/* $NetBSD: efinet.c,v 1.8 2018/08/18 15:55:19 kre Exp $ */
/*-
* Copyright (c) 2001 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
/* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/efinet.c,v 1.6 2004/01/04 23:28:16 obrien Exp $"); */
#include <sys/param.h>
#include <lib/libsa/stand.h>
#include <lib/libsa/loadfile.h>
#include <lib/libsa/net.h>
#include <lib/libsa/netif.h>
#ifdef EFINET_DEBUG
#include <lib/libsa/ether_sprintf.c>
#endif
#include <efi.h>
#include <efilib.h>
extern struct netif_driver efi_net;
int efinet_match(struct netif *, void *);
int efinet_probe(struct netif *, void *);
void efinet_init(struct iodesc *, void *);
int efinet_get(struct iodesc *, void *, size_t, saseconds_t);
int efinet_put(struct iodesc *, void *, size_t);
void efinet_end(struct netif *);
struct netif_driver efi_net = {
"net", /* netif_bname */
efinet_match, /* netif_match */
efinet_probe, /* netif_probe */
efinet_init, /* netif_init */
efinet_get, /* netif_get */
efinet_put, /* netif_put */
efinet_end, /* netif_end */
0, /* netif_ifs */
0 /* netif_nifs */
};
#ifdef EFINET_DEBUG
static void
dump_mode(EFI_SIMPLE_NETWORK_MODE *mode)
{
int i;
printf("State = %x\n", mode->State);
printf("HwAddressSize = %u\n", mode->HwAddressSize);
printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize);
printf("MaxPacketSize = %u\n", mode->MaxPacketSize);
printf("NvRamSize = %u\n", mode->NvRamSize);
printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize);
printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask);
printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting);
printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount);
printf("MCastFilterCount = %u\n", mode->MCastFilterCount);
printf("MCastFilter = {");
for (i = 0; i < mode->MCastFilterCount; i++)
printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr));
printf(" }\n");
printf("CurrentAddress = %s\n",
ether_sprintf(mode->CurrentAddress.Addr));
printf("BroadcastAddress = %s\n",
ether_sprintf(mode->BroadcastAddress.Addr));
printf("PermanentAddress = %s\n",
ether_sprintf(mode->PermanentAddress.Addr));
printf("IfType = %u\n", mode->IfType);
printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable);
printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported);
printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported);
printf("MediaPresent = %d\n", mode->MediaPresent);
}
#endif
int
efinet_match(struct netif *nif, void *machdep_hint)
{
return (1);
}
int
efinet_probe(struct netif *nif, void *machdep_hint)
{
return (0);
}
int
efinet_put(struct iodesc *desc, void *pkt, size_t len)
{
struct netif *nif = desc->io_netif;
EFI_SIMPLE_NETWORK *net;
EFI_STATUS status;
void *buf;
net = nif->nif_devdata;
status = net->Transmit(net, 0, len, pkt, 0, 0, 0);
if (status != EFI_SUCCESS)
return -1;
/* Wait for the buffer to be transmitted */
do {
buf = 0; /* XXX Is this needed? */
status = net->GetStatus(net, 0, &buf);
/*
* XXX EFI1.1 and the E1000 card returns a different
* address than we gave. Sigh.
*/
} while (status == EFI_SUCCESS && buf == 0);
/* XXX How do we deal with status != EFI_SUCCESS now? */
return (status == EFI_SUCCESS) ? len : -1;
}
int
efinet_get(struct iodesc *desc, void *pkt, size_t len, saseconds_t timeout)
{
struct netif *nif = desc->io_netif;
EFI_SIMPLE_NETWORK *net;
EFI_STATUS status;
UINTN bufsz;
time_t t;
char buf[2048];
net = nif->nif_devdata;
t = time(0);
while ((time(0) - t) < timeout) {
bufsz = sizeof(buf);
status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0);
if (status == EFI_SUCCESS) {
/*
* XXX EFI1.1 and the E1000 card trash our
* workspace if we do not do this silly copy.
* Either they are not respecting the len
* value or do not like the alignment.
*/
if (bufsz > len)
bufsz = len;
memcpy(pkt, buf, bufsz);
return bufsz;
}
if (status != EFI_NOT_READY)
return 0;
}
return 0;
}
void
efinet_init(struct iodesc *desc, void *machdep_hint)
{
struct netif *nif = desc->io_netif;
EFI_SIMPLE_NETWORK *net;
EFI_STATUS status;
net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private;
nif->nif_devdata = net;
if (net->Mode->State == EfiSimpleNetworkStopped) {
status = net->Start(net);
if (status != EFI_SUCCESS) {
printf("net%d: cannot start interface (status=%ld)\n",
nif->nif_unit, status);
return;
}
}
if (net->Mode->State != EfiSimpleNetworkInitialized) {
status = net->Initialize(net, 0, 0);
if (status != EFI_SUCCESS) {
printf("net%d: cannot init. interface (status=%ld)\n",
nif->nif_unit, status);
return;
}
}
if (net->Mode->ReceiveFilterSetting == 0) {
UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |
EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0);
if (status != EFI_SUCCESS) {
printf("net%d: cannot set rx. filters (status=%ld)\n",
nif->nif_unit, status);
return;
}
}
#ifdef EFINET_DEBUG
dump_mode(net->Mode);
#endif
memcpy(desc->myea, net->Mode->CurrentAddress.Addr, 6);
desc->xid = 1;
return;
}
void
efinet_init_driver(void)
{
EFI_STATUS status;
UINTN sz;
static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID;
EFI_HANDLE *handles;
int nifs, i;
#define MAX_INTERFACES 4
static struct netif_dif difs[MAX_INTERFACES];
static struct netif_stats stats[MAX_INTERFACES];
sz = 0;
status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0);
if (status != EFI_BUFFER_TOO_SMALL)
return;
handles = (EFI_HANDLE *) alloc(sz);
status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles);
if (EFI_ERROR(status)) {
free(handles);
return;
}
nifs = sz / sizeof(EFI_HANDLE);
if (nifs > MAX_INTERFACES)
nifs = MAX_INTERFACES;
efi_net.netif_nifs = nifs;
efi_net.netif_ifs = difs;
memset(stats, 0, sizeof(stats));
for (i = 0; i < nifs; i++) {
struct netif_dif *dif = &efi_net.netif_ifs[i];
dif->dif_unit = i;
dif->dif_nsel = 1;
dif->dif_stats = &stats[i];
BS->HandleProtocol(handles[i], &netid,
(VOID**) &dif->dif_private);
}
return;
}
void
efinet_end(struct netif *nif)
{
EFI_SIMPLE_NETWORK *net = nif->nif_devdata;
net->Shutdown(net);
}