-/*
+/*
* FiberChannel transport specific attributes exported to sysfs.
*
* Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved.
*
* ========
*
- * Copyright (C) 2004-2005 James Smart, Emulex Corporation
+ * Copyright (C) 2004-2007 James Smart, Emulex Corporation
* Rewrite for host, target, device, and remote port attributes,
* statistics, and service functions...
+ * Add vports, etc
*
*/
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h> /* workqueue stuff, HZ */
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_cmnd.h>
+#include <linux/netlink.h>
+#include <net/netlink.h>
+#include <scsi/scsi_netlink_fc.h>
#include "scsi_priv.h"
+#include "scsi_transport_fc_internal.h"
static int fc_queue_work(struct Scsi_Host *, struct work_struct *);
+static void fc_vport_sched_delete(struct work_struct *work);
+
+/*
+ * This is a temporary carrier for creating a vport. It will eventually
+ * be replaced by a real message definition for sgio or netlink.
+ *
+ * fc_vport_identifiers: This set of data contains all elements
+ * to uniquely identify and instantiate a FC virtual port.
+ *
+ * Notes:
+ * symbolic_name: The driver is to append the symbolic_name string data
+ * to the symbolic_node_name data that it generates by default.
+ * the resulting combination should then be registered with the switch.
+ * It is expected that things like Xen may stuff a VM title into
+ * this field.
+ */
+struct fc_vport_identifiers {
+ u64 node_name;
+ u64 port_name;
+ u32 roles;
+ bool disable;
+ enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */
+ char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
+};
+
+static int fc_vport_create(struct Scsi_Host *shost, int channel,
+ struct device *pdev, struct fc_vport_identifiers *ids,
+ struct fc_vport **vport);
/*
* Redefine so that we can have same named attributes in the
* sdev/starget/host objects.
*/
-#define FC_CLASS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
-struct class_device_attribute class_device_attr_##_prefix##_##_name = \
+#define FC_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
+struct device_attribute device_attr_##_prefix##_##_name = \
__ATTR(_name,_mode,_show,_store)
#define fc_enum_name_search(title, table_type, table) \
{ FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" },
{ FC_PORTTYPE_LPORT, "LPort (private loop)" },
{ FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection" },
+ { FC_PORTTYPE_NPIV, "NPIV VPORT" },
};
fc_enum_name_search(port_type, fc_port_type, fc_port_type_names)
#define FC_PORTTYPE_MAX_NAMELEN 50
+/* Reuse fc_port_type enum function for vport_type */
+#define get_fc_vport_type_name get_fc_port_type_name
+
+
+/* Convert fc_host_event_code values to ascii string name */
+static const struct {
+ enum fc_host_event_code value;
+ char *name;
+} fc_host_event_code_names[] = {
+ { FCH_EVT_LIP, "lip" },
+ { FCH_EVT_LINKUP, "link_up" },
+ { FCH_EVT_LINKDOWN, "link_down" },
+ { FCH_EVT_LIPRESET, "lip_reset" },
+ { FCH_EVT_RSCN, "rscn" },
+ { FCH_EVT_ADAPTER_CHANGE, "adapter_chg" },
+ { FCH_EVT_PORT_UNKNOWN, "port_unknown" },
+ { FCH_EVT_PORT_ONLINE, "port_online" },
+ { FCH_EVT_PORT_OFFLINE, "port_offline" },
+ { FCH_EVT_PORT_FABRIC, "port_fabric" },
+ { FCH_EVT_LINK_UNKNOWN, "link_unknown" },
+ { FCH_EVT_VENDOR_UNIQUE, "vendor_unique" },
+};
+fc_enum_name_search(host_event_code, fc_host_event_code,
+ fc_host_event_code_names)
+#define FC_HOST_EVENT_CODE_MAX_NAMELEN 30
+
/* Convert fc_port_state values to ascii string name */
static struct {
#define FC_PORTSTATE_MAX_NAMELEN 20
+/* Convert fc_vport_state values to ascii string name */
+static struct {
+ enum fc_vport_state value;
+ char *name;
+} fc_vport_state_names[] = {
+ { FC_VPORT_UNKNOWN, "Unknown" },
+ { FC_VPORT_ACTIVE, "Active" },
+ { FC_VPORT_DISABLED, "Disabled" },
+ { FC_VPORT_LINKDOWN, "Linkdown" },
+ { FC_VPORT_INITIALIZING, "Initializing" },
+ { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" },
+ { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" },
+ { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" },
+ { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" },
+ { FC_VPORT_FAILED, "VPort Failed" },
+};
+fc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names)
+#define FC_VPORTSTATE_MAX_NAMELEN 24
+
+/* Reuse fc_vport_state enum function for vport_last_state */
+#define get_fc_vport_last_state_name get_fc_vport_state_name
+
+
/* Convert fc_tgtid_binding_type values to ascii string name */
static const struct {
enum fc_tgtid_binding_type value;
{ FC_PORTSPEED_2GBIT, "2 Gbit" },
{ FC_PORTSPEED_4GBIT, "4 Gbit" },
{ FC_PORTSPEED_10GBIT, "10 Gbit" },
+ { FC_PORTSPEED_8GBIT, "8 Gbit" },
+ { FC_PORTSPEED_16GBIT, "16 Gbit" },
{ FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" },
};
fc_bitfield_name_search(port_speed, fc_port_speed_names)
}
-/* Convert FC_RPORT_ROLE bit values to ascii string name */
+/* Convert FC_PORT_ROLE bit values to ascii string name */
static const struct {
u32 value;
char *name;
-} fc_remote_port_role_names[] = {
- { FC_RPORT_ROLE_FCP_TARGET, "FCP Target" },
- { FC_RPORT_ROLE_FCP_INITIATOR, "FCP Initiator" },
- { FC_RPORT_ROLE_IP_PORT, "IP Port" },
+} fc_port_role_names[] = {
+ { FC_PORT_ROLE_FCP_TARGET, "FCP Target" },
+ { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" },
+ { FC_PORT_ROLE_IP_PORT, "IP Port" },
};
-fc_bitfield_name_search(remote_port_roles, fc_remote_port_role_names)
+fc_bitfield_name_search(port_roles, fc_port_role_names)
/*
* Define roles that are specific to port_id. Values are relative to ROLE_MASK.
#define FC_MGMTSRVR_PORTID 0x00000a
-static void fc_timeout_deleted_rport(void *data);
-static void fc_scsi_scan_rport(void *data);
+static void fc_timeout_deleted_rport(struct work_struct *work);
+static void fc_timeout_fail_rport_io(struct work_struct *work);
+static void fc_scsi_scan_rport(struct work_struct *work);
/*
* Attribute counts pre object type...
* Increase these values if you add attributes
*/
#define FC_STARGET_NUM_ATTRS 3
-#define FC_RPORT_NUM_ATTRS 9
-#define FC_HOST_NUM_ATTRS 17
+#define FC_RPORT_NUM_ATTRS 10
+#define FC_VPORT_NUM_ATTRS 9
+#define FC_HOST_NUM_ATTRS 21
struct fc_internal {
struct scsi_transport_template t;
* part of the midlayer. As the remote port is specific to the
* fc transport, we must provide the attribute container.
*/
- struct class_device_attribute private_starget_attrs[
+ struct device_attribute private_starget_attrs[
FC_STARGET_NUM_ATTRS];
- struct class_device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1];
+ struct device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1];
- struct class_device_attribute private_host_attrs[FC_HOST_NUM_ATTRS];
- struct class_device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1];
+ struct device_attribute private_host_attrs[FC_HOST_NUM_ATTRS];
+ struct device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1];
struct transport_container rport_attr_cont;
- struct class_device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS];
- struct class_device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1];
+ struct device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS];
+ struct device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1];
+
+ struct transport_container vport_attr_cont;
+ struct device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS];
+ struct device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1];
};
#define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t)
static int fc_target_setup(struct transport_container *tc, struct device *dev,
- struct class_device *cdev)
+ struct device *cdev)
{
struct scsi_target *starget = to_scsi_target(dev);
struct fc_rport *rport = starget_to_rport(starget);
NULL);
static int fc_host_setup(struct transport_container *tc, struct device *dev,
- struct class_device *cdev)
+ struct device *cdev)
{
struct Scsi_Host *shost = dev_to_shost(dev);
struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
- /*
+ /*
* Set default values easily detected by the midlayer as
* failure cases. The scsi lldd is responsible for initializing
* all transport attributes to valid values per host.
fc_host->supported_classes = FC_COS_UNSPECIFIED;
memset(fc_host->supported_fc4s, 0,
sizeof(fc_host->supported_fc4s));
- memset(fc_host->symbolic_name, 0,
- sizeof(fc_host->symbolic_name));
fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN;
fc_host->maxframe_size = -1;
+ fc_host->max_npiv_vports = 0;
memset(fc_host->serial_number, 0,
sizeof(fc_host->serial_number));
sizeof(fc_host->active_fc4s));
fc_host->speed = FC_PORTSPEED_UNKNOWN;
fc_host->fabric_name = -1;
+ memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name));
+ memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname));
fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN;
INIT_LIST_HEAD(&fc_host->rports);
INIT_LIST_HEAD(&fc_host->rport_bindings);
+ INIT_LIST_HEAD(&fc_host->vports);
fc_host->next_rport_number = 0;
fc_host->next_target_id = 0;
+ fc_host->next_vport_number = 0;
+ fc_host->npiv_vports_inuse = 0;
- snprintf(fc_host->work_q_name, KOBJ_NAME_LEN, "fc_wq_%d",
- shost->host_no);
+ snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name),
+ "fc_wq_%d", shost->host_no);
fc_host->work_q = create_singlethread_workqueue(
fc_host->work_q_name);
if (!fc_host->work_q)
return -ENOMEM;
- snprintf(fc_host->devloss_work_q_name, KOBJ_NAME_LEN, "fc_dl_%d",
- shost->host_no);
+ snprintf(fc_host->devloss_work_q_name,
+ sizeof(fc_host->devloss_work_q_name),
+ "fc_dl_%d", shost->host_no);
fc_host->devloss_work_q = create_singlethread_workqueue(
fc_host->devloss_work_q_name);
if (!fc_host->devloss_work_q) {
NULL);
/*
+ * Setup and Remove actions for virtual ports are handled
+ * in the service functions below.
+ */
+static DECLARE_TRANSPORT_CLASS(fc_vport_class,
+ "fc_vports",
+ NULL,
+ NULL,
+ NULL);
+
+/*
* Module Parameters
*/
*/
static unsigned int fc_dev_loss_tmo = 60; /* seconds */
-module_param_named(dev_loss_tmo, fc_dev_loss_tmo, int, S_IRUGO|S_IWUSR);
+module_param_named(dev_loss_tmo, fc_dev_loss_tmo, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(dev_loss_tmo,
"Maximum number of seconds that the FC transport should"
" insulate the loss of a remote port. Once this value is"
" exceeded, the scsi target is removed. Value should be"
" between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT.");
+/*
+ * Netlink Infrastructure
+ */
+
+static atomic_t fc_event_seq;
+
+/**
+ * fc_get_event_number - Obtain the next sequential FC event number
+ *
+ * Notes:
+ * We could have inlined this, but it would have required fc_event_seq to
+ * be exposed. For now, live with the subroutine call.
+ * Atomic used to avoid lock/unlock...
+ */
+u32
+fc_get_event_number(void)
+{
+ return atomic_add_return(1, &fc_event_seq);
+}
+EXPORT_SYMBOL(fc_get_event_number);
+
+
+/**
+ * fc_host_post_event - called to post an even on an fc_host.
+ * @shost: host the event occurred on
+ * @event_number: fc event number obtained from get_fc_event_number()
+ * @event_code: fc_host event being posted
+ * @event_data: 32bits of data for the event being posted
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+void
+fc_host_post_event(struct Scsi_Host *shost, u32 event_number,
+ enum fc_host_event_code event_code, u32 event_data)
+{
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ struct fc_nl_event *event;
+ const char *name;
+ u32 len, skblen;
+ int err;
+
+ if (!scsi_nl_sock) {
+ err = -ENOENT;
+ goto send_fail;
+ }
+
+ len = FC_NL_MSGALIGN(sizeof(*event));
+ skblen = NLMSG_SPACE(len);
+
+ skb = alloc_skb(skblen, GFP_KERNEL);
+ if (!skb) {
+ err = -ENOBUFS;
+ goto send_fail;
+ }
+
+ nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG,
+ skblen - sizeof(*nlh), 0);
+ if (!nlh) {
+ err = -ENOBUFS;
+ goto send_fail_skb;
+ }
+ event = NLMSG_DATA(nlh);
+
+ INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC,
+ FC_NL_ASYNC_EVENT, len);
+ event->seconds = get_seconds();
+ event->vendor_id = 0;
+ event->host_no = shost->host_no;
+ event->event_datalen = sizeof(u32); /* bytes */
+ event->event_num = event_number;
+ event->event_code = event_code;
+ event->event_data = event_data;
+
+ err = nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS,
+ GFP_KERNEL);
+ if (err && (err != -ESRCH)) /* filter no recipient errors */
+ /* nlmsg_multicast already kfree_skb'd */
+ goto send_fail;
+
+ return;
+
+send_fail_skb:
+ kfree_skb(skb);
+send_fail:
+ name = get_fc_host_event_code_name(event_code);
+ printk(KERN_WARNING
+ "%s: Dropped Event : host %d %s data 0x%08x - err %d\n",
+ __func__, shost->host_no,
+ (name) ? name : "<unknown>", event_data, err);
+ return;
+}
+EXPORT_SYMBOL(fc_host_post_event);
+
+
+/**
+ * fc_host_post_vendor_event - called to post a vendor unique event on an fc_host
+ * @shost: host the event occurred on
+ * @event_number: fc event number obtained from get_fc_event_number()
+ * @data_len: amount, in bytes, of vendor unique data
+ * @data_buf: pointer to vendor unique data
+ * @vendor_id: Vendor id
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+void
+fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number,
+ u32 data_len, char * data_buf, u64 vendor_id)
+{
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ struct fc_nl_event *event;
+ u32 len, skblen;
+ int err;
+
+ if (!scsi_nl_sock) {
+ err = -ENOENT;
+ goto send_vendor_fail;
+ }
+
+ len = FC_NL_MSGALIGN(sizeof(*event) + data_len);
+ skblen = NLMSG_SPACE(len);
+
+ skb = alloc_skb(skblen, GFP_KERNEL);
+ if (!skb) {
+ err = -ENOBUFS;
+ goto send_vendor_fail;
+ }
+
+ nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG,
+ skblen - sizeof(*nlh), 0);
+ if (!nlh) {
+ err = -ENOBUFS;
+ goto send_vendor_fail_skb;
+ }
+ event = NLMSG_DATA(nlh);
+
+ INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC,
+ FC_NL_ASYNC_EVENT, len);
+ event->seconds = get_seconds();
+ event->vendor_id = vendor_id;
+ event->host_no = shost->host_no;
+ event->event_datalen = data_len; /* bytes */
+ event->event_num = event_number;
+ event->event_code = FCH_EVT_VENDOR_UNIQUE;
+ memcpy(&event->event_data, data_buf, data_len);
+
+ err = nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS,
+ GFP_KERNEL);
+ if (err && (err != -ESRCH)) /* filter no recipient errors */
+ /* nlmsg_multicast already kfree_skb'd */
+ goto send_vendor_fail;
+
+ return;
+
+send_vendor_fail_skb:
+ kfree_skb(skb);
+send_vendor_fail:
+ printk(KERN_WARNING
+ "%s: Dropped Event : host %d vendor_unique - err %d\n",
+ __func__, shost->host_no, err);
+ return;
+}
+EXPORT_SYMBOL(fc_host_post_vendor_event);
+
+
static __init int fc_transport_init(void)
{
- int error = transport_class_register(&fc_host_class);
+ int error;
+
+ atomic_set(&fc_event_seq, 0);
+
+ error = transport_class_register(&fc_host_class);
+ if (error)
+ return error;
+ error = transport_class_register(&fc_vport_class);
if (error)
return error;
error = transport_class_register(&fc_rport_class);
transport_class_unregister(&fc_transport_class);
transport_class_unregister(&fc_rport_class);
transport_class_unregister(&fc_host_class);
+ transport_class_unregister(&fc_vport_class);
}
/*
#define fc_rport_show_function(field, format_string, sz, cast) \
static ssize_t \
-show_fc_rport_##field (struct class_device *cdev, char *buf) \
+show_fc_rport_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct fc_rport *rport = transport_class_to_rport(cdev); \
+ struct fc_rport *rport = transport_class_to_rport(dev); \
struct Scsi_Host *shost = rport_to_shost(rport); \
struct fc_internal *i = to_fc_internal(shost->transportt); \
if ((i->f->get_rport_##field) && \
#define fc_rport_store_function(field) \
static ssize_t \
-store_fc_rport_##field(struct class_device *cdev, const char *buf, \
- size_t count) \
+store_fc_rport_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
{ \
int val; \
- struct fc_rport *rport = transport_class_to_rport(cdev); \
+ struct fc_rport *rport = transport_class_to_rport(dev); \
struct Scsi_Host *shost = rport_to_shost(rport); \
struct fc_internal *i = to_fc_internal(shost->transportt); \
+ char *cp; \
if ((rport->port_state == FC_PORTSTATE_BLOCKED) || \
(rport->port_state == FC_PORTSTATE_DELETED) || \
(rport->port_state == FC_PORTSTATE_NOTPRESENT)) \
return -EBUSY; \
- val = simple_strtoul(buf, NULL, 0); \
+ val = simple_strtoul(buf, &cp, 0); \
+ if (*cp && (*cp != '\n')) \
+ return -EINVAL; \
i->f->set_rport_##field(rport, val); \
return count; \
}
#define fc_rport_rd_attr(field, format_string, sz) \
fc_rport_show_function(field, format_string, sz, ) \
-static FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \
+static FC_DEVICE_ATTR(rport, field, S_IRUGO, \
show_fc_rport_##field, NULL)
#define fc_rport_rd_attr_cast(field, format_string, sz, cast) \
fc_rport_show_function(field, format_string, sz, (cast)) \
-static FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \
+static FC_DEVICE_ATTR(rport, field, S_IRUGO, \
show_fc_rport_##field, NULL)
#define fc_rport_rw_attr(field, format_string, sz) \
fc_rport_show_function(field, format_string, sz, ) \
fc_rport_store_function(field) \
-static FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \
+static FC_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \
show_fc_rport_##field, \
store_fc_rport_##field)
#define fc_private_rport_show_function(field, format_string, sz, cast) \
static ssize_t \
-show_fc_rport_##field (struct class_device *cdev, char *buf) \
+show_fc_rport_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct fc_rport *rport = transport_class_to_rport(cdev); \
+ struct fc_rport *rport = transport_class_to_rport(dev); \
return snprintf(buf, sz, format_string, cast rport->field); \
}
#define fc_private_rport_rd_attr(field, format_string, sz) \
fc_private_rport_show_function(field, format_string, sz, ) \
-static FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \
+static FC_DEVICE_ATTR(rport, field, S_IRUGO, \
show_fc_rport_##field, NULL)
#define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \
fc_private_rport_show_function(field, format_string, sz, (cast)) \
-static FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \
+static FC_DEVICE_ATTR(rport, field, S_IRUGO, \
show_fc_rport_##field, NULL)
#define fc_private_rport_rd_enum_attr(title, maxlen) \
static ssize_t \
-show_fc_rport_##title (struct class_device *cdev, char *buf) \
+show_fc_rport_##title (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct fc_rport *rport = transport_class_to_rport(cdev); \
+ struct fc_rport *rport = transport_class_to_rport(dev); \
const char *name; \
name = get_fc_##title##_name(rport->title); \
if (!name) \
return -EINVAL; \
return snprintf(buf, maxlen, "%s\n", name); \
} \
-static FC_CLASS_DEVICE_ATTR(rport, title, S_IRUGO, \
+static FC_DEVICE_ATTR(rport, title, S_IRUGO, \
show_fc_rport_##title, NULL)
#define SETUP_RPORT_ATTRIBUTE_RD(field) \
- i->private_rport_attrs[count] = class_device_attr_rport_##field; \
+ i->private_rport_attrs[count] = device_attr_rport_##field; \
i->private_rport_attrs[count].attr.mode = S_IRUGO; \
i->private_rport_attrs[count].store = NULL; \
i->rport_attrs[count] = &i->private_rport_attrs[count]; \
count++
#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \
- i->private_rport_attrs[count] = class_device_attr_rport_##field; \
+ i->private_rport_attrs[count] = device_attr_rport_##field; \
i->private_rport_attrs[count].attr.mode = S_IRUGO; \
i->private_rport_attrs[count].store = NULL; \
i->rport_attrs[count] = &i->private_rport_attrs[count]; \
count++
#define SETUP_RPORT_ATTRIBUTE_RW(field) \
- i->private_rport_attrs[count] = class_device_attr_rport_##field; \
+ i->private_rport_attrs[count] = device_attr_rport_##field; \
if (!i->f->set_rport_##field) { \
i->private_rport_attrs[count].attr.mode = S_IRUGO; \
i->private_rport_attrs[count].store = NULL; \
if (i->f->show_rport_##field) \
count++
+#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(field) \
+{ \
+ i->private_rport_attrs[count] = device_attr_rport_##field; \
+ i->rport_attrs[count] = &i->private_rport_attrs[count]; \
+ count++; \
+}
+
/* The FC Transport Remote Port Attributes: */
fc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20);
static ssize_t
-show_fc_rport_supported_classes (struct class_device *cdev, char *buf)
+show_fc_rport_supported_classes (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct fc_rport *rport = transport_class_to_rport(cdev);
+ struct fc_rport *rport = transport_class_to_rport(dev);
if (rport->supported_classes == FC_COS_UNSPECIFIED)
return snprintf(buf, 20, "unspecified\n");
return get_fc_cos_names(rport->supported_classes, buf);
}
-static FC_CLASS_DEVICE_ATTR(rport, supported_classes, S_IRUGO,
+static FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO,
show_fc_rport_supported_classes, NULL);
/* Dynamic Remote Port Attributes */
*/
fc_rport_show_function(dev_loss_tmo, "%d\n", 20, )
static ssize_t
-store_fc_rport_dev_loss_tmo(struct class_device *cdev, const char *buf,
- size_t count)
+store_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
int val;
- struct fc_rport *rport = transport_class_to_rport(cdev);
+ struct fc_rport *rport = transport_class_to_rport(dev);
struct Scsi_Host *shost = rport_to_shost(rport);
struct fc_internal *i = to_fc_internal(shost->transportt);
+ char *cp;
if ((rport->port_state == FC_PORTSTATE_BLOCKED) ||
(rport->port_state == FC_PORTSTATE_DELETED) ||
(rport->port_state == FC_PORTSTATE_NOTPRESENT))
return -EBUSY;
- val = simple_strtoul(buf, NULL, 0);
- if ((val < 0) || (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT))
+ val = simple_strtoul(buf, &cp, 0);
+ if ((*cp && (*cp != '\n')) ||
+ (val < 0) || (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT))
return -EINVAL;
i->f->set_rport_dev_loss_tmo(rport, val);
return count;
}
-static FC_CLASS_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR,
+static FC_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR,
show_fc_rport_dev_loss_tmo, store_fc_rport_dev_loss_tmo);
fc_private_rport_rd_attr(port_id, "0x%06x\n", 20);
static ssize_t
-show_fc_rport_roles (struct class_device *cdev, char *buf)
+show_fc_rport_roles (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct fc_rport *rport = transport_class_to_rport(cdev);
+ struct fc_rport *rport = transport_class_to_rport(dev);
/* identify any roles that are port_id specific */
if ((rport->port_id != -1) &&
return snprintf(buf, 30, "Unknown Fabric Entity\n");
}
} else {
- if (rport->roles == FC_RPORT_ROLE_UNKNOWN)
+ if (rport->roles == FC_PORT_ROLE_UNKNOWN)
return snprintf(buf, 20, "unknown\n");
- return get_fc_remote_port_roles_names(rport->roles, buf);
+ return get_fc_port_roles_names(rport->roles, buf);
}
}
-static FC_CLASS_DEVICE_ATTR(rport, roles, S_IRUGO,
+static FC_DEVICE_ATTR(rport, roles, S_IRUGO,
show_fc_rport_roles, NULL);
fc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN);
fc_private_rport_rd_attr(scsi_target_id, "%d\n", 20);
+/*
+ * fast_io_fail_tmo attribute
+ */
+static ssize_t
+show_fc_rport_fast_io_fail_tmo (struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fc_rport *rport = transport_class_to_rport(dev);
+
+ if (rport->fast_io_fail_tmo == -1)
+ return snprintf(buf, 5, "off\n");
+ return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo);
+}
+
+static ssize_t
+store_fc_rport_fast_io_fail_tmo(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ int val;
+ char *cp;
+ struct fc_rport *rport = transport_class_to_rport(dev);
+
+ if ((rport->port_state == FC_PORTSTATE_BLOCKED) ||
+ (rport->port_state == FC_PORTSTATE_DELETED) ||
+ (rport->port_state == FC_PORTSTATE_NOTPRESENT))
+ return -EBUSY;
+ if (strncmp(buf, "off", 3) == 0)
+ rport->fast_io_fail_tmo = -1;
+ else {
+ val = simple_strtoul(buf, &cp, 0);
+ if ((*cp && (*cp != '\n')) ||
+ (val < 0) || (val >= rport->dev_loss_tmo))
+ return -EINVAL;
+ rport->fast_io_fail_tmo = val;
+ }
+ return count;
+}
+static FC_DEVICE_ATTR(rport, fast_io_fail_tmo, S_IRUGO | S_IWUSR,
+ show_fc_rport_fast_io_fail_tmo, store_fc_rport_fast_io_fail_tmo);
/*
*/
#define fc_starget_show_function(field, format_string, sz, cast) \
static ssize_t \
-show_fc_starget_##field (struct class_device *cdev, char *buf) \
+show_fc_starget_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct scsi_target *starget = transport_class_to_starget(cdev); \
+ struct scsi_target *starget = transport_class_to_starget(dev); \
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \
struct fc_internal *i = to_fc_internal(shost->transportt); \
struct fc_rport *rport = starget_to_rport(starget); \
#define fc_starget_rd_attr(field, format_string, sz) \
fc_starget_show_function(field, format_string, sz, ) \
-static FC_CLASS_DEVICE_ATTR(starget, field, S_IRUGO, \
+static FC_DEVICE_ATTR(starget, field, S_IRUGO, \
show_fc_starget_##field, NULL)
#define fc_starget_rd_attr_cast(field, format_string, sz, cast) \
fc_starget_show_function(field, format_string, sz, (cast)) \
-static FC_CLASS_DEVICE_ATTR(starget, field, S_IRUGO, \
+static FC_DEVICE_ATTR(starget, field, S_IRUGO, \
show_fc_starget_##field, NULL)
#define SETUP_STARGET_ATTRIBUTE_RD(field) \
- i->private_starget_attrs[count] = class_device_attr_starget_##field; \
+ i->private_starget_attrs[count] = device_attr_starget_##field; \
i->private_starget_attrs[count].attr.mode = S_IRUGO; \
i->private_starget_attrs[count].store = NULL; \
i->starget_attrs[count] = &i->private_starget_attrs[count]; \
count++
#define SETUP_STARGET_ATTRIBUTE_RW(field) \
- i->private_starget_attrs[count] = class_device_attr_starget_##field; \
+ i->private_starget_attrs[count] = device_attr_starget_##field; \
if (!i->f->set_starget_##field) { \
i->private_starget_attrs[count].attr.mode = S_IRUGO; \
i->private_starget_attrs[count].store = NULL; \
/*
+ * FC Virtual Port Attribute Management
+ */
+
+#define fc_vport_show_function(field, format_string, sz, cast) \
+static ssize_t \
+show_fc_vport_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct fc_vport *vport = transport_class_to_vport(dev); \
+ struct Scsi_Host *shost = vport_to_shost(vport); \
+ struct fc_internal *i = to_fc_internal(shost->transportt); \
+ if ((i->f->get_vport_##field) && \
+ !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \
+ i->f->get_vport_##field(vport); \
+ return snprintf(buf, sz, format_string, cast vport->field); \
+}
+
+#define fc_vport_store_function(field) \
+static ssize_t \
+store_fc_vport_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ int val; \
+ struct fc_vport *vport = transport_class_to_vport(dev); \
+ struct Scsi_Host *shost = vport_to_shost(vport); \
+ struct fc_internal *i = to_fc_internal(shost->transportt); \
+ char *cp; \
+ if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \
+ return -EBUSY; \
+ val = simple_strtoul(buf, &cp, 0); \
+ if (*cp && (*cp != '\n')) \
+ return -EINVAL; \
+ i->f->set_vport_##field(vport, val); \
+ return count; \
+}
+
+#define fc_vport_store_str_function(field, slen) \
+static ssize_t \
+store_fc_vport_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ struct fc_vport *vport = transport_class_to_vport(dev); \
+ struct Scsi_Host *shost = vport_to_shost(vport); \
+ struct fc_internal *i = to_fc_internal(shost->transportt); \
+ unsigned int cnt=count; \
+ \
+ /* count may include a LF at end of string */ \
+ if (buf[cnt-1] == '\n') \
+ cnt--; \
+ if (cnt > ((slen) - 1)) \
+ return -EINVAL; \
+ memcpy(vport->field, buf, cnt); \
+ i->f->set_vport_##field(vport); \
+ return count; \
+}
+
+#define fc_vport_rd_attr(field, format_string, sz) \
+ fc_vport_show_function(field, format_string, sz, ) \
+static FC_DEVICE_ATTR(vport, field, S_IRUGO, \
+ show_fc_vport_##field, NULL)
+
+#define fc_vport_rd_attr_cast(field, format_string, sz, cast) \
+ fc_vport_show_function(field, format_string, sz, (cast)) \
+static FC_DEVICE_ATTR(vport, field, S_IRUGO, \
+ show_fc_vport_##field, NULL)
+
+#define fc_vport_rw_attr(field, format_string, sz) \
+ fc_vport_show_function(field, format_string, sz, ) \
+ fc_vport_store_function(field) \
+static FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \
+ show_fc_vport_##field, \
+ store_fc_vport_##field)
+
+#define fc_private_vport_show_function(field, format_string, sz, cast) \
+static ssize_t \
+show_fc_vport_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct fc_vport *vport = transport_class_to_vport(dev); \
+ return snprintf(buf, sz, format_string, cast vport->field); \
+}
+
+#define fc_private_vport_store_u32_function(field) \
+static ssize_t \
+store_fc_vport_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ u32 val; \
+ struct fc_vport *vport = transport_class_to_vport(dev); \
+ char *cp; \
+ if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \
+ return -EBUSY; \
+ val = simple_strtoul(buf, &cp, 0); \
+ if (*cp && (*cp != '\n')) \
+ return -EINVAL; \
+ vport->field = val; \
+ return count; \
+}
+
+
+#define fc_private_vport_rd_attr(field, format_string, sz) \
+ fc_private_vport_show_function(field, format_string, sz, ) \
+static FC_DEVICE_ATTR(vport, field, S_IRUGO, \
+ show_fc_vport_##field, NULL)
+
+#define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \
+ fc_private_vport_show_function(field, format_string, sz, (cast)) \
+static FC_DEVICE_ATTR(vport, field, S_IRUGO, \
+ show_fc_vport_##field, NULL)
+
+#define fc_private_vport_rw_u32_attr(field, format_string, sz) \
+ fc_private_vport_show_function(field, format_string, sz, ) \
+ fc_private_vport_store_u32_function(field) \
+static FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \
+ show_fc_vport_##field, \
+ store_fc_vport_##field)
+
+
+#define fc_private_vport_rd_enum_attr(title, maxlen) \
+static ssize_t \
+show_fc_vport_##title (struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct fc_vport *vport = transport_class_to_vport(dev); \
+ const char *name; \
+ name = get_fc_##title##_name(vport->title); \
+ if (!name) \
+ return -EINVAL; \
+ return snprintf(buf, maxlen, "%s\n", name); \
+} \
+static FC_DEVICE_ATTR(vport, title, S_IRUGO, \
+ show_fc_vport_##title, NULL)
+
+
+#define SETUP_VPORT_ATTRIBUTE_RD(field) \
+ i->private_vport_attrs[count] = device_attr_vport_##field; \
+ i->private_vport_attrs[count].attr.mode = S_IRUGO; \
+ i->private_vport_attrs[count].store = NULL; \
+ i->vport_attrs[count] = &i->private_vport_attrs[count]; \
+ if (i->f->get_##field) \
+ count++
+ /* NOTE: Above MACRO differs: checks function not show bit */
+
+#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \
+ i->private_vport_attrs[count] = device_attr_vport_##field; \
+ i->private_vport_attrs[count].attr.mode = S_IRUGO; \
+ i->private_vport_attrs[count].store = NULL; \
+ i->vport_attrs[count] = &i->private_vport_attrs[count]; \
+ count++
+
+#define SETUP_VPORT_ATTRIBUTE_WR(field) \
+ i->private_vport_attrs[count] = device_attr_vport_##field; \
+ i->vport_attrs[count] = &i->private_vport_attrs[count]; \
+ if (i->f->field) \
+ count++
+ /* NOTE: Above MACRO differs: checks function */
+
+#define SETUP_VPORT_ATTRIBUTE_RW(field) \
+ i->private_vport_attrs[count] = device_attr_vport_##field; \
+ if (!i->f->set_vport_##field) { \
+ i->private_vport_attrs[count].attr.mode = S_IRUGO; \
+ i->private_vport_attrs[count].store = NULL; \
+ } \
+ i->vport_attrs[count] = &i->private_vport_attrs[count]; \
+ count++
+ /* NOTE: Above MACRO differs: does not check show bit */
+
+#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \
+{ \
+ i->private_vport_attrs[count] = device_attr_vport_##field; \
+ i->vport_attrs[count] = &i->private_vport_attrs[count]; \
+ count++; \
+}
+
+
+/* The FC Transport Virtual Port Attributes: */
+
+/* Fixed Virtual Port Attributes */
+
+/* Dynamic Virtual Port Attributes */
+
+/* Private Virtual Port Attributes */
+
+fc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN);
+fc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN);
+fc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long);
+fc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long);
+
+static ssize_t
+show_fc_vport_roles (struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct fc_vport *vport = transport_class_to_vport(dev);
+
+ if (vport->roles == FC_PORT_ROLE_UNKNOWN)
+ return snprintf(buf, 20, "unknown\n");
+ return get_fc_port_roles_names(vport->roles, buf);
+}
+static FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL);
+
+fc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN);
+
+fc_private_vport_show_function(symbolic_name, "%s\n",
+ FC_VPORT_SYMBOLIC_NAMELEN + 1, )
+fc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN)
+static FC_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR,
+ show_fc_vport_symbolic_name, store_fc_vport_symbolic_name);
+
+static ssize_t
+store_fc_vport_delete(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fc_vport *vport = transport_class_to_vport(dev);
+ struct Scsi_Host *shost = vport_to_shost(vport);
+
+ fc_queue_work(shost, &vport->vport_delete_work);
+ return count;
+}
+static FC_DEVICE_ATTR(vport, vport_delete, S_IWUSR,
+ NULL, store_fc_vport_delete);
+
+
+/*
+ * Enable/Disable vport
+ * Write "1" to disable, write "0" to enable
+ */
+static ssize_t
+store_fc_vport_disable(struct device *dev, struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct fc_vport *vport = transport_class_to_vport(dev);
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+ int stat;
+
+ if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))
+ return -EBUSY;
+
+ if (*buf == '0') {
+ if (vport->vport_state != FC_VPORT_DISABLED)
+ return -EALREADY;
+ } else if (*buf == '1') {
+ if (vport->vport_state == FC_VPORT_DISABLED)
+ return -EALREADY;
+ } else
+ return -EINVAL;
+
+ stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true));
+ return stat ? stat : count;
+}
+static FC_DEVICE_ATTR(vport, vport_disable, S_IWUSR,
+ NULL, store_fc_vport_disable);
+
+
+/*
* Host Attribute Management
*/
#define fc_host_show_function(field, format_string, sz, cast) \
static ssize_t \
-show_fc_host_##field (struct class_device *cdev, char *buf) \
+show_fc_host_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct Scsi_Host *shost = transport_class_to_shost(cdev); \
+ struct Scsi_Host *shost = transport_class_to_shost(dev); \
struct fc_internal *i = to_fc_internal(shost->transportt); \
if (i->f->get_host_##field) \
i->f->get_host_##field(shost); \
#define fc_host_store_function(field) \
static ssize_t \
-store_fc_host_##field(struct class_device *cdev, const char *buf, \
- size_t count) \
+store_fc_host_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
{ \
int val; \
- struct Scsi_Host *shost = transport_class_to_shost(cdev); \
+ struct Scsi_Host *shost = transport_class_to_shost(dev); \
struct fc_internal *i = to_fc_internal(shost->transportt); \
+ char *cp; \
\
- val = simple_strtoul(buf, NULL, 0); \
+ val = simple_strtoul(buf, &cp, 0); \
+ if (*cp && (*cp != '\n')) \
+ return -EINVAL; \
i->f->set_host_##field(shost, val); \
return count; \
}
+#define fc_host_store_str_function(field, slen) \
+static ssize_t \
+store_fc_host_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ struct Scsi_Host *shost = transport_class_to_shost(dev); \
+ struct fc_internal *i = to_fc_internal(shost->transportt); \
+ unsigned int cnt=count; \
+ \
+ /* count may include a LF at end of string */ \
+ if (buf[cnt-1] == '\n') \
+ cnt--; \
+ if (cnt > ((slen) - 1)) \
+ return -EINVAL; \
+ memcpy(fc_host_##field(shost), buf, cnt); \
+ i->f->set_host_##field(shost); \
+ return count; \
+}
+
#define fc_host_rd_attr(field, format_string, sz) \
fc_host_show_function(field, format_string, sz, ) \
-static FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \
+static FC_DEVICE_ATTR(host, field, S_IRUGO, \
show_fc_host_##field, NULL)
#define fc_host_rd_attr_cast(field, format_string, sz, cast) \
fc_host_show_function(field, format_string, sz, (cast)) \
-static FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \
+static FC_DEVICE_ATTR(host, field, S_IRUGO, \
show_fc_host_##field, NULL)
#define fc_host_rw_attr(field, format_string, sz) \
fc_host_show_function(field, format_string, sz, ) \
fc_host_store_function(field) \
-static FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \
+static FC_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \
show_fc_host_##field, \
store_fc_host_##field)
#define fc_host_rd_enum_attr(title, maxlen) \
static ssize_t \
-show_fc_host_##title (struct class_device *cdev, char *buf) \
+show_fc_host_##title (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct Scsi_Host *shost = transport_class_to_shost(cdev); \
+ struct Scsi_Host *shost = transport_class_to_shost(dev); \
struct fc_internal *i = to_fc_internal(shost->transportt); \
const char *name; \
if (i->f->get_host_##title) \
return -EINVAL; \
return snprintf(buf, maxlen, "%s\n", name); \
} \
-static FC_CLASS_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL)
+static FC_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL)
#define SETUP_HOST_ATTRIBUTE_RD(field) \
- i->private_host_attrs[count] = class_device_attr_host_##field; \
+ i->private_host_attrs[count] = device_attr_host_##field; \
i->private_host_attrs[count].attr.mode = S_IRUGO; \
i->private_host_attrs[count].store = NULL; \
i->host_attrs[count] = &i->private_host_attrs[count]; \
if (i->f->show_host_##field) \
count++
+#define SETUP_HOST_ATTRIBUTE_RD_NS(field) \
+ i->private_host_attrs[count] = device_attr_host_##field; \
+ i->private_host_attrs[count].attr.mode = S_IRUGO; \
+ i->private_host_attrs[count].store = NULL; \
+ i->host_attrs[count] = &i->private_host_attrs[count]; \
+ count++
+
#define SETUP_HOST_ATTRIBUTE_RW(field) \
- i->private_host_attrs[count] = class_device_attr_host_##field; \
+ i->private_host_attrs[count] = device_attr_host_##field; \
if (!i->f->set_host_##field) { \
i->private_host_attrs[count].attr.mode = S_IRUGO; \
i->private_host_attrs[count].store = NULL; \
#define fc_private_host_show_function(field, format_string, sz, cast) \
static ssize_t \
-show_fc_host_##field (struct class_device *cdev, char *buf) \
+show_fc_host_##field (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct Scsi_Host *shost = transport_class_to_shost(cdev); \
+ struct Scsi_Host *shost = transport_class_to_shost(dev); \
return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \
}
#define fc_private_host_rd_attr(field, format_string, sz) \
fc_private_host_show_function(field, format_string, sz, ) \
-static FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \
+static FC_DEVICE_ATTR(host, field, S_IRUGO, \
show_fc_host_##field, NULL)
#define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \
fc_private_host_show_function(field, format_string, sz, (cast)) \
-static FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \
+static FC_DEVICE_ATTR(host, field, S_IRUGO, \
show_fc_host_##field, NULL)
#define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \
- i->private_host_attrs[count] = class_device_attr_host_##field; \
+ i->private_host_attrs[count] = device_attr_host_##field; \
i->private_host_attrs[count].attr.mode = S_IRUGO; \
i->private_host_attrs[count].store = NULL; \
i->host_attrs[count] = &i->private_host_attrs[count]; \
#define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \
{ \
- i->private_host_attrs[count] = class_device_attr_host_##field; \
+ i->private_host_attrs[count] = device_attr_host_##field; \
i->host_attrs[count] = &i->private_host_attrs[count]; \
count++; \
}
/* Fixed Host Attributes */
static ssize_t
-show_fc_host_supported_classes (struct class_device *cdev, char *buf)
+show_fc_host_supported_classes (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED)
return snprintf(buf, 20, "unspecified\n");
return get_fc_cos_names(fc_host_supported_classes(shost), buf);
}
-static FC_CLASS_DEVICE_ATTR(host, supported_classes, S_IRUGO,
+static FC_DEVICE_ATTR(host, supported_classes, S_IRUGO,
show_fc_host_supported_classes, NULL);
static ssize_t
-show_fc_host_supported_fc4s (struct class_device *cdev, char *buf)
+show_fc_host_supported_fc4s (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost));
}
-static FC_CLASS_DEVICE_ATTR(host, supported_fc4s, S_IRUGO,
+static FC_DEVICE_ATTR(host, supported_fc4s, S_IRUGO,
show_fc_host_supported_fc4s, NULL);
static ssize_t
-show_fc_host_supported_speeds (struct class_device *cdev, char *buf)
+show_fc_host_supported_speeds (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN)
return snprintf(buf, 20, "unknown\n");
return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf);
}
-static FC_CLASS_DEVICE_ATTR(host, supported_speeds, S_IRUGO,
+static FC_DEVICE_ATTR(host, supported_speeds, S_IRUGO,
show_fc_host_supported_speeds, NULL);
fc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long);
fc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20,
unsigned long long);
-fc_private_host_rd_attr(symbolic_name, "%s\n", (FC_SYMBOLIC_NAME_SIZE +1));
fc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20);
+fc_private_host_rd_attr(max_npiv_vports, "%u\n", 20);
fc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1));
/* Dynamic Host Attributes */
static ssize_t
-show_fc_host_active_fc4s (struct class_device *cdev, char *buf)
+show_fc_host_active_fc4s (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
struct fc_internal *i = to_fc_internal(shost->transportt);
if (i->f->get_host_active_fc4s)
return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost));
}
-static FC_CLASS_DEVICE_ATTR(host, active_fc4s, S_IRUGO,
+static FC_DEVICE_ATTR(host, active_fc4s, S_IRUGO,
show_fc_host_active_fc4s, NULL);
static ssize_t
-show_fc_host_speed (struct class_device *cdev, char *buf)
+show_fc_host_speed (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
struct fc_internal *i = to_fc_internal(shost->transportt);
if (i->f->get_host_speed)
return get_fc_port_speed_names(fc_host_speed(shost), buf);
}
-static FC_CLASS_DEVICE_ATTR(host, speed, S_IRUGO,
+static FC_DEVICE_ATTR(host, speed, S_IRUGO,
show_fc_host_speed, NULL);
fc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN);
fc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN);
fc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long);
+fc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1);
+
+fc_private_host_show_function(system_hostname, "%s\n",
+ FC_SYMBOLIC_NAME_SIZE + 1, )
+fc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE)
+static FC_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR,
+ show_fc_host_system_hostname, store_fc_host_system_hostname);
/* Private Host Attributes */
static ssize_t
-show_fc_private_host_tgtid_bind_type(struct class_device *cdev, char *buf)
+show_fc_private_host_tgtid_bind_type(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
const char *name;
name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost));
pos = list_entry((head)->next, typeof(*pos), member)
static ssize_t
-store_fc_private_host_tgtid_bind_type(struct class_device *cdev,
- const char *buf, size_t count)
+store_fc_private_host_tgtid_bind_type(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
struct fc_rport *rport;
enum fc_tgtid_binding_type val;
unsigned long flags;
return count;
}
-static FC_CLASS_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR,
+static FC_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR,
show_fc_private_host_tgtid_bind_type,
store_fc_private_host_tgtid_bind_type);
static ssize_t
-store_fc_private_host_issue_lip(struct class_device *cdev,
- const char *buf, size_t count)
+store_fc_private_host_issue_lip(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
struct fc_internal *i = to_fc_internal(shost->transportt);
int ret;
return -ENOENT;
}
-static FC_CLASS_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL,
+static FC_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL,
store_fc_private_host_issue_lip);
+fc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20);
+
+
/*
* Host Statistics Management
*/
/* Show a given an attribute in the statistics group */
static ssize_t
-fc_stat_show(const struct class_device *cdev, char *buf, unsigned long offset)
+fc_stat_show(const struct device *dev, char *buf, unsigned long offset)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
struct fc_internal *i = to_fc_internal(shost->transportt);
struct fc_host_statistics *stats;
ssize_t ret = -ENOENT;
/* generate a read-only statistics attribute */
#define fc_host_statistic(name) \
-static ssize_t show_fcstat_##name(struct class_device *cd, char *buf) \
+static ssize_t show_fcstat_##name(struct device *cd, \
+ struct device_attribute *attr, \
+ char *buf) \
{ \
return fc_stat_show(cd, buf, \
offsetof(struct fc_host_statistics, name)); \
} \
-static FC_CLASS_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL)
+static FC_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL)
fc_host_statistic(seconds_since_last_reset);
fc_host_statistic(tx_frames);
fc_host_statistic(fcp_output_megabytes);
static ssize_t
-fc_reset_statistics(struct class_device *cdev, const char *buf,
- size_t count)
+fc_reset_statistics(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct Scsi_Host *shost = transport_class_to_shost(cdev);
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
struct fc_internal *i = to_fc_internal(shost->transportt);
/* ignore any data value written to the attribute */
return -ENOENT;
}
-static FC_CLASS_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL,
+static FC_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL,
fc_reset_statistics);
-
static struct attribute *fc_statistics_attrs[] = {
- &class_device_attr_host_seconds_since_last_reset.attr,
- &class_device_attr_host_tx_frames.attr,
- &class_device_attr_host_tx_words.attr,
- &class_device_attr_host_rx_frames.attr,
- &class_device_attr_host_rx_words.attr,
- &class_device_attr_host_lip_count.attr,
- &class_device_attr_host_nos_count.attr,
- &class_device_attr_host_error_frames.attr,
- &class_device_attr_host_dumped_frames.attr,
- &class_device_attr_host_link_failure_count.attr,
- &class_device_attr_host_loss_of_sync_count.attr,
- &class_device_attr_host_loss_of_signal_count.attr,
- &class_device_attr_host_prim_seq_protocol_err_count.attr,
- &class_device_attr_host_invalid_tx_word_count.attr,
- &class_device_attr_host_invalid_crc_count.attr,
- &class_device_attr_host_fcp_input_requests.attr,
- &class_device_attr_host_fcp_output_requests.attr,
- &class_device_attr_host_fcp_control_requests.attr,
- &class_device_attr_host_fcp_input_megabytes.attr,
- &class_device_attr_host_fcp_output_megabytes.attr,
- &class_device_attr_host_reset_statistics.attr,
+ &device_attr_host_seconds_since_last_reset.attr,
+ &device_attr_host_tx_frames.attr,
+ &device_attr_host_tx_words.attr,
+ &device_attr_host_rx_frames.attr,
+ &device_attr_host_rx_words.attr,
+ &device_attr_host_lip_count.attr,
+ &device_attr_host_nos_count.attr,
+ &device_attr_host_error_frames.attr,
+ &device_attr_host_dumped_frames.attr,
+ &device_attr_host_link_failure_count.attr,
+ &device_attr_host_loss_of_sync_count.attr,
+ &device_attr_host_loss_of_signal_count.attr,
+ &device_attr_host_prim_seq_protocol_err_count.attr,
+ &device_attr_host_invalid_tx_word_count.attr,
+ &device_attr_host_invalid_crc_count.attr,
+ &device_attr_host_fcp_input_requests.attr,
+ &device_attr_host_fcp_output_requests.attr,
+ &device_attr_host_fcp_control_requests.attr,
+ &device_attr_host_fcp_input_megabytes.attr,
+ &device_attr_host_fcp_output_megabytes.attr,
+ &device_attr_host_reset_statistics.attr,
NULL
};
.attrs = fc_statistics_attrs,
};
-static int fc_host_match(struct attribute_container *cont,
- struct device *dev)
-{
- struct Scsi_Host *shost;
- struct fc_internal *i;
- if (!scsi_is_host_device(dev))
- return 0;
+/* Host Vport Attributes */
- shost = dev_to_shost(dev);
- if (!shost->transportt || shost->transportt->host_attrs.ac.class
- != &fc_host_class.class)
- return 0;
+static int
+fc_parse_wwn(const char *ns, u64 *nm)
+{
+ unsigned int i, j;
+ u8 wwn[8];
+
+ memset(wwn, 0, sizeof(wwn));
+
+ /* Validate and store the new name */
+ for (i=0, j=0; i < 16; i++) {
+ if ((*ns >= 'a') && (*ns <= 'f'))
+ j = ((j << 4) | ((*ns++ -'a') + 10));
+ else if ((*ns >= 'A') && (*ns <= 'F'))
+ j = ((j << 4) | ((*ns++ -'A') + 10));
+ else if ((*ns >= '0') && (*ns <= '9'))
+ j = ((j << 4) | (*ns++ -'0'));
+ else
+ return -EINVAL;
+ if (i % 2) {
+ wwn[i/2] = j & 0xff;
+ j = 0;
+ }
+ }
- i = to_fc_internal(shost->transportt);
+ *nm = wwn_to_u64(wwn);
- return &i->t.host_attrs.ac == cont;
+ return 0;
}
-static int fc_target_match(struct attribute_container *cont,
- struct device *dev)
+
+/*
+ * "Short-cut" sysfs variable to create a new vport on a FC Host.
+ * Input is a string of the form "<WWPN>:<WWNN>". Other attributes
+ * will default to a NPIV-based FCP_Initiator; The WWNs are specified
+ * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc)
+ */
+static ssize_t
+store_fc_host_vport_create(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct Scsi_Host *shost;
- struct fc_internal *i;
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
+ struct fc_vport_identifiers vid;
+ struct fc_vport *vport;
+ unsigned int cnt=count;
+ int stat;
- if (!scsi_is_target_device(dev))
- return 0;
+ memset(&vid, 0, sizeof(vid));
- shost = dev_to_shost(dev->parent);
- if (!shost->transportt || shost->transportt->host_attrs.ac.class
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ /* validate we have enough characters for WWPN */
+ if ((cnt != (16+1+16)) || (buf[16] != ':'))
+ return -EINVAL;
+
+ stat = fc_parse_wwn(&buf[0], &vid.port_name);
+ if (stat)
+ return stat;
+
+ stat = fc_parse_wwn(&buf[17], &vid.node_name);
+ if (stat)
+ return stat;
+
+ vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
+ vid.vport_type = FC_PORTTYPE_NPIV;
+ /* vid.symbolic_name is already zero/NULL's */
+ vid.disable = false; /* always enabled */
+
+ /* we only allow support on Channel 0 !!! */
+ stat = fc_vport_create(shost, 0, &shost->shost_gendev, &vid, &vport);
+ return stat ? stat : count;
+}
+static FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL,
+ store_fc_host_vport_create);
+
+
+/*
+ * "Short-cut" sysfs variable to delete a vport on a FC Host.
+ * Vport is identified by a string containing "<WWPN>:<WWNN>".
+ * The WWNs are specified as hex characters, and may *not* contain
+ * any prefixes (e.g. 0x, x, etc)
+ */
+static ssize_t
+store_fc_host_vport_delete(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = transport_class_to_shost(dev);
+ struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
+ struct fc_vport *vport;
+ u64 wwpn, wwnn;
+ unsigned long flags;
+ unsigned int cnt=count;
+ int stat, match;
+
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ /* validate we have enough characters for WWPN */
+ if ((cnt != (16+1+16)) || (buf[16] != ':'))
+ return -EINVAL;
+
+ stat = fc_parse_wwn(&buf[0], &wwpn);
+ if (stat)
+ return stat;
+
+ stat = fc_parse_wwn(&buf[17], &wwnn);
+ if (stat)
+ return stat;
+
+ spin_lock_irqsave(shost->host_lock, flags);
+ match = 0;
+ /* we only allow support on Channel 0 !!! */
+ list_for_each_entry(vport, &fc_host->vports, peers) {
+ if ((vport->channel == 0) &&
+ (vport->port_name == wwpn) && (vport->node_name == wwnn)) {
+ match = 1;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
+ if (!match)
+ return -ENODEV;
+
+ stat = fc_vport_terminate(vport);
+ return stat ? stat : count;
+}
+static FC_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL,
+ store_fc_host_vport_delete);
+
+
+static int fc_host_match(struct attribute_container *cont,
+ struct device *dev)
+{
+ struct Scsi_Host *shost;
+ struct fc_internal *i;
+
+ if (!scsi_is_host_device(dev))
+ return 0;
+
+ shost = dev_to_shost(dev);
+ if (!shost->transportt || shost->transportt->host_attrs.ac.class
+ != &fc_host_class.class)
+ return 0;
+
+ i = to_fc_internal(shost->transportt);
+
+ return &i->t.host_attrs.ac == cont;
+}
+
+static int fc_target_match(struct attribute_container *cont,
+ struct device *dev)
+{
+ struct Scsi_Host *shost;
+ struct fc_internal *i;
+
+ if (!scsi_is_target_device(dev))
+ return 0;
+
+ shost = dev_to_shost(dev->parent);
+ if (!shost->transportt || shost->transportt->host_attrs.ac.class
!= &fc_host_class.class)
return 0;
}
+static void fc_vport_dev_release(struct device *dev)
+{
+ struct fc_vport *vport = dev_to_vport(dev);
+ put_device(dev->parent); /* release kobj parent */
+ kfree(vport);
+}
+
+int scsi_is_fc_vport(const struct device *dev)
+{
+ return dev->release == fc_vport_dev_release;
+}
+EXPORT_SYMBOL(scsi_is_fc_vport);
+
+static int fc_vport_match(struct attribute_container *cont,
+ struct device *dev)
+{
+ struct fc_vport *vport;
+ struct Scsi_Host *shost;
+ struct fc_internal *i;
+
+ if (!scsi_is_fc_vport(dev))
+ return 0;
+ vport = dev_to_vport(dev);
+
+ shost = vport_to_shost(vport);
+ if (!shost->transportt || shost->transportt->host_attrs.ac.class
+ != &fc_host_class.class)
+ return 0;
+
+ i = to_fc_internal(shost->transportt);
+ return &i->vport_attr_cont.ac == cont;
+}
+
+
/**
* fc_timed_out - FC Transport I/O timeout intercept handler
- *
* @scmd: The SCSI command which timed out
*
* This routine protects against error handlers getting invoked while a
*
* Notes:
* This routine assumes no locks are held on entry.
- **/
-static enum scsi_eh_timer_return
+ */
+static enum blk_eh_timer_return
fc_timed_out(struct scsi_cmnd *scmd)
{
struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device));
if (rport->port_state == FC_PORTSTATE_BLOCKED)
- return EH_RESET_TIMER;
+ return BLK_EH_RESET_TIMER;
- return EH_NOT_HANDLED;
+ return BLK_EH_NOT_HANDLED;
}
/*
- * Must be called with shost->host_lock held
+ * Called by fc_user_scan to locate an rport on the shost that
+ * matches the channel and target id, and invoke scsi_scan_target()
+ * on the rport.
*/
-static int fc_user_scan(struct Scsi_Host *shost, uint channel,
- uint id, uint lun)
+static void
+fc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun)
{
struct fc_rport *rport;
+ unsigned long flags;
+
+ spin_lock_irqsave(shost->host_lock, flags);
list_for_each_entry(rport, &fc_host_rports(shost), peers) {
if (rport->scsi_target_id == -1)
continue;
- if ((channel == SCAN_WILD_CARD || channel == rport->channel) &&
- (id == SCAN_WILD_CARD || id == rport->scsi_target_id)) {
- scsi_scan_target(&rport->dev, rport->channel,
- rport->scsi_target_id, lun, 1);
+ if (rport->port_state != FC_PORTSTATE_ONLINE)
+ continue;
+
+ if ((channel == rport->channel) &&
+ (id == rport->scsi_target_id)) {
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ scsi_scan_target(&rport->dev, channel, id, lun, 1);
+ return;
}
}
+ spin_unlock_irqrestore(shost->host_lock, flags);
+}
+
+/*
+ * Called via sysfs scan routines. Necessary, as the FC transport
+ * wants to place all target objects below the rport object. So this
+ * routine must invoke the scsi_scan_target() routine with the rport
+ * object as the parent.
+ */
+static int
+fc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun)
+{
+ uint chlo, chhi;
+ uint tgtlo, tgthi;
+
+ if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) ||
+ ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) ||
+ ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun)))
+ return -EINVAL;
+
+ if (channel == SCAN_WILD_CARD) {
+ chlo = 0;
+ chhi = shost->max_channel + 1;
+ } else {
+ chlo = channel;
+ chhi = channel + 1;
+ }
+
+ if (id == SCAN_WILD_CARD) {
+ tgtlo = 0;
+ tgthi = shost->max_id;
+ } else {
+ tgtlo = id;
+ tgthi = id + 1;
+ }
+
+ for ( ; chlo < chhi; chlo++)
+ for ( ; tgtlo < tgthi; tgtlo++)
+ fc_user_scan_tgt(shost, chlo, tgtlo, lun);
+
return 0;
}
+static int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id,
+ int result)
+{
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+ return i->f->tsk_mgmt_response(shost, nexus, tm_id, result);
+}
+
+static int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result)
+{
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+ return i->f->it_nexus_response(shost, nexus, result);
+}
+
struct scsi_transport_template *
fc_attach_transport(struct fc_function_template *ft)
{
i->rport_attr_cont.ac.match = fc_rport_match;
transport_container_register(&i->rport_attr_cont);
+ i->vport_attr_cont.ac.attrs = &i->vport_attrs[0];
+ i->vport_attr_cont.ac.class = &fc_vport_class.class;
+ i->vport_attr_cont.ac.match = fc_vport_match;
+ transport_container_register(&i->vport_attr_cont);
+
i->f = ft;
/* Transport uses the shost workq for scsi scanning */
i->t.eh_timed_out = fc_timed_out;
i->t.user_scan = fc_user_scan;
-
+
+ /* target-mode drivers' functions */
+ i->t.tsk_mgmt_response = fc_tsk_mgmt_response;
+ i->t.it_nexus_response = fc_it_nexus_response;
+
/*
* Setup SCSI Target Attributes.
*/
SETUP_HOST_ATTRIBUTE_RD(permanent_port_name);
SETUP_HOST_ATTRIBUTE_RD(supported_classes);
SETUP_HOST_ATTRIBUTE_RD(supported_fc4s);
- SETUP_HOST_ATTRIBUTE_RD(symbolic_name);
SETUP_HOST_ATTRIBUTE_RD(supported_speeds);
SETUP_HOST_ATTRIBUTE_RD(maxframe_size);
+ if (ft->vport_create) {
+ SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports);
+ SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse);
+ }
SETUP_HOST_ATTRIBUTE_RD(serial_number);
SETUP_HOST_ATTRIBUTE_RD(port_id);
SETUP_HOST_ATTRIBUTE_RD(active_fc4s);
SETUP_HOST_ATTRIBUTE_RD(speed);
SETUP_HOST_ATTRIBUTE_RD(fabric_name);
+ SETUP_HOST_ATTRIBUTE_RD(symbolic_name);
+ SETUP_HOST_ATTRIBUTE_RW(system_hostname);
/* Transport-managed attributes */
SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type);
if (ft->issue_fc_host_lip)
SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip);
+ if (ft->vport_create)
+ SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create);
+ if (ft->vport_delete)
+ SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete);
BUG_ON(count > FC_HOST_NUM_ATTRS);
SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles);
SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state);
SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id);
+ if (ft->terminate_rport_io)
+ SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo);
BUG_ON(count > FC_RPORT_NUM_ATTRS);
i->rport_attrs[count] = NULL;
+ /*
+ * Setup Virtual Port Attributes.
+ */
+ count=0;
+ SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state);
+ SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state);
+ SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name);
+ SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name);
+ SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles);
+ SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type);
+ SETUP_VPORT_ATTRIBUTE_RW(symbolic_name);
+ SETUP_VPORT_ATTRIBUTE_WR(vport_delete);
+ SETUP_VPORT_ATTRIBUTE_WR(vport_disable);
+
+ BUG_ON(count > FC_VPORT_NUM_ATTRS);
+
+ i->vport_attrs[count] = NULL;
+
return &i->t;
}
EXPORT_SYMBOL(fc_attach_transport);
transport_container_unregister(&i->t.target_attrs);
transport_container_unregister(&i->t.host_attrs);
transport_container_unregister(&i->rport_attr_cont);
+ transport_container_unregister(&i->vport_attr_cont);
kfree(i);
}
* 1 - work queued for execution
* 0 - work is already queued
* -EINVAL - work queue doesn't exist
- **/
+ */
static int
fc_queue_work(struct Scsi_Host *shost, struct work_struct *work)
{
/**
* fc_flush_work - Flush a fc_host's workqueue.
* @shost: Pointer to Scsi_Host bound to fc_host.
- **/
+ */
static void
fc_flush_work(struct Scsi_Host *shost)
{
* @delay: jiffies to delay the work queuing
*
* Return value:
- * 0 on success / != 0 for error
- **/
+ * 1 on success / 0 already queued / < 0 for error
+ */
static int
-fc_queue_devloss_work(struct Scsi_Host *shost, struct work_struct *work,
+fc_queue_devloss_work(struct Scsi_Host *shost, struct delayed_work *work,
unsigned long delay)
{
if (unlikely(!fc_host_devloss_work_q(shost))) {
/**
* fc_flush_devloss - Flush a fc_host's devloss workqueue.
* @shost: Pointer to Scsi_Host bound to fc_host.
- **/
+ */
static void
fc_flush_devloss(struct Scsi_Host *shost)
{
/**
- * fc_remove_host - called to terminate any fc_transport-related elements
- * for a scsi host.
- * @rport: remote port to be unblocked.
+ * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host.
+ * @shost: Which &Scsi_Host
*
* This routine is expected to be called immediately preceeding the
* a driver's call to scsi_remove_host().
*
* WARNING: A driver utilizing the fc_transport, which fails to call
- * this routine prior to scsi_remote_host(), will leave dangling
+ * this routine prior to scsi_remove_host(), will leave dangling
* objects in /sys/class/fc_remote_ports. Access to any of these
* objects can result in a system crash !!!
*
* Notes:
* This routine assumes no locks are held on entry.
- **/
+ */
void
fc_remove_host(struct Scsi_Host *shost)
{
- struct fc_rport *rport, *next_rport;
+ struct fc_vport *vport = NULL, *next_vport = NULL;
+ struct fc_rport *rport = NULL, *next_rport = NULL;
struct workqueue_struct *work_q;
struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
+ unsigned long flags;
+
+ spin_lock_irqsave(shost->host_lock, flags);
+
+ /* Remove any vports */
+ list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers)
+ fc_queue_work(shost, &vport->vport_delete_work);
/* Remove any remote ports */
list_for_each_entry_safe(rport, next_rport,
fc_queue_work(shost, &rport->rport_delete_work);
}
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
/* flush all scan work items */
scsi_flush_work(shost);
/**
* fc_starget_delete - called to delete the scsi decendents of an rport
- * (target and all sdevs)
+ * @work: remote port to be operated on.
*
- * @data: remote port to be operated on.
- **/
+ * Deletes target and all sdevs.
+ */
static void
-fc_starget_delete(void *data)
+fc_starget_delete(struct work_struct *work)
{
- struct fc_rport *rport = (struct fc_rport *)data;
+ struct fc_rport *rport =
+ container_of(work, struct fc_rport, stgt_delete_work);
struct Scsi_Host *shost = rport_to_shost(rport);
- unsigned long flags;
+ struct fc_internal *i = to_fc_internal(shost->transportt);
- spin_lock_irqsave(shost->host_lock, flags);
- if (rport->flags & FC_RPORT_DEVLOSS_PENDING) {
- spin_unlock_irqrestore(shost->host_lock, flags);
- if (!cancel_delayed_work(&rport->dev_loss_work))
- fc_flush_devloss(shost);
- spin_lock_irqsave(shost->host_lock, flags);
- rport->flags &= ~FC_RPORT_DEVLOSS_PENDING;
- }
- spin_unlock_irqrestore(shost->host_lock, flags);
+ /* Involve the LLDD if possible to terminate all io on the rport. */
+ if (i->f->terminate_rport_io)
+ i->f->terminate_rport_io(rport);
scsi_remove_target(&rport->dev);
}
/**
* fc_rport_final_delete - finish rport termination and delete it.
- *
- * @data: remote port to be deleted.
- **/
+ * @work: remote port to be deleted.
+ */
static void
-fc_rport_final_delete(void *data)
+fc_rport_final_delete(struct work_struct *work)
{
- struct fc_rport *rport = (struct fc_rport *)data;
+ struct fc_rport *rport =
+ container_of(work, struct fc_rport, rport_delete_work);
struct device *dev = &rport->dev;
struct Scsi_Host *shost = rport_to_shost(rport);
-
- /* Delete SCSI target and sdevs */
- if (rport->scsi_target_id != -1)
- fc_starget_delete(data);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+ unsigned long flags;
/*
- * if a scan is pending, flush the SCSI Host work_q so that
+ * if a scan is pending, flush the SCSI Host work_q so that
* that we can reclaim the rport scan work element.
*/
if (rport->flags & FC_RPORT_SCAN_PENDING)
scsi_flush_work(shost);
+ /* involve the LLDD to terminate all pending i/o */
+ if (i->f->terminate_rport_io)
+ i->f->terminate_rport_io(rport);
+
+ /*
+ * Cancel any outstanding timers. These should really exist
+ * only when rmmod'ing the LLDD and we're asking for
+ * immediate termination of the rports
+ */
+ spin_lock_irqsave(shost->host_lock, flags);
+ if (rport->flags & FC_RPORT_DEVLOSS_PENDING) {
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ if (!cancel_delayed_work(&rport->fail_io_work))
+ fc_flush_devloss(shost);
+ if (!cancel_delayed_work(&rport->dev_loss_work))
+ fc_flush_devloss(shost);
+ spin_lock_irqsave(shost->host_lock, flags);
+ rport->flags &= ~FC_RPORT_DEVLOSS_PENDING;
+ }
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
+ /* Delete SCSI target and sdevs */
+ if (rport->scsi_target_id != -1)
+ fc_starget_delete(&rport->stgt_delete_work);
+
+ /*
+ * Notify the driver that the rport is now dead. The LLDD will
+ * also guarantee that any communication to the rport is terminated
+ */
+ if (i->f->dev_loss_tmo_callbk)
+ i->f->dev_loss_tmo_callbk(rport);
+
transport_remove_device(dev);
device_del(dev);
transport_destroy_device(dev);
*
* Notes:
* This routine assumes no locks are held on entry.
- **/
-struct fc_rport *
+ */
+static struct fc_rport *
fc_rport_create(struct Scsi_Host *shost, int channel,
struct fc_rport_identifiers *ids)
{
size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size);
rport = kzalloc(size, GFP_KERNEL);
if (unlikely(!rport)) {
- printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__);
+ printk(KERN_ERR "%s: allocation failure\n", __func__);
return NULL;
}
if (fci->f->dd_fcrport_size)
rport->dd_data = &rport[1];
rport->channel = channel;
+ rport->fast_io_fail_tmo = -1;
- INIT_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport, rport);
- INIT_WORK(&rport->scan_work, fc_scsi_scan_rport, rport);
- INIT_WORK(&rport->stgt_delete_work, fc_starget_delete, rport);
- INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete, rport);
+ INIT_DELAYED_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport);
+ INIT_DELAYED_WORK(&rport->fail_io_work, fc_timeout_fail_rport_io);
+ INIT_WORK(&rport->scan_work, fc_scsi_scan_rport);
+ INIT_WORK(&rport->stgt_delete_work, fc_starget_delete);
+ INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete);
spin_lock_irqsave(shost->host_lock, flags);
rport->number = fc_host->next_rport_number++;
- if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
+ if (rport->roles & FC_PORT_ROLE_FCP_TARGET)
rport->scsi_target_id = fc_host->next_target_id++;
else
rport->scsi_target_id = -1;
transport_add_device(dev);
transport_configure_device(dev);
- if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) {
+ if (rport->roles & FC_PORT_ROLE_FCP_TARGET) {
/* initiate a scan of the target */
rport->flags |= FC_RPORT_SCAN_PENDING;
scsi_queue_work(shost, &rport->scan_work);
}
/**
- * fc_remote_port_add - notifies the fc transport of the existence
- * of a remote FC port.
+ * fc_remote_port_add - notify fc transport of the existence of a remote FC port.
* @shost: scsi host the remote port is connected to.
* @channel: Channel on shost port connected to.
* @ids: The world wide names, fc address, and FC4 port
*
* Notes:
* This routine assumes no locks are held on entry.
- **/
+ */
struct fc_rport *
fc_remote_port_add(struct Scsi_Host *shost, int channel,
struct fc_rport_identifiers *ids)
}
if (match) {
- struct work_struct *work =
- &rport->dev_loss_work;
memcpy(&rport->node_name, &ids->node_name,
sizeof(rport->node_name));
fci->f->dd_fcrport_size);
/*
- * If we were blocked, we were a target.
- * If no longer a target, we leave the timer
- * running in case the port changes roles
- * prior to the timer expiring. If the timer
- * fires, the target will be torn down.
+ * If we were not a target, cancel the
+ * io terminate and rport timers, and
+ * we're done.
+ *
+ * If we were a target, but our new role
+ * doesn't indicate a target, leave the
+ * timers running expecting the role to
+ * change as the target fully logs in. If
+ * it doesn't, the target will be torn down.
+ *
+ * If we were a target, and our role shows
+ * we're still a target, cancel the timers
+ * and kick off a scan.
*/
- if (!(ids->roles & FC_RPORT_ROLE_FCP_TARGET))
- return rport;
- /* restart the target */
+ /* was a target, not in roles */
+ if ((rport->scsi_target_id != -1) &&
+ (!(ids->roles & FC_PORT_ROLE_FCP_TARGET)))
+ return rport;
/*
- * Stop the target timer first. Take no action
- * on the del_timer failure as the state
- * machine state change will validate the
- * transaction.
+ * Stop the fail io and dev_loss timers.
+ * If they flush, the port_state will
+ * be checked and will NOOP the function.
*/
- if (!cancel_delayed_work(work))
+ if (!cancel_delayed_work(&rport->fail_io_work))
+ fc_flush_devloss(shost);
+ if (!cancel_delayed_work(&rport->dev_loss_work))
fc_flush_devloss(shost);
spin_lock_irqsave(shost->host_lock, flags);
rport->flags &= ~FC_RPORT_DEVLOSS_PENDING;
- /* initiate a scan of the target */
- rport->flags |= FC_RPORT_SCAN_PENDING;
- scsi_queue_work(shost, &rport->scan_work);
-
- spin_unlock_irqrestore(shost->host_lock, flags);
-
- scsi_target_unblock(&rport->dev);
+ /* if target, initiate a scan */
+ if (rport->scsi_target_id != -1) {
+ rport->flags |= FC_RPORT_SCAN_PENDING;
+ scsi_queue_work(shost,
+ &rport->scan_work);
+ spin_unlock_irqrestore(shost->host_lock,
+ flags);
+ scsi_target_unblock(&rport->dev);
+ } else
+ spin_unlock_irqrestore(shost->host_lock,
+ flags);
return rport;
}
}
}
- /* Search the bindings array */
+ /*
+ * Search the bindings array
+ * Note: if never a FCP target, you won't be on this list
+ */
if (fc_host->tgtid_bind_type != FC_TGTID_BIND_NONE) {
/* search for a matching consistent binding */
memset(rport->dd_data, 0,
fci->f->dd_fcrport_size);
- if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) {
+ if (rport->roles & FC_PORT_ROLE_FCP_TARGET) {
/* initiate a scan of the target */
rport->flags |= FC_RPORT_SCAN_PENDING;
scsi_queue_work(shost, &rport->scan_work);
/**
- * fc_remote_port_delete - notifies the fc transport that a remote
- * port is no longer in existence.
+ * fc_remote_port_delete - notifies the fc transport that a remote port is no longer in existence.
* @rport: The remote port that no longer exists
*
* The LLDD calls this routine to notify the transport that a remote
* port is no longer part of the topology. Note: Although a port
* may no longer be part of the topology, it may persist in the remote
* ports displayed by the fc_host. We do this under 2 conditions:
- * - If the port was a scsi target, we delay its deletion by "blocking" it.
+ * 1) If the port was a scsi target, we delay its deletion by "blocking" it.
* This allows the port to temporarily disappear, then reappear without
* disrupting the SCSI device tree attached to it. During the "blocked"
* period the port will still exist.
- * - If the port was a scsi target and disappears for longer than we
+ * 2) If the port was a scsi target and disappears for longer than we
* expect, we'll delete the port and the tear down the SCSI device tree
* attached to it. However, we want to semi-persist the target id assigned
* to that port if it eventually does exist. The port structure will
* temporary blocked state. From the LLDD's perspective, the rport no
* longer exists. From the SCSI midlayer's perspective, the SCSI target
* exists, but all sdevs on it are blocked from further I/O. The following
- * is then expected:
+ * is then expected.
+ *
* If the remote port does not return (signaled by a LLDD call to
* fc_remote_port_add()) within the dev_loss_tmo timeout, then the
* scsi target is removed - killing all outstanding i/o and removing the
*
* Notes:
* This routine assumes no locks are held on entry.
- **/
+ */
void
fc_remote_port_delete(struct fc_rport *rport)
{
struct Scsi_Host *shost = rport_to_shost(rport);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
int timeout = rport->dev_loss_tmo;
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
- /* If no scsi target id mapping, delete it */
- if (rport->scsi_target_id == -1) {
- list_del(&rport->peers);
- rport->port_state = FC_PORTSTATE_DELETED;
- fc_queue_work(shost, &rport->rport_delete_work);
+ if (rport->port_state != FC_PORTSTATE_ONLINE) {
spin_unlock_irqrestore(shost->host_lock, flags);
return;
}
+ /*
+ * In the past, we if this was not an FCP-Target, we would
+ * unconditionally just jump to deleting the rport.
+ * However, rports can be used as node containers by the LLDD,
+ * and its not appropriate to just terminate the rport at the
+ * first sign of a loss in connectivity. The LLDD may want to
+ * send ELS traffic to re-validate the login. If the rport is
+ * immediately deleted, it makes it inappropriate for a node
+ * container.
+ * So... we now unconditionally wait dev_loss_tmo before
+ * destroying an rport.
+ */
+
rport->port_state = FC_PORTSTATE_BLOCKED;
rport->flags |= FC_RPORT_DEVLOSS_PENDING;
spin_unlock_irqrestore(shost->host_lock, flags);
+ if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR &&
+ shost->active_mode & MODE_TARGET)
+ fc_tgt_it_nexus_destroy(shost, (unsigned long)rport);
+
scsi_target_block(&rport->dev);
+ /* see if we need to kill io faster than waiting for device loss */
+ if ((rport->fast_io_fail_tmo != -1) &&
+ (rport->fast_io_fail_tmo < timeout) && (i->f->terminate_rport_io))
+ fc_queue_devloss_work(shost, &rport->fail_io_work,
+ rport->fast_io_fail_tmo * HZ);
+
/* cap the length the devices can be blocked until they are deleted */
fc_queue_devloss_work(shost, &rport->dev_loss_work, timeout * HZ);
}
EXPORT_SYMBOL(fc_remote_port_delete);
/**
- * fc_remote_port_rolechg - notifies the fc transport that the roles
- * on a remote may have changed.
+ * fc_remote_port_rolechg - notifies the fc transport that the roles on a remote may have changed.
* @rport: The remote port that changed.
+ * @roles: New roles for this port.
*
- * The LLDD calls this routine to notify the transport that the roles
- * on a remote port may have changed. The largest effect of this is
+ * Description: The LLDD calls this routine to notify the transport that the
+ * roles on a remote port may have changed. The largest effect of this is
* if a port now becomes a FCP Target, it must be allocated a
* scsi target id. If the port is no longer a FCP target, any
* scsi target id value assigned to it will persist in case the
*
* Notes:
* This routine assumes no locks are held on entry.
- **/
+ */
void
fc_remote_port_rolechg(struct fc_rport *rport, u32 roles)
{
struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
unsigned long flags;
int create = 0;
+ int ret;
spin_lock_irqsave(shost->host_lock, flags);
- if (roles & FC_RPORT_ROLE_FCP_TARGET) {
+ if (roles & FC_PORT_ROLE_FCP_TARGET) {
if (rport->scsi_target_id == -1) {
rport->scsi_target_id = fc_host->next_target_id++;
create = 1;
- } else if (!(rport->roles & FC_RPORT_ROLE_FCP_TARGET))
+ } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET))
create = 1;
+ } else if (shost->active_mode & MODE_TARGET) {
+ ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport,
+ (char *)&rport->node_name);
+ if (ret)
+ printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n",
+ ret);
}
rport->roles = roles;
* machine state change will validate the
* transaction.
*/
+ if (!cancel_delayed_work(&rport->fail_io_work))
+ fc_flush_devloss(shost);
if (!cancel_delayed_work(&rport->dev_loss_work))
fc_flush_devloss(shost);
EXPORT_SYMBOL(fc_remote_port_rolechg);
/**
- * fc_timeout_deleted_rport - Timeout handler for a deleted remote port that
- * was a SCSI target (thus was blocked), and failed
- * to return in the alloted time.
- *
- * @data: rport target that failed to reappear in the alloted time.
- **/
+ * fc_timeout_deleted_rport - Timeout handler for a deleted remote port.
+ * @work: rport target that failed to reappear in the allotted time.
+ *
+ * Description: An attempt to delete a remote port blocks, and if it fails
+ * to return in the allotted time this gets called.
+ */
static void
-fc_timeout_deleted_rport(void *data)
+fc_timeout_deleted_rport(struct work_struct *work)
{
- struct fc_rport *rport = (struct fc_rport *)data;
+ struct fc_rport *rport =
+ container_of(work, struct fc_rport, dev_loss_work.work);
struct Scsi_Host *shost = rport_to_shost(rport);
struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
unsigned long flags;
rport->flags &= ~FC_RPORT_DEVLOSS_PENDING;
/*
- * If the port is ONLINE, then it came back. Validate it's still an
- * FCP target. If not, tear down the scsi_target on it.
+ * If the port is ONLINE, then it came back. If it was a SCSI
+ * target, validate it still is. If not, tear down the
+ * scsi_target on it.
*/
if ((rport->port_state == FC_PORTSTATE_ONLINE) &&
- !(rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ (rport->scsi_target_id != -1) &&
+ !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) {
dev_printk(KERN_ERR, &rport->dev,
"blocked FC remote port time out: no longer"
" a FCP target, removing starget\n");
return;
}
+ /* NOOP state - we're flushing workq's */
if (rport->port_state != FC_PORTSTATE_BLOCKED) {
spin_unlock_irqrestore(shost->host_lock, flags);
dev_printk(KERN_ERR, &rport->dev,
- "blocked FC remote port time out: leaving target alone\n");
+ "blocked FC remote port time out: leaving"
+ " rport%s alone\n",
+ (rport->scsi_target_id != -1) ? " and starget" : "");
return;
}
- if (fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) {
+ if ((fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) ||
+ (rport->scsi_target_id == -1)) {
list_del(&rport->peers);
rport->port_state = FC_PORTSTATE_DELETED;
dev_printk(KERN_ERR, &rport->dev,
- "blocked FC remote port time out: removing target\n");
+ "blocked FC remote port time out: removing"
+ " rport%s\n",
+ (rport->scsi_target_id != -1) ? " and starget" : "");
fc_queue_work(shost, &rport->rport_delete_work);
spin_unlock_irqrestore(shost->host_lock, flags);
return;
*/
rport->maxframe_size = -1;
rport->supported_classes = FC_COS_UNSPECIFIED;
- rport->roles = FC_RPORT_ROLE_UNKNOWN;
+ rport->roles = FC_PORT_ROLE_UNKNOWN;
rport->port_state = FC_PORTSTATE_NOTPRESENT;
/* remove the identifiers that aren't used in the consisting binding */
}
/**
- * fc_scsi_scan_rport - called to perform a scsi scan on a remote port.
+ * fc_timeout_fail_rport_io - Timeout handler for a fast io failing on a disconnected SCSI target.
+ * @work: rport to terminate io on.
*
- * @data: remote port to be scanned.
- **/
+ * Notes: Only requests the failure of the io, not that all are flushed
+ * prior to returning.
+ */
static void
-fc_scsi_scan_rport(void *data)
+fc_timeout_fail_rport_io(struct work_struct *work)
{
- struct fc_rport *rport = (struct fc_rport *)data;
+ struct fc_rport *rport =
+ container_of(work, struct fc_rport, fail_io_work.work);
struct Scsi_Host *shost = rport_to_shost(rport);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+
+ if (rport->port_state != FC_PORTSTATE_BLOCKED)
+ return;
+
+ i->f->terminate_rport_io(rport);
+}
+
+/**
+ * fc_scsi_scan_rport - called to perform a scsi scan on a remote port.
+ * @work: remote port to be scanned.
+ */
+static void
+fc_scsi_scan_rport(struct work_struct *work)
+{
+ struct fc_rport *rport =
+ container_of(work, struct fc_rport, scan_work);
+ struct Scsi_Host *shost = rport_to_shost(rport);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
unsigned long flags;
if ((rport->port_state == FC_PORTSTATE_ONLINE) &&
- (rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ (rport->roles & FC_PORT_ROLE_FCP_TARGET) &&
+ !(i->f->disable_target_scan)) {
scsi_scan_target(&rport->dev, rport->channel,
rport->scsi_target_id, SCAN_WILD_CARD, 1);
}
}
-MODULE_AUTHOR("Martin Hicks");
+/**
+ * fc_vport_create - allocates and creates a FC virtual port.
+ * @shost: scsi host the virtual port is connected to.
+ * @channel: Channel on shost port connected to.
+ * @pdev: parent device for vport
+ * @ids: The world wide names, FC4 port roles, etc for
+ * the virtual port.
+ * @ret_vport: The pointer to the created vport.
+ *
+ * Allocates and creates the vport structure, calls the parent host
+ * to instantiate the vport, the completes w/ class and sysfs creation.
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+static int
+fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev,
+ struct fc_vport_identifiers *ids, struct fc_vport **ret_vport)
+{
+ struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
+ struct fc_internal *fci = to_fc_internal(shost->transportt);
+ struct fc_vport *vport;
+ struct device *dev;
+ unsigned long flags;
+ size_t size;
+ int error;
+
+ *ret_vport = NULL;
+
+ if ( ! fci->f->vport_create)
+ return -ENOENT;
+
+ size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size);
+ vport = kzalloc(size, GFP_KERNEL);
+ if (unlikely(!vport)) {
+ printk(KERN_ERR "%s: allocation failure\n", __func__);
+ return -ENOMEM;
+ }
+
+ vport->vport_state = FC_VPORT_UNKNOWN;
+ vport->vport_last_state = FC_VPORT_UNKNOWN;
+ vport->node_name = ids->node_name;
+ vport->port_name = ids->port_name;
+ vport->roles = ids->roles;
+ vport->vport_type = ids->vport_type;
+ if (fci->f->dd_fcvport_size)
+ vport->dd_data = &vport[1];
+ vport->shost = shost;
+ vport->channel = channel;
+ vport->flags = FC_VPORT_CREATING;
+ INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete);
+
+ spin_lock_irqsave(shost->host_lock, flags);
+
+ if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) {
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ kfree(vport);
+ return -ENOSPC;
+ }
+ fc_host->npiv_vports_inuse++;
+ vport->number = fc_host->next_vport_number++;
+ list_add_tail(&vport->peers, &fc_host->vports);
+ get_device(&shost->shost_gendev); /* for fc_host->vport list */
+
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
+ dev = &vport->dev;
+ device_initialize(dev); /* takes self reference */
+ dev->parent = get_device(pdev); /* takes parent reference */
+ dev->release = fc_vport_dev_release;
+ sprintf(dev->bus_id, "vport-%d:%d-%d",
+ shost->host_no, channel, vport->number);
+ transport_setup_device(dev);
+
+ error = device_add(dev);
+ if (error) {
+ printk(KERN_ERR "FC Virtual Port device_add failed\n");
+ goto delete_vport;
+ }
+ transport_add_device(dev);
+ transport_configure_device(dev);
+
+ error = fci->f->vport_create(vport, ids->disable);
+ if (error) {
+ printk(KERN_ERR "FC Virtual Port LLDD Create failed\n");
+ goto delete_vport_all;
+ }
+
+ /*
+ * if the parent isn't the physical adapter's Scsi_Host, ensure
+ * the Scsi_Host at least contains ia symlink to the vport.
+ */
+ if (pdev != &shost->shost_gendev) {
+ error = sysfs_create_link(&shost->shost_gendev.kobj,
+ &dev->kobj, dev->bus_id);
+ if (error)
+ printk(KERN_ERR
+ "%s: Cannot create vport symlinks for "
+ "%s, err=%d\n",
+ __func__, dev->bus_id, error);
+ }
+ spin_lock_irqsave(shost->host_lock, flags);
+ vport->flags &= ~FC_VPORT_CREATING;
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
+ dev_printk(KERN_NOTICE, pdev,
+ "%s created via shost%d channel %d\n", dev->bus_id,
+ shost->host_no, channel);
+
+ *ret_vport = vport;
+
+ return 0;
+
+delete_vport_all:
+ transport_remove_device(dev);
+ device_del(dev);
+delete_vport:
+ transport_destroy_device(dev);
+ spin_lock_irqsave(shost->host_lock, flags);
+ list_del(&vport->peers);
+ put_device(&shost->shost_gendev); /* for fc_host->vport list */
+ fc_host->npiv_vports_inuse--;
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ put_device(dev->parent);
+ kfree(vport);
+
+ return error;
+}
+
+
+/**
+ * fc_vport_terminate - Admin App or LLDD requests termination of a vport
+ * @vport: fc_vport to be terminated
+ *
+ * Calls the LLDD vport_delete() function, then deallocates and removes
+ * the vport from the shost and object tree.
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+int
+fc_vport_terminate(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+ struct device *dev = &vport->dev;
+ unsigned long flags;
+ int stat;
+
+ spin_lock_irqsave(shost->host_lock, flags);
+ if (vport->flags & FC_VPORT_CREATING) {
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ return -EBUSY;
+ }
+ if (vport->flags & (FC_VPORT_DEL)) {
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ return -EALREADY;
+ }
+ vport->flags |= FC_VPORT_DELETING;
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
+ if (i->f->vport_delete)
+ stat = i->f->vport_delete(vport);
+ else
+ stat = -ENOENT;
+
+ spin_lock_irqsave(shost->host_lock, flags);
+ vport->flags &= ~FC_VPORT_DELETING;
+ if (!stat) {
+ vport->flags |= FC_VPORT_DELETED;
+ list_del(&vport->peers);
+ fc_host->npiv_vports_inuse--;
+ put_device(&shost->shost_gendev); /* for fc_host->vport list */
+ }
+ spin_unlock_irqrestore(shost->host_lock, flags);
+
+ if (stat)
+ return stat;
+
+ if (dev->parent != &shost->shost_gendev)
+ sysfs_remove_link(&shost->shost_gendev.kobj, dev->bus_id);
+ transport_remove_device(dev);
+ device_del(dev);
+ transport_destroy_device(dev);
+
+ /*
+ * Removing our self-reference should mean our
+ * release function gets called, which will drop the remaining
+ * parent reference and free the data structure.
+ */
+ put_device(dev); /* for self-reference */
+
+ return 0; /* SUCCESS */
+}
+EXPORT_SYMBOL(fc_vport_terminate);
+
+/**
+ * fc_vport_sched_delete - workq-based delete request for a vport
+ * @work: vport to be deleted.
+ */
+static void
+fc_vport_sched_delete(struct work_struct *work)
+{
+ struct fc_vport *vport =
+ container_of(work, struct fc_vport, vport_delete_work);
+ int stat;
+
+ stat = fc_vport_terminate(vport);
+ if (stat)
+ dev_printk(KERN_ERR, vport->dev.parent,
+ "%s: %s could not be deleted created via "
+ "shost%d channel %d - error %d\n", __func__,
+ vport->dev.bus_id, vport->shost->host_no,
+ vport->channel, stat);
+}
+
+
+/* Original Author: Martin Hicks */
+MODULE_AUTHOR("James Smart");
MODULE_DESCRIPTION("FC Transport Attributes");
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff