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scsi: aacraid: Prevent E3 lockup when deleting units

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Arrconf management utility at times sends fibs with AdapterProcessed set
in its fibs. This causes the controller to panic and lockup.

Fixed by failing the commands that have AdapterProcessed set in its flag.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Raghava Aditya Renukunta 2017-02-16 12:51:13 -08:00 committed by Martin K. Petersen
parent 16ae9dd35d
commit a0c6143e95
1 changed files with 4 additions and 0 deletions
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4
drivers/scsi/aacraid/commsup.c
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@ -527,6 +527,10 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
return -EBUSY;
if (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))
return -EINVAL;
/*
* There are 5 cases with the wait and response requested flags.
* The only invalid cases are if the caller requests to wait and