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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-07-26 17:48:43 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-08-22 19:25:35 +0000 |
| commit | 052605c6caa3e1edf8eee8fe5fe6d53f5721f39a (patch) | |
| tree | 87997618fff7f63a4c5bef8a6a093d522d424266 /drivers/target/target_core_tpg.c | |
| parent | eb39d34004888afcc0a44d9c36383cd69fa3b3b9 (diff) | |
| download | linux-052605c6caa3e1edf8eee8fe5fe6d53f5721f39a.tar.bz2 | |
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 'drivers/target/target_core_tpg.c')
| -rw-r--r-- | drivers/target/target_core_tpg.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 4f1ba4c5ef11..718ccd1348b1 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -298,8 +298,16 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); return NULL; } - - core_tpg_add_node_to_devs(acl, tpg); + /* + * Here we only create demo-mode MappedLUNs from the active + * TPG LUNs if the fabric is not explictly asking for + * tpg_check_demo_mode_login_only() == 1. + */ + if ((tpg->se_tpg_tfo->tpg_check_demo_mode_login_only != NULL) && + (tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg) == 1)) + do { ; } while (0); + else + core_tpg_add_node_to_devs(acl, tpg); spin_lock_bh(&tpg->acl_node_lock); list_add_tail(&acl->acl_list, &tpg->acl_node_list); |