Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / octeon / ethernet-util.h

diff --git a/kernel/drivers/staging/octeon/ethernet-util.h b/kernel/drivers/staging/octeon/ethernet-util.h
new file mode 100644 (file)
index 0000000..0f9b4a1
--- /dev/null
+++ b/kernel/drivers/staging/octeon/ethernet-util.h
@@ -0,0 +1,70 @@
+/**********************************************************************
+ * Author: Cavium Networks
+ *
+ * Contact: support@caviumnetworks.com
+ * This file is part of the OCTEON SDK
+ *
+ * Copyright (c) 2003-2007 Cavium Networks
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this file; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * or visit http://www.gnu.org/licenses/.
+ *
+ * This file may also be available under a different license from Cavium.
+ * Contact Cavium Networks for more information
+*********************************************************************/
+
+/**
+ * cvm_oct_get_buffer_ptr - convert packet data address to pointer
+ * @packet_ptr: Packet data hardware address
+ *
+ * Returns Packet buffer pointer
+ */
+static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr)
+{
+       return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back)
+                               << 7);
+}
+
+/**
+ * INTERFACE - convert IPD port to logical interface
+ * @ipd_port: Port to check
+ *
+ * Returns Logical interface
+ */
+static inline int INTERFACE(int ipd_port)
+{
+       if (ipd_port < 32)      /* Interface 0 or 1 for RGMII,GMII,SPI, etc */
+               return ipd_port >> 4;
+       else if (ipd_port < 36) /* Interface 2 for NPI */
+               return 2;
+       else if (ipd_port < 40) /* Interface 3 for loopback */
+               return 3;
+       else if (ipd_port == 40)        /* Non existent interface for POW0 */
+               return 4;
+       panic("Illegal ipd_port %d passed to INTERFACE\n", ipd_port);
+}
+
+/**
+ * INDEX - convert IPD/PKO port number to the port's interface index
+ * @ipd_port: Port to check
+ *
+ * Returns Index into interface port list
+ */
+static inline int INDEX(int ipd_port)
+{
+       if (ipd_port < 32)
+               return ipd_port & 15;
+       return ipd_port & 3;
+}