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Diffstat (limited to 'drivers/target/loopback/tcm_loop.h')
-rw-r--r--drivers/target/loopback/tcm_loop.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
new file mode 100644
index 000000000..437663b39
--- /dev/null
+++ b/drivers/target/loopback/tcm_loop.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/types.h>
+#include <linux/device.h>
+#include <target/target_core_base.h> /* struct se_cmd */
+
+#define TCM_LOOP_VERSION "v2.1-rc2"
+#define TL_WWN_ADDR_LEN 256
+#define TL_TPGS_PER_HBA 32
+
+struct tcm_loop_cmd {
+ /* State of Linux/SCSI CDB+Data descriptor */
+ u32 sc_cmd_state;
+ /* Tagged command queueing */
+ u32 sc_cmd_tag;
+ /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
+ struct scsi_cmnd *sc;
+ /* The TCM I/O descriptor that is accessed via container_of() */
+ struct se_cmd tl_se_cmd;
+ struct completion tmr_done;
+ /* Sense buffer that will be mapped into outgoing status */
+ unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
+};
+
+struct tcm_loop_nexus {
+ /*
+ * Pointer to TCM session for I_T Nexus
+ */
+ struct se_session *se_sess;
+};
+
+#define TCM_TRANSPORT_ONLINE 0
+#define TCM_TRANSPORT_OFFLINE 1
+
+struct tcm_loop_tpg {
+ unsigned short tl_tpgt;
+ unsigned short tl_transport_status;
+ enum target_prot_type tl_fabric_prot_type;
+ atomic_t tl_tpg_port_count;
+ struct se_portal_group tl_se_tpg;
+ struct tcm_loop_hba *tl_hba;
+ struct tcm_loop_nexus *tl_nexus;
+};
+
+struct tcm_loop_hba {
+ u8 tl_proto_id;
+ unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
+ struct se_hba_s *se_hba;
+ struct se_lun *tl_hba_lun;
+ struct se_port *tl_hba_lun_sep;
+ struct device dev;
+ struct Scsi_Host *sh;
+ struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
+ struct se_wwn tl_hba_wwn;
+};