* @(#)if_hyreg.h 7.1 (Berkeley) %G%
* $Header: if_hyreg.h,v 10.0 84/06/30 19:51:34 steveg Stable $
* Modifications from Berkeley 4.2 BSD
* Copyright (c) 1983, Tektronix Inc.
* Network Systems Corporation Hyperchannel interface
* supports A410 adapter interfaced via a DEC DR-11B, NSC PI-13 or PI-14
* (PI-14 is a PI-13 with different line drivers, software is
* Written by Steve Glaser, Tektronix Inc., July 1982
* DR11B code has not been fully checked out with 4.1a.
* The first adapters at Tek came with DR11Bs, and the code once worked,
* but those have been upgraded to PI-13s.
* The HYPERchannel driver sends and receives messages formatted:
* +---------------------------------------+ ---
* | HYPERchannel adapter header (hy_hdr) | |
* +---------------------------------------+ |
* | Internet Protocol header (ip) | message proper
* +---------------------------------------+ |
* | TCP header + user data | |
* | (if it all fits here) | |
* +---------------------------------------+ ---
* +---------------------------------------+ ---
* | TCP header + user data | associated data
* +---------------------------------------+ ---
* If all of the datagram will fit in the message proper (including
* the TCP header and user data) the entire datagram is passed in
* the message proper and the associated data feature of the HYPERchannel
* The mapping from internet addresses to HYPERchannel addresses is:
* +---------+---------+-----------------------+
* | network | special | HYPERchannel address |
* +---------+---------+-----------------------+
* |<------------ internet address ----------->|
* The hyperchannel address is decoded as follows:
* +-------------------+----------------+------+
* | adapter number | zero | port |
* +-------------------+----------------+------+
* The low 2 bits are port number (interpreted by hyperchannel hardware).
* The encoding of special bits is:
* 01 loop this packet back to the sender at the
* specified adapter (ip header source/destination addresses
* swapped before sending, command bits added to tell the
* remote HYPERchannel adapter debug & performance studies]
* this code acts like 02 (below) if the ip destination (before
* any swapping) and the destination address don't match (e.g.
* this packet is being routed through a gateway)
* 02 loop this packet back to the sender at the
* specified adapter, but go through the specified adapter's
* IP. This is for testing IP's store and forward mechanism.
* other undefined, currently treated as normal packet
#define MPSIZE 64 /* "Message Proper" size */
short hyd_wcr
; /* word count (negated) */
u_short hyd_bar
; /* bus address bits 15-0 */ u_short hyd_csr
; /* control and status */ u_short hyd_dbuf
; /* data buffer */#define S_ERROR 0100000 /* error */
#define S_NEX 0040000 /* non-existent memory error */
#define S_ATTN 0020000 /* attn (always zero) */
#define S_STKINTR 0010000 /* stacked interrupt */
#define S_MAINT 0010000 /* maintenance (not used) */
#define S_A 0004000 /* device status A (recieve data available) */
#define S_B 0002000 /* device status B (normal termination) */
#define S_C 0001000 /* device status C (abnormal termination) */
#define S_POWEROFF 0000400 /* power off indicator */
#define S_CYCLE 0000400 /* cycle (not used) */
#define S_READY 0000200 /* ready */
#define S_IE 0000100 /* interrupt enable */
#define S_XBA 0000060 /* bus address bit bits 17 and 16 */
#define S_CLRINT 0000014 /* clear stacked interrupt */
#define S_IATTN 0000010 /* interrupt on attention only */
#define S_WC 0000004 /* interrupt on word count == 0 only */
#define S_IATTNWC 0000000 /* interrupt on word count == 0 and attention */
#define S_BURST 0000002 /* burst mode DMA (not used) */
#define S_GO 0000001 /* go */
#define HY_CSR_BITS "\20\
\20ERROR\17NEX\16ATTN\15STKINTR\14RECV_DATA\13NORMAL\12ABNORMAL\11POWER\
\10READY\07IENABLE\06XBA17\05XBA16\04IATTN\03IWC\02BURST\01GO"
#define HYS_RECVDATA(x) (((x)->hyd_csr & S_A) != 0) /* get adapter data */
#define HYS_NORMAL(x) (((x)->hyd_csr & S_B) != 0) /* done normally */
#define HYS_ABNORMAL(x) (((x)->hyd_csr & S_C) != 0) /* done abnormally */
#define HYS_ERROR(x) (((x)->hyd_csr & S_ERROR) != 0) /* error condition */
#define HYS_DONE(x) (((x)->hyd_csr & (S_ERROR|S_B|S_C)) != 0)
* Function Codes for the Hyperchannel Adapter
* The codes are offset so they can be "or"ed into
#define HYF_XMITMSG 0x04 /* transmit message */
#define HYF_XMITDATA 0x08 /* transmit associated data */
#define HYF_XMITLSTDATA 0x0C /* transmit last associated data */
#define HYF_XMITLOCMSG 0x10 /* transmit local message */
#define HYF_INPUTMSG 0x24 /* input message proper */
#define HYF_INPUTDATA 0x28 /* input assiciated data */
#define HYF_STATUS 0x40 /* request status */
#define HYF_DUMPREGS 0x50 /* dump extention registers */
#define HYF_MARKP0 0x60 /* mark down port 0 */
#define HYF_MARKP1 0x64 /* mark down port 1 */
#define HYF_MARKP2 0x68 /* mark down port 2 */
#define HYF_MARKP3 0x6C /* mark down port 3 */
#define HYF_MP0RR 0x70 /* mark down port 0 and reroute messages */
#define HYF_MP1RR 0x74 /* mark down port 1 and reroute messages */
#define HYF_MP2RR 0x78 /* mark down port 2 and reroute messages */
#define HYF_MP3RR 0x7C /* mark down port 3 and reroute messages */
#define HYF_RSTATS 0xA0 /* read statistics */
#define HYF_RCSTATS 0xA4 /* read and clear statistics */
#define HYF_SETTEST 0xC0 /* enable test operations *set test mode) */
#define HYF_SADDR_LEN 0xC4 /* test mode: set address and length */
#define HYF_WBUFF 0xC8 /* test mode: write buffer */
#define HYF_RBUFF 0xCC /* test mode: read buffer */
#define HYF_CLRADAPTER 0xE0 /* clear adapter */
#define HYF_END_OP 0xE4 /* end operation */
#define HYF_CLRWFMSG 0xE6 /* clear wait for mwssage */
#define HYF_WAITFORMSG 0xE8 /* wait for message */
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