forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
3.1 KiB
101 lines
3.1 KiB
/***********************license start*************** |
|
* Author: Cavium Networks |
|
* |
|
* Contact: [email protected] |
|
* This file is part of the OCTEON SDK |
|
* |
|
* Copyright (c) 2003-2008 Cavium Networks |
|
* |
|
* This file is free software; you can redistribute it and/or modify |
|
* it under the terms of the GNU General Public License, Version 2, as |
|
* published by the Free Software Foundation. |
|
* |
|
* This file is distributed in the hope that it will be useful, but |
|
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty |
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or |
|
* NONINFRINGEMENT. See the GNU General Public License for more |
|
* details. |
|
* |
|
* You should have received a copy of the GNU General Public License |
|
* along with this file; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|
* or visit http://www.gnu.org/licenses/. |
|
* |
|
* This file may also be available under a different license from Cavium. |
|
* Contact Cavium Networks for more information |
|
***********************license end**************************************/ |
|
|
|
/* |
|
* Functions for NPI initialization, configuration, |
|
* and monitoring. |
|
*/ |
|
#include <asm/octeon/octeon.h> |
|
|
|
#include <asm/octeon/cvmx-config.h> |
|
|
|
#include <asm/octeon/cvmx-helper.h> |
|
|
|
#include <asm/octeon/cvmx-pip-defs.h> |
|
|
|
/** |
|
* Probe a NPI interface and determine the number of ports |
|
* connected to it. The NPI interface should still be down |
|
* after this call. |
|
* |
|
* @interface: Interface to probe |
|
* |
|
* Returns 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_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX)) |
|
return 4; |
|
else if (OCTEON_IS_MODEL(OCTEON_CN56XX) |
|
&& !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)) |
|
/* The packet engines didn't exist before pass 2 */ |
|
return 4; |
|
else if (OCTEON_IS_MODEL(OCTEON_CN52XX) |
|
&& !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X)) |
|
/* The packet engines didn't exist before pass 2 */ |
|
return 4; |
|
#endif |
|
return 0; |
|
} |
|
|
|
/** |
|
* 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. |
|
* |
|
* @interface: Interface to bring up |
|
* |
|
* Returns Zero on success, negative on failure |
|
*/ |
|
int __cvmx_helper_npi_enable(int 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 num_ports = cvmx_helper_ports_on_interface(interface); |
|
int port; |
|
for (port = 0; port < num_ports; port++) { |
|
union cvmx_pip_prt_cfgx port_cfg; |
|
int ipd_port = |
|
cvmx_helper_get_ipd_port(interface, port); |
|
port_cfg.u64 = |
|
cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port)); |
|
port_cfg.s.maxerr_en = 0; |
|
port_cfg.s.minerr_en = 0; |
|
cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), |
|
port_cfg.u64); |
|
} |
|
} |
|
|
|
/* Enables are controlled by the remote host, so nothing to do here */ |
|
return 0; |
|
}
|
|
|