1 /*
2 * aQuantia Corporation Network Driver
3 * Copyright (C) 2014-2017 aQuantia Corporation. 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
7 * are met:
8 *
9 * (1) Redistributions of source code must retain the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer.
12 *
13 * (2) Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * (3)The name of the author may not be used to endorse or promote
19 * products derived from this software without specific prior
20 * written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
28 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 #include <sys/param.h>
39 #include <sys/kernel.h>
40 #include <sys/socket.h>
41 #include <sys/bitstring.h>
42 #include <net/if.h>
43 #include <net/if_media.h>
44 #include <net/if_var.h>
45 #include <net/if_dl.h>
46 #include <net/ethernet.h>
47 #include <net/iflib.h>
48
49 #include "aq_device.h"
50
51 #include "aq_fw.h"
52 #include "aq_dbg.h"
53
54 #define AQ_HW_SUPPORT_SPEED(softc, s) ((softc)->link_speeds & s)
55
aq_mediastatus_update(aq_dev_t * aq_dev,u32 link_speed,const struct aq_hw_fc_info * fc_neg)56 void aq_mediastatus_update(aq_dev_t *aq_dev, u32 link_speed, const struct aq_hw_fc_info *fc_neg)
57 {
58 struct aq_hw *hw = &aq_dev->hw;
59
60 aq_dev->media_active = 0;
61 if (fc_neg->fc_rx)
62 aq_dev->media_active |= IFM_ETH_RXPAUSE;
63 if (fc_neg->fc_tx)
64 aq_dev->media_active |= IFM_ETH_TXPAUSE;
65
66 switch(link_speed) {
67 case 100:
68 aq_dev->media_active |= IFM_100_TX | IFM_FDX;
69 break;
70
71 case 1000:
72 aq_dev->media_active |= IFM_1000_T | IFM_FDX;
73 break;
74
75 case 2500:
76 aq_dev->media_active |= IFM_2500_T | IFM_FDX;
77 break;
78
79 case 5000:
80 aq_dev->media_active |= IFM_5000_T | IFM_FDX;
81 break;
82
83 case 10000:
84 aq_dev->media_active |= IFM_10G_T | IFM_FDX;
85 break;
86
87 case 0:
88 default:
89 aq_dev->media_active |= IFM_NONE;
90 break;
91 }
92
93 if (hw->link_rate == aq_fw_speed_auto)
94 aq_dev->media_active |= IFM_AUTO;
95 }
96
aq_mediastatus(if_t ifp,struct ifmediareq * ifmr)97 void aq_mediastatus(if_t ifp, struct ifmediareq *ifmr)
98 {
99 aq_dev_t *aq_dev = iflib_get_softc(if_getsoftc(ifp));
100
101 ifmr->ifm_active = IFM_ETHER;
102 ifmr->ifm_status = IFM_AVALID;
103
104 if (aq_dev->linkup)
105 ifmr->ifm_status |= IFM_ACTIVE;
106
107 ifmr->ifm_active |= aq_dev->media_active;
108 }
109
aq_mediachange(if_t ifp)110 int aq_mediachange(if_t ifp)
111 {
112 aq_dev_t *aq_dev = iflib_get_softc(if_getsoftc(ifp));
113 struct aq_hw *hw = &aq_dev->hw;
114 int old_media_rate = if_getbaudrate(ifp);
115 int old_link_speed = hw->link_rate;
116 struct ifmedia *ifm = iflib_get_media(aq_dev->ctx);
117 int user_media = IFM_SUBTYPE(ifm->ifm_media);
118 uint64_t media_rate;
119
120 AQ_DBG_ENTERA("media 0x%x", user_media);
121
122 if (!(ifm->ifm_media & IFM_ETHER)) {
123 device_printf(aq_dev->dev, "%s(): aq_dev interface - bad media: 0x%X", __FUNCTION__, ifm->ifm_media);
124 return (0); // should never happen
125 }
126
127 switch (user_media) {
128 case IFM_AUTO: // auto-select media
129 hw->link_rate = aq_fw_speed_auto;
130 media_rate = -1;
131 break;
132
133 case IFM_NONE: // disable media
134 media_rate = 0;
135 hw->link_rate = 0;
136 iflib_link_state_change(aq_dev->ctx, LINK_STATE_DOWN, 0);
137 break;
138
139 case IFM_100_TX:
140 hw->link_rate = aq_fw_100M;
141 media_rate = 100 * 1000;
142 break;
143
144 case IFM_1000_T:
145 hw->link_rate = aq_fw_1G;
146 media_rate = 1000 * 1000;
147 break;
148
149 case IFM_2500_T:
150 hw->link_rate = aq_fw_2G5;
151 media_rate = 2500 * 1000;
152 break;
153
154 case IFM_5000_T:
155 hw->link_rate = aq_fw_5G;
156 media_rate = 5000 * 1000;
157 break;
158
159 case IFM_10G_T:
160 hw->link_rate = aq_fw_10G;
161 media_rate = 10000 * 1000;
162 break;
163
164 default: // should never happen
165 aq_log_error("unknown media: 0x%X", user_media);
166 return (0);
167 }
168 hw->fc.fc_rx = (ifm->ifm_media & IFM_ETH_RXPAUSE) ? 1 : 0;
169 hw->fc.fc_tx = (ifm->ifm_media & IFM_ETH_TXPAUSE) ? 1 : 0;
170
171 /* In down state just remember new link speed */
172 if (!(if_getflags(ifp) & IFF_UP))
173 return (0);
174
175 if ((media_rate != old_media_rate) || (hw->link_rate != old_link_speed)) {
176 // re-initialize hardware with new parameters
177 aq_hw_set_link_speed(hw, hw->link_rate);
178 }
179
180 AQ_DBG_EXIT(0);
181 return (0);
182 }
183
aq_add_media_types(aq_dev_t * aq_dev,int media_link_speed)184 static void aq_add_media_types(aq_dev_t *aq_dev, int media_link_speed)
185 {
186 ifmedia_add(aq_dev->media, IFM_ETHER | media_link_speed | IFM_FDX, 0, NULL);
187 ifmedia_add(aq_dev->media, IFM_ETHER | media_link_speed | IFM_FDX |
188 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL);
189 ifmedia_add(aq_dev->media, IFM_ETHER | media_link_speed | IFM_FDX |
190 IFM_ETH_RXPAUSE, 0, NULL);
191 ifmedia_add(aq_dev->media, IFM_ETHER | media_link_speed | IFM_FDX |
192 IFM_ETH_TXPAUSE, 0, NULL);
193 }
aq_initmedia(aq_dev_t * aq_dev)194 void aq_initmedia(aq_dev_t *aq_dev)
195 {
196 AQ_DBG_ENTER();
197
198 // ifconfig eth0 none
199 ifmedia_add(aq_dev->media, IFM_ETHER | IFM_NONE, 0, NULL);
200
201 // ifconfig eth0 auto
202 aq_add_media_types(aq_dev, IFM_AUTO);
203
204 if (AQ_HW_SUPPORT_SPEED(aq_dev, AQ_LINK_100M))
205 aq_add_media_types(aq_dev, IFM_100_TX);
206 if (AQ_HW_SUPPORT_SPEED(aq_dev, AQ_LINK_1G))
207 aq_add_media_types(aq_dev, IFM_1000_T);
208 if (AQ_HW_SUPPORT_SPEED(aq_dev, AQ_LINK_2G5))
209 aq_add_media_types(aq_dev, IFM_2500_T);
210 if (AQ_HW_SUPPORT_SPEED(aq_dev, AQ_LINK_5G))
211 aq_add_media_types(aq_dev, IFM_5000_T);
212 if (AQ_HW_SUPPORT_SPEED(aq_dev, AQ_LINK_10G))
213 aq_add_media_types(aq_dev, IFM_10G_T);
214
215 // link is initially autoselect
216 ifmedia_set(aq_dev->media, IFM_ETHER | IFM_AUTO | IFM_FDX | IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE);
217
218 AQ_DBG_EXIT(0);
219 }
220