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 #define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \
35 (w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \
36 (w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \
37 V_FW_WR_FLOWID(tid)); \
38 (w)->wr_lo = cpu_to_be64(0); \
41 #define INIT_ULPTX_WR(w, wrlen, atomic, tid) \
42 INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid)
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); \
52 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \
54 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
57 TAILQ_HEAD(stid_head, stid_region);
61 TAILQ_ENTRY(stid_region) link;
62 u_int used; /* # of stids used by this region */
63 u_int free; /* # of contiguous stids free right after this region */
67 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
69 #define MAX_ATIDS 8192U
73 union aopen_entry *next;
77 * Holds the size, base address, free list start, etc of the TID, server TID,
78 * and active-open TID tables. The tables themselves are allocated dynamically.
85 struct mtx stid_lock __aligned(CACHE_LINE_SIZE);
86 struct listen_ctx **stid_tab;
90 u_int nstids_free_head; /* # of available stids at the begining */
91 struct stid_head stids;
93 struct mtx atid_lock __aligned(CACHE_LINE_SIZE);
94 union aopen_entry *atid_tab;
96 union aopen_entry *afree;
99 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE);
100 struct filter_entry *ftid_tab;
105 struct mtx etid_lock __aligned(CACHE_LINE_SIZE);
106 struct etid_entry *etid_tab;
116 struct t4_virt_res { /* virtualized HW resources */
118 struct t4_range iscsi;
119 struct t4_range stag;
139 SLIST_ENTRY(uld_info) link;
142 int (*activate)(struct adapter *);
143 int (*deactivate)(struct adapter *);
146 struct tom_tunables {
155 int t4_register_uld(struct uld_info *);
156 int t4_unregister_uld(struct uld_info *);
157 int t4_activate_uld(struct adapter *, int);
158 int t4_deactivate_uld(struct adapter *, int);
159 void t4_iscsi_init(struct ifnet *, unsigned int, const unsigned int *);
160 int uld_active(struct adapter *, int);