[SCSI] aacraid: Add timeout for events
Received from Mark Salyzyn
Plug and play actions resulting from event sequences shall time out if
they take longer than 30 seconds to complete.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index c7f80ec..bed4e2d 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -784,6 +784,7 @@
* dispatches it to the appropriate routine for handling.
*/
+#define AIF_SNIFF_TIMEOUT (30*HZ)
static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
{
struct hw_fib * hw_fib = fibptr->hw_fib;
@@ -837,6 +838,7 @@
if (device) {
dev->fsa_dev[container].config_needed = CHANGE;
dev->fsa_dev[container].config_waiting_on = AifEnConfigChange;
+ dev->fsa_dev[container].config_waiting_stamp = jiffies;
scsi_device_put(device);
}
}
@@ -849,13 +851,15 @@
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))
+ if ((dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data)) &&
+ time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
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))
+ if ((dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data)) &&
+ time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
dev->fsa_dev[container].config_waiting_on = 0;
}
break;
@@ -872,6 +876,7 @@
dev->fsa_dev[container].config_needed = ADD;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
+ dev->fsa_dev[container].config_waiting_stamp = jiffies;
break;
/*
@@ -884,6 +889,7 @@
dev->fsa_dev[container].config_needed = DELETE;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
+ dev->fsa_dev[container].config_waiting_stamp = jiffies;
break;
/*
@@ -894,11 +900,13 @@
container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
- if (dev->fsa_dev[container].config_waiting_on)
+ if (dev->fsa_dev[container].config_waiting_on &&
+ time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
break;
dev->fsa_dev[container].config_needed = CHANGE;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
+ dev->fsa_dev[container].config_waiting_stamp = jiffies;
break;
case AifEnConfigChange:
@@ -913,13 +921,15 @@
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))
+ if ((dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data)) &&
+ time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
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))
+ if ((dev->fsa_dev[container].config_waiting_on ==
+ le32_to_cpu(*(u32 *)aifcmd->data)) &&
+ time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
dev->fsa_dev[container].config_waiting_on = 0;
}
break;
@@ -946,6 +956,8 @@
dev->fsa_dev[container].config_waiting_on =
AifEnContainerChange;
dev->fsa_dev[container].config_needed = ADD;
+ dev->fsa_dev[container].config_waiting_stamp =
+ jiffies;
}
}
if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
@@ -961,6 +973,8 @@
dev->fsa_dev[container].config_waiting_on =
AifEnContainerChange;
dev->fsa_dev[container].config_needed = DELETE;
+ dev->fsa_dev[container].config_waiting_stamp =
+ jiffies;
}
}
break;
@@ -969,8 +983,9 @@
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)) {
+ if ((dev->fsa_dev[container].config_waiting_on == 0) &&
+ (dev->fsa_dev[container].config_needed != NOTHING) &&
+ time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) {
device_config_needed =
dev->fsa_dev[container].config_needed;
dev->fsa_dev[container].config_needed = NOTHING;