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e1000: remove old compatibility code

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This code is not needed anymore in the supported machine types.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2023-09-22 11:52:11 +02:00
parent 7191f24c7f
commit fa4ec9ffda
1 changed files with 27 additions and 52 deletions
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79
hw/net/e1000.c
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@ -127,13 +127,9 @@ struct E1000State_st {
QEMUTimer *flush_queue_timer;
/* Compatibility flags for migration to/from qemu 1.3.0 and older */
#define E1000_FLAG_AUTONEG_BIT 0
#define E1000_FLAG_MIT_BIT 1
#define E1000_FLAG_MAC_BIT 2
#define E1000_FLAG_TSO_BIT 3
#define E1000_FLAG_VET_BIT 4
#define E1000_FLAG_AUTONEG (1 << E1000_FLAG_AUTONEG_BIT)
#define E1000_FLAG_MIT (1 << E1000_FLAG_MIT_BIT)
#define E1000_FLAG_MAC (1 << E1000_FLAG_MAC_BIT)
#define E1000_FLAG_TSO (1 << E1000_FLAG_TSO_BIT)
#define E1000_FLAG_VET (1 << E1000_FLAG_VET_BIT)
@ -180,7 +176,7 @@ e1000_autoneg_done(E1000State *s)
static bool
have_autoneg(E1000State *s)
{
return chkflag(AUTONEG) && (s->phy_reg[MII_BMCR] & MII_BMCR_AUTOEN);
return (s->phy_reg[MII_BMCR] & MII_BMCR_AUTOEN);
}
static void
@ -308,35 +304,34 @@ set_interrupt_cause(E1000State *s, int index, uint32_t val)
if (s->mit_timer_on) {
return;
}
if (chkflag(MIT)) {
/* Compute the next mitigation delay according to pending
* interrupts and the current values of RADV (provided
* RDTR!=0), TADV and ITR.
* Then rearm the timer.
*/
mit_delay = 0;
if (s->mit_ide &&
(pending_ints & (E1000_ICR_TXQE | E1000_ICR_TXDW))) {
mit_update_delay(&mit_delay, s->mac_reg[TADV] * 4);
}
if (s->mac_reg[RDTR] && (pending_ints & E1000_ICS_RXT0)) {
mit_update_delay(&mit_delay, s->mac_reg[RADV] * 4);
}
mit_update_delay(&mit_delay, s->mac_reg[ITR]);
/*
* According to e1000 SPEC, the Ethernet controller guarantees
* a maximum observable interrupt rate of 7813 interrupts/sec.
* Thus if mit_delay < 500 then the delay should be set to the
* minimum delay possible which is 500.
*/
mit_delay = (mit_delay < 500) ? 500 : mit_delay;
s->mit_timer_on = 1;
timer_mod(s->mit_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
mit_delay * 256);
s->mit_ide = 0;
/* Compute the next mitigation delay according to pending
* interrupts and the current values of RADV (provided
* RDTR!=0), TADV and ITR.
* Then rearm the timer.
*/
mit_delay = 0;
if (s->mit_ide &&
(pending_ints & (E1000_ICR_TXQE | E1000_ICR_TXDW))) {
mit_update_delay(&mit_delay, s->mac_reg[TADV] * 4);
}
if (s->mac_reg[RDTR] && (pending_ints & E1000_ICS_RXT0)) {
mit_update_delay(&mit_delay, s->mac_reg[RADV] * 4);
}
mit_update_delay(&mit_delay, s->mac_reg[ITR]);
/*
* According to e1000 SPEC, the Ethernet controller guarantees
* a maximum observable interrupt rate of 7813 interrupts/sec.
* Thus if mit_delay < 500 then the delay should be set to the
* minimum delay possible which is 500.
*/
mit_delay = (mit_delay < 500) ? 500 : mit_delay;
s->mit_timer_on = 1;
timer_mod(s->mit_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
mit_delay * 256);
s->mit_ide = 0;
}
s->mit_irq_level = (pending_ints != 0);
@ -1223,9 +1218,6 @@ enum { MAC_ACCESS_PARTIAL = 1, MAC_ACCESS_FLAG_NEEDED = 2 };
* n - flag needed
* p - partially implenented */
static const uint8_t mac_reg_access[0x8000] = {
[RDTR] = markflag(MIT), [TADV] = markflag(MIT),
[RADV] = markflag(MIT), [ITR] = markflag(MIT),
[IPAV] = markflag(MAC), [WUC] = markflag(MAC),
[IP6AT] = markflag(MAC), [IP4AT] = markflag(MAC),
[FFVT] = markflag(MAC), [WUPM] = markflag(MAC),
@ -1394,11 +1386,6 @@ static int e1000_post_load(void *opaque, int version_id)
E1000State *s = opaque;
NetClientState *nc = qemu_get_queue(s->nic);
if (!chkflag(MIT)) {
s->mac_reg[ITR] = s->mac_reg[RDTR] = s->mac_reg[RADV] =
s->mac_reg[TADV] = 0;
s->mit_irq_level = false;
}
s->mit_ide = 0;
s->mit_timer_on = true;
timer_mod(s->mit_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 1);
@ -1432,13 +1419,6 @@ static int e1000_tx_tso_post_load(void *opaque, int version_id)
return 0;
}
static bool e1000_mit_state_needed(void *opaque)
{
E1000State *s = opaque;
return chkflag(MIT);
}
static bool e1000_full_mac_needed(void *opaque)
{
E1000State *s = opaque;
@ -1457,7 +1437,6 @@ static const VMStateDescription vmstate_e1000_mit_state = {
.name = "e1000/mit_state",
.version_id = 1,
.minimum_version_id = 1,
.needed = e1000_mit_state_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT32(mac_reg[RDTR], E1000State),
VMSTATE_UINT32(mac_reg[RADV], E1000State),
@ -1699,10 +1678,6 @@ static void pci_e1000_realize(PCIDevice *pci_dev, Error **errp)
static Property e1000_properties[] = {
DEFINE_NIC_PROPERTIES(E1000State, conf),
DEFINE_PROP_BIT("autonegotiation", E1000State,
compat_flags, E1000_FLAG_AUTONEG_BIT, true),
DEFINE_PROP_BIT("mitigation", E1000State,
compat_flags, E1000_FLAG_MIT_BIT, true),
DEFINE_PROP_BIT("extra_mac_registers", E1000State,
compat_flags, E1000_FLAG_MAC_BIT, true),
DEFINE_PROP_BIT("migrate_tso_props", E1000State,