From 41ce4c355765a5e0a8e1c8ff8d7257160bbae93d Mon Sep 17 00:00:00 2001 From: Stephen Cameron Date: Thu, 23 Apr 2015 09:31:47 -0500 Subject: 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 Reviewed-by: Kevin Barnett Reviewed-by: Tomas Henzl Reviewed-by: Hannes Reinecke Signed-off-by: Don Brace Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley --- drivers/scsi/hpsa.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/scsi/hpsa.h') 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 { -- cgit