drivers/infiniband/hw/vmw_pvrdma/pvrdma.h - LeafOS-Devices/android_kernel_samsung_exynos9820 - Gitiles

 /*
  * 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_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;
 	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_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_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_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)
 {
 	switch (op) {
 	case IB_WR_RDMA_WRITE:
 		return PVRDMA_WR_RDMA_WRITE;
 	case IB_WR_RDMA_WRITE_WITH_IMM:
 		return PVRDMA_WR_RDMA_WRITE_WITH_IMM;
 	case IB_WR_SEND:
 		return PVRDMA_WR_SEND;
 	case IB_WR_SEND_WITH_IMM:
 		return PVRDMA_WR_SEND_WITH_IMM;
 	case IB_WR_RDMA_READ:
 		return PVRDMA_WR_RDMA_READ;
 	case IB_WR_ATOMIC_CMP_AND_SWP:
 		return PVRDMA_WR_ATOMIC_CMP_AND_SWP;
 	case IB_WR_ATOMIC_FETCH_AND_ADD:
 		return PVRDMA_WR_ATOMIC_FETCH_AND_ADD;
 	case IB_WR_LSO:
 		return PVRDMA_WR_LSO;
 	case IB_WR_SEND_WITH_INV:
 		return PVRDMA_WR_SEND_WITH_INV;
 	case IB_WR_RDMA_READ_WITH_INV:
 		return PVRDMA_WR_RDMA_READ_WITH_INV;
 	case IB_WR_LOCAL_INV:
 		return PVRDMA_WR_LOCAL_INV;
 	case IB_WR_REG_MR:
 		return PVRDMA_WR_FAST_REG_MR;
 	case IB_WR_MASKED_ATOMIC_CMP_AND_SWP:
 		return PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP;
 	case IB_WR_MASKED_ATOMIC_FETCH_AND_ADD:
 		return PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD;
 	case IB_WR_REG_SIG_MR:
 		return PVRDMA_WR_REG_SIG_MR;
 	default:
 		return PVRDMA_WR_ERROR;
 	}
 }

 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__ */
	/*
	* 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_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;
	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_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_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_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)
	{
	switch (op) {
	case IB_WR_RDMA_WRITE:
	return PVRDMA_WR_RDMA_WRITE;
	case IB_WR_RDMA_WRITE_WITH_IMM:
	return PVRDMA_WR_RDMA_WRITE_WITH_IMM;
	case IB_WR_SEND:
	return PVRDMA_WR_SEND;
	case IB_WR_SEND_WITH_IMM:
	return PVRDMA_WR_SEND_WITH_IMM;
	case IB_WR_RDMA_READ:
	return PVRDMA_WR_RDMA_READ;
	case IB_WR_ATOMIC_CMP_AND_SWP:
	return PVRDMA_WR_ATOMIC_CMP_AND_SWP;
	case IB_WR_ATOMIC_FETCH_AND_ADD:
	return PVRDMA_WR_ATOMIC_FETCH_AND_ADD;
	case IB_WR_LSO:
	return PVRDMA_WR_LSO;
	case IB_WR_SEND_WITH_INV:
	return PVRDMA_WR_SEND_WITH_INV;
	case IB_WR_RDMA_READ_WITH_INV:
	return PVRDMA_WR_RDMA_READ_WITH_INV;
	case IB_WR_LOCAL_INV:
	return PVRDMA_WR_LOCAL_INV;
	case IB_WR_REG_MR:
	return PVRDMA_WR_FAST_REG_MR;
	case IB_WR_MASKED_ATOMIC_CMP_AND_SWP:
	return PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP;
	case IB_WR_MASKED_ATOMIC_FETCH_AND_ADD:
	return PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD;
	case IB_WR_REG_SIG_MR:
	return PVRDMA_WR_REG_SIG_MR;
	default:
	return PVRDMA_WR_ERROR;
	}
	}

	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__ */