| /* |
| * 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. |
| */ |
| |
| #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 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; |
| union { |
| struct completion comp; |
| struct rcu_head rcu; |
| }; |
| }; |
| |
| 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 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, |
| unsigned long timeout_ms); |
| |
| #endif /* __IB_MAD_PRIV_H__ */ |