linux/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
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   1/*
   2 * QLogic qlcnic NIC Driver
   3 * Copyright (c) 2009-2013 QLogic Corporation
   4 *
   5 * See LICENSE.qlcnic for copyright and licensing details.
   6 */
   7
   8#include <linux/vmalloc.h>
   9#include <linux/interrupt.h>
  10#include <linux/swab.h>
  11#include <linux/dma-mapping.h>
  12#include <linux/if_vlan.h>
  13#include <net/ip.h>
  14#include <linux/ipv6.h>
  15#include <linux/inetdevice.h>
  16#include <linux/aer.h>
  17#include <linux/log2.h>
  18#include <linux/pci.h>
  19#ifdef CONFIG_QLCNIC_VXLAN
  20#include <net/vxlan.h>
  21#endif
  22
  23#include "qlcnic.h"
  24#include "qlcnic_sriov.h"
  25#include "qlcnic_hw.h"
  26
  27MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  28MODULE_LICENSE("GPL");
  29MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  30MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  31
  32char qlcnic_driver_name[] = "qlcnic";
  33static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  34        "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  35
  36static int qlcnic_mac_learn;
  37module_param(qlcnic_mac_learn, int, 0444);
  38MODULE_PARM_DESC(qlcnic_mac_learn,
  39                 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  40
  41int qlcnic_use_msi = 1;
  42MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  43module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  44
  45int qlcnic_use_msi_x = 1;
  46MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  47module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  48
  49int qlcnic_auto_fw_reset = 1;
  50MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  51module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  52
  53int qlcnic_load_fw_file;
  54MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
  55module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  56
  57static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  58static void qlcnic_remove(struct pci_dev *pdev);
  59static int qlcnic_open(struct net_device *netdev);
  60static int qlcnic_close(struct net_device *netdev);
  61static void qlcnic_tx_timeout(struct net_device *netdev);
  62static void qlcnic_attach_work(struct work_struct *work);
  63static void qlcnic_fwinit_work(struct work_struct *work);
  64#ifdef CONFIG_NET_POLL_CONTROLLER
  65static void qlcnic_poll_controller(struct net_device *netdev);
  66#endif
  67
  68static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  69static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  70
  71static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  72static irqreturn_t qlcnic_intr(int irq, void *data);
  73static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  74static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  75static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  76
  77static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  78static int qlcnic_start_firmware(struct qlcnic_adapter *);
  79
  80static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  81static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  82static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  83static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  84static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  85
  86static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  87static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  88static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  89static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  90static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  91static void qlcnic_82xx_io_resume(struct pci_dev *);
  92static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  93static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  94                                                      pci_channel_state_t);
  95static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  96{
  97        struct qlcnic_hardware_context *ahw = adapter->ahw;
  98
  99        if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 100                return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 101        else
 102                return 1;
 103}
 104
 105/*  PCI Device ID Table  */
 106#define ENTRY(device) \
 107        {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 108        .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 109
 110static const struct pci_device_id qlcnic_pci_tbl[] = {
 111        ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 112        ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 113        ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 114        ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 115        ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 116        ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 117        ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 118        {0,}
 119};
 120
 121MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 122
 123
 124inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 125{
 126        writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 127}
 128
 129static const u32 msi_tgt_status[8] = {
 130        ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 131        ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 132        ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 133        ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 134};
 135
 136static const u32 qlcnic_reg_tbl[] = {
 137        0x1B20A8,       /* PEG_HALT_STAT1 */
 138        0x1B20AC,       /* PEG_HALT_STAT2 */
 139        0x1B20B0,       /* FW_HEARTBEAT */
 140        0x1B2100,       /* LOCK ID */
 141        0x1B2128,       /* FW_CAPABILITIES */
 142        0x1B2138,       /* drv active */
 143        0x1B2140,       /* dev state */
 144        0x1B2144,       /* drv state */
 145        0x1B2148,       /* drv scratch */
 146        0x1B214C,       /* dev partition info */
 147        0x1B2174,       /* drv idc ver */
 148        0x1B2150,       /* fw version major */
 149        0x1B2154,       /* fw version minor */
 150        0x1B2158,       /* fw version sub */
 151        0x1B219C,       /* npar state */
 152        0x1B21FC,       /* FW_IMG_VALID */
 153        0x1B2250,       /* CMD_PEG_STATE */
 154        0x1B233C,       /* RCV_PEG_STATE */
 155        0x1B23B4,       /* ASIC TEMP */
 156        0x1B216C,       /* FW api */
 157        0x1B2170,       /* drv op mode */
 158        0x13C010,       /* flash lock */
 159        0x13C014,       /* flash unlock */
 160};
 161
 162static const struct qlcnic_board_info qlcnic_boards[] = {
 163        { PCI_VENDOR_ID_QLOGIC,
 164          PCI_DEVICE_ID_QLOGIC_QLE844X,
 165          0x0,
 166          0x0,
 167          "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 168        { PCI_VENDOR_ID_QLOGIC,
 169          PCI_DEVICE_ID_QLOGIC_QLE834X,
 170          PCI_VENDOR_ID_QLOGIC,
 171          0x24e,
 172          "8300 Series Dual Port 10GbE Converged Network Adapter "
 173          "(TCP/IP Networking)" },
 174        { PCI_VENDOR_ID_QLOGIC,
 175          PCI_DEVICE_ID_QLOGIC_QLE834X,
 176          PCI_VENDOR_ID_QLOGIC,
 177          0x243,
 178          "8300 Series Single Port 10GbE Converged Network Adapter "
 179          "(TCP/IP Networking)" },
 180        { PCI_VENDOR_ID_QLOGIC,
 181          PCI_DEVICE_ID_QLOGIC_QLE834X,
 182          PCI_VENDOR_ID_QLOGIC,
 183          0x24a,
 184          "8300 Series Dual Port 10GbE Converged Network Adapter "
 185          "(TCP/IP Networking)" },
 186        { PCI_VENDOR_ID_QLOGIC,
 187          PCI_DEVICE_ID_QLOGIC_QLE834X,
 188          PCI_VENDOR_ID_QLOGIC,
 189          0x246,
 190          "8300 Series Dual Port 10GbE Converged Network Adapter "
 191          "(TCP/IP Networking)" },
 192        { PCI_VENDOR_ID_QLOGIC,
 193          PCI_DEVICE_ID_QLOGIC_QLE834X,
 194          PCI_VENDOR_ID_QLOGIC,
 195          0x252,
 196          "8300 Series Dual Port 10GbE Converged Network Adapter "
 197          "(TCP/IP Networking)" },
 198        { PCI_VENDOR_ID_QLOGIC,
 199          PCI_DEVICE_ID_QLOGIC_QLE834X,
 200          PCI_VENDOR_ID_QLOGIC,
 201          0x26e,
 202          "8300 Series Dual Port 10GbE Converged Network Adapter "
 203          "(TCP/IP Networking)" },
 204        { PCI_VENDOR_ID_QLOGIC,
 205          PCI_DEVICE_ID_QLOGIC_QLE834X,
 206          PCI_VENDOR_ID_QLOGIC,
 207          0x260,
 208          "8300 Series Dual Port 10GbE Converged Network Adapter "
 209          "(TCP/IP Networking)" },
 210        { PCI_VENDOR_ID_QLOGIC,
 211          PCI_DEVICE_ID_QLOGIC_QLE834X,
 212          PCI_VENDOR_ID_QLOGIC,
 213          0x266,
 214          "8300 Series Single Port 10GbE Converged Network Adapter "
 215          "(TCP/IP Networking)" },
 216        { PCI_VENDOR_ID_QLOGIC,
 217          PCI_DEVICE_ID_QLOGIC_QLE834X,
 218          PCI_VENDOR_ID_QLOGIC,
 219          0x269,
 220          "8300 Series Dual Port 10GbE Converged Network Adapter "
 221          "(TCP/IP Networking)" },
 222        { PCI_VENDOR_ID_QLOGIC,
 223          PCI_DEVICE_ID_QLOGIC_QLE834X,
 224          PCI_VENDOR_ID_QLOGIC,
 225          0x271,
 226          "8300 Series Dual Port 10GbE Converged Network Adapter "
 227          "(TCP/IP Networking)" },
 228        { PCI_VENDOR_ID_QLOGIC,
 229          PCI_DEVICE_ID_QLOGIC_QLE834X,
 230          0x0, 0x0, "8300 Series 1/10GbE Controller" },
 231        { PCI_VENDOR_ID_QLOGIC,
 232          PCI_DEVICE_ID_QLOGIC_QLE8830,
 233          0x0,
 234          0x0,
 235          "8830 Series 1/10GbE Controller" },
 236        { PCI_VENDOR_ID_QLOGIC,
 237          PCI_DEVICE_ID_QLOGIC_QLE824X,
 238          PCI_VENDOR_ID_QLOGIC,
 239          0x203,
 240          "8200 Series Single Port 10GbE Converged Network Adapter"
 241          "(TCP/IP Networking)" },
 242        { PCI_VENDOR_ID_QLOGIC,
 243          PCI_DEVICE_ID_QLOGIC_QLE824X,
 244          PCI_VENDOR_ID_QLOGIC,
 245          0x207,
 246          "8200 Series Dual Port 10GbE Converged Network Adapter"
 247          "(TCP/IP Networking)" },
 248        { PCI_VENDOR_ID_QLOGIC,
 249          PCI_DEVICE_ID_QLOGIC_QLE824X,
 250          PCI_VENDOR_ID_QLOGIC,
 251          0x20b,
 252          "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 253        { PCI_VENDOR_ID_QLOGIC,
 254          PCI_DEVICE_ID_QLOGIC_QLE824X,
 255          PCI_VENDOR_ID_QLOGIC,
 256          0x20c,
 257          "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 258        { PCI_VENDOR_ID_QLOGIC,
 259          PCI_DEVICE_ID_QLOGIC_QLE824X,
 260          PCI_VENDOR_ID_QLOGIC,
 261          0x20f,
 262          "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 263        { PCI_VENDOR_ID_QLOGIC,
 264          PCI_DEVICE_ID_QLOGIC_QLE824X,
 265          0x103c, 0x3733,
 266          "NC523SFP 10Gb 2-port Server Adapter" },
 267        { PCI_VENDOR_ID_QLOGIC,
 268          PCI_DEVICE_ID_QLOGIC_QLE824X,
 269          0x103c, 0x3346,
 270          "CN1000Q Dual Port Converged Network Adapter" },
 271        { PCI_VENDOR_ID_QLOGIC,
 272          PCI_DEVICE_ID_QLOGIC_QLE824X,
 273          PCI_VENDOR_ID_QLOGIC,
 274          0x210,
 275          "QME8242-k 10GbE Dual Port Mezzanine Card" },
 276        { PCI_VENDOR_ID_QLOGIC,
 277          PCI_DEVICE_ID_QLOGIC_QLE824X,
 278          0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 279};
 280
 281#define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 282
 283static const
 284struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 285
 286int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 287{
 288        int size = sizeof(struct qlcnic_host_sds_ring) * count;
 289
 290        recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 291
 292        return recv_ctx->sds_rings == NULL;
 293}
 294
 295void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 296{
 297        kfree(recv_ctx->sds_rings);
 298        recv_ctx->sds_rings = NULL;
 299}
 300
 301int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 302{
 303        struct net_device *netdev = adapter->netdev;
 304        struct pci_dev *pdev = adapter->pdev;
 305        u8 mac_addr[ETH_ALEN];
 306        int ret;
 307
 308        ret = qlcnic_get_mac_address(adapter, mac_addr,
 309                                     adapter->ahw->pci_func);
 310        if (ret)
 311                return ret;
 312
 313        memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 314        memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 315
 316        /* set station address */
 317
 318        if (!is_valid_ether_addr(netdev->dev_addr))
 319                dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 320                                        netdev->dev_addr);
 321
 322        return 0;
 323}
 324
 325static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 326{
 327        struct qlcnic_mac_vlan_list *cur;
 328        struct list_head *head;
 329
 330        list_for_each(head, &adapter->mac_list) {
 331                cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 332                if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 333                        qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 334                                                  0, QLCNIC_MAC_DEL);
 335                        list_del(&cur->list);
 336                        kfree(cur);
 337                        return;
 338                }
 339        }
 340}
 341
 342static int qlcnic_set_mac(struct net_device *netdev, void *p)
 343{
 344        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 345        struct sockaddr *addr = p;
 346
 347        if (qlcnic_sriov_vf_check(adapter))
 348                return -EINVAL;
 349
 350        if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 351                return -EOPNOTSUPP;
 352
 353        if (!is_valid_ether_addr(addr->sa_data))
 354                return -EINVAL;
 355
 356        if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
 357            ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
 358                return 0;
 359
 360        if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 361                netif_device_detach(netdev);
 362                qlcnic_napi_disable(adapter);
 363        }
 364
 365        qlcnic_delete_adapter_mac(adapter);
 366        memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 367        memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 368        qlcnic_set_multi(adapter->netdev);
 369
 370        if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 371                netif_device_attach(netdev);
 372                qlcnic_napi_enable(adapter);
 373        }
 374        return 0;
 375}
 376
 377static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 378                        struct net_device *netdev,
 379                        const unsigned char *addr, u16 vid)
 380{
 381        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 382        int err = -EOPNOTSUPP;
 383
 384        if (!adapter->fdb_mac_learn)
 385                return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 386
 387        if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 388            qlcnic_sriov_check(adapter)) {
 389                if (is_unicast_ether_addr(addr)) {
 390                        err = dev_uc_del(netdev, addr);
 391                        if (!err)
 392                                err = qlcnic_nic_del_mac(adapter, addr);
 393                } else if (is_multicast_ether_addr(addr)) {
 394                        err = dev_mc_del(netdev, addr);
 395                } else {
 396                        err =  -EINVAL;
 397                }
 398        }
 399        return err;
 400}
 401
 402static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 403                        struct net_device *netdev,
 404                        const unsigned char *addr, u16 vid, u16 flags)
 405{
 406        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 407        int err = 0;
 408
 409        if (!adapter->fdb_mac_learn)
 410                return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 411
 412        if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 413            !qlcnic_sriov_check(adapter)) {
 414                pr_info("%s: FDB e-switch is not enabled\n", __func__);
 415                return -EOPNOTSUPP;
 416        }
 417
 418        if (ether_addr_equal(addr, adapter->mac_addr))
 419                return err;
 420
 421        if (is_unicast_ether_addr(addr)) {
 422                if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 423                        err = dev_uc_add_excl(netdev, addr);
 424                else
 425                        err = -ENOMEM;
 426        } else if (is_multicast_ether_addr(addr)) {
 427                err = dev_mc_add_excl(netdev, addr);
 428        } else {
 429                err = -EINVAL;
 430        }
 431
 432        return err;
 433}
 434
 435static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 436                        struct net_device *netdev,
 437                        struct net_device *filter_dev, int idx)
 438{
 439        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 440
 441        if (!adapter->fdb_mac_learn)
 442                return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 443
 444        if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 445            qlcnic_sriov_check(adapter))
 446                idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 447
 448        return idx;
 449}
 450
 451static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 452{
 453        while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 454                usleep_range(10000, 11000);
 455
 456        if (!adapter->fw_work.work.func)
 457                return;
 458
 459        cancel_delayed_work_sync(&adapter->fw_work);
 460}
 461
 462static int qlcnic_get_phys_port_id(struct net_device *netdev,
 463                                   struct netdev_phys_item_id *ppid)
 464{
 465        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 466        struct qlcnic_hardware_context *ahw = adapter->ahw;
 467
 468        if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 469                return -EOPNOTSUPP;
 470
 471        ppid->id_len = sizeof(ahw->phys_port_id);
 472        memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 473
 474        return 0;
 475}
 476
 477#ifdef CONFIG_QLCNIC_VXLAN
 478static void qlcnic_add_vxlan_port(struct net_device *netdev,
 479                                  sa_family_t sa_family, __be16 port)
 480{
 481        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 482        struct qlcnic_hardware_context *ahw = adapter->ahw;
 483
 484        /* Adapter supports only one VXLAN port. Use very first port
 485         * for enabling offload
 486         */
 487        if (!qlcnic_encap_rx_offload(adapter))
 488                return;
 489        if (!ahw->vxlan_port_count) {
 490                ahw->vxlan_port_count = 1;
 491                ahw->vxlan_port = ntohs(port);
 492                adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 493                return;
 494        }
 495        if (ahw->vxlan_port == ntohs(port))
 496                ahw->vxlan_port_count++;
 497
 498}
 499
 500static void qlcnic_del_vxlan_port(struct net_device *netdev,
 501                                  sa_family_t sa_family, __be16 port)
 502{
 503        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 504        struct qlcnic_hardware_context *ahw = adapter->ahw;
 505
 506        if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
 507            (ahw->vxlan_port != ntohs(port)))
 508                return;
 509
 510        ahw->vxlan_port_count--;
 511        if (!ahw->vxlan_port_count)
 512                adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 513}
 514
 515static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 516                                               struct net_device *dev,
 517                                               netdev_features_t features)
 518{
 519        features = vlan_features_check(skb, features);
 520        return vxlan_features_check(skb, features);
 521}
 522#endif
 523
 524static const struct net_device_ops qlcnic_netdev_ops = {
 525        .ndo_open          = qlcnic_open,
 526        .ndo_stop          = qlcnic_close,
 527        .ndo_start_xmit    = qlcnic_xmit_frame,
 528        .ndo_get_stats     = qlcnic_get_stats,
 529        .ndo_validate_addr = eth_validate_addr,
 530        .ndo_set_rx_mode   = qlcnic_set_multi,
 531        .ndo_set_mac_address    = qlcnic_set_mac,
 532        .ndo_change_mtu    = qlcnic_change_mtu,
 533        .ndo_fix_features  = qlcnic_fix_features,
 534        .ndo_set_features  = qlcnic_set_features,
 535        .ndo_tx_timeout    = qlcnic_tx_timeout,
 536        .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 537        .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 538        .ndo_fdb_add            = qlcnic_fdb_add,
 539        .ndo_fdb_del            = qlcnic_fdb_del,
 540        .ndo_fdb_dump           = qlcnic_fdb_dump,
 541        .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 542#ifdef CONFIG_QLCNIC_VXLAN
 543        .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 544        .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 545        .ndo_features_check     = qlcnic_features_check,
 546#endif
 547#ifdef CONFIG_NET_POLL_CONTROLLER
 548        .ndo_poll_controller = qlcnic_poll_controller,
 549#endif
 550#ifdef CONFIG_QLCNIC_SRIOV
 551        .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 552        .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 553        .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 554        .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 555        .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 556#endif
 557};
 558
 559static const struct net_device_ops qlcnic_netdev_failed_ops = {
 560        .ndo_open          = qlcnic_open,
 561};
 562
 563static struct qlcnic_nic_template qlcnic_ops = {
 564        .config_bridged_mode    = qlcnic_config_bridged_mode,
 565        .config_led             = qlcnic_82xx_config_led,
 566        .start_firmware         = qlcnic_82xx_start_firmware,
 567        .request_reset          = qlcnic_82xx_dev_request_reset,
 568        .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 569        .napi_add               = qlcnic_82xx_napi_add,
 570        .napi_del               = qlcnic_82xx_napi_del,
 571        .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 572        .shutdown               = qlcnic_82xx_shutdown,
 573        .resume                 = qlcnic_82xx_resume,
 574        .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 575};
 576
 577struct qlcnic_nic_template qlcnic_vf_ops = {
 578        .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 579        .config_led             = qlcnicvf_config_led,
 580        .start_firmware         = qlcnicvf_start_firmware
 581};
 582
 583static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 584        .read_crb                       = qlcnic_82xx_read_crb,
 585        .write_crb                      = qlcnic_82xx_write_crb,
 586        .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 587        .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 588        .get_mac_address                = qlcnic_82xx_get_mac_address,
 589        .setup_intr                     = qlcnic_82xx_setup_intr,
 590        .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 591        .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 592        .get_func_no                    = qlcnic_82xx_get_func_no,
 593        .api_lock                       = qlcnic_82xx_api_lock,
 594        .api_unlock                     = qlcnic_82xx_api_unlock,
 595        .add_sysfs                      = qlcnic_82xx_add_sysfs,
 596        .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 597        .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 598        .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 599        .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 600        .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 601        .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 602        .setup_link_event               = qlcnic_82xx_linkevent_request,
 603        .get_nic_info                   = qlcnic_82xx_get_nic_info,
 604        .get_pci_info                   = qlcnic_82xx_get_pci_info,
 605        .set_nic_info                   = qlcnic_82xx_set_nic_info,
 606        .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 607        .napi_enable                    = qlcnic_82xx_napi_enable,
 608        .napi_disable                   = qlcnic_82xx_napi_disable,
 609        .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 610        .config_rss                     = qlcnic_82xx_config_rss,
 611        .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 612        .config_loopback                = qlcnic_82xx_set_lb_mode,
 613        .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 614        .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 615        .change_l2_filter               = qlcnic_82xx_change_filter,
 616        .get_board_info                 = qlcnic_82xx_get_board_info,
 617        .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 618        .free_mac_list                  = qlcnic_82xx_free_mac_list,
 619        .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 620        .io_error_detected              = qlcnic_82xx_io_error_detected,
 621        .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 622        .io_resume                      = qlcnic_82xx_io_resume,
 623        .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 624        .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 625        .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 626        .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 627        .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 628        .get_saved_state                = qlcnic_82xx_get_saved_state,
 629        .set_saved_state                = qlcnic_82xx_set_saved_state,
 630        .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 631        .get_cap_size                   = qlcnic_82xx_get_cap_size,
 632        .set_sys_info                   = qlcnic_82xx_set_sys_info,
 633        .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 634};
 635
 636static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 637{
 638        struct qlcnic_hardware_context *ahw = adapter->ahw;
 639
 640        if (qlcnic_82xx_check(adapter) &&
 641            (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 642                test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 643                return 0;
 644        } else {
 645                return 1;
 646        }
 647}
 648
 649static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 650                            int queue_type)
 651{
 652        int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 653
 654        if (queue_type == QLCNIC_RX_QUEUE)
 655                max_rings = adapter->max_sds_rings;
 656        else if (queue_type == QLCNIC_TX_QUEUE)
 657                max_rings = adapter->max_tx_rings;
 658
 659        num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 660                                              max_rings));
 661
 662        if (ring_cnt > num_rings)
 663                return num_rings;
 664        else
 665                return ring_cnt;
 666}
 667
 668void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 669{
 670        /* 83xx adapter does not have max_tx_rings intialized in probe */
 671        if (adapter->max_tx_rings)
 672                adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 673                                                         QLCNIC_TX_QUEUE);
 674        else
 675                adapter->drv_tx_rings = tx_cnt;
 676}
 677
 678void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 679{
 680        /* 83xx adapter does not have max_sds_rings intialized in probe */
 681        if (adapter->max_sds_rings)
 682                adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 683                                                          QLCNIC_RX_QUEUE);
 684        else
 685                adapter->drv_sds_rings = rx_cnt;
 686}
 687
 688int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 689{
 690        struct pci_dev *pdev = adapter->pdev;
 691        int num_msix = 0, err = 0, vector;
 692
 693        adapter->flags &= ~QLCNIC_TSS_RSS;
 694
 695        if (adapter->drv_tss_rings > 0)
 696                num_msix += adapter->drv_tss_rings;
 697        else
 698                num_msix += adapter->drv_tx_rings;
 699
 700        if (adapter->drv_rss_rings > 0)
 701                num_msix += adapter->drv_rss_rings;
 702        else
 703                num_msix += adapter->drv_sds_rings;
 704
 705        if (qlcnic_83xx_check(adapter))
 706                num_msix += 1;
 707
 708        if (!adapter->msix_entries) {
 709                adapter->msix_entries = kcalloc(num_msix,
 710                                                sizeof(struct msix_entry),
 711                                                GFP_KERNEL);
 712                if (!adapter->msix_entries)
 713                        return -ENOMEM;
 714        }
 715
 716        for (vector = 0; vector < num_msix; vector++)
 717                adapter->msix_entries[vector].entry = vector;
 718
 719restore:
 720        err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 721        if (err == -ENOSPC) {
 722                if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 723                        return err;
 724
 725                netdev_info(adapter->netdev,
 726                            "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 727                            num_msix, err);
 728
 729                num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 730
 731                /* Set rings to 0 so we can restore original TSS/RSS count */
 732                adapter->drv_tss_rings = 0;
 733                adapter->drv_rss_rings = 0;
 734
 735                if (qlcnic_83xx_check(adapter))
 736                        num_msix += 1;
 737
 738                netdev_info(adapter->netdev,
 739                            "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 740                            adapter->drv_tx_rings, adapter->drv_sds_rings,
 741                            num_msix);
 742
 743                goto restore;
 744        } else if (err < 0) {
 745                return err;
 746        }
 747
 748        adapter->ahw->num_msix = num_msix;
 749        if (adapter->drv_tss_rings > 0)
 750                adapter->drv_tx_rings = adapter->drv_tss_rings;
 751
 752        if (adapter->drv_rss_rings > 0)
 753                adapter->drv_sds_rings = adapter->drv_rss_rings;
 754
 755        return 0;
 756}
 757
 758int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 759{
 760        struct pci_dev *pdev = adapter->pdev;
 761        int err, vector;
 762
 763        if (!adapter->msix_entries) {
 764                adapter->msix_entries = kcalloc(num_msix,
 765                                                sizeof(struct msix_entry),
 766                                                GFP_KERNEL);
 767                if (!adapter->msix_entries)
 768                        return -ENOMEM;
 769        }
 770
 771        adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 772
 773        if (adapter->ahw->msix_supported) {
 774enable_msix:
 775                for (vector = 0; vector < num_msix; vector++)
 776                        adapter->msix_entries[vector].entry = vector;
 777
 778                err = pci_enable_msix_range(pdev,
 779                                            adapter->msix_entries, 1, num_msix);
 780
 781                if (err == num_msix) {
 782                        adapter->flags |= QLCNIC_MSIX_ENABLED;
 783                        adapter->ahw->num_msix = num_msix;
 784                        dev_info(&pdev->dev, "using msi-x interrupts\n");
 785                        return 0;
 786                } else if (err > 0) {
 787                        pci_disable_msix(pdev);
 788
 789                        dev_info(&pdev->dev,
 790                                 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 791                                 num_msix, err);
 792
 793                        if (qlcnic_82xx_check(adapter)) {
 794                                num_msix = rounddown_pow_of_two(err);
 795                                if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 796                                        return -ENOSPC;
 797                        } else {
 798                                num_msix = rounddown_pow_of_two(err - 1);
 799                                num_msix += 1;
 800                                if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 801                                        return -ENOSPC;
 802                        }
 803
 804                        if (qlcnic_82xx_check(adapter) &&
 805                            !qlcnic_check_multi_tx(adapter)) {
 806                                adapter->drv_sds_rings = num_msix;
 807                                adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 808                        } else {
 809                                /* Distribute vectors equally */
 810                                adapter->drv_tx_rings = num_msix / 2;
 811                                adapter->drv_sds_rings = adapter->drv_tx_rings;
 812                        }
 813
 814                        if (num_msix) {
 815                                dev_info(&pdev->dev,
 816                                         "Trying to allocate %d MSI-X interrupt vectors\n",
 817                                         num_msix);
 818                                goto enable_msix;
 819                        }
 820                } else {
 821                        dev_info(&pdev->dev,
 822                                 "Unable to allocate %d MSI-X vectors, err=%d\n",
 823                                 num_msix, err);
 824                        return err;
 825                }
 826        }
 827
 828        return -EIO;
 829}
 830
 831static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 832{
 833        int num_msix;
 834
 835        num_msix = adapter->drv_sds_rings;
 836
 837        if (qlcnic_check_multi_tx(adapter))
 838                num_msix += adapter->drv_tx_rings;
 839        else
 840                num_msix += QLCNIC_SINGLE_RING;
 841
 842        return num_msix;
 843}
 844
 845static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 846{
 847        int err = 0;
 848        u32 offset, mask_reg;
 849        const struct qlcnic_legacy_intr_set *legacy_intrp;
 850        struct qlcnic_hardware_context *ahw = adapter->ahw;
 851        struct pci_dev *pdev = adapter->pdev;
 852
 853        if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 854                adapter->flags |= QLCNIC_MSI_ENABLED;
 855                offset = msi_tgt_status[adapter->ahw->pci_func];
 856                adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 857                                                            offset);
 858                dev_info(&pdev->dev, "using msi interrupts\n");
 859                adapter->msix_entries[0].vector = pdev->irq;
 860                return err;
 861        }
 862
 863        if (qlcnic_use_msi || qlcnic_use_msi_x)
 864                return -EOPNOTSUPP;
 865
 866        legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 867        adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 868        offset = legacy_intrp->tgt_status_reg;
 869        adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 870        mask_reg = legacy_intrp->tgt_mask_reg;
 871        adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 872        adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 873        adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 874        dev_info(&pdev->dev, "using legacy interrupts\n");
 875        adapter->msix_entries[0].vector = pdev->irq;
 876        return err;
 877}
 878
 879static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 880{
 881        int num_msix, err = 0;
 882
 883        if (adapter->flags & QLCNIC_TSS_RSS) {
 884                err = qlcnic_setup_tss_rss_intr(adapter);
 885                if (err < 0)
 886                        return err;
 887                num_msix = adapter->ahw->num_msix;
 888        } else {
 889                num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 890
 891                err = qlcnic_enable_msix(adapter, num_msix);
 892                if (err == -ENOMEM)
 893                        return err;
 894
 895                if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 896                        qlcnic_disable_multi_tx(adapter);
 897                        adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 898
 899                        err = qlcnic_enable_msi_legacy(adapter);
 900                        if (err)
 901                                return err;
 902                }
 903        }
 904
 905        return 0;
 906}
 907
 908int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 909{
 910        struct qlcnic_hardware_context *ahw = adapter->ahw;
 911        int err, i;
 912
 913        if (qlcnic_check_multi_tx(adapter) &&
 914            !ahw->diag_test &&
 915            (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 916                ahw->intr_tbl = vzalloc(ahw->num_msix *
 917                                        sizeof(struct qlcnic_intrpt_config));
 918                if (!ahw->intr_tbl)
 919                        return -ENOMEM;
 920
 921                for (i = 0; i < ahw->num_msix; i++) {
 922                        ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 923                        ahw->intr_tbl[i].id = i;
 924                        ahw->intr_tbl[i].src = 0;
 925                }
 926
 927                err = qlcnic_82xx_config_intrpt(adapter, 1);
 928                if (err)
 929                        dev_err(&adapter->pdev->dev,
 930                                "Failed to configure Interrupt for %d vector\n",
 931                                ahw->num_msix);
 932                return err;
 933        }
 934
 935        return 0;
 936}
 937
 938void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 939{
 940        if (adapter->flags & QLCNIC_MSIX_ENABLED)
 941                pci_disable_msix(adapter->pdev);
 942        if (adapter->flags & QLCNIC_MSI_ENABLED)
 943                pci_disable_msi(adapter->pdev);
 944
 945        kfree(adapter->msix_entries);
 946        adapter->msix_entries = NULL;
 947
 948        if (adapter->ahw->intr_tbl) {
 949                vfree(adapter->ahw->intr_tbl);
 950                adapter->ahw->intr_tbl = NULL;
 951        }
 952}
 953
 954static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 955{
 956        if (ahw->pci_base0 != NULL)
 957                iounmap(ahw->pci_base0);
 958}
 959
 960static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 961{
 962        struct qlcnic_hardware_context *ahw = adapter->ahw;
 963        struct qlcnic_pci_info *pci_info;
 964        int ret;
 965
 966        if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 967                switch (ahw->port_type) {
 968                case QLCNIC_GBE:
 969                        ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 970                        break;
 971                case QLCNIC_XGBE:
 972                        ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 973                        break;
 974                }
 975                return 0;
 976        }
 977
 978        if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 979                return 0;
 980
 981        pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 982        if (!pci_info)
 983                return -ENOMEM;
 984
 985        ret = qlcnic_get_pci_info(adapter, pci_info);
 986        kfree(pci_info);
 987        return ret;
 988}
 989
 990static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 991{
 992        bool ret = false;
 993
 994        if (qlcnic_84xx_check(adapter)) {
 995                ret = true;
 996        } else if (qlcnic_83xx_check(adapter)) {
 997                if (adapter->ahw->extra_capability[0] &
 998                    QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 999                        ret = true;
1000                else
1001                        ret = false;
1002        }
1003
1004        return ret;
1005}
1006
1007int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1008{
1009        struct qlcnic_hardware_context *ahw = adapter->ahw;
1010        struct qlcnic_pci_info *pci_info;
1011        int i, id = 0, ret = 0, j = 0;
1012        u16 act_pci_func;
1013        u8 pfn;
1014
1015        pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1016        if (!pci_info)
1017                return -ENOMEM;
1018
1019        ret = qlcnic_get_pci_info(adapter, pci_info);
1020        if (ret)
1021                goto err_pci_info;
1022
1023        act_pci_func = ahw->total_nic_func;
1024
1025        adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1026                                 act_pci_func, GFP_KERNEL);
1027        if (!adapter->npars) {
1028                ret = -ENOMEM;
1029                goto err_pci_info;
1030        }
1031
1032        adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1033                                QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1034        if (!adapter->eswitch) {
1035                ret = -ENOMEM;
1036                goto err_npars;
1037        }
1038
1039        for (i = 0; i < ahw->max_vnic_func; i++) {
1040                pfn = pci_info[i].id;
1041
1042                if (pfn >= ahw->max_vnic_func) {
1043                        ret = -EINVAL;
1044                        dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1045                                __func__, pfn, ahw->max_vnic_func);
1046                        goto err_eswitch;
1047                }
1048
1049                if (!pci_info[i].active ||
1050                    (pci_info[i].type != QLCNIC_TYPE_NIC))
1051                        continue;
1052
1053                if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1054                        if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1055                                                                 &id))
1056                                adapter->npars[j].eswitch_status = true;
1057                        else
1058                                continue;
1059                } else {
1060                        adapter->npars[j].eswitch_status = true;
1061                }
1062
1063                adapter->npars[j].pci_func = pfn;
1064                adapter->npars[j].active = (u8)pci_info[i].active;
1065                adapter->npars[j].type = (u8)pci_info[i].type;
1066                adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1067                adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1068                adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1069
1070                memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1071                j++;
1072        }
1073
1074        /* Update eSwitch status for adapters without per port eSwitch
1075         * configuration capability
1076         */
1077        if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1078                for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1079                        adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1080        }
1081
1082        kfree(pci_info);
1083        return 0;
1084
1085err_eswitch:
1086        kfree(adapter->eswitch);
1087        adapter->eswitch = NULL;
1088err_npars:
1089        kfree(adapter->npars);
1090        adapter->npars = NULL;
1091err_pci_info:
1092        kfree(pci_info);
1093
1094        return ret;
1095}
1096
1097static int
1098qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1099{
1100        u8 id;
1101        int ret;
1102        u32 data = QLCNIC_MGMT_FUNC;
1103        struct qlcnic_hardware_context *ahw = adapter->ahw;
1104
1105        ret = qlcnic_api_lock(adapter);
1106        if (ret)
1107                goto err_lock;
1108
1109        id = ahw->pci_func;
1110        data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111        data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1112               QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1113        QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1114        qlcnic_api_unlock(adapter);
1115err_lock:
1116        return ret;
1117}
1118
1119static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1120                            const struct pci_device_id *ent)
1121{
1122        u32 op_mode, priv_level;
1123
1124        /* Determine FW API version */
1125        adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1126                                                           QLCNIC_FW_API);
1127
1128        /* Find PCI function number */
1129        qlcnic_get_func_no(adapter);
1130
1131        /* Determine function privilege level */
1132        op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133        if (op_mode == QLC_DEV_DRV_DEFAULT)
1134                priv_level = QLCNIC_MGMT_FUNC;
1135        else
1136                priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1137
1138        if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1139                adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1140                dev_info(&adapter->pdev->dev,
1141                        "HAL Version: %d Non Privileged function\n",
1142                         adapter->ahw->fw_hal_version);
1143                adapter->nic_ops = &qlcnic_vf_ops;
1144        } else
1145                adapter->nic_ops = &qlcnic_ops;
1146}
1147
1148#define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1149#define QLCNIC_83XX_BAR0_LENGTH 0x4000
1150static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1151{
1152        switch (dev_id) {
1153        case PCI_DEVICE_ID_QLOGIC_QLE824X:
1154                *bar = QLCNIC_82XX_BAR0_LENGTH;
1155                break;
1156        case PCI_DEVICE_ID_QLOGIC_QLE834X:
1157        case PCI_DEVICE_ID_QLOGIC_QLE8830:
1158        case PCI_DEVICE_ID_QLOGIC_QLE844X:
1159        case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1160        case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1161        case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1162                *bar = QLCNIC_83XX_BAR0_LENGTH;
1163                break;
1164        default:
1165                *bar = 0;
1166        }
1167}
1168
1169static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1170                                struct qlcnic_hardware_context *ahw)
1171{
1172        u32 offset;
1173        void __iomem *mem_ptr0 = NULL;
1174        unsigned long mem_len, pci_len0 = 0, bar0_len;
1175
1176        /* remap phys address */
1177        mem_len = pci_resource_len(pdev, 0);
1178
1179        qlcnic_get_bar_length(pdev->device, &bar0_len);
1180        if (mem_len >= bar0_len) {
1181
1182                mem_ptr0 = pci_ioremap_bar(pdev, 0);
1183                if (mem_ptr0 == NULL) {
1184                        dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1185                        return -EIO;
1186                }
1187                pci_len0 = mem_len;
1188        } else {
1189                return -EIO;
1190        }
1191
1192        dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1193
1194        ahw->pci_base0 = mem_ptr0;
1195        ahw->pci_len0 = pci_len0;
1196        offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1197        qlcnic_get_ioaddr(ahw, offset);
1198
1199        return 0;
1200}
1201
1202static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1203                                         int index)
1204{
1205        struct pci_dev *pdev = adapter->pdev;
1206        unsigned short subsystem_vendor;
1207        bool ret = true;
1208
1209        subsystem_vendor = pdev->subsystem_vendor;
1210
1211        if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1212            pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1213                if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1214                    qlcnic_boards[index].sub_device == pdev->subsystem_device)
1215                        ret = true;
1216                else
1217                        ret = false;
1218        }
1219
1220        return ret;
1221}
1222
1223static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1224{
1225        struct pci_dev *pdev = adapter->pdev;
1226        int i, found = 0;
1227
1228        for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1229                if (qlcnic_boards[i].vendor == pdev->vendor &&
1230                    qlcnic_boards[i].device == pdev->device &&
1231                    qlcnic_validate_subsystem_id(adapter, i)) {
1232                        found = 1;
1233                        break;
1234                }
1235        }
1236
1237        if (!found)
1238                sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1239        else
1240                sprintf(name, "%pM: %s" , adapter->mac_addr,
1241                        qlcnic_boards[i].short_name);
1242}
1243
1244static void
1245qlcnic_check_options(struct qlcnic_adapter *adapter)
1246{
1247        int err;
1248        u32 fw_major, fw_minor, fw_build, prev_fw_version;
1249        struct pci_dev *pdev = adapter->pdev;
1250        struct qlcnic_hardware_context *ahw = adapter->ahw;
1251        struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1252
1253        prev_fw_version = adapter->fw_version;
1254
1255        fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1256        fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1257        fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1258
1259        adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1260
1261        err = qlcnic_get_board_info(adapter);
1262        if (err) {
1263                dev_err(&pdev->dev, "Error getting board config info.\n");
1264                return;
1265        }
1266        if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1267                if (fw_dump->tmpl_hdr == NULL ||
1268                                adapter->fw_version > prev_fw_version) {
1269                        vfree(fw_dump->tmpl_hdr);
1270                        if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1271                                dev_info(&pdev->dev,
1272                                        "Supports FW dump capability\n");
1273                }
1274        }
1275
1276        dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1277                 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1278
1279        if (adapter->ahw->port_type == QLCNIC_XGBE) {
1280                if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1281                        adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1282                        adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1283                } else {
1284                        adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1285                        adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1286                }
1287
1288                adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1289                adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290
1291        } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1292                adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1293                adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1294                adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295                adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1296        }
1297
1298        adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1299
1300        adapter->num_txd = MAX_CMD_DESCRIPTORS;
1301
1302        adapter->max_rds_rings = MAX_RDS_RINGS;
1303}
1304
1305static int
1306qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1307{
1308        struct qlcnic_info nic_info;
1309        int err = 0;
1310
1311        memset(&nic_info, 0, sizeof(struct qlcnic_info));
1312        err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1313        if (err)
1314                return err;
1315
1316        adapter->ahw->physical_port = (u8)nic_info.phys_port;
1317        adapter->ahw->switch_mode = nic_info.switch_mode;
1318        adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1319        adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1320        adapter->ahw->capabilities = nic_info.capabilities;
1321
1322        if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1323                u32 temp;
1324                temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1325                if (err == -EIO)
1326                        return err;
1327                adapter->ahw->extra_capability[0] = temp;
1328        } else {
1329                adapter->ahw->extra_capability[0] = 0;
1330        }
1331
1332        adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1333        adapter->ahw->max_mtu = nic_info.max_mtu;
1334
1335        if (adapter->ahw->capabilities & BIT_6) {
1336                adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1337                adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1338                adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1339                adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1340
1341                dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1342        } else {
1343                adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1344                adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1345                adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1346                adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1347        }
1348
1349        return err;
1350}
1351
1352void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1353                            struct qlcnic_esw_func_cfg *esw_cfg)
1354{
1355        if (esw_cfg->discard_tagged)
1356                adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1357        else
1358                adapter->flags |= QLCNIC_TAGGING_ENABLED;
1359
1360        if (esw_cfg->vlan_id) {
1361                adapter->rx_pvid = esw_cfg->vlan_id;
1362                adapter->tx_pvid = esw_cfg->vlan_id;
1363        } else {
1364                adapter->rx_pvid = 0;
1365                adapter->tx_pvid = 0;
1366        }
1367}
1368
1369static int
1370qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1371{
1372        struct qlcnic_adapter *adapter = netdev_priv(netdev);
1373        int err;
1374
1375        if (qlcnic_sriov_vf_check(adapter)) {
1376                err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1377                if (err) {
1378                        netdev_err(netdev,
1379                                   "Cannot add VLAN filter for VLAN id %d, err=%d",
1380                                   vid, err);
1381                        return err;
1382                }
1383        }
1384
1385        set_bit(vid, adapter->vlans);
1386        return 0;
1387}
1388
1389static int
1390qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1391{
1392        struct qlcnic_adapter *adapter = netdev_priv(netdev);
1393        int err;
1394
1395        if (qlcnic_sriov_vf_check(adapter)) {
1396                err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1397                if (err) {
1398                        netdev_err(netdev,
1399                                   "Cannot delete VLAN filter for VLAN id %d, err=%d",
1400                                   vid, err);
1401                        return err;
1402                }
1403        }
1404
1405        qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1406        clear_bit(vid, adapter->vlans);
1407        return 0;
1408}
1409
1410void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1411                                      struct qlcnic_esw_func_cfg *esw_cfg)
1412{
1413        adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1414                                QLCNIC_PROMISC_DISABLED);
1415
1416        if (esw_cfg->mac_anti_spoof)
1417                adapter->flags |= QLCNIC_MACSPOOF;
1418
1419        if (!esw_cfg->mac_override)
1420                adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1421
1422        if (!esw_cfg->promisc_mode)
1423                adapter->flags |= QLCNIC_PROMISC_DISABLED;
1424}
1425
1426int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1427{
1428        struct qlcnic_esw_func_cfg esw_cfg;
1429
1430        if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1431                return 0;
1432
1433        esw_cfg.pci_func = adapter->ahw->pci_func;
1434        if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1435                        return -EIO;
1436        qlcnic_set_vlan_config(adapter, &esw_cfg);
1437        qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1438        qlcnic_set_netdev_features(adapter, &esw_cfg);
1439
1440        return 0;
1441}
1442
1443void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1444                                struct qlcnic_esw_func_cfg *esw_cfg)
1445{
1446        struct net_device *netdev = adapter->netdev;
1447
1448        if (qlcnic_83xx_check(adapter))
1449                return;
1450
1451        adapter->offload_flags = esw_cfg->offload_flags;
1452        adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1453        netdev_update_features(netdev);
1454        adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1455}
1456
1457static int
1458qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1459{
1460        u32 op_mode, priv_level;
1461        int err = 0;
1462
1463        err = qlcnic_initialize_nic(adapter);
1464        if (err)
1465                return err;
1466
1467        if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1468                return 0;
1469
1470        op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1471        priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1472
1473        if (op_mode == QLC_DEV_DRV_DEFAULT)
1474                priv_level = QLCNIC_MGMT_FUNC;
1475        else
1476                priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1477
1478        if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1479                if (priv_level == QLCNIC_MGMT_FUNC) {
1480                        adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1481                        err = qlcnic_init_pci_info(adapter);
1482                        if (err)
1483                                return err;
1484                        /* Set privilege level for other functions */
1485                        qlcnic_set_function_modes(adapter);
1486                        dev_info(&adapter->pdev->dev,
1487                                "HAL Version: %d, Management function\n",
1488                                 adapter->ahw->fw_hal_version);
1489                } else if (priv_level == QLCNIC_PRIV_FUNC) {
1490                        adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1491                        dev_info(&adapter->pdev->dev,
1492                                "HAL Version: %d, Privileged function\n",
1493                                 adapter->ahw->fw_hal_version);
1494                }
1495        } else {
1496                adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1497        }
1498
1499        adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1500
1501        return err;
1502}
1503
1504int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1505{
1506        struct qlcnic_esw_func_cfg esw_cfg;
1507        struct qlcnic_npar_info *npar;
1508        u8 i;
1509
1510        if (adapter->need_fw_reset)
1511                return 0;
1512
1513        for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1514                if (!adapter->npars[i].eswitch_status)
1515                        continue;
1516
1517                memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1518                esw_cfg.pci_func = adapter->npars[i].pci_func;
1519                esw_cfg.mac_override = BIT_0;
1520                esw_cfg.promisc_mode = BIT_0;
1521                if (qlcnic_82xx_check(adapter)) {
1522                        esw_cfg.offload_flags = BIT_0;
1523                        if (QLCNIC_IS_TSO_CAPABLE(adapter))
1524                                esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1525                }
1526                if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527                        return -EIO;
1528                npar = &adapter->npars[i];
1529                npar->pvid = esw_cfg.vlan_id;
1530                npar->mac_override = esw_cfg.mac_override;
1531                npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1532                npar->discard_tagged = esw_cfg.discard_tagged;
1533                npar->promisc_mode = esw_cfg.promisc_mode;
1534                npar->offload_flags = esw_cfg.offload_flags;
1535        }
1536
1537        return 0;
1538}
1539
1540
1541static int
1542qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1543                        struct qlcnic_npar_info *npar, int pci_func)
1544{
1545        struct qlcnic_esw_func_cfg esw_cfg;
1546        esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1547        esw_cfg.pci_func = pci_func;
1548        esw_cfg.vlan_id = npar->pvid;
1549        esw_cfg.mac_override = npar->mac_override;
1550        esw_cfg.discard_tagged = npar->discard_tagged;
1551        esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1552        esw_cfg.offload_flags = npar->offload_flags;
1553        esw_cfg.promisc_mode = npar->promisc_mode;
1554        if (qlcnic_config_switch_port(adapter, &esw_cfg))
1555                return -EIO;
1556
1557        esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1558        if (qlcnic_config_switch_port(adapter, &esw_cfg))
1559                return -EIO;
1560
1561        return 0;
1562}
1563
1564int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1565{
1566        int i, err;
1567        struct qlcnic_npar_info *npar;
1568        struct qlcnic_info nic_info;
1569        u8 pci_func;
1570
1571        if (qlcnic_82xx_check(adapter))
1572                if (!adapter->need_fw_reset)
1573                        return 0;
1574
1575        /* Set the NPAR config data after FW reset */
1576        for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1577                npar = &adapter->npars[i];
1578                pci_func = npar->pci_func;
1579                if (!adapter->npars[i].eswitch_status)
1580                        continue;
1581
1582                memset(&nic_info, 0, sizeof(struct qlcnic_info));
1583                err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1584                if (err)
1585                        return err;
1586                nic_info.min_tx_bw = npar->min_bw;
1587                nic_info.max_tx_bw = npar->max_bw;
1588                err = qlcnic_set_nic_info(adapter, &nic_info);
1589                if (err)
1590                        return err;
1591
1592                if (npar->enable_pm) {
1593                        err = qlcnic_config_port_mirroring(adapter,
1594                                                           npar->dest_npar, 1,
1595                                                           pci_func);
1596                        if (err)
1597                                return err;
1598                }
1599                err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1600                if (err)
1601                        return err;
1602        }
1603        return 0;
1604}
1605
1606static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1607{
1608        u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1609        u32 npar_state;
1610
1611        if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1612                return 0;
1613
1614        npar_state = QLC_SHARED_REG_RD32(adapter,
1615                                         QLCNIC_CRB_DEV_NPAR_STATE);
1616        while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1617                msleep(1000);
1618                npar_state = QLC_SHARED_REG_RD32(adapter,
1619                                                 QLCNIC_CRB_DEV_NPAR_STATE);
1620        }
1621        if (!npar_opt_timeo) {
1622                dev_err(&adapter->pdev->dev,
1623                        "Waiting for NPAR state to operational timeout\n");
1624                return -EIO;
1625        }
1626        return 0;
1627}
1628
1629static int
1630qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1631{
1632        int err;
1633
1634        if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1635            adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1636                return 0;
1637
1638        err = qlcnic_set_default_offload_settings(adapter);
1639        if (err)
1640                return err;
1641
1642        err = qlcnic_reset_npar_config(adapter);
1643        if (err)
1644                return err;
1645
1646        qlcnic_dev_set_npar_ready(adapter);
1647
1648        return err;
1649}
1650
1651static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1652{
1653        int err;
1654
1655        err = qlcnic_can_start_firmware(adapter);
1656        if (err < 0)
1657                return err;
1658        else if (!err)
1659                goto check_fw_status;
1660
1661        if (qlcnic_load_fw_file)
1662                qlcnic_request_firmware(adapter);
1663        else {
1664                err = qlcnic_check_flash_fw_ver(adapter);
1665                if (err)
1666                        goto err_out;
1667
1668                adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1669        }
1670
1671        err = qlcnic_need_fw_reset(adapter);
1672        if (err == 0)
1673                goto check_fw_status;
1674
1675        err = qlcnic_pinit_from_rom(adapter);
1676        if (err)
1677                goto err_out;
1678
1679        err = qlcnic_load_firmware(adapter);
1680        if (err)
1681                goto err_out;
1682
1683        qlcnic_release_firmware(adapter);
1684        QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1685
1686check_fw_status:
1687        err = qlcnic_check_fw_status(adapter);
1688        if (err)
1689                goto err_out;
1690
1691        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1692        qlcnic_idc_debug_info(adapter, 1);
1693        err = qlcnic_check_eswitch_mode(adapter);
1694        if (err) {
1695                dev_err(&adapter->pdev->dev,
1696                        "Memory allocation failed for eswitch\n");
1697                goto err_out;
1698        }
1699        err = qlcnic_set_mgmt_operations(adapter);
1700        if (err)
1701                goto err_out;
1702
1703        qlcnic_check_options(adapter);
1704        adapter->need_fw_reset = 0;
1705
1706        qlcnic_release_firmware(adapter);
1707        return 0;
1708
1709err_out:
1710        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1711        dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1712
1713        qlcnic_release_firmware(adapter);
1714        return err;
1715}
1716
1717static int
1718qlcnic_request_irq(struct qlcnic_adapter *adapter)
1719{
1720        irq_handler_t handler;
1721        struct qlcnic_host_sds_ring *sds_ring;
1722        struct qlcnic_host_tx_ring *tx_ring;
1723        int err, ring, num_sds_rings;
1724
1725        unsigned long flags = 0;
1726        struct net_device *netdev = adapter->netdev;
1727        struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1728
1729        if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1730                if (qlcnic_82xx_check(adapter))
1731                        handler = qlcnic_tmp_intr;
1732                else
1733                        handler = qlcnic_83xx_tmp_intr;
1734                if (!QLCNIC_IS_MSI_FAMILY(adapter))
1735                        flags |= IRQF_SHARED;
1736
1737        } else {
1738                if (adapter->flags & QLCNIC_MSIX_ENABLED)
1739                        handler = qlcnic_msix_intr;
1740                else if (adapter->flags & QLCNIC_MSI_ENABLED)
1741                        handler = qlcnic_msi_intr;
1742                else {
1743                        flags |= IRQF_SHARED;
1744                        if (qlcnic_82xx_check(adapter))
1745                                handler = qlcnic_intr;
1746                        else
1747                                handler = qlcnic_83xx_intr;
1748                }
1749        }
1750        adapter->irq = netdev->irq;
1751
1752        if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1753                if (qlcnic_82xx_check(adapter) ||
1754                    (qlcnic_83xx_check(adapter) &&
1755                     (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1756                        num_sds_rings = adapter->drv_sds_rings;
1757                        for (ring = 0; ring < num_sds_rings; ring++) {
1758                                sds_ring = &recv_ctx->sds_rings[ring];
1759                                if (qlcnic_82xx_check(adapter) &&
1760                                    !qlcnic_check_multi_tx(adapter) &&
1761                                    (ring == (num_sds_rings - 1))) {
1762                                        if (!(adapter->flags &
1763                                              QLCNIC_MSIX_ENABLED))
1764                                                snprintf(sds_ring->name,
1765                                                         sizeof(sds_ring->name),
1766                                                         "qlcnic");
1767                                        else
1768                                                snprintf(sds_ring->name,
1769                                                         sizeof(sds_ring->name),
1770                                                         "%s-tx-0-rx-%d",
1771                                                         netdev->name, ring);
1772                                } else {
1773                                        snprintf(sds_ring->name,
1774                                                 sizeof(sds_ring->name),
1775                                                 "%s-rx-%d",
1776                                                 netdev->name, ring);
1777                                }
1778                                err = request_irq(sds_ring->irq, handler, flags,
1779                                                  sds_ring->name, sds_ring);
1780                                if (err)
1781                                        return err;
1782                        }
1783                }
1784                if ((qlcnic_82xx_check(adapter) &&
1785                     qlcnic_check_multi_tx(adapter)) ||
1786                    (qlcnic_83xx_check(adapter) &&
1787                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1788                     !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1789                        handler = qlcnic_msix_tx_intr;
1790                        for (ring = 0; ring < adapter->drv_tx_rings;
1791                             ring++) {
1792                                tx_ring = &adapter->tx_ring[ring];
1793                                snprintf(tx_ring->name, sizeof(tx_ring->name),
1794                                         "%s-tx-%d", netdev->name, ring);
1795                                err = request_irq(tx_ring->irq, handler, flags,
1796                                                  tx_ring->name, tx_ring);
1797                                if (err)
1798                                        return err;
1799                        }
1800                }
1801        }
1802        return 0;
1803}
1804
1805static void
1806qlcnic_free_irq(struct qlcnic_adapter *adapter)
1807{
1808        int ring;
1809        struct qlcnic_host_sds_ring *sds_ring;
1810        struct qlcnic_host_tx_ring *tx_ring;
1811
1812        struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1813
1814        if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1815                if (qlcnic_82xx_check(adapter) ||
1816                    (qlcnic_83xx_check(adapter) &&
1817                     (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1818                        for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1819                                sds_ring = &recv_ctx->sds_rings[ring];
1820                                free_irq(sds_ring->irq, sds_ring);
1821                        }
1822                }
1823                if ((qlcnic_83xx_check(adapter) &&
1824                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1825                    (qlcnic_82xx_check(adapter) &&
1826                     qlcnic_check_multi_tx(adapter))) {
1827                        for (ring = 0; ring < adapter->drv_tx_rings;
1828                             ring++) {
1829                                tx_ring = &adapter->tx_ring[ring];
1830                                if (tx_ring->irq)
1831                                        free_irq(tx_ring->irq, tx_ring);
1832                        }
1833                }
1834        }
1835}
1836
1837static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1838{
1839        u32 capab = 0;
1840
1841        if (qlcnic_82xx_check(adapter)) {
1842                if (adapter->ahw->extra_capability[0] &
1843                    QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1844                        adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1845        } else {
1846                capab = adapter->ahw->capabilities;
1847                if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1848                        adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1849        }
1850}
1851
1852static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1853{
1854        struct qlcnic_hardware_context *ahw = adapter->ahw;
1855        int err;
1856
1857        /* Initialize interrupt coalesce parameters */
1858        ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859
1860        if (qlcnic_83xx_check(adapter)) {
1861                ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1862                ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1863                ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1864                ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1865                ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1866
1867                err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1868        } else {
1869                ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1870                ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1871                ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1872
1873                err = qlcnic_82xx_set_rx_coalesce(adapter);
1874        }
1875
1876        return err;
1877}
1878
1879int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1880{
1881        int ring;
1882        struct qlcnic_host_rds_ring *rds_ring;
1883
1884        if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1885                return -EIO;
1886
1887        if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1888                return 0;
1889
1890        if (qlcnic_set_eswitch_port_config(adapter))
1891                return -EIO;
1892
1893        qlcnic_get_lro_mss_capability(adapter);
1894
1895        if (qlcnic_fw_create_ctx(adapter))
1896                return -EIO;
1897
1898        for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1899                rds_ring = &adapter->recv_ctx->rds_rings[ring];
1900                qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1901        }
1902
1903        qlcnic_set_multi(netdev);
1904        qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1905
1906        adapter->ahw->linkup = 0;
1907
1908        if (adapter->drv_sds_rings > 1)
1909                qlcnic_config_rss(adapter, 1);
1910
1911        qlcnic_config_def_intr_coalesce(adapter);
1912
1913        if (netdev->features & NETIF_F_LRO)
1914                qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1915
1916        set_bit(__QLCNIC_DEV_UP, &adapter->state);
1917        qlcnic_napi_enable(adapter);
1918
1919        qlcnic_linkevent_request(adapter, 1);
1920
1921        adapter->ahw->reset_context = 0;
1922        netif_tx_start_all_queues(netdev);
1923        return 0;
1924}
1925
1926int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1927{
1928        int err = 0;
1929
1930        rtnl_lock();
1931        if (netif_running(netdev))
1932                err = __qlcnic_up(adapter, netdev);
1933        rtnl_unlock();
1934
1935        return err;
1936}
1937
1938void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1939{
1940        int ring;
1941
1942        if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1943                return;
1944
1945        if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1946                return;
1947
1948        smp_mb();
1949        netif_carrier_off(netdev);
1950        adapter->ahw->linkup = 0;
1951        netif_tx_disable(netdev);
1952
1953        qlcnic_free_mac_list(adapter);
1954
1955        if (adapter->fhash.fnum)
1956                qlcnic_delete_lb_filters(adapter);
1957
1958        qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1959        if (qlcnic_sriov_vf_check(adapter))
1960                qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1961
1962        qlcnic_napi_disable(adapter);
1963
1964        qlcnic_fw_destroy_ctx(adapter);
1965        adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1966
1967        qlcnic_reset_rx_buffers_list(adapter);
1968
1969        for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1970                qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1971}
1972
1973/* Usage: During suspend and firmware recovery module */
1974
1975void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1976{
1977        rtnl_lock();
1978        if (netif_running(netdev))
1979                __qlcnic_down(adapter, netdev);
1980        rtnl_unlock();
1981
1982}
1983
1984int
1985qlcnic_attach(struct qlcnic_adapter *adapter)
1986{
1987        struct net_device *netdev = adapter->netdev;
1988        struct pci_dev *pdev = adapter->pdev;
1989        int err;
1990
1991        if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1992                return 0;
1993
1994        err = qlcnic_napi_add(adapter, netdev);
1995        if (err)
1996                return err;
1997
1998        err = qlcnic_alloc_sw_resources(adapter);
1999        if (err) {
2000                dev_err(&pdev->dev, "Error in setting sw resources\n");
2001                goto err_out_napi_del;
2002        }
2003
2004        err = qlcnic_alloc_hw_resources(adapter);
2005        if (err) {
2006                dev_err(&pdev->dev, "Error in setting hw resources\n");
2007                goto err_out_free_sw;
2008        }
2009
2010        err = qlcnic_request_irq(adapter);
2011        if (err) {
2012                dev_err(&pdev->dev, "failed to setup interrupt\n");
2013                goto err_out_free_hw;
2014        }
2015
2016        qlcnic_create_sysfs_entries(adapter);
2017
2018#ifdef CONFIG_QLCNIC_VXLAN
2019        if (qlcnic_encap_rx_offload(adapter))
2020                vxlan_get_rx_port(netdev);
2021#endif
2022
2023        adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2024        return 0;
2025
2026err_out_free_hw:
2027        qlcnic_free_hw_resources(adapter);
2028err_out_free_sw:
2029        qlcnic_free_sw_resources(adapter);
2030err_out_napi_del:
2031        qlcnic_napi_del(adapter);
2032        return err;
2033}
2034
2035void qlcnic_detach(struct qlcnic_adapter *adapter)
2036{
2037        if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2038                return;
2039
2040        qlcnic_remove_sysfs_entries(adapter);
2041
2042        qlcnic_free_hw_resources(adapter);
2043        qlcnic_release_rx_buffers(adapter);
2044        qlcnic_free_irq(adapter);
2045        qlcnic_napi_del(adapter);
2046        qlcnic_free_sw_resources(adapter);
2047
2048        adapter->is_up = 0;
2049}
2050
2051void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2052{
2053        struct qlcnic_adapter *adapter = netdev_priv(netdev);
2054        struct qlcnic_host_sds_ring *sds_ring;
2055        int drv_tx_rings = adapter->drv_tx_rings;
2056        int ring;
2057
2058        clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2059        if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2060                for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2061                        sds_ring = &adapter->recv_ctx->sds_rings[ring];
2062                        qlcnic_disable_sds_intr(adapter, sds_ring);
2063                }
2064        }
2065
2066        qlcnic_fw_destroy_ctx(adapter);
2067
2068        qlcnic_detach(adapter);
2069
2070        adapter->ahw->diag_test = 0;
2071        adapter->drv_sds_rings = drv_sds_rings;
2072        adapter->drv_tx_rings = drv_tx_rings;
2073
2074        if (qlcnic_attach(adapter))
2075                goto out;
2076
2077        if (netif_running(netdev))
2078                __qlcnic_up(adapter, netdev);
2079out:
2080        netif_device_attach(netdev);
2081}
2082
2083static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2084{
2085        struct qlcnic_hardware_context *ahw = adapter->ahw;
2086        int err = 0;
2087
2088        adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2089                                GFP_KERNEL);
2090        if (!adapter->recv_ctx) {
2091                err = -ENOMEM;
2092                goto err_out;
2093        }
2094
2095        if (qlcnic_83xx_check(adapter)) {
2096                ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2097                ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2098                ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2099                ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2100                ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2101        } else {
2102                ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2103                ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2104                ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2105        }
2106
2107        /* clear stats */
2108        memset(&adapter->stats, 0, sizeof(adapter->stats));
2109err_out:
2110        return err;
2111}
2112
2113static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2114{
2115        struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2116
2117        kfree(adapter->recv_ctx);
2118        adapter->recv_ctx = NULL;
2119
2120        if (fw_dump->tmpl_hdr) {
2121                vfree(fw_dump->tmpl_hdr);
2122                fw_dump->tmpl_hdr = NULL;
2123        }
2124
2125        if (fw_dump->dma_buffer) {
2126                dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2127                                  fw_dump->dma_buffer, fw_dump->phys_addr);
2128                fw_dump->dma_buffer = NULL;
2129        }
2130
2131        kfree(adapter->ahw->reset.buff);
2132        adapter->ahw->fw_dump.tmpl_hdr = NULL;
2133}
2134
2135int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2136{
2137        struct qlcnic_adapter *adapter = netdev_priv(netdev);
2138        struct qlcnic_host_sds_ring *sds_ring;
2139        struct qlcnic_host_rds_ring *rds_ring;
2140        int ring;
2141        int ret;
2142
2143        netif_device_detach(netdev);
2144
2145        if (netif_running(netdev))
2146                __qlcnic_down(adapter, netdev);
2147
2148        qlcnic_detach(adapter);
2149
2150        adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2151        adapter->ahw->diag_test = test;
2152        adapter->ahw->linkup = 0;
2153
2154        ret = qlcnic_attach(adapter);
2155        if (ret) {
2156                netif_device_attach(netdev);
2157                return ret;
2158        }
2159
2160        ret = qlcnic_fw_create_ctx(adapter);
2161        if (ret) {
2162                qlcnic_detach(adapter);
2163                netif_device_attach(netdev);
2164                return ret;
2165        }
2166
2167        for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2168                rds_ring = &adapter->recv_ctx->rds_rings[ring];
2169                qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2170        }
2171
2172        if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2173                for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2174                        sds_ring = &adapter->recv_ctx->sds_rings[ring];
2175                        qlcnic_enable_sds_intr(adapter, sds_ring);
2176                }
2177        }
2178
2179        if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2180                adapter->ahw->loopback_state = 0;
2181                qlcnic_linkevent_request(adapter, 1);
2182        }
2183
2184        set_bit(__QLCNIC_DEV_UP, &adapter->state);
2185
2186        return 0;
2187}
2188
2189/* Reset context in hardware only */
2190static int
2191qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2192{
2193        struct net_device *netdev = adapter->netdev;
2194
2195        if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2196                return -EBUSY;
2197
2198        netif_device_detach(netdev);
2199
2200        qlcnic_down(adapter, netdev);
2201
2202        qlcnic_up(adapter, netdev);
2203
2204        netif_device_attach(netdev);
2205
2206        clear_bit(__QLCNIC_RESETTING, &adapter->state);
2207        netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2208        return 0;
2209}
2210
2211int
2212qlcnic_reset_context(struct qlcnic_adapter *adapter)
2213{
2214        int err = 0;
2215        struct net_device *netdev = adapter->netdev;
2216
2217        if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2218                return -EBUSY;
2219
2220        if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2221
2222                netif_device_detach(netdev);
2223
2224                if (netif_running(netdev))
2225                        __qlcnic_down(adapter, netdev);
2226
2227                qlcnic_detach(adapter);
2228
2229                if (netif_running(netdev)) {
2230                        err = qlcnic_attach(adapter);
2231                        if (!err) {
2232                                __qlcnic_up(adapter, netdev);
2233                                qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2234                        }
2235                }
2236
2237                netif_device_attach(netdev);
2238        }
2239
2240        clear_bit(__QLCNIC_RESETTING, &adapter->state);
2241        return err;
2242}
2243
2244static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2245{
2246        struct qlcnic_hardware_context *ahw = adapter->ahw;
2247        u16 act_pci_fn = ahw->total_nic_func;
2248        u16 count;
2249
2250        ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2251        if (act_pci_fn <= 2)
2252                count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2253                         act_pci_fn;
2254        else
2255                count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2256                         act_pci_fn;
2257        ahw->max_uc_count = count;
2258}
2259
2260static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2261                                      u8 tx_queues, u8 rx_queues)
2262{
2263        struct net_device *netdev = adapter->netdev;
2264        int err = 0;
2265
2266        if (tx_queues) {
2267                err = netif_set_real_num_tx_queues(netdev, tx_queues);
2268                if (err) {
2269                        netdev_err(netdev, "failed to set %d Tx queues\n",
2270                                   tx_queues);
2271                        return err;
2272                }
2273        }
2274
2275        if (rx_queues) {
2276                err = netif_set_real_num_rx_queues(netdev, rx_queues);
2277                if (err)
2278                        netdev_err(netdev, "failed to set %d Rx queues\n",
2279                                   rx_queues);
2280        }
2281
2282        return err;
2283}
2284
2285int
2286qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2287                    int pci_using_dac)
2288{
2289        int err;
2290        struct pci_dev *pdev = adapter->pdev;
2291
2292        adapter->rx_csum = 1;
2293        adapter->ahw->mc_enabled = 0;
2294        qlcnic_set_mac_filter_count(adapter);
2295
2296        netdev->netdev_ops         = &qlcnic_netdev_ops;
2297        netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2298
2299        qlcnic_change_mtu(netdev, netdev->mtu);
2300
2301        netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2302                &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2303
2304        netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2305                             NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2306                             NETIF_F_HW_VLAN_CTAG_RX);
2307        netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2308                                  NETIF_F_IPV6_CSUM);
2309
2310        if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2311                netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2312                netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2313        }
2314
2315        if (pci_using_dac) {
2316                netdev->features |= NETIF_F_HIGHDMA;
2317                netdev->vlan_features |= NETIF_F_HIGHDMA;
2318        }
2319
2320        if (qlcnic_vlan_tx_check(adapter))
2321                netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2322
2323        if (qlcnic_sriov_vf_check(adapter))
2324                netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2325
2326        if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2327                netdev->features |= NETIF_F_LRO;
2328
2329        if (qlcnic_encap_tx_offload(adapter)) {
2330                netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2331
2332                /* encapsulation Tx offload supported by Adapter */
2333                netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2334                                          NETIF_F_GSO_UDP_TUNNEL |
2335                                          NETIF_F_TSO            |
2336                                          NETIF_F_TSO6;
2337        }
2338
2339        if (qlcnic_encap_rx_offload(adapter))
2340                netdev->hw_enc_features |= NETIF_F_RXCSUM;
2341
2342        netdev->hw_features = netdev->features;
2343        netdev->priv_flags |= IFF_UNICAST_FLT;
2344        netdev->irq = adapter->msix_entries[0].vector;
2345
2346        err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2347                                         adapter->drv_sds_rings);
2348        if (err)
2349                return err;
2350
2351        qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2352
2353        err = register_netdev(netdev);
2354        if (err) {
2355                dev_err(&pdev->dev, "failed to register net device\n");
2356                return err;
2357        }
2358
2359        return 0;
2360}
2361
2362static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2363{
2364        if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2365                        !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2366                *pci_using_dac = 1;
2367        else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2368                        !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2369                *pci_using_dac = 0;
2370        else {
2371                dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2372                return -EIO;
2373        }
2374
2375        return 0;
2376}
2377
2378void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2379{
2380        int ring;
2381        struct qlcnic_host_tx_ring *tx_ring;
2382
2383        for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2384                tx_ring = &adapter->tx_ring[ring];
2385                if (tx_ring) {
2386                        vfree(tx_ring->cmd_buf_arr);
2387                        tx_ring->cmd_buf_arr = NULL;
2388                }
2389        }
2390        kfree(adapter->tx_ring);
2391}
2392
2393int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2394                          struct net_device *netdev)
2395{
2396        int ring, vector, index;
2397        struct qlcnic_host_tx_ring *tx_ring;
2398        struct qlcnic_cmd_buffer *cmd_buf_arr;
2399
2400        tx_ring = kcalloc(adapter->drv_tx_rings,
2401                          sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2402        if (tx_ring == NULL)
2403                return -ENOMEM;
2404
2405        adapter->tx_ring = tx_ring;
2406
2407        for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2408                tx_ring = &adapter->tx_ring[ring];
2409                tx_ring->num_desc = adapter->num_txd;
2410                tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2411                cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2412                if (cmd_buf_arr == NULL) {
2413                        qlcnic_free_tx_rings(adapter);
2414                        return -ENOMEM;
2415                }
2416                tx_ring->cmd_buf_arr = cmd_buf_arr;
2417                spin_lock_init(&tx_ring->tx_clean_lock);
2418        }
2419
2420        if (qlcnic_83xx_check(adapter) ||
2421            (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2422                for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2423                        tx_ring = &adapter->tx_ring[ring];
2424                        tx_ring->adapter = adapter;
2425                        if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2426                                index = adapter->drv_sds_rings + ring;
2427                                vector = adapter->msix_entries[index].vector;
2428                                tx_ring->irq = vector;
2429                        }
2430                }
2431        }
2432
2433        return 0;
2434}
2435
2436void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2437{
2438        struct qlcnic_hardware_context *ahw = adapter->ahw;
2439        u32 fw_cmd = 0;
2440
2441        if (qlcnic_82xx_check(adapter))
2442                fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2443        else if (qlcnic_83xx_check(adapter))
2444                fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2445
2446        if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2447                qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2448}
2449
2450/* Reset firmware API lock */
2451static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2452{
2453        qlcnic_api_lock(adapter);
2454        qlcnic_api_unlock(adapter);
2455}
2456
2457
2458static int
2459qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2460{
2461        struct net_device *netdev = NULL;
2462        struct qlcnic_adapter *adapter = NULL;
2463        struct qlcnic_hardware_context *ahw;
2464        int err, pci_using_dac = -1;
2465        char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2466
2467        err = pci_enable_device(pdev);
2468        if (err)
2469                return err;
2470
2471        if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2472                err = -ENODEV;
2473                goto err_out_disable_pdev;
2474        }
2475
2476        err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2477        if (err)
2478                goto err_out_disable_pdev;
2479
2480        err = pci_request_regions(pdev, qlcnic_driver_name);
2481        if (err)
2482                goto err_out_disable_pdev;
2483
2484        pci_set_master(pdev);
2485        pci_enable_pcie_error_reporting(pdev);
2486
2487        ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2488        if (!ahw) {
2489                err = -ENOMEM;
2490                goto err_out_free_res;
2491        }
2492
2493        switch (ent->device) {
2494        case PCI_DEVICE_ID_QLOGIC_QLE824X:
2495                ahw->hw_ops = &qlcnic_hw_ops;
2496                ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2497                break;
2498        case PCI_DEVICE_ID_QLOGIC_QLE834X:
2499        case PCI_DEVICE_ID_QLOGIC_QLE8830:
2500        case PCI_DEVICE_ID_QLOGIC_QLE844X:
2501                qlcnic_83xx_register_map(ahw);
2502                break;
2503        case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2504        case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2505        case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2506                qlcnic_sriov_vf_register_map(ahw);
2507                break;
2508        default:
2509                goto err_out_free_hw_res;
2510        }
2511
2512        err = qlcnic_setup_pci_map(pdev, ahw);
2513        if (err)
2514                goto err_out_free_hw_res;
2515
2516        netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2517                                   QLCNIC_MAX_TX_RINGS);
2518        if (!netdev) {
2519                err = -ENOMEM;
2520                goto err_out_iounmap;
2521        }
2522
2523        SET_NETDEV_DEV(netdev, &pdev->dev);
2524
2525        adapter = netdev_priv(netdev);
2526        adapter->netdev  = netdev;
2527        adapter->pdev    = pdev;
2528        adapter->ahw = ahw;
2529
2530        adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2531        if (adapter->qlcnic_wq == NULL) {
2532                err = -ENOMEM;
2533                dev_err(&pdev->dev, "Failed to create workqueue\n");
2534                goto err_out_free_netdev;
2535        }
2536
2537        err = qlcnic_alloc_adapter_resources(adapter);
2538        if (err)
2539                goto err_out_free_wq;
2540
2541        adapter->dev_rst_time = jiffies;
2542        ahw->revision_id = pdev->revision;
2543        ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2544        if (qlcnic_mac_learn == FDB_MAC_LEARN)
2545                adapter->fdb_mac_learn = true;
2546        else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2547                adapter->drv_mac_learn = true;
2548
2549        rwlock_init(&adapter->ahw->crb_lock);
2550        mutex_init(&adapter->ahw->mem_lock);
2551
2552        INIT_LIST_HEAD(&adapter->mac_list);
2553
2554        qlcnic_register_dcb(adapter);
2555
2556        if (qlcnic_82xx_check(adapter)) {
2557                qlcnic_check_vf(adapter, ent);
2558                adapter->portnum = adapter->ahw->pci_func;
2559                qlcnic_reset_api_lock(adapter);
2560                err = qlcnic_start_firmware(adapter);
2561                if (err) {
2562                        dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2563                                "\t\tIf reboot doesn't help, try flashing the card\n");
2564                        goto err_out_maintenance_mode;
2565                }
2566
2567                /* compute and set default and max tx/sds rings */
2568                if (adapter->ahw->msix_supported) {
2569                        if (qlcnic_check_multi_tx_capability(adapter) == 1)
2570                                qlcnic_set_tx_ring_count(adapter,
2571                                                         QLCNIC_SINGLE_RING);
2572                        else
2573                                qlcnic_set_tx_ring_count(adapter,
2574                                                         QLCNIC_DEF_TX_RINGS);
2575                        qlcnic_set_sds_ring_count(adapter,
2576                                                  QLCNIC_DEF_SDS_RINGS);
2577                } else {
2578                        qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2579                        qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2580                }
2581
2582                err = qlcnic_setup_idc_param(adapter);
2583                if (err)
2584                        goto err_out_free_hw;
2585
2586                adapter->flags |= QLCNIC_NEED_FLR;
2587
2588        } else if (qlcnic_83xx_check(adapter)) {
2589                qlcnic_83xx_check_vf(adapter, ent);
2590                adapter->portnum = adapter->ahw->pci_func;
2591                err = qlcnic_83xx_init(adapter, pci_using_dac);
2592                if (err) {
2593                        switch (err) {
2594                        case -ENOTRECOVERABLE:
2595                                dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2596                                dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2597                                goto err_out_free_hw;
2598                        case -ENOMEM:
2599                                dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2600                                goto err_out_free_hw;
2601                        case -EOPNOTSUPP:
2602                                dev_err(&pdev->dev, "Adapter initialization failed\n");
2603                                goto err_out_free_hw;
2604                        default:
2605                                dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2606                                goto err_out_maintenance_mode;
2607                        }
2608                }
2609
2610                if (qlcnic_sriov_vf_check(adapter))
2611                        return 0;
2612        } else {
2613                dev_err(&pdev->dev,
2614                        "%s: failed. Please Reboot\n", __func__);
2615                err = -ENODEV;
2616                goto err_out_free_hw;
2617        }
2618
2619        if (qlcnic_read_mac_addr(adapter))
2620                dev_warn(&pdev->dev, "failed to read mac addr\n");
2621
2622        qlcnic_read_phys_port_id(adapter);
2623
2624        if (adapter->portnum == 0) {
2625                qlcnic_get_board_name(adapter, board_name);
2626
2627                pr_info("%s: %s Board Chip rev 0x%x\n",
2628                        module_name(THIS_MODULE),
2629                        board_name, adapter->ahw->revision_id);
2630        }
2631
2632        if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2633            !!qlcnic_use_msi)
2634                dev_warn(&pdev->dev,
2635                         "Device does not support MSI interrupts\n");
2636
2637        if (qlcnic_82xx_check(adapter)) {
2638                qlcnic_dcb_enable(adapter->dcb);
2639                qlcnic_dcb_get_info(adapter->dcb);
2640                err = qlcnic_setup_intr(adapter);
2641
2642                if (err) {
2643                        dev_err(&pdev->dev, "Failed to setup interrupt\n");
2644                        goto err_out_disable_msi;
2645                }
2646        }
2647
2648        err = qlcnic_get_act_pci_func(adapter);
2649        if (err)
2650                goto err_out_disable_mbx_intr;
2651
2652        if (adapter->portnum == 0)
2653                qlcnic_set_drv_version(adapter);
2654
2655        err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2656        if (err)
2657                goto err_out_disable_mbx_intr;
2658
2659        pci_set_drvdata(pdev, adapter);
2660
2661        if (qlcnic_82xx_check(adapter))
2662                qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2663                                     FW_POLL_DELAY);
2664
2665        switch (adapter->ahw->port_type) {
2666        case QLCNIC_GBE:
2667                dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2668                                adapter->netdev->name);
2669                break;
2670        case QLCNIC_XGBE:
2671                dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2672                                adapter->netdev->name);
2673                break;
2674        }
2675
2676        if (adapter->drv_mac_learn)
2677                qlcnic_alloc_lb_filters_mem(adapter);
2678
2679        qlcnic_add_sysfs(adapter);
2680        qlcnic_register_hwmon_dev(adapter);
2681        return 0;
2682
2683err_out_disable_mbx_intr:
2684        if (qlcnic_83xx_check(adapter))
2685                qlcnic_83xx_free_mbx_intr(adapter);
2686
2687err_out_disable_msi:
2688        qlcnic_teardown_intr(adapter);
2689        qlcnic_cancel_idc_work(adapter);
2690        qlcnic_clr_all_drv_state(adapter, 0);
2691
2692err_out_free_hw:
2693        qlcnic_free_adapter_resources(adapter);
2694
2695err_out_free_wq:
2696        destroy_workqueue(adapter->qlcnic_wq);
2697
2698err_out_free_netdev:
2699        free_netdev(netdev);
2700
2701err_out_iounmap:
2702        qlcnic_cleanup_pci_map(ahw);
2703
2704err_out_free_hw_res:
2705        kfree(ahw);
2706
2707err_out_free_res:
2708        pci_release_regions(pdev);
2709
2710err_out_disable_pdev:
2711        pci_disable_device(pdev);
2712        return err;
2713
2714err_out_maintenance_mode:
2715        set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2716        netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2717        netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2718        ahw->port_type = QLCNIC_XGBE;
2719
2720        if (qlcnic_83xx_check(adapter))
2721                adapter->tgt_status_reg = NULL;
2722        else
2723                ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2724
2725        err = register_netdev(netdev);
2726
2727        if (err) {
2728                dev_err(&pdev->dev, "Failed to register net device\n");
2729                qlcnic_clr_all_drv_state(adapter, 0);
2730                goto err_out_free_hw;
2731        }
2732
2733        pci_set_drvdata(pdev, adapter);
2734        qlcnic_add_sysfs(adapter);
2735
2736        return 0;
2737}
2738
2739static void qlcnic_remove(struct pci_dev *pdev)
2740{
2741        struct qlcnic_adapter *adapter;
2742        struct net_device *netdev;
2743        struct qlcnic_hardware_context *ahw;
2744
2745        adapter = pci_get_drvdata(pdev);
2746        if (adapter == NULL)
2747                return;
2748
2749        netdev = adapter->netdev;
2750
2751        qlcnic_cancel_idc_work(adapter);
2752        qlcnic_sriov_pf_disable(adapter);
2753        ahw = adapter->ahw;
2754
2755        unregister_netdev(netdev);
2756        qlcnic_sriov_cleanup(adapter);
2757
2758        if (qlcnic_83xx_check(adapter)) {
2759                qlcnic_83xx_initialize_nic(adapter, 0);
2760                cancel_delayed_work_sync(&adapter->idc_aen_work);
2761                qlcnic_83xx_free_mbx_intr(adapter);
2762                qlcnic_83xx_detach_mailbox_work(adapter);
2763                qlcnic_83xx_free_mailbox(ahw->mailbox);
2764                kfree(ahw->fw_info);
2765        }
2766
2767        qlcnic_dcb_free(adapter->dcb);
2768        qlcnic_detach(adapter);
2769        kfree(adapter->npars);
2770        kfree(adapter->eswitch);
2771
2772        if (qlcnic_82xx_check(adapter))
2773                qlcnic_clr_all_drv_state(adapter, 0);
2774
2775        clear_bit(__QLCNIC_RESETTING, &adapter->state);
2776
2777        qlcnic_free_lb_filters_mem(adapter);
2778
2779        qlcnic_teardown_intr(adapter);
2780
2781        qlcnic_remove_sysfs(adapter);
2782
2783        qlcnic_unregister_hwmon_dev(adapter);
2784
2785        qlcnic_cleanup_pci_map(adapter->ahw);
2786
2787        qlcnic_release_firmware(adapter);
2788
2789        pci_disable_pcie_error_reporting(pdev);
2790        pci_release_regions(pdev);
2791        pci_disable_device(pdev);
2792
2793        if (adapter->qlcnic_wq) {
2794                destroy_workqueue(adapter->qlcnic_wq);
2795                adapter->qlcnic_wq = NULL;
2796        }
2797
2798        qlcnic_free_adapter_resources(adapter);
2799        kfree(ahw);
2800        free_netdev(netdev);
2801}
2802
2803static void qlcnic_shutdown(struct pci_dev *pdev)
2804{
2805        if (__qlcnic_shutdown(pdev))
2806                return;
2807
2808        pci_disable_device(pdev);
2809}
2810
2811#ifdef CONFIG_PM
2812static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2813{
2814        int retval;
2815
2816        retval = __qlcnic_shutdown(pdev);
2817        if (retval)
2818                return retval;
2819
2820        pci_set_power_state(pdev, pci_choose_state(pdev, state));
2821        return 0;
2822}
2823
2824static int qlcnic_resume(struct pci_dev *pdev)
2825{
2826        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2827        int err;
2828
2829        err = pci_enable_device(pdev);
2830        if (err)
2831                return err;
2832
2833        pci_set_power_state(pdev, PCI_D0);
2834        pci_set_master(pdev);
2835        pci_restore_state(pdev);
2836
2837        return  __qlcnic_resume(adapter);
2838}
2839#endif
2840
2841static int qlcnic_open(struct net_device *netdev)
2842{
2843        struct qlcnic_adapter *adapter = netdev_priv(netdev);
2844        int err;
2845
2846        if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2847                netdev_err(netdev, "%s: Device is in non-operational state\n",
2848                           __func__);
2849
2850                return -EIO;
2851        }
2852
2853        netif_carrier_off(netdev);
2854
2855        err = qlcnic_attach(adapter);
2856        if (err)
2857                return err;
2858
2859        err = __qlcnic_up(adapter, netdev);
2860        if (err)
2861                qlcnic_detach(adapter);
2862
2863        return err;
2864}
2865
2866/*
2867 * qlcnic_close - Disables a network interface entry point
2868 */
2869static int qlcnic_close(struct net_device *netdev)
2870{
2871        struct qlcnic_adapter *adapter = netdev_priv(netdev);
2872
2873        __qlcnic_down(adapter, netdev);
2874
2875        return 0;
2876}
2877
2878#define QLCNIC_VF_LB_BUCKET_SIZE 1
2879
2880void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2881{
2882        void *head;
2883        int i;
2884        struct net_device *netdev = adapter->netdev;
2885        u32 filter_size = 0;
2886        u16 act_pci_func = 0;
2887
2888        if (adapter->fhash.fmax && adapter->fhash.fhead)
2889                return;
2890
2891        act_pci_func = adapter->ahw->total_nic_func;
2892        spin_lock_init(&adapter->mac_learn_lock);
2893        spin_lock_init(&adapter->rx_mac_learn_lock);
2894
2895        if (qlcnic_sriov_vf_check(adapter)) {
2896                filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2897                adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2898        } else if (qlcnic_82xx_check(adapter)) {
2899                filter_size = QLCNIC_LB_MAX_FILTERS;
2900                adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2901        } else {
2902                filter_size = QLC_83XX_LB_MAX_FILTERS;
2903                adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2904        }
2905
2906        head = kcalloc(adapter->fhash.fbucket_size,
2907                       sizeof(struct hlist_head), GFP_ATOMIC);
2908
2909        if (!head)
2910                return;
2911
2912        adapter->fhash.fmax = (filter_size / act_pci_func);
2913        adapter->fhash.fhead = head;
2914
2915        netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2916                    act_pci_func, adapter->fhash.fmax);
2917
2918        for (i = 0; i < adapter->fhash.fbucket_size; i++)
2919                INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2920
2921        adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2922
2923        head = kcalloc(adapter->rx_fhash.fbucket_size,
2924                       sizeof(struct hlist_head), GFP_ATOMIC);
2925
2926        if (!head)
2927                return;
2928
2929        adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2930        adapter->rx_fhash.fhead = head;
2931
2932        for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2933                INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2934}
2935
2936static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2937{
2938        if (adapter->fhash.fmax)
2939                kfree(adapter->fhash.fhead);
2940
2941        adapter->fhash.fhead = NULL;
2942        adapter->fhash.fmax = 0;
2943
2944        if (adapter->rx_fhash.fmax)
2945                kfree(adapter->rx_fhash.fhead);
2946
2947        adapter->rx_fhash.fmax = 0;
2948        adapter->rx_fhash.fhead = NULL;
2949}
2950
2951int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2952{
2953        struct net_device *netdev = adapter->netdev;
2954        u32 temp_state, temp_val, temp = 0;
2955        int rv = 0;
2956
2957        if (qlcnic_83xx_check(adapter))
2958                temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2959
2960        if (qlcnic_82xx_check(adapter))
2961                temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2962
2963        temp_state = qlcnic_get_temp_state(temp);
2964        temp_val = qlcnic_get_temp_val(temp);
2965
2966        if (temp_state == QLCNIC_TEMP_PANIC) {
2967                dev_err(&netdev->dev,
2968                       "Device temperature %d degrees C exceeds"
2969                       " maximum allowed. Hardware has been shut down.\n",
2970                       temp_val);
2971                rv = 1;
2972        } else if (temp_state == QLCNIC_TEMP_WARN) {
2973                if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2974                        dev_err(&netdev->dev,
2975                               "Device temperature %d degrees C "
2976                               "exceeds operating range."
2977                               " Immediate action needed.\n",
2978                               temp_val);
2979                }
2980        } else {
2981                if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2982                        dev_info(&netdev->dev,
2983                               "Device temperature is now %d degrees C"
2984                               " in normal range.\n", temp_val);
2985                }
2986        }
2987        adapter->ahw->temp = temp_state;
2988        return rv;
2989}
2990
2991static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2992{
2993        int i;
2994        struct cmd_desc_type0 *tx_desc_info;
2995
2996        for (i = 0; i < tx_ring->num_desc; i++) {
2997                tx_desc_info = &tx_ring->desc_head[i];
2998                pr_info("TX Desc: %d\n", i);
2999                print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3000                               &tx_ring->desc_head[i],
3001                               sizeof(struct cmd_desc_type0), true);
3002        }
3003}
3004
3005static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3006{
3007        struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3008        struct net_device *netdev = adapter->netdev;
3009        struct qlcnic_host_rds_ring *rds_ring;
3010        struct qlcnic_host_sds_ring *sds_ring;
3011        struct qlcnic_host_tx_ring *tx_ring;
3012        int ring;
3013
3014        if (!netdev || !netif_running(netdev))
3015                return;
3016
3017        for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3018                rds_ring = &recv_ctx->rds_rings[ring];
3019                if (!rds_ring)
3020                        continue;
3021                netdev_info(netdev,
3022                            "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3023                             ring, readl(rds_ring->crb_rcv_producer),
3024                             rds_ring->producer, rds_ring->num_desc);
3025        }
3026
3027        for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3028                sds_ring = &(recv_ctx->sds_rings[ring]);
3029                if (!sds_ring)
3030                        continue;
3031                netdev_info(netdev,
3032                            "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3033                            ring, readl(sds_ring->crb_sts_consumer),
3034                            sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3035                            sds_ring->num_desc);
3036        }
3037
3038        for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3039                tx_ring = &adapter->tx_ring[ring];
3040                if (!tx_ring)
3041                        continue;
3042                netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3043                            ring, tx_ring->ctx_id);
3044                netdev_info(netdev,
3045                            "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3046                            tx_ring->tx_stats.xmit_finished,
3047                            tx_ring->tx_stats.xmit_called,
3048                            tx_ring->tx_stats.xmit_on,
3049                            tx_ring->tx_stats.xmit_off);
3050
3051                if (tx_ring->crb_intr_mask)
3052                        netdev_info(netdev, "crb_intr_mask=%d\n",
3053                                    readl(tx_ring->crb_intr_mask));
3054
3055                netdev_info(netdev,
3056                            "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3057                            readl(tx_ring->crb_cmd_producer),
3058                            tx_ring->producer, tx_ring->sw_consumer,
3059                            le32_to_cpu(*(tx_ring->hw_consumer)));
3060
3061                netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3062                            tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3063
3064                if (netif_msg_tx_err(adapter->ahw))
3065                        dump_tx_ring_desc(tx_ring);
3066        }
3067
3068}
3069
3070static void qlcnic_tx_timeout(struct net_device *netdev)
3071{
3072        struct qlcnic_adapter *adapter = netdev_priv(netdev);
3073
3074        if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3075                return;
3076
3077        qlcnic_dump_rings(adapter);
3078
3079        if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3080            netif_msg_tx_err(adapter->ahw)) {
3081                netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3082                if (qlcnic_82xx_check(adapter))
3083                        adapter->need_fw_reset = 1;
3084                else if (qlcnic_83xx_check(adapter))
3085                        qlcnic_83xx_idc_request_reset(adapter,
3086                                                      QLCNIC_FORCE_FW_DUMP_KEY);
3087        } else {
3088                netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3089                adapter->ahw->reset_context = 1;
3090        }
3091}
3092
3093static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3094{
3095        struct qlcnic_adapter *adapter = netdev_priv(netdev);
3096        struct net_device_stats *stats = &netdev->stats;
3097
3098        if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3099                qlcnic_update_stats(adapter);
3100
3101        stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3102        stats->tx_packets = adapter->stats.xmitfinished;
3103        stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3104        stats->tx_bytes = adapter->stats.txbytes;
3105        stats->rx_dropped = adapter->stats.rxdropped;
3106        stats->tx_dropped = adapter->stats.txdropped;
3107
3108        return stats;
3109}
3110
3111static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3112{
3113        u32 status;
3114
3115        status = readl(adapter->isr_int_vec);
3116
3117        if (!(status & adapter->ahw->int_vec_bit))
3118                return IRQ_NONE;
3119
3120        /* check interrupt state machine, to be sure */
3121        status = readl(adapter->crb_int_state_reg);
3122        if (!ISR_LEGACY_INT_TRIGGERED(status))
3123                return IRQ_NONE;
3124
3125        writel(0xffffffff, adapter->tgt_status_reg);
3126        /* read twice to ensure write is flushed */
3127        readl(adapter->isr_int_vec);
3128        readl(adapter->isr_int_vec);
3129
3130        return IRQ_HANDLED;
3131}
3132
3133static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3134{
3135        struct qlcnic_host_sds_ring *sds_ring = data;
3136        struct qlcnic_adapter *adapter = sds_ring->adapter;
3137
3138        if (adapter->flags & QLCNIC_MSIX_ENABLED)
3139                goto done;
3140        else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3141                writel(0xffffffff, adapter->tgt_status_reg);
3142                goto done;
3143        }
3144
3145        if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3146                return IRQ_NONE;
3147
3148done:
3149        adapter->ahw->diag_cnt++;
3150        qlcnic_enable_sds_intr(adapter, sds_ring);
3151        return IRQ_HANDLED;
3152}
3153
3154static irqreturn_t qlcnic_intr(int irq, void *data)
3155{
3156        struct qlcnic_host_sds_ring *sds_ring = data;
3157        struct qlcnic_adapter *adapter = sds_ring->adapter;
3158
3159        if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3160                return IRQ_NONE;
3161
3162        napi_schedule(&sds_ring->napi);
3163
3164        return IRQ_HANDLED;
3165}
3166
3167static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3168{
3169        struct qlcnic_host_sds_ring *sds_ring = data;
3170        struct qlcnic_adapter *adapter = sds_ring->adapter;
3171
3172        /* clear interrupt */
3173        writel(0xffffffff, adapter->tgt_status_reg);
3174
3175        napi_schedule(&sds_ring->napi);
3176        return IRQ_HANDLED;
3177}
3178
3179static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3180{
3181        struct qlcnic_host_sds_ring *sds_ring = data;
3182
3183        napi_schedule(&sds_ring->napi);
3184        return IRQ_HANDLED;
3185}
3186
3187static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3188{
3189        struct qlcnic_host_tx_ring *tx_ring = data;
3190
3191        napi_schedule(&tx_ring->napi);
3192        return IRQ_HANDLED;
3193}
3194
3195#ifdef CONFIG_NET_POLL_CONTROLLER
3196static void qlcnic_poll_controller(struct net_device *netdev)
3197{
3198        struct qlcnic_adapter *adapter = netdev_priv(netdev);
3199        struct qlcnic_host_sds_ring *sds_ring;
3200        struct qlcnic_recv_context *recv_ctx;
3201        struct qlcnic_host_tx_ring *tx_ring;
3202        int ring;
3203
3204        if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3205                return;
3206
3207        recv_ctx = adapter->recv_ctx;
3208
3209        for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3210                sds_ring = &recv_ctx->sds_rings[ring];
3211                qlcnic_disable_sds_intr(adapter, sds_ring);
3212                napi_schedule(&sds_ring->napi);
3213        }
3214
3215        if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3216                /* Only Multi-Tx queue capable devices need to
3217                 * schedule NAPI for TX rings
3218                 */
3219                if ((qlcnic_83xx_check(adapter) &&
3220                     (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3221                    (qlcnic_82xx_check(adapter) &&
3222                     !qlcnic_check_multi_tx(adapter)))
3223                        return;
3224
3225                for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3226                        tx_ring = &adapter->tx_ring[ring];
3227                        qlcnic_disable_tx_intr(adapter, tx_ring);
3228                        napi_schedule(&tx_ring->napi);
3229                }
3230        }
3231}
3232#endif
3233
3234static void
3235qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3236{
3237        u32 val;
3238
3239        val = adapter->portnum & 0xf;
3240        val |= encoding << 7;
3241        val |= (jiffies - adapter->dev_rst_time) << 8;
3242
3243        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3244        adapter->dev_rst_time = jiffies;
3245}
3246
3247static int
3248qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3249{
3250        u32  val;
3251
3252        WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3253                        state != QLCNIC_DEV_NEED_QUISCENT);
3254
3255        if (qlcnic_api_lock(adapter))
3256                return -EIO;
3257
3258        val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3259
3260        if (state == QLCNIC_DEV_NEED_RESET)
3261                QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3262        else if (state == QLCNIC_DEV_NEED_QUISCENT)
3263                QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3264
3265        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3266
3267        qlcnic_api_unlock(adapter);
3268
3269        return 0;
3270}
3271
3272static int
3273qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3274{
3275        u32  val;
3276
3277        if (qlcnic_api_lock(adapter))
3278                return -EBUSY;
3279
3280        val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3281        QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3282        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3283
3284        qlcnic_api_unlock(adapter);
3285
3286        return 0;
3287}
3288
3289void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3290{
3291        u32  val;
3292
3293        if (qlcnic_api_lock(adapter))
3294                goto err;
3295
3296        val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3297        QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3298        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3299
3300        if (failed) {
3301                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3302                                    QLCNIC_DEV_FAILED);
3303                dev_info(&adapter->pdev->dev,
3304                                "Device state set to Failed. Please Reboot\n");
3305        } else if (!(val & 0x11111111))
3306                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3307                                    QLCNIC_DEV_COLD);
3308
3309        val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3310        QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3311        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3312
3313        qlcnic_api_unlock(adapter);
3314err:
3315        adapter->fw_fail_cnt = 0;
3316        adapter->flags &= ~QLCNIC_FW_HANG;
3317        clear_bit(__QLCNIC_START_FW, &adapter->state);
3318        clear_bit(__QLCNIC_RESETTING, &adapter->state);
3319}
3320
3321/* Grab api lock, before checking state */
3322static int
3323qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3324{
3325        int act, state, active_mask;
3326        struct qlcnic_hardware_context *ahw = adapter->ahw;
3327
3328        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3329        act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3330
3331        if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3332                active_mask = (~(1 << (ahw->pci_func * 4)));
3333                act = act & active_mask;
3334        }
3335
3336        if (((state & 0x11111111) == (act & 0x11111111)) ||
3337                        ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3338                return 0;
3339        else
3340                return 1;
3341}
3342
3343static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3344{
3345        u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3346
3347        if (val != QLCNIC_DRV_IDC_VER) {
3348                dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3349                        " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3350        }
3351
3352        return 0;
3353}
3354
3355static int
3356qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3357{
3358        u32 val, prev_state;
3359        u8 dev_init_timeo = adapter->dev_init_timeo;
3360        u8 portnum = adapter->portnum;
3361        u8 ret;
3362
3363        if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3364                return 1;
3365
3366        if (qlcnic_api_lock(adapter))
3367                return -1;
3368
3369        val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3370        if (!(val & (1 << (portnum * 4)))) {
3371                QLC_DEV_SET_REF_CNT(val, portnum);
3372                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3373        }
3374
3375        prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3376        QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3377
3378        switch (prev_state) {
3379        case QLCNIC_DEV_COLD:
3380                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3381                                    QLCNIC_DEV_INITIALIZING);
3382                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3383                                    QLCNIC_DRV_IDC_VER);
3384                qlcnic_idc_debug_info(adapter, 0);
3385                qlcnic_api_unlock(adapter);
3386                return 1;
3387
3388        case QLCNIC_DEV_READY:
3389                ret = qlcnic_check_idc_ver(adapter);
3390                qlcnic_api_unlock(adapter);
3391                return ret;
3392
3393        case QLCNIC_DEV_NEED_RESET:
3394                val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3395                QLC_DEV_SET_RST_RDY(val, portnum);
3396                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3397                break;
3398
3399        case QLCNIC_DEV_NEED_QUISCENT:
3400                val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3401                QLC_DEV_SET_QSCNT_RDY(val, portnum);
3402                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3403                break;
3404
3405        case QLCNIC_DEV_FAILED:
3406                dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3407                qlcnic_api_unlock(adapter);
3408                return -1;
3409
3410        case QLCNIC_DEV_INITIALIZING:
3411        case QLCNIC_DEV_QUISCENT:
3412                break;
3413        }
3414
3415        qlcnic_api_unlock(adapter);
3416
3417        do {
3418                msleep(1000);
3419                prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3420
3421                if (prev_state == QLCNIC_DEV_QUISCENT)
3422                        continue;
3423        } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3424
3425        if (!dev_init_timeo) {
3426                dev_err(&adapter->pdev->dev,
3427                        "Waiting for device to initialize timeout\n");
3428                return -1;
3429        }
3430
3431        if (qlcnic_api_lock(adapter))
3432                return -1;
3433
3434        val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3435        QLC_DEV_CLR_RST_QSCNT(val, portnum);
3436        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3437
3438        ret = qlcnic_check_idc_ver(adapter);
3439        qlcnic_api_unlock(adapter);
3440
3441        return ret;
3442}
3443
3444static void
3445qlcnic_fwinit_work(struct work_struct *work)
3446{
3447        struct qlcnic_adapter *adapter = container_of(work,
3448                        struct qlcnic_adapter, fw_work.work);
3449        u32 dev_state = 0xf;
3450        u32 val;
3451
3452        if (qlcnic_api_lock(adapter))
3453                goto err_ret;
3454
3455        dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3456        if (dev_state == QLCNIC_DEV_QUISCENT ||
3457            dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3458                qlcnic_api_unlock(adapter);
3459                qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3460                                                FW_POLL_DELAY * 2);
3461                return;
3462        }
3463
3464        if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3465                qlcnic_api_unlock(adapter);
3466                goto wait_npar;
3467        }
3468
3469        if (dev_state == QLCNIC_DEV_INITIALIZING ||
3470            dev_state == QLCNIC_DEV_READY) {
3471                dev_info(&adapter->pdev->dev, "Detected state change from "
3472                                "DEV_NEED_RESET, skipping ack check\n");
3473                goto skip_ack_check;
3474        }
3475
3476        if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3477                dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3478                                        adapter->reset_ack_timeo);
3479                goto skip_ack_check;
3480        }
3481
3482        if (!qlcnic_check_drv_state(adapter)) {
3483skip_ack_check:
3484                dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3485
3486                if (dev_state == QLCNIC_DEV_NEED_RESET) {
3487                        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3488                                            QLCNIC_DEV_INITIALIZING);
3489                        set_bit(__QLCNIC_START_FW, &adapter->state);
3490                        QLCDB(adapter, DRV, "Restarting fw\n");
3491                        qlcnic_idc_debug_info(adapter, 0);
3492                        val = QLC_SHARED_REG_RD32(adapter,
3493                                                  QLCNIC_CRB_DRV_STATE);
3494                        QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3495                        QLC_SHARED_REG_WR32(adapter,
3496                                            QLCNIC_CRB_DRV_STATE, val);
3497                }
3498
3499                qlcnic_api_unlock(adapter);
3500
3501                rtnl_lock();
3502                if (qlcnic_check_fw_dump_state(adapter) &&
3503                    (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3504                        QLCDB(adapter, DRV, "Take FW dump\n");
3505                        qlcnic_dump_fw(adapter);
3506                        adapter->flags |= QLCNIC_FW_HANG;
3507                }
3508                rtnl_unlock();
3509
3510                adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3511                if (!adapter->nic_ops->start_firmware(adapter)) {
3512                        qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3513                        adapter->fw_wait_cnt = 0;
3514                        return;
3515                }
3516                goto err_ret;
3517        }
3518
3519        qlcnic_api_unlock(adapter);
3520
3521wait_npar:
3522        dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3523        QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3524
3525        switch (dev_state) {
3526        case QLCNIC_DEV_READY:
3527                if (!qlcnic_start_firmware(adapter)) {
3528                        qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3529                        adapter->fw_wait_cnt = 0;
3530                        return;
3531                }
3532        case QLCNIC_DEV_FAILED:
3533                break;
3534        default:
3535                qlcnic_schedule_work(adapter,
3536                        qlcnic_fwinit_work, FW_POLL_DELAY);
3537                return;
3538        }
3539
3540err_ret:
3541        dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3542                "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3543        netif_device_attach(adapter->netdev);
3544        qlcnic_clr_all_drv_state(adapter, 0);
3545}
3546
3547static void
3548qlcnic_detach_work(struct work_struct *work)
3549{
3550        struct qlcnic_adapter *adapter = container_of(work,
3551                        struct qlcnic_adapter, fw_work.work);
3552        struct net_device *netdev = adapter->netdev;
3553        u32 status;
3554
3555        netif_device_detach(netdev);
3556
3557        /* Dont grab rtnl lock during Quiscent mode */
3558        if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3559                if (netif_running(netdev))
3560                        __qlcnic_down(adapter, netdev);
3561        } else
3562                qlcnic_down(adapter, netdev);
3563
3564        status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3565
3566        if (status & QLCNIC_RCODE_FATAL_ERROR) {
3567                dev_err(&adapter->pdev->dev,
3568                        "Detaching the device: peg halt status1=0x%x\n",
3569                                        status);
3570
3571                if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3572                        dev_err(&adapter->pdev->dev,
3573                        "On board active cooling fan failed. "
3574                                "Device has been halted.\n");
3575                        dev_err(&adapter->pdev->dev,
3576                                "Replace the adapter.\n");
3577                }
3578
3579                goto err_ret;
3580        }
3581
3582        if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3583                dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3584                        adapter->ahw->temp);
3585                goto err_ret;
3586        }
3587
3588        /* Dont ack if this instance is the reset owner */
3589        if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3590                if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3591                        dev_err(&adapter->pdev->dev,
3592                                "Failed to set driver state,"
3593                                        "detaching the device.\n");
3594                        goto err_ret;
3595                }
3596        }
3597
3598        adapter->fw_wait_cnt = 0;
3599
3600        qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3601
3602        return;
3603
3604err_ret:
3605        netif_device_attach(netdev);
3606        qlcnic_clr_all_drv_state(adapter, 1);
3607}
3608
3609/*Transit NPAR state to NON Operational */
3610static void
3611qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3612{
3613        u32 state;
3614
3615        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3616        if (state == QLCNIC_DEV_NPAR_NON_OPER)
3617                return;
3618
3619        if (qlcnic_api_lock(adapter))
3620                return;
3621        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3622                            QLCNIC_DEV_NPAR_NON_OPER);
3623        qlcnic_api_unlock(adapter);
3624}
3625
3626static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3627                                          u32 key)
3628{
3629        u32 state, xg_val = 0, gb_val = 0;
3630
3631        qlcnic_xg_set_xg0_mask(xg_val);
3632        qlcnic_xg_set_xg1_mask(xg_val);
3633        QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3634        qlcnic_gb_set_gb0_mask(gb_val);
3635        qlcnic_gb_set_gb1_mask(gb_val);
3636        qlcnic_gb_set_gb2_mask(gb_val);
3637        qlcnic_gb_set_gb3_mask(gb_val);
3638        QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3639        dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3640                                " on all ports\n");
3641        adapter->need_fw_reset = 1;
3642
3643        if (qlcnic_api_lock(adapter))
3644                return;
3645
3646        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3647
3648        if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3649                netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3650                           __func__);
3651                qlcnic_api_unlock(adapter);
3652
3653                return;
3654        }
3655
3656        if (state == QLCNIC_DEV_READY) {
3657                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3658                                    QLCNIC_DEV_NEED_RESET);
3659                adapter->flags |= QLCNIC_FW_RESET_OWNER;
3660                QLCDB(adapter, DRV, "NEED_RESET state set\n");
3661                qlcnic_idc_debug_info(adapter, 0);
3662        }
3663
3664        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3665                            QLCNIC_DEV_NPAR_NON_OPER);
3666        qlcnic_api_unlock(adapter);
3667}
3668
3669/* Transit to NPAR READY state from NPAR NOT READY state */
3670static void
3671qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3672{
3673        if (qlcnic_api_lock(adapter))
3674                return;
3675
3676        QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3677                            QLCNIC_DEV_NPAR_OPER);
3678        QLCDB(adapter, DRV, "NPAR operational state set\n");
3679
3680        qlcnic_api_unlock(adapter);
3681}
3682
3683void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3684                          work_func_t func, int delay)
3685{
3686        if (test_bit(__QLCNIC_AER, &adapter->state))
3687                return;
3688
3689        INIT_DELAYED_WORK(&adapter->fw_work, func);
3690        queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3691                           round_jiffies_relative(delay));
3692}
3693
3694static void
3695qlcnic_attach_work(struct work_struct *work)
3696{
3697        struct qlcnic_adapter *adapter = container_of(work,
3698                                struct qlcnic_adapter, fw_work.work);
3699        struct net_device *netdev = adapter->netdev;
3700        u32 npar_state;
3701
3702        if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3703                npar_state = QLC_SHARED_REG_RD32(adapter,
3704                                                 QLCNIC_CRB_DEV_NPAR_STATE);
3705                if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3706                        qlcnic_clr_all_drv_state(adapter, 0);
3707                else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3708                        qlcnic_schedule_work(adapter, qlcnic_attach_work,
3709                                                        FW_POLL_DELAY);
3710                else
3711                        goto attach;
3712                QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3713                return;
3714        }
3715attach:
3716        qlcnic_dcb_get_info(adapter->dcb);
3717
3718        if (netif_running(netdev)) {
3719                if (qlcnic_up(adapter, netdev))
3720                        goto done;
3721
3722                qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3723        }
3724
3725done:
3726        netif_device_attach(netdev);
3727        adapter->fw_fail_cnt = 0;
3728        adapter->flags &= ~QLCNIC_FW_HANG;
3729        clear_bit(__QLCNIC_RESETTING, &adapter->state);
3730        if (adapter->portnum == 0)
3731                qlcnic_set_drv_version(adapter);
3732
3733        if (!qlcnic_clr_drv_state(adapter))
3734                qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3735                                                        FW_POLL_DELAY);
3736}
3737
3738static int
3739qlcnic_check_health(struct qlcnic_adapter *adapter)
3740{
3741        struct qlcnic_hardware_context *ahw = adapter->ahw;
3742        struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3743        u32 state = 0, heartbeat;
3744        u32 peg_status;
3745        int err = 0;
3746
3747        if (qlcnic_check_temp(adapter))
3748                goto detach;
3749
3750        if (adapter->need_fw_reset)
3751                qlcnic_dev_request_reset(adapter, 0);
3752
3753        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3754        if (state == QLCNIC_DEV_NEED_RESET) {
3755                qlcnic_set_npar_non_operational(adapter);
3756                adapter->need_fw_reset = 1;
3757        } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3758                goto detach;
3759
3760        heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3761        if (heartbeat != adapter->heartbeat) {
3762                adapter->heartbeat = heartbeat;
3763                adapter->fw_fail_cnt = 0;
3764                if (adapter->need_fw_reset)
3765                        goto detach;
3766
3767                if (ahw->reset_context && qlcnic_auto_fw_reset)
3768                        qlcnic_reset_hw_context(adapter);
3769
3770                return 0;
3771        }
3772
3773        if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3774                return 0;
3775
3776        adapter->flags |= QLCNIC_FW_HANG;
3777
3778        qlcnic_dev_request_reset(adapter, 0);
3779
3780        if (qlcnic_auto_fw_reset)
3781                clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3782
3783        dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3784        peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3785        dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3786                        "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3787                        "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3788                        "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3789                        "PEG_NET_4_PC: 0x%x\n",
3790                        peg_status,
3791                        QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3792                        QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3793                        QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3794                        QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3795                        QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3796                        QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3797        if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3798                dev_err(&adapter->pdev->dev,
3799                        "Firmware aborted with error code 0x00006700. "
3800                                "Device is being reset.\n");
3801detach:
3802        adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3803                QLCNIC_DEV_NEED_RESET;
3804
3805        if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3806                                                      &adapter->state)) {
3807
3808                qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3809                QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3810        } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3811                   adapter->flags & QLCNIC_FW_RESET_OWNER) {
3812                qlcnic_dump_fw(adapter);
3813        }
3814
3815        return 1;
3816}
3817
3818void qlcnic_fw_poll_work(struct work_struct *work)
3819{
3820        struct qlcnic_adapter *adapter = container_of(work,
3821                                struct qlcnic_adapter, fw_work.work);
3822
3823        if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3824                goto reschedule;
3825
3826
3827        if (qlcnic_check_health(adapter))
3828                return;
3829
3830        if (adapter->fhash.fnum)
3831                qlcnic_prune_lb_filters(adapter);
3832
3833reschedule:
3834        qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3835}
3836
3837static int qlcnic_is_first_func(struct pci_dev *pdev)
3838{
3839        struct pci_dev *oth_pdev;
3840        int val = pdev->devfn;
3841
3842        while (val-- > 0) {
3843                oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3844                        (pdev->bus), pdev->bus->number,
3845                        PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3846                if (!oth_pdev)
3847                        continue;
3848
3849                if (oth_pdev->current_state != PCI_D3cold) {
3850                        pci_dev_put(oth_pdev);
3851                        return 0;
3852                }
3853                pci_dev_put(oth_pdev);
3854        }
3855        return 1;
3856}
3857
3858static int qlcnic_attach_func(struct pci_dev *pdev)
3859{
3860        int err, first_func;
3861        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3862        struct net_device *netdev = adapter->netdev;
3863
3864        pdev->error_state = pci_channel_io_normal;
3865
3866        err = pci_enable_device(pdev);
3867        if (err)
3868                return err;
3869
3870        pci_set_master(pdev);
3871        pci_restore_state(pdev);
3872
3873        first_func = qlcnic_is_first_func(pdev);
3874
3875        if (qlcnic_api_lock(adapter))
3876                return -EINVAL;
3877
3878        if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3879                adapter->need_fw_reset = 1;
3880                set_bit(__QLCNIC_START_FW, &adapter->state);
3881                QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3882                                    QLCNIC_DEV_INITIALIZING);
3883                QLCDB(adapter, DRV, "Restarting fw\n");
3884        }
3885        qlcnic_api_unlock(adapter);
3886
3887        err = qlcnic_start_firmware(adapter);
3888        if (err)
3889                return err;
3890
3891        qlcnic_clr_drv_state(adapter);
3892        kfree(adapter->msix_entries);
3893        adapter->msix_entries = NULL;
3894        err = qlcnic_setup_intr(adapter);
3895
3896        if (err) {
3897                kfree(adapter->msix_entries);
3898                netdev_err(netdev, "failed to setup interrupt\n");
3899                return err;
3900        }
3901
3902        if (netif_running(netdev)) {
3903                err = qlcnic_attach(adapter);
3904                if (err) {
3905                        qlcnic_clr_all_drv_state(adapter, 1);
3906                        clear_bit(__QLCNIC_AER, &adapter->state);
3907                        netif_device_attach(netdev);
3908                        return err;
3909                }
3910
3911                err = qlcnic_up(adapter, netdev);
3912                if (err)
3913                        goto done;
3914
3915                qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3916        }
3917 done:
3918        netif_device_attach(netdev);
3919        return err;
3920}
3921
3922static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3923                                                      pci_channel_state_t state)
3924{
3925        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3926        struct net_device *netdev = adapter->netdev;
3927
3928        if (state == pci_channel_io_perm_failure)
3929                return PCI_ERS_RESULT_DISCONNECT;
3930
3931        if (state == pci_channel_io_normal)
3932                return PCI_ERS_RESULT_RECOVERED;
3933
3934        set_bit(__QLCNIC_AER, &adapter->state);
3935        netif_device_detach(netdev);
3936
3937        cancel_delayed_work_sync(&adapter->fw_work);
3938
3939        if (netif_running(netdev))
3940                qlcnic_down(adapter, netdev);
3941
3942        qlcnic_detach(adapter);
3943        qlcnic_teardown_intr(adapter);
3944
3945        clear_bit(__QLCNIC_RESETTING, &adapter->state);
3946
3947        pci_save_state(pdev);
3948        pci_disable_device(pdev);
3949
3950        return PCI_ERS_RESULT_NEED_RESET;
3951}
3952
3953static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3954{
3955        pci_ers_result_t res;
3956
3957        rtnl_lock();
3958        res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3959                                         PCI_ERS_RESULT_RECOVERED;
3960        rtnl_unlock();
3961
3962        return res;
3963}
3964
3965static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3966{
3967        u32 state;
3968        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3969
3970        pci_cleanup_aer_uncorrect_error_status(pdev);
3971        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3972        if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3973                                                            &adapter->state))
3974                qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3975                                     FW_POLL_DELAY);
3976}
3977
3978static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3979                                                 pci_channel_state_t state)
3980{
3981        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3982        struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3983
3984        if (hw_ops->io_error_detected) {
3985                return hw_ops->io_error_detected(pdev, state);
3986        } else {
3987                dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3988                return PCI_ERS_RESULT_DISCONNECT;
3989        }
3990}
3991
3992static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3993{
3994        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3995        struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3996
3997        if (hw_ops->io_slot_reset) {
3998                return hw_ops->io_slot_reset(pdev);
3999        } else {
4000                dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
4001                return PCI_ERS_RESULT_DISCONNECT;
4002        }
4003}
4004
4005static void qlcnic_io_resume(struct pci_dev *pdev)
4006{
4007        struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4008        struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4009
4010        if (hw_ops->io_resume)
4011                hw_ops->io_resume(pdev);
4012        else
4013                dev_err(&pdev->dev, "AER resume handler not registered.\n");
4014}
4015
4016
4017static int
4018qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4019{
4020        int err;
4021
4022        err = qlcnic_can_start_firmware(adapter);
4023        if (err)
4024                return err;
4025
4026        err = qlcnic_check_npar_opertional(adapter);
4027        if (err)
4028                return err;
4029
4030        err = qlcnic_initialize_nic(adapter);
4031        if (err)
4032                return err;
4033
4034        qlcnic_check_options(adapter);
4035
4036        err = qlcnic_set_eswitch_port_config(adapter);
4037        if (err)
4038                return err;
4039
4040        adapter->need_fw_reset = 0;
4041
4042        return err;
4043}
4044
4045int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4046                          int queue_type)
4047{
4048        struct net_device *netdev = adapter->netdev;
4049        u8 max_hw_rings = 0;
4050        char buf[8];
4051        int cur_rings;
4052
4053        if (queue_type == QLCNIC_RX_QUEUE) {
4054                max_hw_rings = adapter->max_sds_rings;
4055                cur_rings = adapter->drv_sds_rings;
4056                strcpy(buf, "SDS");
4057        } else if (queue_type == QLCNIC_TX_QUEUE) {
4058                max_hw_rings = adapter->max_tx_rings;
4059                cur_rings = adapter->drv_tx_rings;
4060                strcpy(buf, "Tx");
4061        }
4062
4063        if (!is_power_of_2(ring_cnt)) {
4064                netdev_err(netdev, "%s rings value should be a power of 2\n",
4065                           buf);
4066                return -EINVAL;
4067        }
4068
4069        if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4070            !qlcnic_check_multi_tx(adapter)) {
4071                        netdev_err(netdev, "No Multi Tx queue support\n");
4072                        return -EINVAL;
4073        }
4074
4075        if (ring_cnt > num_online_cpus()) {
4076                netdev_err(netdev,
4077                           "%s value[%u] should not be higher than, number of online CPUs\n",
4078                           buf, num_online_cpus());
4079                return -EINVAL;
4080        }
4081
4082        return 0;
4083}
4084
4085int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4086{
4087        struct net_device *netdev = adapter->netdev;
4088        u8 tx_rings, rx_rings;
4089        int err;
4090
4091        if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4092                return -EBUSY;
4093
4094        tx_rings = adapter->drv_tss_rings;
4095        rx_rings = adapter->drv_rss_rings;
4096
4097        netif_device_detach(netdev);
4098
4099        err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4100        if (err)
4101                goto done;
4102
4103        if (netif_running(netdev))
4104                __qlcnic_down(adapter, netdev);
4105
4106        qlcnic_detach(adapter);
4107
4108        if (qlcnic_83xx_check(adapter)) {
4109                qlcnic_83xx_free_mbx_intr(adapter);
4110                qlcnic_83xx_enable_mbx_poll(adapter);
4111        }
4112
4113        qlcnic_teardown_intr(adapter);
4114
4115        err = qlcnic_setup_intr(adapter);
4116        if (err) {
4117                kfree(adapter->msix_entries);
4118                netdev_err(netdev, "failed to setup interrupt\n");
4119                return err;
4120        }
4121
4122        /* Check if we need to update real_num_{tx|rx}_queues because
4123         * qlcnic_setup_intr() may change Tx/Rx rings size
4124         */
4125        if ((tx_rings != adapter->drv_tx_rings) ||
4126            (rx_rings != adapter->drv_sds_rings)) {
4127                err = qlcnic_set_real_num_queues(adapter,
4128                                                 adapter->drv_tx_rings,
4129                                                 adapter->drv_sds_rings);
4130                if (err)
4131                        goto done;
4132        }
4133
4134        if (qlcnic_83xx_check(adapter)) {
4135                qlcnic_83xx_initialize_nic(adapter, 1);
4136                err = qlcnic_83xx_setup_mbx_intr(adapter);
4137                qlcnic_83xx_disable_mbx_poll(adapter);
4138                if (err) {
4139                        dev_err(&adapter->pdev->dev,
4140                                "failed to setup mbx interrupt\n");
4141                        goto done;
4142                }
4143        }
4144
4145        if (netif_running(netdev)) {
4146                err = qlcnic_attach(adapter);
4147                if (err)
4148                        goto done;
4149                err = __qlcnic_up(adapter, netdev);
4150                if (err)
4151                        goto done;
4152                qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4153        }
4154done:
4155        netif_device_attach(netdev);
4156        clear_bit(__QLCNIC_RESETTING, &adapter->state);
4157        return err;
4158}
4159
4160#ifdef CONFIG_INET
4161
4162#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4163
4164static void
4165qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4166                        struct net_device *dev, unsigned long event)
4167{
4168        struct in_device *indev;
4169
4170        indev = in_dev_get(dev);
4171        if (!indev)
4172                return;
4173
4174        for_ifa(indev) {
4175                switch (event) {
4176                case NETDEV_UP:
4177                        qlcnic_config_ipaddr(adapter,
4178                                        ifa->ifa_address, QLCNIC_IP_UP);
4179                        break;
4180                case NETDEV_DOWN:
4181                        qlcnic_config_ipaddr(adapter,
4182                                        ifa->ifa_address, QLCNIC_IP_DOWN);
4183                        break;
4184                default:
4185                        break;
4186                }
4187        } endfor_ifa(indev);
4188
4189        in_dev_put(indev);
4190}
4191
4192void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4193{
4194        struct qlcnic_adapter *adapter = netdev_priv(netdev);
4195        struct net_device *dev;
4196        u16 vid;
4197
4198        qlcnic_config_indev_addr(adapter, netdev, event);
4199
4200        rcu_read_lock();
4201        for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4202                dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4203                if (!dev)
4204                        continue;
4205                qlcnic_config_indev_addr(adapter, dev, event);
4206        }
4207        rcu_read_unlock();
4208}
4209
4210static int qlcnic_netdev_event(struct notifier_block *this,
4211                                 unsigned long event, void *ptr)
4212{
4213        struct qlcnic_adapter *adapter;
4214        struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4215
4216recheck:
4217        if (dev == NULL)
4218                goto done;
4219
4220        if (dev->priv_flags & IFF_802_1Q_VLAN) {
4221                dev = vlan_dev_real_dev(dev);
4222                goto recheck;
4223        }
4224
4225        if (!is_qlcnic_netdev(dev))
4226                goto done;
4227
4228        adapter = netdev_priv(dev);
4229
4230        if (!adapter)
4231                goto done;
4232
4233        if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4234                goto done;
4235
4236        qlcnic_config_indev_addr(adapter, dev, event);
4237done:
4238        return NOTIFY_DONE;
4239}
4240
4241static int
4242qlcnic_inetaddr_event(struct notifier_block *this,
4243                unsigned long event, void *ptr)
4244{
4245        struct qlcnic_adapter *adapter;
4246        struct net_device *dev;
4247
4248        struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4249
4250        dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4251
4252recheck:
4253        if (dev == NULL)
4254                goto done;
4255
4256        if (dev->priv_flags & IFF_802_1Q_VLAN) {
4257                dev = vlan_dev_real_dev(dev);
4258                goto recheck;
4259        }
4260
4261        if (!is_qlcnic_netdev(dev))
4262                goto done;
4263
4264        adapter = netdev_priv(dev);
4265
4266        if (!adapter)
4267                goto done;
4268
4269        if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4270                goto done;
4271
4272        switch (event) {
4273        case NETDEV_UP:
4274                qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4275
4276                break;
4277        case NETDEV_DOWN:
4278                qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4279
4280                break;
4281        default:
4282                break;
4283        }
4284
4285done:
4286        return NOTIFY_DONE;
4287}
4288
4289static struct notifier_block    qlcnic_netdev_cb = {
4290        .notifier_call = qlcnic_netdev_event,
4291};
4292
4293static struct notifier_block qlcnic_inetaddr_cb = {
4294        .notifier_call = qlcnic_inetaddr_event,
4295};
4296#else
4297void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4298{ }
4299#endif
4300static const struct pci_error_handlers qlcnic_err_handler = {
4301        .error_detected = qlcnic_io_error_detected,
4302        .slot_reset = qlcnic_io_slot_reset,
4303        .resume = qlcnic_io_resume,
4304};
4305
4306static struct pci_driver qlcnic_driver = {
4307        .name = qlcnic_driver_name,
4308        .id_table = qlcnic_pci_tbl,
4309        .probe = qlcnic_probe,
4310        .remove = qlcnic_remove,
4311#ifdef CONFIG_PM
4312        .suspend = qlcnic_suspend,
4313        .resume = qlcnic_resume,
4314#endif
4315        .shutdown = qlcnic_shutdown,
4316        .err_handler = &qlcnic_err_handler,
4317#ifdef CONFIG_QLCNIC_SRIOV
4318        .sriov_configure = qlcnic_pci_sriov_configure,
4319#endif
4320
4321};
4322
4323static int __init qlcnic_init_module(void)
4324{
4325        int ret;
4326
4327        printk(KERN_INFO "%s\n", qlcnic_driver_string);
4328
4329#ifdef CONFIG_INET
4330        register_netdevice_notifier(&qlcnic_netdev_cb);
4331        register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4332#endif
4333
4334        ret = pci_register_driver(&qlcnic_driver);
4335        if (ret) {
4336#ifdef CONFIG_INET
4337                unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4338                unregister_netdevice_notifier(&qlcnic_netdev_cb);
4339#endif
4340        }
4341
4342        return ret;
4343}
4344
4345module_init(qlcnic_init_module);
4346
4347static void __exit qlcnic_exit_module(void)
4348{
4349        pci_unregister_driver(&qlcnic_driver);
4350
4351#ifdef CONFIG_INET
4352        unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4353        unregister_netdevice_notifier(&qlcnic_netdev_cb);
4354#endif
4355}
4356
4357module_exit(qlcnic_exit_module);
4358