include/linux/mlx4/device.h

   1 /*
   2  * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #ifndef MLX4_DEVICE_H
  34 #define MLX4_DEVICE_H
  35
  36 #include <linux/pci.h>
  37 #include <linux/completion.h>
  38 #include <linux/radix-tree.h>
  39
  40 #include <asm/atomic.h>
  41
  42 enum {
  43         MLX4_FLAG_MSI_X         = 1 << 0,
  44 };
  45
  46 enum {
  47         MLX4_MAX_PORTS          = 2
  48 };
  49
  50 enum {
  51         MLX4_DEV_CAP_FLAG_RC            = 1 <<  0,
  52         MLX4_DEV_CAP_FLAG_UC            = 1 <<  1,
  53         MLX4_DEV_CAP_FLAG_UD            = 1 <<  2,
  54         MLX4_DEV_CAP_FLAG_SRQ           = 1 <<  6,
  55         MLX4_DEV_CAP_FLAG_IPOIB_CSUM    = 1 <<  7,
  56         MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 <<  8,
  57         MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 <<  9,
  58         MLX4_DEV_CAP_FLAG_MEM_WINDOW    = 1 << 16,
  59         MLX4_DEV_CAP_FLAG_APM           = 1 << 17,
  60         MLX4_DEV_CAP_FLAG_ATOMIC        = 1 << 18,
  61         MLX4_DEV_CAP_FLAG_RAW_MCAST     = 1 << 19,
  62         MLX4_DEV_CAP_FLAG_UD_AV_PORT    = 1 << 20,
  63         MLX4_DEV_CAP_FLAG_UD_MCAST      = 1 << 21
  64 };
  65
  66 enum mlx4_event {
  67         MLX4_EVENT_TYPE_COMP               = 0x00,
  68         MLX4_EVENT_TYPE_PATH_MIG           = 0x01,
  69         MLX4_EVENT_TYPE_COMM_EST           = 0x02,
  70         MLX4_EVENT_TYPE_SQ_DRAINED         = 0x03,
  71         MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE    = 0x13,
  72         MLX4_EVENT_TYPE_SRQ_LIMIT          = 0x14,
  73         MLX4_EVENT_TYPE_CQ_ERROR           = 0x04,
  74         MLX4_EVENT_TYPE_WQ_CATAS_ERROR     = 0x05,
  75         MLX4_EVENT_TYPE_EEC_CATAS_ERROR    = 0x06,
  76         MLX4_EVENT_TYPE_PATH_MIG_FAILED    = 0x07,
  77         MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
  78         MLX4_EVENT_TYPE_WQ_ACCESS_ERROR    = 0x11,
  79         MLX4_EVENT_TYPE_SRQ_CATAS_ERROR    = 0x12,
  80         MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR  = 0x08,
  81         MLX4_EVENT_TYPE_PORT_CHANGE        = 0x09,
  82         MLX4_EVENT_TYPE_EQ_OVERFLOW        = 0x0f,
  83         MLX4_EVENT_TYPE_ECC_DETECT         = 0x0e,
  84         MLX4_EVENT_TYPE_CMD                = 0x0a
  85 };
  86
  87 enum {
  88         MLX4_PORT_CHANGE_SUBTYPE_DOWN   = 1,
  89         MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
  90 };
  91
  92 enum {
  93         MLX4_PERM_LOCAL_READ    = 1 << 10,
  94         MLX4_PERM_LOCAL_WRITE   = 1 << 11,
  95         MLX4_PERM_REMOTE_READ   = 1 << 12,
  96         MLX4_PERM_REMOTE_WRITE  = 1 << 13,
  97         MLX4_PERM_ATOMIC        = 1 << 14
  98 };
  99
 100 enum {
 101         MLX4_OPCODE_NOP                 = 0x00,
 102         MLX4_OPCODE_SEND_INVAL          = 0x01,
 103         MLX4_OPCODE_RDMA_WRITE          = 0x08,
 104         MLX4_OPCODE_RDMA_WRITE_IMM      = 0x09,
 105         MLX4_OPCODE_SEND                = 0x0a,
 106         MLX4_OPCODE_SEND_IMM            = 0x0b,
 107         MLX4_OPCODE_LSO                 = 0x0e,
 108         MLX4_OPCODE_RDMA_READ           = 0x10,
 109         MLX4_OPCODE_ATOMIC_CS           = 0x11,
 110         MLX4_OPCODE_ATOMIC_FA           = 0x12,
 111         MLX4_OPCODE_ATOMIC_MASK_CS      = 0x14,
 112         MLX4_OPCODE_ATOMIC_MASK_FA      = 0x15,
 113         MLX4_OPCODE_BIND_MW             = 0x18,
 114         MLX4_OPCODE_FMR                 = 0x19,
 115         MLX4_OPCODE_LOCAL_INVAL         = 0x1b,
 116         MLX4_OPCODE_CONFIG_CMD          = 0x1f,
 117
 118         MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
 119         MLX4_RECV_OPCODE_SEND           = 0x01,
 120         MLX4_RECV_OPCODE_SEND_IMM       = 0x02,
 121         MLX4_RECV_OPCODE_SEND_INVAL     = 0x03,
 122
 123         MLX4_CQE_OPCODE_ERROR           = 0x1e,
 124         MLX4_CQE_OPCODE_RESIZE          = 0x16,
 125 };
 126
 127 enum {
 128         MLX4_STAT_RATE_OFFSET   = 5
 129 };
 130
 131 struct mlx4_caps {
 132         u64                     fw_ver;
 133         int                     num_ports;
 134         int                     vl_cap;
 135         int                     mtu_cap;
 136         int                     gid_table_len;
 137         int                     pkey_table_len;
 138         int                     local_ca_ack_delay;
 139         int                     num_uars;
 140         int                     bf_reg_size;
 141         int                     bf_regs_per_page;
 142         int                     max_sq_sg;
 143         int                     max_rq_sg;
 144         int                     num_qps;
 145         int                     max_wqes;
 146         int                     max_sq_desc_sz;
 147         int                     max_rq_desc_sz;
 148         int                     max_qp_init_rdma;
 149         int                     max_qp_dest_rdma;
 150         int                     reserved_qps;
 151         int                     sqp_start;
 152         int                     num_srqs;
 153         int                     max_srq_wqes;
 154         int                     max_srq_sge;
 155         int                     reserved_srqs;
 156         int                     num_cqs;
 157         int                     max_cqes;
 158         int                     reserved_cqs;
 159         int                     num_eqs;
 160         int                     reserved_eqs;
 161         int                     num_mpts;
 162         int                     num_mtt_segs;
 163         int                     fmr_reserved_mtts;
 164         int                     reserved_mtts;
 165         int                     reserved_mrws;
 166         int                     reserved_uars;
 167         int                     num_mgms;
 168         int                     num_amgms;
 169         int                     reserved_mcgs;
 170         int                     num_qp_per_mgm;
 171         int                     num_pds;
 172         int                     reserved_pds;
 173         int                     mtt_entry_sz;
 174         u32                     page_size_cap;
 175         u32                     flags;
 176         u16                     stat_rate_support;
 177         u8                      port_width_cap;
 178 };
 179
 180 struct mlx4_buf_list {
 181         void                   *buf;
 182         dma_addr_t              map;
 183 };
 184
 185 struct mlx4_buf {
 186         union {
 187                 struct mlx4_buf_list    direct;
 188                 struct mlx4_buf_list   *page_list;
 189         } u;
 190         int                     nbufs;
 191         int                     npages;
 192         int                     page_shift;
 193 };
 194
 195 struct mlx4_mtt {
 196         u32                     first_seg;
 197         int                     order;
 198         int                     page_shift;
 199 };
 200
 201 struct mlx4_mr {
 202         struct mlx4_mtt         mtt;
 203         u64                     iova;
 204         u64                     size;
 205         u32                     key;
 206         u32                     pd;
 207         u32                     access;
 208         int                     enabled;
 209 };
 210
 211 struct mlx4_uar {
 212         unsigned long           pfn;
 213         int                     index;
 214 };
 215
 216 struct mlx4_cq {
 217         void (*comp)            (struct mlx4_cq *);
 218         void (*event)           (struct mlx4_cq *, enum mlx4_event);
 219
 220         struct mlx4_uar        *uar;
 221
 222         u32                     cons_index;
 223
 224         __be32                 *set_ci_db;
 225         __be32                 *arm_db;
 226         int                     arm_sn;
 227
 228         int                     cqn;
 229
 230         atomic_t                refcount;
 231         struct completion       free;
 232 };
 233
 234 struct mlx4_qp {
 235         void (*event)           (struct mlx4_qp *, enum mlx4_event);
 236
 237         int                     qpn;
 238
 239         atomic_t                refcount;
 240         struct completion       free;
 241 };
 242
 243 struct mlx4_srq {
 244         void (*event)           (struct mlx4_srq *, enum mlx4_event);
 245
 246         int                     srqn;
 247         int                     max;
 248         int                     max_gs;
 249         int                     wqe_shift;
 250
 251         atomic_t                refcount;
 252         struct completion       free;
 253 };
 254
 255 struct mlx4_av {
 256         __be32                  port_pd;
 257         u8                      reserved1;
 258         u8                      g_slid;
 259         __be16                  dlid;
 260         u8                      reserved2;
 261         u8                      gid_index;
 262         u8                      stat_rate;
 263         u8                      hop_limit;
 264         __be32                  sl_tclass_flowlabel;
 265         u8                      dgid[16];
 266 };
 267
 268 struct mlx4_dev {
 269         struct pci_dev         *pdev;
 270         unsigned long           flags;
 271         struct mlx4_caps        caps;
 272         struct radix_tree_root  qp_table_tree;
 273 };
 274
 275 struct mlx4_init_port_param {
 276         int                     set_guid0;
 277         int                     set_node_guid;
 278         int                     set_si_guid;
 279         u16                     mtu;
 280         int                     port_width_cap;
 281         u16                     vl_cap;
 282         u16                     max_gid;
 283         u16                     max_pkey;
 284         u64                     guid0;
 285         u64                     node_guid;
 286         u64                     si_guid;
 287 };
 288
 289 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
 290                    struct mlx4_buf *buf);
 291 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
 292
 293 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
 294 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
 295
 296 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
 297 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
 298
 299 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
 300                   struct mlx4_mtt *mtt);
 301 void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
 302 u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
 303
 304 int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
 305                   int npages, int page_shift, struct mlx4_mr *mr);
 306 void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
 307 int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
 308 int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 309                    int start_index, int npages, u64 *page_list);
 310 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 311                        struct mlx4_buf *buf);
 312
 313 int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
 314                   struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq);
 315 void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
 316
 317 int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp);
 318 void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
 319
 320 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
 321                    u64 db_rec, struct mlx4_srq *srq);
 322 void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
 323 int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
 324
 325 int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port);
 326 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
 327
 328 int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
 329 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
 330
 331 #endif /* MLX4_DEVICE_H */