mlx4_ib.h

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    1 /*
    2  * Copyright (c) 2006, 2007 Cisco Systems.  All rights reserved.
    3  * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
    4  *
    5  * This software is available to you under a choice of one of two
    6  * licenses.  You may choose to be licensed under the terms of the GNU
    7  * General Public License (GPL) Version 2, available from the file
    8  * COPYING in the main directory of this source tree, or the
    9  * OpenIB.org BSD license below:
   10  *
   11  *     Redistribution and use in source and binary forms, with or
   12  *     without modification, are permitted provided that the following
   13  *     conditions are met:
   14  *
   15  *      - Redistributions of source code must retain the above
   16  *        copyright notice, this list of conditions and the following
   17  *        disclaimer.
   18  *
   19  *      - Redistributions in binary form must reproduce the above
   20  *        copyright notice, this list of conditions and the following
   21  *        disclaimer in the documentation and/or other materials
   22  *        provided with the distribution.
   23  *
   24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   31  * SOFTWARE.
   32  */
   33 
   34 #ifndef MLX4_IB_H
   35 #define MLX4_IB_H
   36 
   37 #include <linux/compiler.h>
   38 #include <linux/list.h>
   39 #include <linux/mutex.h>
   40 #include <linux/idr.h>
   41 #include <linux/rbtree.h>
   42 #include <linux/notifier.h>
   43 
   44 #include <asm/atomic64.h>
   45 
   46 #include <rdma/ib_verbs.h>
   47 #include <rdma/ib_umem.h>
   48 #include <rdma/ib_mad.h>
   49 #include <rdma/ib_sa.h>
   50 
   51 #include <dev/mlx4/device.h>
   52 #include <dev/mlx4/doorbell.h>
   53 
   54 #define MLX4_IB_DRV_NAME        "mlx4_ib"
   55 
   56 #ifdef pr_fmt
   57 #undef pr_fmt
   58 #endif
   59 #define pr_fmt(fmt)     "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
   60 
   61 #define mlx4_ib_warn(ibdev, format, arg...) \
   62         dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
   63 
   64 enum {
   65         MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
   66         MLX4_IB_MAX_HEADROOM     = 2048
   67 };
   68 
   69 #define MLX4_IB_SQ_HEADROOM(shift)      ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
   70 #define MLX4_IB_SQ_MAX_SPARE            (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
   71 
   72 /*module param to indicate if SM assigns the alias_GUID*/
   73 extern int mlx4_ib_sm_guid_assign;
   74 extern struct proc_dir_entry *mlx4_mrs_dir_entry;
   75 
   76 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
   77 #define MLX4_IB_UC_MAX_NUM_QPS     256
   78 
   79 enum hw_bar_type {
   80         HW_BAR_BF,
   81         HW_BAR_DB,
   82         HW_BAR_CLOCK,
   83         HW_BAR_COUNT
   84 };
   85 
   86 struct mlx4_ib_ucontext {
   87         struct ib_ucontext      ibucontext;
   88         struct mlx4_uar         uar;
   89         struct list_head        db_page_list;
   90         struct mutex            db_page_mutex;
   91 };
   92 
   93 struct mlx4_ib_pd {
   94         struct ib_pd            ibpd;
   95         u32                     pdn;
   96 };
   97 
   98 struct mlx4_ib_xrcd {
   99         struct ib_xrcd          ibxrcd;
  100         u32                     xrcdn;
  101         struct ib_pd           *pd;
  102         struct ib_cq           *cq;
  103 };
  104 
  105 struct mlx4_ib_cq_buf {
  106         struct mlx4_buf         buf;
  107         struct mlx4_mtt         mtt;
  108         int                     entry_size;
  109 };
  110 
  111 struct mlx4_ib_cq_resize {
  112         struct mlx4_ib_cq_buf   buf;
  113         int                     cqe;
  114 };
  115 
  116 struct mlx4_ib_cq {
  117         struct ib_cq            ibcq;
  118         struct mlx4_cq          mcq;
  119         struct mlx4_ib_cq_buf   buf;
  120         struct mlx4_ib_cq_resize *resize_buf;
  121         struct mlx4_db          db;
  122         spinlock_t              lock;
  123         struct mutex            resize_mutex;
  124         struct ib_umem         *umem;
  125         struct ib_umem         *resize_umem;
  126         int                     create_flags;
  127         /* List of qps that it serves.*/
  128         struct list_head                send_qp_list;
  129         struct list_head                recv_qp_list;
  130 };
  131 
  132 #define MLX4_MR_PAGES_ALIGN 0x40
  133 
  134 struct mlx4_ib_mr {
  135         struct ib_mr            ibmr;
  136         __be64                  *pages;
  137         dma_addr_t              page_map;
  138         u32                     npages;
  139         u32                     max_pages;
  140         struct mlx4_mr          mmr;
  141         struct ib_umem         *umem;
  142         size_t                  page_map_size;
  143 };
  144 
  145 struct mlx4_ib_mw {
  146         struct ib_mw            ibmw;
  147         struct mlx4_mw          mmw;
  148 };
  149 
  150 struct mlx4_ib_fmr {
  151         struct ib_fmr           ibfmr;
  152         struct mlx4_fmr         mfmr;
  153 };
  154 
  155 #define MAX_REGS_PER_FLOW 2
  156 
  157 struct mlx4_flow_reg_id {
  158         u64 id;
  159         u64 mirror;
  160 };
  161 
  162 struct mlx4_ib_flow {
  163         struct ib_flow ibflow;
  164         /* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
  165         struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
  166 };
  167 
  168 struct mlx4_ib_wq {
  169         u64                    *wrid;
  170         spinlock_t              lock;
  171         int                     wqe_cnt;
  172         int                     max_post;
  173         int                     max_gs;
  174         int                     offset;
  175         int                     wqe_shift;
  176         unsigned                head;
  177         unsigned                tail;
  178 };
  179 
  180 enum {
  181         MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START
  182 };
  183 
  184 enum mlx4_ib_qp_flags {
  185         MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
  186         MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
  187         MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
  188         MLX4_IB_QP_CREATE_USE_GFP_NOIO = IB_QP_CREATE_USE_GFP_NOIO,
  189 
  190         /* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
  191         MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
  192         MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
  193         MLX4_IB_SRIOV_SQP = 1U << 31,
  194 };
  195 
  196 struct mlx4_ib_gid_entry {
  197         struct list_head        list;
  198         union ib_gid            gid;
  199         int                     added;
  200         u8                      port;
  201 };
  202 
  203 enum mlx4_ib_qp_type {
  204         /*
  205          * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
  206          * here (and in that order) since the MAD layer uses them as
  207          * indices into a 2-entry table.
  208          */
  209         MLX4_IB_QPT_SMI = IB_QPT_SMI,
  210         MLX4_IB_QPT_GSI = IB_QPT_GSI,
  211 
  212         MLX4_IB_QPT_RC = IB_QPT_RC,
  213         MLX4_IB_QPT_UC = IB_QPT_UC,
  214         MLX4_IB_QPT_UD = IB_QPT_UD,
  215         MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
  216         MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
  217         MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
  218         MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
  219         MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
  220 
  221         MLX4_IB_QPT_PROXY_SMI_OWNER     = 1 << 16,
  222         MLX4_IB_QPT_PROXY_SMI           = 1 << 17,
  223         MLX4_IB_QPT_PROXY_GSI           = 1 << 18,
  224         MLX4_IB_QPT_TUN_SMI_OWNER       = 1 << 19,
  225         MLX4_IB_QPT_TUN_SMI             = 1 << 20,
  226         MLX4_IB_QPT_TUN_GSI             = 1 << 21,
  227 };
  228 
  229 #define MLX4_IB_QPT_ANY_SRIOV   (MLX4_IB_QPT_PROXY_SMI_OWNER | \
  230         MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
  231         MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
  232 
  233 enum mlx4_ib_mad_ifc_flags {
  234         MLX4_MAD_IFC_IGNORE_MKEY        = 1,
  235         MLX4_MAD_IFC_IGNORE_BKEY        = 2,
  236         MLX4_MAD_IFC_IGNORE_KEYS        = (MLX4_MAD_IFC_IGNORE_MKEY |
  237                                            MLX4_MAD_IFC_IGNORE_BKEY),
  238         MLX4_MAD_IFC_NET_VIEW           = 4,
  239 };
  240 
  241 enum {
  242         MLX4_NUM_TUNNEL_BUFS            = 256,
  243 };
  244 
  245 struct mlx4_ib_tunnel_header {
  246         struct mlx4_av av;
  247         __be32 remote_qpn;
  248         __be32 qkey;
  249         __be16 vlan;
  250         u8 mac[6];
  251         __be16 pkey_index;
  252         u8 reserved[6];
  253 };
  254 
  255 struct mlx4_ib_buf {
  256         void *addr;
  257         dma_addr_t map;
  258 };
  259 
  260 struct mlx4_rcv_tunnel_hdr {
  261         __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
  262                               * 0x0 - no vlan was in the packet
  263                               * 0x01 - C-VLAN was in the packet */
  264         u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
  265         u8 reserved;
  266         __be16 pkey_index;
  267         __be16 sl_vid;
  268         __be16 slid_mac_47_32;
  269         __be32 mac_31_0;
  270 };
  271 
  272 struct mlx4_ib_proxy_sqp_hdr {
  273         struct ib_grh grh;
  274         struct mlx4_rcv_tunnel_hdr tun;
  275 }  __packed;
  276 
  277 struct mlx4_roce_smac_vlan_info {
  278         u64 smac;
  279         int smac_index;
  280         int smac_port;
  281         u64 candidate_smac;
  282         int candidate_smac_index;
  283         int candidate_smac_port;
  284         u16 vid;
  285         int vlan_index;
  286         int vlan_port;
  287         u16 candidate_vid;
  288         int candidate_vlan_index;
  289         int candidate_vlan_port;
  290         int update_vid;
  291 };
  292 
  293 struct mlx4_ib_qp {
  294         struct ib_qp            ibqp;
  295         struct mlx4_qp          mqp;
  296         struct mlx4_buf         buf;
  297 
  298         struct mlx4_db          db;
  299         struct mlx4_ib_wq       rq;
  300 
  301         u32                     doorbell_qpn;
  302         __be32                  sq_signal_bits;
  303         unsigned                sq_next_wqe;
  304         int                     sq_max_wqes_per_wr;
  305         int                     sq_spare_wqes;
  306         struct mlx4_ib_wq       sq;
  307 
  308         enum mlx4_ib_qp_type    mlx4_ib_qp_type;
  309         struct ib_umem         *umem;
  310         struct mlx4_mtt         mtt;
  311         int                     buf_size;
  312         struct mutex            mutex;
  313         u16                     xrcdn;
  314         u32                     flags;
  315         u8                      port;
  316         u8                      alt_port;
  317         u8                      atomic_rd_en;
  318         u8                      resp_depth;
  319         u8                      sq_no_prefetch;
  320         u8                      state;
  321         int                     mlx_type;
  322         struct list_head        gid_list;
  323         struct list_head        steering_rules;
  324         struct mlx4_ib_buf      *sqp_proxy_rcv;
  325         struct mlx4_roce_smac_vlan_info pri;
  326         struct mlx4_roce_smac_vlan_info alt;
  327         u64                     reg_id;
  328         struct list_head        qps_list;
  329         struct list_head        cq_recv_list;
  330         struct list_head        cq_send_list;
  331         struct counter_index    *counter_index;
  332 };
  333 
  334 struct mlx4_ib_srq {
  335         struct ib_srq           ibsrq;
  336         struct mlx4_srq         msrq;
  337         struct mlx4_buf         buf;
  338         struct mlx4_db          db;
  339         u64                    *wrid;
  340         spinlock_t              lock;
  341         int                     head;
  342         int                     tail;
  343         u16                     wqe_ctr;
  344         struct ib_umem         *umem;
  345         struct mlx4_mtt         mtt;
  346         struct mutex            mutex;
  347 };
  348 
  349 struct mlx4_ib_ah {
  350         struct ib_ah            ibah;
  351         union mlx4_ext_av       av;
  352 };
  353 
  354 /****************************************/
  355 /* alias guid support */
  356 /****************************************/
  357 #define NUM_PORT_ALIAS_GUID             2
  358 #define NUM_ALIAS_GUID_IN_REC           8
  359 #define NUM_ALIAS_GUID_REC_IN_PORT      16
  360 #define GUID_REC_SIZE                   8
  361 #define NUM_ALIAS_GUID_PER_PORT         128
  362 #define MLX4_NOT_SET_GUID               (0x00LL)
  363 #define MLX4_GUID_FOR_DELETE_VAL        (~(0x00LL))
  364 
  365 enum mlx4_guid_alias_rec_status {
  366         MLX4_GUID_INFO_STATUS_IDLE,
  367         MLX4_GUID_INFO_STATUS_SET,
  368 };
  369 
  370 #define GUID_STATE_NEED_PORT_INIT 0x01
  371 
  372 enum mlx4_guid_alias_rec_method {
  373         MLX4_GUID_INFO_RECORD_SET       = IB_MGMT_METHOD_SET,
  374         MLX4_GUID_INFO_RECORD_DELETE    = IB_SA_METHOD_DELETE,
  375 };
  376 
  377 struct mlx4_sriov_alias_guid_info_rec_det {
  378         u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
  379         ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
  380         enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
  381         unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
  382         u64 time_to_run;
  383 };
  384 
  385 struct mlx4_sriov_alias_guid_port_rec_det {
  386         struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
  387         struct workqueue_struct *wq;
  388         struct delayed_work alias_guid_work;
  389         u8 port;
  390         u32 state_flags;
  391         struct mlx4_sriov_alias_guid *parent;
  392         struct list_head cb_list;
  393 };
  394 
  395 struct mlx4_sriov_alias_guid {
  396         struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
  397         spinlock_t ag_work_lock;
  398         struct ib_sa_client *sa_client;
  399 };
  400 
  401 struct mlx4_ib_demux_work {
  402         struct work_struct      work;
  403         struct mlx4_ib_dev     *dev;
  404         int                     slave;
  405         int                     do_init;
  406         u8                      port;
  407 
  408 };
  409 
  410 struct mlx4_ib_tun_tx_buf {
  411         struct mlx4_ib_buf buf;
  412         struct ib_ah *ah;
  413 };
  414 
  415 struct mlx4_ib_demux_pv_qp {
  416         struct ib_qp *qp;
  417         enum ib_qp_type proxy_qpt;
  418         struct mlx4_ib_buf *ring;
  419         struct mlx4_ib_tun_tx_buf *tx_ring;
  420         spinlock_t tx_lock;
  421         unsigned tx_ix_head;
  422         unsigned tx_ix_tail;
  423 };
  424 
  425 enum mlx4_ib_demux_pv_state {
  426         DEMUX_PV_STATE_DOWN,
  427         DEMUX_PV_STATE_STARTING,
  428         DEMUX_PV_STATE_ACTIVE,
  429         DEMUX_PV_STATE_DOWNING,
  430 };
  431 
  432 struct mlx4_ib_demux_pv_ctx {
  433         int port;
  434         int slave;
  435         enum mlx4_ib_demux_pv_state state;
  436         int has_smi;
  437         struct ib_device *ib_dev;
  438         struct ib_cq *cq;
  439         struct ib_pd *pd;
  440         struct work_struct work;
  441         struct workqueue_struct *wq;
  442         struct mlx4_ib_demux_pv_qp qp[2];
  443 };
  444 
  445 struct mlx4_ib_demux_ctx {
  446         struct ib_device *ib_dev;
  447         int port;
  448         struct workqueue_struct *wq;
  449         struct workqueue_struct *ud_wq;
  450         spinlock_t ud_lock;
  451         atomic64_t subnet_prefix;
  452         __be64 guid_cache[128];
  453         struct mlx4_ib_dev *dev;
  454         /* the following lock protects both mcg_table and mcg_mgid0_list */
  455         struct mutex            mcg_table_lock;
  456         struct rb_root          mcg_table;
  457         struct list_head        mcg_mgid0_list;
  458         struct workqueue_struct *mcg_wq;
  459         struct mlx4_ib_demux_pv_ctx **tun;
  460         atomic_t tid;
  461         int    flushing; /* flushing the work queue */
  462 };
  463 
  464 struct mlx4_ib_sriov {
  465         struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
  466         struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
  467         /* when using this spinlock you should use "irq" because
  468          * it may be called from interrupt context.*/
  469         spinlock_t going_down_lock;
  470         int is_going_down;
  471 
  472         struct mlx4_sriov_alias_guid alias_guid;
  473 
  474         /* CM paravirtualization fields */
  475         struct list_head cm_list;
  476         spinlock_t id_map_lock;
  477         struct rb_root sl_id_map;
  478         struct idr pv_id_table;
  479 };
  480 
  481 struct gid_cache_context {
  482         int real_index;
  483         int refcount;
  484 };
  485 
  486 struct gid_entry {
  487         union ib_gid    gid;
  488         enum ib_gid_type gid_type;
  489         struct gid_cache_context *ctx;
  490 };
  491 
  492 struct mlx4_port_gid_table {
  493         struct gid_entry gids[MLX4_MAX_PORT_GIDS];
  494 };
  495 
  496 struct mlx4_ib_iboe {
  497         spinlock_t              lock;
  498         struct ifnet      *netdevs[MLX4_MAX_PORTS];
  499         atomic64_t              mac[MLX4_MAX_PORTS];
  500         struct notifier_block   nb;
  501         struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
  502 };
  503 
  504 struct pkey_mgt {
  505         u8                      virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
  506         u16                     phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
  507         struct list_head        pkey_port_list[MLX4_MFUNC_MAX];
  508         struct kobject         *device_parent[MLX4_MFUNC_MAX];
  509 };
  510 
  511 struct mlx4_ib_iov_sysfs_attr {
  512         void *ctx;
  513         struct kobject *kobj;
  514         unsigned long data;
  515         u32 entry_num;
  516         char name[15];
  517         struct device_attribute dentry;
  518         struct device *dev;
  519 };
  520 
  521 struct mlx4_ib_iov_sysfs_attr_ar {
  522         struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
  523 };
  524 
  525 struct mlx4_ib_iov_port {
  526         char name[100];
  527         u8 num;
  528         struct mlx4_ib_dev *dev;
  529         struct list_head list;
  530         struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
  531         struct ib_port_attr attr;
  532         struct kobject  *cur_port;
  533         struct kobject  *admin_alias_parent;
  534         struct kobject  *gids_parent;
  535         struct kobject  *pkeys_parent;
  536         struct kobject  *mcgs_parent;
  537         struct mlx4_ib_iov_sysfs_attr mcg_dentry;
  538 };
  539 
  540 struct counter_index {
  541         struct  list_head       list;
  542         u32             index;
  543         u8              allocated;
  544 };
  545 
  546 struct mlx4_ib_counters {
  547         struct list_head        counters_list;
  548         struct mutex            mutex; /* mutex for accessing counters list */
  549         u32                     default_counter;
  550 };
  551 
  552 #define MLX4_DIAG_COUNTERS_TYPES 2
  553 
  554 struct mlx4_ib_diag_counters {
  555         const char **name;
  556         u32 *offset;
  557         u32 num_counters;
  558 };
  559 
  560 struct mlx4_ib_dev {
  561         struct ib_device        ib_dev;
  562         struct mlx4_dev        *dev;
  563         int                     num_ports;
  564         void __iomem           *uar_map;
  565 
  566         struct mlx4_uar         priv_uar;
  567         u32                     priv_pdn;
  568         MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
  569 
  570         struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
  571         struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
  572         spinlock_t              sm_lock;
  573         atomic64_t              sl2vl[MLX4_MAX_PORTS];
  574         struct mlx4_ib_sriov    sriov;
  575 
  576         struct mutex            cap_mask_mutex;
  577         bool                    ib_active;
  578         struct mlx4_ib_iboe     iboe;
  579         struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
  580         int                    *eq_table;
  581         struct kobject         *iov_parent;
  582         struct kobject         *ports_parent;
  583         struct kobject         *dev_ports_parent[MLX4_MFUNC_MAX];
  584         struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS];
  585         struct pkey_mgt         pkeys;
  586         unsigned long *ib_uc_qpns_bitmap;
  587         int steer_qpn_count;
  588         int steer_qpn_base;
  589         int steering_support;
  590         struct mlx4_ib_qp      *qp1_proxy[MLX4_MAX_PORTS];
  591         /* lock when destroying qp1_proxy and getting netdev events */
  592         struct mutex            qp1_proxy_lock[MLX4_MAX_PORTS];
  593         u8                      bond_next_port;
  594         /* protect resources needed as part of reset flow */
  595         spinlock_t              reset_flow_resource_lock;
  596         struct list_head                qp_list;
  597         struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES];
  598 };
  599 
  600 struct ib_event_work {
  601         struct work_struct      work;
  602         struct mlx4_ib_dev      *ib_dev;
  603         struct mlx4_eqe         ib_eqe;
  604         int                     port;
  605 };
  606 
  607 struct mlx4_ib_qp_tunnel_init_attr {
  608         struct ib_qp_init_attr init_attr;
  609         int slave;
  610         enum ib_qp_type proxy_qp_type;
  611         u8 port;
  612 };
  613 
  614 struct mlx4_uverbs_ex_query_device {
  615         __u32 comp_mask;
  616         __u32 reserved;
  617 };
  618 
  619 enum query_device_resp_mask {
  620         QUERY_DEVICE_RESP_MASK_TIMESTAMP = 1UL << 0,
  621 };
  622 
  623 struct mlx4_uverbs_ex_query_device_resp {
  624         __u32 comp_mask;
  625         __u32 response_length;
  626         __u64 hca_core_clock_offset;
  627 };
  628 
  629 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
  630 {
  631         return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
  632 }
  633 
  634 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
  635 {
  636         return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
  637 }
  638 
  639 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
  640 {
  641         return container_of(ibpd, struct mlx4_ib_pd, ibpd);
  642 }
  643 
  644 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
  645 {
  646         return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
  647 }
  648 
  649 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
  650 {
  651         return container_of(ibcq, struct mlx4_ib_cq, ibcq);
  652 }
  653 
  654 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
  655 {
  656         return container_of(mcq, struct mlx4_ib_cq, mcq);
  657 }
  658 
  659 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
  660 {
  661         return container_of(ibmr, struct mlx4_ib_mr, ibmr);
  662 }
  663 
  664 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
  665 {
  666         return container_of(ibmw, struct mlx4_ib_mw, ibmw);
  667 }
  668 
  669 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
  670 {
  671         return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
  672 }
  673 
  674 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
  675 {
  676         return container_of(ibflow, struct mlx4_ib_flow, ibflow);
  677 }
  678 
  679 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
  680 {
  681         return container_of(ibqp, struct mlx4_ib_qp, ibqp);
  682 }
  683 
  684 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
  685 {
  686         return container_of(mqp, struct mlx4_ib_qp, mqp);
  687 }
  688 
  689 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
  690 {
  691         return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
  692 }
  693 
  694 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
  695 {
  696         return container_of(msrq, struct mlx4_ib_srq, msrq);
  697 }
  698 
  699 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
  700 {
  701         return container_of(ibah, struct mlx4_ib_ah, ibah);
  702 }
  703 
  704 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
  705 {
  706         dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
  707 
  708         return dev->bond_next_port + 1;
  709 }
  710 
  711 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
  712 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
  713 
  714 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
  715                         struct mlx4_db *db);
  716 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
  717 
  718 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
  719 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
  720                            struct ib_umem *umem);
  721 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
  722                                   u64 virt_addr, int access_flags,
  723                                   struct ib_udata *udata);
  724 int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
  725 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
  726                                struct ib_udata *udata);
  727 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
  728 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
  729                                u32 max_num_sg, struct ib_udata *udata);
  730 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
  731                       unsigned int *sg_offset);
  732 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
  733 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
  734 int mlx4_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
  735                       struct ib_udata *udata);
  736 void mlx4_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
  737 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
  738 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
  739 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
  740 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
  741 
  742 int mlx4_ib_create_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr, u32 flags,
  743                       struct ib_udata *udata);
  744 int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct ib_ah_attr *ah_attr,
  745                             int slave_sgid_index, u8 *s_mac, u16 vlan_tag);
  746 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
  747 void mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags);
  748 
  749 int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
  750                        struct ib_udata *udata);
  751 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
  752                        enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
  753 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
  754 void mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
  755 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
  756 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
  757                           const struct ib_recv_wr **bad_wr);
  758 
  759 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
  760                                 struct ib_qp_init_attr *init_attr,
  761                                 struct ib_udata *udata);
  762 int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
  763 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
  764                       int attr_mask, struct ib_udata *udata);
  765 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
  766                      struct ib_qp_init_attr *qp_init_attr);
  767 int mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
  768                       const struct ib_send_wr **bad_wr);
  769 int mlx4_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
  770                       const struct ib_recv_wr **bad_wr);
  771 
  772 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
  773                  int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
  774                  const void *in_mad, void *response_mad);
  775 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
  776                         const struct ib_wc *in_wc, const struct ib_grh *in_grh,
  777                         const struct ib_mad_hdr *in, size_t in_mad_size,
  778                         struct ib_mad_hdr *out, size_t *out_mad_size,
  779                         u16 *out_mad_pkey_index);
  780 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
  781 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
  782 
  783 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
  784                                   struct ib_fmr_attr *fmr_attr);
  785 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
  786                          u64 iova);
  787 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
  788 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
  789 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
  790                          struct ib_port_attr *props, int netw_view);
  791 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
  792                          u16 *pkey, int netw_view);
  793 
  794 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
  795                         union ib_gid *gid, int netw_view);
  796 
  797 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
  798 {
  799         u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
  800 
  801         if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
  802                 return true;
  803 
  804         return !!(ah->av.ib.g_slid & 0x80);
  805 }
  806 
  807 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
  808 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
  809 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
  810 int mlx4_ib_mcg_init(void);
  811 void mlx4_ib_mcg_destroy(void);
  812 
  813 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
  814 
  815 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
  816                                   struct ib_sa_mad *sa_mad);
  817 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
  818                               struct ib_sa_mad *mad);
  819 
  820 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
  821                    union ib_gid *gid);
  822 
  823 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
  824                             enum ib_event_type type);
  825 
  826 void mlx4_ib_tunnels_update_work(struct work_struct *work);
  827 
  828 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
  829                           enum ib_qp_type qpt, struct ib_wc *wc,
  830                           struct ib_grh *grh, struct ib_mad *mad);
  831 
  832 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
  833                          enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
  834                          u32 qkey, struct ib_ah_attr *attr, u8 *s_mac,
  835                          u16 vlan_id, struct ib_mad *mad);
  836 
  837 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
  838 
  839 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
  840                 struct ib_mad *mad);
  841 
  842 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
  843                 struct ib_mad *mad);
  844 
  845 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
  846 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
  847 
  848 /* alias guid support */
  849 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
  850 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
  851 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
  852 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
  853 
  854 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
  855                                           int block_num,
  856                                           u8 port_num, u8 *p_data);
  857 
  858 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
  859                                          int block_num, u8 port_num,
  860                                          u8 *p_data);
  861 
  862 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
  863                             struct attribute *attr);
  864 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
  865                              struct attribute *attr);
  866 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
  867 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
  868                                     int port, int slave_init);
  869 
  870 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
  871 
  872 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
  873 
  874 __be64 mlx4_ib_gen_node_guid(void);
  875 
  876 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
  877 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
  878 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
  879                          int is_attach);
  880 int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
  881                           u64 start, u64 length, u64 virt_addr,
  882                           int mr_access_flags, struct ib_pd *pd,
  883                           struct ib_udata *udata);
  884 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
  885                                     u8 port_num, int index);
  886 
  887 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
  888                                      int port);
  889 
  890 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port);
  891 
  892 #endif /* MLX4_IB_H */
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FreeBSD/Linux Kernel Cross Reference sys/dev/mlx4/mlx4_ib/mlx4_ib.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/mlx4/mlx4_ib/mlx4_ib.h
