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Diffstat (limited to 'hw/e1000.c')
-rw-r--r--hw/e1000.c167
1 files changed, 117 insertions, 50 deletions
diff --git a/hw/e1000.c b/hw/e1000.c
index 9c764624f9..4573f1301e 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -42,7 +42,7 @@ enum {
DEBUG_GENERAL, DEBUG_IO, DEBUG_MMIO, DEBUG_INTERRUPT,
DEBUG_RX, DEBUG_TX, DEBUG_MDIC, DEBUG_EEPROM,
DEBUG_UNKNOWN, DEBUG_TXSUM, DEBUG_TXERR, DEBUG_RXERR,
- DEBUG_RXFILTER, DEBUG_NOTYET,
+ DEBUG_RXFILTER, DEBUG_PHY, DEBUG_NOTYET,
};
#define DBGBIT(x) (1<<DEBUG_##x)
static int debugflags = DBGBIT(TXERR) | DBGBIT(GENERAL);
@@ -125,6 +125,8 @@ typedef struct E1000State_st {
uint16_t reading;
uint32_t old_eecd;
} eecd_state;
+
+ QEMUTimer *autoneg_timer;
} E1000State;
#define defreg(x) x = (E1000_##x>>2)
@@ -142,6 +144,48 @@ enum {
defreg(VET),
};
+static void
+e1000_link_down(E1000State *s)
+{
+ s->mac_reg[STATUS] &= ~E1000_STATUS_LU;
+ s->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
+}
+
+static void
+e1000_link_up(E1000State *s)
+{
+ s->mac_reg[STATUS] |= E1000_STATUS_LU;
+ s->phy_reg[PHY_STATUS] |= MII_SR_LINK_STATUS;
+}
+
+static void
+set_phy_ctrl(E1000State *s, int index, uint16_t val)
+{
+ if ((val & MII_CR_AUTO_NEG_EN) && (val & MII_CR_RESTART_AUTO_NEG)) {
+ s->nic->nc.link_down = true;
+ e1000_link_down(s);
+ s->phy_reg[PHY_STATUS] &= ~MII_SR_AUTONEG_COMPLETE;
+ DBGOUT(PHY, "Start link auto negotiation\n");
+ qemu_mod_timer(s->autoneg_timer, qemu_get_clock_ms(vm_clock) + 500);
+ }
+}
+
+static void
+e1000_autoneg_timer(void *opaque)
+{
+ E1000State *s = opaque;
+ s->nic->nc.link_down = false;
+ e1000_link_up(s);
+ s->phy_reg[PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE;
+ DBGOUT(PHY, "Auto negotiation is completed\n");
+}
+
+static void (*phyreg_writeops[])(E1000State *, int, uint16_t) = {
+ [PHY_CTRL] = set_phy_ctrl,
+};
+
+enum { NPHYWRITEOPS = ARRAY_SIZE(phyreg_writeops) };
+
enum { PHY_R = 1, PHY_W = 2, PHY_RW = PHY_R | PHY_W };
static const char phy_regcap[0x20] = {
[PHY_STATUS] = PHY_R, [M88E1000_EXT_PHY_SPEC_CTRL] = PHY_RW,
@@ -152,11 +196,37 @@ static const char phy_regcap[0x20] = {
[PHY_ID2] = PHY_R, [M88E1000_PHY_SPEC_STATUS] = PHY_R
};
+static const uint16_t phy_reg_init[] = {
+ [PHY_CTRL] = 0x1140,
+ [PHY_STATUS] = 0x794d, /* link initially up with not completed autoneg */
+ [PHY_ID1] = 0x141, [PHY_ID2] = PHY_ID2_INIT,
+ [PHY_1000T_CTRL] = 0x0e00, [M88E1000_PHY_SPEC_CTRL] = 0x360,
+ [M88E1000_EXT_PHY_SPEC_CTRL] = 0x0d60, [PHY_AUTONEG_ADV] = 0xde1,
+ [PHY_LP_ABILITY] = 0x1e0, [PHY_1000T_STATUS] = 0x3c00,
+ [M88E1000_PHY_SPEC_STATUS] = 0xac00,
+};
+
+static const uint32_t mac_reg_init[] = {
+ [PBA] = 0x00100030,
+ [LEDCTL] = 0x602,
+ [CTRL] = E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN0 |
+ E1000_CTRL_SPD_1000 | E1000_CTRL_SLU,
+ [STATUS] = 0x80000000 | E1000_STATUS_GIO_MASTER_ENABLE |
+ E1000_STATUS_ASDV | E1000_STATUS_MTXCKOK |
+ E1000_STATUS_SPEED_1000 | E1000_STATUS_FD |
+ E1000_STATUS_LU,
+ [MANC] = E1000_MANC_EN_MNG2HOST | E1000_MANC_RCV_TCO_EN |
+ E1000_MANC_ARP_EN | E1000_MANC_0298_EN |
+ E1000_MANC_RMCP_EN,
+};
+
static void
set_interrupt_cause(E1000State *s, int index, uint32_t val)
{
- if (val)
+ if (val && (E1000_DEVID >= E1000_DEV_ID_82547EI_MOBILE)) {
+ /* Only for 8257x */
val |= E1000_ICR_INT_ASSERTED;
+ }
s->mac_reg[ICR] = val;
s->mac_reg[ICS] = val;
qemu_set_irq(s->dev.irq[0], (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0);
@@ -193,6 +263,23 @@ rxbufsize(uint32_t v)
return 2048;
}
+static void e1000_reset(void *opaque)
+{
+ E1000State *d = opaque;
+
+ qemu_del_timer(d->autoneg_timer);
+ memset(d->phy_reg, 0, sizeof d->phy_reg);
+ memmove(d->phy_reg, phy_reg_init, sizeof phy_reg_init);
+ memset(d->mac_reg, 0, sizeof d->mac_reg);
+ memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
+ d->rxbuf_min_shift = 1;
+ memset(&d->tx, 0, sizeof d->tx);
+
+ if (d->nic->nc.link_down) {
+ e1000_link_down(d);
+ }
+}
+
static void
set_ctrl(E1000State *s, int index, uint32_t val)
{
@@ -230,11 +317,18 @@ set_mdic(E1000State *s, int index, uint32_t val)
if (!(phy_regcap[addr] & PHY_W)) {
DBGOUT(MDIC, "MDIC write reg %x unhandled\n", addr);
val |= E1000_MDIC_ERROR;
- } else
+ } else {
+ if (addr < NPHYWRITEOPS && phyreg_writeops[addr]) {
+ phyreg_writeops[addr](s, index, data);
+ }
s->phy_reg[addr] = data;
+ }
}
s->mac_reg[MDIC] = val | E1000_MDIC_READY;
- set_ics(s, 0, E1000_ICR_MDAC);
+
+ if (val & E1000_MDIC_INT_EN) {
+ set_ics(s, 0, E1000_ICR_MDAC);
+ }
}
static uint32_t
@@ -349,6 +443,16 @@ fcs_len(E1000State *s)
}
static void
+e1000_send_packet(E1000State *s, const uint8_t *buf, int size)
+{
+ if (s->phy_reg[PHY_CTRL] & MII_CR_LOOPBACK) {
+ s->nic->nc.info->receive(&s->nic->nc, buf, size);
+ } else {
+ qemu_send_packet(&s->nic->nc, buf, size);
+ }
+}
+
+static void
xmit_seg(E1000State *s)
{
uint16_t len, *sp;
@@ -397,9 +501,9 @@ xmit_seg(E1000State *s)
memmove(tp->vlan, tp->data, 4);
memmove(tp->data, tp->data + 4, 8);
memcpy(tp->data + 8, tp->vlan_header, 4);
- qemu_send_packet(&s->nic->nc, tp->vlan, tp->size + 4);
+ e1000_send_packet(s, tp->vlan, tp->size + 4);
} else
- qemu_send_packet(&s->nic->nc, tp->data, tp->size);
+ e1000_send_packet(s, tp->data, tp->size);
s->mac_reg[TPT]++;
s->mac_reg[GPTC]++;
n = s->mac_reg[TOTL];
@@ -622,11 +726,9 @@ e1000_set_link_status(VLANClientState *nc)
uint32_t old_status = s->mac_reg[STATUS];
if (nc->link_down) {
- s->mac_reg[STATUS] &= ~E1000_STATUS_LU;
- s->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
+ e1000_link_down(s);
} else {
- s->mac_reg[STATUS] |= E1000_STATUS_LU;
- s->phy_reg[PHY_STATUS] |= MII_SR_LINK_STATUS;
+ e1000_link_up(s);
}
if (s->mac_reg[STATUS] != old_status)
@@ -901,6 +1003,7 @@ static void (*macreg_writeops[])(E1000State *, int, uint32_t) = {
[MTA ... MTA+127] = &mac_writereg,
[VFTA ... VFTA+127] = &mac_writereg,
};
+
enum { NWRITEOPS = ARRAY_SIZE(macreg_writeops) };
static void
@@ -1061,29 +1164,6 @@ static const uint16_t e1000_eeprom_template[64] = {
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000,
};
-static const uint16_t phy_reg_init[] = {
- [PHY_CTRL] = 0x1140, [PHY_STATUS] = 0x796d, // link initially up
- [PHY_ID1] = 0x141, [PHY_ID2] = PHY_ID2_INIT,
- [PHY_1000T_CTRL] = 0x0e00, [M88E1000_PHY_SPEC_CTRL] = 0x360,
- [M88E1000_EXT_PHY_SPEC_CTRL] = 0x0d60, [PHY_AUTONEG_ADV] = 0xde1,
- [PHY_LP_ABILITY] = 0x1e0, [PHY_1000T_STATUS] = 0x3c00,
- [M88E1000_PHY_SPEC_STATUS] = 0xac00,
-};
-
-static const uint32_t mac_reg_init[] = {
- [PBA] = 0x00100030,
- [LEDCTL] = 0x602,
- [CTRL] = E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN0 |
- E1000_CTRL_SPD_1000 | E1000_CTRL_SLU,
- [STATUS] = 0x80000000 | E1000_STATUS_GIO_MASTER_ENABLE |
- E1000_STATUS_ASDV | E1000_STATUS_MTXCKOK |
- E1000_STATUS_SPEED_1000 | E1000_STATUS_FD |
- E1000_STATUS_LU,
- [MANC] = E1000_MANC_EN_MNG2HOST | E1000_MANC_RCV_TCO_EN |
- E1000_MANC_ARP_EN | E1000_MANC_0298_EN |
- E1000_MANC_RMCP_EN,
-};
-
/* PCI interface */
static void
@@ -1117,29 +1197,14 @@ pci_e1000_uninit(PCIDevice *dev)
{
E1000State *d = DO_UPCAST(E1000State, dev, dev);
+ qemu_del_timer(d->autoneg_timer);
+ qemu_free_timer(d->autoneg_timer);
memory_region_destroy(&d->mmio);
memory_region_destroy(&d->io);
qemu_del_vlan_client(&d->nic->nc);
return 0;
}
-static void e1000_reset(void *opaque)
-{
- E1000State *d = opaque;
-
- memset(d->phy_reg, 0, sizeof d->phy_reg);
- memmove(d->phy_reg, phy_reg_init, sizeof phy_reg_init);
- memset(d->mac_reg, 0, sizeof d->mac_reg);
- memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
- d->rxbuf_min_shift = 1;
- memset(&d->tx, 0, sizeof d->tx);
-
- if (d->nic->nc.link_down) {
- d->mac_reg[STATUS] &= ~E1000_STATUS_LU;
- d->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
- }
-}
-
static NetClientInfo net_e1000_info = {
.type = NET_CLIENT_TYPE_NIC,
.size = sizeof(NICState),
@@ -1188,6 +1253,8 @@ static int pci_e1000_init(PCIDevice *pci_dev)
add_boot_device_path(d->conf.bootindex, &pci_dev->qdev, "/ethernet-phy@0");
+ d->autoneg_timer = qemu_new_timer_ms(vm_clock, e1000_autoneg_timer, d);
+
return 0;
}
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-04 09:05:19 +0000