98a95b9cc9
Now that the SPDX tag is in all drivers/staging/octeon/ files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/* 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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#include <asm/octeon/cvmx-config.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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