1/*-
2 * Copyright (c) 2000-2001 Benno Rice
3 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2000-2001 Benno Rice
3 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
|
29__FBSDID("$FreeBSD: head/sys/boot/uboot/lib/net.c 182723 2008-09-03 15:39:50Z raj $");
| 29__FBSDID("$FreeBSD: head/sys/boot/uboot/lib/net.c 183598 2008-10-04 13:10:38Z raj $");
|
30
31#include <sys/param.h>
32#include <sys/types.h>
33#include <sys/socket.h>
34
35#include <net/if.h>
36#include <netinet/in.h>
37#include <netinet/in_systm.h>
38#include <netinet/if_ether.h>
39#include <netinet/ip.h>
40
41#include <stand.h>
42#include <net.h>
43#include <netif.h>
44
45#include "api_public.h"
46#include "glue.h"
47#include "libuboot.h"
48
49#define NETIF_DEBUG
50#define NETIF_VERBOSE_DEBUG
51#undef NETIF_DEBUG
52#undef NETIF_VERBOSE_DEBUG
53
54
55static int net_probe(struct netif *, void *);
56static int net_match(struct netif *, void *);
57static void net_init(struct iodesc *, void *);
58static int net_get(struct iodesc *, void *, size_t, time_t);
59static int net_put(struct iodesc *, void *, size_t);
60static void net_end(struct netif *);
61
62extern int devs_no;
63extern struct netif_stats net_stats[];
64
65struct netif_dif net_ifs[] = {
66 /* dif_unit dif_nsel dif_stats dif_private */
67 { 0, 1, &net_stats[0], 0, },
68};
69
70struct netif_stats net_stats[NENTS(net_ifs)];
71
72struct netif_driver uboot_net = {
73 "uboot_eth", /* netif_bname */
74 net_match, /* netif_match */
75 net_probe, /* netif_probe */
76 net_init, /* netif_init */
77 net_get, /* netif_get */
78 net_put, /* netif_put */
79 net_end, /* netif_end */
80 net_ifs, /* netif_ifs */
81 NENTS(net_ifs) /* netif_nifs */
82};
83
84struct uboot_softc {
85 u_int32_t sc_pad;
86 u_int8_t sc_rxbuf[ETHER_MAX_LEN];
87 u_int8_t sc_txbuf[ETHER_MAX_LEN + PKTALIGN];
88 u_int8_t *sc_txbufp;
89 int sc_handle; /* device handle for ub_dev_xxx */
90};
91
92static struct uboot_softc uboot_softc;
93
94static int
95net_match(struct netif *nif, void *machdep_hint)
96{
97 char **a = (char **)machdep_hint;
98
99 if (memcmp("net", *a, 3) == 0)
100 return (1);
101
102 printf("net_match: could not match network device\n");
103 return (0);
104}
105
106static int
107net_probe(struct netif *nif, void *machdep_hint)
108{
109 struct device_info *di;
110 int i;
111
112 for (i = 0; i < devs_no; i++)
113 if ((di = ub_dev_get(i)) != NULL)
114 if (di->type == DEV_TYP_NET)
115 break;
116
117 if (i == devs_no) {
118 printf("net_probe: no network devices found, maybe not"
119 " enumerated yet..?\n");
120 return (-1);
121 }
122
123#if defined(NETIF_DEBUG)
124 printf("net_probe: network device found: %d\n", i);
125#endif
126 uboot_softc.sc_handle = i;
127
128 return (0);
129}
130
131static int
132net_put(struct iodesc *desc, void *pkt, size_t len)
133{
134 struct netif *nif = desc->io_netif;
135 struct uboot_softc *sc = nif->nif_devdata;
136 size_t sendlen;
137 ssize_t rv;
138
139#if defined(NETIF_DEBUG)
140 struct ether_header *eh;
141
142 printf("net_put: desc 0x%x, pkt 0x%x, len %d\n", desc, pkt, len);
143 eh = pkt;
144 printf("dst: %s ", ether_sprintf(eh->ether_dhost));
145 printf("src: %s ", ether_sprintf(eh->ether_shost));
146 printf("type: 0x%x\n", eh->ether_type & 0xffff);
147#endif
148
149 if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) {
150 sendlen = ETHER_MIN_LEN - ETHER_CRC_LEN;
151 bzero(sc->sc_txbufp, sendlen);
152 } else
153 sendlen = len;
154
155 memcpy(sc->sc_txbufp, pkt, len);
156
157 rv = ub_dev_send(sc->sc_handle, sc->sc_txbufp, sendlen);
158
159#if defined(NETIF_DEBUG)
160 printf("net_put: ub_send returned %d\n", rv);
161#endif
162 if (rv == 0)
163 rv = len;
164 else
165 rv = -1;
166
167 return (rv);
168}
169
170static int
171net_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
172{
173 struct netif *nif = desc->io_netif;
174 struct uboot_softc *sc = nif->nif_devdata;
175 time_t t;
| 30
31#include <sys/param.h>
32#include <sys/types.h>
33#include <sys/socket.h>
34
35#include <net/if.h>
36#include <netinet/in.h>
37#include <netinet/in_systm.h>
38#include <netinet/if_ether.h>
39#include <netinet/ip.h>
40
41#include <stand.h>
42#include <net.h>
43#include <netif.h>
44
45#include "api_public.h"
46#include "glue.h"
47#include "libuboot.h"
48
49#define NETIF_DEBUG
50#define NETIF_VERBOSE_DEBUG
51#undef NETIF_DEBUG
52#undef NETIF_VERBOSE_DEBUG
53
54
55static int net_probe(struct netif *, void *);
56static int net_match(struct netif *, void *);
57static void net_init(struct iodesc *, void *);
58static int net_get(struct iodesc *, void *, size_t, time_t);
59static int net_put(struct iodesc *, void *, size_t);
60static void net_end(struct netif *);
61
62extern int devs_no;
63extern struct netif_stats net_stats[];
64
65struct netif_dif net_ifs[] = {
66 /* dif_unit dif_nsel dif_stats dif_private */
67 { 0, 1, &net_stats[0], 0, },
68};
69
70struct netif_stats net_stats[NENTS(net_ifs)];
71
72struct netif_driver uboot_net = {
73 "uboot_eth", /* netif_bname */
74 net_match, /* netif_match */
75 net_probe, /* netif_probe */
76 net_init, /* netif_init */
77 net_get, /* netif_get */
78 net_put, /* netif_put */
79 net_end, /* netif_end */
80 net_ifs, /* netif_ifs */
81 NENTS(net_ifs) /* netif_nifs */
82};
83
84struct uboot_softc {
85 u_int32_t sc_pad;
86 u_int8_t sc_rxbuf[ETHER_MAX_LEN];
87 u_int8_t sc_txbuf[ETHER_MAX_LEN + PKTALIGN];
88 u_int8_t *sc_txbufp;
89 int sc_handle; /* device handle for ub_dev_xxx */
90};
91
92static struct uboot_softc uboot_softc;
93
94static int
95net_match(struct netif *nif, void *machdep_hint)
96{
97 char **a = (char **)machdep_hint;
98
99 if (memcmp("net", *a, 3) == 0)
100 return (1);
101
102 printf("net_match: could not match network device\n");
103 return (0);
104}
105
106static int
107net_probe(struct netif *nif, void *machdep_hint)
108{
109 struct device_info *di;
110 int i;
111
112 for (i = 0; i < devs_no; i++)
113 if ((di = ub_dev_get(i)) != NULL)
114 if (di->type == DEV_TYP_NET)
115 break;
116
117 if (i == devs_no) {
118 printf("net_probe: no network devices found, maybe not"
119 " enumerated yet..?\n");
120 return (-1);
121 }
122
123#if defined(NETIF_DEBUG)
124 printf("net_probe: network device found: %d\n", i);
125#endif
126 uboot_softc.sc_handle = i;
127
128 return (0);
129}
130
131static int
132net_put(struct iodesc *desc, void *pkt, size_t len)
133{
134 struct netif *nif = desc->io_netif;
135 struct uboot_softc *sc = nif->nif_devdata;
136 size_t sendlen;
137 ssize_t rv;
138
139#if defined(NETIF_DEBUG)
140 struct ether_header *eh;
141
142 printf("net_put: desc 0x%x, pkt 0x%x, len %d\n", desc, pkt, len);
143 eh = pkt;
144 printf("dst: %s ", ether_sprintf(eh->ether_dhost));
145 printf("src: %s ", ether_sprintf(eh->ether_shost));
146 printf("type: 0x%x\n", eh->ether_type & 0xffff);
147#endif
148
149 if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) {
150 sendlen = ETHER_MIN_LEN - ETHER_CRC_LEN;
151 bzero(sc->sc_txbufp, sendlen);
152 } else
153 sendlen = len;
154
155 memcpy(sc->sc_txbufp, pkt, len);
156
157 rv = ub_dev_send(sc->sc_handle, sc->sc_txbufp, sendlen);
158
159#if defined(NETIF_DEBUG)
160 printf("net_put: ub_send returned %d\n", rv);
161#endif
162 if (rv == 0)
163 rv = len;
164 else
165 rv = -1;
166
167 return (rv);
168}
169
170static int
171net_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
172{
173 struct netif *nif = desc->io_netif;
174 struct uboot_softc *sc = nif->nif_devdata;
175 time_t t;
|
176 int length;
| 176 int err, rlen;
|
177
178#if defined(NETIF_DEBUG)
179 printf("net_get: pkt %x, len %d, timeout %d\n", pkt, len, timeout);
180#endif
181 t = getsecs();
182 do {
| 177
178#if defined(NETIF_DEBUG)
179 printf("net_get: pkt %x, len %d, timeout %d\n", pkt, len, timeout);
180#endif
181 t = getsecs();
182 do {
|
183 length = ub_dev_recv(sc->sc_handle, sc->sc_rxbuf, len);
184 } while ((length == -1 || length == 0) &&
185 (getsecs() - t < timeout));
| 183 err = ub_dev_recv(sc->sc_handle, sc->sc_rxbuf, len, &rlen);
|
186
| 184
|
| 185 if (err != 0) {
186 printf("net_get: ub_dev_recv() failed, error=%d\n",
187 err);
188 rlen = 0;
189 break;
190 }
191 } while ((rlen == -1 || rlen == 0) && (getsecs() - t < timeout));
192
|
187#if defined(NETIF_DEBUG)
| 193#if defined(NETIF_DEBUG)
|
188 printf("net_get: received len %d (%x)\n", length, length);
| 194 printf("net_get: received len %d (%x)\n", rlen, rlen);
|
189#endif
190
| 195#endif
196
|
191 if (length > 0) {
192 memcpy(pkt, sc->sc_rxbuf, MIN(len, length));
193 if (length != len) {
| 197 if (rlen > 0) {
198 memcpy(pkt, sc->sc_rxbuf, MIN(len, rlen));
199 if (rlen != len) {
|
194#if defined(NETIF_DEBUG)
| 200#if defined(NETIF_DEBUG)
|
195 printf("net_get: len %x, length %x\n", len, length);
| 201 printf("net_get: len %x, rlen %x\n", len, rlen);
|
196#endif
197 }
| 202#endif
203 }
|
198 return (length);
| 204 return (rlen);
|
199 }
200
201 return (-1);
202}
203
| 205 }
206
207 return (-1);
208}
209
|
204
| |
205static void
206net_init(struct iodesc *desc, void *machdep_hint)
207{
208 struct netif *nif = desc->io_netif;
209 struct uboot_softc *sc;
210 struct device_info *di;
211 int err;
212
213 sc = nif->nif_devdata = &uboot_softc;
214
215 if ((err = ub_dev_open(sc->sc_handle)) != 0)
216 panic("%s%d: initialisation failed with error %d\n",
217 nif->nif_driver->netif_bname, nif->nif_unit, err);
218
219 /* Get MAC address */
220 di = ub_dev_get(sc->sc_handle);
221 memcpy(desc->myea, di->di_net.hwaddr, 6);
222 if (memcmp (desc->myea, "\0\0\0\0\0\0", 6) == 0) {
223 panic("%s%d: empty ethernet address!",
224 nif->nif_driver->netif_bname, nif->nif_unit);
225 }
226
227#if defined(NETIF_DEBUG)
228 printf("network: %s%d attached to %s\n", nif->nif_driver->netif_bname,
229 nif->nif_unit, ether_sprintf(desc->myea));
230#endif
231
232 /* Set correct alignment for TX packets */
233 sc->sc_txbufp = sc->sc_txbuf;
234 if ((unsigned long)sc->sc_txbufp % PKTALIGN)
235 sc->sc_txbufp += PKTALIGN -
236 (unsigned long)sc->sc_txbufp % PKTALIGN;
237}
238
239
240static void
241net_end(struct netif *nif)
242{
243 struct uboot_softc *sc = nif->nif_devdata;
244 int err;
245
246 if ((err = ub_dev_close(sc->sc_handle)) != 0)
247 panic("%s%d: net_end failed with error %d\n",
248 nif->nif_driver->netif_bname, nif->nif_unit, err);
249}
| 210static void
211net_init(struct iodesc *desc, void *machdep_hint)
212{
213 struct netif *nif = desc->io_netif;
214 struct uboot_softc *sc;
215 struct device_info *di;
216 int err;
217
218 sc = nif->nif_devdata = &uboot_softc;
219
220 if ((err = ub_dev_open(sc->sc_handle)) != 0)
221 panic("%s%d: initialisation failed with error %d\n",
222 nif->nif_driver->netif_bname, nif->nif_unit, err);
223
224 /* Get MAC address */
225 di = ub_dev_get(sc->sc_handle);
226 memcpy(desc->myea, di->di_net.hwaddr, 6);
227 if (memcmp (desc->myea, "\0\0\0\0\0\0", 6) == 0) {
228 panic("%s%d: empty ethernet address!",
229 nif->nif_driver->netif_bname, nif->nif_unit);
230 }
231
232#if defined(NETIF_DEBUG)
233 printf("network: %s%d attached to %s\n", nif->nif_driver->netif_bname,
234 nif->nif_unit, ether_sprintf(desc->myea));
235#endif
236
237 /* Set correct alignment for TX packets */
238 sc->sc_txbufp = sc->sc_txbuf;
239 if ((unsigned long)sc->sc_txbufp % PKTALIGN)
240 sc->sc_txbufp += PKTALIGN -
241 (unsigned long)sc->sc_txbufp % PKTALIGN;
242}
243
244
245static void
246net_end(struct netif *nif)
247{
248 struct uboot_softc *sc = nif->nif_devdata;
249 int err;
250
251 if ((err = ub_dev_close(sc->sc_handle)) != 0)
252 panic("%s%d: net_end failed with error %d\n",
253 nif->nif_driver->netif_bname, nif->nif_unit, err);
254}
|