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[SCSI] iscsi_transport: export hw address 

Add hw address sysfs file.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Mike Christie 2007-05-30 12:57:08 -05:00 committed by James Bottomley
parent 239a7dc2fe
commit 1819dc8143
3 changed files with 45 additions and 3 deletions
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35
drivers/scsi/scsi_transport_iscsi.c
View File

@ -32,7 +32,7 @@
#define ISCSI_SESSION_ATTRS 11
#define ISCSI_CONN_ATTRS 11
#define ISCSI_HOST_ATTRS 0
#define ISCSI_HOST_ATTRS 1
#define ISCSI_TRANSPORT_VERSION "2.0-724"
struct iscsi_internal {
@ -1197,6 +1197,25 @@ static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO, show_priv_session_##field, \
NULL)
iscsi_priv_session_attr(recovery_tmo, "%d");
/*
* iSCSI host attrs
*/
#define iscsi_host_attr_show(param) \
static ssize_t \
show_host_param_##param(struct class_device *cdev, char *buf) \
{ \
struct Scsi_Host *shost = transport_class_to_shost(cdev); \
struct iscsi_internal *priv = to_iscsi_internal(shost->transportt); \
return priv->iscsi_transport->get_host_param(shost, param, buf); \
}
#define iscsi_host_attr(field, param) \
iscsi_host_attr_show(param) \
static ISCSI_CLASS_ATTR(host, field, S_IRUGO, show_host_param_##param, \
NULL);
iscsi_host_attr(hwaddress, ISCSI_HOST_PARAM_HWADDRESS);
#define SETUP_PRIV_SESSION_RD_ATTR(field) \
do { \
priv->session_attrs[count] = &class_device_attr_priv_sess_##field; \
@ -1220,6 +1239,14 @@ do { \
} \
} while (0)
#define SETUP_HOST_RD_ATTR(field, param_flag) \
do { \
if (tt->host_param_mask & param_flag) { \
priv->host_attrs[count] = &class_device_attr_host_##field; \
count++; \
} \
} while (0)
static int iscsi_session_match(struct attribute_container *cont,
struct device *dev)
{
@ -1321,9 +1348,13 @@ iscsi_register_transport(struct iscsi_transport *tt)
priv->t.host_attrs.ac.class = &iscsi_host_class.class;
priv->t.host_attrs.ac.match = iscsi_host_match;
priv->t.host_size = sizeof(struct iscsi_host);
priv->host_attrs[0] = NULL;
transport_container_register(&priv->t.host_attrs);
SETUP_HOST_RD_ATTR(hwaddress, ISCSI_HOST_HWADDRESS);
BUG_ON(count > ISCSI_HOST_ATTRS);
priv->host_attrs[count] = NULL;
count = 0;
/* connection parameters */
priv->conn_cont.ac.attrs = &priv->conn_attrs[0];
priv->conn_cont.ac.class = &iscsi_connection_class.class;

8
include/scsi/iscsi_if.h
View File

@ -250,6 +250,14 @@ enum iscsi_param {
#define ISCSI_CONN_PORT (1 << ISCSI_PARAM_CONN_PORT)
#define ISCSI_CONN_ADDRESS (1 << ISCSI_PARAM_CONN_ADDRESS)
/* iSCSI HBA params */
enum iscsi_host_param {
ISCSI_HOST_PARAM_HWADDRESS,
ISCSI_HOST_PARAM_MAX,
};
#define ISCSI_HOST_HWADDRESS (1 << ISCSI_HOST_PARAM_HWADDRESS)
#define iscsi_ptr(_handle) ((void*)(unsigned long)_handle)
#define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr)
#define hostdata_session(_hostdata) (iscsi_ptr(*(unsigned long *)_hostdata))

5
include/scsi/scsi_transport_iscsi.h
View File

@ -79,7 +79,8 @@ struct iscsi_transport {
char *name;
unsigned int caps;
/* LLD sets this to indicate what values it can export to sysfs */
unsigned int param_mask;
uint64_t param_mask;
uint64_t host_param_mask;
struct scsi_host_template *host_template;
/* LLD connection data size */
int conndata_size;
@ -105,6 +106,8 @@ struct iscsi_transport {
enum iscsi_param param, char *buf);
int (*get_session_param) (struct iscsi_cls_session *session,
enum iscsi_param param, char *buf);
int (*get_host_param) (struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf);
int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
char *data, uint32_t data_size);
void (*get_stats) (struct iscsi_cls_conn *conn,