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39 #define NES_MANAGE_APBVT_DEL 0
40 #define NES_MANAGE_APBVT_ADD 1
42 #define NES_MPA_REQUEST_ACCEPT 1
43 #define NES_MPA_REQUEST_REJECT 2
45 /* IETF MPA -- defines, enums, structs */
46 #define IEFT_MPA_KEY_REQ "MPA ID Req Frame"
47 #define IEFT_MPA_KEY_REP "MPA ID Rep Frame"
48 #define IETF_MPA_KEY_SIZE 16
49 #define IETF_MPA_VERSION 1
50 #define IETF_MAX_PRIV_DATA_LEN 512
51 #define IETF_MPA_FRAME_SIZE 20
54 IETF_MPA_FLAGS_MARKERS = 0x80, /* receive Markers */
55 IETF_MPA_FLAGS_CRC = 0x40, /* receive Markers */
56 IETF_MPA_FLAGS_REJECT = 0x20, /* Reject */
59 struct ietf_mpa_frame {
60 u8 key[IETF_MPA_KEY_SIZE];
67 #define ietf_mpa_req_resp_frame ietf_mpa_frame
71 __le32 DstIpAdrIndex; /* Only most significant 5 bits are valid */
73 __be16 TcpPorts[2]; /* src is low, dest is high */
80 NES_TIMER_NODE_CLEANUP,
84 #define NES_PASSIVE_STATE_INDICATED 0
85 #define NES_DO_NOT_SEND_RESET_EVENT 1
86 #define NES_SEND_RESET_EVENT 2
95 #define TCP_OPTIONS_PADDING 3
102 enum option_numbers {
106 OPTION_NUMBER_WINDOW_SCALE,
107 OPTION_NUMBER_SACK_PERM,
109 OPTION_NUMBER_WRITE0 = 0xbc
118 struct option_windowscale {
124 union all_known_options {
126 struct option_base as_base;
127 struct option_mss as_mss;
128 struct option_windowscale as_windowscale;
131 struct nes_timer_entry {
132 struct list_head list;
133 unsigned long timetosend; /* jiffies */
141 int close_when_complete;
142 struct net_device *netdev;
145 #define NES_DEFAULT_RETRYS 64
146 #define NES_DEFAULT_RETRANS 8
147 #ifdef CONFIG_INFINIBAND_NES_DEBUG
148 #define NES_RETRY_TIMEOUT (1000*HZ/1000)
150 #define NES_RETRY_TIMEOUT (3000*HZ/1000)
152 #define NES_SHORT_TIME (10)
153 #define NES_LONG_TIME (2000*HZ/1000)
154 #define NES_MAX_TIMEOUT ((unsigned long) (12*HZ))
156 #define NES_CM_HASHTABLE_SIZE 1024
157 #define NES_CM_TCP_TIMER_INTERVAL 3000
158 #define NES_CM_DEFAULT_MTU 1540
159 #define NES_CM_DEFAULT_FRAME_CNT 10
160 #define NES_CM_THREAD_STACK_SIZE 256
161 #define NES_CM_DEFAULT_RCV_WND 64240 // before we know that window scaling is allowed
162 #define NES_CM_DEFAULT_RCV_WND_SCALED 256960 // after we know that window scaling is allowed
163 #define NES_CM_DEFAULT_RCV_WND_SCALE 2
164 #define NES_CM_DEFAULT_FREE_PKTS 0x000A
165 #define NES_CM_FREE_PKT_LO_WATERMARK 2
167 #define NES_CM_DEFAULT_MSS 536
169 #define NES_CM_DEF_SEQ 0x159bf75f
170 #define NES_CM_DEF_LOCAL_ID 0x3b47
172 #define NES_CM_DEF_SEQ2 0x18ed5740
173 #define NES_CM_DEF_LOCAL_ID2 0xb807
174 #define MAX_CM_BUFFER (IETF_MPA_FRAME_SIZE + IETF_MAX_PRIV_DATA_LEN)
177 typedef u32 nes_addr_t;
179 #define nes_cm_tsa_context nes_qp_context
183 /* cm node transition states */
184 enum nes_cm_node_state {
185 NES_CM_STATE_UNKNOWN,
187 NES_CM_STATE_LISTENING,
188 NES_CM_STATE_SYN_RCVD,
189 NES_CM_STATE_SYN_SENT,
190 NES_CM_STATE_ONE_SIDE_ESTABLISHED,
191 NES_CM_STATE_ESTABLISHED,
192 NES_CM_STATE_ACCEPTING,
193 NES_CM_STATE_MPAREQ_SENT,
194 NES_CM_STATE_MPAREQ_RCVD,
195 NES_CM_STATE_MPAREJ_RCVD,
197 NES_CM_STATE_FIN_WAIT1,
198 NES_CM_STATE_FIN_WAIT2,
199 NES_CM_STATE_CLOSE_WAIT,
200 NES_CM_STATE_TIME_WAIT,
201 NES_CM_STATE_LAST_ACK,
202 NES_CM_STATE_CLOSING,
203 NES_CM_STATE_LISTENER_DESTROYED,
207 enum nes_tcpip_pkt_type {
208 NES_PKT_TYPE_UNKNOWN,
217 /* type of nes connection */
218 enum nes_cm_conn_type {
219 NES_CM_IWARP_CONN_TYPE,
222 /* CM context params */
223 struct nes_cm_tcp_context {
242 struct nes_cm_tsa_context tsa_cntxt;
243 struct timeval sent_ts;
247 enum nes_cm_listener_state {
248 NES_CM_LISTENER_PASSIVE_STATE=1,
249 NES_CM_LISTENER_ACTIVE_STATE=2,
250 NES_CM_LISTENER_EITHER_STATE=3
253 struct nes_cm_listener {
254 struct list_head list;
255 struct nes_cm_core *cm_core;
256 u8 loc_mac[ETH_ALEN];
259 struct iw_cm_id *cm_id;
260 enum nes_cm_conn_type conn_type;
262 struct nes_vnic *nesvnic;
263 atomic_t pend_accepts_cnt;
265 enum nes_cm_listener_state listener_state;
269 /* per connection node and node state information */
271 nes_addr_t loc_addr, rem_addr;
272 u16 loc_port, rem_port;
274 u8 loc_mac[ETH_ALEN];
275 u8 rem_mac[ETH_ALEN];
277 enum nes_cm_node_state state;
278 struct nes_cm_tcp_context tcp_cntxt;
279 struct nes_cm_core *cm_core;
280 struct sk_buff_head resend_list;
282 struct net_device *netdev;
284 struct nes_cm_node *loopbackpartner;
286 struct nes_timer_entry *send_entry;
288 spinlock_t retrans_list_lock;
289 struct nes_timer_entry *recv_entry;
293 struct ietf_mpa_frame mpa_frame;
294 u8 mpa_frame_buf[MAX_CM_BUFFER];
297 struct iw_cm_id *cm_id;
298 struct list_head list;
300 struct nes_cm_listener *listener;
301 enum nes_cm_conn_type conn_type;
302 struct nes_vnic *nesvnic;
305 struct list_head timer_entry;
306 struct list_head reset_entry;
307 struct nes_qp *nesqp;
308 atomic_t passive_state;
311 /* structure for client or CM to fill when making CM api calls. */
312 /* - only need to set relevant data, based on op. */
315 struct iw_cm_id *cm_id;
316 struct net_device *netdev;
324 enum nes_cm_conn_type conn_type;
329 enum nes_cm_event_type {
330 NES_CM_EVENT_UNKNOWN,
331 NES_CM_EVENT_ESTABLISHED,
332 NES_CM_EVENT_MPA_REQ,
333 NES_CM_EVENT_MPA_CONNECT,
334 NES_CM_EVENT_MPA_ACCEPT,
335 NES_CM_EVENT_MPA_REJECT,
336 NES_CM_EVENT_MPA_ESTABLISHED,
337 NES_CM_EVENT_CONNECTED,
340 NES_CM_EVENT_DROPPED_PKT,
341 NES_CM_EVENT_CLOSE_IMMED,
342 NES_CM_EVENT_CLOSE_HARD,
343 NES_CM_EVENT_CLOSE_CLEAN,
344 NES_CM_EVENT_ABORTED,
345 NES_CM_EVENT_SEND_FIRST
348 /* event to post to CM event handler */
349 struct nes_cm_event {
350 enum nes_cm_event_type type;
352 struct nes_cm_info cm_info;
353 struct work_struct event_work;
354 struct nes_cm_node *cm_node;
358 enum nes_cm_node_state state;
360 atomic_t listen_node_cnt;
361 struct nes_cm_node listen_list;
362 spinlock_t listen_list_lock;
367 atomic_t ht_node_cnt;
368 struct list_head connected_nodes;
369 /* struct list_head hashtable[NES_CM_HASHTABLE_SIZE]; */
372 struct timer_list tcp_timer;
374 struct nes_cm_ops *api;
376 int (*post_event)(struct nes_cm_event *event);
377 atomic_t events_posted;
378 struct workqueue_struct *event_wq;
379 struct workqueue_struct *disconn_wq;
382 u64 aborted_connects;
385 struct nes_cm_node *current_listen_node;
389 #define NES_CM_SET_PKT_SIZE (1 << 1)
390 #define NES_CM_SET_FREE_PKT_Q_SIZE (1 << 2)
392 /* CM ops/API for client interface */
394 int (*accelerated)(struct nes_cm_core *, struct nes_cm_node *);
395 struct nes_cm_listener * (*listen)(struct nes_cm_core *, struct nes_vnic *,
396 struct nes_cm_info *);
397 int (*stop_listener)(struct nes_cm_core *, struct nes_cm_listener *);
398 struct nes_cm_node * (*connect)(struct nes_cm_core *,
399 struct nes_vnic *, u16, void *,
400 struct nes_cm_info *);
401 int (*close)(struct nes_cm_core *, struct nes_cm_node *);
402 int (*accept)(struct nes_cm_core *, struct ietf_mpa_frame *,
403 struct nes_cm_node *);
404 int (*reject)(struct nes_cm_core *, struct ietf_mpa_frame *,
405 struct nes_cm_node *);
406 int (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *,
408 int (*destroy_cm_core)(struct nes_cm_core *);
409 int (*get)(struct nes_cm_core *);
410 int (*set)(struct nes_cm_core *, u32, u32);
413 int schedule_nes_timer(struct nes_cm_node *, struct sk_buff *,
414 enum nes_timer_type, int, int);
416 int nes_accept(struct iw_cm_id *, struct iw_cm_conn_param *);
417 int nes_reject(struct iw_cm_id *, const void *, u8);
418 int nes_connect(struct iw_cm_id *, struct iw_cm_conn_param *);
419 int nes_create_listen(struct iw_cm_id *, int);
420 int nes_destroy_listen(struct iw_cm_id *);
422 int nes_cm_recv(struct sk_buff *, struct net_device *);
423 int nes_cm_start(void);
424 int nes_cm_stop(void);
426 #endif /* NES_CM_H */