[linux-block.git] / drivers / infiniband / hw / mthca / mthca_dev.h

/*
 * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
 * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2004 Voltaire, 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 MTHCA_DEV_H
#define MTHCA_DEV_H

#include <linux/spinlock.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/timer.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/semaphore.h>

#include "mthca_provider.h"
#include "mthca_doorbell.h"

#define DRV_NAME	"ib_mthca"
#define PFX		DRV_NAME ": "
#define DRV_VERSION	"1.0"
#define DRV_RELDATE	"April 4, 2008"

enum {
	MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
	MTHCA_FLAG_SRQ        = 1 << 2,
	MTHCA_FLAG_MSI_X      = 1 << 3,
	MTHCA_FLAG_NO_LAM     = 1 << 4,
	MTHCA_FLAG_FMR        = 1 << 5,
	MTHCA_FLAG_MEMFREE    = 1 << 6,
	MTHCA_FLAG_PCIE       = 1 << 7,
	MTHCA_FLAG_SINAI_OPT  = 1 << 8
};

enum {
	MTHCA_MAX_PORTS = 2
};

enum {
	MTHCA_BOARD_ID_LEN = 64
};

enum {
	MTHCA_EQ_CONTEXT_SIZE =  0x40,
	MTHCA_CQ_CONTEXT_SIZE =  0x40,
	MTHCA_QP_CONTEXT_SIZE = 0x200,
	MTHCA_RDB_ENTRY_SIZE  =  0x20,
	MTHCA_AV_SIZE         =  0x20,
	MTHCA_MGM_ENTRY_SIZE  = 0x100,

	/* Arbel FW gives us these, but we need them for Tavor */
	MTHCA_MPT_ENTRY_SIZE  =  0x40,
	MTHCA_MTT_SEG_SIZE    =  0x40,

	MTHCA_QP_PER_MGM      = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
};

enum {
	MTHCA_EQ_CMD,
	MTHCA_EQ_ASYNC,
	MTHCA_EQ_COMP,
	MTHCA_NUM_EQ
};

enum {
	MTHCA_OPCODE_NOP            = 0x00,
	MTHCA_OPCODE_RDMA_WRITE     = 0x08,
	MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
	MTHCA_OPCODE_SEND           = 0x0a,
	MTHCA_OPCODE_SEND_IMM       = 0x0b,
	MTHCA_OPCODE_RDMA_READ      = 0x10,
	MTHCA_OPCODE_ATOMIC_CS      = 0x11,
	MTHCA_OPCODE_ATOMIC_FA      = 0x12,
	MTHCA_OPCODE_BIND_MW        = 0x18,
	MTHCA_OPCODE_INVALID        = 0xff
};

enum {
	MTHCA_CMD_USE_EVENTS         = 1 << 0,
	MTHCA_CMD_POST_DOORBELLS     = 1 << 1
};

enum {
	MTHCA_CMD_NUM_DBELL_DWORDS = 8
};

struct mthca_cmd {
	struct pci_pool          *pool;
	struct mutex              hcr_mutex;
	struct semaphore 	  poll_sem;
	struct semaphore 	  event_sem;
	int              	  max_cmds;
	spinlock_t                context_lock;
	int                       free_head;
	struct mthca_cmd_context *context;
	u16                       token_mask;
	u32                       flags;
	void __iomem             *dbell_map;
	u16                       dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
};

struct mthca_limits {
	int      num_ports;
	int      vl_cap;
	int      mtu_cap;
	int      gid_table_len;
	int      pkey_table_len;
	int      local_ca_ack_delay;
	int      num_uars;
	int      max_sg;
	int      num_qps;
	int      max_wqes;
	int	 max_desc_sz;
	int	 max_qp_init_rdma;
	int      reserved_qps;
	int      num_srqs;
	int      max_srq_wqes;
	int      max_srq_sge;
	int      reserved_srqs;
	int      num_eecs;
	int      reserved_eecs;
	int      num_cqs;
	int      max_cqes;
	int      reserved_cqs;
	int      num_eqs;
	int      reserved_eqs;
	int      num_mpts;
	int      num_mtt_segs;
	int	 mtt_seg_size;
	int      fmr_reserved_mtts;
	int      reserved_mtts;
	int      reserved_mrws;
	int      reserved_uars;
	int      num_mgms;
	int      num_amgms;
	int      reserved_mcgs;
	int      num_pds;
	int      reserved_pds;
	u32      page_size_cap;
	u32      flags;
	u16      stat_rate_support;
	u8       port_width_cap;
};

struct mthca_alloc {
	u32            last;
	u32            top;
	u32            max;
	u32            mask;
	spinlock_t     lock;
	unsigned long *table;
};

struct mthca_array {
	struct {
		void    **page;
		int       used;
	} *page_list;
};

struct mthca_uar_table {
	struct mthca_alloc alloc;
	u64                uarc_base;
	int                uarc_size;
};

struct mthca_pd_table {
	struct mthca_alloc alloc;
};

struct mthca_buddy {
	unsigned long **bits;
	int	       *num_free;
	int             max_order;
	spinlock_t      lock;
};

struct mthca_mr_table {
	struct mthca_alloc      mpt_alloc;
	struct mthca_buddy      mtt_buddy;
	struct mthca_buddy     *fmr_mtt_buddy;
	u64                     mtt_base;
	u64                     mpt_base;
	struct mthca_icm_table *mtt_table;
	struct mthca_icm_table *mpt_table;
	struct {
		void __iomem   *mpt_base;
		void __iomem   *mtt_base;
		struct mthca_buddy mtt_buddy;
	} tavor_fmr;
};

struct mthca_eq_table {
	struct mthca_alloc alloc;
	void __iomem      *clr_int;
	u32                clr_mask;
	u32                arm_mask;
	struct mthca_eq    eq[MTHCA_NUM_EQ];
	u64                icm_virt;
	struct page       *icm_page;
	dma_addr_t         icm_dma;
	int                have_irq;
	u8                 inta_pin;
};

struct mthca_cq_table {
	struct mthca_alloc 	alloc;
	spinlock_t         	lock;
	struct mthca_array      cq;
	struct mthca_icm_table *table;
};

struct mthca_srq_table {
	struct mthca_alloc 	alloc;
	spinlock_t         	lock;
	struct mthca_array      srq;
	struct mthca_icm_table *table;
};

struct mthca_qp_table {
	struct mthca_alloc     	alloc;
	u32                    	rdb_base;
	int                    	rdb_shift;
	int                    	sqp_start;
	spinlock_t             	lock;
	struct mthca_array     	qp;
	struct mthca_icm_table *qp_table;
	struct mthca_icm_table *eqp_table;
	struct mthca_icm_table *rdb_table;
};

struct mthca_av_table {
	struct pci_pool   *pool;
	int                num_ddr_avs;
	u64                ddr_av_base;
	void __iomem      *av_map;
	struct mthca_alloc alloc;
};

struct mthca_mcg_table {
	struct mutex		mutex;
	struct mthca_alloc 	alloc;
	struct mthca_icm_table *table;
};

struct mthca_catas_err {
	u64			addr;
	u32 __iomem	       *map;
	u32			size;
	struct timer_list	timer;
	struct list_head	list;
};

extern struct mutex mthca_device_mutex;

struct mthca_dev {
	struct ib_device  ib_dev;
	struct pci_dev   *pdev;

	int          	 hca_type;
	unsigned long	 mthca_flags;
	unsigned long    device_cap_flags;

	u32              rev_id;
	char             board_id[MTHCA_BOARD_ID_LEN];

	/* firmware info */
	u64              fw_ver;
	union {
		struct {
			u64 fw_start;
			u64 fw_end;
		}        tavor;
		struct {
			u64 clr_int_base;
			u64 eq_arm_base;
			u64 eq_set_ci_base;
			struct mthca_icm *fw_icm;
			struct mthca_icm *aux_icm;
			u16 fw_pages;
		}        arbel;
	}                fw;

	u64              ddr_start;
	u64              ddr_end;

	MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
	struct mutex cap_mask_mutex;

	void __iomem    *hcr;
	void __iomem    *kar;
	void __iomem    *clr_base;
	union {
		struct {
			void __iomem *ecr_base;
		} tavor;
		struct {
			void __iomem *eq_arm;
			void __iomem *eq_set_ci_base;
		} arbel;
	} eq_regs;

	struct mthca_cmd    cmd;
	struct mthca_limits limits;

	struct mthca_uar_table uar_table;
	struct mthca_pd_table  pd_table;
	struct mthca_mr_table  mr_table;
	struct mthca_eq_table  eq_table;
	struct mthca_cq_table  cq_table;
	struct mthca_srq_table srq_table;
	struct mthca_qp_table  qp_table;
	struct mthca_av_table  av_table;
	struct mthca_mcg_table mcg_table;

	struct mthca_catas_err catas_err;

	struct mthca_uar       driver_uar;
	struct mthca_db_table *db_tab;
	struct mthca_pd        driver_pd;
	struct mthca_mr        driver_mr;

	struct ib_mad_agent  *send_agent[MTHCA_MAX_PORTS][2];
	struct ib_ah         *sm_ah[MTHCA_MAX_PORTS];
	spinlock_t            sm_lock;
	u8                    rate[MTHCA_MAX_PORTS];
};

#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
extern int mthca_debug_level;

#define mthca_dbg(mdev, format, arg...)					\
	do {								\
		if (mthca_debug_level)					\
			dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
	} while (0)

#else /* CONFIG_INFINIBAND_MTHCA_DEBUG */

#define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)

#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */

#define mthca_err(mdev, format, arg...) \
	dev_err(&mdev->pdev->dev, format, ## arg)
#define mthca_info(mdev, format, arg...) \
	dev_info(&mdev->pdev->dev, format, ## arg)
#define mthca_warn(mdev, format, arg...) \
	dev_warn(&mdev->pdev->dev, format, ## arg)

extern void __buggy_use_of_MTHCA_GET(void);
extern void __buggy_use_of_MTHCA_PUT(void);

#define MTHCA_GET(dest, source, offset)                               \
	do {                                                          \
		void *__p = (char *) (source) + (offset);             \
		switch (sizeof (dest)) {                              \
		case 1: (dest) = *(u8 *) __p;       break;	      \
		case 2: (dest) = be16_to_cpup(__p); break;	      \
		case 4: (dest) = be32_to_cpup(__p); break;	      \
		case 8: (dest) = be64_to_cpup(__p); break;	      \
		default: __buggy_use_of_MTHCA_GET();		      \
		}                                                     \
	} while (0)

#define MTHCA_PUT(dest, source, offset)                               \
	do {                                                          \
		void *__d = ((char *) (dest) + (offset));	      \
		switch (sizeof(source)) {                             \
		case 1: *(u8 *) __d = (source);                break; \
		case 2:	*(__be16 *) __d = cpu_to_be16(source); break; \
		case 4:	*(__be32 *) __d = cpu_to_be32(source); break; \
		case 8:	*(__be64 *) __d = cpu_to_be64(source); break; \
		default: __buggy_use_of_MTHCA_PUT();		      \
		}                                                     \
	} while (0)

int mthca_reset(struct mthca_dev *mdev);

u32 mthca_alloc(struct mthca_alloc *alloc);
void mthca_free(struct mthca_alloc *alloc, u32 obj);
int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
		     u32 reserved);
void mthca_alloc_cleanup(struct mthca_alloc *alloc);
void *mthca_array_get(struct mthca_array *array, int index);
int mthca_array_set(struct mthca_array *array, int index, void *value);
void mthca_array_clear(struct mthca_array *array, int index);
int mthca_array_init(struct mthca_array *array, int nent);
void mthca_array_cleanup(struct mthca_array *array, int nent);
int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
		    union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
		    int hca_write, struct mthca_mr *mr);
void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
		    int is_direct, struct mthca_mr *mr);

int mthca_init_uar_table(struct mthca_dev *dev);
int mthca_init_pd_table(struct mthca_dev *dev);
int mthca_init_mr_table(struct mthca_dev *dev);
int mthca_init_eq_table(struct mthca_dev *dev);
int mthca_init_cq_table(struct mthca_dev *dev);
int mthca_init_srq_table(struct mthca_dev *dev);
int mthca_init_qp_table(struct mthca_dev *dev);
int mthca_init_av_table(struct mthca_dev *dev);
int mthca_init_mcg_table(struct mthca_dev *dev);

void mthca_cleanup_uar_table(struct mthca_dev *dev);
void mthca_cleanup_pd_table(struct mthca_dev *dev);
void mthca_cleanup_mr_table(struct mthca_dev *dev);
void mthca_cleanup_eq_table(struct mthca_dev *dev);
void mthca_cleanup_cq_table(struct mthca_dev *dev);
void mthca_cleanup_srq_table(struct mthca_dev *dev);
void mthca_cleanup_qp_table(struct mthca_dev *dev);
void mthca_cleanup_av_table(struct mthca_dev *dev);
void mthca_cleanup_mcg_table(struct mthca_dev *dev);

int mthca_register_device(struct mthca_dev *dev);
void mthca_unregister_device(struct mthca_dev *dev);

void mthca_start_catas_poll(struct mthca_dev *dev);
void mthca_stop_catas_poll(struct mthca_dev *dev);
int __mthca_restart_one(struct pci_dev *pdev);
int mthca_catas_init(void);
void mthca_catas_cleanup(void);

int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);

int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);

int mthca_write_mtt_size(struct mthca_dev *dev);

struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
		    int start_index, u64 *buffer_list, int list_len);
int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
		   u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
			   u32 access, struct mthca_mr *mr);
int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
			u64 *buffer_list, int buffer_size_shift,
			int list_len, u64 iova, u64 total_size,
			u32 access, struct mthca_mr *mr);
void mthca_free_mr(struct mthca_dev *dev,  struct mthca_mr *mr);

int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
		    u32 access, struct mthca_fmr *fmr);
int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
			     int list_len, u64 iova);
void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
			     int list_len, u64 iova);
void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
int mthca_free_fmr(struct mthca_dev *dev,  struct mthca_fmr *fmr);

int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
void mthca_unmap_eq_icm(struct mthca_dev *dev);

int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
		  struct ib_wc *entry);
int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
int mthca_init_cq(struct mthca_dev *dev, int nent,
		  struct mthca_ucontext *ctx, u32 pdn,
		  struct mthca_cq *cq);
void mthca_free_cq(struct mthca_dev *dev,
		   struct mthca_cq *cq);
void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
		    enum ib_event_type event_type);
void mthca_cq_clean(struct mthca_dev *dev, struct mthca_cq *cq, u32 qpn,
		    struct mthca_srq *srq);
void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
int mthca_alloc_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int nent);
void mthca_free_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int cqe);

int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
		    struct ib_srq_attr *attr, struct mthca_srq *srq);
void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
		     enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
int mthca_max_srq_sge(struct mthca_dev *dev);
void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
		     enum ib_event_type event_type);
void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
int mthca_tavor_post_srq_recv(struct ib_srq *srq, struct ib_recv_wr *wr,
			      struct ib_recv_wr **bad_wr);
int mthca_arbel_post_srq_recv(struct ib_srq *srq, struct ib_recv_wr *wr,
			      struct ib_recv_wr **bad_wr);

void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
		    enum ib_event_type event_type);
int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
		   struct ib_qp_init_attr *qp_init_attr);
int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
		    struct ib_udata *udata);
int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
			  struct ib_send_wr **bad_wr);
int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
			     struct ib_recv_wr **bad_wr);
int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
			  struct ib_send_wr **bad_wr);
int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
			     struct ib_recv_wr **bad_wr);
void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
			int index, int *dbd, __be32 *new_wqe);
int mthca_alloc_qp(struct mthca_dev *dev,
		   struct mthca_pd *pd,
		   struct mthca_cq *send_cq,
		   struct mthca_cq *recv_cq,
		   enum ib_qp_type type,
		   enum ib_sig_type send_policy,
		   struct ib_qp_cap *cap,
		   struct mthca_qp *qp);
int mthca_alloc_sqp(struct mthca_dev *dev,
		    struct mthca_pd *pd,
		    struct mthca_cq *send_cq,
		    struct mthca_cq *recv_cq,
		    enum ib_sig_type send_policy,
		    struct ib_qp_cap *cap,
		    int qpn,
		    int port,
		    struct mthca_sqp *sqp);
void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
int mthca_create_ah(struct mthca_dev *dev,
		    struct mthca_pd *pd,
		    struct ib_ah_attr *ah_attr,
		    struct mthca_ah *ah);
int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
		  struct ib_ud_header *header);
int mthca_ah_query(struct ib_ah *ibah, struct ib_ah_attr *attr);
int mthca_ah_grh_present(struct mthca_ah *ah);
u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);

int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);

int mthca_process_mad(struct ib_device *ibdev,
		      int mad_flags,
		      u8 port_num,
		      struct ib_wc *in_wc,
		      struct ib_grh *in_grh,
		      struct ib_mad *in_mad,
		      struct ib_mad *out_mad);
int mthca_create_agents(struct mthca_dev *dev);
void mthca_free_agents(struct mthca_dev *dev);

static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
{
	return container_of(ibdev, struct mthca_dev, ib_dev);
}

static inline int mthca_is_memfree(struct mthca_dev *dev)
{
	return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
}

#endif /* MTHCA_DEV_H */
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
cd4e8fb4	3	* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4885bf64	4	* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
2a1d9b7f RD	5	* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
2a1d9b7f RD	6	* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
1da177e4 LT	7	*
	8	* This software is available to you under a choice of one of two
	9	* licenses. You may choose to be licensed under the terms of the GNU
	10	* General Public License (GPL) Version 2, available from the file
	11	* COPYING in the main directory of this source tree, or the
	12	* OpenIB.org BSD license below:
	13	*
	14	* Redistribution and use in source and binary forms, with or
	15	* without modification, are permitted provided that the following
	16	* conditions are met:
	17	*
	18	* - Redistributions of source code must retain the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer.
	21	*
	22	* - Redistributions in binary form must reproduce the above
	23	* copyright notice, this list of conditions and the following
	24	* disclaimer in the documentation and/or other materials
	25	* provided with the distribution.
	26	*
	27	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	28	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	29	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	30	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	31	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	32	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	33	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	34	* SOFTWARE.
1da177e4 LT	35	*/
	36
	37	#ifndef MTHCA_DEV_H
	38	#define MTHCA_DEV_H
	39
	40	#include <linux/spinlock.h>
	41	#include <linux/kernel.h>
	42	#include <linux/pci.h>
	43	#include <linux/dma-mapping.h>
de25968c	44	#include <linux/timer.h>
fd9cfdd1	45	#include <linux/mutex.h>
b3b30f5e	46	#include <linux/list.h>
6188e10d	47	#include <linux/semaphore.h>
1da177e4 LT	48
	49	#include "mthca_provider.h"
	50	#include "mthca_doorbell.h"
	51
	52	#define DRV_NAME "ib_mthca"
	53	#define PFX DRV_NAME ": "
940801b2 JM	54	#define DRV_VERSION "1.0"
940801b2 JM	55	#define DRV_RELDATE "April 4, 2008"
1da177e4	56
1da177e4 LT	57	enum {
	58	MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
	59	MTHCA_FLAG_SRQ = 1 << 2,
e57895d3 AB	60	MTHCA_FLAG_MSI_X = 1 << 3,
	61	MTHCA_FLAG_NO_LAM = 1 << 4,
	62	MTHCA_FLAG_FMR = 1 << 5,
	63	MTHCA_FLAG_MEMFREE = 1 << 6,
	64	MTHCA_FLAG_PCIE = 1 << 7,
	65	MTHCA_FLAG_SINAI_OPT = 1 << 8
1da177e4 LT	66	};
	67
	68	enum {
	69	MTHCA_MAX_PORTS = 2
	70	};
	71
2e8b981c MT	72	enum {
	73	MTHCA_BOARD_ID_LEN = 64
	74	};
	75
1da177e4 LT	76	enum {
	77	MTHCA_EQ_CONTEXT_SIZE = 0x40,
	78	MTHCA_CQ_CONTEXT_SIZE = 0x40,
	79	MTHCA_QP_CONTEXT_SIZE = 0x200,
	80	MTHCA_RDB_ENTRY_SIZE = 0x20,
	81	MTHCA_AV_SIZE = 0x20,
1a1eb6a6	82	MTHCA_MGM_ENTRY_SIZE = 0x100,
1da177e4 LT	83
	84	/* Arbel FW gives us these, but we need them for Tavor */
	85	MTHCA_MPT_ENTRY_SIZE = 0x40,
	86	MTHCA_MTT_SEG_SIZE = 0x40,
efaae8f7 JM	87
efaae8f7 JM	88	MTHCA_QP_PER_MGM = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
1da177e4 LT	89	};
	90
	91	enum {
	92	MTHCA_EQ_CMD,
	93	MTHCA_EQ_ASYNC,
	94	MTHCA_EQ_COMP,
	95	MTHCA_NUM_EQ
	96	};
	97
2a4443a6 MT	98	enum {
	99	MTHCA_OPCODE_NOP = 0x00,
	100	MTHCA_OPCODE_RDMA_WRITE = 0x08,
	101	MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
	102	MTHCA_OPCODE_SEND = 0x0a,
	103	MTHCA_OPCODE_SEND_IMM = 0x0b,
	104	MTHCA_OPCODE_RDMA_READ = 0x10,
	105	MTHCA_OPCODE_ATOMIC_CS = 0x11,
	106	MTHCA_OPCODE_ATOMIC_FA = 0x12,
	107	MTHCA_OPCODE_BIND_MW = 0x18,
	108	MTHCA_OPCODE_INVALID = 0xff
	109	};
	110
14abdffc EC	111	enum {
	112	MTHCA_CMD_USE_EVENTS = 1 << 0,
	113	MTHCA_CMD_POST_DOORBELLS = 1 << 1
	114	};
	115
	116	enum {
	117	MTHCA_CMD_NUM_DBELL_DWORDS = 8
	118	};
	119
1da177e4	120	struct mthca_cmd {
ed878458	121	struct pci_pool *pool;
fd9cfdd1	122	struct mutex hcr_mutex;
1da177e4 LT	123	struct semaphore poll_sem;
	124	struct semaphore event_sem;
	125	int max_cmds;
	126	spinlock_t context_lock;
	127	int free_head;
	128	struct mthca_cmd_context *context;
	129	u16 token_mask;
14abdffc EC	130	u32 flags;
	131	void __iomem *dbell_map;
	132	u16 dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
1da177e4 LT	133	};
	134
	135	struct mthca_limits {
	136	int num_ports;
	137	int vl_cap;
	138	int mtu_cap;
	139	int gid_table_len;
	140	int pkey_table_len;
	141	int local_ca_ack_delay;
	142	int num_uars;
	143	int max_sg;
	144	int num_qps;
efaae8f7	145	int max_wqes;
77369ed3	146	int max_desc_sz;
efaae8f7	147	int max_qp_init_rdma;
1da177e4 LT	148	int reserved_qps;
1da177e4 LT	149	int num_srqs;
efaae8f7	150	int max_srq_wqes;
59fef3b1	151	int max_srq_sge;
1da177e4 LT	152	int reserved_srqs;
	153	int num_eecs;
	154	int reserved_eecs;
	155	int num_cqs;
efaae8f7	156	int max_cqes;
1da177e4 LT	157	int reserved_cqs;
	158	int num_eqs;
	159	int reserved_eqs;
	160	int num_mpts;
	161	int num_mtt_segs;
c1f67a88	162	int mtt_seg_size;
e0f5fdca	163	int fmr_reserved_mtts;
1da177e4 LT	164	int reserved_mtts;
	165	int reserved_mrws;
	166	int reserved_uars;
	167	int num_mgms;
	168	int num_amgms;
	169	int reserved_mcgs;
	170	int num_pds;
	171	int reserved_pds;
0f69ce1e	172	u32 page_size_cap;
33033b79	173	u32 flags;
bf6a9e31	174	u16 stat_rate_support;
da6561c2	175	u8 port_width_cap;
1da177e4 LT	176	};
	177
	178	struct mthca_alloc {
	179	u32 last;
	180	u32 top;
	181	u32 max;
	182	u32 mask;
	183	spinlock_t lock;
	184	unsigned long *table;
	185	};
	186
	187	struct mthca_array {
	188	struct {
	189	void **page;
	190	int used;
	191	} *page_list;
	192	};
	193
	194	struct mthca_uar_table {
	195	struct mthca_alloc alloc;
	196	u64 uarc_base;
	197	int uarc_size;
	198	};
	199
	200	struct mthca_pd_table {
	201	struct mthca_alloc alloc;
	202	};
	203
9095e208 MT	204	struct mthca_buddy {
9095e208 MT	205	unsigned long **bits;
e8bb4beb	206	int *num_free;
9095e208 MT	207	int max_order;
	208	spinlock_t lock;
	209	};
	210
1da177e4 LT	211	struct mthca_mr_table {
1da177e4 LT	212	struct mthca_alloc mpt_alloc;
e0f5fdca MT	213	struct mthca_buddy mtt_buddy;
e0f5fdca MT	214	struct mthca_buddy *fmr_mtt_buddy;
1da177e4	215	u64 mtt_base;
e0f5fdca	216	u64 mpt_base;
1da177e4 LT	217	struct mthca_icm_table *mtt_table;
1da177e4 LT	218	struct mthca_icm_table *mpt_table;
e0f5fdca MT	219	struct {
	220	void __iomem *mpt_base;
	221	void __iomem *mtt_base;
	222	struct mthca_buddy mtt_buddy;
	223	} tavor_fmr;
1da177e4 LT	224	};
	225
	226	struct mthca_eq_table {
	227	struct mthca_alloc alloc;
	228	void __iomem *clr_int;
	229	u32 clr_mask;
	230	u32 arm_mask;
	231	struct mthca_eq eq[MTHCA_NUM_EQ];
	232	u64 icm_virt;
	233	struct page *icm_page;
	234	dma_addr_t icm_dma;
	235	int have_irq;
	236	u8 inta_pin;
	237	};
	238
	239	struct mthca_cq_table {
	240	struct mthca_alloc alloc;
	241	spinlock_t lock;
	242	struct mthca_array cq;
	243	struct mthca_icm_table *table;
	244	};
	245
ec34a922 RD	246	struct mthca_srq_table {
	247	struct mthca_alloc alloc;
	248	spinlock_t lock;
	249	struct mthca_array srq;
	250	struct mthca_icm_table *table;
	251	};
	252
1da177e4 LT	253	struct mthca_qp_table {
	254	struct mthca_alloc alloc;
	255	u32 rdb_base;
	256	int rdb_shift;
	257	int sqp_start;
	258	spinlock_t lock;
	259	struct mthca_array qp;
	260	struct mthca_icm_table *qp_table;
	261	struct mthca_icm_table *eqp_table;
08aeb14e	262	struct mthca_icm_table *rdb_table;
1da177e4 LT	263	};
	264
	265	struct mthca_av_table {
	266	struct pci_pool *pool;
	267	int num_ddr_avs;
	268	u64 ddr_av_base;
	269	void __iomem *av_map;
	270	struct mthca_alloc alloc;
	271	};
	272
	273	struct mthca_mcg_table {
fd9cfdd1	274	struct mutex mutex;
1da177e4 LT	275	struct mthca_alloc alloc;
	276	struct mthca_icm_table *table;
	277	};
	278
3d155f8c RD	279	struct mthca_catas_err {
	280	u64 addr;
	281	u32 __iomem *map;
3d155f8c RD	282	u32 size;
3d155f8c RD	283	struct timer_list timer;
b3b30f5e	284	struct list_head list;
3d155f8c RD	285	};
3d155f8c RD	286
b3b30f5e JM	287	extern struct mutex mthca_device_mutex;
b3b30f5e JM	288
1da177e4 LT	289	struct mthca_dev {
	290	struct ib_device ib_dev;
	291	struct pci_dev *pdev;
	292
	293	int hca_type;
	294	unsigned long mthca_flags;
	295	unsigned long device_cap_flags;
	296
	297	u32 rev_id;
2e8b981c	298	char board_id[MTHCA_BOARD_ID_LEN];
1da177e4 LT	299
	300	/* firmware info */
	301	u64 fw_ver;
	302	union {
	303	struct {
	304	u64 fw_start;
	305	u64 fw_end;
	306	} tavor;
	307	struct {
	308	u64 clr_int_base;
	309	u64 eq_arm_base;
	310	u64 eq_set_ci_base;
	311	struct mthca_icm *fw_icm;
	312	struct mthca_icm *aux_icm;
	313	u16 fw_pages;
	314	} arbel;
	315	} fw;
	316
	317	u64 ddr_start;
	318	u64 ddr_end;
	319
	320	MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
fd9cfdd1	321	struct mutex cap_mask_mutex;
1da177e4 LT	322
	323	void __iomem *hcr;
	324	void __iomem *kar;
	325	void __iomem *clr_base;
	326	union {
	327	struct {
	328	void __iomem *ecr_base;
	329	} tavor;
	330	struct {
	331	void __iomem *eq_arm;
	332	void __iomem *eq_set_ci_base;
	333	} arbel;
	334	} eq_regs;
	335
	336	struct mthca_cmd cmd;
	337	struct mthca_limits limits;
	338
	339	struct mthca_uar_table uar_table;
	340	struct mthca_pd_table pd_table;
	341	struct mthca_mr_table mr_table;
	342	struct mthca_eq_table eq_table;
	343	struct mthca_cq_table cq_table;
ec34a922	344	struct mthca_srq_table srq_table;
1da177e4 LT	345	struct mthca_qp_table qp_table;
	346	struct mthca_av_table av_table;
	347	struct mthca_mcg_table mcg_table;
	348
3d155f8c RD	349	struct mthca_catas_err catas_err;
3d155f8c RD	350
1da177e4 LT	351	struct mthca_uar driver_uar;
	352	struct mthca_db_table *db_tab;
	353	struct mthca_pd driver_pd;
	354	struct mthca_mr driver_mr;
	355
	356	struct ib_mad_agent *send_agent[MTHCA_MAX_PORTS][2];
	357	struct ib_ah *sm_ah[MTHCA_MAX_PORTS];
	358	spinlock_t sm_lock;
bf6a9e31	359	u8 rate[MTHCA_MAX_PORTS];
1da177e4 LT	360	};
1da177e4 LT	361
227c939b RD	362	#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
	363	extern int mthca_debug_level;
	364
	365	#define mthca_dbg(mdev, format, arg...) \
	366	do { \
	367	if (mthca_debug_level) \
	368	dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
	369	} while (0)
	370
	371	#else /* CONFIG_INFINIBAND_MTHCA_DEBUG */
	372
	373	#define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
	374
	375	#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
	376
1da177e4 LT	377	#define mthca_err(mdev, format, arg...) \
	378	dev_err(&mdev->pdev->dev, format, ## arg)
	379	#define mthca_info(mdev, format, arg...) \
	380	dev_info(&mdev->pdev->dev, format, ## arg)
	381	#define mthca_warn(mdev, format, arg...) \
	382	dev_warn(&mdev->pdev->dev, format, ## arg)
	383
	384	extern void __buggy_use_of_MTHCA_GET(void);
	385	extern void __buggy_use_of_MTHCA_PUT(void);
	386
	387	#define MTHCA_GET(dest, source, offset) \
	388	do { \
	389	void __p = (char ) (source) + (offset); \
	390	switch (sizeof (dest)) { \
b3999393 RD	391	case 1: (dest) = (u8 ) __p; break; \
	392	case 2: (dest) = be16_to_cpup(__p); break; \
	393	case 4: (dest) = be32_to_cpup(__p); break; \
	394	case 8: (dest) = be64_to_cpup(__p); break; \
	395	default: __buggy_use_of_MTHCA_GET(); \
1da177e4 LT	396	} \
	397	} while (0)
	398
	399	#define MTHCA_PUT(dest, source, offset) \
	400	do { \
97f52eb4	401	void __d = ((char ) (dest) + (offset)); \
1da177e4	402	switch (sizeof(source)) { \
97f52eb4 SH	403	case 1: (u8 ) __d = (source); break; \
	404	case 2: (__be16 ) __d = cpu_to_be16(source); break; \
	405	case 4: (__be32 ) __d = cpu_to_be32(source); break; \
	406	case 8: (__be64 ) __d = cpu_to_be64(source); break; \
	407	default: __buggy_use_of_MTHCA_PUT(); \
1da177e4 LT	408	} \
	409	} while (0)
	410
	411	int mthca_reset(struct mthca_dev *mdev);
	412
	413	u32 mthca_alloc(struct mthca_alloc *alloc);
	414	void mthca_free(struct mthca_alloc *alloc, u32 obj);
	415	int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
	416	u32 reserved);
	417	void mthca_alloc_cleanup(struct mthca_alloc *alloc);
	418	void mthca_array_get(struct mthca_array array, int index);
	419	int mthca_array_set(struct mthca_array array, int index, void value);
	420	void mthca_array_clear(struct mthca_array *array, int index);
	421	int mthca_array_init(struct mthca_array *array, int nent);
	422	void mthca_array_cleanup(struct mthca_array *array, int nent);
87b81670 RD	423	int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
	424	union mthca_buf buf, int is_direct, struct mthca_pd *pd,
	425	int hca_write, struct mthca_mr *mr);
	426	void mthca_buf_free(struct mthca_dev dev, int size, union mthca_buf buf,
	427	int is_direct, struct mthca_mr *mr);
1da177e4 LT	428
	429	int mthca_init_uar_table(struct mthca_dev *dev);
	430	int mthca_init_pd_table(struct mthca_dev *dev);
	431	int mthca_init_mr_table(struct mthca_dev *dev);
	432	int mthca_init_eq_table(struct mthca_dev *dev);
	433	int mthca_init_cq_table(struct mthca_dev *dev);
ec34a922	434	int mthca_init_srq_table(struct mthca_dev *dev);
1da177e4 LT	435	int mthca_init_qp_table(struct mthca_dev *dev);
	436	int mthca_init_av_table(struct mthca_dev *dev);
	437	int mthca_init_mcg_table(struct mthca_dev *dev);
	438
	439	void mthca_cleanup_uar_table(struct mthca_dev *dev);
	440	void mthca_cleanup_pd_table(struct mthca_dev *dev);
	441	void mthca_cleanup_mr_table(struct mthca_dev *dev);
	442	void mthca_cleanup_eq_table(struct mthca_dev *dev);
	443	void mthca_cleanup_cq_table(struct mthca_dev *dev);
ec34a922	444	void mthca_cleanup_srq_table(struct mthca_dev *dev);
1da177e4 LT	445	void mthca_cleanup_qp_table(struct mthca_dev *dev);
	446	void mthca_cleanup_av_table(struct mthca_dev *dev);
	447	void mthca_cleanup_mcg_table(struct mthca_dev *dev);
	448
	449	int mthca_register_device(struct mthca_dev *dev);
	450	void mthca_unregister_device(struct mthca_dev *dev);
	451
3d155f8c RD	452	void mthca_start_catas_poll(struct mthca_dev *dev);
3d155f8c RD	453	void mthca_stop_catas_poll(struct mthca_dev *dev);
b3b30f5e JM	454	int __mthca_restart_one(struct pci_dev *pdev);
	455	int mthca_catas_init(void);
	456	void mthca_catas_cleanup(void);
3d155f8c	457
1da177e4 LT	458	int mthca_uar_alloc(struct mthca_dev dev, struct mthca_uar uar);
	459	void mthca_uar_free(struct mthca_dev dev, struct mthca_uar uar);
	460
99264c1e	461	int mthca_pd_alloc(struct mthca_dev dev, int privileged, struct mthca_pd pd);
1da177e4 LT	462	void mthca_pd_free(struct mthca_dev dev, struct mthca_pd pd);
1da177e4 LT	463
b2875d4c MT	464	int mthca_write_mtt_size(struct mthca_dev *dev);
b2875d4c MT	465
d56d6f95 RD	466	struct mthca_mtt mthca_alloc_mtt(struct mthca_dev dev, int size);
	467	void mthca_free_mtt(struct mthca_dev dev, struct mthca_mtt mtt);
	468	int mthca_write_mtt(struct mthca_dev dev, struct mthca_mtt mtt,
	469	int start_index, u64 *buffer_list, int list_len);
	470	int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
	471	u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
1da177e4 LT	472	int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
	473	u32 access, struct mthca_mr *mr);
	474	int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
	475	u64 *buffer_list, int buffer_size_shift,
	476	int list_len, u64 iova, u64 total_size,
	477	u32 access, struct mthca_mr *mr);
e0f5fdca MT	478	void mthca_free_mr(struct mthca_dev dev, struct mthca_mr mr);
	479
	480	int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
	481	u32 access, struct mthca_fmr *fmr);
	482	int mthca_tavor_map_phys_fmr(struct ib_fmr ibfmr, u64 page_list,
	483	int list_len, u64 iova);
	484	void mthca_tavor_fmr_unmap(struct mthca_dev dev, struct mthca_fmr fmr);
	485	int mthca_arbel_map_phys_fmr(struct ib_fmr ibfmr, u64 page_list,
	486	int list_len, u64 iova);
	487	void mthca_arbel_fmr_unmap(struct mthca_dev dev, struct mthca_fmr fmr);
	488	int mthca_free_fmr(struct mthca_dev dev, struct mthca_fmr fmr);
1da177e4 LT	489
	490	int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
	491	void mthca_unmap_eq_icm(struct mthca_dev *dev);
	492
	493	int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
	494	struct ib_wc *entry);
ed23a727 RD	495	int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
ed23a727 RD	496	int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
1da177e4	497	int mthca_init_cq(struct mthca_dev *dev, int nent,
74c2174e	498	struct mthca_ucontext *ctx, u32 pdn,
1da177e4 LT	499	struct mthca_cq *cq);
	500	void mthca_free_cq(struct mthca_dev *dev,
	501	struct mthca_cq *cq);
affcd505 MT	502	void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
	503	void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
	504	enum ib_event_type event_type);
a3285aa4	505	void mthca_cq_clean(struct mthca_dev dev, struct mthca_cq cq, u32 qpn,
ec34a922	506	struct mthca_srq *srq);
4885bf64 RD	507	void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
	508	int mthca_alloc_cq_buf(struct mthca_dev dev, struct mthca_cq_buf buf, int nent);
	509	void mthca_free_cq_buf(struct mthca_dev dev, struct mthca_cq_buf buf, int cqe);
ec34a922 RD	510
	511	int mthca_alloc_srq(struct mthca_dev dev, struct mthca_pd pd,
	512	struct ib_srq_attr attr, struct mthca_srq srq);
	513	void mthca_free_srq(struct mthca_dev dev, struct mthca_srq srq);
90f104da	514	int mthca_modify_srq(struct ib_srq ibsrq, struct ib_srq_attr attr,
9bc57e2d	515	enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
8ebe5077	516	int mthca_query_srq(struct ib_srq srq, struct ib_srq_attr srq_attr);
59fef3b1	517	int mthca_max_srq_sge(struct mthca_dev *dev);
ec34a922 RD	518	void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
	519	enum ib_event_type event_type);
	520	void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
	521	int mthca_tavor_post_srq_recv(struct ib_srq srq, struct ib_recv_wr wr,
	522	struct ib_recv_wr **bad_wr);
	523	int mthca_arbel_post_srq_recv(struct ib_srq srq, struct ib_recv_wr wr,
	524	struct ib_recv_wr **bad_wr);
1da177e4 LT	525
	526	void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
	527	enum ib_event_type event_type);
8ebe5077 EC	528	int mthca_query_qp(struct ib_qp ibqp, struct ib_qp_attr qp_attr, int qp_attr_mask,
8ebe5077 EC	529	struct ib_qp_init_attr *qp_init_attr);
9bc57e2d RC	530	int mthca_modify_qp(struct ib_qp ibqp, struct ib_qp_attr attr, int attr_mask,
9bc57e2d RC	531	struct ib_udata *udata);
1da177e4 LT	532	int mthca_tavor_post_send(struct ib_qp ibqp, struct ib_send_wr wr,
	533	struct ib_send_wr **bad_wr);
	534	int mthca_tavor_post_receive(struct ib_qp ibqp, struct ib_recv_wr wr,
	535	struct ib_recv_wr **bad_wr);
	536	int mthca_arbel_post_send(struct ib_qp ibqp, struct ib_send_wr wr,
	537	struct ib_send_wr **bad_wr);
	538	int mthca_arbel_post_receive(struct ib_qp ibqp, struct ib_recv_wr wr,
	539	struct ib_recv_wr **bad_wr);
d9b98b0f RD	540	void mthca_free_err_wqe(struct mthca_dev dev, struct mthca_qp qp, int is_send,
d9b98b0f RD	541	int index, int dbd, __be32 new_wqe);
1da177e4 LT	542	int mthca_alloc_qp(struct mthca_dev *dev,
	543	struct mthca_pd *pd,
	544	struct mthca_cq *send_cq,
	545	struct mthca_cq *recv_cq,
	546	enum ib_qp_type type,
	547	enum ib_sig_type send_policy,
80c8ec2c	548	struct ib_qp_cap *cap,
1da177e4 LT	549	struct mthca_qp *qp);
	550	int mthca_alloc_sqp(struct mthca_dev *dev,
	551	struct mthca_pd *pd,
	552	struct mthca_cq *send_cq,
	553	struct mthca_cq *recv_cq,
	554	enum ib_sig_type send_policy,
80c8ec2c	555	struct ib_qp_cap *cap,
1da177e4 LT	556	int qpn,
	557	int port,
	558	struct mthca_sqp *sqp);
	559	void mthca_free_qp(struct mthca_dev dev, struct mthca_qp qp);
	560	int mthca_create_ah(struct mthca_dev *dev,
	561	struct mthca_pd *pd,
	562	struct ib_ah_attr *ah_attr,
	563	struct mthca_ah *ah);
	564	int mthca_destroy_ah(struct mthca_dev dev, struct mthca_ah ah);
	565	int mthca_read_ah(struct mthca_dev dev, struct mthca_ah ah,
	566	struct ib_ud_header *header);
1d89b1ae	567	int mthca_ah_query(struct ib_ah ibah, struct ib_ah_attr attr);
9eacee2a	568	int mthca_ah_grh_present(struct mthca_ah *ah);
bf6a9e31 JM	569	u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
bf6a9e31 JM	570	enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);
1da177e4 LT	571
	572	int mthca_multicast_attach(struct ib_qp ibqp, union ib_gid gid, u16 lid);
	573	int mthca_multicast_detach(struct ib_qp ibqp, union ib_gid gid, u16 lid);
	574
	575	int mthca_process_mad(struct ib_device *ibdev,
	576	int mad_flags,
	577	u8 port_num,
	578	struct ib_wc *in_wc,
	579	struct ib_grh *in_grh,
	580	struct ib_mad *in_mad,
	581	struct ib_mad *out_mad);
	582	int mthca_create_agents(struct mthca_dev *dev);
	583	void mthca_free_agents(struct mthca_dev *dev);
	584
	585	static inline struct mthca_dev to_mdev(struct ib_device ibdev)
	586	{
	587	return container_of(ibdev, struct mthca_dev, ib_dev);
	588	}
	589
d10ddbf6 RD	590	static inline int mthca_is_memfree(struct mthca_dev *dev)
d10ddbf6 RD	591	{
68a3c212	592	return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
d10ddbf6 RD	593	}
d10ddbf6 RD	594
1da177e4	595	#endif /* MTHCA_DEV_H */