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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-28 12:04:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-28 12:04:17 -0700
commit9ba55cf7cfbfd12a7e914d0d55b7581e896b3f0d (patch)
treef53dba839ff2faa2fff1878b091bbe5017951f4a /Documentation
parent1cbe06c3cf542d48eb22180163e00f91760ef8cd (diff)
parent8f0dfb3d8b1120c61f6e2cc3729290db10772b2d (diff)
downloadlinux-9ba55cf7cfbfd12a7e914d0d55b7581e896b3f0d.tar.gz
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger: "Here are the outstanding target pending updates for v4.7-rc1. The highlights this round include: - Allow external PR/ALUA metadata path be defined at runtime via top level configfs attribute (Lee) - Fix target session shutdown bug for ib_srpt multi-channel (hch) - Make TFO close_session() and shutdown_session() optional (hch) - Drop se_sess->sess_kref + convert tcm_qla2xxx to internal kref (hch) - Add tcm_qla2xxx endpoint attribute for basic FC jammer (Laurence) - Refactor iscsi-target RX/TX PDU encode/decode into common code (Varun) - Extend iscsit_transport with xmit_pdu, release_cmd, get_rx_pdu, validate_parameters, and get_r2t_ttt for generic ISO offload (Varun) - Initial merge of cxgb iscsi-segment offload target driver (Varun) The bulk of the changes are Chelsio's new driver, along with a number of iscsi-target common code improvements made by Varun + Co along the way" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (29 commits) iscsi-target: Fix early sk_data_ready LOGIN_FLAGS_READY race cxgbit: Use type ISCSI_CXGBIT + cxgbit tpg_np attribute iscsi-target: Convert transport drivers to signal rdma_shutdown iscsi-target: Make iscsi_tpg_np driver show/store use generic code tcm_qla2xxx Add SCSI command jammer/discard capability iscsi-target: graceful disconnect on invalid mapping to iovec target: need_to_release is always false, remove redundant check and kfree target: remove sess_kref and ->shutdown_session iscsi-target: remove usage of ->shutdown_session tcm_qla2xxx: introduce a private sess_kref target: make close_session optional target: make ->shutdown_session optional target: remove acl_stop target: consolidate and fix session shutdown cxgbit: add files for cxgbit.ko iscsi-target: export symbols iscsi-target: call complete on conn_logout_comp iscsi-target: clear tx_thread_active iscsi-target: add new offload transport type iscsi-target: use conn_transport->transport_type in text rsp ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/scsi/tcm_qla2xxx.txt22
-rwxr-xr-xDocumentation/target/tcm_mod_builder.py16
2 files changed, 22 insertions, 16 deletions
diff --git a/Documentation/scsi/tcm_qla2xxx.txt b/Documentation/scsi/tcm_qla2xxx.txt
new file mode 100644
index 000000000000..c3a670a25e2b
--- /dev/null
+++ b/Documentation/scsi/tcm_qla2xxx.txt
@@ -0,0 +1,22 @@
+tcm_qla2xxx jam_host attribute
+------------------------------
+There is now a new module endpoint atribute called jam_host
+attribute: jam_host: boolean=0/1
+This attribute and accompanying code is only included if the
+Kconfig parameter TCM_QLA2XXX_DEBUG is set to Y
+By default this jammer code and functionality is disabled
+
+Use this attribute to control the discarding of SCSI commands to a
+selected host.
+This may be useful for testing error handling and simulating slow drain
+and other fabric issues.
+
+Setting a boolean of 1 for the jam_host attribute for a particular host
+ will discard the commands for that host.
+Reset back to 0 to stop the jamming.
+
+Enable host 4 to be jammed
+echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
+
+Disable jamming on host 4
+echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py
index 7d370c9b1450..94bf6944bb1e 100755
--- a/Documentation/target/tcm_mod_builder.py
+++ b/Documentation/target/tcm_mod_builder.py
@@ -294,8 +294,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
buf += " .tpg_check_prod_mode_write_protect = " + fabric_mod_name + "_check_false,\n"
buf += " .tpg_get_inst_index = " + fabric_mod_name + "_tpg_get_inst_index,\n"
buf += " .release_cmd = " + fabric_mod_name + "_release_cmd,\n"
- buf += " .shutdown_session = " + fabric_mod_name + "_shutdown_session,\n"
- buf += " .close_session = " + fabric_mod_name + "_close_session,\n"
buf += " .sess_get_index = " + fabric_mod_name + "_sess_get_index,\n"
buf += " .sess_get_initiator_sid = NULL,\n"
buf += " .write_pending = " + fabric_mod_name + "_write_pending,\n"
@@ -467,20 +465,6 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name):
buf += "}\n\n"
bufi += "void " + fabric_mod_name + "_release_cmd(struct se_cmd *);\n"
- if re.search('shutdown_session\)\(', fo):
- buf += "int " + fabric_mod_name + "_shutdown_session(struct se_session *se_sess)\n"
- buf += "{\n"
- buf += " return 0;\n"
- buf += "}\n\n"
- bufi += "int " + fabric_mod_name + "_shutdown_session(struct se_session *);\n"
-
- if re.search('close_session\)\(', fo):
- buf += "void " + fabric_mod_name + "_close_session(struct se_session *se_sess)\n"
- buf += "{\n"
- buf += " return;\n"
- buf += "}\n\n"
- bufi += "void " + fabric_mod_name + "_close_session(struct se_session *);\n"
-
if re.search('sess_get_index\)\(', fo):
buf += "u32 " + fabric_mod_name + "_sess_get_index(struct se_session *se_sess)\n"
buf += "{\n"