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buf.c
(2 KB)
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config.h
(300 B)
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cq.c
(21.79 KB)
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dbrec.c
(3.79 KB)
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doorbell.h
(2.27 KB)
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mlx4-abi.h
(3.78 KB)
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mlx4.c
(10.62 KB)
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mlx4.h
(12.91 KB)
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mmio.h
(3.06 KB)
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qp.c
(20.04 KB)
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srq.c
(7.98 KB)
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verbs.c
(28.89 KB)
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wqe.h
(3.4 KB)
Editing: buf.c
/* * Copyright (c) 2006, 2007 Cisco, 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. */ #include <config.h> #include <stdlib.h> #include <errno.h> #include <sys/mman.h> #include "mlx4.h" int mlx4_alloc_buf(struct mlx4_buf *buf, size_t size, int page_size) { int ret; buf->length = align(size, page_size); buf->buf = mmap(NULL, buf->length, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (buf->buf == MAP_FAILED) return errno; ret = ibv_dontfork_range(buf->buf, size); if (ret) munmap(buf->buf, buf->length); return ret; } void mlx4_free_buf(struct mlx4_buf *buf) { if (buf->length) { ibv_dofork_range(buf->buf, buf->length); munmap(buf->buf, buf->length); } }
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