[SCSI] bfa: FCS authentication related changes.

Made FCS authentication related changes to state machines and header
files.

Made changes in FCS state machines to handle the case when secret
string is NULL.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/bfa/bfa_fcs_lport.c

@@ -931,6 +931,8 @@ bfa_fcs_port_get_attr(struct bfa_fcs_port_s *port,
 	if (port->fabric) {
 		port_attr->port_type = bfa_fcs_fabric_port_type(port->fabric);
 		port_attr->loopback = bfa_fcs_fabric_is_loopback(port->fabric);
+		port_attr->authfail =
+				bfa_fcs_fabric_is_auth_failed(port->fabric);
 		port_attr->fabric_name = bfa_fcs_port_get_fabric_name(port);
 		memcpy(port_attr->fabric_ip_addr,
 		       bfa_fcs_port_get_fabric_ipaddr(port),

drivers/scsi/bfa/fabric.c

@@ -895,6 +895,12 @@ bfa_fcs_fabric_is_loopback(struct bfa_fcs_fabric_s *fabric)
 	return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_loopback);
 }
 
+bfa_boolean_t
+bfa_fcs_fabric_is_auth_failed(struct bfa_fcs_fabric_s *fabric)
+{
+	return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_auth_failed);
+}
+
 enum bfa_pport_type
 bfa_fcs_fabric_port_type(struct bfa_fcs_fabric_s *fabric)
 {

drivers/scsi/bfa/fcs_fabric.h

@@ -47,6 +47,7 @@ void            bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric,
 			struct fchs_s *fchs, u16 len);
 u16        bfa_fcs_fabric_vport_count(struct bfa_fcs_fabric_s *fabric);
 bfa_boolean_t   bfa_fcs_fabric_is_loopback(struct bfa_fcs_fabric_s *fabric);
+bfa_boolean_t	bfa_fcs_fabric_is_auth_failed(struct bfa_fcs_fabric_s *fabric);
 enum bfa_pport_type bfa_fcs_fabric_port_type(struct bfa_fcs_fabric_s *fabric);
 void     	bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric);
 void bfa_fcs_fabric_port_delete_comp(struct bfa_fcs_fabric_s *fabric);

drivers/scsi/bfa/include/defs/bfa_defs_auth.h

@@ -23,6 +23,7 @@
 #define PRIVATE_KEY			19009
 #define KEY_LEN				32399
 #define BFA_AUTH_SECRET_STRING_LEN	256
+#define BFA_AUTH_FAIL_NO_PASSWORD	0xFE
 #define BFA_AUTH_FAIL_TIMEOUT		0xFF
 
 /**
@@ -41,6 +42,27 @@ enum bfa_auth_status {
 	BFA_AUTH_STATUS_UNKNOWN = 9,	/*  authentication status unknown */
 };
 
+enum bfa_auth_rej_code {
+	BFA_AUTH_RJT_CODE_AUTH_FAILURE   = 1, /* auth failure */
+	BFA_AUTH_RJT_CODE_LOGICAL_ERR    = 2, /* logical error */
+};
+
+/**
+ * Authentication reject codes
+ */
+enum bfa_auth_rej_code_exp {
+	BFA_AUTH_MECH_NOT_USABLE        = 1, /* auth. mechanism not usable */
+	BFA_AUTH_DH_GROUP_NOT_USABLE    = 2, /* DH Group not usable */
+	BFA_AUTH_HASH_FUNC_NOT_USABLE   = 3, /* hash Function not usable */
+	BFA_AUTH_AUTH_XACT_STARTED      = 4, /* auth xact started */
+	BFA_AUTH_AUTH_FAILED            = 5, /* auth failed */
+	BFA_AUTH_INCORRECT_PLD          = 6, /* incorrect payload */
+	BFA_AUTH_INCORRECT_PROTO_MSG    = 7, /* incorrect proto msg */
+	BFA_AUTH_RESTART_AUTH_PROTO     = 8, /* restart auth protocol */
+	BFA_AUTH_AUTH_CONCAT_NOT_SUPP   = 9, /* auth concat not supported */
+	BFA_AUTH_PROTO_VER_NOT_SUPP     = 10,/* proto version not supported */
+};
+
 struct auth_proto_stats_s {
 	u32        auth_rjts;
 	u32        auth_negs;

drivers/scsi/bfa/include/defs/bfa_defs_pport.h

@@ -232,7 +232,7 @@ struct bfa_pport_attr_s {
 	u32        	pid;		/*  port ID */
 	enum bfa_pport_type 	port_type;	/*  current topology */
 	u32        	loopback;	/*  external loopback */
-	u32		rsvd1;
+	u32		authfail;	/* auth fail state */
 	u32		rsvd2;		/*  padding for 64 bit */
 };
 
@@ -247,7 +247,7 @@ struct bfa_pport_fc_stats_s {
 	u64        rx_words;	/*  received words */
 	u64        lip_count;	/*  LIPs seen */
 	u64        nos_count;	/*  NOS count */
-	u64        error_frames;	/*  errored frames (sent?) */
+	u64        error_frames;	/*  errored frames */
 	u64        dropped_frames;	/*  dropped frames */
 	u64        link_failures;	/*  link failure count */
 	u64        loss_of_syncs;	/*  loss of sync count */