sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

flesh out the TCP/IP/Ethernet support

Browse source 
base/refcnt.hh:
    reorganize the RefCountingPtr a little bit to make it easier
    to derive from
dev/etherpkt.hh:
    this doesn't belong here. use the inet.hh stuff
dev/ns_gige.cc:
dev/ns_gige.hh:
    use newer features in the tcp/ip/ethernet stuff

--HG--
extra : convert_revision : 32c1953c95655c1f4c70e0d8adedfd94beead624
This commit is contained in:
Nathan Binkert 2004-10-23 16:18:44 -04:00
parent 833c5b5ef4
commit a7fd7729ab
6 changed files with 496 additions and 134 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

174
base/inet.cc
View file

@ -26,6 +26,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <cstdio>
#include <sstream>
#include <string>
@ -34,29 +35,174 @@
#include "base/inet.hh"
using namespace std;
namespace Net {
EthAddr::EthAddr()
{
memset(data, 0, ETH_ADDR_LEN);
}
EthAddr::EthAddr(const uint8_t ea[ETH_ADDR_LEN])
{
*data = *ea;
}
EthAddr::EthAddr(const eth_addr &ea)
{
*data = *ea.data;
}
EthAddr::EthAddr(const std::string &addr)
{
parse(addr);
}
const EthAddr &
EthAddr::operator=(const eth_addr &ea)
{
*data = *ea.data;
return *this;
}
const EthAddr &
EthAddr::operator=(const std::string &addr)
{
parse(addr);
return *this;
}
void
EthAddr::parse(const std::string &addr)
{
// the hack below is to make sure that ETH_ADDR_LEN is 6 otherwise
// the sscanf function won't work.
int bytes[ETH_ADDR_LEN == 6 ? ETH_ADDR_LEN : -1];
if (sscanf(addr.c_str(), "%x:%x:%x:%x:%x:%x", &bytes[0], &bytes[1],
&bytes[2], &bytes[3], &bytes[4], &bytes[5]) != ETH_ADDR_LEN) {
memset(data, 0xff, ETH_ADDR_LEN);
return;
}
for (int i = 0; i < ETH_ADDR_LEN; ++i) {
if (bytes[i] & ~0xff) {
memset(data, 0xff, ETH_ADDR_LEN);
return;
}
data[i] = bytes[i];
}
}
string
eaddr_string(const uint8_t a[6])
EthAddr::string() const
{
stringstream stream;
ccprintf(stream, "%x:%x:%x:%x:%x:%x", a[0], a[1], a[2], a[3], a[4], a[5]);
stream << *this;
return stream.str();
}
uint16_t
IpHdr::ip_cksum() const
bool
operator==(const EthAddr &left, const EthAddr &right)
{
int sum = ip_cksum_add(this, hlen(), 0);
sum = ip_cksum_carry(sum);
return sum;
return memcmp(left.bytes(), right.bytes(), ETH_ADDR_LEN);
}
ostream &
operator<<(ostream &stream, const EthAddr &ea)
{
const uint8_t *a = ea.addr();
ccprintf(stream, "%x:%x:%x:%x:%x:%x", a[0], a[1], a[2], a[3], a[4], a[5]);
return stream;
}
uint16_t
IpHdr::tu_cksum() const
cksum(const IpPtr &ptr)
{
int sum = ip_cksum_add(payload(), len() - hlen(), 0);
sum = ip_cksum_add(&ip_src, 8, sum); // source and destination
sum += htons(ip_p + len() - hlen());
sum = ip_cksum_carry(sum);
return sum;
int sum = ip_cksum_add(ptr->bytes(), ptr->hlen(), 0);
return ip_cksum_carry(sum);
}
uint16_t
__tu_cksum(const IpPtr &ip)
{
int tcplen = ip->len() - ip->hlen();
int sum = ip_cksum_add(ip->payload(), tcplen, 0);
sum = ip_cksum_add(&ip->ip_src, 8, sum); // source and destination
sum += htons(ip->ip_p + tcplen);
return ip_cksum_carry(sum);
}
uint16_t
cksum(const TcpPtr &tcp)
{ return __tu_cksum(IpPtr(tcp.packet())); }
uint16_t
cksum(const UdpPtr &udp)
{ return __tu_cksum(IpPtr(udp.packet())); }
bool
IpHdr::options(vector<const IpOpt *> &vec) const
{
vec.clear();
const uint8_t *data = bytes() + sizeof(struct ip_hdr);
int all = hlen() - sizeof(struct ip_hdr);
while (all > 0) {
const IpOpt *opt = (const IpOpt *)data;
int len = opt->len();
if (all < len)
return false;
vec.push_back(opt);
all -= len;
data += len;
}
return true;
}
bool
TcpHdr::options(vector<const TcpOpt *> &vec) const
{
vec.clear();
const uint8_t *data = bytes() + sizeof(struct tcp_hdr);
int all = off() - sizeof(struct tcp_hdr);
while (all > 0) {
const TcpOpt *opt = (const TcpOpt *)data;
int len = opt->len();
if (all < len)
return false;
vec.push_back(opt);
all -= len;
data += len;
}
return true;
}
bool
TcpOpt::sack(vector<SackRange> &vec) const
{
vec.clear();
const uint8_t *data = bytes() + sizeof(struct tcp_hdr);
int all = len() - offsetof(tcp_opt, opt_data.sack);
while (all > 0) {
const uint16_t *sack = (const uint16_t *)data;
int len = sizeof(uint16_t) * 2;
if (all < len) {
vec.clear();
return false;
}
vec.push_back(RangeIn(ntohs(sack[0]), ntohs(sack[1])));
all -= len;
data += len;
}
return false;
}
/* namespace Net */ }

311
base/inet.hh
View file

@ -29,10 +29,16 @@
#ifndef __BASE_INET_HH__
#define __BASE_INET_HH__
#include <iosfwd>
#include <string>
#include <utility>
#include <vector>
#include "base/range.hh"
#include "dev/etherpkt.hh"
#include "sim/host.hh"
#include "dnet/os.h"
#include "dnet/eth.h"
#include "dnet/ip.h"
#include "dnet/ip6.h"
@ -41,45 +47,90 @@
#include "dnet/icmp.h"
#include "dnet/tcp.h"
#include "dnet/udp.h"
#include "dnet/intf.h"
#include "dnet/route.h"
#include "dnet/fw.h"
#include "dnet/blob.h"
#include "dnet/rand.h"
#include "sim/host.hh"
namespace Net {
std::string eaddr_string(const uint8_t a[6]);
/*
* Ethernet Stuff
*/
struct EthAddr : protected eth_addr
{
protected:
void parse(const std::string &addr);
struct EthHdr;
struct IpHdr;
struct TcpHdr;
struct UdpHdr;
public:
EthAddr();
EthAddr(const uint8_t ea[ETH_ADDR_LEN]);
EthAddr(const eth_addr &ea);
EthAddr(const std::string &addr);
const EthAddr &operator=(const eth_addr &ea);
const EthAddr &operator=(const std::string &addr);
struct EthHdr : protected eth_hdr
int size() const { return sizeof(eth_addr); }
const uint8_t *bytes() const { return &data[0]; }
uint8_t *bytes() { return &data[0]; }
const uint8_t *addr() const { return &data[0]; }
bool unicast() const { return data[0] == 0x00; }
bool multicast() const { return data[0] == 0x01; }
bool broadcast() const { return data[0] == 0xff; }
std::string string() const;
};
std::ostream &operator<<(std::ostream &stream, const EthAddr &ea);
bool operator==(const EthAddr &left, const EthAddr &right);
struct EthHdr : public eth_hdr
{
uint16_t type() const { return ntohs(eth_type); }
const EthAddr &src() const { return *(EthAddr *)&eth_src; }
const EthAddr &dst() const { return *(EthAddr *)&eth_dst; }
const IpHdr *ip() const
{ return type() == ETH_TYPE_IP ? (const IpHdr *)payload() : 0; }
int size() const { return sizeof(eth_hdr); }
IpHdr *ip()
{ return type() == ETH_TYPE_IP ? (IpHdr *)payload() : 0; }
bool unicast() { return eth_dst.data[0] == 0x00; }
bool multicast() { return eth_dst.data[0] == 0x01; }
bool broadcast() { return eth_dst.data[0] == 0xff; }
int size() const { return sizeof(EthHdr); }
const uint8_t *bytes() const { return (const uint8_t *)this; }
const uint8_t *payload() const { return bytes() + size(); }
uint8_t *bytes() { return (uint8_t *)this; }
uint8_t *payload() { return bytes() + size(); }
};
struct IpHdr : protected ip_hdr
class EthPtr
{
protected:
friend class IpPtr;
PacketPtr p;
public:
EthPtr() {}
EthPtr(const PacketPtr &ptr) : p(ptr) { }
EthHdr *operator->() { return (EthHdr *)p->data; }
EthHdr &operator*() { return *(EthHdr *)p->data; }
operator EthHdr *() { return (EthHdr *)p->data; }
const EthHdr *operator->() const { return (const EthHdr *)p->data; }
const EthHdr &operator*() const { return *(const EthHdr *)p->data; }
operator const EthHdr *() const { return (const EthHdr *)p->data; }
const EthPtr &operator=(const PacketPtr &ptr) { p = ptr; return *this; }
const PacketPtr packet() const { return p; }
PacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
};
/*
* IP Stuff
*/
struct IpOpt;
struct IpHdr : public ip_hdr
{
uint8_t version() const { return ip_v; }
uint8_t hlen() const { return ip_hl * 4; }
@ -96,19 +147,7 @@ struct IpHdr : protected ip_hdr
void sum(uint16_t sum) { ip_sum = sum; }
uint16_t ip_cksum() const;
uint16_t tu_cksum() const;
const TcpHdr *tcp() const
{ return proto() == IP_PROTO_TCP ? (const TcpHdr *)payload() : 0; }
const UdpHdr *udp() const
{ return proto() == IP_PROTO_UDP ? (const UdpHdr *)payload() : 0; }
TcpHdr *tcp()
{ return proto() == IP_PROTO_TCP ? (TcpHdr *)payload() : 0; }
UdpHdr *udp()
{ return proto() == IP_PROTO_UDP ? (UdpHdr *)payload() : 0; }
bool options(std::vector<const IpOpt *> &vec) const;
int size() const { return hlen(); }
const uint8_t *bytes() const { return (const uint8_t *)this; }
@ -117,7 +156,84 @@ struct IpHdr : protected ip_hdr
uint8_t *payload() { return bytes() + size(); }
};
struct TcpHdr : protected tcp_hdr
class IpPtr
{
protected:
friend class TcpPtr;
friend class UdpPtr;
PacketPtr p;
const IpHdr *h() const
{ return (const IpHdr *)(p->data + sizeof(eth_hdr)); }
IpHdr *h() { return (IpHdr *)(p->data + sizeof(eth_hdr)); }
void set(const PacketPtr &ptr)
{
EthHdr *eth = (EthHdr *)ptr->data;
if (eth->type() == ETH_TYPE_IP)
p = ptr;
else
p = 0;
}
public:
IpPtr() {}
IpPtr(const PacketPtr &ptr) { set(ptr); }
IpPtr(const EthPtr &ptr) { set(ptr.p); }
IpPtr(const IpPtr &ptr) : p(ptr.p) { }
IpHdr *operator->() { return h(); }
IpHdr &operator*() { return *h(); }
operator IpHdr *() { return h(); }
const IpHdr *operator->() const { return h(); }
const IpHdr &operator*() const { return *h(); }
operator const IpHdr *() const { return h(); }
const IpPtr &operator=(const PacketPtr &ptr) { set(ptr); return *this; }
const IpPtr &operator=(const EthPtr &ptr) { set(ptr.p); return *this; }
const IpPtr &operator=(const IpPtr &ptr) { p = ptr.p; return *this; }
const PacketPtr packet() const { return p; }
PacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
operator bool() { return p; }
};
uint16_t cksum(const IpPtr &ptr);
struct IpOpt : public ip_opt
{
uint8_t type() const { return opt_type; }
uint8_t typeNumber() const { return IP_OPT_NUMBER(opt_type); }
uint8_t typeClass() const { return IP_OPT_CLASS(opt_type); }
uint8_t typeCopied() const { return IP_OPT_COPIED(opt_type); }
uint8_t len() const { return IP_OPT_TYPEONLY(type()) ? 1 : opt_len; }
bool isNumber(int num) const { return typeNumber() == IP_OPT_NUMBER(num); }
bool isClass(int cls) const { return typeClass() == IP_OPT_CLASS(cls); }
bool isCopied(int cpy) const { return typeCopied() == IP_OPT_COPIED(cpy); }
const uint8_t *data() const { return opt_data.data8; }
void sec(ip_opt_data_sec &sec) const;
void lsrr(ip_opt_data_rr &rr) const;
void ssrr(ip_opt_data_rr &rr) const;
void ts(ip_opt_data_ts &ts) const;
uint16_t satid() const { return ntohs(opt_data.satid); }
uint16_t mtup() const { return ntohs(opt_data.mtu); }
uint16_t mtur() const { return ntohs(opt_data.mtu); }
void tr(ip_opt_data_tr &tr) const;
const uint32_t *addext() const { return &opt_data.addext[0]; }
uint16_t rtralt() const { return ntohs(opt_data.rtralt); }
void sdb(std::vector<uint32_t> &vec) const;
};
/*
* TCP Stuff
*/
struct TcpOpt;
struct TcpHdr : public tcp_hdr
{
uint16_t sport() const { return ntohs(th_sport); }
uint16_t dport() const { return ntohs(th_dport); }
@ -131,6 +247,8 @@ struct TcpHdr : protected tcp_hdr
void sum(uint16_t sum) { th_sum = sum; }
bool options(std::vector<const TcpOpt *> &vec) const;
int size() const { return off(); }
const uint8_t *bytes() const { return (const uint8_t *)this; }
const uint8_t *payload() const { return bytes() + size(); }
@ -138,7 +256,81 @@ struct TcpHdr : protected tcp_hdr
uint8_t *payload() { return bytes() + size(); }
};
struct UdpHdr : protected udp_hdr
class TcpPtr
{
protected:
PacketPtr p;
int off;
const TcpHdr *h() const { return (const TcpHdr *)(p->data + off); }
TcpHdr *h() { return (TcpHdr *)(p->data + off); }
void set(const PacketPtr &ptr, int offset) { p = ptr; off = offset; }
void set(const IpPtr &ptr)
{
if (ptr->proto() == IP_PROTO_TCP)
set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
else
set(0, 0);
}
public:
TcpPtr() {}
TcpPtr(const IpPtr &ptr) { set(ptr); }
TcpPtr(const TcpPtr &ptr) : p(ptr.p), off(ptr.off) {}
TcpHdr *operator->() { return h(); }
TcpHdr &operator*() { return *h(); }
operator TcpHdr *() { return h(); }
const TcpHdr *operator->() const { return h(); }
const TcpHdr &operator*() const { return *h(); }
operator const TcpHdr *() const { return h(); }
const TcpPtr &operator=(const IpPtr &i) { set(i); return *this; }
const TcpPtr &operator=(const TcpPtr &t) { set(t.p, t.off); return *this; }
const PacketPtr packet() const { return p; }
PacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
operator bool() { return p; }
};
uint16_t cksum(const TcpPtr &ptr);
typedef Range<uint16_t> SackRange;
struct TcpOpt : public tcp_opt
{
uint8_t type() const { return opt_type; }
uint8_t len() const { return TCP_OPT_TYPEONLY(type()) ? 1 : opt_len; }
bool isopt(int opt) const { return type() == opt; }
const uint8_t *data() const { return opt_data.data8; }
uint16_t mss() const { return ntohs(opt_data.mss); }
uint8_t wscale() const { return opt_data.wscale; }
bool sack(std::vector<SackRange> &vec) const;
uint32_t echo() const { return ntohl(opt_data.echo); }
uint32_t tsval() const { return ntohl(opt_data.timestamp[0]); }
uint32_t tsecr() const { return ntohl(opt_data.timestamp[1]); }
uint32_t cc() const { return ntohl(opt_data.cc); }
uint8_t cksum() const{ return opt_data.cksum; }
const uint8_t *md5() const { return opt_data.md5; }
int size() const { return len(); }
const uint8_t *bytes() const { return (const uint8_t *)this; }
const uint8_t *payload() const { return bytes() + size(); }
uint8_t *bytes() { return (uint8_t *)this; }
uint8_t *payload() { return bytes() + size(); }
};
/*
* UDP Stuff
*/
struct UdpHdr : public udp_hdr
{
uint16_t sport() const { return ntohs(uh_sport); }
uint16_t dport() const { return ntohs(uh_dport); }
@ -147,11 +339,56 @@ struct UdpHdr : protected udp_hdr
void sum(uint16_t sum) { uh_sum = htons(sum); }
int size() const { return sizeof(UdpHdr); }
int size() const { return sizeof(udp_hdr); }
const uint8_t *bytes() const { return (const uint8_t *)this; }
const uint8_t *payload() const { return bytes() + size(); }
uint8_t *bytes() { return (uint8_t *)this; }
uint8_t *payload() { return bytes() + size(); }
};
class UdpPtr
{
protected:
PacketPtr p;
int off;
const UdpHdr *h() const { return (const UdpHdr *)(p->data + off); }
UdpHdr *h() { return (UdpHdr *)(p->data + off); }
void set(const PacketPtr &ptr, int offset) { p = ptr; off = offset; }
void set(const IpPtr &ptr)
{
if (ptr->proto() == IP_PROTO_UDP)
set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
else
set(0, 0);
}
public:
UdpPtr() {}
UdpPtr(const IpPtr &ptr) { set(ptr); }
UdpPtr(const UdpPtr &ptr) : p(ptr.p), off(ptr.off) {}
UdpHdr *operator->() { return h(); }
UdpHdr &operator*() { return *h(); }
operator UdpHdr *() { return h(); }
const UdpHdr *operator->() const { return h(); }
const UdpHdr &operator*() const { return *h(); }
operator const UdpHdr *() const { return h(); }
const UdpPtr &operator=(const IpPtr &i) { set(i); return *this; }
const UdpPtr &operator=(const UdpPtr &t) { set(t.p, t.off); return *this; }
const PacketPtr packet() const { return p; }
PacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
operator bool() { return p; }
};
uint16_t cksum(const UdpPtr &ptr);
/* namespace Net */ }
#endif // __BASE_INET_HH__

33
base/refcnt.hh
View file

@ -51,15 +51,26 @@ class RefCountingPtr
protected:
T *data;
void copy(T *d) {
void copy(T *d)
{
data = d;
if (data)
data->incref();
}
void del() {
void del()
{
if (data)
data->decref();
}
void set(T *d)
{
if (data == d)
return;
del();
copy(d);
}
public:
RefCountingPtr() : data(NULL) {}
@ -75,21 +86,9 @@ class RefCountingPtr
const T &operator*() const { return *data; }
const T *get() const { return data; }
RefCountingPtr &operator=(T *p) {
if (data != p) {
del();
copy(p);
}
return *this;
}
RefCountingPtr &operator=(const RefCountingPtr &r) {
if (data != r.data) {
del();
copy(r.data);
}
return *this;
}
RefCountingPtr &operator=(T *p) { set(p); return *this; }
RefCountingPtr &operator=(const RefCountingPtr &r)
{ return operator=(r.data); }
bool operator!() const { return data == 0; }
operator bool() const { return data != 0; }

12
dev/etherpkt.hh
View file

@ -38,7 +38,6 @@
#include <assert.h>
#include "base/refcnt.hh"
#include "base/inet.hh"
#include "sim/host.hh"
/*
@ -57,17 +56,6 @@ class PacketData : public RefCounted
: data(d.release()), length(l) { }
~PacketData() { if (data) delete [] data; }
public:
const EthHdr *eth() const { return (const EthHdr *)data; }
const IpHdr *ip() const {const EthHdr *h = eth(); return h ? h->ip() : 0;}
const TcpHdr *tcp() const {const IpHdr *h = ip(); return h ? h->tcp() : 0;}
const UdpHdr *udp() const {const IpHdr *h = ip(); return h ? h->udp() : 0;}
EthHdr *eth() { return (EthHdr *)data; }
IpHdr *ip() { EthHdr *h = eth(); return h ? h->ip() : 0; }
TcpHdr *tcp() { IpHdr *h = ip(); return h ? h->tcp() : 0; }
UdpHdr *udp() { IpHdr *h = ip(); return h ? h->udp() : 0; }
public:
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string &section);

82
dev/ns_gige.cc
View file

@ -86,7 +86,7 @@ const char *NsDmaState[] =
};
using namespace std;
using namespace Net;
///////////////////////////////////////////////////////////////////////
//
@ -99,7 +99,7 @@ NSGigE::NSGigE(const std::string &name, IntrControl *i, Tick intr_delay,
bool dma_data_free, Tick dma_read_delay, Tick dma_write_delay,
Tick dma_read_factor, Tick dma_write_factor, PciConfigAll *cf,
PciConfigData *cd, Tsunami *t, uint32_t bus, uint32_t dev,
uint32_t func, bool rx_filter, const int eaddr[6],
uint32_t func, bool rx_filter, EthAddr eaddr,
uint32_t tx_fifo_size, uint32_t rx_fifo_size)
: PciDev(name, mmu, cf, cd, bus, dev, func), tsunami(t), ioEnable(false),
maxTxFifoSize(tx_fifo_size), maxRxFifoSize(rx_fifo_size),
@ -149,12 +149,7 @@ NSGigE::NSGigE(const std::string &name, IntrControl *i, Tick intr_delay,
dmaWriteFactor = dma_write_factor;
regsReset();
rom.perfectMatch[0] = eaddr[0];
rom.perfectMatch[1] = eaddr[1];
rom.perfectMatch[2] = eaddr[2];
rom.perfectMatch[3] = eaddr[3];
rom.perfectMatch[4] = eaddr[4];
rom.perfectMatch[5] = eaddr[5];
memcpy(&rom.perfectMatch, eaddr.bytes(), ETH_ADDR_LEN);
}
NSGigE::~NSGigE()
@ -1337,10 +1332,10 @@ NSGigE::rxKick()
#if TRACING_ON
if (DTRACE(Ethernet)) {
const IpHdr *ip = rxPacket->ip();
IpPtr ip(rxPacket);
if (ip) {
DPRINTF(Ethernet, "ID is %d\n", ip->id());
const TcpHdr *tcp = rxPacket->tcp();
TcpPtr tcp(ip);
if (tcp) {
DPRINTF(Ethernet, "Src Port=%d, Dest Port=%d\n",
tcp->sport(), tcp->dport());
@ -1399,36 +1394,38 @@ NSGigE::rxKick()
*/
if (rxFilterEnable) {
rxDescCache.cmdsts &= ~CMDSTS_DEST_MASK;
EthHdr *eth = rxFifoFront()->eth();
if (eth->unicast())
const EthAddr &dst = rxFifoFront()->dst();
if (dst->unicast())
rxDescCache.cmdsts |= CMDSTS_DEST_SELF;
if (eth->multicast())
if (dst->multicast())
rxDescCache.cmdsts |= CMDSTS_DEST_MULTI;
if (eth->broadcast())
if (dst->broadcast())
rxDescCache.cmdsts |= CMDSTS_DEST_MASK;
}
#endif
if (extstsEnable && rxPacket->ip()) {
IpPtr ip(rxPacket);
if (extstsEnable && ip) {
rxDescCache.extsts |= EXTSTS_IPPKT;
rxIpChecksums++;
IpHdr *ip = rxPacket->ip();
if (ip->ip_cksum() != 0) {
if (cksum(ip) != 0) {
DPRINTF(EthernetCksum, "Rx IP Checksum Error\n");
rxDescCache.extsts |= EXTSTS_IPERR;
}
if (rxPacket->tcp()) {
TcpPtr tcp(ip);
UdpPtr udp(ip);
if (tcp) {
rxDescCache.extsts |= EXTSTS_TCPPKT;
rxTcpChecksums++;
if (ip->tu_cksum() != 0) {
if (cksum(tcp) != 0) {
DPRINTF(EthernetCksum, "Rx TCP Checksum Error\n");
rxDescCache.extsts |= EXTSTS_TCPERR;
}
} else if (rxPacket->udp()) {
} else if (udp) {
rxDescCache.extsts |= EXTSTS_UDPPKT;
rxUdpChecksums++;
if (ip->tu_cksum() != 0) {
if (cksum(udp) != 0) {
DPRINTF(EthernetCksum, "Rx UDP Checksum Error\n");
rxDescCache.extsts |= EXTSTS_UDPERR;
}
@ -1546,10 +1543,10 @@ NSGigE::transmit()
if (interface->sendPacket(txFifo.front())) {
#if TRACING_ON
if (DTRACE(Ethernet)) {
const IpHdr *ip = txFifo.front()->ip();
IpPtr ip(txFifo.front());
if (ip) {
DPRINTF(Ethernet, "ID is %d\n", ip->id());
const TcpHdr *tcp = txFifo.front()->tcp();
TcpPtr tcp(ip);
if (tcp) {
DPRINTF(Ethernet, "Src Port=%d, Dest Port=%d\n",
tcp->sport(), tcp->dport());
@ -1812,21 +1809,21 @@ NSGigE::txKick()
DPRINTF(EthernetSM, "This packet is done, let's wrap it up\n");
/* deal with the the packet that just finished */
if ((regs.vtcr & VTCR_PPCHK) && extstsEnable) {
IpHdr *ip = txPacket->ip();
IpPtr ip(txPacket);
if (txDescCache.extsts & EXTSTS_UDPPKT) {
UdpHdr *udp = txPacket->udp();
UdpPtr udp(ip);
udp->sum(0);
udp->sum(ip->tu_cksum());
udp->sum(cksum(udp));
txUdpChecksums++;
} else if (txDescCache.extsts & EXTSTS_TCPPKT) {
TcpHdr *tcp = txPacket->tcp();
TcpPtr tcp(ip);
tcp->sum(0);
tcp->sum(ip->tu_cksum());
tcp->sum(cksum(tcp));
txTcpChecksums++;
}
if (txDescCache.extsts & EXTSTS_IPPKT) {
ip->sum(0);
ip->sum(ip->ip_cksum());
ip->sum(cksum(ip));
txIpChecksums++;
}
}
@ -1985,31 +1982,31 @@ NSGigE::transferDone()
}
bool
NSGigE::rxFilter(PacketPtr packet)
NSGigE::rxFilter(PacketPtr &packet)
{
EthPtr eth = packet;
bool drop = true;
string type;
EthHdr *eth = packet->eth();
if (eth->unicast()) {
const EthAddr &dst = eth->dst();
if (dst.unicast()) {
// If we're accepting all unicast addresses
if (acceptUnicast)
drop = false;
// If we make a perfect match
if (acceptPerfect &&
memcmp(rom.perfectMatch, packet->data, EADDR_LEN) == 0)
if (acceptPerfect && dst == rom.perfectMatch)
drop = false;
if (acceptArp && eth->type() == ETH_TYPE_ARP)
drop = false;
} else if (eth->broadcast()) {
} else if (dst.broadcast()) {
// if we're accepting broadcasts
if (acceptBroadcast)
drop = false;
} else if (eth->multicast()) {
} else if (dst.multicast()) {
// if we're accepting all multicasts
if (acceptMulticast)
drop = false;
@ -2025,7 +2022,7 @@ NSGigE::rxFilter(PacketPtr packet)
}
bool
NSGigE::recvPacket(PacketPtr packet)
NSGigE::recvPacket(PacketPtr &packet)
{
rxBytes += packet->length;
rxPackets++;
@ -2118,7 +2115,7 @@ NSGigE::serialize(ostream &os)
SERIALIZE_SCALAR(regs.taner);
SERIALIZE_SCALAR(regs.tesr);
SERIALIZE_ARRAY(rom.perfectMatch, EADDR_LEN);
SERIALIZE_ARRAY(rom.perfectMatch, ETH_ADDR_LEN);
SERIALIZE_SCALAR(ioEnable);
@ -2275,7 +2272,7 @@ NSGigE::unserialize(Checkpoint *cp, const std::string &section)
UNSERIALIZE_SCALAR(regs.taner);
UNSERIALIZE_SCALAR(regs.tesr);
UNSERIALIZE_ARRAY(rom.perfectMatch, EADDR_LEN);
UNSERIALIZE_ARRAY(rom.perfectMatch, ETH_ADDR_LEN);
UNSERIALIZE_SCALAR(ioEnable);
@ -2515,16 +2512,13 @@ END_INIT_SIM_OBJECT_PARAMS(NSGigE)
CREATE_SIM_OBJECT(NSGigE)
{
int eaddr[6];
sscanf(((string)hardware_address).c_str(), "%x:%x:%x:%x:%x:%x",
&eaddr[0], &eaddr[1], &eaddr[2], &eaddr[3], &eaddr[4], &eaddr[5]);
return new NSGigE(getInstanceName(), intr_ctrl, intr_delay,
physmem, tx_delay, rx_delay, mmu, hier, header_bus,
payload_bus, pio_latency, dma_desc_free, dma_data_free,
dma_read_delay, dma_write_delay, dma_read_factor,
dma_write_factor, configspace, configdata,
tsunami, pci_bus, pci_dev, pci_func, rx_filter, eaddr,
tsunami, pci_bus, pci_dev, pci_func, rx_filter,
EthAddr((string)hardware_address),
tx_fifo_size, rx_fifo_size);
}

18
dev/ns_gige.hh
View file

@ -31,9 +31,10 @@
* DP83820 ethernet controller
*/
#ifndef __NS_GIGE_HH__
#define __NS_GIGE_HH__
#ifndef __DEV_NS_GIGE_HH__
#define __DEV_NS_GIGE_HH__
#include "base/inet.hh"
#include "base/statistics.hh"
#include "dev/etherint.hh"
#include "dev/etherpkt.hh"
@ -44,9 +45,6 @@
#include "mem/bus/bus.hh"
#include "sim/eventq.hh"
/** length of ethernet address in bytes */
#define EADDR_LEN 6
/**
* Ethernet device registers
*/
@ -90,7 +88,7 @@ struct dp_rom {
* for perfect match memory.
* the linux driver doesn't use any other ROM
*/
uint8_t perfectMatch[EADDR_LEN];
uint8_t perfectMatch[ETH_ADDR_LEN];
};
class IntrControl;
@ -302,7 +300,7 @@ class NSGigE : public PciDev
* receive address filter
*/
bool rxFilterEnable;
bool rxFilter(PacketPtr packet);
bool rxFilter(PacketPtr &packet);
bool acceptBroadcast;
bool acceptMulticast;
bool acceptUnicast;
@ -339,7 +337,7 @@ class NSGigE : public PciDev
bool dma_data_free, Tick dma_read_delay, Tick dma_write_delay,
Tick dma_read_factor, Tick dma_write_factor, PciConfigAll *cf,
PciConfigData *cd, Tsunami *t, uint32_t bus, uint32_t dev,
uint32_t func, bool rx_filter, const int eaddr[6],
uint32_t func, bool rx_filter, Net::EthAddr eaddr,
uint32_t tx_fifo_size, uint32_t rx_fifo_size);
~NSGigE();
@ -352,7 +350,7 @@ class NSGigE : public PciDev
bool cpuIntrPending() const;
void cpuIntrAck() { cpuIntrClear(); }
bool recvPacket(PacketPtr packet);
bool recvPacket(PacketPtr &packet);
void transferDone();
void setInterface(NSGigEInt *i) { assert(!interface); interface = i; }
@ -403,4 +401,4 @@ class NSGigEInt : public EtherInt
virtual void sendDone() { dev->transferDone(); }
};
#endif // __NS_GIGE_HH__
#endif // __DEV_NS_GIGE_HH__