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("$FreeBSD$");
33
34 #include "efsys.h"
35 #include "efx.h"
36 #include "efx_types.h"
37 #include "efx_impl.h"
38
39 __checkReturn efx_rc_t
efx_port_init(__in efx_nic_t * enp)40 efx_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 efx_rc_t 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
92 fail3:
93 EFSYS_PROBE(fail3);
94 fail2:
95 EFSYS_PROBE(fail2);
96 fail1:
97 EFSYS_PROBE1(fail1, efx_rc_t, rc);
98
99 enp->en_mod_flags &= ~EFX_MOD_PORT;
100
101 return (rc);
102 }
103
104 __checkReturn efx_rc_t
efx_port_poll(__in efx_nic_t * enp,__out_opt efx_link_mode_t * link_modep)105 efx_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 efx_rc_t 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
128 fail1:
129 EFSYS_PROBE1(fail1, efx_rc_t, rc);
130
131 return (rc);
132 }
133
134 #if EFSYS_OPT_LOOPBACK
135
136 __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)137 efx_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 efx_rc_t 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
168 fail2:
169 EFSYS_PROBE(fail2);
170 fail1:
171 EFSYS_PROBE1(fail1, efx_rc_t, rc);
172
173 return (rc);
174 }
175
176 #if EFSYS_OPT_NAMES
177
178 static 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 *
efx_loopback_type_name(__in efx_nic_t * enp,__in efx_loopback_type_t type)217 efx_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
efx_port_fini(__in efx_nic_t * enp)236 efx_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