[SCSI] fc transport: add fc_host system_hostname attribute and u64_to_wwn()
This patch updates the fc transport for the following:
- Addition of a new attribute "system_hostname" which can be
used to set the fully qualified hostname that the fc_host
is attached to. The fc_host can then register this string
as the FDMI-based host name attribute.
Note: for NPIV, a fc_host could be associated with a system which
is not the local system.
- Add the inline function u64_to_wwn(), which is the inverse of the
existing wwn_to_u64() function.
- Slight reorg, just to keep dynamic attributes with each other, etc
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index b7f62b8..c74be5d 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -312,7 +312,6 @@
u64 permanent_port_name;
u32 supported_classes;
u8 supported_fc4s[FC_FC4_LIST_SIZE];
- char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
u32 supported_speeds;
u32 maxframe_size;
char serial_number[FC_SERIAL_NUMBER_SIZE];
@@ -324,6 +323,8 @@
u8 active_fc4s[FC_FC4_LIST_SIZE];
u32 speed;
u64 fabric_name;
+ char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
+ char system_hostname[FC_SYMBOLIC_NAME_SIZE];
/* Private (Transport-managed) Attributes */
enum fc_tgtid_binding_type tgtid_bind_type;
@@ -354,8 +355,6 @@
(((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
#define fc_host_supported_fc4s(x) \
(((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s)
-#define fc_host_symbolic_name(x) \
- (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
#define fc_host_supported_speeds(x) \
(((struct fc_host_attrs *)(x)->shost_data)->supported_speeds)
#define fc_host_maxframe_size(x) \
@@ -374,6 +373,10 @@
(((struct fc_host_attrs *)(x)->shost_data)->speed)
#define fc_host_fabric_name(x) \
(((struct fc_host_attrs *)(x)->shost_data)->fabric_name)
+#define fc_host_symbolic_name(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
+#define fc_host_system_hostname(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->system_hostname)
#define fc_host_tgtid_bind_type(x) \
(((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type)
#define fc_host_rports(x) \
@@ -410,6 +413,7 @@
void (*get_host_speed)(struct Scsi_Host *);
void (*get_host_fabric_name)(struct Scsi_Host *);
void (*get_host_symbolic_name)(struct Scsi_Host *);
+ void (*set_host_system_hostname)(struct Scsi_Host *);
struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
void (*reset_fc_host_stats)(struct Scsi_Host *);
@@ -457,6 +461,7 @@
unsigned long show_host_speed:1;
unsigned long show_host_fabric_name:1;
unsigned long show_host_symbolic_name:1;
+ unsigned long show_host_system_hostname:1;
};
@@ -492,6 +497,25 @@
return result;
}
+static inline u64 wwn_to_u64(u8 *wwn)
+{
+ return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 |
+ (u64)wwn[2] << 40 | (u64)wwn[3] << 32 |
+ (u64)wwn[4] << 24 | (u64)wwn[5] << 16 |
+ (u64)wwn[6] << 8 | (u64)wwn[7];
+}
+
+static inline void u64_to_wwn(u64 inm, u8 *wwn)
+{
+ wwn[0] = (inm >> 56) & 0xff;
+ wwn[1] = (inm >> 48) & 0xff;
+ wwn[2] = (inm >> 40) & 0xff;
+ wwn[3] = (inm >> 32) & 0xff;
+ wwn[4] = (inm >> 24) & 0xff;
+ wwn[5] = (inm >> 16) & 0xff;
+ wwn[6] = (inm >> 8) & 0xff;
+ wwn[7] = inm & 0xff;
+}
struct scsi_transport_template *fc_attach_transport(
struct fc_function_template *);
@@ -503,12 +527,4 @@
void fc_remote_port_rolechg(struct fc_rport *rport, u32 roles);
int scsi_is_fc_rport(const struct device *);
-static inline u64 wwn_to_u64(u8 *wwn)
-{
- return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 |
- (u64)wwn[2] << 40 | (u64)wwn[3] << 32 |
- (u64)wwn[4] << 24 | (u64)wwn[5] << 16 |
- (u64)wwn[6] << 8 | (u64)wwn[7];
-}
-
#endif /* SCSI_TRANSPORT_FC_H */