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+/***********************license start***************
+ * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
+ * reserved.
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+
+ * * Neither the name of Cavium Inc. nor the names of
+ * its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written
+ * permission.
+
+ * This Software, including technical data, may be subject to U.S. export control
+ * laws, including the U.S. Export Administration Act and its associated
+ * regulations, and may be subject to export or import regulations in other
+ * countries.
+
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
+ * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
+ * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
+ * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
+ * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
+ * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
+ * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
+ ***********************license end**************************************/
+
+
+
+
+
+
+
+/**
+ * @file
+ *
+ * Interface to the GMX hardware.
+ *
+ * <hr>$Revision: 70030 $<hr>
+ */
+
+#ifndef __CVMX_GMX_H__
+#define __CVMX_GMX_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* CSR typedefs have been moved to cvmx-gmx-defs.h */
+
+/**
+ * Disables the sending of flow control (pause) frames on the specified
+ * RGMII port(s).
+ *
+ * @param interface Which interface (0 or 1)
+ * @param port_mask Mask (4bits) of which ports on the interface to disable
+ * backpressure on.
+ * 1 => disable backpressure
+ * 0 => enable backpressure
+ *
+ * @return 0 on success
+ * -1 on error
+ */
+
+static inline int cvmx_gmx_set_backpressure_override(uint32_t interface, uint32_t port_mask)
+{
+ cvmx_gmxx_tx_ovr_bp_t gmxx_tx_ovr_bp;
+ /* Check for valid arguments */
+ if (port_mask & ~0xf || interface & ~0x1)
+ return(-1);
+ gmxx_tx_ovr_bp.u64 = 0;
+ gmxx_tx_ovr_bp.s.en = port_mask; /* Per port Enable back pressure override */
+ gmxx_tx_ovr_bp.s.ign_full = port_mask; /* Ignore the RX FIFO full when computing BP */
+ cvmx_write_csr(CVMX_GMXX_TX_OVR_BP(interface), gmxx_tx_ovr_bp.u64);
+ return(0);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
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