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Fix for DELL PERC firmware. Driver was hanging

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during load time; this attributed to the mailbox
busy byte not being set prior to issuing a
polling command.

Approved by: ps
MFC: 7 days
This commit is contained in:
Eric Moore 2003-01-09 21:02:28 +00:00
parent 38deb45fc3
commit d163d5b8c8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=109031
1 changed files with 16 additions and 2 deletions
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18
sys/dev/amr/amr.c
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@ -977,7 +977,7 @@ amr_quartz_poll_command(struct amr_command *ac)
{
struct amr_softc *sc = ac->ac_sc;
int s;
int error;
int error,count;
debug_called(2);
@ -986,8 +986,16 @@ amr_quartz_poll_command(struct amr_command *ac)
s = splbio();
count=0;
while (sc->amr_busyslots){
tsleep(sc, PRIBIO | PCATCH, "amrpoll", hz);
if(count++>10) {
break;
}
}
if(sc->amr_busyslots) {
device_printf(sc->amr_dev, "adapter is busy");
device_printf(sc->amr_dev, "adapter is busy\n");
splx(s);
amr_unmapcmd(ac);
ac->ac_status=0;
@ -1002,6 +1010,7 @@ amr_quartz_poll_command(struct amr_command *ac)
sc->amr_mailbox->mb_status = 0xFF;
sc->amr_mailbox->mb_poll = 0;
sc->amr_mailbox->mb_ack = 0;
sc->amr_mailbox->mb_busy = 1;
AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
@ -1015,6 +1024,7 @@ amr_quartz_poll_command(struct amr_command *ac)
/* acknowledge that we have the commands */
AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
splx(s);
@ -1403,6 +1413,10 @@ amr_complete(void *context, int pending)
} else if (ac->ac_flags & AMR_CMD_SLEEP) {
wakeup(ac);
}
if(!sc->amr_busyslots) {
wakeup(sc);
}
}
}