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Diffstat (limited to 'sys/dev/i2o/ioprbs.c')
-rw-r--r--sys/dev/i2o/ioprbs.c214
1 files changed, 62 insertions, 152 deletions
diff --git a/sys/dev/i2o/ioprbs.c b/sys/dev/i2o/ioprbs.c
index e81a96ac748..e8e9abab62f 100644
--- a/sys/dev/i2o/ioprbs.c
+++ b/sys/dev/i2o/ioprbs.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ioprbs.c,v 1.29 2011/04/25 12:40:52 miod Exp $ */
+/* $OpenBSD: ioprbs.c,v 1.30 2011/04/27 18:54:19 matthew Exp $ */
/*
* Copyright (c) 2001 Niklas Hallqvist
@@ -95,8 +95,6 @@ void ioprbs_adjqparam(struct device *, int);
void ioprbs_attach(struct device *, struct device *, void *);
void ioprbs_copy_internal_data(struct scsi_xfer *, u_int8_t *,
size_t);
-struct scsi_xfer *ioprbs_dequeue(struct ioprbs_softc *);
-void ioprbs_enqueue(struct ioprbs_softc *, struct scsi_xfer *, int);
void ioprbs_enqueue_ccb(struct ioprbs_softc *, struct ioprbs_ccb *);
int ioprbs_exec_ccb(struct ioprbs_ccb *);
void ioprbs_free_ccb(void *, void *);
@@ -185,7 +183,6 @@ ioprbs_attach(struct device *parent, struct device *self, void *aux)
TAILQ_INIT(&sc->sc_free_ccb);
TAILQ_INIT(&sc->sc_ccbq);
- LIST_INIT(&sc->sc_queue);
mtx_init(&sc->sc_ccb_mtx, IPL_BIO);
scsi_iopool_init(&sc->sc_iopool, sc, ioprbs_get_ccb, ioprbs_free_ccb);
@@ -396,133 +393,87 @@ ioprbs_unconfig(struct ioprbs_softc *sc, int evreg)
}
void
-ioprbs_scsi_cmd(xs)
- struct scsi_xfer *xs;
+ioprbs_scsi_cmd(struct scsi_xfer *xs)
{
struct scsi_link *link = xs->sc_link;
struct ioprbs_softc *sc = link->adapter_softc;
struct ioprbs_ccb *ccb = xs->io;
- u_int32_t blockno, blockcnt;
- struct scsi_rw *rw;
- struct scsi_rw_big *rwb;
+ u_int64_t blockno;
+ u_int32_t blockcnt;
int s;
- s = splbio();
-
- /* Don't double enqueue if we came from ioprbs_chain. */
- if (xs != LIST_FIRST(&sc->sc_queue))
- ioprbs_enqueue(sc, xs, 0);
-
- while ((xs = ioprbs_dequeue(sc))) {
- xs->error = XS_NOERROR;
-
- ccb = NULL;
+ xs->error = XS_NOERROR;
- switch (xs->cmd->opcode) {
- case TEST_UNIT_READY:
- case REQUEST_SENSE:
- case INQUIRY:
- case MODE_SENSE:
- case START_STOP:
- case READ_CAPACITY:
+ switch (xs->cmd->opcode) {
+ case TEST_UNIT_READY:
+ case REQUEST_SENSE:
+ case INQUIRY:
+ case MODE_SENSE:
+ case START_STOP:
+ case READ_CAPACITY:
#if 0
- case VERIFY:
+ case VERIFY:
#endif
- ioprbs_internal_cache_cmd(xs);
- scsi_done(xs);
- goto ready;
+ ioprbs_internal_cache_cmd(xs);
+ scsi_done(xs);
+ return;
- case PREVENT_ALLOW:
- DPRINTF(("PREVENT/ALLOW "));
- /* XXX Not yet implemented */
- xs->error = XS_NOERROR;
- scsi_done(xs);
- goto ready;
+ case PREVENT_ALLOW:
+ DPRINTF(("PREVENT/ALLOW "));
+ /* XXX Not yet implemented */
+ xs->error = XS_NOERROR;
+ scsi_done(xs);
+ return;
- case SYNCHRONIZE_CACHE:
- DPRINTF(("SYNCHRONIZE_CACHE "));
- /* XXX Not yet implemented */
- xs->error = XS_NOERROR;
- scsi_done(xs);
- goto ready;
+ case SYNCHRONIZE_CACHE:
+ DPRINTF(("SYNCHRONIZE_CACHE "));
+ /* XXX Not yet implemented */
+ xs->error = XS_NOERROR;
+ scsi_done(xs);
+ return;
+
+ default:
+ DPRINTF(("unknown opc %d ", xs->cmd->opcode));
+ /* XXX Not yet implemented */
+ xs->error = XS_DRIVER_STUFFUP;
+ scsi_done(xs);
+ return;
- default:
- DPRINTF(("unknown opc %d ", xs->cmd->opcode));
- /* XXX Not yet implemented */
+ case READ_COMMAND:
+ case READ_BIG:
+ case WRITE_COMMAND:
+ case WRITE_BIG:
+ DPRINTF(("rw opc %d ", xs->cmd->opcode));
+
+ scsi_cmd_rw_decode(xs->cmd, &blockno, &blockcnt);
+ if (blockno >= sc->sc_secperunit ||
+ blockcnt > sc->sc_secperunit - blockno) {
+ printf("%s: out of bounds %llu-%u >= %u\n",
+ sc->sc_dv.dv_xname, blockno, blockcnt,
+ sc->sc_secperunit);
+ /*
+ * XXX Should be XS_SENSE but that
+ * would require setting up a faked
+ * sense too.
+ */
xs->error = XS_DRIVER_STUFFUP;
scsi_done(xs);
- goto ready;
-
- case READ_COMMAND:
- case READ_BIG:
- case WRITE_COMMAND:
- case WRITE_BIG:
- DPRINTF(("rw opc %d ", xs->cmd->opcode));
-
- if (xs->cmd->opcode != SYNCHRONIZE_CACHE) {
- /* A read or write operation. */
- if (xs->cmdlen == 6) {
- rw = (struct scsi_rw *)xs->cmd;
- blockno = _3btol(rw->addr) &
- (SRW_TOPADDR << 16 | 0xffff);
- blockcnt =
- rw->length ? rw->length : 0x100;
- } else {
- rwb = (struct scsi_rw_big *)xs->cmd;
- blockno = _4btol(rwb->addr);
- blockcnt = _2btol(rwb->length);
- }
- if (blockno >= sc->sc_secperunit ||
- blockno + blockcnt > sc->sc_secperunit) {
- printf(
- "%s: out of bounds %u-%u >= %u\n",
- sc->sc_dv.dv_xname, blockno,
- blockcnt, sc->sc_secperunit);
- /*
- * XXX Should be XS_SENSE but that
- * would require setting up a faked
- * sense too.
- */
- xs->error = XS_DRIVER_STUFFUP;
- scsi_done(xs);
- goto ready;
- }
- }
-
- ccb->ic_blockno = blockno;
- ccb->ic_blockcnt = blockcnt;
- ccb->ic_xs = xs;
- ccb->ic_timeout = xs->timeout;
+ return;
+ }
- ioprbs_enqueue_ccb(sc, ccb);
+ ccb->ic_blockno = blockno;
+ ccb->ic_blockcnt = blockcnt;
+ ccb->ic_xs = xs;
+ ccb->ic_timeout = xs->timeout;
- /* XXX what if enqueue did not start a transfer? */
- if (xs->flags & SCSI_POLL) {
-#if 0
- if (!ioprbs_wait(sc, ccb, ccb->ic_timeout)) {
- splx(s);
- printf("%s: command timed out\n",
- sc->sc_dv.dv_xname);
- xs->error = XS_NO_CCB;
- scsi_done(xs);
- splx(s);
- return;
- }
- scsi_done(xs);
-#endif
- }
- }
+ s = splbio();
+ ioprbs_enqueue_ccb(sc, ccb);
+ splx(s);
- ready:
- /*
- * Don't process the queue if we are polling.
- */
if (xs->flags & SCSI_POLL) {
- break;
+ /* XXX Should actually poll... */
}
}
-
- splx(s);
}
void
@@ -611,47 +562,6 @@ ioprbs_adjqparam(struct device *dv, int mpi)
#endif
}
-/*
- * Insert a command into the driver queue, either at the front or at the tail.
- * It's ok to overload the freelist link as these structures are never on
- * the freelist at this time.
- */
-void
-ioprbs_enqueue(sc, xs, infront)
- struct ioprbs_softc *sc;
- struct scsi_xfer *xs;
- int infront;
-{
- if (infront || LIST_FIRST(&sc->sc_queue) == NULL) {
- if (LIST_FIRST(&sc->sc_queue) == NULL)
- sc->sc_queuelast = xs;
- LIST_INSERT_HEAD(&sc->sc_queue, xs, free_list);
- return;
- }
- LIST_INSERT_AFTER(sc->sc_queuelast, xs, free_list);
- sc->sc_queuelast = xs;
-}
-
-/*
- * Pull a command off the front of the driver queue.
- */
-struct scsi_xfer *
-ioprbs_dequeue(sc)
- struct ioprbs_softc *sc;
-{
- struct scsi_xfer *xs;
-
- xs = LIST_FIRST(&sc->sc_queue);
- if (xs == NULL)
- return (NULL);
- LIST_REMOVE(xs, free_list);
-
- if (LIST_FIRST(&sc->sc_queue) == NULL)
- sc->sc_queuelast = NULL;
-
- return (xs);
-}
-
void
ioprbs_copy_internal_data(xs, data, size)
struct scsi_xfer *xs;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 19:38:24 +0000