[SCSI] libfc: Add support for FDMI
This patch adds support for Fabric Device Management
Interface as per FC-GS-4 spec. in libfc. Any driver
making use of libfc can enable fdmi state machine
for a given lport.
If lport has enabled FDMI support the lport state
machine will transition into FDMI after completing
the DNS states and before entering the SCR state.
The FDMI state transition is such that if there is an
error, it won't stop the lport state machine from
transitioning and the it will behave as if there was
no FDMI support.
The FDMI HBA attributes are registed with the Management
server via Register HBA (RHBA) command and the port
attributes are reigstered using the Register Port(RPA)
command.
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Acked-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 6a3922f..8f9dfba 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -30,6 +30,7 @@
#include <scsi/fc/fc_fcp.h>
#include <scsi/fc/fc_ns.h>
+#include <scsi/fc/fc_ms.h>
#include <scsi/fc/fc_els.h>
#include <scsi/fc/fc_gs.h>
@@ -52,6 +53,8 @@
* @LPORT_ST_RPN_ID: Register port name by ID (RPN_ID) sent
* @LPORT_ST_RFT_ID: Register Fibre Channel types by ID (RFT_ID) sent
* @LPORT_ST_RFF_ID: Register FC-4 Features by ID (RFF_ID) sent
+ * @LPORT_ST_FDMI: Waiting for mgmt server rport to become ready
+ * @LPORT_ST_RHBA:
* @LPORT_ST_SCR: State Change Register (SCR) sent
* @LPORT_ST_READY: Ready for use
* @LPORT_ST_LOGO: Local port logout (LOGO) sent
@@ -66,6 +69,11 @@
LPORT_ST_RSPN_ID,
LPORT_ST_RFT_ID,
LPORT_ST_RFF_ID,
+ LPORT_ST_FDMI,
+ LPORT_ST_RHBA,
+ LPORT_ST_RPA,
+ LPORT_ST_DHBA,
+ LPORT_ST_DPRT,
LPORT_ST_SCR,
LPORT_ST_READY,
LPORT_ST_LOGO,
@@ -797,6 +805,7 @@
* @host: The SCSI host associated with a local port
* @ema_list: Exchange manager anchor list
* @dns_rdata: The directory server remote port
+ * @ms_rdata: The management server remote port
* @ptp_rdata: Point to point remote port
* @scsi_priv: FCP layer internal data
* @disc: Discovery context
@@ -842,6 +851,7 @@
struct Scsi_Host *host;
struct list_head ema_list;
struct fc_rport_priv *dns_rdata;
+ struct fc_rport_priv *ms_rdata;
struct fc_rport_priv *ptp_rdata;
void *scsi_priv;
struct fc_disc disc;
@@ -877,6 +887,7 @@
u32 does_npiv:1;
u32 npiv_enabled:1;
u32 point_to_multipoint:1;
+ u32 fdmi_enabled:1;
u32 mfs;
u8 max_retry_count;
u8 max_rport_retry_count;