[linux-2.6-block.git] / drivers / infiniband / hw / vmw_pvrdma / pvrdma.h

/*
 * Copyright (c) 2012-2016 VMware, Inc.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of EITHER the GNU General Public License
 * version 2 as published by the Free Software Foundation or the BSD
 * 2-Clause License. This program is distributed in the hope that it
 * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License version 2 for more details at
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program available in the file COPYING in the main
 * directory of this source tree.
 *
 * The BSD 2-Clause License
 *
 *     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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
 * COPYRIGHT HOLDER 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.
 */

#ifndef __PVRDMA_H__
#define __PVRDMA_H__

#include <linux/compiler.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/semaphore.h>
#include <linux/workqueue.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_verbs.h>
#include <rdma/vmw_pvrdma-abi.h>

#include "pvrdma_ring.h"
#include "pvrdma_dev_api.h"
#include "pvrdma_verbs.h"

/* NOT the same as BIT_MASK(). */
#define PVRDMA_MASK(n) ((n << 1) - 1)

/*
 * VMware PVRDMA PCI device id.
 */
#define PCI_DEVICE_ID_VMWARE_PVRDMA	0x0820

#define PVRDMA_NUM_RING_PAGES		4
#define PVRDMA_QP_NUM_HEADER_PAGES	1

struct pvrdma_dev;

struct pvrdma_page_dir {
	dma_addr_t dir_dma;
	u64 *dir;
	int ntables;
	u64 **tables;
	u64 npages;
	void **pages;
};

struct pvrdma_cq {
	struct ib_cq ibcq;
	int offset;
	spinlock_t cq_lock; /* Poll lock. */
	struct pvrdma_uar_map *uar;
	struct ib_umem *umem;
	struct pvrdma_ring_state *ring_state;
	struct pvrdma_page_dir pdir;
	u32 cq_handle;
	bool is_kernel;
	atomic_t refcnt;
	wait_queue_head_t wait;
};

struct pvrdma_id_table {
	u32 last;
	u32 top;
	u32 max;
	u32 mask;
	spinlock_t lock; /* Table lock. */
	unsigned long *table;
};

struct pvrdma_uar_map {
	unsigned long pfn;
	void __iomem *map;
	int index;
};

struct pvrdma_uar_table {
	struct pvrdma_id_table tbl;
	int size;
};

struct pvrdma_ucontext {
	struct ib_ucontext ibucontext;
	struct pvrdma_dev *dev;
	struct pvrdma_uar_map uar;
	u64 ctx_handle;
};

struct pvrdma_pd {
	struct ib_pd ibpd;
	u32 pdn;
	u32 pd_handle;
	int privileged;
};

struct pvrdma_mr {
	u32 mr_handle;
	u64 iova;
	u64 size;
};

struct pvrdma_user_mr {
	struct ib_mr ibmr;
	struct ib_umem *umem;
	struct pvrdma_mr mmr;
	struct pvrdma_page_dir pdir;
	u64 *pages;
	u32 npages;
	u32 max_pages;
	u32 page_shift;
};

struct pvrdma_wq {
	struct pvrdma_ring *ring;
	spinlock_t lock; /* Work queue lock. */
	int wqe_cnt;
	int wqe_size;
	int max_sg;
	int offset;
};

struct pvrdma_ah {
	struct ib_ah ibah;
	struct pvrdma_av av;
};

struct pvrdma_srq {
	struct ib_srq ibsrq;
	int offset;
	spinlock_t lock; /* SRQ lock. */
	int wqe_cnt;
	int wqe_size;
	int max_gs;
	struct ib_umem *umem;
	struct pvrdma_ring_state *ring;
	struct pvrdma_page_dir pdir;
	u32 srq_handle;
	int npages;
	refcount_t refcnt;
	wait_queue_head_t wait;
};

struct pvrdma_qp {
	struct ib_qp ibqp;
	u32 qp_handle;
	u32 qkey;
	struct pvrdma_wq sq;
	struct pvrdma_wq rq;
	struct ib_umem *rumem;
	struct ib_umem *sumem;
	struct pvrdma_page_dir pdir;
	struct pvrdma_srq *srq;
	int npages;
	int npages_send;
	int npages_recv;
	u32 flags;
	u8 port;
	u8 state;
	bool is_kernel;
	struct mutex mutex; /* QP state mutex. */
	atomic_t refcnt;
	wait_queue_head_t wait;
};

struct pvrdma_dev {
	/* PCI device-related information. */
	struct ib_device ib_dev;
	struct pci_dev *pdev;
	void __iomem *regs;
	struct pvrdma_device_shared_region *dsr; /* Shared region pointer */
	dma_addr_t dsrbase; /* Shared region base address */
	void *cmd_slot;
	void *resp_slot;
	unsigned long flags;
	struct list_head device_link;
	unsigned int dsr_version;

	/* Locking and interrupt information. */
	spinlock_t cmd_lock; /* Command lock. */
	struct semaphore cmd_sema;
	struct completion cmd_done;
	unsigned int nr_vectors;

	/* RDMA-related device information. */
	union ib_gid *sgid_tbl;
	struct pvrdma_ring_state *async_ring_state;
	struct pvrdma_page_dir async_pdir;
	struct pvrdma_ring_state *cq_ring_state;
	struct pvrdma_page_dir cq_pdir;
	struct pvrdma_cq **cq_tbl;
	spinlock_t cq_tbl_lock;
	struct pvrdma_srq **srq_tbl;
	spinlock_t srq_tbl_lock;
	struct pvrdma_qp **qp_tbl;
	spinlock_t qp_tbl_lock;
	struct pvrdma_uar_table uar_table;
	struct pvrdma_uar_map driver_uar;
	__be64 sys_image_guid;
	spinlock_t desc_lock; /* Device modification lock. */
	u32 port_cap_mask;
	struct mutex port_mutex; /* Port modification mutex. */
	bool ib_active;
	atomic_t num_qps;
	atomic_t num_cqs;
	atomic_t num_srqs;
	atomic_t num_pds;
	atomic_t num_ahs;

	/* Network device information. */
	struct net_device *netdev;
	struct notifier_block nb_netdev;
};

struct pvrdma_netdevice_work {
	struct work_struct work;
	struct net_device *event_netdev;
	unsigned long event;
};

static inline struct pvrdma_dev *to_vdev(struct ib_device *ibdev)
{
	return container_of(ibdev, struct pvrdma_dev, ib_dev);
}

static inline struct
pvrdma_ucontext *to_vucontext(struct ib_ucontext *ibucontext)
{
	return container_of(ibucontext, struct pvrdma_ucontext, ibucontext);
}

static inline struct pvrdma_pd *to_vpd(struct ib_pd *ibpd)
{
	return container_of(ibpd, struct pvrdma_pd, ibpd);
}

static inline struct pvrdma_cq *to_vcq(struct ib_cq *ibcq)
{
	return container_of(ibcq, struct pvrdma_cq, ibcq);
}

static inline struct pvrdma_srq *to_vsrq(struct ib_srq *ibsrq)
{
	return container_of(ibsrq, struct pvrdma_srq, ibsrq);
}

static inline struct pvrdma_user_mr *to_vmr(struct ib_mr *ibmr)
{
	return container_of(ibmr, struct pvrdma_user_mr, ibmr);
}

static inline struct pvrdma_qp *to_vqp(struct ib_qp *ibqp)
{
	return container_of(ibqp, struct pvrdma_qp, ibqp);
}

static inline struct pvrdma_ah *to_vah(struct ib_ah *ibah)
{
	return container_of(ibah, struct pvrdma_ah, ibah);
}

static inline void pvrdma_write_reg(struct pvrdma_dev *dev, u32 reg, u32 val)
{
	writel(cpu_to_le32(val), dev->regs + reg);
}

static inline u32 pvrdma_read_reg(struct pvrdma_dev *dev, u32 reg)
{
	return le32_to_cpu(readl(dev->regs + reg));
}

static inline void pvrdma_write_uar_cq(struct pvrdma_dev *dev, u32 val)
{
	writel(cpu_to_le32(val), dev->driver_uar.map + PVRDMA_UAR_CQ_OFFSET);
}

static inline void pvrdma_write_uar_qp(struct pvrdma_dev *dev, u32 val)
{
	writel(cpu_to_le32(val), dev->driver_uar.map + PVRDMA_UAR_QP_OFFSET);
}

static inline void *pvrdma_page_dir_get_ptr(struct pvrdma_page_dir *pdir,
					    u64 offset)
{
	return pdir->pages[offset / PAGE_SIZE] + (offset % PAGE_SIZE);
}

static inline enum pvrdma_mtu ib_mtu_to_pvrdma(enum ib_mtu mtu)
{
	return (enum pvrdma_mtu)mtu;
}

static inline enum ib_mtu pvrdma_mtu_to_ib(enum pvrdma_mtu mtu)
{
	return (enum ib_mtu)mtu;
}

static inline enum pvrdma_port_state ib_port_state_to_pvrdma(
					enum ib_port_state state)
{
	return (enum pvrdma_port_state)state;
}

static inline enum ib_port_state pvrdma_port_state_to_ib(
					enum pvrdma_port_state state)
{
	return (enum ib_port_state)state;
}

static inline int ib_port_cap_flags_to_pvrdma(int flags)
{
	return flags & PVRDMA_MASK(PVRDMA_PORT_CAP_FLAGS_MAX);
}

static inline int pvrdma_port_cap_flags_to_ib(int flags)
{
	return flags;
}

static inline enum pvrdma_port_width ib_port_width_to_pvrdma(
					enum ib_port_width width)
{
	return (enum pvrdma_port_width)width;
}

static inline enum ib_port_width pvrdma_port_width_to_ib(
					enum pvrdma_port_width width)
{
	return (enum ib_port_width)width;
}

static inline enum pvrdma_port_speed ib_port_speed_to_pvrdma(
					enum ib_port_speed speed)
{
	return (enum pvrdma_port_speed)speed;
}

static inline enum ib_port_speed pvrdma_port_speed_to_ib(
					enum pvrdma_port_speed speed)
{
	return (enum ib_port_speed)speed;
}

static inline int pvrdma_qp_attr_mask_to_ib(int attr_mask)
{
	return attr_mask;
}

static inline int ib_qp_attr_mask_to_pvrdma(int attr_mask)
{
	return attr_mask & PVRDMA_MASK(PVRDMA_QP_ATTR_MASK_MAX);
}

static inline enum pvrdma_mig_state ib_mig_state_to_pvrdma(
					enum ib_mig_state state)
{
	return (enum pvrdma_mig_state)state;
}

static inline enum ib_mig_state pvrdma_mig_state_to_ib(
					enum pvrdma_mig_state state)
{
	return (enum ib_mig_state)state;
}

static inline int ib_access_flags_to_pvrdma(int flags)
{
	return flags;
}

static inline int pvrdma_access_flags_to_ib(int flags)
{
	return flags & PVRDMA_MASK(PVRDMA_ACCESS_FLAGS_MAX);
}

static inline enum pvrdma_qp_type ib_qp_type_to_pvrdma(enum ib_qp_type type)
{
	return (enum pvrdma_qp_type)type;
}

static inline enum ib_qp_type pvrdma_qp_type_to_ib(enum pvrdma_qp_type type)
{
	return (enum ib_qp_type)type;
}

static inline enum pvrdma_qp_state ib_qp_state_to_pvrdma(enum ib_qp_state state)
{
	return (enum pvrdma_qp_state)state;
}

static inline enum ib_qp_state pvrdma_qp_state_to_ib(enum pvrdma_qp_state state)
{
	return (enum ib_qp_state)state;
}

static inline enum pvrdma_wr_opcode ib_wr_opcode_to_pvrdma(enum ib_wr_opcode op)
{
	return (enum pvrdma_wr_opcode)op;
}

static inline enum ib_wc_status pvrdma_wc_status_to_ib(
					enum pvrdma_wc_status status)
{
	return (enum ib_wc_status)status;
}

static inline int pvrdma_wc_opcode_to_ib(unsigned int opcode)
{
	switch (opcode) {
	case PVRDMA_WC_SEND:
		return IB_WC_SEND;
	case PVRDMA_WC_RDMA_WRITE:
		return IB_WC_RDMA_WRITE;
	case PVRDMA_WC_RDMA_READ:
		return IB_WC_RDMA_READ;
	case PVRDMA_WC_COMP_SWAP:
		return IB_WC_COMP_SWAP;
	case PVRDMA_WC_FETCH_ADD:
		return IB_WC_FETCH_ADD;
	case PVRDMA_WC_LOCAL_INV:
		return IB_WC_LOCAL_INV;
	case PVRDMA_WC_FAST_REG_MR:
		return IB_WC_REG_MR;
	case PVRDMA_WC_MASKED_COMP_SWAP:
		return IB_WC_MASKED_COMP_SWAP;
	case PVRDMA_WC_MASKED_FETCH_ADD:
		return IB_WC_MASKED_FETCH_ADD;
	case PVRDMA_WC_RECV:
		return IB_WC_RECV;
	case PVRDMA_WC_RECV_RDMA_WITH_IMM:
		return IB_WC_RECV_RDMA_WITH_IMM;
	default:
		return IB_WC_SEND;
	}
}

static inline int pvrdma_wc_flags_to_ib(int flags)
{
	return flags;
}

static inline int ib_send_flags_to_pvrdma(int flags)
{
	return flags & PVRDMA_MASK(PVRDMA_SEND_FLAGS_MAX);
}

void pvrdma_qp_cap_to_ib(struct ib_qp_cap *dst,
			 const struct pvrdma_qp_cap *src);
void ib_qp_cap_to_pvrdma(struct pvrdma_qp_cap *dst,
			 const struct ib_qp_cap *src);
void pvrdma_gid_to_ib(union ib_gid *dst, const union pvrdma_gid *src);
void ib_gid_to_pvrdma(union pvrdma_gid *dst, const union ib_gid *src);
void pvrdma_global_route_to_ib(struct ib_global_route *dst,
			       const struct pvrdma_global_route *src);
void ib_global_route_to_pvrdma(struct pvrdma_global_route *dst,
			       const struct ib_global_route *src);
void pvrdma_ah_attr_to_rdma(struct rdma_ah_attr *dst,
			    const struct pvrdma_ah_attr *src);
void rdma_ah_attr_to_pvrdma(struct pvrdma_ah_attr *dst,
			    const struct rdma_ah_attr *src);
u8 ib_gid_type_to_pvrdma(enum ib_gid_type gid_type);

int pvrdma_uar_table_init(struct pvrdma_dev *dev);
void pvrdma_uar_table_cleanup(struct pvrdma_dev *dev);

int pvrdma_uar_alloc(struct pvrdma_dev *dev, struct pvrdma_uar_map *uar);
void pvrdma_uar_free(struct pvrdma_dev *dev, struct pvrdma_uar_map *uar);

void _pvrdma_flush_cqe(struct pvrdma_qp *qp, struct pvrdma_cq *cq);

int pvrdma_page_dir_init(struct pvrdma_dev *dev, struct pvrdma_page_dir *pdir,
			 u64 npages, bool alloc_pages);
void pvrdma_page_dir_cleanup(struct pvrdma_dev *dev,
			     struct pvrdma_page_dir *pdir);
int pvrdma_page_dir_insert_dma(struct pvrdma_page_dir *pdir, u64 idx,
			       dma_addr_t daddr);
int pvrdma_page_dir_insert_umem(struct pvrdma_page_dir *pdir,
				struct ib_umem *umem, u64 offset);
dma_addr_t pvrdma_page_dir_get_dma(struct pvrdma_page_dir *pdir, u64 idx);
int pvrdma_page_dir_insert_page_list(struct pvrdma_page_dir *pdir,
				     u64 *page_list, int num_pages);

int pvrdma_cmd_post(struct pvrdma_dev *dev, union pvrdma_cmd_req *req,
		    union pvrdma_cmd_resp *rsp, unsigned resp_code);

#endif /* __PVRDMA_H__ */
Commit	Line	Data
29c8d9eb AR	1	/*
	2	* Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of EITHER the GNU General Public License
	6	* version 2 as published by the Free Software Foundation or the BSD
	7	* 2-Clause License. This program is distributed in the hope that it
	8	* will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
	9	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	10	* See the GNU General Public License version 2 for more details at
	11	* http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program available in the file COPYING in the main
	15	* directory of this source tree.
	16	*
	17	* The BSD 2-Clause License
	18	*
	19	* Redistribution and use in source and binary forms, with or
	20	* without modification, are permitted provided that the following
	21	* conditions are met:
	22	*
	23	* - Redistributions of source code must retain the above
	24	* copyright notice, this list of conditions and the following
	25	* disclaimer.
	26	*
	27	* - Redistributions in binary form must reproduce the above
	28	* copyright notice, this list of conditions and the following
	29	* disclaimer in the documentation and/or other materials
	30	* provided with the distribution.
	31	*
	32	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	33	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	34	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	35	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	36	* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
	37	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	38	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	39	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	40	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	41	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	42	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	43	* OF THE POSSIBILITY OF SUCH DAMAGE.
	44	*/
	45
	46	#ifndef __PVRDMA_H__
	47	#define __PVRDMA_H__
	48
	49	#include <linux/compiler.h>
	50	#include <linux/interrupt.h>
	51	#include <linux/list.h>
	52	#include <linux/mutex.h>
	53	#include <linux/pci.h>
	54	#include <linux/semaphore.h>
	55	#include <linux/workqueue.h>
	56	#include <rdma/ib_umem.h>
	57	#include <rdma/ib_verbs.h>
	58	#include <rdma/vmw_pvrdma-abi.h>
	59
	60	#include "pvrdma_ring.h"
	61	#include "pvrdma_dev_api.h"
	62	#include "pvrdma_verbs.h"
	63
	64	/* NOT the same as BIT_MASK(). */
65	#define PVRDMA_MASK(n) ((n << 1) - 1)
66
67	/*
68	* VMware PVRDMA PCI device id.
69	*/
70	#define PCI_DEVICE_ID_VMWARE_PVRDMA 0x0820
71
6332dee8	72	#define PVRDMA_NUM_RING_PAGES 4
e51c2fb0	73	#define PVRDMA_QP_NUM_HEADER_PAGES 1
6332dee8	74
29c8d9eb AR	75	struct pvrdma_dev;
	76
	77	struct pvrdma_page_dir {
	78	dma_addr_t dir_dma;
	79	u64 *dir;
	80	int ntables;
	81	u64 **tables;
	82	u64 npages;
	83	void **pages;
	84	};
	85
	86	struct pvrdma_cq {
	87	struct ib_cq ibcq;
	88	int offset;
	89	spinlock_t cq_lock; /* Poll lock. */
	90	struct pvrdma_uar_map *uar;
	91	struct ib_umem *umem;
	92	struct pvrdma_ring_state *ring_state;
	93	struct pvrdma_page_dir pdir;
	94	u32 cq_handle;
	95	bool is_kernel;
	96	atomic_t refcnt;
	97	wait_queue_head_t wait;
	98	};
	99
	100	struct pvrdma_id_table {
	101	u32 last;
	102	u32 top;
	103	u32 max;
	104	u32 mask;
	105	spinlock_t lock; /* Table lock. */
	106	unsigned long *table;
	107	};
	108
	109	struct pvrdma_uar_map {
	110	unsigned long pfn;
	111	void __iomem *map;
	112	int index;
	113	};
	114
	115	struct pvrdma_uar_table {
	116	struct pvrdma_id_table tbl;
	117	int size;
	118	};
	119
	120	struct pvrdma_ucontext {
	121	struct ib_ucontext ibucontext;
	122	struct pvrdma_dev *dev;
	123	struct pvrdma_uar_map uar;
	124	u64 ctx_handle;
	125	};
	126
	127	struct pvrdma_pd {
	128	struct ib_pd ibpd;
	129	u32 pdn;
	130	u32 pd_handle;
	131	int privileged;
	132	};
	133
	134	struct pvrdma_mr {
	135	u32 mr_handle;
	136	u64 iova;
	137	u64 size;
	138	};
139
140	struct pvrdma_user_mr {
141	struct ib_mr ibmr;
142	struct ib_umem *umem;
143	struct pvrdma_mr mmr;
144	struct pvrdma_page_dir pdir;
145	u64 *pages;
146	u32 npages;
147	u32 max_pages;
148	u32 page_shift;
149	};
150
151	struct pvrdma_wq {
152	struct pvrdma_ring *ring;
153	spinlock_t lock; /* Work queue lock. */
154	int wqe_cnt;
155	int wqe_size;
156	int max_sg;
157	int offset;
158	};
159
160	struct pvrdma_ah {
161	struct ib_ah ibah;
162	struct pvrdma_av av;
163	};
164
8b10ba78 BT	165	struct pvrdma_srq {
	166	struct ib_srq ibsrq;
	167	int offset;
	168	spinlock_t lock; /* SRQ lock. */
	169	int wqe_cnt;
	170	int wqe_size;
	171	int max_gs;
	172	struct ib_umem *umem;
	173	struct pvrdma_ring_state *ring;
	174	struct pvrdma_page_dir pdir;
	175	u32 srq_handle;
	176	int npages;
	177	refcount_t refcnt;
	178	wait_queue_head_t wait;
	179	};
	180
29c8d9eb AR	181	struct pvrdma_qp {
	182	struct ib_qp ibqp;
	183	u32 qp_handle;
	184	u32 qkey;
	185	struct pvrdma_wq sq;
	186	struct pvrdma_wq rq;
	187	struct ib_umem *rumem;
	188	struct ib_umem *sumem;
	189	struct pvrdma_page_dir pdir;
8b10ba78	190	struct pvrdma_srq *srq;
29c8d9eb AR	191	int npages;
	192	int npages_send;
	193	int npages_recv;
	194	u32 flags;
	195	u8 port;
	196	u8 state;
	197	bool is_kernel;
	198	struct mutex mutex; /* QP state mutex. */
	199	atomic_t refcnt;
	200	wait_queue_head_t wait;
	201	};
	202
	203	struct pvrdma_dev {
	204	/* PCI device-related information. */
	205	struct ib_device ib_dev;
	206	struct pci_dev *pdev;
	207	void __iomem *regs;
	208	struct pvrdma_device_shared_region dsr; / Shared region pointer */
	209	dma_addr_t dsrbase; /* Shared region base address */
	210	void *cmd_slot;
	211	void *resp_slot;
	212	unsigned long flags;
	213	struct list_head device_link;
05297b66	214	unsigned int dsr_version;
29c8d9eb AR	215
	216	/* Locking and interrupt information. */
	217	spinlock_t cmd_lock; /* Command lock. */
	218	struct semaphore cmd_sema;
	219	struct completion cmd_done;
7bf3976d	220	unsigned int nr_vectors;
29c8d9eb AR	221
	222	/* RDMA-related device information. */
	223	union ib_gid *sgid_tbl;
	224	struct pvrdma_ring_state *async_ring_state;
	225	struct pvrdma_page_dir async_pdir;
	226	struct pvrdma_ring_state *cq_ring_state;
	227	struct pvrdma_page_dir cq_pdir;
	228	struct pvrdma_cq **cq_tbl;
	229	spinlock_t cq_tbl_lock;
8b10ba78 BT	230	struct pvrdma_srq **srq_tbl;
8b10ba78 BT	231	spinlock_t srq_tbl_lock;
29c8d9eb AR	232	struct pvrdma_qp **qp_tbl;
	233	spinlock_t qp_tbl_lock;
	234	struct pvrdma_uar_table uar_table;
	235	struct pvrdma_uar_map driver_uar;
	236	__be64 sys_image_guid;
	237	spinlock_t desc_lock; /* Device modification lock. */
	238	u32 port_cap_mask;
	239	struct mutex port_mutex; /* Port modification mutex. */
	240	bool ib_active;
	241	atomic_t num_qps;
	242	atomic_t num_cqs;
8b10ba78	243	atomic_t num_srqs;
29c8d9eb AR	244	atomic_t num_pds;
	245	atomic_t num_ahs;
	246
	247	/* Network device information. */
	248	struct net_device *netdev;
	249	struct notifier_block nb_netdev;
	250	};
	251
	252	struct pvrdma_netdevice_work {
	253	struct work_struct work;
	254	struct net_device *event_netdev;
	255	unsigned long event;
	256	};
	257
	258	static inline struct pvrdma_dev to_vdev(struct ib_device ibdev)
	259	{
	260	return container_of(ibdev, struct pvrdma_dev, ib_dev);
	261	}
	262
	263	static inline struct
	264	pvrdma_ucontext to_vucontext(struct ib_ucontext ibucontext)
	265	{
	266	return container_of(ibucontext, struct pvrdma_ucontext, ibucontext);
	267	}
	268
	269	static inline struct pvrdma_pd to_vpd(struct ib_pd ibpd)
	270	{
	271	return container_of(ibpd, struct pvrdma_pd, ibpd);
	272	}
	273
	274	static inline struct pvrdma_cq to_vcq(struct ib_cq ibcq)
	275	{
	276	return container_of(ibcq, struct pvrdma_cq, ibcq);
	277	}
	278
8b10ba78 BT	279	static inline struct pvrdma_srq to_vsrq(struct ib_srq ibsrq)
	280	{
	281	return container_of(ibsrq, struct pvrdma_srq, ibsrq);
	282	}
	283
29c8d9eb AR	284	static inline struct pvrdma_user_mr to_vmr(struct ib_mr ibmr)
	285	{
	286	return container_of(ibmr, struct pvrdma_user_mr, ibmr);
	287	}
	288
	289	static inline struct pvrdma_qp to_vqp(struct ib_qp ibqp)
	290	{
	291	return container_of(ibqp, struct pvrdma_qp, ibqp);
	292	}
	293
	294	static inline struct pvrdma_ah to_vah(struct ib_ah ibah)
	295	{
	296	return container_of(ibah, struct pvrdma_ah, ibah);
	297	}
	298
	299	static inline void pvrdma_write_reg(struct pvrdma_dev *dev, u32 reg, u32 val)
	300	{
	301	writel(cpu_to_le32(val), dev->regs + reg);
	302	}
	303
	304	static inline u32 pvrdma_read_reg(struct pvrdma_dev *dev, u32 reg)
	305	{
	306	return le32_to_cpu(readl(dev->regs + reg));
	307	}
	308
	309	static inline void pvrdma_write_uar_cq(struct pvrdma_dev *dev, u32 val)
	310	{
	311	writel(cpu_to_le32(val), dev->driver_uar.map + PVRDMA_UAR_CQ_OFFSET);
	312	}
	313
	314	static inline void pvrdma_write_uar_qp(struct pvrdma_dev *dev, u32 val)
	315	{
	316	writel(cpu_to_le32(val), dev->driver_uar.map + PVRDMA_UAR_QP_OFFSET);
	317	}
	318
	319	static inline void pvrdma_page_dir_get_ptr(struct pvrdma_page_dir pdir,
	320	u64 offset)
	321	{
	322	return pdir->pages[offset / PAGE_SIZE] + (offset % PAGE_SIZE);
	323	}
	324
	325	static inline enum pvrdma_mtu ib_mtu_to_pvrdma(enum ib_mtu mtu)
	326	{
	327	return (enum pvrdma_mtu)mtu;
	328	}
	329
	330	static inline enum ib_mtu pvrdma_mtu_to_ib(enum pvrdma_mtu mtu)
	331	{
	332	return (enum ib_mtu)mtu;
	333	}
	334
	335	static inline enum pvrdma_port_state ib_port_state_to_pvrdma(
	336	enum ib_port_state state)
	337	{
	338	return (enum pvrdma_port_state)state;
	339	}
	340
	341	static inline enum ib_port_state pvrdma_port_state_to_ib(
	342	enum pvrdma_port_state state)
	343	{
	344	return (enum ib_port_state)state;
	345	}
	346
	347	static inline int ib_port_cap_flags_to_pvrdma(int flags)
348	{
349	return flags & PVRDMA_MASK(PVRDMA_PORT_CAP_FLAGS_MAX);
350	}
351
352	static inline int pvrdma_port_cap_flags_to_ib(int flags)
353	{
354	return flags;
355	}
356
357	static inline enum pvrdma_port_width ib_port_width_to_pvrdma(
358	enum ib_port_width width)
359	{
360	return (enum pvrdma_port_width)width;
361	}
362
363	static inline enum ib_port_width pvrdma_port_width_to_ib(
364	enum pvrdma_port_width width)
365	{
366	return (enum ib_port_width)width;
367	}
368
369	static inline enum pvrdma_port_speed ib_port_speed_to_pvrdma(
370	enum ib_port_speed speed)
371	{
372	return (enum pvrdma_port_speed)speed;
373	}
374
375	static inline enum ib_port_speed pvrdma_port_speed_to_ib(
376	enum pvrdma_port_speed speed)
377	{
378	return (enum ib_port_speed)speed;
379	}
380
381	static inline int pvrdma_qp_attr_mask_to_ib(int attr_mask)
382	{
383	return attr_mask;
384	}
385
386	static inline int ib_qp_attr_mask_to_pvrdma(int attr_mask)
387	{
388	return attr_mask & PVRDMA_MASK(PVRDMA_QP_ATTR_MASK_MAX);
389	}
390
391	static inline enum pvrdma_mig_state ib_mig_state_to_pvrdma(
392	enum ib_mig_state state)
393	{
394	return (enum pvrdma_mig_state)state;
395	}
396
397	static inline enum ib_mig_state pvrdma_mig_state_to_ib(
398	enum pvrdma_mig_state state)
399	{
400	return (enum ib_mig_state)state;
401	}
402
403	static inline int ib_access_flags_to_pvrdma(int flags)
404	{
405	return flags;
406	}
407
408	static inline int pvrdma_access_flags_to_ib(int flags)
409	{
410	return flags & PVRDMA_MASK(PVRDMA_ACCESS_FLAGS_MAX);
411	}
412
413	static inline enum pvrdma_qp_type ib_qp_type_to_pvrdma(enum ib_qp_type type)
414	{
415	return (enum pvrdma_qp_type)type;
416	}
417
418	static inline enum ib_qp_type pvrdma_qp_type_to_ib(enum pvrdma_qp_type type)
419	{
420	return (enum ib_qp_type)type;
421	}
422
423	static inline enum pvrdma_qp_state ib_qp_state_to_pvrdma(enum ib_qp_state state)
424	{
425	return (enum pvrdma_qp_state)state;
426	}
427
428	static inline enum ib_qp_state pvrdma_qp_state_to_ib(enum pvrdma_qp_state state)
429	{
430	return (enum ib_qp_state)state;
431	}
432
433	static inline enum pvrdma_wr_opcode ib_wr_opcode_to_pvrdma(enum ib_wr_opcode op)
434	{
435	return (enum pvrdma_wr_opcode)op;
436	}
437
438	static inline enum ib_wc_status pvrdma_wc_status_to_ib(
439	enum pvrdma_wc_status status)
440	{
441	return (enum ib_wc_status)status;
442	}
443
01df7f5a AR	444	static inline int pvrdma_wc_opcode_to_ib(unsigned int opcode)
	445	{
	446	switch (opcode) {
	447	case PVRDMA_WC_SEND:
	448	return IB_WC_SEND;
	449	case PVRDMA_WC_RDMA_WRITE:
	450	return IB_WC_RDMA_WRITE;
	451	case PVRDMA_WC_RDMA_READ:
	452	return IB_WC_RDMA_READ;
	453	case PVRDMA_WC_COMP_SWAP:
	454	return IB_WC_COMP_SWAP;
	455	case PVRDMA_WC_FETCH_ADD:
	456	return IB_WC_FETCH_ADD;
	457	case PVRDMA_WC_LOCAL_INV:
	458	return IB_WC_LOCAL_INV;
	459	case PVRDMA_WC_FAST_REG_MR:
	460	return IB_WC_REG_MR;
	461	case PVRDMA_WC_MASKED_COMP_SWAP:
	462	return IB_WC_MASKED_COMP_SWAP;
	463	case PVRDMA_WC_MASKED_FETCH_ADD:
	464	return IB_WC_MASKED_FETCH_ADD;
	465	case PVRDMA_WC_RECV:
	466	return IB_WC_RECV;
	467	case PVRDMA_WC_RECV_RDMA_WITH_IMM:
	468	return IB_WC_RECV_RDMA_WITH_IMM;
	469	default:
	470	return IB_WC_SEND;
	471	}
29c8d9eb AR	472	}
	473
	474	static inline int pvrdma_wc_flags_to_ib(int flags)
	475	{
	476	return flags;
	477	}
	478
	479	static inline int ib_send_flags_to_pvrdma(int flags)
	480	{
	481	return flags & PVRDMA_MASK(PVRDMA_SEND_FLAGS_MAX);
	482	}
	483
	484	void pvrdma_qp_cap_to_ib(struct ib_qp_cap *dst,
	485	const struct pvrdma_qp_cap *src);
	486	void ib_qp_cap_to_pvrdma(struct pvrdma_qp_cap *dst,
	487	const struct ib_qp_cap *src);
	488	void pvrdma_gid_to_ib(union ib_gid dst, const union pvrdma_gid src);
	489	void ib_gid_to_pvrdma(union pvrdma_gid dst, const union ib_gid src);
	490	void pvrdma_global_route_to_ib(struct ib_global_route *dst,
	491	const struct pvrdma_global_route *src);
	492	void ib_global_route_to_pvrdma(struct pvrdma_global_route *dst,
	493	const struct ib_global_route *src);
f988653a DC	494	void pvrdma_ah_attr_to_rdma(struct rdma_ah_attr *dst,
	495	const struct pvrdma_ah_attr *src);
	496	void rdma_ah_attr_to_pvrdma(struct pvrdma_ah_attr *dst,
	497	const struct rdma_ah_attr *src);
05297b66	498	u8 ib_gid_type_to_pvrdma(enum ib_gid_type gid_type);
29c8d9eb AR	499
	500	int pvrdma_uar_table_init(struct pvrdma_dev *dev);
	501	void pvrdma_uar_table_cleanup(struct pvrdma_dev *dev);
	502
	503	int pvrdma_uar_alloc(struct pvrdma_dev dev, struct pvrdma_uar_map uar);
	504	void pvrdma_uar_free(struct pvrdma_dev dev, struct pvrdma_uar_map uar);
	505
	506	void _pvrdma_flush_cqe(struct pvrdma_qp qp, struct pvrdma_cq cq);
	507
	508	int pvrdma_page_dir_init(struct pvrdma_dev dev, struct pvrdma_page_dir pdir,
	509	u64 npages, bool alloc_pages);
	510	void pvrdma_page_dir_cleanup(struct pvrdma_dev *dev,
	511	struct pvrdma_page_dir *pdir);
	512	int pvrdma_page_dir_insert_dma(struct pvrdma_page_dir *pdir, u64 idx,
	513	dma_addr_t daddr);
	514	int pvrdma_page_dir_insert_umem(struct pvrdma_page_dir *pdir,
	515	struct ib_umem *umem, u64 offset);
	516	dma_addr_t pvrdma_page_dir_get_dma(struct pvrdma_page_dir *pdir, u64 idx);
	517	int pvrdma_page_dir_insert_page_list(struct pvrdma_page_dir *pdir,
	518	u64 *page_list, int num_pages);
	519
	520	int pvrdma_cmd_post(struct pvrdma_dev dev, union pvrdma_cmd_req req,
	521	union pvrdma_cmd_resp *rsp, unsigned resp_code);
	522
	523	#endif /* __PVRDMA_H__ */