/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* This file is based on code from OCTEON SDK by Cavium Networks.
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*
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* Copyright (c) 2003-2007 Cavium Networks
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*/
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/*
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* A few defines are used to control the operation of this driver:
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* USE_ASYNC_IOBDMA
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* Use asynchronous IO access to hardware. This uses Octeon's asynchronous
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* IOBDMAs to issue IO accesses without stalling. Set this to zero
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* to disable this. Note that IOBDMAs require CVMSEG.
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* REUSE_SKBUFFS_WITHOUT_FREE
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* Allows the TX path to free an skbuff into the FPA hardware pool. This
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* can significantly improve performance for forwarding and bridging, but
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* may be somewhat dangerous. Checks are made, but if any buffer is reused
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* without the proper Linux cleanup, the networking stack may have very
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* bizarre bugs.
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*/
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#ifndef __ETHERNET_DEFINES_H__
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#define __ETHERNET_DEFINES_H__
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#ifdef CONFIG_NETFILTER
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#define REUSE_SKBUFFS_WITHOUT_FREE 0
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#else
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#define REUSE_SKBUFFS_WITHOUT_FREE 1
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#endif
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#define USE_ASYNC_IOBDMA (CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0)
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/* Maximum number of SKBs to try to free per xmit packet. */
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#define MAX_OUT_QUEUE_DEPTH 1000
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#define FAU_TOTAL_TX_TO_CLEAN (CVMX_FAU_REG_END - sizeof(u32))
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#define FAU_NUM_PACKET_BUFFERS_TO_FREE (FAU_TOTAL_TX_TO_CLEAN - sizeof(u32))
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#define TOTAL_NUMBER_OF_PORTS (CVMX_PIP_NUM_INPUT_PORTS + 1)
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#endif /* __ETHERNET_DEFINES_H__ */
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