diff options
| author | Stephen Cameron <stephenmcameron@gmail.com> | 2015-04-23 09:31:47 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-05-31 11:20:24 -0700 |
| commit | 41ce4c355765a5e0a8e1c8ff8d7257160bbae93d (patch) | |
| tree | d876204ee2e897dc2a6ba55acdaa6ce0290c7fcc /drivers/scsi/hpsa.h | |
| parent | 6b6c1cd7da65225d61107bbe87495450cc0c5b11 (diff) | |
| download | linux-41ce4c355765a5e0a8e1c8ff8d7257160bbae93d.tar.bz2 | |
hpsa: add masked physical devices into h->dev[] array
Cache the ioaccel handle so that when we need to abort commands sent
down the ioaccel2 path, we can look up the LUN ID in h->dev[] instead of
having to do I/O to the controller.
Add a field to elements in h->dev[] to keep track of how the device is exposed
to the SCSI mid layer: Not at all, without an upper level driver
(no_uld_attach) or normally exposed.
Since masked physical devices are now present in h->dev[] array
it would be perfectly possible to do
echo scsi add-single-device 2 2 0 0 > /proc/scsi/scsi
and bring them online. This was previously not allowed for masked
physical devices.
Ensure that the mapping of physical disks to logical drives gets updated in a
consistent way when a RAID migration occurs and is not touched until updates
to it are complete.
now instead of doing CISS_REPORT_PHYSICAL to get the LUNID for
the physical disk in hpsa_get_pdisk_of_ioaccel2(), just get
it out of h->dev[] where we already have it cached.
do not touch phys_disk[] for ioaccel enabled logical drives during rescan
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Hannes Reinecke <hare@Suse.de>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/hpsa.h')
| -rw-r--r-- | drivers/scsi/hpsa.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 657713050349..58f3315fc6a9 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -54,6 +54,7 @@ struct hpsa_scsi_dev_t { u32 ioaccel_handle; int offload_config; /* I/O accel RAID offload configured */ int offload_enabled; /* I/O accel RAID offload enabled */ + int offload_to_be_enabled; int offload_to_mirror; /* Send next I/O accelerator RAID * offload request to mirror drive */ @@ -68,6 +69,11 @@ struct hpsa_scsi_dev_t { * devices in order to honor physical device queue depth limits. */ struct hpsa_scsi_dev_t *phys_disk[RAID_MAP_MAX_ENTRIES]; +#define HPSA_DO_NOT_EXPOSE 0x0 +#define HPSA_SG_ATTACH 0x1 +#define HPSA_ULD_ATTACH 0x2 +#define HPSA_SCSI_ADD (HPSA_SG_ATTACH | HPSA_ULD_ATTACH) + u8 expose_state; }; struct reply_queue_buffer { |