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