From 8c23cd7457151fc8ace79ec700a8aeaa9fc5b3d9 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Tue, 8 Aug 2006 08:52:14 -0700 Subject: [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 Signed-off-by: James Bottomley --- drivers/scsi/aacraid/rx.c | 29 ++++++++++++++++++++++------- 1 file changed, 22 insertions(+), 7 deletions(-) (limited to 'drivers/scsi/aacraid/rx.c') diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index 035018db69b1..c715c4b2442d 100644 --- 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. */ @@ -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. */ -- cgit v1.2.3-58-ga151