summaryrefslogtreecommitdiffstats
path: root/arch/mips/include/asm/octeon/cvmx-helper.h
blob: 5a3090dc6f2f530f810111c4d9fc206164d98a50 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
/***********************license start***************
 * Author: Cavium Networks
 *
 * Contact: support@caviumnetworks.com
 * 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**************************************/

/*
 *
 * Helper functions for common, but complicated tasks.
 *
 */

#ifndef __CVMX_HELPER_H__
#define __CVMX_HELPER_H__

#include <asm/octeon/cvmx-config.h>
#include <asm/octeon/cvmx-fpa.h>
#include <asm/octeon/cvmx-wqe.h>

typedef enum {
	CVMX_HELPER_INTERFACE_MODE_DISABLED,
	CVMX_HELPER_INTERFACE_MODE_RGMII,
	CVMX_HELPER_INTERFACE_MODE_GMII,
	CVMX_HELPER_INTERFACE_MODE_SPI,
	CVMX_HELPER_INTERFACE_MODE_PCIE,
	CVMX_HELPER_INTERFACE_MODE_XAUI,
	CVMX_HELPER_INTERFACE_MODE_SGMII,
	CVMX_HELPER_INTERFACE_MODE_PICMG,
	CVMX_HELPER_INTERFACE_MODE_NPI,
	CVMX_HELPER_INTERFACE_MODE_LOOP,
} cvmx_helper_interface_mode_t;

typedef union {
	uint64_t u64;
	struct {
		uint64_t reserved_20_63:44;
		uint64_t link_up:1;	    /**< Is the physical link up? */
		uint64_t full_duplex:1;	    /**< 1 if the link is full duplex */
		uint64_t speed:18;	    /**< Speed of the link in Mbps */
	} s;
} cvmx_helper_link_info_t;

#include <asm/octeon/cvmx-helper-errata.h>
#include <asm/octeon/cvmx-helper-loop.h>
#include <asm/octeon/cvmx-helper-npi.h>
#include <asm/octeon/cvmx-helper-rgmii.h>
#include <asm/octeon/cvmx-helper-sgmii.h>
#include <asm/octeon/cvmx-helper-spi.h>
#include <asm/octeon/cvmx-helper-util.h>
#include <asm/octeon/cvmx-helper-xaui.h>

/**
 * cvmx_override_pko_queue_priority(int ipd_port, uint64_t
 * priorities[16]) is a function pointer. It is meant to allow
 * customization of the PKO queue priorities based on the port
 * number. Users should set this pointer to a function before
 * calling any cvmx-helper operations.
 */
extern void (*cvmx_override_pko_queue_priority) (int pko_port,
						 uint64_t priorities[16]);

/**
 * cvmx_override_ipd_port_setup(int ipd_port) is a function
 * pointer. It is meant to allow customization of the IPD port
 * setup before packet input/output comes online. It is called
 * after cvmx-helper does the default IPD configuration, but
 * before IPD is enabled. Users should set this pointer to a
 * function before calling any cvmx-helper operations.
 */
extern void (*cvmx_override_ipd_port_setup) (int ipd_port);

/**
 * This function enables the IPD and also enables the packet interfaces.
 * The packet interfaces (RGMII and SPI) must be enabled after the
 * IPD.	 This should be called by the user program after any additional
 * IPD configuration changes are made if CVMX_HELPER_ENABLE_IPD
 * is not set in the executive-config.h file.
 *
 * Returns 0 on success
 *	   -1 on failure
 */
extern int cvmx_helper_ipd_and_packet_input_enable(void);

/**
 * Initialize the PIP, IPD, and PKO hardware to support
 * simple priority based queues for the ethernet ports. Each
 * port is configured with a number of priority queues based
 * on CVMX_PKO_QUEUES_PER_PORT_* where each queue is lower
 * priority than the previous.
 *
 * Returns Zero on success, non-zero on failure
 */
extern int cvmx_helper_initialize_packet_io_global(void);

/**
 * Does core local initialization for packet io
 *
 * Returns Zero on success, non-zero on failure
 */
extern int cvmx_helper_initialize_packet_io_local(void);

/**
 * Returns the number of ports on the given interface.
 * The interface must be initialized before the port count
 * can be returned.
 *
 * @interface: Which interface to return port count for.
 *
 * Returns Port count for interface
 *	   -1 for uninitialized interface
 */
extern int cvmx_helper_ports_on_interface(int interface);

/**
 * Return the number of interfaces the chip has. Each interface
 * may have multiple ports. Most chips support two interfaces,
 * but the CNX0XX and CNX1XX are exceptions. These only support
 * one interface.
 *
 * Returns Number of interfaces on chip
 */
extern int cvmx_helper_get_number_of_interfaces(void);

/**
 * Get the operating mode of an interface. Depending on the Octeon
 * chip and configuration, this function returns an enumeration
 * of the type of packet I/O supported by an interface.
 *
 * @interface: Interface to probe
 *
 * Returns Mode of the interface. Unknown or unsupported interfaces return
 *	   DISABLED.
 */
extern cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int
								   interface);

/**
 * Auto configure an IPD/PKO port link state and speed. This
 * function basically does the equivalent of:
 * cvmx_helper_link_set(ipd_port, cvmx_helper_link_get(ipd_port));
 *
 * @ipd_port: IPD/PKO port to auto configure
 *
 * Returns Link state after configure
 */
extern cvmx_helper_link_info_t cvmx_helper_link_autoconf(int ipd_port);

/**
 * Return the link state of an IPD/PKO port as returned by
 * auto negotiation. The result of this function may not match
 * Octeon's link config if auto negotiation has changed since
 * the last call to cvmx_helper_link_set().
 *
 * @ipd_port: IPD/PKO port to query
 *
 * Returns Link state
 */
extern cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port);

/**
 * Configure an IPD/PKO port for the specified link state. This
 * function does not influence auto negotiation at the PHY level.
 * The passed link state must always match the link state returned
 * by cvmx_helper_link_get(). It is normally best to use
 * cvmx_helper_link_autoconf() instead.
 *
 * @ipd_port:  IPD/PKO port to configure
 * @link_info: The new link state
 *
 * Returns Zero on success, negative on failure
 */
extern int cvmx_helper_link_set(int ipd_port,
				cvmx_helper_link_info_t link_info);

/**
 * This function probes an interface to determine the actual
 * number of hardware ports connected to it. It doesn't setup the
 * ports or enable them. The main goal here is to set the global
 * interface_port_count[interface] correctly. Hardware setup of the
 * ports will be performed later.
 *
 * @interface: Interface to probe
 *
 * Returns Zero on success, negative on failure
 */
extern int cvmx_helper_interface_probe(int interface);
extern int cvmx_helper_interface_enumerate(int interface);

/**
 * Configure a port for internal and/or external loopback. Internal loopback
 * causes packets sent by the port to be received by Octeon. External loopback
 * causes packets received from the wire to sent out again.
 *
 * @ipd_port: IPD/PKO port to loopback.
 * @enable_internal:
 *		   Non zero if you want internal loopback
 * @enable_external:
 *		   Non zero if you want external loopback
 *
 * Returns Zero on success, negative on failure.
 */
extern int cvmx_helper_configure_loopback(int ipd_port, int enable_internal,
					  int enable_external);

#endif /* __CVMX_HELPER_H__ */