| 1 |
/* @(#)scsi-openserver.c 1.31 04/01/15 Copyright 1998 J. Schilling, Santa Cruz Operation */
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#ifndef lint
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static char __sccsid[] =
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"@(#)scsi-openserver.c 1.31 04/01/15 Copyright 1998 J. Schilling, Santa Cruz Operation";
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#endif
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/*
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* Interface for the SCO SCSI implementation.
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*
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* Warning: you may change this source, but if you do that
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| 10 |
* you need to change the _scg_version and _scg_auth* string below.
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* You may not return "schily" for an SCG_AUTHOR request anymore.
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| 12 |
* Choose your name instead of "schily" and make clear that the version
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| 13 |
* string is related to a modified source.
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*
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* Copyright (c) 1998 J. Schilling, Santa Cruz Operation
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*/
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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 version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; see the file COPYING. If not, write to the Free Software
|
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* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#undef sense
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#include <sys/scsicmd.h>
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/*
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* Warning: you may change this source, but if you do that
|
| 38 |
* you need to change the _scg_version and _scg_auth* string below.
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| 39 |
* You may not return "schily" for an SCG_AUTHOR request anymore.
|
| 40 |
* Choose your name instead of "schily" and make clear that the version
|
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* string is related to a modified source.
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*/
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LOCAL char _scg_trans_version[] = "scsi-openserver.c-1.31"; /* The version for this transport*/
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#define MAX_SCG 16 /* Max # of cdrom devices */
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#define MAX_TGT 16 /* Not really needed */
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#define MAX_LUN 8 /* Not really needed */
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#define MAX_DMA (64*1024)
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#define MAXPATH 256 /* max length of devicepath */
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#define MAXLINE 80 /* max length of input line */
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#define MAXSCSI 99 /* max number of mscsi lines */
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#define MAXDRVN 10 /* max length of drivername */
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#define DEV_DIR "/tmp"
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#define DEV_NAME "scg.s%1dt%1dl%1d"
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/*
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* ---------------------------------------------------------------------
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* We will only deal with cdroms by default! Only if you set a specific
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* environment variable, we will scan "all" devices !
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* Set LIBSCG_SCAN_ALL to any value to enable access to all your SCSI
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* devices.
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*
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* The upcoming support for USB will be for USB 1.1, so as this is not
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* tested yet, we will currently ignore drives connect to the USB stack
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* (usbha controller) regardless of having set LIBSCG_SCAN_ALL or not!
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*/
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#define DEV_ROOT "/dev/dsk/0s0"
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#define DEV_SDSK "/dev/rdsk/%ds0"
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#define DEV_SROM "/dev/rcd%d"
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#define DEV_STP "/dev/xStp%d"
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#define DEV_SFLP "/dev/rdsk/fp%dh"
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#define SCAN_DEV "%s%s%d%d%d%d"
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#define SCSI_CFG "/etc/sconf -r" /* no. of configured devices */
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#define SCSI_DEV "/etc/sconf -g %d" /* read line 'n' of mscsi tbl */
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#define DRV_ATAPI "wd" /* SCO OpenServer IDE driver */
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#define DRV_USB "usbha" /* SCO OpenServer USB driver */
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#define DRV_NOHA "noha" /* IDE/ATAPI device configured, */
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/* but missing ! */
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#define T_DISK "Sdsk" /* SCO OpenServer SCSI disk */
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#define T_CDROM "Srom" /* SCO OpenServer SCSI cdrom */
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#define T_TAPE "Stp" /* SCO OpenServer SCSI tape */
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#define T_FLOPPY "Sflp" /* SCO OpenServer SCSI floppy */
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/*
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* ---------------------------------------------------------------------
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* Environment variables to control certain functionality
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*/
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#define SCAN_ALL "LIBSCG_SCAN_ALL" /* enable access for all devices */
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#define SCSI_USER_CMD "LIBSCG_SCSIUSERCMD" /* use old SCSIUSERCMD ioctl() */
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#define DMA_OVERRIDE "LIBSCG_MAX_DMA" /* override MAX_DMA value */
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#define ENABLE_USB "LIBSCG_ENABLE_USB" /* enable access of USB devices */
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LOCAL int scan_all = 0; /* don't scan all devices by default */
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LOCAL int scsiusercmd = 0; /* use SCSIUSERCMD2 ioctl by default */
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LOCAL int enable_usb = 0; /* don't scan USB devices by default */
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LOCAL long max_dma = MAX_DMA; /* use MAX_DMA DMA buffer by default */
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/*
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* ---------------------------------------------------------------------
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* There are two scsi passthrough ioctl() on SCO OpenServer 5.0.[45],
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* while there is only one available on SCO OpenServer 5.0.[02].
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*
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* The SCSIUSERCMD ioctl is available on all OpenServer 5
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*
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* The SCSIUSERCMD2 ioctl which executes the usercmd and reads the sense
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* in one go, is only available from 5.0.4 onwards.
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*
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* By default we will use the SCSIUSERCMD2 ioctl(), in order to execute
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* the SCSIUSERCMD ioctl() instead set the environment variable
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* LIBSCG_SCSIUSERCMD to any value. Using the olderSCSIUSERCMD ioctl() will
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* if the SCSI commands returns a CHECK CONDITION status, run a seperate
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* REQUEST_SENSE command immediately. But we need to remember that in a
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* multi-tasking environment, there might be other code which has accessed
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* the device in between these two steps and therefore the sense code
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* is no longer valid !!!
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*
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* NOTE: There are problems with the usage of AHA 154X controllers
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* and SCSIUSERCMD2 such as nonsense (weird) output on cdrecord -scanbus
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*
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*/
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typedef struct scg2sdi {
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int valid;
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int open;
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int atapi;
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int fd;
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int lmscsi;
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} scg2sdi_t;
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LOCAL scg2sdi_t sdidevs [MAX_SCG][MAX_TGT][MAX_LUN];
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typedef struct amscsi {
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char typ[MAXDRVN];
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char drv[MAXDRVN];
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int hba;
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int bus;
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int scg;
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int tgt;
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int lun;
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char dev[MAXPATH];
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} amscsi_t;
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struct scg_local {
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short scgfiles[MAX_SCG][MAX_TGT][MAX_LUN];
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};
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#define scglocal(p) ((struct scg_local *)((p)->local))
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LOCAL int sort_mscsi __PR((const void *l1, const void *l2));
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LOCAL int openserver_init __PR((SCSI *scgp));
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LOCAL void cp_scg2sco __PR((struct scsicmd2 *sco, struct scg_cmd *scg));
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LOCAL void cp_sco2scg __PR((struct scsicmd2 *sco, struct scg_cmd *scg));
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/*
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* -------------------------------------------------------------------------
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* SCO OpenServer does not have a generic scsi device driver, which can
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* be used to access any configured scsi device. But we can use the "Sxxx"
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* scsi peripherial drivers passthrough ioctl() (SCSIUSERCMD / SCSIUSERCMD2)
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* to send scsi user comands to any target device controlled by the
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* corresponding target driver.
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*
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* This passthrough implementation for libscg currently allows to
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* handle the following devices classes:
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*
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* 1. DISK handled by Sdsk
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* 2. CD-ROM handled by Srom
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* 3. TAPES handled by Stp
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* 4. FLOPPY handled by Sflp
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*
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* NOTE: The libscg OpenServer passthrough routines have changed with
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* cdrecord-1.8 to enable the -scanbus option. Therefore the
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* addressing scheme is now the same as used on many other platforms
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* like Solaris, Linux etc.
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*
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* ===============================================================
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* RUN 'cdrecord -scanbus' TO SEE THE DEVICE ADDRESSES YOU CAN USE
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* ===============================================================
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*
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*/
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/*
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* Return version information for the low level SCSI transport code.
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* This has been introduced to make it easier to trace down problems
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* in applications.
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*/
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LOCAL char *
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scgo_version(scgp, what)
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SCSI *scgp;
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int what;
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{
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if (scgp != (SCSI *)0) {
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switch (what) {
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case SCG_VERSION:
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return (_scg_trans_version);
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/*
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* If you changed this source, you are not allowed to
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* return "schily" for the SCG_AUTHOR request.
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*/
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case SCG_AUTHOR:
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return (_scg_auth_schily);
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case SCG_SCCS_ID:
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return (__sccsid);
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}
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}
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return ((char *)0);
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}
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LOCAL int
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scgo_help(scgp, f)
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SCSI *scgp;
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FILE *f;
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{
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__scg_help(f, "SCSIUSERCMD/SCSIUSERCMD2", "Generic SCSI",
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"", "bus,target,lun", "1,2,0", TRUE, FALSE);
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return (0);
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}
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/*
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* ---------------------------------------------------------------
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* This routine sorts the amscsi_t lines on the following columns
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* in ascending order:
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*
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* 1. drv - driver name
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* 2. bus - scsibus per controller
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* 3. tgt - target id of device
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* 4. lun - lun of the device
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*
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| 245 |
*/
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| 246 |
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| 247 |
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LOCAL int
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sort_mscsi(l1, l2)
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const void *l1;
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const void *l2;
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{
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amscsi_t *t1 = (amscsi_t *) l1;
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amscsi_t *t2 = (amscsi_t *) l2;
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if (strcmp(t1->drv, t2->drv) == 0) {
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if (t1->bus < t2->bus) {
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return (-1);
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| 259 |
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| 260 |
} else if (t1->bus > t2->bus) {
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return (1);
|
| 262 |
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} else if (t1->tgt < t2->tgt) {
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return (-1);
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| 265 |
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} else if (t1->tgt > t2->tgt) {
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| 267 |
return (1);
|
| 268 |
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| 269 |
} else if (t1->lun < t2->lun) {
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return (-1);
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| 271 |
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| 272 |
} else if (t1->lun > t2->lun) {
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return (1);
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} else {
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return (0);
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}
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} else {
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return (strcmp(t1->drv, t2->drv));
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}
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}
|
| 281 |
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/*
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* ---------------------------------------------------------------
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* This routine is introduced to find all scsi devices which are
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* currently configured into the kernel. This is done by reading
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* the dynamic kernel mscsi tables and parse the resulting lines.
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* As the output of 'sconf' is not directly usable the information
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* found is to be sorted and re-arranged to be used with the libscg
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* routines.
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*
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* NOTE: One problem is currently still not solved ! If you don't
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* have a media in your CD-ROM/CD-Writer we are not able to
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| 293 |
* do an open() and therefore will set the drive to be not
|
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* available (valid=0).
|
| 295 |
*
|
| 296 |
* This will for example cause cdrecord to not list the drive
|
| 297 |
* in the -scanbus output.
|
| 298 |
*
|
| 299 |
*/
|
| 300 |
|
| 301 |
LOCAL int
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| 302 |
openserver_init(scgp)
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| 303 |
SCSI *scgp;
|
| 304 |
{
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| 305 |
FILE *cmd;
|
| 306 |
int nscg = -1, lhba = -1, lbus = -1;
|
| 307 |
int nSrom = -1, nSdsk = -1, nStp = -1, nSflp = -1;
|
| 308 |
int atapi, fd, nopen = 0;
|
| 309 |
int pos = 0, len = 0, nlm = 0;
|
| 310 |
int s = 0, t = 0, l = 0;
|
| 311 |
int ide_rootdisk = 0;
|
| 312 |
long dma_override = 0;
|
| 313 |
int mscsi;
|
| 314 |
char sconf[MAXLINE];
|
| 315 |
char lines[MAXLINE];
|
| 316 |
char drvid[MAXDRVN];
|
| 317 |
amscsi_t cmtbl[MAXSCSI];
|
| 318 |
char dname[MAXPATH];
|
| 319 |
char **evsave;
|
| 320 |
extern char **environ;
|
| 321 |
|
| 322 |
|
| 323 |
for (s = 0; s < MAX_SCG; s++) {
|
| 324 |
for (t = 0; t < MAX_TGT; t++) {
|
| 325 |
for (l = 0; l < MAX_LUN; l++) {
|
| 326 |
sdidevs[s][t][l].valid = 0;
|
| 327 |
sdidevs[s][t][l].open = -1;
|
| 328 |
sdidevs[s][t][l].atapi = -1;
|
| 329 |
sdidevs[s][t][l].fd = -1;
|
| 330 |
sdidevs[s][t][l].lmscsi = -1;
|
| 331 |
}
|
| 332 |
}
|
| 333 |
}
|
| 334 |
|
| 335 |
/* Check whether we want to use the older SCSIUSERCMD ioctl() */
|
| 336 |
|
| 337 |
if (getenv(SCSI_USER_CMD) != NULL) {
|
| 338 |
scsiusercmd = 1;
|
| 339 |
}
|
| 340 |
|
| 341 |
/*
|
| 342 |
* Check whether we want to scan all devices
|
| 343 |
*/
|
| 344 |
if (getenv(SCAN_ALL) != NULL) {
|
| 345 |
scan_all = 1;
|
| 346 |
}
|
| 347 |
|
| 348 |
/*
|
| 349 |
* Check whether we want to use USB devices
|
| 350 |
*/
|
| 351 |
if (getenv(ENABLE_USB) != NULL) {
|
| 352 |
enable_usb = 1;
|
| 353 |
}
|
| 354 |
|
| 355 |
/*
|
| 356 |
* Check whether we want to override the MAX_DMA value
|
| 357 |
*/
|
| 358 |
if (getenv(DMA_OVERRIDE) != NULL) {
|
| 359 |
dma_override = atol(getenv(DMA_OVERRIDE));
|
| 360 |
if ((dma_override >= 1) && (dma_override <= (256)))
|
| 361 |
max_dma = dma_override * 1024;
|
| 362 |
}
|
| 363 |
|
| 364 |
|
| 365 |
/* read sconf -r and get number of kernel mscsi lines ! */
|
| 366 |
|
| 367 |
evsave = environ;
|
| 368 |
environ = 0;
|
| 369 |
if ((cmd = popen(SCSI_CFG, "r")) == NULL) {
|
| 370 |
if (scgp->errstr)
|
| 371 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 372 |
"Error popen() for \"%s\"",
|
| 373 |
SCSI_CFG);
|
| 374 |
environ = evsave;
|
| 375 |
return (-1);
|
| 376 |
}
|
| 377 |
environ = evsave;
|
| 378 |
|
| 379 |
if (fgets(lines, MAXLINE, cmd) == NULL) {
|
| 380 |
errno = EIO;
|
| 381 |
if (scgp->errstr)
|
| 382 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 383 |
"Error reading popen() for \"%s\"",
|
| 384 |
SCSI_CFG);
|
| 385 |
return (-1);
|
| 386 |
} else
|
| 387 |
nlm = atoi(lines);
|
| 388 |
|
| 389 |
if (scgp->debug > 0) {
|
| 390 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 391 |
js_fprintf((FILE *)scgp->errfile, "mscsi lines = %d\n", nlm);
|
| 392 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 393 |
}
|
| 394 |
|
| 395 |
if (pclose(cmd) == -1) {
|
| 396 |
if (scgp->errstr)
|
| 397 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 398 |
"Error pclose() for \"%s\"",
|
| 399 |
SCSI_CFG);
|
| 400 |
return (-1);
|
| 401 |
}
|
| 402 |
|
| 403 |
for (l = 0; l < nlm; l++) {
|
| 404 |
|
| 405 |
/* initialize cmtbl entry */
|
| 406 |
|
| 407 |
cmtbl[l].hba = -1;
|
| 408 |
cmtbl[l].bus = -1;
|
| 409 |
cmtbl[l].tgt = -1;
|
| 410 |
cmtbl[l].lun = -1;
|
| 411 |
cmtbl[l].scg = -1;
|
| 412 |
|
| 413 |
memset(cmtbl[l].typ, '\0', MAXDRVN);
|
| 414 |
memset(cmtbl[l].drv, '\0', MAXDRVN);
|
| 415 |
memset(cmtbl[l].dev, '\0', MAXDRVN);
|
| 416 |
|
| 417 |
/* read sconf -g 'n' and get line of kernel mscsi table! */
|
| 418 |
/* the order the lines will be received in will determine */
|
| 419 |
/* the device name we can use to open the device */
|
| 420 |
|
| 421 |
js_snprintf(sconf, sizeof (sconf),
|
| 422 |
SCSI_DEV, l + 1); /* enumeration starts with 1 */
|
| 423 |
|
| 424 |
evsave = environ;
|
| 425 |
environ = 0;
|
| 426 |
if ((cmd = popen(sconf, "r")) == NULL) {
|
| 427 |
if (scgp->errstr)
|
| 428 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 429 |
"Error popen() for \"%s\"",
|
| 430 |
sconf);
|
| 431 |
environ = evsave;
|
| 432 |
return (-1);
|
| 433 |
}
|
| 434 |
environ = evsave;
|
| 435 |
|
| 436 |
if (fgets(lines, MAXLINE, cmd) == NULL)
|
| 437 |
break;
|
| 438 |
|
| 439 |
if (pclose(cmd) == -1) {
|
| 440 |
if (scgp->errstr)
|
| 441 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 442 |
"Error pclose() for \"%s\"",
|
| 443 |
sconf);
|
| 444 |
return (-1);
|
| 445 |
}
|
| 446 |
|
| 447 |
sscanf(lines, SCAN_DEV, cmtbl[l].typ,
|
| 448 |
cmtbl[l].drv,
|
| 449 |
&cmtbl[l].hba,
|
| 450 |
&cmtbl[l].bus,
|
| 451 |
&cmtbl[l].tgt,
|
| 452 |
&cmtbl[l].lun);
|
| 453 |
|
| 454 |
if (strstr(cmtbl[l].typ, T_DISK) != NULL) {
|
| 455 |
js_snprintf(cmtbl[l].dev, sizeof (cmtbl[l].dev),
|
| 456 |
DEV_SDSK, ++nSdsk);
|
| 457 |
}
|
| 458 |
|
| 459 |
if (strstr(cmtbl[l].typ, T_CDROM) != NULL) {
|
| 460 |
js_snprintf(cmtbl[l].dev, sizeof (cmtbl[l].dev),
|
| 461 |
DEV_SROM, ++nSrom);
|
| 462 |
}
|
| 463 |
|
| 464 |
if (strstr(cmtbl[l].typ, T_TAPE) != NULL) {
|
| 465 |
js_snprintf(cmtbl[l].dev, sizeof (cmtbl[l].dev),
|
| 466 |
DEV_STP, ++nStp);
|
| 467 |
}
|
| 468 |
|
| 469 |
if (strstr(cmtbl[l].typ, T_FLOPPY) != NULL) {
|
| 470 |
js_snprintf(cmtbl[l].dev, sizeof (cmtbl[l].dev),
|
| 471 |
DEV_SFLP, ++nSflp);
|
| 472 |
}
|
| 473 |
|
| 474 |
if (scgp->debug > 0) {
|
| 475 |
js_fprintf((FILE *)scgp->errfile,
|
| 476 |
"%-4s = %5s(%d,%d,%d,%d) -> %s\n",
|
| 477 |
cmtbl[l].typ,
|
| 478 |
cmtbl[l].drv,
|
| 479 |
cmtbl[l].hba,
|
| 480 |
cmtbl[l].bus,
|
| 481 |
cmtbl[l].tgt,
|
| 482 |
cmtbl[l].lun,
|
| 483 |
cmtbl[l].dev);
|
| 484 |
}
|
| 485 |
|
| 486 |
}
|
| 487 |
|
| 488 |
if (scgp->debug > 0) {
|
| 489 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 490 |
js_fprintf((FILE *)scgp->errfile, "%2d DISK \n", nSdsk + 1);
|
| 491 |
js_fprintf((FILE *)scgp->errfile, "%2d CD-ROM\n", nSrom + 1);
|
| 492 |
js_fprintf((FILE *)scgp->errfile, "%2d TAPE \n", nStp + 1);
|
| 493 |
js_fprintf((FILE *)scgp->errfile, "%2d FLOPPY\n", nSflp + 1);
|
| 494 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 495 |
}
|
| 496 |
|
| 497 |
/* ok, now let's sort this array of scsi devices */
|
| 498 |
|
| 499 |
qsort((void *) cmtbl, nlm, sizeof (amscsi_t), sort_mscsi);
|
| 500 |
|
| 501 |
if (scgp->debug > 0) {
|
| 502 |
for (l = 0; l < nlm; l++)
|
| 503 |
js_fprintf((FILE *)scgp->errfile,
|
| 504 |
"%-4s = %5s(%d,%d,%d,%d) -> %s\n",
|
| 505 |
cmtbl[l].typ,
|
| 506 |
cmtbl[l].drv,
|
| 507 |
cmtbl[l].hba,
|
| 508 |
cmtbl[l].bus,
|
| 509 |
cmtbl[l].tgt,
|
| 510 |
cmtbl[l].lun,
|
| 511 |
cmtbl[l].dev);
|
| 512 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 513 |
}
|
| 514 |
|
| 515 |
/* find root disk controller to make it scg 0 */
|
| 516 |
|
| 517 |
/*
|
| 518 |
* if we have disk(s) found in the mscsi table, we still
|
| 519 |
* don't know if the rootdisk is among these, there can
|
| 520 |
* be a IDE rootdisk as well, but it's not listed in
|
| 521 |
* the mscsi table.
|
| 522 |
*/
|
| 523 |
|
| 524 |
t = 0;
|
| 525 |
if (nSdsk > 0) {
|
| 526 |
for (l = 0; l < nlm; l++)
|
| 527 |
if (strcmp(cmtbl[l].dev, DEV_ROOT) == 0)
|
| 528 |
t = l;
|
| 529 |
} else {
|
| 530 |
|
| 531 |
/*
|
| 532 |
* we haven't found a disk in mscsi, so we definitely
|
| 533 |
* have an IDE disk on a wd adapter as IDE disks are
|
| 534 |
* not listed as SCSI disks in the kernel mscsi table
|
| 535 |
*/
|
| 536 |
ide_rootdisk = 1;
|
| 537 |
|
| 538 |
}
|
| 539 |
|
| 540 |
if (!(ide_rootdisk) && (scgp->debug > 0)) {
|
| 541 |
js_fprintf((FILE *)scgp->errfile,
|
| 542 |
"root = %5s(%d,%d,%d,%d) -> %s\n",
|
| 543 |
cmtbl[t].drv,
|
| 544 |
cmtbl[t].hba,
|
| 545 |
cmtbl[t].bus,
|
| 546 |
cmtbl[t].tgt,
|
| 547 |
cmtbl[t].lun,
|
| 548 |
cmtbl[t].dev);
|
| 549 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 550 |
}
|
| 551 |
|
| 552 |
/* calculate scg from drv, hba and bus */
|
| 553 |
|
| 554 |
strcpy(drvid, "");
|
| 555 |
|
| 556 |
for (l = 0, s = t; l < nlm; l++, s = (t + l) % nlm) {
|
| 557 |
|
| 558 |
if (strcmp(drvid, cmtbl[s].drv) != 0) {
|
| 559 |
strcpy(drvid, cmtbl[s].drv);
|
| 560 |
lhba = cmtbl[s].hba;
|
| 561 |
lbus = cmtbl[s].bus;
|
| 562 |
cmtbl[s].scg = ++nscg;
|
| 563 |
|
| 564 |
} else if (cmtbl[s].hba != lhba) {
|
| 565 |
lhba = cmtbl[s].hba;
|
| 566 |
lbus = cmtbl[s].bus;
|
| 567 |
cmtbl[s].scg = ++nscg;
|
| 568 |
|
| 569 |
} else if (cmtbl[s].bus != lbus) {
|
| 570 |
lbus = cmtbl[s].bus;
|
| 571 |
cmtbl[s].scg = ++nscg;
|
| 572 |
} else {
|
| 573 |
cmtbl[s].scg = nscg;
|
| 574 |
}
|
| 575 |
sdidevs[cmtbl[s].scg][cmtbl[s].tgt][cmtbl[s].lun].open = 0;
|
| 576 |
|
| 577 |
/* check whether we want to open all devices or it's a CDROM */
|
| 578 |
|
| 579 |
if ((scan_all) || (strcmp(cmtbl[s].typ, T_CDROM) == 0))
|
| 580 |
sdidevs[cmtbl[s].scg][cmtbl[s].tgt][cmtbl[s].lun].valid = 1;
|
| 581 |
|
| 582 |
/* check whether we have an IDE/ATAPI device */
|
| 583 |
|
| 584 |
if (strcmp(cmtbl[s].drv, DRV_ATAPI) == 0)
|
| 585 |
sdidevs[cmtbl[s].scg][cmtbl[s].tgt][cmtbl[s].lun].atapi = 1;
|
| 586 |
|
| 587 |
/* don't open a USB device if enable_usb is not set */
|
| 588 |
|
| 589 |
if (strcmp(cmtbl[s].drv, DRV_USB) == 0)
|
| 590 |
sdidevs[cmtbl[s].scg][cmtbl[s].tgt][cmtbl[s].lun].valid = enable_usb;
|
| 591 |
|
| 592 |
/* don't open a IDE/ATAPI device which is missing but configured */
|
| 593 |
|
| 594 |
if (strcmp(cmtbl[s].drv, DRV_NOHA) == 0)
|
| 595 |
sdidevs[cmtbl[s].scg][cmtbl[s].tgt][cmtbl[s].lun].valid = 0;
|
| 596 |
|
| 597 |
|
| 598 |
sdidevs[cmtbl[s].scg][cmtbl[s].tgt][cmtbl[s].lun].lmscsi = s;
|
| 599 |
|
| 600 |
}
|
| 601 |
|
| 602 |
|
| 603 |
/* open all yet valid device nodes */
|
| 604 |
|
| 605 |
for (s = 0; s < MAX_SCG; s++) {
|
| 606 |
for (t = 0; t < MAX_TGT; t++) {
|
| 607 |
for (l = 0; l < MAX_LUN; l++) {
|
| 608 |
|
| 609 |
if (sdidevs[s][t][l].valid == 0)
|
| 610 |
continue;
|
| 611 |
|
| 612 |
/* Open pass-through device node */
|
| 613 |
|
| 614 |
mscsi = sdidevs[s][t][l].lmscsi;
|
| 615 |
|
| 616 |
strcpy(dname, cmtbl[mscsi].dev);
|
| 617 |
|
| 618 |
/*
|
| 619 |
* ------------------------------------------------------------------
|
| 620 |
* NOTE: If we can't open the device, we will set the device invalid!
|
| 621 |
* ------------------------------------------------------------------
|
| 622 |
*/
|
| 623 |
errno = 0;
|
| 624 |
if ((fd = open(dname, (O_RDONLY | O_NONBLOCK))) < 0) {
|
| 625 |
sdidevs[s][t][l].valid = 0;
|
| 626 |
if (scgp->debug > 0) {
|
| 627 |
js_fprintf((FILE *)scgp->errfile,
|
| 628 |
"%5s(%d,%d,%d,%d) -> %s open() failed: errno = %d (%s)\n",
|
| 629 |
cmtbl[mscsi].drv,
|
| 630 |
cmtbl[mscsi].hba,
|
| 631 |
cmtbl[mscsi].bus,
|
| 632 |
cmtbl[mscsi].tgt,
|
| 633 |
cmtbl[mscsi].lun,
|
| 634 |
cmtbl[mscsi].dev,
|
| 635 |
errno,
|
| 636 |
strerror(errno));
|
| 637 |
}
|
| 638 |
continue;
|
| 639 |
}
|
| 640 |
|
| 641 |
if (scgp->debug > 0) {
|
| 642 |
js_fprintf((FILE *)scgp->errfile,
|
| 643 |
"%d,%d,%d => %5s(%d,%d,%d,%d) -> %d : %s \n",
|
| 644 |
s, t, l,
|
| 645 |
cmtbl[mscsi].drv,
|
| 646 |
cmtbl[mscsi].hba,
|
| 647 |
cmtbl[mscsi].bus,
|
| 648 |
cmtbl[mscsi].tgt,
|
| 649 |
cmtbl[mscsi].lun,
|
| 650 |
cmtbl[mscsi].scg,
|
| 651 |
cmtbl[mscsi].dev);
|
| 652 |
}
|
| 653 |
|
| 654 |
sdidevs[s][t][l].fd = fd;
|
| 655 |
sdidevs[s][t][l].open = 1;
|
| 656 |
nopen++;
|
| 657 |
scglocal(scgp)->scgfiles[s][t][l] = (short) fd;
|
| 658 |
}
|
| 659 |
}
|
| 660 |
}
|
| 661 |
|
| 662 |
if (scgp->debug > 0) {
|
| 663 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 664 |
js_fprintf((FILE *)scgp->errfile, "nopen = %d devices \n", nopen);
|
| 665 |
js_fprintf((FILE *)scgp->errfile, "-------------------- \n");
|
| 666 |
}
|
| 667 |
|
| 668 |
return (nopen);
|
| 669 |
}
|
| 670 |
|
| 671 |
|
| 672 |
LOCAL int
|
| 673 |
scgo_open(scgp, device)
|
| 674 |
SCSI *scgp;
|
| 675 |
char *device;
|
| 676 |
{
|
| 677 |
int busno = scg_scsibus(scgp);
|
| 678 |
int tgt = scg_target(scgp);
|
| 679 |
int tlun = scg_lun(scgp);
|
| 680 |
int f, b, t, l;
|
| 681 |
int nopen = 0;
|
| 682 |
char devname[64];
|
| 683 |
|
| 684 |
if (busno >= MAX_SCG || tgt >= MAX_TGT || tlun >= MAX_LUN) {
|
| 685 |
errno = EINVAL;
|
| 686 |
if (scgp->errstr)
|
| 687 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 688 |
"Illegal value for busno, target or lun '%d,%d,%d'",
|
| 689 |
busno, tgt, tlun);
|
| 690 |
return (-1);
|
| 691 |
}
|
| 692 |
|
| 693 |
if (scgp->local == NULL) {
|
| 694 |
scgp->local = malloc(sizeof (struct scg_local));
|
| 695 |
if (scgp->local == NULL)
|
| 696 |
return (0);
|
| 697 |
|
| 698 |
for (b = 0; b < MAX_SCG; b++) {
|
| 699 |
for (t = 0; t < MAX_TGT; t++) {
|
| 700 |
for (l = 0; l < MAX_LUN; l++)
|
| 701 |
scglocal(scgp)->scgfiles[b][t][l] = (short)-1;
|
| 702 |
}
|
| 703 |
}
|
| 704 |
}
|
| 705 |
|
| 706 |
if (*device != '\0') { /* we don't allow old dev usage */
|
| 707 |
errno = EINVAL;
|
| 708 |
if (scgp->errstr)
|
| 709 |
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
|
| 710 |
"Open by 'devname' no longer supported on this OS");
|
| 711 |
return (-1);
|
| 712 |
}
|
| 713 |
|
| 714 |
return (openserver_init(scgp));
|
| 715 |
|
| 716 |
}
|
| 717 |
|
| 718 |
LOCAL int
|
| 719 |
scgo_close(scgp)
|
| 720 |
SCSI *scgp;
|
| 721 |
{
|
| 722 |
register int f;
|
| 723 |
register int b;
|
| 724 |
register int t;
|
| 725 |
register int l;
|
| 726 |
|
| 727 |
if (scgp->local == NULL)
|
| 728 |
return (-1);
|
| 729 |
|
| 730 |
for (b = 0; b < MAX_SCG; b++) {
|
| 731 |
for (t = 0; t < MAX_TGT; t++) {
|
| 732 |
for (l = 0; l < MAX_LUN; l++) {
|
| 733 |
|
| 734 |
f = scglocal(scgp)->scgfiles[b][t][l];
|
| 735 |
if (f >= 0)
|
| 736 |
close(f);
|
| 737 |
|
| 738 |
sdidevs[b][t][l].fd = -1;
|
| 739 |
sdidevs[b][t][l].open = 0;
|
| 740 |
sdidevs[b][t][l].valid = 0;
|
| 741 |
|
| 742 |
scglocal(scgp)->scgfiles[b][t][l] = (short)-1;
|
| 743 |
}
|
| 744 |
}
|
| 745 |
}
|
| 746 |
return (0);
|
| 747 |
}
|
| 748 |
|
| 749 |
LOCAL long
|
| 750 |
scgo_maxdma(scgp, amt)
|
| 751 |
SCSI *scgp;
|
| 752 |
long amt;
|
| 753 |
{
|
| 754 |
return (max_dma);
|
| 755 |
}
|
| 756 |
|
| 757 |
|
| 758 |
LOCAL void *
|
| 759 |
scgo_getbuf(scgp, amt)
|
| 760 |
SCSI *scgp;
|
| 761 |
long amt;
|
| 762 |
{
|
| 763 |
if (scgp->debug > 0) {
|
| 764 |
js_fprintf((FILE *)scgp->errfile,
|
| 765 |
"scgo_getbuf: %ld bytes\n", amt);
|
| 766 |
}
|
| 767 |
scgp->bufbase = valloc((size_t)(amt));
|
| 768 |
|
| 769 |
return (scgp->bufbase);
|
| 770 |
}
|
| 771 |
|
| 772 |
LOCAL void
|
| 773 |
scgo_freebuf(scgp)
|
| 774 |
SCSI *scgp;
|
| 775 |
{
|
| 776 |
if (scgp->bufbase)
|
| 777 |
free(scgp->bufbase);
|
| 778 |
scgp->bufbase = NULL;
|
| 779 |
}
|
| 780 |
|
| 781 |
LOCAL BOOL
|
| 782 |
scgo_havebus(scgp, busno)
|
| 783 |
SCSI *scgp;
|
| 784 |
int busno;
|
| 785 |
{
|
| 786 |
register int t;
|
| 787 |
register int l;
|
| 788 |
|
| 789 |
if (busno < 0 || busno >= MAX_SCG)
|
| 790 |
return (FALSE);
|
| 791 |
|
| 792 |
if (scgp->local == NULL)
|
| 793 |
return (FALSE);
|
| 794 |
|
| 795 |
for (t = 0; t < MAX_TGT; t++) {
|
| 796 |
for (l = 0; l < MAX_LUN; l++)
|
| 797 |
if (scglocal(scgp)->scgfiles[busno][t][l] >= 0)
|
| 798 |
return (TRUE);
|
| 799 |
}
|
| 800 |
return (FALSE);
|
| 801 |
}
|
| 802 |
|
| 803 |
LOCAL int
|
| 804 |
scgo_fileno(scgp, busno, tgt, tlun)
|
| 805 |
SCSI *scgp;
|
| 806 |
int busno;
|
| 807 |
int tgt;
|
| 808 |
int tlun;
|
| 809 |
{
|
| 810 |
if (busno < 0 || busno >= MAX_SCG ||
|
| 811 |
tgt < 0 || tgt >= MAX_TGT ||
|
| 812 |
tlun < 0 || tlun >= MAX_LUN)
|
| 813 |
return (-1);
|
| 814 |
|
| 815 |
if (scgp->local == NULL)
|
| 816 |
return (-1);
|
| 817 |
|
| 818 |
return ((int)scglocal(scgp)->scgfiles[busno][tgt][tlun]);
|
| 819 |
}
|
| 820 |
|
| 821 |
LOCAL int
|
| 822 |
scgo_initiator_id(scgp)
|
| 823 |
SCSI *scgp;
|
| 824 |
{
|
| 825 |
return (-1);
|
| 826 |
|
| 827 |
/*
|
| 828 |
* We don't know the initiator ID yet, but we can if we parse the
|
| 829 |
* output of the command 'cat /dev/string/cfg | grep "%adapter"'
|
| 830 |
*
|
| 831 |
* Sample line:
|
| 832 |
*
|
| 833 |
* %adapter 0xE800-0xE8FF 11 - type=alad ha=0 bus=0 id=7 fts=sto
|
| 834 |
*
|
| 835 |
* This tells us that the alad controller 0 has an id of 7 !
|
| 836 |
* The parsing should be done in openserver_init().
|
| 837 |
*
|
| 838 |
*/
|
| 839 |
}
|
| 840 |
|
| 841 |
LOCAL int
|
| 842 |
scgo_isatapi(scgp)
|
| 843 |
SCSI *scgp;
|
| 844 |
{
|
| 845 |
return (sdidevs[scg_scsibus(scgp)][scg_target(scgp)][scg_lun(scgp)].atapi);
|
| 846 |
}
|
| 847 |
|
| 848 |
LOCAL int
|
| 849 |
scgo_reset(scgp, what)
|
| 850 |
SCSI *scgp;
|
| 851 |
int what;
|
| 852 |
{
|
| 853 |
errno = EINVAL;
|
| 854 |
return (-1); /* no scsi reset available */
|
| 855 |
}
|
| 856 |
|
| 857 |
LOCAL void
|
| 858 |
cp_scg2sco(sco, scg)
|
| 859 |
struct scsicmd2 *sco;
|
| 860 |
struct scg_cmd *scg;
|
| 861 |
{
|
| 862 |
sco->cmd.data_ptr = (char *) scg->addr;
|
| 863 |
sco->cmd.data_len = scg->size;
|
| 864 |
sco->cmd.cdb_len = scg->cdb_len;
|
| 865 |
|
| 866 |
sco->sense_len = scg->sense_len;
|
| 867 |
sco->sense_ptr = scg->u_sense.cmd_sense;
|
| 868 |
|
| 869 |
if (!(scg->flags & SCG_RECV_DATA) && (scg->size > 0))
|
| 870 |
sco->cmd.is_write = 1;
|
| 871 |
|
| 872 |
if (scg->cdb_len == SC_G0_CDBLEN)
|
| 873 |
memcpy(sco->cmd.cdb, &scg->cdb.g0_cdb, scg->cdb_len);
|
| 874 |
|
| 875 |
if (scg->cdb_len == SC_G1_CDBLEN)
|
| 876 |
memcpy(sco->cmd.cdb, &scg->cdb.g1_cdb, scg->cdb_len);
|
| 877 |
|
| 878 |
if (scg->cdb_len == SC_G5_CDBLEN)
|
| 879 |
memcpy(sco->cmd.cdb, &scg->cdb.g5_cdb, scg->cdb_len);
|
| 880 |
}
|
| 881 |
|
| 882 |
|
| 883 |
LOCAL void
|
| 884 |
cp_sco2scg(sco, scg)
|
| 885 |
struct scsicmd2 *sco;
|
| 886 |
struct scg_cmd *scg;
|
| 887 |
{
|
| 888 |
scg->size = sco->cmd.data_len;
|
| 889 |
|
| 890 |
memset(&scg->scb, 0, sizeof (scg->scb));
|
| 891 |
|
| 892 |
if (sco->sense_len > SCG_MAX_SENSE)
|
| 893 |
scg->sense_count = SCG_MAX_SENSE;
|
| 894 |
else
|
| 895 |
scg->sense_count = sco->sense_len;
|
| 896 |
|
| 897 |
scg->resid = 0;
|
| 898 |
|
| 899 |
scg->u_scb.cmd_scb[0] = sco->cmd.target_sts;
|
| 900 |
|
| 901 |
}
|
| 902 |
|
| 903 |
|
| 904 |
LOCAL int
|
| 905 |
scgo_send(scgp)
|
| 906 |
SCSI *scgp;
|
| 907 |
{
|
| 908 |
struct scg_cmd *sp = scgp->scmd;
|
| 909 |
struct scsicmd2 scsi_cmd;
|
| 910 |
int i;
|
| 911 |
Uchar sense_buf[SCG_MAX_SENSE];
|
| 912 |
|
| 913 |
if (scgp->fd < 0) {
|
| 914 |
sp->error = SCG_FATAL;
|
| 915 |
return (0);
|
| 916 |
}
|
| 917 |
|
| 918 |
memset(&scsi_cmd, 0, sizeof (scsi_cmd));
|
| 919 |
memset(sense_buf, 0, sizeof (sense_buf));
|
| 920 |
scsi_cmd.sense_ptr = sense_buf;
|
| 921 |
scsi_cmd.sense_len = sizeof (sense_buf);
|
| 922 |
cp_scg2sco(&scsi_cmd, sp);
|
| 923 |
|
| 924 |
errno = 0;
|
| 925 |
sp->ux_errno = 0;
|
| 926 |
sp->error = SCG_NO_ERROR;
|
| 927 |
for (;;) {
|
| 928 |
int ioctlStatus;
|
| 929 |
struct scsicmd s_cmd;
|
| 930 |
|
| 931 |
if (scsiusercmd) { /* Use SCSIUSERCMD ioctl() */
|
| 932 |
if (scgp->debug > 1) {
|
| 933 |
js_fprintf((FILE *)scgp->errfile, "calling SCSIUSERCMD ioctl()\n");
|
| 934 |
}
|
| 935 |
|
| 936 |
if ((ioctlStatus = ioctl(scgp->fd, SCSIUSERCMD, &(scsi_cmd.cmd))) < 0) {
|
| 937 |
if (scgp->debug > 1) {
|
| 938 |
js_fprintf((FILE *)scgp->errfile, "returning from SCSIUSERCMD ioctl()\n");
|
| 939 |
}
|
| 940 |
if (errno == EINTR)
|
| 941 |
continue;
|
| 942 |
|
| 943 |
cp_sco2scg(&scsi_cmd, sp);
|
| 944 |
sp->ux_errno = errno;
|
| 945 |
if (errno == 0)
|
| 946 |
sp->ux_errno = EIO;
|
| 947 |
sp->error = SCG_RETRYABLE;
|
| 948 |
|
| 949 |
return (0);
|
| 950 |
}
|
| 951 |
|
| 952 |
if (scgp->debug > 1) {
|
| 953 |
js_fprintf((FILE *)scgp->errfile, "returning from SCSIUSERCMD ioctl()\n");
|
| 954 |
}
|
| 955 |
cp_sco2scg(&scsi_cmd, sp);
|
| 956 |
sp->ux_errno = errno;
|
| 957 |
|
| 958 |
if (scsi_cmd.cmd.target_sts & 0x02) { /* Check Condition & get Sense */
|
| 959 |
|
| 960 |
if (sp->sense_len > SCG_MAX_SENSE)
|
| 961 |
sp->sense_len = SCG_MAX_SENSE;
|
| 962 |
|
| 963 |
memset((caddr_t)&s_cmd, 0, sizeof (s_cmd));
|
| 964 |
|
| 965 |
s_cmd.data_ptr = (caddr_t) sp->u_sense.cmd_sense;
|
| 966 |
s_cmd.data_len = sp->sense_len;
|
| 967 |
s_cmd.is_write = 0;
|
| 968 |
s_cmd.cdb[0] = SC_REQUEST_SENSE;
|
| 969 |
|
| 970 |
while (((ioctlStatus = ioctl(scgp->fd, SCSIUSERCMD, &s_cmd)) < 0) &&
|
| 971 |
(errno == EINTR))
|
| 972 |
;
|
| 973 |
|
| 974 |
sp->sense_count = sp->sense_len;
|
| 975 |
sp->ux_errno = errno;
|
| 976 |
|
| 977 |
if (errno == 0)
|
| 978 |
sp->ux_errno = EIO;
|
| 979 |
sp->error = SCG_NO_ERROR;
|
| 980 |
}
|
| 981 |
|
| 982 |
if (scgp->debug > 0) {
|
| 983 |
if (errno != 0)
|
| 984 |
js_fprintf((FILE *)scgp->errfile, "ux_errno: %d (%s) \n", sp->ux_errno, strerror(sp->ux_errno));
|
| 985 |
if (sp->u_scb.cmd_scb[0] != 0)
|
| 986 |
js_fprintf((FILE *)scgp->errfile, "tgt_stat: %d \n", sp->u_scb.cmd_scb[0]);
|
| 987 |
}
|
| 988 |
break;
|
| 989 |
|
| 990 |
} else { /* Use SCSIUSERCMD2 ioctl() */
|
| 991 |
if (scgp->debug > 1) {
|
| 992 |
js_fprintf((FILE *)scgp->errfile, "calling SCSIUSERCMD2 ioctl()\n");
|
| 993 |
}
|
| 994 |
|
| 995 |
if ((ioctlStatus = ioctl(scgp->fd, SCSIUSERCMD2, &scsi_cmd)) < 0) {
|
| 996 |
if (scgp->debug > 1) {
|
| 997 |
js_fprintf((FILE *)scgp->errfile, "returning from SCSIUSERCMD2 ioctl()\n");
|
| 998 |
}
|
| 999 |
if (errno == EINTR)
|
| 1000 |
continue;
|
| 1001 |
|
| 1002 |
cp_sco2scg(&scsi_cmd, sp);
|
| 1003 |
sp->ux_errno = errno;
|
| 1004 |
if (errno == 0)
|
| 1005 |
sp->ux_errno = EIO;
|
| 1006 |
sp->error = SCG_RETRYABLE;
|
| 1007 |
|
| 1008 |
return (0);
|
| 1009 |
}
|
| 1010 |
if (scgp->debug > 1) {
|
| 1011 |
js_fprintf((FILE *)scgp->errfile, "returning from SCSIUSERCMD2 ioctl()\n");
|
| 1012 |
}
|
| 1013 |
|
| 1014 |
cp_sco2scg(&scsi_cmd, sp);
|
| 1015 |
sp->ux_errno = errno;
|
| 1016 |
|
| 1017 |
if (scsi_cmd.cmd.target_sts & 0x02) { /* Check Condition */
|
| 1018 |
if (errno == 0)
|
| 1019 |
sp->ux_errno = EIO;
|
| 1020 |
sp->error = SCG_NO_ERROR;
|
| 1021 |
}
|
| 1022 |
|
| 1023 |
if (scgp->debug > 0) {
|
| 1024 |
if (errno != 0)
|
| 1025 |
js_fprintf((FILE *)scgp->errfile, "ux_errno: %d (%s) \n", sp->ux_errno, strerror(sp->ux_errno));
|
| 1026 |
if (sp->u_scb.cmd_scb[0] != 0)
|
| 1027 |
js_fprintf((FILE *)scgp->errfile, "tgt_stat: %d \n", sp->u_scb.cmd_scb[0]);
|
| 1028 |
}
|
| 1029 |
break;
|
| 1030 |
|
| 1031 |
}
|
| 1032 |
}
|
| 1033 |
|
| 1034 |
return (0);
|
| 1035 |
}
|
| 1036 |
|
| 1037 |
#define sense u_sense.Sense
|
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