0fd97ccf45
Simplify the code a lot by killing the superflous struct se_subsystem_dev. Instead se_device is allocated early on by the backend driver, which allocates it as part of its own per-device structure, borrowing the scheme that is for example used for inode allocation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
#define TCM_LOOP_VERSION "v2.1-rc2"
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#define TL_WWN_ADDR_LEN 256
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#define TL_TPGS_PER_HBA 32
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/*
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* Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
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*/
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#define TL_SCSI_MAX_CMD_LEN 32
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struct tcm_loop_cmd {
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/* State of Linux/SCSI CDB+Data descriptor */
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u32 sc_cmd_state;
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/* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
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struct scsi_cmnd *sc;
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/* The TCM I/O descriptor that is accessed via container_of() */
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struct se_cmd tl_se_cmd;
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struct work_struct work;
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/* Sense buffer that will be mapped into outgoing status */
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unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
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};
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struct tcm_loop_tmr {
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atomic_t tmr_complete;
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wait_queue_head_t tl_tmr_wait;
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};
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struct tcm_loop_nexus {
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int it_nexus_active;
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/*
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* Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
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*/
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struct scsi_host *sh;
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/*
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* Pointer to TCM session for I_T Nexus
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*/
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struct se_session *se_sess;
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};
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struct tcm_loop_nacl {
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struct se_node_acl se_node_acl;
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};
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struct tcm_loop_tpg {
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unsigned short tl_tpgt;
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atomic_t tl_tpg_port_count;
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struct se_portal_group tl_se_tpg;
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struct tcm_loop_hba *tl_hba;
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};
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struct tcm_loop_hba {
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u8 tl_proto_id;
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unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
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struct se_hba_s *se_hba;
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struct se_lun *tl_hba_lun;
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struct se_port *tl_hba_lun_sep;
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struct tcm_loop_nexus *tl_nexus;
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struct device dev;
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struct Scsi_Host *sh;
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struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
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struct se_wwn tl_hba_wwn;
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};
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