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