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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $Id: fore.h,v 1.8 1998/08/26 23:28:57 mks Exp $
*
*/
/*
* FORE Systems 200-Series Adapter Support
* ---------------------------------------
*
* Protocol and implementation definitions
*
*/
#ifndef _FORE_H
#define _FORE_H
#ifndef FORE_DEV_NAME
#define FORE_DEV_NAME "hfa"
#endif
#define FORE_MAX_UNITS 8 /* Maximum number of devices we support */
#define FORE_MIN_UCODE 0x20300 /* Minimum microcode version we support */
#define FORE_IFF_MTU 9188 /* Network interface MTU */
#define FORE_MAX_VCC 1024 /* Maximum number of open VCCs */
#define FORE_MAX_VPI 0 /* Maximum VPI value */
#define FORE_MAX_VCI 1023 /* Maximum VCI value */
#define FORE_DEF_RATE 0x00000000 /* Default rate control = disabled */
#define XMIT_QUELEN 32 /* Length of transmit queue */
#define RECV_QUELEN 32 /* Length of receive queue */
#define CMD_QUELEN 8 /* Length of command queue */
#define FORE_TIME_TICK 5 /* Watchdog timer tick (seconds) */
#define FORE_WATCHDOG 3 /* Device watchdog timeout (ticks) */
#define FORE_RECV_RETRY 3 /* Wait for receive queue entry retry count */
#define FORE_RECV_DELAY 10 /* Wait for receive queue entry delay (usec) */
/*
* Receive Buffer strategies
*/
#define BUF_MIN_VCC 4 /* Minimum for buffer supply calculations */
#ifdef FORE_SBUS
#if defined(sun4c)
#define BUF_DATA_ALIGN 32 /* Fore-required data alignment */
#elif defined(sun4m)
#define BUF_DATA_ALIGN 64 /* Fore-required data alignment */
#endif
#endif
#ifdef FORE_PCI
#define BUF_DATA_ALIGN 4 /* Fore-required data alignment */
#endif
#if defined(BSD)
/*
* Strategy 1 Small - mbuf
* Strategy 1 Large - cluster mbuf
*
* XXX buffer controls - the RECV_MAX_SEGS calculation comes out wrong
* using the true buffer size values if the CP really only does full-cell
* filling of a particular buffer - we must clarify this...it also appears
* the minimum buffer size is 64, even if the CP can only fit in 1 cell.
*/
#define SIZEOF_Buf_handle 16 /* XXX sizeof(Buf_handle) */
#if BSD >= 199103
#undef m_ext
typedef struct m_ext M_ext;
#define m_ext M_dat.MH.MH_dat.MH_ext
#define BUF1_SM_HOFF (sizeof(struct m_hdr)) /* Buffer-to-handle offset */
#define BUF1_SM_HDR (sizeof(struct m_hdr) + sizeof(struct pkthdr))
#define BUF1_SM_LEN (MHLEN)
#define BUF1_LG_HOFF (sizeof(struct m_hdr) + sizeof(struct pkthdr) \
+ sizeof(M_ext)) /* Buffer-to-handle offset */
#else
#define BUF1_SM_HOFF (MMINOFF) /* Buffer-to-handle offset */
#define BUF1_SM_HDR (MMINOFF)
#define BUF1_SM_LEN (MLEN)
#define BUF1_LG_HOFF (MMINOFF + 16) /* Buffer-to-handle offset */
#endif
/*
* BUF1_SM_DOFF - CP data offset into buffer data space
* BUF1_SM_SIZE - Buffer size
*
* These should be defined as follows, but we need compile-time constants:
*
* #define BUF1_SM_DOFF (roundup(BUF1_SM_HOFF + SIZEOF_Buf_handle,
* BUF_DATA_ALIGN) - BUF1_SM_HDR)
* #define BUF1_SM_SIZE MAX(BUF1_SM_LEN - BUF1_SM_DOFF, 64)
*
*/
#if ((BSD >= 199103) && defined(FORE_PCI))
#define BUF1_SM_DOFF ((BUF1_SM_HOFF + SIZEOF_Buf_handle) - BUF1_SM_HDR)
#define BUF1_SM_SIZE (BUF1_SM_LEN - BUF1_SM_DOFF)
#endif
#if ((BSD < 199103) && defined(FORE_SBUS) && defined(sun4c))
#define BUF1_SM_DOFF (BUF_DATA_ALIGN - BUF1_SM_HDR)
#define BUF1_SM_SIZE (BUF1_SM_LEN - BUF1_SM_DOFF)
#endif
#if ((BSD < 199103) && defined(FORE_SBUS) && defined(sun4m))
#define BUF1_SM_DOFF (BUF_DATA_ALIGN - BUF1_SM_HDR)
#define BUF1_SM_SIZE (64)
#endif
#define BUF1_SM_QUELEN 16 /* Entries in supply queue */
#define BUF1_SM_CPPOOL 256 /* Buffers in CP-resident pool */
#define BUF1_SM_ENTSIZE 8 /* Buffers in each supply queue entry */
#define BUF1_LG_DOFF 0 /* CP data offset into mbuf data space */
#define BUF1_LG_SIZE MCLBYTES /* Buffer size */
#define BUF1_LG_QUELEN 16 /* Entries in supply queue */
#define BUF1_LG_CPPOOL 512 /* Buffers in CP-resident pool */
#define BUF1_LG_ENTSIZE 8 /* Buffers in each supply queue entry */
#endif /* defined(BSD) */
#endif /* _FORE_H */
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