new format of error prints; no more TM UBA late messages

[unix-history] / usr / src / sys / vax / uba / tm.c

diff --git a/usr/src/sys/vax/uba/tm.c b/usr/src/sys/vax/uba/tm.c
index 9311997..cd5e51a 100644 (file)
--- a/usr/src/sys/vax/uba/tm.c
+++ b/usr/src/sys/vax/uba/tm.c
@@ -1,12 +1,15 @@
-/*     tm.c    4.17    %G%     */
+/*     tm.c    4.22    %G%     */

 
 

-#include "tm.h"
+#include "te.h"

 #if NTM > 0
 int    tmgapsdcnt;             /* DEBUG */
 /*
  * TM11/TE10 tape driver
  *
 #if NTM > 0
 int    tmgapsdcnt;             /* DEBUG */
 /*
  * TM11/TE10 tape driver
  *

- * THIS DRIVER HAS NOT BEEN TESTED WITH MORE THAN ONE TRANSPORT.
+ * Todo:
+ *     Test driver with more than one slave
+ *     Test reset code
+ *     Do rewinds without hanging in driver

  */
 #define        DELAY(N)                { register int d = N; while (--d > 0); }
 #include "../h/param.h"
  */
 #define        DELAY(N)                { register int d = N; while (--d > 0); }
 #include "../h/param.h"


@@ -58,7 +61,9 @@ struct        tm_softc {
        u_short sc_erreg;       /* copy of last erreg */
        u_short sc_dsreg;       /* copy of last dsreg */
        short   sc_resid;       /* copy of last bc */
        u_short sc_erreg;       /* copy of last erreg */
        u_short sc_dsreg;       /* copy of last dsreg */
        short   sc_resid;       /* copy of last bc */

+#ifdef notdef

        short   sc_lastcmd;     /* last command to handle direction changes */
        short   sc_lastcmd;     /* last command to handle direction changes */

+#endif

 } tm_softc[NTM];
 
 /*
 } tm_softc[NTM];
 
 /*


@@ -154,13 +159,8 @@ tmopen(dev, flag)
                return;
        }
        tmcommand(dev, TM_SENSE, 1);
                return;
        }
        tmcommand(dev, TM_SENSE, 1);

-       if ((sc->sc_erreg&(TM_SELR|TM_TUR)) != (TM_SELR|TM_TUR)) {
-               uprintf("tape not online\n");
-               u.u_error = EIO;
-               return;
-       }
-       if ((flag&(FREAD|FWRITE)) == FWRITE && sc->sc_erreg&TM_WRL) {
-               uprintf("tape write protected\n");
+       if ((sc->sc_erreg&(TM_SELR|TM_TUR)) != (TM_SELR|TM_TUR) ||
+           (flag&(FREAD|FWRITE)) == FWRITE && sc->sc_erreg&TM_WRL) {

                u.u_error = EIO;
                return;
        }
                u.u_error = EIO;
                return;
        }


@@ -168,8 +168,6 @@ tmopen(dev, flag)
        sc->sc_blkno = (daddr_t)0;
        sc->sc_nxrec = INF;
        sc->sc_lastiow = 0;
        sc->sc_blkno = (daddr_t)0;
        sc->sc_nxrec = INF;
        sc->sc_lastiow = 0;

-       sc->sc_openf = 1;
-       return;

 }
 
 /*
 }
 
 /*


@@ -370,12 +368,12 @@ loop:
                        cmd |= TM_RCOM;
                um->um_tab.b_active = SIO;
                um->um_cmd = cmd;
                        cmd |= TM_RCOM;
                um->um_tab.b_active = SIO;
                um->um_cmd = cmd;

-/*
+#ifdef notdef

                if (tmreverseop(sc->sc_lastcmd))
                        while (addr->tmer & TM_SDWN)
                                tmgapsdcnt++;
                if (tmreverseop(sc->sc_lastcmd))
                        while (addr->tmer & TM_SDWN)
                                tmgapsdcnt++;

-*/

                sc->sc_lastcmd = TM_RCOM;               /* will serve */
                sc->sc_lastcmd = TM_RCOM;               /* will serve */

+#endif

                ubago(ui);
                return;
        }
                ubago(ui);
                return;
        }


@@ -392,12 +390,12 @@ loop:
                addr->tmbc = dbtofsb(bp->b_blkno) - blkno;
        }
 dobpcmd:
                addr->tmbc = dbtofsb(bp->b_blkno) - blkno;
        }
 dobpcmd:

-/*
+#ifdef notdef

        if (tmreverseop(sc->sc_lastcmd) != tmreverseop(bp->b_command))
                while (addr->tmer & TM_SDWN)
                        tmgapsdcnt++;
        if (tmreverseop(sc->sc_lastcmd) != tmreverseop(bp->b_command))
                while (addr->tmer & TM_SDWN)
                        tmgapsdcnt++;

-*/

        sc->sc_lastcmd = bp->b_command;
        sc->sc_lastcmd = bp->b_command;

+#endif

        addr->tmcs = (cmd | bp->b_command);
        return;
 
        addr->tmcs = (cmd | bp->b_command);
        return;
 


@@ -500,10 +498,6 @@ tmintr(tm11)
                 */
                if ((addr->tmer&TM_HARD)==0 && state==SIO) {
                        if (++um->um_tab.b_errcnt < 7) {
                 */
                if ((addr->tmer&TM_HARD)==0 && state==SIO) {
                        if (++um->um_tab.b_errcnt < 7) {

-/* SHOULD CHECK THAT RECOVERY WORKS IN THIS CASE */
-/* AND THEN ONLY PRINT IF errcnt==7 */
-                               if((addr->tmer&TM_SOFT) == TM_NXM)
-                                       printf("TM UBA late error\n");

                                sc->sc_blkno++;
                                ubadone(um);
                                goto opcont;
                                sc->sc_blkno++;
                                ubadone(um);
                                goto opcont;


@@ -518,7 +512,8 @@ tmintr(tm11)
                /*
                 * Couldn't recover error
                 */
                /*
                 * Couldn't recover error
                 */

-               deverror(bp, sc->sc_erreg, sc->sc_dsreg);
+               printf("te%d: hard error bn%d er=%b\n", minor(bp->b_dev)&03,
+                   bp->b_blkno, sc->sc_erreg, TMEREG_BITS);

                bp->b_flags |= B_ERROR;
                goto opdone;
        }
                bp->b_flags |= B_ERROR;
                goto opdone;
        }


@@ -653,7 +648,6 @@ tmphys(dev)
 tmreset(uban)
        int uban;
 {
 tmreset(uban)
        int uban;
 {

-       int printed = 0;

        register struct uba_minfo *um;
        register tm11, unit;
        register struct uba_dinfo *ui;
        register struct uba_minfo *um;
        register tm11, unit;
        register struct uba_dinfo *ui;


@@ -663,11 +657,7 @@ tmreset(uban)
                if ((um = tmminfo[tm11]) == 0 || um->um_alive == 0 ||
                   um->um_ubanum != uban)
                        continue;
                if ((um = tmminfo[tm11]) == 0 || um->um_alive == 0 ||
                   um->um_ubanum != uban)
                        continue;

-               if (printed == 0) {
-                       printf(" tm");
-                       DELAY(2000000);         /* time to self test */
-                       printed = 1;
-               }
+               printf(" tm%d", tm11);

                um->um_tab.b_active = 0;
                um->um_tab.b_actf = um->um_tab.b_actl = 0;
                if (um->um_ubinfo) {
                um->um_tab.b_active = 0;
                um->um_tab.b_actf = um->um_tab.b_actl = 0;
                if (um->um_ubinfo) {


@@ -778,10 +768,8 @@ tmdump()
        start = 0;
        num = maxfree;
 #define        phys(a,b)       ((b)((int)(a)&0x7fffffff))
        start = 0;
        num = maxfree;
 #define        phys(a,b)       ((b)((int)(a)&0x7fffffff))

-       if (tmdinfo[0] == 0) {
-               printf("dna\n");
-               return (-1);
-       }
+       if (tmdinfo[0] == 0)
+               return (ENXIO);

        ui = phys(tmdinfo[0], struct uba_dinfo *);
        up = phys(ui->ui_hd, struct uba_hd *)->uh_physuba;
 #if VAX780
        ui = phys(tmdinfo[0], struct uba_dinfo *);
        up = phys(ui->ui_hd, struct uba_hd *)->uh_physuba;
 #if VAX780


@@ -801,6 +789,8 @@ tmdump()
        tmeof(addr);
        tmeof(addr);
        tmwait(addr);
        tmeof(addr);
        tmeof(addr);
        tmwait(addr);

+       if (addr->tmcs&TM_ERR)
+               return (EIO);

        addr->tmcs = TM_REW | TM_GO;
        tmwait(addr);
        return (0);
        addr->tmcs = TM_REW | TM_GO;
        tmwait(addr);
        return (0);