mirror of
https://github.com/freebsd/freebsd-src
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d6b92ffa99
kernel APIs. List of sources used: 1) rdma-core was cloned from "https://github.com/linux-rdma/rdma-core.git" Top commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a75 2) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.git Top commit 85f841cf209f791c89a075048a907020e924528d 3) libibmad was cloned from "git://git.openfabrics.org/~iraweiny/libibmad.git" Tag 1.3.13 with some additional patches from Mellanox. 4) infiniband-diags was cloned from "git://git.openfabrics.org/~iraweiny/infiniband-diags.git" Tag 1.6.7 with some additional patches from Mellanox. Added the required Makefiles for building and installing. Sponsored by: Mellanox Technologies
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/*
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* Copyright (c) 2005-2014 Intel Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#if !defined(CMA_H)
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#define CMA_H
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#include <config.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <infiniband/endian.h>
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#include <semaphore.h>
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#include <stdatomic.h>
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#include <rdma/rdma_cma.h>
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#include <infiniband/ib.h>
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#define PFX "librdmacm: "
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/*
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* Fast synchronization for low contention locking.
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*/
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typedef struct {
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sem_t sem;
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_Atomic(int) cnt;
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} fastlock_t;
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static inline void fastlock_init(fastlock_t *lock)
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{
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sem_init(&lock->sem, 0, 0);
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atomic_store(&lock->cnt, 0);
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}
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static inline void fastlock_destroy(fastlock_t *lock)
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{
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sem_destroy(&lock->sem);
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}
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static inline void fastlock_acquire(fastlock_t *lock)
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{
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if (atomic_fetch_add(&lock->cnt, 1) > 0)
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sem_wait(&lock->sem);
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}
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static inline void fastlock_release(fastlock_t *lock)
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{
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if (atomic_fetch_sub(&lock->cnt, 1) > 1)
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sem_post(&lock->sem);
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}
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__be16 ucma_get_port(struct sockaddr *addr);
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int ucma_addrlen(struct sockaddr *addr);
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void ucma_set_sid(enum rdma_port_space ps, struct sockaddr *addr,
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struct sockaddr_ib *sib);
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int ucma_max_qpsize(struct rdma_cm_id *id);
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int ucma_complete(struct rdma_cm_id *id);
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int ucma_shutdown(struct rdma_cm_id *id);
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static inline int ERR(int err)
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{
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errno = err;
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return -1;
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}
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int ucma_init(void);
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extern int af_ib_support;
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#define RAI_ROUTEONLY 0x01000000
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void ucma_ib_init(void);
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void ucma_ib_cleanup(void);
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void ucma_ib_resolve(struct rdma_addrinfo **rai,
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const struct rdma_addrinfo *hints);
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struct ib_connect_hdr {
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uint8_t cma_version;
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uint8_t ip_version; /* IP version: 7:4 */
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uint16_t port;
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uint32_t src_addr[4];
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uint32_t dst_addr[4];
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#define cma_src_ip4 src_addr[3]
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#define cma_src_ip6 src_addr[0]
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#define cma_dst_ip4 dst_addr[3]
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#define cma_dst_ip6 dst_addr[0]
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};
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#endif /* CMA_H */
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