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1 | /***********************license start*************** |
2 | * Author: Cavium Networks | |
3 | * | |
4 | * Contact: support@caviumnetworks.com | |
5 | * This file is part of the OCTEON SDK | |
6 | * | |
7 | * Copyright (c) 2003-2008 Cavium Networks | |
8 | * | |
9 | * This file is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License, Version 2, as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This file is distributed in the hope that it will be useful, but | |
14 | * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty | |
15 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or | |
16 | * NONINFRINGEMENT. See the GNU General Public License for more | |
17 | * details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this file; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | * or visit http://www.gnu.org/licenses/. | |
23 | * | |
24 | * This file may also be available under a different license from Cavium. | |
25 | * Contact Cavium Networks for more information | |
26 | ***********************license end**************************************/ | |
27 | ||
28 | /* | |
29 | * | |
30 | * Helper functions for common, but complicated tasks. | |
31 | * | |
32 | */ | |
33 | #include <asm/octeon/octeon.h> | |
34 | ||
35 | #include "cvmx-config.h" | |
36 | ||
37 | #include "cvmx-fpa.h" | |
38 | #include "cvmx-pip.h" | |
39 | #include "cvmx-pko.h" | |
40 | #include "cvmx-ipd.h" | |
41 | #include "cvmx-spi.h" | |
42 | #include "cvmx-helper.h" | |
43 | #include "cvmx-helper-board.h" | |
44 | ||
45 | #include "cvmx-pip-defs.h" | |
46 | #include "cvmx-smix-defs.h" | |
47 | #include "cvmx-asxx-defs.h" | |
48 | ||
49 | /** | |
50 | * cvmx_override_pko_queue_priority(int ipd_port, uint64_t | |
51 | * priorities[16]) is a function pointer. It is meant to allow | |
52 | * customization of the PKO queue priorities based on the port | |
53 | * number. Users should set this pointer to a function before | |
54 | * calling any cvmx-helper operations. | |
55 | */ | |
56 | void (*cvmx_override_pko_queue_priority) (int pko_port, | |
57 | uint64_t priorities[16]); | |
58 | ||
59 | /** | |
60 | * cvmx_override_ipd_port_setup(int ipd_port) is a function | |
61 | * pointer. It is meant to allow customization of the IPD port | |
62 | * setup before packet input/output comes online. It is called | |
63 | * after cvmx-helper does the default IPD configuration, but | |
64 | * before IPD is enabled. Users should set this pointer to a | |
65 | * function before calling any cvmx-helper operations. | |
66 | */ | |
67 | void (*cvmx_override_ipd_port_setup) (int ipd_port); | |
68 | ||
69 | /* Port count per interface */ | |
70 | static int interface_port_count[4] = { 0, 0, 0, 0 }; | |
71 | ||
72 | /* Port last configured link info index by IPD/PKO port */ | |
73 | static cvmx_helper_link_info_t | |
74 | port_link_info[CVMX_PIP_NUM_INPUT_PORTS]; | |
75 | ||
76 | /** | |
77 | * Return the number of interfaces the chip has. Each interface | |
78 | * may have multiple ports. Most chips support two interfaces, | |
79 | * but the CNX0XX and CNX1XX are exceptions. These only support | |
80 | * one interface. | |
81 | * | |
82 | * Returns Number of interfaces on chip | |
83 | */ | |
84 | int cvmx_helper_get_number_of_interfaces(void) | |
85 | { | |
86 | if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) | |
87 | return 4; | |
88 | else | |
89 | return 3; | |
90 | } | |
91 | ||
92 | /** | |
93 | * Return the number of ports on an interface. Depending on the | |
94 | * chip and configuration, this can be 1-16. A value of 0 | |
95 | * specifies that the interface doesn't exist or isn't usable. | |
96 | * | |
97 | * @interface: Interface to get the port count for | |
98 | * | |
99 | * Returns Number of ports on interface. Can be Zero. | |
100 | */ | |
101 | int cvmx_helper_ports_on_interface(int interface) | |
102 | { | |
103 | return interface_port_count[interface]; | |
104 | } | |
105 | ||
106 | /** | |
107 | * Get the operating mode of an interface. Depending on the Octeon | |
108 | * chip and configuration, this function returns an enumeration | |
109 | * of the type of packet I/O supported by an interface. | |
110 | * | |
111 | * @interface: Interface to probe | |
112 | * | |
113 | * Returns Mode of the interface. Unknown or unsupported interfaces return | |
114 | * DISABLED. | |
115 | */ | |
116 | cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int interface) | |
117 | { | |
118 | union cvmx_gmxx_inf_mode mode; | |
119 | if (interface == 2) | |
120 | return CVMX_HELPER_INTERFACE_MODE_NPI; | |
121 | ||
122 | if (interface == 3) { | |
123 | if (OCTEON_IS_MODEL(OCTEON_CN56XX) | |
124 | || OCTEON_IS_MODEL(OCTEON_CN52XX)) | |
125 | return CVMX_HELPER_INTERFACE_MODE_LOOP; | |
126 | else | |
127 | return CVMX_HELPER_INTERFACE_MODE_DISABLED; | |
128 | } | |
129 | ||
130 | if (interface == 0 | |
131 | && cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_CN3005_EVB_HS5 | |
132 | && cvmx_sysinfo_get()->board_rev_major == 1) { | |
133 | /* | |
134 | * Lie about interface type of CN3005 board. This | |
135 | * board has a switch on port 1 like the other | |
136 | * evaluation boards, but it is connected over RGMII | |
137 | * instead of GMII. Report GMII mode so that the | |
138 | * speed is forced to 1 Gbit full duplex. Other than | |
139 | * some initial configuration (which does not use the | |
140 | * output of this function) there is no difference in | |
141 | * setup between GMII and RGMII modes. | |
142 | */ | |
143 | return CVMX_HELPER_INTERFACE_MODE_GMII; | |
144 | } | |
145 | ||
146 | /* Interface 1 is always disabled on CN31XX and CN30XX */ | |
147 | if ((interface == 1) | |
148 | && (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN30XX) | |
149 | || OCTEON_IS_MODEL(OCTEON_CN50XX) | |
150 | || OCTEON_IS_MODEL(OCTEON_CN52XX))) | |
151 | return CVMX_HELPER_INTERFACE_MODE_DISABLED; | |
152 | ||
153 | mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface)); | |
154 | ||
155 | if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) { | |
156 | switch (mode.cn56xx.mode) { | |
157 | case 0: | |
158 | return CVMX_HELPER_INTERFACE_MODE_DISABLED; | |
159 | case 1: | |
160 | return CVMX_HELPER_INTERFACE_MODE_XAUI; | |
161 | case 2: | |
162 | return CVMX_HELPER_INTERFACE_MODE_SGMII; | |
163 | case 3: | |
164 | return CVMX_HELPER_INTERFACE_MODE_PICMG; | |
165 | default: | |
166 | return CVMX_HELPER_INTERFACE_MODE_DISABLED; | |
167 | } | |
168 | } else { | |
169 | if (!mode.s.en) | |
170 | return CVMX_HELPER_INTERFACE_MODE_DISABLED; | |
171 | ||
172 | if (mode.s.type) { | |
173 | if (OCTEON_IS_MODEL(OCTEON_CN38XX) | |
174 | || OCTEON_IS_MODEL(OCTEON_CN58XX)) | |
175 | return CVMX_HELPER_INTERFACE_MODE_SPI; | |
176 | else | |
177 | return CVMX_HELPER_INTERFACE_MODE_GMII; | |
178 | } else | |
179 | return CVMX_HELPER_INTERFACE_MODE_RGMII; | |
180 | } | |
181 | } | |
182 | ||
183 | /** | |
184 | * Configure the IPD/PIP tagging and QoS options for a specific | |
185 | * port. This function determines the POW work queue entry | |
186 | * contents for a port. The setup performed here is controlled by | |
187 | * the defines in executive-config.h. | |
188 | * | |
189 | * @ipd_port: Port to configure. This follows the IPD numbering, not the | |
190 | * per interface numbering | |
191 | * | |
192 | * Returns Zero on success, negative on failure | |
193 | */ | |
194 | static int __cvmx_helper_port_setup_ipd(int ipd_port) | |
195 | { | |
196 | union cvmx_pip_prt_cfgx port_config; | |
197 | union cvmx_pip_prt_tagx tag_config; | |
198 | ||
199 | port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port)); | |
200 | tag_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_TAGX(ipd_port)); | |
201 | ||
202 | /* Have each port go to a different POW queue */ | |
203 | port_config.s.qos = ipd_port & 0x7; | |
204 | ||
205 | /* Process the headers and place the IP header in the work queue */ | |
206 | port_config.s.mode = CVMX_HELPER_INPUT_PORT_SKIP_MODE; | |
207 | ||
208 | tag_config.s.ip6_src_flag = CVMX_HELPER_INPUT_TAG_IPV6_SRC_IP; | |
209 | tag_config.s.ip6_dst_flag = CVMX_HELPER_INPUT_TAG_IPV6_DST_IP; | |
210 | tag_config.s.ip6_sprt_flag = CVMX_HELPER_INPUT_TAG_IPV6_SRC_PORT; | |
211 | tag_config.s.ip6_dprt_flag = CVMX_HELPER_INPUT_TAG_IPV6_DST_PORT; | |
212 | tag_config.s.ip6_nxth_flag = CVMX_HELPER_INPUT_TAG_IPV6_NEXT_HEADER; | |
213 | tag_config.s.ip4_src_flag = CVMX_HELPER_INPUT_TAG_IPV4_SRC_IP; | |
214 | tag_config.s.ip4_dst_flag = CVMX_HELPER_INPUT_TAG_IPV4_DST_IP; | |
215 | tag_config.s.ip4_sprt_flag = CVMX_HELPER_INPUT_TAG_IPV4_SRC_PORT; | |
216 | tag_config.s.ip4_dprt_flag = CVMX_HELPER_INPUT_TAG_IPV4_DST_PORT; | |
217 | tag_config.s.ip4_pctl_flag = CVMX_HELPER_INPUT_TAG_IPV4_PROTOCOL; | |
218 | tag_config.s.inc_prt_flag = CVMX_HELPER_INPUT_TAG_INPUT_PORT; | |
219 | tag_config.s.tcp6_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; | |
220 | tag_config.s.tcp4_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; | |
221 | tag_config.s.ip6_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; | |
222 | tag_config.s.ip4_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; | |
223 | tag_config.s.non_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; | |
224 | /* Put all packets in group 0. Other groups can be used by the app */ | |
225 | tag_config.s.grp = 0; | |
226 | ||
227 | cvmx_pip_config_port(ipd_port, port_config, tag_config); | |
228 | ||
229 | /* Give the user a chance to override our setting for each port */ | |
230 | if (cvmx_override_ipd_port_setup) | |
231 | cvmx_override_ipd_port_setup(ipd_port); | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | /** | |
237 | * This function probes an interface to determine the actual | |
238 | * number of hardware ports connected to it. It doesn't setup the | |
239 | * ports or enable them. The main goal here is to set the global | |
240 | * interface_port_count[interface] correctly. Hardware setup of the | |
241 | * ports will be performed later. | |
242 | * | |
243 | * @interface: Interface to probe | |
244 | * | |
245 | * Returns Zero on success, negative on failure | |
246 | */ | |
247 | int cvmx_helper_interface_probe(int interface) | |
248 | { | |
249 | /* At this stage in the game we don't want packets to be moving yet. | |
250 | The following probe calls should perform hardware setup | |
251 | needed to determine port counts. Receive must still be disabled */ | |
252 | switch (cvmx_helper_interface_get_mode(interface)) { | |
253 | /* These types don't support ports to IPD/PKO */ | |
254 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: | |
255 | case CVMX_HELPER_INTERFACE_MODE_PCIE: | |
256 | interface_port_count[interface] = 0; | |
257 | break; | |
258 | /* XAUI is a single high speed port */ | |
259 | case CVMX_HELPER_INTERFACE_MODE_XAUI: | |
260 | interface_port_count[interface] = | |
261 | __cvmx_helper_xaui_probe(interface); | |
262 | break; | |
263 | /* | |
264 | * RGMII/GMII/MII are all treated about the same. Most | |
265 | * functions refer to these ports as RGMII. | |
266 | */ | |
267 | case CVMX_HELPER_INTERFACE_MODE_RGMII: | |
268 | case CVMX_HELPER_INTERFACE_MODE_GMII: | |
269 | interface_port_count[interface] = | |
270 | __cvmx_helper_rgmii_probe(interface); | |
271 | break; | |
272 | /* | |
273 | * SPI4 can have 1-16 ports depending on the device at | |
274 | * the other end. | |
275 | */ | |
276 | case CVMX_HELPER_INTERFACE_MODE_SPI: | |
277 | interface_port_count[interface] = | |
278 | __cvmx_helper_spi_probe(interface); | |
279 | break; | |
280 | /* | |
281 | * SGMII can have 1-4 ports depending on how many are | |
282 | * hooked up. | |
283 | */ | |
284 | case CVMX_HELPER_INTERFACE_MODE_SGMII: | |
285 | case CVMX_HELPER_INTERFACE_MODE_PICMG: | |
286 | interface_port_count[interface] = | |
287 | __cvmx_helper_sgmii_probe(interface); | |
288 | break; | |
289 | /* PCI target Network Packet Interface */ | |
290 | case CVMX_HELPER_INTERFACE_MODE_NPI: | |
291 | interface_port_count[interface] = | |
292 | __cvmx_helper_npi_probe(interface); | |
293 | break; | |
294 | /* | |
295 | * Special loopback only ports. These are not the same | |
296 | * as other ports in loopback mode. | |
297 | */ | |
298 | case CVMX_HELPER_INTERFACE_MODE_LOOP: | |
299 | interface_port_count[interface] = | |
300 | __cvmx_helper_loop_probe(interface); | |
301 | break; | |
302 | } | |
303 | ||
304 | interface_port_count[interface] = | |
305 | __cvmx_helper_board_interface_probe(interface, | |
306 | interface_port_count | |
307 | [interface]); | |
308 | ||
309 | /* Make sure all global variables propagate to other cores */ | |
310 | CVMX_SYNCWS; | |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
315 | /** | |
316 | * Setup the IPD/PIP for the ports on an interface. Packet | |
317 | * classification and tagging are set for every port on the | |
318 | * interface. The number of ports on the interface must already | |
319 | * have been probed. | |
320 | * | |
321 | * @interface: Interface to setup IPD/PIP for | |
322 | * | |
323 | * Returns Zero on success, negative on failure | |
324 | */ | |
325 | static int __cvmx_helper_interface_setup_ipd(int interface) | |
326 | { | |
327 | int ipd_port = cvmx_helper_get_ipd_port(interface, 0); | |
328 | int num_ports = interface_port_count[interface]; | |
329 | ||
330 | while (num_ports--) { | |
331 | __cvmx_helper_port_setup_ipd(ipd_port); | |
332 | ipd_port++; | |
333 | } | |
334 | return 0; | |
335 | } | |
336 | ||
337 | /** | |
338 | * Setup global setting for IPD/PIP not related to a specific | |
339 | * interface or port. This must be called before IPD is enabled. | |
340 | * | |
341 | * Returns Zero on success, negative on failure. | |
342 | */ | |
343 | static int __cvmx_helper_global_setup_ipd(void) | |
344 | { | |
345 | /* Setup the global packet input options */ | |
346 | cvmx_ipd_config(CVMX_FPA_PACKET_POOL_SIZE / 8, | |
347 | CVMX_HELPER_FIRST_MBUFF_SKIP / 8, | |
348 | CVMX_HELPER_NOT_FIRST_MBUFF_SKIP / 8, | |
349 | /* The +8 is to account for the next ptr */ | |
350 | (CVMX_HELPER_FIRST_MBUFF_SKIP + 8) / 128, | |
351 | /* The +8 is to account for the next ptr */ | |
352 | (CVMX_HELPER_NOT_FIRST_MBUFF_SKIP + 8) / 128, | |
353 | CVMX_FPA_WQE_POOL, | |
354 | CVMX_IPD_OPC_MODE_STT, | |
355 | CVMX_HELPER_ENABLE_BACK_PRESSURE); | |
356 | return 0; | |
357 | } | |
358 | ||
359 | /** | |
360 | * Setup the PKO for the ports on an interface. The number of | |
361 | * queues per port and the priority of each PKO output queue | |
362 | * is set here. PKO must be disabled when this function is called. | |
363 | * | |
364 | * @interface: Interface to setup PKO for | |
365 | * | |
366 | * Returns Zero on success, negative on failure | |
367 | */ | |
368 | static int __cvmx_helper_interface_setup_pko(int interface) | |
369 | { | |
370 | /* | |
371 | * Each packet output queue has an associated priority. The | |
372 | * higher the priority, the more often it can send a packet. A | |
373 | * priority of 8 means it can send in all 8 rounds of | |
374 | * contention. We're going to make each queue one less than | |
375 | * the last. The vector of priorities has been extended to | |
376 | * support CN5xxx CPUs, where up to 16 queues can be | |
377 | * associated to a port. To keep backward compatibility we | |
378 | * don't change the initial 8 priorities and replicate them in | |
379 | * the second half. With per-core PKO queues (PKO lockless | |
380 | * operation) all queues have the same priority. | |
381 | */ | |
382 | uint64_t priorities[16] = | |
383 | { 8, 7, 6, 5, 4, 3, 2, 1, 8, 7, 6, 5, 4, 3, 2, 1 }; | |
384 | ||
385 | /* | |
386 | * Setup the IPD/PIP and PKO for the ports discovered | |
387 | * above. Here packet classification, tagging and output | |
388 | * priorities are set. | |
389 | */ | |
390 | int ipd_port = cvmx_helper_get_ipd_port(interface, 0); | |
391 | int num_ports = interface_port_count[interface]; | |
392 | while (num_ports--) { | |
393 | /* | |
394 | * Give the user a chance to override the per queue | |
395 | * priorities. | |
396 | */ | |
397 | if (cvmx_override_pko_queue_priority) | |
398 | cvmx_override_pko_queue_priority(ipd_port, priorities); | |
399 | ||
400 | cvmx_pko_config_port(ipd_port, | |
401 | cvmx_pko_get_base_queue_per_core(ipd_port, | |
402 | 0), | |
403 | cvmx_pko_get_num_queues(ipd_port), | |
404 | priorities); | |
405 | ipd_port++; | |
406 | } | |
407 | return 0; | |
408 | } | |
409 | ||
410 | /** | |
411 | * Setup global setting for PKO not related to a specific | |
412 | * interface or port. This must be called before PKO is enabled. | |
413 | * | |
414 | * Returns Zero on success, negative on failure. | |
415 | */ | |
416 | static int __cvmx_helper_global_setup_pko(void) | |
417 | { | |
418 | /* | |
419 | * Disable tagwait FAU timeout. This needs to be done before | |
420 | * anyone might start packet output using tags. | |
421 | */ | |
422 | union cvmx_iob_fau_timeout fau_to; | |
423 | fau_to.u64 = 0; | |
424 | fau_to.s.tout_val = 0xfff; | |
425 | fau_to.s.tout_enb = 0; | |
426 | cvmx_write_csr(CVMX_IOB_FAU_TIMEOUT, fau_to.u64); | |
427 | return 0; | |
428 | } | |
429 | ||
430 | /** | |
431 | * Setup global backpressure setting. | |
432 | * | |
433 | * Returns Zero on success, negative on failure | |
434 | */ | |
435 | static int __cvmx_helper_global_setup_backpressure(void) | |
436 | { | |
437 | #if CVMX_HELPER_DISABLE_RGMII_BACKPRESSURE | |
438 | /* Disable backpressure if configured to do so */ | |
439 | /* Disable backpressure (pause frame) generation */ | |
440 | int num_interfaces = cvmx_helper_get_number_of_interfaces(); | |
441 | int interface; | |
442 | for (interface = 0; interface < num_interfaces; interface++) { | |
443 | switch (cvmx_helper_interface_get_mode(interface)) { | |
444 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: | |
445 | case CVMX_HELPER_INTERFACE_MODE_PCIE: | |
446 | case CVMX_HELPER_INTERFACE_MODE_NPI: | |
447 | case CVMX_HELPER_INTERFACE_MODE_LOOP: | |
448 | case CVMX_HELPER_INTERFACE_MODE_XAUI: | |
449 | break; | |
450 | case CVMX_HELPER_INTERFACE_MODE_RGMII: | |
451 | case CVMX_HELPER_INTERFACE_MODE_GMII: | |
452 | case CVMX_HELPER_INTERFACE_MODE_SPI: | |
453 | case CVMX_HELPER_INTERFACE_MODE_SGMII: | |
454 | case CVMX_HELPER_INTERFACE_MODE_PICMG: | |
455 | cvmx_gmx_set_backpressure_override(interface, 0xf); | |
456 | break; | |
457 | } | |
458 | } | |
459 | #endif | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | /** | |
465 | * Enable packet input/output from the hardware. This function is | |
466 | * called after all internal setup is complete and IPD is enabled. | |
467 | * After this function completes, packets will be accepted from the | |
468 | * hardware ports. PKO should still be disabled to make sure packets | |
469 | * aren't sent out partially setup hardware. | |
470 | * | |
471 | * @interface: Interface to enable | |
472 | * | |
473 | * Returns Zero on success, negative on failure | |
474 | */ | |
475 | static int __cvmx_helper_packet_hardware_enable(int interface) | |
476 | { | |
477 | int result = 0; | |
478 | switch (cvmx_helper_interface_get_mode(interface)) { | |
479 | /* These types don't support ports to IPD/PKO */ | |
480 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: | |
481 | case CVMX_HELPER_INTERFACE_MODE_PCIE: | |
482 | /* Nothing to do */ | |
483 | break; | |
484 | /* XAUI is a single high speed port */ | |
485 | case CVMX_HELPER_INTERFACE_MODE_XAUI: | |
486 | result = __cvmx_helper_xaui_enable(interface); | |
487 | break; | |
488 | /* | |
489 | * RGMII/GMII/MII are all treated about the same. Most | |
490 | * functions refer to these ports as RGMII | |
491 | */ | |
492 | case CVMX_HELPER_INTERFACE_MODE_RGMII: | |
493 | case CVMX_HELPER_INTERFACE_MODE_GMII: | |
494 | result = __cvmx_helper_rgmii_enable(interface); | |
495 | break; | |
496 | /* | |
497 | * SPI4 can have 1-16 ports depending on the device at | |
498 | * the other end | |
499 | */ | |
500 | case CVMX_HELPER_INTERFACE_MODE_SPI: | |
501 | result = __cvmx_helper_spi_enable(interface); | |
502 | break; | |
503 | /* | |
504 | * SGMII can have 1-4 ports depending on how many are | |
505 | * hooked up | |
506 | */ | |
507 | case CVMX_HELPER_INTERFACE_MODE_SGMII: | |
508 | case CVMX_HELPER_INTERFACE_MODE_PICMG: | |
509 | result = __cvmx_helper_sgmii_enable(interface); | |
510 | break; | |
511 | /* PCI target Network Packet Interface */ | |
512 | case CVMX_HELPER_INTERFACE_MODE_NPI: | |
513 | result = __cvmx_helper_npi_enable(interface); | |
514 | break; | |
515 | /* | |
516 | * Special loopback only ports. These are not the same | |
517 | * as other ports in loopback mode | |
518 | */ | |
519 | case CVMX_HELPER_INTERFACE_MODE_LOOP: | |
520 | result = __cvmx_helper_loop_enable(interface); | |
521 | break; | |
522 | } | |
523 | result |= __cvmx_helper_board_hardware_enable(interface); | |
524 | return result; | |
525 | } | |
526 | ||
527 | /** | |
528 | * Function to adjust internal IPD pointer alignments | |
529 | * | |
530 | * Returns 0 on success | |
531 | * !0 on failure | |
532 | */ | |
533 | int __cvmx_helper_errata_fix_ipd_ptr_alignment(void) | |
534 | { | |
535 | #define FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES \ | |
536 | (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_FIRST_MBUFF_SKIP) | |
537 | #define FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES \ | |
538 | (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_NOT_FIRST_MBUFF_SKIP) | |
539 | #define FIX_IPD_OUTPORT 0 | |
540 | /* Ports 0-15 are interface 0, 16-31 are interface 1 */ | |
541 | #define INTERFACE(port) (port >> 4) | |
542 | #define INDEX(port) (port & 0xf) | |
543 | uint64_t *p64; | |
544 | cvmx_pko_command_word0_t pko_command; | |
545 | union cvmx_buf_ptr g_buffer, pkt_buffer; | |
546 | cvmx_wqe_t *work; | |
547 | int size, num_segs = 0, wqe_pcnt, pkt_pcnt; | |
548 | union cvmx_gmxx_prtx_cfg gmx_cfg; | |
549 | int retry_cnt; | |
550 | int retry_loop_cnt; | |
551 | int mtu; | |
552 | int i; | |
553 | cvmx_helper_link_info_t link_info; | |
554 | ||
555 | /* Save values for restore at end */ | |
556 | uint64_t prtx_cfg = | |
557 | cvmx_read_csr(CVMX_GMXX_PRTX_CFG | |
558 | (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); | |
559 | uint64_t tx_ptr_en = | |
560 | cvmx_read_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); | |
561 | uint64_t rx_ptr_en = | |
562 | cvmx_read_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); | |
563 | uint64_t rxx_jabber = | |
564 | cvmx_read_csr(CVMX_GMXX_RXX_JABBER | |
565 | (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); | |
566 | uint64_t frame_max = | |
567 | cvmx_read_csr(CVMX_GMXX_RXX_FRM_MAX | |
568 | (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); | |
569 | ||
570 | /* Configure port to gig FDX as required for loopback mode */ | |
571 | cvmx_helper_rgmii_internal_loopback(FIX_IPD_OUTPORT); | |
572 | ||
573 | /* | |
574 | * Disable reception on all ports so if traffic is present it | |
575 | * will not interfere. | |
576 | */ | |
577 | cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), 0); | |
578 | ||
579 | cvmx_wait(100000000ull); | |
580 | ||
581 | for (retry_loop_cnt = 0; retry_loop_cnt < 10; retry_loop_cnt++) { | |
582 | retry_cnt = 100000; | |
583 | wqe_pcnt = cvmx_read_csr(CVMX_IPD_PTR_COUNT); | |
584 | pkt_pcnt = (wqe_pcnt >> 7) & 0x7f; | |
585 | wqe_pcnt &= 0x7f; | |
586 | ||
587 | num_segs = (2 + pkt_pcnt - wqe_pcnt) & 3; | |
588 | ||
589 | if (num_segs == 0) | |
590 | goto fix_ipd_exit; | |
591 | ||
592 | num_segs += 1; | |
593 | ||
594 | size = | |
595 | FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES + | |
596 | ((num_segs - 1) * FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES) - | |
597 | (FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES / 2); | |
598 | ||
599 | cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), | |
600 | 1 << INDEX(FIX_IPD_OUTPORT)); | |
601 | CVMX_SYNC; | |
602 | ||
603 | g_buffer.u64 = 0; | |
604 | g_buffer.s.addr = | |
605 | cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_WQE_POOL)); | |
606 | if (g_buffer.s.addr == 0) { | |
607 | cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " | |
608 | "buffer allocation failure.\n"); | |
609 | goto fix_ipd_exit; | |
610 | } | |
611 | ||
612 | g_buffer.s.pool = CVMX_FPA_WQE_POOL; | |
613 | g_buffer.s.size = num_segs; | |
614 | ||
615 | pkt_buffer.u64 = 0; | |
616 | pkt_buffer.s.addr = | |
617 | cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_PACKET_POOL)); | |
618 | if (pkt_buffer.s.addr == 0) { | |
619 | cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " | |
620 | "buffer allocation failure.\n"); | |
621 | goto fix_ipd_exit; | |
622 | } | |
623 | pkt_buffer.s.i = 1; | |
624 | pkt_buffer.s.pool = CVMX_FPA_PACKET_POOL; | |
625 | pkt_buffer.s.size = FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES; | |
626 | ||
627 | p64 = (uint64_t *) cvmx_phys_to_ptr(pkt_buffer.s.addr); | |
628 | p64[0] = 0xffffffffffff0000ull; | |
629 | p64[1] = 0x08004510ull; | |
630 | p64[2] = ((uint64_t) (size - 14) << 48) | 0x5ae740004000ull; | |
631 | p64[3] = 0x3a5fc0a81073c0a8ull; | |
632 | ||
633 | for (i = 0; i < num_segs; i++) { | |
634 | if (i > 0) | |
635 | pkt_buffer.s.size = | |
636 | FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES; | |
637 | ||
638 | if (i == (num_segs - 1)) | |
639 | pkt_buffer.s.i = 0; | |
640 | ||
641 | *(uint64_t *) cvmx_phys_to_ptr(g_buffer.s.addr + | |
642 | 8 * i) = pkt_buffer.u64; | |
643 | } | |
644 | ||
645 | /* Build the PKO command */ | |
646 | pko_command.u64 = 0; | |
647 | pko_command.s.segs = num_segs; | |
648 | pko_command.s.total_bytes = size; | |
649 | pko_command.s.dontfree = 0; | |
650 | pko_command.s.gather = 1; | |
651 | ||
652 | gmx_cfg.u64 = | |
653 | cvmx_read_csr(CVMX_GMXX_PRTX_CFG | |
654 | (INDEX(FIX_IPD_OUTPORT), | |
655 | INTERFACE(FIX_IPD_OUTPORT))); | |
656 | gmx_cfg.s.en = 1; | |
657 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG | |
658 | (INDEX(FIX_IPD_OUTPORT), | |
659 | INTERFACE(FIX_IPD_OUTPORT)), gmx_cfg.u64); | |
660 | cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), | |
661 | 1 << INDEX(FIX_IPD_OUTPORT)); | |
662 | cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), | |
663 | 1 << INDEX(FIX_IPD_OUTPORT)); | |
664 | ||
665 | mtu = | |
666 | cvmx_read_csr(CVMX_GMXX_RXX_JABBER | |
667 | (INDEX(FIX_IPD_OUTPORT), | |
668 | INTERFACE(FIX_IPD_OUTPORT))); | |
669 | cvmx_write_csr(CVMX_GMXX_RXX_JABBER | |
670 | (INDEX(FIX_IPD_OUTPORT), | |
671 | INTERFACE(FIX_IPD_OUTPORT)), 65392 - 14 - 4); | |
672 | cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX | |
673 | (INDEX(FIX_IPD_OUTPORT), | |
674 | INTERFACE(FIX_IPD_OUTPORT)), 65392 - 14 - 4); | |
675 | ||
676 | cvmx_pko_send_packet_prepare(FIX_IPD_OUTPORT, | |
677 | cvmx_pko_get_base_queue | |
678 | (FIX_IPD_OUTPORT), | |
679 | CVMX_PKO_LOCK_CMD_QUEUE); | |
680 | cvmx_pko_send_packet_finish(FIX_IPD_OUTPORT, | |
681 | cvmx_pko_get_base_queue | |
682 | (FIX_IPD_OUTPORT), pko_command, | |
683 | g_buffer, CVMX_PKO_LOCK_CMD_QUEUE); | |
684 | ||
685 | CVMX_SYNC; | |
686 | ||
687 | do { | |
688 | work = cvmx_pow_work_request_sync(CVMX_POW_WAIT); | |
689 | retry_cnt--; | |
690 | } while ((work == NULL) && (retry_cnt > 0)); | |
691 | ||
692 | if (!retry_cnt) | |
693 | cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " | |
25985edc | 694 | "get_work() timeout occurred.\n"); |
80ff0fd3 DD |
695 | |
696 | /* Free packet */ | |
697 | if (work) | |
698 | cvmx_helper_free_packet_data(work); | |
699 | } | |
700 | ||
701 | fix_ipd_exit: | |
702 | ||
703 | /* Return CSR configs to saved values */ | |
704 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG | |
705 | (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), | |
706 | prtx_cfg); | |
707 | cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), | |
708 | tx_ptr_en); | |
709 | cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), | |
710 | rx_ptr_en); | |
711 | cvmx_write_csr(CVMX_GMXX_RXX_JABBER | |
712 | (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), | |
713 | rxx_jabber); | |
714 | cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX | |
715 | (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), | |
716 | frame_max); | |
717 | cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), 0); | |
718 | /* Set link to down so autonegotiation will set it up again */ | |
719 | link_info.u64 = 0; | |
720 | cvmx_helper_link_set(FIX_IPD_OUTPORT, link_info); | |
721 | ||
722 | /* | |
723 | * Bring the link back up as autonegotiation is not done in | |
724 | * user applications. | |
725 | */ | |
726 | cvmx_helper_link_autoconf(FIX_IPD_OUTPORT); | |
727 | ||
728 | CVMX_SYNC; | |
729 | if (num_segs) | |
730 | cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT failed.\n"); | |
731 | ||
732 | return !!num_segs; | |
733 | ||
734 | } | |
735 | ||
736 | /** | |
737 | * Called after all internal packet IO paths are setup. This | |
738 | * function enables IPD/PIP and begins packet input and output. | |
739 | * | |
740 | * Returns Zero on success, negative on failure | |
741 | */ | |
742 | int cvmx_helper_ipd_and_packet_input_enable(void) | |
743 | { | |
744 | int num_interfaces; | |
745 | int interface; | |
746 | ||
747 | /* Enable IPD */ | |
748 | cvmx_ipd_enable(); | |
749 | ||
750 | /* | |
751 | * Time to enable hardware ports packet input and output. Note | |
752 | * that at this point IPD/PIP must be fully functional and PKO | |
753 | * must be disabled | |
754 | */ | |
755 | num_interfaces = cvmx_helper_get_number_of_interfaces(); | |
756 | for (interface = 0; interface < num_interfaces; interface++) { | |
757 | if (cvmx_helper_ports_on_interface(interface) > 0) | |
758 | __cvmx_helper_packet_hardware_enable(interface); | |
759 | } | |
760 | ||
761 | /* Finally enable PKO now that the entire path is up and running */ | |
762 | cvmx_pko_enable(); | |
763 | ||
764 | if ((OCTEON_IS_MODEL(OCTEON_CN31XX_PASS1) | |
765 | || OCTEON_IS_MODEL(OCTEON_CN30XX_PASS1)) | |
766 | && (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM)) | |
767 | __cvmx_helper_errata_fix_ipd_ptr_alignment(); | |
768 | return 0; | |
769 | } | |
770 | ||
771 | /** | |
772 | * Initialize the PIP, IPD, and PKO hardware to support | |
773 | * simple priority based queues for the ethernet ports. Each | |
774 | * port is configured with a number of priority queues based | |
775 | * on CVMX_PKO_QUEUES_PER_PORT_* where each queue is lower | |
776 | * priority than the previous. | |
777 | * | |
778 | * Returns Zero on success, non-zero on failure | |
779 | */ | |
780 | int cvmx_helper_initialize_packet_io_global(void) | |
781 | { | |
782 | int result = 0; | |
783 | int interface; | |
784 | union cvmx_l2c_cfg l2c_cfg; | |
785 | union cvmx_smix_en smix_en; | |
786 | const int num_interfaces = cvmx_helper_get_number_of_interfaces(); | |
787 | ||
788 | /* | |
789 | * CN52XX pass 1: Due to a bug in 2nd order CDR, it needs to | |
790 | * be disabled. | |
791 | */ | |
792 | if (OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_0)) | |
793 | __cvmx_helper_errata_qlm_disable_2nd_order_cdr(1); | |
794 | ||
795 | /* | |
796 | * Tell L2 to give the IOB statically higher priority compared | |
797 | * to the cores. This avoids conditions where IO blocks might | |
798 | * be starved under very high L2 loads. | |
799 | */ | |
800 | l2c_cfg.u64 = cvmx_read_csr(CVMX_L2C_CFG); | |
801 | l2c_cfg.s.lrf_arb_mode = 0; | |
802 | l2c_cfg.s.rfb_arb_mode = 0; | |
803 | cvmx_write_csr(CVMX_L2C_CFG, l2c_cfg.u64); | |
804 | ||
805 | /* Make sure SMI/MDIO is enabled so we can query PHYs */ | |
806 | smix_en.u64 = cvmx_read_csr(CVMX_SMIX_EN(0)); | |
807 | if (!smix_en.s.en) { | |
808 | smix_en.s.en = 1; | |
809 | cvmx_write_csr(CVMX_SMIX_EN(0), smix_en.u64); | |
810 | } | |
811 | ||
812 | /* Newer chips actually have two SMI/MDIO interfaces */ | |
813 | if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && | |
814 | !OCTEON_IS_MODEL(OCTEON_CN58XX) && | |
815 | !OCTEON_IS_MODEL(OCTEON_CN50XX)) { | |
816 | smix_en.u64 = cvmx_read_csr(CVMX_SMIX_EN(1)); | |
817 | if (!smix_en.s.en) { | |
818 | smix_en.s.en = 1; | |
819 | cvmx_write_csr(CVMX_SMIX_EN(1), smix_en.u64); | |
820 | } | |
821 | } | |
822 | ||
823 | cvmx_pko_initialize_global(); | |
824 | for (interface = 0; interface < num_interfaces; interface++) { | |
825 | result |= cvmx_helper_interface_probe(interface); | |
826 | if (cvmx_helper_ports_on_interface(interface) > 0) | |
827 | cvmx_dprintf("Interface %d has %d ports (%s)\n", | |
828 | interface, | |
829 | cvmx_helper_ports_on_interface(interface), | |
830 | cvmx_helper_interface_mode_to_string | |
831 | (cvmx_helper_interface_get_mode | |
832 | (interface))); | |
833 | result |= __cvmx_helper_interface_setup_ipd(interface); | |
834 | result |= __cvmx_helper_interface_setup_pko(interface); | |
835 | } | |
836 | ||
837 | result |= __cvmx_helper_global_setup_ipd(); | |
838 | result |= __cvmx_helper_global_setup_pko(); | |
839 | ||
840 | /* Enable any flow control and backpressure */ | |
841 | result |= __cvmx_helper_global_setup_backpressure(); | |
842 | ||
843 | #if CVMX_HELPER_ENABLE_IPD | |
844 | result |= cvmx_helper_ipd_and_packet_input_enable(); | |
845 | #endif | |
846 | return result; | |
847 | } | |
848 | ||
849 | /** | |
850 | * Does core local initialization for packet io | |
851 | * | |
852 | * Returns Zero on success, non-zero on failure | |
853 | */ | |
854 | int cvmx_helper_initialize_packet_io_local(void) | |
855 | { | |
856 | return cvmx_pko_initialize_local(); | |
857 | } | |
858 | ||
859 | /** | |
860 | * Auto configure an IPD/PKO port link state and speed. This | |
861 | * function basically does the equivalent of: | |
862 | * cvmx_helper_link_set(ipd_port, cvmx_helper_link_get(ipd_port)); | |
863 | * | |
864 | * @ipd_port: IPD/PKO port to auto configure | |
865 | * | |
866 | * Returns Link state after configure | |
867 | */ | |
868 | cvmx_helper_link_info_t cvmx_helper_link_autoconf(int ipd_port) | |
869 | { | |
870 | cvmx_helper_link_info_t link_info; | |
871 | int interface = cvmx_helper_get_interface_num(ipd_port); | |
872 | int index = cvmx_helper_get_interface_index_num(ipd_port); | |
873 | ||
874 | if (index >= cvmx_helper_ports_on_interface(interface)) { | |
875 | link_info.u64 = 0; | |
876 | return link_info; | |
877 | } | |
878 | ||
879 | link_info = cvmx_helper_link_get(ipd_port); | |
880 | if (link_info.u64 == port_link_info[ipd_port].u64) | |
881 | return link_info; | |
882 | ||
883 | /* If we fail to set the link speed, port_link_info will not change */ | |
884 | cvmx_helper_link_set(ipd_port, link_info); | |
885 | ||
886 | /* | |
887 | * port_link_info should be the current value, which will be | |
888 | * different than expect if cvmx_helper_link_set() failed. | |
889 | */ | |
890 | return port_link_info[ipd_port]; | |
891 | } | |
892 | ||
893 | /** | |
894 | * Return the link state of an IPD/PKO port as returned by | |
895 | * auto negotiation. The result of this function may not match | |
896 | * Octeon's link config if auto negotiation has changed since | |
897 | * the last call to cvmx_helper_link_set(). | |
898 | * | |
899 | * @ipd_port: IPD/PKO port to query | |
900 | * | |
901 | * Returns Link state | |
902 | */ | |
903 | cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port) | |
904 | { | |
905 | cvmx_helper_link_info_t result; | |
906 | int interface = cvmx_helper_get_interface_num(ipd_port); | |
907 | int index = cvmx_helper_get_interface_index_num(ipd_port); | |
908 | ||
909 | /* The default result will be a down link unless the code below | |
910 | changes it */ | |
911 | result.u64 = 0; | |
912 | ||
913 | if (index >= cvmx_helper_ports_on_interface(interface)) | |
914 | return result; | |
915 | ||
916 | switch (cvmx_helper_interface_get_mode(interface)) { | |
917 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: | |
918 | case CVMX_HELPER_INTERFACE_MODE_PCIE: | |
919 | /* Network links are not supported */ | |
920 | break; | |
921 | case CVMX_HELPER_INTERFACE_MODE_XAUI: | |
922 | result = __cvmx_helper_xaui_link_get(ipd_port); | |
923 | break; | |
924 | case CVMX_HELPER_INTERFACE_MODE_GMII: | |
925 | if (index == 0) | |
926 | result = __cvmx_helper_rgmii_link_get(ipd_port); | |
927 | else { | |
928 | result.s.full_duplex = 1; | |
929 | result.s.link_up = 1; | |
930 | result.s.speed = 1000; | |
931 | } | |
932 | break; | |
933 | case CVMX_HELPER_INTERFACE_MODE_RGMII: | |
934 | result = __cvmx_helper_rgmii_link_get(ipd_port); | |
935 | break; | |
936 | case CVMX_HELPER_INTERFACE_MODE_SPI: | |
937 | result = __cvmx_helper_spi_link_get(ipd_port); | |
938 | break; | |
939 | case CVMX_HELPER_INTERFACE_MODE_SGMII: | |
940 | case CVMX_HELPER_INTERFACE_MODE_PICMG: | |
941 | result = __cvmx_helper_sgmii_link_get(ipd_port); | |
942 | break; | |
943 | case CVMX_HELPER_INTERFACE_MODE_NPI: | |
944 | case CVMX_HELPER_INTERFACE_MODE_LOOP: | |
945 | /* Network links are not supported */ | |
946 | break; | |
947 | } | |
948 | return result; | |
949 | } | |
950 | ||
951 | /** | |
952 | * Configure an IPD/PKO port for the specified link state. This | |
953 | * function does not influence auto negotiation at the PHY level. | |
954 | * The passed link state must always match the link state returned | |
955 | * by cvmx_helper_link_get(). It is normally best to use | |
956 | * cvmx_helper_link_autoconf() instead. | |
957 | * | |
958 | * @ipd_port: IPD/PKO port to configure | |
959 | * @link_info: The new link state | |
960 | * | |
961 | * Returns Zero on success, negative on failure | |
962 | */ | |
963 | int cvmx_helper_link_set(int ipd_port, cvmx_helper_link_info_t link_info) | |
964 | { | |
965 | int result = -1; | |
966 | int interface = cvmx_helper_get_interface_num(ipd_port); | |
967 | int index = cvmx_helper_get_interface_index_num(ipd_port); | |
968 | ||
969 | if (index >= cvmx_helper_ports_on_interface(interface)) | |
970 | return -1; | |
971 | ||
972 | switch (cvmx_helper_interface_get_mode(interface)) { | |
973 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: | |
974 | case CVMX_HELPER_INTERFACE_MODE_PCIE: | |
975 | break; | |
976 | case CVMX_HELPER_INTERFACE_MODE_XAUI: | |
977 | result = __cvmx_helper_xaui_link_set(ipd_port, link_info); | |
978 | break; | |
979 | /* | |
980 | * RGMII/GMII/MII are all treated about the same. Most | |
981 | * functions refer to these ports as RGMII. | |
982 | */ | |
983 | case CVMX_HELPER_INTERFACE_MODE_RGMII: | |
984 | case CVMX_HELPER_INTERFACE_MODE_GMII: | |
985 | result = __cvmx_helper_rgmii_link_set(ipd_port, link_info); | |
986 | break; | |
987 | case CVMX_HELPER_INTERFACE_MODE_SPI: | |
988 | result = __cvmx_helper_spi_link_set(ipd_port, link_info); | |
989 | break; | |
990 | case CVMX_HELPER_INTERFACE_MODE_SGMII: | |
991 | case CVMX_HELPER_INTERFACE_MODE_PICMG: | |
992 | result = __cvmx_helper_sgmii_link_set(ipd_port, link_info); | |
993 | break; | |
994 | case CVMX_HELPER_INTERFACE_MODE_NPI: | |
995 | case CVMX_HELPER_INTERFACE_MODE_LOOP: | |
996 | break; | |
997 | } | |
998 | /* Set the port_link_info here so that the link status is updated | |
999 | no matter how cvmx_helper_link_set is called. We don't change | |
1000 | the value if link_set failed */ | |
1001 | if (result == 0) | |
1002 | port_link_info[ipd_port].u64 = link_info.u64; | |
1003 | return result; | |
1004 | } | |
1005 | ||
1006 | /** | |
1007 | * Configure a port for internal and/or external loopback. Internal loopback | |
1008 | * causes packets sent by the port to be received by Octeon. External loopback | |
1009 | * causes packets received from the wire to sent out again. | |
1010 | * | |
1011 | * @ipd_port: IPD/PKO port to loopback. | |
1012 | * @enable_internal: | |
1013 | * Non zero if you want internal loopback | |
1014 | * @enable_external: | |
1015 | * Non zero if you want external loopback | |
1016 | * | |
1017 | * Returns Zero on success, negative on failure. | |
1018 | */ | |
1019 | int cvmx_helper_configure_loopback(int ipd_port, int enable_internal, | |
1020 | int enable_external) | |
1021 | { | |
1022 | int result = -1; | |
1023 | int interface = cvmx_helper_get_interface_num(ipd_port); | |
1024 | int index = cvmx_helper_get_interface_index_num(ipd_port); | |
1025 | ||
1026 | if (index >= cvmx_helper_ports_on_interface(interface)) | |
1027 | return -1; | |
1028 | ||
1029 | switch (cvmx_helper_interface_get_mode(interface)) { | |
1030 | case CVMX_HELPER_INTERFACE_MODE_DISABLED: | |
1031 | case CVMX_HELPER_INTERFACE_MODE_PCIE: | |
1032 | case CVMX_HELPER_INTERFACE_MODE_SPI: | |
1033 | case CVMX_HELPER_INTERFACE_MODE_NPI: | |
1034 | case CVMX_HELPER_INTERFACE_MODE_LOOP: | |
1035 | break; | |
1036 | case CVMX_HELPER_INTERFACE_MODE_XAUI: | |
1037 | result = | |
1038 | __cvmx_helper_xaui_configure_loopback(ipd_port, | |
1039 | enable_internal, | |
1040 | enable_external); | |
1041 | break; | |
1042 | case CVMX_HELPER_INTERFACE_MODE_RGMII: | |
1043 | case CVMX_HELPER_INTERFACE_MODE_GMII: | |
1044 | result = | |
1045 | __cvmx_helper_rgmii_configure_loopback(ipd_port, | |
1046 | enable_internal, | |
1047 | enable_external); | |
1048 | break; | |
1049 | case CVMX_HELPER_INTERFACE_MODE_SGMII: | |
1050 | case CVMX_HELPER_INTERFACE_MODE_PICMG: | |
1051 | result = | |
1052 | __cvmx_helper_sgmii_configure_loopback(ipd_port, | |
1053 | enable_internal, | |
1054 | enable_external); | |
1055 | break; | |
1056 | } | |
1057 | return result; | |
1058 | } |