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authorNicholas Bellinger <nab@linux-iscsi.org>2011-07-27 00:48:43 (GMT)
committerNicholas Bellinger <nab@linux-iscsi.org>2011-08-22 19:25:35 (GMT)
commit052605c6caa3e1edf8eee8fe5fe6d53f5721f39a (patch)
tree87997618fff7f63a4c5bef8a6a093d522d424266 /include
parenteb39d34004888afcc0a44d9c36383cd69fa3b3b9 (diff)
downloadlinux-052605c6caa3e1edf8eee8fe5fe6d53f5721f39a.tar.xz
target: Make standard INQUIRY return 'not connected' for tpg_virt_lun0
This patch changes target_emulate_inquiry_std() to set the 'not connected' (0x35) bit in standard INQUIRY response data when we are processing a request to a virtual LUN=0 mapping from struct se_device *g_lun0_dev that have been setup for us in transport_lookup_cmd_lun(). This addresses an issue where qla2xxx FC clients need to be able to create demo-mode I_T FC Nexuses by default, but should not be exposing the default set of TPG LUNs to all FC clients. This includes adding an new optional target_core_fabric_ops->tpg_check_demo_mode_login_only() caller to allow demo_mode nexuses to skip the old default of bulding a demo-mode MappedLUNs list via core_tpg_add_node_to_devs(). (roland: Add missing tpg_check_demo_mode_login_only check in core_dev_add_lun) Reported-by: Roland Dreier <roland@purestorage.com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
Diffstat (limited to 'include')
-rw-r--r--include/target/target_core_fabric_ops.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h
index 2de8fe9..126c675 100644
--- a/include/target/target_core_fabric_ops.h
+++ b/include/target/target_core_fabric_ops.h
@@ -27,6 +27,12 @@ struct target_core_fabric_ops {
int (*tpg_check_demo_mode_cache)(struct se_portal_group *);
int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *);
int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *);
+ /*
+ * Optionally used by fabrics to allow demo-mode login, but not
+ * expose any TPG LUNs, and return 'not connected' in standard
+ * inquiry response
+ */
+ int (*tpg_check_demo_mode_login_only)(struct se_portal_group *);
struct se_node_acl *(*tpg_alloc_fabric_acl)(
struct se_portal_group *);
void (*tpg_release_fabric_acl)(struct se_portal_group *,