/* @file
* Device model for Intel's 8254x line of gigabit ethernet controllers.
+ * In particular an 82547 revision 2 (82547GI) MAC because it seems to have the
+ * fewest workarounds in the driver. It will probably work with most of the
+ * other MACs with slight modifications.
*/
#include "base/inet.hh"
#include "sim/stats.hh"
#include "sim/system.hh"
+using namespace iGbReg;
+
IGbE::IGbE(Params *p)
: PciDev(p), etherInt(NULL)
{
-
+ // Initialized internal registers per Intel documentation
+ regs.tctl.reg = 0;
+ regs.rctl.reg = 0;
+ regs.ctrl.reg = 0;
+ regs.ctrl.fd = 1;
+ regs.ctrl.lrst = 1;
+ regs.ctrl.speed = 2;
+ regs.ctrl.frcspd = 1;
+ regs.sts.reg = 0;
+ regs.eecd.reg = 0;
+ regs.eecd.fwe = 1;
+ regs.eecd.ee_type = 1;
+ regs.eerd.reg = 0;
+ regs.icd.reg = 0;
+ regs.imc.reg = 0;
+ regs.rctl.reg = 0;
+ regs.tctl.reg = 0;
+ regs.manc.reg = 0;
+
+ eeOpBits = 0;
+ eeAddrBits = 0;
+ eeDataBits = 0;
+ eeOpcode = 0;
+
+ memset(&flash, 0, EEPROM_SIZE);
+ // Magic happy checksum value
+ flash[0] = 0xBABA;
}
// Only Memory register BAR is allowed
assert(bar == 0);
- DPRINTF(Ethernet, "Accessed devie register %#X\n", daddr);
+ // Only 32bit accesses allowed
+ assert(pkt->getSize() == 4);
- pkt->allocate();
+ DPRINTF(Ethernet, "Read device register %#X\n", daddr);
+ pkt->allocate();
///
/// Handle read of register here
///
+ switch (daddr) {
+ case CTRL:
+ pkt->set<uint32_t>(regs.ctrl.reg);
+ break;
+ case STATUS:
+ pkt->set<uint32_t>(regs.sts.reg);
+ break;
+ case EECD:
+ pkt->set<uint32_t>(regs.eecd.reg);
+ break;
+ case EERD:
+ pkt->set<uint32_t>(regs.eerd.reg);
+ break;
+ case ICR:
+ pkt->set<uint32_t>(regs.icd.reg);
+ break;
+ case IMC:
+ pkt->set<uint32_t>(regs.imc.reg);
+ break;
+ case RCTL:
+ pkt->set<uint32_t>(regs.rctl.reg);
+ break;
+ case TCTL:
+ pkt->set<uint32_t>(regs.tctl.reg);
+ break;
+ case MANC:
+ pkt->set<uint32_t>(regs.manc.reg);
+ break;
+ default:
+ panic("Read request to unknown register number: %#x\n", daddr);
+ };
+
pkt->result = Packet::Success;
return pioDelay;
}
int bar;
Addr daddr;
+
if (!getBAR(pkt->getAddr(), bar, daddr))
panic("Invalid PCI memory access to unmapped memory.\n");
// Only Memory register BAR is allowed
assert(bar == 0);
- DPRINTF(Ethernet, "Accessed devie register %#X\n", daddr);
+ // Only 32bit accesses allowed
+ assert(pkt->getSize() == sizeof(uint32_t));
+
+ DPRINTF(Ethernet, "Wrote device register %#X value %#X\n", daddr, pkt->get<uint32_t>());
///
/// Handle write of register here
///
+ uint32_t val = pkt->get<uint32_t>();
+
+ switch (daddr) {
+ case CTRL:
+ regs.ctrl.reg = val;
+ break;
+ case STATUS:
+ regs.sts.reg = val;
+ break;
+ case EECD:
+ int oldClk;
+ oldClk = regs.eecd.sk;
+ regs.eecd.reg = val;
+ // See if this is a eeprom access and emulate accordingly
+ if (!oldClk && regs.eecd.sk) {
+ if (eeOpBits < 8) {
+ eeOpcode = eeOpcode << 1 | regs.eecd.din;
+ eeOpBits++;
+ } else if (eeAddrBits < 8 && eeOpcode == EEPROM_READ_OPCODE_SPI) {
+ eeAddr = eeAddr << 1 | regs.eecd.din;
+ eeAddrBits++;
+ } else if (eeDataBits < 16 && eeOpcode == EEPROM_READ_OPCODE_SPI) {
+ assert(eeAddr < EEPROM_SIZE);
+ DPRINTF(Ethernet, "EEPROM bit read: %d word: %#X\n",
+ flash[eeAddr] >> eeDataBits & 0x1, flash[eeAddr]);
+ regs.eecd.dout = (flash[eeAddr] >> eeDataBits) & 0x1;
+ eeDataBits++;
+ } else if (eeDataBits < 8 && eeOpcode == EEPROM_RDSR_OPCODE_SPI) {
+ regs.eecd.dout = 0;
+ eeDataBits++;
+ } else
+ panic("What's going on with eeprom interface? opcode:"
+ " %#x:%d addr: %#x:%d, data: %d\n", (uint32_t)eeOpcode,
+ (uint32_t)eeOpBits, (uint32_t)eeAddr,
+ (uint32_t)eeAddrBits, (uint32_t)eeDataBits);
+
+ // Reset everything for the next command
+ if ((eeDataBits == 16 && eeOpcode == EEPROM_READ_OPCODE_SPI) ||
+ (eeDataBits == 8 && eeOpcode == EEPROM_RDSR_OPCODE_SPI)) {
+ eeOpBits = 0;
+ eeAddrBits = 0;
+ eeDataBits = 0;
+ eeOpcode = 0;
+ eeAddr = 0;
+ }
+
+ DPRINTF(Ethernet, "EEPROM: opcode: %#X:%d\n",
+ (uint32_t)eeOpcode, (uint32_t) eeOpBits);
+ if (eeOpBits == 8 && !(eeOpcode == EEPROM_READ_OPCODE_SPI ||
+ eeOpcode == EEPROM_RDSR_OPCODE_SPI ))
+ panic("Unknown eeprom opcode: %#X:%d\n", (uint32_t)eeOpcode,
+ (uint32_t)eeOpBits);
+
+
+ }
+ // If driver requests eeprom access, immediately give it to it
+ regs.eecd.ee_gnt = regs.eecd.ee_req;
+ break;
+ case EERD:
+ regs.eerd.reg = val;
+ break;
+ case ICR:
+ regs.icd.reg = val;
+ break;
+ case IMC:
+ regs.imc.reg = val;
+ break;
+ case RCTL:
+ regs.rctl.reg = val;
+ break;
+ case TCTL:
+ regs.tctl.reg = val;
+ break;
+ case MANC:
+ regs.manc.reg = val;
+ break;
+ default:
+ panic("Write request to unknown register number: %#x\n", daddr);
+ };
pkt->result = Packet::Success;
return pioDelay;
namespace iGbReg {
-const uint32_t CTRL = 0x00000;
-const uint32_t STATUS = 0x00008;
-const uint32_t EECD = 0x00010;
+const uint32_t CTRL = 0x00000; //*
+const uint32_t STATUS = 0x00008; //*
+const uint32_t EECD = 0x00010; //*
+const uint32_t EERD = 0x00014; //*
const uint32_t CTRL_EXT = 0x00018;
const uint32_t PBA = 0x01000;
-const uint32_t ICR = 0x000C0;
+const uint32_t ICR = 0x000C0; //*
const uint32_t ITR = 0x000C4;
const uint32_t ICS = 0x000C8;
const uint32_t IMS = 0x000D0;
-const uint32_t IMC = 0x000D8;
-const uint32_t RCTL = 0x00100;
+const uint32_t IMC = 0x000D8; //*
+const uint32_t RCTL = 0x00100; //*
const uint32_t RDBAL = 0x02800;
const uint32_t RDBAH = 0x02804;
const uint32_t RDLEN = 0x02808;
const uint32_t RDTR = 0x02820;
const uint32_t RADV = 0x0282C;
const uint32_t RSRPD = 0x02C00;
-const uint32_t TCTL = 0x00400;
+const uint32_t TCTL = 0x00400; //*
const uint32_t TDBAL = 0x03800;
const uint32_t TDBAH = 0x03804;
const uint32_t TDLEN = 0x03808;
const uint32_t TSPMT = 0x03830;
const uint32_t RXDCTL = 0x02828;
const uint32_t RXCSUM = 0x05000;
+const uint32_t MANC = 0x05820;//*
+
+const uint8_t EEPROM_READ_OPCODE_SPI = 0x03;
+const uint8_t EEPROM_RDSR_OPCODE_SPI = 0x05;
+const uint8_t EEPROM_SIZE = 64;
struct RxDesc {
Addr buf;
} type;
};
+struct Regs {
+ union { // 0x0000 CTRL Register
+ uint32_t reg;
+ struct {
+ uint8_t fd:1; // full duplex
+ uint8_t bem:1; // big endian mode
+ uint8_t pcipr:1; // PCI priority
+ uint8_t lrst:1; // link reset
+ uint8_t tme:1; // test mode enable
+ uint8_t asde:1; // Auto-speed detection
+ uint8_t slu:1; // Set link up
+ uint8_t ilos:1; // invert los-of-signal
+ uint8_t speed:2; // speed selection bits
+ uint8_t be32:1; // big endian mode 32
+ uint8_t frcspd:1; // force speed
+ uint8_t frcdpx:1; // force duplex
+ uint8_t duden:1; // dock/undock enable
+ uint8_t dudpol:1; // dock/undock polarity
+ uint8_t fphyrst:1; // force phy reset
+ uint8_t extlen:1; // external link status enable
+ uint8_t rsvd:1; // reserved
+ uint8_t sdp0d:1; // software controlled pin data
+ uint8_t sdp1d:1; // software controlled pin data
+ uint8_t sdp2d:1; // software controlled pin data
+ uint8_t sdp3d:1; // software controlled pin data
+ uint8_t sdp0i:1; // software controlled pin dir
+ uint8_t sdp1i:1; // software controlled pin dir
+ uint8_t sdp2i:1; // software controlled pin dir
+ uint8_t sdp3i:1; // software controlled pin dir
+ uint8_t rst:1; // reset
+ uint8_t rfce:1; // receive flow control enable
+ uint8_t tfce:1; // transmit flow control enable
+ uint8_t rte:1; // routing tag enable
+ uint8_t vme:1; // vlan enable
+ uint8_t phyrst:1; // phy reset
+ } ;
+ } ctrl;
+
+ union { // 0x0008 STATUS
+ uint32_t reg;
+ struct {
+ uint8_t fd:1; // full duplex
+ uint8_t lu:1; // link up
+ uint8_t func:2; // function id
+ uint8_t txoff:1; // transmission paused
+ uint8_t tbimode:1; // tbi mode
+ uint8_t speed:2; // link speed
+ uint8_t asdv:2; // auto speed detection value
+ uint8_t mtxckok:1; // mtx clock running ok
+ uint8_t pci66:1; // In 66Mhz pci slot
+ uint8_t bus64:1; // in 64 bit slot
+ uint8_t pcix:1; // Pci mode
+ uint8_t pcixspd:1; // pci x speed
+ uint8_t reserved; // reserved
+ } ;
+ } sts;
+
+ union { // 0x0010 EECD
+ uint32_t reg;
+ struct {
+ uint8_t sk:1; // clack input to the eeprom
+ uint8_t cs:1; // chip select to eeprom
+ uint8_t din:1; // data input to eeprom
+ uint8_t dout:1; // data output bit
+ uint8_t fwe:2; // flash write enable
+ uint8_t ee_req:1; // request eeprom access
+ uint8_t ee_gnt:1; // grant eeprom access
+ uint8_t ee_pres:1; // eeprom present
+ uint8_t ee_size:1; // eeprom size
+ uint8_t ee_sz1:1; // eeprom size
+ uint8_t rsvd:2; // reserved
+ uint8_t ee_type:1; // type of eeprom
+ } ;
+ } eecd;
+
+ union { // 0x0014 EERD
+ uint32_t reg;
+ struct {
+ uint8_t start:1; // start read
+ uint8_t done:1; // done read
+ uint16_t addr:14; // address
+ uint16_t data; // data
+ };
+ } eerd;
+
+ union { // 0x00C0 ICR
+ uint32_t reg;
+ struct {
+ uint8_t txdw:1; // tx descr witten back
+ uint8_t txqe:1; // tx queue empty
+ uint8_t lsc:1; // link status change
+ uint8_t rxseq:1; // rcv sequence error
+ uint8_t rxdmt0:1; // rcv descriptor min thresh
+ uint8_t rsvd1:1; // reserved
+ uint8_t rxo:1; // receive overrunn
+ uint8_t rxt0:1; // receiver timer interrupt
+ uint8_t rsvd2:1; // reserved
+ uint8_t mdac:1; // mdi/o access complete
+ uint8_t rxcfg:1; // recv /c/ ordered sets
+ uint8_t rsvd3:1; // reserved
+ uint8_t phyint:1; // phy interrupt
+ uint8_t gpi1:1; // gpi int 1
+ uint8_t gpi2:1; // gpi int 2
+ uint8_t txdlow:1; // transmit desc low thresh
+ uint8_t srpd:1; // small receive packet detected
+ uint16_t rsvd4:15; // reserved
+ } ;
+ } icd;
+
+ union { // 0x00C0 IMC
+ uint32_t reg;
+ struct {
+ uint8_t txdw:1; // tx descr witten back
+ uint8_t txqe:1; // tx queue empty
+ uint8_t lsc:1; // link status change
+ uint8_t rxseq:1; // rcv sequence error
+ uint8_t rxdmt0:1; // rcv descriptor min thresh
+ uint8_t rsvd1:1; // reserved
+ uint8_t rxo:1; // receive overrunn
+ uint8_t rxt0:1; // receiver timer interrupt
+ uint8_t rsvd2:1; // reserved
+ uint8_t mdac:1; // mdi/o access complete
+ uint8_t rxcfg:1; // recv /c/ ordered sets
+ uint8_t rsvd3:1; // reserved
+ uint8_t phyint:1; // phy interrupt
+ uint8_t gpi1:1; // gpi int 1
+ uint8_t gpi2:1; // gpi int 2
+ uint8_t txdlow:1; // transmit desc low thresh
+ uint8_t srpd:1; // small receive packet detected
+ uint16_t rsvd4:15; // reserved
+ } ;
+ } imc;
+
+ union { // 0x0100 RCTL
+ uint32_t reg;
+ struct {
+ uint8_t rst:1; // Reset
+ uint8_t en:1; // Enable
+ uint8_t sbp:1; // Store bad packets
+ uint8_t upe:1; // Unicast Promiscuous enabled
+ uint8_t mpe:1; // Multicast promiscuous enabled
+ uint8_t lpe:1; // long packet reception enabled
+ uint8_t lbm:2; //
+ uint8_t rdmts:2; //
+ uint8_t rsvd:2; //
+ uint8_t mo:2; //
+ uint8_t mdr:1; //
+ uint8_t bam:1; //
+ uint8_t bsize:2; //
+ uint8_t vpe:1; //
+ uint8_t cfien:1; //
+ uint8_t cfi:1; //
+ uint8_t rsvd2:1; //
+ uint8_t dpf:1; // discard pause frames
+ uint8_t pmcf:1; // pass mac control frames
+ uint8_t rsvd3:1; // reserved
+ uint8_t bsex:1; // buffer size extension
+ uint8_t secrc:1; // strip ethernet crc from incoming packet
+ uint8_t rsvd1:5; // reserved
+ } ;
+ } rctl;
+
+ union { // 0x0400 TCTL
+ uint32_t reg;
+ struct {
+ uint8_t rst:1; // Reset
+ uint8_t en:1; // Enable
+ uint8_t bce:1; // busy check enable
+ uint8_t psp:1; // pad short packets
+ uint8_t ct:8; // collision threshold
+ uint16_t cold:10; // collision distance
+ uint8_t swxoff:1; // software xoff transmission
+ uint8_t pbe:1; // packet burst enable
+ uint8_t rtlc:1; // retransmit late collisions
+ uint8_t nrtu:1; // on underrun no TX
+ uint8_t mulr:1; // multiple request
+ uint8_t rsvd:5; // reserved
+ } ;
+ } tctl;
+
+ union { // 0x5820 MANC
+ uint32_t reg;
+ struct {
+ uint8_t smbus:1; // SMBus enabled #####
+ uint8_t asf:1; // ASF enabled #####
+ uint8_t ronforce:1; // reset of force
+ uint8_t rsvd:5; // reserved
+ uint8_t rmcp1:1; // rcmp1 filtering
+ uint8_t rmcp2:1; // rcmp2 filtering
+ uint8_t ipv4:1; // enable ipv4
+ uint8_t ipv6:1; // enable ipv6
+ uint8_t snap:1; // accept snap
+ uint8_t arp:1; // filter arp #####
+ uint8_t neighbor:1; // neighbor discovery
+ uint8_t arp_resp:1; // arp response
+ uint8_t tcorst:1; // tco reset happened
+ uint8_t rcvtco:1; // receive tco enabled ######
+ uint8_t blkphyrst:1;// block phy resets ########
+ uint8_t rcvall:1; // receive all
+ uint8_t macaddrfltr:1; // mac address filtering ######
+ uint8_t mng2host:1; // mng2 host packets #######
+ uint8_t ipaddrfltr:1; // ip address filtering
+ uint8_t xsumfilter:1; // checksum filtering
+ uint8_t brfilter:1; // broadcast filtering
+ uint8_t smbreq:1; // smb request
+ uint8_t smbgnt:1; // smb grant
+ uint8_t smbclkin:1; // smbclkin
+ uint8_t smbdatain:1; // smbdatain
+ uint8_t smbdataout:1; // smb data out
+ uint8_t smbclkout:1; // smb clock out
+ uint8_t rsvd2:2;
+ };
+ } manc;
+};
+
}; // iGbReg namespace
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