From: Stephen M. Cameron <scame...@beardog.cce.hp.com>
This used to be the default, but at some point the firmware guys
changed the default and I failed to notice. Now to get unit
attention notifications, you must twiddle a bit indicating you
want them.
Signed-off-by: Stephen M. Cameron <scame...@beardog.cce.hp.com>
---
drivers/scsi/hpsa.c | 7 ++++---
drivers/scsi/hpsa_cmd.h | 1 +
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 542d4cb..be9ea76 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4386,14 +4386,15 @@ static inline bool hpsa_CISS_signature_present(struct
ctlr_info *h)
static inline void hpsa_set_driver_support_bits(struct ctlr_info *h)
{
-#ifdef CONFIG_X86
- /* Need to enable prefetch in the SCSI core for 6400 in x86 */
u32 driver_support;
+#ifdef CONFIG_X86
+ /* Need to enable prefetch in the SCSI core for 6400 in x86 */
driver_support = readl(&(h->cfgtable->driver_support));
driver_support |= ENABLE_SCSI_PREFETCH;
- writel(driver_support, &(h->cfgtable->driver_support));
#endif
+ driver_support |= ENABLE_UNIT_ATTN;
+ writel(driver_support, &(h->cfgtable->driver_support));
}
/* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 5158709..bfc8c4e 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -358,6 +358,7 @@ struct CfgTable {
u32 HeartBeat;
u32 driver_support;
#define ENABLE_SCSI_PREFETCH 0x100
+#define ENABLE_UNIT_ATTN 0x01
u32 MaxScatterGatherElements;
u32 MaxLogicalUnits;
u32 MaxPhysicalDevices;
--
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