forked from luck/tmp_suning_uos_patched
[SCSI] aic7xxx: remove ahc_tailq
now that we do normal PCI probing there's no need to keep a list of all HBAs. Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig
James Bottomley
parent
dfd287f6ee
commit
2a40342e0e
@ -254,19 +254,12 @@ aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
|
||||
if (error != 0)
|
||||
return (error);
|
||||
|
||||
ahc_list_lock(&l);
|
||||
/*
|
||||
* Link this softc in with all other ahc instances.
|
||||
*/
|
||||
ahc_softc_insert(ahc);
|
||||
ahc->init_level++;
|
||||
|
||||
/*
|
||||
* Enable the board's BUS drivers
|
||||
*/
|
||||
ahc_outb(ahc, BCTL, ENABLE);
|
||||
|
||||
ahc_list_unlock(&l);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
@ -1023,9 +1023,6 @@ struct ahc_softc {
|
||||
struct cs *critical_sections;
|
||||
u_int num_critical_sections;
|
||||
|
||||
/* Links for chaining softcs */
|
||||
TAILQ_ENTRY(ahc_softc) links;
|
||||
|
||||
/* Channel Names ('A', 'B', etc.) */
|
||||
char channel;
|
||||
char channel_b;
|
||||
@ -1110,9 +1107,6 @@ struct ahc_softc {
|
||||
uint16_t user_tagenable;/* Tagged Queuing allowed */
|
||||
};
|
||||
|
||||
TAILQ_HEAD(ahc_softc_tailq, ahc_softc);
|
||||
extern struct ahc_softc_tailq ahc_tailq;
|
||||
|
||||
/************************ Active Device Information ***************************/
|
||||
typedef enum {
|
||||
ROLE_UNKNOWN,
|
||||
@ -1198,7 +1192,6 @@ void ahc_intr_enable(struct ahc_softc *ahc, int enable);
|
||||
void ahc_pause_and_flushwork(struct ahc_softc *ahc);
|
||||
int ahc_suspend(struct ahc_softc *ahc);
|
||||
int ahc_resume(struct ahc_softc *ahc);
|
||||
void ahc_softc_insert(struct ahc_softc *);
|
||||
void ahc_set_unit(struct ahc_softc *, int);
|
||||
void ahc_set_name(struct ahc_softc *, char *);
|
||||
void ahc_alloc_scbs(struct ahc_softc *ahc);
|
||||
|
||||
@ -52,9 +52,6 @@
|
||||
#include <dev/aic7xxx/aicasm/aicasm_insformat.h>
|
||||
#endif
|
||||
|
||||
/****************************** Softc Data ************************************/
|
||||
struct ahc_softc_tailq ahc_tailq = TAILQ_HEAD_INITIALIZER(ahc_tailq);
|
||||
|
||||
/***************************** Lookup Tables **********************************/
|
||||
char *ahc_chip_names[] =
|
||||
{
|
||||
@ -3878,62 +3875,6 @@ ahc_softc_init(struct ahc_softc *ahc)
|
||||
return (0);
|
||||
}
|
||||
|
||||
void
|
||||
ahc_softc_insert(struct ahc_softc *ahc)
|
||||
{
|
||||
struct ahc_softc *list_ahc;
|
||||
|
||||
#if AHC_PCI_CONFIG > 0
|
||||
/*
|
||||
* Second Function PCI devices need to inherit some
|
||||
* settings from function 0.
|
||||
*/
|
||||
if ((ahc->chip & AHC_BUS_MASK) == AHC_PCI
|
||||
&& (ahc->features & AHC_MULTI_FUNC) != 0) {
|
||||
TAILQ_FOREACH(list_ahc, &ahc_tailq, links) {
|
||||
ahc_dev_softc_t list_pci;
|
||||
ahc_dev_softc_t pci;
|
||||
|
||||
list_pci = list_ahc->dev_softc;
|
||||
pci = ahc->dev_softc;
|
||||
if (ahc_get_pci_slot(list_pci) == ahc_get_pci_slot(pci)
|
||||
&& ahc_get_pci_bus(list_pci) == ahc_get_pci_bus(pci)) {
|
||||
struct ahc_softc *master;
|
||||
struct ahc_softc *slave;
|
||||
|
||||
if (ahc_get_pci_function(list_pci) == 0) {
|
||||
master = list_ahc;
|
||||
slave = ahc;
|
||||
} else {
|
||||
master = ahc;
|
||||
slave = list_ahc;
|
||||
}
|
||||
slave->flags &= ~AHC_BIOS_ENABLED;
|
||||
slave->flags |=
|
||||
master->flags & AHC_BIOS_ENABLED;
|
||||
slave->flags &= ~AHC_PRIMARY_CHANNEL;
|
||||
slave->flags |=
|
||||
master->flags & AHC_PRIMARY_CHANNEL;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Insertion sort into our list of softcs.
|
||||
*/
|
||||
list_ahc = TAILQ_FIRST(&ahc_tailq);
|
||||
while (list_ahc != NULL
|
||||
&& ahc_softc_comp(ahc, list_ahc) <= 0)
|
||||
list_ahc = TAILQ_NEXT(list_ahc, links);
|
||||
if (list_ahc != NULL)
|
||||
TAILQ_INSERT_BEFORE(list_ahc, ahc, links);
|
||||
else
|
||||
TAILQ_INSERT_TAIL(&ahc_tailq, ahc, links);
|
||||
ahc->init_level++;
|
||||
}
|
||||
|
||||
void
|
||||
ahc_set_unit(struct ahc_softc *ahc, int unit)
|
||||
{
|
||||
|
||||
@ -136,10 +136,6 @@ static struct scsi_transport_template *ahc_linux_transport_template = NULL;
|
||||
#include <linux/blkdev.h> /* For block_size() */
|
||||
#include <linux/delay.h> /* For ssleep/msleep */
|
||||
|
||||
/*
|
||||
* Lock protecting manipulation of the ahc softc list.
|
||||
*/
|
||||
spinlock_t ahc_list_spinlock;
|
||||
|
||||
/*
|
||||
* Set this to the delay in seconds after SCSI bus reset.
|
||||
@ -291,25 +287,6 @@ ahc_print_path(struct ahc_softc *ahc, struct scb *scb)
|
||||
*/
|
||||
static uint32_t aic7xxx_no_reset;
|
||||
|
||||
/*
|
||||
* Certain PCI motherboards will scan PCI devices from highest to lowest,
|
||||
* others scan from lowest to highest, and they tend to do all kinds of
|
||||
* strange things when they come into contact with PCI bridge chips. The
|
||||
* net result of all this is that the PCI card that is actually used to boot
|
||||
* the machine is very hard to detect. Most motherboards go from lowest
|
||||
* PCI slot number to highest, and the first SCSI controller found is the
|
||||
* one you boot from. The only exceptions to this are when a controller
|
||||
* has its BIOS disabled. So, we by default sort all of our SCSI controllers
|
||||
* from lowest PCI slot number to highest PCI slot number. We also force
|
||||
* all controllers with their BIOS disabled to the end of the list. This
|
||||
* works on *almost* all computers. Where it doesn't work, we have this
|
||||
* option. Setting this option to non-0 will reverse the order of the sort
|
||||
* to highest first, then lowest, but will still leave cards with their BIOS
|
||||
* disabled at the very end. That should fix everyone up unless there are
|
||||
* really strange cirumstances.
|
||||
*/
|
||||
static uint32_t aic7xxx_reverse_scan;
|
||||
|
||||
/*
|
||||
* Should we force EXTENDED translation on a controller.
|
||||
* 0 == Use whatever is in the SEEPROM or default to off
|
||||
@ -416,7 +393,9 @@ static int ahc_linux_run_command(struct ahc_softc*,
|
||||
static void ahc_linux_setup_tag_info_global(char *p);
|
||||
static aic_option_callback_t ahc_linux_setup_tag_info;
|
||||
static int aic7xxx_setup(char *s);
|
||||
static int ahc_linux_next_unit(void);
|
||||
|
||||
static int ahc_linux_unit;
|
||||
|
||||
|
||||
/********************************* Inlines ************************************/
|
||||
static __inline void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*);
|
||||
@ -911,99 +890,6 @@ ahc_dmamap_unload(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/********************* Platform Dependent Functions ***************************/
|
||||
/*
|
||||
* Compare "left hand" softc with "right hand" softc, returning:
|
||||
* < 0 - lahc has a lower priority than rahc
|
||||
* 0 - Softcs are equal
|
||||
* > 0 - lahc has a higher priority than rahc
|
||||
*/
|
||||
int
|
||||
ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
|
||||
{
|
||||
int value;
|
||||
int rvalue;
|
||||
int lvalue;
|
||||
|
||||
/*
|
||||
* Under Linux, cards are ordered as follows:
|
||||
* 1) VLB/EISA BIOS enabled devices sorted by BIOS address.
|
||||
* 2) PCI devices with BIOS enabled sorted by bus/slot/func.
|
||||
* 3) All remaining VLB/EISA devices sorted by ioport.
|
||||
* 4) All remaining PCI devices sorted by bus/slot/func.
|
||||
*/
|
||||
value = (lahc->flags & AHC_BIOS_ENABLED)
|
||||
- (rahc->flags & AHC_BIOS_ENABLED);
|
||||
if (value != 0)
|
||||
/* Controllers with BIOS enabled have a *higher* priority */
|
||||
return (value);
|
||||
|
||||
/*
|
||||
* Same BIOS setting, now sort based on bus type.
|
||||
* EISA and VL controllers sort together. EISA/VL
|
||||
* have higher priority than PCI.
|
||||
*/
|
||||
rvalue = (rahc->chip & AHC_BUS_MASK);
|
||||
if (rvalue == AHC_VL)
|
||||
rvalue = AHC_EISA;
|
||||
lvalue = (lahc->chip & AHC_BUS_MASK);
|
||||
if (lvalue == AHC_VL)
|
||||
lvalue = AHC_EISA;
|
||||
value = rvalue - lvalue;
|
||||
if (value != 0)
|
||||
return (value);
|
||||
|
||||
/* Still equal. Sort by BIOS address, ioport, or bus/slot/func. */
|
||||
switch (rvalue) {
|
||||
#ifdef CONFIG_PCI
|
||||
case AHC_PCI:
|
||||
{
|
||||
char primary_channel;
|
||||
|
||||
if (aic7xxx_reverse_scan != 0)
|
||||
value = ahc_get_pci_bus(lahc->dev_softc)
|
||||
- ahc_get_pci_bus(rahc->dev_softc);
|
||||
else
|
||||
value = ahc_get_pci_bus(rahc->dev_softc)
|
||||
- ahc_get_pci_bus(lahc->dev_softc);
|
||||
if (value != 0)
|
||||
break;
|
||||
if (aic7xxx_reverse_scan != 0)
|
||||
value = ahc_get_pci_slot(lahc->dev_softc)
|
||||
- ahc_get_pci_slot(rahc->dev_softc);
|
||||
else
|
||||
value = ahc_get_pci_slot(rahc->dev_softc)
|
||||
- ahc_get_pci_slot(lahc->dev_softc);
|
||||
if (value != 0)
|
||||
break;
|
||||
/*
|
||||
* On multi-function devices, the user can choose
|
||||
* to have function 1 probed before function 0.
|
||||
* Give whichever channel is the primary channel
|
||||
* the highest priority.
|
||||
*/
|
||||
primary_channel = (lahc->flags & AHC_PRIMARY_CHANNEL) + 'A';
|
||||
value = -1;
|
||||
if (lahc->channel == primary_channel)
|
||||
value = 1;
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
case AHC_EISA:
|
||||
if ((rahc->flags & AHC_BIOS_ENABLED) != 0) {
|
||||
value = rahc->platform_data->bios_address
|
||||
- lahc->platform_data->bios_address;
|
||||
} else {
|
||||
value = rahc->bsh.ioport
|
||||
- lahc->bsh.ioport;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
panic("ahc_softc_sort: invalid bus type");
|
||||
}
|
||||
return (value);
|
||||
}
|
||||
|
||||
static void
|
||||
ahc_linux_setup_tag_info_global(char *p)
|
||||
{
|
||||
@ -1055,7 +941,6 @@ aic7xxx_setup(char *s)
|
||||
#ifdef AHC_DEBUG
|
||||
{ "debug", &ahc_debug },
|
||||
#endif
|
||||
{ "reverse_scan", &aic7xxx_reverse_scan },
|
||||
{ "periodic_otag", &aic7xxx_periodic_otag },
|
||||
{ "pci_parity", &aic7xxx_pci_parity },
|
||||
{ "seltime", &aic7xxx_seltime },
|
||||
@ -1130,7 +1015,7 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa
|
||||
host->max_lun = AHC_NUM_LUNS;
|
||||
host->max_channel = (ahc->features & AHC_TWIN) ? 1 : 0;
|
||||
host->sg_tablesize = AHC_NSEG;
|
||||
ahc_set_unit(ahc, ahc_linux_next_unit());
|
||||
ahc_set_unit(ahc, ahc_linux_unit++);
|
||||
sprintf(buf, "scsi%d", host->host_no);
|
||||
new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
|
||||
if (new_name != NULL) {
|
||||
@ -1158,29 +1043,6 @@ ahc_linux_get_memsize(void)
|
||||
return ((uint64_t)si.totalram << PAGE_SHIFT);
|
||||
}
|
||||
|
||||
/*
|
||||
* Find the smallest available unit number to use
|
||||
* for a new device. We don't just use a static
|
||||
* count to handle the "repeated hot-(un)plug"
|
||||
* scenario.
|
||||
*/
|
||||
static int
|
||||
ahc_linux_next_unit(void)
|
||||
{
|
||||
struct ahc_softc *ahc;
|
||||
int unit;
|
||||
|
||||
unit = 0;
|
||||
retry:
|
||||
TAILQ_FOREACH(ahc, &ahc_tailq, links) {
|
||||
if (ahc->unit == unit) {
|
||||
unit++;
|
||||
goto retry;
|
||||
}
|
||||
}
|
||||
return (unit);
|
||||
}
|
||||
|
||||
/*
|
||||
* Place the SCSI bus into a known state by either resetting it,
|
||||
* or forcing transfer negotiations on the next command to any
|
||||
@ -2685,12 +2547,6 @@ ahc_linux_init(void)
|
||||
scsi_transport_reserve_device(ahc_linux_transport_template,
|
||||
sizeof(struct ahc_linux_device));
|
||||
|
||||
/*
|
||||
* Initialize our softc list lock prior to
|
||||
* probing for any adapters.
|
||||
*/
|
||||
ahc_list_lockinit();
|
||||
|
||||
ahc_linux_pci_init();
|
||||
ahc_linux_eisa_init();
|
||||
return 0;
|
||||
|
||||
@ -509,15 +509,6 @@ void ahc_format_transinfo(struct info_str *info,
|
||||
|
||||
/******************************** Locking *************************************/
|
||||
/* Lock protecting internal data structures */
|
||||
static __inline void ahc_lockinit(struct ahc_softc *);
|
||||
static __inline void ahc_lock(struct ahc_softc *, unsigned long *flags);
|
||||
static __inline void ahc_unlock(struct ahc_softc *, unsigned long *flags);
|
||||
|
||||
/* Lock held during ahc_list manipulation and ahc softc frees */
|
||||
extern spinlock_t ahc_list_spinlock;
|
||||
static __inline void ahc_list_lockinit(void);
|
||||
static __inline void ahc_list_lock(unsigned long *flags);
|
||||
static __inline void ahc_list_unlock(unsigned long *flags);
|
||||
|
||||
static __inline void
|
||||
ahc_lockinit(struct ahc_softc *ahc)
|
||||
@ -537,24 +528,6 @@ ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
|
||||
spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
|
||||
}
|
||||
|
||||
static __inline void
|
||||
ahc_list_lockinit(void)
|
||||
{
|
||||
spin_lock_init(&ahc_list_spinlock);
|
||||
}
|
||||
|
||||
static __inline void
|
||||
ahc_list_lock(unsigned long *flags)
|
||||
{
|
||||
spin_lock_irqsave(&ahc_list_spinlock, *flags);
|
||||
}
|
||||
|
||||
static __inline void
|
||||
ahc_list_unlock(unsigned long *flags)
|
||||
{
|
||||
spin_unlock_irqrestore(&ahc_list_spinlock, *flags);
|
||||
}
|
||||
|
||||
/******************************* PCI Definitions ******************************/
|
||||
/*
|
||||
* PCIM_xxx: mask to locate subfield in register
|
||||
@ -891,7 +864,6 @@ int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
|
||||
irqreturn_t
|
||||
ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
|
||||
void ahc_platform_flushwork(struct ahc_softc *ahc);
|
||||
int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *);
|
||||
void ahc_done(struct ahc_softc*, struct scb*);
|
||||
void ahc_send_async(struct ahc_softc *, char channel,
|
||||
u_int target, u_int lun, ac_code, void *);
|
||||
|
||||
@ -143,10 +143,6 @@ ahc_linux_pci_dev_remove(struct pci_dev *pdev)
|
||||
struct ahc_softc *ahc = pci_get_drvdata(pdev);
|
||||
u_long s;
|
||||
|
||||
ahc_list_lock(&s);
|
||||
TAILQ_REMOVE(&ahc_tailq, ahc, links);
|
||||
ahc_list_unlock(&s);
|
||||
|
||||
ahc_lock(ahc, &s);
|
||||
ahc_intr_enable(ahc, FALSE);
|
||||
ahc_unlock(ahc, &s);
|
||||
|
||||
@ -704,7 +704,6 @@ ahc_find_pci_device(ahc_dev_softc_t pci)
|
||||
int
|
||||
ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry)
|
||||
{
|
||||
u_long l;
|
||||
u_int command;
|
||||
u_int our_id;
|
||||
u_int sxfrctl1;
|
||||
@ -964,12 +963,7 @@ ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry)
|
||||
if (error != 0)
|
||||
return (error);
|
||||
|
||||
ahc_list_lock(&l);
|
||||
/*
|
||||
* Link this softc in with all other ahc instances.
|
||||
*/
|
||||
ahc_softc_insert(ahc);
|
||||
ahc_list_unlock(&l);
|
||||
ahc->init_level++;
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user