2 * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
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6 * General Public License (GPL) Version 2, available from the file
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8 * OpenIB.org BSD license below:
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11 * without modification, are permitted provided that the following
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15 * copyright notice, this list of conditions and the following
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23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
39 #define NES_MANAGE_APBVT_DEL 0
40 #define NES_MANAGE_APBVT_ADD 1
42 /* IETF MPA -- defines, enums, structs */
43 #define IEFT_MPA_KEY_REQ "MPA ID Req Frame"
44 #define IEFT_MPA_KEY_REP "MPA ID Rep Frame"
45 #define IETF_MPA_KEY_SIZE 16
46 #define IETF_MPA_VERSION 1
49 IETF_MPA_FLAGS_MARKERS = 0x80, /* receive Markers */
50 IETF_MPA_FLAGS_CRC = 0x40, /* receive Markers */
51 IETF_MPA_FLAGS_REJECT = 0x20, /* Reject */
54 struct ietf_mpa_frame {
55 u8 key[IETF_MPA_KEY_SIZE];
62 #define ietf_mpa_req_resp_frame ietf_mpa_frame
66 __le32 DstIpAdrIndex; /* Only most significant 5 bits are valid */
68 __be16 TcpPorts[2]; /* src is low, dest is high */
75 NES_TIMER_NODE_CLEANUP,
86 #define TCP_OPTIONS_PADDING 3
97 OPTION_NUMBER_WINDOW_SCALE,
98 OPTION_NUMBER_SACK_PERM,
100 OPTION_NUMBER_WRITE0 = 0xbc
109 struct option_windowscale {
115 union all_known_options {
117 struct option_base as_base;
118 struct option_mss as_mss;
119 struct option_windowscale as_windowscale;
122 struct nes_timer_entry {
123 struct list_head list;
124 unsigned long timetosend; /* jiffies */
132 int close_when_complete;
133 struct net_device *netdev;
136 #define NES_DEFAULT_RETRYS 64
137 #define NES_DEFAULT_RETRANS 8
138 #ifdef CONFIG_INFINIBAND_NES_DEBUG
139 #define NES_RETRY_TIMEOUT (1000*HZ/1000)
141 #define NES_RETRY_TIMEOUT (3000*HZ/1000)
143 #define NES_SHORT_TIME (10)
144 #define NES_LONG_TIME (2000*HZ/1000)
146 #define NES_CM_HASHTABLE_SIZE 1024
147 #define NES_CM_TCP_TIMER_INTERVAL 3000
148 #define NES_CM_DEFAULT_MTU 1540
149 #define NES_CM_DEFAULT_FRAME_CNT 10
150 #define NES_CM_THREAD_STACK_SIZE 256
151 #define NES_CM_DEFAULT_RCV_WND 64240 // before we know that window scaling is allowed
152 #define NES_CM_DEFAULT_RCV_WND_SCALED 256960 // after we know that window scaling is allowed
153 #define NES_CM_DEFAULT_RCV_WND_SCALE 2
154 #define NES_CM_DEFAULT_FREE_PKTS 0x000A
155 #define NES_CM_FREE_PKT_LO_WATERMARK 2
157 #define NES_CM_DEFAULT_MSS 536
159 #define NES_CM_DEF_SEQ 0x159bf75f
160 #define NES_CM_DEF_LOCAL_ID 0x3b47
162 #define NES_CM_DEF_SEQ2 0x18ed5740
163 #define NES_CM_DEF_LOCAL_ID2 0xb807
165 typedef u32 nes_addr_t;
167 #define nes_cm_tsa_context nes_qp_context
171 /* cm node transition states */
172 enum nes_cm_node_state {
173 NES_CM_STATE_UNKNOWN,
175 NES_CM_STATE_LISTENING,
176 NES_CM_STATE_SYN_RCVD,
177 NES_CM_STATE_SYN_SENT,
178 NES_CM_STATE_ONE_SIDE_ESTABLISHED,
179 NES_CM_STATE_ESTABLISHED,
180 NES_CM_STATE_ACCEPTING,
181 NES_CM_STATE_MPAREQ_SENT,
182 NES_CM_STATE_MPAREQ_RCVD,
184 NES_CM_STATE_FIN_WAIT1,
185 NES_CM_STATE_FIN_WAIT2,
186 NES_CM_STATE_CLOSE_WAIT,
187 NES_CM_STATE_TIME_WAIT,
188 NES_CM_STATE_LAST_ACK,
189 NES_CM_STATE_CLOSING,
193 enum nes_tcpip_pkt_type {
194 NES_PKT_TYPE_UNKNOWN,
203 /* type of nes connection */
204 enum nes_cm_conn_type {
205 NES_CM_IWARP_CONN_TYPE,
208 /* CM context params */
209 struct nes_cm_tcp_context {
228 struct nes_cm_tsa_context tsa_cntxt;
229 struct timeval sent_ts;
233 enum nes_cm_listener_state {
234 NES_CM_LISTENER_PASSIVE_STATE=1,
235 NES_CM_LISTENER_ACTIVE_STATE=2,
236 NES_CM_LISTENER_EITHER_STATE=3
239 struct nes_cm_listener {
240 struct list_head list;
241 struct nes_cm_core *cm_core;
242 u8 loc_mac[ETH_ALEN];
245 struct iw_cm_id *cm_id;
246 enum nes_cm_conn_type conn_type;
248 struct nes_vnic *nesvnic;
249 atomic_t pend_accepts_cnt;
251 enum nes_cm_listener_state listener_state;
255 /* per connection node and node state information */
259 nes_addr_t loc_addr, rem_addr;
260 u16 loc_port, rem_port;
262 u8 loc_mac[ETH_ALEN];
263 u8 rem_mac[ETH_ALEN];
265 enum nes_cm_node_state state;
266 struct nes_cm_tcp_context tcp_cntxt;
267 struct nes_cm_core *cm_core;
268 struct sk_buff_head resend_list;
270 struct net_device *netdev;
272 struct nes_cm_node *loopbackpartner;
274 struct nes_timer_entry *send_entry;
276 spinlock_t retrans_list_lock;
277 struct list_head recv_list;
278 spinlock_t recv_list_lock;
282 struct ietf_mpa_frame mpa_frame;
283 u8 mpa_frame_buf[NES_CM_DEFAULT_MTU];
286 struct iw_cm_id *cm_id;
287 struct list_head list;
289 struct nes_cm_listener *listener;
290 enum nes_cm_conn_type conn_type;
291 struct nes_vnic *nesvnic;
295 struct nes_qp *nesqp;
298 /* structure for client or CM to fill when making CM api calls. */
299 /* - only need to set relevant data, based on op. */
302 struct iw_cm_id *cm_id;
303 struct net_device *netdev;
311 enum nes_cm_conn_type conn_type;
316 enum nes_cm_event_type {
317 NES_CM_EVENT_UNKNOWN,
318 NES_CM_EVENT_ESTABLISHED,
319 NES_CM_EVENT_MPA_REQ,
320 NES_CM_EVENT_MPA_CONNECT,
321 NES_CM_EVENT_MPA_ACCEPT,
322 NES_CM_EVENT_MPA_ESTABLISHED,
323 NES_CM_EVENT_CONNECTED,
326 NES_CM_EVENT_DROPPED_PKT,
327 NES_CM_EVENT_CLOSE_IMMED,
328 NES_CM_EVENT_CLOSE_HARD,
329 NES_CM_EVENT_CLOSE_CLEAN,
330 NES_CM_EVENT_ABORTED,
331 NES_CM_EVENT_SEND_FIRST
334 /* event to post to CM event handler */
335 struct nes_cm_event {
336 enum nes_cm_event_type type;
338 struct nes_cm_info cm_info;
339 struct work_struct event_work;
340 struct nes_cm_node *cm_node;
344 enum nes_cm_node_state state;
346 atomic_t listen_node_cnt;
347 struct nes_cm_node listen_list;
348 spinlock_t listen_list_lock;
353 struct sk_buff_head tx_free_list;
354 atomic_t ht_node_cnt;
355 struct list_head connected_nodes;
356 /* struct list_head hashtable[NES_CM_HASHTABLE_SIZE]; */
359 struct timer_list tcp_timer;
361 struct nes_cm_ops *api;
363 int (*post_event)(struct nes_cm_event *event);
364 atomic_t events_posted;
365 struct workqueue_struct *event_wq;
366 struct workqueue_struct *disconn_wq;
369 u64 aborted_connects;
372 struct nes_cm_node *current_listen_node;
376 #define NES_CM_SET_PKT_SIZE (1 << 1)
377 #define NES_CM_SET_FREE_PKT_Q_SIZE (1 << 2)
379 /* CM ops/API for client interface */
381 int (*accelerated)(struct nes_cm_core *, struct nes_cm_node *);
382 struct nes_cm_listener * (*listen)(struct nes_cm_core *, struct nes_vnic *,
383 struct nes_cm_info *);
384 int (*stop_listener)(struct nes_cm_core *, struct nes_cm_listener *);
385 struct nes_cm_node * (*connect)(struct nes_cm_core *,
386 struct nes_vnic *, u16, void *,
387 struct nes_cm_info *);
388 int (*close)(struct nes_cm_core *, struct nes_cm_node *);
389 int (*accept)(struct nes_cm_core *, struct ietf_mpa_frame *,
390 struct nes_cm_node *);
391 int (*reject)(struct nes_cm_core *, struct ietf_mpa_frame *,
392 struct nes_cm_node *);
393 void (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *,
395 int (*destroy_cm_core)(struct nes_cm_core *);
396 int (*get)(struct nes_cm_core *);
397 int (*set)(struct nes_cm_core *, u32, u32);
400 int schedule_nes_timer(struct nes_cm_node *, struct sk_buff *,
401 enum nes_timer_type, int, int);
403 int nes_cm_disconn(struct nes_qp *);
405 int nes_accept(struct iw_cm_id *, struct iw_cm_conn_param *);
406 int nes_reject(struct iw_cm_id *, const void *, u8);
407 int nes_connect(struct iw_cm_id *, struct iw_cm_conn_param *);
408 int nes_create_listen(struct iw_cm_id *, int);
409 int nes_destroy_listen(struct iw_cm_id *);
411 int nes_cm_recv(struct sk_buff *, struct net_device *);
412 int nes_cm_start(void);
413 int nes_cm_stop(void);
415 #endif /* NES_CM_H */