2009-05-06 00:35:21 +00:00
|
|
|
/**********************************************************************
|
|
|
|
* Author: Cavium Networks
|
|
|
|
*
|
|
|
|
* Contact: support@caviumnetworks.com
|
|
|
|
* This file is part of the OCTEON SDK
|
|
|
|
*
|
|
|
|
* Copyright (c) 2003-2007 Cavium Networks
|
|
|
|
*
|
|
|
|
* This file is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License, Version 2, as
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
*
|
|
|
|
* This file is distributed in the hope that it will be useful, but
|
|
|
|
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
|
|
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
|
|
|
|
* NONINFRINGEMENT. See the GNU General Public License for more
|
|
|
|
* details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this file; if not, write to the Free Software
|
|
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
* or visit http://www.gnu.org/licenses/.
|
|
|
|
*
|
|
|
|
* This file may also be available under a different license from Cavium.
|
|
|
|
* Contact Cavium Networks for more information
|
|
|
|
**********************************************************************/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* A few defines are used to control the operation of this driver:
|
|
|
|
* CONFIG_CAVIUM_RESERVE32
|
|
|
|
* This kernel config options controls the amount of memory configured
|
|
|
|
* in a wired TLB entry for all processes to share. If this is set, the
|
|
|
|
* driver will use this memory instead of kernel memory for pools. This
|
|
|
|
* allows 32bit userspace application to access the buffers, but also
|
|
|
|
* requires all received packets to be copied.
|
|
|
|
* CONFIG_CAVIUM_OCTEON_NUM_PACKET_BUFFERS
|
|
|
|
* This kernel config option allows the user to control the number of
|
|
|
|
* packet and work queue buffers allocated by the driver. If this is zero,
|
|
|
|
* the driver uses the default from below.
|
|
|
|
* USE_SKBUFFS_IN_HW
|
|
|
|
* Tells the driver to populate the packet buffers with kernel skbuffs.
|
|
|
|
* This allows the driver to receive packets without copying them. It also
|
|
|
|
* means that 32bit userspace can't access the packet buffers.
|
|
|
|
* USE_HW_TCPUDP_CHECKSUM
|
|
|
|
* Controls if the Octeon TCP/UDP checksum engine is used for packet
|
|
|
|
* output. If this is zero, the kernel will perform the checksum in
|
|
|
|
* software.
|
|
|
|
* USE_ASYNC_IOBDMA
|
|
|
|
* Use asynchronous IO access to hardware. This uses Octeon's asynchronous
|
|
|
|
* IOBDMAs to issue IO accesses without stalling. Set this to zero
|
|
|
|
* to disable this. Note that IOBDMAs require CVMSEG.
|
|
|
|
* REUSE_SKBUFFS_WITHOUT_FREE
|
|
|
|
* Allows the TX path to free an skbuff into the FPA hardware pool. This
|
|
|
|
* can significantly improve performance for forwarding and bridging, but
|
|
|
|
* may be somewhat dangerous. Checks are made, but if any buffer is reused
|
|
|
|
* without the proper Linux cleanup, the networking stack may have very
|
|
|
|
* bizarre bugs.
|
|
|
|
*/
|
|
|
|
#ifndef __ETHERNET_DEFINES_H__
|
|
|
|
#define __ETHERNET_DEFINES_H__
|
|
|
|
|
|
|
|
#include "cvmx-config.h"
|
|
|
|
|
|
|
|
|
|
|
|
#define OCTEON_ETHERNET_VERSION "1.9"
|
|
|
|
|
|
|
|
#ifndef CONFIG_CAVIUM_RESERVE32
|
|
|
|
#define CONFIG_CAVIUM_RESERVE32 0
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define USE_SKBUFFS_IN_HW 1
|
|
|
|
#ifdef CONFIG_NETFILTER
|
|
|
|
#define REUSE_SKBUFFS_WITHOUT_FREE 0
|
|
|
|
#else
|
|
|
|
#define REUSE_SKBUFFS_WITHOUT_FREE 1
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define USE_HW_TCPUDP_CHECKSUM 1
|
|
|
|
|
|
|
|
/* Enable Random Early Dropping under load */
|
|
|
|
#define USE_RED 1
|
|
|
|
#define USE_ASYNC_IOBDMA (CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0)
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allow SW based preamble removal at 10Mbps to workaround PHYs giving
|
|
|
|
* us bad preambles.
|
|
|
|
*/
|
|
|
|
#define USE_10MBPS_PREAMBLE_WORKAROUND 1
|
|
|
|
/*
|
|
|
|
* Use this to have all FPA frees also tell the L2 not to write data
|
|
|
|
* to memory.
|
|
|
|
*/
|
|
|
|
#define DONT_WRITEBACK(x) (x)
|
|
|
|
/* Use this to not have FPA frees control L2 */
|
|
|
|
/*#define DONT_WRITEBACK(x) 0 */
|
|
|
|
|
2009-06-23 23:20:56 +00:00
|
|
|
/* Maximum number of SKBs to try to free per xmit packet. */
|
2009-05-06 00:35:21 +00:00
|
|
|
#define MAX_OUT_QUEUE_DEPTH 1000
|
|
|
|
|
2010-02-15 23:06:47 +00:00
|
|
|
#define FAU_TOTAL_TX_TO_CLEAN (CVMX_FAU_REG_END - sizeof(uint32_t))
|
|
|
|
#define FAU_NUM_PACKET_BUFFERS_TO_FREE (FAU_TOTAL_TX_TO_CLEAN - sizeof(uint32_t))
|
|
|
|
|
2009-05-06 00:35:21 +00:00
|
|
|
#define TOTAL_NUMBER_OF_PORTS (CVMX_PIP_NUM_INPUT_PORTS+1)
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* __ETHERNET_DEFINES_H__ */
|