qemu-e2k/hw/net
Ake Koomsin dd0ef12866 e1000e: Fix possible interrupt loss when using MSI
Commit "e1000e: Prevent MSI/MSI-X storms" introduced msi_causes_pending
to prevent interrupt storms problem. It was tested with MSI-X.

In case of MSI, the guest can rely solely on interrupts to clear ICR.
Upon clearing all pending interrupts, msi_causes_pending gets cleared.
However, when e1000e_itr_should_postpone() in e1000e_send_msi() returns
true, MSI never gets fired by e1000e_intrmgr_on_throttling_timer()
because msi_causes_pending is still set. This results in interrupt loss.

To prevent this, we need to clear msi_causes_pending when MSI is going
to get fired by the throttling timer. The guest can then receive
interrupts eventually.

Signed-off-by: Ake Koomsin <ake@igel.co.jp>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-07-26 16:23:54 +08:00
..
can ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY 2022-05-19 16:19:03 +01:00
fsl_etsec hw/net/fsl_etsec/etsec: Remove obsolete and unused etsec_create() 2022-06-11 11:44:50 +02:00
rocker Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
allwinner_emac.c
allwinner-sun8i-emac.c
cadence_gem.c
dp8393x.c
e1000_regs.h
e1000.c e1000: set RX descriptor status in a separate operation 2022-07-06 11:39:09 +08:00
e1000e_core.c e1000e: Fix possible interrupt loss when using MSI 2022-07-26 16:23:54 +08:00
e1000e_core.h
e1000e.c
e1000x_common.c
e1000x_common.h
eepro100.c
etraxfs_eth.c
ftgmac100.c
i82596.c
i82596.h
imx_fec.c Trivial: 3 char repeat typos 2022-06-28 11:06:02 +02:00
Kconfig
lan9118.c ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY 2022-05-19 16:19:03 +01:00
lance.c
lasi_i82596.c
mcf_fec.c
meson.build meson: use have_vhost_* variables to pick sources 2022-05-07 07:46:58 +02:00
mipsnet.c
msf2-emac.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
mv88w8618_eth.c
ne2000-isa.c hw/isa: Inline and remove one-line isa_init_irq() 2022-03-08 19:38:17 +01:00
ne2000-pci.c
ne2000.c
ne2000.h
net_rx_pkt.c
net_rx_pkt.h
net_tx_pkt.c
net_tx_pkt.h
npcm7xx_emc.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
opencores_eth.c
pcnet-pci.c
pcnet.c
pcnet.h
rtl8139.c Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
smc91c111.c
spapr_llan.c
stellaris_enet.c
sungem.c
sunhme.c
trace-events
trace.h
tulip.c tulip: Assign default MAC address if not specified 2022-05-17 16:48:23 +08:00
tulip.h
vhost_net-stub.c
vhost_net.c vhost-net: fix improper cleanup in vhost_net_start 2022-05-16 16:15:41 -04:00
virtio-net.c virtio-net: Expose ctrl virtqueue logic 2022-07-20 16:58:08 +08:00
vmware_utils.h
vmxnet3_defs.h
vmxnet3.c
vmxnet3.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
vmxnet_debug.h
xen_nic.c
xgmac.c
xilinx_axienet.c
xilinx_ethlite.c