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 "2.2.13" 16 #define CNIC_MODULE_RELDATE "Jan 31, 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 89 #define DRV_CTL_IO_WR_CMD 0x101 90 #define DRV_CTL_IO_RD_CMD 0x102 91 #define DRV_CTL_CTX_WR_CMD 0x103 92 #define DRV_CTL_CTXTBL_WR_CMD 0x104 93 #define DRV_CTL_RET_L5_SPQ_CREDIT_CMD 0x105 94 #define DRV_CTL_START_L2_CMD 0x106 95 #define DRV_CTL_STOP_L2_CMD 0x107 96 #define DRV_CTL_RET_L2_SPQ_CREDIT_CMD 0x10c 97 98 struct cnic_ctl_completion { 99 u32 cid; 100 }; 101 102 struct cnic_ctl_info { 103 int cmd; 104 union { 105 struct cnic_ctl_completion comp; 106 char bytes[MAX_CNIC_CTL_DATA]; 107 } data; 108 }; 109 110 struct drv_ctl_spq_credit { 111 u32 credit_count; 112 }; 113 114 struct drv_ctl_io { 115 u32 cid_addr; 116 u32 offset; 117 u32 data; 118 dma_addr_t dma_addr; 119 }; 120 121 struct drv_ctl_l2_ring { 122 u32 client_id; 123 u32 cid; 124 }; 125 126 struct drv_ctl_info { 127 int cmd; 128 union { 129 struct drv_ctl_spq_credit credit; 130 struct drv_ctl_io io; 131 struct drv_ctl_l2_ring ring; 132 char bytes[MAX_DRV_CTL_DATA]; 133 } data; 134 }; 135 136 struct cnic_ops { 137 struct module *cnic_owner; 138 /* Calls to these functions are protected by RCU. When 139 * unregistering, we wait for any calls to complete before 140 * continuing. 141 */ 142 int (*cnic_handler)(void *, void *); 143 int (*cnic_ctl)(void *, struct cnic_ctl_info *); 144 }; 145 146 #define MAX_CNIC_VEC 8 147 148 struct cnic_irq { 149 unsigned int vector; 150 void *status_blk; 151 u32 status_blk_num; 152 u32 status_blk_num2; 153 u32 irq_flags; 154 #define CNIC_IRQ_FL_MSIX 0x00000001 155 }; 156 157 struct cnic_eth_dev { 158 struct module *drv_owner; 159 u32 drv_state; 160 #define CNIC_DRV_STATE_REGD 0x00000001 161 #define CNIC_DRV_STATE_USING_MSIX 0x00000002 162 #define CNIC_DRV_STATE_NO_ISCSI_OOO 0x00000004 163 #define CNIC_DRV_STATE_NO_ISCSI 0x00000008 164 #define CNIC_DRV_STATE_NO_FCOE 0x00000010 165 u32 chip_id; 166 u32 max_kwqe_pending; 167 struct pci_dev *pdev; 168 void __iomem *io_base; 169 void __iomem *io_base2; 170 void *iro_arr; 171 172 u32 ctx_tbl_offset; 173 u32 ctx_tbl_len; 174 int ctx_blk_size; 175 u32 starting_cid; 176 u32 max_iscsi_conn; 177 u32 max_fcoe_conn; 178 u32 max_rdma_conn; 179 u32 fcoe_init_cid; 180 u16 iscsi_l2_client_id; 181 u16 iscsi_l2_cid; 182 u8 iscsi_mac[ETH_ALEN]; 183 184 int num_irq; 185 struct cnic_irq irq_arr[MAX_CNIC_VEC]; 186 int (*drv_register_cnic)(struct net_device *, 187 struct cnic_ops *, void *); 188 int (*drv_unregister_cnic)(struct net_device *); 189 int (*drv_submit_kwqes_32)(struct net_device *, 190 struct kwqe *[], u32); 191 int (*drv_submit_kwqes_16)(struct net_device *, 192 struct kwqe_16 *[], u32); 193 int (*drv_ctl)(struct net_device *, struct drv_ctl_info *); 194 unsigned long reserved1[2]; 195 }; 196 197 struct cnic_sockaddr { 198 union { 199 struct sockaddr_in v4; 200 struct sockaddr_in6 v6; 201 } local; 202 union { 203 struct sockaddr_in v4; 204 struct sockaddr_in6 v6; 205 } remote; 206 }; 207 208 struct cnic_sock { 209 struct cnic_dev *dev; 210 void *context; 211 u32 src_ip[4]; 212 u32 dst_ip[4]; 213 u16 src_port; 214 u16 dst_port; 215 u16 vlan_id; 216 unsigned char old_ha[6]; 217 unsigned char ha[6]; 218 u32 mtu; 219 u32 cid; 220 u32 l5_cid; 221 u32 pg_cid; 222 int ulp_type; 223 224 u32 ka_timeout; 225 u32 ka_interval; 226 u8 ka_max_probe_count; 227 u8 tos; 228 u8 ttl; 229 u8 snd_seq_scale; 230 u32 rcv_buf; 231 u32 snd_buf; 232 u32 seed; 233 234 unsigned long tcp_flags; 235 #define SK_TCP_NO_DELAY_ACK 0x1 236 #define SK_TCP_KEEP_ALIVE 0x2 237 #define SK_TCP_NAGLE 0x4 238 #define SK_TCP_TIMESTAMP 0x8 239 #define SK_TCP_SACK 0x10 240 #define SK_TCP_SEG_SCALING 0x20 241 unsigned long flags; 242 #define SK_F_INUSE 0 243 #define SK_F_OFFLD_COMPLETE 1 244 #define SK_F_OFFLD_SCHED 2 245 #define SK_F_PG_OFFLD_COMPLETE 3 246 #define SK_F_CONNECT_START 4 247 #define SK_F_IPV6 5 248 #define SK_F_CLOSING 7 249 250 atomic_t ref_count; 251 u32 state; 252 struct kwqe kwqe1; 253 struct kwqe kwqe2; 254 struct kwqe kwqe3; 255 }; 256 257 struct cnic_dev { 258 struct net_device *netdev; 259 struct pci_dev *pcidev; 260 void __iomem *regview; 261 struct list_head list; 262 263 int (*register_device)(struct cnic_dev *dev, int ulp_type, 264 void *ulp_ctx); 265 int (*unregister_device)(struct cnic_dev *dev, int ulp_type); 266 int (*submit_kwqes)(struct cnic_dev *dev, struct kwqe *wqes[], 267 u32 num_wqes); 268 int (*submit_kwqes_16)(struct cnic_dev *dev, struct kwqe_16 *wqes[], 269 u32 num_wqes); 270 271 int (*cm_create)(struct cnic_dev *, int, u32, u32, struct cnic_sock **, 272 void *); 273 int (*cm_destroy)(struct cnic_sock *); 274 int (*cm_connect)(struct cnic_sock *, struct cnic_sockaddr *); 275 int (*cm_abort)(struct cnic_sock *); 276 int (*cm_close)(struct cnic_sock *); 277 struct cnic_dev *(*cm_select_dev)(struct sockaddr_in *, int ulp_type); 278 int (*iscsi_nl_msg_recv)(struct cnic_dev *dev, u32 msg_type, 279 char *data, u16 data_size); 280 unsigned long flags; 281 #define CNIC_F_CNIC_UP 1 282 #define CNIC_F_BNX2_CLASS 3 283 #define CNIC_F_BNX2X_CLASS 4 284 atomic_t ref_count; 285 u8 mac_addr[6]; 286 287 int max_iscsi_conn; 288 int max_fcoe_conn; 289 int max_rdma_conn; 290 291 void *cnic_priv; 292 }; 293 294 #define CNIC_WR(dev, off, val) writel(val, dev->regview + off) 295 #define CNIC_WR16(dev, off, val) writew(val, dev->regview + off) 296 #define CNIC_WR8(dev, off, val) writeb(val, dev->regview + off) 297 #define CNIC_RD(dev, off) readl(dev->regview + off) 298 #define CNIC_RD16(dev, off) readw(dev->regview + off) 299 300 struct cnic_ulp_ops { 301 /* Calls to these functions are protected by RCU. When 302 * unregistering, we wait for any calls to complete before 303 * continuing. 304 */ 305 306 void (*cnic_init)(struct cnic_dev *dev); 307 void (*cnic_exit)(struct cnic_dev *dev); 308 void (*cnic_start)(void *ulp_ctx); 309 void (*cnic_stop)(void *ulp_ctx); 310 void (*indicate_kcqes)(void *ulp_ctx, struct kcqe *cqes[], 311 u32 num_cqes); 312 void (*indicate_netevent)(void *ulp_ctx, unsigned long event); 313 void (*cm_connect_complete)(struct cnic_sock *); 314 void (*cm_close_complete)(struct cnic_sock *); 315 void (*cm_abort_complete)(struct cnic_sock *); 316 void (*cm_remote_close)(struct cnic_sock *); 317 void (*cm_remote_abort)(struct cnic_sock *); 318 int (*iscsi_nl_send_msg)(void *ulp_ctx, u32 msg_type, 319 char *data, u16 data_size); 320 struct module *owner; 321 atomic_t ref_count; 322 }; 323 324 extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops); 325 326 extern int cnic_unregister_driver(int ulp_type); 327 328 extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev); 329 extern struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev); 330 331 #endif 332