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authorDamien Le Moal <dlemoal@kernel.org>2023-05-11 03:13:40 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2023-05-22 17:05:19 -0400
commit152e52fb6ff180e97d64585e87fea44c49b8bda8 (patch)
treed5c2365f78257b9b4bb9fba127e972c081f8a83d /include
parenta6cdc35fab0d813d54744abe2af07d6c49c07d6e (diff)
scsi: core: Support Service Action in scsi_report_opcode()
The REPORT_SUPPORTED_OPERATION_CODES command allows checking for support of commands that have the same opcode but different service actions, such as READ 32 and WRITE 32. However, the current implementation of scsi_report_opcode() only allows checking an operation code without a service action differentiation. Add the "sa" argument to scsi_report_opcode() to allow passing a service action. If a non-zero service action is specified, the reporting options field value is set to 3 to have the service action field taken into account by the device. If no service action field is specified (zero), the reporting options field is set to 1 as before. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Link: https://lore.kernel.org/r/20230511011356.227789-8-nks@flawful.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include')
-rw-r--r--include/scsi/scsi_device.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index c146cc807d44..c93c5aaf637e 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -433,8 +433,9 @@ extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
int retries, struct scsi_sense_hdr *sshdr);
extern int scsi_get_vpd_page(struct scsi_device *, u8 page, unsigned char *buf,
int buf_len);
-extern int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer,
- unsigned int len, unsigned char opcode);
+int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer,
+ unsigned int len, unsigned char opcode,
+ unsigned short sa);
extern int scsi_device_set_state(struct scsi_device *sdev,
enum scsi_device_state state);
extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type,