56248d9da8
make use of it where possible. This primarily brings in support for newer hardware, and FreeBSD is not yet able to support the abundance of IRQs on new hardware and many features in the Ethernet driver. Because of the changes to IRQs in the Simple Executive, we have to maintain our own list of Octeon IRQs now, which probably can be pared-down and be specific to the CIU interrupt unit soon, and when other interrupt mechanisms are added they can maintain their own definitions. Remove unmasking of interrupts from within the UART device now that the function used is no longer present in the Simple Executive. The unmasking seems to have been gratuitous as this is more properly handled by the buses above the UART device, and seems to work on that basis.
443 lines
13 KiB
C
443 lines
13 KiB
C
/***********************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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#if !defined(__FreeBSD__) || !defined(_KERNEL)
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#include "executive-config.h"
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#include "cvmx-config.h"
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#endif
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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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}
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if (ilk_rxx_cfg1.s.rx_align_ena == 0)
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{
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if (ilk_rxx_int.s.word_sync_done)
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{
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ilk_rxx_cfg1.s.rx_align_ena = 1;
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cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
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//printf("ILK%d: Looking for lane alignment\n", interface);
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goto retry;
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}
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goto out;
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}
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if (ilk_rxx_int.s.lane_align_fail)
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{
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ilk_rxx_cfg1.s.rx_bdry_lock_ena = 0;
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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: Lane alignment failed\n", interface);
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goto out;
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}
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if (ilk_rxx_int.s.lane_align_done)
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{
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//cvmx_dprintf("ILK%d: Lane alignment complete\n", interface);
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}
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lanes = cvmx_pop(ilk_rxx_cfg1.s.rx_bdry_lock_ena);
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result.s.link_up = 1;
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result.s.full_duplex = 1;
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result.s.speed = cvmx_qlm_get_gbaud_mhz(1+interface) * 64 / 67;
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result.s.speed *= lanes;
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out:
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/* If the link is down we will force disable the RX path. If it up, we'll
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set it to match the TX state set by the if_enable call */
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if (result.s.link_up)
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{
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cvmx_ilk_txx_cfg1_t ilk_txx_cfg1;
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ilk_txx_cfg1.u64 = cvmx_read_csr(CVMX_ILK_TXX_CFG1(interface));
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ilk_rxx_cfg1.s.pkt_ena = ilk_txx_cfg1.s.pkt_ena;
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cvmx_write_csr(CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
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//cvmx_dprintf("ILK%d: link up, %d Mbps, Full duplex mode, %d lanes\n", interface, result.s.speed, lanes);
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}
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else
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{
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ilk_rxx_cfg1.s.pkt_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 link down\n");
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}
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return result;
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}
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/**
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* @INTERNAL
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* Set the link state of an IPD/PKO port.
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*
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* @param ipd_port IPD/PKO port to configure
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* @param link_info The new link state
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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_link_set(int ipd_port, cvmx_helper_link_info_t link_info)
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{
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/* nothing to do */
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return 0;
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}
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/**
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* Display ilk interface statistics.
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*
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*/
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void __cvmx_helper_ilk_show_stats (void)
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{
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int i, j;
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unsigned char *pchans, num_chans;
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unsigned int chan_tmp[CVMX_MAX_ILK_CHANS];
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cvmx_ilk_stats_ctrl_t ilk_stats_ctrl;
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for (i = 0; i < CVMX_NUM_ILK_INTF; i++)
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{
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cvmx_ilk_get_chan_info (i, &pchans, &num_chans);
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memset (chan_tmp, 0, CVMX_MAX_ILK_CHANS * sizeof (int));
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for (j = 0; j < num_chans; j++)
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chan_tmp[j] = pchans[j];
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ilk_stats_ctrl.chan_list = chan_tmp;
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ilk_stats_ctrl.num_chans = num_chans;
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ilk_stats_ctrl.clr_on_rd = 0;
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cvmx_ilk_show_stats (i, &ilk_stats_ctrl);
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}
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}
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#endif /* CVMX_ENABLE_PKO_FUNCTIONS */
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