freebsd-dev/sys/dev/hatm/if_hatmconf.h

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/*
* Copyright (c) 2001-2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Hartmut Brandt <harti@freebsd.org>
*
* $FreeBSD$
*
* Default configuration
*/
/* configuration */
#define HE_CONFIG_VPI_BITS 2
#define HE_CONFIG_VCI_BITS 10
/* interrupt group 0 only */
/* the size must be 1 <= size <= 1023 */
#define HE_CONFIG_IRQ0_SIZE 256
#define HE_CONFIG_IRQ0_THRESH 224 /* retrigger interrupt */
#define HE_CONFIG_IRQ0_LINE HE_REGM_IRQ_A /* routing */
/* don't change these */
#define HE_CONFIG_TXMEM (128 * 1024) /* words */
#define HE_CONFIG_RXMEM (64 * 1024) /* words */
#define HE_CONFIG_LCMEM (512 * 1024) /* words */
/* group 0 - all AALs except AAL.raw */
/* receive group 0 buffer pools (mbufs and mbufs+cluster) */
/* the size must be a power of 2: 4 <= size <= 8192 */
#define HE_CONFIG_RBPS0_SIZE 2048 /* entries per queue */
#define HE_CONFIG_RBPS0_THRESH 256 /* interrupt threshold */
#define HE_CONFIG_RBPL0_SIZE 512 /* entries per queue */
#define HE_CONFIG_RBPL0_THRESH 32 /* interrupt threshold */
/* receive group 0 buffer return queue */
/* the size must be a power of 2: 1 <= size <= 16384 */
#define HE_CONFIG_RBRQ0_SIZE 512 /* entries in queue */
#define HE_CONFIG_RBRQ0_THRESH 256 /* interrupt threshold */
#define HE_CONFIG_RBRQ0_TOUT 10 /* interrupt timeout */
#define HE_CONFIG_RBRQ0_PCNT 5 /* packet count threshold */
/* group 1 - raw cells */
/* receive group 1 small buffer pool */
/* the size must be a power of 2: 4 <= size <= 8192 */
#define HE_CONFIG_RBPS1_SIZE 1024 /* entries in queue */
#define HE_CONFIG_RBPS1_THRESH 512 /* interrupt threshold */
/* receive group 1 buffer return queue */
/* the size must be a power of 2: 1 <= size <= 16384 */
#define HE_CONFIG_RBRQ1_SIZE 512 /* entries in queue */
#define HE_CONFIG_RBRQ1_THRESH 256 /* interrupt threshold */
#define HE_CONFIG_RBRQ1_TOUT 100 /* interrupt timeout */
#define HE_CONFIG_RBRQ1_PCNT 25 /* packet count threshold */
/* there is only one TPD queue */
/* the size must be a power of 2: 1 <= size <= 4096 */
#define HE_CONFIG_TPDRQ_SIZE 2048 /* entries in queue */
/* transmit group 0 */
/* the size must be a power of 2: 1 <= size <= 16384 */
#define HE_CONFIG_TBRQ_SIZE 512 /* entries in queue */
#define HE_CONFIG_TBRQ_THRESH 400 /* interrupt threshold */
/* Maximum number of TPDs to allocate to a single VCC. This
* number should depend on the cell rate and the maximum allowed cell delay */
#define HE_CONFIG_TPD_MAXCC 2048
/* Maximum number of external mbuf pages */
#define HE_CONFIG_MAX_MBUF_PAGES 256
/* Maximum number of TPDs used for one packet */
#define HE_CONFIG_MAX_TPD_PER_PACKET \
((((HE_MAX_PDU + MCLBYTES - 1) / MCLBYTES + 2) / 3) + 2)
/* Number of TPDs to reserve for close operations */
#define HE_CONFIG_TPD_RESERVE 32
/* Number of TPDs per VCC when to re-enable flow control */
#define HE_CONFIG_TPD_FLOW_ENB 80
/* MCR for flushing CBR and ABR connections at close */
#define HE_CONFIG_FLUSH_RATE 200000