drivers/infiniband/core/mad_priv.h - arm/linux - Git at Google


            
            /*

            
             * 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.

            
             *

            
             * 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.

            
             *

            
             * $Id: mad_priv.h 5596 2006-03-03 01:00:07Z sean.hefty $

            
             */


            #ifndef __IB_MAD_PRIV_H__

            
            #define __IB_MAD_PRIV_H__


            #include <linux/completion.h>

            
            #include <linux/err.h>

            
            #include <linux/pci.h>

            
            #include <linux/workqueue.h>

            
            #include <rdma/ib_mad.h>

            
            #include <rdma/ib_smi.h>


            #define PFX "ib_mad: "


            #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_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	8

            
            #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_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;

            
            	DECLARE_PCI_UNMAP_ADDR(mapping)

            
            } __attribute__ ((packed));


            struct ib_mad_private {

            
            	struct ib_mad_private_header header;

            
            	struct ib_grh grh;

            
            	union {

            
            		struct ib_mad mad;

            
            		struct ib_rmpp_mad rmpp_mad;

            
            		struct ib_smp smp;

            
            	} mad;

            
            } __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 work_struct 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;

            
            	DECLARE_PCI_UNMAP_ADDR(header_mapping)

            
            	DECLARE_PCI_UNMAP_ADDR(payload_mapping)

            
            	struct ib_send_wr send_wr;

            
            	struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];

            
            	__be64 tid;

            
            	unsigned long timeout;

            
            	int retries;

            
            	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;

            
            };


            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;

            
            	struct ib_mr *mr;


            	spinlock_t reg_lock;

            
            	struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];

            
            	struct list_head agent_list;

            
            	struct workqueue_struct *wq;

            
            	struct work_struct work;

            
            	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(struct ib_mad_agent_private *mad_agent_priv,

            
            		 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__ */
	/*
	* 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.
	*
	* 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.
	*
	* $Id: mad_priv.h 5596 2006-03-03 01:00:07Z sean.hefty $
	*/

	#ifndef __IB_MAD_PRIV_H__
	#define __IB_MAD_PRIV_H__

	#include <linux/completion.h>
	#include <linux/err.h>
	#include <linux/pci.h>
	#include <linux/workqueue.h>
	#include <rdma/ib_mad.h>
	#include <rdma/ib_smi.h>


	#define PFX "ib_mad: "

	#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_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 8
	#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_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;
	DECLARE_PCI_UNMAP_ADDR(mapping)
	} __attribute__ ((packed));

	struct ib_mad_private {
	struct ib_mad_private_header header;
	struct ib_grh grh;
	union {
	struct ib_mad mad;
	struct ib_rmpp_mad rmpp_mad;
	struct ib_smp smp;
	} mad;
	} __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 work_struct 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;
	DECLARE_PCI_UNMAP_ADDR(header_mapping)
	DECLARE_PCI_UNMAP_ADDR(payload_mapping)
	struct ib_send_wr send_wr;
	struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
	__be64 tid;
	unsigned long timeout;
	int retries;
	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;
	};

	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;
	struct ib_mr *mr;

	spinlock_t reg_lock;
	struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];
	struct list_head agent_list;
	struct workqueue_struct *wq;
	struct work_struct work;
	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(struct ib_mad_agent_private *mad_agent_priv,
	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__ */