[SCSI] aacraid: Restart adapter on firmware assert (Update 2)

Received from Mark Salyzyn

If the adapter should be in a blinkled (Firmware Assert) state when the
driver loads, we will perform a warm restart of the Adapter Firmware to
see if we can rescue the adapter. Possible causes of a blinkled can
occur on some early release motherboard BIOSes, transitory PCI bus
problems on embedded systems or non-x86 based architectures, transitory
startup failures of early release drives or transitory hardware
failures; some of which can bite the adapter later at runtime. Future
enhancements will include recovery during runtime.

Fixed extra whitespace space issue.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index d0eecd4..05f8098 100644 (file)
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1670,6 +1670,7 @@ extern struct aac_common aac_config;
 #define RCV_TEMP_READINGS              0x00000025
 #define GET_COMM_PREFERRED_SETTINGS    0x00000026
 #define IOP_RESET                      0x00001000
+#define IOP_RESET_ALWAYS               0x00001001
 #define RE_INIT_ADAPTER                        0x000000ee
 
 /*

diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c
index 458ea89..f850c3a 100644 (file)
--- a/drivers/scsi/aacraid/rkt.c
+++ b/drivers/scsi/aacraid/rkt.c
@@ -395,6 +395,25 @@ static int aac_rkt_send(struct fib * fib)
        return 0;
 }
 
+static int aac_rkt_restart_adapter(struct aac_dev *dev)
+{
+       u32 var;
+
+       printk(KERN_ERR "%s%d: adapter kernel panic'd.\n",
+                       dev->name, dev->id);
+
+       if (aac_rkt_check_health(dev) <= 0)
+               return 1;
+       if (rkt_sync_cmd(dev, IOP_RESET, 0, 0, 0, 0, 0, 0,
+                       &var, NULL, NULL, NULL, NULL))
+               return 1;
+       if (var != 0x00000001)
+                return 1;
+       if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+               return 1;
+       return 0;
+}
+
 /**
  *     aac_rkt_init    -       initialize an i960 based AAC card
  *     @dev: device to configure
@@ -417,6 +436,9 @@ int aac_rkt_init(struct aac_dev *dev)
        /*
         *      Check to see if the board panic'd while booting.
         */
+       if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+               if (aac_rkt_restart_adapter(dev))
+                       goto error_iounmap;
        /*
         *      Check to see if the board failed any self tests.
         */
@@ -431,13 +453,6 @@ int aac_rkt_init(struct aac_dev *dev)
                printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
                goto error_iounmap;
        }
-       /*
-        *      Check to see if the board panic'd while booting.
-        */
-       if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) {
-               printk(KERN_ERR "%s%d: adapter kernel panic'd.\n", dev->name, instance);
-               goto error_iounmap;
-       }
        start = jiffies;
        /*
         *      Wait for the adapter to be up and running. Wait up to 3 minutes

diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 035018d..c715c4b 100644 (file)
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -394,6 +394,25 @@ static int aac_rx_send(struct fib * fib)
        return 0;
 }
 
+static int aac_rx_restart_adapter(struct aac_dev *dev)
+{
+       u32 var;
+
+       printk(KERN_ERR "%s%d: adapter kernel panic'd.\n",
+                       dev->name, dev->id);
+
+       if (aac_rx_check_health(dev) <= 0)
+               return 1;
+       if (rx_sync_cmd(dev, IOP_RESET, 0, 0, 0, 0, 0, 0,
+                       &var, NULL, NULL, NULL, NULL))
+               return 1;
+       if (var != 0x00000001)
+                return 1;
+       if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+               return 1;
+       return 0;
+}
+
 /**
  *     aac_rx_init     -       initialize an i960 based AAC card
  *     @dev: device to configure
@@ -416,6 +435,9 @@ int aac_rx_init(struct aac_dev *dev)
        /*
         *      Check to see if the board panic'd while booting.
         */
+       if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+               if (aac_rx_restart_adapter(dev))
+                       goto error_iounmap;
        /*
         *      Check to see if the board failed any self tests.
         */
@@ -424,13 +446,6 @@ int aac_rx_init(struct aac_dev *dev)
                goto error_iounmap;
        }
        /*
-        *      Check to see if the board panic'd while booting.
-        */
-       if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) {
-               printk(KERN_ERR "%s%d: adapter kernel panic.\n", dev->name, instance);
-               goto error_iounmap;
-       }
-       /*
         *      Check to see if the monitor panic'd while booting.
         */
        if (rx_readl(dev, MUnit.OMRx[0]) & MONITOR_PANIC) {