complete update of ISP driver- includes 2100 FC support

1 files changed, 438 insertions, 0 deletions

diff --git a/sys/dev/ic/isp_openbsd.c b/sys/dev/ic/isp_openbsd.c
new file mode 100644
index 00000000000..cf83909bccc
--- /dev/null
+++ b/sys/dev/ic/isp_openbsd.c
@@ -0,0 +1,438 @@
+/* $OpenBSD: isp_openbsd.c,v 1.1 1999/03/17 05:26:09 mjacob Exp $ */
+/* release_03_16_99 */
+/*
+ * Platform (OpenBSD) dependent common attachment code for Qlogic adapters.
+ *
+ *---------------------------------------
+ * Copyright (c) 1997, 1998, 1999 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
+ */
+
+#include <dev/ic/isp_openbsd.h>
+
+static void ispminphys __P((struct buf *));
+static int32_t ispcmd __P((ISP_SCSI_XFER_T *));
+
+static struct scsi_device isp_dev = { NULL, NULL, NULL, NULL };
+static int isp_poll __P((struct ispsoftc *, ISP_SCSI_XFER_T *, int));
+static void isp_watch __P((void *));
+
+struct cfdriver isp_cd = {
+	NULL, "isp", DV_DULL
+};
+
+
+#define	FC_OPENINGS	RQUEST_QUEUE_LEN / (MAX_FC_TARG-1)
+#define	PI_OPENINGS	RQUEST_QUEUE_LEN / (MAX_TARGETS-1)
+
+/*
+ * Complete attachment of hardware, include subdevices.
+ */
+void
+isp_attach(isp)
+	struct ispsoftc *isp;
+{
+	isp->isp_osinfo._adapter.scsi_cmd = ispcmd;
+	isp->isp_osinfo._adapter.scsi_minphys = ispminphys;
+
+	isp->isp_state = ISP_RUNSTATE;
+	/*
+	 * OpenBSD will lose on the 1240 support because you don't
+	 * get multiple SCSI busses per adapter instance.
+	 */
+#if	0
+	isp->isp_osinfo._link.channel = SCSI_CHANNEL_ONLY_ONE;
+#endif
+	isp->isp_osinfo._link.adapter_softc = isp;
+	isp->isp_osinfo._link.device = &isp_dev;
+	isp->isp_osinfo._link.adapter = &isp->isp_osinfo._adapter;
+
+	if (isp->isp_type & ISP_HA_FC) {
+		isp->isp_osinfo._link.openings = FC_OPENINGS;
+		isp->isp_osinfo._link.adapter_buswidth = MAX_FC_TARG;
+		/* We can set max lun width here */
+		isp->isp_osinfo._link.adapter_target =
+			((fcparam *)isp->isp_param)->isp_loopid;
+	} else {
+		isp->isp_osinfo._link.openings = PI_OPENINGS;
+		isp->isp_osinfo._link.adapter_buswidth = MAX_TARGETS;
+		/* We can set max lun width here */
+		isp->isp_osinfo._link.adapter_target =
+			((sdparam *)isp->isp_param)->isp_initiator_id;
+	}
+	if (isp->isp_osinfo._link.openings < 2)
+		isp->isp_osinfo._link.openings = 2;
+
+	/*
+	 * Send a SCSI Bus Reset (used to be done as part of attach,
+	 * but now left to the OS outer layers).
+	 *
+	 * XXX: For now, skip resets for FC because the method by which
+	 * XXX: we deal with loop down after issuing resets (which causes
+	 * XXX: port logouts for all devices) needs interrupts to run so
+	 * XXX: that async events happen.
+	 */
+	if (IS_SCSI(isp)) {
+		(void) isp_control(isp, ISPCTL_RESET_BUS, NULL);
+		/*
+		 * Wait for it to settle.
+		 */
+		delay(2 * 1000000);
+	}
+
+	/*
+	 * Start the watchdog.
+	 *
+	 * The wathdog will, ridiculously enough, also enable Sync negotiation.
+	 */
+	isp->isp_dogactive = 1;
+	timeout(isp_watch, isp, 30 * hz);
+
+	/*
+	 * And attach children (if any).
+	 */
+	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 result;
+	int s;
+
+	isp = xs->sc_link->adapter_softc;
+	s = splbio();
+
+	if (isp->isp_state < ISP_RUNSTATE) {
+		DISABLE_INTS(isp);
+		isp_init(isp);
+		if (isp->isp_state != ISP_INITSTATE) {
+			ENABLE_INTS(isp);
+			(void) splx(s);
+			XS_SETERR(xs, HBA_BOTCH);
+			return (CMD_COMPLETE);
+		}
+		isp->isp_state = ISP_RUNSTATE;
+		ENABLE_INTS(isp);
+	}
+	DISABLE_INTS(isp);
+	result = ispscsicmd(xs);
+	ENABLE_INTS(isp);
+	if (result != CMD_QUEUED || (xs->flags & SCSI_POLL) == 0) {
+		(void) splx(s);
+		return (result);
+	}
+
+	/*
+	 * If we can't use interrupts, poll on completion.
+	 */
+	if (isp_poll(isp, xs, xs->timeout)) {
+		/*
+		 * If no other error occurred but we didn't finish,
+		 * something bad happened.
+		 */
+		if ((xs->flags & ITSDONE) == 0) {
+			isp->isp_nactive--;
+			if (isp->isp_nactive < 0)
+				isp->isp_nactive = 0;
+			if (xs->error == XS_NOERROR) {
+				isp_lostcmd(isp, xs);
+				xs->error = XS_DRIVER_STUFFUP;
+			}
+		}
+	}
+	(void) splx(s);
+	return (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);
+		}
+		delay(1000);	/* wait one millisecond */
+		mswait--;
+	}
+	return (1);
+}
+
+#define	DTHR	2
+
+static void
+isp_watch(arg)
+	void *arg;
+{
+	static int delay_throttle_count = DTHR;
+	int i;
+	struct ispsoftc *isp = arg;
+	ISP_SCSI_XFER_T *xs;
+	int s = splbio();
+
+	/*
+	 * Look for completely dead commands.
+	 */
+	for (i = 0; i < RQUEST_QUEUE_LEN; i++) {
+		if ((xs = (ISP_SCSI_XFER_T *) isp->isp_xflist[i]) == NULL) {
+			continue;
+		}
+		if (XS_TIME(xs) == 0) {
+			continue;
+		}
+		XS_TIME(xs) -= (WATCH_INTERVAL * 1000);
+		/*
+		 * Avoid later thinking that this
+		 * transaction is not being timed.
+		 * Then give ourselves to watchdog
+		 * periods of grace.
+		 */
+		if (xs->timeout == 0) {
+			xs->timeout = 1;
+		} else if (xs->timeout > -(2 * WATCH_INTERVAL * 1000)) {
+			continue;
+		}
+		delay_throttle_count = DTHR;
+		if (isp_control(isp, ISPCTL_ABORT_CMD, xs)) {
+			printf("%s: isp_watch failed to abort command\n",
+			    isp->isp_name);
+			isp_restart(isp);
+			break;
+		}
+	}
+
+	if (delay_throttle_count) {
+		if (--delay_throttle_count == 0) {
+			sdparam *sdp = isp->isp_param;
+			for (i = 0; i < MAX_TARGETS; i++) {
+				sdp->isp_devparam[i].dev_flags |=
+					DPARM_WIDE|DPARM_SYNC|DPARM_TQING;
+				sdp->isp_devparam[i].dev_update = 1;
+			}
+			isp->isp_update = 1;
+		}
+	}
+	timeout(isp_watch, isp, WATCH_INTERVAL * hz);
+	isp->isp_dogactive = 1;
+	(void) splx(s);
+}
+
+/*
+ * Free any associated resources prior to decommissioning and
+ * set the card to a known state (so it doesn't wake up and kick
+ * us when we aren't expecting it to).
+ *
+ * Locks are held before coming here.
+ */
+void
+isp_uninit(isp)
+	struct ispsoftc *isp;
+{
+	int s = splbio();
+	/*
+	 * Leave with interrupts disabled.
+	 */
+	DISABLE_INTS(isp);
+
+	/*
+	 * Turn off the watchdog (if active).
+	 */
+	if (isp->isp_dogactive) {
+		untimeout(isp_watch, isp);
+		isp->isp_dogactive = 0;
+	}
+
+	splx(s);
+}
+
+int
+isp_async(isp, cmd, arg)
+	struct ispsoftc *isp;
+	ispasync_t cmd;
+	void *arg;
+{
+	int s = splbio();
+	switch (cmd) {
+	case ISPASYNC_NEW_TGT_PARAMS:
+		if (IS_SCSI(isp)) {
+			sdparam *sdp = isp->isp_param;
+			char *wt;
+			int ns, flags, tgt;
+
+			tgt = *((int *) arg);
+
+			flags = sdp->isp_devparam[tgt].dev_flags;
+			if (flags & DPARM_SYNC) {
+				ns = sdp->isp_devparam[tgt].sync_period * 4;
+			} else {
+				ns = 0;
+			}
+			switch (flags & (DPARM_WIDE|DPARM_TQING)) {
+			case DPARM_WIDE:
+				wt = ", 16 bit wide\n";
+				break;
+			case DPARM_TQING:
+				wt = ", Tagged Queueing Enabled\n";
+				break;
+			case DPARM_WIDE|DPARM_TQING:
+				wt = ", 16 bit wide, Tagged Queueing Enabled\n";
+				break;
+			default:
+				wt = "\n";
+				break;
+			}
+			if (ns) {
+				printf("%s: Target %d at %dMHz Max Offset %d%s",
+				    isp->isp_name, tgt, 1000 / ns,
+				    sdp->isp_devparam[tgt].sync_offset, wt);
+			} else {
+				printf("%s: Target %d Async Mode%s",
+				    isp->isp_name, tgt, wt);
+			}
+		}
+		break;
+	case ISPASYNC_BUS_RESET:
+		printf("%s: SCSI bus reset detected\n", isp->isp_name);
+		break;
+	case ISPASYNC_LOOP_DOWN:
+		printf("%s: Loop DOWN\n", isp->isp_name);
+		break;
+	case ISPASYNC_LOOP_UP:
+		printf("%s: Loop UP\n", isp->isp_name);
+		break;
+	case ISPASYNC_PDB_CHANGE_COMPLETE:
+#if	0
+	if (isp->isp_type & ISP_HA_FC) {
+		int i;
+		static char *roles[4] = {
+		    "No", "Target", "Initiator", "Target/Initiator"
+		};
+		for (i = 0; i < MAX_FC_TARG; i++)  {
+			isp_pdb_t *pdbp =
+			    &((fcparam *)isp->isp_param)->isp_pdb[i];
+			if (pdbp->pdb_options == INVALID_PDB_OPTIONS)
+				continue;
+			printf("%s: Loop ID %d, %s role\n",
+			    isp->isp_name, pdbp->pdb_loopid,
+			    roles[(pdbp->pdb_prli_svc3 >> 4) & 0x3]);
+			printf("     Node Address 0x%x WWN 0x"
+			    "%02x%02x%02x%02x%02x%02x%02x%02x\n",
+			    BITS2WORD(pdbp->pdb_portid_bits),
+			    pdbp->pdb_portname[0], pdbp->pdb_portname[1],
+			    pdbp->pdb_portname[2], pdbp->pdb_portname[3],
+			    pdbp->pdb_portname[4], pdbp->pdb_portname[5],
+			    pdbp->pdb_portname[6], pdbp->pdb_portname[7]);
+			if (pdbp->pdb_options & PDB_OPTIONS_ADISC)
+				printf("     Hard Address 0x%x WWN 0x"
+				    "%02x%02x%02x%02x%02x%02x%02x%02x\n",
+				    BITS2WORD(pdbp->pdb_hardaddr_bits),
+				    pdbp->pdb_nodename[0],
+				    pdbp->pdb_nodename[1],
+				    pdbp->pdb_nodename[2],
+				    pdbp->pdb_nodename[3],
+				    pdbp->pdb_nodename[4],
+				    pdbp->pdb_nodename[5],
+				    pdbp->pdb_nodename[6],
+				    pdbp->pdb_nodename[7]);
+			switch (pdbp->pdb_prli_svc3 & SVC3_ROLE_MASK) {
+			case SVC3_TGT_ROLE|SVC3_INI_ROLE:
+				printf("     Master State=%s, Slave State=%s\n",
+				    isp2100_pdb_statename(pdbp->pdb_mstate),
+				    isp2100_pdb_statename(pdbp->pdb_sstate));
+				break;
+			case SVC3_TGT_ROLE:
+				printf("     Master State=%s\n",
+				    isp2100_pdb_statename(pdbp->pdb_mstate));
+				break;
+			case SVC3_INI_ROLE:
+				printf("     Slave State=%s\n",
+				    isp2100_pdb_statename(pdbp->pdb_sstate));
+				break;
+			default:
+				break;
+			}
+		}
+		break;
+	}
+#else
+		break;
+#endif
+	case ISPASYNC_CHANGE_NOTIFY:
+		printf("%s: Name Server Database Changed\n", isp->isp_name);
+		break;
+	default:
+		break;
+	}
+	(void) splx(s);
+	return (0);
+}