drivers/raw/ioat/ioat_spec.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) Intel Corporation
   3  */
   4
   5 /**
   6  * \file
   7  * I/OAT specification definitions
   8  *
   9  * Taken from ioat_spec.h from SPDK project, with prefix renames and
  10  * other minor changes.
  11  */
  12
  13 #ifndef RTE_IOAT_SPEC_H
  14 #define RTE_IOAT_SPEC_H
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19
  20 #include <stdint.h>
  21
  22 #define RTE_IOAT_PCI_CHANERR_INT_OFFSET 0x180
  23
  24 #define RTE_IOAT_INTRCTRL_MASTER_INT_EN 0x01
  25
  26 #define RTE_IOAT_VER_3_0                0x30
  27 #define RTE_IOAT_VER_3_3                0x33
  28
  29 /* DMA Channel Registers */
  30 #define RTE_IOAT_CHANCTRL_CHANNEL_PRIORITY_MASK 0xF000
  31 #define RTE_IOAT_CHANCTRL_COMPL_DCA_EN          0x0200
  32 #define RTE_IOAT_CHANCTRL_CHANNEL_IN_USE                0x0100
  33 #define RTE_IOAT_CHANCTRL_DESCRIPTOR_ADDR_SNOOP_CONTROL 0x0020
  34 #define RTE_IOAT_CHANCTRL_ERR_INT_EN            0x0010
  35 #define RTE_IOAT_CHANCTRL_ANY_ERR_ABORT_EN              0x0008
  36 #define RTE_IOAT_CHANCTRL_ERR_COMPLETION_EN             0x0004
  37 #define RTE_IOAT_CHANCTRL_INT_REARM                     0x0001
  38
  39 /* DMA Channel Capabilities */
  40 #define RTE_IOAT_DMACAP_PB              (1 << 0)
  41 #define RTE_IOAT_DMACAP_DCA             (1 << 4)
  42 #define RTE_IOAT_DMACAP_BFILL           (1 << 6)
  43 #define RTE_IOAT_DMACAP_XOR             (1 << 8)
  44 #define RTE_IOAT_DMACAP_PQ              (1 << 9)
  45 #define RTE_IOAT_DMACAP_DMA_DIF (1 << 10)
  46
  47 struct rte_ioat_registers {
  48         uint8_t         chancnt;
  49         uint8_t         xfercap;
  50         uint8_t         genctrl;
  51         uint8_t         intrctrl;
  52         uint32_t        attnstatus;
  53         uint8_t         cbver;          /* 0x08 */
  54         uint8_t         reserved4[0x3]; /* 0x09 */
  55         uint16_t        intrdelay;      /* 0x0C */
  56         uint16_t        cs_status;      /* 0x0E */
  57         uint32_t        dmacapability;  /* 0x10 */
  58         uint8_t         reserved5[0x6C]; /* 0x14 */
  59         uint16_t        chanctrl;       /* 0x80 */
  60         uint8_t         reserved6[0x2]; /* 0x82 */
  61         uint8_t         chancmd;        /* 0x84 */
  62         uint8_t         reserved3[1];   /* 0x85 */
  63         uint16_t        dmacount;       /* 0x86 */
  64         uint64_t        chansts;        /* 0x88 */
  65         uint64_t        chainaddr;      /* 0x90 */
  66         uint64_t        chancmp;        /* 0x98 */
  67         uint8_t         reserved2[0x8]; /* 0xA0 */
  68         uint32_t        chanerr;        /* 0xA8 */
  69         uint32_t        chanerrmask;    /* 0xAC */
  70 } __rte_packed;
  71
  72 #define RTE_IOAT_CHANCMD_RESET                  0x20
  73 #define RTE_IOAT_CHANCMD_SUSPEND                0x04
  74
  75 #define RTE_IOAT_CHANSTS_STATUS         0x7ULL
  76 #define RTE_IOAT_CHANSTS_ACTIVE         0x0
  77 #define RTE_IOAT_CHANSTS_IDLE                   0x1
  78 #define RTE_IOAT_CHANSTS_SUSPENDED              0x2
  79 #define RTE_IOAT_CHANSTS_HALTED         0x3
  80 #define RTE_IOAT_CHANSTS_ARMED                  0x4
  81
  82 #define RTE_IOAT_CHANSTS_UNAFFILIATED_ERROR     0x8ULL
  83 #define RTE_IOAT_CHANSTS_SOFT_ERROR             0x10ULL
  84
  85 #define RTE_IOAT_CHANSTS_COMPLETED_DESCRIPTOR_MASK      (~0x3FULL)
  86
  87 #define RTE_IOAT_CHANCMP_ALIGN                  8       /* CHANCMP address must be 64-bit aligned */
  88
  89 struct rte_ioat_dma_hw_desc {
  90         uint32_t size;
  91         union {
  92                 uint32_t control_raw;
  93                 struct {
  94                         uint32_t int_enable: 1;
  95                         uint32_t src_snoop_disable: 1;
  96                         uint32_t dest_snoop_disable: 1;
  97                         uint32_t completion_update: 1;
  98                         uint32_t fence: 1;
  99                         uint32_t null: 1;
 100                         uint32_t src_page_break: 1;
 101                         uint32_t dest_page_break: 1;
 102                         uint32_t bundle: 1;
 103                         uint32_t dest_dca: 1;
 104                         uint32_t hint: 1;
 105                         uint32_t reserved: 13;
 106 #define RTE_IOAT_OP_COPY 0x00
 107                         uint32_t op: 8;
 108                 } control;
 109         } u;
 110         uint64_t src_addr;
 111         uint64_t dest_addr;
 112         uint64_t next;
 113         uint64_t reserved;
 114         uint64_t reserved2;
 115         uint64_t user1;
 116         uint64_t user2;
 117 };
 118
 119 struct rte_ioat_fill_hw_desc {
 120         uint32_t size;
 121         union {
 122                 uint32_t control_raw;
 123                 struct {
 124                         uint32_t int_enable: 1;
 125                         uint32_t reserved: 1;
 126                         uint32_t dest_snoop_disable: 1;
 127                         uint32_t completion_update: 1;
 128                         uint32_t fence: 1;
 129                         uint32_t reserved2: 2;
 130                         uint32_t dest_page_break: 1;
 131                         uint32_t bundle: 1;
 132                         uint32_t reserved3: 15;
 133 #define RTE_IOAT_OP_FILL 0x01
 134                         uint32_t op: 8;
 135                 } control;
 136         } u;
 137         uint64_t src_data;
 138         uint64_t dest_addr;
 139         uint64_t next;
 140         uint64_t reserved;
 141         uint64_t next_dest_addr;
 142         uint64_t user1;
 143         uint64_t user2;
 144 };
 145
 146 struct rte_ioat_xor_hw_desc {
 147         uint32_t size;
 148         union {
 149                 uint32_t control_raw;
 150                 struct {
 151                         uint32_t int_enable: 1;
 152                         uint32_t src_snoop_disable: 1;
 153                         uint32_t dest_snoop_disable: 1;
 154                         uint32_t completion_update: 1;
 155                         uint32_t fence: 1;
 156                         uint32_t src_count: 3;
 157                         uint32_t bundle: 1;
 158                         uint32_t dest_dca: 1;
 159                         uint32_t hint: 1;
 160                         uint32_t reserved: 13;
 161 #define RTE_IOAT_OP_XOR 0x87
 162 #define RTE_IOAT_OP_XOR_VAL 0x88
 163                         uint32_t op: 8;
 164                 } control;
 165         } u;
 166         uint64_t src_addr;
 167         uint64_t dest_addr;
 168         uint64_t next;
 169         uint64_t src_addr2;
 170         uint64_t src_addr3;
 171         uint64_t src_addr4;
 172         uint64_t src_addr5;
 173 };
 174
 175 struct rte_ioat_xor_ext_hw_desc {
 176         uint64_t src_addr6;
 177         uint64_t src_addr7;
 178         uint64_t src_addr8;
 179         uint64_t next;
 180         uint64_t reserved[4];
 181 };
 182
 183 struct rte_ioat_pq_hw_desc {
 184         uint32_t size;
 185         union {
 186                 uint32_t control_raw;
 187                 struct {
 188                         uint32_t int_enable: 1;
 189                         uint32_t src_snoop_disable: 1;
 190                         uint32_t dest_snoop_disable: 1;
 191                         uint32_t completion_update: 1;
 192                         uint32_t fence: 1;
 193                         uint32_t src_count: 3;
 194                         uint32_t bundle: 1;
 195                         uint32_t dest_dca: 1;
 196                         uint32_t hint: 1;
 197                         uint32_t p_disable: 1;
 198                         uint32_t q_disable: 1;
 199                         uint32_t reserved: 11;
 200 #define RTE_IOAT_OP_PQ 0x89
 201 #define RTE_IOAT_OP_PQ_VAL 0x8a
 202                         uint32_t op: 8;
 203                 } control;
 204         } u;
 205         uint64_t src_addr;
 206         uint64_t p_addr;
 207         uint64_t next;
 208         uint64_t src_addr2;
 209         uint64_t src_addr3;
 210         uint8_t  coef[8];
 211         uint64_t q_addr;
 212 };
 213
 214 struct rte_ioat_pq_ext_hw_desc {
 215         uint64_t src_addr4;
 216         uint64_t src_addr5;
 217         uint64_t src_addr6;
 218         uint64_t next;
 219         uint64_t src_addr7;
 220         uint64_t src_addr8;
 221         uint64_t reserved[2];
 222 };
 223
 224 struct rte_ioat_pq_update_hw_desc {
 225         uint32_t size;
 226         union {
 227                 uint32_t control_raw;
 228                 struct {
 229                         uint32_t int_enable: 1;
 230                         uint32_t src_snoop_disable: 1;
 231                         uint32_t dest_snoop_disable: 1;
 232                         uint32_t completion_update: 1;
 233                         uint32_t fence: 1;
 234                         uint32_t src_cnt: 3;
 235                         uint32_t bundle: 1;
 236                         uint32_t dest_dca: 1;
 237                         uint32_t hint: 1;
 238                         uint32_t p_disable: 1;
 239                         uint32_t q_disable: 1;
 240                         uint32_t reserved: 3;
 241                         uint32_t coef: 8;
 242 #define RTE_IOAT_OP_PQ_UP 0x8b
 243                         uint32_t op: 8;
 244                 } control;
 245         } u;
 246         uint64_t src_addr;
 247         uint64_t p_addr;
 248         uint64_t next;
 249         uint64_t src_addr2;
 250         uint64_t p_src;
 251         uint64_t q_src;
 252         uint64_t q_addr;
 253 };
 254
 255 struct rte_ioat_raw_hw_desc {
 256         uint64_t field[8];
 257 };
 258
 259 union rte_ioat_hw_desc {
 260         struct rte_ioat_raw_hw_desc raw;
 261         struct rte_ioat_generic_hw_desc generic;
 262         struct rte_ioat_dma_hw_desc dma;
 263         struct rte_ioat_fill_hw_desc fill;
 264         struct rte_ioat_xor_hw_desc xor_desc;
 265         struct rte_ioat_xor_ext_hw_desc xor_ext;
 266         struct rte_ioat_pq_hw_desc pq;
 267         struct rte_ioat_pq_ext_hw_desc pq_ext;
 268         struct rte_ioat_pq_update_hw_desc pq_update;
 269 };
 270
 271 #ifdef __cplusplus
 272 }
 273 #endif
 274
 275 #endif /* RTE_IOAT_SPEC_H */