diff options
| author | Webb Scales <webbnh@hp.com> | 2015-01-24 01:43:35 +0300 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2015-02-02 20:57:40 +0300 |
| commit | 281a7fd03ea37c979bbba4d8376595c0288e3252 (patch) | |
| tree | 0394dd2685426d192027fb5b1f0c4dbb5fd6da27 /drivers/scsi/hpsa.h | |
| parent | 03383736348bb73a45f8460afca3c5f5bd1be172 (diff) | |
| download | linux-281a7fd03ea37c979bbba4d8376595c0288e3252.tar.xz | |
hpsa: fix race between abort handler and main i/o path
This means changing the allocator to reference count commands.
The reference count is now the authoritative indicator of whether a
command is allocated or not. The h->cmd_pool_bits bitmap is now
only a heuristic hint to speed up the allocation process, it is no
longer the authoritative record of allocated commands.
Since we changed the command allocator to use reference counting
as the authoritative indicator of whether a command is allocated,
fail_all_outstanding_cmds needs to use the reference count not
h->cmd_pool_bits for this purpose.
Fix hpsa_drain_accel_commands to use the reference count as the
authoritative indicator of whether a command is allocated instead of
the h->cmd_pool_bits bitmap.
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/hpsa.h')
| -rw-r--r-- | drivers/scsi/hpsa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index d0fb854195ee..679e4d2272e0 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -309,6 +309,8 @@ struct offline_device_entry { */ #define SA5_DOORBELL 0x20 #define SA5_REQUEST_PORT_OFFSET 0x40 +#define SA5_REQUEST_PORT64_LO_OFFSET 0xC0 +#define SA5_REQUEST_PORT64_HI_OFFSET 0xC4 #define SA5_REPLY_INTR_MASK_OFFSET 0x34 #define SA5_REPLY_PORT_OFFSET 0x44 #define SA5_INTR_STATUS 0x30 |