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
49 struct 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
71 static inline void
reset_wr_list(struct toepcb * toep)72 reset_wr_list(struct toepcb *toep)
73 {
74 mbufq_init(&toep->wr_list, INT_MAX); /* XXX: sane limit needed */
75 }
76
77 static inline void
enqueue_wr(struct toepcb * toep,struct mbuf * m)78 enqueue_wr(struct toepcb *toep, struct mbuf *m)
79 {
80 (void )mbufq_enqueue(&toep->wr_list, m);
81 }
82
83 static inline struct mbuf *
peek_wr(const struct toepcb * toep)84 peek_wr(const struct toepcb *toep)
85 {
86 return (mbufq_first(&toep->wr_list));
87 }
88
89 static inline struct mbuf *
dequeue_wr(struct toepcb * toep)90 dequeue_wr(struct toepcb *toep)
91 {
92 return (mbufq_dequeue(&toep->wr_list));
93 }
94
95 #endif
96