[PATCH 0/5] scsi: FDMI enhancement

[PATCH 0/5] scsi: FDMI enhancement

[Javed Hasan]

This series has FDMI enhancement code.
FDMI V2 attributes added for RHBA and RPA.
If registration get failed with FDMI V1 attributes,
than fall back to the registration with FDMI V2 attributes.

Kindly apply this series to scsi-queue at your earliest convenience.

Javed Hasan (5):
  libfc: initialisation of RHBA and RPA attributes
  qedf: Added vendor identifier attribute
  libfc: Added FDMI-2 attributes
  libfc: FDMI enhancement.
  fc: FDMI enhancement

 drivers/scsi/libfc/fc_encode.h   | 248 ++++++++++++++++++++++++++++++-
 drivers/scsi/libfc/fc_lport.c    |  88 ++++++++++-
 drivers/scsi/qedf/qedf_main.c    |   3 +
 include/scsi/fc/fc_ms.h          |  55 ++++++-
 include/scsi/scsi_transport_fc.h |  25 +++-
 5 files changed, 401 insertions(+), 18 deletions(-)

-- 
2.26.2

[PATCH 1/5] libfc: initialisation of RHBA and RPA attributes

[Javed Hasan]

 -initialisation of RHBA and RPA attributes

Signed-off-by: Javed Hasan <jhasan@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
---
 drivers/scsi/libfc/fc_lport.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index cf36c8cb5493..72d13a2a4691 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -93,7 +93,10 @@
 #define FC_LOCAL_PTP_FID_LO   0x010101
 #define FC_LOCAL_PTP_FID_HI   0x010102
 
-#define	DNS_DELAY	      3 /* Discovery delay after RSCN (in seconds)*/
+#define	DNS_DELAY	3 /* Discovery delay after RSCN (in seconds)*/
+#define MAX_CT_PAYLOAD	2048
+#define DISCOVERED_PORTS	4
+#define NUMBER_OF_PORTS	1
 
 static void fc_lport_error(struct fc_lport *, struct fc_frame *);
 
@@ -1859,8 +1862,27 @@ int fc_lport_init(struct fc_lport *lport)
 		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_1GBIT;
 	if (lport->link_supported_speeds & FC_PORTSPEED_10GBIT)
 		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_10GBIT;
+	if (lport->link_supported_speeds & FC_PORTSPEED_40GBIT)
+		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_40GBIT;
+	if (lport->link_supported_speeds & FC_PORTSPEED_100GBIT)
+		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_100GBIT;
+	if (lport->link_supported_speeds & FC_PORTSPEED_25GBIT)
+		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_25GBIT;
+	if (lport->link_supported_speeds & FC_PORTSPEED_50GBIT)
+		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_50GBIT;
+	if (lport->link_supported_speeds & FC_PORTSPEED_100GBIT)
+		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_100GBIT;
+
 	fc_fc4_add_lport(lport);
 
+	fc_host_num_discovered_ports(lport->host) = DISCOVERED_PORTS;
+	fc_host_port_state(lport->host) = FC_PORTSTATE_ONLINE;
+	fc_host_max_ct_payload(lport->host) = MAX_CT_PAYLOAD;
+	fc_host_num_ports(lport->host) = NUMBER_OF_PORTS;
+	fc_host_bootbios_state(lport->host) = 0X00000000;
+	snprintf(fc_host_bootbios_version(lport->host),
+		FC_SYMBOLIC_NAME_SIZE, "%s", "Unknown");
+
 	return 0;
 }
 EXPORT_SYMBOL(fc_lport_init);
-- 
2.26.2

[PATCH 2/5] qedf: Added vendor identifier attribute

[Javed Hasan]

-Added vendor identifier attribute.

Signed-off-by: Javed Hasan <jhasan@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
---
 drivers/scsi/qedf/qedf_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 9c7efdf40dd5..136aef247c10 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -1715,6 +1715,9 @@ static void qedf_setup_fdmi(struct qedf_ctx *qedf)
 	    FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
 	    FW_ENGINEERING_VERSION);
 
+	snprintf(fc_host_vendor_identifier(lport->host),
+		FC_VENDOR_IDENTIFIER, "%s", "Marvell");
+
 }
 
 static int qedf_lport_setup(struct qedf_ctx *qedf)
-- 
2.26.2

[PATCH 3/5] libfc: Added FDMI-2 attributes

[Javed Hasan]

All the attributes added for RHBA and RPA registration.
Fall back mechanism is added in between RBHA V2 and
RHBA V1 attributes. In case RHBA get failed
for RBHA V2 attributes, then we fall back to  RHBA V1
attributes registration.

Signed-off-by: Javed Hasan <jhasan@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
---
 drivers/scsi/libfc/fc_encode.h   | 248 ++++++++++++++++++++++++++++++-
 include/scsi/scsi_transport_fc.h |  25 +++-
 2 files changed, 269 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/libfc/fc_encode.h b/drivers/scsi/libfc/fc_encode.h
index 9ea4ceadb559..9957476e2ac5 100644
--- a/drivers/scsi/libfc/fc_encode.h
+++ b/drivers/scsi/libfc/fc_encode.h
@@ -192,10 +192,11 @@ static inline int fc_ct_ms_fill(struct fc_lport *lport,
 	struct fc_fdmi_attr_entry *entry;
 	struct fs_fdmi_attrs *hba_attrs;
 	int numattrs = 0;
+	struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
 
 	switch (op) {
 	case FC_FDMI_RHBA:
-		numattrs = 10;
+		numattrs = 11;
 		len = sizeof(struct fc_fdmi_rhba);
 		len -= sizeof(struct fc_fdmi_attr_entry);
 		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
@@ -209,8 +210,21 @@ static inline int fc_ct_ms_fill(struct fc_lport *lport,
 		len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
 		len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
 		len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
+		len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
+
+		if (fc_host->fdmi_version == FDMI_V2) {
+			numattrs += 7;
+			len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
+			len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
+			len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
+			len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
+			len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
+			len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
+			len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
+		}
+
 		ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
-				    FC_FDMI_SUBTYPE);
+				FC_FDMI_SUBTYPE);
 
 		/* HBA Identifier */
 		put_unaligned_be64(lport->wwpn, &ct->payload.rhba.hbaid.id);
@@ -315,7 +329,7 @@ static inline int fc_ct_ms_fill(struct fc_lport *lport,
 				   &entry->type);
 		put_unaligned_be16(len, &entry->len);
 		fc_ct_ms_fill_attr(entry,
-			fc_host_optionrom_version(lport->host),
+			"unknown",
 			FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
 
 		/* Firmware Version */
@@ -343,6 +357,100 @@ static inline int fc_ct_ms_fill(struct fc_lport *lport,
 			"%s v%s",
 			init_utsname()->sysname,
 			init_utsname()->release);
+
+		/* Max CT payload */
+		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN);
+		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+		len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
+		put_unaligned_be16(FC_FDMI_HBA_ATTR_MAXCTPAYLOAD,
+				&entry->type);
+		put_unaligned_be16(len, &entry->len);
+		put_unaligned_be32(fc_host_max_ct_payload(lport->host),
+				&entry->value);
+
+		if (fc_host->fdmi_version == FDMI_V2) {
+			/* Node symbolic name */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_NODESYMBLNAME,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			fc_ct_ms_fill_attr(entry,
+					fc_host_symbolic_name(lport->host),
+					FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN);
+
+			/* Vendor specific info */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(0,
+					&entry->value);
+
+			/* Number of ports */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_NUMBEROFPORTS,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_num_ports(lport->host),
+					&entry->value);
+
+			/* Fabric name */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_FABRICNAME,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be64(fc_host_fabric_name(lport->host),
+					&entry->value);
+
+			/* BIOS version */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_FABRICNAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_BIOSVERSION,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			fc_ct_ms_fill_attr(entry,
+					fc_host_bootbios_version(lport->host),
+					FC_FDMI_HBA_ATTR_BIOSVERSION_LEN);
+
+			/* BIOS state */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_BIOSVERSION_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_BIOSSTATE,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_bootbios_state(lport->host),
+					&entry->value);
+
+			/* Vendor identifier  */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_HBA_ATTR_BIOSSTATE_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
+			put_unaligned_be16(FC_FDMI_HBA_ATTR_VENDORIDENTIFIER,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			fc_ct_ms_fill_attr(entry,
+					fc_host_vendor_identifier(lport->host),
+					FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN);
+		}
+
 		break;
 	case FC_FDMI_RPA:
 		numattrs = 6;
@@ -355,6 +463,24 @@ static inline int fc_ct_ms_fill(struct fc_lport *lport,
 		len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
 		len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
 		len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
+
+
+		if (fc_host->fdmi_version == FDMI_V2) {
+			numattrs += 10;
+
+			len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
+			len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
+			len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
+			len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
+			len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
+			len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTID_LEN;
+
+		}
+
 		ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
 				    FC_FDMI_SUBTYPE);
 
@@ -443,6 +569,122 @@ static inline int fc_ct_ms_fill(struct fc_lport *lport,
 			fc_ct_ms_fill_attr(entry,
 				init_utsname()->nodename,
 				FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
+
+
+		if (fc_host->fdmi_version == FDMI_V2) {
+
+			/* Node name */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_NODENAME,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be64(fc_host_node_name(lport->host),
+					&entry->value);
+
+			/* Port name  */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_NODENAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTNAME,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be64(lport->wwpn,
+					&entry->value);
+
+			/* Port symbolic name */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_PORTNAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_SYMBOLICNAME,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			fc_ct_ms_fill_attr(entry,
+					fc_host_symbolic_name(lport->host),
+					FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN);
+
+			/* Port type */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTTYPE,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_port_type(lport->host),
+					&entry->value);
+
+			/* Supported class of service */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_PORTTYPE_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_supported_classes(lport->host),
+					&entry->value);
+
+			/* Port Fabric name */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_FABRICNAME,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be64(fc_host_fabric_name(lport->host),
+					&entry->value);
+
+			/* Port active FC-4 */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_FABRICNAME_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTFC4TYPE,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			memcpy(&entry->value, fc_host_active_fc4s(lport->host),
+					FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN);
+
+			/* Port state */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTSTATE,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_port_state(lport->host),
+					&entry->value);
+
+			/* Discovered ports */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_PORTSTATE_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_DISCOVEREDPORTS,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_num_discovered_ports(lport->host),
+					&entry->value);
+
+			/* Port ID */
+			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
+					FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN);
+			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTID_LEN;
+			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTID,
+					&entry->type);
+			put_unaligned_be16(len, &entry->len);
+			put_unaligned_be32(fc_host_port_id(lport->host),
+					&entry->value);
+		}
+
 		break;
 	case FC_FDMI_DPRT:
 		len = sizeof(struct fc_fdmi_dprt);
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 14214ee121ad..2300bfd10694 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -517,10 +517,11 @@ enum fc_host_event_code  {
  * managed by the transport w/o driver interaction.
  */
 
+#define FC_VENDOR_IDENTIFIER	8
 #define FC_FC4_LIST_SIZE		32
 #define FC_SYMBOLIC_NAME_SIZE		256
 #define FC_VERSION_STRING_SIZE		64
-#define FC_SERIAL_NUMBER_SIZE		80
+#define FC_SERIAL_NUMBER_SIZE		64
 
 struct fc_host_attrs {
 	/* Fixed Attributes */
@@ -532,6 +533,10 @@ struct fc_host_attrs {
 	u32 supported_speeds;
 	u32 maxframe_size;
 	u16 max_npiv_vports;
+	u32 max_ct_payload;
+	u32 num_ports;
+	u32 num_discovered_ports;
+	u32 bootbios_state;
 	char serial_number[FC_SERIAL_NUMBER_SIZE];
 	char manufacturer[FC_SERIAL_NUMBER_SIZE];
 	char model[FC_SYMBOLIC_NAME_SIZE];
@@ -540,6 +545,9 @@ struct fc_host_attrs {
 	char driver_version[FC_VERSION_STRING_SIZE];
 	char firmware_version[FC_VERSION_STRING_SIZE];
 	char optionrom_version[FC_VERSION_STRING_SIZE];
+	char vendor_identifier[FC_VENDOR_IDENTIFIER];
+	char bootbios_version[FC_SYMBOLIC_NAME_SIZE];
+
 
 	/* Dynamic Attributes */
 	u32 port_id;
@@ -573,6 +581,9 @@ struct fc_host_attrs {
 
 	/* bsg support */
 	struct request_queue *rqst_q;
+
+	/* FDMI support version*/
+	u8 fdmi_version;
 };
 
 #define shost_to_fc_host(x) \
@@ -652,6 +663,18 @@ struct fc_host_attrs {
 	(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
 #define fc_host_dev_loss_tmo(x) \
 	(((struct fc_host_attrs *)(x)->shost_data)->dev_loss_tmo)
+#define fc_host_max_ct_payload(x)  \
+	(((struct fc_host_attrs *)(x)->shost_data)->max_ct_payload)
+#define fc_host_vendor_identifier(x)  \
+	(((struct fc_host_attrs *)(x)->shost_data)->vendor_identifier)
+#define fc_host_num_discovered_ports(x)  \
+	(((struct fc_host_attrs *)(x)->shost_data)->num_discovered_ports)
+#define fc_host_num_ports(x)  \
+	(((struct fc_host_attrs *)(x)->shost_data)->num_ports)
+#define fc_host_bootbios_version(x)  \
+	(((struct fc_host_attrs *)(x)->shost_data)->bootbios_version)
+#define fc_host_bootbios_state(x)  \
+	(((struct fc_host_attrs *)(x)->shost_data)->bootbios_state)
 
 /* The functions by which the transport class and the driver communicate */
 struct fc_function_template {
-- 
2.26.2

[PATCH 4/5] libfc: FDMI enhancement.

[Javed Hasan]

Added all the attributes for RHBA and RPA registration.
Fall back mechanism is added in between RBHA V2 and
RHBA V1 attributes. In case RHBA get failed
for RBHA V2 attributes, then we fall back to  RHBA V1
attributes registration.

Signed-off-by: Javed Hasan <jhasan@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
---
 drivers/scsi/libfc/fc_lport.c | 64 +++++++++++++++++++++++++++++++----
 1 file changed, 58 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 72d13a2a4691..fe95b8cf43e9 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1188,7 +1188,7 @@ static void fc_lport_ms_resp(struct fc_seq *sp, struct fc_frame *fp,
 	struct fc_lport *lport = lp_arg;
 	struct fc_frame_header *fh;
 	struct fc_ct_hdr *ct;
-
+	struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
 	FC_LPORT_DBG(lport, "Received a ms %s\n", fc_els_resp_type(fp));
 
 	if (fp == ERR_PTR(-FC_EX_CLOSED))
@@ -1222,7 +1222,13 @@ static void fc_lport_ms_resp(struct fc_seq *sp, struct fc_frame *fp,
 
 		switch (lport->state) {
 		case LPORT_ST_RHBA:
-			if (ntohs(ct->ct_cmd) == FC_FS_ACC)
+			if ((ntohs(ct->ct_cmd) == FC_FS_RJT) && fc_host->fdmi_version == FDMI_V2) {
+				FC_LPORT_DBG(lport, "Error for FDMI-V2, fall back to FDMI-V1\n");
+				fc_host->fdmi_version = FDMI_V1;
+
+				fc_lport_enter_ms(lport, LPORT_ST_RHBA);
+
+			} else if (ntohs(ct->ct_cmd) == FC_FS_ACC)
 				fc_lport_enter_ms(lport, LPORT_ST_RPA);
 			else /* Error Skip RPA */
 				fc_lport_enter_scr(lport);
@@ -1436,7 +1442,7 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
 	int size = sizeof(struct fc_ct_hdr);
 	size_t len;
 	int numattrs;
-
+	struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
 	lockdep_assert_held(&lport->lp_mutex);
 
 	FC_LPORT_DBG(lport, "Entered %s state from %s state\n",
@@ -1449,10 +1455,10 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
 	case LPORT_ST_RHBA:
 		cmd = FC_FDMI_RHBA;
 		/* Number of HBA Attributes */
-		numattrs = 10;
+		numattrs = 11;
 		len = sizeof(struct fc_fdmi_rhba);
 		len -= sizeof(struct fc_fdmi_attr_entry);
-		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
+
 		len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
 		len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
 		len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
@@ -1463,6 +1469,21 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
 		len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
 		len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
 		len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
+		len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
+
+
+		if (fc_host->fdmi_version == FDMI_V2) {
+			numattrs += 7;
+			len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
+			len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
+			len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
+			len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
+			len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
+			len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
+			len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
+		}
+
+		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
 
 		size += len;
 		break;
@@ -1472,7 +1493,6 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
 		numattrs = 6;
 		len = sizeof(struct fc_fdmi_rpa);
 		len -= sizeof(struct fc_fdmi_attr_entry);
-		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
 		len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
 		len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
 		len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
@@ -1480,6 +1500,22 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
 		len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
 		len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
 
+		if (fc_host->fdmi_version == FDMI_V2) {
+			numattrs += 10;
+			len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
+			len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
+			len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
+			len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
+			len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
+			len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
+			len += FC_FDMI_PORT_ATTR_PORTID_LEN;
+		}
+
+		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
+
 		size += len;
 		break;
 	case LPORT_ST_DPRT:
@@ -1549,6 +1585,7 @@ static void fc_lport_timeout(struct work_struct *work)
 	struct fc_lport *lport =
 		container_of(work, struct fc_lport,
 			     retry_work.work);
+	struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
 
 	mutex_lock(&lport->lp_mutex);
 
@@ -1576,6 +1613,13 @@ static void fc_lport_timeout(struct work_struct *work)
 		fc_lport_enter_fdmi(lport);
 		break;
 	case LPORT_ST_RHBA:
+		if (fc_host->fdmi_version == FDMI_V2) {
+			FC_LPORT_DBG(lport, "timeout for FDMI-V2 RHBA,fall back to FDMI-V1\n");
+			fc_host->fdmi_version = FDMI_V1;
+			fc_lport_enter_ms(lport, LPORT_ST_RHBA);
+			break;
+		}
+		fallthrough;
 	case LPORT_ST_RPA:
 	case LPORT_ST_DHBA:
 	case LPORT_ST_DPRT:
@@ -1842,6 +1886,13 @@ EXPORT_SYMBOL(fc_lport_config);
  */
 int fc_lport_init(struct fc_lport *lport)
 {
+	struct fc_host_attrs *fc_host;
+
+	fc_host = shost_to_fc_host(lport->host);
+
+	/* Set FDMI version to FDMI-2 specification*/
+	fc_host->fdmi_version = FDMI_V2;
+
 	fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
 	fc_host_node_name(lport->host) = lport->wwnn;
 	fc_host_port_name(lport->host) = lport->wwpn;
@@ -1850,6 +1901,7 @@ int fc_lport_init(struct fc_lport *lport)
 	       sizeof(fc_host_supported_fc4s(lport->host)));
 	fc_host_supported_fc4s(lport->host)[2] = 1;
 	fc_host_supported_fc4s(lport->host)[7] = 1;
+	fc_host_num_discovered_ports(lport->host) = 4;
 
 	/* This value is also unchanging */
 	memset(fc_host_active_fc4s(lport->host), 0,
-- 
2.26.2

[PATCH 5/5] fc: FDMI enhancement

[Javed Hasan]

Added RHBA and RPA attributes type and length.
As par FC_GC_7 document section "Table 400 – Attribute Entry Types and associated Values"
ascii type attributes length can be vary from "4 to 256 byte".
If we keep all RHBA ascii attributes length 256 then total length is 
going upto 2750, which is far more than 2048 (max frame size).

In libfc we do have logic to split FCP commands but not for CT commands.
Practically all version/names get covered with in 64 bytes except OS 
name, for that we need 128 bytes.
Hence length of all RBHA ascii attributes length reduced to 64 bytes
and 128 bytes in case OS name.

RPA attributes total length is with in frame size.

Signed-off-by: Javed Hasan <jhasan@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
---
 include/scsi/fc/fc_ms.h | 55 +++++++++++++++++++++++++++++++++++------
 1 file changed, 48 insertions(+), 7 deletions(-)

diff --git a/include/scsi/fc/fc_ms.h b/include/scsi/fc/fc_ms.h
index 800d53dc9470..00191695233a 100644
--- a/include/scsi/fc/fc_ms.h
+++ b/include/scsi/fc/fc_ms.h
@@ -24,6 +24,12 @@
  */
 #define	FC_FDMI_SUBTYPE	    0x10 /* fs_ct_hdr.ct_fs_subtype */
 
+/*
+ * Management server FDMI specifications.
+ */
+#define	FDMI_V1	    1 /* FDMI version 1 specifications */
+#define	FDMI_V2	    2 /* FDMI version 2 specifications */
+
 /*
  * Management server FDMI Requests.
  */
@@ -57,6 +63,13 @@ enum fc_fdmi_hba_attr_type {
 	FC_FDMI_HBA_ATTR_FIRMWAREVERSION = 0x0009,
 	FC_FDMI_HBA_ATTR_OSNAMEVERSION = 0x000A,
 	FC_FDMI_HBA_ATTR_MAXCTPAYLOAD = 0x000B,
+	FC_FDMI_HBA_ATTR_NODESYMBLNAME = 0x000C,
+	FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO = 0x000D,
+	FC_FDMI_HBA_ATTR_NUMBEROFPORTS = 0x000E,
+	FC_FDMI_HBA_ATTR_FABRICNAME = 0x000F,
+	FC_FDMI_HBA_ATTR_BIOSVERSION = 0x0010,
+	FC_FDMI_HBA_ATTR_BIOSSTATE = 0x0011,
+	FC_FDMI_HBA_ATTR_VENDORIDENTIFIER = 0x00E0,
 };
 
 /*
@@ -65,14 +78,21 @@ enum fc_fdmi_hba_attr_type {
 #define FC_FDMI_HBA_ATTR_NODENAME_LEN		8
 #define FC_FDMI_HBA_ATTR_MANUFACTURER_LEN	64
 #define FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN	64
-#define FC_FDMI_HBA_ATTR_MODEL_LEN		256
-#define FC_FDMI_HBA_ATTR_MODELDESCR_LEN		256
-#define FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN	256
-#define FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN	256
-#define FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN	256
-#define FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN	256
-#define FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN	256
+#define FC_FDMI_HBA_ATTR_MODEL_LEN		64
+#define FC_FDMI_HBA_ATTR_MODELDESCR_LEN		64
+#define FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN	64
+#define FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN	64
+#define FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN	64
+#define FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN	64
+#define FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN	128
 #define FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN	4
+#define FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN	64
+#define FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN	4
+#define FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN	4
+#define FC_FDMI_HBA_ATTR_FABRICNAME_LEN	8
+#define FC_FDMI_HBA_ATTR_BIOSVERSION_LEN	64
+#define FC_FDMI_HBA_ATTR_BIOSSTATE_LEN    4
+#define FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN 8
 
 /*
  * Port Attribute Type
@@ -84,6 +104,16 @@ enum fc_fdmi_port_attr_type {
 	FC_FDMI_PORT_ATTR_MAXFRAMESIZE = 0x0004,
 	FC_FDMI_PORT_ATTR_OSDEVICENAME = 0x0005,
 	FC_FDMI_PORT_ATTR_HOSTNAME = 0x0006,
+	FC_FDMI_PORT_ATTR_NODENAME = 0x0007,
+	FC_FDMI_PORT_ATTR_PORTNAME = 0x0008,
+	FC_FDMI_PORT_ATTR_SYMBOLICNAME = 0x0009,
+	FC_FDMI_PORT_ATTR_PORTTYPE = 0x000A,
+	FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC = 0x000B,
+	FC_FDMI_PORT_ATTR_FABRICNAME = 0x000C,
+	FC_FDMI_PORT_ATTR_CURRENTFC4TYPE = 0x000D,
+	FC_FDMI_PORT_ATTR_PORTSTATE = 0x101,
+	FC_FDMI_PORT_ATTR_DISCOVEREDPORTS = 0x102,
+	FC_FDMI_PORT_ATTR_PORTID = 0x103,
 };
 
 /*
@@ -95,6 +125,17 @@ enum fc_fdmi_port_attr_type {
 #define FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN	4
 #define FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN	256
 #define FC_FDMI_PORT_ATTR_HOSTNAME_LEN		256
+#define FC_FDMI_PORT_ATTR_NODENAME_LEN		8
+#define FC_FDMI_PORT_ATTR_PORTNAME_LEN		8
+#define FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN	256
+#define FC_FDMI_PORT_ATTR_PORTTYPE_LEN		4
+#define FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN	4
+#define FC_FDMI_PORT_ATTR_FABRICNAME_LEN	8
+#define FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN	32
+#define FC_FDMI_PORT_ATTR_PORTSTATE_LEN		4
+#define FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN	4
+#define FC_FDMI_PORT_ATTR_PORTID_LEN		4
+
 
 /*
  * HBA Attribute ID
-- 
2.26.2

Re: [PATCH 0/5] scsi: FDMI enhancement

[Martin K. Petersen]

Javed,

> This series has FDMI enhancement code.
> FDMI V2 attributes added for RHBA and RPA.
> If registration get failed with FDMI V1 attributes,
> than fall back to the registration with FDMI V2 attributes.

Applied to 5.14/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

Re: [PATCH 0/5] scsi: FDMI enhancement

[Martin K. Petersen]

On Thu, 3 Jun 2021 05:16:18 -0700, Javed Hasan wrote:

> This series has FDMI enhancement code.
> FDMI V2 attributes added for RHBA and RPA.
> If registration get failed with FDMI V1 attributes,
> than fall back to the registration with FDMI V2 attributes.
> 
> Kindly apply this series to scsi-queue at your earliest convenience.
> 
> [...]

Applied to 5.14/scsi-queue, thanks!

[1/5] libfc: initialisation of RHBA and RPA attributes
      https://git.kernel.org/mkp/scsi/c/0726af6bfc6b
[2/5] qedf: Added vendor identifier attribute
      https://git.kernel.org/mkp/scsi/c/adb98ec72b72
[3/5] libfc: Added FDMI-2 attributes
      https://git.kernel.org/mkp/scsi/c/82897fefab68
[4/5] libfc: FDMI enhancement.
      https://git.kernel.org/mkp/scsi/c/974db67a518b
[5/5] fc: FDMI enhancement
      https://git.kernel.org/mkp/scsi/c/49d3e5996155

-- 
Martin K. Petersen	Oracle Linux Engineering