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_HW_H 36 #define __T4_HW_H 37 38 #include <linux/types.h> 39 40 enum { 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 EEPROMPFSIZE = 1024, /* EEPROM writable area size for PFn, n>0 */ 46 RSS_NENTRIES = 2048, /* # of entries in RSS mapping table */ 47 TCB_SIZE = 128, /* TCB size */ 48 NMTUS = 16, /* size of MTU table */ 49 NCCTRL_WIN = 32, /* # of congestion control windows */ 50 PM_NSTATS = 5, /* # of PM stats */ 51 T6_PM_NSTATS = 7, /* # of PM stats in T6 */ 52 MBOX_LEN = 64, /* mailbox size in bytes */ 53 TRACE_LEN = 112, /* length of trace data and mask */ 54 FILTER_OPT_LEN = 36, /* filter tuple width for optional components */ 55 }; 56 57 enum { 58 CIM_NUM_IBQ = 6, /* # of CIM IBQs */ 59 CIM_NUM_OBQ = 6, /* # of CIM OBQs */ 60 CIM_NUM_OBQ_T5 = 8, /* # of CIM OBQs for T5 adapter */ 61 CIMLA_SIZE = 2048, /* # of 32-bit words in CIM LA */ 62 CIM_PIFLA_SIZE = 64, /* # of 192-bit words in CIM PIF LA */ 63 CIM_MALA_SIZE = 64, /* # of 160-bit words in CIM MA LA */ 64 CIM_IBQ_SIZE = 128, /* # of 128-bit words in a CIM IBQ */ 65 CIM_OBQ_SIZE = 128, /* # of 128-bit words in a CIM OBQ */ 66 TPLA_SIZE = 128, /* # of 64-bit words in TP LA */ 67 ULPRX_LA_SIZE = 512, /* # of 256-bit words in ULP_RX LA */ 68 }; 69 70 enum { 71 SF_PAGE_SIZE = 256, /* serial flash page size */ 72 SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */ 73 }; 74 75 enum { RSP_TYPE_FLBUF, RSP_TYPE_CPL, RSP_TYPE_INTR }; /* response entry types */ 76 77 enum { MBOX_OWNER_NONE, MBOX_OWNER_FW, MBOX_OWNER_DRV }; /* mailbox owners */ 78 79 enum { 80 SGE_MAX_WR_LEN = 512, /* max WR size in bytes */ 81 SGE_NTIMERS = 6, /* # of interrupt holdoff timer values */ 82 SGE_NCOUNTERS = 4, /* # of interrupt packet counter values */ 83 SGE_MAX_IQ_SIZE = 65520, 84 85 SGE_TIMER_RSTRT_CNTR = 6, /* restart RX packet threshold counter */ 86 SGE_TIMER_UPD_CIDX = 7, /* update cidx only */ 87 88 SGE_EQ_IDXSIZE = 64, /* egress queue pidx/cidx unit size */ 89 90 SGE_INTRDST_PCI = 0, /* interrupt destination is PCI-E */ 91 SGE_INTRDST_IQ = 1, /* destination is an ingress queue */ 92 93 SGE_UPDATEDEL_NONE = 0, /* ingress queue pidx update delivery */ 94 SGE_UPDATEDEL_INTR = 1, /* interrupt */ 95 SGE_UPDATEDEL_STPG = 2, /* status page */ 96 SGE_UPDATEDEL_BOTH = 3, /* interrupt and status page */ 97 98 SGE_HOSTFCMODE_NONE = 0, /* egress queue cidx updates */ 99 SGE_HOSTFCMODE_IQ = 1, /* sent to ingress queue */ 100 SGE_HOSTFCMODE_STPG = 2, /* sent to status page */ 101 SGE_HOSTFCMODE_BOTH = 3, /* ingress queue and status page */ 102 103 SGE_FETCHBURSTMIN_16B = 0,/* egress queue descriptor fetch minimum */ 104 SGE_FETCHBURSTMIN_32B = 1, 105 SGE_FETCHBURSTMIN_64B = 2, 106 SGE_FETCHBURSTMIN_128B = 3, 107 108 SGE_FETCHBURSTMAX_64B = 0,/* egress queue descriptor fetch maximum */ 109 SGE_FETCHBURSTMAX_128B = 1, 110 SGE_FETCHBURSTMAX_256B = 2, 111 SGE_FETCHBURSTMAX_512B = 3, 112 113 SGE_CIDXFLUSHTHRESH_1 = 0,/* egress queue cidx flush threshold */ 114 SGE_CIDXFLUSHTHRESH_2 = 1, 115 SGE_CIDXFLUSHTHRESH_4 = 2, 116 SGE_CIDXFLUSHTHRESH_8 = 3, 117 SGE_CIDXFLUSHTHRESH_16 = 4, 118 SGE_CIDXFLUSHTHRESH_32 = 5, 119 SGE_CIDXFLUSHTHRESH_64 = 6, 120 SGE_CIDXFLUSHTHRESH_128 = 7, 121 122 SGE_INGPADBOUNDARY_SHIFT = 5,/* ingress queue pad boundary */ 123 }; 124 125 /* PCI-e memory window access */ 126 enum pcie_memwin { 127 MEMWIN_NIC = 0, 128 MEMWIN_RSVD1 = 1, 129 MEMWIN_RSVD2 = 2, 130 MEMWIN_RDMA = 3, 131 MEMWIN_RSVD4 = 4, 132 MEMWIN_FOISCSI = 5, 133 MEMWIN_CSIOSTOR = 6, 134 MEMWIN_RSVD7 = 7, 135 }; 136 137 struct sge_qstat { /* data written to SGE queue status entries */ 138 __be32 qid; 139 __be16 cidx; 140 __be16 pidx; 141 }; 142 143 /* 144 * Structure for last 128 bits of response descriptors 145 */ 146 struct rsp_ctrl { 147 __be32 hdrbuflen_pidx; 148 __be32 pldbuflen_qid; 149 union { 150 u8 type_gen; 151 __be64 last_flit; 152 }; 153 }; 154 155 #define RSPD_NEWBUF_S 31 156 #define RSPD_NEWBUF_V(x) ((x) << RSPD_NEWBUF_S) 157 #define RSPD_NEWBUF_F RSPD_NEWBUF_V(1U) 158 159 #define RSPD_LEN_S 0 160 #define RSPD_LEN_M 0x7fffffff 161 #define RSPD_LEN_G(x) (((x) >> RSPD_LEN_S) & RSPD_LEN_M) 162 163 #define RSPD_QID_S RSPD_LEN_S 164 #define RSPD_QID_M RSPD_LEN_M 165 #define RSPD_QID_G(x) RSPD_LEN_G(x) 166 167 #define RSPD_GEN_S 7 168 169 #define RSPD_TYPE_S 4 170 #define RSPD_TYPE_M 0x3 171 #define RSPD_TYPE_G(x) (((x) >> RSPD_TYPE_S) & RSPD_TYPE_M) 172 173 /* Rx queue interrupt deferral fields: counter enable and timer index */ 174 #define QINTR_CNT_EN_S 0 175 #define QINTR_CNT_EN_V(x) ((x) << QINTR_CNT_EN_S) 176 #define QINTR_CNT_EN_F QINTR_CNT_EN_V(1U) 177 178 #define QINTR_TIMER_IDX_S 1 179 #define QINTR_TIMER_IDX_M 0x7 180 #define QINTR_TIMER_IDX_V(x) ((x) << QINTR_TIMER_IDX_S) 181 #define QINTR_TIMER_IDX_G(x) (((x) >> QINTR_TIMER_IDX_S) & QINTR_TIMER_IDX_M) 182 183 /* 184 * Flash layout. 185 */ 186 #define FLASH_START(start) ((start) * SF_SEC_SIZE) 187 #define FLASH_MAX_SIZE(nsecs) ((nsecs) * SF_SEC_SIZE) 188 189 enum { 190 /* 191 * Various Expansion-ROM boot images, etc. 192 */ 193 FLASH_EXP_ROM_START_SEC = 0, 194 FLASH_EXP_ROM_NSECS = 6, 195 FLASH_EXP_ROM_START = FLASH_START(FLASH_EXP_ROM_START_SEC), 196 FLASH_EXP_ROM_MAX_SIZE = FLASH_MAX_SIZE(FLASH_EXP_ROM_NSECS), 197 198 /* 199 * iSCSI Boot Firmware Table (iBFT) and other driver-related 200 * parameters ... 201 */ 202 FLASH_IBFT_START_SEC = 6, 203 FLASH_IBFT_NSECS = 1, 204 FLASH_IBFT_START = FLASH_START(FLASH_IBFT_START_SEC), 205 FLASH_IBFT_MAX_SIZE = FLASH_MAX_SIZE(FLASH_IBFT_NSECS), 206 207 /* 208 * Boot configuration data. 209 */ 210 FLASH_BOOTCFG_START_SEC = 7, 211 FLASH_BOOTCFG_NSECS = 1, 212 FLASH_BOOTCFG_START = FLASH_START(FLASH_BOOTCFG_START_SEC), 213 FLASH_BOOTCFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_BOOTCFG_NSECS), 214 215 /* 216 * Location of firmware image in FLASH. 217 */ 218 FLASH_FW_START_SEC = 8, 219 FLASH_FW_NSECS = 16, 220 FLASH_FW_START = FLASH_START(FLASH_FW_START_SEC), 221 FLASH_FW_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FW_NSECS), 222 223 /* Location of bootstrap firmware image in FLASH. 224 */ 225 FLASH_FWBOOTSTRAP_START_SEC = 27, 226 FLASH_FWBOOTSTRAP_NSECS = 1, 227 FLASH_FWBOOTSTRAP_START = FLASH_START(FLASH_FWBOOTSTRAP_START_SEC), 228 FLASH_FWBOOTSTRAP_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FWBOOTSTRAP_NSECS), 229 230 /* 231 * iSCSI persistent/crash information. 232 */ 233 FLASH_ISCSI_CRASH_START_SEC = 29, 234 FLASH_ISCSI_CRASH_NSECS = 1, 235 FLASH_ISCSI_CRASH_START = FLASH_START(FLASH_ISCSI_CRASH_START_SEC), 236 FLASH_ISCSI_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_ISCSI_CRASH_NSECS), 237 238 /* 239 * FCoE persistent/crash information. 240 */ 241 FLASH_FCOE_CRASH_START_SEC = 30, 242 FLASH_FCOE_CRASH_NSECS = 1, 243 FLASH_FCOE_CRASH_START = FLASH_START(FLASH_FCOE_CRASH_START_SEC), 244 FLASH_FCOE_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FCOE_CRASH_NSECS), 245 246 /* 247 * Location of Firmware Configuration File in FLASH. Since the FPGA 248 * "FLASH" is smaller we need to store the Configuration File in a 249 * different location -- which will overlap the end of the firmware 250 * image if firmware ever gets that large ... 251 */ 252 FLASH_CFG_START_SEC = 31, 253 FLASH_CFG_NSECS = 1, 254 FLASH_CFG_START = FLASH_START(FLASH_CFG_START_SEC), 255 FLASH_CFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_CFG_NSECS), 256 257 /* We don't support FLASH devices which can't support the full 258 * standard set of sections which we need for normal 259 * operations. 260 */ 261 FLASH_MIN_SIZE = FLASH_CFG_START + FLASH_CFG_MAX_SIZE, 262 263 FLASH_FPGA_CFG_START_SEC = 15, 264 FLASH_FPGA_CFG_START = FLASH_START(FLASH_FPGA_CFG_START_SEC), 265 266 /* 267 * Sectors 32-63 are reserved for FLASH failover. 268 */ 269 }; 270 271 #undef FLASH_START 272 #undef FLASH_MAX_SIZE 273 274 #define SGE_TIMESTAMP_S 0 275 #define SGE_TIMESTAMP_M 0xfffffffffffffffULL 276 #define SGE_TIMESTAMP_V(x) ((__u64)(x) << SGE_TIMESTAMP_S) 277 #define SGE_TIMESTAMP_G(x) (((__u64)(x) >> SGE_TIMESTAMP_S) & SGE_TIMESTAMP_M) 278 279 #endif /* __T4_HW_H */ 280