Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 296 insertions, 0 deletions

diff --git a/drivers/scsi/megaraid/megaraid_ioctl.h b/drivers/scsi/megaraid/megaraid_ioctl.h
new file mode 100644
index 00000000000..bdaee144a1c
--- /dev/null
+++ b/drivers/scsi/megaraid/megaraid_ioctl.h
@@ -0,0 +1,296 @@
+/*
+ *
+ *			Linux MegaRAID device driver
+ *
+ * Copyright (c) 2003-2004  LSI Logic Corporation.
+ *
+ *	   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 of the License, or (at your option) any later version.
+ *
+ * FILE		: megaraid_ioctl.h
+ *
+ * Definitions to interface with user level applications
+ */
+
+#ifndef _MEGARAID_IOCTL_H_
+#define _MEGARAID_IOCTL_H_
+
+#include <linux/types.h>
+#include <asm/semaphore.h>
+
+#include "mbox_defs.h"
+
+/**
+ * con_log() - console log routine
+ * @param level		: indicates the severity of the message.
+ * @fparam mt		: format string
+ *
+ * con_log displays the error messages on the console based on the current
+ * debug level. Also it attaches the appropriate kernel severity level with
+ * the message.
+ *
+ *
+ * consolge messages debug levels
+ */
+#define	CL_ANN		0	/* print unconditionally, announcements */
+#define CL_DLEVEL1	1	/* debug level 1, informative */
+#define CL_DLEVEL2	2	/* debug level 2, verbose */
+#define CL_DLEVEL3	3	/* debug level 3, very verbose */
+
+#define	con_log(level, fmt) if (LSI_DBGLVL >= level) printk fmt;
+
+/*
+ * Definitions & Declarations needed to use common management module
+ */
+
+#define MEGAIOC_MAGIC		'm'
+#define MEGAIOCCMD		_IOWR(MEGAIOC_MAGIC, 0, mimd_t)
+
+#define MEGAIOC_QNADAP		'm'	/* Query # of adapters		*/
+#define MEGAIOC_QDRVRVER	'e'	/* Query driver version		*/
+#define MEGAIOC_QADAPINFO   	'g'	/* Query adapter information	*/
+
+#define USCSICMD		0x80
+#define UIOC_RD			0x00001
+#define UIOC_WR			0x00002
+
+#define MBOX_CMD		0x00000
+#define GET_DRIVER_VER		0x10000
+#define GET_N_ADAP		0x20000
+#define GET_ADAP_INFO		0x30000
+#define GET_CAP			0x40000
+#define GET_STATS		0x50000
+#define GET_IOCTL_VERSION	0x01
+
+#define EXT_IOCTL_SIGN_SZ	16
+#define EXT_IOCTL_SIGN		"$$_EXTD_IOCTL_$$"
+
+#define	MBOX_LEGACY		0x00		/* ioctl has legacy mbox*/
+#define MBOX_HPE		0x01		/* ioctl has hpe mbox	*/
+
+#define	APPTYPE_MIMD		0x00		/* old existing apps	*/
+#define APPTYPE_UIOC		0x01		/* new apps using uioc	*/
+
+#define IOCTL_ISSUE		0x00000001	/* Issue ioctl		*/
+#define IOCTL_ABORT		0x00000002	/* Abort previous ioctl	*/
+
+#define DRVRTYPE_MBOX		0x00000001	/* regular mbox driver	*/
+#define DRVRTYPE_HPE		0x00000002	/* new hpe driver	*/
+
+#define MKADAP(adapno)	(MEGAIOC_MAGIC << 8 | (adapno) )
+#define GETADAP(mkadap)	((mkadap) ^ MEGAIOC_MAGIC << 8)
+
+#define MAX_DMA_POOLS		5		/* 4k, 8k, 16k, 32k, 64k*/
+
+
+/**
+ * struct uioc_t - the common ioctl packet structure
+ *
+ * @signature	: Must be "$$_EXTD_IOCTL_$$"
+ * @mb_type	: Type of the mail box (MB_LEGACY or MB_HPE)
+ * @app_type	: Type of the issuing application (existing or new)
+ * @opcode	: Opcode of the command
+ * @adapno	: Adapter number
+ * @cmdbuf	: Pointer to buffer - can point to mbox or plain data buffer
+ * @xferlen	: xferlen for DCMD and non mailbox commands
+ * @data_dir	: Direction of the data transfer
+ * @status	: Status from the driver
+ * @reserved	: reserved bytes for future expansion
+ *
+ * @user_data	: user data transfer address is saved in this
+ * @user_data_len: length of the data buffer sent by user app
+ * @user_pthru	: user passthru address is saves in this (null if DCMD)
+ * @pthru32	: kernel address passthru (allocated per kioc)
+ * @pthru32_h	: physicall address of @pthru32
+ * @list	: for kioc free pool list maintenance
+ * @done	: call back routine for llds to call when kioc is completed
+ * @buf_vaddr	: dma pool buffer attached to kioc for data transfer
+ * @buf_paddr	: physical address of the dma pool buffer
+ * @pool_index	: index of the dma pool that @buf_vaddr is taken from
+ * @free_buf	: indicates if buffer needs to be freed after kioc completes
+ *
+ * Note		: All LSI drivers understand only this packet. Any other
+ *		: format sent by applications would be converted to this.
+ */
+typedef struct uioc {
+
+/* User Apps: */
+
+	uint8_t			signature[EXT_IOCTL_SIGN_SZ];
+	uint16_t		mb_type;
+	uint16_t		app_type;
+	uint32_t		opcode;
+	uint32_t		adapno;
+	uint64_t		cmdbuf;
+	uint32_t		xferlen;
+	uint32_t		data_dir;
+	int32_t			status;
+	uint8_t			reserved[128];
+
+/* Driver Data: */
+	void __user *		user_data;
+	uint32_t		user_data_len;
+	mraid_passthru_t	__user *user_pthru;
+
+	mraid_passthru_t	*pthru32;
+	dma_addr_t		pthru32_h;
+
+	struct list_head	list;
+	void			(*done)(struct uioc*);
+
+	caddr_t			buf_vaddr;
+	dma_addr_t		buf_paddr;
+	int8_t			pool_index;
+	uint8_t			free_buf;
+
+	uint8_t			timedout;
+
+} __attribute__ ((aligned(1024),packed)) uioc_t;
+
+
+/**
+ * struct mraid_hba_info - information about the controller
+ *
+ * @param pci_vendor_id		: PCI vendor id
+ * @param pci_device_id		: PCI device id
+ * @param subsystem_vendor_id	: PCI subsystem vendor id
+ * @param subsystem_device_id	: PCI subsystem device id
+ * @param baseport		: base port of hba memory
+ * @param pci_bus		: PCI bus
+ * @param pci_dev_fn		: PCI device/function values
+ * @param irq			: interrupt vector for the device
+ *
+ * Extended information of 256 bytes about the controller. Align on the single
+ * byte boundary so that 32-bit applications can be run on 64-bit platform
+ * drivers withoug re-compilation.
+ * NOTE: reduce the number of reserved bytes whenever new field are added, so
+ * that total size of the structure remains 256 bytes.
+ */
+typedef struct mraid_hba_info {
+
+	uint16_t	pci_vendor_id;
+	uint16_t	pci_device_id;
+	uint16_t	subsys_vendor_id;
+	uint16_t	subsys_device_id;
+
+	uint64_t	baseport;
+	uint8_t		pci_bus;
+	uint8_t		pci_dev_fn;
+	uint8_t		pci_slot;
+	uint8_t		irq;
+
+	uint32_t	unique_id;
+	uint32_t	host_no;
+
+	uint8_t		num_ldrv;
+} __attribute__ ((aligned(256), packed)) mraid_hba_info_t;
+
+
+/**
+ * mcontroller	: adapter info structure for old mimd_t apps
+ *
+ * @base	: base address
+ * @irq		: irq number
+ * @numldrv	: number of logical drives
+ * @pcibus	: pci bus
+ * @pcidev	: pci device
+ * @pcifun	: pci function
+ * @pciid	: pci id
+ * @pcivendor	: vendor id
+ * @pcislot	: slot number
+ * @uid		: unique id
+ */
+typedef struct mcontroller {
+
+	uint64_t	base;
+	uint8_t		irq;
+	uint8_t		numldrv;
+	uint8_t		pcibus;
+	uint16_t	pcidev;
+	uint8_t		pcifun;
+	uint16_t	pciid;
+	uint16_t	pcivendor;
+	uint8_t		pcislot;
+	uint32_t	uid;
+
+} __attribute__ ((packed)) mcontroller_t;
+
+
+/**
+ * mm_dmapool_t	: Represents one dma pool with just one buffer
+ *
+ * @vaddr	: Virtual address
+ * @paddr	: DMA physicall address
+ * @bufsize	: In KB - 4 = 4k, 8 = 8k etc.
+ * @handle	: Handle to the dma pool
+ * @lock	: lock to synchronize access to the pool
+ * @in_use	: If pool already in use, attach new block
+ */
+typedef struct mm_dmapool {
+	caddr_t		vaddr;
+	dma_addr_t	paddr;
+	uint32_t	buf_size;
+	struct dma_pool	*handle;
+	spinlock_t	lock;
+	uint8_t		in_use;
+} mm_dmapool_t;
+
+
+/**
+ * mraid_mmadp_t: Structure that drivers pass during (un)registration
+ *
+ * @unique_id		: Any unique id (usually PCI bus+dev+fn)
+ * @drvr_type		: megaraid or hpe (DRVRTYPE_MBOX or DRVRTYPE_HPE)
+ * @drv_data		: Driver specific; not touched by the common module
+ * @timeout		: timeout for issued kiocs
+ * @max_kioc		: Maximum ioctl packets acceptable by the lld
+ * @pdev		: pci dev; used for allocating dma'ble memory
+ * @issue_uioc		: Driver supplied routine to issue uioc_t commands
+ *			: issue_uioc(drvr_data, kioc, ISSUE/ABORT, uioc_done)
+ * @quiescent		: flag to indicate if ioctl can be issued to this adp
+ * @list		: attach with the global list of adapters
+ * @kioc_list		: block of mem for @max_kioc number of kiocs
+ * @kioc_pool		: pool of free kiocs
+ * @kioc_pool_lock	: protection for free pool
+ * @kioc_semaphore	: so as not to exceed @max_kioc parallel ioctls
+ * @mbox_list		: block of mem for @max_kioc number of mboxes
+ * @pthru_dma_pool	: DMA pool to allocate passthru packets
+ * @dma_pool_list	: array of dma pools
+ */
+
+typedef struct mraid_mmadp {
+
+/* Filled by driver */
+
+	uint32_t		unique_id;
+	uint32_t		drvr_type;
+	unsigned long		drvr_data;
+	uint16_t		timeout;
+	uint8_t			max_kioc;
+
+	struct pci_dev		*pdev;
+
+	int(*issue_uioc)(unsigned long, uioc_t *, uint32_t);
+
+/* Maintained by common module */
+	uint32_t		quiescent;
+
+	struct list_head	list;
+	uioc_t			*kioc_list;
+	struct list_head	kioc_pool;
+	spinlock_t		kioc_pool_lock;
+	struct semaphore	kioc_semaphore;
+
+	mbox64_t		*mbox_list;
+	struct dma_pool		*pthru_dma_pool;
+	mm_dmapool_t		dma_pool_list[MAX_DMA_POOLS];
+
+} mraid_mmadp_t;
+
+int mraid_mm_register_adp(mraid_mmadp_t *);
+int mraid_mm_unregister_adp(uint32_t);
+uint32_t mraid_mm_adapter_app_handle(uint32_t);
+
+#endif /* _MEGARAID_IOCTL_H_ */