2 * Copyright (c) 2010 Chelsio Communications, Inc.
4 * Written by: Navdeep Parhar <np@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * 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 AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #ifndef __T4_OFFLOAD_H__
32 #define __T4_OFFLOAD_H__
34 /* CPL message priority levels */
36 CPL_PRIORITY_DATA = 0, /* data messages */
37 CPL_PRIORITY_SETUP = 1, /* connection setup messages */
38 CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */
39 CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */
40 CPL_PRIORITY_ACK = 1, /* RX ACK messages */
41 CPL_PRIORITY_CONTROL = 1 /* control messages */
44 #define INIT_TP_WR(w, tid) do { \
45 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \
46 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
47 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
48 V_FW_WR_FLOWID(tid)); \
49 (w)->wr.wr_lo = cpu_to_be64(0); \
53 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
55 #define MAX_ATIDS 8192U
63 union aopen_entry *next;
67 * Holds the size, base address, free list start, etc of the TID, server TID,
68 * and active-open TID tables. The tables themselves are allocated dynamically.
74 struct serv_entry *stid_tab;
75 unsigned long *stid_bmap;
77 unsigned int stid_base;
79 union aopen_entry *atid_tab;
82 struct filter_entry *ftid_tab;
84 unsigned int ftid_base;
85 unsigned int ftids_in_use;
87 union aopen_entry *afree;
88 unsigned int atids_in_use;
90 unsigned int stids_in_use;
98 struct t4_virt_res { /* virtualized HW resources */
100 struct t4_range iscsi;
101 struct t4_range stag;