[SCSI] libfc: Extending lport's roles for target if there is a registered target.
Problem:
From initaitor machine, when queried role of target (other end of connection),
it is "initiator", hence SCSI-ml doesn't send any LUN Inquiry commands.
Fix:
If there is a registered target for FC_TYPE_FCP, extend lport's params
(capability) to be target as well, By default lport params are
INITIATOR only. Having this fix, caused initiator to send SCSI LUN
inquiry command to target.
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/libfc/fc_libfc.c b/drivers/scsi/libfc/fc_libfc.c
index 5e40dab..b773512 100644
--- a/drivers/scsi/libfc/fc_libfc.c
+++ b/drivers/scsi/libfc/fc_libfc.c
@@ -232,6 +232,25 @@
}
EXPORT_SYMBOL(fc_fill_reply_hdr);
+/**
+ * fc_fc4_conf_lport_params() - Modify "service_params" of specified lport
+ * if there is service provider (target provider) registered with libfc
+ * for specified "fc_ft_type"
+ * @lport: Local port which service_params needs to be modified
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ */
+void fc_fc4_conf_lport_params(struct fc_lport *lport, enum fc_fh_type type)
+{
+ struct fc4_prov *prov_entry;
+ BUG_ON(type >= FC_FC4_PROV_SIZE);
+ BUG_ON(!lport);
+ prov_entry = fc_passive_prov[type];
+ if (type == FC_TYPE_FCP) {
+ if (prov_entry && prov_entry->recv)
+ lport->service_params |= FCP_SPPF_TARG_FCN;
+ }
+}
+
void fc_lport_iterate(void (*notify)(struct fc_lport *, void *), void *arg)
{
struct fc_lport *lport;
diff --git a/drivers/scsi/libfc/fc_libfc.h b/drivers/scsi/libfc/fc_libfc.h
index 8496f70..fedc819 100644
--- a/drivers/scsi/libfc/fc_libfc.h
+++ b/drivers/scsi/libfc/fc_libfc.h
@@ -125,6 +125,7 @@
const char *fc_els_resp_type(struct fc_frame *);
extern void fc_fc4_add_lport(struct fc_lport *);
extern void fc_fc4_del_lport(struct fc_lport *);
+extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type);
/*
* Copies a buffer into an sg list
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index e0ef814..735f1f8 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1597,6 +1597,7 @@
fc_lport_add_fc4_type(lport, FC_TYPE_FCP);
fc_lport_add_fc4_type(lport, FC_TYPE_CT);
+ fc_fc4_conf_lport_params(lport, FC_TYPE_FCP);
return 0;
}