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1/*
2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
3 *
4 * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35#ifndef __T4_HW_H
36#define __T4_HW_H
37
38#include <linux/types.h>
39
40enum {
41 NCHAN = 4, /* # of HW channels */
42 MAX_MTU = 9600, /* max MAC MTU, excluding header + FCS */
43 EEPROMSIZE = 17408, /* Serial EEPROM physical size */
44 EEPROMVSIZE = 32768, /* Serial EEPROM virtual address space size */
45 RSS_NENTRIES = 2048, /* # of entries in RSS mapping table */
46 TCB_SIZE = 128, /* TCB size */
47 NMTUS = 16, /* size of MTU table */
48 NCCTRL_WIN = 32, /* # of congestion control windows */
49 NEXACT_MAC = 336, /* # of exact MAC address filters */
50 L2T_SIZE = 4096, /* # of L2T entries */
51 MBOX_LEN = 64, /* mailbox size in bytes */
52 TRACE_LEN = 112, /* length of trace data and mask */
53 FILTER_OPT_LEN = 36, /* filter tuple width for optional components */
54 NWOL_PAT = 8, /* # of WoL patterns */
55 WOL_PAT_LEN = 128, /* length of WoL patterns */
56};
57
58enum {
59 SF_PAGE_SIZE = 256, /* serial flash page size */
60 SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */
61 SF_SIZE = SF_SEC_SIZE * 16, /* serial flash size */
62};
63
64enum { RSP_TYPE_FLBUF, RSP_TYPE_CPL, RSP_TYPE_INTR }; /* response entry types */
65
66enum { MBOX_OWNER_NONE, MBOX_OWNER_FW, MBOX_OWNER_DRV }; /* mailbox owners */
67
68enum {
69 SGE_MAX_WR_LEN = 512, /* max WR size in bytes */
70 SGE_NTIMERS = 6, /* # of interrupt holdoff timer values */
71 SGE_NCOUNTERS = 4, /* # of interrupt packet counter values */
72};
73
74struct sge_qstat { /* data written to SGE queue status entries */
75 __be32 qid;
76 __be16 cidx;
77 __be16 pidx;
78};
79
80/*
81 * Structure for last 128 bits of response descriptors
82 */
83struct rsp_ctrl {
84 __be32 hdrbuflen_pidx;
85 __be32 pldbuflen_qid;
86 union {
87 u8 type_gen;
88 __be64 last_flit;
89 };
90};
91
92#define RSPD_NEWBUF 0x80000000U
93#define RSPD_LEN 0x7fffffffU
94
95#define RSPD_GEN(x) ((x) >> 7)
96#define RSPD_TYPE(x) (((x) >> 4) & 3)
97
98#define QINTR_CNT_EN 0x1
99#define QINTR_TIMER_IDX(x) ((x) << 1)
100#endif /* __T4_HW_H */