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| author | Mike Christie <michael.christie@oracle.com> | 2023-04-07 15:05:38 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-04-11 21:55:35 -0400 |
| commit | 0af7b5e2362d3b67334f20e49138d89141dc24d3 (patch) | |
| tree | 0a95e36506583f2024262627154a34dca92d4ceb /include/scsi | |
| parent | 0730b1632b7e803aad81ff19a4fda964a9d97053 (diff) | |
| download | lwn-0af7b5e2362d3b67334f20e49138d89141dc24d3.tar.gz lwn-0af7b5e2362d3b67334f20e49138d89141dc24d3.zip | |
scsi: Add support for block PR read keys/reservation
This adds support in sd.c for the block PR read keys and read reservation
callouts, so upper layers like LIO can get the PR info that's been setup
using the existing pr callouts and return it to initiators.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20230407200551.12660-6-michael.christie@oracle.com
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_common.h | 1 | ||||
| -rw-r--r-- | include/scsi/scsi_proto.h | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/scsi/scsi_common.h b/include/scsi/scsi_common.h index e25291bbbe9b..fb58715fac86 100644 --- a/include/scsi/scsi_common.h +++ b/include/scsi/scsi_common.h @@ -20,6 +20,7 @@ enum scsi_pr_type { }; enum scsi_pr_type block_pr_type_to_scsi(enum pr_type type); +enum pr_type scsi_pr_type_to_block(enum scsi_pr_type type); static inline unsigned scsi_varlen_cdb_length(const void *hdr) diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h index fbe5bdfe4d6e..07d65c1f59db 100644 --- a/include/scsi/scsi_proto.h +++ b/include/scsi/scsi_proto.h @@ -151,6 +151,11 @@ #define ZO_FINISH_ZONE 0x02 #define ZO_OPEN_ZONE 0x03 #define ZO_RESET_WRITE_POINTER 0x04 +/* values for PR in service action */ +#define READ_KEYS 0x00 +#define READ_RESERVATION 0x01 +#define REPORT_CAPABILITES 0x02 +#define READ_FULL_STATUS 0x03 /* values for variable length command */ #define XDREAD_32 0x03 #define XDWRITE_32 0x04 |