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Added a new nexus flag SFAS_NF_RETRY_SELECT. This flag is used to indicate

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that a unit select did not complete and needs to be retried. Selection will
be retried following a disconnection if this flag is set. The function
sfas_select_unit() will set/clear this flag depending on when a selection
completed or not.
This commit is contained in:
mark 1997-01-18 01:38:05 +00:00
parent d5260695b3
commit c5cc357f5d
2 changed files with 86 additions and 6 deletions
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87
sys/arch/arm32/podulebus/sfas.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sfas.c,v 1.8 1996/10/29 23:37:39 mark Exp $ */
/* $NetBSD: sfas.c,v 1.9 1997/01/18 01:38:07 mark Exp $ */
/*
* Copyright (c) 1995 Scott Stevens
@ -637,8 +637,11 @@ sfas_select_unit(dev, target)
*rp->sfas_command = cmd;
retcode = 1;
}
}
nexus->flags &= ~SFAS_NF_RETRY_SELECT;
} else
nexus->flags |= SFAS_NF_RETRY_SELECT;
} else
nexus->flags |= SFAS_NF_RETRY_SELECT;
splx(s);
return(retcode);
@ -1108,7 +1111,7 @@ sfas_midaction(dev, rp, nexus)
/* Select the first pre-initialized nexus we find. */
for(i=0; i<8; i++)
if (dev->sc_nexus[i].flags & SFAS_NF_SELECT_ME)
if (dev->sc_nexus[i].flags & (SFAS_NF_SELECT_ME | SFAS_NF_RETRY_SELECT))
if (sfas_select_unit(dev, i) == 2)
break;
@ -1619,3 +1622,79 @@ sfasicmd(dev, pendp)
nexus->flags &= ~SFAS_NF_SYNC_TESTED;
}
#ifdef SFAS_DEBUG
void
dump_nexus(nexus)
struct nexus *nexus;
{
int loop;
printf("nexus=%08x\n", (u_int)nexus);
printf("scsi_fer=%08x\n", (u_int)nexus->xs);
printf("ID=%02x\n", nexus->ID);
printf("clen=%02x\n", nexus->clen);
printf("cbuf=");
for (loop = 0; loop< 14; ++loop)
printf(" %02x\n", nexus->cbuf[loop]);
printf("\n");
printf("dma:\n");
for (loop = 0; loop < MAXCHAIN; ++loop)
printf("dma_chain: %08x %04x %04x\n", nexus->dma[loop].ptr,
nexus->dma[loop].len, nexus->dma[loop].flg);
printf("\n");
printf("max_link=%d\n", nexus->max_link);
printf("cur_link=%d\n", nexus->cur_link);
printf("buf=%08x\n", (u_int)nexus->buf);
printf("len=%08x\n", nexus->len);
printf("dma_buf=%08x\n", (u_int)nexus->dma_buf);
printf("dma_len=%08x\n", nexus->dma_len);
printf("dma_blk_ptr=%08x\n", (u_int)nexus->dma_blk_ptr);
printf("dma_blk_len=%08x\n", nexus->dma_blk_len);
printf("dma_blk_flag=%08x\n", nexus->dma_blk_flg);
printf("state=%02x\n", nexus->state);
printf("flags=%04x\n", nexus->flags);
printf("period=%d\n", nexus->period);
printf("offset=%d\n", nexus->offset);
printf("syncper=%d\n", nexus->syncper);
printf("syncoff=%d\n", nexus->syncoff);
printf("config3=%02x\n", nexus->config3);
printf("lun_unit=%d\n", nexus->lun_unit);
printf("status=%02x\n", nexus->status);
printf("\n");
}
void
dump_nexii(sc)
struct sfas_softc *sc;
{
int loop;
for (loop = 0; loop < 8; ++loop) {
dump_nexus(&sc->sc_nexus[loop]);
}
}
void
dump_sfassoftc(sc)
struct sfas_softc *sc;
{
printf("sfassoftc @ 0x%08x\n", (u_int)sc);
printf("clock_freq = %d\n", sc->sc_clock_freq);
printf("timeout = %d\n", sc->sc_timeout);
printf("host_id = %d\n", sc->sc_host_id);
printf("config_flags = 0x%08x\n", sc->sc_config_flags);
printf("led_status = %d\n", sc->sc_led_status);
dump_nexii(sc);
printf("cur_nexus = 0x%08x\n", (u_int)sc->sc_cur_nexus);
printf("sel_nexus = 0x%08x\n", (u_int)sc->sc_sel_nexus);
printf("\n");
}
#endif /* SFAS_DEBUG */

5
sys/arch/arm32/podulebus/sfasvar.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: sfasvar.h,v 1.2 1996/05/06 00:09:28 mark Exp $ */
/* $NetBSD: sfasvar.h,v 1.3 1997/01/18 01:38:05 mark Exp $ */
/*
* Copyright (c) 1995 Daniel Widenfalk
@ -110,7 +110,6 @@ struct nexus {
u_char lun_unit; /* (Lun<<4) | Unit of nexus */
u_char status; /* Status byte from unit*/
};
/* SCSI nexus_states */
@ -150,6 +149,8 @@ struct nexus {
#define SFAS_NF_RESET 0x0100 /* Reset this nexus */
#define SFAS_NF_IMMEDIATE 0x0200 /* We are operating from sfasicmd */
#define SFAS_NF_RETRY_SELECT 0x1000 /* Selection needs retrying */
#define SFAS_NF_DEBUG 0x8000 /* As it says: DEBUG */
struct sfas_softc {