efx_port.c revision 284555 
1/*-
2 * Copyright (c) 2009-2015 Solarflare Communications Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 *    this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 *    this list of conditions and the following disclaimer in the documentation
12 *    and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: stable/10/sys/dev/sfxge/common/efx_port.c 284555 2015-06-18 15:46:39Z arybchik $");
33
34#include "efsys.h"
35#include "efx.h"
36#include "efx_types.h"
37#include "efx_impl.h"
38
39	__checkReturn	int
40efx_port_init(
41	__in		efx_nic_t *enp)
42{
43	efx_port_t *epp = &(enp->en_port);
44	efx_phy_ops_t *epop = epp->ep_epop;
45	int rc;
46
47	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
48	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
49	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
50
51	if (enp->en_mod_flags & EFX_MOD_PORT) {
52		rc = EINVAL;
53		goto fail1;
54	}
55
56	enp->en_mod_flags |= EFX_MOD_PORT;
57
58	epp->ep_mac_type = EFX_MAC_INVALID;
59	epp->ep_link_mode = EFX_LINK_UNKNOWN;
60	epp->ep_mac_poll_needed = B_TRUE;
61	epp->ep_mac_drain = B_TRUE;
62
63	/* Configure the MAC */
64	if ((rc = efx_mac_select(enp)) != 0)
65		goto fail1;
66
67	epp->ep_emop->emo_reconfigure(enp);
68
69	/* Pick up current phy capababilities */
70	efx_port_poll(enp, NULL);
71
72	/*
73	 * Turn on the PHY if available, otherwise reset it, and
74	 * reconfigure it with the current configuration.
75	 */
76	if (epop->epo_power != NULL) {
77		if ((rc = epop->epo_power(enp, B_TRUE)) != 0)
78			goto fail2;
79	} else {
80		if ((rc = epop->epo_reset(enp)) != 0)
81			goto fail2;
82	}
83
84	EFSYS_ASSERT(enp->en_reset_flags & EFX_RESET_PHY);
85	enp->en_reset_flags &= ~EFX_RESET_PHY;
86
87	if ((rc = epop->epo_reconfigure(enp)) != 0)
88		goto fail3;
89
90	return (0);
91
92fail3:
93	EFSYS_PROBE(fail3);
94fail2:
95	EFSYS_PROBE(fail2);
96fail1:
97	EFSYS_PROBE1(fail1, int, rc);
98
99	enp->en_mod_flags &= ~EFX_MOD_PORT;
100
101	return (rc);
102}
103
104	__checkReturn	int
105efx_port_poll(
106	__in		efx_nic_t *enp,
107	__out_opt	efx_link_mode_t	*link_modep)
108{
109	efx_port_t *epp = &(enp->en_port);
110	efx_mac_ops_t *emop = epp->ep_emop;
111	efx_link_mode_t ignore_link_mode;
112	int rc;
113
114	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
115	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT);
116
117	EFSYS_ASSERT(emop != NULL);
118	EFSYS_ASSERT(!epp->ep_mac_stats_pending);
119
120	if (link_modep == NULL)
121		link_modep = &ignore_link_mode;
122
123	if ((rc = emop->emo_poll(enp, link_modep)) != 0)
124		goto fail1;
125
126	return (0);
127
128fail1:
129	EFSYS_PROBE1(fail1, int, rc);
130
131	return (rc);
132}
133
134#if EFSYS_OPT_LOOPBACK
135
136	__checkReturn	int
137efx_port_loopback_set(
138	__in		efx_nic_t *enp,
139	__in		efx_link_mode_t link_mode,
140	__in		efx_loopback_type_t loopback_type)
141{
142	efx_port_t *epp = &(enp->en_port);
143	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
144	efx_mac_ops_t *emop = epp->ep_emop;
145	int rc;
146
147	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
148	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT);
149	EFSYS_ASSERT(emop != NULL);
150
151	EFSYS_ASSERT(link_mode < EFX_LINK_NMODES);
152
153	if (EFX_TEST_QWORD_BIT(encp->enc_loopback_types[link_mode],
154		loopback_type) == 0) {
155		rc = ENOTSUP;
156		goto fail1;
157	}
158
159	if (epp->ep_loopback_type == loopback_type &&
160	    epp->ep_loopback_link_mode == link_mode)
161		return (0);
162
163	if ((rc = emop->emo_loopback_set(enp, link_mode, loopback_type)) != 0)
164		goto fail2;
165
166	return (0);
167
168fail2:
169	EFSYS_PROBE(fail2);
170fail1:
171	EFSYS_PROBE1(fail1, int, rc);
172
173	return (rc);
174}
175
176#if EFSYS_OPT_NAMES
177
178static const char 	*__efx_loopback_type_name[] = {
179	"OFF",
180	"DATA",
181	"GMAC",
182	"XGMII",
183	"XGXS",
184	"XAUI",
185	"GMII",
186	"SGMII",
187	"XGBR",
188	"XFI",
189	"XAUI_FAR",
190	"GMII_FAR",
191	"SGMII_FAR",
192	"XFI_FAR",
193	"GPHY",
194	"PHY_XS",
195	"PCS",
196	"PMA_PMD",
197	"XPORT",
198	"XGMII_WS",
199	"XAUI_WS",
200	"XAUI_WS_FAR",
201	"XAUI_WS_NEAR",
202	"GMII_WS",
203	"XFI_WS",
204	"XFI_WS_FAR",
205	"PHYXS_WS",
206	"PMA_INT",
207	"SD_NEAR",
208	"SD_FAR",
209	"PMA_INT_WS",
210	"SD_FEP2_WS",
211	"SD_FEP1_5_WS",
212	"SD_FEP_WS",
213	"SD_FES_WS",
214};
215
216	__checkReturn	const char *
217efx_loopback_type_name(
218	__in		efx_nic_t *enp,
219	__in		efx_loopback_type_t type)
220{
221	EFX_STATIC_ASSERT(EFX_ARRAY_SIZE(__efx_loopback_type_name) ==
222	    EFX_LOOPBACK_NTYPES);
223
224	_NOTE(ARGUNUSED(enp))
225	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
226	EFSYS_ASSERT3U(type, <, EFX_LOOPBACK_NTYPES);
227
228	return (__efx_loopback_type_name[type]);
229}
230
231#endif	/* EFSYS_OPT_NAMES */
232
233#endif	/* EFSYS_OPT_LOOPBACK */
234
235			void
236efx_port_fini(
237	__in		efx_nic_t *enp)
238{
239	efx_port_t *epp = &(enp->en_port);
240	efx_phy_ops_t *epop = epp->ep_epop;
241
242	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
243	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
244	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
245	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT);
246
247	EFSYS_ASSERT(epp->ep_mac_drain);
248
249	epp->ep_emop = NULL;
250	epp->ep_mac_type = EFX_MAC_INVALID;
251	epp->ep_mac_drain = B_FALSE;
252	epp->ep_mac_poll_needed = B_FALSE;
253
254	/* Turn off the PHY */
255	if (epop->epo_power != NULL)
256		(void) epop->epo_power(enp, B_FALSE);
257
258	enp->en_mod_flags &= ~EFX_MOD_PORT;
259}
260