Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / infiniband / hw / usnic / usnic_common_util.h

diff --git a/kernel/drivers/infiniband/hw/usnic/usnic_common_util.h b/kernel/drivers/infiniband/hw/usnic/usnic_common_util.h
new file mode 100644 (file)
index 0000000..9d737ed
--- /dev/null
+++ b/kernel/drivers/infiniband/hw/usnic/usnic_common_util.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef USNIC_CMN_UTIL_H
+#define USNIC_CMN_UTIL_H
+
+static inline void
+usnic_mac_to_gid(const char *const mac, char *raw_gid)
+{
+       raw_gid[0] = 0xfe;
+       raw_gid[1] = 0x80;
+       memset(&raw_gid[2], 0, 6);
+       raw_gid[8] = mac[0]^2;
+       raw_gid[9] = mac[1];
+       raw_gid[10] = mac[2];
+       raw_gid[11] = 0xff;
+       raw_gid[12] = 0xfe;
+       raw_gid[13] = mac[3];
+       raw_gid[14] = mac[4];
+       raw_gid[15] = mac[5];
+}
+
+static inline void
+usnic_mac_ip_to_gid(const char *const mac, const __be32 inaddr, char *raw_gid)
+{
+       raw_gid[0] = 0xfe;
+       raw_gid[1] = 0x80;
+       memset(&raw_gid[2], 0, 2);
+       memcpy(&raw_gid[4], &inaddr, 4);
+       raw_gid[8] = mac[0]^2;
+       raw_gid[9] = mac[1];
+       raw_gid[10] = mac[2];
+       raw_gid[11] = 0xff;
+       raw_gid[12] = 0xfe;
+       raw_gid[13] = mac[3];
+       raw_gid[14] = mac[4];
+       raw_gid[15] = mac[5];
+}
+
+static inline void
+usnic_write_gid_if_id_from_mac(char *mac, char *raw_gid)
+{
+       raw_gid[8] = mac[0]^2;
+       raw_gid[9] = mac[1];
+       raw_gid[10] = mac[2];
+       raw_gid[11] = 0xff;
+       raw_gid[12] = 0xfe;
+       raw_gid[13] = mac[3];
+       raw_gid[14] = mac[4];
+       raw_gid[15] = mac[5];
+}
+
+#endif /* USNIC_COMMON_UTIL_H */