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Target/configfs: Expose iSCSI network portal group T10-PI support 

User may enable T10-PI support per network portal group. any connection
established on top of it, will be required to serve protected transactions.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Sagi Grimberg 2014-02-19 17:50:20 +02:00 committed by Nicholas Bellinger
parent 5b168dcd6a
commit 8085176fd9
3 changed files with 26 additions and 0 deletions
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6
drivers/target/iscsi/iscsi_target_configfs.c
View File

@ -1052,6 +1052,11 @@ TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
*/
DEF_TPG_ATTRIB(default_erl);
TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
/*
* Define iscsi_tpg_attrib_s_t10_pi
*/
DEF_TPG_ATTRIB(t10_pi);
TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR);
static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
&iscsi_tpg_attrib_authentication.attr,
@ -1064,6 +1069,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
&iscsi_tpg_attrib_prod_mode_write_protect.attr,
&iscsi_tpg_attrib_demo_mode_discovery.attr,
&iscsi_tpg_attrib_default_erl.attr,
&iscsi_tpg_attrib_t10_pi.attr,
NULL,
};

19
drivers/target/iscsi/iscsi_target_tpg.c
View File

@ -860,3 +860,22 @@ int iscsit_ta_default_erl(
return 0;
}
int iscsit_ta_t10_pi(
struct iscsi_portal_group *tpg,
u32 flag)
{
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
if ((flag != 0) && (flag != 1)) {
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
a->t10_pi = flag;
pr_debug("iSCSI_TPG[%hu] - T10 Protection information bit:"
" %s\n", tpg->tpgt, (a->t10_pi) ?
"ON" : "OFF");
return 0;
}

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

@ -39,5 +39,6 @@ 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);
extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32);
#endif /* ISCSI_TARGET_TPG_H */