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/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Cisco Systems. 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.
*
* $Id$
*/
#ifndef MTHCA_H
#define MTHCA_H
#include <endian.h>
#include <byteswap.h>
#include <infiniband/driver.h>
#include <infiniband/arch.h>
#define HIDDEN __attribute__((visibility ("hidden")))
#define PFX "mthca: "
enum mthca_hca_type {
MTHCA_TAVOR,
MTHCA_ARBEL
};
enum {
MTHCA_CQ_ENTRY_SIZE = 0x20
};
enum {
MTHCA_QP_TABLE_BITS = 8,
MTHCA_QP_TABLE_SIZE = 1 << MTHCA_QP_TABLE_BITS,
MTHCA_QP_TABLE_MASK = MTHCA_QP_TABLE_SIZE - 1
};
enum {
MTHCA_DB_REC_PAGE_SIZE = 4096,
MTHCA_DB_REC_PER_PAGE = MTHCA_DB_REC_PAGE_SIZE / 8
};
enum mthca_db_type {
MTHCA_DB_TYPE_INVALID = 0x0,
MTHCA_DB_TYPE_CQ_SET_CI = 0x1,
MTHCA_DB_TYPE_CQ_ARM = 0x2,
MTHCA_DB_TYPE_SQ = 0x3,
MTHCA_DB_TYPE_RQ = 0x4,
MTHCA_DB_TYPE_SRQ = 0x5,
MTHCA_DB_TYPE_GROUP_SEP = 0x7
};
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
};
struct mthca_ah_page;
struct mthca_device {
struct ibv_device ibv_dev;
enum mthca_hca_type hca_type;
int page_size;
};
struct mthca_db_table;
struct mthca_context {
void *uar;
pthread_spinlock_t uar_lock;
struct mthca_db_table *db_tab;
struct ibv_pd *pd;
struct {
struct mthca_qp **table;
int refcnt;
} qp_table[MTHCA_QP_TABLE_SIZE];
pthread_mutex_t qp_table_mutex;
int num_qps;
int qp_table_shift;
int qp_table_mask;
/*
* ibv_ctx must be last because we size it dynamically
* depending on the number of CQ events available.
*/
struct ibv_context ibv_ctx;
};
struct mthca_pd {
struct ibv_pd ibv_pd;
struct mthca_ah_page *ah_list;
pthread_mutex_t ah_mutex;
uint32_t pdn;
};
struct mthca_cq {
struct ibv_cq ibv_cq;
void *buf;
pthread_spinlock_t lock;
struct ibv_mr *mr;
uint32_t cqn;
uint32_t cons_index;
/* Next fields are mem-free only */
int set_ci_db_index;
uint32_t *set_ci_db;
int arm_db_index;
uint32_t *arm_db;
int arm_sn;
};
struct mthca_srq {
struct ibv_srq ibv_srq;
void *buf;
void *last;
pthread_spinlock_t lock;
struct ibv_mr *mr;
uint64_t *wrid;
uint32_t srqn;
int max;
int max_gs;
int wqe_shift;
int first_free;
int last_free;
int buf_size;
/* Next fields are mem-free only */
int db_index;
uint32_t *db;
uint16_t counter;
};
struct mthca_wq {
pthread_spinlock_t lock;
int max;
unsigned next_ind;
unsigned last_comp;
unsigned head;
unsigned tail;
void *last;
int max_gs;
int wqe_shift;
/* Next fields are mem-free only */
int db_index;
uint32_t *db;
};
struct mthca_qp {
struct ibv_qp ibv_qp;
void *buf;
uint64_t *wrid;
int send_wqe_offset;
int buf_size;
struct mthca_wq sq;
struct mthca_wq rq;
struct ibv_mr *mr;
enum ibv_qp_type qpt;
int sq_sig_all;
};
struct mthca_av {
uint32_t port_pd;
uint8_t reserved1;
uint8_t g_slid;
uint16_t dlid;
uint8_t reserved2;
uint8_t gid_index;
uint8_t msg_sr;
uint8_t hop_limit;
uint32_t sl_tclass_flowlabel;
uint32_t dgid[4];
};
struct mthca_ah {
struct ibv_ah ibv_ah;
struct mthca_av *av;
struct mthca_ah_page *page;
uint32_t key;
};
#if __BYTE_ORDER == __LITTLE_ENDIAN
static inline uint64_t htonll(uint64_t x) { return bswap_64(x); }
static inline uint64_t ntohll(uint64_t x) { return bswap_64(x); }
#elif __BYTE_ORDER == __BIG_ENDIAN
static inline uint64_t htonll(uint64_t x) { return x; }
static inline uint64_t ntohll(uint64_t x) { return x; }
#endif
static inline unsigned long align(unsigned long val, unsigned long align)
{
return (val + align - 1) & ~(align - 1);
}
static inline uintptr_t db_align(uint32_t *db)
{
return (uintptr_t) db & ~((uintptr_t) MTHCA_DB_REC_PAGE_SIZE - 1);
}
#define to_mxxx(xxx, type) \
((struct mthca_##type *) \
((void *) ib##xxx - offsetof(struct mthca_##type, ibv_##xxx)))
static inline struct mthca_device *to_mdev(struct ibv_device *ibdev)
{
return to_mxxx(dev, device);
}
static inline struct mthca_context *to_mctx(struct ibv_context *ibctx)
{
return to_mxxx(ctx, context);
}
static inline struct mthca_pd *to_mpd(struct ibv_pd *ibpd)
{
return to_mxxx(pd, pd);
}
static inline struct mthca_cq *to_mcq(struct ibv_cq *ibcq)
{
return to_mxxx(cq, cq);
}
static inline struct mthca_srq *to_msrq(struct ibv_srq *ibsrq)
{
return to_mxxx(srq, srq);
}
static inline struct mthca_qp *to_mqp(struct ibv_qp *ibqp)
{
return to_mxxx(qp, qp);
}
static inline struct mthca_ah *to_mah(struct ibv_ah *ibah)
{
return to_mxxx(ah, ah);
}
static inline int mthca_is_memfree(struct ibv_context *ibctx)
{
return to_mdev(ibctx->device)->hca_type == MTHCA_ARBEL;
}
extern int mthca_alloc_db(struct mthca_db_table *db_tab, enum mthca_db_type type,
uint32_t **db);
extern void mthca_set_db_qn(uint32_t *db, enum mthca_db_type type, uint32_t qn);
extern void mthca_free_db(struct mthca_db_table *db_tab, enum mthca_db_type type, int db_index);
extern struct mthca_db_table *mthca_alloc_db_tab(int uarc_size);
extern void mthca_free_db_tab(struct mthca_db_table *db_tab);
extern int mthca_query_device(struct ibv_context *context,
struct ibv_device_attr *attr);
extern int mthca_query_port(struct ibv_context *context, uint8_t port,
struct ibv_port_attr *attr);
extern int mthca_query_gid(struct ibv_context *context, uint8_t port_num,
int index, union ibv_gid *gid);
extern int mthca_query_pkey(struct ibv_context *context, uint8_t port_num,
int index, uint16_t *pkey);
extern struct ibv_pd *mthca_alloc_pd(struct ibv_context *context);
extern int mthca_free_pd(struct ibv_pd *pd);
extern struct ibv_mr *mthca_reg_mr(struct ibv_pd *pd, void *addr,
size_t length, enum ibv_access_flags access);
extern int mthca_dereg_mr(struct ibv_mr *mr);
extern struct ibv_cq *mthca_create_cq(struct ibv_context *context, int cqe);
extern int mthca_destroy_cq(struct ibv_cq *cq);
extern int mthca_poll_cq(struct ibv_cq *cq, int ne, struct ibv_wc *wc);
extern int mthca_tavor_arm_cq(struct ibv_cq *cq, int solicited);
extern int mthca_arbel_arm_cq(struct ibv_cq *cq, int solicited);
extern void mthca_arbel_cq_event(struct ibv_cq *cq);
extern void mthca_init_cq_buf(struct mthca_cq *cq, int nent);
extern struct ibv_srq *mthca_create_srq(struct ibv_pd *pd,
struct ibv_srq_init_attr *attr);
extern int mthca_modify_srq(struct ibv_srq *srq,
struct ibv_srq_attr *attr,
enum ibv_srq_attr_mask mask);
extern int mthca_destroy_srq(struct ibv_srq *srq);
extern int mthca_alloc_srq_buf(struct ibv_pd *pd, struct ibv_srq_attr *attr,
struct mthca_srq *srq);
extern void mthca_free_srq_wqe(struct mthca_srq *srq, uint32_t wqe_addr);
extern int mthca_tavor_post_srq_recv(struct ibv_srq *ibsrq,
struct ibv_recv_wr *wr,
struct ibv_recv_wr **bad_wr);
extern int mthca_arbel_post_srq_recv(struct ibv_srq *ibsrq,
struct ibv_recv_wr *wr,
struct ibv_recv_wr **bad_wr);
extern struct ibv_qp *mthca_create_qp(struct ibv_pd *pd, struct ibv_qp_init_attr *attr);
extern int mthca_modify_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
enum ibv_qp_attr_mask attr_mask);
extern int mthca_destroy_qp(struct ibv_qp *qp);
extern int mthca_tavor_post_send(struct ibv_qp *ibqp, struct ibv_send_wr *wr,
struct ibv_send_wr **bad_wr);
extern int mthca_tavor_post_recv(struct ibv_qp *ibqp, struct ibv_recv_wr *wr,
struct ibv_recv_wr **bad_wr);
extern int mthca_arbel_post_send(struct ibv_qp *ibqp, struct ibv_send_wr *wr,
struct ibv_send_wr **bad_wr);
extern int mthca_arbel_post_recv(struct ibv_qp *ibqp, struct ibv_recv_wr *wr,
struct ibv_recv_wr **bad_wr);
extern int mthca_alloc_qp_buf(struct ibv_pd *pd, struct ibv_qp_cap *cap,
struct mthca_qp *qp);
extern void mthca_return_cap(struct ibv_pd *pd, struct mthca_qp *qp,
struct ibv_qp_cap *cap);
extern struct mthca_qp *mthca_find_qp(struct mthca_context *ctx, uint32_t qpn);
extern int mthca_store_qp(struct mthca_context *ctx, uint32_t qpn, struct mthca_qp *qp);
extern void mthca_clear_qp(struct mthca_context *ctx, uint32_t qpn);
extern int mthca_free_err_wqe(struct mthca_qp *qp, int is_send,
int index, int *dbd, uint32_t *new_wqe);
extern struct ibv_ah *mthca_create_ah(struct ibv_pd *pd, struct ibv_ah_attr *attr);
extern int mthca_destroy_ah(struct ibv_ah *ah);
extern int mthca_alloc_av(struct mthca_pd *pd, struct ibv_ah_attr *attr,
struct mthca_ah *ah);
extern void mthca_free_av(struct mthca_ah *ah);
extern int mthca_attach_mcast(struct ibv_qp *qp, union ibv_gid *gid, uint16_t lid);
extern int mthca_detach_mcast(struct ibv_qp *qp, union ibv_gid *gid, uint16_t lid);
#endif /* MTHCA_H */
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