (num_sds << 8) |
1201                          (QLC_83XX_HOST_RDS_MODE_UNIQUE << 16);
1202
1203         if (qlcnic_sriov_pf_check(adapter))
1204                 qlcnic_pf_set_interface_id_create_rx_ctx(adapter,
1205                                                          &cmd.req.arg[6]);
1206         /* set up status rings, mbx 8-57/87 */
1207         index = QLC_83XX_HOST_SDS_MBX_IDX;
1208         for (i = 0; i < num_sds; i++) {
1209                 memset(&sds_mbx, 0, sds_mbx_size);
1210                 sds = &recv_ctx->sds_rings[i];
1211                 sds->consumer = 0;
1212                 memset(sds->desc_head, 0, STATUS_DESC_RINGSIZE(sds));
1213                 sds_mbx.phy_addr_low = LSD(sds->phys_addr);
1214                 sds_mbx.phy_addr_high = MSD(sds->phys_addr);
1215                 sds_mbx.sds_ring_size = sds->num_desc;
1216                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1217                         intrpt_id = ahw->intr_tbl[i].id;
1218                 else
1219                         intrpt_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
1220                 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
1221                         sds_mbx.intrpt_id = intrpt_id;
1222                 else
1223                         sds_mbx.intrpt_id = 0xffff;
1224                 sds_mbx.intrpt_val = 0;
1225                 buf = &cmd.req.arg[index];
1226                 memcpy(buf, &sds_mbx, sds_mbx_size);
1227                 index += sds_mbx_size / sizeof(u32);
1228         }
1229         /* set up receive rings, mbx 88-111/135 */
1230         index = QLCNIC_HOST_RDS_MBX_IDX;
1231         rds = &recv_ctx->rds_rings[0];
1232         rds->producer = 0;
1233         memset(&rds_mbx, 0, rds_mbx_size);
1234         rds_mbx.phy_addr_reg_low = LSD(rds->phys_addr);
1235         rds_mbx.phy_addr_reg_high = MSD(rds->phys_addr);
1236         rds_mbx.reg_ring_sz = rds->dma_size;
1237         rds_mbx.reg_ring_len = rds->num_desc;
1238         /* Jumbo ring */
1239         rds = &recv_ctx->rds_rings[1];
1240         rds->producer = 0;
1241         rds_mbx.phy_addr_jmb_low = LSD(rds->phys_addr);
1242         rds_mbx.phy_addr_jmb_high = MSD(rds->phys_addr);
1243         rds_mbx.jmb_ring_sz = rds->dma_size;
1244         rds_mbx.jmb_ring_len = rds->num_desc;
1245         buf = &cmd.req.arg[index];
1246         memcpy(buf, &rds_mbx, rds_mbx_size);
1247
1248         /* send the mailbox command */
1249         err = ahw->hw_ops->mbx_cmd(adapter, &cmd);
1250         if (err) {
1251                 dev_err(&adapter->pdev->dev,
1252                         "Failed to create Rx ctx in firmware%d\n", err);
1253                 goto out;
1254         }
1255         mbx_out = (struct qlcnic_rcv_mbx_out *)&cmd.rsp.arg[1];
1256         recv_ctx->context_id = mbx_out->ctx_id;
1257         recv_ctx->state = mbx_out->state;
1258         recv_ctx->virt_port = mbx_out->vport_id;
1259         dev_info(&adapter->pdev->dev, "Rx Context[%d] Created, state:0x%x\n",
1260                  recv_ctx->context_id, recv_ctx->state);
1261         /* Receive descriptor ring */
1262         /* Standard ring */
1263         rds = &recv_ctx->rds_rings[0];
1264         rds->crb_rcv_producer = ahw->pci_base0 +
1265                                 mbx_out->host_prod[0].reg_buf;
1266         /* Jumbo ring */
1267         rds = &recv_ctx->rds_rings[1];
1268         rds->crb_rcv_producer = ahw->pci_base0 +
1269                                 mbx_out->host_prod[0].jmb_buf;
1270         /* status descriptor ring */
1271         for (i = 0; i < num_sds; i++) {
1272                 sds = &recv_ctx->sds_rings[i];
1273                 sds->crb_sts_consumer = ahw->pci_base0 +
1274                                         mbx_out->host_csmr[i];
1275                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1276                         intr_mask = ahw->intr_tbl[i].src;
1277                 else
1278                         intr_mask = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
1279                 sds->crb_intr_mask = ahw->pci_base0 + intr_mask;
1280         }
1281
1282         if (adapter->drv_sds_rings > QLCNIC_MAX_SDS_RINGS)
1283                 err = qlcnic_83xx_add_rings(adapter);
1284 out:
1285         qlcnic_free_mbx_args(&cmd);
1286         return err;
1287 }
1288
1289 void qlcnic_83xx_del_tx_ctx(struct qlcnic_adapter *adapter,
1290                             struct qlcnic_host_tx_ring *tx_ring)
1291 {
1292         struct qlcnic_cmd_args cmd;
1293         u32 temp = 0;
1294
1295         if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_TX_CTX))
1296                 return;
1297
1298         if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1299                 cmd.req.arg[0] |= (0x3 << 29);
1300
1301         if (qlcnic_sriov_pf_check(adapter))
1302                 qlcnic_pf_set_interface_id_del_tx_ctx(adapter, &temp);
1303
1304         cmd.req.arg[1] = tx_ring->ctx_id | temp;
1305         if (qlcnic_issue_cmd(adapter, &cmd))
1306                 dev_err(&adapter->pdev->dev,
1307                         "Failed to destroy tx ctx in firmware\n");
1308         qlcnic_free_mbx_args(&cmd);
1309 }
1310
1311 int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *adapter,
1312                               struct qlcnic_host_tx_ring *tx, int ring)
1313 {
1314         int err;
1315         u16 msix_id;
1316         u32 *buf, intr_mask, temp = 0;
1317         struct qlcnic_cmd_args cmd;
1318         struct qlcnic_tx_mbx mbx;
1319         struct qlcnic_tx_mbx_out *mbx_out;
1320         struct qlcnic_hardware_context *ahw = adapter->ahw;
1321         u32 msix_vector;
1322
1323         /* Reset host resources */
1324         tx->producer = 0;
1325         tx->sw_consumer = 0;
1326         *(tx->hw_consumer) = 0;
1327
1328         memset(&mbx, 0, sizeof(struct qlcnic_tx_mbx));
1329
1330         /* setup mailbox inbox registerss */
1331         mbx.phys_addr_low = LSD(tx->phys_addr);
1332         mbx.phys_addr_high = MSD(tx->phys_addr);
1333         mbx.cnsmr_index_low = LSD(tx->hw_cons_phys_addr);
1334         mbx.cnsmr_index_high = MSD(tx->hw_cons_phys_addr);
1335         mbx.size = tx->num_desc;
1336         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1337                 if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
1338                         msix_vector = adapter->drv_sds_rings + ring;
1339                 else
1340                         msix_vector = adapter->drv_sds_rings - 1;
1341                 msix_id = ahw->intr_tbl[msix_vector].id;
1342         } else {
1343                 msix_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
1344         }
1345
1346         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
1347                 mbx.intr_id = msix_id;
1348         else
1349                 mbx.intr_id = 0xffff;
1350         mbx.src = 0;
1351
1352         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
1353         if (err)
1354                 return err;
1355
1356         if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1357                 cmd.req.arg[0] |= (0x3 << 29);
1358
1359         if (qlcnic_sriov_pf_check(adapter))
1360                 qlcnic_pf_set_interface_id_create_tx_ctx(adapter, &temp);
1361
1362         cmd.req.arg[1] = QLCNIC_CAP0_LEGACY_CONTEXT;
1363         cmd.req.arg[5] = QLCNIC_SINGLE_RING | temp;
1364
1365         buf = &cmd.req.arg[6];
1366         memcpy(buf, &mbx, sizeof(struct qlcnic_tx_mbx));
1367         /* send the mailbox command*/
1368         err = qlcnic_issue_cmd(adapter, &cmd);
1369         if (err) {
1370                 netdev_err(adapter->netdev,
1371                            "Failed to create Tx ctx in firmware 0x%x\n", err);
1372                 goto out;
1373         }
1374         mbx_out = (struct qlcnic_tx_mbx_out *)&cmd.rsp.arg[2];
1375         tx->crb_cmd_producer = ahw->pci_base0 + mbx_out->host_prod;
1376         tx->ctx_id = mbx_out->ctx_id;
1377         if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
1378             !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1379                 intr_mask = ahw->intr_tbl[adapter->drv_sds_rings + ring].src;
1380                 tx->crb_intr_mask = ahw->pci_base0 + intr_mask;
1381         }
1382         netdev_info(adapter->netdev,
1383                     "Tx Context[0x%x] Created, state:0x%x\n",
1384                     tx->ctx_id, mbx_out->state);
1385 out:
1386         qlcnic_free_mbx_args(&cmd);
1387         return err;
1388 }
1389
1390 static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
1391                                       u8 num_sds_ring)
1392 {
1393         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1394         struct qlcnic_host_sds_ring *sds_ring;
1395         struct qlcnic_host_rds_ring *rds_ring;
1396         u16 adapter_state = adapter->is_up;
1397         u8 ring;
1398         int ret;
1399
1400         netif_device_detach(netdev);
1401
1402         if (netif_running(netdev))
1403                 __qlcnic_down(adapter, netdev);
1404
1405         qlcnic_detach(adapter);
1406
1407         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
1408         adapter->ahw->diag_test = test;
1409         adapter->ahw->linkup = 0;
1410
1411         ret = qlcnic_attach(adapter);
1412         if (ret) {
1413                 netif_device_attach(netdev);
1414                 return ret;
1415         }
1416
1417         ret = qlcnic_fw_create_ctx(adapter);
1418         if (ret) {
1419                 qlcnic_detach(adapter);
1420                 if (adapter_state == QLCNIC_ADAPTER_UP_MAGIC) {
1421                         adapter->drv_sds_rings = num_sds_ring;
1422                         qlcnic_attach(adapter);
1423                 }
1424                 netif_device_attach(netdev);
1425                 return ret;
1426         }
1427
1428         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1429                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1430                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1431         }
1432
1433         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1434                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1435                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1436                         qlcnic_enable_sds_intr(adapter, sds_ring);
1437                 }
1438         }
1439
1440         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1441                 adapter->ahw->loopback_state = 0;
1442                 adapter->ahw->hw_ops->setup_link_event(adapter, 1);
1443         }
1444
1445         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1446         return 0;
1447 }
1448
1449 static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
1450                                       u8 drv_sds_rings)
1451 {
1452         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1453         struct qlcnic_host_sds_ring *sds_ring;
1454         int ring;
1455
1456         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1457         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1458                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1459                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1460                         if (adapter->flags & QLCNIC_MSIX_ENABLED)
1461                                 qlcnic_disable_sds_intr(adapter, sds_ring);
1462                 }
1463         }
1464
1465         qlcnic_fw_destroy_ctx(adapter);
1466         qlcnic_detach(adapter);
1467
1468         adapter->ahw->diag_test = 0;
1469         adapter->drv_sds_rings = drv_sds_rings;
1470
1471         if (qlcnic_attach(adapter))
1472                 goto out;
1473
1474         if (netif_running(netdev))
1475                 __qlcnic_up(adapter, netdev);
1476
1477 out:
1478         netif_device_attach(netdev);
1479 }
1480
1481 static void qlcnic_83xx_get_beacon_state(struct qlcnic_adapter *adapter)
1482 {
1483         struct qlcnic_hardware_context *ahw = adapter->ahw;
1484         struct qlcnic_cmd_args cmd;
1485         u8 beacon_state;
1486         int err = 0;
1487
1488         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LED_CONFIG);
1489         if (!err) {
1490                 err = qlcnic_issue_cmd(adapter, &cmd);
1491                 if (!err) {
1492                         beacon_state = cmd.rsp.arg[4];
1493                         if (beacon_state == QLCNIC_BEACON_DISABLE)
1494                                 ahw->beacon_state = QLC_83XX_BEACON_OFF;
1495                         else if (beacon_state == QLC_83XX_ENABLE_BEACON)
1496                                 ahw->beacon_state = QLC_83XX_BEACON_ON;
1497                 }
1498         } else {
1499                 netdev_err(adapter->netdev, "Get beacon state failed, err=%d\n",
1500                            err);
1501         }
1502
1503         qlcnic_free_mbx_args(&cmd);
1504
1505         return;
1506 }
1507
1508 int qlcnic_83xx_config_led(struct qlcnic_adapter *adapter, u32 state,
1509                            u32 beacon)
1510 {
1511         struct qlcnic_cmd_args cmd;
1512         u32 mbx_in;
1513         int i, status = 0;
1514
1515         if (state) {
1516                 /* Get LED configuration */
1517                 status = qlcnic_alloc_mbx_args(&cmd, adapter,
1518                                                QLCNIC_CMD_GET_LED_CONFIG);
1519                 if (status)
1520                         return status;
1521
1522                 status = qlcnic_issue_cmd(adapter, &cmd);
1523                 if (status) {
1524                         dev_err(&adapter->pdev->dev,
1525                                 "Get led config failed.\n");
1526                         goto mbx_err;
1527                 } else {
1528                         for (i = 0; i < 4; i++)
1529                                 adapter->ahw->mbox_reg[i] = cmd.rsp.arg[i+1];
1530                 }
1531                 qlcnic_free_mbx_args(&cmd);
1532                 /* Set LED Configuration */
1533                 mbx_in = (LSW(QLC_83XX_LED_CONFIG) << 16) |
1534                           LSW(QLC_83XX_LED_CONFIG);
1535                 status = qlcnic_alloc_mbx_args(&cmd, adapter,
1536                                                QLCNIC_CMD_SET_LED_CONFIG);
1537                 if (status)
1538                         return status;
1539
1540                 cmd.req.arg[1] = mbx_in;
1541                 cmd.req.arg[2] = mbx_in;
1542                 cmd.req.arg[3] = mbx_in;
1543                 if (beacon)
1544                         cmd.req.arg[4] = QLC_83XX_ENABLE_BEACON;
1545                 status = qlcnic_issue_cmd(adapter, &cmd);
1546                 if (status) {
1547                         dev_err(&adapter->pdev->dev,
1548                                 "Set led config failed.\n");
1549                 }
1550 mbx_err:
1551                 qlcnic_free_mbx_args(&cmd);
1552                 return status;
1553
1554         } else {
1555                 /* Restoring default LED configuration */
1556                 status = qlcnic_alloc_mbx_args(&cmd, adapter,
1557                                                QLCNIC_CMD_SET_LED_CONFIG);
1558                 if (status)
1559                         return status;
1560
1561                 cmd.req.arg[1] = adapter->ahw->mbox_reg[0];
1562                 cmd.req.arg[2] = adapter->ahw->mbox_reg[1];
1563                 cmd.req.arg[3] = adapter->ahw->mbox_reg[2];
1564                 if (beacon)
1565                         cmd.req.arg[4] = adapter->ahw->mbox_reg[3];
1566                 status = qlcnic_issue_cmd(adapter, &cmd);
1567                 if (status)
1568                         dev_err(&adapter->pdev->dev,
1569                                 "Restoring led config failed.\n");
1570                 qlcnic_free_mbx_args(&cmd);
1571                 return status;
1572         }
1573 }
1574
1575 int  qlcnic_83xx_set_led(struct net_device *netdev,
1576                          enum ethtool_phys_id_state state)
1577 {
1578         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1579         int err = -EIO, active = 1;
1580
1581         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
1582                 netdev_warn(netdev,
1583                             "LED test is not supported in non-privileged mode\n");
1584                 return -EOPNOTSUPP;
1585         }
1586
1587         switch (state) {
1588         case ETHTOOL_ID_ACTIVE:
1589                 if (test_and_set_bit(__QLCNIC_LED_ENABLE, &adapter->state))
1590                         return -EBUSY;
1591
1592                 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1593                         break;
1594
1595                 err = qlcnic_83xx_config_led(adapter, active, 0);
1596                 if (err)
1597                         netdev_err(netdev, "Failed to set LED blink state\n");
1598                 break;
1599         case ETHTOOL_ID_INACTIVE:
1600                 active = 0;
1601
1602                 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1603                         break;
1604
1605                 err = qlcnic_83xx_config_led(adapter, active, 0);
1606                 if (err)
1607                         netdev_err(netdev, "Failed to reset LED blink state\n");
1608                 break;
1609
1610         default:
1611                 return -EINVAL;
1612         }
1613
1614         if (!active || err)
1615                 clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
1616
1617         return err;
1618 }
1619
1620 void qlcnic_83xx_initialize_nic(struct qlcnic_adapter *adapter, int enable)
1621 {
1622         struct qlcnic_cmd_args cmd;
1623         int status;
1624
1625         if (qlcnic_sriov_vf_check(adapter))
1626                 return;
1627
1628         if (enable)
1629                 status = qlcnic_alloc_mbx_args(&cmd, adapter,
1630                                                QLCNIC_CMD_INIT_NIC_FUNC);
1631         else
1632                 status = qlcnic_alloc_mbx_args(&cmd, adapter,
1633                                                QLCNIC_CMD_STOP_NIC_FUNC);
1634
1635         if (status)
1636                 return;
1637
1638         cmd.req.arg[1] = QLC_REGISTER_LB_IDC | QLC_INIT_FW_RESOURCES;
1639
1640         if (adapter->dcb)
1641                 cmd.req.arg[1] |= QLC_REGISTER_DCB_AEN;
1642
1643         status = qlcnic_issue_cmd(adapter, &cmd);
1644         if (status)
1645                 dev_err(&adapter->pdev->dev,
1646                         "Failed to %s in NIC IDC function event.\n",
1647                         (enable ? "register" : "unregister"));
1648
1649         qlcnic_free_mbx_args(&cmd);
1650 }
1651
1652 static int qlcnic_83xx_set_port_config(struct qlcnic_adapter *adapter)
1653 {
1654         struct qlcnic_cmd_args cmd;
1655         int err;
1656
1657         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_PORT_CONFIG);
1658         if (err)
1659                 return err;
1660
1661         cmd.req.arg[1] = adapter->ahw->port_config;
1662         err = qlcnic_issue_cmd(adapter, &cmd);
1663         if (err)
1664                 dev_info(&adapter->pdev->dev, "Set Port Config failed.\n");
1665         qlcnic_free_mbx_args(&cmd);
1666         return err;
1667 }
1668
1669 static int qlcnic_83xx_get_port_config(struct qlcnic_adapter *adapter)
1670 {
1671         struct qlcnic_cmd_args cmd;
1672         int err;
1673
1674         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PORT_CONFIG);
1675         if (err)
1676                 return err;
1677
1678         err = qlcnic_issue_cmd(adapter, &cmd);
1679         if (err)
1680                 dev_info(&adapter->pdev->dev, "Get Port config failed\n");
1681         else
1682                 adapter->ahw->port_config = cmd.rsp.arg[1];
1683         qlcnic_free_mbx_args(&cmd);
1684         return err;
1685 }
1686
1687 int qlcnic_83xx_setup_link_event(struct qlcnic_adapter *adapter, int enable)
1688 {
1689         int err;
1690         u32 temp;
1691         struct qlcnic_cmd_args cmd;
1692
1693         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_EVENT);
1694         if (err)
1695                 return err;
1696
1697         temp = adapter->recv_ctx->context_id << 16;
1698         cmd.req.arg[1] = (enable ? 1 : 0) | BIT_8 | temp;
1699         err = qlcnic_issue_cmd(adapter, &cmd);
1700         if (err)
1701                 dev_info(&adapter->pdev->dev,
1702                          "Setup linkevent mailbox failed\n");
1703         qlcnic_free_mbx_args(&cmd);
1704         return err;
1705 }
1706
1707 static void qlcnic_83xx_set_interface_id_promisc(struct qlcnic_adapter *adapter,
1708                                                  u32 *interface_id)
1709 {
1710         if (qlcnic_sriov_pf_check(adapter)) {
1711                 qlcnic_alloc_lb_filters_mem(adapter);
1712                 qlcnic_pf_set_interface_id_promisc(adapter, interface_id);
1713                 adapter->rx_mac_learn = true;
1714         } else {
1715                 if (!qlcnic_sriov_vf_check(adapter))
1716                         *interface_id = adapter->recv_ctx->context_id << 16;
1717         }
1718 }
1719
1720 int qlcnic_83xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
1721 {
1722         struct qlcnic_cmd_args *cmd = NULL;
1723         u32 temp = 0;
1724         int err;
1725
1726         if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
1727                 return -EIO;
1728
1729         cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
1730         if (!cmd)
1731                 return -ENOMEM;
1732
1733         err = qlcnic_alloc_mbx_args(cmd, adapter,
1734                                     QLCNIC_CMD_CONFIGURE_MAC_RX_MODE);
1735         if (err)
1736                 goto out;
1737
1738         cmd->type = QLC_83XX_MBX_CMD_NO_WAIT;
1739         qlcnic_83xx_set_interface_id_promisc(adapter, &temp);
1740
1741         if (qlcnic_84xx_check(adapter) && qlcnic_sriov_pf_check(adapter))
1742                 mode = VPORT_MISS_MODE_ACCEPT_ALL;
1743
1744         cmd->req.arg[1] = mode | temp;
1745         err = qlcnic_issue_cmd(adapter, cmd);
1746         if (!err)
1747                 return err;
1748
1749         qlcnic_free_mbx_args(cmd);
1750
1751 out:
1752         kfree(cmd);
1753         return err;
1754 }
1755
1756 int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
1757 {
1758         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1759         struct qlcnic_hardware_context *ahw = adapter->ahw;
1760         u8 drv_sds_rings = adapter->drv_sds_rings;
1761         u8 drv_tx_rings = adapter->drv_tx_rings;
1762         int ret = 0, loop = 0;
1763
1764         if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
1765                 netdev_warn(netdev,
1766                             "Loopback test not supported in non privileged mode\n");
1767                 return -ENOTSUPP;
1768         }
1769
1770         if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1771                 netdev_info(netdev, "Device is resetting\n");
1772                 return -EBUSY;
1773         }
1774
1775         if (qlcnic_get_diag_lock(adapter)) {
1776                 netdev_info(netdev, "Device is in diagnostics mode\n");
1777                 return -EBUSY;
1778         }
1779
1780         netdev_info(netdev, "%s loopback test in progress\n",
1781                     mode == QLCNIC_ILB_MODE ? "internal" : "external");
1782
1783         ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST,
1784                                          drv_sds_rings);
1785         if (ret)
1786                 goto fail_diag_alloc;
1787
1788         ret = qlcnic_83xx_set_lb_mode(adapter, mode);
1789         if (ret)
1790                 goto free_diag_res;
1791
1792         /* Poll for link up event before running traffic */
1793         do {
1794                 msleep(QLC_83XX_LB_MSLEEP_COUNT);
1795
1796                 if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1797                         netdev_info(netdev,
1798                                     "Device is resetting, free LB test resources\n");
1799                         ret = -EBUSY;
1800                         goto free_diag_res;
1801                 }
1802                 if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
1803                         netdev_info(netdev,
1804                                     "Firmware didn't sent link up event to loopback request\n");
1805                         ret = -ETIMEDOUT;
1806                         qlcnic_83xx_clear_lb_mode(adapter, mode);
1807                         goto free_diag_res;
1808                 }
1809         } while ((adapter->ahw->linkup && ahw->has_link_events) != 1);
1810
1811         ret = qlcnic_do_lb_test(adapter, mode);
1812
1813         qlcnic_83xx_clear_lb_mode(adapter, mode);
1814
1815 free_diag_res:
1816         qlcnic_83xx_diag_free_res(netdev, drv_sds_rings);
1817
1818 fail_diag_alloc:
1819         adapter->drv_sds_rings = drv_sds_rings;
1820         adapter->drv_tx_rings = drv_tx_rings;
1821         qlcnic_release_diag_lock(adapter);
1822         return ret;
1823 }
1824
1825 static void qlcnic_extend_lb_idc_cmpltn_wait(struct qlcnic_adapter *adapter,
1826                                              u32 *max_wait_count)
1827 {
1828         struct qlcnic_hardware_context *ahw = adapter->ahw;
1829         int temp;
1830
1831         netdev_info(adapter->netdev, "Received loopback IDC time extend event for 0x%x seconds\n",
1832                     ahw->extend_lb_time);
1833         temp = ahw->extend_lb_time * 1000;
1834         *max_wait_count += temp / QLC_83XX_LB_MSLEEP_COUNT;
1835         ahw->extend_lb_time = 0;
1836 }
1837
1838 static int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
1839 {
1840         struct qlcnic_hardware_context *ahw = adapter->ahw;
1841         struct net_device *netdev = adapter->netdev;
1842         u32 config, max_wait_count;
1843         int status = 0, loop = 0;
1844
1845         ahw->extend_lb_time = 0;
1846         max_wait_count = QLC_83XX_LB_WAIT_COUNT;
1847         status = qlcnic_83xx_get_port_config(adapter);
1848         if (status)
1849                 return status;
1850
1851         config = ahw->port_config;
1852
1853         /* Check if port is already in loopback mode */
1854         if ((config & QLC_83XX_CFG_LOOPBACK_HSS) ||
1855             (config & QLC_83XX_CFG_LOOPBACK_EXT)) {
1856                 netdev_err(netdev,
1857                            "Port already in Loopback mode.\n");
1858                 return -EINPROGRESS;
1859         }
1860
1861         set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1862
1863         if (mode == QLCNIC_ILB_MODE)
1864                 ahw->port_config |= QLC_83XX_CFG_LOOPBACK_HSS;
1865         if (mode == QLCNIC_ELB_MODE)
1866                 ahw->port_config |= QLC_83XX_CFG_LOOPBACK_EXT;
1867
1868         status = qlcnic_83xx_set_port_config(adapter);
1869         if (status) {
1870                 netdev_err(netdev,
1871                            "Failed to Set Loopback Mode = 0x%x.\n",
1872                            ahw->port_config);
1873                 ahw->port_config = config;
1874                 clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1875                 return status;
1876         }
1877
1878         /* Wait for Link and IDC Completion AEN */
1879         do {
1880                 msleep(QLC_83XX_LB_MSLEEP_COUNT);
1881
1882                 if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1883                         netdev_info(netdev,
1884                                     "Device is resetting, free LB test resources\n");
1885                         clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1886                         return -EBUSY;
1887                 }
1888
1889                 if (ahw->extend_lb_time)
1890                         qlcnic_extend_lb_idc_cmpltn_wait(adapter,
1891                                                          &max_wait_count);
1892
1893                 if (loop++ > max_wait_count) {
1894                         netdev_err(netdev, "%s: Did not receive loopback IDC completion AEN\n",
1895                                    __func__);
1896                         clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1897                         qlcnic_83xx_clear_lb_mode(adapter, mode);
1898                         return -ETIMEDOUT;
1899                 }
1900         } while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
1901
1902         qlcnic_sre_macaddr_change(adapter, adapter->mac_addr, 0,
1903                                   QLCNIC_MAC_ADD);
1904         return status;
1905 }
1906
1907 static int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
1908 {
1909         struct qlcnic_hardware_context *ahw = adapter->ahw;
1910         u32 config = ahw->port_config, max_wait_count;
1911         struct net_device *netdev = adapter->netdev;
1912         int status = 0, loop = 0;
1913
1914         ahw->extend_lb_time = 0;
1915         max_wait_count = QLC_83XX_LB_WAIT_COUNT;
1916         set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1917         if (mode == QLCNIC_ILB_MODE)
1918                 ahw->port_config &= ~QLC_83XX_CFG_LOOPBACK_HSS;
1919         if (mode == QLCNIC_ELB_MODE)
1920                 ahw->port_config &= ~QLC_83XX_CFG_LOOPBACK_EXT;
1921
1922         status = qlcnic_83xx_set_port_config(adapter);
1923         if (status) {
1924                 netdev_err(netdev,
1925                            "Failed to Clear Loopback Mode = 0x%x.\n",
1926                            ahw->port_config);
1927                 ahw->port_config = config;
1928                 clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1929                 return status;
1930         }
1931
1932         /* Wait for Link and IDC Completion AEN */
1933         do {
1934                 msleep(QLC_83XX_LB_MSLEEP_COUNT);
1935
1936                 if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1937                         netdev_info(netdev,
1938                                     "Device is resetting, free LB test resources\n");
1939                         clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1940                         return -EBUSY;
1941                 }
1942
1943                 if (ahw->extend_lb_time)
1944                         qlcnic_extend_lb_idc_cmpltn_wait(adapter,
1945                                                          &max_wait_count);
1946
1947                 if (loop++ > max_wait_count) {
1948                         netdev_err(netdev, "%s: Did not receive loopback IDC completion AEN\n",
1949                                    __func__);
1950                         clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1951                         return -ETIMEDOUT;
1952                 }
1953         } while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
1954
1955         qlcnic_sre_macaddr_change(adapter, adapter->mac_addr, 0,
1956                                   QLCNIC_MAC_DEL);
1957         return status;
1958 }
1959
1960 static void qlcnic_83xx_set_interface_id_ipaddr(struct qlcnic_adapter *adapter,
1961                                                 u32 *interface_id)
1962 {
1963         if (qlcnic_sriov_pf_check(adapter)) {
1964                 qlcnic_pf_set_interface_id_ipaddr(adapter, interface_id);
1965         } else {
1966                 if (!qlcnic_sriov_vf_check(adapter))
1967                         *interface_id = adapter->recv_ctx->context_id << 16;
1968         }
1969 }
1970
1971 void qlcnic_83xx_config_ipaddr(struct qlcnic_adapter *adapter, __be32 ip,
1972                                int mode)
1973 {
1974         int err;
1975         u32 temp = 0, temp_ip;
1976         struct qlcnic_cmd_args cmd;
1977
1978         err = qlcnic_alloc_mbx_args(&cmd, adapter,
1979                                     QLCNIC_CMD_CONFIGURE_IP_ADDR);
1980         if (err)
1981                 return;
1982
1983         qlcnic_83xx_set_interface_id_ipaddr(adapter, &temp);
1984
1985         if (mode == QLCNIC_IP_UP)
1986                 cmd.req.arg[1] = 1 | temp;
1987         else
1988                 cmd.req.arg[1] = 2 | temp;
1989
1990         /*
1991          * Adapter needs IP address in network byte order.
1992          * But hardware mailbox registers go through writel(), hence IP address
1993          * gets swapped on big endian architecture.
1994          * To negate swapping of writel() on big endian architecture
1995          * use swab32(value).
1996          */
1997
1998         temp_ip = swab32(ntohl(ip));
1999         memcpy(&cmd.req.arg[2], &temp_ip, sizeof(u32));
2000         err = qlcnic_issue_cmd(adapter, &cmd);
2001         if (err != QLCNIC_RCODE_SUCCESS)
2002                 dev_err(&adapter->netdev->dev,
2003                         "could not notify %s IP 0x%x request\n",
2004                         (mode == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
2005
2006         qlcnic_free_mbx_args(&cmd);
2007 }
2008
2009 int qlcnic_83xx_config_hw_lro(struct qlcnic_adapter *adapter, int mode)
2010 {
2011         int err;
2012         u32 temp, arg1;
2013         struct qlcnic_cmd_args cmd;
2014         int lro_bit_mask;
2015
2016         lro_bit_mask = (mode ? (BIT_0 | BIT_1 | BIT_2 | BIT_3) : 0);
2017
2018         if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
2019                 return 0;
2020
2021         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_HW_LRO);
2022         if (err)
2023                 return err;
2024
2025         temp = adapter->recv_ctx->context_id << 16;
2026         arg1 = lro_bit_mask | temp;
2027         cmd.req.arg[1] = arg1;
2028
2029         err = qlcnic_issue_cmd(adapter, &cmd);
2030         if (err)
2031                 dev_info(&adapter->pdev->dev, "LRO config failed\n");
2032         qlcnic_free_mbx_args(&cmd);
2033
2034         return err;
2035 }
2036
2037 int qlcnic_83xx_config_rss(struct qlcnic_adapter *adapter, int enable)
2038 {
2039         int err;
2040         u32 word;
2041         struct qlcnic_cmd_args cmd;
2042         const u64 key[] = { 0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
2043                             0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
2044                             0x255b0ec26d5a56daULL };
2045
2046         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_RSS);
2047         if (err)
2048                 return err;
2049         /*
2050          * RSS request:
2051          * bits 3-0: Rsvd
2052          *      5-4: hash_type_ipv4
2053          *      7-6: hash_type_ipv6
2054          *        8: enable
2055          *        9: use indirection table
2056          *    16-31: indirection table mask
2057          */
2058         word =  ((u32)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
2059                 ((u32)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
2060                 ((u32)(enable & 0x1) << 8) |
2061                 ((0x7ULL) << 16);
2062         cmd.req.arg[1] = (adapter->recv_ctx->context_id);
2063         cmd.req.arg[2] = word;
2064         memcpy(&cmd.req.arg[4], key, sizeof(key));
2065
2066         err = qlcnic_issue_cmd(adapter, &cmd);
2067
2068         if (err)
2069                 dev_info(&adapter->pdev->dev, "RSS config failed\n");
2070         qlcnic_free_mbx_args(&cmd);
2071
2072         return err;
2073
2074 }
2075
2076 static void qlcnic_83xx_set_interface_id_macaddr(struct qlcnic_adapter *adapter,
2077                                                  u32 *interface_id)
2078 {
2079         if (qlcnic_sriov_pf_check(adapter)) {
2080                 qlcnic_pf_set_interface_id_macaddr(adapter, interface_id);
2081         } else {
2082                 if (!qlcnic_sriov_vf_check(adapter))
2083                         *interface_id = adapter->recv_ctx->context_id << 16;
2084         }
2085 }
2086
2087 int qlcnic_83xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
2088                                    u16 vlan_id, u8 op)
2089 {
2090         struct qlcnic_cmd_args *cmd = NULL;
2091         struct qlcnic_macvlan_mbx mv;
2092         u32 *buf, temp = 0;
2093         int err;
2094
2095         if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
2096                 return -EIO;
2097
2098         cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
2099         if (!cmd)
2100                 return -ENOMEM;
2101
2102         err = qlcnic_alloc_mbx_args(cmd, adapter, QLCNIC_CMD_CONFIG_MAC_VLAN);
2103         if (err)
2104                 goto out;
2105
2106         cmd->type = QLC_83XX_MBX_CMD_NO_WAIT;
2107
2108         if (vlan_id)
2109                 op = (op == QLCNIC_MAC_ADD || op == QLCNIC_MAC_VLAN_ADD) ?
2110                      QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_VLAN_DEL;
2111
2112         cmd->req.arg[1] = op | (1 << 8);
2113         qlcnic_83xx_set_interface_id_macaddr(adapter, &temp);
2114         cmd->req.arg[1] |= temp;
2115         mv.vlan = vlan_id;
2116         mv.mac_addr0 = addr[0];
2117         mv.mac_addr1 = addr[1];
2118         mv.mac_addr2 = addr[2];
2119         mv.mac_addr3 = addr[3];
2120         mv.mac_addr4 = addr[4];
2121         mv.mac_addr5 = addr[5];
2122         buf = &cmd->req.arg[2];
2123         memcpy(buf, &mv, sizeof(struct qlcnic_macvlan_mbx));
2124         err = qlcnic_issue_cmd(adapter, cmd);
2125         if (!err)
2126                 return err;
2127
2128         qlcnic_free_mbx_args(cmd);
2129 out:
2130         kfree(cmd);
2131         return err;
2132 }
2133
2134 void qlcnic_83xx_change_l2_filter(struct qlcnic_adapter *adapter, u64 *addr,
2135                                   u16 vlan_id)
2136 {
2137         u8 mac[ETH_ALEN];
2138         memcpy(&mac, addr, ETH_ALEN);
2139         qlcnic_83xx_sre_macaddr_change(adapter, mac, vlan_id, QLCNIC_MAC_ADD);
2140 }
2141
2142 static void qlcnic_83xx_configure_mac(struct qlcnic_adapter *adapter, u8 *mac,
2143                                       u8 type, struct qlcnic_cmd_args *cmd)
2144 {
2145         switch (type) {
2146         case QLCNIC_SET_STATION_MAC:
2147         case QLCNIC_SET_FAC_DEF_MAC:
2148                 memcpy(&cmd->req.arg[2], mac, sizeof(u32));
2149                 memcpy(&cmd->req.arg[3], &mac[4], sizeof(u16));
2150                 break;
2151         }
2152         cmd->req.arg[1] = type;
2153 }
2154
2155 int qlcnic_83xx_get_mac_address(struct qlcnic_adapter *adapter, u8 *mac,
2156                                 u8 function)
2157 {
2158         int err, i;
2159         struct qlcnic_cmd_args cmd;
2160         u32 mac_low, mac_high;
2161
2162         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
2163         if (err)
2164                 return err;
2165
2166         qlcnic_83xx_configure_mac(adapter, mac, QLCNIC_GET_CURRENT_MAC, &cmd);
2167         err = qlcnic_issue_cmd(adapter, &cmd);
2168
2169         if (err == QLCNIC_RCODE_SUCCESS) {
2170                 mac_low = cmd.rsp.arg[1];
2171                 mac_high = cmd.rsp.arg[2];
2172
2173                 for (i = 0; i < 2; i++)
2174                         mac[i] = (u8) (mac_high >> ((1 - i) * 8));
2175                 for (i = 2; i < 6; i++)
2176                         mac[i] = (u8) (mac_low >> ((5 - i) * 8));
2177         } else {
2178                 dev_err(&adapter->pdev->dev, "Failed to get mac address%d\n",
2179                         err);
2180                 err = -EIO;
2181         }
2182         qlcnic_free_mbx_args(&cmd);
2183         return err;
2184 }
2185
2186 static int qlcnic_83xx_set_rx_intr_coal(struct qlcnic_adapter *adapter)
2187 {
2188         struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
2189         struct qlcnic_cmd_args cmd;
2190         u16 temp;
2191         int err;
2192
2193         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTR_COAL);
2194         if (err)
2195                 return err;
2196
2197         temp = adapter->recv_ctx->context_id;
2198         cmd.req.arg[1] = QLCNIC_INTR_COAL_TYPE_RX | temp << 16;
2199         temp = coal->rx_time_us;
2200         cmd.req.arg[2] = coal->rx_packets | temp << 16;
2201         cmd.req.arg[3] = coal->flag;
2202
2203         err = qlcnic_issue_cmd(adapter, &cmd);
2204         if (err != QLCNIC_RCODE_SUCCESS)
2205                 netdev_err(adapter->netdev,
2206                            "failed to set interrupt coalescing parameters\n");
2207
2208         qlcnic_free_mbx_args(&cmd);
2209
2210         return err;
2211 }
2212
2213 static int qlcnic_83xx_set_tx_intr_coal(struct qlcnic_adapter *adapter)
2214 {
2215         struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
2216         struct qlcnic_cmd_args cmd;
2217         u16 temp;
2218         int err;
2219
2220         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTR_COAL);
2221         if (err)
2222                 return err;
2223
2224         temp = adapter->tx_ring->ctx_id;
2225         cmd.req.arg[1] = QLCNIC_INTR_COAL_TYPE_TX | temp << 16;
2226         temp = coal->tx_time_us;
2227         cmd.req.arg[2] = coal->tx_packets | temp << 16;
2228         cmd.req.arg[3] = coal->flag;
2229
2230         err = qlcnic_issue_cmd(adapter, &cmd);
2231         if (err != QLCNIC_RCODE_SUCCESS)
2232                 netdev_err(adapter->netdev,
2233                            "failed to set interrupt coalescing  parameters\n");
2234
2235         qlcnic_free_mbx_args(&cmd);
2236
2237         return err;
2238 }
2239
2240 int qlcnic_83xx_set_rx_tx_intr_coal(struct qlcnic_adapter *adapter)
2241 {
2242         int err = 0;
2243
2244         err = qlcnic_83xx_set_rx_intr_coal(adapter);
2245         if (err)
2246                 netdev_err(adapter->netdev,
2247                            "failed to set Rx coalescing parameters\n");
2248
2249         err = qlcnic_83xx_set_tx_intr_coal(adapter);
2250         if (err)
2251                 netdev_err(adapter->netdev,
2252                            "failed to set Tx coalescing parameters\n");
2253
2254         return err;
2255 }
2256
2257 int qlcnic_83xx_config_intr_coal(struct qlcnic_adapter *adapter,
2258                                  struct ethtool_coalesce *ethcoal)
2259 {
2260         struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
2261         u32 rx_coalesce_usecs, rx_max_frames;
2262         u32 tx_coalesce_usecs, tx_max_frames;
2263         int err;
2264
2265         if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
2266                 return -EIO;
2267
2268         tx_coalesce_usecs = ethcoal->tx_coalesce_usecs;
2269         tx_max_frames = ethcoal->tx_max_coalesced_frames;
2270         rx_coalesce_usecs = ethcoal->rx_coalesce_usecs;
2271         rx_max_frames = ethcoal->rx_max_coalesced_frames;
2272         coal->flag = QLCNIC_INTR_DEFAULT;
2273
2274         if ((coal->rx_time_us == rx_coalesce_usecs) &&
2275             (coal->rx_packets == rx_max_frames)) {
2276                 coal->type = QLCNIC_INTR_COAL_TYPE_TX;
2277                 coal->tx_time_us = tx_coalesce_usecs;
2278                 coal->tx_packets = tx_max_frames;
2279         } else if ((coal->tx_time_us == tx_coalesce_usecs) &&
2280                    (coal->tx_packets == tx_max_frames)) {
2281                 coal->type = QLCNIC_INTR_COAL_TYPE_RX;
2282                 coal->rx_time_us = rx_coalesce_usecs;
2283                 coal->rx_packets = rx_max_frames;
2284         } else {
2285                 coal->type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2286                 coal->rx_time_us = rx_coalesce_usecs;
2287                 coal->rx_packets = rx_max_frames;
2288                 coal->tx_time_us = tx_coalesce_usecs;
2289                 coal->tx_packets = tx_max_frames;
2290         }
2291
2292         switch (coal->type) {
2293         case QLCNIC_INTR_COAL_TYPE_RX:
2294                 err = qlcnic_83xx_set_rx_intr_coal(adapter);
2295                 break;
2296         case QLCNIC_INTR_COAL_TYPE_TX:
2297                 err = qlcnic_83xx_set_tx_intr_coal(adapter);
2298                 break;
2299         case QLCNIC_INTR_COAL_TYPE_RX_TX:
2300                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
2301                 break;
2302         default:
2303                 err = -EINVAL;
2304                 netdev_err(adapter->netdev,
2305                            "Invalid Interrupt coalescing type\n");
2306                 break;
2307         }
2308
2309         return err;
2310 }
2311
2312 static void qlcnic_83xx_handle_link_aen(struct qlcnic_adapter *adapter,
2313                                         u32 data[])
2314 {
2315         struct qlcnic_hardware_context *ahw = adapter->ahw;
2316         u8 link_status, duplex;
2317         /* link speed */
2318         link_status = LSB(data[3]) & 1;
2319         if (link_status) {
2320                 ahw->link_speed = MSW(data[2]);
2321                 duplex = LSB(MSW(data[3]));
2322                 if (duplex)
2323                         ahw->link_duplex = DUPLEX_FULL;
2324                 else
2325                         ahw->link_duplex = DUPLEX_HALF;
2326         } else {
2327                 ahw->link_speed = SPEED_UNKNOWN;
2328                 ahw->link_duplex = DUPLEX_UNKNOWN;
2329         }
2330
2331         ahw->link_autoneg = MSB(MSW(data[3]));
2332         ahw->module_type = MSB(LSW(data[3]));
2333         ahw->has_link_events = 1;
2334         ahw->lb_mode = data[4] & QLCNIC_LB_MODE_MASK;
2335         qlcnic_advert_link_change(adapter, link_status);
2336 }
2337
2338 static irqreturn_t qlcnic_83xx_handle_aen(int irq, void *data)
2339 {
2340         u32 mask, resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
2341         struct qlcnic_adapter *adapter = data;
2342         struct qlcnic_mailbox *mbx;
2343         unsigned long flags;
2344
2345         mbx = adapter->ahw->mailbox;
2346         spin_lock_irqsave(&mbx->aen_lock, flags);
2347         resp = QLCRDX(adapter->ahw, QLCNIC_FW_MBX_CTRL);
2348         if (!(resp & QLCNIC_SET_OWNER))
2349                 goto out;
2350
2351         event = readl(QLCNIC_MBX_FW(adapter->ahw, 0));
2352         if (event &  QLCNIC_MBX_ASYNC_EVENT) {
2353                 __qlcnic_83xx_process_aen(adapter);
2354         } else {
2355                 if (mbx->rsp_status != rsp_status)
2356                         qlcnic_83xx_notify_mbx_response(mbx);
2357                 else
2358                         adapter->stats.mbx_spurious_intr++;
2359         }
2360
2361 out:
2362         mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
2363         writel(0, adapter->ahw->pci_base0 + mask);
2364         spin_unlock_irqrestore(&mbx->aen_lock, flags);
2365         return IRQ_HANDLED;
2366 }
2367
2368 int qlcnic_83xx_set_nic_info(struct qlcnic_adapter *adapter,
2369                              struct qlcnic_info *nic)
2370 {
2371         int i, err = -EIO;
2372         struct qlcnic_cmd_args cmd;
2373
2374         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2375                 dev_err(&adapter->pdev->dev,
2376                         "%s: Error, invoked by non management func\n",
2377                         __func__);
2378                 return err;
2379         }
2380
2381         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
2382         if (err)
2383                 return err;
2384
2385         cmd.req.arg[1] = (nic->pci_func << 16);
2386         cmd.req.arg[2] = 0x1 << 16;
2387         cmd.req.arg[3] = nic->phys_port | (nic->switch_mode << 16);
2388         cmd.req.arg[4] = nic->capabilities;
2389         cmd.req.arg[5] = (nic->max_mac_filters & 0xFF) | ((nic->max_mtu) << 16);
2390         cmd.req.arg[6] = (nic->max_tx_ques) | ((nic->max_rx_ques) << 16);
2391         cmd.req.arg[7] = (nic->min_tx_bw) | ((nic->max_tx_bw) << 16);
2392         for (i = 8; i < 32; i++)
2393                 cmd.req.arg[i] = 0;
2394
2395         err = qlcnic_issue_cmd(adapter, &cmd);
2396
2397         if (err != QLCNIC_RCODE_SUCCESS) {
2398                 dev_err(&adapter->pdev->dev, "Failed to set nic info%d\n",
2399                         err);
2400                 err = -EIO;
2401         }
2402
2403         qlcnic_free_mbx_args(&cmd);
2404
2405         return err;
2406 }
2407
2408 int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter,
2409                              struct qlcnic_info *npar_info, u8 func_id)
2410 {
2411         int err;
2412         u32 temp;
2413         u8 op = 0;
2414         struct qlcnic_cmd_args cmd;
2415         struct qlcnic_hardware_context *ahw = adapter->ahw;
2416
2417         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
2418         if (err)
2419                 return err;
2420
2421         if (func_id != ahw->pci_func) {
2422                 temp = func_id << 16;
2423                 cmd.req.arg[1] = op | BIT_31 | temp;
2424         } else {
2425                 cmd.req.arg[1] = ahw->pci_func << 16;
2426         }
2427         err = qlcnic_issue_cmd(adapter, &cmd);
2428         if (err) {
2429                 dev_info(&adapter->pdev->dev,
2430                          "Failed to get nic info %d\n", err);
2431                 goto out;
2432         }
2433
2434         npar_info->op_type = cmd.rsp.arg[1];
2435         npar_info->pci_func = cmd.rsp.arg[2] & 0xFFFF;
2436         npar_info->op_mode = (cmd.rsp.arg[2] & 0xFFFF0000) >> 16;
2437         npar_info->phys_port = cmd.rsp.arg[3] & 0xFFFF;
2438         npar_info->switch_mode = (cmd.rsp.arg[3] & 0xFFFF0000) >> 16;
2439         npar_info->capabilities = cmd.rsp.arg[4];
2440         npar_info->max_mac_filters = cmd.rsp.arg[5] & 0xFF;
2441         npar_info->max_mtu = (cmd.rsp.arg[5] & 0xFFFF0000) >> 16;
2442         npar_info->max_tx_ques = cmd.rsp.arg[6] & 0xFFFF;
2443         npar_info->max_rx_ques = (cmd.rsp.arg[6] & 0xFFFF0000) >> 16;
2444         npar_info->min_tx_bw = cmd.rsp.arg[7] & 0xFFFF;
2445         npar_info->max_tx_bw = (cmd.rsp.arg[7] & 0xFFFF0000) >> 16;
2446         if (cmd.rsp.arg[8] & 0x1)
2447                 npar_info->max_bw_reg_offset = (cmd.rsp.arg[8] & 0x7FFE) >> 1;
2448         if (cmd.rsp.arg[8] & 0x10000) {
2449                 temp = (cmd.rsp.arg[8] & 0x7FFE0000) >> 17;
2450                 npar_info->max_linkspeed_reg_offset = temp;
2451         }
2452
2453         memcpy(ahw->extra_capability, &cmd.rsp.arg[16],
2454                sizeof(ahw->extra_capability));
2455
2456 out:
2457         qlcnic_free_mbx_args(&cmd);
2458         return err;
2459 }
2460
2461 int qlcnic_get_pci_func_type(struct qlcnic_adapter *adapter, u16 type,
2462                              u16 *nic, u16 *fcoe, u16 *iscsi)
2463 {
2464         struct device *dev = &adapter->pdev->dev;
2465         int err = 0;
2466
2467         switch (type) {
2468         case QLCNIC_TYPE_NIC:
2469                 (*nic)++;
2470                 break;
2471         case QLCNIC_TYPE_FCOE:
2472                 (*fcoe)++;
2473                 break;
2474         case QLCNIC_TYPE_ISCSI:
2475                 (*iscsi)++;
2476                 break;
2477         default:
2478                 dev_err(dev, "%s: Unknown PCI type[%x]\n",
2479                         __func__, type);
2480                 err = -EIO;
2481         }
2482
2483         return err;
2484 }
2485
2486 int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *adapter,
2487                              struct qlcnic_pci_info *pci_info)
2488 {
2489         struct qlcnic_hardware_context *ahw = adapter->ahw;
2490         struct device *dev = &adapter->pdev->dev;
2491         u16 nic = 0, fcoe = 0, iscsi = 0;
2492         struct qlcnic_cmd_args cmd;
2493         int i, err = 0, j = 0;
2494         u32 temp;
2495
2496         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
2497         if (err)
2498                 return err;
2499
2500         err = qlcnic_issue_cmd(adapter, &cmd);
2501
2502         ahw->total_nic_func = 0;
2503         if (err == QLCNIC_RCODE_SUCCESS) {
2504                 ahw->max_pci_func = cmd.rsp.arg[1] & 0xFF;
2505                 for (i = 2, j = 0; j < ahw->max_vnic_func; j++, pci_info++) {
2506                         pci_info->id = cmd.rsp.arg[i] & 0xFFFF;
2507                         pci_info->active = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
2508                         i++;
2509                         if (!pci_info->active) {
2510                                 i += QLC_SKIP_INACTIVE_PCI_REGS;
2511                                 continue;
2512                         }
2513                         pci_info->type = cmd.rsp.arg[i] & 0xFFFF;
2514                         err = qlcnic_get_pci_func_type(adapter, pci_info->type,
2515                                                        &nic, &fcoe, &iscsi);
2516                         temp = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
2517                         pci_info->default_port = temp;
2518                         i++;
2519                         pci_info->tx_min_bw = cmd.rsp.arg[i] & 0xFFFF;
2520                         temp = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
2521                         pci_info->tx_max_bw = temp;
2522                         i = i + 2;
2523                         memcpy(pci_info->mac, &cmd.rsp.arg[i], ETH_ALEN - 2);
2524                         i++;
2525                         memcpy(pci_info->mac + sizeof(u32), &cmd.rsp.arg[i], 2);
2526                         i = i + 3;
2527                 }
2528         } else {
2529                 dev_err(dev, "Failed to get PCI Info, error = %d\n", err);
2530                 err = -EIO;
2531         }
2532
2533         ahw->total_nic_func = nic;
2534         ahw->total_pci_func = nic + fcoe + iscsi;
2535         if (ahw->total_nic_func == 0 || ahw->total_pci_func == 0) {
2536                 dev_err(dev, "%s: Invalid function count: total nic func[%x], total pci func[%x]\n",
2537                         __func__, ahw->total_nic_func, ahw->total_pci_func);
2538                 err = -EIO;
2539         }
2540         qlcnic_free_mbx_args(&cmd);
2541
2542         return err;
2543 }
2544
2545 int qlcnic_83xx_config_intrpt(struct qlcnic_adapter *adapter, bool op_type)
2546 {
2547         int i, index, err;
2548         u8 max_ints;
2549         u32 val, temp, type;
2550         struct qlcnic_cmd_args cmd;
2551
2552         max_ints = adapter->ahw->num_msix - 1;
2553         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTRPT);
2554         if (err)
2555                 return err;
2556
2557         cmd.req.arg[1] = max_ints;
2558
2559         if (qlcnic_sriov_vf_check(adapter))
2560                 cmd.req.arg[1] |= (adapter->ahw->pci_func << 8) | BIT_16;
2561
2562         for (i = 0, index = 2; i < max_ints; i++) {
2563                 type = op_type ? QLCNIC_INTRPT_ADD : QLCNIC_INTRPT_DEL;
2564                 val = type | (adapter->ahw->intr_tbl[i].type << 4);
2565                 if (adapter->ahw->intr_tbl[i].type == QLCNIC_INTRPT_MSIX)
2566                         val |= (adapter->ahw->intr_tbl[i].id << 16);
2567                 cmd.req.arg[index++] = val;
2568         }
2569         err = qlcnic_issue_cmd(adapter, &cmd);
2570         if (err) {
2571                 dev_err(&adapter->pdev->dev,
2572                         "Failed to configure interrupts 0x%x\n", err);
2573                 goto out;
2574         }
2575
2576         max_ints = cmd.rsp.arg[1];
2577         for (i = 0, index = 2; i < max_ints; i++, index += 2) {
2578                 val = cmd.rsp.arg[index];
2579                 if (LSB(val)) {
2580                         dev_info(&adapter->pdev->dev,
2581                                  "Can't configure interrupt %d\n",
2582                                  adapter->ahw->intr_tbl[i].id);
2583                         continue;
2584                 }
2585                 if (op_type) {
2586                         adapter->ahw->intr_tbl[i].id = MSW(val);
2587                         adapter->ahw->intr_tbl[i].enabled = 1;
2588                         temp = cmd.rsp.arg[index + 1];
2589                         adapter->ahw->intr_tbl[i].src = temp;
2590                 } else {
2591                         adapter->ahw->intr_tbl[i].id = i;
2592                         adapter->ahw->intr_tbl[i].enabled = 0;
2593                         adapter->ahw->intr_tbl[i].src = 0;
2594                 }
2595         }
2596 out:
2597         qlcnic_free_mbx_args(&cmd);
2598         return err;
2599 }
2600
2601 int qlcnic_83xx_lock_flash(struct qlcnic_adapter *adapter)
2602 {
2603         int id, timeout = 0;
2604         u32 status = 0;
2605
2606         while (status == 0) {
2607                 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_FLASH_LOCK);
2608                 if (status)
2609                         break;
2610
2611                 if (++timeout >= QLC_83XX_FLASH_LOCK_TIMEOUT) {
2612                         id = QLC_SHARED_REG_RD32(adapter,
2613                                                  QLCNIC_FLASH_LOCK_OWNER);
2614                         dev_err(&adapter->pdev->dev,
2615                                 "%s: failed, lock held by %d\n", __func__, id);
2616                         return -EIO;
2617                 }
2618                 usleep_range(1000, 2000);
2619         }
2620
2621         QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER, adapter->portnum);
2622         return 0;
2623 }
2624
2625 void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *adapter)
2626 {
2627         QLC_SHARED_REG_RD32(adapter, QLCNIC_FLASH_UNLOCK);
2628         QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER, 0xFF);
2629 }
2630
2631 int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *adapter,
2632                                       u32 flash_addr, u8 *p_data,
2633                                       int count)
2634 {
2635         u32 word, range, flash_offset, addr = flash_addr, ret;
2636         ulong indirect_add, direct_window;
2637         int i, err = 0;
2638
2639         flash_offset = addr & (QLCNIC_FLASH_SECTOR_SIZE - 1);
2640         if (addr & 0x3) {
2641                 dev_err(&adapter->pdev->dev, "Illegal addr = 0x%x\n", addr);
2642                 return -EIO;
2643         }
2644
2645         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_DIRECT_WINDOW,
2646                                      (addr & 0xFFFF0000));
2647
2648         range = flash_offset + (count * sizeof(u32));
2649         /* Check if data is spread across multiple sectors */
2650         if (range > (QLCNIC_FLASH_SECTOR_SIZE - 1)) {
2651
2652                 /* Multi sector read */
2653                 for (i = 0; i < count; i++) {
2654                         indirect_add = QLC_83XX_FLASH_DIRECT_DATA(addr);
2655                         ret = QLCRD32(adapter, indirect_add, &err);
2656                         if (err == -EIO)
2657                                 return err;
2658
2659                         word = ret;
2660                         *(u32 *)p_data  = word;
2661                         p_data = p_data + 4;
2662                         addr = addr + 4;
2663                         flash_offset = flash_offset + 4;
2664
2665                         if (flash_offset > (QLCNIC_FLASH_SECTOR_SIZE - 1)) {
2666                                 direct_window = QLC_83XX_FLASH_DIRECT_WINDOW;
2667                                 /* This write is needed once for each sector */
2668                                 qlcnic_83xx_wrt_reg_indirect(adapter,
2669                                                              direct_window,
2670                                                              (addr));
2671                                 flash_offset = 0;
2672                         }
2673                 }
2674         } else {
2675                 /* Single sector read */
2676                 for (i = 0; i < count; i++) {
2677                         indirect_add = QLC_83XX_FLASH_DIRECT_DATA(addr);
2678                         ret = QLCRD32(adapter, indirect_add, &err);
2679                         if (err == -EIO)
2680                                 return err;
2681
2682                         word = ret;
2683                         *(u32 *)p_data  = word;
2684                         p_data = p_data + 4;
2685                         addr = addr + 4;
2686                 }
2687         }
2688
2689         return 0;
2690 }
2691
2692 static int qlcnic_83xx_poll_flash_status_reg(struct qlcnic_adapter *adapter)
2693 {
2694         u32 status;
2695         int retries = QLC_83XX_FLASH_READ_RETRY_COUNT;
2696         int err = 0;
2697
2698         do {
2699                 status = QLCRD32(adapter, QLC_83XX_FLASH_STATUS, &err);
2700                 if (err == -EIO)
2701                         return err;
2702
2703                 if ((status & QLC_83XX_FLASH_STATUS_READY) ==
2704                     QLC_83XX_FLASH_STATUS_READY)
2705                         break;
2706
2707                 usleep_range(1000, 1100);
2708         } while (--retries);
2709
2710         if (!retries)
2711                 return -EIO;
2712
2713         return 0;
2714 }
2715
2716 int qlcnic_83xx_enable_flash_write(struct qlcnic_adapter *adapter)
2717 {
2718         int ret;
2719         u32 cmd;
2720         cmd = adapter->ahw->fdt.write_statusreg_cmd;
2721         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2722                                      (QLC_83XX_FLASH_FDT_WRITE_DEF_SIG | cmd));
2723         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2724                                      adapter->ahw->fdt.write_enable_bits);
2725         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2726                                      QLC_83XX_FLASH_SECOND_ERASE_MS_VAL);
2727         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2728         if (ret)
2729                 return -EIO;
2730
2731         return 0;
2732 }
2733
2734 int qlcnic_83xx_disable_flash_write(struct qlcnic_adapter *adapter)
2735 {
2736         int ret;
2737
2738         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2739                                      (QLC_83XX_FLASH_FDT_WRITE_DEF_SIG |
2740                                      adapter->ahw->fdt.write_statusreg_cmd));
2741         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2742                                      adapter->ahw->fdt.write_disable_bits);
2743         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2744                                      QLC_83XX_FLASH_SECOND_ERASE_MS_VAL);
2745         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2746         if (ret)
2747                 return -EIO;
2748
2749         return 0;
2750 }
2751
2752 int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *adapter)
2753 {
2754         int ret, err = 0;
2755         u32 mfg_id;
2756
2757         if (qlcnic_83xx_lock_flash(adapter))
2758                 return -EIO;
2759
2760         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2761                                      QLC_83XX_FLASH_FDT_READ_MFG_ID_VAL);
2762         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2763                                      QLC_83XX_FLASH_READ_CTRL);
2764         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2765         if (ret) {
2766                 qlcnic_83xx_unlock_flash(adapter);
2767                 return -EIO;
2768         }
2769
2770         mfg_id = QLCRD32(adapter, QLC_83XX_FLASH_RDDATA, &err);
2771         if (err == -EIO) {
2772                 qlcnic_83xx_unlock_flash(adapter);
2773                 return err;
2774         }
2775
2776         adapter->flash_mfg_id = (mfg_id & 0xFF);
2777         qlcnic_83xx_unlock_flash(adapter);
2778
2779         return 0;
2780 }
2781
2782 int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *adapter)
2783 {
2784         int count, fdt_size, ret = 0;
2785
2786         fdt_size = sizeof(struct qlcnic_fdt);
2787         count = fdt_size / sizeof(u32);
2788
2789         if (qlcnic_83xx_lock_flash(adapter))
2790                 return -EIO;
2791
2792         memset(&adapter->ahw->fdt, 0, fdt_size);
2793         ret = qlcnic_83xx_lockless_flash_read32(adapter, QLCNIC_FDT_LOCATION,
2794                                                 (u8 *)&adapter->ahw->fdt,
2795                                                 count);
2796         qlcnic_swap32_buffer((u32 *)&adapter->ahw->fdt, count);
2797         qlcnic_83xx_unlock_flash(adapter);
2798         return ret;
2799 }
2800
2801 int qlcnic_83xx_erase_flash_sector(struct qlcnic_adapter *adapter,
2802                                    u32 sector_start_addr)
2803 {
2804         u32 reversed_addr, addr1, addr2, cmd;
2805         int ret = -EIO;
2806
2807         if (qlcnic_83xx_lock_flash(adapter) != 0)
2808                 return -EIO;
2809
2810         if (adapter->ahw->fdt.mfg_id == adapter->flash_mfg_id) {
2811                 ret = qlcnic_83xx_enable_flash_write(adapter);
2812                 if (ret) {
2813                         qlcnic_83xx_unlock_flash(adapter);
2814                         dev_err(&adapter->pdev->dev,
2815                                 "%s failed at %d\n",
2816                                 __func__, __LINE__);
2817                         return ret;
2818                 }
2819         }
2820
2821         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2822         if (ret) {
2823                 qlcnic_83xx_unlock_flash(adapter);
2824                 dev_err(&adapter->pdev->dev,
2825                         "%s: failed at %d\n", __func__, __LINE__);
2826                 return -EIO;
2827         }
2828
2829         addr1 = (sector_start_addr & 0xFF) << 16;
2830         addr2 = (sector_start_addr & 0xFF0000) >> 16;
2831         reversed_addr = addr1 | addr2 | (sector_start_addr & 0xFF00);
2832
2833         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2834                                      reversed_addr);
2835         cmd = QLC_83XX_FLASH_FDT_ERASE_DEF_SIG | adapter->ahw->fdt.erase_cmd;
2836         if (adapter->ahw->fdt.mfg_id == adapter->flash_mfg_id)
2837                 qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR, cmd);
2838         else
2839                 qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2840                                              QLC_83XX_FLASH_OEM_ERASE_SIG);
2841         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2842                                      QLC_83XX_FLASH_LAST_ERASE_MS_VAL);
2843
2844         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2845         if (ret) {
2846                 qlcnic_83xx_unlock_flash(adapter);
2847                 dev_err(&adapter->pdev->dev,
2848                         "%s: failed at %d\n", __func__, __LINE__);
2849                 return -EIO;
2850         }
2851
2852         if (adapter->ahw->fdt.mfg_id == adapter->flash_mfg_id) {
2853                 ret = qlcnic_83xx_disable_flash_write(adapter);
2854                 if (ret) {
2855                         qlcnic_83xx_unlock_flash(adapter);
2856                         dev_err(&adapter->pdev->dev,
2857                                 "%s: failed at %d\n", __func__, __LINE__);
2858                         return ret;
2859                 }
2860         }
2861
2862         qlcnic_83xx_unlock_flash(adapter);
2863
2864         return 0;
2865 }
2866
2867 int qlcnic_83xx_flash_write32(struct qlcnic_adapter *adapter, u32 addr,
2868                               u32 *p_data)
2869 {
2870         int ret = -EIO;
2871         u32 addr1 = 0x00800000 | (addr >> 2);
2872
2873         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR, addr1);
2874         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data);
2875         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2876                                      QLC_83XX_FLASH_LAST_ERASE_MS_VAL);
2877         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2878         if (ret) {
2879                 dev_err(&adapter->pdev->dev,
2880                         "%s: failed at %d\n", __func__, __LINE__);
2881                 return -EIO;
2882         }
2883
2884         return 0;
2885 }
2886
2887 int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *adapter, u32 addr,
2888                                  u32 *p_data, int count)
2889 {
2890         u32 temp;
2891         int ret = -EIO, err = 0;
2892
2893         if ((count < QLC_83XX_FLASH_WRITE_MIN) ||
2894             (count > QLC_83XX_FLASH_WRITE_MAX)) {
2895                 dev_err(&adapter->pdev->dev,
2896                         "%s: Invalid word count\n", __func__);
2897                 return -EIO;
2898         }
2899
2900         temp = QLCRD32(adapter, QLC_83XX_FLASH_SPI_CONTROL, &err);
2901         if (err == -EIO)
2902                 return err;
2903
2904         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_SPI_CONTROL,
2905                                      (temp | QLC_83XX_FLASH_SPI_CTRL));
2906         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2907                                      QLC_83XX_FLASH_ADDR_TEMP_VAL);
2908
2909         /* First DWORD write */
2910         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data++);
2911         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2912                                      QLC_83XX_FLASH_FIRST_MS_PATTERN);
2913         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2914         if (ret) {
2915                 dev_err(&adapter->pdev->dev,
2916                         "%s: failed at %d\n", __func__, __LINE__);
2917                 return -EIO;
2918         }
2919
2920         count--;
2921         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2922                                      QLC_83XX_FLASH_ADDR_SECOND_TEMP_VAL);
2923         /* Second to N-1 DWORD writes */
2924         while (count != 1) {
2925                 qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2926                                              *p_data++);
2927                 qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2928                                              QLC_83XX_FLASH_SECOND_MS_PATTERN);
2929                 ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2930                 if (ret) {
2931                         dev_err(&adapter->pdev->dev,
2932                                 "%s: failed at %d\n", __func__, __LINE__);
2933                         return -EIO;
2934                 }
2935                 count--;
2936         }
2937
2938         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2939                                      QLC_83XX_FLASH_ADDR_TEMP_VAL |
2940                                      (addr >> 2));
2941         /* Last DWORD write */
2942         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data++);
2943         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2944                                      QLC_83XX_FLASH_LAST_MS_PATTERN);
2945         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2946         if (ret) {
2947                 dev_err(&adapter->pdev->dev,
2948                         "%s: failed at %d\n", __func__, __LINE__);
2949                 return -EIO;
2950         }
2951
2952         ret = QLCRD32(adapter, QLC_83XX_FLASH_SPI_STATUS, &err);
2953         if (err == -EIO)
2954                 return err;
2955
2956         if ((ret & QLC_83XX_FLASH_SPI_CTRL) == QLC_83XX_FLASH_SPI_CTRL) {
2957                 dev_err(&adapter->pdev->dev, "%s: failed at %d\n",
2958                         __func__, __LINE__);
2959                 /* Operation failed, clear error bit */
2960                 temp = QLCRD32(adapter, QLC_83XX_FLASH_SPI_CONTROL, &err);
2961                 if (err == -EIO)
2962                         return err;
2963
2964                 qlcnic_83xx_wrt_reg_indirect(adapter,
2965                                              QLC_83XX_FLASH_SPI_CONTROL,
2966                                              (temp | QLC_83XX_FLASH_SPI_CTRL));
2967         }
2968
2969         return 0;
2970 }
2971
2972 static void qlcnic_83xx_recover_driver_lock(struct qlcnic_adapter *adapter)
2973 {
2974         u32 val, id;
2975
2976         val = QLCRDX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK);
2977
2978         /* Check if recovery need to be performed by the calling function */
2979         if ((val & QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK) == 0) {
2980                 val = val & ~0x3F;
2981                 val = val | ((adapter->portnum << 2) |
2982                              QLC_83XX_NEED_DRV_LOCK_RECOVERY);
2983                 QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
2984                 dev_info(&adapter->pdev->dev,
2985                          "%s: lock recovery initiated\n", __func__);
2986                 msleep(QLC_83XX_DRV_LOCK_RECOVERY_DELAY);
2987                 val = QLCRDX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK);
2988                 id = ((val >> 2) & 0xF);
2989                 if (id == adapter->portnum) {
2990                         val = val & ~QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK;
2991                         val = val | QLC_83XX_DRV_LOCK_RECOVERY_IN_PROGRESS;
2992                         QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
2993                         /* Force release the lock */
2994                         QLCRDX(adapter->ahw, QLC_83XX_DRV_UNLOCK);
2995                         /* Clear recovery bits */
2996                         val = val & ~0x3F;
2997                         QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
2998                         dev_info(&adapter->pdev->dev,
2999                                  "%s: lock recovery completed\n", __func__);
3000                 } else {
3001                         dev_info(&adapter->pdev->dev,
3002                                  "%s: func %d to resume lock recovery process\n",
3003                                  __func__, id);
3004                 }
3005         } else {
3006                 dev_info(&adapter->pdev->dev,
3007                          "%s: lock recovery initiated by other functions\n",
3008                          __func__);
3009         }
3010 }
3011
3012 int qlcnic_83xx_lock_driver(struct qlcnic_adapter *adapter)
3013 {
3014         u32 lock_alive_counter, val, id, i = 0, status = 0, temp = 0;
3015         int max_attempt = 0;
3016
3017         while (status == 0) {
3018                 status = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK);
3019                 if (status)
3020                         break;
3021
3022                 msleep(QLC_83XX_DRV_LOCK_WAIT_DELAY);
3023                 i++;
3024
3025                 if (i == 1)
3026                         temp = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3027
3028                 if (i == QLC_83XX_DRV_LOCK_WAIT_COUNTER) {
3029                         val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3030                         if (val == temp) {
3031                                 id = val & 0xFF;
3032                                 dev_info(&adapter->pdev->dev,
3033                                          "%s: lock to be recovered from %d\n",
3034                                          __func__, id);
3035                                 qlcnic_83xx_recover_driver_lock(adapter);
3036                                 i = 0;
3037                                 max_attempt++;
3038                         } else {
3039                                 dev_err(&adapter->pdev->dev,
3040                                         "%s: failed to get lock\n", __func__);
3041                                 return -EIO;
3042                         }
3043                 }
3044
3045                 /* Force exit from while loop after few attempts */
3046                 if (max_attempt == QLC_83XX_MAX_DRV_LOCK_RECOVERY_ATTEMPT) {
3047                         dev_err(&adapter->pdev->dev,
3048                                 "%s: failed to get lock\n", __func__);
3049                         return -EIO;
3050                 }
3051         }
3052
3053         val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3054         lock_alive_counter = val >> 8;
3055         lock_alive_counter++;
3056         val = lock_alive_counter << 8 | adapter->portnum;
3057         QLCWRX(adapter->ahw, QLC_83XX_DRV_LOCK_ID, val);
3058
3059         return 0;
3060 }
3061
3062 void qlcnic_83xx_unlock_driver(struct qlcnic_adapter *adapter)
3063 {
3064         u32 val, lock_alive_counter, id;
3065
3066         val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3067         id = val & 0xFF;
3068         lock_alive_counter = val >> 8;
3069
3070         if (id != adapter->portnum)
3071                 dev_err(&adapter->pdev->dev,
3072                         "%s:Warning func %d is unlocking lock owned by %d\n",
3073                         __func__, adapter->portnum, id);
3074
3075         val = (lock_alive_counter << 8) | 0xFF;
3076         QLCWRX(adapter->ahw, QLC_83XX_DRV_LOCK_ID, val);
3077         QLCRDX(adapter->ahw, QLC_83XX_DRV_UNLOCK);
3078 }
3079
3080 int qlcnic_ms_mem_write128(struct qlcnic_adapter *adapter, u64 addr,
3081                                 u32 *data, u32 count)
3082 {
3083         int i, j, ret = 0;
3084         u32 temp;
3085
3086         /* Check alignment */
3087         if (addr & 0xF)
3088                 return -EIO;
3089
3090         mutex_lock(&adapter->ahw->mem_lock);
3091         qlcnic_ind_wr(adapter, QLCNIC_MS_ADDR_HI, 0);
3092
3093         for (i = 0; i < count; i++, addr += 16) {
3094                 if (!((ADDR_IN_RANGE(addr, QLCNIC_ADDR_QDR_NET,
3095                                      QLCNIC_ADDR_QDR_NET_MAX)) ||
3096                       (ADDR_IN_RANGE(addr, QLCNIC_ADDR_DDR_NET,
3097                                      QLCNIC_ADDR_DDR_NET_MAX)))) {
3098                         mutex_unlock(&adapter->ahw->mem_lock);
3099                         return -EIO;
3100                 }
3101
3102                 qlcnic_ind_wr(adapter, QLCNIC_MS_ADDR_LO, addr);
3103                 qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_LO, *data++);
3104                 qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_HI, *data++);
3105                 qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_ULO, *data++);
3106                 qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_UHI, *data++);
3107                 qlcnic_ind_wr(adapter, QLCNIC_MS_CTRL, QLCNIC_TA_WRITE_ENABLE);
3108                 qlcnic_ind_wr(adapter, QLCNIC_MS_CTRL, QLCNIC_TA_WRITE_START);
3109
3110                 for (j = 0; j < MAX_CTL_CHECK; j++) {
3111                         temp = qlcnic_ind_rd(adapter, QLCNIC_MS_CTRL);
3112
3113                         if ((temp & TA_CTL_BUSY) == 0)
3114                                 break;
3115                 }
3116
3117                 /* Status check failure */
3118                 if (j >= MAX_CTL_CHECK) {
3119                         printk_ratelimited(KERN_WARNING
3120                                            "MS memory write failed\n");
3121                         mutex_unlock(&adapter->ahw->mem_lock);
3122                         return -EIO;
3123                 }
3124         }
3125
3126         mutex_unlock(&adapter->ahw->mem_lock);
3127
3128         return ret;
3129 }
3130
3131 int qlcnic_83xx_flash_read32(struct qlcnic_adapter *adapter, u32 flash_addr,
3132                              u8 *p_data, int count)
3133 {
3134         u32 word, addr = flash_addr, ret;
3135         ulong  indirect_addr;
3136         int i, err = 0;
3137
3138         if (qlcnic_83xx_lock_flash(adapter) != 0)
3139                 return -EIO;
3140
3141         if (addr & 0x3) {
3142                 dev_err(&adapter->pdev->dev, "Illegal addr = 0x%x\n", addr);
3143                 qlcnic_83xx_unlock_flash(adapter);
3144                 return -EIO;
3145         }
3146
3147         for (i = 0; i < count; i++) {
3148                 if (qlcnic_83xx_wrt_reg_indirect(adapter,
3149                                                  QLC_83XX_FLASH_DIRECT_WINDOW,
3150                                                  (addr))) {
3151                         qlcnic_83xx_unlock_flash(adapter);
3152                         return -EIO;
3153                 }
3154
3155                 indirect_addr = QLC_83XX_FLASH_DIRECT_DATA(addr);
3156                 ret = QLCRD32(adapter, indirect_addr, &err);
3157                 if (err == -EIO)
3158                         return err;
3159
3160                 word = ret;
3161                 *(u32 *)p_data  = word;
3162                 p_data = p_data + 4;
3163                 addr = addr + 4;
3164         }
3165
3166         qlcnic_83xx_unlock_flash(adapter);
3167
3168         return 0;
3169 }
3170
3171 void qlcnic_83xx_get_port_type(struct qlcnic_adapter *adapter)
3172 {
3173         struct qlcnic_hardware_context *ahw = adapter->ahw;
3174         struct qlcnic_cmd_args cmd;
3175         u32 config;
3176         int err;
3177
3178         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
3179         if (err)
3180                 return;
3181
3182         err = qlcnic_issue_cmd(adapter, &cmd);
3183         if (err) {
3184                 dev_info(&adapter->pdev->dev,
3185                          "Get Link Status Command failed: 0x%x\n", err);
3186                 goto out;
3187         } else {
3188                 config = cmd.rsp.arg[3];
3189
3190                 switch (QLC_83XX_SFP_MODULE_TYPE(config)) {
3191                 case QLC_83XX_MODULE_FIBRE_1000BASE_SX:
3192                 case QLC_83XX_MODULE_FIBRE_1000BASE_LX:
3193                 case QLC_83XX_MODULE_FIBRE_1000BASE_CX:
3194                 case QLC_83XX_MODULE_TP_1000BASE_T:
3195                         ahw->port_type = QLCNIC_GBE;
3196                         break;
3197                 default:
3198                         ahw->port_type = QLCNIC_XGBE;
3199                 }
3200         }
3201 out:
3202         qlcnic_free_mbx_args(&cmd);
3203 }
3204
3205 int qlcnic_83xx_test_link(struct qlcnic_adapter *adapter)
3206 {
3207         u8 pci_func;
3208         int err;
3209         u32 config = 0, state;
3210         struct qlcnic_cmd_args cmd;
3211         struct qlcnic_hardware_context *ahw = adapter->ahw;
3212
3213         if (qlcnic_sriov_vf_check(adapter))
3214                 pci_func = adapter->portnum;
3215         else
3216                 pci_func = ahw->pci_func;
3217
3218         state = readl(ahw->pci_base0 + QLC_83XX_LINK_STATE(pci_func));
3219         if (!QLC_83xx_FUNC_VAL(state, pci_func)) {
3220                 dev_info(&adapter->pdev->dev, "link state down\n");
3221                 return config;
3222         }
3223
3224         err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
3225         if (err)
3226                 return err;
3227
3228         err = qlcnic_issue_cmd(adapter, &cmd);
3229         if (err) {
3230                 dev_info(&adapter->pdev->dev,
3231                          "Get Link Status Command failed: 0x%x\n", err);
3232                 goto out;
3233         } else {
3234                 config = cmd.rsp.arg[1];
3235                 switch (QLC_83XX_CURRENT_LINK_SPEED(config)) {
3236                 case QLC_83XX_10M_LINK:
3237                         ahw->link_speed = SPEED_10;
3238                         break;
3239                 case QLC_83XX_100M_LINK:
3240                         ahw->link_speed = SPEED_100;
3241                         break;
3242                 case QLC_83XX_1G_LINK:
3243                         ahw->link_speed = SPEED_1000;
3244                         break;
3245                 case QLC_83XX_10G_LINK:
3246                         ahw->link_speed = SPEED_10000;
3247                         break;
3248                 default:
3249                         ahw->link_speed = 0;
3250                         break;
3251                 }
3252                 config = cmd.rsp.arg[3];
3253                 switch (QLC_83XX_SFP_MODULE_TYPE(config)) {
3254                 case QLC_83XX_MODULE_FIBRE_10GBASE_LRM:
3255                 case QLC_83XX_MODULE_FIBRE_10GBASE_LR:
3256                 case QLC_83XX_MODULE_FIBRE_10GBASE_SR:
3257                         ahw->supported_type = PORT_FIBRE;
3258                         ahw->port_type = QLCNIC_XGBE;
3259                         break;
3260                 case QLC_83XX_MODULE_FIBRE_1000BASE_SX:
3261                 case QLC_83XX_MODULE_FIBRE_1000BASE_LX:
3262                 case QLC_83XX_MODULE_FIBRE_1000BASE_CX:
3263                         ahw->supported_type = PORT_FIBRE;
3264                         ahw->port_type = QLCNIC_GBE;
3265                         break;
3266                 case QLC_83XX_MODULE_TP_1000BASE_T:
3267                         ahw->supported_type = PORT_TP;
3268                         ahw->port_type = QLCNIC_GBE;
3269                         break;
3270                 case QLC_83XX_MODULE_DA_10GE_PASSIVE_CP:
3271                 case QLC_83XX_MODULE_DA_10GE_ACTIVE_CP:
3272                 case QLC_83XX_MODULE_DA_10GE_LEGACY_CP:
3273                 case QLC_83XX_MODULE_DA_1GE_PASSIVE_CP:
3274                         ahw->supported_type = PORT_DA;
3275                         ahw->port_type = QLCNIC_XGBE;
3276                         break;
3277                 default:
3278                         ahw->supported_type = PORT_OTHER;
3279                         ahw->port_type = QLCNIC_XGBE;
3280                 }
3281                 if (config & 1)
3282                         err = 1;
3283         }
3284 out:
3285         qlcnic_free_mbx_args(&cmd);
3286         return config;
3287 }
3288
3289 int qlcnic_83xx_get_link_ksettings(struct qlcnic_adapter *adapter,
3290                                    struct ethtool_link_ksettings *ecmd)
3291 {
3292         struct qlcnic_hardware_context *ahw = adapter->ahw;
3293         u32 config = 0;
3294         int status = 0;
3295         u32 supported, advertising;
3296
3297         if (!test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3298                 /* Get port configuration info */
3299                 status = qlcnic_83xx_get_port_info(adapter);
3300                 /* Get Link Status related info */
3301                 config = qlcnic_83xx_test_link(adapter);
3302                 ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config);
3303         }
3304
3305         /* hard code until there is a way to get it from flash */
3306         ahw->board_type = QLCNIC_BRDTYPE_83XX_10G;
3307
3308         if (netif_running(adapter->netdev) && ahw->has_link_events) {
3309                 ecmd->base.speed = ahw->link_speed;
3310                 ecmd->base.duplex = ahw->link_duplex;
3311                 ecmd->base.autoneg = ahw->link_autoneg;
3312         } else {
3313                 ecmd->base.speed = SPEED_UNKNOWN;
3314                 ecmd->base.duplex = DUPLEX_UNKNOWN;
3315                 ecmd->base.autoneg = AUTONEG_DISABLE;
3316         }
3317
3318         supported = (SUPPORTED_10baseT_Full |
3319                            SUPPORTED_100baseT_Full |
3320                            SUPPORTED_1000baseT_Full |
3321                            SUPPORTED_10000baseT_Full |
3322                            SUPPORTED_Autoneg);
3323
3324         ethtool_convert_link_mode_to_legacy_u32(&advertising,
3325                                                 ecmd->link_modes.advertising);
3326
3327         if (ecmd->base.autoneg == AUTONEG_ENABLE) {
3328                 if (ahw->port_config & QLC_83XX_10_CAPABLE)
3329                         advertising |= SUPPORTED_10baseT_Full;
3330                 if (ahw->port_config & QLC_83XX_100_CAPABLE)
3331                         advertising |= SUPPORTED_100baseT_Full;
3332                 if (ahw->port_config & QLC_83XX_1G_CAPABLE)
3333                         advertising |= SUPPORTED_1000baseT_Full;
3334                 if (ahw->port_config & QLC_83XX_10G_CAPABLE)
3335                         advertising |= SUPPORTED_10000baseT_Full;
3336                 if (ahw->port_config & QLC_83XX_AUTONEG_ENABLE)
3337                         advertising |= ADVERTISED_Autoneg;
3338         } else {
3339                 switch (ahw->link_speed) {
3340                 case SPEED_10:
3341                         advertising = SUPPORTED_10baseT_Full;
3342                         break;
3343                 case SPEED_100:
3344                         advertising = SUPPORTED_100baseT_Full;
3345                         break;
3346                 case SPEED_1000:
3347                         advertising = SUPPORTED_1000baseT_Full;
3348                         break;
3349                 case SPEED_10000:
3350                         advertising = SUPPORTED_10000baseT_Full;
3351                         break;
3352                 default:
3353                         break;
3354                 }
3355
3356         }
3357
3358         switch (ahw->supported_type) {
3359         case PORT_FIBRE:
3360                 supported |= SUPPORTED_FIBRE;
3361                 advertising |= ADVERTISED_FIBRE;
3362                 ecmd->base.port = PORT_FIBRE;
3363                 break;
3364         case PORT_TP:
3365                 supported |= SUPPORTED_TP;
3366                 advertising |= ADVERTISED_TP;
3367                 ecmd->base.port = PORT_TP;
3368                 break;
3369         case PORT_DA:
3370                 supported |= SUPPORTED_FIBRE;
3371                 advertising |= ADVERTISED_FIBRE;
3372                 ecmd->base.port = PORT_DA;
3373                 break;
3374         default:
3375                 supported |= SUPPORTED_FIBRE;
3376                 advertising |= ADVERTISED_FIBRE;
3377                 ecmd->base.port = PORT_OTHER;
3378                 break;
3379         }
3380         ecmd->base.phy_address = ahw->physical_port;
3381
3382         ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
3383                                                 supported);
3384         ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.advertising,
3385                                                 advertising);
3386
3387         return status;
3388 }
3389
3390 int qlcnic_83xx_set_link_ksettings(struct qlcnic_adapter *adapter,
3391                                    const struct ethtool_link_ksettings *ecmd)
3392 {
3393         struct qlcnic_hardware_context *ahw = adapter->ahw;
3394         u32 config = adapter->ahw->port_config;
3395         int status = 0;
3396
3397         /* 83xx devices do not support Half duplex */
3398         if (ecmd->base.duplex == DUPLEX_HALF) {
3399                 netdev_info(adapter->netdev,
3400                             "Half duplex mode not supported\n");
3401                 return -EINVAL;
3402         }
3403
3404         if (ecmd->base.autoneg) {
3405                 ahw->port_config |= QLC_83XX_AUTONEG_ENABLE;
3406                 ahw->port_config |= (QLC_83XX_100_CAPABLE |
3407                                      QLC_83XX_1G_CAPABLE |
3408                                      QLC_83XX_10G_CAPABLE);
3409         } else { /* force speed */
3410                 ahw->port_config &= ~QLC_83XX_AUTONEG_ENABLE;
3411                 switch (ecmd->base.speed) {
3412                 case SPEED_10:
3413                         ahw->port_config &= ~(QLC_83XX_100_CAPABLE |
3414                                               QLC_83XX_1G_CAPABLE |
3415                                               QLC_83XX_10G_CAPABLE);
3416                         ahw->port_config |= QLC_83XX_10_CAPABLE;
3417                         break;
3418                 case SPEED_100:
3419                         ahw->port_config &= ~(QLC_83XX_10_CAPABLE |
3420                                               QLC_83XX_1G_CAPABLE |
3421                                               QLC_83XX_10G_CAPABLE);
3422                         ahw->port_config |= QLC_83XX_100_CAPABLE;
3423                         break;
3424                 case SPEED_1000:
3425                         ahw->port_config &= ~(QLC_83XX_10_CAPABLE |
3426                                               QLC_83XX_100_CAPABLE |
3427                                               QLC_83XX_10G_CAPABLE);
3428                         ahw->port_config |= QLC_83XX_1G_CAPABLE;
3429                         break;
3430                 case SPEED_10000:
3431                         ahw->port_config &= ~(QLC_83XX_10_CAPABLE |
3432                                               QLC_83XX_100_CAPABLE |
3433                                               QLC_83XX_1G_CAPABLE);
3434                         ahw->port_config |= QLC_83XX_10G_CAPABLE;
3435                         break;
3436                 default:
3437                         return -EINVAL;
3438                 }
3439         }
3440         status = qlcnic_83xx_set_port_config(adapter);
3441         if (status) {
3442                 netdev_info(adapter->netdev,
3443                             "Failed to Set Link Speed and autoneg.\n");
3444                 ahw->port_config = config;
3445         }
3446
3447         return status;
3448 }
3449
3450 static inline u64 *qlcnic_83xx_copy_stats(struct qlcnic_cmd_args *cmd,
3451                                           u64 *data, int index)
3452 {
3453         u32 low, hi;
3454         u64 val;
3455
3456         low = cmd->rsp.arg[index];
3457         hi = cmd->rsp.arg[index + 1];
3458         val = (((u64) low) | (((u64) hi) << 32));
3459         *data++ = val;
3460         return data;
3461 }
3462
3463 static u64 *qlcnic_83xx_fill_stats(struct qlcnic_adapter *adapter,
3464                                    struct qlcnic_cmd_args *cmd, u64 *data,
3465                                    int type, int *ret)
3466 {
3467         int err, k, total_regs;
3468
3469         *ret = 0;
3470         err = qlcnic_issue_cmd(adapter, cmd);
3471         if (err != QLCNIC_RCODE_SUCCESS) {
3472                 dev_info(&adapter->pdev->dev,
3473                          "Error in get statistics mailbox command\n");
3474                 *ret = -EIO;
3475                 return data;
3476         }
3477         total_regs = cmd->rsp.num;
3478         switch (type) {
3479         case QLC_83XX_STAT_MAC:
3480                 /* fill in MAC tx counters */
3481                 for (k = 2; k < 28; k += 2)
3482                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3483                 /* skip 24 bytes of reserved area */
3484                 /* fill in MAC rx counters */
3485                 for (k += 6; k < 60; k += 2)
3486                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3487                 /* skip 24 bytes of reserved area */
3488                 /* fill in MAC rx frame stats */
3489                 for (k += 6; k < 80; k += 2)
3490                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3491                 /* fill in eSwitch stats */
3492                 for (; k < total_regs; k += 2)
3493                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3494                 break;
3495         case QLC_83XX_STAT_RX:
3496                 for (k = 2; k < 8; k += 2)
3497                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3498                 /* skip 8 bytes of reserved data */
3499                 for (k += 2; k < 24; k += 2)
3500                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3501                 /* skip 8 bytes containing RE1FBQ error data */
3502                 for (k += 2; k < total_regs; k += 2)
3503                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3504                 break;
3505         case QLC_83XX_STAT_TX:
3506                 for (k = 2; k < 10; k += 2)
3507                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3508                 /* skip 8 bytes of reserved data */
3509                 for (k += 2; k < total_regs; k += 2)
3510                         data = qlcnic_83xx_copy_stats(cmd, data, k);
3511                 break;
3512         default:
3513                 dev_warn(&adapter->pdev->dev, "Unknown get statistics mode\n");
3514                 *ret = -EIO;
3515         }
3516         return data;
3517 }
3518
3519 void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data)
3520 {
3521         struct qlcnic_cmd_args cmd;
3522         struct net_device *netdev = adapter->netdev;
3523         int ret = 0;
3524
3525         ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_STATISTICS);
3526         if (ret)
3527                 return;
3528         /* Get Tx stats */
3529         cmd.req.arg[1] = BIT_1 | (adapter->tx_ring->ctx_id << 16);
3530         cmd.rsp.num = QLC_83XX_TX_STAT_REGS;
3531         data = qlcnic_83xx_fill_stats(adapter, &cmd, data,
3532                                       QLC_83XX_STAT_TX, &ret);
3533         if (ret) {
3534                 netdev_err(netdev, "Error getting Tx stats\n");
3535                 goto out;
3536         }
3537         /* Get MAC stats */
3538         cmd.req.arg[1] = BIT_2 | (adapter->portnum << 16);
3539         cmd.rsp.num = QLC_83XX_MAC_STAT_REGS;
3540         memset(cmd.rsp.arg, 0, sizeof(u32) * cmd.rsp.num);
3541         data = qlcnic_83xx_fill_stats(adapter, &cmd, data,
3542                                       QLC_83XX_STAT_MAC, &ret);
3543         if (ret) {
3544                 netdev_err(netdev, "Error getting MAC stats\n");
3545                 goto out;
3546         }
3547         /* Get Rx stats */
3548         cmd.req.arg[1] = adapter->recv_ctx->context_id << 16;
3549         cmd.rsp.num = QLC_83XX_RX_STAT_REGS;
3550         memset(cmd.rsp.arg, 0, sizeof(u32) * cmd.rsp.num);
3551         data = qlcnic_83xx_fill_stats(adapter, &cmd, data,
3552                                       QLC_83XX_STAT_RX, &ret);
3553         if (ret)
3554                 netdev_err(netdev, "Error getting Rx stats\n");
3555 out:
3556         qlcnic_free_mbx_args(&cmd);
3557 }
3558
3559 #define QLCNIC_83XX_ADD_PORT0           BIT_0
3560 #define QLCNIC_83XX_ADD_PORT1           BIT_1
3561 #define QLCNIC_83XX_EXTENDED_MEM_SIZE   13 /* In MB */
3562 int qlcnic_83xx_extend_md_capab(struct qlcnic_adapter *adapter)
3563 {
3564         struct qlcnic_cmd_args cmd;
3565         int err;
3566
3567         err = qlcnic_alloc_mbx_args(&cmd, adapter,
3568                                     QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP);
3569         if (err)
3570                 return err;
3571
3572         cmd.req.arg[1] = (QLCNIC_83XX_ADD_PORT0 | QLCNIC_83XX_ADD_PORT1);
3573         cmd.req.arg[2] = QLCNIC_83XX_EXTENDED_MEM_SIZE;
3574         cmd.req.arg[3] = QLCNIC_83XX_EXTENDED_MEM_SIZE;
3575
3576         err = qlcnic_issue_cmd(adapter, &cmd);
3577         if (err)
3578                 dev_err(&adapter->pdev->dev,
3579                         "failed to issue extend iSCSI minidump capability\n");
3580
3581         return err;
3582 }
3583
3584 int qlcnic_83xx_reg_test(struct qlcnic_adapter *adapter)
3585 {
3586         u32 major, minor, sub;
3587
3588         major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
3589         minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
3590         sub = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
3591
3592         if (adapter->fw_version != QLCNIC_VERSION_CODE(major, minor, sub)) {
3593                 dev_info(&adapter->pdev->dev, "%s: Reg test failed\n",
3594                          __func__);
3595                 return 1;
3596         }
3597         return 0;
3598 }
3599
3600 inline int qlcnic_83xx_get_regs_len(struct qlcnic_adapter *adapter)
3601 {
3602         return (ARRAY_SIZE(qlcnic_83xx_ext_reg_tbl) *
3603                 sizeof(*adapter->ahw->ext_reg_tbl)) +
3604                 (ARRAY_SIZE(qlcnic_83xx_reg_tbl) *
3605                 sizeof(*adapter->ahw->reg_tbl));
3606 }
3607
3608 int qlcnic_83xx_get_registers(struct qlcnic_adapter *adapter, u32 *regs_buff)
3609 {
3610         int i, j = 0;
3611
3612         for (i = QLCNIC_DEV_INFO_SIZE + 1;
3613              j < ARRAY_SIZE(qlcnic_83xx_reg_tbl); i++, j++)
3614                 regs_buff[i] = QLC_SHARED_REG_RD32(adapter, j);
3615
3616         for (j = 0; j < ARRAY_SIZE(qlcnic_83xx_ext_reg_tbl); j++)
3617                 regs_buff[i++] = QLCRDX(adapter->ahw, j);
3618         return i;
3619 }
3620
3621 int qlcnic_83xx_interrupt_test(struct net_device *netdev)
3622 {
3623         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3624         struct qlcnic_hardware_context *ahw = adapter->ahw;
3625         struct qlcnic_cmd_args cmd;
3626         u8 val, drv_sds_rings = adapter->drv_sds_rings;
3627         u8 drv_tx_rings = adapter->drv_tx_rings;
3628         u32 data;
3629         u16 intrpt_id, id;
3630         int ret;
3631
3632         if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
3633                 netdev_info(netdev, "Device is resetting\n");
3634                 return -EBUSY;
3635         }
3636
3637         if (qlcnic_get_diag_lock(adapter)) {
3638                 netdev_info(netdev, "Device in diagnostics mode\n");
3639                 return -EBUSY;
3640         }
3641
3642         ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST,
3643                                          drv_sds_rings);
3644         if (ret)
3645                 goto fail_diag_irq;
3646
3647         ahw->diag_cnt = 0;
3648         ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INTRPT_TEST);
3649         if (ret)
3650                 goto fail_diag_irq;
3651
3652         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3653                 intrpt_id = ahw->intr_tbl[0].id;
3654         else
3655                 intrpt_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
3656
3657         cmd.req.arg[1] = 1;
3658         cmd.req.arg[2] = intrpt_id;
3659         cmd.req.arg[3] = BIT_0;
3660
3661         ret = qlcnic_issue_cmd(adapter, &cmd);
3662         data = cmd.rsp.arg[2];
3663         id = LSW(data);
3664         val = LSB(MSW(data));
3665         if (id != intrpt_id)
3666                 dev_info(&adapter->pdev->dev,
3667                          "Interrupt generated: 0x%x, requested:0x%x\n",
3668                          id, intrpt_id);
3669         if (val)
3670                 dev_err(&adapter->pdev->dev,
3671                          "Interrupt test error: 0x%x\n", val);
3672         if (ret)
3673                 goto done;
3674
3675         msleep(20);
3676         ret = !ahw->diag_cnt;
3677
3678 done:
3679         qlcnic_free_mbx_args(&cmd);
3680         qlcnic_83xx_diag_free_res(netdev, drv_sds_rings);
3681
3682 fail_diag_irq:
3683         adapter->drv_sds_rings = drv_sds_rings;
3684         adapter->drv_tx_rings = drv_tx_rings;
3685         qlcnic_release_diag_lock(adapter);
3686         return ret;
3687 }
3688
3689 void qlcnic_83xx_get_pauseparam(struct qlcnic_adapter *adapter,
3690                                 struct ethtool_pauseparam *pause)
3691 {
3692         struct qlcnic_hardware_context *ahw = adapter->ahw;
3693         int status = 0;
3694         u32 config;
3695
3696         status = qlcnic_83xx_get_port_config(adapter);
3697         if (status) {
3698                 dev_err(&adapter->pdev->dev,
3699                         "%s: Get Pause Config failed\n", __func__);
3700                 return;
3701         }
3702         config = ahw->port_config;
3703         if (config & QLC_83XX_CFG_STD_PAUSE) {
3704                 switch (MSW(config)) {
3705                 case QLC_83XX_TX_PAUSE:
3706                         pause->tx_pause = 1;
3707                         break;
3708                 case QLC_83XX_RX_PAUSE:
3709                         pause->rx_pause = 1;
3710                         break;
3711                 case QLC_83XX_TX_RX_PAUSE:
3712                 default:
3713                         /* Backward compatibility for existing
3714                          * flash definitions
3715                          */
3716                         pause->tx_pause = 1;
3717                         pause->rx_pause = 1;
3718                 }
3719         }
3720
3721         if (QLC_83XX_AUTONEG(config))
3722                 pause->autoneg = 1;
3723 }
3724
3725 int qlcnic_83xx_set_pauseparam(struct qlcnic_adapter *adapter,
3726                                struct ethtool_pauseparam *pause)
3727 {
3728         struct qlcnic_hardware_context *ahw = adapter->ahw;
3729         int status = 0;
3730         u32 config;
3731
3732         status = qlcnic_83xx_get_port_config(adapter);
3733         if (status) {
3734                 dev_err(&adapter->pdev->dev,
3735                         "%s: Get Pause Config failed.\n", __func__);
3736                 return status;
3737         }
3738         config = ahw->port_config;
3739
3740         if (ahw->port_type == QLCNIC_GBE) {
3741                 if (pause->autoneg)
3742                         ahw->port_config |= QLC_83XX_ENABLE_AUTONEG;
3743                 if (!pause->autoneg)
3744                         ahw->port_config &= ~QLC_83XX_ENABLE_AUTONEG;
3745         } else if ((ahw->port_type == QLCNIC_XGBE) && (pause->autoneg)) {
3746                 return -EOPNOTSUPP;
3747         }
3748
3749         if (!(config & QLC_83XX_CFG_STD_PAUSE))
3750                 ahw->port_config |= QLC_83XX_CFG_STD_PAUSE;
3751
3752         if (pause->rx_pause && pause->tx_pause) {
3753                 ahw->port_config |= QLC_83XX_CFG_STD_TX_RX_PAUSE;
3754         } else if (pause->rx_pause && !pause->tx_pause) {
3755                 ahw->port_config &= ~QLC_83XX_CFG_STD_TX_PAUSE;
3756                 ahw->port_config |= QLC_83XX_CFG_STD_RX_PAUSE;
3757         } else if (pause->tx_pause && !pause->rx_pause) {
3758                 ahw->port_config &= ~QLC_83XX_CFG_STD_RX_PAUSE;
3759                 ahw->port_config |= QLC_83XX_CFG_STD_TX_PAUSE;
3760         } else if (!pause->rx_pause && !pause->tx_pause) {
3761                 ahw->port_config &= ~(QLC_83XX_CFG_STD_TX_RX_PAUSE |
3762                                       QLC_83XX_CFG_STD_PAUSE);
3763         }
3764         status = qlcnic_83xx_set_port_config(adapter);
3765         if (status) {
3766                 dev_err(&adapter->pdev->dev,
3767                         "%s: Set Pause Config failed.\n", __func__);
3768                 ahw->port_config = config;
3769         }
3770         return status;
3771 }
3772
3773 static int qlcnic_83xx_read_flash_status_reg(struct qlcnic_adapter *adapter)
3774 {
3775         int ret, err = 0;
3776         u32 temp;
3777
3778         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
3779                                      QLC_83XX_FLASH_OEM_READ_SIG);
3780         qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
3781                                      QLC_83XX_FLASH_READ_CTRL);
3782         ret = qlcnic_83xx_poll_flash_status_reg(adapter);
3783         if (ret)
3784                 return -EIO;
3785
3786         temp = QLCRD32(adapter, QLC_83XX_FLASH_RDDATA, &err);
3787         if (err == -EIO)
3788                 return err;
3789
3790         return temp & 0xFF;
3791 }
3792
3793 int qlcnic_83xx_flash_test(struct qlcnic_adapter *adapter)
3794 {
3795         int status;
3796
3797         status = qlcnic_83xx_read_flash_status_reg(adapter);
3798         if (status == -EIO) {
3799                 dev_info(&adapter->pdev->dev, "%s: EEPROM test failed.\n",
3800                          __func__);
3801                 return 1;
3802         }
3803         return 0;
3804 }
3805
3806 static int qlcnic_83xx_shutdown(struct pci_dev *pdev)
3807 {
3808         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3809         struct net_device *netdev = adapter->netdev;
3810         int retval;
3811
3812         netif_device_detach(netdev);
3813         qlcnic_cancel_idc_work(adapter);
3814
3815         if (netif_running(netdev))
3816                 qlcnic_down(adapter, netdev);
3817
3818         qlcnic_83xx_disable_mbx_intr(adapter);
3819         cancel_delayed_work_sync(&adapter->idc_aen_work);
3820
3821         retval = pci_save_state(pdev);
3822         if (retval)
3823                 return retval;
3824
3825         return 0;
3826 }
3827
3828 static int qlcnic_83xx_resume(struct qlcnic_adapter *adapter)
3829 {
3830         struct qlcnic_hardware_context *ahw = adapter->ahw;
3831         struct qlc_83xx_idc *idc = &ahw->idc;
3832         int err = 0;
3833
3834         err = qlcnic_83xx_idc_init(adapter);
3835         if (err)
3836                 return err;
3837
3838         if (ahw->nic_mode == QLCNIC_VNIC_MODE) {
3839                 if (ahw->op_mode == QLCNIC_MGMT_FUNC) {
3840                         qlcnic_83xx_set_vnic_opmode(adapter);
3841                 } else {
3842                         err = qlcnic_83xx_check_vnic_state(adapter);
3843                         if (err)
3844                                 return err;
3845                 }
3846         }
3847
3848         err = qlcnic_83xx_idc_reattach_driver(adapter);
3849         if (err)
3850                 return err;
3851
3852         qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
3853                              idc->delay);
3854         return err;
3855 }
3856
3857 void qlcnic_83xx_reinit_mbx_work(struct qlcnic_mailbox *mbx)
3858 {
3859         reinit_completion(&mbx->completion);
3860         set_bit(QLC_83XX_MBX_READY, &mbx->status);
3861 }
3862
3863 void qlcnic_83xx_free_mailbox(struct qlcnic_mailbox *mbx)
3864 {
3865         if (!mbx)
3866                 return;
3867
3868         destroy_workqueue(mbx->work_q);
3869         kfree(mbx);
3870 }
3871
3872 static inline void
3873 qlcnic_83xx_notify_cmd_completion(struct qlcnic_adapter *adapter,
3874                                   struct qlcnic_cmd_args *cmd)
3875 {
3876         atomic_set(&cmd->rsp_status, QLC_83XX_MBX_RESPONSE_ARRIVED);
3877
3878         if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) {
3879                 qlcnic_free_mbx_args(cmd);
3880                 kfree(cmd);
3881                 return;
3882         }
3883         complete(&cmd->completion);
3884 }
3885
3886 static void qlcnic_83xx_flush_mbx_queue(struct qlcnic_adapter *adapter)
3887 {
3888         struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
3889         struct list_head *head = &mbx->cmd_q;
3890         struct qlcnic_cmd_args *cmd = NULL;
3891
3892         spin_lock(&mbx->queue_lock);
3893
3894         while (!list_empty(head)) {
3895                 cmd = list_entry(head->next, struct qlcnic_cmd_args, list);
3896                 dev_info(&adapter->pdev->dev, "%s: Mailbox command 0x%x\n",
3897                          __func__, cmd->cmd_op);
3898                 list_del(&cmd->list);
3899                 mbx->num_cmds--;
3900                 qlcnic_83xx_notify_cmd_completion(adapter, cmd);
3901         }
3902
3903         spin_unlock(&mbx->queue_lock);
3904 }
3905
3906 static int qlcnic_83xx_check_mbx_status(struct qlcnic_adapter *adapter)
3907 {
3908         struct qlcnic_hardware_context *ahw = adapter->ahw;
3909         struct qlcnic_mailbox *mbx = ahw->mailbox;
3910         u32 host_mbx_ctrl;
3911
3912         if (!test_bit(QLC_83XX_MBX_READY, &mbx->status))
3913                 return -EBUSY;
3914
3915         host_mbx_ctrl = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL);
3916         if (host_mbx_ctrl) {
3917                 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
3918                 ahw->idc.collect_dump = 1;
3919                 return -EIO;
3920         }
3921
3922         return 0;
3923 }
3924
3925 static inline void qlcnic_83xx_signal_mbx_cmd(struct qlcnic_adapter *adapter,
3926                                               u8 issue_cmd)
3927 {
3928         if (issue_cmd)
3929                 QLCWRX(adapter->ahw, QLCNIC_HOST_MBX_CTRL, QLCNIC_SET_OWNER);
3930         else
3931                 QLCWRX(adapter->ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER);
3932 }
3933
3934 static void qlcnic_83xx_dequeue_mbx_cmd(struct qlcnic_adapter *adapter,
3935                                         struct qlcnic_cmd_args *cmd)
3936 {
3937         struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
3938
3939         spin_lock(&mbx->queue_lock);
3940
3941         list_del(&cmd->list);
3942         mbx->num_cmds--;
3943
3944         spin_unlock(&mbx->queue_lock);
3945
3946         qlcnic_83xx_notify_cmd_completion(adapter, cmd);
3947 }
3948
3949 static void qlcnic_83xx_encode_mbx_cmd(struct qlcnic_adapter *adapter,
3950                                        struct qlcnic_cmd_args *cmd)
3951 {
3952         u32 mbx_cmd, fw_hal_version, hdr_size, total_size, tmp;
3953         struct qlcnic_hardware_context *ahw = adapter->ahw;
3954         int i, j;
3955
3956         if (cmd->op_type != QLC_83XX_MBX_POST_BC_OP) {
3957                 mbx_cmd = cmd->req.arg[0];
3958                 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 0));
3959                 for (i = 1; i < cmd->req.num; i++)
3960                         writel(cmd->req.arg[i], QLCNIC_MBX_HOST(ahw, i));
3961         } else {
3962                 fw_hal_version = ahw->fw_hal_version;
3963                 hdr_size = sizeof(struct qlcnic_bc_hdr) / sizeof(u32);
3964                 total_size = cmd->pay_size + hdr_size;
3965                 tmp = QLCNIC_CMD_BC_EVENT_SETUP | total_size << 16;
3966                 mbx_cmd = tmp | fw_hal_version << 29;
3967                 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 0));
3968
3969                 /* Back channel specific operations bits */
3970                 mbx_cmd = 0x1 | 1 << 4;
3971
3972                 if (qlcnic_sriov_pf_check(adapter))
3973                         mbx_cmd |= cmd->func_num << 5;
3974
3975                 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 1));
3976
3977                 for (i = 2, j = 0; j < hdr_size; i++, j++)
3978                         writel(*(cmd->hdr++), QLCNIC_MBX_HOST(ahw, i));
3979                 for (j = 0; j < cmd->pay_size; j++, i++)
3980                         writel(*(cmd->pay++), QLCNIC_MBX_HOST(ahw, i));
3981         }
3982 }
3983
3984 void qlcnic_83xx_detach_mailbox_work(struct qlcnic_adapter *adapter)
3985 {
3986         struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
3987
3988         if (!mbx)
3989                 return;
3990
3991         clear_bit(QLC_83XX_MBX_READY, &mbx->status);
3992         complete(&mbx->completion);
3993         cancel_work_sync(&mbx->work);
3994         flush_workqueue(mbx->work_q);
3995         qlcnic_83xx_flush_mbx_queue(adapter);
3996 }
3997
3998 static int qlcnic_83xx_enqueue_mbx_cmd(struct qlcnic_adapter *adapter,
3999                                        struct qlcnic_cmd_args *cmd,
4000                                        unsigned long *timeout)
4001 {
4002         struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
4003
4004         if (test_bit(QLC_83XX_MBX_READY, &mbx->status)) {
4005                 atomic_set(&cmd->rsp_status, QLC_83XX_MBX_RESPONSE_WAIT);
4006                 init_completion(&cmd->completion);
4007                 cmd->rsp_opcode = QLC_83XX_MBX_RESPONSE_UNKNOWN;
4008
4009                 spin_lock(&mbx->queue_lock);
4010
4011                 list_add_tail(&cmd->list, &mbx->cmd_q);
4012                 mbx->num_cmds++;
4013                 cmd->total_cmds = mbx->num_cmds;
4014                 *timeout = cmd->total_cmds * QLC_83XX_MBX_TIMEOUT;
4015                 queue_work(mbx->work_q, &mbx->work);
4016
4017                 spin_unlock(&mbx->queue_lock);
4018
4019                 return 0;
4020         }
4021
4022         return -EBUSY;
4023 }
4024
4025 static int qlcnic_83xx_check_mac_rcode(struct qlcnic_adapter *adapter,
4026                                        struct qlcnic_cmd_args *cmd)
4027 {
4028         u8 mac_cmd_rcode;
4029         u32 fw_data;
4030
4031         if (cmd->cmd_op == QLCNIC_CMD_CONFIG_MAC_VLAN) {
4032                 fw_data = readl(QLCNIC_MBX_FW(adapter->ahw, 2));
4033                 mac_cmd_rcode = (u8)fw_data;
4034                 if (mac_cmd_rcode == QLC_83XX_NO_NIC_RESOURCE ||
4035                     mac_cmd_rcode == QLC_83XX_MAC_PRESENT ||
4036                     mac_cmd_rcode == QLC_83XX_MAC_ABSENT) {
4037                         cmd->rsp_opcode = QLCNIC_RCODE_SUCCESS;
4038                         return QLCNIC_RCODE_SUCCESS;
4039                 }
4040         }
4041
4042         return -EINVAL;
4043 }
4044
4045 static void qlcnic_83xx_decode_mbx_rsp(struct qlcnic_adapter *adapter,
4046                                        struct qlcnic_cmd_args *cmd)
4047 {
4048         struct qlcnic_hardware_context *ahw = adapter->ahw;
4049         struct device *dev = &adapter->pdev->dev;
4050         u8 mbx_err_code;
4051         u32 fw_data;
4052
4053         fw_data = readl(QLCNIC_MBX_FW(ahw, 0));
4054         mbx_err_code = QLCNIC_MBX_STATUS(fw_data);
4055         qlcnic_83xx_get_mbx_data(adapter, cmd);
4056
4057         switch (mbx_err_code) {
4058         case QLCNIC_MBX_RSP_OK:
4059         case QLCNIC_MBX_PORT_RSP_OK:
4060                 cmd->rsp_opcode = QLCNIC_RCODE_SUCCESS;
4061                 break;
4062         default:
4063                 if (!qlcnic_83xx_check_mac_rcode(adapter, cmd))
4064                         break;
4065
4066                 dev_err(dev, "%s: Mailbox command failed, opcode=0x%x, cmd_type=0x%x, func=0x%x, op_mode=0x%x, error=0x%x\n",
4067                         __func__, cmd->cmd_op, cmd->type, ahw->pci_func,
4068                         ahw->op_mode, mbx_err_code);
4069                 cmd->rsp_opcode = QLC_83XX_MBX_RESPONSE_FAILED;
4070                 qlcnic_dump_mbx(adapter, cmd);
4071         }
4072
4073         return;
4074 }
4075
4076 static inline void qlcnic_dump_mailbox_registers(struct qlcnic_adapter *adapter)
4077 {
4078         struct qlcnic_hardware_context *ahw = adapter->ahw;
4079         u32 offset;
4080
4081         offset = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
4082         dev_info(&adapter->pdev->dev, "Mbx interrupt mask=0x%x, Mbx interrupt enable=0x%x, Host mbx control=0x%x, Fw mbx control=0x%x",
4083                  readl(ahw->pci_base0 + offset),
4084                  QLCRDX(ahw, QLCNIC_MBX_INTR_ENBL),
4085                  QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL),
4086                  QLCRDX(ahw, QLCNIC_FW_MBX_CTRL));
4087 }
4088
4089 static void qlcnic_83xx_mailbox_worker(struct work_struct *work)
4090 {
4091         struct qlcnic_mailbox *mbx = container_of(work, struct qlcnic_mailbox,
4092                                                   work);
4093         struct qlcnic_adapter *adapter = mbx->adapter;
4094         const struct qlcnic_mbx_ops *mbx_ops = mbx->ops;
4095         struct device *dev = &adapter->pdev->dev;
4096         struct list_head *head = &mbx->cmd_q;
4097         struct qlcnic_hardware_context *ahw;
4098         struct qlcnic_cmd_args *cmd = NULL;
4099         unsigned long flags;
4100
4101         ahw = adapter->ahw;
4102
4103         while (true) {
4104                 if (qlcnic_83xx_check_mbx_status(adapter)) {
4105                         qlcnic_83xx_flush_mbx_queue(adapter);
4106                         return;
4107                 }
4108
4109                 spin_lock_irqsave(&mbx->aen_lock, flags);
4110                 mbx->rsp_status = QLC_83XX_MBX_RESPONSE_WAIT;
4111                 spin_unlock_irqrestore(&mbx->aen_lock, flags);
4112
4113                 spin_lock(&mbx->queue_lock);
4114
4115                 if (list_empty(head)) {
4116                         spin_unlock(&mbx->queue_lock);
4117                         return;
4118                 }
4119                 cmd = list_entry(head->next, struct qlcnic_cmd_args, list);
4120
4121                 spin_unlock(&mbx->queue_lock);
4122
4123                 mbx_ops->encode_cmd(adapter, cmd);
4124                 mbx_ops->nofity_fw(adapter, QLC_83XX_MBX_REQUEST);
4125
4126                 if (wait_for_completion_timeout(&mbx->completion,
4127                                                 QLC_83XX_MBX_TIMEOUT)) {
4128                         mbx_ops->decode_resp(adapter, cmd);
4129                         mbx_ops->nofity_fw(adapter, QLC_83XX_MBX_COMPLETION);
4130                 } else {
4131                         dev_err(dev, "%s: Mailbox command timeout, opcode=0x%x, cmd_type=0x%x, func=0x%x, op_mode=0x%x\n",
4132                                 __func__, cmd->cmd_op, cmd->type, ahw->pci_func,
4133                                 ahw->op_mode);
4134                         clear_bit(QLC_83XX_MBX_READY, &mbx->status);
4135                         qlcnic_dump_mailbox_registers(adapter);
4136                         qlcnic_83xx_get_mbx_data(adapter, cmd);
4137                         qlcnic_dump_mbx(adapter, cmd);
4138                         qlcnic_83xx_idc_request_reset(adapter,
4139                                                       QLCNIC_FORCE_FW_DUMP_KEY);
4140                         cmd->rsp_opcode = QLCNIC_RCODE_TIMEOUT;
4141                 }
4142                 mbx_ops->dequeue_cmd(adapter, cmd);
4143         }
4144 }
4145
4146 static const struct qlcnic_mbx_ops qlcnic_83xx_mbx_ops = {
4147         .enqueue_cmd    = qlcnic_83xx_enqueue_mbx_cmd,
4148         .dequeue_cmd    = qlcnic_83xx_dequeue_mbx_cmd,
4149         .decode_resp    = qlcnic_83xx_decode_mbx_rsp,
4150         .encode_cmd     = qlcnic_83xx_encode_mbx_cmd,
4151         .nofity_fw      = qlcnic_83xx_signal_mbx_cmd,
4152 };
4153
4154 int qlcnic_83xx_init_mailbox_work(struct qlcnic_adapter *adapter)
4155 {
4156         struct qlcnic_hardware_context *ahw = adapter->ahw;
4157         struct qlcnic_mailbox *mbx;
4158
4159         ahw->mailbox = kzalloc(sizeof(*mbx), GFP_KERNEL);
4160         if (!ahw->mailbox)
4161                 return -ENOMEM;
4162
4163         mbx = ahw->mailbox;
4164         mbx->ops = &qlcnic_83xx_mbx_ops;
4165         mbx->adapter = adapter;
4166
4167         spin_lock_init(&mbx->queue_lock);
4168         spin_lock_init(&mbx->aen_lock);
4169         INIT_LIST_HEAD(&mbx->cmd_q);
4170         init_completion(&mbx->completion);
4171
4172         mbx->work_q = create_singlethread_workqueue("qlcnic_mailbox");
4173         if (mbx->work_q == NULL) {
4174                 kfree(mbx);
4175                 return -ENOMEM;
4176         }
4177
4178         INIT_WORK(&mbx->work, qlcnic_83xx_mailbox_worker);
4179         set_bit(QLC_83XX_MBX_READY, &mbx->status);
4180         return 0;
4181 }
4182
4183 static pci_ers_result_t qlcnic_83xx_io_error_detected(struct pci_dev *pdev,
4184                                                       pci_channel_state_t state)
4185 {
4186         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4187
4188         if (state == pci_channel_io_perm_failure)
4189                 return PCI_ERS_RESULT_DISCONNECT;
4190
4191         if (state == pci_channel_io_normal)
4192                 return PCI_ERS_RESULT_RECOVERED;
4193
4194         set_bit(__QLCNIC_AER, &adapter->state);
4195         set_bit(__QLCNIC_RESETTING, &adapter->state);
4196
4197         qlcnic_83xx_aer_stop_poll_work(adapter);
4198
4199         pci_save_state(pdev);
4200         pci_disable_device(pdev);
4201
4202         return PCI_ERS_RESULT_NEED_RESET;
4203 }
4204
4205 static pci_ers_result_t qlcnic_83xx_io_slot_reset(struct pci_dev *pdev)
4206 {
4207         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4208         int err = 0;
4209
4210         pdev->error_state = pci_channel_io_normal;
4211         err = pci_enable_device(pdev);
4212         if (err)
4213                 goto disconnect;
4214
4215         pci_set_power_state(pdev, PCI_D0);
4216         pci_set_master(pdev);
4217         pci_restore_state(pdev);
4218
4219         err = qlcnic_83xx_aer_reset(adapter);
4220         if (err == 0)
4221                 return PCI_ERS_RESULT_RECOVERED;
4222 disconnect:
4223         clear_bit(__QLCNIC_AER, &adapter->state);
4224         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4225         return PCI_ERS_RESULT_DISCONNECT;
4226 }
4227
4228 static void qlcnic_83xx_io_resume(struct pci_dev *pdev)
4229 {
4230         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4231
4232         pci_cleanup_aer_uncorrect_error_status(pdev);
4233         if (test_and_clear_bit(__QLCNIC_AER, &adapter->state))
4234                 qlcnic_83xx_aer_start_poll_work(adapter);
4235 }