| 1 | /* cnic_if.h: Broadcom CNIC core network driver. |
| 2 | * |
| 3 | * Copyright (c) 2006 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 "2.0.0" |
| 16 | #define CNIC_MODULE_RELDATE "May 21, 2009" |
| 17 | |
| 18 | #define CNIC_ULP_RDMA 0 |
| 19 | #define CNIC_ULP_ISCSI 1 |
| 20 | #define CNIC_ULP_L4 2 |
| 21 | #define MAX_CNIC_ULP_TYPE_EXT 2 |
| 22 | #define MAX_CNIC_ULP_TYPE 3 |
| 23 | |
| 24 | struct kwqe { |
| 25 | u32 kwqe_op_flag; |
| 26 | |
| 27 | #define KWQE_OPCODE_MASK 0x00ff0000 |
| 28 | #define KWQE_OPCODE_SHIFT 16 |
| 29 | #define KWQE_FLAGS_LAYER_SHIFT 28 |
| 30 | #define KWQE_OPCODE(x) ((x & KWQE_OPCODE_MASK) >> KWQE_OPCODE_SHIFT) |
| 31 | |
| 32 | u32 kwqe_info0; |
| 33 | u32 kwqe_info1; |
| 34 | u32 kwqe_info2; |
| 35 | u32 kwqe_info3; |
| 36 | u32 kwqe_info4; |
| 37 | u32 kwqe_info5; |
| 38 | u32 kwqe_info6; |
| 39 | }; |
| 40 | |
| 41 | struct kwqe_16 { |
| 42 | u32 kwqe_info0; |
| 43 | u32 kwqe_info1; |
| 44 | u32 kwqe_info2; |
| 45 | u32 kwqe_info3; |
| 46 | }; |
| 47 | |
| 48 | struct kcqe { |
| 49 | u32 kcqe_info0; |
| 50 | u32 kcqe_info1; |
| 51 | u32 kcqe_info2; |
| 52 | u32 kcqe_info3; |
| 53 | u32 kcqe_info4; |
| 54 | u32 kcqe_info5; |
| 55 | u32 kcqe_info6; |
| 56 | u32 kcqe_op_flag; |
| 57 | #define KCQE_RAMROD_COMPLETION (0x1<<27) /* Everest */ |
| 58 | #define KCQE_FLAGS_LAYER_MASK (0x7<<28) |
| 59 | #define KCQE_FLAGS_LAYER_MASK_MISC (0<<28) |
| 60 | #define KCQE_FLAGS_LAYER_MASK_L2 (2<<28) |
| 61 | #define KCQE_FLAGS_LAYER_MASK_L3 (3<<28) |
| 62 | #define KCQE_FLAGS_LAYER_MASK_L4 (4<<28) |
| 63 | #define KCQE_FLAGS_LAYER_MASK_L5_RDMA (5<<28) |
| 64 | #define KCQE_FLAGS_LAYER_MASK_L5_ISCSI (6<<28) |
| 65 | #define KCQE_FLAGS_NEXT (1<<31) |
| 66 | #define KCQE_FLAGS_OPCODE_MASK (0xff<<16) |
| 67 | #define KCQE_FLAGS_OPCODE_SHIFT (16) |
| 68 | #define KCQE_OPCODE(op) \ |
| 69 | (((op) & KCQE_FLAGS_OPCODE_MASK) >> KCQE_FLAGS_OPCODE_SHIFT) |
| 70 | }; |
| 71 | |
| 72 | #define MAX_CNIC_CTL_DATA 64 |
| 73 | #define MAX_DRV_CTL_DATA 64 |
| 74 | |
| 75 | #define CNIC_CTL_STOP_CMD 1 |
| 76 | #define CNIC_CTL_START_CMD 2 |
| 77 | #define CNIC_CTL_COMPLETION_CMD 3 |
| 78 | |
| 79 | #define DRV_CTL_IO_WR_CMD 0x101 |
| 80 | #define DRV_CTL_IO_RD_CMD 0x102 |
| 81 | #define DRV_CTL_CTX_WR_CMD 0x103 |
| 82 | #define DRV_CTL_CTXTBL_WR_CMD 0x104 |
| 83 | #define DRV_CTL_COMPLETION_CMD 0x105 |
| 84 | |
| 85 | struct cnic_ctl_completion { |
| 86 | u32 cid; |
| 87 | }; |
| 88 | |
| 89 | struct drv_ctl_completion { |
| 90 | u32 comp_count; |
| 91 | }; |
| 92 | |
| 93 | struct cnic_ctl_info { |
| 94 | int cmd; |
| 95 | union { |
| 96 | struct cnic_ctl_completion comp; |
| 97 | char bytes[MAX_CNIC_CTL_DATA]; |
| 98 | } data; |
| 99 | }; |
| 100 | |
| 101 | struct drv_ctl_io { |
| 102 | u32 cid_addr; |
| 103 | u32 offset; |
| 104 | u32 data; |
| 105 | dma_addr_t dma_addr; |
| 106 | }; |
| 107 | |
| 108 | struct drv_ctl_info { |
| 109 | int cmd; |
| 110 | union { |
| 111 | struct drv_ctl_completion comp; |
| 112 | struct drv_ctl_io io; |
| 113 | char bytes[MAX_DRV_CTL_DATA]; |
| 114 | } data; |
| 115 | }; |
| 116 | |
| 117 | struct cnic_ops { |
| 118 | struct module *cnic_owner; |
| 119 | /* Calls to these functions are protected by RCU. When |
| 120 | * unregistering, we wait for any calls to complete before |
| 121 | * continuing. |
| 122 | */ |
| 123 | int (*cnic_handler)(void *, void *); |
| 124 | int (*cnic_ctl)(void *, struct cnic_ctl_info *); |
| 125 | }; |
| 126 | |
| 127 | #define MAX_CNIC_VEC 8 |
| 128 | |
| 129 | struct cnic_irq { |
| 130 | unsigned int vector; |
| 131 | void *status_blk; |
| 132 | u32 status_blk_num; |
| 133 | u32 irq_flags; |
| 134 | #define CNIC_IRQ_FL_MSIX 0x00000001 |
| 135 | }; |
| 136 | |
| 137 | struct cnic_eth_dev { |
| 138 | struct module *drv_owner; |
| 139 | u32 drv_state; |
| 140 | #define CNIC_DRV_STATE_REGD 0x00000001 |
| 141 | #define CNIC_DRV_STATE_USING_MSIX 0x00000002 |
| 142 | u32 chip_id; |
| 143 | u32 max_kwqe_pending; |
| 144 | struct pci_dev *pdev; |
| 145 | void __iomem *io_base; |
| 146 | |
| 147 | u32 ctx_tbl_offset; |
| 148 | u32 ctx_tbl_len; |
| 149 | int ctx_blk_size; |
| 150 | u32 starting_cid; |
| 151 | u32 max_iscsi_conn; |
| 152 | u32 max_fcoe_conn; |
| 153 | u32 max_rdma_conn; |
| 154 | u32 reserved0[2]; |
| 155 | |
| 156 | int num_irq; |
| 157 | struct cnic_irq irq_arr[MAX_CNIC_VEC]; |
| 158 | int (*drv_register_cnic)(struct net_device *, |
| 159 | struct cnic_ops *, void *); |
| 160 | int (*drv_unregister_cnic)(struct net_device *); |
| 161 | int (*drv_submit_kwqes_32)(struct net_device *, |
| 162 | struct kwqe *[], u32); |
| 163 | int (*drv_submit_kwqes_16)(struct net_device *, |
| 164 | struct kwqe_16 *[], u32); |
| 165 | int (*drv_ctl)(struct net_device *, struct drv_ctl_info *); |
| 166 | unsigned long reserved1[2]; |
| 167 | }; |
| 168 | |
| 169 | struct cnic_sockaddr { |
| 170 | union { |
| 171 | struct sockaddr_in v4; |
| 172 | struct sockaddr_in6 v6; |
| 173 | } local; |
| 174 | union { |
| 175 | struct sockaddr_in v4; |
| 176 | struct sockaddr_in6 v6; |
| 177 | } remote; |
| 178 | }; |
| 179 | |
| 180 | struct cnic_sock { |
| 181 | struct cnic_dev *dev; |
| 182 | void *context; |
| 183 | u32 src_ip[4]; |
| 184 | u32 dst_ip[4]; |
| 185 | u16 src_port; |
| 186 | u16 dst_port; |
| 187 | u16 vlan_id; |
| 188 | unsigned char old_ha[6]; |
| 189 | unsigned char ha[6]; |
| 190 | u32 mtu; |
| 191 | u32 cid; |
| 192 | u32 l5_cid; |
| 193 | u32 pg_cid; |
| 194 | int ulp_type; |
| 195 | |
| 196 | u32 ka_timeout; |
| 197 | u32 ka_interval; |
| 198 | u8 ka_max_probe_count; |
| 199 | u8 tos; |
| 200 | u8 ttl; |
| 201 | u8 snd_seq_scale; |
| 202 | u32 rcv_buf; |
| 203 | u32 snd_buf; |
| 204 | u32 seed; |
| 205 | |
| 206 | unsigned long tcp_flags; |
| 207 | #define SK_TCP_NO_DELAY_ACK 0x1 |
| 208 | #define SK_TCP_KEEP_ALIVE 0x2 |
| 209 | #define SK_TCP_NAGLE 0x4 |
| 210 | #define SK_TCP_TIMESTAMP 0x8 |
| 211 | #define SK_TCP_SACK 0x10 |
| 212 | #define SK_TCP_SEG_SCALING 0x20 |
| 213 | unsigned long flags; |
| 214 | #define SK_F_INUSE 0 |
| 215 | #define SK_F_OFFLD_COMPLETE 1 |
| 216 | #define SK_F_OFFLD_SCHED 2 |
| 217 | #define SK_F_PG_OFFLD_COMPLETE 3 |
| 218 | #define SK_F_CONNECT_START 4 |
| 219 | #define SK_F_IPV6 5 |
| 220 | #define SK_F_CLOSING 7 |
| 221 | |
| 222 | atomic_t ref_count; |
| 223 | u32 state; |
| 224 | struct kwqe kwqe1; |
| 225 | struct kwqe kwqe2; |
| 226 | struct kwqe kwqe3; |
| 227 | }; |
| 228 | |
| 229 | struct cnic_dev { |
| 230 | struct net_device *netdev; |
| 231 | struct pci_dev *pcidev; |
| 232 | void __iomem *regview; |
| 233 | struct list_head list; |
| 234 | |
| 235 | int (*register_device)(struct cnic_dev *dev, int ulp_type, |
| 236 | void *ulp_ctx); |
| 237 | int (*unregister_device)(struct cnic_dev *dev, int ulp_type); |
| 238 | int (*submit_kwqes)(struct cnic_dev *dev, struct kwqe *wqes[], |
| 239 | u32 num_wqes); |
| 240 | int (*submit_kwqes_16)(struct cnic_dev *dev, struct kwqe_16 *wqes[], |
| 241 | u32 num_wqes); |
| 242 | |
| 243 | int (*cm_create)(struct cnic_dev *, int, u32, u32, struct cnic_sock **, |
| 244 | void *); |
| 245 | int (*cm_destroy)(struct cnic_sock *); |
| 246 | int (*cm_connect)(struct cnic_sock *, struct cnic_sockaddr *); |
| 247 | int (*cm_abort)(struct cnic_sock *); |
| 248 | int (*cm_close)(struct cnic_sock *); |
| 249 | struct cnic_dev *(*cm_select_dev)(struct sockaddr_in *, int ulp_type); |
| 250 | int (*iscsi_nl_msg_recv)(struct cnic_dev *dev, u32 msg_type, |
| 251 | char *data, u16 data_size); |
| 252 | unsigned long flags; |
| 253 | #define CNIC_F_CNIC_UP 1 |
| 254 | #define CNIC_F_BNX2_CLASS 3 |
| 255 | #define CNIC_F_BNX2X_CLASS 4 |
| 256 | atomic_t ref_count; |
| 257 | u8 mac_addr[6]; |
| 258 | |
| 259 | int max_iscsi_conn; |
| 260 | int max_fcoe_conn; |
| 261 | int max_rdma_conn; |
| 262 | |
| 263 | void *cnic_priv; |
| 264 | }; |
| 265 | |
| 266 | #define CNIC_WR(dev, off, val) writel(val, dev->regview + off) |
| 267 | #define CNIC_WR16(dev, off, val) writew(val, dev->regview + off) |
| 268 | #define CNIC_WR8(dev, off, val) writeb(val, dev->regview + off) |
| 269 | #define CNIC_RD(dev, off) readl(dev->regview + off) |
| 270 | #define CNIC_RD16(dev, off) readw(dev->regview + off) |
| 271 | |
| 272 | struct cnic_ulp_ops { |
| 273 | /* Calls to these functions are protected by RCU. When |
| 274 | * unregistering, we wait for any calls to complete before |
| 275 | * continuing. |
| 276 | */ |
| 277 | |
| 278 | void (*cnic_init)(struct cnic_dev *dev); |
| 279 | void (*cnic_exit)(struct cnic_dev *dev); |
| 280 | void (*cnic_start)(void *ulp_ctx); |
| 281 | void (*cnic_stop)(void *ulp_ctx); |
| 282 | void (*indicate_kcqes)(void *ulp_ctx, struct kcqe *cqes[], |
| 283 | u32 num_cqes); |
| 284 | void (*indicate_netevent)(void *ulp_ctx, unsigned long event); |
| 285 | void (*cm_connect_complete)(struct cnic_sock *); |
| 286 | void (*cm_close_complete)(struct cnic_sock *); |
| 287 | void (*cm_abort_complete)(struct cnic_sock *); |
| 288 | void (*cm_remote_close)(struct cnic_sock *); |
| 289 | void (*cm_remote_abort)(struct cnic_sock *); |
| 290 | void (*iscsi_nl_send_msg)(struct cnic_dev *dev, u32 msg_type, |
| 291 | char *data, u16 data_size); |
| 292 | struct module *owner; |
| 293 | atomic_t ref_count; |
| 294 | }; |
| 295 | |
| 296 | extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops); |
| 297 | |
| 298 | extern int cnic_unregister_driver(int ulp_type); |
| 299 | |
| 300 | extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev); |
| 301 | |
| 302 | #endif |