[mirror_ubuntu-artful-kernel.git] / drivers / infiniband / hw / bnxt_re / ib_verbs.h

/*
 * Broadcom NetXtreme-E RoCE driver.
 *
 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
 *
 * 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:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Description: IB Verbs interpreter (header)
 */

#ifndef __BNXT_RE_IB_VERBS_H__
#define __BNXT_RE_IB_VERBS_H__

struct bnxt_re_gid_ctx {
	u32			idx;
	u32			refcnt;
};

#define BNXT_RE_FENCE_BYTES	64
struct bnxt_re_fence_data {
	u32 size;
	u8 va[BNXT_RE_FENCE_BYTES];
	dma_addr_t dma_addr;
	struct bnxt_re_mr *mr;
	struct ib_mw *mw;
	struct bnxt_qplib_swqe bind_wqe;
	u32 bind_rkey;
};

struct bnxt_re_pd {
	struct bnxt_re_dev	*rdev;
	struct ib_pd		ib_pd;
	struct bnxt_qplib_pd	qplib_pd;
	struct bnxt_qplib_dpi	dpi;
	struct bnxt_re_fence_data fence;
};

struct bnxt_re_ah {
	struct bnxt_re_dev	*rdev;
	struct ib_ah		ib_ah;
	struct bnxt_qplib_ah	qplib_ah;
};

struct bnxt_re_qp {
	struct list_head	list;
	struct bnxt_re_dev	*rdev;
	struct ib_qp		ib_qp;
	spinlock_t		sq_lock;	/* protect sq */
	spinlock_t		rq_lock;	/* protect rq */
	struct bnxt_qplib_qp	qplib_qp;
	struct ib_umem		*sumem;
	struct ib_umem		*rumem;
	/* QP1 */
	u32			send_psn;
	struct ib_ud_header	qp1_hdr;
};

struct bnxt_re_cq {
	struct bnxt_re_dev	*rdev;
	spinlock_t              cq_lock;	/* protect cq */
	u16			cq_count;
	u16			cq_period;
	struct ib_cq		ib_cq;
	struct bnxt_qplib_cq	qplib_cq;
	struct bnxt_qplib_cqe	*cql;
#define MAX_CQL_PER_POLL	1024
	u32			max_cql;
	struct ib_umem		*umem;
};

struct bnxt_re_mr {
	struct bnxt_re_dev	*rdev;
	struct ib_mr		ib_mr;
	struct ib_umem		*ib_umem;
	struct bnxt_qplib_mrw	qplib_mr;
	u32			npages;
	u64			*pages;
	struct bnxt_qplib_frpl	qplib_frpl;
};

struct bnxt_re_frpl {
	struct bnxt_re_dev		*rdev;
	struct bnxt_qplib_frpl		qplib_frpl;
	u64				*page_list;
};

struct bnxt_re_fmr {
	struct bnxt_re_dev	*rdev;
	struct ib_fmr		ib_fmr;
	struct bnxt_qplib_mrw	qplib_fmr;
};

struct bnxt_re_mw {
	struct bnxt_re_dev	*rdev;
	struct ib_mw		ib_mw;
	struct bnxt_qplib_mrw	qplib_mw;
};

struct bnxt_re_ucontext {
	struct bnxt_re_dev	*rdev;
	struct ib_ucontext	ib_uctx;
	struct bnxt_qplib_dpi	*dpi;
	void			*shpg;
	spinlock_t		sh_lock;	/* protect shpg */
};

struct net_device *bnxt_re_get_netdev(struct ib_device *ibdev, u8 port_num);

int bnxt_re_query_device(struct ib_device *ibdev,
			 struct ib_device_attr *ib_attr,
			 struct ib_udata *udata);
int bnxt_re_modify_device(struct ib_device *ibdev,
			  int device_modify_mask,
			  struct ib_device_modify *device_modify);
int bnxt_re_query_port(struct ib_device *ibdev, u8 port_num,
		       struct ib_port_attr *port_attr);
int bnxt_re_modify_port(struct ib_device *ibdev, u8 port_num,
			int port_modify_mask,
			struct ib_port_modify *port_modify);
int bnxt_re_get_port_immutable(struct ib_device *ibdev, u8 port_num,
			       struct ib_port_immutable *immutable);
int bnxt_re_query_pkey(struct ib_device *ibdev, u8 port_num,
		       u16 index, u16 *pkey);
int bnxt_re_del_gid(struct ib_device *ibdev, u8 port_num,
		    unsigned int index, void **context);
int bnxt_re_add_gid(struct ib_device *ibdev, u8 port_num,
		    unsigned int index, const union ib_gid *gid,
		    const struct ib_gid_attr *attr, void **context);
int bnxt_re_query_gid(struct ib_device *ibdev, u8 port_num,
		      int index, union ib_gid *gid);
enum rdma_link_layer bnxt_re_get_link_layer(struct ib_device *ibdev,
					    u8 port_num);
struct ib_pd *bnxt_re_alloc_pd(struct ib_device *ibdev,
			       struct ib_ucontext *context,
			       struct ib_udata *udata);
int bnxt_re_dealloc_pd(struct ib_pd *pd);
struct ib_ah *bnxt_re_create_ah(struct ib_pd *pd,
				struct rdma_ah_attr *ah_attr,
				struct ib_udata *udata);
int bnxt_re_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
int bnxt_re_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
int bnxt_re_destroy_ah(struct ib_ah *ah);
struct ib_qp *bnxt_re_create_qp(struct ib_pd *pd,
				struct ib_qp_init_attr *qp_init_attr,
				struct ib_udata *udata);
int bnxt_re_modify_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
		      int qp_attr_mask, struct ib_udata *udata);
int bnxt_re_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
		     int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
int bnxt_re_destroy_qp(struct ib_qp *qp);
int bnxt_re_post_send(struct ib_qp *qp, struct ib_send_wr *send_wr,
		      struct ib_send_wr **bad_send_wr);
int bnxt_re_post_recv(struct ib_qp *qp, struct ib_recv_wr *recv_wr,
		      struct ib_recv_wr **bad_recv_wr);
struct ib_cq *bnxt_re_create_cq(struct ib_device *ibdev,
				const struct ib_cq_init_attr *attr,
				struct ib_ucontext *context,
				struct ib_udata *udata);
int bnxt_re_destroy_cq(struct ib_cq *cq);
int bnxt_re_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc);
int bnxt_re_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
struct ib_mr *bnxt_re_get_dma_mr(struct ib_pd *pd, int mr_access_flags);

int bnxt_re_map_mr_sg(struct ib_mr *ib_mr, struct scatterlist *sg, int sg_nents,
		      unsigned int *sg_offset);
struct ib_mr *bnxt_re_alloc_mr(struct ib_pd *ib_pd, enum ib_mr_type mr_type,
			       u32 max_num_sg);
int bnxt_re_dereg_mr(struct ib_mr *mr);
struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
			       struct ib_udata *udata);
int bnxt_re_dealloc_mw(struct ib_mw *mw);
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
				  u64 virt_addr, int mr_access_flags,
				  struct ib_udata *udata);
struct ib_ucontext *bnxt_re_alloc_ucontext(struct ib_device *ibdev,
					   struct ib_udata *udata);
int bnxt_re_dealloc_ucontext(struct ib_ucontext *context);
int bnxt_re_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
#endif /* __BNXT_RE_IB_VERBS_H__ */
Commit	Line	Data
1ac5a404 SX	1	/*
	2	* Broadcom NetXtreme-E RoCE driver.
	3	*
	4	* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
	5	* Broadcom refers to Broadcom Limited and/or its subsidiaries.
	6	*
	7	* This software is available to you under a choice of one of two
	8	* licenses. You may choose to be licensed under the terms of the GNU
	9	* General Public License (GPL) Version 2, available from the file
	10	* COPYING in the main directory of this source tree, or the
	11	* BSD license below:
	12	*
	13	* Redistribution and use in source and binary forms, with or without
	14	* modification, are permitted provided that the following conditions
	15	* are met:
	16	*
	17	* 1. Redistributions of source code must retain the above copyright
	18	* notice, this list of conditions and the following disclaimer.
	19	* 2. Redistributions in binary form must reproduce the above copyright
	20	* notice, this list of conditions and the following disclaimer in
	21	* the documentation and/or other materials provided with the
	22	* distribution.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
	25	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	26	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	27	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
	28	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	29	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	30	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	31	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	32	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
	33	* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
	34	* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	35	*
	36	* Description: IB Verbs interpreter (header)
	37	*/
	38
	39	#ifndef __BNXT_RE_IB_VERBS_H__
	40	#define __BNXT_RE_IB_VERBS_H__
	41
	42	struct bnxt_re_gid_ctx {
	43	u32 idx;
	44	u32 refcnt;
	45	};
	46
9152e0b7 EW	47	#define BNXT_RE_FENCE_BYTES 64
	48	struct bnxt_re_fence_data {
	49	u32 size;
	50	u8 va[BNXT_RE_FENCE_BYTES];
	51	dma_addr_t dma_addr;
	52	struct bnxt_re_mr *mr;
	53	struct ib_mw *mw;
	54	struct bnxt_qplib_swqe bind_wqe;
	55	u32 bind_rkey;
	56	};
	57
1ac5a404 SX	58	struct bnxt_re_pd {
	59	struct bnxt_re_dev *rdev;
	60	struct ib_pd ib_pd;
	61	struct bnxt_qplib_pd qplib_pd;
	62	struct bnxt_qplib_dpi dpi;
9152e0b7	63	struct bnxt_re_fence_data fence;
1ac5a404 SX	64	};
	65
	66	struct bnxt_re_ah {
	67	struct bnxt_re_dev *rdev;
	68	struct ib_ah ib_ah;
	69	struct bnxt_qplib_ah qplib_ah;
	70	};
	71
	72	struct bnxt_re_qp {
	73	struct list_head list;
	74	struct bnxt_re_dev *rdev;
	75	struct ib_qp ib_qp;
	76	spinlock_t sq_lock; /* protect sq */
018cf599	77	spinlock_t rq_lock; /* protect rq */
1ac5a404 SX	78	struct bnxt_qplib_qp qplib_qp;
	79	struct ib_umem *sumem;
	80	struct ib_umem *rumem;
	81	/* QP1 */
	82	u32 send_psn;
	83	struct ib_ud_header qp1_hdr;
	84	};
	85
	86	struct bnxt_re_cq {
	87	struct bnxt_re_dev *rdev;
	88	spinlock_t cq_lock; /* protect cq */
	89	u16 cq_count;
	90	u16 cq_period;
	91	struct ib_cq ib_cq;
	92	struct bnxt_qplib_cq qplib_cq;
	93	struct bnxt_qplib_cqe *cql;
	94	#define MAX_CQL_PER_POLL 1024
	95	u32 max_cql;
	96	struct ib_umem *umem;
	97	};
	98
	99	struct bnxt_re_mr {
	100	struct bnxt_re_dev *rdev;
	101	struct ib_mr ib_mr;
	102	struct ib_umem *ib_umem;
	103	struct bnxt_qplib_mrw qplib_mr;
	104	u32 npages;
	105	u64 *pages;
	106	struct bnxt_qplib_frpl qplib_frpl;
	107	};
	108
	109	struct bnxt_re_frpl {
	110	struct bnxt_re_dev *rdev;
	111	struct bnxt_qplib_frpl qplib_frpl;
	112	u64 *page_list;
	113	};
	114
	115	struct bnxt_re_fmr {
	116	struct bnxt_re_dev *rdev;
	117	struct ib_fmr ib_fmr;
	118	struct bnxt_qplib_mrw qplib_fmr;
	119	};
	120
	121	struct bnxt_re_mw {
	122	struct bnxt_re_dev *rdev;
	123	struct ib_mw ib_mw;
	124	struct bnxt_qplib_mrw qplib_mw;
	125	};
	126
	127	struct bnxt_re_ucontext {
	128	struct bnxt_re_dev *rdev;
	129	struct ib_ucontext ib_uctx;
	130	struct bnxt_qplib_dpi *dpi;
	131	void *shpg;
	132	spinlock_t sh_lock; /* protect shpg */
	133	};
	134
	135	struct net_device bnxt_re_get_netdev(struct ib_device ibdev, u8 port_num);
	136
	137	int bnxt_re_query_device(struct ib_device *ibdev,
	138	struct ib_device_attr *ib_attr,
	139	struct ib_udata *udata);
	140	int bnxt_re_modify_device(struct ib_device *ibdev,
	141	int device_modify_mask,
142	struct ib_device_modify *device_modify);
143	int bnxt_re_query_port(struct ib_device *ibdev, u8 port_num,
144	struct ib_port_attr *port_attr);
145	int bnxt_re_modify_port(struct ib_device *ibdev, u8 port_num,
146	int port_modify_mask,
147	struct ib_port_modify *port_modify);
148	int bnxt_re_get_port_immutable(struct ib_device *ibdev, u8 port_num,
149	struct ib_port_immutable *immutable);
150	int bnxt_re_query_pkey(struct ib_device *ibdev, u8 port_num,
151	u16 index, u16 *pkey);
152	int bnxt_re_del_gid(struct ib_device *ibdev, u8 port_num,
153	unsigned int index, void **context);
154	int bnxt_re_add_gid(struct ib_device *ibdev, u8 port_num,
155	unsigned int index, const union ib_gid *gid,
156	const struct ib_gid_attr attr, void *context);
157	int bnxt_re_query_gid(struct ib_device *ibdev, u8 port_num,
158	int index, union ib_gid *gid);
159	enum rdma_link_layer bnxt_re_get_link_layer(struct ib_device *ibdev,
160	u8 port_num);
161	struct ib_pd bnxt_re_alloc_pd(struct ib_device ibdev,
162	struct ib_ucontext *context,
163	struct ib_udata *udata);
164	int bnxt_re_dealloc_pd(struct ib_pd *pd);
165	struct ib_ah bnxt_re_create_ah(struct ib_pd pd,
90898850	166	struct rdma_ah_attr *ah_attr,
1ac5a404	167	struct ib_udata *udata);
90898850 DC	168	int bnxt_re_modify_ah(struct ib_ah ah, struct rdma_ah_attr ah_attr);
90898850 DC	169	int bnxt_re_query_ah(struct ib_ah ah, struct rdma_ah_attr ah_attr);
1ac5a404 SX	170	int bnxt_re_destroy_ah(struct ib_ah *ah);
	171	struct ib_qp bnxt_re_create_qp(struct ib_pd pd,
	172	struct ib_qp_init_attr *qp_init_attr,
	173	struct ib_udata *udata);
	174	int bnxt_re_modify_qp(struct ib_qp qp, struct ib_qp_attr qp_attr,
	175	int qp_attr_mask, struct ib_udata *udata);
	176	int bnxt_re_query_qp(struct ib_qp qp, struct ib_qp_attr qp_attr,
	177	int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
	178	int bnxt_re_destroy_qp(struct ib_qp *qp);
	179	int bnxt_re_post_send(struct ib_qp qp, struct ib_send_wr send_wr,
	180	struct ib_send_wr **bad_send_wr);
	181	int bnxt_re_post_recv(struct ib_qp qp, struct ib_recv_wr recv_wr,
	182	struct ib_recv_wr **bad_recv_wr);
	183	struct ib_cq bnxt_re_create_cq(struct ib_device ibdev,
	184	const struct ib_cq_init_attr *attr,
	185	struct ib_ucontext *context,
	186	struct ib_udata *udata);
	187	int bnxt_re_destroy_cq(struct ib_cq *cq);
	188	int bnxt_re_poll_cq(struct ib_cq cq, int num_entries, struct ib_wc wc);
	189	int bnxt_re_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
	190	struct ib_mr bnxt_re_get_dma_mr(struct ib_pd pd, int mr_access_flags);
	191
	192	int bnxt_re_map_mr_sg(struct ib_mr ib_mr, struct scatterlist sg, int sg_nents,
	193	unsigned int *sg_offset);
	194	struct ib_mr bnxt_re_alloc_mr(struct ib_pd ib_pd, enum ib_mr_type mr_type,
	195	u32 max_num_sg);
	196	int bnxt_re_dereg_mr(struct ib_mr *mr);
9152e0b7 EW	197	struct ib_mw bnxt_re_alloc_mw(struct ib_pd ib_pd, enum ib_mw_type type,
	198	struct ib_udata *udata);
	199	int bnxt_re_dealloc_mw(struct ib_mw *mw);
1ac5a404 SX	200	struct ib_mr bnxt_re_reg_user_mr(struct ib_pd pd, u64 start, u64 length,
	201	u64 virt_addr, int mr_access_flags,
	202	struct ib_udata *udata);
	203	struct ib_ucontext bnxt_re_alloc_ucontext(struct ib_device ibdev,
	204	struct ib_udata *udata);
	205	int bnxt_re_dealloc_ucontext(struct ib_ucontext *context);
	206	int bnxt_re_mmap(struct ib_ucontext context, struct vm_area_struct vma);
	207	#endif /* __BNXT_RE_IB_VERBS_H__ */