#include <linux/completion.h>
#include <linux/blkdev.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
#include <asm/semaphore.h>
+#include <asm/delay.h>
#include "aacraid.h"
/* Interrupt Moderation, only interrupt for first two entries */
if (idx != le32_to_cpu(*(q->headers.consumer))) {
if (--idx == 0) {
- if (qid == AdapHighCmdQueue)
- idx = ADAP_HIGH_CMD_ENTRIES;
- else if (qid == AdapNormCmdQueue)
+ if (qid == AdapNormCmdQueue)
idx = ADAP_NORM_CMD_ENTRIES;
- else if (qid == AdapHighRespQueue)
- idx = ADAP_HIGH_RESP_ENTRIES;
- else if (qid == AdapNormRespQueue)
+ else
idx = ADAP_NORM_RESP_ENTRIES;
}
if (idx != le32_to_cpu(*(q->headers.consumer)))
*nonotify = 1;
}
- if (qid == AdapHighCmdQueue) {
- if (*index >= ADAP_HIGH_CMD_ENTRIES)
- *index = 0;
- } else if (qid == AdapNormCmdQueue) {
+ if (qid == AdapNormCmdQueue) {
if (*index >= ADAP_NORM_CMD_ENTRIES)
*index = 0; /* Wrap to front of the Producer Queue. */
- }
- else if (qid == AdapHighRespQueue)
- {
- if (*index >= ADAP_HIGH_RESP_ENTRIES)
- *index = 0;
- }
- else if (qid == AdapNormRespQueue)
- {
+ } else {
if (*index >= ADAP_NORM_RESP_ENTRIES)
*index = 0; /* Wrap to front of the Producer Queue. */
}
- else {
- printk("aacraid: invalid qid\n");
- BUG();
- }
if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { /* Queue is full */
printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
{
struct aac_entry * entry = NULL;
int map = 0;
- struct aac_queue * q = &dev->queues->queue[qid];
-
- spin_lock_irqsave(q->lock, q->SavedIrql);
- if (qid == AdapHighCmdQueue || qid == AdapNormCmdQueue)
- {
+ if (qid == AdapNormCmdQueue) {
/* if no entries wait for some if caller wants to */
while (!aac_get_entry(dev, qid, &entry, index, nonotify))
{
*/
entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
map = 1;
- }
- else if (qid == AdapHighRespQueue || qid == AdapNormRespQueue)
- {
+ } else {
while(!aac_get_entry(dev, qid, &entry, index, nonotify))
{
/* if no entries wait for some if caller wants to */
return 0;
}
-
-/**
- * aac_insert_entry - insert a queue entry
- * @dev: Adapter
- * @index: Index of entry to insert
- * @qid: Queue number
- * @nonotify: Suppress adapter notification
- *
- * Gets the next free QE off the requested priorty adapter command
- * queue and associates the Fib with the QE. The QE represented by
- * index is ready to insert on the queue when this routine returns
- * success.
- */
-
-static int aac_insert_entry(struct aac_dev * dev, u32 index, u32 qid, unsigned long nonotify)
-{
- struct aac_queue * q = &dev->queues->queue[qid];
-
- if(q == NULL)
- BUG();
- *(q->headers.producer) = cpu_to_le32(index + 1);
- spin_unlock_irqrestore(q->lock, q->SavedIrql);
-
- if (qid == AdapHighCmdQueue ||
- qid == AdapNormCmdQueue ||
- qid == AdapHighRespQueue ||
- qid == AdapNormRespQueue)
- {
- if (!nonotify)
- aac_adapter_notify(dev, qid);
- }
- else
- printk("Suprise insert!\n");
- return 0;
-}
-
/*
* Define the highest level of host to adapter communication routines.
* These routines will support host to adapter FS commuication. These
int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority, int wait, int reply, fib_callback callback, void * callback_data)
{
u32 index;
- u32 qid;
struct aac_dev * dev = fibptr->dev;
unsigned long nointr = 0;
struct hw_fib * hw_fib = fibptr->hw_fib;
struct aac_queue * q;
unsigned long flags = 0;
+ unsigned long qflags;
+
if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
return -EBUSY;
/*
* Get a queue entry connect the FIB to it and send an notify
* the adapter a command is ready.
*/
- if (priority == FsaHigh) {
- hw_fib->header.XferState |= cpu_to_le32(HighPriority);
- qid = AdapHighCmdQueue;
- } else {
- hw_fib->header.XferState |= cpu_to_le32(NormalPriority);
- qid = AdapNormCmdQueue;
- }
- q = &dev->queues->queue[qid];
+ hw_fib->header.XferState |= cpu_to_le32(NormalPriority);
- if(wait)
- spin_lock_irqsave(&fibptr->event_lock, flags);
- if(aac_queue_get( dev, &index, qid, hw_fib, 1, fibptr, &nointr)<0)
- return -EWOULDBLOCK;
- dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index));
- dprintk((KERN_DEBUG "Fib contents:.\n"));
- dprintk((KERN_DEBUG " Command = %d.\n", hw_fib->header.Command));
- dprintk((KERN_DEBUG " XferState = %x.\n", hw_fib->header.XferState));
- dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib));
- dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa));
- dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr));
/*
* Fill in the Callback and CallbackContext if we are not
* going to wait.
fibptr->callback = callback;
fibptr->callback_data = callback_data;
}
- FIB_COUNTER_INCREMENT(aac_config.FibsSent);
- list_add_tail(&fibptr->queue, &q->pendingq);
- q->numpending++;
fibptr->done = 0;
fibptr->flags = 0;
- if(aac_insert_entry(dev, index, qid, (nointr & aac_config.irq_mod)) < 0)
- return -EWOULDBLOCK;
+ FIB_COUNTER_INCREMENT(aac_config.FibsSent);
+
+ dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index));
+ dprintk((KERN_DEBUG "Fib contents:.\n"));
+ dprintk((KERN_DEBUG " Command = %d.\n", hw_fib->header.Command));
+ dprintk((KERN_DEBUG " XferState = %x.\n", hw_fib->header.XferState));
+ dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib));
+ dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa));
+ dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr));
+
+ q = &dev->queues->queue[AdapNormCmdQueue];
+
+ if(wait)
+ spin_lock_irqsave(&fibptr->event_lock, flags);
+ spin_lock_irqsave(q->lock, qflags);
+ aac_queue_get( dev, &index, AdapNormCmdQueue, hw_fib, 1, fibptr, &nointr);
+
+ list_add_tail(&fibptr->queue, &q->pendingq);
+ q->numpending++;
+ *(q->headers.producer) = cpu_to_le32(index + 1);
+ spin_unlock_irqrestore(q->lock, qflags);
+ if (!(nointr & aac_config.irq_mod))
+ aac_adapter_notify(dev, AdapNormCmdQueue);
/*
* If the caller wanted us to wait for response wait now.
*/
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
- down(&fibptr->event_wait);
+ /* Only set for first known interruptable command */
+ if (wait < 0) {
+ /*
+ * *VERY* Dangerous to time out a command, the
+ * assumption is made that we have no hope of
+ * functioning because an interrupt routing or other
+ * hardware failure has occurred.
+ */
+ unsigned long count = 36000000L; /* 3 minutes */
+ unsigned long qflags;
+ while (down_trylock(&fibptr->event_wait)) {
+ if (--count == 0) {
+ spin_lock_irqsave(q->lock, qflags);
+ q->numpending--;
+ list_del(&fibptr->queue);
+ spin_unlock_irqrestore(q->lock, qflags);
+ if (wait == -1) {
+ printk(KERN_ERR "aacraid: fib_send: first asynchronous command timed out.\n"
+ "Usually a result of a PCI interrupt routing problem;\n"
+ "update mother board BIOS or consider utilizing one of\n"
+ "the SAFE mode kernel options (acpi, apic etc)\n");
+ }
+ return -ETIMEDOUT;
+ }
+ udelay(5);
+ }
+ } else
+ down(&fibptr->event_wait);
if(fibptr->done == 0)
BUG();
case HostNormCmdQueue:
notify = HostNormCmdNotFull;
break;
- case HostHighCmdQueue:
- notify = HostHighCmdNotFull;
- break;
case HostNormRespQueue:
notify = HostNormRespNotFull;
break;
- case HostHighRespQueue:
- notify = HostHighRespNotFull;
- break;
default:
BUG();
return;
{
struct hw_fib * hw_fib = fibptr->hw_fib;
struct aac_dev * dev = fibptr->dev;
+ struct aac_queue * q;
unsigned long nointr = 0;
- if (hw_fib->header.XferState == 0)
+ unsigned long qflags;
+
+ if (hw_fib->header.XferState == 0) {
return 0;
+ }
/*
* If we plan to do anything check the structure type first.
*/
* send the completed cdb to the adapter.
*/
if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) {
+ u32 index;
hw_fib->header.XferState |= cpu_to_le32(HostProcessed);
- if (hw_fib->header.XferState & cpu_to_le32(HighPriority)) {
- u32 index;
- if (size)
- {
- size += sizeof(struct aac_fibhdr);
- if (size > le16_to_cpu(hw_fib->header.SenderSize))
- return -EMSGSIZE;
- hw_fib->header.Size = cpu_to_le16(size);
- }
- if(aac_queue_get(dev, &index, AdapHighRespQueue, hw_fib, 1, NULL, &nointr) < 0) {
- return -EWOULDBLOCK;
- }
- if (aac_insert_entry(dev, index, AdapHighRespQueue, (nointr & (int)aac_config.irq_mod)) != 0) {
- }
- } else if (hw_fib->header.XferState &
- cpu_to_le32(NormalPriority)) {
- u32 index;
-
- if (size) {
- size += sizeof(struct aac_fibhdr);
- if (size > le16_to_cpu(hw_fib->header.SenderSize))
- return -EMSGSIZE;
- hw_fib->header.Size = cpu_to_le16(size);
- }
- if (aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr) < 0)
- return -EWOULDBLOCK;
- if (aac_insert_entry(dev, index, AdapNormRespQueue, (nointr & (int)aac_config.irq_mod)) != 0)
- {
- }
+ if (size) {
+ size += sizeof(struct aac_fibhdr);
+ if (size > le16_to_cpu(hw_fib->header.SenderSize))
+ return -EMSGSIZE;
+ hw_fib->header.Size = cpu_to_le16(size);
}
+ q = &dev->queues->queue[AdapNormRespQueue];
+ spin_lock_irqsave(q->lock, qflags);
+ aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr);
+ *(q->headers.producer) = cpu_to_le32(index + 1);
+ spin_unlock_irqrestore(q->lock, qflags);
+ if (!(nointr & (int)aac_config.irq_mod))
+ aac_adapter_notify(dev, AdapNormRespQueue);
}
else
{
memset(cp, 0, 256);
}
+
+/**
+ * aac_handle_aif - Handle a message from the firmware
+ * @dev: Which adapter this fib is from
+ * @fibptr: Pointer to fibptr from adapter
+ *
+ * This routine handles a driver notify fib from the adapter and
+ * dispatches it to the appropriate routine for handling.
+ */
+
+static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
+{
+ struct hw_fib * hw_fib = fibptr->hw_fib;
+ struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data;
+ int busy;
+ u32 container;
+ struct scsi_device *device;
+ enum {
+ NOTHING,
+ DELETE,
+ ADD,
+ CHANGE
+ } device_config_needed;
+
+ /* Sniff for container changes */
+
+ if (!dev)
+ return;
+ container = (u32)-1;
+
+ /*
+ * We have set this up to try and minimize the number of
+ * re-configures that take place. As a result of this when
+ * certain AIF's come in we will set a flag waiting for another
+ * type of AIF before setting the re-config flag.
+ */
+ switch (le32_to_cpu(aifcmd->command)) {
+ case AifCmdDriverNotify:
+ switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) {
+ /*
+ * Morph or Expand complete
+ */
+ case AifDenMorphComplete:
+ case AifDenVolumeExtendComplete:
+ container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+ if (container >= dev->maximum_num_containers)
+ break;
+
+ /*
+ * Find the Scsi_Device associated with the SCSI
+ * address. Make sure we have the right array, and if
+ * so set the flag to initiate a new re-config once we
+ * see an AifEnConfigChange AIF come through.
+ */
+
+ if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) {
+ device = scsi_device_lookup(dev->scsi_host_ptr,
+ CONTAINER_TO_CHANNEL(container),
+ CONTAINER_TO_ID(container),
+ CONTAINER_TO_LUN(container));
+ if (device) {
+ dev->fsa_dev[container].config_needed = CHANGE;
+ dev->fsa_dev[container].config_waiting_on = AifEnConfigChange;
+ scsi_device_put(device);
+ }
+ }
+ }
+
+ /*
+ * If we are waiting on something and this happens to be
+ * that thing then set the re-configure flag.
+ */
+ if (container != (u32)-1) {
+ if (container >= dev->maximum_num_containers)
+ break;
+ if (dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data))
+ dev->fsa_dev[container].config_waiting_on = 0;
+ } else for (container = 0;
+ container < dev->maximum_num_containers; ++container) {
+ if (dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data))
+ dev->fsa_dev[container].config_waiting_on = 0;
+ }
+ break;
+
+ case AifCmdEventNotify:
+ switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) {
+ /*
+ * Add an Array.
+ */
+ case AifEnAddContainer:
+ container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+ if (container >= dev->maximum_num_containers)
+ break;
+ dev->fsa_dev[container].config_needed = ADD;
+ dev->fsa_dev[container].config_waiting_on =
+ AifEnConfigChange;
+ break;
+
+ /*
+ * Delete an Array.
+ */
+ case AifEnDeleteContainer:
+ container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+ if (container >= dev->maximum_num_containers)
+ break;
+ dev->fsa_dev[container].config_needed = DELETE;
+ dev->fsa_dev[container].config_waiting_on =
+ AifEnConfigChange;
+ break;
+
+ /*
+ * Container change detected. If we currently are not
+ * waiting on something else, setup to wait on a Config Change.
+ */
+ case AifEnContainerChange:
+ container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+ if (container >= dev->maximum_num_containers)
+ break;
+ if (dev->fsa_dev[container].config_waiting_on)
+ break;
+ dev->fsa_dev[container].config_needed = CHANGE;
+ dev->fsa_dev[container].config_waiting_on =
+ AifEnConfigChange;
+ break;
+
+ case AifEnConfigChange:
+ break;
+
+ }
+
+ /*
+ * If we are waiting on something and this happens to be
+ * that thing then set the re-configure flag.
+ */
+ if (container != (u32)-1) {
+ if (container >= dev->maximum_num_containers)
+ break;
+ if (dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data))
+ dev->fsa_dev[container].config_waiting_on = 0;
+ } else for (container = 0;
+ container < dev->maximum_num_containers; ++container) {
+ if (dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data))
+ dev->fsa_dev[container].config_waiting_on = 0;
+ }
+ break;
+
+ case AifCmdJobProgress:
+ /*
+ * These are job progress AIF's. When a Clear is being
+ * done on a container it is initially created then hidden from
+ * the OS. When the clear completes we don't get a config
+ * change so we monitor the job status complete on a clear then
+ * wait for a container change.
+ */
+
+ if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
+ && ((((u32 *)aifcmd->data)[6] == ((u32 *)aifcmd->data)[5])
+ || (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess)))) {
+ for (container = 0;
+ container < dev->maximum_num_containers;
+ ++container) {
+ /*
+ * Stomp on all config sequencing for all
+ * containers?
+ */
+ dev->fsa_dev[container].config_waiting_on =
+ AifEnContainerChange;
+ dev->fsa_dev[container].config_needed = ADD;
+ }
+ }
+ if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
+ && (((u32 *)aifcmd->data)[6] == 0)
+ && (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning))) {
+ for (container = 0;
+ container < dev->maximum_num_containers;
+ ++container) {
+ /*
+ * Stomp on all config sequencing for all
+ * containers?
+ */
+ dev->fsa_dev[container].config_waiting_on =
+ AifEnContainerChange;
+ dev->fsa_dev[container].config_needed = DELETE;
+ }
+ }
+ break;
+ }
+
+ device_config_needed = NOTHING;
+ for (container = 0; container < dev->maximum_num_containers;
+ ++container) {
+ if ((dev->fsa_dev[container].config_waiting_on == 0)
+ && (dev->fsa_dev[container].config_needed != NOTHING)) {
+ device_config_needed =
+ dev->fsa_dev[container].config_needed;
+ dev->fsa_dev[container].config_needed = NOTHING;
+ break;
+ }
+ }
+ if (device_config_needed == NOTHING)
+ return;
+
+ /*
+ * If we decided that a re-configuration needs to be done,
+ * schedule it here on the way out the door, please close the door
+ * behind you.
+ */
+
+ busy = 0;
+
+
+ /*
+ * Find the Scsi_Device associated with the SCSI address,
+ * and mark it as changed, invalidating the cache. This deals
+ * with changes to existing device IDs.
+ */
+
+ if (!dev || !dev->scsi_host_ptr)
+ return;
+ /*
+ * force reload of disk info via probe_container
+ */
+ if ((device_config_needed == CHANGE)
+ && (dev->fsa_dev[container].valid == 1))
+ dev->fsa_dev[container].valid = 2;
+ if ((device_config_needed == CHANGE) ||
+ (device_config_needed == ADD))
+ probe_container(dev, container);
+ device = scsi_device_lookup(dev->scsi_host_ptr,
+ CONTAINER_TO_CHANNEL(container),
+ CONTAINER_TO_ID(container),
+ CONTAINER_TO_LUN(container));
+ if (device) {
+ switch (device_config_needed) {
+ case DELETE:
+ scsi_remove_device(device);
+ break;
+ case CHANGE:
+ if (!dev->fsa_dev[container].valid) {
+ scsi_remove_device(device);
+ break;
+ }
+ scsi_rescan_device(&device->sdev_gendev);
+
+ default:
+ break;
+ }
+ scsi_device_put(device);
+ }
+ if (device_config_needed == ADD) {
+ scsi_add_device(dev->scsi_host_ptr,
+ CONTAINER_TO_CHANNEL(container),
+ CONTAINER_TO_ID(container),
+ CONTAINER_TO_LUN(container));
+ }
+
+}
+
/**
* aac_command_thread - command processing thread
* @dev: Adapter to monitor
aifcmd = (struct aac_aifcmd *) hw_fib->data;
if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) {
/* Handle Driver Notify Events */
+ aac_handle_aif(dev, fib);
*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
fib_adapter_complete(fib, (u16)sizeof(u32));
} else {
unsigned num;
struct hw_fib ** hw_fib_pool, ** hw_fib_p;
struct fib ** fib_pool, ** fib_p;
-
+
+ /* Sniff events */
+ if ((aifcmd->command ==
+ cpu_to_le32(AifCmdEventNotify)) ||
+ (aifcmd->command ==
+ cpu_to_le32(AifCmdJobProgress))) {
+ aac_handle_aif(dev, fib);
+ }
+
time_now = jiffies/HZ;
/*
projects / powerpc.git / blobdiff