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https://git.proxmox.com/git/mirror_smartmontools-debian
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3186 lines
101 KiB
C++
3186 lines
101 KiB
C++
/*
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* os_linux.cpp
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*
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* Home page of code is: http://smartmontools.sourceforge.net
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*
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* Copyright (C) 2003-8 Bruce Allen <smartmontools-support@lists.sourceforge.net>
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* Copyright (C) 2003-8 Doug Gilbert <dougg@torque.net>
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* Copyright (C) 2008 Hank Wu <hank@areca.com.tw>
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* Copyright (C) 2008 Oliver Bock <brevilo@users.sourceforge.net>
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* Copyright (C) 2008-9 Christian Franke <smartmontools-support@lists.sourceforge.net>
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* Copyright (C) 2008 Jordan Hargrave <jordan_hargrave@dell.com>
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*
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* Parts of this file are derived from code that was
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*
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* Written By: Adam Radford <linux@3ware.com>
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* Modifications By: Joel Jacobson <linux@3ware.com>
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* Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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* Brad Strand <linux@3ware.com>
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*
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* Copyright (C) 1999-2003 3ware Inc.
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*
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* Kernel compatablity By: Andre Hedrick <andre@suse.com>
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* Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
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*
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* Other ars of this file are derived from code that was
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*
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* Copyright (C) 1999-2000 Michael Cornwell <cornwell@acm.org>
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* Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* You should have received a copy of the GNU General Public License
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* (for example COPYING); If not, see <http://www.gnu.org/licenses/>.
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*
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* This code was originally developed as a Senior Thesis by Michael Cornwell
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* at the Concurrent Systems Laboratory (now part of the Storage Systems
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* Research Center), Jack Baskin School of Engineering, University of
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* California, Santa Cruz. http://ssrc.soe.ucsc.edu/
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*
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*/
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// This file contains the linux-specific IOCTL parts of
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// smartmontools. It includes one interface routine for ATA devices,
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// one for SCSI devices, and one for ATA devices behind escalade
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// controllers.
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#include "config.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <glob.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_ioctl.h>
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#include <scsi/sg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/file.h>
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#include <unistd.h>
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#include <sys/uio.h>
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#include <sys/types.h>
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#ifndef makedev // old versions of types.h do not include sysmacros.h
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#include <sys/sysmacros.h>
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#endif
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#ifdef WITH_SELINUX
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#include <selinux/selinux.h>
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#endif
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#include "int64.h"
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#include "atacmds.h"
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#include "extern.h"
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#include "os_linux.h"
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#include "scsicmds.h"
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#include "utility.h"
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#include "extern.h"
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#include "cciss.h"
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#include "megaraid.h"
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#include "dev_interface.h"
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#include "dev_ata_cmd_set.h"
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#ifndef ENOTSUP
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#define ENOTSUP ENOSYS
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#endif
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#define ARGUSED(x) ((void)(x))
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const char *os_XXXX_c_cvsid="$Id: os_linux.cpp 2951 2009-10-08 23:43:46Z samm2 $" \
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ATACMDS_H_CVSID CONFIG_H_CVSID INT64_H_CVSID OS_LINUX_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID;
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/* for passing global control variables */
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// (con->reportscsiioctl only)
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extern smartmonctrl *con;
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namespace os_linux { // No need to publish anything, name provided for Doxygen
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/////////////////////////////////////////////////////////////////////////////
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/// Shared open/close routines
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class linux_smart_device
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: virtual public /*implements*/ smart_device
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{
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public:
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explicit linux_smart_device(int flags, int retry_flags = -1)
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: smart_device(never_called),
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m_fd(-1),
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m_flags(flags), m_retry_flags(retry_flags)
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{ }
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virtual ~linux_smart_device() throw();
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virtual bool is_open() const;
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virtual bool open();
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virtual bool close();
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protected:
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/// Return filedesc for derived classes.
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int get_fd() const
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{ return m_fd; }
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private:
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int m_fd; ///< filedesc, -1 if not open.
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int m_flags; ///< Flags for ::open()
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int m_retry_flags; ///< Flags to retry ::open(), -1 if no retry
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};
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linux_smart_device::~linux_smart_device() throw()
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{
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if (m_fd >= 0)
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::close(m_fd);
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}
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bool linux_smart_device::is_open() const
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{
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return (m_fd >= 0);
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}
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bool linux_smart_device::open()
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{
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m_fd = ::open(get_dev_name(), m_flags);
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if (m_fd < 0 && errno == EROFS && m_retry_flags != -1)
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// Retry
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m_fd = ::open(get_dev_name(), m_retry_flags);
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if (m_fd < 0) {
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if (errno == EBUSY && (m_flags & O_EXCL))
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// device is locked
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return set_err(EBUSY,
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"The requested controller is used exclusively by another process!\n"
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"(e.g. smartctl or smartd)\n"
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"Please quit the impeding process or try again later...");
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return set_err((errno==ENOENT || errno==ENOTDIR) ? ENODEV : errno);
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}
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if (m_fd >= 0) {
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// sets FD_CLOEXEC on the opened device file descriptor. The
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// descriptor is otherwise leaked to other applications (mail
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// sender) which may be considered a security risk and may result
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// in AVC messages on SELinux-enabled systems.
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if (-1 == fcntl(m_fd, F_SETFD, FD_CLOEXEC))
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// TODO: Provide an error printing routine in class smart_interface
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pout("fcntl(set FD_CLOEXEC) failed, errno=%d [%s]\n", errno, strerror(errno));
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}
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return true;
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}
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// equivalent to close(file descriptor)
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bool linux_smart_device::close()
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{
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int fd = m_fd; m_fd = -1;
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if (::close(fd) < 0)
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return set_err(errno);
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return true;
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}
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// examples for smartctl
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static const char smartctl_examples[] =
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"=================================================== SMARTCTL EXAMPLES =====\n\n"
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" smartctl --all /dev/hda (Prints all SMART information)\n\n"
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" smartctl --smart=on --offlineauto=on --saveauto=on /dev/hda\n"
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" (Enables SMART on first disk)\n\n"
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" smartctl --test=long /dev/hda (Executes extended disk self-test)\n\n"
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" smartctl --attributes --log=selftest --quietmode=errorsonly /dev/hda\n"
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" (Prints Self-Test & Attribute errors)\n"
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" smartctl --all --device=3ware,2 /dev/sda\n"
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" smartctl --all --device=3ware,2 /dev/twe0\n"
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" smartctl --all --device=3ware,2 /dev/twa0\n"
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" (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n"
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" smartctl --all --device=hpt,1/1/3 /dev/sda\n"
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" (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n"
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" of the 1st channel on the 1st HighPoint RAID controller)\n"
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" smartctl --all --device=areca,3 /dev/sg2\n"
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" (Prints all SMART info for 3rd ATA disk on Areca RAID controller)\n"
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;
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/////////////////////////////////////////////////////////////////////////////
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/// Linux ATA support
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class linux_ata_device
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: public /*implements*/ ata_device_with_command_set,
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public /*extends*/ linux_smart_device
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{
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public:
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linux_ata_device(smart_interface * intf, const char * dev_name, const char * req_type);
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protected:
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virtual int ata_command_interface(smart_command_set command, int select, char * data);
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};
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linux_ata_device::linux_ata_device(smart_interface * intf, const char * dev_name, const char * req_type)
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: smart_device(intf, dev_name, "ata", req_type),
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linux_smart_device(O_RDONLY | O_NONBLOCK)
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{
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}
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// PURPOSE
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// This is an interface routine meant to isolate the OS dependent
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// parts of the code, and to provide a debugging interface. Each
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// different port and OS needs to provide it's own interface. This
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// is the linux one.
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// DETAILED DESCRIPTION OF ARGUMENTS
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// device: is the file descriptor provided by open()
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// command: defines the different operations.
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// select: additional input data if needed (which log, which type of
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// self-test).
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// data: location to write output data, if needed (512 bytes).
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// Note: not all commands use all arguments.
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// RETURN VALUES
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// -1 if the command failed
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// 0 if the command succeeded,
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// STATUS_CHECK routine:
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// -1 if the command failed
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// 0 if the command succeeded and disk SMART status is "OK"
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// 1 if the command succeeded and disk SMART status is "FAILING"
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#define BUFFER_LENGTH (4+512)
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int linux_ata_device::ata_command_interface(smart_command_set command, int select, char * data)
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{
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unsigned char buff[BUFFER_LENGTH];
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// positive: bytes to write to caller. negative: bytes to READ from
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// caller. zero: non-data command
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int copydata=0;
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const int HDIO_DRIVE_CMD_OFFSET = 4;
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// See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl()
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// buff[0]: ATA COMMAND CODE REGISTER
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// buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER
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// buff[2]: ATA FEATURES REGISTER
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// buff[3]: ATA SECTOR COUNT REGISTER
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// Note that on return:
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// buff[2] contains the ATA SECTOR COUNT REGISTER
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// clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes)
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memset(buff, 0, BUFFER_LENGTH);
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buff[0]=ATA_SMART_CMD;
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switch (command){
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case CHECK_POWER_MODE:
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buff[0]=ATA_CHECK_POWER_MODE;
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copydata=1;
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break;
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case READ_VALUES:
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buff[2]=ATA_SMART_READ_VALUES;
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buff[3]=1;
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copydata=512;
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break;
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case READ_THRESHOLDS:
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buff[2]=ATA_SMART_READ_THRESHOLDS;
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buff[1]=buff[3]=1;
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copydata=512;
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break;
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case READ_LOG:
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buff[2]=ATA_SMART_READ_LOG_SECTOR;
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buff[1]=select;
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buff[3]=1;
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copydata=512;
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break;
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case WRITE_LOG:
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break;
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case IDENTIFY:
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buff[0]=ATA_IDENTIFY_DEVICE;
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buff[3]=1;
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copydata=512;
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break;
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case PIDENTIFY:
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buff[0]=ATA_IDENTIFY_PACKET_DEVICE;
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buff[3]=1;
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copydata=512;
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break;
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case ENABLE:
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buff[2]=ATA_SMART_ENABLE;
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buff[1]=1;
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break;
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case DISABLE:
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buff[2]=ATA_SMART_DISABLE;
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buff[1]=1;
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break;
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case STATUS:
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// this command only says if SMART is working. It could be
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// replaced with STATUS_CHECK below.
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buff[2]=ATA_SMART_STATUS;
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break;
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case AUTO_OFFLINE:
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// NOTE: According to ATAPI 4 and UP, this command is obsolete
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// select == 241 for enable but no data transfer. Use TASK ioctl.
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buff[1]=ATA_SMART_AUTO_OFFLINE;
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buff[2]=select;
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break;
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case AUTOSAVE:
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// select == 248 for enable but no data transfer. Use TASK ioctl.
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buff[1]=ATA_SMART_AUTOSAVE;
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buff[2]=select;
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break;
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case IMMEDIATE_OFFLINE:
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buff[2]=ATA_SMART_IMMEDIATE_OFFLINE;
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buff[1]=select;
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break;
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case STATUS_CHECK:
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// This command uses HDIO_DRIVE_TASK and has different syntax than
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// the other commands.
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buff[1]=ATA_SMART_STATUS;
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break;
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default:
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pout("Unrecognized command %d in linux_ata_command_interface()\n"
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"Please contact " PACKAGE_BUGREPORT "\n", command);
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errno=ENOSYS;
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return -1;
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}
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// This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the
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// only ioctl() that can be used to WRITE data to the disk.
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if (command==WRITE_LOG) {
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unsigned char task[sizeof(ide_task_request_t)+512];
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ide_task_request_t *reqtask=(ide_task_request_t *) task;
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task_struct_t *taskfile=(task_struct_t *) reqtask->io_ports;
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int retval;
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memset(task, 0, sizeof(task));
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taskfile->data = 0;
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taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR;
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taskfile->sector_count = 1;
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taskfile->sector_number = select;
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taskfile->low_cylinder = 0x4f;
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taskfile->high_cylinder = 0xc2;
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taskfile->device_head = 0;
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taskfile->command = ATA_SMART_CMD;
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reqtask->data_phase = TASKFILE_OUT;
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reqtask->req_cmd = IDE_DRIVE_TASK_OUT;
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reqtask->out_size = 512;
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reqtask->in_size = 0;
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// copy user data into the task request structure
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memcpy(task+sizeof(ide_task_request_t), data, 512);
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if ((retval=ioctl(get_fd(), HDIO_DRIVE_TASKFILE, task))) {
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if (retval==-EINVAL)
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pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n");
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return -1;
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}
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return 0;
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}
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// There are two different types of ioctls(). The HDIO_DRIVE_TASK
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// one is this:
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if (command==STATUS_CHECK || command==AUTOSAVE || command==AUTO_OFFLINE){
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int retval;
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// NOT DOCUMENTED in /usr/src/linux/include/linux/hdreg.h. You
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// have to read the IDE driver source code. Sigh.
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// buff[0]: ATA COMMAND CODE REGISTER
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// buff[1]: ATA FEATURES REGISTER
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// buff[2]: ATA SECTOR_COUNT
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// buff[3]: ATA SECTOR NUMBER
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// buff[4]: ATA CYL LO REGISTER
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// buff[5]: ATA CYL HI REGISTER
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// buff[6]: ATA DEVICE HEAD
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unsigned const char normal_lo=0x4f, normal_hi=0xc2;
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unsigned const char failed_lo=0xf4, failed_hi=0x2c;
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buff[4]=normal_lo;
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buff[5]=normal_hi;
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if ((retval=ioctl(get_fd(), HDIO_DRIVE_TASK, buff))) {
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if (retval==-EINVAL) {
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pout("Error SMART Status command via HDIO_DRIVE_TASK failed");
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pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n");
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}
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else
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syserror("Error SMART Status command failed");
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return -1;
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}
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// Cyl low and Cyl high unchanged means "Good SMART status"
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if (buff[4]==normal_lo && buff[5]==normal_hi)
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return 0;
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// These values mean "Bad SMART status"
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if (buff[4]==failed_lo && buff[5]==failed_hi)
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return 1;
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// We haven't gotten output that makes sense; print out some debugging info
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syserror("Error SMART Status command failed");
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pout("Please get assistance from " PACKAGE_HOMEPAGE "\n");
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pout("Register values returned from SMART Status command are:\n");
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pout("ST =0x%02x\n",(int)buff[0]);
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pout("ERR=0x%02x\n",(int)buff[1]);
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pout("NS =0x%02x\n",(int)buff[2]);
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pout("SC =0x%02x\n",(int)buff[3]);
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pout("CL =0x%02x\n",(int)buff[4]);
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pout("CH =0x%02x\n",(int)buff[5]);
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pout("SEL=0x%02x\n",(int)buff[6]);
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return -1;
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}
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#if 1
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// Note to people doing ports to other OSes -- don't worry about
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// this block -- you can safely ignore it. I have put it here
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// because under linux when you do IDENTIFY DEVICE to a packet
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// device, it generates an ugly kernel syslog error message. This
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// is harmless but frightens users. So this block detects packet
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// devices and make IDENTIFY DEVICE fail "nicely" without a syslog
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// error message.
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//
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// If you read only the ATA specs, it appears as if a packet device
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// *might* respond to the IDENTIFY DEVICE command. This is
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// misleading - it's because around the time that SFF-8020 was
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// incorporated into the ATA-3/4 standard, the ATA authors were
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// sloppy. See SFF-8020 and you will see that ATAPI devices have
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// *always* had IDENTIFY PACKET DEVICE as a mandatory part of their
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// command set, and return 'Command Aborted' to IDENTIFY DEVICE.
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if (command==IDENTIFY || command==PIDENTIFY){
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unsigned short deviceid[256];
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// check the device identity, as seen when the system was booted
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// or the device was FIRST registered. This will not be current
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// if the user has subsequently changed some of the parameters. If
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// device is a packet device, swap the command interpretations.
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if (!ioctl(get_fd(), HDIO_GET_IDENTITY, deviceid) && (deviceid[0] & 0x8000))
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buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE;
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}
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#endif
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// We are now doing the HDIO_DRIVE_CMD type ioctl.
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if ((ioctl(get_fd(), HDIO_DRIVE_CMD, buff)))
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return -1;
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// CHECK POWER MODE command returns information in the Sector Count
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// register (buff[3]). Copy to return data buffer.
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if (command==CHECK_POWER_MODE)
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buff[HDIO_DRIVE_CMD_OFFSET]=buff[2];
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// if the command returns data then copy it back
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if (copydata)
|
|
memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// >>>>>> Start of general SCSI specific linux code
|
|
|
|
/* Linux specific code.
|
|
* Historically smartmontools (and smartsuite before it) used the
|
|
* SCSI_IOCTL_SEND_COMMAND ioctl which is available to all linux device
|
|
* nodes that use the SCSI subsystem. A better interface has been available
|
|
* via the SCSI generic (sg) driver but this involves the extra step of
|
|
* mapping disk devices (e.g. /dev/sda) to the corresponding sg device
|
|
* (e.g. /dev/sg2). In the linux kernel 2.6 series most of the facilities of
|
|
* the sg driver have become available via the SG_IO ioctl which is available
|
|
* on all SCSI devices (on SCSI tape devices from lk 2.6.6).
|
|
* So the strategy below is to find out if the SG_IO ioctl is available and
|
|
* if so use it; failing that use the older SCSI_IOCTL_SEND_COMMAND ioctl.
|
|
* Should work in 2.0, 2.2, 2.4 and 2.6 series linux kernels. */
|
|
|
|
#define MAX_DXFER_LEN 1024 /* can be increased if necessary */
|
|
#define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */
|
|
#define SG_IO_RESP_SENSE_LEN 64 /* large enough see buffer */
|
|
#define LSCSI_DRIVER_MASK 0xf /* mask out "suggestions" */
|
|
#define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */
|
|
#define LSCSI_DRIVER_TIMEOUT 0x6
|
|
#define LSCSI_DID_TIME_OUT 0x3
|
|
#define LSCSI_DID_BUS_BUSY 0x2
|
|
#define LSCSI_DID_NO_CONNECT 0x1
|
|
|
|
#ifndef SCSI_IOCTL_SEND_COMMAND
|
|
#define SCSI_IOCTL_SEND_COMMAND 1
|
|
#endif
|
|
|
|
#define SG_IO_PRESENT_UNKNOWN 0
|
|
#define SG_IO_PRESENT_YES 1
|
|
#define SG_IO_PRESENT_NO 2
|
|
|
|
static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report,
|
|
int unknown);
|
|
static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report);
|
|
|
|
static int sg_io_state = SG_IO_PRESENT_UNKNOWN;
|
|
|
|
/* Preferred implementation for issuing SCSI commands in linux. This
|
|
* function uses the SG_IO ioctl. Return 0 if command issued successfully
|
|
* (various status values should still be checked). If the SCSI command
|
|
* cannot be issued then a negative errno value is returned. */
|
|
static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report,
|
|
int unknown)
|
|
{
|
|
#ifndef SG_IO
|
|
ARGUSED(dev_fd); ARGUSED(iop); ARGUSED(report);
|
|
return -ENOTTY;
|
|
#else
|
|
struct sg_io_hdr io_hdr;
|
|
|
|
if (report > 0) {
|
|
int k, j;
|
|
const unsigned char * ucp = iop->cmnd;
|
|
const char * np;
|
|
char buff[256];
|
|
const int sz = (int)sizeof(buff);
|
|
|
|
np = scsi_get_opcode_name(ucp[0]);
|
|
j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
|
|
for (k = 0; k < (int)iop->cmnd_len; ++k)
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
|
|
if ((report > 1) &&
|
|
(DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
|
|
int trunc = (iop->dxfer_len > 256) ? 1 : 0;
|
|
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing "
|
|
"data, len=%d%s:\n", (int)iop->dxfer_len,
|
|
(trunc ? " [only first 256 bytes shown]" : ""));
|
|
dStrHex((const char *)iop->dxferp,
|
|
(trunc ? 256 : iop->dxfer_len) , 1);
|
|
}
|
|
else
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
|
|
pout("%s", buff);
|
|
}
|
|
memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
|
|
io_hdr.interface_id = 'S';
|
|
io_hdr.cmd_len = iop->cmnd_len;
|
|
io_hdr.mx_sb_len = iop->max_sense_len;
|
|
io_hdr.dxfer_len = iop->dxfer_len;
|
|
io_hdr.dxferp = iop->dxferp;
|
|
io_hdr.cmdp = iop->cmnd;
|
|
io_hdr.sbp = iop->sensep;
|
|
/* sg_io_hdr interface timeout has millisecond units. Timeout of 0
|
|
defaults to 60 seconds. */
|
|
io_hdr.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000;
|
|
switch (iop->dxfer_dir) {
|
|
case DXFER_NONE:
|
|
io_hdr.dxfer_direction = SG_DXFER_NONE;
|
|
break;
|
|
case DXFER_FROM_DEVICE:
|
|
io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
|
|
break;
|
|
case DXFER_TO_DEVICE:
|
|
io_hdr.dxfer_direction = SG_DXFER_TO_DEV;
|
|
break;
|
|
default:
|
|
pout("do_scsi_cmnd_io: bad dxfer_dir\n");
|
|
return -EINVAL;
|
|
}
|
|
iop->resp_sense_len = 0;
|
|
iop->scsi_status = 0;
|
|
iop->resid = 0;
|
|
if (ioctl(dev_fd, SG_IO, &io_hdr) < 0) {
|
|
if (report && (! unknown))
|
|
pout(" SG_IO ioctl failed, errno=%d [%s]\n", errno,
|
|
strerror(errno));
|
|
return -errno;
|
|
}
|
|
iop->resid = io_hdr.resid;
|
|
iop->scsi_status = io_hdr.status;
|
|
if (report > 0) {
|
|
pout(" scsi_status=0x%x, host_status=0x%x, driver_status=0x%x\n"
|
|
" info=0x%x duration=%d milliseconds resid=%d\n", io_hdr.status,
|
|
io_hdr.host_status, io_hdr.driver_status, io_hdr.info,
|
|
io_hdr.duration, io_hdr.resid);
|
|
if (report > 1) {
|
|
if (DXFER_FROM_DEVICE == iop->dxfer_dir) {
|
|
int trunc, len;
|
|
|
|
len = iop->dxfer_len - iop->resid;
|
|
trunc = (len > 256) ? 1 : 0;
|
|
if (len > 0) {
|
|
pout(" Incoming data, len=%d%s:\n", len,
|
|
(trunc ? " [only first 256 bytes shown]" : ""));
|
|
dStrHex((const char*)iop->dxferp, (trunc ? 256 : len),
|
|
1);
|
|
} else
|
|
pout(" Incoming data trimmed to nothing by resid\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (io_hdr.info | SG_INFO_CHECK) { /* error or warning */
|
|
int masked_driver_status = (LSCSI_DRIVER_MASK & io_hdr.driver_status);
|
|
|
|
if (0 != io_hdr.host_status) {
|
|
if ((LSCSI_DID_NO_CONNECT == io_hdr.host_status) ||
|
|
(LSCSI_DID_BUS_BUSY == io_hdr.host_status) ||
|
|
(LSCSI_DID_TIME_OUT == io_hdr.host_status))
|
|
return -ETIMEDOUT;
|
|
else
|
|
return -EIO; /* catch all */
|
|
}
|
|
if (0 != masked_driver_status) {
|
|
if (LSCSI_DRIVER_TIMEOUT == masked_driver_status)
|
|
return -ETIMEDOUT;
|
|
else if (LSCSI_DRIVER_SENSE != masked_driver_status)
|
|
return -EIO;
|
|
}
|
|
if (LSCSI_DRIVER_SENSE == masked_driver_status)
|
|
iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
|
|
iop->resp_sense_len = io_hdr.sb_len_wr;
|
|
if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
|
|
iop->sensep && (iop->resp_sense_len > 0)) {
|
|
if (report > 1) {
|
|
pout(" >>> Sense buffer, len=%d:\n",
|
|
(int)iop->resp_sense_len);
|
|
dStrHex((const char *)iop->sensep, iop->resp_sense_len , 1);
|
|
}
|
|
}
|
|
if (report) {
|
|
if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) {
|
|
if ((iop->sensep[0] & 0x7f) > 0x71)
|
|
pout(" status=%x: [desc] sense_key=%x asc=%x ascq=%x\n",
|
|
iop->scsi_status, iop->sensep[1] & 0xf,
|
|
iop->sensep[2], iop->sensep[3]);
|
|
else
|
|
pout(" status=%x: sense_key=%x asc=%x ascq=%x\n",
|
|
iop->scsi_status, iop->sensep[2] & 0xf,
|
|
iop->sensep[12], iop->sensep[13]);
|
|
}
|
|
else
|
|
pout(" status=0x%x\n", iop->scsi_status);
|
|
}
|
|
}
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
struct linux_ioctl_send_command
|
|
{
|
|
int inbufsize;
|
|
int outbufsize;
|
|
UINT8 buff[MAX_DXFER_LEN + 16];
|
|
};
|
|
|
|
/* The Linux SCSI_IOCTL_SEND_COMMAND ioctl is primitive and it doesn't
|
|
* support: CDB length (guesses it from opcode), resid and timeout.
|
|
* Patches in Linux 2.4.21 and 2.5.70 to extend SEND DIAGNOSTIC timeout
|
|
* to 2 hours in order to allow long foreground extended self tests. */
|
|
static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report)
|
|
{
|
|
struct linux_ioctl_send_command wrk;
|
|
int status, buff_offset;
|
|
size_t len;
|
|
|
|
memcpy(wrk.buff, iop->cmnd, iop->cmnd_len);
|
|
buff_offset = iop->cmnd_len;
|
|
if (report > 0) {
|
|
int k, j;
|
|
const unsigned char * ucp = iop->cmnd;
|
|
const char * np;
|
|
char buff[256];
|
|
const int sz = (int)sizeof(buff);
|
|
|
|
np = scsi_get_opcode_name(ucp[0]);
|
|
j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
|
|
for (k = 0; k < (int)iop->cmnd_len; ++k)
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
|
|
if ((report > 1) &&
|
|
(DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
|
|
int trunc = (iop->dxfer_len > 256) ? 1 : 0;
|
|
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing "
|
|
"data, len=%d%s:\n", (int)iop->dxfer_len,
|
|
(trunc ? " [only first 256 bytes shown]" : ""));
|
|
dStrHex((const char *)iop->dxferp,
|
|
(trunc ? 256 : iop->dxfer_len) , 1);
|
|
}
|
|
else
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
|
|
pout("%s", buff);
|
|
}
|
|
switch (iop->dxfer_dir) {
|
|
case DXFER_NONE:
|
|
wrk.inbufsize = 0;
|
|
wrk.outbufsize = 0;
|
|
break;
|
|
case DXFER_FROM_DEVICE:
|
|
wrk.inbufsize = 0;
|
|
if (iop->dxfer_len > MAX_DXFER_LEN)
|
|
return -EINVAL;
|
|
wrk.outbufsize = iop->dxfer_len;
|
|
break;
|
|
case DXFER_TO_DEVICE:
|
|
if (iop->dxfer_len > MAX_DXFER_LEN)
|
|
return -EINVAL;
|
|
memcpy(wrk.buff + buff_offset, iop->dxferp, iop->dxfer_len);
|
|
wrk.inbufsize = iop->dxfer_len;
|
|
wrk.outbufsize = 0;
|
|
break;
|
|
default:
|
|
pout("do_scsi_cmnd_io: bad dxfer_dir\n");
|
|
return -EINVAL;
|
|
}
|
|
iop->resp_sense_len = 0;
|
|
iop->scsi_status = 0;
|
|
iop->resid = 0;
|
|
status = ioctl(dev_fd, SCSI_IOCTL_SEND_COMMAND, &wrk);
|
|
if (-1 == status) {
|
|
if (report)
|
|
pout(" SCSI_IOCTL_SEND_COMMAND ioctl failed, errno=%d [%s]\n",
|
|
errno, strerror(errno));
|
|
return -errno;
|
|
}
|
|
if (0 == status) {
|
|
if (report > 0)
|
|
pout(" status=0\n");
|
|
if (DXFER_FROM_DEVICE == iop->dxfer_dir) {
|
|
memcpy(iop->dxferp, wrk.buff, iop->dxfer_len);
|
|
if (report > 1) {
|
|
int trunc = (iop->dxfer_len > 256) ? 1 : 0;
|
|
|
|
pout(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len,
|
|
(trunc ? " [only first 256 bytes shown]" : ""));
|
|
dStrHex((const char*)iop->dxferp,
|
|
(trunc ? 256 : iop->dxfer_len) , 1);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */
|
|
if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf))
|
|
iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
|
|
len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ?
|
|
SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len;
|
|
if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
|
|
iop->sensep && (len > 0)) {
|
|
memcpy(iop->sensep, wrk.buff, len);
|
|
iop->resp_sense_len = len;
|
|
if (report > 1) {
|
|
pout(" >>> Sense buffer, len=%d:\n", (int)len);
|
|
dStrHex((const char *)wrk.buff, len , 1);
|
|
}
|
|
}
|
|
if (report) {
|
|
if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) {
|
|
pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff,
|
|
wrk.buff[2] & 0xf, wrk.buff[12], wrk.buff[13]);
|
|
}
|
|
else
|
|
pout(" status=0x%x\n", status);
|
|
}
|
|
if (iop->scsi_status > 0)
|
|
return 0;
|
|
else {
|
|
if (report > 0)
|
|
pout(" ioctl status=0x%x but scsi status=0, fail with EIO\n",
|
|
status);
|
|
return -EIO; /* give up, assume no device there */
|
|
}
|
|
}
|
|
|
|
/* SCSI command transmission interface function, linux version.
|
|
* Returns 0 if SCSI command successfully launched and response
|
|
* received. Even when 0 is returned the caller should check
|
|
* scsi_cmnd_io::scsi_status for SCSI defined errors and warnings
|
|
* (e.g. CHECK CONDITION). If the SCSI command could not be issued
|
|
* (e.g. device not present or timeout) or some other problem
|
|
* (e.g. timeout) then returns a negative errno value */
|
|
static int do_normal_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop,
|
|
int report)
|
|
{
|
|
int res;
|
|
|
|
/* implementation relies on static sg_io_state variable. If not
|
|
* previously set tries the SG_IO ioctl. If that succeeds assume
|
|
* that SG_IO ioctl functional. If it fails with an errno value
|
|
* other than ENODEV (no device) or permission then assume
|
|
* SCSI_IOCTL_SEND_COMMAND is the only option. */
|
|
switch (sg_io_state) {
|
|
case SG_IO_PRESENT_UNKNOWN:
|
|
/* ignore report argument */
|
|
if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, 1))) {
|
|
sg_io_state = SG_IO_PRESENT_YES;
|
|
return 0;
|
|
} else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res))
|
|
return res; /* wait until we see a device */
|
|
sg_io_state = SG_IO_PRESENT_NO;
|
|
/* drop through by design */
|
|
case SG_IO_PRESENT_NO:
|
|
return sisc_cmnd_io(dev_fd, iop, report);
|
|
case SG_IO_PRESENT_YES:
|
|
return sg_io_cmnd_io(dev_fd, iop, report, 0);
|
|
default:
|
|
pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state);
|
|
sg_io_state = SG_IO_PRESENT_UNKNOWN;
|
|
return -EIO; /* report error and reset state */
|
|
}
|
|
}
|
|
|
|
// >>>>>> End of general SCSI specific linux code
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// Standard SCSI support
|
|
|
|
class linux_scsi_device
|
|
: public /*implements*/ scsi_device,
|
|
public /*extends*/ linux_smart_device
|
|
{
|
|
public:
|
|
linux_scsi_device(smart_interface * intf, const char * dev_name, const char * req_type);
|
|
|
|
virtual smart_device * autodetect_open();
|
|
|
|
virtual bool scsi_pass_through(scsi_cmnd_io * iop);
|
|
};
|
|
|
|
linux_scsi_device::linux_scsi_device(smart_interface * intf,
|
|
const char * dev_name, const char * req_type)
|
|
: smart_device(intf, dev_name, "scsi", req_type),
|
|
linux_smart_device(O_RDWR | O_NONBLOCK, O_RDONLY | O_NONBLOCK)
|
|
{
|
|
}
|
|
|
|
|
|
bool linux_scsi_device::scsi_pass_through(scsi_cmnd_io * iop)
|
|
{
|
|
int status = do_normal_scsi_cmnd_io(get_fd(), iop, con->reportscsiioctl);
|
|
if (status < 0)
|
|
return set_err(-status);
|
|
return true;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// LSI MegaRAID support
|
|
|
|
class linux_megaraid_device
|
|
: public /* implements */ scsi_device,
|
|
public /* extends */ linux_smart_device
|
|
{
|
|
public:
|
|
linux_megaraid_device(smart_interface *intf, const char *name,
|
|
unsigned int bus, unsigned int tgt);
|
|
|
|
virtual ~linux_megaraid_device() throw();
|
|
|
|
virtual smart_device * autodetect_open();
|
|
|
|
virtual bool open();
|
|
virtual bool close();
|
|
|
|
virtual bool scsi_pass_through(scsi_cmnd_io *iop);
|
|
|
|
private:
|
|
unsigned int m_disknum;
|
|
unsigned int m_busnum;
|
|
unsigned int m_hba;
|
|
int m_fd;
|
|
|
|
bool (linux_megaraid_device::*pt_cmd)(int cdblen, void *cdb, int dataLen, void *data,
|
|
int senseLen, void *sense, int report);
|
|
bool megasas_cmd(int cdbLen, void *cdb, int dataLen, void *data,
|
|
int senseLen, void *sense, int report);
|
|
bool megadev_cmd(int cdbLen, void *cdb, int dataLen, void *data,
|
|
int senseLen, void *sense, int report);
|
|
};
|
|
|
|
linux_megaraid_device::linux_megaraid_device(smart_interface *intf,
|
|
const char *dev_name, unsigned int bus, unsigned int tgt)
|
|
: smart_device(intf, dev_name, "megaraid", "megaraid"),
|
|
linux_smart_device(O_RDWR | O_NONBLOCK),
|
|
m_disknum(tgt), m_busnum(bus), m_hba(0),
|
|
m_fd(-1), pt_cmd(0)
|
|
{
|
|
set_info().info_name = strprintf("%s [megaraid_disk_%02d]", dev_name, m_disknum);
|
|
}
|
|
|
|
linux_megaraid_device::~linux_megaraid_device() throw()
|
|
{
|
|
if (m_fd >= 0)
|
|
::close(m_fd);
|
|
}
|
|
|
|
smart_device * linux_megaraid_device::autodetect_open()
|
|
{
|
|
// Open device
|
|
if (!open())
|
|
return this;
|
|
|
|
// The code below is based on smartd.cpp:SCSIFilterKnown()
|
|
if (strcmp(get_req_type(), "megaraid"))
|
|
return this;
|
|
|
|
// Get INQUIRY
|
|
unsigned char req_buff[64] = {0, };
|
|
int req_len = 36;
|
|
if (scsiStdInquiry(this, req_buff, req_len)) {
|
|
close();
|
|
set_err(EIO, "INQUIRY failed");
|
|
return this;
|
|
}
|
|
|
|
int avail_len = req_buff[4] + 5;
|
|
int len = (avail_len < req_len ? avail_len : req_len);
|
|
if (len < 36)
|
|
return this;
|
|
|
|
printf("Got MegaRAID inquiry.. %s\n", req_buff+8);
|
|
|
|
// Use INQUIRY to detect type
|
|
smart_device * newdev = 0;
|
|
try {
|
|
// SAT or USB ?
|
|
newdev = smi()->autodetect_sat_device(this, req_buff, len);
|
|
if (newdev)
|
|
// NOTE: 'this' is now owned by '*newdev'
|
|
return newdev;
|
|
}
|
|
catch (...) {
|
|
// Cleanup if exception occurs after newdev was allocated
|
|
delete newdev;
|
|
throw;
|
|
}
|
|
|
|
// Nothing special found
|
|
return this;
|
|
}
|
|
|
|
|
|
bool linux_megaraid_device::open()
|
|
{
|
|
char line[128];
|
|
int mjr, n1;
|
|
FILE *fp;
|
|
int report = con->reportscsiioctl;
|
|
|
|
if (!linux_smart_device::open())
|
|
return false;
|
|
|
|
/* Get device HBA */
|
|
struct sg_scsi_id sgid;
|
|
if (ioctl(get_fd(), SG_GET_SCSI_ID, &sgid) == 0) {
|
|
m_hba = sgid.host_no;
|
|
}
|
|
else if (ioctl(get_fd(), SCSI_IOCTL_GET_BUS_NUMBER, &m_hba) != 0) {
|
|
int err = errno;
|
|
linux_smart_device::close();
|
|
return set_err(err, "can't get bus number");
|
|
}
|
|
|
|
/* Perform mknod of device ioctl node */
|
|
fp = fopen("/proc/devices", "r");
|
|
while (fgets(line, sizeof(line), fp) != NULL) {
|
|
n1=0;
|
|
if (sscanf(line, "%d megaraid_sas_ioctl%n", &mjr, &n1) == 1 && n1 == 22) {
|
|
n1=mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR, makedev(mjr, 0));
|
|
if(report > 0)
|
|
printf("Creating /dev/megaraid_sas_ioctl_node = %d\n", n1 >= 0 ? 0 : errno);
|
|
if (n1 >= 0 || errno == EEXIST)
|
|
break;
|
|
}
|
|
else if (sscanf(line, "%d megadev%n", &mjr, &n1) == 1 && n1 == 11) {
|
|
n1=mknod("/dev/megadev0", S_IFCHR, makedev(mjr, 0));
|
|
if(report > 0)
|
|
printf("Creating /dev/megadev0 = %d\n", n1 >= 0 ? 0 : errno);
|
|
if (n1 >= 0 || errno == EEXIST)
|
|
break;
|
|
}
|
|
}
|
|
fclose(fp);
|
|
|
|
/* Open Device IOCTL node */
|
|
if ((m_fd = ::open("/dev/megaraid_sas_ioctl_node", O_RDWR)) >= 0) {
|
|
pt_cmd = &linux_megaraid_device::megasas_cmd;
|
|
}
|
|
else if ((m_fd = ::open("/dev/megadev0", O_RDWR)) >= 0) {
|
|
pt_cmd = &linux_megaraid_device::megadev_cmd;
|
|
}
|
|
else {
|
|
int err = errno;
|
|
linux_smart_device::close();
|
|
return set_err(err, "cannot open /dev/megaraid_sas_ioctl_node or /dev/megadev0");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool linux_megaraid_device::close()
|
|
{
|
|
if (m_fd >= 0)
|
|
::close(m_fd);
|
|
m_fd = -1; m_hba = 0; pt_cmd = 0;
|
|
return linux_smart_device::close();
|
|
}
|
|
|
|
bool linux_megaraid_device::scsi_pass_through(scsi_cmnd_io *iop)
|
|
{
|
|
int report = con->reportscsiioctl;
|
|
|
|
if (report > 0) {
|
|
int k, j;
|
|
const unsigned char * ucp = iop->cmnd;
|
|
const char * np;
|
|
char buff[256];
|
|
const int sz = (int)sizeof(buff);
|
|
|
|
np = scsi_get_opcode_name(ucp[0]);
|
|
j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
|
|
for (k = 0; k < (int)iop->cmnd_len; ++k)
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
|
|
if ((report > 1) &&
|
|
(DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
|
|
int trunc = (iop->dxfer_len > 256) ? 1 : 0;
|
|
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing "
|
|
"data, len=%d%s:\n", (int)iop->dxfer_len,
|
|
(trunc ? " [only first 256 bytes shown]" : ""));
|
|
dStrHex((const char *)iop->dxferp,
|
|
(trunc ? 256 : iop->dxfer_len) , 1);
|
|
}
|
|
else
|
|
j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
|
|
pout("%s", buff);
|
|
}
|
|
|
|
/* Controller rejects Enable SMART and Test Unit Ready */
|
|
if (iop->cmnd[0] == 0x00)
|
|
return true;
|
|
if (iop->cmnd[0] == 0x85 && iop->cmnd[1] == 0x06) {
|
|
if(report > 0)
|
|
pout("Rejecting SMART/ATA command to controller\n");
|
|
// Emulate SMART STATUS CHECK drive reply
|
|
// smartctl fail to work without this
|
|
if(iop->cmnd[2]==0x2c) {
|
|
iop->resp_sense_len=22;
|
|
iop->sensep[0]=0x72; // response code
|
|
iop->sensep[7]=0x0e; // no idea what it is, copied from sat device answer
|
|
iop->sensep[8]=0x09; //
|
|
iop->sensep[17]=0x4f; // lm
|
|
iop->sensep[19]=0xc2; // lh
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (pt_cmd == NULL)
|
|
return false;
|
|
return (this->*pt_cmd)(iop->cmnd_len, iop->cmnd,
|
|
iop->dxfer_len, iop->dxferp,
|
|
iop->max_sense_len, iop->sensep, report);
|
|
}
|
|
|
|
/* Issue passthrough scsi command to PERC5/6 controllers */
|
|
bool linux_megaraid_device::megasas_cmd(int cdbLen, void *cdb,
|
|
int dataLen, void *data,
|
|
int /*senseLen*/, void * /*sense*/, int /*report*/)
|
|
{
|
|
struct megasas_pthru_frame *pthru;
|
|
struct megasas_iocpacket uio;
|
|
int rc;
|
|
|
|
memset(&uio, 0, sizeof(uio));
|
|
pthru = (struct megasas_pthru_frame *)uio.frame.raw;
|
|
pthru->cmd = MFI_CMD_PD_SCSI_IO;
|
|
pthru->cmd_status = 0xFF;
|
|
pthru->scsi_status = 0x0;
|
|
pthru->target_id = m_disknum;
|
|
pthru->lun = 0;
|
|
pthru->cdb_len = cdbLen;
|
|
pthru->timeout = 0;
|
|
pthru->flags = MFI_FRAME_DIR_READ;
|
|
pthru->sge_count = 1;
|
|
pthru->data_xfer_len = dataLen;
|
|
pthru->sgl.sge32[0].phys_addr = (intptr_t)data;
|
|
pthru->sgl.sge32[0].length = (uint32_t)dataLen;
|
|
memcpy(pthru->cdb, cdb, cdbLen);
|
|
|
|
uio.host_no = m_hba;
|
|
uio.sge_count = 1;
|
|
uio.sgl_off = offsetof(struct megasas_pthru_frame, sgl);
|
|
uio.sgl[0].iov_base = data;
|
|
uio.sgl[0].iov_len = dataLen;
|
|
|
|
rc = 0;
|
|
errno = 0;
|
|
rc = ioctl(m_fd, MEGASAS_IOC_FIRMWARE, &uio);
|
|
if (pthru->cmd_status || rc != 0) {
|
|
if (pthru->cmd_status == 12) {
|
|
return set_err(EIO, "megasas_cmd: Device %d does not exist\n", m_disknum);
|
|
}
|
|
return set_err((errno ? errno : EIO), "megasas_cmd result: %d.%d = %d/%d",
|
|
m_hba, m_disknum, errno,
|
|
pthru->cmd_status);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* Issue passthrough scsi commands to PERC2/3/4 controllers */
|
|
bool linux_megaraid_device::megadev_cmd(int cdbLen, void *cdb,
|
|
int dataLen, void *data,
|
|
int senseLen, void *sense, int /*report*/)
|
|
{
|
|
struct uioctl_t uio;
|
|
int rc;
|
|
|
|
sense = NULL;
|
|
senseLen = 0;
|
|
|
|
/* Don't issue to the controller */
|
|
if (m_disknum == 7)
|
|
return false;
|
|
|
|
memset(&uio, 0, sizeof(uio));
|
|
uio.inlen = dataLen;
|
|
uio.outlen = dataLen;
|
|
|
|
memset(data, 0, dataLen);
|
|
uio.ui.fcs.opcode = 0x80; // M_RD_IOCTL_CMD
|
|
uio.ui.fcs.adapno = MKADAP(m_hba);
|
|
|
|
uio.data.pointer = (uint8_t *)data;
|
|
|
|
uio.mbox.cmd = MEGA_MBOXCMD_PASSTHRU;
|
|
uio.mbox.xferaddr = (intptr_t)&uio.pthru;
|
|
|
|
uio.pthru.ars = 1;
|
|
uio.pthru.timeout = 2;
|
|
uio.pthru.channel = 0;
|
|
uio.pthru.target = m_disknum;
|
|
uio.pthru.cdblen = cdbLen;
|
|
uio.pthru.reqsenselen = MAX_REQ_SENSE_LEN;
|
|
uio.pthru.dataxferaddr = (intptr_t)data;
|
|
uio.pthru.dataxferlen = dataLen;
|
|
memcpy(uio.pthru.cdb, cdb, cdbLen);
|
|
|
|
rc=ioctl(m_fd, MEGAIOCCMD, &uio);
|
|
if (uio.pthru.scsistatus || rc != 0) {
|
|
return set_err((errno ? errno : EIO), "megadev_cmd result: %d.%d = %d/%d",
|
|
m_hba, m_disknum, errno,
|
|
uio.pthru.scsistatus);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// CCISS RAID support
|
|
|
|
#ifdef HAVE_LINUX_CCISS_IOCTL_H
|
|
|
|
class linux_cciss_device
|
|
: public /*implements*/ scsi_device,
|
|
public /*extends*/ linux_smart_device
|
|
{
|
|
public:
|
|
linux_cciss_device(smart_interface * intf, const char * name, unsigned char disknum);
|
|
|
|
virtual bool scsi_pass_through(scsi_cmnd_io * iop);
|
|
|
|
private:
|
|
unsigned char m_disknum; ///< Disk number.
|
|
};
|
|
|
|
linux_cciss_device::linux_cciss_device(smart_interface * intf,
|
|
const char * dev_name, unsigned char disknum)
|
|
: smart_device(intf, dev_name, "cciss", "cciss"),
|
|
linux_smart_device(O_RDWR | O_NONBLOCK),
|
|
m_disknum(disknum)
|
|
{
|
|
set_info().info_name = strprintf("%s [cciss_disk_%02d]", dev_name, disknum);
|
|
}
|
|
|
|
bool linux_cciss_device::scsi_pass_through(scsi_cmnd_io * iop)
|
|
{
|
|
int status = cciss_io_interface(get_fd(), m_disknum, iop, con->reportscsiioctl);
|
|
if (status < 0)
|
|
return set_err(-status);
|
|
return true;
|
|
}
|
|
|
|
#endif // HAVE_LINUX_CCISS_IOCTL_H
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// AMCC/3ware RAID support
|
|
|
|
class linux_escalade_device
|
|
: public /*implements*/ ata_device,
|
|
public /*extends*/ linux_smart_device
|
|
{
|
|
public:
|
|
enum escalade_type_t {
|
|
AMCC_3WARE_678K,
|
|
AMCC_3WARE_678K_CHAR,
|
|
AMCC_3WARE_9000_CHAR
|
|
};
|
|
|
|
linux_escalade_device(smart_interface * intf, const char * dev_name,
|
|
escalade_type_t escalade_type, int disknum);
|
|
|
|
virtual bool open();
|
|
|
|
virtual bool ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out);
|
|
|
|
private:
|
|
escalade_type_t m_escalade_type; ///< Controller type
|
|
int m_disknum; ///< Disk number.
|
|
};
|
|
|
|
linux_escalade_device::linux_escalade_device(smart_interface * intf, const char * dev_name,
|
|
escalade_type_t escalade_type, int disknum)
|
|
: smart_device(intf, dev_name, "3ware", "3ware"),
|
|
linux_smart_device(O_RDONLY | O_NONBLOCK),
|
|
m_escalade_type(escalade_type), m_disknum(disknum)
|
|
{
|
|
set_info().info_name = strprintf("%s [3ware_disk_%02d]", dev_name, disknum);
|
|
}
|
|
|
|
/* This function will setup and fix device nodes for a 3ware controller. */
|
|
#define MAJOR_STRING_LENGTH 3
|
|
#define DEVICE_STRING_LENGTH 32
|
|
#define NODE_STRING_LENGTH 16
|
|
int setup_3ware_nodes(const char *nodename, const char *driver_name) {
|
|
int tw_major = 0;
|
|
int index = 0;
|
|
char majorstring[MAJOR_STRING_LENGTH+1];
|
|
char device_name[DEVICE_STRING_LENGTH+1];
|
|
char nodestring[NODE_STRING_LENGTH];
|
|
struct stat stat_buf;
|
|
FILE *file;
|
|
int retval = 0;
|
|
#ifdef WITH_SELINUX
|
|
security_context_t orig_context = NULL;
|
|
security_context_t node_context = NULL;
|
|
int selinux_enabled = is_selinux_enabled();
|
|
int selinux_enforced = security_getenforce();
|
|
#endif
|
|
|
|
|
|
/* First try to open up /proc/devices */
|
|
if (!(file = fopen("/proc/devices", "r"))) {
|
|
pout("Error opening /proc/devices to check/create 3ware device nodes\n");
|
|
syserror("fopen");
|
|
return 0; // don't fail here: user might not have /proc !
|
|
}
|
|
|
|
/* Attempt to get device major number */
|
|
while (EOF != fscanf(file, "%3s %32s", majorstring, device_name)) {
|
|
majorstring[MAJOR_STRING_LENGTH]='\0';
|
|
device_name[DEVICE_STRING_LENGTH]='\0';
|
|
if (!strncmp(device_name, nodename, DEVICE_STRING_LENGTH)) {
|
|
tw_major = atoi(majorstring);
|
|
break;
|
|
}
|
|
}
|
|
fclose(file);
|
|
|
|
/* See if we found a major device number */
|
|
if (!tw_major) {
|
|
pout("No major number for /dev/%s listed in /proc/devices. Is the %s driver loaded?\n", nodename, driver_name);
|
|
return 2;
|
|
}
|
|
#ifdef WITH_SELINUX
|
|
/* Prepare a database of contexts for files in /dev
|
|
* and save the current context */
|
|
if (selinux_enabled) {
|
|
if (matchpathcon_init_prefix(NULL, "/dev") < 0)
|
|
pout("Error initializing contexts database for /dev");
|
|
if (getfscreatecon(&orig_context) < 0) {
|
|
pout("Error retrieving original SELinux fscreate context");
|
|
if (selinux_enforced)
|
|
matchpathcon_fini();
|
|
return 6;
|
|
}
|
|
}
|
|
#endif
|
|
/* Now check if nodes are correct */
|
|
for (index=0; index<16; index++) {
|
|
sprintf(nodestring, "/dev/%s%d", nodename, index);
|
|
#ifdef WITH_SELINUX
|
|
/* Get context of the node and set it as the default */
|
|
if (selinux_enabled) {
|
|
if (matchpathcon(nodestring, S_IRUSR | S_IWUSR, &node_context) < 0) {
|
|
pout("Could not retrieve context for %s", nodestring);
|
|
if (selinux_enforced) {
|
|
retval = 6;
|
|
break;
|
|
}
|
|
}
|
|
if (setfscreatecon(node_context) < 0) {
|
|
pout ("Error setting default fscreate context");
|
|
if (selinux_enforced) {
|
|
retval = 6;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
/* Try to stat the node */
|
|
if ((stat(nodestring, &stat_buf))) {
|
|
pout("Node %s does not exist and must be created. Check the udev rules.\n", nodestring);
|
|
/* Create a new node if it doesn't exist */
|
|
if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) {
|
|
pout("problem creating 3ware device nodes %s", nodestring);
|
|
syserror("mknod");
|
|
retval = 3;
|
|
break;
|
|
} else {
|
|
#ifdef WITH_SELINUX
|
|
if (selinux_enabled && node_context) {
|
|
freecon(node_context);
|
|
node_context = NULL;
|
|
}
|
|
#endif
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* See if nodes major and minor numbers are correct */
|
|
if ((tw_major != (int)(major(stat_buf.st_rdev))) ||
|
|
(index != (int)(minor(stat_buf.st_rdev))) ||
|
|
(!S_ISCHR(stat_buf.st_mode))) {
|
|
pout("Node %s has wrong major/minor number and must be created anew."
|
|
" Check the udev rules.\n", nodestring);
|
|
/* Delete the old node */
|
|
if (unlink(nodestring)) {
|
|
pout("problem unlinking stale 3ware device node %s", nodestring);
|
|
syserror("unlink");
|
|
retval = 4;
|
|
break;
|
|
}
|
|
|
|
/* Make a new node */
|
|
if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) {
|
|
pout("problem creating 3ware device nodes %s", nodestring);
|
|
syserror("mknod");
|
|
retval = 5;
|
|
break;
|
|
}
|
|
}
|
|
#ifdef WITH_SELINUX
|
|
if (selinux_enabled && node_context) {
|
|
freecon(node_context);
|
|
node_context = NULL;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifdef WITH_SELINUX
|
|
if (selinux_enabled) {
|
|
if(setfscreatecon(orig_context) < 0) {
|
|
pout("Error re-setting original fscreate context");
|
|
if (selinux_enforced)
|
|
retval = 6;
|
|
}
|
|
if(orig_context)
|
|
freecon(orig_context);
|
|
if(node_context)
|
|
freecon(node_context);
|
|
matchpathcon_fini();
|
|
}
|
|
#endif
|
|
return retval;
|
|
}
|
|
|
|
bool linux_escalade_device::open()
|
|
{
|
|
if (m_escalade_type == AMCC_3WARE_9000_CHAR || m_escalade_type == AMCC_3WARE_678K_CHAR) {
|
|
// the device nodes for these controllers are dynamically assigned,
|
|
// so we need to check that they exist with the correct major
|
|
// numbers and if not, create them
|
|
const char * node = (m_escalade_type == AMCC_3WARE_9000_CHAR ? "twa" : "twe" );
|
|
const char * driver = (m_escalade_type == AMCC_3WARE_9000_CHAR ? "3w-9xxx": "3w-xxxx");
|
|
if (setup_3ware_nodes(node, driver))
|
|
return set_err((errno ? errno : ENXIO), "setup_3ware_nodes(\"%s\", \"%s\") failed", node, driver);
|
|
}
|
|
// Continue with default open
|
|
return linux_smart_device::open();
|
|
}
|
|
|
|
// TODO: Function no longer useful
|
|
//void printwarning(smart_command_set command);
|
|
|
|
// PURPOSE
|
|
// This is an interface routine meant to isolate the OS dependent
|
|
// parts of the code, and to provide a debugging interface. Each
|
|
// different port and OS needs to provide it's own interface. This
|
|
// is the linux interface to the 3ware 3w-xxxx driver. It allows ATA
|
|
// commands to be passed through the SCSI driver.
|
|
// DETAILED DESCRIPTION OF ARGUMENTS
|
|
// fd: is the file descriptor provided by open()
|
|
// disknum is the disk number (0 to 15) in the RAID array
|
|
// escalade_type indicates the type of controller type, and if scsi or char interface is used
|
|
// command: defines the different operations.
|
|
// select: additional input data if needed (which log, which type of
|
|
// self-test).
|
|
// data: location to write output data, if needed (512 bytes).
|
|
// Note: not all commands use all arguments.
|
|
// RETURN VALUES
|
|
// -1 if the command failed
|
|
// 0 if the command succeeded,
|
|
// STATUS_CHECK routine:
|
|
// -1 if the command failed
|
|
// 0 if the command succeeded and disk SMART status is "OK"
|
|
// 1 if the command succeeded and disk SMART status is "FAILING"
|
|
|
|
|
|
/* 512 is the max payload size: increase if needed */
|
|
#define BUFFER_LEN_678K ( sizeof(TW_Ioctl) ) // 1044 unpacked, 1041 packed
|
|
#define BUFFER_LEN_678K_CHAR ( sizeof(TW_New_Ioctl)+512-1 ) // 1539 unpacked, 1536 packed
|
|
#define BUFFER_LEN_9000 ( sizeof(TW_Ioctl_Buf_Apache)+512-1 ) // 2051 unpacked, 2048 packed
|
|
#define TW_IOCTL_BUFFER_SIZE ( MAX(MAX(BUFFER_LEN_678K, BUFFER_LEN_9000), BUFFER_LEN_678K_CHAR) )
|
|
|
|
bool linux_escalade_device::ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out)
|
|
{
|
|
if (!ata_cmd_is_ok(in,
|
|
true, // data_out_support
|
|
false, // TODO: multi_sector_support
|
|
true) // ata_48bit_support
|
|
)
|
|
return false;
|
|
|
|
// Used by both the SCSI and char interfaces
|
|
TW_Passthru *passthru=NULL;
|
|
char ioctl_buffer[TW_IOCTL_BUFFER_SIZE];
|
|
|
|
// only used for SCSI device interface
|
|
TW_Ioctl *tw_ioctl=NULL;
|
|
TW_Output *tw_output=NULL;
|
|
|
|
// only used for 6000/7000/8000 char device interface
|
|
TW_New_Ioctl *tw_ioctl_char=NULL;
|
|
|
|
// only used for 9000 character device interface
|
|
TW_Ioctl_Buf_Apache *tw_ioctl_apache=NULL;
|
|
|
|
memset(ioctl_buffer, 0, TW_IOCTL_BUFFER_SIZE);
|
|
|
|
// TODO: Handle controller differences by different classes
|
|
if (m_escalade_type==AMCC_3WARE_9000_CHAR) {
|
|
tw_ioctl_apache = (TW_Ioctl_Buf_Apache *)ioctl_buffer;
|
|
tw_ioctl_apache->driver_command.control_code = TW_IOCTL_FIRMWARE_PASS_THROUGH;
|
|
tw_ioctl_apache->driver_command.buffer_length = 512; /* payload size */
|
|
passthru = (TW_Passthru *)&(tw_ioctl_apache->firmware_command.command.oldcommand);
|
|
}
|
|
else if (m_escalade_type==AMCC_3WARE_678K_CHAR) {
|
|
tw_ioctl_char = (TW_New_Ioctl *)ioctl_buffer;
|
|
tw_ioctl_char->data_buffer_length = 512;
|
|
passthru = (TW_Passthru *)&(tw_ioctl_char->firmware_command);
|
|
}
|
|
else if (m_escalade_type==AMCC_3WARE_678K) {
|
|
tw_ioctl = (TW_Ioctl *)ioctl_buffer;
|
|
tw_ioctl->cdb[0] = TW_IOCTL;
|
|
tw_ioctl->opcode = TW_ATA_PASSTHRU;
|
|
tw_ioctl->input_length = 512; // correct even for non-data commands
|
|
tw_ioctl->output_length = 512; // correct even for non-data commands
|
|
tw_output = (TW_Output *)tw_ioctl;
|
|
passthru = (TW_Passthru *)&(tw_ioctl->input_data);
|
|
}
|
|
else {
|
|
return set_err(ENOSYS,
|
|
"Unrecognized escalade_type %d in linux_3ware_command_interface(disk %d)\n"
|
|
"Please contact " PACKAGE_BUGREPORT "\n", (int)m_escalade_type, m_disknum);
|
|
}
|
|
|
|
// Same for (almost) all commands - but some reset below
|
|
passthru->byte0.opcode = TW_OP_ATA_PASSTHRU;
|
|
passthru->request_id = 0xFF;
|
|
passthru->unit = m_disknum;
|
|
passthru->status = 0;
|
|
passthru->flags = 0x1;
|
|
|
|
// Set registers
|
|
{
|
|
const ata_in_regs_48bit & r = in.in_regs;
|
|
passthru->features = r.features_16;
|
|
passthru->sector_count = r.sector_count_16;
|
|
passthru->sector_num = r.lba_low_16;
|
|
passthru->cylinder_lo = r.lba_mid_16;
|
|
passthru->cylinder_hi = r.lba_high_16;
|
|
passthru->drive_head = r.device;
|
|
passthru->command = r.command;
|
|
}
|
|
|
|
// Is this a command that reads or returns 512 bytes?
|
|
// passthru->param values are:
|
|
// 0x0 - non data command without TFR write check,
|
|
// 0x8 - non data command with TFR write check,
|
|
// 0xD - data command that returns data to host from device
|
|
// 0xF - data command that writes data from host to device
|
|
// passthru->size values are 0x5 for non-data and 0x07 for data
|
|
bool readdata = false;
|
|
if (in.direction == ata_cmd_in::data_in) {
|
|
readdata=true;
|
|
passthru->byte0.sgloff = 0x5;
|
|
passthru->size = 0x7; // TODO: Other value for multi-sector ?
|
|
passthru->param = 0xD;
|
|
// For 64-bit to work correctly, up the size of the command packet
|
|
// in dwords by 1 to account for the 64-bit single sgl 'address'
|
|
// field. Note that this doesn't agree with the typedefs but it's
|
|
// right (agree with kernel driver behavior/typedefs).
|
|
if (m_escalade_type==AMCC_3WARE_9000_CHAR && sizeof(long)==8)
|
|
passthru->size++;
|
|
}
|
|
else if (in.direction == ata_cmd_in::no_data) {
|
|
// Non data command -- but doesn't use large sector
|
|
// count register values.
|
|
passthru->byte0.sgloff = 0x0;
|
|
passthru->size = 0x5;
|
|
passthru->param = 0x8;
|
|
passthru->sector_count = 0x0;
|
|
}
|
|
else if (in.direction == ata_cmd_in::data_out) {
|
|
if (m_escalade_type == AMCC_3WARE_9000_CHAR)
|
|
memcpy(tw_ioctl_apache->data_buffer, in.buffer, in.size);
|
|
else if (m_escalade_type == AMCC_3WARE_678K_CHAR)
|
|
memcpy(tw_ioctl_char->data_buffer, in.buffer, in.size);
|
|
else {
|
|
// COMMAND NOT SUPPORTED VIA SCSI IOCTL INTERFACE
|
|
// memcpy(tw_output->output_data, data, 512);
|
|
// printwarning(command); // TODO: Parameter no longer valid
|
|
return set_err(ENOTSUP, "DATA OUT not supported for this 3ware controller type");
|
|
}
|
|
passthru->byte0.sgloff = 0x5;
|
|
passthru->size = 0x7; // TODO: Other value for multi-sector ?
|
|
passthru->param = 0xF; // PIO data write
|
|
if (m_escalade_type==AMCC_3WARE_9000_CHAR && sizeof(long)==8)
|
|
passthru->size++;
|
|
}
|
|
else
|
|
set_err(EINVAL);
|
|
|
|
// Now send the command down through an ioctl()
|
|
int ioctlreturn;
|
|
if (m_escalade_type==AMCC_3WARE_9000_CHAR)
|
|
ioctlreturn=ioctl(get_fd(), TW_IOCTL_FIRMWARE_PASS_THROUGH, tw_ioctl_apache);
|
|
else if (m_escalade_type==AMCC_3WARE_678K_CHAR)
|
|
ioctlreturn=ioctl(get_fd(), TW_CMD_PACKET_WITH_DATA, tw_ioctl_char);
|
|
else
|
|
ioctlreturn=ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND, tw_ioctl);
|
|
|
|
// Deal with the different error cases
|
|
if (ioctlreturn) {
|
|
if (AMCC_3WARE_678K==m_escalade_type
|
|
&& in.in_regs.command==ATA_SMART_CMD
|
|
&& ( in.in_regs.features == ATA_SMART_AUTO_OFFLINE
|
|
|| in.in_regs.features == ATA_SMART_AUTOSAVE )
|
|
&& in.in_regs.lba_low) {
|
|
// error here is probably a kernel driver whose version is too old
|
|
// printwarning(command); // TODO: Parameter no longer valid
|
|
return set_err(ENOTSUP, "Probably kernel driver too old");
|
|
}
|
|
return set_err(EIO);
|
|
}
|
|
|
|
// The passthru structure is valid after return from an ioctl if:
|
|
// - we are using the character interface OR
|
|
// - we are using the SCSI interface and this is a NON-READ-DATA command
|
|
// For SCSI interface, note that we set passthru to a different
|
|
// value after ioctl().
|
|
if (AMCC_3WARE_678K==m_escalade_type) {
|
|
if (readdata)
|
|
passthru=NULL;
|
|
else
|
|
passthru=(TW_Passthru *)&(tw_output->output_data);
|
|
}
|
|
|
|
// See if the ATA command failed. Now that we have returned from
|
|
// the ioctl() call, if passthru is valid, then:
|
|
// - passthru->status contains the 3ware controller STATUS
|
|
// - passthru->command contains the ATA STATUS register
|
|
// - passthru->features contains the ATA ERROR register
|
|
//
|
|
// Check bits 0 (error bit) and 5 (device fault) of the ATA STATUS
|
|
// If bit 0 (error bit) is set, then ATA ERROR register is valid.
|
|
// While we *might* decode the ATA ERROR register, at the moment it
|
|
// doesn't make much sense: we don't care in detail why the error
|
|
// happened.
|
|
|
|
if (passthru && (passthru->status || (passthru->command & 0x21))) {
|
|
return set_err(EIO);
|
|
}
|
|
|
|
// If this is a read data command, copy data to output buffer
|
|
if (readdata) {
|
|
if (m_escalade_type==AMCC_3WARE_9000_CHAR)
|
|
memcpy(in.buffer, tw_ioctl_apache->data_buffer, in.size);
|
|
else if (m_escalade_type==AMCC_3WARE_678K_CHAR)
|
|
memcpy(in.buffer, tw_ioctl_char->data_buffer, in.size);
|
|
else
|
|
memcpy(in.buffer, tw_output->output_data, in.size);
|
|
}
|
|
|
|
// Return register values
|
|
{
|
|
ata_out_regs_48bit & r = out.out_regs;
|
|
r.error = passthru->features;
|
|
r.sector_count_16 = passthru->sector_count;
|
|
r.lba_low_16 = passthru->sector_num;
|
|
r.lba_mid_16 = passthru->cylinder_lo;
|
|
r.lba_high_16 = passthru->cylinder_hi;
|
|
r.device = passthru->drive_head;
|
|
r.status = passthru->command;
|
|
}
|
|
|
|
// look for nonexistent devices/ports
|
|
if ( in.in_regs.command == ATA_IDENTIFY_DEVICE
|
|
&& !nonempty((unsigned char *)in.buffer, in.size)) {
|
|
return set_err(ENODEV, "No drive on port %d", m_disknum);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// Areca RAID support
|
|
|
|
class linux_areca_device
|
|
: public /*implements*/ ata_device_with_command_set,
|
|
public /*extends*/ linux_smart_device
|
|
{
|
|
public:
|
|
linux_areca_device(smart_interface * intf, const char * dev_name, int disknum);
|
|
|
|
protected:
|
|
virtual int ata_command_interface(smart_command_set command, int select, char * data);
|
|
|
|
private:
|
|
int m_disknum; ///< Disk number.
|
|
};
|
|
|
|
|
|
// PURPOSE
|
|
// This is an interface routine meant to isolate the OS dependent
|
|
// parts of the code, and to provide a debugging interface. Each
|
|
// different port and OS needs to provide it's own interface. This
|
|
// is the linux interface to the Areca "arcmsr" driver. It allows ATA
|
|
// commands to be passed through the SCSI driver.
|
|
// DETAILED DESCRIPTION OF ARGUMENTS
|
|
// fd: is the file descriptor provided by open()
|
|
// disknum is the disk number (0 to 15) in the RAID array
|
|
// command: defines the different operations.
|
|
// select: additional input data if needed (which log, which type of
|
|
// self-test).
|
|
// data: location to write output data, if needed (512 bytes).
|
|
// Note: not all commands use all arguments.
|
|
// RETURN VALUES
|
|
// -1 if the command failed
|
|
// 0 if the command succeeded,
|
|
// STATUS_CHECK routine:
|
|
// -1 if the command failed
|
|
// 0 if the command succeeded and disk SMART status is "OK"
|
|
// 1 if the command succeeded and disk SMART status is "FAILING"
|
|
|
|
|
|
/*DeviceType*/
|
|
#define ARECA_SATA_RAID 0x90000000
|
|
/*FunctionCode*/
|
|
#define FUNCTION_READ_RQBUFFER 0x0801
|
|
#define FUNCTION_WRITE_WQBUFFER 0x0802
|
|
#define FUNCTION_CLEAR_RQBUFFER 0x0803
|
|
#define FUNCTION_CLEAR_WQBUFFER 0x0804
|
|
|
|
/* ARECA IO CONTROL CODE*/
|
|
#define ARCMSR_IOCTL_READ_RQBUFFER (ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER)
|
|
#define ARCMSR_IOCTL_WRITE_WQBUFFER (ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER)
|
|
#define ARCMSR_IOCTL_CLEAR_RQBUFFER (ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER)
|
|
#define ARCMSR_IOCTL_CLEAR_WQBUFFER (ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER)
|
|
#define ARECA_SIG_STR "ARCMSR"
|
|
|
|
// The SRB_IO_CONTROL & SRB_BUFFER structures are used to communicate(to/from) to areca driver
|
|
typedef struct _SRB_IO_CONTROL
|
|
{
|
|
unsigned int HeaderLength;
|
|
unsigned char Signature[8];
|
|
unsigned int Timeout;
|
|
unsigned int ControlCode;
|
|
unsigned int ReturnCode;
|
|
unsigned int Length;
|
|
} sSRB_IO_CONTROL;
|
|
|
|
typedef struct _SRB_BUFFER
|
|
{
|
|
sSRB_IO_CONTROL srbioctl;
|
|
unsigned char ioctldatabuffer[1032]; // the buffer to put the command data to/from firmware
|
|
} sSRB_BUFFER;
|
|
|
|
// Looks in /proc/scsi to suggest correct areca devices
|
|
// If hint not NULL, return device path guess
|
|
int find_areca_in_proc(char *hint) {
|
|
|
|
const char* proc_format_string="host\tchan\tid\tlun\ttype\topens\tqdepth\tbusy\tonline\n";
|
|
|
|
// check data formwat
|
|
FILE *fp=fopen("/proc/scsi/sg/device_hdr", "r");
|
|
if (!fp) {
|
|
pout("Unable to open /proc/scsi/sg/device_hdr for reading\n");
|
|
return 1;
|
|
}
|
|
|
|
// get line, compare to format
|
|
char linebuf[256];
|
|
linebuf[255]='\0';
|
|
char *out = fgets(linebuf, 256, fp);
|
|
fclose(fp);
|
|
if (!out) {
|
|
pout("Unable to read contents of /proc/scsi/sg/device_hdr\n");
|
|
return 2;
|
|
}
|
|
|
|
if (strcmp(linebuf, proc_format_string)) {
|
|
// wrong format!
|
|
// Fix this by comparing only tokens not white space!!
|
|
pout("Unexpected format %s in /proc/scsi/sg/device_hdr\n", proc_format_string);
|
|
return 3;
|
|
}
|
|
|
|
// Format is understood, now search for correct device
|
|
fp=fopen("/proc/scsi/sg/devices", "r");
|
|
if (!fp) return 1;
|
|
int host, chan, id, lun, type, opens, qdepth, busy, online;
|
|
int dev=-1;
|
|
int found=0;
|
|
// search all lines of /proc/scsi/sg/devices
|
|
while (9 == fscanf(fp, "%d %d %d %d %d %d %d %d %d", &host, &chan, &id, &lun, &type, &opens, &qdepth, &busy, &online)) {
|
|
dev++;
|
|
if (id == 16 && type == 3) {
|
|
// devices with id=16 and type=3 might be Areca controllers
|
|
if (!found && hint) {
|
|
sprintf(hint, "/dev/sg%d", dev);
|
|
}
|
|
pout("Device /dev/sg%d appears to be an Areca controller.\n", dev);
|
|
found++;
|
|
}
|
|
}
|
|
fclose(fp);
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
void dumpdata( unsigned char *block, int len)
|
|
{
|
|
int ln = (len / 16) + 1; // total line#
|
|
unsigned char c;
|
|
int pos = 0;
|
|
|
|
printf(" Address = %p, Length = (0x%x)%d\n", block, len, len);
|
|
printf(" 0 1 2 3 4 5 6 7 8 9 A B C D E F ASCII \n");
|
|
printf("=====================================================================\n");
|
|
|
|
for ( int l = 0; l < ln && len; l++ )
|
|
{
|
|
// printf the line# and the HEX data
|
|
// if a line data length < 16 then append the space to the tail of line to reach 16 chars
|
|
printf("%02X | ", l);
|
|
for ( pos = 0; pos < 16 && len; pos++, len-- )
|
|
{
|
|
c = block[l*16+pos];
|
|
printf("%02X ", c);
|
|
}
|
|
|
|
if ( pos < 16 )
|
|
{
|
|
for ( int loop = pos; loop < 16; loop++ )
|
|
{
|
|
printf(" ");
|
|
}
|
|
}
|
|
|
|
// print ASCII char
|
|
for ( int loop = 0; loop < pos; loop++ )
|
|
{
|
|
c = block[l*16+loop];
|
|
if ( c >= 0x20 && c <= 0x7F )
|
|
{
|
|
printf("%c", c);
|
|
}
|
|
else
|
|
{
|
|
printf(".");
|
|
}
|
|
}
|
|
printf("\n");
|
|
}
|
|
printf("=====================================================================\n");
|
|
}
|
|
|
|
|
|
|
|
int arcmsr_command_handler(int fd, unsigned long arcmsr_cmd, unsigned char *data, int data_len, void *ext_data /* reserved for further use */)
|
|
{
|
|
ARGUSED(ext_data);
|
|
|
|
int ioctlreturn = 0;
|
|
sSRB_BUFFER sBuf;
|
|
struct scsi_cmnd_io io_hdr;
|
|
int dir = DXFER_TO_DEVICE;
|
|
|
|
UINT8 cdb[10];
|
|
UINT8 sense[32];
|
|
|
|
unsigned char *areca_return_packet;
|
|
int total = 0;
|
|
int expected = -1;
|
|
unsigned char return_buff[2048];
|
|
unsigned char *ptr = &return_buff[0];
|
|
memset(return_buff, 0, sizeof(return_buff));
|
|
|
|
memset((unsigned char *)&sBuf, 0, sizeof(sBuf));
|
|
memset(&io_hdr, 0, sizeof(io_hdr));
|
|
memset(cdb, 0, sizeof(cdb));
|
|
memset(sense, 0, sizeof(sense));
|
|
|
|
|
|
sBuf.srbioctl.HeaderLength = sizeof(sSRB_IO_CONTROL);
|
|
memcpy(sBuf.srbioctl.Signature, ARECA_SIG_STR, strlen(ARECA_SIG_STR));
|
|
sBuf.srbioctl.Timeout = 10000;
|
|
sBuf.srbioctl.ControlCode = ARCMSR_IOCTL_READ_RQBUFFER;
|
|
|
|
switch ( arcmsr_cmd )
|
|
{
|
|
// command for writing data to driver
|
|
case ARCMSR_IOCTL_WRITE_WQBUFFER:
|
|
if ( data && data_len )
|
|
{
|
|
sBuf.srbioctl.Length = data_len;
|
|
memcpy((unsigned char *)sBuf.ioctldatabuffer, (unsigned char *)data, data_len);
|
|
}
|
|
// commands for clearing related buffer of driver
|
|
case ARCMSR_IOCTL_CLEAR_RQBUFFER:
|
|
case ARCMSR_IOCTL_CLEAR_WQBUFFER:
|
|
cdb[0] = 0x3B; //SCSI_WRITE_BUF command;
|
|
break;
|
|
// command for reading data from driver
|
|
case ARCMSR_IOCTL_READ_RQBUFFER:
|
|
cdb[0] = 0x3C; //SCSI_READ_BUF command;
|
|
dir = DXFER_FROM_DEVICE;
|
|
break;
|
|
default:
|
|
// unknown arcmsr commands
|
|
return -1;
|
|
}
|
|
|
|
cdb[1] = 0x01;
|
|
cdb[2] = 0xf0;
|
|
//
|
|
// cdb[5][6][7][8] areca defined command code( to/from driver )
|
|
//
|
|
cdb[5] = (char)( arcmsr_cmd >> 24);
|
|
cdb[6] = (char)( arcmsr_cmd >> 16);
|
|
cdb[7] = (char)( arcmsr_cmd >> 8);
|
|
cdb[8] = (char)( arcmsr_cmd & 0x0F );
|
|
|
|
io_hdr.dxfer_dir = dir;
|
|
io_hdr.dxfer_len = sizeof(sBuf);
|
|
io_hdr.dxferp = (unsigned char *)&sBuf;
|
|
io_hdr.cmnd = cdb;
|
|
io_hdr.cmnd_len = sizeof(cdb);
|
|
io_hdr.sensep = sense;
|
|
io_hdr.max_sense_len = sizeof(sense);
|
|
io_hdr.timeout = SCSI_TIMEOUT_DEFAULT;
|
|
|
|
while ( 1 )
|
|
{
|
|
ioctlreturn = do_normal_scsi_cmnd_io(fd, &io_hdr, 0);
|
|
if ( ioctlreturn || io_hdr.scsi_status )
|
|
{
|
|
// errors found
|
|
break;
|
|
}
|
|
|
|
if ( arcmsr_cmd != ARCMSR_IOCTL_READ_RQBUFFER )
|
|
{
|
|
// if succeeded, just returns the length of outgoing data
|
|
return data_len;
|
|
}
|
|
|
|
if ( sBuf.srbioctl.Length )
|
|
{
|
|
//dumpdata(&sBuf.ioctldatabuffer[0], sBuf.srbioctl.Length);
|
|
memcpy(ptr, &sBuf.ioctldatabuffer[0], sBuf.srbioctl.Length);
|
|
ptr += sBuf.srbioctl.Length;
|
|
total += sBuf.srbioctl.Length;
|
|
// the returned bytes enough to compute payload length ?
|
|
if ( expected < 0 && total >= 5 )
|
|
{
|
|
areca_return_packet = (unsigned char *)&return_buff[0];
|
|
if ( areca_return_packet[0] == 0x5E &&
|
|
areca_return_packet[1] == 0x01 &&
|
|
areca_return_packet[2] == 0x61 )
|
|
{
|
|
// valid header, let's compute the returned payload length,
|
|
// we expected the total length is
|
|
// payload + 3 bytes header + 2 bytes length + 1 byte checksum
|
|
expected = areca_return_packet[4] * 256 + areca_return_packet[3] + 6;
|
|
}
|
|
}
|
|
|
|
if ( total >= 7 && total >= expected )
|
|
{
|
|
//printf("total bytes received = %d, expected length = %d\n", total, expected);
|
|
|
|
// ------ Okay! we received enough --------
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Deal with the different error cases
|
|
if ( ioctlreturn )
|
|
{
|
|
printf("do_scsi_cmnd_io with write buffer failed code = %x\n", ioctlreturn);
|
|
return -2;
|
|
}
|
|
|
|
|
|
if ( io_hdr.scsi_status )
|
|
{
|
|
printf("io_hdr.scsi_status with write buffer failed code = %x\n", io_hdr.scsi_status);
|
|
return -3;
|
|
}
|
|
|
|
|
|
if ( data )
|
|
{
|
|
memcpy(data, return_buff, total);
|
|
}
|
|
|
|
return total;
|
|
}
|
|
|
|
|
|
linux_areca_device::linux_areca_device(smart_interface * intf, const char * dev_name, int disknum)
|
|
: smart_device(intf, dev_name, "areca", "areca"),
|
|
linux_smart_device(O_RDWR | O_EXCL | O_NONBLOCK),
|
|
m_disknum(disknum)
|
|
{
|
|
set_info().info_name = strprintf("%s [areca_%02d]", dev_name, disknum);
|
|
}
|
|
|
|
// Areca RAID Controller
|
|
int linux_areca_device::ata_command_interface(smart_command_set command, int select, char * data)
|
|
{
|
|
// ATA input registers
|
|
typedef struct _ATA_INPUT_REGISTERS
|
|
{
|
|
unsigned char features;
|
|
unsigned char sector_count;
|
|
unsigned char sector_number;
|
|
unsigned char cylinder_low;
|
|
unsigned char cylinder_high;
|
|
unsigned char device_head;
|
|
unsigned char command;
|
|
unsigned char reserved[8];
|
|
unsigned char data[512]; // [in/out] buffer for outgoing/incoming data
|
|
} sATA_INPUT_REGISTERS;
|
|
|
|
// ATA output registers
|
|
// Note: The output registers is re-sorted for areca internal use only
|
|
typedef struct _ATA_OUTPUT_REGISTERS
|
|
{
|
|
unsigned char error;
|
|
unsigned char status;
|
|
unsigned char sector_count;
|
|
unsigned char sector_number;
|
|
unsigned char cylinder_low;
|
|
unsigned char cylinder_high;
|
|
}sATA_OUTPUT_REGISTERS;
|
|
|
|
// Areca packet format for outgoing:
|
|
// B[0~2] : 3 bytes header, fixed value 0x5E, 0x01, 0x61
|
|
// B[3~4] : 2 bytes command length + variant data length, little endian
|
|
// B[5] : 1 bytes areca defined command code, ATA passthrough command code is 0x1c
|
|
// B[6~last-1] : variant bytes payload data
|
|
// B[last] : 1 byte checksum, simply sum(B[3] ~ B[last -1])
|
|
//
|
|
//
|
|
// header 3 bytes length 2 bytes cmd 1 byte payload data x bytes cs 1 byte
|
|
// +--------------------------------------------------------------------------------+
|
|
// + 0x5E 0x01 0x61 | 0x00 0x00 | 0x1c | .................... | 0x00 |
|
|
// +--------------------------------------------------------------------------------+
|
|
//
|
|
|
|
//Areca packet format for incoming:
|
|
// B[0~2] : 3 bytes header, fixed value 0x5E, 0x01, 0x61
|
|
// B[3~4] : 2 bytes payload length, little endian
|
|
// B[5~last-1] : variant bytes returned payload data
|
|
// B[last] : 1 byte checksum, simply sum(B[3] ~ B[last -1])
|
|
//
|
|
//
|
|
// header 3 bytes length 2 bytes payload data x bytes cs 1 byte
|
|
// +-------------------------------------------------------------------+
|
|
// + 0x5E 0x01 0x61 | 0x00 0x00 | .................... | 0x00 |
|
|
// +-------------------------------------------------------------------+
|
|
unsigned char areca_packet[640];
|
|
int areca_packet_len = sizeof(areca_packet);
|
|
unsigned char cs = 0;
|
|
|
|
sATA_INPUT_REGISTERS *ata_cmd;
|
|
|
|
// For debugging
|
|
#if 0
|
|
memset(sInq, 0, sizeof(sInq));
|
|
scsiStdInquiry(fd, (unsigned char *)sInq, (int)sizeof(sInq));
|
|
dumpdata((unsigned char *)sInq, sizeof(sInq));
|
|
#endif
|
|
memset(areca_packet, 0, areca_packet_len);
|
|
|
|
// ----- BEGIN TO SETUP HEADERS -------
|
|
areca_packet[0] = 0x5E;
|
|
areca_packet[1] = 0x01;
|
|
areca_packet[2] = 0x61;
|
|
areca_packet[3] = (unsigned char)((areca_packet_len - 6) & 0xff);
|
|
areca_packet[4] = (unsigned char)(((areca_packet_len - 6) >> 8) & 0xff);
|
|
areca_packet[5] = 0x1c; // areca defined code for ATA passthrough command
|
|
|
|
|
|
// ----- BEGIN TO SETUP PAYLOAD DATA -----
|
|
|
|
memcpy(&areca_packet[7], "SmrT", 4); // areca defined password
|
|
|
|
ata_cmd = (sATA_INPUT_REGISTERS *)&areca_packet[12];
|
|
ata_cmd->cylinder_low = 0x4F;
|
|
ata_cmd->cylinder_high = 0xC2;
|
|
|
|
|
|
if ( command == READ_VALUES ||
|
|
command == READ_THRESHOLDS ||
|
|
command == READ_LOG ||
|
|
command == IDENTIFY ||
|
|
command == PIDENTIFY )
|
|
{
|
|
// the commands will return data
|
|
areca_packet[6] = 0x13;
|
|
ata_cmd->sector_count = 0x1;
|
|
}
|
|
else if ( command == WRITE_LOG )
|
|
{
|
|
// the commands will write data
|
|
areca_packet[6] = 0x14;
|
|
}
|
|
else
|
|
{
|
|
// the commands will return no data
|
|
areca_packet[6] = 0x15;
|
|
}
|
|
|
|
|
|
ata_cmd->command = ATA_SMART_CMD;
|
|
// Now set ATA registers depending upon command
|
|
switch ( command )
|
|
{
|
|
case CHECK_POWER_MODE:
|
|
//printf("command = CHECK_POWER_MODE\n");
|
|
ata_cmd->command = ATA_CHECK_POWER_MODE;
|
|
break;
|
|
case READ_VALUES:
|
|
//printf("command = READ_VALUES\n");
|
|
ata_cmd->features = ATA_SMART_READ_VALUES;
|
|
break;
|
|
case READ_THRESHOLDS:
|
|
//printf("command = READ_THRESHOLDS\n");
|
|
ata_cmd->features = ATA_SMART_READ_THRESHOLDS;
|
|
break;
|
|
case READ_LOG:
|
|
//printf("command = READ_LOG\n");
|
|
ata_cmd->features = ATA_SMART_READ_LOG_SECTOR;
|
|
ata_cmd->sector_number = select;
|
|
break;
|
|
case WRITE_LOG:
|
|
//printf("command = WRITE_LOG\n");
|
|
ata_cmd->features = ATA_SMART_WRITE_LOG_SECTOR;
|
|
memcpy(ata_cmd->data, data, 512);
|
|
ata_cmd->sector_count = 1;
|
|
ata_cmd->sector_number = select;
|
|
break;
|
|
case IDENTIFY:
|
|
//printf("command = IDENTIFY\n");
|
|
ata_cmd->command = ATA_IDENTIFY_DEVICE;
|
|
break;
|
|
case PIDENTIFY:
|
|
//printf("command = PIDENTIFY\n");
|
|
errno=ENODEV;
|
|
return -1;
|
|
case ENABLE:
|
|
//printf("command = ENABLE\n");
|
|
ata_cmd->features = ATA_SMART_ENABLE;
|
|
break;
|
|
case DISABLE:
|
|
//printf("command = DISABLE\n");
|
|
ata_cmd->features = ATA_SMART_DISABLE;
|
|
break;
|
|
case AUTO_OFFLINE:
|
|
//printf("command = AUTO_OFFLINE\n");
|
|
ata_cmd->features = ATA_SMART_AUTO_OFFLINE;
|
|
// Enable or disable?
|
|
ata_cmd->sector_count = select;
|
|
break;
|
|
case AUTOSAVE:
|
|
//printf("command = AUTOSAVE\n");
|
|
ata_cmd->features = ATA_SMART_AUTOSAVE;
|
|
// Enable or disable?
|
|
ata_cmd->sector_count = select;
|
|
break;
|
|
case IMMEDIATE_OFFLINE:
|
|
//printf("command = IMMEDIATE_OFFLINE\n");
|
|
ata_cmd->features = ATA_SMART_IMMEDIATE_OFFLINE;
|
|
// What test type to run?
|
|
ata_cmd->sector_number = select;
|
|
break;
|
|
case STATUS_CHECK:
|
|
//printf("command = STATUS_CHECK\n");
|
|
ata_cmd->features = ATA_SMART_STATUS;
|
|
break;
|
|
case STATUS:
|
|
//printf("command = STATUS\n");
|
|
ata_cmd->features = ATA_SMART_STATUS;
|
|
break;
|
|
default:
|
|
//printf("command = UNKNOWN\n");
|
|
errno=ENOSYS;
|
|
return -1;
|
|
};
|
|
|
|
areca_packet[11] = m_disknum - 1; // drive number
|
|
|
|
// ----- BEGIN TO SETUP CHECKSUM -----
|
|
for ( int loop = 3; loop < areca_packet_len - 1; loop++ )
|
|
{
|
|
cs += areca_packet[loop];
|
|
}
|
|
areca_packet[areca_packet_len-1] = cs;
|
|
|
|
// ----- BEGIN TO SEND TO ARECA DRIVER ------
|
|
int expected = 0;
|
|
unsigned char return_buff[2048];
|
|
memset(return_buff, 0, sizeof(return_buff));
|
|
|
|
expected = arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_CLEAR_RQBUFFER, NULL, 0, NULL);
|
|
if (expected==-3) {
|
|
find_areca_in_proc(NULL);
|
|
return -1;
|
|
}
|
|
|
|
expected = arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_CLEAR_WQBUFFER, NULL, 0, NULL);
|
|
expected = arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_WRITE_WQBUFFER, areca_packet, areca_packet_len, NULL);
|
|
if ( expected > 0 )
|
|
{
|
|
expected = arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_READ_RQBUFFER, return_buff, sizeof(return_buff), NULL);
|
|
}
|
|
if ( expected < 0 )
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
// ----- VERIFY THE CHECKSUM -----
|
|
cs = 0;
|
|
for ( int loop = 3; loop < expected - 1; loop++ )
|
|
{
|
|
cs += return_buff[loop];
|
|
}
|
|
|
|
if ( return_buff[expected - 1] != cs )
|
|
{
|
|
errno = EIO;
|
|
return -1;
|
|
}
|
|
|
|
sATA_OUTPUT_REGISTERS *ata_out = (sATA_OUTPUT_REGISTERS *)&return_buff[5] ;
|
|
if ( ata_out->status )
|
|
{
|
|
if ( command == IDENTIFY )
|
|
{
|
|
pout("The firmware of your Areca RAID controller appears to be outdated!\n" \
|
|
"Please update your controller to firmware version 1.46 or later.\n" \
|
|
"You may download it here: ftp://ftp.areca.com.tw/RaidCards/BIOS_Firmware\n\n");
|
|
}
|
|
errno = EIO;
|
|
return -1;
|
|
}
|
|
|
|
// returns with data
|
|
if ( command == READ_VALUES ||
|
|
command == READ_THRESHOLDS ||
|
|
command == READ_LOG ||
|
|
command == IDENTIFY ||
|
|
command == PIDENTIFY )
|
|
{
|
|
memcpy(data, &return_buff[7], 512);
|
|
}
|
|
|
|
if ( command == CHECK_POWER_MODE )
|
|
{
|
|
data[0] = ata_out->sector_count;
|
|
}
|
|
|
|
if ( command == STATUS_CHECK &&
|
|
( ata_out->cylinder_low == 0xF4 && ata_out->cylinder_high == 0x2C ) )
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// Marvell support
|
|
|
|
class linux_marvell_device
|
|
: public /*implements*/ ata_device_with_command_set,
|
|
public /*extends*/ linux_smart_device
|
|
{
|
|
public:
|
|
linux_marvell_device(smart_interface * intf, const char * dev_name, const char * req_type);
|
|
|
|
protected:
|
|
virtual int ata_command_interface(smart_command_set command, int select, char * data);
|
|
};
|
|
|
|
linux_marvell_device::linux_marvell_device(smart_interface * intf,
|
|
const char * dev_name, const char * req_type)
|
|
: smart_device(intf, dev_name, "marvell", req_type),
|
|
linux_smart_device(O_RDONLY | O_NONBLOCK)
|
|
{
|
|
}
|
|
|
|
int linux_marvell_device::ata_command_interface(smart_command_set command, int select, char * data)
|
|
{
|
|
typedef struct {
|
|
int inlen;
|
|
int outlen;
|
|
char cmd[540];
|
|
} mvsata_scsi_cmd;
|
|
|
|
int copydata = 0;
|
|
mvsata_scsi_cmd smart_command;
|
|
unsigned char *buff = (unsigned char *)&smart_command.cmd[6];
|
|
// See struct hd_drive_cmd_hdr in hdreg.h
|
|
// buff[0]: ATA COMMAND CODE REGISTER
|
|
// buff[1]: ATA SECTOR NUMBER REGISTER
|
|
// buff[2]: ATA FEATURES REGISTER
|
|
// buff[3]: ATA SECTOR COUNT REGISTER
|
|
|
|
// clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes)
|
|
memset(&smart_command, 0, sizeof(smart_command));
|
|
smart_command.inlen = 540;
|
|
smart_command.outlen = 540;
|
|
smart_command.cmd[0] = 0xC; //Vendor-specific code
|
|
smart_command.cmd[4] = 6; //command length
|
|
|
|
buff[0] = ATA_SMART_CMD;
|
|
switch (command){
|
|
case CHECK_POWER_MODE:
|
|
buff[0]=ATA_CHECK_POWER_MODE;
|
|
break;
|
|
case READ_VALUES:
|
|
buff[2]=ATA_SMART_READ_VALUES;
|
|
copydata=buff[3]=1;
|
|
break;
|
|
case READ_THRESHOLDS:
|
|
buff[2]=ATA_SMART_READ_THRESHOLDS;
|
|
copydata=buff[1]=buff[3]=1;
|
|
break;
|
|
case READ_LOG:
|
|
buff[2]=ATA_SMART_READ_LOG_SECTOR;
|
|
buff[1]=select;
|
|
copydata=buff[3]=1;
|
|
break;
|
|
case IDENTIFY:
|
|
buff[0]=ATA_IDENTIFY_DEVICE;
|
|
copydata=buff[3]=1;
|
|
break;
|
|
case PIDENTIFY:
|
|
buff[0]=ATA_IDENTIFY_PACKET_DEVICE;
|
|
copydata=buff[3]=1;
|
|
break;
|
|
case ENABLE:
|
|
buff[2]=ATA_SMART_ENABLE;
|
|
buff[1]=1;
|
|
break;
|
|
case DISABLE:
|
|
buff[2]=ATA_SMART_DISABLE;
|
|
buff[1]=1;
|
|
break;
|
|
case STATUS:
|
|
case STATUS_CHECK:
|
|
// this command only says if SMART is working. It could be
|
|
// replaced with STATUS_CHECK below.
|
|
buff[2] = ATA_SMART_STATUS;
|
|
break;
|
|
case AUTO_OFFLINE:
|
|
buff[2]=ATA_SMART_AUTO_OFFLINE;
|
|
buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!!
|
|
break;
|
|
case AUTOSAVE:
|
|
buff[2]=ATA_SMART_AUTOSAVE;
|
|
buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!!
|
|
break;
|
|
case IMMEDIATE_OFFLINE:
|
|
buff[2]=ATA_SMART_IMMEDIATE_OFFLINE;
|
|
buff[1]=select;
|
|
break;
|
|
default:
|
|
pout("Unrecognized command %d in mvsata_os_specific_handler()\n", command);
|
|
EXIT(1);
|
|
break;
|
|
}
|
|
// There are two different types of ioctls(). The HDIO_DRIVE_TASK
|
|
// one is this:
|
|
// We are now doing the HDIO_DRIVE_CMD type ioctl.
|
|
if (ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND, (void *)&smart_command))
|
|
return -1;
|
|
|
|
if (command==CHECK_POWER_MODE) {
|
|
// LEON -- CHECK THIS PLEASE. THIS SHOULD BE THE SECTOR COUNT
|
|
// REGISTER, AND IT MIGHT BE buff[2] NOT buff[3]. Bruce
|
|
data[0]=buff[3];
|
|
return 0;
|
|
}
|
|
|
|
// Always succeed on a SMART status, as a disk that failed returned
|
|
// buff[4]=0xF4, buff[5]=0x2C, i.e. "Bad SMART status" (see below).
|
|
if (command == STATUS)
|
|
return 0;
|
|
//Data returned is starting from 0 offset
|
|
if (command == STATUS_CHECK)
|
|
{
|
|
// Cyl low and Cyl high unchanged means "Good SMART status"
|
|
if (buff[4] == 0x4F && buff[5] == 0xC2)
|
|
return 0;
|
|
// These values mean "Bad SMART status"
|
|
if (buff[4] == 0xF4 && buff[5] == 0x2C)
|
|
return 1;
|
|
// We haven't gotten output that makes sense; print out some debugging info
|
|
syserror("Error SMART Status command failed");
|
|
pout("Please get assistance from %s\n",PACKAGE_BUGREPORT);
|
|
pout("Register values returned from SMART Status command are:\n");
|
|
pout("CMD =0x%02x\n",(int)buff[0]);
|
|
pout("FR =0x%02x\n",(int)buff[1]);
|
|
pout("NS =0x%02x\n",(int)buff[2]);
|
|
pout("SC =0x%02x\n",(int)buff[3]);
|
|
pout("CL =0x%02x\n",(int)buff[4]);
|
|
pout("CH =0x%02x\n",(int)buff[5]);
|
|
pout("SEL=0x%02x\n",(int)buff[6]);
|
|
return -1;
|
|
}
|
|
|
|
if (copydata)
|
|
memcpy(data, buff, 512);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// Highpoint RAID support
|
|
|
|
class linux_highpoint_device
|
|
: public /*implements*/ ata_device_with_command_set,
|
|
public /*extends*/ linux_smart_device
|
|
{
|
|
public:
|
|
linux_highpoint_device(smart_interface * intf, const char * dev_name,
|
|
unsigned char controller, unsigned char channel, unsigned char port);
|
|
|
|
protected:
|
|
virtual int ata_command_interface(smart_command_set command, int select, char * data);
|
|
|
|
private:
|
|
unsigned char m_hpt_data[3]; ///< controller/channel/port
|
|
};
|
|
|
|
linux_highpoint_device::linux_highpoint_device(smart_interface * intf, const char * dev_name,
|
|
unsigned char controller, unsigned char channel, unsigned char port)
|
|
: smart_device(intf, dev_name, "hpt", "hpt"),
|
|
linux_smart_device(O_RDONLY | O_NONBLOCK)
|
|
{
|
|
m_hpt_data[0] = controller; m_hpt_data[1] = channel; m_hpt_data[2] = port;
|
|
set_info().info_name = strprintf("%s [hpt_disk_%u/%u/%u]", dev_name, m_hpt_data[0], m_hpt_data[1], m_hpt_data[2]);
|
|
}
|
|
|
|
// this implementation is derived from ata_command_interface with a header
|
|
// packing for highpoint linux driver ioctl interface
|
|
//
|
|
// ioctl(fd,HPTIO_CTL,buff)
|
|
// ^^^^^^^^^
|
|
//
|
|
// structure of hpt_buff
|
|
// +----+----+----+----+--------------------.....---------------------+
|
|
// | 1 | 2 | 3 | 4 | 5 |
|
|
// +----+----+----+----+--------------------.....---------------------+
|
|
//
|
|
// 1: The target controller [ int ( 4 Bytes ) ]
|
|
// 2: The channel of the target controllee [ int ( 4 Bytes ) ]
|
|
// 3: HDIO_ ioctl call [ int ( 4 Bytes ) ]
|
|
// available from ${LINUX_KERNEL_SOURCE}/Documentation/ioctl/hdio
|
|
// 4: the pmport that disk attached, [ int ( 4 Bytes ) ]
|
|
// if no pmport device, set to 1 or leave blank
|
|
// 5: data [ void * ( var leangth ) ]
|
|
//
|
|
#define STRANGE_BUFFER_LENGTH (4+512*0xf8)
|
|
|
|
int linux_highpoint_device::ata_command_interface(smart_command_set command, int select, char * data)
|
|
{
|
|
unsigned char hpt_buff[4*sizeof(int) + STRANGE_BUFFER_LENGTH];
|
|
unsigned int *hpt = (unsigned int *)hpt_buff;
|
|
unsigned char *buff = &hpt_buff[4*sizeof(int)];
|
|
int copydata = 0;
|
|
const int HDIO_DRIVE_CMD_OFFSET = 4;
|
|
|
|
memset(hpt_buff, 0, 4*sizeof(int) + STRANGE_BUFFER_LENGTH);
|
|
hpt[0] = m_hpt_data[0]; // controller id
|
|
hpt[1] = m_hpt_data[1]; // channel number
|
|
hpt[3] = m_hpt_data[2]; // pmport number
|
|
|
|
buff[0]=ATA_SMART_CMD;
|
|
switch (command){
|
|
case CHECK_POWER_MODE:
|
|
buff[0]=ATA_CHECK_POWER_MODE;
|
|
copydata=1;
|
|
break;
|
|
case READ_VALUES:
|
|
buff[2]=ATA_SMART_READ_VALUES;
|
|
buff[3]=1;
|
|
copydata=512;
|
|
break;
|
|
case READ_THRESHOLDS:
|
|
buff[2]=ATA_SMART_READ_THRESHOLDS;
|
|
buff[1]=buff[3]=1;
|
|
copydata=512;
|
|
break;
|
|
case READ_LOG:
|
|
buff[2]=ATA_SMART_READ_LOG_SECTOR;
|
|
buff[1]=select;
|
|
buff[3]=1;
|
|
copydata=512;
|
|
break;
|
|
case WRITE_LOG:
|
|
break;
|
|
case IDENTIFY:
|
|
buff[0]=ATA_IDENTIFY_DEVICE;
|
|
buff[3]=1;
|
|
copydata=512;
|
|
break;
|
|
case PIDENTIFY:
|
|
buff[0]=ATA_IDENTIFY_PACKET_DEVICE;
|
|
buff[3]=1;
|
|
copydata=512;
|
|
break;
|
|
case ENABLE:
|
|
buff[2]=ATA_SMART_ENABLE;
|
|
buff[1]=1;
|
|
break;
|
|
case DISABLE:
|
|
buff[2]=ATA_SMART_DISABLE;
|
|
buff[1]=1;
|
|
break;
|
|
case STATUS:
|
|
buff[2]=ATA_SMART_STATUS;
|
|
break;
|
|
case AUTO_OFFLINE:
|
|
buff[2]=ATA_SMART_AUTO_OFFLINE;
|
|
buff[3]=select;
|
|
break;
|
|
case AUTOSAVE:
|
|
buff[2]=ATA_SMART_AUTOSAVE;
|
|
buff[3]=select;
|
|
break;
|
|
case IMMEDIATE_OFFLINE:
|
|
buff[2]=ATA_SMART_IMMEDIATE_OFFLINE;
|
|
buff[1]=select;
|
|
break;
|
|
case STATUS_CHECK:
|
|
buff[1]=ATA_SMART_STATUS;
|
|
break;
|
|
default:
|
|
pout("Unrecognized command %d in linux_highpoint_command_interface()\n"
|
|
"Please contact " PACKAGE_BUGREPORT "\n", command);
|
|
errno=ENOSYS;
|
|
return -1;
|
|
}
|
|
|
|
if (command==WRITE_LOG) {
|
|
unsigned char task[4*sizeof(int)+sizeof(ide_task_request_t)+512];
|
|
unsigned int *hpt = (unsigned int *)task;
|
|
ide_task_request_t *reqtask = (ide_task_request_t *)(&task[4*sizeof(int)]);
|
|
task_struct_t *taskfile = (task_struct_t *)reqtask->io_ports;
|
|
int retval;
|
|
|
|
memset(task, 0, sizeof(task));
|
|
|
|
hpt[0] = m_hpt_data[0]; // controller id
|
|
hpt[1] = m_hpt_data[1]; // channel number
|
|
hpt[3] = m_hpt_data[2]; // pmport number
|
|
hpt[2] = HDIO_DRIVE_TASKFILE; // real hd ioctl
|
|
|
|
taskfile->data = 0;
|
|
taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR;
|
|
taskfile->sector_count = 1;
|
|
taskfile->sector_number = select;
|
|
taskfile->low_cylinder = 0x4f;
|
|
taskfile->high_cylinder = 0xc2;
|
|
taskfile->device_head = 0;
|
|
taskfile->command = ATA_SMART_CMD;
|
|
|
|
reqtask->data_phase = TASKFILE_OUT;
|
|
reqtask->req_cmd = IDE_DRIVE_TASK_OUT;
|
|
reqtask->out_size = 512;
|
|
reqtask->in_size = 0;
|
|
|
|
memcpy(task+sizeof(ide_task_request_t)+4*sizeof(int), data, 512);
|
|
|
|
if ((retval=ioctl(get_fd(), HPTIO_CTL, task))) {
|
|
if (retval==-EINVAL)
|
|
pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (command==STATUS_CHECK){
|
|
int retval;
|
|
unsigned const char normal_lo=0x4f, normal_hi=0xc2;
|
|
unsigned const char failed_lo=0xf4, failed_hi=0x2c;
|
|
buff[4]=normal_lo;
|
|
buff[5]=normal_hi;
|
|
|
|
hpt[2] = HDIO_DRIVE_TASK;
|
|
|
|
if ((retval=ioctl(get_fd(), HPTIO_CTL, hpt_buff))) {
|
|
if (retval==-EINVAL) {
|
|
pout("Error SMART Status command via HDIO_DRIVE_TASK failed");
|
|
pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n");
|
|
}
|
|
else
|
|
syserror("Error SMART Status command failed");
|
|
return -1;
|
|
}
|
|
|
|
if (buff[4]==normal_lo && buff[5]==normal_hi)
|
|
return 0;
|
|
|
|
if (buff[4]==failed_lo && buff[5]==failed_hi)
|
|
return 1;
|
|
|
|
syserror("Error SMART Status command failed");
|
|
pout("Please get assistance from " PACKAGE_HOMEPAGE "\n");
|
|
pout("Register values returned from SMART Status command are:\n");
|
|
pout("CMD=0x%02x\n",(int)buff[0]);
|
|
pout("FR =0x%02x\n",(int)buff[1]);
|
|
pout("NS =0x%02x\n",(int)buff[2]);
|
|
pout("SC =0x%02x\n",(int)buff[3]);
|
|
pout("CL =0x%02x\n",(int)buff[4]);
|
|
pout("CH =0x%02x\n",(int)buff[5]);
|
|
pout("SEL=0x%02x\n",(int)buff[6]);
|
|
return -1;
|
|
}
|
|
|
|
#if 1
|
|
if (command==IDENTIFY || command==PIDENTIFY) {
|
|
unsigned char deviceid[4*sizeof(int)+512*sizeof(char)];
|
|
unsigned int *hpt = (unsigned int *)deviceid;
|
|
|
|
hpt[0] = m_hpt_data[0]; // controller id
|
|
hpt[1] = m_hpt_data[1]; // channel number
|
|
hpt[3] = m_hpt_data[2]; // pmport number
|
|
|
|
hpt[2] = HDIO_GET_IDENTITY;
|
|
if (!ioctl(get_fd(), HPTIO_CTL, deviceid) && (deviceid[4*sizeof(int)] & 0x8000))
|
|
buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE;
|
|
}
|
|
#endif
|
|
|
|
hpt[2] = HDIO_DRIVE_CMD;
|
|
if ((ioctl(get_fd(), HPTIO_CTL, hpt_buff)))
|
|
return -1;
|
|
|
|
if (command==CHECK_POWER_MODE)
|
|
buff[HDIO_DRIVE_CMD_OFFSET]=buff[2];
|
|
|
|
if (copydata)
|
|
memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#if 0 // TODO: Migrate from 'smart_command_set' to 'ata_in_regs' OR remove the function
|
|
// Utility function for printing warnings
|
|
void printwarning(smart_command_set command){
|
|
static int printed[4]={0,0,0,0};
|
|
const char* message=
|
|
"can not be passed through the 3ware 3w-xxxx driver. This can be fixed by\n"
|
|
"applying a simple 3w-xxxx driver patch that can be found here:\n"
|
|
PACKAGE_HOMEPAGE "\n"
|
|
"Alternatively, upgrade your 3w-xxxx driver to version 1.02.00.037 or greater.\n\n";
|
|
|
|
if (command==AUTO_OFFLINE && !printed[0]) {
|
|
printed[0]=1;
|
|
pout("The SMART AUTO-OFFLINE ENABLE command (smartmontools -o on option/Directive)\n%s", message);
|
|
}
|
|
else if (command==AUTOSAVE && !printed[1]) {
|
|
printed[1]=1;
|
|
pout("The SMART AUTOSAVE ENABLE command (smartmontools -S on option/Directive)\n%s", message);
|
|
}
|
|
else if (command==STATUS_CHECK && !printed[2]) {
|
|
printed[2]=1;
|
|
pout("The SMART RETURN STATUS return value (smartmontools -H option/Directive)\n%s", message);
|
|
}
|
|
else if (command==WRITE_LOG && !printed[3]) {
|
|
printed[3]=1;
|
|
pout("The SMART WRITE LOG command (smartmontools -t selective) only supported via char /dev/tw[ae] interface\n");
|
|
}
|
|
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// SCSI open with autodetection support
|
|
|
|
smart_device * linux_scsi_device::autodetect_open()
|
|
{
|
|
// Open device
|
|
if (!open())
|
|
return this;
|
|
|
|
// No Autodetection if device type was specified by user
|
|
if (*get_req_type())
|
|
return this;
|
|
|
|
// The code below is based on smartd.cpp:SCSIFilterKnown()
|
|
|
|
// Get INQUIRY
|
|
unsigned char req_buff[64] = {0, };
|
|
int req_len = 36;
|
|
if (scsiStdInquiry(this, req_buff, req_len)) {
|
|
// Marvell controllers fail on a 36 bytes StdInquiry, but 64 suffices
|
|
// watch this spot ... other devices could lock up here
|
|
req_len = 64;
|
|
if (scsiStdInquiry(this, req_buff, req_len)) {
|
|
// device doesn't like INQUIRY commands
|
|
close();
|
|
set_err(EIO, "INQUIRY failed");
|
|
return this;
|
|
}
|
|
}
|
|
|
|
int avail_len = req_buff[4] + 5;
|
|
int len = (avail_len < req_len ? avail_len : req_len);
|
|
if (len < 36)
|
|
return this;
|
|
|
|
// Use INQUIRY to detect type
|
|
smart_device * newdev = 0;
|
|
try {
|
|
// 3ware ?
|
|
if (!memcmp(req_buff + 8, "3ware", 5) || !memcmp(req_buff + 8, "AMCC", 4)) {
|
|
close();
|
|
set_err(EINVAL, "AMCC/3ware controller, please try adding '-d 3ware,N',\n"
|
|
"you may need to replace %s with /dev/twaN or /dev/tweN", get_dev_name());
|
|
return this;
|
|
}
|
|
// DELL?
|
|
if (!memcmp(req_buff + 8, "DELL PERC", 12) || !memcmp(req_buff + 8, "MegaRAID", 8)) {
|
|
close();
|
|
set_err(EINVAL, "DELL or MegaRaid controller, please try adding '-d megaraid,N'");
|
|
return this;
|
|
}
|
|
|
|
// Marvell ?
|
|
if (len >= 42 && !memcmp(req_buff + 36, "MVSATA", 6)) {
|
|
//pout("Device %s: using '-d marvell' for ATA disk with Marvell driver\n", get_dev_name());
|
|
close();
|
|
newdev = new linux_marvell_device(smi(), get_dev_name(), get_req_type());
|
|
newdev->open(); // TODO: Can possibly pass open fd
|
|
delete this;
|
|
return newdev;
|
|
}
|
|
|
|
// SAT or USB ?
|
|
newdev = smi()->autodetect_sat_device(this, req_buff, len);
|
|
if (newdev)
|
|
// NOTE: 'this' is now owned by '*newdev'
|
|
return newdev;
|
|
}
|
|
catch (...) {
|
|
// Cleanup if exception occurs after newdev was allocated
|
|
delete newdev;
|
|
throw;
|
|
}
|
|
|
|
// Nothing special found
|
|
return this;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// USB bridge ID detection
|
|
|
|
// Read USB ID from /sys file
|
|
static bool read_id(const std::string & path, unsigned short & id)
|
|
{
|
|
FILE * f = fopen(path.c_str(), "r");
|
|
if (!f)
|
|
return false;
|
|
int n = -1;
|
|
bool ok = (fscanf(f, "%hx%n", &id, &n) == 1 && n == 4);
|
|
fclose(f);
|
|
return ok;
|
|
}
|
|
|
|
// Get USB bridge ID for "sdX"
|
|
static bool get_usb_id(const char * name, unsigned short & vendor_id,
|
|
unsigned short & product_id, unsigned short & version)
|
|
{
|
|
// Only "sdX" supported
|
|
if (!(!strncmp(name, "sd", 2) && !strchr(name, '/')))
|
|
return false;
|
|
|
|
// Start search at dir referenced by symlink "/sys/block/sdX/device"
|
|
// -> "/sys/devices/.../usb*/.../host*/target*/..."
|
|
std::string dir = strprintf("/sys/block/%s/device", name);
|
|
|
|
// Stop search at "/sys/devices"
|
|
struct stat st;
|
|
if (stat("/sys/devices", &st))
|
|
return false;
|
|
ino_t stop_ino = st.st_ino;
|
|
|
|
// Search in parent directories until "idVendor" is found,
|
|
// fail if "/sys/devices" reached or too many iterations
|
|
int cnt = 0;
|
|
do {
|
|
dir += "/..";
|
|
if (!(++cnt < 10 && !stat(dir.c_str(), &st) && st.st_ino != stop_ino))
|
|
return false;
|
|
} while (access((dir + "/idVendor").c_str(), 0));
|
|
|
|
// Read IDs
|
|
if (!( read_id(dir + "/idVendor", vendor_id)
|
|
&& read_id(dir + "/idProduct", product_id)
|
|
&& read_id(dir + "/bcdDevice", version) ))
|
|
return false;
|
|
|
|
if (con->reportscsiioctl > 1)
|
|
pout("USB ID = 0x%04x:0x%04x (0x%03x)\n", vendor_id, product_id, version);
|
|
return true;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
/// Linux interface
|
|
|
|
class linux_smart_interface
|
|
: public /*implements*/ smart_interface
|
|
{
|
|
public:
|
|
virtual std::string get_app_examples(const char * appname);
|
|
|
|
virtual bool scan_smart_devices(smart_device_list & devlist, const char * type,
|
|
const char * pattern = 0);
|
|
|
|
protected:
|
|
virtual ata_device * get_ata_device(const char * name, const char * type);
|
|
|
|
virtual scsi_device * get_scsi_device(const char * name, const char * type);
|
|
|
|
virtual smart_device * autodetect_smart_device(const char * name);
|
|
|
|
virtual smart_device * get_custom_smart_device(const char * name, const char * type);
|
|
|
|
virtual std::string get_valid_custom_dev_types_str();
|
|
|
|
private:
|
|
bool get_dev_list(smart_device_list & devlist, const char * pattern,
|
|
bool scan_ata, bool scan_scsi, const char * req_type, bool autodetect);
|
|
|
|
smart_device * missing_option(const char * opt);
|
|
};
|
|
|
|
std::string linux_smart_interface::get_app_examples(const char * appname)
|
|
{
|
|
if (!strcmp(appname, "smartctl"))
|
|
return smartctl_examples;
|
|
return "";
|
|
}
|
|
|
|
|
|
// we are going to take advantage of the fact that Linux's devfs will only
|
|
// have device entries for devices that exist. So if we get the equivalent of
|
|
// ls /dev/hd[a-t], we have all the ATA devices on the system
|
|
bool linux_smart_interface::get_dev_list(smart_device_list & devlist,
|
|
const char * pattern, bool scan_ata, bool scan_scsi,
|
|
const char * req_type, bool autodetect)
|
|
{
|
|
// Use glob to look for any directory entries matching the pattern
|
|
glob_t globbuf;
|
|
memset(&globbuf, 0, sizeof(globbuf));
|
|
int retglob = glob(pattern, GLOB_ERR, NULL, &globbuf);
|
|
if (retglob) {
|
|
// glob failed: free memory and return
|
|
globfree(&globbuf);
|
|
|
|
if (retglob==GLOB_NOMATCH){
|
|
pout("glob(3) found no matches for pattern %s\n", pattern);
|
|
return true;
|
|
}
|
|
|
|
if (retglob==GLOB_NOSPACE)
|
|
set_err(ENOMEM, "glob(3) ran out of memory matching pattern %s", pattern);
|
|
#ifdef GLOB_ABORTED // missing in old versions of glob.h
|
|
else if (retglob==GLOB_ABORTED)
|
|
set_err(EINVAL, "glob(3) aborted matching pattern %s", pattern);
|
|
#endif
|
|
else
|
|
set_err(EINVAL, "Unexplained error in glob(3) of pattern %s", pattern);
|
|
|
|
return false;
|
|
}
|
|
|
|
// did we find too many paths?
|
|
const int max_pathc = 32;
|
|
int n = (int)globbuf.gl_pathc;
|
|
if (n > max_pathc) {
|
|
pout("glob(3) found %d > MAX=%d devices matching pattern %s: ignoring %d paths\n",
|
|
n, max_pathc, pattern, n - max_pathc);
|
|
n = max_pathc;
|
|
}
|
|
|
|
// now step through the list returned by glob. If not a link, copy
|
|
// to list. If it is a link, evaluate it and see if the path ends
|
|
// in "disc".
|
|
for (int i = 0; i < n; i++){
|
|
// see if path is a link
|
|
char linkbuf[1024];
|
|
int retlink = readlink(globbuf.gl_pathv[i], linkbuf, sizeof(linkbuf)-1);
|
|
|
|
char tmpname[1024]={0};
|
|
const char * name = 0;
|
|
bool is_scsi = scan_scsi;
|
|
// if not a link (or a strange link), keep it
|
|
if (retlink<=0 || retlink>1023)
|
|
name = globbuf.gl_pathv[i];
|
|
else {
|
|
// or if it's a link that points to a disc, follow it
|
|
linkbuf[retlink] = 0;
|
|
const char *p;
|
|
if ((p=strrchr(linkbuf, '/')) && !strcmp(p+1, "disc"))
|
|
// This is the branch of the code that gets followed if we are
|
|
// using devfs WITH traditional compatibility links. In this
|
|
// case, we add the traditional device name to the list that
|
|
// is returned.
|
|
name = globbuf.gl_pathv[i];
|
|
else {
|
|
// This is the branch of the code that gets followed if we are
|
|
// using devfs WITHOUT traditional compatibility links. In
|
|
// this case, we check that the link to the directory is of
|
|
// the correct type, and then append "disc" to it.
|
|
bool match_ata = strstr(linkbuf, "ide");
|
|
bool match_scsi = strstr(linkbuf, "scsi");
|
|
if (((match_ata && scan_ata) || (match_scsi && scan_scsi)) && !(match_ata && match_scsi)) {
|
|
is_scsi = match_scsi;
|
|
snprintf(tmpname, sizeof(tmpname), "%s/disc", globbuf.gl_pathv[i]);
|
|
name = tmpname;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (name) {
|
|
// Found a name, add device to list.
|
|
smart_device * dev;
|
|
if (autodetect)
|
|
dev = autodetect_smart_device(name);
|
|
else if (is_scsi)
|
|
dev = new linux_scsi_device(this, name, req_type);
|
|
else
|
|
dev = new linux_ata_device(this, name, req_type);
|
|
if (dev) // autodetect_smart_device() may return nullptr.
|
|
devlist.add(dev);
|
|
}
|
|
}
|
|
|
|
// free memory
|
|
globfree(&globbuf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool linux_smart_interface::scan_smart_devices(smart_device_list & devlist,
|
|
const char * type, const char * pattern /*= 0*/)
|
|
{
|
|
if (pattern) {
|
|
set_err(EINVAL, "DEVICESCAN with pattern not implemented yet");
|
|
return false;
|
|
}
|
|
|
|
if (!type)
|
|
type = "";
|
|
|
|
bool scan_ata = (!*type || !strcmp(type, "ata" ));
|
|
bool scan_scsi = (!*type || !strcmp(type, "scsi"));
|
|
if (!(scan_ata || scan_scsi))
|
|
return true;
|
|
|
|
if (scan_ata)
|
|
get_dev_list(devlist, "/dev/hd[a-t]", true, false, type, false);
|
|
if (scan_scsi) // Try USB autodetection if no type specifed
|
|
get_dev_list(devlist, "/dev/sd[a-z]", false, true, type, !*type);
|
|
|
|
// if we found traditional links, we are done
|
|
if (devlist.size() > 0)
|
|
return true;
|
|
|
|
// else look for devfs entries without traditional links
|
|
// TODO: Add udev support
|
|
return get_dev_list(devlist, "/dev/discs/disc*", scan_ata, scan_scsi, type, false);
|
|
}
|
|
|
|
ata_device * linux_smart_interface::get_ata_device(const char * name, const char * type)
|
|
{
|
|
return new linux_ata_device(this, name, type);
|
|
}
|
|
|
|
scsi_device * linux_smart_interface::get_scsi_device(const char * name, const char * type)
|
|
{
|
|
return new linux_scsi_device(this, name, type);
|
|
}
|
|
|
|
smart_device * linux_smart_interface::missing_option(const char * opt)
|
|
{
|
|
set_err(EINVAL, "requires option '%s'", opt);
|
|
return 0;
|
|
}
|
|
|
|
// Return true if STR starts with PREFIX.
|
|
static bool str_starts_with(const char * str, const char * prefix)
|
|
{
|
|
return !strncmp(str, prefix, strlen(prefix));
|
|
}
|
|
|
|
// Guess device type (ata or scsi) based on device name (Linux
|
|
// specific) SCSI device name in linux can be sd, sr, scd, st, nst,
|
|
// osst, nosst and sg.
|
|
static const char * lin_dev_prefix = "/dev/";
|
|
static const char * lin_dev_ata_disk_plus = "h";
|
|
static const char * lin_dev_ata_devfs_disk_plus = "ide/";
|
|
static const char * lin_dev_scsi_devfs_disk_plus = "scsi/";
|
|
static const char * lin_dev_scsi_disk_plus = "s";
|
|
static const char * lin_dev_scsi_tape1 = "ns";
|
|
static const char * lin_dev_scsi_tape2 = "os";
|
|
static const char * lin_dev_scsi_tape3 = "nos";
|
|
static const char * lin_dev_3ware_9000_char = "twa";
|
|
static const char * lin_dev_3ware_678k_char = "twe";
|
|
static const char * lin_dev_cciss_dir = "cciss/";
|
|
static const char * lin_dev_areca = "sg";
|
|
|
|
smart_device * linux_smart_interface::autodetect_smart_device(const char * name)
|
|
{
|
|
const char * dev_name = name; // TODO: Remove this hack
|
|
int dev_prefix_len = strlen(lin_dev_prefix);
|
|
|
|
// if dev_name null, or string length zero
|
|
int len;
|
|
if (!dev_name || !(len = strlen(dev_name)))
|
|
return 0;
|
|
|
|
// Dereference if /dev/disk/by-*/* symlink
|
|
char linkbuf[100];
|
|
if ( str_starts_with(dev_name, "/dev/disk/by-")
|
|
&& readlink(dev_name, linkbuf, sizeof(linkbuf)) > 0
|
|
&& str_starts_with(linkbuf, "../../")) {
|
|
dev_name = linkbuf + sizeof("../../")-1;
|
|
}
|
|
// Remove the leading /dev/... if it's there
|
|
else if (!strncmp(lin_dev_prefix, dev_name, dev_prefix_len)) {
|
|
if (len <= dev_prefix_len)
|
|
// if nothing else in the string, unrecognized
|
|
return 0;
|
|
// else advance pointer to following characters
|
|
dev_name += dev_prefix_len;
|
|
}
|
|
|
|
// form /dev/h* or h*
|
|
if (!strncmp(lin_dev_ata_disk_plus, dev_name,
|
|
strlen(lin_dev_ata_disk_plus)))
|
|
return new linux_ata_device(this, name, "");
|
|
|
|
// form /dev/ide/* or ide/*
|
|
if (!strncmp(lin_dev_ata_devfs_disk_plus, dev_name,
|
|
strlen(lin_dev_ata_devfs_disk_plus)))
|
|
return new linux_ata_device(this, name, "");
|
|
|
|
// form /dev/s* or s*
|
|
if (!strncmp(lin_dev_scsi_disk_plus, dev_name,
|
|
strlen(lin_dev_scsi_disk_plus))) {
|
|
|
|
// Try to detect possible USB->(S)ATA bridge
|
|
unsigned short vendor_id = 0, product_id = 0, version = 0;
|
|
if (get_usb_id(dev_name, vendor_id, product_id, version)) {
|
|
const char * usbtype = get_usb_dev_type_by_id(vendor_id, product_id, version);
|
|
if (!usbtype)
|
|
return 0;
|
|
// Linux USB layer does not support 16 byte SAT pass through command
|
|
if (!strcmp(usbtype, "sat"))
|
|
usbtype = "sat,12";
|
|
// Return SAT/USB device for this type
|
|
// (Note: linux_scsi_device::autodetect_open() will not be called in this case)
|
|
return get_sat_device(usbtype, new linux_scsi_device(this, name, ""));
|
|
}
|
|
|
|
// No USB bridge found, assume regular SCSI device
|
|
return new linux_scsi_device(this, name, "");
|
|
}
|
|
|
|
// form /dev/scsi/* or scsi/*
|
|
if (!strncmp(lin_dev_scsi_devfs_disk_plus, dev_name,
|
|
strlen(lin_dev_scsi_devfs_disk_plus)))
|
|
return new linux_scsi_device(this, name, "");
|
|
|
|
// form /dev/ns* or ns*
|
|
if (!strncmp(lin_dev_scsi_tape1, dev_name,
|
|
strlen(lin_dev_scsi_tape1)))
|
|
return new linux_scsi_device(this, name, "");
|
|
|
|
// form /dev/os* or os*
|
|
if (!strncmp(lin_dev_scsi_tape2, dev_name,
|
|
strlen(lin_dev_scsi_tape2)))
|
|
return new linux_scsi_device(this, name, "");
|
|
|
|
// form /dev/nos* or nos*
|
|
if (!strncmp(lin_dev_scsi_tape3, dev_name,
|
|
strlen(lin_dev_scsi_tape3)))
|
|
return new linux_scsi_device(this, name, "");
|
|
|
|
// form /dev/twa*
|
|
if (!strncmp(lin_dev_3ware_9000_char, dev_name,
|
|
strlen(lin_dev_3ware_9000_char)))
|
|
return missing_option("-d 3ware,N");
|
|
|
|
// form /dev/twe*
|
|
if (!strncmp(lin_dev_3ware_678k_char, dev_name,
|
|
strlen(lin_dev_3ware_678k_char)))
|
|
return missing_option("-d 3ware,N");
|
|
|
|
// form /dev/cciss*
|
|
if (!strncmp(lin_dev_cciss_dir, dev_name,
|
|
strlen(lin_dev_cciss_dir)))
|
|
return missing_option("-d cciss,N");
|
|
|
|
// form /dev/sg*
|
|
if ( !strncmp(lin_dev_areca, dev_name,
|
|
strlen(lin_dev_areca)) )
|
|
return missing_option("-d areca,N");
|
|
|
|
// we failed to recognize any of the forms
|
|
return 0;
|
|
}
|
|
|
|
smart_device * linux_smart_interface::get_custom_smart_device(const char * name, const char * type)
|
|
{
|
|
// Marvell ?
|
|
if (!strcmp(type, "marvell"))
|
|
return new linux_marvell_device(this, name, type);
|
|
|
|
// 3Ware ?
|
|
int disknum = -1, n1 = -1, n2 = -1;
|
|
if (sscanf(type, "3ware,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) {
|
|
if (n2 != (int)strlen(type)) {
|
|
set_err(EINVAL, "Option -d 3ware,N requires N to be a non-negative integer");
|
|
return 0;
|
|
}
|
|
if (!(0 <= disknum && disknum <= 127)) {
|
|
set_err(EINVAL, "Option -d 3ware,N (N=%d) must have 0 <= N <= 127", disknum);
|
|
return 0;
|
|
}
|
|
|
|
if (!strncmp(name, "/dev/twa", 8))
|
|
return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_9000_CHAR, disknum);
|
|
else if (!strncmp(name, "/dev/twe", 8))
|
|
return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_678K_CHAR, disknum);
|
|
else
|
|
return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_678K, disknum);
|
|
}
|
|
|
|
// Areca?
|
|
disknum = n1 = n2 = -1;
|
|
if (sscanf(type, "areca,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) {
|
|
if (n2 != (int)strlen(type)) {
|
|
set_err(EINVAL, "Option -d areca,N requires N to be a non-negative integer");
|
|
return 0;
|
|
}
|
|
if (!(1 <= disknum && disknum <= 24)) {
|
|
set_err(EINVAL, "Option -d areca,N (N=%d) must have 1 <= N <= 24", disknum);
|
|
return 0;
|
|
}
|
|
return new linux_areca_device(this, name, disknum);
|
|
}
|
|
|
|
// Highpoint ?
|
|
int controller = -1, channel = -1; disknum = 1;
|
|
n1 = n2 = -1; int n3 = -1;
|
|
if (sscanf(type, "hpt,%n%d/%d%n/%d%n", &n1, &controller, &channel, &n2, &disknum, &n3) >= 2 || n1 == 4) {
|
|
int len = strlen(type);
|
|
if (!(n2 == len || n3 == len)) {
|
|
set_err(EINVAL, "Option '-d hpt,L/M/N' supports 2-3 items");
|
|
return 0;
|
|
}
|
|
if (!(1 <= controller && controller <= 8)) {
|
|
set_err(EINVAL, "Option '-d hpt,L/M/N' invalid controller id L supplied");
|
|
return 0;
|
|
}
|
|
if (!(1 <= channel && channel <= 8)) {
|
|
set_err(EINVAL, "Option '-d hpt,L/M/N' invalid channel number M supplied");
|
|
return 0;
|
|
}
|
|
if (!(1 <= disknum && disknum <= 15)) {
|
|
set_err(EINVAL, "Option '-d hpt,L/M/N' invalid pmport number N supplied");
|
|
return 0;
|
|
}
|
|
return new linux_highpoint_device(this, name, controller, channel, disknum);
|
|
}
|
|
|
|
#ifdef HAVE_LINUX_CCISS_IOCTL_H
|
|
// CCISS ?
|
|
disknum = n1 = n2 = -1;
|
|
if (sscanf(type, "cciss,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) {
|
|
if (n2 != (int)strlen(type)) {
|
|
set_err(EINVAL, "Option -d cciss,N requires N to be a non-negative integer");
|
|
return 0;
|
|
}
|
|
if (!(0 <= disknum && disknum <= 15)) {
|
|
set_err(EINVAL, "Option -d cciss,N (N=%d) must have 0 <= N <= 15", disknum);
|
|
return 0;
|
|
}
|
|
return new linux_cciss_device(this, name, disknum);
|
|
}
|
|
#endif // HAVE_LINUX_CCISS_IOCTL_H
|
|
|
|
// MegaRAID ?
|
|
if (sscanf(type, "megaraid,%d", &disknum) == 1) {
|
|
return new linux_megaraid_device(this, name, 0, disknum);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
std::string linux_smart_interface::get_valid_custom_dev_types_str()
|
|
{
|
|
return "marvell, areca,N, 3ware,N, hpt,L/M/N, megaraid,N"
|
|
#ifdef HAVE_LINUX_CCISS_IOCTL_H
|
|
", cciss,N"
|
|
#endif
|
|
;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
/// Initialize platform interface and register with smi()
|
|
|
|
void smart_interface::init()
|
|
{
|
|
static os_linux::linux_smart_interface the_interface;
|
|
smart_interface::set(&the_interface);
|
|
}
|