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authorChris Leech <christopher.leech@intel.com>2009-11-03 11:47:18 -0800
committerJames Bottomley <James.Bottomley@suse.de>2009-12-04 12:01:04 -0600
commitdc8596d303bb306da9ab5326fa6209710de86b8b (patch)
treec9f747013ecf23b966e057daf0b7cb87e6495f99 /drivers/scsi/fcoe
parentc914f7d16df6420cfd4c09399957425ba9c21f47 (diff)
[SCSI] fcoe: vport symbolic name support
Allow a vport specific string to be appended to the port symbolic name. The new symbolic name is sent to the name server after it is set. This currently messes with libhbalinux, which is looking for the fcoe "fcoe <ver> over <ethX>" string and expects whatever comes after the "over" to be a network interface name only. Adds an EXPORT_SYMBOL to libfc for fc_frame_alloc_fill, which is needed to allow fcoe to allocate a frame of variable length for the RSPN request. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/fcoe')
-rw-r--r--drivers/scsi/fcoe/fcoe.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 437eacf2732..f1c126b798a 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -96,6 +96,7 @@ static struct scsi_transport_template *fcoe_vport_transport_template;
static int fcoe_vport_destroy(struct fc_vport *vport);
static int fcoe_vport_create(struct fc_vport *vport, bool disabled);
static int fcoe_vport_disable(struct fc_vport *vport, bool disable);
+static void fcoe_set_vport_symbolic_name(struct fc_vport *vport);
struct fc_function_template fcoe_transport_function = {
.show_host_node_name = 1,
@@ -132,6 +133,7 @@ struct fc_function_template fcoe_transport_function = {
.vport_create = fcoe_vport_create,
.vport_delete = fcoe_vport_destroy,
.vport_disable = fcoe_vport_disable,
+ .set_vport_symbolic_name = fcoe_set_vport_symbolic_name,
};
struct fc_function_template fcoe_vport_transport_function = {
@@ -2326,3 +2328,34 @@ static int fcoe_vport_disable(struct fc_vport *vport, bool disable)
return 0;
}
+/**
+ * fcoe_vport_set_symbolic_name() - append vport string to symbolic name
+ * @vport: fc_vport with a new symbolic name string
+ *
+ * After generating a new symbolic name string, a new RSPN_ID request is
+ * sent to the name server. There is no response handler, so if it fails
+ * for some reason it will not be retried.
+ */
+static void fcoe_set_vport_symbolic_name(struct fc_vport *vport)
+{
+ struct fc_lport *lport = vport->dd_data;
+ struct fc_frame *fp;
+ size_t len;
+
+ snprintf(fc_host_symbolic_name(lport->host), FC_SYMBOLIC_NAME_SIZE,
+ "%s v%s over %s : %s", FCOE_NAME, FCOE_VERSION,
+ fcoe_netdev(lport)->name, vport->symbolic_name);
+
+ if (lport->state != LPORT_ST_READY)
+ return;
+
+ len = strnlen(fc_host_symbolic_name(lport->host), 255);
+ fp = fc_frame_alloc(lport,
+ sizeof(struct fc_ct_hdr) +
+ sizeof(struct fc_ns_rspn) + len);
+ if (!fp)
+ return;
+ lport->tt.elsct_send(lport, FC_FID_DIR_SERV, fp, FC_NS_RSPN_ID,
+ NULL, NULL, lport->e_d_tov);
+}
+