CSS(4) BSD Programmer's Manual (VAX Architecture) CSS(4)
c
\bcs
\bss
\bs - DEC IMP-11A LH/DH IMP interface
S
\bSY
\bYN
\bNO
\bOP
\bPS
\bSI
\bIS
\bS
p
\bps
\bse
\beu
\bud
\bdo
\bo-
\b-d
\bde
\bev
\bvi
\bic
\bce
\be i
\bim
\bmp
\bp d
\bde
\bev
\bvi
\bic
\bce
\be c
\bcs
\bss
\bs0
\b0 a
\bat
\bt u
\bub
\bba
\ba0
\b0 c
\bcs
\bsr
\br 1
\b16
\b67
\b76
\b60
\b00
\b0 f
\bfl
\bla
\bag
\bgs
\bs 1
\b10
\b0 v
\bve
\bec
\bct
\bto
\bor
\br c
\bcs
\bss
\bsr
\bri
\bin
\bnt
\bt
c
\bcs
\bss
\bsx
\bxi
\bin
\bnt
\bt
D
\bDE
\bES
\bSC
\bCR
\bRI
\bIP
\bPT
\bTI
\bIO
\bON
\bN
The c
\bcs
\bss
\bs device provides a Local Host/Distant Host interface to an IMP. It
is normally used when participating in the DARPA Internet. The con-
troller itself is not accessible to users, but instead provides the hard-
ware support to the IMP interface described in imp(4). The configuration
entry for the imp must also include the _
\bp_
\bs_
\be_
\bu_
\bd_
\bo_
\b-_
\bd_
\be_
\bv_
\bi_
\bc_
\be as shown above.
D
\bDI
\bIA
\bAG
\bGN
\bNO
\bOS
\bST
\bTI
\bIC
\bCS
\bS
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: n
\bno
\bot
\bt a
\bal
\bli
\biv
\bve
\be.
\b. The initialization routine was entered even though the
device did not autoconfigure. This is indicates a system problem.
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: c
\bca
\ban
\bn'
\b't
\bt i
\bin
\bni
\bit
\bti
\bia
\bal
\bli
\biz
\bze
\be.
\b. Insufficient UNIBUS resources existed to ini-
tialize the device. This is likely to occur when the device is run on a
buffered data path on an 11/750 and other network interfaces are also
configured to use buffered data paths, or when it is configured to use
buffered data paths on an 11/730 (which has none).
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: i
\bim
\bmp
\bp d
\bdo
\boe
\bes
\bsn
\bn'
\b't
\bt r
\bre
\bes
\bsp
\bpo
\bon
\bnd
\bd,
\b, i
\bic
\bcs
\bsr
\br=
\b=%
\b%b
\bb.
\b. The driver attempted to initialize
the device, but the IMP failed to respond after 500 tries. Check the ca-
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: s
\bst
\btr
\bra
\bay
\by o
\bou
\but
\btp
\bpu
\but
\bt i
\bin
\bnt
\bte
\ber
\brr
\bru
\bup
\bpt
\bt c
\bcs
\bsr
\br=
\b=%
\b%b
\bb.
\b. An interrupt occurred when no out-
put had previously been started.
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: o
\bou
\but
\btp
\bpu
\but
\bt e
\ber
\brr
\bro
\bor
\br,
\b, o
\boc
\bcs
\bsr
\br=
\b=%
\b%b
\bb i
\bic
\bcs
\bsr
\br=
\b=%
\b%b
\bb.
\b. The device indicated a problem
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: r
\bre
\bec
\bcv
\bv e
\ber
\brr
\bro
\bor
\br,
\b, c
\bcs
\bsr
\br=
\b=%
\b%b
\bb.
\b. The device indicated a problem receiving data
c
\bcs
\bss
\bs%
\b%d
\bd:
\b: b
\bba
\bad
\bd l
\ble
\ben
\bng
\bgt
\bth
\bh=
\b=%
\b%d
\bd.
\b. An input operation resulted in a data transfer of
less than 0 or more than 1008 bytes of data into memory (according to the
word count register). This should never happen as the maximum size of a
host-IMP message is 1008 bytes.
H
\bHI
\bIS
\bST
\bTO
\bOR
\bRY
\bY
The c
\bcs
\bss
\bs interface appeared in 4.2BSD.
4.2 Berkeley Distribution June 5, 1993 1
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