mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
[SCSI] gdth: switch to modern scsi host registration
- Use scsi_add_host and friends and track instances ourselves. And generally modernize the driver's structure. - TODO: Next we can remove the controller table - TODO: Fix use of deprecated pci_find_device() Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
parent
10e1b4bc92
commit
835cc24aff
2 changed files with 157 additions and 164 deletions
|
@ -119,6 +119,7 @@
|
|||
#include <linux/time.h>
|
||||
#include <linux/timer.h>
|
||||
#include <linux/dma-mapping.h>
|
||||
#include <linux/list.h>
|
||||
|
||||
#ifdef GDTH_RTC
|
||||
#include <linux/mc146818rtc.h>
|
||||
|
@ -184,15 +185,6 @@ static void gdth_flush(gdth_ha_str *ha);
|
|||
static int gdth_halt(struct notifier_block *nb, ulong event, void *buf);
|
||||
static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *));
|
||||
static void gdth_scsi_done(struct scsi_cmnd *scp);
|
||||
#ifdef CONFIG_ISA
|
||||
static int gdth_isa_probe_one(struct scsi_host_template *, ulong32);
|
||||
#endif
|
||||
#ifdef CONFIG_EISA
|
||||
static int gdth_eisa_probe_one(struct scsi_host_template *, ushort);
|
||||
#endif
|
||||
#ifdef CONFIG_PCI
|
||||
static int gdth_pci_probe_one(struct scsi_host_template *, gdth_pci_str *, int);
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG_GDTH
|
||||
static unchar DebugState = DEBUG_GDTH;
|
||||
|
@ -298,8 +290,8 @@ static unchar gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */
|
|||
#endif
|
||||
static unchar gdth_polling; /* polling if TRUE */
|
||||
static int gdth_ctr_count = 0; /* controller count */
|
||||
static int gdth_ctr_released = 0; /* gdth_release() */
|
||||
static struct Scsi_Host *gdth_ctr_tab[MAXHA]; /* controller table */
|
||||
static LIST_HEAD(gdth_instances);
|
||||
static unchar gdth_write_through = FALSE; /* write through */
|
||||
static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */
|
||||
static int elastidx;
|
||||
|
@ -3872,145 +3864,6 @@ int __init option_setup(char *str)
|
|||
return 1;
|
||||
}
|
||||
|
||||
static int __init gdth_detect(struct scsi_host_template *shtp)
|
||||
{
|
||||
#ifdef DEBUG_GDTH
|
||||
printk("GDT: This driver contains debugging information !! Trace level = %d\n",
|
||||
DebugState);
|
||||
printk(" Destination of debugging information: ");
|
||||
#ifdef __SERIAL__
|
||||
#ifdef __COM2__
|
||||
printk("Serial port COM2\n");
|
||||
#else
|
||||
printk("Serial port COM1\n");
|
||||
#endif
|
||||
#else
|
||||
printk("Console\n");
|
||||
#endif
|
||||
gdth_delay(3000);
|
||||
#endif
|
||||
|
||||
TRACE(("gdth_detect()\n"));
|
||||
|
||||
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();
|
||||
|
||||
/* 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
|
||||
ulong32 isa_bios;
|
||||
for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
|
||||
isa_bios += 0x8000UL) {
|
||||
if (gdth_ctr_count >= MAXHA)
|
||||
break;
|
||||
gdth_isa_probe_one(shtp, isa_bios);
|
||||
}
|
||||
#endif
|
||||
#ifdef CONFIG_EISA
|
||||
{
|
||||
ushort eisa_slot;
|
||||
for (eisa_slot = 0x1000; eisa_slot <= 0x8000; eisa_slot += 0x1000) {
|
||||
if (gdth_ctr_count >= MAXHA)
|
||||
break;
|
||||
gdth_eisa_probe_one(shtp, eisa_slot);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PCI
|
||||
/* scanning for PCI controllers */
|
||||
{
|
||||
gdth_pci_str pcistr[MAXHA];
|
||||
int cnt,ctr;
|
||||
|
||||
cnt = gdth_search_pci(pcistr);
|
||||
printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt);
|
||||
gdth_sort_pci(pcistr,cnt);
|
||||
for (ctr = 0; ctr < cnt; ++ctr) {
|
||||
if (gdth_ctr_count >= MAXHA)
|
||||
break;
|
||||
gdth_pci_probe_one(shtp, pcistr, ctr);
|
||||
}
|
||||
}
|
||||
#endif /* CONFIG_PCI */
|
||||
|
||||
TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
|
||||
if (gdth_ctr_count > 0) {
|
||||
#ifdef GDTH_STATISTICS
|
||||
TRACE2(("gdth_detect(): Initializing timer !\n"));
|
||||
init_timer(&gdth_timer);
|
||||
gdth_timer.expires = jiffies + HZ;
|
||||
gdth_timer.data = 0L;
|
||||
gdth_timer.function = gdth_timeout;
|
||||
add_timer(&gdth_timer);
|
||||
#endif
|
||||
major = register_chrdev(0,"gdth",&gdth_fops);
|
||||
notifier_disabled = 0;
|
||||
register_reboot_notifier(&gdth_notifier);
|
||||
}
|
||||
gdth_polling = FALSE;
|
||||
return gdth_ctr_count;
|
||||
}
|
||||
|
||||
static int gdth_release(struct Scsi_Host *shp)
|
||||
{
|
||||
gdth_ha_str *ha = shost_priv(shp);
|
||||
|
||||
TRACE2(("gdth_release()\n"));
|
||||
if (ha->sdev) {
|
||||
scsi_free_host_dev(ha->sdev);
|
||||
ha->sdev = NULL;
|
||||
}
|
||||
gdth_flush(ha);
|
||||
|
||||
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);
|
||||
gdth_ctr_released++;
|
||||
TRACE2(("gdth_release(): HA %d of %d\n",
|
||||
gdth_ctr_released, gdth_ctr_count));
|
||||
|
||||
if (gdth_ctr_released == gdth_ctr_count) {
|
||||
#ifdef GDTH_STATISTICS
|
||||
del_timer(&gdth_timer);
|
||||
#endif
|
||||
unregister_chrdev(major,"gdth");
|
||||
unregister_reboot_notifier(&gdth_notifier);
|
||||
}
|
||||
|
||||
scsi_unregister(shp);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static const char *gdth_ctr_name(gdth_ha_str *ha)
|
||||
{
|
||||
TRACE2(("gdth_ctr_name()\n"));
|
||||
|
@ -4819,10 +4672,8 @@ static int gdth_slave_configure(struct scsi_device *sdev)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static struct scsi_host_template driver_template = {
|
||||
static struct scsi_host_template gdth_template = {
|
||||
.name = "GDT SCSI Disk Array Controller",
|
||||
.detect = gdth_detect,
|
||||
.release = gdth_release,
|
||||
.info = gdth_info,
|
||||
.queuecommand = gdth_queuecommand,
|
||||
.eh_bus_reset_handler = gdth_eh_bus_reset,
|
||||
|
@ -4839,7 +4690,7 @@ static struct scsi_host_template driver_template = {
|
|||
};
|
||||
|
||||
#ifdef CONFIG_ISA
|
||||
static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios)
|
||||
static int gdth_isa_probe_one(ulong32 isa_bios)
|
||||
{
|
||||
struct Scsi_Host *shp;
|
||||
gdth_ha_str *ha;
|
||||
|
@ -4849,7 +4700,7 @@ static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios)
|
|||
if (!gdth_search_isa(isa_bios))
|
||||
return -ENXIO;
|
||||
|
||||
shp = scsi_register(shtp, sizeof(gdth_ha_str));
|
||||
shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
|
||||
if (!shp)
|
||||
return -ENOMEM;
|
||||
ha = shost_priv(shp);
|
||||
|
@ -4941,6 +4792,10 @@ static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios)
|
|||
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);
|
||||
return 0;
|
||||
|
||||
out_free_coal_stat:
|
||||
|
@ -4959,14 +4814,13 @@ static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios)
|
|||
out_free_irq:
|
||||
free_irq(ha->irq, ha);
|
||||
out_host_put:
|
||||
scsi_unregister(shp);
|
||||
scsi_host_put(shp);
|
||||
return error;
|
||||
}
|
||||
#endif /* CONFIG_ISA */
|
||||
|
||||
#ifdef CONFIG_EISA
|
||||
static int gdth_eisa_probe_one(struct scsi_host_template *shtp,
|
||||
ushort eisa_slot)
|
||||
static int gdth_eisa_probe_one(ushort eisa_slot)
|
||||
{
|
||||
struct Scsi_Host *shp;
|
||||
gdth_ha_str *ha;
|
||||
|
@ -4976,7 +4830,7 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp,
|
|||
if (!gdth_search_eisa(eisa_slot))
|
||||
return -ENXIO;
|
||||
|
||||
shp = scsi_register(shtp,sizeof(gdth_ha_str));
|
||||
shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
|
||||
if (!shp)
|
||||
return -ENOMEM;
|
||||
ha = shost_priv(shp);
|
||||
|
@ -5066,6 +4920,11 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp,
|
|||
|
||||
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);
|
||||
return 0;
|
||||
|
||||
out_free_ccb_phys:
|
||||
|
@ -5086,21 +4945,20 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp,
|
|||
free_irq(ha->irq, ha);
|
||||
gdth_ctr_count--;
|
||||
out_host_put:
|
||||
scsi_unregister(shp);
|
||||
scsi_host_put(shp);
|
||||
return error;
|
||||
}
|
||||
#endif /* CONFIG_EISA */
|
||||
|
||||
#ifdef CONFIG_PCI
|
||||
static int gdth_pci_probe_one(struct scsi_host_template *shtp,
|
||||
gdth_pci_str *pcistr, int ctr)
|
||||
static int gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
|
||||
{
|
||||
struct Scsi_Host *shp;
|
||||
gdth_ha_str *ha;
|
||||
dma_addr_t scratch_dma_handle = 0;
|
||||
int error, hanum, i;
|
||||
|
||||
shp = scsi_register(shtp,sizeof(gdth_ha_str));
|
||||
shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
|
||||
if (!shp)
|
||||
return -ENOMEM;
|
||||
ha = shost_priv(shp);
|
||||
|
@ -5201,6 +5059,11 @@ static int gdth_pci_probe_one(struct scsi_host_template *shtp,
|
|||
|
||||
spin_lock_init(&ha->smp_lock);
|
||||
gdth_enable_int(ha);
|
||||
|
||||
error = scsi_add_host(shp, &pcistr[ctr].pdev->dev);
|
||||
if (error)
|
||||
goto out_free_coal_stat;
|
||||
list_add_tail(&ha->list, &gdth_instances);
|
||||
return 0;
|
||||
|
||||
out_free_coal_stat:
|
||||
|
@ -5218,12 +5081,141 @@ static int gdth_pci_probe_one(struct scsi_host_template *shtp,
|
|||
free_irq(ha->irq, ha);
|
||||
gdth_ctr_count--;
|
||||
out_host_put:
|
||||
scsi_unregister(shp);
|
||||
scsi_host_put(shp);
|
||||
return error;
|
||||
}
|
||||
#endif /* CONFIG_PCI */
|
||||
|
||||
#include "scsi_module.c"
|
||||
static void gdth_remove_one(gdth_ha_str *ha)
|
||||
{
|
||||
struct Scsi_Host *shp = ha->shost;
|
||||
|
||||
TRACE2(("gdth_remove_one()\n"));
|
||||
|
||||
scsi_remove_host(shp);
|
||||
|
||||
if (ha->sdev) {
|
||||
scsi_free_host_dev(ha->sdev);
|
||||
ha->sdev = NULL;
|
||||
}
|
||||
|
||||
gdth_flush(ha);
|
||||
|
||||
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 __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();
|
||||
|
||||
/* 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
|
||||
ulong32 isa_bios;
|
||||
for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
|
||||
isa_bios += 0x8000UL) {
|
||||
if (gdth_ctr_count >= MAXHA)
|
||||
break;
|
||||
gdth_isa_probe_one(isa_bios);
|
||||
}
|
||||
#endif
|
||||
#ifdef CONFIG_EISA
|
||||
{
|
||||
ushort eisa_slot;
|
||||
for (eisa_slot = 0x1000; eisa_slot <= 0x8000;
|
||||
eisa_slot += 0x1000) {
|
||||
if (gdth_ctr_count >= MAXHA)
|
||||
break;
|
||||
gdth_eisa_probe_one(eisa_slot);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PCI
|
||||
/* scanning for PCI controllers */
|
||||
{
|
||||
gdth_pci_str pcistr[MAXHA];
|
||||
int cnt,ctr;
|
||||
|
||||
cnt = gdth_search_pci(pcistr);
|
||||
printk("GDT-HA: Found %d PCI Storage RAID Controllers\n", cnt);
|
||||
gdth_sort_pci(pcistr,cnt);
|
||||
for (ctr = 0; ctr < cnt; ++ctr) {
|
||||
if (gdth_ctr_count >= MAXHA)
|
||||
break;
|
||||
gdth_pci_probe_one(pcistr, ctr);
|
||||
}
|
||||
}
|
||||
#endif /* CONFIG_PCI */
|
||||
|
||||
TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
|
||||
#ifdef GDTH_STATISTICS
|
||||
TRACE2(("gdth_detect(): Initializing timer !\n"));
|
||||
init_timer(&gdth_timer);
|
||||
gdth_timer.expires = jiffies + HZ;
|
||||
gdth_timer.data = 0L;
|
||||
gdth_timer.function = gdth_timeout;
|
||||
add_timer(&gdth_timer);
|
||||
#endif
|
||||
major = register_chrdev(0,"gdth", &gdth_fops);
|
||||
notifier_disabled = 0;
|
||||
register_reboot_notifier(&gdth_notifier);
|
||||
gdth_polling = FALSE;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit gdth_exit(void)
|
||||
{
|
||||
gdth_ha_str *ha;
|
||||
|
||||
list_for_each_entry(ha, &gdth_instances, list)
|
||||
gdth_remove_one(ha);
|
||||
|
||||
#ifdef GDTH_STATISTICS
|
||||
del_timer(&gdth_timer);
|
||||
#endif
|
||||
unregister_chrdev(major,"gdth");
|
||||
unregister_reboot_notifier(&gdth_notifier);
|
||||
}
|
||||
|
||||
module_init(gdth_init);
|
||||
module_exit(gdth_exit);
|
||||
|
||||
#ifndef MODULE
|
||||
__setup("gdth=", option_setup);
|
||||
#endif
|
||||
|
|
|
@ -854,6 +854,7 @@ typedef struct {
|
|||
/* controller information structure */
|
||||
typedef struct {
|
||||
struct Scsi_Host *shost;
|
||||
struct list_head list;
|
||||
ushort hanum;
|
||||
ushort oem_id; /* OEM */
|
||||
ushort type; /* controller class */
|
||||
|
|
Loading…
Reference in a new issue