[SCSI] aacraid: Added Sync.mode to support series 7/8/9 controllers
Added Sync. mode to support Series 7/8/9 controller families: This is a
compatibility mode for all these controller families. The Async. (Performance)
mode can be changed in the future. First Async. mode version added for Series
7; Controller parameter aac_sync_mode added
Signed-off-by: Mahesh Rajashekhara <aacraid@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 957595a..2bee515 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -96,6 +96,38 @@
our_interrupt = 1;
/* handle AIF */
aac_intr_normal(dev, 0, 2, 0, NULL);
+ } else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
+ unsigned long sflags;
+ struct list_head *entry;
+ int send_it = 0;
+
+ if (dev->sync_fib) {
+ our_interrupt = 1;
+ if (dev->sync_fib->callback)
+ dev->sync_fib->callback(dev->sync_fib->callback_data,
+ dev->sync_fib);
+ spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
+ if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
+ dev->management_fib_count--;
+ up(&dev->sync_fib->event_wait);
+ }
+ spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
+ spin_lock_irqsave(&dev->sync_lock, sflags);
+ if (!list_empty(&dev->sync_fib_list)) {
+ entry = dev->sync_fib_list.next;
+ dev->sync_fib = list_entry(entry, struct fib, fiblink);
+ list_del(entry);
+ send_it = 1;
+ } else {
+ dev->sync_fib = NULL;
+ }
+ spin_unlock_irqrestore(&dev->sync_lock, sflags);
+ if (send_it) {
+ aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
+ (u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
+ NULL, NULL, NULL, NULL, NULL);
+ }
+ }
}
}
@@ -177,56 +209,63 @@
*/
src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT);
- ok = 0;
- start = jiffies;
+ if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) {
+ ok = 0;
+ start = jiffies;
+
+ /*
+ * Wait up to 5 minutes
+ */
+ while (time_before(jiffies, start+300*HZ)) {
+ udelay(5); /* Delay 5 microseconds to let Mon960 get info. */
+ /*
+ * Mon960 will set doorbell0 bit when it has completed the command.
+ */
+ if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
+ /*
+ * Clear the doorbell.
+ */
+ src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+ ok = 1;
+ break;
+ }
+ /*
+ * Yield the processor in case we are slow
+ */
+ msleep(1);
+ }
+ if (unlikely(ok != 1)) {
+ /*
+ * Restore interrupt mask even though we timed out
+ */
+ aac_adapter_enable_int(dev);
+ return -ETIMEDOUT;
+ }
+ /*
+ * Pull the synch status from Mailbox 0.
+ */
+ if (status)
+ *status = readl(&dev->IndexRegs->Mailbox[0]);
+ if (r1)
+ *r1 = readl(&dev->IndexRegs->Mailbox[1]);
+ if (r2)
+ *r2 = readl(&dev->IndexRegs->Mailbox[2]);
+ if (r3)
+ *r3 = readl(&dev->IndexRegs->Mailbox[3]);
+ if (r4)
+ *r4 = readl(&dev->IndexRegs->Mailbox[4]);
+
+ /*
+ * Clear the synch command doorbell.
+ */
+ src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+ }
/*
- * Wait up to 30 seconds
+ * Restore interrupt mask
*/
- while (time_before(jiffies, start+30*HZ)) {
- /* Delay 5 microseconds to let Mon960 get info. */
- udelay(5);
-
- /* Mon960 will set doorbell0 bit
- * when it has completed the command
- */
- if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
- /* Clear the doorbell */
- src_writel(dev,
- MUnit.ODR_C,
- OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
- ok = 1;
- break;
- }
-
- /* Yield the processor in case we are slow */
- msleep(1);
- }
- if (unlikely(ok != 1)) {
- /* Restore interrupt mask even though we timed out */
- aac_adapter_enable_int(dev);
- return -ETIMEDOUT;
- }
-
- /* Pull the synch status from Mailbox 0 */
- if (status)
- *status = readl(&dev->IndexRegs->Mailbox[0]);
- if (r1)
- *r1 = readl(&dev->IndexRegs->Mailbox[1]);
- if (r2)
- *r2 = readl(&dev->IndexRegs->Mailbox[2]);
- if (r3)
- *r3 = readl(&dev->IndexRegs->Mailbox[3]);
- if (r4)
- *r4 = readl(&dev->IndexRegs->Mailbox[4]);
-
- /* Clear the synch command doorbell */
- src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
-
- /* Restore interrupt mask */
aac_adapter_enable_int(dev);
return 0;
-
}
/**
@@ -386,9 +425,7 @@
{
if (!size) {
iounmap(dev->regs.src.bar0);
- dev->regs.src.bar0 = NULL;
- iounmap(dev->base);
- dev->base = NULL;
+ dev->base = dev->regs.src.bar0 = NULL;
return 0;
}
dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2),
@@ -404,7 +441,27 @@
return -1;
}
dev->IndexRegs = &((struct src_registers __iomem *)
- dev->base)->IndexRegs;
+ dev->base)->u.tupelo.IndexRegs;
+ return 0;
+}
+
+/**
+ * aac_srcv_ioremap
+ * @size: mapping resize request
+ *
+ */
+static int aac_srcv_ioremap(struct aac_dev *dev, u32 size)
+{
+ if (!size) {
+ iounmap(dev->regs.src.bar0);
+ dev->base = dev->regs.src.bar0 = NULL;
+ return 0;
+ }
+ dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base, size);
+ if (dev->base == NULL)
+ return -1;
+ dev->IndexRegs = &((struct src_registers __iomem *)
+ dev->base)->u.denali.IndexRegs;
return 0;
}
@@ -419,7 +476,7 @@
bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
if (bled || (var != 0x00000001))
- bled = -EINVAL;
+ return -EINVAL;
if (dev->supplement_adapter_info.SupportedOptions2 &
AAC_OPTION_DOORBELL_RESET) {
src_writel(dev, MUnit.IDR, reset_mask);
@@ -579,15 +636,149 @@
dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
aac_adapter_enable_int(dev);
- /*
- * Tell the adapter that all is configured, and it can
- * start accepting requests
- */
- aac_src_start_adapter(dev);
+ if (!dev->sync_mode) {
+ /*
+ * Tell the adapter that all is configured, and it can
+ * start accepting requests
+ */
+ aac_src_start_adapter(dev);
+ }
return 0;
error_iounmap:
return -1;
}
+
+/**
+ * aac_srcv_init - initialize an SRCv card
+ * @dev: device to configure
+ *
+ */
+
+int aac_srcv_init(struct aac_dev *dev)
+{
+ unsigned long start;
+ unsigned long status;
+ int restart = 0;
+ int instance = dev->id;
+ const char *name = dev->name;
+
+ dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
+ dev->a_ops.adapter_comm = aac_src_select_comm;
+
+ dev->base_size = AAC_MIN_SRCV_BAR0_SIZE;
+ if (aac_adapter_ioremap(dev, dev->base_size)) {
+ printk(KERN_WARNING "%s: unable to map adapter.\n", name);
+ goto error_iounmap;
+ }
+
+ /* Failure to reset here is an option ... */
+ dev->a_ops.adapter_sync_cmd = src_sync_cmd;
+ dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
+ if ((aac_reset_devices || reset_devices) &&
+ !aac_src_restart_adapter(dev, 0))
+ ++restart;
+ /*
+ * Check to see if the board panic'd while booting.
+ */
+ status = src_readl(dev, MUnit.OMR);
+ if (status & KERNEL_PANIC) {
+ if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
+ goto error_iounmap;
+ ++restart;
+ }
+ /*
+ * Check to see if the board failed any self tests.
+ */
+ status = src_readl(dev, MUnit.OMR);
+ if (status & SELF_TEST_FAILED) {
+ printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
+ goto error_iounmap;
+ }
+ /*
+ * Check to see if the monitor panic'd while booting.
+ */
+ if (status & MONITOR_PANIC) {
+ printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
+ goto error_iounmap;
+ }
+ start = jiffies;
+ /*
+ * Wait for the adapter to be up and running. Wait up to 3 minutes
+ */
+ while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)) {
+ if ((restart &&
+ (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
+ time_after(jiffies, start+HZ*startup_timeout)) {
+ printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
+ dev->name, instance, status);
+ goto error_iounmap;
+ }
+ if (!restart &&
+ ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
+ time_after(jiffies, start + HZ *
+ ((startup_timeout > 60)
+ ? (startup_timeout - 60)
+ : (startup_timeout / 2))))) {
+ if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev))))
+ start = jiffies;
+ ++restart;
+ }
+ msleep(1);
+ }
+ if (restart && aac_commit)
+ aac_commit = 1;
+ /*
+ * Fill in the common function dispatch table.
+ */
+ dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
+ dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+ dev->a_ops.adapter_notify = aac_src_notify_adapter;
+ dev->a_ops.adapter_sync_cmd = src_sync_cmd;
+ dev->a_ops.adapter_check_health = aac_src_check_health;
+ dev->a_ops.adapter_restart = aac_src_restart_adapter;
+
+ /*
+ * First clear out all interrupts. Then enable the one's that we
+ * can handle.
+ */
+ aac_adapter_comm(dev, AAC_COMM_MESSAGE);
+ aac_adapter_disable_int(dev);
+ src_writel(dev, MUnit.ODR_C, 0xffffffff);
+ aac_adapter_enable_int(dev);
+
+ if (aac_init_adapter(dev) == NULL)
+ goto error_iounmap;
+ if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
+ goto error_iounmap;
+ dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
+ if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+ IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
+ if (dev->msi)
+ pci_disable_msi(dev->pdev);
+ printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
+ name, instance);
+ goto error_iounmap;
+ }
+ dev->dbg_base = dev->scsi_host_ptr->base;
+ dev->dbg_base_mapped = dev->base;
+ dev->dbg_size = dev->base_size;
+
+ aac_adapter_enable_int(dev);
+
+ if (!dev->sync_mode) {
+ /*
+ * Tell the adapter that all is configured, and it can
+ * start accepting requests
+ */
+ aac_src_start_adapter(dev);
+ }
+ return 0;
+
+error_iounmap:
+
+ return -1;
+}
+