2012-03-11 04:14:00 +00:00
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/***********************license start***************
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* Copyright (c) 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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* Functions for ILK initialization, configuration,
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* and monitoring.
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*
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* <hr>$Revision: 41586 $<hr>
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*/
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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#include <linux/module.h>
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#include <asm/octeon/cvmx.h>
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#include <asm/octeon/cvmx-config.h>
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#include <asm/octeon/cvmx-helper.h>
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#include <asm/octeon/cvmx-helper-cfg.h>
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#include <asm/octeon/cvmx-ilk.h>
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#include <asm/octeon/cvmx-bootmem.h>
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#include <asm/octeon/cvmx-pko.h>
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#include <asm/octeon/cvmx-qlm.h>
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#include <asm/octeon/cvmx-ilk-defs.h>
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#else
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2012-03-11 06:17:49 +00:00
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#if !defined(__FreeBSD__) || !defined(_KERNEL)
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2012-03-11 04:14:00 +00:00
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#include "executive-config.h"
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#include "cvmx-config.h"
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2012-03-11 06:17:49 +00:00
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#endif
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2012-03-11 04:14:00 +00:00
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#include "cvmx.h"
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#include "cvmx-helper.h"
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#include "cvmx-helper-cfg.h"
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#include "cvmx-ilk.h"
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#include "cvmx-bootmem.h"
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#include "cvmx-pko.h"
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#include "cvmx-qlm.h"
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#endif
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#ifdef CVMX_ENABLE_PKO_FUNCTIONS
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int __cvmx_helper_ilk_enumerate(int interface)
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{
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interface -= CVMX_ILK_GBL_BASE;
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return cvmx_ilk_chans[interface];
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}
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/**
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* @INTERNAL
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* Probe a ILK interface and determine the number of ports
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* connected to it. The ILK interface should still be down
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* after this call.
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*
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* @param interface Interface to probe
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*
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* @return Number of ports on the interface. Zero to disable.
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*/
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int __cvmx_helper_ilk_probe(int interface)
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{
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int i, j, res = -1;
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static int pipe_base = 0, pknd_base = 0;
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static cvmx_ilk_pipe_chan_t *pch = NULL, *tmp;
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static cvmx_ilk_chan_pknd_t *chpknd = NULL, *tmp1;
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static cvmx_ilk_cal_entry_t *calent = NULL, *tmp2;
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if (!OCTEON_IS_MODEL(OCTEON_CN68XX))
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return 0;
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interface -= CVMX_ILK_GBL_BASE;
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if (interface >= CVMX_NUM_ILK_INTF)
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return 0;
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/* the configuration should be done only once */
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if (cvmx_ilk_get_intf_ena (interface))
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return cvmx_ilk_chans[interface];
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/* configure lanes and enable the link */
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res = cvmx_ilk_start_interface (interface, cvmx_ilk_lane_mask[interface]);
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if (res < 0)
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return 0;
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/* set up the group of pipes available to ilk */
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if (pipe_base == 0)
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pipe_base = __cvmx_pko_get_pipe (interface + CVMX_ILK_GBL_BASE, 0);
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if (pipe_base == -1)
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{
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pipe_base = 0;
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return 0;
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}
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res = cvmx_ilk_set_pipe (interface, pipe_base, cvmx_ilk_chans[interface]);
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if (res < 0)
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return 0;
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/* set up pipe to channel mapping */
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i = pipe_base;
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if (pch == NULL)
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{
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pch = (cvmx_ilk_pipe_chan_t *)
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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kmalloc(CVMX_MAX_ILK_CHANS * sizeof(cvmx_ilk_pipe_chan_t), GFP_KERNEL);
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#else
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cvmx_bootmem_alloc (CVMX_MAX_ILK_CHANS * sizeof(cvmx_ilk_pipe_chan_t),
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sizeof(cvmx_ilk_pipe_chan_t));
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#endif
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if (pch == NULL)
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return 0;
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}
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memset (pch, 0, CVMX_MAX_ILK_CHANS * sizeof(cvmx_ilk_pipe_chan_t));
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tmp = pch;
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for (j = 0; j < cvmx_ilk_chans[interface]; j++)
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{
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tmp->pipe = i++;
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tmp->chan = cvmx_ilk_chan_map[interface][j];
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tmp++;
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}
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res = cvmx_ilk_tx_set_channel (interface, pch, cvmx_ilk_chans[interface]);
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if (res < 0)
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{
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res = 0;
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goto err_free_pch;
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}
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pipe_base += cvmx_ilk_chans[interface];
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/* set up channel to pkind mapping */
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if (pknd_base == 0)
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pknd_base = cvmx_helper_get_pknd (interface + CVMX_ILK_GBL_BASE, 0);
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i = pknd_base;
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if (chpknd == NULL)
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{
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chpknd = (cvmx_ilk_chan_pknd_t *)
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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kmalloc(CVMX_MAX_ILK_PKNDS * sizeof(cvmx_ilk_chan_pknd_t), GFP_KERNEL);
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#else
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cvmx_bootmem_alloc (CVMX_MAX_ILK_PKNDS * sizeof(cvmx_ilk_chan_pknd_t),
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sizeof(cvmx_ilk_chan_pknd_t));
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#endif
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if (chpknd == NULL)
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{
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pipe_base -= cvmx_ilk_chans[interface];
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res = 0;
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goto err_free_pch;
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}
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}
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memset (chpknd, 0, CVMX_MAX_ILK_PKNDS * sizeof(cvmx_ilk_chan_pknd_t));
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tmp1 = chpknd;
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for (j = 0; j < cvmx_ilk_chans[interface]; j++)
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{
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tmp1->chan = cvmx_ilk_chan_map[interface][j];
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tmp1->pknd = i++;
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tmp1++;
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}
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res = cvmx_ilk_rx_set_pknd (interface, chpknd, cvmx_ilk_chans[interface]);
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if (res < 0)
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{
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pipe_base -= cvmx_ilk_chans[interface];
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res = 0;
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goto err_free_chpknd;
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}
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pknd_base += cvmx_ilk_chans[interface];
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/* Set up tx calendar */
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if (calent == NULL)
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{
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calent = (cvmx_ilk_cal_entry_t *)
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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kmalloc(CVMX_MAX_ILK_PIPES * sizeof(cvmx_ilk_cal_entry_t), GFP_KERNEL);
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#else
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cvmx_bootmem_alloc (CVMX_MAX_ILK_PIPES * sizeof(cvmx_ilk_cal_entry_t),
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sizeof(cvmx_ilk_cal_entry_t));
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#endif
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if (calent == NULL)
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{
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pipe_base -= cvmx_ilk_chans[interface];
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pknd_base -= cvmx_ilk_chans[interface];
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res = 0;
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goto err_free_chpknd;
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}
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}
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memset (calent, 0, CVMX_MAX_ILK_PIPES * sizeof(cvmx_ilk_cal_entry_t));
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tmp1 = chpknd;
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tmp2 = calent;
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for (j = 0; j < cvmx_ilk_chans[interface]; j++)
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{
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tmp2->pipe_bpid = tmp1->pknd;
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tmp2->ent_ctrl = PIPE_BPID;
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tmp1++;
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tmp2++;
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}
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res = cvmx_ilk_cal_setup_tx (interface, cvmx_ilk_chans[interface],
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calent, 1);
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if (res < 0)
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{
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pipe_base -= cvmx_ilk_chans[interface];
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pknd_base -= cvmx_ilk_chans[interface];
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res = 0;
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goto err_free_calent;
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}
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/* set up rx calendar. allocated memory can be reused.
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* this is because max pkind is always less than max pipe */
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memset (calent, 0, CVMX_MAX_ILK_PIPES * sizeof(cvmx_ilk_cal_entry_t));
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tmp = pch;
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tmp2 = calent;
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for (j = 0; j < cvmx_ilk_chans[interface]; j++)
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{
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tmp2->pipe_bpid = tmp->pipe;
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tmp2->ent_ctrl = PIPE_BPID;
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tmp++;
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tmp2++;
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}
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res = cvmx_ilk_cal_setup_rx (interface, cvmx_ilk_chans[interface],
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calent, CVMX_ILK_RX_FIFO_WM, 1);
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if (res < 0)
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{
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pipe_base -= cvmx_ilk_chans[interface];
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pknd_base -= cvmx_ilk_chans[interface];
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res = 0;
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goto err_free_calent;
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}
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res = __cvmx_helper_ilk_enumerate(interface + CVMX_ILK_GBL_BASE);
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goto out;
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err_free_calent:
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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kfree (calent);
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#else
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/* no free() for cvmx_bootmem_alloc() */
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#endif
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err_free_chpknd:
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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kfree (chpknd);
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#else
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/* no free() for cvmx_bootmem_alloc() */
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#endif
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err_free_pch:
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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kfree (pch);
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#else
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/* no free() for cvmx_bootmem_alloc() */
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#endif
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out:
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return res;
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}
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/**
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* @INTERNAL
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* Bringup and enable ILK interface. After this call packet
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* I/O should be fully functional. This is called with IPD
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* enabled but PKO disabled.
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*
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* @param interface Interface to bring up
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_ilk_enable(int interface)
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{
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interface -= CVMX_ILK_GBL_BASE;
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return cvmx_ilk_enable(interface);
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}
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/**
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* @INTERNAL
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* Return the link state of an IPD/PKO port as returned by ILK link status.
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*
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* @param ipd_port IPD/PKO port to query
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*
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* @return Link state
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*/
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cvmx_helper_link_info_t __cvmx_helper_ilk_link_get(int ipd_port)
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{
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cvmx_helper_link_info_t result;
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int interface = cvmx_helper_get_interface_num(ipd_port);
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int retry_count = 0;
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cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1;
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cvmx_ilk_rxx_int_t ilk_rxx_int;
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int lanes = 0;
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result.u64 = 0;
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interface -= CVMX_ILK_GBL_BASE;
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retry:
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retry_count++;
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if (retry_count > 10)
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goto out;
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ilk_rxx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG1(interface));
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ilk_rxx_int.u64 = cvmx_read_csr (CVMX_ILK_RXX_INT(interface));
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/* Clear all RX status bits */
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if (ilk_rxx_int.u64)
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cvmx_write_csr(CVMX_ILK_RXX_INT(interface), ilk_rxx_int.u64);
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if (ilk_rxx_cfg1.s.rx_bdry_lock_ena == 0)
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{
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/* We need to start looking for work boundary lock */
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ilk_rxx_cfg1.s.rx_bdry_lock_ena = cvmx_ilk_get_intf_ln_msk(interface);
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ilk_rxx_cfg1.s.rx_align_ena = 0;
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cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
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//cvmx_dprintf("ILK%d: Looking for word boundary lock\n", interface);
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goto retry;
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|
}
|
|
|
|
|
|
|
|
if (ilk_rxx_cfg1.s.rx_align_ena == 0)
|
|
|
|
{
|
|
|
|
if (ilk_rxx_int.s.word_sync_done)
|
|
|
|
{
|
|
|
|
ilk_rxx_cfg1.s.rx_align_ena = 1;
|
|
|
|
cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
|
|
|
|
//printf("ILK%d: Looking for lane alignment\n", interface);
|
|
|
|
goto retry;
|
|
|
|
}
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ilk_rxx_int.s.lane_align_fail)
|
|
|
|
{
|
|
|
|
ilk_rxx_cfg1.s.rx_bdry_lock_ena = 0;
|
|
|
|
ilk_rxx_cfg1.s.rx_align_ena = 0;
|
|
|
|
cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
|
|
|
|
cvmx_dprintf("ILK%d: Lane alignment failed\n", interface);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ilk_rxx_int.s.lane_align_done)
|
|
|
|
{
|
|
|
|
//cvmx_dprintf("ILK%d: Lane alignment complete\n", interface);
|
|
|
|
}
|
|
|
|
|
|
|
|
lanes = cvmx_pop(ilk_rxx_cfg1.s.rx_bdry_lock_ena);
|
|
|
|
|
|
|
|
result.s.link_up = 1;
|
|
|
|
result.s.full_duplex = 1;
|
|
|
|
result.s.speed = cvmx_qlm_get_gbaud_mhz(1+interface) * 64 / 67;
|
|
|
|
result.s.speed *= lanes;
|
|
|
|
|
|
|
|
out:
|
|
|
|
/* If the link is down we will force disable the RX path. If it up, we'll
|
|
|
|
set it to match the TX state set by the if_enable call */
|
|
|
|
if (result.s.link_up)
|
|
|
|
{
|
|
|
|
cvmx_ilk_txx_cfg1_t ilk_txx_cfg1;
|
|
|
|
ilk_txx_cfg1.u64 = cvmx_read_csr(CVMX_ILK_TXX_CFG1(interface));
|
|
|
|
ilk_rxx_cfg1.s.pkt_ena = ilk_txx_cfg1.s.pkt_ena;
|
|
|
|
cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
|
|
|
|
//cvmx_dprintf("ILK%d: link up, %d Mbps, Full duplex mode, %d lanes\n", interface, result.s.speed, lanes);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
ilk_rxx_cfg1.s.pkt_ena = 0;
|
|
|
|
cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
|
|
|
|
//cvmx_dprintf("ILK link down\n");
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @INTERNAL
|
|
|
|
* Set the link state of an IPD/PKO port.
|
|
|
|
*
|
|
|
|
* @param ipd_port IPD/PKO port to configure
|
|
|
|
* @param link_info The new link state
|
|
|
|
*
|
|
|
|
* @return Zero on success, negative on failure
|
|
|
|
*/
|
|
|
|
int __cvmx_helper_ilk_link_set(int ipd_port, cvmx_helper_link_info_t link_info)
|
|
|
|
{
|
|
|
|
/* nothing to do */
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Display ilk interface statistics.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
void __cvmx_helper_ilk_show_stats (void)
|
|
|
|
{
|
|
|
|
int i, j;
|
|
|
|
unsigned char *pchans, num_chans;
|
|
|
|
unsigned int chan_tmp[CVMX_MAX_ILK_CHANS];
|
|
|
|
cvmx_ilk_stats_ctrl_t ilk_stats_ctrl;
|
|
|
|
|
|
|
|
for (i = 0; i < CVMX_NUM_ILK_INTF; i++)
|
|
|
|
{
|
|
|
|
cvmx_ilk_get_chan_info (i, &pchans, &num_chans);
|
|
|
|
|
|
|
|
memset (chan_tmp, 0, CVMX_MAX_ILK_CHANS * sizeof (int));
|
|
|
|
for (j = 0; j < num_chans; j++)
|
|
|
|
chan_tmp[j] = pchans[j];
|
|
|
|
|
|
|
|
ilk_stats_ctrl.chan_list = chan_tmp;
|
|
|
|
ilk_stats_ctrl.num_chans = num_chans;
|
|
|
|
ilk_stats_ctrl.clr_on_rd = 0;
|
|
|
|
cvmx_ilk_show_stats (i, &ilk_stats_ctrl);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* CVMX_ENABLE_PKO_FUNCTIONS */
|