#undef PCI_BAR_OFFSET
}
-/*
- * Insert a delay in micro-seconds and milli-seconds.
- */
-void sym_udelay(int us) { udelay(us); }
-void sym_mdelay(int ms) { mdelay(ms); }
-
-/*
- * SMP threading.
- *
- * The whole SCSI sub-system under Linux is basically single-threaded.
- * Everything, including low-level driver interrupt routine, happens
- * with the `io_request_lock' held.
- * The sym53c8xx-1.x drivers series ran their interrupt code using a
- * spin mutex per controller. This added complexity without improving
- * scalability significantly. the sym-2 driver still use a spinlock
- * per controller for safety, but basically runs with the damned
- * io_request_lock held.
- */
-
-spinlock_t sym53c8xx_lock = SPIN_LOCK_UNLOCKED;
-
-#define SYM_LOCK_DRIVER(flags) spin_lock_irqsave(&sym53c8xx_lock, flags)
-#define SYM_UNLOCK_DRIVER(flags) spin_unlock_irqrestore(&sym53c8xx_lock,flags)
-
#define SYM_INIT_LOCK_HCB(np) spin_lock_init((np)->s.host->host_lock);
#define SYM_LOCK_HCB(np, flags) \
spin_lock_irqsave((np)->s.host->host_lock, flags)
#define ktime_add(a, o) ((a) + (u_long)(o))
#define ktime_sub(a, o) ((a) - (u_long)(o))
+/* This lock protects only the memory allocation/free. */
+spinlock_t sym53c8xx_lock = SPIN_LOCK_UNLOCKED;
+
/*
* Wrappers to the generic memory allocator.
*/
{
u_long flags;
void *m;
- SYM_LOCK_DRIVER(flags);
+ spin_lock_irqsave(&sym53c8xx_lock, flags);
m = sym_calloc_unlocked(size, name);
- SYM_UNLOCK_DRIVER(flags);
+ spin_unlock_irqrestore(&sym53c8xx_lock, flags);
return m;
}
void sym_mfree(void *m, int size, char *name)
{
u_long flags;
- SYM_LOCK_DRIVER(flags);
+ spin_lock_irqsave(&sym53c8xx_lock, flags);
sym_mfree_unlocked(m, size, name);
- SYM_UNLOCK_DRIVER(flags);
+ spin_unlock_irqrestore(&sym53c8xx_lock, flags);
}
-#ifdef SYM_LINUX_DYNAMIC_DMA_MAPPING
-
void *__sym_calloc_dma(m_pool_ident_t dev_dmat, int size, char *name)
{
u_long flags;
void *m;
- SYM_LOCK_DRIVER(flags);
+ spin_lock_irqsave(&sym53c8xx_lock, flags);
m = __sym_calloc_dma_unlocked(dev_dmat, size, name);
- SYM_UNLOCK_DRIVER(flags);
+ spin_unlock_irqrestore(&sym53c8xx_lock, flags);
return m;
}
void __sym_mfree_dma(m_pool_ident_t dev_dmat, void *m, int size, char *name)
{
u_long flags;
- SYM_LOCK_DRIVER(flags);
+ spin_lock_irqsave(&sym53c8xx_lock, flags);
__sym_mfree_dma_unlocked(dev_dmat, m, size, name);
- SYM_UNLOCK_DRIVER(flags);
+ spin_unlock_irqrestore(&sym53c8xx_lock, flags);
}
m_addr_t __vtobus(m_pool_ident_t dev_dmat, void *m)
{
u_long flags;
m_addr_t b;
- SYM_LOCK_DRIVER(flags);
+ spin_lock_irqsave(&sym53c8xx_lock, flags);
b = __vtobus_unlocked(dev_dmat, m);
- SYM_UNLOCK_DRIVER(flags);
+ spin_unlock_irqrestore(&sym53c8xx_lock, flags);
return b;
}
-#endif /* SYM_LINUX_DYNAMIC_DMA_MAPPING */
-
-
/*
* Map/unmap a PCI memory window.
*/
}
#endif
-/*
- * Used to retrieve the host structure when the
- * driver is called from the proc FS.
- */
-static struct Scsi_Host *first_host = NULL;
-
#define scsi_data_direction(cmd) (cmd->sc_data_direction)
/*
/*
* Some type that fit DMA addresses as seen from BUS.
*/
-#ifndef SYM_LINUX_DYNAMIC_DMA_MAPPING
-typedef u_long bus_addr_t;
-#else
typedef dma_addr_t bus_addr_t;
-#endif
/*
* Used by the eh thread to wait for command completion.
*/
struct sym_ucmd { /* Override the SCSI pointer structure */
SYM_QUEHEAD link_cmdq; /* Must stay at offset ZERO */
-#ifdef SYM_LINUX_DYNAMIC_DMA_MAPPING
bus_addr_t data_mapping;
u_char data_mapped;
-#endif
struct sym_eh_wait *eh_wait;
};
/*
* Deal with DMA mapping/unmapping.
*/
-
-#ifndef SYM_LINUX_DYNAMIC_DMA_MAPPING
-
-/* Linux versions prior to pci bus iommu kernel interface */
-
-#define __unmap_scsi_data(pdev, cmd) do {; } while (0)
-#define __map_scsi_single_data(pdev, cmd) (__vtobus(pdev,(cmd)->request_buffer))
-#define __map_scsi_sg_data(pdev, cmd) ((cmd)->use_sg)
-#define __sync_scsi_data(pdev, cmd) do {; } while (0)
-
-#define bus_sg_dma_address(sc) vtobus((sc)->address)
-#define bus_sg_dma_len(sc) ((sc)->length)
-
-#else /* Linux version with pci bus iommu kernel interface */
-
#define bus_unmap_sg(pdev, sgptr, sgcnt, dir) \
pci_unmap_sg(pdev, sgptr, sgcnt, dir)
-
#define bus_unmap_single(pdev, mapping, bufptr, dir) \
pci_unmap_single(pdev, mapping, bufptr, dir)
-
#define bus_map_single(pdev, bufptr, bufsiz, dir) \
pci_map_single(pdev, bufptr, bufsiz, dir)
-
#define bus_map_sg(pdev, sgptr, sgcnt, dir) \
pci_map_sg(pdev, sgptr, sgcnt, dir)
-
#define bus_dma_sync_sg(pdev, sgptr, sgcnt, dir) \
pci_dma_sync_sg(pdev, sgptr, sgcnt, dir)
-
#define bus_dma_sync_single(pdev, mapping, bufsiz, dir) \
pci_dma_sync_single(pdev, mapping, bufsiz, dir)
-
#define bus_sg_dma_address(sc) sg_dma_address(sc)
#define bus_sg_dma_len(sc) sg_dma_len(sc)
}
}
-#endif /* SYM_LINUX_DYNAMIC_DMA_MAPPING */
-
#define unmap_scsi_data(np, cmd) \
__unmap_scsi_data(np->s.device, cmd)
#define map_scsi_single_data(np, cmd) \
copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, "
"revision id 0x%x\n",
np->s.chip_name, np->device_id, np->revision_id);
- copy_info(&info, "On PCI bus %d, device %d, function %d, "
+ copy_info(&info, "At PCI address %s, "
#ifdef __sparc__
"IRQ %s\n",
#else
"IRQ %d\n",
#endif
- np->s.bus, (np->s.device_fn & 0xf8) >> 3, np->s.device_fn & 7,
+ pci_name(np->s.device),
#ifdef __sparc__
__irq_itoa(np->s.irq));
#else
/*
* Ask/tell the system about DMA addressing.
*/
-#ifdef SYM_LINUX_DYNAMIC_DMA_MAPPING
static int sym_setup_bus_dma_mask(hcb_p np)
{
#if SYM_CONF_DMA_ADDRESSING_MODE == 0
sym_name(np));
return -1;
}
-#endif /* SYM_LINUX_DYNAMIC_DMA_MAPPING */
/*
* Host attach and initialisations.
struct sym_fw *fw;
printk(KERN_INFO
- "sym%d: <%s> rev 0x%x on pci bus %d device %d function %d "
+ "sym%d: <%s> rev 0x%x at pci %s "
#ifdef __sparc__
"irq %s\n",
#else
"irq %d\n",
#endif
unit, dev->chip.name, dev->chip.revision_id,
- dev->s.bus, (dev->s.device_fn & 0xf8) >> 3,
- dev->s.device_fn & 7,
+ pci_name(dev->pdev),
#ifdef __sparc__
__irq_itoa(dev->s.irq));
#else
* We keep track in the HCB of all the resources that
* are to be released on error.
*/
-#ifdef SYM_LINUX_DYNAMIC_DMA_MAPPING
np = __sym_calloc_dma(dev->pdev, sizeof(*np), "HCB");
if (np) {
np->s.device = dev->pdev;
}
else
goto attach_failed;
-#else
- np = sym_calloc_dma(sizeof(*np), "HCB");
- if (!np)
- goto attach_failed;
-#endif
host_data->ncb = np;
np->s.host = instance;
np->s.unit = unit;
np->device_id = dev->chip.device_id;
np->revision_id = dev->chip.revision_id;
- np->s.bus = dev->s.bus;
- np->s.device_fn = dev->s.device_fn;
np->features = dev->chip.features;
np->clock_divn = dev->chip.nr_divisor;
np->maxoffs = dev->chip.offset_max;
/*
* Ask/tell the system about DMA addressing.
*/
-#ifdef SYM_LINUX_DYNAMIC_DMA_MAPPING
if (sym_setup_bus_dma_mask(np))
goto attach_failed;
-#endif
/*
* Try to map the controller chip to
np->s.lasttime=0;
sym_timer (np);
- /*
- * Done.
- */
- if (!first_host)
- first_host = instance;
-
/*
* Fill Linux host instance structure
* and return success.
MODULE_PARM(sym53c8xx, "s");
#endif
-static void __init sym53c8xx_print_driver_setup(void)
-{
- printf_info (NAME53C8XX ": setup="
- "mpar:%d,spar:%d,tags:%d,sync:%d,burst:%d,"
- "led:%d,wide:%d,diff:%d,irqm:%d, buschk:%d\n",
- sym_driver_setup.pci_parity,
- sym_driver_setup.scsi_parity,
- sym_driver_setup.max_tag,
- sym_driver_setup.min_sync,
- sym_driver_setup.burst_order,
- sym_driver_setup.scsi_led,
- sym_driver_setup.max_wide,
- sym_driver_setup.scsi_diff,
- sym_driver_setup.irq_mode,
- sym_driver_setup.scsi_bus_check);
- printf_info (NAME53C8XX ": setup="
- "hostid:%d,offs:%d,luns:%d,pcifix:%d,revprob:%d,"
- "verb:%d,debug:0x%x,setlle_delay:%d\n",
- sym_driver_setup.host_id,
- sym_driver_setup.max_offs,
- sym_driver_setup.max_lun,
- sym_driver_setup.pci_fix_up,
- sym_driver_setup.reverse_probe,
- sym_driver_setup.verbose,
- sym_driver_setup.debug,
- sym_driver_setup.settle_delay);
-#ifdef DEBUG_2_0_X
-MDELAY(5000);
-#endif
-};
-
#define OPT_PCI_PARITY 1
#define OPT_SCSI_PARITY 2
#define OPT_MAX_TAG 3
#define OPT_HOST_ID 11
#define OPT_MAX_OFFS 12
#define OPT_MAX_LUN 13
-#define OPT_PCI_FIX_UP 14
-
-#define OPT_REVERSE_PROBE 15
-#define OPT_VERBOSE 16
-#define OPT_DEBUG 17
-#define OPT_SETTLE_DELAY 18
-#define OPT_USE_NVRAM 19
-#define OPT_EXCLUDE 20
-#define OPT_SAFE_SETUP 21
+#define OPT_REVERSE_PROBE 14
+#define OPT_VERBOSE 15
+#define OPT_DEBUG 16
+#define OPT_SETTLE_DELAY 17
+#define OPT_USE_NVRAM 18
+#define OPT_EXCLUDE 19
+#define OPT_SAFE_SETUP 20
static char setup_token[] __initdata =
"mpar:" "spar:"
"wide:" "diff:"
"irqm:" "buschk:"
"hostid:" "offset:"
- "luns:" "pcifix:"
- "revprob:" "verb:"
- "debug:" "settle:"
- "nvram:" "excl:"
- "safe:"
+ "luns:" "revprob:"
+ "verb:" "debug:"
+ "settle:" "nvram:"
+ "excl:" "safe:"
;
#ifdef MODULE
__SIMPLE_OPTION(HOST_ID, host_id)
__SIMPLE_OPTION(MAX_OFFS, max_offs)
__SIMPLE_OPTION(MAX_LUN, max_lun)
- __SIMPLE_OPTION(PCI_FIX_UP, pci_fix_up)
__SIMPLE_OPTION(REVERSE_PROBE, reverse_probe)
__SIMPLE_OPTION(VERBOSE, verbose)
__SIMPLE_OPTION(DEBUG, debug)
static int __init
sym53c8xx_pci_init(struct pci_dev *pdev, sym_device *device)
{
- u_short vendor_id, device_id, command, status_reg;
- u_char cache_line_size;
- u_char suggested_cache_line_size = 0;
- u_char pci_fix_up = SYM_SETUP_PCI_FIX_UP;
+ u_short vendor_id, device_id, status_reg;
u_char revision;
u_int irq;
u_long base, base_2;
u_long base_c, base_2_c, io_port;
int i;
- sym_chip *chip;
+ struct sym_pci_chip *chip;
/* Choose some short name for this device */
sprintf(device->s.inst_name, "sym.%d.%d.%d", pdev->bus->number,
pci_set_master(pdev);
- /*
- * Read additionnal info from the configuration space.
- */
- pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache_line_size);
-
- /*
- * If cache line size is not configured, suggest
- * a value for well known CPUs.
- */
-#if defined(__i386__) && !defined(MODULE)
- if (!cache_line_size && boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) {
- switch(boot_cpu_data.x86) {
- case 4: suggested_cache_line_size = 4; break;
- case 6: if (boot_cpu_data.x86_model > 8) break;
- case 5: suggested_cache_line_size = 8; break;
- }
- }
-#endif /* __i386__ */
-
/*
* Some features are required to be enabled in order to
* work around some chip problems. :) ;)
*/
if (device_id == PCI_DEVICE_ID_NCR_53C896 && revision < 0x4) {
chip->features |= (FE_WRIE | FE_CLSE);
- pci_fix_up |= 3; /* Force appropriate PCI fix-up */
- }
-
-#ifdef SYM_CONF_PCI_FIX_UP
- /*
- * Try to fix up PCI config according to wished features.
- */
- if ((pci_fix_up & 1) && (chip->features & FE_CLSE) &&
- !cache_line_size && suggested_cache_line_size) {
- cache_line_size = suggested_cache_line_size;
- pci_write_config_byte(pdev,
- PCI_CACHE_LINE_SIZE, cache_line_size);
- printf_info("%s: PCI_CACHE_LINE_SIZE set to %d.\n",
- sym_name(device), cache_line_size);
}
- pci_read_config_word(pdev, PCI_COMMAND, &command);
- if ((pci_fix_up & 2) && cache_line_size &&
- (chip->features & FE_WRIE) && !(command & PCI_COMMAND_INVALIDATE)) {
- printf_info("%s: setting PCI_COMMAND_INVALIDATE.\n",
- sym_name(device));
- command |= PCI_COMMAND_INVALIDATE;
- pci_write_config_word(pdev, PCI_COMMAND, command);
+ if (chip->features & FE_WRIE) {
+ if (pci_set_mwi(pdev))
+ return -1;
}
-#endif /* SYM_CONF_PCI_FIX_UP */
/*
* Work around for errant bit in 895A. The 66Mhz
if (chip->features & FE_66MHZ) {
if (!(status_reg & PCI_STATUS_66MHZ))
chip->features &= ~FE_66MHZ;
- }
- else {
+ } else {
if (status_reg & PCI_STATUS_66MHZ) {
status_reg = PCI_STATUS_66MHZ;
pci_write_config_word(pdev, PCI_STATUS, status_reg);
* Initialise device structure with items required by sym_attach.
*/
device->pdev = pdev;
- device->s.bus = pdev->bus->number;
- device->s.device_fn = pdev->devfn;
device->s.base = base;
device->s.base_2 = base_2;
device->s.base_c = base_c;
return 0;
}
-#if 0
-/*
- * Detect all 53c8xx hosts and then attach them.
- *
- * If we are using NVRAM, once all hosts are detected, we need to
- * check any NVRAM for boot order in case detect and boot order
- * differ and attach them using the order in the NVRAM.
- *
- * If no NVRAM is found or data appears invalid attach boards in
- * the order they are detected.
- */
-int __init sym53c8xx_detect(struct scsi_host_template *tpnt)
-{
- struct pci_dev *pcidev;
- int i, j, chips, hosts, count;
- int attach_count = 0;
- sym_device *devtbl, *devp;
- sym_nvram nvram;
-#if SYM_CONF_NVRAM_SUPPORT
- sym_nvram nvram0, *nvp;
-#endif
-
- /*
- * Initialize driver general stuff.
- */
-#ifdef SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT
-#ifdef MODULE
-if (sym53c8xx)
- sym53c8xx_setup(sym53c8xx);
-#endif
-#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
- sym_debug_flags = sym_driver_setup.debug;
-#endif
- if (boot_verbose >= 2)
- sym53c8xx_print_driver_setup();
-#endif /* SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT */
-
- /*
- * Allocate the device table since we donnot want to
- * overflow the kernel stack.
- * 1 x 4K PAGE is enough for more than 40 devices for i386.
- */
- devtbl = sym_calloc(PAGE_SIZE, "DEVTBL");
- if (!devtbl)
- return 0;
-
- /*
- * Detect all NCR PQS/PDS memory controllers.
- */
-#ifdef SYM_CONF_PQS_PDS_SUPPORT
- sym_detect_pqs_pds();
-#endif
-
- /*
- * Detect all 53c8xx hosts.
- * Save the first Symbios NVRAM content if any
- * for the boot order.
- */
- chips = sizeof(sym_chip_ids) / sizeof(sym_chip_ids[0]);
- hosts = PAGE_SIZE / sizeof(*devtbl);
-#if SYM_CONF_NVRAM_SUPPORT
- nvp = (sym_driver_setup.use_nvram & 0x1) ? &nvram0 : 0;
-#endif
- j = 0;
- count = 0;
- pcidev = NULL;
- while (1) {
- char *msg = "";
- if (count >= hosts)
- break;
- if (j >= chips)
- break;
- i = sym_driver_setup.reverse_probe ? chips - 1 - j : j;
- pcidev = pci_find_device(PCI_VENDOR_ID_NCR, sym_chip_ids[i],
- pcidev);
- if (pcidev == NULL) {
- ++j;
- continue;
- }
- /* This one is guaranteed by AC to do nothing :-) */
- if (pci_enable_device(pcidev))
- continue;
- devp = &devtbl[count];
- devp->host_id = SYM_SETUP_HOST_ID;
- if (sym53c8xx_pci_init(pcidev, devp)) {
- continue;
- }
- ++count;
-#if SYM_CONF_NVRAM_SUPPORT
- if (nvp) {
- sym_get_nvram(devp, nvp);
- switch(nvp->type) {
- case SYM_SYMBIOS_NVRAM:
- /*
- * Switch to the other nvram buffer, so that
- * nvram0 will contain the first Symbios
- * format NVRAM content with boot order.
- */
- nvp = &nvram;
- msg = "with Symbios NVRAM";
- break;
- case SYM_TEKRAM_NVRAM:
- msg = "with Tekram NVRAM";
- break;
- }
- }
-#endif
-#ifdef SYM_CONF_PQS_PDS_SUPPORT
- /*
- * Match the BUS number for PQS/PDS devices.
- * Read the SCSI ID from a special register mapped
- * into the configuration space of the individual
- * 875s. This register is set up by the PQS bios
- */
- for(i = 0; i < SYM_CONF_MAX_PQS_BUS && pqs_bus[i] != -1; i++) {
- u_char tmp;
- if (pqs_bus[i] == pcidev->bus->number) {
- pci_read_config_byte(pcidev, 0x84, &tmp);
- devp->pqs_pds = 1;
- devp->host_id = tmp;
- break;
- }
- }
- if (devp->pqs_pds)
- msg = "(NCR PQS/PDS)";
-#endif
- if (boot_verbose)
- printf_info("%s: 53c%s detected %s\n",
- sym_name(devp), devp->chip.name, msg);
- }
-
- /*
- * If we have found a SYMBIOS NVRAM, use first the NVRAM boot
- * sequence as device boot order.
- * check devices in the boot record against devices detected.
- * attach devices if we find a match. boot table records that
- * do not match any detected devices will be ignored.
- * devices that do not match any boot table will not be attached
- * here but will attempt to be attached during the device table
- * rescan.
- */
-#if SYM_CONF_NVRAM_SUPPORT
- if (!nvp || nvram0.type != SYM_SYMBIOS_NVRAM)
- goto next;
- for (i = 0; i < 4; i++) {
- Symbios_host *h = &nvram0.data.Symbios.host[i];
- for (j = 0 ; j < count ; j++) {
- devp = &devtbl[j];
- if (h->device_fn != devp->s.device_fn ||
- h->bus_nr != devp->s.bus ||
- h->device_id != devp->chip.device_id)
- continue;
- if (devp->attach_done)
- continue;
- if (h->flags & SYMBIOS_INIT_SCAN_AT_BOOT) {
- sym_get_nvram(devp, nvp);
- if (!sym_attach (tpnt, attach_count, devp))
- attach_count++;
- }
- else if (!(sym_driver_setup.use_nvram & 0x80))
- printf_info(
- "%s: 53c%s state OFF thus not attached\n",
- sym_name(devp), devp->chip.name);
- else
- continue;
-
- devp->attach_done = 1;
- break;
- }
- }
-next:
-#endif
-
- /*
- * Rescan device list to make sure all boards attached.
- * Devices without boot records will not be attached yet
- * so try to attach them here.
- */
- for (i= 0; i < count; i++) {
- devp = &devtbl[i];
- if (!devp->attach_done) {
- devp->nvram = &nvram;
- nvram.type = 0;
-#if SYM_CONF_NVRAM_SUPPORT
- sym_get_nvram(devp, nvp);
-#endif
- if (!sym_attach (tpnt, attach_count, devp))
- attach_count++;
- }
- }
-
- sym_mfree(devtbl, PAGE_SIZE, "DEVTBL");
-
- return attach_count;
-}
-#endif
-
/*
* Linux release module stuff.
return 1;
}
-#if 0
-int sym53c8xx_release(struct Scsi_Host *host)
-{
- sym_detach(((struct host_data *) host->hostdata)->ncb);
-
- return 0;
-}
-#endif
-
MODULE_LICENSE("Dual BSD/GPL");
/*
static struct scsi_host_template sym2_template = {
.module = THIS_MODULE,
.name = "sym53c8xx",
-#if 0
- .detect = sym53c8xx_detect,
- .release = sym53c8xx_release,
-#endif
.info = sym53c8xx_info,
.queuecommand = sym53c8xx_queue_command,
.slave_configure = sym53c8xx_slave_configure,
sym_dev.host_id = SYM_SETUP_HOST_ID;
if (sym53c8xx_pci_init(pdev, &sym_dev))
return -ENODEV;
- printk(KERN_INFO "%s: 53c%s detected\n", sym_name(&sym_dev), sym_dev.chip.name);
sym_dev.nvram = &nvram;
nvram.type = 0;
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