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target: Move dev_cit to struct se_subsystem_api 

This patch adds initial support for dev_cit as external config_item_type.

This includes a new struct target_backend_cits to hold the external CITs
within struct se_subsystem_api, and target_core_setup_sub_cits() to be
used by backend drivers ahead of transport_subsystem_register().

It adds a TB_CIT_SETUP() helper following target_core_fabric_configfs.c
to perform the config_item_type assignments.

Also, drop left-over target_core_dev_cit from target_core_configfs.c code
and update comments.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2014-11-27 13:59:20 -08:00
parent 2ed37f6c9b
commit 73112edca9
3 changed files with 34 additions and 9 deletions
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33
drivers/target/target_core_configfs.c
View File

@ -50,6 +50,19 @@
#include "target_core_rd.h"
#include "target_core_xcopy.h"
#define TB_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \
static void target_core_setup_##_name##_cit(struct se_subsystem_api *sa) \
{ \
struct target_backend_cits *tbc = &sa->tb_cits; \
struct config_item_type *cit = &tbc->tb_##_name##_cit; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = _attrs; \
cit->ct_owner = sa->owner; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
extern struct t10_alua_lu_gp *default_lu_gp;
static LIST_HEAD(g_tf_list);
@ -1470,7 +1483,7 @@ static struct config_item_type target_core_dev_pr_cit = {
/* End functions for struct config_item_type target_core_dev_pr_cit */
/* Start functions for struct config_item_type target_core_dev_cit */
/* Start functions for struct config_item_type tb_dev_cit */
static ssize_t target_core_show_dev_info(void *p, char *page)
{
@ -1934,7 +1947,7 @@ static struct target_core_configfs_attribute target_core_attr_dev_lba_map = {
.store = target_core_store_dev_lba_map,
};
static struct configfs_attribute *lio_core_dev_attrs[] = {
static struct configfs_attribute *target_core_dev_attrs[] = {
&target_core_attr_dev_info.attr,
&target_core_attr_dev_control.attr,
&target_core_attr_dev_alias.attr,
@ -1993,13 +2006,9 @@ static struct configfs_item_operations target_core_dev_item_ops = {
.store_attribute = target_core_dev_store,
};
static struct config_item_type target_core_dev_cit = {
.ct_item_ops = &target_core_dev_item_ops,
.ct_attrs = lio_core_dev_attrs,
.ct_owner = THIS_MODULE,
};
TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs);
/* End functions for struct config_item_type target_core_dev_cit */
/* End functions for struct config_item_type tb_dev_cit */
/* Start functions for struct config_item_type target_core_alua_lu_gp_cit */
@ -2815,7 +2824,7 @@ static struct config_group *target_core_make_subdev(
if (!dev_cg->default_groups)
goto out_free_device;
config_group_init_type_name(dev_cg, name, &target_core_dev_cit);
config_group_init_type_name(dev_cg, name, &t->tb_cits.tb_dev_cit);
config_group_init_type_name(&dev->dev_attrib.da_group, "attrib",
&target_core_dev_attrib_cit);
config_group_init_type_name(&dev->dev_pr_group, "pr",
@ -3119,6 +3128,12 @@ static struct config_item_type target_core_cit = {
/* Stop functions for struct config_item_type target_core_hba_cit */
void target_core_setup_sub_cits(struct se_subsystem_api *sa)
{
target_core_setup_dev_cit(sa);
}
EXPORT_SYMBOL(target_core_setup_sub_cits);
static int __init target_core_init_configfs(void)
{
struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL;

1
drivers/target/target_core_hba.c
View File

@ -36,6 +36,7 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
#include "target_core_internal.h"

9
include/target/target_core_backend.h
View File

@ -5,6 +5,10 @@
#define TRANSPORT_PLUGIN_VHBA_PDEV 2
#define TRANSPORT_PLUGIN_VHBA_VDEV 3
struct target_backend_cits {
struct config_item_type tb_dev_cit;
};
struct se_subsystem_api {
struct list_head sub_api_list;
@ -44,6 +48,8 @@ struct se_subsystem_api {
int (*init_prot)(struct se_device *);
int (*format_prot)(struct se_device *);
void (*free_prot)(struct se_device *);
struct target_backend_cits tb_cits;
};
struct sbc_ops {
@ -96,4 +102,7 @@ sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *,
void array_free(void *array, int n);
/* From target_core_configfs.c to setup default backend config_item_types */
void target_core_setup_sub_cits(struct se_subsystem_api *);
#endif /* TARGET_CORE_BACKEND_H */