[linux-2.6-block.git] / drivers / infiniband / hw / usnic / usnic_ib.h

/*
 * Copyright (c) 2013, Cisco Systems, 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
 * 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 USNIC_IB_H_
#define USNIC_IB_H_

#include <linux/iommu.h>
#include <linux/netdevice.h>

#include <rdma/ib_verbs.h>


#include "usnic.h"
#include "usnic_abi.h"
#include "usnic_vnic.h"

#define USNIC_IB_PORT_CNT		1
#define USNIC_IB_NUM_COMP_VECTORS	1

extern unsigned int usnic_ib_share_vf;

struct usnic_ib_ucontext {
	struct ib_ucontext		ibucontext;
	/* Protected by usnic_ib_dev->usdev_lock */
	struct list_head		qp_grp_list;
	struct list_head		link;
};

struct usnic_ib_pd {
	struct ib_pd			ibpd;
	struct usnic_uiom_pd		*umem_pd;
};

struct usnic_ib_mr {
	struct ib_mr			ibmr;
	struct usnic_uiom_reg		*umem;
};

struct usnic_ib_dev {
	struct ib_device		ib_dev;
	struct pci_dev			*pdev;
	struct net_device		*netdev;
	struct usnic_fwd_dev		*ufdev;
	struct list_head		ib_dev_link;
	struct list_head		vf_dev_list;
	struct list_head		ctx_list;
	struct mutex			usdev_lock;

	/* provisioning information */
	struct kref			vf_cnt;
	unsigned int			vf_res_cnt[USNIC_VNIC_RES_TYPE_MAX];

	/* sysfs vars for QPN reporting */
	struct kobject *qpn_kobj;
};

struct usnic_ib_vf {
	struct usnic_ib_dev		*pf;
	spinlock_t			lock;
	struct usnic_vnic		*vnic;
	unsigned int			qp_grp_ref_cnt;
	struct usnic_ib_pd		*pd;
	struct list_head		link;
};

static inline
struct usnic_ib_dev *to_usdev(struct ib_device *ibdev)
{
	return container_of(ibdev, struct usnic_ib_dev, ib_dev);
}

static inline
struct usnic_ib_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
{
	return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
}

static inline
struct usnic_ib_pd *to_upd(struct ib_pd *ibpd)
{
	return container_of(ibpd, struct usnic_ib_pd, ibpd);
}

static inline
struct usnic_ib_ucontext *to_uucontext(struct ib_ucontext *ibucontext)
{
	return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
}

static inline
struct usnic_ib_mr *to_umr(struct ib_mr *ibmr)
{
	return container_of(ibmr, struct usnic_ib_mr, ibmr);
}
void usnic_ib_log_vf(struct usnic_ib_vf *vf);

#define UPDATE_PTR_LEFT(N, P, L)			\
do {							\
	L -= (N);					\
	P += (N);					\
} while (0)

#endif /* USNIC_IB_H_ */
Commit	Line	Data
e3cf00d0 UM	1	/*
	2	* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
	3	*
3805eade JS	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
e3cf00d0 UM	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*
	32	*/
	33
	34	#ifndef USNIC_IB_H_
	35	#define USNIC_IB_H_
	36
	37	#include <linux/iommu.h>
	38	#include <linux/netdevice.h>
e3cf00d0 UM	39
	40	#include <rdma/ib_verbs.h>
	41
	42
	43	#include "usnic.h"
	44	#include "usnic_abi.h"
	45	#include "usnic_vnic.h"
	46
	47	#define USNIC_IB_PORT_CNT 1
	48	#define USNIC_IB_NUM_COMP_VECTORS 1
	49
	50	extern unsigned int usnic_ib_share_vf;
	51
	52	struct usnic_ib_ucontext {
	53	struct ib_ucontext ibucontext;
	54	/* Protected by usnic_ib_dev->usdev_lock */
	55	struct list_head qp_grp_list;
	56	struct list_head link;
	57	};
	58
	59	struct usnic_ib_pd {
	60	struct ib_pd ibpd;
	61	struct usnic_uiom_pd *umem_pd;
	62	};
	63
	64	struct usnic_ib_mr {
	65	struct ib_mr ibmr;
	66	struct usnic_uiom_reg *umem;
	67	};
	68
	69	struct usnic_ib_dev {
	70	struct ib_device ib_dev;
	71	struct pci_dev *pdev;
	72	struct net_device *netdev;
	73	struct usnic_fwd_dev *ufdev;
e3cf00d0 UM	74	struct list_head ib_dev_link;
	75	struct list_head vf_dev_list;
	76	struct list_head ctx_list;
	77	struct mutex usdev_lock;
e3cf00d0 UM	78
	79	/* provisioning information */
	80	struct kref vf_cnt;
	81	unsigned int vf_res_cnt[USNIC_VNIC_RES_TYPE_MAX];
	82
	83	/* sysfs vars for QPN reporting */
	84	struct kobject *qpn_kobj;
	85	};
	86
	87	struct usnic_ib_vf {
	88	struct usnic_ib_dev *pf;
	89	spinlock_t lock;
	90	struct usnic_vnic *vnic;
	91	unsigned int qp_grp_ref_cnt;
	92	struct usnic_ib_pd *pd;
	93	struct list_head link;
	94	};
	95
	96	static inline
	97	struct usnic_ib_dev to_usdev(struct ib_device ibdev)
	98	{
	99	return container_of(ibdev, struct usnic_ib_dev, ib_dev);
	100	}
	101
	102	static inline
	103	struct usnic_ib_ucontext to_ucontext(struct ib_ucontext ibucontext)
	104	{
	105	return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
	106	}
	107
	108	static inline
	109	struct usnic_ib_pd to_upd(struct ib_pd ibpd)
	110	{
	111	return container_of(ibpd, struct usnic_ib_pd, ibpd);
	112	}
	113
	114	static inline
	115	struct usnic_ib_ucontext to_uucontext(struct ib_ucontext ibucontext)
	116	{
	117	return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
	118	}
	119
	120	static inline
	121	struct usnic_ib_mr to_umr(struct ib_mr ibmr)
	122	{
	123	return container_of(ibmr, struct usnic_ib_mr, ibmr);
	124	}
	125	void usnic_ib_log_vf(struct usnic_ib_vf *vf);
9f637f79 UM	126
	127	#define UPDATE_PTR_LEFT(N, P, L) \
	128	do { \
	129	L -= (N); \
	130	P += (N); \
	131	} while (0)
	132
e3cf00d0	133	#endif /* USNIC_IB_H_ */