From d1fa7a1d506730a5d1211048c2fdacc42373d4d5 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 20 Nov 2013 11:57:18 -0800 Subject: [PATCH] iscsi-target: Expose default_erl as TPG attribute 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 Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_configfs.c | 11 ++++++++++- drivers/target/iscsi/iscsi_target_core.h | 5 ++--- drivers/target/iscsi/iscsi_target_nodeattrib.c | 5 +++-- drivers/target/iscsi/iscsi_target_nodeattrib.h | 3 ++- drivers/target/iscsi/iscsi_target_tpg.c | 18 ++++++++++++++++++ drivers/target/iscsi/iscsi_target_tpg.h | 1 + 6 files changed, 36 insertions(+), 7 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index fde3624..e3318ed 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -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) diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 8dcb3c1..48f7b3b 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -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; }; diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c index 93bdc47..16454a9 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.c +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c @@ -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( diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.h b/drivers/target/iscsi/iscsi_target_nodeattrib.h index c970b326..0c69a46 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.h +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.h @@ -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); diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 98ccf0b..3976183 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -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; +} diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h index 3e8ce86..213c0fc 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.h +++ b/drivers/target/iscsi/iscsi_target_tpg.h @@ -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 */ -- 2.7.4