Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 202 insertions, 0 deletions

diff --git a/drivers/scsi/sym53c8xx_2/sym53c8xx.h b/drivers/scsi/sym53c8xx_2/sym53c8xx.h
new file mode 100644
index 0000000000..11f5dc29aa
--- /dev/null
+++ b/drivers/scsi/sym53c8xx_2/sym53c8xx.h
@@ -0,0 +1,202 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 
+ * of PCI-SCSI IO processors.
+ *
+ * Copyright (C) 1999-2001  Gerard Roudier <groudier@free.fr>
+ *
+ * This driver is derived from the Linux sym53c8xx driver.
+ * Copyright (C) 1998-2000  Gerard Roudier
+ *
+ * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 
+ * a port of the FreeBSD ncr driver to Linux-1.2.13.
+ *
+ * The original ncr driver has been written for 386bsd and FreeBSD by
+ *         Wolfgang Stanglmeier        <wolf@cologne.de>
+ *         Stefan Esser                <se@mi.Uni-Koeln.de>
+ * Copyright (C) 1994  Wolfgang Stanglmeier
+ *
+ * Other major contributions:
+ *
+ * NVRAM detection and reading.
+ * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+#ifndef SYM53C8XX_H
+#define SYM53C8XX_H
+
+
+/*
+ *  DMA addressing mode.
+ *
+ *  0 : 32 bit addressing for all chips.
+ *  1 : 40 bit addressing when supported by chip.
+ *  2 : 64 bit addressing when supported by chip,
+ *      limited to 16 segments of 4 GB -> 64 GB max.
+ */
+#define	SYM_CONF_DMA_ADDRESSING_MODE CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
+
+/*
+ *  NVRAM support.
+ */
+#if 1
+#define SYM_CONF_NVRAM_SUPPORT		(1)
+#endif
+
+/*
+ *  These options are not tunable from 'make config'
+ */
+#if 1
+#define	SYM_LINUX_PROC_INFO_SUPPORT
+#define SYM_LINUX_USER_COMMAND_SUPPORT
+#define SYM_LINUX_USER_INFO_SUPPORT
+#define SYM_LINUX_DEBUG_CONTROL_SUPPORT
+#endif
+
+/*
+ *  Also handle old NCR chips if not (0).
+ */
+#define SYM_CONF_GENERIC_SUPPORT	(1)
+
+/*
+ *  Allow tags from 2 to 256, default 8
+ */
+#ifndef CONFIG_SCSI_SYM53C8XX_MAX_TAGS
+#define CONFIG_SCSI_SYM53C8XX_MAX_TAGS	(8)
+#endif
+
+#if	CONFIG_SCSI_SYM53C8XX_MAX_TAGS < 2
+#define SYM_CONF_MAX_TAG	(2)
+#elif	CONFIG_SCSI_SYM53C8XX_MAX_TAGS > 256
+#define SYM_CONF_MAX_TAG	(256)
+#else
+#define	SYM_CONF_MAX_TAG	CONFIG_SCSI_SYM53C8XX_MAX_TAGS
+#endif
+
+#ifndef	CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS
+#define	CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS	SYM_CONF_MAX_TAG
+#endif
+
+/*
+ *  Anyway, we configure the driver for at least 64 tags per LUN. :)
+ */
+#if	SYM_CONF_MAX_TAG <= 64
+#define SYM_CONF_MAX_TAG_ORDER	(6)
+#elif	SYM_CONF_MAX_TAG <= 128
+#define SYM_CONF_MAX_TAG_ORDER	(7)
+#else
+#define SYM_CONF_MAX_TAG_ORDER	(8)
+#endif
+
+/*
+ *  Max number of SG entries.
+ */
+#define SYM_CONF_MAX_SG		(96)
+
+/*
+ *  Driver setup structure.
+ *
+ *  This structure is initialized from linux config options.
+ *  It can be overridden at boot-up by the boot command line.
+ */
+struct sym_driver_setup {
+	u_short	max_tag;
+	u_char	burst_order;
+	u_char	scsi_led;
+	u_char	scsi_diff;
+	u_char	irq_mode;
+	u_char	scsi_bus_check;
+	u_char	host_id;
+
+	u_char	verbose;
+	u_char	settle_delay;
+	u_char	use_nvram;
+	u_long	excludes[8];
+};
+
+#define SYM_SETUP_MAX_TAG		sym_driver_setup.max_tag
+#define SYM_SETUP_BURST_ORDER		sym_driver_setup.burst_order
+#define SYM_SETUP_SCSI_LED		sym_driver_setup.scsi_led
+#define SYM_SETUP_SCSI_DIFF		sym_driver_setup.scsi_diff
+#define SYM_SETUP_IRQ_MODE		sym_driver_setup.irq_mode
+#define SYM_SETUP_SCSI_BUS_CHECK	sym_driver_setup.scsi_bus_check
+#define SYM_SETUP_HOST_ID		sym_driver_setup.host_id
+#define boot_verbose			sym_driver_setup.verbose
+
+/*
+ *  Initial setup.
+ *
+ *  Can be overriden at startup by a command line.
+ */
+#define SYM_LINUX_DRIVER_SETUP	{				\
+	.max_tag	= CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS,	\
+	.burst_order	= 7,					\
+	.scsi_led	= 1,					\
+	.scsi_diff	= 1,					\
+	.irq_mode	= 0,					\
+	.scsi_bus_check	= 1,					\
+	.host_id	= 7,					\
+	.verbose	= 0,					\
+	.settle_delay	= 3,					\
+	.use_nvram	= 1,					\
+}
+
+extern struct sym_driver_setup sym_driver_setup;
+extern unsigned int sym_debug_flags;
+#define DEBUG_FLAGS	sym_debug_flags
+
+/*
+ *  Max number of targets.
+ *  Maximum is 16 and you are advised not to change this value.
+ */
+#ifndef SYM_CONF_MAX_TARGET
+#define SYM_CONF_MAX_TARGET	(16)
+#endif
+
+/*
+ *  Max number of logical units.
+ *  SPI-2 allows up to 64 logical units, but in real life, target
+ *  that implements more that 7 logical units are pretty rare.
+ *  Anyway, the cost of accepting up to 64 logical unit is low in 
+ *  this driver, thus going with the maximum is acceptable.
+ */
+#ifndef SYM_CONF_MAX_LUN
+#define SYM_CONF_MAX_LUN	(64)
+#endif
+
+/*
+ *  Max number of IO control blocks queued to the controller.
+ *  Each entry needs 8 bytes and the queues are allocated contiguously.
+ *  Since we donnot want to allocate more than a page, the theorical 
+ *  maximum is PAGE_SIZE/8. For safety, we announce a bit less to the 
+ *  access method. :)
+ *  When not supplied, as it is suggested, the driver compute some 
+ *  good value for this parameter.
+ */
+/* #define SYM_CONF_MAX_START	(PAGE_SIZE/8 - 16) */
+
+/*
+ *  Support for Immediate Arbitration.
+ *  Not advised.
+ */
+/* #define SYM_CONF_IARB_SUPPORT */
+
+/*
+ *  Only relevant if IARB support configured.
+ *  - Max number of successive settings of IARB hints.
+ *  - Set IARB on arbitration lost.
+ */
+#define SYM_CONF_IARB_MAX 3
+#define SYM_CONF_SET_IARB_ON_ARB_LOST 1
+
+/*
+ *  Returning wrong residuals may make problems.
+ *  When zero, this define tells the driver to 
+ *  always return 0 as transfer residual.
+ *  Btw, all my testings of residuals have succeeded.
+ */
+#define SYM_SETUP_RESIDUAL_SUPPORT 1
+
+#endif /* SYM53C8XX_H */