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