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1820df7a2d
Host ATM Research Platform (HARP), Network Computing Services, Inc. This software was developed with the support of the Defense Advanced Research Projects Agency (DARPA).
145 lines
4.8 KiB
C
145 lines
4.8 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $Id: fore.h,v 1.8 1998/08/26 23:28:57 mks Exp $
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*
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*/
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/*
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* FORE Systems 200-Series Adapter Support
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* ---------------------------------------
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*
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* Protocol and implementation definitions
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*
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*/
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#ifndef _FORE_H
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#define _FORE_H
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#ifndef FORE_DEV_NAME
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#define FORE_DEV_NAME "hfa"
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#endif
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#define FORE_MAX_UNITS 8 /* Maximum number of devices we support */
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#define FORE_MIN_UCODE 0x20300 /* Minimum microcode version we support */
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#define FORE_IFF_MTU 9188 /* Network interface MTU */
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#define FORE_MAX_VCC 1024 /* Maximum number of open VCCs */
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#define FORE_MAX_VPI 0 /* Maximum VPI value */
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#define FORE_MAX_VCI 1023 /* Maximum VCI value */
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#define FORE_DEF_RATE 0x00000000 /* Default rate control = disabled */
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#define XMIT_QUELEN 32 /* Length of transmit queue */
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#define RECV_QUELEN 32 /* Length of receive queue */
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#define CMD_QUELEN 8 /* Length of command queue */
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#define FORE_TIME_TICK 5 /* Watchdog timer tick (seconds) */
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#define FORE_WATCHDOG 3 /* Device watchdog timeout (ticks) */
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#define FORE_RECV_RETRY 3 /* Wait for receive queue entry retry count */
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#define FORE_RECV_DELAY 10 /* Wait for receive queue entry delay (usec) */
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/*
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* Receive Buffer strategies
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*/
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#define BUF_MIN_VCC 4 /* Minimum for buffer supply calculations */
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#ifdef FORE_SBUS
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#if defined(sun4c)
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#define BUF_DATA_ALIGN 32 /* Fore-required data alignment */
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#elif defined(sun4m)
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#define BUF_DATA_ALIGN 64 /* Fore-required data alignment */
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#endif
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#endif
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#ifdef FORE_PCI
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#define BUF_DATA_ALIGN 4 /* Fore-required data alignment */
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#endif
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#if defined(BSD)
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/*
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* Strategy 1 Small - mbuf
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* Strategy 1 Large - cluster mbuf
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*
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* XXX buffer controls - the RECV_MAX_SEGS calculation comes out wrong
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* using the true buffer size values if the CP really only does full-cell
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* filling of a particular buffer - we must clarify this...it also appears
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* the minimum buffer size is 64, even if the CP can only fit in 1 cell.
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*/
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#define SIZEOF_Buf_handle 16 /* XXX sizeof(Buf_handle) */
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#if BSD >= 199103
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#undef m_ext
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typedef struct m_ext M_ext;
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#define m_ext M_dat.MH.MH_dat.MH_ext
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#define BUF1_SM_HOFF (sizeof(struct m_hdr)) /* Buffer-to-handle offset */
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#define BUF1_SM_HDR (sizeof(struct m_hdr) + sizeof(struct pkthdr))
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#define BUF1_SM_LEN (MHLEN)
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#define BUF1_LG_HOFF (sizeof(struct m_hdr) + sizeof(struct pkthdr) \
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+ sizeof(M_ext)) /* Buffer-to-handle offset */
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#else
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#define BUF1_SM_HOFF (MMINOFF) /* Buffer-to-handle offset */
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#define BUF1_SM_HDR (MMINOFF)
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#define BUF1_SM_LEN (MLEN)
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#define BUF1_LG_HOFF (MMINOFF + 16) /* Buffer-to-handle offset */
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#endif
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/*
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* BUF1_SM_DOFF - CP data offset into buffer data space
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* BUF1_SM_SIZE - Buffer size
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*
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* These should be defined as follows, but we need compile-time constants:
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*
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* #define BUF1_SM_DOFF (roundup(BUF1_SM_HOFF + SIZEOF_Buf_handle,
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* BUF_DATA_ALIGN) - BUF1_SM_HDR)
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* #define BUF1_SM_SIZE MAX(BUF1_SM_LEN - BUF1_SM_DOFF, 64)
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*
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*/
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#if ((BSD >= 199103) && defined(FORE_PCI))
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#define BUF1_SM_DOFF ((BUF1_SM_HOFF + SIZEOF_Buf_handle) - BUF1_SM_HDR)
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#define BUF1_SM_SIZE (BUF1_SM_LEN - BUF1_SM_DOFF)
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#endif
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#if ((BSD < 199103) && defined(FORE_SBUS) && defined(sun4c))
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#define BUF1_SM_DOFF (BUF_DATA_ALIGN - BUF1_SM_HDR)
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#define BUF1_SM_SIZE (BUF1_SM_LEN - BUF1_SM_DOFF)
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#endif
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#if ((BSD < 199103) && defined(FORE_SBUS) && defined(sun4m))
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#define BUF1_SM_DOFF (BUF_DATA_ALIGN - BUF1_SM_HDR)
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#define BUF1_SM_SIZE (64)
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#endif
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#define BUF1_SM_QUELEN 16 /* Entries in supply queue */
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#define BUF1_SM_CPPOOL 256 /* Buffers in CP-resident pool */
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#define BUF1_SM_ENTSIZE 8 /* Buffers in each supply queue entry */
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#define BUF1_LG_DOFF 0 /* CP data offset into mbuf data space */
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#define BUF1_LG_SIZE MCLBYTES /* Buffer size */
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#define BUF1_LG_QUELEN 16 /* Entries in supply queue */
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#define BUF1_LG_CPPOOL 512 /* Buffers in CP-resident pool */
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#define BUF1_LG_ENTSIZE 8 /* Buffers in each supply queue entry */
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#endif /* defined(BSD) */
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#endif /* _FORE_H */
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