7572ed5a08
This was introduced as a workaround long time ago for some Alpha firmware
(which is now gone), and actually prevented net_close() to ever be
called.
Certain firmwares (U-Boot) need local shutdown operations to be performed on a
network controller upon transaction end: such platform-specific hooks are
supposed to be called via netif_close() (from within net_close()).
This change effectively reverts the following CVS commit:
sys/boot/common/dev_net.c
revision 1.7
date: 2000/05/13 15:40:46; author: dfr; state: Exp; lines: +2 -1
Only probe network settings on the first open of the network device.
The alpha firmware takes a seriously long time to open the network device
the first time.
Also suppress excessive output while netbooting via loader, unless debugging.
While there, make sys/boot/uboot more style(9) compliant.
Reviewed by: imp
Approved by: cognet (mentor)
251 lines
6.3 KiB
C
251 lines
6.3 KiB
C
/*-
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* Copyright (c) 2000-2001 Benno Rice
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* Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <stand.h>
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#include <net.h>
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#include <netif.h>
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#include "api_public.h"
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#include "libuboot.h"
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#define NETIF_DEBUG
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#define NETIF_VERBOSE_DEBUG
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#undef NETIF_DEBUG
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#undef NETIF_VERBOSE_DEBUG
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static int net_probe(struct netif *, void *);
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static int net_match(struct netif *, void *);
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static void net_init(struct iodesc *, void *);
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static int net_get(struct iodesc *, void *, size_t, time_t);
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static int net_put(struct iodesc *, void *, size_t);
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static void net_end(struct netif *);
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struct device_info * ub_dev_get(int i);
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extern int devs_no;
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extern struct netif_stats net_stats[];
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struct netif_dif net_ifs[] = {
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/* dif_unit dif_nsel dif_stats dif_private */
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{ 0, 1, &net_stats[0], 0, },
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};
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struct netif_stats net_stats[NENTS(net_ifs)];
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struct netif_driver uboot_net = {
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"uboot_eth", /* netif_bname */
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net_match, /* netif_match */
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net_probe, /* netif_probe */
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net_init, /* netif_init */
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net_get, /* netif_get */
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net_put, /* netif_put */
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net_end, /* netif_end */
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net_ifs, /* netif_ifs */
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NENTS(net_ifs) /* netif_nifs */
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};
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struct uboot_softc {
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u_int32_t sc_pad;
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u_int8_t sc_rxbuf[ETHER_MAX_LEN];
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u_int8_t sc_txbuf[ETHER_MAX_LEN + PKTALIGN];
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u_int8_t *sc_txbufp;
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int sc_handle; /* device handle for ub_dev_xxx */
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};
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static struct uboot_softc uboot_softc;
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static int
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net_match(struct netif *nif, void *machdep_hint)
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{
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char **a = (char **)machdep_hint;
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if (memcmp("net", *a, 3) == 0)
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return (1);
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printf("net_match: could not match network device\n");
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return (0);
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}
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static int
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net_probe(struct netif *nif, void *machdep_hint)
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{
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int i;
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struct device_info *di;
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for (i = 0; i < devs_no; i++)
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if (di = ub_dev_get(i))
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if (di->type == DEV_TYP_NET)
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break;
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if (i == devs_no) {
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printf("net_probe: no network devices found, maybe not\
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enumerated yet..?\n");
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return (-1);
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}
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#if defined(NETIF_DEBUG)
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printf("net_probe: network device found: %d\n", i);
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#endif
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uboot_softc.sc_handle = i;
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return (0);
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}
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static int
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net_put(struct iodesc *desc, void *pkt, size_t len)
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{
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struct netif *nif = desc->io_netif;
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struct uboot_softc *sc = nif->nif_devdata;
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struct ether_header *eh;
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size_t sendlen;
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ssize_t rv;
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#if defined(NETIF_DEBUG)
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printf("net_put: desc 0x%x, pkt 0x%x, len %d\n", desc, pkt, len);
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eh = pkt;
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printf("dst: %s ", ether_sprintf(eh->ether_dhost));
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printf("src: %s ", ether_sprintf(eh->ether_shost));
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printf("type: 0x%x\n", eh->ether_type & 0xffff);
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#endif
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if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) {
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sendlen = ETHER_MIN_LEN - ETHER_CRC_LEN;
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bzero(sc->sc_txbufp, sendlen);
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} else
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sendlen = len;
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memcpy(sc->sc_txbufp, pkt, len);
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rv = ub_dev_send(sc->sc_handle, sc->sc_txbufp, sendlen);
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#if defined(NETIF_DEBUG)
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printf("net_put: ub_send returned %d\n", rv);
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#endif
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if (rv == 0)
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rv = len;
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else
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rv = -1;
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return (rv);
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}
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static int
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net_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
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{
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struct netif *nif = desc->io_netif;
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struct uboot_softc *sc = nif->nif_devdata;
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time_t t;
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int length;
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#if defined(NETIF_DEBUG)
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printf("net_get: pkt %x, len %d, timeout %d\n", pkt, len, timeout);
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#endif
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t = getsecs();
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do {
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length = ub_dev_recv(sc->sc_handle, sc->sc_rxbuf, len);
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} while ((length == -1 || length == 0) &&
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(getsecs() - t < timeout));
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#if defined(NETIF_DEBUG)
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printf("net_get: received len %d (%x)\n", length, length);
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#endif
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if (length > 0) {
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memcpy(pkt, sc->sc_rxbuf, MIN(len, length));
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if (length != len) {
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#if defined(NETIF_DEBUG)
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printf("net_get: len %x, length %x\n", len, length);
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#endif
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}
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return (length);
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}
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return (-1);
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}
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static void
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net_init(struct iodesc *desc, void *machdep_hint)
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{
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int i, err;
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struct netif *nif = desc->io_netif;
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struct uboot_softc *sc;
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struct device_info *di;
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sc = nif->nif_devdata = &uboot_softc;
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if (err = ub_dev_open(sc->sc_handle))
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panic("%s%d: initialisation failed with error %d\n",
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nif->nif_driver->netif_bname, nif->nif_unit, err);
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/* Get MAC address */
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di = ub_dev_get(sc->sc_handle);
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memcpy(desc->myea, di->di_net.hwaddr, 6);
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if (memcmp (desc->myea, "\0\0\0\0\0\0", 6) == 0) {
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panic("%s%d: empty ethernet address!",
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nif->nif_driver->netif_bname, nif->nif_unit);
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}
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#if defined(NETIF_DEBUG)
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printf("network: %s%d attached to %s\n", nif->nif_driver->netif_bname,
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nif->nif_unit, ether_sprintf(desc->myea));
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#endif
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/* Set correct alignment for TX packets */
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sc->sc_txbufp = sc->sc_txbuf;
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if ((unsigned long)sc->sc_txbufp % PKTALIGN)
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sc->sc_txbufp += PKTALIGN - (unsigned long)sc->sc_txbufp % PKTALIGN;
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}
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static void
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net_end(struct netif *nif)
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{
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int err;
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struct uboot_softc *sc = nif->nif_devdata;
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if (err = ub_dev_close(sc->sc_handle))
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panic("%s%d: net_end failed with error %d\n",
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nif->nif_driver->netif_bname, nif->nif_unit, err);
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}
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