linux/drivers/target/loopback/tcm_loop.h
Hannes Reinecke 506787a2c7 tcm_loop: Fix wrong I_T nexus association
tcm_loop has the I_T nexus associated with the HBA. This causes
commands to become misdirected if the HBA has more than one
target portal group; any command is then being sent to the
first target portal group instead of the correct one.

The nexus needs to be associated with the target portal group
instead.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: <stable@vger.kernel.org> # 3.0+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-12-01 21:36:21 -08:00

63 lines
1.5 KiB
C

#define TCM_LOOP_VERSION "v2.1-rc2"
#define TL_WWN_ADDR_LEN 256
#define TL_TPGS_PER_HBA 32
/*
* Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
*/
#define TL_SCSI_MAX_CMD_LEN 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 work_struct work;
/* Sense buffer that will be mapped into outgoing status */
unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
};
struct tcm_loop_tmr {
atomic_t tmr_complete;
wait_queue_head_t tl_tmr_wait;
};
struct tcm_loop_nexus {
/*
* Pointer to TCM session for I_T Nexus
*/
struct se_session *se_sess;
};
struct tcm_loop_nacl {
struct se_node_acl se_node_acl;
};
#define TCM_TRANSPORT_ONLINE 0
#define TCM_TRANSPORT_OFFLINE 1
struct tcm_loop_tpg {
unsigned short tl_tpgt;
unsigned short tl_transport_status;
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;
};