[SCSI] aacraid: add user initiated reset

Add the ability for an application to issue a hardware reset to the
adapter via sysfs. Typical uses include restarting the adapter after it
has been flashed. Bumped revision number for the driver and added a
feature to periodically check the adapter's health (check_interval),
update the adapter's concept of time (update_interval) and block
checking/resetting of the adapter (check_reset).

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index ef11c18d9ba4..b3081b10d0a3 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -169,6 +169,18 @@ int acbsize = -1;
 module_param(acbsize, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 
+int update_interval = 30 * 60;
+module_param(update_interval, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync updates issued to adapter.");
+
+int check_interval = 24 * 60 * 60;
+module_param(check_interval, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health checks.");
+
+int check_reset = 1;
+module_param(check_reset, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the adapter.");
+
 int expose_physicals = -1;
 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays. -1=protect 0=off, 1=on");
@@ -1197,6 +1209,12 @@ int aac_get_adapter_info(struct aac_dev* dev)
                           (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
                           dev->supplement_adapter_info.VpdInfo.Tsid);
                 }
+                if (!check_reset ||
+                  (dev->supplement_adapter_info.SupportedOptions2 &
+                  le32_to_cpu(AAC_OPTION_IGNORE_RESET))) {
+                        printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
+                          dev->name, dev->id);
+                }
         }
 
         dev->nondasd_support = 0;