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__
33 #include <sys/param.h>
35 #include <sys/condvar.h>
37 #define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \
38 (w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \
39 (w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \
40 V_FW_WR_FLOWID(tid)); \
41 (w)->wr_lo = cpu_to_be64(0); \
44 #define INIT_ULPTX_WR(w, wrlen, atomic, tid) \
45 INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid)
47 #define INIT_TP_WR(w, tid) do { \
48 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \
49 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
50 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
51 V_FW_WR_FLOWID(tid)); \
52 (w)->wr.wr_lo = cpu_to_be64(0); \
55 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \
57 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
60 TAILQ_HEAD(stid_head, stid_region);
64 TAILQ_ENTRY(stid_region) link;
65 u_int used; /* # of stids used by this region */
66 u_int free; /* # of contiguous stids free right after this region */
70 * Max # of ATIDs. The absolute HW max is 14b (enough for 16K) but we reserve
71 * the upper 3b for use as a cookie to demux the reply.
73 #define MAX_ATIDS 2048U
77 union aopen_entry *next;
81 * Holds the size, base address, start, end, etc. of various types of TIDs. The
82 * tables themselves are allocated dynamically.
105 struct mtx stid_lock __aligned(CACHE_LINE_SIZE);
106 struct listen_ctx **stid_tab;
108 u_int nstids_free_head; /* # of available stids at the beginning */
109 struct stid_head stids;
111 struct mtx atid_lock __aligned(CACHE_LINE_SIZE);
112 union aopen_entry *atid_tab;
113 union aopen_entry *afree;
116 /* High priority filters and normal filters share the lock and cv. */
117 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE);
119 struct filter_entry *ftid_tab;
120 struct filter_entry *hpftid_tab;
122 u_int hpftids_in_use;
125 * hashfilter and TOE are mutually exclusive and both use ntids and
126 * tids_in_use. The lock and cv are used only by hashfilter.
128 struct mtx hftid_lock __aligned(CACHE_LINE_SIZE);
133 void *hftid_hash_4t; /* LIST_HEAD(, filter_entry) *hftid_hash_4t; */
134 u_long hftid_4t_mask;
135 void *hftid_hash_tid; /* LIST_HEAD(, filter_entry) *hftid_hash_tid; */
136 u_long hftid_tid_mask;
144 struct t4_virt_res { /* virtualized HW resources */
146 struct t4_range iscsi;
147 struct t4_range stag;
168 SLIST_ENTRY(uld_info) link;
171 int (*activate)(struct adapter *);
172 int (*deactivate)(struct adapter *);
175 struct tom_tunables {
182 int num_tls_rx_ports;
185 int cop_managed_offloading;
187 /* iWARP driver tunables */
192 int t4_register_uld(struct uld_info *);
193 int t4_unregister_uld(struct uld_info *);
194 int t4_activate_uld(struct adapter *, int);
195 int t4_deactivate_uld(struct adapter *, int);
196 void t4_iscsi_init(struct adapter *, u_int, const u_int *);
197 int uld_active(struct adapter *, int);