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Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright(c) 2002-2011 Exar Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification are permitted provided the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Exar Corporation nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*$FreeBSD$*/
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#ifndef VXGE_HAL_BLOCKPOOL_H
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#define VXGE_HAL_BLOCKPOOL_H
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__EXTERN_BEGIN_DECLS
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/*
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* struct __hal_blockpool_entry_t - Block private data structure
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* @item: List header used to link.
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* @length: Length of the block
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* @memblock: Virtual address block
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* @dma_addr: DMA Address of the block.
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* @dma_handle: DMA handle of the block.
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* @acc_handle: DMA acc handle
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*
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* Block is allocated with a header to put the blocks into list.
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*
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*/
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typedef struct __hal_blockpool_entry_t {
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vxge_list_t item;
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u32 length;
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void *memblock;
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dma_addr_t dma_addr;
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pci_dma_h dma_handle;
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pci_dma_acc_h acc_handle;
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} __hal_blockpool_entry_t;
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/*
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* struct __hal_blockpool_t - Block Pool
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* @hldev: HAL device
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* @block_size: size of each block.
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* @Pool_size: Number of blocks in the pool
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* @pool_incr: Number of blocks to be requested/freed at a time from OS
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* @pool_min: Minimum number of block below which to request additional blocks
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* @pool_max: Maximum number of blocks above which to free additional blocks
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* @req_out: Number of block requests with OS out standing
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* @dma_flags: DMA flags
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* @free_block_list: List of free blocks
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* @pool_lock: Spin lock for the pool
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*
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* Block pool contains the DMA blocks preallocated.
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*
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*/
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typedef struct __hal_blockpool_t {
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vxge_hal_device_h hldev;
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u32 block_size;
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u32 pool_size;
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u32 pool_incr;
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u32 pool_min;
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u32 pool_max;
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u32 req_out;
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u32 dma_flags;
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vxge_list_t free_block_list;
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vxge_list_t free_entry_list;
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#if defined(VXGE_HAL_BP_POST) || defined(VXGE_HAL_BP_POST_IRQ)
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spinlock_t pool_lock;
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#endif
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} __hal_blockpool_t;
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vxge_hal_status_e
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__hal_blockpool_create(vxge_hal_device_h hldev,
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__hal_blockpool_t *blockpool,
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u32 pool_size,
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u32 pool_incr,
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u32 pool_min,
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u32 pool_max);
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void
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__hal_blockpool_destroy(__hal_blockpool_t *blockpool);
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__hal_blockpool_entry_t *
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__hal_blockpool_block_allocate(vxge_hal_device_h hldev,
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u32 size);
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void
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__hal_blockpool_block_free(vxge_hal_device_h hldev,
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__hal_blockpool_entry_t *entry);
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void *
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__hal_blockpool_malloc(vxge_hal_device_h hldev,
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u32 size,
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dma_addr_t *dma_addr,
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pci_dma_h *dma_handle,
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pci_dma_acc_h *acc_handle);
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void
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__hal_blockpool_free(vxge_hal_device_h hldev,
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void *memblock,
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u32 size,
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dma_addr_t *dma_addr,
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pci_dma_h *dma_handle,
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pci_dma_acc_h *acc_handle);
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vxge_hal_status_e
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__hal_blockpool_list_allocate(vxge_hal_device_h hldev,
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vxge_list_t *blocklist, u32 count);
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void
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__hal_blockpool_list_free(vxge_hal_device_h hldev,
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vxge_list_t *blocklist);
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__EXTERN_END_DECLS
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#endif /* VXGE_HAL_BLOCKPOOL_H */
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