1 /* $NetBSD: efinet.c,v 1.8 2018/08/18 15:55:19 kre Exp $ */
2
3 /*-
4 * Copyright (c) 2001 Doug Rabson
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
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 /* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/efinet.c,v 1.6 2004/01/04 23:28:16 obrien Exp $"); */
31
32 #include <sys/param.h>
33
34 #include <lib/libsa/stand.h>
35 #include <lib/libsa/loadfile.h>
36 #include <lib/libsa/net.h>
37 #include <lib/libsa/netif.h>
38
39 #ifdef EFINET_DEBUG
40 #include <lib/libsa/ether_sprintf.c>
41 #endif
42
43 #include <efi.h>
44 #include <efilib.h>
45
46 extern struct netif_driver efi_net;
47
48 int efinet_match(struct netif *, void *);
49 int efinet_probe(struct netif *, void *);
50 void efinet_init(struct iodesc *, void *);
51 int efinet_get(struct iodesc *, void *, size_t, saseconds_t);
52 int efinet_put(struct iodesc *, void *, size_t);
53 void efinet_end(struct netif *);
54
55 struct netif_driver efi_net = {
56 "net", /* netif_bname */
57 efinet_match, /* netif_match */
58 efinet_probe, /* netif_probe */
59 efinet_init, /* netif_init */
60 efinet_get, /* netif_get */
61 efinet_put, /* netif_put */
62 efinet_end, /* netif_end */
63 0, /* netif_ifs */
64 0 /* netif_nifs */
65 };
66
67 #ifdef EFINET_DEBUG
68 static void
dump_mode(EFI_SIMPLE_NETWORK_MODE * mode)69 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode)
70 {
71 int i;
72
73 printf("State = %x\n", mode->State);
74 printf("HwAddressSize = %u\n", mode->HwAddressSize);
75 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize);
76 printf("MaxPacketSize = %u\n", mode->MaxPacketSize);
77 printf("NvRamSize = %u\n", mode->NvRamSize);
78 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize);
79 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask);
80 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting);
81 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount);
82 printf("MCastFilterCount = %u\n", mode->MCastFilterCount);
83 printf("MCastFilter = {");
84 for (i = 0; i < mode->MCastFilterCount; i++)
85 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr));
86 printf(" }\n");
87 printf("CurrentAddress = %s\n",
88 ether_sprintf(mode->CurrentAddress.Addr));
89 printf("BroadcastAddress = %s\n",
90 ether_sprintf(mode->BroadcastAddress.Addr));
91 printf("PermanentAddress = %s\n",
92 ether_sprintf(mode->PermanentAddress.Addr));
93 printf("IfType = %u\n", mode->IfType);
94 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable);
95 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported);
96 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported);
97 printf("MediaPresent = %d\n", mode->MediaPresent);
98 }
99 #endif
100
101 int
efinet_match(struct netif * nif,void * machdep_hint)102 efinet_match(struct netif *nif, void *machdep_hint)
103 {
104
105 return (1);
106 }
107
108 int
efinet_probe(struct netif * nif,void * machdep_hint)109 efinet_probe(struct netif *nif, void *machdep_hint)
110 {
111
112 return (0);
113 }
114
115 int
efinet_put(struct iodesc * desc,void * pkt,size_t len)116 efinet_put(struct iodesc *desc, void *pkt, size_t len)
117 {
118 struct netif *nif = desc->io_netif;
119 EFI_SIMPLE_NETWORK *net;
120 EFI_STATUS status;
121 void *buf;
122
123 net = nif->nif_devdata;
124
125 status = net->Transmit(net, 0, len, pkt, 0, 0, 0);
126 if (status != EFI_SUCCESS)
127 return -1;
128
129 /* Wait for the buffer to be transmitted */
130 do {
131 buf = 0; /* XXX Is this needed? */
132 status = net->GetStatus(net, 0, &buf);
133 /*
134 * XXX EFI1.1 and the E1000 card returns a different
135 * address than we gave. Sigh.
136 */
137 } while (status == EFI_SUCCESS && buf == 0);
138
139 /* XXX How do we deal with status != EFI_SUCCESS now? */
140 return (status == EFI_SUCCESS) ? len : -1;
141 }
142
143
144 int
efinet_get(struct iodesc * desc,void * pkt,size_t len,saseconds_t timeout)145 efinet_get(struct iodesc *desc, void *pkt, size_t len, saseconds_t timeout)
146 {
147 struct netif *nif = desc->io_netif;
148 EFI_SIMPLE_NETWORK *net;
149 EFI_STATUS status;
150 UINTN bufsz;
151 time_t t;
152 char buf[2048];
153
154 net = nif->nif_devdata;
155
156 t = time(0);
157 while ((time(0) - t) < timeout) {
158 bufsz = sizeof(buf);
159 status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0);
160 if (status == EFI_SUCCESS) {
161 /*
162 * XXX EFI1.1 and the E1000 card trash our
163 * workspace if we do not do this silly copy.
164 * Either they are not respecting the len
165 * value or do not like the alignment.
166 */
167 if (bufsz > len)
168 bufsz = len;
169 memcpy(pkt, buf, bufsz);
170 return bufsz;
171 }
172 if (status != EFI_NOT_READY)
173 return 0;
174 }
175
176 return 0;
177 }
178
179 void
efinet_init(struct iodesc * desc,void * machdep_hint)180 efinet_init(struct iodesc *desc, void *machdep_hint)
181 {
182 struct netif *nif = desc->io_netif;
183 EFI_SIMPLE_NETWORK *net;
184 EFI_STATUS status;
185
186 net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private;
187 nif->nif_devdata = net;
188
189 if (net->Mode->State == EfiSimpleNetworkStopped) {
190 status = net->Start(net);
191 if (status != EFI_SUCCESS) {
192 printf("net%d: cannot start interface (status=%ld)\n",
193 nif->nif_unit, status);
194 return;
195 }
196 }
197
198 if (net->Mode->State != EfiSimpleNetworkInitialized) {
199 status = net->Initialize(net, 0, 0);
200 if (status != EFI_SUCCESS) {
201 printf("net%d: cannot init. interface (status=%ld)\n",
202 nif->nif_unit, status);
203 return;
204 }
205 }
206
207 if (net->Mode->ReceiveFilterSetting == 0) {
208 UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |
209 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
210
211 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0);
212 if (status != EFI_SUCCESS) {
213 printf("net%d: cannot set rx. filters (status=%ld)\n",
214 nif->nif_unit, status);
215 return;
216 }
217 }
218
219 #ifdef EFINET_DEBUG
220 dump_mode(net->Mode);
221 #endif
222
223 memcpy(desc->myea, net->Mode->CurrentAddress.Addr, 6);
224 desc->xid = 1;
225
226 return;
227 }
228
229 void
efinet_init_driver(void)230 efinet_init_driver(void)
231 {
232 EFI_STATUS status;
233 UINTN sz;
234 static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID;
235 EFI_HANDLE *handles;
236 int nifs, i;
237 #define MAX_INTERFACES 4
238 static struct netif_dif difs[MAX_INTERFACES];
239 static struct netif_stats stats[MAX_INTERFACES];
240
241 sz = 0;
242 status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0);
243 if (status != EFI_BUFFER_TOO_SMALL)
244 return;
245 handles = (EFI_HANDLE *) alloc(sz);
246 status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles);
247 if (EFI_ERROR(status)) {
248 free(handles);
249 return;
250 }
251
252 nifs = sz / sizeof(EFI_HANDLE);
253 if (nifs > MAX_INTERFACES)
254 nifs = MAX_INTERFACES;
255
256 efi_net.netif_nifs = nifs;
257 efi_net.netif_ifs = difs;
258
259 memset(stats, 0, sizeof(stats));
260 for (i = 0; i < nifs; i++) {
261 struct netif_dif *dif = &efi_net.netif_ifs[i];
262 dif->dif_unit = i;
263 dif->dif_nsel = 1;
264 dif->dif_stats = &stats[i];
265
266 BS->HandleProtocol(handles[i], &netid,
267 (VOID**) &dif->dif_private);
268 }
269
270 return;
271 }
272
273 void
efinet_end(struct netif * nif)274 efinet_end(struct netif *nif)
275 {
276 EFI_SIMPLE_NETWORK *net = nif->nif_devdata;
277
278 net->Shutdown(net);
279 }
280