Merge tag 'kbuild-gnu11-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masah...

[linux-2.6-microblaze.git] / include / linux / if_hsr.h

diff --git a/include/linux/if_hsr.h b/include/linux/if_hsr.h
index 38bbc53..408539d 100644 (file)
--- a/include/linux/if_hsr.h
+++ b/include/linux/if_hsr.h
@@ -9,6 +9,22 @@ enum hsr_version {
        PRP_V1,
 };
 
+/* HSR Tag.
+ * As defined in IEC-62439-3:2010, the HSR tag is really { ethertype = 0x88FB,
+ * path, LSDU_size, sequence Nr }. But we let eth_header() create { h_dest,
+ * h_source, h_proto = 0x88FB }, and add { path, LSDU_size, sequence Nr,
+ * encapsulated protocol } instead.
+ *
+ * Field names as defined in the IEC:2010 standard for HSR.
+ */
+struct hsr_tag {
+       __be16          path_and_LSDU_size;
+       __be16          sequence_nr;
+       __be16          encap_proto;
+} __packed;
+
+#define HSR_HLEN       6
+
 #if IS_ENABLED(CONFIG_HSR)
 extern bool is_hsr_master(struct net_device *dev);
 extern int hsr_get_version(struct net_device *dev, enum hsr_version *ver);