drivers/net/ethernet/broadcom/cnic_if.h

   1 /* cnic_if.h: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2012 Broadcom Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation.
   8  *
   9  */
  10
  11
  12 #ifndef CNIC_IF_H
  13 #define CNIC_IF_H
  14
  15 #define CNIC_MODULE_VERSION     "2.5.10"
  16 #define CNIC_MODULE_RELDATE     "March 21, 2012"
  17
  18 #define CNIC_ULP_RDMA           0
  19 #define CNIC_ULP_ISCSI          1
  20 #define CNIC_ULP_FCOE           2
  21 #define CNIC_ULP_L4             3
  22 #define MAX_CNIC_ULP_TYPE_EXT   3
  23 #define MAX_CNIC_ULP_TYPE       4
  24
  25 struct kwqe {
  26         u32 kwqe_op_flag;
  27
  28 #define KWQE_QID_SHIFT          8
  29 #define KWQE_OPCODE_MASK        0x00ff0000
  30 #define KWQE_OPCODE_SHIFT       16
  31 #define KWQE_OPCODE(x)          ((x & KWQE_OPCODE_MASK) >> KWQE_OPCODE_SHIFT)
  32 #define KWQE_LAYER_MASK                 0x70000000
  33 #define KWQE_LAYER_SHIFT                28
  34 #define KWQE_FLAGS_LAYER_MASK_L2        (2<<28)
  35 #define KWQE_FLAGS_LAYER_MASK_L3        (3<<28)
  36 #define KWQE_FLAGS_LAYER_MASK_L4        (4<<28)
  37 #define KWQE_FLAGS_LAYER_MASK_L5_RDMA   (5<<28)
  38 #define KWQE_FLAGS_LAYER_MASK_L5_ISCSI  (6<<28)
  39 #define KWQE_FLAGS_LAYER_MASK_L5_FCOE   (7<<28)
  40
  41         u32 kwqe_info0;
  42         u32 kwqe_info1;
  43         u32 kwqe_info2;
  44         u32 kwqe_info3;
  45         u32 kwqe_info4;
  46         u32 kwqe_info5;
  47         u32 kwqe_info6;
  48 };
  49
  50 struct kwqe_16 {
  51         u32 kwqe_info0;
  52         u32 kwqe_info1;
  53         u32 kwqe_info2;
  54         u32 kwqe_info3;
  55 };
  56
  57 struct kcqe {
  58         u32 kcqe_info0;
  59         u32 kcqe_info1;
  60         u32 kcqe_info2;
  61         u32 kcqe_info3;
  62         u32 kcqe_info4;
  63         u32 kcqe_info5;
  64         u32 kcqe_info6;
  65         u32 kcqe_op_flag;
  66                 #define KCQE_RAMROD_COMPLETION          (0x1<<27) /* Everest */
  67                 #define KCQE_FLAGS_LAYER_MASK           (0x7<<28)
  68                 #define KCQE_FLAGS_LAYER_MASK_MISC      (0<<28)
  69                 #define KCQE_FLAGS_LAYER_MASK_L2        (2<<28)
  70                 #define KCQE_FLAGS_LAYER_MASK_L3        (3<<28)
  71                 #define KCQE_FLAGS_LAYER_MASK_L4        (4<<28)
  72                 #define KCQE_FLAGS_LAYER_MASK_L5_RDMA   (5<<28)
  73                 #define KCQE_FLAGS_LAYER_MASK_L5_ISCSI  (6<<28)
  74                 #define KCQE_FLAGS_LAYER_MASK_L5_FCOE   (7<<28)
  75                 #define KCQE_FLAGS_NEXT                 (1<<31)
  76                 #define KCQE_FLAGS_OPCODE_MASK          (0xff<<16)
  77                 #define KCQE_FLAGS_OPCODE_SHIFT         (16)
  78                 #define KCQE_OPCODE(op)                 \
  79                 (((op) & KCQE_FLAGS_OPCODE_MASK) >> KCQE_FLAGS_OPCODE_SHIFT)
  80 };
  81
  82 #define MAX_CNIC_CTL_DATA       64
  83 #define MAX_DRV_CTL_DATA        64
  84
  85 #define CNIC_CTL_STOP_CMD               1
  86 #define CNIC_CTL_START_CMD              2
  87 #define CNIC_CTL_COMPLETION_CMD         3
  88 #define CNIC_CTL_STOP_ISCSI_CMD         4
  89 #define CNIC_CTL_FCOE_STATS_GET_CMD     5
  90 #define CNIC_CTL_ISCSI_STATS_GET_CMD    6
  91
  92 #define DRV_CTL_IO_WR_CMD               0x101
  93 #define DRV_CTL_IO_RD_CMD               0x102
  94 #define DRV_CTL_CTX_WR_CMD              0x103
  95 #define DRV_CTL_CTXTBL_WR_CMD           0x104
  96 #define DRV_CTL_RET_L5_SPQ_CREDIT_CMD   0x105
  97 #define DRV_CTL_START_L2_CMD            0x106
  98 #define DRV_CTL_STOP_L2_CMD             0x107
  99 #define DRV_CTL_RET_L2_SPQ_CREDIT_CMD   0x10c
 100 #define DRV_CTL_ISCSI_STOPPED_CMD       0x10d
 101 #define DRV_CTL_ULP_REGISTER_CMD        0x10e
 102 #define DRV_CTL_ULP_UNREGISTER_CMD      0x10f
 103
 104 struct cnic_ctl_completion {
 105         u32     cid;
 106         u8      opcode;
 107         u8      error;
 108 };
 109
 110 struct cnic_ctl_info {
 111         int     cmd;
 112         union {
 113                 struct cnic_ctl_completion comp;
 114                 char bytes[MAX_CNIC_CTL_DATA];
 115         } data;
 116 };
 117
 118 struct drv_ctl_spq_credit {
 119         u32     credit_count;
 120 };
 121
 122 struct drv_ctl_io {
 123         u32             cid_addr;
 124         u32             offset;
 125         u32             data;
 126         dma_addr_t      dma_addr;
 127 };
 128
 129 struct drv_ctl_l2_ring {
 130         u32             client_id;
 131         u32             cid;
 132 };
 133
 134 struct drv_ctl_info {
 135         int     cmd;
 136         union {
 137                 struct drv_ctl_spq_credit credit;
 138                 struct drv_ctl_io io;
 139                 struct drv_ctl_l2_ring ring;
 140                 int ulp_type;
 141                 char bytes[MAX_DRV_CTL_DATA];
 142         } data;
 143 };
 144
 145 struct cnic_ops {
 146         struct module   *cnic_owner;
 147         /* Calls to these functions are protected by RCU.  When
 148          * unregistering, we wait for any calls to complete before
 149          * continuing.
 150          */
 151         int             (*cnic_handler)(void *, void *);
 152         int             (*cnic_ctl)(void *, struct cnic_ctl_info *);
 153 };
 154
 155 #define MAX_CNIC_VEC    8
 156
 157 struct cnic_irq {
 158         unsigned int    vector;
 159         void            *status_blk;
 160         u32             status_blk_num;
 161         u32             status_blk_num2;
 162         u32             irq_flags;
 163 #define CNIC_IRQ_FL_MSIX                0x00000001
 164 };
 165
 166 struct cnic_eth_dev {
 167         struct module   *drv_owner;
 168         u32             drv_state;
 169 #define CNIC_DRV_STATE_REGD             0x00000001
 170 #define CNIC_DRV_STATE_USING_MSIX       0x00000002
 171 #define CNIC_DRV_STATE_NO_ISCSI_OOO     0x00000004
 172 #define CNIC_DRV_STATE_NO_ISCSI         0x00000008
 173 #define CNIC_DRV_STATE_NO_FCOE          0x00000010
 174         u32             chip_id;
 175         u32             max_kwqe_pending;
 176         struct pci_dev  *pdev;
 177         void __iomem    *io_base;
 178         void __iomem    *io_base2;
 179         const void      *iro_arr;
 180
 181         u32             ctx_tbl_offset;
 182         u32             ctx_tbl_len;
 183         int             ctx_blk_size;
 184         u32             starting_cid;
 185         u32             max_iscsi_conn;
 186         u32             max_fcoe_conn;
 187         u32             max_rdma_conn;
 188         u32             fcoe_init_cid;
 189         u32             fcoe_wwn_port_name_hi;
 190         u32             fcoe_wwn_port_name_lo;
 191         u32             fcoe_wwn_node_name_hi;
 192         u32             fcoe_wwn_node_name_lo;
 193
 194         u16             iscsi_l2_client_id;
 195         u16             iscsi_l2_cid;
 196         u8              iscsi_mac[ETH_ALEN];
 197
 198         int             num_irq;
 199         struct cnic_irq irq_arr[MAX_CNIC_VEC];
 200         int             (*drv_register_cnic)(struct net_device *,
 201                                              struct cnic_ops *, void *);
 202         int             (*drv_unregister_cnic)(struct net_device *);
 203         int             (*drv_submit_kwqes_32)(struct net_device *,
 204                                                struct kwqe *[], u32);
 205         int             (*drv_submit_kwqes_16)(struct net_device *,
 206                                                struct kwqe_16 *[], u32);
 207         int             (*drv_ctl)(struct net_device *, struct drv_ctl_info *);
 208         unsigned long   reserved1[2];
 209         union drv_info_to_mcp   *addr_drv_info_to_mcp;
 210 };
 211
 212 struct cnic_sockaddr {
 213         union {
 214                 struct sockaddr_in      v4;
 215                 struct sockaddr_in6     v6;
 216         } local;
 217         union {
 218                 struct sockaddr_in      v4;
 219                 struct sockaddr_in6     v6;
 220         } remote;
 221 };
 222
 223 struct cnic_sock {
 224         struct cnic_dev *dev;
 225         void    *context;
 226         u32     src_ip[4];
 227         u32     dst_ip[4];
 228         u16     src_port;
 229         u16     dst_port;
 230         u16     vlan_id;
 231         unsigned char old_ha[6];
 232         unsigned char ha[6];
 233         u32     mtu;
 234         u32     cid;
 235         u32     l5_cid;
 236         u32     pg_cid;
 237         int     ulp_type;
 238
 239         u32     ka_timeout;
 240         u32     ka_interval;
 241         u8      ka_max_probe_count;
 242         u8      tos;
 243         u8      ttl;
 244         u8      snd_seq_scale;
 245         u32     rcv_buf;
 246         u32     snd_buf;
 247         u32     seed;
 248
 249         unsigned long   tcp_flags;
 250 #define SK_TCP_NO_DELAY_ACK     0x1
 251 #define SK_TCP_KEEP_ALIVE       0x2
 252 #define SK_TCP_NAGLE            0x4
 253 #define SK_TCP_TIMESTAMP        0x8
 254 #define SK_TCP_SACK             0x10
 255 #define SK_TCP_SEG_SCALING      0x20
 256         unsigned long   flags;
 257 #define SK_F_INUSE              0
 258 #define SK_F_OFFLD_COMPLETE     1
 259 #define SK_F_OFFLD_SCHED        2
 260 #define SK_F_PG_OFFLD_COMPLETE  3
 261 #define SK_F_CONNECT_START      4
 262 #define SK_F_IPV6               5
 263 #define SK_F_CLOSING            7
 264 #define SK_F_HW_ERR             8
 265
 266         atomic_t ref_count;
 267         u32 state;
 268         struct kwqe kwqe1;
 269         struct kwqe kwqe2;
 270         struct kwqe kwqe3;
 271 };
 272
 273 struct cnic_dev {
 274         struct net_device       *netdev;
 275         struct pci_dev          *pcidev;
 276         void __iomem            *regview;
 277         struct list_head        list;
 278
 279         int (*register_device)(struct cnic_dev *dev, int ulp_type,
 280                                void *ulp_ctx);
 281         int (*unregister_device)(struct cnic_dev *dev, int ulp_type);
 282         int (*submit_kwqes)(struct cnic_dev *dev, struct kwqe *wqes[],
 283                                 u32 num_wqes);
 284         int (*submit_kwqes_16)(struct cnic_dev *dev, struct kwqe_16 *wqes[],
 285                                 u32 num_wqes);
 286
 287         int (*cm_create)(struct cnic_dev *, int, u32, u32, struct cnic_sock **,
 288                          void *);
 289         int (*cm_destroy)(struct cnic_sock *);
 290         int (*cm_connect)(struct cnic_sock *, struct cnic_sockaddr *);
 291         int (*cm_abort)(struct cnic_sock *);
 292         int (*cm_close)(struct cnic_sock *);
 293         struct cnic_dev *(*cm_select_dev)(struct sockaddr_in *, int ulp_type);
 294         int (*iscsi_nl_msg_recv)(struct cnic_dev *dev, u32 msg_type,
 295                                  char *data, u16 data_size);
 296         unsigned long   flags;
 297 #define CNIC_F_CNIC_UP          1
 298 #define CNIC_F_BNX2_CLASS       3
 299 #define CNIC_F_BNX2X_CLASS      4
 300         atomic_t        ref_count;
 301         u8              mac_addr[6];
 302
 303         int             max_iscsi_conn;
 304         int             max_fcoe_conn;
 305         int             max_rdma_conn;
 306
 307         union drv_info_to_mcp   *stats_addr;
 308
 309         void            *cnic_priv;
 310 };
 311
 312 #define CNIC_WR(dev, off, val)          writel(val, dev->regview + off)
 313 #define CNIC_WR16(dev, off, val)        writew(val, dev->regview + off)
 314 #define CNIC_WR8(dev, off, val)         writeb(val, dev->regview + off)
 315 #define CNIC_RD(dev, off)               readl(dev->regview + off)
 316 #define CNIC_RD16(dev, off)             readw(dev->regview + off)
 317
 318 struct cnic_ulp_ops {
 319         /* Calls to these functions are protected by RCU.  When
 320          * unregistering, we wait for any calls to complete before
 321          * continuing.
 322          */
 323
 324         void (*cnic_init)(struct cnic_dev *dev);
 325         void (*cnic_exit)(struct cnic_dev *dev);
 326         void (*cnic_start)(void *ulp_ctx);
 327         void (*cnic_stop)(void *ulp_ctx);
 328         void (*indicate_kcqes)(void *ulp_ctx, struct kcqe *cqes[],
 329                                 u32 num_cqes);
 330         void (*indicate_netevent)(void *ulp_ctx, unsigned long event, u16 vid);
 331         void (*cm_connect_complete)(struct cnic_sock *);
 332         void (*cm_close_complete)(struct cnic_sock *);
 333         void (*cm_abort_complete)(struct cnic_sock *);
 334         void (*cm_remote_close)(struct cnic_sock *);
 335         void (*cm_remote_abort)(struct cnic_sock *);
 336         int (*iscsi_nl_send_msg)(void *ulp_ctx, u32 msg_type,
 337                                   char *data, u16 data_size);
 338         int (*cnic_get_stats)(void *ulp_ctx);
 339         struct module *owner;
 340         atomic_t ref_count;
 341 };
 342
 343 extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops);
 344
 345 extern int cnic_unregister_driver(int ulp_type);
 346
 347 extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev);
 348 extern struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev);
 349
 350 #endif