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c220609897
linux-next/drivers/scsi/gdth.c
Alison Schofield 5a412c38bb gdth: replace struct timeval with ktime_get_real_seconds() 
struct timeval will overflow on 32-bit systems in y2038 and is being
removed from the kernel. Replace the use of struct timeval and
do_gettimeofday() with ktime_get_real_seconds() which provides a 64-bit
seconds value and is y2038 safe.

gdth driver requires changes in two areas:

1) gdth_store_event() loads two u32 timestamp fields for ioctl GDTIOCTL_EVENT

   These timestamp fields are part of struct gdth_evt_str used for passing
   event data to userspace. At the first instance of an event we do
   (first_stamp=last_stamp="current time"). If that same event repeats,
   we do (last_stamp="current time") AND increment same_count to indicate
   how many times the event has repeated since first_stamp.

   This patch replaces the use of timeval and do_gettimeofday() with
   ktime_get_real_seconds() cast to u32 to extend the timestamp fields
   to y2106.

   Beyond y2106, the userspace tools (ie. RAID controller monitors) can
   work around the time rollover and this driver would still not need to
   change.

   Alternative: The alternative approach is to introduce a new ioctl in gdth
   with the u32 time fields defined as u64.  This would require userspace
   changes now, but not in y2106.

2)  gdth_show_info() calculates elapsed time using u32 first_stamp

    It is adding events with timestamps to a seq_file.  Timestamps are
    calculated as the "current time" minus the first_stamp.

    This patch replaces the use of timeval and do_gettimeofday() with
    ktime_get_real_seconds() cast to u32 to calculate the timestamp.

    This elapsed time calculation is safe even when the time wraps (beyond
    y2106) due to how unsigned subtraction works. A comment has been added
    to the code to indicate this safety.

    Alternative: This piece itself doesn't warrant an alternative, but
    if we do introduce a new structure & ioctl with u64 timestamps, this
    would change accordingly.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-25 21:16:49 -05:00

5233 lines
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/************************************************************************
* Linux driver for *
* ICP vortex GmbH: GDT ISA/EISA/PCI Disk Array Controllers *
* Intel Corporation: Storage RAID Controllers *
* *
* gdth.c *
* Copyright (C) 1995-06 ICP vortex GmbH, Achim Leubner *
* Copyright (C) 2002-04 Intel Corporation *
* Copyright (C) 2003-06 Adaptec Inc. *
* <achim_leubner@adaptec.com> *
* *
* Additions/Fixes: *
* Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com> *
* Johannes Dinner <johannes_dinner@adaptec.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published *
* by the Free Software Foundation; either version 2 of the License, *
* or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this kernel; if not, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
* *
* Linux kernel 2.6.x supported *
* *
************************************************************************/
/* All GDT Disk Array Controllers are fully supported by this driver.
* This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
* PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete
* list of all controller types.
*
* If you have one or more GDT3000/3020 EISA controllers with
* controller BIOS disabled, you have to set the IRQ values with the
* command line option "gdth=irq1,irq2,...", where the irq1,irq2,... are
* the IRQ values for the EISA controllers.
*
* After the optional list of IRQ values, other possible
* command line options are:
* disable:Y disable driver
* disable:N enable driver
* reserve_mode:0 reserve no drives for the raw service
* reserve_mode:1 reserve all not init., removable drives
* reserve_mode:2 reserve all not init. drives
* reserve_list:h,b,t,l,h,b,t,l,... reserve particular drive(s) with
* h- controller no., b- channel no.,
* t- target ID, l- LUN
* reverse_scan:Y reverse scan order for PCI controllers
* reverse_scan:N scan PCI controllers like BIOS
* max_ids:x x - target ID count per channel (1..MAXID)
* rescan:Y rescan all channels/IDs
* rescan:N use all devices found until now
* hdr_channel:x x - number of virtual bus for host drives
* shared_access:Y disable driver reserve/release protocol to
* access a shared resource from several nodes,
* appropriate controller firmware required
* shared_access:N enable driver reserve/release protocol
* probe_eisa_isa:Y scan for EISA/ISA controllers
* probe_eisa_isa:N do not scan for EISA/ISA controllers
* force_dma32:Y use only 32 bit DMA mode
* force_dma32:N use 64 bit DMA mode, if supported
*
* The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
* max_ids:127,rescan:N,hdr_channel:0,
* shared_access:Y,probe_eisa_isa:N,force_dma32:N".
* Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
*
* When loading the gdth driver as a module, the same options are available.
* You can set the IRQs with "IRQ=...". However, the syntax to specify the
* options changes slightly. You must replace all ',' between options
* with ' ' and all ':' with '=' and you must use
* '1' in place of 'Y' and '0' in place of 'N'.
*
* Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0
* max_ids=127 rescan=0 hdr_channel=0 shared_access=0
* probe_eisa_isa=0 force_dma32=0"
* The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1".
*/
/* The meaning of the Scsi_Pointer members in this driver is as follows:
* ptr: Chaining
* this_residual: unused
* buffer: unused
* dma_handle: unused
* buffers_residual: unused
* Status: unused
* Message: unused
* have_data_in: unused
* sent_command: unused
* phase: unused
*/
/* interrupt coalescing */
/* #define INT_COAL */
/* statistics */
#define GDTH_STATISTICS
#include <linux/module.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/proc_fs.h>
#include <linux/time.h>
#include <linux/timer.h>
#include <linux/dma-mapping.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#ifdef GDTH_RTC
#include <linux/mc146818rtc.h>
#endif
#include <linux/reboot.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/scatterlist.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "gdth.h"
static DEFINE_MUTEX(gdth_mutex);
static void gdth_delay(int milliseconds);
static void gdth_eval_mapping(u32 size, u32 *cyls, int *heads, int *secs);
static irqreturn_t gdth_interrupt(int irq, void *dev_id);
static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
int gdth_from_wait, int* pIndex);
static int gdth_sync_event(gdth_ha_str *ha, int service, u8 index,
Scsi_Cmnd *scp);
static int gdth_async_event(gdth_ha_str *ha);
static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 priority);
static void gdth_next(gdth_ha_str *ha);
static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 b);
static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, u16 source,
u16 idx, gdth_evt_data *evt);
static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
static void gdth_readapp_event(gdth_ha_str *ha, u8 application,
gdth_evt_str *estr);
static void gdth_clear_events(void);
static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
char *buffer, u16 count);
static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u16 hdrive);
static void gdth_enable_int(gdth_ha_str *ha);
static int gdth_test_busy(gdth_ha_str *ha);
static int gdth_get_cmd_index(gdth_ha_str *ha);
static void gdth_release_event(gdth_ha_str *ha);
static int gdth_wait(gdth_ha_str *ha, int index,u32 time);
static int gdth_internal_cmd(gdth_ha_str *ha, u8 service, u16 opcode,
u32 p1, u64 p2,u64 p3);
static int gdth_search_drives(gdth_ha_str *ha);
static int gdth_analyse_hdrive(gdth_ha_str *ha, u16 hdrive);
static const char *gdth_ctr_name(gdth_ha_str *ha);
static int gdth_open(struct inode *inode, struct file *filep);
static int gdth_close(struct inode *inode, struct file *filep);
static long gdth_unlocked_ioctl(struct file *filep, unsigned int cmd,
unsigned long arg);
static void gdth_flush(gdth_ha_str *ha);
static int gdth_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
struct gdth_cmndinfo *cmndinfo);
static void gdth_scsi_done(struct scsi_cmnd *scp);
#ifdef DEBUG_GDTH
static u8 DebugState = DEBUG_GDTH;
#ifdef __SERIAL__
#define MAX_SERBUF 160
static void ser_init(void);
static void ser_puts(char *str);
static void ser_putc(char c);
static int ser_printk(const char *fmt, ...);
static char strbuf[MAX_SERBUF+1];
#ifdef __COM2__
#define COM_BASE 0x2f8
#else
#define COM_BASE 0x3f8
#endif
static void ser_init()
{
unsigned port=COM_BASE;
outb(0x80,port+3);
outb(0,port+1);
/* 19200 Baud, if 9600: outb(12,port) */
outb(6, port);
outb(3,port+3);
outb(0,port+1);
/*
ser_putc('I');
ser_putc(' ');
*/
}
static void ser_puts(char *str)
{
char *ptr;
ser_init();
for (ptr=str;*ptr;++ptr)
ser_putc(*ptr);
}
static void ser_putc(char c)
{
unsigned port=COM_BASE;
while ((inb(port+5) & 0x20)==0);
outb(c,port);
if (c==0x0a)
{
while ((inb(port+5) & 0x20)==0);
outb(0x0d,port);
}
}
static int ser_printk(const char *fmt, ...)
{
va_list args;
int i;
va_start(args,fmt);
i = vsprintf(strbuf,fmt,args);
ser_puts(strbuf);
va_end(args);
return i;
}
#define TRACE(a) {if (DebugState==1) {ser_printk a;}}
#define TRACE2(a) {if (DebugState==1 || DebugState==2) {ser_printk a;}}
#define TRACE3(a) {if (DebugState!=0) {ser_printk a;}}
#else /* !__SERIAL__ */
#define TRACE(a) {if (DebugState==1) {printk a;}}
#define TRACE2(a) {if (DebugState==1 || DebugState==2) {printk a;}}
#define TRACE3(a) {if (DebugState!=0) {printk a;}}
#endif
#else /* !DEBUG */
#define TRACE(a)
#define TRACE2(a)
#define TRACE3(a)
#endif
#ifdef GDTH_STATISTICS
static u32 max_rq=0, max_index=0, max_sg=0;
#ifdef INT_COAL
static u32 max_int_coal=0;
#endif
static u32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
static struct timer_list gdth_timer;
#endif
#define PTR2USHORT(a) (u16)(unsigned long)(a)
#define GDTOFFSOF(a,b) (size_t)&(((a*)0)->b)
#define INDEX_OK(i,t) ((i)<ARRAY_SIZE(t))
#define BUS_L2P(a,b) ((b)>(a)->virt_bus ? (b-1):(b))
#ifdef CONFIG_ISA
static u8 gdth_drq_tab[4] = {5,6,7,7}; /* DRQ table */
#endif
#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
static u8 gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */
#endif
static u8 gdth_polling; /* polling if TRUE */
static int gdth_ctr_count = 0; /* controller count */
static LIST_HEAD(gdth_instances); /* controller list */
static u8 gdth_write_through = FALSE; /* write through */
static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */
static int elastidx;
static int eoldidx;
static int major;
#define DIN 1 /* IN data direction */
#define DOU 2 /* OUT data direction */
#define DNO DIN /* no data transfer */
#define DUN DIN /* unknown data direction */
static u8 gdth_direction_tab[0x100] = {
DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
};
/* LILO and modprobe/insmod parameters */
/* IRQ list for GDT3000/3020 EISA controllers */
static int irq[MAXHA] __initdata =
{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
/* disable driver flag */
static int disable __initdata = 0;
/* reserve flag */
static int reserve_mode = 1;
/* reserve list */
static int reserve_list[MAX_RES_ARGS] =
{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
/* scan order for PCI controllers */
static int reverse_scan = 0;
/* virtual channel for the host drives */
static int hdr_channel = 0;
/* max. IDs per channel */
static int max_ids = MAXID;
/* rescan all IDs */
static int rescan = 0;
/* shared access */
static int shared_access = 1;
/* enable support for EISA and ISA controllers */
static int probe_eisa_isa = 0;
/* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
static int force_dma32 = 0;
/* parameters for modprobe/insmod */
module_param_array(irq, int, NULL, 0);
module_param(disable, int, 0);
module_param(reserve_mode, int, 0);
module_param_array(reserve_list, int, NULL, 0);
module_param(reverse_scan, int, 0);
module_param(hdr_channel, int, 0);
module_param(max_ids, int, 0);
module_param(rescan, int, 0);
module_param(shared_access, int, 0);
module_param(probe_eisa_isa, int, 0);
module_param(force_dma32, int, 0);
MODULE_AUTHOR("Achim Leubner");
MODULE_LICENSE("GPL");
/* ioctl interface */
static const struct file_operations gdth_fops = {
.unlocked_ioctl = gdth_unlocked_ioctl,
.open = gdth_open,
.release = gdth_close,
.llseek = noop_llseek,
};
#include "gdth_proc.h"
#include "gdth_proc.c"
static gdth_ha_str *gdth_find_ha(int hanum)
{
gdth_ha_str *ha;
list_for_each_entry(ha, &gdth_instances, list)
if (hanum == ha->hanum)
return ha;
return NULL;
}
static struct gdth_cmndinfo *gdth_get_cmndinfo(gdth_ha_str *ha)
{
struct gdth_cmndinfo *priv = NULL;
unsigned long flags;
int i;
spin_lock_irqsave(&ha->smp_lock, flags);
for (i=0; i<GDTH_MAXCMDS; ++i) {
if (ha->cmndinfo[i].index == 0) {
priv = &ha->cmndinfo[i];
memset(priv, 0, sizeof(*priv));
priv->index = i+1;
break;
}
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
return priv;
}
static void gdth_put_cmndinfo(struct gdth_cmndinfo *priv)
{
BUG_ON(!priv);
priv->index = 0;
}
static void gdth_delay(int milliseconds)
{
if (milliseconds == 0) {
udelay(1);
} else {
mdelay(milliseconds);
}
}
static void gdth_scsi_done(struct scsi_cmnd *scp)
{
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
int internal_command = cmndinfo->internal_command;
TRACE2(("gdth_scsi_done()\n"));
gdth_put_cmndinfo(cmndinfo);
scp->host_scribble = NULL;
if (internal_command)
complete((struct completion *)scp->request);
else
scp->scsi_done(scp);
}
int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
int timeout, u32 *info)
{
gdth_ha_str *ha = shost_priv(sdev->host);
Scsi_Cmnd *scp;
struct gdth_cmndinfo cmndinfo;
DECLARE_COMPLETION_ONSTACK(wait);
int rval;
scp = kzalloc(sizeof(*scp), GFP_KERNEL);
if (!scp)
return -ENOMEM;
scp->sense_buffer = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
if (!scp->sense_buffer) {
kfree(scp);
return -ENOMEM;
}
scp->device = sdev;
memset(&cmndinfo, 0, sizeof(cmndinfo));
/* use request field to save the ptr. to completion struct. */
scp->request = (struct request *)&wait;
scp->cmd_len = 12;
scp->cmnd = cmnd;
cmndinfo.priority = IOCTL_PRI;
cmndinfo.internal_cmd_str = gdtcmd;
cmndinfo.internal_command = 1;
TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0]));
__gdth_queuecommand(ha, scp, &cmndinfo);
wait_for_completion(&wait);
rval = cmndinfo.status;
if (info)
*info = cmndinfo.info;
kfree(scp->sense_buffer);
kfree(scp);
return rval;
}
int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
int timeout, u32 *info)
{
struct scsi_device *sdev = scsi_get_host_dev(shost);
int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
scsi_free_host_dev(sdev);
return rval;
}
static void gdth_eval_mapping(u32 size, u32 *cyls, int *heads, int *secs)
{
*cyls = size /HEADS/SECS;
if (*cyls <= MAXCYLS) {
*heads = HEADS;
*secs = SECS;
} else { /* too high for 64*32 */
*cyls = size /MEDHEADS/MEDSECS;
if (*cyls <= MAXCYLS) {
*heads = MEDHEADS;
*secs = MEDSECS;
} else { /* too high for 127*63 */
*cyls = size /BIGHEADS/BIGSECS;
*heads = BIGHEADS;
*secs = BIGSECS;
}
}
}
/* controller search and initialization functions */
#ifdef CONFIG_EISA
static int __init gdth_search_eisa(u16 eisa_adr)
{
u32 id;
TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
id = inl(eisa_adr+ID0REG);
if (id == GDT3A_ID || id == GDT3B_ID) { /* GDT3000A or GDT3000B */
if ((inb(eisa_adr+EISAREG) & 8) == 0)
return 0; /* not EISA configured */
return 1;
}
if (id == GDT3_ID) /* GDT3000 */
return 1;
return 0;
}
#endif /* CONFIG_EISA */
#ifdef CONFIG_ISA
static int __init gdth_search_isa(u32 bios_adr)
{
void __iomem *addr;
u32 id;
TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(u32))) != NULL) {
id = readl(addr);
iounmap(addr);
if (id == GDT2_ID) /* GDT2000 */
return 1;
}
return 0;
}
#endif /* CONFIG_ISA */
#ifdef CONFIG_PCI
static bool gdth_search_vortex(u16 device)
{
if (device <= PCI_DEVICE_ID_VORTEX_GDT6555)
return true;
if (device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP &&
device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP)
return true;
if (device == PCI_DEVICE_ID_VORTEX_GDTNEWRX ||
device == PCI_DEVICE_ID_VORTEX_GDTNEWRX2)
return true;
return false;
}
static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out);
static int gdth_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent);
static void gdth_pci_remove_one(struct pci_dev *pdev);
static void gdth_remove_one(gdth_ha_str *ha);
/* Vortex only makes RAID controllers.
* We do not really want to specify all 550 ids here, so wildcard match.
*/
static const struct pci_device_id gdthtable[] = {
{ PCI_VDEVICE(VORTEX, PCI_ANY_ID) },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC) },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC_XSCALE) },
{ } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, gdthtable);
static struct pci_driver gdth_pci_driver = {
.name = "gdth",
.id_table = gdthtable,
.probe = gdth_pci_init_one,
.remove = gdth_pci_remove_one,
};
static void gdth_pci_remove_one(struct pci_dev *pdev)
{
gdth_ha_str *ha = pci_get_drvdata(pdev);
list_del(&ha->list);
gdth_remove_one(ha);
pci_disable_device(pdev);
}
static int gdth_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
u16 vendor = pdev->vendor;
u16 device = pdev->device;
unsigned long base0, base1, base2;
int rc;
gdth_pci_str gdth_pcistr;
gdth_ha_str *ha = NULL;
TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
gdth_ctr_count, vendor, device));
memset(&gdth_pcistr, 0, sizeof(gdth_pcistr));
if (vendor == PCI_VENDOR_ID_VORTEX && !gdth_search_vortex(device))
return -ENODEV;
rc = pci_enable_device(pdev);
if (rc)
return rc;
if (gdth_ctr_count >= MAXHA)
return -EBUSY;
/* GDT PCI controller found, resources are already in pdev */
gdth_pcistr.pdev = pdev;
base0 = pci_resource_flags(pdev, 0);
base1 = pci_resource_flags(pdev, 1);
base2 = pci_resource_flags(pdev, 2);
if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B || /* GDT6000/B */
device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) { /* MPR */
if (!(base0 & IORESOURCE_MEM))
return -ENODEV;
gdth_pcistr.dpmem = pci_resource_start(pdev, 0);
} else { /* GDT6110, GDT6120, .. */
if (!(base0 & IORESOURCE_MEM) ||
!(base2 & IORESOURCE_MEM) ||
!(base1 & IORESOURCE_IO))
return -ENODEV;
gdth_pcistr.dpmem = pci_resource_start(pdev, 2);
gdth_pcistr.io = pci_resource_start(pdev, 1);
}
TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
gdth_pcistr.pdev->bus->number,
PCI_SLOT(gdth_pcistr.pdev->devfn),
gdth_pcistr.irq,
gdth_pcistr.dpmem));
rc = gdth_pci_probe_one(&gdth_pcistr, &ha);
if (rc)
return rc;
return 0;
}
#endif /* CONFIG_PCI */
#ifdef CONFIG_EISA
static int __init gdth_init_eisa(u16 eisa_adr,gdth_ha_str *ha)
{
u32 retries,id;
u8 prot_ver,eisacf,i,irq_found;
TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
/* disable board interrupts, deinitialize services */
outb(0xff,eisa_adr+EDOORREG);
outb(0x00,eisa_adr+EDENABREG);
outb(0x00,eisa_adr+EINTENABREG);
outb(0xff,eisa_adr+LDOORREG);
retries = INIT_RETRIES;
gdth_delay(20);
while (inb(eisa_adr+EDOORREG) != 0xff) {
if (--retries == 0) {
printk("GDT-EISA: Initialization error (DEINIT failed)\n");
return 0;
}
gdth_delay(1);
TRACE2(("wait for DEINIT: retries=%d\n",retries));
}
prot_ver = inb(eisa_adr+MAILBOXREG);
outb(0xff,eisa_adr+EDOORREG);
if (prot_ver != PROTOCOL_VERSION) {
printk("GDT-EISA: Illegal protocol version\n");
return 0;
}
ha->bmic = eisa_adr;
ha->brd_phys = (u32)eisa_adr >> 12;
outl(0,eisa_adr+MAILBOXREG);
outl(0,eisa_adr+MAILBOXREG+4);
outl(0,eisa_adr+MAILBOXREG+8);
outl(0,eisa_adr+MAILBOXREG+12);
/* detect IRQ */
if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
ha->oem_id = OEM_ID_ICP;
ha->type = GDT_EISA;
ha->stype = id;
outl(1,eisa_adr+MAILBOXREG+8);
outb(0xfe,eisa_adr+LDOORREG);
retries = INIT_RETRIES;
gdth_delay(20);
while (inb(eisa_adr+EDOORREG) != 0xfe) {
if (--retries == 0) {
printk("GDT-EISA: Initialization error (get IRQ failed)\n");
return 0;
}
gdth_delay(1);
}
ha->irq = inb(eisa_adr+MAILBOXREG);
outb(0xff,eisa_adr+EDOORREG);
TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
/* check the result */
if (ha->irq == 0) {
TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
for (i = 0, irq_found = FALSE;
i < MAXHA && irq[i] != 0xff; ++i) {
if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
irq_found = TRUE;
break;
}
}
if (irq_found) {
ha->irq = irq[i];
irq[i] = 0;
printk("GDT-EISA: Can not detect controller IRQ,\n");
printk("Use IRQ setting from command line (IRQ = %d)\n",
ha->irq);
} else {
printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
printk("the controller BIOS or use command line parameters\n");
return 0;
}
}
} else {
eisacf = inb(eisa_adr+EISAREG) & 7;
if (eisacf > 4) /* level triggered */
eisacf -= 4;
ha->irq = gdth_irq_tab[eisacf];
ha->oem_id = OEM_ID_ICP;
ha->type = GDT_EISA;
ha->stype = id;
}
ha->dma64_support = 0;
return 1;
}
#endif /* CONFIG_EISA */
#ifdef CONFIG_ISA
static int __init gdth_init_isa(u32 bios_adr,gdth_ha_str *ha)
{
register gdt2_dpram_str __iomem *dp2_ptr;
int i;
u8 irq_drq,prot_ver;
u32 retries;
TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
if (ha->brd == NULL) {
printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
return 0;
}
dp2_ptr = ha->brd;
writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
/* reset interface area */
memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
if (readl(&dp2_ptr->u) != 0) {
printk("GDT-ISA: Initialization error (DPMEM write error)\n");
iounmap(ha->brd);
return 0;
}
/* disable board interrupts, read DRQ and IRQ */
writeb(0xff, &dp2_ptr->io.irqdel);
writeb(0x00, &dp2_ptr->io.irqen);
writeb(0x00, &dp2_ptr->u.ic.S_Status);
writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
irq_drq = readb(&dp2_ptr->io.rq);
for (i=0; i<3; ++i) {
if ((irq_drq & 1)==0)
break;
irq_drq >>= 1;
}
ha->drq = gdth_drq_tab[i];
irq_drq = readb(&dp2_ptr->io.rq) >> 3;
for (i=1; i<5; ++i) {
if ((irq_drq & 1)==0)
break;
irq_drq >>= 1;
}
ha->irq = gdth_irq_tab[i];
/* deinitialize services */
writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
writeb(0, &dp2_ptr->io.event);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
if (--retries == 0) {
printk("GDT-ISA: Initialization error (DEINIT failed)\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
prot_ver = (u8)readl(&dp2_ptr->u.ic.S_Info[0]);
writeb(0, &dp2_ptr->u.ic.Status);
writeb(0xff, &dp2_ptr->io.irqdel);
if (prot_ver != PROTOCOL_VERSION) {
printk("GDT-ISA: Illegal protocol version\n");
iounmap(ha->brd);
return 0;
}
ha->oem_id = OEM_ID_ICP;
ha->type = GDT_ISA;
ha->ic_all_size = sizeof(dp2_ptr->u);
ha->stype= GDT2_ID;
ha->brd_phys = bios_adr >> 4;
/* special request to controller BIOS */
writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
writeb(0, &dp2_ptr->io.event);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
if (--retries == 0) {
printk("GDT-ISA: Initialization error\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
writeb(0, &dp2_ptr->u.ic.Status);
writeb(0xff, &dp2_ptr->io.irqdel);
ha->dma64_support = 0;
return 1;
}
#endif /* CONFIG_ISA */
#ifdef CONFIG_PCI
static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
gdth_ha_str *ha)
{
register gdt6_dpram_str __iomem *dp6_ptr;
register gdt6c_dpram_str __iomem *dp6c_ptr;
register gdt6m_dpram_str __iomem *dp6m_ptr;
u32 retries;
u8 prot_ver;
u16 command;
int i, found = FALSE;
TRACE(("gdth_init_pci()\n"));
if (pdev->vendor == PCI_VENDOR_ID_INTEL)
ha->oem_id = OEM_ID_INTEL;
else
ha->oem_id = OEM_ID_ICP;
ha->brd_phys = (pdev->bus->number << 8) | (pdev->devfn & 0xf8);
ha->stype = (u32)pdev->device;
ha->irq = pdev->irq;
ha->pdev = pdev;
if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) { /* GDT6000/B */
TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
/* check and reset interface area */
dp6_ptr = ha->brd;
writel(DPMEM_MAGIC, &dp6_ptr->u);
if (readl(&dp6_ptr->u) != DPMEM_MAGIC) {
printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
pcistr->dpmem);
found = FALSE;
for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
iounmap(ha->brd);
ha->brd = ioremap(i, sizeof(u16));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
if (readw(ha->brd) != 0xffff) {
TRACE2(("init_pci_old() address 0x%x busy\n", i));
continue;
}
iounmap(ha->brd);
pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
dp6_ptr = ha->brd;
writel(DPMEM_MAGIC, &dp6_ptr->u);
if (readl(&dp6_ptr->u) == DPMEM_MAGIC) {
printk("GDT-PCI: Use free address at 0x%x\n", i);
found = TRUE;
break;
}
}
if (!found) {
printk("GDT-PCI: No free address found!\n");
iounmap(ha->brd);
return 0;
}
}
memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
if (readl(&dp6_ptr->u) != 0) {
printk("GDT-PCI: Initialization error (DPMEM write error)\n");
iounmap(ha->brd);
return 0;
}
/* disable board interrupts, deinit services */
writeb(0xff, &dp6_ptr->io.irqdel);
writeb(0x00, &dp6_ptr->io.irqen);
writeb(0x00, &dp6_ptr->u.ic.S_Status);
writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
writeb(0, &dp6_ptr->io.event);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error (DEINIT failed)\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
prot_ver = (u8)readl(&dp6_ptr->u.ic.S_Info[0]);
writeb(0, &dp6_ptr->u.ic.S_Status);
writeb(0xff, &dp6_ptr->io.irqdel);
if (prot_ver != PROTOCOL_VERSION) {
printk("GDT-PCI: Illegal protocol version\n");
iounmap(ha->brd);
return 0;
}
ha->type = GDT_PCI;
ha->ic_all_size = sizeof(dp6_ptr->u);
/* special command to controller BIOS */
writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
writeb(0, &dp6_ptr->io.event);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
writeb(0, &dp6_ptr->u.ic.S_Status);
writeb(0xff, &dp6_ptr->io.irqdel);
ha->dma64_support = 0;
} else if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
ha->plx = (gdt6c_plx_regs *)pcistr->io;
TRACE2(("init_pci_new() dpmem %lx irq %d\n",
pcistr->dpmem,ha->irq));
ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
iounmap(ha->brd);
return 0;
}
/* check and reset interface area */
dp6c_ptr = ha->brd;
writel(DPMEM_MAGIC, &dp6c_ptr->u);
if (readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
pcistr->dpmem);
found = FALSE;
for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
iounmap(ha->brd);
ha->brd = ioremap(i, sizeof(u16));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
if (readw(ha->brd) != 0xffff) {
TRACE2(("init_pci_plx() address 0x%x busy\n", i));
continue;
}
iounmap(ha->brd);
pci_write_config_dword(pdev, PCI_BASE_ADDRESS_2, i);
ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
dp6c_ptr = ha->brd;
writel(DPMEM_MAGIC, &dp6c_ptr->u);
if (readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
printk("GDT-PCI: Use free address at 0x%x\n", i);
found = TRUE;
break;
}
}
if (!found) {
printk("GDT-PCI: No free address found!\n");
iounmap(ha->brd);
return 0;
}
}
memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
if (readl(&dp6c_ptr->u) != 0) {
printk("GDT-PCI: Initialization error (DPMEM write error)\n");
iounmap(ha->brd);
return 0;
}
/* disable board interrupts, deinit services */
outb(0x00,PTR2USHORT(&ha->plx->control1));
outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
writeb(0x00, &dp6c_ptr->u.ic.S_Status);
writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error (DEINIT failed)\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
prot_ver = (u8)readl(&dp6c_ptr->u.ic.S_Info[0]);
writeb(0, &dp6c_ptr->u.ic.Status);
if (prot_ver != PROTOCOL_VERSION) {
printk("GDT-PCI: Illegal protocol version\n");
iounmap(ha->brd);
return 0;
}
ha->type = GDT_PCINEW;
ha->ic_all_size = sizeof(dp6c_ptr->u);
/* special command to controller BIOS */
writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
writeb(0, &dp6c_ptr->u.ic.S_Status);
ha->dma64_support = 0;
} else { /* MPR */
TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
/* manipulate config. space to enable DPMEM, start RP controller */
pci_read_config_word(pdev, PCI_COMMAND, &command);
command |= 6;
pci_write_config_word(pdev, PCI_COMMAND, command);
gdth_delay(1);
dp6m_ptr = ha->brd;
/* Ensure that it is safe to access the non HW portions of DPMEM.
* Aditional check needed for Xscale based RAID controllers */
while( ((int)readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
gdth_delay(1);
/* check and reset interface area */
writel(DPMEM_MAGIC, &dp6m_ptr->u);
if (readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
pcistr->dpmem);
found = FALSE;
for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
iounmap(ha->brd);
ha->brd = ioremap(i, sizeof(u16));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
if (readw(ha->brd) != 0xffff) {
TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
continue;
}
iounmap(ha->brd);
pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
if (ha->brd == NULL) {
printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
return 0;
}
dp6m_ptr = ha->brd;
writel(DPMEM_MAGIC, &dp6m_ptr->u);
if (readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
printk("GDT-PCI: Use free address at 0x%x\n", i);
found = TRUE;
break;
}
}
if (!found) {
printk("GDT-PCI: No free address found!\n");
iounmap(ha->brd);
return 0;
}
}
memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
/* disable board interrupts, deinit services */
writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
&dp6m_ptr->i960r.edoor_en_reg);
writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
writeb(0x00, &dp6m_ptr->u.ic.S_Status);
writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
writeb(1, &dp6m_ptr->i960r.ldoor_reg);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error (DEINIT failed)\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
prot_ver = (u8)readl(&dp6m_ptr->u.ic.S_Info[0]);
writeb(0, &dp6m_ptr->u.ic.S_Status);
if (prot_ver != PROTOCOL_VERSION) {
printk("GDT-PCI: Illegal protocol version\n");
iounmap(ha->brd);
return 0;
}
ha->type = GDT_PCIMPR;
ha->ic_all_size = sizeof(dp6m_ptr->u);
/* special command to controller BIOS */
writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
writeb(1, &dp6m_ptr->i960r.ldoor_reg);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
writeb(0, &dp6m_ptr->u.ic.S_Status);
/* read FW version to detect 64-bit DMA support */
writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
writeb(1, &dp6m_ptr->i960r.ldoor_reg);
retries = INIT_RETRIES;
gdth_delay(20);
while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
if (--retries == 0) {
printk("GDT-PCI: Initialization error (DEINIT failed)\n");
iounmap(ha->brd);
return 0;
}
gdth_delay(1);
}
prot_ver = (u8)(readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
writeb(0, &dp6m_ptr->u.ic.S_Status);
if (prot_ver < 0x2b) /* FW < x.43: no 64-bit DMA support */
ha->dma64_support = 0;
else
ha->dma64_support = 1;
}
return 1;
}
#endif /* CONFIG_PCI */
/* controller protocol functions */
static void gdth_enable_int(gdth_ha_str *ha)
{
unsigned long flags;
gdt2_dpram_str __iomem *dp2_ptr;
gdt6_dpram_str __iomem *dp6_ptr;
gdt6m_dpram_str __iomem *dp6m_ptr;
TRACE(("gdth_enable_int() hanum %d\n",ha->hanum));
spin_lock_irqsave(&ha->smp_lock, flags);
if (ha->type == GDT_EISA) {
outb(0xff, ha->bmic + EDOORREG);
outb(0xff, ha->bmic + EDENABREG);
outb(0x01, ha->bmic + EINTENABREG);
} else if (ha->type == GDT_ISA) {
dp2_ptr = ha->brd;
writeb(1, &dp2_ptr->io.irqdel);
writeb(0, &dp2_ptr->u.ic.Cmd_Index);
writeb(1, &dp2_ptr->io.irqen);
} else if (ha->type == GDT_PCI) {
dp6_ptr = ha->brd;
writeb(1, &dp6_ptr->io.irqdel);
writeb(0, &dp6_ptr->u.ic.Cmd_Index);
writeb(1, &dp6_ptr->io.irqen);
} else if (ha->type == GDT_PCINEW) {
outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
outb(0x03, PTR2USHORT(&ha->plx->control1));
} else if (ha->type == GDT_PCIMPR) {
dp6m_ptr = ha->brd;
writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
&dp6m_ptr->i960r.edoor_en_reg);
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
/* return IStatus if interrupt was from this card else 0 */
static u8 gdth_get_status(gdth_ha_str *ha)
{
u8 IStatus = 0;
TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count));
if (ha->type == GDT_EISA)
IStatus = inb((u16)ha->bmic + EDOORREG);
else if (ha->type == GDT_ISA)
IStatus =
readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
else if (ha->type == GDT_PCI)
IStatus =
readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
else if (ha->type == GDT_PCINEW)
IStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
else if (ha->type == GDT_PCIMPR)
IStatus =
readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
return IStatus;
}
static int gdth_test_busy(gdth_ha_str *ha)
{
register int gdtsema0 = 0;
TRACE(("gdth_test_busy() hanum %d\n", ha->hanum));
if (ha->type == GDT_EISA)
gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
else if (ha->type == GDT_ISA)
gdtsema0 = (int)readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
else if (ha->type == GDT_PCI)
gdtsema0 = (int)readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
else if (ha->type == GDT_PCINEW)
gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
else if (ha->type == GDT_PCIMPR)
gdtsema0 =
(int)readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
return (gdtsema0 & 1);
}
static int gdth_get_cmd_index(gdth_ha_str *ha)
{
int i;
TRACE(("gdth_get_cmd_index() hanum %d\n", ha->hanum));
for (i=0; i<GDTH_MAXCMDS; ++i) {
if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
ha->cmd_tab[i].service = ha->pccb->Service;
ha->pccb->CommandIndex = (u32)i+2;
return (i+2);
}
}
return 0;
}
static void gdth_set_sema0(gdth_ha_str *ha)
{
TRACE(("gdth_set_sema0() hanum %d\n", ha->hanum));
if (ha->type == GDT_EISA) {
outb(1, ha->bmic + SEMA0REG);
} else if (ha->type == GDT_ISA) {
writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
} else if (ha->type == GDT_PCI) {
writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
} else if (ha->type == GDT_PCINEW) {
outb(1, PTR2USHORT(&ha->plx->sema0_reg));
} else if (ha->type == GDT_PCIMPR) {
writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
}
}
static void gdth_copy_command(gdth_ha_str *ha)
{
register gdth_cmd_str *cmd_ptr;
register gdt6m_dpram_str __iomem *dp6m_ptr;
register gdt6c_dpram_str __iomem *dp6c_ptr;
gdt6_dpram_str __iomem *dp6_ptr;
gdt2_dpram_str __iomem *dp2_ptr;
u16 cp_count,dp_offset,cmd_no;
TRACE(("gdth_copy_command() hanum %d\n", ha->hanum));
cp_count = ha->cmd_len;
dp_offset= ha->cmd_offs_dpmem;
cmd_no = ha->cmd_cnt;
cmd_ptr = ha->pccb;
++ha->cmd_cnt;
if (ha->type == GDT_EISA)
return; /* no DPMEM, no copy */
/* set cpcount dword aligned */
if (cp_count & 3)
cp_count += (4 - (cp_count & 3));
ha->cmd_offs_dpmem += cp_count;
/* set offset and service, copy command to DPMEM */
if (ha->type == GDT_ISA) {
dp2_ptr = ha->brd;
writew(dp_offset + DPMEM_COMMAND_OFFSET,
&dp2_ptr->u.ic.comm_queue[cmd_no].offset);
writew((u16)cmd_ptr->Service,
&dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
} else if (ha->type == GDT_PCI) {
dp6_ptr = ha->brd;
writew(dp_offset + DPMEM_COMMAND_OFFSET,
&dp6_ptr->u.ic.comm_queue[cmd_no].offset);
writew((u16)cmd_ptr->Service,
&dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
} else if (ha->type == GDT_PCINEW) {
dp6c_ptr = ha->brd;
writew(dp_offset + DPMEM_COMMAND_OFFSET,
&dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
writew((u16)cmd_ptr->Service,
&dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
} else if (ha->type == GDT_PCIMPR) {
dp6m_ptr = ha->brd;
writew(dp_offset + DPMEM_COMMAND_OFFSET,
&dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
writew((u16)cmd_ptr->Service,
&dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
}
}
static void gdth_release_event(gdth_ha_str *ha)
{
TRACE(("gdth_release_event() hanum %d\n", ha->hanum));
#ifdef GDTH_STATISTICS
{
u32 i,j;
for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
++i;
}
if (max_index < i) {
max_index = i;
TRACE3(("GDT: max_index = %d\n",(u16)i));
}
}
#endif
if (ha->pccb->OpCode == GDT_INIT)
ha->pccb->Service |= 0x80;
if (ha->type == GDT_EISA) {
if (ha->pccb->OpCode == GDT_INIT) /* store DMA buffer */
outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
outb(ha->pccb->Service, ha->bmic + LDOORREG);
} else if (ha->type == GDT_ISA) {
writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
} else if (ha->type == GDT_PCI) {
writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
} else if (ha->type == GDT_PCINEW) {
outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
} else if (ha->type == GDT_PCIMPR) {
writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
}
}
static int gdth_wait(gdth_ha_str *ha, int index, u32 time)
{
int answer_found = FALSE;
int wait_index = 0;
TRACE(("gdth_wait() hanum %d index %d time %d\n", ha->hanum, index, time));
if (index == 0)
return 1; /* no wait required */
do {
__gdth_interrupt(ha, true, &wait_index);
if (wait_index == index) {
answer_found = TRUE;
break;
}
gdth_delay(1);
} while (--time);
while (gdth_test_busy(ha))
gdth_delay(0);
return (answer_found);
}
static int gdth_internal_cmd(gdth_ha_str *ha, u8 service, u16 opcode,
u32 p1, u64 p2, u64 p3)
{
register gdth_cmd_str *cmd_ptr;
int retries,index;
TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
cmd_ptr = ha->pccb;
memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
/* make command */
for (retries = INIT_RETRIES;;) {
cmd_ptr->Service = service;
cmd_ptr->RequestBuffer = INTERNAL_CMND;
if (!(index=gdth_get_cmd_index(ha))) {
TRACE(("GDT: No free command index found\n"));
return 0;
}
gdth_set_sema0(ha);
cmd_ptr->OpCode = opcode;
cmd_ptr->BoardNode = LOCALBOARD;
if (service == CACHESERVICE) {
if (opcode == GDT_IOCTL) {
cmd_ptr->u.ioctl.subfunc = p1;
cmd_ptr->u.ioctl.channel = (u32)p2;
cmd_ptr->u.ioctl.param_size = (u16)p3;
cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
} else {
if (ha->cache_feat & GDT_64BIT) {
cmd_ptr->u.cache64.DeviceNo = (u16)p1;
cmd_ptr->u.cache64.BlockNo = p2;
} else {
cmd_ptr->u.cache.DeviceNo = (u16)p1;
cmd_ptr->u.cache.BlockNo = (u32)p2;
}
}
} else if (service == SCSIRAWSERVICE) {
if (ha->raw_feat & GDT_64BIT) {
cmd_ptr->u.raw64.direction = p1;
cmd_ptr->u.raw64.bus = (u8)p2;
cmd_ptr->u.raw64.target = (u8)p3;
cmd_ptr->u.raw64.lun = (u8)(p3 >> 8);
} else {
cmd_ptr->u.raw.direction = p1;
cmd_ptr->u.raw.bus = (u8)p2;
cmd_ptr->u.raw.target = (u8)p3;
cmd_ptr->u.raw.lun = (u8)(p3 >> 8);
}
} else if (service == SCREENSERVICE) {
if (opcode == GDT_REALTIME) {
*(u32 *)&cmd_ptr->u.screen.su.data[0] = p1;
*(u32 *)&cmd_ptr->u.screen.su.data[4] = (u32)p2;
*(u32 *)&cmd_ptr->u.screen.su.data[8] = (u32)p3;
}
}
ha->cmd_len = sizeof(gdth_cmd_str);
ha->cmd_offs_dpmem = 0;
ha->cmd_cnt = 0;
gdth_copy_command(ha);
gdth_release_event(ha);
gdth_delay(20);
if (!gdth_wait(ha, index, INIT_TIMEOUT)) {
printk("GDT: Initialization error (timeout service %d)\n",service);
return 0;
}
if (ha->status != S_BSY || --retries == 0)
break;
gdth_delay(1);
}
return (ha->status != S_OK ? 0:1);
}
/* search for devices */
static int gdth_search_drives(gdth_ha_str *ha)
{
u16 cdev_cnt, i;
int ok;
u32 bus_no, drv_cnt, drv_no, j;
gdth_getch_str *chn;
gdth_drlist_str *drl;
gdth_iochan_str *ioc;
gdth_raw_iochan_str *iocr;
gdth_arcdl_str *alst;
gdth_alist_str *alst2;
gdth_oem_str_ioctl *oemstr;
#ifdef INT_COAL
gdth_perf_modes *pmod;
#endif
#ifdef GDTH_RTC
u8 rtc[12];
unsigned long flags;
#endif
TRACE(("gdth_search_drives() hanum %d\n", ha->hanum));
ok = 0;
/* initialize controller services, at first: screen service */
ha->screen_feat = 0;
if (!force_dma32) {
ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_X_INIT_SCR, 0, 0, 0);
if (ok)
ha->screen_feat = GDT_64BIT;
}
if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC))
ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_INIT, 0, 0, 0);
if (!ok) {
printk("GDT-HA %d: Initialization error screen service (code %d)\n",
ha->hanum, ha->status);
return 0;
}
TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
#ifdef GDTH_RTC
/* read realtime clock info, send to controller */
/* 1. wait for the falling edge of update flag */
spin_lock_irqsave(&rtc_lock, flags);
for (j = 0; j < 1000000; ++j)
if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
break;
for (j = 0; j < 1000000; ++j)
if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
break;
/* 2. read info */
do {
for (j = 0; j < 12; ++j)
rtc[j] = CMOS_READ(j);
} while (rtc[0] != CMOS_READ(0));
spin_unlock_irqrestore(&rtc_lock, flags);
TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(u32 *)&rtc[0],
*(u32 *)&rtc[4], *(u32 *)&rtc[8]));
/* 3. send to controller firmware */
gdth_internal_cmd(ha, SCREENSERVICE, GDT_REALTIME, *(u32 *)&rtc[0],
*(u32 *)&rtc[4], *(u32 *)&rtc[8]);
#endif
/* unfreeze all IOs */
gdth_internal_cmd(ha, CACHESERVICE, GDT_UNFREEZE_IO, 0, 0, 0);
/* initialize cache service */
ha->cache_feat = 0;
if (!force_dma32) {
ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INIT_HOST, LINUX_OS,
0, 0);
if (ok)
ha->cache_feat = GDT_64BIT;
}
if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC))
ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_INIT, LINUX_OS, 0, 0);
if (!ok) {
printk("GDT-HA %d: Initialization error cache service (code %d)\n",
ha->hanum, ha->status);
return 0;
}
TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
cdev_cnt = (u16)ha->info;
ha->fw_vers = ha->service;
#ifdef INT_COAL
if (ha->type == GDT_PCIMPR) {
/* set perf. modes */
pmod = (gdth_perf_modes *)ha->pscratch;
pmod->version = 1;
pmod->st_mode = 1; /* enable one status buffer */
*((u64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
pmod->st_buff_indx1 = COALINDEX;
pmod->st_buff_addr2 = 0;
pmod->st_buff_u_addr2 = 0;
pmod->st_buff_indx2 = 0;
pmod->st_buff_size = sizeof(gdth_coal_status) * MAXOFFSETS;
pmod->cmd_mode = 0; // disable all cmd buffers
pmod->cmd_buff_addr1 = 0;
pmod->cmd_buff_u_addr1 = 0;
pmod->cmd_buff_indx1 = 0;
pmod->cmd_buff_addr2 = 0;
pmod->cmd_buff_u_addr2 = 0;
pmod->cmd_buff_indx2 = 0;
pmod->cmd_buff_size = 0;
pmod->reserved1 = 0;
pmod->reserved2 = 0;
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, SET_PERF_MODES,
INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
printk("GDT-HA %d: Interrupt coalescing activated\n", ha->hanum);
}
}
#endif
/* detect number of buses - try new IOCTL */
iocr = (gdth_raw_iochan_str *)ha->pscratch;
iocr->hdr.version = 0xffffffff;
iocr->hdr.list_entries = MAXBUS;
iocr->hdr.first_chan = 0;
iocr->hdr.last_chan = MAXBUS-1;
iocr->hdr.list_offset = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_RAW_DESC,
INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
TRACE2(("IOCHAN_RAW_DESC supported!\n"));
ha->bus_cnt = iocr->hdr.chan_count;
for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
if (iocr->list[bus_no].proc_id < MAXID)
ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
else
ha->bus_id[bus_no] = 0xff;
}
} else {
/* old method */
chn = (gdth_getch_str *)ha->pscratch;
for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
chn->channel_no = bus_no;
if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
SCSI_CHAN_CNT | L_CTRL_PATTERN,
IO_CHANNEL | INVALID_CHANNEL,
sizeof(gdth_getch_str))) {
if (bus_no == 0) {
printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
ha->hanum, ha->status);
return 0;
}
break;
}
if (chn->siop_id < MAXID)
ha->bus_id[bus_no] = chn->siop_id;
else
ha->bus_id[bus_no] = 0xff;
}
ha->bus_cnt = (u8)bus_no;
}
TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
/* read cache configuration */
if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_INFO,
INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
printk("GDT-HA %d: Initialization error cache service (code %d)\n",
ha->hanum, ha->status);
return 0;
}
ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
ha->cpar.write_back,ha->cpar.block_size));
/* read board info and features */
ha->more_proc = FALSE;
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_INFO,
INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
sizeof(gdth_binfo_str));
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_FEATURES,
INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
ha->more_proc = TRUE;
}
} else {
TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
strcpy(ha->binfo.type_string, gdth_ctr_name(ha));
}
TRACE2(("Controller name: %s\n",ha->binfo.type_string));
/* read more informations */
if (ha->more_proc) {
/* physical drives, channel addresses */
ioc = (gdth_iochan_str *)ha->pscratch;
ioc->hdr.version = 0xffffffff;
ioc->hdr.list_entries = MAXBUS;
ioc->hdr.first_chan = 0;
ioc->hdr.last_chan = MAXBUS-1;
ioc->hdr.list_offset = GDTOFFSOF(gdth_iochan_str, list[0]);
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_DESC,
INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
ha->raw[bus_no].address = ioc->list[bus_no].address;
ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
}
} else {
for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
ha->raw[bus_no].address = IO_CHANNEL;
ha->raw[bus_no].local_no = bus_no;
}
}
for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
chn = (gdth_getch_str *)ha->pscratch;
chn->channel_no = ha->raw[bus_no].local_no;
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
SCSI_CHAN_CNT | L_CTRL_PATTERN,
ha->raw[bus_no].address | INVALID_CHANNEL,
sizeof(gdth_getch_str))) {
ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
TRACE2(("Channel %d: %d phys. drives\n",
bus_no,chn->drive_cnt));
}
if (ha->raw[bus_no].pdev_cnt > 0) {
drl = (gdth_drlist_str *)ha->pscratch;
drl->sc_no = ha->raw[bus_no].local_no;
drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
SCSI_DR_LIST | L_CTRL_PATTERN,
ha->raw[bus_no].address | INVALID_CHANNEL,
sizeof(gdth_drlist_str))) {
for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
ha->raw[bus_no].id_list[j] = drl->sc_list[j];
} else {
ha->raw[bus_no].pdev_cnt = 0;
}
}
}
/* logical drives */
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_CNT,
INVALID_CHANNEL,sizeof(u32))) {
drv_cnt = *(u32 *)ha->pscratch;
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_LIST,
INVALID_CHANNEL,drv_cnt * sizeof(u32))) {
for (j = 0; j < drv_cnt; ++j) {
drv_no = ((u32 *)ha->pscratch)[j];
if (drv_no < MAX_LDRIVES) {
ha->hdr[drv_no].is_logdrv = TRUE;
TRACE2(("Drive %d is log. drive\n",drv_no));
}
}
}
alst = (gdth_arcdl_str *)ha->pscratch;
alst->entries_avail = MAX_LDRIVES;
alst->first_entry = 0;
alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
(alst->entries_avail-1) * sizeof(gdth_alist_str))) {
for (j = 0; j < alst->entries_init; ++j) {
ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
ha->hdr[j].is_master = alst->list[j].is_master;
ha->hdr[j].is_parity = alst->list[j].is_parity;
ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
ha->hdr[j].master_no = alst->list[j].cd_handle;
}
} else if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
ARRAY_DRV_LIST | LA_CTRL_PATTERN,
0, 35 * sizeof(gdth_alist_str))) {
for (j = 0; j < 35; ++j) {
alst2 = &((gdth_alist_str *)ha->pscratch)[j];
ha->hdr[j].is_arraydrv = alst2->is_arrayd;
ha->hdr[j].is_master = alst2->is_master;
ha->hdr[j].is_parity = alst2->is_parity;
ha->hdr[j].is_hotfix = alst2->is_hotfix;
ha->hdr[j].master_no = alst2->cd_handle;
}
}
}
}
/* initialize raw service */
ha->raw_feat = 0;
if (!force_dma32) {
ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_X_INIT_RAW, 0, 0, 0);
if (ok)
ha->raw_feat = GDT_64BIT;
}
if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC))
ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_INIT, 0, 0, 0);
if (!ok) {
printk("GDT-HA %d: Initialization error raw service (code %d)\n",
ha->hanum, ha->status);
return 0;
}
TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
/* set/get features raw service (scatter/gather) */
if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_SET_FEAT, SCATTER_GATHER,
0, 0)) {
TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_GET_FEAT, 0, 0, 0)) {
TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
ha->info));
ha->raw_feat |= (u16)ha->info;
}
}
/* set/get features cache service (equal to raw service) */
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_SET_FEAT, 0,
SCATTER_GATHER,0)) {
TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_GET_FEAT, 0, 0, 0)) {
TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
ha->info));
ha->cache_feat |= (u16)ha->info;
}
}
/* reserve drives for raw service */
if (reserve_mode != 0) {
gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE_ALL,
reserve_mode == 1 ? 1 : 3, 0, 0);
TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
ha->status));
}
for (i = 0; i < MAX_RES_ARGS; i += 4) {
if (reserve_list[i] == ha->hanum && reserve_list[i+1] < ha->bus_cnt &&
reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
reserve_list[i], reserve_list[i+1],
reserve_list[i+2], reserve_list[i+3]));
if (!gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE, 0,
reserve_list[i+1], reserve_list[i+2] |
(reserve_list[i+3] << 8))) {
printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
ha->hanum, ha->status);
}
}
}
/* Determine OEM string using IOCTL */
oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
oemstr->params.ctl_version = 0x01;
oemstr->params.buffer_size = sizeof(oemstr->text);
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
sizeof(gdth_oem_str_ioctl))) {
TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
printk("GDT-HA %d: Vendor: %s Name: %s\n",
ha->hanum, oemstr->text.oem_company_name, ha->binfo.type_string);
/* Save the Host Drive inquiry data */
strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
sizeof(ha->oem_name));
} else {
/* Old method, based on PCI ID */
TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
printk("GDT-HA %d: Name: %s\n",
ha->hanum, ha->binfo.type_string);
if (ha->oem_id == OEM_ID_INTEL)
strlcpy(ha->oem_name,"Intel ", sizeof(ha->oem_name));
else
strlcpy(ha->oem_name,"ICP ", sizeof(ha->oem_name));
}
/* scanning for host drives */
for (i = 0; i < cdev_cnt; ++i)
gdth_analyse_hdrive(ha, i);
TRACE(("gdth_search_drives() OK\n"));
return 1;
}
static int gdth_analyse_hdrive(gdth_ha_str *ha, u16 hdrive)
{
u32 drv_cyls;
int drv_hds, drv_secs;
TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n", ha->hanum, hdrive));
if (hdrive >= MAX_HDRIVES)
return 0;
if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_INFO, hdrive, 0, 0))
return 0;
ha->hdr[hdrive].present = TRUE;
ha->hdr[hdrive].size = ha->info;
/* evaluate mapping (sectors per head, heads per cylinder) */
ha->hdr[hdrive].size &= ~SECS32;
if (ha->info2 == 0) {
gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
} else {
drv_hds = ha->info2 & 0xff;
drv_secs = (ha->info2 >> 8) & 0xff;
drv_cyls = (u32)ha->hdr[hdrive].size / drv_hds / drv_secs;
}
ha->hdr[hdrive].heads = (u8)drv_hds;
ha->hdr[hdrive].secs = (u8)drv_secs;
/* round size */
ha->hdr[hdrive].size = drv_cyls * drv_hds * drv_secs;
if (ha->cache_feat & GDT_64BIT) {
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INFO, hdrive, 0, 0)
&& ha->info2 != 0) {
ha->hdr[hdrive].size = ((u64)ha->info2 << 32) | ha->info;
}
}
TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
/* get informations about device */
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_DEVTYPE, hdrive, 0, 0)) {
TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
hdrive,ha->info));
ha->hdr[hdrive].devtype = (u16)ha->info;
}
/* cluster info */
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_CLUST_INFO, hdrive, 0, 0)) {
TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
hdrive,ha->info));
if (!shared_access)
ha->hdr[hdrive].cluster_type = (u8)ha->info;
}
/* R/W attributes */
if (gdth_internal_cmd(ha, CACHESERVICE, GDT_RW_ATTRIBS, hdrive, 0, 0)) {
TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
hdrive,ha->info));
ha->hdr[hdrive].rw_attribs = (u8)ha->info;
}
return 1;
}
/* command queueing/sending functions */
static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 priority)
{
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
register Scsi_Cmnd *pscp;
register Scsi_Cmnd *nscp;
unsigned long flags;
TRACE(("gdth_putq() priority %d\n",priority));
spin_lock_irqsave(&ha->smp_lock, flags);
if (!cmndinfo->internal_command)
cmndinfo->priority = priority;
if (ha->req_first==NULL) {
ha->req_first = scp; /* queue was empty */
scp->SCp.ptr = NULL;
} else { /* queue not empty */
pscp = ha->req_first;
nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
/* priority: 0-highest,..,0xff-lowest */
while (nscp && gdth_cmnd_priv(nscp)->priority <= priority) {
pscp = nscp;
nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
}
pscp->SCp.ptr = (char *)scp;
scp->SCp.ptr = (char *)nscp;
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
#ifdef GDTH_STATISTICS
flags = 0;
for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
++flags;
if (max_rq < flags) {
max_rq = flags;
TRACE3(("GDT: max_rq = %d\n",(u16)max_rq));
}
#endif
}
static void gdth_next(gdth_ha_str *ha)
{
register Scsi_Cmnd *pscp;
register Scsi_Cmnd *nscp;
u8 b, t, l, firsttime;
u8 this_cmd, next_cmd;
unsigned long flags = 0;
int cmd_index;
TRACE(("gdth_next() hanum %d\n", ha->hanum));
if (!gdth_polling)
spin_lock_irqsave(&ha->smp_lock, flags);
ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
this_cmd = firsttime = TRUE;
next_cmd = gdth_polling ? FALSE:TRUE;
cmd_index = 0;
for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
struct gdth_cmndinfo *nscp_cmndinfo = gdth_cmnd_priv(nscp);
if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
if (!nscp_cmndinfo->internal_command) {
b = nscp->device->channel;
t = nscp->device->id;
l = nscp->device->lun;
if (nscp_cmndinfo->priority >= DEFAULT_PRI) {
if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
(b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
continue;
}
} else
b = t = l = 0;
if (firsttime) {
if (gdth_test_busy(ha)) { /* controller busy ? */
TRACE(("gdth_next() controller %d busy !\n", ha->hanum));
if (!gdth_polling) {
spin_unlock_irqrestore(&ha->smp_lock, flags);
return;
}
while (gdth_test_busy(ha))
gdth_delay(1);
}
firsttime = FALSE;
}
if (!nscp_cmndinfo->internal_command) {
if (nscp_cmndinfo->phase == -1) {
nscp_cmndinfo->phase = CACHESERVICE; /* default: cache svc. */
if (nscp->cmnd[0] == TEST_UNIT_READY) {
TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
b, t, l));
/* TEST_UNIT_READY -> set scan mode */
if ((ha->scan_mode & 0x0f) == 0) {
if (b == 0 && t == 0 && l == 0) {
ha->scan_mode |= 1;
TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
}
} else if ((ha->scan_mode & 0x0f) == 1) {
if (b == 0 && ((t == 0 && l == 1) ||
(t == 1 && l == 0))) {
nscp_cmndinfo->OpCode = GDT_SCAN_START;
nscp_cmndinfo->phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
| SCSIRAWSERVICE;
ha->scan_mode = 0x12;
TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
ha->scan_mode));
} else {
ha->scan_mode &= 0x10;
TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
}
} else if (ha->scan_mode == 0x12) {
if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
nscp_cmndinfo->phase = SCSIRAWSERVICE;
nscp_cmndinfo->OpCode = GDT_SCAN_END;
ha->scan_mode &= 0x10;
TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
ha->scan_mode));
}
}
}
if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
(ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
/* always GDT_CLUST_INFO! */
nscp_cmndinfo->OpCode = GDT_CLUST_INFO;
}
}
}
if (nscp_cmndinfo->OpCode != -1) {
if ((nscp_cmndinfo->phase & 0xff) == CACHESERVICE) {
if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
this_cmd = FALSE;
next_cmd = FALSE;
} else if ((nscp_cmndinfo->phase & 0xff) == SCSIRAWSERVICE) {
if (!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
this_cmd = FALSE;
next_cmd = FALSE;
} else {
memset((char*)nscp->sense_buffer,0,16);
nscp->sense_buffer[0] = 0x70;
nscp->sense_buffer[2] = NOT_READY;
nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
if (!nscp_cmndinfo->wait_for_completion)
nscp_cmndinfo->wait_for_completion++;
else
gdth_scsi_done(nscp);
}
} else if (gdth_cmnd_priv(nscp)->internal_command) {
if (!(cmd_index=gdth_special_cmd(ha, nscp)))
this_cmd = FALSE;
next_cmd = FALSE;
} else if (b != ha->virt_bus) {
if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
this_cmd = FALSE;
else
ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
} else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
nscp->cmnd[0], b, t, l));
nscp->result = DID_BAD_TARGET << 16;
if (!nscp_cmndinfo->wait_for_completion)
nscp_cmndinfo->wait_for_completion++;
else
gdth_scsi_done(nscp);
} else {
switch (nscp->cmnd[0]) {
case TEST_UNIT_READY:
case INQUIRY:
case REQUEST_SENSE:
case READ_CAPACITY:
case VERIFY:
case START_STOP:
case MODE_SENSE:
case SERVICE_ACTION_IN_16:
TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
nscp->cmnd[4],nscp->cmnd[5]));
if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
/* return UNIT_ATTENTION */
TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
nscp->cmnd[0], t));
ha->hdr[t].media_changed = FALSE;
memset((char*)nscp->sense_buffer,0,16);
nscp->sense_buffer[0] = 0x70;
nscp->sense_buffer[2] = UNIT_ATTENTION;
nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
if (!nscp_cmndinfo->wait_for_completion)
nscp_cmndinfo->wait_for_completion++;
else
gdth_scsi_done(nscp);
} else if (gdth_internal_cache_cmd(ha, nscp))
gdth_scsi_done(nscp);
break;
case ALLOW_MEDIUM_REMOVAL:
TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
nscp->cmnd[4],nscp->cmnd[5]));
if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
TRACE(("Prevent r. nonremov. drive->do nothing\n"));
nscp->result = DID_OK << 16;
nscp->sense_buffer[0] = 0;
if (!nscp_cmndinfo->wait_for_completion)
nscp_cmndinfo->wait_for_completion++;
else
gdth_scsi_done(nscp);
} else {
nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
TRACE(("Prevent/allow r. %d rem. drive %d\n",
nscp->cmnd[4],nscp->cmnd[3]));
if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
this_cmd = FALSE;
}
break;
case RESERVE:
case RELEASE:
TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
"RESERVE" : "RELEASE"));
if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
this_cmd = FALSE;
break;
case READ_6:
case WRITE_6:
case READ_10:
case WRITE_10:
case READ_16:
case WRITE_16:
if (ha->hdr[t].media_changed) {
/* return UNIT_ATTENTION */
TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
nscp->cmnd[0], t));
ha->hdr[t].media_changed = FALSE;
memset((char*)nscp->sense_buffer,0,16);
nscp->sense_buffer[0] = 0x70;
nscp->sense_buffer[2] = UNIT_ATTENTION;
nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
if (!nscp_cmndinfo->wait_for_completion)
nscp_cmndinfo->wait_for_completion++;
else
gdth_scsi_done(nscp);
} else if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
this_cmd = FALSE;
break;
default:
TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
nscp->cmnd[4],nscp->cmnd[5]));
printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
ha->hanum, nscp->cmnd[0]);
nscp->result = DID_ABORT << 16;
if (!nscp_cmndinfo->wait_for_completion)
nscp_cmndinfo->wait_for_completion++;
else
gdth_scsi_done(nscp);
break;
}
}
if (!this_cmd)
break;
if (nscp == ha->req_first)
ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
else
pscp->SCp.ptr = nscp->SCp.ptr;
if (!next_cmd)
break;
}
if (ha->cmd_cnt > 0) {
gdth_release_event(ha);
}
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
if (gdth_polling && ha->cmd_cnt > 0) {
if (!gdth_wait(ha, cmd_index, POLL_TIMEOUT))
printk("GDT-HA %d: Command %d timed out !\n",
ha->hanum, cmd_index);
}
}
/*
* gdth_copy_internal_data() - copy to/from a buffer onto a scsi_cmnd's
* buffers, kmap_atomic() as needed.
*/
static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
char *buffer, u16 count)
{
u16 cpcount,i, max_sg = scsi_sg_count(scp);
u16 cpsum,cpnow;
struct scatterlist *sl;
char *address;
cpcount = min_t(u16, count, scsi_bufflen(scp));
if (cpcount) {
cpsum=0;
scsi_for_each_sg(scp, sl, max_sg, i) {
unsigned long flags;
cpnow = (u16)sl->length;
TRACE(("copy_internal() now %d sum %d count %d %d\n",
cpnow, cpsum, cpcount, scsi_bufflen(scp)));
if (cpsum+cpnow > cpcount)
cpnow = cpcount - cpsum;
cpsum += cpnow;
if (!sg_page(sl)) {
printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
ha->hanum);
return;
}
local_irq_save(flags);
address = kmap_atomic(sg_page(sl)) + sl->offset;
memcpy(address, buffer, cpnow);
flush_dcache_page(sg_page(sl));
kunmap_atomic(address);
local_irq_restore(flags);
if (cpsum == cpcount)
break;
buffer += cpnow;
}
} else if (count) {
printk("GDT-HA %d: SCSI command with no buffers but data transfer expected!\n",
ha->hanum);
WARN_ON(1);
}
}
static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
{
u8 t;
gdth_inq_data inq;
gdth_rdcap_data rdc;
gdth_sense_data sd;
gdth_modep_data mpd;
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
t = scp->device->id;
TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
scp->cmnd[0],t));
scp->result = DID_OK << 16;
scp->sense_buffer[0] = 0;
switch (scp->cmnd[0]) {
case TEST_UNIT_READY:
case VERIFY:
case START_STOP:
TRACE2(("Test/Verify/Start hdrive %d\n",t));
break;
case INQUIRY:
TRACE2(("Inquiry hdrive %d devtype %d\n",
t,ha->hdr[t].devtype));
inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
/* you can here set all disks to removable, if you want to do
a flush using the ALLOW_MEDIUM_REMOVAL command */
inq.modif_rmb = 0x00;
if ((ha->hdr[t].devtype & 1) ||
(ha->hdr[t].cluster_type & CLUSTER_DRIVE))
inq.modif_rmb = 0x80;
inq.version = 2;
inq.resp_aenc = 2;
inq.add_length= 32;
strcpy(inq.vendor,ha->oem_name);
sprintf(inq.product,"Host Drive #%02d",t);
strcpy(inq.revision," ");
gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data));
break;
case REQUEST_SENSE:
TRACE2(("Request sense hdrive %d\n",t));
sd.errorcode = 0x70;
sd.segno = 0x00;
sd.key = NO_SENSE;
sd.info = 0;
sd.add_length= 0;
gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data));
break;
case MODE_SENSE:
TRACE2(("Mode sense hdrive %d\n",t));
memset((char*)&mpd,0,sizeof(gdth_modep_data));
mpd.hd.data_length = sizeof(gdth_modep_data);
mpd.hd.dev_par = (ha->hdr[t].devtype&2) ? 0x80:0;
mpd.hd.bd_length = sizeof(mpd.bd);
mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data));
break;
case READ_CAPACITY:
TRACE2(("Read capacity hdrive %d\n",t));
if (ha->hdr[t].size > (u64)0xffffffff)
rdc.last_block_no = 0xffffffff;
else
rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
rdc.block_length = cpu_to_be32(SECTOR_SIZE);
gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data));
break;
case SERVICE_ACTION_IN_16:
if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
(ha->cache_feat & GDT_64BIT)) {
gdth_rdcap16_data rdc16;
TRACE2(("Read capacity (16) hdrive %d\n",t));
rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
rdc16.block_length = cpu_to_be32(SECTOR_SIZE);
gdth_copy_internal_data(ha, scp, (char*)&rdc16,
sizeof(gdth_rdcap16_data));
} else {
scp->result = DID_ABORT << 16;
}
break;
default:
TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
break;
}
if (!cmndinfo->wait_for_completion)
cmndinfo->wait_for_completion++;
else
return 1;
return 0;
}
static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u16 hdrive)
{
register gdth_cmd_str *cmdp;
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
u32 cnt, blockcnt;
u64 no, blockno;
int i, cmd_index, read_write, sgcnt, mode64;
cmdp = ha->pccb;
TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
scp->cmnd[0],scp->cmd_len,hdrive));
if (ha->type==GDT_EISA && ha->cmd_cnt>0)
return 0;
mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
/* test for READ_16, WRITE_16 if !mode64 ? ---
not required, should not occur due to error return on
READ_CAPACITY_16 */
cmdp->Service = CACHESERVICE;
cmdp->RequestBuffer = scp;
/* search free command index */
if (!(cmd_index=gdth_get_cmd_index(ha))) {
TRACE(("GDT: No free command index found\n"));
return 0;
}
/* if it's the first command, set command semaphore */
if (ha->cmd_cnt == 0)
gdth_set_sema0(ha);
/* fill command */
read_write = 0;
if (cmndinfo->OpCode != -1)
cmdp->OpCode = cmndinfo->OpCode; /* special cache cmd. */
else if (scp->cmnd[0] == RESERVE)
cmdp->OpCode = GDT_RESERVE_DRV;
else if (scp->cmnd[0] == RELEASE)
cmdp->OpCode = GDT_RELEASE_DRV;
else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
if (scp->cmnd[4] & 1) /* prevent ? */
cmdp->OpCode = GDT_MOUNT;
else if (scp->cmnd[3] & 1) /* removable drive ? */
cmdp->OpCode = GDT_UNMOUNT;
else
cmdp->OpCode = GDT_FLUSH;
} else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
) {
read_write = 1;
if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
(ha->cache_feat & GDT_WR_THROUGH)))
cmdp->OpCode = GDT_WRITE_THR;
else
cmdp->OpCode = GDT_WRITE;
} else {
read_write = 2;
cmdp->OpCode = GDT_READ;
}
cmdp->BoardNode = LOCALBOARD;
if (mode64) {
cmdp->u.cache64.DeviceNo = hdrive;
cmdp->u.cache64.BlockNo = 1;
cmdp->u.cache64.sg_canz = 0;
} else {
cmdp->u.cache.DeviceNo = hdrive;
cmdp->u.cache.BlockNo = 1;
cmdp->u.cache.sg_canz = 0;
}
if (read_write) {
if (scp->cmd_len == 16) {
memcpy(&no, &scp->cmnd[2], sizeof(u64));
blockno = be64_to_cpu(no);
memcpy(&cnt, &scp->cmnd[10], sizeof(u32));
blockcnt = be32_to_cpu(cnt);
} else if (scp->cmd_len == 10) {
memcpy(&no, &scp->cmnd[2], sizeof(u32));
blockno = be32_to_cpu(no);
memcpy(&cnt, &scp->cmnd[7], sizeof(u16));
blockcnt = be16_to_cpu(cnt);
} else {
memcpy(&no, &scp->cmnd[0], sizeof(u32));
blockno = be32_to_cpu(no) & 0x001fffffUL;
blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
}
if (mode64) {
cmdp->u.cache64.BlockNo = blockno;
cmdp->u.cache64.BlockCnt = blockcnt;
} else {
cmdp->u.cache.BlockNo = (u32)blockno;
cmdp->u.cache.BlockCnt = blockcnt;
}
if (scsi_bufflen(scp)) {
cmndinfo->dma_dir = (read_write == 1 ?
PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (mode64) {
struct scatterlist *sl;
cmdp->u.cache64.DestAddr= (u64)-1;
cmdp->u.cache64.sg_canz = sgcnt;
scsi_for_each_sg(scp, sl, sgcnt, i) {
cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
#ifdef GDTH_DMA_STATISTICS
if (cmdp->u.cache64.sg_lst[i].sg_ptr > (u64)0xffffffff)
ha->dma64_cnt++;
else
ha->dma32_cnt++;
#endif
cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
}
} else {
struct scatterlist *sl;
cmdp->u.cache.DestAddr= 0xffffffff;
cmdp->u.cache.sg_canz = sgcnt;
scsi_for_each_sg(scp, sl, sgcnt, i) {
cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
#ifdef GDTH_DMA_STATISTICS
ha->dma32_cnt++;
#endif
cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
}
}
#ifdef GDTH_STATISTICS
if (max_sg < (u32)sgcnt) {
max_sg = (u32)sgcnt;
TRACE3(("GDT: max_sg = %d\n",max_sg));
}
#endif
}
}
/* evaluate command size, check space */
if (mode64) {
TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
cmdp->u.cache64.sg_lst[0].sg_ptr,
cmdp->u.cache64.sg_lst[0].sg_len));
TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
(u16)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
} else {
TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
cmdp->u.cache.sg_lst[0].sg_ptr,
cmdp->u.cache.sg_lst[0].sg_len));
TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
(u16)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
}
if (ha->cmd_len & 3)
ha->cmd_len += (4 - (ha->cmd_len & 3));
if (ha->cmd_cnt > 0) {
if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
ha->ic_all_size) {
TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
return 0;
}
}
/* copy command */
gdth_copy_command(ha);
return cmd_index;
}
static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 b)
{
register gdth_cmd_str *cmdp;
u16 i;
dma_addr_t sense_paddr;
int cmd_index, sgcnt, mode64;
u8 t,l;
struct page *page;
unsigned long offset;
struct gdth_cmndinfo *cmndinfo;
t = scp->device->id;
l = scp->device->lun;
cmdp = ha->pccb;
TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
scp->cmnd[0],b,t,l));
if (ha->type==GDT_EISA && ha->cmd_cnt>0)
return 0;
mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
cmdp->Service = SCSIRAWSERVICE;
cmdp->RequestBuffer = scp;
/* search free command index */
if (!(cmd_index=gdth_get_cmd_index(ha))) {
TRACE(("GDT: No free command index found\n"));
return 0;
}
/* if it's the first command, set command semaphore */
if (ha->cmd_cnt == 0)
gdth_set_sema0(ha);
cmndinfo = gdth_cmnd_priv(scp);
/* fill command */
if (cmndinfo->OpCode != -1) {
cmdp->OpCode = cmndinfo->OpCode; /* special raw cmd. */
cmdp->BoardNode = LOCALBOARD;
if (mode64) {
cmdp->u.raw64.direction = (cmndinfo->phase >> 8);
TRACE2(("special raw cmd 0x%x param 0x%x\n",
cmdp->OpCode, cmdp->u.raw64.direction));
/* evaluate command size */
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
} else {
cmdp->u.raw.direction = (cmndinfo->phase >> 8);
TRACE2(("special raw cmd 0x%x param 0x%x\n",
cmdp->OpCode, cmdp->u.raw.direction));
/* evaluate command size */
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
}
} else {
page = virt_to_page(scp->sense_buffer);
offset = (unsigned long)scp->sense_buffer & ~PAGE_MASK;
sense_paddr = pci_map_page(ha->pdev,page,offset,
16,PCI_DMA_FROMDEVICE);
cmndinfo->sense_paddr = sense_paddr;
cmdp->OpCode = GDT_WRITE; /* always */
cmdp->BoardNode = LOCALBOARD;
if (mode64) {
cmdp->u.raw64.reserved = 0;
cmdp->u.raw64.mdisc_time = 0;
cmdp->u.raw64.mcon_time = 0;
cmdp->u.raw64.clen = scp->cmd_len;
cmdp->u.raw64.target = t;
cmdp->u.raw64.lun = l;
cmdp->u.raw64.bus = b;
cmdp->u.raw64.priority = 0;
cmdp->u.raw64.sdlen = scsi_bufflen(scp);
cmdp->u.raw64.sense_len = 16;
cmdp->u.raw64.sense_data = sense_paddr;
cmdp->u.raw64.direction =
gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
cmdp->u.raw64.sg_ranz = 0;
} else {
cmdp->u.raw.reserved = 0;
cmdp->u.raw.mdisc_time = 0;
cmdp->u.raw.mcon_time = 0;
cmdp->u.raw.clen = scp->cmd_len;
cmdp->u.raw.target = t;
cmdp->u.raw.lun = l;
cmdp->u.raw.bus = b;
cmdp->u.raw.priority = 0;
cmdp->u.raw.link_p = 0;
cmdp->u.raw.sdlen = scsi_bufflen(scp);
cmdp->u.raw.sense_len = 16;
cmdp->u.raw.sense_data = sense_paddr;
cmdp->u.raw.direction =
gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
cmdp->u.raw.sg_ranz = 0;
}
if (scsi_bufflen(scp)) {
cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (mode64) {
struct scatterlist *sl;
cmdp->u.raw64.sdata = (u64)-1;
cmdp->u.raw64.sg_ranz = sgcnt;
scsi_for_each_sg(scp, sl, sgcnt, i) {
cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
#ifdef GDTH_DMA_STATISTICS
if (cmdp->u.raw64.sg_lst[i].sg_ptr > (u64)0xffffffff)
ha->dma64_cnt++;
else
ha->dma32_cnt++;
#endif
cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
}
} else {
struct scatterlist *sl;
cmdp->u.raw.sdata = 0xffffffff;
cmdp->u.raw.sg_ranz = sgcnt;
scsi_for_each_sg(scp, sl, sgcnt, i) {
cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
#ifdef GDTH_DMA_STATISTICS
ha->dma32_cnt++;
#endif
cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
}
}
#ifdef GDTH_STATISTICS
if (max_sg < sgcnt) {
max_sg = sgcnt;
TRACE3(("GDT: max_sg = %d\n",sgcnt));
}
#endif
}
if (mode64) {
TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
cmdp->u.raw64.sg_lst[0].sg_ptr,
cmdp->u.raw64.sg_lst[0].sg_len));
/* evaluate command size */
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
(u16)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
} else {
TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
cmdp->u.raw.sg_lst[0].sg_ptr,
cmdp->u.raw.sg_lst[0].sg_len));
/* evaluate command size */
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
(u16)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
}
}
/* check space */
if (ha->cmd_len & 3)
ha->cmd_len += (4 - (ha->cmd_len & 3));
if (ha->cmd_cnt > 0) {
if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
ha->ic_all_size) {
TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
return 0;
}
}
/* copy command */
gdth_copy_command(ha);
return cmd_index;
}
static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
{
register gdth_cmd_str *cmdp;
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
int cmd_index;
cmdp= ha->pccb;
TRACE2(("gdth_special_cmd(): "));
if (ha->type==GDT_EISA && ha->cmd_cnt>0)
return 0;
*cmdp = *cmndinfo->internal_cmd_str;
cmdp->RequestBuffer = scp;
/* search free command index */
if (!(cmd_index=gdth_get_cmd_index(ha))) {
TRACE(("GDT: No free command index found\n"));
return 0;
}
/* if it's the first command, set command semaphore */
if (ha->cmd_cnt == 0)
gdth_set_sema0(ha);
/* evaluate command size, check space */
if (cmdp->OpCode == GDT_IOCTL) {
TRACE2(("IOCTL\n"));
ha->cmd_len =
GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(u64);
} else if (cmdp->Service == CACHESERVICE) {
TRACE2(("cache command %d\n",cmdp->OpCode));
if (ha->cache_feat & GDT_64BIT)
ha->cmd_len =
GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
else
ha->cmd_len =
GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
} else if (cmdp->Service == SCSIRAWSERVICE) {
TRACE2(("raw command %d\n",cmdp->OpCode));
if (ha->raw_feat & GDT_64BIT)
ha->cmd_len =
GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
else
ha->cmd_len =
GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
}
if (ha->cmd_len & 3)
ha->cmd_len += (4 - (ha->cmd_len & 3));
if (ha->cmd_cnt > 0) {
if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
ha->ic_all_size) {
TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
return 0;
}
}
/* copy command */
gdth_copy_command(ha);
return cmd_index;
}
/* Controller event handling functions */
static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, u16 source,
u16 idx, gdth_evt_data *evt)
{
gdth_evt_str *e;
/* no GDTH_LOCK_HA() ! */
TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
if (source == 0) /* no source -> no event */
return NULL;
if (ebuffer[elastidx].event_source == source &&
ebuffer[elastidx].event_idx == idx &&
((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
!memcmp((char *)&ebuffer[elastidx].event_data.eu,
(char *)&evt->eu, evt->size)) ||
(evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
!strcmp((char *)&ebuffer[elastidx].event_data.event_string,
(char *)&evt->event_string)))) {
e = &ebuffer[elastidx];
e->last_stamp = (u32)ktime_get_real_seconds();
++e->same_count;
} else {
if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */
++elastidx;
if (elastidx == MAX_EVENTS)
elastidx = 0;
if (elastidx == eoldidx) { /* reached mark ? */
++eoldidx;
if (eoldidx == MAX_EVENTS)
eoldidx = 0;
}
}
e = &ebuffer[elastidx];
e->event_source = source;
e->event_idx = idx;
e->first_stamp = e->last_stamp = (u32)ktime_get_real_seconds();
e->same_count = 1;
e->event_data = *evt;
e->application = 0;
}
return e;
}
static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
{
gdth_evt_str *e;
int eindex;
unsigned long flags;
TRACE2(("gdth_read_event() handle %d\n", handle));
spin_lock_irqsave(&ha->smp_lock, flags);
if (handle == -1)
eindex = eoldidx;
else
eindex = handle;
estr->event_source = 0;
if (eindex < 0 || eindex >= MAX_EVENTS) {
spin_unlock_irqrestore(&ha->smp_lock, flags);
return eindex;
}
e = &ebuffer[eindex];
if (e->event_source != 0) {
if (eindex != elastidx) {
if (++eindex == MAX_EVENTS)
eindex = 0;
} else {
eindex = -1;
}
memcpy(estr, e, sizeof(gdth_evt_str));
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
return eindex;
}
static void gdth_readapp_event(gdth_ha_str *ha,
u8 application, gdth_evt_str *estr)
{
gdth_evt_str *e;
int eindex;
unsigned long flags;
u8 found = FALSE;
TRACE2(("gdth_readapp_event() app. %d\n", application));
spin_lock_irqsave(&ha->smp_lock, flags);
eindex = eoldidx;
for (;;) {
e = &ebuffer[eindex];
if (e->event_source == 0)
break;
if ((e->application & application) == 0) {
e->application |= application;
found = TRUE;
break;
}
if (eindex == elastidx)
break;
if (++eindex == MAX_EVENTS)
eindex = 0;
}
if (found)
memcpy(estr, e, sizeof(gdth_evt_str));
else
estr->event_source = 0;
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
static void gdth_clear_events(void)
{
TRACE(("gdth_clear_events()"));
eoldidx = elastidx = 0;
ebuffer[0].event_source = 0;
}
/* SCSI interface functions */
static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
int gdth_from_wait, int* pIndex)
{
gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
gdt6_dpram_str __iomem *dp6_ptr;
gdt2_dpram_str __iomem *dp2_ptr;
Scsi_Cmnd *scp;
int rval, i;
u8 IStatus;
u16 Service;
unsigned long flags = 0;
#ifdef INT_COAL
int coalesced = FALSE;
int next = FALSE;
gdth_coal_status *pcs = NULL;
int act_int_coal = 0;
#endif
TRACE(("gdth_interrupt() IRQ %d\n", ha->irq));
/* if polling and not from gdth_wait() -> return */
if (gdth_polling) {
if (!gdth_from_wait) {
return IRQ_HANDLED;
}
}
if (!gdth_polling)
spin_lock_irqsave(&ha->smp_lock, flags);
/* search controller */
IStatus = gdth_get_status(ha);
if (IStatus == 0) {
/* spurious interrupt */
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
return IRQ_HANDLED;
}
#ifdef GDTH_STATISTICS
++act_ints;
#endif
#ifdef INT_COAL
/* See if the fw is returning coalesced status */
if (IStatus == COALINDEX) {
/* Coalesced status. Setup the initial status
buffer pointer and flags */
pcs = ha->coal_stat;
coalesced = TRUE;
next = TRUE;
}
do {
if (coalesced) {
/* For coalesced requests all status
information is found in the status buffer */
IStatus = (u8)(pcs->status & 0xff);
}
#endif
if (ha->type == GDT_EISA) {
if (IStatus & 0x80) { /* error flag */
IStatus &= ~0x80;
ha->status = inw(ha->bmic + MAILBOXREG+8);
TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
} else /* no error */
ha->status = S_OK;
ha->info = inl(ha->bmic + MAILBOXREG+12);
ha->service = inw(ha->bmic + MAILBOXREG+10);
ha->info2 = inl(ha->bmic + MAILBOXREG+4);
outb(0xff, ha->bmic + EDOORREG); /* acknowledge interrupt */
outb(0x00, ha->bmic + SEMA1REG); /* reset status semaphore */
} else if (ha->type == GDT_ISA) {
dp2_ptr = ha->brd;
if (IStatus & 0x80) { /* error flag */
IStatus &= ~0x80;
ha->status = readw(&dp2_ptr->u.ic.Status);
TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
} else /* no error */
ha->status = S_OK;
ha->info = readl(&dp2_ptr->u.ic.Info[0]);
ha->service = readw(&dp2_ptr->u.ic.Service);
ha->info2 = readl(&dp2_ptr->u.ic.Info[1]);
writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
writeb(0, &dp2_ptr->io.Sema1); /* reset status semaphore */
} else if (ha->type == GDT_PCI) {
dp6_ptr = ha->brd;
if (IStatus & 0x80) { /* error flag */
IStatus &= ~0x80;
ha->status = readw(&dp6_ptr->u.ic.Status);
TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
} else /* no error */
ha->status = S_OK;
ha->info = readl(&dp6_ptr->u.ic.Info[0]);
ha->service = readw(&dp6_ptr->u.ic.Service);
ha->info2 = readl(&dp6_ptr->u.ic.Info[1]);
writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
writeb(0, &dp6_ptr->io.Sema1); /* reset status semaphore */
} else if (ha->type == GDT_PCINEW) {
if (IStatus & 0x80) { /* error flag */
IStatus &= ~0x80;
ha->status = inw(PTR2USHORT(&ha->plx->status));
TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
} else
ha->status = S_OK;
ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
ha->service = inw(PTR2USHORT(&ha->plx->service));
ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
} else if (ha->type == GDT_PCIMPR) {
dp6m_ptr = ha->brd;
if (IStatus & 0x80) { /* error flag */
IStatus &= ~0x80;
#ifdef INT_COAL
if (coalesced)
ha->status = pcs->ext_status & 0xffff;
else
#endif
ha->status = readw(&dp6m_ptr->i960r.status);
TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
} else /* no error */
ha->status = S_OK;
#ifdef INT_COAL
/* get information */
if (coalesced) {
ha->info = pcs->info0;
ha->info2 = pcs->info1;
ha->service = (pcs->ext_status >> 16) & 0xffff;
} else
#endif
{
ha->info = readl(&dp6m_ptr->i960r.info[0]);
ha->service = readw(&dp6m_ptr->i960r.service);
ha->info2 = readl(&dp6m_ptr->i960r.info[1]);
}
/* event string */
if (IStatus == ASYNCINDEX) {
if (ha->service != SCREENSERVICE &&
(ha->fw_vers & 0xff) >= 0x1a) {
ha->dvr.severity = readb
(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
for (i = 0; i < 256; ++i) {
ha->dvr.event_string[i] = readb
(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
if (ha->dvr.event_string[i] == 0)
break;
}
}
}
#ifdef INT_COAL
/* Make sure that non coalesced interrupts get cleared
before being handled by gdth_async_event/gdth_sync_event */
if (!coalesced)
#endif
{
writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
writeb(0, &dp6m_ptr->i960r.sema1_reg);
}
} else {
TRACE2(("gdth_interrupt() unknown controller type\n"));
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
return IRQ_HANDLED;
}
TRACE(("gdth_interrupt() index %d stat %d info %d\n",
IStatus,ha->status,ha->info));
if (gdth_from_wait) {
*pIndex = (int)IStatus;
}
if (IStatus == ASYNCINDEX) {
TRACE2(("gdth_interrupt() async. event\n"));
gdth_async_event(ha);
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
gdth_next(ha);
return IRQ_HANDLED;
}
if (IStatus == SPEZINDEX) {
TRACE2(("Service unknown or not initialized !\n"));
ha->dvr.size = sizeof(ha->dvr.eu.driver);
ha->dvr.eu.driver.ionode = ha->hanum;
gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
return IRQ_HANDLED;
}
scp = ha->cmd_tab[IStatus-2].cmnd;
Service = ha->cmd_tab[IStatus-2].service;
ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
if (scp == UNUSED_CMND) {
TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
ha->dvr.size = sizeof(ha->dvr.eu.driver);
ha->dvr.eu.driver.ionode = ha->hanum;
ha->dvr.eu.driver.index = IStatus;
gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
return IRQ_HANDLED;
}
if (scp == INTERNAL_CMND) {
TRACE(("gdth_interrupt() answer to internal command\n"));
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
return IRQ_HANDLED;
}
TRACE(("gdth_interrupt() sync. status\n"));
rval = gdth_sync_event(ha,Service,IStatus,scp);
if (!gdth_polling)
spin_unlock_irqrestore(&ha->smp_lock, flags);
if (rval == 2) {
gdth_putq(ha, scp, gdth_cmnd_priv(scp)->priority);
} else if (rval == 1) {
gdth_scsi_done(scp);
}
#ifdef INT_COAL
if (coalesced) {
/* go to the next status in the status buffer */
++pcs;
#ifdef GDTH_STATISTICS
++act_int_coal;
if (act_int_coal > max_int_coal) {
max_int_coal = act_int_coal;
printk("GDT: max_int_coal = %d\n",(u16)max_int_coal);
}
#endif
/* see if there is another status */
if (pcs->status == 0)
/* Stop the coalesce loop */
next = FALSE;
}
} while (next);
/* coalescing only for new GDT_PCIMPR controllers available */
if (ha->type == GDT_PCIMPR && coalesced) {
writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
writeb(0, &dp6m_ptr->i960r.sema1_reg);
}
#endif
gdth_next(ha);
return IRQ_HANDLED;
}
static irqreturn_t gdth_interrupt(int irq, void *dev_id)
{
gdth_ha_str *ha = dev_id;
return __gdth_interrupt(ha, false, NULL);
}
static int gdth_sync_event(gdth_ha_str *ha, int service, u8 index,
Scsi_Cmnd *scp)
{
gdth_msg_str *msg;
gdth_cmd_str *cmdp;
u8 b, t;
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
cmdp = ha->pccb;
TRACE(("gdth_sync_event() serv %d status %d\n",
service,ha->status));
if (service == SCREENSERVICE) {
msg = ha->pmsg;
TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
if (msg->msg_len > MSGLEN+1)
msg->msg_len = MSGLEN+1;
if (msg->msg_len)
if (!(msg->msg_answer && msg->msg_ext)) {
msg->msg_text[msg->msg_len] = '\0';
printk("%s",msg->msg_text);
}
if (msg->msg_ext && !msg->msg_answer) {
while (gdth_test_busy(ha))
gdth_delay(0);
cmdp->Service = SCREENSERVICE;
cmdp->RequestBuffer = SCREEN_CMND;
gdth_get_cmd_index(ha);
gdth_set_sema0(ha);
cmdp->OpCode = GDT_READ;
cmdp->BoardNode = LOCALBOARD;
cmdp->u.screen.reserved = 0;
cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
ha->cmd_offs_dpmem = 0;
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
+ sizeof(u64);
ha->cmd_cnt = 0;
gdth_copy_command(ha);
gdth_release_event(ha);
return 0;
}
if (msg->msg_answer && msg->msg_alen) {
/* default answers (getchar() not possible) */
if (msg->msg_alen == 1) {
msg->msg_alen = 0;
msg->msg_len = 1;
msg->msg_text[0] = 0;
} else {
msg->msg_alen -= 2;
msg->msg_len = 2;
msg->msg_text[0] = 1;
msg->msg_text[1] = 0;
}
msg->msg_ext = 0;
msg->msg_answer = 0;
while (gdth_test_busy(ha))
gdth_delay(0);
cmdp->Service = SCREENSERVICE;
cmdp->RequestBuffer = SCREEN_CMND;
gdth_get_cmd_index(ha);
gdth_set_sema0(ha);
cmdp->OpCode = GDT_WRITE;
cmdp->BoardNode = LOCALBOARD;
cmdp->u.screen.reserved = 0;
cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
ha->cmd_offs_dpmem = 0;
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
+ sizeof(u64);
ha->cmd_cnt = 0;
gdth_copy_command(ha);
gdth_release_event(ha);
return 0;
}
printk("\n");
} else {
b = scp->device->channel;
t = scp->device->id;
if (cmndinfo->OpCode == -1 && b != ha->virt_bus) {
ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
}
/* cache or raw service */
if (ha->status == S_BSY) {
TRACE2(("Controller busy -> retry !\n"));
if (cmndinfo->OpCode == GDT_MOUNT)
cmndinfo->OpCode = GDT_CLUST_INFO;
/* retry */
return 2;
}
if (scsi_bufflen(scp))
pci_unmap_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (cmndinfo->sense_paddr)
pci_unmap_page(ha->pdev, cmndinfo->sense_paddr, 16,
PCI_DMA_FROMDEVICE);
if (ha->status == S_OK) {
cmndinfo->status = S_OK;
cmndinfo->info = ha->info;
if (cmndinfo->OpCode != -1) {
TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
cmndinfo->OpCode));
/* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
if (cmndinfo->OpCode == GDT_CLUST_INFO) {
ha->hdr[t].cluster_type = (u8)ha->info;
if (!(ha->hdr[t].cluster_type &
CLUSTER_MOUNTED)) {
/* NOT MOUNTED -> MOUNT */
cmndinfo->OpCode = GDT_MOUNT;
if (ha->hdr[t].cluster_type &
CLUSTER_RESERVED) {
/* cluster drive RESERVED (on the other node) */
cmndinfo->phase = -2; /* reservation conflict */
}
} else {
cmndinfo->OpCode = -1;
}
} else {
if (cmndinfo->OpCode == GDT_MOUNT) {
ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
ha->hdr[t].media_changed = TRUE;
} else if (cmndinfo->OpCode == GDT_UNMOUNT) {
ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
ha->hdr[t].media_changed = TRUE;
}
cmndinfo->OpCode = -1;
}
/* retry */
cmndinfo->priority = HIGH_PRI;
return 2;
} else {
/* RESERVE/RELEASE ? */
if (scp->cmnd[0] == RESERVE) {
ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
} else if (scp->cmnd[0] == RELEASE) {
ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
}
scp->result = DID_OK << 16;
scp->sense_buffer[0] = 0;
}
} else {
cmndinfo->status = ha->status;
cmndinfo->info = ha->info;
if (cmndinfo->OpCode != -1) {
TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
cmndinfo->OpCode, ha->status));
if (cmndinfo->OpCode == GDT_SCAN_START ||
cmndinfo->OpCode == GDT_SCAN_END) {
cmndinfo->OpCode = -1;
/* retry */
cmndinfo->priority = HIGH_PRI;
return 2;
}
memset((char*)scp->sense_buffer,0,16);
scp->sense_buffer[0] = 0x70;
scp->sense_buffer[2] = NOT_READY;
scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
} else if (service == CACHESERVICE) {
if (ha->status == S_CACHE_UNKNOWN &&
(ha->hdr[t].cluster_type &
CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
/* bus reset -> force GDT_CLUST_INFO */
ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
}
memset((char*)scp->sense_buffer,0,16);
if (ha->status == (u16)S_CACHE_RESERV) {
scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
} else {
scp->sense_buffer[0] = 0x70;
scp->sense_buffer[2] = NOT_READY;
scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
}
if (!cmndinfo->internal_command) {
ha->dvr.size = sizeof(ha->dvr.eu.sync);
ha->dvr.eu.sync.ionode = ha->hanum;
ha->dvr.eu.sync.service = service;
ha->dvr.eu.sync.status = ha->status;
ha->dvr.eu.sync.info = ha->info;
ha->dvr.eu.sync.hostdrive = t;
if (ha->status >= 0x8000)
gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
else
gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
}
} else {
/* sense buffer filled from controller firmware (DMA) */
if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
scp->result = DID_BAD_TARGET << 16;
} else {
scp->result = (DID_OK << 16) | ha->info;
}
}
}
if (!cmndinfo->wait_for_completion)
cmndinfo->wait_for_completion++;
else
return 1;
}
return 0;
}
static char *async_cache_tab[] = {
/* 0*/ "\011\000\002\002\002\004\002\006\004"
"GDT HA %u, service %u, async. status %u/%lu unknown",
/* 1*/ "\011\000\002\002\002\004\002\006\004"
"GDT HA %u, service %u, async. status %u/%lu unknown",
/* 2*/ "\005\000\002\006\004"
"GDT HA %u, Host Drive %lu not ready",
/* 3*/ "\005\000\002\006\004"
"GDT HA %u, Host Drive %lu: REASSIGN not successful and/or data error on reassigned blocks. Drive may crash in the future and should be replaced",
/* 4*/ "\005\000\002\006\004"
"GDT HA %u, mirror update on Host Drive %lu failed",
/* 5*/ "\005\000\002\006\004"
"GDT HA %u, Mirror Drive %lu failed",
/* 6*/ "\005\000\002\006\004"
"GDT HA %u, Mirror Drive %lu: REASSIGN not successful and/or data error on reassigned blocks. Drive may crash in the future and should be replaced",
/* 7*/ "\005\000\002\006\004"
"GDT HA %u, Host Drive %lu write protected",
/* 8*/ "\005\000\002\006\004"
"GDT HA %u, media changed in Host Drive %lu",
/* 9*/ "\005\000\002\006\004"
"GDT HA %u, Host Drive %lu is offline",
/*10*/ "\005\000\002\006\004"
"GDT HA %u, media change of Mirror Drive %lu",
/*11*/ "\005\000\002\006\004"
"GDT HA %u, Mirror Drive %lu is write protected",
/*12*/ "\005\000\002\006\004"
"GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
/*13*/ "\007\000\002\006\002\010\002"
"GDT HA %u, Array Drive %u: Cache Drive %u failed",
/*14*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: FAIL state entered",
/*15*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: error",
/*16*/ "\007\000\002\006\002\010\002"
"GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
/*17*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity build failed",
/*18*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: drive rebuild failed",
/*19*/ "\005\000\002\010\002"
"GDT HA %u, Test of Hot Fix %u failed",
/*20*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: drive build finished successfully",
/*21*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: drive rebuild finished successfully",
/*22*/ "\007\000\002\006\002\010\002"
"GDT HA %u, Array Drive %u: Hot Fix %u activated",
/*23*/ "\005\000\002\006\002"
"GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
/*24*/ "\005\000\002\010\002"
"GDT HA %u, mirror update on Cache Drive %u completed",
/*25*/ "\005\000\002\010\002"
"GDT HA %u, mirror update on Cache Drive %lu failed",
/*26*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: drive rebuild started",
/*27*/ "\005\000\002\012\001"
"GDT HA %u, Fault bus %u: SHELF OK detected",
/*28*/ "\005\000\002\012\001"
"GDT HA %u, Fault bus %u: SHELF not OK detected",
/*29*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
/*30*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: new disk detected",
/*31*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: old disk detected",
/*32*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
/*33*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: invalid device detected",
/*34*/ "\011\000\002\012\001\013\001\006\004"
"GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
/*35*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: disk write protected",
/*36*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: disk not available",
/*37*/ "\007\000\002\012\001\006\004"
"GDT HA %u, Fault bus %u: swap detected (%lu)",
/*38*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
/*39*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
/*40*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
/*41*/ "\007\000\002\012\001\013\001"
"GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
/*42*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: drive build started",
/*43*/ "\003\000\002"
"GDT HA %u, DRAM parity error detected",
/*44*/ "\005\000\002\006\002"
"GDT HA %u, Mirror Drive %u: update started",
/*45*/ "\007\000\002\006\002\010\002"
"GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
/*46*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
/*47*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
/*48*/ "\005\000\002\006\002"
"GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
/*49*/ "\005\000\002\006\002"
"GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
/*50*/ "\007\000\002\012\001\013\001"
"GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
/*51*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: expand started",
/*52*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: expand finished successfully",
/*53*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: expand failed",
/*54*/ "\003\000\002"
"GDT HA %u, CPU temperature critical",
/*55*/ "\003\000\002"
"GDT HA %u, CPU temperature OK",
/*56*/ "\005\000\002\006\004"
"GDT HA %u, Host drive %lu created",
/*57*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: expand restarted",
/*58*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: expand stopped",
/*59*/ "\005\000\002\010\002"
"GDT HA %u, Mirror Drive %u: drive build quited",
/*60*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity build quited",
/*61*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: drive rebuild quited",
/*62*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity verify started",
/*63*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity verify done",
/*64*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity verify failed",
/*65*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity error detected",
/*66*/ "\005\000\002\006\002"
"GDT HA %u, Array Drive %u: parity verify quited",
/*67*/ "\005\000\002\006\002"
"GDT HA %u, Host Drive %u reserved",
/*68*/ "\005\000\002\006\002"
"GDT HA %u, Host Drive %u mounted and released",
/*69*/ "\005\000\002\006\002"
"GDT HA %u, Host Drive %u released",
/*70*/ "\003\000\002"
"GDT HA %u, DRAM error detected and corrected with ECC",
/*71*/ "\003\000\002"
"GDT HA %u, Uncorrectable DRAM error detected with ECC",
/*72*/ "\011\000\002\012\001\013\001\014\001"
"GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
/*73*/ "\005\000\002\006\002"
"GDT HA %u, Host drive %u resetted locally",
/*74*/ "\005\000\002\006\002"
"GDT HA %u, Host drive %u resetted remotely",
/*75*/ "\003\000\002"
"GDT HA %u, async. status 75 unknown",
};
static int gdth_async_event(gdth_ha_str *ha)
{
gdth_cmd_str *cmdp;
int cmd_index;
cmdp= ha->pccb;
TRACE2(("gdth_async_event() ha %d serv %d\n",
ha->hanum, ha->service));
if (ha->service == SCREENSERVICE) {
if (ha->status == MSG_REQUEST) {
while (gdth_test_busy(ha))
gdth_delay(0);
cmdp->Service = SCREENSERVICE;
cmdp->RequestBuffer = SCREEN_CMND;
cmd_index = gdth_get_cmd_index(ha);
gdth_set_sema0(ha);
cmdp->OpCode = GDT_READ;
cmdp->BoardNode = LOCALBOARD;
cmdp->u.screen.reserved = 0;
cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
ha->cmd_offs_dpmem = 0;
ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
+ sizeof(u64);
ha->cmd_cnt = 0;
gdth_copy_command(ha);
if (ha->type == GDT_EISA)
printk("[EISA slot %d] ",(u16)ha->brd_phys);
else if (ha->type == GDT_ISA)
printk("[DPMEM 0x%4X] ",(u16)ha->brd_phys);
else
printk("[PCI %d/%d] ",(u16)(ha->brd_phys>>8),
(u16)((ha->brd_phys>>3)&0x1f));
gdth_release_event(ha);
}
} else {
if (ha->type == GDT_PCIMPR &&
(ha->fw_vers & 0xff) >= 0x1a) {
ha->dvr.size = 0;
ha->dvr.eu.async.ionode = ha->hanum;
ha->dvr.eu.async.status = ha->status;
/* severity and event_string already set! */
} else {
ha->dvr.size = sizeof(ha->dvr.eu.async);
ha->dvr.eu.async.ionode = ha->hanum;
ha->dvr.eu.async.service = ha->service;
ha->dvr.eu.async.status = ha->status;
ha->dvr.eu.async.info = ha->info;
*(u32 *)ha->dvr.eu.async.scsi_coord = ha->info2;
}
gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
gdth_log_event( &ha->dvr, NULL );
/* new host drive from expand? */
if (ha->service == CACHESERVICE && ha->status == 56) {
TRACE2(("gdth_async_event(): new host drive %d created\n",
(u16)ha->info));
/* gdth_analyse_hdrive(hanum, (u16)ha->info); */
}
}
return 1;
}
static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
{
gdth_stackframe stack;
char *f = NULL;
int i,j;
TRACE2(("gdth_log_event()\n"));
if (dvr->size == 0) {
if (buffer == NULL) {
printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
} else {
sprintf(buffer,"Adapter %d: %s\n",
dvr->eu.async.ionode,dvr->event_string);
}
} else if (dvr->eu.async.service == CACHESERVICE &&
INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
TRACE2(("GDT: Async. event cache service, event no.: %d\n",
dvr->eu.async.status));
f = async_cache_tab[dvr->eu.async.status];
/* i: parameter to push, j: stack element to fill */
for (j=0,i=1; i < f[0]; i+=2) {
switch (f[i+1]) {
case 4:
stack.b[j++] = *(u32*)&dvr->eu.stream[(int)f[i]];
break;
case 2:
stack.b[j++] = *(u16*)&dvr->eu.stream[(int)f[i]];
break;
case 1:
stack.b[j++] = *(u8*)&dvr->eu.stream[(int)f[i]];
break;
default:
break;
}
}
if (buffer == NULL) {
printk(&f[(int)f[0]],stack);
printk("\n");
} else {
sprintf(buffer,&f[(int)f[0]],stack);
}
} else {
if (buffer == NULL) {
printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
} else {
sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
}
}
}
#ifdef GDTH_STATISTICS
static u8 gdth_timer_running;
static void gdth_timeout(unsigned long data)
{
u32 i;
Scsi_Cmnd *nscp;
gdth_ha_str *ha;
unsigned long flags;
if(unlikely(list_empty(&gdth_instances))) {
gdth_timer_running = 0;
return;
}
ha = list_first_entry(&gdth_instances, gdth_ha_str, list);
spin_lock_irqsave(&ha->smp_lock, flags);
for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
++act_stats;
for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
++act_rq;
TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
act_ints, act_ios, act_stats, act_rq));
act_ints = act_ios = 0;
gdth_timer.expires = jiffies + 30 * HZ;
add_timer(&gdth_timer);
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
static void gdth_timer_init(void)
{
if (gdth_timer_running)
return;
gdth_timer_running = 1;
TRACE2(("gdth_detect(): Initializing timer !\n"));
gdth_timer.expires = jiffies + HZ;
gdth_timer.data = 0L;
gdth_timer.function = gdth_timeout;
add_timer(&gdth_timer);
}
#else
static inline void gdth_timer_init(void)
{
}
#endif
static void __init internal_setup(char *str,int *ints)
{
int i, argc;
char *cur_str, *argv;
TRACE2(("internal_setup() str %s ints[0] %d\n",
str ? str:"NULL", ints ? ints[0]:0));
/* read irq[] from ints[] */
if (ints) {
argc = ints[0];
if (argc > 0) {
if (argc > MAXHA)
argc = MAXHA;
for (i = 0; i < argc; ++i)
irq[i] = ints[i+1];
}
}
/* analyse string */
argv = str;
while (argv && (cur_str = strchr(argv, ':'))) {
int val = 0, c = *++cur_str;
if (c == 'n' || c == 'N')
val = 0;
else if (c == 'y' || c == 'Y')
val = 1;
else
val = (int)simple_strtoul(cur_str, NULL, 0);
if (!strncmp(argv, "disable:", 8))
disable = val;
else if (!strncmp(argv, "reserve_mode:", 13))
reserve_mode = val;
else if (!strncmp(argv, "reverse_scan:", 13))
reverse_scan = val;
else if (!strncmp(argv, "hdr_channel:", 12))
hdr_channel = val;
else if (!strncmp(argv, "max_ids:", 8))
max_ids = val;
else if (!strncmp(argv, "rescan:", 7))
rescan = val;
else if (!strncmp(argv, "shared_access:", 14))
shared_access = val;
else if (!strncmp(argv, "probe_eisa_isa:", 15))
probe_eisa_isa = val;
else if (!strncmp(argv, "reserve_list:", 13)) {
reserve_list[0] = val;
for (i = 1; i < MAX_RES_ARGS; i++) {
cur_str = strchr(cur_str, ',');
if (!cur_str)
break;
if (!isdigit((int)*++cur_str)) {
--cur_str;
break;
}
reserve_list[i] =
(int)simple_strtoul(cur_str, NULL, 0);
}
if (!cur_str)
break;
argv = ++cur_str;
continue;
}
if ((argv = strchr(argv, ',')))
++argv;
}
}
int __init option_setup(char *str)
{
int ints[MAXHA];
char *cur = str;
int i = 1;
TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
while (cur && isdigit(*cur) && i < MAXHA) {
ints[i++] = simple_strtoul(cur, NULL, 0);
if ((cur = strchr(cur, ',')) != NULL) cur++;
}
ints[0] = i - 1;
internal_setup(cur, ints);
return 1;
}
static const char *gdth_ctr_name(gdth_ha_str *ha)
{
TRACE2(("gdth_ctr_name()\n"));
if (ha->type == GDT_EISA) {
switch (ha->stype) {
case GDT3_ID:
return("GDT3000/3020");
case GDT3A_ID:
return("GDT3000A/3020A/3050A");
case GDT3B_ID:
return("GDT3000B/3010A");
}
} else if (ha->type == GDT_ISA) {
return("GDT2000/2020");
} else if (ha->type == GDT_PCI) {
switch (ha->pdev->device) {
case PCI_DEVICE_ID_VORTEX_GDT60x0:
return("GDT6000/6020/6050");
case PCI_DEVICE_ID_VORTEX_GDT6000B:
return("GDT6000B/6010");
}
}
/* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
return("");
}
static const char *gdth_info(struct Scsi_Host *shp)
{
gdth_ha_str *ha = shost_priv(shp);
TRACE2(("gdth_info()\n"));
return ((const char *)ha->binfo.type_string);
}
static enum blk_eh_timer_return gdth_timed_out(struct scsi_cmnd *scp)
{
gdth_ha_str *ha = shost_priv(scp->device->host);
struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
u8 b, t;
unsigned long flags;
enum blk_eh_timer_return retval = BLK_EH_NOT_HANDLED;
TRACE(("%s() cmd 0x%x\n", scp->cmnd[0], __func__));
b = scp->device->channel;
t = scp->device->id;
/*
* We don't really honor the command timeout, but we try to
* honor 6 times of the actual command timeout! So reset the
* timer if this is less than 6th timeout on this command!
*/
if (++cmndinfo->timeout_count < 6)
retval = BLK_EH_RESET_TIMER;
/* Reset the timeout if it is locked IO */
spin_lock_irqsave(&ha->smp_lock, flags);
if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha, b)].lock) ||
(b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock)) {
TRACE2(("%s(): locked IO, reset timeout\n", __func__));
retval = BLK_EH_RESET_TIMER;
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
return retval;
}
static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
{
gdth_ha_str *ha = shost_priv(scp->device->host);
int i;
unsigned long flags;
Scsi_Cmnd *cmnd;
u8 b;
TRACE2(("gdth_eh_bus_reset()\n"));
b = scp->device->channel;
/* clear command tab */
spin_lock_irqsave(&ha->smp_lock, flags);
for (i = 0; i < GDTH_MAXCMDS; ++i) {
cmnd = ha->cmd_tab[i].cmnd;
if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
ha->cmd_tab[i].cmnd = UNUSED_CMND;
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
if (b == ha->virt_bus) {
/* host drives */
for (i = 0; i < MAX_HDRIVES; ++i) {
if (ha->hdr[i].present) {
spin_lock_irqsave(&ha->smp_lock, flags);
gdth_polling = TRUE;
while (gdth_test_busy(ha))
gdth_delay(0);
if (gdth_internal_cmd(ha, CACHESERVICE,
GDT_CLUST_RESET, i, 0, 0))
ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
gdth_polling = FALSE;
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
}
} else {
/* raw devices */
spin_lock_irqsave(&ha->smp_lock, flags);
for (i = 0; i < MAXID; ++i)
ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
gdth_polling = TRUE;
while (gdth_test_busy(ha))
gdth_delay(0);
gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESET_BUS,
BUS_L2P(ha,b), 0, 0);
gdth_polling = FALSE;
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
return SUCCESS;
}
static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
{
u8 b, t;
gdth_ha_str *ha = shost_priv(sdev->host);
struct scsi_device *sd;
unsigned capacity;
sd = sdev;
capacity = cap;
b = sd->channel;
t = sd->id;
TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", ha->hanum, b, t));
if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
/* raw device or host drive without mapping information */
TRACE2(("Evaluate mapping\n"));
gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
} else {
ip[0] = ha->hdr[t].heads;
ip[1] = ha->hdr[t].secs;
ip[2] = capacity / ip[0] / ip[1];
}
TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
ip[0],ip[1],ip[2]));
return 0;
}
static int gdth_queuecommand_lck(struct scsi_cmnd *scp,
void (*done)(struct scsi_cmnd *))
{
gdth_ha_str *ha = shost_priv(scp->device->host);
struct gdth_cmndinfo *cmndinfo;
TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
cmndinfo = gdth_get_cmndinfo(ha);
BUG_ON(!cmndinfo);
scp->scsi_done = done;
cmndinfo->timeout_count = 0;
cmndinfo->priority = DEFAULT_PRI;
return __gdth_queuecommand(ha, scp, cmndinfo);
}
static DEF_SCSI_QCMD(gdth_queuecommand)
static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
struct gdth_cmndinfo *cmndinfo)
{
scp->host_scribble = (unsigned char *)cmndinfo;
cmndinfo->wait_for_completion = 1;
cmndinfo->phase = -1;
cmndinfo->OpCode = -1;
#ifdef GDTH_STATISTICS
++act_ios;
#endif
gdth_putq(ha, scp, cmndinfo->priority);
gdth_next(ha);
return 0;
}
static int gdth_open(struct inode *inode, struct file *filep)
{
gdth_ha_str *ha;
mutex_lock(&gdth_mutex);
list_for_each_entry(ha, &gdth_instances, list) {
if (!ha->sdev)
ha->sdev = scsi_get_host_dev(ha->shost);
}
mutex_unlock(&gdth_mutex);
TRACE(("gdth_open()\n"));
return 0;
}
static int gdth_close(struct inode *inode, struct file *filep)
{
TRACE(("gdth_close()\n"));
return 0;
}
static int ioc_event(void __user *arg)
{
gdth_ioctl_event evt;
gdth_ha_str *ha;
unsigned long flags;
if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)))
return -EFAULT;
ha = gdth_find_ha(evt.ionode);
if (!ha)
return -EFAULT;
if (evt.erase == 0xff) {
if (evt.event.event_source == ES_TEST)
evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
else if (evt.event.event_source == ES_DRIVER)
evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
else if (evt.event.event_source == ES_SYNC)
evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
else
evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
spin_lock_irqsave(&ha->smp_lock, flags);
gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
&evt.event.event_data);
spin_unlock_irqrestore(&ha->smp_lock, flags);
} else if (evt.erase == 0xfe) {
gdth_clear_events();
} else if (evt.erase == 0) {
evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
} else {
gdth_readapp_event(ha, evt.erase, &evt.event);
}
if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
return -EFAULT;
return 0;
}
static int ioc_lockdrv(void __user *arg)
{
gdth_ioctl_lockdrv ldrv;
u8 i, j;
unsigned long flags;
gdth_ha_str *ha;
if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)))
return -EFAULT;
ha = gdth_find_ha(ldrv.ionode);
if (!ha)
return -EFAULT;
for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
j = ldrv.drives[i];
if (j >= MAX_HDRIVES || !ha->hdr[j].present)
continue;
if (ldrv.lock) {
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[j].lock = 1;
spin_unlock_irqrestore(&ha->smp_lock, flags);
gdth_wait_completion(ha, ha->bus_cnt, j);
} else {
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[j].lock = 0;
spin_unlock_irqrestore(&ha->smp_lock, flags);
gdth_next(ha);
}
}
return 0;
}
static int ioc_resetdrv(void __user *arg, char *cmnd)
{
gdth_ioctl_reset res;
gdth_cmd_str cmd;
gdth_ha_str *ha;
int rval;
if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
res.number >= MAX_HDRIVES)
return -EFAULT;
ha = gdth_find_ha(res.ionode);
if (!ha)
return -EFAULT;
if (!ha->hdr[res.number].present)
return 0;
memset(&cmd, 0, sizeof(gdth_cmd_str));
cmd.Service = CACHESERVICE;
cmd.OpCode = GDT_CLUST_RESET;
if (ha->cache_feat & GDT_64BIT)
cmd.u.cache64.DeviceNo = res.number;
else
cmd.u.cache.DeviceNo = res.number;
rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
if (rval < 0)
return rval;
res.status = rval;
if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
return -EFAULT;
return 0;
}
static int ioc_general(void __user *arg, char *cmnd)
{
gdth_ioctl_general gen;
char *buf = NULL;
u64 paddr;
gdth_ha_str *ha;
int rval;
if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)))
return -EFAULT;
ha = gdth_find_ha(gen.ionode);
if (!ha)
return -EFAULT;
if (gen.data_len > INT_MAX)
return -EINVAL;
if (gen.sense_len > INT_MAX)
return -EINVAL;
if (gen.data_len + gen.sense_len > INT_MAX)
return -EINVAL;
if (gen.data_len + gen.sense_len != 0) {
if (!(buf = gdth_ioctl_alloc(ha, gen.data_len + gen.sense_len,
FALSE, &paddr)))
return -EFAULT;
if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
gen.data_len + gen.sense_len)) {
gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
return -EFAULT;
}
if (gen.command.OpCode == GDT_IOCTL) {
gen.command.u.ioctl.p_param = paddr;
} else if (gen.command.Service == CACHESERVICE) {
if (ha->cache_feat & GDT_64BIT) {
/* copy elements from 32-bit IOCTL structure */
gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
/* addresses */
if (ha->cache_feat & SCATTER_GATHER) {
gen.command.u.cache64.DestAddr = (u64)-1;
gen.command.u.cache64.sg_canz = 1;
gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
gen.command.u.cache64.sg_lst[1].sg_len = 0;
} else {
gen.command.u.cache64.DestAddr = paddr;
gen.command.u.cache64.sg_canz = 0;
}
} else {
if (ha->cache_feat & SCATTER_GATHER) {
gen.command.u.cache.DestAddr = 0xffffffff;
gen.command.u.cache.sg_canz = 1;
gen.command.u.cache.sg_lst[0].sg_ptr = (u32)paddr;
gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
gen.command.u.cache.sg_lst[1].sg_len = 0;
} else {
gen.command.u.cache.DestAddr = paddr;
gen.command.u.cache.sg_canz = 0;
}
}
} else if (gen.command.Service == SCSIRAWSERVICE) {
if (ha->raw_feat & GDT_64BIT) {
/* copy elements from 32-bit IOCTL structure */
char cmd[16];
gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
gen.command.u.raw64.bus = gen.command.u.raw.bus;
gen.command.u.raw64.lun = gen.command.u.raw.lun;
gen.command.u.raw64.target = gen.command.u.raw.target;
memcpy(cmd, gen.command.u.raw.cmd, 16);
memcpy(gen.command.u.raw64.cmd, cmd, 16);
gen.command.u.raw64.clen = gen.command.u.raw.clen;
gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
gen.command.u.raw64.direction = gen.command.u.raw.direction;
/* addresses */
if (ha->raw_feat & SCATTER_GATHER) {
gen.command.u.raw64.sdata = (u64)-1;
gen.command.u.raw64.sg_ranz = 1;
gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
gen.command.u.raw64.sg_lst[1].sg_len = 0;
} else {
gen.command.u.raw64.sdata = paddr;
gen.command.u.raw64.sg_ranz = 0;
}
gen.command.u.raw64.sense_data = paddr + gen.data_len;
} else {
if (ha->raw_feat & SCATTER_GATHER) {
gen.command.u.raw.sdata = 0xffffffff;
gen.command.u.raw.sg_ranz = 1;
gen.command.u.raw.sg_lst[0].sg_ptr = (u32)paddr;
gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
gen.command.u.raw.sg_lst[1].sg_len = 0;
} else {
gen.command.u.raw.sdata = paddr;
gen.command.u.raw.sg_ranz = 0;
}
gen.command.u.raw.sense_data = (u32)paddr + gen.data_len;
}
} else {
gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
return -EFAULT;
}
}
rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
if (rval < 0) {
gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
return rval;
}
gen.status = rval;
if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
gen.data_len + gen.sense_len)) {
gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
return -EFAULT;
}
if (copy_to_user(arg, &gen,
sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
return -EFAULT;
}
gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
return 0;
}
static int ioc_hdrlist(void __user *arg, char *cmnd)
{
gdth_ioctl_rescan *rsc;
gdth_cmd_str *cmd;
gdth_ha_str *ha;
u8 i;
int rc = -ENOMEM;
u32 cluster_type = 0;
rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
if (!rsc || !cmd)
goto free_fail;
if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
(NULL == (ha = gdth_find_ha(rsc->ionode)))) {
rc = -EFAULT;
goto free_fail;
}
memset(cmd, 0, sizeof(gdth_cmd_str));
for (i = 0; i < MAX_HDRIVES; ++i) {
if (!ha->hdr[i].present) {
rsc->hdr_list[i].bus = 0xff;
continue;
}
rsc->hdr_list[i].bus = ha->virt_bus;
rsc->hdr_list[i].target = i;
rsc->hdr_list[i].lun = 0;
rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
cmd->Service = CACHESERVICE;
cmd->OpCode = GDT_CLUST_INFO;
if (ha->cache_feat & GDT_64BIT)
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
rsc->hdr_list[i].cluster_type = cluster_type;
}
}
if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
rc = -EFAULT;
else
rc = 0;
free_fail:
kfree(rsc);
kfree(cmd);
return rc;
}
static int ioc_rescan(void __user *arg, char *cmnd)
{
gdth_ioctl_rescan *rsc;
gdth_cmd_str *cmd;
u16 i, status, hdr_cnt;
u32 info;
int cyls, hds, secs;
int rc = -ENOMEM;
unsigned long flags;
gdth_ha_str *ha;
rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd || !rsc)
goto free_fail;
if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
(NULL == (ha = gdth_find_ha(rsc->ionode)))) {
rc = -EFAULT;
goto free_fail;
}
memset(cmd, 0, sizeof(gdth_cmd_str));
if (rsc->flag == 0) {
/* old method: re-init. cache service */
cmd->Service = CACHESERVICE;
if (ha->cache_feat & GDT_64BIT) {
cmd->OpCode = GDT_X_INIT_HOST;
cmd->u.cache64.DeviceNo = LINUX_OS;
} else {
cmd->OpCode = GDT_INIT;
cmd->u.cache.DeviceNo = LINUX_OS;
}
status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
i = 0;
hdr_cnt = (status == S_OK ? (u16)info : 0);
} else {
i = rsc->hdr_no;
hdr_cnt = i + 1;
}
for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
cmd->Service = CACHESERVICE;
cmd->OpCode = GDT_INFO;
if (ha->cache_feat & GDT_64BIT)
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
spin_lock_irqsave(&ha->smp_lock, flags);
rsc->hdr_list[i].bus = ha->virt_bus;
rsc->hdr_list[i].target = i;
rsc->hdr_list[i].lun = 0;
if (status != S_OK) {
ha->hdr[i].present = FALSE;
} else {
ha->hdr[i].present = TRUE;
ha->hdr[i].size = info;
/* evaluate mapping */
ha->hdr[i].size &= ~SECS32;
gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
ha->hdr[i].heads = hds;
ha->hdr[i].secs = secs;
/* round size */
ha->hdr[i].size = cyls * hds * secs;
}
spin_unlock_irqrestore(&ha->smp_lock, flags);
if (status != S_OK)
continue;
/* extended info, if GDT_64BIT, for drives > 2 TB */
/* but we need ha->info2, not yet stored in scp->SCp */
/* devtype, cluster info, R/W attribs */
cmd->Service = CACHESERVICE;
cmd->OpCode = GDT_DEVTYPE;
if (ha->cache_feat & GDT_64BIT)
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[i].devtype = (status == S_OK ? (u16)info : 0);
spin_unlock_irqrestore(&ha->smp_lock, flags);
cmd->Service = CACHESERVICE;
cmd->OpCode = GDT_CLUST_INFO;
if (ha->cache_feat & GDT_64BIT)
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[i].cluster_type =
((status == S_OK && !shared_access) ? (u16)info : 0);
spin_unlock_irqrestore(&ha->smp_lock, flags);
rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
cmd->Service = CACHESERVICE;
cmd->OpCode = GDT_RW_ATTRIBS;
if (ha->cache_feat & GDT_64BIT)
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[i].rw_attribs = (status == S_OK ? (u16)info : 0);
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
rc = -EFAULT;
else
rc = 0;
free_fail:
kfree(rsc);
kfree(cmd);
return rc;
}
static int gdth_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
{
gdth_ha_str *ha;
Scsi_Cmnd *scp;
unsigned long flags;
char cmnd[MAX_COMMAND_SIZE];
void __user *argp = (void __user *)arg;
memset(cmnd, 0xff, 12);
TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
switch (cmd) {
case GDTIOCTL_CTRCNT:
{
int cnt = gdth_ctr_count;
if (put_user(cnt, (int __user *)argp))
return -EFAULT;
break;
}
case GDTIOCTL_DRVERS:
{
int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
if (put_user(ver, (int __user *)argp))
return -EFAULT;
break;
}
case GDTIOCTL_OSVERS:
{
gdth_ioctl_osvers osv;
osv.version = (u8)(LINUX_VERSION_CODE >> 16);
osv.subversion = (u8)(LINUX_VERSION_CODE >> 8);
osv.revision = (u16)(LINUX_VERSION_CODE & 0xff);
if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
return -EFAULT;
break;
}
case GDTIOCTL_CTRTYPE:
{
gdth_ioctl_ctrtype ctrt;
if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
(NULL == (ha = gdth_find_ha(ctrt.ionode))))
return -EFAULT;
if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
ctrt.type = (u8)((ha->stype>>20) - 0x10);
} else {
if (ha->type != GDT_PCIMPR) {
ctrt.type = (u8)((ha->stype<<4) + 6);
} else {
ctrt.type =
(ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
if (ha->stype >= 0x300)
ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
else
ctrt.ext_type = 0x6000 | ha->stype;
}
ctrt.device_id = ha->pdev->device;
ctrt.sub_device_id = ha->pdev->subsystem_device;
}
ctrt.info = ha->brd_phys;
ctrt.oem_id = ha->oem_id;
if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
return -EFAULT;
break;
}
case GDTIOCTL_GENERAL:
return ioc_general(argp, cmnd);
case GDTIOCTL_EVENT:
return ioc_event(argp);
case GDTIOCTL_LOCKDRV:
return ioc_lockdrv(argp);
case GDTIOCTL_LOCKCHN:
{
gdth_ioctl_lockchn lchn;
u8 i, j;
if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
(NULL == (ha = gdth_find_ha(lchn.ionode))))
return -EFAULT;
i = lchn.channel;
if (i < ha->bus_cnt) {
if (lchn.lock) {
spin_lock_irqsave(&ha->smp_lock, flags);
ha->raw[i].lock = 1;
spin_unlock_irqrestore(&ha->smp_lock, flags);
for (j = 0; j < ha->tid_cnt; ++j)
gdth_wait_completion(ha, i, j);
} else {
spin_lock_irqsave(&ha->smp_lock, flags);
ha->raw[i].lock = 0;
spin_unlock_irqrestore(&ha->smp_lock, flags);
for (j = 0; j < ha->tid_cnt; ++j)
gdth_next(ha);
}
}
break;
}
case GDTIOCTL_RESCAN:
return ioc_rescan(argp, cmnd);
case GDTIOCTL_HDRLIST:
return ioc_hdrlist(argp, cmnd);
case GDTIOCTL_RESET_BUS:
{
gdth_ioctl_reset res;
int rval;
if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
(NULL == (ha = gdth_find_ha(res.ionode))))
return -EFAULT;
scp = kzalloc(sizeof(*scp), GFP_KERNEL);
if (!scp)
return -ENOMEM;
scp->device = ha->sdev;
scp->cmd_len = 12;
scp->device->channel = res.number;
rval = gdth_eh_bus_reset(scp);
res.status = (rval == SUCCESS ? S_OK : S_GENERR);
kfree(scp);
if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
return -EFAULT;
break;
}
case GDTIOCTL_RESET_DRV:
return ioc_resetdrv(argp, cmnd);
default:
break;
}
return 0;
}
static long gdth_unlocked_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
int ret;
mutex_lock(&gdth_mutex);
ret = gdth_ioctl(file, cmd, arg);
mutex_unlock(&gdth_mutex);
return ret;
}
/* flush routine */
static void gdth_flush(gdth_ha_str *ha)
{
int i;
gdth_cmd_str gdtcmd;
char cmnd[MAX_COMMAND_SIZE];
memset(cmnd, 0xff, MAX_COMMAND_SIZE);
TRACE2(("gdth_flush() hanum %d\n", ha->hanum));
for (i = 0; i < MAX_HDRIVES; ++i) {
if (ha->hdr[i].present) {
gdtcmd.BoardNode = LOCALBOARD;
gdtcmd.Service = CACHESERVICE;
gdtcmd.OpCode = GDT_FLUSH;
if (ha->cache_feat & GDT_64BIT) {
gdtcmd.u.cache64.DeviceNo = i;
gdtcmd.u.cache64.BlockNo = 1;
gdtcmd.u.cache64.sg_canz = 0;
} else {
gdtcmd.u.cache.DeviceNo = i;
gdtcmd.u.cache.BlockNo = 1;
gdtcmd.u.cache.sg_canz = 0;
}
TRACE2(("gdth_flush(): flush ha %d drive %d\n", ha->hanum, i));
gdth_execute(ha->shost, &gdtcmd, cmnd, 30, NULL);
}
}
}
/* configure lun */
static int gdth_slave_configure(struct scsi_device *sdev)
{
sdev->skip_ms_page_3f = 1;
sdev->skip_ms_page_8 = 1;
return 0;
}
static struct scsi_host_template gdth_template = {
.name = "GDT SCSI Disk Array Controller",
.info = gdth_info,
.queuecommand = gdth_queuecommand,
.eh_bus_reset_handler = gdth_eh_bus_reset,
.slave_configure = gdth_slave_configure,
.bios_param = gdth_bios_param,
.show_info = gdth_show_info,
.write_info = gdth_set_info,
.eh_timed_out = gdth_timed_out,
.proc_name = "gdth",
.can_queue = GDTH_MAXCMDS,
.this_id = -1,
.sg_tablesize = GDTH_MAXSG,
.cmd_per_lun = GDTH_MAXC_P_L,
.unchecked_isa_dma = 1,
.use_clustering = ENABLE_CLUSTERING,
.no_write_same = 1,
};
#ifdef CONFIG_ISA
static int __init gdth_isa_probe_one(u32 isa_bios)
{
struct Scsi_Host *shp;
gdth_ha_str *ha;
dma_addr_t scratch_dma_handle = 0;
int error, i;
if (!gdth_search_isa(isa_bios))
return -ENXIO;
shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
if (!shp)
return -ENOMEM;
ha = shost_priv(shp);
error = -ENODEV;
if (!gdth_init_isa(isa_bios,ha))
goto out_host_put;
/* controller found and initialized */
printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
isa_bios, ha->irq, ha->drq);
error = request_irq(ha->irq, gdth_interrupt, 0, "gdth", ha);
if (error) {
printk("GDT-ISA: Unable to allocate IRQ\n");
goto out_host_put;
}
error = request_dma(ha->drq, "gdth");
if (error) {
printk("GDT-ISA: Unable to allocate DMA channel\n");
goto out_free_irq;
}
set_dma_mode(ha->drq,DMA_MODE_CASCADE);
enable_dma(ha->drq);
shp->unchecked_isa_dma = 1;
shp->irq = ha->irq;
shp->dma_channel = ha->drq;
ha->hanum = gdth_ctr_count++;
ha->shost = shp;
ha->pccb = &ha->cmdext;
ha->ccb_phys = 0L;
ha->pdev = NULL;
error = -ENOMEM;
ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
&scratch_dma_handle);
if (!ha->pscratch)
goto out_dec_counters;
ha->scratch_phys = scratch_dma_handle;
ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
&scratch_dma_handle);
if (!ha->pmsg)
goto out_free_pscratch;
ha->msg_phys = scratch_dma_handle;
#ifdef INT_COAL
ha->coal_stat = pci_alloc_consistent(ha->pdev,
sizeof(gdth_coal_status) * MAXOFFSETS,
&scratch_dma_handle);
if (!ha->coal_stat)
goto out_free_pmsg;
ha->coal_stat_phys = scratch_dma_handle;
#endif
ha->scratch_busy = FALSE;
ha->req_first = NULL;
ha->tid_cnt = MAX_HDRIVES;
if (max_ids > 0 && max_ids < ha->tid_cnt)
ha->tid_cnt = max_ids;
for (i = 0; i < GDTH_MAXCMDS; ++i)
ha->cmd_tab[i].cmnd = UNUSED_CMND;
ha->scan_mode = rescan ? 0x10 : 0;
error = -ENODEV;
if (!gdth_search_drives(ha)) {
printk("GDT-ISA: Error during device scan\n");
goto out_free_coal_stat;
}
if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
hdr_channel = ha->bus_cnt;
ha->virt_bus = hdr_channel;
if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
shp->max_cmd_len = 16;
shp->max_id = ha->tid_cnt;
shp->max_lun = MAXLUN;
shp->max_channel = ha->bus_cnt;
spin_lock_init(&ha->smp_lock);
gdth_enable_int(ha);
error = scsi_add_host(shp, NULL);
if (error)
goto out_free_coal_stat;
list_add_tail(&ha->list, &gdth_instances);
gdth_timer_init();
scsi_scan_host(shp);
return 0;
out_free_coal_stat:
#ifdef INT_COAL
pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
ha->coal_stat, ha->coal_stat_phys);
out_free_pmsg:
#endif
pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
ha->pmsg, ha->msg_phys);
out_free_pscratch:
pci_free_consistent(ha->pdev, GDTH_SCRATCH,
ha->pscratch, ha->scratch_phys);
out_dec_counters:
gdth_ctr_count--;
out_free_irq:
free_irq(ha->irq, ha);
out_host_put:
scsi_host_put(shp);
return error;
}
#endif /* CONFIG_ISA */
#ifdef CONFIG_EISA
static int __init gdth_eisa_probe_one(u16 eisa_slot)
{
struct Scsi_Host *shp;
gdth_ha_str *ha;
dma_addr_t scratch_dma_handle = 0;
int error, i;
if (!gdth_search_eisa(eisa_slot))
return -ENXIO;
shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
if (!shp)
return -ENOMEM;
ha = shost_priv(shp);
error = -ENODEV;
if (!gdth_init_eisa(eisa_slot,ha))
goto out_host_put;
/* controller found and initialized */
printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
eisa_slot >> 12, ha->irq);
error = request_irq(ha->irq, gdth_interrupt, 0, "gdth", ha);
if (error) {
printk("GDT-EISA: Unable to allocate IRQ\n");
goto out_host_put;
}
shp->unchecked_isa_dma = 0;
shp->irq = ha->irq;
shp->dma_channel = 0xff;
ha->hanum = gdth_ctr_count++;
ha->shost = shp;
TRACE2(("EISA detect Bus 0: hanum %d\n", ha->hanum));
ha->pccb = &ha->cmdext;
ha->ccb_phys = 0L;
error = -ENOMEM;
ha->pdev = NULL;
ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
&scratch_dma_handle);
if (!ha->pscratch)
goto out_free_irq;
ha->scratch_phys = scratch_dma_handle;
ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
&scratch_dma_handle);
if (!ha->pmsg)
goto out_free_pscratch;
ha->msg_phys = scratch_dma_handle;
#ifdef INT_COAL
ha->coal_stat = pci_alloc_consistent(ha->pdev,
sizeof(gdth_coal_status) * MAXOFFSETS,
&scratch_dma_handle);
if (!ha->coal_stat)
goto out_free_pmsg;
ha->coal_stat_phys = scratch_dma_handle;
#endif
ha->ccb_phys = pci_map_single(ha->pdev,ha->pccb,
sizeof(gdth_cmd_str), PCI_DMA_BIDIRECTIONAL);
if (!ha->ccb_phys)
goto out_free_coal_stat;
ha->scratch_busy = FALSE;
ha->req_first = NULL;
ha->tid_cnt = MAX_HDRIVES;
if (max_ids > 0 && max_ids < ha->tid_cnt)
ha->tid_cnt = max_ids;
for (i = 0; i < GDTH_MAXCMDS; ++i)
ha->cmd_tab[i].cmnd = UNUSED_CMND;
ha->scan_mode = rescan ? 0x10 : 0;
if (!gdth_search_drives(ha)) {
printk("GDT-EISA: Error during device scan\n");
error = -ENODEV;
goto out_free_ccb_phys;
}
if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
hdr_channel = ha->bus_cnt;
ha->virt_bus = hdr_channel;
if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
shp->max_cmd_len = 16;
shp->max_id = ha->tid_cnt;
shp->max_lun = MAXLUN;
shp->max_channel = ha->bus_cnt;
spin_lock_init(&ha->smp_lock);
gdth_enable_int(ha);
error = scsi_add_host(shp, NULL);
if (error)
goto out_free_ccb_phys;
list_add_tail(&ha->list, &gdth_instances);
gdth_timer_init();
scsi_scan_host(shp);
return 0;
out_free_ccb_phys:
pci_unmap_single(ha->pdev,ha->ccb_phys, sizeof(gdth_cmd_str),
PCI_DMA_BIDIRECTIONAL);
out_free_coal_stat:
#ifdef INT_COAL
pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
ha->coal_stat, ha->coal_stat_phys);
out_free_pmsg:
#endif
pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
ha->pmsg, ha->msg_phys);
out_free_pscratch:
pci_free_consistent(ha->pdev, GDTH_SCRATCH,
ha->pscratch, ha->scratch_phys);
out_free_irq:
free_irq(ha->irq, ha);
gdth_ctr_count--;
out_host_put:
scsi_host_put(shp);
return error;
}
#endif /* CONFIG_EISA */
#ifdef CONFIG_PCI
static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
{
struct Scsi_Host *shp;
gdth_ha_str *ha;
dma_addr_t scratch_dma_handle = 0;
int error, i;
struct pci_dev *pdev = pcistr->pdev;
*ha_out = NULL;
shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
if (!shp)
return -ENOMEM;
ha = shost_priv(shp);
error = -ENODEV;
if (!gdth_init_pci(pdev, pcistr, ha))
goto out_host_put;
/* controller found and initialized */
printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
pdev->bus->number,
PCI_SLOT(pdev->devfn),
ha->irq);
error = request_irq(ha->irq, gdth_interrupt,
IRQF_SHARED, "gdth", ha);
if (error) {
printk("GDT-PCI: Unable to allocate IRQ\n");
goto out_host_put;
}
shp->unchecked_isa_dma = 0;
shp->irq = ha->irq;
shp->dma_channel = 0xff;
ha->hanum = gdth_ctr_count++;
ha->shost = shp;
ha->pccb = &ha->cmdext;
ha->ccb_phys = 0L;
error = -ENOMEM;
ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
&scratch_dma_handle);
if (!ha->pscratch)
goto out_free_irq;
ha->scratch_phys = scratch_dma_handle;
ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
&scratch_dma_handle);
if (!ha->pmsg)
goto out_free_pscratch;
ha->msg_phys = scratch_dma_handle;
#ifdef INT_COAL
ha->coal_stat = pci_alloc_consistent(ha->pdev,
sizeof(gdth_coal_status) * MAXOFFSETS,
&scratch_dma_handle);
if (!ha->coal_stat)
goto out_free_pmsg;
ha->coal_stat_phys = scratch_dma_handle;
#endif
ha->scratch_busy = FALSE;
ha->req_first = NULL;
ha->tid_cnt = pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
if (max_ids > 0 && max_ids < ha->tid_cnt)
ha->tid_cnt = max_ids;
for (i = 0; i < GDTH_MAXCMDS; ++i)
ha->cmd_tab[i].cmnd = UNUSED_CMND;
ha->scan_mode = rescan ? 0x10 : 0;
error = -ENODEV;
if (!gdth_search_drives(ha)) {
printk("GDT-PCI %d: Error during device scan\n", ha->hanum);
goto out_free_coal_stat;
}
if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
hdr_channel = ha->bus_cnt;
ha->virt_bus = hdr_channel;
/* 64-bit DMA only supported from FW >= x.43 */
if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
!ha->dma64_support) {
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
printk(KERN_WARNING "GDT-PCI %d: "
"Unable to set 32-bit DMA\n", ha->hanum);
goto out_free_coal_stat;
}
} else {
shp->max_cmd_len = 16;
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
} else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
printk(KERN_WARNING "GDT-PCI %d: "
"Unable to set 64/32-bit DMA\n", ha->hanum);
goto out_free_coal_stat;
}
}
shp->max_id = ha->tid_cnt;
shp->max_lun = MAXLUN;
shp->max_channel = ha->bus_cnt;
spin_lock_init(&ha->smp_lock);
gdth_enable_int(ha);
error = scsi_add_host(shp, &pdev->dev);
if (error)
goto out_free_coal_stat;
list_add_tail(&ha->list, &gdth_instances);
pci_set_drvdata(ha->pdev, ha);
gdth_timer_init();
scsi_scan_host(shp);
*ha_out = ha;
return 0;
out_free_coal_stat:
#ifdef INT_COAL
pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
ha->coal_stat, ha->coal_stat_phys);
out_free_pmsg:
#endif
pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
ha->pmsg, ha->msg_phys);
out_free_pscratch:
pci_free_consistent(ha->pdev, GDTH_SCRATCH,
ha->pscratch, ha->scratch_phys);
out_free_irq:
free_irq(ha->irq, ha);
gdth_ctr_count--;
out_host_put:
scsi_host_put(shp);
return error;
}
#endif /* CONFIG_PCI */
static void gdth_remove_one(gdth_ha_str *ha)
{
struct Scsi_Host *shp = ha->shost;
TRACE2(("gdth_remove_one()\n"));
scsi_remove_host(shp);
gdth_flush(ha);
if (ha->sdev) {
scsi_free_host_dev(ha->sdev);
ha->sdev = NULL;
}
if (shp->irq)
free_irq(shp->irq,ha);
#ifdef CONFIG_ISA
if (shp->dma_channel != 0xff)
free_dma(shp->dma_channel);
#endif
#ifdef INT_COAL
if (ha->coal_stat)
pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
#endif
if (ha->pscratch)
pci_free_consistent(ha->pdev, GDTH_SCRATCH,
ha->pscratch, ha->scratch_phys);
if (ha->pmsg)
pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
ha->pmsg, ha->msg_phys);
if (ha->ccb_phys)
pci_unmap_single(ha->pdev,ha->ccb_phys,
sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
scsi_host_put(shp);
}
static int gdth_halt(struct notifier_block *nb, unsigned long event, void *buf)
{
gdth_ha_str *ha;
TRACE2(("gdth_halt() event %d\n", (int)event));
if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
return NOTIFY_DONE;
list_for_each_entry(ha, &gdth_instances, list)
gdth_flush(ha);
return NOTIFY_OK;
}
static struct notifier_block gdth_notifier = {
gdth_halt, NULL, 0
};
static int __init gdth_init(void)
{
if (disable) {
printk("GDT-HA: Controller driver disabled from"
" command line !\n");
return 0;
}
printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",
GDTH_VERSION_STR);
/* initializations */
gdth_polling = TRUE;
gdth_clear_events();
init_timer(&gdth_timer);
/* As default we do not probe for EISA or ISA controllers */
if (probe_eisa_isa) {
/* scanning for controllers, at first: ISA controller */
#ifdef CONFIG_ISA
u32 isa_bios;
for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
isa_bios += 0x8000UL)
gdth_isa_probe_one(isa_bios);
#endif
#ifdef CONFIG_EISA
{
u16 eisa_slot;
for (eisa_slot = 0x1000; eisa_slot <= 0x8000;
eisa_slot += 0x1000)
gdth_eisa_probe_one(eisa_slot);
}
#endif
}
#ifdef CONFIG_PCI
/* scanning for PCI controllers */
if (pci_register_driver(&gdth_pci_driver)) {
gdth_ha_str *ha;
list_for_each_entry(ha, &gdth_instances, list)
gdth_remove_one(ha);
return -ENODEV;
}
#endif /* CONFIG_PCI */
TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
major = register_chrdev(0,"gdth", &gdth_fops);
register_reboot_notifier(&gdth_notifier);
gdth_polling = FALSE;
return 0;
}
static void __exit gdth_exit(void)
{
gdth_ha_str *ha;
unregister_chrdev(major, "gdth");
unregister_reboot_notifier(&gdth_notifier);
#ifdef GDTH_STATISTICS
del_timer_sync(&gdth_timer);
#endif
#ifdef CONFIG_PCI
pci_unregister_driver(&gdth_pci_driver);
#endif
list_for_each_entry(ha, &gdth_instances, list)
gdth_remove_one(ha);
}
module_init(gdth_init);
module_exit(gdth_exit);
#ifndef MODULE
__setup("gdth=", option_setup);
#endif
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