1/*-
2 * Copyright (c) 2007-2009, Chelsio Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 *    this list of conditions and the following disclaimer.
10 *
11 * 2. Neither the name of the Chelsio Corporation nor the names of its
12 *    contributors may be used to endorse or promote products derived from
13 *    this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 */
29#ifndef CXGB_TOEPCB_H_
30#define CXGB_TOEPCB_H_
31#include <sys/bus.h>
32#include <sys/condvar.h>
33#include <sys/limits.h>
34
35#define TP_DATASENT         	(1 << 0)
36#define TP_TX_WAIT_IDLE      	(1 << 1)
37#define TP_FIN_SENT          	(1 << 2)
38#define TP_ABORT_RPL_PENDING 	(1 << 3)
39#define TP_ABORT_SHUTDOWN    	(1 << 4)
40#define TP_ABORT_RPL_RCVD    	(1 << 5)
41#define TP_ABORT_REQ_RCVD    	(1 << 6)
42#define TP_ATTACHED	    	(1 << 7)
43#define TP_CPL_DONE		(1 << 8)
44#define TP_IS_A_SYNQ_ENTRY	(1 << 9)
45#define TP_ABORT_RPL_SENT	(1 << 10)
46#define TP_SEND_FIN          	(1 << 11)
47#define TP_SYNQE_EXPANDED	(1 << 12)
48
49struct toepcb {
50	TAILQ_ENTRY(toepcb) link; /* toep_list */
51	int 			tp_flags;
52	struct toedev 		*tp_tod;
53	struct l2t_entry 	*tp_l2t;
54	int			tp_tid;
55	int 			tp_wr_max;
56	int 			tp_wr_avail;
57	int 			tp_wr_unacked;
58	int 			tp_delack_mode;
59	int 			tp_ulp_mode;
60	int 			tp_qset;
61	int 			tp_enqueued;
62	int 			tp_rx_credits;
63
64	struct inpcb 		*tp_inp;
65	struct mbuf		*tp_m_last;
66
67	struct mbufq 		wr_list;
68	struct mbufq 		out_of_order_queue;
69};
70
71static inline void
72reset_wr_list(struct toepcb *toep)
73{
74	mbufq_init(&toep->wr_list, INT_MAX);	/* XXX: sane limit needed */
75}
76
77static inline void
78enqueue_wr(struct toepcb *toep, struct mbuf *m)
79{
80	(void )mbufq_enqueue(&toep->wr_list, m);
81}
82
83static inline struct mbuf *
84peek_wr(const struct toepcb *toep)
85{
86	return (mbufq_first(&toep->wr_list));
87}
88
89static inline struct mbuf *
90dequeue_wr(struct toepcb *toep)
91{
92	return (mbufq_dequeue(&toep->wr_list));
93}
94
95#endif
96