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[SCSI] ipr: add workaround for MSI interrupts on P7

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This patch adds some additional logic to the interrupt service routine to fix
a potential problem where an MSI interrupt does not get cleared the first time.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Wayne Boyer
2009-10-20 11:09:00 -07:00
committed by James Bottomley
parent 61ec33eb7d
commit 3feeb89d40
2 changed files with 34 additions and 9 deletions
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1
drivers/scsi/ipr.h
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@@ -144,6 +144,7 @@
#define IPR_IOA_MAX_SECTORS 32767
#define IPR_VSET_MAX_SECTORS 512
#define IPR_MAX_CDB_LEN 16
#define IPR_MAX_HRRQ_RETRIES 3
#define IPR_DEFAULT_BUS_WIDTH 16
#define IPR_80MBs_SCSI_RATE ((80 * 10) / (IPR_DEFAULT_BUS_WIDTH / 8))