d580860e12
Features: Jumbo frames (up to 9600), LRO (Large Receive Offload),
TSO (TCP segmentation offload), RTH (Receive Traffic Hash).
Submitted by: Sriram Rapuru at Exar
MFC after: 2 weeks
138 lines
4.1 KiB
C
138 lines
4.1 KiB
C
/*-
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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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