SCSI: undelete qlogicfc driver

by user request

drivers/scsi/Kconfig

@@ -1155,6 +1155,23 @@ config SCSI_QLOGIC_ISP
 	  To compile this driver as a module, choose M here: the
 	  module will be called qlogicisp.
 
+config SCSI_QLOGIC_FC
+	tristate "Qlogic ISP FC SCSI support"
+	depends on PCI && SCSI
+	help
+	  This is a driver for the QLogic ISP2100 SCSI-FCP host adapter.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called qlogicfc.
+
+config SCSI_QLOGIC_FC_FIRMWARE
+	bool "Include loadable firmware in driver"
+	depends on SCSI_QLOGIC_FC
+  	help
+	  Say Y to include ISP2X00 Fabric Initiator/Target Firmware, with
+	  expanded LUN addressing and FcTape (FCP-2) support, in the
+	  qlogicfc driver. This is required on some platforms.
+
 config SCSI_QLOGIC_1280
 	tristate "Qlogic QLA 1280 SCSI support"
 	depends on PCI && SCSI

drivers/scsi/Makefile

@@ -69,6 +69,7 @@ obj-$(CONFIG_SCSI_NCR_Q720)	+= NCR_Q720_mod.o
 obj-$(CONFIG_SCSI_SYM53C416)	+= sym53c416.o
 obj-$(CONFIG_SCSI_QLOGIC_FAS)	+= qlogicfas.o
 obj-$(CONFIG_SCSI_QLOGIC_ISP)	+= qlogicisp.o 
+obj-$(CONFIG_SCSI_QLOGIC_FC)	+= qlogicfc.o 
 obj-$(CONFIG_SCSI_QLOGIC_1280)	+= qla1280.o 
 obj-$(CONFIG_SCSI_QLA2XXX)	+= qla2xxx/
 obj-$(CONFIG_SCSI_PAS16)	+= pas16.o

drivers/scsi/qlogicfc.h

+/*
+ * QLogic ISP2x00 SCSI-FCP
+ * 
+ * Written by Erik H. Moe, ehm@cris.com
+ * Copyright 1995, Erik H. Moe
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+/* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */
+
+/* This is a version of the isp1020 driver which was modified by
+ * Chris Loveland <cwl@iol.unh.edu> to support the isp2x00
+ */
+
+
+/*
+ * $Date: 1995/09/22 02:32:56 $
+ * $Revision: 0.5 $
+ *
+ * $Log: isp1020.h,v $
+ * Revision 0.5  1995/09/22  02:32:56  root
+ * do auto request sense
+ *
+ * Revision 0.4  1995/08/07  04:48:28  root
+ * supply firmware with driver.
+ * numerous bug fixes/general cleanup of code.
+ *
+ * Revision 0.3  1995/07/16  16:17:16  root
+ * added reset/abort code.
+ *
+ * Revision 0.2  1995/06/29  03:19:43  root
+ * fixed biosparam.
+ * added queue protocol.
+ *
+ * Revision 0.1  1995/06/25  01:56:13  root
+ * Initial release.
+ *
+ */
+
+#ifndef _QLOGICFC_H
+#define _QLOGICFC_H
+
+/*
+ * With the qlogic interface, every queue slot can hold a SCSI
+ * command with up to 2 scatter/gather entries.  If we need more
+ * than 2 entries, continuation entries can be used that hold
+ * another 5 entries each.  Unlike for other drivers, this means
+ * that the maximum number of scatter/gather entries we can
+ * support at any given time is a function of the number of queue
+ * slots available.  That is, host->can_queue and host->sg_tablesize
+ * are dynamic and _not_ independent.  This all works fine because
+ * requests are queued serially and the scatter/gather limit is
+ * determined for each queue request anew.
+ */
+
+#define DATASEGS_PER_COMMAND 2
+#define DATASEGS_PER_CONT 5
+
+#define QLOGICFC_REQ_QUEUE_LEN 255     /* must be power of two - 1 */
+#define QLOGICFC_MAX_SG(ql)	(DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0))
+#define QLOGICFC_CMD_PER_LUN    8
+
+int isp2x00_detect(Scsi_Host_Template *);
+int isp2x00_release(struct Scsi_Host *);
+const char * isp2x00_info(struct Scsi_Host *);
+int isp2x00_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
+int isp2x00_abort(Scsi_Cmnd *);
+int isp2x00_reset(Scsi_Cmnd *, unsigned int);
+int isp2x00_biosparam(struct scsi_device *, struct block_device *,
+		sector_t, int[]);
+#endif /* _QLOGICFC_H */