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iscsi-target: Expose default_erl as TPG attribute

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This patch exposes default_erl as a TPG attribute so that it may be
set TPG wide in demo-mode, but still allow the existing NodeACL
attribute to be overridden on a per initiator basis.

Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2013-11-20 11:57:18 -08:00
parent b0a382c58e
commit d1fa7a1d50
6 changed files with 36 additions and 7 deletions
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11
drivers/target/iscsi/iscsi_target_configfs.c
View File

@ -1046,6 +1046,11 @@ TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
*/
DEF_TPG_ATTRIB(demo_mode_discovery);
TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
/*
* Define iscsi_tpg_attrib_s_default_erl
*/
DEF_TPG_ATTRIB(default_erl);
TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
&iscsi_tpg_attrib_authentication.attr,
@ -1057,6 +1062,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
&iscsi_tpg_attrib_demo_mode_write_protect.attr,
&iscsi_tpg_attrib_prod_mode_write_protect.attr,
&iscsi_tpg_attrib_demo_mode_discovery.attr,
&iscsi_tpg_attrib_default_erl.attr,
NULL,
};
@ -1919,9 +1925,12 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
{
struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
se_node_acl);
struct se_portal_group *se_tpg = se_acl->se_tpg;
struct iscsi_portal_group *tpg = container_of(se_tpg,
struct iscsi_portal_group, tpg_se_tpg);
acl->node_attrib.nacl = acl;
iscsit_set_default_node_attribues(acl);
iscsit_set_default_node_attribues(acl, tpg);
}
static int lio_check_stop_free(struct se_cmd *se_cmd)

5
drivers/target/iscsi/iscsi_target_core.h
View File

@ -37,9 +37,6 @@
#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
#define NA_RANDOM_DATAIN_SEQ_OFFSETS 0
#define NA_RANDOM_R2T_OFFSETS 0
#define NA_DEFAULT_ERL 0
#define NA_DEFAULT_ERL_MAX 2
#define NA_DEFAULT_ERL_MIN 0
/* struct iscsi_tpg_attrib sanity values */
#define TA_AUTHENTICATION 1
@ -59,6 +56,7 @@
/* Disabled by default in production mode w/ explict ACLs */
#define TA_PROD_MODE_WRITE_PROTECT 0
#define TA_DEMO_MODE_DISCOVERY 1
#define TA_DEFAULT_ERL 0
#define TA_CACHE_CORE_NPS 0
@ -766,6 +764,7 @@ struct iscsi_tpg_attrib {
u32 demo_mode_write_protect;
u32 prod_mode_write_protect;
u32 demo_mode_discovery;
u32 default_erl;
struct iscsi_portal_group *tpg;
};

5
drivers/target/iscsi/iscsi_target_nodeattrib.c
View File

@ -33,7 +33,8 @@ static inline char *iscsit_na_get_initiatorname(
}
void iscsit_set_default_node_attribues(
struct iscsi_node_acl *acl)
struct iscsi_node_acl *acl,
struct iscsi_portal_group *tpg)
{
struct iscsi_node_attrib *a = &acl->node_attrib;
@ -44,7 +45,7 @@ void iscsit_set_default_node_attribues(
a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS;
a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS;
a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS;
a->default_erl = NA_DEFAULT_ERL;
a->default_erl = tpg->tpg_attrib.default_erl;
}
int iscsit_na_dataout_timeout(

3
drivers/target/iscsi/iscsi_target_nodeattrib.h
View File

@ -1,7 +1,8 @@
#ifndef ISCSI_TARGET_NODEATTRIB_H
#define ISCSI_TARGET_NODEATTRIB_H
extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *);
extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *,
struct iscsi_portal_group *);
extern int iscsit_na_dataout_timeout(struct iscsi_node_acl *, u32);
extern int iscsit_na_dataout_timeout_retries(struct iscsi_node_acl *, u32);
extern int iscsit_na_nopin_timeout(struct iscsi_node_acl *, u32);

18
drivers/target/iscsi/iscsi_target_tpg.c
View File

@ -224,6 +224,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
a->default_erl = TA_DEFAULT_ERL;
}
int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@ -840,3 +841,20 @@ int iscsit_ta_demo_mode_discovery(
return 0;
}
int iscsit_ta_default_erl(
struct iscsi_portal_group *tpg,
u32 default_erl)
{
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) {
pr_err("Illegal value for default_erl: %u\n", default_erl);
return -EINVAL;
}
a->default_erl = default_erl;
pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl);
return 0;
}

1
drivers/target/iscsi/iscsi_target_tpg.h
View File

@ -38,5 +38,6 @@ extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32);
extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32);
extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32);
extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32);
extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32);
#endif /* ISCSI_TARGET_TPG_H */