FreeBSD/Linux Kernel Cross Reference
sys/ofed/drivers/infiniband/core/mad_priv.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
      *
      * Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved.
      * Copyright (c) 2005 Intel Corporation. All rights reserved.
      * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
      * Copyright (c) 2009 HNR Consulting. All rights reserved.
      *
      * This software is available to you under a choice of one of two
     * licenses.  You may choose to be licensed under the terms of the GNU
     * General Public License (GPL) Version 2, available from the file
     * COPYING in the main directory of this source tree, or the
     * OpenIB.org BSD license below:
     *
     *     Redistribution and use in source and binary forms, with or
     *     without modification, are permitted provided that the following
     *     conditions are met:
     *
     *      - Redistributions of source code must retain the above
     *        copyright notice, this list of conditions and the following
     *        disclaimer.
     *
     *      - Redistributions in binary form must reproduce the above
     *        copyright notice, this list of conditions and the following
     *        disclaimer in the documentation and/or other materials
     *        provided with the distribution.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     * SOFTWARE.
     *
     * $FreeBSD$
     */
    
    #ifndef __IB_MAD_PRIV_H__
    #define __IB_MAD_PRIV_H__
    
    #include <linux/completion.h>
    #include <linux/err.h>
    #include <linux/workqueue.h>
    #include <rdma/ib_mad.h>
    #include <rdma/ib_smi.h>
    #include <rdma/opa_smi.h>
    
    #define IB_MAD_QPS_CORE         2 /* Always QP0 and QP1 as a minimum */
    
    /* QP and CQ parameters */
    #define IB_MAD_QP_SEND_SIZE     128
    #define IB_MAD_QP_RECV_SIZE     512
    #define IB_MAD_QP_MIN_SIZE      64
    #define IB_MAD_QP_MAX_SIZE      8192
    #define IB_MAD_SEND_REQ_MAX_SG  2
    #define IB_MAD_RECV_REQ_MAX_SG  1
    
    #define IB_MAD_SEND_Q_PSN       0
    
    /* Registration table sizes */
    #define MAX_MGMT_CLASS          80
    #define MAX_MGMT_VERSION        0x83
    #define MAX_MGMT_OUI            8
    #define MAX_MGMT_VENDOR_RANGE2  (IB_MGMT_CLASS_VENDOR_RANGE2_END - \
                                    IB_MGMT_CLASS_VENDOR_RANGE2_START + 1)
    
    struct ib_mad_list_head {
            struct list_head list;
            struct ib_cqe cqe;
            struct ib_mad_queue *mad_queue;
    };
    
    struct ib_mad_private_header {
            struct ib_mad_list_head mad_list;
            struct ib_mad_recv_wc recv_wc;
            struct ib_wc wc;
            u64 mapping;
    } __attribute__ ((packed));
    
    struct ib_mad_private {
            struct ib_mad_private_header header;
            size_t mad_size;
            struct ib_grh grh;
            u8 mad[0];
    } __attribute__ ((packed));
    
    struct ib_rmpp_segment {
            struct list_head list;
            u32 num;
            u8 data[0];
    };
    
    struct ib_mad_agent_private {
            struct list_head agent_list;
            struct ib_mad_agent agent;
            struct ib_mad_reg_req *reg_req;
            struct ib_mad_qp_info *qp_info;
   
           spinlock_t lock;
           struct list_head send_list;
           struct list_head wait_list;
           struct list_head done_list;
           struct delayed_work timed_work;
           unsigned long timeout;
           struct list_head local_list;
           struct work_struct local_work;
           struct list_head rmpp_list;
   
           atomic_t refcount;
           struct completion comp;
   };
   
   struct ib_mad_snoop_private {
           struct ib_mad_agent agent;
           struct ib_mad_qp_info *qp_info;
           int snoop_index;
           int mad_snoop_flags;
           atomic_t refcount;
           struct completion comp;
   };
   
   struct ib_mad_send_wr_private {
           struct ib_mad_list_head mad_list;
           struct list_head agent_list;
           struct ib_mad_agent_private *mad_agent_priv;
           struct ib_mad_send_buf send_buf;
           u64 header_mapping;
           u64 payload_mapping;
           struct ib_ud_wr send_wr;
           struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
           __be64 tid;
           unsigned long timeout;
           int max_retries;
           int retries_left;
           int retry;
           int refcount;
           enum ib_wc_status status;
   
           /* RMPP control */
           struct list_head rmpp_list;
           struct ib_rmpp_segment *last_ack_seg;
           struct ib_rmpp_segment *cur_seg;
           int last_ack;
           int seg_num;
           int newwin;
           int pad;
   };
   
   struct ib_mad_local_private {
           struct list_head completion_list;
           struct ib_mad_private *mad_priv;
           struct ib_mad_agent_private *recv_mad_agent;
           struct ib_mad_send_wr_private *mad_send_wr;
           size_t return_wc_byte_len;
   };
   
   struct ib_mad_mgmt_method_table {
           struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS];
   };
   
   struct ib_mad_mgmt_class_table {
           struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS];
   };
   
   struct ib_mad_mgmt_vendor_class {
           u8      oui[MAX_MGMT_OUI][3];
           struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI];
   };
   
   struct ib_mad_mgmt_vendor_class_table {
           struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2];
   };
   
   struct ib_mad_mgmt_version_table {
           struct ib_mad_mgmt_class_table *class;
           struct ib_mad_mgmt_vendor_class_table *vendor;
   };
   
   struct ib_mad_queue {
           spinlock_t lock;
           struct list_head list;
           int count;
           int max_active;
           struct ib_mad_qp_info *qp_info;
   };
   
   struct ib_mad_qp_info {
           struct ib_mad_port_private *port_priv;
           struct ib_qp *qp;
           struct ib_mad_queue send_queue;
           struct ib_mad_queue recv_queue;
           struct list_head overflow_list;
           spinlock_t snoop_lock;
           struct ib_mad_snoop_private **snoop_table;
           int snoop_table_size;
           atomic_t snoop_count;
   };
   
   struct ib_mad_port_private {
           struct list_head port_list;
           struct ib_device *device;
           int port_num;
           struct ib_cq *cq;
           struct ib_pd *pd;
   
           spinlock_t reg_lock;
           struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];
           struct list_head agent_list;
           struct workqueue_struct *wq;
           struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE];
   };
   
   int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr);
   
   struct ib_mad_send_wr_private *
   ib_find_send_mad(const struct ib_mad_agent_private *mad_agent_priv,
                    const struct ib_mad_recv_wc *mad_recv_wc);
   
   void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr,
                                struct ib_mad_send_wc *mad_send_wc);
   
   void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr);
   
   void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr,
                             int timeout_ms);
   
   #endif  /* __IB_MAD_PRIV_H__ */

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