chelsio/cxgb4/t4_values.h

0001 /*
0002  * This file is part of the Chelsio T4 Ethernet driver for Linux.
0003  *
0004  * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
0005  *
0006  * This software is available to you under a choice of one of two
0007  * licenses.  You may choose to be licensed under the terms of the GNU
0008  * General Public License (GPL) Version 2, available from the file
0009  * COPYING in the main directory of this source tree, or the
0010  * OpenIB.org BSD license below:
0011  *
0012  *     Redistribution and use in source and binary forms, with or
0013  *     without modification, are permitted provided that the following
0014  *     conditions are met:
0015  *
0016  *      - Redistributions of source code must retain the above
0017  *        copyright notice, this list of conditions and the following
0018  *        disclaimer.
0019  *
0020  *      - Redistributions in binary form must reproduce the above
0021  *        copyright notice, this list of conditions and the following
0022  *        disclaimer in the documentation and/or other materials
0023  *        provided with the distribution.
0024  *
0025  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0026  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0027  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0028  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
0029  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
0030  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
0031  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0032  * SOFTWARE.
0033  */
0034
0035 #ifndef __T4_VALUES_H__
0036 #define __T4_VALUES_H__
0037
0038 /* This file contains definitions for various T4 register value hardware
0039  * constants.  The types of values encoded here are predominantly those for
0040  * register fields which control "modal" behavior.  For the most part, we do
0041  * not include definitions for register fields which are simple numeric
0042  * metrics, etc.
0043  */
0044
0045 /* SGE register field values.
0046  */
0047
0048 /* CONTROL1 register */
0049 #define RXPKTCPLMODE_SPLIT_X        1
0050
0051 #define INGPCIEBOUNDARY_SHIFT_X     5
0052 #define INGPCIEBOUNDARY_32B_X       0
0053
0054 #define INGPADBOUNDARY_SHIFT_X      5
0055
0056 #define T6_INGPADBOUNDARY_SHIFT_X   3
0057 #define T6_INGPADBOUNDARY_8B_X      0
0058 #define T6_INGPADBOUNDARY_32B_X     2
0059
0060 #define INGPADBOUNDARY_32B_X        0
0061
0062 /* CONTROL2 register */
0063 #define INGPACKBOUNDARY_SHIFT_X     5
0064 #define INGPACKBOUNDARY_16B_X       0
0065 #define INGPACKBOUNDARY_64B_X       1
0066
0067 /* GTS register */
0068 #define SGE_TIMERREGS           6
0069 #define TIMERREG_COUNTER0_X     0
0070
0071 #define FETCHBURSTMIN_64B_X     2
0072 #define FETCHBURSTMIN_128B_X        3
0073
0074 /* T6 and later use a single-bit encoding for FetchBurstMin */
0075 #define FETCHBURSTMIN_64B_T6_X      0
0076 #define FETCHBURSTMIN_128B_T6_X     1
0077
0078 #define FETCHBURSTMAX_256B_X        2
0079 #define FETCHBURSTMAX_512B_X        3
0080
0081 #define HOSTFCMODE_INGRESS_QUEUE_X  1
0082 #define HOSTFCMODE_STATUS_PAGE_X    2
0083
0084 #define CIDXFLUSHTHRESH_32_X        5
0085 #define CIDXFLUSHTHRESH_128_X       7
0086
0087 #define UPDATEDELIVERY_INTERRUPT_X  1
0088
0089 #define RSPD_TYPE_FLBUF_X       0
0090 #define RSPD_TYPE_CPL_X         1
0091 #define RSPD_TYPE_INTR_X        2
0092
0093 /* Congestion Manager Definitions.
0094  */
0095 #define CONMCTXT_CNGTPMODE_S        19
0096 #define CONMCTXT_CNGTPMODE_V(x)     ((x) << CONMCTXT_CNGTPMODE_S)
0097 #define CONMCTXT_CNGCHMAP_S     0
0098 #define CONMCTXT_CNGCHMAP_V(x)      ((x) << CONMCTXT_CNGCHMAP_S)
0099 #define CONMCTXT_CNGTPMODE_CHANNEL_X    2
0100 #define CONMCTXT_CNGTPMODE_QUEUE_X  1
0101
0102 /* T5 and later support a new BAR2-based doorbell mechanism for Egress Queues.
0103  * The User Doorbells are each 128 bytes in length with a Simple Doorbell at
0104  * offsets 8x and a Write Combining single 64-byte Egress Queue Unit
0105  * (IDXSIZE_UNIT_X) Gather Buffer interface at offset 64.  For Ingress Queues,
0106  * we have a Going To Sleep register at offsets 8x+4.
0107  *
0108  * As noted above, we have many instances of the Simple Doorbell and Going To
0109  * Sleep registers at offsets 8x and 8x+4, respectively.  We want to use a
0110  * non-64-byte aligned offset for the Simple Doorbell in order to attempt to
0111  * avoid buffering of the writes to the Simple Doorbell and we want to use a
0112  * non-contiguous offset for the Going To Sleep writes in order to avoid
0113  * possible combining between them.
0114  */
0115 #define SGE_UDB_SIZE        128
0116 #define SGE_UDB_KDOORBELL   8
0117 #define SGE_UDB_GTS     20
0118 #define SGE_UDB_WCDOORBELL  64
0119
0120 /* CIM register field values.
0121  */
0122 #define X_MBOWNER_FW            1
0123 #define X_MBOWNER_PL            2
0124
0125 /* PCI-E definitions */
0126 #define WINDOW_SHIFT_X      10
0127 #define PCIEOFST_SHIFT_X    10
0128
0129 /* TP_VLAN_PRI_MAP controls which subset of fields will be present in the
0130  * Compressed Filter Tuple for LE filters.  Each bit set in TP_VLAN_PRI_MAP
0131  * selects for a particular field being present.  These fields, when present
0132  * in the Compressed Filter Tuple, have the following widths in bits.
0133  */
0134 #define FT_FCOE_W                       1
0135 #define FT_PORT_W                       3
0136 #define FT_VNIC_ID_W                    17
0137 #define FT_VLAN_W                       17
0138 #define FT_TOS_W                        8
0139 #define FT_PROTOCOL_W                   8
0140 #define FT_ETHERTYPE_W                  16
0141 #define FT_MACMATCH_W                   9
0142 #define FT_MPSHITTYPE_W                 3
0143 #define FT_FRAGMENTATION_W              1
0144
0145 /* Some of the Compressed Filter Tuple fields have internal structure.  These
0146  * bit shifts/masks describe those structures.  All shifts are relative to the
0147  * base position of the fields within the Compressed Filter Tuple
0148  */
0149 #define FT_VLAN_VLD_S                   16
0150 #define FT_VLAN_VLD_V(x)                ((x) << FT_VLAN_VLD_S)
0151 #define FT_VLAN_VLD_F                   FT_VLAN_VLD_V(1U)
0152
0153 #define FT_VNID_ID_VF_S                 0
0154 #define FT_VNID_ID_VF_V(x)              ((x) << FT_VNID_ID_VF_S)
0155
0156 #define FT_VNID_ID_PF_S                 7
0157 #define FT_VNID_ID_PF_V(x)              ((x) << FT_VNID_ID_PF_S)
0158
0159 #define FT_VNID_ID_VLD_S                16
0160 #define FT_VNID_ID_VLD_V(x)             ((x) << FT_VNID_ID_VLD_S)
0161
0162 #endif /* __T4_VALUES_H__ */