root/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

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DEFINITIONS

This source file includes following definitions.
  1. qlcnic_vlan_tx_check
  2. qlcnic_update_cmd_producer
  3. qlcnic_alloc_sds_rings
  4. qlcnic_free_sds_rings
  5. qlcnic_read_mac_addr
  6. qlcnic_delete_adapter_mac
  7. qlcnic_set_mac
  8. qlcnic_fdb_del
  9. qlcnic_fdb_add
  10. qlcnic_fdb_dump
  11. qlcnic_82xx_cancel_idc_work
  12. qlcnic_get_phys_port_id
  13. qlcnic_add_vxlan_port
  14. qlcnic_del_vxlan_port
  15. qlcnic_features_check
  16. qlcnic_check_multi_tx_capability
  17. qlcnic_max_rings
  18. qlcnic_set_tx_ring_count
  19. qlcnic_set_sds_ring_count
  20. qlcnic_setup_tss_rss_intr
  21. qlcnic_enable_msix
  22. qlcnic_82xx_calculate_msix_vector
  23. qlcnic_enable_msi_legacy
  24. qlcnic_82xx_setup_intr
  25. qlcnic_82xx_mq_intrpt
  26. qlcnic_teardown_intr
  27. qlcnic_cleanup_pci_map
  28. qlcnic_get_act_pci_func
  29. qlcnic_port_eswitch_cfg_capability
  30. qlcnic_init_pci_info
  31. qlcnic_set_function_modes
  32. qlcnic_check_vf
  33. qlcnic_get_bar_length
  34. qlcnic_setup_pci_map
  35. qlcnic_validate_subsystem_id
  36. qlcnic_get_board_name
  37. qlcnic_check_options
  38. qlcnic_initialize_nic
  39. qlcnic_set_vlan_config
  40. qlcnic_vlan_rx_add
  41. qlcnic_vlan_rx_del
  42. qlcnic_set_eswitch_port_features
  43. qlcnic_set_eswitch_port_config
  44. qlcnic_set_netdev_features
  45. qlcnic_check_eswitch_mode
  46. qlcnic_set_default_offload_settings
  47. qlcnic_reset_eswitch_config
  48. qlcnic_reset_npar_config
  49. qlcnic_check_npar_opertional
  50. qlcnic_set_mgmt_operations
  51. qlcnic_82xx_start_firmware
  52. qlcnic_request_irq
  53. qlcnic_free_irq
  54. qlcnic_get_lro_mss_capability
  55. qlcnic_config_def_intr_coalesce
  56. __qlcnic_up
  57. qlcnic_up
  58. __qlcnic_down
  59. qlcnic_down
  60. qlcnic_attach
  61. qlcnic_detach
  62. qlcnic_diag_free_res
  63. qlcnic_alloc_adapter_resources
  64. qlcnic_free_adapter_resources
  65. qlcnic_diag_alloc_res
  66. qlcnic_reset_hw_context
  67. qlcnic_reset_context
  68. qlcnic_82xx_set_mac_filter_count
  69. qlcnic_set_real_num_queues
  70. qlcnic_setup_netdev
  71. qlcnic_set_dma_mask
  72. qlcnic_free_tx_rings
  73. qlcnic_alloc_tx_rings
  74. qlcnic_set_drv_version
  75. qlcnic_reset_api_lock
  76. qlcnic_probe
  77. qlcnic_remove
  78. qlcnic_shutdown
  79. qlcnic_suspend
  80. qlcnic_resume
  81. qlcnic_open
  82. qlcnic_close
  83. qlcnic_alloc_lb_filters_mem
  84. qlcnic_free_lb_filters_mem
  85. qlcnic_check_temp
  86. dump_tx_ring_desc
  87. qlcnic_dump_rings
  88. qlcnic_tx_timeout
  89. qlcnic_get_stats
  90. qlcnic_82xx_clear_legacy_intr
  91. qlcnic_tmp_intr
  92. qlcnic_intr
  93. qlcnic_msi_intr
  94. qlcnic_msix_intr
  95. qlcnic_msix_tx_intr
  96. qlcnic_idc_debug_info
  97. qlcnic_set_drv_state
  98. qlcnic_clr_drv_state
  99. qlcnic_clr_all_drv_state
  100. qlcnic_check_drv_state
  101. qlcnic_check_idc_ver
  102. qlcnic_can_start_firmware
  103. qlcnic_fwinit_work
  104. qlcnic_detach_work
  105. qlcnic_set_npar_non_operational
  106. qlcnic_82xx_dev_request_reset
  107. qlcnic_dev_set_npar_ready
  108. qlcnic_schedule_work
  109. qlcnic_attach_work
  110. qlcnic_check_health
  111. qlcnic_fw_poll_work
  112. qlcnic_is_first_func
  113. qlcnic_attach_func
  114. qlcnic_82xx_io_error_detected
  115. qlcnic_82xx_io_slot_reset
  116. qlcnic_82xx_io_resume
  117. qlcnic_io_error_detected
  118. qlcnic_io_slot_reset
  119. qlcnic_io_resume
  120. qlcnicvf_start_firmware
  121. qlcnic_validate_rings
  122. qlcnic_setup_rings
  123. qlcnic_config_indev_addr
  124. qlcnic_restore_indev_addr
  125. qlcnic_netdev_event
  126. qlcnic_inetaddr_event
  127. qlcnic_restore_indev_addr
  128. qlcnic_init_module
  129. qlcnic_exit_module

   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 #include <net/vxlan.h>
  20 
  21 #include "qlcnic.h"
  22 #include "qlcnic_sriov.h"
  23 #include "qlcnic_hw.h"
  24 
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  29 
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33 
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38 
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42 
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46 
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50 
  51 int qlcnic_load_fw_file;
  52 MODULE_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)");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54 
  55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62 
  63 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  64 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  65 
  66 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  67 static irqreturn_t qlcnic_intr(int irq, void *data);
  68 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  69 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  70 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  71 
  72 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  73 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  74 
  75 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  76 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  77 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  78 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  79 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  80 
  81 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  82 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  83 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  84 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  85 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  86 static void qlcnic_82xx_io_resume(struct pci_dev *);
  87 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  88 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  89                                                       pci_channel_state_t);
  90 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  91 {
  92         struct qlcnic_hardware_context *ahw = adapter->ahw;
  93 
  94         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  95                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  96         else
  97                 return 1;
  98 }
  99 
 100 /*  PCI Device ID Table  */
 101 #define ENTRY(device) \
 102         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 103         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 104 
 105 static const struct pci_device_id qlcnic_pci_tbl[] = {
 106         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 107         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 108         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 109         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 110         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 113         {0,}
 114 };
 115 
 116 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 117 
 118 
 119 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 120 {
 121         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 122 }
 123 
 124 static const u32 msi_tgt_status[8] = {
 125         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 126         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 127         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 128         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 129 };
 130 
 131 static const u32 qlcnic_reg_tbl[] = {
 132         0x1B20A8,       /* PEG_HALT_STAT1 */
 133         0x1B20AC,       /* PEG_HALT_STAT2 */
 134         0x1B20B0,       /* FW_HEARTBEAT */
 135         0x1B2100,       /* LOCK ID */
 136         0x1B2128,       /* FW_CAPABILITIES */
 137         0x1B2138,       /* drv active */
 138         0x1B2140,       /* dev state */
 139         0x1B2144,       /* drv state */
 140         0x1B2148,       /* drv scratch */
 141         0x1B214C,       /* dev partition info */
 142         0x1B2174,       /* drv idc ver */
 143         0x1B2150,       /* fw version major */
 144         0x1B2154,       /* fw version minor */
 145         0x1B2158,       /* fw version sub */
 146         0x1B219C,       /* npar state */
 147         0x1B21FC,       /* FW_IMG_VALID */
 148         0x1B2250,       /* CMD_PEG_STATE */
 149         0x1B233C,       /* RCV_PEG_STATE */
 150         0x1B23B4,       /* ASIC TEMP */
 151         0x1B216C,       /* FW api */
 152         0x1B2170,       /* drv op mode */
 153         0x13C010,       /* flash lock */
 154         0x13C014,       /* flash unlock */
 155 };
 156 
 157 static const struct qlcnic_board_info qlcnic_boards[] = {
 158         { PCI_VENDOR_ID_QLOGIC,
 159           PCI_DEVICE_ID_QLOGIC_QLE844X,
 160           0x0,
 161           0x0,
 162           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 163         { PCI_VENDOR_ID_QLOGIC,
 164           PCI_DEVICE_ID_QLOGIC_QLE834X,
 165           PCI_VENDOR_ID_QLOGIC,
 166           0x24e,
 167           "8300 Series Dual Port 10GbE Converged Network Adapter "
 168           "(TCP/IP Networking)" },
 169         { PCI_VENDOR_ID_QLOGIC,
 170           PCI_DEVICE_ID_QLOGIC_QLE834X,
 171           PCI_VENDOR_ID_QLOGIC,
 172           0x243,
 173           "8300 Series Single Port 10GbE Converged Network Adapter "
 174           "(TCP/IP Networking)" },
 175         { PCI_VENDOR_ID_QLOGIC,
 176           PCI_DEVICE_ID_QLOGIC_QLE834X,
 177           PCI_VENDOR_ID_QLOGIC,
 178           0x24a,
 179           "8300 Series Dual Port 10GbE Converged Network Adapter "
 180           "(TCP/IP Networking)" },
 181         { PCI_VENDOR_ID_QLOGIC,
 182           PCI_DEVICE_ID_QLOGIC_QLE834X,
 183           PCI_VENDOR_ID_QLOGIC,
 184           0x246,
 185           "8300 Series Dual Port 10GbE Converged Network Adapter "
 186           "(TCP/IP Networking)" },
 187         { PCI_VENDOR_ID_QLOGIC,
 188           PCI_DEVICE_ID_QLOGIC_QLE834X,
 189           PCI_VENDOR_ID_QLOGIC,
 190           0x252,
 191           "8300 Series Dual Port 10GbE Converged Network Adapter "
 192           "(TCP/IP Networking)" },
 193         { PCI_VENDOR_ID_QLOGIC,
 194           PCI_DEVICE_ID_QLOGIC_QLE834X,
 195           PCI_VENDOR_ID_QLOGIC,
 196           0x26e,
 197           "8300 Series Dual Port 10GbE Converged Network Adapter "
 198           "(TCP/IP Networking)" },
 199         { PCI_VENDOR_ID_QLOGIC,
 200           PCI_DEVICE_ID_QLOGIC_QLE834X,
 201           PCI_VENDOR_ID_QLOGIC,
 202           0x260,
 203           "8300 Series Dual Port 10GbE Converged Network Adapter "
 204           "(TCP/IP Networking)" },
 205         { PCI_VENDOR_ID_QLOGIC,
 206           PCI_DEVICE_ID_QLOGIC_QLE834X,
 207           PCI_VENDOR_ID_QLOGIC,
 208           0x266,
 209           "8300 Series Single Port 10GbE Converged Network Adapter "
 210           "(TCP/IP Networking)" },
 211         { PCI_VENDOR_ID_QLOGIC,
 212           PCI_DEVICE_ID_QLOGIC_QLE834X,
 213           PCI_VENDOR_ID_QLOGIC,
 214           0x269,
 215           "8300 Series Dual Port 10GbE Converged Network Adapter "
 216           "(TCP/IP Networking)" },
 217         { PCI_VENDOR_ID_QLOGIC,
 218           PCI_DEVICE_ID_QLOGIC_QLE834X,
 219           PCI_VENDOR_ID_QLOGIC,
 220           0x271,
 221           "8300 Series Dual Port 10GbE Converged Network Adapter "
 222           "(TCP/IP Networking)" },
 223         { PCI_VENDOR_ID_QLOGIC,
 224           PCI_DEVICE_ID_QLOGIC_QLE834X,
 225           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 226         { PCI_VENDOR_ID_QLOGIC,
 227           PCI_DEVICE_ID_QLOGIC_QLE8830,
 228           0x0,
 229           0x0,
 230           "8830 Series 1/10GbE Controller" },
 231         { PCI_VENDOR_ID_QLOGIC,
 232           PCI_DEVICE_ID_QLOGIC_QLE824X,
 233           PCI_VENDOR_ID_QLOGIC,
 234           0x203,
 235           "8200 Series Single Port 10GbE Converged Network Adapter"
 236           "(TCP/IP Networking)" },
 237         { PCI_VENDOR_ID_QLOGIC,
 238           PCI_DEVICE_ID_QLOGIC_QLE824X,
 239           PCI_VENDOR_ID_QLOGIC,
 240           0x207,
 241           "8200 Series Dual Port 10GbE Converged Network Adapter"
 242           "(TCP/IP Networking)" },
 243         { PCI_VENDOR_ID_QLOGIC,
 244           PCI_DEVICE_ID_QLOGIC_QLE824X,
 245           PCI_VENDOR_ID_QLOGIC,
 246           0x20b,
 247           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 248         { PCI_VENDOR_ID_QLOGIC,
 249           PCI_DEVICE_ID_QLOGIC_QLE824X,
 250           PCI_VENDOR_ID_QLOGIC,
 251           0x20c,
 252           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x20f,
 257           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           0x103c, 0x3733,
 261           "NC523SFP 10Gb 2-port Server Adapter" },
 262         { PCI_VENDOR_ID_QLOGIC,
 263           PCI_DEVICE_ID_QLOGIC_QLE824X,
 264           0x103c, 0x3346,
 265           "CN1000Q Dual Port Converged Network Adapter" },
 266         { PCI_VENDOR_ID_QLOGIC,
 267           PCI_DEVICE_ID_QLOGIC_QLE824X,
 268           PCI_VENDOR_ID_QLOGIC,
 269           0x210,
 270           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 271         { PCI_VENDOR_ID_QLOGIC,
 272           PCI_DEVICE_ID_QLOGIC_QLE824X,
 273           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 274 };
 275 
 276 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 277 
 278 static const
 279 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 280 
 281 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 282 {
 283         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 284 
 285         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 286 
 287         return recv_ctx->sds_rings == NULL;
 288 }
 289 
 290 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 291 {
 292         kfree(recv_ctx->sds_rings);
 293         recv_ctx->sds_rings = NULL;
 294 }
 295 
 296 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 297 {
 298         struct net_device *netdev = adapter->netdev;
 299         struct pci_dev *pdev = adapter->pdev;
 300         u8 mac_addr[ETH_ALEN];
 301         int ret;
 302 
 303         ret = qlcnic_get_mac_address(adapter, mac_addr,
 304                                      adapter->ahw->pci_func);
 305         if (ret)
 306                 return ret;
 307 
 308         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 309         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 310 
 311         /* set station address */
 312 
 313         if (!is_valid_ether_addr(netdev->dev_addr))
 314                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 315                                         netdev->dev_addr);
 316 
 317         return 0;
 318 }
 319 
 320 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 321 {
 322         struct qlcnic_mac_vlan_list *cur;
 323         struct list_head *head;
 324 
 325         list_for_each(head, &adapter->mac_list) {
 326                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 327                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 328                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 329                                                   0, QLCNIC_MAC_DEL);
 330                         list_del(&cur->list);
 331                         kfree(cur);
 332                         return;
 333                 }
 334         }
 335 }
 336 
 337 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 338 {
 339         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 340         struct sockaddr *addr = p;
 341 
 342         if (qlcnic_sriov_vf_check(adapter))
 343                 return -EINVAL;
 344 
 345         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 346                 return -EOPNOTSUPP;
 347 
 348         if (!is_valid_ether_addr(addr->sa_data))
 349                 return -EINVAL;
 350 
 351         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
 352             ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
 353                 return 0;
 354 
 355         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 356                 netif_device_detach(netdev);
 357                 qlcnic_napi_disable(adapter);
 358         }
 359 
 360         qlcnic_delete_adapter_mac(adapter);
 361         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 362         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 363         qlcnic_set_multi(adapter->netdev);
 364 
 365         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 366                 netif_device_attach(netdev);
 367                 qlcnic_napi_enable(adapter);
 368         }
 369         return 0;
 370 }
 371 
 372 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 373                         struct net_device *netdev,
 374                         const unsigned char *addr, u16 vid)
 375 {
 376         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 377         int err = -EOPNOTSUPP;
 378 
 379         if (!adapter->fdb_mac_learn)
 380                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 381 
 382         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 383             qlcnic_sriov_check(adapter)) {
 384                 if (is_unicast_ether_addr(addr)) {
 385                         err = dev_uc_del(netdev, addr);
 386                         if (!err)
 387                                 err = qlcnic_nic_del_mac(adapter, addr);
 388                 } else if (is_multicast_ether_addr(addr)) {
 389                         err = dev_mc_del(netdev, addr);
 390                 } else {
 391                         err =  -EINVAL;
 392                 }
 393         }
 394         return err;
 395 }
 396 
 397 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 398                         struct net_device *netdev,
 399                         const unsigned char *addr, u16 vid, u16 flags,
 400                         struct netlink_ext_ack *extack)
 401 {
 402         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 403         int err = 0;
 404 
 405         if (!adapter->fdb_mac_learn)
 406                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 407 
 408         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 409             !qlcnic_sriov_check(adapter)) {
 410                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 411                 return -EOPNOTSUPP;
 412         }
 413 
 414         if (ether_addr_equal(addr, adapter->mac_addr))
 415                 return err;
 416 
 417         if (is_unicast_ether_addr(addr)) {
 418                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 419                         err = dev_uc_add_excl(netdev, addr);
 420                 else
 421                         err = -ENOMEM;
 422         } else if (is_multicast_ether_addr(addr)) {
 423                 err = dev_mc_add_excl(netdev, addr);
 424         } else {
 425                 err = -EINVAL;
 426         }
 427 
 428         return err;
 429 }
 430 
 431 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 432                         struct net_device *netdev,
 433                         struct net_device *filter_dev, int *idx)
 434 {
 435         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 436         int err = 0;
 437 
 438         if (!adapter->fdb_mac_learn)
 439                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 440 
 441         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 442             qlcnic_sriov_check(adapter))
 443                 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 444 
 445         return err;
 446 }
 447 
 448 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 449 {
 450         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 451                 usleep_range(10000, 11000);
 452 
 453         if (!adapter->fw_work.work.func)
 454                 return;
 455 
 456         cancel_delayed_work_sync(&adapter->fw_work);
 457 }
 458 
 459 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 460                                    struct netdev_phys_item_id *ppid)
 461 {
 462         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 463         struct qlcnic_hardware_context *ahw = adapter->ahw;
 464 
 465         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 466                 return -EOPNOTSUPP;
 467 
 468         ppid->id_len = sizeof(ahw->phys_port_id);
 469         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 470 
 471         return 0;
 472 }
 473 
 474 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 475                                   struct udp_tunnel_info *ti)
 476 {
 477         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 478         struct qlcnic_hardware_context *ahw = adapter->ahw;
 479 
 480         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 481                 return;
 482 
 483         /* Adapter supports only one VXLAN port. Use very first port
 484          * for enabling offload
 485          */
 486         if (!qlcnic_encap_rx_offload(adapter))
 487                 return;
 488         if (!ahw->vxlan_port_count) {
 489                 ahw->vxlan_port_count = 1;
 490                 ahw->vxlan_port = ntohs(ti->port);
 491                 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 492                 return;
 493         }
 494         if (ahw->vxlan_port == ntohs(ti->port))
 495                 ahw->vxlan_port_count++;
 496 
 497 }
 498 
 499 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 500                                   struct udp_tunnel_info *ti)
 501 {
 502         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 503         struct qlcnic_hardware_context *ahw = adapter->ahw;
 504 
 505         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 506                 return;
 507 
 508         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
 509             (ahw->vxlan_port != ntohs(ti->port)))
 510                 return;
 511 
 512         ahw->vxlan_port_count--;
 513         if (!ahw->vxlan_port_count)
 514                 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 515 }
 516 
 517 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 518                                                struct net_device *dev,
 519                                                netdev_features_t features)
 520 {
 521         features = vlan_features_check(skb, features);
 522         return vxlan_features_check(skb, features);
 523 }
 524 
 525 static const struct net_device_ops qlcnic_netdev_ops = {
 526         .ndo_open          = qlcnic_open,
 527         .ndo_stop          = qlcnic_close,
 528         .ndo_start_xmit    = qlcnic_xmit_frame,
 529         .ndo_get_stats     = qlcnic_get_stats,
 530         .ndo_validate_addr = eth_validate_addr,
 531         .ndo_set_rx_mode   = qlcnic_set_multi,
 532         .ndo_set_mac_address    = qlcnic_set_mac,
 533         .ndo_change_mtu    = qlcnic_change_mtu,
 534         .ndo_fix_features  = qlcnic_fix_features,
 535         .ndo_set_features  = qlcnic_set_features,
 536         .ndo_tx_timeout    = qlcnic_tx_timeout,
 537         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 538         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 539         .ndo_fdb_add            = qlcnic_fdb_add,
 540         .ndo_fdb_del            = qlcnic_fdb_del,
 541         .ndo_fdb_dump           = qlcnic_fdb_dump,
 542         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 543         .ndo_udp_tunnel_add     = qlcnic_add_vxlan_port,
 544         .ndo_udp_tunnel_del     = qlcnic_del_vxlan_port,
 545         .ndo_features_check     = qlcnic_features_check,
 546 #ifdef CONFIG_QLCNIC_SRIOV
 547         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 548         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 549         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 550         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 551         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 552 #endif
 553 };
 554 
 555 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 556         .ndo_open          = qlcnic_open,
 557 };
 558 
 559 static struct qlcnic_nic_template qlcnic_ops = {
 560         .config_bridged_mode    = qlcnic_config_bridged_mode,
 561         .config_led             = qlcnic_82xx_config_led,
 562         .start_firmware         = qlcnic_82xx_start_firmware,
 563         .request_reset          = qlcnic_82xx_dev_request_reset,
 564         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 565         .napi_add               = qlcnic_82xx_napi_add,
 566         .napi_del               = qlcnic_82xx_napi_del,
 567         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 568         .shutdown               = qlcnic_82xx_shutdown,
 569         .resume                 = qlcnic_82xx_resume,
 570         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 571 };
 572 
 573 struct qlcnic_nic_template qlcnic_vf_ops = {
 574         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 575         .config_led             = qlcnicvf_config_led,
 576         .start_firmware         = qlcnicvf_start_firmware
 577 };
 578 
 579 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 580         .read_crb                       = qlcnic_82xx_read_crb,
 581         .write_crb                      = qlcnic_82xx_write_crb,
 582         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 583         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 584         .get_mac_address                = qlcnic_82xx_get_mac_address,
 585         .setup_intr                     = qlcnic_82xx_setup_intr,
 586         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 587         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 588         .get_func_no                    = qlcnic_82xx_get_func_no,
 589         .api_lock                       = qlcnic_82xx_api_lock,
 590         .api_unlock                     = qlcnic_82xx_api_unlock,
 591         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 592         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 593         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 594         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 595         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 596         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 597         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 598         .setup_link_event               = qlcnic_82xx_linkevent_request,
 599         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 600         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 601         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 602         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 603         .napi_enable                    = qlcnic_82xx_napi_enable,
 604         .napi_disable                   = qlcnic_82xx_napi_disable,
 605         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 606         .config_rss                     = qlcnic_82xx_config_rss,
 607         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 608         .config_loopback                = qlcnic_82xx_set_lb_mode,
 609         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 610         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 611         .change_l2_filter               = qlcnic_82xx_change_filter,
 612         .get_board_info                 = qlcnic_82xx_get_board_info,
 613         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 614         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 615         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 616         .io_error_detected              = qlcnic_82xx_io_error_detected,
 617         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 618         .io_resume                      = qlcnic_82xx_io_resume,
 619         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 620         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 621         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 622         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 623         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 624         .get_saved_state                = qlcnic_82xx_get_saved_state,
 625         .set_saved_state                = qlcnic_82xx_set_saved_state,
 626         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 627         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 628         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 629         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 630         .encap_rx_offload               = qlcnic_82xx_encap_rx_offload,
 631         .encap_tx_offload               = qlcnic_82xx_encap_tx_offload,
 632 };
 633 
 634 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 635 {
 636         struct qlcnic_hardware_context *ahw = adapter->ahw;
 637 
 638         if (qlcnic_82xx_check(adapter) &&
 639             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 640                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 641                 return 0;
 642         } else {
 643                 return 1;
 644         }
 645 }
 646 
 647 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 648                             int queue_type)
 649 {
 650         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 651 
 652         if (queue_type == QLCNIC_RX_QUEUE)
 653                 max_rings = adapter->max_sds_rings;
 654         else if (queue_type == QLCNIC_TX_QUEUE)
 655                 max_rings = adapter->max_tx_rings;
 656 
 657         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 658                                               max_rings));
 659 
 660         if (ring_cnt > num_rings)
 661                 return num_rings;
 662         else
 663                 return ring_cnt;
 664 }
 665 
 666 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 667 {
 668         /* 83xx adapter does not have max_tx_rings intialized in probe */
 669         if (adapter->max_tx_rings)
 670                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 671                                                          QLCNIC_TX_QUEUE);
 672         else
 673                 adapter->drv_tx_rings = tx_cnt;
 674 }
 675 
 676 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 677 {
 678         /* 83xx adapter does not have max_sds_rings intialized in probe */
 679         if (adapter->max_sds_rings)
 680                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 681                                                           QLCNIC_RX_QUEUE);
 682         else
 683                 adapter->drv_sds_rings = rx_cnt;
 684 }
 685 
 686 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 687 {
 688         struct pci_dev *pdev = adapter->pdev;
 689         int num_msix = 0, err = 0, vector;
 690 
 691         adapter->flags &= ~QLCNIC_TSS_RSS;
 692 
 693         if (adapter->drv_tss_rings > 0)
 694                 num_msix += adapter->drv_tss_rings;
 695         else
 696                 num_msix += adapter->drv_tx_rings;
 697 
 698         if (adapter->drv_rss_rings > 0)
 699                 num_msix += adapter->drv_rss_rings;
 700         else
 701                 num_msix += adapter->drv_sds_rings;
 702 
 703         if (qlcnic_83xx_check(adapter))
 704                 num_msix += 1;
 705 
 706         if (!adapter->msix_entries) {
 707                 adapter->msix_entries = kcalloc(num_msix,
 708                                                 sizeof(struct msix_entry),
 709                                                 GFP_KERNEL);
 710                 if (!adapter->msix_entries)
 711                         return -ENOMEM;
 712         }
 713 
 714         for (vector = 0; vector < num_msix; vector++)
 715                 adapter->msix_entries[vector].entry = vector;
 716 
 717 restore:
 718         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 719         if (err == -ENOSPC) {
 720                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 721                         return err;
 722 
 723                 netdev_info(adapter->netdev,
 724                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 725                             num_msix, err);
 726 
 727                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 728 
 729                 /* Set rings to 0 so we can restore original TSS/RSS count */
 730                 adapter->drv_tss_rings = 0;
 731                 adapter->drv_rss_rings = 0;
 732 
 733                 if (qlcnic_83xx_check(adapter))
 734                         num_msix += 1;
 735 
 736                 netdev_info(adapter->netdev,
 737                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 738                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 739                             num_msix);
 740 
 741                 goto restore;
 742         } else if (err < 0) {
 743                 return err;
 744         }
 745 
 746         adapter->ahw->num_msix = num_msix;
 747         if (adapter->drv_tss_rings > 0)
 748                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 749 
 750         if (adapter->drv_rss_rings > 0)
 751                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 752 
 753         return 0;
 754 }
 755 
 756 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 757 {
 758         struct pci_dev *pdev = adapter->pdev;
 759         int err, vector;
 760 
 761         if (!adapter->msix_entries) {
 762                 adapter->msix_entries = kcalloc(num_msix,
 763                                                 sizeof(struct msix_entry),
 764                                                 GFP_KERNEL);
 765                 if (!adapter->msix_entries)
 766                         return -ENOMEM;
 767         }
 768 
 769         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 770 
 771         if (adapter->ahw->msix_supported) {
 772 enable_msix:
 773                 for (vector = 0; vector < num_msix; vector++)
 774                         adapter->msix_entries[vector].entry = vector;
 775 
 776                 err = pci_enable_msix_range(pdev,
 777                                             adapter->msix_entries, 1, num_msix);
 778 
 779                 if (err == num_msix) {
 780                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 781                         adapter->ahw->num_msix = num_msix;
 782                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 783                         return 0;
 784                 } else if (err > 0) {
 785                         pci_disable_msix(pdev);
 786 
 787                         dev_info(&pdev->dev,
 788                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 789                                  num_msix, err);
 790 
 791                         if (qlcnic_82xx_check(adapter)) {
 792                                 num_msix = rounddown_pow_of_two(err);
 793                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 794                                         return -ENOSPC;
 795                         } else {
 796                                 num_msix = rounddown_pow_of_two(err - 1);
 797                                 num_msix += 1;
 798                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 799                                         return -ENOSPC;
 800                         }
 801 
 802                         if (qlcnic_82xx_check(adapter) &&
 803                             !qlcnic_check_multi_tx(adapter)) {
 804                                 adapter->drv_sds_rings = num_msix;
 805                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 806                         } else {
 807                                 /* Distribute vectors equally */
 808                                 adapter->drv_tx_rings = num_msix / 2;
 809                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 810                         }
 811 
 812                         if (num_msix) {
 813                                 dev_info(&pdev->dev,
 814                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 815                                          num_msix);
 816                                 goto enable_msix;
 817                         }
 818                 } else {
 819                         dev_info(&pdev->dev,
 820                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 821                                  num_msix, err);
 822                         return err;
 823                 }
 824         }
 825 
 826         return -EIO;
 827 }
 828 
 829 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 830 {
 831         int num_msix;
 832 
 833         num_msix = adapter->drv_sds_rings;
 834 
 835         if (qlcnic_check_multi_tx(adapter))
 836                 num_msix += adapter->drv_tx_rings;
 837         else
 838                 num_msix += QLCNIC_SINGLE_RING;
 839 
 840         return num_msix;
 841 }
 842 
 843 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 844 {
 845         int err = 0;
 846         u32 offset, mask_reg;
 847         const struct qlcnic_legacy_intr_set *legacy_intrp;
 848         struct qlcnic_hardware_context *ahw = adapter->ahw;
 849         struct pci_dev *pdev = adapter->pdev;
 850 
 851         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 852                 adapter->flags |= QLCNIC_MSI_ENABLED;
 853                 offset = msi_tgt_status[adapter->ahw->pci_func];
 854                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 855                                                             offset);
 856                 dev_info(&pdev->dev, "using msi interrupts\n");
 857                 adapter->msix_entries[0].vector = pdev->irq;
 858                 return err;
 859         }
 860 
 861         if (qlcnic_use_msi || qlcnic_use_msi_x)
 862                 return -EOPNOTSUPP;
 863 
 864         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 865         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 866         offset = legacy_intrp->tgt_status_reg;
 867         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 868         mask_reg = legacy_intrp->tgt_mask_reg;
 869         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 870         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 871         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 872         dev_info(&pdev->dev, "using legacy interrupts\n");
 873         adapter->msix_entries[0].vector = pdev->irq;
 874         return err;
 875 }
 876 
 877 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 878 {
 879         int num_msix, err = 0;
 880 
 881         if (adapter->flags & QLCNIC_TSS_RSS) {
 882                 err = qlcnic_setup_tss_rss_intr(adapter);
 883                 if (err < 0)
 884                         return err;
 885                 num_msix = adapter->ahw->num_msix;
 886         } else {
 887                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 888 
 889                 err = qlcnic_enable_msix(adapter, num_msix);
 890                 if (err == -ENOMEM)
 891                         return err;
 892 
 893                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 894                         qlcnic_disable_multi_tx(adapter);
 895                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 896 
 897                         err = qlcnic_enable_msi_legacy(adapter);
 898                         if (err)
 899                                 return err;
 900                 }
 901         }
 902 
 903         return 0;
 904 }
 905 
 906 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 907 {
 908         struct qlcnic_hardware_context *ahw = adapter->ahw;
 909         int err, i;
 910 
 911         if (qlcnic_check_multi_tx(adapter) &&
 912             !ahw->diag_test &&
 913             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 914                 ahw->intr_tbl =
 915                         vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
 916                                            ahw->num_msix));
 917                 if (!ahw->intr_tbl)
 918                         return -ENOMEM;
 919 
 920                 for (i = 0; i < ahw->num_msix; i++) {
 921                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 922                         ahw->intr_tbl[i].id = i;
 923                         ahw->intr_tbl[i].src = 0;
 924                 }
 925 
 926                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 927                 if (err)
 928                         dev_err(&adapter->pdev->dev,
 929                                 "Failed to configure Interrupt for %d vector\n",
 930                                 ahw->num_msix);
 931                 return err;
 932         }
 933 
 934         return 0;
 935 }
 936 
 937 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 938 {
 939         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 940                 pci_disable_msix(adapter->pdev);
 941         if (adapter->flags & QLCNIC_MSI_ENABLED)
 942                 pci_disable_msi(adapter->pdev);
 943 
 944         kfree(adapter->msix_entries);
 945         adapter->msix_entries = NULL;
 946 
 947         if (adapter->ahw->intr_tbl) {
 948                 vfree(adapter->ahw->intr_tbl);
 949                 adapter->ahw->intr_tbl = NULL;
 950         }
 951 }
 952 
 953 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 954 {
 955         if (ahw->pci_base0 != NULL)
 956                 iounmap(ahw->pci_base0);
 957 }
 958 
 959 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 960 {
 961         struct qlcnic_hardware_context *ahw = adapter->ahw;
 962         struct qlcnic_pci_info *pci_info;
 963         int ret;
 964 
 965         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 966                 switch (ahw->port_type) {
 967                 case QLCNIC_GBE:
 968                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 969                         break;
 970                 case QLCNIC_XGBE:
 971                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 972                         break;
 973                 }
 974                 return 0;
 975         }
 976 
 977         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 978                 return 0;
 979 
 980         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 981         if (!pci_info)
 982                 return -ENOMEM;
 983 
 984         ret = qlcnic_get_pci_info(adapter, pci_info);
 985         kfree(pci_info);
 986         return ret;
 987 }
 988 
 989 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 990 {
 991         bool ret = false;
 992 
 993         if (qlcnic_84xx_check(adapter)) {
 994                 ret = true;
 995         } else if (qlcnic_83xx_check(adapter)) {
 996                 if (adapter->ahw->extra_capability[0] &
 997                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 998                         ret = true;
 999                 else
1000                         ret = false;
1001         }
1002 
1003         return ret;
1004 }
1005 
1006 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1007 {
1008         struct qlcnic_hardware_context *ahw = adapter->ahw;
1009         struct qlcnic_pci_info *pci_info;
1010         int i, id = 0, ret = 0, j = 0;
1011         u16 act_pci_func;
1012         u8 pfn;
1013 
1014         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1015         if (!pci_info)
1016                 return -ENOMEM;
1017 
1018         ret = qlcnic_get_pci_info(adapter, pci_info);
1019         if (ret)
1020                 goto err_pci_info;
1021 
1022         act_pci_func = ahw->total_nic_func;
1023 
1024         adapter->npars = kcalloc(act_pci_func,
1025                                  sizeof(struct qlcnic_npar_info),
1026                                  GFP_KERNEL);
1027         if (!adapter->npars) {
1028                 ret = -ENOMEM;
1029                 goto err_pci_info;
1030         }
1031 
1032         adapter->eswitch = kcalloc(QLCNIC_NIU_MAX_XG_PORTS,
1033                                    sizeof(struct qlcnic_eswitch),
1034                                    GFP_KERNEL);
1035         if (!adapter->eswitch) {
1036                 ret = -ENOMEM;
1037                 goto err_npars;
1038         }
1039 
1040         for (i = 0; i < ahw->max_vnic_func; i++) {
1041                 pfn = pci_info[i].id;
1042 
1043                 if (pfn >= ahw->max_vnic_func) {
1044                         ret = -EINVAL;
1045                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1046                                 __func__, pfn, ahw->max_vnic_func);
1047                         goto err_eswitch;
1048                 }
1049 
1050                 if (!pci_info[i].active ||
1051                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1052                         continue;
1053 
1054                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1055                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1056                                                                  &id))
1057                                 adapter->npars[j].eswitch_status = true;
1058                         else
1059                                 continue;
1060                 } else {
1061                         adapter->npars[j].eswitch_status = true;
1062                 }
1063 
1064                 adapter->npars[j].pci_func = pfn;
1065                 adapter->npars[j].active = (u8)pci_info[i].active;
1066                 adapter->npars[j].type = (u8)pci_info[i].type;
1067                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1068                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1069                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1070 
1071                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1072                 j++;
1073         }
1074 
1075         /* Update eSwitch status for adapters without per port eSwitch
1076          * configuration capability
1077          */
1078         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1079                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1080                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1081         }
1082 
1083         kfree(pci_info);
1084         return 0;
1085 
1086 err_eswitch:
1087         kfree(adapter->eswitch);
1088         adapter->eswitch = NULL;
1089 err_npars:
1090         kfree(adapter->npars);
1091         adapter->npars = NULL;
1092 err_pci_info:
1093         kfree(pci_info);
1094 
1095         return ret;
1096 }
1097 
1098 static int
1099 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1100 {
1101         u8 id;
1102         int ret;
1103         u32 data = QLCNIC_MGMT_FUNC;
1104         struct qlcnic_hardware_context *ahw = adapter->ahw;
1105 
1106         ret = qlcnic_api_lock(adapter);
1107         if (ret)
1108                 goto err_lock;
1109 
1110         id = ahw->pci_func;
1111         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1112         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1113                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1114         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1115         qlcnic_api_unlock(adapter);
1116 err_lock:
1117         return ret;
1118 }
1119 
1120 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1121                             const struct pci_device_id *ent)
1122 {
1123         u32 op_mode, priv_level;
1124 
1125         /* Determine FW API version */
1126         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1127                                                            QLCNIC_FW_API);
1128 
1129         /* Find PCI function number */
1130         qlcnic_get_func_no(adapter);
1131 
1132         /* Determine function privilege level */
1133         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1134         if (op_mode == QLC_DEV_DRV_DEFAULT)
1135                 priv_level = QLCNIC_MGMT_FUNC;
1136         else
1137                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1138 
1139         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1140                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1141                 dev_info(&adapter->pdev->dev,
1142                         "HAL Version: %d Non Privileged function\n",
1143                          adapter->ahw->fw_hal_version);
1144                 adapter->nic_ops = &qlcnic_vf_ops;
1145         } else
1146                 adapter->nic_ops = &qlcnic_ops;
1147 }
1148 
1149 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1150 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1151 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1152 {
1153         switch (dev_id) {
1154         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1155                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1156                 break;
1157         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1158         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1159         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1160         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1161         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1162         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1163                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1164                 break;
1165         default:
1166                 *bar = 0;
1167         }
1168 }
1169 
1170 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1171                                 struct qlcnic_hardware_context *ahw)
1172 {
1173         u32 offset;
1174         void __iomem *mem_ptr0 = NULL;
1175         unsigned long mem_len, pci_len0 = 0, bar0_len;
1176 
1177         /* remap phys address */
1178         mem_len = pci_resource_len(pdev, 0);
1179 
1180         qlcnic_get_bar_length(pdev->device, &bar0_len);
1181         if (mem_len >= bar0_len) {
1182 
1183                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1184                 if (mem_ptr0 == NULL) {
1185                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1186                         return -EIO;
1187                 }
1188                 pci_len0 = mem_len;
1189         } else {
1190                 return -EIO;
1191         }
1192 
1193         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1194 
1195         ahw->pci_base0 = mem_ptr0;
1196         ahw->pci_len0 = pci_len0;
1197         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1198         qlcnic_get_ioaddr(ahw, offset);
1199 
1200         return 0;
1201 }
1202 
1203 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1204                                          int index)
1205 {
1206         struct pci_dev *pdev = adapter->pdev;
1207         unsigned short subsystem_vendor;
1208         bool ret = true;
1209 
1210         subsystem_vendor = pdev->subsystem_vendor;
1211 
1212         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1213             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1214                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1215                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1216                         ret = true;
1217                 else
1218                         ret = false;
1219         }
1220 
1221         return ret;
1222 }
1223 
1224 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1225 {
1226         struct pci_dev *pdev = adapter->pdev;
1227         int i, found = 0;
1228 
1229         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1230                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1231                     qlcnic_boards[i].device == pdev->device &&
1232                     qlcnic_validate_subsystem_id(adapter, i)) {
1233                         found = 1;
1234                         break;
1235                 }
1236         }
1237 
1238         if (!found)
1239                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1240         else
1241                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1242                         qlcnic_boards[i].short_name);
1243 }
1244 
1245 static void
1246 qlcnic_check_options(struct qlcnic_adapter *adapter)
1247 {
1248         int err;
1249         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1250         struct pci_dev *pdev = adapter->pdev;
1251         struct qlcnic_hardware_context *ahw = adapter->ahw;
1252         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1253 
1254         prev_fw_version = adapter->fw_version;
1255 
1256         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1257         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1258         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1259 
1260         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1261 
1262         err = qlcnic_get_board_info(adapter);
1263         if (err) {
1264                 dev_err(&pdev->dev, "Error getting board config info.\n");
1265                 return;
1266         }
1267         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1268                 if (fw_dump->tmpl_hdr == NULL ||
1269                                 adapter->fw_version > prev_fw_version) {
1270                         vfree(fw_dump->tmpl_hdr);
1271                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1272                                 dev_info(&pdev->dev,
1273                                         "Supports FW dump capability\n");
1274                 }
1275         }
1276 
1277         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1278                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1279 
1280         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1281                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1282                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1283                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1284                 } else {
1285                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1286                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1287                 }
1288 
1289                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1291 
1292         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1293                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1294                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1296                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1297         }
1298 
1299         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1300 
1301         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1302 
1303         adapter->max_rds_rings = MAX_RDS_RINGS;
1304 }
1305 
1306 static int
1307 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1308 {
1309         struct qlcnic_info nic_info;
1310         int err = 0;
1311 
1312         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1313         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1314         if (err)
1315                 return err;
1316 
1317         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1318         adapter->ahw->switch_mode = nic_info.switch_mode;
1319         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1320         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1321         adapter->ahw->capabilities = nic_info.capabilities;
1322 
1323         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1324                 u32 temp;
1325                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1326                 if (err == -EIO)
1327                         return err;
1328                 adapter->ahw->extra_capability[0] = temp;
1329         } else {
1330                 adapter->ahw->extra_capability[0] = 0;
1331         }
1332 
1333         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1334         adapter->ahw->max_mtu = nic_info.max_mtu;
1335 
1336         if (adapter->ahw->capabilities & BIT_6) {
1337                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1338                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1339                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1340                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1341 
1342                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1343         } else {
1344                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1345                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1346                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1347                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1348         }
1349 
1350         return err;
1351 }
1352 
1353 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1354                             struct qlcnic_esw_func_cfg *esw_cfg)
1355 {
1356         if (esw_cfg->discard_tagged)
1357                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1358         else
1359                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1360 
1361         if (esw_cfg->vlan_id) {
1362                 adapter->rx_pvid = esw_cfg->vlan_id;
1363                 adapter->tx_pvid = esw_cfg->vlan_id;
1364         } else {
1365                 adapter->rx_pvid = 0;
1366                 adapter->tx_pvid = 0;
1367         }
1368 }
1369 
1370 static int
1371 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1372 {
1373         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1374         int err;
1375 
1376         if (qlcnic_sriov_vf_check(adapter)) {
1377                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1378                 if (err) {
1379                         netdev_err(netdev,
1380                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1381                                    vid, err);
1382                         return err;
1383                 }
1384         }
1385 
1386         set_bit(vid, adapter->vlans);
1387         return 0;
1388 }
1389 
1390 static int
1391 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1392 {
1393         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1394         int err;
1395 
1396         if (qlcnic_sriov_vf_check(adapter)) {
1397                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1398                 if (err) {
1399                         netdev_err(netdev,
1400                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1401                                    vid, err);
1402                         return err;
1403                 }
1404         }
1405 
1406         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1407         clear_bit(vid, adapter->vlans);
1408         return 0;
1409 }
1410 
1411 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1412                                       struct qlcnic_esw_func_cfg *esw_cfg)
1413 {
1414         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1415                                 QLCNIC_PROMISC_DISABLED);
1416 
1417         if (esw_cfg->mac_anti_spoof)
1418                 adapter->flags |= QLCNIC_MACSPOOF;
1419 
1420         if (!esw_cfg->mac_override)
1421                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1422 
1423         if (!esw_cfg->promisc_mode)
1424                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1425 }
1426 
1427 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1428 {
1429         struct qlcnic_esw_func_cfg esw_cfg;
1430 
1431         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1432                 return 0;
1433 
1434         esw_cfg.pci_func = adapter->ahw->pci_func;
1435         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1436                         return -EIO;
1437         qlcnic_set_vlan_config(adapter, &esw_cfg);
1438         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1439         qlcnic_set_netdev_features(adapter, &esw_cfg);
1440 
1441         return 0;
1442 }
1443 
1444 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1445                                 struct qlcnic_esw_func_cfg *esw_cfg)
1446 {
1447         struct net_device *netdev = adapter->netdev;
1448 
1449         if (qlcnic_83xx_check(adapter))
1450                 return;
1451 
1452         adapter->offload_flags = esw_cfg->offload_flags;
1453         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1454         netdev_update_features(netdev);
1455         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1456 }
1457 
1458 static int
1459 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1460 {
1461         u32 op_mode, priv_level;
1462         int err = 0;
1463 
1464         err = qlcnic_initialize_nic(adapter);
1465         if (err)
1466                 return err;
1467 
1468         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1469                 return 0;
1470 
1471         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1472         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1473 
1474         if (op_mode == QLC_DEV_DRV_DEFAULT)
1475                 priv_level = QLCNIC_MGMT_FUNC;
1476         else
1477                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1478 
1479         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1480                 if (priv_level == QLCNIC_MGMT_FUNC) {
1481                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1482                         err = qlcnic_init_pci_info(adapter);
1483                         if (err)
1484                                 return err;
1485                         /* Set privilege level for other functions */
1486                         qlcnic_set_function_modes(adapter);
1487                         dev_info(&adapter->pdev->dev,
1488                                 "HAL Version: %d, Management function\n",
1489                                  adapter->ahw->fw_hal_version);
1490                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1491                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1492                         dev_info(&adapter->pdev->dev,
1493                                 "HAL Version: %d, Privileged function\n",
1494                                  adapter->ahw->fw_hal_version);
1495                 }
1496         } else {
1497                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1498         }
1499 
1500         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1501 
1502         return err;
1503 }
1504 
1505 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1506 {
1507         struct qlcnic_esw_func_cfg esw_cfg;
1508         struct qlcnic_npar_info *npar;
1509         u8 i;
1510 
1511         if (adapter->need_fw_reset)
1512                 return 0;
1513 
1514         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1515                 if (!adapter->npars[i].eswitch_status)
1516                         continue;
1517 
1518                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1519                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1520                 esw_cfg.mac_override = BIT_0;
1521                 esw_cfg.promisc_mode = BIT_0;
1522                 if (qlcnic_82xx_check(adapter)) {
1523                         esw_cfg.offload_flags = BIT_0;
1524                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1525                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1526                 }
1527                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1528                         return -EIO;
1529                 npar = &adapter->npars[i];
1530                 npar->pvid = esw_cfg.vlan_id;
1531                 npar->mac_override = esw_cfg.mac_override;
1532                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1533                 npar->discard_tagged = esw_cfg.discard_tagged;
1534                 npar->promisc_mode = esw_cfg.promisc_mode;
1535                 npar->offload_flags = esw_cfg.offload_flags;
1536         }
1537 
1538         return 0;
1539 }
1540 
1541 
1542 static int
1543 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1544                         struct qlcnic_npar_info *npar, int pci_func)
1545 {
1546         struct qlcnic_esw_func_cfg esw_cfg;
1547         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1548         esw_cfg.pci_func = pci_func;
1549         esw_cfg.vlan_id = npar->pvid;
1550         esw_cfg.mac_override = npar->mac_override;
1551         esw_cfg.discard_tagged = npar->discard_tagged;
1552         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1553         esw_cfg.offload_flags = npar->offload_flags;
1554         esw_cfg.promisc_mode = npar->promisc_mode;
1555         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1556                 return -EIO;
1557 
1558         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1559         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1560                 return -EIO;
1561 
1562         return 0;
1563 }
1564 
1565 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1566 {
1567         int i, err;
1568         struct qlcnic_npar_info *npar;
1569         struct qlcnic_info nic_info;
1570         u8 pci_func;
1571 
1572         if (qlcnic_82xx_check(adapter))
1573                 if (!adapter->need_fw_reset)
1574                         return 0;
1575 
1576         /* Set the NPAR config data after FW reset */
1577         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1578                 npar = &adapter->npars[i];
1579                 pci_func = npar->pci_func;
1580                 if (!adapter->npars[i].eswitch_status)
1581                         continue;
1582 
1583                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1584                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1585                 if (err)
1586                         return err;
1587                 nic_info.min_tx_bw = npar->min_bw;
1588                 nic_info.max_tx_bw = npar->max_bw;
1589                 err = qlcnic_set_nic_info(adapter, &nic_info);
1590                 if (err)
1591                         return err;
1592 
1593                 if (npar->enable_pm) {
1594                         err = qlcnic_config_port_mirroring(adapter,
1595                                                            npar->dest_npar, 1,
1596                                                            pci_func);
1597                         if (err)
1598                                 return err;
1599                 }
1600                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1601                 if (err)
1602                         return err;
1603         }
1604         return 0;
1605 }
1606 
1607 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1608 {
1609         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1610         u32 npar_state;
1611 
1612         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1613                 return 0;
1614 
1615         npar_state = QLC_SHARED_REG_RD32(adapter,
1616                                          QLCNIC_CRB_DEV_NPAR_STATE);
1617         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1618                 msleep(1000);
1619                 npar_state = QLC_SHARED_REG_RD32(adapter,
1620                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1621         }
1622         if (!npar_opt_timeo) {
1623                 dev_err(&adapter->pdev->dev,
1624                         "Waiting for NPAR state to operational timeout\n");
1625                 return -EIO;
1626         }
1627         return 0;
1628 }
1629 
1630 static int
1631 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1632 {
1633         int err;
1634 
1635         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1636             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1637                 return 0;
1638 
1639         err = qlcnic_set_default_offload_settings(adapter);
1640         if (err)
1641                 return err;
1642 
1643         err = qlcnic_reset_npar_config(adapter);
1644         if (err)
1645                 return err;
1646 
1647         qlcnic_dev_set_npar_ready(adapter);
1648 
1649         return err;
1650 }
1651 
1652 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1653 {
1654         int err;
1655 
1656         err = qlcnic_can_start_firmware(adapter);
1657         if (err < 0)
1658                 return err;
1659         else if (!err)
1660                 goto check_fw_status;
1661 
1662         if (qlcnic_load_fw_file)
1663                 qlcnic_request_firmware(adapter);
1664         else {
1665                 err = qlcnic_check_flash_fw_ver(adapter);
1666                 if (err)
1667                         goto err_out;
1668 
1669                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1670         }
1671 
1672         err = qlcnic_need_fw_reset(adapter);
1673         if (err == 0)
1674                 goto check_fw_status;
1675 
1676         err = qlcnic_pinit_from_rom(adapter);
1677         if (err)
1678                 goto err_out;
1679 
1680         err = qlcnic_load_firmware(adapter);
1681         if (err)
1682                 goto err_out;
1683 
1684         qlcnic_release_firmware(adapter);
1685         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1686 
1687 check_fw_status:
1688         err = qlcnic_check_fw_status(adapter);
1689         if (err)
1690                 goto err_out;
1691 
1692         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1693         qlcnic_idc_debug_info(adapter, 1);
1694         err = qlcnic_check_eswitch_mode(adapter);
1695         if (err) {
1696                 dev_err(&adapter->pdev->dev,
1697                         "Memory allocation failed for eswitch\n");
1698                 goto err_out;
1699         }
1700         err = qlcnic_set_mgmt_operations(adapter);
1701         if (err)
1702                 goto err_out;
1703 
1704         qlcnic_check_options(adapter);
1705         adapter->need_fw_reset = 0;
1706 
1707         qlcnic_release_firmware(adapter);
1708         return 0;
1709 
1710 err_out:
1711         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1712         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1713 
1714         qlcnic_release_firmware(adapter);
1715         return err;
1716 }
1717 
1718 static int
1719 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1720 {
1721         irq_handler_t handler;
1722         struct qlcnic_host_sds_ring *sds_ring;
1723         struct qlcnic_host_tx_ring *tx_ring;
1724         int err, ring, num_sds_rings;
1725 
1726         unsigned long flags = 0;
1727         struct net_device *netdev = adapter->netdev;
1728         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1729 
1730         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1731                 if (qlcnic_82xx_check(adapter))
1732                         handler = qlcnic_tmp_intr;
1733                 else
1734                         handler = qlcnic_83xx_tmp_intr;
1735                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1736                         flags |= IRQF_SHARED;
1737 
1738         } else {
1739                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1740                         handler = qlcnic_msix_intr;
1741                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1742                         handler = qlcnic_msi_intr;
1743                 else {
1744                         flags |= IRQF_SHARED;
1745                         if (qlcnic_82xx_check(adapter))
1746                                 handler = qlcnic_intr;
1747                         else
1748                                 handler = qlcnic_83xx_intr;
1749                 }
1750         }
1751         adapter->irq = netdev->irq;
1752 
1753         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1754                 if (qlcnic_82xx_check(adapter) ||
1755                     (qlcnic_83xx_check(adapter) &&
1756                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1757                         num_sds_rings = adapter->drv_sds_rings;
1758                         for (ring = 0; ring < num_sds_rings; ring++) {
1759                                 sds_ring = &recv_ctx->sds_rings[ring];
1760                                 if (qlcnic_82xx_check(adapter) &&
1761                                     !qlcnic_check_multi_tx(adapter) &&
1762                                     (ring == (num_sds_rings - 1))) {
1763                                         if (!(adapter->flags &
1764                                               QLCNIC_MSIX_ENABLED))
1765                                                 snprintf(sds_ring->name,
1766                                                          sizeof(sds_ring->name),
1767                                                          "qlcnic");
1768                                         else
1769                                                 snprintf(sds_ring->name,
1770                                                          sizeof(sds_ring->name),
1771                                                          "%s-tx-0-rx-%d",
1772                                                          netdev->name, ring);
1773                                 } else {
1774                                         snprintf(sds_ring->name,
1775                                                  sizeof(sds_ring->name),
1776                                                  "%s-rx-%d",
1777                                                  netdev->name, ring);
1778                                 }
1779                                 err = request_irq(sds_ring->irq, handler, flags,
1780                                                   sds_ring->name, sds_ring);
1781                                 if (err)
1782                                         return err;
1783                         }
1784                 }
1785                 if ((qlcnic_82xx_check(adapter) &&
1786                      qlcnic_check_multi_tx(adapter)) ||
1787                     (qlcnic_83xx_check(adapter) &&
1788                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1789                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1790                         handler = qlcnic_msix_tx_intr;
1791                         for (ring = 0; ring < adapter->drv_tx_rings;
1792                              ring++) {
1793                                 tx_ring = &adapter->tx_ring[ring];
1794                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1795                                          "%s-tx-%d", netdev->name, ring);
1796                                 err = request_irq(tx_ring->irq, handler, flags,
1797                                                   tx_ring->name, tx_ring);
1798                                 if (err)
1799                                         return err;
1800                         }
1801                 }
1802         }
1803         return 0;
1804 }
1805 
1806 static void
1807 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1808 {
1809         int ring;
1810         struct qlcnic_host_sds_ring *sds_ring;
1811         struct qlcnic_host_tx_ring *tx_ring;
1812 
1813         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1814 
1815         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1816                 if (qlcnic_82xx_check(adapter) ||
1817                     (qlcnic_83xx_check(adapter) &&
1818                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1819                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1820                                 sds_ring = &recv_ctx->sds_rings[ring];
1821                                 free_irq(sds_ring->irq, sds_ring);
1822                         }
1823                 }
1824                 if ((qlcnic_83xx_check(adapter) &&
1825                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1826                     (qlcnic_82xx_check(adapter) &&
1827                      qlcnic_check_multi_tx(adapter))) {
1828                         for (ring = 0; ring < adapter->drv_tx_rings;
1829                              ring++) {
1830                                 tx_ring = &adapter->tx_ring[ring];
1831                                 if (tx_ring->irq)
1832                                         free_irq(tx_ring->irq, tx_ring);
1833                         }
1834                 }
1835         }
1836 }
1837 
1838 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1839 {
1840         u32 capab = 0;
1841 
1842         if (qlcnic_82xx_check(adapter)) {
1843                 if (adapter->ahw->extra_capability[0] &
1844                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1845                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1846         } else {
1847                 capab = adapter->ahw->capabilities;
1848                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1849                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1850         }
1851 }
1852 
1853 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1854 {
1855         struct qlcnic_hardware_context *ahw = adapter->ahw;
1856         int err;
1857 
1858         /* Initialize interrupt coalesce parameters */
1859         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1860 
1861         if (qlcnic_83xx_check(adapter)) {
1862                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1863                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1864                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1865                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1866                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1867 
1868                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1869         } else {
1870                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1871                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1872                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1873 
1874                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1875         }
1876 
1877         return err;
1878 }
1879 
1880 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1881 {
1882         int ring;
1883         struct qlcnic_host_rds_ring *rds_ring;
1884 
1885         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1886                 return -EIO;
1887 
1888         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1889                 return 0;
1890 
1891         if (qlcnic_set_eswitch_port_config(adapter))
1892                 return -EIO;
1893 
1894         qlcnic_get_lro_mss_capability(adapter);
1895 
1896         if (qlcnic_fw_create_ctx(adapter))
1897                 return -EIO;
1898 
1899         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1900                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1901                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1902         }
1903 
1904         qlcnic_set_multi(netdev);
1905         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1906 
1907         adapter->ahw->linkup = 0;
1908 
1909         if (adapter->drv_sds_rings > 1)
1910                 qlcnic_config_rss(adapter, 1);
1911 
1912         qlcnic_config_def_intr_coalesce(adapter);
1913 
1914         if (netdev->features & NETIF_F_LRO)
1915                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1916 
1917         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1918         qlcnic_napi_enable(adapter);
1919 
1920         qlcnic_linkevent_request(adapter, 1);
1921 
1922         adapter->ahw->reset_context = 0;
1923         netif_tx_start_all_queues(netdev);
1924         return 0;
1925 }
1926 
1927 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1928 {
1929         int err = 0;
1930 
1931         rtnl_lock();
1932         if (netif_running(netdev))
1933                 err = __qlcnic_up(adapter, netdev);
1934         rtnl_unlock();
1935 
1936         return err;
1937 }
1938 
1939 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1940 {
1941         int ring;
1942 
1943         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1944                 return;
1945 
1946         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1947                 return;
1948 
1949         smp_mb();
1950         netif_carrier_off(netdev);
1951         adapter->ahw->linkup = 0;
1952         netif_tx_disable(netdev);
1953 
1954         qlcnic_free_mac_list(adapter);
1955 
1956         if (adapter->fhash.fnum)
1957                 qlcnic_delete_lb_filters(adapter);
1958 
1959         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1960         if (qlcnic_sriov_vf_check(adapter))
1961                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1962 
1963         qlcnic_napi_disable(adapter);
1964 
1965         qlcnic_fw_destroy_ctx(adapter);
1966         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1967 
1968         qlcnic_reset_rx_buffers_list(adapter);
1969 
1970         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1971                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1972 }
1973 
1974 /* Usage: During suspend and firmware recovery module */
1975 
1976 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1977 {
1978         rtnl_lock();
1979         if (netif_running(netdev))
1980                 __qlcnic_down(adapter, netdev);
1981         rtnl_unlock();
1982 
1983 }
1984 
1985 int
1986 qlcnic_attach(struct qlcnic_adapter *adapter)
1987 {
1988         struct net_device *netdev = adapter->netdev;
1989         struct pci_dev *pdev = adapter->pdev;
1990         int err;
1991 
1992         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1993                 return 0;
1994 
1995         err = qlcnic_napi_add(adapter, netdev);
1996         if (err)
1997                 return err;
1998 
1999         err = qlcnic_alloc_sw_resources(adapter);
2000         if (err) {
2001                 dev_err(&pdev->dev, "Error in setting sw resources\n");
2002                 goto err_out_napi_del;
2003         }
2004 
2005         err = qlcnic_alloc_hw_resources(adapter);
2006         if (err) {
2007                 dev_err(&pdev->dev, "Error in setting hw resources\n");
2008                 goto err_out_free_sw;
2009         }
2010 
2011         err = qlcnic_request_irq(adapter);
2012         if (err) {
2013                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2014                 goto err_out_free_hw;
2015         }
2016 
2017         qlcnic_create_sysfs_entries(adapter);
2018 
2019         if (qlcnic_encap_rx_offload(adapter))
2020                 udp_tunnel_get_rx_info(netdev);
2021 
2022         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2023         return 0;
2024 
2025 err_out_free_hw:
2026         qlcnic_free_hw_resources(adapter);
2027 err_out_free_sw:
2028         qlcnic_free_sw_resources(adapter);
2029 err_out_napi_del:
2030         qlcnic_napi_del(adapter);
2031         return err;
2032 }
2033 
2034 void qlcnic_detach(struct qlcnic_adapter *adapter)
2035 {
2036         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2037                 return;
2038 
2039         qlcnic_remove_sysfs_entries(adapter);
2040 
2041         qlcnic_free_hw_resources(adapter);
2042         qlcnic_release_rx_buffers(adapter);
2043         qlcnic_free_irq(adapter);
2044         qlcnic_napi_del(adapter);
2045         qlcnic_free_sw_resources(adapter);
2046 
2047         adapter->is_up = 0;
2048 }
2049 
2050 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2051 {
2052         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2053         struct qlcnic_host_sds_ring *sds_ring;
2054         int drv_tx_rings = adapter->drv_tx_rings;
2055         int ring;
2056 
2057         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2058         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2059                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2060                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2061                         qlcnic_disable_sds_intr(adapter, sds_ring);
2062                 }
2063         }
2064 
2065         qlcnic_fw_destroy_ctx(adapter);
2066 
2067         qlcnic_detach(adapter);
2068 
2069         adapter->ahw->diag_test = 0;
2070         adapter->drv_sds_rings = drv_sds_rings;
2071         adapter->drv_tx_rings = drv_tx_rings;
2072 
2073         if (qlcnic_attach(adapter))
2074                 goto out;
2075 
2076         if (netif_running(netdev))
2077                 __qlcnic_up(adapter, netdev);
2078 out:
2079         netif_device_attach(netdev);
2080 }
2081 
2082 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2083 {
2084         struct qlcnic_hardware_context *ahw = adapter->ahw;
2085         int err = 0;
2086 
2087         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2088                                 GFP_KERNEL);
2089         if (!adapter->recv_ctx) {
2090                 err = -ENOMEM;
2091                 goto err_out;
2092         }
2093 
2094         if (qlcnic_83xx_check(adapter)) {
2095                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2096                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2097                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2098                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2099                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2100         } else {
2101                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2102                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2103                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2104         }
2105 
2106         /* clear stats */
2107         memset(&adapter->stats, 0, sizeof(adapter->stats));
2108 err_out:
2109         return err;
2110 }
2111 
2112 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2113 {
2114         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2115 
2116         kfree(adapter->recv_ctx);
2117         adapter->recv_ctx = NULL;
2118 
2119         if (fw_dump->tmpl_hdr) {
2120                 vfree(fw_dump->tmpl_hdr);
2121                 fw_dump->tmpl_hdr = NULL;
2122         }
2123 
2124         if (fw_dump->dma_buffer) {
2125                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2126                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2127                 fw_dump->dma_buffer = NULL;
2128         }
2129 
2130         kfree(adapter->ahw->reset.buff);
2131         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2132 }
2133 
2134 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2135 {
2136         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2137         struct qlcnic_host_sds_ring *sds_ring;
2138         struct qlcnic_host_rds_ring *rds_ring;
2139         int ring;
2140         int ret;
2141 
2142         netif_device_detach(netdev);
2143 
2144         if (netif_running(netdev))
2145                 __qlcnic_down(adapter, netdev);
2146 
2147         qlcnic_detach(adapter);
2148 
2149         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2150         adapter->ahw->diag_test = test;
2151         adapter->ahw->linkup = 0;
2152 
2153         ret = qlcnic_attach(adapter);
2154         if (ret) {
2155                 netif_device_attach(netdev);
2156                 return ret;
2157         }
2158 
2159         ret = qlcnic_fw_create_ctx(adapter);
2160         if (ret) {
2161                 qlcnic_detach(adapter);
2162                 netif_device_attach(netdev);
2163                 return ret;
2164         }
2165 
2166         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2167                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2168                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2169         }
2170 
2171         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2172                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2173                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2174                         qlcnic_enable_sds_intr(adapter, sds_ring);
2175                 }
2176         }
2177 
2178         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2179                 adapter->ahw->loopback_state = 0;
2180                 qlcnic_linkevent_request(adapter, 1);
2181         }
2182 
2183         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2184 
2185         return 0;
2186 }
2187 
2188 /* Reset context in hardware only */
2189 static int
2190 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2191 {
2192         struct net_device *netdev = adapter->netdev;
2193 
2194         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2195                 return -EBUSY;
2196 
2197         netif_device_detach(netdev);
2198 
2199         qlcnic_down(adapter, netdev);
2200 
2201         qlcnic_up(adapter, netdev);
2202 
2203         netif_device_attach(netdev);
2204 
2205         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2206         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2207         return 0;
2208 }
2209 
2210 int
2211 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2212 {
2213         int err = 0;
2214         struct net_device *netdev = adapter->netdev;
2215 
2216         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2217                 return -EBUSY;
2218 
2219         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2220 
2221                 netif_device_detach(netdev);
2222 
2223                 if (netif_running(netdev))
2224                         __qlcnic_down(adapter, netdev);
2225 
2226                 qlcnic_detach(adapter);
2227 
2228                 if (netif_running(netdev)) {
2229                         err = qlcnic_attach(adapter);
2230                         if (!err) {
2231                                 __qlcnic_up(adapter, netdev);
2232                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2233                         }
2234                 }
2235 
2236                 netif_device_attach(netdev);
2237         }
2238 
2239         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2240         return err;
2241 }
2242 
2243 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2244 {
2245         struct qlcnic_hardware_context *ahw = adapter->ahw;
2246         u16 act_pci_fn = ahw->total_nic_func;
2247         u16 count;
2248 
2249         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2250         if (act_pci_fn <= 2)
2251                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2252                          act_pci_fn;
2253         else
2254                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2255                          act_pci_fn;
2256         ahw->max_uc_count = count;
2257 }
2258 
2259 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2260                                       u8 tx_queues, u8 rx_queues)
2261 {
2262         struct net_device *netdev = adapter->netdev;
2263         int err = 0;
2264 
2265         if (tx_queues) {
2266                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2267                 if (err) {
2268                         netdev_err(netdev, "failed to set %d Tx queues\n",
2269                                    tx_queues);
2270                         return err;
2271                 }
2272         }
2273 
2274         if (rx_queues) {
2275                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2276                 if (err)
2277                         netdev_err(netdev, "failed to set %d Rx queues\n",
2278                                    rx_queues);
2279         }
2280 
2281         return err;
2282 }
2283 
2284 int
2285 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2286                     int pci_using_dac)
2287 {
2288         int err;
2289         struct pci_dev *pdev = adapter->pdev;
2290 
2291         adapter->rx_csum = 1;
2292         adapter->ahw->mc_enabled = 0;
2293         qlcnic_set_mac_filter_count(adapter);
2294 
2295         netdev->netdev_ops         = &qlcnic_netdev_ops;
2296         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2297 
2298         qlcnic_change_mtu(netdev, netdev->mtu);
2299 
2300         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2301                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2302 
2303         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2304                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2305                              NETIF_F_HW_VLAN_CTAG_RX);
2306         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2307                                   NETIF_F_IPV6_CSUM);
2308 
2309         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2310                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2311                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2312         }
2313 
2314         if (pci_using_dac) {
2315                 netdev->features |= NETIF_F_HIGHDMA;
2316                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2317         }
2318 
2319         if (qlcnic_vlan_tx_check(adapter))
2320                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2321 
2322         if (qlcnic_sriov_vf_check(adapter))
2323                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2324 
2325         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2326                 netdev->features |= NETIF_F_LRO;
2327 
2328         if (qlcnic_encap_tx_offload(adapter)) {
2329                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2330 
2331                 /* encapsulation Tx offload supported by Adapter */
2332                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2333                                           NETIF_F_GSO_UDP_TUNNEL |
2334                                           NETIF_F_TSO            |
2335                                           NETIF_F_TSO6;
2336         }
2337 
2338         if (qlcnic_encap_rx_offload(adapter))
2339                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2340 
2341         netdev->hw_features = netdev->features;
2342         netdev->priv_flags |= IFF_UNICAST_FLT;
2343         netdev->irq = adapter->msix_entries[0].vector;
2344 
2345         /* MTU range: 68 - 9600 */
2346         netdev->min_mtu = P3P_MIN_MTU;
2347         netdev->max_mtu = P3P_MAX_MTU;
2348 
2349         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2350                                          adapter->drv_sds_rings);
2351         if (err)
2352                 return err;
2353 
2354         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2355 
2356         err = register_netdev(netdev);
2357         if (err) {
2358                 dev_err(&pdev->dev, "failed to register net device\n");
2359                 return err;
2360         }
2361 
2362         return 0;
2363 }
2364 
2365 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2366 {
2367         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2368                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2369                 *pci_using_dac = 1;
2370         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2371                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2372                 *pci_using_dac = 0;
2373         else {
2374                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2375                 return -EIO;
2376         }
2377 
2378         return 0;
2379 }
2380 
2381 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2382 {
2383         int ring;
2384         struct qlcnic_host_tx_ring *tx_ring;
2385 
2386         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2387                 tx_ring = &adapter->tx_ring[ring];
2388                 if (tx_ring) {
2389                         vfree(tx_ring->cmd_buf_arr);
2390                         tx_ring->cmd_buf_arr = NULL;
2391                 }
2392         }
2393         kfree(adapter->tx_ring);
2394 }
2395 
2396 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2397                           struct net_device *netdev)
2398 {
2399         int ring, vector, index;
2400         struct qlcnic_host_tx_ring *tx_ring;
2401         struct qlcnic_cmd_buffer *cmd_buf_arr;
2402 
2403         tx_ring = kcalloc(adapter->drv_tx_rings,
2404                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2405         if (tx_ring == NULL)
2406                 return -ENOMEM;
2407 
2408         adapter->tx_ring = tx_ring;
2409 
2410         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2411                 tx_ring = &adapter->tx_ring[ring];
2412                 tx_ring->num_desc = adapter->num_txd;
2413                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2414                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2415                 if (cmd_buf_arr == NULL) {
2416                         qlcnic_free_tx_rings(adapter);
2417                         return -ENOMEM;
2418                 }
2419                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2420                 spin_lock_init(&tx_ring->tx_clean_lock);
2421         }
2422 
2423         if (qlcnic_83xx_check(adapter) ||
2424             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2425                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2426                         tx_ring = &adapter->tx_ring[ring];
2427                         tx_ring->adapter = adapter;
2428                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2429                                 index = adapter->drv_sds_rings + ring;
2430                                 vector = adapter->msix_entries[index].vector;
2431                                 tx_ring->irq = vector;
2432                         }
2433                 }
2434         }
2435 
2436         return 0;
2437 }
2438 
2439 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2440 {
2441         struct qlcnic_hardware_context *ahw = adapter->ahw;
2442         u32 fw_cmd = 0;
2443 
2444         if (qlcnic_82xx_check(adapter))
2445                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2446         else if (qlcnic_83xx_check(adapter))
2447                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2448 
2449         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2450                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2451 }
2452 
2453 /* Reset firmware API lock */
2454 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2455 {
2456         qlcnic_api_lock(adapter);
2457         qlcnic_api_unlock(adapter);
2458 }
2459 
2460 
2461 static int
2462 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2463 {
2464         struct net_device *netdev = NULL;
2465         struct qlcnic_adapter *adapter = NULL;
2466         struct qlcnic_hardware_context *ahw;
2467         int err, pci_using_dac = -1;
2468         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2469 
2470         err = pci_enable_device(pdev);
2471         if (err)
2472                 return err;
2473 
2474         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2475                 err = -ENODEV;
2476                 goto err_out_disable_pdev;
2477         }
2478 
2479         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2480         if (err)
2481                 goto err_out_disable_pdev;
2482 
2483         err = pci_request_regions(pdev, qlcnic_driver_name);
2484         if (err)
2485                 goto err_out_disable_pdev;
2486 
2487         pci_set_master(pdev);
2488         pci_enable_pcie_error_reporting(pdev);
2489 
2490         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2491         if (!ahw) {
2492                 err = -ENOMEM;
2493                 goto err_out_free_res;
2494         }
2495 
2496         switch (ent->device) {
2497         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2498                 ahw->hw_ops = &qlcnic_hw_ops;
2499                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2500                 break;
2501         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2502         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2503         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2504                 qlcnic_83xx_register_map(ahw);
2505                 break;
2506         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2507         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2508         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2509                 qlcnic_sriov_vf_register_map(ahw);
2510                 break;
2511         default:
2512                 goto err_out_free_hw_res;
2513         }
2514 
2515         err = qlcnic_setup_pci_map(pdev, ahw);
2516         if (err)
2517                 goto err_out_free_hw_res;
2518 
2519         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2520                                    QLCNIC_MAX_TX_RINGS);
2521         if (!netdev) {
2522                 err = -ENOMEM;
2523                 goto err_out_iounmap;
2524         }
2525 
2526         SET_NETDEV_DEV(netdev, &pdev->dev);
2527 
2528         adapter = netdev_priv(netdev);
2529         adapter->netdev  = netdev;
2530         adapter->pdev    = pdev;
2531         adapter->ahw = ahw;
2532 
2533         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2534         if (adapter->qlcnic_wq == NULL) {
2535                 err = -ENOMEM;
2536                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2537                 goto err_out_free_netdev;
2538         }
2539 
2540         err = qlcnic_alloc_adapter_resources(adapter);
2541         if (err)
2542                 goto err_out_free_wq;
2543 
2544         adapter->dev_rst_time = jiffies;
2545         ahw->revision_id = pdev->revision;
2546         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2547         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2548                 adapter->fdb_mac_learn = true;
2549         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2550                 adapter->drv_mac_learn = true;
2551 
2552         rwlock_init(&adapter->ahw->crb_lock);
2553         mutex_init(&adapter->ahw->mem_lock);
2554 
2555         INIT_LIST_HEAD(&adapter->mac_list);
2556 
2557         qlcnic_register_dcb(adapter);
2558 
2559         if (qlcnic_82xx_check(adapter)) {
2560                 qlcnic_check_vf(adapter, ent);
2561                 adapter->portnum = adapter->ahw->pci_func;
2562                 qlcnic_reset_api_lock(adapter);
2563                 err = qlcnic_start_firmware(adapter);
2564                 if (err) {
2565                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2566                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2567                         goto err_out_maintenance_mode;
2568                 }
2569 
2570                 /* compute and set default and max tx/sds rings */
2571                 if (adapter->ahw->msix_supported) {
2572                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2573                                 qlcnic_set_tx_ring_count(adapter,
2574                                                          QLCNIC_SINGLE_RING);
2575                         else
2576                                 qlcnic_set_tx_ring_count(adapter,
2577                                                          QLCNIC_DEF_TX_RINGS);
2578                         qlcnic_set_sds_ring_count(adapter,
2579                                                   QLCNIC_DEF_SDS_RINGS);
2580                 } else {
2581                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2582                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2583                 }
2584 
2585                 err = qlcnic_setup_idc_param(adapter);
2586                 if (err)
2587                         goto err_out_free_hw;
2588 
2589                 adapter->flags |= QLCNIC_NEED_FLR;
2590 
2591         } else if (qlcnic_83xx_check(adapter)) {
2592                 qlcnic_83xx_check_vf(adapter, ent);
2593                 adapter->portnum = adapter->ahw->pci_func;
2594                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2595                 if (err) {
2596                         switch (err) {
2597                         case -ENOTRECOVERABLE:
2598                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2599                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2600                                 goto err_out_free_hw;
2601                         case -ENOMEM:
2602                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2603                                 goto err_out_free_hw;
2604                         case -EOPNOTSUPP:
2605                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2606                                 goto err_out_free_hw;
2607                         default:
2608                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2609                                 goto err_out_maintenance_mode;
2610                         }
2611                 }
2612 
2613                 if (qlcnic_sriov_vf_check(adapter))
2614                         return 0;
2615         } else {
2616                 dev_err(&pdev->dev,
2617                         "%s: failed. Please Reboot\n", __func__);
2618                 err = -ENODEV;
2619                 goto err_out_free_hw;
2620         }
2621 
2622         if (qlcnic_read_mac_addr(adapter))
2623                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2624 
2625         qlcnic_read_phys_port_id(adapter);
2626 
2627         if (adapter->portnum == 0) {
2628                 qlcnic_get_board_name(adapter, board_name);
2629 
2630                 pr_info("%s: %s Board Chip rev 0x%x\n",
2631                         module_name(THIS_MODULE),
2632                         board_name, adapter->ahw->revision_id);
2633         }
2634 
2635         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2636             !!qlcnic_use_msi)
2637                 dev_warn(&pdev->dev,
2638                          "Device does not support MSI interrupts\n");
2639 
2640         if (qlcnic_82xx_check(adapter)) {
2641                 qlcnic_dcb_enable(adapter->dcb);
2642                 qlcnic_dcb_get_info(adapter->dcb);
2643                 err = qlcnic_setup_intr(adapter);
2644 
2645                 if (err) {
2646                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2647                         goto err_out_disable_msi;
2648                 }
2649         }
2650 
2651         err = qlcnic_get_act_pci_func(adapter);
2652         if (err)
2653                 goto err_out_disable_mbx_intr;
2654 
2655         if (adapter->portnum == 0)
2656                 qlcnic_set_drv_version(adapter);
2657 
2658         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2659         if (err)
2660                 goto err_out_disable_mbx_intr;
2661 
2662         pci_set_drvdata(pdev, adapter);
2663 
2664         if (qlcnic_82xx_check(adapter))
2665                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2666                                      FW_POLL_DELAY);
2667 
2668         switch (adapter->ahw->port_type) {
2669         case QLCNIC_GBE:
2670                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2671                                 adapter->netdev->name);
2672                 break;
2673         case QLCNIC_XGBE:
2674                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2675                                 adapter->netdev->name);
2676                 break;
2677         }
2678 
2679         if (adapter->drv_mac_learn)
2680                 qlcnic_alloc_lb_filters_mem(adapter);
2681 
2682         qlcnic_add_sysfs(adapter);
2683         qlcnic_register_hwmon_dev(adapter);
2684         return 0;
2685 
2686 err_out_disable_mbx_intr:
2687         if (qlcnic_83xx_check(adapter))
2688                 qlcnic_83xx_free_mbx_intr(adapter);
2689 
2690 err_out_disable_msi:
2691         qlcnic_teardown_intr(adapter);
2692         qlcnic_cancel_idc_work(adapter);
2693         qlcnic_clr_all_drv_state(adapter, 0);
2694 
2695 err_out_free_hw:
2696         qlcnic_free_adapter_resources(adapter);
2697 
2698 err_out_free_wq:
2699         destroy_workqueue(adapter->qlcnic_wq);
2700 
2701 err_out_free_netdev:
2702         free_netdev(netdev);
2703 
2704 err_out_iounmap:
2705         qlcnic_cleanup_pci_map(ahw);
2706 
2707 err_out_free_hw_res:
2708         kfree(ahw);
2709 
2710 err_out_free_res:
2711         pci_release_regions(pdev);
2712 
2713 err_out_disable_pdev:
2714         pci_disable_device(pdev);
2715         return err;
2716 
2717 err_out_maintenance_mode:
2718         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2719         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2720         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2721         ahw->port_type = QLCNIC_XGBE;
2722 
2723         if (qlcnic_83xx_check(adapter))
2724                 adapter->tgt_status_reg = NULL;
2725         else
2726                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2727 
2728         err = register_netdev(netdev);
2729 
2730         if (err) {
2731                 dev_err(&pdev->dev, "Failed to register net device\n");
2732                 qlcnic_clr_all_drv_state(adapter, 0);
2733                 goto err_out_free_hw;
2734         }
2735 
2736         pci_set_drvdata(pdev, adapter);
2737         qlcnic_add_sysfs(adapter);
2738 
2739         return 0;
2740 }
2741 
2742 static void qlcnic_remove(struct pci_dev *pdev)
2743 {
2744         struct qlcnic_adapter *adapter;
2745         struct net_device *netdev;
2746         struct qlcnic_hardware_context *ahw;
2747 
2748         adapter = pci_get_drvdata(pdev);
2749         if (adapter == NULL)
2750                 return;
2751 
2752         netdev = adapter->netdev;
2753 
2754         qlcnic_cancel_idc_work(adapter);
2755         qlcnic_sriov_pf_disable(adapter);
2756         ahw = adapter->ahw;
2757 
2758         unregister_netdev(netdev);
2759         qlcnic_sriov_cleanup(adapter);
2760 
2761         if (qlcnic_83xx_check(adapter)) {
2762                 qlcnic_83xx_initialize_nic(adapter, 0);
2763                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2764                 qlcnic_83xx_free_mbx_intr(adapter);
2765                 qlcnic_83xx_detach_mailbox_work(adapter);
2766                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2767                 kfree(ahw->fw_info);
2768         }
2769 
2770         qlcnic_dcb_free(adapter->dcb);
2771         qlcnic_detach(adapter);
2772         kfree(adapter->npars);
2773         kfree(adapter->eswitch);
2774 
2775         if (qlcnic_82xx_check(adapter))
2776                 qlcnic_clr_all_drv_state(adapter, 0);
2777 
2778         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2779 
2780         qlcnic_free_lb_filters_mem(adapter);
2781 
2782         qlcnic_teardown_intr(adapter);
2783 
2784         qlcnic_remove_sysfs(adapter);
2785 
2786         qlcnic_unregister_hwmon_dev(adapter);
2787 
2788         qlcnic_cleanup_pci_map(adapter->ahw);
2789 
2790         qlcnic_release_firmware(adapter);
2791 
2792         pci_disable_pcie_error_reporting(pdev);
2793         pci_release_regions(pdev);
2794         pci_disable_device(pdev);
2795 
2796         if (adapter->qlcnic_wq) {
2797                 destroy_workqueue(adapter->qlcnic_wq);
2798                 adapter->qlcnic_wq = NULL;
2799         }
2800 
2801         qlcnic_free_adapter_resources(adapter);
2802         kfree(ahw);
2803         free_netdev(netdev);
2804 }
2805 
2806 static void qlcnic_shutdown(struct pci_dev *pdev)
2807 {
2808         if (__qlcnic_shutdown(pdev))
2809                 return;
2810 
2811         pci_disable_device(pdev);
2812 }
2813 
2814 #ifdef CONFIG_PM
2815 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2816 {
2817         int retval;
2818 
2819         retval = __qlcnic_shutdown(pdev);
2820         if (retval)
2821                 return retval;
2822 
2823         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2824         return 0;
2825 }
2826 
2827 static int qlcnic_resume(struct pci_dev *pdev)
2828 {
2829         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2830         int err;
2831 
2832         err = pci_enable_device(pdev);
2833         if (err)
2834                 return err;
2835 
2836         pci_set_power_state(pdev, PCI_D0);
2837         pci_set_master(pdev);
2838         pci_restore_state(pdev);
2839 
2840         return  __qlcnic_resume(adapter);
2841 }
2842 #endif
2843 
2844 static int qlcnic_open(struct net_device *netdev)
2845 {
2846         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2847         int err;
2848 
2849         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2850                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2851                            __func__);
2852 
2853                 return -EIO;
2854         }
2855 
2856         netif_carrier_off(netdev);
2857 
2858         err = qlcnic_attach(adapter);
2859         if (err)
2860                 return err;
2861 
2862         err = __qlcnic_up(adapter, netdev);
2863         if (err)
2864                 qlcnic_detach(adapter);
2865 
2866         return err;
2867 }
2868 
2869 /*
2870  * qlcnic_close - Disables a network interface entry point
2871  */
2872 static int qlcnic_close(struct net_device *netdev)
2873 {
2874         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2875 
2876         __qlcnic_down(adapter, netdev);
2877 
2878         return 0;
2879 }
2880 
2881 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2882 
2883 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2884 {
2885         void *head;
2886         int i;
2887         struct net_device *netdev = adapter->netdev;
2888         u32 filter_size = 0;
2889         u16 act_pci_func = 0;
2890 
2891         if (adapter->fhash.fmax && adapter->fhash.fhead)
2892                 return;
2893 
2894         act_pci_func = adapter->ahw->total_nic_func;
2895         spin_lock_init(&adapter->mac_learn_lock);
2896         spin_lock_init(&adapter->rx_mac_learn_lock);
2897 
2898         if (qlcnic_sriov_vf_check(adapter)) {
2899                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2900                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2901         } else if (qlcnic_82xx_check(adapter)) {
2902                 filter_size = QLCNIC_LB_MAX_FILTERS;
2903                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2904         } else {
2905                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2906                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2907         }
2908 
2909         head = kcalloc(adapter->fhash.fbucket_size,
2910                        sizeof(struct hlist_head), GFP_ATOMIC);
2911 
2912         if (!head)
2913                 return;
2914 
2915         adapter->fhash.fmax = (filter_size / act_pci_func);
2916         adapter->fhash.fhead = head;
2917 
2918         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2919                     act_pci_func, adapter->fhash.fmax);
2920 
2921         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2922                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2923 
2924         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2925 
2926         head = kcalloc(adapter->rx_fhash.fbucket_size,
2927                        sizeof(struct hlist_head), GFP_ATOMIC);
2928 
2929         if (!head)
2930                 return;
2931 
2932         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2933         adapter->rx_fhash.fhead = head;
2934 
2935         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2936                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2937 }
2938 
2939 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2940 {
2941         if (adapter->fhash.fmax)
2942                 kfree(adapter->fhash.fhead);
2943 
2944         adapter->fhash.fhead = NULL;
2945         adapter->fhash.fmax = 0;
2946 
2947         if (adapter->rx_fhash.fmax)
2948                 kfree(adapter->rx_fhash.fhead);
2949 
2950         adapter->rx_fhash.fmax = 0;
2951         adapter->rx_fhash.fhead = NULL;
2952 }
2953 
2954 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2955 {
2956         struct net_device *netdev = adapter->netdev;
2957         u32 temp_state, temp_val, temp = 0;
2958         int rv = 0;
2959 
2960         if (qlcnic_83xx_check(adapter))
2961                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2962 
2963         if (qlcnic_82xx_check(adapter))
2964                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2965 
2966         temp_state = qlcnic_get_temp_state(temp);
2967         temp_val = qlcnic_get_temp_val(temp);
2968 
2969         if (temp_state == QLCNIC_TEMP_PANIC) {
2970                 dev_err(&netdev->dev,
2971                        "Device temperature %d degrees C exceeds"
2972                        " maximum allowed. Hardware has been shut down.\n",
2973                        temp_val);
2974                 rv = 1;
2975         } else if (temp_state == QLCNIC_TEMP_WARN) {
2976                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2977                         dev_err(&netdev->dev,
2978                                "Device temperature %d degrees C "
2979                                "exceeds operating range."
2980                                " Immediate action needed.\n",
2981                                temp_val);
2982                 }
2983         } else {
2984                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2985                         dev_info(&netdev->dev,
2986                                "Device temperature is now %d degrees C"
2987                                " in normal range.\n", temp_val);
2988                 }
2989         }
2990         adapter->ahw->temp = temp_state;
2991         return rv;
2992 }
2993 
2994 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2995 {
2996         int i;
2997 
2998         for (i = 0; i < tx_ring->num_desc; i++) {
2999                 pr_info("TX Desc: %d\n", i);
3000                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3001                                &tx_ring->desc_head[i],
3002                                sizeof(struct cmd_desc_type0), true);
3003         }
3004 }
3005 
3006 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3007 {
3008         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3009         struct net_device *netdev = adapter->netdev;
3010         struct qlcnic_host_rds_ring *rds_ring;
3011         struct qlcnic_host_sds_ring *sds_ring;
3012         struct qlcnic_host_tx_ring *tx_ring;
3013         int ring;
3014 
3015         if (!netdev || !netif_running(netdev))
3016                 return;
3017 
3018         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3019                 rds_ring = &recv_ctx->rds_rings[ring];
3020                 if (!rds_ring)
3021                         continue;
3022                 netdev_info(netdev,
3023                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3024                              ring, readl(rds_ring->crb_rcv_producer),
3025                              rds_ring->producer, rds_ring->num_desc);
3026         }
3027 
3028         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3029                 sds_ring = &(recv_ctx->sds_rings[ring]);
3030                 if (!sds_ring)
3031                         continue;
3032                 netdev_info(netdev,
3033                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3034                             ring, readl(sds_ring->crb_sts_consumer),
3035                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3036                             sds_ring->num_desc);
3037         }
3038 
3039         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3040                 tx_ring = &adapter->tx_ring[ring];
3041                 if (!tx_ring)
3042                         continue;
3043                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3044                             ring, tx_ring->ctx_id);
3045                 netdev_info(netdev,
3046                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3047                             tx_ring->tx_stats.xmit_finished,
3048                             tx_ring->tx_stats.xmit_called,
3049                             tx_ring->tx_stats.xmit_on,
3050                             tx_ring->tx_stats.xmit_off);
3051 
3052                 if (tx_ring->crb_intr_mask)
3053                         netdev_info(netdev, "crb_intr_mask=%d\n",
3054                                     readl(tx_ring->crb_intr_mask));
3055 
3056                 netdev_info(netdev,
3057                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3058                             readl(tx_ring->crb_cmd_producer),
3059                             tx_ring->producer, tx_ring->sw_consumer,
3060                             le32_to_cpu(*(tx_ring->hw_consumer)));
3061 
3062                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3063                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3064 
3065                 if (netif_msg_tx_err(adapter->ahw))
3066                         dump_tx_ring_desc(tx_ring);
3067         }
3068 
3069 }
3070 
3071 static void qlcnic_tx_timeout(struct net_device *netdev)
3072 {
3073         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3074 
3075         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3076                 return;
3077 
3078         qlcnic_dump_rings(adapter);
3079 
3080         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3081             netif_msg_tx_err(adapter->ahw)) {
3082                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3083                 if (qlcnic_82xx_check(adapter))
3084                         adapter->need_fw_reset = 1;
3085                 else if (qlcnic_83xx_check(adapter))
3086                         qlcnic_83xx_idc_request_reset(adapter,
3087                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3088         } else {
3089                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3090                 adapter->ahw->reset_context = 1;
3091         }
3092 }
3093 
3094 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3095 {
3096         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3097         struct net_device_stats *stats = &netdev->stats;
3098 
3099         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3100                 qlcnic_update_stats(adapter);
3101 
3102         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3103         stats->tx_packets = adapter->stats.xmitfinished;
3104         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3105         stats->tx_bytes = adapter->stats.txbytes;
3106         stats->rx_dropped = adapter->stats.rxdropped;
3107         stats->tx_dropped = adapter->stats.txdropped;
3108 
3109         return stats;
3110 }
3111 
3112 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3113 {
3114         u32 status;
3115 
3116         status = readl(adapter->isr_int_vec);
3117 
3118         if (!(status & adapter->ahw->int_vec_bit))
3119                 return IRQ_NONE;
3120 
3121         /* check interrupt state machine, to be sure */
3122         status = readl(adapter->crb_int_state_reg);
3123         if (!ISR_LEGACY_INT_TRIGGERED(status))
3124                 return IRQ_NONE;
3125 
3126         writel(0xffffffff, adapter->tgt_status_reg);
3127         /* read twice to ensure write is flushed */
3128         readl(adapter->isr_int_vec);
3129         readl(adapter->isr_int_vec);
3130 
3131         return IRQ_HANDLED;
3132 }
3133 
3134 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3135 {
3136         struct qlcnic_host_sds_ring *sds_ring = data;
3137         struct qlcnic_adapter *adapter = sds_ring->adapter;
3138 
3139         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3140                 goto done;
3141         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3142                 writel(0xffffffff, adapter->tgt_status_reg);
3143                 goto done;
3144         }
3145 
3146         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3147                 return IRQ_NONE;
3148 
3149 done:
3150         adapter->ahw->diag_cnt++;
3151         qlcnic_enable_sds_intr(adapter, sds_ring);
3152         return IRQ_HANDLED;
3153 }
3154 
3155 static irqreturn_t qlcnic_intr(int irq, void *data)
3156 {
3157         struct qlcnic_host_sds_ring *sds_ring = data;
3158         struct qlcnic_adapter *adapter = sds_ring->adapter;
3159 
3160         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3161                 return IRQ_NONE;
3162 
3163         napi_schedule(&sds_ring->napi);
3164 
3165         return IRQ_HANDLED;
3166 }
3167 
3168 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3169 {
3170         struct qlcnic_host_sds_ring *sds_ring = data;
3171         struct qlcnic_adapter *adapter = sds_ring->adapter;
3172 
3173         /* clear interrupt */
3174         writel(0xffffffff, adapter->tgt_status_reg);
3175 
3176         napi_schedule(&sds_ring->napi);
3177         return IRQ_HANDLED;
3178 }
3179 
3180 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3181 {
3182         struct qlcnic_host_sds_ring *sds_ring = data;
3183 
3184         napi_schedule(&sds_ring->napi);
3185         return IRQ_HANDLED;
3186 }
3187 
3188 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3189 {
3190         struct qlcnic_host_tx_ring *tx_ring = data;
3191 
3192         napi_schedule(&tx_ring->napi);
3193         return IRQ_HANDLED;
3194 }
3195 
3196 static void
3197 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3198 {
3199         u32 val;
3200 
3201         val = adapter->portnum & 0xf;
3202         val |= encoding << 7;
3203         val |= (jiffies - adapter->dev_rst_time) << 8;
3204 
3205         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3206         adapter->dev_rst_time = jiffies;
3207 }
3208 
3209 static int
3210 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3211 {
3212         u32  val;
3213 
3214         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3215                         state != QLCNIC_DEV_NEED_QUISCENT);
3216 
3217         if (qlcnic_api_lock(adapter))
3218                 return -EIO;
3219 
3220         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3221 
3222         if (state == QLCNIC_DEV_NEED_RESET)
3223                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3224         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3225                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3226 
3227         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3228 
3229         qlcnic_api_unlock(adapter);
3230 
3231         return 0;
3232 }
3233 
3234 static int
3235 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3236 {
3237         u32  val;
3238 
3239         if (qlcnic_api_lock(adapter))
3240                 return -EBUSY;
3241 
3242         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3243         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3244         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3245 
3246         qlcnic_api_unlock(adapter);
3247 
3248         return 0;
3249 }
3250 
3251 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3252 {
3253         u32  val;
3254 
3255         if (qlcnic_api_lock(adapter))
3256                 goto err;
3257 
3258         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3259         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3260         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3261 
3262         if (failed) {
3263                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3264                                     QLCNIC_DEV_FAILED);
3265                 dev_info(&adapter->pdev->dev,
3266                                 "Device state set to Failed. Please Reboot\n");
3267         } else if (!(val & 0x11111111))
3268                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3269                                     QLCNIC_DEV_COLD);
3270 
3271         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3272         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3273         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3274 
3275         qlcnic_api_unlock(adapter);
3276 err:
3277         adapter->fw_fail_cnt = 0;
3278         adapter->flags &= ~QLCNIC_FW_HANG;
3279         clear_bit(__QLCNIC_START_FW, &adapter->state);
3280         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3281 }
3282 
3283 /* Grab api lock, before checking state */
3284 static int
3285 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3286 {
3287         int act, state, active_mask;
3288         struct qlcnic_hardware_context *ahw = adapter->ahw;
3289 
3290         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3291         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3292 
3293         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3294                 active_mask = (~(1 << (ahw->pci_func * 4)));
3295                 act = act & active_mask;
3296         }
3297 
3298         if (((state & 0x11111111) == (act & 0x11111111)) ||
3299                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3300                 return 0;
3301         else
3302                 return 1;
3303 }
3304 
3305 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3306 {
3307         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3308 
3309         if (val != QLCNIC_DRV_IDC_VER) {
3310                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3311                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3312         }
3313 
3314         return 0;
3315 }
3316 
3317 static int
3318 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3319 {
3320         u32 val, prev_state;
3321         u8 dev_init_timeo = adapter->dev_init_timeo;
3322         u8 portnum = adapter->portnum;
3323         u8 ret;
3324 
3325         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3326                 return 1;
3327 
3328         if (qlcnic_api_lock(adapter))
3329                 return -1;
3330 
3331         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3332         if (!(val & (1 << (portnum * 4)))) {
3333                 QLC_DEV_SET_REF_CNT(val, portnum);
3334                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3335         }
3336 
3337         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3338         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3339 
3340         switch (prev_state) {
3341         case QLCNIC_DEV_COLD:
3342                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3343                                     QLCNIC_DEV_INITIALIZING);
3344                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3345                                     QLCNIC_DRV_IDC_VER);
3346                 qlcnic_idc_debug_info(adapter, 0);
3347                 qlcnic_api_unlock(adapter);
3348                 return 1;
3349 
3350         case QLCNIC_DEV_READY:
3351                 ret = qlcnic_check_idc_ver(adapter);
3352                 qlcnic_api_unlock(adapter);
3353                 return ret;
3354 
3355         case QLCNIC_DEV_NEED_RESET:
3356                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3357                 QLC_DEV_SET_RST_RDY(val, portnum);
3358                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3359                 break;
3360 
3361         case QLCNIC_DEV_NEED_QUISCENT:
3362                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3363                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3364                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3365                 break;
3366 
3367         case QLCNIC_DEV_FAILED:
3368                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3369                 qlcnic_api_unlock(adapter);
3370                 return -1;
3371 
3372         case QLCNIC_DEV_INITIALIZING:
3373         case QLCNIC_DEV_QUISCENT:
3374                 break;
3375         }
3376 
3377         qlcnic_api_unlock(adapter);
3378 
3379         do {
3380                 msleep(1000);
3381                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3382 
3383                 if (prev_state == QLCNIC_DEV_QUISCENT)
3384                         continue;
3385         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3386 
3387         if (!dev_init_timeo) {
3388                 dev_err(&adapter->pdev->dev,
3389                         "Waiting for device to initialize timeout\n");
3390                 return -1;
3391         }
3392 
3393         if (qlcnic_api_lock(adapter))
3394                 return -1;
3395 
3396         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3397         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3398         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3399 
3400         ret = qlcnic_check_idc_ver(adapter);
3401         qlcnic_api_unlock(adapter);
3402 
3403         return ret;
3404 }
3405 
3406 static void
3407 qlcnic_fwinit_work(struct work_struct *work)
3408 {
3409         struct qlcnic_adapter *adapter = container_of(work,
3410                         struct qlcnic_adapter, fw_work.work);
3411         u32 dev_state = 0xf;
3412         u32 val;
3413 
3414         if (qlcnic_api_lock(adapter))
3415                 goto err_ret;
3416 
3417         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3418         if (dev_state == QLCNIC_DEV_QUISCENT ||
3419             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3420                 qlcnic_api_unlock(adapter);
3421                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3422                                                 FW_POLL_DELAY * 2);
3423                 return;
3424         }
3425 
3426         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3427                 qlcnic_api_unlock(adapter);
3428                 goto wait_npar;
3429         }
3430 
3431         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3432             dev_state == QLCNIC_DEV_READY) {
3433                 dev_info(&adapter->pdev->dev, "Detected state change from "
3434                                 "DEV_NEED_RESET, skipping ack check\n");
3435                 goto skip_ack_check;
3436         }
3437 
3438         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3439                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3440                                         adapter->reset_ack_timeo);
3441                 goto skip_ack_check;
3442         }
3443 
3444         if (!qlcnic_check_drv_state(adapter)) {
3445 skip_ack_check:
3446                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3447 
3448                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3449                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3450                                             QLCNIC_DEV_INITIALIZING);
3451                         set_bit(__QLCNIC_START_FW, &adapter->state);
3452                         QLCDB(adapter, DRV, "Restarting fw\n");
3453                         qlcnic_idc_debug_info(adapter, 0);
3454                         val = QLC_SHARED_REG_RD32(adapter,
3455                                                   QLCNIC_CRB_DRV_STATE);
3456                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3457                         QLC_SHARED_REG_WR32(adapter,
3458                                             QLCNIC_CRB_DRV_STATE, val);
3459                 }
3460 
3461                 qlcnic_api_unlock(adapter);
3462 
3463                 rtnl_lock();
3464                 if (qlcnic_check_fw_dump_state(adapter) &&
3465                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3466                         QLCDB(adapter, DRV, "Take FW dump\n");
3467                         qlcnic_dump_fw(adapter);
3468                         adapter->flags |= QLCNIC_FW_HANG;
3469                 }
3470                 rtnl_unlock();
3471 
3472                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3473                 if (!adapter->nic_ops->start_firmware(adapter)) {
3474                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3475                         adapter->fw_wait_cnt = 0;
3476                         return;
3477                 }
3478                 goto err_ret;
3479         }
3480 
3481         qlcnic_api_unlock(adapter);
3482 
3483 wait_npar:
3484         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3485         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3486 
3487         switch (dev_state) {
3488         case QLCNIC_DEV_READY:
3489                 if (!qlcnic_start_firmware(adapter)) {
3490                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3491                         adapter->fw_wait_cnt = 0;
3492                         return;
3493                 }
3494         case QLCNIC_DEV_FAILED:
3495                 break;
3496         default:
3497                 qlcnic_schedule_work(adapter,
3498                         qlcnic_fwinit_work, FW_POLL_DELAY);
3499                 return;
3500         }
3501 
3502 err_ret:
3503         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3504                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3505         netif_device_attach(adapter->netdev);
3506         qlcnic_clr_all_drv_state(adapter, 0);
3507 }
3508 
3509 static void
3510 qlcnic_detach_work(struct work_struct *work)
3511 {
3512         struct qlcnic_adapter *adapter = container_of(work,
3513                         struct qlcnic_adapter, fw_work.work);
3514         struct net_device *netdev = adapter->netdev;
3515         u32 status;
3516 
3517         netif_device_detach(netdev);
3518 
3519         /* Dont grab rtnl lock during Quiscent mode */
3520         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3521                 if (netif_running(netdev))
3522                         __qlcnic_down(adapter, netdev);
3523         } else
3524                 qlcnic_down(adapter, netdev);
3525 
3526         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3527 
3528         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3529                 dev_err(&adapter->pdev->dev,
3530                         "Detaching the device: peg halt status1=0x%x\n",
3531                                         status);
3532 
3533                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3534                         dev_err(&adapter->pdev->dev,
3535                         "On board active cooling fan failed. "
3536                                 "Device has been halted.\n");
3537                         dev_err(&adapter->pdev->dev,
3538                                 "Replace the adapter.\n");
3539                 }
3540 
3541                 goto err_ret;
3542         }
3543 
3544         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3545                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3546                         adapter->ahw->temp);
3547                 goto err_ret;
3548         }
3549 
3550         /* Dont ack if this instance is the reset owner */
3551         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3552                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3553                         dev_err(&adapter->pdev->dev,
3554                                 "Failed to set driver state,"
3555                                         "detaching the device.\n");
3556                         goto err_ret;
3557                 }
3558         }
3559 
3560         adapter->fw_wait_cnt = 0;
3561 
3562         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3563 
3564         return;
3565 
3566 err_ret:
3567         netif_device_attach(netdev);
3568         qlcnic_clr_all_drv_state(adapter, 1);
3569 }
3570 
3571 /*Transit NPAR state to NON Operational */
3572 static void
3573 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3574 {
3575         u32 state;
3576 
3577         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3578         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3579                 return;
3580 
3581         if (qlcnic_api_lock(adapter))
3582                 return;
3583         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3584                             QLCNIC_DEV_NPAR_NON_OPER);
3585         qlcnic_api_unlock(adapter);
3586 }
3587 
3588 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3589                                           u32 key)
3590 {
3591         u32 state, xg_val = 0, gb_val = 0;
3592 
3593         qlcnic_xg_set_xg0_mask(xg_val);
3594         qlcnic_xg_set_xg1_mask(xg_val);
3595         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3596         qlcnic_gb_set_gb0_mask(gb_val);
3597         qlcnic_gb_set_gb1_mask(gb_val);
3598         qlcnic_gb_set_gb2_mask(gb_val);
3599         qlcnic_gb_set_gb3_mask(gb_val);
3600         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3601         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3602                                 " on all ports\n");
3603         adapter->need_fw_reset = 1;
3604 
3605         if (qlcnic_api_lock(adapter))
3606                 return;
3607 
3608         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3609 
3610         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3611                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3612                            __func__);
3613                 qlcnic_api_unlock(adapter);
3614 
3615                 return;
3616         }
3617 
3618         if (state == QLCNIC_DEV_READY) {
3619                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3620                                     QLCNIC_DEV_NEED_RESET);
3621                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3622                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3623                 qlcnic_idc_debug_info(adapter, 0);
3624         }
3625 
3626         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3627                             QLCNIC_DEV_NPAR_NON_OPER);
3628         qlcnic_api_unlock(adapter);
3629 }
3630 
3631 /* Transit to NPAR READY state from NPAR NOT READY state */
3632 static void
3633 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3634 {
3635         if (qlcnic_api_lock(adapter))
3636                 return;
3637 
3638         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3639                             QLCNIC_DEV_NPAR_OPER);
3640         QLCDB(adapter, DRV, "NPAR operational state set\n");
3641 
3642         qlcnic_api_unlock(adapter);
3643 }
3644 
3645 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3646                           work_func_t func, int delay)
3647 {
3648         if (test_bit(__QLCNIC_AER, &adapter->state))
3649                 return;
3650 
3651         INIT_DELAYED_WORK(&adapter->fw_work, func);
3652         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3653                            round_jiffies_relative(delay));
3654 }
3655 
3656 static void
3657 qlcnic_attach_work(struct work_struct *work)
3658 {
3659         struct qlcnic_adapter *adapter = container_of(work,
3660                                 struct qlcnic_adapter, fw_work.work);
3661         struct net_device *netdev = adapter->netdev;
3662         u32 npar_state;
3663 
3664         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3665                 npar_state = QLC_SHARED_REG_RD32(adapter,
3666                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3667                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3668                         qlcnic_clr_all_drv_state(adapter, 0);
3669                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3670                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3671                                                         FW_POLL_DELAY);
3672                 else
3673                         goto attach;
3674                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3675                 return;
3676         }
3677 attach:
3678         qlcnic_dcb_get_info(adapter->dcb);
3679 
3680         if (netif_running(netdev)) {
3681                 if (qlcnic_up(adapter, netdev))
3682                         goto done;
3683 
3684                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3685         }
3686 
3687 done:
3688         netif_device_attach(netdev);
3689         adapter->fw_fail_cnt = 0;
3690         adapter->flags &= ~QLCNIC_FW_HANG;
3691         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3692         if (adapter->portnum == 0)
3693                 qlcnic_set_drv_version(adapter);
3694 
3695         if (!qlcnic_clr_drv_state(adapter))
3696                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3697                                                         FW_POLL_DELAY);
3698 }
3699 
3700 static int
3701 qlcnic_check_health(struct qlcnic_adapter *adapter)
3702 {
3703         struct qlcnic_hardware_context *ahw = adapter->ahw;
3704         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3705         u32 state = 0, heartbeat;
3706         u32 peg_status;
3707         int err = 0;
3708 
3709         if (qlcnic_check_temp(adapter))
3710                 goto detach;
3711 
3712         if (adapter->need_fw_reset)
3713                 qlcnic_dev_request_reset(adapter, 0);
3714 
3715         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3716         if (state == QLCNIC_DEV_NEED_RESET) {
3717                 qlcnic_set_npar_non_operational(adapter);
3718                 adapter->need_fw_reset = 1;
3719         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3720                 goto detach;
3721 
3722         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3723         if (heartbeat != adapter->heartbeat) {
3724                 adapter->heartbeat = heartbeat;
3725                 adapter->fw_fail_cnt = 0;
3726                 if (adapter->need_fw_reset)
3727                         goto detach;
3728 
3729                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3730                         qlcnic_reset_hw_context(adapter);
3731 
3732                 return 0;
3733         }
3734 
3735         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3736                 return 0;
3737 
3738         adapter->flags |= QLCNIC_FW_HANG;
3739 
3740         qlcnic_dev_request_reset(adapter, 0);
3741 
3742         if (qlcnic_auto_fw_reset)
3743                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3744 
3745         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3746         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3747         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3748                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3749                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3750                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3751                         "PEG_NET_4_PC: 0x%x\n",
3752                         peg_status,
3753                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3754                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3755                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3756                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3757                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3758                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3759         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3760                 dev_err(&adapter->pdev->dev,
3761                         "Firmware aborted with error code 0x00006700. "
3762                                 "Device is being reset.\n");
3763 detach:
3764         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3765                 QLCNIC_DEV_NEED_RESET;
3766 
3767         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3768                                                       &adapter->state)) {
3769 
3770                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3771                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3772         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3773                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3774                 qlcnic_dump_fw(adapter);
3775         }
3776 
3777         return 1;
3778 }
3779 
3780 void qlcnic_fw_poll_work(struct work_struct *work)
3781 {
3782         struct qlcnic_adapter *adapter = container_of(work,
3783                                 struct qlcnic_adapter, fw_work.work);
3784 
3785         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3786                 goto reschedule;
3787 
3788 
3789         if (qlcnic_check_health(adapter))
3790                 return;
3791 
3792         if (adapter->fhash.fnum)
3793                 qlcnic_prune_lb_filters(adapter);
3794 
3795 reschedule:
3796         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3797 }
3798 
3799 static int qlcnic_is_first_func(struct pci_dev *pdev)
3800 {
3801         struct pci_dev *oth_pdev;
3802         int val = pdev->devfn;
3803 
3804         while (val-- > 0) {
3805                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3806                         (pdev->bus), pdev->bus->number,
3807                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3808                 if (!oth_pdev)
3809                         continue;
3810 
3811                 if (oth_pdev->current_state != PCI_D3cold) {
3812                         pci_dev_put(oth_pdev);
3813                         return 0;
3814                 }
3815                 pci_dev_put(oth_pdev);
3816         }
3817         return 1;
3818 }
3819 
3820 static int qlcnic_attach_func(struct pci_dev *pdev)
3821 {
3822         int err, first_func;
3823         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3824         struct net_device *netdev = adapter->netdev;
3825 
3826         pdev->error_state = pci_channel_io_normal;
3827 
3828         err = pci_enable_device(pdev);
3829         if (err)
3830                 return err;
3831 
3832         pci_set_master(pdev);
3833         pci_restore_state(pdev);
3834 
3835         first_func = qlcnic_is_first_func(pdev);
3836 
3837         if (qlcnic_api_lock(adapter))
3838                 return -EINVAL;
3839 
3840         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3841                 adapter->need_fw_reset = 1;
3842                 set_bit(__QLCNIC_START_FW, &adapter->state);
3843                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3844                                     QLCNIC_DEV_INITIALIZING);
3845                 QLCDB(adapter, DRV, "Restarting fw\n");
3846         }
3847         qlcnic_api_unlock(adapter);
3848 
3849         err = qlcnic_start_firmware(adapter);
3850         if (err)
3851                 return err;
3852 
3853         qlcnic_clr_drv_state(adapter);
3854         kfree(adapter->msix_entries);
3855         adapter->msix_entries = NULL;
3856         err = qlcnic_setup_intr(adapter);
3857 
3858         if (err) {
3859                 kfree(adapter->msix_entries);
3860                 netdev_err(netdev, "failed to setup interrupt\n");
3861                 return err;
3862         }
3863 
3864         if (netif_running(netdev)) {
3865                 err = qlcnic_attach(adapter);
3866                 if (err) {
3867                         qlcnic_clr_all_drv_state(adapter, 1);
3868                         clear_bit(__QLCNIC_AER, &adapter->state);
3869                         netif_device_attach(netdev);
3870                         return err;
3871                 }
3872 
3873                 err = qlcnic_up(adapter, netdev);
3874                 if (err)
3875                         goto done;
3876 
3877                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3878         }
3879  done:
3880         netif_device_attach(netdev);
3881         return err;
3882 }
3883 
3884 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3885                                                       pci_channel_state_t state)
3886 {
3887         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3888         struct net_device *netdev = adapter->netdev;
3889 
3890         if (state == pci_channel_io_perm_failure)
3891                 return PCI_ERS_RESULT_DISCONNECT;
3892 
3893         if (state == pci_channel_io_normal)
3894                 return PCI_ERS_RESULT_RECOVERED;
3895 
3896         set_bit(__QLCNIC_AER, &adapter->state);
3897         netif_device_detach(netdev);
3898 
3899         cancel_delayed_work_sync(&adapter->fw_work);
3900 
3901         if (netif_running(netdev))
3902                 qlcnic_down(adapter, netdev);
3903 
3904         qlcnic_detach(adapter);
3905         qlcnic_teardown_intr(adapter);
3906 
3907         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3908 
3909         pci_save_state(pdev);
3910         pci_disable_device(pdev);
3911 
3912         return PCI_ERS_RESULT_NEED_RESET;
3913 }
3914 
3915 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3916 {
3917         pci_ers_result_t res;
3918 
3919         rtnl_lock();
3920         res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3921                                          PCI_ERS_RESULT_RECOVERED;
3922         rtnl_unlock();
3923 
3924         return res;
3925 }
3926 
3927 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3928 {
3929         u32 state;
3930         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3931 
3932         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3933         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3934                                                             &adapter->state))
3935                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3936                                      FW_POLL_DELAY);
3937 }
3938 
3939 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3940                                                  pci_channel_state_t state)
3941 {
3942         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3943         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3944 
3945         if (hw_ops->io_error_detected) {
3946                 return hw_ops->io_error_detected(pdev, state);
3947         } else {
3948                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3949                 return PCI_ERS_RESULT_DISCONNECT;
3950         }
3951 }
3952 
3953 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3954 {
3955         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3956         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3957 
3958         if (hw_ops->io_slot_reset) {
3959                 return hw_ops->io_slot_reset(pdev);
3960         } else {
3961                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3962                 return PCI_ERS_RESULT_DISCONNECT;
3963         }
3964 }
3965 
3966 static void qlcnic_io_resume(struct pci_dev *pdev)
3967 {
3968         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3969         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3970 
3971         if (hw_ops->io_resume)
3972                 hw_ops->io_resume(pdev);
3973         else
3974                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3975 }
3976 
3977 
3978 static int
3979 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3980 {
3981         int err;
3982 
3983         err = qlcnic_can_start_firmware(adapter);
3984         if (err)
3985                 return err;
3986 
3987         err = qlcnic_check_npar_opertional(adapter);
3988         if (err)
3989                 return err;
3990 
3991         err = qlcnic_initialize_nic(adapter);
3992         if (err)
3993                 return err;
3994 
3995         qlcnic_check_options(adapter);
3996 
3997         err = qlcnic_set_eswitch_port_config(adapter);
3998         if (err)
3999                 return err;
4000 
4001         adapter->need_fw_reset = 0;
4002 
4003         return err;
4004 }
4005 
4006 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4007                           int queue_type)
4008 {
4009         struct net_device *netdev = adapter->netdev;
4010         char buf[8];
4011 
4012         if (queue_type == QLCNIC_RX_QUEUE)
4013                 strcpy(buf, "SDS");
4014         else
4015                 strcpy(buf, "Tx");
4016 
4017         if (!is_power_of_2(ring_cnt)) {
4018                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4019                            buf);
4020                 return -EINVAL;
4021         }
4022 
4023         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4024             !qlcnic_check_multi_tx(adapter)) {
4025                         netdev_err(netdev, "No Multi Tx queue support\n");
4026                         return -EINVAL;
4027         }
4028 
4029         if (ring_cnt > num_online_cpus()) {
4030                 netdev_err(netdev,
4031                            "%s value[%u] should not be higher than, number of online CPUs\n",
4032                            buf, num_online_cpus());
4033                 return -EINVAL;
4034         }
4035 
4036         return 0;
4037 }
4038 
4039 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4040 {
4041         struct net_device *netdev = adapter->netdev;
4042         u8 tx_rings, rx_rings;
4043         int err;
4044 
4045         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4046                 return -EBUSY;
4047 
4048         tx_rings = adapter->drv_tss_rings;
4049         rx_rings = adapter->drv_rss_rings;
4050 
4051         netif_device_detach(netdev);
4052 
4053         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4054         if (err)
4055                 goto done;
4056 
4057         if (netif_running(netdev))
4058                 __qlcnic_down(adapter, netdev);
4059 
4060         qlcnic_detach(adapter);
4061 
4062         if (qlcnic_83xx_check(adapter)) {
4063                 qlcnic_83xx_free_mbx_intr(adapter);
4064                 qlcnic_83xx_enable_mbx_poll(adapter);
4065         }
4066 
4067         qlcnic_teardown_intr(adapter);
4068 
4069         err = qlcnic_setup_intr(adapter);
4070         if (err) {
4071                 kfree(adapter->msix_entries);
4072                 netdev_err(netdev, "failed to setup interrupt\n");
4073                 return err;
4074         }
4075 
4076         /* Check if we need to update real_num_{tx|rx}_queues because
4077          * qlcnic_setup_intr() may change Tx/Rx rings size
4078          */
4079         if ((tx_rings != adapter->drv_tx_rings) ||
4080             (rx_rings != adapter->drv_sds_rings)) {
4081                 err = qlcnic_set_real_num_queues(adapter,
4082                                                  adapter->drv_tx_rings,
4083                                                  adapter->drv_sds_rings);
4084                 if (err)
4085                         goto done;
4086         }
4087 
4088         if (qlcnic_83xx_check(adapter)) {
4089                 qlcnic_83xx_initialize_nic(adapter, 1);
4090                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4091                 qlcnic_83xx_disable_mbx_poll(adapter);
4092                 if (err) {
4093                         dev_err(&adapter->pdev->dev,
4094                                 "failed to setup mbx interrupt\n");
4095                         goto done;
4096                 }
4097         }
4098 
4099         if (netif_running(netdev)) {
4100                 err = qlcnic_attach(adapter);
4101                 if (err)
4102                         goto done;
4103                 err = __qlcnic_up(adapter, netdev);
4104                 if (err)
4105                         goto done;
4106                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4107         }
4108 done:
4109         netif_device_attach(netdev);
4110         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4111         return err;
4112 }
4113 
4114 #ifdef CONFIG_INET
4115 
4116 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4117 
4118 static void
4119 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4120                         struct net_device *dev, unsigned long event)
4121 {
4122         const struct in_ifaddr *ifa;
4123         struct in_device *indev;
4124 
4125         indev = in_dev_get(dev);
4126         if (!indev)
4127                 return;
4128 
4129         in_dev_for_each_ifa_rtnl(ifa, indev) {
4130                 switch (event) {
4131                 case NETDEV_UP:
4132                         qlcnic_config_ipaddr(adapter,
4133                                         ifa->ifa_address, QLCNIC_IP_UP);
4134                         break;
4135                 case NETDEV_DOWN:
4136                         qlcnic_config_ipaddr(adapter,
4137                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4138                         break;
4139                 default:
4140                         break;
4141                 }
4142         }
4143 
4144         in_dev_put(indev);
4145 }
4146 
4147 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4148 {
4149         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4150         struct net_device *dev;
4151         u16 vid;
4152 
4153         qlcnic_config_indev_addr(adapter, netdev, event);
4154 
4155         rcu_read_lock();
4156         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4157                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4158                 if (!dev)
4159                         continue;
4160                 qlcnic_config_indev_addr(adapter, dev, event);
4161         }
4162         rcu_read_unlock();
4163 }
4164 
4165 static int qlcnic_netdev_event(struct notifier_block *this,
4166                                  unsigned long event, void *ptr)
4167 {
4168         struct qlcnic_adapter *adapter;
4169         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4170 
4171 recheck:
4172         if (dev == NULL)
4173                 goto done;
4174 
4175         if (is_vlan_dev(dev)) {
4176                 dev = vlan_dev_real_dev(dev);
4177                 goto recheck;
4178         }
4179 
4180         if (!is_qlcnic_netdev(dev))
4181                 goto done;
4182 
4183         adapter = netdev_priv(dev);
4184 
4185         if (!adapter)
4186                 goto done;
4187 
4188         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4189                 goto done;
4190 
4191         qlcnic_config_indev_addr(adapter, dev, event);
4192 done:
4193         return NOTIFY_DONE;
4194 }
4195 
4196 static int
4197 qlcnic_inetaddr_event(struct notifier_block *this,
4198                 unsigned long event, void *ptr)
4199 {
4200         struct qlcnic_adapter *adapter;
4201         struct net_device *dev;
4202 
4203         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4204 
4205         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4206 
4207 recheck:
4208         if (dev == NULL)
4209                 goto done;
4210 
4211         if (is_vlan_dev(dev)) {
4212                 dev = vlan_dev_real_dev(dev);
4213                 goto recheck;
4214         }
4215 
4216         if (!is_qlcnic_netdev(dev))
4217                 goto done;
4218 
4219         adapter = netdev_priv(dev);
4220 
4221         if (!adapter)
4222                 goto done;
4223 
4224         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4225                 goto done;
4226 
4227         switch (event) {
4228         case NETDEV_UP:
4229                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4230 
4231                 break;
4232         case NETDEV_DOWN:
4233                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4234 
4235                 break;
4236         default:
4237                 break;
4238         }
4239 
4240 done:
4241         return NOTIFY_DONE;
4242 }
4243 
4244 static struct notifier_block    qlcnic_netdev_cb = {
4245         .notifier_call = qlcnic_netdev_event,
4246 };
4247 
4248 static struct notifier_block qlcnic_inetaddr_cb = {
4249         .notifier_call = qlcnic_inetaddr_event,
4250 };
4251 #else
4252 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4253 { }
4254 #endif
4255 static const struct pci_error_handlers qlcnic_err_handler = {
4256         .error_detected = qlcnic_io_error_detected,
4257         .slot_reset = qlcnic_io_slot_reset,
4258         .resume = qlcnic_io_resume,
4259 };
4260 
4261 static struct pci_driver qlcnic_driver = {
4262         .name = qlcnic_driver_name,
4263         .id_table = qlcnic_pci_tbl,
4264         .probe = qlcnic_probe,
4265         .remove = qlcnic_remove,
4266 #ifdef CONFIG_PM
4267         .suspend = qlcnic_suspend,
4268         .resume = qlcnic_resume,
4269 #endif
4270         .shutdown = qlcnic_shutdown,
4271         .err_handler = &qlcnic_err_handler,
4272 #ifdef CONFIG_QLCNIC_SRIOV
4273         .sriov_configure = qlcnic_pci_sriov_configure,
4274 #endif
4275 
4276 };
4277 
4278 static int __init qlcnic_init_module(void)
4279 {
4280         int ret;
4281 
4282         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4283 
4284 #ifdef CONFIG_INET
4285         register_netdevice_notifier(&qlcnic_netdev_cb);
4286         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4287 #endif
4288 
4289         ret = pci_register_driver(&qlcnic_driver);
4290         if (ret) {
4291 #ifdef CONFIG_INET
4292                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4293                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4294 #endif
4295         }
4296 
4297         return ret;
4298 }
4299 
4300 module_init(qlcnic_init_module);
4301 
4302 static void __exit qlcnic_exit_module(void)
4303 {
4304         pci_unregister_driver(&qlcnic_driver);
4305 
4306 #ifdef CONFIG_INET
4307         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4308         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4309 #endif
4310 }
4311 
4312 module_exit(qlcnic_exit_module);

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