* [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 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