* [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support
@ 2013-03-22 11:41 vikas.chaudhary
2013-03-22 11:41 ` [PATCH 1/4] scsi_transport_iscsi: Add " vikas.chaudhary
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: vikas.chaudhary @ 2013-03-22 11:41 UTC (permalink / raw)
To: jbottomley, michaelc
Cc: linux-scsi, vikas.chaudhary, lalit.chandivade, ravi.anand,
poornima.vonti, manish.rangankar
From: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
James,
Following patches allows iscsiadm to manage iSCSI target information
stored on adapter flash on per host basis and and perform various
operations like add, delete, login, logout, and update the target
information.
Please apply these patches to the scsi tree "misc" branch at your
earliest convenience.
Adheer Chandravanshi (3):
scsi_transport_iscsi: Add flash node mgmt support
libiscsi: export function iscsi_switch_str_param
qla4xxx: Add flash node mgmt support
Vikas Chaudhary (1):
qla4xxx: Update driver version to 5.03.00-k7
Thanks,
Vikas.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 1/4] scsi_transport_iscsi: Add flash node mgmt support
2013-03-22 11:41 [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support vikas.chaudhary
@ 2013-03-22 11:41 ` vikas.chaudhary
2013-03-22 11:41 ` [PATCH 2/4] libiscsi: export function iscsi_switch_str_param vikas.chaudhary
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: vikas.chaudhary @ 2013-03-22 11:41 UTC (permalink / raw)
To: jbottomley, michaelc
Cc: linux-scsi, vikas.chaudhary, lalit.chandivade, ravi.anand,
poornima.vonti, manish.rangankar, Adheer Chandravanshi
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
This patch allows iscsiadm to manage iSCSI target information stored on
adapter flash on per host basis.
The sysfs entries will look as cited below:
/sys/bus/iscsi_flashnode/devices/flashnode_sess-<host_no>:<flashnode_id>/<session attrs>
/sys/bus/iscsi_flashnode/devices/flashnode_conn-<host_no>:<flashnode_id>:<conn_id>/<conn attrs>
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
---
drivers/scsi/scsi_transport_iscsi.c | 1002 ++++++++++++++++++++++++++++++++++-
include/scsi/iscsi_if.h | 113 ++++
include/scsi/scsi_transport_iscsi.h | 151 ++++++
3 files changed, 1265 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 0a74b97..ce06e87 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/bsg-lib.h>
#include <linux/idr.h>
+#include <linux/list.h>
#include <net/tcp.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
@@ -460,6 +461,689 @@ void iscsi_destroy_iface(struct iscsi_iface *iface)
EXPORT_SYMBOL_GPL(iscsi_destroy_iface);
/*
+ * Interface to display flash node params to sysfs
+ */
+
+#define ISCSI_FLASHNODE_ATTR(_prefix, _name, _mode, _show, _store) \
+struct device_attribute dev_attr_##_prefix##_##_name = \
+ __ATTR(_name, _mode, _show, _store)
+
+/* flash node session attrs show */
+#define iscsi_flashnode_sess_attr_show(type, name, param) \
+static ssize_t \
+show_##type##_##name(struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct iscsi_bus_flash_session *fnode_sess = \
+ iscsi_dev_to_flash_session(dev);\
+ struct iscsi_transport *t = fnode_sess->transport; \
+ return t->get_flashnode_param(fnode_sess, param, buf); \
+} \
+
+
+#define iscsi_flashnode_sess_attr(type, name, param) \
+ iscsi_flashnode_sess_attr_show(type, name, param) \
+static ISCSI_FLASHNODE_ATTR(type, name, S_IRUGO, \
+ show_##type##_##name, NULL);
+
+/* Flash node session attributes */
+
+iscsi_flashnode_sess_attr(fnode, auto_snd_tgt_disable,
+ ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE);
+iscsi_flashnode_sess_attr(fnode, discovery_session,
+ ISCSI_FLASHNODE_DISCOVERY_SESS);
+iscsi_flashnode_sess_attr(fnode, portal_type, ISCSI_FLASHNODE_PORTAL_TYPE);
+iscsi_flashnode_sess_attr(fnode, entry_enable, ISCSI_FLASHNODE_ENTRY_EN);
+iscsi_flashnode_sess_attr(fnode, immediate_data, ISCSI_FLASHNODE_IMM_DATA_EN);
+iscsi_flashnode_sess_attr(fnode, initial_r2t, ISCSI_FLASHNODE_INITIAL_R2T_EN);
+iscsi_flashnode_sess_attr(fnode, data_seq_in_order,
+ ISCSI_FLASHNODE_DATASEQ_INORDER);
+iscsi_flashnode_sess_attr(fnode, data_pdu_in_order,
+ ISCSI_FLASHNODE_PDU_INORDER);
+iscsi_flashnode_sess_attr(fnode, chap_auth, ISCSI_FLASHNODE_CHAP_AUTH_EN);
+iscsi_flashnode_sess_attr(fnode, discovery_logout,
+ ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN);
+iscsi_flashnode_sess_attr(fnode, bidi_chap, ISCSI_FLASHNODE_BIDI_CHAP_EN);
+iscsi_flashnode_sess_attr(fnode, discovery_auth_optional,
+ ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL);
+iscsi_flashnode_sess_attr(fnode, erl, ISCSI_FLASHNODE_ERL);
+iscsi_flashnode_sess_attr(fnode, first_burst_len, ISCSI_FLASHNODE_FIRST_BURST);
+iscsi_flashnode_sess_attr(fnode, def_time2wait, ISCSI_FLASHNODE_DEF_TIME2WAIT);
+iscsi_flashnode_sess_attr(fnode, def_time2retain,
+ ISCSI_FLASHNODE_DEF_TIME2RETAIN);
+iscsi_flashnode_sess_attr(fnode, max_outstanding_r2t, ISCSI_FLASHNODE_MAX_R2T);
+iscsi_flashnode_sess_attr(fnode, isid, ISCSI_FLASHNODE_ISID);
+iscsi_flashnode_sess_attr(fnode, tsid, ISCSI_FLASHNODE_TSID);
+iscsi_flashnode_sess_attr(fnode, max_burst_len, ISCSI_FLASHNODE_MAX_BURST);
+iscsi_flashnode_sess_attr(fnode, def_taskmgmt_tmo,
+ ISCSI_FLASHNODE_DEF_TASKMGMT_TMO);
+iscsi_flashnode_sess_attr(fnode, targetalias, ISCSI_FLASHNODE_ALIAS);
+iscsi_flashnode_sess_attr(fnode, targetname, ISCSI_FLASHNODE_NAME);
+iscsi_flashnode_sess_attr(fnode, tpgt, ISCSI_FLASHNODE_TPGT);
+iscsi_flashnode_sess_attr(fnode, discovery_parent_idx,
+ ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX);
+iscsi_flashnode_sess_attr(fnode, discovery_parent_type,
+ ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE);
+iscsi_flashnode_sess_attr(fnode, chap_in_idx, ISCSI_FLASHNODE_CHAP_IN_IDX);
+iscsi_flashnode_sess_attr(fnode, chap_out_idx, ISCSI_FLASHNODE_CHAP_OUT_IDX);
+iscsi_flashnode_sess_attr(fnode, username, ISCSI_FLASHNODE_USERNAME);
+iscsi_flashnode_sess_attr(fnode, username_in, ISCSI_FLASHNODE_USERNAME_IN);
+iscsi_flashnode_sess_attr(fnode, password, ISCSI_FLASHNODE_PASSWORD);
+iscsi_flashnode_sess_attr(fnode, password_in, ISCSI_FLASHNODE_PASSWORD_IN);
+iscsi_flashnode_sess_attr(fnode, is_boot_target, ISCSI_FLASHNODE_IS_BOOT_TGT);
+
+static struct attribute *iscsi_flashnode_sess_attrs[] = {
+ &dev_attr_fnode_auto_snd_tgt_disable.attr,
+ &dev_attr_fnode_discovery_session.attr,
+ &dev_attr_fnode_portal_type.attr,
+ &dev_attr_fnode_entry_enable.attr,
+ &dev_attr_fnode_immediate_data.attr,
+ &dev_attr_fnode_initial_r2t.attr,
+ &dev_attr_fnode_data_seq_in_order.attr,
+ &dev_attr_fnode_data_pdu_in_order.attr,
+ &dev_attr_fnode_chap_auth.attr,
+ &dev_attr_fnode_discovery_logout.attr,
+ &dev_attr_fnode_bidi_chap.attr,
+ &dev_attr_fnode_discovery_auth_optional.attr,
+ &dev_attr_fnode_erl.attr,
+ &dev_attr_fnode_first_burst_len.attr,
+ &dev_attr_fnode_def_time2wait.attr,
+ &dev_attr_fnode_def_time2retain.attr,
+ &dev_attr_fnode_max_outstanding_r2t.attr,
+ &dev_attr_fnode_isid.attr,
+ &dev_attr_fnode_tsid.attr,
+ &dev_attr_fnode_max_burst_len.attr,
+ &dev_attr_fnode_def_taskmgmt_tmo.attr,
+ &dev_attr_fnode_targetalias.attr,
+ &dev_attr_fnode_targetname.attr,
+ &dev_attr_fnode_tpgt.attr,
+ &dev_attr_fnode_discovery_parent_idx.attr,
+ &dev_attr_fnode_discovery_parent_type.attr,
+ &dev_attr_fnode_chap_in_idx.attr,
+ &dev_attr_fnode_chap_out_idx.attr,
+ &dev_attr_fnode_username.attr,
+ &dev_attr_fnode_username_in.attr,
+ &dev_attr_fnode_password.attr,
+ &dev_attr_fnode_password_in.attr,
+ &dev_attr_fnode_is_boot_target.attr,
+ NULL,
+};
+
+static umode_t iscsi_flashnode_sess_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int i)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct iscsi_bus_flash_session *fnode_sess =
+ iscsi_dev_to_flash_session(dev);
+ struct iscsi_transport *t = fnode_sess->transport;
+ int param;
+
+ if (attr == &dev_attr_fnode_auto_snd_tgt_disable.attr) {
+ param = ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE;
+ } else if (attr == &dev_attr_fnode_discovery_session.attr) {
+ param = ISCSI_FLASHNODE_DISCOVERY_SESS;
+ } else if (attr == &dev_attr_fnode_portal_type.attr) {
+ param = ISCSI_FLASHNODE_PORTAL_TYPE;
+ } else if (attr == &dev_attr_fnode_entry_enable.attr) {
+ param = ISCSI_FLASHNODE_ENTRY_EN;
+ } else if (attr == &dev_attr_fnode_immediate_data.attr) {
+ param = ISCSI_FLASHNODE_IMM_DATA_EN;
+ } else if (attr == &dev_attr_fnode_initial_r2t.attr) {
+ param = ISCSI_FLASHNODE_INITIAL_R2T_EN;
+ } else if (attr == &dev_attr_fnode_data_seq_in_order.attr) {
+ param = ISCSI_FLASHNODE_DATASEQ_INORDER;
+ } else if (attr == &dev_attr_fnode_data_pdu_in_order.attr) {
+ param = ISCSI_FLASHNODE_PDU_INORDER;
+ } else if (attr == &dev_attr_fnode_chap_auth.attr) {
+ param = ISCSI_FLASHNODE_CHAP_AUTH_EN;
+ } else if (attr == &dev_attr_fnode_discovery_logout.attr) {
+ param = ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN;
+ } else if (attr == &dev_attr_fnode_bidi_chap.attr) {
+ param = ISCSI_FLASHNODE_BIDI_CHAP_EN;
+ } else if (attr == &dev_attr_fnode_discovery_auth_optional.attr) {
+ param = ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL;
+ } else if (attr == &dev_attr_fnode_erl.attr) {
+ param = ISCSI_FLASHNODE_ERL;
+ } else if (attr == &dev_attr_fnode_first_burst_len.attr) {
+ param = ISCSI_FLASHNODE_FIRST_BURST;
+ } else if (attr == &dev_attr_fnode_def_time2wait.attr) {
+ param = ISCSI_FLASHNODE_DEF_TIME2WAIT;
+ } else if (attr == &dev_attr_fnode_def_time2retain.attr) {
+ param = ISCSI_FLASHNODE_DEF_TIME2RETAIN;
+ } else if (attr == &dev_attr_fnode_max_outstanding_r2t.attr) {
+ param = ISCSI_FLASHNODE_MAX_R2T;
+ } else if (attr == &dev_attr_fnode_isid.attr) {
+ param = ISCSI_FLASHNODE_ISID;
+ } else if (attr == &dev_attr_fnode_tsid.attr) {
+ param = ISCSI_FLASHNODE_TSID;
+ } else if (attr == &dev_attr_fnode_max_burst_len.attr) {
+ param = ISCSI_FLASHNODE_MAX_BURST;
+ } else if (attr == &dev_attr_fnode_def_taskmgmt_tmo.attr) {
+ param = ISCSI_FLASHNODE_DEF_TASKMGMT_TMO;
+ } else if (attr == &dev_attr_fnode_targetalias.attr) {
+ param = ISCSI_FLASHNODE_ALIAS;
+ } else if (attr == &dev_attr_fnode_targetname.attr) {
+ param = ISCSI_FLASHNODE_NAME;
+ } else if (attr == &dev_attr_fnode_tpgt.attr) {
+ param = ISCSI_FLASHNODE_TPGT;
+ } else if (attr == &dev_attr_fnode_discovery_parent_idx.attr) {
+ param = ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX;
+ } else if (attr == &dev_attr_fnode_discovery_parent_type.attr) {
+ param = ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE;
+ } else if (attr == &dev_attr_fnode_chap_in_idx.attr) {
+ param = ISCSI_FLASHNODE_CHAP_IN_IDX;
+ } else if (attr == &dev_attr_fnode_chap_out_idx.attr) {
+ param = ISCSI_FLASHNODE_CHAP_OUT_IDX;
+ } else if (attr == &dev_attr_fnode_username.attr) {
+ param = ISCSI_FLASHNODE_USERNAME;
+ } else if (attr == &dev_attr_fnode_username_in.attr) {
+ param = ISCSI_FLASHNODE_USERNAME_IN;
+ } else if (attr == &dev_attr_fnode_password.attr) {
+ param = ISCSI_FLASHNODE_PASSWORD;
+ } else if (attr == &dev_attr_fnode_password_in.attr) {
+ param = ISCSI_FLASHNODE_PASSWORD_IN;
+ } else if (attr == &dev_attr_fnode_is_boot_target.attr) {
+ param = ISCSI_FLASHNODE_IS_BOOT_TGT;
+ } else {
+ WARN_ONCE(1, "Invalid flashnode session attr");
+ return 0;
+ }
+
+ return t->attr_is_visible(ISCSI_FLASHNODE_PARAM, param);
+}
+
+static struct attribute_group iscsi_flashnode_sess_attr_group = {
+ .attrs = iscsi_flashnode_sess_attrs,
+ .is_visible = iscsi_flashnode_sess_attr_is_visible,
+};
+
+static const struct attribute_group *iscsi_flashnode_sess_attr_groups[] = {
+ &iscsi_flashnode_sess_attr_group,
+ NULL,
+};
+
+static void iscsi_flashnode_sess_release(struct device *dev)
+{
+ struct iscsi_bus_flash_session *fnode_sess =
+ iscsi_dev_to_flash_session(dev);
+
+ kfree(fnode_sess->targetname);
+ kfree(fnode_sess->targetalias);
+ kfree(fnode_sess->portal_type);
+ kfree(fnode_sess);
+}
+
+struct device_type iscsi_flashnode_sess_dev_type = {
+ .name = "iscsi_flashnode_sess_dev_type",
+ .groups = iscsi_flashnode_sess_attr_groups,
+ .release = iscsi_flashnode_sess_release,
+};
+
+/* flash node connection attrs show */
+#define iscsi_flashnode_conn_attr_show(type, name, param) \
+static ssize_t \
+show_##type##_##name(struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev);\
+ struct iscsi_bus_flash_session *fnode_sess = \
+ iscsi_flash_conn_to_flash_session(fnode_conn);\
+ struct iscsi_transport *t = fnode_conn->transport; \
+ return t->get_flashnode_param(fnode_sess, param, buf); \
+} \
+
+
+#define iscsi_flashnode_conn_attr(type, name, param) \
+ iscsi_flashnode_conn_attr_show(type, name, param) \
+static ISCSI_FLASHNODE_ATTR(type, name, S_IRUGO, \
+ show_##type##_##name, NULL);
+
+/* Flash node connection attributes */
+
+iscsi_flashnode_conn_attr(fnode, is_fw_assigned_ipv6,
+ ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6);
+iscsi_flashnode_conn_attr(fnode, header_digest, ISCSI_FLASHNODE_HDR_DGST_EN);
+iscsi_flashnode_conn_attr(fnode, data_digest, ISCSI_FLASHNODE_DATA_DGST_EN);
+iscsi_flashnode_conn_attr(fnode, snack_req, ISCSI_FLASHNODE_SNACK_REQ_EN);
+iscsi_flashnode_conn_attr(fnode, tcp_timestamp_stat,
+ ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT);
+iscsi_flashnode_conn_attr(fnode, tcp_nagle_disable,
+ ISCSI_FLASHNODE_TCP_NAGLE_DISABLE);
+iscsi_flashnode_conn_attr(fnode, tcp_wsf_disable,
+ ISCSI_FLASHNODE_TCP_WSF_DISABLE);
+iscsi_flashnode_conn_attr(fnode, tcp_timer_scale,
+ ISCSI_FLASHNODE_TCP_TIMER_SCALE);
+iscsi_flashnode_conn_attr(fnode, tcp_timestamp_enable,
+ ISCSI_FLASHNODE_TCP_TIMESTAMP_EN);
+iscsi_flashnode_conn_attr(fnode, fragment_disable,
+ ISCSI_FLASHNODE_IP_FRAG_DISABLE);
+iscsi_flashnode_conn_attr(fnode, keepalive_tmo, ISCSI_FLASHNODE_KEEPALIVE_TMO);
+iscsi_flashnode_conn_attr(fnode, port, ISCSI_FLASHNODE_PORT);
+iscsi_flashnode_conn_attr(fnode, ipaddress, ISCSI_FLASHNODE_IPADDR);
+iscsi_flashnode_conn_attr(fnode, max_recv_dlength,
+ ISCSI_FLASHNODE_MAX_RECV_DLENGTH);
+iscsi_flashnode_conn_attr(fnode, max_xmit_dlength,
+ ISCSI_FLASHNODE_MAX_XMIT_DLENGTH);
+iscsi_flashnode_conn_attr(fnode, local_port, ISCSI_FLASHNODE_LOCAL_PORT);
+iscsi_flashnode_conn_attr(fnode, ipv4_tos, ISCSI_FLASHNODE_IPV4_TOS);
+iscsi_flashnode_conn_attr(fnode, ipv6_traffic_class, ISCSI_FLASHNODE_IPV6_TC);
+iscsi_flashnode_conn_attr(fnode, ipv6_flow_label,
+ ISCSI_FLASHNODE_IPV6_FLOW_LABEL);
+iscsi_flashnode_conn_attr(fnode, redirect_ipaddr,
+ ISCSI_FLASHNODE_REDIRECT_IPADDR);
+iscsi_flashnode_conn_attr(fnode, max_segment_size,
+ ISCSI_FLASHNODE_MAX_SEGMENT_SIZE);
+iscsi_flashnode_conn_attr(fnode, link_local_ipv6,
+ ISCSI_FLASHNODE_LINK_LOCAL_IPV6);
+iscsi_flashnode_conn_attr(fnode, tcp_xmit_wsf, ISCSI_FLASHNODE_TCP_XMIT_WSF);
+iscsi_flashnode_conn_attr(fnode, tcp_recv_wsf, ISCSI_FLASHNODE_TCP_RECV_WSF);
+iscsi_flashnode_conn_attr(fnode, statsn, ISCSI_FLASHNODE_STATSN);
+iscsi_flashnode_conn_attr(fnode, exp_statsn, ISCSI_FLASHNODE_EXP_STATSN);
+
+static struct attribute *iscsi_flashnode_conn_attrs[] = {
+ &dev_attr_fnode_is_fw_assigned_ipv6.attr,
+ &dev_attr_fnode_header_digest.attr,
+ &dev_attr_fnode_data_digest.attr,
+ &dev_attr_fnode_snack_req.attr,
+ &dev_attr_fnode_tcp_timestamp_stat.attr,
+ &dev_attr_fnode_tcp_nagle_disable.attr,
+ &dev_attr_fnode_tcp_wsf_disable.attr,
+ &dev_attr_fnode_tcp_timer_scale.attr,
+ &dev_attr_fnode_tcp_timestamp_enable.attr,
+ &dev_attr_fnode_fragment_disable.attr,
+ &dev_attr_fnode_max_recv_dlength.attr,
+ &dev_attr_fnode_max_xmit_dlength.attr,
+ &dev_attr_fnode_keepalive_tmo.attr,
+ &dev_attr_fnode_port.attr,
+ &dev_attr_fnode_ipaddress.attr,
+ &dev_attr_fnode_redirect_ipaddr.attr,
+ &dev_attr_fnode_max_segment_size.attr,
+ &dev_attr_fnode_local_port.attr,
+ &dev_attr_fnode_ipv4_tos.attr,
+ &dev_attr_fnode_ipv6_traffic_class.attr,
+ &dev_attr_fnode_ipv6_flow_label.attr,
+ &dev_attr_fnode_link_local_ipv6.attr,
+ &dev_attr_fnode_tcp_xmit_wsf.attr,
+ &dev_attr_fnode_tcp_recv_wsf.attr,
+ &dev_attr_fnode_statsn.attr,
+ &dev_attr_fnode_exp_statsn.attr,
+ NULL,
+};
+
+static umode_t iscsi_flashnode_conn_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int i)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev);
+ struct iscsi_transport *t = fnode_conn->transport;
+ int param;
+
+ if (attr == &dev_attr_fnode_is_fw_assigned_ipv6.attr) {
+ param = ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6;
+ } else if (attr == &dev_attr_fnode_header_digest.attr) {
+ param = ISCSI_FLASHNODE_HDR_DGST_EN;
+ } else if (attr == &dev_attr_fnode_data_digest.attr) {
+ param = ISCSI_FLASHNODE_DATA_DGST_EN;
+ } else if (attr == &dev_attr_fnode_snack_req.attr) {
+ param = ISCSI_FLASHNODE_SNACK_REQ_EN;
+ } else if (attr == &dev_attr_fnode_tcp_timestamp_stat.attr) {
+ param = ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT;
+ } else if (attr == &dev_attr_fnode_tcp_nagle_disable.attr) {
+ param = ISCSI_FLASHNODE_TCP_NAGLE_DISABLE;
+ } else if (attr == &dev_attr_fnode_tcp_wsf_disable.attr) {
+ param = ISCSI_FLASHNODE_TCP_WSF_DISABLE;
+ } else if (attr == &dev_attr_fnode_tcp_timer_scale.attr) {
+ param = ISCSI_FLASHNODE_TCP_TIMER_SCALE;
+ } else if (attr == &dev_attr_fnode_tcp_timestamp_enable.attr) {
+ param = ISCSI_FLASHNODE_TCP_TIMESTAMP_EN;
+ } else if (attr == &dev_attr_fnode_fragment_disable.attr) {
+ param = ISCSI_FLASHNODE_IP_FRAG_DISABLE;
+ } else if (attr == &dev_attr_fnode_max_recv_dlength.attr) {
+ param = ISCSI_FLASHNODE_MAX_RECV_DLENGTH;
+ } else if (attr == &dev_attr_fnode_max_xmit_dlength.attr) {
+ param = ISCSI_FLASHNODE_MAX_XMIT_DLENGTH;
+ } else if (attr == &dev_attr_fnode_keepalive_tmo.attr) {
+ param = ISCSI_FLASHNODE_KEEPALIVE_TMO;
+ } else if (attr == &dev_attr_fnode_port.attr) {
+ param = ISCSI_FLASHNODE_PORT;
+ } else if (attr == &dev_attr_fnode_ipaddress.attr) {
+ param = ISCSI_FLASHNODE_IPADDR;
+ } else if (attr == &dev_attr_fnode_redirect_ipaddr.attr) {
+ param = ISCSI_FLASHNODE_REDIRECT_IPADDR;
+ } else if (attr == &dev_attr_fnode_max_segment_size.attr) {
+ param = ISCSI_FLASHNODE_MAX_SEGMENT_SIZE;
+ } else if (attr == &dev_attr_fnode_local_port.attr) {
+ param = ISCSI_FLASHNODE_LOCAL_PORT;
+ } else if (attr == &dev_attr_fnode_ipv4_tos.attr) {
+ param = ISCSI_FLASHNODE_IPV4_TOS;
+ } else if (attr == &dev_attr_fnode_ipv6_traffic_class.attr) {
+ param = ISCSI_FLASHNODE_IPV6_TC;
+ } else if (attr == &dev_attr_fnode_ipv6_flow_label.attr) {
+ param = ISCSI_FLASHNODE_IPV6_FLOW_LABEL;
+ } else if (attr == &dev_attr_fnode_link_local_ipv6.attr) {
+ param = ISCSI_FLASHNODE_LINK_LOCAL_IPV6;
+ } else if (attr == &dev_attr_fnode_tcp_xmit_wsf.attr) {
+ param = ISCSI_FLASHNODE_TCP_XMIT_WSF;
+ } else if (attr == &dev_attr_fnode_tcp_recv_wsf.attr) {
+ param = ISCSI_FLASHNODE_TCP_RECV_WSF;
+ } else if (attr == &dev_attr_fnode_statsn.attr) {
+ param = ISCSI_FLASHNODE_STATSN;
+ } else if (attr == &dev_attr_fnode_exp_statsn.attr) {
+ param = ISCSI_FLASHNODE_EXP_STATSN;
+ } else {
+ WARN_ONCE(1, "Invalid flashnode connection attr");
+ return 0;
+ }
+
+ return t->attr_is_visible(ISCSI_FLASHNODE_PARAM, param);
+}
+
+static struct attribute_group iscsi_flashnode_conn_attr_group = {
+ .attrs = iscsi_flashnode_conn_attrs,
+ .is_visible = iscsi_flashnode_conn_attr_is_visible,
+};
+
+static const struct attribute_group *iscsi_flashnode_conn_attr_groups[] = {
+ &iscsi_flashnode_conn_attr_group,
+ NULL,
+};
+
+static void iscsi_flashnode_conn_release(struct device *dev)
+{
+ struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev);
+
+ kfree(fnode_conn->ipaddress);
+ kfree(fnode_conn->redirect_ipaddr);
+ kfree(fnode_conn->link_local_ipv6_addr);
+ kfree(fnode_conn);
+}
+
+struct device_type iscsi_flashnode_conn_dev_type = {
+ .name = "iscsi_flashnode_conn_dev_type",
+ .groups = iscsi_flashnode_conn_attr_groups,
+ .release = iscsi_flashnode_conn_release,
+};
+
+struct bus_type iscsi_flashnode_bus;
+
+int iscsi_flashnode_bus_match(struct device *dev,
+ struct device_driver *drv)
+{
+ if (dev->bus == &iscsi_flashnode_bus)
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match);
+
+struct bus_type iscsi_flashnode_bus = {
+ .name = "iscsi_flashnode",
+ .match = &iscsi_flashnode_bus_match,
+};
+
+/**
+ * iscsi_create_flashnode_sess - Add flashnode session entry in sysfs
+ * @shost: pointer to host data
+ * @index: index of flashnode to add in sysfs
+ * @transport: pointer to transport data
+ * @dd_size: total size to allocate
+ *
+ * Adds a sysfs entry for the flashnode session attributes
+ *
+ * Returns:
+ * pointer to allocated flashnode sess on sucess
+ * %NULL on failure
+ */
+struct iscsi_bus_flash_session *
+iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index,
+ struct iscsi_transport *transport,
+ int dd_size)
+{
+ struct iscsi_bus_flash_session *fnode_sess;
+ int err;
+
+ fnode_sess = kzalloc(sizeof(*fnode_sess) + dd_size, GFP_KERNEL);
+ if (!fnode_sess)
+ return NULL;
+
+ fnode_sess->transport = transport;
+ fnode_sess->target_id = index;
+ fnode_sess->dev.type = &iscsi_flashnode_sess_dev_type;
+ fnode_sess->dev.bus = &iscsi_flashnode_bus;
+ fnode_sess->dev.parent = &shost->shost_gendev;
+ dev_set_name(&fnode_sess->dev, "flashnode_sess-%u:%u",
+ shost->host_no, index);
+
+ err = device_register(&fnode_sess->dev);
+ if (err)
+ goto free_fnode_sess;
+
+ if (dd_size)
+ fnode_sess->dd_data = &fnode_sess[1];
+
+ return fnode_sess;
+
+free_fnode_sess:
+ kfree(fnode_sess);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(iscsi_create_flashnode_sess);
+
+/**
+ * iscsi_create_flashnode_conn - Add flashnode conn entry in sysfs
+ * @shost: pointer to host data
+ * @fnode_sess: pointer to the parent flashnode session entry
+ * @transport: pointer to transport data
+ * @dd_size: total size to allocate
+ *
+ * Adds a sysfs entry for the flashnode connection attributes
+ *
+ * Returns:
+ * pointer to allocated flashnode conn on success
+ * %NULL on failure
+ */
+struct iscsi_bus_flash_conn *
+iscsi_create_flashnode_conn(struct Scsi_Host *shost,
+ struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_transport *transport,
+ int dd_size)
+{
+ struct iscsi_bus_flash_conn *fnode_conn;
+ int err;
+
+ fnode_conn = kzalloc(sizeof(*fnode_conn) + dd_size, GFP_KERNEL);
+ if (!fnode_conn)
+ return NULL;
+
+ fnode_conn->transport = transport;
+ fnode_conn->dev.type = &iscsi_flashnode_conn_dev_type;
+ fnode_conn->dev.bus = &iscsi_flashnode_bus;
+ fnode_conn->dev.parent = &fnode_sess->dev;
+ dev_set_name(&fnode_conn->dev, "flashnode_conn-%u:%u:0",
+ shost->host_no, fnode_sess->target_id);
+
+ err = device_register(&fnode_conn->dev);
+ if (err)
+ goto free_fnode_conn;
+
+ if (dd_size)
+ fnode_conn->dd_data = &fnode_conn[1];
+
+ return fnode_conn;
+
+free_fnode_conn:
+ kfree(fnode_conn);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn);
+
+/**
+ * iscsi_is_flashnode_conn_dev - verify passed device is to be flashnode conn
+ * @dev: device to verify
+ * @data: pointer to data containing value to use for verification
+ *
+ * Verifies if the passed device is flashnode conn device
+ *
+ * Returns:
+ * 1 on success
+ * 0 on failure
+ */
+int iscsi_is_flashnode_conn_dev(struct device *dev, void *data)
+{
+ return dev->bus == &iscsi_flashnode_bus;
+}
+EXPORT_SYMBOL_GPL(iscsi_is_flashnode_conn_dev);
+
+static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn)
+{
+ device_unregister(&fnode_conn->dev);
+ return 0;
+}
+
+static int flashnode_match_index(struct device *dev, void *data)
+{
+ struct iscsi_bus_flash_session *fnode_sess = NULL;
+ int ret = 0;
+
+ if (!iscsi_flashnode_bus_match(dev, NULL))
+ goto exit_match_index;
+
+ fnode_sess = iscsi_dev_to_flash_session(dev);
+ ret = (fnode_sess->target_id == *((int *)data)) ? 1 : 0;
+
+exit_match_index:
+ return ret;
+}
+
+/**
+ * iscsi_get_flashnode_by_index -finds flashnode session entry by index
+ * @shost: pointer to host data
+ * @data: pointer to data containing value to use for comparison
+ * @fn: function pointer that does actual comparison
+ *
+ * Finds the flashnode session object for the passed index
+ *
+ * Returns:
+ * pointer to found flashnode session object on success
+ * %NULL on failure
+ */
+static struct iscsi_bus_flash_session *
+iscsi_get_flashnode_by_index(struct Scsi_Host *shost, void *data,
+ int (*fn)(struct device *dev, void *data))
+{
+ struct iscsi_bus_flash_session *fnode_sess = NULL;
+ struct device *dev;
+
+ dev = device_find_child(&shost->shost_gendev, data, fn);
+ if (dev)
+ fnode_sess = iscsi_dev_to_flash_session(dev);
+
+ return fnode_sess;
+}
+
+/**
+ * iscsi_find_flashnode_sess - finds flashnode session entry
+ * @shost: pointer to host data
+ * @data: pointer to data containing value to use for comparison
+ * @fn: function pointer that does actual comparison
+ *
+ * Finds the flashnode session object comparing the data passed using logic
+ * defined in passed function pointer
+ *
+ * Returns:
+ * pointer to found flashnode session device object on success
+ * %NULL on failure
+ */
+struct device *
+iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data,
+ int (*fn)(struct device *dev, void *data))
+{
+ struct device *dev;
+
+ dev = device_find_child(&shost->shost_gendev, data, fn);
+ return dev;
+}
+EXPORT_SYMBOL_GPL(iscsi_find_flashnode_sess);
+
+/**
+ * iscsi_find_flashnode_conn - finds flashnode connection entry
+ * @fnode_sess: pointer to parent flashnode session entry
+ * @data: pointer to data containing value to use for comparison
+ * @fn: function pointer that does actual comparison
+ *
+ * Finds the flashnode connection object comparing the data passed using logic
+ * defined in passed function pointer
+ *
+ * Returns:
+ * pointer to found flashnode connection device object on success
+ * %NULL on failure
+ */
+struct device *
+iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess,
+ void *data,
+ int (*fn)(struct device *dev, void *data))
+{
+ struct device *dev;
+
+ dev = device_find_child(&fnode_sess->dev, data, fn);
+ return dev;
+}
+EXPORT_SYMBOL_GPL(iscsi_find_flashnode_conn);
+
+static int iscsi_iter_destroy_flashnode_conn_fn(struct device *dev, void *data)
+{
+ if (!iscsi_is_flashnode_conn_dev(dev, NULL))
+ return 0;
+
+ return iscsi_destroy_flashnode_conn(iscsi_dev_to_flash_conn(dev));
+}
+
+/**
+ * iscsi_destroy_flashnode_sess - destory flashnode session entry
+ * @fnode_sess: pointer to flashnode session entry to be destroyed
+ *
+ * Deletes the flashnode session entry and all children flashnode connection
+ * entries from sysfs
+ */
+void iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess)
+{
+ int err;
+
+ err = device_for_each_child(&fnode_sess->dev, NULL,
+ iscsi_iter_destroy_flashnode_conn_fn);
+ if (err)
+ pr_err("Could not delete all connections for %s. Error %d.\n",
+ fnode_sess->dev.kobj.name, err);
+
+ device_unregister(&fnode_sess->dev);
+}
+EXPORT_SYMBOL_GPL(iscsi_destroy_flashnode_sess);
+
+static int iscsi_iter_destroy_flashnode_fn(struct device *dev, void *data)
+{
+ if (!iscsi_flashnode_bus_match(dev, NULL))
+ return 0;
+
+ iscsi_destroy_flashnode_sess(iscsi_dev_to_flash_session(dev));
+ return 0;
+}
+
+/**
+ * iscsi_destroy_all_flashnode - destory all flashnode session entries
+ * @shost: pointer to host data
+ *
+ * Destroys all the flashnode session entries and all corresponding children
+ * flashnode connection entries from sysfs
+ */
+void iscsi_destroy_all_flashnode(struct Scsi_Host *shost)
+{
+ device_for_each_child(&shost->shost_gendev, NULL,
+ iscsi_iter_destroy_flashnode_fn);
+}
+EXPORT_SYMBOL_GPL(iscsi_destroy_all_flashnode);
+
+/*
* BSG support
*/
/**
@@ -2092,6 +2776,294 @@ static int iscsi_delete_chap(struct iscsi_transport *transport,
return err;
}
+static const struct {
+ enum iscsi_discovery_parent_type value;
+ char *name;
+} iscsi_discovery_parent_names[] = {
+ {ISCSI_DISC_PARENT_UNKNOWN, "Unknown" },
+ {ISCSI_DISC_PARENT_SENDTGT, "Sendtarget" },
+ {ISCSI_DISC_PARENT_ISNS, "isns" },
+};
+
+char *iscsi_get_discovery_parent_name(int parent_type)
+{
+ int i;
+ char *state = "Unknown!";
+
+ for (i = 0; i < ARRAY_SIZE(iscsi_discovery_parent_names); i++) {
+ if (iscsi_discovery_parent_names[i].value & parent_type) {
+ state = iscsi_discovery_parent_names[i].name;
+ break;
+ }
+ }
+ return state;
+}
+EXPORT_SYMBOL_GPL(iscsi_get_discovery_parent_name);
+
+static int iscsi_set_flashnode_param(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev, uint32_t len)
+{
+ char *data = (char *)ev + sizeof(*ev);
+ struct Scsi_Host *shost;
+ struct iscsi_bus_flash_session *fnode_sess;
+ struct iscsi_bus_flash_conn *fnode_conn;
+ struct device *dev;
+ uint32_t *idx;
+ int err = 0;
+
+ if (!transport->set_flashnode_param) {
+ err = -ENOSYS;
+ goto exit_set_fnode;
+ }
+
+ shost = scsi_host_lookup(ev->u.set_flashnode.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.set_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ idx = &ev->u.set_flashnode.flashnode_idx;
+ fnode_sess = iscsi_get_flashnode_by_index(shost, idx,
+ flashnode_match_index);
+ if (!fnode_sess) {
+ pr_err("%s could not find flashnode %u for host no %u\n",
+ __func__, *idx, ev->u.set_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ dev = iscsi_find_flashnode_conn(fnode_sess, NULL,
+ iscsi_is_flashnode_conn_dev);
+ if (!dev) {
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ fnode_conn = iscsi_dev_to_flash_conn(dev);
+ err = transport->set_flashnode_param(fnode_sess, fnode_conn, data, len);
+
+put_host:
+ scsi_host_put(shost);
+
+exit_set_fnode:
+ return err;
+}
+
+static int iscsi_new_flashnode(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev, uint32_t len)
+{
+ char *data = (char *)ev + sizeof(*ev);
+ struct Scsi_Host *shost;
+ int index;
+ int err = 0;
+
+ if (!transport->new_flashnode) {
+ err = -ENOSYS;
+ goto exit_new_fnode;
+ }
+
+ shost = scsi_host_lookup(ev->u.new_flashnode.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.new_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ index = transport->new_flashnode(shost, data, len);
+
+ if (index >= 0)
+ ev->r.new_flashnode_ret.flashnode_idx = index;
+ else
+ err = -EIO;
+
+put_host:
+ scsi_host_put(shost);
+
+exit_new_fnode:
+ return err;
+}
+
+static int iscsi_del_flashnode(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ struct Scsi_Host *shost;
+ struct iscsi_bus_flash_session *fnode_sess;
+ uint32_t *idx;
+ int err = 0;
+
+ if (!transport->del_flashnode) {
+ err = -ENOSYS;
+ goto exit_del_fnode;
+ }
+
+ shost = scsi_host_lookup(ev->u.del_flashnode.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.del_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ idx = &ev->u.del_flashnode.flashnode_idx;
+ fnode_sess = iscsi_get_flashnode_by_index(shost, idx,
+ flashnode_match_index);
+ if (!fnode_sess) {
+ pr_err("%s could not find flashnode %u for host no %u\n",
+ __func__, *idx, ev->u.del_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ err = transport->del_flashnode(fnode_sess);
+
+put_host:
+ scsi_host_put(shost);
+
+exit_del_fnode:
+ return err;
+}
+
+static int iscsi_login_flashnode(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ struct Scsi_Host *shost;
+ struct iscsi_bus_flash_session *fnode_sess;
+ struct iscsi_bus_flash_conn *fnode_conn;
+ struct device *dev;
+ uint32_t *idx;
+ int err = 0;
+
+ if (!transport->login_flashnode) {
+ err = -ENOSYS;
+ goto exit_login_fnode;
+ }
+
+ shost = scsi_host_lookup(ev->u.login_flashnode.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.login_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ idx = &ev->u.login_flashnode.flashnode_idx;
+ fnode_sess = iscsi_get_flashnode_by_index(shost, idx,
+ flashnode_match_index);
+ if (!fnode_sess) {
+ pr_err("%s could not find flashnode %u for host no %u\n",
+ __func__, *idx, ev->u.login_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ dev = iscsi_find_flashnode_conn(fnode_sess, NULL,
+ iscsi_is_flashnode_conn_dev);
+ if (!dev) {
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ fnode_conn = iscsi_dev_to_flash_conn(dev);
+ err = transport->login_flashnode(fnode_sess, fnode_conn);
+
+put_host:
+ scsi_host_put(shost);
+
+exit_login_fnode:
+ return err;
+}
+
+static int iscsi_logout_flashnode(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ struct Scsi_Host *shost;
+ struct iscsi_bus_flash_session *fnode_sess;
+ struct iscsi_bus_flash_conn *fnode_conn;
+ struct device *dev;
+ uint32_t *idx;
+ int err = 0;
+
+ if (!transport->logout_flashnode) {
+ err = -ENOSYS;
+ goto exit_logout_fnode;
+ }
+
+ shost = scsi_host_lookup(ev->u.logout_flashnode.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.logout_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ idx = &ev->u.logout_flashnode.flashnode_idx;
+ fnode_sess = iscsi_get_flashnode_by_index(shost, idx,
+ flashnode_match_index);
+ if (!fnode_sess) {
+ pr_err("%s could not find flashnode %u for host no %u\n",
+ __func__, *idx, ev->u.logout_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ dev = iscsi_find_flashnode_conn(fnode_sess, NULL,
+ iscsi_is_flashnode_conn_dev);
+ if (!dev) {
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ fnode_conn = iscsi_dev_to_flash_conn(dev);
+
+ err = transport->logout_flashnode(fnode_sess, fnode_conn);
+
+put_host:
+ scsi_host_put(shost);
+
+exit_logout_fnode:
+ return err;
+}
+
+static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ struct Scsi_Host *shost;
+ struct iscsi_cls_session *session;
+ int err = 0;
+
+ if (!transport->logout_flashnode_sid) {
+ err = -ENOSYS;
+ goto exit_logout_sid;
+ }
+
+ shost = scsi_host_lookup(ev->u.logout_flashnode_sid.host_no);
+ if (!shost) {
+ pr_err("%s could not find host no %u\n",
+ __func__, ev->u.logout_flashnode.host_no);
+ err = -ENODEV;
+ goto put_host;
+ }
+
+ session = iscsi_session_lookup(ev->u.logout_flashnode_sid.sid);
+ if (!session) {
+ pr_err("%s could not find session id %u\n",
+ __func__, ev->u.logout_flashnode_sid.sid);
+ err = -EINVAL;
+ goto put_host;
+ }
+
+ err = transport->logout_flashnode_sid(session);
+
+put_host:
+ scsi_host_put(shost);
+
+exit_logout_sid:
+ return err;
+}
+
static int
iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
{
@@ -2246,6 +3218,27 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
case ISCSI_UEVENT_DELETE_CHAP:
err = iscsi_delete_chap(transport, ev);
break;
+ case ISCSI_UEVENT_SET_FLASHNODE_PARAMS:
+ err = iscsi_set_flashnode_param(transport, ev,
+ nlmsg_attrlen(nlh,
+ sizeof(*ev)));
+ break;
+ case ISCSI_UEVENT_NEW_FLASHNODE:
+ err = iscsi_new_flashnode(transport, ev,
+ nlmsg_attrlen(nlh, sizeof(*ev)));
+ break;
+ case ISCSI_UEVENT_DEL_FLASHNODE:
+ err = iscsi_del_flashnode(transport, ev);
+ break;
+ case ISCSI_UEVENT_LOGIN_FLASHNODE:
+ err = iscsi_login_flashnode(transport, ev);
+ break;
+ case ISCSI_UEVENT_LOGOUT_FLASHNODE:
+ err = iscsi_logout_flashnode(transport, ev);
+ break;
+ case ISCSI_UEVENT_LOGOUT_FLASHNODE_SID:
+ err = iscsi_logout_flashnode_sid(transport, ev);
+ break;
default:
err = -ENOSYS;
break;
@@ -2981,10 +3974,14 @@ static __init int iscsi_transport_init(void)
if (err)
goto unregister_conn_class;
+ err = bus_register(&iscsi_flashnode_bus);
+ if (err)
+ goto unregister_session_class;
+
nls = netlink_kernel_create(&init_net, NETLINK_ISCSI, &cfg);
if (!nls) {
err = -ENOBUFS;
- goto unregister_session_class;
+ goto unregister_flashnode_bus;
}
iscsi_eh_timer_workq = create_singlethread_workqueue("iscsi_eh");
@@ -2995,6 +3992,8 @@ static __init int iscsi_transport_init(void)
release_nls:
netlink_kernel_release(nls);
+unregister_flashnode_bus:
+ bus_unregister(&iscsi_flashnode_bus);
unregister_session_class:
transport_class_unregister(&iscsi_session_class);
unregister_conn_class:
@@ -3014,6 +4013,7 @@ static void __exit iscsi_transport_exit(void)
{
destroy_workqueue(iscsi_eh_timer_workq);
netlink_kernel_release(nls);
+ bus_unregister(&iscsi_flashnode_bus);
transport_class_unregister(&iscsi_connection_class);
transport_class_unregister(&iscsi_session_class);
transport_class_unregister(&iscsi_host_class);
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 917741b..f1b0183 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -63,6 +63,12 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_PING = UEVENT_BASE + 22,
ISCSI_UEVENT_GET_CHAP = UEVENT_BASE + 23,
ISCSI_UEVENT_DELETE_CHAP = UEVENT_BASE + 24,
+ ISCSI_UEVENT_SET_FLASHNODE_PARAMS = UEVENT_BASE + 25,
+ ISCSI_UEVENT_NEW_FLASHNODE = UEVENT_BASE + 26,
+ ISCSI_UEVENT_DEL_FLASHNODE = UEVENT_BASE + 27,
+ ISCSI_UEVENT_LOGIN_FLASHNODE = UEVENT_BASE + 28,
+ ISCSI_UEVENT_LOGOUT_FLASHNODE = UEVENT_BASE + 29,
+ ISCSI_UEVENT_LOGOUT_FLASHNODE_SID = UEVENT_BASE + 30,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
@@ -210,6 +216,31 @@ struct iscsi_uevent {
uint32_t host_no;
uint16_t chap_tbl_idx;
} delete_chap;
+ struct msg_set_flashnode_param {
+ uint32_t host_no;
+ uint32_t flashnode_idx;
+ uint32_t count;
+ } set_flashnode;
+ struct msg_new_flashnode {
+ uint32_t host_no;
+ uint32_t len;
+ } new_flashnode;
+ struct msg_del_flashnode {
+ uint32_t host_no;
+ uint32_t flashnode_idx;
+ } del_flashnode;
+ struct msg_login_flashnode {
+ uint32_t host_no;
+ uint32_t flashnode_idx;
+ } login_flashnode;
+ struct msg_logout_flashnode {
+ uint32_t host_no;
+ uint32_t flashnode_idx;
+ } logout_flashnode;
+ struct msg_logout_flashnode_sid {
+ uint32_t host_no;
+ uint32_t sid;
+ } logout_flashnode_sid;
} u;
union {
/* messages k -> u */
@@ -267,6 +298,9 @@ struct iscsi_uevent {
with each ping request */
uint32_t data_size;
} ping_comp;
+ struct msg_new_flashnode_ret {
+ uint32_t flashnode_idx;
+ } new_flashnode_ret;
} r;
} __attribute__ ((aligned (sizeof(uint64_t))));
@@ -274,6 +308,7 @@ enum iscsi_param_type {
ISCSI_PARAM, /* iscsi_param (session, conn, target, LU) */
ISCSI_HOST_PARAM, /* iscsi_host_param */
ISCSI_NET_PARAM, /* iscsi_net_param */
+ ISCSI_FLASHNODE_PARAM, /* iscsi_flashnode_param */
};
struct iscsi_iface_param_info {
@@ -469,6 +504,84 @@ enum iscsi_host_param {
ISCSI_HOST_PARAM_MAX,
};
+/* iSCSI Flash Target params */
+enum iscsi_flashnode_param {
+ ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6,
+ ISCSI_FLASHNODE_PORTAL_TYPE,
+ ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE,
+ ISCSI_FLASHNODE_DISCOVERY_SESS,
+ ISCSI_FLASHNODE_ENTRY_EN,
+ ISCSI_FLASHNODE_HDR_DGST_EN,
+ ISCSI_FLASHNODE_DATA_DGST_EN,
+ ISCSI_FLASHNODE_IMM_DATA_EN,
+ ISCSI_FLASHNODE_INITIAL_R2T_EN,
+ ISCSI_FLASHNODE_DATASEQ_INORDER,
+ ISCSI_FLASHNODE_PDU_INORDER,
+ ISCSI_FLASHNODE_CHAP_AUTH_EN,
+ ISCSI_FLASHNODE_SNACK_REQ_EN,
+ ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN,
+ ISCSI_FLASHNODE_BIDI_CHAP_EN,
+ /* make authentication for discovery sessions optional */
+ ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL,
+ ISCSI_FLASHNODE_ERL,
+ ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT,
+ ISCSI_FLASHNODE_TCP_NAGLE_DISABLE,
+ ISCSI_FLASHNODE_TCP_WSF_DISABLE,
+ ISCSI_FLASHNODE_TCP_TIMER_SCALE,
+ ISCSI_FLASHNODE_TCP_TIMESTAMP_EN,
+ ISCSI_FLASHNODE_IP_FRAG_DISABLE,
+ ISCSI_FLASHNODE_MAX_RECV_DLENGTH,
+ ISCSI_FLASHNODE_MAX_XMIT_DLENGTH,
+ ISCSI_FLASHNODE_FIRST_BURST,
+ ISCSI_FLASHNODE_DEF_TIME2WAIT,
+ ISCSI_FLASHNODE_DEF_TIME2RETAIN,
+ ISCSI_FLASHNODE_MAX_R2T,
+ ISCSI_FLASHNODE_KEEPALIVE_TMO,
+ ISCSI_FLASHNODE_ISID,
+ ISCSI_FLASHNODE_TSID,
+ ISCSI_FLASHNODE_PORT,
+ ISCSI_FLASHNODE_MAX_BURST,
+ ISCSI_FLASHNODE_DEF_TASKMGMT_TMO,
+ ISCSI_FLASHNODE_IPADDR,
+ ISCSI_FLASHNODE_ALIAS,
+ ISCSI_FLASHNODE_REDIRECT_IPADDR,
+ ISCSI_FLASHNODE_MAX_SEGMENT_SIZE,
+ ISCSI_FLASHNODE_LOCAL_PORT,
+ ISCSI_FLASHNODE_IPV4_TOS,
+ ISCSI_FLASHNODE_IPV6_TC,
+ ISCSI_FLASHNODE_IPV6_FLOW_LABEL,
+ ISCSI_FLASHNODE_NAME,
+ ISCSI_FLASHNODE_TPGT,
+ ISCSI_FLASHNODE_LINK_LOCAL_IPV6,
+ ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX,
+ ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE,
+ ISCSI_FLASHNODE_TCP_XMIT_WSF,
+ ISCSI_FLASHNODE_TCP_RECV_WSF,
+ ISCSI_FLASHNODE_CHAP_IN_IDX,
+ ISCSI_FLASHNODE_CHAP_OUT_IDX,
+ ISCSI_FLASHNODE_USERNAME,
+ ISCSI_FLASHNODE_USERNAME_IN,
+ ISCSI_FLASHNODE_PASSWORD,
+ ISCSI_FLASHNODE_PASSWORD_IN,
+ ISCSI_FLASHNODE_STATSN,
+ ISCSI_FLASHNODE_EXP_STATSN,
+ ISCSI_FLASHNODE_IS_BOOT_TGT,
+
+ ISCSI_FLASHNODE_MAX,
+};
+
+struct iscsi_flashnode_param_info {
+ uint32_t len; /* Actual length of the param */
+ uint16_t param; /* iscsi param value */
+ uint8_t value[0]; /* length sized value follows */
+} __packed;
+
+enum iscsi_discovery_parent_type {
+ ISCSI_DISC_PARENT_UNKNOWN = 0x1,
+ ISCSI_DISC_PARENT_SENDTGT = 0x2,
+ ISCSI_DISC_PARENT_ISNS = 0x3,
+};
+
/* iSCSI port Speed */
enum iscsi_port_speed {
ISCSI_PORT_SPEED_UNKNOWN = 0x1,
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 53f0b36..4a58cca 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -39,6 +39,8 @@ struct iscsi_task;
struct sockaddr;
struct iscsi_iface;
struct bsg_job;
+struct iscsi_bus_flash_session;
+struct iscsi_bus_flash_conn;
/**
* struct iscsi_transport - iSCSI Transport template
@@ -150,6 +152,19 @@ struct iscsi_transport {
int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx,
uint32_t *num_entries, char *buf);
int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx);
+ int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
+ int param, char *buf);
+ int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn,
+ void *data, int len);
+ int (*new_flashnode) (struct Scsi_Host *shost, const char *buf,
+ int len);
+ int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess);
+ int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn);
+ int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn);
+ int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess);
};
/*
@@ -286,6 +301,112 @@ struct iscsi_iface {
#define iscsi_iface_to_shost(_iface) \
dev_to_shost(_iface->dev.parent)
+
+struct iscsi_bus_flash_conn {
+ struct list_head conn_list; /* item in connlist */
+ void *dd_data; /* LLD private data */
+ struct iscsi_transport *transport;
+ struct device dev; /* sysfs transport/container device */
+ /* iscsi connection parameters */
+ uint32_t exp_statsn;
+ uint32_t statsn;
+ unsigned max_recv_dlength; /* initiator_max_recv_dsl*/
+ unsigned max_xmit_dlength; /* target_max_recv_dsl */
+ unsigned max_segment_size;
+ unsigned tcp_xmit_wsf;
+ unsigned tcp_recv_wsf;
+ int hdrdgst_en;
+ int datadgst_en;
+ int port;
+ char *ipaddress;
+ char *link_local_ipv6_addr;
+ char *redirect_ipaddr;
+ uint16_t keepalive_timeout;
+ uint16_t local_port;
+ uint8_t snack_req_en;
+ /* tcp timestamp negotiation status */
+ uint8_t tcp_timestamp_stat;
+ uint8_t tcp_nagle_disable;
+ /* tcp window scale factor */
+ uint8_t tcp_wsf_disable;
+ uint8_t tcp_timer_scale;
+ uint8_t tcp_timestamp_en;
+ uint8_t ipv4_tos;
+ uint8_t ipv6_traffic_class;
+ uint8_t ipv6_flow_label;
+ uint8_t fragment_disable;
+ /* Link local IPv6 address is assigned by firmware or driver */
+ uint8_t is_fw_assigned_ipv6;
+};
+
+#define iscsi_dev_to_flash_conn(_dev) \
+ container_of(_dev, struct iscsi_bus_flash_conn, dev)
+
+#define iscsi_flash_conn_to_flash_session(_conn) \
+ iscsi_dev_to_flash_session(_conn->dev.parent)
+
+#define ISID_SIZE 6
+
+struct iscsi_bus_flash_session {
+ struct list_head sess_list; /* item in session_list */
+ struct iscsi_transport *transport;
+ unsigned int target_id;
+ int flash_state; /* persistent or non-persistent */
+ void *dd_data; /* LLD private data */
+ struct device dev; /* sysfs transport/container device */
+ /* iscsi session parameters */
+ unsigned first_burst;
+ unsigned max_burst;
+ unsigned short max_r2t;
+ int default_taskmgmt_timeout;
+ int initial_r2t_en;
+ int imm_data_en;
+ int time2wait;
+ int time2retain;
+ int pdu_inorder_en;
+ int dataseq_inorder_en;
+ int erl;
+ int tpgt;
+ char *username;
+ char *username_in;
+ char *password;
+ char *password_in;
+ char *targetname;
+ char *targetalias;
+ char *portal_type;
+ uint16_t tsid;
+ uint16_t chap_in_idx;
+ uint16_t chap_out_idx;
+ /* index of iSCSI discovery session if the entry is
+ * discovered by iSCSI discovery session
+ */
+ uint16_t discovery_parent_idx;
+ /* indicates if discovery was done through iSNS discovery service
+ * or through sendTarget */
+ uint16_t discovery_parent_type;
+ /* Firmware auto sendtarget discovery disable */
+ uint8_t auto_snd_tgt_disable;
+ uint8_t discovery_sess;
+ /* indicates if this flashnode entry is enabled or disabled */
+ uint8_t entry_state;
+ uint8_t chap_auth_en;
+ /* enables firmware to auto logout the discovery session on discovery
+ * completion
+ */
+ uint8_t discovery_logout_en;
+ uint8_t bidi_chap_en;
+ /* makes authentication for discovery session optional */
+ uint8_t discovery_auth_optional;
+ uint8_t isid[ISID_SIZE];
+ uint8_t is_boot_target;
+};
+
+#define iscsi_dev_to_flash_session(_dev) \
+ container_of(_dev, struct iscsi_bus_flash_session, dev)
+
+#define iscsi_flash_session_to_shost(_session) \
+ dev_to_shost(_session->dev.parent)
+
/*
* session and connection functions that can be used by HW iSCSI LLDs
*/
@@ -330,4 +451,34 @@ extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost);
extern char *iscsi_get_port_state_name(struct Scsi_Host *shost);
extern int iscsi_is_session_dev(const struct device *dev);
+extern char *iscsi_get_discovery_parent_name(int parent_type);
+extern struct device *
+iscsi_find_flashnode(struct Scsi_Host *shost, void *data,
+ int (*fn)(struct device *dev, void *data));
+
+extern struct iscsi_bus_flash_session *
+iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index,
+ struct iscsi_transport *transport, int dd_size);
+
+extern struct iscsi_bus_flash_conn *
+iscsi_create_flashnode_conn(struct Scsi_Host *shost,
+ struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_transport *transport, int dd_size);
+
+extern void
+iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess);
+
+extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost);
+extern int iscsi_flashnode_bus_match(struct device *dev,
+ struct device_driver *drv);
+extern int iscsi_is_flashnode_conn_dev(struct device *dev, void *data);
+
+extern struct device *
+iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data,
+ int (*fn)(struct device *dev, void *data));
+
+extern struct device *
+iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess,
+ void *data,
+ int (*fn)(struct device *dev, void *data));
#endif
--
1.7.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/4] libiscsi: export function iscsi_switch_str_param
2013-03-22 11:41 [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support vikas.chaudhary
2013-03-22 11:41 ` [PATCH 1/4] scsi_transport_iscsi: Add " vikas.chaudhary
@ 2013-03-22 11:41 ` vikas.chaudhary
2013-03-22 11:41 ` [PATCH 3/4] qla4xxx: Add flash node mgmt support vikas.chaudhary
2013-03-23 6:28 ` [PATCH 0/4] qla4xxx: Patches for iSCSI " Mike Christie
3 siblings, 0 replies; 6+ messages in thread
From: vikas.chaudhary @ 2013-03-22 11:41 UTC (permalink / raw)
To: jbottomley, michaelc
Cc: linux-scsi, vikas.chaudhary, lalit.chandivade, ravi.anand,
poornima.vonti, manish.rangankar, Adheer Chandravanshi
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
---
drivers/scsi/libiscsi.c | 3 ++-
include/scsi/libiscsi.h | 1 +
2 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 82c3fd4..d5e5c44 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -3142,7 +3142,7 @@ int iscsi_conn_bind(struct iscsi_cls_session *cls_session,
}
EXPORT_SYMBOL_GPL(iscsi_conn_bind);
-static int iscsi_switch_str_param(char **param, char *new_val_buf)
+int iscsi_switch_str_param(char **param, char *new_val_buf)
{
char *new_val;
@@ -3159,6 +3159,7 @@ static int iscsi_switch_str_param(char **param, char *new_val_buf)
*param = new_val;
return 0;
}
+EXPORT_SYMBOL_GPL(iscsi_switch_str_param);
int iscsi_set_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf, int buflen)
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 6e33386..09c041e 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -427,6 +427,7 @@ extern void iscsi_complete_scsi_task(struct iscsi_task *task,
*/
extern void iscsi_pool_free(struct iscsi_pool *);
extern int iscsi_pool_init(struct iscsi_pool *, int, void ***, int);
+extern int iscsi_switch_str_param(char **, char *);
/*
* inline functions to deal with padding.
--
1.7.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 3/4] qla4xxx: Add flash node mgmt support
2013-03-22 11:41 [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support vikas.chaudhary
2013-03-22 11:41 ` [PATCH 1/4] scsi_transport_iscsi: Add " vikas.chaudhary
2013-03-22 11:41 ` [PATCH 2/4] libiscsi: export function iscsi_switch_str_param vikas.chaudhary
@ 2013-03-22 11:41 ` vikas.chaudhary
2013-03-23 6:28 ` [PATCH 0/4] qla4xxx: Patches for iSCSI " Mike Christie
3 siblings, 0 replies; 6+ messages in thread
From: vikas.chaudhary @ 2013-03-22 11:41 UTC (permalink / raw)
To: jbottomley, michaelc
Cc: linux-scsi, vikas.chaudhary, lalit.chandivade, ravi.anand,
poornima.vonti, manish.rangankar, Adheer Chandravanshi
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
This patch allows iscsiadm to manage iSCSI target information stored on
qla4xxx adapter flash on per host basis.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
---
drivers/scsi/qla4xxx/ql4_def.h | 22 +
drivers/scsi/qla4xxx/ql4_fw.h | 34 +
drivers/scsi/qla4xxx/ql4_glbl.h | 7 +
drivers/scsi/qla4xxx/ql4_mbx.c | 106 +++-
drivers/scsi/qla4xxx/ql4_nx.c | 12 +-
drivers/scsi/qla4xxx/ql4_os.c | 1647 +++++++++++++++++++++++++++++++++++++++
6 files changed, 1824 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 129f5dd..b487b0a 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -159,6 +159,25 @@
#define LSDW(x) ((u32)((u64)(x)))
#define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16))
+#define DEV_TYPE_IPV4 "ipv4"
+#define DEV_TYPE_IPV6 "ipv6"
+
+#define DEV_DB_NON_PERSISTENT 0
+#define DEV_DB_PERSISTENT 1
+
+#define COPY_ISID(dst_isid, src_isid) { \
+ int i, j; \
+ for (i = 0, j = ISID_SIZE - 1; i < ISID_SIZE;) \
+ dst_isid[i++] = src_isid[j--]; \
+}
+
+#define SET_BITVAL(o, n, v) { \
+ if (o) \
+ n |= v; \
+ else \
+ n &= ~v; \
+}
+
/*
* Retry & Timeout Values
*/
@@ -363,6 +382,8 @@ struct ql82xx_hw_data {
uint32_t flt_iscsi_param;
uint32_t flt_region_chap;
uint32_t flt_chap_size;
+ uint32_t flt_region_ddb;
+ uint32_t flt_ddb_size;
};
struct qla4_8xxx_legacy_intr_set {
@@ -501,6 +522,7 @@ struct scsi_qla_host {
#define AF_INIT_DONE 1 /* 0x00000002 */
#define AF_MBOX_COMMAND 2 /* 0x00000004 */
#define AF_MBOX_COMMAND_DONE 3 /* 0x00000008 */
+#define AF_ST_DISCOVERY_IN_PROGRESS 4 /* 0x00000010 */
#define AF_INTERRUPTS_ON 6 /* 0x00000040 */
#define AF_GET_CRASH_RECORD 7 /* 0x00000080 */
#define AF_LINK_UP 8 /* 0x00000100 */
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index ad9d2e2..5945829 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -288,6 +288,8 @@ union external_hw_config_reg {
#define FA_GOLD_RISC_CODE_ADDR_82 0x80000
#define FA_FLASH_ISCSI_CHAP 0x540000
#define FA_FLASH_CHAP_SIZE 0xC0000
+#define FA_FLASH_ISCSI_DDB 0x420000
+#define FA_FLASH_DDB_SIZE 0x080000
/* Flash Description Table */
struct qla_fdt_layout {
@@ -348,6 +350,7 @@ struct qla_flt_header {
#define FLT_REG_BOOT_CODE_82 0x78
#define FLT_REG_ISCSI_PARAM 0x65
#define FLT_REG_ISCSI_CHAP 0x63
+#define FLT_REG_ISCSI_DDB 0x6A
struct qla_flt_region {
uint32_t code;
@@ -779,12 +782,41 @@ struct dev_db_entry {
#define DDB_OPT_IPV6_NULL_LINK_LOCAL 0x800 /* post connection */
#define DDB_OPT_IPV6_FW_DEFINED_LINK_LOCAL 0x800 /* pre connection */
+#define OPT_IS_FW_ASSIGNED_IPV6 11
+#define OPT_IPV6_DEVICE 8
+#define OPT_AUTO_SENDTGTS_DISABLE 6
+#define OPT_DISC_SESSION 4
+#define OPT_ENTRY_STATE 3
uint16_t exec_throttle; /* 02-03 */
uint16_t exec_count; /* 04-05 */
uint16_t res0; /* 06-07 */
uint16_t iscsi_options; /* 08-09 */
+#define ISCSIOPT_HEADER_DIGEST_EN 13
+#define ISCSIOPT_DATA_DIGEST_EN 12
+#define ISCSIOPT_IMMEDIATE_DATA_EN 11
+#define ISCSIOPT_INITIAL_R2T_EN 10
+#define ISCSIOPT_DATA_SEQ_IN_ORDER 9
+#define ISCSIOPT_DATA_PDU_IN_ORDER 8
+#define ISCSIOPT_CHAP_AUTH_EN 7
+#define ISCSIOPT_SNACK_REQ_EN 6
+#define ISCSIOPT_DISCOVERY_LOGOUT_EN 5
+#define ISCSIOPT_BIDI_CHAP_EN 4
+#define ISCSIOPT_DISCOVERY_AUTH_OPTIONAL 3
+#define ISCSIOPT_ERL1 1
+#define ISCSIOPT_ERL0 0
+
uint16_t tcp_options; /* 0A-0B */
+#define TCPOPT_TIMESTAMP_STAT 6
+#define TCPOPT_NAGLE_DISABLE 5
+#define TCPOPT_WSF_DISABLE 4
+#define TCPOPT_TIMER_SCALE3 3
+#define TCPOPT_TIMER_SCALE2 2
+#define TCPOPT_TIMER_SCALE1 1
+#define TCPOPT_TIMESTAMP_EN 0
+
uint16_t ip_options; /* 0C-0D */
+#define IPOPT_FRAGMENT_DISABLE 4
+
uint16_t iscsi_max_rcv_data_seg_len; /* 0E-0F */
#define BYTE_UNITS 512
uint32_t res1; /* 10-13 */
@@ -816,6 +848,8 @@ struct dev_db_entry {
* much RAM */
uint8_t link_local_ipv6_addr[0x10]; /* 1A0-1AF */
uint8_t res5[0x10]; /* 1B0-1BF */
+#define DDB_NO_LINK 0xFFFF
+#define DDB_ISNS 0xFFFD
uint16_t ddb_link; /* 1C0-1C1 */
uint16_t chap_tbl_idx; /* 1C2-1C3 */
uint16_t tgt_portal_grp; /* 1C4-1C5 */
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 22706f6..4a42800 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -191,6 +191,9 @@ int qla4xxx_ping_iocb(struct scsi_qla_host *ha, uint32_t options,
int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
uint32_t status, uint32_t pid,
uint32_t data_size, uint8_t *data);
+int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
+ struct dev_db_entry *fw_ddb_entry,
+ dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index);
/* BSG Functions */
int qla4xxx_bsg_request(struct bsg_job *bsg_job);
@@ -259,6 +262,10 @@ int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha);
void qla4_83xx_disable_pause(struct scsi_qla_host *ha);
void qla4_83xx_enable_mbox_intrs(struct scsi_qla_host *ha);
int qla4_83xx_can_perform_reset(struct scsi_qla_host *ha);
+int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
+ dma_addr_t dma_addr);
+int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
+ char *password, uint16_t chap_index);
extern int ql4xextended_error_logging;
extern int ql4xdontresethba;
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index ce46545..8985997 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1288,8 +1288,8 @@ exit_about_fw:
return status;
}
-static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
- dma_addr_t dma_addr)
+int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
+ dma_addr_t dma_addr)
{
uint32_t mbox_cmd[MBOX_REG_COUNT];
uint32_t mbox_sts[MBOX_REG_COUNT];
@@ -1417,6 +1417,52 @@ exit_bootdb_failed:
return status;
}
+int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
+ struct dev_db_entry *fw_ddb_entry,
+ dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
+{
+ uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ uint32_t dev_db_end_offset;
+ int status = QLA_ERROR;
+
+ memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
+
+ if (is_qla40XX(ha)) {
+ dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ } else {
+ dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
+ (ha->hw.flt_region_ddb << 2);
+ /* flt_ddb_size is DDB table size for both ports
+ * so divide it by 2 to calculate the offset for second port
+ */
+ if (ha->port_num == 1)
+ dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
+ }
+
+ dev_db_end_offset = dev_db_start_offset + (ha->hw.flt_ddb_size / 2);
+ dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
+
+ if (dev_db_start_offset > dev_db_end_offset) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s:Invalid DDB index %d", __func__,
+ ddb_index));
+ goto exit_fdb_failed;
+ }
+
+ if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
+ sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
+ ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash failed\n",
+ ha->host_no, __func__);
+ goto exit_fdb_failed;
+ }
+
+ if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
+ status = QLA_SUCCESS;
+
+exit_fdb_failed:
+ return status;
+}
+
int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
uint16_t idx)
{
@@ -1510,6 +1556,62 @@ exit_set_chap:
return ret;
}
+
+int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
+ char *password, uint16_t chap_index)
+{
+ int rval = QLA_ERROR;
+ struct ql4_chap_table *chap_table = NULL;
+ int max_chap_entries;
+
+ if (!ha->chap_list) {
+ ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
+ rval = QLA_ERROR;
+ goto exit_uni_chap;
+ }
+
+ if (!username || !password) {
+ ql4_printk(KERN_ERR, ha, "No memory for username & secret\n");
+ rval = QLA_ERROR;
+ goto exit_uni_chap;
+ }
+
+ if (is_qla80XX(ha))
+ max_chap_entries = (ha->hw.flt_chap_size / 2) /
+ sizeof(struct ql4_chap_table);
+ else
+ max_chap_entries = MAX_CHAP_ENTRIES_40XX;
+
+ if (chap_index > max_chap_entries) {
+ ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
+ rval = QLA_ERROR;
+ goto exit_uni_chap;
+ }
+
+ mutex_lock(&ha->chap_sem);
+ chap_table = (struct ql4_chap_table *)ha->chap_list + chap_index;
+ if (chap_table->cookie != __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
+ rval = QLA_ERROR;
+ goto exit_unlock_uni_chap;
+ }
+
+ if (!(chap_table->flags & BIT_6)) {
+ ql4_printk(KERN_ERR, ha, "Unidirectional entry not set\n");
+ rval = QLA_ERROR;
+ goto exit_unlock_uni_chap;
+ }
+
+ strncpy(password, chap_table->secret, MAX_CHAP_SECRET_LEN);
+ strncpy(username, chap_table->name, MAX_CHAP_NAME_LEN);
+
+ rval = QLA_SUCCESS;
+
+exit_unlock_uni_chap:
+ mutex_unlock(&ha->chap_sem);
+exit_uni_chap:
+ return rval;
+}
+
/**
* qla4xxx_get_chap_index - Get chap index given username and secret
* @ha: pointer to adapter structure
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 31fac90..5f1dbb7 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -3154,6 +3154,10 @@ qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
hw->flt_region_chap = start;
hw->flt_chap_size = le32_to_cpu(region->size);
break;
+ case FLT_REG_ISCSI_DDB:
+ hw->flt_region_ddb = start;
+ hw->flt_ddb_size = le32_to_cpu(region->size);
+ break;
}
}
goto done;
@@ -3168,13 +3172,17 @@ no_flash_data:
hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
hw->flt_region_chap = FA_FLASH_ISCSI_CHAP >> 2;
hw->flt_chap_size = FA_FLASH_CHAP_SIZE;
+ hw->flt_region_ddb = FA_FLASH_ISCSI_DDB >> 2;
+ hw->flt_ddb_size = FA_FLASH_DDB_SIZE;
done:
DEBUG2(ql4_printk(KERN_INFO, ha,
- "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x\n",
+ "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x chap_size=0x%x ddb=0x%x ddb_size=0x%x\n",
loc, hw->flt_region_flt, hw->flt_region_fdt,
hw->flt_region_boot, hw->flt_region_bootload,
- hw->flt_region_fw, hw->flt_region_chap));
+ hw->flt_region_fw, hw->flt_region_chap,
+ hw->flt_chap_size, hw->flt_region_ddb,
+ hw->flt_ddb_size));
}
static void
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index f3cf04e..497ac68 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -166,6 +166,26 @@ static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
int reason);
+/*
+ * iSCSI Flash DDB sysfs entry points
+ */
+static int
+qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn,
+ void *data, int len);
+static int
+qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
+ int param, char *buf);
+static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
+ int len);
+static int
+qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
+static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn);
+static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn);
+static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
+
static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
QLA82XX_LEGACY_INTR_CONFIG;
@@ -232,6 +252,13 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
.send_ping = qla4xxx_send_ping,
.get_chap = qla4xxx_get_chap_list,
.delete_chap = qla4xxx_delete_chap,
+ .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
+ .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
+ .new_flashnode = qla4xxx_sysfs_ddb_add,
+ .del_flashnode = qla4xxx_sysfs_ddb_delete,
+ .login_flashnode = qla4xxx_sysfs_ddb_login,
+ .logout_flashnode = qla4xxx_sysfs_ddb_logout,
+ .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
};
static struct scsi_transport_template *qla4xxx_scsi_transport;
@@ -376,6 +403,68 @@ static umode_t qla4_attr_is_visible(int param_type, int param)
default:
return 0;
}
+ case ISCSI_FLASHNODE_PARAM:
+ switch (param) {
+ case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
+ case ISCSI_FLASHNODE_PORTAL_TYPE:
+ case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
+ case ISCSI_FLASHNODE_DISCOVERY_SESS:
+ case ISCSI_FLASHNODE_ENTRY_EN:
+ case ISCSI_FLASHNODE_HDR_DGST_EN:
+ case ISCSI_FLASHNODE_DATA_DGST_EN:
+ case ISCSI_FLASHNODE_IMM_DATA_EN:
+ case ISCSI_FLASHNODE_INITIAL_R2T_EN:
+ case ISCSI_FLASHNODE_DATASEQ_INORDER:
+ case ISCSI_FLASHNODE_PDU_INORDER:
+ case ISCSI_FLASHNODE_CHAP_AUTH_EN:
+ case ISCSI_FLASHNODE_SNACK_REQ_EN:
+ case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
+ case ISCSI_FLASHNODE_BIDI_CHAP_EN:
+ case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
+ case ISCSI_FLASHNODE_ERL:
+ case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
+ case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
+ case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
+ case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
+ case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
+ case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
+ case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
+ case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
+ case ISCSI_FLASHNODE_FIRST_BURST:
+ case ISCSI_FLASHNODE_DEF_TIME2WAIT:
+ case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
+ case ISCSI_FLASHNODE_MAX_R2T:
+ case ISCSI_FLASHNODE_KEEPALIVE_TMO:
+ case ISCSI_FLASHNODE_ISID:
+ case ISCSI_FLASHNODE_TSID:
+ case ISCSI_FLASHNODE_PORT:
+ case ISCSI_FLASHNODE_MAX_BURST:
+ case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
+ case ISCSI_FLASHNODE_IPADDR:
+ case ISCSI_FLASHNODE_ALIAS:
+ case ISCSI_FLASHNODE_REDIRECT_IPADDR:
+ case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
+ case ISCSI_FLASHNODE_LOCAL_PORT:
+ case ISCSI_FLASHNODE_IPV4_TOS:
+ case ISCSI_FLASHNODE_IPV6_TC:
+ case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
+ case ISCSI_FLASHNODE_NAME:
+ case ISCSI_FLASHNODE_TPGT:
+ case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
+ case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
+ case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
+ case ISCSI_FLASHNODE_TCP_XMIT_WSF:
+ case ISCSI_FLASHNODE_TCP_RECV_WSF:
+ case ISCSI_FLASHNODE_CHAP_OUT_IDX:
+ case ISCSI_FLASHNODE_USERNAME:
+ case ISCSI_FLASHNODE_PASSWORD:
+ case ISCSI_FLASHNODE_STATSN:
+ case ISCSI_FLASHNODE_EXP_STATSN:
+ case ISCSI_FLASHNODE_IS_BOOT_TGT:
+ return S_IRUGO;
+ default:
+ return 0;
+ }
}
return 0;
@@ -1922,6 +2011,250 @@ static int qla4xxx_task_xmit(struct iscsi_task *task)
return -ENOSYS;
}
+static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
+ struct iscsi_bus_flash_conn *conn,
+ struct dev_db_entry *fw_ddb_entry)
+{
+ unsigned long options = 0;
+ int rc = 0;
+
+ options = le16_to_cpu(fw_ddb_entry->options);
+ conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
+ if (test_bit(OPT_IPV6_DEVICE, &options)) {
+ rc = iscsi_switch_str_param(&sess->portal_type, DEV_TYPE_IPV6);
+ if (rc)
+ goto exit_copy;
+ } else {
+ rc = iscsi_switch_str_param(&sess->portal_type, DEV_TYPE_IPV4);
+ if (rc)
+ goto exit_copy;
+ }
+
+ sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
+ &options);
+ sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
+ sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
+
+ options = le16_to_cpu(fw_ddb_entry->iscsi_options);
+ conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
+ conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
+ sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
+ sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
+ sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
+ &options);
+ sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
+ sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
+ conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
+ sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
+ &options);
+ sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
+ sess->discovery_auth_optional =
+ test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
+ if (test_bit(ISCSIOPT_ERL1, &options))
+ sess->erl |= BIT_1;
+ if (test_bit(ISCSIOPT_ERL0, &options))
+ sess->erl |= BIT_0;
+
+ options = le16_to_cpu(fw_ddb_entry->tcp_options);
+ conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
+ conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
+ conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
+ if (test_bit(TCPOPT_TIMER_SCALE3, &options))
+ conn->tcp_timer_scale |= BIT_3;
+ if (test_bit(TCPOPT_TIMER_SCALE2, &options))
+ conn->tcp_timer_scale |= BIT_2;
+ if (test_bit(TCPOPT_TIMER_SCALE1, &options))
+ conn->tcp_timer_scale |= BIT_1;
+
+ conn->tcp_timer_scale >>= 1;
+ conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
+
+ options = le16_to_cpu(fw_ddb_entry->ip_options);
+ conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
+
+ conn->max_recv_dlength = BYTE_UNITS *
+ le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
+ conn->max_xmit_dlength = BYTE_UNITS *
+ le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
+ sess->first_burst = BYTE_UNITS *
+ le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
+ sess->max_burst = BYTE_UNITS *
+ le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
+ sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
+ sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
+ sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
+ sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
+ conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
+ conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
+ conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
+ conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
+ conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
+ conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
+ conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
+ conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
+ sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
+ sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
+ sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
+ sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
+
+ sess->default_taskmgmt_timeout =
+ le16_to_cpu(fw_ddb_entry->def_timeout);
+ conn->port = le16_to_cpu(fw_ddb_entry->port);
+
+ options = le16_to_cpu(fw_ddb_entry->options);
+ conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
+ if (!conn->ipaddress) {
+ rc = -ENOMEM;
+ goto exit_copy;
+ }
+
+ conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
+ if (!conn->redirect_ipaddr) {
+ rc = -ENOMEM;
+ goto exit_copy;
+ }
+
+ memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
+ memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
+
+ if (test_bit(OPT_IPV6_DEVICE, &options)) {
+ conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
+
+ conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
+ if (!conn->link_local_ipv6_addr) {
+ rc = -ENOMEM;
+ goto exit_copy;
+ }
+
+ memcpy(conn->link_local_ipv6_addr,
+ fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN);
+ } else {
+ conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
+ }
+
+ if (fw_ddb_entry->iscsi_name[0]) {
+ rc = iscsi_switch_str_param(&sess->targetname,
+ (char *)fw_ddb_entry->iscsi_name);
+ if (rc)
+ goto exit_copy;
+ }
+
+ if (fw_ddb_entry->iscsi_alias[0]) {
+ rc = iscsi_switch_str_param(&sess->targetalias,
+ (char *)fw_ddb_entry->iscsi_alias);
+ if (rc)
+ goto exit_copy;
+ }
+
+ COPY_ISID(sess->isid, fw_ddb_entry->isid);
+
+exit_copy:
+ return rc;
+}
+
+static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
+ struct iscsi_bus_flash_conn *conn,
+ struct dev_db_entry *fw_ddb_entry)
+{
+ uint16_t options;
+ int rc = 0;
+
+ options = le16_to_cpu(fw_ddb_entry->options);
+ SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
+ if (!strncmp(sess->portal_type, DEV_TYPE_IPV6, 4))
+ options |= BIT_8;
+ else
+ options &= ~BIT_8;
+
+ SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
+ SET_BITVAL(sess->discovery_sess, options, BIT_4);
+ SET_BITVAL(sess->entry_state, options, BIT_3);
+ fw_ddb_entry->options = cpu_to_le16(options);
+
+ options = le16_to_cpu(fw_ddb_entry->iscsi_options);
+ SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
+ SET_BITVAL(conn->datadgst_en, options, BIT_12);
+ SET_BITVAL(sess->imm_data_en, options, BIT_11);
+ SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
+ SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
+ SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
+ SET_BITVAL(sess->chap_auth_en, options, BIT_7);
+ SET_BITVAL(conn->snack_req_en, options, BIT_6);
+ SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
+ SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
+ SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
+ SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
+ SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
+ fw_ddb_entry->iscsi_options = cpu_to_le16(options);
+
+ options = le16_to_cpu(fw_ddb_entry->tcp_options);
+ SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
+ SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
+ SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
+ SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
+ SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
+ SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
+ SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
+ fw_ddb_entry->tcp_options = cpu_to_le16(options);
+
+ options = le16_to_cpu(fw_ddb_entry->ip_options);
+ SET_BITVAL(conn->fragment_disable, options, BIT_4);
+ fw_ddb_entry->ip_options = cpu_to_le16(options);
+
+ fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
+ fw_ddb_entry->iscsi_max_rcv_data_seg_len =
+ cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
+ fw_ddb_entry->iscsi_max_snd_data_seg_len =
+ cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
+ fw_ddb_entry->iscsi_first_burst_len =
+ cpu_to_le16(sess->first_burst / BYTE_UNITS);
+ fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
+ BYTE_UNITS);
+ fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
+ fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
+ fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
+ fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
+ fw_ddb_entry->tcp_xmt_wsf = cpu_to_le16(conn->tcp_xmit_wsf);
+ fw_ddb_entry->tcp_rcv_wsf = cpu_to_le16(conn->tcp_recv_wsf);
+ fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
+ fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
+ fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
+ fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
+ fw_ddb_entry->stat_sn = cpu_to_le16(conn->statsn);
+ fw_ddb_entry->exp_stat_sn = cpu_to_le16(conn->exp_statsn);
+ fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_type);
+ fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
+ fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
+ fw_ddb_entry->port = cpu_to_le16(conn->port);
+ fw_ddb_entry->def_timeout =
+ cpu_to_le16(sess->default_taskmgmt_timeout);
+
+ if (conn->ipaddress)
+ memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
+ sizeof(fw_ddb_entry->ip_addr));
+
+ if (conn->redirect_ipaddr)
+ memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
+ sizeof(fw_ddb_entry->tgt_addr));
+
+ if (conn->link_local_ipv6_addr)
+ memcpy(fw_ddb_entry->link_local_ipv6_addr,
+ conn->link_local_ipv6_addr,
+ sizeof(fw_ddb_entry->link_local_ipv6_addr));
+
+ if (sess->targetname)
+ memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
+ sizeof(fw_ddb_entry->iscsi_name));
+
+ if (sess->targetalias)
+ memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
+ sizeof(fw_ddb_entry->iscsi_alias));
+
+ COPY_ISID(fw_ddb_entry->isid, sess->isid);
+
+ return rc;
+}
+
static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
struct dev_db_entry *fw_ddb_entry,
struct iscsi_cls_session *cls_sess,
@@ -5062,6 +5395,1315 @@ exit_nt_list:
dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
}
+static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
+ struct list_head *list_nt)
+{
+ struct dev_db_entry *fw_ddb_entry;
+ dma_addr_t fw_ddb_dma;
+ int max_ddbs;
+ int fw_idx_size;
+ int ret;
+ uint32_t idx = 0, next_idx = 0;
+ uint32_t state = 0, conn_err = 0;
+ uint16_t conn_id = 0;
+ struct qla_ddb_index *nt_ddb_idx;
+
+ fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
+ &fw_ddb_dma);
+ if (fw_ddb_entry == NULL) {
+ DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
+ goto exit_new_nt_list;
+ }
+ max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+ MAX_DEV_DB_ENTRIES;
+ fw_idx_size = sizeof(struct qla_ddb_index);
+
+ for (idx = 0; idx < max_ddbs; idx = next_idx) {
+ ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
+ NULL, &next_idx, &state,
+ &conn_err, NULL, &conn_id);
+ if (ret == QLA_ERROR)
+ break;
+
+ /* Check if NT, then add it to list */
+ if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
+ goto continue_next_new_nt;
+
+ if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
+ goto continue_next_new_nt;
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Adding DDB to session = 0x%x\n", idx));
+
+ nt_ddb_idx = vmalloc(fw_idx_size);
+ if (!nt_ddb_idx)
+ break;
+
+ nt_ddb_idx->fw_ddb_idx = idx;
+
+ ret = qla4xxx_is_session_exists(ha, fw_ddb_entry);
+ if (ret == QLA_SUCCESS) {
+ /* free nt_ddb_idx and do not add to list_nt */
+ vfree(nt_ddb_idx);
+ goto continue_next_new_nt;
+ }
+
+ list_add_tail(&nt_ddb_idx->list, list_nt);
+
+ ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
+ idx);
+ if (ret == QLA_ERROR)
+ goto exit_new_nt_list;
+
+continue_next_new_nt:
+ if (next_idx == 0)
+ break;
+ }
+
+exit_new_nt_list:
+ if (fw_ddb_entry)
+ dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
+}
+
+/**
+ * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
+ * @dev: dev associated with the sysfs entry
+ * @data: pointer to flashnode session object
+ *
+ * Returns:
+ * 1: if flashnode entry is non-persistent
+ * 0: if flashnode entry is persistent
+ **/
+static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
+{
+ struct iscsi_bus_flash_session *fnode_sess;
+
+ if (!iscsi_flashnode_bus_match(dev, NULL))
+ return 0;
+
+ fnode_sess = iscsi_dev_to_flash_session(dev);
+
+ return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
+}
+
+/**
+ * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
+ * @ha: pointer to host
+ * @fw_ddb_entry: flash ddb data
+ * @idx: target index
+ * @user: if set then this call is made from userland else from kernel
+ *
+ * Returns:
+ * On sucess: QLA_SUCCESS
+ * On failure: QLA_ERROR
+ *
+ * This create separate sysfs entries for session and connection attributes of
+ * the given fw ddb entry.
+ * If this is invoked as a result of a userspace call then the entry is marked
+ * as nonpersistent using flash_state field.
+ **/
+int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
+ struct dev_db_entry *fw_ddb_entry,
+ uint16_t *idx, int user)
+{
+ struct iscsi_bus_flash_session *fnode_sess = NULL;
+ struct iscsi_bus_flash_conn *fnode_conn = NULL;
+ int rc = QLA_ERROR;
+
+ fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
+ &qla4xxx_iscsi_transport, 0);
+ if (!fnode_sess) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
+ __func__, *idx, ha->host_no);
+ goto exit_tgt_create;
+ }
+
+ fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
+ &qla4xxx_iscsi_transport, 0);
+ if (!fnode_conn) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
+ __func__, *idx, ha->host_no);
+ goto free_sess;
+ }
+
+ if (user) {
+ fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
+ } else {
+ fnode_sess->flash_state = DEV_DB_PERSISTENT;
+
+ if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
+ fnode_sess->is_boot_target = 1;
+ else
+ fnode_sess->is_boot_target = 0;
+ }
+
+ rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
+ fw_ddb_entry);
+
+ ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
+ __func__, fnode_sess->dev.kobj.name);
+
+ ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
+ __func__, fnode_conn->dev.kobj.name);
+
+ return QLA_SUCCESS;
+
+free_sess:
+ iscsi_destroy_flashnode_sess(fnode_sess);
+
+exit_tgt_create:
+ return QLA_ERROR;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
+ * @shost: pointer to host
+ * @buf: type of ddb entry (ipv4/ipv6)
+ * @len: length of buf
+ *
+ * This creates new ddb entry in the flash by finding first free index and
+ * storing default ddb there. And then create sysfs entry for the new ddb entry.
+ **/
+static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
+ int len)
+{
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ struct device *dev;
+ uint16_t idx = 0;
+ uint16_t max_ddbs = 0;
+ uint32_t options = 0;
+ uint32_t rval = QLA_ERROR;
+
+ if (strncasecmp(DEV_TYPE_IPV4, buf, 4) &&
+ strncasecmp(DEV_TYPE_IPV6, buf, 4)) {
+ DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
+ __func__));
+ goto exit_ddb_add;
+ }
+
+ max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+ MAX_DEV_DB_ENTRIES;
+
+ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ goto exit_ddb_add;
+ }
+
+ dev = iscsi_find_flashnode_sess(ha->host, NULL,
+ qla4xxx_sysfs_ddb_is_non_persistent);
+ if (dev) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: A non-persistent entry %s found\n",
+ __func__, dev->kobj.name);
+ goto exit_ddb_add;
+ }
+
+ for (idx = 0; idx < max_ddbs; idx++) {
+ if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
+ fw_ddb_entry_dma, idx))
+ break;
+ }
+
+ if (idx == max_ddbs)
+ goto exit_ddb_add;
+
+ if (!strncasecmp("ipv6", buf, 4))
+ options |= IPV6_DEFAULT_DDB_ENTRY;
+
+ rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
+ if (rval == QLA_ERROR)
+ goto exit_ddb_add;
+
+ rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
+
+exit_ddb_add:
+ if (fw_ddb_entry)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ fw_ddb_entry, fw_ddb_entry_dma);
+ if (rval == QLA_SUCCESS)
+ return idx;
+ else
+ return -EIO;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
+ * @fnode_sess: pointer to session attrs of flash ddb entry
+ * @fnode_conn: pointer to connection attrs of flash ddb entry
+ *
+ * This writes the contents of target ddb buffer to Flash with a valid cookie
+ * value in order to make the ddb entry persistent.
+ **/
+static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn)
+{
+ struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ uint32_t options = 0;
+ int rval = 0;
+
+ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ rval = -ENOMEM;
+ goto exit_ddb_apply;
+ }
+
+ if (!strncasecmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ options |= IPV6_DEFAULT_DDB_ENTRY;
+
+ rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
+ if (rval == QLA_ERROR)
+ goto exit_ddb_apply;
+
+ dev_db_start_offset += (fnode_sess->target_id *
+ sizeof(*fw_ddb_entry));
+
+ qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
+ fw_ddb_entry->cookie = DDB_VALID_COOKIE;
+
+ rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
+ sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
+
+ if (rval == QLA_SUCCESS) {
+ fnode_sess->flash_state = DEV_DB_PERSISTENT;
+ ql4_printk(KERN_INFO, ha,
+ "%s: flash node %u of host %lu written to flash\n",
+ __func__, fnode_sess->target_id, ha->host_no);
+ } else {
+ rval = -EIO;
+ ql4_printk(KERN_ERR, ha,
+ "%s: Error while writing flash node %u of host %lu to flash\n",
+ __func__, fnode_sess->target_id, ha->host_no);
+ }
+
+exit_ddb_apply:
+ if (fw_ddb_entry)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ fw_ddb_entry, fw_ddb_entry_dma);
+ return rval;
+}
+
+static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
+ struct dev_db_entry *fw_ddb_entry,
+ uint16_t idx)
+{
+ struct dev_db_entry *ddb_entry = NULL;
+ dma_addr_t ddb_entry_dma;
+ unsigned long wtime;
+ uint32_t mbx_sts = 0;
+ uint32_t state = 0, conn_err = 0;
+ uint16_t tmo = 0;
+ int ret = 0;
+
+ ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
+ &ddb_entry_dma, GFP_KERNEL);
+ if (!ddb_entry) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ return QLA_ERROR;
+ }
+
+ memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
+
+ ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
+ if (ret != QLA_SUCCESS) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to set ddb entry for index %d\n",
+ __func__, idx));
+ goto exit_ddb_conn_open;
+ }
+
+ qla4xxx_conn_open(ha, idx);
+
+ /* To ensure that sendtargets is done, wait for at least 12 secs */
+ tmo = ((ha->def_timeout > LOGIN_TOV) &&
+ (ha->def_timeout < LOGIN_TOV * 10) ?
+ ha->def_timeout : LOGIN_TOV);
+
+ DEBUG2(ql4_printk(KERN_INFO, ha,
+ "Default time to wait for login to ddb %d\n", tmo));
+
+ wtime = jiffies + (HZ * tmo);
+ do {
+ ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
+ NULL, &state, &conn_err, NULL,
+ NULL);
+ if (ret == QLA_ERROR)
+ continue;
+
+ if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
+ state == DDB_DS_SESSION_FAILED)
+ break;
+
+ schedule_timeout_uninterruptible(HZ / 10);
+ } while (time_after(wtime, jiffies));
+
+exit_ddb_conn_open:
+ if (ddb_entry)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
+ ddb_entry, ddb_entry_dma);
+ return ret;
+}
+
+static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
+ struct dev_db_entry *fw_ddb_entry)
+{
+ struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
+ struct list_head list_nt;
+ uint16_t ddb_index;
+ int ret = 0;
+
+ if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
+ ql4_printk(KERN_WARNING, ha,
+ "%s: A discovery already in progress!\n", __func__);
+ return QLA_ERROR;
+ }
+
+ INIT_LIST_HEAD(&list_nt);
+
+ set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
+
+ ret = qla4xxx_get_ddb_index(ha, &ddb_index);
+ if (ret == QLA_ERROR)
+ goto exit_login_st_clr_bit;
+
+ ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
+ if (ret == QLA_ERROR)
+ goto exit_login_st;
+
+ qla4xxx_build_new_nt_list(ha, &list_nt);
+
+ list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
+ list_del_init(&ddb_idx->list);
+ qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
+ vfree(ddb_idx);
+ }
+
+exit_login_st:
+ if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
+ ql4_printk(KERN_ERR, ha,
+ "Unable to clear DDB index = 0x%x\n", ddb_index);
+ }
+
+ clear_bit(ddb_index, ha->ddb_idx_map);
+
+exit_login_st_clr_bit:
+ clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
+ return ret;
+}
+
+static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
+ struct dev_db_entry *fw_ddb_entry,
+ uint16_t idx)
+{
+ int ret = QLA_ERROR;
+
+ ret = qla4xxx_is_session_exists(ha, fw_ddb_entry);
+ if (ret != QLA_SUCCESS)
+ ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
+ idx);
+ else
+ ret = -EPERM;
+
+ return ret;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_login - Login to the specified target
+ * @fnode_sess: pointer to session attrs of flash ddb entry
+ * @fnode_conn: pointer to connection attrs of flash ddb entry
+ *
+ * This logs in to the specified target
+ **/
+static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn)
+{
+ struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ uint32_t options = 0;
+ int ret = 0;
+
+ if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: Target info is not persistent\n", __func__);
+ ret = -EIO;
+ goto exit_ddb_login;
+ }
+
+ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ ret = -ENOMEM;
+ goto exit_ddb_login;
+ }
+
+ if (!strncasecmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ options |= IPV6_DEFAULT_DDB_ENTRY;
+
+ ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
+ if (ret == QLA_ERROR)
+ goto exit_ddb_login;
+
+ qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
+ fw_ddb_entry->cookie = DDB_VALID_COOKIE;
+
+ if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
+ ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry);
+ else
+ ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
+ fnode_sess->target_id);
+
+ if (ret > 0)
+ ret = -EIO;
+
+exit_ddb_login:
+ if (fw_ddb_entry)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ fw_ddb_entry, fw_ddb_entry_dma);
+ return ret;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
+ * @cls_sess: pointer to session to be logged out
+ *
+ * This performs session log out from the specified target
+ **/
+static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
+{
+ struct iscsi_session *sess;
+ struct ddb_entry *ddb_entry = NULL;
+ struct scsi_qla_host *ha;
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ unsigned long flags;
+ unsigned long wtime;
+ uint32_t ddb_state;
+ int options;
+ int ret = 0;
+
+ sess = cls_sess->dd_data;
+ ddb_entry = sess->dd_data;
+ ha = ddb_entry->ha;
+
+ if (ddb_entry->ddb_type != FLASH_DDB) {
+ ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
+ __func__);
+ ret = -ENXIO;
+ goto exit_ddb_logout;
+ }
+
+ options = LOGOUT_OPTION_CLOSE_SESSION;
+ if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
+ ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
+ ret = -EIO;
+ goto exit_ddb_logout;
+ }
+
+ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n", __func__);
+ ret = -ENOMEM;
+ goto exit_ddb_logout;
+ }
+
+ wtime = jiffies + (HZ * LOGOUT_TOV);
+ do {
+ ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
+ fw_ddb_entry, fw_ddb_entry_dma,
+ NULL, NULL, &ddb_state, NULL,
+ NULL, NULL);
+ if (ret == QLA_ERROR)
+ goto ddb_logout_clr_sess;
+
+ if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
+ (ddb_state == DDB_DS_SESSION_FAILED))
+ goto ddb_logout_clr_sess;
+
+ schedule_timeout_uninterruptible(HZ);
+ } while ((time_after(wtime, jiffies)));
+
+ddb_logout_clr_sess:
+ qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
+ /*
+ * we have decremented the reference count of the driver
+ * when we setup the session to have the driver unload
+ * to be seamless without actually destroying the
+ * session
+ **/
+ try_module_get(qla4xxx_iscsi_transport.owner);
+ iscsi_destroy_endpoint(ddb_entry->conn->ep);
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ qla4xxx_free_ddb(ha, ddb_entry);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ iscsi_session_teardown(ddb_entry->sess);
+
+ ret = QLA_SUCCESS;
+
+exit_ddb_logout:
+ if (fw_ddb_entry)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+ fw_ddb_entry, fw_ddb_entry_dma);
+ return ret;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_logout - Logout from the specified target
+ * @fnode_sess: pointer to session attrs of flash ddb entry
+ * @fnode_conn: pointer to connection attrs of flash ddb entry
+ *
+ * This performs log out from the specified target
+ **/
+static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn)
+{
+ struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct ql4_tuple_ddb *flash_tddb = NULL;
+ struct ql4_tuple_ddb *tmp_tddb = NULL;
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ struct ddb_entry *ddb_entry = NULL;
+ dma_addr_t fw_ddb_dma;
+ uint32_t next_idx = 0;
+ uint32_t state = 0, conn_err = 0;
+ uint16_t conn_id = 0;
+ int idx, index;
+ int status, ret = 0;
+
+ fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
+ &fw_ddb_dma);
+ if (fw_ddb_entry == NULL) {
+ ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
+ ret = -ENOMEM;
+ goto exit_ddb_logout;
+ }
+
+ flash_tddb = vzalloc(sizeof(*flash_tddb));
+ if (!flash_tddb) {
+ ql4_printk(KERN_WARNING, ha,
+ "%s:Memory Allocation failed.\n", __func__);
+ ret = -ENOMEM;
+ goto exit_ddb_logout;
+ }
+
+ tmp_tddb = vzalloc(sizeof(*tmp_tddb));
+ if (!tmp_tddb) {
+ ql4_printk(KERN_WARNING, ha,
+ "%s:Memory Allocation failed.\n", __func__);
+ ret = -ENOMEM;
+ goto exit_ddb_logout;
+ }
+
+ if (!fnode_sess->targetname) {
+ ql4_printk(KERN_ERR, ha,
+ "%s:Cannot logout from SendTarget entry\n",
+ __func__);
+ ret = -EPERM;
+ goto exit_ddb_logout;
+ }
+
+ if (fnode_sess->is_boot_target) {
+ ql4_printk(KERN_ERR, ha,
+ "%s: Logout from boot target entry is not permitted.\n",
+ __func__);
+ ret = -EPERM;
+ goto exit_ddb_logout;
+ }
+
+ strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
+ ISCSI_NAME_SIZE);
+
+ if (!strncmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
+ else
+ sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
+
+ flash_tddb->tpgt = fnode_sess->tpgt;
+ flash_tddb->port = fnode_conn->port;
+
+ COPY_ISID(flash_tddb->isid, fnode_sess->isid);
+
+ for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
+ ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+ if (ddb_entry == NULL)
+ continue;
+
+ if (ddb_entry->ddb_type != FLASH_DDB)
+ continue;
+
+ index = ddb_entry->sess->target_id;
+ status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
+ fw_ddb_dma, NULL, &next_idx,
+ &state, &conn_err, NULL,
+ &conn_id);
+ if (status == QLA_ERROR) {
+ ret = -ENOMEM;
+ break;
+ }
+
+ qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
+
+ status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
+ true);
+ if (status == QLA_SUCCESS) {
+ ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
+ break;
+ }
+ }
+
+ if (idx == MAX_DDB_ENTRIES)
+ ret = -ESRCH;
+
+exit_ddb_logout:
+ if (flash_tddb)
+ vfree(flash_tddb);
+ if (tmp_tddb)
+ vfree(tmp_tddb);
+ if (fw_ddb_entry)
+ dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
+
+ return ret;
+}
+
+static int
+qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
+ int param, char *buf)
+{
+ struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct iscsi_bus_flash_conn *fnode_conn;
+ struct ql4_chap_table chap_tbl;
+ struct device *dev;
+ int parent_type, parent_index = 0xffff;
+ int rc = 0;
+
+ dev = iscsi_find_flashnode_conn(fnode_sess, NULL,
+ iscsi_is_flashnode_conn_dev);
+ if (!dev)
+ return -EIO;
+
+ fnode_conn = iscsi_dev_to_flash_conn(dev);
+
+ switch (param) {
+ case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
+ rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
+ break;
+ case ISCSI_FLASHNODE_PORTAL_TYPE:
+ rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
+ break;
+ case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
+ rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_SESS:
+ rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
+ break;
+ case ISCSI_FLASHNODE_ENTRY_EN:
+ rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
+ break;
+ case ISCSI_FLASHNODE_HDR_DGST_EN:
+ rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
+ break;
+ case ISCSI_FLASHNODE_DATA_DGST_EN:
+ rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
+ break;
+ case ISCSI_FLASHNODE_IMM_DATA_EN:
+ rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
+ break;
+ case ISCSI_FLASHNODE_INITIAL_R2T_EN:
+ rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
+ break;
+ case ISCSI_FLASHNODE_DATASEQ_INORDER:
+ rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
+ break;
+ case ISCSI_FLASHNODE_PDU_INORDER:
+ rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
+ break;
+ case ISCSI_FLASHNODE_CHAP_AUTH_EN:
+ rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
+ break;
+ case ISCSI_FLASHNODE_SNACK_REQ_EN:
+ rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
+ rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
+ break;
+ case ISCSI_FLASHNODE_BIDI_CHAP_EN:
+ rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
+ rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
+ break;
+ case ISCSI_FLASHNODE_ERL:
+ rc = sprintf(buf, "%u\n", fnode_sess->erl);
+ break;
+ case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
+ break;
+ case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
+ break;
+ case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
+ break;
+ case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
+ break;
+ case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
+ break;
+ case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
+ rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
+ break;
+ case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
+ rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
+ break;
+ case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
+ rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
+ break;
+ case ISCSI_FLASHNODE_FIRST_BURST:
+ rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
+ break;
+ case ISCSI_FLASHNODE_DEF_TIME2WAIT:
+ rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
+ break;
+ case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
+ rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
+ break;
+ case ISCSI_FLASHNODE_MAX_R2T:
+ rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
+ break;
+ case ISCSI_FLASHNODE_KEEPALIVE_TMO:
+ rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
+ break;
+ case ISCSI_FLASHNODE_ISID:
+ rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
+ fnode_sess->isid[0], fnode_sess->isid[1],
+ fnode_sess->isid[2], fnode_sess->isid[3],
+ fnode_sess->isid[4], fnode_sess->isid[5]);
+ break;
+ case ISCSI_FLASHNODE_TSID:
+ rc = sprintf(buf, "%u\n", fnode_sess->tsid);
+ break;
+ case ISCSI_FLASHNODE_PORT:
+ rc = sprintf(buf, "%d\n", fnode_conn->port);
+ break;
+ case ISCSI_FLASHNODE_MAX_BURST:
+ rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
+ break;
+ case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
+ rc = sprintf(buf, "%u\n",
+ fnode_sess->default_taskmgmt_timeout);
+ break;
+ case ISCSI_FLASHNODE_IPADDR:
+ if (!strncmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
+ else
+ rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
+ break;
+ case ISCSI_FLASHNODE_ALIAS:
+ if (fnode_sess->targetalias)
+ rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
+ else
+ rc = sprintf(buf, "\n");
+ break;
+ case ISCSI_FLASHNODE_REDIRECT_IPADDR:
+ if (!strncmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ rc = sprintf(buf, "%pI6\n",
+ fnode_conn->redirect_ipaddr);
+ else
+ rc = sprintf(buf, "%pI4\n",
+ fnode_conn->redirect_ipaddr);
+ break;
+ case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
+ rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
+ break;
+ case ISCSI_FLASHNODE_LOCAL_PORT:
+ rc = sprintf(buf, "%u\n", fnode_conn->local_port);
+ break;
+ case ISCSI_FLASHNODE_IPV4_TOS:
+ rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
+ break;
+ case ISCSI_FLASHNODE_IPV6_TC:
+ if (!strncmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ rc = sprintf(buf, "%u\n",
+ fnode_conn->ipv6_traffic_class);
+ else
+ rc = sprintf(buf, "\n");
+ break;
+ case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
+ rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
+ break;
+ case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
+ if (!strncmp(fnode_sess->portal_type, DEV_TYPE_IPV6, 4))
+ rc = sprintf(buf, "%pI6\n",
+ fnode_conn->link_local_ipv6_addr);
+ else
+ rc = sprintf(buf, "\n");
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
+ if ((fnode_sess->discovery_parent_idx) >= 0 &&
+ (fnode_sess->discovery_parent_idx < MAX_DDB_ENTRIES))
+ parent_index = fnode_sess->discovery_parent_idx;
+
+ rc = sprintf(buf, "%u\n", parent_index);
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
+ if (fnode_sess->discovery_parent_type == DDB_ISNS)
+ parent_type = ISCSI_DISC_PARENT_ISNS;
+ else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
+ parent_type = ISCSI_DISC_PARENT_UNKNOWN;
+ else if (fnode_sess->discovery_parent_type >= 0 &&
+ fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
+ parent_type = ISCSI_DISC_PARENT_SENDTGT;
+ else
+ parent_type = ISCSI_DISC_PARENT_UNKNOWN;
+
+ rc = sprintf(buf, "%s\n",
+ iscsi_get_discovery_parent_name(parent_type));
+ break;
+ case ISCSI_FLASHNODE_NAME:
+ if (fnode_sess->targetname)
+ rc = sprintf(buf, "%s\n", fnode_sess->targetname);
+ else
+ rc = sprintf(buf, "\n");
+ break;
+ case ISCSI_FLASHNODE_TPGT:
+ rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
+ break;
+ case ISCSI_FLASHNODE_TCP_XMIT_WSF:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
+ break;
+ case ISCSI_FLASHNODE_TCP_RECV_WSF:
+ rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
+ break;
+ case ISCSI_FLASHNODE_CHAP_OUT_IDX:
+ rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
+ break;
+ case ISCSI_FLASHNODE_USERNAME:
+ if (fnode_sess->chap_auth_en) {
+ qla4xxx_get_uni_chap_at_index(ha,
+ chap_tbl.name,
+ chap_tbl.secret,
+ fnode_sess->chap_out_idx);
+ rc = sprintf(buf, "%s\n", chap_tbl.name);
+ } else {
+ rc = sprintf(buf, "\n");
+ }
+ break;
+ case ISCSI_FLASHNODE_PASSWORD:
+ if (fnode_sess->chap_auth_en) {
+ qla4xxx_get_uni_chap_at_index(ha,
+ chap_tbl.name,
+ chap_tbl.secret,
+ fnode_sess->chap_out_idx);
+ rc = sprintf(buf, "%s\n", chap_tbl.secret);
+ } else {
+ rc = sprintf(buf, "\n");
+ }
+ break;
+ case ISCSI_FLASHNODE_STATSN:
+ rc = sprintf(buf, "%u\n", fnode_conn->statsn);
+ break;
+ case ISCSI_FLASHNODE_EXP_STATSN:
+ rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
+ break;
+ case ISCSI_FLASHNODE_IS_BOOT_TGT:
+ rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
+ break;
+ default:
+ rc = -ENOSYS;
+ break;
+ }
+ return rc;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
+ * @fnode_sess: pointer to session attrs of flash ddb entry
+ * @fnode_conn: pointer to connection attrs of flash ddb entry
+ * @data: Parameters and their values to update
+ * @len: len of data
+ *
+ * This sets the parameter of flash ddb entry and writes them to flash
+ **/
+static int
+qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
+ struct iscsi_bus_flash_conn *fnode_conn,
+ void *data, int len)
+{
+ struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ struct iscsi_flashnode_param_info *fnode_param;
+ struct nlattr *attr;
+ int rc = QLA_ERROR;
+ uint32_t rem = len;
+
+ fw_ddb_entry = kzalloc(sizeof(*fw_ddb_entry), GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate ddb buffer\n",
+ __func__));
+ return -ENOMEM;
+ }
+
+ nla_for_each_attr(attr, data, len, rem) {
+ fnode_param = nla_data(attr);
+
+ switch (fnode_param->param) {
+ case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
+ fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_PORTAL_TYPE:
+ memcpy(fnode_sess->portal_type, fnode_param->value,
+ strlen(fnode_sess->portal_type));
+ break;
+ case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
+ fnode_sess->auto_snd_tgt_disable =
+ fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_SESS:
+ fnode_sess->discovery_sess = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_ENTRY_EN:
+ fnode_sess->entry_state = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_HDR_DGST_EN:
+ fnode_conn->hdrdgst_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_DATA_DGST_EN:
+ fnode_conn->datadgst_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_IMM_DATA_EN:
+ fnode_sess->imm_data_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_INITIAL_R2T_EN:
+ fnode_sess->initial_r2t_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_DATASEQ_INORDER:
+ fnode_sess->dataseq_inorder_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_PDU_INORDER:
+ fnode_sess->pdu_inorder_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_CHAP_AUTH_EN:
+ fnode_sess->chap_auth_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_SNACK_REQ_EN:
+ fnode_conn->snack_req_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
+ fnode_sess->discovery_logout_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_BIDI_CHAP_EN:
+ fnode_sess->bidi_chap_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
+ fnode_sess->discovery_auth_optional =
+ fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_ERL:
+ fnode_sess->erl = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
+ fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
+ fnode_conn->tcp_nagle_disable = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
+ fnode_conn->tcp_wsf_disable = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
+ fnode_conn->tcp_timer_scale = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
+ fnode_conn->tcp_timestamp_en = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
+ fnode_conn->fragment_disable = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
+ fnode_conn->max_recv_dlength =
+ *(unsigned *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
+ fnode_conn->max_xmit_dlength =
+ *(unsigned *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_FIRST_BURST:
+ fnode_sess->first_burst =
+ *(unsigned *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_DEF_TIME2WAIT:
+ fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
+ fnode_sess->time2retain =
+ *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_MAX_R2T:
+ fnode_sess->max_r2t =
+ *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_KEEPALIVE_TMO:
+ fnode_conn->keepalive_timeout =
+ *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_ISID:
+ memcpy(fnode_sess->isid, fnode_param->value,
+ sizeof(fnode_sess->isid));
+ break;
+ case ISCSI_FLASHNODE_TSID:
+ fnode_sess->tsid = *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_PORT:
+ fnode_conn->port = *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_MAX_BURST:
+ fnode_sess->max_burst = *(unsigned *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
+ fnode_sess->default_taskmgmt_timeout =
+ *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_IPADDR:
+ memcpy(fnode_conn->ipaddress, fnode_param->value,
+ IPv6_ADDR_LEN);
+ break;
+ case ISCSI_FLASHNODE_ALIAS:
+ rc = iscsi_switch_str_param(&fnode_sess->targetalias,
+ (char *)fnode_param->value);
+ break;
+ case ISCSI_FLASHNODE_REDIRECT_IPADDR:
+ memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
+ IPv6_ADDR_LEN);
+ break;
+ case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
+ fnode_conn->max_segment_size =
+ *(unsigned *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_LOCAL_PORT:
+ fnode_conn->local_port =
+ *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_IPV4_TOS:
+ fnode_conn->ipv4_tos = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_IPV6_TC:
+ fnode_conn->ipv6_traffic_class = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
+ fnode_conn->ipv6_flow_label = fnode_param->value[0];
+ break;
+ case ISCSI_FLASHNODE_NAME:
+ rc = iscsi_switch_str_param(&fnode_sess->targetname,
+ (char *)fnode_param->value);
+ break;
+ case ISCSI_FLASHNODE_TPGT:
+ fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
+ memcpy(fnode_conn->link_local_ipv6_addr,
+ fnode_param->value, IPv6_ADDR_LEN);
+ break;
+ case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
+ fnode_sess->discovery_parent_type =
+ *(uint16_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_TCP_XMIT_WSF:
+ fnode_conn->tcp_xmit_wsf =
+ *(uint8_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_TCP_RECV_WSF:
+ fnode_conn->tcp_recv_wsf =
+ *(uint8_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_STATSN:
+ fnode_conn->statsn = *(uint32_t *)fnode_param->value;
+ break;
+ case ISCSI_FLASHNODE_EXP_STATSN:
+ fnode_conn->exp_statsn =
+ *(uint32_t *)fnode_param->value;
+ break;
+ default:
+ ql4_printk(KERN_ERR, ha,
+ "%s: No such sysfs attribute\n", __func__);
+ rc = -ENOSYS;
+ goto exit_set_param;
+ }
+ }
+
+ rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
+
+exit_set_param:
+ return rc;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
+ * @fnode_sess: pointer to session attrs of flash ddb entry
+ *
+ * This invalidates the flash ddb entry at the given index
+ **/
+static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
+{
+ struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ uint32_t dev_db_start_offset;
+ uint32_t dev_db_end_offset;
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ uint16_t *ddb_cookie = NULL;
+ int target_id;
+ int rc = 0;
+
+ if (!fnode_sess) {
+ rc = -EINVAL;
+ goto exit_ddb_del;
+ }
+
+ if (fnode_sess->is_boot_target) {
+ rc = -EPERM;
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Deletion of boot target entry is not permitted.\n",
+ __func__));
+ goto exit_ddb_del;
+ }
+
+ if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
+ goto sysfs_ddb_del;
+
+ ddb_cookie = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_cookie),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!ddb_cookie) {
+ rc = -ENOMEM;
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ goto exit_ddb_del;
+ }
+
+ if (is_qla40XX(ha)) {
+ dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ } else {
+ dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
+ (ha->hw.flt_region_ddb << 2);
+ /* flt_ddb_size is DDB table size for both ports
+ * so divide it by 2 to calculate the offset for second port
+ */
+ if (ha->port_num == 1)
+ dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
+ }
+
+ dev_db_end_offset = dev_db_start_offset + (ha->hw.flt_ddb_size / 2);
+ dev_db_start_offset += (fnode_sess->target_id * sizeof(*fw_ddb_entry));
+ dev_db_start_offset += (void *)&(fw_ddb_entry->cookie) -
+ (void *)fw_ddb_entry;
+
+ DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
+ __func__, dev_db_start_offset, dev_db_end_offset));
+
+ if (dev_db_start_offset > dev_db_end_offset) {
+ rc = -EIO;
+ DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
+ __func__, fnode_sess->target_id));
+ goto exit_ddb_del;
+ }
+
+ /* invalidate the cookie */
+ *ddb_cookie = 0xFFEE;
+ qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
+ sizeof(*ddb_cookie), FLASH_OPT_RMW_COMMIT);
+
+sysfs_ddb_del:
+ target_id = fnode_sess->target_id;
+ iscsi_destroy_flashnode_sess(fnode_sess);
+ ql4_printk(KERN_INFO, ha,
+ "%s: session and conn entries for flashnode %u of host %lu deleted\n",
+ __func__, target_id, ha->host_no);
+exit_ddb_del:
+ if (ddb_cookie)
+ dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_cookie),
+ ddb_cookie, fw_ddb_entry_dma);
+ return rc;
+}
+
+/**
+ * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
+ * @ha: pointer to adapter structure
+ *
+ * Export the firmware DDB for all send targets and normal targets to sysfs.
+ **/
+static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
+{
+ struct dev_db_entry *fw_ddb_entry = NULL;
+ dma_addr_t fw_ddb_entry_dma;
+ uint16_t max_ddbs;
+ uint16_t idx = 0;
+ int ret = QLA_SUCCESS;
+
+ fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
+ sizeof(*fw_ddb_entry),
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!fw_ddb_entry) {
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ return -ENOMEM;
+ }
+
+ max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+ MAX_DEV_DB_ENTRIES;
+
+ for (idx = 0; idx < max_ddbs; idx++) {
+ if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
+ idx))
+ continue;
+
+ ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
+ if (ret) {
+ ret = -EIO;
+ break;
+ }
+ }
+
+ dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
+ fw_ddb_entry_dma);
+
+ return ret;
+}
+
+static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
+{
+ iscsi_destroy_all_flashnode(ha->host);
+}
+
/**
* qla4xxx_build_ddb_list - Build ddb list and setup sessions
* @ha: pointer to adapter structure
@@ -5452,6 +7094,10 @@ skip_retry_init:
ql4_printk(KERN_ERR, ha,
"%s: No iSCSI boot target configured\n", __func__);
+ if (qla4xxx_sysfs_ddb_export(ha))
+ ql4_printk(KERN_ERR, ha,
+ "%s: Error exporting ddb to sysfs\n", __func__);
+
/* Perform the build ddb list and login to each */
qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
@@ -5577,6 +7223,7 @@ static void qla4xxx_remove_adapter(struct pci_dev *pdev)
qla4xxx_destroy_fw_ddb_session(ha);
qla4_8xxx_free_sysfs_attr(ha);
+ qla4xxx_sysfs_ddb_remove(ha);
scsi_remove_host(ha->host);
qla4xxx_free_adapter(ha);
--
1.7.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support
2013-03-22 11:41 [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support vikas.chaudhary
` (2 preceding siblings ...)
2013-03-22 11:41 ` [PATCH 3/4] qla4xxx: Add flash node mgmt support vikas.chaudhary
@ 2013-03-23 6:28 ` Mike Christie
2013-03-25 12:29 ` Vikas Chaudhary
3 siblings, 1 reply; 6+ messages in thread
From: Mike Christie @ 2013-03-23 6:28 UTC (permalink / raw)
To: vikas.chaudhary
Cc: jbottomley, linux-scsi, lalit.chandivade, ravi.anand,
poornima.vonti, manish.rangankar
On 03/22/2013 06:41 AM, vikas.chaudhary@qlogic.com wrote:
> From: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
>
> James,
>
> Following patches allows iscsiadm to manage iSCSI target information
> stored on adapter flash on per host basis and and perform various
> operations like add, delete, login, logout, and update the target
> information.
>
> Please apply these patches to the scsi tree "misc" branch at your
> earliest convenience.
>
> Adheer Chandravanshi (3):
> scsi_transport_iscsi: Add flash node mgmt support
> libiscsi: export function iscsi_switch_str_param
> qla4xxx: Add flash node mgmt support
>
In the last patch, the
+#define DEV_TYPE_IPV4 "ipv4"
+#define DEV_TYPE_IPV6 "ipv6"
should probably go in the iscsi class, but if it is ok with James then I
think that can be done in a later cleanup patch since there has been a
lot of work done on these patches already and we should get them in.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support
2013-03-23 6:28 ` [PATCH 0/4] qla4xxx: Patches for iSCSI " Mike Christie
@ 2013-03-25 12:29 ` Vikas Chaudhary
0 siblings, 0 replies; 6+ messages in thread
From: Vikas Chaudhary @ 2013-03-25 12:29 UTC (permalink / raw)
To: Mike Christie
Cc: jbottomley, linux-scsi, Lalit Chandivade, Ravi Anand,
Poornima Vonti, Manish Rangankar, Vikas Chaudhary
-----Original Message-----
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Saturday 23 March 2013 11:58 AM
To: Vikas <vikas.chaudhary@qlogic.com>
Cc: "jbottomley@parallels.com" <jbottomley@parallels.com>, scsi
<linux-scsi@vger.kernel.org>, Lalit Chandivade
<lalit.chandivade@qlogic.com>, Ravi Anand <ravi.anand@qlogic.com>,
Poornima Vonti <poornima.vonti@qlogic.com>, Manish Rangankar
<manish.rangankar@qlogic.com>
Subject: Re: [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support
>On 03/22/2013 06:41 AM, vikas.chaudhary@qlogic.com wrote:
>> From: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
>>
>> James,
>>
>> Following patches allows iscsiadm to manage iSCSI target information
>> stored on adapter flash on per host basis and and perform various
>> operations like add, delete, login, logout, and update the target
>> information.
>>
>> Please apply these patches to the scsi tree "misc" branch at your
>> earliest convenience.
>>
>> Adheer Chandravanshi (3):
>> scsi_transport_iscsi: Add flash node mgmt support
>> libiscsi: export function iscsi_switch_str_param
>> qla4xxx: Add flash node mgmt support
>>
>
>In the last patch, the
>
>+#define DEV_TYPE_IPV4 "ipv4"
>+#define DEV_TYPE_IPV6 "ipv6"
>
>should probably go in the iscsi class, but if it is ok with James then I
>think that can be done in a later cleanup patch since there has been a
>lot of work done on these patches already and we should get them in.
Thanks a lot for feedback.
I am sending following two patches to make above macro generic.
scsi_transport_iscsi: Declare portal type string macros for generic use
qla4xxx: Replace dev type macros with generic portal type macros
Also resending following driver version patch as it never went to the list.
qla4xxx: Update driver version to 5.03.00-k7
Thanks,
Vikas.
________________________________
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-03-25 12:29 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-03-22 11:41 [PATCH 0/4] qla4xxx: Patches for iSCSI flash node mgmt support vikas.chaudhary
2013-03-22 11:41 ` [PATCH 1/4] scsi_transport_iscsi: Add " vikas.chaudhary
2013-03-22 11:41 ` [PATCH 2/4] libiscsi: export function iscsi_switch_str_param vikas.chaudhary
2013-03-22 11:41 ` [PATCH 3/4] qla4xxx: Add flash node mgmt support vikas.chaudhary
2013-03-23 6:28 ` [PATCH 0/4] qla4xxx: Patches for iSCSI " Mike Christie
2013-03-25 12:29 ` Vikas Chaudhary
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