6708bb27bb
This patch contains the squashed version of forth round series cleanups from Andy and Christoph following the post heavy lifting in the preceeding: 'Eliminate usage of struct se_mem' and 'Make all control CDBs scatter-gather' changes. This also includes a conversion of target core and the v3.0 mainline fabric modules (loopback and tcm_fc) to use pr_debug and the CONFIG_DYNAMIC_DEBUG infrastructure! These have been squashed into this third and final round for v3.1. target: Remove ifdeffed code in t_g_process_write target: Remove direct ramdisk code target: Rename task_sg_num to task_sg_nents target: Remove custom debug macros for pr_debug. Use pr_err(). target: Remove custom debug macros in mainline fabrics target: Set WSNZ=1 in block limits VPD. Abort if WRITE_SAME sectors = 0 target: Remove transport do_se_mem_map callback target: Further simplify transport_free_pages target: Redo task allocation return value handling target: Remove extra parentheses target: change alloc_task call to take *cdb, not *cmd (nab: Fix bogus struct file assignments in fd_do_readv and fd_do_writev) Signed-off-by: Andy Grover <agrover@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
#define TCM_LOOP_VERSION "v2.1-rc1"
|
|
#define TL_WWN_ADDR_LEN 256
|
|
#define TL_TPGS_PER_HBA 32
|
|
/*
|
|
* Defaults for struct scsi_host_template tcm_loop_driver_template
|
|
*
|
|
* We use large can_queue and cmd_per_lun here and let TCM enforce
|
|
* the underlying se_device_t->queue_depth.
|
|
*/
|
|
#define TL_SCSI_CAN_QUEUE 1024
|
|
#define TL_SCSI_CMD_PER_LUN 1024
|
|
#define TL_SCSI_MAX_SECTORS 1024
|
|
#define TL_SCSI_SG_TABLESIZE 256
|
|
/*
|
|
* 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;
|
|
/* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
|
|
struct scsi_cmnd *sc;
|
|
struct list_head *tl_cmd_list;
|
|
/* The TCM I/O descriptor that is accessed via container_of() */
|
|
struct se_cmd tl_se_cmd;
|
|
/* 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 {
|
|
int it_nexus_active;
|
|
/*
|
|
* Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
|
|
*/
|
|
struct scsi_host *sh;
|
|
/*
|
|
* Pointer to TCM session for I_T Nexus
|
|
*/
|
|
struct se_session *se_sess;
|
|
};
|
|
|
|
struct tcm_loop_nacl {
|
|
struct se_node_acl se_node_acl;
|
|
};
|
|
|
|
struct tcm_loop_tpg {
|
|
unsigned short tl_tpgt;
|
|
atomic_t tl_tpg_port_count;
|
|
struct se_portal_group tl_se_tpg;
|
|
struct tcm_loop_hba *tl_hba;
|
|
};
|
|
|
|
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 se_device_s *se_dev_hba_ptr;
|
|
struct tcm_loop_nexus *tl_nexus;
|
|
struct device dev;
|
|
struct Scsi_Host *sh;
|
|
struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
|
|
struct se_wwn tl_hba_wwn;
|
|
};
|