1 /* 2 * This file is part of the Chelsio T4 Ethernet driver for Linux. 3 * 4 * Copyright (c) 2003-2014 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_VALUES_H__ 36 #define __T4_VALUES_H__ 37 38 /* This file contains definitions for various T4 register value hardware 39 * constants. The types of values encoded here are predominantly those for 40 * register fields which control "modal" behavior. For the most part, we do 41 * not include definitions for register fields which are simple numeric 42 * metrics, etc. 43 */ 44 45 /* SGE register field values. 46 */ 47 48 /* CONTROL1 register */ 49 #define RXPKTCPLMODE_SPLIT_X 1 50 51 #define INGPCIEBOUNDARY_SHIFT_X 5 52 #define INGPCIEBOUNDARY_32B_X 0 53 54 #define INGPADBOUNDARY_SHIFT_X 5 55 56 #define T6_INGPADBOUNDARY_SHIFT_X 3 57 #define T6_INGPADBOUNDARY_8B_X 0 58 #define T6_INGPADBOUNDARY_32B_X 2 59 60 #define INGPADBOUNDARY_32B_X 0 61 62 /* CONTROL2 register */ 63 #define INGPACKBOUNDARY_SHIFT_X 5 64 #define INGPACKBOUNDARY_16B_X 0 65 #define INGPACKBOUNDARY_64B_X 1 66 67 /* GTS register */ 68 #define SGE_TIMERREGS 6 69 #define TIMERREG_COUNTER0_X 0 70 71 #define FETCHBURSTMIN_64B_X 2 72 #define FETCHBURSTMIN_128B_X 3 73 74 /* T6 and later use a single-bit encoding for FetchBurstMin */ 75 #define FETCHBURSTMIN_64B_T6_X 0 76 #define FETCHBURSTMIN_128B_T6_X 1 77 78 #define FETCHBURSTMAX_256B_X 2 79 #define FETCHBURSTMAX_512B_X 3 80 81 #define HOSTFCMODE_INGRESS_QUEUE_X 1 82 #define HOSTFCMODE_STATUS_PAGE_X 2 83 84 #define CIDXFLUSHTHRESH_32_X 5 85 #define CIDXFLUSHTHRESH_128_X 7 86 87 #define UPDATEDELIVERY_INTERRUPT_X 1 88 89 #define RSPD_TYPE_FLBUF_X 0 90 #define RSPD_TYPE_CPL_X 1 91 #define RSPD_TYPE_INTR_X 2 92 93 /* Congestion Manager Definitions. 94 */ 95 #define CONMCTXT_CNGTPMODE_S 19 96 #define CONMCTXT_CNGTPMODE_V(x) ((x) << CONMCTXT_CNGTPMODE_S) 97 #define CONMCTXT_CNGCHMAP_S 0 98 #define CONMCTXT_CNGCHMAP_V(x) ((x) << CONMCTXT_CNGCHMAP_S) 99 #define CONMCTXT_CNGTPMODE_CHANNEL_X 2 100 #define CONMCTXT_CNGTPMODE_QUEUE_X 1 101 102 /* T5 and later support a new BAR2-based doorbell mechanism for Egress Queues. 103 * The User Doorbells are each 128 bytes in length with a Simple Doorbell at 104 * offsets 8x and a Write Combining single 64-byte Egress Queue Unit 105 * (IDXSIZE_UNIT_X) Gather Buffer interface at offset 64. For Ingress Queues, 106 * we have a Going To Sleep register at offsets 8x+4. 107 * 108 * As noted above, we have many instances of the Simple Doorbell and Going To 109 * Sleep registers at offsets 8x and 8x+4, respectively. We want to use a 110 * non-64-byte aligned offset for the Simple Doorbell in order to attempt to 111 * avoid buffering of the writes to the Simple Doorbell and we want to use a 112 * non-contiguous offset for the Going To Sleep writes in order to avoid 113 * possible combining between them. 114 */ 115 #define SGE_UDB_SIZE 128 116 #define SGE_UDB_KDOORBELL 8 117 #define SGE_UDB_GTS 20 118 #define SGE_UDB_WCDOORBELL 64 119 120 /* CIM register field values. 121 */ 122 #define X_MBOWNER_FW 1 123 #define X_MBOWNER_PL 2 124 125 /* PCI-E definitions */ 126 #define WINDOW_SHIFT_X 10 127 #define PCIEOFST_SHIFT_X 10 128 129 /* TP_VLAN_PRI_MAP controls which subset of fields will be present in the 130 * Compressed Filter Tuple for LE filters. Each bit set in TP_VLAN_PRI_MAP 131 * selects for a particular field being present. These fields, when present 132 * in the Compressed Filter Tuple, have the following widths in bits. 133 */ 134 #define FT_FCOE_W 1 135 #define FT_PORT_W 3 136 #define FT_VNIC_ID_W 17 137 #define FT_VLAN_W 17 138 #define FT_TOS_W 8 139 #define FT_PROTOCOL_W 8 140 #define FT_ETHERTYPE_W 16 141 #define FT_MACMATCH_W 9 142 #define FT_MPSHITTYPE_W 3 143 #define FT_FRAGMENTATION_W 1 144 145 /* Some of the Compressed Filter Tuple fields have internal structure. These 146 * bit shifts/masks describe those structures. All shifts are relative to the 147 * base position of the fields within the Compressed Filter Tuple 148 */ 149 #define FT_VLAN_VLD_S 16 150 #define FT_VLAN_VLD_V(x) ((x) << FT_VLAN_VLD_S) 151 #define FT_VLAN_VLD_F FT_VLAN_VLD_V(1U) 152 153 #define FT_VNID_ID_VF_S 0 154 #define FT_VNID_ID_VF_V(x) ((x) << FT_VNID_ID_VF_S) 155 156 #define FT_VNID_ID_PF_S 7 157 #define FT_VNID_ID_PF_V(x) ((x) << FT_VNID_ID_PF_S) 158 159 #define FT_VNID_ID_VLD_S 16 160 #define FT_VNID_ID_VLD_V(x) ((x) << FT_VNID_ID_VLD_S) 161 162 #endif /* __T4_VALUES_H__ */ 163