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-rw-r--r--sys/i386/isa/ultra14f.c1362
1 files changed, 1362 insertions, 0 deletions
diff --git a/sys/i386/isa/ultra14f.c b/sys/i386/isa/ultra14f.c
new file mode 100644
index 000000000000..8d01bef01fe2
--- /dev/null
+++ b/sys/i386/isa/ultra14f.c
@@ -0,0 +1,1362 @@
+/*
+ * Ported for use with the UltraStor 14f by Gary Close (gclose@wvnvms.wvnet.edu)
+ * Slight fixes to timeouts to run with the 34F
+ * Thanks to Julian Elischer for advice and help with this port.
+ *
+ * Written by Julian Elischer (julian@tfs.com)
+ * for TRW Financial Systems for use under the MACH(2.5) operating system.
+ *
+ * TRW Financial Systems, in accordance with their agreement with Carnegie
+ * Mellon University, makes this software available to CMU to distribute
+ * or use in any manner that they see fit as long as this message is kept with
+ * the software. For this reason TFS also grants any other persons or
+ * organisations permission to use or modify this software.
+ *
+ * TFS supplies this software to be publicly redistributed
+ * on the understanding that TFS is not responsible for the correct
+ * functioning of this software in any circumstances.
+ *
+ * commenced: Sun Sep 27 18:14:01 PDT 1992
+ * slight mod to make work with 34F as well: Wed Jun 2 18:05:48 WST 1993
+ *
+ * today: Fri Jun 2 17:21:03 EST 1994
+ * added 24F support ++sg
+ *
+ * $Id: ultra14f.c,v 1.60 1998/06/08 09:47:37 bde Exp $
+ */
+
+#ifdef KERNEL /* don't laugh.. this compiles to a program too.. look */
+#include "uha.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/buf.h>
+#include <sys/kernel.h>
+
+#include <machine/clock.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+#include <i386/isa/isa_device.h>
+#endif /*KERNEL */
+#include <scsi/scsiconf.h>
+#include <scsi/scsi_debug.h>
+
+/* */
+
+#ifndef KERNEL
+#define NUHA 1
+#endif /*KERNEL */
+
+typedef struct {
+ unsigned char addr[4];
+} physaddr;
+typedef struct {
+ unsigned char len[4];
+} physlen;
+
+#define KVTOPHYS(x) vtophys(x)
+
+#define UHA_MSCP_MAX 32 /* store up to 32MSCPs at any one time
+ * MAX = ?
+ */
+#define MSCP_HASH_SIZE 32 /* when we have a physical addr. for
+ * a mscp and need to find the mscp in
+ * space, look it up in the hash table
+ */
+#define MSCP_HASH_SHIFT 9 /* only hash on multiples of 512 */
+#define MSCP_HASH(x) ((((long int)(x))>>MSCP_HASH_SHIFT) % MSCP_HASH_SIZE)
+
+#define UHA_NSEG 33 /* number of dma segments supported */
+
+/************************** board definitions *******************************/
+struct uha_reg
+{
+ int id; /* product id reg */
+ int type; /* product type reg */
+ int ectl; /* EISA expansion control bits */
+ int config; /* configuration bits */
+ int lmask; /* local doorbell mask reg */
+ int lint; /* local doorbell int/stat reg */
+ int smask; /* system doorbell mask reg */
+ int sint; /* system doorbell int/stat reg */
+ int ogmcmd; /* outgoing mail command */
+ int ogmptr; /* outgoing mail ptr */
+ int icmcmd; /* incoming mail command */
+ int icmptr; /* incoming mail ptr */
+};
+
+struct uha_bits
+{
+ /* uha_lint (read) */
+ unsigned char ldip;
+
+ /* uha_lint (write) */
+ unsigned char adrst;
+ unsigned char sbrst;
+ unsigned char asrst;
+ unsigned char abort;
+ unsigned char ogmint;
+
+ /* uha_sint (read) */
+ unsigned char sintp;
+ unsigned char abort_succ;
+ unsigned char abort_fail;
+
+ /* uha_sint (write) */
+ unsigned char abort_ack;
+ unsigned char icm_ack;
+};
+
+
+/*
+ * UHA_LINT bits (read)
+ */
+
+#define UHA_LDIP 0x80 /* local doorbell int pending */
+#define U24_LDIP 0x02
+
+/*
+ * UHA_LINT bits (write)
+ */
+
+#define UHA_ADRST 0x40 /* adapter soft reset */
+#define UHA_SBRST 0x20 /* scsi bus reset */
+#define UHA_ASRST 0x60 /* adapter and scsi reset */
+#define UHA_ABORT 0x10 /* abort MSCP */
+#define UHA_OGMINT 0x01 /* tell adapter to get mail */
+#define U24_SBRST 0x40 /* scsi bus reset */
+#define U24_ADRST 0x80 /* adapter soft reset */
+#define U24_ASRST 0xc0 /* adapter and scsi reset */
+#define U24_ABORT 0x10 /* same? */
+#define U24_OGMINT 0x02 /* enable OGM interrupt */
+
+/*
+ * UHA_SMASK bits (read)
+ */
+
+#define UHA_SINTEN 0x80 /* system doorbell interupt Enabled */
+#define UHA_ABORT_COMPLETE_EN 0x10 /* abort MSCP command complete int Enabled */
+#define UHA_ICM_ENABLED 0x01 /* ICM interrupt enabled */
+
+/*
+ * UHA_SMASK bits (write)
+ */
+
+#define UHA_ENSINT 0x80 /* enable system doorbell interrupt */
+#define UHA_EN_ABORT_COMPLETE 0x10 /* enable abort MSCP complete int */
+#define UHA_ENICM 0x01 /* enable ICM interrupt */
+
+/*
+ * UHA_SINT bits (read)
+ */
+
+#define UHA_SINTP 0x80 /* system doorbell int pending */
+#define UHA_ABORT_SUCC 0x10 /* abort MSCP successful */
+#define UHA_ABORT_FAIL 0x18 /* abort MSCP failed */
+#define U24_SINTP 0x02 /* system doorbell int pending */
+#define U24_ABORT_SUCC 0x10 /* same? */
+#define U24_ABORT_FAIL 0x18 /* same? */
+
+/*
+ * UHA_SINT bits (write)
+ */
+
+#define UHA_ABORT_ACK 0x18 /* acknowledge status and clear */
+#define UHA_ICM_ACK 0x01 /* acknowledge ICM and clear */
+#define U24_ABORT_ACK 0x18 /* same */
+#define U24_ICM_ACK 0x02 /* 24F acknowledge ICM and clear */
+
+/*
+ * UHA_CONF1 bits (read only)
+ */
+
+#define UHA_DMA_CH5 0x00 /* DMA channel 5 */
+#define UHA_DMA_CH6 0x40 /* 6 */
+#define UHA_DMA_CH7 0x80 /* 7 */
+#define UHA_IRQ15 0x00 /* IRQ 15 */
+#define UHA_IRQ14 0x10 /* 14 */
+#define UHA_IRQ11 0x20 /* 11 */
+#define UHA_IRQ10 0x30 /* 10 */
+
+#define EISA_CONFIG 0x0c80 /* Configuration base port */
+#define EISA_DISABLE 0x01 /* EISA disable bit */
+
+/*
+ * ha_status error codes
+ */
+
+#define UHA_NO_ERR 0x00 /* No error supposedly */
+#define UHA_SBUS_ABORT_ERR 0x84 /* scsi bus abort error */
+#define UHA_SBUS_TIMEOUT 0x91 /* scsi bus selection timeout */
+#define UHA_SBUS_OVER_UNDER 0x92 /* scsi bus over/underrun */
+#define UHA_BAD_SCSI_CMD 0x96 /* illegal scsi command */
+#define UHA_AUTO_SENSE_ERR 0x9b /* auto request sense err */
+#define UHA_SBUS_RES_ERR 0xa3 /* scsi bus reset error */
+#define UHA_BAD_SG_LIST 0xff /* invalid scatter gath list */
+
+struct uha_dma_seg {
+ physaddr addr;
+ physlen len;
+};
+
+struct mscp {
+ unsigned int opcode:3;
+#define U14_HAC 0x01 /* host adapter command */
+#define U14_TSP 0x02 /* target scsi pass through command */
+#define U14_SDR 0x04 /* scsi device reset */
+ unsigned int xdir:2; /* xfer direction */
+#define U14_SDET 0x00 /* determined by scsi command */
+#define U14_SDIN 0x01 /* scsi data in */
+#define U14_SDOUT 0x02 /* scsi data out */
+#define U14_NODATA 0x03 /* no data xfer */
+ unsigned int dcn:1; /* disable disconnect for this command */
+ unsigned int ca:1; /* cache control */
+ unsigned int sgth:1; /* scatter gather flag */
+ unsigned int target:3;
+ unsigned int chan:2; /* scsi channel (always 0 for 14f) */
+ unsigned int lun:3;
+ physaddr data;
+ physlen datalen;
+ physaddr link;
+ unsigned char link_id;
+ unsigned char sg_num; /*number of scat gath segs */
+ /*in s-g list if sg flag is */
+ /*set. starts at 1, 8bytes per */
+ unsigned char senselen;
+ unsigned char cdblen;
+ unsigned char cdb[12];
+ unsigned char ha_status;
+ unsigned char targ_status;
+ physaddr sense; /* if 0 no auto sense */
+ /*-----------------end of hardware supported fields----------------*/
+ struct mscp *next; /* in free list */
+ struct scsi_xfer *xs; /* the scsi_xfer for this cmd */
+ int flags;
+#define MSCP_FREE 0
+#define MSCP_ACTIVE 1
+#define MSCP_ABORTED 2
+ struct uha_dma_seg uha_dma[UHA_NSEG];
+ struct scsi_sense_data mscp_sense;
+ struct mscp *nexthash;
+ long int hashkey;
+};
+
+static struct uha_data {
+ int flags;
+#define UHA_INIT 0x01
+#define UHA_24F 0x02
+ int baseport;
+ struct mscp *mscphash[MSCP_HASH_SIZE];
+ struct mscp *free_mscp;
+ int unit;
+ int our_id; /* our scsi id */
+ int vect;
+ int dma;
+ int nummscps;
+ struct scsi_link sc_link;
+ struct uha_reg *ur;
+ struct uha_bits *ub;
+} *uhadata[NUHA];
+
+static int uha_abort __P((struct uha_data *uha, struct mscp *mscp));
+static u_int32_t uha_adapter_info __P((int unit));
+static int uha_attach __P((struct isa_device *dev));
+static void uha_done __P((struct uha_data *uha, struct mscp *mscp));
+static void uha_free_mscp __P((struct uha_data *uha, struct mscp *mscp,
+ int flags));
+static struct mscp *
+ uha_get_mscp __P((struct uha_data *uha, int flags));
+static int uha_init __P((struct uha_data *uha));
+static int uha24_init __P((struct uha_data *uha));
+static void uhaminphys __P((struct buf *bp));
+static struct mscp *
+ uha_mscp_phys_kv __P((struct uha_data *uha, long mscp_phys));
+static int uha_poll __P((struct uha_data *uha, int wait));
+#ifdef UHADEBUG
+static void uha_print_active_mscp __P((struct uha_data *uha));
+static void uha_print_mscp __P((struct mscp *mscp));
+#endif
+static int uhaprobe __P((struct isa_device *dev));
+static int32_t uha_scsi_cmd __P((struct scsi_xfer *xs));
+static void uha_send_mbox __P((struct uha_data *uha, struct mscp *mscp));
+static timeout_t
+ uha_timeout;
+
+static unsigned long int scratch;
+#define EISA_MAX_SLOTS 16 /* XXX This should go into a comon header */
+static int uha_slot; /* slot last board was found in */
+static int uha_unit;
+#define UHA_SHOWMSCPS 0x01
+#define UHA_SHOWINTS 0x02
+#define UHA_SHOWCMDS 0x04
+#define UHA_SHOWMISC 0x08
+#define FAIL 1
+#define SUCCESS 0
+#define PAGESIZ 4096
+
+#ifdef KERNEL
+struct isa_driver uhadriver =
+{
+ uhaprobe,
+ uha_attach,
+ "uha"
+};
+
+static struct scsi_adapter uha_switch =
+{
+ uha_scsi_cmd,
+ uhaminphys,
+ 0,
+ 0,
+ uha_adapter_info,
+ "uha",
+ { 0, 0 }
+};
+
+/* the below structure is so we have a default dev struct for out link struct */
+static struct scsi_device uha_dev =
+{
+ NULL, /* Use default error handler */
+ NULL, /* have a queue, served by this */
+ NULL, /* have no async handler */
+ NULL, /* Use default 'done' routine */
+ "uha",
+ 0,
+ { 0, 0 }
+};
+
+#endif /*KERNEL */
+
+#ifndef KERNEL
+main()
+{
+ printf("uha_data is %d bytes\n", sizeof(struct uha_data));
+ printf("mscp is %d bytes\n", sizeof(struct mscp));
+}
+
+#else /*KERNEL*/
+/*
+ * Function to send a command out through a mailbox
+ */
+static void
+uha_send_mbox(struct uha_data *uha, struct mscp *mscp)
+{
+ int spincount = 100000; /* 1s should be enough */
+ struct uha_reg *ur = uha->ur;
+ struct uha_bits *ub = uha->ub;
+ int s = splbio();
+
+ while (--spincount) {
+ if ((inb(ur->lint) & ub->ldip) == 0)
+ break;
+ DELAY(100);
+ }
+ if (spincount == 0) {
+ printf("uha%d: uha_send_mbox, board is not responding\n",
+ uha->unit);
+ Debugger("ultra14f");
+ }
+ outl(ur->ogmptr, KVTOPHYS(mscp));
+ if (uha->flags & UHA_24F) outb(ur->ogmcmd, 1);
+ outb(ur->lint, ub->ogmint);
+ splx(s);
+}
+
+/*
+ * Function to send abort to 14f
+ */
+int
+uha_abort(struct uha_data *uha, struct mscp *mscp)
+{
+ int spincount = 100; /* 1 mSec */
+ int abortcount = 200000; /*2 secs */
+ struct uha_reg *ur = uha->ur;
+ struct uha_bits *ub = uha->ub;
+ int s = splbio();
+
+ while (--spincount) {
+ if ((inb(ur->lint) & ub->ldip) == 0)
+ break;
+ DELAY(10);
+ }
+ if (spincount == 0) {
+ printf("uha%d: uha_abort, board is not responding\n", uha->unit);
+ Debugger("ultra14f");
+ }
+ outl(ur->ogmptr,KVTOPHYS(mscp));
+ if (uha->flags & UHA_24F) outb(ur->ogmcmd, 1);
+ outb(ur->lint, ub->abort);
+
+ while (--abortcount) {
+ if (inb(ur->sint) & ub->abort_fail)
+ break;
+ DELAY(10);
+ }
+ if (abortcount == 0) {
+ printf("uha%d: uha_abort, board is not responding\n", uha->unit);
+ Debugger("ultra14f");
+ }
+ if ((inb(ur->sint) & 0x10) != 0) {
+ outb(ur->sint, ub->abort_ack);
+ splx(s);
+ return (1);
+ } else {
+ outb(ur->sint, ub->abort_ack);
+ splx(s);
+ return (0);
+ }
+}
+
+/*
+ * Function to poll for command completion when in poll mode.
+ *
+ * wait = timeout in msec
+ */
+static int
+uha_poll(struct uha_data *uha, int wait)
+{
+ struct uha_reg *ur = uha->ur;
+ struct uha_bits *ub = uha->ub;
+ int stport = ur->sint;
+
+ while (--wait) {
+ if (inb(stport) & ub->sintp)
+ break;
+ DELAY(1000); /* 1 mSec per loop */
+ }
+ if (wait == 0) {
+ printf("uha%d: uha_poll, board is not responding\n", uha->unit);
+ return (EIO);
+ }
+ uhaintr(uha->unit);
+ return (0);
+}
+
+/*
+ * Check if the device can be found at the port given and if so, set it up
+ * ready for further work as an argument, takes the isa_device structure
+ * from autoconf.c
+ */
+int
+uhaprobe(dev)
+ struct isa_device *dev;
+{
+ int unit = uha_unit;
+ struct uha_data *uha;
+
+ dev->id_unit = unit; /* XXX */
+
+ /*
+ * find unit and check we have that many defined
+ */
+ if (unit >= NUHA) {
+ printf("uha: unit number (%d) too high\n", unit);
+ return (0);
+ }
+ dev->id_unit = unit;
+
+ /*
+ * Allocate a storage area for us
+ */
+ if (uhadata[unit]) {
+ printf("uha%d: memory already allocated\n", unit);
+ return 0;
+ }
+ uha = malloc(sizeof(struct uha_data), M_TEMP, M_NOWAIT);
+ if (!uha) {
+ printf("uha%d: cannot malloc!\n", unit);
+ return 0;
+ }
+ bzero(uha, sizeof(struct uha_data));
+
+ uha->ur = malloc(sizeof(struct uha_reg), M_TEMP, M_NOWAIT);
+ if (!uha->ur) {
+ printf("uha%d: cannot malloc!\n", unit);
+ return 0;
+ }
+ bzero(uha->ur, sizeof(struct uha_reg));
+
+ uha->ub = malloc(sizeof(struct uha_bits), M_TEMP, M_NOWAIT);
+ if (!uha->ub) {
+ printf("uha%d: cannot malloc!\n", unit);
+ return 0;
+ }
+ bzero(uha->ub, sizeof(struct uha_bits));
+
+ uhadata[unit] = uha;
+ uha->unit = unit;
+ uha->baseport = dev->id_iobase;
+ /*
+ * Try initialise a unit at this location
+ * sets up dma and bus speed, loads uha->vect
+ */
+ if (uha_init(uha) != 0 && uha24_init(uha) != 0) {
+ uhadata[unit] = NULL;
+ free(uha->ur, M_TEMP);
+ free(uha->ub, M_TEMP);
+ free(uha, M_TEMP);
+ return (0);
+ }
+ /* if it's there put in its interrupt and DRQ vectors */
+ dev->id_irq = (1 << uha->vect);
+ dev->id_drq = uha->dma;
+ dev->id_iobase = uha->baseport;
+
+ uha_unit++;
+ return (16);
+}
+
+/*
+ * Attach all the sub-devices we can find
+ */
+int
+uha_attach(dev)
+ struct isa_device *dev;
+{
+ int unit = dev->id_unit;
+ struct uha_data *uha = uhadata[unit];
+ struct scsibus_data *scbus;
+
+ /*
+ * fill in the prototype scsi_link.
+ */
+ uha->sc_link.adapter_unit = unit;
+ uha->sc_link.adapter_targ = uha->our_id;
+ uha->sc_link.adapter_softc = uha;
+ uha->sc_link.adapter = &uha_switch;
+ uha->sc_link.device = &uha_dev;
+ uha->sc_link.flags = SDEV_BOUNCE;
+
+ /*
+ * Prepare the scsibus_data area for the upperlevel
+ * scsi code.
+ */
+ scbus = scsi_alloc_bus();
+ if(!scbus)
+ return 0;
+ scbus->adapter_link = &uha->sc_link;
+
+ /*
+ * ask the adapter what subunits are present
+ */
+ scsi_attachdevs(scbus);
+
+ return 1;
+}
+
+/*
+ * Return some information to the caller about
+ * the adapter and its capabilities
+ */
+u_int32_t
+uha_adapter_info(unit)
+ int unit;
+{
+ return (2); /* 2 outstanding requests at a time per device */
+}
+
+/*
+ * Catch an interrupt from the adaptor
+ */
+void
+uhaintr(unit)
+ int unit;
+{
+ struct uha_data *uha = uhadata[unit];
+ struct mscp *mscp;
+ u_char uhastat;
+ unsigned long int mboxval;
+ struct uha_reg *ur;
+ struct uha_bits *ub;
+ int port;
+
+ ur = uha->ur;
+ ub = uha->ub;
+ port = uha->baseport;
+
+#ifdef UHADEBUG
+ printf("uhaintr ");
+#endif /*UHADEBUG */
+
+ while ((uhastat = inb(ur->sint)) & ub->sintp) {
+ /*
+ * First get all the information and then
+ * acknowledge the interrupt
+ */
+ mboxval = inl(ur->icmptr);
+ outb(ur->sint, ub->icm_ack);
+ if (uha->flags & UHA_24F) outb(ur->icmcmd, 0);
+
+#ifdef UHADEBUG
+ printf("status = 0x%x ", uhastat);
+#endif /*UHADEBUG*/
+ /*
+ * Process the completed operation
+ */
+
+ mscp = uha_mscp_phys_kv(uha, mboxval);
+ if (!mscp) {
+ printf("uha: BAD MSCP RETURNED\n");
+ return; /* whatever it was, it'll timeout */
+ }
+ untimeout(uha_timeout, (caddr_t)mscp, mscp->xs->timeout_ch);
+
+ uha_done(uha, mscp);
+ }
+}
+
+/*
+ * We have a mscp which has been processed by the adaptor, now we look to see
+ * how the operation went.
+ */
+void
+uha_done(uha, mscp)
+ struct uha_data *uha;
+ struct mscp *mscp;
+{
+ struct scsi_sense_data *s1, *s2;
+ struct scsi_xfer *xs = mscp->xs;
+
+ SC_DEBUG(xs->sc_link, SDEV_DB2, ("uha_done\n"));
+ /*
+ * Otherwise, put the results of the operation
+ * into the xfer and call whoever started it
+ */
+ if (((mscp->ha_status != UHA_NO_ERR) || (mscp->targ_status != SCSI_OK))
+ && ((xs->flags & SCSI_ERR_OK) == 0)) {
+
+ s1 = &(mscp->mscp_sense);
+ s2 = &(xs->sense);
+
+ if (mscp->ha_status != UHA_NO_ERR) {
+ switch (mscp->ha_status) {
+ case UHA_SBUS_ABORT_ERR:
+ case UHA_SBUS_TIMEOUT: /* No sel response */
+ SC_DEBUG(xs->sc_link, SDEV_DB3,
+ ("abort or timeout; ha_status 0x%x\n",
+ mscp->ha_status));
+ xs->error = XS_TIMEOUT;
+ break;
+ case UHA_SBUS_OVER_UNDER:
+ SC_DEBUG(xs->sc_link, SDEV_DB3,
+ ("scsi bus xfer over/underrun\n"));
+ xs->error = XS_DRIVER_STUFFUP;
+ break;
+ default: /* Other scsi protocol messes */
+ xs->error = XS_DRIVER_STUFFUP;
+ printf("uha%d: unexpected ha_status 0x%x (target status 0x%x)\n",
+ uha->unit, mscp->ha_status,
+ mscp->targ_status);
+ break;
+ }
+ } else {
+ /* Target status problem */
+ SC_DEBUG(xs->sc_link, SDEV_DB3, ("target err 0x%x\n",
+ mscp->targ_status));
+ switch (mscp->targ_status) {
+ case 0x02:
+ *s2 = *s1;
+ xs->error = XS_SENSE;
+ break;
+ case 0x08:
+ xs->error = XS_BUSY;
+ break;
+ default:
+ printf("uha%d: unexpected targ_status 0x%x\n",
+ uha->unit, mscp->targ_status);
+ xs->error = XS_DRIVER_STUFFUP;
+ break;
+ }
+ }
+ }
+ else {
+ /* All went correctly OR errors expected */
+ xs->resid = 0;
+ xs->error = 0;
+ }
+ xs->flags |= ITSDONE;
+ uha_free_mscp(uha, mscp, xs->flags);
+ scsi_done(xs);
+}
+
+/*
+ * A mscp (and hence a mbx-out) is put onto the free list.
+ */
+void
+uha_free_mscp(uha, mscp, flags)
+ struct uha_data *uha;
+ struct mscp *mscp;
+ int flags;
+{
+ unsigned int opri = 0;
+
+ if (!(flags & SCSI_NOMASK))
+ opri = splbio();
+
+ mscp->next = uha->free_mscp;
+ uha->free_mscp = mscp;
+ mscp->flags = MSCP_FREE;
+ /*
+ * If there were none, wake abybody waiting for
+ * one to come free, starting with queued entries
+ */
+ if (!mscp->next) {
+ wakeup((caddr_t)&uha->free_mscp);
+ }
+ if (!(flags & SCSI_NOMASK))
+ splx(opri);
+}
+
+/*
+ * Get a free mscp
+ *
+ * If there are none, see if we can allocate a new one. If so, put it in the
+ * hash table too otherwise either return an error or sleep.
+ */
+static struct mscp *
+uha_get_mscp(uha, flags)
+ struct uha_data *uha;
+ int flags;
+{
+ unsigned opri = 0;
+ struct mscp *mscpp;
+ int hashnum;
+
+ if (!(flags & SCSI_NOMASK))
+ opri = splbio();
+ /*
+ * If we can and have to, sleep waiting for one to come free
+ * but only if we can't allocate a new one
+ */
+ while (!(mscpp = uha->free_mscp)) {
+ if (uha->nummscps < UHA_MSCP_MAX) {
+ if (mscpp = (struct mscp *)malloc(sizeof(struct mscp),
+ M_TEMP,
+ M_NOWAIT)) {
+ bzero(mscpp, sizeof(struct mscp));
+ uha->nummscps++;
+ mscpp->flags = MSCP_ACTIVE;
+ /*
+ * put in the phystokv hash table
+ * Never gets taken out.
+ */
+ mscpp->hashkey = KVTOPHYS(mscpp);
+ hashnum = MSCP_HASH(mscpp->hashkey);
+ mscpp->nexthash = uha->mscphash[hashnum];
+ uha->mscphash[hashnum] = mscpp;
+ } else {
+ printf("uha%d: Can't malloc MSCP\n", uha->unit);
+ }
+ goto gottit;
+ } else {
+ if (!(flags & SCSI_NOSLEEP)) {
+ tsleep((caddr_t)&uha->free_mscp, PRIBIO,
+ "uhamscp", 0);
+ }
+ }
+ }
+ if (mscpp) {
+ /* Get MSCP from from free list */
+ uha->free_mscp = mscpp->next;
+ mscpp->flags = MSCP_ACTIVE;
+ }
+ gottit:
+ if (!(flags & SCSI_NOMASK))
+ splx(opri);
+
+ return (mscpp);
+}
+
+/*
+ * given a physical address, find the mscp that it corresponds to.
+ */
+static struct mscp *
+uha_mscp_phys_kv(uha, mscp_phys)
+ struct uha_data *uha;
+ long int mscp_phys;
+{
+ int hashnum = MSCP_HASH(mscp_phys);
+ struct mscp *mscpp = uha->mscphash[hashnum];
+
+ while (mscpp) {
+ if (mscpp->hashkey == mscp_phys)
+ break;
+ mscpp = mscpp->nexthash;
+ }
+ return mscpp;
+}
+
+/*
+ * Start the board, ready for normal operation
+ */
+int
+uha_init(uha)
+ struct uha_data *uha;
+{
+ volatile unsigned char model;
+ volatile unsigned char submodel;
+ unsigned char config_reg1;
+ unsigned char config_reg2;
+ unsigned char dma_ch;
+ unsigned char irq_ch;
+ unsigned char uha_id;
+ int port = uha->baseport;
+ int resetcount = 4000; /* 4 secs? */
+ struct uha_reg *ur = uha->ur;
+ struct uha_bits *ub = uha->ub;
+
+ /*
+ * Prepare to use a 14/34F.
+ */
+ ur->id = port + 0x04;
+ ur->type = port + 0x00; /* 24F only */
+ ur->ectl = port + 0x00; /* 24F only */
+ ur->config = port + 0x06; /* 0-1 for 14F */
+ ur->lmask = port + 0x00;
+ ur->lint = port + 0x01;
+ ur->smask = port + 0x02;
+ ur->sint = port + 0x03;
+ ur->ogmcmd = port + 0x00; /* 24F only */
+ ur->ogmptr = port + 0x08;
+ ur->icmcmd = port + 0x00; /* 24F only */
+ ur->icmptr = port + 0x0c;
+
+ ub->ldip = UHA_LDIP;
+ ub->adrst = UHA_ADRST;
+ ub->sbrst = UHA_SBRST;
+ ub->asrst = UHA_ASRST;
+ ub->abort = UHA_ABORT;
+ ub->ogmint = UHA_OGMINT;
+ ub->sintp = UHA_SINTP;
+ ub->abort_succ = UHA_ABORT_SUCC;
+ ub->abort_fail = UHA_ABORT_FAIL;
+ ub->abort_ack = UHA_ABORT_ACK;
+ ub->icm_ack = UHA_ICM_ACK;
+
+ model = inb(ur->id);
+ submodel = inb(ur->id + 1);
+ if ((model != 0x56) & (submodel != 0x40)) return(ENXIO);
+ printf("uha%d: reading board settings, ", uha->unit);
+
+ config_reg1 = inb(ur->config);
+ config_reg2 = inb(ur->config + 1);
+ dma_ch = (config_reg1 & 0xc0);
+ irq_ch = (config_reg1 & 0x30);
+ uha_id = (config_reg2 & 0x07);
+
+ switch (dma_ch) {
+ case UHA_DMA_CH5:
+ uha->dma = 5;
+ printf("dma=5 ");
+ break;
+ case UHA_DMA_CH6:
+ uha->dma = 6;
+ printf("dma=6 ");
+ break;
+ case UHA_DMA_CH7:
+ uha->dma = 7;
+ printf("dma=7 ");
+ break;
+ default:
+ printf("illegal dma jumper setting\n");
+ return (EIO);
+ }
+ switch (irq_ch) {
+ case UHA_IRQ10:
+ uha->vect = 10;
+ printf("int=10 ");
+ break;
+ case UHA_IRQ11:
+ uha->vect = 11;
+ printf("int=11 ");
+ break;
+ case UHA_IRQ14:
+ uha->vect = 14;
+ printf("int=14 ");
+ break;
+ case UHA_IRQ15:
+ uha->vect = 15;
+ printf("int=15 ");
+ break;
+ default:
+ printf("illegal int jumper setting\n");
+ return (EIO);
+ }
+
+ /* who are we on the scsi bus */
+ printf("id=%x\n", uha_id);
+ uha->our_id = uha_id;
+
+ /*
+ * Note that we are going and return (to probe)
+ */
+ outb(ur->lint, ub->asrst);
+ while (--resetcount) {
+ if (inb(ur->lint))
+ break;
+ DELAY(1000); /* 1 mSec per loop */
+ }
+ if (resetcount == 0) {
+ printf("uha%d: board timed out during reset\n", uha->unit);
+ return (ENXIO);
+ }
+ outb(ur->smask, 0x81); /* make sure interrupts are enabled */
+ uha->flags |= UHA_INIT;
+ return (0);
+}
+
+
+/*
+ * Initialize an Ultrastor 24F
+ */
+int
+uha24_init(uha)
+ struct uha_data *uha;
+{
+ unsigned char p0, p1, p2, p3, p5, p7;
+ unsigned char id[7], rev, haid;
+ int port = 0, irq;
+ int resetcount = 4000;
+ struct uha_reg *ur = uha->ur;
+ struct uha_bits *ub = uha->ub;
+
+ /* Search for the 24F's product ID */
+ uha_slot++;
+ while (uha_slot < EISA_MAX_SLOTS) {
+ /*
+ * Prepare to use a 24F.
+ */
+ port = EISA_CONFIG | (uha_slot << 12);
+ ur->id = port + 0x00;
+ ur->type = port + 0x02;
+ ur->ectl = port + 0x04;
+ ur->config = port + 0x05; /* 0-2 for 24F */
+ ur->lmask = port + 0x0c;
+ ur->lint = port + 0x0d;
+ ur->smask = port + 0x0e;
+ ur->sint = port + 0x0f;
+ ur->ogmcmd = port + 0x16;
+ ur->ogmptr = port + 0x17;
+ ur->icmcmd = port + 0x1b;
+ ur->icmptr = port + 0x1c;
+
+ ub->ldip = U24_LDIP;
+ ub->adrst = U24_ADRST;
+ ub->sbrst = U24_SBRST;
+ ub->asrst = U24_ASRST;
+ ub->abort = U24_ABORT;
+ ub->ogmint = U24_OGMINT;
+ ub->sintp = U24_SINTP;
+ ub->abort_succ = U24_ABORT_SUCC;
+ ub->abort_fail = U24_ABORT_FAIL;
+ ub->abort_ack = U24_ABORT_ACK;
+ ub->icm_ack = U24_ICM_ACK;
+
+ /*
+ * Make sure an EISA card is installed in this slot,
+ * and if it is make sure that the card is enabled.
+ */
+ outb(ur->id, 0xff);
+ p0 = inb(ur->id);
+ if ((p0 == 0xff) ||
+ ((p0 & 0x80) != 0) ||
+ ((inb(ur->ectl) & EISA_DISABLE) == 0)) {
+ uha_slot++;
+ continue;
+ }
+
+ /* Found an enabled card. Grab the product ID. */
+ p1 = inb(ur->id+1);
+ p2 = inb(ur->type);
+ p3 = inb(ur->type+1);
+ id[0] = 0x40 + ((p0 >> 2) & 0x1f);
+ id[1] = 0x40 + (((p0 & 0x03) << 3) | ((p1 >> 5) & 0x07));
+ id[2] = 0x40 + (p1 & 0x1f);
+ id[3] = hex2ascii((p2 >> 4) & 0x0f);
+ id[4] = hex2ascii(p2 & 0x0f);
+ id[5] = hex2ascii((p3 >> 4) & 0x0f);
+ id[6] = '\0';
+ rev = p3 & 0xf;
+
+ /* We only want the 24F product ID. */
+ if (!strcmp(id, "USC024")) break;
+ uha_slot++;
+ }
+ if (uha_slot == EISA_MAX_SLOTS) return(ENODEV);
+
+ /* We have the card! Grab remaining config. */
+ p5 = inb(ur->config);
+ p7 = inb(ur->config+2);
+
+ switch (p5 & 0xf0) {
+ case 0x10: irq = 15; break;
+ case 0x20: irq = 14; break;
+ case 0x40: irq = 11; break;
+ case 0x80: irq = 10; break;
+ default:
+ printf("uha%d: bad 24F irq\n", uha->unit);
+ return(ENXIO);
+ }
+
+ haid = (p7 & 0x07);
+ printf("uha%d: UltraStor 24F int=%d id=%d\n", uha->unit, irq, haid);
+
+ /* Issue SCSI and adapter reset */
+ outb(ur->lint, ub->asrst);
+ while (--resetcount) {
+ if (inb(ur->lint))
+ break;
+ DELAY(1000); /* 1 mSec per loop */
+ }
+ if (resetcount == 0) {
+ printf("uha%d: board timed out during reset\n", uha->unit);
+ return (ENXIO);
+ }
+ outb(ur->smask, 0xc2); /* make sure interrupts are enabled */
+ uha->flags |= (UHA_INIT | UHA_24F);
+ uha->baseport = port;
+ uha->our_id = haid;
+ uha->vect = irq;
+ uha->dma = -1;
+ return(0);
+}
+
+#ifndef min
+#define min(x,y) (x < y ? x : y)
+#endif /* min */
+
+void
+uhaminphys(bp)
+ struct buf *bp;
+{
+ if (bp->b_bcount > ((UHA_NSEG - 1) * PAGESIZ)) {
+ bp->b_bcount = ((UHA_NSEG - 1) * PAGESIZ);
+ }
+}
+
+/*
+ * start a scsi operation given the command and the data address. Also
+ * needs the unit, target and lu.
+ */
+static int32_t
+uha_scsi_cmd(xs)
+ struct scsi_xfer *xs;
+{
+ struct mscp *mscp;
+ struct uha_dma_seg *sg;
+ int seg; /* scatter gather seg being worked on */
+ int thiskv;
+ unsigned long int thisphys, nextphys;
+ int bytes_this_seg, bytes_this_page, datalen, flags;
+ struct uha_data *uha;
+ int s;
+ unsigned long int templen;
+
+ uha = (struct uha_data *)xs->sc_link->adapter_softc;
+ SC_DEBUG(xs->sc_link, SDEV_DB2, ("uha_scsi_cmd\n"));
+ /*
+ * get a mscp (mbox-out) to use. If the transfer
+ * is from a buf (possibly from interrupt time)
+ * then we can't allow it to sleep
+ */
+ flags = xs->flags;
+ if (xs->bp)
+ flags |= (SCSI_NOSLEEP); /* just to be sure */
+ if (flags & ITSDONE) {
+ printf("uha%d: Already done?", uha->unit);
+ xs->flags &= ~ITSDONE;
+ }
+ if (!(flags & INUSE)) {
+ printf("uha%d: Not in use?", uha->unit);
+ xs->flags |= INUSE;
+ }
+ if (!(mscp = uha_get_mscp(uha, flags))) {
+ xs->error = XS_DRIVER_STUFFUP;
+ return (TRY_AGAIN_LATER);
+ }
+ SC_DEBUG(xs->sc_link, SDEV_DB3, ("start mscp(%p)\n", mscp));
+ mscp->xs = xs;
+
+ /*
+ * Put all the arguments for the xfer in the mscp
+ */
+ if (flags & SCSI_RESET) {
+ mscp->opcode = 0x04;
+ mscp->ca = 0x01;
+ } else {
+ mscp->opcode = 0x02;
+ mscp->ca = 0x01;
+ }
+ if (flags & SCSI_DATA_IN) {
+ mscp->xdir = 0x01;
+ }
+ if (flags & SCSI_DATA_OUT) {
+ mscp->xdir = 0x02;
+ }
+#ifdef GOTTABEJOKING
+ if (xs->sc_link->lun != 0) {
+ xs->error = XS_DRIVER_STUFFUP;
+ uha_free_mscp(uha, mscp, flags);
+ return (HAD_ERROR);
+ }
+#endif
+ mscp->dcn = 0x00;
+ mscp->chan = 0x00;
+ mscp->target = xs->sc_link->target;
+ mscp->lun = xs->sc_link->lun;
+ mscp->link.addr[0] = 0x00;
+ mscp->link.addr[1] = 0x00;
+ mscp->link.addr[2] = 0x00;
+ mscp->link.addr[3] = 0x00;
+ mscp->link_id = 0x00;
+ mscp->cdblen = xs->cmdlen;
+ scratch = KVTOPHYS(&(mscp->mscp_sense));
+ mscp->sense.addr[0] = (scratch & 0xff);
+ mscp->sense.addr[1] = ((scratch >> 8) & 0xff);
+ mscp->sense.addr[2] = ((scratch >> 16) & 0xff);
+ mscp->sense.addr[3] = ((scratch >> 24) & 0xff);
+ mscp->senselen = sizeof(mscp->mscp_sense);
+ mscp->ha_status = 0x00;
+ mscp->targ_status = 0x00;
+
+ if (xs->datalen) { /* should use S/G only if not zero length */
+ scratch = KVTOPHYS(mscp->uha_dma);
+ mscp->data.addr[0] = (scratch & 0xff);
+ mscp->data.addr[1] = ((scratch >> 8) & 0xff);
+ mscp->data.addr[2] = ((scratch >> 16) & 0xff);
+ mscp->data.addr[3] = ((scratch >> 24) & 0xff);
+ sg = mscp->uha_dma;
+ seg = 0;
+ mscp->sgth = 0x01;
+
+#ifdef TFS
+ if (flags & SCSI_DATA_UIO) {
+ iovp = ((struct uio *) xs->data)->uio_iov;
+ datalen = ((struct uio *) xs->data)->uio_iovcnt;
+ xs->datalen = 0;
+ while ((datalen) && (seg < UHA_NSEG)) {
+ scratch = (unsigned long) iovp->iov_base;
+ sg->addr.addr[0] = (scratch & 0xff);
+ sg->addr.addr[1] = ((scratch >> 8) & 0xff);
+ sg->addr.addr[2] = ((scratch >> 16) & 0xff);
+ sg->addr.addr[3] = ((scratch >> 24) & 0xff);
+ xs->datalen += *(unsigned long *) sg->len.len = iovp->iov_len;
+ SC_DEBUGN(xs->sc_link, SDEV_DB4, ("(0x%x@0x%x)",
+ iovp->iov_len,
+ iovp->iov_base));
+ sg++;
+ iovp++;
+ seg++;
+ datalen--;
+ }
+ } else
+#endif /*TFS */
+ {
+ /*
+ * Set up the scatter gather block
+ */
+
+ SC_DEBUG(xs->sc_link, SDEV_DB4,
+ ("%ld @%p:- ", xs->datalen, xs->data));
+ datalen = xs->datalen;
+ thiskv = (int) xs->data;
+ thisphys = KVTOPHYS(thiskv);
+ templen = 0;
+
+ while ((datalen) && (seg < UHA_NSEG)) {
+ bytes_this_seg = 0;
+
+ /* put in the base address */
+ sg->addr.addr[0] = (thisphys & 0xff);
+ sg->addr.addr[1] = ((thisphys >> 8) & 0xff);
+ sg->addr.addr[2] = ((thisphys >> 16) & 0xff);
+ sg->addr.addr[3] = ((thisphys >> 24) & 0xff);
+
+ SC_DEBUGN(xs->sc_link, SDEV_DB4, ("0x%lx",
+ thisphys));
+
+ /* do it at least once */
+ nextphys = thisphys;
+ while ((datalen) && (thisphys == nextphys))
+ /*
+ * This page is contiguous (physically) with
+ * the the last, just extend the length
+ */
+ {
+ /* how far to the end of the page */
+ nextphys = (thisphys & (~(PAGESIZ - 1)))
+ + PAGESIZ;
+ bytes_this_page = nextphys - thisphys;
+ /**** or the data ****/
+ bytes_this_page = min(bytes_this_page
+ ,datalen);
+ bytes_this_seg += bytes_this_page;
+ datalen -= bytes_this_page;
+
+ /* get more ready for the next page */
+ thiskv = (thiskv & (~(PAGESIZ - 1)))
+ + PAGESIZ;
+ if (datalen)
+ thisphys = KVTOPHYS(thiskv);
+ }
+ /*
+ * next page isn't contiguous, finish the seg
+ */
+ SC_DEBUGN(xs->sc_link, SDEV_DB4,
+ ("(0x%x)", bytes_this_seg));
+ sg->len.len[0] = (bytes_this_seg & 0xff);
+ sg->len.len[1] = ((bytes_this_seg >> 8) & 0xff);
+ sg->len.len[2] = ((bytes_this_seg >> 16) & 0xff);
+ sg->len.len[3] = ((bytes_this_seg >> 24) & 0xff);
+ templen += bytes_this_seg;
+ sg++;
+ seg++;
+ }
+ }
+
+ /* end of iov/kv decision */
+ mscp->datalen.len[0] = (templen & 0xff);
+ mscp->datalen.len[1] = ((templen >> 8) & 0xff);
+ mscp->datalen.len[2] = ((templen >> 16) & 0xff);
+ mscp->datalen.len[3] = ((templen >> 24) & 0xff);
+ mscp->sg_num = seg;
+
+ SC_DEBUGN(xs->sc_link, SDEV_DB4, ("\n"));
+ if (datalen) { /* there's still data, must have run out of segs! */
+ printf("uha%d: uha_scsi_cmd, more than %d DMA segs\n",
+ uha->unit, UHA_NSEG);
+ xs->error = XS_DRIVER_STUFFUP;
+ uha_free_mscp(uha, mscp, flags);
+ return (HAD_ERROR);
+ }
+ } else { /* No data xfer, use non S/G values */
+ mscp->data.addr[0] = 0x00;
+ mscp->data.addr[1] = 0x00;
+ mscp->data.addr[2] = 0x00;
+ mscp->data.addr[3] = 0x00;
+ mscp->datalen.len[0] = 0x00;
+ mscp->datalen.len[1] = 0x00;
+ mscp->datalen.len[2] = 0x00;
+ mscp->datalen.len[3] = 0x00;
+ mscp->xdir = 0x03;
+ mscp->sgth = 0x00;
+ mscp->sg_num = 0x00;
+ }
+
+ /*
+ * Put the scsi command in the mscp and start it
+ */
+ bcopy(xs->cmd, mscp->cdb, xs->cmdlen);
+
+ /*
+ * Usually return SUCCESSFULLY QUEUED
+ */
+ if (!(flags & SCSI_NOMASK)) {
+ s = splbio();
+ uha_send_mbox(uha, mscp);
+ xs->timeout_ch = timeout(uha_timeout, (caddr_t)mscp,
+ (xs->timeout * hz) / 1000);
+ splx(s);
+ SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_sent\n"));
+ return (SUCCESSFULLY_QUEUED);
+ }
+
+ /*
+ * If we can't use interrupts, poll on completion
+ */
+ uha_send_mbox(uha, mscp);
+ SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_wait\n"));
+ do {
+ if (uha_poll(uha, xs->timeout)) {
+ if (!(xs->flags & SCSI_SILENT))
+ printf("uha%d: cmd fail\n", uha->unit);
+ if (!(uha_abort(uha, mscp))) {
+ printf("uha%d: abort failed in wait\n",
+ uha->unit);
+ uha_free_mscp(uha, mscp, flags);
+ }
+ xs->error = XS_DRIVER_STUFFUP;
+ return (HAD_ERROR);
+ }
+ }
+ while (!(xs->flags & ITSDONE)); /* something (?) else finished */
+ if (xs->error) {
+ return (HAD_ERROR);
+ }
+ return (COMPLETE);
+}
+
+static void
+uha_timeout(arg1)
+ void *arg1;
+{
+ struct mscp *mscp = (struct mscp *)arg1;
+ struct uha_data *uha;
+ int s = splbio();
+
+ uha = (struct uha_data *)mscp->xs->sc_link->adapter_softc;
+ printf("uha%d:%d:%d (%s%d) timed out ", uha->unit
+ ,mscp->xs->sc_link->target
+ ,mscp->xs->sc_link->lun
+ ,mscp->xs->sc_link->device->name
+ ,mscp->xs->sc_link->dev_unit);
+
+#ifdef UHADEBUG
+ uha_print_active_mscp(uha);
+#endif /*UHADEBUG */
+
+ if ((uha_abort(uha, mscp) != 1) || (mscp->flags = MSCP_ABORTED)) {
+ printf("AGAIN");
+ mscp->xs->retries = 0; /* I MEAN IT ! */
+ uha_done(uha, mscp);
+ } else { /* abort the operation that has timed out */
+ printf("\n");
+ mscp->xs->timeout_ch = timeout(uha_timeout, (caddr_t)mscp,
+ 2 * hz);
+ mscp->flags = MSCP_ABORTED;
+ }
+ splx(s);
+}
+
+#ifdef UHADEBUG
+void
+uha_print_mscp(mscp)
+ struct mscp *mscp;
+{
+ printf("mscp:%x op:%x cmdlen:%d senlen:%d\n"
+ ,mscp
+ ,mscp->opcode
+ ,mscp->cdblen
+ ,mscp->senselen);
+ printf(" sg:%d sgnum:%x datlen:%d hstat:%x tstat:%x flags:%x\n"
+ ,mscp->sgth
+ ,mscp->sg_num
+ ,mscp->datalen
+ ,mscp->ha_status
+ ,mscp->targ_status
+ ,mscp->flags);
+ show_scsi_cmd(mscp->xs);
+}
+
+void
+uha_print_active_mscp(struct uha_data *uha)
+{
+ struct mscp *mscp;
+ int i = 0;
+
+ while (i < MSCP_HASH_SIZE) {
+ mscp = uha->mscphash[i];
+ while (mscp) {
+ if (mscp->flags != MSCP_FREE) {
+ uha_print_mscp(mscp);
+ }
+ mscp = mscp->nexthash;
+ }
+ i++;
+ }
+}
+#endif /*UHADEBUG */
+#endif /*KERNEL */
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-11 14:33:36 +0000