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scsi: target: Make the virtual LUN 0 device

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Create the device for the virtual LUN 0 using the DUMMY flag. This change
makes it possible to remove some special-casing in the INQUIRY code.

Link: https://lore.kernel.org/r/20210322200938.53300-3-k.shelekhin@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Konstantin Shelekhin <k.shelekhin@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Konstantin Shelekhin 2021-03-22 23:09:38 +03:00 committed by Martin K. Petersen
parent 0aecfa662e
commit 1b5ad814af
2 changed files with 2 additions and 6 deletions
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2
drivers/target/target_core_device.c
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@ -1035,7 +1035,7 @@ int core_dev_setup_virtual_lun0(void)
{
struct se_hba *hba;
struct se_device *dev;
char buf[] = "rd_pages=8,rd_nullio=1";
char buf[] = "rd_pages=8,rd_nullio=1,rd_dummy=1";
int ret;
hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE);

6
drivers/target/target_core_spc.c
View file

@ -701,7 +701,6 @@ static sense_reason_t
spc_emulate_inquiry(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
struct se_portal_group *tpg = cmd->se_lun->lun_tpg;
unsigned char *rbuf;
unsigned char *cdb = cmd->t_task_cdb;
unsigned char *buf;
@ -715,10 +714,7 @@ spc_emulate_inquiry(struct se_cmd *cmd)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
if (dev == rcu_access_pointer(tpg->tpg_virt_lun0->lun_se_dev))
buf[0] = 0x3f; /* Not connected */
else
buf[0] = dev->transport->get_device_type(dev);
buf[0] = dev->transport->get_device_type(dev);
if (!(cdb[1] & 0x1)) {
if (cdb[2]) {