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-rw-r--r--hw/net/e1000.c103
1 files changed, 80 insertions, 23 deletions
diff --git a/hw/net/e1000.c b/hw/net/e1000.c
index c7f1695f57..13a9494a8d 100644
--- a/hw/net/e1000.c
+++ b/hw/net/e1000.c
@@ -123,10 +123,15 @@ typedef struct E1000State_st {
#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_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)
uint32_t compat_flags;
+ bool received_tx_tso;
+ bool use_tso_for_migration;
+ e1000x_txd_props mig_props;
} E1000State;
#define chkflag(x) (s->compat_flags & E1000_FLAG_##x)
@@ -618,9 +623,11 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp)
if (dtype == E1000_TXD_CMD_DEXT) { /* context descriptor */
if (le32_to_cpu(xp->cmd_and_length) & E1000_TXD_CMD_TSE) {
e1000x_read_tx_ctx_descr(xp, &tp->tso_props);
+ s->use_tso_for_migration = 1;
tp->tso_frames = 0;
} else {
e1000x_read_tx_ctx_descr(xp, &tp->props);
+ s->use_tso_for_migration = 0;
}
return;
} else if (dtype == (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D)) {
@@ -1362,6 +1369,20 @@ static int e1000_pre_save(void *opaque)
s->phy_reg[PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE;
}
+ /* Decide which set of props to migrate in the main structure */
+ if (chkflag(TSO) || !s->use_tso_for_migration) {
+ /* Either we're migrating with the extra subsection, in which
+ * case the mig_props is always 'props' OR
+ * we've not got the subsection, but 'props' was the last
+ * updated.
+ */
+ s->mig_props = s->tx.props;
+ } else {
+ /* We're not using the subsection, and 'tso_props' was
+ * the last updated.
+ */
+ s->mig_props = s->tx.tso_props;
+ }
return 0;
}
@@ -1390,6 +1411,21 @@ static int e1000_post_load(void *opaque, int version_id)
qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
}
+ s->tx.props = s->mig_props;
+ if (!s->received_tx_tso) {
+ /* We received only one set of offload data (tx.props)
+ * and haven't got tx.tso_props. The best we can do
+ * is dupe the data.
+ */
+ s->tx.tso_props = s->mig_props;
+ }
+ return 0;
+}
+
+static int e1000_tx_tso_post_load(void *opaque, int version_id)
+{
+ E1000State *s = opaque;
+ s->received_tx_tso = true;
return 0;
}
@@ -1407,6 +1443,13 @@ static bool e1000_full_mac_needed(void *opaque)
return chkflag(MAC);
}
+static bool e1000_tso_state_needed(void *opaque)
+{
+ E1000State *s = opaque;
+
+ return chkflag(TSO);
+}
+
static const VMStateDescription vmstate_e1000_mit_state = {
.name = "e1000/mit_state",
.version_id = 1,
@@ -1433,9 +1476,31 @@ static const VMStateDescription vmstate_e1000_full_mac_state = {
}
};
+static const VMStateDescription vmstate_e1000_tx_tso_state = {
+ .name = "e1000/tx_tso_state",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = e1000_tso_state_needed,
+ .post_load = e1000_tx_tso_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(tx.tso_props.ipcss, E1000State),
+ VMSTATE_UINT8(tx.tso_props.ipcso, E1000State),
+ VMSTATE_UINT16(tx.tso_props.ipcse, E1000State),
+ VMSTATE_UINT8(tx.tso_props.tucss, E1000State),
+ VMSTATE_UINT8(tx.tso_props.tucso, E1000State),
+ VMSTATE_UINT16(tx.tso_props.tucse, E1000State),
+ VMSTATE_UINT32(tx.tso_props.paylen, E1000State),
+ VMSTATE_UINT8(tx.tso_props.hdr_len, E1000State),
+ VMSTATE_UINT16(tx.tso_props.mss, E1000State),
+ VMSTATE_INT8(tx.tso_props.ip, E1000State),
+ VMSTATE_INT8(tx.tso_props.tcp, E1000State),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_e1000 = {
.name = "e1000",
- .version_id = 3,
+ .version_id = 2,
.minimum_version_id = 1,
.pre_save = e1000_pre_save,
.post_load = e1000_post_load,
@@ -1450,20 +1515,20 @@ static const VMStateDescription vmstate_e1000 = {
VMSTATE_UINT16(eecd_state.bitnum_out, E1000State),
VMSTATE_UINT16(eecd_state.reading, E1000State),
VMSTATE_UINT32(eecd_state.old_eecd, E1000State),
- VMSTATE_UINT8(tx.props.ipcss, E1000State),
- VMSTATE_UINT8(tx.props.ipcso, E1000State),
- VMSTATE_UINT16(tx.props.ipcse, E1000State),
- VMSTATE_UINT8(tx.props.tucss, E1000State),
- VMSTATE_UINT8(tx.props.tucso, E1000State),
- VMSTATE_UINT16(tx.props.tucse, E1000State),
- VMSTATE_UINT32(tx.props.paylen, E1000State),
- VMSTATE_UINT8(tx.props.hdr_len, E1000State),
- VMSTATE_UINT16(tx.props.mss, E1000State),
+ VMSTATE_UINT8(mig_props.ipcss, E1000State),
+ VMSTATE_UINT8(mig_props.ipcso, E1000State),
+ VMSTATE_UINT16(mig_props.ipcse, E1000State),
+ VMSTATE_UINT8(mig_props.tucss, E1000State),
+ VMSTATE_UINT8(mig_props.tucso, E1000State),
+ VMSTATE_UINT16(mig_props.tucse, E1000State),
+ VMSTATE_UINT32(mig_props.paylen, E1000State),
+ VMSTATE_UINT8(mig_props.hdr_len, E1000State),
+ VMSTATE_UINT16(mig_props.mss, E1000State),
VMSTATE_UINT16(tx.size, E1000State),
VMSTATE_UINT16(tx.tso_frames, E1000State),
VMSTATE_UINT8(tx.sum_needed, E1000State),
- VMSTATE_INT8(tx.props.ip, E1000State),
- VMSTATE_INT8(tx.props.tcp, E1000State),
+ VMSTATE_INT8(mig_props.ip, E1000State),
+ VMSTATE_INT8(mig_props.tcp, E1000State),
VMSTATE_BUFFER(tx.header, E1000State),
VMSTATE_BUFFER(tx.data, E1000State),
VMSTATE_UINT16_ARRAY(eeprom_data, E1000State, 64),
@@ -1508,22 +1573,12 @@ static const VMStateDescription vmstate_e1000 = {
VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, RA, 32),
VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, MTA, 128),
VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, VFTA, 128),
- VMSTATE_UINT8_V(tx.tso_props.ipcss, E1000State, 3),
- VMSTATE_UINT8_V(tx.tso_props.ipcso, E1000State, 3),
- VMSTATE_UINT16_V(tx.tso_props.ipcse, E1000State, 3),
- VMSTATE_UINT8_V(tx.tso_props.tucss, E1000State, 3),
- VMSTATE_UINT8_V(tx.tso_props.tucso, E1000State, 3),
- VMSTATE_UINT16_V(tx.tso_props.tucse, E1000State, 3),
- VMSTATE_UINT32_V(tx.tso_props.paylen, E1000State, 3),
- VMSTATE_UINT8_V(tx.tso_props.hdr_len, E1000State, 3),
- VMSTATE_UINT16_V(tx.tso_props.mss, E1000State, 3),
- VMSTATE_INT8_V(tx.tso_props.ip, E1000State, 3),
- VMSTATE_INT8_V(tx.tso_props.tcp, E1000State, 3),
VMSTATE_END_OF_LIST()
},
.subsections = (const VMStateDescription*[]) {
&vmstate_e1000_mit_state,
&vmstate_e1000_full_mac_state,
+ &vmstate_e1000_tx_tso_state,
NULL
}
};
@@ -1651,6 +1706,8 @@ static Property e1000_properties[] = {
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,
+ compat_flags, E1000_FLAG_TSO_BIT, true),
DEFINE_PROP_END_OF_LIST(),
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 21:13:38 +0000