1 /* cnic_if.h: Broadcom CNIC core network driver. 2 * 3 * Copyright (c) 2006-2011 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 "2.5.7" 16 #define CNIC_MODULE_RELDATE "July 20, 2011" 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 90 #define DRV_CTL_IO_WR_CMD 0x101 91 #define DRV_CTL_IO_RD_CMD 0x102 92 #define DRV_CTL_CTX_WR_CMD 0x103 93 #define DRV_CTL_CTXTBL_WR_CMD 0x104 94 #define DRV_CTL_RET_L5_SPQ_CREDIT_CMD 0x105 95 #define DRV_CTL_START_L2_CMD 0x106 96 #define DRV_CTL_STOP_L2_CMD 0x107 97 #define DRV_CTL_RET_L2_SPQ_CREDIT_CMD 0x10c 98 #define DRV_CTL_ISCSI_STOPPED_CMD 0x10d 99 100 struct cnic_ctl_completion { 101 u32 cid; 102 u8 opcode; 103 u8 error; 104 }; 105 106 struct cnic_ctl_info { 107 int cmd; 108 union { 109 struct cnic_ctl_completion comp; 110 char bytes[MAX_CNIC_CTL_DATA]; 111 } data; 112 }; 113 114 struct drv_ctl_spq_credit { 115 u32 credit_count; 116 }; 117 118 struct drv_ctl_io { 119 u32 cid_addr; 120 u32 offset; 121 u32 data; 122 dma_addr_t dma_addr; 123 }; 124 125 struct drv_ctl_l2_ring { 126 u32 client_id; 127 u32 cid; 128 }; 129 130 struct drv_ctl_info { 131 int cmd; 132 union { 133 struct drv_ctl_spq_credit credit; 134 struct drv_ctl_io io; 135 struct drv_ctl_l2_ring ring; 136 char bytes[MAX_DRV_CTL_DATA]; 137 } data; 138 }; 139 140 struct cnic_ops { 141 struct module *cnic_owner; 142 /* Calls to these functions are protected by RCU. When 143 * unregistering, we wait for any calls to complete before 144 * continuing. 145 */ 146 int (*cnic_handler)(void *, void *); 147 int (*cnic_ctl)(void *, struct cnic_ctl_info *); 148 }; 149 150 #define MAX_CNIC_VEC 8 151 152 struct cnic_irq { 153 unsigned int vector; 154 void *status_blk; 155 u32 status_blk_num; 156 u32 status_blk_num2; 157 u32 irq_flags; 158 #define CNIC_IRQ_FL_MSIX 0x00000001 159 }; 160 161 struct cnic_eth_dev { 162 struct module *drv_owner; 163 u32 drv_state; 164 #define CNIC_DRV_STATE_REGD 0x00000001 165 #define CNIC_DRV_STATE_USING_MSIX 0x00000002 166 #define CNIC_DRV_STATE_NO_ISCSI_OOO 0x00000004 167 #define CNIC_DRV_STATE_NO_ISCSI 0x00000008 168 #define CNIC_DRV_STATE_NO_FCOE 0x00000010 169 u32 chip_id; 170 u32 max_kwqe_pending; 171 struct pci_dev *pdev; 172 void __iomem *io_base; 173 void __iomem *io_base2; 174 const void *iro_arr; 175 176 u32 ctx_tbl_offset; 177 u32 ctx_tbl_len; 178 int ctx_blk_size; 179 u32 starting_cid; 180 u32 max_iscsi_conn; 181 u32 max_fcoe_conn; 182 u32 max_rdma_conn; 183 u32 fcoe_init_cid; 184 u32 fcoe_wwn_port_name_hi; 185 u32 fcoe_wwn_port_name_lo; 186 u32 fcoe_wwn_node_name_hi; 187 u32 fcoe_wwn_node_name_lo; 188 189 u16 iscsi_l2_client_id; 190 u16 iscsi_l2_cid; 191 u8 iscsi_mac[ETH_ALEN]; 192 193 int num_irq; 194 struct cnic_irq irq_arr[MAX_CNIC_VEC]; 195 int (*drv_register_cnic)(struct net_device *, 196 struct cnic_ops *, void *); 197 int (*drv_unregister_cnic)(struct net_device *); 198 int (*drv_submit_kwqes_32)(struct net_device *, 199 struct kwqe *[], u32); 200 int (*drv_submit_kwqes_16)(struct net_device *, 201 struct kwqe_16 *[], u32); 202 int (*drv_ctl)(struct net_device *, struct drv_ctl_info *); 203 unsigned long reserved1[2]; 204 }; 205 206 struct cnic_sockaddr { 207 union { 208 struct sockaddr_in v4; 209 struct sockaddr_in6 v6; 210 } local; 211 union { 212 struct sockaddr_in v4; 213 struct sockaddr_in6 v6; 214 } remote; 215 }; 216 217 struct cnic_sock { 218 struct cnic_dev *dev; 219 void *context; 220 u32 src_ip[4]; 221 u32 dst_ip[4]; 222 u16 src_port; 223 u16 dst_port; 224 u16 vlan_id; 225 unsigned char old_ha[6]; 226 unsigned char ha[6]; 227 u32 mtu; 228 u32 cid; 229 u32 l5_cid; 230 u32 pg_cid; 231 int ulp_type; 232 233 u32 ka_timeout; 234 u32 ka_interval; 235 u8 ka_max_probe_count; 236 u8 tos; 237 u8 ttl; 238 u8 snd_seq_scale; 239 u32 rcv_buf; 240 u32 snd_buf; 241 u32 seed; 242 243 unsigned long tcp_flags; 244 #define SK_TCP_NO_DELAY_ACK 0x1 245 #define SK_TCP_KEEP_ALIVE 0x2 246 #define SK_TCP_NAGLE 0x4 247 #define SK_TCP_TIMESTAMP 0x8 248 #define SK_TCP_SACK 0x10 249 #define SK_TCP_SEG_SCALING 0x20 250 unsigned long flags; 251 #define SK_F_INUSE 0 252 #define SK_F_OFFLD_COMPLETE 1 253 #define SK_F_OFFLD_SCHED 2 254 #define SK_F_PG_OFFLD_COMPLETE 3 255 #define SK_F_CONNECT_START 4 256 #define SK_F_IPV6 5 257 #define SK_F_CLOSING 7 258 259 atomic_t ref_count; 260 u32 state; 261 struct kwqe kwqe1; 262 struct kwqe kwqe2; 263 struct kwqe kwqe3; 264 }; 265 266 struct cnic_dev { 267 struct net_device *netdev; 268 struct pci_dev *pcidev; 269 void __iomem *regview; 270 struct list_head list; 271 272 int (*register_device)(struct cnic_dev *dev, int ulp_type, 273 void *ulp_ctx); 274 int (*unregister_device)(struct cnic_dev *dev, int ulp_type); 275 int (*submit_kwqes)(struct cnic_dev *dev, struct kwqe *wqes[], 276 u32 num_wqes); 277 int (*submit_kwqes_16)(struct cnic_dev *dev, struct kwqe_16 *wqes[], 278 u32 num_wqes); 279 280 int (*cm_create)(struct cnic_dev *, int, u32, u32, struct cnic_sock **, 281 void *); 282 int (*cm_destroy)(struct cnic_sock *); 283 int (*cm_connect)(struct cnic_sock *, struct cnic_sockaddr *); 284 int (*cm_abort)(struct cnic_sock *); 285 int (*cm_close)(struct cnic_sock *); 286 struct cnic_dev *(*cm_select_dev)(struct sockaddr_in *, int ulp_type); 287 int (*iscsi_nl_msg_recv)(struct cnic_dev *dev, u32 msg_type, 288 char *data, u16 data_size); 289 unsigned long flags; 290 #define CNIC_F_CNIC_UP 1 291 #define CNIC_F_BNX2_CLASS 3 292 #define CNIC_F_BNX2X_CLASS 4 293 atomic_t ref_count; 294 u8 mac_addr[6]; 295 296 int max_iscsi_conn; 297 int max_fcoe_conn; 298 int max_rdma_conn; 299 300 void *cnic_priv; 301 }; 302 303 #define CNIC_WR(dev, off, val) writel(val, dev->regview + off) 304 #define CNIC_WR16(dev, off, val) writew(val, dev->regview + off) 305 #define CNIC_WR8(dev, off, val) writeb(val, dev->regview + off) 306 #define CNIC_RD(dev, off) readl(dev->regview + off) 307 #define CNIC_RD16(dev, off) readw(dev->regview + off) 308 309 struct cnic_ulp_ops { 310 /* Calls to these functions are protected by RCU. When 311 * unregistering, we wait for any calls to complete before 312 * continuing. 313 */ 314 315 void (*cnic_init)(struct cnic_dev *dev); 316 void (*cnic_exit)(struct cnic_dev *dev); 317 void (*cnic_start)(void *ulp_ctx); 318 void (*cnic_stop)(void *ulp_ctx); 319 void (*indicate_kcqes)(void *ulp_ctx, struct kcqe *cqes[], 320 u32 num_cqes); 321 void (*indicate_netevent)(void *ulp_ctx, unsigned long event, u16 vid); 322 void (*cm_connect_complete)(struct cnic_sock *); 323 void (*cm_close_complete)(struct cnic_sock *); 324 void (*cm_abort_complete)(struct cnic_sock *); 325 void (*cm_remote_close)(struct cnic_sock *); 326 void (*cm_remote_abort)(struct cnic_sock *); 327 int (*iscsi_nl_send_msg)(void *ulp_ctx, u32 msg_type, 328 char *data, u16 data_size); 329 struct module *owner; 330 atomic_t ref_count; 331 }; 332 333 extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops); 334 335 extern int cnic_unregister_driver(int ulp_type); 336 337 extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev); 338 extern struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev); 339 340 #endif 341