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authormjacob <mjacob@NetBSD.org>1998-07-15 19:44:04 +0000
committermjacob <mjacob@NetBSD.org>1998-07-15 19:44:04 +0000
commitd96bd50c0708d4f98e5d1f4ea4e7c09f711e1b60 (patch)
tree5671df3322c0e8a8de3628116f5221d745356e92 /sys/dev/ic/isp_netbsd.c
parent9726a436921b0c22b2fe50e6d56ba7274f9d5637 (diff)
NetBSD OS specific routines and definitions.
Diffstat (limited to 'sys/dev/ic/isp_netbsd.c')
-rw-r--r--sys/dev/ic/isp_netbsd.c189
1 files changed, 189 insertions, 0 deletions
diff --git a/sys/dev/ic/isp_netbsd.c b/sys/dev/ic/isp_netbsd.c
new file mode 100644
index 00000000000..3697b7ca3e7
--- /dev/null
+++ b/sys/dev/ic/isp_netbsd.c
@@ -0,0 +1,189 @@
+/* $NetBSD: isp_netbsd.c,v 1.1 1998/07/15 19:44:04 mjacob Exp $ */
+/* $Id: isp_netbsd.c,v 1.1 1998/07/15 19:44:04 mjacob Exp $ */
+/*
+ * Platform (NetBSD) dependent common attachment code for Qlogic adapters.
+ *
+ *---------------------------------------
+ * Copyright (c) 1997, 1998 by Matthew Jacob
+ * NASA/Ames Research Center
+ * All rights reserved.
+ *---------------------------------------
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice immediately at the beginning of the file, without modification,
+ * this list of conditions, and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The author may be reached via electronic communications at
+ *
+ * mjacob@nas.nasa.gov
+ * mjacob@feral.com
+ *
+ * or, via United States Postal Address
+ *
+ * Matthew Jacob
+ * Feral Software
+ * 2339 3rd Street
+ * Suite 24
+ * San Francisco, CA, 94107
+ */
+/*
+ * $Log: isp_netbsd.c,v $
+ * Revision 1.1 1998/07/15 19:44:04 mjacob
+ * NetBSD OS specific routines and definitions.
+ *
+ * Revision 1.5 1998/07/15 19:35:35 mjacob
+ * checkpoint
+ *
+ * Revision 1.4 1998/06/12 19:48:24 mjacob
+ * checkpoint
+ *
+ * Revision 1.3 1998/04/15 17:40:25 mjacob
+ * oops
+ *
+ * Revision 1.2 1998/04/14 17:31:49 mjacob
+ * fix headers
+ *
+ */
+
+#include <dev/ic/isp_netbsd.h>
+
+static void ispminphys __P((struct buf *));
+static int32_t ispcmd __P((ISP_SCSI_XFER_T *));
+
+static struct scsipi_adapter isp_switch = {
+ ispcmd, ispminphys, 0, 0
+};
+
+static struct scsipi_device isp_dev = { NULL, NULL, NULL, NULL };
+static int isp_poll __P((struct ispsoftc *, ISP_SCSI_XFER_T *, int));
+
+/*
+ * Complete attachment of hardware, include subdevices.
+ */
+void
+isp_attach(isp)
+ struct ispsoftc *isp;
+{
+ isp->isp_state = ISP_RUNSTATE;
+ isp->isp_osinfo._link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE;
+ isp->isp_osinfo._link.adapter_softc = isp;
+ isp->isp_osinfo._link.device = &isp_dev;
+ isp->isp_osinfo._link.adapter = &isp_switch;
+
+ if (isp->isp_type & ISP_HA_FC) {
+ isp->isp_osinfo._link.scsipi_scsi.max_target = MAX_FC_TARG-1;
+ isp->isp_osinfo._link.openings =
+ RQUEST_QUEUE_LEN / (MAX_FC_TARG-1);
+ isp->isp_osinfo._link.scsipi_scsi.adapter_target = 0xff;
+ } else {
+ isp->isp_osinfo._link.openings =
+ RQUEST_QUEUE_LEN / (MAX_TARGETS-1);
+ isp->isp_osinfo._link.scsipi_scsi.max_target = MAX_TARGETS-1;
+ isp->isp_osinfo._link.scsipi_scsi.adapter_target =
+ ((sdparam *)isp->isp_param)->isp_initiator_id;
+ }
+ if (isp->isp_osinfo._link.openings < 2)
+ isp->isp_osinfo._link.openings = 2;
+ isp->isp_osinfo._link.type = BUS_SCSI;
+ config_found((void *)isp, &isp->isp_osinfo._link, scsiprint);
+}
+
+/*
+ * minphys our xfers
+ *
+ * Unfortunately, the buffer pointer describes the target device- not the
+ * adapter device, so we can't use the pointer to find out what kind of
+ * adapter we are and adjust accordingly.
+ */
+
+static void
+ispminphys(bp)
+ struct buf *bp;
+{
+ /*
+ * XX: Only the 1020 has a 24 bit limit.
+ */
+ if (bp->b_bcount >= (1 << 24)) {
+ bp->b_bcount = (1 << 24);
+ }
+ minphys(bp);
+}
+
+static int
+ispcmd(xs)
+ ISP_SCSI_XFER_T *xs;
+{
+ struct ispsoftc *isp;
+ int r;
+ ISP_LOCKVAL_DECL;
+
+ isp = XS_ISP(xs);
+ ISP_LOCK(isp);
+ r = ispscsicmd(xs);
+ if (r != CMD_QUEUED || (xs->flags & SCSI_POLL) == 0) {
+ ISP_UNLOCK(isp);
+ return (r);
+ }
+
+ /*
+ * If we can't use interrupts, poll on completion.
+ */
+ if (isp_poll(isp, xs, XS_TIME(xs))) {
+ /*
+ * If no other error occurred but we didn't finish,
+ * something bad happened.
+ */
+ if (XS_IS_CMD_DONE(xs) == 0) {
+ isp->isp_nactive--;
+ if (isp->isp_nactive < 0)
+ isp->isp_nactive = 0;
+ if (XS_NOERR(xs)) {
+ isp_lostcmd(isp, xs);
+ XS_SETERR(xs, HBA_BOTCH);
+ }
+ }
+ }
+ ISP_UNLOCK(isp);
+ return (CMD_COMPLETE);
+}
+
+static int
+isp_poll(isp, xs, mswait)
+ struct ispsoftc *isp;
+ ISP_SCSI_XFER_T *xs;
+ int mswait;
+{
+
+ while (mswait) {
+ /* Try the interrupt handling routine */
+ (void)isp_intr((void *)isp);
+
+ /* See if the xs is now done */
+ if (XS_IS_CMD_DONE(xs)) {
+ return (0);
+ }
+ SYS_DELAY(1000); /* wait one millisecond */
+ mswait--;
+ }
+ return (1);
+}