[net-next-2.6.git] / drivers / infiniband / core / 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 2730 2005-06-28 16:43:03Z sean.hefty $
 */

#ifndef __IB_MAD_PRIV_H__
#define __IB_MAD_PRIV_H__

#include <linux/pci.h>
#include <linux/kthread.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_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;
	wait_queue_head_t wait;
};

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;
	wait_queue_head_t wait;
};

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(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 */
	int last_ack;
	int seg_num;
	int newwin;
	int total_seg;
	int data_offset;
	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];
};

extern kmem_cache_t *ib_mad_cache;

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, __be64 tid);

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__ */
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved.
fa619a77 HR	3	* Copyright (c) 2005 Intel Corporation. All rights reserved.
fa619a77 HR	4	* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
1da177e4 LT	5	*
	6	* This software is available to you under a choice of one of two
	7	* licenses. You may choose to be licensed under the terms of the GNU
	8	* General Public License (GPL) Version 2, available from the file
	9	* COPYING in the main directory of this source tree, or the
	10	* OpenIB.org BSD license below:
	11	*
	12	* Redistribution and use in source and binary forms, with or
	13	* without modification, are permitted provided that the following
	14	* conditions are met:
	15	*
	16	* - Redistributions of source code must retain the above
	17	* copyright notice, this list of conditions and the following
	18	* disclaimer.
	19	*
	20	* - Redistributions in binary form must reproduce the above
	21	* copyright notice, this list of conditions and the following
	22	* disclaimer in the documentation and/or other materials
	23	* provided with the distribution.
	24	*
	25	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	26	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	27	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	28	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	29	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	30	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	31	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	32	* SOFTWARE.
	33	*
fa619a77	34	* $Id: mad_priv.h 2730 2005-06-28 16:43:03Z sean.hefty $
1da177e4 LT	35	*/
	36
	37	#ifndef __IB_MAD_PRIV_H__
	38	#define __IB_MAD_PRIV_H__
	39
	40	#include <linux/pci.h>
	41	#include <linux/kthread.h>
	42	#include <linux/workqueue.h>
a4d61e84 RD	43	#include <rdma/ib_mad.h>
a4d61e84 RD	44	#include <rdma/ib_smi.h>
1da177e4 LT	45
	46
	47	#define PFX "ib_mad: "
	48
	49	#define IB_MAD_QPS_CORE 2 /* Always QP0 and QP1 as a minimum */
	50
	51	/* QP and CQ parameters */
	52	#define IB_MAD_QP_SEND_SIZE 128
	53	#define IB_MAD_QP_RECV_SIZE 512
	54	#define IB_MAD_SEND_REQ_MAX_SG 2
	55	#define IB_MAD_RECV_REQ_MAX_SG 1
	56
	57	#define IB_MAD_SEND_Q_PSN 0
	58
	59	/* Registration table sizes */
	60	#define MAX_MGMT_CLASS 80
	61	#define MAX_MGMT_VERSION 8
	62	#define MAX_MGMT_OUI 8
	63	#define MAX_MGMT_VENDOR_RANGE2 (IB_MGMT_CLASS_VENDOR_RANGE2_END - \
	64	IB_MGMT_CLASS_VENDOR_RANGE2_START + 1)
	65
	66	struct ib_mad_list_head {
	67	struct list_head list;
	68	struct ib_mad_queue *mad_queue;
	69	};
	70
	71	struct ib_mad_private_header {
	72	struct ib_mad_list_head mad_list;
	73	struct ib_mad_recv_wc recv_wc;
24239aff	74	struct ib_wc wc;
1da177e4 LT	75	DECLARE_PCI_UNMAP_ADDR(mapping)
	76	} __attribute__ ((packed));
	77
	78	struct ib_mad_private {
	79	struct ib_mad_private_header header;
	80	struct ib_grh grh;
	81	union {
	82	struct ib_mad mad;
	83	struct ib_rmpp_mad rmpp_mad;
	84	struct ib_smp smp;
	85	} mad;
	86	} __attribute__ ((packed));
	87
	88	struct ib_mad_agent_private {
	89	struct list_head agent_list;
	90	struct ib_mad_agent agent;
	91	struct ib_mad_reg_req *reg_req;
	92	struct ib_mad_qp_info *qp_info;
	93
	94	spinlock_t lock;
	95	struct list_head send_list;
	96	struct list_head wait_list;
6a0c435e	97	struct list_head done_list;
1da177e4 LT	98	struct work_struct timed_work;
	99	unsigned long timeout;
	100	struct list_head local_list;
	101	struct work_struct local_work;
fa619a77	102	struct list_head rmpp_list;
1da177e4 LT	103
	104	atomic_t refcount;
	105	wait_queue_head_t wait;
1da177e4 LT	106	};
	107
	108	struct ib_mad_snoop_private {
	109	struct ib_mad_agent agent;
	110	struct ib_mad_qp_info *qp_info;
	111	int snoop_index;
	112	int mad_snoop_flags;
	113	atomic_t refcount;
	114	wait_queue_head_t wait;
	115	};
	116
	117	struct ib_mad_send_wr_private {
	118	struct ib_mad_list_head mad_list;
	119	struct list_head agent_list;
d760ce8f	120	struct ib_mad_agent_private *mad_agent_priv;
34816ad9 SH	121	struct ib_mad_send_buf send_buf;
34816ad9 SH	122	DECLARE_PCI_UNMAP_ADDR(mapping)
1da177e4 LT	123	struct ib_send_wr send_wr;
1da177e4 LT	124	struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
97f52eb4	125	__be64 tid;
1da177e4	126	unsigned long timeout;
f75b7a52	127	int retries;
1da177e4 LT	128	int retry;
	129	int refcount;
	130	enum ib_wc_status status;
fa619a77 HR	131
	132	/* RMPP control */
	133	int last_ack;
	134	int seg_num;
	135	int newwin;
	136	int total_seg;
	137	int data_offset;
	138	int pad;
1da177e4 LT	139	};
	140
	141	struct ib_mad_local_private {
	142	struct list_head completion_list;
	143	struct ib_mad_private *mad_priv;
	144	struct ib_mad_agent_private *recv_mad_agent;
34816ad9	145	struct ib_mad_send_wr_private *mad_send_wr;
1da177e4 LT	146	};
	147
	148	struct ib_mad_mgmt_method_table {
	149	struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS];
	150	};
	151
	152	struct ib_mad_mgmt_class_table {
	153	struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS];
	154	};
	155
	156	struct ib_mad_mgmt_vendor_class {
	157	u8 oui[MAX_MGMT_OUI][3];
	158	struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI];
	159	};
	160
	161	struct ib_mad_mgmt_vendor_class_table {
	162	struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2];
	163	};
	164
	165	struct ib_mad_mgmt_version_table {
	166	struct ib_mad_mgmt_class_table *class;
	167	struct ib_mad_mgmt_vendor_class_table *vendor;
	168	};
	169
	170	struct ib_mad_queue {
	171	spinlock_t lock;
	172	struct list_head list;
	173	int count;
	174	int max_active;
	175	struct ib_mad_qp_info *qp_info;
	176	};
	177
	178	struct ib_mad_qp_info {
	179	struct ib_mad_port_private *port_priv;
	180	struct ib_qp *qp;
	181	struct ib_mad_queue send_queue;
	182	struct ib_mad_queue recv_queue;
	183	struct list_head overflow_list;
	184	spinlock_t snoop_lock;
	185	struct ib_mad_snoop_private **snoop_table;
	186	int snoop_table_size;
	187	atomic_t snoop_count;
	188	};
	189
	190	struct ib_mad_port_private {
	191	struct list_head port_list;
	192	struct ib_device *device;
	193	int port_num;
	194	struct ib_cq *cq;
	195	struct ib_pd *pd;
	196	struct ib_mr *mr;
	197
	198	spinlock_t reg_lock;
	199	struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];
	200	struct list_head agent_list;
	201	struct workqueue_struct *wq;
	202	struct work_struct work;
	203	struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE];
	204	};
	205
	206	extern kmem_cache_t *ib_mad_cache;
	207
fa619a77 HR	208	int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr);
	209
	210	struct ib_mad_send_wr_private *
97f52eb4	211	ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv, __be64 tid);
fa619a77 HR	212
	213	void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr,
	214	struct ib_mad_send_wc *mad_send_wc);
	215
	216	void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr);
	217
	218	void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr,
	219	int timeout_ms);
	220
1da177e4	221	#endif /* __IB_MAD_PRIV_H__ */