[PATCH] add config option for qla1280 SCSI MMIO/ioport selection

[PATCH] add config option for qla1280 SCSI MMIO/ioport selection

[Andrey Panin]

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Hi,

attached patch adds config option which allows ioport/mmio
selection for QLA1280 SCSI driver.

With this patch applied QLA1280 can be used on Visws again.

Best regards.

-- 
Andrey Panin		| Linux and UNIX system administrator
pazke@donpac.ru		| PGP key: wwwkeys.pgp.net

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diff -urN -X /usr/share/dontdiff linux-2.6.0-test3.vanilla/drivers/scsi/Kconfig linux-2.6.0-test3/drivers/scsi/Kconfig
--- linux-2.6.0-test3.vanilla/drivers/scsi/Kconfig	Sat Aug  9 08:40:56 2003
+++ linux-2.6.0-test3/drivers/scsi/Kconfig	Mon Sep  1 20:58:04 2003
@@ -1298,6 +1298,16 @@
 	  The module will be called qla1280. If you want to compile it as
 	  a module, say M here and read <file:Documentation/modules.txt>.
 
+config SCSI_QLOGIC_1280_PIO
+	bool "Use PIO instead of MMIO" if !X86_VISWS
+	depends on SCSI_QLOGIC_1280
+	default y if X86_VISWS
+	help
+	  This instructs the driver to use programmed I/O ports (PIO) instead
+	  of PCI shared memory (MMIO).  This can possibly solve some problems
+	  in case your mainboard has memory consistency issues.  If unsure,
+	  say N.
+
 config SCSI_QLOGICPTI
 	tristate "PTI Qlogic, ISP Driver"
 	depends on SBUS && SCSI
diff -urN -X /usr/share/dontdiff linux-2.6.0-test3.vanilla/drivers/scsi/qla1280.c linux-2.6.0-test3/drivers/scsi/qla1280.c
--- linux-2.6.0-test3.vanilla/drivers/scsi/qla1280.c	Mon Sep  1 21:50:04 2003
+++ linux-2.6.0-test3/drivers/scsi/qla1280.c	Mon Sep  1 21:21:33 2003
@@ -331,11 +331,17 @@
  */
 #define  QL1280_LUN_SUPPORT	0
 #define  WATCHDOGTIMER		0
-#define  MEMORY_MAPPED_IO	1
+
 #define  DEBUG_QLA1280_INTR	0
 #define  DEBUG_PRINT_NVRAM	0
 #define  DEBUG_QLA1280		0
 
+#ifdef	CONFIG_SCSI_QLOGIC_1280_PIO
+#define	MEMORY_MAPPED_IO	0
+#else
+#define	MEMORY_MAPPED_IO	1
+#endif
+
 #define UNIQUE_FW_NAME
 #include "qla1280.h"
 #include "ql12160_fw.h"		/* ISP RISC codes */

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