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PDP-10 Archives
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BB-M081Y-SM
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monitor-sources/phyklp.mac
There are 21 other files named phyklp.mac in the archive. Click here to see a list.
; Edit= 9036 to PHYKLP.MAC on 15-Nov-88 by RASPUZZI
;Make sure that the system's name gets sent over during PHYKLP START/STACK/ACK
;sequence. Also, when the NODE% JSYS changes the name, have the local system
;notify remote systems. Finally, make CLUDGR send over the node name in the
;last 2 words of the optional connection data. I'm out of breath.
; Edit= 9034 to PHYKLP.MAC on 9-Nov-88 by RASPUZZI
;Add code to send system name over wire during START/STACK/ACK sequence so
;that it can be stored in the system block on remote node.
; Edit= 9016 to PHYKLP.MAC on 8-Nov-88 by LOMARTIRE
;Merge Production changes to BUG text
; Edit= 8967 to PHYKLP.MAC on 13-Sep-88 by RASPUZZI, for SPR #21879
;Revamp edit 8857 such that CFS joining takes care of checking out the wire
;status of the local node before joining the CFS cluster.
; Edit= 8909 to PHYKLP.MAC on 17-Aug-88 by LOMARTIRE
;Fix typeo in edit 8908
; Edit= 8908 to PHYKLP.MAC on 16-Aug-88 by GSCOTT
;Update BUG. documentation.
; Edit= 8857 to PHYKLP.MAC on 5-Jul-88 by RASPUZZI, for SPR #21879
;Prevent hung systems in CFSJYN by turning on IDNRA and IDNRB when we notice
;that our port has somehow gone defunct.
; Edit= 8843 to PHYKLP.MAC on 17-May-88 by RASPUZZI (TCO 7.1288)
;Resurrect routine SANCHK by removing the RET in the first line. This will
;give it something to do when KLPDBG is turned on. Hopefully, various bugs can
;now be caught with this routine working again.
; UPD ID= 8661, RIP:<7.MONITOR>PHYKLP.MAC.15, 22-Feb-88 18:48:34 by GSCOTT
;TCO 7.1238 - Set KLPILP, KLPIPA, and KLPUMV normally not dumpable.
; UPD ID= 8585, RIP:<7.MONITOR>PHYKLP.MAC.14, 11-Feb-88 16:54:23 by GSCOTT
;TCO 7.1218 - Update copyright date.
; UPD ID= 8459, RIP:<7.MONITOR>PHYKLP.MAC.13, 5-Feb-88 09:20:55 by GSCOTT
;More of TCO 7.1210 - Fix spelling in KLPMCE
; UPD ID= 8455, RIP:<7.MONITOR>PHYKLP.MAC.12, 4-Feb-88 22:01:42 by GSCOTT
;More of TCO 7.1210 - Set KLPMVW to not normally dumpable.
; UPD ID= 8432, RIP:<7.MONITOR>PHYKLP.MAC.11, 4-Feb-88 14:33:12 by GSCOTT
;TCO 7.1210 - Set CIPDFQ, KLPCBN, KLPCBS, KLPCGN, KLPCKE, KLPCRR, KLPCSR,
; KLPCVC, KLPDED, KLPDPP, KLPDRQ, KLPDUM, KLPEBP, KLPEBQ, KLPELT, KLPEPB,
; KLPERE, KLPERQ, KLPERR, KLPFST, KLPHNG, KLPIBN, KLPINP, KLPIRD, KLPIRP,
; KLPLBF, KLPLOA, KLPMBS, KLPMCE, KLPMCR, KLPNDE, KLPNDG, KLPNEN, KLPNMG,
; KLPNOA, KLPOPC, KLPOVC, KLPPIA, KLPPLS, KLPPPD, KLPPPE, KLPRAE, KLPRCE,
; KLPRRQ, KLPRSF, KLPRSH, KLPSCE, KLPSCR, KLPSDM, KLPSRL, KLPSRM, KLPSTP,
; KLPSTR, KLPSWC, KLPSWO, KLPTAE, KLPTMO, KLPTPE, KLPUCP, KLPUMV, KLPUPC,
; KLPWAB, KLPWAG, KLPWBB, KLPWBG, and KLPWIR not dumpable.
; UPD ID= 8397, RIP:<7.MONITOR>PHYKLP.MAC.10, 28-Jan-88 14:48:27 by RASPUZZI
;TCO 7.1202 - Add KLPENT. This word will hold the high precision time when
; PHYKLP's interrupt service routine was entered. Similar to
; NISRV's ENTINT.
; UPD ID= 317, RIP:<7.MONITOR>PHYKLP.MAC.9, 3-Dec-87 14:56:51 by RASPUZZI
;TCO 7.1156 - Correct typo under debug conditional from previous edit
; UPD ID= 296, RIP:<7.MONITOR>PHYKLP.MAC.8, 12-Nov-87 16:57:55 by GSCOTT
;TCO 7.1134 - Handle CI20 microcode versions properly, repaginate.
; UPD ID= 251, RIP:<7.MONITOR>PHYKLP.MAC.7, 4-Nov-87 16:43:04 by MCCOLLUM
;TCO 7.1112 - Look for IPALOD on BS: instead of PS:
; UPD ID= 164, RIP:<7.MONITOR>PHYKLP.MAC.6, 19-Oct-87 17:15:30 by LOMARTIRE
;TCO 7.1072 - Add IS7020; used by the cluster-wide ENQ and CLUDGR projects
; UPD ID= 74, RIP:<7.MONITOR>PHYKLP.MAC.5, 12-Aug-87 14:48:25 by MCCOLLUM
;TCO 7.1037 - Set up SBLIST with 30-bit values. Use MSEC1 for section number.
; UPD ID= 41, RIP:<7.MONITOR>PHYKLP.MAC.4, 15-Jul-87 14:40:41 by LOMARTIRE
;TCO 7.1021 - Fix CLOSV4 to KLPDMP BUGHLT if cluster dump is in progress
; UPD ID= 7, RIP:<7.MONITOR>PHYKLP.MAC.3, 28-May-87 16:09:42 by RASPUZZI
;TCO 7.1002 - Implement PMOVE/M instructions.
; *** Edit 7444 to PHYKLP.MAC by LOMARTIRE on 13-Apr-87, for SPR #21550
; Prevent KLPNOM and KLPHOG BUGHLTs when RH20 in slot 7
; *** Edit 7422 to PHYKLP.MAC by RASPUZZI on 10-Mar-87, for SPR #21395
; Use major and minor verion number when sending software version to remote
; nodes on CI.
; *** Edit 7255 to PHYKLP.MAC by GRANT on 10-Mar-86
; Put correct reason code in READ-COUNTERS packet after a planned CRAM CPE
; *** Edit 7238 to PHYKLP.MAC by GRANT on 7-Feb-86
; Prevent extraneous reload of CI when link board problem is happening
; *** Edit 7237 to PHYKLP.MAC by GRANT on 7-Feb-86
; In WIRBAD, decide to reload earlier so CFRECNs don't result
; *** Edit 7223 to PHYKLP.MAC by GRANT on 7-Jan-86
; Make sure port is stopped in STPKLP
; *** Edit 7211 to PHYKLP.MAC by GRANT on 18-Dec-85
; Add CI counters for WATCH
; *** Edit 7210 to PHYKLP.MAC by GRANT on 18-Dec-85, for SPR #20924
; Reload CI when LINK BOARD arbitration timeout problem occurs
; *** Edit 7185 to PHYKLP.MAC by GRANT on 5-Nov-85
; Prevent KPALVH BUGHLT at system start up when KL is CI node number 15
; Edit 7134 to PHYKLP.MAC by GRANT on 15-Aug-85 (TCO 6-1-1522)
; Turn off the NI at BUGHLT and PAR>SHUT time
; Edit 7126 to PHYKLP.MAC by GRANT on 13-Aug-85 (TCO 6-1-1518)
; Recover from unplanned CRAM parity error
; Edit 7121 to PHYKLP.MAC by GRANT on 12-Aug-85 (TCO 6-1-1511)
; Fix powerfail/restart for CI
; UPD ID= 2291, SNARK:<6.1.MONITOR>PHYKLP.MAC.259, 29-Jun-85 22:59:05 by GRANT
;TCO 6.1.1477 - Clean up loading the CI microcode
; UPD ID= 2279, SNARK:<6.1.MONITOR>PHYKLP.MAC.258, 25-Jun-85 14:59:22 by GRANT
;TCO 6.1.1473 - Forget about NO-ANSWER and use maintenance state for diags.
;Also, listing cleanup.
; UPD ID= 2254, SNARK:<6.1.MONITOR>PHYKLP.MAC.257, 20-Jun-85 18:03:34 by GRANT
;TCO 6.1.1467 - don't need READ-COUNTER to get ucode version anymore
; UPD ID= 2244, SNARK:<6.1.MONITOR>PHYKLP.MAC.256, 19-Jun-85 17:48:31 by GRANT
;TCO 6.1.1462 - Prevent CIPDFQ BUGINFs. Create new entry point KLPRQC into
;routine KLPRQA and call it to process the response queue without enabling
;the port.
; UPD ID= 2222, SNARK:<6.1.MONITOR>PHYKLP.MAC.255, 12-Jun-85 18:01:30 by GRANT
;TCO 6.1.1446 - Stop sending STARTs if REQUEST-IDs are no longer being answered.
;Other minor changes involving REQUEST-ID handling.
;Change KLPNOR to KLPNOA and update its documentation.
;Also, save the result of the CONI that's done in KLPCHK.
;Change IPAFOO back to IPALOD.
; UPD ID= 2156, SNARK:<6.1.MONITOR>PHYKLP.MAC.254, 5-Jun-85 10:39:09 by MCCOLLUM
;TCO 6.1.1406 - Update copyright notice.
; UPD ID= 2006, SNARK:<6.1.MONITOR>PHYKLP.MAC.253, 24-May-85 12:19:01 by MCCOLLUM
;Fix KLPLOA BUG.
; UPD ID= 1979, SNARK:<6.1.MONITOR>PHYKLP.MAC.252, 15-May-85 14:22:00 by GRANT
;TCO 6.1.1378 - At KLPINI, check for KLIPAness before zapping channel
; UPD ID= 1978, SNARK:<6.1.MONITOR>PHYKLP.MAC.251, 14-May-85 17:49:36 by GRANT
;TCO 6.1.1379 - put KLPNMG and KLPNDG under CIBUGX control
; UPD ID= 1966, SNARK:<6.1.MONITOR>PHYKLP.MAC.250, 13-May-85 10:13:14 by GRANT
;TCO 6.1.1377 - Create routines KLPUCD and LODUCD. Don't signal CIFORK anymore
;because monitor now loads the CI ucode.
; UPD ID= 1919, SNARK:<6.1.MONITOR>PHYKLP.MAC.249, 7-May-85 20:57:03 by MCCOLLUM
;TCO 6.1.1238 - Fix more BUG. documentation
; UPD ID= 1864, SNARK:<6.1.MONITOR>PHYKLP.MAC.248, 3-May-85 10:57:58 by GRANT
;Put KLPIBN BUGINF under CIBUGX
; UPD ID= 1853, SNARK:<6.1.MONITOR>PHYKLP.MAC.247, 30-Apr-85 14:47:47 by MCCOLLUM
;TCO 6.1.1238 - Fix more BUG. documentation
; UPD ID= 1739, SNARK:<6.1.MONITOR>PHYKLP.MAC.246, 9-Apr-85 12:06:04 by MCCOLLUM
;TCO 6.1.1238 - Fix BUG. documentation
; UPD ID= 1720, SNARK:<6.1.MONITOR>PHYKLP.MAC.245, 8-Apr-85 07:44:12 by GRANT
;TCO 6.1.1310 - Add routine NOANSR to test ucode's diagnostic NO-ANSWER bit
; UPD ID= 1673, SNARK:<6.1.MONITOR>PHYKLP.MAC.244, 25-Mar-85 08:21:32 by GRANT
;TCO 6.1.1284 - Set CILD instead of JB0FLG
; UPD ID= 1645, SNARK:<6.1.MONITOR>PHYKLP.MAC.243, 18-Mar-85 10:06:43 by GRANT
;TCO 6.1.1273 - In CHKWIR, send only 1 loopback per second
; UPD ID= 1594, SNARK:<6.1.MONITOR>PHYKLP.MAC.242, 6-Mar-85 06:32:44 by GRANT
;Change JSR BUGHLTs to real BUG. for release.
; UPD ID= 1519, SNARK:<6.1.MONITOR>PHYKLP.MAC.241, 13-Feb-85 14:56:20 by GRANT
;TCO 6.1.1198 - In CHKOPC, remove the check for closed virutal circuits.
; UPD ID= 1498, SNARK:<6.1.MONITOR>PHYKLP.MAC.240, 11-Feb-85 09:02:17 by GRANT
;TCO 6.1.1184 - Create routine ISIT20
; UPD ID= 1490, SNARK:<6.1.MONITOR>PHYKLP.MAC.239, 8-Feb-85 08:29:10 by LOMARTIRE
;More TCO 6.1.1096 - Move the .CFHSC function of CNFIG% to PHYMSC
; UPD ID= 1455, SNARK:<6.1.MONITOR>PHYKLP.MAC.238, 1-Feb-85 14:42:55 by GRANT
;Undo TCO 6.1.1151 - put the calls to PHYSTC back in
; UPD ID= 1453, SNARK:<6.1.MONITOR>PHYKLP.MAC.237, 1-Feb-85 14:19:58 by LOMARTIRE
;Change the priority used by CLOBUF and SNDREC
; UPD ID= 1394, SNARK:<6.1.MONITOR>PHYKLP.MAC.236, 22-Jan-85 21:21:47 by GRANT
;TCO 6.1.1151 - Remove unnecessary calls to PHYSTC
; UPD ID= 1368, SNARK:<6.1.MONITOR>PHYKLP.MAC.235, 21-Jan-85 10:21:00 by GRANT
;Change KLPERR from BUGCHK to BUGINF
; UPD ID= 1263, SNARK:<6.1.MONITOR>PHYKLP.MAC.234, 4-Jan-85 08:10:53 by GRANT
;TCO 6.1.1108 - Add ability to boot system ignoring KLIPA and then later use it.
; UPD ID= 1256, SNARK:<6.1.MONITOR>PHYKLP.MAC.233, 2-Jan-85 09:05:14 by LOMARTIRE
;More TCO 6.1.1096 - Use .CFNHN instead of .CFNND
; UPD ID= 1248, SNARK:<6.1.MONITOR>PHYKLP.MAC.232, 31-Dec-84 09:33:51 by LOMARTIRE
;TCO 6.1.1096 - Add the .CFHSC function code for CNFIG% to return HSC node names
; UPD ID= 1204, SNARK:<6.1.MONITOR>PHYKLP.MAC.231, 13-Dec-84 07:06:39 by GRANT
;TCO 6.1.1086 - Change KLPNUP to KLPOVC and add KLPCVC.
; UPD ID= 1059, SNARK:<6.1.MONITOR>PHYKLP.MAC.230, 13-Nov-84 09:06:26 by LOMARTIRE
;Use new priority symbols KLPHI, KLPMED, KLPLOW, KLPDRG
; UPD ID= 991, SNARK:<6.1.MONITOR>PHYKLP.MAC.229, 7-Nov-84 13:44:21 by GRANT
;TCO 6.2272 - After a KLPHNG, go CIOFF and clean the queues.
; UPD ID= 985, SNARK:<6.1.MONITOR>PHYKLP.MAC.228, 7-Nov-84 10:40:56 by GRANT
;TCO 6.2270 - In CPEDON, retrieve the CSR from the CDB.
; UPD ID= 5033, SNARK:<6.MONITOR>PHYKLP.MAC.227, 29-Oct-84 14:29:36 by HAUDEL
;In UMAP, check for the existence of the BHD before unmapping. Mutiple unmaps
;of the same buffer destroy the BSD linked list table.
; UPD ID= 5028, SNARK:<6.MONITOR>PHYKLP.MAC.226, 29-Oct-84 07:58:38 by GRANT
;In SCAERR, BUGINF if the error is Invalid Buffer Name
; UPD ID= 5023, SNARK:<6.MONITOR>PHYKLP.MAC.225, 28-Oct-84 08:50:31 by GRANT
;In KLPNLF and KLPNDF, check for no KLIPA on system
; UPD ID= 5012, SNARK:<6.MONITOR>PHYKLP.MAC.224, 26-Oct-84 07:56:01 by GRANT
;In SCAERR, don't close VC if error is Invalid Buffer Name
; UPD ID= 4996, SNARK:<6.MONITOR>PHYKLP.MAC.223, 24-Oct-84 19:59:46 by GRANT
;In STRTDT, use new symbol SCAVER
; UPD ID= 4986, SNARK:<6.MONITOR>PHYKLP.MAC.222, 24-Oct-84 05:52:10 by GRANT
;In INTERP, increase KELEN so we don't have to truncate the text so often.
; UPD ID= 4955, SNARK:<6.MONITOR>PHYKLP.MAC.221, 18-Oct-84 14:48:38 by GRANT
;Keep node name in SB.
; UPD ID= 4923, SNARK:<6.MONITOR>PHYKLP.MAC.220, 11-Oct-84 21:20:56 by GRANT
;In PTHSTS, make sure we have a KLIPA before proceeding
; UPD ID= 4909, SNARK:<6.MONITOR>PHYKLP.MAC.219, 10-Oct-84 15:10:21 by GRANT
;At INTER2, wrong length being passed to SEBCPY. Use P3 instead of WORDS.
; UPD ID= 4905, SNARK:<6.MONITOR>PHYKLP.MAC.218, 8-Oct-84 18:20:28 by GRANT
;Routine EP2BUG needs a RET
; UPD ID= 4904, SNARK:<6.MONITOR>PHYKLP.MAC.217, 8-Oct-84 18:17:48 by GRANT
;Use RSI to initialize KLPOWN, RIDTMO, and SSTTMO.
;In KLPINT, make ERROR.SYS entry and output BUGxxx before telling SCA that
;the port is gone.
; UPD ID= 4897, SNARK:<6.MONITOR>PHYKLP.MAC.216, 6-Oct-84 06:50:50 by GRANT
;Reorder KLPOPS and associated tables
; UPD ID= 4893, SNARK:<6.MONITOR>PHYKLP.MAC.215, 2-Oct-84 09:35:30 by GRANT
;In INTERP, make ERROR.SYS entry 246 for ERROR-LOG-MESSAGE packet (PPD byte 5)
; UPD ID= 4887, SNARK:<6.MONITOR>PHYKLP.MAC.214, 26-Sep-84 17:38:26 by GRANT
;RCTPER needs to be an RSI
; UPD ID= 4886, SNARK:<6.MONITOR>PHYKLP.MAC.213, 26-Sep-84 17:29:13 by GRANT
;Minor adjustment to KLPRCT
; UPD ID= 4885, SNARK:<6.MONITOR>PHYKLP.MAC.212, 26-Sep-84 16:40:44 by GRANT
;Create routine KLPRCT to be called from CHKR
; UPD ID= 4878, SNARK:<6.MONITOR>PHYKLP.MAC.211, 25-Sep-84 14:02:03 by GRANT
;Decrease NDSTIM from 30 to 10 seconds
; UPD ID= 4876, SNARK:<6.MONITOR>PHYKLP.MAC.210, 25-Sep-84 12:05:21 by HAUDEL
;Get the status word (.PKSTS) to determine the formatting mode at GIVSC6:
; UPD ID= 4868, SNARK:<6.MONITOR>PHYKLP.MAC.209, 24-Sep-84 16:12:23 by GRANT
;Do a READ-COUNTERS whenever a CI wire status change takes place and make an
;ERROR.SYS entry which contains the counters returns.
;Use DEFSTR CDVER.
; UPD ID= 4854, SNARK:<6.MONITOR>PHYKLP.MAC.208, 17-Sep-84 15:31:06 by GRANT
;Make KLPSWO and KLPRSH BUGINFs instead of CHKs.
;Revise DISKLP and create a special entry point for KIKKLP so we don't start
;the KLIPA at funny addresses.
; UPD ID= 4822, SNARK:<6.MONITOR>PHYKLP.MAC.207, 17-Sep-84 10:42:41 by PURRETTA
;Update copyright notice
; UPD ID= 4776, SNARK:<6.MONITOR>PHYKLP.MAC.206, 30-Aug-84 08:26:32 by GRANT
;In CLNCOM, don't call STSHIT anymore.
;Fix CIONLT.
; UPD ID= 4764, SNARK:<6.MONITOR>PHYKLP.MAC.205, 28-Aug-84 10:12:40 by GRANT
;After calling RETCLO, continue with the rest of the response queue
; UPD ID= 4762, SNARK:<6.MONITOR>PHYKLP.MAC.204, 27-Aug-84 16:30:07 by HALL
;In KLPRQA, use the correct AC to transfer through RETCLO
; UPD ID= 4751, SNARK:<6.MONITOR>PHYKLP.MAC.203, 24-Aug-84 17:43:11 by MCLEAN
;get previous edit right....
; UPD ID= 4748, SNARK:<6.MONITOR>PHYKLP.MAC.202, 24-Aug-84 13:45:28 by MCLEAN
;FIX PTHSTS NOT TO NEED P1
; UPD ID= 4735, SNARK:<6.MONITOR>PHYKLP.MAC.201, 23-Aug-84 20:30:26 by HALL
;Get the port to use both paths on free choice after a REQID or loopback
; succeeds
; INTLPB - OPEN BOTH PATHS ON ALL OPEN V.C.'S
; INTIDR - OPEN BOTH PATHS, AND MARK BOTH AS TURNED ON
; UPD ID= 4705, SNARK:<6.MONITOR>PHYKLP.MAC.200, 17-Aug-84 19:59:22 by GRANT
;In KLPRLC and KLPDMC, remove SETZM UCDTIM.
;Make KLPNDM a BUGHLT.
;In ANSWE1, fix bug introduced when QEMPT was invented.
; UPD ID= 4686, SNARK:<6.MONITOR>PHYKLP.MAC.199, 14-Aug-84 13:17:47 by GRANT
;Create patchable cell NDSTTM to hold NDSTIM.
;Increase NDSTIM from 10 to 30 seconds.
;Make KLPNRL a BUGHLT.
;At KLPCH7, check to see that the port is still running.
; UPD ID= 4681, SNARK:<6.MONITOR>PHYKLP.MAC.198, 13-Aug-84 16:34:55 by CDUNN
;TEMPORARILY move the definition of IDPAO and IDPBO to SCAPAR.
; UPD ID= 4607, SNARK:<6.MONITOR>PHYKLP.MAC.197, 27-Jul-84 13:05:24 by MCLEAN
;In STRKLP, call PHYSTC when port is started.
;Move KLPVER to STG.
;Add version numbers as optional data to KLPUMV.
;Add fork number as optional data to KLPLOA and KLPDUM.
;Put ucode version in T1 for KLPERR BUGCHK.
; UPD ID= 4582, SNARK:<6.MONITOR>PHYKLP.MAC.196, 24-Jul-84 15:03:12 by GRANT
;In CHKPCB, reload port when we find PIA is gone
; UPD ID= 4580, SNARK:<6.MONITOR>PHYKLP.MAC.195, 23-Jul-84 20:24:53 by GRANT
;In RIDSTS, redefine IDPx to be IDPxO.
;In INTIDR and RIDERR, better management of no-response vs. other errors.
;Create routine PTHSTS.
;In CLOPTH, preserve T2.
; UPD ID= 4566, SNARK:<6.MONITOR>PHYKLP.MAC.194, 19-Jul-84 07:15:12 by GRANT
;A better fix to RIDERR/INTRID interaction.
; UPD ID= 4564, SNARK:<6.MONITOR>PHYKLP.MAC.193, 18-Jul-84 21:03:05 by GRANT
;Turn on the calls to PHYSTC.
;In RIDERR, fix clobbering of T1.
; UPD ID= 4559, SNARK:<6.MONITOR>PHYKLP.MAC.192, 18-Jul-84 17:29:30 by GRANT
;In KLPFQE, check for both queues and if neither is empty just return quietly
;In INTRCT, BUGINF if we load a ucode version different from what we
;are expecting. KLPVER is now 612.
; UPD ID= 4549, SNARK:<6.MONITOR>PHYKLP.MAC.191, 16-Jul-84 21:01:10 by HALL
;RET at the beginning of SANCHK (edit originally made by GRANT, lost by
;merge on 7/14)
; UPD ID= 4548, SNARK:<6.MONITOR>PHYKLP.MAC.190, 16-Jul-84 16:56:33 by MOSER
;MAKE MAPBUF GET HIGH DENSITY COUNT IN BYTES NOT WORDS
; UPD ID= 4528, SNARK:<6.MONITOR>PHYKLP.MAC.189, 14-Jul-84 08:55:42 by HALL
;Add ability to send a shutdown notification to a node whose v.c. we
;are closing. This will allow it to know that a v.c. has been closed when
;it happens, rather than later when a START arrives or a packet comes back
;with error status.
;Technically, we need to be sure we send these only to nodes that process
;protocol level 1. Since none of these exists in our environment, we aren't
;rushing to solve the potential problem.
; Add shutdown message to DGDSP and DGEDSP tables
; Add routine INTSHT to process a shutdown
; Make CLOSVC send a shutdown message if SCA initiated the closing
; Add shutdown to STRLEN, but cheat and use the length of an ACK
; UPD ID= 4527, SNARK:<6.MONITOR>PHYKLP.MAC.188, 14-Jul-84 08:51:09 by GRANT
;Implement the handling of packets which have B0 off and B1 on. This means
;the packet failed on one path and then succeeded on the other; the port has
;stopped using the failed path for packets under virtual circuit contol until
;TOPS-20 tells it to use it again.
;Restructure the interrupt routine so there are separate dispatch paths (based
;on op code) for packets with errors and for packets without errors.
;Fix bugs in wire status change processing.
; UPD ID= 4413, SNARK:<6.MONITOR>PHYKLP.MAC.185, 2-Jul-84 07:17:31 by GRANT
;Move bit clearing from KLPDAC to DIAG.MAC.
;Remove CLEANQ, it's no longer used.
;Implement OPENVC and CLOSVC so SCA can better manage its VC data.
;Continually send REQUEST-IDs to all nodes, even on open VCs.
;PHYKLP now calls SC.ERR only, it never calls SC.OFL.
; UPD ID= 4397, SNARK:<6.MONITOR>PHYKLP.MAC.184, 27-Jun-84 17:15:12 by GRANT
;In KLPDAC, clear CS.OFL
; UPD ID= 4395, SNARK:<6.MONITOR>PHYKLP.MAC.183, 27-Jun-84 14:55:11 by HALL
;GIVSC1 - BUGINF if op code "remote" bit and PKSCA disagree
; UPD ID= 4390, SNARK:<6.MONITOR>PHYKLP.MAC.181, 26-Jun-84 19:41:20 by GRANT
;In INTNBF, CAIE should be CAME
; UPD ID= 4388, SNARK:<6.MONITOR>PHYKLP.MAC.180, 26-Jun-84 15:10:09 by GRANT
;In NONODS, SBLIST is now sparse so search entire list
; UPD ID= 4385, SNARK:<6.MONITOR>PHYKLP.MAC.179, 26-Jun-84 08:01:51 by GRANT
;In GTNPTH, clear T3 before setting up the path
; UPD ID= 4384, SNARK:<6.MONITOR>PHYKLP.MAC.178, 25-Jun-84 15:08:26 by GRANT
;After KLPHNG BUGINF, don't try to restart port, just ask for a reload.
;In CLNCOM, CIOFF/CION while calling GIVSC1.
; UPD ID= 4370, SNARK:<6.MONITOR>PHYKLP.MAC.177, 21-Jun-84 11:17:25 by MCLEAN
;FIX PROBLEM WITH CDB HAVING THE WRONG SIZE FOR THE NUMBER OF KDB'S
; UPD ID= 4362, SNARK:<6.MONITOR>PHYKLP.MAC.176, 20-Jun-84 12:32:52 by GRANT
;Replace KLPNOB BUGCHK with KLPNDG and KLPNMG.
;In GIVSCA, return buffer to port's free queue if error in locally-generated
;packet and response bit not set.
;In SENDVC, check for VC being open.
; UPD ID= 4343, SNARK:<6.MONITOR>PHYKLP.MAC.175, 15-Jun-84 13:46:51 by GRANT
;Add sending of loopback packets to once-a-second code and BUGINF whenever
;a wire's status changes. Temporarily revise CIONLT.
;Remove obsolete comment before KLPTBP.
; UPD ID= 4321, SNARK:<6.MONITOR>PHYKLP.MAC.174, 11-Jun-84 10:52:52 by HAUDEL
;Same as edit 4317, changes meant for that edit were not put into the sources.
; UPD ID= 4317, SNARK:<6.MONITOR>PHYKLP.MAC.173, 11-Jun-84 10:32:04 by HAUDEL
;Changes to MAPBUF for 10 nibbles per word for core dump mode; IMTMCR to
;change bughlt to chk and output more additional data; INTCLO to return
;to user if error.
; UPD ID= 4292, SNARK:<6.MONITOR>PHYKLP.MAC.172, 4-Jun-84 13:28:08 by HAUDEL
;Change MAPBUF routine, various changes to Maintenance Data functions
;including CLOBUF and INTCLO routines.
; UPD ID= 4280, SNARK:<6.MONITOR>PHYKLP.MAC.171, 1-Jun-84 12:19:47 by LOMARTIRE
;Make appropriate changes for SBI to node number conversion
; UPD ID= 4236, SNARK:<6.MONITOR>PHYKLP.MAC.170, 21-May-84 15:26:41 by MCLEAN
;PUT CHANNEL BACK IN LH OF .SBDSP
; UPD ID= 4227, SNARK:<6.MONITOR>PHYKLP.MAC.169, 16-May-84 17:17:44 by HALL
;Add to the magic list of things to be done.
; UPD ID= 4180, SNARK:<6.MONITOR>PHYKLP.MAC.168, 8-May-84 14:03:05 by CDUNN
;Fix data fields in START packets. Maximum message and datagram need to be in
;bytes and system ID needs to be system serial number.
; UPD ID= 4170, SNARK:<6.MONITOR>PHYKLP.MAC.167, 2-May-84 07:53:52 by HALL
;Load P4 with address of system block before calling SC.DMA
; UPD ID= 4163, SNARK:<6.MONITOR>PHYKLP.MAC.166, 1-May-84 13:57:45 by LOMARTIRE
;Since SC.INT now returns +1 always, remove KLPSCA BUGCHK
; UPD ID= 4146, SNARK:<6.MONITOR>PHYKLP.MAC.165, 26-Apr-84 06:35:46 by GRANT
;CLOBUF routine needs ::
; UPD ID= 4140, SNARK:<6.MONITOR>PHYKLP.MAC.164, 25-Apr-84 15:22:48 by LOMARTIRE
;Add node number and CID to KLPIST BUGCHK
; UPD ID= 4125, SNARK:<6.MONITOR>PHYKLP.MAC.163, 25-Apr-84 10:03:52 by HAUDEL
;Add READ/WRITE Maintenance Data routines.
; Add op code to KLPOPS and KLPROU tables.
; Change interrupt routines for the READ/WRITE Maint. Data functions.
; Add a Close Buffer routine.
; Store Remote node's state in SB on each receipt of an IDREC.
; UPD ID= 4118, SNARK:<6.MONITOR>PHYKLP.MAC.162, 24-Apr-84 15:36:07 by HAUDEL
;Change AOBJN to loop through all op codes of the KLPOPS table.
; UPD ID= 4096, SNARK:<6.MONITOR>PHYKLP.MAC.161, 18-Apr-84 17:31:57 by HALL
;Fix bug in which we were sometimes sending REQID's to our own node
;(KLIPA can't handle that).
; Create INCRID, and call it when we're not interested in checking Q1
; In INCRID, never allow our node to remain in RIDNXT
; In CHKPOL call INCRID instead of NXTRID if we just want to increment
; UPD ID= 4079, SNARK:<6.MONITOR>PHYKLP.MAC.160, 12-Apr-84 07:20:11 by HALL
;In STRKLP, if we can't get a buffer to do the read counters, just return
;happily.
; UPD ID= 4078, SNARK:<6.MONITOR>PHYKLP.MAC.159, 12-Apr-84 06:55:31 by HALL
;Typo in previous edit
; UPD ID= 4063, SNARK:<6.MONITOR>PHYKLP.MAC.158, 11-Apr-84 14:49:06 by GRANT
;Add routines KLPNLF and KLPNDF. Add BUGCHK in STROPN.
;In STRTDT, change SCA version number so we receive error logging packets.
; UPD ID= 4000, SNARK:<6.MONITOR>PHYKLP.MAC.157, 28-Mar-84 20:41:32 by GRANT
;In CIONLT, return +1 if we decide to dump the KLIPA
; UPD ID= 3982, SNARK:<6.MONITOR>PHYKLP.MAC.156, 27-Mar-84 07:40:30 by GRANT
;In STRKLP, fix comments
; UPD ID= 3981, SNARK:<6.MONITOR>PHYKLP.MAC.155, 27-Mar-84 07:31:29 by GRANT
;In PCBINI, remove unnecessary SETZMs (now only called at system start up).
;In STRKLP, get the ucode version after port has been started.
;Enhance processing of READ-COUNTERS response.
;Random coding convention clean up.
; UPD ID= 3978, SNARK:<6.MONITOR>PHYKLP.MAC.154, 26-Mar-84 20:00:24 by GRANT
;Declare KLIPA dead if 2 consecutive start attempts failed.
;In KLPEAC, call CFDIAG.
;In CIONLT, KLIPA state must be CHNRUN (running) before trying loopback.
; UPD ID= 3976, SNARK:<6.MONITOR>PHYKLP.MAC.153, 26-Mar-84 10:33:25 by HAUDEL
;In RMTRST set up P1 for call to PPDGDB
; UPD ID= 3972, SNARK:<6.MONITOR>PHYKLP.MAC.152, 25-Mar-84 06:18:00 by GRANT
;In KLPCCW, remove check for controller type.
; UPD ID= 3970, SNARK:<6.MONITOR>PHYKLP.MAC.151, 24-Mar-84 08:43:12 by GRANT
;In CHKPAK, change RET to JSR BUGHLT.
;In INTNBF, prevent buffer from going to 2 queues.
; UPD ID= 3949, SNARK:<6.MONITOR>PHYKLP.MAC.150, 20-Mar-84 07:41:58 by GRANT
;In KLPINI, PPDINX, PCBINI, and KLPCHK, load KLIPA ucode at system start up
; UPD ID= 3943, SNARK:<6.MONITOR>PHYKLP.MAC.149, 19-Mar-84 09:56:09 by HAUDEL
;Remove call to CLOSVC from RMTRST and put in SCAMPI
; UPD ID= 3914, SNARK:<6.MONITOR>PHYKLP.MAC.148, 13-Mar-84 06:28:00 by GRANT
;Change CRAM parity error BUGxxx names to be of the form KLPxxx
; UPD ID= 3912, SNARK:<6.MONITOR>PHYKLP.MAC.147, 13-Mar-84 05:56:54 by GRANT
;Add op code 205 (Close Buffer).
;Add error code to KLPRSF's optional data. Change some :: to :.
; UPD ID= 3911, SNARK:<6.MONITOR>PHYKLP.MAC.146, 12-Mar-84 21:03:04 by GRANT
;In STRKLP, add KLPRSF and move KLPSTR to end of routine
; UPD ID= 3907, SNARK:<6.MONITOR>PHYKLP.MAC.145, 12-Mar-84 15:49:49 by HAUDEL
;Make RESET REMOTE and START REMOTE changes.
; UPD ID= 3888, SNARK:<6.MONITOR>PHYKLP.MAC.144, 11-Mar-84 07:42:10 by GRANT
;Change DSPBAD to KLPBDS, CIPERR to KLPERR, and CIPNDF to KLPUPC
; UPD ID= 3887, SNARK:<6.MONITOR>PHYKLP.MAC.143, 11-Mar-84 07:24:41 by GRANT
;Make KLPDRG a BUGINF instead of BUGCHK
; UPD ID= 3886, SNARK:<6.MONITOR>PHYKLP.MAC.142, 11-Mar-84 07:21:45 by GRANT
;In KLPRIP/KLPDIP, save fork number instead of job number
; UPD ID= 3882, SNARK:<6.MONITOR>PHYKLP.MAC.141, 8-Mar-84 06:42:40 by GRANT
;Missing SAVEAC in previous edit
; UPD ID= 3877, SNARK:<6.MONITOR>PHYKLP.MAC.140, 7-Mar-84 20:24:56 by GRANT
;In SCAERR, do SETCKT (to close)
; UPD ID= 3872, SNARK:<6.MONITOR>PHYKLP.MAC.139, 7-Mar-84 15:42:57 by GRANT
;Add KLPVER
; UPD ID= 3871, SNARK:<6.MONITOR>PHYKLP.MAC.138, 7-Mar-84 15:29:36 by GRANT
;In PCBINI, store channel logout word address in PCB.
;In GIVSCA, add missing LOAD of VC state.
;Change EMPMBQ to KLPNOB and EMPRSQ to KLPNRQ.
; UPD ID= 3861, SNARK:<6.MONITOR>PHYKLP.MAC.137, 6-Mar-84 13:54:12 by GRANT
;Use new PCB format
; UPD ID= 3851, SNARK:<6.MONITOR>PHYKLP.MAC.136, 5-Mar-84 12:13:28 by GRANT
;Add dumping the port.
; UPD ID= 3834, SNARK:<6.MONITOR>PHYKLP.MAC.135, 29-Feb-84 19:36:57 by GRANT
;Transmitter timeout is now a planned CRAM parity error
; UPD ID= 3807, SNARK:<6.MONITOR>PHYKLP.MAC.134, 29-Feb-84 11:04:16 by GRANT
;In STRTDT, temporarily say we don't support PPD byte 5 (error log packets)
; UPD ID= 3790, SNARK:<6.MONITOR>PHYKLP.MAC.133, 28-Feb-84 15:24:43 by HAUDEL
;More TCO 6.1546 - Performance Counter format change.
;Also change call of SC.RBF to RETDG in INTRCT.
; UPD ID= 3751, SNARK:<6.MONITOR>PHYKLP.MAC.132, 25-Feb-84 06:22:59 by GRANT
;Remove old REPEAT 0ed code.
;In CHKPCB, don't assume one-to-one mapping of virtual page to physical.
; UPD ID= 3749, SNARK:<6.MONITOR>PHYKLP.MAC.131, 24-Feb-84 21:04:41 by GRANT
;In STRTDT, clear second word of sending-system field.
;In STROPN, do SETCKT to close port's VC.
;Remove extraneous AOBJN in PCBINI.
;In KLPINI, initialize state of KLIPA to CHNUNK (unknown).
;In CIOLNT, BUGHLT after 5 consectuvie failures.
; UPD ID= 3710, SNARK:<6.MONITOR>PHYKLP.MAC.130, 21-Feb-84 09:36:24 by GRANT
;In KLPINI, set up channel number and port type for ERROR.SYS packets
; UPD ID= 3706, SNARK:<6.MONITOR>PHYKLP.MAC.129, 21-Feb-84 06:52:44 by GRANT
;In STRKLP, reset PCB before starting KLIPA.
;Change KLPSTR from BUGCHK to BUGINF.
; UPD ID= 3701, SNARK:<6.MONITOR>PHYKLP.MAC.128, 19-Feb-84 06:36:48 by GRANT
;In STRKLP, reset the PCB.
;Use DEFSTRs for ucode version in CDBVER.
;Change routine CHKNOD to GETNOD and test for node number in KLPCH1.
;Repeat 0 routines RDVER, RDCRAM, WTVER, and WTCRAM.
;Minor enhancement to PIAKLP. Fix its callers.
; UPD ID= 3694, SNARK:<6.MONITOR>PHYKLP.MAC.127, 15-Feb-84 14:59:07 by GRANT
;Implement "states" of the KLIPA.
;Create routine CLENCQ to clean the command queues. Revise routine STSHIT.
;Enhance KLPCPE.
;In BLDSBK, don't put CI channel number in LH of .SBDSP.
; UPD ID= 3683, SNARK:<6.MONITOR>PHYKLP.MAC.126, 10-Feb-84 14:38:47 by LOMARTIRE
;Use .SBAPB not SBAPCB since name was removed due to word location dependence
; UPD ID= 3677, SNARK:<6.MONITOR>PHYKLP.MAC.125, 8-Feb-84 21:18:13 by MILLER
;Once more
; UPD ID= 3671, SNARK:<6.MONITOR>PHYKLP.MAC.124, 8-Feb-84 11:03:22 by MILLER
;Improve code of previous edit
; UPD ID= 3669, SNARK:<6.MONITOR>PHYKLP.MAC.123, 8-Feb-84 10:06:04 by MILLER
;Add path selection argument to CIONLT
; UPD ID= 3665, SNARK:<6.MONITOR>PHYKLP.MAC.122, 8-Feb-84 08:37:44 by LOMARTIRE
;Make LNKDFQ and LNKMFQ return plus 1 always instead of plus 2 always
; UPD ID= 3621, SNARK:<6.MONITOR>PHYKLP.MAC.121, 1-Feb-84 13:11:25 by GRANT
;In STRTDT, use the new definitions for word .SRRSV
; UPD ID= 3604, SNARK:<6.MONITOR>PHYKLP.MAC.120, 31-Jan-84 14:34:53 by GRANT
;In CHKPOL, send a REQUEST-ID if the VC state is closed. (This will be
;removed when OPENVC is implemented.)
; UPD ID= 3597, SNARK:<6.MONITOR>PHYKLP.MAC.119, 31-Jan-84 07:40:55 by GRANT
;Add some form feeds.
;Eliminate routine SETPKT, put the code in KLPSND.
;Use PKSRB when clearing all software response bits.
;Use KLPPRx symbols for command priority.
; UPD ID= 3591, SNARK:<6.MONITOR>PHYKLP.MAC.118, 30-Jan-84 13:57:37 by GRANT
;Get correct optional data in CPE BUGINFs
; UPD ID= 3585, SNARK:<6.MONITOR>PHYKLP.MAC.117, 29-Jan-84 06:47:46 by GRANT
;Add KLPCGN BUGCHK when we time out the READ-REGISTER in PPDINX
; UPD ID= 3584, SNARK:<6.MONITOR>PHYKLP.MAC.116, 29-Jan-84 06:25:13 by GRANT
;Add KLPLBF BUGCHK when a loopback packet gets an error
; UPD ID= 3579, SNARK:<6.MONITOR>PHYKLP.MAC.115, 28-Jan-84 11:54:33 by GRANT
;In CHKPOL, don't send REQUEST-IDs to nodes we've already heard from.
;Remove CHKCVC, it won't be used.
; UPD ID= 3578, SNARK:<6.MONITOR>PHYKLP.MAC.114, 28-Jan-84 09:15:42 by GRANT
;Don't need to zero the packet in CIONLT
; UPD ID= 3576, SNARK:<6.MONITOR>PHYKLP.MAC.113, 28-Jan-84 08:06:52 by GRANT
;Add ENDBS. to BLSUB. routines.
;Change JRST DSPBUG to CALL DSPBUG.
; UPD ID= 3575, SNARK:<6.MONITOR>PHYKLP.MAC.112, 28-Jan-84 06:56:28 by GRANT
;In SCAERR, check for VC being open.
;,In INTSDT, enhance error checking of named buffer packets.
; UPD ID= 3568, SNARK:<6.MONITOR>PHYKLP.MAC.111, 27-Jan-84 17:13:29 by GRANT
;Remove the test for START-SENT in GIVSCA
; UPD ID= 3541, SNARK:<6.MONITOR>PHYKLP.MAC.110, 25-Jan-84 16:45:47 by MCLEAN
;MAPBUF SHOULD NOT USE P6!! CHANGE IT TO P2
; UPD ID= 3532, SNARK:<6.MONITOR>PHYKLP.MAC.109, 24-Jan-84 21:04:06 by MCLEAN
;ADD SOME COMMENTS TO UMAP
; UPD ID= 3531, SNARK:<6.MONITOR>PHYKLP.MAC.108, 24-Jan-84 20:51:46 by MCLEAN
;CHANGES TO PROTECT BHD/BSD'S FROM INTERRUPT LEVEL
; UPD ID= 3526, SNARK:<6.MONITOR>PHYKLP.MAC.107, 24-Jan-84 16:41:47 by HAUDEL
;TCO 6.1546 - More performance counter.
; UPD ID= 3525, SNARK:<6.MONITOR>PHYKLP.MAC.106, 24-Jan-84 15:45:54 by HAUDEL
;TCO 6.1546 - Performance counter change.
; UPD ID= 3523, SNARK:<6.MONITOR>PHYKLP.MAC.105, 24-Jan-84 14:09:28 by PAETZOLD
;TCO 6.1951 - Move around the push in KLPRST
; UPD ID= 3520, SNARK:<6.MONITOR>PHYKLP.MAC.104, 24-Jan-84 10:05:18 by GRANT
;Do a single CONI in KLPINT. Analyze CRAM parity errors. Clean up SCAERR.
;Put another buffer on the queue if we get a free queue error interrupt.
; UPD ID= 3489, SNARK:<6.MONITOR>PHYKLP.MAC.103, 20-Jan-84 11:09:14 by GRANT
;Clean up routines STRSTR and STKSTR
; UPD ID= 3484, SNARK:<6.MONITOR>PHYKLP.MAC.102, 20-Jan-84 06:52:52 by GRANT
;Add to the list of questions
;Minor clean up in GIVSCA
; UPD ID= 3483, SNARK:<6.MONITOR>PHYKLP.MAC.101, 20-Jan-84 06:49:24 by GRANT
;Rename routine OPNCIR to OPNSCA and remove its call to KLPOPN.
;In GIVSCA, check for VC state START-RECIEVED. An incoming message will
; open the VC.
;Revise START/STACK/ACK protocol to use SETCKT in correct places.
;Undo previous edit.
; UPD ID= 3474, SNARK:<6.MONITOR>PHYKLP.MAC.100, 17-Jan-84 18:31:04 by HALL
;Make SETCKT and datagrams sent by the driver go on highest-priority queue
; UPD ID= 3464, SNARK:<6.MONITOR>PHYKLP.MAC.99, 16-Jan-84 11:56:23 by GRANT
;In KLPSDG, use table STRLEN to get packet length.
; UPD ID= 3463, SNARK:<6.MONITOR>PHYKLP.MAC.98, 16-Jan-84 11:52:37 by GRANT
;Remove check for VC.OPN in SENDVC.
;Allow for new PPD byte 5 (error packet). Fix STRTDT.
; UPD ID= 3459, SNARK:<6.MONITOR>PHYKLP.MAC.97, 14-Jan-84 16:16:51 by GRANT
;Improve logic after KLPNOR BUGCHK.
;Eliminate STRIDT. Put the code in KLPRID.
;Subroutinize KLPCHK.
;Add IDCVC to RIDSTS.
; UPD ID= 3430, SNARK:<6.MONITOR>PHYKLP.MAC.96, 10-Jan-84 07:59:04 by GRANT
;Fix INTSDT and INTNBF
; UPD ID= 3429, SNARK:<6.MONITOR>PHYKLP.MAC.95, 9-Jan-84 17:41:56 by HALL
;Add to the list of questions
; UPD ID= 3427, SNARK:<6.MONITOR>PHYKLP.MAC.94, 9-Jan-84 11:51:43 by HALL
;KLPRST - Check the op code in the correct AC, don't put packets back on
;free queue with software bits set
; UPD ID= 3416, SNARK:<6.MONITOR>PHYKLP.MAC.93, 6-Jan-84 07:01:19 by GRANT
;Return packet to datagram free queue after KLPPPD BUGCHK.
; UPD ID= 3415, SNARK:<6.MONITOR>PHYKLP.MAC.92, 6-Jan-84 05:58:53 by GRANT
;Add KLPNUP BUGINF
; UPD ID= 3413, SNARK:<6.MONITOR>PHYKLP.MAC.91, 6-Jan-84 05:45:29 by GRANT
;Update KPTAB. Clean up REPORT and fix its callers.
; UPD ID= 3411, SNARK:<6.MONITOR>PHYKLP.MAC.90, 6-Jan-84 05:42:34 by GRANT
;MAPBUF is now a BLSUB.
; UPD ID= 3409, SNARK:<6.MONITOR>PHYKLP.MAC.89, 5-Jan-84 19:05:41 by HALL
;Change KLPCVC and KLPPTH from CHK to INF
;In KLPCHK, see if interlock value is good, and check queue, for each queue
;SETPKT - Check outgoing op code
;GTINTL - Check T1 for interlock word in PCB
;Add FNDKLP
;In PUTQUE and REMQUE, call SANCHK
;In CHKPAK, check physical address in FLINK word against NHIPG
;Zero flags in KLPSDG, etc
;Call TELERR with system block address in P5, not P4
; UPD ID= 3408, SNARK:<6.MONITOR>PHYKLP.MAC.88, 5-Jan-84 13:14:15 by GRANT
;Make INTRD1 identical to INTRD0.
; UPD ID= 3407, SNARK:<6.MONITOR>PHYKLP.MAC.87, 5-Jan-84 13:02:48 by GRANT
;In INTNBF, return packet to message free queue.
; UPD ID= 3399, SNARK:<6.MONITOR>PHYKLP.MAC.86, 3-Jan-84 13:16:03 by GRANT
;More work on software response bits.
; UPD ID= 3393, SNARK:<6.MONITOR>PHYKLP.MAC.85, 30-Dec-83 09:26:00 by HALL
;Rearrange routines
; UPD ID= 3386, SNARK:<6.MONITOR>PHYKLP.MAC.84, 29-Dec-83 16:17:32 by HALL
;Fix KLPBYE's optional data (T3 no longer contained PPD byte, node number is
; more interesting, anyway)
;Move QRETS and QRET to the end of the queue routines
; UPD ID= 3379, SNARK:<6.MONITOR>PHYKLP.MAC.83, 27-Dec-83 16:59:59 by HALL
;A little more work on the state stuff
;In REMQUE, make exit from REMQU4 go through QRET like everything else
;In REMQUE, provide better data at KLPVIR
;In CHKPAK, don't allow reference to the AC's
; UPD ID= 3373, SNARK:<6.MONITOR>PHYKLP.MAC.82, 27-Dec-83 12:54:57 by HALL
;Put all the KLIPA management routines in the back
; UPD ID= 3370, SNARK:<6.MONITOR>PHYKLP.MAC.81, 27-Dec-83 08:11:46 by GRANT
;Put all CALL KLPBUG under conditional.
;Add error code to error return in GETBSD.
;Fix all SAVEACs to use < >.
;Use new software bits in word .PKVRT to indicate response requested.
;SC.DMA returns +1 only.
; UPD ID= 3369, SNARK:<6.MONITOR>PHYKLP.MAC.80, 26-Dec-83 19:58:50 by HALL
;Add KLPQ, which contains address of interlock word that we locked most
; recently
; UPD ID= 3367, SNARK:<6.MONITOR>PHYKLP.MAC.79, 26-Dec-83 10:49:47 by HALL
;Get rid of obsolete data structure for "delayq"
;In SNDREC, return buffer to SCA if SENDVC fails
;Add KLPPRI BUGHLT in SETPKT
;Add BUGCHK KLPVIR at REMQU4
;Save Q3 in REPORT
;Work on list of concerns
; UPD ID= 3366, SNARK:<6.MONITOR>PHYKLP.MAC.78, 24-Dec-83 15:24:54 by HALL
;Start "states of the KLIPA"
; UPD ID= 3365, SNARK:<6.MONITOR>PHYKLP.MAC.77, 24-Dec-83 15:19:39 by HALL
;In PUTQUE, don't allow a buffer address less than 20
;In KLPCHK, get a buffer before trying to send a REQID in it.
; UPD ID= 3364, SNARK:<6.MONITOR>PHYKLP.MAC.76, 24-Dec-83 06:16:41 by GRANT
;Add more optional data to KLPPPD, KLPOPC, and KLPNDE, and make the BUGCHKs.
; UPD ID= 3362, SNARK:<6.MONITOR>PHYKLP.MAC.75, 22-Dec-83 21:16:59 by GRANT
;In LNKDFQ and ULNKDG, sanity check the system block address.
;In PUTQUE, sanity check the packet address.
;Initialize KLPOWN in KLPINI and add KLPOWN check at GTINTL.
;Add KLPPPD BUGHLT when we get a packet with an invalid PPD byte.
;Add KLPOPC BUGHLT when we get a packet with an invalid op-code.
;Add KLPNDE BUGCHK when we get a packet with an invalid node number.
;Add KLPSCA BUGCHK when CALL SC.INT fails.
;LNKDFQ and LNKMFQ are now BLSUB.
; UPD ID= 3353, SNARK:<6.MONITOR>PHYKLP.MAC.74, 20-Dec-83 15:59:56 by HALL
;Record owner of interlock in KLPOWN. Add this to optional data in GTINTL
; UPD ID= 3349, SNARK:<6.MONITOR>PHYKLP.MAC.73, 20-Dec-83 08:16:29 by GRANT
;ULNKDG and ULNKMG are now BLSUB.
; UPD ID= 3343, SNARK:<6.MONITOR>PHYKLP.MAC.72, 19-Dec-83 13:44:32 by GRANT
;In PPDINX, remove stocking of message free queue.
;Add error codes to routines which fail.
;Add node number as optional data to KLPCVC.
;Add PIA check and PCB check in KLPCHK.
;Change optional data in EMPMBQ to be the queue interlock word.
;Remove unexecuted code in REPORT.
;Move CILIN so it is before CALL RMASAG.
; UPD ID= 3339, SNARK:<6.MONITOR>PHYKLP.MAC.71, 19-Dec-83 09:00:59 by GRANT
;Use CION/CIOFF when trying to get a queue interlock.
; UPD ID= 3335, SNARK:<6.MONITOR>PHYKLP.MAC.70, 16-Dec-83 16:50:33 by HALL
;Break TRCKLP into two parts, and add sanity checker
;Create GTINTL to get the interlock, and make PUTQUE and REMQUE call it
; UPD ID= 3331, SNARK:<6.MONITOR>PHYKLP.MAC.69, 16-Dec-83 15:45:58 by HALL
;Use CHNOFF instead of PIOFF
; UPD ID= 3330, SNARK:<6.MONITOR>PHYKLP.MAC.68, 16-Dec-83 10:37:27 by HALL
;Reduce size of KLIPA ring buffer, KLPBUF
;Reorganize queue routines. Add SANCHK
;Add count as optional data to KLPPUT and KLPREM
;PPDSPT - Rick's fix to load mask
;Change calling conventions for SETCKT, so that length isn't passed, and
; priority is passed in T2. This affects KLPSND, KLPRID, CLOSVC, KLPSCK,
; KLPSDG, DIASND, and all callers of DIASND
;Maintain an increasing "transaction ID" and store it in packets that
; require it (KLPRID, KLPSCK, DIASND)
;Create KLPRRG, subroutine for sending OP.RRG; change PPDINX and KLPCHK
; to use it
;Fix up CLOSVC. Change to BLSUB
;Create KLPCLO, and make CLOSVC call it
;Add KLPOPN
;in KLPSCK, set .PKCKT word. Don't do it in KLPINT
;Clean up PPDSRS, KLPSST. Put "default address bit" in correct word
;In PPDSPT and PPDSRS, load Q3 as needed by DIASND. DOn't load it in DIASND.
;Get rid of INTRST
;In SETPKT, don't store .PKLEN word. Store it in SNDDG, SNDMSG, and KLPSDG
; instead
;In SETPKT, don't call MASAGE. Do it in SNDDG and SNDMSG
;Make REQDAT/SNDREC send data directly. Eliminate KLPSDT/KLPRDT
;Change AC usage in REQDAT/SNDREC for buffer address
;Clean up SNDMSG/SNDDG, add SENDVC
;In KLPSND make saving of queue indicator more predictable
;In MASAGE, don't check op code. Caller should do that
;OPNCIR - Call KLPOPN
;CIONLT - don't stuff things in packet that SETPKT will do
;Add PKYLEN to define length part of .PKLEN word
; UPD ID= 3330, SNARK:<6.MONITOR>PHYKLP.MAC.68, 16-Dec-83 10:37:27 by HALL
;Reduce size of KLIPA ring buffer, KLPBUF
; UPD ID= 3313, SNARK:<6.MONITOR>PHYKLP.MAC.67, 14-Dec-83 06:01:27 by GRANT
;More clean up of calls to SC.RBF
; UPD ID= 3312, SNARK:<6.MONITOR>PHYKLP.MAC.66, 14-Dec-83 05:43:53 by GRANT
;Fix calls to SC.RBF, it returns +1 only.
;In CHKOPN, set state of VC to closed.
; UPD ID= 3299, SNARK:<6.MONITOR>PHYKLP.MAC.65, 13-Dec-83 09:10:28 by GRANT
;Make returning port counters work for DIAG% interface (temporary)
; UPD ID= 3291, SNARK:<6.MONITOR>PHYKLP.MAC.64, 11-Dec-83 20:21:14 by GRANT
;Rewrite KLPINT and KLPCHK, implementing the START/STACK/ACK state machine.
;Add debugging ring buffer for PUTQUE and REMQUE.
;Create routine OPENVC.
;Add check for "our node number not known" in LOCPRT.
;Create routine TRCKLP, for tracing the packets on a queue.
;Add labels CILIN and CILOUT for the CILOOK SNOOP% program.
;At REMQU4, initialize the desired words, and release the interlock AFTER
; the FLINK and BLINK are set.
; UPD ID= 3247, SNARK:<6.MONITOR>PHYKLP.MAC.63, 4-Dec-83 11:47:02 by HALL
;In KLPRST, restore FLINKs and BLINKs for free queues before enabling the
; KLIPA
; UPD ID= 3234, SNARK:<6.MONITOR>PHYKLP.MAC.62, 30-Nov-83 15:26:19 by HAUDEL
;Change bit and AC for Start Remote System
;
; UPD ID= 3160, SNARK:<6.MONITOR>PHYKLP.MAC.61, 15-Nov-83 17:18:56 by HALL
;Under KLPDBG there was still a reference to INIT
; UPD ID= 3150, SNARK:<6.MONITOR>PHYKLP.MAC.60, 15-Nov-83 08:05:06 by HALL
;Make KLPI19 put message buffer on correct queue
;Make KLPTMO BUGCHK print out useful data
; UPD ID= 3140, SNARK:<6.MONITOR>PHYKLP.MAC.59, 11-Nov-83 17:19:32 by MCLEAN
;FIX CORE CLOBERER
; UPD ID= 3128, SNARK:<6.MONITOR>PHYKLP.MAC.58, 9-Nov-83 15:06:28 by GRANT
;Eliminate INIT
;Set SF%KLP when PPDINX finishes so KLPCHK will know when to start polling
;Put INICMD and friends under repeat 0, and do the same for the code
; in PPDINX that we're no longer executing
;PPDINX -- zero INIT before sending read register, and REQIDs to each node
; -- don't call SBKINI here. Let KLPINT handle the startup protocol
;Put SBKINI under repeat 0 temporarily. Shouldn't need it any longer
;Make BLDSBK do all the initialization of the system block, copy it
; from SBKINI
;KLPINT -- At KLPIN7, after building the system block, continue and send
; the START
; At KLPI21, send appropriate response rather than calling SBKINx
; At KLPI12, send start rather than calling SBKIN1
;KLPSDG -- Remove the POP P,(P)
; UPD ID= 3126, SNARK:<6.MONITOR>PHYKLP.MAC.57, 9-Nov-83 13:05:36 by HALL
;Fix typo in previous edit
; UPD ID= 3125, SNARK:<6.MONITOR>PHYKLP.MAC.56, 9-Nov-83 12:57:02 by HALL
;In KLPINT, check for OP.RDT rather than OP.DTR
;In KLPINT, check the op code before believing the PPD byte
;In SNDREC, change the LSH to +3, to account for storing 36 bits
; left justified in 32
;In KLPHUN, set up P2 from the UDB
; UPD ID= 3098, SNARK:<6.MONITOR>PHYKLP.MAC.55, 4-Nov-83 11:00:42 by HALL
;Move SCA interface routines so that they're all together
; UPD ID= 3096, SNARK:<6.MONITOR>PHYKLP.MAC.54, 4-Nov-83 10:35:49 by GRANT
;In PPDINX, call SCA instead of using special storage (PACKET and IMSGB).
;Change TIMOUT from 2 seconds to 1.
; UPD ID= 3091, SNARK:<6.MONITOR>PHYKLP.MAC.53, 1-Nov-83 21:21:23 by GRANT
;In PUTQUE and REMQUE, BUGCHK if we time out waiting for the queue interlock
; UPD ID= 3090, SNARK:<6.MONITOR>PHYKLP.MAC.52, 1-Nov-83 21:06:06 by GRANT
;In REPORT, set only the LAR bit in the CSR
; UPD ID= 3089, SNARK:<6.MONITOR>PHYKLP.MAC.51, 31-Oct-83 21:29:21 by GRANT
;At KLPI20, restore PCB before falling through to KLPI20
; UPD ID= 3079, SNARK:<6.MONITOR>PHYKLP.MAC.50, 25-Oct-83 13:11:24 by GRANT
;REDIT problem - Previous edit also did the following:
;Change KLPDSP. Create KLDSP, KLPSIO, KLPCCW, KLPHUN, KLPEXT, KLPCCA, and KLEXT
; UPD ID= 3074, SNARK:<6.MONITOR>PHYKLP.MAC.49, 25-Oct-83 13:05:00 by GRANT
;Move MSCCCW and MSCCCA here from PHYMSC. Reformat listing.
; UPD ID= 3063, SNARK:<6.MONITOR>PHYKLP.MAC.48, 24-Oct-83 15:38:36 by MILLER
;Add XCT word to reset the port
; UPD ID= 3019, SNARK:<6.MONITOR>PHYKLP.MAC.47, 10-Oct-83 14:35:59 by GRANT
;In REPORT, another try at the LAR
; UPD ID= 2965, SNARK:<6.MONITOR>PHYKLP.MAC.46, 2-Oct-83 06:05:10 by GRANT
;In REPORT, set CO.LAR in CSR to read port's LAR
; UPD ID= 2936, SNARK:<6.MONITOR>PHYKLP.MAC.45, 27-Sep-83 09:44:36 by GRANT
;KLPINI (formerly INKLPA) now creates CDB.
;CONI/CONO bits moved to PHYPAR.
;Eliminate KLPSV routine - code moved to skip chain.
;Remove all ##.
; UPD ID= 2786, SNARK:<6.MONITOR>PHYKLP.MAC.44, 3-Aug-83 10:43:19 by MCLEAN
;ADD A FEW BUGCHK'S ETC
; UPD ID= 2632, SNARK:<6.MONITOR>PHYKLP.MAC.43, 23-Jun-83 19:25:04 by CDUNN
;More TCO 6.1127 - Fix RAG to always swap the PPD byte...
;
; UPD ID= 2559, SNARK:<6.MONITOR>PHYKLP.MAC.42, 4-Jun-83 19:48:40 by MILLER
;Add LAR to KLPHNG and KLPSTP
;
; UPD ID= 2554, SNARK:<6.MONITOR>PHYKLP.MAC.41, 3-Jun-83 17:10:49 by CDUNN
;More TCO 6.1127 - Support port insertion of the PPD field by the microcode.
;Also make offline detection return packets
;
; UPD ID= 2509, SNARK:<6.MONITOR>PHYKLP.MAC.38, 24-May-83 14:19:03 by MILLER
;Fix KLPRNV to return to PHYSIO
;
; UPD ID= 2473, SNARK:<6.MONITOR>PHYKLP.MAC.37, 16-May-83 17:40:35 by CDUNN
;More TCO 6.1127 - Random fixes makde by Tony.
;
; UPD ID= 2394, SNARK:<6.MONITOR>PHYKLP.MAC.36, 2-May-83 06:19:37 by WACHS
;More TCO 6.1127 - Fix race calling MASAGE, PPD byte problem on error
;
; UPD ID= 2387, SNARK:<6.MONITOR>PHYKLP.MAC.35, 29-Apr-83 21:34:28 by MILLER
;TCO 6.1610 again. Use "free choice" of path for loopback message
;
; UPD ID= 2367, SNARK:<6.MONITOR>PHYKLP.MAC.34, 27-Apr-83 23:45:50 by CDUNN
;More TCO 6.1127 - Fix KLPINT to correctly return industry compat message
;lengths.
;
; UPD ID= 2344, SNARK:<6.MONITOR>PHYKLP.MAC.33, 26-Apr-83 07:48:46 by WACHS
;More TCO 6.1127 - general fixes
;
; UPD ID= 2331, SNARK:<6.MONITOR>PHYKLP.MAC.32, 22-Apr-83 13:08:24 by MILLER
;Fix bad AC at INKLP8+4
;
; UPD ID= 2330, SNARK:<6.MONITOR>PHYKLP.MAC.31, 22-Apr-83 12:53:27 by MILLER
;Yet more fixes. This time, we got it to work!
;
; UPD ID= 2325, SNARK:<6.MONITOR>PHYKLP.MAC.30, 22-Apr-83 01:40:54 by CDUNN
;More TCO 6.1127 - Add support for returning the packet length to SCA on a
;message or datagram receive.
;
; UPD ID= 2321, SNARK:<6.MONITOR>PHYKLP.MAC.27, 21-Apr-83 16:58:06 by MILLER
;More initialization fixes. Fix handling of DELAYQ
;
; UPD ID= 2317, SNARK:<6.MONITOR>PHYKLP.MAC.26, 20-Apr-83 12:40:31 by MILLER
;Many fixes to initialization code.
;
; UPD ID= 2306, SNARK:<6.MONITOR>PHYKLP.MAC.25, 19-Apr-83 15:29:53 by MILLER
;TCO 6.1610. Use "lopback" message on CIONLT
;
; UPD ID= 2304, SNARK:<6.MONITOR>PHYKLP.MAC.24, 19-Apr-83 07:35:14 by WACHS
;
; UPD ID= 2299, SNARK:<6.MONITOR>PHYKLP.MAC.23, 17-Apr-83 18:48:53 by MILLER
;TCO 6.1610. Add CIONLT
;
; UPD ID= 2279, SNARK:<6.MONITOR>PHYKLP.MAC.22, 15-Apr-83 07:34:38 by HAUDEL
;
; UPD ID= 2277, SNARK:<6.MONITOR>PHYKLP.MAC.21, 14-Apr-83 08:28:22 by HAUDEL
;More TCO 6.1127 - Change PPDINX so that code works on systems without KLIPAs
;
; UPD ID= 2256, SNARK:<6.MONITOR>PHYKLP.MAC.20, 12-Apr-83 23:20:45 by CDUNN
;More TCO 6.1127 - Fix references to DGPOLL under IFE FTMSCP to not be external
;
; UPD ID= 2254, SNARK:<6.MONITOR>PHYKLP.MAC.19, 12-Apr-83 23:01:17 by CDUNN
;More TCO 6.1127 - Fix DGPOLL typo
;More TCO 6.1127 - general fixes
;
; UPD ID= 2209, SNARK:<6.MONITOR>PHYKLP.MAC.17, 8-Apr-83 06:15:33 by WACHS
;TCO 6.1602 - Flag/reload KLIPA when it dies
;More TCO 6.1127 - general fixes
;
; UPD ID= 2090, SNARK:<6.MONITOR>PHYKLP.MAC.14, 28-Mar-83 02:35:59 by CDUNN
;More TCO 6.1127 - Add routine LOCPRT to return local port number
;PSECT such that the monitor can be write protected with debug on.
;
; UPD ID= 2059, SNARK:<6.MONITOR>PHYKLP.MAC.13, 22-Mar-83 08:10:33 by WACHS
;More TCO 6.1127
;
; UPD ID= 2018, SNARK:<6.MONITOR>PHYKLP.MAC.12, 18-Mar-83 03:49:13 by WACHS
;More TCO 6.1127
;TCO 6.1541 - Move DMA stuff to PHYKLP from PHYMSC
;
; UPD ID= 1987, SNARK:<6.MONITOR>PHYKLP.MAC.9, 14-Mar-83 15:31:41 by CDUNN
;More TCO 6.1127 - Change DEBUG to KLPDBG and place it under SYSFLG.MAC
;control.
;
; UPD ID= 1947, SNARK:<6.MONITOR>PHYKLP.MAC.8, 9-Mar-83 12:33:26 by CDUNN
;More TCO 6.1127 - Change debug code to be under conditionals, Also try to
;recover from errors rather than call KLPBUG.
;
; UPD ID= 1942, SNARK:<6.MONITOR>PHYKLP.MAC.7, 8-Mar-83 20:43:54 by CDUNN
;More TCO 6.1127 - Move init of SCA locations in the SB such that it always
;happens regarless of virtual circuit state.
;Also fix init sequence such that three start datagrams are recognized in
;init sequence with another KL.
;
; UPD ID= 1932, SNARK:<6.MONITOR>PHYKLP.MAC.6, 7-Mar-83 21:47:04 by CDUNN
;Change C%BMSG to C%MGSZ to conform to change in SCAPAR
; COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1984, 1988.
; ALL RIGHTS RESERVED.
;
; THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
; ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
; INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
; COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
; OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
; TRANSFERRED.
;
; THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
; AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
; CORPORATION.
;
; DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
; SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
SEARCH PROLOG,SERCOD,PHYPAR,SCAPAR
TTITLE (PHYKLP,,< - Device Dependent Code For CI KLIPA Port >)
Subttl Table of Contents
; Table of Contents for PHYKLP
;
; Section Page
;
;
; 1. Parameters, Symbols, and Storage . . . . . . . . . . . 3
; 2. KLIPA Debugging Code . . . . . . . . . . . . . . . . . 8
; 3. System Startup
; 3.1 KLPUCD (Read Microcode into Memory) . . . . . 9
; 3.2 PPDINX (Initialize SCA) . . . . . . . . . . . 10
; 4. Routines for sending data . . . . . . . . . . . . . . 11
; 5. Routines for manipulating queues . . . . . . . . . . . 29
; 6. Named-Buffer Routines . . . . . . . . . . . . . . . . 46
; 7. Byte Swapping Routines . . . . . . . . . . . . . . . . 51
; 8. PHYSIO Interface
; 8.1 Dispatch Tables . . . . . . . . . . . . . . . 53
; 8.2 KLPINI (Channel Initialization) . . . . . . . 54
; 8.3 KLPSIO (Start I/O) . . . . . . . . . . . . . . 57
; 8.4 KLPINT (Interrupt Service) . . . . . . . . . . 58
; 8.5 Channel Command Word, Hung, Reset . . . . . . 116
; 8.6 KLPCHK (Once-a-second Check) . . . . . . . . . 117
; 8.7 Check Unit Existence . . . . . . . . . . . . . 130
; 9. CI CRAM Parity Error Processing . . . . . . . . . . . 131
; 10. States of the KLIPA
; 10.1 Commentary . . . . . . . . . . . . . . . . . . 150
; 10.2 Dispatch Tables . . . . . . . . . . . . . . . 152
; 10.3 Loading the KLIPA
; 10.3.1 KLPRIP (Load from User) . . . . . . . . 154
; 10.3.2 LODUCD (Load Microcode) . . . . . . . . 155
; 10.3.3 RLDKLP (Load from Monitor) . . . . . . . 157
; 10.3.4 KLPRLC (Reload Complete) . . . . . . . . 158
; 10.4 Stopping the KLIPA
; 10.4.1 STPKLP (Stop KLIPA) . . . . . . . . . . 159
; 10.4.2 DISKLP (Disable KLIPA) . . . . . . . . . 160
; 10.5 Starting the KLIPA
; 10.5.1 STRKLP (Start KLIPA) . . . . . . . . . . 161
; 10.5.2 KIKKLP (Ready KLIPA) . . . . . . . . . . 163
; 10.5.3 ENAKLP (Enable KLIPA) . . . . . . . . . 164
; 10.6 Set CI Port Unavailable . . . . . . . . . . . 165
; 10.7 Miscellaneous . . . . . . . . . . . . . . . . 166
; 11. Utility Routines . . . . . . . . . . . . . . . . . . . 167
SUBTTL Parameters, Symbols, and Storage
;CI OPERATION CODES
OP.SDG==1 ;SEND DATAGRAM
OP.SMS==2 ;SEND MESSAGE
OP.RCF==3 ;CONFIRM RECEIVED
OP.MCR==4 ;MAINTENANCE CONFIRM RECEIVED
OP.RID==5 ;REQUEST ID
OP.RRS==6 ;RESET REMOTE SYSTEM
OP.SRS==7 ;START REMOTE SYSTEM
OP.RD0==10 ;REQUEST DATA ON QUEUE 0
OP.RD1==11 ;REQUEST DATA 1
OP.RD2==12 ;REQUEST DATA 2
OP.IDR==13 ;ID RECEIVED
OP.LPB==15 ;SEND/RECEIVE LOOPBACK
OP.RMD==16 ;REQUEST MAINTENANCE DATA
OP.SDT==20 ;SEND DATA
OP.RDT==21 ;RETURN DATA (DATREC)
OP.SMD==22 ;SEND MAINTENANCE DATA
OP.MDR==23 ;MAINTENANCE DATA RECEVIED
OP.CKT==200 ;SET VIRTUAL CIRCUIT
OP.SPT==201 ;SET STATISTICS COUNTER
OP.RCT==202 ;READ STATISTICS COUNTER
OP.RRG==203 ;READ REGISTER
OP.WRG==204 ;WRITE REGISTER
OP.CLB==205 ;CLOSE BUFFER
OP.RMT==40 ;ON IN REMOTELY GENERATED RESPONSES
.DOLRA==1B0 ;BIT ON IN DATAO TO LOAD RAM ADDRESS REGISTER
MICVSZ==^D10 ;MICROCODE VERSION FIELD SIZE
MICVPS==^D29 ;MICROCODE VERSION FIELD POSITION
MICVER==137 ;MICROSTORE VERSION NUMBER LOC
NONVER==1777 ;-1 IN THE VERSION WORD
MAXNOR==77 ;NUMBER OF TIME OUTS BEFORE WE DECLARE THE OTHER PORT SICK
TIMOUT==^D1000 ;VALUE OF INTERLOCK WORD AT WHICH WE DECLARE THE KLIPA DEAD
TIM==020 ;[7.1202] Timer device for DATAI
OPDEF RDTIME [DATAI TIM,] ;[7.1202] Instruction for reading timer
;Global byte pointers
PKYSTS::POINT PKSSTS,.PKSTS(Q2),PKPSTS ;Status
PKYFLG::POINT PKSFLG,.PKSTS(Q2),PKPFLG ;Flags
PKYOP:: POINT PKSOP,.PKSTS(Q2),PKPOP ;OP code
PKYNOD::POINT PKSNOD,.PKSTS(Q2),PKPNOD ;Node to send to
;The following are specialized for certain op codes
PKYREG::POINT PKSREG,.PKREG(Q2),PKPREG ;Register to read
PKYDTA::POINT PKSDTA,.PKREG(Q2),PKPDTA ;Data from register read
PKYCND::POINT PKSCND,.PKPND(Q2),PKPCND ;Node to point performance counter at
PKYFWD::POINT 32,(Q2),31 ;Pointer for full word
PKYLHF::POINT 16,(Q2),15 ;Left half
PKYRHF::POINT 16,(Q2),31 ;Right half
PKYPPD::POINT PKSPPD,.PKLEN(Q2),PKPPPD ;CI.PPD
PKYPPM::POINT 8,.PKLEN(Q2),7 ;Most sig byte of PPD field in 10 format
PKYPPL::POINT 8,.PKLEN(Q2),15 ;Least sig byte of PPD field in 10 fmt
PKYLEN::POINT 20,.PKLEN(Q2),35 ;Length for datagrams and messages
; Do not change the order of the next 4 pointers
PBYTE1: POINT 8,T1,7
PBYTE3: POINT 8,T1,23 ;USED IN REVERSING BYTES IN A WORD
PBYTE2: POINT 8,T1,15
PBYTE4: POINT 8,T1,31
RS BRKCNT,1 ;NUMBER OF TIMES WE BROKE INTERLOCK
RS MSCDAT,1 ;DATA RETURNED DURING INIT
RS KLPDIS,1 ;FLAG TO SAY IF WE SHOULD RESTART AFTER PARITY ERROR
RS KLPFAI,1 ;KLIPA FAILED FLAG: 0 = LAST START ATTEMPT WORKED
RS KLPRDY,1 ;KLIPA READY FLAG: 0 = NOT READY FOR USE
RS CIHERE,1 ;[7134] CI IN USE
SSTTMD==^D3000 ;DEFAULT START SEQUENCE TIME OUT VALUE
RSI SSTTMO,SSTTMD ;START SEQUENCE TIME OUT VALUE
RS RIDNXT,1 ;NEXT NODE FOR POLLER'S REQEUST ID
RS RIDTIM,MAXNDS+1 ;REQUEST ID TIMER
RIDTMD==^D2000 ;DEFAULT REQUEST ID TIME OUT VALUE
RSI RIDTMO,RIDTMD ;REQUEST ID TIME OUT VALUE
RS UCDTIM,1 ;TIME FOR TRACKING UCODE RELOAD/DUMP
NDSTIM==^D10000 ;TIMEOUT VALUE FOR NEEDS-RELOADING/DUMPING
IPRTIM==^D5000 ;TIMEOUT VALUE FOR RELOAD/DUMP-IN-PROGRESS
RSI NDSTTM,NDSTIM ;PATCHABLE LOCATION TO HOLD TIMEOUT VALUE
RS RCTTIM,1 ;NEXT TIME TO DO PERIODIC READ-COUNTERS
RCTTMO==^D3600000 ;PERIODIC READ-COUNTERS INTERVAL
RSI RCTPER,RCTTMO ;HOLDER OF INTERVAL VALUE
RS WIRNXT ;NEXT WIRE TO SEND LOOPBACK ON (0=A, -1=B)
RS CIWIRA ;CI WIRE A STATUS: 0=GOOD, -1=BAD
RS CIWIRB ;CI WIRE B STATUS: 0=GOOD, -1=BAD
RS BSDLOC,1 ;POINTER TO LINKED LIST OF BSDS
RS BHDIPT,1 ;INITIAL POINTER TO BUFFER DESCRIPTOR TABLE
RS BHDCPT,1 ;CURRENT POINTER TO BUFFER DESCRIPTOR TABLE
RS OFFSET,1 ;VIRTUAL TO PHYSICAL OFFSET OF INITIAL PACKETS
RS TIMKLP,1 ;TIME OF LAST KLIPA ERROR
RS CHNCUN,1 ;USED FOR SCANNING FOR QUEUED REQUESTS
RS CHNIUN,1 ;DITTO
RS CRFNUM,1 ;COMMAND REFERENCE NUMBER
RS BDTTAB,BHDNUM*L.BHD+3 ;BUFFER HEADER SESCRIPTORS
RS BSDTAB,BHDNUM*2*L.BSD+3 ;BUFFER SEGMENT DESCRIPTORS
RS QORTAB,BHDNUM*<QORLEN*2> ;SPACE FOR QUEUES OF OUTSTANDING REQUESTS
RS PCB,L.PCB ;PORT CONTROL BLOCK
RS KLPXID,1 ;TRANSACTION ID
RSI KLPOWN,777777 ;OWNER OF THE INTERLOCK (777777 WHEN WE DON'T
;HAVE IT, -1 FOR INTERRUPT LEVEL, 0 FOR PROCESS
;CONTEXT, 1 FOR SCHEDULER CONTEXT)
RS KLPQ,1 ;ADDRESS OF INTERLOCK WORD THAT WE GOT LAST
RS LSTCNI,1 ;RESULT OF LAST CONI DONE IN KLPCHK
RS WIRCNT,1 ;[7210] COUNT OF WIRE TRANSITIONS
RS WIRTIM,1 ;[7210] TODCLK WHEN CURRENT COUNT OF 10 TRANSITIONS STARTED
RS KLPENT,2 ;[7.1202] Time when we entered interrupt service
RSI (TOTKLP,<0,0>) ;[7.1202] Total time spent in PHYKLP at interrupt level
;Define CRC codes for loopback packet
LPBLEN==6 ;LENGTH OF PACKET
LPBCRC: 365137,,27260 ;Port 0
461317,,343360 ;Port 1
777542,,171600 ;Port 2
73762,,215700 ;Port 3
142070,,514540 ;Port 4
646250,,670440 ;Port 5
550405,,442120 ;Port 6
254625,,726020 ;Port 7
731224,,250400 ;Port 8
35004,,134500 ;Port 9
323651,,306060 ;Port 10
427471,,62160 ;Port 11
516363,,763320 ;Port 12
212143,,407220 ;Port 13
104716,,635740 ;Port 14
600536,,551640 ;Port 15
RS RIDSTS,MAXNDS+1 ;REQUEST-ID STATUS
MSKSTR IDSNT,RIDSTS,1B0 ;LAST ID SENT: 0 = PATH A, 1 = PATH B
; MSKSTR IDPAO,RIDSTS,1B1 ;PATH A OPEN: 0 = CLOSED, 1 = OPEN
; MSKSTR IDPBO,RIDSTS,1B2 ;PATH B OPEN: 0 = CLOSED, 1 = OPEN
MSKSTR IDNRA,RIDSTS,1B3 ;NO-RESPONSE ON PATH A: 1 = NO RESPONSE
MSKSTR IDNRB,RIDSTS,1B4 ;NO-RESPONSE ON PATH B: 1 = NO RESPONSE
MSKSTR IDTRY,RIDSTS,1B5 ;LAST TRY STATUS: 0 = 1ST, 1 = 2ND
MSKSTR IDWFR,RIDSTS,1B6 ;WAITING FOR RESPONSE (FROM OUR PORT) TO REQUEST-ID
MSKSTR IDRST,RIDSTS,1B8 ;RESET REMOTE COMMAND HAS BEEN SENT
MSKSTR IDSTA,RIDSTS,1B9 ;START REMOTE COMMAND TO BE SENT
MSKSTR IDMAI,RIDSTS,1B10 ;REMOTE PORT IS IN MAINTENANCE MODE
MSKSTR IDNOR,RIDSTS,77B17 ;COUNT OF CONSECUTIVE NO-RESPONSES WHEN WE KNOW THE OTHER ; PORT IS RECEIVING OUR REQUEST-IDS
MSKSTR IDSAD,RIDSTS,177777B35 ;STARTING ADDRESS FOR REMOTE NODE
DEFSTR (DTLAR,,12,12) ;THE LAR
DEFSTR (DTCRM,,35,30) ;THE CONTENTS OF THE CRAM
RSI KSOFF,2 ;OFFSET IN SPEAR ENTRY 241 FOR DATA
RS VER241,1 ;USED WHILE MAKING ERROR.SYS ENTRY 241
MSKSTR KSRSN,VER241,KS%RSN ;REASON FIELD
MSKSTR KSCHN,VER241,KS%CHN ;KLIPA CHANNEL
MSKSTR KSVSN,VER241,KS%VSN ;UCODE VERSION
RS SRC246,1 ;USED WHILE MAKING ERROR.SYS ENTRY 246
MSKSTR KECHN,SRC246,KE%CHN ;KLIPA CHANNEL #
MSKSTR KENOD,SRC246,KE%NOD ;HSC NODE #
RS UCDADR,1 ;ADDRESS OF UCODE
RS UCDVER,1 ;UCODE VERSION
MSKSTR UCMAJ,UCDVER,777B11 ;[7.1134] Major version
MSKSTR UCMIN,UCDVER,77B17 ;[7.1134] Minor version
MSKSTR UCEDT,UCDVER,777777B35 ;EDIT NUMBER
SUBTTL KLIPA Debugging Code
IFN KLPDBG,< ;[7.1134] Move here from various places
RESCD
COLECT::MOVEM T1,@PNTR
CAIA
COLEC1::RET
AOS T1,PNTR
CAILE T1,DATEND
MOVEI T1,DATA
MOVEM T1,PNTR
RET
KLPBUG: RET ;debug breakpoint goes here
RSI (PNTR,<DATA>,1) ;ring buffer pointer
RS (DATA,137) ;ring buffer
RS (DATEND) ;ring buffer end pointer, must be first word
; after ring buffer
RS RACES,1 ;****counter for Sean ******
> ;[7.1134] End of IFN KLPDBG
SUBTTL System Startup -- KLPUCD (Read Microcode into Memory)
;GET CI UCODE INTO MONITOR RESIDENT MEMORY
; CALL KLPUCD ;()
; RETURN +1 FAILED - T1/ ERROR CODE
; +2 SUCCESS
RESCD
KLPUCD::SKIPN CIHERE ;[7444] Are we using the CI?
RETBAD (KLPX7) ;NO, NO KLIPA
STKVAR <FJFN,NWORD,TMPAD,ERCOD>
MOVX T1,GJ%OLD!GJ%SHT ;FILE MUST EXIST
HRROI T2,[ASCIZ/BS:[SYSTEM]IPALOD.EXE/] ;[7.1112]
GTJFN%
RETBAD (GJFX18)
MOVEM T1,FJFN ;PRESERVE JFN
MOVE T2,[^D36B5!OF%RD] ;NEED TO READ 36-BIT BYTES
OPENF%
RETBAD ()
MOVEI T3,1146 ;GET NUMBER OF UCODE WORDS
RIN%
ERJMPR
MOVEM T2,NWORD ;STASH IT
ADDI T2,4 ;NEED STOPPER AND VERSION WORDS, TOO
IDIVI T2,1000 ;CONVERT TO PAGES
AOS T2 ; ROUNDED UP
IMULI T2,1000 ;GO BACK TO WORDS
BLCAL. (ASGVAS,<[1B1],T2>) ;(FLAGS,PAGES/T1) GET PAGES
RETBAD ()
MOVEM T1,TMPAD ;STASH BUFFER ADDRESS
MOVE T1,FJFN ;RETRIEVE JFN
MOVEI T2,2000 ;UCODE STARTS ON PAGE 2
SFPTR%
RETBAD ()
MOVE T4,TMPAD ;RETRIEVE BUFFER ADDRESS
MOVE T2,[POINT 36,(T4)] ;DESTINATION
MOVE T3,NWORD ;RETRIEVE NUMBER OF UCODE WORDS
ADDI T3,4 ;GET STOPPER AND VERSION WORDS, TOO
MOVNS T3 ;SET BYTE COUNT
SIN% ;READ IN UCODE
ERJMPR
MOVE T2,TMPAD ;GET BACK UCODE ADDRESS
MOVEM T2,UCDADR ;SET IT FOR GOOD
CLOSF% ;ALL DONE
RETBAD ()
RETSKP
ENDSV.
SUBTTL System Startup -- PPDINX (Initialize SCA)
;PPDINX - CALLED FROM MEXEC AFTER SWAPPABLE MONITOR IS LOADED
;RETURNS: +1
;NOTE: When this routine is called, KLPINI has already been called;
; the CDB and PCB are set up for the KLIPA.
PPDINX::SAVEAC <P1>
SKIPN P1,CHNTAB+KLPRH2 ;GET CDB
RET ;NONE
MOVE T1,CDBSTS(P1) ;GET STAATUS
TXNN T1,CS.CIP ;IS IT A KLIPA?
RET ;NO. DON'T BOTHER WITH THE REST
CALL SCA ;(/) INITIALIZE SCA
CALL STKDFQ ;(P1/) STOCK THE DATAGRAM FREE QUEUE
MOVEI T1,CHNNRL ;PORT NEEDS
STOR T1,CFSTA,(P1) ; RELOADING
MOVE T1,TODCLK ;GET NOW
ADD T1,NDSTTM ;GET TIMEOUT TIME
MOVEM T1,UCDTIM ;SET IT
RET
SUBTTL Routines for sending data
;SNDDG/SNDMSG - Send datagram or message via virtual circuit control
;Length is words if high density, bytes if industry compatible
SNDDG:: BLSUB. (<SS.LEN,SS.FLG,SS.SBA,SS.PKA,SS.PRI>)
SAVEPQ
MOVEI P4,OP.SDG ;OPCODE
JRST SENDPK
SNDMSG::BLSUB. (<SS.LEN,SS.FLG,SS.SBA,SS.PKA,SS.PRI>)
SAVEPQ
MOVEI P4,OP.SMS ;OPCODE
;..
SENDPK:
MOVE T4,SS.LEN ;GET PACKET LENGTH
MOVE Q3,SS.FLG ;GET FLAGS
TXNE Q3,F.SPM ;Is this high density, I.E. a word length???
IFNSK.
MOVEI Q1,1(T4) ;Yes, get copy, rounded up for later div by 2
IMULI T4,4 ;Account for whole byte count
IDIVI Q1,2 ;Now get the number of extra bytes left over
ADD T4,Q1 ;Add fractional part to whole to get byte total
ENDIF.
MOVE Q2,SS.PKA ;GET ADDRESS OF PACKET
DPB T4,PKYLEN ;STORE LENGTH IN PACKET
MOVEI T4,PP.DG-OP.SDG(P4) ;COMPUTE PPD BYTE
DPB T4,PKYPPD ;SAVE IT IN THE PACKET
CALL MASAGE
SETZ T3,
TXNE Q3,F.RTB ;WANT A RESPONSE?
MOVX T3,PF.RSP ;YES, GET PACKET RESPONSE BIT
TXNE Q3,F.SPM ;WANT HIGH DENSITY MODE?
TXO T3,PF.FMT
MOVE T2,SS.PRI ;GET PRIORITY
MOVE T1,P4 ;OP CODE
MOVE P5,SS.SBA ;GET ADDRESS OF SYSTEM BLOCK
CALL SENDVC ;(T1,T2,T3,P5,Q2)SEND UNDER V.C. CONTROL
RETBAD ()
RETSKP
ENDBS.
;SNDDAT/REQDAT - SEND AND RECEIVE DATA
SNDDAT::BLSUB. (<SS.SNM,SS.RNM,SS.SOF,SS.ROF,SS.CID>)
MOVEI T1,OP.SDT ;OP CODE FOR SEND DATA
JRST SNDREC
REQDAT::BLSUB. (<SS.SNM,SS.RNM,SS.SOF,SS.ROF,SS.CID>)
MOVEI T1,OP.RD1 ;OP CODE FOR READ DATA
; * * * *
;Do we need to shift some of these values left?
;Need to handle failure case by returning buffer to SCA.
; * * * *
SNDREC: SAVEPQ
MOVE Q2,T1 ;SAVE OP CODE
MOVEI T1,1
CALL SC.ABF ;GET A BUFFER FROM SCA
RETBAD ( ) ;NONE. LOSE
EXCH T1,Q2 ;BUFFER ADDR IN Q2, OP CODE IN T1
MOVE T2,SS.SNM ;SENDER NAME
MOVE T3,T2 ;IF DOING A SEND, THIS IS OUR BUFFER NAME
MOVEM T2,.PKSNM(Q2) ;SAVE WHERE PORT WANTS SENDER NAME
MOVE T2,SS.RNM ;REC'R NAME
CAIN T1,OP.RD1 ;ARE WE READING?
MOVE T3,T2 ;YES. THIS IS OUR BUFFER NAME
MOVEM T2,.PKRNM(Q2) ;WHERE PORT WANTS REC'R NAME
MOVE T2,SS.SOF ;SENDER OFFSET
MOVEM T2,.PKSOF(Q2) ;INTO PACKET
MOVE T2,SS.ROF ;RECEIVER OFFSET
MOVEM T2,.PKROF(Q2) ;INTO PACKET
MOVEM T3,.PKXID(Q2) ;SENDER OR RECEIVER BUFFER NAME INTO XID
MOVE T2,SS.CID ;CID INTO OTHER XID
MOVEM T2,.PKXID+1(Q2) ;SO WE CAN TELL SCA ON THE INTERRUPT
$LDCID T2,T2 ;GET CONNECTION BLOCK ADDRESS
MOVE P5,.CBSBA(T2) ;SYSTEM BLOCK (KDB)
LDB T2,[POINT BHSIDX,T3,BHPIDX] ;BHD INDEX FROM BUFFER NAME
ADD T2,BHDIPT ;POINT AT BHD TABLE ENTRY
MOVE T2,.BHLEN(T2) ;GET NIBBLE COUNT FROM BHD
LSH T2,-1+4 ;CONVERT TO BYTE COUNT AND THEN SHIFT IT
MOVEM T2,.PKXLN(Q2) ;SAVE AS TRANSACTION LENGTH
MOVEI T2,KLPMED ;PRIORITY
MOVX T3,PF.SIZ ;INDICATE 576-BYTE PACKETS
CALL SENDVC ;(T1,T2,T3,P5,Q2) SEND IT VIA VIRTUAL CIRCUIT CONTROL
JRST [ EXCH T1,Q2 ;FAILED. RETURN BUFFER TO SCA
CALL SC.RBF
MOVE T1,Q2 ;RESTORE ERROR CODE
RETBAD ()]
RETSKP
ENDBS.
;SNDMAI/REQMAI - SEND AND RECEIVE MAINTENANCE DATA
; RETURNS +1 ERROR
; +2 OKAY
; SS.SNM - SENDING BUFFER NAME
; SS.RNM - RECEIVING BUFFER NAME
; SS.SOF - SENDING BUFFER OFFSET
; SS.ROF - RECEIVING BUFFER OFFSET
; NODCHN - CHANNEL AND NODE NUMBER
;SEND MAINTENANCE DATA
SNDMAI::BLSUB. (<SS.SNM,SS.RNM,SS.SOF,SS.ROF,NODCHN>)
MOVEI T1,OP.SMD ;OP CODE FOR SEND MAINT. DATA
JRST SNDMA1
;REQUEST(RECEIVE) MAINTENANCE DATA
REQMAI::BLSUB. (<SS.SNM,SS.RNM,SS.SOF,SS.ROF,NODCHN>)
MOVEI T1,OP.RMD ;OP CODE FOR READ MAINT. DATA
SNDMA1: SAVEPQ
MOVE Q3,T1 ;SAVE OP CODE
HLRZ P1,NODCHN ;GET THE CHANNEL NUMBER
MOVE P1,CHNTAB(P1) ;GET THE CHANNEL ADDRESS
MOVEI T1,1
CALL PPDGDB ;(P1/T1) GET A BUFFER
RETBAD ( ) ;NONE. LOSE
EXCH T1,Q3 ;BUFFER ADDR IN Q2, OP CODE IN T1
MOVE T2,SS.SNM ;SENDER NAME
MOVE T3,T2 ;IF DOING A SEND, THIS IS OUR BUFFER NAME
MOVEM T2,.PKSNM(Q2) ;SAVE WHERE PORT WANTS SENDER NAME
MOVE T2,SS.RNM ;REC'R NAME
CAIN T1,OP.RMD ;ARE WE READING?
MOVE T3,T2 ;YES. THIS IS OUR BUFFER NAME
MOVEM T2,.PKRNM(Q2) ;WHERE PORT WANTS REC'R NAME
MOVE T2,SS.SOF ;SENDER OFFSET
MOVEM T2,.PKSOF(Q2) ;INTO PACKET
MOVE T2,SS.ROF ;RECEIVER OFFSET
MOVEM T2,.PKROF(Q2) ;INTO PACKET
MOVEM T3,.PKXID(Q2) ;SENDER OR RECEIVER BUFFER NAME INTO XID
LDB T2,[POINT BHSIDX,T3,BHPIDX] ;BHD INDEX FROM BUFFER NAME
ADD T2,BHDIPT ;POINT AT BHD TABLE ENTRY
MOVE T2,.BHLEN(T2) ;GET NIBBLE COUNT FROM BHD
LSH T2,-1+4 ;CONVERT TO BYTE COUNT AND THEN SHIFT IT
MOVEM T2,.PKXLN(Q2) ;SAVE AS TRANSACTION LENGTH
SETZM T3
HRRZ Q1,NODCHN ;GET THE NODE NUMBER
MOVE Q3,CDBPCB(P1) ;GET THE PCB ADDRESS
CALL DIASND ;(T1,T3,Q1,Q2,Q3/) SEND THE DATAGRAM
RETSKP
ENDBS.
;CLOSE A BUFFER - THIS ROUTINE ISSUES A CLSBUF COMMAND (205)
;BLCAL. (CLOBUF,<BUFNAM,BUFADR,PCBADR>)
; BUFNAM - BUFFER NAME
; BUFADR - COMMAND BUFFER ADDRESS
; PCBADR - PCB ADDRESS
; RETURNS +2: ALWAYS
CLOBUF::BLSUB. (<BUFNAM,BUFADR,PCBADR>)
SAVEQ
MOVE T1,BUFNAM ;GET THE BUFFER NAME
MOVE Q2,BUFADR ;GET COMMAND PACKET ADDRESS
MOVE Q3,PCBADR ;GET THE PCB ADDRESS
MOVEM T1,.PKBNM(Q2) ;STORE IT IN COMMAND PACKET
MOVEI T1,OP.CLB ;GET COMMAND
MOVEI T2,KLPMED ;GET PRIORITY
SETZM Q1 ;CLEAR NODE NUMBER
MOVX T3,PF.RSP ;RESPONSE IS REQUESTED.
CALLRET DRVSND ;(T1,T2,T3,Q1,Q2,Q3/)
ENDBS.
;SENDVC - SEND PACKET UNDER VIRTUAL CIRCUIT CONTROL
;ACCEPTS:
; T1/ OP CODE
; T2/ PRIORITY
; T3/ FLAGS
; Q2/ ADDRESS OF PACKET
; P5/ ADDRESS OF SYSTEM BLOCK
; CALL SENDVC
;RETURNS +1: FAILURE
; +2: SUCCESS
SENDVC: LOAD T4,SBVCST,(P5) ;GET VC STATE
CAIE T4,VC.OPN ;IS IT OPEN?
RETBAD (KLPX9) ;NO
MOVE Q3,.SBAPB(P5) ;POINT Q3 AT PCB
LOAD Q1,SBDPA,(P5) ;Q1 = DESTINATION PORT(NODE) NUMBER
SETZRO PKSRB,(Q2) ;ASSUME NO RESPONSE BITS DESIRED
TXNN T3,PF.RSP ;WANT A RESPONSE?
IFSKP.
SETONE PKSCA,(Q2) ;YES, SET THE SCA SOFTWARE RESPONSE BIT
ENDIF.
CALL KLPSND ;(T1,T2,T3,Q1,Q2,Q3) SEND THE PACKET
RETBAD ()
RETSKP
COMMENT #
The routine CLOSVC closes an open virtual circuit; it is called from
within PHYKLP and externally from SCAMPI. Examples are: 1) PHYKLP calls it
when it discovers the CI20 has stopped due to a CRAM parity error, 2) a packet
whose delivery is guaranteed has encountered an error, 3) SCAMPI calls CLOSVC
when an idle chatter response has timed out. There are other reasons for
calling CLOSVC but the idea is always the same. CLOSVC always calls SC.ERR to
tell SCAMPI the state of the virtual circuit has been set to closed and further
calls to SENDVC will fail. If CLOSVC can't get a datagram buffer for the Set
Circuit (to close) command, it sets SBNTC (need to close) and the once-a-second
routine CHKOPC will attempt to do it. When either CLOSVC or CHKOPC actually do
the Set Circuit, they set SBWFI indicating we are waiting for a new (after
closing the virtual circuit) IDREC. WARNING: SBNTC must be cleared in NONODS.
The routine OPENVC requests steps be intiated to attempt to open a
closed virtual circuit. OPENVC always sets SBOKO (OK to open). Once a
virtual circuit has been established with a node and subsequently closed,
PHYKLP only begins trying to open the virtual circuit again at the direction
of SCAMPI. The only time PHYKLP initiates the opening procedure is upon
getting an IDREC from a node with which we have never had an open virtual
circuit. OPENVC always sets SBOKO; this tells routine INTIDR to send a Start
once the close has completed and we have received a fresh IDREC. OPENVC will
try to send a Request-Id if the close has been accomplished. Sending a
Request-Id from OPENVC is an attempt to get a new IDREC as soon as possible.
The routine INTIDR processes IDRECs, the responses to Request-Ids.
If a virtual circuit's state is closed, this routine will send a Start if
1) the Set Circuit (to close) has been done, and 2) SBOKO (it's OK to open)
has been set by OPENVC. WARNING: Don't clear SBOKO until SC.ONL is called.
#
;OPEN VIRTUAL CIRCUIT
;RETURNS: +1
OPENVC::BLSUB. (<SBA>)
SAVEPQ
MOVE P5,SBA ;GET SB
SKIPN P5 ;IS IT POSSIBLE?
BUG.(HLT,KLPNSB,PHYKLP,SOFT,<PHYKLP - No system block at OPENVC>,,<
Cause: OPENVC was called with a system block address of 0.
>)
MOVE Q3,.SBAPB(P5) ;GET PCB
LOAD Q1,SBDPA,(P5) ;GET NODE NUMBER
LOAD T1,SBVCST,(P5) ;GET VC STATE
CAIE T1,VC.CLO ;CLOSED?
BUG.(HLT,KLPONC,PHYKLP,SOFT,<PHYKLP - Trying to open a VC which isn't closed>,,<
Cause: OPENVC was called when the VC was not closed.
>)
SETONE SBOKO,(P5) ;SAY IT'S OK TO OPEN
MOVE T1,CHNTAB+KLPRH2 ;GET CDB
LOAD T1,CFSTA,(T1) ;GET STATE OF PORT
CAIE T1,CHNRUN ;IS IT RUNNING?
RET ;NO
TMNN SBNTC,(P5) ;STILL TRYING TO CLOSE?
CALL KLPGDB ;(Q3/Q2) NO, GET A DATAGRAM BUFFER
RET ;THAT'S IT FOR NOW. ONCE-A-SECOND WILL DO IT
;Sending a REQUEST-ID here may speed up the reopening since the once-a-second
;poller may not get to this node for a while.
SKIPE RIDTIM(Q1) ;ALREADY HAVE A REQUEST-ID ON OUT THERE?
RET ;YES
CALL GTNPTH ;(Q1/T3) GET PATH FOR REQUEST-ID
CALL KLPRID ;(T3,Q1,Q2,Q3/) SEND REQUEST-ID
NOP ;NO SUCH RETURN
RET
ENDBS.
;CLOSE VIRTUAL CIRCUIT
;RETURNS: +1
;
;NOTE: CLOSVC is called by SCAMPI, CLOSV1 by PHYKLP.
CLOSVC::BLSUB. (<SS.SBA>)
SAVEPQ
SETZB Q2,P4 ;NEED TO GET A BUFFER AND DO SET CIRCUIT
MOVE P5,SS.SBA ;GET SYSTEM BLOCK
TDZA T2,T2 ;FLAG THAT WE WANT TO SEND A SHUTDOWN
;LOCAL ENTRY POINT
;ACCEPTS: Q2/ ADDRESS OF BUFFER TO BE USED FOR KLPCLO
; 0 = NEED A BUFFER
; P4/ 0 = DO THE SET CIRCUIT
; -1 = DON'T NEED TO DO SET CIRCUIT
; P5/ SB
CLOSV1: SETOM T2 ;NO SHUTDOWN REQUIRED
STKVAR <BUFADR>
MOVEM Q2,BUFADR
;At this point, T2/0 if SCA initiated the closing. In that case, we'll
;send a shutdown to the other side. Otherwise, T2/-1, and the other
;side probably already knows about the failure.
CIOFF ;DON'T LET INT LEVEL EVENTS CHANGE STATE OF VC
LOAD T1,SBVCST,(P5) ;GET VC STATE
CAIE T1,VC.OPN ;OPEN?
JRST CLOSVX ;NO, DONE
MOVEI T1,VC.CLO ;GET CLOSED CODE
STOR T1,SBVCST,(P5) ;SET IT
LOAD Q1,SBDPA,(P5) ;GET NODE NUMBER
;Try to send a shutdown if SCA asked for the closing. If there's no buffer,
;we can continue, and the other side will find out when it gets a START
;sometime later.
MOVE Q3,.SBAPB(P5) ;GET PCB
SKIPE T2 ;WANT TO SEND A SHUTDOWN?
IFSKP.
CALL KLPGDB ;(Q3/Q2) GET A BUFFER IF WE CAN
JRST CLOSV5 ;NO BUFFER. NOT A DISASTER
MOVEI T1,PP.SHT ;GET PPD BYTE FOR SHUTDOWN
DPB T1,PKYPPD ; AND STORE IT IN THE PACKET
CALL KLPSDG ;(Q1,Q2,Q3/) SEND IT
NOP
ENDIF.
CLOSV5: SKIPE P4 ;DO THE SET CIRCUIT?
JRST CLOSV3 ;NO
;...
;...
SKIPE Q2,BUFADR ;HAVE A BUFFER FOR THE SET CIRCUIT?
JRST CLOSV2 ;YES. GO SEND IT
CALL KLPGDB ;(Q3/Q2) GET A DATAGRAM BUFFER
IFNSK.
SETONE SBNTC,(P5) ;FAILED, SAY WE STILL NEED TO CLOSE VC
JRST CLOSV4 ;TELL SCA WE'RE CLOSED
ENDIF.
CLOSV2: CALL KLPCLO ;(Q1,Q2,Q3) SEND THE PACKET
NOP ;NO SUCH RETURN
CLOSV3: SETONE SBWFI,(P5) ;WAITING FOR A FRESH IDREC
CLOSV4: SKIPE CLDWRD ;[7.1021] Has a cluster-dump been requested?
IFSKP. ;[7.1021] No, just BUGINF
BUG.(INF,KLPCVC,PHYKLP,SOFT,<PHYKLP - Closed virtual circuit>,<<Q1,NODE>>,<
Cause: TOPS-20 has closed a virtual circuit to a remote node on the CI.
Action: No action is required, this bug is for information only.
Data: NODE - CI node number
>,,<DB%NND>) ;[7.1210][7.1021]
ELSE. ;[7.1021] Yes, so BUGHLT instead!
BUG.(HLT,KLPDMP,PHYKLP,SOFT,<PHYKLP - Cluster dump requested>,<<Q1,NODE>>,<
Cause: TOPS-20 has closed a virtual circuit to a remote node on the CI. But,
previous to this, this node's cluster dump listener received a
connection indicating that a cluster dump was in progress. So, the
node is crashing upon receipt of the node offline indication. The node
which requested the cluster dump should have crashed with a CFCLDP
BUGHLT.
Action: No action is required. A cluster dump has been requested by another
node in the CFS cluster.
Data: NODE - CI node number to which we lost our VC
>) ;[7.1021]
ENDIF. ;[7.1021]
BLCAL. (SC.ERR,<Q1>) ;TELL SCA
NOP ;WE DID OUR BEST
CLOSVX: CION
RET
ENDSV.
ENDBS.
;ROUTINE TO SEND A REQUEST ID
;ACCEPTS: T3/ FLAGS
; Q1/ NODE NUMBER
; Q2/ ADDRESS OF PACKET
; Q3/ PCB ADDRESS
; CALL KLPRID
;RETURNS +1: FAILURE
; +2: SUCCESS
KLPRID: MOVE T1,TODCLK ;GET CURRENT TIME
ADD T1,RIDTMO ;CALC TIME OUT TIME
MOVEM T1,RIDTIM(Q1) ;SET TIME OUT TIME
MOVEI T1,20
ADDB T1,KLPXID ;GET NEW TRANSACTION ID
MOVEM T1,.PKXID(Q2) ;SAVE FIRST WORD
MOVEM T1,.PKXID+1(Q2) ; AND SECOND WORD
MOVEI T1,OP.RID ;GET OPCODE
MOVEI T2,KLPDRG ;LOW PRIORITY
CALLRET DRVSND ;(T1,T2,T3,Q1,Q2,Q3) SEND THE PACKET
;KLPRRG - Routine to send a Read Register
;ACCEPTS:
; Q2/ ADDRESS OF PACKET
; Q3/ ADDRESS OF PCB
; CALL KLPRRG
;Returns +1: Failure
; +2: Success
KLPRRG:
SETZB Q1,.PKREG(Q2) ;CLEAR MBZ FIELDS, "NODE NUMBER"
MOVEI T2,.RGNOD ;NODE NUMBER IS THE REGISTER TO READ
DPB T2,PKYREG ;WHERE IT WILL DO THE MOST GOOD
SETZM T3 ;FLAGS WORD IS 0
MOVEI T1,OP.RRG ;OP = READ REGISTER
MOVEI T2,KLPDRG ;PRIORITY
CALL DRVSND ;(T1,T2,T3,Q1,Q2,Q3) ASK THE KLIPA WHO WE ARE
RETBAD
RETSKP
;KLPSCK - ROUTINE TO SEND SET CIRCUIT
;KLPSDG - ROUTINE TO SEND A DATAGRAM WITHOUT AN OPEN V.C.
;ACCEPTS:
; Q1/ Node number
; Q2/ address of buffer
; Q3/ PCB address
; CALL KLPSCK/KLPSDG/KLPOPN
;RETURNS +1: FAILURE
; +2: SUCCESS
;KLPOPN - Entry point for telling port to open V.C.
;KLPCLO - Entry point for telling port to close V.C.
;When calling KLPSCK directly, caller must store .PKCKT word according
;to function desired
KLPCLO: MOVX T1,CK.LST ;CLOSE VIRTUAL CIRCUIT
SETZRO <IDPAO,IDPBO>,(Q1) ;BOTH PATHS CLOSED
JRST KLPOP1 ;MOVE ON
KLPOPN: MOVE T1,[CK.LST!CK.CST!CK.LPT!CK.PGD] ;OPEN VIRTUAL CIRCUIT
SETONE <IDPAO,IDPBO>,(Q1) ;BOTH PATHS OPEN
KLPOP1: MOVEM T1,.PKCKT(Q2) ;ASSUME NR-NS=0 INITIALLY
KLPSCK: MOVEI T1,OP.CKT ;SET VC
MOVEI T3,20
ADDB T3,KLPXID ;GET NEW TRANSACTION ID
MOVEM T3,.PKXID(Q2) ;SAVE FIRST WORD
MOVEM T3,.PKXID+1(Q2) ; AND SECOND WORD
JRST KLPS1
KLPSDG: LDB T1,PKYPPD ;GET PACKET TYPE
MOVE T2,STRLEN(T1) ;LOOK UP PACKET LENGTH
DPB T2,PKYLEN ;STORE IT IN PACKET
CALL MASAGE ;SWAP THE PPD BYTE AND ADJUST LENGTH
MOVEI T1,OP.SDG ;SEND DATAGRAM
KLPS1: MOVEI T2,KLPDRG ;PRIORITY
SETZ T3, ;NO FLAGS
CALLRET DRVSND ;(T1,T2,T3,Q1,Q2,Q3) SEND THE DATAGRAM
;START PACKET LENGTH TABLE
STRLEN: SR.LEN ;(PPD = 0) START LENGTH
SR.LEN ;(PPD = 1) STACK LENGTH
SR.ALN ;(PPD = 2) ACK LENGTH
0 ;3 - application datagram doesn't come here
0 ;4 - application message doesn't come here
0 ;5 - error packet doesn't come here
SR.ALN ;6 - Shutdown
;ENTRIES FROM SCA RMTSTA AND RMTRST CALLS.
;RMTRST - RESET THE REMOTE NODE
; USAGE
; BLCAL. (RMTRST,<RNODE,SS.FRB>)
; RNODE=NODE TO BE RESET
; SS.FRB=FORCE THE RESET
RMTRST::BLSUB.(<RNODE,SS.FRB>)
SAVEAC <Q1,Q2,Q3,P1>
MOVE P1,CHNTAB+KLPRH2 ;GET CDB ADDRESS
CALL PPDGDB
RETBAD ()
MOVE Q1,RNODE ;GET THE NODE
SETONE IDRST,(Q1) ;SET RESET REMOTE INDICATOR
SETZRO IDSTA,(Q1) ;DO NOT SEND A START
SETZRO IDSAD,(Q1) ;CLEAR ANY STARTING ADDRESS
HRLZ Q3,SS.FRB ;GET THE FORCE ARGUMENT
HRLI Q1,KLPRH2 ;GET THE CHANNEL NUMBER
CALL PPDSRS
RETSKP
RMTSTA::BLSUB.(<RNODE,SS.DSA,SS.STA>)
SAVEQ
MOVE Q1,RNODE ;GET THE NODE NUMBER
SKIPE SS.STA ;IS A STARTING ADDRESS WANTED?
IFNSK.
HRRZ Q3,SS.DSA ;YES.
STOR Q3,IDSAD,(Q1) ;YES. STORE THE STARTING ADDRESS.
ENDIF.
SETONE IDSTA,(Q1) ;SET THE START REMOTE FLAG
RETSKP
;ROUTINE TO SEND A START OR RESET MAINTENANCE FUNCTION
;CALL: Q1/CHAN,,NODE
; Q2/PACKET ADDRESS
; Q3/N,,0 = RESET. N NON-0 => FORCE
; Q3/N,,-1 = START. N=START ADDR (0=DEFAULT)
PPDSRS::HLRZ T1,Q1 ;CHAN
MOVE T1,CHNTAB(T1) ;GET CDB ADDRESS
MOVE T1,CDBPCB(T1) ;GET PCB
HRRZS Q1 ;Q1=NODE
EXCH Q3,T1 ;Q3=PCB ADDR
TRNE T1,-1 ;RESET?
JRST KLPSST ;NO. START
SETZM T3 ;YES. ASSUME NO FLAGS
TLNE T1,-1 ;FORCE?
MOVX T3,PF.FRC ;YES. LIGHT THE BIT IN FLAGS WORD
MOVEI T1,OP.RRS ;FUNCTION = RESET
CALLRET DIASND ;(T1,T3,Q1,Q2,Q3) SEND THE DG
KLPSST: HLRZ T2,T1 ;START ADDRESS
LSH T2,4 ;POSITION IT
MOVEM T2,.PKSAD(Q2) ;STUFF IN THE PACKET
SETZM T3 ;NO FLAGS
TLNN T1,-1 ;WAS THERE A START ADDR?
MOVX T3,PF.DSA ;NO. ASK FOR DEFAULT STARTING ADDRESS
MOVEI T1,OP.SRS ;FUNCTION = START
CALLRET DIASND ;(T1,T3,Q1,Q2,Q3) SEND THE START AND RETURN
;ROUTINE TO SET COUNTERS
;ACCEPTS: Q1/MASK,INCLUDING THRESHOLD
; Q2/PACKET TO USE
; Q3/NODES
; P1/CDB
;RETURNS: +1
PPDSPT::MOVEM Q1,.PKMSK(Q2)
SETZM .PKPND(Q2) ;CLEAR PORT WORD
DPB Q3,PKYCND ;WHICH NODE TO MONITOR
MOVEI T1,OP.SPT ;OPERATION IS SET POINTERS
SETZB T3,Q1 ;NO FLAGS, PORT FIELD = 0
MOVE Q3,CDBPCB(P1) ;ADDRESS OF THE PCB
CALLRET DIASND ;(T1,T3,Q1,Q2,Q3) TELL THE KLIPA TO SEND IT
;READ COUNTERS
;ACCEPTS: T2/ REASON CODE
; Q2/ PACKET ADDRESS
; P1/ CDB
;RETURNS: +1
PPDRPT::MOVEI T1,OP.RCT ;FUNCTION
SETZB T3,Q1 ;NO FLAGS, PORT = 0
MOVE Q3,CDBPCB(P1) ;GET ADDRESS OF PCB
MOVEM T2,.PKXID(Q2) ;PUT REASON IN PACKET (IT'S IN THE XID WORD)
MOVEI T2,KLPDRG ;PRIORITY
CALL DRVSND ;(T1,T2,T3,Q1,Q2,Q3) SEND THE PACKET
JFCL ;NO SUCH RETURN
RET
;ACCEPTS: T1/ OP CODE
; T3/ FLAGS
; Q1/ NODE NUMBER
; Q2/ ADDRESS OF PACKET
; Q3/ ADDRESS OF PCB
;RETURNS: +1
DIASND: MOVEI T4,20
ADDB T4,KLPXID ;GET NEW TRANSACTION ID
MOVEM T4,.PKXID(Q2) ;SAVE FIRST WORD
MOVEM T4,.PKXID+1(Q2) ; AND SECOND WORD
MOVEI T2,KLPDRG ;PRIORITY
CALL DRVSND ;(T1,T2,T3,Q1,Q2,Q3) SEND THE PACKET
JFCL ;NO SUCH RETURN
RET
;Called from CHKR to do a READ-COUNTERS
;RETURNS: +1
SWAPCD
KLPRCT::SKIPN CIHERE ;[7444] Are we using the CI?
RET ;NO KLIPA
MOVE T1,TODCLK ;GET CURRENT TIME
CAMGE T1,RCTTIM ;TIME TO DO COUNTERS AGAIN?
RET ;NO
ADD T1,RCTPER ;YES, CALCULATE NEXT TIME
MOVEM T1,RCTTIM ;SET IT
SAVEPQ
MOVE P1,CHNTAB+KLPRH2 ;GET CDB
CALL PPDGDB ;(P1/Q2) GET A DATAGRAM BUFFER
RET
MOVEI T2,KS%PER ;GET REASON FOR DOING READ-COUNTERS
CALLRET PPDRPT ;(T2,Q2,P1) DO A READ-COUNTERS
RESCD
;SET THE SOFTWARE RESPONSE BITS
;ACCEPTS: T1/OPCODE
; T2/PRIORITY
; T3/FLAGS
; Q1/NODE NUMBER
; Q2/BUFFER ADDRESS
; Q3/PCB ADDRESS
;RETURNS: +1 FAILURE
; +2 SUCCESS
DRVSND: SETZRO PKSRB,(Q2) ;ASSUME NO RESPONSE BITS DESIRED
TXNN T3,PF.RSP ;DOES THE DRVIER WANT THE BUFFER BACK?
IFSKP.
SETONE PKDRV,(Q2) ;YES, SET THE SOFTWARE RESPONSE BIT
ENDIF.
CALLRET KLPSND ;(T1,T2,T3,Q1,Q2,Q3) SEND THE PACKET
;ROUTINE TO SEND A PACKET
;ACCEPTS: T1/OPCODE
; T2/PRIORITY
; T3/FLAGS
; Q1/NODE NUMBER
; Q2/BUFFER ADDRESS
; Q3/PCB ADDRESS
; CALL KLPSND
;RETURNS: +2
KLPSND:
IFN KLPDBG,<
MOVSI T4,-<KLPOPL> ;COPIED FROM KLPINT
KLPSN1: CAMN T1,KLPOPS(T4) ;DO WE KNOW THIS OP CODE?
JRST KLPSN2 ;YES.
AOBJN T4,KLPSN1 ;KEEP LOOKING
BUG.(HLT,KLPIOP,PHYKLP,SOFT,<PHYKLP - Invalid opcode>,,<
Cause: KLPSND was called with an invalid opcode.
>)
>
KLPSN2: MOVEM T3,.PKSTS(Q2) ;SAVE FLAGS
DPB Q1,PKYNOD ;SAVE NODE NUMBER
DPB T1,PKYOP ;SAVE OPERATION
SKIPGE T2 ;PRIORITY CAN'T BE NEGATIVE
BUG.(HLT,KLPPRI,PHYKLP,SOFT,<PHYKLP - Invalid priority>,,<
Cause: KLPSND was called with an invalid priority.
>)
CAILE T2,MAXQUE ;TOO LOW?
MOVEI T2,MAXQUE ;YES, REDUCE IT TO LOWEST PRIORITY WE HAVE
AOS CMDQS(T2) ;[7211] COUNT THE COMMAND
IMULI T2,.PBBLI+1 ;COMPUTE ADDRESS OF QUEUE
ADDI T2,.PBQ3I(Q3)
MOVE T1,T2 ;PROVIDE ADDRESS OF FLINK TO PUTQUE
CALL PUTQUE ;INSERT THE PACKET ON QUEUE
TDZA T4,T4 ;REMEMBER EMPTY QUEUE
SETOM T4 ;REMEMBER NON-EMPTY QUEUE
IFN KLPDBG,<
MOVE T1,10(Q2) ;command reference number
CALL COLEC1
>
;Label for CILOOK SNOOP code
CILOUT: MOVE T1,.PBPIA(Q3) ;PICK UP PIA ASSIGNMENT
SKIPN T4 ;WAS QUEUE EMPTY?
CONO KLP,CO.CQA+CO.BTS(T1) ;QUEUE WAS EMPTY - KICK THE PORT
IFN KLPDBG,<
SPION: MOVEI T1,.
HRL T1,Q2
CALL COLECT
MOVE T1,3(Q2) ;GET STATUS WORD
CALL COLECT
>
AOS CIPKSN ;[7211] COUNT THE SEND
RETSKP ;NO, RETURN TO CALLER
SUBTTL Routines for manipulating queues
;ULNKDG/ULNKMG - UNLINK A BUFFER FROM THE DATAGRAM OR MESSAGE FREE QUEUE
; CALL ULNKDG for datagram free queue
; CALL ULNKMG for message free queue
;RETURNS: +1 FAILED. T1/ ERROR CODE
; +2 SUCCESS. T1/ BUFFER ADDRESS
ULNKDG::BLSUB. (<SS.SBA>)
MOVX T1,.PBDFI ;GET DATAGRAM FREE QUEUE INTERLOCK
JRST ULNKM2
ULNKMG::BLSUB. (<SS.SBA>)
MOVX T1,.PBMFI ;GET MESSAGE FREE QUEUE INTERLOCK
ULNKM2: SAVEAC <Q2,Q3,P5>
MOVE P5,SS.SBA ;GET SB
IFN KLPDBG,<
SKIPN P5
BUG.(HLT,KLPULN,PHYKLP,SOFT,<PHYKLP - No system block when unlinking packet>,,<
Cause: ULNKxx was called with a system block address of 0.
>)
>
MOVE Q3,.SBAPB(P5) ;GET PCB
ADDI T1,(Q3) ;POINT AT INTERLOCK WORD OF CORRECT QUEUE
CALL REMQUE ;REMOVE THE 1ST MESSAGE
JRST ULNKM1 ;EMPTY!
JFCL
MOVE T1,Q2 ;RETURN PACKET ADDRESS
RETSKP
ULNKM1: CAIE T1,.PBDFI(Q3) ;DG QUEUE EMPTY?
IFSKP.
SKIPE CIBUGX
BUG.(INF,KLPNDG,PHYKLP,SOFT,<PHYKLP - No datagram buffer>,,<
Cause: TOPS-20 tried to remove a buffer from the datagram free queue but the
queue was empty.
>,,<DB%NND>) ;[7.1210]
MOVEI T1,1 ;GET A DATAGRAM BUFFER
CALL SC.ALD ;(T1/T1) FROM SCA'S POOL
RETBAD (KLPX11) ;FAILED
RETSKP ;SUCCESS
ENDIF.
;...
;...
SKIPE CIBUGX
BUG.(INF,KLPNMG,PHYKLP,SOFT,<PHYKLP - No message buffer>,,<
Cause: TOPS-20 tried to remove a buffer from the message free queue but the
queue was empty.
>,,<DB%NND>) ;[7.1210]
MOVEI T1,1 ;GET A MESSAGE BUFFER
CALL SC.ABF ;(T1/T1) FROM SCA'S POOL
RETBAD (KLPX11) ;FAILED
RETSKP ;SUCCESS
ENDBS.
;LINK A BUFFER (OR CHAIN OF BUFFERS) ONTO THE DATAGRAM OR MESSAGE FREE QUEUE
;RETURNS: +1 ALWAYS
LNKDFQ::BLSUB. (<SS.SBA,SS.PKA>)
MOVX T1,.PBDFI ;ONTO DATAGRAM FREE QUEUE
JRST LINKPK ;MOVE ON
LNKMFQ::BLSUB. (<SS.SBA,SS.PKA>)
MOVX T1,.PBMFI ;ONTO MESSAGE FREE QUEUE
LINKPK: SAVEAC <Q2,Q3,P5>
MOVE Q2,SS.PKA ;GET PACKET ADDR
MOVE P5,SS.SBA ;GET SB ADDRESS
IFN KLPDBG,<
SKIPN P5
BUG.(HLT,KLPLNK,PHYKLP,SOFT,<PHYKLP - No system block when linking packet>,,<
Cause: LNKxFQ was called with a system block address of 0.
>)
>
MOVE Q3,.SBAPB(P5) ;GET PCB ADDR
ADDI T1,(Q3) ;POINT AT QUEUE ADDRESS
LNKMF1: PUSH P,(Q2) ;SAVE ADDR OF NEXT PACKET BUFFER
CALL PUTQUE ;INSERT THIS PACKET ON QUEUE
JFCL
POP P,Q2 ;GET ADDR OF NEXT BUFFER
JUMPN Q2,LNKMF1 ;DO IT IF IT EXISTS
RET ;DONE
ENDBS.
;ROUTINE TO GET A DATAGRAM BUFFER
;CALL P1/CDB
;RETURNS +1 NONE AVAILABLE
; +2 Q2/BUFFER ADDR
PPDGDB::MOVE T1,CDBPCB(P1) ;PCB LOC
MOVEI T1,.PBDFI(T1) ;WHICH QUEUE
JRST KLPGD1 ;CARRY ON
;ROUTINE TO GET A BUFFER FROM THE DATAGRAM FREE QUEUE
;CALL: Q3/PCB
;RETURNS +1 IF NONE AVAILABLE
;RETURNS +2 IF OK Q2/ADDR OF BUFFER
KLPGDB: MOVEI T1,.PBDFI(Q3) ;WHICH QUEUE
KLPGD1: CALL REMQUE ;GET BUFFER
RET ;EMPTY
JFCL
RETSKP ;RETURN HAPPY
;PUT A PACKET ON THE DATAGRAM OR MESSAGE FREE QUEUE
;ACCEPTS: Q2/ PACKET ADDRESS
; Q3/ PCB ADDRESS
;RETURNS: +1
RETMSG: XMOVEI T1,.PBMFI(Q3) ;GET Q INTERLOCK
SKIPA
RETDG: XMOVEI T1,.PBDFI(Q3) ;GET Q INTERLOCK
CALL PUTQUE ;(T1,Q2) RETURN THE PACKET
JFCL ;DON'T CARE ABOUT EMPTINESS
RET
;SUBROUTINE TO REMOVE FIRST PACKET FROM A QUEUE
;ACCEPTS:
; T1=ADDRESS OF INTERLOCK WORD OF QUEUE
; CALL REMQUE
;RETURNS +1: QUEUE IS EMPTY BEFORE REMOVAL
; +2: QUEUE IS NON-EMPTY AFTER REMOVAL
; Q2/ ADDRESS OF PACKET (WHICH IS NOW UNQUEUED)
; +3: QUEUE IS EMPTY AFTER REMOVAL
; Q2/ ADDRESS OF PACKET (WHICH IS NOW UNQUEUED)
REMQUE:
IFN KLPDBG,<
CALL SANCHK ;(T1/) SEE IF THE QUEUE IS INTACT
>
CIOFF
CALL GTINTL
REMQU2: CALL CHKMPT ;IS QUEUE ALREADY EMPTY?
JRST QRET ;EMPTY
AOS (P) ;NOT EMPTY. SET FOR SKIP/SKIP2 RETURN
MOVE T2,.PBFLI(T1) ;GET 1ST PACKET FROM QUEUE
CALL CHKPAK ;GET ITS VIRTUAL ADDRESS
JRST REMQU4 ;VIRTUAL ADDR DOESN'T MATCH PHYSICAL!
MOVE Q2,T2 ;VIRTUAL ADDR OF PACKET IN Q2
IFN KLPDBG,<
SETO T2, ;THIS IS A REMOVE
CALL XXXKLP
MOVE T2,(P) ;TOP OF STACK
CALL XXXKLP
MOVE T2,-1(P) ;NEXT TO TOP OF STACK
CALL XXXKLP
MOVE T2,T1 ;GET QUEUE INTERLOCK WORD
CALL XXXKLP
MOVE T2,Q2 ;GET PACKET ADDRESS
CALL XXXKLP
>
DMOVE T2,.PKFLI(Q2) ;GET FLINK, BLINK OF THIS PACKET
CAME T2,T3 ;FLINK=BLINK?
JRST REMQU3 ;NO, QUEUE IS STILL NON-EMPTY
;This was last item on the queue. Mark it as empty
DMOVEM T2,.PBFLI(T1) ;YES. QUEUE IS EMPTY. POINT HEADER AT ITSELF
JRST QRETS ;AND SKIP - RETURN
;This was not the last item on the queue. Make PCB point to the next packet
REMQU3: MOVEM T2,.PBFLI(T1) ;POINT QUEUE HEADER AT NEXT PACKET
ADDI T2,.PKBLI ;POINT AT BLINK OF NEXT PACKET
PMOVEM T3,T2 ;[7.1002] Point next packet back at header
JRST QRET ;NON-SKIP RETURN
;...
;...
;HERE IF VIRTUAL ADDR IN PACKET ISN'T WHAT IT SHOULD BE
REMQU4: MOVE T4,.PBFLI(T1) ;GET THE FLINK WORD
BUG.(CHK,KLPVIR,PHYKLP,HARD,<PHYKLP - Virtual address in packet is wrong>,<<T1,QUEUE>,<T2,VMA>,<T3,PMA>,<T4,FLINK>>,<
Cause: The virtual address of a packet is incorrect. This indicates some sort
of inconsistency in one of the queues.
Action: The CI20 port is having microcode problems or may be going bad and
should be examined by Field Service.
Data: QUEUE - Address of the queue's interlock word
VMA - Contents of the software word in the packet
PMA - Physical address of the word pointed to
FLINK - FLINK word from PCB
>)
IFN KLPDBG,<CALL KLPBUG> ;LET'S FIND OUT WHY
MAP T2,.PBFLI(T1) ;GET PHYSICAL ADDR OF QUEUE HEADER
TLZ T2,777760
MOVEM T2,.PBFLI(T1) ;RESET QUEUE TO EMPTY
MOVEM T2,.PBBLI(T1)
SOS (P) ;GIVE EMPTY-QUEUE RETURN
JRST QRET
IFN KLPDBG,<
KLPMAX==^D500 ;SIZE OF BUFFER
XXXKLP: AOS T3,KLPPTR ;ADVANCE COUNTER
CAIL T3,KLPMAX ;TOO HIGH?
SETZB T3,KLPPTR ;YES, RESET IT
MOVEM T2,KLPBUF(T3) ;STORE DATA ITEM
RET ;DONE
RS(KLPPTR,1) ;INDEX INTO BUFFER
RS(KLPBUF,KLPMAX) ;BUFFER
>
;SUBROUTINE TO INSERT A PACKET ONTO A QUEUE
;ACCEPTS:
; T1/ ADDR OF INTERLOCK WORD OF QUEUE
; Q2/ ADDRESS OF PACKET
; CALL PUTQUE
;RETURNS +1:QUEUE WAS EMPTY
; +2 QUEUE WAS NON-EMPTY BEFORE INSERTION
PUTQUE:
IFN KLPDBG,<
CALL SANCHK ;(T1/)SEE IF THIS QUEUE IS INTACT
CAIGE Q2,20 ;AC'S AREN'T A GOOD PLACE FOR BUFFERS
BUG.(HLT,KLPACS,PHYKLP,SOFT,<PHYKLP - Address of packet in ACs>,,<
Cause: PUTQUE was called with a packet address in the ACs.
>)
CAIL Q2,PCB ;NEITHER IS THE PCB
CAILE Q2,PCB+L.PCB-1
SKIPA
BUG.(HLT,KLPAPC,PHYKLP,SOFT,<PHYKLP - Address of packet in PCB>,,<
Cause: PUTQUE was called with a packet address in the PCB.
>)
>
CIOFF
CALL GTINTL ;GET THE INTERLOCK
IFN KLPDBG ,<
SETZ T2, ;THIS IS A PUT
CALL XXXKLP
MOVE T2,(P) ;TOP OF STACK
CALL XXXKLP
MOVE T2,-1(P) ;NEXT TO TOP OF STACK
CALL XXXKLP
MOVE T2,T1 ;GET QUEUE INTERLOCK
CALL XXXKLP
MOVE T2,Q2 ;GET PACKET ADDRESS
CALL XXXKLP
>
STOR Q2,PKVRT,(Q2) ;SAVE VIRTUAL ADDR IN PACKET
MAP T3,.PKFLI(Q2) ;PHYSICAL ADDR OF PACKET
TLZ T3,777760
MAP T2,.PBFLI(T1) ;PHYSICAL ADDR OF QUEUE HEADER
TLZ T2,777760
CAME T2,.PBFLI(T1) ;FLINK POINT AT ITSELF (EMPTY QUEUE)?
JRST PUTQU3 ;NO
;Queue was empty when we started
MOVEM T2,.PKFLI(Q2) ;YES. POINT PACKET BACK AT QUEUE HEADER
MOVEM T2,.PKBLI(Q2)
MOVEM T3,.PBBLI(T1) ;POINT PCB FLINK AND BLINK AT PACKET
MOVEM T3,.PBFLI(T1)
JRST QRET ;RETURN +1
;...
;...
;Queue wasn't empty when we started.
PUTQU3: MOVEM T2,.PKFLI(Q2) ;POINT FLINK OF PACKET AT PCB
MOVE T2,.PBBLI(T1) ;GET FORMER END OF QUEUE
MOVEM T3,.PBBLI(T1) ;POINT QUEUE TAIL AT THIS PACKET
MOVEM T2,.PKBLI(Q2) ;POINT BLINK OF THIS PACKET AT FORMER END
PMOVEM T3,T2 ;[7.1002] Point BLINK of former end at this packet
JRST QRETS ;RETURN +2
;TRCKLP - Routine to trace a queue pointed to by the PCB
;ACCEPTS:
; T1/ address of interlock word
; T2/ address of where to store the VMAs
; CALL TRCKLP
;RETURNS +1: ALWAYS
;This routine traces a queue, and places the virtual addresses of the
;packets into the location pointed to by T2, and the following locations.
;It stores the count in the first location.
TRCKLP:
SAVET
SAVEQ
MOVEM T2,Q1 ;SAVE THE STARTING ADDRESS
MOVEM T2,Q2
AOS Q1 ;SAVE THE FIRST WORD FOR THE COUNT
MAP Q3,.PBFLI(T1) ;GET PHYSICAL ADDRESS OF FLINK
TLZ Q3,777760 ;MASK OFF PAGE FAIL BITS
CIOFF
CALL GTINTL ;GET THE INTERLOCK
CALL CHKMPT ;IS QUEUE EMPTY?
JRST TRCKL4 ;YES. DONE THEN
CALL KLPFOO
JRST [ MOVEM T3,(Q1) ;THIS WAS THE LAST. RECORD IT
JRST TRCKL4] ;AND QUIT
MOVEM T3,(Q1) ;FOUND ENTRY. RECORD IT
AOS Q1 ;STEP TO NEXT LOCATION
TRCKL5: CALL KLPFO2 ;GET THE NEXT ENTRY
JRST [ MOVEM T3,(Q1) ;SAVE ITS VMA
JRST TRCKL4]
MOVEM T3,(Q1)
AOS Q1
JRST TRCKL5
;Finished. Save the count
TRCKL4: SUB Q1,Q2 ;COMPUTE LENGTH
SOS Q1
MOVEM Q1,(Q2) ;SAVE IT
JRST QRET
;FNDKLP - Routine to search a queue for a particular packet
;ACCEPTS:
; T1/ Address of interlock word
; T2/ Virtual address of packet
; CALL FNDKLP
;RETURNS +1: DIDN'T FIND IT
; +2: FOUND IT
FNDKLP:
SAVET
SAVEQ
MOVEM T2,Q1 ;SAVE THE ADDRESS WE WANT TO MATCH
MAP Q3,.PBFLI(T1) ;GET PHYSICAL ADDRESS OF FLINK
TLZ Q3,777760 ;MASK OFF PAGE FAIL BITS
CIOFF
CALL GTINTL ;GET THE INTERLOCK
CALL CHKMPT ;IS QUEUE EMPTY?
JRST QRET ;YES. DONE THEN
CALL KLPFOO
JRST [ CAMN T3,Q1 ;THE ONE WE WANTED?
JRST QRETS ;YES
JRST QRET] ;NO. QUIT
CAMN T3,Q1 ;NOT THE LAST. THE ONE WE WANTED?
JRST QRETS ;YES.
FNDKL5: CALL KLPFO2 ;GET THE NEXT ENTRY
JRST [ CAMN T3,Q1 ;THE ONE WE WANTED?
JRST QRETS
JRST QRET] ;NO. QUIT
CAMN T3,Q1 ;THE ONE WE WANTED?
JRST QRETS ;YES.
JRST FNDKL5
;SANCHK - Perform sanity check on a queue
;ACCEPTS:
; T1/ ADDRESS OF INTERLOCK WORD
;AT THE MOMENT, RETURNS +1 ALWAYS. INNER ROUTINE BUGHLTS ON FAILURE
IFN KLPDBG,<
SANCHK:
;Please, leave the RET in place for production systems. This code tends
;to produce timing problems in the CI port. Feel free to NOP the RET for
;stand alone work, realizing the possible consequences.
;[8843]
;However, we have not seen any bad side effects with CI ucode 1.1(733)
;therefore, we have removed the RET. This code is only active when
;KLPDBG=1. It may be necessary to have this code with KLPDBG=1 (for
;instance, we may catch KLPNOM BUGHLTs with this).
; RET ;[8843] Removed
SAVET
SAVEQ
MAP Q3,.PBFLI(T1) ;GET PHYSICAL ADDRESS OF FLINK
TLZ Q3,777760 ;MASK OFF PAGE FAIL BITS
CIOFF
CALL GTINTL ;GET THE INTERLOCK
CALL CHKMPT ;IS QUEUE EMPTY?
JRST QRET
CALL KLPFOO
JRST QRET ;THIS WAS THE LAST. QUIT
SANCH5: CALL KLPFO2
JRST QRET
JRST SANCH5
JRST QRET
> ;END IFN KLPDBG
;ACCEPTS:
; T1/ ADDRESS OF INTERLOCK WORD
; Q3/ PHYSICAL ADDRESS OF FLINK WORD
;RETURNS +1: THIS WAS THE LAST ENTRY
; +2: THERE ARE MORE ENTRIES
; T2/ PHYSICAL ADDRESS
; T3/ VIRTUAL ADDRESS
;SUBSEQUENT CALLS TO KLPFO2 MUST HAVE T2 SET UP FROM PREVIOUS CALL
KLPFOO: CALL CHKMPT ;IS QUEUE EMPTY?
BUG.(HLT,KLPMTY,PHYKLP,SOFT,<PHYKLP - Queue is empty>,,<
Cause: We want to trace the pointers on a queue but the queue is empty.
>)
MOVE T2,.PBFLI(T1) ;NO. POINT TO FIRST PACKET
;Here to check the next packet. PMA of packet in T2.
KLPFO2: CALL CHKPAK ;GET VIRTUAL ADDRESS OF PACKET
BUG.(HLT,KLPBPK,PHYKLP,SOFT,<PHYKLP - Bad packet>,,<
Cause: The virtual address of the packet is invalid.
>)
MOVE T3,T2 ;SAVE THE VMA
MOVE T2,.PKFLI(T2) ;GET FLINK OF THIS PACKET
CAMN T2,Q3 ;POINTS BACK TO THE QUEUE?
RET ;YES. THIS IS THE LAST
RETSKP
;GTINTL - ROUTINE TO GET THE INTERLOCK
; T1/ ADDRESS OF INTERLOCK WORD
; CALL GTINTL
;RETURNS +1: ALWAYS
;CALLER MUST BE CIOFF
GTINTL:
IFN KLPDBG,<
MOVE T3,KLPOWN ;GET OWNER OF INTERLOCK
CAIE T3,-1 ;OK?
BUG.(HLT,KLPHVL,PHYKLP,SOFT,<PHYKLP - Already have queue interlock>,,<
Cause: We are attempting to get a queue interlock which we already have.
>)
HRRZ T3,T1 ;FORGET ABOUT SECTION 1
CAIE T3,PCB+.PBQ3I ;MUST BE AN INTERLOCK WORD IN PCB
CAIN T3,PCB+.PBQ2I
JRST GTINT2
CAIE T3,PCB+.PBQ1I
CAIN T3,PCB+.PBQ0I
JRST GTINT2
CAIE T3,PCB+.PBRQI
CAIN T3,PCB+.PBMFI
JRST GTINT2
CAIN T3,PCB+.PBDFI
JRST GTINT2
BUG.(HLT,KLPIIW,PHYKLP,SOFT,<PHYKLP - Invalid interlock word>,,<
Cause: The interlock words are predefined locations in the PCB. The address
being checked was not one of those locations.
>)
>
GTINT2: AOSN T2,.PBIWD(T1) ;WAIT FOR INTERLOCK
JRST [ CONSO PI,1B25 ;TAKING A KLIPA INTERRUPT NOW?
SKIPA T2,INSKED ;NO. PROCESS OR SCHEDULER CONTEXT?
SETOM T2 ;YES. RECORD THAT
MOVEM T2,KLPOWN ;RECORD THE OWNER OF THE INTERLOCK
MOVEM T1,KLPQ ;SAVE WHICH INTERLOCK WORD WE GOT
RET]
SKIPGE T2 ;SHOULDN'T BE NEGATIVE
JRST GTINT3
CAIGE T2,TIMOUT ;WAITED LONG ENOUGH?
JRST GTINTL ;NO, TRY AGAIN
CONSO PI,1B25 ;TAKING A KLIPA INTERRUPT?
SKIPA T4,INSKED ;NO. GET SCHEDULER VS. PROCESS CONTEXT
SETOM T4 ;YES. RECORD INTERRUPT LEVEL
MOVE T3,KLPOWN ;GET CURRENT OWNER
CAIE T2,TIMOUT ;YES. IS THE VALUE WHAT WE EXPECT?
JRST GTINT3 ;NO. COMPLAIN
AOS BRKCNT
;...
;...
BUG.(CHK,KLPTIM,PHYKLP,HARD,<PHYKLP - Timed out waiting for queue interlock>,<<T1,QUEUE>,<T2,COUNT>,<T3,OWNER>,<T4,CONTXT>>,<
Cause: The KLIPA driver timed out trying to get the interlock for a queue.
The KLIPA microcode should never have the lock this long.
Action: If this problem occurs often or can be reproduced, there could be a
problem with the CI20 microcode or hardware. Field Service should
verify that the CI20 is healthy.
Data: QUEUE - Address of the queue's interlock word
COUNT - Interlock word value in PCB
OWNER - Interlock word address in PCB
CONTXT - 0 if process context, -1 if at interrupt/scheduler level
>)
RET
GTINT3: BUG.(HLT,KLPHOG,PHYKLP,HARD,<PHYKLP - Interlock value on queue is too large>,<<T1,QUEUE>,<T2,COUNT>,<T3,OWNER>,<T4,CONTXT>>,<
Cause: The KLIPA driver timed out the interlock, but the value isn't what is
expected.
Action: This BUGHLT generally indicates bad or flakey CI20 hardware. It also
be caused by a CI20 microcode bug, but that is unlikely. Field Service
should check out the CI20 hardware and the CBUS and EBUS interfaces.
Data: QUEUE - Address of the queue's interlock word
COUNT - Interlock word value in PCB
OWNER - Interlock word address in PCB
CONTXT - 0 if process context, -1 if at interrupt/scheduler level
>)
;Common exit from routines that manipulate queues. Clears the
;interlock, allows interrupts.
QRETS: AOS (P) ;SET FOR SKIP RETURN
QRET: MOVEI T2,-1 ;INDICATE NO SOFTWARE OWNS INTERLOCK
MOVEM T2,KLPOWN
SETOM .PBIWD(T1) ;RELEASE INTERLOCK
CION
RET ;RETURN TO CALLER
;ROUTINE TO CHECK IF A QUEUE IS EMPTY
;CALL WITH T1=ADDRESS OF INTERLOCK WORD OF QUEUE
;RETURNS WITH T1 UNCHANGED
;NON-SKIP RETURN IF QUEUE IS EMPTY
;SKIP RETURN IF QUEUE IS NON-EMPTY
CHKMPT: MAP T2,.PBFLI(T1) ;GET PHYSICAL ADDRESS OF QUEUE HEADER
TLZ T2,777760
CAMN T2,.PBFLI(T1) ;DOES QUEUE POINT AT ITSELF (EMPTY) ?
RET ;YES, NON-SKIP
RETSKP ;NO, SKIP
;ROUTINE TO RETURN THE VIRTUAL ADDRESS OF A PACKET
;ACCEPTS:
; T2/PACKET PHYSICAL ADDRESS
; CALL CHKPAK
;RETURNS +1: PACKET IS BAD - THE VIRTUAL ADDRESS IN THE PACKET DOESN'T MATCH
; THE PHYSICAL ADDRESS
; +2: SUCCESS,
; T2/ VIRTUAL ADDRESS OF PACKET
;PRESERVES T1
CHKPAK: SAVEAC <Q1>
IFN KLPDBG,<
CAIGE T2,20 ;SHOULDN'T BE IN AN AC
BUG.(HLT,KLPACP,PHYKLP,SOFT,<PHYKLP - Physical address of packet in ACs>,,<
Cause: The physical address of this packet is less than 20.
>)
>
MOVE Q1,T2 ;PRESERVE PHYICAL ADDR OF PACKET
ADDI T2,.PKVRT ;POINT AT PACKETS VIRTUAL ADDRESS
PMOVE T2,T2 ;[7.1002] Get C(addr) which should be virtual addr
LOAD T2,PKVRT,T2 ;GET THE VIRTUAL ADDRESS
IFN KLPDBG,<
CAIGE T2,20
BUG.(HLT,KLPACV,PHYKLP,SOFT,<PHYKLP - Virtual address of packet in ACs>,,<
Cause: The virtual address of this packet is less than 20.
>)
>
MAP T3,(T2) ;COMPUTE PHYSICAL ADDR OF THAT VIRTUAL ADDR
TLZ T3,777760
CAME T3,Q1 ;PHYSICAL ADDRESSES MATCH?
BUG.(HLT,KLPNOM,PHYKLP,SOFT,<PHYKLP - Physical address doesn't match>,,<
Cause: The physical address of a packet is stored in the packet. The physical
address of this packet doesn't match what is in the packet.
Action: This BUGHLT generally indicates a software problem. Diagnosis of the
problem is extremely difficult without the SCA ring buffer code
enabled and KLPDBG enabled.
>)
IFN KLPDBG,<
MOVE T4,.PKFLI(T2) ;GET PACKET'S FLINK
LOAD T4,PHCPNO,T4 ;GET PHYSICAL PAGE NUMBER
CAMLE T4,NHIPG ;DOES IT EXIST?
BUG.(HLT,KLPPMA,PHYKLP,SOFT,<PHYKLP - Bad physical address for packet>,,<
Cause: Physical address for packet is impossible.
>)
>
RETSKP ;ALL IS WELL
Repeat 0,< ;[7.1002] Remove obsolete routines - replaced by instructions
;SUBROUTINE TO GET THE CONTENTS OF A GIVEN PHYSICAL ADDRESS
;CALL: T2/DESIRED PHYSICA ADDRESS
; RETURNS +1, WITH T2=CONTENTS
;PRESERVES T1
PMOVE: PUSH P,T1 ;SAVE T1
LOAD T1,PGWD,T2 ;WORD NUMBER
LOAD T2,PHCPNO,T2 ;PHYSICAL PAGE NUMBER
CALL MOVRCA ;GET THE CONTENTS
MOVE T2,T1 ;RETURNS THE ANSWER IN T2
JRST PMOVER ;RESTORE T1 AND RETURN
;ROUTINE TO STORE INTO A GIVEN PHYSICAL ADDRESS
;CALL: T3/CONTENTS TO BE STORED
; T2/ PHYSICAL ADDRESS TO STORE IT
;RETURNS +1 ALWAYS
;PRESERVES T1
PMOVEM: PUSH P,T1 ;PRESERVE T1
LOAD T1,PGWD,T2 ;WORD NUMBER
LOAD T2,PHCPNO,T2 ;PAGE NUMBER
CALL STORCA ;STORE T3 THERE
PMOVER: POP P,T1 ;RESTORE T1
RET ;AND RETURN TO CALLER
> ;[7.1002] End obsolete routines
SUBTTL Named-Buffer Routines
;ROUTINE TO GET A FREE BHD
;CALL P1=0 IF USED THE RESERVED SLOT, P1 NON-0 IF DON'T
;NON-SKIP RETURN IF NONE AVAILABLE
;SKIP-RETURN NORMALLY, WITH T1=TABLE INDEX, T2=BHD ADDRESS
GETBHD::SKIPN BSDLOC ;IF NO BSDS ARE FREE
RETBAD (KLPX2) ;WE MIGHT AS WELL FORGET IT
MOVE T1,BHDCPT ;WHERE WE LAST GOT A BHD
ADDI T1,L.BHD-1
AOBJP T1,GETBH3 ;STEP TO NEXT TABLE SLOT
GETBH1: SKIPE .BHKEY(T1) ;IS THIS ONE AVAILABLE?
JRST GETBH2 ;NO, TRY NEXT
MOVEM T1,BHDCPT ;SAVE WHERE WE LEFT OFF
HRRZ T2,T1 ;GET ADDRESS OF BHD
SUB T1,BHDIPT ;COMPUTE INDEX INTO TABLE
RETSKP ;AND GOOD RETURN
GETBH2: CAMN T1,BHDCPT ;BACK TO WHERE WE STARTED?
RETBAD (KLPX1) ;YES, NONE AVAILABLE
ADDI T1,L.BHD-1
AOBJN T1,GETBH1 ;NO, TRY NEXT SLOT
GETBH3: MOVE T1,BHDIPT ;END OF TABLE, START AT BEGINNING
JUMPE P1,GETBH1 ;START AT 1ST BHD IF WE CAN USE THE RES'VD ONE
ADDI T1,L.BHD-1 ;CAN'T USE IT. START AT NEXT BHD
AOBJN T1,GETBH1
;ROUTINE TO RETURN THE BHD, BSDS ASSOCIATED WITH A PACKET
;CALL: Q2=ADDRESS OF PACKET BUFFER
; T1=BUFFER NAME (IN CORRECT ORDER)
RTNBHX::CIOFF ;TURN OFF INTERRUPTS
CALL GIVBHD ;RETURN THE BHD/BDT
SKIPA T3,T2 ;POINT T3 AT 1ST BSD
RTNBH1: CALL GIVBSD ;RETURN THE BSD
SKIPN T1,T3 ;IS THERE A BSD?
JRST RTNCIO ;NO. WE'RE DONE
MOVE T3,.BSNXT(T1) ;YES. PRESERVE ITS LINK
JRST RTNBH1 ;AND GIVE IT BACK
RTNCIO: CION ;TURN INTERRUPTS BACK ON
RET ;AND RETURN
;ROUTINE TO GET A BSD
;NON-SKIP IF NONE AVAILABLE, SKIP IF HAVE IT,
;T1=BSD ADDRESS
;PRESERVES T3, T4
GETBSD::CIOFF
SKIPN T1,BSDLOC ;ANY BSDS AT ALL?
RETBAD (KLPX2,<CION>) ;NO. NON-SKIP
MOVE T2,.BSNXT(T1) ;YES. GET LINK TO NEXT
;*****************************************************************************
;WE TOLD THE DIAGNOSTICS FOLKS THAT WE'D RESERVE 1 BHD/BSD FOR THEIR USE
;WE NEED A WAY TO DETERMINE THAT THIS IS A DIAGNOSTIC, AND LET THEM HAVE THE LAST ONE
;*****************************************************************************
JUMPE T2,[JFCL ;DIAGNOSTIC?
RETBAD (KLPX2,<CION>) ;NO. DON'T USE THE LAST BSD
JRST .+1] ;YES. USE THE RESERVED BSD
MOVEM T2,BSDLOC ;STORE IT AS 1ST FREE BSD
CION ;RE-ENABLE INTERRUPTS
RETSKP ;GOOD-RETURN
;ROUTINE TO RETURN A BSD
;ENTER T1=BSD ADDR
;PRESERVES T3
GIVBSD::MOVE T2,BSDLOC ;GET CURRENT 1ST BSD
MOVEM T1,BSDLOC ;SAVE AS 1ST AVAILABLE BSD
MOVEM T2,.BSNXT(T1) ;LINK FORMER 1ST FREE TO THIS
RET ;AND WE'RE DONE
;ROUTINE TO RETURN A BHD
;CALL T1=BUFFER NAME
;ALWAYS RETURNS TO CALL+1 WITH T1=ADDRESS OF BHD, T2=C(.BHBSA), T4 = C(.BHKEY)
;PRESERVES T3
GIVBHD::LDB T1,[POINT BHSIDX,T1,BHPIDX] ;GET INDEX INTO BUFFER DESCRIPTOR TABLE
ADD T1,BHDIPT ;POINT AT RIGHT BDT ENTRY
MOVE T2,.BHBSA(T1) ;GET POINTER TO BSD BEFORE WE RETURN THE BHD
MOVE T4,.BHKEY(T1) ;RETURN THE KEY INCASE OF TRANSFER ERROR
SETZM .BHKEY(T1) ;MAKE KEY INVALID IN CASE HSC SCREWS UP
RET
;MAPBUF - MAP A BUFFER
; .BLCAL (MAPBUF,(SS.BDA)
; SS.BDA - ADDRESS OF THE BUFFER DESCRIPTOR
;RETURNS: +1 FAILED. T1/ ERROR CODE
; +2 SUCCESS
;MAPBUF WILL CREATE THE NIBBLE COUNTS FOR THE BHD AND BSD BASED UPON
;THE LENGTH SPECIFIED IN THE DESCRIPTOR AND WILL ASSUME THAT THE LENGTH
;FOR CORE MODE IS IN WORDS AND THE LENGTH FOR IND AND HIGH DENSITY IS
;IN 8 BIT BYTES.
;
;MAPBUF WILL HANDLE MULTIPLE DESCRIPTOR BLOCKS BUT WILL BUILD ONE
;BHD AND MULTIPLE BSDS. MAPBUF WILL ONLY LOOK AT THE FLAGS FROM THE FIRST
;DESCRIPTOR BLOCK AND SET ALL BSDS ACCORDING TO THESE FLAG SETTINGS.
MAPBUF::BLSUB. (<SS.BDA>)
SAVEPQ ;WE NEED LOTS OF ACS
MOVE P3,SS.BDA ;GET FIRST BUFFER DESCRIPTOR
SETZ P1, ;INDICATE WE WANT THE RES'VD BHD
CIOFF ;DISABLE CI INTERRUPTS
CALL GETBHD ;(/T1,T2) GET A BHD
RETBAD (,<CION> ) ;NONE AVAILABLE. LOSE
MOVE P1,T2 ;P1=BHD ADDRESS
SETZM .BHBSA(P1) ;IN CASE NO BSDS AVAILABLE
HRRZ P2,T1 ;BHD INDEX
LSH P2,^D35-BHPIDX ;POSITION IT WHERE THE PORT WANTS IT
MOVEI T1,1B31
ADDB T1,CRFNUM ;SET KEY
LSH T1,^D35-BHPKEY-4
IORM T1,P2 ;P2=BUFFER NAME
MOVE T2,.MDFLG(P3) ;GET THE FLAGS AND MODE
TXNE T2,SQ%WRT ;ALLOW WRITE OF HOST MEMORY?
TXO T1,BH.WRT ;YES. SET THE WRITE BIT IN THE BHD
TXNE T2,SQ%CVD ;ALLOW CLEARING OF THE VALID BIT?
TXO T1,BH.PRE ;NO. SET THE DO NOT CLEAR VALID BIT IN THE BHD
TXO T1,BH.VAL ;SET THE VALID BIT
MOVEM T1,.BHKEY(P1) ;SAVE KEY/VALID BITS IN BHD
CION ;ENABLE INTERRUPTS
SETZ P4, ;P4 ACCUMULATES NIBBLE COUNT
MOVEI T4,(P1) ;SET BHD ADDRESS IN T4
SETZM .BHBSA(T4) ;ZERO THE POINTER IN CASE OF GETBSD FAILURE.
CALL GETBSD ;(/T1) GET THE FIRST BSD
JRST MAPBU4 ;LOSSAGE
MOVEM T1,.BHBSA(T4) ;POINT BHD AT FIRST BSD
MOVE T4,T1 ;SET T4 WITH ADDRESS OF BSD
MOVE Q1,P3 ;Q1 USED TO PROCESS THE DESCRIPTOR BLOCKS
MOVE P5,(P3) ;POINTER TO NEXT DESCRIPTOR BLOCK
ADDI Q1,.MDSSD ;SET Q1 TO START OF LENGTH PAIRS
JRST MAPBU5
;HERE TO PROCESS DESCRIPTOR PAIRS 2-N OF THE
;FIRST DESCRIPTOR BLOCK OR ALL DESCRIPTOR
;PAIRS OF DESCRIPTOR BLOCKS 2-X.
;...
;...
MAPBU2: SKIPN .MDLEN(Q1) ;ANOTHER BSD NEEDED?
JRST MAPBU3 ;NO. FINISH UP
CALL GETBSD ;(/T1) GET THE NEXT BSD
JRST MAPBU4 ;LOSSAGE
MOVEM T1,.BSNXT(T4) ;POINT PREVIOUS BSD AT THIS ONE
MOVE T4,T1
MAPBU5: MOVE T2,.MDLEN(Q1) ;GET LENGTH OF THIS SEGMENT
LOAD T3,MD%DMD,.MDFLG(P3) ;GET THE MODE
CAIE T3,MD%DIC ;IND COMPATABLE?
IFSKP.
LSH T2,1 ;YES. LENGTH IN BYTES,CHANGE TO NIBBLES
MOVEM T2,.BSLEN(T1) ;STORE IN BSD
ADD P4,T2 ;ACCUMULATE TOTAL COUNT
MOVE T2,.MDADR(Q1) ;GET BASE ADDRESS WORD
TXO T2,BS.ICM ;SET IND COMPATABLE MODE IN BSD
ELSE.
CAIE T3,MD%DHD ;HIGH DENSITY?
IFSKP.
LSH T2,1 ;YES. LENGTH IN BYTES,CHANGE TO NIBBLES
MOVEM T2,.BSLEN(T1) ;SAVE LENGTH IN BSD
ADD P4,T2 ;ACCUMULATE TOTAL COUNT
MOVE T2,.MDADR(Q1) ;GET BASE ADDRESS
TXO T2,BS.HDM ;SET HIGH DENSITY BIT IN BSD.
ELSE.
;HERE FOR CORE DUMP MODE.
IMULI T2,CDNPW ;CALCULATE NIBBLES PER WORD FOR CORE DUMP.
MOVEM T2,.BSLEN(T1) ;SAVE LENTH IN BSD.
ADD P4,T2 ;ACCUMULATE TOTAL COUNT.
MOVE T2,.MDADR(Q1) ;GET BASE ADDRESS.
TXO T2,BS.CDM ;SET CORE DUMP MODE BIT IN BSD.
ENDIF.
ENDIF.
MOVEM T2,.BSADR(T1) ;SET MODE AND BASE ADDRESS IN BSD
SETZM .BSNXT(T1) ;ASSUME WE'RE AT THE END
ADDI Q1,.MDLSD ;STEP TO NEXT DESCRIPTOR LENGTH PAIR
JRST MAPBU2 ;HANDLE IT
MAPBU3: SKIPN Q1,P5 ;ANOTHER BUFFER OF DESCRIPTORS EXIST?
IFSKP.
MOVE P5,(Q1) ;POINT TO NEXT DESCRIPTOR BLOCK
ADDI Q1,.MDSSD ;POINT TO START OF THE DESCRIPTOR PAIRS
JRST MAPBU2 ;GO SET UP THE BSD
ENDIF.
MOVEM P4,.BHLEN(P1) ;NO, DONE. SAVE TOTAL NIBBLE COUNT IN BHD.
MOVE T1,P2 ;BUFFER NAME
RETSKP ;TELL CALLER WE'RE HAPPY
;HERE IF WE CAN'T GET ENOUGH BSDS
MAPBU4: MOVE T1,P2 ;BUFFER NAME
CALL RTNBHX ;RETURN BHD, BSDS
RETBAD (KLPX2) ;RETURN UNHAPPY
ENDBS.
;ROUTINE TO UNMAP A BUFFER
;RETURNS T4 = THE FIRST WORD OF THE BHD IN CASE SOMEONE IS INTERESTED
;RETURNS +1 IF THERE WAS AN ERROR REPORTED IN THE BHD (BH.ERR)
;RETURNS +2 SUCCESS
UMAP:: BLSUB. (<SS.NAM>)
MOVE T1,SS.NAM ;BUFFER NAME
LDB T1,[POINT BHSIDX,T1,BHPIDX] ;GET THE INDEX.
ADD T1,BHDIPT ;POINT AT THE RIGHT BHD
SKIPN .BHKEY(T1) ;IS THIS BHD IN USE?
RETSKP ;NO, THEN DO NOT TRY TO UNMAP IT.
;NOTE - THIS MAY WANT TO BE A RETBAD,
;BUT BECAUSE OF SCSJSY CONSIDERATIONS
;LEAVE IT A RETSKP.
MOVE T1,SS.NAM ;GET THE NAME AGAIN
CALL RTNBHX ;GIVE BACK RESOURCES
TXNN T4,BH.ERR ;CHECK FOR ERROR
RETSKP ;AND GO AWAY HAPPY
RETBAD (KLPX13) ;BUFFER TRANSFER ERROR
ENDBS.
SUBTTL Byte Swapping Routines
;REVERSE THE WORD AND PRESERVE THE ACS, EXCEPT FOR T1
SRVFUL::SAVET
CALL REVFUL ;REVERSE THE WORD
MOVEM T1,-4(P) ;WHERE RESTORER WILL GET T1
RET
;REVERSE THE FULL WORD (ALL 4 BYTES)
;PRESERVES T4
REVFUL::LDB T2,PBYTE1
LDB T3,PBYTE2 ;PICK UP THE BYTES
LDB CX,PBYTE3
LSH T1,^D24
DPB CX,PBYTE2 ;AND PUT THEM DOWN BACKWARDS
DPB T3,PBYTE3
DPB T2,PBYTE4
RET
;Account for PPD byte which port will add. We have to swap the bytes into
;eleven format and account for the PPD field in the text length...
;
; Usage:
; Call
; Q2/ Address of packet to be sent
;
; Return (+1) Always
; Q2/ Addr of corrected packet
;
;Clobbers only T1 and T2. Callers depend on this
;NOTE: Op code must be message or datagram!!!
MASAGE::
MOVE T1,[C%PPDL] ;get # of bytes in PPD field
ADDM T1,.PKLEN(Q2) ;Account For CI.PPD
LDB T1,PKYPPM ;Get the most significant byte of the PPD
LDB T2,PKYPPL ; and the least significant byte
DPB T2,PKYPPM ;Now swap the two bytes
DPB T1,PKYPPL ; into the correct format
RET ;All done
;Byte swap the PPD byte of a packet that has come off the wire. We can always
;assume that the PPD byte is in eleven format since HSC send it that way and
;our port swaps it that way on send.
;
; Usage:
; Call
; Q2/ Address of packet
;
; Return (+1)
; Q2/ Address of packet
;
RMASAG::LDB T1,PKYOP ;Get the port opcode
TXZ T1,OP.RMT ;Be sure remote bit is off
CAIE T1,OP.SMS ;Is this a message
CAIN T1,OP.SDG ; or datagram???
SKIPA T1,[-C%PPDL] ;Yes, get neg length of PPD field and go on
RET ;Not a msg or datagram, return now
ADDM T1,.PKLEN(Q2) ;Account for the PPD field length
LDB T1,PKYPPM ;Get most significant byte of PPD field
LDB T2,PKYPPL ; and the least significant byte
DPB T2,PKYPPM ;Now swap the PPD field
DPB T1,PKYPPL ; into 10 format
RET ;All done
SUBTTL PHYSIO Interface -- Dispatch Tables
;CHANNEL DISPATCH TABLE FOR THE KLIPA (CI)
KLPDSP::JRST KLPINI ;0 - INITIALIZATION
CALL DSPBUG ;1 - STACK SECOND CHANNEL COMMAND
JRST KLPSIO ;2 - START I/O
CALL DSPBUG ;3 - POSITION REQUEST
CALL DSPBUG ;4 - RETURN BEST XFER
JRST KLPINT ;5 - INTERRUPT PROCESSING
JRST KLPCCW ;6 - MAKE CHANNEL XFER WORD
JRST KLPHUN ;7 - TRANSFER HUNG
JRST KLPZAP ;10 - RESET CHANNEL
JRST KLPCHK ;11 - PERIODIC CHECK
JRST KLPEXT ;12 - CHECK UNIT EXISTANCE
JRST KLPCCA ;13 - EXTRACT ADDRESS FROM CCW WORD
;CONTROLLER/UNIT DISPATCH TABLE FOR THE KLIPA (CI)
KLDSP:: CALL DSPBUG ;0 - INITIALIZATION
CALL DSPBUG ;1 - START I/O
CALL DSPBUG ;2 - HANDLE INTERRUPT
CALL DSPBUG ;3 - ERROR RECOVERY
CALL DSPBUG ;4 - HUNG DEVICE
CALL DSPBUG ;5 - CONVERT BLK # TO CYLINDER/SURF-SEC
CALL DSPBUG ;6 - LATENCY COMPUTATION
CALL DSPBUG ;7 - START POSITIONING
CALL DSPBUG ;10 - ATTENTION INTERRUPT
CALL DSPBUG ;11 - SKIP IF POSITIONING REQUIREDD
CALL DSPBUG ;12 - STACK SECOND TRANSFER COMMAND
JRST KLEXT ;13- CHECK EXISTANCE OF UNIT
RET ;14- CHECK FOR HALTED CONTROLLER
DSPBUG: BUG.(HLT,KLPBDS,PHYKLP,SOFT,<PHYKLP - Bad dispatch from PHYSIO>,,<
Cause: PHYKLP was called to perform a function of which it is not capable.
>)
SUBTTL PHYSIO Interface -- KLPINI (Channel Initialization)
;KLIPA INITIALIZATION - HERE FROM PHYINI THROUGH KLPDSP (THE CDSINI OFFSET)
;RETURNS: +1 ALWAYS - IF CDB IS CREATED, P4/ KLIPA CHANNEL NUMBER +1
KLPINI::CONI KLP,T1 ;GET CHANNEL STATUS
AND T1,[CI.KDT] ;IS IT
CAME T1,[CI.KDT] ; REALLY A KLIPA?
RET ;NO, DON'T TOUCH IT
CONO KLP,CO.CPT ;[7134] YES, STOP IT
SKIPE NOKLIP ;WANT TO USE IT?
RET ;NO
;WE HAVE A KLIPA, BUILD THE CDB
SETOM CIHERE ;[7134] INDICATE WE ARE USING THE CI
MOVEI T1,CDBLEN ;GET LENGTH OF CDB
CALL PHYALC ;ALLOCATE SOME STORAGE
RET ;NO SPACE FOR CDB (PHYALC WILL BUGCHK)
SAVEAC <P1,P3>
MOVEI P1,-CDBINT(T1) ;CDB BASE ADDRESS TO P1
MOVEI P4,KLPRH2 ;GET KLIPA'S CHANNEL
MOVEM P1,CHNTAB(P4) ;SAVE CDB IN CHANNEL TABLE
HRRZM P4,CDBADR(P1) ;STORE CHNTAB INDEX
STOR P4,CDCHN,(P1) ;SAVE CHANNEL FOR ERROR.SYS PACKET
SETZRO CDPRT,(P1) ;CI PORT FOR ERROR.SYS PACKET
AOS P4 ;SET UP FOR RETURN TO PHYINI
EXCH P1,P3 ;GET CDB IN P3
MOVEI T1,.BTCDB ;MARK AS CDB
DPB T1,USYBKT ; ...
EXCH P1,P3 ;RESTORE
MOVEI T1,.CTCI ;SET CHANNEL TYPE
DPB T1,CSYTYP ;..
MOVEI T1,PHYCHN ;SET PIA
DPB T1,CSYPIA ; IN CONFIGURATION INFORMATION
MOVX T1,CS.STK ;CHANNEL CAN'T DO
ANDCAM T1,CDBSTS(P1) ; COMMAND STACKING
MOVX T1,CS.CIP ;THIS IS A
IORM T1,CDBSTS(P1) ; CI CHANNEL
MOVEI T1,CHNUNK ;GET "UNKNOWN" CODE
STOR T1,CFSTA,(P1) ;SET INITIAL STATE OF THE KLIPA
MOVEI T1,KLPRH2 ;GET RH NUMBER
LSH T1,2 ;TIMES 4
MOVEI T2,KIEPT+3(T1) ;IN UNUSED LOGOUT AREA
HRLZM T2,CDBICP(P1) ;AND STORE AS INTERRUPT VECOTOR
ADDI T1,RHEPT+KIEPT ;ADDRESS OF CHANNEL ICP AREA
HRRM T1,CDBICP(P1) ;STASH IN CDB
MOVEI T3,CDBINT(P1) ;ADDRESS FOR XPCW ON INTERRUPT
HRLI T3,(<XPCW>) ;BUILD INSTRUCTION
MOVEM T3,0(T2) ;STORE IN PAGE 0
;...
;...
MOVEI T3,CDBINT+4(P1) ;SET JUMP ADDRESS
MOVEM T3,CDBINT+3(P1) ;SET IN XFER VECTOR
SETZM CDBINT+2(P1) ;SET FLAGS TO 0
MOVE T1,[MOVEM P1,CDBSVQ]
ADDI T1,0(P1) ;INSTRUCTION TO STORE P1 IN CDB
MOVEM T1,CDBINT+4(P1) ;BUILD INTERRUPT CODE
MOVE T1,[JSP P1,PHYINT]
MOVEM T1,CDBINT+5(P1) ;DISPATCH TO PHYSIO
MOVE T1,[BLT 17,17] ;INSTRUCTION TO RESTORE ACCUMULATORS
MOVEM T1,CDBJEN(P1) ;PUT IN CDB
MOVE T1,[JRST KLPCHR] ;HOW TO EXIT THE INTERRUPT
MOVEM T1,CDBJEN+1(P1) ;DON'T DO A DATAO RH, IN THE EXIT SEQUENCE
MOVEI T1,CDBINT(P1) ;ADDRESS OF INTERRUPT PC
HRLI T1,(<XJEN 0>) ;BUILD XJEN INSTRUCTION
MOVEM T1,CDBJEN+2(P1) ;STORE
MOVEI T1,KLPDSP ;SET UP
MOVEM T1,CDBDSP(P1) ; CHANNEL DISPATCH VECTOR
MOVE T1,[-1-MAXNDS,,CDBUDB] ;MAKE AOBJN POINTER
ADDI T1,0(P1) ; TO UDB TABLE
MOVEM T1,CDBIUN(P1) ;SET INITIAL UNIT POINTER
MOVEM T1,CDBCUN(P1) ;SET CURRENT UNIT POINTER
SETZM CDBFLG(P1) ;CLEAR FLAGS WORD
SETOM CDBCTR(P1) ;SET PERFORMANCE COUNTER AVAILABLE
SETOM CDBNOD(P1) ;WE DON'T YET KNOW OUR NODE NUMBER YET
SETOM CDBXFR(P1) ;INDICATE CHANNEL FREE
CALL PCBINI ;(P1) INITIALIZE THE PCB
RET
;FIND THE KLIPA LATE (AFTER BOOTING THE MONITOR WITH NOKLIP SET NON-0)
;RETURNS: +1
;
;NOTE: You'd better know what you are doing if you ever call this routine.
;If there are other TOPS-20 systems on your CI you will be violating some
;basic rules of CFS. This routine is intended to be used only when there
;are no other TOPS-20 systems running on the CI.
KLPLAT: SETZM NOKLIP ;BACK TO NORMAL
CALL KLPINI ;PRETEND WE ARE PHYSIO
CALLRET PPDINX ;PRETEND WE ARE MEXEC
;INITIALIZE THE PCB
;ACCEPTS: P1/ CDB
;RETURNS: +1
PCBINI: SAVEAC <Q3>
MOVEI Q3,PCB ;PCB ADDRESS
MOVEM Q3,CDBPCB(P1) ;POINT CDB AT PCB
MAP T1,PCB ;GET PHYSICAL ADDRESS
TLZ T1,777760 ;MASK OUT GARBAGE
MOVEM T1,.PBPBA(Q3) ;SAVE BASE ADDR IN PCB FOR KLIPA HDWRE
SUBM Q3,T1 ;COMPUTE OFFSET BETWEEN PHYSICAL AND VIRTUAL ADDRESSES
MOVEM T1,OFFSET ;SAVE IT
LDB T2,CSYPIA ;GET PIA
MOVEM T2,.PBPIA(Q3) ;PUT IT IN PCB
CALL RSTQS ;(Q3/) RESET THE QUEUES
MOVEI T2,C%MGSZ
MOVEM T2,.PBMQE(Q3) ;MAX MESSAGE LENGTH
MOVEI T2,C%DGSZ
MOVEM T2,.PBDQE(Q3) ;MAX DATAGRAM LENGTH
SKIPE T1,BHDIPT ;ALREADY HAVE BUFFER DESCRIPTOR TABLE SET UP?
JRST PCBIN4 ;YES
MOVEI T1,BDTTAB+3 ;GET VIRTUAL ADDRESS OF BUFFER DESCRIPTOR TABLE
TRZ T1,3 ;MAKE SURE IT STARTS ON 4-WORD BOUNDARY
HRLI T1,-BHDNUM ;SET UP AOBJN POINTER
MOVEM T1,BHDIPT ;SAVE FOR FINDING A FREE BHD
MOVEM T1,BHDCPT
PCBIN2: SETZM .BHKEY(T1) ;SAVE POINTER TO BHD IN TABLE
ADDI T1,L.BHD-1 ;POINT AT NEXT BHD
AOBJN T1,PCBIN2 ;STORE ITS ADDR IN TABLE
MOVEI T2,BSDTAB+3
TRZ T2,3 ;START ON A 4-WORD BOUNDARY
MOVEM T2,BSDLOC ;SAVE ADDRESS OF BSD TABLE
MOVEI T3,2*BHDNUM-1 ;LINK THE BSDS TOGETHER
PCBIN3: MOVEI T4,L.BSD(T2) ;POINTER TO NEXT BSD
MOVEM T4,.BSNXT(T2) ;LINK THIS TO NEXT
ADDI T2,L.BSD
SOJG T3,PCBIN3 ;LOOP FOR ALL EXCEPT LAST
SETZM .BSNXT(T2) ;CLEAR LINK WORD IN LAST BSD
MOVSI T1,-10
MOVEM T1,CHNIUN ;SET UP POINTERS FOR UNQUEUEING REQUESTS
MOVEM T1,CHNCUN
HRRZ T1,BHDIPT
PCBIN4: HRRZM T1,.PBBDT(Q3) ;SAVE BDT IN PCB
MOVEI T1,KIEPT+KLPRH2*4+1 ;GET CHANNEL LOGOUT WORD
MOVEM T1,.PBRS5(Q3) ;STASH IT FOR KLIPA
RET
SUBTTL PHYSIO Interface -- KLPSIO (Start I/O)
;HERE THROUGH KLPDSP (THE CDSSIO OFFSET)
;RETURNS: +1 FAILED
; +2 SUCCESS
KLPSIO: LOAD T1,USTYP,(P2) ;GET CONTROLLER TYPE
CAIE T1,.UTHSC ;AN HSC?
CALL DSPBUG ;NO
MOVEI T1,MSCDSP ;YES, GET MSCP CONTROLLER DISPATCH VECTOR
CALLRET UDSSIO(T1) ;GO DO THE WORK
SUBTTL PHYSIO Interface -- KLPINT (Interrupt Service)
;INTERRUPT SERVICE - HERE FROM PHYINT THROUGH KLPDSP (THE CDSINT OFFSET)
;RETURNS: +1 P4/ 0 - DISMISS THE INTERRUPT
;Common use of the ACs in interrupt service
;Q1/ Node number
;Q2/ packet address
;Q3/ PCB address
;P1/ CDB address
;P2/ op code
;P3/ -1 if locally-generated, 0 if remotely-generated
;P4/ PPD byte
;P5/ system block address
KLPINT::EA.ENT ;NEED TO BE IN A NON-0 SECTION
RDTIME KLPENT ;[7.1202] Get and save current time
LOAD T1,CFSTA,(P1) ;GET PORT STATE
CALLRET @INTSTA(T1) ;TAKE APPROPRIATE ACTION
KLPIN1: CONI KLP,T1 ;GET CSR
MOVEM T1,CDBCNI(P1) ;SAVE IT
MOVE Q3,CDBPCB(P1) ;GET PCB
TXNN T1,CI.CPE!CI.MBE ;CRAM PARITY ERROR OR MBUS ERROR?
IFSKP.
MOVEI T1,CHNSTP ;YES, GET STOPPED CODE
STOR T1,CFSTA,(P1) ;SET PORT STATE
CALL REPORT ;(Q3,P1) MAKE ERROR.SYS ENTRY
CALL CPEBUG ;(Q3,P1) OUTPUT BUGXXX
CALL NONODS ;() TELL SCA ABOUT NODES GOING AWAY
CALL RSTLKS ;(Q3) RESET THE PCB QUEUE INTERLOCKS
CALL RSTRID ;() RESET REQUEST-ID DATA
MOVE T1,CDBCNI(P1) ;RETRIEVE CSR
TXNN T1,CI.CPE ;CRAM PARITY ERROR?
IFSKP.
CALL KLPCPE ;(Q3,P1) YES (KLPCPE MAY CALL KLPRQC)
ELSE.
CALL KLPMBE ;(Q3,P1) NO, MBUS ERROR (KLPRQC WON'T BE CALLED)
ENDIF.
ELSE.
;There was neither a CRAM parity error nor an MBUS error
TXNN T1,CI.RQA ;NO, RESPONSE QUEUE AVAILABLE?
IFSKP.
CALL KLPRQA ;(Q3,P1) YES, PROCESS THE PACKETS
MOVE T1,CDBCNI(P1) ;RETRIEVE THE CSR
ENDIF.
TXNE T1,CI.FQE ;FREE QUEUE ERROR?
CALL KLPFQE ;(Q3,P1) YES, FIND OUT WHICH ONE
ENDIF.
KLPIN2: SETZ P4, ;TELL PHYINT NOT TO DO ANYTHING ELSE
RDTIME T1 ;[7.1202] Get exit time
DSUB T1,KLPENT ;[7.1202] Compute time spent in interrupt routine
DADD T1,TOTKLP ;[7.1202] Accumulate overall time
DMOVEM T1,TOTKLP ;[7.1202] And save
RET
;RESPONSE QUEUE AVAILABLE
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
;NOTE: IF YOU ARE NOT AT INTERRUPT LEVEL, YOU MUST CALL THIS ROUTINE CIOFF.
;Special entry for cleaning the response queue when the port is disabled
KLPRQC: CONO KLP,CI.EPE!CI.RQA ;CLEAR RESPONSE-AVAILABLE, EBUS PARITY, DON'T ENABLE PORT
JRST KLPRQ7 ;DO THE REAL WORK
;Standard entry for processing the response queue
KLPRQA: MOVE T1,.PBPIA(Q3) ;GET PIA
CONO KLP,CI.EPE!CI.RQA!CO.BTS(T1) ;CLEAR RESPONSE-AVAILABLE, EBUS PARITY
KLPRQ7: STKVAR <QEMPT> ;QEMPT: 0=QUEUE EMPTY, -1=QUEUE NOT EMPTY
KLPRQ1: AOS CIPKRC ;[7211] COUNT THE PACKET
SETZM QEMPT ;[7211] ASSUME RESPONSE Q EMPTY AFTER THIS PACKET
MOVEI T1,.PBRQI(Q3) ;GET RESPONSE QUEUE INTERLOCK WORD
CALL REMQUE ;(T1/Q2) GET 1ST PACKET OFF THE QUEUE
JRST [BUG.(INF,KLPERQ,PHYKLP,HARD,<PHYKLP - Empty response queue>,,<
Cause: The monitor got an interrupt to remove a packet from the response
queue. The queue was empty.
>,,<DB%NND>) ;[7.1210]
RET] ;DONE
KLPRQ2: SETOM QEMPT ;QUEUE IS STILL NON-EMPTY. FLAG THAT
KLPRQ3:
IFN KLPDBG,< ;[7.1134]
ANSWER: MOVEI T1,.
HRL T1,Q2
CALL COLECT
MOVE T1,3(Q2)
CALL COLECT
MAP T1,.PBRQF(Q3)
TLZ T1,777760
CAMN T1,.PBRQF(Q3) ;empty queue?
JRST ANSWE2 ;[7.1156] yes
;Queue is non-empty
ANSWE1: MOVEI T1,.
HRL T1,.PBRQF(Q3) ;no. stash current pcb+17
CALL COLECT
SKIPL QEMPT ;empty when we pulled packet off response queue?
AOS RACES ;yes. count one
ANSWE2:> ;[7.1134] end of IFN KLPDBG
;LABEL FOR CILOOK SNOOP% CODE
CILIN:
CALL RMASAG ;Byte swap PPD byte
; ..
;We have the packet. Get the opcode and dispatch appropriately.
LDB Q1,PKYNOD ;GET NODE NUMBER
CAIL Q1,0 ;A LEGAL
CAILE Q1,MAXNDS ; NODE NUMBER?
IFNSK.
LDB T2,PKYSTS ;NO, GET STATUS FIELD
LDB T3,PKYFLG ;GET FLAGS FIELD
LDB T4,PKYOP ;GET OP CODE FIELD
BUG.(CHK,KLPNDE,PHYKLP,HARD,<PHYKLP - Packet with bad node number>,<<T2,STATS>,<T3,FLAGS>,<T4,OPC>,<Q1,NODE>>,<
Cause: CI20 driver received a packet with an invalid node number. The packet
has not been returned to a free queue.
Action: This is usually seen with bad or flakey CI20 hardware. It also be
caused by a CI20 microcode bug, but that is unlikely. Field Service
should thoroughly check out the CI20 hardware.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
NODE - node number
>,,<DB%NND>) ;[7.1210]
JRST KLPRQ6 ;TRY FOR ANOTHER PACKET
ENDIF.
MOVE P5,SBLIST(Q1) ;GET THE SYSTEM BLOCK
LDB P2,PKYOP ;GET OP CODE
;Do a sanity check on the port. The op code indicates whether the packet
;came from the other node, or we sent it out. If we sent it out,
;either there's an error, or we asked for the buffer back. If it came
;from the other node, we'd better not find the return-the-buffer bit on.
MOVE T1,.PKSTS(Q2) ;GET STATUS
TXZE P2,OP.RMT ;REMOTELY-GENERATED?
IFSKP.
SETO P3, ;NO, SAY LOCALLY-GENERATED
REPEAT 0,<
CAIL P2,OP.CKT ;SPECIAL OP CODE?
JRST KLPRQ9 ;YES. THESE COME BACK FROM OUR PORT
TXNE T1,PS.ERR ;WAS THERE AN ERROR?
JRST KLPRQ9 ;YES. THAT'S OK
TMNE <PKSCA,PKDRV>,(Q2) ;NO. DID WE ASK FOR THIS BUFFER BACK?
JRST KLPRQ9 ;YES. GOOD
LDB T4,PKYNOD ;GET NODE FIELD
BUG.(CHK,KLPUER,PHYKLP,HARD,<PHYKLP - Unexpected response received>,<<T4,NODE>,<T1,STATUS>>,<
Cause: The port placed a packet on the response queue with an opcode
indicating that the packet had been queued by this host. The status
bits don't confirm that.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: NODE - Node number
STATUS - Status word
>)
RET ;THROW AWAY THE BUFFER
> ;END OF REPEAT 0
ELSE.
SETZ P3, ;YES, NOT LOCALLY-GENERATED
REPEAT 0,<
TMNN <PKSCA,PKDRV>,(Q2) ;DO WE SEEM TO WANT A RESPONSE?
JRST KLPRQ9 ;NO. THAT'S GOOD
LDB T4,PKYNOD ;GET OP CODE FIELD
BUG.(CHK,KLPIFL,PHYKLP,HARD,<PHYKLP - Illegal flags>,<<T4,NODE>,<T1,STATUS>>,<
Cause: The response queue contains a packet whose op code indicates that the
packet was queued by a remote host. But the software response bit is
set.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: NODE - Node number
STATUS - Status word
>)
RET ;THROW AWAY THE BUFFER
> ;END OF REPEAT 0
ENDIF.
KLPRQ9: MOVSI T2,-<KLPOPL> ;MAKE AOBJN WORD FOR OPCODE SEARCH
KLPRQ4: CAMN P2,KLPOPS(T2) ;THIS THE ONE?
JRST KLPRQ5 ;YES, GO DO THE WORK
AOBJN T2,KLPRQ4 ;NO, TRY NEXT OPCODE
LDB T2,PKYSTS ;BAD OP CODE, GET STATUS FIELD
LDB T3,PKYFLG ;GET FLAGS FIELD
LDB T4,PKYNOD ;GET OP CODE FIELD
BUG.(CHK,KLPOPC,PHYKLP,SOFT,<PHYKLP - Packet with bad op-code>,<<T2,STATS>,<T3,FLAGS>,<P2,OPC>,<T4,NODE>>,<
Cause: CI20 driver received a packet with an invalid op-code. The packet has
not been returned to a free queue.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
NODE - node number
>,,<DB%NND>) ;[7.1210]
JRST KLPRQ6 ;TRY FOR ANOTHER PACKET
;.....
;All ACs are set except the PPD byte indicator
KLPRQ5: SETOM P4 ;ASSUME NO PPD BYTE
TXNN T1,PS.ERR!PS.CLO ;ERROR OR PATH CLOSED?
IFSKP.
TXNN T1,PS.ERR ;YES, WAS IT AN ERROR?
IFSKP.
CALL @KLPERB(T2) ;YES, DO ERROR PROCESSING
JRST KLPRQ6 ;GO FOR NEXT PACKET
ELSE.
CALL CLOPTH ;(T1) NO ERROR, UPDATE PATH INFO
TMNE PKSRB,(Q2) ;WERE WE EXPECTING A RESPONSE?
IFSKP.
CALL @RETCLO(T2) ;(Q2,Q3) NO, RETURN PACKET TO FREE QUEUE
JRST KLPRQ6 ;CONTINUE
ENDIF.
ENDIF.
ENDIF.
CALL @KLPROU(T2) ;PROCESS THE PACKET
KLPRQ6: SKIPE QEMPT ;IS RESPONSE Q EMPTY?
JRST KLPRQ1 ;NO, GO DO THE NEXT ONE
;***** This doesn't work, we need to fix it for testing
REPEAT 0,<
MOVE T1,.PBPIA(Q3)
CONO KLP,CI.RQA!CO.BTS(T1)
CALL REMQUE
JRST KLPRQ1
JRST KLPRQ2
JRST KLPRQ3
>
RET
ENDSV.
;CLOSED PATH - PROCESS A PACKET WITH B0 OFF AND B1 ON
;ACCEPTS: T1/ PACKET STATUS WORD
; Q1/ NODE NUMBER
; Q3/ PCB
;RETURNS: +1
;PRESERVES T1-2, Q1-3, P1-6
CLOPTH: SAVEPQ
STKVAR <<T1T2,2>,AFLAG>
DMOVEM T1,T1T2 ;PRESERVE T1,T2
TXNN T1,PS.AKA ;ACKED ON A?
IFSKP.
SETZRO IDPBO,(Q1) ;YES, B NOW CLOSED
SETZM AFLAG ;PATH B
ELSE.
SETZRO IDPAO,(Q1) ;NO, PATH A NOW CLOSED
SETOM AFLAG ;PATH A
ENDIF.
CALL KLPGDB ;(Q3/Q2) GET A BUFFER
JRST CLOPT1 ;CAN'T NOW, WE'LL HAVE TO WAIT FOR THE POLLER
MOVX T3,PF.PT0 ;ASSUME PATH A WAS CLOSED
SKIPE AFLAG ;WAS IT A?
MOVX T3,PF.PT1 ;NO, PATH B
CALL KLPRID ;(T3,Q1,Q2,Q3) SEND A REQUEST-ID
NOP ;NO SUCH RETURN
CLOPT1: DMOVE T1,T1T2 ;RETRIEVE T1,T2
RET
ENDSV.
;OPCODE LOOK UP TABLE
KLPOPS: OP.SMS ;SEND MESSAGE
OP.LPB ;SEND/RECEIVE LOOPBACK
OP.RID ;REQUEST ID
OP.IDR ;ID RECEIVED
OP.SDG ;SEND DATAGRAM
OP.RCF ;DATA CONFIRM RECEIVED
OP.RDT ;RETURN DATA (DATREC)
OP.RCT ;READ STATISTICS COUNTERS
OP.RRG ;READ REGISTER
OP.CKT ;SET VIRTUAL CIRCUIT
OP.RD1 ;REQUEST DATA ON COMMAND QUEUE 1
OP.MCR ;MAINTENANCE CONFIRM RECEIVED
OP.MDR ;MAINTENANCE DATA RECEIVED
OP.RD0 ;REQUEST DATA ON COMMAND QUEUE 0
OP.RD2 ;REQUEST DATA ON COMMAND QUEUE 2
OP.SDT ;SEND DATA
OP.RRS ;RESET REMOTE SYSTEM
OP.SRS ;START REMOTE SYSTEM
OP.RMD ;REQUEST MAINTENANCE DATA
OP.SMD ;SEND MAINTENANCE DATA
OP.SPT ;SET STATISTICS COUNTERS
OP.WRG ;WRITE REGISTER
OP.CLB ;CLOSE BUFFER
KLPOPL==.-KLPOPS ;LENGTH OF KLPOPS
;DISPATCH TABLE (PARALLEL TO KLPOPS) FOR ERROR-FREE PACKETS
KLPROU: IFIW!GIVSCA ;SEND MESSAGE
IFIW!INTLPB ;SEND/RECEIVE LOOPBACK
IFIW!INTRID ;REQUEST ID
IFIW!INTIDR ;ID RECEIVED
IFIW!INTDG ;SEND DATAGRAM
IFIW!INTNBF ;DATA CONFIRM RECEIVED
IFIW!INTNBF ;RETURN DATA (DATREC)
IFIW!INTRCT ;READ STATISTICS COUNTERS
IFIW!INTRRG ;READ REGISTER
IFIW!INTCKT ;SET VIRTUAL CIRCUIT
IFIW!INTRD1 ;REQUEST DATA ON COMMAND QUEUE 1
IFIW!INTMCR ;MAINTENANCE CONFIRM RECEIVED
IFIW!INTMDR ;MAINTENANCE DATA RECEIVED
IFIW!INTRD0 ;REQUEST DATA ON COMMAND QUEUE 0
IFIW!INTRD2 ;REQUEST DATA ON COMMAND QUEUE 2
IFIW!INTSDT ;SEND DATA
IFIW!RETDG ;RESET REMOTE SYSTEM
IFIW!RETDG ;START REMOTE SYSTEM
IFIW!RETDG ;REQUEST MAINTENANCE DATA
IFIW!RETDG ;SEND MAINTENANCE DATA
IFIW!RETDG ;SET STATISTICS COUNTERS
IFIW!RETDG ;WRITE REGISTER
IFIW!INTCLO ;CLOSE BUFFER
;DISPATCH TABLE (PARALLEL TO KLPOPS) FOR PACKETS WITH THE ERROR (B0) BIT ON
KLPERB: IFIW!GIVERR ;SEND MESSAGE
IFIW!LPBERR ;SEND/RECEIVE LOOPBACK
IFIW!RIDERR ;REQUEST ID
IFIW!RETDG ;ID RECEIVED
IFIW!DGERR ;SEND DATAGRAM
IFIW!NBFERR ;DATA CONFIRM RECEIVED
IFIW!NBFERR ;RETURN DATA (DATREC)
IFIW!RCTERR ;READ STATISTICS COUNTERS
IFIW!RRGERR ;READ REGISTER
IFIW!CKTERR ;SET VIRTUAL CIRCUIT
IFIW!RD1ERR ;REQUEST DATA ON COMMAND QUEUE 1
IFIW!MCRERR ;MAINTENANCE CONFIRM RECEIVED
IFIW!MDRERR ;MAINTENANCE DATA RECEIVED
IFIW!RD0ERR ;REQUEST DATA ON COMMAND QUEUE 0
IFIW!RD2ERR ;REQUEST DATA ON COMMAND QUEUE 2
IFIW!SDTERR ;SEND DATA
IFIW!RETDG ;RESET REMOTE SYSTEM
IFIW!RETDG ;START REMOTE SYSTEM
IFIW!RETDG ;REQUEST MAINTENANCE DATA
IFIW!RETDG ;SEND MAINTENANCE DATA
IFIW!RETDG ;SET STATISTICS COUNTERS
IFIW!RETDG ;WRITE REGISTER
IFIW!CLOERR ;CLOSE BUFFER
;DISPATCH TABLE (PARALLEL TO KLPOPS) FOR PACKETS WITH THE ERROR BIT (B0) OFF
;BUT THE CLOSED PATH BIT (B1) ON AND NO RESPONSE WAS REQUESTED
RETCLO: IFIW!RETMSG ;SEND MESSAGE
IFIW!RETDG ;SEND/RECEIVE LOOPBACK
IFIW!RETDG ;REQUEST ID
IFIW!RETDG ;ID RECEIVED
IFIW!RETDG ;SEND DATAGRAM
IFIW!RETMSG ;DATA CONFIRM RECEIVED
IFIW!RETMSG ;RETURN DATA (DATREC)
IFIW!RETDG ;READ STATISTICS COUNTERS
IFIW!RETDG ;READ REGISTER
IFIW!RETDG ;SET VIRTUAL CIRCUIT
IFIW!RETMSG ;REQUEST DATA ON COMMAND QUEUE 1
IFIW!RETDG ;MAINTENANCE CONFIRM RECEIVED
IFIW!RETDG ;MAINTENANCE DATA RECEIVED
IFIW!RETMSG ;REQUEST DATA ON COMMAND QUEUE 0
IFIW!RETMSG ;REQUEST DATA ON COMMAND QUEUE 2
IFIW!RETMSG ;SEND DATA
IFIW!RETDG ;RESET REMOTE SYSTEM
IFIW!RETDG ;START REMOTE SYSTEM
IFIW!RETDG ;REQUEST MAINTENANCE DATA
IFIW!RETDG ;SEND MAINTENANCE DATA
IFIW!RETDG ;SET STATISTICS COUNTERS
IFIW!RETDG ;WRITE REGISTER
IFIW!RETDG ;CLOSE BUFFER
;Received either 1) an application datagram or 2) a message
;RETURNS: +1
GIVSCA: SKIPE P5 ;DO WE HAVE A SB?
IFSKP.
LDB T1,PKYSTS ;NO, GET STATUS FIELD
LDB T2,PKYFLG ;GET FLAGS FIELD
BUG.(CHK,KLPIPA,PHYKLP,HARD,<PHYKLP - Invalid packet arrival>,<<T1,STATS>,<T2,FLAGS>,<P2,OPC>,<Q1,NODE>>,<
Cause: The CI20 driver has received an application packet from a node with
which it doesn't think it has ever communicated.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packcet
NODE - node number
>,,<DB%NND>) ;[7.1238]
CAIE P2,OP.SDG ;NO, IS IT A DATAGRAM?
IFSKP.
CALLRET RETDG ;YES
ELSE.
CALLRET RETMSG ;NO, A MESSAGE
ENDIF.
ENDIF.
;We have a SB
JUMPN P3,GIVSC1 ;IF LOCAL, GO TO IT
LOAD T1,SBVCST,(P5) ;GET VC STATE
CAIE T1,VC.STR ;START-RECEIVED?
JRST GIVSC1 ;NO, GO TO IT
SETZRO SBSST,(P5) ;YES, STOP TIMER
CALL OPNSCA ;(Q1,P5) TELL SCA ABOUT NEW NODE
; ..
;HAND THE PACKET TO SCA
;ACCEPTS: Q2/ PACKET ADDRESS
; P3/ 0 IF REMOTELY-GENERATED, -1 IF LOCALLY-GENERATED
; P5/ SB
;RETURNS: +1
;
;NOTE: MUST BE CALLED AT INTERRUPT LEVEL BECAUSE SCA AND THE SYSAPS ASSUME
; THEY ARE AT INTERRUPT LEVEL WHEN BEING NOTIFIED ABOUT INCOMING PACKETS.
GIVSC1: TMNN PKSCA,(Q2) ;SCA REQUEST A RESPONSE?
IFSKP.
SKIPL P3 ;YES. THIS SHOULD BE LOCAL, THEN
BUG.(INF,KLPIRP,PHYKLP,HARD,<PHYKLP - Software response bit on in remotely-generated packet>,<<Q1,NODE>,<T1,STATUS>>,<
Cause: The response queue contains a packet whose op code indicates that the
packet was queued by a remote host but the software response bit is
set.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: NODE - Node number
STATUS - Status word
>,,<DB%NND>) ;[7.1210]
MOVX P3,F.RSP ;TELL SCA THIS IS A RETURNED BUFFER
SETZRO <PKDRV,PKSCA>,(Q2) ;CLEAR ALL SOFTWARE RESPONSE BITS
ELSE.
SKIPN P3 ;NO. THIS SHOULD BE REMOTE, THEN
JRST GIVSC6 ;IT IS.
;The port shouldn't have given us this buffer. SCAMPI doesn't want it,
;so put it back on the free queue.
BUG.(INF,KLPILP,PHYKLP,HARD,<PHYKLP - Software response bit off in locally-generated packet>,<<Q1,NODE>,<T1,STATUS>>,<
Cause: The response queue contains a packet whose op code indicates that the
packet was queued by this host but the software response bit is not
set, and there was no error.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: NODE - Node number
STATUS - Status word
>,,<DB%NND>) ;[7.1238]
CAIN P2,OP.SDG ;Is this a datagram?
CALLRET RETDG ;(Q2,Q3) Yes. Give it back to the port
CALLRET RETMSG ;(Q2,Q3/) No. Put it on the message free queue
ENDIF.
;...
;...
GIVSC6: MOVE T1,.PKSTS(Q2) ;GET THE STATUS WORD
LDB T3,PKYLEN ;Get the packet length
TXNN T1,PF.FMT ;HIGH DENSITY?
IFSKP.
TXO P3,F.SPM ;YES
MOVEI T3,3(T3) ;YES, Round up byte count in case of partial word
;rounding factor = (# bytes per word) - 1
IMULI T3,2 ;Convert bytes count to word count
IDIVI T3,^D9 ; I.E. (Byte count/4.5) = word count
ENDIF.
MOVE P2,Q2 ;PACKET ADDRESS
MOVE P4,P5 ;SB ADDRESS
BLCAL. (SC.INT,<P3,T3>) ;(P2,P4) Tell SCA, give the flags and packet length
RET
;WE GOT A PACKET FOR SCA WITH AN ERROR
;ACCEPTS:
;RETURNS: +1
GIVERR: JUMPE P3,GIVER1 ;IF REMOTELY-GENERATED, WE'RE DONE
TMNE PKSCA,(Q2) ;LOCALLY-GENERATED, RESPONSE REQUESTED?
IFSKP.
;Error in a remotely-generated packet, or
;in a locally-generated packet and no response requetsed
GIVER1: CAIN P2,OP.SDG ;IS IT A DATAGRAM?
CALLRET RETDG ;YES, RETURN IT TO FREE Q
CALL SCAERR ;(Q1,Q2,Q3,P5) NO, A MESSAGE. REPORT THE FAILURE
CALLRET RETMSG ;RETURN IT TO FREE Q
ENDIF.
;Error in locally-generated packet and a response was requested
CAIN P2,OP.SMS ;IS IT A MESSAGE?
CALL SCAERR ;(Q1,Q2,Q3,P5) YES, SPEAR ENTRY, TELL SCA
CALLRET GIVSC1 ;(Q2,P3,P5) GIVE PACKET TO SCA
;WE HAVE A PACKET FOR SCA WITH AN ERROR
;ACCEPTS: Q1/ NODE NUMBER
; Q2/ PACKET ADDRESS
; Q3/ PCB
; P1/ CDB
; P5/ SB
;RETURNS: +1
SCAERR: LOAD T1,SBVCST,(P5) ;GET VC STATE
CAIE T1,VC.OPN ;VC OPEN?
RET ;NO, DON'T NEED TO REPORT ANYTHING
TRVAR <IBFLG> ;INVALID BUFFER NAME FLAG
SETZM IBFLG ;ASSUME NOT INVALID BUFFER NAME
LOAD T1,.PKSFD,(Q2) ;YES, GET ERROR CODE
CAIN T1,PS.IBN ;INVALID BUFFER NAME ERROR?
SETOM IBFLG ;YES, SET THE FLAG
LOAD T1,CDVER,(P1) ;GET UCODE VERSION
LDB T2,PKYSTS ;YES, GET STATUS FIELD
LDB T3,PKYFLG ;GET FLAGS FIELD
LDB T4,PKYOP ;GET OPCODE
SKIPN IBFLG ;INVALID BUFFER NAME?
IFSKP.
SKIPE CIBUGX ;YES, NOT REALLY INTERESTING
BUG.(INF,KLPIBN,PHYKLP,SOFT,<PHYKLP - Invalid buffer name>,<<T2,STATS>,<T3,FLAGS>,<T4,OPC>,<Q1,NODE>>,<
Cause: The CI20 driver received a packet (message or named buffer) with an
Invalid Buffer Name error.
Action: If this bug is reproducable, change it to a BUGHLT, and send in an SPR
with the dump and how to reproduce it.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
NODE - node number
>,,<DB%NND>) ;[7.1210]
RET
ENDIF.
BUG.(INF,KLPERR,PHYKLP,SOFT,<PHYKLP - CI packet error>,<<T2,STATS>,<T3,FLAGS>,<T4,OPC>,<Q1,NODE>>,<
Cause: The CI20 driver received a packet (message or named buffer) with an
error. This causes the virtual circuit to be closed. This is usually
caused by a node on CI shutting down.
Action: No action required. This bug is for information only.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
NODE - node number
>,,<DB%NND>) ;[7.1210]
SAVEAC <Q2>
SETZB Q2,P4 ;WE NEED A BUFFER TO DO THE SET CIRCUIT
CALL CLOSV1 ;(Q2,P4,P5/) CLOSE THE VC AND TELL SCA
RET
ENDTV.
;Received a DATAGRAM
;RETURNS: +1
INTDG: CALL CHKPPD ;(/P4) CHECK THE PPD BYTE
CALLRET RETDG ;(Q2,Q3) BAD PPD, RETURN PACKET TO FREE QUEUE
CALLRET @DGDSP(P4) ;GO PROCESS THE PACKET
DGDSP: IFIW!INTSTR ;START
IFIW!INTSTK ;STACK
IFIW!INTACK ;ACK
IFIW!GIVSCA ;APPLICATION DATAGRAM
IFIW!CHKPP1 ;APPLICATION MESSAGE (OPCODE/PPD BYTE MISMATCH)
IFIW!INTERP ;ERROR PACKET
IFIW!INTSHT ;SHUTDOWN
;Received a DATAGRAM with an error
;RETURNS: +1
DGERR: CALL CHKPPD ;(/P4) CHECK THE PPD BYTE
CALLRET RETDG ;(Q2,Q3) BAD PPD, RETURN PACKET TO FREE QUEUE
CALLRET @DGEDSP(P4) ;GO PROCESS THE PACKET
DGEDSP: IFIW!RETDG ;START
IFIW!RETDG ;STACK
IFIW!RETDG ;ACK
IFIW!GIVERR ;APPLICATION DATAGRAM
IFIW!CHKPP1 ;APPLICATION MESSAGE (OPCODE/PPD BYTE MISMATCH)
IFIW!ERPERR ;ERROR PACKET
IFIW!RETDG ;SHUTDOWN THAT FAILED.
;Received an ERROR-LOG Packet
;ACCEPTS: Q2/ PACKET ADDRESS
; Q3/ PCB
;RETURNS: +1
KELEN==:100 ;SPACE FOR BUILDING SEBPTR WORDS ON STACK
INTERP: STKVAR <EBLOK,WORDS,<KETAB,KELEN>>
AOS HSCELP ;[7211] COUNT THE PACKET
LDB T1,PKYLEN ;GET NUMBER OF BYTES IN ERROR LOG MESSAGE
ADDI T1,3 ;CALCULATE NUMBER OF
IDIVI T1,4 ; WORDS NEEDED FOR MESSAGE
ADDI T1,KE%LEN+1 ;ADD LENGTH OF EVENT DATA PLUS ENTRY TYPE WORD
MOVEM T1,WORDS ;SAVE IT
MOVE T2,T1 ;NO ADDITIONAL STRING
; ...
; ...
CALL ALCSEB ;(T1,T2/T1) TRY TO GET ERROR BLOCK
IFNSK.
BUG.(INF,KLPELL,PHYKLP,SOFT,<PHYKLP - Error Log Lost>,,<
Cause: Can't get free space to create ERROR.SYS entry for ERROR LOG MESSAGE.
This may happen if there have been a large number of bugs or hardware
errors before this one.
Action: If this bug is reproducable, change it to a BUGHLT, and send in an SPR
with the dump and how to reproduce it.
>)
JRST INTER1 ;MOVE ON
ENDIF.
MOVEM T1,EBLOK ;SAVE LOC OF ERROR BLOCK
MOVEI T2,KLPRH2 ;GET KLIPA CHANNEL #
STOR T2,KECHN ;STORE IT
LDB T2,PKYNOD ;GET NODE #
STOR T2,KENOD ;STORE IT
SETZ P3, ;MAKE COUNTER FOR TABLE ENTRIES
MOVEI T2,KETAB ;GET TABLE BEGINNING
MOVE P4,[SEBPTR 0,SBTEVC,SEC%KE] ;ENTRY TYPE WORD
MOVEM P4,(T2) ;PUT IT IN TABLE
AOS P3 ;BUMP COUNTER
AOS T2 ;BUMP LOCATION
MOVE P4,[SEBPTR KE%SRC,SBTWD,SRC246] ;ENTRY DATA WORD
MOVEM P4,(T2) ;PUT ITEM IN TABLE
AOS P3 ;BUMP COUNTER
AOS T2 ;BUMP LOCATION
MOVE P4,[SEBPTR KE%ELG,SBTWD,.PKLEN+1(P3)] ;ERROR LOG MESSAGE POINTER
INTER3: MOVEM P4,(T2) ;PUT IT IN TABLE
AOS P3 ;BUMP COUNTER
AOS T2 ;BUMP LOCATION
CAML P3,WORDS ;DONE?
JRST INTER2 ;YES
INCR SEBOFS,P4 ;NO, FIX DESTINATION
INCR SEBDPT,P4 ; AND SOURCE
CAIGE P3,KELEN ;MORE ROOM ON STACK?
JRST INTER3 ;YES, ADD NEXT ENTRY
BUG.(INF,KLPELT,PHYKLP,SOFT,<PHYKLP - Error Log Truncated>,,<
Cause: An ERROR LOG MESSAGE has been truncated in its ERROR.SYS entry. This
may happen if there have been a large number of bugs or hardware errors
before this one.
Action: If this bug is reproducable, change it to a BUGHLT, and send in an SPR
with the dump and how to reproduce it.
>,,<DB%NND>) ;[7.1210]
INTER2: MOVN T2,P3 ;GET NEGATIVE OF TABLE LENGTH WE BUILT ON STACK
HRLS T2 ;POSITION IT
HRRI T2,KETAB ;GET THE TABLE ADDRESS
MOVE P3,Q2 ;SEBCPY USES Q2 INTERNALLY
CALL SEBCPY ;(T1,T2)
JFCL
MOVE T1,EBLOK ;RETRIEVE ERROR BLOCK
CALL QUESEB ;(T1) HAND IT TO SPEAR
INTER1: CALLRET RETDG ;(Q2,Q3) RETURN TO DG FREE Q
ENDSV.
;Received an ERROR-LOG Packet with an error
;RETURNS: +1
ERPERR: LDB T2,PKYSTS ;GET STATUS FIELD
LDB T3,PKYFLG ;GET FLAGS FIELD
BUG.(CHK,KLPEPB,PHYKLP,SOFT,<PHYKLP - Error logging packet is bad>,<<T2,STATS>,<T3,FLAGS>,<P2,OPC>,<Q1,NODE>>,<
Cause: TOPS-20 received an error-logging packet (PPD byte 5) which had an
error. The packet is returned immediately to the free queue. Whatever
information it carried is lost.
Action: The CI node that sent the packed may be having serious problems and
should be checked out. The node number is the final additional data
word.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
NODE - node number
>,,<DB%NND>) ;[7.1210]
CALLRET RETDG ;(Q2,Q3) RETURN PACKET FO FREE QUEUE
;Received a START
;RETURNS: +1
INTSTR: SKIPE P5 ;SB EXIST?
IFSKP.
SKIPE RIDTIM(Q1) ;NO, HAVE AN OUTSTANDING REQUEST-ID?
CALLRET RETDG ;YES, ONE'S ENOUGH
CALL GTCPTH ;(T1/T3) NO, GET CURRENT PATH
CALL KLPRID ;(T3,Q1,Q2,Q3) SEND A REQUEST ID IN THIS PACKET
NOP ;NO SUCH RETURN
RET
ENDIF.
CALL FILLSB ;(Q2,P5) COPY INFO TO SB
LOAD T1,SBVCST,(P5) ;GET VC STATE
CALLRET @STRDSP(T1) ;GO DO THE WORK
STRDSP:
IFIW!RETDG ;CLOSED
IFIW!STRSSN ;START-SENT
IFIW!STRSTR ;START-RECEIVED
IFIW!STROPN ;OPEN
;Received a START when in either START-SENT or START-RECEIVED state.
;Reset the timer, new state is START-RECEIVED, and send a STACK.
;RETURNS: +1
STRSSN: CALL KLPOPN ;(Q1,Q2,Q3) TELL PORT TO OPEN ITS CIRCUIT
NOP ;NO SUCH RETURN
CALL KLPGDB ;(Q3/Q2) GET A DATAGRAM BUFFER
JRST STRST1 ;OK, JUST LIKE THE STACK GETTING LOST
STRSTR: MOVEI T1,PP.STK ;GET STACK CODE
CALL STRTDT ;(T1,Q2) MAKE A STACK
CALL KLPSDG ;(Q1,Q2,Q3) SEND IT
NOP
STRST1: MOVEI T1,VC.STR ;GET START-RECEVIED CODE
STOR T1,SBVCST,(P5) ;UPDATE STATE
CALL STSST ;(P5) SET TIMER
RET
;Received a START when in OPEN state.
;Close VC and inform SCA of the departure
STROPN: BUG.(INF,KLPSWO,PHYKLP,SOFT,<PHYKLP - Received a START when VC was open>,<<Q1,NODE>>,<
Cause: TOPS-20 has closed a virtual circuit because it received a START packet
while the circuit was open. This happens when a CI node
(specifed in the addtional data) crashes and sends a START to this
system. For example this is seen when a HSC50 breaks the connection
and then reconnects to this TOPS-20 system. The VC is reopened shortly.
Action: No action is required, as this is an information only BUG.
Data: NODE - node number
>,,<DB%NND>) ;[7.1210]
SETZ P4,
CALL CLOSV1 ;(Q2,P4,P5/) CLOSE THE VC AND TELL SCA
RET
;COPY INFO FROM START/STACK TO SB
;ACCEPTS: Q2/ PACKET ADDRESS
; P5/ SB ADDRESS
;RETURNS: +1
FILLSB: MOVEI T1,.SBDPC-.SBDSS ;AMOUNT OF DATA TO MOVE
XMOVEI T2,.SRSSY(Q2) ;FROM THE PACKET
MOVEI T3,.SBDSS(P5) ;TO THE SYSTEM BLOCK
EXTEND T1,[XBLT] ;FILL IN THE DATA
MOVE T1,.SBMMS(P5) ;GET SIZE WORD FROM SB
CALL REVFUL ;REVERSE THE BYTES TO MAKE THEM MEANINGFUL
MOVEM T1,.SBMMS(P5) ;PUT MAX MESSAGE/DG SIZE INTO SYSTEM BLOCK
RET
;Received a STACK
;RETURNS: +1
INTSTK: CALL FILLSB ;(Q2,P5) COPY INFO TO SB
LOAD T1,SBVCST,(P5) ;NO, GET VC STATE
CALLRET @STKDSP(T1) ;GO DO THE WORK
STKDSP: IFIW!RETDG ;CLOSED
IFIW!STKSTS ;START-SENT
IFIW!STKSTR ;START-RECEIVED
IFIW!STKOPN ;OPEN
;Received a STACK when in START-SENT or START-RECEIVED state.
;Stop timer, send ACK, open VC, new state is OPEN.
;RETURNS: +1
STKSTS: CALL KLPOPN ;(Q1,Q2,Q3) TELL PORT TO OPEN ITS CIRCUIT
NOP ;NO SUCH RETURN
CALL KLPGDB ;(Q3/Q2) GET A DATAGRAM BUFFER
JRST STKST1 ;OK, JUST LIKE ACK GETTING LOST
STKSTR: MOVEI T1,PP.ACK ;GET ACK CODE
DPB T1,PKYPPD ;PUT IT IN
CALL KLPSDG ;(Q1,Q2,Q3) SEND IT
NOP ;NO SUCH RETURN
STKST1: SETZRO SBSST,(P5) ;TURN OFF THE TIMER
CALLRET OPNSCA ;(Q1,P5) TELL SCA ABOUT THE NEW NODE
;Received a STACK when in OPEN state.
;Send an ACK.
STKOPN: MOVEI T1,PP.ACK ;GET ACK CODE
DPB T1,PKYPPD ;PUT IT IN
CALL KLPSDG ;(Q1,Q2,Q3) SEND IT
NOP ;NO SUCH RETURN
RET
;Received an ACK
;ACCEPTS: T2/ FLAGS
; Q1/ SB ADDRESS
; Q2/ PACKET ADDRESS
;RETURNS: +1
INTACK: LOAD T1,SBVCST,(P5) ;GET STATE OF VC
CALLRET @ACKDSP(T1) ;GO DO THE WORK
ACKDSP: IFIW!RETDG ;CLOSED
IFIW!RETDG ;START-SEND
IFIW!ACKSTR ;START-RECEIVED
IFIW!RETDG ;OPEN
;Received an ACK when in START-RECEIVED state.
;Stop timer and set state to OPEN.
ACKSTR: SETZRO SBSST,(P5) ;TURN OFF THE TIMER
CALLRET OPNSCA ;(Q1,P5) TELL SCA ABOUT THE NEW NODE
;Received a shutdown. We don't care what state we were in because
;CLOSVC won't try to do anything if the v.c. isn't open.
INTSHT: BUG.(INF,KLPRSH,PHYKLP,SOFT,<PHYKLP - Received shutdown message>,<<Q1,NODE>>,<
Cause: A CI node has notified our node that it is closing our virtual circuit.
The additional data specifies which node has notifed us.
Action: No action is required, as this is an information only BUG.
Data: NODE - Node number
>,,<DB%NND>) ;[7.1210]
SETZM P4 ;INDICATE WE WANT A SET CIRCUIT DONE
CALL CLOSV1 ;(Q2,P4,P5/) CLOSE THE V.C. AND TELL SCA
RET
;TELL SCA A NODE HAS COME ON LINE (A VC IS NOW OPEN)
;ACCEPTS: Q1/ NODE NUMBER
; P5/ SYSTEM BLOCK
;RETURNS: +1
OPNSCA: BUG.(INF,KLPOVC,PHYKLP,SOFT,<PHYKLP - Opened virtual circuit>,<<Q1,NODE>>,<
Cause: TOPS-20 has opened a virtual circuit to a remote node on the CI.
Action: No action is required, as this is an information only BUG.
Data: NODE - CI node number we just opened the virtual circuit to
>,,<DB%NND>) ;[7.1210]
MOVEI T1,VC.OPN ;GET OPEN CODE
STOR T1,SBVCST,(P5) ;SET NEW VC STATE
SETZRO SBOKO,(P5) ;NO LONGER OK TO OPEN THE VC
BLCAL. (SC.ONL,<Q1>) ;TELL SCA ABOUT NEW NODE
NOP ;SOMETHING WRONG
RET
;Check the PPD byte
;RETURNS: +1 BAD
; +2 OK
CHKPPD: LDB P4,PKYPPD ;GET PPD BYTE
CAIL P4,PP.STA ;LEGAL
CAILE P4,PP.MAX ; PPD BYTE?
IFNSK.
;Special entry point for opcode/PPD mismatch
CHKPP1: LDB T2,PKYSTS ;NO, GET STATUS FIELD
LDB T4,PKYOP ;GET OP CODE FIELD
LDB T1,PKYNOD ;GET NODE NUMBER FIELD
BUG.(CHK,KLPPPD,PHYKLP,SOFT,<PHYKLP - Packet with bad PPD byte>,<<T2,STATS>,<T4,OPC>,<T1,NODE>,<P4,PPD>>,<
Cause: The CI20 driver received a packet with an invalid PPD byte. The packet
has not been returned to a free queue.
Action: This may be caused by a CI20 microcode bug or by flakey hardware.
Field Service should check the CI20 hardware.
Data: STATS - Status field of packet
OPC - op code field of packcet
NODE - node number
PPD - PPD byte
>,,<DB%NND>) ;[7.1210]
RET
ENDIF.
RETSKP ;IT'S GOOD
;Received a CONFIRM or a DATA RECEIVED
;RETURNS: +1
INTNBF: CAMN P3,[-1] ;LOCALLY-GENERATED?
CALLRET RETMSG ;(Q2,Q3) YES, GIVE PACKET BACK TO FREE QUEUE
DMOVE T1,.PKXID(Q2) ;NO, T1=BUFFER NAME, T2=CID
MOVE P4,P5 ;Get address of system block
CALL SC.DMA ;(T1,T2,P4) TELL SCA
MOVE T1,Q2 ;POSITION BUFFER ADDRESS
CALLRET SC.RBF ;(T1) GIVE BUFFER TO SCA POOL
;Received a REQUEST-ID
;ACCEPTS: Q1/ NODE
; Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
;Special entry point for RIDERR
INTRER: SAVEAC <T1,T2>
;Normal entry point through dispatch table
INTRID: SETZRO PKSRB,(Q2) ;CLEAR ALL SOFTWARE RESPONSE BITS
CALL RETDG ;(Q2,Q3) RETURN THE BUFFER
SETZRO IDWFR,(Q1) ;NO LONGER WAITING FOR RESPONSE FROM OUR PORT
; (THIS WAS 2ND TRY)
RET
;Received a REQUEST-ID with an error
;ACCEPTS: T1/ PACKET STATUS WORD
; Q1/ NODE
; Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
RIDERR: SETZM RIDTIM(Q1) ;TURN OFF TIMER
SETZRO <IDTRY,IDMAI,IDNOR>,(Q1) ;RESET 2ND TRY, NO-ANSWER, MAINT.
LDB T2,PKYSTS ;GET STATUS FIELD FROM PACKET
CALL INTRER ;(Q1,Q2,Q3) GIVE BACK THE BUFFER
TXNN T1,PF.PT0 ;TRIED ON PATH A?
JRST RIDERB ;NO
;Failed on A
CAIE T2,PS.NRA ;N-R ON A?
JRST RIDER1 ;NO
;No-Response on A
TMNE IDNRA,(Q1) ;WAS IT THAT WAY LAST TIME?
RET ;YES, NO CHANGE IN STATUS
SETONE IDNRA,(Q1) ;NO, CHANGE ITS STATUS
CALLRET PHYSTC ;() TELL DISK SERVICE ABOUT STATUS CHANGE
;Other than No-Response on A
RIDER1: TMNN IDNRA,(Q1) ;WAS IT PREVIOUSLY N-R?
RET ;NO, NO CHANGE IN STATUS
SETZRO IDNRA,(Q1) ;YES, CHANGE ITS STATUS
CALLRET PHYSTC ;() TELL DISK SERVICE ABOUT STATUS CHANGE
;Failed on B
RIDERB: CAIE T2,PS.NRB ;N-R ON B?
JRST RIDER2 ;NO
;No-Response on B
TMNE IDNRB,(Q1) ;WAS IT THAT WAY LAST TIME?
RET ;YES, NO CHANGE IN STATUS
SETONE IDNRB,(Q1) ;NO, CHANGE ITS STATUS
CALLRET PHYSTC ;() TELL DISK SERVICE ABOUT STATUS CHANGE
;Other than No-Response on B
RIDER2: TMNN IDNRB,(Q1) ;WAS IT PREVIOUSLY N-R?
RET ;NO, NO CHANGE IN STATUS
SETZRO IDNRB,(Q1) ;YES, CHANGE ITS STATUS
CALLRET PHYSTC ;() TELL DISK SERVICE ABOUT STATUS CHANGE
;CHECK FOR AN OPEN VC
;ACCEPTS: P5/ SB (OR 0)
;RETURNS: +1 VC OPEN
; +2 NO OPEN VC
CHKVCO: SKIPN P5 ;HAVE A SB?
RET ;NO
LOAD T2,SBVCST,(P5) ;GET VC STATE
CAIE T2,VC.OPN ;OPEN?
RET ;NO
RETSKP ;YES
;Received an IDREC
;ACCEPTS: T1/ PACKET STATUS WORD
; Q1/ NODE
; Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
INTIDR: STKVAR <WFIFL,IDPKT,FLGKL>
SETZRO <IDTRY,IDNOR>,(Q1) ;RESET SECOND TRY AND NO-ANSWER-COUNTER
SETZM RIDTIM(Q1) ;TURN OFF REQUEST ID TIMER
SETZM WFIFL ;INIT THE WFI FLAG
SETZM FLGKL ;ASSUME REMOTE IS NOT A KL
TXNN T1,PF.PT0 ;ARRIVED ON PATH A?
JRST INTIDB ;NO
;Path A
CALL CHKVCO ;HAVE AN OPEN VC?
JRST INTID1 ;NO, MOVE ON
TMNE IDPAO,(Q1) ;YES, PATH A ALREADY OPEN?
JRST INTID1 ;YES, MOVE ON
MOVEM Q2,IDPKT ;NO, PRESERVE INCOMING PACKET ADDR
CALL KLPGDB ;(Q3/Q2) GET A BUFFER FOR THE SET-CIRCUIT
JRST INTID4 ;BETTER LUCK NEXT TIME
MOVX T3,CK.LPT!CK.PGD ;TELL PORT TO
MOVEM T3,.PKCKT(Q2) ; OPEN PATH A
CALL KLPSCK ;(Q1,Q2,Q3)
NOP ;NO SUCH RETURN
SETONE <IDPAO,IDPBO>,(Q1) ;BOTH PATHS ARE NOW OPEN
INTID4: MOVE Q2,IDPKT ;RETRIEVE INCOMING PACKET ADDR
INTID1: TMNN IDNRA,(Q1) ;WAS IT PREVIOUSLY N-R?
JRST INTID2 ;NO
SETZRO IDNRA,(Q1) ;YES, NOT ANY MORE
JRST INTID3 ;ONWARD
;Path B
INTIDB: CALL CHKVCO ;HAVE AN OPEN VC?
JRST INTID6 ;NO, MOVE ON
TMNE IDPBO,(Q1) ;PATH B ALREADY OPEN?
JRST INTID6 ;YES, MOVE ON
MOVEM Q2,IDPKT ;NO, PRESERVE INCOMING PACKET ADDR
CALL KLPGDB ;(Q3/Q2) GET A BUFFER FOR THE SET-CIRCUIT
JRST INTID5 ;BETTER LUCK NEXT TIME
MOVX T3,CK.LPT!CK.PGD ;NO, TELL PORT TO
MOVEM T3,.PKCKT(Q2) ; OPEN PATH B
CALL KLPSCK ;(Q1,Q2,Q3)
NOP ;NO SUCH RETURN
SETONE <IDPAO,IDPBO>,(Q1); BOTH PATHS ARE NOW OPEN
INTID5: MOVE Q2,IDPKT ;RETRIEVE INCOMING PACKET ADDR
INTID6: TMNN IDNRB,(Q1) ;WAS IT PREVIOUSLY N-R?
JRST INTID2 ;NO
SETZRO IDNRB,(Q1) ;YES, NOT ANY MORE
INTID3: CALL PHYSTC ;() TELL DISK SERVICE ABOUT STATUS CHANGE
; ..
; ..
;For an understanding of the following code, refer to the comments at OPENVC
INTID2: MOVX T1,IDMAI ;GET MAINTENANCE STATE
IORM T1,RIDSTS(Q1) ;ASSUME IT
TMNN PKMAI,(Q2) ;IT IS REALLY?
ANDCAM T1,RIDSTS(Q1) ;NO
LOAD T1,PKTYP,(Q2) ;YES, GET NODE TYPE
CAIN T1,ID.KL ;IS IT A KL?
SETOM FLGKL ;YES
SKIPN P5 ;NO, HAVE A SB?
IFSKP.
;We have heard from this node before
MOVE T1,.PKPST(Q2) ;YES. GET THE NODE'S STATE
MOVEM T1,.SBDPS(P5) ;STORE IT IN THE SB
LOAD T1,SBVCST,(P5) ;GET VC STATE
SKIPN FLGKL ;IS IT A KL?
IFSKP.
TMNN PKMAI,(Q2) ;YES, IS KL'S PORT IN MAINTENANCE STATE?
ANSKP.
;KL node is in maintenance state
CAIN T1,VC.CLO ;YES, VC CLOSED?
CALLRET RETDG ;(Q2,Q3/) YES, DONE
SETZ P4, ;NO, NEED TO SO SET-CIRCUIT
CALLRET CLOSV1 ;(Q2,P4,P5/) CLOSE VC
ENDIF.
CAIE T1,VC.CLO ;NO, VC CLOSED?
CALLRET RETDG ;(Q2,Q3) NO, GIVE BACK BUFFER AND RETURN
SETZRO SBWFI,(P5) ;YES, NO LONGER WAITING FOR AN IDREC
SETOM WFIFL ;SAY WE TURNED IT OFF
TMNE SBNTC,(P5) ;STILL NEED TO CLOSE?
CALLRET RETDG ;(Q2,Q3) YES, GIVE BACK BUFFER AND RETURN
TMNN SBOKO,(P5) ;IS IT OK TO OPEN THIS VC?
CALLRET RETDG ;(Q2,Q3) NO, GIVE BACK BUFFER AND RETURN
ENDIF.
SKIPE FLGKL ;IS IT A KL?
IFSKP.
CALL STARMT ;NO, CHECK FOR A START REMOTE COMMAND
LDB T1,[POINT PKSPST,.PKPST(Q2),PKPPST] ;GET OTHER PORT'S STATE
CAIE T1,PS.ENB ;ENABLED?
CALLRET RETDG ;(Q2,Q3) NO, GIVE BACK BUFFER AND RETURN
ENDIF.
SKIPE P5 ;IS THIS THE FIRST RESPONSE FROM THIS NODE?
IFSKP.
;First time we've heard from this node
CALL BLDSBK ;(Q1,Q2,Q3,P1/P5) YES, BUILD A SB
IFNSK.
SKIPN WFIFL ;CAN'T NOW, DID WE TURN OFF SBWIF?
CALLRET RETDG ;NO, GIVE BACK BUFFER AND RETURN
SETONE SBWFI,(P5) ;YES, TURN IT BACK ON SO ONCE-A-SECOND
; CODE MIGHT GET OUT A REQUEST-ID SOON
CALLRET RETDG ;(Q2,Q3) GIVE BACK BUFFER AND RETURN
ENDIF.
SKIPN FLGKL ;IS IT A KL?
IFSKP.
TMNE PKMAI,(Q2) ;YES, IS KL'S PORT IN MAINTENANCE STATE?
CALLRET RETDG ;(Q2,Q3/) YES, WE'RE DONE
ENDIF.
ENDIF.
CALLRET SNDSTA ;(Q1,Q2,Q3,P5) SEND A START
ENDSV.
;ROUTINE TO BUILD A SYSTEM BLOCK
;ACCEPTS:
; Q1/NODE NUMBER
; Q2/ Address of packet containing answer to REQID
; Q3/PCB ADDRESS
; P1/CDB ADDRESS
; CALL BLDSBK
;RETURNS +1: FAILURE
; +2: SUCCESS,
; P5/ADDRESS OF SYSTEM BLOCK
BLDSBK: MOVEI T1,.SBLEN ;GET CORE FOR SYSTEM BLOCK (KDB)
CALL PHYALC ;RESERVE SPACE
RET ;RETURN IF NO SPACE FOUND
MOVEM T1,P5 ;SAVE ADDRESS IN PROPER AC
MOVE T1,P1
ADD T1,Q1 ;POINT T1 AT RIGHT UNIT (KDB) SLOT IN CDB
MOVEM P5,CDBUDB(T1) ;SAVE ADDR OF KDB
MOVEI T1,.BTKDB ;MARK AS KDB
DPB T1,[POINT XSSTYP,UDBSTS(P5),XSPTYP]
MOVX T1,.UTNOD ;GET DEFAULT UNIT TYPE
STOR T1,USTYP,(P5) ;PUT IT IN KDB
MOVEI T1,KLDSP ;GET DEFAULT CONTROLLER/UNIT DISPATCH VECTOR
MOVEM T1,KDBDSP(P5) ;PUT IT IN KDB
MOVSI T1,-PRTMXU ;SET UP AOBJN INDEX LH
HRRI T1,KDBUDB(P5) ;MAKE RH POINT TO UDB ENTRIES IN KDB
MOVEM T1,KDBIUN(P5) ;INITIAL POINTER
MOVEM T1,KDBCUN(P5) ;CURRENT POINTER
HRLI P5,MSEC1 ;[7.1037]STORE ADDRESS AS SECTION 1 FOR SCAMPI
MOVEM P5,SBLIST(Q1) ;SAVE SYS BLOCK ADDR IN TABLE INDEXED BY NODE
MOVEI T2,CDBSBS-.SBANB(P1) ;START AT PCB
BLDSB1: SKIPN T3,.SBANB(T2) ;NEXT SYSTEM BLOCK EXIST?
JRST BLDSB2 ;NO
MOVE T2,T3 ;YES. FOLLOW CHAIN
JRST BLDSB1
;.....
BLDSB2: MOVEM P5,.SBANB(T2) ;POINT PREDECESSOR AT THIS SYSTEM BLOCK
SETZM .SBANB(P5) ;NO NEXT SYSTEM BLOCK
MOVEM P1,.SBACD(P5) ;SAVE CDB ADDRESS IN SB
MOVEI T1,.SBFCB(P5) ;POINTER TO LAST CONNECTION BLOCK
MOVEM T1,.SBLCB(P5) ;IN BLINK OF SB
SETZM .SBFCB(P5) ;CLEAR FLINK OF CBS IN SB
MOVEI T1,.SBQOR-QORLNK(P5) ;POINT QOR WORD AT ITSELF
HRLS T1 ; (EMPTY LIST)
MOVEM T1,.SBQOR(P5) ;NO OUTSTANDING REQUESTS
HRLI T1,KLPRH2 ;GET CHANNEL NUMBER
HRR T1,Q1 ;AND NODE NUMBER
MOVEM T1,.SBDSP(P5) ;SAVE CHANNEL,,PORT NUMBER
MOVEM Q3,.SBAPB(P5) ;POINT SYSTEM BLOCK AT PCB
MOVEI T1,.PBDFI(Q3) ;DATAGRAM FREE-QUEUE LOC
MOVEM T1,.SBDRQ(P5) ;SAVE
MOVE T1,.PKMID(Q2) ;TYPE OF NODE
MOVEM T1,.SBDPC(P5) ;SAVE IT IN SYSTEM BLOCK
MOVE T1,.PKCOD(Q2) ;GET PORT CODE REVISION
MOVEM T1,.SBDCR(P5) ;SAVE IN SYSTEM BLOCK
MOVE T1,.PKFUN(Q2) ;PORT FUNCTIONALITY
MOVEM T1,.SBDPF(P5) ;SAVE IN SYSTEM BLOCK
MOVE T1,.PKPST(Q2) ;GET PORT STATE
MOVEM T1,.SBDPS(P5) ;SAVE IN SYSTEM BLOCK
XMOVEI T3,.SBTWQ(P5) ;GET ADDR OF WORK QUEUE FLINK
MOVEM T3,.SBBWQ(P5) ;INIT BLINK AS FLINK
SETZM .SBTWQ(P5) ;INIT FLINK AS ZERO
SETZM .SBLMB(P5) ;ZERO THE SCA MESSAGE FLOW CONTROL WORD
RETSKP
;ROUTINE TO CHECK IF A START REMOTE COMMAND HAS BEEN REQUESTED FOR A
;REMOTE NODE. IF THIS NODE WANTS TO START A REMOTE NODE, BUT IT WAS
;NOT THE LAST NODE TO RESET THE REMOTE NODE, THEN THE START REMOTE
;COMMAND WILL NOT BE ISSUED AND DATA IN RIDSTS FOR THE START REMOTE
;WILL BE CLEARED. IN THIS CASE, THE COMMAND IS NOT ISSUED BECAUSE THE
;REMOTE NODE WOULD NOT USE IT.
STARMT: SAVEQ
TMNN IDSTA,(Q1) ;START REMOTE COMMAND WANTED?
IFSKP.
LOAD T1,PKPRST,(Q2) ;YES. GET REMOTES NODE'S STATE
CAIE T1,PS.UMS ;IS IT UNINITIALIZED MAINTENANCE?
IFSKP.
MOVE T1,CHNTAB+KLPRH2 ;YES. GET CDB ADDRESS
MOVE T1,CDBNOD(T1) ;GET OUR NODE NUMBER
LOAD T2,PKPRND,(Q2) ;GET THE RESETING NODE
CAMN T1,T2 ;DID THIS NODE DO THE LAST RESET?
IFSKP.
BUG.(INF,KLPSRM,PHYKLP,SOFT,<PHYKLP - Cannot start remote node>,<<T1,HOST NODE>,<T2,RESET NODE>,<Q1,REMOTE NODE>>,<
Cause: This node wanted to start a remote HSC node, but it is not the node
that did the last RESET REMOTE on the remote HSC. This can happen with
multiple KLs on the same CI as an HSC.
Action: No action is required, as this is an information only BUG.
Data: HOST NODE - The node number of this system
RESET NODE - The node number that last reset the remote node
REMOTE NODE - The remote's node number.
>,,<DB%NND>) ;[7.1210]
ELSE.
CALL PPDGDB ;YES. DO THE START REMOTE. GET BUFFER.
IFSKP.
LOAD Q3,IDSAD,(Q1) ;HAVE BUFFER. NOW,GET STARTING ADDRESS.
HRL Q3,Q3 ;PUT IT IN LEFT HALF.
HRLI Q1,KLPRH2 ;SET CHANNEL NUMBER
HRRI Q3,777777 ;SET TO -1 FOR PPDSRS
CALL PPDSRS ;ISSUE THE START REMOTE COMMAND
ENDIF.
ENDIF.
HRRZ Q1,Q1 ;GET JUST THE NODE NUMBER
SETZRO <IDSTA,IDRST,IDSAD>,(Q1) ;CLEAR START REQUESTED,
; RESET SENT, AND
; THE START ADDRESS
ENDIF.
ENDIF.
RET
;SEND A START
;ACCEPTS: Q1/ NODE NUMBER
; Q2/ PACKET ADDRESS
; Q3/ PCB
; P5/ SB
;RETURNS: +1
SNDSTA: MOVEI T1,VC.STS ;GET START-SENT CODE
STOR T1,SBVCST,(P5) ;SET INITIAL VC STATE
MOVEI T1,PP.STA ;GET START CODE
CALL STRTDT ;MAKE A START PACKET
CALL KLPSDG ;SEND IT
NOP ;NO SUCH RETURN
CALL STSST ;SET THE TIMER
RET
;Received a REQUEST DATA ON QUEUE 0 (we never use queue 0)
;Received a REQUEST DATA ON QUEUE 1 (we always use queue 1)
;Received a REQUEST DATA ON QUEUE 2 (we never use queue 2)
;Received a SEND-DATA (we never set the response bit)
;RETURNS: +1
INTRD0:
INTRD1:
INTRD2:
INTSDT: SKIPN P3 ;LOCALLY-GENERATED?
IFSKP.
;Locally-generated
MOVE T1,Q2 ;YES, POSITION THE BUFFER ADDRESS
CALLRET SC.RBF ;(T1) GIVE BUFFER BACK TO SCA POOL
ENDIF.
;Remotely-generated packet
LDB T1,PKYSTS ;NO, ILLEGAL. GET PACKET STATUS FIELD
LDB T2,PKYFLG ;GET PACKET FLAGS FIELD
BUG.(CHK,KLPIRD,PHYKLP,SOFT,<PHYKLP - Invalid remotely-generated data request>,<<T1,STATS>,<T2,FLAGS>,<P2,OPC>,<Q1,NODE>>,<
Cause: The CI20 driver received an error-free, remotely-generated packet with
opcode 10, 11, 12, or 20. This is illegal.
Action: It is unlikely, but possible, could be caused by a CI20 microcode bug
or bad CI20 hardware. The node specified in the additional data should
be checked out.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
NODE - node number
>,,<DB%NND>) ;[7.1210]
;Port got the buffer from the MFQ
CALLRET RETMSG ;(Q2,Q3) RETURN BUFFER TO MSG FREE QUEUE
;Received one of the following with an error:
;DATA CONFIRM or RETURN DATA
;REQUEST DATA ON QUEUE 0 (we never use queue 0)
;REQUEST DATA ON QUEUE 1 (we always use queue 1)
;REQUEST DATA ON QUEUE 2 (we never use queue 2)
;SEND-DATA (we never set the response bit)
;RETURNS: +1
NBFERR:
RD0ERR:
RD1ERR:
RD2ERR:
SDTERR: CALL SCAERR ;(Q1,Q2,Q3,P5) TELL SCA
SKIPN P3 ;LOCALLY-GENERATED?
CALLRET RETMSG ;(Q2,Q3) NO, RETURN BUFFER TO FREE QUEUE
MOVE T1,Q2 ;YES, POSITION THE BUFFER ADDRESS
CALLRET SC.RBF ;(T1) RETURN BUFFER TO SCA POOL
;Received a LOOP-BACK
;ACCEPTS: T1/ PACKET STATUS WORD
; Q2/ PACKET ADDRESS
; Q3/ PCB
; P1/ CDB
; P2/ OPCODE
;RETURNS: +1
INTLPB: TXNN T1,PF.PT0 ;WIRE A?
IFSKP.
SKIPN CIWIRA ;YES, WIRE A ALREADY GOOD?
IFSKP.
BUG.(INF,KLPWAG,PHYKLP,HARD,<PHYKLP - CI wire A has gone from bad to good>,,<
Cause: A loopback packet which previously failed has successfully returned
on wire A. This BUGINF is usually preceeded by a KLPWAB.
Action: It is likely that there is a problem with the CI20 hardware, CI cables,
or CI star coupler which should be checked by Field Service.
>,,<DB%NND>) ;[7.1210]
SETZM CIWIRA ;WIRE A NOW GOOD
MOVEI T2,KS%ABG ;GET READ-COUNTERS REASON CODE
CALL PPDRPT ;(T2,Q2) DO A READ-COUNTERS
CALL WIRBAD ;[7210] (Q3,P1) CHECK FOR EXCESSIVE TRANSITIONS
RET ;[7210] YES, PORT BEING RELOADED
CALL PHYSTC ;ALERT THE DISK SERVICE
JRST INTLP2 ;GO OPEN THE CIRCUIT
ENDIF.
ELSE.
SKIPN CIWIRB ;WIRE B ALREADY GOOD?
IFSKP.
BUG.(INF,KLPWBG,PHYKLP,HARD,<PHYKLP - CI wire B has gone from bad to good>,,<
Cause: A loopback packet which previously failed has successfully returned on
wire B. This BUGINF is usually preceeded by a KLPWBB.
Action: It is likely that there is a problem with the CI20 hardware, CI cables,
or CI star coupler which should be checked by Field Service.
>,,<DB%NND>) ;[7.1210]
MOVEI T2,KS%BBG ;GET READ-COUNTERS REASON CODE
CALL PPDRPT ;(T2,Q2) DO A READ-COUNTERS
SETZM CIWIRB ;WIRE B NOW GOOD
CALL WIRBAD ;[7210] (Q3,P1) CHECK FOR EXCESSIVE TRANSITIONS
RET ;[7210] YES, PORT BEING RELOADED
CALL PHYSTC ;ALERT THE DISK SERVICE
JRST INTLP2
ENDIF.
ENDIF.
CALLRET RETDG ;(Q2,Q3) RETURN THE BUFFER
;For each node to which we have an open v.c., tell the port that both paths
;are good. It will try them on free choice, and tell us if one is still bad.
INTLP2: SETZM Q1 ;Start with node zero
INTLP4: SKIPN T2,SBLIST(Q1) ;Is there a system block
JRST INTLP7 ;No.
LOAD T3,SBVCST,(T2) ;Yes. is v.c. open?
CAIE T3,VC.OPN
JRST INTLP7 ;No.
CALL KLPGDB ;GET BUFFER FOR SET CIRCUIT
JRST INTLP9
MOVX T1,CK.LPT!CK.PGD ;INDICATE OPENING BOTH PATHS
MOVEM T1,.PKCKT(Q2) ;PUT THAT IN THE PACKET
CALL KLPSCK ;SEND A SET CIRCUIT
NOP
SETONE <IDPAO,IDPBO>,(Q1) ;MARK BOTH PATHS AS OPEN FOR NOW
INTLP7: CAIGE Q1,C%SBLL-1 ;Step to next node
AOJA Q1,INTLP4
;If we didn't get a buffer, the next REQID will take care of things.
INTLP9: RET
;Received a LOOP-BACK with an error
;ACCEPTS: T1/ PACKET STATUS WORD
; Q2/ PACKET
; Q3/ PCB
; P1/ CDB
; P2/ OPCODE
;RETURNS: +1
LPBERR: LDB T2,PKYSTS ;GET STATUS FIELD
LDB T3,PKYFLG ;GET FLAGS FIELD
MOVE T4,CDBCNI(P1) ;GET CSR
TXNE T1,PS.PAE!PS.PBE ;PATH ERROR?
JRST LPBER1 ;YES, PATH ERROR
;It was a non-path error
BUG.(CHK,KLPLBF,PHYKLP,HARD,<PHYKLP - Loopback failed>,<<T2,STATS>,<T3,FLAGS>,<P2,OPC>,<T4,CSR>>,<
Cause: The CI20 driver has tried to send a loopback packet to the CI star
coupler and it had a non-path error.
Action: It is likely that there is a problem with the CI20 hardware, CI cables,
or CI star coupler which should be checked by Field Service.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
CSR - result of the last CONI
>,,<DB%NND>) ;[7.1210]
CALLRET RETDG ;(Q2,Q3) DONE
;It was a path error
LPBER1: TXNN T1,PS.PAE ;YES, PATH A ERROR?
IFSKP.
SKIPE CIWIRA ;YES, WIRE A ALREADY BAD?
IFSKP.
BUG.(INF,KLPWAB,PHYKLP,HARD,<PHYKLP - CI wire A has gone from good to bad>,<<T2,STATS>,<T3,FLAGS>,<P2,OPC>,<T4,CSR>>,<
Cause: A loopback packet which previously succeeded has failed on wire A.
Action: It is likely that there is a problem with the CI20 hardware, CI cables,
or CI star coupler which should be checked by Field Service.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
CSR - result of the last CONI
>,,<DB%NND>) ;[7.1210]
SETOM CIWIRA ;WIRE A NOW BAD
MOVEI T2,KS%AGB ;GET READ-COUNTERS REASON CODE
CALL PPDRPT ;(T2,Q2) DO A READ-COUNTERS
CALL WIRBAD ;[7210] (Q3,P1) CHECK FOR EXCESSIVE TRANSITIONS
RET ;[7210] YES, PORT BEING RELOADED
CALLRET PHYSTC ;ALERT THE DISK SERVICE
ENDIF.
ELSE.
SKIPE CIWIRB ;WIRE B ALREADY BAD?
IFSKP.
BUG.(INF,KLPWBB,PHYKLP,HARD,<PHYKLP - CI wire B has gone from good to bad>,<<T2,STATS>,<T3,FLAGS>,<P2,OPC>,<T4,CSR>>,<
Cause: A loopback packet which previously succeeded has failed on wire B.
Action: It is likely that there is a problem with the CI20 hardware, CI cables,
or CI star coupler which should be checked by Field Service.
Data: STATS - Status field of packet
FLAGS - Flags field of packet
OPC - op code field of packet
CSR - result of the last CONI
>,,<DB%NND>) ;[7.1210]
SETOM CIWIRB ;WIRE B NOW BAD
MOVEI T2,KS%BGB ;GET READ-COUNTERS REASON CODE
CALL PPDRPT ;(T2,Q2) DO A READ-COUNTERS
CALL WIRBAD ;[7210] (Q3,P1) CHECK FOR EXCESSIVE TRANSITIONS
RET ;[7210] YES, PORT BEING RELOADED
CALLRET PHYSTC ;ALERT THE DISK SERVICE
ENDIF.
ENDIF.
CALLRET RETDG ;(Q2,Q3) DONE
;WIRBAD - RESTARTS CI20 IF WE'VE HAD EXCESSIVE WIRE TRANSITIONS. THE MOST
;LIKELY CAUSE OF THIS IS A KNOWN PROBLEM IN THE CI LINK BOARD WHICH WILL
;SOMEDAY BE FIXED BY AN ECO
; Q3/ PCB
; P1/ CDB
; CALL WIRBAD ;()
; RETURN +1: PORT RELOADED
; +2: ALL IS WELL
WIRBAD: AOS T1,WIRCNT ;BUMP COUNT
CAIE T1,1 ;IS THIS THE FIRST TIME?
IFSKP.
MOVE T1,TODCLK ;YES, GET CURRENT TIME
ADDI T1,^D20000 ;ADD TOLERANCE
MOVEM T1,WIRTIM ;SAVE DROP DEAD TIME
RETSKP ;DONE
ENDIF.
CAIGE T1,2 ;[7237] HAD ENOUGH?
RETSKP ;NO
SETZM WIRCNT ;YES, START OVER
MOVE T1,WIRTIM ;GET DROP DEAD TIME
SETZM WIRTIM ;RESET IT
CAMGE T1,TODCLK ;WITHIN LIMIT?
RETSKP ;YES, DONE
BUG.(INF,KLPWIR,PHYKLP,HARD,<PHYKLP - Excessive CI wire transitions>,,<
Cause: CI loopback packets are alternately succeeding and failing at a rapid
rate.
Action: Call Field Service. The most likely cause of this is a bad CI link
module. It is possible that there is some other problem with the CI20
hardware, CI cables, or CI star coupler which should be checked by
Field Service.
>,,<DB%NND>) ;[7.1210]
CALL URDEAD ;(Q3,P1) NO, RESTART CI
RET
;Received a SET-CIRCUIT
;ACCEPTS: Q2/ PACKET ADDRESS
; Q3/ PCB
; P2/ OP CODE
;RETURNS: +1
INTCKT: LDB T1,PKYSTS ;GET STATUS FIELD
LDB T2,PKYFLG ;GET FLAGS FIELD
BUG.(CHK,KLPSCR,PHYKLP,HARD,<PHYKLP - SET-CIRCUIT command received>,<<T1,STATUS>,<T2,FLAGS>,<P2,OPC>>,<
Cause: TOPS-20 has found an error free SET-CIRCUIT command on the response
queue. The CI port has done something wrong because the response bit
is never set so this packet should not be seen.
Action: This may be a CI20 microcode bug, or the CI20 hardware problem. Field
Service should check out the CI20 hardware.
Data: STATUS - status field of packet
FLAGS - flags field of packet
OPC - op code field of packet
>,,<DB%NND>) ;[7.1210]
CALLRET RETDG ;(Q2,Q3) RETURN BUFFER
;Received a SET-CIRCUIT with an error
;ACCEPTS: Q2/ PACKET ADDRESS
; Q3/ PCB
; P2/ OP CODE
;RETURNS: +1
CKTERR: LDB T1,PKYSTS ;GET STATUS FIELD
LDB T2,PKYFLG ;GET FLAGS FIELD
BUG.(CHK,KLPCKE,PHYKLP,HARD,<PHYKLP - SET-CIRCUIT command error>,<<T1,STATUS>,<T2,FLAGS>,<P2,OPC>>,<
Cause: A SET-CIRCUIT command has failed. TOPS-20 doesn't retry such commands
because it believes the CI port always executes them properly. The
port is probably in trouble.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
Data: STATUS - status field of packet
FLAGS - flags field of packet
OPC - op code field of packet
>,,<DB%NND>) ;[7.1210]
CALLRET RETDG ;(Q2,Q3) RETURN BUFFER
;Received a READ-STATISTICS-COUNTERS
;ACCEPTS: T1/ PACKET STATUS FIELD
; Q2/ PACKET
; Q3/ PCB
; P1/ CDB
;RETURNS: +1
INTRCT: TXNN T1,PF.CPE ;PORT GENERATE IT AFTER CRAM PARITY ERROR?
IFSKP.
MOVEI T1,KS%CRP ;[7255] YES, GET REASON CODE
MOVEM T1,.PKXID(Q2) ;[7255] SET REASON FOR DOING READ-COUNTERS
CALLRET SPR241 ;[7255] (Q2,Q3) MAKE SPEAR ENTRY
ENDIF.
;TOPS-20 did a READ-COUNTERS
MOVE Q1,.PKXID(Q2) ;GET REASON WE DID IT
SUBI Q1,2 ;0 AND 1 DON'T COUNT (0 IS ILLEGAL, 1 IS CPE)
SKIPL Q1
CAILE Q1,BIG241
JRST [ BUG.(INF,KLPBRC,PHYKLP,HARD,<Bad READ-COUNTERS>,,<
Cause: TOPS-20 has removed a READ-COUNTERS packet from response queue and the
reason code field contains an illegal value.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
>)
CALLRET RETDG] ;(Q2,Q3) RETURN THE PACKET TO THE FREE QUEUE
CALLRET @DSP241(Q1) ;GO PROCESS THE PACKET
DSP241: IFIW!SPR241 ;PATH A WENT FROM GOOD TO BAD
IFIW!SPR241 ; BAD TO GOOD
IFIW!SPR241 ;PATH B WENT FROM GOOD TO BAD
IFIW!SPR241 ; BAD TO GOOD
IFIW!SPR241 ;PERIODIC COLLECTION
IFIW!RCTUCD ;GET UCODE VERSION
IFIW!RCTDIA ;DIAG% DID IT
BIG241=.-<DSP241-1>
;READ-COUNTERS WAS DONE TO GET UCODE VERSION
;ACCEPTS: Q1/ REASON
; Q2/ PACKET
; Q3/ PCB
; P1/ CDB
;RETURNS: +1
RCTUCD: MOVE T2,.PKUCD(Q2) ;[7.1134] Get ucode version
LOAD T1,CDVER,(P1) ;[7.1134] Get the version we loaded
CAME T1,T2 ;[7.1134] Was it what we expected?
BUG.(CHK,KLPMVW,PHYKLP,SOFT,<CI20 microcode version wrong>,<<T1,MVER>,<T2,UVER>>,<
Cause: The CI20 has returned a microcode version that is different than the
version the monitor thought it loaded.
Action: There is probably a problem with BS:<SYSTEM>IPALOD.EXE. Find a correct
IPALOD, put it in BS:<SYSTEM>, and reload the system.
Data: MVER - version loaded by monitor
UVER - version returned by microcode
>,,<DB%NND>) ;[7.1210]
CALLRET SPR241 ;(Q2,Q3) MAKE ERROR.SYS ENTRY
;READ-COUNTERS HAS ARRIVED FOR DIAG%
;ACCEPTS: Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
RCTDIA: MOVE T1,TODCLK ;GET THE TIME OF THE READ.
MOVEM T1,CNTBUF ;STORE IT.
MOVEI T1,.PKPDD ;SET UP FOR BLT.
XMOVEI T2,.PKPDA(Q2)
MOVEI T3,CNTBUF+1
EXTEND T1,[XBLT] ;BLT DATA FROM THE PACKET TO CNTBUF.
AOS CNTFLG ;SET THE READ DONE FLAG.
CALLRET RETDG ;(Q2,Q3) RELEASE THE PACKET BUFFER AND RETURN
;MAKE AN ERROR.SYS ENTRY FOR "KLIPA STATISTICS EVENT" - EVENT CODE 241
;ACCEPTS: Q2/ PACKET ADDRESS
; Q3/ PCB
;RETURNS: +1
SPR241: STKVAR <EBLOK>
MOVEI T1,KS%LEN ;YES, TOTAL BLOCK LENGTH
MOVEI T2,KS%SIZ ;NON STRING DATA SIZE
CALL ALCSEB ;(T1,T2/T1) TRY TO GET ERROR BLOCK
JRST SPR24A ;NONE AVAILABLE.
MOVEM T1,EBLOK ;SAVE LOC OF ERROR BLOCK
MOVE T2,.PKXID(Q2) ;GET REASON FOR DOING READ-COUNTERS
STOR T2,KSRSN ;STASH IT
MOVEI T2,KLPRH2 ;GET KLIPA CHANNEL
STOR T2,KSCHN ;STASH IT
MOVE T2,.PKUCD(Q2) ;GET UCODE VERSION
STOR T2,KSVSN ;STASH IT
MOVE T2,[-NKSTAB,,KSTAB] ;FILL IN THE DATA
MOVE P3,Q2 ;CAN'T USE Q2 FOR SEBCPY AND DON'T NEED P3 NOW
CALL SEBCPY ;(T1,T2)
JFCL
MOVE T1,EBLOK ;RETRIEVE ERROR BLOCK
CALL QUESEB ;(T1) HAND IT TO SPEAR
SPR24A: CALLRET RETDG ;(Q2,Q3) RETURN TO DG FREE Q
ENDSV.
;FORMAT DEFINITION OF KLIPA STATISTICS EVENT (ERROR.SYS ENTRY 241)
;
;NOTE: P3 (not Q2) contains the packet address because the routine SEBCPY
; uses the Qs.
KSTAB: SEBPTR 0,SBTEVC,SEC%KS ;BLOCK TYPE
SEBPTR KS%OFF,SBTWD,KSOFF ;OFFSET TO STATISTICS DATA
SEBPTR KS%VER,SBTWD,VER241 ;VERSION WORD
SEBPTR KS%AAK,SBTWD,.PKPAA(P3) ;PATH A ACKS
SEBPTR KS%ANK,SBTWD,.PKPAN(P3) ;PATH A NACKS
SEBPTR KS%ANR,SBTWD,.PKANR(P3) ;PATH A NO-RESPONSES
SEBPTR KS%BAK,SBTWD,.PKPBA(P3) ;PATH B ACKS
SEBPTR KS%BNK,SBTWD,.PKPBN(P3) ;PATH B NACKS
SEBPTR KS%BNR,SBTWD,.PKBNR(P3) ;PATH B NO-RESPONSES
SEBPTR KS%DGD,SBTWD,.PKDGD(P3) ;DATAGRAMS DISCARDED
SEBPTR KS%PXM,SBTWD,.PKPXM(P3) ;PACKETS TRANSMITTED
SEBPTR KS%PRC,SBTWD,.PKPRC(P3) ;PACKETS RECEIVED
SEBPTR KS%DPT,SBTWD,.PKDPT(P3) ;DESIGNATED PORT
SEBPTR KS%CRC,SBTWD,.PKCRC(P3) ;PACKETS WITH CRC ERRORS
SEBPTR KS%EW1,SBTWD,.PKEW1(P3) ;ERROR WORD 1
SEBPTR KS%EW2,SBTWD,.PKEW2(P3) ;ERROR WORD 2
SEBPTR KS%EW3,SBTWD,.PKEW3(P3) ;ERROR WORD 3
SEBPTR KS%EW4,SBTWD,.PKEW4(P3) ;ERROR WORD 4
SEBPTR KS%EW5,SBTWD,.PKEW5(P3) ;ERROR WORD 5
SEBPTR KS%EW6,SBTWD,.PKEW6(P3) ;ERROR WORD 6
NKSTAB==.-KSTAB
;Received a READ-STATISTICS-COUNTERS with an error
;ACEPTS: Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
RCTERR: BUG.(CHK,KLPRCE,PHYKLP,HARD,<PHYKLP - READ-COUNTERS command failed>,,<
Cause: There is a problem with the CI20 port, the read-counters command failed.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
>,,<DB%NND>) ;[7.1210]
CALLRET RETDG ;(Q2,Q3) RETURN PACKET TO FREE QUEUE
;Received a READ-REGISTER (we only do READ-NODE-ADDRESS)
;ACCEPTS: Q2/ PACKET
; Q3/ PCB
; P1/ CBD
;RETURNS: +1
INTRRG: LDB T1,PKYDTA ;NO, GET OUR NODE NUMBER
MOVEM T1,CDBNOD(P1) ;PUT IT IN CDB
CALLRET RETDG ;(Q2,Q3) RETURN THE BUFFER
;Received a READ-REGISTER with an error
;ACCEPTS: Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
RRGERR: BUG.(CHK,KLPCRR,PHYKLP,HARD,<PHYKLP - READ-REGISTER command failed>,,<
Cause: There is a problem with the CI20 port, a read-register command failed.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
>,,<DB%NND>) ;[7.1210]
CALLRET RETDG ;(Q2,Q3) RETURN THE BUFFER
;INTMCR - RECEIVED A MAINTENANCE CONFIRM (MCNF)
; CALL @KLPROU(T1)
;RETURN: +1 ALWAYS
;INTMDR - RECEIVED A MAINTENANCE DATA RECEIVED (MDATREC)
; CALL @KLPROU(T1)
;RETURN: +1 ALWAYS
INTMDR:
INTMCR: CALL CHKMAI ;ARE WE EXPECTING THIS?
CALLRET RETDG ;(Q2,Q3) NO, RETURN PACKET TO FREE QUEUE
SETZM MAIFLG ;YES, THERE IS NO ERROR.
CALLRET RETDG ;(Q2,Q3) RETURN PACKET TO FREE QUEUE
;Received a MAINTENANCE-CONFIRM or MAINTENANCE-DATA-RECEIVED with an error
;ACCEPTS: Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
MDRERR:
MCRERR: CALL CHKMAI ;WERE WE EXPECTING THIS?
CALLRET RETDG ;(Q2,Q3) NO, RETURN PACKET TO FREE QUEUE
BUG.(INF,KLPMCE,PHYKLP,HARD,<Received an MCNF or an MDATREC with an error>,<<T1,NODE>,<T2,STATUS>>,<
Cause: The CI20 port driver has received a maintenance confirm or maintenance
data received packet with an error.
Action: Check the error code in the status word for the type of error. It is
possible, though unlikely, that this is a CI20 microcode problem. It
is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
Data: NODE - The node number of the CI node.
STATUS - The status word of the packet.
>,,<DB%NND>) ;[7.1210]
MOVEI T1,1 ;GET ERROR INDICATOR
MOVEM T1,MAIFLG ;SET THE ERROR FLAG (GT 0 MEANS ERROR)
CALLRET RETDG ;(Q2,Q3) RETURN PACKET TO FREE QUEUE
;CHECK FOR MCNF EXPECTED
;RETURNS: +1 NO
; +2 YES
CHKMAI: LDB T1,[POINT PKSNOD,.PKSTS(Q2),PKPNOD] ;GET NODE NUMBER
SKIPE MAITIM ;IS AN MCNF EXPECTED?
RETSKP ;YES
BUG.(CHK,KLPMCR,PHYKLP,HARD,<Received an MCNF or an MDATREC from CI20 when not expected>,<<T1,NODE>>,<
Cause: Either a maintenance function timed out, or the CI20 gave us a spurious
maintenance confirm or maintenance data received packet with an error.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
Data: NODE - Node number of CI node that sent the MCNF or MDATREC.
>,,<DB%NND>) ;[7.1210]
RET
;INTCLO - RECEIVED A CLOSE BUFFER FINISHED INTERRUPT. IF THERE IS NO
;ERROR , THEN THE OPERATION WAS SUCCESSFUL. AN ERROR, WHERE THE
;BUFFER NAME WAS NOT FOUND ALSO IMPLIES SUCCESS; IF THERE IS
;NO BUFFER BY THE NAME IN THE KLIPA'S QUEUES, THEN THE WRITE WILL NOT
;HAPPEN.
; CALL @KLPROU(T1)
;ACCEPTS: Q2/ PACKET
; Q3/ PCB
;RETURN: +1 ALWAYS
INTCLO: SKIPN MAICLN ;IS THE DIAG% WAITING FOR THIS.
IFSKP.
MOVE T1,.PKBNM(Q2) ;YES. GET THE BUFFER NAME.
CAMN T1,MAICLN ;IS THIS THE DIAG% ONE.
AOS MAICLF ;YES. SET THE FLAG.
ENDIF.
CALLRET RETDG ;(Q2,Q3) RETURN PACKET TO FREE QUEUE
;Received a CLOSE-BUFFER with an error
;ACCEPTS: Q2/ PACKET
; Q3/ PCB
;RETURNS: +1
CLOERR: LOAD T2,.PKSFD,(Q2) ;GET STATUS FIELD LESS ERROR BIT
CAIE T2,PS.IBN ;IS IT INVALID BUFFER NAME ERROR?
;NO. OUTPUT BUGINF.
BUG.(INF,KLPCLB,PHYKLP,HARD,<Close buffer function failed>,<<T1,STATUS>>,<
Cause: The CI20 port driver has received a a Close Buffer packet with an
error. Look at the status word to find out what the error was.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
Data: STATUS - Status word
>)
JRST INTCLO ;MOVE ON
SUBTTL PHYSIO Interface -- Channel Command Word, Hung, Reset
;CREATE A CHANNEL XFER WORD FOR THE PORT
;HERE THROUGH KLPDSP (THE CDSCCW OFFSET)
;ACCEPTS: T1/ MODE,,+COUNT(1B0 IF BACKWARDS)
; T2/ PHYSICAL ADDRESS
;RETURNS: +1 T1/ CCW FOR THIS TRANSFER
;
;NOTE: THE MAXIMUM TRANSFER WHICH WILL ALWAYS WORK IS 1 PAGE.
;THE CALLER IS EXPECTED TO WORRY ABOUT PAGE CROSSING PROBLEMS.
;WE COMPUTE RH20-LIKE CCWS SINCE THEY WILL FIT IN 1 WORD. WE GENERATE
;BHD/BSD SETS WHEN ABOUT TO START IO.
KLPCCW: STKVAR <KCW1>
MOVEM T1,KCW1 ;SAVE ARGUMENT
HRRZ T3,T1 ;GET WORD COUNT
HLRZS T1 ;GET MODE IN CORRECT PLACE
TRZ T1,(1B0) ;CLEAR BACKWARDS BIT FROM MODE
CAIN T1,IRMWRD ;SPECIAL CASE CHECK FOR COMMON CASE
JRST KLPCW1 ;IS WORD MODE, DO IT FAST
IDIV T3,MODTAB(T1) ;CONVERT TO WORDS
SKIPE T4 ;ROUND?
AOS T3 ;YES
KLPCW1: MOVE T4,KCW1 ;GET ARGUMENT BACK
MOVE T1,T2 ;ADDRESS
STOR T3,CHCNT,T1 ;STORE COUNT IN T1
RET ;RETURN
;CHANNEL HUNG
;HERE THROUGH KLPDSP (THE CDSHNG OFFSET)
;RETURNS: +1
KLPHUN: HRRZ P2,UDBKDB(P3) ;GET ADDRESS OF KDB
LOAD T1,USTYP,(P2) ;GET CONTROLLER TYPE
CAIE T1,.UTHSC ;AN HSC?
CALL DSPBUG ;NO
MOVEI T1,MSCDSP ;YES, GET MSCP CONTROLLER DISPATCH VECTOR
CALLRET UDSHNG(T1) ;GO DO THE WORK
;RESTART THE CI
;HERE THROUGH KLPDSP (THE CDSRST OFFSET)
; P1/ CDB
; CALL KLPZAP ;(P1/)
; RETURN +1
KLPZAP::SAVEPQ ;[7121]
MOVE Q3,CDBPCB(P1) ;[7121] GET PCB
CALL URDEAD ;[7121] (Q3,P1) START OVER
RET
SUBTTL PHYSIO Interface -- KLPCHK (Once-a-second Check)
;HERE FROM PHYCHK THROUGH KLPDSP (THE CDSCHK OFFSET)
;ACCEPTS: P1/ CDB
;RETURNS: +1
KLPCHK: SAVEPQ
EA.ENT ;WE NEED TO BE IN SECTION 1
LOAD T1,CFSTA,(P1) ;GET PORT STATE
CALLRET @CHKSTA(T1) ;TAKE APPROPRIATE ACTION
;UCODE RUNNING
KLPCH1: SKIPN KLPRDY ;READY TO GO?
JRST KLPCH6 ;NO, GO DO START UP STUFF
CONI KLP,T1 ;YES, GET CSR
MOVEM T1,LSTCNI ;SAVE IT
MOVE Q3,CDBPCB(P1) ;GET PCB
TXNE T1,CI.ECP ;ENABLE COMPLETE
TXNE T1,CO.ENA ; AND ENABLED?
IFSKP.
BUG.(CHK,KLPNEN,PHYKLP,SOFT,<PHYKLP - CI20 not enabled>,,<
Cause: TOPS-20 believes the CI20 should be enabled but has found otherwise.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
>,,<DB%NND>) ;[7.1210]
CALL URDEAD ;(Q3,P1/) STOP CI AND START OVER
RET
ENDIF.
CALL CHKPCB ;(T1,Q3) CHECK THE PCB
IFN KLPDBG,<
CALL CHKQS ;(Q3) CHECK THE QUEUES
>
CALL CHKWIR ;(Q3,P1) CHECK CI WIRES
CALL CHKRTO ;(Q3,P1) CHECK FOR REQUEST-ID TIMEOUTS
CALL CHKSTO ;(Q3) CHECK FOR START SEQUENCE TIMEOUTS
CALL CHKOPC ;(Q3) CHECK FOR DEFERRED CLOSES
CALL CHKPOL ;(Q3) POLL THE NEXT NODE WITH A REQUEST-ID
RET
;UCODE NEEDS-RELOADING TIMER
KLPCH2: MOVE T1,UCDTIM ;GET TIMEOUT TIME
CAMG T1,TODCLK ;TIMED OUT?
BUG.(HLT,KLPNRL,PHYKLP,HARD,<PHYKLP - CI20 ucode needs reloading>,,<
Cause: The CI20 port microcode needs to be reloaded but there is a time out
waiting for it to get started.
Action: It could be that there is something blocking job 0. It is more likely
that there is CI20 hardware problem. Field Service should check out
the CI20 hardware.
>)
RET
;UCODE RELOAD-IN-PROGRESS TIMER
KLPCH3: MOVE T1,UCDTIM ;GET TIMEOUT TIME
CAMG T1,TODCLK ;TIMED OUT?
BUG.(CHK,KLPSRL,PHYKLP,SOFT,<PHYKLP - CI20 ucode still reloading>,,<
Cause: The CI20 port microcode is being reloaded and there is a time out
waiting for it to complete. A KLPNRL BUGHLT happens if it doesn't
complete soon.
Action: It could be that there is something blocking job 0. It is more likely
that there is CI20 hardware problem. Field Service should check out
the CI20 hardware.
>,,<DB%NND>) ;[7.1210]
RET ;NO
;UCODE NEEDS-DUMPING TIMER
KLPCH4: MOVE T1,UCDTIM ;GET TIMEOUT TIME
CAMG T1,TODCLK ;TIMED OUT?
BUG.(HLT,KLPNDM,PHYKLP,SOFT,<PHYKLP - CI20 ucode needs dumping>,,<
Cause: The CI20 port microcode needs to be dumped but there is a timeout
waiting for it to get started.
Action: It could be that there is something blocking job 0. It is more likely
that there is CI20 hardware problem. Field Service should check out
the CI20 hardware.
>)
RET ;NO
;UCODE DUMP-IN-PROGRESS TIMER
KLPCH5: MOVE T1,UCDTIM ;GET TIMEOUT TIME
CAMG T1,TODCLK ;TIMED OUT?
BUG.(CHK,KLPSDM,PHYKLP,SOFT,<PHYKLP - CI20 ucode still dumping>,,<
Cause: The CI20 port microcode is being dumped and there is a time out waiting
for it to complete.
Action: It could be that there is something blocking job 0. It is more likely
that there is CI20 hardware problem. Field Service should check out
the CI20 hardware.
>,,<DB%NND>) ;[7.1210]
RET ;NO
;Get our CI node number
KLPCH6: MOVE Q3,CDBPCB(P1) ;GET PCB
CALL KLPGDB ;(Q3/Q2) GET A DG BUFFER
RET ;CAN'T NOW, BETTER LUCK NEXT TIME
CALL KLPRRG ;(Q2,Q3) SEND A READ REGISTER
NOP ;NO SUCH RETURN
MOVEI Q2,100000 ;GET A SPIN COUNT
KLPCH7: SKIPL CDBNOD(P1) ;HAVE OUR NODE NUMBER YET?
JRST KLPCH8 ;YES, MOVE ON
SOJG Q2,KLPCH7 ;NO, WAIT SOME MORE
LOAD T1,CFSTA,(P1) ;WAITED LONG ENOUGH, GET STATE OF PORT
CAIE T1,CHNRUN ;STILL RUNNING?
RET ;NO
BUG.(CHK,KLPCGN,PHYKLP,HARD,<PHYKLP - Can't get CI node number>,,<
Cause: The CI20 driver did a READ-REGISTER command to get the CI node number
from the port; it timed out waiting for the reply.
Action: The CI20 port is sick, call Field Service to check it out.
>,,<DB%NND>) ;[7.1210]
CALL URDEAD ;(Q3,P1/) STOP CI AND START OVER
RET ;THAT'S ALL FOR NOW
;Send a request ID to each node on the network.
KLPCH8: STKVAR <COUNT> ;[7185]
SETZM COUNT ;[7185] INIT NUMBER OF REQUEST-IDS ATTEMPTED
SETOM RIDNXT ;[7185] INIT POLLER'S NODE NUMBER
KLPCH9: CALL INCRID ;MOVE TO NEXT NODE
MOVE Q1,RIDNXT ;GET NEXT NODE NUMBER
SKIPE RIDTIM(Q1) ;REQUEST-ID ALREADY OUTSTANDING?
JRST KLPC10 ;YES. DON'T ASK AGAIN
CALL KLPGDB ;(Q3/Q2) NO, GET A DATAGRAM BUFFER
JRST KLPC11 ;CAN'T NOW, WE'LL GET TO IT LATER
MOVX T3,PF.PT0 ;USE PATH A, RESPONSE NOT NEEDED
CALL KLPRID ;(T3,Q1,Q2,Q3) SEND REQUEST-ID
NOP ;NO SUCH RETURN
KLPC10: AOS T1,COUNT ;[7185]
CAIE T1,MAXNDS ;[7185] TRIED ALL OTHER NODES?
AOJA Q1,KLPCH9 ;NO, DO THE NEXT ONE
KLPC11: SETOM KLPRDY ;SAY KLIPA IS READY FOR USE
RET
ENDSV. ;[7185]
;Check some locations in the PCB
;ACCEPTS: T1/ CSR
; P1/ CDB
; Q3/ PCB
;RETURNS: +1
CHKPCB: CAME Q3,.PBPBA(Q3) ;PCB STILL GOOD?
CHKPC1: BUG.(HLT,KLPPCB,PHYKLP,SOFT,<PHYKLP - PCB is corrupted>,,<
Cause: During the once a second check of the CI20 PCB, either the PCB's own
address in the PCB is incorrect or the message size in the PCB is
incorrect.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
>)
MOVEI T2,C%MGSZ ;GET MESSAGE SIZE
CAME T2,.PBMQE(Q3) ;PCB STILL GOOD?
JRST CHKPC1 ;NO
MOVE T3,T1 ;YES, PRESERVE CSR
ANDI T1,7 ;GET JUST THE PIA
LDB T2,CSYPIA ;GET THE CORRECT PIA
CAMN T1,T2 ;KLIPA STILL SANE?
IFSKP.
BUG.(INF,KLPPIA,PHYKLP,HARD,<PHYKLP - CI20 has lost its PIA>,<<T3,CSR>>,<
Cause: During the once a second check, it has been discovered that the CI20 no
longer knows its interrupt assignment.
Action: The monitor resets, reloads, and attempts to restart the CI20. There
is CI20 hardware problem. Field Service should check out the CI20
hardware.
Data: CSR - the result of the last CONI
>,,<DB%NND>) ;[7.1210]
CALL URDEAD ;(Q3,P1/) STOP CI AND START OVER
ENDIF.
RET
;Check the queues. Each interlock word should contain either 0 or -1,
;and the contents of the queue should pass the sanity check.
;ACCEPTS: Q3/ PCB
;RETURNS: +1
IFN KLPDBG,<
CHKQS: MOVEI T1,.PBQ3I(Q3) ;GET FIRST COMMAND QUEUE INTERLOCK WORD
CHKQS1: SKIPE T2,(T1) ;DOES IT CONTAIN A ZERO?
CAMN T2,[-1] ;NO. HOW ABOUT -1
SKIPA ;EITHER IS OK
BUG.(HLT,KLPILK,PHYKLP,SOFT,<PHYKLP - Interlock word is bad>,,<
Cause: A queue interlock word contains an invalid value.
Action: It is possible that this is a CI20 microcode problem or a monitor
problem. It is unlikely but possible that there is CI20 hardware
problem.
>)
CALL SANCHK ;(T1/)IS THIS QUEUE OK? (CRASH IF NO)
ADDI T1,3 ;STEP TO NEXT INTERLOCK
CAMG T1,.PBDFI(Q3) ;UP TO THE DATAGRAM FREE QUEUE YET?
JRST CHKQS1 ;NO, KEEP GOING
RET ;YES, DONE
>
;CHKWIR - Check CI wires by sending loopback packets
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
CHKWIR: HRRZ Q1,CDBNOD(P1) ;get our node number
CALL KLPGDB ;(Q3/Q2) Get a DATAGRAM buffer
RET ;FAILED, NOT CRITICAL
MOVE T2,LPBCRC(Q1) ;get the proper CRC
MOVEM T2,LPBLEN-1(Q2) ;Stash the CRC
MOVEI T1,OP.LPB ;OP CODE
MOVEI T2,KLPDRG ;PRIORITY
SKIPE WIRNXT ;WIRE A?
SKIPA T3,[PF.PT1] ;NO, WIRE B
MOVX T3,PF.PT0 ;YES, WIRE A
SETZM .PKLEN(Q2) ;No length
CALL DRVSND ;(T1,T2,T3,Q1,Q2,Q3) Send it
NOP ;NO SUCH RETURN
SKIPN WIRNXT ;DID WE JUST DO A?
IFSKP.
SETZM WIRNXT ;NO, DO A NEXT TIME
ELSE.
SETOM WIRNXT ;YES, DO B NEXT TIME
ENDIF.
RET
;Check for REQUEST-ID time outs
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
CHKRTO: SETZ Q1, ;START WITH NODE 0
CHKRT1: SKIPE T1,RIDTIM(Q1) ;TIMER ON?
CAMLE T1,TODCLK ;YES, TIMED OUT?
JRST CHKRT3 ;NO, NEXT NODE
TMNN IDTRY,(Q1) ;YES, WAS IT THE FIRST TRY?
JRST CHKRT2 ;YES, TRY A SECOND TIME
TMNN IDWFR,(Q1) ;NO, STILL WAITING FOR OUR PORT TO RESPOND?
IFSKP.
;Our port is sick
BUG.(INF,KLPHNG,PHYKLP,HARD,<PHYKLP - CI20 is hung>,,<
Cause: The response bit on a REQUEST-ID command was set and timed out waiting
for it to appear on the response queue.
Action: It is possible, though unlikely, that this is a CI20 microcode problem.
It is more likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
>,,<DB%NND>) ;[7.1210]
CALL URDEAD ;(Q3,P1/) STOP CI AND START OVER
RET
ENDIF.
;The remote port is sick
LOAD T1,IDNOR,(Q1) ;NO, PORT SENT IT. GET COUNT
CAIGE T1,MAXNOR ;HAVE WE TRIED ENOUGH?
IFSKP.
BUG.(CHK,KLPNOA,PHYKLP,SOFT,<PHYKLP - Remote port is not answering>,<<Q1,NODE>>,<
Cause: The remote node is ACKing REQUEST-IDs but not sending IDRECs.
Action: The remote system needs to be investigated.
Data: NODE - Remote CI node number
>,,<DB%NND>) ;[7.1210]
MOVEI T1,1 ;YES, START
STOR T1,IDNOR,(Q1) ; OVER
ELSE.
INCR IDNOR,(Q1) ;NO, COUNT IT
ENDIF.
SETZRO <IDTRY,IDWFR>,(Q1) ;FIRST TRY, NOT WAITING FOR RESPONSE
RET
;The first REQUEST-ID try has timed out
CHKRT2: CALL KLPGDB ;(Q3/Q2) GET A NEW BUFFER FOR THE RID
RET ;CAN'T NOW
SETONE <IDTRY,IDWFR>,(Q1) ;2ND TRY, WAITING FOR RESPONSE TO REQUEST-ID
SETONE PKDRV,(Q2) ;SET THE DRIVER SOFTWARE RESPONSE BIT
MOVX T3,PF.RSP ;GET THE PACKET RESPONSE BIT
TMNE IDSNT,(Q1) ;USING PATH A?
IFSKP.
IOR T3,[PF.PT0] ;YES
ELSE.
IOR T3,[PF.PT1] ;NO, USE PATH B
ENDIF.
CALL KLPRID ;(T3,Q1,Q2,Q3) SEND THE REQUEST-ID
NOP ;NO SUCH RETURN
CALL NXTRID ;(Q1) MOVE POLLER TO NEXT NODE
CHKRT3: CAIL Q1,MAXNDS ;THIS THE LAST NODE?
RET ;YES, DONE
AOS Q1 ;NO, MOVE TO NEXT
JRST CHKRT1 ; NODE
;Check start sequence timers
;ACCEPTS: Q3/ PCB
;RETURNS: +1
CHKSTO: MOVSI P6,-C%SBLL ;AOBJN WORD FOR SB LIST
CHKST1: SKIPN P5,SBLIST(P6) ;IS THERE ONE THERE?
JRST CHKST2 ;NO
OPSTR <SKIPE T1,>,SBSST,(P5) ;YES, TIMER ON?
CAMLE T1,TODCLK ;YES, TIMED OUT?
JRST CHKST2 ;NO
LOAD T1,SBDPA,(P5) ;YES, GET NODE NUMBER
CALL PTHSTS ;(T1/T2) GET PATH STATUS
RET ;PORT NOT RUNNING
TXNE T2,UDB%WA+UDB%WB ;NODE STILL ANSWERING REQUEST-IDS?
IFSKP.
CHKST3: CIOFF
SETZRO SBSST,(P5) ;NO, TURN OFF START TIMER
MOVX T1,VC.CLO ;SET STATE
STOR T1,SBVCST,(P5) ; BACK TO CLOSED
SETONE SBOKO,(P5) ;SAY IT'S OK TO OPEN
CION
JRST CHKST2 ;MOVE ON
ENDIF.
TXNN T2,UDB%MA ;YES, IS IT IN MAINTENANCE MODE?
IFSKP.
MOVE T2,T1 ;YES, GET NODE NUMBER
CALL ISIT20 ;IS IT A 20?
SKIPA ;NO, KEEP TRYING
JRST CHKST3 ;YES, FORGET ABOUT IT
ENDIF.
LOAD Q1,SBDPA,(P5) ;NO, GET NODE NUMBER
CALL KLPGDB ;(Q3/Q2) GET A BUFFER
RET ;CAN'T NOW
LOAD T1,SBVCST,(P5) ;GET VC STATE
CAIE T1,VC.STS ;START-SENT?
IFSKP.
MOVEI T1,PP.STA ;YES, GET START CODE
ELSE.
MOVEI T1,PP.STK ;NO, GET STACK CODE
ENDIF.
CALL STRTDT ;(T1,Q2) MAKE THE PACKET
CALL KLPSDG ;(Q1,Q2,Q3) SEND IT
NOP ;NO SUCH RETURN
CALL STSST ;(P5) SET THE TIMER
CHKST2: AOBJN P6,CHKST1 ;DO ALL SB
RET
;Regular REQUEST-ID polling
;ACCEPTS: Q3/ PCB
;RETURNS: +1
CHKPOL: MOVE Q1,RIDNXT ;NO, GET NODE
SKIPE RIDTIM(Q1) ;ALREADY ONE OUT THERE?
CALLRET INCRID ;(Q1) YES, MOVE POLLER TO NEXT NODE
CALL KLPGDB ;(Q3/Q2) NO, GET A BUFFER
RET ;CAN'T NOW
CALL GTNPTH ;(Q1/T3) GET NEXT PATH
CALL KLPRID ;(T3,Q1,Q2,Q3) SEND REQUEST-ID
NOP ;NO SUCH RETURN
CALLRET INCRID ;(Q1) MOVE POLLER TO NEXT NODE
;CHECK FOR DEFERRED CLOSES
;ACCEPTS: Q3/ PCB
;RETURNS: +1
CHKOPC: MOVSI P4,-C%SBLL ;AOBJN WORD FOR SB LIST
CHKOP3: HRRZ Q1,P4 ;ISOLATE NODE NUMBER
SKIPN P5,SBLIST(P4) ;IS THERE ONE THERE?
JRST CHKOP2 ;NO
TMNN SBNTC,(P5) ;YES, NEED CLOSING?
IFSKP.
CALL KLPGDB ;(Q3/Q2) YES, GET A BUFFER
RET ;CAN'T NOW, WE'LL TRY NEXT TIME
CALL KLPCLO ;(Q1,Q2,Q3) TELL PORT TO CLOSE THE VC
NOP ;NO SUCH RETURN
SETZRO SBNTC,(P5) ;NO LONGER TRYING TO CLOSE
SETONE SBWFI,(P5) ;WATING FOR IDREC
ENDIF.
CHKOP2: AOBJN P4,CHKOP3 ;CHECK ALL SB
RET
;UPDATE POLLER'S NEXT NODE ONLY IF RIDNXT AND Q1 AGREE
;ACCEPTS: Q1/ NODE NUMBER
; P1/ ADDRESS OF CDB
;RETURNS: +1
;Q1 represents the node to which we just send a REQID or START. If
;RIDNXT contains the same node number, the next call to CHKPOL will
;send another REQID to it. In this case, increment RIDNXT to the next
;legal node number to avoid the problem
NXTRID: CAMN Q1,RIDNXT ;IS IT THE POLLER'S NEXT NODE
CALL INCRID ;(P1/) YES. INCREMENT
RET
;INCRID - Increment RIDNXT
;Accepts:
; P1/ address of CDB
; CALL INCRID
;Returns +1: always
;Increment RIDNXT to the next legal node number. Don't let it go
;beyond the maximum, and don't let it be our node.
INCRID: AOS T1,RIDNXT ;Compute next node number
CAILE T1,MAXNDS ;Too high?
SETZB T1,RIDNXT ;Yes. Wrap to zero
CAMN T1,CDBNOD(P1) ;Is it our node?
JRST INCRID ;Yes. That's not good. Get the next one
RET
;GET CURRENT PATH
;ACCEPTS: T1/ PACKET STATUS WORD
; Q1/ NODE NUMBER
;RETURNS: +1 T3/ FLAGS FIELD SET WITH PATH SELECT
;PRESERVES T1
GTCPTH: TXNN T1,PF.PT0 ;DID IT ARRIVE ON PATH A?
IFSKP.
SETZRO IDSNT,(Q1) ;YES, USE
MOVX T3,PF.PT0 ; PATH A FOR NEXT REQUEST-ID
ELSE.
SETONE IDSNT,(Q1) ;NO, USE
MOVX T3,PF.PT1 ; PATH B FOR NEXT REQUEST-ID
ENDIF.
RET
;GET NEXT PATH
;ACCEPTS: Q1/ NODE NUMBER
;RETURNS: +1 T3/ FLAGS FIELD SET WITH PATH SELECT
GTNPTH: SETZ T3, ;RESET THE PATH AC
TMNE IDSNT,(Q1) ;LAST ONE ON PATH A?
IFSKP.
IOR T3,[PF.PT1] ;YES, USE B
SETONE IDSNT,(Q1) ; NEXT
ELSE.
IOR T3,[PF.PT0] ;NO, USE A
SETZRO IDSNT,(Q1) ; NEXT
ENDIF.
RET
;SET START SEQUENCE TIMER
;ACCEPTS: P5/ SB
;RETURNS: +1
STSST: MOVE T2,TODCLK ;GET CURRENT TIME
ADD T2,SSTTMO ;CALC TIME OUT TIME
STOR T2,SBSST,(P5) ;RESET TIMER
RET
SUBTTL PHYSIO Interface -- Check Unit Existence
;CHECK EXISTENCE OF UNIT
;HERE THROUGH KLPDSP (THE CDSEXT OFFSET)
;RETURNS +1 ALWAYS
KLPEXT: LOAD T1,USTYP,(P2) ;GET CONTROLLER TYPE
CAIE T1,.UTHSC ;AN HSC?
CALL DSPBUG ;NO
MOVEI T1,MSCDSP ;YES, GET MSCP CONTROLLER DISPATCH VECTOR
CALLRET UDSEXT(T1) ;GO DO THE WORK
;GET MEMORY ADDRESS FROM CCW
;HERE THROUGH KLPDSP (THE CDSCCA OFFSET)
;ACCEPTS: T1/ CCW WORD
;RETURNS: +1 T1/ ADDRESS, OR ZERO IF NONE
;PRESERVES T1
KLPCCA: LOAD T2,USTYP,(P2) ;GET CONTROLLER TYPE
CAIE T2,.UTHSC ;AN HSC?
CALL DSPBUG ;NO
;MSCCCA - EXTRACT THE PHYSICAL MEMORY ADDRESS FROM A CCW TRANSFER WORD.
;ACCEPTS: T1/ CCW WORD
;RETURNS: +1 T1/ ADDRESS, OR ZERO IF NONE
MSCCCA: LOAD T1,CHADR,T1 ;GET PHYSICAL ADDRESS FROM CCW
RET ;DONE
;RETURN UNIT STATUS - SINCE THERE ARE NO UNITS ON A KL KDB WE ALWAYS FAIL
;ACCEPTS: Q2/ UNIT NUMBER
;RETURNS: +1 FAILED. T1/ 0
; +2 SUCCESS
KLEXT: SETZ T1, ;NOTHING HERE
RET
SUBTTL CI CRAM Parity Error Processing
;CRAM PARITY ERROR (OUTPUT THE BUGxxx)
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
CPEBUG: MOVE T1,CDBCS0(P1) ;GET LAR
CAIL T1,7750 ;PLANNED?
IFSKP.
CALL UNPBUG ;(P1) NO, UNPLANNED CRAM PARITY ERROR
ELSE.
SUBI T1,7750 ;YES, GET OFFSET INTO PLANNED ADDRESSES
CALL @CPEBDP(T1) ;GO DO THE WORK
ENDIF.
RET
CPEBDP: IFIW!IPEBUG ;7750 INTERNAL PORT ERROR
IFIW!STFBUG ;7751 SELF TEST FAILED
IFIW!EP2BUG ;7752 EBUS PARITY ERROR (QUEUES OK)
IFIW!EP1BUG ;7753 EBUS PARITY ERROR (QUEUE MESSED UP)
IFIW!PLIBUG ;7754 PLI PARITY ERROR
IFIW!CBPBUG ;7755 CBUS PARITY ERROR
IFIW!DPEBUG ;7756 DATA PATH ERROR
IFIW!CBABUG ;7757 CBUS AVAILABLE ERROR
IFIW!EBRBUG ;7760 EBUS REQUEST ERROR
IFIW!GCSBUG ;7761 GRANT CSR
IFIW!CERBUG ;7762 CHANNEL ERROR - SHORT WORD COUNT
IFIW!CHEBUG ;7763 SPURIOUS CHANNEL ERROR
IFIW!STABUG ;7764 SPURIOUS TRANSMIT ATTENTION ERROR
IFIW!SRABUG ;7765 SPURIOUS RECEIVE ATTENTION ERROR
IFIW!TTOBUG ;7766 TRANSMITTER TIMEOUT
IFIW!PNDBUG ;7767
IFIW!PNDBUG ;7770
IFIW!PNDBUG ;7771
IFIW!PNDBUG ;7772
IFIW!PNDBUG ;7773
IFIW!PNDBUG ;7774
IFIW!PNDBUG ;7775
IFIW!PNDBUG ;7776
IFIW!PNDBUG ;7777
;CRAM PARITY ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
KLPCPE: MOVE T1,CDBCS0(P1) ;GET LAR
CAIL T1,7750 ;PLANNED?
IFSKP.
CALL KLPUNP ;(Q3,P1/) NO, UNPLANNED CRAM PARITY ERROR
ELSE.
SUBI T1,7750 ;YES, GET OFFSET INTO PLANNED ADDRESSES
CALL @CPEDSP(T1) ;GO DO THE WORK
ENDIF.
RET
CPEDSP: IFIW!CPEDON ;7750 INTERNAL PORT ERROR
IFIW!CPEDON ;7751 SELF TEST FAILED
IFIW!CPEDON ;7752 EBUS PARITY ERROR (QUEUES OK)
IFIW!KLPEP1 ;7753 EBUS PARITY ERROR (QUEUE MESSED UP)
IFIW!CPEDON ;7754 PLI PARITY ERROR
IFIW!CPEDON ;7755 CBUS PARITY ERROR
IFIW!CPEDON ;7756 DATA PATH ERROR
IFIW!CPEDON ;7757 CBUS AVAILABLE ERROR
IFIW!CPEDON ;7760 EBUS REQUEST ERROR
IFIW!CPEDON ;7761 GRANT CSR
IFIW!CPEDON ;7762 CHANNEL ERROR - SHORT WORD COUNT
IFIW!CPEDON ;7763 SPURIOUS CHANNEL ERROR
IFIW!CPEDON ;7764 SPURIOUS TRANSMIT ATTENTION ERROR
IFIW!CPEDON ;7765 SPURIOUS RECEIVE ATTENTION ERROR
IFIW!CPEDON ;7766 TRANSMITTER TIMEOUT
IFIW!CPEDON ;7767
IFIW!CPEDON ;7770
IFIW!CPEDON ;7771
IFIW!CPEDON ;7772
IFIW!CPEDON ;7773
IFIW!CPEDON ;7774
IFIW!CPEDON ;7775
IFIW!CPEDON ;7776
IFIW!CPEDON ;7777
;UNPLANNED CRAM PARITY ERROR (0000-7747)
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
UNPBUG: CALL GETDAT ;(P1/T1,T2,T3,T4) GET OPTIONAL DATA
BUG.(INF,KLPUCP,PHYKLP,HARD,<PHYKLP - Unplanned CRAM parity error>,<<T1,CSR>,<T2,LAR>,<T3,CRAM1>,<T4,CRAM2>>,<
Cause: The port had an unplanned CRAM parity error.
Action: It is possible, though very unlikely, that this is a CI20 microcode
problem. It is more likely that there is CI20 hardware problem. Field
Service should check out the CI20 hardware.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
CRAM1 - contents of first CRAM word
CRAM2 - contents of next CRAM word
>,,<DB%NND>) ;[7.1210]
RET
;UNPLANNED CRAM PARITY ERROR (0000-7747)
; Q3/ PCB
; P1/ CDB
; CALL KLPUNP ;(Q3,P1/)
; RETURN +1
;RESET THE QUEUES (FORGET ABOUT PACKETS), INTERLOCK WORDS ALREADY RESET
KLPUNP: MOVEI T1,.PBQ3I(Q3) ;GET QUEUE'S INTERLOCK WORD
KLPUN1: MOVEI T2,.PBFLI(T1) ;GET FLINK
SUB T2,OFFSET ;WE NEED PHYSICAL ADDRESSES
MOVEM T2,.PBFLI(T1) ;MAKE FLINK POINT AT ITSELF
MOVEM T2,.PBBLI(T1) ;MAKE BLINK POINT AT FLINK
ADDI T1,.PBBLI+1 ;NEXT QUEUE
CAIGE T1,.PBQND(Q3) ;DONE THEM ALL?
JRST KLPUN1 ;NO
BUG.(INF,KLPPLS,PHYKLP,SOFT,<PHYKLP - Packets lost>,,<
Cause: After an unplanned CRAM parity error we can't reliably believe the
queues so we have thrown everything away and started over. This may
cause SCA to do some complaining. This bug should have been preceeded
by a KLPUCP BUGCHK.
Action: See the KLPUCP BUGCHK. This bug is for information only.
>,,<DB%NND>) ;[7.1210]
CALL STKDFQ ;[7126] (P1) RESTOCK DATAGRAM FREE QUEUE
CALL RLDKLP ;(P1) RELOAD AND START THE PORT
RET
;SPURIOUS CHANNEL ATTENTION ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
CHEBUG: CALL GETLGO ;(Q3,P1/T1,T2,T3,T4) GET INFO
LOAD T4,CDVER,(P1) ;GET UCODE VERSION
BUG.(INF,KLPSCE,PHYKLP,HARD,<PHYKLP - Spurious channel error>,<<T1,CSR>,<T4,VER>,<T2,LAR>,<T3,LWORD1>>,<
Cause: Channel Error was asserted but no channel error information was in
the channel logout word.
Action: It is possible, though very unlikely, that this is a CI20 microcode
problem. It is more likely that there is CI20 hardware problem. Field
Service should check out the CI20 hardware.
Data: CSR - Result of last CONI
VER - ucode version
LAR - CRAM's last address read
LWORD1 - Channel logout word 1
>,,<DB%NND>) ;[7.1210]
RET
;EBUS PARITY ERROR (QUEUE MESSED UP)
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
EP1BUG: CALL GETEWD ;(Q3,P1/T1,T2,T3,T4) GET ERROR DATA
BUG.(INF,KLPEBQ,PHYKLP,HARD,<PHYKLP - EBUS parity error>,<<T1,CSR>,<T2,LAR>,<T3,EWORD0>,<T4,EWORD1>>,<
Cause: The port received a data word with bad parity from the KL. This
happened while processing a queue.
Action: It is very likely that there is CI20 hardware problem. Field Service
should check out the CI20 hardware.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
EWORD0 - PCB error word 0
EWORD1 - PCB error word 1
>,,<DB%NND>) ;[7.1210]
RET
;EBUS PARITY ERROR (QUEUE MESSED UP)
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
KLPEP1: TMNN E0RES,(Q3) ;RESPONSE QUEUE HAVE ERROR?
IFSKP.
MOVEI T1,.PBRQI(Q3) ;YES, GET RESPONSE QUEUE INTERLOCK WORD
MOVEI T2,.PBFLI(T1) ;GET THE FLINK
SUB T2,OFFSET ;WE NEED PHYSICAL ADDRESSES
MOVEM T2,.PBFLI(T1) ;MAKE FLINK POINT AT ITSELF
MOVEM T2,.PBBLI(T1) ;MAKE BLINK POINT AT FLINK
ELSE.
MOVE T1,CDBCNI(P1) ;GET CSR AT TIME OF INTERRUPT
TXNE T1,CI.RQA ;NO, RESPONSE AVAILABLE?
CALL KLPRQC ;(Q3,P1) YES, PROCESS THE RESPONSE ENTRIES
ENDIF.
TMNN E0CMD,(Q3) ;COMMAND QUEUE ERROR?
CALLRET CPEDN1 ;(P1) NO, DONE
LOAD T2,E0QUE,(Q3) ;YES, GET COMMAND QUEUE NUMBER
IMULI T2,3 ;3 PCB ENTRIES PER QUEUE
MOVEI T1,.PBQ0I(Q3) ;GET COMMAND QUEUE 0 INTERLOCK WORD
SUB T1,T2 ;MOVE TO THE CORRECT INTERLOCK WORD
CALL CLENCQ ;(T1,Q3,P1) CLEAN ALL QUEUES EXCEPT THE BAD ONE
CALLRET CPEDN1 ;(P1) RESTART THE KLIPA
;INTERNAL PORT ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
IPEBUG: MOVE T1,CDBCNI(P1) ;GET CSR
LOAD T2,CDVER,(P1) ;GET UCODE VERSION
MOVE T3,CDBCS0(P1) ;GET LAR
BUG.(INF,KLPINP,PHYKLP,HARD,<PHYKLP - Internal port error>,<<T1,CSR>,<T2,VER>,<T3,LAR>>,<
Cause: The port has found an inconsistency in an operation it was performing.
Action: It is possible, that this is a CI20 microcode problem. It is more
likely that there is CI20 hardware problem. Field Service should check
out the CI20 and KL10 hardware.
Data: CSR - Result of last CONI
VER - ucode version
LAR - CRAM's last address read
>,,<DB%NND>) ;[7.1210]
RET
;TRANSMITTER TIMEOUT
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
TTOBUG: MOVE T1,CDBCNI(P1) ;GET CSR
MOVE T2,.PBER2(Q3) ;GET TRANSMIT STATUS REGISTER
LOAD T3,CDVER,(P1) ;GET UCODE VERSION
BUG.(INF,KLPTMO,PHYKLP,HARD,<PHYKLP - Transmitter timeout>,<<T1,CSR>,<T2,REG>,<T3,VER>>,<
Cause: Someone is hogging the CI. The LINK module could not transmit over the
CI due to carrier detect being continuously asserted.
Action: It is likely that there is a problem with this system's CI20 link
module. It is more likely that there is some other system on the CI
with broken hardware. Field Service should check out all systems
attached to the CI.
Data: CSR - Result of last CONI
REG - Transmit status register
VER - ucode version
>,,<DB%NND>) ;[7.1210]
RET
;SELF TEST FAILED
;ACCEPTS: P1/ CDB
;RETURNS: +1
STFBUG: MOVE T1,CDBCNI(P1) ;GET CSR
LOAD T2,CDVER,(P1) ;GET UCODE VERSION
MOVE T3,CDBCS0(P1) ;GET LAR
BUG.(INF,KLPFST,PHYKLP,HARD,<PHYKLP - Self test failed>,<<T1,CSR>,<T2,VER>,<T3,LAR>>,<
Cause: The port had a failure during its self test.
Action: It is possible, though very unlikely, that this is a CI20 microcode
problem. It is more likely that there is CI20 hardware problem. Field
Service should check out the CI20 hardware.
Data: CSR - Result of last CONI
VER - ucode version
LAR - CRAM's last address read
>,,<DB%NND>) ;[7.1210]
RET
;EBUS PARITY ERROR (QUEUES OK)
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
EP2BUG: CALL GETLGO ;(Q3,P1/T1,T2,T3,T4) GET INFO
MOVE T3,.PBER0(Q3) ;GET PCB ERROR WORD 0
BUG.(INF,KLPEBP,PHYKLP,HARD,<PHYKLP - EBUS parity error>,<<T1,CSR>,<T2,LAR>,<T3,EWORD0>>,<
Cause: The port received a data word with bad parity from the KL. This did
not happen while processing a queue.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware, paying particular attention to
devices interfaced to the EBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
EWORD0 - PCB error word 0
>,,<DB%NND>) ;[7.1210]
RET
;PLI PARITY ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
PLIBUG: CALL GETEWD ;(Q3,P1/T1,T2,T3,T4) GET INFO
BUG.(INF,KLPPPE,PHYKLP,HARD,<PHYKLP - PLI parity error>,<<T1,CSR>,<T2,LAR>>,<
Cause: The port detected bad parity on a PLI BUS read.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 hardware.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
>,,<DB%NND>) ;[7.1210]
RET
;CHANNEL ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
CERBUG: CALL GETEWD ;(Q3,P1/T1,T2,T3,T4) GET INFO
BUG.(INF,KLPSWC,PHYKLP,HARD,<PHYKLP - Short word count>,<<T1,CSR>,<T2,LAR>,<T3,LWORD1>,<T4,LWORD2>>,<
Cause: The port detected a short word count CBUS channel error.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware, paying particular attention to
devices interfaced to the EBUS and CBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
EWORD1 - PCB error word 1
EWORD2 - PCB error word 2
>,,<DB%NND>) ;[7.1210]
RET
;CBUS PARITY ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
CBPBUG: CALL GETEWD ;(Q3,P1/T1,T2,T3,T4) GET INFO
BUG.(INF,KLPCBS,PHYKLP,HARD,<PHYKLP - CBUS parity error>,<<T1,CSR>,<T2,LAR>,<T3,LWORD1>,<T4,LWORD2>>,<
Cause: The CI20 had a CBUS parity error.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware, paying particular attention to
devices interfaced to the CBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
EWORD1 - PCB error word 1
EWORD2 - PCB error word 2
>,,<DB%NND>) ;[7.1210]
RET
;SPURIOUS TRANSMIT ATTENTION ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
STABUG: MOVE T1,CDBCNI(P1) ;GET CSR
LOAD T2,CDVER,(P1) ;GET UCODE VERSION
MOVE T3,CDBCS0(P1) ;GET LAR
MOVE T4,.PBER2(Q3) ;GET TRANSMIT STATUS REGISTER
BUG.(INF,KLPTAE,PHYKLP,HARD,<PHYKLP - Spurious transmit attention error>,<<T1,CSR>,<T2,VER>,<T3,LAR>,<T4,REG>>,<
Cause: The port found ATTENTION up before the Transmit Packet function
completed.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 hardware.
Data: CSR - Result of last CONI
VER - ucode version
LAR - CRAM's last address read
REG - Transmit status register
>,,<DB%NND>) ;[7.1210]
RET
;SPURIOUS RECEIVE ATTENTION ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
SRABUG: MOVE T1,CDBCNI(P1) ;GET CSR
LOAD T2,CDVER,(P1) ;GET UCODE VERSION
MOVE T3,CDBCS0(P1) ;GET LAR
MOVE T4,.PBER2(Q3) ;GET RECEIVE STATUS REGISTER
BUG.(INF,KLPRAE,PHYKLP,HARD,<PHYKLP - Spurious receive attention error>,<<T1,CSR>,<T2,VER>,<T3,LAR>,<T4,REG>>,<
Cause: The port found ATTENTION up but the packet was not totally stored in
the receive buffers.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 hardware.
Data: CSR - Result of last CONI
VER - ucode version
LAR - CRAM's last address read
>,,<DB%NND>) ;[7.1210]
RET
;DATA PATH ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
DPEBUG: CALL GETEWD ;(Q3,P1/T1,T2,T3,T4) GET INFO
BUG.(INF,KLPDPP,PHYKLP,HARD,<PHYKLP - Data path error>,<<T1,CSR>,<T2,LAR>,<T3,WORD0>,<T4,EWORD1>>,<
Cause: The CI20 port's mover/formatter detected a parity error.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 hardware.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
EWORD0 - PCB error word 0
EWORD1 - PCB error word 1
>,,<DB%NND>) ;[7.1210]
RET
;CBUS AVAILABLE ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
CBABUG: MOVE T1,CDBCNI(P1) ;GET CSR
MOVE T2,CDBCS0(P1) ;GET LAR
DMOVE T3,.PBER3(Q3) ;GET PCB ERROR WORDS 3 & 4
BUG.(INF,KLPCBN,PHYKLP,HARD,<PHYKLP - CBUS not available>,<<T1,CSR>,<T2,LAR>,<T3,EWORD3>,<T4,EWORD4>>,<
Cause: The port was not able to get the CBUS. It timed out waiting for the
CBUS to become available after asking for it.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware, paying particular attention to
devices interfaced to the EBUS and CBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
EWORD3 - PCB error word 3
EWORD4 - PCB error word 4
>,,<DB%NND>) ;[7.1210]
RET
;EBUS REQUEST ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
EBRBUG: CALL GETDAT ;(P1/T1,T2,T3,T4) GET OPTIONAL DATA
BUG.(INF,KLPERE,PHYKLP,HARD,<PHYKLP - EBUS request error>,<<T1,CSR>,<T2,LAR>>,<
Cause: The CI20 port could not get the EBUS. It timed out waiting for the
EBUS to become available.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware, paying particular attention to
devices interfaced to the EBUS and CBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
>,,<DB%NND>) ;[7.1210]
RET
;GRANT CSR
;ACCEPTS: P1/ CDB
;RETURNS: +1
GCSBUG: CALL GETDAT ;(P1/T1,T2,T3,T4) GET DATA
BUG.(INF,KLPCSR,PHYKLP,HARD,<PHYKLP - Grant CSR error>,<<T1,CSR>,<T2,LAR>,<T3,CRAM1>,<T4,CRAM2>>,<
Cause: The port timed out waiting for Grant CSR.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware, paying particular attention to
devices interfaced to the EBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
CRAM1 - contents of first CRAM word
CRAM2 - contents of next CRAM word
>,,<DB%NND>) ;[7.1210]
RET
;CPE PROCESSING DONE
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
CPEDON: CALL CLNKLP ;(Q3,P1/) CLEANUP THE QUEUES
CPEDN1: CALL STRKLP ;(P1) START THE KLIPA
CALLRET RLDKLP ;(P1) FAILED, RELOAD IT
RET
;UNDEFINED PLANNED CRAM PARITY ERROR
;ACCEPTS: P1/ CDB
;RETURNS: +1
PNDBUG: CALL GETDAT ;(P1/T1,T2,T3,T4) GET DATA
BUG.(INF,KLPUPC,PHYKLP,HARD,<PHYKLP - Undefined planned CRAM parity error>,<<T1,CSR>,<T2,LAR>,<T3,CRAM1>,<T4,CRAM2>>,<
Cause: The port had a planned CRAM parity error but it is not defined.
Action: This problem can be caused by a CI20 microcode problem. It is more
likely that there is CI20 hardware problem. Field Service should check
out the CI20 and KL10 hardware, paying particular attention to devices
interfaced to the EBUS and CBUS.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
CRAM1 - contents of first CRAM word
CRAM2 - contents of next CRAM word
>)
RET
;FREE QUEUE ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
KLPFQE: MOVE T1,.PBPIA(Q3) ;FREE Q ERROR, GET PIA
CONO KLP,CI.EPE+CO.BTS+CI.FQE(T1) ;CLEAR FREE Q ERROR, EBUS PARITY
XMOVEI T1,.PBDFI(Q3) ;GET INTERLOCK WORD OF DATAGRAM FREE QUEUE
CALL CHKMPT ;(T1) IS DATAGRAM FREE QUEUE EMPTY?
IFNSK.
BUG.(INF,CIPDFQ,PHYKLP,SOFT,<PHYKLP - Datagram free queue empty>,,<
Cause: The CI20 port found the datagram free queue empty.
Action: It is likely that there is CI20 microcode or monitor software problem.
It is less likely that there is a CI20 hardware problem. If this
problem can be reproduced, change this to a BUGHLT and send in an SPR
with a dump and instructions on how to reproduce the problem.
>,,<DB%NND>) ;[7.1210]
MOVEI T1,1 ;GET A DATAGRAM BUFFER
CALL SC.ALD ;(T1/T1) FROM SCA
JRST KLPFQ1 ;COULDN'T
MOVE Q2,T1 ;POSITION THE BUFFER ADDRESS
CALL RETDG ;(Q2,Q3) PUT IT ON THE DATAGRAM FREE QUEUE
KLPFQ1: MOVEI T1,1 ;COUNT A DG FREE QUEUE ERROR
JRST KLPFQ3 ;MOVE ON
ENDIF.
XMOVEI T1,.PBMFI(Q3) ;GET INTERLOCK WORD OF MESSAGE FREE QUEUE
CALL CHKMPT ;(T1) IS MESSAGE FREE QUEUE EMPTY
IFNSK.
BUG.(INF,CIPMFQ,PHYKLP,SOFT,<PHYKLP - Message free queue empty>,,<
Cause: The port found the message free queue empty.
Action: It is likely that there is CI20 microcode or monitor software problem.
It is less likely that there is a CI20 hardware problem. If this
problem can be reproduced, change this to a BUGHLT and send in an SPR
with a dump and instructions on how to reproduce the problem.
>)
MOVEI T1,1 ;GET A MESSAGE BUFFER
CALL SC.ABF ;(T1/T1) FROM SCA
JRST KLPFQ2 ;COULDN'T
MOVE Q2,T1 ;POSITION THE BUFFER ADDRESS
CALL RETMSG ;(Q2,Q3) PUT IT ON THE MESSAGE FREE QUEUE
KLPFQ2: MOVE T1,[1,,0] ;COUNT A MESSAGE FREE QUEUE ERROR
KLPFQ3: ADDM T1,CDBFQE(P1) ;COUNT IT IN THE CDB FOR THIS PORT
ENDIF.
RET
;MBUS ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
;NOTE: DO NOT PROCESS ANY QUEUE
KLPMBE: CALL GETDAT ;(P1/T1,T2,T3,T4) GET DATA
BUG.(INF,KLPMBS,PHYKLP,HARD,<PHYKLP - MBUS error>,<<T1,CSR>,<T2,LAR>,<T3,CRAM1>,<T4,CRAM2>>,<
Cause: Multiple MBUS drivers simultaneously accessing MBUS.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 and KL10 hardware.
Data: CSR - Result of last CONI
LAR - CRAM's last address read
CRAM1 - contents of first CRAM word
CRAM2 - contents of next CRAM word
>,,<DB%NND>) ;[7.1210]
CALL STRKLP ;(Q3,P1) RESTART THE KLIPA
CALLRET RLDKLP ;(P1) FAILED, ASK FOR A RELOAD
RET
;TRANSMITTER BUFFER PARITY ERROR
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1
KLPTBP: MOVE T1,CDBCNI(P1) ;GET CSR
MOVE T2,.PBER2(Q3) ;GET TRANSMIT STATUS REGISTER
SETZM .PBER2(Q3) ;CLEAR IT
LOAD T3,CDVER,(P1) ;GET UCODE VERSION
BUG.(INF,KLPTPE,PHYKLP,HARD,<PHYKLP - Transmit buffer parity error>,<<T1,CSR>,<T2,REG>,<T3,VER>>,<
Cause: A bit was dropped or picked up in the TRANSMIT BUFFER or the TRANSMIT
DATA BUS.
Action: It is likely that there is CI20 hardware problem. Field Service should
check out the CI20 KL10 hardware.
Data: CSR - Result of last CONI
REG - Transmit status register
VER - ucode version
>,,<DB%NND>) ;[7.1210]
RET
;MAKE A SPEAR ENTRY
;ACCEPTS: P1/CDB
; Q3/PCB
;RETURNS: +1
;NOTE: CALLED AT INTERRUPT LEVEL WITH UCODE STOPPED
REPORT: STKVAR <EBLOK>
CONO KLP,CO.LAR ;SET THE LAR BIT
DATAI KLP,T1 ;READ LAR
LOAD T1,DTLAR,T1 ;GET LAR
MOVEM T1,CDBCS0(P1) ;SAVE IT
CONO KLP, ;CLEAR LAR BIT
MOVX T1,1B0!1B13 ;SET TO READ
DATAO KLP,T1 ; LH DATA
DATAI KLP,T2 ;READ CRAM LH DATA
LOAD T2,DTCRM,T2 ;GET DATA
MOVEM T2,CDBCS1(P1) ;SAVE
TXZ T1,1B13 ;SET TO
DATAO KLP,T1 ; READ RH
DATAI KLP,T2 ;READ RH DATA
LOAD T2,DTCRM,T2 ;GET DATA
MOVEM T2,CDBCS2(P1) ;SAVE
DMOVE T1,KIEPT+KLPRH2*4 ;GET LOGOUT AREA
DMOVEM T1,CDBLG0(P1) ;SAVE IN CDB
MOVE T1,KIEPT+KLPRH2*4+2
MOVEM T1,CDBLG2(P1)
MOVE T1,.PBCCW(Q3) ;PORT'S CCW
MOVEM T1,CDBECW(P1) ;SAVE
MOVEI T1,KP%LEN ;TOTAL BLOCK LENGTH
MOVEI T2,KP%SIZ ;NON STRING DATA SIZE
CALL ALCSEB ;(T1,T2/T1) TRY TO GET ERROR BLOCK
RET ;NONE AVAILABLE.
MOVEM T1,EBLOK ;SAVE LOC OF ERROR BLOCK
MOVE T2,[-NKPTAB,,KPTAB] ;FILL IN THE DATA
CALL SEBCPY ;(T1,T2)
JFCL
MOVE T1,EBLOK ;RECOVER ERROR BLOCK
CALL QUESEB ;(T1) HAND IT TO SPEAR
RET
ENDSV.
;FORMAT DEFINITION OF KLIPA ERROR EVENT (ERROR.SYS ENTRY 244)
KPTAB: SEBPTR 0,SBTEVC,SEC%KP ;BLOCK TYPE
SEBPTR KP%CSR,SBTWD,CDBCNI(P1) ;CSR
SEBPTR KP%VER,SBTWD,CDBVER(P1) ;VERSION WORD
SEBPTR KP%DSP,SBTWD,KLPDIS ;DISPOSITION (0 IF RESTART,
; TAD OF LAST ERROR IF ABORTED)
SEBPTR KP%CRA,SBTWD,CDBCS0(P1) ;CRAM ADDRESS
SEBPTR KP%CRD,SBTWD,CDBCS1(P1) ;LH CRAM DATA
SEBPTR KP%CRD+1,SBTWD,CDBCS2(P1) ;RH CRAM DATA
SEBPTR KP%LG0,SBTWD,CDBLG0(P1) ;LOGOUT WORD 0
SEBPTR KP%LG1,SBTWD,CDBLG1(P1) ;LOGOUT WORD 1
SEBPTR KP%LG2,SBTWD,CDBLG2(P1) ;LOGOUT WORD 2
SEBPTR KP%ECW,SBTWD,CDBECW(P1) ;PORT'S CCW
SEBPTR KP%PE0,SBTWD,.PBER0(Q3) ;PCB'S ERROR WORD 0
SEBPTR KP%PE1,SBTWD,.PBER1(Q3) ;PCB'S ERROR WORD 1
NKPTAB==.-KPTAB
;GET CSR, LAR, AND 2 UCODE DATA WORDS
;ACCEPTS: P1/ CDB
;RETURNS: +1 T1/ CSR
; T2/ LAR
; T3/ UCODE 1ST DATA WORD
; T4/ UCODE 2ND DATA WORD
GETDAT: MOVE T1,CDBCNI(P1) ;GET CSR
MOVE T2,CDBCS0(P1) ;GET LAR
DMOVE T3,CDBCS1(P1) ;GET DATA WORDS
RET
;GET CSR, LAR, AND 2 CHANNEL LOGOUT WORDS
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1 T1/ CSR
; T2/ LAR
; T3/ CHANNEL LOGOUT WORD 1
; T4/ CHANNEL LOGOUT WORD 2
GETLGO: MOVE T1,CDBCNI(P1) ;GET CSR
MOVE T2,CDBCS0(P1) ;GET LAR
DMOVE T3,.PBER3(Q3) ;GET CHANNEL LOGOUT WORDS
RET
;GET CSR, LAR, AND THE 2 PCB ERROR WORDS
;ACCEPTS: Q3/ PCB
; P1/ CDB
;RETURNS: +1 T1/ CSR
; T2/ LAR
; T3/ ERROR WORD 0
; T4/ ERROR WORD 1
GETEWD: MOVE T1,CDBCNI(P1) ;GET CSR
MOVE T2,CDBCS0(P1) ;GET LAR
DMOVE T3,.PBER0(Q3) ;GET ERROR WORDS 0 & 1
RET
SUBTTL States of the KLIPA -- Commentary
COMMENT #
IPALOD.EXE
The program BS:<SYSTEM>IPALOD.EXE consists of 2 very distinct pieces: 1) a
runnable program, and 2) the CI20 microcode. At system startup the monitor
reads the microcode into resident memory; the beginning address of the
microcode is stored in location UCDADR. Later during startup, the monitor runs
IPALOD.EXE, starting it at a special entry point (offset 3 in its entry
vector). IPALOD.EXE does a DIAG% which causes the microcode to be loaded into
the CI20. A second DIAG% is done which causes the monitor to start the CI20.
During this sequence IPALOD.EXE outputs the following message:
[IPALOD: Loading CI20 microcode x.y(z)] [OK]
If IPALOD.EXE is run by a user during timesharing it outputs the following
message:
[IPALOD: Loading resident CI20 microcode x.y(z)] [OK]
It is not possible to load a different version of the CI20 microcode while the
system is running; all you can do is reload the version which was in IPALOD.EXE
when the system was booted. It was done this way so as to not cause existing
documentation to change while still gaining all the advantages of having the
CI20 microcode in resident memory so it can be loaded at any time, e.g. at
interrupt or scheduler level.
Port States
The port is always in 1 of the following 3 states:
1. uninitialized - not running
2. disabled - running, accepting local commands, neither sending nor
receiving on the wire
3. enabled - fully operational
CONO KLP,xxxxxx
If you execute a CONO instruction while the port is enabled and you want it to
remain enabled, you must include the bits CO.ENA and CO.MRN and the port's
priority interrupt assignment (PIA); CO.BTS=CO.ENA+CO.MRN. An example is the
processing of a response queue available interrupt; when you do the CONO which
turns off the response queue available bit, you must heed the above and include
CO.BTS and the PIA.
On the other hand, if the port is diabled or stopped and you want to process
the response queue but leave the port disblaed or stopped, when you do the CONO
which turns off the response queue available bit, you must not include CO.BTS.
See routine KLPRAQ and its special entry point KLPRQC for precise details.
Cleaning/Resetting the Queues
There are times when you want to reload the port and start fresh, examples are
1) CRAM parity error interrupt from the port, 2) IPALOD.EXE is run, and 3)
TOPS-20 believes the port is sick. When such events occur all packets on the
command queues and the response queue must be processed. In order to do this
the port must first be stopped, SCA must be told that all connections have been
broken, the queue interlock words set to -1, and then process the packets.
In most cases nothing need be done with the packets on the free queues. If the
packets need to be discarded or given back to SCA, then the datagram free queue
must be restocked before the port is start again.
Dumping the CI20
In PHYKLP.MAC and MEXEC.MAC there are references to BS:<SYSTEM>IPADMP.EXE and
dumping the CI20. Once upon a time Job 0 did the loading and dumping of the
port; this was a loser. The microcode is now loaded by the monitor but we
haven't done the work yet to dump the port directly from the monitor. We will
in the future.
#
SUBTTL States of the KLIPA -- Dispatch Tables
;DEFINED IN PHYPAR, HERE FOR REFERENCE
REPEAT 0,<
DEFSTR (CFSTA,CDBFLG,5,6) ;STATE OF THE PORT
CHNUNK==0 ;unknown (system startup)
CHNSTP==1 ;stopped (and needs to be started)
CHNNRL==2 ;needs to have ucode reloaded
CHNRIP==3 ;ucode reload in progress
CHNNDM==4 ;needs to have dump taken
CHNDIP==5 ;dump in progress
CHNMAI==6 ;maintenace mode (owned by diagnostic)
CHNDED==7 ;dead (we are not trying to start it)
CHNRUN==10 ;running
CHNRLC==11 ;ucode reload complete
CHNDMC==12 ;ucode dump complete
>
;KLPINT (INTERRUPT SERVICE)
INTSTA: IFIW!KLPIN2 ;CHNUNK - unknown (system startup)
IFIW!KLPIN2 ;CHNSTP - stopped (and needs to be started)
IFIW!KLPIN2 ;CHNNRL - needs to have ucode reloaded
IFIW!KLPIN2 ;CHNRIP - ucode reload in progress
IFIW!KLPIN2 ;CHNNDM - needs to have dump taken
IFIW!KLPIN2 ;CHNDIP - dump in progress
IFIW!KLPIN2 ;CHNMAI - maintenace mode (owned by diagnostic)
IFIW!KLPIN2 ;CHNDED - dead (we are not trying to start it
IFIW!KLPIN1 ;CHNRUN - running
IFIW!KLPIN2 ;CHNRLC - reload complete
IFIW!KLPIN2 ;CHNDMC - dump complete
;KLPCHK (ONCE-A-SECOND CHECKER)
CHKSTA: IFIW!R ;CHNUNK - unknown (system startup)
IFIW!R ;CHNSTP - stopped (and needs to be started)
IFIW!KLPCH2 ;CHNNRL - needs to have ucode reloaded
IFIW!KLPCH3 ;CHNRIP - ucode reload in progress
IFIW!KLPCH4 ;CHNNDM - needs to have dump taken
IFIW!KLPCH5 ;CHNDIP - dump in progress
IFIW!R ;CHNMAI - maintenace mode (owned by diagnostic)
IFIW!R ;CHNDED - dead (we are not trying to start it
IFIW!KLPCH1 ;CHNRUN - running
IFIW!R ;CHNRLC - reload complete
IFIW!R ;CHNDMC - dump complete
;RLDKLP (RELOAD THE KLIPA UCODE)
RLDSTA: IFIW!RLDKL1 ;CHNUNK - unknown (system startup)
IFIW!RLDKL1 ;CHNSTP - stopped (and needs to be started)
IFIW!R ;CHNNRL - needs to have ucode reloaded
IFIW!R ;CHNRIP - ucode reload in progress
IFIW!R ;CHNNDM - needs to have dump taken
IFIW!R ;CHNDIP - dump in progress
IFIW!RLDKL1 ;CHNMAI - maintenace mode (owned by diagnostic)
IFIW!R ;CHNDED - dead (we are not trying to start it
IFIW!RLDKL1 ;CHNRUN - running
IFIW!R ;CHNRLC - reload complete
IFIW!RLDKL1 ;CHNDMC - dump complete
;DMPKLP (DUMP THE KLIPA UCODE)
DMPSTA: IFIW!DMPKL1 ;CHNUNK - unknown (system startup)
IFIW!DMPKL1 ;CHNSTP - stopped (and needs to be started)
IFIW!R ;CHNNRL - needs to have ucode reloaded
IFIW!R ;CHNRIP - ucode reload in progress
IFIW!R ;CHNNDM - needs to have dump taken
IFIW!R ;CHNDIP - dump in progress
IFIW!DMPKL1 ;CHNMAI - maintenace mode (owned by diagnostic)
IFIW!R ;CHNDED - dead (we are not trying to start it
IFIW!DMPKL1 ;CHNRUN - running
IFIW!R ;CHNRLC - reload complete
IFIW!R ;CHNDMC - dump complete
SUBTTL States of the KLIPA -- Loading the KLIPA -- KLPRIP (Load from User)
;RELOAD/DUMP-IN-PROGRESS (CALLED FROM DIAG%)
;ACCEPTS: P1/ CDB
;RETURNS: +1
KLPRIP::SAVEPQ
MOVE T1,FORKX ;GET FORK NUMBER
STOR T1,CSLDF,(P1) ;SAVE IT
MOVE T1,USRNAM+1 ;GET USER NAME
MOVEM T1,CDBLDU(P1) ;SAVE IT
MOVEI P6,CHNRIP ;GET RELOAD-IN-PROGRESS CODE
JRST KLPDI1 ;DO COMMON STUFF
KLPDIP::SAVEPQ
MOVE T1,FORKX ;GET FORK NUMBER
STOR T1,CSDMF,(P1) ;SAVE IT
BUG.(INF,KLPDUM,PHYKLP,SOFT,<PHYKLP - CI20 ucode dump in progress>,<<T1,DFORK>>,<
Cause: The CI20 is being dumped.
Action: No action required. This bug is for information only.
Data: DFORK - fork doing the dump
>,,<DB%NND>) ;[7.1210]
MOVE T1,USRNAM+1 ;GET USER NAME
MOVEM T1,CDBDMU(P1) ;SAVE IT
MOVEI P6,CHNDIP ;GET DUMP-IN-PROGRESS CODE
KLPDI1: CIOFF
CALL DISKLP ;() PUT KLIPA IN DISABLED STATE
CONO KLP,CO.CPT ;[7134] FAILED, SHOOT IT
STOR P6,CFSTA,(P1) ;SET CHANNEL STATE
MOVE Q3,CDBPCB(P1) ;GET PCB
CALL CIGONE ;(Q3,P1/) RESET ALL CI ACTIVITY
CALL LODUCD ;() LOAD UCODE
CION
RET
SUBTTL States of the KLIPA -- Loading the KLIPA -- LODUCD (Load Microcode)
;LOAD CI UCODE INTO PORT
; CALL LODUCD ;()
; RETURN +1
LODUCD: MOVE T1,TODCLK ;GET NOW
ADDI T1,IPRTIM ;GET IN-PROGRESS TIMEOUT TIME
MOVEM T1,UCDTIM ;RESET IT
SKIPN T2,UCDADR ;GET UCODE ADDRESS
RET ;NOTHING THERE
CONO KLP,CO.CPT ;[7134] MAKE SURE PORT IS STOPPED
DO.
MOVE T1,(T2) ;GET MICROWORD
CAMN T1,[-1] ;AT THE END?
EXIT. ;YES
DATAO KLP,T1 ;NO
DATAO KLP,1(T2)
TXZ T1,1B13
DATAO KLP,T1
DATAO KLP,2(T2)
ADDI 2,3
JRST TOP.
ENDDO.
AOS T2
MOVE T1,(T2) ;GET UCODE MAJOR VERSION NUMBER
STOR T1,UCMAJ ;SAVE IT
AOS T2
MOVE T1,(T2) ;GET UCODE MINOR VERSION NUMBER
STOR T1,UCMIN ;SAVE IT
AOS T2
MOVE T1,(T2) ;GET UCODE EDIT NUMBER
STOR T1,UCEDT ;SAVE IT
MOVE T2,CHNTAB+KLPRH2 ;GET CDB
STOR T1,CDVER,(T2) ;SAVE EDIT NUMBER IN CDB
CAML T1,KLPVWD ;[7.1134] Was it at the minimum we expect?
IFSKP. ;[7.1134] Nope
BUG.(CHK,KLPUMV,PHYKLP,SOFT,<Unexpected CI20 microcode version>,<<T1,AVER>,<KLPVWD,EVER>>,<
Cause: The monitor has an assembled-in value of the CI20 ucode which it is
expecting to load. The ucode just loaded is a lower version number.
Action: Find a proper IPALOD.EXE and put it into BS:<SYSTEM>.
Data: AVER - actual version loaded
EVER - expected version
>,,<DB%NND>) ;[7.1238][7.1134]
RET ;[7.1134] Return
ENDIF. ;[7.1134]
BUG.(INF,KLPLOA,PHYKLP,SOFT,<PHYKLP - CI20 ucode loaded>,<<T1,EDIT>>,<
Cause: BS:<SYSTEM>IPALOD.EXE was run or the monitor initiated the reload.
Action: No action required. This bug is for information only.
Data: EDIT - edit number of microcode
>,,<DB%NND>) ;[7.1210][7.1134]
RET
SUBTTL States of the KLIPA -- Loading the KLIPA -- RLDKLP (Load from Monitor)
;REQUEST A RELOAD OF THE KLIPA MICROCODE
;ACCEPTS: P1/ CDB
;RETURNS: +1
RLDKLP: SKIPE CIBUGX
BUG.(INF,KLPRRQ,PHYKLP,HARD,<PHYKLP - CI20 ucode reload requested>,,<
Cause: TOPS-20 has decided the CI20 microcode needs to be reloaded.
Action: No action required. The CI20 microcode is reloaded.
>,,<DB%NND>) ;[7.1210]
LOAD T1,CFSTA,(P1) ;GET STATE OF PORT
CALLRET @RLDSTA(T1) ;TAKE APPROPRIATE ACTION
RLDKL1: MOVEI T1,CHNNRL ;GET NEEDS-RELOADING CODE
JRST DMPKL2 ;DO COMMON STUFF
;REQUEST A DUMP OF THE KLIPA MICROCODE
;ACCEPTS: P1/ CDB
;RETURNS: +1
DMPKLP: BUG.(INF,KLPDRQ,PHYKLP,HARD,<PHYKLP - CI ucode dump requested>,,<
Cause: TOPS-20 has decided the CI20 microcode needs to be dumped.
Action: No action required. The CI20 microcode is going to be dumped.
>,,<DB%NND>) ;[7.1210]
LOAD T1,CFSTA,(P1) ;GET STATE OF PORT
CALLRET @DMPSTA(T1) ;TAKE APPROPRIATE ACTION
DMPKL1: MOVEI T1,CHNNDM ;GET NEEDS-DUMPING CODE
DMPKL2: STOR T1,CFSTA,(P1) ;SET NEW PORT STATE
CALL LODUCD ;(/)LOAD MICROCODE
CALL KLPRLC ;(P1/) SAY RELOAD IS DONE
RET
SUBTTL States of the KLIPA -- Loading the KLIPA -- KLPRLC (Reload Complete)
;RELOAD-COMPLETE (CALLED FROM DIAG%)
;ACCEPTS: P1/ CDB
;RETURNS: +1
KLPRLC::SAVEPQ
CIOFF
MOVEI T1,CHNRLC ;GET RELOAD-COMPLETE CODE
STOR T1,CFSTA,(P1) ;SET STATE OF PORT
CALL STRKLP ;(P1) START THE KLIPA
IFNSK.
CALL STRKLP ;FAILED, WE'LL TRY ONE MORE TIME
NOP ;TOO BAD
ENDIF.
CION
RET
;DUMP-COMPLETE (CALLED FROM DIAG%)
;ACCEPTS: P1/ CDB
;RETURNS: +1
KLPDMC::SAVEPQ
CIOFF
MOVEI T1,CHNDMC ;GET DUMP-COMPLETE CODE
STOR T1,CFSTA,(P1) ;SET STATE OF PORT
CALL RLDKLP ;(P1) ASK FOR A RELOAD
CION
RET
SUBTTL States of the KLIPA -- Stopping the KLIPA -- STPKLP (Stop KLIPA)
;Stop the KLIPA
;ACCEPTS: P1/ CDB
;RETURNS: +1
STPKLP: BUG.(INF,KLPSTP,PHYKLP,SOFT,<PHYKLP - CI20 stopped>,,<
Cause: TOPS-20 has stopped the CI20.
Action: No action required. This bug is for information only.
>,,<DB%NND>) ;[7.1210]
CALL DISKLP ;() PUT KLIPA IN DISABLED STATE
NOP ;[7223] WE TRIED TO BE GRACEFUL
CONO KLP,CO.CPT ;[7134],[7223] SHOOT IT
MOVEI T1,CHNSTP ;GET STOPPED CODE
STOR T1,CFSTA,(P1) ;SET NEW PORT STATE
RET
;XCKLP - STOP THE CI
; CALL XCKLP ;(/)
; RETURNS +1
XCKLP:: SKIPE CIHERE ;[7134] CI IN USE?
CONO KLP,CO.CPT ;[7134] YES, Do it
RET ;[7134]
SUBTTL States of the KLIPA -- Stopping the KLIPA -- DISKLP (Disable KLIPA)
;Get KLIPA into disabled state
;RETURNS: +1 FAILED. T1/ ERROR CODE
; +2 SUCCEEDED OR ALREADY NOT RUNNING
;NOTE: THIS ROUTINE LOSES THE PIA
DISKLP: CONSO KLP,CO.MRN ;IS THE UCODE RUNNING?
RETSKP ;NO
;Enter here ONLY if you know where the port will start running if it is already stopped
DISKL2: CONO KLP,CO.DIS+CO.MRN ;YES, GET PORT INTO DISABLED STATE
MOVEI T2,5000 ;LOOP COUNT
DISKL1: CONI KLP,T1 ;GET CSR
TXNE T1,CI.DCP ;DISABLE COMPLETE?
RETSKP ;YES
SOJG T2,DISKL1 ;NO, WAIT A BIT LONGER?
RETBAD (KLPX14) ;NO
SUBTTL States of the KLIPA -- Starting the KLIPA -- STRKLP (Start KLIPA)
;Start the KLIPA
;ACCEPTS: P1/ CDB
;RETURNS: +1 FAILED. T1/ ERROR CODE
; +2 SUCCEEDED
STRKLP: SAVEAC <Q3>
SETZM CIWIRA ;[7238] ASSUME BOTH WIRES
SETZM CIWIRB ;[7238] ARE GOOD AT THE BEGINNING
MOVE Q3,CDBPCB(P1) ;GET PCB
CALL RSTEWD ;(Q3) RESET THE PCB ERROR WORDS
CALL KIKKLP ;(P1) KICK THE KLIPA
IFNSK.
;KLIPA restart has failed
SKIPE KLPFAI ;DID THE LAST START ATTEMPT FAIL?
IFSKP.
SETOM KLPFAI ;NO, SAY WE FAILED THIS TIME
BUG.(INF,KLPRSF,PHYKLP,HARD,<PHYKLP - CI restart failed>,<<T1,ERROR>>,<
Cause: TOPS-20 tried to restart the CI20 and the procedure failed.
Action: Look back in the console log to see what kind of problems there have
been with the CI20 port. There probably is a hardware problem with the
CI20 and Field Service should be called.
Data: ERROR - error code for failure
>,,<DB%NND>) ;[7.1210]
RETBAD ( ) ;FAILED
ENDIF.
;This is the second consecutive start attempt to fail
SETZM KLPFAI ;RESET THE FAILED FLAG
MOVEI T2,CHNDED ;GET DEAD CODE
STOR T2,CFSTA,(P1) ;SET NEW STATE
CONO KLP,CO.CPT ;[7134] MAKE SURE
BUG.(CHK,KLPDED,PHYKLP,HARD,<PHYKLP - CI20 is dead, no longer trying to start it>,<<T1,ERROR>>,<
Cause: TOPS-20 tried to restart the CI20 and the procedure failed twice in a
row. The CI20 is being left in its current state.
Action: Look back in the console log to see what kind of problems there have
been with the CI20 port. There probably is a hardware problem with the
CI20 and Field Service should be called.
Data: ERROR - error code for failure
>,,<DB%NND>) ;[7.1210]
RETSKP ;DONE
ENDIF.
;.....
;.....
;KLIPA has been restarted
MOVE T1,.PBPIA(Q3) ;GET PI ASSIGNMENT
CONO KLP,CO.BTS(T1) ;TURN ON INTERRUPTS
BUG.(INF,KLPSTR,PHYKLP,HARD,<PHYKLP - CI20 started>,,<
Cause: TOPS-20 has restarted the CI20.
Action: No action required. This BUG is for information only.
>,,<DB%NND>) ;[7.1210]
SETZM KLPFAI ;INDICATE KLIPA STARTED OK
MOVEI T1,CHNRUN ;GET RUNNING CODE
STOR T1,CFSTA,(P1) ;SET STATE OF PORT
SETZM KLPRDY ;NEED TO SEND REQIDS TO ALL NODES
CALL PHYSTC ;() TELL DISK SERVICE
RETSKP
SUBTTL States of the KLIPA -- Starting the KLIPA -- KIKKLP (Ready KLIPA)
;Get the KLIPA ready to run
;ACCEPTS: P1/ CDB
;RETURNS: +1 FAILED. T1/ ERROR CODE
; +2 SUCCEEDED
;
;Assumed to be called at interrupt level or CIOFF
KIKKLP: SAVEAC <Q3>
MOVEI T1,CHNSTP ;GET STOPPED CODE
STOR T1,CFSTA,(P1) ;SET NEW PORT STATE
MOVE Q3,CDBPCB(P1) ;GET PCB
MOVE T2,[600000+3*20,,.PBPBA] ;SET CCW TO GET THE UCODE GOING
ADDI T2,(Q3)
SUB T2,OFFSET ;POINT AT PHYSICAL ADDRESS
MOVEM T2,KIEPT+KLPRH2*4 ;THE UCODE WILL FIND L(PCB) FROM THIS XFER
DATAO KLP,[.DOLRA] ;SET START ADDRESS TO 0
CALL DISKL2 ;() PUT KLIPA IN DISABLED STATE
RETBAD ( ) ;FAILED
MOVSI T2,200000 ;SET UP A JUMP CCW
HRRI T2,.PBCCW(Q3) ;WHERE THE KLIPA WANTS TO SEE IT
SUB T2,OFFSET
MOVEM T2,KIEPT+KLPRH2*4
CALL ENAKLP ;() PUT KLIPA IN ENABLED STATE
RETBAD ( ) ;FAILED
RETSKP
SUBTTL States of the KLIPA -- Starting the KLIPA -- ENAKLP (Enable KLIPA)
;Get KLIPA into enabled state
;RETURNS: +1 FAILED. T1/ ERROR CODE
; +2 SUCCEEDED
ENAKLP: CONO KLP,CI.RQA!CO.BTS ;GO FROM DISABLED TO ENABLED
MOVEI T2,5000 ;GET LOOP COUNTER
ENAKL1: CONI KLP,T1 ;GET CSR
TXNE T1,CI.ECP ;ENABLE COMPLETE?
RETSKP ;YES
SOJG T2,ENAKL1 ;NO, WAIT A BIT LONGER?
RETBAD (KLPX15) ;NO
SUBTTL States of the KLIPA -- Set CI Port Unavailable
;ENABLE "ASSIGN CHANNEL FOR MAINTENANCE" (CALLED FROM DIAG%)
;ACCEPTS: P1/ CDB
;RETURNS: +1
SWAPCD
KLPEAC::SAVEPQ
CIOFF
CALL CFDIAG ;(/) HAVE CFS BREAK ITS CONNECTIONS
CALL STPKLP ;(P1/) STOP THE KLIPA
MOVE Q3,CDBPCB(P1) ;GET PCB
CALL CIGONE ;(Q3,P1/) RESET ALL CI ACTIVITY
MOVEI T1,CHNMAI ;GET MAINTENANCE-MODE CODE
STOR T1,CFSTA,(P1) ;SET NEW PORT STATE
CION
RET
;DISABLE "ASSIGN CHANNEL FOR MAINTENANCE" (CALLED FROM DIAG%)
;ACCEPTS: P1/ CDB
;RETURNS: +1
KLPDAC::SAVEPQ
CIOFF
MOVE Q3,CDBPCB(P1) ;GET PCB
CALL STPKLP ;(P1/) STOP THE KLIPA
CALL RSTQS ;(Q3/) RESET PCB QUEUES
CALL STKDFQ ;(P1/) STOCK DATAGRAM FREE QUEUE
CALL RLDKLP ;(P1/) RELOAD THE DEFAULT UCODE AND START KLIPA
CION
RET
SUBTTL States of the KLIPA -- Miscellaneous
;CALLED AT SYSTEM STARTUP
;RETURNS: +1 DOESN'T NEED ANYTHING
; +2 NEEDS ACTION: T2/ 0 = LOAD
; -1 = DUMP
SWAPCD
CHKKLP::SKIPN T1,CHNTAB+KLPRH2 ;ANYTHING IN THIS SLOT?
RET ;NO. SAY NO HELP NEEDED
MOVE T2,CDBSTS(T1) ;GET THE STATUS
TXNN T2,CS.CIP ;IS THIS A KLIPA?
RET ;NO.
LOAD T1,CFSTA,(T1) ;YES, GET STATE OF PORT
CAIE T1,CHNNRL ;NEED RELOADING?
IFSKP.
SETZ T2, ;YES
RETSKP
ENDIF.
CAIE T1,CHNNDM ;NO, NEED DUMPING?
IFSKP.
SETO T2, ;YES
RETSKP
ENDIF.
RET ;NO
;CALLED WHEN THERE IS NO IPALOD.EXE ON THE SYSTEM
;RETURNS: +1
KLPNLF::SAVEAC <P1,P2>
SKIPN P1,CHNTAB+KLPRH2 ;GET CDB
RET ;NO KLIPA
MOVEI P2,CHNDED ;GET DEAD CODE
STOR P2,CFSTA,(P1) ;SET NEW STATE
RET
;CALLED WHEN THERE IS NO IPADMP.EXE ON THE SYSTEM
;RETURNS: +1
KLPNDF::SAVEAC <P1,P2>
SKIPN P1,CHNTAB+KLPRH2 ;GET CDB
RET ;NO KLIPA
CIOFF
MOVEI P2,CHNSTP ;GET STOPPED CODE
STOR P2,CFSTA,(P1) ;SET NEW STATE
CALL RLDKLP ;(P1) ASK FOR A RELOAD
CION
RET
RESCD
SUBTTL Utility Routines
;PUT START DATA INTO BUFFER
;ACCEPTS: T1/ PPD BYTE (START OR STACK)
; Q2/ ADDRESS OF BUFFER
;RETURNS: +1 ALWAYS
STRTDT: STKVAR <KLPTMP>
DPB T1,PKYPPD ;INSERT PPD BYTE
MOVE T1,APRSER ;GET OUR SERIAL NUMBER
LSH T1,4 ;FUDGE FOR THE LOW ORDER BITS THAT DON'T COUNT
CALL REVFUL ;REVERSE BYTES BEFOR SHIPPING
MOVEM T1,.SRSSY(Q2) ;STORE OUR SERIAL NUMBER AS SENDING NODE
SETZM .SRSSY+1(Q2) ;CLEAR SECOND WORD OF SENDING SYSTEM
MOVEI T1,SCAVER ;SCA PROTOCOL
STOR T1,SRVRS,(Q2) ; VERSION
SETZRO SRMBZ,(Q2) ;ZERO THE MBZ FILD
MOVE T1,.SRRSV(Q2) ;GET THE ENTIRE WORD
CALL REVFUL ;REVERSE THOSE BACKWARD BYTES
MOVEM T1,.SRRSV(Q2) ;RESTORE THE WORD
MOVE T1,[XWD C%MXMP_2,C%MXDP_4] ;MAX MESSAGE, DG SIZES
CALL REVFUL ;REVERSE THEM
MOVEM T1,.SRMMS(Q2) ;SAVE IN PACKET
MOVE T1,[BYTE (8) 124,55,62,60] ;""T-20" IS SOFTWARE TYPE
MOVEM T1,.SRSWT(Q2) ;SAVE IN PACKET
;Note comically - This will need to be modified sometime in the
;future if TOPS-20's major version number exceeds 100 octal.
MOVE T1,[POINT 3,137,5] ;[7422] Pointer to version number
MOVEI T2,.SRSWV(Q2) ;WHERE IN PACKET TO STORE IT
MOVEI T3,4 ;4 BYTES
CALL STORNO ;SAVE SW VERSION
MOVE T1,[POINT 3,137,23] ;POINTER TO VERSION
MOVEI T2,.SRSWI+1(Q2) ;WHERE IN PACKET TO STORE
MOVEI T3,4 ;4 BYTES
CALL STORNO ;SAVE SW INCARNATION
MOVE T1,[BYTE (8) 40,40,40,40] ;1ST 8 BYTES OF INCARNATION ARE BLANK
MOVEM T1,.SRSWI(Q2) ; "
MOVE T1,[BYTE (8) 40,40,113,114] ;[9036] Preface hardware version (KL)
MOVEM T1,.SRHWV+1(Q2) ;[9036] And store it here
MOVE T1,[POINT 3,APRSER,23] ;[9036] Now get serial number pointer
MOVEI T2,.SRHWV+2(Q2) ;[9036] Slam serial number starting here
MOVEI T3,4 ;[9036] This many bytes
CALL STORNO ;[9036] (T1-T3,Q2/) Do it
MOVE T1,[BYTE (8) 113,114,61,60] ;""KL10"
MOVEM T1,.SRHWT(Q2) ;IS HW TYPE
APRID T1 ;[9036] Read microcode version
TLZ T1,777000 ;MASK OUT JUNK (MICROCODE OPTIONS)
MOVEM T1,KLPTMP ;STASH IT
MOVE T1,[POINT 3,KLPTMP,5] ;POINT TO START OF VERSION
MOVEI T2,.SRHWV(Q2) ;WHERE TO STORE IT
MOVEI T3,4 ;4 BYTES
CALL STORNO ;SAVE IN PACKET
MOVE T1,[POINT 7,OURNAM] ;[9034] Point to our system name
MOVEI T2,.SRNNM(Q2) ;[9034] Stash it here
MOVEI T3,6 ;[9034] Only 6 character names than you
CALL STOR7 ;[9034] (T1-T3,Q2/) Slam it in packet
SETZM .SRTOD(Q2) ;TIME OF DAY IN
SETZM .SRTOD+1(Q2) ; VAX NOTATION
RET
ENDSV.
;ROUTINE TO STORE 8-BIT BYTES IN A PACKET
;CALL: T1/POINTER TO DATA
; T2/ ADDRESS OF WHERE TO STORE
; T3/ COUNT OF BYTES TO STORE
;CALL STOR6 IF ORIGINAL DATA IS SIXBIT, STORNO IF OCTAL NUMBER
STOR7: STKVAR <FLAG7> ;[9034] Entry flag (must be same as STORNO)
SETZM FLAG7 ;[9034] Say 7 bit entry
JRST STORN1 ;[9034] And join common code
STORNO: STKVAR <FLAG7> ;[9034] Must be same as STOR7
SETOM FLAG7 ;[9034] Say octal entry
STORN1: MOVSI CX,(POINT 8,0(T2)) ;[9034] Set CX as a byte pointer
HLL T2,Q2 ;TURN ON RIGHT SECTION BITS
STORLP: ILDB T4,T1
SKIPE FLAG7 ;[9034] 7-bit? If so, don't ascify it
ADDI T4,60 ;CONVERT TO ASCII
IDPB T4,CX ;SAVE IN PACKET
SOJG T3,STORLP ;FOR ALL CHARACTERS
RET
ENDSV. ;[9034]
;PATH STATUS
;ACCEPTS: T1/ NODE NUMBER
;RETURNS: +1 PORT NOT RUNNING
; +2 T2/ STATUS
;
;PRESERVES ALL ACS EXCEPT T2
;
; UDB%WA and UDB%WB
;
;Returning a bit on means:
; 1) For our node - the wire is good
; 2) For a remote - the answer to request-ids is not no-response
;Returning a bit off means:
; 1) For our node - the wire is bad
; 2) For a remote - the answer to request-ids is no-response
; UDB%MA
;
;Indicates remote node is in maintenance state (IDREC said so)
PTHSTS::SAVEAC <P1> ;SAVE P1
SKIPN P1,CHNTAB+KLPRH2 ;GET CDB
RET ;NO KLIPA
LOAD T2,CFSTA,(P1) ;GET STATE OF PORT
CAIE T2,CHNRUN ;RUNNING?
RET ;NO
SETZ T2, ;YES, START FRESH
CAME T1,CDBNOD(P1) ;OUR NODE?
IFSKP.
;Status of loopback
SKIPN CIWIRA ;YES, WIRE A GOOD?
IOR T2,[UDB%WA] ;YES
SKIPN CIWIRB ;WIRE B GOOD?
IOR T2,[UDB%WB] ;YES
ELSE.
;Status of no-response to a remote node
TMNE IDMAI,(T1) ;NODE IN MAINTENANCE MODE?
IOR T2,[UDB%MA] ;YES
TMNN IDNRA,(T1) ;NO-RESPONSE ON A?
IOR T2,[UDB%WA] ;NO
TMNN IDNRB,(T1) ;NO-RESPONSE ON B?
IOR T2,[UDB%WB] ;NO
ENDIF.
RETSKP
;ISIT20 - IS THE REMOTE CI SYSTEM A TOPS-20 SYSTEM?
; T2/ CI NODE NUMER
; CALL ISIT20 ;(T2/)
; RETURN +1: REMOTE IS NOT TOPS-20
; +2: REMOTE IS TOPS-20
;
;PRESERVES ALL ACS
;
;[7.1072]
;IS7020 - IS THE REMOTE CI SYSTEM A TOPS-20 VERSION 7.0 SYSTEM?
; T2/ CI NODE NUMER
; CALL IS7020 ;(T2/)
; RETURN +1: REMOTE IS A 6.1 VERSION TOPS-20 SYSTEM
; +2: REMOTE IS A VERSION 7.0 OR GREATER TOPS-20 SYSTEM
;
;PRESERVES ALL ACS
IS7020::SAVEAC <T1,T2,T3> ;[7.1072]
SETZ T3, ;[7.1072] Indicate entry to IS7020
JRST ISITCD ;[7.1072] Continue at common code
ISIT20::SAVEAC <T1,T2,T3> ;[7.1072]
SETO T3, ;[7.1072] Indicate entry at ISIT20
ISITCD: SKIPN T2,SBLIST(T2) ;[7.1072] IS THERE A REMOTE SYSTEM?
RET ;NO
MOVE T1,[BYTE (8) 124,55,62,60] ;YES, GET "T-20"
CAME T1,.SBDST(T2) ;IS REMOTE "T-20"?
RET ;NO
SKIPE T3 ;[7.1072] Called ISIT20?
RETSKP ;[7.1072] Yes, so return success now
LOAD T1,SBDVSW,(T2) ;[7.1072] Get the destination version number
CAMN T1,[BYTE (8) 60,66,60,61] ;[7.1072] Is it "0601"?
RET ;[7.1072] Yes, so this is a 6.1 system
TLZ T1,776000 ;[7.1072] Mask off first 8-bit byte
CAMN T1,[BYTE (8) 0,60,60,66] ;[7.1072] Is it "006"?
RET ;[7.1072] Yes, so this is a 6.1 system
RETSKP ;[7.1072] This is a 7.0 or greater system
;Subroutine to return the local port number.
;
; Usage:
; Call
; No args
;
; Return (+1)
; No KLIPA port
;
; Return (+2)
; T1/ Local port number
;
LOCPRT::SKIPN T1,CHNTAB+KLPRH2 ;DO WE HAVE A CDB?
RETBAD (KLPX7) ;NO, NO KLIPA
SKIPGE T1,CDBNOD(T1) ;YES, DO WE HAVE OUR PORT NUMBER?
RETBAD (KLPX10) ;NO
RETSKP ;YES
;CHECK ON THE KLIPA
; T1/ 0=) either path working
; pos=) path A working
; neg=) path B working
;RETURNS: +1 FAILED
; +2 SUCCESS
CIONLT::SKIPN T2,CHNTAB+KLPRH2 ;POINT AT KLIPA CHANNEL
RET ;NO KLIPA THERE!
LOAD T2,CFSTA,(T2) ;GET STATE OF PORT
CAIE T2,CHNRUN ;RUNNING?
RET ;NO. CAN'T DO LOOPBACK NOW
SKIPE T1 ;EITHER WIRE OK?
IFSKP.
SKIPE CIWIRA ;YES, WIRE A WORKING?
CIONL1: SKIPN CIWIRB ;NO, HOW ABOUT B?
RETSKP ;YES
RET ;NO
ENDIF.
JUMPL T1,CIONL1 ;WANT WIRE B?
SKIPE CIWIRA ;NO, IS A WORKING?
RET ;NO
RETSKP ;YES
;CLEAR THE PCB ERROR WORDS
;ACCEPTS: Q3/ PCB
;RETURNS: +1
RSTEWD: SETZM .PBER0(Q3) ;ERROR WORD 0
SETZM .PBER1(Q3) ;ERROR WORD 1
SETZM .PBER2(Q3) ;ERROR WORD 2
SETZM .PBER3(Q3) ;ERROR WORD 3
SETZM .PBER4(Q3) ;ERROR WORD 4
RET
;URDEAD - STOP, RESET, AND START THE CI
; Q3/ PCB
; P1/ CDB
; CALL URDEAD ;(Q3,P1/)
; RETURN +1
;
URDEAD: CIOFF
CALL STPKLP ;(P1/) STOP THE PORT
CALL CIGONE ;(Q3,P1/) RESET ALL CI ACTIVITY
CION ;LET SCHEDULER
CIOFF ; RUN
CALL RLDKLP ;(P1/) RELOAD THE PORT
CION
RET
;CIGONE - THE CI HAS STOPPED
; Q3/ PCB
; P1/ CDB
; CALL CIGONE ;(Q3,P1/)
; RETURN +1
;
;Assumed to be called at interrupt level or CIOFF and CI not enabled
CIGONE: CALL NONODS ;(/) INFORM SCA OF DEPARTED NODES
CALL RSTRID ;(/) RESET REQUEST-ID STATUS
CALL RSTLKS ;(Q3/) RESET QUEUE INTERLOCKS IN PCB
CALL CLNKLP ;(Q3,P1/) CLEAN THE QUEUES
RET
;NONODS - TELL SCA ABOUT THE DISAPPEARANCE OF EACH NODE WITH AN OPEN VC
; CALL NONODS ;(/)
; RETURN +1
;
;Assumed to be called at interrupt level or CIOFF
NONODS: SAVEAC <Q2,P2,P4,P5>
MOVSI P2,-C%SBLL
NONOD1: SKIPN P5,SBLIST(P2) ;ANOTHER SB?
JRST NONOD2 ;NO
SETZRO SBNTC,(P5) ;YES, NO LONGER NEED TO CLOSE
SETZ Q2,
SETO P4,
CALL CLOSV1 ;(Q2,P4,P5/) CLOSE THE VC AND TELL SCA
NONOD2: AOBJN P2,NONOD1 ;DO ALL SB
RET
;RSTRID - RESET THE REQUEST-ID INFO
; CALL RSTRID ;(/)
; RETURN +1
;
;Assumed to be called at interrupt level or CIOFF
RSTRID: MOVSI T1,-<MAXNDS+1> ;AOBJN WORD FOR ALL NODES
DO. ;[8967]
SETZM RIDSTS(T1) ;[8967] Reset status word
SETZM RIDTIM(T1) ;[8967] Reset request-id timer
AOBJN T1,TOP. ;[8967] Do all nodes
OD. ;[8967]
RET
;RSTLKS - CLEAR ALL QUEUE INTERLOCKS
; Q3/ PCB
; CALL RSTLKS ;(Q3/)
; RETURN +1
;
;Assumed to be called at interrupt level or CIOFF and CI not enabled
RSTLKS: SETOM .PBQ3I(Q3) ;COMMAND QUEUE 3
SETOM .PBQ2I(Q3) ;COMMAND QUEUE 2
SETOM .PBQ1I(Q3) ;COMMAND QUEUE 1
SETOM .PBQ0I(Q3) ;COMMAND QUEUE 0
SETOM .PBRQI(Q3) ;RESPONSE QUEUE
SETOM .PBMFI(Q3) ;MESSAGE FREE QUEUE
SETOM .PBDFI(Q3) ;DATAGRAM FREE QUEUE
RET
;CLNKLP - CLEAN ALL QUEUES
; Q3/ PCB
; P1/ CDB
; CALL CLNKLP ;(Q3,P1/)
; RETURN +1
;
;Assumed to be called at interrupt level or CIOFF and CI not enabled
CLNKLP: XMOVEI T1,.PBRQI(Q3) ;GET RESPONSE QUEUE INTERLOCK WORD
CALL CHKMPT ;IS RESPONSE QUEUE EMPTY?
SKIPA ;YES
CALL KLPRQC ;(Q3,P1) NO, CLEAN THE RESPONSE QUEUE
SETZ T1, ;CLEAN ALL QUEUES
CALL CLENCQ ;(T1,Q3,P1) CLEAN THE COMMAND QUEUES
RET
;CLEAN THE COMMAND QUEUES
;ACCEPTS: T1/ 0 OR INTERLOCK WORD OF QUEUE WHICH IS BAD
; Q3/ PCB
; P1/ CDB
;RETURNS: +1
;Caller should have closed all v.c.'s and notified SCA. Nothing should
;be queued after this call until the port has been restarted.
CLENCQ: STKVAR <OLDQI,BADQI> ;OLDQI = LOOPER'S OLD QUEUE INTERLOCK
;BADQI = BAD QUEUE INTERLOCK
MOVEM T1,BADQI ;SAVE THE BAD QUEUE INTERLOCK
MOVEI T1,.PBQ3I(Q3) ;GET COMMAND QUEUE 3 INTERLOCK
CLENC1: MOVEM T1,OLDQI ;STASH THE INTERLOCK WORD
SETOM .PBIWD(T1) ;CLEAR THE INTERLOCK
CAME T1,BADQI ;THIS THE BAD ONE?
IFSKP.
MOVEI T2,.PBFLI(T1) ;YES, GET THE FLINK
SUB T2,OFFSET ;WE NEED PHYSICAL ADDRESSES
MOVEM T2,.PBFLI(T1) ;MAKE FLINK POINT AT ITSELF
MOVEM T2,.PBBLI(T1) ;MAKE BLINK POINT AT FLINK
ELSE.
CALL CLNCOM ;(T1,Q3,P1) NO, CLEAN THE QUEUE
ENDIF.
MOVE T1,OLDQI ;RETRIEVE THE QUEUE INTERLOCK
ADDI T1,.PBBLI+1 ;MOVE TO NEXT INTERLOCK
CAIGE T1,.PBRQI(Q3) ;IS THIS THE RESPONSE QUEUE?
JRST CLENC1 ;NO, GO CLEAN IT UP
RET ;YES, DONE
ENDSV.
;CLEAN AN INDIVIDUAL COMMAND QUEUE
;ACCEPTS: T1/ ADDRESS OF QUEUE'S INTERLOCK WORD
; Q3/ PCB
; P1/ CBD
;RETURNS: +1
;Caller should have closed all v.c.'s and notified SCA. Nothing should
;be queued after this call until the port has been restarted.
CLNCOM: STKVAR <IWORD>
MOVEM T1,IWORD ;STASH INTERLOCK WORD
CLNCO1: CALL REMQUE ;(T1/Q2) GET A PACKET FROM THE QUEUE
RET ;QUEUE EMPTY, DONE
NOP
TMNN PKSCA,(Q2) ;SCA WANT THIS PACKET?
IFSKP.
;The packet is being returned to SCA
MOVE T1,.PKSTS(Q2) ;YES, GET PACKET STATUS
LDB T2,PKYNOD ;GET NODE NUMBER
MOVE P5,SBLIST(T2) ;GET SB
SETO P3, ;SAY PACKET WAS LOCALLY-GENERATED
CIOFF ;SCA EXPECTS TO BE CALLED AT INTERRUPT LEVEL
CALL GIVSC1 ;(T1,Q2,P3,P5) GIVE IT TO SCA
CION
ELSE.
;The packet is not being returned to SCA
SETZRO PKSRB,(Q2) ;CLEAR ALL SOFTWARE RESPONSE BITS
LDB T3,PKYOP ;GET OP CODE FROM PACKET
MOVSI T2,-<KLPOPL> ;MAKE AOBJN WORD FOR OPCODE SEARCH
CLNCO2: CAMN T3,KLPOPS(T2) ;THIS THE ONE?
IFSKP.
AOBJN T2,CLNCO2 ;NO, TRY NEXT OPCODE
BUG.(CHK,KLPBOP,PHYKLP,SOFT,<PHYKLP - Bad op code on command queue>,<<T3,BOC>>,<
Cause: A packet with an illegal op code was found while purging the command
queue.
Action: If this happens frequently, use the SCAMPI and PHYKLP ring buffers to
try to discover how such a packet is being created. It is possible,
though unlikely, that a CI20 microcode or hardware problem can caus
this to happen.
Data: BOC - the bad code
>)
ELSE.
CALL @RETCLO(T2) ;(Q2,Q3) RETURN THE BUFFER TO ITS QUEUE
ENDIF.
ENDIF.
MOVE T1,IWORD ;RETRIEVE INTERLOCK WORD
JRST CLNCO1 ;GO GET NEXT PACKET
ENDSV.
;RSTQS - RESET THE PCB QUEUES
; Q3/ PCB
; CALL RSTQS ;(Q3/)
;RETURN +1
RSTQS: MOVEI T1,.PBQ3I(Q3) ;GET INTERLOCK WORD OF FIRST QUEUE
RSTQS1: SETOM .PBIWD(T1) ;SET INTERLOCK WORD
MOVEI T2,.PBFLI(T1) ;GET FLINK
SUB T2,OFFSET ;WE NEED PHYSICAL ADDRESSES
MOVEM T2,.PBFLI(T1) ;MAKE FLINK POINT AT ITSELF
MOVEM T2,.PBBLI(T1) ;MAKE BLINK POINT AT FLINK
ADDI T1,.PBBLI+1 ;MOVE TO NEXT INTERLOCK
CAIGE T1,.PBQND(Q3) ;ANYMORE QUEUES?
JRST RSTQS1 ;YES, GO DO IT
RET ;NO, DONE
;STKDFQ - STOCK THE DATAGRAM FREE QUEUE
; P1/ CBD
; CALL STKDFQ ;(P1/)
; RETURN +1
STKDFQ: SAVEPQ
STKVAR <NXTBUF> ;NXTBUF - NEXT BUFFER ADDRESS
MOVEI T1,2*MAXNDS ;GET 2 DATAGRAM BUFFERS FOR EACH NODE
CALL SC.ALD ;(T1/T1,T2,T3) GET THE BUFFERS
BUG.(HLT,KLPNOD,PHYKLP,SOFT,<PHYKLP - Can't stock datagram free queue>,,<
Cause: The CALL SC.ALD failed. SCA can't handle the request.
>)
MOVE Q2,T1 ;POSITION THE FIRST DATAGRAM ADDRESS
MOVE Q3,CDBPCB(P1) ;GET PCB ADDRESS
XMOVEI T1,.PBDFI(Q3) ;QUEUE ON WHICH TO INSERT PACKET
STKDF1: MOVE T2,(Q2) ;GET NEXT DATAGRAM ADDRESS
MOVEM T2,NXTBUF ;SAVE IT
CALL PUTQUE ;(T1,Q2) INSERT THIS BUFFER ON QUEUE
JFCL ;QUEUE WAS EMPTY, THAT'S OK
MOVE Q2,NXTBUF ;GET NEXT DATAGRAM
JUMPN Q2,STKDF1 ;IF NONE, WE'RE DONE
RET
ENDSV.
TNXEND
END