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 351