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hw/net: e1000e: Clear ICR on read when using non MSI-X interrupts #246

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hw/net: e1000e: Clear ICR on read when using non MSI-X interrupts #246

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5 changes: 5 additions & 0 deletions hw/net/e1000e_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2609,6 +2609,11 @@ e1000e_mac_icr_read(E1000ECore *core, int index)
core->mac[ICR] = 0;
}

if (!msix_enabled(core->owner)) {
trace_e1000e_irq_icr_clear_nonmsix_icr_read();
core->mac[ICR] = 0;
}

if ((core->mac[ICR] & E1000_ICR_ASSERTED) &&
(core->mac[CTRL_EXT] & E1000_CTRL_EXT_IAME)) {
trace_e1000e_irq_icr_clear_iame();
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1 change: 1 addition & 0 deletions hw/net/trace-events
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Expand Up @@ -233,6 +233,7 @@ e1000e_irq_write_ics(uint32_t val) "Adding ICR bits 0x%x"
e1000e_irq_icr_process_iame(void) "Clearing IMS bits due to IAME"
e1000e_irq_read_ics(uint32_t ics) "Current ICS: 0x%x"
e1000e_irq_read_ims(uint32_t ims) "Current IMS: 0x%x"
e1000e_irq_icr_clear_nonmsix_icr_read(void) "Clearing ICR on read due to non MSI-X int"
e1000e_irq_icr_read_entry(uint32_t icr) "Starting ICR read. Current ICR: 0x%x"
e1000e_irq_icr_read_exit(uint32_t icr) "Ending ICR read. Current ICR: 0x%x"
e1000e_irq_icr_clear_zero_ims(void) "Clearing ICR on read due to zero IMS"
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