drivers/infiniband/hw/cxgb3/iwch_provider.h - kernel/bruno - Git at Google

 /*
  * Copyright (c) 2006 Chelsio, 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.
  */
 #ifndef __IWCH_PROVIDER_H__
 #define __IWCH_PROVIDER_H__

 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <rdma/ib_verbs.h>
 #include <asm/types.h>
 #include "t3cdev.h"
 #include "iwch.h"
 #include "cxio_wr.h"
 #include "cxio_hal.h"

 struct iwch_pd {
 	struct ib_pd ibpd;
 	u32 pdid;
 	struct iwch_dev *rhp;
 };

 static inline struct iwch_pd *to_iwch_pd(struct ib_pd *ibpd)
 {
 	return container_of(ibpd, struct iwch_pd, ibpd);
 }

 struct tpt_attributes {
 	u32 stag;
 	u32 state:1;
 	u32 type:2;
 	u32 rsvd:1;
 	enum tpt_mem_perm perms;
 	u32 remote_invaliate_disable:1;
 	u32 zbva:1;
 	u32 mw_bind_enable:1;
 	u32 page_size:5;

 	u32 pdid;
 	u32 qpid;
 	u32 pbl_addr;
 	u32 len;
 	u64 va_fbo;
 	u32 pbl_size;
 };

 struct iwch_mr {
 	struct ib_mr ibmr;
 	struct ib_umem *umem;
 	struct iwch_dev *rhp;
 	u64 kva;
 	struct tpt_attributes attr;
 	u64 *pages;
 	u32 npages;
 };

 typedef struct iwch_mw iwch_mw_handle;

 static inline struct iwch_mr *to_iwch_mr(struct ib_mr *ibmr)
 {
 	return container_of(ibmr, struct iwch_mr, ibmr);
 }

 struct iwch_mw {
 	struct ib_mw ibmw;
 	struct iwch_dev *rhp;
 	u64 kva;
 	struct tpt_attributes attr;
 };

 static inline struct iwch_mw *to_iwch_mw(struct ib_mw *ibmw)
 {
 	return container_of(ibmw, struct iwch_mw, ibmw);
 }

 struct iwch_cq {
 	struct ib_cq ibcq;
 	struct iwch_dev *rhp;
 	struct t3_cq cq;
 	spinlock_t lock;
 	spinlock_t comp_handler_lock;
 	atomic_t refcnt;
 	wait_queue_head_t wait;
 	u32 __user *user_rptr_addr;
 };

 static inline struct iwch_cq *to_iwch_cq(struct ib_cq *ibcq)
 {
 	return container_of(ibcq, struct iwch_cq, ibcq);
 }

 enum IWCH_QP_FLAGS {
 	QP_QUIESCED = 0x01
 };

 struct iwch_mpa_attributes {
 	u8 initiator;
 	u8 recv_marker_enabled;
 	u8 xmit_marker_enabled;	/* iWARP: enable inbound Read Resp. */
 	u8 crc_enabled;
 	u8 version;	/* 0 or 1 */
 };

 struct iwch_qp_attributes {
 	u32 scq;
 	u32 rcq;
 	u32 sq_num_entries;
 	u32 rq_num_entries;
 	u32 sq_max_sges;
 	u32 sq_max_sges_rdma_write;
 	u32 rq_max_sges;
 	u32 state;
 	u8 enable_rdma_read;
 	u8 enable_rdma_write;	/* enable inbound Read Resp. */
 	u8 enable_bind;
 	u8 enable_mmid0_fastreg;	/* Enable STAG0 + Fast-register */
 	/*
 	 * Next QP state. If specify the current state, only the
 	 * QP attributes will be modified.
 	 */
 	u32 max_ord;
 	u32 max_ird;
 	u32 pd;	/* IN */
 	u32 next_state;
 	char terminate_buffer[52];
 	u32 terminate_msg_len;
 	u8 is_terminate_local;
 	struct iwch_mpa_attributes mpa_attr;	/* IN-OUT */
 	struct iwch_ep *llp_stream_handle;
 	char *stream_msg_buf;	/* Last stream msg. before Idle -> RTS */
 	u32 stream_msg_buf_len;	/* Only on Idle -> RTS */
 };

 struct iwch_qp {
 	struct ib_qp ibqp;
 	struct iwch_dev *rhp;
 	struct iwch_ep *ep;
 	struct iwch_qp_attributes attr;
 	struct t3_wq wq;
 	spinlock_t lock;
 	atomic_t refcnt;
 	wait_queue_head_t wait;
 	enum IWCH_QP_FLAGS flags;
 	struct timer_list timer;
 };

 static inline int qp_quiesced(struct iwch_qp *qhp)
 {
 	return qhp->flags & QP_QUIESCED;
 }

 static inline struct iwch_qp *to_iwch_qp(struct ib_qp *ibqp)
 {
 	return container_of(ibqp, struct iwch_qp, ibqp);
 }

 void iwch_qp_add_ref(struct ib_qp *qp);
 void iwch_qp_rem_ref(struct ib_qp *qp);

 struct iwch_ucontext {
 	struct ib_ucontext ibucontext;
 	struct cxio_ucontext uctx;
 	u32 key;
 	spinlock_t mmap_lock;
 	struct list_head mmaps;
 };

 static inline struct iwch_ucontext *to_iwch_ucontext(struct ib_ucontext *c)
 {
 	return container_of(c, struct iwch_ucontext, ibucontext);
 }

 struct iwch_mm_entry {
 	struct list_head entry;
 	u64 addr;
 	u32 key;
 	unsigned len;
 };

 static inline struct iwch_mm_entry *remove_mmap(struct iwch_ucontext *ucontext,
 						u32 key, unsigned len)
 {
 	struct list_head *pos, *nxt;
 	struct iwch_mm_entry *mm;

 	spin_lock(&ucontext->mmap_lock);
 	list_for_each_safe(pos, nxt, &ucontext->mmaps) {

 		mm = list_entry(pos, struct iwch_mm_entry, entry);
 		if (mm->key == key && mm->len == len) {
 			list_del_init(&mm->entry);
 			spin_unlock(&ucontext->mmap_lock);
 			PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__,
 			     key, (unsigned long long) mm->addr, mm->len);
 			return mm;
 		}
 	}
 	spin_unlock(&ucontext->mmap_lock);
 	return NULL;
 }

 static inline void insert_mmap(struct iwch_ucontext *ucontext,
 			       struct iwch_mm_entry *mm)
 {
 	spin_lock(&ucontext->mmap_lock);
 	PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__,
 	     mm->key, (unsigned long long) mm->addr, mm->len);
 	list_add_tail(&mm->entry, &ucontext->mmaps);
 	spin_unlock(&ucontext->mmap_lock);
 }

 enum iwch_qp_attr_mask {
 	IWCH_QP_ATTR_NEXT_STATE = 1 << 0,
 	IWCH_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
 	IWCH_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
 	IWCH_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
 	IWCH_QP_ATTR_MAX_ORD = 1 << 11,
 	IWCH_QP_ATTR_MAX_IRD = 1 << 12,
 	IWCH_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
 	IWCH_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
 	IWCH_QP_ATTR_MPA_ATTR = 1 << 24,
 	IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
 	IWCH_QP_ATTR_VALID_MODIFY = (IWCH_QP_ATTR_ENABLE_RDMA_READ |
 				     IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
 				     IWCH_QP_ATTR_MAX_ORD |
 				     IWCH_QP_ATTR_MAX_IRD |
 				     IWCH_QP_ATTR_LLP_STREAM_HANDLE |
 				     IWCH_QP_ATTR_STREAM_MSG_BUFFER |
 				     IWCH_QP_ATTR_MPA_ATTR |
 				     IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE)
 };

 int iwch_modify_qp(struct iwch_dev *rhp,
 				struct iwch_qp *qhp,
 				enum iwch_qp_attr_mask mask,
 				struct iwch_qp_attributes *attrs,
 				int internal);

 enum iwch_qp_state {
 	IWCH_QP_STATE_IDLE,
 	IWCH_QP_STATE_RTS,
 	IWCH_QP_STATE_ERROR,
 	IWCH_QP_STATE_TERMINATE,
 	IWCH_QP_STATE_CLOSING,
 	IWCH_QP_STATE_TOT
 };

 static inline int iwch_convert_state(enum ib_qp_state ib_state)
 {
 	switch (ib_state) {
 	case IB_QPS_RESET:
 	case IB_QPS_INIT:
 		return IWCH_QP_STATE_IDLE;
 	case IB_QPS_RTS:
 		return IWCH_QP_STATE_RTS;
 	case IB_QPS_SQD:
 		return IWCH_QP_STATE_CLOSING;
 	case IB_QPS_SQE:
 		return IWCH_QP_STATE_TERMINATE;
 	case IB_QPS_ERR:
 		return IWCH_QP_STATE_ERROR;
 	default:
 		return -1;
 	}
 }

 static inline u32 iwch_ib_to_tpt_access(int acc)
 {
 	return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) |
 	       (acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0) |
 	       (acc & IB_ACCESS_LOCAL_WRITE ? TPT_LOCAL_WRITE : 0) |
 	       (acc & IB_ACCESS_MW_BIND ? TPT_MW_BIND : 0) |
 	       TPT_LOCAL_READ;
 }

 static inline u32 iwch_ib_to_tpt_bind_access(int acc)
 {
 	return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) |
 	       (acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0);
 }

 enum iwch_mmid_state {
 	IWCH_STAG_STATE_VALID,
 	IWCH_STAG_STATE_INVALID
 };

 enum iwch_qp_query_flags {
 	IWCH_QP_QUERY_CONTEXT_NONE = 0x0,	/* No ctx; Only attrs */
 	IWCH_QP_QUERY_CONTEXT_GET = 0x1,	/* Get ctx + attrs */
 	IWCH_QP_QUERY_CONTEXT_SUSPEND = 0x2,	/* Not Supported */

 	/*
 	 * Quiesce QP context; Consumer
 	 * will NOT replay outstanding WR
 	 */
 	IWCH_QP_QUERY_CONTEXT_QUIESCE = 0x4,
 	IWCH_QP_QUERY_CONTEXT_REMOVE = 0x8,
 	IWCH_QP_QUERY_TEST_USERWRITE = 0x32	/* Test special */
 };

 u16 iwch_rqes_posted(struct iwch_qp *qhp);
 int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 		      struct ib_send_wr **bad_wr);
 int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 		      struct ib_recv_wr **bad_wr);
 int iwch_bind_mw(struct ib_qp *qp,
 			     struct ib_mw *mw,
 			     struct ib_mw_bind *mw_bind);
 int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
 int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg);
 int iwch_post_zb_read(struct iwch_ep *ep);
 int iwch_register_device(struct iwch_dev *dev);
 void iwch_unregister_device(struct iwch_dev *dev);
 void stop_read_rep_timer(struct iwch_qp *qhp);
 int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
 		      struct iwch_mr *mhp, int shift);
 int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
 					struct iwch_mr *mhp,
 					int shift,
 					int npages);
 int iwch_alloc_pbl(struct iwch_mr *mhp, int npages);
 void iwch_free_pbl(struct iwch_mr *mhp);
 int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset);
 int build_phys_page_list(struct ib_phys_buf *buffer_list,
 					int num_phys_buf,
 					u64 *iova_start,
 					u64 *total_size,
 					int *npages,
 					int *shift,
 					__be64 **page_list);


 #define IWCH_NODE_DESC "cxgb3 Chelsio Communications"

 #endif
	/*
	* Copyright (c) 2006 Chelsio, 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.
	*/
	#ifndef __IWCH_PROVIDER_H__
	#define __IWCH_PROVIDER_H__

	#include <linux/list.h>
	#include <linux/spinlock.h>
	#include <rdma/ib_verbs.h>
	#include <asm/types.h>
	#include "t3cdev.h"
	#include "iwch.h"
	#include "cxio_wr.h"
	#include "cxio_hal.h"

	struct iwch_pd {
	struct ib_pd ibpd;
	u32 pdid;
	struct iwch_dev *rhp;
	};

	static inline struct iwch_pd to_iwch_pd(struct ib_pd ibpd)
	{
	return container_of(ibpd, struct iwch_pd, ibpd);
	}

	struct tpt_attributes {
	u32 stag;
	u32 state:1;
	u32 type:2;
	u32 rsvd:1;
	enum tpt_mem_perm perms;
	u32 remote_invaliate_disable:1;
	u32 zbva:1;
	u32 mw_bind_enable:1;
	u32 page_size:5;

	u32 pdid;
	u32 qpid;
	u32 pbl_addr;
	u32 len;
	u64 va_fbo;
	u32 pbl_size;
	};

	struct iwch_mr {
	struct ib_mr ibmr;
	struct ib_umem *umem;
	struct iwch_dev *rhp;
	u64 kva;
	struct tpt_attributes attr;
	u64 *pages;
	u32 npages;
	};

	typedef struct iwch_mw iwch_mw_handle;

	static inline struct iwch_mr to_iwch_mr(struct ib_mr ibmr)
	{
	return container_of(ibmr, struct iwch_mr, ibmr);
	}

	struct iwch_mw {
	struct ib_mw ibmw;
	struct iwch_dev *rhp;
	u64 kva;
	struct tpt_attributes attr;
	};

	static inline struct iwch_mw to_iwch_mw(struct ib_mw ibmw)
	{
	return container_of(ibmw, struct iwch_mw, ibmw);
	}

	struct iwch_cq {
	struct ib_cq ibcq;
	struct iwch_dev *rhp;
	struct t3_cq cq;
	spinlock_t lock;
	spinlock_t comp_handler_lock;
	atomic_t refcnt;
	wait_queue_head_t wait;
	u32 __user *user_rptr_addr;
	};

	static inline struct iwch_cq to_iwch_cq(struct ib_cq ibcq)
	{
	return container_of(ibcq, struct iwch_cq, ibcq);
	}

	enum IWCH_QP_FLAGS {
	QP_QUIESCED = 0x01
	};

	struct iwch_mpa_attributes {
	u8 initiator;
	u8 recv_marker_enabled;
	u8 xmit_marker_enabled; /* iWARP: enable inbound Read Resp. */
	u8 crc_enabled;
	u8 version; /* 0 or 1 */
	};

	struct iwch_qp_attributes {
	u32 scq;
	u32 rcq;
	u32 sq_num_entries;
	u32 rq_num_entries;
	u32 sq_max_sges;
	u32 sq_max_sges_rdma_write;
	u32 rq_max_sges;
	u32 state;
	u8 enable_rdma_read;
	u8 enable_rdma_write; /* enable inbound Read Resp. */
	u8 enable_bind;
	u8 enable_mmid0_fastreg; /* Enable STAG0 + Fast-register */
	/*
	* Next QP state. If specify the current state, only the
	* QP attributes will be modified.
	*/
	u32 max_ord;
	u32 max_ird;
	u32 pd; /* IN */
	u32 next_state;
	char terminate_buffer[52];
	u32 terminate_msg_len;
	u8 is_terminate_local;
	struct iwch_mpa_attributes mpa_attr; /* IN-OUT */
	struct iwch_ep *llp_stream_handle;
	char stream_msg_buf; / Last stream msg. before Idle -> RTS */
	u32 stream_msg_buf_len; /* Only on Idle -> RTS */
	};

	struct iwch_qp {
	struct ib_qp ibqp;
	struct iwch_dev *rhp;
	struct iwch_ep *ep;
	struct iwch_qp_attributes attr;
	struct t3_wq wq;
	spinlock_t lock;
	atomic_t refcnt;
	wait_queue_head_t wait;
	enum IWCH_QP_FLAGS flags;
	struct timer_list timer;
	};

	static inline int qp_quiesced(struct iwch_qp *qhp)
	{
	return qhp->flags & QP_QUIESCED;
	}

	static inline struct iwch_qp to_iwch_qp(struct ib_qp ibqp)
	{
	return container_of(ibqp, struct iwch_qp, ibqp);
	}

	void iwch_qp_add_ref(struct ib_qp *qp);
	void iwch_qp_rem_ref(struct ib_qp *qp);

	struct iwch_ucontext {
	struct ib_ucontext ibucontext;
	struct cxio_ucontext uctx;
	u32 key;
	spinlock_t mmap_lock;
	struct list_head mmaps;
	};

	static inline struct iwch_ucontext to_iwch_ucontext(struct ib_ucontext c)
	{
	return container_of(c, struct iwch_ucontext, ibucontext);
	}

	struct iwch_mm_entry {
	struct list_head entry;
	u64 addr;
	u32 key;
	unsigned len;
	};

	static inline struct iwch_mm_entry remove_mmap(struct iwch_ucontext ucontext,
	u32 key, unsigned len)
	{
	struct list_head pos, nxt;
	struct iwch_mm_entry *mm;

	spin_lock(&ucontext->mmap_lock);
	list_for_each_safe(pos, nxt, &ucontext->mmaps) {

	mm = list_entry(pos, struct iwch_mm_entry, entry);
	if (mm->key == key && mm->len == len) {
	list_del_init(&mm->entry);
	spin_unlock(&ucontext->mmap_lock);
	PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__,
	key, (unsigned long long) mm->addr, mm->len);
	return mm;
	}
	}
	spin_unlock(&ucontext->mmap_lock);
	return NULL;
	}

	static inline void insert_mmap(struct iwch_ucontext *ucontext,
	struct iwch_mm_entry *mm)
	{
	spin_lock(&ucontext->mmap_lock);
	PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__,
	mm->key, (unsigned long long) mm->addr, mm->len);
	list_add_tail(&mm->entry, &ucontext->mmaps);
	spin_unlock(&ucontext->mmap_lock);
	}

	enum iwch_qp_attr_mask {
	IWCH_QP_ATTR_NEXT_STATE = 1 << 0,
	IWCH_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
	IWCH_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
	IWCH_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
	IWCH_QP_ATTR_MAX_ORD = 1 << 11,
	IWCH_QP_ATTR_MAX_IRD = 1 << 12,
	IWCH_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
	IWCH_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
	IWCH_QP_ATTR_MPA_ATTR = 1 << 24,
	IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
	IWCH_QP_ATTR_VALID_MODIFY = (IWCH_QP_ATTR_ENABLE_RDMA_READ \|
	IWCH_QP_ATTR_ENABLE_RDMA_WRITE \|
	IWCH_QP_ATTR_MAX_ORD \|
	IWCH_QP_ATTR_MAX_IRD \|
	IWCH_QP_ATTR_LLP_STREAM_HANDLE \|
	IWCH_QP_ATTR_STREAM_MSG_BUFFER \|
	IWCH_QP_ATTR_MPA_ATTR \|
	IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE)
	};

	int iwch_modify_qp(struct iwch_dev *rhp,
	struct iwch_qp *qhp,
	enum iwch_qp_attr_mask mask,
	struct iwch_qp_attributes *attrs,
	int internal);

	enum iwch_qp_state {
	IWCH_QP_STATE_IDLE,
	IWCH_QP_STATE_RTS,
	IWCH_QP_STATE_ERROR,
	IWCH_QP_STATE_TERMINATE,
	IWCH_QP_STATE_CLOSING,
	IWCH_QP_STATE_TOT
	};

	static inline int iwch_convert_state(enum ib_qp_state ib_state)
	{
	switch (ib_state) {
	case IB_QPS_RESET:
	case IB_QPS_INIT:
	return IWCH_QP_STATE_IDLE;
	case IB_QPS_RTS:
	return IWCH_QP_STATE_RTS;
	case IB_QPS_SQD:
	return IWCH_QP_STATE_CLOSING;
	case IB_QPS_SQE:
	return IWCH_QP_STATE_TERMINATE;
	case IB_QPS_ERR:
	return IWCH_QP_STATE_ERROR;
	default:
	return -1;
	}
	}

	static inline u32 iwch_ib_to_tpt_access(int acc)
	{
	return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) \|
	(acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0) \|
	(acc & IB_ACCESS_LOCAL_WRITE ? TPT_LOCAL_WRITE : 0) \|
	(acc & IB_ACCESS_MW_BIND ? TPT_MW_BIND : 0) \|
	TPT_LOCAL_READ;
	}

	static inline u32 iwch_ib_to_tpt_bind_access(int acc)
	{
	return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) \|
	(acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0);
	}

	enum iwch_mmid_state {
	IWCH_STAG_STATE_VALID,
	IWCH_STAG_STATE_INVALID
	};

	enum iwch_qp_query_flags {
	IWCH_QP_QUERY_CONTEXT_NONE = 0x0, /* No ctx; Only attrs */
	IWCH_QP_QUERY_CONTEXT_GET = 0x1, /* Get ctx + attrs */
	IWCH_QP_QUERY_CONTEXT_SUSPEND = 0x2, /* Not Supported */

	/*
	* Quiesce QP context; Consumer
	* will NOT replay outstanding WR
	*/
	IWCH_QP_QUERY_CONTEXT_QUIESCE = 0x4,
	IWCH_QP_QUERY_CONTEXT_REMOVE = 0x8,
	IWCH_QP_QUERY_TEST_USERWRITE = 0x32 /* Test special */
	};

	u16 iwch_rqes_posted(struct iwch_qp *qhp);
	int iwch_post_send(struct ib_qp ibqp, struct ib_send_wr wr,
	struct ib_send_wr **bad_wr);
	int iwch_post_receive(struct ib_qp ibqp, struct ib_recv_wr wr,
	struct ib_recv_wr **bad_wr);
	int iwch_bind_mw(struct ib_qp *qp,
	struct ib_mw *mw,
	struct ib_mw_bind *mw_bind);
	int iwch_poll_cq(struct ib_cq ibcq, int num_entries, struct ib_wc wc);
	int iwch_post_terminate(struct iwch_qp qhp, struct respQ_msg_t rsp_msg);
	int iwch_post_zb_read(struct iwch_ep *ep);
	int iwch_register_device(struct iwch_dev *dev);
	void iwch_unregister_device(struct iwch_dev *dev);
	void stop_read_rep_timer(struct iwch_qp *qhp);
	int iwch_register_mem(struct iwch_dev rhp, struct iwch_pd php,
	struct iwch_mr *mhp, int shift);
	int iwch_reregister_mem(struct iwch_dev rhp, struct iwch_pd php,
	struct iwch_mr *mhp,
	int shift,
	int npages);
	int iwch_alloc_pbl(struct iwch_mr *mhp, int npages);
	void iwch_free_pbl(struct iwch_mr *mhp);
	int iwch_write_pbl(struct iwch_mr mhp, __be64 pages, int npages, int offset);
	int build_phys_page_list(struct ib_phys_buf *buffer_list,
	int num_phys_buf,
	u64 *iova_start,
	u64 *total_size,
	int *npages,
	int *shift,
	__be64 **page_list);


	#define IWCH_NODE_DESC "cxgb3 Chelsio Communications"

	#endif