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author | Bart Van Assche <bart.vanassche@sandisk.com> | 2015-05-18 11:27:14 (GMT) |
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committer | Doug Ledford <dledford@redhat.com> | 2015-05-18 17:35:56 (GMT) |
commit | 985aa49556a576416d3f960f8fc1c6513863e33e (patch) | |
tree | a634502c13bc4ce98c7e6f78774ebf2d5c5b624a /drivers/infiniband/ulp/srp/ib_srp.h | |
parent | bbac5ccff43cdcb5fc9346669ec67ea47fca3de0 (diff) | |
download | linux-985aa49556a576416d3f960f8fc1c6513863e33e.tar.xz |
IB/srp: Add 64-bit LUN support
The SCSI standard defines 64-bit values for LUNs. Large arrays
employing large or hierarchical LUN numbers become more and more
common. So update the SRP initiator to use 64-bit LUN numbers.
See also Hannes Reinecke, commit 9cb78c16f5da ("scsi: use 64-bit LUNs"),
June 2014.
The largest LUN number that has been tested is 0xd2003fff00000000.
Checked the following structure sizes with gdb:
* sizeof(struct srp_cmd) = 48
* sizeof(struct srp_tsk_mgmt) = 48
* sizeof(struct srp_aer_req) = 36
The ibmvscsi changes have been compile tested only (on a PPC system).
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.h')
-rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index e690847..17ee3f8 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -54,7 +54,6 @@ enum { SRP_DLID_REDIRECT = 2, SRP_STALE_CONN = 3, - SRP_MAX_LUN = 512, SRP_DEF_SG_TABLESIZE = 12, SRP_DEFAULT_QUEUE_SIZE = 1 << 6, |