dc4ee6ca91
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.
355 lines
9.9 KiB
C
355 lines
9.9 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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* Small helper utilities.
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*
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* <hr>$Revision: 70030 $<hr>
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*/
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#ifndef __CVMX_HELPER_UTIL_H__
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#define __CVMX_HELPER_UTIL_H__
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#include "cvmx.h"
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#include "cvmx-mio-defs.h"
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#ifdef CVMX_ENABLE_HELPER_FUNCTIONS
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typedef char cvmx_pknd_t;
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typedef char cvmx_bpid_t;
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#define CVMX_INVALID_PKND ((cvmx_pknd_t) -1)
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#define CVMX_INVALID_BPID ((cvmx_bpid_t) -1)
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#define CVMX_MAX_PKND ((cvmx_pknd_t) 64)
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#define CVMX_MAX_BPID ((cvmx_bpid_t) 64)
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#define CVMX_HELPER_MAX_IFACE 9
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/**
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* Convert a interface mode into a human readable string
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*
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* @param mode Mode to convert
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*
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* @return String
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*/
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extern const char *cvmx_helper_interface_mode_to_string(cvmx_helper_interface_mode_t mode);
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/**
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* Debug routine to dump the packet structure to the console
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*
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* @param work Work queue entry containing the packet to dump
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* @return
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*/
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extern int cvmx_helper_dump_packet(cvmx_wqe_t *work);
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/**
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* Setup Random Early Drop on a specific input queue
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*
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* @param queue Input queue to setup RED on (0-7)
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* @param pass_thresh
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* Packets will begin slowly dropping when there are less than
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* this many packet buffers free in FPA 0.
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* @param drop_thresh
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* All incomming packets will be dropped when there are less
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* than this many free packet buffers in FPA 0.
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* @return Zero on success. Negative on failure
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*/
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extern int cvmx_helper_setup_red_queue(int queue, int pass_thresh, int drop_thresh);
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/**
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* Setup Random Early Drop to automatically begin dropping packets.
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*
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* @param pass_thresh
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* Packets will begin slowly dropping when there are less than
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* this many packet buffers free in FPA 0.
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* @param drop_thresh
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* All incomming packets will be dropped when there are less
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* than this many free packet buffers in FPA 0.
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* @return Zero on success. Negative on failure
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*/
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extern int cvmx_helper_setup_red(int pass_thresh, int drop_thresh);
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/**
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* Get the version of the CVMX libraries.
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*
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* @return Version string. Note this buffer is allocated statically
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* and will be shared by all callers.
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*/
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extern const char *cvmx_helper_get_version(void);
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/**
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* @INTERNAL
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* Setup the common GMX settings that determine the number of
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* ports. These setting apply to almost all configurations of all
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* chips.
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*
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* @param interface Interface to configure
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* @param num_ports Number of ports on the interface
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*
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* @return Zero on success, negative on failure
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*/
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extern int __cvmx_helper_setup_gmx(int interface, int num_ports);
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/**
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* @INTERNAL
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* Get the number of ipd_ports on an interface.
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*
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* @param interface
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*
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* @return the number of ipd_ports on the interface and -1 for error.
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*/
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extern int __cvmx_helper_get_num_ipd_ports(int interface);
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/**
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* @INTERNAL
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* Get the number of pko_ports on an interface.
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*
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* @param interface
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*
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* @return the number of pko_ports on the interface.
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*/
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extern int __cvmx_helper_get_num_pko_ports(int interface);
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/*
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* @INTERNAL
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*
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* @param interface
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* @param port
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* @param link_info
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*
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* @return 0 for success and -1 for failure
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*/
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extern int __cvmx_helper_set_link_info(int interface, int port,
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cvmx_helper_link_info_t link_info);
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/**
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* @INTERNAL
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*
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* @param interface
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* @param port
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*
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* @return valid link_info on success or -1 on failure
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*/
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extern cvmx_helper_link_info_t __cvmx_helper_get_link_info(int interface,
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int port);
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enum cvmx_pko_padding {
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CVMX_PKO_PADDING_NONE = 0,
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CVMX_PKO_PADDING_60 = 1,
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};
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/**
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* @INTERNAL
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*
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* @param interface
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* @param num_ipd_ports is the number of ipd_ports on the interface
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* @param has_fcs indicates if PKO does FCS for the ports on this
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* @param pad The padding that PKO should apply.
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* interface.
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*
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* @return 0 for success and -1 for failure
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*/
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extern int __cvmx_helper_init_interface(int interface, int num_ipd_ports, int has_fcs, enum cvmx_pko_padding pad);
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/**
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* @INTERNAL
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*
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* @param interface
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*
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* @return 0 if PKO does not do FCS and 1 otherwise.
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*/
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extern int __cvmx_helper_get_has_fcs(int interface);
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extern enum cvmx_pko_padding __cvmx_helper_get_pko_padding(int interface);
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/**
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* Returns the IPD port number for a port on the given
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* interface.
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*
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* @param interface Interface to use
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* @param port Port on the interface
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*
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* @return IPD port number
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*/
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extern int cvmx_helper_get_ipd_port(int interface, int port);
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/**
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* Returns the PKO port number for a port on the given interface,
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* This is the base pko_port for o68 and ipd_port for older models.
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*
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* @param interface Interface to use
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* @param port Port on the interface
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*
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* @return PKO port number and -1 on error.
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*/
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extern int cvmx_helper_get_pko_port(int interface, int port);
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/**
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* Returns the IPD/PKO port number for the first port on the given
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* interface.
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*
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* @param interface Interface to use
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*
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* @return IPD/PKO port number
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*/
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static inline int cvmx_helper_get_first_ipd_port(int interface)
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{
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return (cvmx_helper_get_ipd_port (interface, 0));
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}
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/**
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* Returns the IPD/PKO port number for the last port on the given
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* interface.
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*
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* @param interface Interface to use
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*
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* @return IPD/PKO port number
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*/
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static inline int cvmx_helper_get_last_ipd_port (int interface)
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{
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return (cvmx_helper_get_first_ipd_port (interface) +
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cvmx_helper_ports_on_interface (interface) - 1);
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}
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/**
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* Free the packet buffers contained in a work queue entry.
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* The work queue entry is not freed.
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*
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* @param work Work queue entry with packet to free
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*/
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static inline void cvmx_helper_free_packet_data(cvmx_wqe_t *work)
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{
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uint64_t number_buffers;
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cvmx_buf_ptr_t buffer_ptr;
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cvmx_buf_ptr_t next_buffer_ptr;
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uint64_t start_of_buffer;
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number_buffers = work->word2.s.bufs;
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if (number_buffers == 0)
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return;
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buffer_ptr = work->packet_ptr;
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/* Since the number of buffers is not zero, we know this is not a dynamic
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short packet. We need to check if it is a packet received with
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IPD_CTL_STATUS[NO_WPTR]. If this is true, we need to free all buffers
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except for the first one. The caller doesn't expect their WQE pointer
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to be freed */
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start_of_buffer = ((buffer_ptr.s.addr >> 7) - buffer_ptr.s.back) << 7;
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if (cvmx_ptr_to_phys(work) == start_of_buffer)
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{
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next_buffer_ptr = *(cvmx_buf_ptr_t*)cvmx_phys_to_ptr(buffer_ptr.s.addr - 8);
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buffer_ptr = next_buffer_ptr;
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number_buffers--;
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}
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while (number_buffers--)
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{
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/* Remember the back pointer is in cache lines, not 64bit words */
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start_of_buffer = ((buffer_ptr.s.addr >> 7) - buffer_ptr.s.back) << 7;
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/* Read pointer to next buffer before we free the current buffer. */
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next_buffer_ptr = *(cvmx_buf_ptr_t*)cvmx_phys_to_ptr(buffer_ptr.s.addr - 8);
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cvmx_fpa_free(cvmx_phys_to_ptr(start_of_buffer), buffer_ptr.s.pool, 0);
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buffer_ptr = next_buffer_ptr;
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}
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}
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#endif /* CVMX_ENABLE_HELPER_FUNCTIONS */
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/**
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* Returns the interface number for an IPD/PKO port number.
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*
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* @param ipd_port IPD/PKO port number
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*
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* @return Interface number
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*/
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extern int cvmx_helper_get_interface_num(int ipd_port);
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/**
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* Returns the interface index number for an IPD/PKO port
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* number.
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*
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* @param ipd_port IPD/PKO port number
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*
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* @return Interface index number
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*/
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extern int cvmx_helper_get_interface_index_num(int ipd_port);
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/**
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* Get port kind for a given port in an interface.
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*
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* @param interface Interface
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* @param port index of the port in the interface
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*
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* @return port kind on sucicess and -1 on failure
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*/
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extern int cvmx_helper_get_pknd(int interface, int port);
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/**
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* Get bpid for a given port in an interface.
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*
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* @param interface Interface
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* @param port index of the port in the interface
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*
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* @return port kind on sucicess and -1 on failure
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*/
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extern int cvmx_helper_get_bpid(int interface, int port);
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/**
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* Internal functions.
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*/
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extern int __cvmx_helper_post_init_interfaces(void);
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extern void __cvmx_helper_shutdown_interfaces(void);
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extern void cvmx_helper_show_stats(int port);
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#endif /* __CVMX_HELPER_H__ */
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