1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2009-2016 Solarflare Communications Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
18 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * The views and conclusions contained in the software and documentation are
29 * those of the authors and should not be interpreted as representing official
30 * policies, either expressed or implied, of the FreeBSD Project.
31 */
32
33 #include <sys/cdefs.h>
34 #include "efx.h"
35 #include "efx_impl.h"
36
37 __checkReturn efx_rc_t
efx_port_init(__in efx_nic_t * enp)38 efx_port_init(
39 __in efx_nic_t *enp)
40 {
41 efx_port_t *epp = &(enp->en_port);
42 const efx_phy_ops_t *epop = epp->ep_epop;
43 efx_rc_t rc;
44
45 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
46 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
47 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
48
49 if (enp->en_mod_flags & EFX_MOD_PORT) {
50 rc = EINVAL;
51 goto fail1;
52 }
53
54 enp->en_mod_flags |= EFX_MOD_PORT;
55
56 epp->ep_mac_type = EFX_MAC_INVALID;
57 epp->ep_link_mode = EFX_LINK_UNKNOWN;
58 epp->ep_mac_drain = B_TRUE;
59
60 /* Configure the MAC */
61 if ((rc = efx_mac_select(enp)) != 0)
62 goto fail1;
63
64 epp->ep_emop->emo_reconfigure(enp);
65
66 /* Pick up current phy capababilities */
67 (void) efx_port_poll(enp, NULL);
68
69 /*
70 * Turn on the PHY if available, otherwise reset it, and
71 * reconfigure it with the current configuration.
72 */
73 if (epop->epo_power != NULL) {
74 if ((rc = epop->epo_power(enp, B_TRUE)) != 0)
75 goto fail2;
76 } else {
77 if ((rc = epop->epo_reset(enp)) != 0)
78 goto fail2;
79 }
80
81 EFSYS_ASSERT(enp->en_reset_flags & EFX_RESET_PHY);
82 enp->en_reset_flags &= ~EFX_RESET_PHY;
83
84 if ((rc = epop->epo_reconfigure(enp)) != 0)
85 goto fail3;
86
87 return (0);
88
89 fail3:
90 EFSYS_PROBE(fail3);
91 fail2:
92 EFSYS_PROBE(fail2);
93 fail1:
94 EFSYS_PROBE1(fail1, efx_rc_t, rc);
95
96 enp->en_mod_flags &= ~EFX_MOD_PORT;
97
98 return (rc);
99 }
100
101 __checkReturn efx_rc_t
efx_port_poll(__in efx_nic_t * enp,__out_opt efx_link_mode_t * link_modep)102 efx_port_poll(
103 __in efx_nic_t *enp,
104 __out_opt efx_link_mode_t *link_modep)
105 {
106 efx_port_t *epp = &(enp->en_port);
107 const efx_mac_ops_t *emop = epp->ep_emop;
108 efx_link_mode_t ignore_link_mode;
109 efx_rc_t rc;
110
111 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
112 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT);
113
114 EFSYS_ASSERT(emop != NULL);
115
116 if (link_modep == NULL)
117 link_modep = &ignore_link_mode;
118
119 if ((rc = emop->emo_poll(enp, link_modep)) != 0)
120 goto fail1;
121
122 return (0);
123
124 fail1:
125 EFSYS_PROBE1(fail1, efx_rc_t, rc);
126
127 return (rc);
128 }
129
130 #if EFSYS_OPT_LOOPBACK
131
132 __checkReturn efx_rc_t
efx_port_loopback_set(__in efx_nic_t * enp,__in efx_link_mode_t link_mode,__in efx_loopback_type_t loopback_type)133 efx_port_loopback_set(
134 __in efx_nic_t *enp,
135 __in efx_link_mode_t link_mode,
136 __in efx_loopback_type_t loopback_type)
137 {
138 efx_port_t *epp = &(enp->en_port);
139 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
140 const efx_mac_ops_t *emop = epp->ep_emop;
141 efx_rc_t rc;
142
143 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
144 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT);
145 EFSYS_ASSERT(emop != NULL);
146
147 EFSYS_ASSERT(link_mode < EFX_LINK_NMODES);
148
149 if (EFX_TEST_QWORD_BIT(encp->enc_loopback_types[link_mode],
150 (int)loopback_type) == 0) {
151 rc = ENOTSUP;
152 goto fail1;
153 }
154
155 if (epp->ep_loopback_type == loopback_type &&
156 epp->ep_loopback_link_mode == link_mode)
157 return (0);
158
159 if ((rc = emop->emo_loopback_set(enp, link_mode, loopback_type)) != 0)
160 goto fail2;
161
162 return (0);
163
164 fail2:
165 EFSYS_PROBE(fail2);
166 fail1:
167 EFSYS_PROBE1(fail1, efx_rc_t, rc);
168
169 return (rc);
170 }
171
172 #if EFSYS_OPT_NAMES
173
174 static const char * const __efx_loopback_type_name[] = {
175 "OFF",
176 "DATA",
177 "GMAC",
178 "XGMII",
179 "XGXS",
180 "XAUI",
181 "GMII",
182 "SGMII",
183 "XGBR",
184 "XFI",
185 "XAUI_FAR",
186 "GMII_FAR",
187 "SGMII_FAR",
188 "XFI_FAR",
189 "GPHY",
190 "PHY_XS",
191 "PCS",
192 "PMA_PMD",
193 "XPORT",
194 "XGMII_WS",
195 "XAUI_WS",
196 "XAUI_WS_FAR",
197 "XAUI_WS_NEAR",
198 "GMII_WS",
199 "XFI_WS",
200 "XFI_WS_FAR",
201 "PHYXS_WS",
202 "PMA_INT",
203 "SD_NEAR",
204 "SD_FAR",
205 "PMA_INT_WS",
206 "SD_FEP2_WS",
207 "SD_FEP1_5_WS",
208 "SD_FEP_WS",
209 "SD_FES_WS",
210 "AOE_INT_NEAR",
211 "DATA_WS",
212 "FORCE_EXT_LINK",
213 };
214
215 __checkReturn const char *
efx_loopback_type_name(__in efx_nic_t * enp,__in efx_loopback_type_t type)216 efx_loopback_type_name(
217 __in efx_nic_t *enp,
218 __in efx_loopback_type_t type)
219 {
220 EFX_STATIC_ASSERT(EFX_ARRAY_SIZE(__efx_loopback_type_name) ==
221 EFX_LOOPBACK_NTYPES);
222
223 _NOTE(ARGUNUSED(enp))
224 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
225 EFSYS_ASSERT3U(type, <, EFX_LOOPBACK_NTYPES);
226
227 return (__efx_loopback_type_name[type]);
228 }
229
230 #endif /* EFSYS_OPT_NAMES */
231
232 #endif /* EFSYS_OPT_LOOPBACK */
233
234 void
efx_port_fini(__in efx_nic_t * enp)235 efx_port_fini(
236 __in efx_nic_t *enp)
237 {
238 efx_port_t *epp = &(enp->en_port);
239 const efx_phy_ops_t *epop = epp->ep_epop;
240
241 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
242 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
243 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
244 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT);
245
246 EFSYS_ASSERT(epp->ep_mac_drain);
247
248 epp->ep_emop = NULL;
249 epp->ep_mac_type = EFX_MAC_INVALID;
250 epp->ep_mac_drain = B_FALSE;
251
252 /* Turn off the PHY */
253 if (epop->epo_power != NULL)
254 (void) epop->epo_power(enp, B_FALSE);
255
256 enp->en_mod_flags &= ~EFX_MOD_PORT;
257 }
258