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0b4972d591
There was an issue in the data structure defined by megaraid driver casuing "kernel unaligned access.." messages to be displayed during IOCTL on IA64 platform. The issue has been reported/fixed by Sakurai Hiroomi [sakurai_hiro@soft.fujitsu.com]. Signed-Off By: Seokmann Ju <seokmann.ju@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
300 lines
8.3 KiB
C
300 lines
8.3 KiB
C
/*
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*
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* Linux MegaRAID device driver
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*
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* Copyright (c) 2003-2004 LSI Logic Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* FILE : megaraid_ioctl.h
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*
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* Definitions to interface with user level applications
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*/
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#ifndef _MEGARAID_IOCTL_H_
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#define _MEGARAID_IOCTL_H_
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#include <linux/types.h>
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#include <asm/semaphore.h>
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#include "mbox_defs.h"
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/**
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* con_log() - console log routine
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* @param level : indicates the severity of the message.
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* @fparam mt : format string
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*
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* con_log displays the error messages on the console based on the current
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* debug level. Also it attaches the appropriate kernel severity level with
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* the message.
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*
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*
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* consolge messages debug levels
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*/
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#define CL_ANN 0 /* print unconditionally, announcements */
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#define CL_DLEVEL1 1 /* debug level 1, informative */
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#define CL_DLEVEL2 2 /* debug level 2, verbose */
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#define CL_DLEVEL3 3 /* debug level 3, very verbose */
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#define con_log(level, fmt) if (LSI_DBGLVL >= level) printk fmt;
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/*
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* Definitions & Declarations needed to use common management module
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*/
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#define MEGAIOC_MAGIC 'm'
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#define MEGAIOCCMD _IOWR(MEGAIOC_MAGIC, 0, mimd_t)
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#define MEGAIOC_QNADAP 'm' /* Query # of adapters */
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#define MEGAIOC_QDRVRVER 'e' /* Query driver version */
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#define MEGAIOC_QADAPINFO 'g' /* Query adapter information */
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#define USCSICMD 0x80
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#define UIOC_RD 0x00001
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#define UIOC_WR 0x00002
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#define MBOX_CMD 0x00000
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#define GET_DRIVER_VER 0x10000
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#define GET_N_ADAP 0x20000
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#define GET_ADAP_INFO 0x30000
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#define GET_CAP 0x40000
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#define GET_STATS 0x50000
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#define GET_IOCTL_VERSION 0x01
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#define EXT_IOCTL_SIGN_SZ 16
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#define EXT_IOCTL_SIGN "$$_EXTD_IOCTL_$$"
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#define MBOX_LEGACY 0x00 /* ioctl has legacy mbox*/
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#define MBOX_HPE 0x01 /* ioctl has hpe mbox */
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#define APPTYPE_MIMD 0x00 /* old existing apps */
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#define APPTYPE_UIOC 0x01 /* new apps using uioc */
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#define IOCTL_ISSUE 0x00000001 /* Issue ioctl */
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#define IOCTL_ABORT 0x00000002 /* Abort previous ioctl */
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#define DRVRTYPE_MBOX 0x00000001 /* regular mbox driver */
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#define DRVRTYPE_HPE 0x00000002 /* new hpe driver */
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#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) )
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#define GETADAP(mkadap) ((mkadap) ^ MEGAIOC_MAGIC << 8)
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#define MAX_DMA_POOLS 5 /* 4k, 8k, 16k, 32k, 64k*/
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/**
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* struct uioc_t - the common ioctl packet structure
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*
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* @signature : Must be "$$_EXTD_IOCTL_$$"
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* @mb_type : Type of the mail box (MB_LEGACY or MB_HPE)
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* @app_type : Type of the issuing application (existing or new)
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* @opcode : Opcode of the command
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* @adapno : Adapter number
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* @cmdbuf : Pointer to buffer - can point to mbox or plain data buffer
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* @xferlen : xferlen for DCMD and non mailbox commands
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* @data_dir : Direction of the data transfer
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* @status : Status from the driver
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* @reserved : reserved bytes for future expansion
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*
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* @user_data : user data transfer address is saved in this
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* @user_data_len: length of the data buffer sent by user app
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* @user_pthru : user passthru address is saves in this (null if DCMD)
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* @pthru32 : kernel address passthru (allocated per kioc)
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* @pthru32_h : physicall address of @pthru32
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* @list : for kioc free pool list maintenance
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* @done : call back routine for llds to call when kioc is completed
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* @buf_vaddr : dma pool buffer attached to kioc for data transfer
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* @buf_paddr : physical address of the dma pool buffer
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* @pool_index : index of the dma pool that @buf_vaddr is taken from
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* @free_buf : indicates if buffer needs to be freed after kioc completes
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*
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* Note : All LSI drivers understand only this packet. Any other
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* : format sent by applications would be converted to this.
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*/
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typedef struct uioc {
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/* User Apps: */
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uint8_t signature[EXT_IOCTL_SIGN_SZ];
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uint16_t mb_type;
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uint16_t app_type;
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uint32_t opcode;
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uint32_t adapno;
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uint64_t cmdbuf;
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uint32_t xferlen;
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uint32_t data_dir;
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int32_t status;
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uint8_t reserved[128];
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/* Driver Data: */
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void __user * user_data;
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uint32_t user_data_len;
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/* 64bit alignment */
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uint32_t pad_for_64bit_align;
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mraid_passthru_t __user *user_pthru;
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mraid_passthru_t *pthru32;
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dma_addr_t pthru32_h;
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struct list_head list;
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void (*done)(struct uioc*);
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caddr_t buf_vaddr;
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dma_addr_t buf_paddr;
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int8_t pool_index;
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uint8_t free_buf;
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uint8_t timedout;
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} __attribute__ ((aligned(1024),packed)) uioc_t;
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/**
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* struct mraid_hba_info - information about the controller
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*
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* @param pci_vendor_id : PCI vendor id
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* @param pci_device_id : PCI device id
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* @param subsystem_vendor_id : PCI subsystem vendor id
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* @param subsystem_device_id : PCI subsystem device id
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* @param baseport : base port of hba memory
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* @param pci_bus : PCI bus
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* @param pci_dev_fn : PCI device/function values
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* @param irq : interrupt vector for the device
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*
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* Extended information of 256 bytes about the controller. Align on the single
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* byte boundary so that 32-bit applications can be run on 64-bit platform
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* drivers withoug re-compilation.
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* NOTE: reduce the number of reserved bytes whenever new field are added, so
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* that total size of the structure remains 256 bytes.
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*/
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typedef struct mraid_hba_info {
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uint16_t pci_vendor_id;
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uint16_t pci_device_id;
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uint16_t subsys_vendor_id;
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uint16_t subsys_device_id;
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uint64_t baseport;
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uint8_t pci_bus;
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uint8_t pci_dev_fn;
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uint8_t pci_slot;
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uint8_t irq;
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uint32_t unique_id;
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uint32_t host_no;
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uint8_t num_ldrv;
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} __attribute__ ((aligned(256), packed)) mraid_hba_info_t;
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/**
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* mcontroller : adapter info structure for old mimd_t apps
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*
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* @base : base address
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* @irq : irq number
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* @numldrv : number of logical drives
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* @pcibus : pci bus
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* @pcidev : pci device
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* @pcifun : pci function
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* @pciid : pci id
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* @pcivendor : vendor id
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* @pcislot : slot number
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* @uid : unique id
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*/
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typedef struct mcontroller {
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uint64_t base;
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uint8_t irq;
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uint8_t numldrv;
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uint8_t pcibus;
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uint16_t pcidev;
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uint8_t pcifun;
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uint16_t pciid;
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uint16_t pcivendor;
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uint8_t pcislot;
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uint32_t uid;
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} __attribute__ ((packed)) mcontroller_t;
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/**
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* mm_dmapool_t : Represents one dma pool with just one buffer
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*
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* @vaddr : Virtual address
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* @paddr : DMA physicall address
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* @bufsize : In KB - 4 = 4k, 8 = 8k etc.
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* @handle : Handle to the dma pool
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* @lock : lock to synchronize access to the pool
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* @in_use : If pool already in use, attach new block
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*/
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typedef struct mm_dmapool {
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caddr_t vaddr;
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dma_addr_t paddr;
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uint32_t buf_size;
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struct dma_pool *handle;
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spinlock_t lock;
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uint8_t in_use;
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} mm_dmapool_t;
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/**
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* mraid_mmadp_t: Structure that drivers pass during (un)registration
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*
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* @unique_id : Any unique id (usually PCI bus+dev+fn)
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* @drvr_type : megaraid or hpe (DRVRTYPE_MBOX or DRVRTYPE_HPE)
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* @drv_data : Driver specific; not touched by the common module
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* @timeout : timeout for issued kiocs
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* @max_kioc : Maximum ioctl packets acceptable by the lld
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* @pdev : pci dev; used for allocating dma'ble memory
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* @issue_uioc : Driver supplied routine to issue uioc_t commands
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* : issue_uioc(drvr_data, kioc, ISSUE/ABORT, uioc_done)
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* @quiescent : flag to indicate if ioctl can be issued to this adp
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* @list : attach with the global list of adapters
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* @kioc_list : block of mem for @max_kioc number of kiocs
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* @kioc_pool : pool of free kiocs
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* @kioc_pool_lock : protection for free pool
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* @kioc_semaphore : so as not to exceed @max_kioc parallel ioctls
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* @mbox_list : block of mem for @max_kioc number of mboxes
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* @pthru_dma_pool : DMA pool to allocate passthru packets
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* @dma_pool_list : array of dma pools
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*/
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typedef struct mraid_mmadp {
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/* Filled by driver */
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uint32_t unique_id;
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uint32_t drvr_type;
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unsigned long drvr_data;
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uint16_t timeout;
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uint8_t max_kioc;
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struct pci_dev *pdev;
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int(*issue_uioc)(unsigned long, uioc_t *, uint32_t);
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/* Maintained by common module */
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uint32_t quiescent;
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struct list_head list;
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uioc_t *kioc_list;
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struct list_head kioc_pool;
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spinlock_t kioc_pool_lock;
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struct semaphore kioc_semaphore;
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mbox64_t *mbox_list;
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struct dma_pool *pthru_dma_pool;
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mm_dmapool_t dma_pool_list[MAX_DMA_POOLS];
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} mraid_mmadp_t;
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int mraid_mm_register_adp(mraid_mmadp_t *);
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int mraid_mm_unregister_adp(uint32_t);
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uint32_t mraid_mm_adapter_app_handle(uint32_t);
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#endif /* _MEGARAID_IOCTL_H_ */
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