drivers/infiniband/hw/irdma/user.h

   1 /* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
   2 /* Copyright (c) 2015 - 2020 Intel Corporation */
   3 #ifndef IRDMA_USER_H
   4 #define IRDMA_USER_H
   5
   6 #define irdma_handle void *
   7 #define irdma_adapter_handle irdma_handle
   8 #define irdma_qp_handle irdma_handle
   9 #define irdma_cq_handle irdma_handle
  10 #define irdma_pd_id irdma_handle
  11 #define irdma_stag_handle irdma_handle
  12 #define irdma_stag_index u32
  13 #define irdma_stag u32
  14 #define irdma_stag_key u8
  15 #define irdma_tagged_offset u64
  16 #define irdma_access_privileges u32
  17 #define irdma_physical_fragment u64
  18 #define irdma_address_list u64 *
  19
  20 #define IRDMA_MAX_MR_SIZE       0x200000000000ULL
  21
  22 #define IRDMA_ACCESS_FLAGS_LOCALREAD            0x01
  23 #define IRDMA_ACCESS_FLAGS_LOCALWRITE           0x02
  24 #define IRDMA_ACCESS_FLAGS_REMOTEREAD_ONLY      0x04
  25 #define IRDMA_ACCESS_FLAGS_REMOTEREAD           0x05
  26 #define IRDMA_ACCESS_FLAGS_REMOTEWRITE_ONLY     0x08
  27 #define IRDMA_ACCESS_FLAGS_REMOTEWRITE          0x0a
  28 #define IRDMA_ACCESS_FLAGS_BIND_WINDOW          0x10
  29 #define IRDMA_ACCESS_FLAGS_ZERO_BASED           0x20
  30 #define IRDMA_ACCESS_FLAGS_ALL                  0x3f
  31
  32 #define IRDMA_OP_TYPE_RDMA_WRITE                0x00
  33 #define IRDMA_OP_TYPE_RDMA_READ                 0x01
  34 #define IRDMA_OP_TYPE_SEND                      0x03
  35 #define IRDMA_OP_TYPE_SEND_INV                  0x04
  36 #define IRDMA_OP_TYPE_SEND_SOL                  0x05
  37 #define IRDMA_OP_TYPE_SEND_SOL_INV              0x06
  38 #define IRDMA_OP_TYPE_RDMA_WRITE_SOL            0x0d
  39 #define IRDMA_OP_TYPE_BIND_MW                   0x08
  40 #define IRDMA_OP_TYPE_FAST_REG_NSMR             0x09
  41 #define IRDMA_OP_TYPE_INV_STAG                  0x0a
  42 #define IRDMA_OP_TYPE_RDMA_READ_INV_STAG        0x0b
  43 #define IRDMA_OP_TYPE_NOP                       0x0c
  44 #define IRDMA_OP_TYPE_REC       0x3e
  45 #define IRDMA_OP_TYPE_REC_IMM   0x3f
  46
  47 #define IRDMA_FLUSH_MAJOR_ERR   1
  48
  49 enum irdma_device_caps_const {
  50         IRDMA_WQE_SIZE =                        4,
  51         IRDMA_CQP_WQE_SIZE =                    8,
  52         IRDMA_CQE_SIZE =                        4,
  53         IRDMA_EXTENDED_CQE_SIZE =               8,
  54         IRDMA_AEQE_SIZE =                       2,
  55         IRDMA_CEQE_SIZE =                       1,
  56         IRDMA_CQP_CTX_SIZE =                    8,
  57         IRDMA_SHADOW_AREA_SIZE =                8,
  58         IRDMA_QUERY_FPM_BUF_SIZE =              176,
  59         IRDMA_COMMIT_FPM_BUF_SIZE =             176,
  60         IRDMA_GATHER_STATS_BUF_SIZE =           1024,
  61         IRDMA_MIN_IW_QP_ID =                    0,
  62         IRDMA_MAX_IW_QP_ID =                    262143,
  63         IRDMA_MIN_CEQID =                       0,
  64         IRDMA_MAX_CEQID =                       1023,
  65         IRDMA_CEQ_MAX_COUNT =                   IRDMA_MAX_CEQID + 1,
  66         IRDMA_MIN_CQID =                        0,
  67         IRDMA_MAX_CQID =                        524287,
  68         IRDMA_MIN_AEQ_ENTRIES =                 1,
  69         IRDMA_MAX_AEQ_ENTRIES =                 524287,
  70         IRDMA_MIN_CEQ_ENTRIES =                 1,
  71         IRDMA_MAX_CEQ_ENTRIES =                 262143,
  72         IRDMA_MIN_CQ_SIZE =                     1,
  73         IRDMA_MAX_CQ_SIZE =                     1048575,
  74         IRDMA_DB_ID_ZERO =                      0,
  75         IRDMA_MAX_WQ_FRAGMENT_COUNT =           13,
  76         IRDMA_MAX_SGE_RD =                      13,
  77         IRDMA_MAX_OUTBOUND_MSG_SIZE =           2147483647,
  78         IRDMA_MAX_INBOUND_MSG_SIZE =            2147483647,
  79         IRDMA_MAX_PUSH_PAGE_COUNT =             1024,
  80         IRDMA_MAX_PE_ENA_VF_COUNT =             32,
  81         IRDMA_MAX_VF_FPM_ID =                   47,
  82         IRDMA_MAX_SQ_PAYLOAD_SIZE =             2145386496,
  83         IRDMA_MAX_INLINE_DATA_SIZE =            101,
  84         IRDMA_MAX_WQ_ENTRIES =                  32768,
  85         IRDMA_Q2_BUF_SIZE =                     256,
  86         IRDMA_QP_CTX_SIZE =                     256,
  87         IRDMA_MAX_PDS =                         262144,
  88 };
  89
  90 enum irdma_addressing_type {
  91         IRDMA_ADDR_TYPE_ZERO_BASED = 0,
  92         IRDMA_ADDR_TYPE_VA_BASED   = 1,
  93 };
  94
  95 enum irdma_flush_opcode {
  96         FLUSH_INVALID = 0,
  97         FLUSH_GENERAL_ERR,
  98         FLUSH_PROT_ERR,
  99         FLUSH_REM_ACCESS_ERR,
 100         FLUSH_LOC_QP_OP_ERR,
 101         FLUSH_REM_OP_ERR,
 102         FLUSH_LOC_LEN_ERR,
 103         FLUSH_FATAL_ERR,
 104         FLUSH_RETRY_EXC_ERR,
 105         FLUSH_MW_BIND_ERR,
 106         FLUSH_REM_INV_REQ_ERR,
 107 };
 108
 109 enum irdma_cmpl_status {
 110         IRDMA_COMPL_STATUS_SUCCESS = 0,
 111         IRDMA_COMPL_STATUS_FLUSHED,
 112         IRDMA_COMPL_STATUS_INVALID_WQE,
 113         IRDMA_COMPL_STATUS_QP_CATASTROPHIC,
 114         IRDMA_COMPL_STATUS_REMOTE_TERMINATION,
 115         IRDMA_COMPL_STATUS_INVALID_STAG,
 116         IRDMA_COMPL_STATUS_BASE_BOUND_VIOLATION,
 117         IRDMA_COMPL_STATUS_ACCESS_VIOLATION,
 118         IRDMA_COMPL_STATUS_INVALID_PD_ID,
 119         IRDMA_COMPL_STATUS_WRAP_ERROR,
 120         IRDMA_COMPL_STATUS_STAG_INVALID_PDID,
 121         IRDMA_COMPL_STATUS_RDMA_READ_ZERO_ORD,
 122         IRDMA_COMPL_STATUS_QP_NOT_PRIVLEDGED,
 123         IRDMA_COMPL_STATUS_STAG_NOT_INVALID,
 124         IRDMA_COMPL_STATUS_INVALID_PHYS_BUF_SIZE,
 125         IRDMA_COMPL_STATUS_INVALID_PHYS_BUF_ENTRY,
 126         IRDMA_COMPL_STATUS_INVALID_FBO,
 127         IRDMA_COMPL_STATUS_INVALID_LEN,
 128         IRDMA_COMPL_STATUS_INVALID_ACCESS,
 129         IRDMA_COMPL_STATUS_PHYS_BUF_LIST_TOO_LONG,
 130         IRDMA_COMPL_STATUS_INVALID_VIRT_ADDRESS,
 131         IRDMA_COMPL_STATUS_INVALID_REGION,
 132         IRDMA_COMPL_STATUS_INVALID_WINDOW,
 133         IRDMA_COMPL_STATUS_INVALID_TOTAL_LEN,
 134         IRDMA_COMPL_STATUS_UNKNOWN,
 135 };
 136
 137 enum irdma_cmpl_notify {
 138         IRDMA_CQ_COMPL_EVENT     = 0,
 139         IRDMA_CQ_COMPL_SOLICITED = 1,
 140 };
 141
 142 enum irdma_qp_caps {
 143         IRDMA_WRITE_WITH_IMM = 1,
 144         IRDMA_SEND_WITH_IMM  = 2,
 145         IRDMA_ROCE           = 4,
 146         IRDMA_PUSH_MODE      = 8,
 147 };
 148
 149 struct irdma_qp_uk;
 150 struct irdma_cq_uk;
 151 struct irdma_qp_uk_init_info;
 152 struct irdma_cq_uk_init_info;
 153
 154 struct irdma_ring {
 155         u32 head;
 156         u32 tail;
 157         u32 size;
 158 };
 159
 160 struct irdma_cqe {
 161         __le64 buf[IRDMA_CQE_SIZE];
 162 };
 163
 164 struct irdma_extended_cqe {
 165         __le64 buf[IRDMA_EXTENDED_CQE_SIZE];
 166 };
 167
 168 struct irdma_post_send {
 169         struct ib_sge *sg_list;
 170         u32 num_sges;
 171         u32 qkey;
 172         u32 dest_qp;
 173         u32 ah_id;
 174 };
 175
 176 struct irdma_post_rq_info {
 177         u64 wr_id;
 178         struct ib_sge *sg_list;
 179         u32 num_sges;
 180 };
 181
 182 struct irdma_rdma_write {
 183         struct ib_sge *lo_sg_list;
 184         u32 num_lo_sges;
 185         struct ib_sge rem_addr;
 186 };
 187
 188 struct irdma_rdma_read {
 189         struct ib_sge *lo_sg_list;
 190         u32 num_lo_sges;
 191         struct ib_sge rem_addr;
 192 };
 193
 194 struct irdma_bind_window {
 195         irdma_stag mr_stag;
 196         u64 bind_len;
 197         void *va;
 198         enum irdma_addressing_type addressing_type;
 199         bool ena_reads:1;
 200         bool ena_writes:1;
 201         irdma_stag mw_stag;
 202         bool mem_window_type_1:1;
 203 };
 204
 205 struct irdma_inv_local_stag {
 206         irdma_stag target_stag;
 207 };
 208
 209 struct irdma_post_sq_info {
 210         u64 wr_id;
 211         u8 op_type;
 212         u8 l4len;
 213         bool signaled:1;
 214         bool read_fence:1;
 215         bool local_fence:1;
 216         bool inline_data:1;
 217         bool imm_data_valid:1;
 218         bool push_wqe:1;
 219         bool report_rtt:1;
 220         bool udp_hdr:1;
 221         bool defer_flag:1;
 222         u32 imm_data;
 223         u32 stag_to_inv;
 224         union {
 225                 struct irdma_post_send send;
 226                 struct irdma_rdma_write rdma_write;
 227                 struct irdma_rdma_read rdma_read;
 228                 struct irdma_bind_window bind_window;
 229                 struct irdma_inv_local_stag inv_local_stag;
 230         } op;
 231 };
 232
 233 struct irdma_cq_poll_info {
 234         u64 wr_id;
 235         irdma_qp_handle qp_handle;
 236         u32 bytes_xfered;
 237         u32 tcp_seq_num_rtt;
 238         u32 qp_id;
 239         u32 ud_src_qpn;
 240         u32 imm_data;
 241         irdma_stag inv_stag; /* or L_R_Key */
 242         enum irdma_cmpl_status comp_status;
 243         u16 major_err;
 244         u16 minor_err;
 245         u16 ud_vlan;
 246         u8 ud_smac[6];
 247         u8 op_type;
 248         u8 q_type;
 249         bool stag_invalid_set:1; /* or L_R_Key set */
 250         bool push_dropped:1;
 251         bool error:1;
 252         bool solicited_event:1;
 253         bool ipv4:1;
 254         bool ud_vlan_valid:1;
 255         bool ud_smac_valid:1;
 256         bool imm_valid:1;
 257 };
 258
 259 int irdma_uk_inline_rdma_write(struct irdma_qp_uk *qp,
 260                                struct irdma_post_sq_info *info, bool post_sq);
 261 int irdma_uk_inline_send(struct irdma_qp_uk *qp,
 262                          struct irdma_post_sq_info *info, bool post_sq);
 263 int irdma_uk_post_nop(struct irdma_qp_uk *qp, u64 wr_id, bool signaled,
 264                       bool post_sq);
 265 int irdma_uk_post_receive(struct irdma_qp_uk *qp,
 266                           struct irdma_post_rq_info *info);
 267 void irdma_uk_qp_post_wr(struct irdma_qp_uk *qp);
 268 int irdma_uk_rdma_read(struct irdma_qp_uk *qp, struct irdma_post_sq_info *info,
 269                        bool inv_stag, bool post_sq);
 270 int irdma_uk_rdma_write(struct irdma_qp_uk *qp, struct irdma_post_sq_info *info,
 271                         bool post_sq);
 272 int irdma_uk_send(struct irdma_qp_uk *qp, struct irdma_post_sq_info *info,
 273                   bool post_sq);
 274 int irdma_uk_stag_local_invalidate(struct irdma_qp_uk *qp,
 275                                    struct irdma_post_sq_info *info,
 276                                    bool post_sq);
 277
 278 struct irdma_wqe_uk_ops {
 279         void (*iw_copy_inline_data)(u8 *dest, struct ib_sge *sge_list,
 280                                     u32 num_sges, u8 polarity);
 281         u16 (*iw_inline_data_size_to_quanta)(u32 data_size);
 282         void (*iw_set_fragment)(__le64 *wqe, u32 offset, struct ib_sge *sge,
 283                                 u8 valid);
 284         void (*iw_set_mw_bind_wqe)(__le64 *wqe,
 285                                    struct irdma_bind_window *op_info);
 286 };
 287
 288 int irdma_uk_cq_poll_cmpl(struct irdma_cq_uk *cq,
 289                           struct irdma_cq_poll_info *info);
 290 void irdma_uk_cq_request_notification(struct irdma_cq_uk *cq,
 291                                       enum irdma_cmpl_notify cq_notify);
 292 void irdma_uk_cq_resize(struct irdma_cq_uk *cq, void *cq_base, int size);
 293 void irdma_uk_cq_set_resized_cnt(struct irdma_cq_uk *qp, u16 cnt);
 294 void irdma_uk_cq_init(struct irdma_cq_uk *cq,
 295                       struct irdma_cq_uk_init_info *info);
 296 int irdma_uk_qp_init(struct irdma_qp_uk *qp,
 297                      struct irdma_qp_uk_init_info *info);
 298 struct irdma_sq_uk_wr_trk_info {
 299         u64 wrid;
 300         u32 wr_len;
 301         u16 quanta;
 302         u8 reserved[2];
 303 };
 304
 305 struct irdma_qp_quanta {
 306         __le64 elem[IRDMA_WQE_SIZE];
 307 };
 308
 309 struct irdma_qp_uk {
 310         struct irdma_qp_quanta *sq_base;
 311         struct irdma_qp_quanta *rq_base;
 312         struct irdma_uk_attrs *uk_attrs;
 313         u32 __iomem *wqe_alloc_db;
 314         struct irdma_sq_uk_wr_trk_info *sq_wrtrk_array;
 315         u64 *rq_wrid_array;
 316         __le64 *shadow_area;
 317         __le32 *push_db;
 318         __le64 *push_wqe;
 319         struct irdma_ring sq_ring;
 320         struct irdma_ring rq_ring;
 321         struct irdma_ring initial_ring;
 322         u32 qp_id;
 323         u32 qp_caps;
 324         u32 sq_size;
 325         u32 rq_size;
 326         u32 max_sq_frag_cnt;
 327         u32 max_rq_frag_cnt;
 328         u32 max_inline_data;
 329         struct irdma_wqe_uk_ops wqe_ops;
 330         u16 conn_wqes;
 331         u8 qp_type;
 332         u8 swqe_polarity;
 333         u8 swqe_polarity_deferred;
 334         u8 rwqe_polarity;
 335         u8 rq_wqe_size;
 336         u8 rq_wqe_size_multiplier;
 337         bool deferred_flag:1;
 338         bool push_mode:1; /* whether the last post wqe was pushed */
 339         bool push_dropped:1;
 340         bool first_sq_wq:1;
 341         bool sq_flush_complete:1; /* Indicates flush was seen and SQ was empty after the flush */
 342         bool rq_flush_complete:1; /* Indicates flush was seen and RQ was empty after the flush */
 343         bool destroy_pending:1; /* Indicates the QP is being destroyed */
 344         void *back_qp;
 345         u8 dbg_rq_flushed;
 346         u8 sq_flush_seen;
 347         u8 rq_flush_seen;
 348 };
 349
 350 struct irdma_cq_uk {
 351         struct irdma_cqe *cq_base;
 352         u32 __iomem *cqe_alloc_db;
 353         u32 __iomem *cq_ack_db;
 354         __le64 *shadow_area;
 355         u32 cq_id;
 356         u32 cq_size;
 357         struct irdma_ring cq_ring;
 358         u8 polarity;
 359         bool avoid_mem_cflct:1;
 360 };
 361
 362 struct irdma_qp_uk_init_info {
 363         struct irdma_qp_quanta *sq;
 364         struct irdma_qp_quanta *rq;
 365         struct irdma_uk_attrs *uk_attrs;
 366         u32 __iomem *wqe_alloc_db;
 367         __le64 *shadow_area;
 368         struct irdma_sq_uk_wr_trk_info *sq_wrtrk_array;
 369         u64 *rq_wrid_array;
 370         u32 qp_id;
 371         u32 qp_caps;
 372         u32 sq_size;
 373         u32 rq_size;
 374         u32 max_sq_frag_cnt;
 375         u32 max_rq_frag_cnt;
 376         u32 max_inline_data;
 377         u8 first_sq_wq;
 378         u8 type;
 379         int abi_ver;
 380         bool legacy_mode;
 381 };
 382
 383 struct irdma_cq_uk_init_info {
 384         u32 __iomem *cqe_alloc_db;
 385         u32 __iomem *cq_ack_db;
 386         struct irdma_cqe *cq_base;
 387         __le64 *shadow_area;
 388         u32 cq_size;
 389         u32 cq_id;
 390         bool avoid_mem_cflct;
 391 };
 392
 393 __le64 *irdma_qp_get_next_send_wqe(struct irdma_qp_uk *qp, u32 *wqe_idx,
 394                                    u16 quanta, u32 total_size,
 395                                    struct irdma_post_sq_info *info);
 396 __le64 *irdma_qp_get_next_recv_wqe(struct irdma_qp_uk *qp, u32 *wqe_idx);
 397 void irdma_uk_clean_cq(void *q, struct irdma_cq_uk *cq);
 398 int irdma_nop(struct irdma_qp_uk *qp, u64 wr_id, bool signaled, bool post_sq);
 399 int irdma_fragcnt_to_quanta_sq(u32 frag_cnt, u16 *quanta);
 400 int irdma_fragcnt_to_wqesize_rq(u32 frag_cnt, u16 *wqe_size);
 401 void irdma_get_wqe_shift(struct irdma_uk_attrs *uk_attrs, u32 sge,
 402                          u32 inline_data, u8 *shift);
 403 int irdma_get_sqdepth(struct irdma_uk_attrs *uk_attrs, u32 sq_size, u8 shift,
 404                       u32 *wqdepth);
 405 int irdma_get_rqdepth(struct irdma_uk_attrs *uk_attrs, u32 rq_size, u8 shift,
 406                       u32 *wqdepth);
 407 void irdma_qp_push_wqe(struct irdma_qp_uk *qp, __le64 *wqe, u16 quanta,
 408                        u32 wqe_idx, bool post_sq);
 409 void irdma_clr_wqes(struct irdma_qp_uk *qp, u32 qp_wqe_idx);
 410 #endif /* IRDMA_USER_H */