e1000e: Remove pending interrupt flags

They are duplicate of running throttling timer flags and incomplete as
the flags are not cleared when the interrupts are fired or the device is
reset.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

4 files changed, 5 insertions, 23 deletions

diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c
index d591d01c07..0bc222d354 100644
--- a/hw/net/e1000e.c
+++ b/hw/net/e1000e.c
@@ -631,12 +631,11 @@ static const VMStateDescription e1000e_vmstate = {
         VMSTATE_E1000E_INTR_DELAY_TIMER(core.tidv, E1000EState),
 
         VMSTATE_E1000E_INTR_DELAY_TIMER(core.itr, E1000EState),
-        VMSTATE_BOOL(core.itr_intr_pending, E1000EState),
+        VMSTATE_UNUSED(1),
 
         VMSTATE_E1000E_INTR_DELAY_TIMER_ARRAY(core.eitr, E1000EState,
                                               E1000E_MSIX_VEC_NUM),
-        VMSTATE_BOOL_ARRAY(core.eitr_intr_pending, E1000EState,
-                           E1000E_MSIX_VEC_NUM),
+        VMSTATE_UNUSED(E1000E_MSIX_VEC_NUM),
 
         VMSTATE_UINT32(core.itr_guest_value, E1000EState),
         VMSTATE_UINT32_ARRAY(core.eitr_guest_value, E1000EState,
diff --git a/hw/net/e1000e_core.c b/hw/net/e1000e_core.c
index 87f964cdc1..37aec6a970 100644
--- a/hw/net/e1000e_core.c
+++ b/hw/net/e1000e_core.c
@@ -154,11 +154,6 @@ e1000e_intrmgr_on_throttling_timer(void *opaque)
 
     timer->running = false;
 
-    if (!timer->core->itr_intr_pending) {
-        trace_e1000e_irq_throttling_no_pending_interrupts();
-        return;
-    }
-
     if (msi_enabled(timer->core->owner)) {
         trace_e1000e_irq_msi_notify_postponed();
         /* Clear msi_causes_pending to fire MSI eventually */
@@ -180,11 +175,6 @@ e1000e_intrmgr_on_msix_throttling_timer(void *opaque)
 
     timer->running = false;
 
-    if (!timer->core->eitr_intr_pending[idx]) {
-        trace_e1000e_irq_throttling_no_pending_vec(idx);
-        return;
-    }
-
     trace_e1000e_irq_msix_notify_postponed_vec(idx);
     msix_notify(timer->core->owner, idx);
 }
@@ -2015,13 +2005,11 @@ e1000e_clear_ims_bits(E1000ECore *core, uint32_t bits)
 }
 
 static inline bool
-e1000e_postpone_interrupt(bool *interrupt_pending,
-                           E1000IntrDelayTimer *timer)
+e1000e_postpone_interrupt(E1000IntrDelayTimer *timer)
 {
     if (timer->running) {
         trace_e1000e_irq_postponed_by_xitr(timer->delay_reg << 2);
 
-        *interrupt_pending = true;
         return true;
     }
 
@@ -2035,14 +2023,13 @@ e1000e_postpone_interrupt(bool *interrupt_pending,
 static inline bool
 e1000e_itr_should_postpone(E1000ECore *core)
 {
-    return e1000e_postpone_interrupt(&core->itr_intr_pending, &core->itr);
+    return e1000e_postpone_interrupt(&core->itr);
 }
 
 static inline bool
 e1000e_eitr_should_postpone(E1000ECore *core, int idx)
 {
-    return e1000e_postpone_interrupt(&core->eitr_intr_pending[idx],
-                                     &core->eitr[idx]);
+    return e1000e_postpone_interrupt(&core->eitr[idx]);
 }
 
 static void
diff --git a/hw/net/e1000e_core.h b/hw/net/e1000e_core.h
index b8f38c47a0..d0a14b4523 100644
--- a/hw/net/e1000e_core.h
+++ b/hw/net/e1000e_core.h
@@ -95,10 +95,8 @@ struct E1000Core {
     E1000IntrDelayTimer tidv;
 
     E1000IntrDelayTimer itr;
-    bool itr_intr_pending;
 
     E1000IntrDelayTimer eitr[E1000E_MSIX_VEC_NUM];
-    bool eitr_intr_pending[E1000E_MSIX_VEC_NUM];
 
     VMChangeStateEntry *vmstate;
 
diff --git a/hw/net/trace-events b/hw/net/trace-events
index 4c0ec3fda1..8fa4299704 100644
--- a/hw/net/trace-events
+++ b/hw/net/trace-events
@@ -201,10 +201,8 @@ e1000e_rx_metadata_ipv6_filtering_disabled(void) "IPv6 RX filtering disabled by
 e1000e_vlan_vet(uint16_t vet) "Setting VLAN ethernet type 0x%X"
 
 e1000e_irq_msi_notify(uint32_t cause) "MSI notify 0x%x"
-e1000e_irq_throttling_no_pending_interrupts(void) "No pending interrupts to notify"
 e1000e_irq_msi_notify_postponed(void) "Sending MSI postponed by ITR"
 e1000e_irq_legacy_notify_postponed(void) "Raising legacy IRQ postponed by ITR"
-e1000e_irq_throttling_no_pending_vec(int idx) "No pending interrupts for vector %d"
 e1000e_irq_msix_notify_postponed_vec(int idx) "Sending MSI-X postponed by EITR[%d]"
 e1000e_irq_legacy_notify(bool level) "IRQ line state: %d"
 e1000e_irq_msix_notify_vec(uint32_t vector) "MSI-X notify vector 0x%x"