2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010 Chelsio Communications, Inc.
6 * Written by: Navdeep Parhar <np@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #ifndef __T4_OFFLOAD_H__
34 #define __T4_OFFLOAD_H__
36 #define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \
37 (w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \
38 (w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \
39 V_FW_WR_FLOWID(tid)); \
40 (w)->wr_lo = cpu_to_be64(0); \
43 #define INIT_ULPTX_WR(w, wrlen, atomic, tid) \
44 INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid)
46 #define INIT_TP_WR(w, tid) do { \
47 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \
48 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
49 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
50 V_FW_WR_FLOWID(tid)); \
51 (w)->wr.wr_lo = cpu_to_be64(0); \
54 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \
56 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
59 TAILQ_HEAD(stid_head, stid_region);
63 TAILQ_ENTRY(stid_region) link;
64 u_int used; /* # of stids used by this region */
65 u_int free; /* # of contiguous stids free right after this region */
69 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
71 #define MAX_ATIDS 8192U
75 union aopen_entry *next;
79 * Holds the size, base address, free list start, etc of the TID, server TID,
80 * and active-open TID tables. The tables themselves are allocated dynamically.
87 struct mtx stid_lock __aligned(CACHE_LINE_SIZE);
88 struct listen_ctx **stid_tab;
92 u_int nstids_free_head; /* # of available stids at the beginning */
93 struct stid_head stids;
95 struct mtx atid_lock __aligned(CACHE_LINE_SIZE);
96 union aopen_entry *atid_tab;
98 union aopen_entry *afree;
101 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE);
102 struct filter_entry *ftid_tab;
107 struct mtx etid_lock __aligned(CACHE_LINE_SIZE);
108 struct etid_entry *etid_tab;
118 struct t4_virt_res { /* virtualized HW resources */
120 struct t4_range iscsi;
121 struct t4_range stag;
141 SLIST_ENTRY(uld_info) link;
144 int (*activate)(struct adapter *);
145 int (*deactivate)(struct adapter *);
148 struct tom_tunables {
156 /* iWARP driver tunables */
161 int t4_register_uld(struct uld_info *);
162 int t4_unregister_uld(struct uld_info *);
163 int t4_activate_uld(struct adapter *, int);
164 int t4_deactivate_uld(struct adapter *, int);
165 int uld_active(struct adapter *, int);