summaryrefslogtreecommitdiffstats
path: root/drivers/scsi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/aacraid/aachba.c52
-rw-r--r--drivers/scsi/aacraid/aacraid.h5
-rw-r--r--drivers/scsi/aacraid/commctrl.c28
-rw-r--r--drivers/scsi/aacraid/comminit.c6
-rw-r--r--drivers/scsi/aacraid/commsup.c72
-rw-r--r--drivers/scsi/aacraid/dpcsup.c36
6 files changed, 154 insertions, 45 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 2a889853a106..7e26ebc26661 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -293,7 +293,10 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag)
status = -EINVAL;
}
}
- aac_fib_complete(fibptr);
+ /* Do not set XferState to zero unless receives a response from F/W */
+ if (status >= 0)
+ aac_fib_complete(fibptr);
+
/* Send a CT_COMMIT_CONFIG to enable discovery of devices */
if (status >= 0) {
if ((aac_commit == 1) || commit_flag) {
@@ -310,13 +313,18 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag)
FsaNormal,
1, 1,
NULL, NULL);
- aac_fib_complete(fibptr);
+ /* Do not set XferState to zero unless
+ * receives a response from F/W */
+ if (status >= 0)
+ aac_fib_complete(fibptr);
} else if (aac_commit == 0) {
printk(KERN_WARNING
"aac_get_config_status: Foreign device configurations are being ignored\n");
}
}
- aac_fib_free(fibptr);
+ /* FIB should be freed only after getting the response from the F/W */
+ if (status != -ERESTARTSYS)
+ aac_fib_free(fibptr);
return status;
}
@@ -355,7 +363,9 @@ int aac_get_containers(struct aac_dev *dev)
maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
aac_fib_complete(fibptr);
}
- aac_fib_free(fibptr);
+ /* FIB should be freed only after getting the response from the F/W */
+ if (status != -ERESTARTSYS)
+ aac_fib_free(fibptr);
if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
@@ -1245,8 +1255,12 @@ int aac_get_adapter_info(struct aac_dev* dev)
NULL);
if (rcode < 0) {
- aac_fib_complete(fibptr);
- aac_fib_free(fibptr);
+ /* FIB should be freed only after
+ * getting the response from the F/W */
+ if (rcode != -ERESTARTSYS) {
+ aac_fib_complete(fibptr);
+ aac_fib_free(fibptr);
+ }
return rcode;
}
memcpy(&dev->adapter_info, info, sizeof(*info));
@@ -1270,6 +1284,12 @@ int aac_get_adapter_info(struct aac_dev* dev)
if (rcode >= 0)
memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
+ if (rcode == -ERESTARTSYS) {
+ fibptr = aac_fib_alloc(dev);
+ if (!fibptr)
+ return -ENOMEM;
+ }
+
}
@@ -1470,9 +1490,11 @@ int aac_get_adapter_info(struct aac_dev* dev)
(dev->scsi_host_ptr->sg_tablesize * 8) + 112;
}
}
-
- aac_fib_complete(fibptr);
- aac_fib_free(fibptr);
+ /* FIB should be freed only after getting the response from the F/W */
+ if (rcode != -ERESTARTSYS) {
+ aac_fib_complete(fibptr);
+ aac_fib_free(fibptr);
+ }
return rcode;
}
@@ -1633,6 +1655,7 @@ static int aac_read(struct scsi_cmnd * scsicmd)
* Alocate and initialize a Fib
*/
if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
+ printk(KERN_WARNING "aac_read: fib allocation failed\n");
return -1;
}
@@ -1712,9 +1735,14 @@ static int aac_write(struct scsi_cmnd * scsicmd)
* Allocate and initialize a Fib then setup a BlockWrite command
*/
if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
- scsicmd->result = DID_ERROR << 16;
- scsicmd->scsi_done(scsicmd);
- return 0;
+ /* FIB temporarily unavailable,not catastrophic failure */
+
+ /* scsicmd->result = DID_ERROR << 16;
+ * scsicmd->scsi_done(scsicmd);
+ * return 0;
+ */
+ printk(KERN_WARNING "aac_write: fib allocation failed\n");
+ return -1;
}
status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 83986ed86556..619c02d9c862 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
*----------------------------------------------------------------------------*/
#ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 2461
+# define AAC_DRIVER_BUILD 24702
# define AAC_DRIVER_BRANCH "-ms"
#endif
#define MAXIMUM_NUM_CONTAINERS 32
@@ -1036,6 +1036,9 @@ struct aac_dev
u8 printf_enabled;
u8 in_reset;
u8 msi;
+ int management_fib_count;
+ spinlock_t manage_lock;
+
};
#define aac_adapter_interrupt(dev) \
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 0391d759dfdb..9c0c91178538 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -153,7 +153,7 @@ cleanup:
fibptr->hw_fib_pa = hw_fib_pa;
fibptr->hw_fib_va = hw_fib;
}
- if (retval != -EINTR)
+ if (retval != -ERESTARTSYS)
aac_fib_free(fibptr);
return retval;
}
@@ -322,7 +322,7 @@ return_fib:
}
if (f.wait) {
if(down_interruptible(&fibctx->wait_sem) < 0) {
- status = -EINTR;
+ status = -ERESTARTSYS;
} else {
/* Lock again and retry */
spin_lock_irqsave(&dev->fib_lock, flags);
@@ -593,10 +593,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
u64 addr;
void* p;
if (upsg->sg[i].count >
- (dev->adapter_info.options &
+ ((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
- 65536) {
+ 65536)) {
rcode = -EINVAL;
goto cleanup;
}
@@ -645,10 +645,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
u64 addr;
void* p;
if (usg->sg[i].count >
- (dev->adapter_info.options &
+ ((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
- 65536) {
+ 65536)) {
rcode = -EINVAL;
goto cleanup;
}
@@ -695,10 +695,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
uintptr_t addr;
void* p;
if (usg->sg[i].count >
- (dev->adapter_info.options &
+ ((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
- 65536) {
+ 65536)) {
rcode = -EINVAL;
goto cleanup;
}
@@ -734,10 +734,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
dma_addr_t addr;
void* p;
if (upsg->sg[i].count >
- (dev->adapter_info.options &
+ ((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
- 65536) {
+ 65536)) {
rcode = -EINVAL;
goto cleanup;
}
@@ -772,8 +772,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
psg->count = cpu_to_le32(sg_indx+1);
status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
}
- if (status == -EINTR) {
- rcode = -EINTR;
+ if (status == -ERESTARTSYS) {
+ rcode = -ERESTARTSYS;
goto cleanup;
}
@@ -810,7 +810,7 @@ cleanup:
for(i=0; i <= sg_indx; i++){
kfree(sg_list[i]);
}
- if (rcode != -EINTR) {
+ if (rcode != -ERESTARTSYS) {
aac_fib_complete(srbfib);
aac_fib_free(srbfib);
}
@@ -848,7 +848,7 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
*/
status = aac_dev_ioctl(dev, cmd, arg);
- if(status != -ENOTTY)
+ if (status != -ENOTTY)
return status;
switch (cmd) {
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 666d5151d628..a7261486ccd4 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -194,7 +194,9 @@ int aac_send_shutdown(struct aac_dev * dev)
if (status >= 0)
aac_fib_complete(fibctx);
- aac_fib_free(fibctx);
+ /* FIB should be freed only after getting the response from the F/W */
+ if (status != -ERESTARTSYS)
+ aac_fib_free(fibctx);
return status;
}
@@ -304,6 +306,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
/*
* Check the preferred comm settings, defaults from template.
*/
+ dev->management_fib_count = 0;
+ spin_lock_init(&dev->manage_lock);
dev->max_fib_size = sizeof(struct hw_fib);
dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
- sizeof(struct aac_fibhdr)
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 956261f25181..94d2954d79ae 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -189,7 +189,14 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
void aac_fib_free(struct fib *fibptr)
{
- unsigned long flags;
+ unsigned long flags, flagsv;
+
+ spin_lock_irqsave(&fibptr->event_lock, flagsv);
+ if (fibptr->done == 2) {
+ spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
+ return;
+ }
+ spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
spin_lock_irqsave(&fibptr->dev->fib_lock, flags);
if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
@@ -390,6 +397,8 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
struct hw_fib * hw_fib = fibptr->hw_fib_va;
unsigned long flags = 0;
unsigned long qflags;
+ unsigned long mflags = 0;
+
if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
return -EBUSY;
@@ -471,9 +480,31 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
if (!dev->queues)
return -EBUSY;
- if(wait)
+ if (wait) {
+
+ spin_lock_irqsave(&dev->manage_lock, mflags);
+ if (dev->management_fib_count >= AAC_NUM_MGT_FIB) {
+ printk(KERN_INFO "No management Fibs Available:%d\n",
+ dev->management_fib_count);
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
+ return -EBUSY;
+ }
+ dev->management_fib_count++;
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
spin_lock_irqsave(&fibptr->event_lock, flags);
- aac_adapter_deliver(fibptr);
+ }
+
+ if (aac_adapter_deliver(fibptr) != 0) {
+ printk(KERN_ERR "aac_fib_send: returned -EBUSY\n");
+ if (wait) {
+ spin_unlock_irqrestore(&fibptr->event_lock, flags);
+ spin_lock_irqsave(&dev->manage_lock, mflags);
+ dev->management_fib_count--;
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
+ }
+ return -EBUSY;
+ }
+
/*
* If the caller wanted us to wait for response wait now.
@@ -516,14 +547,15 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
udelay(5);
}
} else if (down_interruptible(&fibptr->event_wait)) {
- fibptr->done = 2;
- up(&fibptr->event_wait);
+ /* Do nothing ... satisfy
+ * down_interruptible must_check */
}
+
spin_lock_irqsave(&fibptr->event_lock, flags);
- if ((fibptr->done == 0) || (fibptr->done == 2)) {
+ if (fibptr->done == 0) {
fibptr->done = 2; /* Tell interrupt we aborted */
spin_unlock_irqrestore(&fibptr->event_lock, flags);
- return -EINTR;
+ return -ERESTARTSYS;
}
spin_unlock_irqrestore(&fibptr->event_lock, flags);
BUG_ON(fibptr->done == 0);
@@ -689,6 +721,7 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
int aac_fib_complete(struct fib *fibptr)
{
+ unsigned long flags;
struct hw_fib * hw_fib = fibptr->hw_fib_va;
/*
@@ -709,6 +742,13 @@ int aac_fib_complete(struct fib *fibptr)
* command is complete that we had sent to the adapter and this
* cdb could be reused.
*/
+ spin_lock_irqsave(&fibptr->event_lock, flags);
+ if (fibptr->done == 2) {
+ spin_unlock_irqrestore(&fibptr->event_lock, flags);
+ return 0;
+ }
+ spin_unlock_irqrestore(&fibptr->event_lock, flags);
+
if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) &&
(hw_fib->header.XferState & cpu_to_le32(AdapterProcessed)))
{
@@ -1355,7 +1395,10 @@ int aac_reset_adapter(struct aac_dev * aac, int forced)
if (status >= 0)
aac_fib_complete(fibctx);
- aac_fib_free(fibctx);
+ /* FIB should be freed only after getting
+ * the response from the F/W */
+ if (status != -ERESTARTSYS)
+ aac_fib_free(fibctx);
}
}
@@ -1759,6 +1802,7 @@ int aac_command_thread(void *data)
struct fib *fibptr;
if ((fibptr = aac_fib_alloc(dev))) {
+ int status;
__le32 *info;
aac_fib_init(fibptr);
@@ -1769,15 +1813,21 @@ int aac_command_thread(void *data)
*info = cpu_to_le32(now.tv_sec);
- (void)aac_fib_send(SendHostTime,
+ status = aac_fib_send(SendHostTime,
fibptr,
sizeof(*info),
FsaNormal,
1, 1,
NULL,
NULL);
- aac_fib_complete(fibptr);
- aac_fib_free(fibptr);
+ /* Do not set XferState to zero unless
+ * receives a response from F/W */
+ if (status >= 0)
+ aac_fib_complete(fibptr);
+ /* FIB should be freed only after
+ * getting the response from the F/W */
+ if (status != -ERESTARTSYS)
+ aac_fib_free(fibptr);
}
difference = (long)(unsigned)update_interval*HZ;
} else {
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index abc9ef5d1b10..9c7408fe8c7d 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -57,9 +57,9 @@ unsigned int aac_response_normal(struct aac_queue * q)
struct hw_fib * hwfib;
struct fib * fib;
int consumed = 0;
- unsigned long flags;
+ unsigned long flags, mflags;
- spin_lock_irqsave(q->lock, flags);
+ spin_lock_irqsave(q->lock, flags);
/*
* Keep pulling response QEs off the response queue and waking
* up the waiters until there are no more QEs. We then return
@@ -125,12 +125,21 @@ unsigned int aac_response_normal(struct aac_queue * q)
} else {
unsigned long flagv;
spin_lock_irqsave(&fib->event_lock, flagv);
- if (!fib->done)
+ if (!fib->done) {
fib->done = 1;
- up(&fib->event_wait);
+ up(&fib->event_wait);
+ }
spin_unlock_irqrestore(&fib->event_lock, flagv);
+
+ spin_lock_irqsave(&dev->manage_lock, mflags);
+ dev->management_fib_count--;
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
+
FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
if (fib->done == 2) {
+ spin_lock_irqsave(&fib->event_lock, flagv);
+ fib->done = 0;
+ spin_unlock_irqrestore(&fib->event_lock, flagv);
aac_fib_complete(fib);
aac_fib_free(fib);
}
@@ -232,6 +241,7 @@ unsigned int aac_command_normal(struct aac_queue *q)
unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
{
+ unsigned long mflags;
dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index));
if ((index & 0x00000002L)) {
struct hw_fib * hw_fib;
@@ -320,11 +330,25 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
unsigned long flagv;
dprintk((KERN_INFO "event_wait up\n"));
spin_lock_irqsave(&fib->event_lock, flagv);
- if (!fib->done)
+ if (!fib->done) {
fib->done = 1;
- up(&fib->event_wait);
+ up(&fib->event_wait);
+ }
spin_unlock_irqrestore(&fib->event_lock, flagv);
+
+ spin_lock_irqsave(&dev->manage_lock, mflags);
+ dev->management_fib_count--;
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
+
FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
+ if (fib->done == 2) {
+ spin_lock_irqsave(&fib->event_lock, flagv);
+ fib->done = 0;
+ spin_unlock_irqrestore(&fib->event_lock, flagv);
+ aac_fib_complete(fib);
+ aac_fib_free(fib);
+ }
+
}
return 0;
}
OpenPOWER on IntegriCloud