+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1982, 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department.
+ *
+ * %sccs.include.redist.c%
+ *
+ * from: Utah $Hdr: rd.c 1.30 89/09/17$
+ *
+ * @(#)rd.c 7.1 (Berkeley) %G%
+ */
+
+/*
+ * CS80/SS80 disk driver
+ */
+#include "rd.h"
+#if NRD > 0
+
+#include "param.h"
+#include "systm.h"
+#include "errno.h"
+#include "dkstat.h"
+#include "disklabel.h"
+#include "buf.h"
+#include "uio.h"
+
+#include "device.h"
+#include "rdreg.h"
+
+int rdinit(), rdstart(), rdgo(), rdintr();
+struct driver rddriver = {
+ rdinit, "rd", rdstart, rdgo, rdintr,
+};
+
+struct rd_softc {
+ struct hp_device *sc_hd;
+ struct rd_iocmd sc_ioc;
+ struct rd_rscmd sc_rsc;
+ struct rd_stat sc_stat;
+ struct rd_ssmcmd sc_ssmc;
+ struct rd_srcmd sc_src;
+ struct rd_clearcmd sc_clear;
+ int sc_resid;
+ char *sc_addr;
+ struct rdinfo *sc_info;
+ int sc_flags;
+ short sc_type;
+ short sc_punit;
+ struct devqueue sc_dq;
+} rd_softc[NRD];
+
+/* sc_flags values */
+#define RDF_ALIVE 0x1
+#define RDF_SEEK 0x2
+#define RDF_SWAIT 0x4
+
+struct size {
+ daddr_t nblocks;
+ int cyloff;
+};
+
+#ifdef DEBUG
+int rddebug = 0x80;
+#define RDB_FOLLOW 0x01
+#define RDB_STATUS 0x02
+#define RDB_IDENT 0x04
+#define RDB_IO 0x08
+#define RDB_ASYNC 0x10
+#define RDB_ERROR 0x80
+#define RDB_DUMP 0x80000000
+
+struct rdstats {
+ long rdretries;
+ long rdresets;
+ long rdtimeouts;
+ long rdpolltries;
+ long rdpollwaits;
+} rdstats[NRD];
+
+/* error message tables */
+char *err_reject[] = {
+ 0, 0,
+ "channel parity error", /* 0x2000 */
+ 0, 0,
+ "illegal opcode", /* 0x0400 */
+ "module addressing", /* 0x0200 */
+ "address bounds", /* 0x0100 */
+ "parameter bounds", /* 0x0080 */
+ "illegal parameter", /* 0x0040 */
+ "message sequence", /* 0x0020 */
+ 0,
+ "message length", /* 0x0008 */
+ 0, 0, 0
+};
+
+char *err_fault[] = {
+ 0,
+ "cross unit", /* 0x4000 */
+ 0,
+ "controller fault", /* 0x1000 */
+ 0, 0,
+ "unit fault", /* 0x0200 */
+ 0,
+ "diagnostic result", /* 0x0080 */
+ 0,
+ "operator release request", /* 0x0020 */
+ "diagnostic release request", /* 0x0010 */
+ "internal maintenance release request", /* 0x0008 */
+ 0,
+ "power fail", /* 0x0002 */
+ "retransmit" /* 0x0001 */
+};
+
+char *err_access[] = {
+ "illegal parallel operation", /* 0x8000 */
+ "uninitialized media", /* 0x4000 */
+ "no spares available", /* 0x2000 */
+ "not ready", /* 0x1000 */
+ "write protect", /* 0x0800 */
+ "no data found", /* 0x0400 */
+ 0, 0,
+ "unrecoverable data overflow", /* 0x0080 */
+ "unrecoverable data", /* 0x0040 */
+ 0,
+ "end of file", /* 0x0010 */
+ "end of volume", /* 0x0008 */
+ 0, 0, 0
+};
+
+char *err_info[] = {
+ "operator release request", /* 0x8000 */
+ "diagnostic release request", /* 0x4000 */
+ "internal maintenance release request", /* 0x2000 */
+ "media wear", /* 0x1000 */
+ "latency induced", /* 0x0800 */
+ 0, 0,
+ "auto sparing invoked", /* 0x0100 */
+ 0,
+ "recoverable data overflow", /* 0x0040 */
+ "marginal data", /* 0x0020 */
+ "recoverable data", /* 0x0010 */
+ 0,
+ "maintenance track overflow", /* 0x0004 */
+ 0, 0
+};
+#endif
+
+/*
+ * CS/80 partitions. We reserve the first cylinder for a LIF
+ * style boot directory (the 8k allowed in the BSD filesystem
+ * is just way too small). This boot area is outside of all but
+ * the C partition. This implies that you cannot use the C
+ * partition on a bootable disk since the filesystem would overlay
+ * the boot area. You must use the A partition.
+ *
+ * These maps support four basic layouts:
+ *
+ * A/B/G: This is the "traditional" setup for a bootable disk.
+ * A is the root partition, B the swap, and G a user partition.
+ * A/D/H: This is a setup for bootable systems requiring more swap
+ * (e.g. those who use HPCL). It has A as the root, D as a
+ * larger swap, and H as a smaller user partition.
+ * A/D/E/F: Similar to A/D/H with E and F breaking H into two partitions.
+ * E could be used for /usr and F for users.
+ * C: This gives a single, non-bootable, large user filesystem.
+ * Good for second drives on a machine (e.g. /usr/src).
+ */
+struct size rd7945A_sizes[8] = {
+ RDSZ(15904), 1, /* A=cyl 1 thru 142 */
+ RDSZ(20160), 143, /* B=cyl 143 thru 322 */
+ RDSZ(108416), 0, /* C=cyl 0 thru 967 */
+ RDSZ(40320), 143, /* D=cyl 143 thru 502 */
+ RDSZ(0), 0, /* E=<undefined> */
+ RDSZ(0), 0, /* F=<undefined> */
+ RDSZ(72240), 323, /* G=cyl 323 thru 967 */
+ RDSZ(52080), 503, /* H=cyl 503 thru 967 */
+}, rd9134D_sizes[8] = {
+ RDSZ(15936), 1, /* A=cyl 1 thru 166 */
+ RDSZ(13056), 167, /* B=cyl 167 thru 302 */
+ RDSZ(29088), 0, /* C=cyl 0 thru 302 */
+ RDSZ(0), 0, /* D=<undefined> */
+ RDSZ(0), 0, /* E=<undefined> */
+ RDSZ(0), 0, /* F=<undefined> */
+ RDSZ(0), 0, /* G=<undefined> */
+ RDSZ(0), 0, /* H=<undefined> */
+}, rd9122S_sizes[8] = {
+ RDSZ(0), 0, /* A=<undefined> */
+ RDSZ(0), 0, /* B=<undefined> */
+ RDSZ(1232), 0, /* C=cyl 0 thru 76 */
+ RDSZ(0), 0, /* D=<undefined> */
+ RDSZ(0), 0, /* E=<undefined> */
+ RDSZ(0), 0, /* F=<undefined> */
+ RDSZ(0), 0, /* G=<undefined> */
+ RDSZ(0), 0, /* H=<undefined> */
+}, rd7912P_sizes[8] = {
+ RDSZ(15904), 0, /* A=cyl 1 thru 71 */
+ RDSZ(22400), 72, /* B=cyl 72 thru 171 */
+ RDSZ(128128), 0, /* C=cyl 0 thru 571 */
+ RDSZ(42560), 72, /* D=cyl 72 thru 261 */
+ RDSZ(0), 292, /* E=<undefined> */
+ RDSZ(0), 542, /* F=<undefined> */
+ RDSZ(89600), 172, /* G=cyl 221 thru 571 */
+ RDSZ(69440), 262, /* H=cyl 262 thru 571 */
+}, rd7914P_sizes[8] = {
+ RDSZ(15904), 1, /* A=cyl 1 thru 71 */
+ RDSZ(40320), 72, /* B=cyl 72 thru 251 */
+ RDSZ(258048), 0, /* C=cyl 0 thru 1151 */
+ RDSZ(64960), 72, /* D=cyl 72 thru 361 */
+ RDSZ(98560), 362, /* E=cyl 362 thru 801 */
+ RDSZ(78400), 802, /* F=cyl 802 thru 1151 */
+ RDSZ(201600), 252, /* G=cyl 221 thru 1151 */
+ RDSZ(176960), 362, /* H=cyl 362 thru 1151 */
+}, rd7933H_sizes[8] = {
+ RDSZ(16146), 1, /* A=cyl 1 thru 27 */
+ RDSZ(66976), 28, /* B=cyl 28 thru 139 */
+ RDSZ(789958), 0, /* C=cyl 0 thru 1320 */
+ RDSZ(16146), 140, /* D=cyl 140 thru 166 */
+ RDSZ(165646), 167, /* E=cyl 167 thru 443 */
+ RDSZ(165646), 444, /* F=cyl 444 thru 720 */
+ RDSZ(706238), 140, /* G=cyl 140 thru 1320 */
+ RDSZ(358800), 721, /* H=cyl 721 thru 1320 */
+}, rd9134L_sizes[8] = {
+ RDSZ(15920), 1, /* A=cyl 1 thru 199 */
+ RDSZ(20000), 200, /* B=cyl 200 thru 449 */
+ RDSZ(77840), 0, /* C=cyl 0 thru 972 */
+ RDSZ(32000), 200, /* D=cyl 200 thru 599 */
+ RDSZ(0), 0, /* E=<undefined> */
+ RDSZ(0), 0, /* F=<undefined> */
+ RDSZ(41840), 450, /* G=cyl 450 thru 972 */
+ RDSZ(29840), 600, /* H=cyl 600 thru 972 */
+}, rd7957A_sizes[8] = {
+ RDSZ(16016), 1, /* A=cyl 1 thru 104 */
+ RDSZ(24640), 105, /* B=cyl 105 thru 264 */
+ RDSZ(159544), 0, /* C=cyl 0 thru 1035 */
+ RDSZ(42350), 105, /* D=cyl 105 thru 379 */
+ RDSZ(54824), 380, /* E=cyl 380 thru 735 */
+ RDSZ(46200), 736, /* F=cyl 736 thru 1035 */
+ RDSZ(118734), 265, /* G=cyl 265 thru 1035 */
+ RDSZ(101024), 380, /* H=cyl 380 thru 1035 */
+}, rd7958A_sizes[8] = {
+ RDSZ(16128), 1, /* A=cyl 1 thru 64 */
+ RDSZ(32256), 65, /* B=cyl 65 thru 192 */
+ RDSZ(255276), 0, /* C=cyl 0 thru 1012 */
+ RDSZ(48384), 65, /* D=cyl 65 thru 256 */
+ RDSZ(100800), 257, /* E=cyl 257 thru 656 */
+ RDSZ(89712), 657, /* F=cyl 657 thru 1012 */
+ RDSZ(206640), 193, /* G=cyl 193 thru 1012 */
+ RDSZ(190512), 257, /* H=cyl 257 thru 1012 */
+}, rd7957B_sizes[8] = {
+ RDSZ(16002), 1, /* A=cyl 1 thru 127 */
+ RDSZ(32760), 128, /* B=cyl 128 thru 387 */
+ RDSZ(159894), 0, /* C=cyl 0 thru 1268 */
+ RDSZ(49140), 128, /* D=cyl 128 thru 517 */
+ RDSZ(50400), 518, /* E=cyl 518 thru 917 */
+ RDSZ(44226), 918, /* F=cyl 918 thru 1268 */
+ RDSZ(111006), 388, /* G=cyl 388 thru 1268 */
+ RDSZ(94626), 518, /* H=cyl 518 thru 1268 */
+}, rd7958B_sizes[8] = {
+ RDSZ(16254), 1, /* A=cyl 1 thru 43 */
+ RDSZ(32886), 44, /* B=cyl 44 thru 130 */
+ RDSZ(297108), 0, /* C=cyl 0 thru 785 */
+ RDSZ(49140), 44, /* D=cyl 44 thru 173 */
+ RDSZ(121716), 174, /* E=cyl 174 thru 495 */
+ RDSZ(109620), 496, /* F=cyl 496 thru 785 */
+ RDSZ(247590), 131, /* G=cyl 131 thru 785 */
+ RDSZ(231336), 174, /* H=cyl 174 thru 785 */
+}, rd7959B_sizes[8] = {
+ RDSZ(16254), 1, /* A=cyl 1 thru 43 */
+ RDSZ(49140), 44, /* B=cyl 44 thru 173 */
+ RDSZ(594216), 0, /* C=cyl 0 thru 1571 */
+ RDSZ(65772), 44, /* D=cyl 44 thru 217 */
+ RDSZ(303912), 218, /* E=cyl 218 thru 1021 */
+ RDSZ(207900), 1022, /* F=cyl 1022 thru 1571 */
+ RDSZ(528444), 174, /* G=cyl 174 thru 1571 */
+ RDSZ(511812), 218, /* H=cyl 218 thru 1571 */
+
+#if DEV_BSIZE == 512
+/*
+ * These values would not work for 1k,
+ * since the number of cylinders would be different.
+ */
+}, rd7936H_sizes[8] = {
+ RDSZ(16359), 1, /* A=cyl 1 thru 19 */
+ RDSZ(67158), 20, /* B=cyl 20 thru 97 */
+ RDSZ(600978), 0, /* C=cyl 0 thru 697 */
+ RDSZ(16359), 98, /* D=cyl 98 thru 116 */
+ RDSZ(120540), 117, /* E=cyl 117 thru 256 */
+ RDSZ(120540), 256, /* F=cyl 256 thru 396 */
+ RDSZ(516600), 98, /* G=cyl 98 thru 697 */
+ RDSZ(259161), 397, /* H=cyl 397 thru 697 */
+}, rd7937H_sizes[8] = {
+#ifdef UTAH
+ RDSZ(15990), 1, /* A=cyl 1 thru 10 */
+ RDSZ(67158), 11, /* B=cyl 11 thru 52 */
+ RDSZ(1116102), 0, /* C=cyl 0 thru 697 */
+ RDSZ(124722), 53, /* D=cyl 53 thru 130 */
+ RDSZ(163098), 131, /* E=cyl 131 thru 232 */
+ RDSZ(287820), 233, /* F=cyl 233 thru 412 */
+ RDSZ(1031355), 53, /* G=cyl 53 thru 697 */
+ RDSZ(455715), 413, /* H=cyl 413 thru 697 */
+#else
+ RDSZ(15990), 1, /* A=cyl 1 thru 10 */
+ RDSZ(67158), 11, /* B=cyl 11 thru 52 */
+ RDSZ(1116102), 0, /* C=cyl 0 thru 697 */
+ RDSZ(15990), 53, /* D=cyl 53 thru 62 */
+ RDSZ(246246), 63, /* E=cyl 63 thru 216 */
+ RDSZ(246246), 217, /* F=cyl 217 thru 370 */
+ RDSZ(1031355), 53, /* G=cyl 53 thru 697 */
+ RDSZ(522873), 371, /* H=cyl 371 thru 697 */
+#endif
+#endif
+};
+
+struct rdinfo {
+ int nbpt; /* DEV_BSIZE blocks per track */
+ int ntpc; /* tracks per cylinder */
+ int nbpc; /* blocks per cylinder */
+ struct size *sizes; /* default partition info (if no disklabel) */
+ short hwid; /* 2 byte HW id */
+ short maxunum; /* maximum allowed unit number */
+ char *desc; /* drive type description */
+};
+
+struct rdinfo rdinfo[] = {
+ NRD7945ABPT, NRD7945ATRK, NRD7945ABPT * NRD7945ATRK,
+ rd7945A_sizes, RD7946AID, 0, "7945A",
+ NRD9134DBPT, NRD9134DTRK, NRD9134DBPT * NRD9134DTRK,
+ rd9134D_sizes, RD9134DID, 1, "9134D",
+ NRD9122SBPT, NRD9122STRK, NRD9122SBPT * NRD9122STRK,
+ rd9122S_sizes, RD9134LID, 1, "9122S",
+ NRD7912PBPT, NRD7912PTRK, NRD7912PBPT * NRD7912PTRK,
+ rd7912P_sizes, RD7912PID, 0, "7912P",
+ NRD7914PBPT, NRD7914PTRK, NRD7914PBPT * NRD7914PTRK,
+ rd7914P_sizes, RD7914PID, 0, "7914P",
+ NRD7958ABPT, NRD7958ATRK, NRD7958ABPT * NRD7958ATRK,
+ rd7958A_sizes, RD7958AID, 0, "7958A",
+ NRD7957ABPT, NRD7957ATRK, NRD7957ABPT * NRD7957ATRK,
+ rd7957A_sizes, RD7957AID, 0, "7957A",
+ NRD7933HBPT, NRD7933HTRK, NRD7933HBPT * NRD7933HTRK,
+ rd7933H_sizes, RD7933HID, 0, "7933H",
+ NRD9134LBPT, NRD9134LTRK, NRD9134LBPT * NRD9134LTRK,
+ rd9134L_sizes, RD9134LID, 1, "9134L",
+ NRD7936HBPT, NRD7936HTRK, NRD7936HBPT * NRD7936HTRK,
+ rd7936H_sizes, RD7936HID, 0, "7936H",
+ NRD7937HBPT, NRD7937HTRK, NRD7937HBPT * NRD7937HTRK,
+ rd7937H_sizes, RD7937HID, 0, "7937H",
+ NRD7914PBPT, NRD7914PTRK, NRD7914PBPT * NRD7914PTRK,
+ rd7914P_sizes, RD7914CTID, 0, "7914CT",
+ NRD7945ABPT, NRD7945ATRK, NRD7945ABPT * NRD7945ATRK,
+ rd7945A_sizes, RD7946AID, 0, "7946A",
+ NRD9122SBPT, NRD9122STRK, NRD9122SBPT * NRD9122STRK,
+ rd9122S_sizes, RD9134LID, 1, "9122D",
+ NRD7957BBPT, NRD7957BTRK, NRD7957BBPT * NRD7957BTRK,
+ rd7957B_sizes, RD7957BID, 0, "7957B",
+ NRD7958BBPT, NRD7958BTRK, NRD7958BBPT * NRD7958BTRK,
+ rd7958B_sizes, RD7958BID, 0, "7958B",
+ NRD7959BBPT, NRD7959BTRK, NRD7959BBPT * NRD7959BTRK,
+ rd7959B_sizes, RD7959BID, 0, "7959B",
+};
+int nrdinfo = sizeof(rdinfo) / sizeof(rdinfo[0]);
+
+struct buf rdtab[NRD];
+struct buf rdbuf[NRD];
+
+#define rdunit(x) ((minor(x) >> 3) & 0xf)
+#define rdpart(x) (minor(x) & 0x7)
+#define rdpunit(x) ((x) & 7)
+#define b_cylin b_resid
+#define RDRETRY 5
+#define RDWAITC 1 /* min time for timeout in seconds */
+
+rdinit(hd)
+ register struct hp_device *hd;
+{
+ register struct rd_softc *rs = &rd_softc[hd->hp_unit];
+
+ rs->sc_hd = hd;
+ rs->sc_punit = rdpunit(hd->hp_flags);
+ rs->sc_type = rdident(rs, hd);
+ if (rs->sc_type < 0)
+ return(0);
+ rs->sc_dq.dq_ctlr = hd->hp_ctlr;
+ rs->sc_dq.dq_unit = hd->hp_unit;
+ rs->sc_dq.dq_slave = hd->hp_slave;
+ rs->sc_dq.dq_driver = &rddriver;
+ rs->sc_info = &rdinfo[rs->sc_type];
+ rs->sc_flags = RDF_ALIVE;
+ return(1);
+}
+
+rdident(rs, hd)
+ struct rd_softc *rs;
+ struct hp_device *hd;
+{
+ struct rd_describe desc;
+ u_char stat, cmd[3];
+ int unit, lunit;
+ char name[7];
+ register int ctlr, slave, id, i;
+
+ ctlr = hd->hp_ctlr;
+ slave = hd->hp_slave;
+ unit = rs->sc_punit;
+ lunit = hd->hp_unit;
+
+ /*
+ * Grab device id and make sure:
+ * 1. It is a CS80 device.
+ * 2. It is one of the types we support.
+ * 3. If it is a 7946, we are accessing the disk unit (0)
+ */
+ id = hpibid(ctlr, slave);
+ if ((id & 0x200) == 0)
+ return(-1);
+ for (i = 0; i < nrdinfo; i++)
+ if (id == rdinfo[i].hwid)
+ break;
+ if (i == nrdinfo || unit > rdinfo[i].maxunum)
+ return(-1);
+ id = i;
+
+ /*
+ * Reset drive and collect device description.
+ * Don't really use the description info right now but
+ * might come in handy in the future (for disk labels).
+ */
+ rdreset(rs, hd);
+ cmd[0] = C_SUNIT(unit);
+ cmd[1] = C_SVOL(0);
+ cmd[2] = C_DESC;
+ hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd));
+ hpibrecv(ctlr, slave, C_EXEC, &desc, 37);
+ hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat));
+ bzero(name, sizeof(name));
+ if (!stat) {
+ register int n = desc.d_name;
+ for (i = 5; i >= 0; i--) {
+ name[i] = (n & 0xf) + '0';
+ n >>= 4;
+ }
+ }
+#ifdef DEBUG
+ if (rddebug & RDB_IDENT) {
+ printf("rd%d: name: %x ('%s')\n",
+ lunit, desc.d_name, name);
+ printf(" iuw %x, maxxfr %d, ctype %d\n",
+ desc.d_iuw, desc.d_cmaxxfr, desc.d_ctype);
+ printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n",
+ desc.d_utype, desc.d_sectsize,
+ desc.d_blkbuf, desc.d_burstsize, desc.d_blocktime);
+ printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n",
+ desc.d_uavexfr, desc.d_retry, desc.d_access,
+ desc.d_maxint, desc.d_fvbyte, desc.d_rvbyte);
+ printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n",
+ desc.d_maxcyl, desc.d_maxhead, desc.d_maxsect,
+ desc.d_maxvsectl, desc.d_interleave);
+ }
+#endif
+ /*
+ * Take care of a couple of anomolies:
+ * 1. 7945A and 7946A both return same HW id
+ * 2. 9122S and 9134D both return same HW id
+ * 3. 9122D and 9134L both return same HW id
+ */
+ switch (rdinfo[id].hwid) {
+ case RD7946AID:
+ if (bcmp(name, "079450", 6) == 0)
+ id = RD7945A;
+ else
+ id = RD7946A;
+ break;
+
+ case RD9134LID:
+ if (bcmp(name, "091340", 6) == 0)
+ id = RD9134L;
+ else
+ id = RD9122D;
+ break;
+
+ case RD9134DID:
+ if (bcmp(name, "091220", 6) == 0)
+ id = RD9122S;
+ else
+ id = RD9134D;
+ break;
+ }
+ printf("rd%d: %s\n", lunit, rdinfo[id].desc);
+ return(id);
+}
+
+rdreset(rs, hd)
+ register struct rd_softc *rs;
+ register struct hp_device *hd;
+{
+ u_char stat;
+
+ rs->sc_clear.c_unit = C_SUNIT(rs->sc_punit);
+ rs->sc_clear.c_cmd = C_CLEAR;
+ hpibsend(hd->hp_ctlr, hd->hp_slave, C_TCMD, &rs->sc_clear,
+ sizeof(rs->sc_clear));
+ hpibswait(hd->hp_ctlr, hd->hp_slave);
+ hpibrecv(hd->hp_ctlr, hd->hp_slave, C_QSTAT, &stat, sizeof(stat));
+ rs->sc_src.c_unit = C_SUNIT(RDCTLR);
+ rs->sc_src.c_nop = C_NOP;
+ rs->sc_src.c_cmd = C_SREL;
+ rs->sc_src.c_param = C_REL;
+ hpibsend(hd->hp_ctlr, hd->hp_slave, C_CMD, &rs->sc_src,
+ sizeof(rs->sc_src));
+ hpibswait(hd->hp_ctlr, hd->hp_slave);
+ hpibrecv(hd->hp_ctlr, hd->hp_slave, C_QSTAT, &stat, sizeof(stat));
+ rs->sc_ssmc.c_unit = C_SUNIT(rs->sc_punit);
+ rs->sc_ssmc.c_cmd = C_SSM;
+ rs->sc_ssmc.c_refm = REF_MASK;
+ rs->sc_ssmc.c_fefm = FEF_MASK;
+ rs->sc_ssmc.c_aefm = AEF_MASK;
+ rs->sc_ssmc.c_iefm = IEF_MASK;
+ hpibsend(hd->hp_ctlr, hd->hp_slave, C_CMD, &rs->sc_ssmc,
+ sizeof(rs->sc_ssmc));
+ hpibswait(hd->hp_ctlr, hd->hp_slave);
+ hpibrecv(hd->hp_ctlr, hd->hp_slave, C_QSTAT, &stat, sizeof(stat));
+#ifdef DEBUG
+ rdstats[hd->hp_unit].rdresets++;
+#endif
+}
+
+/*ARGSUSED*/
+rdopen(dev, flags)
+ dev_t dev;
+{
+ register int unit = rdunit(dev);
+ register struct rd_softc *rs = &rd_softc[unit];
+
+ if (unit >= NRD || (rs->sc_flags & RDF_ALIVE) == 0)
+ return(ENXIO);
+ if (rs->sc_hd->hp_dk >= 0)
+ dk_wpms[rs->sc_hd->hp_dk] = 60 * rs->sc_info->nbpt * DEV_BSIZE / 2;
+ return(0);
+}
+
+rdstrategy(bp)
+ register struct buf *bp;
+{
+ register int part = rdpart(bp->b_dev);
+ register int unit = rdunit(bp->b_dev);
+ register int bn, sz;
+ register struct rd_softc *rs = &rd_softc[unit];
+ register struct buf *dp = &rdtab[unit];
+ int s;
+
+#ifdef DEBUG
+ if (rddebug & RDB_FOLLOW)
+ printf("rdstrategy(%x): dev %x, bn %x, bcount %x, %c\n",
+ bp, bp->b_dev, bp->b_blkno, bp->b_bcount,
+ (bp->b_flags & B_READ) ? 'R' : 'W');
+#endif
+ bn = bp->b_blkno;
+ sz = (bp->b_bcount + (DEV_BSIZE - 1)) >> DEV_BSHIFT;
+ if (bn < 0 || bn + sz > rs->sc_info->sizes[part].nblocks) {
+ if (bn == rs->sc_info->sizes[part].nblocks) {
+ bp->b_resid = bp->b_bcount;
+ goto done;
+ }
+ bp->b_error = EINVAL;
+ goto bad;
+ }
+ bp->b_cylin = bn / rs->sc_info->nbpc + rs->sc_info->sizes[part].cyloff;
+ s = splbio();
+ disksort(dp, bp);
+ if (dp->b_active == 0) {
+ dp->b_active = 1;
+ rdustart(unit);
+ }
+ splx(s);
+ return;
+bad:
+ bp->b_flags |= B_ERROR;
+done:
+ biodone(bp);
+}
+
+/*
+ * Called from timeout() when handling maintenance releases
+ */
+rdrestart(unit)
+ int unit;
+{
+ int s = splbio();
+ rdustart(unit);
+ splx(s);
+}
+
+rdustart(unit)
+ register int unit;
+{
+ register struct buf *bp;
+ register struct rd_softc *rs = &rd_softc[unit];
+
+ bp = rdtab[unit].b_actf;
+ rs->sc_addr = bp->b_un.b_addr;
+ rs->sc_resid = bp->b_bcount;
+ if (hpibreq(&rs->sc_dq))
+ rdstart(unit);
+}
+
+rdstart(unit)
+ register int unit;
+{
+ register struct rd_softc *rs = &rd_softc[unit];
+ register struct buf *bp = rdtab[unit].b_actf;
+ register struct hp_device *hp = rs->sc_hd;
+ register int part;
+
+again:
+#ifdef DEBUG
+ if (rddebug & RDB_FOLLOW)
+ printf("rdstart(%d): bp %x, %c\n", unit, bp,
+ (bp->b_flags & B_READ) ? 'R' : 'W');
+#endif
+ part = rdpart(bp->b_dev);
+ rs->sc_flags |= RDF_SEEK;
+ rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit);
+ rs->sc_ioc.c_volume = C_SVOL(0);
+ rs->sc_ioc.c_saddr = C_SADDR;
+ rs->sc_ioc.c_hiaddr = 0;
+ rs->sc_ioc.c_addr = RDBTOS(bp->b_blkno + rs->sc_info->nbpc *
+ rs->sc_info->sizes[part].cyloff);
+ rs->sc_ioc.c_nop2 = C_NOP;
+ rs->sc_ioc.c_slen = C_SLEN;
+ rs->sc_ioc.c_len = rs->sc_resid;
+ rs->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE;
+#ifdef DEBUG
+ if (rddebug & RDB_IO)
+ printf("rdstart: hpibsend(%x, %x, %x, %x, %x)\n",
+ hp->hp_ctlr, hp->hp_slave, C_CMD,
+ &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2);
+#endif
+ if (hpibsend(hp->hp_ctlr, hp->hp_slave, C_CMD, &rs->sc_ioc.c_unit,
+ sizeof(rs->sc_ioc)-2) == sizeof(rs->sc_ioc)-2) {
+ if (hp->hp_dk >= 0) {
+ dk_busy |= 1 << hp->hp_dk;
+ dk_seek[hp->hp_dk]++;
+ }
+#ifdef DEBUG
+ if (rddebug & RDB_IO)
+ printf("rdstart: hpibawait(%x)\n", hp->hp_ctlr);
+#endif
+ hpibawait(hp->hp_ctlr);
+ return;
+ }
+ /*
+ * Experience has shown that the hpibwait in this hpibsend will
+ * occasionally timeout. It appears to occur mostly on old 7914
+ * drives with full maintenance tracks. We should probably
+ * integrate this with the backoff code in rderror.
+ */
+#ifdef DEBUG
+ if (rddebug & RDB_ERROR)
+ printf("rd%d: rdstart: cmd %x adr %d blk %d len %d ecnt %d\n",
+ unit, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr,
+ bp->b_blkno, rs->sc_resid, rdtab[unit].b_errcnt);
+ rdstats[unit].rdretries++;
+#endif
+ rs->sc_flags &= ~RDF_SEEK;
+ rdreset(rs, hp);
+ if (rdtab[unit].b_errcnt++ < RDRETRY)
+ goto again;
+ printf("rd%d: rdstart err: cmd 0x%x sect %d blk %d len %d\n",
+ unit, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr,
+ bp->b_blkno, rs->sc_resid);
+ rdtab[unit].b_errcnt = 0;
+ rdtab[unit].b_actf = bp->b_actf;
+ bp->b_flags |= B_ERROR;
+ bp->b_error = EIO;
+ bp->b_resid = 0;
+ biodone(bp);
+ hpibfree(&rs->sc_dq);
+ bp = rdtab[unit].b_actf;
+ if (bp == NULL) {
+ rdtab[unit].b_active = 0;
+ return;
+ }
+ rs->sc_addr = bp->b_un.b_addr;
+ rs->sc_resid = bp->b_bcount;
+ if (hpibreq(&rs->sc_dq))
+ goto again;
+}
+
+rdgo(unit)
+ register int unit;
+{
+ register struct rd_softc *rs = &rd_softc[unit];
+ register struct hp_device *hp = rs->sc_hd;
+ struct buf *bp = rdtab[unit].b_actf;
+
+ if (hp->hp_dk >= 0) {
+ dk_busy |= 1 << hp->hp_dk;
+ dk_xfer[hp->hp_dk]++;
+ dk_wds[hp->hp_dk] += rs->sc_resid >> 6;
+ }
+ hpibgo(hp->hp_ctlr, hp->hp_slave, C_EXEC,
+ rs->sc_addr, rs->sc_resid, bp->b_flags & B_READ);
+}
+
+rdintr(unit)
+ register int unit;
+{
+ register struct rd_softc *rs = &rd_softc[unit];
+ register struct buf *bp = rdtab[unit].b_actf;
+ register struct hp_device *hp = rs->sc_hd;
+ u_char stat = 13; /* in case hpibrecv fails */
+ int restart;
+
+#ifdef DEBUG
+ if (rddebug & RDB_FOLLOW)
+ printf("rdintr(%d): bp %x, %c, flags %x\n", unit, bp,
+ (bp->b_flags & B_READ) ? 'R' : 'W', rs->sc_flags);
+ if (bp == NULL) {
+ printf("rd%d: bp == NULL\n", unit);
+ return;
+ }
+#endif
+ if (hp->hp_dk >= 0)
+ dk_busy &= ~(1 << hp->hp_dk);
+ if (rs->sc_flags & RDF_SEEK) {
+ rs->sc_flags &= ~RDF_SEEK;
+ if (hpibustart(hp->hp_ctlr))
+ rdgo(unit);
+ return;
+ }
+ if ((rs->sc_flags & RDF_SWAIT) == 0) {
+#ifdef DEBUG
+ rdstats[unit].rdpolltries++;
+#endif
+ if (hpibpptest(hp->hp_ctlr, hp->hp_slave) == 0) {
+#ifdef DEBUG
+ rdstats[unit].rdpollwaits++;
+#endif
+ if (hp->hp_dk >= 0)
+ dk_busy |= 1 << hp->hp_dk;
+ rs->sc_flags |= RDF_SWAIT;
+ hpibawait(hp->hp_ctlr);
+ return;
+ }
+ } else
+ rs->sc_flags &= ~RDF_SWAIT;
+ if (!hpibrecv(hp->hp_ctlr, hp->hp_slave, C_QSTAT, &stat, 1) || stat) {
+#ifdef DEBUG
+ if (rddebug & RDB_ERROR)
+ printf("rdintr: recv failed or bad stat %d\n", stat);
+#endif
+ restart = rderror(unit);
+#ifdef DEBUG
+ rdstats[unit].rdretries++;
+#endif
+ if (rdtab[unit].b_errcnt++ < RDRETRY) {
+ if (restart)
+ rdstart(unit);
+ return;
+ }
+ bp->b_flags |= B_ERROR;
+ bp->b_error = EIO;
+ }
+ rdtab[unit].b_errcnt = 0;
+ rdtab[unit].b_actf = bp->b_actf;
+ bp->b_resid = 0;
+ biodone(bp);
+ hpibfree(&rs->sc_dq);
+ if (rdtab[unit].b_actf)
+ rdustart(unit);
+ else
+ rdtab[unit].b_active = 0;
+}
+
+rdstatus(rs)
+ register struct rd_softc *rs;
+{
+ register int c, s;
+ u_char stat;
+ int rv;
+
+ c = rs->sc_hd->hp_ctlr;
+ s = rs->sc_hd->hp_slave;
+ rs->sc_rsc.c_unit = C_SUNIT(rs->sc_punit);
+ rs->sc_rsc.c_sram = C_SRAM;
+ rs->sc_rsc.c_ram = C_RAM;
+ rs->sc_rsc.c_cmd = C_STATUS;
+ bzero((caddr_t)&rs->sc_stat, sizeof(rs->sc_stat));
+ rv = hpibsend(c, s, C_CMD, &rs->sc_rsc, sizeof(rs->sc_rsc));
+ if (rv != sizeof(rs->sc_rsc)) {
+#ifdef DEBUG
+ if (rddebug & RDB_STATUS)
+ printf("rdstatus: send C_CMD failed %d != %d\n",
+ rv, sizeof(rs->sc_rsc));
+#endif
+ return(1);
+ }
+ rv = hpibrecv(c, s, C_EXEC, &rs->sc_stat, sizeof(rs->sc_stat));
+ if (rv != sizeof(rs->sc_stat)) {
+#ifdef DEBUG
+ if (rddebug & RDB_STATUS)
+ printf("rdstatus: send C_EXEC failed %d != %d\n",
+ rv, sizeof(rs->sc_stat));
+#endif
+ return(1);
+ }
+ rv = hpibrecv(c, s, C_QSTAT, &stat, 1);
+ if (rv != 1 || stat) {
+#ifdef DEBUG
+ if (rddebug & RDB_STATUS)
+ printf("rdstatus: recv failed %d or bad stat %d\n",
+ rv, stat);
+#endif
+ return(1);
+ }
+ return(0);
+}
+
+/*
+ * Deal with errors.
+ * Returns 1 if request should be restarted,
+ * 0 if we should just quietly give up.
+ */
+rderror(unit)
+ int unit;
+{
+ struct rd_softc *rs = &rd_softc[unit];
+ register struct rd_stat *sp;
+ struct buf *bp;
+ daddr_t bn, pbn;
+
+ if (rdstatus(rs)) {
+#ifdef DEBUG
+ printf("rd%d: couldn't get status\n", unit);
+#endif
+ rdreset(rs, rs->sc_hd);
+ return(1);
+ }
+ sp = &rs->sc_stat;
+ if (sp->c_fef & FEF_REXMT)
+ return(1);
+ if (sp->c_fef & FEF_PF) {
+ rdreset(rs, rs->sc_hd);
+ return(1);
+ }
+ /*
+ * Unit requests release for internal maintenance.
+ * We just delay awhile and try again later. Use expontially
+ * increasing backoff ala ethernet drivers since we don't really
+ * know how long the maintenance will take. With RDWAITC and
+ * RDRETRY as defined, the range is 1 to 32 seconds.
+ */
+ if (sp->c_fef & FEF_IMR) {
+ extern int hz;
+ int rdtimo = RDWAITC << rdtab[unit].b_errcnt;
+#ifdef DEBUG
+ printf("rd%d: internal maintenance, %d second timeout\n",
+ unit, rdtimo);
+ rdstats[unit].rdtimeouts++;
+#endif
+ hpibfree(&rs->sc_dq);
+ timeout(rdrestart, unit, rdtimo*hz);
+ return(0);
+ }
+ bp = rdtab[unit].b_actf;
+ /*
+ * First conjure up the block number at which the error occured.
+ * Note that not all errors report a block number, in that case
+ * we just use b_blkno.
+ */
+ pbn = RDSTOB(rs->sc_info->nbpc *
+ rs->sc_info->sizes[rdpart(bp->b_dev)].cyloff);
+ if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) ||
+ (sp->c_ief & IEF_RRMASK)) {
+ bn = pbn + bp->b_blkno;
+ pbn = bp->b_blkno;
+ } else {
+ bn = RDSTOB(sp->c_blk);
+ pbn = bn - pbn;
+ }
+ /*
+ * Now output a generic message suitable for badsect.
+ * Note that we don't use harderr cuz it just prints
+ * out b_blkno which is just the beginning block number
+ * of the transfer, not necessary where the error occured.
+ */
+ printf("rd%d%c: hard error sn%d\n",
+ rdunit(bp->b_dev), 'a'+rdpart(bp->b_dev), pbn);
+ /*
+ * Now report the status as returned by the hardware with
+ * attempt at interpretation (unless debugging).
+ */
+ printf("rd%d %s error:",
+ unit, (bp->b_flags & B_READ) ? "read" : "write");
+#ifdef DEBUG
+ if (rddebug & RDB_ERROR) {
+ /* status info */
+ printf("\n volume: %d, unit: %d\n",
+ (sp->c_vu>>4)&0xF, sp->c_vu&0xF);
+ rdprinterr("reject", sp->c_ref, err_reject);
+ rdprinterr("fault", sp->c_fef, err_fault);
+ rdprinterr("access", sp->c_aef, err_access);
+ rdprinterr("info", sp->c_ief, err_info);
+ printf(" block: %d, P1-P10: ", bn);
+ printf("%s", hexstr(*(u_int *)&sp->c_raw[0], 8));
+ printf("%s", hexstr(*(u_int *)&sp->c_raw[4], 8));
+ printf("%s\n", hexstr(*(u_short *)&sp->c_raw[8], 4));
+ /* command */
+ printf(" ioc: ");
+ printf("%s", hexstr(*(u_int *)&rs->sc_ioc.c_pad, 8));
+ printf("%s", hexstr(*(u_short *)&rs->sc_ioc.c_hiaddr, 4));
+ printf("%s", hexstr(*(u_int *)&rs->sc_ioc.c_addr, 8));
+ printf("%s", hexstr(*(u_short *)&rs->sc_ioc.c_nop2, 4));
+ printf("%s", hexstr(*(u_int *)&rs->sc_ioc.c_len, 8));
+ printf("%s\n", hexstr(*(u_short *)&rs->sc_ioc.c_cmd, 4));
+ return(1);
+ }
+#endif
+ printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n",
+ (sp->c_vu>>4)&0xF, sp->c_vu&0xF,
+ sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief);
+ printf("P1-P10: ");
+ printf("%s", hexstr(*(u_int *)&sp->c_raw[0], 8));
+ printf("%s", hexstr(*(u_int *)&sp->c_raw[4], 8));
+ printf("%s\n", hexstr(*(u_short *)&sp->c_raw[8], 4));
+ return(1);
+}
+
+rdread(dev, uio)
+ dev_t dev;
+ struct uio *uio;
+{
+ register int unit = rdunit(dev);
+
+ return(physio(rdstrategy, &rdbuf[unit], dev, B_READ, minphys, uio));
+}
+
+rdwrite(dev, uio)
+ dev_t dev;
+ struct uio *uio;
+{
+ register int unit = rdunit(dev);
+
+ return(physio(rdstrategy, &rdbuf[unit], dev, B_WRITE, minphys, uio));
+}
+
+/*ARGSUSED*/
+rdioctl(dev, cmd, data, flag)
+ dev_t dev;
+ int cmd;
+ caddr_t data;
+ int flag;
+{
+ return(EINVAL);
+}
+
+rdsize(dev)
+ dev_t dev;
+{
+ register int unit = rdunit(dev);
+ register struct rd_softc *rs = &rd_softc[unit];
+
+ if (unit >= NRD || (rs->sc_flags & RDF_ALIVE) == 0)
+ return(-1);
+ return(rs->sc_info->sizes[rdpart(dev)].nblocks);
+}
+
+#ifdef DEBUG
+rdprinterr(str, err, tab)
+ char *str;
+ short err;
+ char *tab[];
+{
+ register int i;
+ int printed;
+
+ if (err == 0)
+ return;
+ printf(" %s error field:", str, err);
+ printed = 0;
+ for (i = 0; i < 16; i++)
+ if (err & (0x8000 >> i))
+ printf("%s%s", printed++ ? " + " : " ", tab[i]);
+ printf("\n");
+}
+#endif
+
+#include "machine/pte.h"
+#include "machine/vmparam.h"
+#include "../h/vmmac.h"
+
+/*
+ * Non-interrupt driven, non-dma dump routine.
+ */
+rddump(dev)
+ dev_t dev;
+{
+ int part = rdpart(dev);
+ int unit = rdunit(dev);
+ register struct rd_softc *rs = &rd_softc[unit];
+ register struct hp_device *hp = rs->sc_hd;
+ register daddr_t baddr;
+ register int maddr;
+ register int pages, i;
+ char stat;
+ extern int lowram, dumpsize;
+
+ pages = dumpsize;
+#ifdef DEBUG
+ if (rddebug & RDB_DUMP)
+ printf("rddump(%x): u %d p %d dumplo %d ram %x pmem %d\n",
+ dev, unit, part, dumplo, lowram, ctod(pages));
+#endif
+ /* is drive ok? */
+ if (unit >= NRD || (rs->sc_flags & RDF_ALIVE) == 0)
+ return (ENXIO);
+ /* HPIB idle? */
+ if (!hpibreq(&rs->sc_dq)) {
+#ifdef DEBUG
+ /* is this a safe thing to do?? */
+ hpibreset(hp->hp_ctlr);
+ rdreset(rs, rs->sc_hd);
+ printf("[ drive %d reset ] ", unit);
+#else
+ return (EFAULT);
+#endif
+ }
+ /* dump parameters in range? */
+ if (dumplo < 0 || dumplo >= rs->sc_info->sizes[part].nblocks)
+ return (EINVAL);
+ if (dumplo + ctod(pages) > rs->sc_info->sizes[part].nblocks)
+ pages = dtoc(rs->sc_info->sizes[part].nblocks - dumplo);
+ maddr = lowram;
+ baddr = dumplo + rs->sc_info->nbpc * rs->sc_info->sizes[part].cyloff;
+#ifdef DEBUG
+ if (rddebug & RDB_DUMP)
+ printf("rddump: dumping %d pages from %x to disk block %d\n",
+ pages, maddr, baddr);
+#endif
+ for (i = 0; i < pages; i++) {
+#ifdef DEBUG
+#define NPGMB (1024*1024/NBPG)
+ /* print out how many Mbs we have dumped */
+ if (i && (i % NPGMB) == 0)
+ printf("%d ", i / NPGMB);
+#undef NPBMG
+#endif
+ rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit);
+ rs->sc_ioc.c_volume = C_SVOL(0);
+ rs->sc_ioc.c_saddr = C_SADDR;
+ rs->sc_ioc.c_hiaddr = 0;
+ rs->sc_ioc.c_addr = RDBTOS(baddr);
+ rs->sc_ioc.c_nop2 = C_NOP;
+ rs->sc_ioc.c_slen = C_SLEN;
+ rs->sc_ioc.c_len = NBPG;
+ rs->sc_ioc.c_cmd = C_WRITE;
+ hpibsend(hp->hp_ctlr, hp->hp_slave, C_CMD,
+ &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2);
+ if (hpibswait(hp->hp_ctlr, hp->hp_slave)) {
+#ifdef DEBUG
+ if (rddebug & RDB_DUMP)
+ printf("rddump: IOC wait timeout\n");
+#endif
+ return (EIO);
+ }
+ mapin(mmap, (u_int)vmmap, btop(maddr), PG_URKR|PG_CI|PG_V);
+ hpibsend(hp->hp_ctlr, hp->hp_slave, C_EXEC, vmmap, NBPG);
+ if (hpibswait(hp->hp_ctlr, hp->hp_slave)) {
+#ifdef DEBUG
+ if (rddebug & RDB_DUMP)
+ printf("rddump: write wait timeout\n");
+#endif
+ }
+ hpibrecv(hp->hp_ctlr, hp->hp_slave, C_QSTAT, &stat, 1);
+ if (stat) {
+#ifdef DEBUG
+ if (rddebug & RDB_DUMP)
+ printf("rddump: write failed, status %x\n",
+ stat);
+#endif
+ return (EIO);
+ }
+ maddr += NBPG;
+ baddr += ctod(1);
+ }
+ return (0);
+}
+#endif