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Commit c6d66aba authored by Mike Christie's avatar Mike Christie Committed by Nicholas Bellinger
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target: add helper to copy sense to se_cmd buffer 



This adds a helper to copy sense from backend module buffer to
the se_cmd's sense buffer.

Signed-off-by: default avatarMike Christie <mchristi@redhat.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 9fe36984

drivers/target/target_core_transport.c

+18 −0
Original line number Diff line number Diff line
@@ -704,6 +704,24 @@ static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd) 
	return cmd->sense_buffer;

}



void transport_copy_sense_to_cmd(struct se_cmd *cmd, unsigned char *sense)

{

	unsigned char *cmd_sense_buf;

	unsigned long flags;



	spin_lock_irqsave(&cmd->t_state_lock, flags);

	cmd_sense_buf = transport_get_sense_buffer(cmd);

	if (!cmd_sense_buf) {

		spin_unlock_irqrestore(&cmd->t_state_lock, flags);

		return;

	}



	cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE;

	memcpy(cmd_sense_buf, sense, cmd->scsi_sense_length);

	spin_unlock_irqrestore(&cmd->t_state_lock, flags);

}

EXPORT_SYMBOL(transport_copy_sense_to_cmd);



void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)

{

	struct se_device *dev = cmd->se_dev;

include/target/target_core_backend.h

+2 −0
Original line number Diff line number Diff line
@@ -73,6 +73,8 @@ void target_backend_unregister(const struct target_backend_ops *); 
void	target_complete_cmd(struct se_cmd *, u8);

void	target_complete_cmd_with_length(struct se_cmd *, u8, int);



void	transport_copy_sense_to_cmd(struct se_cmd *, unsigned char *);



sense_reason_t	spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);

sense_reason_t	spc_emulate_report_luns(struct se_cmd *cmd);

sense_reason_t	spc_emulate_inquiry_std(struct se_cmd *, unsigned char *);