[SCSI] fcoe: Move common functions to fcoe_transport library

Export fcoe_get_wwn, fcoe_validate_vport_create and fcoe_wwn_to_str so that all
LLDs can use these common function.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index ba710e3..c30fa27 100644 (file)
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -138,7 +138,6 @@ static int fcoe_vport_create(struct fc_vport *, bool disabled);
 static int fcoe_vport_disable(struct fc_vport *, bool disable);
 static void fcoe_set_vport_symbolic_name(struct fc_vport *);
 static void fcoe_set_port_id(struct fc_lport *, u32, struct fc_frame *);
-static int fcoe_validate_vport_create(struct fc_vport *);
 
 static struct libfc_function_template fcoe_libfc_fcn_templ = {
        .frame_send = fcoe_xmit,
@@ -577,23 +576,6 @@ static int fcoe_lport_config(struct fc_lport *lport)
 }
 
 /**
- * fcoe_get_wwn() - Get the world wide name from LLD if it supports it
- * @netdev: the associated net device
- * @wwn: the output WWN
- * @type: the type of WWN (WWPN or WWNN)
- *
- * Returns: 0 for success
- */
-static int fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type)
-{
-       const struct net_device_ops *ops = netdev->netdev_ops;
-
-       if (ops->ndo_fcoe_get_wwn)
-               return ops->ndo_fcoe_get_wwn(netdev, wwn, type);
-       return -EINVAL;
-}
-
-/**
  * fcoe_netdev_features_change - Updates the lport's offload flags based
  * on the LLD netdev's FCoE feature flags
  */
@@ -2444,7 +2426,7 @@ static int fcoe_vport_create(struct fc_vport *vport, bool disabled)
 
        rc = fcoe_validate_vport_create(vport);
        if (rc) {
-               wwn_to_str(vport->port_name, buf, sizeof(buf));
+               fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
                printk(KERN_ERR "fcoe: Failed to create vport, "
                        "WWPN (0x%s) already exists\n",
                        buf);
@@ -2596,49 +2578,3 @@ static void fcoe_set_port_id(struct fc_lport *lport,
        if (fp && fc_frame_payload_op(fp) == ELS_FLOGI)
                fcoe_ctlr_recv_flogi(&fcoe->ctlr, lport, fp);
 }
-
-/**
- * fcoe_validate_vport_create() - Validate a vport before creating it
- * @vport: NPIV port to be created
- *
- * This routine is meant to add validation for a vport before creating it
- * via fcoe_vport_create().
- * Current validations are:
- *      - WWPN supplied is unique for given lport
- *
- *
-*/
-static int fcoe_validate_vport_create(struct fc_vport *vport)
-{
-       struct Scsi_Host *shost = vport_to_shost(vport);
-       struct fc_lport *n_port = shost_priv(shost);
-       struct fc_lport *vn_port;
-       int rc = 0;
-       char buf[32];
-
-       mutex_lock(&n_port->lp_mutex);
-
-       wwn_to_str(vport->port_name, buf, sizeof(buf));
-       /* Check if the wwpn is not same as that of the lport */
-       if (!memcmp(&n_port->wwpn, &vport->port_name, sizeof(u64))) {
-               FCOE_DBG("vport WWPN 0x%s is same as that of the "
-                       "base port WWPN\n", buf);
-               rc = -EINVAL;
-               goto out;
-       }
-
-       /* Check if there is any existing vport with same wwpn */
-       list_for_each_entry(vn_port, &n_port->vports, list) {
-               if (!memcmp(&vn_port->wwpn, &vport->port_name, sizeof(u64))) {
-                       FCOE_DBG("vport with given WWPN 0x%s already "
-                       "exists\n", buf);
-                       rc = -EINVAL;
-                       break;
-               }
-       }
-
-out:
-       mutex_unlock(&n_port->lp_mutex);
-
-       return rc;
-}

diff --git a/drivers/scsi/fcoe/fcoe.h b/drivers/scsi/fcoe/fcoe.h
index c4a9399..408a6fd 100644 (file)
--- a/drivers/scsi/fcoe/fcoe.h
+++ b/drivers/scsi/fcoe/fcoe.h
@@ -99,14 +99,4 @@ static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
                        ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
 }
 
-static inline void wwn_to_str(u64 wwn, char *buf, int len)
-{
-       u8 wwpn[8];
-
-       u64_to_wwn(wwn, wwpn);
-       snprintf(buf, len, "%02x%02x%02x%02x%02x%02x%02x%02x",
-               wwpn[0], wwpn[1], wwpn[2], wwpn[3],
-               wwpn[4], wwpn[5], wwpn[6], wwpn[7]);
-}
-
 #endif /* _FCOE_H_ */

diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c
index 41068e8..50c8c4a 100644 (file)
--- a/drivers/scsi/fcoe/fcoe_transport.c
+++ b/drivers/scsi/fcoe/fcoe_transport.c
@@ -83,6 +83,78 @@ static struct notifier_block libfcoe_notifier = {
        .notifier_call = libfcoe_device_notification,
 };
 
+void fcoe_wwn_to_str(u64 wwn, char *buf, int len)
+{
+       u8 wwpn[8];
+
+       u64_to_wwn(wwn, wwpn);
+       snprintf(buf, len, "%02x%02x%02x%02x%02x%02x%02x%02x",
+                wwpn[0], wwpn[1], wwpn[2], wwpn[3],
+                wwpn[4], wwpn[5], wwpn[6], wwpn[7]);
+}
+EXPORT_SYMBOL_GPL(fcoe_wwn_to_str);
+
+/**
+ * fcoe_validate_vport_create() - Validate a vport before creating it
+ * @vport: NPIV port to be created
+ *
+ * This routine is meant to add validation for a vport before creating it
+ * via fcoe_vport_create().
+ * Current validations are:
+ *      - WWPN supplied is unique for given lport
+ */
+int fcoe_validate_vport_create(struct fc_vport *vport)
+{
+       struct Scsi_Host *shost = vport_to_shost(vport);
+       struct fc_lport *n_port = shost_priv(shost);
+       struct fc_lport *vn_port;
+       int rc = 0;
+       char buf[32];
+
+       mutex_lock(&n_port->lp_mutex);
+
+       fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+       /* Check if the wwpn is not same as that of the lport */
+       if (!memcmp(&n_port->wwpn, &vport->port_name, sizeof(u64))) {
+               LIBFCOE_TRANSPORT_DBG("vport WWPN 0x%s is same as that of the "
+                                     "base port WWPN\n", buf);
+               rc = -EINVAL;
+               goto out;
+       }
+
+       /* Check if there is any existing vport with same wwpn */
+       list_for_each_entry(vn_port, &n_port->vports, list) {
+               if (!memcmp(&vn_port->wwpn, &vport->port_name, sizeof(u64))) {
+                       LIBFCOE_TRANSPORT_DBG("vport with given WWPN 0x%s "
+                                             "already exists\n", buf);
+                       rc = -EINVAL;
+                       break;
+               }
+       }
+out:
+       mutex_unlock(&n_port->lp_mutex);
+       return rc;
+}
+EXPORT_SYMBOL_GPL(fcoe_validate_vport_create);
+
+/**
+ * fcoe_get_wwn() - Get the world wide name from LLD if it supports it
+ * @netdev: the associated net device
+ * @wwn: the output WWN
+ * @type: the type of WWN (WWPN or WWNN)
+ *
+ * Returns: 0 for success
+ */
+int fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type)
+{
+       const struct net_device_ops *ops = netdev->netdev_ops;
+
+       if (ops->ndo_fcoe_get_wwn)
+               return ops->ndo_fcoe_get_wwn(netdev, wwn, type);
+       return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(fcoe_get_wwn);
+
 /**
  * fcoe_fc_crc() - Calculates the CRC for a given frame
  * @fp: The frame to be checksumed

diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 8c1638b..0b2f843 100644 (file)
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -229,6 +229,9 @@ int fcoe_libfc_config(struct fc_lport *, struct fcoe_ctlr *,
                      const struct libfc_function_template *, int init_fcp);
 u32 fcoe_fc_crc(struct fc_frame *fp);
 int fcoe_start_io(struct sk_buff *skb);
+int fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
+void fcoe_wwn_to_str(u64 wwn, char *buf, int len);
+int fcoe_validate_vport_create(struct fc_vport *vport);
 
 /**
  * is_fip_mode() - returns true if FIP mode selected.