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

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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>
This commit is contained in:
Mark Haverkamp
2006-08-08 08:52:14 -07:00
committed by James Bottomley
parent c8f7b073e0
commit 8c23cd7457
3 changed files with 45 additions and 14 deletions
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29
drivers/scsi/aacraid/rx.c
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@@ -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.
*/
@@ -423,13 +445,6 @@ int aac_rx_init(struct aac_dev *dev)
printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
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.
*/