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Diffstat (limited to 'sys/contrib/octeon-sdk/cvmx-helper-npi.c')
| -rw-r--r-- | sys/contrib/octeon-sdk/cvmx-helper-npi.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/sys/contrib/octeon-sdk/cvmx-helper-npi.c b/sys/contrib/octeon-sdk/cvmx-helper-npi.c new file mode 100644 index 0000000..6f64c3e --- /dev/null +++ b/sys/contrib/octeon-sdk/cvmx-helper-npi.c @@ -0,0 +1,179 @@ +/***********************license start*************** + * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights + * reserved. + * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + + * * Neither the name of Cavium Inc. nor the names of + * its contributors may be used to endorse or promote products + * derived from this software without specific prior written + * permission. + + * This Software, including technical data, may be subject to U.S. export control + * laws, including the U.S. Export Administration Act and its associated + * regulations, and may be subject to export or import regulations in other + * countries. + + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" + * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR + * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO + * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR + * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM + * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, + * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF + * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR + * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR + * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. + ***********************license end**************************************/ + + + + + + + +/** + * @file + * + * Functions for NPI initialization, configuration, + * and monitoring. + * + * <hr>$Revision: 70030 $<hr> + */ +#ifdef CVMX_BUILD_FOR_LINUX_KERNEL +#include <asm/octeon/cvmx.h> +#include <asm/octeon/cvmx-config.h> +#ifdef CVMX_ENABLE_PKO_FUNCTIONS +#include <asm/octeon/cvmx-helper.h> +#include <asm/octeon/cvmx-pko.h> +#include <asm/octeon/cvmx-pexp-defs.h> +#include <asm/octeon/cvmx-sli-defs.h> +#endif +#include <asm/octeon/cvmx-pip-defs.h> +#else +#if !defined(__FreeBSD__) || !defined(_KERNEL) +#include "executive-config.h" +#include "cvmx-config.h" +#include "cvmx.h" +#include "cvmx-pko.h" +#ifdef CVMX_ENABLE_PKO_FUNCTIONS +#include "cvmx-helper.h" +#endif +#else +#include "cvmx.h" +#include "cvmx-pko.h" +#include "cvmx-helper.h" +#endif +#endif + +#ifdef CVMX_ENABLE_PKO_FUNCTIONS + +/** + * @INTERNAL + * Probe a NPI interface and determine the number of ports + * connected to it. The NPI interface should still be down + * after this call. + * + * @param interface Interface to probe + * + * @return Number of ports on the interface. Zero to disable. + */ +int __cvmx_helper_npi_probe(int interface) +{ +#if CVMX_PKO_QUEUES_PER_PORT_PCI > 0 + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + return 32; +#if 0 + /* Technically CN30XX, CN31XX, and CN50XX contain packet engines, but + nobody ever uses them. Since this is the case, we disable them here */ + else if (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN50XX)) + return 2; + else if (OCTEON_IS_MODEL(OCTEON_CN30XX)) + return 1; +#endif + else if (!(OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X) || OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X) || OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN50XX) || OCTEON_IS_MODEL(OCTEON_CN30XX))) + return 4; /* The packet engines didn't exist before cn56xx pass 2 */ +#endif + return 0; +} + + +/** + * @INTERNAL + * Bringup and enable a NPI interface. After this call packet + * I/O should be fully functional. This is called with IPD + * enabled but PKO disabled. + * + * @param interface Interface to bring up + * + * @return Zero on success, negative on failure + */ +int __cvmx_helper_npi_enable(int interface) +{ + int num_ports = cvmx_helper_ports_on_interface(interface); + + /* On CN50XX, CN52XX, and CN56XX we need to disable length checking + so packet < 64 bytes and jumbo frames don't get errors */ + if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && !OCTEON_IS_MODEL(OCTEON_CN58XX)) + { + int port; + for (port=0; port<num_ports; port++) + { + cvmx_pip_prt_cfgx_t port_cfg; + int ipd_port = (OCTEON_IS_MODEL(OCTEON_CN68XX)) ? + cvmx_helper_get_pknd(interface, port) : + cvmx_helper_get_ipd_port(interface, port); + port_cfg.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port)); + port_cfg.s.lenerr_en = 0; + port_cfg.s.maxerr_en = 0; + port_cfg.s.minerr_en = 0; + cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_cfg.u64); + + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + { + /* + * Set up pknd and bpid + */ + cvmx_sli_portx_pkind_t config; + config.u64 = cvmx_read_csr(CVMX_PEXP_SLI_PORTX_PKIND(port)); + config.s.bpkind = cvmx_helper_get_bpid(interface, port); + config.s.pkind = cvmx_helper_get_pknd(interface, port); + cvmx_write_csr(CVMX_PEXP_SLI_PORTX_PKIND(port), config.u64); + } + } + } + + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + { + /* + * Set up pko pipes. + */ + cvmx_sli_tx_pipe_t config; + config.u64 = cvmx_read_csr(CVMX_PEXP_SLI_TX_PIPE); + config.s.base = __cvmx_pko_get_pipe (interface, 0); +#ifdef CVMX_HELPER_NPI_MAX_PIPES + config.s.nump = CVMX_HELPER_NPI_MAX_PIPES; +#else + config.s.nump = num_ports; +#endif + cvmx_write_csr(CVMX_PEXP_SLI_TX_PIPE, config.u64); + } + + + /* Enables are controlled by the remote host, so nothing to do here */ + return 0; +} + +#endif /* CVMX_ENABLE_PKO_FUNCTIONS */ + |
