qemu/hw/scsi
Mark Cave-Ayland 442de89a93 esp.c: keep track of the DRQ state during DMA
Currently the DRQ IRQ is updated every time DMA data is sent/received which
is both inefficient and causes excessive logging of the DRQ state. Add a
new drq_state bool that only updates the DRQ IRQ if its state changes.

This commit adds the new drq_state bool to the migration state: since the
version number has already been increased earlier in the series, there is
no need to repeat it again here. The DRQ IRQ is (currently) only used for
PDMA transfers which already have a migration break in this series so
there are no problems setting its value post-load.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-87-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
..
emulation.c scsi-generic: avoid invalid access to struct when emulating block limits 2018-11-06 21:35:06 +01:00
esp-pci.c hw/scsi/esp-pci: set DMA_STAT_BCMBLT when BLAST command issued 2024-01-19 12:28:59 +01:00
esp.c esp.c: keep track of the DRQ state during DMA 2024-02-13 19:37:28 +00:00
Kconfig hw/scsi: Introduce VHOST_SCSI_COMMON symbol in Kconfig 2023-06-23 02:54:44 -04:00
lsi53c895a.c hw/scsi/lsi53c895a: add missing decrement of reentrancy counter 2024-02-05 14:21:21 +01:00
megasas.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
meson.build hw/virtio: Build various target-agnostic objects just once 2023-06-23 02:54:44 -04:00
mfi.h hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
mpi.h hw: Add support for LSI SAS1068 (mptsas) device 2016-02-09 15:45:26 +01:00
mptconfig.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
mptendian.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
mptsas.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
mptsas.h include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
scsi-bus.c scsi: Don't ignore most usb-storage properties 2024-02-07 15:25:13 +01:00
scsi-disk.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
scsi-generic.c scsi: don't lock AioContext in I/O code path 2023-12-21 22:49:27 +01:00
spapr_vscsi.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
srp.h spapr-vscsi: add task management 2013-09-12 08:46:21 +02:00
trace-events esp.c: introduce esp_set_phase() helper function 2024-02-13 19:37:23 +00:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vhost-scsi-common.c vhost-user-scsi: support reconnect to backend 2023-10-22 05:18:17 -04:00
vhost-scsi.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
vhost-user-scsi.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
viosrp.h Updated the FSF address to <https://www.gnu.org/licenses/> 2023-02-27 09:15:39 +01:00
virtio-scsi-dataplane.c Rename "QEMU global mutex" to "BQL" in comments and docs 2024-01-08 10:45:43 -05:00
virtio-scsi.c virtio-scsi: Attach event vq notifier with no_poll 2024-02-07 21:50:32 +01:00
vmw_pvscsi.c hw/scsi: Constify VMState 2023-12-30 07:38:06 +11:00
vmw_pvscsi.h scsi: VMWare PVSCSI paravirtual device implementation 2013-04-19 10:44:17 +02:00